Device to mount switch on mounting panel

FIELD: electricity.

SUBSTANCE: invention relates to a device to mount switch (1) on mounting panel (2) containing a front side, a rear side, as well as a mounting hole. Switch (1) includes housing (6) having upper side (7) of the housing and at least one fastening ledge (8) designed to be inserted into mounting hole (5) from the rear side of the mounting panel. Besides, there are there are both means for fastening ledge (8) to rest on front side (3) of the mounting panel and opposite support elements for the upper side of the housing to rest on rear side (4) of the mounting panel. According to the invention opposite support elements are formed by springs (10).

EFFECT: invention provides the possibility of compensating various thicknesses of mounting panels during mounting.

12 cl, 11 dwg



Same patents:

FIELD: electricity.

SUBSTANCE: invention refers to electric engineering and may be used in electric cabinets. The blank for a drawer (10) of an electric cabinet comprises a part (1) of the basic plate, the first bent off part (2) for a connector wall with the respective fold line (3) passing in the first direction, and the second and third bent off parts (4, 6) for side walls with the respective fold lines (5, 7) passing in the second direction perpendicular to the first one. The part (1) of the basic plate comprises side sliding parts (8, 9), which pass outside the respective fold lines (5, 7) of the second and third bent off parts (4, 6).

EFFECT: simplified fabrication and increased cost efficiency.

13 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering. A vertical electrical connector is intended to supply horizontal rows of electrical devices in a switchboard and contains a row (100) of vertical conductive bars (110, 120, 130, 140) parallel to the longitudinal axis (X) and having the central plane (P). Each conductive bar is made as a thin and prolonged metal plate (115, 125, 135, 145) containing two opposite main sides placed in parallel to each other and perpendicular to the central plane (P) of this row (100). Two lateral conductive bars (110, 140) are placed at the ends of this row and each one contains at least one electrical connector (111, 121A, 121B, 131A, 131B, 141A, 141B) for the electrical connection of the above electrical devices to the electrical network. All electrical connectors of the conductive bars in the row are placed in the space lying between the above lateral conductive bars. The device contains at least one connecting block (150A, 150B, 160), which contains electrical connectors (121A, 131A, 141A, 131B, 131B, 141B, 111) placed in line close to each other in the transversal direction (Y) perpendicular to the longitudinal axis (X) in the central plane (P) of the row (100).

EFFECT: simplified connection.

14 cl, 15 dwg

Computer unit // 2554089

FIELD: physics, computer engineering.

SUBSTANCE: invention can be used in a railway automation system equipment having high requirements for moisture and dust protection. The computer unit includes functional cells in the form of printed-circuit boards with electronic components mounted on guides and connected by electrical connectors at their ends with a motherboard and protected by a casing. The casing consists of side walls, front and rear frames which form a chassis, to which a cover, a base and front and rear panels are mounted. On the inner side of the side walls there are stiffening ribs, along the upper edges of which there are grooves; at the ends there are openings for mounting the front and rear frames, and their sides adjoin protrusions to which rails are mounted, and guides are mounted perpendicularly. Around the inner periphery of the front and rear frames there are mating surfaces, on the outer side of which there are grooves under elastic spacers, on the corners of the opening for mounting side walls to the stiffening ribs, and on the inner side along the upper and lower edges there are horizontal protrusions which form grooves which, when assembling the chassis, form a closed loop of grooves on its upper and lower surfaces under elastic spacers. The functional cells are inserted into the chassis and are attached by one end to the mating surface of the front frame, and by the other end to the motherboard, which is mounted across the chassis and is mounted to the rear rails. Functional cells with high heat dissipation are fitted with heatsinks. The front panel has radiators and functional cells with heatsinks are mounted under the radiators. On the inner side of the front panel around openings for connectors there are grooves for elastic spacers.

EFFECT: high reliability of protecting the unit from electromagnetic radiation, external vibrations, moisture and dust penetration and providing effective heat removal from electronic components with high heat dissipation.

3 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention relates to dielectric insulating medium containing hydrofluor monoether, which has, at least, three carbon atoms and has a boiling point below 55C. The invention also relates to the use of the named hydrofluor monoether in a dielectric insulating medium for an electric device (2) for generation, distribution and/or use of electric energy; and also to the use of the dielectric insulating medium for dielectric isolation in the electric device (2) for generation, distribution and/or use of electric energy. The invention also describes the device (2) for generation, distribution and/or use of electric energy, and the named device (2) comprises the housing (4) forming the isolating space (6), and an electrically active part (8) located in the isolating space (6), and the named isolating space (6) comprises the insulating medium, and it is a dielectric insulating medium. The insulating medium according to this invention has high insulating properties, in particular high dielectric durability and at the same time - low PGP.

EFFECT: invention allows to create the insulating medium which is chemically and thermally steady to the temperatures above 140C which is non-toxic or has low level of toxicity and which is also non-corrosive and non-explosive.

72 cl, 3 dwg

Switchgear cabinet // 2548370

FIELD: electricity.

SUBSTANCE: invention relates to electrical equipment and can be used in cabinets for low-voltage switchgears for voltages up to 500 V and electric current up to 63 A. The switchgear cabinet is designed as a wall housing for suspension or embedding or as a vertical cabinet designed with a back wall and related parts (12, 14) of sidewalls, and also, if necessary, at least, one moving front door. The cabinet is fitted with embedded in elements for connection of the switching devices placed in the switchgear cabinet. Sidewall parts (12, 14) of, and also of the back wall are designed modular and rigidly connected to each other. As glue connection of sidewall parts (12, 14), and also of the back wall and/or connection of hinges or grooves of at least one moving front door with the respective sidewall parts (12, 14) the high-resistant adhesive tape is used; as a bearing material (26) the foam material with closed cells coated on both sides with the acrylic gluing material is used.

EFFECT: simplification of fabrication and operation.

11 cl, 3 dwg

FIELD: machine building.

SUBSTANCE: framework is basis of structure of the automatic monitoring and diagnostic systems (AMDS), is contains four vertical supports rigidly secured on base and in top cover of the framework. Guides are secured to side framework poles, in them the sliding trays are installed with possibility of rigid securing. On trays AMDS functional units are installed with rigid securing to trays. The guides and trays are arranged through height with different distances depending on height of the installed units. Flat side panels are secured outside to the side poles. By the side poles on one side of the framework AMDS cabinet is secured to the wall of the process space. AMDS rack is secured to floor and wall of the process space using the shock-absorbers. AMDS functional units have build-in cooling devices. On the additional slide trays of AMDS main option the following is installed: monitored object connected to hardware channels of the test actions, and to hardware measuring parameters of the response signals of the monitored object, and keyboard of AMDS control PC. Option of AMDS design provides for installation of the face and rare doors, that in work position are opened and turned along wall of the process space.

EFFECT: reduced loading of air conditioning devices of the process space of the repair-testing workshops, reduced impact and vibration loads on cabinet REE, especially during AMDS transportation as part of mobile repair-testing facilities.

10 cl, 10 dwg

FIELD: electricity.

SUBSTANCE: portable surface ground device is coupled to a power supply source of a mobile electrical installation and is comprised of a ground tank with a contact bolt and a load placed in its centre. The ground device has heating ground electrodes of a coaxial structure, which outer shells are insulated by a layer of heat- and moisture-proof varnish; the electrodes are placed in a case sealed with a heat insulated polyurethane coating and protected with a glass-reinforced plastic jacket. The case is equipped with a heat concentrator and a resistance sensor connected to an electronic stabiliser of current-spreading resistance.

EFFECT: reduction and stabilisation of current-spreading resistance and provision of the reliable and safe operation of equipment and maintenance personnel in the winter period in conditions of extremely low temperature and perpetually frozen soils.

1 dwg

FIELD: heating.

SUBSTANCE: invention relates to systems for heat removal from computer equipment mounted inside server or mounting cabinets, and namely to a condensation cabinet. The condensation cabinet consisting of a protective casing; two and more injectors serving for spraying of a mixture into an inner cavity of the cabinet; highly heat-conducting plates with installed heat releasing equipment; thermoelectric batteries (TEB); heat bridges; a pin fin heat sink; a fan unit; a control unit (CU); a condensate flowing-down chute; a pump serving for the supply of condensate to injectors, and a temperature sensor involves an evaporation and condensation cooling principle. Liquid is injected through the injectors located on the cabinet ceiling into the inner cavity of the cabinet; after it is deposited on heat releasing elements, it is evaporated, and therefore, the heat releasing elements are cooled down. Liquid vapours are condensed on the ceiling (upper part of the cabinet) that is technically made with an inclination to a rear wall of the cabinet for directed condensate flowing-down. In order to strengthen condensation properties of the evaporated liquid, TEB having a close contact of cold junctions to the upper cover plate of the cabinet are used, and the mounted pin fin heat sink that is also in close contact to TEB junctions, but already on the hot side, performs the heat pick-up. The heat bridges are located between TEB (they alternate in a staggered order with TEB) and serve for cooling of the upper surface of the cover plate by means of the pin fin heat sink and the fan units without any activation of TEB to save electric energy. The fan unit consisting of four fans is controlled by the control unit (CU) that gives a possibility of their pair activation for the purpose of electric energy saving by blowing over a radiator. TEB is fed through CU. A condensed mixture on the upper cover plate flows down through the rear wall and penetrates onto a special chute located throughout the length of the rear wall. From there, it is supplied via the liquid channel to CU, in which a pump is installed. The mixture is supplied back to the injectors through the liquid channels under the action of the pump.

EFFECT: providing efficient heat removal from the cabinet volume.

1 dwg

FIELD: electricity.

SUBSTANCE: invention is related to electric engineering, to electric switchboard and/or distribution cabinets (10) with envisaged panels for metering and distribution. The cabinet comprises mounting frames (18) for fixation of electrical and/or electronic components such as electricity meters and automatic circuit-breakers. The mounting frames (18) are made as C-shaped sections or U-shaped sections. The cabinet comprises a rail (12) connected to at least one receiver (14, 16) for receipt of the mounting frames (18) different in configuration, shape and dimensions. The rail (12) is fixed rigidly at predefined positions to the respective wall (20) of the cabinet (10). The respective receiver (14, 16) is designed to fix the rail (12) locally.

EFFECT: reduction of costs at equipment mounting due to reinstallation of the receiving element in the cabinet.

13 cl, 9 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering, bus bars adapters with bearing bus for fastening the switching device on them. The bearing bus is designed with a possibility of fastening on the bus bar adapter in various positions and has legs. The bus bar adapter has clearance holes, through which respectively one of legs of the bearing bus with latch protrudes from the first limiting surface of clearance holes, to which the bearing bus adjoins, to the second limiting surface of clearance holes so far, that the respective latch of the leg with retaining surface is located at a distance from the second limiting surface, which corresponds to the size of the gate, which slides with geometrical closure between the retaining surface of the latch and the second limiting surface.

EFFECT: simplification of fixing at the expense of avoidance of use of accessories.

9 cl, 4 dwg

FIELD: power distribution systems.

SUBSTANCE: proposed power distribution system has vertically mounted indoor bus arrangement 14 and removable instrument units 10 that can be brought in contact with indoor bus arrangement 4 by means of contact device 23. Removable instrument units mount instrument carrying panel 12 on their face end and also box-shaped case 14 with inner cavity accommodating contact device 23, as well as cables and lines for wiring removable instrument unit 10. Auxiliary tools 42 and supporting structure 47 for auxiliary unit of contact clamps 52 are used for extracting removable instrument unit 10 to disconnect it from indoor bus arrangement 4.

EFFECT: enhanced economic efficiency and reliability, facilitated manufacture and maintenance of system.

15 cl, 5 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed low-voltage switchgear has draw-out equipment module to receive switching, protective, and control devices. Housing of draw-out equipment module accommodates interlocking beam disposed across direction of displacement and provided with retaining beaks projecting on one side. Side flanges of compartment base mount positioning links engageable with retaining beaks for retaining draw-out equipment module in wiring, repair, and check-up positions. Interlocking beam is set to operating position by means of leverage controlled by actuating element disposed on front control panel. Closing auxiliary interrupting contact in repair position of draw-out equipment module sets the latter in check-up position. Interlocking beak functions to lock interlocking beam in the process thereby preventing draw-out of equipment module.

EFFECT: provision for setting equipment module to check-up position and for preventing its shift from this position; simplified design.

9 cl, 9 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed device 8 designed for connecting draw-out equipment module to fixed points of terminals for cables running farther on has flat insulating shroud 15 mounted under base of compartment 6 and provided with sections 19 to receive connecting conductors 17. Leads 20, 21 of connecting conductors 17 protruding from shroud 15 form terminal points in compartment of cable connections 11 for cables and parts of connector contacts engageable with draw-out equipment module. Device is characterized in simplified design also suited to star-delta connection circuits.

EFFECT: enlarged functional capabilities of device.

6 cl, 7 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed device 8 designed for connecting draw-out equipment module to fixed points of terminals for cables running farther on has flat insulating shroud 15 mounted under base of compartment 6 and provided with sections 19 to receive connecting conductors 17. Leads 20, 21 of connecting conductors 17 protruding from shroud 15 form terminal points in compartment of cable connections 11 for cables and parts of connector contacts engageable with draw-out equipment module. Device is characterized in simplified design also suited to star-delta connection circuits.

EFFECT: enlarged functional capabilities of device.

6 cl, 7 dwg

FIELD: multiple-cubicle switchgear.

SUBSTANCE: multiple-cubicle switchgear 1 has tandem-joined frameworks confined in side frames 5. System perforation in side frames 5 has alternately arranged large and small holes 6, 7, 13, 14 asymmetrically disposed with respect to depth axis 10 and height axis 11 according to their size. Each time when frameworks are being joined, smaller hole 7 opposes larger one 6. When holes 6 and 7 are being adjusted to self-tapping screws 12, adjacent frameworks can be joined with aid of screws and tools on one respective end only. Additional holes 13, 14 are used for installing wiring interconnecting adjacent switchgear cubicles.

EFFECT: facilitated procedure of joining frameworks to form multiple-cubicle switchgear.

4 cl, 5 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed switchgear cubicle incorporating equipment compartment accommodating plurality of power switches arranged one on top of other has junction compartment accessible from front end and disposed on one side close to equipment compartment. Junction compartment accommodates parallel buses with terminal strips for connecting plurality of cables. Inclined position of at least some buses facilitates cable connection. Easy access to junction compartment from its front end makes it possible to install switchgear cubicle directly in front of wall. Great number of cables can be connected in comparatively narrow junction compartment.

EFFECT: reduced size of cubicle, easy access to junction compartment for inspecting terminal strips.

7 cl, 2 dwg

FIELD: electrical engineering; roll-out devices for high-voltage switchgear and control gear and other apparatuses mounted in cabinets of various mechanical design forms.

SUBSTANCE: proposed switchgear and control gear cabinet that incorporates provision for rolling out switching apparatus beyond cabinet perimeter without using auxiliary means has cabinet proper with door that accommodates switching apparatus mounted on roll-out device. The latter has wheel-out rollers engageable with two channel bars secured in same plane to opposing walls of cabinet. Internal part of upper and lower shelves of guide channel bars of roll-out device are provided with slots. Intermediate guide strip is engageable with guide channel bar for displacement over slots on shelves of guide channel bar with aid of supporting rollers; disposed in pin-to-pin clearance of supporting rollers secured on pins to intermediate guide strip is supporting strip provided with two slots which is fastened to switching apparatus case and is designed for engaging supporting rollers of intermediate supporting strip.

EFFECT: reduced labor consumption and material expenses for maintenance and repairs of switching apparatuses.

3 cl, 7 dwg

FIELD: electrical engineering; distribution board mechanical design.

SUBSTANCE: proposed method for manufacturing distribution board wall includes production of metal plate with at least one hole; production of two panels of which at least one panel is made of insulating material, both forming inner surface of distribution board; insertion of metal plate between two panels; and fastening of these panels together through hole in metal plate. Wall manufactured in this way is characterized in high strength and reduced space requirement. It can be easily equipped with busbars.

EFFECT: facilitated assembly and reduced size.

9 cl, 4 dwg

FIELD: parts of switchgear cubicles and cabinets.

SUBSTANCE: proposed planar part 2 has vent hole to admit cooling air and is useful, in particular, for doors or walls of switchgear cubicles and cabinets. Part 2 has lintels 3, each forming one open slit 4, 5 in longitudinal direction. Deformation or, respectively, embossing is made so that ingress of foreign bodies measuring 1 mm and more is impossible.

EFFECT: facilitated manufacture and enhanced economic efficiency of material affording protection against ingress of foreign bodies.

7 cl, 4 dwg

FIELD: electrical engineering, applicable, in particular, in production of complete high-and low-voltage switch-gears.

SUBSTANCE: the switch-gear front panel has a door fastened on the frame of metal sections and made for installation of the signaling equipment on it, bed frame made of metal sections, the distance between the axes of the hinge-joints of the frame and the framework of the metal sections, and the door corresponds to the door dimensions in the plane of its turning.

EFFECT: enhanced adaptability to servicing of the electrical device due to the enhanced convenience of work with the device equipment.

11 cl, 5 dwg