CN218896572U

CN218896572U - Key structure and electronic equipment

Info

Publication number: CN218896572U
Application number: CN202223125951.0U
Authority: CN
Inventors: 刘礼松; 李洋
Original assignee: Luxshare Precision Industry Co Ltd
Current assignee: Luxshare Precision Industry Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-21
Anticipated expiration: 2032-11-24

Abstract

The utility model discloses a key structure which comprises a shell, keys, a contact switch and an elastic sheet. The shell is provided with a containing cavity and an annular part positioned above the containing cavity, and a mounting hole is formed in the middle of the annular part. The key is at least partially arranged in the mounting hole. The contact switch is arranged in the accommodating cavity. The elastic sheet is arranged in the accommodating cavity, and the elastic sheet is arranged between the key and the contact switch. The periphery of the elastic sheet is fixedly adhered to the annular part on one side, and the middle of the elastic sheet is contacted with the contact switch on the other side. The utility model also discloses electronic equipment. So set up, can effectively separate external liquid to get into inside the casing.

Description

Key structure and electronic equipment

Technical Field

The utility model relates to a key structure and electronic equipment, and belongs to the technical field of mechano-electronics.

Background

With the continuous improvement of the living standard of people, the use of electronic products is becoming more and more popular. The existing key design of the electronic equipment is to design a cantilever beam on the key, and assemble the cantilever beam into the shell, so that the key has a certain elasticity in the pressing process, and the pressed hand feeling experience is good. However, the disadvantage of such design is that a gap must be left between the key and the housing, and a space is required to be avoided in the range of the key travel, so that the required space for design is large. Meanwhile, because a space must be reserved, the position of the key cannot be waterproof, the practicability of the electronic equipment is reduced, and the service life is shortened.

Therefore, there is a need to provide a new key structure and an electronic device to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a key structure capable of preventing liquid from entering and electronic equipment so as to solve the technical problems.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a key structure, comprising:

the shell is provided with a containing cavity and an annular part positioned above the containing cavity, and a mounting hole is formed in the middle of the annular part;

the key is at least partially arranged in the mounting hole;

the contact switch is arranged in the accommodating cavity;

the elastic piece is arranged in the accommodating cavity, the elastic piece is arranged between the key and the contact switch, the periphery of the elastic piece is fixedly bonded with the annular part on one side, and the middle of the elastic piece is in contact with the contact switch on the other side.

As a further improved technical scheme of the utility model, the elastic sheet comprises a first wall part and a second wall part opposite to the first wall part, at least part of the first wall part is adhered and fixed with the annular part, and at least part of the second wall part is contacted with the contact switch.

As a further improved technical scheme of the utility model, the shell is provided with a step part, the step part is arranged on the annular part, and the step part protrudes and extends towards the first wall part; the first wall part is provided with a first groove part; the first groove part is fixedly bonded with the step part.

As a further improved technical scheme of the utility model, the key is provided with a first concave part, and the first concave part is arranged towards the first wall part; the first wall part is provided with a first boss part, and the first boss part is arranged towards the first concave part; the first concave portion is matched with the first boss portion.

As a further improved technical scheme of the utility model, a first positioning column is further arranged in the first concave part, a first positioning groove part is arranged on the first boss part, and the first positioning column is fixed in the first positioning groove part.

As a further improved technical scheme of the utility model, a second positioning column and a third positioning column are also arranged in the first concave part, and the second positioning column and the third positioning column are respectively arranged at two sides of the first positioning column; the first boss part is provided with a first positioning hole part and a second positioning hole part, and the first positioning hole part and the second positioning hole part are respectively arranged at two sides of the first positioning groove part; the second positioning column is inserted and fixed in the first positioning hole part, and the third positioning column is inserted and fixed in the second positioning hole part.

As a further improved technical scheme of the utility model, the second wall part is provided with a second concave part, a second boss part is arranged in the second concave part and protrudes towards one side of the contact switch, the second boss part and the first concave part are correspondingly arranged along the pressing direction of the key structure, and the second boss part is elastically abutted against the contact switch.

As a further improved technical scheme of the utility model, the key structure further comprises a gasket, and the gasket is arranged between the second boss part and the contact switch.

As a further improved technical scheme of the utility model, the key structure further comprises a circuit board, the circuit board is fixedly clamped with the inner wall surface of the shell, the contact switch is arranged on the circuit board, and the contact switch is electrically connected with the circuit board.

In order to achieve the above purpose, the present utility model further adopts the following technical scheme: an electronic device comprising the key structure as described above, and further comprising a housing, wherein the housing is disposed on the housing.

Compared with the prior art, the utility model has the beneficial effects that: according to the key structure, one side of the elastic piece is adhered and fixed with the annular part, and the other side of the elastic piece is contacted with the contact switch. The shell fragment and the shell can play the role of blocking external liquid from entering the shell, the assembly is convenient, and the cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of a key structure of the present utility model;

FIG. 2 is an exploded perspective view of FIG. 1;

FIG. 3 is an exploded perspective view of the alternate angle of FIG. 1;

FIG. 4 is a schematic perspective view of a key structure of the present utility model;

FIG. 5 is a schematic perspective view of the spring in FIG. 2;

FIG. 6 is a schematic perspective view of another angle of FIG. 5;

fig. 7 is a perspective view of the key of fig. 2.

Detailed Description

Exemplary embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. If there are several specific embodiments, the features in these embodiments can be combined with each other without conflict. When the description refers to the accompanying drawings, the same numbers in different drawings denote the same or similar elements, unless otherwise specified. What is described in the following exemplary embodiments does not represent all embodiments consistent with the utility model; rather, they are merely examples of apparatus, articles, and/or methods that are consistent with aspects of the utility model as set forth in the claims.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present utility model. As used in the specification and claims of the present utility model, the singular forms "a," "an," or "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that words such as "first," "second," and the like, used in the description and in the claims of the present utility model, do not denote any order, quantity, or importance, but rather are names used to distinguish one feature from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "rear," "upper," "lower," and the like are used herein for convenience of description and are not limited to a particular location or to a spatial orientation. The word "comprising" or "comprises", and the like, is an open-ended expression, meaning that elements appearing before "comprising" or "including", encompass the elements appearing after "comprising" or "including", and equivalents thereof, and not exclude that elements appearing before "comprising" or "including", may also include other elements.

In the present utility model, if a plurality of the above-mentioned components are present, the meaning of the above-mentioned components is two or more.

Referring to fig. 1 to 7, the present utility model discloses a key structure 100, wherein the key structure 100 includes a housing 1, a key 2, a contact switch 3 and an elastic member 4.

Referring to fig. 1 to 4, the housing 1 has a hollow structure, the housing 1 has a housing chamber 10 and an annular portion 12 above the housing chamber, and a mounting hole 11 is provided in the middle of the annular portion 12. The key 2 is at least partially arranged in the mounting hole 11, the contact switch 3 is arranged in the accommodating cavity 10, and the elastic sheet 4 is arranged in the accommodating cavity 10. The elastic sheet 4 is arranged between the key 2 and the contact switch 3, one side of the periphery of the elastic sheet 4 is fixedly adhered to the annular part 12, and the other side of the middle of the elastic sheet 4 can be contacted with the contact switch 3. The following is a detailed description.

Referring to fig. 2 to 3, the housing 1 further has a step portion 13, the step portion 13 is provided on the annular portion 12, and the step portion 13 is provided along the circumferential direction of the annular portion 12. The step portion 13 protrudes toward one side of the elastic piece 4, so that a groove 101 is formed between the step portion 13, the annular portion 12, and the inner wall of the housing 1.

Referring to fig. 2 to 3 and fig. 5 to 6, the elastic sheet 4 includes a first wall portion 41 and a second wall portion 42 disposed opposite to the first wall portion 41, and at least a portion of the first wall portion 41 is adhered and fixed to the step portion 12. In the illustration of the present utility model, the first wall portion 41 has a first groove portion 411 having a ring shape, and the first groove portion 411 is provided corresponding to the step portion 13 along the pressing direction a of the key structure 100. The first groove portion 411 wraps at least part of the step portion 13, and the first groove portion 411 is adhered and fixed to the step portion 13. In this embodiment, the first groove 411 and the step portion 13 are fixedly connected by a waterproof adhesive, so that between the elastic sheet 4 and the housing 1, liquid can be prevented from entering the housing 1, and normal operation of the contact switch 3 is affected, thereby prolonging the service life of the key structure 100.

In this embodiment, the base material of the elastic sheet 4 is soft silica gel, and the key 2 is hard gel. In other embodiments, the base material of the elastic sheet 4 may be rubber, or other elastic material. Through the cooperation equipment between the shell fragment 4 that the button 2 of hard gum material and soft silica gel were made, can improve the comfort of pressing to improve user's experience degree.

Referring to fig. 2 to 4, the first wall portion 41 further has an abutting portion 412, and the abutting portion 412 is disposed outside the first groove portion 411 along the radial direction of the spring 4. After the first groove 411 is fixedly connected with the step 13, the abutting portion 412 can be fixedly disposed in the groove 101, so that the elastic sheet 4 is fixed between the casing 1 and the casing 1, and the elastic sheet 4 is prevented from falling off the casing 1. The abutting portion 412 is provided with a plurality of fixing holes 4121, and the annular portion 12 is further provided with a plurality of fixing columns 121. When the abutting portion 412 is disposed in the groove 101, the fixing holes 4121 are matched and fixed with the fixing columns 121 in a one-to-one correspondence manner, so that the firmness of the combination between the elastic sheet 4 and the housing 1 can be increased, and meanwhile, the movement of the elastic sheet 4 in the housing 1 during the pressing process of the key 2 can be prevented, thereby affecting the contact reaction effect of the key 2.

Referring to fig. 2 to 3 and 7, the key 2 is provided with a first recess 21, and the first recess 21 is disposed towards the first wall 41. The first wall 41 is provided with a first boss 413, and the first boss 413 is disposed toward the first recess 21. The first boss 413 is disposed on the inner side of the first groove 411 along the radial direction of the elastic sheet 4, and the first recess 21 is matched with the first boss 412, so that the key 2 and the elastic sheet 4 can be completely attached after being assembled, and no gap exists, thereby further guaranteeing the waterproof performance of the key structure 100.

The first concave portion 21 is further provided with a first positioning column 211, the first boss portion 413 is provided with a first positioning groove portion 4131, and the first positioning column 211 is inserted and fixed in the first positioning groove portion 4131 along the pressing direction a, so that when the key 2 is pressed along the pressing direction a, the first positioning column 211 can apply a pressing force to the first positioning groove portion 4131, and the first positioning groove portion 4131 absorbs the pressing force to store energy. When the key 2 is released, the first positioning groove portion 4131 releases the stored energy, and the first positioning groove portion 4131 pushes the first positioning column 211 in the opposite direction of the pressing direction a, thereby pushing the key 2 to protrude out of the mounting hole 11.

The first recess 21 is further provided with a second positioning column 212 and a third positioning column 213, and the second positioning column 212 and the third positioning column 213 are respectively disposed at two sides of the first positioning column 211. The first boss portion 413 is further provided with a first positioning hole portion 4132 and a second positioning hole portion 4133. The first positioning hole portion 4132 and the second positioning hole portion 4133 are provided on both sides of the first positioning groove portion 4131, respectively. The second positioning column 212 has the same diameter as the first positioning hole 4132, the third positioning column 213 has the same diameter as the second positioning hole 4133, and the second positioning column 212 has a different diameter from the third positioning column 213. The second positioning column 212 is inserted and fixed in the first positioning hole 4132, and the third positioning column 213 is inserted and fixed in the second positioning hole 4133, so as to play a role of positioning and guiding, and avoid assembly errors. The second wall portion 42 has a second concave portion 421, and a second boss portion 4211 is provided in the second concave portion 421, and the second boss portion 4211 protrudes toward the side of the contact switch 3. The second boss portion 4211 and the first positioning groove portion 4131 are provided vertically corresponding to each other in the pressing direction a of the key structure 100, and the second boss portion 4211 is elastically contacted with the contact switch 3. When the key 2 is pressed in the pressing direction a, the first positioning column 211 pushes the first positioning groove portion 4131 to move downward in the pressing direction a, so that the second boss portion 4211 is also downward in the pressing direction a and contacts the contact switch 3. When the key 2 is released, the first positioning groove portion 4131 releases the elastic force, pushing the first positioning column 211 upward in the opposite direction of the pressing direction a, so that the second boss portion 4211 is separated from the contact switch 3, and the key 2 partially protrudes from the mounting hole 11.

Referring to fig. 2 to 3 and 4, the key structure 100 further includes a spacer 5, and the spacer 5 is disposed between the second boss 4211 and the contact switch 3. The spacer 5 is disposed between the second boss portion 4211 and the contact switch 3, so that friction between the second boss portion 4211 and the contact switch 3 can be reduced, abrasion of the contact switch 3 can be reduced, and the service life of the contact switch 3 can be prolonged. Meanwhile, the gasket 5 is made of elastic material. Therefore, in the pressing process, the gasket 5 can also play a role in increasing the pressing comfort, and the use experience of the user is improved.

Referring to fig. 2 to 4, the key structure 100 further includes a circuit board 6, and the circuit board 5 is fastened to the inner wall of the housing 1. The contact switch 3 is disposed on the circuit board 6, and the contact switch 3 is electrically connected to the circuit board 6. In the present embodiment, the circuit board 6 and the case 1 are connected and fixed by heat fusion.

The utility model also discloses an electronic device, which comprises the key structure 100. The electronic device further comprises a housing, on which the housing 1 of the key structure 100 is arranged. In the present embodiment, the housing 1 is one of the parts of the outer shell. In other embodiments, the housing 1 and the shell are connected by assembly, which is not limited herein.

To sum up: the key structure 100 of the utility model comprises a shell 1, a key 2, a contact switch 3 and an elastic piece 4, wherein the shell 1 is provided with an annular part 12, the annular part 12 is provided with a mounting hole 11, the key 2 is at least partially arranged in the shell 1, the elastic piece 4 is arranged in the shell 1, and one side of the elastic piece 4 is fixedly adhered to the annular part 12, and the other side of the elastic piece is contacted with the contact switch 3. The shell fragment 4 and the casing 1 can play the role of blocking external liquid from entering the casing 1, and the assembly is convenient and the cost is reduced.

The above embodiments are only for illustrating the technical solutions described in the present utility model and should not be construed as limiting the present utility model, and the present utility model should be understood based on the description of the directivity of the present utility model such as "front", "rear", "left", "right", "upper", "lower", etc., and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present utility model can be modified or substituted by those skilled in the art without departing from the spirit and scope of the present utility model and all the modifications thereof should be covered in the scope of the claims of the present utility model.

Claims

1. A key structure, comprising:

the shell (1), the shell (1) is provided with a containing cavity (10) and an annular part (12) positioned above the containing cavity (10), and a mounting hole (11) is arranged in the middle of the annular part (12);

the key (2) is at least partially arranged in the mounting hole (11);

the contact switch (3) is arranged in the accommodating cavity (10);

the elastic piece (4) is arranged in the accommodating cavity (10), the elastic piece (4) is arranged between the key (2) and the contact switch (3), the periphery and one side of the elastic piece (4) are fixedly bonded with the annular part (12), and the middle and the other side of the elastic piece (4) can be in contact with the contact switch (3).

2. The key structure of claim 1, wherein: the elastic sheet (4) comprises a first wall part (41) and a second wall part (42) which is opposite to the first wall part (41), at least part of the first wall part (41) is adhered and fixed with the annular part (12), and at least part of the second wall part (42) is contacted with the contact switch (3).

3. The key structure of claim 2, wherein: the housing (1) has a step portion (13), the step portion (13) being provided on the annular portion (12), the step portion (13) protruding toward the first wall portion (41); the first wall portion (41) has a first groove portion (411); the first groove part (411) is adhered and fixed with the step part (13).

4. The key structure of claim 2, wherein: the key (2) is provided with a first concave part (21), and the first concave part (21) is arranged towards the first wall part (41); the first wall part (41) is provided with a first boss part (413), and the first boss part (413) is arranged towards the first concave part (21); the first recess portion (21) is fitted with the first boss portion (413).

5. The key structure of claim 4, wherein: the first concave part (21) is internally provided with a first positioning column (211), the first boss part (413) is provided with a first positioning groove part (4131), and the first positioning column (211) is fixed in the first positioning groove part (4131).

6. The key structure of claim 5, wherein: a second positioning column (212) and a third positioning column (213) are further arranged in the first concave part (21), and the second positioning column (212) and the third positioning column (213) are respectively arranged on two sides of the first positioning column (211); the first boss part (413) is provided with a first positioning hole part (4132) and a second positioning hole part (4133), and the first positioning hole part (4132) and the second positioning hole part (4133) are respectively arranged at two sides of the first positioning groove part (4131); the second positioning column (212) is inserted and fixed in the first positioning hole part (4132), and the third positioning column (213) is inserted and fixed in the second positioning hole part (4133).

7. The key structure of claim 4, wherein: the second wall part (42) is provided with a second concave part (421), a second boss part (4211) is arranged in the second concave part (421), the second boss part (4211) protrudes towards one side of the contact switch (3), the second boss part (4211) and the first concave part (21) are correspondingly arranged along the pressing direction of the key structure, and the second boss part (4211) is elastically abutted to the contact switch (3).

8. The key structure of claim 7, wherein: the key structure further comprises a gasket (5), and the gasket (5) is arranged between the second boss part (4211) and the contact switch (3).

9. The key structure of claim 1, wherein: the key structure further comprises a circuit board (6), the circuit board (6) is fixedly clamped with the inner wall surface of the shell (1), the contact switch (3) is arranged on the circuit board (6), and the contact switch (3) is electrically connected with the circuit board (6).

10. An electronic device, characterized in that: the electronic device comprising the key structure according to any one of claims 1-9, the electronic device further comprising a housing, the housing (1) being arranged on the housing.