CN218497974U

CN218497974U - Button watertight fittings and humidifier

Info

Publication number: CN218497974U
Application number: CN202221951998.XU
Authority: CN
Inventors: 祝克楠
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-02-17
Anticipated expiration: 2032-07-27

Abstract

The utility model relates to a button watertight fittings and humidifier, button watertight fittings installs in humidifier, includes: casing, circuit board, waterproof component and button. The shell is provided with a key hole, and the periphery of the key hole is provided with a limiting installation piece which is arranged on the shell; the circuit board is arranged in the shell and provided with a microswitch facing the key hole; the waterproof piece is hermetically arranged on the shell through the limiting mounting piece, arranged between the circuit board and the shell and forms an accommodating space with the shell, the accommodating space is only communicated with the key hole, and the waterproof piece comprises an elastic part which is far away from the key hole; the button passes the button hole and is connected with the waterproof piece, and can follow the axis direction motion in the button hole in accommodation space, and wherein, the button promotes elastic component conflict micro-gap switch. The assembly is simple, the sealing is high-efficient, the assembly efficiency is improved, water is prevented from entering the internal damage of the circuit board through the gap between the key and the key hole, and the problem of water resistance of the key is solved.

Description

Button watertight fittings and humidifier

Technical Field

The utility model relates to a mechanical button waterproof technology field especially relates to a button watertight fittings and humidifier.

Background

With the improvement of living standard of people, the humidifier becomes a necessity of human life, and more families have the humidifier. The humidifier can not only increase the humidity of air, but also greatly relieve discomfort caused by air drying. The humidifier casing is usually provided with some function keys or switch keys, and gaps exist between the keys and key holes on the casing.

However, since the humidifier requires regular addition of water during use, it is difficult to avoid water from being splashed or splashed onto the keys on the housing during the addition of water. Because install the circuit board in the casing, inside water gets into through the clearance between the button hole on button and the casing, can cause the circuit board to damage, greatly reduced user experience.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art, the present disclosure provides a waterproof device for a key and a humidifier.

According to a first aspect of the embodiments of the present disclosure, there is provided a key waterproof device installed on a humidifier, including:

the key comprises a shell, a key hole, a limiting mounting piece and a positioning piece, wherein the shell is provided with the key hole;

the circuit board is arranged in the shell and is provided with a microswitch facing the key hole;

the waterproof piece is arranged between the circuit board and the shell and forms an accommodating space with the shell, the accommodating space is only communicated with the key hole, and the waterproof piece comprises an elastic part which is far away from the key hole; and

the key penetrates through the key hole and is connected with the waterproof piece, and can move along the axial direction of the key hole in the accommodating space,

wherein, the button pushes the elastic part to abut against the microswitch.

In some possible embodiments, the flashing further comprises: the first waterproof shell is arranged on the first surface of the elastic part and arranged in the accommodating space; and the second waterproof shell is arranged on the first surface of the elastic part and positioned inside the first waterproof shell, a gap is formed between the outer side wall of the second waterproof shell and the inner side wall of the first waterproof shell, and the gap is used for accommodating the key.

In some possible embodiments, the flashing further comprises: the first connecting part is arranged on the outer side wall of the first waterproof shell; and the second connecting part is arranged on the second waterproof shell.

In some possible embodiments, the key comprises: the key body is positioned in the accommodating space; the pressing column is arranged on the first side of the key body, a step surface is arranged between the pressing column and the key body, and the pressing column penetrates through the key hole, is positioned outside the shell and moves along the axis direction of the key hole; and the extension part is arranged on the second side of the key main body, and the extension part is accommodated in the gap and connected with the second connecting part.

In some possible embodiments, the first connecting part is fixed to the limit mounting part, and the micro switch is disposed on a second surface of the elastic part, the second surface being opposite to the first surface.

In some possible embodiments, the key hole is provided with a stepped hole adapted to the stepped surface, and the key body is located in the key hole.

In some possible embodiments, the circuit board is fixedly connected to the housing, and a first surface of the circuit board abuts against the waterproof member for forming a seal.

In some possible embodiments, the key waterproof device further includes: and the supporting shell is arranged in the shell and is abutted against the second surface of the circuit board.

In some possible embodiments, the support housing comprises: and the at least two fixing pieces are positioned in the shell, and the fixing pieces are abutted to the second surface of the circuit board.

According to a second aspect of embodiments of the present disclosure, there is provided a humidifier comprising: the waterproof device for a key according to any one of the embodiments of the first aspect.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the utility model discloses through providing an install button watertight fittings in humidifier, the waterproof piece that is equipped with elastic component passes through spacing installed part seal installation in casing, and the button passes the button hole and is connected with the waterproof piece, and the button promotes elastic component conflict micro-gap switch. The assembly is simple, and is sealed high-efficient, has improved packaging efficiency, prevents simultaneously that water from getting into inside the damage that causes the circuit board through the clearance between button and the key hole, has solved the waterproof problem of button.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a sectional view illustrating a key water prevention apparatus mounted to a humidifier according to an exemplary embodiment.

Fig. 2 is a schematic view of an assembly structure of a housing and a limiting mounting member according to an exemplary embodiment.

Fig. 3 is a schematic diagram illustrating a key structure according to an exemplary embodiment.

FIG. 4 is a partial structural schematic view of a flashing shown in accordance with an exemplary embodiment.

Fig. 5 is a schematic view illustrating an assembly structure of a waterproof member and a housing according to an exemplary embodiment.

Description of reference numerals: 1-a shell; 2-pressing a key; 3-a waterproof piece; 4-a microswitch; 5-a circuit board; 6-a first fixing rib; 7-a second fixing rib; 8-a support housing; 9-key hole; 10-a first limiting part; 11-a second limiting part; 12-a mounting seat; 13-step surface; 14-an extension; 15-a fixing member; 16-a first connection; 17-a second connection; 18-an elastic portion; 19-a stop mount; 20-a first waterproof shell; 21-a second waterproof shell; 22-a key body; 23-pressing the column.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.

Along with the improvement of living standard of people, people also have higher and higher requirements on self life, work and office environment, and people use humidifiers more and more.

When the heating device is used, the environment becomes very dry, the comfort of the human body is seriously affected, and symptoms such as dyspnea, eye pain, dry skin and the like can be caused to occur to people in serious cases. Therefore, the humidifier is gradually becoming a small household appliance indispensable in human life.

Wherein, the function key or the switch key is an essential part of the humidifier. There is typically a gap between the keys and the key holes in the housing. The humidifier needs to add water regularly in the use process, and water is difficult to be splashed to the key on the shell in the water adding process, so that the key is more and more important in order to prolong the service life of the humidifier and reduce the repair rate.

In the related art, the waterproof effect of the key is not ideal, and external water still enters the circuit board to damage the circuit board. And the button watertight fittings structure is complicated, and the assembly degree of difficulty is high, greatly reduced the packaging efficiency.

In order to solve the above problem, the present disclosure provides a button watertight fittings installed on a humidifier. As shown in fig. 1 to 5, the waterproof device for a keypad includes: the keyboard comprises a shell 1, a circuit board 5, a waterproof piece 3 and a key 2.

Casing 1 has button hole 9, and the periphery of button hole 9 is equipped with spacing installed part 19, and spacing installed part 19 is installed in casing 1. The circuit board 5 is arranged in the housing 1, and the circuit board 5 is provided with a microswitch 4 facing the key hole 9. Waterproof 3 passes through spacing installed part 19 seal installation in casing 1, and waterproof 3 sets up between circuit board 5 and casing 1 to form accommodation space with casing 1, accommodation space only communicates with button hole 9. The waterproof member 3 includes an elastic portion 18, and the elastic portion 18 is disposed away from the key hole 9. The key 2 passes through the key hole 9 and is connected with the waterproof piece 3, and can move along the axial direction of the key hole 9 in the accommodating space.

Wherein, the push button 2 pushes the elastic part 18 to touch the micro switch 4. The microswitch 4 can be a single-position switch or a double-position switch, and the switch type is selected according to the design requirement.

The waterproof member 3 may be made of a waterproof flexible glue material, such as a silicone rubber material, polyvinyl chloride, PVC, or other flexible materials.

The Circuit Board 5 may be Printed Circuit Board (PCB), which is an important electronic component, a support for electronic components, and a carrier for electrical interconnection of electronic components.

The number of the key holes 9 may be one or more, the shape of the key holes 9 may be circular, square, triangular, elliptical, etc., and the specific number and shape are determined according to the design requirements, which is not limited in this disclosure.

The elastic portion 18 may be an elastic film, which may be made of silica gel, polyvinyl chloride, PVC, or other flexible materials.

In the embodiment of the disclosure, the waterproof part 3 with the elastic part 18 is hermetically mounted on the shell 1 through the limiting mounting part 19, so that the assembly is simple, the sealing is efficient, and the assembly efficiency is improved. The key 2 passes through the key hole 9 and is connected with the waterproof part 3, and the key 2 pushes the elastic part 18 to abut against the micro switch 4. Prevent that water from getting into inside through the clearance between button 2 and the key hole 9 and causing the damage of circuit board 5, solved the waterproof problem of button.

In some embodiments, as shown in fig. 4-5, the flashing 3 further comprises: a first watertight case 20 and a second watertight case 21.

The first waterproof case 20 is disposed on a first surface of the elastic portion 18 and in the accommodating space. The second waterproof case 21 is disposed on the first surface of the elastic portion 18 and located inside the first waterproof case 20, and a gap is disposed between an outer side wall of the second waterproof case 21 and an inner side wall of the first waterproof case 20, and the gap is used for accommodating the key 2.

Wherein, the first waterproof shell 20 is connected with the elastic part 18 in a sealing way, and the second waterproof shell 21 is connected with the elastic part 18 in a sealing way. The first waterproof case 20 may have a columnar structure, and the second waterproof case 21 may also have a columnar structure.

In particular, the first waterproof shell 20 and the second waterproof shell 21 may be coaxially disposed.

The first waterproof case 20 may be made of a waterproof flexible glue material, such as a silicone material, polyvinyl chloride, PVC, or other flexible materials. The second waterproof case 21 may be made of a waterproof soft plastic material, such as a silicone material, polyvinyl chloride, PVC, or other flexible materials. The material of the first waterproof case 20 and the material of the second waterproof case 21 may be the same or different.

In the embodiment of the present disclosure, the first waterproof case 20 is hermetically mounted on the housing 1 through the limiting mounting member 19, so that the assembly is simple, the sealing is efficient, and the assembly efficiency is improved.

In some embodiments, as shown in fig. 4-5, the flashing 3 further comprises: a first connection portion 16 and a second connection portion 17.

The first connecting portion 16 is disposed at an outer sidewall of the first waterproof case 20; the second connecting portion 17 is provided to the second waterproof case 21.

The number of the first connecting portions 16 is two or more, the first connecting portions 16 and the outer side wall of the first waterproof case 20 can be fixedly connected, and the first connecting portions 16 and the first waterproof case 20 can also be of an integrated structure. The number of the second connecting portions 17 is two or more, and the second connecting portions 17 may be provided on an end surface of the second waterproof case 21 or on an outer side wall of the second waterproof case 21.

Specifically, the first connecting portion 16 may be a limiting rib, the limiting rib and the first waterproof case 20 are integrated, and the number of the limiting rib is two. The second connecting portion 17 can be an inner clamping groove, the inner clamping groove is arranged on the end face of the second waterproof case 21, the number of the inner clamping grooves is two, and the two inner clamping grooves are perpendicular to each other in arrangement direction.

In the embodiment of the present disclosure, the first connecting portion 16 is convenient for fast assembling with the limiting installation component 19, the sealing installation is performed on the housing 1, the second connecting portion 17 is convenient for fast assembling with the key 2, the assembly is simple, the sealing is efficient, and the assembly efficiency is improved.

In some embodiments, as shown in fig. 3, key 2 includes: key body 22, pressing post 23, and extension 14.

The key main body 22 is located in the accommodating space. The pressing column 23 is installed on a first side of the key main body 22, the step surface 13 is arranged between the pressing column 23 and the key main body 22, and the pressing column 23 penetrates through the key hole 9, is located outside the casing 1 and moves along the axial direction of the key hole 9. The extending portion 14 is disposed on the second side of the key main body 22, and the extending portion 14 is received in the gap and connected to the second connecting portion 17.

The outer diameter of the key main body 22 is larger than the outer diameter of the pressing column 23, and the joint of the pressing column 23 and the key main body 22 is arranged on the step surface 13. The pressing column 23 can move in the key hole 9, the key main body 22 can not pass through the key hole 9, and a gap is arranged between the pressing column 23 and the periphery of the key hole 9. The pressing post 23 can move in the axial direction of the pressing post 23. The extension portion 14 is accommodated in the space and connected to the second connecting portion 17.

Specifically, the second connecting portion 17 is an inner clip groove, the number of the inner clip grooves is two, and the two inner clip grooves are perpendicular to each other in the arrangement direction. A clamping block matched with the inner clamping groove is arranged in the extending part 14, and the clamping block of the extending part 14 is connected with the inner clamping groove of the second connecting part 17 in an interference fit mode.

In the embodiment of the present disclosure, the second connecting portion 17 of the waterproof member 3 is quickly assembled with the extending portion 14 of the key 2, and when the key 2 is pressed, the second connecting portion 17 and the extending portion 14 are relatively stationary and move together along the axial direction of the key hole 9. The assembly of waterproof part 3 and button 2 of being convenient for, the equipment is high-efficient, has improved the packaging efficiency.

In some embodiments, as shown in fig. 1-2 and 5, the first coupling portion 16 is fixed to the limit mount 19, and the microswitch 4 is disposed on a second face of the resilient portion 18, the second face being disposed opposite the first face.

Wherein the restraining installation 19 corresponds to the first connection 16. Specifically, the number of the first connection portions 16 is two. The limiting installation part 19 comprises a first limiting part 10 and a second limiting part 11, and the first limiting part 10 and the second limiting part 11 are provided with limiting grooves matched with the first connecting part 16. The limiting groove of the first limiting part 10 is fixed with one of the first connecting parts 16 in an interference fit manner, and the limiting groove of the second limiting part 11 is fixed with the other first connecting part 16 in an interference fit manner.

In the embodiment of the present disclosure, in the process of pressing the key 2, the elastic portion 18 is pulled to move, and in order to ensure that the waterproof member 3 is not damaged in the pulling process, the material of the waterproof member 3 is generally flexible materials such as silica gel and PVC. The elastic part 18 will be pulled to move to abut against or move away from the micro switch 4, so that the micro switch 4 is turned on or off. First connecting portion 16 is fixed through 19 interference fit with spacing installed part for waterproof piece 3 and casing 1 fast assembly, the assembly is simple, and is sealed high-efficient, has improved the packaging efficiency.

In some embodiments, the key hole 9 is provided with a stepped hole (not shown) matching with the step surface 13, and the key main body 22 is located in the key hole 9.

In the embodiment of the present disclosure, in the process of pressing the key 2, the first connecting portion 16 is fixedly mounted on the housing 1, the second connecting portion 17 and the extending portion 14 are relatively stationary and move together along the axis direction of the key hole 9, the elastic portion 18 is pulled to move, and the elastic portion 18 abuts against or is away from the micro switch 4 when being pulled to move, so that the micro switch 4 is turned on or turned off. The stepped hole is matched with the stepped surface 13 of the key 2, and the key 2 is placed in the key hole 9 of the shell 1. Gaps are arranged around the keys 2 and the key holes 9, so that the keys 2 can move along the axial direction of the stepped hole.

In some embodiments, as shown in fig. 1-2 and 5, the circuit board 5 is fixedly connected to the housing 1, and a first side of the circuit board 5 abuts the flashing 3 for forming a seal.

Wherein, the side of the casing 1 facing the circuit board 5 is provided with a mounting seat 12, and the circuit board 5 is fixedly mounted on the mounting seat 12 and simultaneously compresses the waterproof part 3 to form a seal.

Specifically, the mounting seat 12 may be one or more screw posts, and the circuit board 5 is fixed on the screw posts by screws, so that the circuit board 5 is fixedly mounted on the housing 1 to form a seal. Even when water enters from the gap between the key 2 and the shell 1, the water is blocked by the waterproof piece 3, so that the water is prevented from entering the area where the circuit board 5 is located, and the circuit board is prevented from being damaged due to the water entering.

In some embodiments, as shown in fig. 1, the key waterproof device further includes: supporting the housing 8.

The support case 8 is mounted in the case 1 and abuts against the second surface of the circuit board 5.

In the disclosed embodiment, the support housing 8 is detachably connected to the housing 1, for example, by a snap connection, or an interference connection. The supporting shell 8 is used for supporting the circuit board 5, and the risk of deformation or damage of the circuit board caused by the fact that the force for pressing the key 2 is too large is reduced.

In some embodiments, as shown in fig. 1, the support housing 8 comprises: at least two fixing pieces 15.

At least two fixing pieces 15 are positioned in the shell 1, and the fixing pieces 15 are abutted with the second surface of the circuit board 5.

Specifically, the two fixing members 15 are the first fixing rib 6 and the second fixing rib 7, respectively. The first end of the first fixing rib 6 is fixedly connected with the supporting shell 8, and the second end of the first fixing rib 6 is abutted to the second surface of the circuit board 5. The first end of the second fixing rib 7 is fixedly connected with the supporting shell 8, and the second end of the second fixing rib 7 is abutted to the second surface of the circuit board 5.

In the embodiment of the present disclosure, the first fixing rib 6 and the second fixing rib 7 are arranged to support the circuit board 5, so as to reduce the risk of deformation or damage of the circuit board caused by an excessive force applied to press the key 2.

Based on the same conception, the embodiment of the present disclosure further provides a humidifier, which includes the button waterproofing device of any one of the above embodiments.

In the embodiment of the disclosure, the waterproof part 3 with the elastic part 18 is hermetically mounted on the shell 1 through the limiting mounting part 19, so that the assembly is simple, the sealing is efficient, and the assembly efficiency is improved. The key 2 passes through the key hole 9 and is connected with the waterproof piece 3, and the key 2 pushes the elastic part 18 to abut against the micro switch 4. Prevent that water from getting into inside through the clearance between button 2 and the key hole 9 and causing the damage of circuit board 5, solved the waterproof problem of button.

It should be noted that the key waterproof device is not only applicable to a humidifier, but also applicable to any product having a mechanical key waterproof structure.

It is understood that "plurality" in this disclosure means two or more, and other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like, are used to describe various information and should not be limited by these terms. These terms are only used to distinguish one type of information from another, and do not indicate a particular order or degree of importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.

It is further understood that, unless otherwise specified, "connected" includes direct connections between the two without other elements and indirect connections between the two with other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is to be limited only by the scope of the appended claims.

Claims

1. The utility model provides a button watertight fittings which characterized in that installs in the humidifier, includes:

the key comprises a shell (1), wherein the shell (1) is provided with a key hole (9), the periphery of the key hole (9) is provided with a limiting installation piece (19), and the limiting installation piece (19) is installed on the shell (1);

the circuit board (5) is arranged in the shell (1), and the circuit board (5) is provided with a microswitch (4) facing the key hole (9);

the waterproof piece (3) is mounted on the shell (1) in a sealing mode through the limiting mounting piece (19), the waterproof piece (3) is arranged between the circuit board (5) and the shell (1) and forms an accommodating space with the shell (1), the accommodating space is only communicated with the key hole (9), the waterproof piece (3) comprises an elastic part (18), and the elastic part (18) is far away from the key hole (9); and

the key (2) penetrates through the key hole (9) and is connected with the waterproof piece (3), and the key (2) can move along the axial direction of the key hole (9) in the accommodating space,

wherein, the key (2) pushes the elastic part (18) to abut against the microswitch (4).

2. The waterproofing device for keys according to claim 1, wherein said waterproofing member (3) further comprises:

a first waterproof case (20) provided on a first surface of the elastic portion (18) and provided in the accommodating space; and

the second waterproof case (21) is arranged on the first surface of the elastic part (18) and located inside the first waterproof case (20), a gap is formed between the outer side wall of the second waterproof case (21) and the inner side wall of the first waterproof case (20), and the gap is used for accommodating the key (2).

3. The waterproofing device for keys according to claim 2, wherein said waterproofing member (3) further comprises:

a first connecting part (16) arranged on the outer side wall of the first waterproof shell (20); and

and a second connecting part (17) arranged on the second waterproof shell (21).

4. A key water-proofing arrangement according to claim 3, characterized in that the key (2) comprises:

a key body (22) located in the accommodation space;

the pressing column (23) is mounted on the first side of the key main body (22), a step surface (13) is arranged between the pressing column (23) and the key main body (22), and the pressing column (23) penetrates through the key hole (9), is located outside the shell (1), and moves along the axis direction of the key hole (9); and

an extension portion (14), wherein the extension portion (14) is arranged on the second side of the key main body (22), and the extension portion (14) is accommodated in the gap and connected with the second connecting portion (17).

5. The waterproof device for key set of claim 3,

the first connecting part (16) is fixed with the limiting installation part (19), the microswitch (4) is arranged on a second surface of the elastic part (18), and the second surface is opposite to the first surface.

6. The key waterproof device of claim 4,

the key hole (9) is provided with a stepped hole matched with the stepped surface (13), and the key main body (22) is located in the key hole (9).

7. The waterproof device for key set of claim 1,

the circuit board (5) is fixedly connected with the shell (1), and the first surface of the circuit board (5) is abutted to the waterproof piece (3) to form sealing.

8. The key waterproof device according to claim 7, further comprising:

and a support case (8) which is mounted in the case (1) and abuts against the second surface of the circuit board (5).

9. The key waterproof device according to claim 8, characterized in that the support case (8) comprises:

at least two fixing pieces (15), the at least two fixing pieces (15) are positioned in the shell (1), and the fixing pieces (15) are abutted to the second surface of the circuit board (5).

10. A humidifier, comprising:

the waterproof device for a key set of any one of claims 1 to 9.