Λ7 B7 經濟部中央樣準局®:工消費合作社印製 五、發明説明（ί ) 發明範圍 本發明係關於一種負溫度係數(NTC)熱敏電阻，其可 以用於如在電子設備中抑制沖擊電流^尤其是本發明係關 於這樣一種NTC熱敏電阻，其結構爲具有一個包含在樹脂 外殼中的NTC熱敏電阻元件以及伸出於該樹脂外殻的食1 端子。 當各種類型的電子或電氣設備的電源開關被打開時， 會產生一個很大的沖擊電流。因此許多種NTC熱敏電阻被 用於抑制該沖擊電流，以保護設備。當目標設備的電源開 、‘w 關被打開時，藉由熱敏電阻元件的電阻，設備中的NTC熱 敏電阻產生作用，抑制該沖擊電流。該沖擊電流被抑制Μ 後，由於電阻本身産生熱量，故電阻値下降，這是因爲該 電阻具有負溫度係數，以及從而使特定的正常電厳捧作成顧麗。 第六圖顯示一個已有技藝的NTC熱敏電阻56，被用 於抑制一個沖擊電流，其結耩爲具有引線端子54a及54b 的電子元件。爲形成該NTC熱敏電阻56，首先藉由在一 個盤形陶瓷本體51的兩個表面上塗上一層含銀膠，以及使 該本體經受一個加熱處理，以形成如第五圖所示的電極52 及由此得到一個熱敏電阻元件53，其中陶瓷本體51包1 幾種過渡元素如錳和鎳的氧化物。下一步，藉由焊錫.X， 引線端子54a和54b被連接到該熱敏電阻元件53的主表面 上的電極52。直徑大約爲0.5~1.0mm的引線被用作引線端 子54a和54b。經過去污及淸洗以後，該熱敏電阻元件53 3 (請先閱讀背面之注意事項妒4'寫本頁) .裝·Λ7 B7 Central Prototype Bureau of the Ministry of Economic Affairs®: Printed by the Industrial and Consumer Cooperatives V. Description of Invention (ί) Scope of the Invention The present invention relates to a negative temperature coefficient (NTC) thermistor, which can be used to suppress shocks in electronic equipment, for example. In particular, the present invention relates to an NTC thermistor having a structure including an NTC thermistor element contained in a resin case and a food terminal that protrudes from the resin case. When the power switches of various types of electronic or electrical equipment are turned on, a large inrush current is generated. Therefore many NTC thermistors are used to suppress this inrush current to protect the equipment. When the power of the target device is turned on and the 'w off' is turned on, the NTC thermistor in the device acts to suppress the inrush current by the resistance of the thermistor element. After the inrush current is suppressed, the resistance 値 decreases because the resistance itself generates heat. This is because the resistance has a negative temperature coefficient, and thus makes a specific normal battery into Gu Li. The sixth figure shows a prior art NTC thermistor 56 which is used to suppress an inrush current, and the result is an electronic component having lead terminals 54a and 54b. To form the NTC thermistor 56, firstly, a layer of silver-containing glue is applied to both surfaces of a disc-shaped ceramic body 51, and the body is subjected to a heat treatment to form an electrode 52 as shown in the fifth figure. As a result, a thermistor element 53 is obtained, in which the ceramic body 51 contains several oxides of transition elements such as manganese and nickel. Next, the lead terminals 54a and 54b are connected to the electrode 52 on the main surface of the thermistor element 53 by solder.X. Leads having a diameter of about 0.5 to 1.0 mm are used as the lead terminals 54a and 54b. After decontamination and rinsing, the thermistor element 53 3 (Please read the precautions on the back first and write this page).
*1T —線· Γ 本紙張尺度ϋ用中關家縣（CNS)以規格 (210X297公楚） 經濟部中央榡準局貝工消費合作枉印製 Λ1 Η7 ___ ___---- - "" 五、發明说明（>) 蓋上一個樹脂材料的外蓋55，如第六圖所示’比如’藉由 粉未塗敷法得到該NTC熱敏電阻56。 另—方面，日本專利公報特開7_377〇6揭示了一種 ，其具有一個由陶瓷本體所形成的熱敏電阻 元件，其中該本體包括稀土過渡元素的氧化物以及具有形 成於謂個主表面上的電極。該jTC熱敏舅阻元件被包含在 —個樹脂外殻中，且被彈性地夾持在一些金屬端子中，並 由這些金屬端子托住。報告中說’初果使用一種帶有被稱 爲“LaCo氧化物”的NTC熱敏電阻元件，那麼在穩定'狀 態下的電源損耗可以顯著減少，並且說’可以通過一個大 電流，因爲電阻低且室溫下的B赏釁小’而高溫下的B常 糞大。 近幾年來，所有電子設備的規格正在變大’以及對抑 制大電流中的沖擊電流的要求正在增加。還必須注意到’ 產品可靠性規則正對電子元件的安全性要求得比以前更加 嚴格。對於上述NTC熱敏電阻56，其B常量相當小’小 於2000〜3500K，国爲其熱敏電阻元件51包含有鎳和/或錳 的氧化物。因此，如果在電路的穩定電流値超過5A的大 電流領域中，該熱敏電阻被使用，那麼該元件的溫度可能 超過160°C且元件發散的熱量可能變得非常高，引起熱敏 電阻元件51和引線端子54a和54b之間的被焊部位熔化’ 引起樹脂外殻55熔化且變形，或者損壞該NTC熱敏電阻 56所安裝的電路板。由於這個原因，這種具有引線端子的 NTC熱敏電阻元件不被使用，除非電路中的穩定電流相對 ________._4___ 本紙張尺度適用中國國家標準（CNS >Λ4規格（21〇Χ297〇ΊΊ 一 J--„--^-------裝-- ' Nf. (請先閱讀背面之注意寧項^咎寫本頁)* 1T —line · Γ This paper size is printed by Zhongguanjia County (CNS) with specifications (210X297). Printed by Λ1 Η7 ___ ___-----" & quot V. Description of the invention (>) Cover the outer cover 55 of a resin material, as shown in the sixth figure, for example, to obtain the NTC thermistor 56 by powder coating method. On the other hand, Japanese Patent Laid-Open No. 7_377〇6 discloses a type having a thermistor element formed of a ceramic body, wherein the body includes an oxide of a rare earth transition element and a material having a main surface formed on the main surface. electrode. The jTC thermistor element is contained in a resin case, and is elastically clamped in some metal terminals and held by these metal terminals. The report states that 'the first result is the use of an NTC thermistor element called a "LaCo oxide", so the power loss in the stable state can be significantly reduced, and it says that' a large current can be passed because the resistance is low And the B reward at room temperature is small, and the B feces at high temperature is large. In recent years, the specifications of all electronic devices are increasing, and the requirements for suppressing inrush currents in large currents are increasing. It must also be noted that the 'Product Reliability Rules are making electronic components more stringent than ever before. For the above-mentioned NTC thermistor 56, the B constant is relatively small ', which is less than 2000 to 3500K, and the thermistor element 51 thereof contains an oxide of nickel and / or manganese. Therefore, if the thermistor is used in a high current area where the stable current of the circuit exceeds 5A, the temperature of the element may exceed 160 ° C and the heat emitted by the element may become very high, causing a thermistor element. The melting of the welded portion between 51 and the lead terminals 54a and 54b 'causes the resin case 55 to melt and deform, or damages the circuit board on which the NTC thermistor 56 is mounted. For this reason, this NTC thermistor element with lead terminals is not used unless the stable current in the circuit is relatively ________._ 4___ This paper size applies to the Chinese national standard (CNS > Λ4 specification (21〇 × 297〇ΊΊ) J-„-^ ------- install-'Nf. (Please read the note on the back of Ning Xiang first and write this page)
、1T Γ 線 經濟部中央標準局員工消費合作社印裝 Λ7 . Η 7 五、發明説明（今） 很小。 在之前所提到的日本專利公報特開7-37706中揭示的 NTC熱敏電阻可以使用在大電流電路中，因爲如上所述， 它們使用具有LaCo氧化物的熱敏電阻元件。由於該熱敏 電阻元件被放置在一個樹脂外殼中且由金屬端子彈性地托 住，該外殼的樹脂材料不會熔化以及熱敏電阻元件和引線 端子之間的被焊部位不受影響。 然而，抑制較大沖擊電流的要求正在增加，以及這種 NTC熱敏電阻不能有效地對這種要求作出反應》 發明槪耍 因此，本發明的目標是提供一種NTC熱敏電阻，與前 技的NTC熱敏電阻相比，該熱敏電阻能可靠而安全地抑制 更大的沖擊電流。 本發明的NTC熱敏電阻，藉由它可以完成上述目標以 及其它目標，其特徵是包括一個具有負溫度係數的電阻的 熱敏電阻元件，一些形成在電阻兩個表面上的電極，一個 麥鼓蔻龜里電.阻元件的樹脂外殼，以及一對金屬端子，如 銅製端子，該端子彈性地夾持且托住熱敏電阻元件位於外 殻中並且伸出殼外。一個較佳實施例中，該熱敏電阻元件 包括稀土過渡元素的氧化物，或者主要爲LaCo氧化物， 該金屬端子包括一種銅-鈦合金，> 以及該電極包括一種銀-鉛合金。伸出樹脂外殼的每一個金屬端子可以具有一個形 狀爲突出薄片的末端部分。該樹脂外殻可以具有向外突出 的管腳及內部包含一個夾具，用於夾住該熱敏電阻元件以 __ 5 ___ 本紙張尺度適用中國囷家標準（CNS ) Α4規格（2丨0X297公— n - I -- -»·- t^i ti ......... ml n n #先M讀背面之注意事項寫本頁) ΓLine 1T Γ Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs Λ7. Η 7 V. The invention description (today) is very small. The NTC thermistors disclosed in the aforementioned Japanese Patent Laid-Open No. 7-37706 can be used in a high-current circuit because, as described above, they use a thermistor element having a LaCo oxide. Since the thermistor element is placed in a resin case and elastically held by the metal terminal, the resin material of the case does not melt and the welded portion between the thermistor element and the lead terminal is not affected. However, the requirements for suppressing large inrush currents are increasing, and such NTC thermistors cannot effectively respond to such requirements. "Inventions Therefore, the object of the present invention is to provide an NTC thermistor, which Compared with NTC thermistors, this thermistor can reliably and safely suppress larger inrush current. The NTC thermistor of the present invention can achieve the above objectives and other objectives by using the NTC thermistor, which is characterized by including a thermistor element having a resistor with a negative temperature coefficient, some electrodes formed on both surfaces of the resistor, and a microphone. The resin case of the resistance element and the pair of metal terminals, such as copper terminals, elastically clamp and hold the thermistor element in the case and extend out of the case. In a preferred embodiment, the thermistor element includes an oxide of a rare earth transition element, or mainly a LaCo oxide, the metal terminal includes a copper-titanium alloy, and the electrode includes a silver-lead alloy. Each metal terminal protruding from the resin case may have an end portion shaped as a protruding sheet. The resin case may have pins protruding outwards and a clamp included therein for clamping the thermistor element to __ 5 ___ This paper size is applicable to China Standard (CNS) Α4 specification (2 丨 0X297 male — N-I--»·-t ^ i ti ......... ml nn #Read the notes on the back first and write this page) Γ
,1T 線 講 中的NTC熱敏電阻的外部立 Λ7 _ B7 五、發明説明（4-) 防止它錯位。這樣一個夾具包括一個平板構件，其中該構 件被固定在樹脂外殻上且其開口的內徑大於熱敏電阻元件 的外徑。 圖式之簡要說明 加入且形成本說明書的一部分的附圖說明了本發明的 —個實施例以及，與詳細說明一起解釋本發明的原理。圖 .中： / / 第分別爲本發明的一個NTC熱敏電阻的側 視圖和 第二圖顯示第中的NTC熱敏電阻的分解圖 第三細顯示： 體圖； 第四圖爲一個電路圖，說明插入本發明的熱敏電阻中 的電流抑制電路的一個實例； 第五圖爲一個在生產處理過程中，前技ntc熱敏電阻 的前視圖； 第六圖前視圖，說明經過第五圖中處理的前技NTC熱 敏電阻。 發明的詳細說明 和3圖顯示了本發明的一個NTC熱敏電 阻1 爲具有-個包含在PPS(聚苯硫化物)樹脂 外殼2內部的熱敏電阻元件3。由於該PPS樹脂對熱具有 高抵抗力，即使內部的熱敏電阻元件3發出熱量且達到一 請先閱讀背面之注意事項1C1V寫本頁) •窣- -a Γ Γ 經濟部中央標準局負工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29?公势) 經濟部中央標準局貝工消费合作社印裝 Λ7 Η 7 五、發明説明（ί ) 個高溫’本發明的樹脂外殻2也不易熔化或變形。這種 PPS樹脂最好是依據熱敏電阻元件3的類型來選擇，使得 它變軟的溫度高於最大溫度，其中該最大溫度爲藉由本身 放tti的熱量’熱敏電阻元件3所預期達到的最大溫度，以 便更加嚴格地防止樹脂外殼2上由熱量引起的副作用。不 言而喻/本發明並不限制其範圍爲利用PPS樹脂來形成樹 脂外殻2。可以被用於形成外殼2的材料除了 PPS樹脂以 外’還包括液態的晶體狀的聚合物、聚醚醚酮、聚醯亞胺 、聚醢胺和通過添加一種玻璃塡料到聚苯乙烯、酚、尼龍 、、尼龍6惑著尼龍66中而形成的合成材料，，以便徵加絮_ 吟抵抗力。 樹脂外殼近似爲平行四邊形狀。熱敏電阻元件3具有 圓盤形’包括形成於盤形的熱敏電阻塊3a的相對主表面上 的電極3b和3c，其中該熱敏電阻塊包含過渡元素的氧化 物，主要是LaCo(此處指“LaCo氧化物”）。電極3b和3c 爲銀-鉛合金，其中該合余含有銀和鉛的重量比例爲7 : 3。 藉由塗上一些導電的銀給焊膠及經過加熱處理，可以形成 這些電極。爲防止電極3b和3c之間的遷移，它們的直徑 被做成小於熱敏電阻塊3a的直徑。 爲防止熱g電普$件3在樹脂外殻2中在上下方向改 變位置(參以及尤其是防止它的底部接觸樹脂 外殼2的底表面’一個帶有圓形開口 4a的平板形定位夾具 4被放置在樹脂外殼2裏面，用於在此開口 4a中夾住該熱 敏電阻元件3。對於定位夾具4的材料而言，本發明沒有 __;___ 7 本紙珉尺度適用中國國家標準（CNS ) Λ4規格（2i0x 297公焓） 請先閲讀背面之注^-項本頁) 訂 —線 Γ Λ7 H7 經濟部中央標準局負工消費合作社印聚 五、發明説明（t ) 任何嚴格的限制。可以使用一種合適的電絕緣材料，如合 成樹脂或陶瓷材料。由於開口 4a是用於夾住並正確的定^ 熱敏電阻元件3，它的直徑比熱敏電阻元性^ 3的篆徑僅谨_ 大一點。 在樹脂外殻2裏面，熱敏電阻3被一對拉長的金屬端 子5和6彈性地夾住並托住。該端子5和6每一個具有一 個平的主體部分5a或者6a從樹脂外殻2的外部向下伸出 到外面。端子5和6的內部末端部分(在樹脂外殻2裏面） 被相對彎曲18(Γ，]^彈性的形成接觸部分讣和6b。熱敏 電阻元件J被這一對金屬端子5和6的接觸部分5b和6b 的類似彈簧之彈性力彈性地夾住並托住。 所示，金屬端子5和6的外部末端部分 (伸出於樹脂外殻2的外面)具有突出薄片的形狀，這樣它 們不僅能夠容易地被表頭荄裝到一個印刷電路板上，而且 可以方便準進行線連接。然而，金屬端子5和6的外部禾 端部分的形狀雜非用來限制本發明的範圍。它們的形狀可 < - ... 以是任意的，只要便於被表面安裝到一個普通的印刷電路 ί； ...... 即可 金屬端子5和6最好由銅或者它的合金製成。這些材 料是較佳的因爲它們每單位體稹具有相對小的特定電阻率 丨且當經遞一個大電流時’從金屬端子5和6放出的熱量可 以因此減少。換句話說’即使一個大的沖擊電流經過該熱 敏電阻，樹脂外殼2也能非常有效地避免熔化或麗獲。銅_ 鈦合金尤其適合於用作金屬端子5和6的材料，因爲由於 8 (請先閱讀背面之注意事項,4寫本頁) 裝· 訂The external stand of NTC thermistor in line 1T Λ7 _ B7 V. Description of the invention (4-) Prevent it from being misaligned. Such a jig includes a flat plate member in which the member is fixed to a resin case and an inner diameter of an opening thereof is larger than an outer diameter of a thermistor element. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and form a part of this specification, illustrate one embodiment of the invention and, together with the detailed description, explain the principles of the invention. In the figure: // The figure is a side view of an NTC thermistor of the present invention and the second figure shows an exploded view of the NTC thermistor in the third detail display: a block diagram; a fourth diagram is a circuit diagram, An example of a current suppressing circuit inserted into the thermistor of the present invention will be described. The fifth figure is a front view of the front-end ntc thermistor during the production process; the sixth view is a front view illustrating the fifth figure. Processed NTC thermistor. Detailed description of the invention and Fig. 3 shows that an NTC thermistor 1 of the present invention is a thermistor element 3 having a PPS (polyphenylsulfide) resin case 2 inside. Because this PPS resin has high resistance to heat, even if the internal thermistor element 3 emits heat and reaches one, please read the precautions on the back 1C1V to write this page) • 窣--a Γ Γ Central Ministry of Economic Affairs The paper size printed by the consumer cooperative is applicable to the Chinese National Standard (CNS) A4 specification (210X29? Public) The Central Standards Bureau of the Ministry of Economic Affairs is printed by the Beige Consumer Cooperative Λ7 Η 7 V. Description of the invention (ί) High temperature resin of the present invention The casing 2 is also not easily melted or deformed. This PPS resin is preferably selected according to the type of the thermistor element 3, so that the temperature at which it softens is higher than the maximum temperature, where the maximum temperature is expected to be reached by the heat of the tti itself. Temperature in order to more strictly prevent side effects caused by heat on the resin case 2. It goes without saying that the scope of the present invention is not limited to the use of PPS resin to form the resin shell 2. Materials that can be used to form the housing 2 include, in addition to PPS resin, liquid crystalline polymers, polyetheretherketone, polyimide, polyimide, and polystyrene, phenol by adding a glass filler , Nylon, Nylon 6 confuses the synthetic material formed in Nylon 66 in order to increase resistance. The resin case is approximately parallelogram-shaped. The thermistor element 3 has a disc shape including electrodes 3b and 3c formed on opposite major surfaces of the disc-shaped thermistor block 3a, wherein the thermistor block contains an oxide of a transition element, mainly LaCo (this Refers to "LaCo oxide"). The electrodes 3b and 3c are silver-lead alloys, and the balance contains silver and lead in a weight ratio of 7: 3. These electrodes can be formed by applying some conductive silver to the solder and subjecting it to heat treatment. To prevent migration between the electrodes 3b and 3c, their diameters are made smaller than the diameter of the thermistor block 3a. In order to prevent the thermoelectric component 3 from changing its position in the resin case 2 in the up-down direction (see especially to prevent its bottom from contacting the bottom surface of the resin case 2), a flat plate-shaped positioning fixture 4 with a circular opening 4a It is placed inside the resin case 2 for clamping the thermistor element 3 in this opening 4a. As for the material of the positioning jig 4, the present invention does not have __; ___ 7 The dimensions of this paper are applicable to Chinese national standards (CNS ) Λ4 specification (2i0x 297 enthalpy) Please read the note on the back ^ -item page first) Order—line Γ Λ7 H7 Printed by the Consumers ’Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (t) Any strict restrictions. A suitable electrically insulating material such as a synthetic resin or a ceramic material may be used. Since the opening 4a is used for clamping and correctly positioning the thermistor element 3, its diameter is only slightly larger than the diameter of the thermistor element ^ 3. Inside the resin case 2, the thermistor 3 is elastically clamped and held by a pair of elongated metal terminals 5 and 6. The terminals 5 and 6 each have a flat body portion 5a or 6a protruding downward from the outside of the resin case 2 to the outside. The internal end portions of the terminals 5 and 6 (inside the resin case 2) are relatively bent by 18 (Γ,] ^ to form the contact portions 讣 and 6b elastically. The thermistor element J is contacted by the pair of metal terminals 5 and 6. The spring-like elastic force of the portions 5b and 6b elastically clamps and holds it. As shown, the outer end portions of the metal terminals 5 and 6 (projecting out of the resin case 2) have a shape of a protruding sheet, so that they not only It can be easily mounted on the printed circuit board by the header, and can be easily wired. However, the shape of the outer end portions of the metal terminals 5 and 6 is not intended to limit the scope of the present invention. Their shapes May be-any, as long as it is easy to be surface-mounted to an ordinary printed circuit; ... that is, the metal terminals 5 and 6 are preferably made of copper or its alloy. These Materials are better because they have a relatively small specific resistivity per unit volume, and when a large current is passed, 'the heat released from the metal terminals 5 and 6 can be reduced accordingly. In other words,' even a large shock Current flows through the thermistor Resistance, the resin case 2 is also very effective to avoid melting or gaining. Copper_titanium alloy is especially suitable for use as the material of metal terminals 5 and 6, because 8 (Please read the precautions on the back first, 4 write this page) Packing
C 線 本紙張尺度適用中國國家標準（CNSM4規格（ 210X297公嫠） Λ7 B7 經濟部中央標準局貝工消費合作社印聚 熱量所引起之金屬端子5和6的接觸部分5b和6b的彈性 的下降能因此被抑制β 該NTC熱敏電阻1可以被裝配成如第二圖所示。通過 樹脂外殼2的主體2a的較低開口 2b ’露置在定位夾具4 的開口 4a裏面的熱敏電阻元件3被插入樹脂外殼2中。金 屬端子5和6從上開口插入後，一個蓋子2c被放置以封閉 丰|2^的上開口以及被固定在其上，藉由一種膠(未顯示） ，_g藉由在蓋子2c的兩個表面上提供一個凸出端2d以及 相.藏的刻上一些凹痕到第二圖所示的樹脂外殻2的主驚Ja 的內表面，並且將這些凸出端與凹痕相吻倉。從樹脂外殼 2的底表面上向下突出來(參看的管腳2e和 五、發明説明（7) 2f可以與蓋子2c —體成形，如第二圖所示，麗II以是分立 元件，利用粘劑粘附到蓋子2c的龜蠢厘J第三圖顯示完全 按該方法裝配後的NTC熱敏電阻1 »管腳2e和2f比金屬 端子5和6伸出外殻2的底表面的長度短。因此，當該 NTC熱敏電阻1被安裝到一個印刷電路板上時，如在樹脂 外殼2和電路板之間留下一個小的縫隙之下，是穩定的’ 以便抑制從NTC熱敏電阻1至印刷電路板上的熱量傳輸。 本發明的NTC熱敏電阻具有許多優點。下面介紹這些 優點。 因爲熱敏電阻元件3在金屬端子5和6的接觸部分5b 和6b之間被禪性地托住，所以不霡要使甩如焊劑等任何粘 性材&作爲它前支架。因此，由熱敏電阻元件3發散的熱 焉而引起的焊劑熔化問題在本發明中能得到解決。因爲熱 本紙張尺度逋用中國國家標準（CNS ) Λ4規格（21〇X297公趋） 請先閲讀背面之注意事項一0寫本頁) -* Λ7 H7 五、發明説明（汉） 敏電阻元件3被托住，以便不與樹脂外殻2接觸，此外， 也沒有任何由於熱敏電阻元件3發散的熱量而引起的樹脂 ........ 外殼2的熔化或變形。因爲依據本發明之此實施例，熱敏 電阻元件3的熱敏電阻塊3a包括LaCo氧化物，所以熱敏 電阻塊3a的B常量非常大(4000-5000K) »而主要使用錳或 鎳的氧化物的習知NTC熱敏電阻的B常量僅爲大約2500二 «因此，對於通過相同的電流，若使用本髮明韵熱， 敏電阻元件3，那麼熱敏電阻元件3產生的熱量將非常少 。因爲熱敏電阻元件3被固定在定位夾具4的開口 4a內， 所以即使熱敏電阻元件3被放置在豎直方向的某一位置， 它也不會接觸到樹脂外殼2的內表面。因爲電極3b和3c 包括銀-鉛合金，所以相對於由銀製成的電極來說，這些電 極之間的遷移能更加可靠地得到防止。因此，當經過大電 流時，能更加可靠地避免短路。 對所述實例進行的很灸修改和變化都可能在本發明的 簡圍虫。定位夾具不一定要具有圓形的開口來支持該熱敏 電阻元件。其它形狀的一個長方形開口或者許多開口可加 ...... 以代替。該定位夾具甚至可以不需要任何開口。它可以具 有如複數個凸出端，從樹脂外殻2的主體2a的一個內表面 ...... .. 伸出且^伸至熱敏電阻元件3的外邊緣。雖然每一個金靥 端子5和6顯示在第二圖中，具有兩個彈性揆鰻壤Jb和 6b’但是它們可以是每一個包括一個單片，只要它們能安 全地夾住其中的熱敏電阻元性j即可。 第四圖顯示了一個電路實例，該電路含有一個使用上 _ 10 本紙張尺度適用中國國家榡準（CNS〉Λ4坭格（210X2<?7公及）The paper size of the C line is applicable to the Chinese national standard (CNSM4 specification (210X297 cm)) Λ7 B7 The reduction in elasticity of the contact parts 5b and 6b of the metal terminals 5 and 6 caused by the heat accumulation of the printing and heating of the Central Bureau of Standards of the Ministry of Economy Therefore, the NTC thermistor 1 can be suppressed as shown in the second figure. Through the lower opening 2b of the main body 2a of the resin case 2, the thermistor element 3 exposed inside the opening 4a of the positioning jig 4 Is inserted into the resin case 2. After the metal terminals 5 and 6 are inserted from the upper opening, a cover 2c is placed to close the upper opening of Feng 2 ^ and is fixed thereto, by a glue (not shown), By providing a protruding end 2d and two phases on the two surfaces of the cover 2c, a few dents are engraved to the inner surface of the main body Ja of the resin case 2 shown in the second figure, and these protruding ends are provided. It fits into the dent. It protrudes downward from the bottom surface of the resin case 2 (see pins 2e and V. Invention description (7) 2f can be integrally formed with the cover 2c. As shown in the second figure, Li II is a discrete component that is adhered to the cover 2c with an adhesive The third figure of Stupid J shows that the NTC thermistor 1 assembled completely according to this method »The pins 2e and 2f are shorter than the length of the metal terminals 5 and 6 protruding from the bottom surface of the housing 2. Therefore, when the NTC thermistor 1 is stable when mounted on a printed circuit board, such as under a small gap left between the resin case 2 and the circuit board, so as to suppress heat transfer from the NTC thermistor 1 to the printed circuit board The NTC thermistor of the present invention has many advantages. These advantages are described below. Since the thermistor element 3 is zenically held between the contact portions 5b and 6b of the metal terminals 5 and 6, it is not necessary to make the Any viscous material such as solder & serves as its front bracket. Therefore, the problem of flux melting caused by the heat generated by the thermistor element 3 can be solved in the present invention. Because the paper size of the thermal paper uses the Chinese national standard ( CNS) Λ4 specification (21〇X297 public trend) Please read the precautions on the back-write this page)-* Λ7 H7 V. Description of the invention (Chinese) The varistor element 3 is held so as not to contact the resin case 2 Contact, in addition, nothing Resin caused by the heat emitted from the thermistor element 3 ........ The melting or deformation of the case 2. Because according to this embodiment of the present invention, the thermistor block 3 a of the thermistor element 3 includes LaCo Oxides, so the B constant of the thermistor block 3a is very large (4000-5000K) »while the conventional NTC thermistor, which mainly uses manganese or nickel oxides, has a B constant of only about 2,500. Therefore, for the same If the thermistor and the thermistor element 3 of the present invention is used, the heat generated by the thermistor element 3 will be very small. Because the thermistor element 3 is fixed in the opening 4a of the positioning jig 4, The resistance element 3 is placed at a certain position in the vertical direction, and it will not contact the inner surface of the resin case 2. Since the electrodes 3b and 3c include a silver-lead alloy, migration between these electrodes can be prevented more reliably than an electrode made of silver. Therefore, short-circuit can be avoided more reliably when a large current is passed. Modifications and variations to the described examples are likely to be found in the present invention. The positioning jig does not have to have a circular opening to support the thermistor element. A rectangular opening or other openings of other shapes can be added ...... instead. The positioning jig may not even require any openings. It may have a plurality of protruding ends, which protrude from one inner surface of the main body 2a of the resin case 2 to the outer edge of the thermistor element 3. Although each of the golden cricket terminals 5 and 6 is shown in the second figure and has two elastic ridges Jb and 6b ', they can each include a single piece, as long as they can securely clamp the thermistor therein The element j is sufficient. The fourth figure shows an example of a circuit that contains a _ 10 paper size that applies to the Chinese National Standards (CNS> Λ4 坭 Grid (210X2 <? 7mm)
C 經濟部中央標準局負工消費合作社印製 ^-------穿-- (請先閲讀背面之注意事項寫本頁)C Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Consumer Cooperatives ^ ------- Wear-- (Please read the precautions on the back to write this page)
Λ7 Η 7 五、發明説明（1 ) 述NTC熱敏電阻i之抑制電流的電路。該NTC熱敏電阻1 串聯有一個鹵素燈加熱器11，以抑制從其中經過的沖擊電 流。如果NTC熱敏電阻1中的熱敏電阻元件3包含一個具 有LaC〇03的熱敏電阻壊，那麼當一個超過5A的電流經過 該電路時，由於熱敏電阻本身產生的熱量，該熱敏電阻元 件3能達到一個超過160°C的溫i。然而，如果該NTC熱 敏電阻1係如上所述地建構，那麼即使熱敏電阻元件3達 到一個超過該溫度位準，迆5會產生變形。 . N! 1ί-先閲讀背面之注$項寫本頁) .裝 訂Λ7 Η 7 V. Description of the invention (1) The circuit for suppressing current of NTC thermistor i. The NTC thermistor 1 is connected in series with a halogen lamp heater 11 to suppress an inrush current passing therethrough. If the thermistor element 3 in the NTC thermistor 1 contains a thermistor La with LaC03, then when a current exceeding 5A passes through the circuit, the thermistor due to the heat generated by the thermistor itself, Element 3 can reach a temperature i exceeding 160 ° C. However, if the NTC thermistor 1 is constructed as described above, even if the thermistor element 3 reaches a temperature level exceeding that, 迤 5 will be deformed. N! 1ί-Read the note on the back to write this page). Binding
C 經濟部中央標準局貝工消費合作社印裝 11 本紙乐尺度適用中國國家標準（CNS ) Λ4規格（210X297^1 )C Printed by the Central Standards Bureau of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives 11 This paper scale is applicable to the Chinese National Standard (CNS) Λ4 specification (210X297 ^ 1)