Copper bar fusing protection structure

Abstract

The utility model relates to the technical field of copper bars, and discloses a copper bar fusing protection structure, which comprises copper bar bodies, a fusing plate arranged between the end parts of the two copper bar bodies, a first clamping plate and a second clamping plate arranged on the two surfaces of the two copper bar bodies, connecting plates fixedly connected to the two ends of the first clamping plate, and threaded columns fixedly mounted on the upper parts of the connecting plates, one end of the threaded column penetrates through the second clamping plate and is in threaded connection with a locking nut, clamping blocks are fixedly connected to the opposite side faces of the fusing plate, and first clamping grooves and clamping grooves matched with the clamping blocks and the fusing plate are formed in the side faces of the ends of the copper bar body. According to the utility model, through the cooperation of the first clamping plate, the second clamping plate, the connecting plate, the threaded column and the locking nut, the fused fusing plate and the clamping blocks on the two sides of the fused fusing plate are disassembled, and a new fusing plate is installed again, so that the effect of quickly installing or replacing the fusing plate is realized, the efficiency of disassembling and assembling the fusing plate is improved, and the practicability is high. And meanwhile, the cost for replacing the fusing plate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of copper busbar technology, specifically a copper busbar fusion protection structure. Background Technology

[0002] Copper busbars, also known as copper busbars or copper busbars, are high-current conductive products, usually made of copper and long conductors with rectangular or chamfered rectangular cross-sections. They mainly function to transmit current and connect electrical equipment in circuits. Copper busbars are widely used in electrical equipment, especially complete sets of power distribution equipment, and have advantages such as low resistivity and high bendability.

[0003] To improve the safety of copper busbars during use, existing technologies have made numerous improvements. For example, patent publication number CN217387471U discloses an easily cuttable and fusible copper busbar, comprising: a first connecting copper sheet, a second connecting copper sheet, and at least one cutting spring connected between the first and second connecting copper sheets. The cutting spring has at least one cutting surface groove, and a cutting point is formed at the cutting surface groove. This easily cuttable and fusible copper busbar's cutting point makes physical breaking of the material easier, ensuring the effectiveness of the cutting and improving reliability. Furthermore, the cutting spring has a fusing hole to form a fusing point, utilizing the metallurgical effect to control the melting point of the cross-section, achieving relatively precise fusing protection and insulation performance. This ensures that the internal insulation resistance meets the technical safety requirements after the cutting spring is cut. Simultaneously, the cutting spring is an alloy resistance part formed from a manganese-copper alloy, which can be used for circuit monitoring signal sampling, shortening the response time of signal acquisition and transmission.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative document describes a copper busbar fusion protection effect achieved by welding a cutting spring between the first and second connecting copper sheets, with a melting point on the cutting spring. However, in reality, when the melting point of the copper busbar melts, the entire copper busbar needs to be replaced, increasing replacement costs. Alternatively, the connection between the cutting spring and the copper busbar can be severed, followed by grinding and re-welding, which takes a long time and reduces the efficiency of replacing the copper busbar. Therefore, there is an urgent need in the art to improve the copper busbar fusion protection structure to overcome the shortcomings of the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a copper busbar fusion protection structure that enables rapid installation or replacement of the fuse board, improves the efficiency of fuse board assembly and disassembly, and reduces the cost of replacing the fuse board.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a copper busbar fusing protection structure, comprising a copper busbar body, a fusing plate provided between the ends of two copper busbar bodies, a first clamping plate and a second clamping plate provided on both sides of the two copper busbar bodies, a connecting plate fixedly connected to both ends of the first clamping plate, a threaded post fixedly installed on the upper part of the connecting plate, one end of the threaded post penetrating the second clamping plate and being threadedly connected to a locking nut, a snap-fit ​​block fixedly connected to the opposite sides of the fusing plate, and a first snap-fit ​​groove and a snap-fit ​​slot adapted to the snap-fit ​​block and the fusing plate respectively on the side of the end of the copper busbar body.

[0008] Preferably, the copper busbar body has a second snap-fit ​​groove at its end that is adapted to the first clamping plate, an opening groove at its end, the second snap-fit ​​groove being formed on the inner side wall of the opening groove, and a through groove communicating with the second snap-fit ​​groove and adapted to the connecting plate on the side of the end of the copper busbar body.

[0009] Preferably, the copper busbar body has a mounting groove on the side away from the fuse plate, and the mounting groove has a plurality of mounting holes.

[0010] Preferably, the copper busbar body has positioning grooves on opposite sides, which are used to position the copper busbar body.

[0011] Preferably, a countersunk groove communicating with a positioning groove is provided on one side of the copper busbar body, and the countersunk groove is used to fix and install the copper busbar body.

[0012] Preferably, the fused plate has several hollowed-out grooves.

[0013] Preferably, the cross-sections of the first clamping plate and the snap-fit ​​block are both trapezoidal, and the second snap-fit ​​groove and the first snap-fit ​​groove are both adapted to the first clamping plate and the snap-fit ​​block.

[0014] To address the shortcomings of existing technologies, this utility model provides a copper busbar fusion protection structure, overcoming the deficiencies of existing technologies. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, after the fuse plate melts, the melted fuse plate and the snap-fit ​​blocks on both sides can be disassembled by the cooperation of the first clamping plate, the second clamping plate, the connecting plate, the threaded post and the locking nut, and a new fuse plate can be installed. This achieves the effect of quickly installing or replacing the fuse plate, improving the efficiency of disassembling and assembling the fuse plate, and reducing the cost of replacing the fuse plate.

[0016] 2. In this utility model, the cross-sections of the first clamping plate and the snap-fit ​​block are both trapezoidal, and the second snap-fit ​​groove and the first snap-fit ​​groove are both adapted to the first clamping plate and the snap-fit ​​block. After the first clamping plate and the second clamping plate are locked by the locking nut, the connection contact area between the snap-fit ​​block and the first snap-fit ​​groove is increased, thereby improving the stability of power transmission after the fuse is installed.

[0017] 3. In this utility model, by setting the mounting groove, mounting hole, positioning groove and countersunk groove, it is convenient to install and position the copper busbar body.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram showing the separation of the first clamping plate, the fuse plate, and the second clamping plate in this utility model.

[0022] Figure 3 This is a partial cross-sectional view of the structure of the present invention, in which the fuse plate is installed at one end of the copper busbar body;

[0023] Figure 4 This is a partial cross-sectional view of the structure of the present invention, in which the fuse plate is installed on one end of the copper busbar body along the other axis.

[0024] In the diagram: 1. Copper busbar body 1; 2. Fuse plate; 3. First clamping plate; 4. Second clamping plate; 5. Connecting plate; 6. Threaded post; 7. Locking nut; 8. Snap-fit ​​block; 9. First snap-fit ​​groove; 10. Second snap-fit ​​groove; 11. Opening groove; 12. Through groove; 13. Mounting groove; 14. Mounting hole; 15. Positioning groove; 16. Countersunk groove; 17. Snap-fit ​​groove; 18. Hollowed-out groove. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Please see Figure 1-Figure 4 A copper busbar fusion protection structure includes a copper busbar body 1, a fusion plate 2 between the ends of two copper busbar bodies 1, a first clamping plate 3 and a second clamping plate 4 on both sides of the two copper busbar bodies 1, a connecting plate 5 fixedly connected to both ends of the first clamping plate 3, a threaded post 6 fixedly installed on the upper part of the connecting plate 5, one end of the threaded post 6 passing through the second clamping plate 4 and threadedly connected to a locking nut 7, a snap-fit ​​block 8 fixedly connected to the opposite sides of the fusion plate 2, a first snap-fit ​​groove 9 and a snap-fit ​​groove 17 adapted to the snap-fit ​​block 8 and the fusion plate 2 on the side of the end of the copper busbar body 1, and a plurality of hollow grooves 18 opened on the fusion plate 2.

[0027] Specifically, the first clamping plate 3 is close to the base on which the copper busbar body 1 is installed, and the snap-fit ​​blocks 8 on both sides of the fuse plate 2 are snapped into the first snap-fit ​​groove 9. The second clamping plate 4 is sleeved on the sides of the two threaded posts 6, and the locking nut 7 is tightened to connect the copper busbar body 1 and the fuse plate 2. The thickness of the fuse plate 2 is determined according to the actual power consumption. While meeting the actual rated current carrying capacity, the fuse plate 2 is the weakest part of the entire copper busbar. When an overload or short circuit occurs in the circuit, the temperature rises, and the fuse plate 2 is the weakest. With the help of several hollow slots 18, the fuse plate 2 will melt first, thereby disconnecting the circuit and achieving the function of protecting the circuit. After the fuse plate 2 melts, the melted fuse plate 2 can be removed and a new fuse plate 2 can be installed. This achieves the effect of quickly installing or replacing the fuse plate 2, improving the efficiency of disassembling and assembling the fuse plate 2, and reducing the cost of replacing the fuse plate 2. It is worth noting that the number and shape of the hollow slots 18 are not limited here.

[0028] As a technical optimization of this utility model, the copper busbar body 1 has a second snap-fit ​​groove 10 adapted to the first clamping plate 3 at its end, and an opening groove 11 at its end. The second snap-fit ​​groove 10 is opened on the inner side wall of the opening groove 11. The side of the end of the copper busbar body 1 has a through groove 12 that communicates with the second snap-fit ​​groove 10 and is adapted to the connecting plate 5. The cross-sections of the first clamping plate 3 and the snap-fit ​​block 8 are both trapezoidal. The second snap-fit ​​groove 10 and the first snap-fit ​​groove 9 are both adapted to the first clamping plate 3 and the snap-fit ​​block 8.

[0029] Specifically, when the first clamping plate 3 is installed, it is inserted into one side of the copper busbar body 1 through the opening slot 11, and the first clamping plate 3 is inserted into the second snap-fit ​​slot 10. The connecting plate 5 is located in the through slot 12 to limit the first clamping plate 3. At the same time, the cross sections of the first clamping plate 3 and the snap-fit ​​block 8 are both trapezoidal. The second snap-fit ​​slot 10 and the first snap-fit ​​slot 9 are both adapted to the first clamping plate 3 and the snap-fit ​​block 8. After the first clamping plate 3 and the second clamping plate 4 are locked by the locking nut 7, the connection contact area between the snap-fit ​​block 8 and the first snap-fit ​​slot 9 is increased, thereby improving the power transmission stability after the fuse plate 2 is installed.

[0030] As a technical optimization of this utility model, the copper busbar body 1 is provided with a mounting groove 13 on the side away from the fuse plate 2. The mounting groove 13 is provided with a plurality of mounting holes 14. The other end of the copper busbar body 1 is connected or installed through the mounting groove 13, the mounting holes 14 and the fasteners used during installation.

[0031] As a technical optimization of this utility model, positioning grooves 15 are provided on opposite sides of the copper busbar body 1. The positioning grooves 15 are used to position the copper busbar body 1. A countersunk groove 16 communicating with the positioning grooves 15 is provided on one side of the copper busbar body 1. The countersunk groove 16 is used to fix the copper busbar body 1. One end of the mounting stud for installing the copper busbar body 1 passes through the positioning groove 15, and the stud head is located in the countersunk groove 16, which improves the aesthetics of the copper busbar body 1 after installation.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A copper busbar fusion protection structure, comprising a copper busbar body (1), characterized in that, A fused plate (2) is provided between the ends of the two copper busbar bodies (1). A first clamping plate (3) and a second clamping plate (4) are provided on both sides of the two copper busbar bodies (1). A connecting plate (5) is fixedly connected to both ends of the first clamping plate (3). A threaded post (6) is fixedly installed on the upper part of the connecting plate (5). One end of the threaded post (6) passes through the second clamping plate (4) and is threadedly connected to a locking nut (7). A snap-fit ​​block (8) is fixedly connected to the opposite side of the fused plate (2). A first snap-fit ​​groove (9) and a snap-fit ​​groove (17) are opened on the side of the end of the copper busbar body (1) to match the snap-fit ​​block (8) and the fused plate (2).

2. The copper busbar fusion protection structure according to claim 1, characterized in that, The copper busbar body (1) has a second snap-fit ​​groove (10) at its end that is adapted to the first clamping plate (3). The copper busbar body (1) has an opening groove (11) at its end. The second snap-fit ​​groove (10) is opened on the inner side wall of the opening groove (11). The copper busbar body (1) has a through groove (12) at its end that is adapted to the connecting plate (5) and communicates with the second snap-fit ​​groove (10).

3. The copper busbar fusion protection structure according to claim 1, characterized in that, The copper busbar body (1) has a mounting groove (13) on one side away from the fuse plate (2), and the mounting groove (13) has a plurality of mounting holes (14).

4. The copper busbar fusion protection structure according to claim 1, characterized in that, The copper busbar body (1) has positioning grooves (15) on its opposite sides, and the positioning grooves (15) are used to position the copper busbar body (1).

5. The copper busbar fusion protection structure according to claim 4, characterized in that, The copper busbar body (1) has a countersunk groove (16) on one side that communicates with the positioning groove (15). The countersunk groove (16) is used to fix the copper busbar body (1) in place.

6. The copper busbar fusion protection structure according to claim 1, characterized in that, The fused plate (2) has several hollowed-out grooves (18).

7. The copper busbar fusion protection structure according to claim 2, characterized in that, The cross-sections of the first clamping plate (3) and the snap-fit ​​block (8) are both trapezoidal, and the second snap-fit ​​groove (10) and the first snap-fit ​​groove (9) are both adapted to the first clamping plate (3) and the snap-fit ​​block (8).

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