A bidirectional push button switch

Abstract

This utility model discloses a two-way push-button switch, including a base, a top cover, a button, a waterproof ring, a connector, and a PCB board. Tactile switches are located on both sides of the PCB board, and adapter pressing heads are located on both sides of the button. The top cover covers the base. The key improvement lies in the following: the top cover has a raised rocker step on one side of the button, with a first contact plane at the top of the rocker step contacting the top wall of the button; elastic retaining rings are located on both sides of the button, with a second contact plane on the bottom surface of the retaining groove; and retaining steps are located on both sides of the top cover, with a third contact plane on the bottom surface that adapts to the second contact plane; the rocker step, elastic retaining rings, and retaining steps are all located between the two pressing heads. This design uses multiple sets of planar mating surfaces instead of traditional circular mating surfaces, effectively limiting the radial displacement of the button relative to the top cover, preventing the button from wobbling left and right, and ensuring the alignment accuracy between the pressing heads and the tactile switches; at the same time, it constrains the button pressing trajectory, preventing accidental pressing caused by button tilting when pressing one side or the middle, and eliminating circuit malfunctions.

Description

Technical Field

[0001] This utility model relates to the field of two-way push-button switch technology, and specifically to a two-way push-button switch. Background Technology

[0002] Two-way push-button switches are a common electronic control component, widely used in home appliances, industrial control equipment, automotive electronics, and smart terminals. Their core function is to switch the circuit on and off or trigger different functions by pressing different sides of the button, providing users with a convenient two-way control experience.

[0003] In existing bidirectional push-button switches, the structural design typically includes core components such as a base, top cover, button, waterproof ring, connector, and PCB board. The PCB board has tactile switches on both sides, and the button has corresponding pressing heads on both sides that mate with the tactile switches. Pressing one side of the button triggers the corresponding tactile switch, thus achieving the control function. However, current switches generally use a circular surface contact method for assembly and positioning of the button and top cover.

[0004] This circular surface mating positioning structure has significant technical defects: Firstly, due to the lack of stable radial limiting in the circular surface contact, the button is prone to wobbling relative to the top cover after assembly. As the switch is used more frequently, this wobbling gradually intensifies, potentially leading to a decrease in the alignment accuracy between the button and the tactile switch, affecting the sensitivity of the pressing operation, and in severe cases, damaging the tactile switch, ultimately causing the entire switch to malfunction, reducing the product's lifespan and reliability. Secondly, the circular surface mating cannot effectively constrain the button's pressing trajectory. In actual use, when the user presses one edge or the middle area of ​​the button, uneven force can easily cause the button to tilt, resulting in both pressing heads simultaneously contacting and triggering the tactile switch, causing a "false press." This false press problem can cause circuit malfunctions, affecting not only the user experience but also, in scenarios with high control precision requirements such as industrial control and automotive electronics, potentially leading to safety hazards or equipment failures, failing to meet the product's requirements for control accuracy.

[0005] Therefore, optimizing the positioning and mating structure between the button and the top cover in a two-way push-button switch, solving the problems of easy button wobbling and accidental pressing, and improving the reliability and operational accuracy of the switch have become urgent technical challenges to be addressed in the design and improvement of such products. Utility Model Content

[0006] To address the shortcomings of the prior art, this utility model provides a two-way push-button switch.

[0007] The technical solution adopted by this utility model is: a two-way push button switch, including a base, a top cover, a button, a waterproof ring, a connector and a PCB board. The PCB board is provided with tactile switches on both sides, and the button is provided with pressing heads that cooperate with the tactile switches on both sides. The top cover is closed on the base. A raised rocker step is provided on the step on one side of the top cover where the button is located, and the top of the rocker step has a first contact plane that contacts the top wall of the button. The button is provided with elastic buckles on both sides, and the bottom surface of the buckle groove of the elastic buckle has a second contact plane. The top cover is provided with buckle steps on both sides that are connected to the buckle groove, and the bottom surface of the buckle step has a third contact plane that is adapted to the second contact plane. The rocker step, elastic buckle, and locking step are all located in the middle of the two pressing heads.

[0008] Furthermore, notches are provided on both sides of the elastic buckle.

[0009] Furthermore, the two sides of the rocker step are provided with rounded corners.

[0010] Furthermore, the waterproof ring is located below the top cover, and guide grooves are provided on both sides of the waterproof ring. Guide ribs that are adapted to the guide grooves are provided on the inner wall of the top cover.

[0011] Furthermore, the top cover is provided with a pressing through hole, the waterproof ring has a connecting part that passes through the pressing through hole, the connecting part is provided with a cross-shaped connecting groove, and the pressing head is a cross-shaped structure that is adapted to the cross-shaped connecting groove.

[0012] Furthermore, the PCB board and waterproof ring are fixed to the top cover with bolts.

[0013] Furthermore, a light guide strip is installed in the slot of the button.

[0014] The beneficial effects of this utility model are: 1. Solving the button wobbling problem: By having the first contact plane of the upper cover rocker step contact the top wall of the button, and the third contact plane of the locking step adapts to the second contact plane of the elastic buckle, the original circular surface fit is changed to a planar fit, forming a stable radial limit, effectively preventing the button from wobbling left and right relative to the upper cover, ensuring the alignment accuracy of the button and the tactile switch, and extending the service life of the switch.

[0015] 2. Prevent accidental button presses: The planar fit effectively constrains the button pressing trajectory, preventing the button from tilting due to uneven force when pressing one side or the middle of the button. It also avoids the simultaneous triggering of the tactile switch by both pressing heads, ensuring operational accuracy and eliminating circuit malfunctions and safety hazards caused by accidental presses.

[0016] 3. Improve product performance: The optimized positioning structure enhances the sensitivity and reliability of switch operation, adapts to the control precision requirements of various scenarios such as home appliances and industrial control, and improves the user experience.

[0017] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0021] Figure 3 This is an exploded view of the present invention.

[0022] Figure 4 This is a schematic diagram of the waterproof ring structure.

[0023] Figure 5 This is a schematic diagram of the upper cover.

[0024] Figure 6 This is a schematic diagram of the bottom of the top cover.

[0025] Figure 7 for Figure 3 Enlarged diagram of point A in the middle.

[0026] Figure 1-7 In the middle: 1. Base; 2. Top cover; 3. Button; 4. Waterproof ring; 5. Connector; 6. PCB board; 7. Tactile switch; 8. Press head; 9. Rocker step; 10. First contact plane; 11. Elastic buckle; 12. Second contact plane; 13. Snap-fit ​​step; 14. Third contact plane; 15. Notch; 16. Rounded corner; 17. Guide groove; 18. Guide rib; 19. Press through hole; 20. Connecting part; 21. Cross-shaped connecting groove; 22. Bolt; 23. Light guide strip. Detailed Implementation

[0027] 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.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] This utility model provides a two-way push-button switch.

[0030] In this embodiment, refer to Figure 1-7 The bidirectional push button switch includes a base 1, a top cover 2, a button 3, a waterproof ring 4, a connector 5, and a PCB board 6. Tactile switches 7 are provided on both sides of the PCB board, and pressing heads 8 that cooperate with the tactile switches are provided on both sides of the button. The top cover 2 covers the base. A raised rocker step 9 is provided on the step on one side of the top cover where the button is located, and the top of the rocker step 9 has a first contact plane 10 that contacts the top wall of the button. The button is provided with elastic buckles 11 on both sides, and the bottom surface of the buckle groove of the elastic buckle has a second contact plane 12. The top cover is provided with buckle steps 13 on both sides that are connected to the buckle groove. The bottom surface of the buckle step 13 has a third contact plane 14 that is adapted to the second contact plane 12. The rocker step, elastic buckle, and locking step are all located in the middle of the two pressing heads.

[0031] In the above technical solution, a raised rocker step is provided on the step on one side of the button on the upper cover, so that the first contact plane at the top of the rocker step forms a surface contact with the top wall of the button; at the same time, elastic buckles are provided on both sides of the button, and the second contact plane of the bottom surface of the elastic buckle engaging with the third contact plane that matches the bottom surface of the engagement step on both sides of the upper cover achieves surface contact. The rocker step, elastic buckles, and engagement step are all arranged between the pressing head. This structure replaces the traditional circular surface engagement with multiple sets of planar engagements, constructing a multi-directional positioning constraint between the button and the upper cover.

[0032] It effectively limits the radial displacement of the button relative to the top cover, preventing the button from wobbling left and right, ensuring the alignment accuracy between the pressing head and the tactile switch on the PCB board, reducing the risk of tactile switch damage caused by shaking, and extending the switch's service life; at the same time, the planar fit forms a precise constraint on the button pressing trajectory, preventing the pressing heads on both sides from triggering the tactile switch simultaneously when the button is tilted when pressing one side or the middle, eliminating accidental pressing, improving the accuracy of switch operation, and meeting the control accuracy requirements in multiple scenarios.

[0033] Specifically, the elastic buckle has notches 15 on both sides.

[0034] In this embodiment, notches 15 are made on both sides of the elastic buckle. The notch structure can change the stress distribution of the elastic buckle, so that the elastic buckle can generate more reasonable elastic deformation along the notch during the assembly and disassembly process, reduce the assembly resistance between the elastic buckle and the upper cover fastening step, and at the same time avoid permanent damage to the elastic buckle due to excessive deformation.

[0035] Specifically, the two sides of the rocker step are provided with rounded corners 16.

[0036] In this embodiment, rounded corners are provided on both sides of the rocker step. The rounded corner structure can eliminate the sharp edges on both sides of the rocker step, making the button and the rocker step fit more smoothly.

[0037] Specifically, the waterproof ring is located below the top cover, and guide grooves 17 are provided on both sides of the waterproof ring. Guide ribs 18 that are adapted to the guide grooves are provided on the inner wall of the top cover.

[0038] In this embodiment, the waterproof ring is positioned below the upper cover. Guide grooves are formed on both sides of the waterproof ring, creating a concave-convex fit with the guide ribs adapted on the inner wall of the upper cover. During assembly, the guide ribs slide along the guide grooves, providing precise positioning guidance for the assembly of the waterproof ring and the upper cover. This ensures that the waterproof ring does not shift during the assembly of the upper and lower covers, allowing the waterproof ring to accurately cover the gap between the upper cover and the base.

[0039] Specifically, the top cover is provided with a pressing through hole 19, the waterproof ring has a connecting part 20 passing through the pressing through hole 19, the connecting part is provided with a cross-shaped connecting groove 21, and the pressing head is a cross-shaped structure adapted to the cross-shaped connecting groove 21.

[0040] In this embodiment, a pressing through hole is provided on the top cover so that the connecting part of the waterproof ring passes through the through hole. At the same time, a cross-shaped connecting groove is opened on the connecting part, and the pressing head is designed as a matching cross-shaped structure. Through the concave and convex fit between the cross-shaped connecting groove and the cross-shaped pressing head, the button and the waterproof ring can be detachably connected. Moreover, the cross-shaped structure can restrict the relative rotation between the button and the waterproof ring, ensuring accurate transmission of the pressing action.

[0041] Specifically, the PCB board and waterproof ring are fixed to the top cover by bolts 22.

[0042] In this embodiment, bolts are used to fix the PCB board and waterproof ring together to the top cover. By utilizing the rigid connection characteristics of the bolts, the PCB board, waterproof ring and top cover form an integrated fixed structure.

[0043] Specifically, a light guide strip 23 is installed in the slot of the button.

[0044] In this embodiment, a light guide strip is installed within the slot of the button. The light guide strip can receive light from internal or external light sources and, through its own light transmission characteristics, evenly disperse and transmit the light to the button surface. The slot structure provides a stable installation and positioning space for the light guide strip, ensuring no relative displacement between the light guide strip and the button, and guaranteeing a stable light transmission path.

[0045] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A two-way push-button switch, comprising a base, a top cover, a button, a waterproof ring, a connector, and a PCB board, wherein tactile switches are provided on both sides of the PCB board, and pressing heads cooperating with the tactile switches are provided on both sides of the button, and the top cover is fitted onto the base, characterized in that: The upper cover is provided with a raised rocker step on the step on one side of the button, and the top of the rocker step has a first contact plane that contacts the top wall of the button. The button is provided with elastic buckles on both sides, and the bottom surface of the buckle groove of the elastic buckle has a second contact plane. The top cover is provided with buckle steps on both sides that are connected to the buckle groove, and the bottom surface of the buckle step has a third contact plane that is adapted to the second contact plane. The rocker step, elastic buckle, and locking step are all located in the middle of the two pressing heads.

2. The two-way push-button switch according to claim 1, characterized in that: The elastic buckle has notches on both sides.

3. The two-way push-button switch according to claim 1, characterized in that: The rocker steps have rounded corners on both sides.

4. The two-way push-button switch according to claim 1, characterized in that: The waterproof ring is located below the top cover, and guide grooves are provided on both sides of the waterproof ring. Guide ribs that are adapted to the guide grooves are provided on the inner wall of the top cover.

5. The two-way push-button switch according to claim 4, characterized in that: The top cover is provided with a pressing through hole, the waterproof ring has a connecting part that passes through the pressing through hole, the connecting part is provided with a cross-shaped connecting groove, and the pressing head is a cross-shaped structure that is adapted to the cross-shaped connecting groove.

6. The two-way push-button switch according to claim 5, characterized in that: The PCB board and waterproof ring are fixed to the top cover with bolts.

7. The two-way push-button switch according to claim 1, characterized in that: A light guide strip is installed in the slot of the button.

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