JP2019132649A - Temperature detector - Google Patents
Temperature detector Download PDFInfo
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- JP2019132649A JP2019132649A JP2018013639A JP2018013639A JP2019132649A JP 2019132649 A JP2019132649 A JP 2019132649A JP 2018013639 A JP2018013639 A JP 2018013639A JP 2018013639 A JP2018013639 A JP 2018013639A JP 2019132649 A JP2019132649 A JP 2019132649A
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- 239000000758 substrate Substances 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 12
- 239000000057 synthetic resin Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 17
- 238000004382 potting Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
本発明は、受熱基板の表面に導電パターンを介して測温素子が固着されていると共に一対のリード線の非被覆端部が固着され、そして測温素子及び一対のリード線の少なくとも非被覆端部が樹脂によってポッティングされている温度検出器に関する。 In the present invention, the temperature measuring element is fixed to the surface of the heat receiving substrate through the conductive pattern, the uncovered end portions of the pair of lead wires are fixed, and at least the uncovered ends of the temperature measuring element and the pair of lead wires The present invention relates to a temperature detector whose part is potted with resin.
所定部位の温度、例えば多数の蓄電素子を含有した蓄電器の上面の温度、を検出するための温度検出器として、下記特許文献１には、受熱基板と、この受熱基板の表面に配設され且つ測温素子固着域、一対のリード線固着域及び一対のリード線固着域の各々を測温素子固着域に接続する一対の接続域を有する導電パターンと、導電パターンの測温素子固着域に固着された測温素子と、一対のリード線固着域に、夫々、非被覆端部が固着された一対のリード線と、測温素子並びに一対のリード線の非被覆端部及び被覆部の一部を覆うポッティング樹脂と、そして更に合成樹脂製ケースとを含む温度検出器が提案されている。ケースは下面に開口を有する箱状主部とこの主部に付設された一対の付勢部とを有し、箱状主部が受熱基板と共に導電パターン、測温素子並びに一対のリード線の非被覆端部及び被覆部の一部を覆う。主部と一体に形成され他一対の付勢部の各々は、複数個の折り曲げ部を有する略波形状であり、自由端は押圧力印加端を構成する。使用に際しては、ケースの下面から露呈している受熱基板の下面が温度を測定すべき部位に当接され、一対の付勢部の押圧力印加端に加えられる押圧力によって温度を測定すべき部位に弾性的に押圧される（換言すればケースに付設された一対の付勢部が弾性偏倚手段として機能する）。 As a temperature detector for detecting the temperature of a predetermined part, for example, the temperature of the upper surface of a battery containing a large number of power storage elements, Patent Document 1 below discloses a heat receiving substrate and a surface of the heat receiving substrate, and A temperature measuring element fixing area, a pair of lead wire fixing areas, a pair of lead wire fixing areas, a conductive pattern having a pair of connection areas connecting the temperature measuring element fixing area, and a conductive pattern fixed to the temperature measuring element fixing area A pair of lead wires each having an uncoated end portion fixed to the temperature measuring element and a pair of lead wire fixing regions, and a part of the temperature measuring element and the uncovered end portions and the covering portion of the pair of lead wires, respectively. There has been proposed a temperature detector including a potting resin that covers and a synthetic resin case. The case has a box-shaped main portion having an opening on the lower surface and a pair of urging portions attached to the main portion. The box-shaped main portion together with the heat receiving substrate is connected to the conductive pattern, the temperature measuring element, and the pair of lead wires. Cover the covering end and part of the covering. Each of the other pair of urging portions formed integrally with the main portion has a substantially wave shape having a plurality of bent portions, and the free end constitutes a pressing force application end. In use, the lower surface of the heat receiving substrate exposed from the lower surface of the case is brought into contact with the portion whose temperature is to be measured, and the portion whose temperature is to be measured by the pressing force applied to the pressing force application ends of the pair of urging portions. (In other words, a pair of urging portions attached to the case function as elastic biasing means).
而して、本発明者等の経験によれば、上述したとおりの温度検出器には、ケースの主部と一体に合成樹脂から形成された一対の付勢部を弾性偏倚手段として利用していることに起因して、比較的短期間のうちに一対の付勢部が損傷されてしまう虞が少なくない、という解決すべき問題がある。 Thus, according to the experience of the present inventors, the temperature detector as described above uses a pair of urging portions formed of a synthetic resin integrally with the main portion of the case as an elastic biasing means. There is a problem to be solved that the pair of urging portions is likely to be damaged within a relatively short period of time.
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、製造コストを徒に増大せしめることなく、従来の温度測定器に存在する上記のとおりの問題を解決された、従って比較的短期間のうちに損傷されてしまう虞がなく長期間に渡って使用することができる、新規且つ改良された温度検出器を提供することである。 The present invention has been made in view of the above-mentioned facts, and the main technical problem thereof has been to solve the problems as described above existing in the conventional temperature measuring device without increasing the manufacturing cost. It is an object of the present invention to provide a new and improved temperature detector that can be used for a long period of time without fear of being damaged in a relatively short period of time.
本発明者等は、鋭意検討及び実験の結果、合成樹脂製ケースの両側壁に側方に延出する延出壁を一体に形成すると共に、ケースとは別個に作成した金属製ばね片を延出壁の各々に装着することによって、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 studies and experiments, the inventors of the present invention integrally formed extending walls extending sideways on both side walls of the synthetic resin case, and extended metal spring pieces created separately from the case. It has been found that the main technical problem can be achieved by attaching each of the exit walls.
即ち、本発明によれば、上記主たる技術的課題を達成する温度測定器として、
受熱基板と、該受熱基板の表面に配設され且つ測温素子固着域、一対のリード線固着域及び該一対のリード線固着域の各々を該測温素子固着域に接続する一対の接続域を有する導電パターンと、該導電パターンの該測温素子固着域に固着された測温素子と、該一対のリード線固着域に、夫々、非被覆端部が固着された一対のリード線と、該測温素子と共に該一対のリード線の少なくとも非被覆端部を覆うポッティング樹脂とを含む温度検出器にして、
前壁及び両側壁を有し、底面には該受熱基板が装着される開口が規定され、該両側壁の各々には側方に延出する延出壁が一体に付設されている合成樹脂製ケースを具備し、
該受熱基板はその裏面を該開口から露呈せしめて且つ該測温素子固着域を該前壁側に位置せしめて該ケースに装着され、
該延出壁の各々には押圧力印加端を有する金属製ばね片が装着されている、
ことを特徴とする温度検出器が提供される。
That is, according to the present invention, as a temperature measuring device that achieves the main technical problem,
A heat receiving board and a pair of connection areas disposed on the surface of the heat receiving board and connecting each of the temperature measuring element fixing area, the pair of lead wire fixing areas, and the pair of lead wire fixing areas to the temperature measuring element fixing area A conductive pattern, a temperature measuring element fixed to the temperature measuring element fixing region of the conductive pattern, and a pair of lead wires each having an uncoated end fixed to the pair of lead wire fixing regions, A temperature detector including the temperature measuring element and a potting resin covering at least an uncoated end portion of the pair of lead wires,
It is made of a synthetic resin having a front wall and both side walls, an opening for mounting the heat receiving substrate is defined on the bottom surface, and an extension wall extending sideways is integrally attached to each of the both side walls. With a case,
The heat receiving substrate is attached to the case with its back surface exposed from the opening and the temperature measuring element fixing region positioned on the front wall side,
A metal spring piece having a pressing force application end is attached to each of the extension walls.
A temperature detector is provided.
好ましくは、該ケースは後壁を有し、該前壁、該両側壁及び該後壁は矩形筒形状の主部を規定する。該ばね片は平坦に延在する装着部と該装着部の前端から上方及び後方に向かって弧状に該押圧力印加端まで弧状に延びる機能部とを有し、該装着部が該延出壁の上面に装着されるのが好適である。該ケースの該両側壁の各々には該延出壁の前端部の上方に位置する係止片が一体に付設されていると共に、該延出壁の各々の上面後端部には係止突条が一体に形成されており、該ばね片の該装着部には該係止突条に対応した被係止穴が形成されており、該ばね片は、該係止突条に該被係止穴を被嵌し、該装着部を該延出壁の上面後端部から前方に向って且つ該延出壁と該係止片との間を通って延在せしめることによって、該延出壁に装着されているのが望ましい。該係止突条は切り立った後面と前方に向って下方に傾斜する傾斜前面とを有するのが好都合である。 Preferably, the case has a rear wall, and the front wall, the side walls, and the rear wall define a rectangular cylindrical main portion. The spring piece has a mounting portion that extends flatly and a functional portion that extends in an arc from the front end of the mounting portion upward and rearward to the pressing force application end, and the mounting portion is the extension wall. It is preferable to be mounted on the upper surface of the. Each of the side walls of the case is integrally provided with a locking piece located above the front end of the extending wall, and a locking protrusion is provided at the rear end of the upper surface of each extending wall. A strip is integrally formed, and a locking hole corresponding to the locking projection is formed in the mounting portion of the spring piece, and the spring piece is engaged with the locking projection. By fitting a blind hole and extending the mounting portion forward from the rear end of the upper surface of the extension wall and between the extension wall and the locking piece, the extension It is desirable to be mounted on the wall. Conveniently, the locking ridge has an upstanding rear surface and an inclined front surface that slopes downwardly toward the front.
本発明の温度検出器においては、弾性偏倚手段として機能するばね片を合成樹脂製ケースとは別個に金属から形成しており、従って比較的短期間のうちの損傷されてしまう虞がない。一方、ケースには両側壁から側方に延出する延出壁を一体に形成し、かかる延出壁の各々にばね片を装着している故に、製造コストが徒に増大することが回避される。 In the temperature detector of the present invention, the spring piece functioning as the elastic biasing means is made of metal separately from the synthetic resin case, and therefore there is no risk of being damaged within a relatively short period of time. On the other hand, since the case is integrally formed with an extension wall extending laterally from both side walls, and a spring piece is attached to each of the extension walls, an increase in manufacturing cost is avoided. The
以下、本発明に従って構成された温度検出器の好適実施形態を図示している添付図面を参照して更に詳細に説明する。 Hereinafter, preferred embodiments of a temperature detector constructed according to the present invention will be described in more detail with reference to the accompanying drawings.
図１と共に図２を参照して説明すると、全体を番号２で示す温度検出器は矩形板形状である受熱基板４を含んでいる。この受熱基板４は、本体６とこの本体６の表面に施された絶縁層８とから構成されている。本体６は、例えばアルミニウム、銅又はマグネシウムの如き高熱伝導率を有する適宜の金属、これらの酸化物又は窒化物或いはこれらを混練し焼き固めたセラミックから形成することができる。絶縁層８は、例えばエポキシ、ポリアミド又はポリイミドの如き樹脂或いはこれらに適宜の充填剤を添加した樹脂から形成することができる。受熱基板４の表面に施された絶縁層８上には、銅箔から形成されているのが好都合である導電パターン１０が配設されている。この導電パターン１０は測温素子固着域１０ａ、一対のリード線固着域１０ｂ及び一対のリード線固着域１０ｂの各々を測温素子固着領域１０ａに接続する一対の接続域１０ｃを有する。 Referring to FIG. 2 together with FIG. 1, the temperature detector denoted as a whole by the number 2 includes a heat receiving substrate 4 having a rectangular plate shape. The heat receiving substrate 4 includes a main body 6 and an insulating layer 8 provided on the surface of the main body 6. The main body 6 can be formed of an appropriate metal having a high thermal conductivity such as aluminum, copper, or magnesium, an oxide or nitride thereof, or a ceramic obtained by kneading and baking these. The insulating layer 8 can be formed of a resin such as epoxy, polyamide, or polyimide, or a resin obtained by adding an appropriate filler to these. On the insulating layer 8 provided on the surface of the heat receiving substrate 4, a conductive pattern 10 that is conveniently formed of a copper foil is disposed. The conductive pattern 10 has a temperature measuring element fixing area 10a, a pair of lead wire fixing areas 10b, and a pair of lead wire fixing areas 10b that connect each of the pair of lead wire fixing areas 10b to the temperature measuring element fixing area 10a.
導電パターン１０の測温素子固着域１０ａ上には、サーミスタから構成することができる測温素子１２がはんだ付けによって固着されている。また、導電パターン１０の一対のリード線固着域１０ｂの各々には、夫々、一対のリード線１４の非被覆端部１４ａの各々がはんだ付けによって固着されている。後に更に詳述するとおり、一対のリード線１４の、導電パターン１０のリード線固着域１０ｂに固着された非被覆端部１４ａ以外の部分を受熱基板４から立ち上がる状態にして、ポッティング樹脂が形成され、従って一対のリード線１４の、非被覆端部１４ａ以外の部分は受熱基板４から立ち上がった状態に維持され、それ故に図２においても一対のリード線１４の、非被覆端部１４ａ以外の部分は受熱基板４から立ち上がった状態で図示されている。 On the temperature measuring element fixing region 10a of the conductive pattern 10, a temperature measuring element 12 which can be constituted by a thermistor is fixed by soldering. In addition, each of the uncovered end portions 14a of the pair of lead wires 14 is fixed to each of the pair of lead wire fixing regions 10b of the conductive pattern 10 by soldering. As will be described in detail later, the potting resin is formed with the pair of lead wires 14 rising from the heat receiving substrate 4 except for the uncovered end portion 14a fixed to the lead wire fixing region 10b of the conductive pattern 10. Accordingly, the portions of the pair of lead wires 14 other than the uncovered end portion 14a are maintained in a state of rising from the heat receiving substrate 4, and therefore the portions of the pair of lead wires 14 other than the uncovered end portion 14a in FIG. Is shown standing from the heat receiving substrate 4.
温度検出器２は、更に、合成樹脂製ケース１６を含んでいる。図１と共に図３乃至図５を参照して説明を続けると、例えばＰＢＴ、ＰＥＴ又はＰＯＭの如き適宜の合成樹脂から一体に射出成形することができる図示のケース１６は、前壁１８ａ、両側壁１８ｂ及び１８ｃ並びに後壁１８ｄから構成された全体として矩形筒形状の主部１８を有する。所望ならば、後壁１８ｄを省略することもできる。主部１８の下面には、上記受熱基板４が装着される開口２０が規定されている。図５を参照することによって明確に理解される如く、前壁１８ａ、両側壁１８ｂ及び１８ｃ並びに後壁１８ｄの内面下端部には周方向に連続して延在する凹部が形成されており、かかる凹部によって開口２０が規定されている。開口２０の外径寸法は上記受熱基板４の外径寸法に対応、更に詳しくは上記受熱基板４の外径寸法よりも若干小さい。 The temperature detector 2 further includes a synthetic resin case 16. 3 and 5 together with FIG. 1, the illustrated case 16 that can be integrally injection-molded from an appropriate synthetic resin such as PBT, PET, or POM, includes a front wall 18a, both side walls. The main part 18 of the rectangular cylinder shape as a whole comprised from 18b and 18c and the rear wall 18d is provided. If desired, the rear wall 18d can be omitted. An opening 20 in which the heat receiving substrate 4 is mounted is defined on the lower surface of the main portion 18. As clearly understood by referring to FIG. 5, a concave portion extending continuously in the circumferential direction is formed at the lower end of the inner surface of the front wall 18a, the side walls 18b and 18c, and the rear wall 18d. An opening 20 is defined by the recess. The outer diameter of the opening 20 corresponds to the outer diameter of the heat receiving substrate 4, and more specifically, is slightly smaller than the outer diameter of the heat receiving substrate 4.
ケース１６の両側壁１８ｂ及び１８ｃの各々の外面には、側方に延出する延出壁２２が一体に付設されていることが重要である。ケース１６の両側壁１８ｂ及び１８ｃの各々の外面には、延出壁２２の前端部の上方に位置する係止片２４も一体に形成されている。延出壁２２の上面後端部には平面図において矩形状の係止突条２６が形成されている。かかる係止突条２６の各々は、前方に向って下方に傾斜前面２６ａと切り立った（即ち延出壁２２の上面に対して略垂直に延びる）後面２６ｂとを有する。更に、延出壁２２の上記係止片２４の下方に位置する部位には切欠２８が形成されており、延出壁２２の上面後端には上方に隆起したリブ３０が形成されている。 It is important that the side wall 18b and 18c of the case 16 is integrally provided with an extending wall 22 extending laterally on the outer surface of each side wall 18b and 18c. A locking piece 24 positioned above the front end portion of the extending wall 22 is also integrally formed on the outer surface of each of the side walls 18b and 18c of the case 16. A rectangular locking protrusion 26 is formed on the rear end portion of the upper surface of the extending wall 22 in a plan view. Each of the locking ridges 26 has an inclined front surface 26 a and a rear surface 26 b that stands downward (that is, extends substantially perpendicular to the upper surface of the extending wall 22) toward the front. Further, a notch 28 is formed in a portion of the extending wall 22 located below the locking piece 24, and a rib 30 protruding upward is formed at the rear end of the upper surface of the extending wall 22.
本発明に従って構成された温度検出器２は、更に、一対の金属製ばね片３２を具備していることが重要である。図４を参照して説明を続けると、例えばステンレス鋼板、高炭素鋼板又は合金鋼板であるばね鋼板の如き適宜の金属板から形成することができるばね片３２の各々は、実質上平坦に延在する装着部３２ａと装着部３２ａの前端から上方及び後方に向かって弧状に押圧力印加端３２ｃまで延びる機能部３２ｂとを有する。装着部３２ａの後端部には延出壁２２の上面に形成されている上記係止突条２６に対応した矩形状の被係止穴３２ｄが形成されている。かようなばね片３２の各々は、比較的安価に形成することができることに加えて、充分容易に上記ケース１６の延出壁２２上に装着することができる。更に詳述すると、ばね片３２の各々は、図１を参照することによって明確に理解される如く、装着部３２ａを延出壁２２に対して前方から後方に向けて、延出壁２２の上面と係止片２４の下面との間を通して移動せしめ、被係止穴３２ｄを延出壁２２の上面に形成されている係止突条２６に被嵌せしめることによって、ケース１６の延出壁２２に装着される。この際には、ばね片３２の静止部３２ａは係止突条２６の傾斜前面２６ａに案内され、被係止穴３２ｄは充分容易に係止突条２６に被嵌される。そして、係止突条２６に被係止穴３２ｄが一旦被嵌されると、係止突条２６の切り立った後面２６ｂによって係止突条２６に対してばね片３２の装着部３２ａが前方に移動して延出壁２２から離脱されてしまうことが阻止される。 It is important that the temperature detector 2 constructed according to the present invention further comprises a pair of metal spring pieces 32. With continued reference to FIG. 4, each of the spring pieces 32, which can be formed from a suitable metal plate such as a spring steel plate, for example a stainless steel plate, a high carbon steel plate or an alloy steel plate, extends substantially flat. And a functional part 32b extending in an arc from the front end of the mounting part 32a upward and rearward to the pressing force application end 32c. A rectangular locked hole 32d corresponding to the locking protrusion 26 formed on the upper surface of the extension wall 22 is formed at the rear end of the mounting portion 32a. Each of the spring pieces 32 can be formed on the extending wall 22 of the case 16 with sufficient ease in addition to being able to be formed relatively inexpensively. More specifically, each of the spring pieces 32 has an upper surface of the extension wall 22 with the mounting portion 32a facing the extension wall 22 from the front to the rear as clearly understood by referring to FIG. And the lower surface of the locking piece 24, and the locked hole 32 d is fitted into the locking ridge 26 formed on the upper surface of the extended wall 22, thereby extending the extended wall 22 of the case 16. It is attached to. At this time, the stationary portion 32a of the spring piece 32 is guided by the inclined front surface 26a of the locking ridge 26, and the locked hole 32d is fitted into the locking ridge 26 sufficiently easily. Then, once the locking hole 32d is fitted into the locking ridge 26, the mounting portion 32a of the spring piece 32 is moved forward with respect to the locking ridge 26 by the rear surface 26b of the locking ridge 26 standing up. It is prevented from moving away from the extension wall 22.
上述したとおりの温度検出器２においては、導電パターン１０、測温素子１２並びに一対のリード線１４の非被覆端部１４ａが固着された受熱基板４は、ケース１６の下方から開口２０に圧入することによってケース１６に装着される。開口２０を規定している上記凹部の深さは受熱基板４の厚さ寄りの幾分小さく、従って受熱基板４の裏面をケース１６の下面から下方に突出せしめて下方に露呈せしめられる。次いで、図５に図示する如く、一対のリード線１４の、導電パターン１０の一対のリード線固着域１０ｂに固着された非被覆端部１４ａ以外を受熱基板４から立ち上がる状態に維持して、ケース１６の上方及び後方から下方及び前方に向けてケース１６における主部１８の前壁１８ａ並びに両側壁１８ｂ及び１８ｃ間にポッティング樹脂を充填して硬化せしめ、かくして樹脂ポッティング３４を形成する。充填するポッティング樹脂は、粘度が５Ｐａ・ｓ乃至８０Ｐａ・ｓ程度、特に２８Ｐａ・ｓ乃至５８Ｐａ・ｓ程度であるエポキシ樹脂又はシリコン樹脂或いはこれらに適宜の充填剤を添加した樹脂であるのが好都合である。ポッティング樹脂を充填する際には、一対のリード線１４の、導電パターン１０の一対のリード線固着域１０ｂに固着された非被覆端部１４ａ以外を受熱基板４から立ち上がる状態に維持されている故に、所謂樹脂濡れが良好でないリード線１４の被覆に阻害されることなく導電パターン１０及び測温素子１２と共に一対のリード線１４の非被覆端部１４ａの全体を隙間なく充分良好にポッティングすることができる。加えて、ケース１６における主部１８の前壁１８ａ並びに両側壁１８ｂ及び１８ｃに囲繞された空間にポッティング樹脂を充填する故に、ポッティング樹脂を前方或いは側方に流出せしめることなく充分容易に所要とおりに充填することができる。上述したとおりにしてポッティング樹脂３４を形成すると、図１及び図５を参照することによって明確に理解される如く、ケース１６とその開口２０に圧入された受熱基板４とがポッティング樹脂３４によって接着されることになり、ケース１６から受熱基板４が偶発的に離脱されてしまうことが確実に防止される。 In the temperature detector 2 as described above, the heat receiving substrate 4 to which the conductive pattern 10, the temperature measuring element 12, and the uncovered end portions 14 a of the pair of lead wires 14 are fixed is press-fitted into the opening 20 from below the case 16. This is attached to the case 16. The depth of the recess defining the opening 20 is somewhat smaller near the thickness of the heat receiving substrate 4, so that the back surface of the heat receiving substrate 4 protrudes downward from the lower surface of the case 16 and is exposed downward. Next, as shown in FIG. 5, the case where the pair of lead wires 14 other than the uncovered end portions 14 a fixed to the pair of lead wire fixing regions 10 b of the conductive pattern 10 is maintained in a state of rising from the heat receiving substrate 4. A potting resin is filled between the front wall 18a and both side walls 18b and 18c of the main portion 18 in the case 16 from the upper side and the rear side of the case 16 toward the lower side and the front side to be cured, thus forming the resin potting 34. The potting resin to be filled is preferably an epoxy resin or silicon resin having a viscosity of about 5 Pa · s to 80 Pa · s, particularly about 28 Pa · s to 58 Pa · s, or a resin to which an appropriate filler is added. is there. When the potting resin is filled, the pair of lead wires 14 other than the uncovered end portions 14a fixed to the pair of lead wire fixing regions 10b of the conductive pattern 10 are maintained in a state of rising from the heat receiving substrate 4. That is, the entire uncoated end portions 14a of the pair of lead wires 14 together with the conductive pattern 10 and the temperature measuring element 12 can be potted satisfactorily without gaps without being hindered by the coating of the lead wires 14 with poor so-called resin wetting. it can. In addition, since the potting resin is filled in the space surrounded by the front wall 18a of the main portion 18 and the both side walls 18b and 18c in the case 16, the potting resin can be easily and sufficiently performed without causing the potting resin to flow forward or sideways. Can be filled. When the potting resin 34 is formed as described above, the case 16 and the heat receiving substrate 4 press-fitted into the opening 20 thereof are bonded together by the potting resin 34 as clearly understood by referring to FIGS. 1 and 5. Thus, the heat receiving substrate 4 is reliably prevented from being accidentally detached from the case 16.
図６及び図７は、上述したとおりの温度検出器２の典型的使用様式を図示している。図６及び図７に図示する様式においては、複数個の蓄電素子を含有した蓄電器３６の上面の温度を検出するのに温度検出器２が使用されている。温度検出器２は適宜の合成樹脂から一体に成形することができる装着枠３８に予め装填され、装着枠３８を適宜の固着手段（図示していない）によって蓄電器３６の固定することによって蓄電器３６に対して所要とおりに配置することができる。これに代えて、蓄電器３６の上面上に温度検出器２を所要とおりに配置し、しかる後に装着枠３８を蓄電器３６に所要とおりに固定することによって温度検出器２を所要位置に固定することもできる。図示の装着枠３８は下面、前面及び上面には開口が形成されている収容空間を有し、かかる収容空間に温度検出器２が収容される。蓄電器３６に対して温度検出器２及び装着枠３８が図６及び図７に図示するとおりの状態に組み合わされると、温度検出器２の受熱基板４の下面は蓄電器３６の測温すべき上面に当接せしめられる。そして、装着枠３６の後壁内面に配設されている適宜の押圧片(図示していない)から温度検出器２のばね片３２の各々の押圧片印加端３２ｃに加えられる押圧力に起因して、受熱基板４の下面は蓄電器３６の上面に弾性的に押圧される。装着枠３８に対する温度検出器２の前方への移動は、装着枠３６の両側内面に形成されている制限突起（図示していない）が温度検出器２のケース１６における延出壁２２に形成されている切欠２８に係止することによって阻止される。而して、蓄電器３６及び装着枠３８は、本発明に従って構成された温度検出器２の使用の一例を説明するためのものであり、それ故にこれらについての詳細な説明は本明細書においては省略する。 6 and 7 illustrate typical usage patterns of the temperature detector 2 as described above. 6 and 7, the temperature detector 2 is used to detect the temperature of the upper surface of the battery 36 containing a plurality of power storage elements. The temperature detector 2 is preloaded in a mounting frame 38 that can be integrally molded from a suitable synthetic resin, and the power storage 36 is fixed to the power storage 36 by a suitable fixing means (not shown). On the other hand, it can be arranged as required. Alternatively, the temperature detector 2 may be arranged on the upper surface of the capacitor 36 as required, and then the temperature detector 2 may be fixed at a required position by fixing the mounting frame 38 to the capacitor 36 as required. it can. The mounting frame 38 shown in the figure has accommodation spaces in which openings are formed on the lower surface, the front surface, and the upper surface, and the temperature detector 2 is accommodated in the accommodation space. When the temperature detector 2 and the mounting frame 38 are combined in the state shown in FIGS. 6 and 7 with respect to the capacitor 36, the lower surface of the heat receiving substrate 4 of the temperature detector 2 becomes the upper surface of the capacitor 36 to be measured. It can be brought into contact. And it originates in the pressing force applied to each pressing piece application end 32c of the spring piece 32 of the temperature detector 2 from the appropriate pressing piece (not shown) arrange | positioned in the rear wall inner surface of the mounting frame 36. Thus, the lower surface of the heat receiving substrate 4 is elastically pressed against the upper surface of the battery 36. With respect to the front movement of the temperature detector 2 with respect to the mounting frame 38, limiting protrusions (not shown) formed on both inner surfaces of the mounting frame 36 are formed on the extending wall 22 in the case 16 of the temperature detector 2. This is prevented by locking in the notch 28. Thus, the capacitor 36 and the mounting frame 38 are for explaining an example of the use of the temperature detector 2 configured according to the present invention, and therefore a detailed description thereof will be omitted in this specification. To do.
２：温度検出器
４：受熱基板
１０：導電パターン
１０ａ：測温素子固着域
１０ｂ：リード線固着域
１０ｃ：接続域
１２：測温素子
１４：リード線
１４ａ：非被覆端部
１６：ケース
１８：ケースの主部
１８ａ：前壁
１８ｂ：側壁
１８ｃ：側壁
１８ｄ：後壁
２０：開口
２２：延出壁
２４：係止片
２６：係止突条
２６ａ：傾斜前面
２６ｂ：切り立った後面
３２：ばね片
３２ａ：装着部
３２ｂ：機能部
３２ｃ：押圧力印加端
３２ｄ：被係止穴
３４：ポッティング樹脂
2: Temperature detector 4: Heat receiving substrate 10: Conductive pattern 10a: Temperature measuring element fixing area 10b: Lead wire fixing area 10c: Connection area 12: Temperature measuring element 14: Lead measuring element 14a: Uncoated end 16: Case 18: Main part of the case 18a: Front wall 18b: Side wall 18c: Side wall 18d: Rear wall 20: Opening 22: Extension wall 24: Locking piece 26: Locking protrusion 26a: Inclined front surface 26b: Standing rear surface 32: Spring piece 32a: mounting portion 32b: functional portion 32c: pressing force application end 32d: locked hole 34: potting resin
Claims (5)
前壁及び両側壁を有し、底面には該受熱基板が装着される開口が規定され、該両側壁の各々には側方に延出する延出壁が一体に付設されている合成樹脂製ケースを具備し、
該受熱基板はその裏面を該開口から露呈せしめて且つ該測温素子固着域を該前壁側に位置せしめて該ケースに装着され、
該延出壁の各々には押圧力印加端を有する金属製ばね片が装着されている、
ことを特徴とする温度検出器。 A heat receiving board and a pair of connection areas disposed on the surface of the heat receiving board and connecting each of the temperature measuring element fixing area, the pair of lead wire fixing areas, and the pair of lead wire fixing areas to the temperature measuring element fixing area A conductive pattern, a temperature measuring element fixed to the temperature measuring element fixing region of the conductive pattern, and a pair of lead wires each having an uncoated end fixed to the pair of lead wire fixing regions, A temperature detector including the temperature measuring element and a potting resin covering at least an uncoated end portion of the pair of lead wires,
It is made of a synthetic resin having a front wall and both side walls, an opening for mounting the heat receiving substrate is defined on the bottom surface, and an extension wall extending sideways is integrally attached to each of the both side walls. With a case,
The heat receiving substrate is attached to the case with its back surface exposed from the opening and the temperature measuring element fixing region positioned on the front wall side,
A metal spring piece having a pressing force application end is attached to each of the extension walls.
A temperature detector characterized by that.
該ばね片の該装着部には該係止突条に対応した被係止穴が形成されており、
該ばね片は、該係止突条に該被係止穴を被嵌し、該装着部を該延出壁の上面後端部から前方に向って且つ該延出壁と該係止片との間を通って延在せしめることによって、該延出壁に装着されている、請求項３記載の温度検出器。 Each of the side walls of the case is integrally provided with a locking piece located above the front end of the extending wall, and a locking protrusion is provided at the rear end of the upper surface of each extending wall. The strips are formed in one piece,
A locked hole corresponding to the locking ridge is formed in the mounting portion of the spring piece,
The spring piece fits the locking hole into the locking ridge, and the mounting portion faces forward from the rear end portion of the upper surface of the extension wall and the extension wall and the locking piece. The temperature detector of claim 3, wherein the temperature detector is attached to the extension wall by extending between the two.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160594A (en) * | 1996-11-29 | 1998-06-19 | Ooizumi Seisakusho:Kk | Temperature sensor |
| JP2013251125A (en) * | 2012-05-31 | 2013-12-12 | Honda Motor Co Ltd | Power storage module |
| JP2015069738A (en) * | 2013-09-27 | 2015-04-13 | 株式会社オートネットワーク技術研究所 | Temperature sensor and wiring module |
| JP2017227555A (en) * | 2016-06-23 | 2017-12-28 | 株式会社オートネットワーク技術研究所 | Temperature detection module |
-
2018
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10160594A (en) * | 1996-11-29 | 1998-06-19 | Ooizumi Seisakusho:Kk | Temperature sensor |
| JP2013251125A (en) * | 2012-05-31 | 2013-12-12 | Honda Motor Co Ltd | Power storage module |
| JP2015069738A (en) * | 2013-09-27 | 2015-04-13 | 株式会社オートネットワーク技術研究所 | Temperature sensor and wiring module |
| JP2017227555A (en) * | 2016-06-23 | 2017-12-28 | 株式会社オートネットワーク技術研究所 | Temperature detection module |
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