CN1497929A - Keypad assembly of mobile phone - Google Patents
Keypad assembly of mobile phone Download PDFInfo
- Publication number
- CN1497929A CN1497929A CNA2003101028970A CN200310102897A CN1497929A CN 1497929 A CN1497929 A CN 1497929A CN A2003101028970 A CNA2003101028970 A CN A2003101028970A CN 200310102897 A CN200310102897 A CN 200310102897A CN 1497929 A CN1497929 A CN 1497929A
- Authority
- CN
- China
- Prior art keywords
- key button
- key
- mobile phone
- keypad assembly
- metal dome
- 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.)
- Granted
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
- Telephone Set Structure (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
A keypad assembly of a mobile communication terminal is provided to protrude upper sides of key button units in predetermined height on a surface of a front case, and to form projections on the upper sides of the key button units, thereby easily operating key buttons and enabling the visually impaired to easily operate the key buttons. An assembly of a keypad(132) is installed between a PCB(140) and a front case(120). The PCB(140) has many metal domes(141) on an upper side. The front case(120) forms many key holes(121). Contact projections(133) are protruded on the keypad(132) in lower direction of key button units(131) such that upper parts of the key button units(131) can be protruded in predetermined height 'h1' on a surface of the front case(120). The key button units(131) are protruded on an upper side of the keypad(132) in order to be inserted into the key holes(121).
Description
Technical field
The present invention relates to the keypad assembly of a mobile phone, in this mobile phone, key button has the front cabinet top surface of key mat outstanding from device, so that improve the operating characteristic of key button when using key button, and be marked with the letter of Braille on the top surface of key button, so that the blind person can easily use key button.
Background technology
In general, a mobile phone adopts a keypad assembly or the touch screen key input apparatus as input signal, numeral, letter etc.
Traditional keypad assembly 30 is arranged on the front cabinet shell 20 of a Telephone connector 1, and as illustrated in fig. 1 and 2, Telephone connector 1 comprises front cabinet shell 20 and back box shell 10.At keypad assembly 30, a plurality of key buttons 31 project upwards from flat pattern key mat 32, and a plurality of contact protrusion 33 is outstanding downwards from key mat 32 corresponding to a plurality of key buttons 31, thus, forms one.
In the keypad assembly 30 of above-mentioned formation, key mat 32 is arranged between a printed substrate 40 and the front cabinet shell 20, like this, the basal surface of the key button of contact protrusion 33 contacts with the top of metal dome 41 of key switch on being arranged on the printed substrate 40 that is inlaid in the Telephone connector 1, then, key button 31 is inserted in a plurality of keyholes 21 that are formed on the front cabinet shell 20.
When pushing the top surface of key button 31 with predetermined power, this power is applied to metal dome 41 by the contact protrusion 33 of correspondence, metal dome 41 be depressed and convert to be arranged on printed substrate 40 on the contact point 42 of key switch contact, thus, form a signal.
Yet, because the top surface of key button 31 is positioned on the surperficial identical height with front cabinet shell 20, so, exist the key button inconvenient problem with use.
In addition, owing to only alphabetic flag is arranged on the top surface of key button 31, so, exist the shortcoming of can not blind man using or be convenient to the blind person.
Summary of the invention
The present invention's design solves the above problems.Therefore, the keypad assembly that the purpose of this invention is to provide a mobile phone, by the height that the upper end that makes key button is scheduled to from the surface outstanding of a front cabinet shell, it can be convenient to the operation of key button, and, be convenient to the blind person and operate key button by on the top surface of key button, forming serve as a mark outstanding.
In order to achieve the above object, the invention provides the keypad assembly of a mobile phone, mobile phone comprises that one wherein forms the front cabinet shell of all keyholes, one forms the printed substrate of metal dome switch thereon, one is arranged on the key mat between front cabinet shell and the printed substrate, and keypad assembly comprises: the key button in a plurality of all keyholes that are inserted into the front cabinet shell; A plurality of contact protrusions that are used for operating the metal dome switch; And one be used for making key button and the interconnected key mat of contact protrusion, and wherein, the upper end of key button is from the predetermined height of the outer surface outstanding of front cabinet shell, and the bottom of contact protrusion is placed to and leaves the predetermined distance of metal dome switch one.
The predetermined altitude that give prominence to from the outer surface of front cabinet shell the key button upper end preferably equals the preset distance between contact protrusion and the metal dome switch.
The lower end of contact protrusion is preferably made by elastomer, wherein, forms the hemispheric sunk part that is used for holding the metal dome switch respectively.In addition, the edge of the hemispherical depression of lower end part preferably contacts with the surface of the printed substrate that is provided with the metal dome switch.
On the other hand, in order to achieve the above object, the upper end of key button is provided with projection, like this, and can be by touching the key button of distinguishing separately.
Brief description of drawings
From description of preferred embodiments in conjunction with the accompanying drawings given below, above-mentioned purpose, advantage and feature with other of the present invention will become clearer.
Fig. 1 is the stereogram that a traditional mobile phone outward appearance is shown;
Fig. 2 is the sectional view along the line A-A ' intercepting of Fig. 1;
Fig. 3 illustrates a stereogram according to mobile phone outward appearance of the present invention;
Fig. 4 is the sectional view along the line B-B ' intercepting of Fig. 3;
Fig. 5 illustrates a sectional view according to the key button of the keypad assembly of mobile phone of the present invention, and wherein, key button is depressed; And
Fig. 6 illustrates a sectional view according to the keypad assembly of mobile phone of the present invention, and wherein, keypad assembly is coated with an overturn cover.
Embodiment
Now describe structure of the present invention and all embodiment in detail with reference to Fig. 3 to 6.Fig. 3 illustrates a stereogram according to mobile phone outward appearance of the present invention, Fig. 4 is the sectional view along the line B-B ' intercepting of Fig. 3, Fig. 5 illustrates a sectional view according to the key button of the keypad assembly of mobile phone of the present invention, wherein, key button is depressed, and Fig. 6 illustrates a sectional view according to the keypad assembly of mobile phone of the present invention, and wherein, keypad assembly is coated with an overturn cover.
Shown in Fig. 3 and 4, in the keypad assembly 130 according to a mobile phone of the present invention, a key mat 132 is disposed thereon to be had the printed substrate 140 of a plurality of metal dome 141 and forms on it between front cabinet shell 120 of a plurality of keyholes 121.
In keypad assembly 130, be inserted in the keyhole 121, from the upper end of the outstanding a plurality of key buttons 131 of the top surface of key mat 132, stretch out a predetermined height " h1 " from the surface of front cabinet shell 120, and contact protrusion 133 is outstanding from key mat 132 corresponding to key button 131 downwards.
At this moment, highly " h1 " and distance " h2 " preferably equate mutually.
In addition, projection 135,135a, 135b are formed on the top surface of a plurality of key buttons 131, so that distinguish Zhu Jian with touching.
Shown in Fig. 3 and 4, when operating key button when the overturn cover 150 of opening mobile phone, predetermined height " h1 " is risen from the surface of front cabinet shell 120 in the upper end of key button 131.
Corresponding to key button 131, from the lower surface of key mat 132 edge of the hemispherical depression part of outstanding contact protrusion 133 downwards, contact with printed substrate 140, there, metal dome 141 is partly covered by hemispherical depression.
Now with reference to the operation of Fig. 3 to 6 description according to the keypad assembly of mobile phone of the present invention.
As shown in Figure 4, metal dome 141 is contained in the hemispherical depression part 134 that is formed on below the contact protrusion 133, and there, the inner surface of the top surface of metal dome 141 and hemispherical depression part 134 is spaced a distance d from one another " h2 ".
As shown in Figure 5, when a predetermined external force is applied on the key button 131, by operation key button 131 when depressing key button, the metal dome 141 that is contained in the hemispherical depression part 134 is depressed by contact protrusion 133, therefore, contact with the electrical contact 142 on the printed substrate 140, thus, form signal.
In addition, because the projection 135,135a, 135b that are formed on the correspondence on the top surface of key button 131 be not quite similar according to key button 131 separately, so, only just can distinguish separately key button 131, even the blind person also can easily operate key button with sense of touch.
In addition, as shown in Figure 6, thereby when overturn cover 150 covers on the key button 131 that covers on the mobile phone at front cabinet shell 120, because the pressure of overturn cover 150, so the top surface of key button 131 is positioned in the surperficial identical plane with front cabinet shell 120.The pressure of overturn cover 150 can make key button 131 push to down, but key button is not pushed to down from the surface of front cabinet shell.Contact protrusion 133 is reversed and covers 150 and depress and keep at a distance " h2 " between the inner surface of the top surface of metal dome 141 and hemispherical depression part 134, and thus, the surface alignment of the top surface of key button 131 and front cabinet shell 120 is in same plane.Yet under this state, contact protrusion is pressed onto metal dome 141.
Therefore, even it is outstanding that key button 131 forms from the surface of front cabinet shell, but when the overturn cover 150 of mobile phone was closed, the distance between overturn cover 150 and the front cabinet shell 120 reduced the projecting height " h1 " of key button 131, like this, the gross thickness of mobile phone does not increase.
According to above-mentioned the present invention, because the key button of keypad assembly is from the predetermined height in the surface outstanding of front cabinet shell, so, can improve the operating characteristic of key button.In addition, owing to projection is formed on the top surface of key button, so, even a blind person also can easily operate key button.
Although the present invention is described in conjunction with preferred embodiment with reference to accompanying drawing, the purpose of preferred embodiment is not restriction the present invention, but the optimal mode of the present invention of demonstrating out.The technical staff will be understood that in the present technique field, under the premise without departing from the spirit and scope of the present invention, can make various variations or remodeling to this.Therefore, the present invention is only defined by appended claims, and is interpreted as containing these variations or remodeling.
Claims (5)
1. the keypad assembly of a mobile phone, wherein, a key mat is arranged on a front cabinet shell and that forms all keyholes therein and forms thereon between the printed substrate of metal dome switch, and keypad assembly comprises:
Key button in a plurality of all keyholes that are inserted into the front cabinet shell, the upper end of key button is from the predetermined height of the outer surface outstanding of front cabinet shell;
A plurality of contact protrusions, the bottom of contact protrusion are positioned to leave the distance that metal dome switch one is scheduled to; And
One key mat, it is a pair of to form with corresponding contact protrusion that it is used for connecting corresponding key button, and like this, when pushing key button downwards, the bottom of contact protrusion is pressed onto on the metal dome switch,
Wherein, even be depressed and when being positioned in the plane identical with the outer surface of front cabinet shell, the bottom of contact protrusion does not contact with the metal dome switch yet when upper end from the outstanding key button of the outer surface of front cabinet shell.
2. the keypad assembly of mobile phone as claimed in claim 1 is characterized in that, the key button upper end equals the bottom of contact protrusion and the preset distance between the metal dome switch from the outstanding predetermined altitude of the outer surface of front cabinet shell.
3. the keypad assembly of mobile phone as claimed in claim 1 is characterized in that, the lower end of contact protrusion is made by the elastomer that is provided with the hemispherical depression part, to hold the metal dome switch respectively.
4. the keypad assembly of mobile phone as claimed in claim 3 is characterized in that, the edge of the hemispherical depression part of lower end contacts with the surface of the printed substrate that is provided with the metal dome switch.
5. as the keypad assembly of any one described mobile phone in the claim 1 to 4, it is characterized in that the upper end of key button is provided with projection, like this, can be by touching the key button of distinguishing separately.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020064317 | 2002-10-21 | ||
| KR1020020064317A KR100917187B1 (en) | 2002-10-21 | 2002-10-21 | Key pad assembly of mobile phone |
| KR10-2002-0064317 | 2002-10-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1497929A true CN1497929A (en) | 2004-05-19 |
| CN1254066C CN1254066C (en) | 2006-04-26 |
Family
ID=34256819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101028970A Expired - Fee Related CN1254066C (en) | 2002-10-21 | 2003-10-21 | Keypad assembly of mobile phone |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100917187B1 (en) |
| CN (1) | CN1254066C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202782B (en) * | 2006-12-11 | 2010-09-22 | 集嘉通讯股份有限公司 | Key structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100673853B1 (en) * | 2005-10-11 | 2007-01-25 | 삼성전자주식회사 | Rotatable keypad assembly for portable terminal |
| KR20080035185A (en) * | 2006-10-18 | 2008-04-23 | 엘지전자 주식회사 | Display device and the control method that braille-board is equiped |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5729221A (en) * | 1996-04-01 | 1998-03-17 | Motorola, Inc. | Keypad configuration |
| KR200161897Y1 (en) * | 1997-06-27 | 1999-12-01 | 윤종용 | Key button |
| KR19990009326A (en) * | 1997-07-09 | 1999-02-05 | 윤종용 | Keypads for Telephones for the Visually Impaired |
| KR200280101Y1 (en) * | 1999-06-25 | 2002-06-29 | 윤종용 | Device For Key Button In Portable Radiotelephone |
| JP2001216869A (en) * | 2000-02-04 | 2001-08-10 | Nec Saitama Ltd | Electronic equipment with key button |
-
2002
- 2002-10-21 KR KR1020020064317A patent/KR100917187B1/en not_active IP Right Cessation
-
2003
- 2003-10-21 CN CNB2003101028970A patent/CN1254066C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202782B (en) * | 2006-12-11 | 2010-09-22 | 集嘉通讯股份有限公司 | Key structure |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040034226A (en) | 2004-04-28 |
| CN1254066C (en) | 2006-04-26 |
| KR100917187B1 (en) | 2009-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060426 Termination date: 20161021 |