CN203629631U - Liquid level sensing device for automobile washer - Google Patents
Liquid level sensing device for automobile washer Download PDFInfo
- Publication number
- CN203629631U CN203629631U CN201320757162.0U CN201320757162U CN203629631U CN 203629631 U CN203629631 U CN 203629631U CN 201320757162 U CN201320757162 U CN 201320757162U CN 203629631 U CN203629631 U CN 203629631U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- washing tank
- sensing device
- level sensing
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 238000005406 washing Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 9
- 230000006698 induction Effects 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052946 acanthite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- PGWMQVQLSMAHHO-UHFFFAOYSA-N sulfanylidenesilver Chemical group [Ag]=S PGWMQVQLSMAHHO-UHFFFAOYSA-N 0.000 description 1
Images
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a liquid level sensing device for an automobile washer. The liquid level sensing device comprises a washing tank. Two sensor terminals with different heights are arranged in the washing tank and connected with a display instrument, and therefore a loop is formed. One end of each sensor terminal is a flat plug-in piece, and the other end of each sensor terminal is a cylindrical conducting rod. An annular groove is formed in each cylindrical conducting rod. The flat plug-in pieces arranged at one ends are used for connecting the sensor terminals with a circuit, and the cylindrical conducting rods arranged at the other ends are used for increasing the contact area between the sensor terminals and water, so that the conducting performance is better. The annular grooves are formed in the sensor terminals, so that firmness between the sensor terminals and the annular grooves is improved, and the problem that washing liquid is leaked from gaps formed at the injection molding positions between the sensor terminals and the washing tank is avoided.
Description
Technical field
The utility model relates to automobile washer field, specifically a kind of automobile washer liquid level sensing device, and its function is that cleansing solution liquid level is reported to the police lower than ultimate value state in washing tank, occurs not having the situation of cleansing solution in prevention washing tank.
Background technology
At present, automobile air window purging system, mainly comprise washing tank, washing pump, cleansing solution, pipeline, joint, nozzle and liquid level sensor, and liquid level sensor is to join at high the function using on vehicle to be, it is reported to the police lower than ultimate value state in washing tank to cleansing solution, occurs not having the situation of cleansing solution in prevention washing tank.For air regulator purging system, washing tank storage cleansing solution is most important function.Routine does not have the washing tank of level sensing, and vehicle can not identify in washing tank whether have glass cleansing solution, while only having the function that starts windscreen washing, just knows in washing tank, whether there is water.When Vehicle Driving Cycle is during at the more environment of sand and dust, windshield sight line, lack of defination, if now there is no glass cleansing solution, will have a strong impact on traffic safety.Height is joined on B level car washing tank generally can arrange liquid level sensor.
The ultimate principle of scrubber level sensor: vehicle power supply output voltage is to instrument, and after instrument, instrument output voltage is to liquid level sensor.When the liquid level of cleansing solution in washing tank is lower than the sensor terminal of upper end, the resistance of two sensor terminal will be greater than 200K Ω, and the indication in instrument will light.When liquid level is higher than two sensor side period of the day from 11 p.m. to 1 a.m, sensor is not reported to the police.Sensor utilization be that metal electronic conduction non-conductive principle in air in liquid is made.
Traditional inductor terminal generally adopts after copper coin punching press, first plate 2-3 μ m nickel, plate again 2-4 μ m silver, be shaped as flat, induction terminal is generally to embed in mould then to carry out injection moulding, and the induction terminal of flat there will be seepage after water tank long-term work, affect the normal work of water tank and induction terminal.And owing to containing element sulphur in Chinese water quality, can make silver-colored oxidized formation silver sulfide form insulation course in induction terminal outside, make this induction terminal there will be wrong report after use one end time.
Summary of the invention
The utility model, for prior art deficiency, provides a kind of automobile washer liquid level sensing device, and this liquid level sensing device is installed firmly, can prevent from, after long-term use, liquid level sensing device place seepage is installed, and there will not be wrong report.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of automobile washer liquid level sensing device, comprise washing tank, in described washing tank, be provided with two highly different sensor terminal, described sensor terminal is connected with Displaying Meter and forms loop, described sensor terminal one end is flat inserted sheet, and the other end is cylindrical conductive rod, and described cylindrical conductive rod place is provided with ring groove.The flat inserted sheet in one end is connected with circuit for sensor terminal, the other end is the contact area of cylindrical conductive rod for increasing sensor terminal and water, make electric conductivity better, ring groove is set in sensor terminal can increase the firmness between sensor terminal and ring groove, prevents the injection moulding place generation gap of sensor terminal and washing tank and makes cleaning fluid seepage.
In technique scheme, preferred, described cylindrical conductive rod place is provided with two described ring grooves, arrange two ring grooves make sensor terminal and washing tank injection moulding more firm.
The utility model compared with prior art, has following beneficial effect: this liquid level sensing device of the utility model is installed firmly, can prevent from, after long-term use, liquid level sensing device place seepage is installed, and there will not be wrong report.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment principle schematic.
Fig. 2 is the structural representation of sensor terminal in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail: referring to Fig. 1 to Fig. 2, a kind of automobile washer liquid level sensing device, comprise washing tank 1, in described washing tank 1, be provided with two highly different sensor terminal 2, a sensor terminal 2 is connected with Displaying Meter 3, described Displaying Meter 3 is connected with power supply 4, another sensor terminal 2 ground connection, form loop, described sensor terminal 2 one end are flat inserted sheet 21, the other end is cylindrical conductive rod, described cylindrical conductive rod place is provided with ring groove 22, described cylindrical conductive rod place is provided with two ring grooves 22.
When water level during higher than two sense terminal 2 Displaying Meter 3 do not show washing tank lack of water, when water level during lower than a sense terminal 2 wherein circuit obstructed, Displaying Meter 3 shows washing tank lack of water, traditional sensor terminal 2 is for first plating 2-3 μ m nickel in GuZn30Y350 outside, plate again 2-4 μ m silver to increase its electric conductivity, and owing to containing sulphur in water, can be at silver layer outer side covers one deck silver sulfide after long-term use, make electric conductivity variation, cause the wrong washing tank lack of water that shows of Displaying Meter 3, the utility model changes sensor terminal material into stainless steel, be not easy with water in element reaction, prevent that Displaying Meter 3 from reporting by mistake.
Claims (2)
1. an automobile washer liquid level sensing device, comprise washing tank (1), in described washing tank (1), be provided with two highly different sensor terminal (2), described sensor terminal (2) is connected with Displaying Meter (3) and forms loop, it is characterized in that: described sensor terminal (2) one end is flat inserted sheet (21), the other end is cylindrical conductive rod, and described cylindrical conductive rod place is provided with ring groove (22).
2. a kind of automobile washer liquid level sensing device as claimed in claim 1, is characterized in that: described cylindrical conductive rod place is provided with two described ring grooves (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757162.0U CN203629631U (en) | 2013-11-27 | 2013-11-27 | Liquid level sensing device for automobile washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757162.0U CN203629631U (en) | 2013-11-27 | 2013-11-27 | Liquid level sensing device for automobile washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629631U true CN203629631U (en) | 2014-06-04 |
Family
ID=50816097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757162.0U Expired - Fee Related CN203629631U (en) | 2013-11-27 | 2013-11-27 | Liquid level sensing device for automobile washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289447A (en) * | 2016-10-26 | 2017-01-04 | 恒勃控股股份有限公司 | Vehicle expansion tank liquid level sensor |
-
2013
- 2013-11-27 CN CN201320757162.0U patent/CN203629631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289447A (en) * | 2016-10-26 | 2017-01-04 | 恒勃控股股份有限公司 | Vehicle expansion tank liquid level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315000 No. 1266 Juxian Road, Ningbo High-tech Zone, Zhejiang Province Patentee after: NINGBO JUNSHENG QUNYING AUTOMOBILE SYSTEM Co.,Ltd. Address before: 315040 No. 1266, Ju Xian Road, national hi tech Zone, Ningbo, Zhejiang Patentee before: NINGBO JOYSON AUTOMOBILE ELECTRONICS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 |