CN206235420U - Side key component and terminal device - Google Patents
Side key component and terminal device Download PDFInfo
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- CN206235420U CN206235420U CN201621143350.4U CN201621143350U CN206235420U CN 206235420 U CN206235420 U CN 206235420U CN 201621143350 U CN201621143350 U CN 201621143350U CN 206235420 U CN206235420 U CN 206235420U
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- key component
- side key
- fpc
- strain gage
- resistance strain
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Abstract
The utility model is related to communication equipment field, discloses a kind of side key component and terminal device.In the utility model, a kind of side key component is applied to terminal device；Side key component includes：Flexible PCB FPC and resistance strain gage；Resistance strain gage includes sensitive grid region and the pin drawn by sensitive grid region；The first surface of FPC is provided with Lu Tong areas one-to-one with pin；Resistance strain gage fits in the first surface of FPC, and pin is electrically connected to Lu Tong areas.The invention also discloses a kind of terminal device.Compared with prior art, the utility model is provided side key component and terminal device, can avoid the phenomenon of loose contact between side key component and circuit board.
Description
Technical field
The utility model is related to communication equipment field, more particularly to side key component and terminal device.
Background technology
In recent years, with the communication technology continue to develop and the epoch continuous progress, mobile phone, computer, etc. mobile device
Essential use instrument in people's daily life is turned into, because mobile phone or computer carry convenient, using simple, has given
The life of people brings great convenience.
Existing mobile device side key component is mainly by metal dome to realize, the side switch operation principle of this structure is
Metal dome is located at the conducting position of flexible PCB FPC, and when depressed, the central point of metal dome is recessed, touches on FPC
Dew copper region, so as to form loop with the periphery of metal dome, electric current passes through, and the on-off action of side key component is achieved.But
It is this to be designed with following drawback：When the space between metal dome and FPC dew copper region enters dust, salt fog, sweat, pot is young
Can there is short circuit or be not turned on risk in piece, can influence the functional realiey of side key component with FPC dew copper region.
Utility model content
The purpose of the utility model embodiment is to provide a kind of side key component and terminal device, can avoid side key component
The phenomenon of loose contact between circuit board.
In order to solve the above technical problems, the utility model embodiment provides a kind of side key component, terminal device is applied to；
The side key component includes：Flexible PCB FPC and resistance strain gage；Resistance strain gage includes sensitive grid region and by sensitive grid region
The pin of extraction；The first surface of FPC is provided with Lu Tong areas one-to-one with pin；Resistance strain gage fits in the of FPC
One surface, and pin is electrically connected to Lu Tong areas.
The utility model embodiment provides a kind of terminal device, including：Printed circuit board (PCB), side switch group described above
Part；Printed circuit board (PCB) is provided with processor, and printed circuit board (PCB) is connected with FPC, wherein, resistance strain gage is electrically connected to processor.
The utility model embodiment in terms of existing technologies because can deform during the depressed power of resistance strain gage,
The resistance of resistance strain gage can be changed, therefore in the application, press resistance strain gage, and the change of its resistance is passed by FPC
To processor, and then realize the keypress function of side key component.By the way that resistance strain gage to be fitted in the first surface of FPC, and
The pin of resistance strain gage is electrically connected to the Lu Tong areas of FPC so that even if having dust, sweat, water between resistance strain gage and FPC
Vapour etc. enters, and does not also interfere with the keypress function of side key component.And because the pin of resistance strain gage is directly electrically connected to FPC
Lu Tong areas, therefore contact of the resistance strain gage with FPC is reliable, and short circuit or showing of being not turned on are not susceptible between the two
As.
In addition, side key component also includes reinforcement steel disc；The reinforcement steel disc fits in the second surface of the FPC.Pass through
In the second surface lamination reinforcement steel disc of FPC, the intensity of FPC is further increased.
In addition, the thickness range of reinforcement steel disc is between 0.15mm to 0.2mm.By reinforcement in the utility model implementation method
The thickness control of steel disc ensure that resistance strain gage can have good deformability between 0.15mm to 0.2mm, both, and
Can play a part of to increase FPC intensity.
In addition, side key component also includes elastic layer；The elastic layer fits in the second surface of the FPC.By in FPC
Second surface laminating posterior limiting, both can to a certain extent increase the intensity of FPC, can be pressed in side key component again
During pressure, for the deformation of FPC provides restoring force.
In addition, side key component also includes metal clips；The metal clips is in arc surfaced；The edge of the arc surfaced is fixed
In the resistance strain gage, or it is fixed on the FPC；The middle convex closure of the arc surfaced corresponds to the sensitive grid region.It is logical
Cross and the edge of arc surfaced metal clips is fixed on resistance strain gage or FPC, both ensure that the pressing feel of side key component, and
Pressing force can be delivered to carries out subsequent treatment on resistance strain gage.
In addition, side key component also includes that insulation wheat is drawn；The insulation wheat draws the outer surface for being covered in the metal clips, and
It is fixed on the resistance strain gage or FPC.Drawn by setting an insulation wheat in the outer surface of metal clips, and be fixed and electricity
On resistance foil gauge or FPC, the fixation and protection to metal clips are realized.
Brief description of the drawings
Fig. 1 is a kind of structural profile schematic diagram of side key component of the utility model first embodiment；
Fig. 2 is the top view of resistance strain gage in a kind of side key component of the utility model first embodiment；
Fig. 3 is a kind of structural profile schematic diagram of side key component of the utility model second embodiment；
Fig. 4 is a kind of structural profile schematic diagram of the side key component of implementation method of the utility model the 3rd；
Fig. 5 is a kind of structural profile schematic diagram of the terminal device of implementation method of the utility model the 5th；
Fig. 6 is a kind of exploded perspective view of terminal device of implementation method of the utility model the 5th；
Fig. 7 is the structural profile schematic diagram of the implementation method of the utility model the 6th another kind terminal device.
Specific embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Each implementation method of type is explained in detail.However, it will be understood by those skilled in the art that each in the utility model
In implementation method, in order that reader more fully understands the application and proposes many ins and outs.But, even if without these skills
Art details and many variations based on following implementation method and modification, it is also possible to realize the application technical side required for protection
Case.
First embodiment of the present utility model is related to a kind of side key component, is applied to terminal device, as shown in Figure 1, Figure 2 institute
Show.
Side key component includes：Flexible PCB FPC100 and resistance strain gage 200.Wherein, the first surface of FPC100, i.e.,
The one side contacted with resistance strain gage 200 is provided with Lu Tong areas, wherein, the size in Lu Tong areas can be set according to actual needs,
Here it is not limited；Resistance strain gage 200 includes sensitive grid region 201 and the pin 202 drawn by sensitive grid region 201.
Specifically, the pin 202 that the Lu Tong areas that the first surface of FPC100 is provided with draw with sensitive grid region 201 is one by one
Correspondence, resistance strain gage 200 fits in the first surface of FPC100, and pin is connected to Lu Tong areas by way of electrical connection.
In present embodiment, because can deform during the depressed power of resistance strain gage, the resistance of resistance strain gage can occur
Change, therefore in the application, resistance strain gage is pressed, the change of its resistance passes to processor by FPC, and then realizes side switch group
The keypress function of part.By the way that resistance strain gage to be fitted in the first surface of FPC, and the pin of resistance strain gage is electrically connected to
The Lu Tong areas of FPC so that even if thering is dust, sweat, steam etc. to enter between resistance strain gage and FPC, also do not interfere with side switch
The keypress function of component.And the Lu Tong areas of FPC, therefore resistance strain gage are directly electrically connected to due to the pin of resistance strain gage
Contact with FPC is reliable, and short circuit or the phenomenon being not turned on are not susceptible between the two.
Second embodiment of the present utility model is related to a kind of side key component.Base of the present embodiment in first embodiment
Further improvement is done on plinth, specific improvements are：Reinforcement steel disc is fitted with the second surface of FPC, the strong of FPC is increased
Degree.
As shown in figure 3, in addition to the components shown in figure 1, side key component also includes reinforcement steel disc 300.The reinforcement steel
Piece 300 fits in the second surface of FPC100, i.e., the relative one side with resistance strain gage 200 is fitted with, for strengthening the strong of FPC
Degree.
It should be noted that in present embodiment by the thickness control of reinforcement steel disc 300 between 0.15mm to 0.2mm,
So as to avoid because reinforcement steel disc 300 is blocked up, resistance strain gage 200 is caused to be not susceptible to deformation, or due to reinforcement steel disc 300
It is too thin, it is impossible to play a part of to increase the intensity of FPC.
One metal clips 400 can also be set in order to ensure the pressing feel of side key component, in side key component, such as Fig. 3 institutes
Show, metal clips 400 is in arc surfaced, and the edge of arc surfaced is fixed on resistance strain gage 200, can specifically be fixed using dispensing
Mode, is not limited here, and the middle convex closure of arc surfaced corresponds to sensitive grid region 201, when the depressed power of metal clips 400
When, deform recessed, you can pressing force is passed through into sensitive grid region 201 and is delivered on resistance strain gage 200.In practical application
In, the size of resistance strain gage 200 can be slightly less than FPC100, thus the arc surfaced edge of metal clips 400 also can directly be consolidated
Due on FPC100.
In addition, for more preferable fixed metal clips 400, one layer of insulation can also be covered in the outer surface of metal clips 400
Wheat draws 500.Draw 500 to be fixed on resistance strain gage 200 or FPC100 by by insulation wheat, fixation is played to metal clips 400
Effect, and the influence of outer bound pair metal clips 400 is effectively prevent, so as to serve the effect of pre- protection.
In the present embodiment, fitted the suitable reinforcement steel disc of a layer thickness by the second surface of FPC, ensureing electricity
Resistance foil gauge can well deformation while, increased the intensity of FPC；In addition, by fixing metal elastic on resistance strain gage
Piece, maintains the feel of side key component pressing, and can timely be delivered on resistance strain gage pressing force；By in metal
The outermost layer covering insulation wheat of shell fragment is drawn and fixation is not only served to metal clips, and pre- protection is also played to metal clips
Effect, effectively prevent dust, sweat, steam etc. and is entered in side key component by gap, further ensure resistance strain gage
Circuit between FPC can be with normally.
The implementation method of the utility model the 3rd is related to a kind of side key component.Present embodiment and second embodiment substantially phase
Together, main distinction part is：In this second embodiment, the second surface laminating of FPC is reinforcement steel disc；In present embodiment
In, the second surface laminating of FPC is elastic layer.
As shown in figure 4, the side key component of present embodiment also includes elastic layer 600, the elastic layer fits in the second of FPC
Surface.The stacking order of miscellaneous part, the mode of communicating between fixed form and part and part, in second embodiment
Substantially similar, here is omitted.
In present embodiment, by the second surface laminating posterior limiting in FPC, increased FPC's to a certain extent
Intensity, and when side key component is pressed, restoring force can also be provided for the deformation of FPC so that FPC is being received and will pressed
After power passes to subsequent parts treatment, can quick-recovery soon, be easy to reception promptly and accurately to press force information next time.
Additionally, it is noted that in actual applications, can also increase between the second surface of FPC and reinforcement steel plate
If posterior limiting, while the deformation to FPC provides restoring force, further increase the intensity of FPC.
4th implementation method of the present utility model is related to a kind of terminal device.Terminal device includes printed circuit board (PCB), i.e. PCB
Any one of side key component in plate, and the implementation method of the utility model first to the 3rd, wherein, pcb board and side switch
FPC in component is connected.The position relationship and connected mode of the FPC in pcb board and side key component can be with existing side switch FPC
Position relationship and connected mode with mainboard is similar, can be will not be repeated here according to actual conditions flexible design.
Specifically, pcb board is provided with processor, and the resistance strain gage of side key component is electrically connected to processor, processor
It is the core component of terminal, is mainly used in after side key component is depressed, according to the pressing force letter that resistance strain gage is passed to
Breath realizes corresponding keypress function.
The terminal device provided in present embodiment, is transmitted by the way that resistance strain gage is deformed upon into suffered pressing force
Processed in processor on to the pcb board being attached thereto, so as to fast and accurately realize corresponding keypress function.
It is seen that, present embodiment is and any one the corresponding terminal device in the first to the 3rd implementation method
Embodiment, present embodiment can work in coordination implementation with first embodiment, second embodiment or the 3rd implementation method.First
The relevant technical details mentioned into the 3rd implementation method are still effective in the present embodiment, in order to reduce repetition, here not
Repeat again.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in the first to the 3rd implementation method.
The implementation method of the utility model the 5th is related to a kind of terminal device.Present embodiment is on the basis of the 4th implementation method
On done further improvement, specific improvements are：Signal amplifier is additionally provided with a printed circuit, and is printed for installing
The housing of circuit board and side key component.
As shown in Figure 5, Figure 6, terminal device also includes housing 800.From fig. 5, it can be seen that used in present embodiment
Side key component is the side key component of offer in the utility model second embodiment, i.e. the second surface in FPC100 is fitted with benefit
Strong steel disc 300, the intensity for increasing FPC100.
Specifically, signal amplifier (not being given in figure), the wherein input of signal amplifier are additionally provided with pcb board 700
End is connected with resistance strain gage 200, can be specifically connected by the pin drawn with sensitive grid region 201 on resistance strain gage 200,
Realize connection；The output end of signal amplifier is electrically connected to processor, by this connected mode, is pressed in side key component
When, resistance strain gage 200 is depressed to be deformed upon, and now the sensitive grid region 201 of resistance strain gage 200 can detect resistance
Change, produces electric signal, and the signal amplifier being attached thereto is passed to by FPC100, and signal amplifier receives the telecommunications
After number, treatment is amplified, exports and processed to the processor being attached thereto, so as to realize corresponding keypress function.
Housing 800, for installing pcb board 700 and side key component, and housing 800 has a side switch supporting part 801, and pastes
Close with side key component and pcb board 700, specifically, the side switch supporting part 801 has depressed area, and resistance strain gage 200 is quick
Sense grid region 201 corresponds to the depressed area, so as in the depressed power of side key component, can not only fix side key component, may be used also
Miniature deformation is produced with good cooperation resistance strain gage 200.
In present embodiment, there is the housing of side switch supporting part by providing one, side key component and pcb board are consolidated
It is fixed, the normal work of terminal inner circuit is further protected, and side switch supporting part coordinates corresponding radian, more conducively side switch
Resistance strain gage produces miniature deformation during component depressed power.
In practical application, the reinforcement steel disc between FPC100 second surfaces and PBC plates 700 can also be just fitted in
300 are substituted for elastic layer 600, and concrete structure is as shown in Figure 7.By an elasticity of being fitted between the second surface of FPC and pcb board
Layer, can increase the intensity of FPC, and when side key component is pressed, can also be provided for the deformation of FPC to a certain extent
Restoring force so that FPC after receiving and pressing force passed to subsequent parts treatment, can quick-recovery soon, be easy to promptly and accurately
Reception next time pressing force information.In addition, the intensity in order to further enhance FPC, can be respectively provided with the second surface of FPC
Elastic layer and reinforcement steel disc, then the reinforcement steel disc of the side key component bottom is fixed on pcb board.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.
Claims (10)
1. a kind of side key component, it is characterised in that be applied to terminal device；The side key component includes：Flexible PCB FPC and
Resistance strain gage；
The resistance strain gage includes sensitive grid region and the pin drawn by the sensitive grid region；
The first surface of the FPC is provided with Lu Tong areas one-to-one with the pin；
The resistance strain gage fits in the first surface of the FPC, and the pin is electrically connected to the Lu Tong areas.
2. side key component according to claim 1, it is characterised in that the side key component also includes reinforcement steel disc；
The reinforcement steel disc fits in the second surface of the FPC.
3. side key component according to claim 2, it is characterised in that the thickness range of the reinforcement steel disc in 0.15mm extremely
Between 0.2mm.
4. side key component according to claim 1, it is characterised in that the side key component also includes elastic layer；
The elastic layer fits in the second surface of the FPC.
5. side key component according to claim 1, it is characterised in that the side key component also includes metal clips；
The metal clips is in arc surfaced；
The edge of the arc surfaced is fixed on the resistance strain gage, or is fixed on the FPC；
The middle convex closure of the arc surfaced corresponds to the sensitive grid region.
6. side key component according to claim 5, it is characterised in that the side key component also includes that insulation wheat is drawn；
The insulation wheat draws the outer surface for being covered in the metal clips, and is fixed on the resistance strain gage or FPC.
7. a kind of terminal device, it is characterised in that including：Side in printed circuit board (PCB), claim 1 to 6 described in any one
Key asembly；
The printed circuit board (PCB) is provided with processor, and the printed circuit board (PCB) is connected with the FPC, wherein, the resistance-strain
Piece is electrically connected to the processor.
8. terminal device according to claim 7, it is characterised in that signal amplification is additionally provided with the printed circuit board (PCB)
Device；
The resistance strain gage is electrically connected to the input of the signal amplifier, the output end electrical connection of the signal amplifier
In the processor.
9. terminal device according to claim 7, it is characterised in that the terminal device also includes housing；The housing
With side switch supporting part；
The side key component fits in the side switch supporting part.
10. terminal device according to claim 9, it is characterised in that the side switch supporting part has depressed area, and described
The sensitive grid region of resistance strain gage corresponds to the depressed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621143350.4U CN206235420U (en) | 2016-10-20 | 2016-10-20 | Side key component and terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621143350.4U CN206235420U (en) | 2016-10-20 | 2016-10-20 | Side key component and terminal device |
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| Publication Number | Publication Date |
|---|---|
| CN206235420U true CN206235420U (en) | 2017-06-09 |
Family
ID=58982831
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621143350.4U Active CN206235420U (en) | 2016-10-20 | 2016-10-20 | Side key component and terminal device |
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| Country | Link |
|---|---|
| CN (1) | CN206235420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370328A (en) * | 2016-10-20 | 2017-02-01 | 上海摩软通讯技术有限公司 | Side key assembly and terminal device |
-
2016
- 2016-10-20 CN CN201621143350.4U patent/CN206235420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370328A (en) * | 2016-10-20 | 2017-02-01 | 上海摩软通讯技术有限公司 | Side key assembly and terminal device |
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