Device for electric connection of panel and electric switchboard

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering, to electric switchboards. Connection device (20) provides for electric connection of panel (6) attached to electric switchboard (1) with electroconductive surface (14) of the same electric switchboard. It is fixed between wall (41) of panel (6) and electroconductive surface (14) and comprises body (21), having the first wall (25) resting against specified wall (41) of panel (6) and the second wall (26) opposite relative to the first wall (25), distanced from it and facing specified surface (14) of switchboard for provision of electric contact of this surface. Besides connection device comprises eye (22) fixed on body (21) and forming groove (23) for fixation on edge of specified panel (6). Eye (22) comprises facilities (24) for application of nicks on specified edge of panel (6).

EFFECT: simplified assembly/disassembly of electroconductive panel with body of switchboard.

10 cl, 5 dwg

 

The technical field to which the invention relates.

The present invention relates to an electrical distribution boards and, in particular, to a device for electrical connection of the panels, made of electrically conductive material, the electrical distribution Board.

The level of technology

It is known that the standard distribution switchboards consist of a rectangular box-like housing within which is housed an electric equipment. Normally, such a rectangular enclosure includes walls or parts of walls, which are formed using panels made of sheet metal.

In General, the panels are attached to the supporting frame of the box-shaped body, and often these panels are removable. Framing, for example, consists of a rectangular base, four racks of metal profiled sections attached to the bottom base, and the upper part of the uprights are attached to the top cover.

On the other hand, mainly in small-size distribution switchboards, panels, forming their walls, connected or reinforced directly with each other, thereby creating a box-shaped housing of the electrical panel without the use of racks. Usually the panels are attached to the housing switchboard, or simply to the distribution switchboard, with R lichnogo kind of fasteners, such as contact pins or screws, are able to enter into the holes of different shapes or indentations that are located on respective mounting plates or dies, which is connected to the housing of the distribution electrical panel.

Since these panels are made of electrically conductive material, in order to comply with the precautions and security requires constant electrical connection between the panels and the rest of the body switchboard. In the art such electrical connection is usually called "grounding". A known method for performing the connection panel switchboard is provided through the use of connecting wires, acting as bridges between the panel and the other conductive part of the enclosure distribution Board, which is shorted to ground. Usually the opposite ends of the wire are equipped with terminals that are attached with screws or the contact pins to the panel and the other conductive part of the enclosure distribution Board, respectively. These screws or contact pins are designed so that Scrabble lacquered surface of the panel to provide access to its conductive part.

Known techniques described above provide electric is soedineniya between the conductive pad and the distribution switchboard has the disadvantage that namely, that, for example, during installation or routine maintenance switchboard, first panel ground, and then the switchboard must be closed again by means of mechanical fastening panel to the distribution Board.

Disclosure of inventions

The aim of the present invention is to provide a device for electrical connection of the conductive panel housing distribution switchboard, which facilitates comparison with the above-described prototype operation of mounting/Dismounting the panel to/from the rest of the switchboard.

This goal is achieved by means of the coupling device in the most General variant of its implementation, as defined by the independent claim 1, as well as in some individual cases its implementation, as defined by the dependent claims.

Another objective of the present invention is the creation of a distribution switchboard, defined by the independent claim 10.

Brief description of drawings

The invention will be best understood by consideration of the subsequent detailed description of the variants of its implementation, not limiting the present invention, using the example shown in the attached drawings, where:

figure 1 - from the expression in ISO distribution switchboard;

figure 2 - image in ISO switchboard presented in figure 1, which removed some of its parts;

figure 3 - image in ISO preferred embodiments of the connecting device with some of its internal elements in accordance with the present invention;

figure 4 - image in ISO connection device presented on figure 3, panel distribution panel presented on Fig 1;

figure 5 - image in the isometric device presented in figure 3, in the process of its use when connecting the panel to the distribution switchboard presented in figure 1.

In the drawings, the same elements are denoted by the same numerals.

The implementation of the invention

Figure 1 shows in isometric power distribution Board 1. Basically, power distribution Board has a rectangular box-shaped housing made of several walls made of galvanized sheets. In figure 1 you can see the side wall 2, the upper cover 3 and the base 8.

A box-shaped housing distribution switchboard is closed in front of the front locking door 4, which in the illustrated example has a part, consisting of a sheet of glass 5. In addition, the switchboard 1 contains several panels 6, which is movable the m way attached to the other housing parts 2 and 3 of the distribution electrical panel 1. Preferably, the data panel 6 were also made of galvanized sheets, as well as other parts of the switchboard. In a specific example of the switchboard shown in figure 1, is protected from any external access to these panels through the front door 4, which can be opened using the appropriate wedge lock 7.

Figure 2 shows power distribution Board, depicted in figure 1, without components such as door 4 and three of the top panel 6. In this drawing, compared with figure 1 you can see the side wall 2 and the rear wall 9, the components of the enclosure distribution Board 1. On this drawing you can see the internal space 13, in which the electrical equipment is installed inside the enclosure 1.

The side walls 2 of the distribution electrical panel 1 have corresponding ribs 10 extending on one side on the front of the box-shaped housing, with each of them contains a number of grooves 11 for mounting the front frame 12 and the locking of the door 4, which are not visible in figure 2, as seen in figure 1, the enclosure distribution Board 1.

Covering the edges 10 of the side walls 2 switchboard bent, in turn, in the direction of the internal space 13, limited housing switchboard, thereby creating a securing strap 14, which has a mn is a number of vertically spaced holes 15, employees for fastening panels 6 to the housing switchboard, using, for example, fastening screws 16.

Figure 3 shows in isometric most preferred embodiment of the electric connecting device 20, which serves for the electrical connection panel 6 with box enclosure distribution Board 1. Preferably, the device 20 gave the opportunity to the electrical connection panel 6 with fixing strap 14 provides the mechanical fastening of the panel 6 to the housing distribution Board 1. Despite the fact that securing strap 14 switchboard figures 1 and 2 performed as a single unit with the side walls 2 switchboard, this limit may be set, for example, on a vertical rack, made of metal profiled section, which is part of the supporting frame of the switchboard.

Electrical connecting device 20, which is made of electrically conductive metal material, and preferably of stamped bent sheet metal, consists of a body 21, for the most part, having the form of a frame or "cage". The housing 21 comprises a top wall 25 which closely abuts the wall panel 6, as well as from the bottom wall 26, which is removed and is located opposite the top wall 25. N the life wall 26 abuts on the conductive part of the housing switchboard 1, preferably reinforcing bar 14. Preferably, two spaced walls 27 and 28 of the body 21 of the electrical connecting device 20 provided immobility of the upper wall 25 and bottom wall 26 and parallel to each other.

It is important that the housing 21 of the connecting device 20 was sandwiched between the panel 6 and a reinforcing strip 14 distribution Board 1, when the panel 6 is attached to the distribution Board 1. In particular, when the device 20 is trapped between the panel 6 and switchboard spaced walls 27 and 28 provide an opportunity to maintain a minimum distance between the top wall 25 and bottom wall 26 so that they rest against the panel 6 and a reinforcing bar 14 distribution Board 1, respectively.

Next, the connecting device 20 has protruding lug 22 which connects with the housing 21, preferably with its upper wall 25. The side of this lug protrudes relative to the housing 21 of the connecting device 20. Protruding eyelet 22, or an attached eyelet, preferably made of pieces of bent sheet metal, which has a wall, facing each other and connected so that they form a groove 23, which is inserted portion of the edge panel 6 with the purpose of providing electrical connection to distribution power panel 1. Practical the ski protruding lug 22 has a generally U-shaped profile and can be installed, covering a portion of the edge panel 6 thus, to attach the connecting device 20 to the panel 6.

Preferably, protruding lug 22 and the body 21 of the electrical connecting device 20 was connected by die-cutting and bending a single metal sheet.

Protruding eyelet 22 contains one or more scraping elements such as teeth, which consist of sharp tips or edges facing the inner side of the groove 23. Preferably, these scraping elements have been directed towards the bottom of the groove 23. Scraping elements 24 are of such location and shape to cause scratches on the surface of the part of the edge of the panel, which is inserted into the groove 23, ensuring reliable electrical connection between the electrical connecting device 20 and the panel 6.

Shown in figure 3, the most preferred implementation in the housing 21 of the connecting device 20 has a passage for a fastener such as a screw, through which the mechanical fastening of the panel 6 to the fixing plate 14 of the distribution electrical panel 1. Preferably, this passage out through the first hole 30 in the upper wall 25 of the connecting device 20 and second opposite openings 31 in the bottom is Tinqueux 26. In the most preferred implementation in the housing 21 of the device 20 between the first 30 and second 31 through holes provided with means for fixing the fastening element in the desired direction. Preferably, these means of fixation consisted of two locking tabs 32 whose one end is connected with spaced walls 27 and 28, respectively, and the second free end facing the inner space of the housing 21. Second ends that are separated and facing each other, act as guides during the passage of the installed fastener through the through holes 30, 31 of the housing of the connecting device. Preferably, the locking tabs 32 were obtained by die-cutting and bending of sheet forming spaced walls 27 and 28.

Figure 4 presents is shown in figure 3, the connecting device 20, mounted on the curved edge 40 of the panel 6. The fastening element 16 in the form of a screw passes through the through holes in the housing 21 of the connecting device 20. This fastening element 16 also passes through the material of the wall 41 of the panel 6, adjustably securing the panel 6 to the fixing plate 14 of the distribution electrical panel 1. The head of the screw 16, not visible in figure 4, is on the wall 41 of the panel on the reverse side of the connection device 20.

Figure 5 connecting device is on, shown in Fig.z shown secured by means of screw 16 between the panel 6 and the fixing plate 14 of the distribution electrical panel 1. The connecting device 20 is attached to the panel 6 as shown in figure 4, and provides an electrical connection to the panel 6 through scraping elements 24. Mounting screw 16 on the one hand has a head that is screwed into the wall 41 of the panel 6, and the other side end, in this example, the screw, which is screwed into the hole 15 in the fixing plate 14. By screwing the screw 16, the top wall 25 of the connecting device 20 rests against the end wall 41 of the panel 6. The pressure pad 6 on this top wall 25 due to compression by tightening the screw 16 is passed through spaced walls 27, 28 to the bottom wall 26 of the connecting device 20. This bottom wall 26 is in contact with the fixing plate 14 and in electrical contact, which ensures the electrical connection between the panel 6 and a reinforcing strip 14 distribution Board 1. In the preferred implementation shown in figure 5, the auxiliary clamping part 45 is put on securing the bar 14. This clamping part 45 provided with a threaded socket 46, precisely aligned with the hole 15 in the fixing plate 14. Threaded socket 46 is to accommodate an end to epilogo screw 16. Depending on the position of the clamp 45 of the bottom wall of the connecting device 20 is not limited directly on the reinforcing bar 14, and abuts against the wall of the clamp 45. One of the variants of implementation provides for the case when the clamp 45 is eliminated, and the coupling device 20 wall 26 rests directly in fixing the bar 14.

Based on the above, it is easy to understand that the purpose of the invention is completely achieved. Indeed, using a coupling device in accordance with this invention, the panel 6 can be electrically connected with the rest of the body distribution switchboard easily, quickly and seamlessly. It should be noted that using a connecting device in accordance with the present invention, the operation of the electric connection panel to the distribution Board is performed almost simultaneously with the operation of the mechanical fastening of the panel to the rest of the body switchboard.

Although described and illustrated only one variant of the invention, it should be understood that maybe a different number of variants and modifications within the scope and essence of the invention. For example, the scraping elements (for example, leaning forward pins) can also be located on the wall 26 of the connecting device, upir is considered in fixing the bar 14, delving into the past, at least partially, with the aim of creating a reliable electrical contact between the connecting device and a reinforcing strip.

1. The device (20) for electrical connection between the cover (6), which is attached to the power distribution Board (1), and electrically conductive surface (14) of the same electric distribution Board (1)with the connecting device (20) capable of being tightly squeezed between the wall (41) of the panel (6) and electrically conductive surface (14), comprising a housing (21)having a first wall (25), resting in the specified wall (41) of the panel (6)and second wall (26), opposite to the wall (25) and the remote from her and addressed to the specified surface (14) distribution Board to provide electrical contact with the surface, and containing a needle (22)attached to the housing (21) and forming a groove (23) for mounting on the edge of the specified panel (6), which also includes means (24) for applying a scratch on the specified edge of the panel (6).

2. The connecting device (20) according to claim 1, characterized in that the groove (23) is mainly U-shaped.

3. The connecting device (20) according to claim 1, characterized in that said device (20) is made as one piece of stamped and sognato the sheet metal.

4. The connecting device (20) according to claim 1, characterized in that the housing (21) also contains two spaced walls 27 and 28, is capable of maintaining a minimum distance between the said first (25) and the second (26) walls.

5. The connecting device (20) according to claim 1, characterized in that the scraping elements (24) have pointed ends or sharp edges, facing the inside of the specified groove (23).

6. The connecting device (20) according to claim 1, characterized in that the housing (21) contains a penetration hole for passage of the fastening element (16)used for the mechanical fastening of the specified panel (6) to the specified power distribution Board (1).

7. The connecting device (20) according to claim 6, characterized in that the housing (21) includes means (32) for fixing the mounting element (16) in the right direction.

8. The connecting device (20) according to claim 7, characterized in that the said fixation means includes two oppositely located legs, United by the corresponding end of the opposite walls of the specified body (21).

9. The connecting device (20) according to claim 1, characterized in that the electrically conductive surface (14) fixing strap (14) the power distribution Board (1) contains a hole (15) for the tavern is as specified mounting panel (6) to the specified distribution (1).

10. Electric distribution Board (1)containing at least one panel (6) and at least one connecting device (20) according to one of claims 1 to 9 for electrical connection of the specified panel (6) with the specified electrical switchboard (1).



 

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