JP2003262551A - Temperature sensor - Google Patents

Temperature sensor

Info

Publication number
JP2003262551A
JP2003262551A JP2002062723A JP2002062723A JP2003262551A JP 2003262551 A JP2003262551 A JP 2003262551A JP 2002062723 A JP2002062723 A JP 2002062723A JP 2002062723 A JP2002062723 A JP 2002062723A JP 2003262551 A JP2003262551 A JP 2003262551A
Authority
JP
Japan
Prior art keywords
temperature sensor
cover
temperature
case
sensor body
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
Application number
JP2002062723A
Other languages
Japanese (ja)
Inventor
Yutaka Hasegawa
豊 長谷川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawamura Electric Inc
Original Assignee
Kawamura Electric Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawamura Electric Inc filed Critical Kawamura Electric Inc
Priority to JP2002062723A priority Critical patent/JP2003262551A/en
Publication of JP2003262551A publication Critical patent/JP2003262551A/en
Pending legal-status Critical Current

Links

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature sensor which has resistance against impact, of which a temperature sensing part of a temperature sensor body is directly exposed outside for improved measurement precision. <P>SOLUTION: Related to a temperature sensor 1, a base 2 and a cover 3 form a box-like case. A temperature sensing part 5a of a temperature sensor body 5 is inserted, for engagement, in a recessed part 3c formed on the upper surface of the cover 3. A lead 5b extending downward from the temperature sensing part 5a of the temperature sensor body 5 penetrates a through hole 3d which penetrates from the bottom surface of the recessed part 3c to the inside of cover. The lead 5b is connected and fixed to a printed board 7 secured inside the cover 3 which is engaged with the base 2. A terminal stage 6 is fitted to the printed board 7, and a terminal part 6a of the terminal stage 6 is exposed from the cover 3, for wiring and outputting data to outside. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、周囲温度を測定す
るための温度センサの構造に関する。 【0002】 【従来の技術】従来の一般的な温度センサとして2つの
温度センサを説明する。図5及び図6に示すように第1
の温度センサ11は、円筒形のケース14に一端面と温
度センサ本体15の感温部15aが略面一となるように
温度センサ本体15を収納すると共に、温度センサ本体
15のリード15bに接続された電子部品16を収納
し、ケース14の他端面から温度センサ本体15のリー
ド15bに接続されたコード17が出線され、コード1
7の先端には外部機器に接続するためのコネクタ18が
取り付けられている。ケース14の内部は温度センサ本
体15の感温部15aが埋没しないように充填剤19で
満たされ固定されている。 【0003】また、図7〜図9に示すように第2の温度
センサ21は、基台22とカバー23とで箱状に形成さ
れたケース24に温度センサ本体25と外部に配線する
ための端子台26が収納されている。温度センサ本体2
5と端子台26はプリント基板27上に接続して取り付
けられ、プリント基板27を基台22上に載置した後、
上部から基台22をカバー23で覆い、嵌合させて取り
付けられている。また、カバー23にはケース24内に
外気が取り込めるよう少なくとも一箇所に通気孔23a
が形成されると共に、端子台26の端子部26aが露出
するための開口23bが形成されている。 【0004】 【発明が解決しようとする課題】このように従来の第1
の温度センサは充填剤で温度センサ本体を固定するが、
その際に温度センサ本体の感温部が露出するように一定
に充填するのが難しく、充填具合によっては測定精度に
問題が生じるという欠点があった。更に温度センサ本体
が故障した場合、温度センサ本体のみの交換が難しいと
いう欠点があった。また、第2の温度センサは温度セン
サ本体の感温部がケースから露出していないために熱伝
導性が悪く、外気温度の変動に対してケース内温度の変
動が遅いため、外気温度と測定温度にギャップが生じる
という欠点があった。 【0005】そこで上記問題点に鑑み、本発明の目的
は、容易に組み立てることができ、温度センサ本体の感
温部が直接外部に露出して測定精度を向上し、外部から
の衝撃にも強い温度センサを提供することである。 【0006】 【課題を解決するための手段】上記目的を達成するため
に、周囲温度を測定するための温度センサにおいて、プ
リント基板を収納するケースの一面に凹部を形成し、凹
部に温度センサ本体の感温部を嵌挿し、感温部から延び
るリードを凹部の底面部からケース内に貫通形成した貫
通孔に貫通させてケースの内部に収納されたプリント基
板に接続したことを特徴とする。 【0007】 【発明の実施の形態】温度センサは基台とカバーとでケ
ースを箱状に形成し、カバーの上面に形成した凹部に温
度センサ本体の感温部を嵌挿させ、温度センサ本体の感
温部から下方向に延びるリードを凹部の底面部からカバ
ー内側に貫通形成した貫通孔に貫通させ、カバーの内側
に固定したプリント基板にリードを接続して固定し、カ
バーと基台を嵌合させる。 【0008】 【実施例】本発明に係る温度センサの一実施例を図1〜
図4の添付図面に基づいて説明する。 【0009】温度センサ1は基台2とカバー3とで箱状
に形成されたケース4と、温度を検知するための温度セ
ンサ本体5と、外部にデータを出力するために配線が接
続される端子台6と、温度センサ本体5及び端子台6が
接続し取り付けられるプリント基板7とで成っている。 【0010】基台2は矩形状の底板2aの四辺が立ち上
げられて側壁2bが形成され、一つの側壁2bから外側
方向に底板2aと同一平面上に張設された舌片2cが形
成された形状であり、舌片2cの略中央には取付ネジ8
が挿通するための取付孔2dが形成されている。また、
側壁2bの内側面にプリント基板7を位置決めして支持
する複数の基板支持リブ2eが形成され、舌片2cが形
成された側壁2bと隣接した対向する二側壁2bの外側
面の下端に係合凹部2fが形成されている。 【0011】カバー3は矩形状の天板3aの四辺が折り
下げられて側壁3bが形成された形状であり、基台2に
上部から嵌合する寸法に形成されている。天板3aには
温度センサ本体5の感温部5aが収納される凹部3cが
形成され、凹部3cの底面部からカバー3内側に温度セ
ンサ本体5のリード5bが挿通可能な貫通孔3dが貫通
形成され、リード5bをプリント基板7との接続位置ま
で案内するように形成されている。側壁3bの内側面は
プリント基板7を位置決めして支持する複数の基板支持
リブ3eが形成され、基台2の係合凹部2fと対向する
位置に係合凸部3fが形成されている。また、側壁3b
には端子台6の端子部6aが露出するための開口3gが
形成されている。 【0012】プリント基板7は端縁にカバー3の一部の
基板支持リブ3eに嵌合する切欠7aが形成され、上面
に端子台6が接続し取り付けられている。 【0013】これらを組み立てるには、まず、プリント
基板7の切欠7aがカバー3の基板支持リブ3eに嵌合
するように下側から嵌め込む。そして、カバー3の上側
から凹部3cの貫通孔3dに温度センサ本体5のリード
5bを貫通させ、更にリード5bをプリント基板7に貫
通させ、感温部5aを凹部3cに収納する。それからプ
リント基板7にリード5bを半田付けして接続し取り付
ける。最後に基台2にカバー3を嵌合させ、基台2の係
合凹部2fにカバー3の係合凸部3fを係合させて取り
付ける。組み立てられた温度センサ1は基台2の舌片2
cの取付孔2dに取付ネジ8を挿通させて螺着固定さ
れ、端子部6aに配線が接続されて使用される。 【0014】 【発明の効果】以上説明したように周囲温度を測定する
ための温度センサにおいて、プリント基板を収納するケ
ースの一面に凹部を形成し、凹部に温度センサ本体の感
温部を嵌挿し、感温部から延びるリードを凹部の底面部
からケース内に貫通形成した貫通孔に貫通させてケース
の内部に収納されたプリント基板に接続したことによ
り、温度センサ本体の感温部が直接外部に露出して測定
精度を向上し、外部からの衝撃にも強いという優れた効
果がある。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a temperature sensor for measuring an ambient temperature. 2. Description of the Related Art Two conventional temperature sensors will be described. As shown in FIG. 5 and FIG.
The temperature sensor 11 accommodates the temperature sensor body 15 in a cylindrical case 14 such that one end face and the temperature sensing portion 15a of the temperature sensor body 15 are substantially flush with each other, and is connected to a lead 15b of the temperature sensor body 15. The cord 17 connected to the lead 15b of the temperature sensor body 15 is output from the other end surface of the case 14, and the cord 1
A connector 18 for connecting to an external device is attached to the front end of 7. The inside of the case 14 is filled with a filler 19 and fixed so that the temperature sensing portion 15a of the temperature sensor body 15 is not buried. As shown in FIGS. 7 to 9, a second temperature sensor 21 is provided with a base 24 and a cover 23 for connecting a temperature sensor main body 25 and an outside to a case 24 formed in a box shape. The terminal block 26 is housed. Temperature sensor body 2
5 and the terminal block 26 are connected and mounted on a printed circuit board 27. After the printed circuit board 27 is mounted on the base 22,
The base 22 is covered with a cover 23 from above and is fitted and attached. The cover 23 has at least one vent hole 23a so that outside air can be taken into the case 24.
Are formed, and an opening 23b for exposing the terminal portion 26a of the terminal block 26 is formed. SUMMARY OF THE INVENTION [0004] As described above, the first conventional technique is described.
Temperature sensor fix the temperature sensor body with filler,
At that time, it is difficult to fill the temperature sensor body so that the temperature-sensitive part of the temperature sensor body is exposed, and there is a problem that a problem occurs in measurement accuracy depending on a filling condition. Further, when the temperature sensor body breaks down, there is a disadvantage that it is difficult to replace only the temperature sensor body. In addition, the second temperature sensor has poor thermal conductivity because the temperature sensing portion of the temperature sensor body is not exposed from the case, and the temperature inside the case fluctuates slowly with respect to the outside air temperature. There is a disadvantage that a gap occurs in the temperature. In view of the above problems, an object of the present invention is to assemble easily, to expose the temperature-sensitive portion of the temperature sensor body directly to the outside, to improve the measurement accuracy, and to withstand external shocks. It is to provide a temperature sensor. In order to achieve the above object, in a temperature sensor for measuring an ambient temperature, a concave portion is formed on one surface of a case for accommodating a printed circuit board, and a temperature sensor main body is formed in the concave portion. And a lead extending from the temperature sensing portion is passed through a through hole formed in the case from the bottom surface of the concave portion and connected to a printed circuit board housed in the case. DETAILED DESCRIPTION OF THE INVENTION A temperature sensor has a case formed of a base and a cover in a box shape, and a temperature sensing portion of the temperature sensor body is inserted into a concave portion formed on an upper surface of the cover. The lead extending downward from the temperature sensing part is passed through the through hole formed through the inside of the cover from the bottom of the recess, and the lead is connected and fixed to the printed circuit board fixed inside the cover, and the cover and the base are connected. Fit. An embodiment of the temperature sensor according to the present invention is shown in FIGS.
Description will be made with reference to the attached drawing of FIG. The temperature sensor 1 has a case 4 formed in a box shape by a base 2 and a cover 3, a temperature sensor main body 5 for detecting a temperature, and wiring for outputting data to the outside. It comprises a terminal block 6 and a printed circuit board 7 to which the temperature sensor body 5 and the terminal block 6 are connected and mounted. The base 2 has a rectangular bottom plate 2a with four sides raised to form a side wall 2b, and a tongue piece 2c extending from one side wall 2b outward and coplanar with the bottom plate 2a. The mounting screw 8 is provided substantially at the center of the tongue piece 2c.
2d is formed. Also,
A plurality of substrate support ribs 2e for positioning and supporting the printed circuit board 7 are formed on the inner surface of the side wall 2b, and engage with the lower end of the outer side surface of the opposed two side walls 2b adjacent to the side wall 2b on which the tongue piece 2c is formed. A recess 2f is formed. The cover 3 has a shape in which four sides of a rectangular top plate 3a are folded down to form a side wall 3b, and is dimensioned to fit into the base 2 from above. The top plate 3a is formed with a concave portion 3c for accommodating the temperature sensing portion 5a of the temperature sensor main body 5, and a through hole 3d through which the lead 5b of the temperature sensor main body 5 can be inserted from the bottom of the concave portion 3c to the inside of the cover 3. The lead 5b is formed to guide the lead 5b to a connection position with the printed circuit board 7. A plurality of substrate support ribs 3e for positioning and supporting the printed circuit board 7 are formed on the inner side surface of the side wall 3b, and an engagement protrusion 3f is formed at a position facing the engagement recess 2f of the base 2. Also, the side wall 3b
Is formed with an opening 3g for exposing the terminal portion 6a of the terminal block 6. The printed circuit board 7 has a notch 7a formed at the edge thereof so as to fit into a part of the substrate supporting rib 3e of the cover 3, and a terminal block 6 is connected and mounted on the upper surface. In order to assemble these, first, the notch 7a of the printed board 7 is fitted from below so that the notch 7a is fitted to the board supporting rib 3e of the cover 3. Then, the lead 5b of the temperature sensor main body 5 penetrates through the through hole 3d of the concave portion 3c from above the cover 3, and further the lead 5b penetrates the printed circuit board 7, and the temperature sensing portion 5a is housed in the concave portion 3c. Then, the leads 5b are connected to the printed circuit board 7 by soldering. Finally, the cover 3 is fitted to the base 2, and the engaging protrusion 2 f of the cover 3 is engaged with the engaging recess 2 f of the base 2 and attached. The assembled temperature sensor 1 is a tongue 2 of a base 2.
The mounting screw 8 is inserted through the mounting hole 2d of FIG. 3c and screwed and fixed, and the wiring is connected to the terminal 6a for use. As described above, in the temperature sensor for measuring the ambient temperature, a concave portion is formed on one surface of a case for accommodating a printed circuit board, and the temperature sensing portion of the temperature sensor body is inserted into the concave portion. By connecting the lead extending from the temperature sensing part to the printed circuit board housed inside the case by passing the lead from the bottom of the recess through the through hole formed in the case, the temperature sensing part of the temperature sensor body is directly It has an excellent effect of improving measurement accuracy by being exposed to light and being resistant to external impact.

【図面の簡単な説明】 【図1】本発明に係る温度センサの分解斜視図である。 【図2】ケースのカバーの裏側を示す斜視図である。 【図3】温度センサを示す外観斜視図である。 【図4】図3のA−A線矢視断面図である。 【図5】従来の第1の温度センサを示す説明図である。 【図6】従来の第1の温度センサを示す外観斜視図であ
る。 【図7】従来の第2の温度センサを示す分解斜視図であ
る。 【図8】従来の第2の温度センサを示す外観斜視図であ
る。 【図9】従来の第2の温度センサのB−B線矢視断面図
である。 【符号の説明】 1 温度センサ 2 基台 3 カバー 3c 凹部 3d 貫通孔 4 ケース 5 温度センサ本体 5a 感温部 5b リード 6 端子台 7 プリント基板
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a temperature sensor according to the present invention. FIG. 2 is a perspective view showing the back side of a cover of a case. FIG. 3 is an external perspective view showing a temperature sensor. FIG. 4 is a sectional view taken along line AA of FIG. 3; FIG. 5 is an explanatory diagram showing a conventional first temperature sensor. FIG. 6 is an external perspective view showing a conventional first temperature sensor. FIG. 7 is an exploded perspective view showing a second conventional temperature sensor. FIG. 8 is an external perspective view showing a second conventional temperature sensor. FIG. 9 is a cross-sectional view of the second conventional temperature sensor taken along line BB. [Description of Signs] 1 Temperature sensor 2 Base 3 Cover 3c Recess 3d Through hole 4 Case 5 Temperature sensor body 5a Temperature sensing part 5b Lead 6 Terminal block 7 Printed circuit board

Claims (1)

【特許請求の範囲】 【請求項1】 周囲温度を測定するための温度センサに
おいて、プリント基板を収納するケースの一面に凹部を
形成し、該凹部に温度センサ本体の感温部を嵌挿し、該
感温部から延びるリードを前記凹部の底面部から前記ケ
ース内に貫通形成した貫通孔に貫通させて前記ケースの
内部に収納された前記プリント基板に接続したことを特
徴とする温度センサ。
1. A temperature sensor for measuring an ambient temperature, wherein a concave portion is formed on one surface of a case for housing a printed circuit board, and a temperature-sensitive portion of a temperature sensor main body is inserted into the concave portion. A temperature sensor, wherein a lead extending from the temperature-sensitive portion penetrates through a through-hole formed in the case from a bottom portion of the concave portion and is connected to the printed circuit board housed in the case.
JP2002062723A 2002-03-07 2002-03-07 Temperature sensor Pending JP2003262551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002062723A JP2003262551A (en) 2002-03-07 2002-03-07 Temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002062723A JP2003262551A (en) 2002-03-07 2002-03-07 Temperature sensor

Publications (1)

Publication Number Publication Date
JP2003262551A true JP2003262551A (en) 2003-09-19

Family

ID=29196344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002062723A Pending JP2003262551A (en) 2002-03-07 2002-03-07 Temperature sensor

Country Status (1)

Country Link
JP (1) JP2003262551A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT505135B1 (en) * 2007-05-07 2009-05-15 Vaillant Austria Gmbh EXTERNAL TEMPERATURE PROBE FOR HEATING SYSTEMS
US8303179B2 (en) * 2006-06-03 2012-11-06 Precision Linear Systems, Inc. Temperature-sensing and transmitting assemblies, programmable temperature sensor units, and methods of making and using them
JPWO2013093959A1 (en) * 2011-12-20 2015-04-27 三菱電機株式会社 Remote control device for air conditioning
KR200478963Y1 (en) 2014-05-12 2015-12-11 센서나인(주) Temperature sensor
CN108981962A (en) * 2018-08-30 2018-12-11 上海炜绫测试技术有限公司 A kind of PCB aperture chain temperature testing method and device
JP7098848B1 (en) * 2022-01-18 2022-07-11 株式会社芝浦電子 Manufacturing method of temperature sensor and temperature sensor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8303179B2 (en) * 2006-06-03 2012-11-06 Precision Linear Systems, Inc. Temperature-sensing and transmitting assemblies, programmable temperature sensor units, and methods of making and using them
AT505135B1 (en) * 2007-05-07 2009-05-15 Vaillant Austria Gmbh EXTERNAL TEMPERATURE PROBE FOR HEATING SYSTEMS
JPWO2013093959A1 (en) * 2011-12-20 2015-04-27 三菱電機株式会社 Remote control device for air conditioning
KR200478963Y1 (en) 2014-05-12 2015-12-11 센서나인(주) Temperature sensor
CN108981962A (en) * 2018-08-30 2018-12-11 上海炜绫测试技术有限公司 A kind of PCB aperture chain temperature testing method and device
JP7098848B1 (en) * 2022-01-18 2022-07-11 株式会社芝浦電子 Manufacturing method of temperature sensor and temperature sensor

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