JPH0535295Y2 - - Google Patents

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Publication number
JPH0535295Y2
JPH0535295Y2 JP5988988U JP5988988U JPH0535295Y2 JP H0535295 Y2 JPH0535295 Y2 JP H0535295Y2 JP 5988988 U JP5988988 U JP 5988988U JP 5988988 U JP5988988 U JP 5988988U JP H0535295 Y2 JPH0535295 Y2 JP H0535295Y2
Authority
JP
Japan
Prior art keywords
thin film
sensor
liquid level
longitudinal direction
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP5988988U
Other languages
Japanese (ja)
Other versions
JPH01163829U (en
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 filed Critical
Priority to JP5988988U priority Critical patent/JPH0535295Y2/ja
Publication of JPH01163829U publication Critical patent/JPH01163829U/ja
Application granted granted Critical
Publication of JPH0535295Y2 publication Critical patent/JPH0535295Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、熱電式液面計に用いられる液面位セ
ンサに関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid level sensor used in a thermoelectric liquid level gauge.

〔従来の技術〕[Conventional technology]

従来のこの種の液面位センサとしては、例えば
第6図に示す如き構造のものがある。すなわちこ
の従来例は、絶縁性樹脂基板1上に、金属を蒸着
して薄膜抵抗層である補償抵抗2a及びセンサ抵
抗2bと、2条の薄膜導電層3とを帯状に、しか
もそれら各層2a,2b,3が平行となるように
して形成し、それら薄膜導電層3の一端は前記
夫々補償抵抗2aと、センサ抵抗2bの一端に接
続するように形成すると共に、上記補償抵抗2a
とセンサ抵抗2bの他端部には、薄膜導電層から
なるリード端子4を形成したものである。
A conventional liquid level sensor of this type has a structure as shown in FIG. 6, for example. That is, in this conventional example, on an insulating resin substrate 1, a compensation resistor 2a and a sensor resistor 2b, which are thin film resistance layers formed by vapor-depositing metal, and two thin film conductive layers 3 are formed in a band shape, and each layer 2a, 2b and 3 are formed in parallel, and one end of the thin film conductive layer 3 is connected to one end of the compensation resistor 2a and the sensor resistor 2b, respectively, and the compensation resistor 2a is connected to the compensation resistor 2a.
A lead terminal 4 made of a thin film conductive layer is formed at the other end of the sensor resistor 2b.

そしてかかる構成の液面位センサ5は第7図で
示すように増副器20と微分回路30に接続さ
れ、この薄膜抵抗層2bに定電流源lによつて電
流を流すと、この電流によつてセンサ抵抗2bの
温度が上昇して抵抗が増加していく。この抵抗の
増加に応じて補償抵抗2aから出力される電圧が
増加する。この電圧の増加の割合は液面位Eが高
いと小さく、低いと大きくなる。
The liquid level sensor 5 having such a configuration is connected to an amplifier 20 and a differential circuit 30 as shown in FIG. Therefore, the temperature of the sensor resistor 2b rises and its resistance increases. The voltage output from the compensation resistor 2a increases in accordance with this increase in resistance. The rate of increase in this voltage is small when the liquid level E is high, and becomes large when the liquid level E is low.

そして、微分回路30が、補償抵抗2aから出
力される電圧変化(傾き)の割合に応じた電圧を
出力する。この出力電圧から液面位が検出される
ものである。
Then, the differentiating circuit 30 outputs a voltage according to the rate of voltage change (slope) output from the compensation resistor 2a. The liquid level is detected from this output voltage.

〔考案が解決しようとする課題〕[The problem that the idea aims to solve]

しかしながら、このような従来構造の液面位セ
ンサ5にあつては、基板1上に2本の帯状薄膜抵
抗層2a,2b及び2本の帯状薄膜導電層3,3
の4本が平行状態となるようにパターン形成され
ていることから、そのセンサ5全体形状の特に幅
aが大きくなつているために、このセンサ5を収
納するための容器も大形化されてしまい、さらに
はセンサ装置全体が大形化されて設備上の不具合
を生じたり、またコスト高となる等の不具合が考
えられる。
However, in the liquid level sensor 5 having such a conventional structure, two strip-shaped thin film resistance layers 2a, 2b and two strip-shaped thin film conductive layers 3, 3 are provided on the substrate 1.
Since the pattern is formed so that the four sensors are parallel, the overall shape of the sensor 5, especially the width a, is increased, so the container for storing the sensor 5 is also increased in size. In addition, the sensor device as a whole may become larger, which may cause problems with the equipment or increase costs.

〔課題を解決するための手段〕[Means to solve the problem]

本考案は、かかることに鑑みてなされたもの
で、帯状の可撓性絶縁樹脂シート上に、その長手
方向に沿つて平行する2条の長尺薄膜抵抗層を形
成し、このシートを2つ折りとなしてその薄膜抵
抗層の両端部を信号取り出端子とすることによ
り、センサの全体幅を略半分に縮少せしめること
ができ、これによりセンサ装置の小型化、さらに
はコストダウンが達成できる液面位センサを提供
することにある。
The present invention was developed in view of the above, and consists of forming two elongated thin film resistance layers parallel to each other along the longitudinal direction on a band-shaped flexible insulating resin sheet, and folding the sheet in two. By using both ends of the thin film resistive layer as signal output terminals, the overall width of the sensor can be reduced by approximately half, thereby achieving miniaturization of the sensor device and further cost reduction. An object of the present invention is to provide a liquid level sensor.

〔実施例〕〔Example〕

以下に本考案を第1図乃至第5図に示す実施例
に基いて詳細に説明する。
The present invention will be explained in detail below based on the embodiments shown in FIGS. 1 to 5.

10は可撓性絶縁性樹脂シートで、その上には
帯状であり、しかもその長さ方向に沿つて2条の
薄膜抵抗層11a,及び11bがその長手方向中
央部で2分割された状態で形成されて、2分割さ
れた薄膜抵抗層11a及び11bの中央部分割端
間には薄膜導体層12が形成され、それら2分割
された薄膜抵抗層11a,及び11bを電気的に
接続している。また薄膜抵抗層11a及び11b
の前記薄膜導体層12が設けられた反対側の端部
にはリード部13が薄膜導体層12と同様に形成
されると共に、前記薄膜抵抗層11a,及び11
b、薄膜導体層12及びリード部13の夫々の表
面は、前記シート10と同一のシート10′が被
せられ、このシート10′は接着剤14を介して
水密的に密封されている。15はホルダーで、長
手方向中央部の折り曲げ線Eを基準として折り曲
げられたセンサ本体16の薄膜抵抗層12が設け
られていない部分を挟持せしめる。なお、第3図
及び第5図に示す如く、ホルダー15からはみ出
した部分F及びその上側のホルダー15の挟持さ
れた部分Gのシート10上には薄膜導体層12が
形成され、その薄膜導体層12と薄膜抵抗層11
a,11bとの境い目は、第4図に示す如く、セ
ンサ本体16がタンク17内にセツトされた場
合、エンジンへの給油パイプ18のフイルタ19
が取付けられた下端面に一致する位置(タンク1
7の底からHの高さの位置)におかれる。
Reference numeral 10 denotes a flexible insulating resin sheet, on which is a strip-shaped thin film resistance layer 11a and 11b with two thin film resistance layers 11a and 11b divided into two along the longitudinal direction. A thin film conductor layer 12 is formed between the ends of the central part of the thin film resistance layers 11a and 11b, which are formed and divided into two, and electrically connects the two divided thin film resistance layers 11a and 11b. . Moreover, the thin film resistance layers 11a and 11b
A lead portion 13 is formed in the same way as the thin film conductor layer 12 at the end opposite to the thin film conductor layer 12, and the thin film resistance layer 11a and
b. The surfaces of the thin film conductor layer 12 and the lead portions 13 are covered with a sheet 10' identical to the sheet 10, and this sheet 10' is sealed watertight via an adhesive 14. Reference numeral 15 denotes a holder, which holds the portion of the sensor body 16 that is bent with reference to the bending line E at the center in the longitudinal direction, where the thin film resistance layer 12 is not provided. As shown in FIGS. 3 and 5, a thin film conductor layer 12 is formed on the sheet 10 at a portion F protruding from the holder 15 and a portion G sandwiched by the holder 15 above it. 12 and thin film resistance layer 11
As shown in FIG. 4, when the sensor main body 16 is set in the tank 17, the boundary between the a and 11b is the filter 19 of the oil supply pipe 18 to the engine.
(Tank 1)
7) at a height of H from the bottom.

すなわち、給油パイプ18の下端面は、その位
置に燃料が低下したときに燃料計がエンプテイを
指示する位置に相当する。
That is, the lower end surface of the fuel supply pipe 18 corresponds to the position at which the fuel gauge indicates empty when the fuel level drops to that position.

以上が本実施例の構成であるが、上記説明で明
らかなように、液面位センサ本体16は平行する
2条の薄膜抵抗層11a及び11bを長尺の可撓
性絶縁性樹脂シート上に形成し、これを長手方向
中央部より2つ折りすることにより、従来の液面
位センサ回路と同等の回路構成となる。
The above is the configuration of this embodiment, and as is clear from the above description, the liquid level sensor main body 16 has two parallel thin film resistance layers 11a and 11b on a long flexible insulating resin sheet. By forming this and folding it in half from the center in the longitudinal direction, a circuit configuration equivalent to a conventional liquid level sensor circuit can be obtained.

〔考案の効果〕[Effect of idea]

従つて本考案によれば可撓性シート10,1
0′に2条の薄膜抵抗層11a,11bをパター
ン形成した長尺のセンサ本体16をその長手方向
中央部より2つ折りして構成する液面位センサで
あるから、その可撓性シート10,10′の幅を
従来の基板に対して略1/2とすることができ、こ
れによつてセンサ装置の小型化及びこれに伴なう
生産コストを低減せしめることができる効果があ
る。
Therefore, according to the present invention, the flexible sheet 10,1
Since the liquid level sensor is constructed by folding a long sensor main body 16 in which two thin film resistance layers 11a and 11b are patterned at 0' from the center in the longitudinal direction, the flexible sheet 10, The width of the substrate 10' can be reduced to approximately 1/2 that of a conventional substrate, which has the effect of reducing the size of the sensor device and the associated production costs.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案よりなる液面位センサの実施例
を示した正面説明図、第2図は第1図におけるA
−A′線断面図、第3図はシートをホルダーに取
付けた状態の斜視図、第4図はセンサをタンク内
に設備した状態の説明図、第5図はセンサの要部
拡大断面図、第6図は従来例の正面説明図、第7
図はセンサ回路の説明図である。 10,10′……可撓性絶縁性樹脂シート、1
1a,11b……薄膜抵抗層、12……薄膜導体
層、13……リード部、14……接着剤、15…
…ホルダー、16……センサ本体、17……タン
ク、18……給油パイプ、19……フイルタ。
Fig. 1 is a front explanatory view showing an embodiment of the liquid level sensor according to the present invention, and Fig. 2 is an A in Fig. 1.
-A' line sectional view, Figure 3 is a perspective view of the seat attached to the holder, Figure 4 is an explanatory diagram of the sensor installed in the tank, Figure 5 is an enlarged sectional view of the main part of the sensor, Figure 6 is a front explanatory view of the conventional example;
The figure is an explanatory diagram of the sensor circuit. 10, 10'...Flexible insulating resin sheet, 1
1a, 11b...Thin film resistance layer, 12...Thin film conductor layer, 13...Lead portion, 14...Adhesive, 15...
...Holder, 16...Sensor body, 17...Tank, 18...Oil supply pipe, 19...Filter.

Claims (1)

【実用新案登録請求の範囲】 1 帯状かつ可撓性を有する絶縁性樹脂シート1
0上にその長手方向に沿つて、2分割された薄
膜抵抗層と、この薄膜抵抗層の分割両端を接続
する薄膜導体層12に形成してセンサ本体16
を構成し、該センサ本体16を、その長手方向
略中央部で2つ折りとなしてなる熱電式液面位
センサ。 2 帯状かつ可撓性を有する絶縁性樹脂シート1
0上に、その長手方向中央部を境として、薄膜
抵抗層及び薄膜導体層を区別して形成せしめ、
該長手方向中央部で2つ折りとなしてなる請求
項1記載の熱電式液面位センサ。
[Scope of claims for utility model registration] 1. Strip-shaped and flexible insulating resin sheet 1
0 along the longitudinal direction, a thin film resistive layer divided into two, and a thin film conductor layer 12 connecting both ends of the divided thin film resistive layer are formed on the sensor body 16.
, and the sensor main body 16 is folded in half at approximately the center in the longitudinal direction. 2 Band-shaped and flexible insulating resin sheet 1
0, a thin film resistance layer and a thin film conductor layer are separately formed on the longitudinal center portion thereof as a boundary,
2. The thermoelectric liquid level sensor according to claim 1, wherein the thermoelectric liquid level sensor is folded in two at the central portion in the longitudinal direction.
JP5988988U 1988-05-06 1988-05-06 Expired - Lifetime JPH0535295Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5988988U JPH0535295Y2 (en) 1988-05-06 1988-05-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5988988U JPH0535295Y2 (en) 1988-05-06 1988-05-06

Publications (2)

Publication Number Publication Date
JPH01163829U JPH01163829U (en) 1989-11-15
JPH0535295Y2 true JPH0535295Y2 (en) 1993-09-08

Family

ID=31285625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5988988U Expired - Lifetime JPH0535295Y2 (en) 1988-05-06 1988-05-06

Country Status (1)

Country Link
JP (1) JPH0535295Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9295057B2 (en) 1996-11-07 2016-03-22 Interdigital Technology Corporation Method and apparatus for compressing and transmitting ultra high speed data

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9295057B2 (en) 1996-11-07 2016-03-22 Interdigital Technology Corporation Method and apparatus for compressing and transmitting ultra high speed data

Also Published As

Publication number Publication date
JPH01163829U (en) 1989-11-15

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