CN101908427B - Key structure and portable mobile terminal - Google Patents
Key structure and portable mobile terminal Download PDFInfo
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- CN101908427B CN101908427B CN 201010238982 CN201010238982A CN101908427B CN 101908427 B CN101908427 B CN 101908427B CN 201010238982 CN201010238982 CN 201010238982 CN 201010238982 A CN201010238982 A CN 201010238982A CN 101908427 B CN101908427 B CN 101908427B
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- key
- hole
- key switch
- press
- key component
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Abstract
The invention discloses a key structure and a portable mobile terminal, belonging to the technical field of machinery and solving the technical problems of the conventional key structure that the key is easy to lock when the key component is pressed and the clearance between the key component and the through hole on the enclosure is large. The key structure comprises a through hole arranged on the enclosure, a key component penetrated in the through hole and a key switch arranged in the enclosure, wherein the key component is opposite to the key switch, the clearance exits between the key component and the through hole, and the size of the outer surface of the key component gradually increases toward the key switch. The portable mobile terminal comprises the enclosure, a circuit board arranged in the enclosure and the key structure disclosed by the invention embodiment, wherein the circuit board is electrically connected with the key switch. The invention is applied to improving the property of the key structure.
Description
Technical field
The invention belongs to field of mechanical technique, the portable mobile termianl that is specifically related to a kind of press-key structure and is provided with this press-key structure.
Background technology
Along with the development of electronic technology, the portable mobile termianls such as mobile phone, palmtop PC have become means of communication the most common in people's daily life.
Press-key structure is the important component part on the electronic equipments such as portable mobile termianl, can realize man-machine interaction between user and electronic equipment by the key components such as keycap or silicagel pad on the pressing keys structure.
As shown in Figure 1, the press-key structure that arranges on existing electronic equipment, comprise through hole 2 on the casing 1 that is opened in plastic material, be arranged in the key component 3 such as keycap in through hole 2 or silicagel pad and be arranged at key switch in casing 1, wherein: key component 3 is relative with the key switch position, and has the gap between the inwall of key component 3 and through hole 2.Because casing 1 adopts the plastic parts of being made by mould usually, the depanning direction of through hole 2 is usually towards the direction away from key switch, the inwall of the through hole 2 of producing like this reduces gradually towards the direction caliber size near key switch, and the inwall of through hole 2 burr easily occurs near the port of key switch, simultaneously, the depanning direction of keycap and silicagel pad is usually towards the direction near key switch, and the outer surface of the key component 3 of producing like this reduces gradually towards the direction size near key switch.
When using electronic equipment, the first pressing keys parts 3 of user, key component 3 can against and compress key switch, after key switch is depressed and presses, can produce push button signalling and push button signalling can be exported to the master chip of electronic equipment, master chip receives after push button signalling the position at key component 3 places of can the identification user pressing, thereby produces corresponding instruction.
The inventor finds in realizing process of the present invention, and there is following problem at least in prior art:
In the press-key structure as shown in Figure 1 that arranges on existing electronic equipment, the inwall of through hole 2 reduces gradually towards the direction caliber size near key switch, so the inwall of through hole 2 is smaller near the key switch port sizes, and this port is prone to burr, gap between through hole 2 in the process of pressing keys parts 3 on the outer surface of key component 3 and casing 1 can reduce gradually, key component 3 is easily blocked by the hole wall of through hole 2 on casing 1, make key component 3 be pressed and be difficult to reduction afterwards, card key easily occurs when causing pressing keys parts 3;
Simultaneously, because the inwall of through hole 2 reduces gradually towards the direction caliber size near key switch, and the outer surface of key component 3 reduces gradually towards the direction size near key switch, more smooth and easy when making key component 3 move freely in through hole 2, gap between through hole 2 and key component 3 also can arrange larger usually, so not only easily infiltrate dust, and affect presentation quality.
Summary of the invention
The portable mobile termianl that the embodiment of the present invention provides a kind of press-key structure and has been provided with this press-key structure, card key easily occurs when having solved in existing press-key structure the pressing keys parts, and the larger technical problem of through hole gap on key component and casing.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This press-key structure comprises the through hole that is opened on casing, is arranged in the key component in described through hole and is arranged at key switch in described casing, wherein:
Described key component is relative with described key switch position, and has the gap between the inwall of described key component and described through hole, and the outer surface of described key component increases gradually towards the direction size near described key switch.
This portable mobile termianl comprises casing, is arranged at the press-key structure that circuit board in casing and the invention described above embodiment provide, and described circuit board is electrically connected to described key switch.
Compared with prior art, the arbitrary technical scheme in technique scheme provided by the present invention has following advantage:
In press-key structure provided by the present invention, there is the gap between the inwall of key component and through hole, the outer surface of key component increases gradually towards the direction size near key switch, pressing keys parts and when pressing key switch by key component, key component is in the direction moving process near key switch, gap between the outer surface of key component and the inwall of through hole can be increasing, so key component is difficult for being blocked by the hole wall of through hole on casing, the key component that is pressed also is easy to reduction;
simultaneously, during due to the pressing keys parts, gap between the outer surface of key component and the inwall of through hole can be increasing, so key component and through hole are can design comparison little away from the gap between the port of key switch, at this moment, not only be difficult for infiltrating dust between key component and through hole, and key component and through hole are when smaller away from the gap design between the port of key switch, not only be difficult for infiltrating dust between key component and through hole, feel in appearance simultaneously also better appearance, and then card key easily occurs when having solved in existing press-key structure the pressing keys parts, and the larger technical problem of through hole gap on key component and casing.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the partial schematic sectional view of existing press-key structure;
The partial schematic sectional view of the press-key structure that Fig. 2 provides for embodiments of the invention;
Fig. 3 looks schematic diagram for the master of the portable mobile termianl of the press-key structure that is provided with embodiments of the invention and provides;
Fig. 4 is that portable mobile termianl shown in Figure 3 is along the cross-sectional schematic of A-A line;
Fig. 5 is the enlarged diagram of B part in Fig. 4;
Fig. 6 is the enlarged diagram of C part in Fig. 4.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the present invention is not easy to occur card key when a kind of pressing keys parts are provided, on key component and casing, the through hole gap is less, and profile press-key structure more attractive in appearance and the portable mobile termianl that is provided with this press-key structure.
As Fig. 2, Fig. 3 and shown in Figure 4, the press-key structure that the embodiment of the present invention provides comprises the through hole 2 that is opened on casing 1, is arranged in the key component 3 in through hole 2 and is arranged at key switch 4 in casing 1, wherein:
In press-key structure provided by the present invention, there is the gap between the inwall of key component 3 and through hole 2, the outer surface of key component 3 increases gradually towards the direction size near key switch 4, pressing keys parts 3 and when pressing key switch 4 by key component 3, key component 3 is in the direction moving process near key switch 4, gap between the inwall of the outer surface of key component 3 and through hole 2 can be increasing, so key component 3 is difficult for being blocked by the hole wall of through hole 2 on casing 1, the key component 3 that is pressed also is easy to reduction;
simultaneously, during due to pressing keys parts 3, gap between the inwall of the outer surface of key component 3 and through hole 2 can be increasing, so key component 3 and through hole 2 are can design comparison little away from the gap between the port of key switch 4, at this moment, not only be difficult for infiltrating dust between key component 3 and through hole 2, and key component 3 and through hole 2 are when smaller away from the gap design between the port of key switch 4, not only be difficult for infiltrating dust between key component 3 and through hole 2, feel in appearance simultaneously also better appearance, and then card key easily occurs when having solved in existing press-key structure pressing keys parts 3, and the larger technical problem of through hole 2 gaps on key component 3 and casing 1.
The outer surface of the inwall of through hole 2 and key component 3 is parallel to each other.When the outer surface of the inwall of through hole 2 and key component 3 was parallel to each other, the Gap-Ratios between the inwall of through hole 2 and key component 3 each surfaces was more even, easily is in place when the interior installation key component 3 of through hole 2 of casing 1, and fitting operation is more convenient.
As shown in Figure 5 and Figure 6, have angle α between the axial line of the outer surface of key component 3 and through hole 2, the angle value of angle α is 2 °～9 °.When existing angle α angle value to be 2 °～9 ° between the axial line of the outer surface of key component 3 and through hole 2, not only be convenient to the manufacturing of key component 3 and through hole 2, also be convenient to key component 3 is assemblied on through hole 2, and the gauge at casing 1 through hole 2 places is larger, and the intensity at casing 1 through hole 2 places is also relatively good.In addition, when observing key component 3 from casing 1 away from the one side of key switch 4, gap between key component 3 and through hole 2 inwalls can be existed the outer surface of angle α to stop on key component 3 and between the axial line of through hole 2, so press-key structure from the appearance can be more attractive in appearance.
In the present embodiment, the angle value of angle α is preferably 6 °.Facts have proved: this moment, key component 3 was not only more easily made with through hole 2, more convenient key component 3 is assemblied on through hole 2, and the intensity at the gauge at casing 1 through hole 2 places and casing 1 through hole 2 places also can satisfy most of client's requirement.
As shown in Figure 5 and Figure 6, in the present embodiment, key component 3 is button rubber cushion 31 and/or keycap 32, wherein: button rubber cushion 31 a wherein end is relative with key switch 4 positions, and wherein the other end extends through hole 2 away from the port of key switch 4 or wherein the other end is relative with keycap 32 positions.
Owing to all can reaching the purpose of press of key switch 4 by button rubber cushion 31 or keycap 32, so in the present embodiment, key component 3 can be only both button rubber cushion 31, it can be only also keycap 32, can also comprise simultaneously button rubber cushion 31 and keycap 32, certainly, key component 3 can be also button rubber cushion 31 with keycap 32 outside other can play the parts of press of key switch 4 effects.
In the present embodiment, button rubber cushion 31 is made for silica gel material.The silica gel material absorption property is high, Heat stability is good, stable chemical nature and higher mechanical strength is arranged, and suitablely is applied to make button rubber cushion 31.Certainly, in the present embodiment, button rubber cushion 31 also can adopt other elastomeric materials.
Through hole 2 also is provided with anticreep edge 5 away from the port of key switch 4, and the caliber size at anticreep edge 5 is less than the internal diameter of through hole 2, and an end of keycap 32 is embedded in through hole 2, and its outer surface size that is embedded in the end in through hole 2 is greater than the caliber size at anticreep edge 5.Anticreep edge 5 can avoid keycap 32 to deviate from away from the port of key switch 4 from through hole 2.Certainly, in the present embodiment, anticreep edge 5 also can be arranged at through hole 2 near the port of key switch 4 or be arranged at a certain position in the middle of the inwall of through hole 2.
As Fig. 4, Fig. 5 and shown in Figure 6, be provided with by key label on keycap 32, be provided with the directionkeys mark in the present embodiment on keycap 32.32 pairs of button rubber cushions 31 of keycap can play a protective role.When pressing keycap 32, keycap 32 can move towards the direction near key switch 4, and then, keycap 32 can drive button rubber cushion 31, and by button rubber cushion 31 press of key switch 4, thereby complete button operation.In the process that keycap 32 is pressed, the gap between keycap 32 and through hole 2 inwalls can increase gradually, so through hole 2 can not block keycap 32 near the port of key switch 4, the problem of card key can not occur.
In addition, when observing keycap 32 from casing 1 away from the one side of key switch 4, gap between keycap 32 and through hole 2 inwalls can be existed the outer surface of angle α to stop on keycap 32 and between the axial line of through hole 2, so press-key structure from the appearance can be more attractive in appearance.
As Fig. 4, Fig. 5 and shown in Figure 6, offer at least two through holes 2 on casing 1, on body 33, second portion 332 is arranged in one of them through hole 2, and and there is the gap between the inwall of through hole 2, on body 33, the outer surface of second portion 332 increases gradually towards the direction size near key switch 4, and the outer surface of the inwall of through hole 2 and body 33 is parallel to each other.
During second portion 332, on body 33, second portion 332 can move towards the direction near key switch 4 on pressing body 33, and drive stud bump 34 press of key switch 4 relative with second portion 332 positions, thereby completes button operation.In the process that on body 33, second portion 332 is pressed, gap on body 33 between second portion 332 and through hole 2 inwalls can increase gradually, so through hole 2 can not block second portion 332 on body 33 near the port of key switch 4, and the problem of card key can not occur.
In addition, with keycap 32 in like manner, when observing on body 33 second portion 332 away from the one side of key switch 4 from casing 1, gap on body 33 between second portion 332 and through hole 2 inwalls can be existed the outer surface of angle α to stop on the second portion 332 of body 33 and between the axial line of through hole 2, so press-key structure from the appearance can be more attractive in appearance.
Key switch 4 is the dome sheet.The dome sheet is a kind of PET thin slice that comprises metal clips (or claim: pot young sheet), is used on the wiring boards such as PCB or FPC and uses as switch, and the dome sheet can play the effect of sense of touch type switch.Certainly, in the present embodiment, key switch 4 also can use other sense of touch type switches outside the dome sheet.
The portable mobile termianl that the embodiment of the present invention provides comprises casing 1 as shown in Figure 4, is arranged at the press-key structure that circuit board 6 in casing 1 and the invention described above embodiment provide, and circuit board 6 is electrically connected to key switch 4.
The identical technical characterictic of press-key structure that provides with the invention described above embodiment is provided due to the embodiment of the present invention, so also can produce identical technique effect, solves identical technical problem.
In the present embodiment, portable mobile termianl is preferably mobile phone or palmtop PC, and certainly, the press-key structure that the embodiment of the present invention provides also can be applied on other electronic equipments outside mobile phone, palmtop PC.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. press-key structure is characterized in that: comprises the through hole that is opened on casing, is arranged in the key component in described through hole and is arranged at key switch in described casing, wherein:
Described key component is relative with described key switch position, and has the gap between the inwall of described key component and described through hole, and the outer surface of described key component increases gradually towards the direction size near described key switch;
The inwall of described through hole and the outer surface of described key component are parallel to each other;
Have angle between the outer surface of described key component and the axial line of described through hole, the angle value of described angle is 2 °～9 °.
2. press-key structure according to claim 1, it is characterized in that: the angle value of described angle is 6 °.
3. press-key structure according to claim 1, it is characterized in that: described key component is button rubber cushion and/or keycap, wherein:
A described button rubber cushion wherein end is relative with described key switch position, and wherein the other end extends described through hole away from the port of described key switch or wherein the other end is relative with described keycap position.
4. press-key structure according to claim 3, it is characterized in that: described through hole also is provided with the anticreep edge away from the port of described key switch, the caliber size at described anticreep edge is less than the internal diameter of described through hole, one end of described keycap is embedded in described through hole, and it is embedded in the outer surface size of the end in described through hole greater than the caliber size at described anticreep edge.
5. press-key structure according to claim 4, it is characterized in that: described button rubber cushion comprises the body that is cushion and the stud bump that at least one is connected with described body, wherein:
Each described stud bump is relative with a described key switch position respectively away from an end of described body;
Described body comprises first and second portion away from a side of described key switch, and described first is relative with at least one described keycap position, and the outer surface of described keycap increases gradually towards the direction size near described key switch.
6. press-key structure according to claim 5, it is characterized in that: offer at least two described through holes on described casing, on described body, second portion is arranged in one of them described through hole, and and there is the gap between the inwall of described through hole, on described body, the outer surface of second portion increases gradually towards the direction size near described key switch, and the inwall of described through hole and the outer surface of described body are parallel to each other.
7. press-key structure according to claim 1, it is characterized in that: described key switch is the dome sheet.
8. portable mobile termianl is characterized in that: comprise casing, be arranged at circuit board and the arbitrary described press-key structure of claim 1 to 7 in casing, described circuit board is electrically connected to described key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010238982 CN101908427B (en) | 2010-07-28 | 2010-07-28 | Key structure and portable mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010238982 CN101908427B (en) | 2010-07-28 | 2010-07-28 | Key structure and portable mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101908427A CN101908427A (en) | 2010-12-08 |
| CN101908427B true CN101908427B (en) | 2013-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010238982 Expired - Fee Related CN101908427B (en) | 2010-07-28 | 2010-07-28 | Key structure and portable mobile terminal |
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| Country | Link |
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| CN (1) | CN101908427B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977846B (en) * | 2015-08-06 | 2017-10-24 | 惠州Tcl移动通信有限公司 | A kind of control method of watchcase component, intelligent watch and intelligent watch |
| CN106790890B (en) * | 2016-12-01 | 2019-09-24 | 惠州Tcl移动通信有限公司 | A kind of side key structure of cell phone and its mobile phone |
| CN110612000A (en) * | 2018-06-15 | 2019-12-24 | Oppo广东移动通信有限公司 | Casing, casing assembly and electronic device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057361A (en) * | 1991-07-25 | 1991-12-25 | 北京邮电学院鸿雁电器厂 | The technical measures of unit switch and unit switch |
| EP0565959B1 (en) * | 1992-04-14 | 1996-08-28 | MOTOROLA GmbH | A keypad |
| CN2609152Y (en) * | 2003-02-11 | 2004-03-31 | 倚天资讯股份有限公司 | Improved structure of gap between multi direction functional key and skrface plate hole |
| JP2005244376A (en) * | 2004-02-25 | 2005-09-08 | Nec Access Technica Ltd | Key button structure and mobile communication terminal employing it |
| CN1797631A (en) * | 2004-12-28 | 2006-07-05 | 兄弟工业株式会社 | Push-button switch |
| JP2006352414A (en) * | 2005-06-15 | 2006-12-28 | Sharp Corp | Portable communication equipment |
| CN201387830Y (en) * | 2009-02-27 | 2010-01-20 | 青岛海信移动通信技术股份有限公司 | Antistatic key structure and portable mobile terminal |
| WO2010049015A1 (en) * | 2008-10-30 | 2010-05-06 | Sony Ericsson Mobile Communications Ab | Dome sheet and key pad |
-
2010
- 2010-07-28 CN CN 201010238982 patent/CN101908427B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057361A (en) * | 1991-07-25 | 1991-12-25 | 北京邮电学院鸿雁电器厂 | The technical measures of unit switch and unit switch |
| EP0565959B1 (en) * | 1992-04-14 | 1996-08-28 | MOTOROLA GmbH | A keypad |
| CN2609152Y (en) * | 2003-02-11 | 2004-03-31 | 倚天资讯股份有限公司 | Improved structure of gap between multi direction functional key and skrface plate hole |
| JP2005244376A (en) * | 2004-02-25 | 2005-09-08 | Nec Access Technica Ltd | Key button structure and mobile communication terminal employing it |
| CN1797631A (en) * | 2004-12-28 | 2006-07-05 | 兄弟工业株式会社 | Push-button switch |
| JP2006352414A (en) * | 2005-06-15 | 2006-12-28 | Sharp Corp | Portable communication equipment |
| WO2010049015A1 (en) * | 2008-10-30 | 2010-05-06 | Sony Ericsson Mobile Communications Ab | Dome sheet and key pad |
| CN201387830Y (en) * | 2009-02-27 | 2010-01-20 | 青岛海信移动通信技术股份有限公司 | Antistatic key structure and portable mobile terminal |
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| CN101908427A (en) | 2010-12-08 |
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Granted publication date: 20130515 Termination date: 20190728 |