JPH0610264Y2 - Platinum thermometer body - Google Patents
Platinum thermometer bodyInfo
- Publication number
- JPH0610264Y2 JPH0610264Y2 JP1988006495U JP649588U JPH0610264Y2 JP H0610264 Y2 JPH0610264 Y2 JP H0610264Y2 JP 1988006495 U JP1988006495 U JP 1988006495U JP 649588 U JP649588 U JP 649588U JP H0610264 Y2 JPH0610264 Y2 JP H0610264Y2
- Authority
- JP
- Japan
- Prior art keywords
- platinum resistance
- resistance element
- lead wire
- tube
- platinum
- 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 - Lifetime
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
【考案の詳細な説明】 （考案の分野） 本考案は、リード線端に白金抵抗素子が取り付けられ、
その白金抵抗素子が保護体に覆われて構成される白金測
温抵抗体に関する。[Detailed Description of the Invention] (Field of the Invention) In the present invention, a platinum resistance element is attached to a lead wire end,
The present invention relates to a platinum resistance temperature detector configured such that the platinum resistance element is covered with a protective body.
（従来技術とその問題点） この種の白金測温抵抗体としては、例えば、第２図に示
すようなものがある。(Prior art and its problems) As this type of platinum resistance temperature detector, for example, there is one as shown in FIG.
図において、符号１０１は白金抵抗素子であり、この白
金抵抗素子１０１がステンレス製等の金属管よりなる保
護体１０２に納められ、この保護体１０２から白金抵抗
素子１０１に接続されるリード線１０３が延びだし、こ
のリード線１０３は塩化ビニール樹脂よりなる被覆材１
０４により被覆されている。In the figure, reference numeral 101 is a platinum resistance element, the platinum resistance element 101 is housed in a protective body 102 made of a metal tube such as stainless steel, and a lead wire 103 connected from the protective body 102 to the platinum resistance element 101 is provided. The lead wire 103 extends, and the lead wire 103 is made of vinyl chloride resin.
It is covered with 04.
そして、この白金測温抵抗体は、保護体１０２及びそれ
に連続する被覆材１０４で覆われるリード線１０３部分
が、被測温液体中に浸漬されるようにして、液体の測温
に使用される。Then, this platinum resistance temperature detector is used for temperature measurement of the liquid such that the lead wire 103 portion covered with the protective body 102 and the covering material 104 continuous with the protection body 102 is immersed in the temperature measurement liquid. .
しかしながら、従来の白金測温抵抗体は、その白金抵抗
素子１０１を覆う保護体１０２がステンレス等の金属管
により形成されていたので、耐薬品性、耐食性が低いと
いう問題点があった。However, in the conventional platinum resistance temperature detector, since the protective body 102 covering the platinum resistance element 101 is formed of a metal tube such as stainless steel, there is a problem that chemical resistance and corrosion resistance are low.
また、同様に被覆材１０４も耐薬品性、耐食性が低く、
さらに耐熱性も十分でないという問題点があった。Similarly, the coating material 104 also has low chemical resistance and corrosion resistance,
Further, there is a problem that the heat resistance is not sufficient.
（考案の目的） 本考案は、このような事情に鑑みてなされたものであっ
て、耐薬品性、耐食性、耐熱性に優れ、安定して長期間
の使用が行え、かつ、製造容易に得られる白金測温抵抗
体を提供することを目的とする。(Purpose of the Invention) The present invention has been made in view of such circumstances, and is excellent in chemical resistance, corrosion resistance, and heat resistance, can be stably used for a long period of time, and can be easily manufactured. An object of the present invention is to provide a platinum resistance thermometer sensor.
（考案の構成と効果） 本考案は、このような目的を達成するために、白金測温
抵抗体を、リード線端に白金抵抗素子を取り付け、前記
リード線をフッ素樹脂よりなる被覆材により被覆し、前
記白金抵抗素子部分にフッソ樹脂よりなる第１のチュー
ブを装着するとともに、さらに、その外周にフッソ樹脂
よりなり前記第１のチューブより熱変形温度が高い第２
のチューブを装着し、前記第１と第２のチューブを順次
加熱変形して前記白金抵抗素子部分を覆うように２層構
造の保護体を設けてなる構成した。(Structure and Effect of the Invention) In order to achieve such an object, the present invention attaches a platinum resistance thermometer to a platinum resistance element at the end of a lead wire, and coats the lead wire with a covering material made of fluororesin. Then, a first tube made of a fluorine resin is attached to the platinum resistance element portion, and further, a second tube made of a fluorine resin and having a heat distortion temperature higher than that of the first tube is attached to the outer periphery thereof.
The tube is attached, and the first and second tubes are sequentially heated and deformed to provide a protective body having a two-layer structure so as to cover the platinum resistance element portion.
この構成によれば、使用に際して液体内に浸漬される保
護体及びそれに連続するリード線の被覆材による被覆部
分が、耐薬品性、耐食性、耐熱性に優れるフッ素樹脂に
より形成され、液体からの化学的、熱的作用を受けにく
い。According to this configuration, the protector and the lead wire covering portion that is continuous with the protector that is immersed in the liquid at the time of use are formed of a fluororesin having excellent chemical resistance, corrosion resistance, and heat resistance, and are protected from chemicals from the liquid. Less susceptible to thermal and thermal effects.
とくに、白金抵抗素子部分は２層の保護層により覆われ
ているのでその保護が確実であり、しかも、２層の保護
層は第１と第２のチューブが順次加熱変形されることで
金型等を用いることなく容易に形成される。In particular, the platinum resistance element portion is covered with the two protective layers so that the protection is reliable. Moreover, the two protective layers are formed by heating and deforming the first and second tubes sequentially. It is easily formed without using the above.
したがって本考案によれば、耐薬品性、耐食性、耐熱性
に優れ、安定して長期間の使用が行える白金測温抵抗体
を製造容易に得ることができるようになった。Therefore, according to the present invention, it has become possible to easily obtain a platinum resistance thermometer which has excellent chemical resistance, corrosion resistance, and heat resistance and can be stably used for a long period of time.
（実施例の説明） 以下、本考案の実施例を図面を参照して詳細に説明す
る。第１図は本考案の実施例に係る白金測温抵抗体の断
面構成図である。(Description of Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of a platinum resistance temperature detector according to an embodiment of the present invention.
図において、符号１は白金抵抗素子、２のそれぞれは白
金抵抗素子１に接続されるリード線であり、リード線２
それぞれはポリテトラフルオロエチレン（ＰＴＦＥ）樹
脂よりなる被覆材３により被覆されている。一本のリー
ド線２の被覆材３に至る部分までには、絶縁のためのポ
リイミド（ＰＩ）樹脂チューブ６が被嵌されている。In the figure, reference numeral 1 is a platinum resistance element, and 2 is a lead wire connected to the platinum resistance element 1, respectively.
Each is coated with a coating material 3 made of polytetrafluoroethylene (PTFE) resin. A polyimide (PI) resin tube 6 for insulation is fitted up to the portion of the lead wire 2 that extends to the covering material 3.
そして、白金抵抗素子１とリード線２の白金抵抗素子１
との接続部分とが一体に、ポリテトラフルオロエチレン
−パーフルオロアルキルビニルエーテル（ＰＦＡ）樹脂
よりなる第１保護体４により被覆され、さらにその第１
保護体４の外周にＰＴＦＥ樹脂よりなる第二保護体５が
設けられている。Then, the platinum resistance element 1 of the platinum resistance element 1 and the lead wire 2
The connection portion with and is integrally covered with a first protective body 4 made of polytetrafluoroethylene-perfluoroalkyl vinyl ether (PFA) resin,
A second protective body 5 made of PTFE resin is provided on the outer periphery of the protective body 4.
上記のようにして、白金測温抵抗体は、使用に際して液
体内に浸漬された時に液体に触れる第一及び第二保護体
４，５と被覆材３部分とが、耐薬品性、耐食性、耐熱性
に優れるフッ素樹脂により形成される構成となってい
る。As described above, in the platinum resistance thermometer, the first and second protective bodies 4 and 5 and the covering material 3 portion which come into contact with the liquid when immersed in the liquid during use have chemical resistance, corrosion resistance and heat resistance. It is made of a fluororesin having excellent properties.
上記実施例の構造について簡単に説明する。The structure of the above embodiment will be briefly described.
白金抵抗素子１の保護体による被覆は、まず白金抵抗素
子１及びそれに連続するリード線２部分に厚肉のＰＦＡ
樹脂チューブ（第１のチューブ）を被嵌し、さらに、そ
の外周に薄肉のＰＴＦＥ樹脂チューブ（第２のチュー
ブ）を被嵌し、加熱して行う。The platinum resistance element 1 is covered with a protective material by first covering the platinum resistance element 1 and the lead wire 2 portion continuous with the platinum resistance element 1 with a thick PFA.
A resin tube (first tube) is fitted, and a thin PTFE resin tube (second tube) is fitted on the outer periphery of the resin tube, and heating is performed.
この加熱により、ＰＴＦＥ樹脂よりＰＦＡ樹脂の融点温
度が低いので、先にＰＦＡ樹脂チューブが溶融を始めて
白金抵抗素子１とリード線２部分を密封状態に被覆し、
その溶融とともにＰＴＦＥ樹脂チューブが熱収縮して、
第一と第二の保護体４，５が固定状態とされる。Due to this heating, the melting point temperature of the PFA resin is lower than that of the PTFE resin, so that the PFA resin tube starts melting first and the platinum resistance element 1 and the lead wire 2 are covered in a sealed state.
The PTFE resin tube heat-shrinks with the melting,
The first and second protectors 4 and 5 are fixed.
上記製造方法によれば、保護体の取り付けが、ＰＦＡ樹
脂チューブとＰＴＦＥ樹脂チューブとを白金抵抗素子１
に対して所定位置に二重に被嵌して加熱することによ
り、金型等を用いることなく簡単に行える。According to the above manufacturing method, the PFA resin tube and the PTFE resin tube are attached to the platinum resistance element 1 in order to attach the protective body.
On the other hand, by double fitting at a predetermined position and heating, it can be easily performed without using a mold or the like.
従来例に示した構成のものでは、ステンレス製の保護体
１０２を得るのに、ａ部分を熔接する作業を必要とし、
保護体１０２の取り付けの際には、保護体１０２からリ
ード線１０３が引きだされる部分をゴムブッシュｂ等で
封止するもので、この封止を精度良く行うのは非常に手
間のかかるものであった。In the structure shown in the conventional example, in order to obtain the protective body 102 made of stainless steel, it is necessary to weld the part a.
When the protective body 102 is attached, the portion where the lead wire 103 is pulled out from the protective body 102 is sealed with a rubber bush b or the like, and it is very troublesome to perform this sealing with high accuracy. Met.
第１図は本考案の実施例に関し、白金測温抵抗体の断面
構成図である。 第２図は従来例の構成図である。 １は白金抵抗素子、２はリード線、３は被覆材、 ４は第一保護体、５は第二保護体。FIG. 1 is a cross-sectional configuration diagram of a platinum resistance temperature detector according to an embodiment of the present invention. FIG. 2 is a block diagram of a conventional example. Reference numeral 1 is a platinum resistance element, 2 is a lead wire, 3 is a covering material, 4 is a first protective body, and 5 is a second protective body.
Claims (1)
し、 前記白金抵抗素子部分にフッソ樹脂よりなる第１のチュ
ーブを装着するとともに、さらに、その外周にフッソ樹
脂よりなり前記第１のチューブより熱変形温度が高い第
２のチューブを装着し、前記第１と第２のチューブを順
次加熱変形して前記白金抵抗素子部分を覆うように２層
構造の保護体を設けてなることを特徴とする白金測温抵
抗体。1. A platinum resistance element is attached to an end of a lead wire, the lead wire is covered with a covering material made of fluororesin, and a first tube made of fluorine resin is attached to the platinum resistance element portion. A second tube made of fluorine resin and having a heat deformation temperature higher than that of the first tube is attached to the outer periphery thereof, and the first and second tubes are sequentially heated and deformed to cover the platinum resistance element portion. A platinum resistance temperature detector characterized by being provided with a layered protective body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988006495U JPH0610264Y2 (en) | 1988-01-21 | 1988-01-21 | Platinum thermometer body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988006495U JPH0610264Y2 (en) | 1988-01-21 | 1988-01-21 | Platinum thermometer body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01112432U JPH01112432U (en) | 1989-07-28 |
| JPH0610264Y2 true JPH0610264Y2 (en) | 1994-03-16 |
Family
ID=31210722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988006495U Expired - Lifetime JPH0610264Y2 (en) | 1988-01-21 | 1988-01-21 | Platinum thermometer body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0610264Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6830278B1 (en) * | 2019-12-24 | 2021-02-17 | 株式会社大泉製作所 | Temperature sensor |
| JP6895186B1 (en) * | 2019-12-24 | 2021-06-30 | 株式会社大泉製作所 | Temperature sensor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424078A (en) * | 1977-07-25 | 1979-02-23 | Tokyo Gas Co Ltd | Method of producing temperature detector and temperature detector |
-
1988
- 1988-01-21 JP JP1988006495U patent/JPH0610264Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01112432U (en) | 1989-07-28 |
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