CN210607032U

CN210607032U - Button subassembly and intelligent pronunciation stereo set

Info

Publication number: CN210607032U
Application number: CN201921839119.2U
Authority: CN
Inventors: 李诺; 何乾鹏
Original assignee: TCL Technology Electronics Huizhou Co Ltd
Current assignee: TCL Technology Electronics Huizhou Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-05-22
Anticipated expiration: 2029-10-29

Abstract

The utility model provides a button subassembly to and the intelligent pronunciation stereo set of using this button subassembly. The key assembly comprises a shell, a key cap and an elastic piece, wherein the shell is provided with a key hole; the key cap is arranged in the shell, and at least one part of the key cap penetrates through the key hole and is convexly arranged on the surface of the shell; the elastic piece is arranged between the key cap and the shell, and at least one part of the elastic piece is arranged in a telescopic manner. The technical scheme of the utility model the inhomogeneous problem in clearance between key cap and the key hole in having solved present button subassembly has effectively improved user's outward appearance visual experience.

Description

Button subassembly and intelligent pronunciation stereo set

Technical Field

The utility model relates to a button technical field, in particular to press key assembly and use this intelligent pronunciation stereo set that presses key assembly.

Background

The button subassembly that soft or hard glue combines is widely used in intelligent pronunciation stereo set or the audio and video product of taking the screen, and this button subassembly generally includes the button cap that the ebonite material was made and the elastic arm that the flexible glue material was made, through sticky or integrated into one piece. However, the soft rubber part of the key assembly is easy to shrink to cause deformation, so that the key is easy to deviate from the key hole in the assembling process, the gap between the key and the key hole is uneven, and the appearance visual experience of a user is seriously influenced.

Therefore, the existing key assembly and the intelligent voice sound using the key assembly still need to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a key assembly aims at solving the inhomogeneous problem in clearance between button and the key hole in the present key assembly, effectively improves user's outward appearance visual experience.

In order to achieve the above object, the utility model provides a key assembly, include:

the key comprises a shell, a key hole and a key body, wherein the shell is provided with the key hole;

the key cap is arranged in the shell, and at least one part of the key cap penetrates through the key hole and is convexly arranged on the surface of the shell; and

the elastic piece is arranged between the key cap and the shell, and at least one part of the elastic piece is arranged in a telescopic manner.

In an embodiment of the present invention, a positioning column is disposed on one side of the casing facing the key cap, and the positioning column is spaced from the key hole;

the elastic part is connected with the positioning column and is abutted against the key cap;

the elastic part is positioned between the positioning column and the key cap and is arranged in a telescopic manner.

In an embodiment of the present invention, the elastic member includes:

the first connecting part is abutted with the key cap;

the second connecting part is connected with the positioning column; and

the telescopic part, the relative both sides of telescopic part are connected respectively first connecting portion with the second connecting portion to the telescopic is adjusted distance between first connecting portion and the second connecting portion.

In an embodiment of the present invention, the second connecting portion has a first through hole, and the positioning column is disposed through the first through hole.

In an embodiment of the present invention, the flexible portion is an arc-shaped elastic arm, and two ends of the elastic arm are respectively connected to the first connecting portion and the second connecting portion.

In an embodiment of the present invention, the elastic arm includes a first elastic arm and a second elastic arm, and the first elastic arm and the second elastic arm are symmetrically disposed on opposite sides of the key cap.

In an embodiment of the present invention, the key cap includes:

a key cap body;

a plurality of lugs, it is a plurality of the lug sets up it is close to press the button hole according to the button cap body one end, and encircle the circumference interval setting according to the button cap body, the lug with the inner wall butt in button hole.

In an embodiment of the present invention, the bump is a tapered bump, and the cross-sectional area of the bump is gradually increased along the pressing direction of the key cap.

In an embodiment of the present invention, a circuit board is disposed in the housing, and the elastic member is disposed between the housing and the circuit board; the shell is further provided with a sound pickup hole, and the elastic piece is provided with a second through hole communicated with the sound pickup hole.

The utility model discloses still provide an intelligence pronunciation stereo set, include as above button subassembly. Therefore, the intelligent voice sound box can have all the characteristics and advantages of the key assembly described above, and the description is omitted here.

The utility model provides a key assembly, this key assembly is through setting up the elastic component between key cap and casing, and at least a part of this elastic component is scalable, when taking place to drag and produce stress according to key cap and elastic component, this stress is balanced to this elastic component's of accessible ductility, effectively alleviates the influence of dragging each other according to key cap and elastic component, avoids taking place to drag one side that makes the key cap skew according to the key hole often according to key cap and elastic component in assembling process, also promptly, the technical scheme of the utility model solve in the present key assembly according to the key cap and according to the inhomogeneous problem in clearance between the key hole, effectively improved user's outward appearance visual experience.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a partial bottom view of an embodiment of a key assembly of the present invention;

fig. 2 is a schematic structural view of a part of the key assembly where the elastic member and the key cap are engaged;

fig. 3 is a schematic structural view of the elastic member, the key cap and the circuit board of the key assembly of the present invention;

fig. 4 is a schematic view of a partial structure of a casing in the key assembly of the present invention;

description of the reference numerals

Reference numerals	Name (R)	Reference numerals	Name (R)
				100	Key assembly	31	First connecting part
10	Shell body	32	Second connecting part
				11	Key hole	321	First through hole
12	Positioning column	322	Second through hole
				13	Sound pickup hole	323	Third through hole
14	Screw hole site	33	Expansion part
				20	Key cap	331	A first elastic arm
21	Key cap body	332	Second elastic arm
				22	Bump	40	Circuit board
30	Elastic member

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a pair of button subassembly 100 is applied to intelligent pronunciation stereo set, aims at solving the inhomogeneous problem in clearance between button cap 20 and the key hole 11 in the present button subassembly 100, effectively improves user's outward appearance visual experience.

Referring to fig. 1 to fig. 4, in an embodiment of the key assembly 100 of the present invention, the key assembly 100 includes: a case 10, a key cap 20, and an elastic member 30. A key hole 11 is formed in the shell 10; the key cap 20 is arranged in the casing 10, and at least a part of the key cap 20 penetrates through the key hole 11 and is arranged on the surface of the casing 10 in a protruding manner; the elastic member 30 is disposed between the key cap 20 and the casing 10, and at least a portion of the elastic member 30 is telescopically disposed.

In this embodiment, the key cap 20 may be made of a hard material, such as ABS, PC, etc., where ABS is a terpolymer of acrylonitrile, butadiene, and propylene; PC is polycarbonate. The elastic member 30 can be selected from silica gel, rubber, PET, TPU and the like, the PET is polyethylene terephthalate, and the material has good physical and mechanical properties and good dimensional stability; the TPU is a thermoplastic polyurethane elastomer rubber.

The key cap 20 and the elastic member 30 may be fixed by adhering an adhesive or by integrally molding by two-color injection molding. Of course, there are other embodiments, and those skilled in the art can reasonably and effectively set the above concept, and the detailed description is omitted here.

The surface of the key cap 20 facing the elastic member 30 is opened with an opening, and when at least a portion of the key cap 20 is inserted into the key hole 11, the surface of the key cap 20 facing away from the elastic member 30 is exposed outside the casing 10.

The key cap 20 may be provided with a plurality of elastic members 30, which are telescopically arranged between adjacent key caps 20. Specifically, the key cap 20 may be one, two, or three or more.

Therefore, can understand, the technical scheme of the utility model, this button subassembly 100 is through setting up elastic component 30 between button cap 20 and casing, and at least partly scalable of this elastic component 30, when taking place to drag and produce stress according to button cap 20 and elastic component 30, this stress is balanced to the ductility of this elastic component 30 scalable 33 part of accessible, effectively alleviates the influence of dragging each other according to button cap 20 and elastic component 30, avoids taking place to drag according to button cap 20 and elastic component 30 in the assembling process and makes one side according to button cap 20 skew according to button hole 11 when, also, that is, the technical scheme of the utility model solve present according to button subassembly 100 in button cap 20 and according to the inhomogeneous problem in clearance between the button hole 11, effectively improved user's outward appearance visual experience.

Referring to fig. 1, fig. 2 and fig. 4, in an embodiment of the key assembly 100 of the present invention, a positioning column 12 is disposed on a side of the casing 10 facing the key cap 20, and the positioning column 12 is spaced from the key hole 11;

the elastic part 30 is connected with the positioning column 12 and is abutted against the key cap 20;

the part of the elastic member 30 between the positioning column 12 and the key cap 20 is telescopically arranged.

In this embodiment, a plurality of key caps 20 are provided, at least one positioning column 12 is disposed between adjacent key caps 20, and two auxiliary positioning columns are disposed on two opposite sides of each key cap 20, so as to further ensure the stability of the key caps 20.

The portion of resilient member 30 located between positioning post 12 and key cap 20 is telescopically arranged, i.e. the portion is structurally a telescopic portion. Specifically, the retractable portion can be a curved structure, and the elastic member 30 of the retractable portion can effectively balance the stress generated when the key cap 20 and the positioning post 12 are pulled. Wherein, the elastic part 30 is provided with a wave-shaped structure; alternatively, the retractable portion of the elastic member 30 is provided in a gear-like structure; still alternatively, the retractable portion of the elastic member 30 is configured as a spring-like structure; still alternatively, the extensible portion of the resilient member 30 may be provided in an arc-shaped configuration. Of course, there are other embodiments, and those skilled in the art can reasonably and effectively set the above concept, and the detailed description is omitted here.

It can be understood that, this button subassembly 100 connects reference column 12 and button cap 20 through using elastic component 30, and this elastic component 30 is located the part scalable between reference column 12 and button cap 20, when taking place to pull and produce stress between button cap 20 and reference column 12, this stress is balanced to the ductility of this elastic component 30 pars contractilis, effectively alleviates the influence of pulling each other button cap 20 and reference column 12, avoids taking place to pull in the assembly in order to make button cap 20 deviate from one side of pressing key hole 11 when button cap 20 and reference column 12.

Referring to fig. 1 and fig. 2, in an embodiment of the key assembly 100 of the present invention, the elastic member 30 includes:

a first connecting portion 31, the first connecting portion 31 abutting against the key cap 20;

the second connecting part 32, the second connecting part 32 is connected with the positioning column 12; and

and the two opposite sides of the telescopic part 33 are respectively connected with the first connecting part 31 and the second connecting part 32, and the distance between the first connecting part 31 and the second connecting part 32 can be telescopically adjusted.

In this embodiment, the specific manner of abutting the first connecting portion 31 and the key cap 20 is not particularly limited, and those skilled in the art can select the abutting manner according to actual needs. For example, the first connecting portion 31 and the key cap 20 may be fixedly connected by means of adhesive; alternatively, the first connecting portion 31 and the key cap 20 are integrally formed by two-shot molding. The second connecting portion 32 can be sleeved on the positioning column 12 for fixed connection, and the positioning column 12 can also be clamped on the second connecting portion 32 for fixed connection.

The flexible portion 33 is configured as an arc-shaped structure, and one side of the arc-shaped flexible portion 33 is fixedly connected to the first connecting portion 31 and is located on the same plane as the first connecting portion 31. The length of the expansion part 33 is greater than the distance between the first connection part 31 and the second connection part 32, and preferably, the ratio of the distance between the first connection part 31 and the second connection part 32 to the length of the expansion part 33 is 0.95. Of course, the expansion portion 33 may be formed in various forms such as a wave-shaped structure, a gear-shaped structure, a spring-shaped structure, and the like.

This button subassembly 100 is still including circuit board 40, and elastic component 30 is located between circuit board 40 and casing 10, and button cap 20 is formed with the appearance chamber towards the surface of circuit board 40, and first connecting portion 31 is equipped with the bellying towards the surface of casing 10 is protruding, and the bellying is laminated with the internal face that holds the chamber towards the outer wall of casing 10, and the bellying deviates from the protruding portion that is equipped with in surface of casing 10 and touches the portion of connecing, when button cap 20 pushes down, touches portion and circuit board 40 and carries out the electricity and connects. Through the arrangement of attaching the first connecting portion 31 to the inner wall surface of the cavity, the first connecting portion 31 can be tightly connected to the key cap 20, and the first connecting portion 31 is prevented from falling off in the pressing process of the key cap 20.

It can be understood, connect in according to key cap 20 through using first connecting portion 31, second connecting portion 32 is connected in reference column 12, and the both sides of pars contractilis 33 are connected in first connecting portion 31 and second connecting portion 32 respectively, can effectively guarantee to have certain extension space through pars contractilis 33 between first connecting portion 31 and the second connecting portion 32, reduce the internal stress of this elastic component 30, avoid taking place to shrink at elastic component 30 or according to taking place to pull between key cap 20 and the reference column 12, still can guarantee to press key hole 11 and according to the concentricity of key cap 20, guarantee this elastic component 30 simultaneously and be difficult to the emergence fracture at flexible in-process.

Referring to fig. 1 and fig. 2, in an embodiment of the key assembly 100 of the present invention, the second connecting portion 32 has a first through hole 321, and the positioning column 12 is disposed through the first through hole 321.

Specifically, the second connecting portion 32 is an elastic structure, and the first through hole 321 is in interference fit with the positioning column 12.

It can be understood that, through wearing to locate first through-hole 321 with reference column 12, intelligence pronunciation stereo set can take place the vibration in the use, utilizes the elasticity of second connecting portion 32, can play the shock attenuation effect to reference column 12, avoids vibrating and influences tone quality, and the periphery of reference column 12 still can be sealed, improves waterproof.

Certainly, in the utility model discloses in other embodiments, also can be that second connecting portion 32 includes first buckle portion and second buckle portion, and first buckle portion and second buckle portion set up relatively, locate the locator card between first buckle portion and the second buckle portion, and in the same way, this setting also can utilize the elasticity of second connecting portion 32, play the shock attenuation effect to reference column 12, avoid vibrating and influence tone quality, still can seal the periphery of reference column 12, improve waterproof.

Referring to fig. 1 and fig. 2, in an embodiment of the key assembly 100 of the present invention, the flexible portion 33 is an arc-shaped elastic arm, and two ends of the elastic arm are respectively connected to the first connecting portion 31 and the second connecting portion 32.

In this embodiment, the two ends of the elastic arm are connected to the first connecting portion 31 and the second connecting portion 32 to form a hollow structure.

It can be understood that, through setting the pars contractilis 33 to curved elastic arm structure, can effectively reduce pars contractilis 33's use material, reduce material cost, and the arc elastic arm of strip shape has better elasticity and the installation of being more convenient for.

Referring to fig. 1 and fig. 2, in an embodiment of the key assembly 100 of the present invention, the elastic arm includes a first elastic arm 331 and a second elastic arm 332, and the first elastic arm 331 and the second elastic arm are symmetrically disposed on two opposite sides of the key cap 20.

In this embodiment, two positioning columns 12 are symmetrically disposed along two opposite sides of the key cap 20, two first through holes 321 are symmetrically disposed along two opposite sides of the key cap 20 in the second connecting portion 32, two ends of the first elastic arm 331 are respectively connected to one of the first through holes 321 and one side of the key cap 20, and two ends of the second elastic arm 332 are respectively connected to the other of the first through holes 321 and the other side of the key cap 20.

It can be understood that, the first elastic arm 331 and the second elastic arm are symmetrically disposed on two opposite sides of the key cap 20, and this arrangement can effectively ensure that the key cap 20 and the positioning column 12 are uniformly stressed during the process of pulling the key cap 20 and the positioning column 12 from each other, and effectively control the gap between the key cap 20 and the key hole 11 to be uniform.

Referring to fig. 2 and fig. 3 in combination, in an embodiment of the key assembly 100 of the present invention, the key cap 20 includes a key cap body 21 and a plurality of bumps 22, and is a plurality of the bumps 22 are disposed on the key cap body 21 close to the one end of the key hole 11, and surround the circumferential interval of the key cap body 21, the bumps 22 and the inner wall butt of the key hole 11.

In this embodiment, the bump 22 may be a substantially conical boss, and the conical surface abuts against the inner wall of the key hole 11; either the projection 22 is provided as a conical projection 22 or the projection 22 is provided as a pyramidal projection 22.

It can be understood that a plurality of projections 22 are arranged around the key cap body 21 at intervals in the circumferential direction, and the projections 22 abut against the inner wall of the key cap 11, so that the gap between the key cap 20 and the key hole 11 can be effectively controlled, and the gap between the key cap 20 and the key hole 11 is ensured to be uniform.

Referring to fig. 2 and fig. 3, in an embodiment of the key assembly 100 of the present invention, the protrusion 22 is a tapered protrusion 22, and the cross-sectional area of the protrusion 22 gradually increases along the pressing direction of the key cap 20.

In this embodiment, the bump 22 is a triangular pyramid structure, wherein a first conical surface of the triangular pyramid is connected to the outer wall of the key cap 20, a second conical surface is flush with the surface of the key cap 20 facing the circuit board 40, and an edge formed by intersection of a third conical surface and a fourth conical surface abuts against the inner wall of the key hole 11. A trapezoidal guide section is formed on the inner wall of the key hole 11, so that the protrusion 22 is matched with the inner wall of the key hole 11.

It can be understood that, by setting the protrusion 22 to be a tapered structure, the contact area between the protrusion 22 and the hole wall of the key hole 11 can be effectively reduced, the risk of vibration sound is reduced, and the influence on the sound quality is reduced.

Referring to fig. 1 and fig. 4, in an embodiment of the key assembly 100 of the present invention, a circuit board 40 is disposed in the casing 10, and the elastic member 30 is disposed between the casing 10 and the circuit board 40; the housing 10 further defines a sound collecting hole 13, and the elastic member 30 defines a second through hole 322 communicating with the sound collecting hole 13.

In this embodiment, the second through hole 322 is disposed between the two first through holes 321, and is disposed on the same horizontal line with the two first through holes 321.

It can be understood that, by providing the second through hole 322 on the surface of the sound pickup hole 13, the sealing and damping effects of the sound pickup hole 13 can be effectively improved.

In an embodiment of the present invention, in the key assembly 100, a screw hole 14 is further protruded on a surface of the casing 10, the screw hole 14 and the positioning column 12 are disposed on the same surface of the casing 10, the elastic member 30 has a third through hole 323, and the screw hole 14 is disposed through the third through hole 323. The third through hole 323 is disposed between the two first through holes 321, and the third through hole 323 and the second through hole 322 are disposed at an interval. It can be understood that the third through hole 323 is sleeved on the outer wall of the screw hole site 14, so that the damping effect of the screw hole site 14 can be effectively improved.

The utility model also provides an intelligence pronunciation stereo set, this intelligence pronunciation stereo set include as before button subassembly 100, the concrete structure of this button subassembly 100 sees in detail aforementioned embodiment. Since the intelligent voice sound box adopts all the technical schemes of the above embodiments, all the beneficial effects brought by all the technical schemes of all the above embodiments are at least achieved, and are not repeated here.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A key assembly, comprising:

2. The key assembly of claim 1, wherein a side of the casing facing the key cap is provided with a positioning post, and the positioning post is spaced from the key hole;

3. The key assembly of claim 2, wherein the resilient member comprises:

the first connecting part is abutted with the key cap;

the second connecting part is connected with the positioning column; and

4. The key assembly of claim 3, wherein the second connecting portion defines a first through hole, and the positioning post is disposed through the first through hole.

5. The key assembly of claim 3, wherein the flexible portion is an arc-shaped elastic arm, and two ends of the elastic arm are respectively connected to the first connecting portion and the second connecting portion.

6. The key assembly of claim 5, wherein the elastic arm comprises a first elastic arm and a second elastic arm, and the first elastic arm and the second elastic arm are symmetrically disposed on opposite sides of the key cap.

7. The key assembly according to any one of claims 1 to 6, wherein the key cap includes:

a key cap body;

8. The key assembly according to claim 7, wherein the protrusion is a tapered protrusion, and a cross-sectional area of the protrusion gradually increases in a pressing direction of the key cap.

9. The key assembly according to any one of claims 1 to 6, wherein a circuit board is disposed in the casing, and the elastic member is disposed between the casing and the circuit board;

the shell is further provided with a sound pickup hole, and the elastic piece is provided with a second through hole communicated with the sound pickup hole.

10. An intelligent voice sound, characterized by comprising a key assembly according to any one of claims 1 to 9.