200535884 九、發明說明： 【發明所屬之技術領域】 本發明關於適用於行動電話等電子設備中的開關裝置、 作為該開關裝置的可動接點等的點按（click)彈簧以及附棘 爪簧的薄片。 【先前技術】 在订動電話的操作面板上配置有多個撥號鍵、功能鍵 等，藉由使用者有選擇地按壓操作這些鍵，而使内部的開 鲁 關裝置接通。該開關裝置具有被設在絕緣基板上的固定接 點、和被稱爲棘爪簧的圓頂狀可動接點，可動接點被設置 在絕緣基板上並與固定接點相對。而且，在不從鍵對可動 接點她加按壓力時，可動接點由於自我的復原力從固定接 點離開而維持斷開狀態，在從鍵對可動接點施加按壓力 時，由於該按壓力使可動接點挫曲、翻轉並伴隨有點擊感， 而可動接點與固定接點接觸形成接通狀態。 如上所述，在這種開關裝置中，藉由可動接點反復伴隨 * 外部施加的按壓力産生翻轉動作和隨著該按壓力除去産生 的自我復原動作，而該可動接點與固定接點接觸分離、進 行接點的切換動作，因此，以前，作爲可動接點的材料使 用不銹鋼或磷青銅等彈簧特性優越的金屬薄板（例如，參照 專利文獻1)。這裏，磷青銅由於與不銹鋼相比機械強度相 當差，所以，在用於如行動電話那樣要求許多次的敲鍵壽 命次數的電子設備的情況下，一般將不銹鋼作為可動接點 的材料。 99123.doc 200535884 專利文獻！：特開2〇01-160334號公報（第^頁、圖3) 八：是，作為可動接點的材料的不錄鋼，根據其組成主要 …鐵素體系不錄鋼、馬氏體系不銹鋼及奥氏體系不錄 :广其中’作爲非磁性不錄鋼已知有奥氏體系不錄鋼， 廣泛使用在上述的行動電話等的開關裝置。但是，在將 奥氏體系不錄鋼冷軋加工成圓頂狀而形成可動接點後，本 ^月人等測定了該可動接點的相對磁導率⑻，結果發現可 動接點的相對磁導率Α彳〇 ^ μ ^ 净手為05以上就會帶磁性。估計這是因 二:精由冷軋加工原材料而奥氏體相的一部分或幾乎全部 轉變爲馬氏體相。 如此’因爲由現有的不㈣形成的可動接點爲磁性體， 所以，在組入開關裝置中之前的保管或輸送等時易被磁 化’例如，會給組入時的真空吸附帶來阻礙、或者在組入 後吸附金屬粉損害接點可靠性。尤其，在内建了地磁感測 盗的帶電子羅盤的行動電話中，由於組入開關裝置中的可 純點，磁性影響，會產生磁感測器不能正確檢測周圍磁 二的門題此外必需說明的是’如此的問題並不僅限於將 圓頂狀棘爪簧作為可動接點的開關襞置中，其同樣會發生 在將棘爪耳僅作為產生點擊感的部件的開關裝置、亦即於 隔著隔膜而相對的一對薄膜上形成可動接點與固定接點而 構成的薄膜開關’並在該薄膜開關的上部薄膜 簧而構成的開關裝置上。 【發明内容】 本t月係鑒於如此先前技術的現狀而做出的，其目的在 99123.doc 200535884 於提供-種組裝作業簡單且接點可靠性高的棘爪菁以及 附棘爪簧的薄片。其另-目的在於提供-種不會對内建 於電子設備巾的地磁感❹帶來不良磁性影響的 置。 爲了實現上述目的，本發明的棘爪簧’係可伴隨來自外 部的㈣力而進行翻轉動作，且可伴隨該按壓力的除去而 進行自我復原動作，該棘爪簧係藉由不錢鋼鋼材成形為圓 頂狀而成者，且其相對磁導率爲101以下，尤其是使用jjs 規袼的SUS305的不銹鋼鋼材形成棘爪簧。 如此構成的棘爪簧，在組入開關U中之前的保管或輸 送等時不會被磁化，因此，組裝作業簡單，在組入開關裝 置中後不會因棘爪簧吸附金屬粉而損害接點可靠性。 另外，本發明的附棘爪簧的薄片，其構成爲··具有黏接 薄片、棘爪簧、及非磁性剝離薄片，上述黏接薄片具有由 非磁性薄膜構成的薄片部與被設在該薄片部下面的黏合 劑，上述棘爪簧的上面被黏貼在上述黏合劑上，上述剝離 薄片被黏貼在上述黏接薄片上。 根據如此構成的附棘爪簧的薄片，由於組入開關裝置中 之前，將黏接薄片、棘爪簧及剝離薄片形成一體而成的薄 片整體為非磁性，所以在保管或輸送等時能夠可靠防止棘 爪簧被磁化，並且，在組入開關裝置中時藉由去除剝離薄 片，而能夠簡單組入黏接薄片與棘爪簧。 此外，本發明的開關裝置，包括具有固定接點的絕緣基 板、及對於上述固定接點可進行接觸分離的圓頂狀可動接 99123.doc 200535884 點，並以相對磁導率爲丨·0丨以下的不銹鋼鋼材形成上 動接點。 / ^可 根據如此構成的開關裝置，由於以非磁性的不銹鋼鋼材 形成可動接點，所以可動接點不會給裝配其的設備帶來不 良磁性影響，在可動接點上不會吸附金屬粉，而能夠防止 損害接點可靠性的問題。 在上述的構成中，較佳為：上述可動接點由JIS規袼的 SUS305形成，尤其是若還具有可檢測地磁的地磁感測器， 且該地磁感測器被配置在上述絕緣基板上或接近該絕緣基 板的下方，則能夠實現可防止由於可動接點的磁性影響而 使地磁感測器誤動作的附電子羅盤的行動電話，因此較 佳。另夕卜，較#為：訂述可動接點酉己置在上述絕緣基^ 上，亚且以由絕緣薄膜構成的上部薄片覆蓋該可動接點。 發明之效果 本發明的棘爪簧’由於藉由不銹鋼鋼材成形成圓頂狀而 成，且相對磁導率爲！·〇!以下，所以，在組入開關裝置中 之前的保管或輸送等時不易被磁化，而組裝作業簡單，在 組入開關裝置中後也不會因棘爪簧吸附金屬粉而損害接點 可靠性。 另外，本發明的附棘爪簧的薄片，由於具有黏接薄片、 棘爪簧、和非磁性剝離薄片，黏接薄片具有由非磁性薄膜 構成的薄片部與被設在㈣片部的下面的黏合劑，棘爪菁 的上面被黏貼在黏合劑上’上述剝離薄片被黏貼在黏接薄 片上’在組入開關裝置中之前’將黏接薄片、棘水菁及剝 99123.doc 200535884 離薄片形成一 而；Ί — 管或輸送等時磁性的，因此，在保 罪防止棘爪黃被磁化，並且， 開關裝置中時藉由本W立丨私β 牡、，且入 片與棘爪菁。除剝離薄片，而能夠簡單組入黏接薄200535884 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a switch device suitable for use in an electronic device such as a mobile phone, a click spring as a movable contact of the switch device, and a click spring with a detent spring. Flakes. [Prior art] A plurality of dial keys, function keys, and the like are arranged on the operation panel of the subscription telephone, and the user selectively presses and operates these keys to turn on the internal switch device. This switching device has a fixed contact provided on an insulating substrate and a dome-shaped movable contact called a detent spring. The movable contact is provided on the insulating substrate and faces the fixed contact. Furthermore, when the pressing force is not applied to the movable contact by the key, the movable contact is kept away from the fixed contact due to the self-restoring force. When the pressing force is applied to the movable contact by the key, the pressing The pressure causes the movable contact to buckle, flip, and is accompanied by a click feeling, and the movable contact comes into contact with the fixed contact to form an on state. As described above, in such a switching device, a movable contact is repeatedly accompanied by an externally applied pressing force to generate a reversing action and a self-recovering action caused by the pressing force being removed, and the movable contact is in contact with a fixed contact. Since the contacts are separated and switched, a thin metal plate with excellent spring characteristics such as stainless steel or phosphor bronze has been used as a material of the movable contact (see, for example, Patent Document 1). Here, since phosphor bronze has relatively poor mechanical strength as compared with stainless steel, stainless steel is generally used as a material of a movable contact when it is used in an electronic device that requires many keystrokes, such as a mobile phone. 99123.doc 200535884 Patent Literature! : Japanese Unexamined Patent Publication No. 2001-160334 (page ^, Figure 3) Eight: Yes, non-recording steel as a material of movable contact is mainly composed of ferritic non-recording steel, martensitic stainless steel, and Austenitic system non-recording: widely known as non-magnetic non-recording steel, austenitic non-recording steel is known, and it is widely used in the above-mentioned switching devices such as mobile phones. However, after austenitic stainless steel was cold-rolled into a dome shape to form a movable contact, Motoori et al. Measured the relative permeability ⑻ of the movable contact, and found that the relative magnetism of the movable contact The conductivity A 彳 〇 ^ μ ^ will be magnetic when the net hand is above 05. It is estimated that this is due to two reasons: a part or almost all of the austenite phase is transformed from the cold-rolled raw material to the martensite phase. In this way, “the existing movable contact formed by the conventional sintered body is a magnetic body, so it is easily magnetized during storage or transportation before being incorporated in the switchgear”, for example, it may hinder vacuum adsorption during assembly, Or it can damage the reliability of the contact by absorbing metal powder after assembly. In particular, in a mobile phone with an electronic compass that has built-in geomagnetic sensing theft, due to the pure points incorporated in the switch device, magnetic effects will cause the problem that the magnetic sensor cannot correctly detect the surrounding magnetic two. It is explained that 'this kind of problem is not limited to the setting of a switch with a dome-shaped detent spring as a movable contact, and it also occurs in a switch device that uses the detent pawl only as a component that generates a click feeling, namely, A pair of membranes facing each other across the diaphragm is formed with a membrane switch composed of a movable contact and a fixed contact, and a switch device composed of an upper membrane spring of the membrane switch. [Summary of the Invention] This month was made in view of the status quo of the prior art, and its purpose is to provide 99123.doc 200535884-a kind of detent cyanine with simple assembly operation and high contact reliability, and a sheet with detent spring . Another purpose is to provide a device that does not adversely affect the geomagnetic inductance built into electronic equipment towels. In order to achieve the above object, the pawl spring system of the present invention can perform a reversing operation in response to a pressing force from the outside, and can perform a self-recovery operation with the removal of the pressing force. It is formed into a dome shape and has a relative permeability of 101 or less. In particular, a stainless steel made of SUS305, a jjs gauge, is used to form a detent spring. The detent spring structured in this way is not magnetized during storage or transportation before being incorporated in the switch U. Therefore, the assembly operation is simple, and the assembly is not damaged by the detent spring attracting metal powder after being incorporated in the switch device. Point reliability. In addition, the sheet with a pawl spring according to the present invention is configured to include an adhesive sheet, a pawl spring, and a non-magnetic peeling sheet. The adhesive sheet has a sheet portion made of a non-magnetic film and is provided on the sheet. For the adhesive under the sheet portion, the upper surface of the detent spring is adhered to the adhesive, and the release sheet is adhered to the adhesive sheet. According to the thus-constructed sheet with a detent spring, since the entire sheet of the adhesive sheet, the detent spring and the release sheet is integrated before being incorporated into the switch device, the entire sheet is non-magnetic, so it can be reliably stored or transported. The detent spring is prevented from being magnetized, and the adhesive sheet and the detent spring can be simply assembled by removing the peeling sheet when incorporated in the switch device. In addition, the switch device of the present invention includes an insulating substrate having fixed contacts, and a dome-shaped movable contact 99123.doc 200535884 points capable of contacting and separating the fixed contacts, and has a relative magnetic permeability of 丨 · 0 丨The following stainless steel materials form the upper contact. / ^ According to the switch device constructed in this way, since the non-magnetic stainless steel is used to form the movable contact, the movable contact will not cause adverse magnetic effects on the equipment that is assembled with it, and metal powder will not be adsorbed on the movable contact. This can prevent problems that impair the reliability of the contacts. In the above configuration, it is preferable that the movable contact is formed of JIS-compliant SUS305, and particularly if a geomagnetic sensor capable of detecting geomagnetism is also provided, and the geomagnetic sensor is arranged on the insulating substrate or Close to the bottom of the insulating substrate, a mobile phone with an electronic compass capable of preventing the geomagnetic sensor from malfunctioning due to the magnetic influence of the movable contact is preferable. In addition, compared with #, it is stated that the movable contact is placed on the above-mentioned insulating substrate, and the movable contact is covered with an upper sheet made of an insulating film. Effects of the Invention The detent spring of the present invention is formed by forming a dome shape from a stainless steel material, and has a relative magnetic permeability! 〇! Below, it is not easy to be magnetized during storage or transportation before being incorporated into the switchgear, and the assembly operation is simple. After being incorporated into the switchgear, the contacts will not be damaged by the detent spring attracting metal powder. reliability. In addition, since the detent-claw-attached sheet of the present invention includes an adhesive sheet, a detent spring, and a non-magnetic release sheet, the adhesive sheet has a sheet portion made of a non-magnetic film and Adhesive, the top of Acanthopanax is adhered to the adhesive. 'The above-mentioned release sheet is adhered to the adhesive sheet. It is formed together; Ί — tube or transport is magnetic at the same time, so the pawl yellow is prevented from being magnetized during the indemnity, and the switch device is opened by the private β 牡, and the film and the pawl cyanine. In addition to the release sheet, it can be easily incorporated into an adhesive sheet
=，本發明的_裝置，由於包括具有固定接點的絕 緣基板、和相對固定接點可接觸分離的圓頂狀的可動接 點’並由相對磁導率爲101以下的不錄鋼鋼材形成上述可 動接點，因此，可動接點不會給裝配其的設備帶來不良磁 性影響’能夠防止因可動接點上吸附金屬粉而損害接點 靠性。 【實施方式】 以下，參照圖式對本發明的實施形式進行說明。圖丨係本 發明的第1實施例的開關裝置的分解立體圖，圖2係該開關 裝置的要部剖面圖，圖3係顯示用在該開關裝置的附可動接 點的薄片的製造工序的說明圖，圖4係該附可動接點的薄片 的俯視圖。 如圖1所示，本實施例的開關裝置，包括：具有多個固定 接點1的電路基板2、設置該電路基板2上的多個可動接點 3、保持各可動接點3的黏接薄片4，該黏接薄片4由層疊結 構的表面薄片5和隔片6構成。此外，該開關裝置被配置在 附電子羅盤的行動電話的未圖示的外殼内，在該外殼的操 作面板上配置有與各可動接點3對應的多個操作鍵（未圖 示）。 電路基板2由摻入玻璃的環氧樹脂或苯酚樹脂等非磁性 99123.doc -10- 200535884 、巴緣基板構成’在该電路基板2上由銅箔等非磁性導電材料 形成有多個固定接點〗及未圖示的佈線圖形。各固定接點1 由環狀的周邊固定接fila與位於該周邊固定接點^的中央 的中央固定接點113構成，這些周邊固定接點與中央固定 接點lb經由上述佈線圖形而與未圖示的控制電路部相連 接1另外，在電路基板2上裝配有位於各固定接點丨附近的 地磁感測器7’藉由該地磁感測器檢測出周圍的磁場而可識 另’“丁動電活所朝向的方向。其中所需說明的是，在本實施 方式中，地磁感測器7裝配在與各固定接點丨呈同一面的電 路基板2上，但，也能以層疊狀態配置在電路基板2的下面 或下方。 可動接點3係被成形爲圓頂狀的棘爪簧，如圖2所示，可 動接點3的周緣部始終與固定接點1的周邊固定接點i a接 觸可動接點3的中央部存在規定間隔地與中央固定接點1匕 相對。該可動接點3係藉由冷軋以JIS規格（日本工業規格） •的SUS3〇5(概略組成爲18Cr_12Ni-〇_ic)爲原材料的金屬薄 板而形成的，在測定了冷軋加工後的可動接點3的相對磁導 率（使用電子磁性工業（株）制的Lp_14卜千分尺）後，發現可 動接點3的相對磁導率爲1.01以下（平均實測值i.oop)。其 中所需說明的是，關於所述測定，按照與現有的可動接點 的相對磁導率測定相同的條件的方式，呈俯視十字狀排列5 個可動接點，測定其交叉點即中央的可動接點處的相對磁 導率。 表面薄片5由聚酯樹脂等非磁性絕緣薄膜構成，其整個下 99123.doc 200535884 面塗布著黏合劑。隔片6也由聚酯樹脂等非磁性絕緣薄膜構 成’該隔片6隔著黏合劑層疊在表面薄片5的下面而呈一 體。在隔片6上形成有通孔6a，藉由將配置在該通孔以内的 可動接點3的上面黏貼在表面薄片5的下面的黏合劑上，而 各可動接點3、表面薄片5及隔片6呈一體化。而且，藉由塗 布在隔片6的整個下面的黏合劑而將黏接薄片4黏貼在電路 基板2上，而將各可動接點3相對於相應的固定接點丨進行定=, The _ device of the present invention includes an insulating substrate having a fixed contact point, and a dome-shaped movable contact point that can be contacted and separated from the fixed contact point, and is formed of a non-recording steel material having a relative magnetic permeability of 101 or less. The movable contact mentioned above, therefore, the movable contact will not cause adverse magnetic influence on the equipment to which it is assembled, and can prevent the contact reliability from being impaired due to the adsorption of metal powder on the movable contact. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 丨 is an exploded perspective view of a switch device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part of the switch device, and FIG. 3 is a diagram illustrating a manufacturing process of a sheet with a movable contact used in the switch device FIG. 4 is a plan view of the sheet with the movable contact. As shown in FIG. 1, the switch device of this embodiment includes a circuit substrate 2 having a plurality of fixed contacts 1, a plurality of movable contacts 3 provided on the circuit substrate 2, and the adhesion of each movable contact 3 is maintained. The sheet 4 is composed of a surface sheet 5 and a separator 6 having a laminated structure. The switch device is arranged in a case (not shown) of a mobile phone with an electronic compass, and a plurality of operation keys (not shown) corresponding to the movable contacts 3 are arranged on an operation panel of the case. The circuit board 2 is made of non-magnetic 99123.doc -10- 200535884, glass edge-doped non-magnetic epoxy resin or phenol resin. The circuit board 2 is formed of a plurality of fixed connections made of a non-magnetic conductive material such as copper foil. Click and the unillustrated wiring pattern. Each fixed contact 1 is composed of a ring-shaped peripheral fixed contact fila and a central fixed contact 113 located at the center of the peripheral fixed contact ^. These peripheral fixed contacts and the central fixed contact 1b are not shown in the figure through the above wiring pattern. The control circuit shown in the figure is connected to each other. In addition, a geomagnetic sensor 7 'located near each of the fixed contacts 丨 is mounted on the circuit board 2. The geomagnetic sensor detects the surrounding magnetic field and recognizes another "" 丁The direction of the electromotive activity. It should be noted that in this embodiment, the geomagnetic sensor 7 is mounted on the circuit board 2 on the same surface as the fixed contacts 丨, but it can also be stacked. It is arranged below or below the circuit board 2. The movable contact 3 is a dome-shaped detent spring, and as shown in FIG. 2, the peripheral portion of the movable contact 3 is always fixed to the periphery of the fixed contact 1. The center of the ia contact movable contact 3 is opposed to the central fixed contact 1 at a predetermined interval. The movable contact 3 is cold rolled in accordance with JIS standard (Japanese industrial standard) • SUS305 (the approximate composition is 18Cr_12Ni). -〇_ic) is a thin metal material The relative permeability of the movable contact 3 after cold rolling was measured (using the Lp_14 bu micrometer manufactured by Electronic Magnetic Industry Co., Ltd.), and the relative permeability of the movable contact 3 was found to be 1.01. The following (average measured value i.oop). It should be noted that, regarding the measurement, the five movable contacts are arranged in a cross shape in a plan view under the same conditions as the relative permeability measurement of a conventional movable contact. Point, and measure the relative magnetic permeability at the intersection, that is, the movable contact in the center. The surface sheet 5 is made of a non-magnetic insulating film such as polyester resin, and the entire lower surface is coated with an adhesive. The spacer 6 is also It is composed of a non-magnetic insulating film such as a polyester resin. The separator 6 is laminated on the underside of the surface sheet 5 with an adhesive therebetween. The separator 6 has a through hole 6a formed therein, and is disposed within the through hole. The upper surface of the movable contact 3 is adhered to the adhesive on the lower surface of the surface sheet 5, and each of the movable contact 3, the surface sheet 5, and the spacer 6 are integrated. Furthermore, by coating the entire lower surface of the spacer 6, Adhesive sheet 4 Attached to the circuit board 2, and each of the movable contact 3 will be given with respect to the corresponding fixed contacts Shu
位’並且’以表面薄片5覆蓋各可動接點3，從而，塵埃等 異物不會侵入接點部。 在製造如此的可動接點3與黏接薄片4的—胆〇_口吋，如圖_ 3 4所示首先，將隔片6黏貼在被環帶（h00p)供給的輸送 薄片8上，然後，藉由沖頭在隔片6與輸送薄片8上分別開敦 L孔6a 8a。其次，在隔片6上黏貼表面薄片5封閉通孔… 後，從輸送薄片8的下方將可動接點3插入通孔以、心内， 將該y動接點3的上面黏貼在表面薄片5的下面的黏合劑 上。最後，藉由在輸送薄片8的下面黏貼保護薄片9封閉通 孔8a，得到被黏貼在黏接薄片4(表面薄片5與隔片6)上並由 剝離薄片叫輸送薄片8與保護薄片9)覆蓋可動接點3的下面 的附可動接點的薄片U。此外，構成剝離薄片1〇的輸送薄 片8與保護薄片9由聚醋樹脂等非磁性絕緣薄臈構成，在將 可動接點3組入開關裝置中之前進行保管、輸送時，附 ^點的薄片U被纏繞在卷軸12上。而且，在組人_裝置 中時’只要從附可動接點的薄片"上去除剝 缚片8與保護薄片9)’則能夠簡翠且準確地將可動接 99123.doc 200535884 黏接薄片4組入電路基板2的規定位置上。 如此構成的開關裝置，在不從未圖示的操作鍵向可動接 點3施加按壓力時，可動接點3靠自我復原力從中央固定接 點ib離開，因此，周邊固定接fila與中央固定接㈣不相 導通而呈斷開狀態。另外，在從操作鍵向可動接點3施加按 壓力時，利用該按壓力使可動接點3挫曲翻轉並伴隨點擊 感，由於可動接點3與中央固定接點^接觸，所以周邊固定 接點la與中央固定接點lb經由可動接點3導通呈接通狀 悲。必需說明的是，也可以取代操作鍵利用使用者的手指 按壓操作可動接點3,這時，可以在表面薄片5上形成文字、 圖形等顯示部。 根據本實施例的開關裝置，因爲可動接點3由以SUS3〇5 爲原材料的非磁性的不銹鋼鋼材形成，所以在地磁感測器7 附近裝配可動接點3後不會給地磁感測器7帶來不良磁性影 響’能夠實現可防止地磁感測器7的誤動作的附電子羅盤的 • 行動電話。另外，由於在組入開關裝置中之前的可動接點3 不會吸附金屬粉，所以不會因吸附金屬粉而損害接點可靠 性’並且，由表面薄片5覆蓋組入開關裝置中後的可動接點 3，因此，從此點即可提高接點可靠性。 圖5係本發明的第2實施例的開關裝置的俯視圖，圖6係圖 5的沿VI-VI線的剖面圖，圖7係該開關裝置所具有的晶圓與 可動接點的俯視圖。 本實施例的開關裝置，係被裝配在行動電話或遊戲機等 電子設備内的印刷線路板上使用的單項的按鈕開關，其具 99123.doc -13- 200535884 有·内建可動接點12的晶圓13、被覆在該晶圓丨3的上面的 框體14、按壓操作可動接點12的驅動器15。晶圓13係藉由 在合成樹脂制的基座16上外部成型由SUS305等非磁性導 電材製成的中央固定接點1 7與一對周邊固定接點丨8構成 的，兩周邊固定接點18作爲端子18a向基座16的端面突出。 可動接點12也與第1實施例所述的可動接點3相同，該可動 接點12也以SUS305作爲原材料被冷軋加工成圓頂狀，測定 冷軋加工後的相對磁導率，爲以下。可動接點12被插 入基座16的凹部16a内進行定位，其周緣部始終與兩周邊固 定接點18相接觸的並且，中央部與中央固定接點17存在規 定間隔地相對。另外，凹部16a的上面被由聚酯樹脂等非磁 性絕緣薄膜製成的蓋片19所封閉，以便藉由該蓋片19來使 塵埃等異物不會進入接點部。 框體14係對SUS305等非磁性金屬平板進行衝壓加工而 成，其一體彎折形成有從其上面向斜下方突出的第丨彈性舌 片14a和從側面向内方呈梯形突出的第2彈性舌片i4b。框體 14利用彈百鎖等方式固定在晶圓13上，在框體μ的上面與 黏貼在基座16上的蓋片19之間配置驅動器。。該驅動器15 具有驅動部15a，該驅動部15a的前端被形成球狀，該驅動 部15a與框體14的第1彈性舌片14a相對。 $如此構成的按鈕開關中，在不按壓操作向晶圓13的側 方犬出的駆動器15時，由於可動接點12借助自我復原力從 Μ®定接點17分離，所以中央固定接點17與周邊固定接 點18不相導通而成爲斷開狀態。另-方面，在向晶圓13的 99123.doc 14 200535884 内方按壓操作驅動器丨5時，由於驅動部1 5a沿第1彈性舌片 14a向斜下方移動而按壓可動接點12的中央部，所以，該按 壓力使可動接點12挫曲、翻轉並伴隨有點擊感。結果，由 於可動接點12與中央固定接點117相接觸，所以中央固定接 點17與周邊固定接點18經由可動接點12相導通而成爲接通 狀態。另外’在除去了對驅動器丨5的按壓操作後，驅動器 15由於第1及第2彈性舌片14a、1仆的反彈力而回復到原來 位置’可動接點12也藉由自我復原力而從中央固定接點i 7 離開而再成爲斷開狀態。 本實施例的開關裝置（按鈕開關）也由於利用以SUS305爲 原材料的非磁性不銹鋼鋼材形成可動接點丨2，所以金屬粉 不會吸附在組入形狀裝置中之前的可動接點12上，能夠防 止因吸附金屬粉而損害接點可靠性的問題，並且，由於組 入開關裝置後的可動接點12被蓋片19所覆蓋，所以從這一 點說也能夠提高接點可靠性。另外，在將該開關裝置使用 於内建有地磁感測為的附電子羅盤的行動電話等電子設備 中時，月b夠防止可動接點12給地磁感測器帶來不良磁性影 響。 圖8係本發明的第3實施例的開關裝置的剖面圖，該開關 裝置具有薄膜開關20與棘爪簧21，棘爪簧21藉由由表面薄 片22與隔片23構成的黏接片24而被保持在薄膜開關2〇上。 薄膜開關20具有隔著隔膜25而一體層疊的上下一對薄膜 26、27，形成在這些上下一對薄膜％、27上的可動接點28 與固定接點29在隔膜25的通孔25a内以規定間隔相對。棘爪 99123.doc 200535884 簧2 1與第1實施例所述的可動接點3相同，黏接薄片24也與 第1實施例中所述的相同。即，該棘爪簧21，並不是其自我 成爲接點的可動接點，而間接的參預接點的切換動作，其 係以SUS3 05爲原材料冷軋加工成圓頂狀的部件，第1實施 例的可動接點3與第3實施例的棘爪簧21在結構上相同。 在如此構成的開關裝置中，在按壓力不施加於棘爪箬21 時’棘爪簧2 1借助自我復原力而維持拱形狀被保持在上部 薄膜26上，所以可動接點28與固定接點29相背離，薄膜開 關20成爲斷開狀態。另一方面，在由未圖示的操作鍵或使 用者的手指按壓棘爪簧21時，該按壓力使棘爪簧21挫曲翻 轉並伴隨點擊感，由翻轉的棘爪簧21使上部薄膜26向下方 彎曲。其結果，可動接點28與固定接點29接觸、薄膜開關 2〇成爲接通狀態。另外，在除去對棘爪簧21的上述按壓力 後，棘爪簧2 1借助自我的復原力而回復成圓頂狀，上部薄 膜26也自己復原使可動接點28從固定接點29離開，因此， 薄膜開關20再成爲斷開狀態。 在本實施例的開關裝置中，由以SUS305爲原材料的非磁 性的不銹鋼鋼材形成賦予點擊感的棘爪簧21，因此，即使 將忒開關裝置使用於内建有地磁感測器的附電子羅盤的行 動電話等電子設備中時，也能夠防止棘爪簧21給地磁感測 器帶來不良磁性影響。 【圖式簡單說明】 圖1係本發明的第丨實施例的開關裝置的分解立體圖。 圖2係該開關裝置的要部剖面圖。 99123.doc -16- 200535884 圖3係顯示用於該開關裝置的附可動接點的薄片製造 序的說明圖。 圖4係該附可動接點的薄片的俯視圖。 圖5係本务明的第2實施例的開關裝置的俯視圖。 圖6係圖5的沿VI-VI線的剖面圖。 圖7係用於該開關裝置的晶圓與可動接點的俯視圖。 圖8係本發明第3實施方式的開關裝置的剖面圖。 【主要元件符號說明】In addition, each movable contact 3 is covered with the surface sheet 5 so that foreign matter such as dust does not enter the contact portion. In manufacturing such a movable contact 3 and an adhesive sheet 4 as shown in FIG. 34, first, the spacer 6 is adhered to the conveying sheet 8 supplied by the endless belt (h00p), and then The L holes 6a and 8a are respectively formed on the spacer 6 and the conveying sheet 8 by a punch. Next, the surface sheet 5 is pasted on the spacer 6 to close the through-hole ... Then, the movable contact 3 is inserted into the through hole from below the conveying sheet 8, and the upper surface of the y-movable contact 3 is adhered to the surface sheet 5. On the underside of the adhesive. Finally, the through hole 8a is closed by attaching a protective sheet 9 under the conveying sheet 8 to obtain an adhesive sheet 4 (surface sheet 5 and spacer 6) which is adhered and called a conveying sheet 8 and a protective sheet 9 by a release sheet) A sheet U with a movable contact covering the lower surface of the movable contact 3. In addition, the transport sheet 8 and the protective sheet 9 constituting the release sheet 10 are made of a non-magnetic insulating sheet such as polyacetate resin. When the movable contact 3 is stored and transported before being incorporated into the switch device, the sheet is attached with a dot. U is wound on the reel 12. In addition, in the group_device, 'as long as the strip 8 and the protective sheet 9) are removed from the sheet with a movable contact', the movable sheet 99123.doc 200535884 can be adhered to the sheet 4 accurately and accurately. It is incorporated in a predetermined position of the circuit board 2. When the switch device configured in this manner does not apply a pressing force to the movable contact 3 from an operation key (not shown), the movable contact 3 is separated from the central fixed contact ib by a self-restoring force. Therefore, the peripheral fixed contact fila and the central fixed The contacts are not connected and are in an off state. In addition, when a pressing force is applied to the movable contact 3 from the operation key, the pressing force is used to cause the movable contact 3 to buckle and flip and accompany a click feeling. Since the movable contact 3 is in contact with the central fixed contact ^, the peripheral fixed contact is fixed. The connection between the point la and the central fixed contact lb via the movable contact 3 is a tragic state. It must be noted that instead of using the operation keys, the movable contact 3 may be operated by pressing by the user's finger. In this case, a display portion such as a character or a figure may be formed on the surface sheet 5. According to the switch device of this embodiment, since the movable contact 3 is formed of a non-magnetic stainless steel material using SUS305 as a raw material, the geomagnetic sensor 7 is not provided to the geomagnetic sensor 7 after the movable contact 3 is mounted near the geomagnetic sensor 7 Bring bad magnetic effects' • A mobile phone with an electronic compass capable of preventing malfunction of the geomagnetic sensor 7. In addition, since the movable contact 3 before being incorporated into the switchgear does not adsorb metal powder, the reliability of the contact will not be impaired due to the adsorption of the metal powder ', and the surface sheet 5 covers the movable after the assembly into the switchgear. Contact 3, therefore, contact reliability can be improved from this point. Fig. 5 is a plan view of a switch device according to a second embodiment of the present invention, Fig. 6 is a cross-sectional view taken along line VI-VI of Fig. 5, and Fig. 7 is a plan view of a wafer and a movable contact included in the switch device. The switch device of this embodiment is a single-button push-button switch used on a printed circuit board installed in an electronic device such as a mobile phone or a game machine. The switch device has 99123.doc -13- 200535884 with a built-in movable contact 12. The wafer 13, the frame 14 covering the upper surface of the wafer 3, and the driver 15 that presses the movable contact 12. The wafer 13 is formed by externally molding a central fixed contact 17 made of a non-magnetic conductive material such as SUS305 and a pair of peripheral fixed contacts 丨 8 on a base 16 made of synthetic resin. The two peripheral fixed contacts 18 projects as a terminal 18a toward the end face of the base 16. The movable contact 12 is also the same as the movable contact 3 described in the first embodiment. The movable contact 12 is also cold-rolled into a dome shape using SUS305 as a raw material. The relative magnetic permeability after cold-rolling is measured as the following. The movable contact 12 is inserted into the recessed portion 16a of the base 16 for positioning, and its peripheral edge portion is always in contact with both peripheral fixed contacts 18, and the central portion is opposed to the central fixed contact 17 at a predetermined interval. The upper surface of the recessed portion 16a is closed by a cover sheet 19 made of a non-magnetic insulating film such as a polyester resin so that foreign matter such as dust does not enter the contact portion by the cover sheet 19. The frame 14 is formed by punching a non-magnetic metal flat plate such as SUS305. The frame 14 integrally bends to form a second elastic tongue piece 14a protruding obliquely downward from the upper surface and a second elasticity protruding trapezoidally from the side. Tongue piece i4b. The frame 14 is fixed to the wafer 13 by a method such as a spring lock, and a driver is arranged between the upper surface of the frame μ and the cover sheet 19 adhered to the base 16. . The driver 15 includes a driving portion 15a, and a front end of the driving portion 15a is formed in a spherical shape. The driving portion 15a is opposed to the first elastic tongue piece 14a of the frame body 14. In the push-button switch configured as described above, when the actuator 15 that is pushed out to the side of the wafer 13 is not pressed, the movable contact 12 is separated from the M® fixed contact 17 by the self-restoring force, so the center fixed contact 17 is not connected to the peripheral fixed contact 18 and is turned off. On the other hand, when the operation driver 5 is pressed inside 99123.doc 14 200535884 of the wafer 13, the driving portion 15a moves obliquely downward along the first elastic tongue 14a, thereby pressing the central portion of the movable contact 12, Therefore, the pressing force causes the movable contact 12 to buckle, flip, and is accompanied by a click feeling. As a result, since the movable contact 12 is in contact with the central fixed contact 117, the central fixed contact 17 and the peripheral fixed contact 18 are connected to each other via the movable contact 12 to be turned on. In addition, "after removing the pressing operation on the driver 5, the driver 15 returns to its original position due to the rebound force of the first and second elastic tongues 14a and 1". The movable contact 12 is also driven by its self-resilience. The central fixed contact i 7 is left and is turned off again. The switch device (push-button switch) of this embodiment also uses non-magnetic stainless steel made of SUS305 as the movable contact 2. Therefore, metal powder will not be adsorbed on the movable contact 12 before being assembled into the shape device, which can Preventing the problem that the reliability of the contact is impaired due to the adsorption of the metal powder, and since the movable contact 12 after being incorporated into the switch device is covered by the cover sheet 19, the reliability of the contact can also be improved from this point. In addition, when the switch device is used in an electronic device such as a mobile phone with an electronic compass that has built-in geomagnetic sensing, the month b is sufficient to prevent the movable contact 12 from causing an adverse magnetic effect on the geomagnetic sensor. FIG. 8 is a cross-sectional view of a switch device according to a third embodiment of the present invention. The switch device includes a membrane switch 20 and a pawl spring 21. The pawl spring 21 has an adhesive sheet 24 composed of a surface sheet 22 and a spacer 23. It is held on the membrane switch 20. The membrane switch 20 has a pair of upper and lower membranes 26 and 27 that are integrally laminated with a diaphragm 25 interposed therebetween. A movable contact 28 and a fixed contact 29 formed on the upper and lower membranes 27 and 27 are disposed in the through hole 25 a of the diaphragm 25. The prescribed intervals are relative. Pawl 99123.doc 200535884 The spring 21 is the same as the movable contact 3 described in the first embodiment, and the adhesive sheet 24 is the same as that described in the first embodiment. In other words, the detent spring 21 is not a movable contact that becomes a contact itself, but an indirect reference switching operation. It is a cold-rolled dome-shaped member using SUS305 as a raw material. The first implementation The movable contact 3 of the example is structurally the same as the detent spring 21 of the third embodiment. In the switch device thus configured, when the pressing force is not applied to the pawl 箬 21, the 'pawl spring 21' is maintained on the upper film 26 by the self-restoring force, so the movable contact 28 and the fixed contact Phase 29 deviates, and the membrane switch 20 is turned off. On the other hand, when the pawl spring 21 is pressed by an operation key (not shown) or a user's finger, the pressing force causes the pawl spring 21 to buckle and flip, and with the click feeling, the upper film is caused by the flipped pawl spring 21. 26 bends downward. As a result, the movable contact 28 comes into contact with the fixed contact 29, and the membrane switch 20 is turned on. In addition, after the above-mentioned pressing force on the pawl spring 21 is removed, the pawl spring 21 is restored to a dome shape by its own restoring force, and the upper film 26 also restores itself to move the movable contact 28 from the fixed contact 29. Therefore, the membrane switch 20 is turned off again. In the switch device of the present embodiment, the click spring 21 is formed from a non-magnetic stainless steel material made of SUS305 as a raw material. Therefore, even if the 忒 switch device is used for an electronic compass with a built-in geomagnetic sensor In electronic devices such as mobile phones, it is also possible to prevent the detent spring 21 from adversely affecting the geomagnetic sensor. [Brief description of the drawings] FIG. 1 is an exploded perspective view of a switching device according to a first embodiment of the present invention. Fig. 2 is a sectional view of a main part of the switch device. 99123.doc -16- 200535884 FIG. 3 is an explanatory diagram showing a sheet manufacturing process with a movable contact for the switch device. FIG. 4 is a plan view of the sheet with the movable contact. Fig. 5 is a plan view of a switching device according to a second embodiment of the present invention. FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5. FIG. 7 is a plan view of a wafer and a movable contact used in the switching device. Fig. 8 is a sectional view of a switchgear according to a third embodiment of the present invention. [Description of main component symbols]
1 固定接點 la 周邊固定接點 lb 中央固定接點 2 電路基板 3、 12 可動接點 4、 24 黏接薄片 5 ^ 22 表面薄片 6、 23 隔片 6a 通孔 7 地磁感測器 8 輸送薄片 8a 通孔 9 保護薄片 10 剝離薄片 11 附可動接點的薄片 13 晶圓 99123.doc 200535884 14 框體 14a 第1彈性舌片 14b 第2彈性舌片 15 驅動器 15a 驅動部 16 基座 16a 17 181 fixed contact la peripheral fixed contact lb central fixed contact 2 circuit board 3, 12 movable contact 4, 24 adhesive sheet 5 ^ 22 surface sheet 6, 23 spacer 6a through hole 7 geomagnetic sensor 8 transport sheet 8a through hole 9 protective sheet 10 peeling sheet 11 sheet with movable contact 13 wafer 99123.doc 200535884 14 frame 14a first elastic tongue 14b second elastic tongue 15 driver 15a driver 16 base 16a 17 18
凹部 中央固定接點 周邊固定接點 18a 端子 19 蓋片 20 薄膜開關 21 棘爪簧 25 隔膜 25a 通孔Recessed central fixed contact Peripheral fixed contact 18a Terminal 19 Cover piece 20 Membrane switch 21 Pawl spring 25 Diaphragm 25a Through hole
26 27 薄膜 薄膜 28 可動接點 29 固定接點 99123.doc -18-26 27 film film 28 movable contact 29 fixed contact 99123.doc -18-