經濟部智慧財產局員工消費合作社印製 1221303 Α7 Β7 五、發明說明（1 ) [發明之所屬技術領域〕 本發明，係關於熱響應開關，特別是有關藉由雙金屬 片之熱響應使可動接點反轉將電源接點進行切換之開關構 造。 ί習知技術〕 熱響應開關，係設有由不同膨脹係數之金屬複數片貼 合所成熱響應素子（雙金屬片）做爲可動片的可動電極， 及組成與該可動電極同時長時關閉接點形電路之固定電級 ，並連接於電氣機器之電路來保護該電氣機器。 即，連接於電氣機器電路之熱響應開關，因是藉由雙 金屬片之彎曲反轉作用來開啓開關之構造，於該電氣機器 流入過大電流，或周圍溫度異常變高時，會切斷對電氣機 器之供電。然後，因藉由對電氣機器之供電切斷來降低周 圍溫度，雙金屬片會自動復位，使開關接點再度關閉而再 度供電，故在有效防止危險的同時可使電氣機器經常保持 在指定溫度範圍內進行起動。 習知做爲熱響應開關之構造，如第7圖及第8圖所示 者。第7圖爲熱響應開關之分解透視圖，第8圖爲熱響應 開關之剖面圖。 於圖中’威體1 1係爲以合成樹脂等絕緣材形成開口 朝上之相盒狀’於該威體1 1之內底面，隔著一'定間隔對 向配設有由導電性金屬所形成之固定接點1 2和固定端子 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------·---1--------訂--------- (請先閱讀背面之注意事項再填寫本頁) -4- 1221303 A7 B7 五、發明說明（2 ) (請先閱讀背面之注意事項再填寫本頁) 於上述固定端子1 3上，一端側懸臂狀固定著固定有 可動接點1 4之雙金屬片1 5，而上述可動接點1 4，係 對向配設成可接觸或離開上述固定接點1 2。又，於上述 雙金屬片1 5上，中央形成有圓罩狀之反轉部丨5 a ，該 反轉部1 5 a係形成爲對應著溫度之變化會反轉。 此外，上述雙金屬片1 5，係以點焊等方式固定在上 述固定端子1 3上，而該點焊之位置，係爲中介著上述反 轉部1 5 a與上述可動接點1 4對向之他端側上。 爲要覆蓋收納有上述雙金屬片15之殼體11開口部 ，安裝有板狀之外蓋1 6。 如此般地將上述雙金屬片1 5固定於上述固定端子 1 3上時，使用另準備之定位支架將固定有上述可動接點 1 4之上述雙金屬片1 5定位保持在指定位置狀態，再進 行雷射焊接組裝。 [發明欲解決之課題〕 經濟部智慧財產局員工消費合作社印製 然而，於上述習知熱響應開關之構造中，在將上述雙 金屬片1 5固定於上述固定端子1 3上時，爲了要使固定 於上述雙金屬片1 5 —端側之上述可動接點1 4和上述固 定接點1 2之安裝位置吻合，需要專用之定位支架，由於 使組裝工程變得煩雜，故有難以應對廉價之問題。 又，由於使用定位支架，需挾持上述雙金屬片1 5， 有使上述反轉部1 5 a造成變形之虞，故有上述雙金屬片 1 5之反轉動作不動作之問題。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -5- 1221303Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221303 Α7 Β7 V. Description of the Invention (1) [Technical Field to which the Invention belongs] The present invention relates to a thermally responsive switch, and in particular, to a movable connection by the thermal response of a bimetal Point reversing switch structure to switch power contacts. ί Known technology] The thermal response switch is provided with a movable electrode made of thermally responsive elements (bimetallic pieces) formed by laminating multiple pieces of metal with different expansion coefficients as a movable piece, and the composition is closed simultaneously with the movable electrode for a long time. The fixed level of the contact-shaped circuit is connected to the circuit of the electric machine to protect the electric machine. That is, the thermal response switch connected to the circuit of the electric device has the structure of turning on the switch by the bending and reversing action of the bimetal. When the electric device receives excessive current or the surrounding temperature becomes abnormally high, it will cut off the switch. Power supply for electrical machines. Then, because the ambient temperature is reduced by cutting off the power supply to the electrical equipment, the bimetal will automatically reset, so that the switch contacts are closed again to re-power, so the electrical equipment can be kept at the specified temperature while effectively preventing danger. Start within range. Known as the structure of the thermal response switch, as shown in Figure 7 and Figure 8. Figure 7 is an exploded perspective view of the thermally responsive switch, and Figure 8 is a cross-sectional view of the thermally responsive switch. In the figure, the "Wai body 1 1 is a phase box shape formed by insulating materials such as synthetic resin with openings facing upwards". On the inner bottom surface of the Wei body 1 1, a conductive metal is oppositely arranged at a fixed interval. Formed fixed contacts 1 2 and fixed terminals This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) -------- · --- 1 ------- -Order --------- (Please read the notes on the back before filling this page) -4- 1221303 A7 B7 V. Description of the invention (2) (Please read the notes on the back before filling this page) On the fixed terminal 13, a bimetal 15 fixed with a movable contact 14 is fixed in a cantilever shape at one end side, and the movable contact 14 is oppositely arranged so as to contact or leave the fixed contact. 1 2. In addition, a dome-shaped inverting portion 5 a is formed in the center of the bimetal sheet 15, and the inverting portion 15 a is formed so as to be inverted in response to a change in temperature. In addition, the bimetallic piece 15 is fixed to the fixed terminal 13 by spot welding or the like, and the position of the spot welding is through the above-mentioned reversing portion 15a and the movable contact 14 pair. Face him up. In order to cover the opening of the casing 11 in which the bimetal sheet 15 is housed, a plate-shaped outer cover 16 is attached. When the bimetal sheet 15 is fixed to the fixed terminal 13 in this way, the positioning of the bimetal sheet 15 with the movable contact 14 fixed to the specified position is performed by using a positioning bracket prepared separately, and then Perform laser welding assembly. [Problems to be Solved by the Invention] Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. However, in the structure of the conventional thermal response switch described above, when the bimetal 15 is fixed to the fixed terminal 13 in order to Matching the mounting position of the movable contact 14 and the fixed contact 12 to the end of the bimetal piece 15 and the fixed contact 12 requires a dedicated positioning bracket, which complicates the assembly process, making it difficult to cope with the low cost. Problem. In addition, since the positioning bracket is used, the bimetal sheet 15 needs to be held, which may cause deformation of the reversing part 15a. Therefore, the reversing operation of the bimetal sheet 15 does not work. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -5- 1221303
五、發明說明（3 ) (請先閱讀背面之注意事項再填寫本頁) 因此，爲解決上述問題，本發明之目的爲，提供一種 使用雙金屬片之熱響應開關之構造，在殼體內組入雙金屬 片時，雙金屬片可容易定位在固定端子上，同時於組入時 可防止雙金屬片之變形之構造。 :解決課題之手段〕 爲解決上述課題，本發明之第1解決手段爲，熱響應 開關係具備：殼體；配設於該殼體內底面之固定接點；與 該固定接點接近或離開之可動接點固定於一端，具有對應 溫度會反轉之反轉部的雙金屬片；及，將該雙金屬片之另 一端固定成懸臂狀之固定端子，其特徵爲於上述雙金屬片 上，形成有從上述固定端子之固定部延伸至與上述反轉部 形成位置相反側之延伸腕部的同時，於上述殼體上，形成 有卡合定位上述延伸腕部之卡合保持部。 經濟部智慧財產局員工消費合作社印製 又，第2解決手段之特徵爲，上述延伸腕部，係對稱 延伸設置在垂直於上述可動接點固定部與上述固定端子固 定部所連結之中心線方向且爲平面方向上，於該延伸腕部 之自由端形成有與上述卡合保持部卡合之卡合突出部。 另’第3解決手段之特徵爲，將上述上述卡合保持部 ’形成於上述殼體所設之溝部，使該溝部之內壁面和上述 卡合突出部互相卡合，將上述雙金屬片定位於上述固定端 子上。 又’第4解決手段之特徵爲，於上述延伸腕部中，形 成有將上述雙金屬片組入上述殼體內時進行挾持之彎曲片 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -6 - 1221303 B7五、發明說明（4 ) 經濟部智慧財產局員工消費合作社印製 :發明之實施形態〕 以下，將本發明之實施例表示於第1圖乃至第6圖。 ，第1圖爲取下外蓋之狀態下熱響應開關平面圖，第2圖 爲取下外蓋之狀態下熱響應開關剖面圖，第3圖爲配設有 固定接點及固定端子之殼體平面圖。第4圖爲配設有固定 接點及固定端子之殼體剖面圖，第5圖爲固定有可動接點 之狀態下雙金屬片平面圖’第6圖爲固定有可動接點之狀 態下雙金屬片之正視圖。 於圖中’殼體1，係以合成樹脂等絕緣材形成開口朝 上之箱盒狀。’於該殼體1之內底部，配設有後述端子， 該各端子之一端部係從上述殼體1兩側面之面側導出外面 。又，於上述殼體1內底部中央，設有從該內底部突出之 半球狀支撐突起部1 a。 此外，於上述殼體1之一端側，形成有長方形狀之溝 部1 b，於該溝部1 b，卡合定位有後述之雙金屬片5之 延伸腕部5 b。 第1端子2，係以黃銅等導電性金屬材形成平面狀。 於該第1端子2之一端側，設有平展於上述殼體1內底面 由小圓形平面所形成之固定接點3，而於該第1端子2之 另一端側，設有從上述殼體1側面部導出外面並連接其他 電氣機器電路等之連接端子部2 b。 又’於上述第1端子2，在上述固定接點3和上述連 (請先閱讀背面之注意事項再填寫本頁)V. Description of the invention (3) (Please read the precautions on the back before filling out this page) Therefore, in order to solve the above problems, the purpose of the present invention is to provide a structure of a thermally responsive switch using a bimetal sheet, which is assembled in the housing. When the bimetal sheet is inserted, the bimetal sheet can be easily positioned on the fixed terminal, and at the same time, it can prevent the deformation of the bimetal sheet when assembled. : Means for solving the problem] In order to solve the above-mentioned problem, the first means for solving the present invention is that the thermal response opening relationship includes: a housing; a fixed contact disposed on the inner bottom surface of the housing; and close to or away from the fixed contact. The movable contact is fixed at one end and has a bimetal sheet having a reversing part corresponding to a temperature reversal; and the other end of the bimetal sheet is fixed into a cantilever-shaped fixed terminal, which is characterized in that There is an engaging and holding portion for engaging and positioning the extending wrist portion at the same time as the extending arm portion extending from the fixing portion of the fixed terminal to the side opposite to the position where the reversing portion is formed. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The second solution is characterized in that the extended wrist portion is symmetrically extended perpendicular to the center line of the movable contact fixed portion and the fixed terminal fixed portion. In a planar direction, an engaging protrusion is formed at the free end of the extending wrist portion to be engaged with the engaging and retaining portion. Another feature of the "third solution means is that said engaging and holding portion" is formed in a groove portion provided in the housing, and the inner wall surface of the groove portion and the engaging protrusion portion are engaged with each other to position the bimetal piece. On the fixed terminal. The fourth solution is characterized in that the extended wrist is formed with a curved piece that is held when the bimetal sheet is assembled into the case. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -6-1221303 B7 V. Description of the invention (4) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs: Implementation Mode of the Invention] Hereinafter, embodiments of the present invention are shown in FIG. 1 to FIG. 6. Figure 1 is a plan view of the thermal response switch with the cover removed, Figure 2 is a sectional view of the thermal response switch with the cover removed, and Figure 3 is a housing with fixed contacts and fixed terminals Floor plan. Figure 4 is a cross-sectional view of the case with fixed contacts and fixed terminals, and Figure 5 is a plan view of the bimetal sheet in a state where the movable contact is fixed. Figure 6 is a bimetal in a state where the movable contact is fixed. The front view of the film. In the figure, the 'case 1' is formed in a box-like shape with an insulating material such as a synthetic resin and the opening facing upward. ′ A terminal to be described later is arranged in the bottom portion of the casing 1, and one end portion of each of the terminals is led out from the surface side of both side surfaces of the casing 1. Further, at the center of the inner bottom of the casing 1, a hemispherical support protrusion 1a protruding from the inner bottom is provided. In addition, a rectangular groove portion 1 b is formed on one end side of the casing 1, and an extended wrist portion 5 b of a bimetal 5 described later is engaged with the groove portion 1 b. The first terminal 2 is formed in a planar shape by a conductive metal material such as brass. On one end side of the first terminal 2, a fixed contact 3 formed by a small circular plane on the inner bottom surface of the housing 1 is provided, and on the other end side of the first terminal 2, a housing from the above-mentioned case is provided. The side portion of the body 1 leads to the outside and is connected to a connection terminal portion 2 b of another electric device circuit or the like. It ’s also connected to the first terminal 2, the fixed contact 3 and the above (please read the precautions on the back before filling this page)
AW ·11111 ΜΨ, 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221303AW · 11111 ΜΨ, this paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) 1221303
五、發明說明（5 ) 接端子2 b之間，在上述固定接點3附近設有大寬幅狀之 開口部2 c。該開口部2 c ’係形成在經過上述第1端子 2之長向中心線與上述固定接點3之中心線上’且’於上 述第1端子2之短向，上述開口部2 c形成比上述固定接 點3之外周寬幅還大。又，上述開口部2 c，係配合上述 固定接點3之外周而形成環周缺口狀。 此外，於上述第1端子2，在包括上述開口部2 c之 部份設有傾斜部2 d，中介著該傾斜部2 d形成連接於上 述固定接點3和上述連接端子部2 b。將上述第1端子2 安裝於上述殼體1時，乃將上述傾斜部2 d埋設在上述殼 體1內底部而進行安裝。 第2端子4，係以同樣之黃銅等導電性金屬材形成平 面狀。於該第2端子4之一端側’形成有用壓機等厚度偏 差所製成之突出部4 a，該突出部4 a係成爲固定後述雙 金屬片一端之焊接固定部。又，於該第2端子4之另一端 側，設有從上述殻體1側面部導出外面連接於其他電氣機 器電路等之連接端子部4 b。 又，於第2端子4，在固定後述金屬片之上述突出部 4 a和上述連接端子部4 b之間’於上述突出部4 a附近 設有大寬幅狀之開口部4 c。該開口部4 c ’係形成在經 過上述第2端子4長向中心線與上述突出部4 a之中心線 上，且，於上述第2端子4之短向’上述開口部4 c係形 成比上述突出部4 a之外周寬幅還大。又’上述開口部 4 c，係配合上述突出部4 a之外周而形成環周缺口狀。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) ---------訂---------· 經濟部智慧財產局員工消費合作社印製 -8 - 經濟部智慧財產局員工消費合作社印製 1221303 A7 ______ B7 五、發明說明（6 ) 此外，於上述第2端子4，在包括上述開口部4 c之 部份設有傾斜部4 d，中介著該傾斜部4 d形成連接於上 述突出部4 a和上述連接端子部4 b。將上述第2端子4 安裝於上述殼體1時，乃將上述傾斜部4 d埋設在上述殼 體1內底部而進行安裝。 如以上所述，藉由設置上述開口部2 c、4 c於上述 第1及第2端子2、4，在例如運送時或安裝時等，施加 外力於上述連接端子部2 b、4 b，即使對該連接端子部 2 b、4 b已施加有朝板厚方向彎曲等之應力，因藉由上 述開口邰2 c、4 c斷絕該應力，故可緩和後述雙金屬片 或可動接點，與之固定部或，上述固定接點3受外部應力 影響，可減少影響各接點部之位移，而獲得溫度特性安定 之熱響應開關。 又，於包括上述開口部2 c、4 c之部份設置傾斜部 2 d、4 d，由於是將該傾斜部2 d、4 d埋設安裝於上 述殼體1內底部，故可使上述第1及第2端子2、4之埋 設部份變長’因在上述殼體1之外形不變大，又可牢固固 定’固可應對小型化。此外，可防止於錫焊時所造成焊劑 殘渣侵入內部。 雙金屬片5，係由電阻高之材料所形成之高膨脹材， 及由電阻低之材料所形成之低膨脹材之2不同種熱膨脹率 之金屬材料積層接合成平板狀。於形成該雙金屬片5之自 由端的一端側，以電焊等方法固定有與上述固定接點3進 行接觸或離開之由銀氧化錫等所形成的可動接點6，另一 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁)5. Description of the invention (5) A large and wide opening 2c is provided between the connecting terminals 2b near the fixed contact 3. The opening 2 c is formed on the center line passing through the long center line of the first terminal 2 and the center line of the fixed contact 3, and is formed in the short direction of the first terminal 2. The width of the outer periphery of the fixed contact 3 is also large. In addition, the opening portion 2c is formed into a peripheral notch shape in accordance with the outer periphery of the fixed contact 3. Further, the first terminal 2 is provided with an inclined portion 2 d at a portion including the opening portion 2 c, and is connected to the fixed contact 3 and the connection terminal portion 2 b via the inclined portion 2 d. When the first terminal 2 is mounted on the casing 1, the inclined portion 2d is embedded in the bottom portion of the casing 1 and mounted. The second terminal 4 is formed in a flat shape by the same conductive metal material such as brass. On one end side of the second terminal 4, a protruding portion 4a made of a thickness deviation such as a press is formed. The protruding portion 4a is a welding fixing portion for fixing one end of a bimetal described later. Further, on the other end side of the second terminal 4, a connection terminal portion 4b is provided which is led out from the side surface portion of the case 1 and is connected to other electric equipment circuits or the like. Further, in the second terminal 4, a wide-opening portion 4c is provided near the protruding portion 4a between the protruding portion 4a and the connection terminal portion 4b to which a metal sheet described later is fixed. The opening portion 4 c ′ is formed on the center line passing through the long centerline of the second terminal 4 and the center of the protruding portion 4 a, and in the short direction of the second terminal 4, the opening portion 4 c is formed more than the above The width of the periphery of the protruding portion 4 a is large. Further, the opening portion 4c is formed into a peripheral notch shape in accordance with the outer periphery of the protruding portion 4a. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) --------- Order -------- -· Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-8-Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221303 A7 ______ B7 V. Description of the Invention (6) In addition, the second terminal 4 above includes the opening A portion 4 c is provided with an inclined portion 4 d, and is connected to the protruding portion 4 a and the connection terminal portion 4 b via the inclined portion 4 d. When the second terminal 4 is mounted on the casing 1, the inclined portion 4d is embedded in the bottom portion of the casing 1, and is mounted. As described above, by providing the openings 2 c and 4 c to the first and second terminals 2 and 4, an external force is applied to the connection terminal portions 2 b and 4 b during transportation or installation, for example. Even if a stress such as bending in the thickness direction is applied to the connection terminal portions 2 b and 4 b, the stress is cut off by the openings 2 c and 4 c, so that the bimetal or movable contact described later can be relaxed. Alternatively, the fixed contact 3 is affected by external stress, which can reduce the influence on the displacement of each contact, and obtain a thermal response switch with stable temperature characteristics. In addition, the inclined portions 2 d and 4 d are provided in a portion including the openings 2 c and 4 c. Since the inclined portions 2 d and 4 d are buried and installed in the bottom portion of the housing 1, the first The buried portions of the first and second terminals 2 and 4 become longer because they are not deformed outside the above-mentioned case 1 and can be firmly fixed. They can cope with miniaturization. In addition, it is possible to prevent flux residues from entering the inside during soldering. The bimetal sheet 5 is formed by laminating a high-expansion material made of a material having high electrical resistance and a metal material having two different thermal expansion coefficients of a low-expansion material made of a material having low electrical resistance. On the one end side of the free end forming the bimetal piece 5, a movable contact 6 formed of silver tin oxide or the like which is in contact with or separated from the fixed contact 3 is fixed by means of electric welding or the like. The other paper size is applicable to China National Standard (CNS) A4 Specification (210 X 297 mm) (Please read the precautions on the back before filling this page)
-9- 1221303 A7 B7 五、發明說明（7 ) (請先閱讀背面之注意事項再填寫本頁) 方面，於他端側，以雷射焊接等方法固定有設於上述第2 端子4之上述突出部4 a。此時，上述第2端子4和上述 雙金屬片5之他端側之結合部位，並非面之全體，而僅是 上述突出部4 a之部份性結合，故在上述雙金屬片5進行 反轉動作時並不妨礙動作特性。. 又，於上述雙金屬片5之中央部，形成有助長反轉作 用之膨脹成圓罩狀之反轉部5 a ，由於該反轉部5 a之形 成，使上述雙金屬片5之溫度特性，即對應溫度之反轉動 作得以確實進行。 另，於上述雙金屬片5之他端側，在上述第2端子4 之固定位置還靠外之部位，延伸形成有與上述反轉部5 a 形成位置相反側之延伸腕部5 b。該延伸腕部5 b，係形 成在垂直於連結上述可動接點6和上述第2端子4之固定 部之中心線方向，且朝平面方向分別對稱延伸成一對之狀 育旨〇 vr、！、 經濟部智慧財產局員工消費合作社印製 此外，於上述延伸腕部5 b之自由端側，形成有對稱 於兩側面側膨脹成弧形之卡合突出部5 c ，藉由該卡合突 出部5 c卡合於上述殼體1之上述溝部1 b內壁部，使上 述雙金屬片5定位保持在上述殼體1內。 此時’上述延伸腕部5 b ’因是中介者上述弟2端子 4之固定部，延伸設置在與上述反轉部5 a形成位置相反 側，故在將上述雙金屬片5組入於上述殼體1內時，可防 止上述雙金屬片5之反轉部5 a發生變形’使組裝得以容 易進行。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -10- 1221303 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（8 ) 又’於上述延伸腕部5 b之自由端側，形成有對稱於 兩側面側膨脹成弧形之卡合突出部5 c ，因該卡合突出部 5 c卡合於上述殼體1之上述溝部1 b內壁部，故可有效 抑制上述雙金屬片5之轉動方向的動作，而提高定位精度 0 又’於上述延伸腕部5 b，形成有朝上述殼體1上面 開口方向突出之彎曲片5 d。藉由該彎曲片5 d之形成， 在將上述雙金屬片5組入於上述殼體1內時，因以組裝支 架可挾持上述彎曲片5 d，故可使上述雙金屬片5不變形 地組進上述殼體1，使組裝得以容易進行。 外盖7 ’係由合成樹脂等絕緣材形成略板狀，安裝於 上述殼體1之開口部上，使配設在上述殼體1內部之上述 第1、第2端子2 ' 4及上述雙金屬片5以及上述可動接 點6、上述固定接點3等避免受塵埃或氣體等之影響。 接著’對上述本發明熱響應開關之動作進行說明。於 常溫及通常之使用溫度，互相對稱配置之上述可動接點6 和上述固定接點3，係互相接觸使接點成〇N狀態。當從 該狀態有所原因地使溫度上升時，設置於固定有上述可動 接點6之上述雙金屬片5的上述反轉部5 a ，會隨著溫度 之上升而進行反轉動作。此時，固定於上述雙金屬片5之 上述可動接點6，係與上述雙金屬片5同時被驅動，變成 離開上述固定接點3，使接點成〇F F狀態。於該狀況， 進行反轉之上述雙金屬片5的上述反轉部5 a ，係其膨脹 部進行反轉，往上述固定接點3之方向，即，上述殻體1 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） (請先閱讀背面之注意事項再填寫本頁)-9- 1221303 A7 B7 V. Description of the invention (7) (Please read the precautions on the back before filling this page) On the other side, the above-mentioned second terminal 4 is fixed by laser welding or other methods. Projection 4 a. At this time, the joining portion of the second terminal 4 and the other end side of the bimetal piece 5 is not the entire surface, but only a partial combination of the protrusion 4a. Therefore, the bimetal piece 5 is reversed. It does not hinder the operation characteristics when turning. In addition, in the central part of the bimetallic piece 5, a reversing part 5 a that expands into a dome shape to promote the reversal effect is formed, and the temperature of the bimetallic piece 5 is caused by the formation of the reversing part 5 a. The characteristic, that is, the reversing action corresponding to the temperature is surely performed. Further, on the other end side of the bimetal 5, an extended wrist portion 5 b is formed on the opposite side of the fixing position of the second terminal 4 from the side opposite to the formation position of the reversed portion 5 a. The extending wrist portion 5 b is formed in a direction perpendicular to the center line of the fixed portion connecting the movable contact 6 and the second terminal 4, and extends symmetrically into a pair in a planar direction. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In addition, on the free end side of the extended wrist portion 5 b, an engagement protrusion 5 c that expands into an arc symmetrically on both sides is formed, and the engagement protrusion protrudes through the engagement. The portion 5 c is engaged with the inner wall portion of the groove portion 1 b of the case 1, so that the bimetal 5 is positioned and held in the case 1. At this time, 'the extended wrist portion 5 b' is a fixing portion of the above-mentioned second terminal 4 of the intermediary, and is extended on the side opposite to the position where the inversion portion 5 a is formed. Therefore, the above-mentioned bimetal 5 is incorporated into the above. When the case 1 is inside, deformation of the reversing portion 5 a of the bimetal 5 is prevented, and assembly is facilitated. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -10- 1221303 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (8) Also in the above extended wrist 5 On the free end side of b, there are formed engaging protrusions 5 c that expand symmetrically on both sides and expand into an arc shape. Since the engaging protrusions 5 c are engaged with the inner wall of the groove portion 1 b of the housing 1, It can effectively suppress the movement in the rotation direction of the bimetal piece 5 and improve the positioning accuracy. Also, on the extension wrist portion 5b, a curved piece 5d protruding toward the opening direction of the upper surface of the casing 1 is formed. With the formation of the bent piece 5 d, when the bimetal piece 5 is assembled in the case 1, the bent piece 5d can be held by the assembly bracket, so that the bimetal piece 5 can be deformed without deformation. The above-mentioned casing 1 is assembled to facilitate assembly. The outer cover 7 ′ is formed in a substantially plate shape from an insulating material such as synthetic resin, and is mounted on the opening portion of the housing 1 such that the first and second terminals 2 ′ 4 and the double terminals disposed inside the housing 1 are provided. The metal piece 5, the movable contact 6, the fixed contact 3, and the like are protected from dust and gas. Next, the operation of the thermal response switch of the present invention will be described. The above-mentioned movable contact 6 and the above-mentioned fixed contact 3 arranged symmetrically with each other at normal temperature and normal use temperature are in contact with each other to make the contacts into an ON state. When the temperature is raised for some reason from this state, the inversion portion 5a provided on the bimetal 5 to which the movable contact 6 is fixed will perform an inversion operation as the temperature increases. At this time, the movable contact 6 fixed to the bimetal 5 is driven at the same time as the bimetal 5 to leave the fixed contact 3 so that the contact is in the FF state. In this situation, the reversing portion 5 a of the bimetal 5 that is reversing is the expansion portion of the reversing portion that is in the direction of the fixed contact 3, that is, the casing 1 is a paper size applicable to the country of China Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page)
-11 - 1221303 A7 B7 五、發明說明（9 ) 之內底面方向突出。 (請先閱讀背面之注意事項再填寫本頁) 況且’當從該狀態溫度下降恢復成原本之常溫時，上 述雙金屬片5的上述反轉部5 a會隨著溫度之下降而反轉 歸位，因往與上述固定接點3方向相反方向突出，使上述 可動接點6接觸上述固定接點3而成Ο N狀態，恢復成初 期之狀態。 於上述之本發明熱響應開關之構造中，在上述雙金屬 片5之中央部，因形成有在對應溫度進行反轉時，助長反 轉作用之膨漲成圓罩狀的反轉部5 a，故可確實進行反轉 動作。 另’在上述殼體1之內底面設有上述支撐突起部1 a 。因此，於溫度下降時，萬一，上述反轉部5 a因溫度變 化緩慢（降溫緩慢）而不反轉恢復時，因上述反轉部5 a 會對接於該支撐突起部1 a，使上述可動接點6和上述固 定接點3之接觸保持成離開狀態，以防止當溫度上升再次 進行反轉時發生可動接點6和述固定接點3之接點振盪。 [發明效果〕 經濟部智慧財產局員工消費合作社印製 如以上說明，由於本發明之熱響應開關，係將與固定 接點接觸或離開之可動接點固定於一端側，在具有對應於 溫度就會反轉之反轉部的雙金屬片上，在形成有從固定端 子固定部延伸至與反轉部形成位置相反側之延伸腕部的同 時，於殼體內，形成有卡合定位延伸腕部之卡合保持部， 故在將雙金屬片組入殼體時，可防止雙金屬片之反轉部的 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -12- 1221303 A7 B7 五、發明說明（10) 變形，使組裝得以容易進行。 (請先閱讀背面之注咅？事項再填寫本頁) 又，由於延伸腕部’係對稱延伸設置在垂直於可動接 點固定部與固定端子固定部所連結之中心線方向且爲平面 方向上，於該延伸腕部之自由端形成有與卡合保持部進行 卡合之卡合突出部，故可有效抑制雙金屬片5之轉動方向 的動作，而提高定位精度。 又，由於卡合保持部，形成於殻體所設之溝部，使該 溝部之內壁面和卡合突出部互相卡合，將上述雙金屬片定 位於固定端子上，故可確實定位，使組裝得以容易進行。 另，由於延伸腕部中，形成有將雙金屬片組入殼體內 時進行挾持之彎曲片，故可使雙金屬片不變形地組進殼體 ，使組裝得以容易進行。 〔圖式之簡單說明〕 第1圖爲表示本發明之1實施例取下外蓋之狀態下熱 響應開關平面圖。 第2圖爲表示本發明之1實施例取下外蓋之狀態下熱 響應開關剖面圖。 經濟部智慧財產局員工消費合作社印製 第3圖爲表示本發明同上之配設有固定接點及固定端 子之平面圖。 第4圖爲表示本發明同上之配設有固定接點及固定端 子之剖面圖。 第5圖爲表示本發明同上之固定有可動接點狀態下之 雙金屬片平面圖。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- 1221303 A7 _B7 五、發明說明（) 第6圖爲表示本發明同上之固定有可動接點狀態下之 雙金屬片正視圖。 (請先閱讀背面之注意事項再填寫本頁) 第7圖爲表示習知之熱響應開關分解透視圖。 第8圖爲表示習知之熱響應開關剖面圖。 [符號之說明〕 1·.·殼體 la..支撐突起部 1 b ..溝部（卡合保持部） 2 . · ·第1端子 2b..連接端子部 2 c · ·開口部 2 d · ·傾斜部 3 · ·.固定接點 4 . . •第2端子（固定端子） 4 a . •突出部 4b..連接端子部 4c·.開口部 經濟部智慧財產局員工消費合作社印製 4 d ·.傾斜部 5 · · •雙金屬片 5 a . •反轉部 5 b · ·延伸腕部 5c..卡合突出部 5 d . •彎曲片 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -14- 1221303 A7 B7 7 五、發明說明（12 ) 可動接點 外蓋 (請先閱讀背面之注意事項再填寫本頁) I β MM·· MM I I I ·「，H MM MM I MB·· MM · _ 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -15·-11-1221303 A7 B7 V. Description of the invention (9) The bottom surface protrudes. (Please read the precautions on the back before filling this page.) Moreover, when the temperature drops from this state back to the normal temperature, the reversing part 5 a of the bimetal 5 will reverse as the temperature decreases. Since the position protrudes in a direction opposite to the direction of the fixed contact 3, the movable contact 6 contacts the fixed contact 3 to form a 0 N state, and returns to an initial state. In the structure of the thermal response switch of the present invention described above, the central portion of the bimetal 5 is formed with a reversing portion 5 a that expands into a dome shape when the reversing is performed at a corresponding temperature. , So the reverse operation can be performed reliably. On the other hand, the supporting protrusions 1 a are provided on the inner bottom surface of the casing 1. Therefore, when the temperature of the reversing portion 5 a does not recover due to a slow temperature change (slow temperature decrease) in case of a temperature decrease, the reversing portion 5 a will abut the supporting protrusion portion 1 a to make the above The contact between the movable contact 6 and the fixed contact 3 is kept in a separated state to prevent the contact oscillation of the movable contact 6 and the fixed contact 3 from occurring when the temperature rise is reversed again. [Invention effect] As printed above, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Due to the thermal response switch of the present invention, the movable contact which is in contact with or separated from the fixed contact is fixed to one end side. On the bimetal sheet of the reversing part of the reversal, an extending wrist part extending from the fixed terminal fixing part to the side opposite to the position where the reversing part is formed is formed, and in the housing, an engaging positioning extension wrist part is formed. Snap-holding part, so when the bimetal is assembled into the shell, the paper size of the reverse part of the bimetal can be prevented from applying the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -12- 1221303 A7 B7 5. Description of the invention (10) Deformation makes assembly easier. (Please read the note on the back? Matters before filling out this page.) Also, since the extension wrist is symmetrically extended, it is perpendicular to the center line of the movable contact fixing part and the fixed terminal fixing part and is in the plane direction. An engaging protrusion is formed on the free end of the extended wrist to engage with the engaging and holding portion, so the movement in the rotation direction of the bimetal 5 can be effectively suppressed, and positioning accuracy can be improved. In addition, since the engaging and holding portion is formed in a groove portion provided in the housing, the inner wall surface of the groove portion and the engaging protruding portion are engaged with each other, and the bimetal sheet is positioned on the fixed terminal, so it can be reliably positioned and assembled Make it easy. In addition, since the extended wrist is formed with a curved piece that is held when the bimetal is assembled into the case, the bimetal can be assembled into the case without deformation, and assembly can be easily performed. [Brief Description of the Drawings] FIG. 1 is a plan view showing a thermal response switch in a state where an outer cover is removed according to an embodiment of the present invention. Fig. 2 is a sectional view showing a thermal response switch in a state where an outer cover is removed according to an embodiment of the present invention. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Figure 3 is a plan view showing that the present invention is provided with fixed contacts and fixed terminals. Fig. 4 is a cross-sectional view showing that the present invention is provided with a fixed contact and a fixed terminal as described above. Fig. 5 is a plan view showing a bimetal sheet in a state in which a movable contact is fixed in the same manner as in the present invention. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -13- 1221303 A7 _B7 V. Description of the invention () Figure 6 shows the bimetal in the state of the present invention with a fixed movable contact Slice front view. (Please read the precautions on the back before filling out this page) Figure 7 is an exploded perspective view showing the conventional thermal response switch. Fig. 8 is a sectional view showing a conventional thermal response switch. [Explanation of symbols] 1 ··· case la ·· supporting protrusion 1 b ·· groove portion (engagement holding portion) 2 ··· 1st terminal 2b · connecting terminal portion 2 c ·· opening 2 d · · Tilt part 3 ·· .Fixed contact 4.. • 2nd terminal (fixed terminal) 4 a. • Protruded part 4b..Connected terminal part 4c .. ·. Inclined part 5 · · · Bimetal 5a · · Reversed part 5 b · · Extended wrist part 5c .. Engaged protruding part 5 d · • Bent sheet This paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm) -14- 1221303 A7 B7 7 V. Description of the invention (12) Movable contact cover (Please read the precautions on the back before filling this page) I β MM ·· MM III · ", H MM MM I MB ·· MM · _ Printed by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) -15