CN1901562A - Key region assembly for portable communication terminal device and manufacturing method thereof - Google Patents
Key region assembly for portable communication terminal device and manufacturing method thereof Download PDFInfo
- Publication number
- CN1901562A CN1901562A CNA200610090669XA CN200610090669A CN1901562A CN 1901562 A CN1901562 A CN 1901562A CN A200610090669X A CNA200610090669X A CN A200610090669XA CN 200610090669 A CN200610090669 A CN 200610090669A CN 1901562 A CN1901562 A CN 1901562A
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- CN
- China
- Prior art keywords
- terminal
- pad
- electroluminescence
- circuit board
- printed circuit
- 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
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- 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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0225—Rotatable telephones, i.e. the body parts pivoting to an open position around an axis perpendicular to the plane they define in closed position
- H04M1/0231—Including a rotatable keypad body part
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
Abstract
The present invention relates the field of the technology of a key region assembly for a portable communication terminal device. The key region assembly is characterized in that the assembly includes: a printed circuit board with a fixed contact terminal and a mainboard earth terminal; an electroluminescent mat installed on the printed circuit board, and a switch terminal and an earth terminal that electrifies mutually are printed on the front and back surface of the electroluminescent mat; a metal elastic sheet is installed on the top of said electroluminescent mat, the edge of which is next to the mainboard earth termina; a key hat having a actuator underneath that can press the metal elastic sheet, and the switch terminal, the earth terminal of the electroluminescent mat and the fixed contact terminal and the mainboard earth terminal of the printed circuit board are corresponded one to one. When the key hat is pressed, the actuator connects the switch terminal with the fixed contact terminal through the metal elastic sheet, luminizing the electroluminescent mat. The present invention has the advantages of small volume, high knocking frequency, and good knocking feel.
Description
Technical field
The present invention relates to be applied to portable communication terminal device (so-called mobile phone or intercom, hereinafter referred to as " mobile phone ") key region assembly, in more detail, relate to key region assembly and the manufacture method thereof that a kind of metal clips is installed on electroluminescence pad (EL sheet) top, can realizes that product is compact, knock rate height, good knocking sense.
Background technology
Generally speaking, keypad applications is in communication equipments such as mobile phones, and as signal and the required switching device of execution additional functions take place, this switching device has the key that is printing numeral or literal etc., key inserts in the hole that has on the communication equipment front casing, and its part protrudes from the front casing outside.
In the key of this formation keypad, form the printing surface as above show numeral or literal etc., confirm the numeral that shows on this printing surface or literal etc. for the user, press the key that needs.
And, in order also can to confirm above-mentioned printing surface, the light source that is made of light-emitting component is installed in the outside, bottom surface of key at night, if from light source irradiation light, utilize the back lighting effect, make numeral that the user prints on can identification key or literal etc.
The general main use LED of above-mentioned light source (Light-Emitting Diode) lamp, corresponding with the height of LED lamp in this case, the keypad enlarged in thickness is reducing there is limitation aspect the keypad thickness.
In addition, because a little less than the brightness of LED lamp, light can not shine wider, the shortcoming of existence is the peripheral part at a light irradiation LED lamp place.
Therefore, recently as a kind of method that is used to reduce keypad thickness, made as the electroluminescence pad (Electro-Luminescence sheet) of sheet (sheet) shape of planar luminous body keypad as the keypad light source.
The EL keypad is different from the keypad that original light-emitting diode (LED) light source of high light is sent in employing on one point, and the light source component of this product adopts the electroluminescence pad that sends the light of brightness (briliancy) homogeneous on all faces.Its advantage is, to compare identity higher with existing product, particularly compares with the LED keypad, more favourable at design aspect, helps the exploitation of the model of compactization such as ultrathin mobile phone.
Fig. 1 is the sectional view of the general electroluminescence mode metal clips keypad introduced in Republic of Korea's patent registration No. 10-0477080 number, and this metal clips keypad is made of keycap 210, electro luminescent metal shell fragment pad 220 and printed circuit board (PCB) 230.Wherein, electro luminescent metal shell fragment pad 220 is made of electroluminescence pad 222, metal clips 224 and base band 226.
Fig. 2 is the detailed sectional view of the electro luminescent metal shell fragment pad used in the general electroluminescence mode metal clips keypad.
As shown in the figure, electro luminescent metal shell fragment pad 220 is at the set adhesive 223 of electroluminescence pad 222 back coating, and electroluminescence pad 222 utilizes the adhesive 223 of coating bonding respectively with metal clips 224 or electroluminescence pad 222 with base band 226.
And, be coated with certain adhesive 227 in base band 226 back, bonding printed circuit board (PCB) 230.The following describes the function of this electroluminescence mode metal clips keypad.After the user pressed keycap 210, under actuator 211 effects that are positioned at keycap 210 back, metal clips 224 contacted with the fixed contact terminal 231 of printed circuit board (PCB) 230.
This electroluminescence pad is that the printed electroluminescent agent is made on certain thickness transparent basement membrane or diaphragm, or after adhering to the shell fragment pad on the metal clips, adheres to the electroluminescence pad and use on above-mentioned shell fragment pad.
With regard to this existing key region assembly, shell fragment pad and electroluminescence pad are positioned on the metal clips, and the integral thickness of key region assembly increases.
In addition, the rate of knocking is low, and the user need knock same key repeatedly, relatively inconvenience, and have the bad problem of sensitivity of knocking.
Summary of the invention
The objective of the invention is to improve as above problem in the past, thinner key region assembly is provided, cater to the compact trend of product, reduce the number of working processes, save fee of material.
In addition, another object of the present invention is to provide a kind of key region assembly that knocks rate height, good knocking sense.
In addition, another object of the present invention also is, at making above-mentioned key region assembly, provides a kind of manufacture method that can reduce the number of working processes, realize related accessory loss and minimization of loss.
Key region assembly of the present invention is characterized in that, contains:
Printed circuit board (PCB) has fixed contact terminal and mainboard earth terminal;
The electroluminescence pad, upper and lower surface has the switch terminal of mutual energising and the earth terminal of switching on mutually, when this electroluminescence pad was installed on described printed circuit board (PCB) top, this switch terminal and earth terminal corresponded respectively to described fixed contact terminal and mainboard earth terminal on upper-lower position;
Metal clips is bonded in described electroluminescence pad top;
Keycap, be formed with the actuator of pushing described metal clips of usefulness below, after pressing this keycap, this actuator makes this metal clips depress this switch terminal, connect the fixed contact terminal on the described printed circuit board (PCB), make between described switch terminal and earth terminal and switch on.
The manufacture method of key region assembly of the present invention is characterized in that, comprises following steps:
Step 1 is bonded in a metal clips on the electroluminescence pad, and this electroluminescence pad upper and lower surface has the switch terminal of mutual energising and the earth terminal of switching on mutually;
Step 2, metal clips-electron luminescence pad combination that step 1 is obtained is installed on the printed circuit board (PCB), have fixed contact terminal and main frame earth terminal on this printed circuit board (PCB), switch terminal upper-lower position correspondence on described fixed contact terminal and the electroluminescence pad, the earth terminal upper-lower position correspondence on described mainboard earth terminal and the electroluminescence pad.
Utilize the present invention, can improve problem in the past, thinner key region assembly is provided, cater to the compact trend of product, reduce the number of working processes, save fee of material.
In addition, metal clips is by electroluminescence pad or shell fragment pad, but directly knocked, so knock rate height, good knocking sense.
In addition, utilize the manufacture method of key region assembly of the present invention, can reduce the number of working processes, realize that related accessory runs off and minimization of loss.
Description of drawings
Fig. 1 and Fig. 2 have shown existing key region assembly.
Fig. 3 has shown useful embodiment of the present invention.
Fig. 4 is the block diagram that shows key region assembly manufacture method of the present invention.
10... keycap, the 11... actuator,
20... the electroluminescence pad, the 21... switch terminal, the 22... earth terminal,
30... printed circuit board (PCB), the 31... fixed contact terminal, the 32... mainboard earth terminal,
40... metal clips.
Embodiment
Below by the of the present invention useful embodiment that shows in the accompanying drawing, the present invention will be described in more detail.
On printed circuit board (PCB) 30, have fixed contact terminal 31, and have earth terminal, to call " mainboard earth terminal " 32 in the following text.
As shown in the figure, electroluminescence pad 20 has switch terminal 21 and earth terminal 22 at upper and lower surface, above-mentioned switch terminal 21 and earth terminal 22 upper and lower surface energising respectively.Wherein, as shown in the figure, the energising of each terminal that on upper and lower surface, forms, can be by directly running through electroluminescence pad 20, the corresponding terminal that directly connects top and bottom realizes, but, under different situations, also can not run through electroluminescence pad 20, but by the circuitous energising in its side.
As above electroluminescence pad 20 is installed on the top of above-mentioned printed circuit board (PCB) 30, and wherein, above-mentioned earth terminal 22 is corresponding with above-mentioned mainboard earth terminal 32 upper-lower positions, and above-mentioned switch terminal 21 is corresponding with said fixing connection point terminal 31 upper-lower positions.
Under different situations, above-mentioned electroluminescence pad 20 also can not have switch terminal 21, at this moment, is preferably in switch terminal 21 positions and makes an aperture, makes the fixed contact terminal 31 of above-mentioned printed circuit board (PCB) 30 can protrude from the top in above-mentioned hole.
The following describes the as above action of key region assembly of the present invention.After keycap 10 is pressed, actuator 11 is pushed above-mentioned metal clips 40, depress the switch terminal 21 of above-mentioned electroluminescence pad 20, connect the fixed contact terminal 31 on the printed circuit board (PCB) 30, make the switch terminal 21 of above-mentioned electroluminescence pad 20 and 22 of earth terminals realize energising.
Wherein, the switch terminal 21 that preferably makes above-mentioned electroluminescence pad 20 can improve the rate of knocking from it towards last suitable protrusion with this.
On the other hand, the block diagram of Fig. 4 has shown the useful manufacture method of above-mentioned key region assembly.
At first, on electroluminescence pad 20, make earth terminal 22, be ready to electroluminescence pad 20.Wherein, where necessary, also can together make switch terminal 21.
Then, above-mentioned metal clips-electroluminescence pad combination is bonded on the printed circuit board (PCB) 30.
Other step in addition is identical with the manufacturing step of key region assembly in the past, therefore omits the explanation to it.
As above manufacture method is suitable for purchasing respective accessory from the fittings supply merchant, and the production method by assembling product spare in next life can reduce the number of working processes, realizes minimizing of accessory loss and loss.
On the other hand, the present invention has used the portable communication terminal of using of above-mentioned key region assembly, be at the portable communication terminal of using in the past, use the key region assembly of the invention described above, replace key region assembly in the past, therefore, common insider extremely understands how to realize this portable communication terminal of using, and omits detailed description thereof.
Claims (2)
1, the key region assembly used of a kind of portable communication terminal device is characterized in that, contains:
Printed circuit board (PCB) has fixed contact terminal and mainboard earth terminal;
The electroluminescence pad, upper and lower surface has the switch terminal of mutual energising and the earth terminal of switching on mutually, when this electroluminescence pad was installed on described printed circuit board (PCB) top, this switch terminal and earth terminal corresponded respectively to described fixed contact terminal and mainboard earth terminal on upper-lower position;
Metal clips is bonded in described electroluminescence pad top;
Keycap, be formed with the actuator of pushing described metal clips of usefulness below, after pressing this keycap, this actuator makes this metal clips depress this switch terminal, connect the fixed contact terminal on the described printed circuit board (PCB), make between described switch terminal and earth terminal and switch on.
2, the manufacture method of the key region assembly used of a kind of portable communication terminal device is characterized in that, may further comprise the steps:
Step 1 is bonded in a metal clips on the electroluminescence pad, and this electroluminescence pad upper and lower surface has the switch terminal of mutual energising and the earth terminal of switching on mutually;
Step 2, metal clips-electron luminescence pad combination that step 1 is obtained is installed on the printed circuit board (PCB), have fixed contact terminal and main frame earth terminal on this printed circuit board (PCB), switch terminal upper-lower position correspondence on described fixed contact terminal and the electroluminescence pad, the earth terminal upper-lower position correspondence on described mainboard earth terminal and the electroluminescence pad.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050065339 | 2005-07-19 | ||
| KR1020050065339A KR20070010605A (en) | 2005-07-19 | 2005-07-19 | A key-pad assembly, a method for making it and a cellular phone with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1901562A true CN1901562A (en) | 2007-01-24 |
Family
ID=37657298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610090669XA Pending CN1901562A (en) | 2005-07-19 | 2006-07-06 | Key region assembly for portable communication terminal device and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20070010605A (en) |
| CN (1) | CN1901562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065388A (en) * | 2018-07-04 | 2018-12-21 | 嘉兴凯达电子有限公司 | A kind of switch terminal bending device |
-
2005
- 2005-07-19 KR KR1020050065339A patent/KR20070010605A/en not_active Application Discontinuation
-
2006
- 2006-07-06 CN CNA200610090669XA patent/CN1901562A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065388A (en) * | 2018-07-04 | 2018-12-21 | 嘉兴凯达电子有限公司 | A kind of switch terminal bending device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070010605A (en) | 2007-01-24 |
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|---|---|---|---|
| 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 |