Electromagnetic switch with terminal protection

Abstract

The utility model relates to electromagnetic switch technical field especially relates to a kind of electromagnetic switch with wiring terminal protection function, including the wiring assembly of electromagnetic switch body setting in the wiring assembly outside of the outer protection mechanism of electromagnetic switch body top, the wiring assembly with the electromagnetic switch body top sealing fixed, the outer protection mechanism is clamped and set in wiring assembly outside, the wiring assembly includes terminal block, terminal post, grommet, shrink ring, snap ring and cable tie, the terminal post with the terminal block top is fixed, the grommet is sleeved in terminal post outside, the cable tie is sleeved in shrink ring top outside side, this electromagnetic switch with wiring terminal protection function is mainly to the wiring terminal of electromagnetic switch effectively, fast protection is carried out, and the entire terminal block outside is shielded, effectively reduce dust, oil dirt etc. Adhere in wiring place, to effectively slow down corrosion, prolong the service life of electromagnetic switch.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic switch technology, and in particular to an electromagnetic switch with terminal protection function. Background Technology

[0002] An electromagnetic switch is a switch controlled by an electromagnet; it's a combination of an electromagnet and a switch. When the electromagnet coil is energized, it generates electromagnetic attraction, causing the movable iron core to push or pull the switch contacts to close, thus connecting the controlled circuit. An electromagnetic switch is a control switch on a car starter motor. Its working principle is that when the coil is energized, it generates electromagnetic attraction, causing the movable iron core to move. This pulls the transmission meshing mechanism, causing the starter pinion to move forward and engage with the engine flywheel ring gear. Simultaneously, it pushes the switch contacts to close, energizing the DC motor and causing it to run, thereby starting the engine.

[0003] After installation, the terminals of an electromagnetic switch are exposed and lack necessary external protection. After prolonged use, a large amount of oil, dust and other impurities will adhere to its surface, leading to corrosion of the terminals, poor contact and other issues, which will affect the service life of the electromagnetic switch and may even damage the starter motor. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an electromagnetic switch with terminal protection.

[0005] This utility model is achieved through the following technical solution:

[0006] An electromagnetic switch with terminal protection function includes a wiring assembly disposed on the top of the electromagnetic switch body and an outer protective mechanism disposed outside the wiring assembly. The wiring assembly is sealed and fixed to the top of the electromagnetic switch body, and the outer protective mechanism is snapped onto the outside of the wiring assembly. The wiring assembly includes a terminal block, a terminal post, a washer, a shrink ring, a retaining ring, and a cable tie. The terminal post is fixed to the top of the terminal block, the washer is sleeved on the outside of the terminal post, the shrink ring is fixedly disposed at the bottom of the washer, the retaining ring is fixedly disposed on the outside of the terminal block, and the cable tie is sleeved on the outside of the top of the shrink ring.

[0007] In a preferred embodiment of the present invention, the outer protective mechanism includes an outer shell and a protective sheet, wherein the protective sheet is fixedly disposed on the inner side of the top of the outer shell;

[0008] External protection mechanisms mainly involve adding necessary shielding components to the outside of the wiring assembly to reduce the adhesion of dust, oil, and other contaminants to the wiring terminals.

[0009] In a preferred embodiment of the present invention, the outer shell is a plastic structure, a retaining strip is fixedly provided on the inner side of the outer shell, the retaining strip on the inner side of the outer shell is engaged with the bottom of the retaining ring on the outer side of the terminal block, and heat dissipation holes are also provided on the surface of the outer shell.

[0010] The clips on the inside of the outer casing facilitate direct fixation to the outside of the terminal block. The heat dissipation holes on the surface of the outer casing are generally rotated downwards to effectively ensure heat dissipation while reducing the entry of oil, dust, etc.

[0011] In a preferred embodiment of the present invention, the protective sheet has a triangular structure, and a gap is provided between two adjacent protective sheets. The protective sheet is made of rubber.

[0012] The wire-passing hole at the top of the outer casing facilitates the passage of wires, while the gaps between the protective plates allow wires to pass through. The protective plates fit snugly against the outside of the wires, reducing the exposed area of ​​the wire-passing hole at the top.

[0013] In a preferred embodiment of this utility model, the shrink ring is an annular rubber ring with triangular baffles on the outside. The triangular baffles are rolled up and interlaced with each other, and are fixed to the outside of the connecting wire by cable ties.

[0014] Connect the end of the wire to the terminal block and secure it with a nut. Then, straighten and arrange the triangular shielding piece and fix it to the outside of the wire with a cable tie or elastic band to achieve the effect of shielding the wiring area and providing a certain degree of shielding.

[0015] The beneficial effects of this utility model are:

[0016] This electromagnetic switch with terminal protection function effectively and quickly protects the wiring terminals of the electromagnetic switch and shields the entire terminal block, effectively reducing the adhesion of dust, oil, and other contaminants at the wiring terminals, thereby effectively slowing down corrosion and extending the service life of the electromagnetic switch. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the electromagnetic switch with terminal protection function according to this utility model.

[0018] Figure 2 This is a schematic diagram of the wiring assembly structure of the electromagnetic switch with terminal protection function according to this utility model.

[0019] Figure 3 This is a schematic diagram of the external protection mechanism of the electromagnetic switch with terminal protection function of this utility model.

[0020] Figure 4 This is a schematic diagram of the shrink ring installation structure of the electromagnetic switch with terminal protection function according to this utility model.

[0021] In the diagram: 1. Electromagnetic switch body; 2. Wiring assembly; 21. Terminal block; 22. Terminal post; 23. Washer ring; 24. Shrink ring; 25. Snap ring; 26. Cable tie; 3. Outer protective mechanism; 31. Outer casing; 32. Protective plate. Detailed Implementation

[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0023] like Figure 1-4 An electromagnetic switch with terminal protection function is shown, including an electromagnetic switch body 1, a wiring assembly 2 disposed on the top of the electromagnetic switch body 1, and an outer protection mechanism 3 disposed outside the wiring assembly 2. The wiring assembly 2 is sealed and fixed to the top of the electromagnetic switch body 1, and the outer protection mechanism 3 is snapped onto the outside of the wiring assembly 2. The wiring assembly 2 includes a terminal block 21, a terminal post 22, a washer 23, a shrink ring 24, a retaining ring 25, and a cable tie 26. The terminal post 22 is fixed to the top of the terminal block 21, the washer 23 is sleeved on the outside of the terminal post 22, the shrink ring 24 is fixedly disposed at the bottom of the washer 23, the retaining ring 25 is fixedly disposed on the outside of the terminal block 21, and the cable tie 26 is sleeved on the outside of the top of the shrink ring 24.

[0024] Specifically, the outer protective mechanism 3 includes an outer shell 31 and a protective plate 32. The protective plate 32 is fixedly installed on the inner top of the outer shell 31. The outer shell 31 is made of plastic. A retaining strip is fixedly installed on the inner side of the outer shell 31. The retaining strip on the inner side of the outer shell 31 is engaged with the bottom of the retaining ring 25 on the outer side of the terminal block 21. Heat dissipation holes are also provided on the surface of the outer shell 31. The protective plate 32 has a triangular structure. A gap is provided between two adjacent protective plates 32. The protective plate 32 is made of rubber. The shrink ring 24 is an annular rubber ring with a triangular shielding plate on the outside. After the triangular shielding plates are rolled up, they are intertwined and fixed to the outside of the connecting wire by the cable tie 26.

[0025] In this embodiment, when starting the wiring on the terminal block 21 at the top of the electromagnetic switch body 1, first pass one end of all the wires through the wire hole at the top of the outer casing 31, and then connect the wires. After wrapping the end of the wire around the surface of the terminal block 22, tighten the nut on the surface of the terminal block 22 so that the washer at the bottom of the nut can effectively press the end of the wire, thereby achieving the ideal wiring effect. After the wiring is completed, since the washer 23 is squeezed and fixed, simply lift the triangular shield on the outside of the shrink ring 24 upward and tidy it up slightly so that its edges are staggered, so that the shield is wrapped around the outside of the wiring point in a cone shape, and fix its top to the wire with the cable tie 26 or rubber band ring, thereby achieving effective protection of the wiring area.

[0026] Furthermore, the outer casing 31 is rolled down so that its bottom is fitted onto the outside of the terminal block 21. The inner retaining strip is pressed down and locked to the bottom of the outer retaining ring 25 of the terminal block 21 to achieve the effect of fixing the outer casing 31. The bottom of the outer casing 31 has a vertical shrink groove for easy installation and disassembly. A protective plate 32 is provided inside the wire hole at the top of the outer casing 31. The protective plate 32 is composed of a triangular rubber sheet, which can effectively fit the surface of the wire and reduce the exposed area. After installation, the outer casing 31 can rotate outside the terminal block 21, mainly so that the heat dissipation and ventilation holes on its surface are located on the windproof side, reducing the entry of dust, oil mist, etc., thereby reducing the adhesion of internal impurities and effectively improving the service life of the electromagnetic switch.

[0027] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0028] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An electromagnetic switch with terminal protection function, comprising an electromagnetic switch body (1), a wiring assembly (2) disposed on the top of the electromagnetic switch body (1), and an outer protection mechanism (3) disposed outside the wiring assembly (2), characterized in that: The wiring assembly (2) is sealed and fixed to the top of the electromagnetic switch body (1), and the outer protective mechanism (3) is snapped onto the outside of the wiring assembly (2); The wiring assembly (2) includes a terminal block (21), a terminal post (22), a washer (23), a shrink ring (24), a retaining ring (25), and a cable tie (26). The terminal post (22) is fixed to the top of the terminal block (21). The washer (23) is sleeved on the outside of the terminal post (22). The shrink ring (24) is fixedly disposed at the bottom of the washer (23). The retaining ring (25) is fixedly disposed on the outside of the terminal block (21). The cable tie (26) is sleeved on the outside of the top of the shrink ring (24).

2. The electromagnetic switch with terminal protection function according to claim 1, characterized in that: The outer protective mechanism (3) includes an outer shell (31) and a protective plate (32), wherein the protective plate (32) is fixedly disposed on the inner side of the top of the outer shell (31).

3. The electromagnetic switch with terminal protection function according to claim 2, characterized in that: The outer casing (31) is made of plastic. A retaining strip is fixedly installed on the inner side of the outer casing (31). The retaining strip on the inner side of the outer casing (31) is engaged with the bottom of the retaining ring (25) on the outer side of the terminal block (21). Heat dissipation holes are also provided on the surface of the outer casing (31).

4. The electromagnetic switch with terminal protection function according to claim 2, characterized in that: The protective sheet (32) has a triangular structure, and there is a gap between two adjacent protective sheets (32). The protective sheet (32) is made of rubber.

5. The electromagnetic switch with terminal protection function according to claim 1, characterized in that: The shrink ring (24) is a ring-shaped rubber ring with triangular shielding pieces on the outside. The triangular shielding pieces are rolled up and intertwined, and fixed to the outside of the connecting wire by cable ties (26).

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