Universal circuit breaker with leakage protection function

Abstract

A universal circuit breaker with a leakage protection function comprises a universal circuit breaker and a support, the support is fixedly connected in the universal circuit breaker, a positioning mechanism is arranged in the universal circuit breaker, an insulating rubber pad is fixedly connected in the universal circuit breaker, an anti-creeping mechanism is arranged on the inner side of the insulating rubber pad, and the anti-creeping mechanism is fixedly connected in the universal circuit breaker. And the inner wall of the insulating rubber pad is fixedly connected with a second circuit board. When electric leakage occurs in the universal circuit breaker, current in the second circuit board leaks out and enters the first circuit board through a live wire, the first circuit board is connected with an external null line through a null line, passage current is formed in the first circuit board, and an insulating rubber pad plays an insulating role. Current leakage in the universal circuit breaker is avoided, the electric leakage protection function is achieved, at the moment, the indicator light is turned on, workers can find electric leakage in time and handle the electric leakage, the universal circuit breaker has the electric leakage protection function, and electric leakage accidents are not prone to happening.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a universal circuit breaker with a leakage protection function. Background Art

[0002] Universal circuit breakers are important electrical components in industrial and civil low-voltage power distribution equipment, and are mostly used as the main switch on the low-voltage side of the distribution system.

[0003] For example, the universal circuit breaker with patent number CN115881494A includes a circuit breaker body shell, three arc extinguishing chambers, three groups of primary terminal wiring assemblies and an insulating crimping cover for crimping and fixing the arc extinguishing chamber in the shell. The above document still has shortcomings. When in use, the arc extinguishing chamber shell is no longer equipped with an additional mounting shell and screws. Instead, the three arc extinguishing chambers are crimped and fixed together by using an insulating crimping cover, which is not only convenient for disassembly and assembly, but also can ensure the minimization and simplification of the space occupied by the arc extinguishing chamber itself. Since the operating voltage of the universal circuit breaker is relatively high and the exposed part of the primary terminal wiring assembly is relatively high, the insulating protection plate added in this embodiment can significantly improve the electrical insulation performance between the three groups of primary terminal wiring assemblies. However, the universal circuit breaker in the above document will have electrical phenomena during use. The universal circuit breaker does not have a leakage protection function and is prone to leakage accidents. At the same time, when the power cord is connected to the universal circuit breaker, the power cord is usually fixed by bolts, which is more troublesome to operate and inconvenient to achieve the connection between the power cord and the universal circuit breaker. Summary of the invention

[0004] The utility model aims to solve the problem that the universal circuit breaker in the prior art does not have a leakage protection function, and provides a universal circuit breaker with a leakage protection function.

[0005] The utility model adopts a technical solution to solve the technical problem: the universal circuit breaker with leakage protection function comprises a universal circuit breaker and a bracket, the bracket is fixedly connected to the inside of the universal circuit breaker, a positioning mechanism is arranged inside the universal circuit breaker, an insulating rubber pad is fixedly connected to the inside of the universal circuit breaker, an anti-leakage mechanism is arranged on the inner side of the insulating rubber pad, a second circuit board is fixedly connected to the inner wall of the insulating rubber pad, a wiring hole is arranged on the surface of the second circuit board, and a mounting plate is fixedly connected to the outer wall of the universal circuit breaker.

[0006] For further improvement, the anti-leakage mechanism includes a first circuit board, the outer wall of the first circuit board is fixedly connected to the insulating rubber pad, the first circuit board is electrically connected to the second circuit board through a live wire, an indicator light is provided on the surface of the first circuit board, a neutral wire is fixedly connected to the bottom of the first circuit board, and the outer wall of the neutral wire is fixedly connected to the universal circuit breaker and the insulating rubber pad.

[0007] Further improvement, the positioning mechanism includes a worm, the outer walls at both ends of the worm are rotatably connected to the universal circuit breaker and the bracket through bearings, the end of the worm is fixed with a handle, the worm is meshingly connected to the worm wheel, the surface of the worm wheel is fixed with a first gear, the first gear is meshingly connected to the second gear, the second gear and the worm wheel are both rotatably connected to the bracket through bearings, the surfaces of the first gear and the second gear are fixed with a clamping rod, and the outer wall of the clamping rod is fixed with a plastic block.

[0008] For further improvement, a heat dissipation hole is arranged above the universal circuit breaker, and a filter screen is fixedly connected to the inner wall of the heat dissipation hole.

[0009] Further improvement, a protective plate is fixedly connected to the surface of the universal circuit breaker by screws, and a through hole is arranged inside the protective plate.

[0010] Further improvement, a mounting hole is provided inside the mounting plate.

[0011] The beneficial effect of the utility model is as follows: the utility model, through the cooperation between the first circuit board, the live wire, the indicator light and the neutral wire, when leakage occurs inside the universal circuit breaker, the current inside the second circuit board leaks out, the current enters the inside of the first circuit board through the live wire, the first circuit board is connected with the external neutral wire through the neutral wire, a path current is formed inside the first circuit board, the insulating rubber pad plays an insulating role, avoids the leakage of current inside the universal circuit breaker, and realizes the leakage protection function. At this time, the indicator light is on, which is convenient for the staff to find the leakage in time and deal with it. The universal circuit breaker has the leakage protection function and is not prone to leakage accidents.

[0012] Through the cooperation between the worm, handle, worm wheel, first gear, second gear, clamping rod and plastic block, the handle drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the first gear to rotate, the first gear drives the second gear to rotate, the first gear and the second gear respectively drive the corresponding clamping rod to move, the clamping rod drives the plastic block to move, the plastic block contacts the outer wall of the power cord to position the power cord, the power cord is fixed inside the wiring hole and connected to the second circuit board, thereby realizing the connection between the power cord and the universal circuit breaker. The operation is relatively simple, and it is convenient to realize the connection between the power cord and the universal circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the mechanism of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the connection between the mounting plate, mounting holes and heat dissipation holes in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connection between the worm, the worm wheel and the handle in the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the connection between the live wire, the indicator light and the neutral wire in the utility model;

[0018] Figure 6 The utility model is a schematic diagram of the structure of the connection between the universal circuit breaker and the insulating rubber pad.

[0019] Explanation of the accompanying drawings: 1. Universal circuit breaker, 2. Bracket, 3. Leakage prevention mechanism, 301. First circuit board, 302. Live wire, 303. Indicator light, 304. Neutral wire, 3a1. Observation window, 4. Positioning mechanism, 401. Worm, 402. Handle, 403. Worm wheel, 404. First gear, 405. Second gear, 406. Clamping rod, 407. Plastic block, 5. Insulating rubber pad, 6. Second circuit board, 7. Wiring hole, 8. Mounting plate, 9. Mounting hole, 10. Heat dissipation hole, 11. Filter, 12. Protective plate, 13. Through hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings: Embodiment 1:

[0021] Refer to the attached Figure 1-6 : In this embodiment, a universal circuit breaker with a leakage protection function includes a universal circuit breaker 1 and a bracket 2, the bracket 2 is fixedly connected to the inside of the universal circuit breaker 1, a positioning mechanism 4 is arranged inside the universal circuit breaker 1, the positioning mechanism 4 facilitates the connection between the power line and the universal circuit breaker 1, and an insulating rubber pad 5 is fixedly connected to the inside of the universal circuit breaker 1, and the insulating rubber pad 5 plays an insulating role on the inside of the universal circuit breaker 1 to prevent the universal circuit breaker 1 from leakage;

[0022] An anti-leakage mechanism 3 is provided on the inner side of the insulating rubber pad 5, and the anti-leakage mechanism 3 enables the universal circuit breaker 1 to be discovered in time when leakage occurs. A second circuit board 6 is fixedly connected to the inner wall of the insulating rubber pad 5, and a wiring hole 7 is provided on the surface of the second circuit board 6. The power cord 7 is inserted into the wiring hole 7 to achieve connection with the second circuit board 6. A mounting plate 8 is fixedly connected to the outer wall of the universal circuit breaker 1. A heat dissipation hole 10 is provided above the universal circuit breaker 1. The heat dissipation hole 10 is convenient for the internal heat dissipation of the universal circuit breaker 1. A filter screen 11 is fixedly connected to the inner wall of the heat dissipation hole 10. The filter screen 11 prevents dust and impurities from entering the interior of the universal circuit breaker 1 through the heat dissipation hole 10. A protective plate 12 is fixedly connected to the surface of the universal circuit breaker 1 by screws. The protective plate 12 can be disassembled. A through hole 13 is provided inside the protective plate 12. The through hole 13 is convenient for the power cord to pass through. A mounting hole 9 is provided inside the mounting plate 8. The mounting hole 9 is convenient for screws to pass through and install and fix the mounting plate 8.

[0023] The anti-leakage mechanism 3 includes a first circuit board 301, a live wire 302, an indicator light 303 and a neutral wire 304. The outer wall of the first circuit board 301 is fixedly connected to the insulating rubber pad 5. The first circuit board 301 is electrically connected to the second circuit board 6 through the live wire 302. When leakage occurs in the second circuit board 6, electricity enters the inside of the first circuit board 301 through the live wire 302. An indicator light 303 is arranged on the surface of the first circuit board 301. When current passes through the inside of the first circuit board 301, the indicator light 303 lights up, and leakage can occur in time. A neutral wire 304 is fixedly connected to the bottom of the first circuit board 301, and the neutral wire 304 is connected to the external neutral wire. The outer wall of the neutral wire 304 is fixedly connected to the universal circuit breaker 1 and the insulating rubber pad 5;

[0024] When leakage occurs inside the universal circuit breaker 1, the current inside the second circuit board 6 leaks out, and the current enters the first circuit board 301 through the live wire 302. The first circuit board 301 is connected to the external neutral wire through the neutral wire 304. A path current is formed inside the first circuit board 301. The insulating rubber pad 5 plays an insulating role to prevent the current inside the universal circuit breaker 1 from leaking out, thereby realizing the leakage protection function. At this time, the indicator light 303 lights up, so that the staff can find the leakage in time and handle it. The universal circuit breaker 1 has a leakage protection function and is not prone to leakage accidents.

[0025] The positioning mechanism 4 includes a worm 401, a handle 402, a worm wheel 403, a first gear 404, a second gear 405, a clamping rod 406 and a plastic block 407. The outer walls at both ends of the worm 401 are rotatably connected to the universal circuit breaker 1 and the bracket 2 through bearings, respectively. The end of the worm 401 is fixedly connected to the handle 402, and the handle 402 drives the worm 401 to rotate. The worm 401 is meshed and connected with the worm wheel 403. The worm 401 drives the worm wheel 403 to rotate. The surface of the worm wheel 403 is fixedly connected to the first gear 404, and the worm wheel 403 drives the first gear 404 to transfer;

[0026] The first gear 404 is meshed and connected with the second gear 405, and the first gear 404 drives the second gear 405 to rotate. The second gear 405 and the worm gear 403 are both rotatably connected with the bracket 2 through bearings. The surfaces of the first gear 404 and the second gear 405 are fixedly connected with clamping rods 406, and the first gear 404 and the second gear 405 respectively drive the corresponding clamping rods 406 to move. The outer wall of the clamping rod 406 is fixedly connected with a plastic block 407, and the clamping rod 406 drives the plastic block 407 to move;

[0027] The handle 402 drives the worm 401 to rotate, the worm 401 drives the worm wheel 403 to rotate, the worm wheel 403 drives the first gear 404 to rotate, the first gear 404 drives the second gear 405 to rotate, the first gear 404 and the second gear 405 respectively drive the corresponding clamping rod 406 to move, the clamping rod 406 drives the plastic block 407 to move, the plastic block 407 contacts the outer wall of the power cord to position the power cord, the power cord is fixed inside the wiring hole 7 and connected to the second circuit board 6, thereby realizing the connection between the power cord and the universal circuit breaker 1, the operation is relatively simple, and it is convenient to realize the connection between the power cord and the universal circuit breaker 1.

[0028] Working principle:

[0029] When the universal circuit breaker with leakage protection function is in use, the mounting plate 8 is fixed at a designated position by passing a fixing screw through the mounting hole 9, thereby achieving the installation and fixation of the universal circuit breaker 1, and the heat dissipation hole 10 facilitates the heat dissipation inside the universal circuit breaker 1;

[0030] Power cord connection stage:

[0031] The power cord connected to the universal circuit breaker 1 is passed through the through hole 13 and inserted into the interior of the wiring hole 7, and the handle 402 is turned. The handle 402 drives the worm 401 to rotate, and the worm 401 drives the worm wheel 403 to rotate. The worm wheel 403 drives the first gear 404 to rotate, and the first gear 404 drives the second gear 405 to rotate. The first gear 404 and the second gear 405 respectively drive the corresponding clamping rod 406 to move, and the clamping rod 406 drives the plastic block 407 to move. The plastic block 407 contacts the outer wall of the power cord to position the power cord. The power cord is fixed inside the wiring hole 7 and connected to the second circuit board 6, thereby realizing the connection between the power cord and the universal circuit breaker 1. The operation is relatively simple, and it is convenient to realize the connection between the power cord and the universal circuit breaker 1. The insulating setting of the plastic block 407 prevents the staff from getting an electric shock when turning the handle 402;

[0032] Leakage protection stage:

[0033] When leakage occurs inside the universal circuit breaker 1, the current inside the second circuit board 6 leaks out, and the current enters the first circuit board 301 through the live wire 302. The first circuit board 301 is connected to the external neutral wire through the neutral wire 304. A path current is formed inside the first circuit board 301. The insulating rubber pad 5 plays an insulating role to prevent the current inside the universal circuit breaker 1 from leaking out, thereby realizing the leakage protection function. At this time, the indicator light 303 lights up, so that the staff can find the leakage in time and handle it. The universal circuit breaker 1 has a leakage protection function and is not prone to leakage accidents. Embodiment 2:

[0034] See attached Figure 1-6 : In this embodiment, a universal circuit breaker with a leakage protection function is provided, and the leakage protection mechanism 3 further includes an observation window 3a1, which is arranged on the surface of the protection plate 12, and the interior of the universal circuit breaker 1 can be observed through the observation window 3a1;

[0035] The observation window 3 a 1 facilitates observation of the interior of the universal circuit breaker 1 and the situation inside the universal circuit breaker 1 .

[0036] Working principle:

[0037] The observation window 3 a 1 facilitates observation of the interior of the universal circuit breaker 1 and the situation inside the universal circuit breaker 1 .

[0038] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A universal circuit breaker with a leakage protection function, comprising a universal circuit breaker (1) and a bracket (2), wherein the bracket (2) is fixedly connected to the inside of the universal circuit breaker (1), and is characterized in that: A positioning mechanism (4) is provided inside the universal circuit breaker (1), an insulating rubber pad (5) is fixedly connected inside the universal circuit breaker (1), an anti-leakage mechanism (3) is provided on the inner side of the insulating rubber pad (5), a second circuit board (6) is fixedly connected to the inner wall of the insulating rubber pad (5), a wiring hole (7) is provided on the surface of the second circuit board (6), and a mounting plate (8) is fixedly connected to the outer wall of the universal circuit breaker (1).

2. The universal circuit breaker with leakage protection function according to claim 1 is characterized in that: The anti-leakage mechanism (3) comprises a first circuit board (301), the outer wall of the first circuit board (301) is fixedly connected to the insulating rubber pad (5), the first circuit board (301) is electrically connected to the second circuit board (6) via a live wire (302), an indicator light (303) is provided on the surface of the first circuit board (301), a neutral wire (304) is fixedly connected below the first circuit board (301), and the outer wall of the neutral wire (304) is fixedly connected to the universal circuit breaker (1) and the insulating rubber pad (5).

3. The universal circuit breaker with leakage protection function according to claim 1 is characterized in that: The positioning mechanism (4) comprises a worm (401), the outer walls at both ends of the worm (401) are rotatably connected to the universal circuit breaker (1) and the bracket (2) via bearings, the end of the worm (401) is fixedly connected to a handle (402), the worm (401) is meshingly connected to a worm wheel (403), the surface of the worm wheel (403) is fixedly connected to a first gear (404), the first gear (404) is meshingly connected to a second gear (405), the second gear (405) and the worm wheel (403) are both rotatably connected to the bracket (2) via bearings, the surfaces of the first gear (404) and the second gear (405) are both fixedly connected to a clamping rod (406), and the outer wall of the clamping rod (406) is fixedly connected to a plastic block (407).

4. The universal circuit breaker with leakage protection function according to claim 1 is characterized in that: A heat dissipation hole (10) is provided above the universal circuit breaker (1), and a filter screen (11) is fixedly connected to the inner wall of the heat dissipation hole (10).

5. The universal circuit breaker with leakage protection function according to claim 1 is characterized in that: A protective plate (12) is fixedly connected to the surface of the universal circuit breaker (1) by means of screws, and a through hole (13) is provided inside the protective plate (12).

6. The universal circuit breaker with leakage protection function according to claim 1 is characterized in that: A mounting hole (9) is provided inside the mounting plate (8).

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