JP2558104Y2 - Thermistor temperature sensor - Google Patents

Thermistor temperature sensor

Info

Publication number
JP2558104Y2
JP2558104Y2 JP2690292U JP2690292U JP2558104Y2 JP 2558104 Y2 JP2558104 Y2 JP 2558104Y2 JP 2690292 U JP2690292 U JP 2690292U JP 2690292 U JP2690292 U JP 2690292U JP 2558104 Y2 JP2558104 Y2 JP 2558104Y2
Authority
JP
Japan
Prior art keywords
thermistor
lead wire
temperature sensor
lead
protective tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2690292U
Other languages
Japanese (ja)
Other versions
JPH0579902U (en
Inventor
正治 生野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Electronics Co Ltd
Original Assignee
Shibaura Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shibaura Electronics Co Ltd filed Critical Shibaura Electronics Co Ltd
Priority to JP2690292U priority Critical patent/JP2558104Y2/en
Publication of JPH0579902U publication Critical patent/JPH0579902U/en
Application granted granted Critical
Publication of JP2558104Y2 publication Critical patent/JP2558104Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Thermistors And Varistors (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は給湯器、暖房機、風呂等
の水温測定に使用するサーミスタ温度センサに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermistor temperature sensor used for measuring a water temperature of a water heater, a heater, a bath or the like.

【0002】[0002]

【従来の技術】従来、この種のサーミスタ温度センサ1
は図3および図4に示すように、サーミスタ素子2の両
面にリード線4を接続し、かつサーミスタ素子2をガラ
ス封止体3で溶封したガラス封止サーミスタが使用され
ている。
2. Description of the Related Art Conventionally, a thermistor temperature sensor 1 of this kind
As shown in FIGS. 3 and 4, a glass-sealed thermistor in which lead wires 4 are connected to both surfaces of the thermistor element 2 and the thermistor element 2 is sealed with a glass sealing body 3 is used.

【0003】図3は、リード線4の線間を絶縁チューブ
9で電気絶縁し、リード線4と外部引き出しコード10
の導体10aを接続して、更にその接続部8被覆チュ
ーブ11で保護した構造である。
[0003] FIG. 3 shows a state in which the space between the lead wires 4 is electrically insulated by an insulating tube 9, and the lead wire 4 is connected to an external lead cord 10.
Are connected, and the connection portion 8 is further protected by a covering tube 11.

【0004】図4は、リード線4の引き出し部を樹脂で
補強し、リード線4と外部引き出しコード7の導体7a
を接続し、被覆部7bを補強部12まで押し出してリー
ド線4の線間を電気絶縁した構造である。
FIG. 4 shows a state in which the lead portion of the lead wire 4 is reinforced with resin, and the lead wire 4 and the conductor 7a of the external lead cord 7 are provided.
Are connected, and the covering portion 7b is extruded to the reinforcing portion 12 to electrically insulate between the lead wires 4 .

【0005】なお、図3および図4のサーミスタ温度セ
ンサは、有底状の金属保護管に収容され、その内部の隙
間をエポキシ樹脂等の電気的絶縁材で充填して封止され
ている(図示せず。)
The thermistor temperature sensor shown in FIGS. 3 and 4 is housed in a bottomed metal protective tube, and the internal gap is filled and sealed with an electrical insulating material such as epoxy resin. (Not shown)

【0006】給湯器、暖房機、風呂等の温度測定に使用
される温度センサは、一般に水分の影響を受ける場所に
取り付けられる。従って温度センサは保護管に収容され
内部の隙間を合成樹脂等で充填した防水構造となってい
る。
[0006] A temperature sensor used for measuring the temperature of a water heater, a heater, a bath, or the like is generally mounted at a location affected by moisture. Accordingly, the temperature sensor is housed in a protective tube and has a waterproof structure in which an internal gap is filled with a synthetic resin or the like.

【0007】しかし、湿度の高い雰囲気で常時温度のサ
イクル的変化をくり返すと、保護管内部の充填樹脂と金
属、導体被覆部、ガラス部等との密着性が悪くなり水分
が内部に浸入しやすくなる。
However, if the temperature is repeatedly cycled in a humid atmosphere, the adhesion between the resin inside the protective tube and the metal, the conductor coating, the glass, etc. becomes poor, and water enters the inside. It will be easier.

【0008】従来のサーミスタ温度センサは、保護管
の内部に水分が浸入すると、ガラス封止サーミスタのリ
ード線4の引き出し部分で電気絶縁度が低下してサーミ
スタの特性に異常が発生し、更に電気腐食によってリー
ド線4が断線するという問題があった。
In the conventional thermistor temperature sensor 1 , when moisture enters the inside of the protective tube, the degree of electrical insulation is reduced at the lead-out portion of the lead wire 4 of the glass-sealed thermistor, causing an abnormality in the characteristics of the thermistor. There has been a problem that the lead wire 4 is disconnected due to electric corrosion.

【0009】[0009]

【考案が解決しようとする課題】 本考案の目的は、水分
による電気腐食を防止し、熱応答性が良く、機械的強度
に優れ、信頼性の高いサーミスタ温度センサ提供する
ことにある
SUMMARY OF THE INVENTION An object of the present invention is to provide a thermistor temperature sensor which prevents electrical corrosion due to moisture, has good thermal response, excellent mechanical strength, and high reliability.
It is in .

【0010】[0010]

【課題を解決するための手段】本考案は、ガラスで封止
されたサーミスタ素子と2個のリード線貫通孔を有する
セラミック体とが一体に融着しているサーミスタを使用
する。サーミスタのリード線にセラミック体リード線孔
の最奥部まで保護チューブを被覆する。
The present invention uses a thermistor in which a glass-sealed thermistor element and a ceramic body having two lead-through holes are fused together. The lead wire of the thermistor is covered with a protective tube up to the innermost part of the ceramic lead wire hole.

【0011】リード線とコードの接続部および保護チュ
ーブをコードの被覆部で更に被覆して成ることを特徴と
している。従って、本考案の構成は以下に示す通りであ
る。即ち、サーミスタ素子(2) を封止するガラス封止
体(3)と2個のリード線貫通孔を有するセラミック体
(5)とが一体に融着して形成されたサーミスタに対し
て更に前記サーミスタ素子(2)のリード線(4)に接
続部(8)において外部引き出しコード(7)を接続し
たサーミスタ温度センサ(1)において、 前記サーミス
タ素子(2)の前記リード線(4)は前記セラミック体
(5)の2個のリード線貫通孔の最奥部まで保護チュー
ブ(6)で被覆され、かつ前記保護チューブ(6)は前
記外部引き出しコード(7)の被覆部(7b)で被覆し
てなることを特徴とするサーミスタ温度センサとしての
構成を有する。
The present invention is characterized in that the connecting portion between the lead wire and the cord and the protective tube are further covered with a covering portion of the cord. Therefore, the configuration of the present invention is as shown below.
You. That is, glass sealing for sealing the thermistor element (2)
Body with body (3) and two lead-through holes
(5) For a thermistor formed by fusing together
And further connected to the lead wire (4) of the thermistor element (2).
Connect the external drawer cord (7) at the connection (8)
Thermistor in the temperature sensor (1), wherein the thermistor has
The lead wire (4) of the element (2) is a ceramic body.
(5) Protection tube to the innermost part of the two lead wire through holes
(6) and said protective tube (6) is
Covered with the covering part (7b) of the external drawer cord (7).
Characterized as a thermistor temperature sensor
Having a configuration.

【0012】[0012]

【作用】上記の構成によれば、ガラス封止体から引き
出されるリード線はセラミック体の内部で線間絶縁
され、かつ保護チューブを被覆することにより、リー
ド線4の線間の沿面距離は長くなり電気絶縁性が維持さ
れる。
SUMMARY OF] According to the above configuration, the lead wire 4 drawn out from a glass sealing body 3 is between lines insulated with the ceramic body 5, and by coating the protective tube 6, between the lines of the lead wire 4 The creepage distance is increased and the electrical insulation is maintained.

【0013】リード線外部引き出しコードの接続
外部引き出しコードの被覆部7bにより電気絶縁
され、更にサーミスタのリード線の保護チューブ
外部引き出しコードの被覆部7bで被覆してセラミッ
ク体5の内面との密着性を良くすることにより、リード
4の線間の電気絶縁性は一段と向上する。
[0013] The connection portion 8 of the lead wire 4 and the external lead cord 7 are electrically insulated by the covering part 7b of the external drawing code, further protective tube 6 of the lead wire 4 of the thermistor
The electrical insulation between the lead wires 4 is further improved by coating with the coating portion 7b of the external lead cord 7 to improve the adhesion to the inner surface of the ceramic body 5 .

【0014】従って、水分による電食現象の発生を防止
することができる。
Therefore, the occurrence of the electrolytic corrosion phenomenon due to moisture can be prevented.

【0015】[0015]

【実施例】図1は、本考案の一実施例におけるサーミス
タ温度センサ1の断面図である。サーミスタ素子2とリ
ード線4の引き出し部はガラス封止体3に溶封され、ガ
ラス封止体3とフアイン・セラミックス,強化ガラス等
から成るセラミック体5とは融着し一体で形成してい
る。前記サーミスタは例えば、特開昭57−18763
0号に開示されている。
FIG. 1 is a sectional view of a thermistor temperature sensor 1 according to an embodiment of the present invention. The lead-out portion of the thermistor element 2 and the lead wire 4 is sealed by a glass sealing body 3, and the glass sealing body 3 and a ceramic body 5 made of fine ceramics, tempered glass or the like are fused and integrally formed. . The thermistor is disclosed, for example, in Japanese Patent Application Laid-Open No. 57-18763.
No. 0.

【0016】サーミスタのリード線4は、ポリイミド樹
脂等の絶縁材から成る保護チューブ6でセラミック体5
のリード線貫通孔の最奥部まで被覆されている。
The lead wire 4 of the thermistor is connected to a ceramic body 5 by a protective tube 6 made of an insulating material such as a polyimide resin.
Of the lead wire through hole.

【0017】上記リード線4と外部引き出しコード7の
導体7aは、スポット溶接等で接続される。また、導体
7aはニッケル線等の電気溶接が可能な撚線で構成され
ている。
The lead wire 4 and the conductor 7a of the external lead cord 7 are connected by spot welding or the like. The conductor 7a is made of a stranded wire such as a nickel wire that can be electrically welded.

【0018】外部引き出しコード7の被覆部7bは、低
温の雰囲気に設置される場合は耐熱ビニル系の絶縁体か
ら成り、100℃以上の高温の雰囲気に設置される場合
は弗素樹脂系の絶縁体で形成されている。
The covering portion 7b of the external drawer cord 7 is made of a heat-resistant vinyl-based insulator when installed in a low-temperature atmosphere, and a fluororesin-based insulator when installed in a high-temperature atmosphere of 100 ° C. or more. It is formed with.

【0019】上記の導体7aと保護チューブ6の外径は
略同じで、被覆部7bを押し出し、前記サーミスタのリ
ード線4と外部引き出しコード7の導体7aとの接続部
8およびリード線4の保護チューブ6を被覆してサーミ
スタ温度センサを構成している。
The outer diameters of the conductor 7a and the protective tube 6 are substantially the same, and the covering portion 7b is pushed out to protect the connection portion 8 between the lead wire 4 of the thermistor and the conductor 7a of the external lead cord 7 and protection of the lead wire 4. The thermistor temperature sensor 1 is constituted by covering the tube 6.

【0020】図2は本考案の他の実施例の断面図であっ
て、図1と同様の構成になっているが、セラミック体5
を小形にするためセラミック体5の後部までの保護チュ
ーブ6を被覆部7bで被覆した構造となっている。
FIG. 2 is a sectional view of another embodiment of the present invention, which has the same structure as that of FIG.
Has a structure in which the protective tube 6 up to the rear of the ceramic body 5 is covered with a covering portion 7b in order to reduce the size.

【0021】[0021]

【考案の効果】以上説明したように本考案によれば、サ
ーミスタのガラス封止体から引き出されるリード線は保
護チューブにより線間絶縁されているので、線間の沿面
距離が長くなり絶縁不良による故障が生じ難い。
As described above, according to the present invention, since the lead wire drawn from the glass seal of the thermistor is insulated between the wires by the protective tube, the creepage distance between the wires becomes longer and insulation failure occurs. Failure is unlikely to occur.

【0022】リード線と外部引き出しコードの接続部は
コードの被覆部で電気絶縁され、セラミック体の内面と
外部引き出しコードの被覆部との密着性を良くすること
により、2本のリード線間の電気絶縁性が向上する。
The connecting portion between the lead wire and the external lead- out cord is electrically insulated by the covering portion of the cord, and is connected to the inner surface of the ceramic body.
By improving the adhesion between the external lead cord and the covering portion, the electrical insulation between the two lead wires is improved.

【0023】従って、水分によるリード線の電気腐食を
防止する効果が大きく、熱応答性の良い機械的強度に優
れた信頼性の高いサーミスタ温度センサを提供できる。
Accordingly, it is possible to provide a highly reliable thermistor temperature sensor which has a large effect of preventing electrical corrosion of the lead wire due to moisture, has good thermal response, and has excellent mechanical strength.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本考案の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.

【図2】本考案の他の実施例を示す断面図である。FIG. 2 is a sectional view showing another embodiment of the present invention.

【図3】従来例を示す断面図である。FIG. 3 is a sectional view showing a conventional example.

【図4】他の従来例を示す断面図である。FIG. 4 is a sectional view showing another conventional example.

【符号の説明】[Explanation of symbols]

1 サーミスタ温度センサ 2 サーミスタ素子 3 ガラス封止体 4 リード線 5 セラミック体 6 保護チューブ 7,10 外部引き出しコード 7a,10a 導体 7b 被覆部 8 接続部 9 絶縁チューブ 10b 絶縁体 12 補強部DESCRIPTION OF SYMBOLS 1 Thermistor temperature sensor 2 Thermistor element 3 Glass sealing body 4 Lead wire 5 Ceramic body 6 Protective tube 7, 10 External lead- out cord 7a, 10a Conductor 7b Coating part 8 Connecting part 9 Insulating tube 10b Insulator 12 Reinforcing part

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 サーミスタ素子を封止するガラス封止体
2個のリード線貫通孔を有するセラミック体とが一体
に融着して形成されたサーミスタに対して更に前記サー
ミスタ素子のリード線に接続部において外部引き出しコ
ードを接続したサーミスタ温度センサにおいて、 前記サーミスタ素子前記リード線は前記セラミック体
の2個のリード線貫通最奥部まで保護チューブで被
覆され、かつ前記保護チューブは前記外部引き出しコー
ドの被覆部で被覆してなることを特徴とするサーミスタ
温度センサ。
1. A glass sealed body for sealing a thermistor element
And a ceramic body having two lead wire through-holes fused together to form a thermistor .
In thermistor temperature sensor connected to an external drawing code in the connection portion to the lead wire of the thermistor element, the lead wire of the thermistor element is a ceramic body
The thermistor temperature sensor is characterized in that the innermost part of the two lead wire through holes is covered with a protective tube, and the protective tube is covered with a covering part of the external lead cord.
JP2690292U 1992-03-31 1992-03-31 Thermistor temperature sensor Expired - Fee Related JP2558104Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2690292U JP2558104Y2 (en) 1992-03-31 1992-03-31 Thermistor temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2690292U JP2558104Y2 (en) 1992-03-31 1992-03-31 Thermistor temperature sensor

Publications (2)

Publication Number Publication Date
JPH0579902U JPH0579902U (en) 1993-10-29
JP2558104Y2 true JP2558104Y2 (en) 1997-12-17

Family

ID=12206167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2690292U Expired - Fee Related JP2558104Y2 (en) 1992-03-31 1992-03-31 Thermistor temperature sensor

Country Status (1)

Country Link
JP (1) JP2558104Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008151601A (en) * 2006-12-15 2008-07-03 Netsushin:Kk Platinum temperature measuring resistor with element and insulating resin having the same diameter, and manufacturing method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100734788B1 (en) * 2005-11-25 2007-07-04 주식회사 제임스텍 Ntc thermistor temperature sensor and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008151601A (en) * 2006-12-15 2008-07-03 Netsushin:Kk Platinum temperature measuring resistor with element and insulating resin having the same diameter, and manufacturing method therefor

Also Published As

Publication number Publication date
JPH0579902U (en) 1993-10-29

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