A bistable switch

Abstract

This utility model discloses a bistable switch, including a switch base and a stable circuit assembly disposed on the switch base. It also includes a terminal block electrically connected to the stable circuit assembly, a wire harness connected to the terminal block, and a connection port disposed on the wire harness. The terminal block is disposed on the switch base and has a wire clamping cover that can be opened and closed on its top. One end of the wire harness is connected to the terminal block and is pressed onto the terminal block by the wire clamping cover. The other end of the wire harness is connected to the connection port. The terminal block is disposed on the housing and connected to the connection port through the wire harness, so that the connection ports are not unique, which has strong versatility and can be seamlessly switched.

Description

Technical Field

[0001] This utility model relates to the field of automotive switch components technology, and in particular to a bistable switch. Background Technology

[0002] In the prior art, application number 2020231446058 discloses a bistable switch, including a housing. The housing contains a coil frame, two terminals, and a contact bridge. The coil frame has a hollow sleeve and a coil winding. The hollow sleeve contains a stationary iron core and a moving iron core. A guide rod is fixedly connected between the contact bridge and the moving iron core. The coil frame has a steady-state component for maintaining the moving iron core and the stationary iron core in an engaged or unengaged state. The steady-state component includes a return spring, a pressure spring for pressing against the contact bridge, and a permanent magnet block for strengthening the electromagnetic attraction of the moving iron core. However, this switch does not have a terminal block; it directly uses a terminal port for external connection, which limits its versatility and prevents seamless switching. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art. This utility model provides a bistable switch with a terminal block on the housing and a wiring harness connected to the terminal block. This makes the terminal block that can be connected is not unique, and it has strong versatility and can be seamlessly switched.

[0004] This utility model discloses a bistable switch, including a switch base and a steady-state circuit assembly disposed on the switch base. The feature is that it further includes a terminal block electrically connected to the steady-state circuit assembly, a wire harness connected to the terminal block, and a connection port disposed on the wire harness. The terminal block is disposed on the switch base and has a wire clamping cover that can be opened and closed on its top. One end of the wire harness is connected to the terminal block and is pressed onto the terminal block by the wire clamping cover, and the other end of the wire harness is connected to the connection port.

[0005] Using the above technical solution, the wiring port is connected to the terminal block via a wire harness, and further connected to the steady-state circuit components. The separate assembly method allows the wiring port of the switch to be switched. For example, the same switch can be connected to different types of wiring ports via a wire harness, thereby increasing the practicality of the product, making it more versatile, and enabling seamless switching.

[0006] A further feature of this invention is that a wiring pressure plate is provided below the wiring harness on the terminal block, and a limiting groove adapted to the wires on the wiring harness is provided on the wiring pressure plate. The wires at one end of the wiring harness connected to the terminal block are pressed into the limiting groove by the wire pressing cover.

[0007] By adopting the above technical solution, the wires on the wire harness can be staggered through the limiting groove, which makes it easier for the wire clamping cover to press down each wire, preventing stress on the solder joints and making it more stable during use.

[0008] A further feature of this invention is that the switch base includes a cylindrical base and a fixing plate disposed on the top of the base. The fixing plate has mounting holes and is rhomboid in shape. The mounting holes are disposed at opposite ends of the fixing plate.

[0009] The above technical solution is adopted, while the original bistable switches mostly use irregular shapes for their bases, which not only makes the later assembly complicated, but also makes it more troublesome to open the cavity in the car. Using a cylindrical base can simplify the later assembly process, and only a cylindrical hole needs to be opened in the corresponding position in the car.

[0010] A further feature of this invention is that the wire clamping cover is detachably connected to the terminal block. Alternatively, the wire clamping cover can be rotatably mounted on the terminal block to achieve opening and closing.

[0011] Using the above technical solution, opening the wire clamp cover facilitates the electrical connection of the wire harness and makes subsequent maintenance easier. Of course, the wire clamp cover can also be rotated on one side of the terminal block, thereby realizing rotational opening and rotational wire clamping.

[0012] A further feature of this invention is that the terminal block has latches on opposite sides, and the wire cover has a snap-fit ​​groove corresponding to the latches. When the wire cover is assembled onto the terminal block, the latches abut against the bottom of the snap-fit ​​groove to form an anti-detachment structure that prevents the wire cover from automatically detaching.

[0013] Using the above technical solution, assembly can be achieved by inserting the latch into the slot with external force. The latch hooking in the slot can prevent the wire clamping cover from automatically detaching. In addition to completing the assembly, it can also tighten the wire harness, which has multiple benefits. When disassembling, the latch can be disengaged from the slot by external force.

[0014] A further feature of this invention is that the wire pressing cover includes vertical sections on both sides and a connecting section connecting the two vertical sections. The wire harness is pressed into the limiting groove through the connecting section, and the snap-fit ​​groove is set on the corresponding vertical section. The two vertical sections are made of deformable material.

[0015] Using the above technical solution, the vertical section of the wire clamping cover is relatively easy to deform, which facilitates the insertion of the latch into the locking groove. The wire clamping cover is preferably made of injection molding and preferably made of plastic.

[0016] A further feature of this invention is that the top of the latch is inclined to form an inclined guide surface, and an avoidance groove is provided on the vertical section corresponding to the position of the latch, and the top of the avoidance groove is provided with a slope surface that matches the inclined guide surface.

[0017] By adopting the above technical solution, avoiding the long groove can reduce resistance, and the cooperation of the inclined guide surface and the ramp surface can more easily guide the latch into the locking groove, reducing the difficulty of assembly.

[0018] A further feature of this invention is that the bottom of the limiting groove is arc-shaped.

[0019] By adopting the above technical solution, the contact area can be increased, thereby more stably pressing the wire at this position, preventing the solder joint from breaking, and making it more stable during use.

[0020] A further feature of this invention is that a protrusion is provided on the outer side of the vertical section, and the protrusion protrudes laterally from the vertical section.

[0021] By adopting the above technical solution, it is easy to apply force to pull the vertical section outward to deform it, thereby causing the latch to disengage from the locking groove and allowing the wire clamp cover to be removed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the present invention after the pressure cap is removed;

[0024] Figure 3 for Figure 2 Partial structural diagram;

[0025] Figure 4 This is a schematic diagram of the pressure cap structure of this utility model;

[0026] Figure 5 for Figure 3 Enlarged view of part a. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", 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.

[0029] This utility model discloses a bistable switch, including a switch base 1 and a steady-state circuit assembly 2 disposed on the switch base 1. (The steady-state circuit assembly 2 may include a coil frame, two terminals, and a contact bridge. The coil frame is provided with a hollow sleeve and a coil winding. A stationary iron core and a moving iron core are disposed inside the hollow sleeve. A guide rod is fixedly connected between the contact bridge and the moving iron core. A steady-state component for maintaining the moving iron core and the stationary iron core in an attracted or released state is disposed on the coil frame. The steady-state component includes a return spring, a pressure spring for pressing against the contact bridge, and a permanent magnet block for strengthening the electromagnetic attraction of the moving iron core. This is prior art and will not be described in detail here.) In the embodiments of this utility model, there are also... The device includes a terminal block 3 electrically connected to the steady-state circuit component 2, a wire harness 4 connected to the terminal block 3, and a wiring port 5 on the wire harness 4. The terminal block 3 is mounted on the switch base 1 and has a wire clamping cover 6 that can be opened and closed on its top. One end of the wire harness 4 is connected to the terminal block 3 and is clamped onto the terminal block 3 by the wire clamping cover 6. The other end of the wire harness 4 is connected to the wiring port 5. The wiring port 5 is connected to the terminal block 3 via the wire harness 4 and further connected to the steady-state circuit component 2. The device adopts a split assembly method, which allows the wiring ports of the switch to be switched. For example, the same switch can be connected to different types of wiring ports 5 through the wire harness 4, thereby increasing the practicality of the product, making it more versatile, and enabling seamless switching.

[0030] A wiring pressure plate 7 is provided on the terminal block 3 below the wire harness 4. The wiring pressure plate 7 is provided with a limiting groove 71 that matches the wires on the wire harness 4. The wires of the end of the wire harness 4 connected to the terminal block 3 are pressed into the limiting groove 71 by the wire pressing cover 6. The limiting groove 71 can stagger the wires on the wire harness 4, so that the wire pressing cover 6 can press each wire, prevent the solder joint from being stressed, and make it more stable during use.

[0031] The switch base 1 includes a cylindrical base 11 and a fixing plate 12 disposed on the top of the base 11. The fixing plate 12 has an assembly hole 121. The fixing plate 12 is diamond-shaped. The assembly hole 121 is disposed at opposite ends of the fixing plate 12. The original bistable switches mostly used irregular shapes for their bases, which not only made the later assembly complicated, but also made it more troublesome to open the cavity in the car. Using a cylindrical base 11 can simplify the later assembly process, and only a cylindrical hole needs to be opened at the corresponding position in the car.

[0032] The wire clamping cover 6 is detachably connected to the terminal block 3. Opening the wire clamping cover 6 facilitates the electrical connection of the wire harness 4 and makes it easier for later maintenance. Of course, the wire clamping cover 6 can also be hinged on one side and rotated to open and close on the terminal block 3, which is a relatively simple opening and closing method.

[0033] The terminal block 3 has latches 8 on opposite sides, and the wire clamping cover 6 has a locking groove 61 corresponding to the latches 8. When the wire clamping cover 6 is assembled onto the terminal block 3, the latches 8 and the bottom of the locking groove 61 abut against each other to form an anti-detachment structure that prevents the wire clamping cover 6 from automatically detaching. Assembly can be achieved by inserting the latches 8 into the locking groove 61 with external force. The latches 8 hooking into the locking groove 61 can prevent the wire clamping cover 6 from automatically detaching. In addition to completing the assembly, it can also tighten the wire harness, which has multiple benefits. When disassembling, the latches 8 can be disengaged from the locking groove 61 by external force.

[0034] The wire clamping cover 6 includes vertical sections 62 on both sides and a connecting section 63 connecting the two vertical sections 62. The wire harness 4 is clamped in the limiting groove 71 through the connecting section 63. The snap-fit ​​groove 61 is set on the corresponding vertical section 62, and the two vertical sections 62 are made of deformable material. With this layout, the vertical sections 62 of the wire clamping cover 6 are relatively easy to deform, so that the snap-fit ​​tongue 8 can easily enter the snap-fit ​​groove 61. The wire clamping cover 6 is preferably made of injection molding, and is preferably made of plastic.

[0035] The top of the latch 8 is inclined to form an inclined guide surface 81. A clearance groove 64 is provided on the vertical section 62 corresponding to the position of the latch 8. The top of the clearance groove 64 is provided with a slope surface 65 that matches the inclined guide surface 81. The clearance groove 64 can reduce resistance. Through the cooperation of the inclined guide surface 81 and the slope surface 65, the latch 8 can be guided into the locking groove 61 more conveniently, reducing the difficulty of assembly.

[0036] The bottom of the limiting groove 71 is arc-shaped, which can increase the contact area and thus more stably press the wire at this position, thereby preventing the solder joint from breaking and making it more stable during use.

[0037] The vertical section 62 is also provided with a protrusion 9 on the outside. The protrusion 9 protrudes laterally from the vertical section 62, which makes it easy to apply force to pull the vertical section 62 outward to deform it, so that the latch 8 disengages from the latching groove 61 and the wire clamping cover 6 can be removed.

Claims

1. A bistable switch, comprising a switch base (1) and a stable circuit assembly (2) disposed on the switch base (1), characterized in that: It also includes a terminal block (3) electrically connected to the steady-state circuit assembly (2), a wire harness (4) connected to the terminal block (3), and a connection port (5) provided on the wire harness (4). The terminal block (3) is provided on the switch base (1), and a wire clamping cover (6) is provided on its top. One end of the wire harness (4) is connected to the terminal block (3) and is clamped on the terminal block (3) by the wire clamping cover (6). The other end of the wire harness (4) is connected to the connection port (5).

2. A bistable switch according to claim 1, characterized in that: A wiring pressure plate (7) is provided on the terminal block (3) below the wire harness (4). The wiring pressure plate (7) is provided with a limiting groove (71) that is compatible with the wire on the wire harness (4). The wire at the end of the wire harness (4) connected to the terminal block (3) is pressed into the limiting groove (71) by the wire pressing cover (6).

3. A bistable switch according to claim 1 or 2, characterized in that: The switch base (1) includes a cylindrical base (11) and a fixing plate (12) disposed on the top of the base (11), wherein the fixing plate (12) is provided with mounting holes (121).

4. A bistable switch according to claim 3, characterized in that: The fixing plate (12) is diamond-shaped, and the mounting holes (121) are located at opposite ends of the fixing plate (12).

5. A bistable switch according to claim 2, characterized in that: The wire clamp cover (6) is detachably connected to the terminal block (3).

6. A bistable switch according to claim 2, characterized in that: One side of the wire clamp (6) is rotatably connected to the terminal block (3).

7. A bistable switch according to claim 5, characterized in that: The terminal block (3) has latches (8) on both sides opposite to each other, and the wire cover (6) has a snap-fit ​​groove (61) corresponding to the latches (8). When the wire cover (6) is assembled onto the terminal block (3), the latches (8) and the bottom of the snap-fit ​​groove (61) abut against each other to form an anti-detachment structure that prevents the wire cover (6) from automatically detaching.

8. A bistable switch according to claim 7, characterized in that: The wire clamping cover (6) includes vertical sections (62) on both sides and a connecting section (63) connecting the two vertical sections (62). The wire harness (4) is clamped in the limiting groove (71) through the connecting section (63). The snap-fit ​​groove (61) is set on the corresponding vertical section (62). The two vertical sections (62) are made of deformable material. The outer side of the vertical section (62) is also provided with a protrusion (9). The protrusion (9) protrudes laterally from the vertical section (62).

9. A bistable switch according to claim 8, characterized in that: The top of the latch (8) is inclined to form an inclined guide surface (81), and a clearance groove (64) is provided on the vertical section (62) corresponding to the position of the latch (8), and the top of the clearance groove (64) is provided with a slope surface (65) that is compatible with the inclined guide surface (81).

10. A bistable switch according to claim 2, characterized in that: The bottom of the limiting groove (71) is arc-shaped.

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