CN203081544U - Urea liquid level sensor assembly - Google Patents
Urea liquid level sensor assembly Download PDFInfo
- Publication number
- CN203081544U CN203081544U CN2013200678307U CN201320067830U CN203081544U CN 203081544 U CN203081544 U CN 203081544U CN 2013200678307 U CN2013200678307 U CN 2013200678307U CN 201320067830 U CN201320067830 U CN 201320067830U CN 203081544 U CN203081544 U CN 203081544U
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- China
- Prior art keywords
- level sensor
- urea
- liquid level
- wall
- heating
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a urea liquid level sensor assembly. The urea liquid level sensor assembly comprises a liquid level sensor, wherein the outer side of the liquid level sensor is surrounded by a heating body, the heating body is internally provided with a urea conveying pipe and a temperature sensor, and a liquid level floater is sleeved outside the liquid level sensor; and the heating body comprises an inner wall, an outer wall, heating wires uniformly surrounded between the inner wall and the outer wall and a fixed padding filled among the inner side, the outer wall and the heating wire. Urea in a urea box is heated in a mode of electric heating of a heating body, the heating efficiency is high, the structure is simple, the installation is convenient, and a problem that the arrangement space of a cooling water pipeline is constrained in the prior art.
Description
Technical field
The utility model relates to a kind of urea level sensor unit, belongs to technical field of automobile parts.
Background technique
At present, diesel engine generally realizes by SCR (selective catalytic reduction) after-treatment system for reaching state's four emission levels.Under the effect of the catalyzer that adheres on the carrier, the Main Ingredients and Appearance NH in the urea
3NO and NO in the reduction waste gas
2Generate N
2, to reach the reduction emission level.
And at present automobile-used 32.5% urea liquid, when solution temperature was lower than-11 ℃, urea can crystallization become solid, therefore, will be heated to liquid state to urea when low temperature.Mode of heating is integrated heating pipe on sensor, and engine cooling water circulates in the integrated heating pipe of sensor urea is heated, and melts to liquid until it.The drawback of this heating arrangement is cause very burden can for the layout of car load, can be subjected to all multifactor restrictions such as position and space.In addition, the efficiency of heating surface of sensor can be subjected to the restriction of engine condition.After the long-time placement of vehicle, engine coolant temperature can be very low, needs very long hot machine of a period of time, just can't heat during this period urea, finally cause discharging to exceed standard, this problem is particularly outstanding in the time of in the winter time, existing in prior technology deficiency that Here it is.
Summary of the invention
The technical problems to be solved in the utility model is exactly at the existing in prior technology deficiency, and provides a kind of easy for installation, and the high urea level sensor unit of the efficiency of heating surface.
This programme is realized by following technical measures: this urea level sensor unit comprises liquid level sensor, described liquid level sensor outer ring is wound with heating unit, also be provided with urea delivery pipe and temperature transducer in the heating unit, the liquid level sensor outside is set with the liquid level float; Described heating unit comprises that inwall, outer wall, uniform ring are around in the heater wire between inwall and the outer wall and are filled in fixedly filler between inwall, outer wall and the heater wire.
Above-mentioned liquid level sensor is provided with and its connector assembly that links to each other with temperature transducer with the heating unit upper end, and connector assembly links to each other with the DCU ECU (Electrical Control Unit) by lead, and the DCU ECU (Electrical Control Unit) is controlled the work of heating unit according to the urea temperature information of temperature transducer feedback.
Above-mentioned heating unit is a cylindrical shape, and this shape can increase the area of contact of urea and heating unit.
Above-mentioned inner and outer wall is a stainless steel, and its corrosion resistance is strong, and the life-span is long.
Above-mentioned heater wire comprises the high temperature insulation skin that resistive conductor and its outside coat.
The said fixing filler is a magnesium oxide, and magnesium oxide can not only play the fixedly effect of heater wire, and its good heat conductivity, can conduct the energy of heater wire timely and effectively.
The outlet end of above-mentioned urea delivery pipe is provided with the urea filter.
The beneficial effect of this programme can be learnt according to the narration to such scheme, in this urea level sensor unit, by the electrically heated mode of heating unit the urea in the urea box is heated, its efficiency of heating surface height, and it is simple in structure, easy for installation, effectively avoided the problem of cooling water pipeline arrangement space anxiety in the prior art.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is an A-A sectional structure schematic representation among Fig. 1.
Fig. 3 is the structural representation of heating unit.
Among the figure, 1 is connector assembly, and 2 is heating unit, and 3 is liquid level sensor, and 4 is the liquid level float, and 5 is the urea delivery pipe, and 6 is temperature transducer, and 7 is the urea filter, and 8 is inwall, and 9 is heater wire, and 10 is outer wall, and 11 are fixing filler.
Embodiment
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by embodiment.
A kind of urea level sensor unit, as shown in Figure 1-Figure 3, it comprises liquid level sensor 3, and liquid level sensor 3 outer rings are wound with columnar heating unit 2, also be provided with urea delivery pipe 5 and temperature transducer 6 in the heating unit 2, liquid level sensor 3 outsides are set with liquid level float 4.Described heating unit 2 comprises that inwall 8, outer wall 10, uniform ring are around in the heater wire 9 between inwall 8 and the outer wall 10 and are filled in fixedly filler 11 between inwall 8, outer wall 10 and the heater wire 9, wherein, inwall 8 and outer wall 10 are stainless steel, heater wire 9 comprises the high temperature insulation skin that resistive conductor and its outside coat, and fixedly filler 11 adopts magnesium oxide.
Liquid level sensor 3 is provided with and its connector assembly 1 that links to each other with temperature transducer 6 with heating unit 2 upper ends, and connector assembly 1 links to each other with the DCU ECU (Electrical Control Unit) by lead, and the outlet end of urea delivery pipe 5 is provided with urea filter 7.
Temperature transducer 6 feeds back to the DCU ECU (Electrical Control Unit) with the temperature information of urea in real time, and the DCU ECU (Electrical Control Unit) decides the working condition of heating unit 2 according to the temperature information of temperature transducer 6 feedbacks.When temperature was too low, urea crystals can influence the transformation efficiency of nitrogen oxide, and at this moment, the DCU ECU (Electrical Control Unit) connects power supply will for heating unit 2, makes heating unit 2 work, and urea is heated.In heating process, the urea of urea box inside can be heated and be transformed into liquid state prior to the urea at other positions, so that provide the urea of necessary liquefaction shape to after-treatment system, and for system's proper functioning.After the urea temperature in the urea box was elevated to setting value, DCU ECU (Electrical Control Unit) control heating unit 2 stopped heating.
Can pass through existing techniques in realizing without the technical characteristics of describing in the utility model, not repeat them here.
Claims (7)
1. urea level sensor unit, it comprises liquid level sensor, it is characterized in that: described liquid level sensor outer ring is wound with heating unit, also is provided with urea delivery pipe and temperature transducer in the heating unit, and the liquid level sensor outside is set with the liquid level float; Described heating unit comprises that inwall, outer wall, uniform ring are around in the heater wire between inwall and the outer wall and are filled in fixedly filler between inwall, outer wall and the heater wire.
2. urea level sensor unit according to claim 1 is characterized in that: described liquid level sensor is provided with and its connector assembly that links to each other with temperature transducer with the heating unit upper end, and connector assembly links to each other with the DCU ECU (Electrical Control Unit) by lead.
3. urea level sensor unit according to claim 1 is characterized in that: described heating unit is a cylindrical shape.
4. urea level sensor unit according to claim 1 and 2 is characterized in that: described inner and outer wall is a stainless steel.
5. urea level sensor unit according to claim 4 is characterized in that: described heater wire comprises the high temperature insulation skin that resistive conductor and its outside coat.
6. urea level sensor unit according to claim 5 is characterized in that: described fixedly filler is a magnesium oxide.
7. urea level sensor unit according to claim 1 and 2 is characterized in that: the outlet end of described urea delivery pipe is provided with the urea filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200678307U CN203081544U (en) | 2013-02-06 | 2013-02-06 | Urea liquid level sensor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200678307U CN203081544U (en) | 2013-02-06 | 2013-02-06 | Urea liquid level sensor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081544U true CN203081544U (en) | 2013-07-24 |
Family
ID=48827389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200678307U Expired - Fee Related CN203081544U (en) | 2013-02-06 | 2013-02-06 | Urea liquid level sensor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081544U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971698A (en) * | 2016-06-27 | 2016-09-28 | 湖北铱派电子科技股份有限公司 | Automatic temperature control electric heating urea liquid level sensor |
| CN108071453A (en) * | 2016-11-14 | 2018-05-25 | 埃贝斯佩歇排气技术有限责任两合公司 | Reactant discharges arrangement system |
| CN111412046A (en) * | 2020-04-13 | 2020-07-14 | 吴均宇 | Electrical heating formula urea level sensor |
| IT201900010686A1 (en) * | 2019-07-02 | 2021-01-02 | Marelli Europe Spa | INTEGRATED MODULE FOR THE CONTROL AND MANAGEMENT OF LIQUIDS ON BOARD THE VEHICLE AND RELATED POWER GROUP FOR THE CONTROL, MANAGEMENT AND FEEDING OF LIQUIDS ON BOARD THE VEHICLE |
-
2013
- 2013-02-06 CN CN2013200678307U patent/CN203081544U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971698A (en) * | 2016-06-27 | 2016-09-28 | 湖北铱派电子科技股份有限公司 | Automatic temperature control electric heating urea liquid level sensor |
| CN108071453A (en) * | 2016-11-14 | 2018-05-25 | 埃贝斯佩歇排气技术有限责任两合公司 | Reactant discharges arrangement system |
| CN108071453B (en) * | 2016-11-14 | 2020-10-09 | 埃贝斯佩歇排气技术有限责任两合公司 | Reactant release arrangement |
| IT201900010686A1 (en) * | 2019-07-02 | 2021-01-02 | Marelli Europe Spa | INTEGRATED MODULE FOR THE CONTROL AND MANAGEMENT OF LIQUIDS ON BOARD THE VEHICLE AND RELATED POWER GROUP FOR THE CONTROL, MANAGEMENT AND FEEDING OF LIQUIDS ON BOARD THE VEHICLE |
| CN111412046A (en) * | 2020-04-13 | 2020-07-14 | 吴均宇 | Electrical heating formula urea level sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20150206 |
|
| EXPY | Termination of patent right or utility model |