CN103745853A - Structure applicable to press key with additional function - Google Patents
Structure applicable to press key with additional function Download PDFInfo
- Publication number
- CN103745853A CN103745853A CN201410015698.4A CN201410015698A CN103745853A CN 103745853 A CN103745853 A CN 103745853A CN 201410015698 A CN201410015698 A CN 201410015698A CN 103745853 A CN103745853 A CN 103745853A
- Authority
- CN
- China
- Prior art keywords
- flexible pcb
- slide glass
- button
- pad
- physical button
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a structure applicable to a press key with an additional function. The press key with the additional function comprises a physical press key, a pot carrying sheet and a flexible circuit board, wherein the flexible circuit board is arranged between the physical press key and the pot carrying sheet and is used for transmitting electric signals, a sensor is arranged inside the physical pres key, and the flexible circuit board, the physical press key and the pot carrying sheet adopt a connecting mode adopting an exhaust device. The press key structure adopting the technical scheme has the advantages that inside air is exhausted through exhaust passages among the physical press key, the pot carrying sheet and the flexible circuit board, so the pressure intensity cannot be generated through the pressing action of the press key, no influence can be caused on the performance of a press key module, and the flexibility and the reliability are effectively ensured.
Description
Technical field
The present invention relates to a kind of structure of electronic unit, especially a kind of structure that is applicable to the button that possesses additional function.
Background technology
Along with smart mobile phone development, touch-screen substitutes physical button gradually, so that cell phone has larger display size in limited size, and the several buttons that only remain may be also virtual optical touch keys.But, the physical button of entity can not be substituted completely, because it has the physics touch-control true feeling that the institutes such as optical touch do not have, can also add therein in addition extra function part, to achieve specific additional function, comprise optical finger navigation, biological fingerprint identification etc.
Common key-press module is conventionally superposeed and forms successively by General Physics button, flexible PCB, three parts of pot slide glass, in use, by pressing physical button, cause a pot slide glass generation deformation, thereby control switch and closed signal, its structure is comparatively simple, so the sensitivity of module, stability can be guaranteed.And for band additional function key-press module, because of when realizing this additional function, must increase the senser element of corresponding function.But owing to adding senser element at General Physics key inside, making its inner space is a kind of closing form, and the air of described inside is difficult to flee from, and just can produce certain pressure when button has active force.The reaction of the pressure that this pressure produces is on flexible PCB and pot slide glass, long-time so operation can destroy pot slide glass and be connected with flexible PCB, reduce the globality of pot slide glass and flexible PCB, finally caused the keypress function sensitivity of button module, reliability to reduce.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structure of button, and it can make the button that possesses additional function in long-term use, avoid button sensitivity and reliability to reduce.
For solving the problems of the technologies described above, the present invention relates to a kind of structure that is applicable to the button that possesses additional function, the described button that possesses additional function comprises physical button, pot slide glass, and it is middle for transmitting the flexible PCB of the signal of telecommunication with pot slide glass to be arranged on physical button.Described physical button inside is provided with transducer, between described flexible PCB and physical button, pot slide glass, adopts the connected mode that is provided with exhaust apparatus.
As a modification of the present invention, between described physical button and flexible PCB, be provided with the corresponding pad of shape and size and flexible PCB, and be arranged on the solder joint on pad; Described solder joint consists of scolding tin, and physical button, by solder joint and pad, makes it be connected with flexible PCB.Adopt above-mentioned design, can effectively guarantee the globality of physical button and flexible PCB.
As a modification of the present invention, described pad is when carrying out surface mount, and the layout of the solder joint consisting of solder(ing) paste adopts the loose point of array between solder joint with certain interval to distribute; Described physical button is at least provided with a steam vent that is extended to shell by its inside; Exhaust apparatus between described flexible PCB and physical button consists of the steam vent in space and the physical button between solder joint on pad.Under the prerequisite that the loose point of the array distribution mode of solder joint can be guaranteed to be firmly connected between pad and other parts, by the gap between different scolding tin, in bond pad surface, form multiple exhaust passages, and with physical button on steam vent acting in conjunction, while guaranteeing physical button work, its inner air can flow out to outside button.
As a modification of the present invention, on described pad, pad layout comprises, be evenly distributed on multiple edge beads of pad side, and be arranged on the middle part solder joint at pad middle part, the inside of solder joint projection on pad in the middle part of described transducer is positioned at the projection of pot slide glass on pad; Described steam vent extends to the installation site of transducer in physical button inside.Because the efficiency of the pressure transmission between physical button and pot slide glass directly affects the sensitivity of button, so on the pad between physical button and flexible PCB, effectively guarantee the transmission of pressure by covering sensor and the middle part solder joint of pot slide glass; The extension degree of depth of steam vent can be guaranteed it and can be connected with the space that sensor installation in physical button forms.
As a modification of the present invention, described pot slide glass is connected with flexible PCB by colloid material, and pot slide glass can be kept and being connected of flexible PCB in deformation process.
As another kind of improvement of the present invention, described colloid material includes one side colloidality face, and colloid material covers the back side of pot slide glass and flexible PCB joint face, colloidality face and pot slide glass, and flexible PCB comes in contact.Above-mentioned design can be guaranteed the connective stability between pot slide glass and flexible PCB, thereby pot slide glass can be separated from each other with flexible PCB.
As another kind of improvement of the present invention, the shape of described colloid material and size are all identical with flexible PCB.
As another kind of improvement of the present invention, between described flexible PCB and pot slide glass, it is provided with the Metal Contact face corresponding with pot slide glass position with pot slide glass opposite face, and described Metal Contact face comprises interior contact-making surface and outer contacting face; Described interior contact-making surface consists of at the identical sheet metal of the projection of flexible PCB with pot slide glass shape, it is positioned at the projection of pot slide glass at flexible PCB, described outer contacting face consists of at the identical endless metal of the projection of shape of flexible PCB with pot slide glass outer rim shape, it comprises outward flange and inward flange, wherein, outward flange is positioned at pot slide glass outside the projection of flexible PCB, and inward flange is positioned at pot slide glass within the projection of flexible PCB; Between described outer contacting face and interior contact, have exhaust clearance, the side of outer contacting face is provided with the exhaust passage that is extended to exhaust clearance by outer contacting face outside.
Due to the material behavior of colloid material, pot slide glass is during at work to lower convexity, and pot slide glass edge to be can produce a confined space with certain air between interior part and flexible PCB, and its air pressure inside reduces and strengthens with this spatial volume.。The pressure that air in this confined space produces also can produce reaction to pot slide glass, destroys the connectivity of colloid material to flexible PCB and pot slide glass, thereby destroys the sensitivity of key-press module.Adopt above-mentioned design, button in use, when pot slide glass is squeezed, the air-flow producing during pot slide glass generation deformation can flow from exhaust clearance, and discharge from exhaust passage, thereby interact with the air-vent being arranged in exhaust clearance, make pot slide glass keep being closely connected with colloid material all the time.
As another kind of improvement of the present invention, in described exhaust clearance, be provided with at least two air-vents, described air-vent extends in the pad between physical button and flexible PCB, with the contact-making surface of physical button; Described flexible PCB and the exhaust apparatus of pot between slide glass are by exhaust clearance and the exhaust passage that is communicated with thereof, and air-vent forms.
As a modification of the present invention, the perspective plane area of described colloid material on flexible PCB is greater than the perspective plane area of pot slide glass on flexible PCB.Because pot slide glass can cause along the power of face direction the colloid material being attached thereto in deformation process, adopt above-mentioned design can guarantee to keep between pot slide glass and flexible PCB Best link state.
Adopt the button of technique scheme, physical button inside is because of the air in the space that senser element is set produces, in the deformation process of pot slide glass, by the escape hole of physical button shell, and in above-mentioned design in the corresponding pad of physical button the gap between solder joint be expelled to physical button outside, thereby can not form pressure, key-press module is impacted; Air between pot slide glass and flexible PCB also can be with the deformation of pot slide glass from exhaust passage simultaneously, and air-vent is discharged, thereby make physical button, flexible PCB and pot slide glass all not contain each other residual air, and then guarantee that the key-press module that possesses additional function is not affected by internal pressure, has effectively improved sensitivity and reliability.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the scolding tin distribution schematic diagram that in the present invention, pad is connected a side with physical button;
Fig. 3 is flexible PCB and pot slide glass connection diagram in the present invention;
Description of reference numerals:
1-physical button, 2-pot slide glass, 3-flexible PCB, 4-transducer, 5-pad, 6-steam vent, 7-edge bead, 8-middle part solder joint, 9-colloid material, 10-interior contact-making surface, 11-outer contacting face, 12-outward flange, 13-inward flange, 14-exhaust clearance, 15-exhaust passage, 16-air-vent.
Embodiment
Below in conjunction with accompanying drawing and embodiment, further illustrate the present invention, should understand following embodiment and only for the present invention is described, is not used in and limits the scope of the invention.
A kind of structure that is applicable to the button that possesses additional function as shown in Figure 1, described in possess additional function button comprise physical button 1, pot slide glass 2, and be arranged in the middle of physical button 1 and pot slide glass 2 for transmitting the flexible PCB 3 of the signal of telecommunication.Described physical button 1, pot slide glass 2 all overlap mutually with the axis of flexible PCB 3.Described physical button 1 inside is provided with transducer 4, between described flexible PCB 3 and physical button 1, pot slide glass 2, adopts the connected mode that is provided with exhaust apparatus.
As a modification of the present invention, between described physical button 1 and flexible PCB 3, be provided with the corresponding pad 5 of shape and size and flexible PCB 3, and be arranged on the solder joint on pad 5; Described solder joint consists of scolding tin, and physical button 1, by solder joint and pad 5, makes it be connected with flexible PCB.Adopt above-mentioned design, can effectively guarantee the globality of physical button and flexible PCB.
As a modification of the present invention, described pad 5 is when carrying out surface mount, and the layout of the solder joint consisting of solder(ing) paste adopts the loose point of array between solder joint with certain interval to distribute; Described physical button 1 is at least provided with a steam vent 6 that is extended to shell by its inside; Exhaust apparatus between described flexible PCB 3 and physical button 1 consists of the steam vent 6 in space and the physical button between solder joint on pad.Under the prerequisite that the loose point of the array distribution mode of solder joint can be guaranteed to be firmly connected between pad and other parts, by the gap between different scolding tin, in bond pad surface, form multiple exhaust passages, and with physical button on steam vent acting in conjunction, while guaranteeing physical button work, its inner air can flow out to outside button.
As a modification of the present invention, on described pad 5, pad layout as shown in Figure 2, it comprises the multiple edge beads 7 that are evenly distributed on pad side, and be arranged on the middle part solder joint 8 in the middle part of pad, the inside of solder joint 8 projection on pad 5 in the middle part of described transducer 4 is positioned at the projection of pot slide glass 2 on pad 5; Described steam vent 6 extends to the installation site of transducer 4 in physical button 1 inside.Because the efficiency of the pressure transmission between physical button and pot slide glass directly affects the sensitivity of button, so on the pad between physical button and flexible PCB, effectively guarantee the transmission of pressure by covering sensor and the middle part solder joint of pot slide glass; The extension degree of depth of steam vent can be guaranteed it and can be connected with the space that sensor installation in physical button forms.
As a modification of the present invention, described pot slide glass 2 is connected with flexible PCB 3 by colloid material 9, and pot slide glass can be kept and being connected of flexible PCB in deformation process.
As another kind of improvement of the present invention, described colloid material 9 includes one side colloidality face, and colloid material 9 covers the back side of pot slide glass 2 and flexible PCB 3 joint faces, described colloidality face and pot slide glass 2, and flexible PCB 3 comes in contact.Above-mentioned design can be guaranteed the connective stability between pot slide glass and flexible PCB, thereby pot slide glass can be separated from each other with flexible PCB.
As another kind of improvement of the present invention, the shape of described colloid material 9 and size are all identical with flexible PCB.
As another kind of improvement of the present invention, between described flexible PCB 3 and pot slide glass 2, it is provided with the Metal Contact face corresponding with pot slide glass 2 positions with pot slide glass 2 opposite faces, its as shown in Figure 3, described Metal Contact face comprises interior contact-making surface 10 and outer contacting face 11; Described interior contact-making surface 10 consists of at the identical sheet metal of the projection of flexible PCB 3 with pot slide glass 2 shape, it is positioned at the projection of pot slide glass 2 at flexible PCB 3, described outer contacting face 11 consists of at the identical endless metal of the projection of shape of flexible PCB 3 with pot slide glass 2 outer rim shape, it comprises outward flange 12 and inward flange 13, wherein, outward flange 12 is positioned at pot slide glass 2 outside the projection of flexible PCB 3, and inward flange 13 is positioned at pot slide glass 2 within the projection of flexible PCB 3; Described outer contacting face 11 and interiorly have exhaust clearance 14 between contacting 10, the side of outer contacting face 11 is provided with the exhaust passage 15 that is extended to exhaust clearance 14 by outer contacting face 11 outsides.
Due to the material behavior of colloid material, pot slide glass is during at work to lower convexity, and pot slide glass edge to be can produce a confined space with certain air between interior part and flexible PCB, and its air pressure inside reduces and strengthens with this spatial volume.The pressure that air in this confined space produces also can produce reaction to pot slide glass, destroys the connectivity of colloid material to flexible PCB and pot slide glass, thereby destroys the sensitivity of key-press module.Adopt above-mentioned design, button in use, when pot slide glass is squeezed, the air-flow producing during pot slide glass generation deformation can flow from exhaust clearance, and discharge from exhaust passage, thereby interact with the air-vent being arranged in exhaust clearance, make pot slide glass keep being closely connected with colloid material all the time.
As another kind of improvement of the present invention, in described exhaust clearance 14, be provided with two air-vents 16, described air-vent 16 extends in the pad 5 between physical button 1 and flexible PCB 3 on the contact-making surface with physical button 1; Described flexible PCB 3 and the exhaust apparatus of pot between slide glass 2 are by exhaust clearance 14 and the exhaust passage 15 that is communicated with thereof, and air-vent 16 forms.
As a modification of the present invention, the perspective plane area of described colloid material 9 on flexible PCB 3 is greater than the perspective plane area of pot slide glass 2 on flexible PCB 3.Because pot slide glass can cause along the power of face direction the colloid material being attached thereto in deformation process, adopt above-mentioned design can guarantee to keep between pot slide glass and flexible PCB Best link state.
Adopt the button of technique scheme, physical button inside is because of the air in the space that senser element is set produces, in the deformation process of pot slide glass, by the escape hole of physical button shell, and in above-mentioned design in the corresponding pad of physical button the gap between solder joint be expelled to physical button outside, thereby can not form pressure, key-press module is impacted; Air between pot slide glass and flexible PCB also can be with the deformation of pot slide glass from exhaust passage simultaneously, and air-vent is discharged, thereby make physical button, flexible PCB and pot slide glass all not contain each other residual air, and then guarantee that the key-press module that possesses additional function is not affected by internal pressure, has effectively improved sensitivity and reliability.
Claims (9)
1. one kind is applicable to the structure of the button that possesses additional function, the described button that possesses additional function comprises physical button, pot slide glass, and it is middle for transmitting the flexible PCB of the signal of telecommunication with pot slide glass to be arranged on physical button, it is characterized in that, described physical button inside is provided with transducer, between described flexible PCB and physical button, pot slide glass, adopts the connected mode that is provided with exhaust apparatus.
2. according to the structure that is applicable to the button that possesses additional function claimed in claim 1, it is characterized in that, between described physical button and flexible PCB, be provided with the corresponding pad of shape and size and flexible PCB, and be arranged on the multiple solder joints on pad; Described solder joint consists of scolding tin, and physical button is connected with flexible PCB by solder joint and pad.
3. the structure that possesses the button of additional function according to being applicable to described in claim 1 or 2, is characterized in that, the pad layout in described pad adopts the loose point of array between solder joint with certain interval to distribute; Described physical button is at least provided with a steam vent that is extended to shell by its inside; Exhaust apparatus between described flexible PCB and physical button consists of the steam vent in space and the physical button between solder joint on pad.
4. according to the structure that is applicable to the button that possesses additional function claimed in claim 3, it is characterized in that, on described pad, pad layout comprises, be evenly distributed on multiple edge beads of pad side, and be arranged on the middle part solder joint in the middle part of pad, the inside of solder joint projection on pad in the middle part of described transducer is all positioned at the projection of pot slide glass on pad; Described steam vent extends to the installation site of transducer in physical button inside.
5. according to the structure that is applicable to the button that possesses additional function claimed in claim 1, it is characterized in that, described pot slide glass is pasted and is connected with flexible PCB by colloid material.
6. according to being applicable to described in claim 1 or 5, possesses the structure of the button of additional function, it is characterized in that, described colloid material includes one side colloidality face, and colloid material covers the back side of pot slide glass and flexible PCB joint face, colloidality face and pot slide glass, and flexible PCB comes in contact.
7. according to the structure that is applicable to the button that possesses additional function claimed in claim 6, it is characterized in that, the shape of described colloid material and size are all identical with flexible PCB.
8. according to being applicable to described in claim 1 or 5, possesses the structure of the button of additional function, it is characterized in that, between described flexible PCB and pot slide glass, it is provided with the Metal Contact face corresponding with pot slide glass position with pot slide glass opposite face, and described Metal Contact face comprises interior contact-making surface and outer contacting face; Described interior contact-making surface consists of at the identical sheet metal of the projection of flexible PCB with pot slide glass shape, it is positioned at the projection of pot slide glass at flexible PCB, described outer contacting face consists of at the identical endless metal of the projection of shape of flexible PCB with pot slide glass outer rim shape, it comprises outward flange and inward flange, wherein, outward flange is positioned at pot slide glass outside the projection of flexible PCB, and inward flange is positioned at pot slide glass within the projection of flexible PCB; Between described outer contacting face and interior contact, have exhaust clearance, the side of outer contacting face is provided with the exhaust passage that is extended to exhaust clearance by outer contacting face outside.
9. according to the structure that is applicable to the button that possesses additional function described in claim 1,2,5 any one, it is characterized in that, in described exhaust clearance, be provided with at least two air-vents, described air-vent extends in the pad between physical button and flexible PCB, with the contact-making surface of physical button; Described flexible PCB and the exhaust apparatus of pot between slide glass, by exhaust clearance and the exhaust passage that is communicated with thereof, form with air-vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015698.4A CN103745853A (en) | 2014-01-14 | 2014-01-14 | Structure applicable to press key with additional function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410015698.4A CN103745853A (en) | 2014-01-14 | 2014-01-14 | Structure applicable to press key with additional function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103745853A true CN103745853A (en) | 2014-04-23 |
Family
ID=50502866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410015698.4A Pending CN103745853A (en) | 2014-01-14 | 2014-01-14 | Structure applicable to press key with additional function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103745853A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045956A (en) * | 2017-06-27 | 2017-08-15 | 青岛海信移动通信技术股份有限公司 | A kind of air exchange button and terminal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001067983A (en) * | 1999-07-21 | 2001-03-16 | Samsung Electro Mech Co Ltd | Key pad assembly for mobile radio communication equipment |
| US20120103776A1 (en) * | 2010-10-29 | 2012-05-03 | Research In Motion Limited | Method and apparatus for controlling a multi-mode keyboard |
| CN202839407U (en) * | 2012-08-24 | 2013-03-27 | 上海广电电子科技有限公司 | Button structure and button pad structure thereof |
| CN202841276U (en) * | 2012-10-15 | 2013-03-27 | 上海华勤通讯技术有限公司 | Modularized cell phone side key and cell phone comprising the same |
| CN103311031A (en) * | 2013-06-20 | 2013-09-18 | 上海华勤通讯技术有限公司 | Key and mobile terminal therewith |
| CN203826255U (en) * | 2014-01-14 | 2014-09-10 | 无锡凯尔科技有限公司 | Structure suitable for button having additional function |
-
2014
- 2014-01-14 CN CN201410015698.4A patent/CN103745853A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001067983A (en) * | 1999-07-21 | 2001-03-16 | Samsung Electro Mech Co Ltd | Key pad assembly for mobile radio communication equipment |
| US20120103776A1 (en) * | 2010-10-29 | 2012-05-03 | Research In Motion Limited | Method and apparatus for controlling a multi-mode keyboard |
| CN202839407U (en) * | 2012-08-24 | 2013-03-27 | 上海广电电子科技有限公司 | Button structure and button pad structure thereof |
| CN202841276U (en) * | 2012-10-15 | 2013-03-27 | 上海华勤通讯技术有限公司 | Modularized cell phone side key and cell phone comprising the same |
| CN103311031A (en) * | 2013-06-20 | 2013-09-18 | 上海华勤通讯技术有限公司 | Key and mobile terminal therewith |
| CN203826255U (en) * | 2014-01-14 | 2014-09-10 | 无锡凯尔科技有限公司 | Structure suitable for button having additional function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045956A (en) * | 2017-06-27 | 2017-08-15 | 青岛海信移动通信技术股份有限公司 | A kind of air exchange button and terminal |
| CN107045956B (en) * | 2017-06-27 | 2019-09-20 | 青岛海信移动通信技术股份有限公司 | A kind of air exchange key and terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9793070B2 (en) | Dome switch stack and method for making the same | |
| CN103984452B (en) | Contact panel assembly and electronic installation | |
| WO2016053907A1 (en) | Dome switch and switch housing for keyboard assembly | |
| US8754342B2 (en) | Top push switch | |
| JPWO2014175446A1 (en) | Push switch and switch module | |
| US9793071B2 (en) | Dome switch stack and method for making the same | |
| CN109413246B (en) | Shell assembly and electronic equipment | |
| CN105681503A (en) | Waterproof side key structure and electronic equipment comprising same | |
| WO2015192473A1 (en) | Waterproof apparatus for terminal side-key, and terminal | |
| CN104298384B (en) | Touch sensitive surface module and electronic installation | |
| US9786449B2 (en) | Dome switch stack and method for making the same | |
| TWI532275B (en) | Connector | |
| TW201423808A (en) | Button assembly and handheld electronic device | |
| CN203826255U (en) | Structure suitable for button having additional function | |
| US20160334913A1 (en) | Touch Sensing Device | |
| CN103745853A (en) | Structure applicable to press key with additional function | |
| JP6529561B2 (en) | Keyboard structure | |
| CN107851177A (en) | Fingerprint module and electronic equipment | |
| CN202258929U (en) | Spacer structure for metal thin film switch as well as metal thin film switch using same | |
| JPWO2008044764A1 (en) | Operation key structure | |
| CN107566574A (en) | Fingerprint module, battery cover component and mobile terminal with keypress function | |
| US20200335288A1 (en) | Waterproof button module and electronic device | |
| CN104007847A (en) | External input device, input method and control chip | |
| US20180004335A1 (en) | Touch Sensing Device | |
| CN105514574B (en) | Portable electronic device and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140423 |