200830343 ^ 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種微動開關，尤其係關於可降低聲音之微動開關。 【先前技術】 於現今資訊化的時代，電腦等電子設備早已普及化，每戶家庭中 •幾乎都擁有一台以上的電腦，而滑氣負責連接電腦與使用者，其重要 性是無庸置疑的’因此，近年來有騎鼠裝置之改良等之發明數量更 是逐年上升。 無論是機械式滑鼠或是光學式滑鼠都具有左、右按鍵，當使用者 觸壓滑鼠左、右麟會觸發按鍵下方的微動開關而產线應的控制指 令。然而’在觸壓習知的微動開關時都會產生大的聲音，在某些情況 下’例如多人在同會議室中操作滑鼠，此微動開關所產生的聲音會造 成使用者的困擾。 日口 春 因此需要有一種低聲音的微動開關。 【發明内容】 種可降低操作聲音之微 本發明之目的在提供_種鶴開關，尤其係一 動開關。 於一較佳實施例中，本發明提出_種微動開關，包括 底座； 上盍，具有穿孔以及撞擊部； 5 200830343 共用端，設置於底座之一端並具有凸點； 常開端，設置於底座之另一端； 常閉端，設置於常開端之側邊； 彈片’彈片之-端與凸·點連接，而彈片之另—端與常閉端接觸；以及 …按壓件，包括按鍵部以及凸緣設置於按鍵部之周圍，其中，按鍵部係 穿過上蓋之穿孔而使凸緣與撞擊部接觸； 其中，撞擊部或按鍵部之凸緣係由吸震材料製成。 •.於—較佳實補中，共、常開端以及常閉端係由金屬製成。 於-較佳實施例中’吸震材料包括橡膠、石夕膠以及熱塑性彈性體 (Thermoplastic Rubber，TPR)。 【實施方式】 如上述習知技術所述，為了改善微動開關所產生之按鍵聲響，本發明 提出一種微動開關，可降低微動開關***作時所產生之聲音。 • 首先說明微動開關之結構，請參閱第—圖，其為習知微動開關之 結構側視圖。微動開關100包括底座1()1、按壓件11〇以及上蓋觀。 上蓋102具有一穿孔103。此外，微動開關1〇〇還包含以下的元件： 一共用端H)5設置於底座101之-端，且共用端1〇5上具有一凸點 1〇6。-常開端H)7被設置於底座101之另—端，且於常開端浙之側 邊設有-常閉端⑽。此外，-彈片1G9之—端與共用端奶之凸點 1〇6接觸，而其另-端則與常閉端108接觸。而按壓件ιι〇包括按鍵 部U1以及凸緣H2，且按壓件110之按鍵部lu穿過上蓋1〇2之穿 6 200830343 孔103而使位於按鍵部111周圍之凸緣m與上蓋102之撞擊部刚 接觸’其中凸緣112係用以防止按壓件11〇由穿孔1〇3中滑出。 微動開關1〇0主要係依靠彈片卿與共用端105、常開端1〇7以 及第閉端108之間的接觸狀態來產生開關訊號。彈片_之一端與共 用端105上之凸點106接觸’於未受力的狀態中（第一圖中的實線所示 之彈片109)，彈片應之另—端與常閉端議接觸而形成迴路給予 U動開關1GG-禁止㈣。當微域關⑽之按壓件⑽受到觸壓時， •按壓件110下壓彈片109,使彈片109離開常閉端⑽並與常開端107 賴如第-圖中的虛線所示之彈片赠），此時，共用端105透過彈片 109與¥開知107形成迴路’並產生一導通信號至微動開關刚。當按 壓件110受到之外力解除後，彈片1〇9不再受到按壓件11〇之下麼而 離開常開端107，並回到與常閉端1〇8接觸之狀態。 當按壓件110被觸壓時’ _壓件m向下移動而壓抵彈片刚而使 彈片109之-端與常開端1〇7接觸而形成迴路，並產生導通信號。而當按 [減件110的外力消失時，彈片1〇9的彈力將按壓件⑽彈回原來未受 力前的位置’而當按壓件110回復原位時，按壓件ιι〇的凸緣ιΐ2會撞擊 上蓋的撞擊部刚。本案發明人發現，習知微動開關刚之上蓋脱以及按 壓件110都是由硬質的塑膠製成，因此按壓件11〇之凸緣⑴與上蓋皿 之撞擊部104撞擊時會產生較大的聲音，這正是微動開關则之操作聲音 的主要來源。 請參閱第二_、（b)，其為本發明微動開關之上蓋與底座分離的示意 圖。微動開關200包括底座20卜上蓋202以及按壓件21〇，底座2〇1上設 7 200830343 有共用端205、常開端207、常閉端208以及彈片209。上蓋202具有穿孔 203’而穿孔203顯之二短邊4撞擊部2〇4。在本發明微動剩卿中， 共用端205設置被於底座2G1之-端，且共用端205具有凸點·。常開端 107設於底座101之另一端，而常閉端108位於常開端2〇7之側邊。彈片 209之一端連接於共用端205之凸點206,而其另一端與常閉端2〇8接觸。 按壓件210包括按鍵部211以及凸緣212,而凸緣212係設置於按鍵部211 之周圍，而按鍵部211係穿過上蓋202之穿孔203而使凸緣212與上蓋2〇2 之撞擊部204接觸，且按壓件211係與彈片209接觸。 共用端205、常開端207、常閉端208以及彈片209係用以形成迴路以 使微動開關200正常工作。本發明微動開關2〇〇的動作原理與習知相同， 故不再贅述。 基於以上所述之微動開關之操作聲音的來源分析，本發明為了降低操 作微動開關所產生的聲音，特別將撞擊部204或按壓件210上之凸緣212 之材質更換為吸震材質。 於一較佳實施例中，將撞擊部204以吸震材質來製作，例如··橡膠、 石夕膠以及熱塑性彈性體(Thermoplastic Rubber，TPR)等吸震材質，而其餘部 件，如上蓋202之撞擊部204以外的部份以及按壓件210整體，的材質維 持不變，也就是以塑膠製成。當微動開關2〇〇工作時，按壓件21〇之按鍵 部211通過上蓋202之穿孔203，而凸緣212與撞擊部204接觸撞擊，如第 三圖所示。由於撞擊部204係由吸震材質所製成，因此來自於該兩者撞擊 之衝擊力被撞擊部204所吸收，且撞擊部204之吸震材質係為軟質，故硬 質之凸緣212撞擊軟質之撞擊部204時’撞擊部204會將撞擊時產生之聲 8 200830343 音吸收而達到降低操作聲音之效果。其中，上蓋搬其它部份之材質與撞 擊部撕之材質不同’但可使用雙料射出技術(D〇ubieinjecti〇n)讓上蓋2〇2 以一體成型的方式產出。 而於另-較佳實施例中，本發明係將按壓件21G之凸緣212以吸震材 質製作。如此’當凸緣2〇4與撞擊部2〇4時撞擊時，按驗训之凸緣如 本身的吸震能力將能降低微動開關***作時所產生之聲音。當然，按 麼件210中的按鍵部綱與凸緣212之材質不同，但亦可使用雙料射出技 術(Double Injection)使按壓鍵21〇 —體成型而成。 當然，所謂吸震材質並不限於本實施例中所具體列舉之材質，凡藉由 改變按壓鍵凸緣或撞擊部材f來降低微動開關之操作聲音者皆屬本發明之 。以上所述僅為本創作之較佳實施例，並義以限定本㈣之申請專 利範圍’因此凡其它未麟本發麵揭示之精神下所完成之較改變或修 飾，均應包含於本案之申請專利範圍内。 200830343 【圖式簡單說明】 本案得藉由下列圖式及說明，俾得一更深入之了解： 第一圖係習知微動開關之結構側視圖。 第二圖(a)、（b)係本發明微動開關之上蓋與底座之分離示意圖。 第三圖係本發明微動開關之剖面示意圖。 【主要元件符號說明】 101、201 底座 103、203 穿孔 105、205 共用端 107、207 常開端 100、200 微動開關 102、202 上蓋 104、204 撞擊部 t 106、206 凸點200830343 ^ IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a micro switch, and more particularly to a micro switch capable of reducing sound. [Prior Art] In today's information age, computers and other electronic devices have long been popularized. Almost every household has more than one computer, and the importance of connecting the computer to the user is undoubted. 'Therefore, the number of inventions such as the improvement of the squirrel-like device has increased year by year. Both the mechanical mouse and the optical mouse have left and right buttons. When the user touches the mouse, the left and right buttons trigger the micro switch under the button and the control command for the production line. However, when a conventional micro switch is pressed, a large sound is generated. In some cases, for example, a plurality of people operate the mouse in the same conference room, and the sound generated by the micro switch causes a user's trouble. It is necessary to have a low-motion micro switch. SUMMARY OF THE INVENTION The object of the present invention is to reduce the number of operating sounds. The object of the present invention is to provide a crane switch, in particular a one-way switch. In a preferred embodiment, the present invention provides a micro switch including a base; an upper jaw having a perforation and an impact portion; 5 200830343 a common end disposed at one end of the base and having a bump; a normally open end disposed on the base The other end; the normally closed end is disposed on the side of the normally open end; the end of the shrapnel 'the shrapnel is connected with the convex point, and the other end of the shrapnel is in contact with the normally closed end; and the pressing member includes the button portion and the flange The button portion is disposed around the button portion, wherein the button portion passes through the through hole of the upper cover to contact the flange with the impact portion; wherein the flange of the impact portion or the button portion is made of a shock absorbing material. • In the case of better compensation, the common, normally open and normally closed ends are made of metal. In the preferred embodiment, the shock absorbing material comprises rubber, talc, and thermoplastic elastomer (TPR). [Embodiment] As described in the above-mentioned prior art, in order to improve the sound of the button generated by the micro switch, the present invention proposes a micro switch which can reduce the sound generated when the micro switch is operated. • First, explain the structure of the microswitch. Refer to the figure, which is a side view of the structure of the conventional microswitch. The micro switch 100 includes a base 1 (1), a pressing member 11A, and an upper cover. The upper cover 102 has a through hole 103. In addition, the micro switch 1A further includes the following components: a common terminal H) 5 is disposed at the end of the base 101, and the common terminal 1〇5 has a bump 1〇6. The normally open end H) 7 is disposed at the other end of the base 101, and is provided with a normally closed end (10) on the side of the normally open end. Further, the end of the - shrapnel 1G9 is in contact with the bump 1〇6 of the common end milk, and the other end is in contact with the normally closed end 108. The pressing member ιι includes the button portion U1 and the flange H2, and the button portion lu of the pressing member 110 passes through the hole 103 of the upper cover 1〇2 to penetrate the hole 103 around the button portion 111 and the upper cover 102. The portion just contacts 'where the flange 112 is used to prevent the pressing member 11 from slipping out of the perforation 1〇3. The micro switch 1〇0 mainly relies on the contact state between the spring piece and the common end 105, the normally open end 1〇7, and the closed end 108 to generate a switching signal. One end of the shrapnel_ is in contact with the bump 106 on the common end 105 in an unstressed state (the shrapnel 109 shown by the solid line in the first figure), and the shrapnel should be in contact with the normally closed end. The loop is formed to give the U-switch 1GG-disabled (4). When the pressing member (10) of the micro-domain (10) is pressed, the pressing member 110 presses the elastic piece 109 to cause the elastic piece 109 to leave the normally closed end (10) and is attached to the normally-opened end 107 as shown by the broken line in the first figure. At this time, the common terminal 105 forms a loop through the spring 109 and the opening 107 and generates a conduction signal to the micro switch. When the pressing member 110 is released by the external force, the elastic piece 1〇9 is no longer under the pressing member 11〇 and leaves the normally open end 107, and returns to the state of being in contact with the normally closed end 1〇8. When the pressing member 110 is pressed, the pressing member m is moved downward to press against the elastic piece so that the end of the elastic piece 109 comes into contact with the normally open end 1〇7 to form a loop, and an ON signal is generated. When pressing [the external force of the reducing member 110 disappears, the elastic force of the elastic piece 1〇9 bounces the pressing member (10) back to the position before the original unstressed force] and when the pressing member 110 returns to the original position, the flange ι 2 of the pressing member ιι Will hit the impact of the upper cover just. The inventor of the present invention found that the conventional micro switch just above the cover and the pressing member 110 are made of hard plastic, so that the flange (1) of the pressing member 11 has a large sound when it collides with the impact portion 104 of the upper cover. This is the main source of the operating sound of the microswitch. Please refer to the second _, (b), which is a schematic view of the upper cover of the micro switch of the present invention separated from the base. The micro switch 200 includes a base 20 and an upper cover 202 and a pressing member 21, and the base 2 is provided with a common end 205, a normally open end 207, a normally closed end 208, and a spring 209. The upper cover 202 has a perforation 203' and the perforation 203 has two short sides 4 striking portions 2〇4. In the micromotion of the present invention, the common terminal 205 is disposed at the end of the base 2G1, and the common terminal 205 has a bump. The normally open end 107 is provided at the other end of the base 101, and the normally closed end 108 is located at the side of the normally open end 2〇7. One end of the elastic piece 209 is connected to the bump 206 of the common end 205, and the other end thereof is in contact with the normally closed end 2〇8. The pressing member 210 includes a button portion 211 and a flange 212, and the flange 212 is disposed around the button portion 211, and the button portion 211 passes through the through hole 203 of the upper cover 202 to cause the impact portion of the flange 212 and the upper cover 2〇2. The contact 204 is in contact with the elastic piece 209. The common terminal 205, the normally open end 207, the normally closed end 208, and the shrapnel 209 are used to form a loop for the micro switch 200 to operate normally. The operation principle of the micro switch 2〇〇 of the present invention is the same as that of the prior art, and therefore will not be described again. Based on the source analysis of the operation sound of the micro switch described above, in order to reduce the sound generated by the operation of the micro switch, the present invention particularly replaces the material of the flange 212 on the impact portion 204 or the pressing member 210 with a shock absorbing material. In a preferred embodiment, the impact portion 204 is made of a shock absorbing material, such as rubber, stone, and thermoplastic elastomer (TPR), and the remaining components, such as the impact portion of the cover 202. The material other than 204 and the entire pressing member 210 are kept unchanged, that is, made of plastic. When the micro switch 2 is operated, the button portion 211 of the pressing member 21 is passed through the through hole 203 of the upper cover 202, and the flange 212 comes into contact with the striking portion 204 as shown in Fig. 3. Since the impact portion 204 is made of a shock absorbing material, the impact force from the impact of the two is absorbed by the impact portion 204, and the shock absorbing material of the impact portion 204 is soft, so the hard flange 212 hits the soft impact. At the time of the portion 204, the impact portion 204 absorbs the sound generated by the impact 8 200830343 to reduce the effect of the operation sound. Among them, the material of the other parts of the upper cover is different from the material of the tearing of the impact portion. However, the double cover technology (D〇ubieinjecti〇n) can be used to make the upper cover 2〇2 integrally formed. In still another preferred embodiment, the present invention produces the flange 212 of the pressing member 21G as a shock absorbing material. Thus, when the flange 2〇4 collides with the striking portion 2〇4, the flange of the training, such as its own shock absorbing ability, can reduce the sound generated when the microswitch is operated. Of course, the button portion of the member 210 is different from the material of the flange 212, but the press button 21 can also be formed by double injection molding. Of course, the shock absorbing material is not limited to the materials specifically enumerated in the embodiment, and any operation to reduce the operation sound of the micro switch by changing the pressing key flange or the impact member f is the present invention. The above description is only the preferred embodiment of the present invention, and is intended to limit the scope of the patent application of the above (4). Therefore, any changes or modifications made in the spirit of the other disclosures should be included in the case. Within the scope of the patent application. 200830343 [Simple description of the diagram] This case can be obtained through a more detailed understanding of the following drawings and descriptions: The first figure is a side view of the structure of the conventional micro switch. The second figures (a) and (b) are schematic diagrams showing the separation of the upper cover and the base of the micro switch of the present invention. The third figure is a schematic cross-sectional view of the micro switch of the present invention. [Main component symbol description] 101, 201 base 103, 203 perforation 105, 205 common end 107, 207 normally open end 100, 200 micro switch 102, 202 upper cover 104, 204 impact portion t 106, 206 bump
108、208 常閉端 110、210 按壓件 112、212 凸緣 109、209 彈片 111、211 按鍵部108, 208 normally closed end 110, 210 pressing member 112, 212 flange 109, 209 spring 111, 211 button