JP3493802B2 - Temperature sensor - Google Patents
Temperature sensorInfo
- Publication number
- JP3493802B2 JP3493802B2 JP10112895A JP10112895A JP3493802B2 JP 3493802 B2 JP3493802 B2 JP 3493802B2 JP 10112895 A JP10112895 A JP 10112895A JP 10112895 A JP10112895 A JP 10112895A JP 3493802 B2 JP3493802 B2 JP 3493802B2
- Authority
- JP
- Japan
- Prior art keywords
- positioning member
- cylinder
- metal
- protective cylinder
- temperature sensor
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は温度センサに関し、特に
感温素子を金属製の保護筒内に収納した温度センサの構
造改良とその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature sensor, and more particularly to a structural improvement of a temperature sensor having a temperature sensitive element housed in a metal protective cylinder and a method of manufacturing the temperature sensor.
【０００２】[0002]
【従来の技術】車両エンジンの冷却水温等を検出する温
度センサは、サーミスタ等の感温素子を金属製の保護筒
内に収納したものが多く、その一例を図７に示す。図に
おいて、保護筒１は先端が閉鎖されており、この筒内
に、先端閉鎖の筒状をなす緩衝用樹脂ケース８１が装着
してある。感温素子４は樹脂コーティングされて前記樹
脂ケース８１の先端部内に位置し、これに一対のリード
線８２Ａ、８２Ｂが半田付け接続されて樹脂ケース８１
外へ延び、コネクタピンを兼ねるターミナル板８３Ａ、
８３Ｂの下端に半田付け接続されている。2. Description of the Related Art Many temperature sensors for detecting the temperature of cooling water of a vehicle engine have a temperature sensitive element such as a thermistor housed in a metal protective cylinder, an example of which is shown in FIG. In the figure, the protective cylinder 1 is closed at its tip, and a shock-absorbing resin case 81 in the shape of a cylinder whose tip is closed is installed in this cylinder. The temperature-sensitive element 4 is resin-coated and is located in the tip of the resin case 81, and a pair of lead wires 82A and 82B are soldered to the resin case 81.
Terminal plate 83A extending outward and also serving as a connector pin,
It is soldered to the lower end of 83B.
【０００３】前記リード線８２Ａ、８２Ｂは容易に変形
するため、相互の短絡を防止するためにそれぞれ絶縁チ
ューブ８４が装着されている。そして、これらリード線
８２Ａ、８２Ｂと絶縁チューブ８４を封入するように射
出成形された樹脂体５´が、ターミナル板８３Ａ、８３
Ｂの下半部を埋めるとともに、ターミナル板８３Ａ、８
３Ｂ上半部の周囲を囲んでコネクタケース部５１となっ
ている。Since the lead wires 82A and 82B are easily deformed, an insulating tube 84 is attached to each other in order to prevent a short circuit between them. Then, the resin body 5 ′ injection-molded so as to enclose the lead wires 82A and 82B and the insulating tube 84 is the terminal plates 83A and 83.
While filling the lower half of B, terminal plates 83A, 8
A connector case portion 51 surrounds the upper half of 3B.
【０００４】[0004]
【発明が解決しようとする課題】ところで、前記従来の
温度センサでは、リード線８２Ａ、８２Ｂへの絶縁チュ
ーブ８４の装着、リード線８２Ａ、８２Ｂとターミナル
板８３Ａ、８３Ｂの半田付け、あるいはリード線８２
Ａ、８２Ｂのフォーミング等の作業を必要とするため、
製造に手間を要する。また、絶縁チューブ８４、樹脂ケ
ース８１等の部品点数が多いため、部品管理にもコスト
がかかる。By the way, in the above conventional temperature sensor, the insulating tubes 84 are attached to the lead wires 82A and 82B, the lead wires 82A and 82B and the terminal plates 83A and 83B are soldered, or the lead wire 82 is used.
Since the work such as forming of A and 82B is required,
It takes time to manufacture. Further, since the number of parts such as the insulating tube 84 and the resin case 81 is large, the cost for parts management is high.
【０００５】本発明はこのような課題を解決するもの
で、製造の手間を要さず、部品点数の大幅な削減が可能
な温度センサを提供することを目的とする。The present invention solves such a problem, and an object of the present invention is to provide a temperature sensor capable of significantly reducing the number of parts without requiring labor for manufacturing.
【０００６】 本発明は、上記目的を達成するため、請
求項１に記載の発明においては、温度センサは、先端閉
鎖の金属製保護筒（１）と、該保護筒内に挿入され、基
端が給電用ターミナル部（２１）となった複数の板状金
属リード（２Ａ、２Ｂ）と、該金属リードを前記保護筒
内で位置決めする位置決め部材（３）と、 前記金属リ
ードの挿入端に固着されてこれと導通する感温素子
（４）と、前記給電用ターミナル部（２１）を含む前記
金属リードおよび感温素子を覆ってこれらを保護筒内に
封入する樹脂体（５）とを備え、前記位置決め部材
（５）は、前記保護筒（１）の筒内周（１ａ）に沿う当
接面（３２ａ、３２ｂ）と、筒開口端面（１３ａ、１３
ｂ）に沿う当接面（３１ａ、３１ｂ）とを有して、前記
金属リード（２Ａ、２Ｂ）の筒軸直交方向と筒先端方向
への変位を規制するものであって、前記位置決め部材と
前記保護筒の筒内周との間には、前記樹脂体の注入開口
となる隙間が形成されている。In order to achieve the above-mentioned object, the present invention provides the temperature sensor according to the first aspect of the present invention, wherein the temperature sensor is a metal protective cylinder (1) having a closed tip, and the temperature sensor is inserted into the protective cylinder. And a plurality of plate-shaped metal leads (2A, 2B), each of which serves as a power supply terminal portion (21), and the metal leads.
A positioning member (3) for positioning inside, a temperature sensitive element (4) fixed to the insertion end of the metal lead and electrically connected thereto, and the metal lead and the temperature sensitive element including the power supply terminal portion (21). and a resin body encapsulating them in a protective tube (5) over the said positioning member
(5) is an abutment along the inner circumference (1a) of the protection cylinder (1).
The contact surfaces (32a, 32b) and the cylindrical opening end surfaces (13a, 13b).
b) along with the contact surfaces (31a, 31b),
Direction of cylinder lead of metal leads (2A, 2B) and cylinder tip direction
The displacement of the
An injection opening for the resin body is provided between the protective cylinder and the inner circumference of the cylinder.
Is formed .
【０００７】[0007]
【０００８】[0008]
【０００９】 請求項２に記載の発明においては、前記
位置決め部材（３）は、前記金属リード（２Ａ、２Ｂ）
を貫通させてその中間部を保持するものである。In the invention according to claim 2 , the positioning member (3) includes the metal leads (2A, 2B).
To pass through and hold the intermediate part.
【００１０】 請求項３に記載の発明においては、前記
位置決め部材（３）は、前記金属リード（２Ａ、２Ｂ）
の中間部に樹脂の一体成形により設られたものである。
請求項４に記載の発明においては、温度センサの製造方
法は、基端に給電用ターミナル部（２１）を有し平行に
配設された複数の板状金属リード（２Ａ、２Ｂ）の中間
部に、樹脂の一体成形で位置決め部材（３）を設ける工
程と、位置決め部材（３）を設けた前記金属リード（２
Ａ、２Ｂ）の先端に感温素子（４）を固着接続する工程
と、感温素子（４）を固着接続した金属リード（２Ａ、
２Ｂ）の先端を、先端閉鎖の金属製保護筒（１）内に挿
入して、前記位置決め部材（３）における前記保護筒の
筒内周に沿う当接面と筒開口端面に沿う当接面とにより
位置決めする工程と、位置決めした前記給電用ターミナ
ル部を含む前記金属リード（２Ａ、２Ｂ）および感温素
子（４）を覆ってこれらを前記保護筒（１）内に封入す
べく、前記位置決め部材と前記保護筒の筒内周との間に
形成された隙間から樹脂材を注入する工程とを備えてい
る。In the invention according to claim 3 , the positioning member (3) includes the metal leads (2A, 2B).
It is provided by integral molding of resin in the middle part of.
In the invention according to claim 4 , in the method for manufacturing a temperature sensor, a middle portion of a plurality of plate-shaped metal leads (2A, 2B) having a power feeding terminal portion (21) at a base end and arranged in parallel. A step of providing the positioning member (3) by resin integral molding, and the metal lead (2) provided with the positioning member (3).
A, 2B) a step of fixing and connecting the temperature sensitive element (4) to the tip of the metal lead (2A,
2B) is inserted into the metal protective cylinder (1) whose tip is closed to insert the protective cylinder of the positioning member (3) .
Positioning by a contact surface along the inner circumference of the cylinder and a contact surface along the end surface of the cylinder opening, and the positioned power supply terminator
Between the positioning member and the inner circumference of the protective cylinder so as to cover the metal leads (2A, 2B) including the ruled part and the temperature sensitive element (4) and to enclose them in the protective cylinder (1). To
And a step of injecting a resin material from the formed gap .
【００１１】なお、上記各手段のカッコ内の符号は、後
述する実施例記載の具体的手段との対応関係を示すもの
である。The reference numerals in parentheses of the above-mentioned means indicate the correspondence with the concrete means described in the embodiments described later.
【００１２】[0012]
【発明の作用効果】請求項１に記載の発明によれば、感
温素子が板状金属リードの挿入端に直接固着されている
から、従来のリード線が不要となる。本発明によれば、
従来のようなリード線両端での半田付け接続や保護チュ
ーブの装着等は不要であり、製造の手間が大幅に軽減さ
れる。また、従来のリード線、絶縁チューブ、樹脂ケー
ス等が不要となるから、部品点数も削減される。According to the invention described in claim 1, since the temperature sensitive element is directly fixed to the insertion end of the plate-shaped metal lead, the conventional lead wire becomes unnecessary. According to the invention,
There is no need for soldering connection at both ends of the lead wire or attachment of protective tubes, which is required in the conventional case, and the labor for manufacturing is greatly reduced. Further, since the conventional lead wire, insulating tube, resin case, etc. are not required, the number of parts can be reduced.
【００１３】 また、前記金属リードは位置決め部材に
より保護筒内で位置決めされているから、樹脂体を注入
成形する際に注入圧が作用しても、金属リードの変位を
確実に防止することができる。Further , since the metal lead is positioned in the protective cylinder by the positioning member, the displacement of the metal lead can be surely prevented even if the injection pressure is applied during the injection molding of the resin body. .
【００１４】 さらに、請求項１に記載の発明によれ
ば、樹脂体成形時の注入圧が主に作用する筒軸直交方向
と筒先端方向とで、金属リードの変位を効果的に防止す
ることができる。また、請求項２に記載の発明によれ
ば、複数の金属リードの保持が容易であり、請求項３に
記載の発明によれば、位置決め部材を容易に設けること
ができる。本発明の温度センサは、請求項４に記載の方
法により、金属リードの変位を生じることなく、簡易に
製造できる。 Further, according to the first aspect of the invention, the displacement of the metal lead can be effectively prevented in the cylinder axis orthogonal direction and the cylinder tip direction in which the injection pressure at the time of molding the resin body mainly acts. You can Further, according to the invention described in claim 2, it is easy to hold the plurality of metal leads, and according to the invention described in claim 3 , the positioning member can be easily provided. The temperature sensor of the present invention can be easily manufactured by the method described in claim 4 without causing displacement of the metal lead.
【００１５】[0015]
【実施例】以下、本発明を図に示す実施例について説明
する。
（第１実施例）図１において、先端閉鎖の金属製保護筒
１は先端半部（図の下半部）が薄肉となっており、厚肉
とした基端半部（図の上半部）の外周には取付け用のネ
ジ部１１と、六角状の回転操作部１２が形成されてい
る。保護筒１の内周１ａは上端開口部で拡開しており、
この開口部と上半部の筒内周に沿って樹脂製の位置決め
部材３が位置している。Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) In FIG. 1, the front end closed metal protective cylinder 1 has a thin front half (lower half in the figure), and a thicker base half (upper half in the figure). A screw part 11 for attachment and a hexagonal rotation operation part 12 are formed on the outer circumference of the bracket. The inner circumference 1a of the protective cylinder 1 is widened at the upper end opening,
A resin positioning member 3 is located along the opening and the inner circumference of the upper half of the cylinder.
【００１６】位置決め部材３の詳細を図２、図３に示
し、図２は位置決め部材の側面図、図３はその下方より
見た端面図である。図から判るように、位置決め部材３
は偏平体で、上端部３１の左右の側面３１ａ、３１ｂ
が、前記保護筒１内周の開口端面１３ａ、１３ｂ（図
１）に沿った形状に傾斜するとともに、上端部３１以外
の一般部３２の左右の側面３２ａ、３２ｂは、小径の円
形となった保護筒内周１ａに沿う円弧面となっている。The details of the positioning member 3 are shown in FIGS. 2 and 3. FIG. 2 is a side view of the positioning member, and FIG. 3 is an end view seen from below. As can be seen from the figure, the positioning member 3
Is a flat body, and the left and right side surfaces 31a, 31b of the upper end portion 31
Is inclined to a shape along the opening end surfaces 13a and 13b (FIG. 1) of the inner periphery of the protection cylinder 1, and the left and right side surfaces 32a and 32b of the general portion 32 other than the upper end portion 31 are circular with a small diameter. It is an arc surface along the inner circumference 1a of the protective cylinder.
【００１７】したがって、保護筒１内に装着した状態
で、位置決め部材３は図１に示すように、その左右の側
面３１ａ、３１ｂ、３２ａ、３２ｂが筒内周１ａに接し
て位置し、その一般部３２が筒内周１ａに当接して図の
水平方向への移動が規制されるとともに、上端部３１が
保護筒１開口の肩部１４に当接して図の下方への移動が
規制される。この状態で、偏平な位置決め部材３の前後
（紙面垂直方向）には筒内周１ａとの間に間隙（図３の
鎖線部分）が形成されて、樹脂材の注入開口となってい
る。Therefore, in the state in which the positioning member 3 is mounted in the protective cylinder 1, as shown in FIG. 1, the left and right side surfaces 31a, 31b, 32a, 32b of the positioning member 3 are located in contact with the inner circumference 1a of the cylinder. The part 32 contacts the inner circumference 1a of the cylinder to restrict the movement in the horizontal direction in the figure, and the upper end part 31 contacts the shoulder 14 of the opening of the protection cylinder 1 to restrict the downward movement of the figure. . In this state, a gap (indicated by a chain line in FIG. 3) is formed between the flat positioning member 3 and the cylinder inner circumference 1a before and after (in the direction perpendicular to the plane of the drawing), which serves as a resin material injection opening.
【００１８】一対の板状金属リード２Ａ、２Ｂが、左右
に間隔をおいて上記位置決め部材３を上下に貫通してお
り、これら金属リード２Ａ、２Ｂの基端部（上端部）は
幅広の給電用ターミナル部２１になるとともに、狭幅と
なった挿入端（下端）２２には感温素子としてのサーミ
スタチップ４が固着されている。すなわち、左右の金属
リード２Ａ、２Ｂの挿入端２２は図４（ａ）に示すよう
に、側面視で互いに対称形状に外方へ屈曲し、最先端は
再度内方へ屈曲して紙面垂直方向で一定間隔をおいて互
いに交差している。そしてこの交差部に、図４（ｂ）に
示すように前記サーミスタチップ４が挟持され、この状
態で半田付けにより最先端部間に固着接続されている。A pair of plate-shaped metal leads 2A, 2B vertically penetrate the positioning member 3 with a space left and right, and the base ends (upper ends) of the metal leads 2A, 2B are wide in power feeding. The thermistor chip 4 serving as a temperature sensing element is fixed to the insertion end (lower end) 22 which has become a narrower terminal portion 21 and has a narrow width. That is, as shown in FIG. 4A, the insertion ends 22 of the left and right metal leads 2A and 2B are bent outward in a symmetrical shape with each other in a side view, and the tip ends are bent inward again in a direction perpendicular to the plane of the drawing. And intersect each other at regular intervals. Then, as shown in FIG. 4B, the thermistor chip 4 is sandwiched between the intersecting portions, and in this state, the thermistor chips 4 are fixedly connected to each other by soldering between the tip portions.
【００１９】金属リード２Ａ、２Ｂの挿入端に固着され
たサーミスタチップ４は樹脂でコーティングされ（図１
の４１）、さらに位置決め部材３、金属リード２Ａ、２
Ｂ、サーミスタチップ４を覆うように、保護筒１内に樹
脂材が射出成形されて樹脂体５となっている。この樹脂
体５は、金属リード２Ａ、２Ｂのターミナル部２１下半
部を埋めるとともに、一部はターミナル部２１上半部を
囲んで上方へ開放する、保護筒１上端と同径の筒状のコ
ネクタケース部５１となっている。The thermistor chip 4 fixed to the insertion ends of the metal leads 2A and 2B is coated with resin (see FIG. 1).
41), the positioning member 3, the metal leads 2A, 2
B, a resin material is injection-molded in the protective cylinder 1 so as to cover the thermistor chip 4 to form a resin body 5. This resin body 5 has a tubular shape of the same diameter as the upper end of the protective tube 1 that fills the lower half of the terminal portion 21 of the metal leads 2A, 2B and partially opens upward so as to surround the upper half of the terminal portion 21. It is the connector case portion 51.
【００２０】このような温度センサを製造する方法を以
下に説明する。金属リード２Ａ、２Ｂは板材の打ち抜き
成形により製造され、サーミスタチップ４を取り付ける
前は左右一対の金属リード２Ａ、２Ｂがその一部２３
（図１）で連結状態となっている。この金属リード２
Ａ、２Ｂは金型内にセットされ、その中間部外周に前記
位置決め部材３を射出成形する。その後、金属リード２
Ａ、２Ｂの最先端部を左右方向（図４の前後方向）へ弾
性的に開いて、これらの間にサーミスタチップ４を挟持
させる。この状態で、金属リード２Ａ、２Ｂの最先端部
を半田槽内に浸漬して半田付けを行い、その外周に樹脂
のコーティング層４１（図１）を形成する。A method of manufacturing such a temperature sensor will be described below. The metal leads 2A, 2B are manufactured by punching a plate material, and before attaching the thermistor chip 4, the pair of left and right metal leads 2A, 2B are partially 23.
(Fig. 1) shows the connected state. This metal lead 2
A and 2B are set in a mold, and the positioning member 3 is injection-molded on the outer periphery of the intermediate portion thereof. Then metal lead 2
The tip ends of A and 2B are elastically opened in the left-right direction (front-back direction in FIG. 4), and the thermistor chip 4 is sandwiched between them. In this state, the tip ends of the metal leads 2A, 2B are dipped in a solder bath for soldering, and a resin coating layer 41 (FIG. 1) is formed on the outer periphery thereof.
【００２１】この後、左右の金属リード２Ａ、２Ｂの連
結部を切断し、位置決め部材３に一体に保持された一対
の金属リード２Ａ、２Ｂを前記保護筒１内へ挿入する。
この時、上記位置決め部材３が保護筒１の筒内周１ａに
接し、これにより、金属リード２Ａ、２Ｂは図１の水平
方向および下方向へ位置決めされる。この状態で全体を
金型内にセットし、樹脂材を射出して前記樹脂体５を成
形する。After this, the connecting portions of the left and right metal leads 2A, 2B are cut, and the pair of metal leads 2A, 2B integrally held by the positioning member 3 is inserted into the protective cylinder 1.
At this time, the positioning member 3 is in contact with the cylinder inner circumference 1a of the protective cylinder 1, whereby the metal leads 2A and 2B are positioned in the horizontal and downward directions in FIG. In this state, the whole is set in a mold and a resin material is injected to mold the resin body 5.
【００２２】この樹脂体５の成形時に、板状の金属リー
ド２Ａ、２Ｂには射出圧により、図１の水平方向と下方
向への荷重が作用するが、位置決め部材３に保持された
金属リード２Ａ、２Ｂはその変位が確実に防止される。
本実施例の温度センサによれば、従来のようなターミナ
ル部と感温素子を結ぶリード線の半田付け接続、絶縁チ
ューブの装着、樹脂ケースの設置等の製造の手間が不要
であるとともに、部品点数も大幅に削減される。At the time of molding the resin body 5, a load in the horizontal direction and the downward direction in FIG. 1 acts on the plate-shaped metal leads 2A and 2B due to the injection pressure, but the metal leads held by the positioning member 3 are used. The displacement of 2A and 2B is reliably prevented.
According to the temperature sensor of the present embodiment, there is no need for the manufacturing steps such as the conventional soldering connection of the lead wire connecting the terminal portion and the temperature sensitive element, the mounting of the insulating tube, the installation of the resin case, and the like. The points are also greatly reduced.
【００２３】（第２実施例）樹脂体の射出成形に伴う板
状金属リード２Ａ、２Ｂの変位は、比較的強度の大きい
板幅方向よりも板厚方向で甚だしい。したがって、図５
に示すように、左右の金属リード２Ａ、２Ｂの側縁を直
角に板厚方向へ屈曲成形してリブ２４とすれば、この方
向での剛性が向上するから、樹脂体５射出成形時の金属
リード２Ａ、２Ｂの変形変位をより効果的に防止するこ
とができる。
（第３実施例）樹脂体５成形時の金型の射出ゲート６
を、図６に示すように、金属リード２Ａ、２Ｂのターミ
ナル部２１の側方へ位置させて、比較的強度の大きい金
属リード２Ａ、２Ｂの板幅方向へ樹脂が流れるようにす
れば、図の水平方向における金属リード２Ａ、２Ｂの変
形変位を小さく抑えることができる。この場合、図の上
下方向への変位を、金型に設けた図略の保持部に金属リ
ード２Ａ、２Ｂを保持させることにより規制すれば、第
１実施例における位置決め部材は不要である。(Second Embodiment) The displacement of the plate-shaped metal leads 2A, 2B due to the injection molding of the resin body is greater in the plate thickness direction than in the plate width direction, which has a relatively high strength. Therefore, FIG.
If the side edges of the left and right metal leads 2A, 2B are bent at right angles in the plate thickness direction to form the ribs 24, the rigidity in this direction is improved. It is possible to more effectively prevent the deformation displacement of the leads 2A and 2B. (Third Embodiment) Mold injection gate 6 for molding resin body 5
As shown in FIG. 6, if the resin is positioned laterally of the terminal portion 21 of the metal leads 2A, 2B so that the resin flows in the plate width direction of the metal leads 2A, 2B having a relatively high strength. The deformation displacement of the metal leads 2A, 2B in the horizontal direction can be suppressed to be small. In this case, if the displacement in the vertical direction of the drawing is restricted by holding the metal leads 2A, 2B in a holding portion (not shown) provided in the mold, the positioning member in the first embodiment is not necessary.
【図１】本発明の第１実施例に係る温度センサの全体断
面図である。FIG. 1 is an overall sectional view of a temperature sensor according to a first embodiment of the present invention.
【図２】本発明の第１実施例に係る位置決め部材の側面
図である。FIG. 2 is a side view of the positioning member according to the first embodiment of the present invention.
【図３】本発明の第１実施例に係る位置決め部材の下方
より見た端面図で、断面部は図２のIII −III 線に沿う
ものである。FIG. 3 is an end view of the positioning member according to the first embodiment of the present invention as seen from below, and its cross section is taken along line III-III in FIG.
【図４】金属リードの先端部の拡大側面図である。FIG. 4 is an enlarged side view of a tip portion of a metal lead.
【図５】本発明の第２実施例に係る金属リードの横断面
図である。FIG. 5 is a cross-sectional view of a metal lead according to a second embodiment of the present invention.
【図６】本発明の第３実施例に係る温度センサの全体断
面図である。FIG. 6 is an overall sectional view of a temperature sensor according to a third embodiment of the present invention.
【図７】従来の温度センサの全体断面図である。FIG. 7 is an overall sectional view of a conventional temperature sensor.
１…金属製保護筒、１ａ…筒内周、１３ａ、１３ｂ…筒
開口端面、２Ａ、２Ｂ…金属リード、２１…給電用ター
ミナル部、３…位置決め部材、３１ａ、３１ｂ、３２
ａ、３２ｂ…当接面、４…サーミスタチップ、５…樹脂
体。DESCRIPTION OF SYMBOLS 1 ... Metal protective cylinder, 1a ... Cylinder inner circumference, 13a, 13b ... Cylinder opening end surface, 2A, 2B ... Metal lead, 21 ... Power supply terminal part, 3 ... Positioning member, 31a, 31b, 32
a, 32b ... Contact surface, 4 ... Thermistor chip, 5 ... Resin body.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−202038（ＪＰ，Ａ) 特開 昭58−158531（ＪＰ，Ａ) 特開 平５−340823（ＪＰ，Ａ) 特開 平１−145538（ＪＰ，Ａ) 実開 平４−85135（ＪＰ，Ｕ) 実開 昭61−173123（ＪＰ，Ｕ) 実開 平５−40840（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01K 7/22 G01K 1/08 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP 59-202038 (JP, A) JP 58-158531 (JP, A) JP 5-340823 (JP, A) JP 1- 145538 (JP, A) Actual development 4-85135 (JP, U) Actual development Sho 61-173123 (JP, U) Actual development 5-40840 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) G01K 7/22 G01K 1/08
Claims (4)
った複数の板状金属リードと、該金属リードを前記保護筒内で位置決めする位置決め部
材と、 前記金属リードの挿入端に固着されてこれと導通する感
温素子と、前記給電用ターミナル部を含む 前記金属リードおよび感
温素子を覆ってこれらを保護筒内に封入する樹脂体とを
備えた温度センサにおいて、 前記位置決め部材は、前記保護筒の筒内周に沿う当接面
と、筒開口端面に沿う当接面とを有して、前記金属リー
ドの筒軸直交方向と筒先端方向への変位を規制するもの
であって、 前記位置決め部材と前記保護筒の筒内周との間には、前
記樹脂体の注入開口となる間隙が形成されてい ることを
特徴とする温度センサ。1. A metal protective cylinder having a closed tip, a plurality of plate-shaped metal leads inserted into the protective cylinder and having a base end serving as a power feeding terminal portion, and the metal leads are positioned in the protective cylinder. Positioning unit
A material, a temperature-sensitive element fixed to the insertion end of the metal lead and electrically connected thereto, and a resin body for covering the metal lead and the temperature-sensitive element including the power supply terminal portion and enclosing them in a protective cylinder. In the temperature sensor including, the positioning member has a contact surface along the inner circumference of the protective cylinder.
And a contact surface along the tube opening end surface,
For restricting the displacement of the cylinder in the direction orthogonal to the cylinder axis and in the cylinder tip direction
Between the positioning member and the inner circumference of the protective cylinder,
A temperature sensor characterized in that a gap serving as an injection opening for the resin body is formed .
貫通させてその中間部を保持するものである請求項１に
記載の温度センサ。 2. The positioning member includes the metal lead.
The method according to claim 1, wherein the intermediate part is held by being penetrated.
The temperature sensor described.
中間部に樹脂の一体成形により設られたものである請求
項１に記載の温度センサ。3. The positioning member is provided on the metal lead.
Claim that it is provided by integral molding of resin in the middle part
Item 2. The temperature sensor according to Item 1 .
配設された複数の板状金属リードの中間部に、樹脂の一
体成形で位置決め部材を設ける工程と、 位置決め部材を設けた前記金属リードの先端に感温素子
を固着接続する工程と、 感温素子を固着接続した金属リードの先端を、先端閉鎖
の金属製保護筒内に挿入して、前記位置決め部材におけ
る前記保護筒の筒内周に沿う当接面と筒開口端面に沿う
当接面とにより位置決めする工程と、 位置決めした前記給電用ターミナル部を含む前記金属リ
ードおよび感温素子を覆ってこれらを前記保護筒内に封
入すべく、前記位置決め部材と前記保護筒の筒内周との
間に形成された隙間から樹脂材を注入する工程とを備え
ることを特徴とする温度センサの製造方法。 4. A power supply terminal is provided at the base end so as to be parallel to each other.
A resin is placed in the middle of the plurality of plate-shaped metal leads provided.
A step of providing a positioning member by body molding, and a temperature sensitive element at the tip of the metal lead provided with the positioning member.
The step of firmly connecting and connecting the tip of the metal lead to which the temperature sensitive element is firmly connected
Insert it into the metal protection tube of the
Along the inner surface of the protective cylinder along the abutment surface and the cylinder opening end surface
Positioning with the contact surface, and the metal reed including the positioned power feeding terminal portion.
Cover the card and the temperature sensitive element and seal them in the protective cylinder.
Of the positioning member and the inner circumference of the protective cylinder.
And a step of injecting a resin material through a gap formed between
A method of manufacturing a temperature sensor, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10112895A JP3493802B2 (en) | 1995-04-25 | 1995-04-25 | Temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10112895A JP3493802B2 (en) | 1995-04-25 | 1995-04-25 | Temperature sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08292106A JPH08292106A (en) | 1996-11-05 |
| JP3493802B2 true JP3493802B2 (en) | 2004-02-03 |
Family
ID=14292445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10112895A Expired - Fee Related JP3493802B2 (en) | 1995-04-25 | 1995-04-25 | Temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3493802B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4455839B2 (en) * | 2003-06-25 | 2010-04-21 | Ｔｄｋ株式会社 | Manufacturing method of temperature sensor |
| JP4765871B2 (en) * | 2005-11-09 | 2011-09-07 | 株式会社デンソー | Temperature sensor |
| JP4867437B2 (en) * | 2006-04-05 | 2012-02-01 | 株式会社デンソー | Temperature sensor |
| JP4760558B2 (en) * | 2006-06-09 | 2011-08-31 | 株式会社デンソー | Temperature sensor |
| KR100848159B1 (en) * | 2007-03-29 | 2008-07-23 | 삼성전자주식회사 | Temperature sensor |
| DE102014208595A1 (en) * | 2014-05-08 | 2015-11-12 | Zf Friedrichshafen Ag | Plastic injection-molded arrangement for holding at least one sensor |
| JP6414689B2 (en) * | 2015-02-24 | 2018-10-31 | 三菱マテリアル株式会社 | Electronic component and manufacturing method thereof |
| CN116249881A (en) * | 2022-03-03 | 2023-06-09 | 株式会社芝浦电子 | Temperature sensor, assembly, rotating electrical machine, and method for manufacturing temperature sensor |
-
1995
- 1995-04-25 JP JP10112895A patent/JP3493802B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08292106A (en) | 1996-11-05 |
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