TWI308768B

TWI308768B - Key structure

Info

Publication number: TWI308768B
Application number: TW95138214A
Authority: TW
Inventors: Chien Shih Hsu; Pin Chien Liao
Original assignee: Darfon Electronics Corp
Priority date: 2006-10-17
Filing date: 2006-10-17
Publication date: 2009-04-11
Also published as: TW200820290A

Description

1308768 九、發明說明：【發明所屬之技術領域】本發明係有關於— ^ n 、種知鍵結構，特別係有關於一種可輸入夕個列簡的單—按鍵結構。【先前技術】習知的按鍵結構，诒號，然而，隨著可押勺按鍵結構輸入單一個訊按鍵結構已益法同裝置的體積越來越小，習知的 Μ π守滿足小體積以及按壓方便的要求。【發明内容】習知技術之問題’而提供之-種 -第-接點、—〜彈性件以及—鍵帽。基板包括 ’’ 弟—接點以及一第三接點。彈性件設於該基板之上，並對廣兮笛二拉# _ ' 一苐二接點。鍵帽具有一第一面及一第 —面’该第一面僉社—锋 ..-- 一、第一知7壓部、一第二按壓部及一第二按壓部’該第二面包括—筮一 ★ 括弟接觸邛及—弟二接觸部以 -弟- n该第—㈣部對應該第—接觸部，該第二按屢部對應該第二接觸部，該第三按屡部對應該第三接觸部，該第三接觸部社爐4技 ’ 无碉。丨、、、口構抵接邊弹性件，且該第一接觸部與該第三接觸部電性立，#$ 稱接^亥乐一接觸部與該第三接觸部電性耦接。應用本發明，可以單一個按鍵結構輸入多個不同訊號，因此可節省零件數量以及設置空間，體積。疋皿 0798-A21546TWF(N2);C0601 ] ；LEMON 6 1308768 【實施方式】參照第1圖，其係為本發明之第一實施例之按鍵結構 100的爆炸圖，包括一基板110、一彈性件12〇、一擺 130以及一鍵帽140。基板11〇包括一第一接點lu、一第二接點112、一第三接點113、一第四接點114以及一第五接點115，該第一接點111、該第二接點112、該第三接點113、該第四接點參 1H以及第五接點115具有導電性。一彈性件120具有導電性，設於該基板11〇之上，並對應該第三接點113。擺動臂130具有導電性，包括一第一接觸部131、一苐二接觸部132、一第三接觸部133、一第四接觸部134以及一第五接觸部135。 4合配參照弟1 b以及1 c圖，第1 b圖係顯示按鍵結構1 〇〇的組合圖’第lc圖係為第lb圖中的I-Ι方向剖面圖。鍵帽 140包括一第一面以及一第二面。該第一面具有一第—按 • 壓部141、一第二按壓部M2、一第三按壓部143、一第四按壓部144以及一第五按壓部145。擺動臂13〇則設於該第二面之上。該第一按壓部141對應該第一接觸部131， δ亥弟二按壓部142對應該第二接觸部132，該第三按壓部 143對應該第三接觸部133 ’該第四按壓部144對應該第四接觸部134,該第五按壓部145對應該第五接觸部135，該第三接觸部133抵接該彈性件120。參照第2a以及第2b圖，當一按壓力F施加於該第〆1308768 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a structure of a ^^, a type of key, and in particular to a single-key structure that can be input into a single column. [Prior Art] A conventional button structure, nickname, however, as the input of a single button structure with the push button structure has become smaller and smaller, the conventional π π shou satisfies a small volume and Easy to press. SUMMARY OF THE INVENTION [Problems of the prior art] provide - a - contact, - ~ elastic members and - key caps. The substrate includes a ''-contact and a third contact. The elastic member is disposed on the substrate and is connected to the 兮兮拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉拉The key cap has a first surface and a first surface. The first surface is a front surface. The first surface is a first pressing portion, a second pressing portion and a second pressing portion. Including - 筮一 ★ 括邛邛邛 — — — — — — — — — — — — — — — — — — 弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟弟The third part corresponds to the third contact part, and the third contact part is innocent. The 丨, , and the mouth structure abuts the edge elastic member, and the first contact portion and the third contact portion are electrically connected, and the contact portion is electrically coupled to the third contact portion. By applying the invention, a plurality of different signals can be input in a single button structure, thereby saving the number of parts and setting the space and volume.疋 0 0798-A21546TWF(N2); C0601 ] ; LEMON 6 1308768 [Embodiment] Referring to FIG. 1 , which is an exploded view of a button structure 100 according to a first embodiment of the present invention, comprising a substrate 110 and an elastic member 12 〇, a pendulum 130 and a keycap 140. The substrate 11 includes a first contact lu, a second contact 112, a third contact 113, a fourth contact 114, and a fifth contact 115. The first contact 111 and the second connection The point 112, the third contact 113, the fourth contact point 1H, and the fifth contact 115 have electrical conductivity. An elastic member 120 is electrically conductive and disposed on the substrate 11A and corresponds to the third contact 113. The oscillating arm 130 is electrically 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. 4 is a reference frame 1 b and 1 c, and a 1 b is a combination diagram showing a key structure 1 〇 ’. The lc diagram is a cross-sectional view in the I-Ι direction in the lb. The keycap 140 includes a first side and a second side. The first mask has a first pressing portion 141, a second pressing portion M2, a third pressing portion 143, a fourth pressing portion 144, and a fifth pressing portion 145. The swing arm 13 is disposed above the second surface. The first pressing portion 141 corresponds to the first contact portion 131, and the second pressing portion 142 corresponds to the second contact portion 132. The third pressing portion 143 corresponds to the third contact portion 133'. The fourth contact portion 134 should correspond to the fifth contact portion 135, and the third contact portion 133 abuts the elastic member 120. Referring to Figures 2a and 2b, when a pressing force F is applied to the third

0798-A21546TWF(N2);C06011 ;LEMON 1308768 m日夺’該鍵帽140朝該第一接點iu傾斜而使該接觸部131接觸該第—接點⑴，使該第—接點⑴ 糟由第三接觸部133及該彈性件120與該第三接點113電性耦接。按鍵結構100更包括一編碼單元150，該編碼單元150耦接该第一接點m、該第二接點、該第三接點 113、該第四接點114以及該第五接點115。當該第=接點 111與該第三接點113導通時，該編碼單元15 —訊號151。弟 φ 同樣的，當按壓力F施加於該第二按壓部1C時，十亥編，單元15〇會相應送出一第二訊號。當按壓力f施加: 该弟四按壓部144肖’該編碼單元15G會相應送出一第四訊號。當按壓力F施加於該第五按壓部145時，該編碼單疋150會相應送出一第五訊號。、該基板U0為一印刷電路板。該彈性元件12〇的形為半球狀(Dome)。應用本發明，可以單—個按鍵結構輸人多個不同訊曝=，因此可節省零件數量以及設置空間，縮小鍵盤的整體體積。參照第3a、3b圖’其係顯示本發明之第二實施例的按鍵結構200，其特點在於，當㈣力F施加於該第一按壓部141與，第二按壓部142之間時，該鍵帽朝該第一接點 ill及該第二接點112傾斜而使該第一接觸部及該二接觸部二2分別接觸該第-接.點111及該第二接點 112’且使該第-接點U1及第二接點112藉由第三接觸部 0798-A21546T WF(N2);C060 ] ] ;LEMON „ 1308768 133及該彈性件12G同時與該第三接點ιΐ3電性搞接。各該第-接點⑴，該第二接點112及該第三接點ιΐ3導^ 時，該編碼單元150,送出一第一訊號151。同樣的’在第二實施例中，當按壓力F施加於該第二按壓部142以及該第四按塵部144之間時，該編碼單元15〇, 會相應送出一第二訊號。第-貫施例與第二實施例的差異點在於，訊號產生的方式不同。照第4 ϋ ’其係顯示本發明之第三實施例的按鍵結構300 ’其特點在於，該鍵帽14〇，具有複數個凸狀部⑷，對應該第一按壓部、該第二按壓部、該第三按壓部、該第四按麼部以及該第五㈣部。導電層13Q，直接以鍍膜等方式形成於該鍵帽140,的該第二面。導電層13〇m 接觸部131，、-第二接觸部132，、一第三接觸部133，、一 ^四接觸部以及-第五接觸部。相較於第—實施例，第三具施例以凸狀部以及導電層取代該擺動臂。 > 參照帛5a目，其係顯示本發明之帛四實制的按鍵結構400 ’其特點在於，其更包括一第六接點ιΐ6，環繞該第三接點H3。參照第5b圖，當—按壓力μ加於該第一按壓部141時，該鍵帽140朝該第一接點ιη傾斜而使該第一闕部131接觸該第—接點⑴，使該第一接點m藉由第三接觸部133及該彈性件12〇與該第六接點116電性耦接’此時編碼單元150送出該第—訊號151。在第四實施例中’第三接觸部133直接電性_彈性件12()以及該 0798-A21546TWF(N2);C06011 ;LEMON 9 1308768 第六接點116。參照第5c圖，其係顯示第四實施例的變形例，其特點在於，在該第一接點111藉由第三接觸部133及該彈性件 120與該第六接點116電性耦接之後，使用者必須加強按壓的力道，使第三接觸部133及彈性件120抵接並耦接該第三接點113，藉此使編碼單元150確認送出該第一訊號 15卜雖然本發明已以具體之較佳實施例揭露如上，然其並 φ 非用以限定本發明，任何熟習此項技藝者，在不脫離本發明作之精神和範圍内，仍可作些許的更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。0798-A21546TWF(N2); C06011; LEMON 1308768 m? The keycap 140 is inclined toward the first contact iu so that the contact portion 131 contacts the first contact (1), causing the first contact (1) to be bad The third contact portion 133 and the elastic member 120 are electrically coupled to the third contact 113. The button structure 100 further includes an encoding unit 150. The encoding unit 150 is coupled to the first contact m, the second contact, the third contact 113, the fourth contact 114, and the fifth contact 115. When the first contact 111 and the third contact 113 are turned on, the coding unit 15 is signal 151. Similarly, when the pressing force F is applied to the second pressing portion 1C, the unit 15〇 sends a second signal accordingly. When the pressing force f is applied: the fourth pressing portion 144 of the younger one, the encoding unit 15G sends a fourth signal accordingly. When the pressing force F is applied to the fifth pressing portion 145, the code unit 150 sends a fifth signal correspondingly. The substrate U0 is a printed circuit board. The elastic member 12 is shaped like a dome. By applying the invention, a plurality of different exposures can be input by a single button structure, thereby saving the number of parts and setting space, and reducing the overall volume of the keyboard. Referring to Figures 3a and 3b, there is shown a key structure 200 according to a second embodiment of the present invention, characterized in that when (four) force F is applied between the first pressing portion 141 and the second pressing portion 142, The key cap is inclined toward the first contact ill and the second contact 112 such that the first contact portion and the two contact portions 2 respectively contact the first connection point 111 and the second contact point 112' The first contact U1 and the second contact 112 are electrically connected to the third contact ιΐ3 by the third contact portion 0798-A21546T WF(N2); C060 ]]; LEMON „ 1308768 133 and the elastic member 12G. When the first contact (1), the second contact 112 and the third contact ιΐ3 are turned on, the coding unit 150 sends a first signal 151. The same 'in the second embodiment, when When the pressing force F is applied between the second pressing portion 142 and the fourth dust pressing portion 144, the encoding unit 15A sends a second signal correspondingly. The difference between the first embodiment and the second embodiment The signal is generated in a different manner. According to the fourth aspect, the key structure 300' of the third embodiment of the present invention is characterized in that the keycap 14〇 And having a plurality of convex portions (4) corresponding to the first pressing portion, the second pressing portion, the third pressing portion, the fourth pressing portion, and the fifth (four) portion. The conductive layer 13Q is directly coated by a film or the like Formed on the second side of the keycap 140. The conductive layer 13〇m contact portion 131, the 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 convex portion and a conductive layer. > Referring to Figure 5a, it shows the button structure 400' of the fourth embodiment of the present invention. The figure further includes a sixth contact point ΐ6 surrounding the third contact point H3. Referring to FIG. 5b, when the pressing force μ is applied to the first pressing portion 141, the key cap 140 faces the first contact point. The first contact portion 131 is in contact with the first contact portion (1), and the first contact portion m is electrically coupled to the sixth contact portion 116 by the third contact portion 133 and the elastic member 12' At this time, the encoding unit 150 sends the first signal 151. In the fourth embodiment, the third contact portion 133 is directly electrically _ elastic member 12 () and the 0798- A21546TWF(N2); C06011; LEMON 9 1308768 sixth contact 116. Referring to Fig. 5c, a modification of the fourth embodiment is shown, characterized in that the first contact 111 is provided by the third contact portion 133. After the elastic member 120 is electrically coupled to the sixth contact 116, the user must strengthen the pressing force to make the third contact portion 133 and the elastic member 120 abut and couple the third contact 113. The encoding unit 150 confirms that the first signal 15 is sent. Although the invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and anyone skilled in the art can do without departing from the invention. In the spirit and scope of the invention, there may be some modifications and refinements, and the scope of the invention is defined by the scope of the appended claims.

0798-A21546TWF(N2);C06011 ;LEMON 10 1308768 【圖式簡單說明】圖；第u圖係顯示本發明第-實施例之按鍵結構的爆炸第lb圖係顯示第一實施例之按鍵結構的組合圖；第lc圖係顯示第lb圖中的μ〗方向剖面圖；第2a、2b圖係顯示本發明第一實施例的訊號產生情形；第3a、3b圖係顯示本發明第二實施例的訊號產生情形；第4圖係顯示本發明第三實施例的按鍵結構；藝第5a圖係顯示本發明第四實施例的按鍵結構；第5b圖係顯示本發明第四實施例的訊號產生情形；以及第5c圖係顯示本發明第四實施例之變形例的訊號產生情形。【主要元件符號說明】 100、200、300〜按鍵結構 B 110〜基板 111〜第一接點 112〜第二接點 113〜第三接點 114〜第四接點 115〜第五接點 116〜第六接點 120〜彈性件0798-A21546TWF(N2); C06011; LEMON 10 1308768 [Simplified illustration of the drawings] Fig. u shows an explosion of the key structure of the first embodiment of the present invention. The lb diagram shows the combination of the key structures of the first embodiment. Figure lc shows a cross-sectional view in the direction of μ in Figure lb; Figures 2a and 2b show the signal generation in the first embodiment of the present invention; Figures 3a and 3b show the second embodiment in the present invention. Figure 4 shows a key structure of a third embodiment of the present invention; Figure 5a shows a key structure of a fourth embodiment of the present invention; and Figure 5b shows a signal generation situation of the fourth embodiment of the present invention. And Fig. 5c shows a signal generation situation of a modification of the fourth embodiment of the present invention. [Description of main component symbols] 100, 200, 300 to key structure B 110 to substrate 111 to first contact 112 to second contact 113 to third contact 114 to fourth contact 115 to fifth contact 116 to Sixth contact 120~ elastic member

0798-A21546TWF(N2);C06011 ;LEMON 1308768 130〜擺動臂 130、 -導電層 131、 13Γ〜第一接觸部 132、 132’〜第二接觸部 133、 133’〜第三接觸部 134〜第四接觸部 135〜第五接觸部 140、 140’〜鍵帽 141〜第一按壓部 142〜第二按壓部 143〜第三按壓部 144〜第四按壓部 145〜第五按壓部 146〜凸狀部 150、 150’〜編碼單元 151〜第一訊號 0798-A21546TWF(N2);C06011 ;LEMON 120798-A21546TWF(N2); C06011; LEMON 1308768 130~ swing arm 130, - conductive layer 131, 13Γ~ first contact portion 132, 132'~ second contact portion 133, 133'~ third contact portion 134~4 Contact portion 135 to fifth contact portion 140, 140' to keycap 141 to first pressing portion 142 to second pressing portion 143 to third pressing portion 144 to fourth pressing portion 145 to fifth pressing portion 146 to convex portion 150, 150'~ coding unit 151~first signal 0798-A21546TWF(N2); C06011; LEMON 12

Claims

1308768 X. Patent application scope: 1. A button structure, comprising: a substrate, comprising a first contact, a second contact and a third contact, the first contact, the second contact and the first The three contacts are electrically conductive; an elastic member having electrical conductivity, disposed on the substrate and corresponding to the third contact; and a key cap having a first surface and a second surface, the first surface The first bread portion Φ includes a first contact portion and a second contact portion and a third contact portion, and the first pressing portion corresponds to a first pressing portion, a second pressing portion and a third pressing portion. a first contact portion, the second pressing portion corresponding to the second contact portion, the third pressing portion corresponding to the third contact portion, the third contact portion structure abutting the elastic member, and the first contact portion, the first portion The second contact portion and the third contact portion are electrically coupled, 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, wherein When the pressing force is applied to the first pressing portion, the key cap is inclined toward the first contact Contacting the first contact portion with the first contact, so that the first contact is electrically coupled to the third contact by the third contact portion and the elastic member, and the pressing force is applied to the second contact When the pressing portion is pressed, the key cap is inclined toward the second contact to make the second contact portion contact the second contact, so that the second contact is connected to the third contact by the third contact portion and the elastic member Electrically coupled. 2. The button structure of claim 1, wherein the substrate is a printed circuit board. 3. The button structure as claimed in claim 1, further comprising a coding unit, the coding unit handles the first contact, the second contact, and 0798-A21546TWF(N2); C06011; LEMON 13 1308768 The third contact, when the first contact is electrically connected to the third contact, the coding unit sends a first signal, and when the second contact is electrically connected to the third contact, the coding unit sends a Second signal. 4. The key structure of claim 1, wherein the elastic member has a hemispherical shape. A button structure, comprising: a substrate, comprising a first contact, a second contact, and a third contact, wherein the first contact, the second contact, and the third contact are electrically conductive; An elastic member is electrically conductive, disposed on the substrate and corresponding to the third contact; and a key cap comprising: a first surface and a second surface; a first pressing portion and a second pressing portion And a third pressing portion disposed on the first surface; a swinging arm having electrical conductivity and disposed on the second surface, the swinging arm having a first contact portion, a second contact portion and a third contact a first pressing portion corresponding to the first contact portion, the second pressing portion corresponding to the second contact portion, the third pressing portion corresponding to the third contact portion, the third contact portion abutting the elastic member; Wherein, when a pressing force is applied to the first pressing portion, the key cap is inclined toward the first contact to make the first contact contact the first contact, so that the first contact is contacted by the third contact And the elastic member is electrically coupled to the third contact, when the pressing force is applied to the When the pressing portion is pressed, the key cap is inclined toward the second contact so that the second contact portion contacts the second contact, so that the second connection 0798-A21546TWF(N2); C06011; LEMON 14 1308768 points by the The third contact portion and the elastic member are electrically coupled to the third contact. 6. The button structure of claim 5, further comprising a coding unit, wherein the coding unit engages the first contact, the second contact, and the third contact, when the first contact When the third contact is turned on, the coding unit sends a first signal, and when the second contact is turned on, the coding unit sends a second signal. 7. The key structure of claim 5, wherein the elastic member is hemispherical in shape. Φ 8. A button structure, comprising: a substrate, comprising 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 are electrically conductive; an elastic member having electrical conductivity, disposed on the substrate and corresponding to the third contact; and a keycap having a first face and a first The first surface includes a first pressing portion, a second pressing portion, a third pressing portion and a fourth pressing portion. The second surface includes a first contact portion and a second contact portion. a third contact portion corresponding to the first contact portion, the second pressing portion corresponding to the second contact portion, the third pressing portion corresponding to the third contact portion, the fourth portion The pressing portion corresponds to the fourth contact portion, the third contact portion structure abuts the elastic member, and the first contact portion, the second contact portion and the third contact portion are electrically conductive, and the first contact portion, The second contact portion and the fourth contact portion are respectively electrically coupled to the third contact portion, wherein, when When pressing between the first pressing portion and the second pressing portion, the key cap is inclined toward the 0798-A21546TWF (N2); C06011; LEMON 15 1308768 first contact and the second contact to make the first contact The second contact portion and the second contact portion respectively contact the first contact and the second contact, and the first contact and the second contact are simultaneously connected to the third contact by the third contact portion and the elastic member Electrically coupled; when pressing between the second pressing portion and the fourth pressing portion, the key cap is inclined toward the second contact and the fourth contact to make the second contact portion and the fourth contact The second contact and the fourth contact are respectively electrically connected to the third contact by the third contact portion and the elastic member. Φ 9. The button structure of claim 8, further comprising a coding unit coupled to the first contact, the second contact, the third contact, and the fourth contact When the first contact, the second contact, and the third contact are turned on, the coding unit sends a first signal, and when the second contact, the fourth contact, and the third contact are turned on The coding unit sends a second signal. 10. A button structure, comprising: a substrate, including a first contact, a second contact, a third contact, and a fourth contact, the first contact, the second contact, The third contact and the fourth contact are electrically conductive; an elastic member having electrical conductivity, disposed on the substrate and corresponding to the third contact; and a key cap comprising: a first surface and a second pressing portion, a second pressing portion, a third pressing portion and a fourth pressing portion are disposed on the first surface; 0798-A21546TWF(N2); C06011; LEMON 16 1308768 The arm is electrically conductive and disposed 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. a second pressing portion corresponding to the second contact portion corresponding to the third contact portion, the fourth pressing portion corresponding to the fourth contact portion, the third contact portion structure abutting the elastic member, Wherein, when the first pressing portion and the second pressing portion are pressed, the key cap faces the first The first contact portion and the second contact portion respectively contact the first contact portion and the second contact point, and the first contact and the second contact point are respectively tilted The third contact portion and the elastic member are simultaneously electrically coupled to the third contact; when the second pressing portion and the fourth pressing portion are pressed, the key cap faces the second contact and the The fourth contact is inclined such that the second contact portion and the fourth contact portion respectively contact the second contact and the fourth contact, and the second contact and the fourth contact are caused by the third contact portion And the elastic member is electrically coupled to the third contact at the same time. 11. Applying the button structure described in item 10 of the patent scope, further including a code early element 'the code is consumed by the early element §Xuandi·one contact, the brother-contact, the §hai•the third contact and the a fourth contact, when the first contact, the second contact, and the third contact are turned on, the coding unit sends a first signal, when the second contact, the fourth contact, and the first When the three contacts are turned on, the coding unit sends a second signal. 0798-A21546TWF(N2); C06011 ;LEMON 17