CN103174551A - Built-in coil structure of motor-driven exhaust gas recirculation (EGR) valve of gasoline engine - Google Patents
Built-in coil structure of motor-driven exhaust gas recirculation (EGR) valve of gasoline engine Download PDFInfo
- Publication number
- CN103174551A CN103174551A CN2013101066764A CN201310106676A CN103174551A CN 103174551 A CN103174551 A CN 103174551A CN 2013101066764 A CN2013101066764 A CN 2013101066764A CN 201310106676 A CN201310106676 A CN 201310106676A CN 103174551 A CN103174551 A CN 103174551A
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- Prior art keywords
- coil
- egr valve
- motor
- built
- copper wire
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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
- Y02T10/12—Improving ICE efficiencies
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a built-in coil structure of a motor-driven exhaust gas recirculation (EGR) valve of a gasoline engine. The built-in coil structure comprises a coil framework, a copper wire is wound on the coil framework, the end portion of the copper wire is welded on a coil inserting piece, coil outer seal is arranged on the inner wall of an outer shell of a motor-driven EGR valve, the bottom end of the coil outer seal is fixedly connected with the bottom end of the coil framework, and the top end of the coil outer seal is connected with a displacement sensor in an ejecting mode. A groove which is used for installing the coil inserting piece in a clamped mode is formed in the inner wall of the coil outer seal. The built-in coil structure is simple in structure. The coil framework of the motor-driven EGR valve, the copper wire wound on the coil framework and welding points of the copper wire and the coil inserting piece are sealed by the coil outer seal, so that the built-in coil structure not only effectively prevents water and oil from eroding, but also can effectively prevent the coil inserting piece and the copper wire from being not welded firmly due to vibration of an engine, greatly improves reliability of the motor-driven EGR valve, and thus effectively ensures good operation of a whole system.
Description
Technical field
The present invention relates to a kind of loop construction, particularly a kind of loop construction for the petrol engine electric EGR valve.
Background technique
The basic principle of EGR is that air inlet is introduced in the part exhaust, to improve combustion performance, reduces formation and the discharge amount of NOx in engine exhaust, reduces exhaust pollution.Electric EGR valve is one and is arranged on the electromechanical integrated product that is used for controlling the amount of exhaust gas recirculation that feeds back to gas handling system on the petrol engine motor, and the internal coil in electric EGR valve is exactly control the vitals of electric EGR valve aperture and be connected with the electric EGR valve displacement transducer.The internal coil of electric EGR valve is arranged on electric EGR valve inside, because electric EGR valve will be worked under rugged environment for a long time, copper cash in the electric EGR valve internal coil can be subject to all the time the erosion of water and oil and corrode, thereby makes electric EGR valve ineffective in whole system; And electric EGR valve internal coil copper wire welding is to EGR valve coil inserted sheet, be connected with contact pin on the electric EGR valve displacement transducer again, because electric EGR valve is arranged on motor, motor is in vibrational state always, the electric EGR valve internal coil is in vibrational state too, the copper wire welding place easily comes off, ruptures, thereby makes electric EGR valve ineffective in whole system.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of internal coil structure of petrol engine electric EGR valve, have waterproof, oil-resistant function, can also avoid causing because of engine luggine the generation of copper cash and coil inserted sheet phenomenon of rupture, for the reliability of electric EGR valve provides guarantee.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
The internal coil structure of petrol engine electric EGR valve, comprise the coil rack that is arranged in the electric EGR valve shell, be wound with copper cash on coil rack, the end of described copper cash is welded on the coil inserted sheet, be provided with the coil outer encapsulating on the outer casing inner wall of described electric EGR valve, the bottom of described coil outer encapsulating is fixedly connected with the bottom of coil rack, the displacement transducer apical grafting of the top of coil outer encapsulating and electric EGR valve; Also be provided with the groove that clamps the coil inserted sheet on the inwall of described coil outer encapsulating.
Owing to having adopted above technological scheme, the invention technological progress is as follows.
The present invention is simple in structure, by be arranged on coil outer encapsulating on outer casing inner wall with the coil rack of electric EGR valve, be wound on copper cash on coil rack and the solder joint of copper cash and coil inserted sheet is encapsulated, thereby the whole internal coil that makes electric EGR valve all is encapsulated in outer encapsulating, has effectively prevented the erosion of water, oil; The coil inserted sheet that is welded with the copper cash joint is installed in the groove of outer encapsulating, can effectively prevent from causing because of engine luggine the not generation of firm phenomenon of coil inserted sheet and copper wire welding, greatly improve the reliability of electric EGR valve, thereby effectively guaranteed the good operation of whole system.
Description of drawings
Fig. 1 is the partial sectional view of electric EGR valve of the present invention.
Wherein: 1, electric EGR valve, 2, displacement transducer, 2-1, contact pin, 3, internal coil, 3-1, coil rack, 3-2, coil inserted sheet, 3-3, coil outer encapsulating.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further elaborated.
A kind of its structure of petrol engine electric EGR valve as shown in Figure 1.Its internal coil 3 comprises coil rack 3-1, copper cash, coil inserted sheet 3-2 and coil outer encapsulating 3-3, and coil rack 3-1 is arranged in the shell of electric EGR valve, and the copper cash wire-wound is on ring framework 3-1, and the two ends of copper cash are welded on coil inserted sheet 3-2; The coil inserted sheet is connected with the contact pin 2-1 of displacement transducer.
Coil outer encapsulating 3-3 is arranged on the outer casing inner wall of electric EGR valve, and the bottom of coil outer encapsulating 3-3 is fixedly connected with the bottom of coil rack 3-1, displacement transducer 2 apical graftings of the top of coil outer encapsulating 3-3 and electric EGR valve.
Also be provided with groove on the inwall of coil outer encapsulating, be used for clamping coil inserted sheet 3-2, the solder joint of copper cash and coil inserted sheet is installed in groove, prevent from rupturing because engine luggine makes coil inserted sheet and copper cash, cause the damage of electric EGR valve.
Claims (1)
1. the internal coil structure of a petrol engine electric EGR valve, comprise the coil rack (3-1) that is arranged in the electric EGR valve shell, be wound with copper cash on coil rack (3-1), the end of described copper cash is welded on coil inserted sheet (3-2), it is characterized in that: be provided with coil outer encapsulating (3-3) on the outer casing inner wall of described electric EGR valve, the bottom of described coil outer encapsulating (3-3) is fixedly connected with the bottom of coil rack (3-1), the top of coil outer encapsulating (3-3) and the displacement transducer apical grafting of electric EGR valve; Also be provided with the groove that clamps coil inserted sheet (3-2) on the inwall of described coil outer encapsulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101066764A CN103174551A (en) | 2013-03-28 | 2013-03-28 | Built-in coil structure of motor-driven exhaust gas recirculation (EGR) valve of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101066764A CN103174551A (en) | 2013-03-28 | 2013-03-28 | Built-in coil structure of motor-driven exhaust gas recirculation (EGR) valve of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174551A true CN103174551A (en) | 2013-06-26 |
Family
ID=48634659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101066764A Pending CN103174551A (en) | 2013-03-28 | 2013-03-28 | Built-in coil structure of motor-driven exhaust gas recirculation (EGR) valve of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174551A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627313Y (en) * | 2003-06-27 | 2004-07-21 | 黄显华 | Rectilinear motor-driven exhaust gas recirculation valve |
| CN2720133Y (en) * | 2004-09-01 | 2005-08-24 | 上海绍博车辆动力装置科技有限公司 | Engine-electric-control EGR valve of belt-position sensor driven by proportional electromagnet |
| CN102261508A (en) * | 2010-05-27 | 2011-11-30 | 浙江三花股份有限公司 | Electromagnetic valve |
| CN102782378A (en) * | 2010-02-26 | 2012-11-14 | 谢夫勒科技股份两合公司 | Electromagnetic hydraulic valve |
| CN102979943A (en) * | 2012-12-04 | 2013-03-20 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electromagnetic valve and manufacturing method thereof |
| CN203146146U (en) * | 2013-03-28 | 2013-08-21 | 无锡隆盛科技股份有限公司 | Built-in coil structure of gasoline engine electric EGR valve |
-
2013
- 2013-03-28 CN CN2013101066764A patent/CN103174551A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627313Y (en) * | 2003-06-27 | 2004-07-21 | 黄显华 | Rectilinear motor-driven exhaust gas recirculation valve |
| CN2720133Y (en) * | 2004-09-01 | 2005-08-24 | 上海绍博车辆动力装置科技有限公司 | Engine-electric-control EGR valve of belt-position sensor driven by proportional electromagnet |
| CN102782378A (en) * | 2010-02-26 | 2012-11-14 | 谢夫勒科技股份两合公司 | Electromagnetic hydraulic valve |
| CN102261508A (en) * | 2010-05-27 | 2011-11-30 | 浙江三花股份有限公司 | Electromagnetic valve |
| CN102979943A (en) * | 2012-12-04 | 2013-03-20 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electromagnetic valve and manufacturing method thereof |
| CN203146146U (en) * | 2013-03-28 | 2013-08-21 | 无锡隆盛科技股份有限公司 | Built-in coil structure of gasoline engine electric EGR valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |