Bridge type contact structure with heat dissipation function

Abstract

The utility model relates to the technical field of bridge-type contact structures, and discloses a bridge-type contact structure with a heat dissipation function, which comprises a bus copper bar and contact bridge mounting pieces, the contact bridge mounting pieces are arranged on the upper side and the lower side of the bus copper bar, a fixing plate is fixedly arranged on the bus copper bar, and the fixing plate is connected with the contact bridge mounting pieces; a plurality of contact bridges and spring pieces are arranged in the contact bridge mounting piece, and the spring pieces are mounted above the contact bridges; and a plurality of heat dissipation grid sheets are arranged on the contact bridge mounting piece. According to the utility model, the plurality of heat dissipation grid sheets are used to substantially reduce temperature rise, the spring sheet is used to press the contact bridge, the balance of pressure at two ends of the contact sheet and the assembly efficiency are substantially improved, the contact bridge installation member is positioned and fixed on the upper and lower sides of the bus copper bar through the fixing plate, and then the heat dissipation grid sheets are used to dissipate heat of the bridge-type contact. The contact surface area with air is increased, the temperature rise is effectively reduced, the contact oxidation risk is reduced, conductivity and heat dissipation are considered, and a good heat dissipation function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge contact structure technical field, concretely is a bridge contact structure with heat dissipation function. BACKGROUND

[0002] The drawer type product plays a convenient role in line maintenance and equipment maintenance. In the prior art, the drawer type traditional bridge contact realizes conduction by clamping the busbar from front to back, and the contact piece adopts a multi-piece stacking design. For example, a patent with publication number CN102637537B discloses a bridge contact for a draw-out type switchgear. Although this structure can conduct current, the contact area is small, the contact resistance is large, and serious heating occurs during conduction. Increasing the number of bridge contacts is not economical to reduce heating.

[0003] In addition, the contact is usually installed in a closed space, and the heat dissipation efficiency is low, further exacerbating the temperature rise problem. Long-term high-temperature operation easily leads to oxidation of the contact and degradation of the material performance, affecting the service life and safety of the switch. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a bridge contact structure with heat dissipation function to solve the problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions.

[0006] A bridge contact structure with heat dissipation function, the bridge contact structure comprises a busbar copper bar and a contact bridge mounting piece, the contact bridge mounting piece is arranged on the upper and lower sides of the busbar copper bar, a fixed plate is fixedly arranged on the busbar copper bar, and the fixed plate is connected with the contact bridge mounting piece.

[0007] A plurality of contact bridges and spring sheets are arranged in the contact bridge mounting piece, and the spring sheets are arranged above the contact bridges.

[0008] A plurality of heat dissipation fins are arranged on the contact bridge mounting piece to improve the heat dissipation efficiency of the contact.

[0009] Further, the fixed plate is provided with a protruding block at both ends for positioning with the contact bridge mounting piece.

[0010] Further, the contact bridge mounting piece is provided with a mounting groove for mounting the contact bridge and the spring sheet, and the contact bridge is arranged in the mounting groove.

[0011] Further, the contact bridge mounting piece is provided with a cooperation hole at both ends, and the cooperation hole is connected with the protruding block.

[0012] Further, the contact bridge mounting piece is fixedly provided with a horizontal rod at both sides, and the contact bridge is provided with a protruding point at both ends for contact connection with the horizontal rod.

[0013] Further, the top of the contact bridge mounting is fixed with a boss matched with the spring sheet, and the heat dissipation grid sheet is located on the top of the boss, and the boss is downwardly attached to the middle part of the spring sheet.

[0014] Further, the top of the contact bridge is provided with a platform matched with the spring sheet for connecting the spring sheet.

[0015] The bridge-type contact structure with the heat dissipation function has the advantages that:

[0016] 1. The bridge-type contact structure with the heat dissipation function can significantly reduce the temperature rise by using the heat dissipation grid sheet, and the spring sheet is used to crimp the contact bridge, so that the balance of the pressure at the two ends of the contact sheet and the assembly efficiency are significantly improved.

[0017] 2. The bridge-type contact structure with the heat dissipation function has the advantages of simple structure, positioning and fixing the contact bridge mounting on the upper and lower sides of the bus copper bar through the fixed plate, then dissipating heat for the bridge-type contact through the heat dissipation grid sheet, increasing the air contact surface area, effectively reducing the temperature rise, reducing the risk of contact oxidation, and balancing the conductivity and heat dissipation, and having good heat dissipation function. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings.

[0019] Figure 1 It is the bridge-type contact structure schematic view of the utility model;

[0020] Figure 2 It is the bridge-type contact structure explosion schematic view of the utility model;

[0021] Figure 3 It is the structure schematic view of the contact bridge mounting of the utility model;

[0022] Figure 4 It is the structure schematic view of the contact bridge mounting of the utility model;

[0023] Figure 5 It is the structure schematic view of the contact bridge of the utility model;

[0024] Figure 6 It is the bridge-type contact structure use scene schematic view of the utility model.

[0025] The reference signs are explained as follows:

[0026] 1, bus copper bar;2, contact bridge mounting;3, screw;4, fixed plate;5, contact bridge;6, spring sheet;21, heat dissipation grid sheet;22, cross bar;23, matched hole;24, boss;25, installation groove;41, protruding block;51, platform;52, convex point;53, arc end. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] A bridge contact structure with heat dissipation function, as shown in Figures 1-6 The busbar copper bar 1 is provided with a fixed plate 4 fixed by screws 3, and the fixed plate 4 is provided with protruding blocks 41 at both ends for positioning in cooperation with the contact bridge mounting member 2.

[0029] The busbar copper bar 1 is provided with a fixed plate 4 fixed by screws 3, and the fixed plate 4 is provided with protruding blocks 41 at both ends for positioning in cooperation with the contact bridge mounting member 2.

[0030] In the embodiment, the contact bridge mounting member 2 is generally made of aluminum or copper.

[0031] The contact bridge mounting member 2 is provided with a plurality of heat dissipation fins 21, and the contact bridge mounting member 2 is provided with mounting grooves 25 for mounting the contact bridge 5 and the spring sheet 6, the contact bridge 5 is arranged in the mounting groove 25 in sequence, and the both ends of the contact bridge mounting member 2 are provided with cooperation holes 23 connected with the protruding blocks 41 on the fixed plate 4.

[0032] The contact bridge mounting member 2 is provided with a plurality of heat dissipation fins 21, and the contact bridge mounting member 2 is provided with mounting grooves 25 for mounting the contact bridge 5 and the spring sheet 6, the contact bridge 5 is arranged in the mounting groove 25 in sequence, and the both ends of the contact bridge mounting member 2 are provided with cooperation holes 23 connected with the protruding blocks 41 on the fixed plate 4.

[0033] The both ends of the contact bridge 5 are provided with protruding points 52 in contact with the cross bars 22, and the top of the contact bridge 5 is provided with a platform 51 in cooperation with the spring sheet 6 for connecting the spring sheet 6 and fixing the position of the spring sheet 6.

[0034] As shown in Figure 6As shown, in the installation process, the bridge contact structure with heat dissipation function is installed in the drawer seat, and in use, the switch body is pushed into the drawer, the busbar copper bar 1 on the switch body is pushed into the bridge contact structure with heat dissipation function, in the sliding process, the busbar copper bar 1 is in contact with the arc end 53 of the end of the contact bridge 5 and supports the contact bridge 5, the spring sheet 6 is compressed, the spring sheet 6 provides a counterforce to push the contact bridge 5, the contact bridge 5 is pressed on the busbar copper bar 1, and the current is conducted; the heat dissipation grid 21 on the contact bridge mounting 2 is exposed, the contact surface area with air is increased, the temperature rise is effectively reduced, the risk of contact oxidation is reduced, the conductivity and heat dissipation are considered, and the bridge contact structure has good heat dissipation function.

[0035] The basic principle, main characteristics and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A bridge contact structure with heat dissipation function, characterized in that, The bridge type contact structure comprises a busbar copper bar (1) and a contact bridge mounting member (2), the contact bridge mounting member (2) is arranged on the upper and lower sides of the busbar copper bar (1), the busbar copper bar (1) is fixedly provided with a fixed plate (4), and the fixed plate (4) is connected with the contact bridge mounting member (2); A plurality of contact bridges (5) and spring sheets (6) are arranged in the contact bridge mounting member (2), and the spring sheet (6) is arranged above the contact bridge (5); A plurality of heat dissipation grid fins (21) are arranged on the contact bridge mounting member (2), so that the contact heat dissipation efficiency is improved.

2. The bridge contact structure with heat dissipation function according to claim 1, characterized in that, The two ends of the fixed plate (4) are provided with protruding blocks (41) which are matched with the contact bridge mounting member (2) to be positioned.

3. The bridge contact structure with heat dissipation function according to claim 1, characterized in that, The contact bridge mounting member (2) is provided with mounting grooves (25) for mounting the contact bridge (5) and the spring sheet (6), and the contact bridge (5) is arranged in the mounting groove (25).

4. The bridge contact structure with heat dissipation function according to claim 2, characterized in that, The two ends of the contact bridge mounting member (2) are provided with matched holes (23), and the matched holes (23) are connected with the protruding blocks (41).

5. The bridge contact structure with heat dissipation function according to claim 1, characterized in that, The two sides of the contact bridge mounting member (2) are fixedly provided with horizontal rods (22), and the two ends of the contact bridge (5) are provided with protruding points (52) which are in contact with the horizontal rods (22).

6. The bridge contact structure with heat dissipation function according to claim 1, characterized in that, The top of the contact bridge mounting member (2) is fixedly provided with a protruding block (24) which is matched with the spring sheet (6), the heat dissipation grid fin (21) is located on the top of the protruding block (24), and the protruding block (24) is downwardly attached to the middle part of the spring sheet (6).

7. The bridge contact structure with heat dissipation function according to claim 1, characterized in that, The top of the contact bridge (5) is provided with a platform (51) which is matched with the spring sheet (6) and is used for connecting the spring sheet (6).

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