CN222581006U

CN222581006U - Waterproof button and automobile exterior trim switch

Info

Publication number: CN222581006U
Application number: CN202420591784.9U
Authority: CN
Inventors: 徐明涛; 蹇军; 曹增辉; 辛周恒
Original assignee: Hi P Shanghai Household Appliances Products Co ltd
Current assignee: Hi P Shanghai Household Appliances Products Co ltd
Priority date: 2024-03-25
Filing date: 2024-03-25
Publication date: 2025-03-07
Anticipated expiration: 2034-03-25

Abstract

The utility model adopts a waterproof button and an automobile exterior switch, wherein the waterproof button comprises an upper shell, a lower shell, a waterproof gasket, a slider and an electrical component. Since the electrical component is arranged in the first cavity, the waterproof gasket is provided with an exhaust structure for connecting the second cavity with the outside to maintain the air pressure balance between the second cavity and the outside. Therefore, the utility model seals the electrical component through the first cavity. When the pressing part is pressed or the temperature rises, the increased air pressure in the upper cavity will maintain the internal and external pressure balance through the exhaust pipe of the exhaust structure, thereby ensuring that the appearance of the pressing part is fit and will not bulge outward, and avoiding the problem of high cost caused by the use of a waterproof breathable membrane.

Description

Waterproof button and automobile exterior trim switch

Technical Field

The application relates to the technical field of electronic product keys, in particular to a waterproof key and an automobile exterior switch.

Background

With the continuous improvement of consumption level, the variety of electronic products is more and more increased, the quality requirements of consumers on the electronic products are more and more severe, and especially the waterproof function of the electronic products is becoming a concern of consumers. In the design process, the waterproof design of the key is particularly important, for example, the key is an indispensable element for an automobile exterior switch.

In order to realize complete sealing and waterproofing, the automobile exterior switch in the prior art generally adopts a mode of encapsulating and injecting soft rubber keys and a plastic main body, and completely sealing the whole switch or sealing by adding a waterproof and breathable film. If a complete sealing mode is adopted, the soft rubber key can bulge outwards at high temperature, and if a sealing mode of adding a waterproof breathable film is adopted, the cost is high.

Disclosure of utility model

In view of the above, the present utility model aims to provide a waterproof key and an automotive exterior switch, which solve the technical problems of high cost caused by the fact that a soft rubber key bulges outwards or a waterproof and breathable film is adopted in a sealing manner at high temperature in the prior art.

The utility model provides a waterproof key which is characterized by comprising an upper shell, a lower shell, a waterproof gasket, a sliding block and an electric element, wherein the waterproof gasket is a flexible member, the upper shell is covered on the lower shell, the waterproof gasket is arranged between the upper shell and the lower shell so as to seal a gap between the upper shell and the lower shell, a first cavity is formed between the waterproof gasket and the lower shell, the electric element is arranged in the first cavity, a second cavity is formed between the waterproof gasket and the upper shell, the sliding block can be movably arranged in the second cavity, a pressing part is arranged on the upper shell, the position, which is abutted against the sliding block, of the pressing part is a flexible member so that the sliding block is driven by external force to press the waterproof gasket to trigger the electric element, and an exhaust structure used for communicating the second cavity with the outside is arranged on the waterproof gasket so as to maintain air pressure balance between the second cavity and the outside.

Optionally, the exhaust structure is an exhaust pipe arranged on the waterproof gasket, the electrical element is provided with a first through hole, the lower shell is provided with a second through hole, and the exhaust pipe sequentially passes through the first through hole and the second through hole so as to communicate the second cavity with the outside.

Optionally, a sealing flange is arranged on an outer pipe wall extending out of the lower casing on the exhaust pipe, and the sealing flange abuts against the lower casing to seal the second through hole.

Optionally, the waterproof gasket is concavely provided with a groove matched with the electric element, and the electric element is fixed on the lower shell and is accommodated in the groove.

Optionally, a sealing protrusion is convexly arranged on one side, propped against the lower shell, of the waterproof gasket, a sealing groove corresponding to the sealing protrusion is concavely arranged on the lower shell, and the sealing protrusion is inserted into the sealing groove to seal the first cavity.

Optionally, the periphery side of slider epirelief is equipped with a plurality of spacing sand grip, spacing sand grip is followed the displacement direction of slider extends, the medial surface of last casing epirelief is equipped with a plurality of spacing recesses corresponding with spacing sand grip, spacing sand grip inserts in the spacing recess is in order to be in the in-process of slider displacement is spacing to the slider.

Optionally, conductive particles are arranged on the waterproof gasket, the sliding block is provided with extrusion columns corresponding to the conductive particles, and when the sliding block is driven by external force, the extrusion columns extrude the conductive particles to be in contact with the electrical element.

Optionally, the upper casing is convexly provided with a plurality of buckles, the lower casing is provided with a clamping groove matched with the buckles, and the buckles are clamped with the clamping groove so as to cover the upper casing on the lower casing.

Optionally, the lower casing is convexly provided with a limiting protrusion, the electrical element is provided with a limiting clamping groove corresponding to the limiting protrusion, and the limiting protrusion is clamped in the limiting clamping groove so as to limit the electrical element on the lower casing.

The utility model provides an automobile exterior switch, which comprises the waterproof key of any one of the above.

The utility model has the beneficial effects that:

the utility model adopts a waterproof key, which comprises an upper shell, a lower shell, a waterproof gasket, a sliding block and an electric element, wherein the electric element is arranged in the first cavity, the waterproof gasket is provided with an exhaust structure for communicating the second cavity with the outside so as to maintain the air pressure balance between the second cavity and the outside, therefore, when the electric element is sealed through the first cavity, the air pressure increased in the upper cavity can keep internal and external pressure balance through the exhaust pipe of the exhaust structure under the conditions of pressing the pressing part or temperature rising and the like, so that the appearance of the pressing part is ensured to be fitted, the outward bulge phenomenon can not occur, and the problem of higher cost caused by adopting the waterproof breathable film is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a waterproof key according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a waterproof key according to an embodiment of the present application;

FIG. 3 is an exploded view of a waterproof key according to an embodiment of the present application;

Fig. 4 is an exploded view of another angle of the waterproof key according to the embodiment of the present application.

The reference numerals comprise 1, an upper shell, 11, a pressing part, 12, a limit groove, 13, a buckle, 2, a lower shell, 21, a second through hole, 22, a seal groove, 23, a clamping groove, 24, a limit bulge, 3, a waterproof gasket, 31, an exhaust structure, 311, a seal flange, 32, a groove, 33, a seal bulge, 34, conductive particles, 4, a sliding block, 41, a limit convex strip, 42, an extrusion column, 5, an electric element, 51, a first through hole, 52, a limit clamping groove, 6, a first cavity, 7 and a second cavity.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

It should be further noted that terms such as left, right, upper, and lower in the embodiments of the present application are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.

Referring to fig. 1-4, the present embodiment provides a waterproof key, which is characterized by comprising an upper housing 1, a lower housing 2, a waterproof gasket 3, a slider 4 and an electrical element 5, wherein the waterproof gasket 3 is a flexible member, the upper housing 1 is covered on the lower housing 2, the waterproof gasket 3 is disposed between the upper housing 1 and the lower housing 2 to seal a gap between the upper housing 1 and the lower housing 2, a first cavity 6 is formed between the waterproof gasket 3 and the lower housing 2, the electrical element 5 is disposed in the first cavity 6, a second cavity 7 is formed between the waterproof gasket 3 and the upper housing 1, the slider 4 is movably disposed in the second cavity 7, a pressing portion 11 is disposed on the upper housing 1, a position where the pressing portion 11 abuts against the slider 4 is a flexible member, so that an external force drives the slider 4 to press the waterproof gasket 3 to trigger the electrical element 5, and a second cavity 31 for maintaining air pressure balance between the second cavity 7 and the outside is disposed on the waterproof gasket 3.

Preferably, the upper casing 1 in the present application is a two-shot molding, the pressing part 11 is a silica gel soft key, and other parts of the upper casing 1 are hard plastic structures. The upper shell 1 is molded by double-shot injection or rubber coating, so that good combination of two materials can be ensured, and moisture permeation is effectively prevented. Elasticity and durability silica gel has good elasticity and durability, can withstand long-time pressing without being easily deformed or worn, and is therefore very suitable for manufacturing keys.

Preferably, the waterproof gasket 3 in the present application is made of silica gel. Therefore, the waterproof gasket 3 using the silica gel has higher high temperature resistance and can keep stable performance in a certain temperature range, so that the silica gel key can be used under various environmental conditions, including a high temperature environment. Meanwhile, in the case of using a silicone material for the waterproof gasket 3, the electrical conductivity can be increased by adding a conductive filler (such as carbon black or the like) so that the waterproof gasket 3 can conduct current, thereby realizing the triggering function of the electrical element 5. The waterproof gasket 3 has soft touch feeling and good hand feeling, is comfortable to use, and is suitable for parts requiring frequent touching, such as keys.

Preferably, the electrical component 5 is a PCBA board.

In a possible embodiment, the waterproof gasket 3 seals the gap between the upper housing 1 and the lower housing 2 by using the edge skirt of the waterproof gasket 3 to be matched with the upper housing 1 and the lower housing 2 to perform interference extrusion fit to realize edge sealing. The waterproof gasket 3 in this embodiment has high chemical stability, and can resist corrosion of chemical substances such as moisture, acid and alkali, and is not easy to corrode and deteriorate, so that the waterproof gasket 3 can maintain stable performance in a humid environment. In addition, the waterproof gasket 3 in the present embodiment has a certain flexibility and deformability, and can adapt to the shape of the irregular surface of the upper case 1 or the lower case 2, thereby forming a tighter seal at the joint and the junction, and improving the waterproof effect.

In this embodiment, the waterproof gasket 3 divides the internal cavity formed between the upper case 1 and the lower case 2 into the first cavity 6 and the second cavity 7 which are completely independent, the waterproof gasket 3 and the lower case 2 cooperate to completely seal the first cavity 6 and protect the internal electrical element 5, the first cavity 6 is communicated with the outside through the air exhaust structure 31 of the waterproof gasket 3, and the internal pressure balance can be realized through air exchange when the internal pressure changes, so that the external shape of the pressing part 11 is ensured to be fitted, and the outward bulge phenomenon is not generated.

Referring to fig. 3-4, in a possible embodiment, the exhaust structure 31 is an exhaust pipe disposed on the waterproof gasket 3, the electrical element 5 is provided with a first through hole 51, the lower housing 2 is provided with a second through hole 21, and the exhaust pipe sequentially passes through the first through hole 51 and the second through hole 21 to communicate the second cavity 7 with the outside. The outer peripheral side surface of the exhaust pipe is tightly matched with the second through hole 21, so that the first cavity 6 is completely sealed, and the internal electric element 5 is protected. Specifically, the second through hole 21 is opened at the bottom of the lower case 2.

In a possible embodiment, a sealing flange 311 is provided on the outer pipe wall of the exhaust pipe extending outside the lower housing 2, the sealing flange 311 abutting against the lower housing 2 to seal the second through hole 21. In the present embodiment, the seal flange 311 can further seal the portion of the exhaust pipe that abuts against the second through hole 21, thereby improving the sealing waterproof effect.

In a possible embodiment, the waterproof gasket 3 is concavely provided with a groove 32 adapted to the electric element 5, and the electric element 5 is fixed on the lower housing 2 and is accommodated in the groove 32. In the present embodiment, the electric element 5 may be fixed to the lower case 2 by screws. The groove 32 can form a stopper function for the electric element 5, and can seal and waterproof the member provided on the upper surface of the electric element 5 when the outer peripheral side edge of the electric element 5 abuts against the inner peripheral side of the groove 32.

In a possible embodiment, a sealing protrusion 33 is convexly disposed on a side of the waterproof gasket 3 abutting against the lower housing 2, the lower housing 2 is concavely disposed with a sealing groove 22 corresponding to the sealing protrusion 33, and the sealing protrusion 33 is inserted into the sealing groove 22 to seal the first cavity 6. Since the waterproof requirement of the electric element 5 is higher, the cooperation between the sealing protrusion 33 and the sealing groove 22 can be used as another waterproof sealing line, and the waterproof sealing performance is further improved.

In a possible embodiment, a plurality of limit protruding strips 41 are protruding on the peripheral side surface of the slider 4, the limit protruding strips 41 extend along the displacement direction of the slider 4, a plurality of limit grooves 12 corresponding to the limit protruding strips 41 are recessed on the inner side surface of the upper housing 1, and the limit protruding strips 41 are inserted into the limit grooves 12 to limit the slider 4 in the process of displacement of the slider 4. The cooperation between spacing sand grip 41 and spacing recess 12 effectively prevents that slider 4 from taking place the skew at the displacement in-process, ensures waterproof button's performance.

In a possible embodiment, the waterproof gasket 3 is provided with conductive particles 34, the slide 4 is provided with pressing posts 42 corresponding to the conductive particles 34, and the pressing posts 42 press the conductive particles 34 into contact with the electric element 5 when the slide 4 is driven by an external force. Specifically, a pressing stroke space is formed between the conductive particles 34 and the electric element 5, and the pressing stroke space functions to ensure that the conductive particles 34 do not trigger the electric element 5 without the action of external force, while ensuring that there is enough deformation space when the conductive particles 34 are pressed so as to trigger the electric element 5.

In a possible embodiment, the upper housing 1 is provided with a plurality of buckles 13 in a protruding manner, the lower housing 2 is provided with a clamping groove 23 adapted to the buckles 13, and the buckles 13 are clamped to the clamping groove 23 to cover the upper housing 1 on the lower housing 2. Specifically, a guiding inclined plane is arranged on the buckle 13 so as to facilitate the clamping connection between the buckle 13 and the clamping groove 23.

In one possible embodiment, the lower housing 2 is provided with a limiting protrusion 24, the electrical component 5 is provided with a limiting slot 52 corresponding to the limiting protrusion 24, and the limiting protrusion 24 is clamped in the limiting slot 52 to limit the electrical component 5 on the lower housing 2. The cooperation between spacing protruding 24 and spacing draw-in groove 52 is convenient for electric element 5 and lower casing 2 to fix a position when assembling. And simultaneously, in combination with the embodiment of fixing the electric element 5 on the lower shell 2 through the screw, the cooperation between the limit projection 24 and the limit clamping groove 52 effectively prevents the electric element 5 from shifting in the process of screwing the screw.

The utility model provides an automobile exterior switch, which comprises the waterproof key of any one of the above. In the automobile exterior switch, when the first cavity 6 seals the electric element 5, under the conditions of pressing the pressing part 11 or temperature rise and the like, the pressure increased in the upper cavity can keep the balance of the internal pressure and the external pressure through the exhaust pipe of the exhaust structure 31, so that the appearance of the pressing part 11 is ensured to be fitted, the outward bulge phenomenon can not occur, and the problem of higher cost caused by adopting the waterproof breathable film is avoided.

Note that the above is only a preferred embodiment of the present application and the technical principle applied. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, while the application has been described in connection with the above embodiments, the application is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the application, which is set forth in the following claims.

Claims

1. The utility model provides a waterproof button, its characterized in that includes casing (1), lower casing (2), waterproof gasket (3), slider (4) and electrical component (5), waterproof gasket (3) are flexible component, go up casing (1) lid and close in on casing (2) down, waterproof gasket (3) set up go up casing (1) with between casing (2) down, in order to seal the clearance between casing (1) down and casing (2), waterproof gasket (3) with form first cavity (6) between casing (2) down, electrical component (5) set up in first cavity (6), waterproof gasket (3) with form second cavity (7) between casing (1) down, slider (4) can locate movably in second cavity (7), be equipped with on casing (1) pressing part (11), pressing part (11) with the position of slider (4) for flexible component (4) is for flexible extrusion in order to supply slider (3) to press the electrical component (5), the waterproof gasket (3) is provided with an exhaust structure (31) used for communicating the second cavity (7) with the outside so as to maintain the air pressure balance between the second cavity (7) and the outside.

2. The waterproof key according to claim 1, wherein the exhaust structure (31) is an exhaust pipe arranged on the waterproof gasket (3), the electric element (5) is provided with a first through hole (51), the lower housing (2) is provided with a second through hole (21), and the exhaust pipe sequentially passes through the first through hole (51) and the second through hole (21) to communicate the second cavity (7) with the outside.

3. The waterproof key according to claim 2, characterized in that a sealing flange (311) is provided on the outer pipe wall of the exhaust pipe extending outside the lower housing (2), the sealing flange (311) abutting against the lower housing (2) to seal the second through hole (21).

4. The waterproof key according to claim 1, wherein the waterproof gasket (3) is concavely provided with a groove (32) adapted to the electric element (5), and the electric element (5) is fixed on the lower housing (2) and is accommodated in the groove (32).

5. The waterproof key according to claim 1, wherein a sealing protrusion (33) is convexly arranged on one side, which is abutted against the lower housing (2), of the waterproof gasket (3), a sealing groove (22) corresponding to the sealing protrusion (33) is concavely arranged on the lower housing (2), and the sealing protrusion (33) is inserted into the sealing groove (22) to seal the first cavity (6).

6. The waterproof key according to claim 1, wherein a plurality of limit protruding strips (41) are protruding from the peripheral side surface of the slider (4), the limit protruding strips (41) extend along the displacement direction of the slider (4), a plurality of limit grooves (12) corresponding to the limit protruding strips (41) are recessed on the inner side surface of the upper housing (1), and the limit protruding strips (41) are inserted into the limit grooves (12) to limit the slider (4) in the process of the displacement of the slider (4).

7. The waterproof key according to claim 1, wherein the waterproof gasket (3) is provided with conductive particles (34), the sliding block (4) is provided with extrusion columns (42) corresponding to the conductive particles (34), and when the sliding block (4) is driven by external force, the extrusion columns (42) extrude the conductive particles (34) to be in contact with the electric element (5).

8. The waterproof key according to claim 1, wherein the upper housing (1) is convexly provided with a plurality of buckles (13), the lower housing (2) is provided with clamping grooves (23) matched with the buckles (13), and the buckles (13) are clamped with the clamping grooves (23) so as to cover the upper housing (1) on the lower housing (2).

9. The waterproof key according to any one of claims 1 to 8, wherein the lower housing (2) is convexly provided with a limiting protrusion (24), the electrical component (5) is provided with a limiting clamping groove (52) corresponding to the limiting protrusion (24), and the limiting protrusion (24) is clamped in the limiting clamping groove (52) to limit the electrical component (5) on the lower housing (2).

10. An automotive exterior switch comprising a waterproof key as claimed in any one of claims 1 to 9.