CN202393452U - Water level sensor - Google Patents
Water level sensor Download PDFInfo
- Publication number
- CN202393452U CN202393452U CN2011204472412U CN201120447241U CN202393452U CN 202393452 U CN202393452 U CN 202393452U CN 2011204472412 U CN2011204472412 U CN 2011204472412U CN 201120447241 U CN201120447241 U CN 201120447241U CN 202393452 U CN202393452 U CN 202393452U
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- contact
- plug
- mandrel
- level sensor
- plug screw
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- Expired - Fee Related
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Abstract
The utility model discloses a water level sensor, which belongs to the technical field of liquid level sensors and is mainly used for solving the problems of scaling and rusting of a sensor electrode caused by electrolysis and electroplating problems existing in the conventional sensor. The water level sensor is mainly characterized by comprising an O-shaped sealing ring, a plug screw and a mandrel, wherein an injection-molded body formed through injection molding is arranged between the plug screw and the mandrel; the end art of the mandrel is provided with a contact made of an anti-oxidation corrosion-resistant material such as a TC6 material; the end part of the mandrel is provided with a circular hole; the contact is in interference fit with the mandrel; and a colloid is arranged at a contact position between the plug screw and the contact. The water level sensor has the characteristics of accurate alarming, high reliability, long service life and freeness from maintaining, and is mainly used for measuring the liquid level of an anti-freezing fluid in an auxiliary water tank of an automobile.
Description
Technical field
The utility model belongs to the liquid level sensor technical field.Be specifically related to a kind of level sensor that is used for the secondary antifreezing fluid for water tank liquid level of measured automobiles.
Background technology
Water-level alarm or sensor mainly are used for the anti freezing solution liquid level of the secondary water tank of measured automobiles.When the anti freezing solution liquid level is reduced to alarm bit when following, sensor sends alerting signal through instrument or VECU.The actuating medium of water-level alarm or sensor is mainly motor vehicle antifreeze fluid, and long-term operating temperature range is at 80 ℃-90 ℃.Mounting means is generally the bottom of the secondary water tank of automobile and installs.Europe three dischargings and (waste gas recovery) arrival of refrigeratory have driven the demand of novel ECL sensor.Owing to during working sensor, be to connect direct supply, it has been distinguished through the resistance of two electrodes in secondary water tank in anti freezing solution or has not been had anti freezing solution.Some substantial problem like this, for example electrolysis, plating and discrete electric current are insurmountable always.These factors have caused the fouling of sensor electrode and have got rusty, the secondary water tank that especially designs for those long-lives.
Summary of the invention
The purpose of the utility model is exactly to provide a kind of can avoid sensor electrode electrolysis, plating problem and cause sensor electrode fouling and the level sensor that gets rusty to above-mentioned weak point.
The technical solution of the utility model is: a kind of level sensor, comprise O RunddichtringO, plug screw, plug, and it is characterized in that: between plug screw and plug, be provided with the injection molding body that constitutes through injection moulding; Be provided with the contact that employing is anti-oxidant, resistant material is processed in the plug end.
Plug end described in the technical solution of the utility model is provided with circular hole, and contact is that interference fit is connected with plug, and the contact site of plug screw and contact is provided with colloid.
Contact described in the technical solution of the utility model is the contact that adopts the TC6 material to process.
O RunddichtringO described in the technical solution of the utility model adopts to press and is installed in the edge that plug screw contacts with injection molding body.
The utility model is owing to adopt the level sensor that is made up of O RunddichtringO, plug screw, plug, injection molding body and contact, and wherein, injection molding body is arranged between plug screw and the plug; Contact is processed by anti-oxidant, resistant material, and contact and plug constitute the plug assembly, and plug assembly and plug screw are injection molded into the movement assembly; Thereby, the utility model level sensor is loaded on the secondary water tank bottom of automobile after, plug screw communicates with vehicle body; Be equivalent to ground connection, plug assembly rear portion directly connects power supply and instrument, the magnitude of voltage that leans on changes in resistance output to change; Resistance according to the different electrodes of anti-freezing liquid level is also just different; Thereby cause the output of high electronegative potential, can satisfy the requirement of instrument and ECU, realize sending or reporting to the police of signal when the anti freezing solution liquid level is lower than set position.The utility model has overcome the electrolysis that direct current transducer exists always, plating problem, have report to the police accurately, reliability is high, long service life and non-maintaining characteristics, is a kind of novel level sensor that meets Europe trimotor standard.The utility model is mainly used in the anti freezing solution liquid level of the secondary water tank of measured automobiles.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the movement assembly synoptic diagram of the utility model.
Fig. 3 is the utility model plug assembly synoptic diagram.
Embodiment
As shown in Figure 1.The utility model level sensor is made up of O RunddichtringO 1, plug screw 2, plug 4, injection molding body 3 and contact 6.The terminal of plug 4 directly is connected with connector, is easy for installation and removal.Contact 6 long period of soaking will be considered anti-oxidantly, corrosion-resistant when selecting material in anti freezing solution, and contact 6 adopts the TC6 materials to process.The movement assembly of forming by plug screw 2, injection molding body 3, plug 4, contact 6 and colloid 5; Between plug screw 2 and injection molding body 3, O RunddichtringO 1 is housed, plug screw 2 edges adopt and press, after injection moulding is accomplished; The local gluing 5 that contacts with injection molding body 3 at the plug assembly is with the leakage of avoiding capillarity to cause.Sensor is oppositely installed, and needs to consider sealing, increases the O RunddichtringO between sensor and the water tank.The material of O RunddichtringO and size are too with reference to the design of Dci11 level sensor.Water proofing property between electrode and the working of plastics also is that emphasis will be considered, the movement assembly adopts plastic injection-moulded the processing of PA66 30%GF, uses the top encapsulating after the injection moulding.
As shown in Figure 2.By the movement assembly that plug screw 2, injection molding body 3, plug 4 and contact 6 are formed, essence is the assembly that is made up of through injection moulding plug assembly and plug screw 2, and the movement assembly is the critical piece of the utility model, has determined its performance.
As shown in Figure 3.The plug assembly of plug 4 and contact 6 compositions, punching of plug 4 tops and contact 6 interference fit guarantee that contact is good between the two, contact resistance is littler.
Claims (3)
1. a level sensor comprises O RunddichtringO (1), plug screw (2), plug (4), it is characterized in that: between plug screw (2) and plug (4), be provided with the injection molding body (3) that constitutes through injection moulding; Be provided with the contact (6) that employing is anti-oxidant, resistant material is processed in plug (4) end.
2. level sensor according to claim 1 is characterized in that: described plug (4) end is provided with circular hole, and contact (6) is that interference fit is connected with plug (4), and the contact site of injection molding body (3) and contact (6) is provided with colloid (5).
3. level sensor according to claim 1 and 2 is characterized in that: described O RunddichtringO (1) adopts to press and is installed in the edge that plug screw (2) contacts with injection molding body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204472412U CN202393452U (en) | 2011-11-14 | 2011-11-14 | Water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204472412U CN202393452U (en) | 2011-11-14 | 2011-11-14 | Water level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393452U true CN202393452U (en) | 2012-08-22 |
Family
ID=46668368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204472412U Expired - Fee Related CN202393452U (en) | 2011-11-14 | 2011-11-14 | Water level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393452U (en) |
-
2011
- 2011-11-14 CN CN2011204472412U patent/CN202393452U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Free format text: FORMER NAME: DONGFENG XIANGFAN INSTRUMENT SYSTEMS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 441001 No. 227 East Daqing Road, Hubei, Xiangyang Patentee after: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Address before: 441001 No. 227 East Daqing Road, Hubei, Xiangfan Patentee before: Dongfeng Xiangfan Instrument Systems 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: 20120822 Termination date: 20161114 |