Tip for electrical connection and method of its attachment
SUBSTANCE: tip for electrical connection contains sleeve (2) with cavity (9) partially filled with contact lubrication meant for introduction of electric cable (22) end in it and containing section (5) of crimping designed with possibility of its radial deforming. End includes also a plug (15) meant for confinement of contact lubrication (14) in cavity (9). Plug (15) has transverse membrane (16) designed with possibility of its destruction by electric cable (22) when it is being inserted in cavity (9). Plug (15) is at least one section located inside section (5) of crimping. Contact lubrication (14) is located between bottom part (12) of cavity (9) and membrane (16). Connection method includes a stage at which transverse membrane (16) is destroyed by end of electric cable (22) when it is being inserted in cavity (9).
EFFECT: improving airtightness of electrical connection after its crimping.
16 cl, 11 dwg
The technical field
The present invention relates to the field of electrical connections.
More specifically, the present invention relates to a tip of the wire used for electrical connections.
It is known that there are tips containing the coupling, provided with a plot of compression associated with the site of connection terminals, for interoperability, which is the proposed tip.
In particular, from patent document FR 2620579 known tip, the coupling of which, containing the cavity, is placed the end of the electrical cable, and the cavity is partially filled with contact grease designed to improve the electrical connection of the handpiece with an electric cable. This tip further comprises an annular sealing gasket sealing, to ensure the tightness of the connection of the handpiece with cable.
In the process of insertion of the cable into the cavity, the cable is immersed in the contact lubricant, after which the operator carries out compression of the tip.
A brief statement of the substance of the invention
The task of the invention is to improve the handpiece of this type from the point of view of its method of preparation, and from the point of view of its use.
the La solve this technical problem the present invention proposes a tip for electric connection, containing a coupler having a cavity partially filled with contact grease, designed for insertion of the end of the electric cable and contains a plot of compression, made with the possibility of radial deformation, characterized in that the handpiece further comprises a stopper for retaining the contact of the lubricant in the cavity, and this tube has a transverse membrane made with the possibility of its destruction by the end of the electrical cable during its insertion in the cavity, and the tube has at least one site located within the area of compression, with contact grease is located between the bottom part of the cavity and the membrane.
Thus, tube, ensuring the retention of the contact lubricant in the cavity before attaching the cable remains in place when the cable is inserted, and the membrane is simply torn by the end of the cable so that there was no need to remove this tube, which provides the operator with the gain in time. This tube is located in the zone of the coupling, which is subjected to compression, so that, being sandwiched between the cable and the walls objetos clutch, this tube could contribute to the sealing of the connection (i.e. the connection between the lug and the cable).
In accordance with the characteristics of particularly simple udobnoe implementation of a manufacturing process, and process of use:
the cavity has a tubular shape; and/or
the cap has a tubular section, and the thickness of the membrane is smaller than the thickness of the tubular section; and/or
the tube has a first end located opposite the bottom portion, and a second end located at the level of the hole, which is made in the cavity opposite with respect to the bottom part; and/or
the membrane is located from the first end; or
- membrane side of the second end; or
the membrane is located in an intermediate position between the first end and the second end; and/or
the tube contains an annular ledge located outside the cavity and opposite the free end of the coupling; and/or
the tube is made of silicone; and/or
the tip is made of aluminum; and/or
- contact lubricant contains oil and zinc balls; and/or
the handpiece further comprises a flat plot associated with the clutch and flat plot contains a through hole to accommodate the rod terminals, for interoperability, which made this tip; and/or
the coupling includes, between its bottom part and parcel of compression, the second section compression, made with the possibility of radial deformation and to accommodate the end of the electric cable.
In accordance with the characteristics of particularly simple and convenient implementation as the process of making and process of using:
the method additionally includes the stage at which compresses the plot of compression, at least on the level section of the tube, which is located on the site of compression;
in the process stage compression compresses the plot of compression at the level of the tube; and/or
since the coupling includes, between its bottom part and parcel of compression of the second section of the compression, this method additionally includes the stage at which compresses the second section of the compression, and this step takes place before the execution stage of the compression section of the compression.
Brief description of drawings
The invention is further explained in the description of the preferred variants of the embodiment with reference to the accompanying drawings, in which:
Figure 1 depicts a view in section of a handpiece in accordance with the invention and to the blanching, prepared to be inserted into the handpiece;
Figure 2 is a view in section of the tube illustrated in figure 1;
Figure 3 is a view in section, where the cable partially inserted into the tube until its membrane, is subject to destruction;
4 is a view, in section, where the cable is fully inserted into the cavity of the handpiece;
5 is a view, in section, where the tip is compressed at the level of the end of the cable;
6 is a view, in section, where the tip is compressed at the level of the tube;
7 is a General view of the handpiece and cable, shown in Fig.6, with a partial tear-out tip;
Fig - General view, the tip of the cable;
Figures 9 and 10 species in the context of two variants of realization of the tube shown in figure 2, respectively with a membrane that is situated in some intermediate position, and with a membrane located on the side of the second tube end;
11 is a view in section of another variant of implementation of the tube of the handpiece in accordance with the invention, but without the circular protrusion at its free end with a membrane located at some intermediate position.
Description of the preferred embodiment variants of the invention
Tip 1, are given in the Appendix drawings, contains a clutch 2, connected by means of the transition section 3 flat plot 4 connections.
Nakonec the IR 1 is made of aluminum.
The clutch 2 generally has a tubular shape and includes a first cylindrical segment 5 seal, which forms the first section of compression, as well as a cylindrical segment 6 accession, which forms the second section of the compression.
Flat plot 4 has a surface area of contact, and has generally the shape of a parallelepiped with a free end in the form of a flattened circular arc. This flat plot is near the free end hole 7 is made with the possibility of inserting in it a threaded rod (not shown)belonging to the connecting terminal supplied with, for example, the supporting flange. The mounting flange is configured to accommodate the bottom surface of the flat section 4. To ensure electrical contact between the terminal and the tip 1, this flat plot 4 is clamped between the support flange and a nut screwed on the threaded rod.
Now will be described in more detail handpiece 1 in its position before compression.
The clutch 2 has a constant outer diameter along its entire length, whereas the transitional part 3 has a specific shape that allows you to connect a flat shape section 4 with the cylindrical segment 6 attach the clutch 2.
Segment 5 seal has a tubular wall, the inner diameter of which is what I unchanged throughout its length, while the period of 6 accession is tubular in continuation of the segment 5 sealing only part of its length. The remainder of the segment 6 (ranging from flat phase 4) is integral. In the area where the segment 6 is tubular, its inner diameter less than the inner diameter of the segment 5, so that the wall segment 6 was thicker than the wall of the segment 5 sealing. Beveled edge 8 forming an annular inclined surface in the direction of the segment 6, passes between segments 5 and 6 in order to connect these two sites with different internal diameters.
Thus, the clutch 2 has a cylindrical cavity 9, the first portion 10 which is held at the level of the segment 5 of the seal, and the second part 11 is held at the level of the segment 6 of the accession. The cavity 9 has a bottom portion 12 and the opening 13, the opposite of this bottom part 12.
The second portion 11 partially filled with contact grease 14 containing oil and zinc balls. Contact grease 14 allows you to break a film of aluminum oxide that forms on the surface of the wall of the cavity 9 in contact with air.
The cavity 9 and, more specifically, the hole 13, covered with made of silicone tube 15 (figure 2). In accordance with another way to implement this tube runs from the mater is Ala, non-silicone, representing the properties required from the point of view of providing sealing. The tube 15 is tubular and has an outer diameter corresponding to the inner diameter of the segment 5. The tube has at one of its ends 17 destructible membrane 16, which closes at the end 17 of the tube 15. At the other end 18, the opposite end 17 of the tube 15 has an annular ledge 20, passing in a plane parallel to the plane in which the membrane 16.
The tube 15 is placed in the handpiece 1 through the opening 13 so that the annular projection 20 located opposite the free end of the tubular wall segment 5. The membrane 16 is thus immersed inside of the first section 10 and the side surface of the tube 15 is in contact with the side surface portions of the path of the first section 10.
Contact grease 14 is placed inside the second cavity portion 11 located between a bottom part 12 and the membrane 16. In this position, the lubricant 14 is not able to flow from the cavity 9. While no foreign bodies can get into the cavity 9 and, in particular, in its second section 11.
The tube 15 has a double function: on the one hand, the retention pin lubrication and prevention of penetration of foreign bodies, and on the other hand, is the provision of g is rotiserie. Indeed, the sealant may be necessary when using these tips in order to avoid water penetration in the segment of the connection, which can lead to undesirable effects on the quality of the connection, as in the case of high humidity or the presence of water on the cable, this water can move along the cable in the capillary effect.
As for sealing, the very existence tube (located between the coupler and the cable and the contact between the lubricant and the external environment) is the first factor that contributes to sealing. Another factor is the material from which the tube is made, and the silicone is especially effective to promote the function of sealing. However, for the manufacture of tubes can be selected and other material.
Now with reference to Fig 1 and Fig. 3 through 6 will be described the process of insertion of the cable into the tip 1 and the compression of the tip.
Tip 1 made interoperable with made of aluminium cable 22, containing on their surface a coating in the form of the insulating layer 23. The end of the cable 22 is released from covering the insulating layer, i.e. does not contain an insulating layer 23 on the level of its end. The cable 22 is made of aluminum.
First, the bare end of the cable 22 is inserted into Palast the 9 through the opening in the tube until its membrane 16. Continuing the insert, destroy this membrane 16 under the action of pressure of the cable 22 (see figure 3). Then perform further insertion of the cable 22 forward until the point where the cable come into contact with contact grease 14, and then will face the bottom part 12 of the cavity 9 (see figure 4). In this position, the interaction of the tip 1 and the cable 22 and the exposed portion of the cable 22 extends beyond the tube 15. When this tube 15 is located just opposite the insulating layer 23 of the cable 22.
In contact with the lubricant layer 14 of aluminum oxide (not shown), which is formed on the surface of the exposed part of the cable 22 enters into chemical reactions.
As shown in figure 5, the line segment joining compresses in a known manner. The tubular wall section of the segment 6, corresponding to the cavity portion 11, is in contact with the bared end of the cable 22. Contact grease 14 in its predominant part is extruded in the direction of the first section 10 of the cavity, and a thin layer of this contact lubricant 14 may remain between the surface end of the cable 22 and the inner surface of the above-mentioned area of the segment 6.
Then provide compression of the segment 5 of the seal so that the side wall of the tube 15 was sandwiched between the side wall of the segment 5 of the seal and the cable 22 and, more specifically, to whom she was pressed against the insulating layer 23 of the cable so to ensure a satisfactory degree of sealing. When this pin grease 14 is the remaining free space between the cable 22 or the insulating layer 23, the tube 15, the beveled edge 8 and the side surface of the second cavity portion 11. The amount of contact lubricant located in the cavity 9, is chosen so that it matches the free volume of the cavity 9 after insertion of the cable 22 and the implementation of compression.
In accordance with the options of implementation tube it is desirable that the pieces of the membrane after its destruction remained localized at the level of the tube so that they were located before the first end. Tube 115 presented on Fig.9, contains the membrane 116, located at some intermediate position approximately half the distance between the ends 117 and 118, while the membrane tube 216 215 is located on the second end 218.
In accordance with a variant implementation of the presented figure 11, the stopper 315 does not contain annular ledge.
In accordance with a variant of this method implementation tube is shorter than the tube, presented on other drawings.
In accordance with the variants of the method of implementation tube made of a material other than silicone, and/or the material from which made the cable and n is konecnik, represents other material suitable for the implementation of compounds of this type, and/or contact the lubricant does not contain zinc balls.
In accordance with another alternative implementation, the membrane has a shape that is not flat, for example, concave in the direction of insertion of the cable into the cavity.
In accordance with another method of implementation, not are given in Appendix figures, the area of contact surface has a different shape, for example a tubular shape.
Can be considered also other embodiments of the tip, is not beyond the scope of the invention. In particular, the area of connection may be adapted to be used in this case, the terminal, or the outer shape of the tip and, in particular, the zone of compression, can present a different profile.
1. Tip for electrical connection containing a coupler having a cavity (9), partially filled with contact grease, designed to accommodate the end of an electric cable (22) and contains plot (5) compression, made with the possibility of radial deformation, wherein the handpiece further comprises a stopper (15, 115, 215, 315) for holding contact lubricant (14) inside the cavity (9), which has a cross membrane(16, 116, 216, 316), made with the ruin is of an electric cable (22) the process of its insertion in the cavity (9), the tube represents at least one site located within the area (5) compression, with contact grease (14) is located between the bottom part (12) of the cavity (9) and membrane(16, 116, 216, 316).
2. The handpiece according to claim 1, characterized in that the cavity (9) has a tubular shape.
3. The handpiece according to claim 2, characterized in that the tube (15, 115, 215, 315) has a tubular section, and the thickness of the membrane (16, 116, 216, 316) is less than the thickness of the tubular section.
4. The handpiece according to any one of claims 1 to 3, characterized in that the tube (15, 115, 215, 315) has a first end(17, 117, 217, 317), situated opposite its bottom part (12), and the second end(18, 118, 218, 318), located at the level of the holes (13)made in the cavity (9) opposite the bottom (12).
5. The handpiece according to claim 4, characterized in that the membrane (16) is located from the first end (17) of the tube.
6. The handpiece according to claim 4, characterized in that the membrane (216) is located on the side of the second end (218) of the tube.
7. The handpiece according to claim 4, characterized in that the membrane (116, 316) is located in an intermediate position between the first end (117, 317) and second end (118, 318).
8. The handpiece according to any one of claim 2 and 3, characterized in that the tube (15, 115, 215) contains an annular protrusion (20, 120, 220), located at the end of the cavity (9) opposite the free end of the coupling (2).
9. The handpiece according to any one of claims 1 to 3, the tives such as those the tube is made of silicone.
10. The handpiece according to any one of claims 1 to 3, characterized in that the tip is made of aluminum.
11. The handpiece according to any one of claims 1 to 3, characterized in that the contact lubricant (14) contains oil and zinc balls.
12. The handpiece according to any one of claims 1 to 3, characterized in that it further comprises a flat section (4)associated with the clutch (2), and flat section (4) contains the penetration hole (7) to accommodate the stem of the contact terminals to interact with which is the tip.
13. The handpiece according to any one of claims 1 to 3, characterized in that the coupling (2) contains between a bottom part (12) and section (5) of the second compression area (6) compression, made with the possibility of radial deformation and receiving end of an electric cable (22).
14. The method of attaching a tip for electric connection to the power cable, characterized in that the method comprises the steps that prepare the handpiece according to any one of claims 1 to 13, prepare electric cable (22), the end of which is made with the possibility of inserting into the cavity (9), destroy cross the membrane(16, 116, 216, 316), which contains the tube(15, 115, 215, 315), by the end of the electric cable (22) during its insertion in said cavity (9).
15. The method according to 14, wherein the l is further compresses the plot (5) compression, at least at the level of plot tube(15, 115, 215, 315), which is located within the area (5) compression.
16. The method according to item 15, wherein the coupling (2) contains between a bottom part (12) and section (5) of the second compression section compresses, the method additionally includes the stage at which compresses the second section (6) compression, and this step is carried out before the execution stage of the compression section (5) compression.
FIELD: electrical engineering.
SUBSTANCE: proposed assembly, for example for intermediate or high voltage cable, comprise first connector with at least one tip for connection to second connector adapted for connection with said cable and engagement with first connector for a proper electrical contact there between. Further, tubular connector assembly comprises shrinking coupling with 1st and 2nd parts. 1st tubular part of said coupling is locked around aforesaid first connector. 2nd tubular part can extend beyond at least one first connector tip to envelop connected second connector and cable connected thereto, when second connector is connected to at least one tip of first connector.
EFFECT: higher reliability of cable connection.
15 cl, 23 dwg
FIELD: power engineering; repairing aluminum and steel-core aluminum conductors of overhead power transmission lines.
SUBSTANCE: proposed clamp is made in the form of two similar semi-tubes of specific trough-shaped section. Each semi-tube is provided with slot on one end and mating ridge on other end; slots and ridges may be of various shapes from polyhedron to oval. During clamp assembly ridge of one semi-tube enters slot of other semi-tube, and vice versa, ridge of other semi-tube enters slot of first one. In such condition semi-tubes are compressed together with conductor being repaired by means of hexahedral or round dies on overhead power transmission line. Ratio of clamp semi-tube sectional area to maximal cross-sectional area of conductors being installed will range between 1.4 and 1.8. New repair clamp affords reduction in metal consumption by approximately 1.65 to 2.45 times.
EFFECT: facilitated procedure, reduced metal input.
5 cl, 2 dwg, 1 tbl
SUBSTANCE: device is vertically fixed to a compressor or a pump for pumping of a condensate gas and/or liquid or to an inlet/outlet of a transformer. The device comprises an input unit to supply power through it to a compressor or a pump electric motor or to an inlet/outlet of a transformer; a funnel-shaped body with a body chamber, besides, the input unit is installed on the upper end of the chamber; a grid arranged across the longitudinal axis of the chamber, besides, the input unit is arranged above the grid, a filter arranged in a chamber under the grid and above the input hole into the electric motor body or the input/output hole of the transformer body, and also a metering unit passing inside the chamber from the input unit in direction towards the grid, but arranged at a certain distance from the grid.
EFFECT: higher stability of functioning, durability of a compressor or a pump and its electric motor.
34 cl, 10 dwg
SUBSTANCE: electric connector consists of a plug receptacle (1) with male contacts positioned (31) within its cavity and movable plug head (2) with female contacts (32) for electric conductors ends connection (25, 26). For fixation of the plug head in the plug receptacle with form closure a shape lock ring is applied that is fitted, with part of its cross section, into the plug head groove passing along the perimeter; during the electric connector locking the ring engages, with the rest of its cross section, into the groove arranged on the inner side surface of the plug receptacle. The shape of the lock ring and the grooves as well as the lock ring material are such that the plug head (2) is taken out of the plug receptacle (1) only by a pull force in excess of a certain threshold value. The plug head (2), connected in the same way, is fixed with its end in the congruent end of the plug movable body (3) with form closure ensured by the fixture ring (4). The force enabling the plug head taking out of the plug receptacle is less than the force retaining the plug head in the plug body with fixture ring connection.
EFFECT: detachable plug performing its function without damage to the plug.
4 cl, 2 dwg
SUBSTANCE: in the demountable vacuum electrical connector the first and the third splits, mounted on a board with current-conducting paths, form an extension board rigidly installed on stands inside the flange. A groove is formed on the whole perimetre of the first hollow inside the flange, along the lower ridge of the side wall. The inner hollow of the flange with the extension board, above the level of recesses in the first split electric contacts is filled with a sealant. On the third body of the third split a cover is placed attached on the stands and the flange. Lobes with holes are arranged on the flange outside, on its sides. A pad for the tightening element fixation is envisaged on the flange surface around the first split. The connector counterpart is made on the plate of the appliance being sealed and includes a depression for the tightening element, mounting holes for the flange and the second split installed in the depression.
EFFECT: expanded field and enhanced efficiency of usage of unsealed standard multipin splits based on application of a demountable vacuum electric connector for physical appliances sealing.
8 cl, 6 dwg
SUBSTANCE: subject of this invention is an electric connection slot comprising a plug (10), equipped with primary contacts (20), and a base (12), equipped with secondary contacts (24), made as capable of interaction with the primary contacts. The connection slot additionally comprises a valve (30), fixed on the base and arranged as capable of rotation between the closed position, in which it closes access to secondary contacts (24), and the open position, in which it opens access to the secondary contacts to provide for connection of the plug with the base, and a circular coupling (40), fixed on an electric cable (14), connected to the plug (10), and made as capable of movement between two extreme positions: the lower position, in which it closes the valve (30), when the plug and the base are connected, and the upper position, in which it opens access to the plug.
EFFECT: increased reliability and service life, due to prevention of ingress of contaminating foreign matters, such as liquids or dust, into the slot base.
9 cl, 9 dwg
FIELD: electrical engineering.
SUBSTANCE: invention refers to the connecting nodes for connection of electric power cable (1) to the submarine pipeline (8) and/or disconnecting from it, in particular, for direct electric heating. Connective node contains envelope conical member (6) connected to the connective plate (2) on the surface of pipeline (8), reverse enveloped conical member (5) fixed on the end of power cable (1) and screw tightening device (70) for contact between envelope conical member (6) and enveloped conical member (5). Tightening device (70) includes first rod element (7) mage with possibility of entering the first socket (16) of envelope conical element (6) having the hole directed against the direction of the cone (12) of envelope conical element (6) and serving for location of first rod element (7) with first rod element (7) having tightening screw (7a), inner end (7c) of which is manufactured with possibility of contact with enveloped conical element (5) and outer end (7b) is available for connection and disconnection operations.
EFFECT: quick and safe connection of the cable to the pipeline and/or its disconnection.
11 cl, 2 dwg
FIELD: electrical engineering.
SUBSTANCE: connector assembly for connection of first and second conductors comprise base with section to accommodate first and second insert terminals and flap cap pivoted to case to cover said section. Cap has main part, section retaining conductors, and retainer. Section retaining conductors incorporates first and second conductor holders each intended for retaining and leveling relevant conductor relative to aforesaid base required for connecting electric conductor to retaining section of relevant insert terminal in closing proposed cap. Conductor holder clamping force is lower than that of insert terminal. Retainer allows securing cap to case with cap on closed position. In changing said in open position, first and second conductors are retained by first and second insert terminals on being released from first and second holders.
EFFECT: ease of use and proper connection.
15 cl, 26 dwg
SUBSTANCE: submerged electric connector consists of coaxial socket and plug. Connector consists of coaxial socket and plug. Current-carrying thin-wall cylinders of connector are made in the form of shells entering each other, into the bottom of which central pins electrically connected to bottom are mounted. Inductance coils are arranged inside shells between cylinders and central pins on ferrite rings and connected to source and receiver of signal. When in closed position, both halves of connector represent short-circuited turn through which transformer connection between inductance coils of instrument and diving parts is performed.
EFFECT: increasing efficiency coefficient of connector and providing the possibility of using the connector in multiple-channel devices of transfer of electric energy from full electric isolation between channels at their close location irrespective of the fact whether halves of connectors are open or closed.
FIELD: radio engineering.
SUBSTANCE: device with housing (1), in which there installed is at least one contact pin (3), differs by the fact that pin (3) includes the section covered with sleeve (6) containing circular cylindrical outer surface; at that, sleeve is tightly attached to the pin and located in seat (20) of the housing, which is restricted with circular cylindrical wall (26). At that, sealing gasket (30) is installed between outer surface of sleeve and the wall restricting the seat.
EFFECT: improving tightness of connection between contact pins and housing.
8 cl, 5 dwg
SUBSTANCE: explosion-proof plug-and-socket (1) comprises plug (2) and socket (3). Plug (2) comprises case (4) with at least two pins (6) arranged in plug insert (5), and socket (3) comprises case (7) with response sockets (9) arranged in socket insert (8). One of cases (4, 7) is equipped with external bush (10), which may be detachably joined to other case (7, 4). To provide for protection of "d" type, fire-resistant shell, and protection of type "e", higher safety, even prior to engagement of pins (6) into electric contact with sockets (9), between external bush (10) and other case (7, 4), the first clearance (11) is formed, and between external bush (10) and appropriate insert (4, 8) there is the second gap (12).
EFFECT: improved convenience of plug-and-socket handling, especially when disconnecting plug from socket, with preservation of its explosion-proof property.
17 cl, 2 dwg
SUBSTANCE: method may involve wearing (202) high-temperature plastic (122) around multiple connector pins (112) to form a base part (120), wearing (204) low-temperature plastic (132) around the base part to form an insertion (130), wearing (206) side pieces (142) of the connector along the perimetre of the insertion to form an interface node (140), and welding (212) the insertion to the housing (151) for movement (153) of the low-temperature plastic into the housing using ultrasound.
EFFECT: provision for interface connections with high degree of wholeness.
14 cl, 11 dwg
FIELD: plug connectors for cables of subsurface workings of mines.
SUBSTANCE: proposed cable-terminating plug forms hollow plug socket of brass whose hollow section on cable end forms cable entry hole and has supporting collar that functions to support male connecting member projection in axial direction. Cable entry hole is provided with inner thread for turning in metal tetrahedron that has through hole for cable entry. Cable screen or armor can be placed between through hole and cable sheath to ensure adequate grounding of cable and cable plug. Inner space of plug socket is sealed by means of shaped part molded on cable sheath, on plug socket, and on polyhedron. Shaped part is also used for securing cable in axial direction on plug socket.
EFFECT: ability of long-time service in damp media due to reliable sealing attained by simple means.
13 cl, 3 dwg
FIELD: cable jointing devices.
SUBSTANCE: cable jointing box provided with through duct to receive respective cable end mounts cup-shaped electric contact whose edge forms hold-down ring tightly enclosing reduced-diameter box section. Naked conducting member is placed between electric contact and box section. Hold-down ring is squeezed to tighten up joint between duct wall and cable sheath. Tightening sleeve is capable of holding two boxes, each being connected to cable through respective electric contacts. Sleeve provides for tight joint between interrelated cable parts in region bounded by sleeve and boxes.
EFFECT: enhanced quality of wire-to-cable joint.
8 cl, 10 dwg
FIELD: electrical engineering; drilling and servicing inclined and horizontal oil-gas wells.
SUBSTANCE: proposed cable connector specially designed to prevent ingress of conducting medium (drilling mud) into its interior thereby ensuring reliable insulation of contacts from environment and preventing electric current leakage (leakage resistance being minimum 50 - 100 Megohms), or poor contact between connector mating parts has pin section and jack section with contact members inside them, as well as membrane. Jack section is made in the form of cylindrical shroud with stepped inner space accommodating contacts made in the form of flexible split rings secured on flexible cross-arms, flexible membrane disposed at pin section joint, and spring-loaded sealing ring mounted within shroud for displacement. Inner space of jack section is filled with insulating liquid. Cylindrical pin section has conical end; diameter of pin cylindrical part is larger than inner diameter of sealing ring.
EFFECT: enhanced tightness and reliability of contact between mating parts of connector.
1 cl, 4 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed junction module has independent connecting member inserted in jacks which are connected to modular members incorporated in operating and protective equipment of transformer substations and power distribution systems. Each connecting member has external flexible shroud accommodating conducting ring wherein plurality of conducting parts are installed and passed through ring channels. Mentioned conducting parts are assembled in bundle for its axial displacement and turning in ring which makes it possible to wire and connect them to respective contact leads provided in jacks and related to each of adjacent members.
EFFECT: eliminated leakage of protective gas during junction due to reliable sealing and insulation of joint.
6 cl, 7 dwg
FIELD: electrical engineering; electrical connections to supply power to submersible pump motor for extracting stratum liquid.
SUBSTANCE: proposed cable extension-cord box of submersible motor cable line that suffers in operation high hydrostatic pressure and temperature has box proper accommodating cable fixed in position by means of fastening member; cable has conductors and terminal block provided with holes to receive cable lugs and conductors connected to them; at least one of joints between cable conductors and lugs is disposed in terminal block hole at distance L ≥ 0.5 d, where d is cable conductor diameter, from butt-end surface of block disposed closer to supporting member additionally installed in cable box and provided with holes to receive cable conductors.
EFFECT: enhanced reliability and service life, enlarged functional capabilities of device.
20 cl, 8 dwg, 1 tbl
FIELD: devices for formation of electrical connections in vehicles; the repair kit is designated for repair of a failed electrical device of a vehicle connected to the vehicle electrical equipment system by several wires.
SUBSTANCE: the repair kit has a new electrical device installed instead of the failed one, several wires connected to the new electrical device and a built-up protective box designated for protection of the electrical connection made by joining of the wires of the new electrical device and the wires of the vehicle electrical equipment system. The built-up protective box has a body with several holes insulated from one another. The packing rings positioned in each hole of the body intended for arrangement of the new electrical device section of the connected respective wire of the vehicle electrical equipment system and the respective new electrical device form in fact a waterproof packing around the section of the wires connected to one another by joining. The protective built-up box has also a cover joined to the body. The claimed repair kit is preferably designated for replacement of the sensor of the content of oxygen in exhausted gases failed on the vehicle.
EFFECT: simplified aftersale servicing of the vehicle.
9 cl, 8 dwg
FIELD: electric engineering, possible use during drilling and operation of slanting and horizontal oil-gas wells.
SUBSTANCE: cable socket for operation in conductive environment consists of rod and socket parts with holding assembly. Holding assembly is positioned in rod part of socket and includes spring-loaded bushing, internal diameter of which is greater than external diameter of socket part body, and holding elements, held together by resilient ring and in casing, which is pressed by spring to internal shelf of rod part body. Rod part additionally contains rotary cutoff plate and lever connected thereto, pinned on an axis.
EFFECT: reliable holding of cable socket, and also reliable connection of rod and socket parts at low force, applied to cable with socket held on its end, while disconnection occurs at distance 200-500 meters from force application point.