CN200953301Y - Thin-film key and elastic electric conducting sheet structure thereof - Google Patents
Thin-film key and elastic electric conducting sheet structure thereof Download PDFInfo
- Publication number
- CN200953301Y CN200953301Y CN 200620137399 CN200620137399U CN200953301Y CN 200953301 Y CN200953301 Y CN 200953301Y CN 200620137399 CN200620137399 CN 200620137399 CN 200620137399 U CN200620137399 U CN 200620137399U CN 200953301 Y CN200953301 Y CN 200953301Y
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- film key
- elastic
- conducting strip
- electric
- chip architecture
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Abstract
The utility model discloses a film key press and its elastic conducting strip structure, which comprises a circuit base plate whose end surface is provided with at least one electric contact point, at least one electric conducting strip configured corresponding with the electric contact point and a triggering part positioned on one end surface at the center part facing to the electric contact point and has four electric contacting bumps. The elastic conducting strip structure as above mentioned can improve the elastic conducting strip's intension; in addition, the triggering part has four electric contacting bumps to form a good electrical contact with the electric contact point to output the key press signal, which improves the existing film key press and its elastic conducting strip's electric contacting effect, intensity and prolongs the service life.
Description
Technical field
The utility model relates to a kind of pressure-controlled instruction inputting device, particularly a kind of film key and elastic conduction chip architecture thereof with high electric contact.
Background technology
The present portable electronic product that is applied to, instruction input as mobile phone, PDA and Satellite Navigation Set, mostly be to see through film key to cooperate elastic structure voltage-controlled that presses element or be provided with trigger (pressure key), input as user's control command, on the structural design of film key, will directly react the output of its electric contact and keying signal, so design of good button and metallic conduction chip architecture thereof are arranged, will promote with the electric of electric terminal and contact and the signal quality.
Existing metallic film button, all be by one on end face, be provided with most electric terminals circuit board and with quantity such as electric terminal, the elastic metallic conducting strip of spill design is formed, as TaiWan, China patent gazette M291077 number " thin film press button structure improvement ", M282252 number novel patents such as " structural improvements of film key ", and in the application of portable electronic product, as I256233 number " portable electronic devices " novel patent of TaiWan, China patent gazette etc. with press button mechanism, these patents have all disclosed through the relative configuration of circuit board with the elastic metallic conducting strip, the generation conducting strip is out of shape and is done electrically to contact with the electric terminal of circuit board by inner side end when voltage-controlled, to produce keying signal output, elastic metallic conducting strip in above-mentioned each patent all is simple, smooth-going arc concave structural design, the voltage-controlled morphotropism of Yi Yin is different and influence contacts with the electrical of electric terminal, and the control of the smooth-going degree in the recessed surface of metallic conduction sheet Material Selection and thickness evenness and arc is neither very good, cause the persistence of good electrically contact not good enough, useful life is also shorter certainly.
The utility model content
For overcoming above-mentioned defective, the utility model main purpose is to solve above-mentioned conventional metals conducting strip disappearance, and a kind of film key and elastic conduction chip architecture thereof are provided.
For achieving the above object, film key of the present utility model and elastic conduction chip architecture thereof comprise: a circuit substrate, end face are provided with at least one electric terminal; At least one elastic conducting strip to disposing by electric terminal, is being provided with a triggering portion on central part one end face of this electric terminal, this triggering portion has the prominent point of four electric contacts.
Because above-mentioned elastic conducting strip is to disposing by electric terminal, on central part one end face of this electric terminal, be provided with a triggering portion, can improve the intensity of conducting strip, this triggering portion has the prominent point of four electric contacts and contacts the output of generation keying signal, electrical contact effect, intensity and the useful life of improving existing film key and elastic conducting strip thereof with electric terminal formation excellent electrical property.
Description of drawings
Fig. 1 is the stereochemical structure exploded view of the utility model one embodiment.
Fig. 2 is the partial structurtes enlarged drawing of the utility model one embodiment.
Fig. 3 is the plan view of the utility model round and elastic conducting strip.
Fig. 4 is the cutaway view of the utility model spill elastic conducting strip.
Fig. 5 is the schematic diagram before the voltage-controlled action of the utility model.
Fig. 6 is the schematic diagram of the voltage-controlled electric contact condition of the utility model.
Fig. 7 is the preferable use-case size schematic diagram of the utility model one embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
See also Fig. 1, shown in Figure 2, the stereochemical structure that the utility model is formed is decomposed and local enlarged diagram.As shown in the figure: the utility model comprises that mainly a circuit substrate 1, a plurality of spill elastic conducting strip 2 (among the figure only illustration draw one) form, aforesaid circuit substrate 1 is on one plate end face, electricly be equipped with a plurality of electric terminals 11, spill elastic conducting strip 2 is that corresponding each electric terminal 11 is provided with, constitute the electric contact structures of button, be applied to portable electronic product, the voltage-controlled input control order of the preferable electric contact of user is provided.
Above-mentioned electric terminal 11, be respectively first electrode contact 12 and second electrode contact 13 of positive and negative electrode with the definition of concentric pattern form, in other words, the electric polarity of this first electrode contact 12 and second electrode contact 13 is the one that are respectively positive and negative electrode, and is set when circuit design and the binding of electric polarity circuit.
The above-mentioned spill elastic conducting strip of carrying 2, it is the metallic conduction sheet of an arc concave attitude, corresponding each electric terminal 11 and being disposed on the circuit substrate 1, this spill elastic conducting strip 2 is the circumferential surfaces 21 by its sheet body tip, keep being the electric form that contacts with above-mentioned first electrode contact 12, spill at spill elastic conducting strip 2, towards electric terminal 11 near on central part one end face, be laid with the prominent point of at least one electric contact to form triggering portion 22, the installation position of trigger point 22 is arranged in the corresponding region of second electrode contact 13, when causing spill elastic conducting strip 2 to be subjected to voltage-controlled distortion, form good electric the contact with second electrode contact 13.
See also Fig. 3 again to shown in Figure 4, the structure of the above-mentioned spill elastic conducting strip 2 different instantiation structural form designs of the utility model is looked squarely and cutaway view, this spill elastic conducting strip 2 can adopt circle, as shown in Figure 3 according to different portable electronic product button designs.The triggering portion 22 of arc-like sheet body construction shown in Figure 4 is shaped on the spill elastic conducting strip 2, can be for being 4 configurations in isogonism diagonal angle by the prominent point of four electric contacts.Simultaneously, the prominent point of the most electric contact of this triggering portion 22 is with equal angles, as the diagonal angle form configuration of A ° (about 45 degree), also can on average promote the mechanical strength and the useful life of spill elastic conducting strip 2.
See also Fig. 5, shown in Figure 6, schematic diagram is used in the voltage-controlled electric contact of film key of the present utility model and elastic conduction chip architecture thereof.As shown in the figure: an electric terminal 11 corresponding configurations that the utlity model has spill elastic conducting strip 2 with the circuit substrate 1 of triggering portion 22, the circumferential surface 21 of spill elastic conducting strip 2 keeps first electrode contact, 12 electric contacts the with electric terminal 11,22 arc concave attitudes that cooperate spill elastic conducting strip 2 of triggering portion, be corresponding second electrode contact 13 of noncontact form, as shown in Figure 5, when spill elastic conducting strip 2 is subjected to voltage-controlled and when distortion, to obtain preferable electrical the contact with second electrode contact 13 by its triggering portion 22, and produce the circuit design output that keying signal sees through circuit substrate 1.
For spill elastic conducting strip 2 architectural features of the present utility model are further understood, see also shown in Figure 7, the use-case size schematic diagram of the utility model spill elastic conducting strip 2, as shown in the figure: spill elastic conducting strip 2 preferred implementation diameters of the present utility model are 5mm, thickness T is 0.05mm (tolerance 5%), material is stainless steel substrate (numbering sus301), and conducting strip 2 is that plating nickel on surface or silver-plated sheet metal are good.The prominent spot diameter d1 of the electric contact of triggering portion 22 is with 0.2mm, the depth d 3 of the prominent point of electric contact is with 0.02mm, the depth d 2 of the prominent point of electric contact is good with 0.01mm, and can bear the active force of pushing of 110g-250g, thereby spill elastic conducting strip 2 of the present utility model can generally pushed under the active force 110g running freely.And the prominent point of electric contact is arranged in a positive square.Because the end face of above-mentioned spill elastic conducting strip 2 is provided with at least one prominent point and forms triggering portion, can improve the intensity of conducting strip, also in voltage-controlled action, can form preferable electric the contact, improve electrical contact effect, intensity and the useful life of existing film key and elastic conducting strip thereof with electric terminal to produce keying signal.
Above-mentioned is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model.Every equalization of doing according to the utility model changes and modifies, and is all the utility model claim scope and contains.
Claims (19)
1. film key and elastic conduction chip architecture thereof, it is characterized in that comprising: a circuit substrate, end face are provided with at least one electric terminal; At least one elastic conducting strip to disposing by electric terminal, is being provided with a triggering portion on central part one end face of this electric terminal, this triggering portion has the prominent point of four electric contacts.
2. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: this electric terminal has one first electrode contact and one second electrode contact with the definition of concentric pattern form.
3. film key according to claim 2 and elastic conduction chip architecture thereof is characterized in that: the electric polarity of this first electrode contact and this second electrode contact is the one that is respectively positive and negative electrode.
4. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: this spill elastic conducting strip keeps the electric form that contacts by the circumferential surface of this elastic conducting strip body tip with first electrode contact.
5. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: this triggering portion is provided with the prominent point of electric contact for the elastic conducting strip in spill near central part one end face.
6. film key according to claim 5 and elastic conduction chip architecture thereof is characterized in that: the installation position of this triggering portion is arranged in the formation zone of one second electrode contact of this electric terminal.
7. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: the diameter of this elastic conducting strip is 5mm, and thickness is 0.05mm, and tolerance is 5%.
8. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: the diameter of the prominent point of this electric contact is 0.2mm.
9. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: the degree of depth of the prominent point of this electric contact is 0.02mm.
10. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: what this triggering portion bore pushes active force between between the 110g to 250g.
11. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: this elastic conducting strip is the one of the sheet metal of electroplate or nickel plating.
12. film key according to claim 1 and elastic conduction chip architecture thereof is characterized in that: the prominent point of those electric contacts is arranged in a positive square.
13. film key and elastic conduction chip architecture thereof is characterized in that comprising: an elastic conducting strip is the metallic conduction sheet of spill; One triggering portion, this triggering portion is located at the central part of this elastic conducting strip, has the prominent point of four electric contacts.
14. film key according to claim 13 and elastic conduction chip architecture thereof is characterized in that: the diameter of this elastic conducting strip is 5mm, and thickness is 0.05mm, and tolerance is 5%.
15. film key according to claim 13 and elastic conduction chip architecture thereof is characterized in that: the diameter of the prominent point of this electric contact is 0.2mm.
16. film key according to claim 13 and elastic conduction chip architecture thereof is characterized in that: the degree of depth of the prominent point of this electric contact is 0.02mm.
17. film key according to claim 13 and elastic conduction chip architecture thereof is characterized in that: what this triggering portion bore pushes active force between between the 110g to 250g.
18. film key according to claim 13 and elastic conduction chip architecture thereof is characterized in that: the material of this elastic conducting strip is the one of the sheet metal of electroplate or nickel plating.
19. film key according to claim 13 and elastic conduction chip architecture thereof is characterized in that: the prominent point of those electric contacts is arranged in a positive square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620137399 CN200953301Y (en) | 2006-09-26 | 2006-09-26 | Thin-film key and elastic electric conducting sheet structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620137399 CN200953301Y (en) | 2006-09-26 | 2006-09-26 | Thin-film key and elastic electric conducting sheet structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953301Y true CN200953301Y (en) | 2007-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620137399 Expired - Fee Related CN200953301Y (en) | 2006-09-26 | 2006-09-26 | Thin-film key and elastic electric conducting sheet structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953301Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103748268A (en) * | 2011-09-21 | 2014-04-23 | 苹果公司 | Systems and methods for electroforming domes for use in dome switches |
| US10196750B2 (en) | 2012-12-07 | 2019-02-05 | Apple Inc. | Electroformed housings and methods for making the same |
-
2006
- 2006-09-26 CN CN 200620137399 patent/CN200953301Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103748268A (en) * | 2011-09-21 | 2014-04-23 | 苹果公司 | Systems and methods for electroforming domes for use in dome switches |
| US10196750B2 (en) | 2012-12-07 | 2019-02-05 | Apple Inc. | Electroformed housings and methods for making the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20110926 |