Waterproof button switch with balanced internal and external pressure
Through structural designs such as sealing sleeves, rubber pads and rubber parts, waterproof button switches with balanced internal and external pressures are achieved, solving the problem of difficult to balance waterproof performance and cost in the prior art, and achieving isolation of the internal and external environment and piston movement of the key structure.
Patent Information
- Application Number
- CN202422414941.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Existing push button switches are difficult to balance between waterproof performance and cost. Smaller push button switches have insufficient waterproof performance due to imbalance of internal and external pressures. Large push button switches have high cost and cannot completely prevent water vapor from entering.
A waterproof button switch with an internal and external pressure balance is designed, using a sealing sleeve, rubber pad and rubber parts structure. The gap is filled with the sealing gasket, the rubber piece sealing port and the engagement connection is formed to form an internal pressure cavity to achieve isolation of the internal and external environment, and the opening and closing of the switch is controlled through the telescopic and contraction of the rubber piece.
It achieves complete isolation of the internal and external environment, reduces the construction development cost, while maintaining good waterproof performance and sliding piston movement of the key structure.
Smart Images
Figure CN223155879U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof switches, in particular to an internal and external pressure balanced waterproof push-button switch. Background Technique
[0002] A push-button switch, also known as a control button (referred to as a button for short), is a low-voltage electrical appliance that is manually pressed and can automatically reset after being released. When the button is pressed, the internal circuit is connected, and a signal is sent out to the domain controller, and control is realized through relevant actuators, such as functions of opening / closing a car door, turning on / off a hazard warning light, etc. There are many types of such switches, such as a warning light switch inside a vehicle, a car door opening and closing switch, etc.
[0003] For existing push-button switches with a small size, due to their small internal cavity and small pressing stroke, in order to ensure their waterproof performance, the internal cavity is directly completely isolated from the external environment. When pressed, the internal cavity space will shrink, and the internal pressure will be greater than the external environment pressure, resulting in an imbalance between the internal and external pressures; for push-button switches with a large size, a waterproof breathable valve is installed, but the cost of adding a waterproof breathable valve is relatively large, the part structure is complex, resulting in an increase in development costs, and the breathable valve cannot prevent water vapor from entering the product internal cavity, thereby corroding the circuit board and causing the product function to fail.
[0004] Therefore, it is necessary to provide a new internal and external pressure balanced waterproof push-button switch to solve the above technical problems. Content of the Utility Model
[0005] The technical problem solved by the utility model is to provide an internal and external pressure balanced waterproof push-button switch that can completely isolate the internal cavity from the external environment and reduce the construction development cost.
[0006] To solve the above technical problems, the internal and external pressure balanced waterproof push-button switch provided by the utility model includes: a housing, a cavity is provided inside the bottom end of the housing; a button structure, the button structure is installed at the center position of the top surface of the housing, the button structure includes a sealing sleeve, and the sealing sleeve is fixed to the top surface of the housing; a base structure, the base structure is installed at the bottom end of the housing, the base structure includes a connecting seat, an internal cavity, a clamping block and a ventilation groove, the connecting seat is installed on the bottom surface of the housing, the internal cavity is provided inside the top end of the connecting seat, the clamping block is fixed to the side wall of the connecting seat, the ventilation groove is provided at one end inside the connecting seat, and a through port is provided at the bottom end of the ventilation groove, and the external space of the connecting seat is communicated with the internal cavity through the through port; a rubber part, the shape of the rubber part is a circular tube with one end open, and the cross-sectional shape is corrugated, and the rubber part is adhesively fixed inside the ventilation groove with the opening facing downwards; a circuit board, the circuit board is installed at one end inside the bottom surface of the internal cavity.
[0007] Preferably, the button structure further includes a button and a trigger plate. The button is slidably connected to the inside of the sealing sleeve, and the trigger plate is fixed to one end of the side wall at the bottom end of the button.
[0008] Preferably, a rubber pad is provided between the button and the sealing sleeve, and a piston state is formed between the button and the sealing sleeve through the rubber pad.
[0009] Preferably, a sealing gasket is clamped and fixed between the connection points of the housing and the sealing sleeve, and the sealing gasket seals the gap at the connection point between the sealing sleeve and the housing.
[0010] Preferably, a card slot corresponding to the card block is provided on the side wall at the bottom end of the housing, and the housing and the connection seat are connected by the engagement of the card block and the card slot.
[0011] Preferably, a sealing ring is adhesively fixed to the top surface inside the housing, and the sealing ring is clamped between the top end of the connection seat and the inside of the housing, and the inner cavity and the cavity provided at the bottom end of the housing form an internal pressure cavity.
[0012] Preferably, the bottom opening of the rubber part corresponds to the position of the through port, and the maximum diameter of the rubber part is equal to the inner diameter of the ventilation groove, and the rubber part closes the through port provided at the bottom end of the ventilation groove.
[0013] Preferably, the connecting wire is connected between the top surface of the rubber part and one end of the bottom surface of the button, and the connecting wire is vertical.
[0014] Compared with the related art, the internal and external pressure balanced waterproof push-button switch provided by the present invention has the following beneficial effects:
[0015] The present utility model provides an internal and external pressure balanced waterproof push-button switch. Firstly, a sealing gasket is provided between the connection points of the button structure and the housing structure. The sealing gasket can fill and seal the gap between the button structure and the housing structure, preventing external moisture from penetrating through the gap. And a rubber gasket is arranged in the button structure, which can make the button structure form a piston movement when pressed. This can not only achieve the waterproof effect when the button structure is moving, but also not affect the sliding of the button structure. Through the internal space of the base structure, the circuit board and the rubber part can be installed at different positions. The rubber part can seal the through hole provided at the bottom end of the base structure, and the rubber part is connected to the bottom end of the button structure through the connecting part. Then the housing is installed on the top end of the base structure, and the engaging position of the housing and the base structure is defined by the engaging of the clamping block and the clamping groove, so that an internal pressure cavity is formed inside between the housing and the base. Under the action of the sealing ring, the internal pressure cavity is completely sealed, thus effectively achieving the waterproof effect inside the switch. And by pressing the button, the pressure inside the internal pressure cavity can be driven, thereby making the rubber part expand and contract to control the closing and opening of the switch. This switch has the advantages of being able to completely isolate the internal cavity from the external environment and reducing the construction development cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of the internal and external pressure balanced waterproof push-button switch provided by the present utility model;
[0017] Figure 2 is Figure 1 a schematic structural diagram of the overall front view connection state section shown;
[0018] Figure 3 is Figure 1 a schematic structural diagram of the overall top view shown;
[0019] Figure 4 is Figure 3 a schematic structural diagram of the section shown;
[0020] Figure 5 is Figure 1 a schematic structural diagram of the overall section shown.
[0021] Reference numerals in the figure: 1, button structure; 11, button; 12, sealing plate sleeve; 13, trigger plate; 14, limiting block; 2, housing; 3, circuit board; 4, rubber part; 5, base structure; 51, connecting seat; 52, internal cavity; 53, clamping block; 54, ventilation groove; 6, connecting wire; 7, rubber gasket; 8, sealing gasket; 9, sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0023] Please refer to Figures 1 to 5 , Figure 1 which is a schematic structural diagram of a preferred embodiment of the internal and external pressure balanced waterproof push-button switch provided by the present utility model; Figure 2 is Figure 1 a schematic structural diagram of the overall front view connection state section shown in; Figure 3 is Figure 1 a schematic structural diagram of the overall top view shown in; Figure 4 is Figure 3 a schematic structural diagram of the section shown in; Figure 5 is Figure 1 a schematic structural diagram of the overall section shown in. The internal and external pressure balanced waterproof push-button switch includes: a housing 2, with a cavity provided inside the bottom end of the housing 2; a button structure 1, which is installed at the central position on the top surface of the housing 2, and the button structure 1 includes a sealing sleeve 12, and the sealing sleeve 12 is fixed to the top surface of the housing 2; a base structure 5, which is installed at the bottom end of the housing 2, and the base structure 5 includes a connecting seat 51, an inner cavity 52, a clamping block 53, and a ventilation groove 54. The connecting seat 51 is installed on the bottom surface of the housing 2, the inner cavity 52 is provided inside the top end of the connecting seat 51, the clamping block 53 is fixed to the side wall of the connecting seat 51, the ventilation groove 54 is provided at one end inside the connecting seat 51, and a through port is provided at the bottom end of the ventilation groove 54, and the external space of the connecting seat 51 communicates with the inner cavity 52 through the through port; a rubber part 4, the shape of the rubber part 4 is a circular tube with one end open, and the cross-sectional shape is corrugated, and the rubber part 4 is adhesively fixed inside the ventilation groove 54 with the opening facing downwards; a circuit board 3, which is installed at one end inside the bottom surface of the inner cavity 52.
[0024] In the specific implementation process, as Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, the button structure 1 further includes a button 11 and a trigger plate 13. The button 11 is slidably connected inside the sealing sleeve 12, and the trigger plate 13 is fixed to one end of the bottom side wall of the button 11; a rubber pad 7 is provided between the button 11 and the sealing sleeve 12, and a piston state is formed between the button 11 and the sealing sleeve 12 through the rubber pad 7; a sealing pad 8 is clamped and fixed between the connection points of the housing 2 and the sealing sleeve 12, and the sealing pad 8 seals the gap at the connection point between the sealing sleeve 12 and the housing 2.
[0025] It is convenient to seal between the button 11 and the sealing sleeve 12 through the rubber pad 7, so that the button 11 can perform a vertical piston movement through the limit of the trigger plate 13, and the sealing pad 8 can seal the gap at the connection point between the sealing sleeve 12 and the housing, making it in a sealed state.
[0026] In the specific implementation process, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, a card slot corresponding to the block 53 is provided on the bottom side wall of the housing 2, and the housing 2 is connected to the connection base 51 through the engagement of the block 53 and the card slot; a sealing ring 9 is adhesively fixed to the top surface inside the housing 2, and the sealing ring 9 is clamped between the top end of the connection base 51 and the inside of the housing 2, and the inner cavity 52 and the cavity provided at the bottom end of the housing 2 form an internal pressure chamber.
[0027] It is convenient to make the housing 2 and the connection base 51 be snap-connected through the block 53, and at the same time make the sealing ring 9 seal the gap between the connection base 51 and the housing 2, making the inner cavity 52 in a sealed state.
[0028] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 5 shown, the bottom opening of the rubber part 4 corresponds to the position of the through port, and the maximum diameter of the rubber part 4 is equal to the inner diameter of the ventilation groove 54, and the rubber part 4 closes the through port provided at the bottom end of the ventilation groove 54.
[0029] It is convenient to make the rubber part 4 be able to close the through port, so that the outside communicates with the inside of the rubber part 4 through the through port and the opening.
[0030] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 5 shown, the connecting line 6 is connected between the top surface of the rubber part 4 and one end of the bottom surface of the button 11, and the connecting line 6 is vertical.
[0031] It is convenient to enhance the reset efficiency of the rubber part 4, so that the rubber part 4 will not fail to reset due to the friction with the ventilation groove 54.
[0032] The working principle of the internal and external pressure balance waterproof push-button switch provided by the present utility model is as follows:
[0033] In use, first, the button 11 is fixed at the center position on the top surface of the housing 2 through the sealing sleeve 12. The connection point between the sealing sleeve 12 and the housing 2 clamps the sealing gasket 8, causing the sealing gasket 8 to deform due to the clamping force generated when the sealing sleeve 12 and the housing 2 are fixed, and blocking the gap between them. A rubber gasket 7 is provided between the button 11 and the sealing sleeve 12 to seal the gap between the button 11 and the sealing sleeve 12, so as to prevent air leakage when the button 11 slides inside the sealing sleeve 12. The circuit board 3 is adhesively fixed inside the connection seat 51. Then, the rubber part 4 is connected to one end of the bottom surface of the button 11 through the connecting wire 6. The rubber part 4 has its opening facing downwards and aligns its opening with the through port position. The rubber part 4 is adhesively fixed inside the ventilation groove 54, so that the rubber part 4 closes the through port on the bottom surface of the connection seat 51. The housing 2 is installed on the top side wall of the connection seat 51 through the engagement of the clamping block 53 and the clamping groove. Thus, the internal cavity at the lower end of the housing 2 and the internal cavity 52 form an internal pressure chamber. The gap between the connection seat 51 and the housing 2 is sealed by the sealing ring 9, separating the internal cavity 52 from the external environment and playing a waterproof role. At the same time, the bottom end of the trigger plate 13 abuts against the trigger button installed on the circuit board 3. By pressing the button 11, the circuit board 3 can be triggered to connect or disconnect the power supply through the trigger button. Since the rubber part 4 has a corrugated structure, when the button 11 is pressed, the pressure change inside the internal cavity 52 will cause the rubber part 4 to compress downward like a spring, resulting in an increase in the space of the product's internal cavity 52 until the internal and external air pressures are balanced and the pressure acting force is lost. When the pressing ends, the button 11 moves upward, and the space of the internal cavity 52 increases. When the external environmental pressure is greater than the pressure in the internal cavity 52, the rubber part 4 will generate an upward thrust, prompting the rubber part 4 to move upward and reducing the space of the internal cavity 52 until the internal and external pressures are balanced. This switch has the advantages of being able to completely isolate the internal cavity 52 from the external environment and reducing the construction development cost.
[0034] Compared with the related art, the internal and external pressure balanced waterproof push-button switch provided by the present utility model has the following beneficial effects:
[0035] The utility model provides an internal and external pressure balanced waterproof push-button switch. Firstly, a sealing gasket 8 is arranged between the connection points of the button structure and the housing 2 structure. The sealing gasket 8 can fill and seal the gap between the button structure and the housing 2 structure, so that external moisture cannot penetrate through the gap. And a rubber gasket 7 is arranged in the button structure 1, which can enable the button structure to form a piston motion when being pressed. It can not only achieve the waterproof effect when the button structure moves, but also not affect the sliding of the button structure. Through the internal space of the base structure 5, the circuit board 3 and the rubber part 4 can be installed at different positions. The rubber part 4 can seal the through hole arranged at the bottom end of the base structure 5, and the rubber part 4 is connected with the bottom end of the button structure through the connecting piece. Then the housing 2 is installed on the top end of the base structure 5, and the engaging position between the housing 2 and the base structure 5 is defined by the engaging of the clamping block 53 and the clamping groove, so that an internal pressure cavity is formed inside between the housing 2 and the base. Under the action of the sealing ring 9, the internal pressure cavity is completely in a sealed state, thus effectively achieving the waterproof effect inside the switch. And by pressing the button 11, the pressure inside the internal pressure cavity can be driven, so that the rubber part 4 expands and contracts, controlling the closing and opening of the switch. This switch has the advantages of being able to completely isolate the internal cavity 52 from the external environment and reducing the construction development cost.
[0036] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present utility model.
Claims
1. An internal and external pressure balanced waterproof push-button switch, characterized in that, Comprising; A housing (2), inside the bottom end of which there is a cavity; A button structure (1), which is installed at the center position of the top surface of the housing (2), and the button structure (1) includes a sealing sleeve (12), and the sealing sleeve (12) is fixed to the top surface of the housing (2); A base structure (5), which is installed at the bottom end of the housing (2), and the base structure (5) includes a connecting seat (51), an inner cavity (52), a clamping block (53) and a ventilation groove (54). The connecting seat (51) is installed on the bottom surface of the housing (2), and the inner cavity (52) is provided inside the top end of the connecting seat (51). The clamping block (53) is fixed to the side wall of the connecting seat (51), and the ventilation groove (54) is provided at one end inside the connecting seat (51), and there is a through port at the bottom end of the ventilation groove (54), and the external space of the connecting seat (51) is communicated with the inner cavity (52) through the through port; A rubber part (4), the shape of which is a circular tube with one end open, and the cross-sectional shape is corrugated, and the rubber part (4) is adhesively fixed inside the ventilation groove (54) with the opening facing downwards; A circuit board (3), which is installed at one end inside the bottom surface of the inner cavity (52).
2. The internal and external pressure balanced waterproof push-button switch according to claim 1, characterized in that, The button structure (1) further includes a button (11) and a trigger plate (13), the button (11) is slidably connected inside the sealing sleeve (12), and the trigger plate (13) is fixed to one end of the bottom side wall of the button (11).
3. The internal and external pressure balanced waterproof push-button switch according to claim 2, wherein There is a rubber pad (7) between the button (11) and the sealing sleeve (12), and a piston state is formed between the button (11) and the sealing sleeve (12) through the rubber pad (7).
4. The internal and external pressure balanced waterproof push-button switch according to claim 2, wherein A sealing gasket (8) is clamped and fixed between the connection points of the housing (2) and the sealing sleeve (12), and the sealing gasket (8) seals the gap at the connection point between the sealing sleeve (12) and the housing (2).
5. The internal and external pressure balanced waterproof push-button switch according to claim 1, characterized in that, A card slot corresponding to the clamping block (53) is provided on the bottom side wall of the housing (2), and the housing (2) and the connecting seat (51) are connected through the engagement of the clamping block (53) and the card slot.
6. The internal and external pressure balanced waterproof push-button switch according to claim 3, characterized in that, A sealing ring (9) is adhesively fixed to the top surface inside the housing (2), and the sealing ring (9) is clamped between the top end of the connecting seat (51) and the inside of the housing (2), and the inner cavity (52) and the cavity provided at the bottom end of the housing (2) form an internal pressure chamber.
7. The internal and external pressure balanced waterproof push-button switch according to claim 1, characterized in that, The bottom end opening of the rubber part (4) corresponds to the position of the through port, and the maximum diameter of the rubber part (4) is equal to the inner diameter of the ventilation groove (54), and the rubber part (4) closes the through port provided at the bottom end of the ventilation groove (54).
8. The internal and external pressure balanced waterproof push-button switch according to claim 2, characterized in that, A connecting wire (6) is connected between the top surface of the rubber part (4) and one end of the bottom surface of the button (11), and the connecting wire (6) is vertical.