CN110047679B

CN110047679B - Key device and mobile terminal comprising same

Info

Publication number: CN110047679B
Application number: CN201910402612.6A
Authority: CN
Inventors: 李峰
Original assignee: Shanghai Moruan Communication Technology Co Ltd
Current assignee: Shanghai Moruan Communication Technology Co Ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-10-09
Anticipated expiration: 2039-05-15
Also published as: CN110047679A

Abstract

The invention discloses a key device and a mobile terminal comprising the same. The mobile terminal comprises the key device. According to the key device and the mobile terminal comprising the same, the elastic arm is arranged between the key body and the positioning part, so that the deformation and resilience of the key body are effectively enhanced, the mobility of the key device is improved, and the key device is ensured to pass smoothly in the service life test process.

Description

Key device and mobile terminal comprising same

Technical Field

The invention relates to a key device and a mobile terminal comprising the same.

Background

The traditional keys for mobile phones are usually designed by adopting a plastic part and steel sheet structure to complete the overall structure of the keys. Because the plastic part adopts hardness relatively speaking harder plastic, cell-phone casing is also stereoplasm plastic part shell, and the button is felt trouble before the test, and cell-phone casing and button relevant size all are in the design range, but often rub easily in cell-phone button thousands or even in the ten thousand life-span test processes and wear and tear and cause phenomenons such as card key, button both ends height unevenness, the cracked condition in middle part of the stress concentration button has taken place in the test of longer button life.

The mode that the piece is moulded to stereoplasm that appears in recent years adds soft plastic part and combines obtains using gradually in the cell-phone button, as shown in figure 1 for prior art's button device, fixes chucking button 1 ' through the inside muscle bit architecture cooperation of location square block body 2 ' and complete machine to the realization is to button 1 ' location, prevents that button 1 ' from dropping in the assembling process. However, in the actual testing process, after the key is pressed ten thousand times, the positioning structure stretches and contracts in a reciprocating motion for countless times, so that the whole length of the positioning structure is contracted, the phenomenon of key locking is shown, and the joint of the key positioning structure and the hard soft glue is seriously broken, so that the key service life test fails.

Disclosure of Invention

The invention aims to overcome the defects of key locking, serious fracture and the like in the prior art and provides a key device and a mobile terminal comprising the same.

The invention solves the technical problems through the following technical scheme:

the key device is characterized by further comprising an elastic arm, and two ends of the elastic arm are respectively connected to the key body and the positioning part.

In this scheme, adopt above-mentioned structural style, through set up the elastic arm between button body and locating component, the elastic arm can guarantee the button body pressing the good deformation of in-process in tensile direction, the process elastic arm who presses the button body is tensile and shrinkage motion, the elastic arm has good deformation and resilience in tensile direction, the deformation and the resilience ability of button body have effectively been strengthened, the activity degree of button device has been improved, the smooth of button device in life-span test process has been guaranteed.

Preferably, the elastic arm includes a first connecting portion, an elastic portion and a second connecting portion connected in sequence, the first connecting portion is connected to the key body, the second connecting portion is connected to the positioning member, and the elastic portion can stretch and contract.

In this scheme, adopt above-mentioned structural style, the elastic arm elastic component can produce deformation when the atress for can stretch or shrink between first connecting portion and the second connecting portion, effectively strengthened the deformation and the resilience ability of button body, improved button device's activity.

Preferably, a cavity is formed in the elastic part, and two sides of the cavity respectively extend and bulge outwards along the thickness direction of the elastic arm.

In this scheme, adopt above-mentioned structural style, the elastic component has the space of buffering through the cavity, and the elastic component can be with cavity internal compression or outside uplift when the atress produces deformation, has good deformation and resilience ability. Meanwhile, the structure is simple, and the processing and the manufacturing are convenient.

Preferably, the shape of the elastic part is a Chinese character 'hui'.

Preferably, a buffer groove is arranged on one side of the positioning component, which is connected with the elastic arm.

In this scheme, adopt above-mentioned structural style, the dashpot has the space of buffering deformation for the button body can give the button body when using and increase the distance of partly buffering doing the tensile shrink action, has further strengthened the deformation and the resilience ability of button body, has improved button device's activity, has guaranteed the smooth passing through of button device in life-span test process.

Preferably, the number of the buffer slots is multiple, and the shape of the multiple buffer slots is wavy.

Preferably, the key body comprises a hard portion and a soft portion, a groove is formed in one side of the hard portion, the soft portion is arranged in the groove, and the elastic arm is connected to the soft portion.

Preferably, the soft portion, the elastic arm and the positioning component are integrally formed.

A mobile terminal is characterized in that the mobile terminal comprises the key device.

In this scheme, adopt above-mentioned structural style, effectively strengthened button device's deformation and resilience ability, improved button device's activity degree, guaranteed the smooth passing through of mobile terminal in life-span test process.

On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.

The positive progress effects of the invention are as follows:

according to the key device and the mobile terminal comprising the same, the elastic arm is arranged between the key body and the positioning part, so that the deformation and resilience of the key body are effectively enhanced, the mobility of the key device is improved, and the key device is ensured to pass smoothly in the service life test process.

Drawings

Fig. 1 is a schematic structural diagram of a key device in the prior art.

Fig. 2 is a schematic structural diagram of a key device of a mobile terminal according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.

Fig. 4 is another schematic structural diagram of the mobile terminal according to the embodiment of the present invention.

Description of reference numerals:

key 1'

Positioning square block 2'

Key body 1

Hard portion 11

Soft portion 12

Boss 13

Positioning part 2

Buffer tank 21

Spring arm 3

First connecting portion 31

Elastic part 32

Second connecting portion 33

Cavity 34

Housing 10

Tendon position 101

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 2, 3 and 4, the mobile terminal according to the embodiment of the present invention includes a key device. The key device comprises a key body 1, a positioning part 2 and an elastic arm 3, wherein two ends of the elastic arm 3 are respectively connected to the key body 1 and the positioning part 2. Through set up elastic arm 3 between button body 1 and locating component 2, elastic arm 3 can guarantee button body 1 pressing the good deformation of in-process in tensile direction, the process elastic arm 3 of pressing button body 1 is tensile and shrinkage motion, elastic arm 3 has good deformation and resilience in tensile direction, the deformation and the resilience ability of button body 1 have effectively been strengthened, the activity of button device has been improved, the smooth of button device at life-span test in-process of mobile terminal has been guaranteed.

The elastic arm 3 comprises a first connecting part 31, an elastic part 32 and a second connecting part 33 which are connected in sequence, wherein the first connecting part 31 is connected to the key body 1, the second connecting part 33 is connected to the positioning part 2, and the elastic part 32 can stretch and contract. The elastic arm 3 is connected with the key body 1 through the first connecting portion 31 and is connected with the positioning component 2 through the second connecting portion 33, the elastic portion 32 can deform when the elastic arm 3 is stressed, so that the first connecting portion 31 and the second connecting portion 33 can be stretched or contracted, the deformation and resilience of the key body 1 are effectively enhanced, the activity of the key device is improved, and the key device of the mobile terminal can smoothly pass through the service life test process.

The elastic portion 32 has a cavity 34 therein, and both sides of the cavity 34 are respectively bulged outwardly in the thickness direction of the elastic arm 3. The elastic part 32 has a buffering space through the cavity 34, and the elastic part 32 can compress the cavity 34 inwards or bulge outwards when being deformed under stress, so that the elastic part has good deformation and rebound capacity. Meanwhile, the structure is simple, and the processing and the manufacturing are convenient. The shape of the elastic portion 32 may be a square.

Be provided with a plurality of muscle position 101 on casing 10, be formed with installation space between a plurality of muscle position 101, positioning element 2 press locate in installation space and with a plurality of muscle position 101 between support to contact, mobile terminal is in the assembling process, makes key device be connected with casing 10 through positioning element 2, prevents that key device from dropping in the assembling process.

The positioning member 2 is provided with a buffer groove 21 at a side thereof to which the elastic arm 3 is connected. When the positioning part 2 is in fit contact with the shell 10, the key device can be clamped to prevent falling; meanwhile, the buffer slot 21 has a space for buffering deformation, so that the key body 1 can be provided with a distance for increasing a part of buffering when the key body 1 is stretched and contracted in use, the deformation and resilience of the key body 1 are further enhanced, the activity of the key device is improved, and the key device of the mobile terminal can smoothly pass through the service life test process.

The number of the buffer grooves 21 is plural, and the shape of the plural buffer grooves 21 is wavy. The buffer grooves 21 can be more beneficial to buffer deformation of the positioning component 2, and increase a part of buffer distance for stretching and contracting the key body 1; meanwhile, the processing and the manufacturing are convenient. The magnitude of the buffering distance of the deformation generated at the side of the positioning member 2 connected with the second connecting portion 33 depends on the wave-shaped depth of the plurality of buffering grooves 21, and the other side surfaces of the positioning member 2 not connected with the second connecting portion 33 can have a gap with the rib 101, so that the buffering effect of the positioning member 2 is enhanced by the gap fit.

The key body 1 comprises a hard part 11 and a soft part 12, one side of the hard part 11 is provided with a groove, the soft part 12 is arranged in the groove, and the elastic arm 3 is connected with the soft part 12. The hole has been seted up in the outside of casing 10, and stereoplasm portion 11 is the hard plastic part of outer layer in the button body 1 and passes the hole for stereoplasm portion 11 and casing 10 clearance fit fix button body 1, and convenience of customers adjusts the operation to stereoplasm portion 11. The soft portion 12 is arranged in a groove of the hard portion 11, the soft portion 12 is provided with two bosses 13, and a contact increasing and decreasing area is formed in the soft portion 12 for adjusting the volume, pressing and contracting movement are carried out along the protruding direction of the bosses 13, force is transmitted to the two bosses 13 when a user uses the key device, so that the two bosses 13 press circuit contacts inside the mobile terminal respectively, and the volume is increased or reduced.

The soft portion 12, the elastic arm 3 and the positioning member 2 are integrally formed. The connection strength among the soft part 12, the elastic arm 3 and the positioning part 2 is effectively enhanced, and the service life of the key device is prolonged; meanwhile, the processing and the manufacturing are convenient. The soft part 12, the elastic arm 3 and the positioning member 2 may be made of rubber materials, so that the cost is low, and the characteristics of light weight and good bending property of the rubber materials are fully exerted.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. The utility model provides a key device, its includes button body and locating part, its characterized in that, the button device still includes the elastic arm, the both ends of elastic arm connect respectively in the button body with locating part, the elastic arm is including the first connecting portion, elastic part and the second connecting portion that connect gradually, first connecting portion connect in the button body, the second connecting portion connect in locating part, the elastic part can stretch and shrink the motion there is the cavity in the elastic part, just the both sides of cavity are followed respectively the outside uplift that extends of thickness direction of elastic arm, the thickness direction does the elastic part produces the inside compression or the outside uplift direction of deformation at the atress.

2. The key device of claim 1, wherein the resilient portion is shaped in a zigzag manner.

3. The key device of claim 1, wherein a buffer slot is formed in the positioning member on a side thereof to which the elastic arm is connected.

4. The key device according to claim 3, wherein the number of the buffer grooves is plural, and the plural buffer grooves are wavy in shape.

5. The key device according to claim 1, wherein the key body includes a hard portion and a soft portion, a groove is formed on one side of the hard portion, the soft portion is disposed in the groove, and the elastic arm is connected to the soft portion.

6. The key device of claim 5, wherein the soft portion, the resilient arms, and the positioning member are integrally formed therebetween.

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