Small-size and large-current key dustproof switch
By designing a small-sized dustproof button switch, using a structure including a base, main housing, terminals, and waterproof sleeve, the problem of large size and poor dustproof performance of existing button switches is solved, achieving small-sized, high-current circuit switching and dust protection.
Patent Information
- Application Number
- CN202422641038.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing push-button switches are bulky, have limited dustproof performance, and cannot meet the requirements of small size and high current.
A small-sized dustproof button switch was designed, which adopts a structure including a base, main housing, terminals, contact pieces, and waterproof sleeve. Circuit switching is achieved by pressing the contact pieces down on the terminals through the button and rotor, and the waterproof sleeve is used to prevent dust from entering.
It achieves a small size and high current switching design, while effectively preventing dust from entering and ensuring stable switching performance.
Smart Images
Figure CN223501723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switches, specifically to a small-sized, high-current dustproof push-button switch. Background Technology
[0002] A push-button switch is a switch that uses a button to push a transmission mechanism to open or close the moving contact and switch the circuit. Push-button switches are a simple and widely used control electrical appliance. Conventional switches can only handle 6A 250VAC current, and they are large in size and have poor dust protection. Dust entering the gap between the moving and stationary contacts can affect the switch performance. Utility Model Content
[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a small-sized, high-current dustproof push-button switch, the specific technical solution of which is as follows:
[0004] A small-volume, high-current dustproof push-button switch includes a base, a main housing, a first terminal, a second terminal, a contact piece, a small spring, a waterproof sleeve, a large spring, a rotor, and a push-button. The main housing is mounted on top of the base, forming an installation chamber between the base and the main housing. The first terminal, the second terminal, and the contact piece are installed in the installation chamber. Under normal conditions, the first terminal, the second terminal, and the contact piece do not contact each other. The base has a positioning post, and a small spring is fitted on the outside of the positioning post. The upper end of the small spring abuts against the inner wall of the waterproof sleeve, which is installed at the center of the contact piece. The rotor and the push-button are mounted on the upper end of the main housing. One end of the large spring abuts against the inner wall of the rotor, and the other end abuts against the contact piece. When the push-button is pressed to the desired position, the rotor drives the contact piece to press down and contact the first terminal and the second terminal.
[0005] As a preferred embodiment of this utility model, the inner side of the base is provided with multiple long grooves and multiple short grooves, the depth of the long grooves is greater than the depth of the short grooves, and an inclined surface is provided between the long grooves and the short grooves. Multiple button protrusions are provided on the outer side of the button, and the button protrusions are slidably installed in the long grooves. Multiple rotor protrusions are provided on the outer side of the rotor, and the rotor protrusions are slidably installed in the long grooves. When the button is pressed, the button protrusion pushes the rotor protrusion and moves out of the long groove, and the rotor protrusion enters the short groove under the drive of the inclined surface.
[0006] As a preferred embodiment of this utility model, the bottom of the button is provided with button teeth, and the rotor is provided with corresponding rotor teeth.
[0007] As a preferred embodiment of this utility model, the waterproof sleeve is an inverted T-shape, with the lower end of the waterproof sleeve abutting against the contact piece, and the upper end of the waterproof sleeve passing through the contact piece.
[0008] As a preferred embodiment of this utility model, the base is provided with insert posts at the four corners, and the main housing is provided with insertion holes corresponding to the positions of the insert posts.
[0009] As a preferred embodiment of this utility model, moving contacts are installed at both ends of the contact piece, and stationary contacts are installed above the first terminal and the second terminal respectively. When the contact piece is pressed down, the moving contacts contact the stationary contacts.
[0010] As a preferred embodiment of this utility model, the base has a length of 18mm, a height of 13.3mm, a width of 13mm, and a rated current of 16A and 250VAC.
[0011] Beneficial effects: The dustproof button switch of this utility model has a compact structure with small gaps between its various parts. Moreover, the first terminal, the second terminal, and the contact piece are installed in the mounting cavity, and the waterproof sleeve is installed in the center of the contact piece. The waterproof sleeve can effectively prevent dust from entering and affecting the switch performance. Attached Figure Description
[0012] Figure 1 This is a perspective view of the present invention;
[0013] Figure 2 This is an exploded view of the present invention;
[0014] Figure 3 This is a top view of the present invention;
[0015] Figure 4 yes Figure 3 Sectional view of AA;
[0016] Figure 5 yes Figure 3 Sectional view of BB;
[0017] Figure 6 This is a perspective view of the main housing of this utility model;
[0018] Figure 7 This is a three-dimensional view of the button and rotor of this utility model. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0020] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 position 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.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 according to the specific circumstances.
[0022] like Figures 1-5 As shown, a small-volume, high-current dustproof button switch includes a base 1, a main housing 2, a first terminal 3, a second terminal 4, a contact piece 5, a small spring 6, a waterproof sleeve 7, a large spring 8, a rotor 9, and a button 10. The main housing 2 is mounted on top of the base 1, forming an installation chamber 11 between the base 1 and the main housing 2. The first terminal 3, the second terminal 4, and the contact piece 5 are installed inside the installation chamber 11. Under normal conditions, the first terminal 3, the second terminal 4, and the contact piece 5 do not contact each other. The base 1 is provided with a positioning post 12, and the small spring 6 is fitted on the outside of the positioning post 12. The upper end of the small spring 6 abuts against the inner wall of the waterproof sleeve 7, which is installed at the center of the contact piece 5. The rotor 9 and the button 10 are mounted on the upper end of the main housing 2, with the button 10 above the rotor 9. One end of the large spring 8 abuts against the inner wall of the rotor 9, and the other end abuts against the contact piece 5. After the button is pressed to the desired position, the rotor 9 drives the contact piece 5 to press down and contact the first terminal 3 and the second terminal 4.
[0023] like Figure 3-7 As shown, the base 1 has multiple long grooves 13 and multiple short grooves 14 on its inner side. The depth of the long grooves 13 is greater than the depth of the short grooves 14. An inclined surface 15 is provided between the long grooves 13 and the short grooves 14 for transition. Multiple button protrusions 16 are provided on the outer side of the button 10. The button protrusions 16 are distributed around the central axis of the button 10. The button protrusions 16 are slidably installed in the long grooves 13. Multiple rotor protrusions 17 are provided on the outer side of the rotor 9. The rotor protrusions 17 are slidably installed in the long grooves 13. When the button is pressed, the button protrusions 16 push against the rotor protrusions 16 and move out of the long grooves 13. The rotor protrusions 17 enter the short grooves 14 under the drive of the inclined surface. At this time, the rotor 9 is in a low position. The rotor 9 is turned on by pressing the contact piece 5 downward through the large spring 8.
[0024] Specifically, button 10 has button teeth at the bottom, and rotor 9 has corresponding rotor teeth. When the rotor is pressed again, the rotor will rise and reset due to the action of the large spring. The waterproof sleeve 7 is an inverted T-shape. The lower end of the waterproof sleeve 7 presses against the contact piece 5, and the upper end of the waterproof sleeve 7 passes through the contact piece. When the waterproof sleeve 7 is pressed down and deformed, the waterproof sleeve will fit more closely to the contact piece 5 due to the action of the small spring 6.
[0025] Specifically, the base 1 has four corner posts 18, and the main housing 2 has corresponding holes 19. Moving contacts are installed at both ends of the contact piece 5, and stationary contacts are installed above the first terminal 3 and the second terminal 4, respectively. When the contact piece 5 is pressed down, the moving contact contacts the stationary contact to achieve switch conduction. In addition, the base 1 has a length of 18mm, a height of 13.3mm, a width of 13mm, and a rated current of 16A and 250VAC, meeting the requirements of small size and high current.
[0026] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the protection scope of the present utility model.
Claims
1. A small-volume, high-current dustproof push-button switch, characterized in that: The device includes a base, a main housing, a first terminal, a second terminal, a contact piece, a small spring, a waterproof sleeve, a large spring, a rotor, and a button. The main housing is mounted on top of the base, forming an installation chamber between the base and the main housing. The first terminal, the second terminal, and the contact piece are installed in the installation chamber. Under normal conditions, the first terminal, the second terminal, and the contact piece do not contact each other. The base has a positioning post, and a small spring is fitted on the outside of the positioning post. The upper end of the small spring abuts against the inner wall of the waterproof sleeve, which is installed in the center of the contact piece. The rotor and the button are mounted on the upper end of the main housing. One end of the large spring abuts against the inner wall of the rotor, and the other end abuts against the contact piece. When the button is pressed into place, the rotor drives the contact piece to press down and contact the first terminal and the second terminal.
2. The small-volume, high-current dustproof push-button switch according to claim 1, characterized in that: The base has multiple long slots and multiple short slots on its inner side. The depth of the long slots is greater than the depth of the short slots. An inclined surface is provided between the long slots and the short slots. Multiple button protrusions are provided on the outer side of the button. The button protrusions are slidably installed in the long slots. Multiple rotor protrusions are provided on the outer side of the rotor. The rotor protrusions are slidably installed in the long slots. When the button is pressed, the button protrusion pushes the rotor protrusion out of the long slot, and the rotor protrusion enters the short slot under the drive of the inclined surface.
3. A small-volume, high-current dustproof push-button switch according to claim 2, characterized in that: The button has button teeth at the bottom, and the rotor has corresponding rotor teeth.
4. A small-volume, high-current dustproof push-button switch according to claim 1, characterized in that: The waterproof sleeve is an inverted T-shape, with the lower end of the waterproof sleeve pressing against the contact piece, and the upper end of the waterproof sleeve passing through the contact piece.
5. A small-volume, high-current dustproof push-button switch according to claim 1, characterized in that: The base is provided with insert posts at the four corners, and the main housing is provided with insertion holes corresponding to the positions of the insert posts.
6. A small-volume, high-current dustproof push-button switch according to claim 1, characterized in that: Moving contacts are installed at both ends of the contact piece, and stationary contacts are installed above the first terminal and the second terminal, respectively. When the contact piece is pressed down, the moving contacts contact the stationary contacts.
7. A small-volume, high-current dustproof push-button switch according to claim 1, characterized in that: The base is 18mm long, 13.3mm high, and 13mm wide, with a rated current of 16A and 250VAC.