Circuit breaker electrifying mechanism

Abstract

The utility model discloses a breaker electrifying mechanism, which comprises a vertical plate, one side of the plate surface of the vertical plate is horizontally provided with a placing plate, the vertical plate is slidably connected with a mounting plate and a driving piece for driving the mounting plate to lift, the mounting plate is provided with an elastic abutting assembly matched with a breaker, and the elastic abutting assembly is provided with a clamping groove. The elastic abutting assembly comprises insulating plates connected with the mounting plate, the number of the insulating plates is consistent with that of wiring ports of the circuit breaker, the width of each insulating plate is smaller than that of the wiring ports of the circuit breaker, the insulating plates are in threaded connection with ball screws, screw bodies of the ball screws are connected with wires, and the wires are connected with the mounting plate. A ball of the ball screw abuts against a wiring board of the circuit breaker. The device can be accurately contacted with the bolt fixing surface of the circuit breaker wiring board, the detection preciseness is ensured, the area of the bolt fixing surface is far larger than that of the upper end surface of the wiring board, the risk of poor contact caused by deviation is reduced, and the detection stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker detection technology, specifically to a circuit breaker energizing mechanism. Background Technology

[0002] A circuit breaker is a commonly used electrical device used to promptly interrupt the current in a circuit when a fault such as a short circuit or overload occurs, thereby preventing accidents. Quality control during the circuit breaker manufacturing process is a crucial aspect of ensuring product quality and reliability. To ensure that every circuit breaker leaving the factory meets design standards and safety specifications, manufacturers typically implement rigorous quality control procedures, including online testing, in-process inspection, routine inspection, and factory acceptance testing. During the factory acceptance testing phase, the circuit breaker (such as a residual current circuit breaker) needs to be energized for a period of time, during which manual checks are performed, including closing tests, display and indicator light checks, and function key response tests.

[0003] When performing energization testing, the existing testing equipment's energization mechanism requires the circuit breaker to be placed vertically in the testing position, and the conductive parts to be brought into contact with the upper end face 14 of the circuit breaker's terminal block via a lifting horizontal plate (see...). Figure 3 , Figure 3 (A schematic diagram of a circuit breaker in the prior art) is made to energize the circuit breaker by contact, and then the tester inspects the circuit breaker. Although this method can energize the circuit breaker, the contact surface between the conductive part and the circuit breaker terminal block is not the bolt fixing surface 15 used in actual use. Even if the product passes the test, if the test method itself is flawed, the product may malfunction in actual use, posing a safety hazard to the user. Furthermore, the area of ​​the upper surface 14 of the terminal block is much smaller than the bolt fixing surface 15, which means that the conductive part must be aligned with this area very precisely. Any slight positional deviation may lead to poor contact or partial contact, thus affecting the stability of the test. Utility Model Content

[0004] The purpose of this utility model is to provide a circuit breaker energizing mechanism that can accurately contact the bolt fixing surface of the circuit breaker terminal block when energized, ensuring the rigor of the test. Moreover, the area of ​​the bolt fixing surface is much larger than the upper end surface of the terminal block, reducing the risk of poor contact due to deviation and improving the stability of the test.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a circuit breaker energizing mechanism, including a vertical plate, a placement plate horizontally provided on one side of the vertical plate, an mounting plate and a driving component for driving the mounting plate to rise and fall are slidably connected on the vertical plate, the mounting plate is provided with an elastic abutment component that cooperates with the circuit breaker, the elastic abutment component includes an insulating plate connected to the mounting plate, the number of insulating plates is consistent with the number of terminals of the circuit breaker and the width of each insulating plate is smaller than the width of the terminal of the circuit breaker, a ball screw is threadedly connected to the insulating plate, a wire is connected to the screw body of the ball screw, and the ball of the ball screw abuts against the terminal plate of the circuit breaker.

[0006] A further improvement of this utility model is that two slide rails are symmetrically arranged on the upright plate, and slide blocks are slidably connected on the slide rails. The mounting plate is fixed on the two slide blocks, and the driving component is a cylinder arranged on one side of the slide rails. The telescopic end of the cylinder is connected to the mounting plate.

[0007] A further improvement of this utility model is that the mounting plate is provided with at least two sets of elastic abutment components.

[0008] A further improvement of this utility model is that a number of partitions are spaced apart on the upright plate, and the partitions cooperate with the placement plate to divide the placement plate into multiple placement positions, and the spacing between adjacent partitions is adapted to the width of the circuit breaker.

[0009] A further improvement of this utility model is that the width between two adjacent partitions is greater than the width of the circuit breaker, and a positioning block is provided on the opposite side of the two adjacent partitions, with the spacing between the two positioning blocks being adapted to the width of the circuit breaker.

[0010] A further improvement of this utility model is that the mounting plate has a first hole in the horizontal direction, and the insulating plate is fixed to the mounting plate by bolts passing through the first hole.

[0011] A further improvement of this utility model is that a second hole is provided horizontally on the upright plate, and the partition is fixed to the upright plate by bolts passing through the second hole.

[0012] A further improvement of this utility model is that the ball screw is threaded with an anti-loosening nut, and a terminal block of one end of a wire is clamped and fixed between the anti-loosening nut and the insulating plate.

[0013] A further improvement of this utility model is that a reinforcing plate is provided between the lower end of the placement plate and the surface of the upright plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention can accurately contact the bolt fixing surface of the circuit breaker terminal block when energized, ensuring the rigor of the test. Moreover, the area of ​​the bolt fixing surface is much larger than the upper end surface of the terminal block, reducing the risk of poor contact due to deviation and improving the stability of the test.

[0016] This invention utilizes ball screws, taking advantage of the characteristic that the balls of the ball screws slightly extend or retract under the action of spring force. This can replace a set of cylinders used to drive the mounting plate to approach or move away from the circuit breaker, saving costs and reducing failures. Furthermore, when the drive unit drives the mounting plate to descend, the balls can effectively abut against the circuit breaker terminal block under the action of the spring, improving the stability of the contact.

[0017] This invention utilizes ball screws, which reduce friction between the balls of the ball screws and the circuit breaker terminal block during the descent of the mounting plate, thereby reducing scratches on the circuit breaker terminal block and minimizing the impact on the appearance of the circuit breaker.

[0018] In this utility model, the ball screw is threaded onto the insulating plate, and the distance between it and the circuit breaker can be adjusted as needed, offering high flexibility. Furthermore, both the insulating plate and the partition are connected to the vertical plate through slots, allowing for flexible adjustment to accommodate different specifications of circuit breakers and improving the applicability of this device.

[0019] In this invention, multiple sets of elastic contact components can be set as needed, enabling multiple circuit breakers to be energized at once, thus improving testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a side view sectional diagram of the structure of this utility model.

[0022] Figure 3 This is a schematic diagram of a circuit breaker structure in the prior art.

[0023] In the diagram, 1-Upright plate, 2-Placement plate, 3-Mounting plate, 4-Insulating plate, 5-Ball screw, 6-Slide rail, 7-Slide seat, 8-Partition plate, 9-Positioning block, 10-First hole, 11-Second hole, 12-Anti-loosening nut, 13-Reinforcing plate, 14-Upper end face of terminal block, 15-Bolt fixing surface of terminal block, 16-Circuit breaker, 17-Cylinder. Detailed Implementation

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

[0025] Example 1: Combination Figures 1-3It is known that a circuit breaker energizing mechanism includes a vertical plate 1, a placement plate 2 is horizontally provided on one side of the vertical plate 1, an mounting plate 3 and a driving component for driving the mounting plate 3 to rise and fall are slidably connected on the vertical plate 1, the mounting plate 3 is provided with an elastic abutment component that cooperates with the circuit breaker, the elastic abutment component includes an insulating plate 4 connected to the mounting plate 3, the number of insulating plates 4 is consistent with the number of wiring ports of the circuit breaker and the width of each insulating plate 4 is smaller than the width of the wiring port of the circuit breaker (to facilitate insertion into the wiring port of the circuit breaker), a ball screw 5 is threadedly connected to the insulating plate 4, a wire is connected to the screw body of the ball screw 5, and the ball of the ball screw 5 abuts against the wiring plate of the circuit breaker.

[0026] Two slide rails 6 are symmetrically arranged on the upright plate 1. Slide seats 7 are slidably connected to the slide rails 6. The mounting plate 3 is fixed on the two slide seats 7. The driving component is a cylinder 17 located on one side of the slide rails 6. The telescopic end of the cylinder 17 is connected to the mounting plate 3. Preferably, there are two cylinders 17.

[0027] The mounting plate 3 is provided with at least two sets of elastic abutment components. Preferably, the mounting plate 3 is provided with four sets of elastic abutment components, which can perform energization tests on four circuit breakers at a time.

[0028] The upright plate 1 is provided with several partitions 8 at intervals. The partitions 8 cooperate with the placement plate 2 to divide the placement plate 2 into multiple placement positions. The spacing between adjacent partitions 8 is adapted to the width of the circuit breaker.

[0029] The width between two adjacent partitions 8 is greater than the width of the circuit breaker. Positioning blocks 9 are provided on opposite sides of the two adjacent partitions 8, and the spacing between the two positioning blocks 9 is adapted to the width of the circuit breaker. When positioning the circuit breaker using the two partitions 8, the partitions 8 will have a large contact area with the circuit breaker, which can cause scratches on both sides of the circuit breaker and make it difficult to handle. Positioning with smaller positioning blocks 9 effectively reduces the contact area with the circuit breaker, thereby reducing scratches and facilitating handling.

[0030] The mounting plate 3 has a first horizontal hole 10, and the insulating plate 4 is fixed to the mounting plate 3 by bolts passing through the first hole 10. The vertical plate 1 has a second horizontal hole 11, and the partition plate 8 is fixed to the vertical plate 1 by bolts passing through the second hole 11. This allows for easy adjustment.

[0031] The insulating plate 4 is threaded with a ball screw 5, and the position of the ball screw 5 can be flexibly adjusted so that the distance between the ball of the ball screw 5 and the upright plate 1 under normal conditions is slightly smaller than the distance between the bolt fixing surface 15 of the terminal block and the upright plate 1 after the circuit breaker is placed in place. This distance difference should be within the range that the ball of the ball screw 5 can extend and retract (preferably within 5mm). When the mounting plate 3 is lowered, the ball first contacts the upper surface 14 of the terminal block of the circuit breaker. Under compression, the spring inside the ball screw 5 retracts, and the ball abuts against the bolt fixing surface 15 of the terminal block.

[0032] A lock nut 12 is threaded onto the ball screw 5. A terminal block of one end of a wire is clamped and fixed between the lock nut 12 and the insulating plate 4. The ball screw is a conventional ball screw in the prior art (also called a ball screw or spring ball screw), which includes a screw body with external threads, a spring located in the screw body, and a ball that abuts against the spring and partially protrudes from the housing. This utility model does not involve any improvement thereto.

[0033] A reinforcing plate 13 is provided between the lower end of the placement plate 2 and the surface of the upright plate 1. This further improves the load-bearing capacity of the placement plate 2.

[0034] The working principle of the circuit breaker energizing mechanism provided by the utility model is as follows: In use, the circuit breaker 16 is placed between two partition plates 8. The back of the circuit breaker 16 contacts the upright plate 1, and the two sides contact the two positioning blocks 9 to complete the positioning. The cylinder 17 is activated to lower the mounting plate 3. The ball of the ball screw 5 first contacts the upper surface 14 of the terminal block of the circuit breaker 16. Under the pressure, the spring inside the ball screw 5 retracts, and the ball abuts against the bolt fixing surface 15 of the terminal block of the circuit breaker. Then, the ball screw 5 can be energized through the wire, thereby realizing the energization of the circuit breaker.

[0035] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An energizing mechanism for a circuit breaker, characterized by: The utility model provides a circuit breaker installation device, including vertical board (1), the board surface one side of vertical board (1) is horizontally provided with and places board (2), the vertical board (1) is slidably connected with mounting plate (3) and the drive piece of drive mounting plate (3) lifts, the mounting plate (3) is equipped with the elastic abutment component that cooperates with circuit breaker, the elastic abutment component includes the insulating plate (4) that is connected with mounting plate (3), the number of insulating plate (4) is consistent with the wiring port number of circuit breaker and the width of each insulating plate (4) is less than the wiring port width of circuit breaker, the insulating plate (4) is threadedly connected with wave bead screw (5), the screw body of wave bead screw (5) is connected with wire, and the ball of wave bead screw (5) is in abutment with the wiring board of circuit breaker.

2. The power on mechanism of claim 1, wherein: Two slide rails (6) are symmetrically arranged on the vertical board (1), and the slide rails (6) are slidably connected with slide seats (7), the mounting plate (3) is fixed on the two slide seats (7), and the drive piece is a cylinder (17) arranged on one side of the slide rail (6), and the extension end of the cylinder (17) is connected with the mounting plate (3).

3. The power on mechanism of claim 1, wherein: The mounting plate (3) is provided with at least two groups of elastic abutment components.

4. The power on mechanism of claim 3, wherein: A plurality of partition plates (8) are arranged on the vertical board (1) at intervals, the partition plates (8) cooperate with the placing plate (2) to divide the placing plate (2) into a plurality of placing positions, the distance between adjacent partition plates (8) is adapted to the width of the circuit breaker.

5. The power on mechanism of claim 4, wherein: The width between the adjacent two partition plates (8) is greater than the width of the circuit breaker, and the opposite side of the adjacent two partition plates (8) is provided with a positioning block (9), and the distance between the two positioning blocks (9) is adapted to the width of the circuit breaker.

6. The circuit breaker energizing mechanism of claim 1, wherein: A first hole (10) is horizontally arranged on the mounting plate (3), and the insulating plate (4) is fixed on the mounting plate (3) by a bolt passing through the first hole (10).

7. The power on mechanism of claim 4, wherein: A second hole (11) is horizontally arranged on the vertical board (1), and the partition plate (8) is fixed on the vertical board (1) by a bolt passing through the second hole (11).

8. The circuit breaker energizing mechanism of claim 1, wherein: A lock nut (12) is threadedly connected to the wave bead screw (5), and a wire terminal is clamped and fixed between the lock nut (12) and the insulating plate (4).

9. The circuit breaker energizing mechanism of claim 1, wherein: A reinforcing plate (13) is arranged between the lower end of the placing plate (2) and the board surface of the vertical board (1).

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