Damping switch with stable pressing force

Abstract

The utility model discloses a kind of damping switches of pressing force is stable, including upper cover and base, additionally still include gasket, fixedly clamped with power terminal between upper cover and base;Upper cover is provided with toggle switch, the lower end of toggle switch is sequentially provided with toggle and reset spring, the lower end of reset spring is clamped on base, upper end elastically pushes toggle and abuts on toggle switch, gasket is set between toggle and reset spring;Toggle is elastically abutted on power terminal with the end of toggle switch toggle, one end of toggle close to power terminal.The utility model is added gasket of round piece structure between toggle and reset spring, cooperate with the fixed sleeve rod of abutment convex point on toggle and base, so that toggle can be vertically applied to gasket by abutment convex point, then gasket is evenly dispersed to the whole upper end surface of reset spring, while fixed sleeve rod forms stable support to spring lower end surface, realize spring upper and lower double plane even force, effectively prevent spring fatigue deformation or breakage.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a damping switch that provides stable pressure response when pressed. Background Technology

[0002] As the automotive industry continues to demand higher precision and reliability in electronic control, vehicle-mounted components must simultaneously meet stringent standards for mechanical performance, electrical performance, and durability. As a key actuator in automotive electronic control systems, the damping switch assembly's core function is to achieve circuit switching and signal transmission through the linkage of the damping switch structure. Its operational stability directly affects the reliability of the entire vehicle's electronic system.

[0003] In existing technologies, to optimize signal transmission sensitivity and conduction efficiency, damping switch assemblies generally employ an inclined contact design, which theoretically reduces contact gap and increases conduction speed. However, in practical applications, due to the inclined contact, when the switch is pressed, the contact between the spring end face and the contact is not parallel, resulting in a significant imbalance in the spring force. The normal force on one end of the spring is significantly greater than that on the other end, creating a lateral torque. This asymmetrical force causes the spring to be in a torsional stress state for a long time, easily leading to stress concentration, fatigue deformation, or even breakage, significantly shortening the switch's lifespan. Secondly, the uneven force makes the contact pressure between the contact and the contact point unstable, resulting in instantaneous open circuits, fluctuations in contact resistance, and other phenomena, causing signal transmission distortion or interruption, ultimately damaging electrical components and, in severe cases, affecting the normal operation of the entire vehicle's electronic system.

[0004] However, according to the standard VW 80101:2009-11 (revised in November 2009), which is followed by automotive body mounting components, section 4.1.4, the body mounting components undergo Level 2 mechanical durability vibration testing, and the test is performed according to DIN EN 60068-2-64, including core indicators such as vibration testing, mechanical shock testing, and cyclic pressing durability testing. Due to uneven spring force, the inclined contact plate structure is prone to contact instability, which often causes the switch assembly to fail the durability cycle and contact reliability tests during testing. This can easily lead to defects such as excessive contact resistance after cyclic pressing, switch sticking, and electrical function failure. Utility Model Content

[0005] The purpose of this utility model is to provide a damping switch with stable pressing force, which aims to improve the existing damping switch assembly that adopts an inclined contact plate structure, resulting in uneven spring force when pressed, which easily leads to spring fatigue deformation or even breakage, shortening the switch life; at the same time, there are problems such as excessive contact resistance after repeated pressing, switch action jamming, and failure of electrical functions.

[0006] This utility model is implemented as follows: A damping switch with stable pressing force includes an upper cover and a base, and also includes a gasket. A power-conducting terminal is fixedly mounted between the upper cover and the base. The upper cover is provided with a toggle switch. The lower end of the toggle switch is provided with a lever and a return spring in sequence. The lower end of the return spring is mounted on the base, and the upper end elastically pushes the lever against the toggle switch. The gasket is disposed between the lever and the return spring. The end of the lever near the power-conducting terminal elastically abuts against the power-conducting terminal as the toggle switch is moved.

[0007] Preferably, the upper cover is provided with first buckles symmetrically on both sides, and the base is provided with second slots that are adapted to each of the first buckles, and the first buckles are engaged in the second slots.

[0008] Preferably, the upper cover has symmetrical first slots on both sides, and the base has second buckles that are adapted to each of the first slots, and the second buckles are engaged in the first slots.

[0009] Preferably, the upper cover includes a first pressing end, and the base is provided with a second pressing end adapted to the first pressing end, and the power-on terminal is clamped and disposed through the first pressing end and the second pressing end.

[0010] Preferably, the base includes a fixed sleeve rod, which is vertically arranged on the base, and the lower end of the reset spring is fitted onto the fixed sleeve rod.

[0011] Preferably, the paddle includes an abutting protrusion, and the abutting protrusion is provided at the position of the paddle corresponding to the pad, and the abutting protrusion abuts against the pad.

[0012] Preferably, the gasket is a circular structure, and the gasket is fixedly laid on the upper end of the return spring.

[0013] Preferably, the rotation point of the toggle switch and the abutment protrusion are vertically aligned, and the toggle switch can drive the lever to move up and down around the abutment protrusion.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model adds a circular pad between the switch and the return spring. This pad, along with the abutting protrusion on the switch and the fixing rod of the base, allows the switch to act vertically on the pad through the abutting protrusion. The force is then evenly distributed across the entire upper surface of the return spring by the pad. Simultaneously, the fixing rod provides stable support to the lower surface of the spring, achieving uniform force distribution on both the upper and lower planes of the spring. This prevents the spring from twisting, tilting, and experiencing stress concentration during pressing, effectively preventing spring fatigue deformation or breakage. Furthermore, it ensures that the switch maintains stable force during repeated pressing, avoiding problems such as excessive contact resistance and stuck operation.

[0015] 2. This utility model aligns the rotation point of the toggle switch with the contact protrusion of the lever vertically. When the toggle switch moves the lever up and down around the contact protrusion, the end of the lever closest to the power terminal always maintains a stable elastic contact force, effectively solving the problem of contact pressure fluctuation caused by uneven force in the existing inclined contact plate structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the top cover of this utility model. Figure 3 This is a schematic diagram of the internal structure of the top cover of this utility model; Figure 4 This is a schematic diagram of the structure of the paddle of this utility model installed inside the upper cover; Figure 5 This is a schematic diagram of the structure of the toggle switch and the power terminal of this utility model mounted on the base; Figure 6 This is a structural schematic diagram of the base of this utility model; Figure 7 This is a schematic diagram of the structure of the reset spring and washer of this utility model.

[0017] In the diagram: 1. Top cover; 101. First buckle; 102. First slot; 103. First pressing end; 2. Base; 201. Second slot; 202. Second buckle; 203. Second pressing end; 204. Fixing sleeve; 3. Toggle switch; 4. Power terminal; 5. Paddle; 501. Abutment protrusion; 6. Return spring; 7. Washer. Detailed Implementation

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0020] like Figures 1-6As shown, a damping switch with stable pressing force includes an upper cover 1, a base 2, and a pad 7. A power-conducting terminal 4 is fixedly fastened between the upper cover 1 and the base 2. First latches 101 are symmetrically arranged on both sides of the upper cover 1. The base 2 has second slots 201 that mate with each of the first latches 101, with the first latches 101 engaging in the second slots 201. First slots 102 are symmetrically arranged on both sides of the upper cover 1. The base 2 has second latches 202 that mate with each of the first slots 102, with the second latches 202 engaging in the first slots 102. The upper cover 1 includes a first pressing end 103, and the base 2 has a second pressing end 203 that mates with the first pressing end 103. The power-conducting terminal 4 is clamped between the first pressing end 103 and the second pressing end 203. The upper cover 1 is the upper housing of the switch, with first buckles 101 and first slots 102 symmetrically arranged on both sides for bidirectional engagement and fixation with the base 2; the base 2 is the lower housing of the switch, with second slots 201 (adapted to the first buckles 101) and second buckles 202 (adapted to the first slots 102) correspondingly arranged on both sides, forming a firm engagement with the upper cover 1. There are two power terminals 4, which are the core conductive components of the switch. They are clamped and fixed by the pressing ends of the upper cover and the base. The terminal feet extend to the outside of the base for connecting to an external connector to transmit switch signals; as fixed contact ends for circuit on / off, they abut against the lever 5 to achieve conduction and separate to achieve disconnection.

[0021] like Figures 1-7As shown, the upper cover 1 is equipped with a toggle switch 3. A lever 5 and a return spring 6 are sequentially arranged at the lower end of the toggle switch 3. The lower end of the return spring 6 is snapped onto the base 2. The base 2 includes a fixing sleeve 204, which is vertically arranged on the base 2. The lower end of the return spring 6 is fitted onto the fixing sleeve 204. The upper end elastically pushes the lever 5 against the toggle switch 3. A gasket 7 is disposed between the lever 5 and the return spring 6. The lever 5 is close to the power supply. One end of terminal 4 is elastically abutted against the energized terminal 4 when the toggle switch 3 is toggled. The toggle 5 includes an abutment protrusion 501. The toggle 5 is provided with an abutment protrusion 501 at the position corresponding to the pad 7. The abutment protrusion 501 abuts against the pad 7. The pad 7 is a circular plate structure. The pad 7 is fixedly laid on the upper end of the return spring 6. The rotation point of the toggle switch 3 is vertically aligned with the abutment protrusion 501. The toggle switch 3 can drive the toggle 5 to move up and down around the abutment protrusion 501. The toggle switch 3 is a switch structure that can be tossed left and right. By tossing the toggle switch 3, the toggle piece 5 is raised or lowered, thereby achieving the contact and disconnection of the energized terminal 4. The toggle piece 5 directly abuts against the pad 7 through the abutment protrusion 501. The compression displacement generated when the toggle piece 5 is tossed will drive the return spring 6 to compress as a whole through the pad 7, thereby avoiding uneven force on the spring due to single point or one side of force. The pressing force of the toggle piece 5 is applied vertically to the pad 7 through the abutment protrusion 501. The pad 7 evenly distributes the pressure to the entire upper surface of the return spring 6. The lower surface of the spring is stably supported by the fixed sleeve 204, realizing uniform force on both the upper and lower planes of the spring. The spring does not twist or deflect during the pressing process. Example 2

[0022] like Figures 1-6 As shown, a damping switch with stable pressing force includes an upper cover 1, a base 2, and a pad 7. A power-conducting terminal 4 is fixedly fastened between the upper cover 1 and the base 2. First latches 101 are symmetrically arranged on both sides of the upper cover 1. The base 2 has second slots 201 that mate with each of the first latches 101, with the first latches 101 engaging in the second slots 201. First slots 102 are symmetrically arranged on both sides of the upper cover 1. The base 2 has second latches 202 that mate with each of the first slots 102, with the second latches 202 engaging in the first slots 102. The upper cover 1 includes a first pressing end 103, and the base 2 has a second pressing end 203 that mates with the first pressing end 103. The power-conducting terminal 4 is clamped between the first pressing end 103 and the second pressing end 203.

[0023] like Figures 1-7As shown, the upper cover 1 is equipped with a toggle switch 3. A lever 5 and a return spring 6 are sequentially arranged at the lower end of the toggle switch 3. The lower end of the return spring 6 is snapped onto the base 2. The base 2 includes a fixing sleeve 204, which is vertically arranged on the base 2. The lower end of the return spring 6 is fitted onto the fixing sleeve 204. The upper end elastically pushes the lever 5 against the toggle switch 3. A gasket 7 is disposed between the lever 5 and the return spring 6. The lever 5 is close to the power supply. One end of terminal 4 is elastically abutted against the energized terminal 4 when the toggle switch 3 is toggled. The toggle 5 includes an abutment protrusion 501. The toggle 5 is provided with an abutment protrusion 501 at the position corresponding to the pad 7. The abutment protrusion 501 abuts against the pad 7. The pad 7 is a circular plate structure. The pad 7 is fixedly laid on the upper end of the return spring 6. The rotation point of the toggle switch 3 is vertically aligned with the abutment protrusion 501. The toggle switch 3 can drive the toggle 5 to move up and down around the abutment protrusion 501.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A damping switch with stable pressing force, comprising an upper cover (1) and a base (2), characterized in that, In addition, a gasket (7) is included. A power terminal (4) is fixedly installed between the upper cover (1) and the base (2). The upper cover (1) is provided with a toggle switch (3). A toggle piece (5) and a return spring (6) are arranged in sequence at the lower end of the toggle switch (3). The lower end of the return spring (6) is fixed on the base (2), and the upper end elastically pushes the toggle piece (5) to abut against the toggle switch (3). The gasket (7) is arranged between the toggle piece (5) and the return spring (6). The end of the toggle piece (5) near the power terminal (4) elastically abuts against the power terminal (4) as the toggle switch (3) is toggled.

2. A damping switch with stable pressing force according to claim 1, characterized in that, The top cover (1) is symmetrically provided with first buckles (101) on both sides, and the base (2) is provided with second slots (201) that are adapted to each of the first buckles (101). The first buckles (101) are fitted into the second slots (201).

3. A damping switch with stable pressing force according to claim 2, characterized in that, The top cover (1) is symmetrically provided with first slots (102) on both sides, and the base (2) is provided with second buckles (202) that are adapted to each of the first slots (102). The second buckles (202) are engaged in the first slots (102).

4. A damping switch with stable pressing force according to claim 1, characterized in that, The top cover (1) includes a first pressing end (103), and the base (2) is provided with a second pressing end (203) that is adapted to the first pressing end (103). The power terminal (4) is clamped by the first pressing end (103) and the second pressing end (203).

5. A damping switch with stable pressing force according to claim 1, characterized in that, The base (2) includes a fixed sleeve (204), and the fixed sleeve (204) is vertically arranged on the base (2). The lower end of the reset spring (6) is fitted onto the fixed sleeve (204).

6. A damping switch with stable pressing force according to claim 1, characterized in that, The paddle (5) includes an abutting protrusion (501). The paddle (5) is provided with an abutting protrusion (501) at a position corresponding to the pad (7). The abutting protrusion (501) abuts against the pad (7).

7. A damping switch with stable pressing force according to claim 6, characterized in that, The gasket (7) is a circular plate structure, and the gasket (7) is fixedly laid on the upper end of the return spring (6).

8. A damping switch with stable pressing force according to claim 6, characterized in that, The rotation point of the toggle switch (3) and the abutment protrusion (501) are vertically aligned, and the toggle switch (3) can drive the lever (5) to move up and down around the abutment protrusion (501).

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