JPH0616824U - Liquid level detector - Google Patents
Liquid level detectorInfo
- Publication number
- JPH0616824U JPH0616824U JP5395992U JP5395992U JPH0616824U JP H0616824 U JPH0616824 U JP H0616824U JP 5395992 U JP5395992 U JP 5395992U JP 5395992 U JP5395992 U JP 5395992U JP H0616824 U JPH0616824 U JP H0616824U
- Authority
- JP
- Japan
- Prior art keywords
- liquid level
- movable contact
- level detector
- contact
- plate
- 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.)
- Granted
Links
Landscapes
- Level Indicators Using A Float (AREA)
Abstract
(57)【要約】 （修正有）
【目的】 本考案は、自動車に設備される燃料タンク内
の燃料量を検知する液面検出器に関するものである。
【構成】 車両用燃料タンク内の液面に追従して動作す
るフロートと、このフロート動作に連動する接点板（１
５）に取付けられる可動接点（１６）と、この可動接点
が摺動する導体パターン（１３）を施した抵抗板（１
１）を有する液面検出器において、上記可動接点（１
６）の材質として卑金属合金であるニッケル−クローム
合金を用いていることを特徴とする液面検出器。
(57) [Summary] (Modified) [Objective] The present invention relates to a liquid level detector for detecting the amount of fuel in a fuel tank installed in an automobile. [Structure] A float that operates following the liquid level in a vehicle fuel tank, and a contact plate (1
5) a movable contact (16) attached to the movable contact and a resistance plate (1) provided with a conductor pattern (13) on which the movable contact slides.
In the liquid level detector having 1), the movable contact (1
A liquid level detector characterized in that a nickel-chrome alloy which is a base metal alloy is used as the material of 6).
Description
【０００１】[0001]
本考案は、自動車に設備される燃料タンク内の燃料量を検知する液面検出器に 関するものである。 The present invention relates to a liquid level detector for detecting the amount of fuel in a fuel tank installed in an automobile.
【０００２】[0002]
従来のこの種の液面検出器構造として、例えば図１に示す如き構造のものがあ る。つまり１は燃料タンク２の開口部に取付けられる取付板であって、この取付 板１の下側には、セラミック基板３が垂下状態で取付けられている。またこの基 板３の側面には抵抗パターン４を設けている抵抗板５が取付けられている。さら にこの基板３には、フロートアーム６の一端が回動自在に軸支されており、その フロートアーム６の他端にはフロート７が取付けられている。また上記フロート アーム６の一端部にはキャリア８が固定されており、このキャリア８には、前記 抵抗パターン４に摺接される可動接点９を有する接点板１０が保持されている。 As a conventional liquid level detector structure of this type, there is a structure as shown in FIG. 1, for example. That is, reference numeral 1 denotes a mounting plate mounted on the opening of the fuel tank 2, and below the mounting plate 1, a ceramic substrate 3 is mounted in a suspended state. A resistance plate 5 having a resistance pattern 4 is attached to the side surface of the base plate 3. Further, one end of a float arm 6 is rotatably supported by the substrate 3, and a float 7 is attached to the other end of the float arm 6. A carrier 8 is fixed to one end of the float arm 6, and a carrier 10 having a movable contact 9 which is slidably contacted with the resistance pattern 4 is held on the carrier 8.
【０００３】 そして燃料タンク２内の液面に追従してフロート７が動作され、この動作で抵 抗板５上を摺動する可動接点の変位で抵抗値が変化し、これによって燃料タンク ２内の液量が検出できる構造となっているものである。Then, the float 7 is operated following the liquid level in the fuel tank 2, and the resistance value is changed by the displacement of the movable contact sliding on the resistor plate 5 by this operation, whereby the inside of the fuel tank 2 is changed. It has a structure that can detect the amount of liquid.
【０００４】[0004]
ところが上記可動接点９として使用されている材質は、導通性を高めるために 一般的には銀が用いられるが、この銀は、燃料タンク２内に入れられている燃料 （ガソリン）中に含まれている硫黄成分により硫化銀となり、これによって接触 抵抗が増大して導通不良を起すということがある。そこで銀の硫化を防止するた めに、パラジュームを混合した貴金属系の合金、銀−パラジュウムの合金を使用 しているが、この貴金属系合金である接点材料は非常に高価なものであるために 、経済性に欠けるものであった。 However, the material used for the movable contact 9 is generally silver in order to improve conductivity, and this silver is contained in the fuel (gasoline) contained in the fuel tank 2. There is a case where the sulfur component that is generated turns into silver sulfide, which increases the contact resistance and causes poor conduction. Therefore, in order to prevent sulfuration of silver, a noble metal alloy mixed with palladium and a silver-palladium alloy are used, but this precious metal alloy contact material is very expensive. , Was lacking in economy.
【０００５】[0005]
本考案はかる従来の欠点に着目してなされたもので、安価なる材質であるにも かかわらず、硫化反応を未然に防止することができ、さらに安価であるニッケル −クローム合金を使用して経済性及び耐久性、接触信頼性に優れた可動接点を用 いる液面検出器を提供することにある。 The present invention has been made by paying attention to such conventional drawbacks.Although it is an inexpensive material, it is possible to prevent the sulfidation reaction in advance, and it is economical to use a nickel-chromium alloy which is cheaper. Another object of the present invention is to provide a liquid level detector that uses a movable contact with excellent durability and contact reliability.
【０００６】[0006]
以下に本考案を図面に示す実施例に基いて詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.
【０００７】 図２において、１１は上記構造の液面検出器に使用される抵抗板であって、こ の抵抗板１１はセラミックス製の絶縁板１２の表面に導体パターン１３と、この 導体パターン１３に接続される抵抗パターン１４が、例えば印刷手段によって形 成されている。１５は従来例で説明したフロートと連動する接点板であって、こ の接点板１５には、前記の導体パターン１３上を摺動される可動接点１６が、例 えば加締め手段等によって固定されている。In FIG. 2, reference numeral 11 denotes a resistance plate used in the liquid level detector having the above-mentioned structure. The resistance plate 11 has a conductor pattern 13 on the surface of an insulating plate 12 made of ceramics, and The resistance pattern 14 connected to is formed by, for example, a printing unit. Reference numeral 15 is a contact plate that interlocks with the float described in the conventional example. The movable contact 16 that slides on the conductor pattern 13 is fixed to the contact plate 15 by, for example, caulking means. ing.
【０００８】 この可動接点１６の材質は卑金属合金であるニッケル−クローム合金である。 ニッケルと、クロームとの配合量は特に限定されるものではないが、本考案者に よる実験では、例えばＪＩＳ−ＮＣＨＷである合金つまり、ニッケル７７％クロ ーム２０％を含む合金を使用した場合に、可動接点としての導通性、耐蝕性、耐 摩耗性に優れた結果が得られた。The material of the movable contact 16 is a nickel-chrome alloy which is a base metal alloy. The mixing amount of nickel and chrome is not particularly limited, but in the experiment by the present inventor, for example, when an alloy such as JIS-NCHW, that is, an alloy containing 77% nickel and 20% chromium is used. Moreover, excellent results were obtained in terms of conductivity, corrosion resistance, and wear resistance as a movable contact.
【０００９】 このように、本実施例ではニッケル−クローム合金を接点材料として使用した ことにより接点として導通性、耐蝕性、耐摩耗性に優れて充分な接触信頼性及び 耐久性を保有しながらも、従来の貴金属系合金である接点材料に比して大幅なコ ストダウンが可能であって、経済性に優れた液面検出器が提供できるものである 。As described above, in this embodiment, since the nickel-chromium alloy is used as the contact material, the contact has excellent conductivity, corrosion resistance, and wear resistance, and has sufficient contact reliability and durability. As compared with conventional contact materials, which are precious metal alloys, the cost can be significantly reduced, and an economical liquid level detector can be provided.
【００１０】[0010]
【考案の効果】 以上のように本考案は、車両用燃料タンク内の液面に追従して動作するフロー トと、このフロート動作に連動する接点板１５に取付けられる可動接点１６と、 この可動接点が摺動する導体パターン１５を施した抵抗板１１を有する液面検出 器において、上記可動接点１６の材質として卑金属合金であるニッケルクローム 合金を用いている液面検出器であるから、これによればに接点として導通性、耐 蝕性、耐摩耗性に優れて充分な接触信頼性及び耐久性を保有しながらも、従来の 貴金属系合金である接点材料に比して大幅なコストダウンが可能であって、経済 性に優れた液面検出器が提供できるという効果がある。As described above, according to the present invention, the float that operates by following the liquid level in the vehicle fuel tank, the movable contact 16 that is attached to the contact plate 15 that interlocks with the float operation, and the movable contact In the liquid level detector having the resistance plate 11 having the conductor pattern 15 on which the contact slides, since the movable contact 16 is made of nickel chrome alloy which is a base metal alloy, As a result, the contact is excellent in conductivity, corrosion resistance, and wear resistance, and while maintaining sufficient contact reliability and durability, it is possible to significantly reduce the cost compared with the conventional contact material which is a precious metal alloy. It is possible to provide a liquid level detector which is possible and excellent in economy.
【図１】従来例の液面検出器の構造説明図。FIG. 1 is a structural explanatory view of a conventional liquid level detector.
【図２】本考案実施例の液面検出器の要部構造説明図。FIG. 2 is an explanatory view of a main structure of a liquid level detector according to an embodiment of the present invention.
１１…抵抗板 １２…絶縁板 １３…導体パターン １４…抵抗パターン １５…接点板 １６…可動接点 11 ... Resistance plate 12 ... Insulation plate 13 ... Conductor pattern 14 ... Resistance pattern 15 ... Contact plate 16 ... Moving contact
Claims (1)
作するフロートと、このフロート動作に連動する接点板
（１５）に取付けられる可動接点（１６）と、この可動
接点が摺動する導体パターン（１３）を施した抵抗板
（１１）を有する液面検出器において、上記可動接点
（１６）の材質として卑金属合金であるニッケル−クロ
ーム合金を用いていることを特徴とする液面検出器。1. A float that operates following the liquid level in a vehicle fuel tank, a movable contact (16) attached to a contact plate (15) that interlocks with this float operation, and this movable contact slides. A liquid level detector having a resistance plate (11) provided with a conductor pattern (13), characterized in that a nickel-chrome alloy which is a base metal alloy is used as a material of the movable contact (16). vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992053959U JP2593049Y2 (en) | 1992-07-31 | 1992-07-31 | Liquid level detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992053959U JP2593049Y2 (en) | 1992-07-31 | 1992-07-31 | Liquid level detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0616824U true JPH0616824U (en) | 1994-03-04 |
| JP2593049Y2 JP2593049Y2 (en) | 1999-03-31 |
Family
ID=12957235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992053959U Expired - Lifetime JP2593049Y2 (en) | 1992-07-31 | 1992-07-31 | Liquid level detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593049Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026620A1 (en) * | 1998-10-30 | 2000-05-11 | Nippon Seiki Co., Ltd | Level indicator and method of manufacturing conductor electrode of level indicator |
| WO2002014806A1 (en) * | 2000-07-31 | 2002-02-21 | Nippon Seiki Co., Ltd. | Resistance type liquid level measuring apparatus |
| WO2004020959A1 (en) * | 2002-08-30 | 2004-03-11 | Nippon Seiki Co.,Ltd. | Level sensor |
| KR100435335B1 (en) * | 2002-01-11 | 2004-06-10 | 현대자동차주식회사 | Electrode compositions of Fuel Sender for automotible |
-
1992
- 1992-07-31 JP JP1992053959U patent/JP2593049Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026620A1 (en) * | 1998-10-30 | 2000-05-11 | Nippon Seiki Co., Ltd | Level indicator and method of manufacturing conductor electrode of level indicator |
| WO2002014806A1 (en) * | 2000-07-31 | 2002-02-21 | Nippon Seiki Co., Ltd. | Resistance type liquid level measuring apparatus |
| KR100435335B1 (en) * | 2002-01-11 | 2004-06-10 | 현대자동차주식회사 | Electrode compositions of Fuel Sender for automotible |
| WO2004020959A1 (en) * | 2002-08-30 | 2004-03-11 | Nippon Seiki Co.,Ltd. | Level sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2593049Y2 (en) | 1999-03-31 |
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