JPS6332329A - Temperature detector - Google Patents
Temperature detectorInfo
- Publication number
- JPS6332329A JPS6332329A JP17648986A JP17648986A JPS6332329A JP S6332329 A JPS6332329 A JP S6332329A JP 17648986 A JP17648986 A JP 17648986A JP 17648986 A JP17648986 A JP 17648986A JP S6332329 A JPS6332329 A JP S6332329A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- case
- cylindrical case
- flange
- temperature
- 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.)
- Pending
Links
- 229920005989 resin Polymers 0.000 claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920012287 polyphenylene sulfone Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は給湯機、温水ボイラー、ストレージタンクなど
の缶体に取り付ける温度検出器に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a temperature detector attached to the body of a water heater, hot water boiler, storage tank, or the like.
（ロ）従来の技術
従来、この種の温度検出器としては、感温素子の保護ケ
ースに鉄を使用し、その外表面にグラスライニング加工
を施したものや、保護ケースにステンレス、銅など耐食
性のよい金属を使用するものが一般的である。(B) Conventional technology Traditionally, this type of temperature detector has been made of iron for the protective case of the temperature-sensitive element and has a glass lining on its outer surface, or for the protective case made of stainless steel or copper that is corrosion-resistant. Generally, metals with good quality are used.
しかしながら、前者のものは保護ケースが小型であるた
め、グラスライニング加工が十分に行なわれず、グラス
ライニングのない部分が生じて保護ケースが腐食する問
題があった。また缶体を電気防食する場合にはグラスラ
イニングのない部分にスケールが付着し、熱伝導が妨げ
られる問題があった。一方、後者のものは缶体と保護ケ
ースとが異種金属である場合には接触による電食が生じ
、きらに缶体を電気防食する場合には保護ケースにスケ
ールが付着する問題があった。However, in the former case, since the protective case is small, the glass lining process is not sufficiently performed, and there is a problem in that the protective case is corroded due to the formation of portions without glass lining. Furthermore, when the can body is electrolytically protected, there is a problem in that scale adheres to the portions without the glass lining, impeding heat conduction. On the other hand, in the latter case, when the can body and the protective case are made of different metals, electrolytic corrosion occurs due to contact, and when the can body is electrolytically protected, there is a problem in that scale adheres to the protective case.
そこで、最近の温度検出器は特開昭６１−１１００１９
号公報に記載きれているように、「一端に開口を有する
硬質樹脂製の筒状ケース内に感温素子を収容し、この感
温素子の口出し線を上記開口からケース外に導出した温
度検出器において、上記開口からケース内に可撓性樹脂
を充填し、加熱硬化許せた」ところの温度検出器が用い
られていた。このような検出器では保護ケースの腐食や
電食やスケールの付着などの問題点を解消できるもので
あった。Therefore, the latest temperature detector is JP-A No. 61-110019.
As stated in the publication, "Temperature detection in which a temperature-sensing element is housed in a cylindrical case made of hard resin with an opening at one end, and the lead wire of this temperature-sensing element is led out of the case through the opening. In this case, a temperature sensor was used in which a flexible resin was filled into the case through the opening and allowed to heat and harden. Such a detector could eliminate problems such as corrosion, electrolytic corrosion, and scale adhesion of the protective case.
（ハ）発明が解決しようとする問題点
このように構成された温度検出器では、この温度検出器
を長期間にわたって温水中に浸して使用すると、樹脂が
吸水し、ケース内に水が浸入してしまい感温素子がこの
水分で腐食してしまうものであった。(c) Problems to be Solved by the Invention In a temperature sensor configured in this way, if the temperature sensor is immersed in hot water for a long period of time, the resin will absorb water and water will seep into the case. As a result, the temperature sensing element would be corroded by this moisture.
断る問題点に鑑み本発明は水の浸入による感温素子の腐
食を防止できると共に耐久性のよい温度検出器を提供す
るものである。In view of the above problems, the present invention provides a temperature sensor that can prevent corrosion of the temperature sensing element due to water intrusion and has good durability.
（ニ）問題点を解決するための手段
本発明の温度検出器は、一端が閉じ、他端にフランジ部
を備え、かつ胴部に伸縮部を備える金属製の筒状ケース
と、前記フランジ部に設ける孔と、この筒状ケースの内
周面及び外周面全体を被覆する樹脂と、この樹脂で被覆
された筒状ケースに収納される感温素子と、この筒状ケ
ース内に充填される充填材とを有するものである。(d) Means for Solving Problems The temperature sensor of the present invention includes a metal cylindrical case that is closed at one end, has a flange section at the other end, and has an expandable section at the body, and the flange section. a hole provided in the cylindrical case, a resin covering the entire inner peripheral surface and outer peripheral surface of the cylindrical case, a temperature sensing element housed in the cylindrical case covered with this resin, and a temperature sensing element filled in the cylindrical case. It has a filling material.
（ホ）作用
以上のように構成された温度検出器では、フランジ部に
設けた孔を介して樹脂が筒状ケースの内外周面に充分に
回り被覆不良を防止できる。また、伸縮部で樹脂の熱膨
張率と金属の熱膨張率との違いによるひずみを吸収でき
、温水の急激な温度変化による樹脂と金属との剥離を抑
制できるものである。(E) Function In the temperature sensor constructed as described above, the resin can sufficiently cover the inner and outer circumferential surfaces of the cylindrical case through the holes provided in the flange portion, thereby preventing coating defects. In addition, the expansion/contraction portion can absorb strain due to the difference between the coefficient of thermal expansion of the resin and the coefficient of thermal expansion of the metal, and can suppress separation of the resin and the metal due to rapid temperature changes in hot water.
（へ）実施例
以下本発明の実施例を図面に基づいて説明する。第１図
は本発明による温度検出器の断面図である。１は一端２
が閉じている金属製の筒状ケースであり、他端３は開い
ていると共に、この他端にはフランジ４が設けられてい
る。このフランジ４には第２図の正面図に示すように孔
５が設けられている。６は筒状ケース１の胴部に設けら
れた伸縮部であり、ジャバラ構造など伸縮が可能な構造
であればよい。(f) Examples Examples of the present invention will now be described based on the drawings. FIG. 1 is a sectional view of a temperature sensor according to the present invention. 1 is one end 2
It is a metal cylindrical case with a closed end 3 and an open end 3 with a flange 4 provided at the other end. This flange 4 is provided with a hole 5 as shown in the front view of FIG. Reference numeral 6 denotes an extensible portion provided in the body of the cylindrical case 1, and any structure that can be expanded or contracted, such as a bellows structure, may be used.
７は筒状ケース１の内面及び外面を被覆する樹脂であり
、この被覆の行ない方としては、筒状ケース１を金型内
に固定した後、ＰＥ５（ポリエーテル・サルフオン）、
ＰＰ５（ポリフエニレンサルフオン）、またはフッ素樹
脂等を注入（射出成形）して行なうものである。この時
、この樹脂はフランジ部４の孔５を介して筒状ケース１
の外面及び内面に自由に流れるので、樹脂の注入ゲート
は筒状ケース１の外面及び内面のいづれにも設けること
ができる。従って、筒状ケース１の外面側の樹脂と内面
側の樹脂とは孔５を介して充分に結合するものである。7 is a resin that coats the inner and outer surfaces of the cylindrical case 1. This coating is carried out after the cylindrical case 1 is fixed in a mold, and then PE5 (polyether sulfonate),
This is done by injecting (injection molding) PP5 (polyphenylene sulfone) or fluororesin. At this time, this resin passes through the hole 5 of the flange portion 4 into the cylindrical case 1.
Since the resin flows freely on the outer and inner surfaces of the cylindrical case 1, the resin injection gate can be provided on both the outer and inner surfaces of the cylindrical case 1. Therefore, the resin on the outer surface of the cylindrical case 1 and the resin on the inner surface of the cylindrical case 1 are sufficiently bonded through the holes 5.
８は感温素子であり、二本のリード線９，１０を有して
いる。尚、リード線１０にはリード線９との短絡を防止
するための絶縁チューブ１１を被せている。このチュー
ブはリード線９に被せてもよいものである。8 is a temperature sensing element, which has two lead wires 9 and 10. Note that the lead wire 10 is covered with an insulating tube 11 to prevent short circuit with the lead wire 9. This tube may be placed over the lead wire 9.
１２は充填材であり、エポキシ樹脂層、アルミナ、マグ
ネシア等を用いている。Reference numeral 12 represents a filler, which is made of an epoxy resin layer, alumina, magnesia, or the like.
このように本発明の温度検出器では、筒状ケース１の外
面及び内面を樹脂で被覆している。外面の被覆で缶体内
でのスケールの付着や電食を防止することができる。ま
た内面の被覆で感温素子８のリード線９，１０が金属製
の筒状ケース１に接触するのを防止でき、感温素子１の
収納時はリード線９．１０間のショートを注意するのみ
でよく、作業性が向上するものである。As described above, in the temperature sensor of the present invention, the outer and inner surfaces of the cylindrical case 1 are coated with resin. Coating the outer surface can prevent scale adhesion and electrolytic corrosion inside the can. In addition, the inner surface coating can prevent the lead wires 9 and 10 of the temperature sensing element 8 from coming into contact with the metal cylindrical case 1, so be careful not to short between the lead wires 9 and 10 when storing the temperature sensing element 1. Only one step is required, which improves work efficiency.
さらに、ヒートショック時などの急激な温度変化が生じ
た時には金属と樹脂との熱による線膨張率の差を伸縮部
６の伸縮で吸収することができ、線膨張率の差から生じ
る金属面と樹脂面との剥離を防止することができる。Furthermore, when a sudden temperature change occurs such as during a heat shock, the difference in linear expansion coefficient due to heat between the metal and resin can be absorbed by the expansion and contraction of the expansion/contraction part 6, and the metal surface caused by the difference in linear expansion coefficient can be absorbed. Peeling from the resin surface can be prevented.
（ト）発明の効果
本発明による温度検出器は一端が閉じ、他端にフランジ
部を備え、かつ胴部に伸縮部を備える金属製の筒状ケー
スと、前記フランジ部に設ける孔と、この筒状ケースの
内周面及び外周面全体を被覆する樹脂と、この樹脂で被
覆された筒状ケースに収納される感温素子と、この筒状
ケース内に充填される充填材とを有するので、この温度
検出器にヒートショックなどの急激な温度変化が与えら
れても、筒状ケースの熱による線膨張率と被覆された樹
脂の熱による線膨張率との違いによるひずみを伸縮部が
吸収する。従って、熱による線膨張率の違いによって生
じる筒状ケース（金属）と樹脂との剥離を抑制すること
ができる。また筒状ケースのフランジ部の孔を介して外
周面に被覆きれた樹脂と内周面に被覆された樹脂とが結
合しており、外周面と内周面との温度差による樹脂の変
形を抑制できるものである。(G) Effects of the Invention The temperature sensor according to the present invention includes a metal cylindrical case that is closed at one end, has a flange at the other end, and has an expandable section at the body, and a hole provided in the flange. It has a resin that covers the entire inner peripheral surface and outer peripheral surface of the cylindrical case, a temperature sensing element that is housed in the cylindrical case covered with this resin, and a filler that is filled in the cylindrical case. Even if a rapid temperature change such as a heat shock is applied to this temperature sensor, the elastic part absorbs the strain caused by the difference between the linear expansion coefficient due to heat of the cylindrical case and the linear expansion coefficient due to heat of the coated resin. do. Therefore, it is possible to suppress separation between the cylindrical case (metal) and the resin due to a difference in linear expansion coefficient due to heat. In addition, the resin fully coated on the outer circumferential surface and the resin coated on the inner circumferential surface are combined through the holes in the flange of the cylindrical case, preventing deformation of the resin due to temperature differences between the outer circumferential surface and the inner circumferential surface. It is something that can be suppressed.
第１図は本発明の実施例を示す温度検出器の断面図、第
２図は第１図に示した筒状ケースのプランジ部を示す正
面図である。
１・・・筒状ケース、 ４・・・フランジ、 ５・
・・孔、６・・・伸縮部、 ７・・・樹脂、 ８・・・
感温素子、 １２・・・充填材。
出願人 三洋電機株式会社外１名
代理人 弁理士 西野卓嗣 外１名
第１図
第２図FIG. 1 is a cross-sectional view of a temperature detector showing an embodiment of the present invention, and FIG. 2 is a front view showing a plunge portion of the cylindrical case shown in FIG. 1... Cylindrical case, 4... Flange, 5.
...hole, 6...expandable part, 7...resin, 8...
Temperature sensing element, 12...filling material. Applicant: Sanyo Electric Co., Ltd. and one other agent Patent attorney Takuji Nishino and one other person Figure 1 Figure 2
Claims (1)
部に伸縮部を備える金属製の筒状ケースと、前記フラン
ジ部に設ける孔と、この筒状ケースの内周面及び外周面
全体を被覆する樹脂と、この樹脂で被覆された筒状ケー
スに収納される感温素子と、この筒状ケース内に充填さ
れる充填材とを有することを特徴とする温度検出器。(1) A metal cylindrical case that is closed at one end, has a flange at the other end, and has a telescopic section on its body, a hole provided in the flange, and an inner and outer peripheral surface of the cylindrical case. 1. A temperature sensor comprising a resin covering the entire body, a temperature sensing element housed in a cylindrical case covered with the resin, and a filler filled in the cylindrical case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17648986A JPS6332329A (en) | 1986-07-25 | 1986-07-25 | Temperature detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17648986A JPS6332329A (en) | 1986-07-25 | 1986-07-25 | Temperature detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6332329A true JPS6332329A (en) | 1988-02-12 |
Family
ID=16014560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17648986A Pending JPS6332329A (en) | 1986-07-25 | 1986-07-25 | Temperature detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6332329A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0477148U (en) * | 1990-11-19 | 1992-07-06 | ||
| US5586105A (en) * | 1992-11-12 | 1996-12-17 | Matsushita Electric Industrial Co., Ltd. | Optical disc clamp mechanism and adapter for use in an optical disc apparatus |
| JP2013137232A (en) * | 2011-12-28 | 2013-07-11 | Mitsubishi Materials Corp | Temperature sensor device |
-
1986
- 1986-07-25 JP JP17648986A patent/JPS6332329A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0477148U (en) * | 1990-11-19 | 1992-07-06 | ||
| US5586105A (en) * | 1992-11-12 | 1996-12-17 | Matsushita Electric Industrial Co., Ltd. | Optical disc clamp mechanism and adapter for use in an optical disc apparatus |
| US5646934A (en) * | 1992-11-12 | 1997-07-08 | Matsushita Electric Industrial Co., Ltd. | Adapter and adapter system for playback of a compact disc and a mini disc in an optical disc apparatus |
| US5751688A (en) * | 1992-11-12 | 1998-05-12 | Matsushita Electric Industrial Co., Ltd. | Optical disc clamp mechanism for use in selectively clamping a mini disc or a compact disc in an optical disc apparatus |
| JP2013137232A (en) * | 2011-12-28 | 2013-07-11 | Mitsubishi Materials Corp | Temperature sensor device |
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