Power short circuit protection device

Abstract

The utility model discloses an electric power short circuit protection device which comprises a current release, a switch is arranged in the current release, a counter and a button are sequentially installed on the front face of the current release from bottom to top, and a supporting plate and a limiting plate are sequentially and fixedly connected to the back face of the current release from top to bottom. And a limiting column is inserted into the supporting plate, one end of the limiting column is fixedly connected with a wedge-shaped block, and the limiting column and the wedge-shaped block are connected through a supporting spring. According to the electric power short circuit protection device, when the current release trips, the switch applies pressure to the button, so that the count of the counter can be increased, and a user can know the service condition of the current release in advance according to the comparison between the tripping frequency of the counter and the rated service frequency, so that the current release can be replaced in advance, and the service life of the current release is prolonged. And the probability of safety accidents is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power short-circuit protection, in particular to a power short-circuit protection device. Background Art

[0002] The trip unit is a device mechanically connected to the circuit breaker to release the holding mechanism and automatically disconnect the circuit breaker. Its function is to disconnect the circuit through leakage protection when there is leakage in the line or when a person is electrocuted, thereby achieving the purpose of power short circuit protection.

[0003] However, when using the existing circuit short-circuit protection device, the user generally replaces it only after the protection device is damaged, and the user cannot check the usage status of the short-circuit protector in advance. However, once damaged, if it can be discovered in time, the loss will be small. If it is not discovered in time, the short-circuit protection device will malfunction, which is likely to cause a safety accident. For this reason, we propose a power short-circuit protection device. Utility Model Content

[0004] The main purpose of the present invention is to provide a power short circuit protection device that can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A power short-circuit protection device includes a current tripper, a switch is provided inside the current tripper, a counter and a button are installed on the front of the current tripper from bottom to top, a support plate and a limit plate are fixedly connected to the back of the current tripper from top to bottom, a limit column is inserted into the interior of the support plate, one end of the limit column is fixedly connected to a wedge block, and the limit column and the wedge block are connected by a support spring.

[0007] In order to prevent the limiting column from detaching from the support plate, as a power short-circuit protection device of the present invention, the end of the limiting column away from the wedge block is fixedly connected to a circular baffle.

[0008] In order to facilitate installation on the mounting frame, as a power short-circuit protection device of the utility model, the number of the wedge blocks is two, and the backs of the two wedge blocks are fixedly connected with L-shaped gusset plates.

[0009] In order to facilitate the control of the movement of the triangular push block, as an electric short-circuit protection device of the utility model, a guide column is inserted into the interior of the limit plate, and one end of the guide column is fixedly connected to the triangular push block.

[0010] In order to reset the triangular push block, as a power short-circuit protection device of the present invention, the triangular push block and the limit plate are connected via a reset spring, and the normal state of the reset spring is a compressed state.

[0011] In order to facilitate the control of the movement of the guide column, as a power short-circuit protection device of the utility model, the end of the guide column away from the triangular push block is fixedly connected to the push handle block.

[0012] In order to facilitate the connection between the counter and the button, as a power short-circuit protection device of the present invention, the counter and the button are electrically connected through a wire.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This power short-circuit protection device is configured by coordinating a current release, a switch, a counter, and a button. When the current release trips, the switch applies pressure to the button, which increases the counter. The user can compare the number of trips recorded in the counter with the rated number of times used to know the current release's usage status in advance, allowing for early replacement and effectively reducing the probability of safety accidents.

[0015] 2. The power short-circuit protection device is arranged through the coordination between the support plate, the limit plate, the limit column, the wedge block, the support spring, the circular baffle, the L-shaped buckle plate, the guide column and the triangular push block. When the current release needs to be installed, the staff only needs to press the push handle block to make the guide column drive the triangular push block to move, so that the distance between the two triangular push blocks is widened. After placing them on the mounting frame, the staff removes the pressure on the push handle block. Under the action of the support spring, the distance between the two L-shaped buckle plates becomes smaller and can be buckled on the mounting frame. The installation is simple and convenient, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the axonometric structure of a power short-circuit protection device according to Example 1 of the utility model;

[0017] Figure 2 This is a rear axonometric structural diagram of a power short-circuit protection device according to Example 1 of the utility model;

[0018] Figure 3 This is a schematic cross-sectional isometric structural diagram of a power short-circuit protection device according to Example 1 of the present utility model;

[0019] Figure 4 This is one of the partially enlarged structural diagrams of a power short-circuit protection device according to Example 1 of the present utility model;

[0020] Figure 5 This is the second partially enlarged structural diagram of an electric short-circuit protection device according to Example 1 of the utility model.

[0021] In the figure: 1. Current release; 2. Switch; 3. Counter; 4. Push button; 5. Support plate; 6. Limit plate; 7. Limit column; 8. Wedge block; 9. Support spring; 10. Circular baffle; 11. L-shaped buckle plate; 12. Guide column; 13. Triangular push block; 14. Reset spring; 15. Push handle block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figure 1-5 As shown, a power short-circuit protection device includes a current tripper 1, a switch 2 is provided inside the current tripper 1, a counter 3 and a button 4 are installed on the front of the current tripper 1 from bottom to top, a support plate 5 and a limit plate 6 are fixedly connected to the back of the current tripper 1 from top to bottom, a limit column 7 is inserted into the interior of the support plate 5, one end of the limit column 7 is fixedly connected to a wedge block 8, and the limit column 7 and the wedge block 8 are connected by a support spring 9.

[0025] During specific use, through the coordinated setting between the current release 1, switch 2, counter 3 and button 4, when the current release 1 trips, the switch 2 will apply pressure to the button 4, which will increase the count of the counter 3. The user can compare the number of trips of the counter 3 with the rated number of uses to know the usage status of the current release 1 in advance, so as to facilitate early replacement and effectively reduce the probability of safety accidents.

[0026] In this embodiment, a circular baffle 10 is fixedly connected to one end of the limiting column 7 away from the wedge block 8 .

[0027] During specific use, the circular baffle 10 can effectively prevent the limiting column 7 from being separated from the inside of the support plate 5.

[0028] In this embodiment, there are two wedge blocks 8 , and the back surfaces of the two wedge blocks 8 are fixedly connected with an L-shaped gusset plate 11 .

[0029] During specific use, through the coordination between the support plate 5, the limit plate 6, the limit column 7, the wedge block 8, the support spring 9, the circular baffle 10, the L-shaped buckle plate 11, the guide column 12 and the triangular push block 13, when the current release 1 needs to be installed, the staff only needs to press the push handle block 15 to make the guide column 12 drive the triangular push block 13 to move, so that the distance between the two triangular push blocks 13 becomes wider. After placing it on the mounting frame, the staff removes the pressure on the push handle block 15. Under the action of the support spring 9, the distance between the two L-shaped buckle plates 11 becomes smaller and can be buckled on the mounting frame. The installation is simple and convenient, saving time and effort.

[0030] In this embodiment, a guide post 12 is inserted into the interior of the limiting plate 6 , and a triangular push block 13 is fixedly connected to one end of the guide post 12 .

[0031] During specific use, the arrangement of the guide column 12 and the triangular push block 13 facilitates the control of the movement of the triangular push block 13 .

[0032] In this embodiment, the triangular push block 13 is connected to the limiting plate 6 via a return spring 14 , and the normal state of the return spring 14 is a compressed state.

[0033] During specific use, the reset spring 14 is provided to facilitate the reset of the triangular push block 13 .

[0034] In this embodiment, one end of the guide column 12 away from the triangular push block 13 is fixedly connected to the push handle block 15 , and the counter 3 and the button 4 are electrically connected via a wire.

[0035] During specific use, the push handle block 15 is provided to facilitate the operator to control the movement of the guide column 12 .

[0036] Working principle: When the current release 1 needs to be installed, the staff only needs to press the push handle block 15 to make the guide column 12 drive the triangular push block 13 to move, so that the distance between the two triangular push blocks 13 becomes wider. After placing it on the mounting frame, the staff removes the pressure on the push handle block 15. Under the action of the support spring 9, the distance between the two L-shaped buckle plates 11 becomes smaller and can be buckled on the mounting frame. When the current release 1 trips, the switch 2 will apply pressure to the button 4, which will increase the count of the counter 3. The user can compare the number of trips of the counter 3 with the rated number of uses to know the usage status of the current release 1 in advance, so as to replace it in advance.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A power short-circuit protection device, comprising a current release (1), characterized in that: The current tripper (1) is provided with a switch (2) inside, a counter (3) and a button (4) are sequentially installed on the front of the current tripper (1) from bottom to top, a support plate (5) and a limit plate (6) are sequentially fixedly connected on the back of the current tripper (1) from top to bottom, a limit column (7) is inserted into the interior of the support plate (5), one end of the limit column (7) is fixedly connected to a wedge block (8), and the limit column (7) and the wedge block (8) are connected via a support spring (9).

2. The power short circuit protection device according to claim 1, characterized in that: One end of the limiting column (7) away from the wedge block (8) is fixedly connected to a circular baffle (10).

3. The power short circuit protection device according to claim 1, characterized in that: There are two wedge-shaped blocks (8), and the back surfaces of the two wedge-shaped blocks (8) are fixedly connected with an L-shaped gusset plate (11).

4. The power short circuit protection device according to claim 1, characterized in that: A guide column (12) is inserted into the interior of the limiting plate (6), and one end of the guide column (12) is fixedly connected to a triangular push block (13).

5. The power short circuit protection device according to claim 4, characterized in that: The triangular push block (13) and the limit plate (6) are connected via a return spring (14), and the normal state of the return spring (14) is a compressed state.

6. The power short circuit protection device according to claim 4, characterized in that: One end of the guide column (12) away from the triangular push block (13) is fixedly connected to a push handle block (15).

7. The power short circuit protection device according to claim 1, characterized in that: The counter (3) and the button (4) are electrically connected via a wire.

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