CN101907477A - Wear-resistance and oil-resistance liquid level sensor - Google Patents
Wear-resistance and oil-resistance liquid level sensor Download PDFInfo
- Publication number
- CN101907477A CN101907477A CN2010102158204A CN201010215820A CN101907477A CN 101907477 A CN101907477 A CN 101907477A CN 2010102158204 A CN2010102158204 A CN 2010102158204A CN 201010215820 A CN201010215820 A CN 201010215820A CN 101907477 A CN101907477 A CN 101907477A
- Authority
- CN
- China
- Prior art keywords
- resistance
- contacts
- reed
- band
- wear
- 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
Links
Images
Abstract
The invention relates to a wear-resistance and oil-resistance liquid level sensor, relating to the technical field of sensors. A framework is provided with a resistor disc and is connected with a reed through a dowel, a reed support and a spring. The liquid level sensor is characterized in that two band-shaped contacts are respectively welded in one radial direction of the reed facing the resistor disc; each band-shaped contact is provided with an alloy bottom band; and the upper surfaces of the alloy bottom bands are respectively fixedly connected with a precious metal wear-resistance layer. In the invention, the contacts are in a band shape, are convenient to manufacture and are fixed on the reed through a welding method as long as the contacts are cut off; when in fixing, the stretching directions of the contacts can be consistent with the used sliding direction to form the same metallographic phases; the parts in contact with the resistor disc are the precious metal wear-resistance layers of the band-shaped contacts, and therefore, the contacts are more beneficial to abrasion and electric contact compared with the traditional riveting points. Moreover, the compound precious metal layer has smaller shape and lower cost, is beneficial to saving-type volume production and is beneficial to reducing product cost.
Description
Technical field
The present invention relates to sensor technical field, especially liquid level sensor.
Background technology
Contact liquid level sensor of the prior art utilization can change resistance value with respect to the contact on the resistor disc rotary type reed, realizes the output of transducing signal.Because the single contact of existing employing welding is good inadequately aspect wear-resistant and oil resistant corrosion, particularly in the various oil that contain additive impurity.The contact is easy to be corroded in fuel oil, causes loose contact, and the signal stabilization of output is relatively poor, and the automobile oil gauge indication is inaccurate.
Summary of the invention
The object of the invention is to design a kind of liquid level sensor that can overcome prior art defective, wear-resistance and oil-resistance that wearing quality signal stabilization good, transmission is good.
The present invention includes skeleton, resistor disc is set on skeleton, be connected reed by pin with reed support and spring on the skeleton, it is characterized in that upwards welding two banding pattern contacts respectively towards a footpath of the described reed of resistor disc, described each banding pattern contact is provided with the alloy tail band, at the fixedly connected noble metal wearing layer of upper surface difference of described alloy tail band.
Described noble metal wearing layer is a gold alloy layer.
Contact of the present invention is a banding pattern, and convenient the making only needs the cut-out back to be fixed on the reed by the method for welding, in the time of fixedly, can its draw direction is consistent with the glide direction of use, form identical metallographic, the part that contacts with resistor disc among the present invention is the noble metal wearing layer of two banding pattern contacts.The present invention is more conducive to wear and tear and the contacting of electrical property than traditional riveting point, and the layer of precious metal shape of complex is littler, and cost is lower, is beneficial to economizing type and produces in enormous quantities, helps reducing cost of products.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the structural representation with reed amplification of banding pattern contact.
Fig. 3 is that the A-A of Fig. 2 is to sectional drawing.
Embodiment
As shown in Figure 1, 2, 3, on skeleton 1, fixedly install resistor disc 3, also be connected reed 4 on the skeleton 1 by pin 7 and reed support 2 and spring 6.
Be respectively equipped with alloy tail band 5-1 upwards welding 5, two banding pattern contacts 5, two banding pattern contacts respectively, at the upper surface of alloy tail band 5-1 fixedly connected billon noble metal wearing layer 5-2 respectively towards a footpath of the reed 4 of resistor disc 3.
Claims (2)
1. the liquid level sensor of a wear-resistance and oil-resistance, comprise skeleton, resistor disc is set on skeleton, be connected reed by pin with reed support and spring on the skeleton, it is characterized in that upwards welding two banding pattern contacts respectively towards a footpath of the described reed of resistor disc, described each banding pattern contact is provided with the alloy tail band, at the fixedly connected noble metal wearing layer of upper surface difference of described alloy tail band.
2. according to the liquid level sensor of the described wear-resistance and oil-resistance of claim 1, it is characterized in that described noble metal wearing layer is a gold alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102158204A CN101907477A (en) | 2010-06-25 | 2010-06-25 | Wear-resistance and oil-resistance liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102158204A CN101907477A (en) | 2010-06-25 | 2010-06-25 | Wear-resistance and oil-resistance liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101907477A true CN101907477A (en) | 2010-12-08 |
Family
ID=43263001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102158204A Pending CN101907477A (en) | 2010-06-25 | 2010-06-25 | Wear-resistance and oil-resistance liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101907477A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538903A (en) * | 2012-01-17 | 2012-07-04 | 江苏奥力威传感高科股份有限公司 | Multi-claw wear-resistant oil-resistant liquid level sensor |
| CN108020275A (en) * | 2016-11-04 | 2018-05-11 | 施耐德电子系统美国股份有限公司 | The eddy-current flowmeter used in harsh environment |
-
2010
- 2010-06-25 CN CN2010102158204A patent/CN101907477A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538903A (en) * | 2012-01-17 | 2012-07-04 | 江苏奥力威传感高科股份有限公司 | Multi-claw wear-resistant oil-resistant liquid level sensor |
| CN102538903B (en) * | 2012-01-17 | 2014-08-20 | 江苏奥力威传感高科股份有限公司 | Multi-claw wear-resistant oil-resistant liquid level sensor |
| CN108020275A (en) * | 2016-11-04 | 2018-05-11 | 施耐德电子系统美国股份有限公司 | The eddy-current flowmeter used in harsh environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201255672Y (en) | Force measuring sensor | |
| CN101907477A (en) | Wear-resistance and oil-resistance liquid level sensor | |
| CN201772913U (en) | Abrasion-resistant and oil-resistant liquid level sensor | |
| CN204286670U (en) | A kind of high temperature resistant miniaturized pressure sensor | |
| CN102278454A (en) | Novel turbine structure | |
| WO2011099711A3 (en) | Method for manufacturing a contact tip for a welding torch through forging | |
| CN201548287U (en) | Zinc-white copper alloy contact liquid level and oil level sensor | |
| CN201740565U (en) | Wear-resistant and oil-resistant liquid level sensor | |
| CN102806297A (en) | Novel hard alloy cold forging die for combined gear ring | |
| CN101922956A (en) | Wear-resistant oil-proof liquid level sensor | |
| CN203615996U (en) | Wire rod weighing machine | |
| CN201723729U (en) | Single seat sleeve regulating valve | |
| CN201914671U (en) | E-type bolt for scraper conveyor | |
| CN202430272U (en) | Metallurgical weighing system for electroslag furnace | |
| CN204944640U (en) | Pick gold dual mode transducer | |
| CN208936952U (en) | A kind of clamp arm of stationary fixture | |
| CN200999152Y (en) | Novel chute | |
| CN203125743U (en) | Steel wire rope for cutting marble | |
| CN203837773U (en) | Oil level sensor for automobile | |
| CN102277524B (en) | Au-Fe-Ni-Cr alloy | |
| CN202729124U (en) | Steel belt | |
| CN2920465Y (en) | Wiredrawing roller for wire drawing factory | |
| CN202126315U (en) | Tungsten rhenium 604-model connector | |
| CN201212529Y (en) | Bearing positioning pipe sleeve | |
| CN205185976U (en) | Air bag loudspeaker pressfitting support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101208 |