Busbar convenient to use

Abstract

The utility model discloses a bus bar convenient to use, which comprises a bus bar main body and a plurality of insertion sheets, the bus bar main body is provided with a plurality of first through holes distributed at intervals, and the upper end of each insertion sheet is provided with a vertically distributed adjusting hole. The first bolt sequentially penetrates through the adjusting hole of the insertion sheet and the first through hole of the busbar main body and then is spirally fixed with the first nut, and the first bolt and the first nut are matched to clamp and fix the busbar main body and the insertion sheet together and form electrical conductive connection; when a certain circuit breaker is detected to be damaged, the damaged circuit breaker can be detached and replaced by a new circuit breaker only by unscrewing the first screw fixed on the insertion piece corresponding to the damaged circuit breaker and the first bolt on the insertion piece and pulling the insertion piece to slide upwards relative to the first bolt, so that the insertion piece is separated from the damaged circuit breaker. And the first bolts of other insertion pieces do not need to be loosened, and other insertion pieces do not need to be disassembled relative to other undamaged circuit breakers, so that the working procedures can be reduced, the operation is simple and convenient, and the efficiency is high.

Description

A user-friendly bus Technical Fields

[0001] This utility model relates to the field of power technology, and specifically to a convenient busbar. Background Technology:

[0002] A circuit breaker is a switching device that can disconnect and connect load circuits, as well as disconnect faulty circuits, and prevent accidents from escalating while ensuring safe operation. Among circuit breakers, miniature circuit breakers are the most widely used. These miniature circuit breakers are applicable to various places such as industrial, commercial, high-rise, and residential buildings. Miniature circuit breakers are also one of the important power distribution electrical appliances in low-voltage power grid systems.

[0003] All outgoing lines in the distribution cabinet must be connected to circuit breakers before being led out. Multiple circuit breakers are typically installed horizontally side-by-side within the cabinet. Currently, the common technique is to directly connect each circuit breaker to the next using wires, and so on, until all circuit breakers are energized. However, this method is prone to misconnections and omissions, leading to short circuits or open circuits. Subsequently, circuit breaker busbars were developed, allowing multiple circuit breakers to be connected using a single busbar. Busbars offer advantages such as easy installation and good safety performance, and are therefore widely used.

[0004] Chinese utility model patent application number 202322972171.8 discloses an integrally molded electrical bus, including: a bus body, the bus body including a support plate, a plurality of inserts fixed on the support plate, and a plurality of grooves cut on the inserts to increase the insertion and extraction force between the device and the electrical switch, thereby reducing the probability of the device falling off and improving the safety of the device.

[0005] Chinese utility model patent application number 202420345871.6 discloses a busbar, which has a flame-retardant shell with two sliding grooves cut into the middle by a barrier section. After the first busbar and the second busbar are respectively assembled into the two sliding grooves, the terminals on the first busbar and the second busbar are exposed outside the flame-retardant shell, which facilitates wiring. There are two types of terminals: one is straight and the other is S-shaped. After the two types of terminals are staggered in the sliding grooves, the wiring positions at the ends will be on the same axis; the wiring is neat and beautiful.

[0006] Both types of busbars have the following drawbacks: Since the connectors / terminals of both busbars are integrally connected to the busbar body / busbar, and the busbar is connected to multiple circuit breakers arranged in a row via multiple connectors / terminals, and each is screwed in to achieve corresponding conduction; if a circuit breaker fails and needs replacement, because multiple circuit breakers are installed on the distribution cabinet's mounting rail using a clamping method, it is impossible to directly remove a damaged circuit breaker without disassembling the busbar. In this case, all the screws securing the busbar to the connectors / terminals on all circuit breakers must be loosened, and then the busbar must be removed relative to all circuit breakers before the damaged circuit breaker can be removed from the distribution cabinet's mounting rail. A new circuit breaker must then be installed on the mounting rail, and the busbar must be reinstalled on all circuit breakers, and all screws tightened to complete the repair. This entire process is extremely cumbersome and causes significant inconvenience to maintenance personnel.

[0007] In view of the above, the inventors propose the following technical solution. Invention content and utility model content:

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a convenient bus.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a convenient busbar includes a busbar body and several inserts spaced apart at the lower end of the busbar body and electrically connected to the busbar body. The busbar body is provided with several spaced first through holes. Each insert has vertically distributed adjustment holes at its upper end. A first bolt passes through the adjustment holes of the insert and the first through holes of the busbar body in sequence and is screwed and fixed with a first nut. The first bolt and the first nut cooperate to clamp and fix the busbar body and the insert together and form an electrical connection. When the first bolt is loosened relative to the first nut, the insert can slide up and down relative to the first bolt through the adjustment holes.

[0010] Furthermore, in the above technical solution, a first elastic washer is also fitted on the first bolt. One surface of the first elastic washer is in contact with the surface of the insert, and the other surface of the first elastic washer is in contact with the inner side of the head of the first bolt. The first elastic washer is in a compressed state.

[0011] Furthermore, in the above technical solution, the first elastic pad is a twisted disc-shaped pad.

[0012] Furthermore, in the above technical solution, the guide portion at the lower end of the insert is also provided with a limiting groove.

[0013] Furthermore, in the above technical solution, an insulating sleeve is also fitted onto the main body of the busbar.

[0014] Furthermore, in the above technical solution, the insulating sleeve is provided with a clearance opening to avoid the head of the first bolt, and the insulating sleeve has an upward-facing receiving groove on the inner wall of the upper end of the clearance opening, and the receiving groove is sleeved around the upper end of the insert.

[0015] Furthermore, in the above technical solution, one end of the busbar body is also connected to a rotatable guide arm that can be adjusted in angle.

[0016] Furthermore, in the above technical solution, a second through hole is provided at one end of the busbar body, and a third through hole is provided at the lower end of the guide arm. The second bolt passes through the third through hole and the second through hole in sequence and is screwed and fixed with the second nut. The second bolt and the second nut cooperate to clamp and fix the busbar body and the lower end of the guide arm together and form an electrical connection.

[0017] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In specific use, this utility model uses multiple plugs electrically connected to the main body of the busbar to be inserted into multiple circuit breakers and fastened with a first screw, so that the entire busbar and multiple circuit breakers are electrically connected. These circuit breakers are all installed on the mounting rail of the distribution cabinet by means of a clamp. When a circuit breaker is detected to be damaged and needs to be replaced, it is only necessary to loosen the first screw fixed to the plug corresponding to the damaged circuit breaker, loosen the first bolt on the plug, and pull the plug to slide upward relative to the first bolt through the adjustment hole, so that the plug is detached from the damaged circuit breaker. At this time, the damaged circuit breaker is not restricted by the plug, so the damaged circuit breaker can be quickly removed to replace the new circuit breaker, without loosening the first bolt of other plugs or removing other plugs relative to other undamaged circuit breakers. It can reduce the process, is extremely convenient to operate, and has extremely high maintenance efficiency, making this utility model highly competitive in the market. Figure description:

[0018] Figure 1 is a perspective view of this utility model;

[0019] Figure 2 is a cross-sectional view of this utility model;

[0020] Figure 3 is an assembly diagram of this utility model with a main switch and multiple circuit breakers;

[0021] Figure 4 is an exploded view of the present invention, the main switch, and multiple circuit breakers;

[0022] Figure 5 is a perspective view of the present invention after the insulating sleeve and the insulator are fitted;

[0023] Figure 6 is a perspective view of the insulating sleeve in this utility model. Detailed implementation method:

[0024] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0025] As shown in Figures 1-6, a convenient busbar is provided, which includes a busbar body 1 and several inserts 2 spaced apart at the lower end of the busbar body 1 and electrically connected to the busbar body. In actual use, the busbar body 1 is electrically connected to the main switch 100, and the conductive part of the insert 2 is inserted into the circuit breaker 200. The first screw is screwed through the circuit breaker 200 and contacts the conductive part of the insert 2 to form electrical conduction.

[0026] This utility model makes the busbar body 1 and the insert 2 into a separate structure. The two are independent entities, but are connected together by assembly to form an electrical connection. The specific assembly structure is as follows: the busbar body 1 is provided with a number of spaced first through holes 11, and each insert 2 is provided with vertically distributed adjustment holes 21 at its upper end. The first bolt 22 passes through the adjustment hole 21 of the insert 2 and the first through hole 11 of the busbar body 1 in sequence and is screwed and fixed with the first nut 23. The first bolt 22 and the first nut 23 cooperate to clamp and fix the busbar body 1 and the insert 2 together and form an electrical connection. When the first bolt 22 is loosened relative to the first nut 23, the insert 2 can slide up and down relative to the first bolt 22 through the adjustment hole 21. In practical use, this utility model uses multiple plugs 2 electrically connected to the busbar body 1, which are inserted into multiple circuit breakers 200 and secured with first screws. This ensures that the entire busbar and multiple circuit breakers 200 are electrically connected. These circuit breakers are installed on the mounting rail of the distribution cabinet using a clamping method. When a circuit breaker is detected to be damaged and needs to be replaced, simply loosen the first screw securing the plug 2 corresponding to the damaged circuit breaker and loosen the first bolt 22 on the plug 2. Then, pull the plug 2 to slide upward relative to the first bolt 22 through the adjustment hole 21, allowing the plug 2 to detach from the damaged circuit breaker. At this time, the damaged circuit breaker is not restricted by the plug 2, allowing for quick removal of the damaged circuit breaker for replacement with a new one. This eliminates the need to loosen the first bolts of other plugs 2 or remove other plugs 2 relative to other undamaged circuit breakers. This reduces procedures, is extremely convenient to operate, and has extremely high maintenance efficiency, giving this utility model a strong market competitiveness.

[0027] To improve the stability of the assembly structure between the insert 2 and the busbar body 1, and to enhance conductivity, the following design is implemented: a first elastic washer 24 is fitted onto the first bolt 22. One surface of the first elastic washer 24 contacts the surface of the insert 2, and the other surface of the first elastic washer 24 contacts the inner side of the head of the first bolt 22. The first elastic washer 24 is in a compressed state. The compressed state of the first elastic washer 24 increases the elastic force, making the contact between the first bolt 22 and the insert 2 tighter, thereby making the assembly structure between the insert 2 and the busbar body 1 more stable. The first elastic washer 24 is a twisted disc-shaped washer.

[0028] In some embodiments, the size of the first elastic washer 24 is larger than the size of the head of the first bolt 22, thereby increasing the contact area and making the head of the first bolt 22 more stably contact the insert 2 through the first elastic washer 24, thereby improving the overall assembly structure of the busbar to be more stable.

[0029] In some embodiments, the guide portion at the lower end of the insert 2 is further provided with a limiting groove, which is adapted to the first screw screw that is screwed on the circuit breaker 200. That is, after the first screw is tightened, the end of the first screw presses against the limiting groove, thereby preventing the insert 2 from accidentally coming off the circuit breaker 200 and ensuring the stability of the power supply.

[0030] In some embodiments, an insulating sleeve 3 is also fitted onto the busbar body 1 to improve safety performance. The insulating sleeve 3 has a clearance opening 31 that avoids the head of the first bolt 22, meaning the head of the first bolt 22 is exposed within the clearance opening 31, ensuring that the insulating sleeve 3 can be stably fitted onto the busbar body 1. Furthermore, the insulating sleeve 3 has an upward-facing receiving groove 32 on the inner wall of the upper end of the clearance opening 31. This receiving groove 32 is fitted around the upper periphery of the insert 2, thus covering the upper end of the insert 2, further improving safety performance. Simultaneously, it allows the insulating sleeve 3 to be more stably fitted onto the busbar body 1, preventing accidental detachment.

[0031] In some embodiments, one end of the busbar body 1 is further connected to a rotatable guide arm 4 for adjusting the angle. This guide arm 4 is used to connect with the main switch 100. Since the guide arm 4 can rotate relative to the busbar body 1, the angle can be adjusted when connecting with the main switch 100, making installation more convenient. Furthermore, an insulator 5 is provided on the outside of the guide arm 4 to improve safety; both ends of the guide arm 4 extend beyond the insulator 5.

[0032] The busbar body 1 is provided with a second through hole 12 at one end, and the lower end of the guide arm 4 is provided with a third through hole 41. The second bolt 42 passes through the third through hole 41 and the second through hole 12 in sequence and is screwed and fixed with the second nut 43. The second bolt 42 and the second nut 43 cooperate to clamp and fix the busbar body 1 and the lower end of the guide arm 4 together and form an electrical connection. Its assembly structure is stable.

[0033] In summary, in practical use, this utility model uses multiple plugs 2 electrically connected to the busbar body 1, which are inserted into multiple circuit breakers 200 and secured with first screws, to ensure electrical connection between the entire busbar and the multiple circuit breakers 200. These circuit breakers are all mounted on the mounting rail of the distribution cabinet using a clamping method. When a circuit breaker is detected to be damaged and needs replacement, it is only necessary to loosen the first screw securing the plug 2 corresponding to the damaged circuit breaker and loosen the first bolt 22 on that plug 2. The plug 2 is pulled and slids upward relative to the first bolt 22 through the adjustment hole 21, so that the plug 2 is detached from the damaged circuit breaker. At this time, the damaged circuit breaker is not restricted by the plug 2, so that the damaged circuit breaker can be quickly removed and replaced with a new circuit breaker without loosening the first bolt of other plugs 2 or removing other plugs 2 relative to other undamaged circuit breakers. This reduces the number of procedures, is extremely convenient to operate, and has extremely high maintenance efficiency, making this utility model highly competitive in the market.

[0034] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A convenient busbar, comprising a busbar body (1) and a plurality of inserts (2) spaced apart at the lower end of the busbar body (1) and electrically connected to the busbar body, characterized in that: The busbar body (1) is provided with a number of spaced first through holes (11). Each insert (2) is provided with vertically distributed adjustment holes (21) at its upper end. The first bolt (22) passes through the adjustment hole (21) of the insert (2) and the first through hole (11) of the busbar body (1) in sequence and is screwed and fixed with the first nut (23). The first bolt (22) and the first nut (23) cooperate to clamp and fix the busbar body (1) and the insert (2) together and form an electrical connection. When the first bolt (22) is loosened relative to the first nut (23), the insert (2) can slide up and down relative to the first bolt (22) through the adjustment hole (21).

2. The convenient bus according to claim 1, characterized in that: The first bolt (22) is also fitted with a first elastic washer (24), one surface of which is in contact with the surface of the insert (2), and the other surface of which is in contact with the inner side of the head of the first bolt (22), and the first elastic washer (24) is in a compressed state.

3. The convenient bus according to claim 2, characterized in that: The first elastic pad (24) is a twisted disc-shaped pad.

4. The convenient bus according to claim 1, characterized in that: The guide portion at the lower end of the insert (2) is also provided with a limiting groove.

5. A user-friendly bus according to any one of claims 1-4, characterized in that: An insulating sleeve (3) is also fitted onto the main body (1) of the busbar.

6. A convenient bus according to claim 5, characterized in that: The insulating sleeve (3) is provided with a relief opening (31) that avoids the head of the first bolt (22), and the insulating sleeve (3) has an upward-facing receiving groove (32) on the inner wall of the upper end of the relief opening (31), which is fitted around the upper end of the insert (2).

7. A user-friendly bus according to any one of claims 1-4, characterized in that: One end of the busbar body (1) is also connected to a rotatable guide arm (4) that can be adjusted in angle.

8. A convenient bus according to claim 7, characterized in that: The busbar body (1) is provided with a second through hole (12) at one end, and the lower end of the guide arm (4) is provided with a third through hole (41). The second bolt (42) passes through the third through hole (41) and the second through hole (12) in sequence and is screwed and fixed with the second nut (43). The second bolt (42) and the second nut (43) cooperate to clamp and fix the busbar body (1) and the lower end of the guide arm (4) together and form an electrical connection.

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