Circuit breaker with more stable test button

By introducing a structure in which the test switch, coil bobbin, and positioning block cooperate in the circuit breaker, the problem of unstable test button was solved, and more stable circuit breaker operation was achieved.

CN223785108UActive Publication Date: 2026-01-09YUEQING JINLONG ELECTRONICS INDAL
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Patent Information

Application Number
CN202520178842.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-27
Publication Date
2026-01-09
Estimated Expiration
2035-01-27

AI Technical Summary

Technical Problem

The existing circuit breaker's test button structure is not stable enough, the elastic sheet is not installed stably, and the button's force is not perpendicular, making it easy to get stuck.

Method used

The test switch is connected to the coil frame. Stability is enhanced by the cooperation of pins and slots, positioning blocks and positioning grooves. The cross-sectional area is enlarged by the button sleeve to facilitate pressing.

Benefits of technology

This improved the stability and reliability of the test button, avoided the problem of button jamming, and enhanced the operational stability of the circuit breaker.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223785108U_ABST
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Abstract

The utility model relates to a circuit breaker with a more stable test button, which comprises a base, a top cover, an operation assembly, a circuit board, an electromagnetic coil, a coil framework and a test switch, the electromagnetic coil is connected with the coil framework, and the test switch is connected with the coil framework. A switch hole matched with the test switch is formed in the position, corresponding to the test switch, of the top cover, and pins are arranged on the two sides of the bottom of the test switch respectively. The utility model provides a circuit breaker with a more stable test button.
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Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and more specifically, to a circuit breaker with a more stable test button. Background Technology

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and capable of closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their application range. The boundary between high and low voltage is somewhat blurred; generally, circuit breakers above 3kV are referred to as high-voltage electrical appliances.

[0003] Circuit breakers typically have a test button to test their circuit-breaking function. Existing circuit breakers usually have a spring plate inserted into the top of the circuit board, and a button that slides on the top of the housing rests on the spring plate. Pressing the button bends the spring plate, triggering the circuit breaking effect. However, this structure makes the spring plate installation unstable, and the button's fixation also relies on the elasticity of the spring plate. The force exerted by the spring plate on the button is not perpendicular to the button, and the direction of the force changes continuously with deformation. As a result, the button is not stable when pressed and may even get stuck. Utility Model Content

[0004] In summary, to overcome the shortcomings of the existing technology, this utility model provides a circuit breaker with a more stable test button.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit breaker with a more stable test button, comprising a base, a top cover, an operating component, a circuit board, an electromagnetic coil and a coil frame, wherein the electromagnetic coil is connected to the coil frame, and a test switch is also included, wherein the test switch is connected to the coil frame, the top cover is provided with a switch hole corresponding to the position of the test switch, and the bottom of the test switch is provided with pins on both sides.

[0006] With this setup, the pins at the bottom of the test switch will connect to the circuit, and the circuit breaker will control the test through this electrical component, which is more stable than the original elastic sheet. During installation, the test switch is mounted on the pre-installed coil frame, which is structurally stable. The coil frame itself is just a mounting frame and has no electrical structure. It can be drilled and processed at will to connect the test switch, making the connection more stable. The pins can also clamp the coil frame from both sides to enhance stability.

[0007] Furthermore, the coil frame is provided with a switch slot adapted to the test switch.

[0008] With this setup, the test switch will be installed in the switch slot, making it more stable.

[0009] Furthermore, the sidewall of the coil frame is provided with a slot that matches the position of the pin.

[0010] With this configuration, the pins will be inserted into the slots, resulting in a more stable connection.

[0011] Furthermore, the coil frame has a positioning block on the side facing the test switch, and the test switch has a positioning groove that matches the position of the positioning block.

[0012] With this configuration, after the test switch is installed, the positioning block on the coil frame will be located in the positioning groove on the test switch, further enhancing the stability of the test switch after installation.

[0013] Furthermore, both the positioning block and the positioning slot are provided in twos.

[0014] With this configuration, the two positioning blocks and the positioning slot work together more stably.

[0015] Furthermore, the two positioning slots on the test switch are located on both sides and penetrate the side walls of the switch.

[0016] This design removes the width limitation of the positioning groove, so even if there are errors in the manufacturing process, it will not affect the installation.

[0017] Furthermore, a mounting block is provided on the side of the coil frame facing the operating component, and the test switch is connected to the mounting block at the location of the mounting block.

[0018] With this configuration, the mounting block can adjust the position of the test switch to the middle position of the circuit breaker, and also prevent the test switch from affecting the electromagnetic coil.

[0019] Furthermore, the top of the test switch is fitted with a button sleeve whose outer diameter matches the switch hole, and the bottom of the button sleeve is provided with an outer mounting ring whose outer diameter is larger than the switch hole.

[0020] This design increases the cross-sectional area of ​​the button by enlarging the button sleeve, making it easier for users to press and test the switch, while the installation of the outer ring prevents the button sleeve from falling off, ensuring structural stability. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0022] Figure 2 This is a partial exploded view of an embodiment of the present utility model.

[0023] Figure 3 for Figure 2 Enlarged view of part A.

[0024] Figure 4This is a schematic diagram of the topless structure of an embodiment of the present utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the test switch according to an embodiment of the present invention.

[0026] The labels in the diagram mean: 1. Base, 2. Top cover, 201. Switch hole, 3. Operating component, 4. Circuit board, 5. Electromagnetic coil, 6. Coil frame, 601. Switch slot, 602. Slot, 603. Positioning block, 604. Mounting block, 7. Test switch, 701. Pin, 702. Positioning slot, 703. Button sleeve, 7031. Mounting outer ring. Detailed Implementation

[0027] This specific embodiment is merely an explanation of the present embodiment and is not intended to limit the present embodiment. After reading this specification, those skilled in the art can make modifications to the present embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present embodiment.

[0028] Referring to the accompanying drawings, this utility model provides the following technical solution: a circuit breaker with a more stable test button, including a base 1, a top cover 2, an operating component 3, a circuit board 4, an electromagnetic coil 5 and a coil frame 6, wherein the electromagnetic coil 5 is connected to the coil frame 6, and also includes a test switch 7, wherein the test switch 7 is connected to the coil frame 6, the top cover 2 is provided with a switch hole 201 corresponding to the position of the test switch 7, and the test switch 7 is provided with pins 701 on both sides of its bottom.

[0029] With this configuration, the pin 701 at the bottom of the test switch 7 will connect the circuit. The circuit breaker controls the test through this electrical component, the test switch 7, which is more stable than the original elastic sheet. During installation, the test switch 7 is mounted on the already fixed coil frame 6, which is structurally stable. The coil frame 6 itself is just a mounting frame and has no electrical structure. It can be drilled and processed at will to connect the test switch 7, making the connection more stable. The pin 701 can also clamp the coil frame 6 from both sides to enhance stability.

[0030] In a preferred embodiment, the coil frame 6 is provided with a switch slot 601 adapted to the test switch 7.

[0031] With this setup, the test switch 7 will be installed in the switch slot 601, making it more stable.

[0032] In this preferred embodiment, the side wall of the coil frame 6 is provided with a slot 602 that matches the position of the pin 701.

[0033] With this configuration, pin 701 will be inserted into slot 602, resulting in a more stable connection between the two.

[0034] In a preferred embodiment, the coil frame 6 is provided with a positioning block 603 on the side facing the test switch 7, and the test switch 7 is provided with a positioning groove 702 that matches the position of the positioning block 603.

[0035] With this configuration, after the test switch 7 is installed, the positioning block 603 on the coil frame 6 will be located in the positioning groove 702 on the test switch 7, further enhancing the stability of the test switch 7 after installation.

[0036] In this preferred embodiment, both the positioning block 603 and the positioning groove 702 are provided in twos.

[0037] With this configuration, the two positioning blocks 603 and the positioning groove 702 work together to achieve greater stability.

[0038] In this preferred embodiment, the two positioning slots 702 on the test switch 7 are located on both sides and penetrate the side walls of the switch.

[0039] This design removes the width limitation of the positioning groove 702, so that even if there are errors in the processing, it will not affect the installation.

[0040] In a preferred embodiment, the coil frame 6 is provided with a mounting block 604 on the side facing the operating component 3, and the test switch 7 is connected to the mounting block 604 at the position of the mounting block 604.

[0041] With this configuration, the mounting block 604 can adjust the position of the test switch 7 to the middle position of the circuit breaker, and also prevent the test switch 7 from affecting the electromagnetic coil 5.

[0042] In a preferred embodiment, the top of the test switch 7 is fitted with a button sleeve 703 whose outer diameter is adapted to the switch hole 201, and the bottom of the button sleeve 703 is provided with a mounting outer ring 7031 whose outer diameter is larger than that of the switch hole 201.

[0043] With this design, the button sleeve 703 increases the cross-sectional area of ​​the button, making it easier for the user to press the test switch 7, while the installation of the outer ring 7031 can prevent the button sleeve 703 from falling out, thus ensuring structural stability.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the scope of protection of the present invention.

Claims

1. A circuit breaker with a more stable test button, comprising a base, a top cover, an operating component, a circuit board, an electromagnetic coil, and a coil frame, wherein the electromagnetic coil is connected to the coil frame, characterized in that: It also includes a test switch, which is connected to the coil frame. The top cover has a switch hole that matches the position of the test switch, and the bottom of the test switch has pins on both sides.

2. The circuit breaker with a more stable test button according to claim 1, characterized in that: The coil frame is provided with a switch slot adapted to the test switch.

3. A circuit breaker with a more stable test button according to claim 1, characterized in that: The side wall of the coil frame is provided with a slot that matches the position of the pin.

4. A circuit breaker with a more stable test button according to claim 1, characterized in that: The coil frame has a positioning block on the side facing the test switch, and the test switch has a positioning groove that matches the position of the positioning block.

5. A circuit breaker with a more stable test button according to claim 4, characterized in that: Both the positioning block and the positioning slot are provided in twos.

6. A circuit breaker with a more stable test button according to claim 5, characterized in that: The two positioning slots on the test switch are located on both sides and penetrate the side walls.

7. A circuit breaker with a more stable test button according to claim 1, characterized in that: The coil frame has a mounting block on the side facing the operating component, and the test switch is connected to the mounting block at the location of the mounting block.

8. A circuit breaker with a more stable test button according to claim 1, characterized in that: The top of the test switch is fitted with a button sleeve whose outer diameter matches the switch hole, and the bottom of the button sleeve is provided with an outer mounting ring whose outer diameter is larger than the switch hole.