CN203826255U - Structure suitable for button having additional function - Google Patents
Structure suitable for button having additional function Download PDFInfo
- Publication number
- CN203826255U CN203826255U CN201420021173.7U CN201420021173U CN203826255U CN 203826255 U CN203826255 U CN 203826255U CN 201420021173 U CN201420021173 U CN 201420021173U CN 203826255 U CN203826255 U CN 203826255U
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- CN
- China
- Prior art keywords
- flexible pcb
- slide glass
- button
- pad
- physical button
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a structure suitable for a button having an additional function. The button having the additional function includes a physical button, a metal dome and a flexible circuit board which is installed between the physical button and the metal dome and is used for transmitting electrical signals. A sensor is arranged in the physical button. The flexible circuit board is connected to the physical button and the metal dome in a manner of an arrangement of an exhaust apparatus. According to the technical scheme of the button structure, internal air can be discharged through exhaust channels among the physical button, the metal dome and the flexible circuit board, thereby enabling a pressing operation of the button to be free from generating pressure and a performance of a button module to be free from being influenced. Sensitivity and Reliability of the button is 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 possess the button of 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 extra function part in addition, 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 when button has active force, just can produce certain pressure.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 avoid button sensitivity and reliability to reduce so that possess the button of additional function in long-term use.
For solving the problems of the technologies described above, the present invention relates to a kind of structure that is applicable to possess the button of 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 space between solder joint and the steam vent in physical button on pad.The loose point of the array of solder joint distribution mode can be guaranteed between pad and other parts under the firm prerequisite being connected, by the gap between different scolding tin, in bond pad surface, form a plurality of 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 a plurality of edge beads of pad side, and the middle part solder joint that is arranged on 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 formed space of sensor installation in physical button.
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 pot slide glass in the projection of 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 not 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.
As shown in Figure 1 a kind of is applicable to possess the structure of the button of additional function, 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 space between solder joint and the steam vent in physical button 6 on pad.The loose point of the array of solder joint distribution mode can be guaranteed between pad and other parts under the firm prerequisite being connected, by the gap between different scolding tin, in bond pad surface, form a plurality of 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 a plurality of edge beads 7 that are evenly distributed on pad side, and the middle part solder joint 8 that is arranged on pad middle part, 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 formed space of sensor installation in physical button.
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 pot slide glass 2 in the projection of 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 has exhaust clearance 14 with interior between contacting 10, and 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 of 3 of physical button 1 and flexible PCBs 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 formations.
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 not 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 (8)
1. a structure that is applicable to possess the button of 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; 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 pot slide glass in the projection of 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.
2. according to the structure that is applicable to possess the button of 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 a plurality of 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. according to the structure that is applicable to possess the button of additional function claimed in claim 2, it 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 space between solder joint and the steam vent in physical button on pad.
4. according to the structure that is applicable to possess the button of additional function claimed in claim 3, it is characterized in that, on described pad, pad layout comprises, be evenly distributed on a plurality of edge beads of pad side, and the middle part solder joint that is arranged on pad middle part, 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 possess the button of 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 the structure that is applicable to possess the button of additional function claimed in claim 5, 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 possess the button of 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 1,2,5 any one, possesses the structure of the button of additional function, 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 |
|---|---|---|---|
| CN201420021173.7U CN203826255U (en) | 2014-01-14 | 2014-01-14 | Structure suitable for button having additional function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420021173.7U CN203826255U (en) | 2014-01-14 | 2014-01-14 | Structure suitable for button having additional function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826255U true CN203826255U (en) | 2014-09-10 |
Family
ID=51481727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420021173.7U Expired - Fee Related CN203826255U (en) | 2014-01-14 | 2014-01-14 | Structure suitable for button having additional function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745853A (en) * | 2014-01-14 | 2014-04-23 | 无锡凯尔科技有限公司 | Structure applicable to press key with additional function |
-
2014
- 2014-01-14 CN CN201420021173.7U patent/CN203826255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745853A (en) * | 2014-01-14 | 2014-04-23 | 无锡凯尔科技有限公司 | Structure applicable to press key with additional function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |