CN200986877Y - key structure - Google Patents

Abstract

The utility model discloses a key structure, which comprises a substrate, an elastic piece and a key cap. The substrate includes a first contact, a second contact and a third contact. The elastic element is arranged on the substrate and corresponds to the third contact. The keycap is provided with a first surface and a second surface, the first surface comprises a first pressing part, a second pressing part and a third pressing part, the second surface comprises a first contact part, a second contact part and a third contact part, the first pressing part corresponds to the first contact part, the second pressing part corresponds to the second contact part, the third pressing part corresponds to the third contact part, the third contact part is structurally abutted to the elastic part, the first contact part is electrically coupled with the third contact part, and the second contact part is electrically coupled with the third contact part.

Description

key structure

technical field

The utility model relates to a key structure, in particular to a single key structure capable of inputting multiple different signals.

Background technique

The existing key structure uses a single key structure to input a single signal. However, as the volume of portable electronic devices becomes smaller and smaller, the existing key structure cannot meet the requirements of small size and convenient pressing at the same time.

Utility model content

The purpose of this utility model is to provide a button structure to solve the above-mentioned problems in the prior art.

The purpose of the utility model is achieved by providing a key structure, which includes a base plate, an elastic member and a key cap. The substrate includes a first contact, a second contact and a third contact. The elastic element is disposed on the substrate and corresponds to the third contact. The keycap has a first surface and a second surface, the first surface includes a first pressing portion, a second pressing portion and a third pressing portion, the second surface includes a first contact portion and a second A contact portion and a third contact portion, the first pressing portion corresponds to the first contact portion, the second pressing portion corresponds to the second contact portion, the third pressing portion corresponds to the third contact portion, and the third contact portion The structure abuts against the elastic member, and the first contact portion is electrically coupled to the third contact portion, and the second contact portion is electrically coupled to the third contact portion.

The utility model also provides a button structure, which includes: a substrate, the substrate includes a first contact, a second contact and a third contact, the first contact, the second contact and the third contact have conductivity ; an elastic member with conductivity, located on the substrate, and corresponding to the third contact; and a key cap, the key cap includes: a first surface and a second surface; a first pressing part, a A second pressing part and a third pressing part are arranged on the first surface; a swing arm has conductivity and is arranged on the second surface, and the swing arm has a first contact part, a second contact part and a The third contact part, the first pressing part corresponds to the first contact part, the second pressing part corresponds to the second contact part, the third pressing part corresponds to the third contact part, and the third contact part abuts against the elastic wherein, when a pressing force is applied to the first pressing portion, the keycap is inclined toward the first contact so that the first contact portion contacts the first contact, and the first contact passes through the third contact portion and The elastic member is electrically coupled to the third contact, and when the pressing force is applied to the second pressing portion, the keycap tilts toward the second contact so that the second contact portion contacts the second contact, so that the second contact portion contacts the second contact. The second contact is electrically coupled with the third contact through the third contact portion and the elastic member.

The utility model also provides a button structure, which includes: a substrate, the substrate includes a first contact, a second contact, a third contact and a fourth contact, the first contact, the second contact, the The third contact and the fourth contact have conductivity; an elastic member with conductivity is arranged on the substrate and corresponds to the third contact; and a keycap has a first surface and a second surface, The first surface includes a first pressing portion, a second pressing portion, a third pressing portion, and a fourth pressing portion, and the second surface includes a first contact portion, a second contact portion, and a third contact portion and a fourth contact portion, the first pressing portion corresponds to the first contact portion, the second pressing portion corresponds to the second contact portion, the third pressing portion corresponds to the third contact portion, and the fourth pressing portion corresponds to the The fourth contact portion, the third contact portion abuts against the elastic member, and the first contact portion, the second contact portion, and the third contact portion have conductivity, and the first contact portion, the second contact portion part and the fourth contact part are electrically coupled with the third contact part respectively, wherein when pressing between the first pressing part and the second pressing part, the keycap faces the first contact and the second The contact point is inclined so that the first contact portion and the second contact portion respectively contact the first contact point and the second contact point, and make the first contact point and the second contact point contact the first contact point and the second contact point through the third contact portion and the elastic member at the same time. The three contacts are electrically coupled; when pressing between the second pressing part and the fourth pressing part, the keycap tilts toward the second contact and the fourth contact so that the second contact part and the fourth contact The part contacts the second contact and the fourth contact respectively, and makes the second contact and the fourth contact electrically coupled with the third contact through the third contact part and the elastic member at the same time.

The utility model also provides a button structure, which includes: a substrate, the substrate includes a first contact, a second contact, a third contact and a fourth contact, the first contact, the second contact, the The third contact and the fourth contact have conductivity; an elastic member with conductivity is arranged on the substrate and corresponds to the third contact; and a key cap, the key cap includes: a first surface and a the second surface; a first pressing part, a second pressing part, a third pressing part and a fourth pressing part are arranged on the first surface; a swing arm has conductivity and is arranged on the second surface, The swing arm includes a first contact portion, a second contact portion, a third contact portion and a fourth contact portion, the first pressing portion corresponds to the first contact portion, and the second pressing portion corresponds to the second contact portion , the third pressing portion corresponds to the third contact portion, the fourth pressing portion corresponds to the fourth contact portion, and the third contact portion abuts against the elastic member, wherein when the first pressing portion and the second pressing portion are pressed When pressing between the parts, the keycap tilts toward the first contact point and the second contact point so that the first contact part and the second contact part contact the first contact point and the second contact point respectively, and the first contact point The contact point and the second contact point are electrically coupled to the third contact point through the third contact portion and the elastic member at the same time; when pressing between the second pressing portion and the fourth pressing portion, the keycap faces the second contact point and the fourth contact point are inclined so that the second contact portion and the fourth contact portion contact the second contact point and the fourth contact point respectively, and the second contact point and the fourth contact point pass through the third contact portion and the elastic member At the same time, it is electrically coupled with the third contact.

The utility model has the advantage that, by applying the utility model, multiple different signals can be input with a single button structure, so the number of parts and the installation space can be saved, and the overall volume of the keyboard can be reduced.

Description of drawings

Fig. 1a is an exploded view of the button structure of the first embodiment of the present invention;

Fig. 1b is a combination diagram of the button structure of the first embodiment;

Fig. 1c is the I-I direction sectional view among Fig. 1b;

Figure 2a and Figure 2b are schematic diagrams of signal generation in the first embodiment of the present invention;

Fig. 3a and Fig. 3b are schematic diagrams of signal generation in the second embodiment of the present invention;

Fig. 4 is a schematic diagram of the button structure of the third embodiment of the present invention;

Fig. 5a is a schematic diagram of the button structure of the fourth embodiment of the present invention;

FIG. 5b is a schematic diagram of signal generation in the fourth embodiment of the present invention; and

Fig. 5c is a schematic diagram of signal generation in a modified example of the fourth embodiment of the present invention.

Description of main component symbols

100, 200, 300～button structure

110～substrate

111～the first contact

112～Second contact

113～the third contact

114～the fourth contact

115～fifth contact

116～sixth contact

120～Elastic piece

130～swing arm

130'～conductive layer

131, 131'～the first contact part

132, 132'～second contact part

133, 133'～the third contact part

134～fourth contact part

135～fifth contact part

140, 140’～Keycap

141～the first pressing part

142～Second pressing part

143 ~ the third pressing part

144～the fourth pressing part

145～the fifth pressing part

146～convex part

150, 150'～coding unit

151～first signal

Detailed ways

Referring to FIG. 1 , it is an exploded view of a key structure 100 according to a first embodiment of the present invention, including a base plate 110 , an elastic member 120 , a swing arm 130 and a key cap 140 .

The substrate 110 includes a first contact 111 , a second contact 112 , a third contact 113 , a fourth contact 114 and a fifth contact 115 , the first contact 111 , the second contact 112 , the third contact 113 , the fourth contact 114 and the fifth contact 115 are conductive.

An elastic member 120 is electrically conductive, disposed on the substrate 110 and corresponding to the third contact 113 . The swing arm 130 is conductive and includes a first contact portion 131 , a second contact portion 132 , a third contact portion 133 , a fourth contact portion 134 and a fifth contact portion 135 .

Referring to FIG. 1b and FIG. 1c together, FIG. 1b shows a combined view of the button structure 100, and FIG. 1c is a cross-sectional view along the I-I direction in FIG. 1b. The keycap 140 includes a first surface and a second surface. The first surface has a first pressing portion 141 , a second pressing portion 142 , a third pressing portion 143 , a fourth pressing portion 144 and a fifth pressing portion 145 . The swing arm 130 is disposed on the second surface. The first pressing part 141 corresponds to the first contact part 131, the second pressing part 142 corresponds to the second contact part 132, the third pressing part 143 corresponds to the third contact part 133, and the fourth pressing part 144 corresponds to the The fourth contact portion 134 , the fifth pressing portion 145 correspond to the fifth contact portion 135 , and the third contact portion 133 abuts against the elastic member 120 .

Referring to FIG. 2a and FIG. 2b, when a pressing force F is applied to the first pressing portion 141, the keycap 140 is inclined toward the first contact point 111 so that the first contact portion 131 contacts the first contact point 111, so that the The first contact 111 is electrically coupled to the third contact 113 through the third contact portion 133 and the elastic member 120 . The key structure 100 further includes an encoding unit 150 coupled to the first contact 111 , the second contact 112 , the third contact 113 , the fourth contact 114 and the fifth contact 115 . When the first contact 111 is connected to the third contact 113 , the encoding unit 150 sends a first signal 151 .

Similarly, when the pressing force F is applied to the second pressing portion 142 , the encoding unit 150 will correspondingly send a second signal. When the pressing force F is applied to the fourth pressing portion 144 , the encoding unit 150 will correspondingly send a fourth signal. When the pressing force F is applied to the fifth pressing portion 145 , the encoding unit 150 will correspondingly send a fifth signal.

The substrate 110 is a printed circuit board. The shape of the elastic component 120 is a hemisphere (Dome).

With the application of the utility model, a plurality of different signals can be input with a single button structure, thereby saving the number of parts and setting space, and reducing the overall volume of the keyboard.

Referring to Fig. 3a, 3b, it shows the button structure 200 of the second embodiment of the present invention, which is characterized in that when the pressing force F is applied between the first pressing part 141 and the second pressing part 142, the The keycap is inclined toward the first contact 111 and the second contact 112 so that the first contact portion 131 and the second contact portion 132 contact the first contact 111 and the second contact 112 respectively, and the first contact 111 and the second contact 112 are simultaneously electrically coupled to the third contact 113 through the third contact portion 133 and the elastic member 120 . When the first contact 111, the second contact 112 and the third contact 113 are turned on, the encoding unit 150' sends a first signal 151.

Similarly, in the second embodiment, when the pressing force F is applied between the second pressing portion 142 and the fourth pressing portion 144, the encoding unit 150' will correspondingly send a second signal.

The difference between the first embodiment and the second embodiment lies in the way the signal is generated.

Referring to Fig. 4, it shows the button structure 300 of the third embodiment of the present utility model, and its characteristic is that the keycap 140' has a plurality of convex parts 146, corresponding to the first pressing part, the second pressing part, the The third pressing part, the fourth pressing part and the fifth pressing part. The conductive layer 130' is directly formed on the second surface of the keycap 140' by means of coating or the like. The conductive layer 130' includes a first contact portion 131', a second contact portion 132', a third contact portion 133', a fourth contact portion and a fifth contact portion. Compared with the first embodiment, the third embodiment replaces the swing arm with a protruding portion and a conductive layer.

Referring to FIG. 5 a , it shows the button structure 400 of the fourth embodiment of the present invention, which is characterized in that it further includes a sixth contact 116 surrounding the third contact 113 . Referring to FIG. 5b, when a pressing force F is applied to the first pressing portion 141, the keycap 140 is inclined toward the first contact point 111 so that the first contact portion 131 contacts the first contact point 111, so that the first contact point 111 is electrically coupled to the sixth contact 116 through the third contact portion 133 and the elastic member 120 , and at this time the encoding unit 150 sends out the first signal 151 . In the fourth embodiment, the third contact portion 133 is directly electrically coupled to the elastic member 120 and the sixth contact 116 .

Referring to FIG. 5c, it shows a modified example of the fourth embodiment, which is characterized in that after the first contact 111 is electrically coupled with the sixth contact 116 through the third contact portion 133 and the elastic member 120, the user must The pressing force is strengthened, so that the third contact portion 133 and the elastic member 120 contact and couple with the third contact point 113 , so that the encoding unit 150 confirms to send the first signal 151 .

Claims (11)

1. a press-key structure is characterized in that, comprising: a substrate, this substrate comprise one first contact, one second contact and one the 3rd contact, and this first contact, second contact and the 3rd contact have conductivity; One elastic component has conductivity, is located on this substrate, and to should the 3rd contact; An and keycap, has one first and one second, this first face comprises one first press section, one second press section and one the 3rd press section, this second face comprises one first contact site and one second contact site and one the 3rd contact site, this first press section is to should first contact site, this second press section is to should second contact site, the 3rd press section is to should the 3rd contact site, the 3rd this elastic component of contact site structure butt, and this first contact site, this second contact site and the 3rd contact site have conductivity, and this first contact site and the 3rd contact site electric property coupling, this second contact site and the 3rd contact site electric property coupling, wherein, when a pressing force puts on this first press section, this keycap is towards this first contact inclination and make this first contact site contact this first contact, make this first contact by the 3rd contact site and this elastic component and the 3rd contact electric property coupling, when this pressing force puts on this second press section, this keycap is towards this second contact inclination and make this second contact site contact this second contact, makes this second contact by the 3rd contact site and this elastic component and the 3rd contact electric property coupling.

2. press-key structure as claimed in claim 1 is characterized in that, this substrate is a printed circuit board (PCB).

3. press-key structure as claimed in claim 1, it is characterized in that, more comprise a coding unit, this coding unit couples this first contact, this second contact and the 3rd contact, when this first contact and the 3rd contact conducting, this coding unit is sent one first signal, and when this second contact and the 3rd contact conducting, this coding unit is sent a secondary signal.

4. press-key structure as claimed in claim 1 is characterized in that being shaped as of this elastic component is hemispherical.

5. a press-key structure is characterized in that, comprising: a substrate, this substrate comprise one first contact, one second contact and one the 3rd contact, and this first contact, second contact and the 3rd contact have conductivity; One elastic component has conductivity, is located on this substrate, and to should the 3rd contact; And a keycap, this keycap comprises: one first and one second; One first press section, one second press section and one the 3rd press section are arranged at this first; One swing arm, has conductivity, be arranged at this second, this swing arm has one first contact site, one second contact site and one the 3rd contact site, this first press section is to should first contact site, this second press section is to should second contact site, and the 3rd press section is to should the 3rd contact site, the 3rd this elastic component of contact site butt; Wherein, when a pressing force puts on this first press section, this keycap is towards this first contact inclination and make this first contact site contact this first contact, make this first contact by the 3rd contact site and this elastic component and the 3rd contact electric property coupling, when this pressing force puts on this second press section, this keycap is towards this second contact inclination and make this second contact site contact this second contact, makes this second contact by the 3rd contact site and this elastic component and the 3rd contact electric property coupling.

6. press-key structure as claimed in claim 5, it is characterized in that, more comprise a coding unit, this coding unit couples this first contact, this second contact and the 3rd contact, when this first contact and the 3rd contact conducting, this coding unit is sent one first signal, and when this second contact and the 3rd contact conducting, this coding unit is sent a secondary signal.

7. press-key structure as claimed in claim 5 is characterized in that being shaped as of this elastic component is hemispherical.

8. a press-key structure is characterized in that, comprising: a substrate, this substrate comprise one first contact, one second contact, one the 3rd contact and one the 4th contact, and this first contact, this second contact, the 3rd contact and the 4th contact have conductivity; One elastic component has conductivity, is located on this substrate, and to should the 3rd contact; An and keycap, has one first and one second, this first face comprises one first press section, one second press section, one the 3rd press section and one the 4th press section, this second face comprises one first contact site, one second contact site 1 the 3rd contact site and one the 4th contact site, this first press section is to should first contact site, this second press section is to should second contact site, the 3rd press section is to should the 3rd contact site, the 4th press section is to should the 4th contact site, the 3rd this elastic component of contact site structure butt, and this first contact site, this second contact site and the 3rd contact site have conductivity, and this first contact site, this second contact site and the 4th contact site respectively with the 3rd contact site electric property coupling, wherein, when pushing between this first press section and this second press section, this keycap is towards this first contact and this second contact tilts and make this first contact site and this second contact site contact this first contact and this second contact respectively, and makes this first contact and second contact by the 3rd contact site and this elastic component while and the 3rd contact electric property coupling; When pushing between this second press section and the 4th press section, this keycap is towards this second contact and the 4th contact tilts and make this second contact site and the 4th contact site contact this second contact and the 4th contact respectively, and makes this second contact and the 4th contact by the 3rd contact site and this elastic component while and the 3rd contact electric property coupling.

9. press-key structure as claimed in claim 8, it is characterized in that, more comprise a coding unit, this coding unit couples this first contact, this second contact, the 3rd contact and the 4th contact, when this first contact, when this second contact and the 3rd contact conducting, this coding unit is sent one first signal, when this second contact, the 4th contact and the 3rd contact conducting, this coding unit is sent a secondary signal.

10. a press-key structure is characterized in that, comprising: a substrate, this substrate comprise one first contact, one second contact, one the 3rd contact and one the 4th contact, and this first contact, this second contact, the 3rd contact and the 4th contact have conductivity; One elastic component has conductivity, is located on this substrate, and to should the 3rd contact; And a keycap, this keycap comprises: one first and one second; One first press section, one second press section, one the 3rd press section and one the 4th press section are arranged at this first; One swing arm, has conductivity, be arranged at this second, this swing arm comprises one first contact site, one second contact site 1 the 3rd contact site and one the 4th contact site, this first press section is to should first contact site, this second press section is to should second contact site, the 3rd press section is to should the 3rd contact site, the 4th press section is to should the 4th contact site, the 3rd this elastic component of contact site structure butt, wherein, when pushing between this first press section and this second press section, this keycap is towards this first contact and this second contact tilts and make this first contact site and this second contact site contact this first contact and this second contact respectively, and makes this first contact and second contact by the 3rd contact site and this elastic component while and the 3rd contact electric property coupling; When pushing between this second press section and the 4th press section, this keycap is towards this second contact and the 4th contact tilts and make this second contact site and the 4th contact site contact this second contact and the 4th contact respectively, and makes this second contact and the 4th contact by the 3rd contact site and this elastic component while and the 3rd contact electric property coupling.

11. press-key structure as claimed in claim 10, it is characterized in that, more comprise a coding unit, this coding unit couples this first contact, this second contact, the 3rd contact and the 4th contact, when this first contact, when this second contact and the 3rd contact conducting, this coding unit is sent one first signal, when this second contact, the 4th contact and the 3rd contact conducting, this coding unit is sent a secondary signal.

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