Split type electromagnetic switch
By introducing fixing components and anti-electric components into the split electromagnetic switch, the problem of failure to automatically disconnect the circuit when leakage occurs is solved, achieving a stable connection of the cable and automatic circuit disconnection protection, thus improving the safety and reliability of the electromagnetic switch.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MINGFU AUTOMOBILE PARTS CO LTD
- Filing Date
- 2025-01-26
- Publication Date
- 2026-04-17
AI Technical Summary
Existing split-type electromagnetic switches cannot automatically cut off the circuit when there is a leakage, causing the equipment to be in a dangerous state for a long time, which can easily lead to accidents such as fire and electric shock, especially in scenarios where it is difficult for personnel to reach the site in time.
A split-type electromagnetic switch was designed, comprising a fixing component and an anti-electric shock component. The fixing component stabilizes the cable through a damping spring and a roller, while the anti-electric shock component uses tin alloy and beryllium copper alloy springs to automatically disconnect the circuit in case of leakage, preventing the leakage from spreading.
It achieves a stable cable connection and automatic circuit breaking protection, improves the safety and reliability of the electromagnetic switch, and avoids malfunctions and dangers caused by loose cables or leakage.
Smart Images

Figure CN224138095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic switch technology, and in particular to a split-type electromagnetic switch. Background Technology
[0002] Split-type electromagnetic switches control the switching operation of circuits using the principle of electromagnetic force and are widely used in automated control systems. They consist of two parts: an electromagnetic coil and a switching mechanism. The electromagnetic coil is excited by an external current or voltage, which generates a magnetic field that attracts or releases the switching components, thereby connecting or disconnecting the circuit. Their function is to remotely control the circuit's on / off state, protect equipment, prevent overloads and short circuits, and improve the safety and reliability of the circuit. The split design makes installation and maintenance more convenient and is suitable for the control and protection of various electrical equipment.
[0003] However, existing electromagnetic switches cannot automatically cut off the circuit and disconnect the wires when leakage occurs. They rely on manual power disconnection and removal of the short-circuited wires. This not only makes the handling process time-consuming and leaves the equipment in a dangerous leakage state for a long time, but also easily causes serious accidents such as fires and electric shocks in some special environments or scenarios where personnel cannot reach them in time, endangering personal safety and the integrity of the equipment.
[0004] Therefore, this application provides a split-type electromagnetic switch to meet the requirements. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a split-type electromagnetic switch.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a split-type electromagnetic switch, comprising:
[0007] The electromagnetic switch body is placed on a snap-fit plate on the outside of the electromagnetic switch body.
[0008] A fixing component is placed on the inner wall of the snap-fit plate. The fixing component includes a top sliding block that slides in the slot of the snap-fit plate. A top fixing ring is provided on one side of the top sliding block. A damping spring is provided inside the top fixing ring. A connecting top ring is provided at the other end of the damping spring. A rotating ring is provided inside the connecting top ring. Rollers are provided on the rotating ring.
[0009] An anti-electric shock component is placed on the inner wall of the snap-fit plate away from the fixing component. The anti-electric shock component includes a bottom slot provided on the snap-fit plate, and a tin alloy spring is provided inside the bottom slot. A top slot is provided on the top of the snap-fit plate, and a beryllium copper alloy spring is provided inside the top slot.
[0010] Furthermore, a bottom sliding block is provided on the side of the slot of the snap-fit plate away from the top sliding block, and a bottom fixing ring is provided on the other side of the bottom sliding block. A damping spring is provided inside the bottom fixing ring, and a connecting bottom ring is provided at the other end of the damping spring at the top of the bottom fixing ring.
[0011] The beneficial effects of adopting the above-mentioned further solution are as follows: When in use, the cable is first placed on one side of the bottom sliding block. The damping spring inside the bottom fixing ring provides elastic support. The connecting bottom ring extends and retracts with the damping spring. In conjunction with the position limitation of the bottom sliding block, the cable can be effectively clamped to prevent displacement and ensure a stable connection.
[0012] Furthermore, a fixing screw is provided on the top sliding block.
[0013] The beneficial effect of adopting the above-mentioned further solution is that by using the fixing screw of the top sliding block, the top sliding block can be fastened to a specific position in the slot of the snap-fit plate by turning the fixing screw, thereby accurately defining the fixed position of the cable and preventing the cable from shifting in the horizontal direction.
[0014] Furthermore, the top of the beryllium copper alloy spring is positioned at the top of the top slot, and the bottom of the beryllium copper alloy spring is connected to the top sliding block.
[0015] The beneficial effect of adopting the above-mentioned further solution is that when the tin alloy spring melts due to leakage, the beryllium copper alloy spring loses its bottom support, its top is restricted by the top slot, and the bottom pulls the top sliding block, causing the connecting wire to fall off, thus achieving leakage protection and circuit breaking.
[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0017] 1. The fixing component is placed on the inner wall of the snap-fit plate. When in use, first place the cable on one side of the top sliding block. The damping spring in the top fixing ring provides buffering force. The top ring is connected to the rotating ring with rollers inside. When the cable has a slight shaking or displacement tendency, the damping spring extends and retracts, and the rollers on the rotating ring can roll with the cable. Together with the top sliding block, they work to stabilize and fix the cable and prevent it from loosening.
[0018] 2. The anti-electric shock component is located on the inner wall of the snap-fit plate away from the fixed component. Under normal circumstances, the tin alloy spring in the bottom slot and the beryllium copper alloy spring in the top slot remain in their original state. When there is leakage on the outside and the temperature rises to the melting point of the tin alloy spring, the tin alloy spring melts, and the beryllium copper alloy spring loses its support and falls, thereby driving the connected parts to move, causing the connecting wire to fall, cutting off the circuit, and preventing the leakage damage from spreading. Attached Figure Description
[0019] Figure 1This is a front view of the split-type electromagnetic switch of this utility model;
[0020] Figure 2 This is a bottom view of the split-type electromagnetic switch of this utility model;
[0021] Figure 3 This is a plan view of the split-type electromagnetic switch of this utility model;
[0022] Figure 4 This is a structural diagram of the fixed component in the split-type electromagnetic switch of this utility model.
[0023] Attached Figure
[0024] 1. Electromagnetic switch body;
[0025] 2. Fixing components; 21. Bottom fixing ring; 22. Top fixing ring; 23. Damping spring; 24. Connecting top ring; 25. Connecting bottom ring; 26. Rotating ring; 27. Roller; 28. Top sliding block; 29. Bottom sliding block;
[0026] 3. Anti-electric shock components; 31. Tin alloy spring; 32. Beryllium copper alloy spring; 33. Bottom slot; 34. Top slot;
[0027] 4. Connecting plate; 5. Fixing screws. Detailed Implementation
[0028] 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.
[0029] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a split-type electromagnetic switch, comprising:
[0030] The electromagnetic switch body 1 is placed on the snap-on plate 4 on the outside of the electromagnetic switch body 1.
[0031] The fixing component 2 is placed on the inner wall of the snap-fit plate 4. The fixing component 2 includes a top sliding block 28 that slides in the slot of the snap-fit plate 4. A top fixing ring 22 is provided on one side of the top sliding block 28. A damping spring 23 is provided inside the top fixing ring 22. A connecting top ring 24 is provided at the other end of the damping spring 23. A rotating ring 26 is provided inside the connecting top ring 24. Rollers 27 are provided on the rotating ring 26. When the fixing component 2 is placed on the inner wall of the snap-fit plate 4, the cable is first placed on one side of the top sliding block 28. The damping spring 23 in the top fixing ring 22 provides a buffering force. The connecting top ring 24 is connected to the rotating ring 26 with the rollers 27 inside. When the cable has a slight shaking or displacement tendency, the damping spring 23 extends and retracts to adjust. The rollers 27 on the rotating ring 26 can roll with the movement of the cable. Together with the top sliding block 28, they work to stabilize and fix the cable and prevent it from loosening.
[0032] The anti-electric shock component 3 is located on the inner wall of the snap-fit plate 4 away from the fixing component 2. The anti-electric shock component 3 includes a bottom slot 33 on the snap-fit plate 4, with a tin alloy spring 31 inside the bottom slot 33. The top of the snap-fit plate 4 has a top slot 34, with a beryllium copper alloy spring 32 inside the top slot 34. The anti-electric shock component 3 is located on the inner wall of the snap-fit plate 4 away from the fixing component 2. Under normal circumstances, the tin alloy spring 31 in the bottom slot 33 and the beryllium copper alloy spring 32 in the top slot 34 remain in their original state. When there is leakage on the outside and the temperature rises to the melting point of the tin alloy spring 31, the tin alloy spring 31 melts, and the beryllium copper alloy spring 32 loses its support and falls, thereby causing the connected parts to move, causing the connecting wires to fall, cutting off the circuit, and preventing the leakage damage from spreading.
[0033] Furthermore, such as Figure 1 - Figure 4 As shown: A bottom sliding block 29 is provided on the side of the slot of the snap-fit plate 4 away from the top sliding block 28. A bottom fixing ring 21 is provided on the other side of the bottom sliding block 29. A damping spring 23 is provided inside the bottom fixing ring 21. A connecting bottom ring 25 is provided at the other end of the damping spring 23 at the top of the bottom fixing ring 21. In use, the cable is first placed on one side of the bottom sliding block 29. The damping spring 23 in the bottom fixing ring 21 provides elastic support. The connecting bottom ring 25 extends and retracts with the damping spring 23. With the position limitation of the bottom sliding block 29, the cable can be effectively clamped to prevent its displacement and ensure a stable connection.
[0034] The above solutions also have the problem of equipment fixation, such as... Figure 1 Figure 4As shown: In this solution, a fixing screw 5 is provided on the top sliding block 28. By using the fixing screw 5 of the top sliding block 28, the top sliding block 28 can be fastened to a specific position in the slot of the snap-fit plate 4, thereby accurately defining the fixed position of the cable and preventing the cable from shifting in the horizontal direction.
[0035] The above solutions still have the problem of equipment leakage detection, such as... Figure 1 - Figure 4 As shown: In this scheme, the top of the beryllium copper alloy spring 32 is set at the top of the top slot 34, and the bottom of the beryllium copper alloy spring 32 is connected to the top sliding block 28. When the tin alloy spring 31 melts due to leakage, the beryllium copper alloy spring 32 loses its bottom support, its top is restricted by the top of the top slot 34, and its bottom pulls the top sliding block 28, causing the connecting wire to fall off, thereby achieving leakage protection and circuit breaking.
[0036] Working principle: such as Figure 1 - Figure 4 As shown, in the fixing component 2, the cable is first placed on one side of the top sliding block 28. The damping spring 23 inside the top fixing ring 22 provides buffering force. It cooperates with the top ring 24 and the rotating ring 26 with the roller 27 inside. The rotating ring 26 is slidably connected with the bottom fixing ring 21 and the top fixing ring 22. When the cable shakes or shifts, the damping spring 23 extends and retracts, and the roller 27 rolls, which works with the top sliding block 28 to stabilize and fix the cable and prevent it from loosening. After the cable is placed on one side of the bottom sliding block 29, the damping spring 23 inside the bottom fixing ring 21 is connected to the bottom ring 25 and cooperates with the bottom sliding block 29 to limit the position of the bottom sliding block 29, clamping the cable to prevent displacement. The fixing screw 5 on the top sliding block 28 can be turned to fasten it to a specific position in the slot of the snap plate 4, accurately limiting the horizontal position of the cable.
[0037] The anti-electric shock component 3 is located on a specific inner wall of the snap-fit plate 4. Under normal conditions, the tin alloy spring 31 in the bottom slot 33 and the beryllium copper alloy spring 32 in the top slot 34 remain in their original positions. Once the temperature rises to the melting point of the tin alloy spring 31 due to external leakage, the tin alloy spring 31 melts, and the beryllium copper alloy spring 32 loses its bottom support. Because the top is restricted by the top of the top slot 34, its bottom pulls the top sliding block 28, thereby causing the connecting wire to fall off, successfully cutting off the circuit and preventing the leakage damage from further expanding. These components work together to ensure the stability of the cable connection and can provide timely and effective circuit breaking protection in the event of leakage, improving the safety and reliability of the entire electromagnetic switch and enabling it to play an important role in various electrical equipment connection scenarios, avoiding various faults and dangers caused by loose cables or leakage.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. Split electromagnetic switch, characterized in that, include: The electromagnetic switch body (1) is placed on the snap-on plate (4) on the outside of the electromagnetic switch body (1); A fixing component (2) is placed on the inner wall of the snap-fit plate (4). The fixing component (2) includes a top sliding block (28) that slides in the slot of the snap-fit plate (4). A top fixing ring (22) is provided on one side of the top sliding block (28). A damping spring (23) is provided inside the top fixing ring (22). A connecting top ring (24) is provided at the other end of the damping spring (23). A rotating ring (26) is provided inside the connecting top ring (24). Rollers (27) are provided on the rotating ring (26). An anti-electric component (3) is placed on the inner wall of the snap-fit plate (4) away from the fixing component (2). The anti-electric component (3) includes a bottom slot (33) provided on the snap-fit plate (4). A tin alloy spring (31) is provided inside the bottom slot (33). A top slot (34) is provided on the top of the snap-fit plate (4). A beryllium copper alloy spring (32) is provided inside the top slot (34).
2. The split electromagnet switch of claim 1, wherein, A bottom sliding block (29) is provided on the side of the slot of the snap plate (4) away from the top sliding block (28). A bottom fixing ring (21) is provided on the other side of the bottom sliding block (29). A damping spring (23) is provided inside the bottom fixing ring (21). A connecting bottom ring (25) is provided at the other end of the damping spring (23) at the top of the bottom fixing ring (21).
3. The split electromagnet switch of claim 1, wherein, A fixing screw (5) is provided on the top sliding block (28).
4. The split electromagnet switch of claim 1, wherein, The top of the beryllium copper alloy spring (32) is located at the top of the top slot (34), and the bottom of the beryllium copper alloy spring (32) is connected to the top sliding block (28).
5. The split electromagnet switch of claim 1, wherein, The top of the tin alloy spring (31) is connected to the bottom sliding block (29), and the bottom of the tin alloy spring (31) is connected to the bottom slot (33).
6. The split electromagnet switch of claim 1, wherein, The rotating ring (26) is slidably connected to the bottom fixed ring (21) and the top fixed ring (22).
7. The split electromagnet switch of claim 2, wherein, A rotating ring (26) is provided at the top of the connecting bottom ring (25).