A kind of plastic case circuit breaker wiring structure

Abstract

The utility model discloses a plastic -clad circuit breaker technical field's a plastic -clad circuit breaker wiring structure, including circuit breaker body, both sides of circuit breaker body all are provided with wiring end, is provided with wiring slot on the wiring end, the inner wall fixed mounting of wiring slot has wiring board, the one end of wiring board extends to circuit breaker body inside, the fixedly connected with guide rod between the inner wall of both sides of wiring slot, both sides of guide rod outer surface all movably sleeve joint has the clamping block. The utility model discloses through setting clamping block, pressing plate and drive assembly, when wiring, the exposed cable head is passed through the bottom of pressing plate to staff, and is inserted to between two clamping blocks, then can through drive assembly make two clamping blocks move to each other, can thus hold and fix cable head, and can make pressing plate move downward through drive assembly, further press down cable head on wiring board, convenient operation, save time and effort, has promoted the wiring efficiency of staff.

Description

Technical Field

[0001] This utility model relates to the field of molded case circuit breaker technology, and in particular to a wiring structure for a molded case circuit breaker. Background Technology

[0002] Molded case circuit breakers, also known as modular circuit breakers, are electrical devices that automatically cut off current when the current exceeds the trip setting. The term "molded case" refers to the use of plastic insulators as the outer shell of the device, with all parts sealed within the plastic shell. The plastic shell is used to isolate conductors from grounded metal parts. Molded case circuit breakers typically contain a thermomagnetic trip unit, while larger models are equipped with solid-state trip sensors.

[0003] However, existing technologies have some problems: when installing and using existing molded case circuit breakers, workers need to connect external cables to the circuit breaker. However, when connecting cables to existing molded case circuit breakers, workers usually fix the cable ends to the circuit breaker's terminal block by tightening bolts. This not only requires tools but also requires tightening multiple bolts to lock and fix multiple cables one by one, which is cumbersome and reduces the efficiency of wiring. Therefore, we propose a wiring structure for molded case circuit breakers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wiring structure for a molded case circuit breaker. By setting up clamping blocks, pressure plates, and drive components, the cable can be quickly locked and fixed, improving wiring efficiency.

[0005] The purpose of this utility model is achieved as follows: A wiring structure for a molded case circuit breaker includes a circuit breaker body, with terminals on both sides of the circuit breaker body. Each terminal has a wiring groove, and a wiring plate is fixedly installed on the inner wall of the wiring groove. One end of the wiring plate extends into the circuit breaker body. A guide rod is fixedly connected between the inner walls on both sides of the wiring groove. Clamping blocks are movably sleeved on both sides of the outer surface of the guide rod. A pressure plate is movably installed inside the wiring groove. The clamping blocks, pressure plate, and terminals are all connected through a drive assembly. The clamping blocks and pressure plate can clamp and fix the cables through the drive assembly.

[0006] Optionally, the drive assembly includes a square plate, which is fixedly installed on the inner wall of the wiring groove. A vertical plate is movably inserted into the square plate, and a horizontal plate is fixedly connected to the bottom of the vertical plate. An inclined groove is provided on the clamping block, and a round block located inside the inclined groove is fixedly installed on the horizontal plate.

[0007] Optionally, a round pin is movably inserted into the horizontal plate, the bottom end of the round pin is fixedly connected to the pressure plate, the top of the round pin is fixedly connected to the round plate, and a second spring is movably sleeved on the outer surface of the round pin, with the two ends of the second spring respectively fixedly connected to the horizontal plate and the round plate.

[0008] Optionally, a limiting plate is fixedly installed on the top of the square plate, the limiting plate has a through hole, and a pin is movably inserted into the vertical plate, the pin being adapted to the diameter of the through hole.

[0009] Optionally, a pull handle is fixedly installed on the pin, and a first spring is movably sleeved on the outer surface of the pin, with the two ends of the first spring fixedly connected to the vertical plate and the pull handle, respectively.

[0010] Optionally, the circular block is slidably connected inside the inclined groove, the inner wall of which is coated with a lubricating layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up clamping blocks, pressure plates, and driving components, allows workers to pass the exposed cable end through the bottom of the pressure plate and insert it between the two clamping blocks during wiring. The driving component can then move the two clamping blocks towards each other to clamp and fix the cable end. The driving component can also move the pressure plate downward to press the cable end down onto the wiring plate. This operation is convenient, time-saving, labor-saving, and improves the wiring efficiency of workers. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram provided by this utility model.

[0014] Figure 2 This is a side view of the structure provided by this utility model.

[0015] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the wiring groove provided by this utility model.

[0016] Figure 4 This is a schematic diagram of the disassembled structure of the inclined groove and the circular block provided by this utility model.

[0017] Figure 5 This is a schematic diagram of the side cross-sectional structure of the square plate provided by this utility model.

[0018] In the diagram: 1. Circuit breaker body; 2. Terminal block; 3. Wiring groove; 4. Terminal block; 5. Guide rod; 6. Clamping block; 7. Pressure plate; 8. Square plate; 9. Vertical plate; 10. Horizontal plate; 11. Inclined groove; 12. Round block; 13. Round pin; 14. First spring; 15. Round plate; 16. Second spring; 17. Limiting plate; 18. Through hole; 19. Pin; 20. Pull handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown in the figure, the present invention provides a wiring structure for a molded case circuit breaker, including a circuit breaker body 1. Terminals 2 are provided on both sides of the circuit breaker body 1. A wiring groove 3 is provided on each terminal 2. A wiring plate 4 is fixedly installed on the inner wall of the wiring groove 3. One end of the wiring plate 4 extends into the interior of the circuit breaker body 1. A guide rod 5 is fixedly connected between the inner walls on both sides of the wiring groove 3. Clamping blocks 6 are movably sleeved on both sides of the outer surface of the guide rod 5. A pressure plate 7 is movably installed inside the wiring groove 3. The clamping blocks 6, the pressure plate 7, and the terminal 2 are all connected via a drive assembly. The clamping blocks 6 and the pressure plate 7 can clamp and fix the cable via the drive assembly.

[0021] When wiring, the worker passes the exposed cable end through the bottom of the pressure plate 7 and inserts it between the two clamps 6. Then, the two clamps 6 can be moved towards each other by the drive component, thereby clamping and fixing the cable end. The pressure plate 7 can also be moved downward by the drive component, further pressing the cable end down onto the terminal block 4, thereby improving the fixing effect of the cable. The operation is convenient, time-saving and labor-saving.

[0022] Furthermore, the drive assembly includes a square plate 8, which is fixedly installed on the inner wall of the wiring groove 3. A vertical plate 9 is movably inserted into the square plate 8, and a horizontal plate 10 is fixedly connected to the bottom of the vertical plate 9. An inclined groove 11 is provided on the clamping block 6, and a round block 12 located inside the inclined groove 11 is fixedly installed on the horizontal plate 10.

[0023] When the staff presses down on the vertical plate 9, the horizontal plate 10 causes the circular block 12 to move downward, thereby causing the surface of the circular block 12 to press against the inner wall of the inclined groove 11, which in turn causes the two clamping blocks 6 to move towards each other, thereby achieving the clamping and fixing effect on the cable head between the two clamping blocks 6, and realizing the wiring operation.

[0024] Furthermore, a round pin 13 is movably inserted into the horizontal plate 10. The bottom end of the round pin 13 is fixedly connected to the pressure plate 7, and the top of the round pin 13 is fixedly connected to the round plate 15. A second spring 16 is movably sleeved on the outer surface of the round pin 13, and the two ends of the second spring 16 are respectively fixedly connected to the horizontal plate 10 and the round plate 15.

[0025] By setting the second spring 16 to its normal state, when the operator presses down the vertical plate 9, the horizontal plate 10 will cause the pressure plate 7 to move and squeeze the cable onto the terminal block 4. As the vertical plate 9 continues to move downward, the horizontal plate 10 will move closer to the pressure plate 7, thereby stretching the second spring 16. Due to the elastic force of the second spring 16, the pressure plate 7 will tend to move downward, thus squeezing the cable onto the terminal block 4, further fixing the cable and improving the stability of the wiring.

[0026] Furthermore, a limiting plate 17 is fixedly installed on the top of the square plate 8. A through hole 18 is provided on the limiting plate 17, and a pin 19 is movably inserted into the vertical plate 9. The diameter of the pin 19 is matched with that of the through hole 18.

[0027] After the staff presses down the vertical plate 9 to fix the cable, they can insert the pin 19 into the through hole 18 to limit the vertical plate 9, so that the clamping block 6 and the pressure plate 7 can maintain the clamping and limiting effect on the cable.

[0028] Furthermore, a pull handle 20 is fixedly installed on the pin 19, and a first spring 14 is movably sleeved on the outer surface of the pin 19. The two ends of the first spring 14 are respectively fixedly connected to the vertical plate 9 and the pull handle 20.

[0029] By setting the first spring 14 to a stretched state, due to the restoring effect of the elastic force of the first spring 14, the pin 19 will tend to move closer to the limiting plate 17. Thus, when the vertical plate 9 moves downward and causes the pin 19 to move to the through hole 18, the pin 19 can automatically insert into the through hole 18 under the action of the first spring 14 and remain stable, thereby ensuring a stable clamping effect on the cable.

[0030] Furthermore, the circular block 12 is slidably connected inside the inclined groove 11, and the inner wall of the inclined groove 11 is coated with a lubricating layer.

[0031] By coating the inner wall of the inclined groove 11 with a lubricating layer, the circular block 12 can slide more smoothly inside the inclined groove 11.

[0032] Working principle and usage process of this utility model: During wiring, the worker passes the exposed cable end through the bottom of the pressure plate 7 and inserts it between the two clamping blocks 6. Then, pressing down on the vertical plate 9 causes the horizontal plate 10 to move the circular block 12 downwards. This causes the surface of the circular block 12 to press against the inner wall of the inclined groove 11, which in turn causes the two clamping blocks 6 to move towards each other, thus clamping and fixing the cable end between the two clamping blocks 6. When the worker presses down on the vertical plate 9, the horizontal plate 10 moves the pressure plate 7, pressing the cable onto the connector plate 4. As the vertical plate 9 continues to move downwards... This will cause the horizontal plate 10 to move closer to the pressure plate 7, thereby stretching the second spring 16. Due to the elastic force of the second spring 16, the pressure plate 7 will tend to move downward, thus pressing the cable onto the terminal block 4, further improving the cable fixing effect. When the vertical plate 9 moves downward and the pin 19 moves to the through hole 18, the pin 19 can automatically insert into the through hole 18 under the action of the first spring 14 and remain stable, thereby ensuring a stable clamping effect on the cable. The operation is convenient, time-saving and labor-saving.

[0033] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A wiring structure for a molded case circuit breaker, comprising a circuit breaker body (1), wherein terminals (2) are provided on both sides of the circuit breaker body (1), and wiring grooves (3) are provided on the terminals (2), wherein a wiring plate (4) is fixedly installed on the inner wall of the wiring grooves (3), and one end of the wiring plate (4) extends into the interior of the circuit breaker body (1), characterized in that: A guide rod (5) is fixedly connected between the inner walls on both sides of the wiring groove (3). A clamping block (6) is movably sleeved on both sides of the outer surface of the guide rod (5). A pressure plate (7) is movably installed inside the wiring groove (3). The clamping block (6), the pressure plate (7) and the wiring terminal (2) are all connected through a drive assembly. The clamping block (6) and the pressure plate (7) can clamp and fix the cable through the drive assembly.

2. The wiring structure of a molded case circuit breaker according to claim 1, characterized in that: The drive assembly includes a square plate (8), which is fixedly installed on the inner wall of the wiring groove (3). A vertical plate (9) is movably inserted into the square plate (8), and a horizontal plate (10) is fixedly connected to the bottom of the vertical plate (9). An inclined groove (11) is opened on the clamping block (6), and a round block (12) located inside the inclined groove (11) is fixedly installed on the horizontal plate (10).

3. The wiring structure of a molded case circuit breaker according to claim 2, characterized in that: A round pin (13) is movably inserted into the horizontal plate (10). The bottom end of the round pin (13) is fixedly connected to the pressure plate (7). A round plate (15) is fixedly connected to the top of the round pin (13). A second spring (16) is movably sleeved on the outer surface of the round pin (13). The two ends of the second spring (16) are fixedly connected to the horizontal plate (10) and the round plate (15) respectively.

4. The wiring structure of a molded case circuit breaker according to claim 2, characterized in that: A limiting plate (17) is fixedly installed on the top of the square plate (8). A through hole (18) is provided on the limiting plate (17). A pin (19) is movably inserted into the vertical plate (9). The diameter of the pin (19) is matched with that of the through hole (18).

5. The wiring structure of a molded case circuit breaker according to claim 4, characterized in that: A pull handle (20) is fixedly installed on the pin (19), and a first spring (14) is movably sleeved on the outer surface of the pin (19). The two ends of the first spring (14) are respectively fixedly connected to the vertical plate (9) and the pull handle (20).

6. The wiring structure of a molded case circuit breaker according to claim 2, characterized in that: The circular block (12) is slidably connected inside the inclined groove (11), the inner wall of which is coated with a lubricating layer.

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