CN108447721B

CN108447721B - Key limiting structure and mobile terminal with same

Info

Publication number: CN108447721B
Application number: CN201810298870.XA
Authority: CN
Inventors: 周顺
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2018-03-30
Filing date: 2018-03-30
Publication date: 2021-11-02
Anticipated expiration: 2038-03-30
Also published as: CN108447721A

Abstract

The invention discloses a key limiting structure, which comprises: the mounting bracket comprises a through hole, a positioning groove, a key and a limiting piece, wherein the key comprises a pressing part, a fixing part and the limiting piece, the key penetrates through the through hole, the limiting piece is contained in the positioning groove, the limiting piece is clamped into the mounting bracket and between the fixing parts, and the limiting piece supports and holds the fixing part so as to be opposite to the key for limiting. The invention also discloses a mobile terminal with the key limiting structure. This button limit structure only needs to set up the constant head tank on mounting bracket or center, and the constant head tank can be spacing with the button in putting into spacing piece, and spacing piece can be applied to any structural design who has the constant head tank as a module, and the commonality is strong, simple structure, and assembly and disassembly is convenient.

Description

Key limiting structure and mobile terminal with same

Technical Field

The present disclosure relates to a limiting structure, and particularly to a key limiting structure and a mobile terminal having the same.

Background

In the existing mobile terminal products such as mobile phones and computers, key assembly modes are two, the first mode is that a characteristic groove is formed in a middle frame of the mobile terminal product, and keys are installed in a limiting mode through a limiting block, so that the requirement on processing the middle frame is very high, and the installation is complex; another kind is that the button structure comprises key cap, support frame, elastomer, film electroplax etc. wherein elastomer and film circuit board need glue together to make things convenient for the equipment, however in the veneer in-process, if the volume of gluing is too big, can produce the phenomenon of excessive glue, reduces the yield of product, influences the kludge of button structure and uses, and the veneer easily produces the dislocation, needs special positioning jig to fix a position, and the equipment time is long, and is with high costs.

Disclosure of Invention

The invention mainly aims to provide a key limiting structure and a mobile terminal with the same.

In order to achieve the above object, the present invention provides a key position limiting structure, including: the mounting frame comprises a through hole and a positioning groove; the key comprises a pressing part and a fixing part; the key penetrates through the through hole, the limiting piece is contained in the positioning groove, the limiting piece is clamped between the mounting frame and the fixing part, and the limiting piece abuts against the fixing part to limit the key.

Optionally, the mounting bracket includes side frame and diapire, the through-hole is located the side frame, the constant head tank is located the diapire, the through-hole with the constant head tank intercommunication.

Optionally, at least two protruding blocks are arranged on the bottom wall, a groove is formed by the two protruding blocks, and the groove is communicated with the positioning groove.

Optionally, the fixing portion includes a connecting portion and a hook, and the length of the connecting portion is greater than the length of the through hole in the axial direction.

Optionally, the limiting piece comprises a body, an ear part, a positioning part and a limiting part, the body comprises a bottom plate, a first panel and a second panel, the first panel and the second panel extend from the bottom plate, the ear part extends from two sides of the first panel, the ear part is coplanar with the first panel, the limiting part is bent and extends from the top end of the second panel, the positioning part extends from the second panel, and the limiting part is the same as the extending direction of the positioning part.

Optionally, the positioning groove includes a first sidewall and a second sidewall, the first panel abuts against the first sidewall, the second panel abuts against the second sidewall, and the positioning portion is embedded into the groove for positioning.

Optionally, the ear is clamped between the positioning groove and the fixing part, and the fixing part is limited by the ear.

Optionally, the ear and the bottom plate prevent the key from moving.

Optionally, when the limiting piece is pressed, the limiting portion deforms and moves towards the positioning portion, and the limiting portion contacts the positioning portion to limit the limiting piece to continue deforming.

In addition, the invention also provides a mobile terminal which is characterized by comprising the key limiting structure.

According to the key limiting structure and the mobile terminal with the key limiting structure, the key is limited only by arranging the positioning groove on the mounting frame or the middle frame without high requirement on processing of the middle frame, the limiting sheet is placed in the positioning groove to limit the key, the limiting sheet can be used as a module to be applied to any structural design with the positioning groove, the universality is high, and the key limiting structure is simple in structure of the mounting frame or the middle frame, convenient to assemble and disassemble and high in operability.

Drawings

Fig. 1 is a structural diagram of a key mounted on a mounting frame in a preferred embodiment of the invention, wherein the key is mounted on the mounting frame through a limiting piece.

Fig. 2 is a schematic structural diagram of a mounting frame of a key position limiting structure in a preferred embodiment of the invention.

Fig. 3 is a partial structural view of another direction of the mounting frame of the key positioning structure in the preferred embodiment of the invention.

Fig. 4 is a schematic structural diagram of a key of the key position limiting structure in the preferred embodiment of the invention.

Fig. 5 is a schematic structural diagram of a position-limiting sheet of the key position-limiting structure in the preferred embodiment of the invention.

Fig. 6 is an exploded view of a mobile terminal according to another preferred embodiment of the invention.

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

Description of the main elements

Key position limiting structure 100

Mounting frame, middle frame 10

Side frame 12

Through-hole 121

Bottom wall 14

Positioning groove 141

First side wall 1411

Second sidewall 1412

Bump 142

Groove 143

Push button 20

Pressing part 22

Fixing part 24

Connecting part 241

Hook 242

Limiting sheet 30

Body 31

Bottom plate 311

First panel 312

Second panel 313

Ear 32

Stopper 33

Positioning part 34

Mobile terminal 200

Wiring board 40

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the structure of the key assembly on the mounting frame in the preferred embodiment of the invention, the key is mounted on the mounting frame through the limiting piece. The key limiting structure of the embodiment is mainly applied to mobile terminals such as mobile phones and tablets and the like which need keys. In fig. 1, the key position limiting structure 100 includes a mounting frame 10, a key 20 and a position limiting sheet 30, wherein the key 20 and the position limiting sheet 30 are assembled on the mounting frame 10.

Fig. 2 is a schematic structural diagram of a mounting frame of a key position limiting structure according to a preferred embodiment of the invention. The mounting frame 10 includes a side frame 12 and a bottom wall 14, and the side frame 12 has a through hole 121.

Fig. 3 is a partial structural view of the mounting frame of the key position limiting structure in another direction according to the preferred embodiment of the invention. Referring to fig. 2, in the bottom wall 14, there are at least two positioning slots 141 and at least two protrusions 142, in this embodiment, a groove 143 is formed between the two protrusions 142, the positioning slot 141 includes a first sidewall 1411 and a second sidewall 1412, the through hole 121 penetrates through the first sidewall 1411 to communicate with the positioning slot 141, and the groove 143 penetrates through the second sidewall 1412 to communicate with the positioning slot 141.

Fig. 4 is a schematic structural diagram of a key of the key position limiting structure according to the preferred embodiment of the invention. The key 20 includes a pressing portion 22 and a fixing portion 24, the fixing portion 24 includes a connecting portion 241 and a hook 242, in this embodiment, the number of the fixing portions 24 is 2, and in other embodiments, the number may be one or more.

Fig. 5 is a schematic structural view of a position-limiting sheet of the key position-limiting structure according to the preferred embodiment of the invention. The limiting sheet 30 comprises a body 31, an ear portion 32, a limiting portion 33 and a positioning portion 34, the body 31 is of a U-shaped structure and comprises a bottom plate 311, and a first panel 312 and a second panel 313 which vertically extend from the bottom plate 311, the ear portion 32 extends from two sides of the first panel 312, namely, the ear portion 32 is coplanar with the first panel 312 and is a part of the first panel 312, the limiting portion 33 extends from the top end of the first panel 312 in a bending manner and extends towards the second panel 313, the limiting portion 33 is spaced from the second panel 313, the positioning portion 34 extends from the second panel 313 in a bending manner and is the same as the extending direction of the limiting portion 33, the height of the positioning portion 34 is not less than the height of the limiting portion 33, and the limiting portion 33 is used for slightly deforming and moving towards the positioning portion 34 when the limiting sheet is extruded and contacts the positioning portion 34 to limit the transitional deformation of the limiting sheet to fail.

The assembly process of the key position limiting structure is described in detail below.

As shown in fig. 1 to 5, during assembly, the fixing portion 24 of the key 20 passes through the through hole 121 of the side frame 12 of the mounting frame 10 and enters the positioning groove 141, because the length of the connecting portion 241 is greater than the length of the through hole 121 in the axial direction, the hook 242 passes through the through hole 121 and has a gap with the first sidewall 1411 of the positioning groove 141, the position-limiting sheet 30 is assembled into the positioning groove 141, the ear portion 32 of the position-limiting sheet 30 is clamped into the gap between the positioning groove 142 and the first sidewall 1411, the first panel 312 of the body 31 is opposite to the first sidewall 1411 of the positioning groove 141, the second panel 313 is opposite to the second sidewall 1412, and the positioning portion 34 is embedded into the groove 143 for positioning, thereby completing the assembly. Wherein, the design of ear 32 makes ear 32 and bottom plate 311 butt fixed part 24 of button 20 in order to avoid the button 20 motion, and ear 32 can be one or two for it is spacing multi-directionally, and in the same way, can set up a plurality of lugs 142 in order to fix a position a plurality of spacing pieces 30 on the mounting bracket, no longer gives more details here. Through setting up constant head tank 141 on mounting bracket 10, during spacing piece 30 put into constant head tank 141, utilize ear 32 card to go into between mounting bracket 10 and the button 20, and just through the 31 screens of body of spacing piece 30, only need set up the constant head tank on the mounting bracket 10, can realize the spacing of button, spacing piece 30 can be used to any mounting bracket structure of setting up the constant head tank, simple structure, and easy operation, the equipment is convenient.

Another preferred embodiment of the present invention provides a mobile terminal 200, as shown in fig. 6, the mobile terminal 200 at least includes the key position limiting structure described in the above embodiments, wherein the mounting frame 10 is the middle frame 10 of the mobile terminal, and further includes a circuit board 40 for electrically connecting with the key 20, which is not described herein again.

The mobile terminal in this embodiment may include a device terminal having a key, such as a mobile phone, a tablet computer, a notebook computer, a palm top computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, and the like.

According to the key limiting structure and the mobile terminal with the key limiting structure, the key limiting structure only needs to be provided with the positioning groove on the mounting frame or the middle frame, the middle frame does not need to be processed with high requirements, the limiting sheet is placed in the positioning groove to limit the key, the limiting sheet can be used as a module to be applied to any structural design with the positioning groove, the universality is high, the structure of the key limiting structure on the mounting frame or the middle frame is simple, the assembly and the disassembly are convenient, and the operability is high.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A key limiting structure is characterized by comprising:

the mounting frame comprises a through hole and a positioning groove;

the key comprises a pressing part and a fixing part; and

the limiting piece penetrates through the through hole, the limiting piece is accommodated in the positioning groove, the limiting piece is clamped between the mounting frame and the fixing part, and the limiting piece abuts against the fixing part to limit the key;

the mounting frame comprises a side frame and a bottom wall, the through hole is located in the side frame, the positioning groove is located in the bottom wall, and the through hole is communicated with the positioning groove;

at least two convex blocks are arranged on the bottom wall, the two convex blocks form a groove, and the groove is communicated with the positioning groove;

spacing piece includes body, ear, location portion and spacing portion, the body includes the bottom plate and follows first panel and second panel that the bottom plate extends, the ear is followed first panel both sides extend, just ear with first panel coplane, spacing portion follows first panel top is buckled and is extended, and extends towards the second panel, and separates between spacing portion and the second panel, location portion follows the second panel is buckled and is extended, just spacing portion with location portion extending direction is the same.

2. The key position limiting structure according to claim 1, wherein the fixing portion comprises a connecting portion and a hook, and the length of the connecting portion is greater than the length of the through hole in the axial direction.

3. The key position limiting structure according to claim 1, wherein the positioning groove comprises a first side wall and a second side wall, the first panel abuts against the first side wall, the second panel abuts against the second side wall, and the positioning portion is embedded into the groove for positioning.

4. The key position limiting structure according to claim 1, wherein the ear portion is clamped between the positioning groove and the fixing portion, and the fixing portion is limited by the ear portion.

5. The key retention structure of claim 1, wherein the ears and the base plate inhibit movement of the key.

6. The key position limiting structure according to claim 1, wherein when the position limiting sheet is pressed, the position limiting portion deforms and moves towards the positioning portion, and the position limiting portion contacts the positioning portion to limit the position limiting sheet from continuing to deform.

7. A mobile terminal, characterized in that it comprises a key retention structure according to any of claims 1-6.