JP7423421B2 - Piping temperature detection device - Google Patents
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- JP7423421B2 JP7423421B2 JP2020092103A JP2020092103A JP7423421B2 JP 7423421 B2 JP7423421 B2 JP 7423421B2 JP 2020092103 A JP2020092103 A JP 2020092103A JP 2020092103 A JP2020092103 A JP 2020092103A JP 7423421 B2 JP7423421 B2 JP 7423421B2
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- 238000001514 detection method Methods 0.000 title claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 33
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229920002050 silicone resin Polymers 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Description
本発明は、空気調和装置等に配設され且つ温水、冷水又は冷媒等が流動せしめられる配管の表面温度を検出するための配管温度検出装置に関する。 The present invention relates to a pipe temperature detection device for detecting the surface temperature of a pipe disposed in an air conditioner or the like and through which hot water, cold water, refrigerant, or the like flows.
下記特許文献１乃至３には、空気調和装置等に配設され且つ温水、冷水又は冷媒等が流動せしめられる配管の表面温度を検出するための配管温度検出装置が開示されている。かかる配管温度検出装置は、夫々別個に構成されている温度検出器と装着クリップ部材とを具備している。温度検出器の典型例は、サ－ミスタ素子、このサーミスタ素子に接続された一対のリード線及びケース部材を含んでおり、サーミスタ素子及び一対のリード線の先端部はケース部材内に収納されている。ケース部材は、銅薄板の如き適宜の材料から形成されていて、その外周面は円筒形状である。ステンレス鋼板の如き金属薄板から形成されている装着クリップ部材は、温度検出器のケース部材の一部を収納するための収納部と表面の温度を検出すべき配管に被嵌される被嵌部とを含んでいる。下記特許文献１に開示されている配管温度検出器においては、装着クリップ部材の収納部は横断面において１８０度を超えて延在する円弧形状であり、装着クリップ部材の被嵌部は横断面において収納部の片端縁から延在する円弧形状の第一の部分と収納部の他端縁から延在する円弧形状の第二の部分を有する。被嵌部を構成する第一の部分と第二の部分との周方向延在長さは実質上同一である。装着クリップ部材の収納部の内周面の曲率半径は温度検出器のケース部材の外周面の曲率半径と同一であり、装着クリップ部材の被嵌部の第一の部分及び第二の部分の内周面の曲率半径は配管の外周面の曲率半径と同一である。 Patent Documents 1 to 3 listed below disclose piping temperature detection devices for detecting the surface temperature of piping installed in an air conditioner or the like and through which hot water, cold water, refrigerant, or the like flows. Such a pipe temperature detection device includes a temperature detector and a mounting clip member, each of which is constructed separately. A typical example of a temperature sensor includes a thermistor element, a pair of lead wires connected to the thermistor element, and a case member, and the ends of the thermistor element and the pair of lead wires are housed in the case member. There is. The case member is made of a suitable material such as a thin copper plate, and has a cylindrical outer peripheral surface. The attachment clip member, which is made of a thin metal plate such as a stainless steel plate, has a storage part for storing a part of the case member of the temperature sensor, and a fitting part to be fitted into the pipe whose surface temperature is to be detected. Contains. In the piping temperature sensor disclosed in Patent Document 1 below, the storage portion of the mounting clip member has an arc shape extending over 180 degrees in the cross section, and the fitted portion of the mounting clip member has a circular arc shape extending over 180 degrees in the cross section. It has an arc-shaped first portion extending from one edge of the storage portion and a second arc-shaped portion extending from the other edge of the storage portion. The circumferential extension lengths of the first portion and the second portion constituting the fitted portion are substantially the same. The radius of curvature of the inner peripheral surface of the housing part of the mounting clip member is the same as the radius of curvature of the outer peripheral surface of the case member of the temperature sensor, and The radius of curvature of the circumferential surface is the same as the radius of curvature of the outer circumferential surface of the pipe.
配管温度検出装置の使用に際しては、最初に装着クリップ部材の収納部内に温度検出器の一部、更に詳細にはケース部材の長手方向の一部、を収納し、次いで、装着クリップ部材の被嵌部を配管の外周面に被嵌する。装着クリップ部材の被嵌部を配管の外周面に被嵌する際には、被嵌部の第一の部分と第二の部分とを弾性的に変位せしめながら両者間に配管を位置せしめて配管の外周面上に被嵌部を弾性的に被嵌する。 When using the piping temperature detection device, first store a part of the temperature sensor, more specifically, a part of the case member in the longitudinal direction, in the storage part of the mounting clip member, and then insert the mounting clip member into the housing. The part is fitted onto the outer peripheral surface of the pipe. When fitting the fitting part of the mounting clip member onto the outer peripheral surface of the pipe, the first part and the second part of the fitting part are elastically displaced and the pipe is positioned between them. The fitting part is elastically fitted onto the outer circumferential surface of.
而して、上述したとおりの従来の配管温度検出装置には、装着クリップ部材の収納部に温度検出器の一部を所要とおりに収納し、しかる後に装着クリップ部材の被嵌部を配管の外周面に被嵌することが必要であり、配管に対する装着が煩雑であり、そしてまた装着クリップ部材に対して温度検出器が固定されていないので配管の外周面に対して温度検出器を所要とおりに位置付けることが必ずしも容易でない、という問題がある。 Therefore, in the conventional pipe temperature detection device as described above, a part of the temperature sensor is stored as required in the storage part of the mounting clip member, and then the fitted part of the mounting clip member is inserted around the outer periphery of the pipe. It is necessary to fit the temperature sensor onto the outer surface of the pipe, making it complicated to attach it to the pipe, and because the temperature sensor is not fixed to the mounting clip member, it is difficult to attach the temperature sensor to the outer circumferential surface of the pipe as required. The problem is that positioning is not always easy.
本発明は、上記事実に鑑みてなされたものであり、その主たる技術的課題は、配管に対して容易且つ迅速に装着することができると共に配管の外周面に対して温度検出器を所要とおりに充分精密に位置付けることができる、新規且つ改良された配管温度検出装置を提供することである。 The present invention has been made in view of the above facts, and its main technical problem is to be able to easily and quickly attach a temperature sensor to the outer circumferential surface of the pipe, and to attach a temperature sensor to the outer circumferential surface of the pipe as required. It is an object of the present invention to provide a new and improved pipe temperature sensing device that can be positioned with sufficient precision.
本発明者等は、鋭意研究及び実験の結果、装着クリップ部材の収納部の内周面と装着クリップ部材の収納部に収納された温度検出器の一部の外周面との間に樹脂を充填し、充填樹脂層によって装着クリップ部材の収納部に温度検出器の一部を固定すると共に、装着クリップ部材の被嵌部の第一の部分は周方向に１５０度乃至１９０度の角度範囲に渡って延在し、装着クリップ部材の被嵌部の第二の部分は４０度乃至６０度の角度範囲に渡って延在しており、第一の部分の先端縁と第二の部分の先端縁との間には６０度乃至８０度の角度範囲に渡って間隙が存在する形態にすることによって、上記主たる技術的課題を達成することができることを見出した。 As a result of intensive research and experiments, the present inventors filled the space between the inner peripheral surface of the storage part of the mounting clip member and the outer peripheral surface of a part of the temperature sensor stored in the storage part of the mounting clip member. A part of the temperature sensor is fixed to the housing portion of the mounting clip member by the filled resin layer, and the first portion of the fitted portion of the mounting clip member extends over an angular range of 150 degrees to 190 degrees in the circumferential direction. The second portion of the fitted portion of the attachment clip member extends over an angular range of 40 degrees to 60 degrees, and the distal edge of the first portion and the distal edge of the second portion It has been found that the above main technical problem can be achieved by creating a configuration in which a gap exists over an angular range of 60 degrees to 80 degrees.
即ち、本発明によれば、上記主たる技術的課題を達成する配管温度検出装置として、
サーミスタ素子及び該サーミスタ素子に接続された一対のリード線を含む温度検出器と、該温度検出器の一部を収容する収納部及び表面温度を検出すべき円筒形状の配管に被嵌される被嵌部を含む装着クリップ部材とを具備する配管温度検出装置において、
該装着クリップ部材の該収納部は、横断面において１８０度を超えて延在する円弧形状であり、該装着クリップ部材の該被嵌部は、横断面において該収納部の周方向片端縁から延在する円弧形状の第一の部分と該収納部の周方向他端縁から延在する円弧形状の第二の部分とを有し、
該装着クリップ部材の該被嵌部の該第一の部分は周方向に１５０度乃至１９０度の角度範囲に渡って延在し、該装着クリップ部材の該被嵌部の該第二の部分は４０度乃至６０度の角度範囲に渡って延在しており、該第一の部分の先端縁と該第二の部分の先端縁との間には６０度乃至８０度の角度範囲に渡って間隙が存在し、
該装着クリップ部材の該収納部に収納された該温度検出器の該一部の外周面と該装着クリップ部材の該収納部の内周面との間には充填樹脂層が配設されており、該充填樹脂層によって該装着クリップ部材の該収納部に該温度検出器の該一部が固定されている、
ことを特徴とする配管温度検出装置が提供される。
That is, according to the present invention, as a pipe temperature detection device that achieves the above-mentioned main technical problem,
A temperature sensor including a thermistor element and a pair of lead wires connected to the thermistor element, a storage part that accommodates a part of the temperature sensor, and a cover that is fitted into a cylindrical pipe whose surface temperature is to be detected. A pipe temperature detection device comprising a mounting clip member including a fitting part,
The storage portion of the mounting clip member has an arc shape extending over 180 degrees in the cross section, and the fitted portion of the mounting clip member extends from one circumferential edge of the storage portion in the cross section. a circular arc-shaped first portion extending from the other end edge in the circumferential direction of the storage portion;
The first portion of the fitted portion of the mounting clip member extends circumferentially over an angular range of 150 degrees to 190 degrees, and the second portion of the fitted portion of the mounting clip member extends extending over an angular range of 40 degrees to 60 degrees, and extending over an angular range of 60 degrees to 80 degrees between the leading edge of the first portion and the leading edge of the second portion. There is a gap,
A filling resin layer is disposed between the outer peripheral surface of the part of the temperature sensor stored in the storage part of the mounting clip member and the inner peripheral surface of the storage part of the mounting clip member. , the part of the temperature sensor is fixed to the housing part of the attachment clip member by the filled resin layer;
A piping temperature detection device is provided.
好ましくは、該装着クリップ部材の該被嵌部の該第一の部分及び該第二の部分の内周面の曲率半径は該配管の外周面の曲率半径と同一であり、且つ該装着クリップ部材の該収納部の内周面の曲率半径よりも大きい。該装着クリップ部材の該被嵌部の該第一の部分の先端縁及び該第二の部分の先端縁には、夫々、半径方向外方に延出する案内部が付設されているのが好適である。該装着クリップ部材の該収納部には、該収納部を規定している壁の一部を半径方向内方に突出せしめた突出片が形成されており、そしてまた該装着クリップ部材の該被嵌部には、該被嵌部を規定している壁の一部を半径方向内方に突出せしめた突出片が形成されているのが望ましい。該充填樹脂はエポキシ樹脂又はシリコーン樹脂であり、該装着クリップ部材は金属薄板から形成されているのが好都合である。好適実施形態においては、該温度検出器は該サーミスタ素子及び該一対のリード線の先端部を囲繞する合成樹脂製コートを含み、該コートの一部が該装着クリップ部材の該収納部内に収納されている。 Preferably, the radius of curvature of the inner peripheral surface of the first portion and the second portion of the fitted portion of the mounting clip member is the same as the radius of curvature of the outer peripheral surface of the pipe, and is larger than the radius of curvature of the inner circumferential surface of the storage portion. It is preferable that a guide portion extending radially outward is attached to a distal end edge of the first portion and a distal end edge of the second portion of the fitted portion of the attachment clip member, respectively. It is. The storage portion of the mounting clip member is formed with a protruding piece that protrudes radially inward from a part of the wall defining the storage portion, and the fitting portion of the mounting clip member is formed with a projecting piece that projects radially inward. Preferably, the portion is formed with a protruding piece that causes a part of the wall defining the fitted portion to protrude radially inward. Advantageously, the filling resin is an epoxy resin or a silicone resin and the mounting clip member is formed from sheet metal. In a preferred embodiment, the temperature sensor includes a synthetic resin coat surrounding the thermistor element and the tips of the pair of lead wires, and a portion of the coat is housed in the housing portion of the mounting clip member. ing.
本発明の配管温度検出装置においては、装着クリップ部材の収納部の内周面と装着クリップ部材の収納部に収納された温度検出器の一部の外周面との間には充填樹脂層が配設されていて、充填樹脂層によって装着クリップ部材の収納部内に温度検出器の一部が固定されている故に、単に装着クリップ部材の被嵌部を配管の外周面に被嵌することによって、配管に対して容易且つ迅速に装着することができると共に配管の外周面に対して温度検出器を所要とおりに充分精密に位置付けることができる。加えて、装着クリップ部材の被嵌部の第一の部分は周方向に１５０度乃至１９０度の角度範囲に渡って延在し、装着クリップ部材の被嵌部の第二の部分は４０度乃至６０度の角度範囲に渡って延在しており、第一の部分の先端縁と第二の部分の先端縁との間には６０度乃至８０度の角度範囲に渡って間隙が存在する形態である故に、装着クリップ部材の被嵌部を表面の温度を検出すべき配管の外周面に被嵌する際に、装着クリップ部材の収納部の内周面から充填樹脂層が剥離されてしまうことが効果的に防止される。 In the piping temperature detection device of the present invention, a filled resin layer is disposed between the inner peripheral surface of the storage portion of the mounting clip member and the outer peripheral surface of a part of the temperature sensor stored in the storage portion of the mounting clip member. Since a part of the temperature sensor is fixed in the storage part of the mounting clip member by the filled resin layer, the piping can be removed by simply fitting the fitted part of the mounting clip member onto the outer circumferential surface of the pipe. The temperature sensor can be easily and quickly attached to the pipe, and the temperature sensor can be positioned with sufficient precision as required with respect to the outer peripheral surface of the pipe. Additionally, the first portion of the fitted portion of the attachment clip member extends circumferentially over an angular range of 150 degrees to 190 degrees, and the second portion of the fitted portion of the attachment clip member extends circumferentially over an angular range of 40 degrees to 190 degrees. It extends over an angular range of 60 degrees, and a gap exists between the leading edge of the first part and the leading edge of the second part over an angular range of 60 degrees to 80 degrees. Therefore, when the fitted portion of the mounting clip member is fitted onto the outer peripheral surface of the piping whose surface temperature is to be detected, the filled resin layer may be peeled off from the inner peripheral surface of the housing portion of the mounting clip member. is effectively prevented.
以下、添付図面を参照して本発明に従って構成された配管温度検出装置の好適実施形態について詳述する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a pipe temperature detection device constructed according to the present invention will be described in detail below with reference to the accompanying drawings.
図１及び図２を参照して説明すると、全体を番号２で示す本発明に従って構成された配管温度検出装置は、温度検出器４と装着クリップ部材６とを具備している。 Referring to FIGS. 1 and 2, a pipe temperature sensing device constructed in accordance with the present invention, generally designated by the numeral 2, includes a temperature sensor 4 and a mounting clip member 6. As shown in FIGS.
図１及び図２と共に図３を参照することによって理解される如く、図示の実施形態における温度検出器４はサーミスタ素子８及び一対のリード線１０ａ及び１０ｂを含んでいる。一対のリード線１０ａ及び１０ｂの先端は絶縁被覆が剥離されており、サーミスタ素子８に接続されている。温度検出器としては、サーミスタ素子とこのサーミスタ素子に接続された一対の引き出し線の先端部がガラスによってシールされ、一対の引き出し線が一対のリード線に接続されているＧＲＣ（ｇｌａｓｓ ｓｅａｌｅｄ ｒｅｄｉａｌ ｌｅａｄ ｃｈｉｐ ｔｈｅｒｍｉｓｔｏｒ）型のものも好都合に使用することができる。図示の実施形態においては、サーミスタ素子８と共に一対のリード線１０ａ及び１０ｂの先端部は、耐熱性及び絶縁性に優れ熱伝導率が比較的大きいエポキシ樹脂、殊に低粘度、低弾性率を有するフレキシブルエポキシ樹脂、又はシリコーン樹脂であるのが好都合である合成樹脂製コート１２によって囲繞されている。一対のリード線１０ａ及び１０ｂはコート１２の後端面を超えて延出されており、一対のリード線１０ａ及び１０ｂの延出端は温度検出回路（図示していない）に接続されている。所望ならば、銅薄板の如き金属薄板から形成した前端面が閉じられた円筒形状のケース部材（図示していない）内にコート１２を収納する、或いはケース部材内にサーミスタ素子８及び一対のリード線１０ａ及び１０ｂの先端部を導入した後にケース部材内にコートを構成する合成樹脂を充填することによって、コート１２をケース部材で包囲することもできる。 As can be seen by referring to FIG. 3 in conjunction with FIGS. 1 and 2, temperature sensor 4 in the illustrated embodiment includes a thermistor element 8 and a pair of leads 10a and 10b. The ends of the pair of lead wires 10a and 10b have their insulation coatings peeled off and are connected to the thermistor element 8. A temperature detector is a GRC (glass sealed redial lead chip) in which the thermistor element and the tips of a pair of lead wires connected to the thermistor element are sealed with glass, and the pair of lead wires are connected to the pair of lead wires. (thermistor) type can also be used advantageously. In the illustrated embodiment, the thermistor element 8 and the tips of the pair of lead wires 10a and 10b are made of an epoxy resin that is excellent in heat resistance and insulation and has relatively high thermal conductivity, especially low viscosity and low elastic modulus. It is surrounded by a synthetic resin coat 12, which is conveniently a flexible epoxy or silicone resin. The pair of lead wires 10a and 10b extend beyond the rear end surface of the coat 12, and the extending ends of the pair of lead wires 10a and 10b are connected to a temperature detection circuit (not shown). If desired, the coat 12 may be housed in a cylindrical case member (not shown) with a closed front end formed from a thin metal plate such as a thin copper plate, or the thermistor element 8 and a pair of leads may be placed within the case member. The coat 12 can also be surrounded by a case member by filling the case member with a synthetic resin constituting the coat after introducing the tips of the wires 10a and 10b.
図１及び図２と共に図４及び図５を参照して説明を続けると、図示の実施形態における装着クリップ部材６は、ステンレス鋼薄板の如き適宜の金属薄板から一体に形成されており、収納部１４と被嵌部１６とを有する。収納部１４は、横断面即ち図２において、１８０度の角度範囲を超えて、換言すれば１８０度以上、好ましくは２４０度乃至２６０度である、角度範囲αに渡って延在する円弧形状である。被嵌部１６は、横断面即ち図２において、収納部１４の片端縁から延在する円弧形状の第一の部分１６ａと収納部１４の他端縁から延在する円弧形状の第二の部分１６ｂとを有する。被嵌部１６を構成する第一の部分１６ａと第二の部分１６ｂとの周方向延在長さは同一ではなく、第一の部分１６ａは１５０度乃至１９０度である角度範囲βに渡って延在し、第二の部分１６ｂは４０度乃至６０度である角度範囲γに渡って延在し、そして第一の部分１６ａの先端縁と第二の部分１６ｂの先端縁との間には６０度乃至８０度である角度範囲δに渡って間隙が存在することが重要である。更に、図５を参照することによって理解される如く、被嵌部１６の第一の部分１６ａは、収納部１４から離隔する方向に見て下流側部（収納部１４に対して遠方に位置する部分）において収納部１４から離隔する方向に向って幅が漸次低減されている、換言すれば収納部１４から離隔する方向における下流側部においては両側縁が収納部１４から離隔する方向に向かって漸次幅方向内側に傾斜している、のが好都合である。被嵌部１６の第一の部分１６ａの内周面の曲率半径Ｒ１及び第二の部分１６ｂの内周面の曲率半径Ｒ２は共に、表面温度を検出すべき配管２６の外周面の曲率半径Ｒ４（図６）と実質上同一であるのが好ましい（Ｒ１＝Ｒ２＝Ｒ４）。収納部１４の内周面の曲率半径Ｒ３は上記曲率半径Ｒ１、Ｒ２及びＲ４よりも幾分小さいが上記温度検出器４のコート１２の外周面の曲率範囲Ｒ５よりは幾分大きいのが望ましい（Ｒ１＝Ｒ２＞Ｒ３＞Ｒ５）。 Continuing the description with reference to FIGS. 4 and 5 in conjunction with FIGS. 1 and 2, the attachment clip member 6 in the illustrated embodiment is integrally formed from a suitable sheet metal, such as a sheet of stainless steel, and includes a housing. 14 and a fitted portion 16. The storage portion 14 has an arcuate shape extending over an angular range α of 180 degrees or more, preferably 240 to 260 degrees, in a cross section, that is, in FIG. be. In the cross section, that is, in FIG. 2, the fitted portion 16 includes a first arc-shaped portion 16a extending from one edge of the storage portion 14 and a second arc-shaped portion extending from the other edge of the storage portion 14. 16b. The circumferential extension lengths of the first portion 16a and the second portion 16b constituting the fitted portion 16 are not the same, and the first portion 16a extends over an angular range β of 150 degrees to 190 degrees. The second portion 16b extends over an angular range γ of 40 degrees to 60 degrees, and there is a distal edge between the distal edge of the first portion 16a and the distal edge of the second portion 16b. It is important that the gap exists over an angular range δ which is between 60 degrees and 80 degrees. Furthermore, as can be understood by referring to FIG. In other words, in the downstream side in the direction away from the storage section 14, both side edges are gradually reduced in the direction away from the storage section 14. Advantageously, it slopes gradually inward in the width direction. The radius of curvature R1 of the inner circumferential surface of the first portion 16a of the fitted portion 16 and the radius of curvature R2 of the inner circumferential surface of the second portion 16b are both the radius of curvature R4 of the outer circumferential surface of the pipe 26 whose surface temperature is to be detected. (FIG. 6) is preferred (R1=R2=R4). It is desirable that the radius of curvature R3 of the inner circumferential surface of the storage portion 14 is somewhat smaller than the curvature radii R1, R2, and R4, but somewhat larger than the curvature range R5 of the outer circumferential surface of the coat 12 of the temperature sensor 4 ( R1=R2>R3>R5).
図示の実施形態における装着クリップ部材６は、更に、被嵌部１６の第一の部分１６ａの先端縁から半径方向外方に延出する案内部１８ａ及び被嵌部１６の第二の部分１６ｂの先端部から半径方向外方に延出する案内部１８ｂを含んでいる。図２及び図４を参照することによって明確に理解される如く、収納部１４には収納部１４を規定している壁の一部を半径方向内方に突出せしめた突出片２０（図４）が形成され、同様に被嵌部１６は被嵌部１６を規定している壁の一部を半径方向内方に突出せしめた突出片２２が形成されているのが望ましい。突出片２０は、収納部１４を規定している壁に門形状乃至逆チャンネル形状のスリットを形成し、かかるスリットによって規定させる部位を半径方向内方に突出せしめることによって形成されている。同様に、突出片２２は、被嵌部１６を規定している壁に門形状乃至逆チャンネル形状のスリットを形成し、かかるスリットによって規定させる部位を半径方向内方に突出せしめることによって形成されている。 The attachment clip member 6 in the illustrated embodiment further includes a guide portion 18a extending radially outward from the distal end edge of the first portion 16a of the fitted portion 16, and a guide portion 18a extending radially outward from the distal end edge of the first portion 16a of the fitted portion 16. It includes a guide portion 18b extending radially outward from the tip. As can be clearly understood by referring to FIGS. 2 and 4, the storage section 14 has a protruding piece 20 (FIG. 4) that projects a part of the wall defining the storage section 14 inward in the radial direction. Similarly, it is desirable that the fitted portion 16 is formed with a protruding piece 22 that causes a part of the wall defining the fitted portion 16 to protrude inward in the radial direction. The protruding piece 20 is formed by forming a gate-shaped or inverted channel-shaped slit in the wall defining the storage portion 14, and causing the portion defined by the slit to protrude radially inward. Similarly, the protruding piece 22 is formed by forming a gate-shaped or inverted channel-shaped slit in the wall defining the fitted portion 16, and causing the portion defined by the slit to protrude inward in the radial direction. There is.
図１及び図２に図示する如く、上述した温度検出器４の一部、図示の実施形態においてはコート１２の前半部、が装着クリップ部材６の収納部１４内に望ましくは同心状に位置付けられ、そして収納部１４の内周面とコート１２の外周面との間には合成樹脂が充填され硬化され、かくして充填樹脂層２４が配設される。そして、かかる充填樹脂層２４によって温度検出器４の一部、更に詳しくはコート１２の前半部外周面、が装着クリップ部材６の収納部１４の内周面に固定される。装着クリップ部材６の収納部１４に形成されている突出片２０は充填樹脂層２４によって包囲され、これによって収納部１４と充填樹脂層２４との固着が助長される。充填樹脂層２４を構成する合成樹脂は、耐熱性に優れ且つ比較的大きい熱伝導率を有し、そして更に温度検出器４のコート１２との接合性が良好である、エポキシ樹脂、殊に低粘度、低弾性率を有するフレキシブルエポキシ樹脂、又はシリコーン樹脂であるのが好ましい。図２に明確に図示するとおり、充填樹脂層２４における装着クリップ部材６の収納部１４に囲繞されることなく露呈している表面２４ａは表面温度を検出すべき配管２６の外周面の曲率半径Ｒ４と実施上同一の曲率半径Ｒ６を有する凹状曲面であるのが好都合である（Ｒ４＝Ｒ６）。かような凹状曲面２４ａは、軟化乃至溶融状態の合成樹脂を充填する際に配管２６の外周面に対応した内周面を有する規制枠部材（図示していない）を使用することによって形成することができる。 As shown in FIGS. 1 and 2, a portion of the temperature sensor 4 described above, in the illustrated embodiment the front half of the coat 12, is preferably positioned concentrically within the recess 14 of the attachment clip member 6. Then, a synthetic resin is filled between the inner circumferential surface of the storage portion 14 and the outer circumferential surface of the coat 12 and hardened, thus providing a filled resin layer 24. Then, a part of the temperature sensor 4, more specifically, the outer peripheral surface of the front half of the coat 12, is fixed to the inner peripheral surface of the storage portion 14 of the mounting clip member 6 by the filled resin layer 24. The protruding piece 20 formed in the housing portion 14 of the attachment clip member 6 is surrounded by the filled resin layer 24, thereby promoting the adhesion between the housing portion 14 and the filled resin layer 24. The synthetic resin constituting the filled resin layer 24 is an epoxy resin, especially a low A flexible epoxy resin or silicone resin having low viscosity and low elastic modulus is preferred. As clearly illustrated in FIG. 2, the exposed surface 24a of the mounting clip member 6 in the filled resin layer 24 without being surrounded by the storage portion 14 has a radius of curvature R4 of the outer peripheral surface of the pipe 26 whose surface temperature is to be detected. Advantageously, it is a concave curved surface with a radius of curvature R6 which is practically the same as (R4=R6). Such a concave curved surface 24a can be formed by using a regulating frame member (not shown) having an inner peripheral surface corresponding to the outer peripheral surface of the pipe 26 when filling the synthetic resin in a softened or molten state. Can be done.
図６は、表面温度を検出すべき配管２６の外周面に上述したとおりの配管温度検出装置２を装着した状態を図示している。配管２６に温度検出装置２を装着する際には、配管２６の外周面に装着クリップ部材６の被嵌部１６を、更に詳しく被嵌部１６の第一の部分１６ａの先端縁と第二の部分１６ｂの先端縁との間の間隙を配管２６の外周面に対抗して位置せしめ、被嵌部１６を配管２６に向けて強制して被嵌部１６を配管２６の外周面に被嵌する。この際には、案内部１８ａ及び１８ｂによって配管２６に対して被嵌部１６が案内される。被嵌部１６が配管２６の外周面に被嵌される際には、第一の部分１６ａの周方向延在長さが第二の部分１６ｂの周方向延在長さよりも長いことに起因して、そしてまた第一の部分１６ａは収納部１４から離隔する方向に見て下流側部において収納部１４から離隔する方向に向って幅が漸次低減されていることに起因して、主として第一の部分１６ａ、特に収納部１４から離隔する方向における下流側部、が上流側部に比べてより大きく弾性的に変位乃至変形される。被嵌部１６に形成されている突出片２２は配管２６の外周面に局部的に食い込み、これによって配管２６の外周面に装着クリップ部材６が充分堅固に装着される。 FIG. 6 illustrates a state in which the above-described pipe temperature detection device 2 is attached to the outer peripheral surface of the pipe 26 whose surface temperature is to be detected. When attaching the temperature detection device 2 to the piping 26, the fitted portion 16 of the attachment clip member 6 is attached to the outer peripheral surface of the piping 26, and more specifically, the tip edge of the first portion 16a of the fitted portion 16 and the second The gap between the tip edge of the portion 16b is positioned opposite to the outer circumferential surface of the pipe 26, and the fitted portion 16 is forced toward the pipe 26, so that the fitted portion 16 is fitted onto the outer circumferential surface of the pipe 26. . At this time, the fitted portion 16 is guided with respect to the pipe 26 by the guide portions 18a and 18b. When the fitted portion 16 is fitted onto the outer circumferential surface of the pipe 26, this is due to the fact that the circumferential extension length of the first portion 16a is longer than the circumferential extension length of the second portion 16b. Furthermore, the width of the first portion 16a is gradually reduced in the direction away from the storage portion 14 at the downstream side when viewed in the direction away from the storage portion 14. The portion 16a, particularly the downstream portion in the direction away from the storage portion 14, is more elastically displaced or deformed than the upstream portion. The protruding piece 22 formed on the fitted portion 16 partially bites into the outer circumferential surface of the pipe 26, so that the mounting clip member 6 is sufficiently firmly attached to the outer circumferential surface of the pipe 26.
上述したとおり、配管２６の外周面に装着クリップ部材６を装着する際には、主として被嵌部１６の第一の部分１６ａ、特に収納部１４から離隔する方向における下流側部、が弾性的に変位乃至変形され、これによって装着クリップ部材６の収納部１４の弾性的変位乃至変形が可及的に抑制され、収納部１４の内周面から充填樹脂層２４が剥離されてしまうことが可及的に防止される。本発明者等の経験によれば、被嵌部１６の第一の部分１６ａの周方向延在長さと第二の部分１６ｂの周方向延在長さとを略同一に設定した場合（そしてまた第一の部分１６ａ及び第二の部分１６ｂの幅を特に変化させない場合）には、配管２６の外周面に被嵌部１６を被嵌する際に、被嵌部１６の第一の部分１６ａと第二の部分１６ｂとの双方が略均等に弾性的に変位乃至変形され、これに付随して装着クリップ部材６の収納部１４も弾性的に変位乃至変形され、これに起因して収納部１４の内周面から充填樹脂層２４が剥離されてしまう傾向がある。図示の実施形態においては、更に、収納部１４に形成されている突出片２０が充填樹脂層２４に包囲されている故に、収納部１４の内周面から充填樹脂層２４が離脱されてしまうことが一層確実に防止される。 As described above, when attaching the attachment clip member 6 to the outer circumferential surface of the pipe 26, the first portion 16a of the fitted portion 16, especially the downstream portion in the direction away from the storage portion 14, is elastically As a result, the elastic displacement or deformation of the storage portion 14 of the mounting clip member 6 is suppressed as much as possible, and the filled resin layer 24 may be peeled off from the inner circumferential surface of the storage portion 14. is prevented. According to the experience of the present inventors, when the circumferential extension length of the first portion 16a of the fitted portion 16 and the circumferential extension length of the second portion 16b are set to be approximately the same (and (in the case where the widths of the first part 16a and the second part 16b are not particularly changed), when fitting the fitted part 16 onto the outer peripheral surface of the pipe 26, the first part 16a and the second part 16b of the fitted part 16 are Both the second portion 16b and the second portion 16b are elastically displaced or deformed almost equally, and accordingly, the storage portion 14 of the mounting clip member 6 is also elastically displaced or deformed. There is a tendency for the filled resin layer 24 to peel off from the inner peripheral surface. Furthermore, in the illustrated embodiment, since the protruding piece 20 formed in the storage section 14 is surrounded by the filled resin layer 24, the filled resin layer 24 may be detached from the inner peripheral surface of the storage section 14. is more reliably prevented.
図６を参照することによって明確に理解されるとおり、装着クリップ部材６が配管２６の外周面に装着されると、収納部１４に配設されている充填樹脂層２４の凹状曲面２４ａの曲率半径Ｒ６は配管２６の外周面の曲率半径Ｒ４と実質上同一である故に、充填樹脂層２４の凹状曲面２４ａが配管検出器４のサーミスタ素子６に効果的に熱が伝導され、良好な検温感度が得られる。 As clearly understood by referring to FIG. 6, when the attachment clip member 6 is attached to the outer peripheral surface of the pipe 26, the radius of curvature of the concave curved surface 24a of the filled resin layer 24 disposed in the storage portion 14 Since R6 is substantially the same as the radius of curvature R4 of the outer peripheral surface of the pipe 26, the concave curved surface 24a of the filled resin layer 24 effectively conducts heat to the thermistor element 6 of the pipe detector 4, resulting in good temperature detection sensitivity. can get.
２：温度検出装置
４：温度検出器
６：装着クリップ部材
８：サーミスタ素子
１０ａ：リード線
１０ｂ：リード線
１２：コート
１４：収納部
１６：被嵌部
１６ａ：被嵌部の第一の部分
１６ｂ：被嵌部の第二の部分
１８ａ：案内部
１８ｂ：案内部
２０：突出片
２２：突出片
２４：充填樹脂層
２６：配管
2: Temperature detection device 4: Temperature detector 6: Mounting clip member 8: Thermistor element 10a: Lead wire 10b: Lead wire 12: Coat 14: Storage portion 16: Fitted portion 16a: First portion of fitted portion 16b : Second part of fitted part 18a: Guide part 18b: Guide part 20: Projecting piece 22: Projecting piece 24: Filled resin layer 26: Piping
Claims (10)
該装着クリップ部材の該収納部は、横断面において１８０度を超えて延在する円弧形状であり、該装着クリップ部材の該被嵌部は、横断面において該収納部の周方向片端縁から延在する円弧形状の第一の部分と該収納部の周方向他端縁から延在する円弧形状の第二の部分とを有し、
該装着クリップ部材の該被嵌部の該第一の部分は周方向に１５０度乃至１９０度の角度範囲に渡って延在し、該装着クップ部材の該被嵌部の該第二の部分は４０度乃至６０度の角度範囲に渡って延在しており、該第一の部分の先端縁と該第二の部分の先端縁との間には６０度乃至８０度の角度範囲に渡って間隙が存在し、
該装着クリップ部材の該収納部に収納された該温度検出器の該一部の外周面と該装着クリップ部材の該収納部の内周面との間には充填樹脂層が配設されており、該充填樹脂層によって該装着クリップ部材の該収納部に該温度検出器の該一部が固定されている、
ことを特徴とする配管温度検出装置。 A temperature sensor including a thermistor element and a pair of lead wires connected to the thermistor element, a storage part that houses a part of the temperature sensor, and a cover that is fitted into a cylindrical pipe whose surface temperature is to be detected. A pipe temperature detection device comprising a mounting clip member including a fitting part,
The storage portion of the attachment clip member has an arcuate shape extending over 180 degrees in a cross section, and the fitted portion of the attachment clip member extends from one circumferential edge of the storage portion in the cross section. a circular arc-shaped first portion extending from the other end edge in the circumferential direction of the storage portion;
The first portion of the fitted portion of the mounting clip member extends circumferentially over an angular range of 150 degrees to 190 degrees, and the second portion of the fitted portion of the mounting cup member extends extending over an angular range of 40 degrees to 60 degrees, and extending over an angular range of 60 degrees to 80 degrees between the leading edge of the first portion and the leading edge of the second portion. There is a gap,
A filling resin layer is disposed between the outer peripheral surface of the part of the temperature sensor stored in the storage part of the mounting clip member and the inner peripheral surface of the storage part of the mounting clip member. , the part of the temperature sensor is fixed to the housing part of the attachment clip member by the filled resin layer;
A piping temperature detection device characterized by:
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| JP2020092103A JP7423421B2 (en) | 2020-05-27 | 2020-05-27 | Piping temperature detection device |
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| JP2020092103A JP7423421B2 (en) | 2020-05-27 | 2020-05-27 | Piping temperature detection device |
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| JP2021188780A JP2021188780A (en) | 2021-12-13 |
| JP7423421B2 true JP7423421B2 (en) | 2024-01-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102022109550A1 (en) | 2022-03-16 | 2023-09-21 | Hebotec Gmbh | Elastic clip |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008224553A (en) | 2007-03-14 | 2008-09-25 | Daikin Ind Ltd | Thermistor mounting body |
| JP2013231527A (en) | 2012-04-27 | 2013-11-14 | Daikin Industries Ltd | Heat exchanger |
| CN203310528U (en) | 2013-06-07 | 2013-11-27 | 深圳市敏杰电子科技有限公司 | Pipe clamp type temperature sensor |
| US20150027148A1 (en) | 2013-07-24 | 2015-01-29 | Lg Electronics Inc. | Heat exchanger assembly, refrigerator, and method of controlling a refrigerator |
| JP6262935B2 (en) | 2011-08-24 | 2018-01-17 | 株式会社日本触媒 | Organic electroluminescence device |
-
2020
- 2020-05-27 JP JP2020092103A patent/JP7423421B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008224553A (en) | 2007-03-14 | 2008-09-25 | Daikin Ind Ltd | Thermistor mounting body |
| JP6262935B2 (en) | 2011-08-24 | 2018-01-17 | 株式会社日本触媒 | Organic electroluminescence device |
| JP2013231527A (en) | 2012-04-27 | 2013-11-14 | Daikin Industries Ltd | Heat exchanger |
| CN203310528U (en) | 2013-06-07 | 2013-11-27 | 深圳市敏杰电子科技有限公司 | Pipe clamp type temperature sensor |
| US20150027148A1 (en) | 2013-07-24 | 2015-01-29 | Lg Electronics Inc. | Heat exchanger assembly, refrigerator, and method of controlling a refrigerator |
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| JP2021188780A (en) | 2021-12-13 |
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