CN103277218A - Coil structure of vacuum electromagnetic adjustor - Google Patents
Coil structure of vacuum electromagnetic adjustor Download PDFInfo
- Publication number
- CN103277218A CN103277218A CN2013102297535A CN201310229753A CN103277218A CN 103277218 A CN103277218 A CN 103277218A CN 2013102297535 A CN2013102297535 A CN 2013102297535A CN 201310229753 A CN201310229753 A CN 201310229753A CN 103277218 A CN103277218 A CN 103277218A
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- coil
- vacuum electromagnetic
- adjustor
- temperature
- coil structure
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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
Abstract
The invention discloses a coil structure of a vacuum electromagnetic adjustor. The coil structure of the vacuum electromagnetic adjustor comprises a first coil connected to two ends of a power supply, wherein a temperature compensation branch is connected in series between the first coil and the power source; and the temperature compensation branch comprises a second coil and a thermistor, which are arranged in parallel connection. The coil structure of the vacuum electromagnetic adjustor can control an attenuation amount of pressure output characteristics of the vacuum electromagnetic adjustor which is generated along with the temperature change within a relatively small range, is satisfied with requirements on normal use at different environmental temperature, and improves reliability of products.
Description
Technical field
The present invention relates to engine exhaust emission control gear technical field, particularly a kind of vacuum electromagnetic regulator.
Background technique
Vacuum electromagnetic regulator is applied in the engine exhaust-gas recirculating system (egr system), it is a kind of device that can regulate the EGR gas flow, its major function is to control the position of spool in vacuum governor by the different duty of regulating the vacuum electromagnetic regulator coil voltage, and then regulate the degree of vacuum size, realize the control of valve opening size.Dutycycle refers in a string desirable pulse interval sequence, the ratio in the endurance of positive pulse and total cycle of pulse.
The coil of traditional vacuum electromagnetic regulator adopts single coil structure more, and the resistance value of coil designs according to the normal temperature state.But because the working environment of vacuum electromagnetic regulator is comparatively abominable, the resistance value of coil can and increase along with the temperature rising in its working procedure, also can reduce along with the reduction of temperature, therefore vacuum electromagnetic regulator in the course of the work, the resistance value of coil and design load depart from bigger, when causing vacuum electromagnetic regulator in hot environment or low temperature environment, to work, deviation is bigger when the degree of vacuum size of output and normal temperature, be that the pressure output characteristics can decay along with variation of temperature, cause product performance bad, even can't proper functioning.
Summary of the invention
The technical problem that the present invention solves provides a kind of variation of ambient temperature that is subjected to influences less vacuum electromagnetic regulator loop construction, to improve reliability of products.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
The vacuum electromagnetic regulator loop construction comprises first coil that is connected both ends of power, also is connected in series with the temperature correction branch road between described first coil and the power supply, and described temperature correction branch road comprises second coil and the thermistor that is arranged in parallel.
Owing to adopted above technological scheme, the invention technological progress is as follows.
The present invention the pressure output characteristics of vacuum electromagnetic regulator is varied with temperature and the decay that produces control in small range, satisfy the normal usage requirement of varying environment temperature, improved reliability of products.
Description of drawings
Fig. 1 is structural representation of the present invention.
Wherein: 1, first coil, 2, second coil, 3, thermistor.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further elaborated.
A kind of vacuum electromagnetic regulator loop construction, as shown in Figure 1, comprise first coil 1 that is connected both ends of power, also be connected in series with the temperature correction branch road between described first coil and the power supply, the temperature correction branch road comprises second coil 2 and the thermistor 3 that is arranged in parallel.
The present invention adopts the compound mode of first coil 1, second coil 2 and thermistor 3 to form coil integral body, and coil integral body is wrapped in valve inner by injection molding way.When the present invention works under hot environment, the resistance of first coil 1 increases with the rising of temperature, the resistance of second coil 2 does not vary with temperature substantially and changes, thermistor reduces with temperature rising resistance, by this compound mode, the resistance of coil integral body variable quantity when temperature raises or reduce is very little.Big or small of the electromagnetic force of vacuum electromagnetic regulator and coil turn and electric current are directly proportional, coil turn is definite value, therefore electromagnetic force only is directly proportional with size of current, vary with temperature with regard to the electromagnetic force of having avoided vacuum electromagnetic regulator like this and change the generation of phenomenon, greatly reduce temperature variation to the influence of pressure output characteristics, guaranteed that the pressure output characteristics of product in the conformity of each temperature range, has promoted the performance of product.
Claims (1)
1. vacuum electromagnetic regulator loop construction, comprise first coil (1) that is connected both ends of power, it is characterized in that: also be connected in series with the temperature correction branch road between described first coil and the power supply, described temperature correction branch road comprises second coil (2) and the thermistor (3) that is arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102297535A CN103277218A (en) | 2013-06-08 | 2013-06-08 | Coil structure of vacuum electromagnetic adjustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102297535A CN103277218A (en) | 2013-06-08 | 2013-06-08 | Coil structure of vacuum electromagnetic adjustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103277218A true CN103277218A (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102297535A Pending CN103277218A (en) | 2013-06-08 | 2013-06-08 | Coil structure of vacuum electromagnetic adjustor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103277218A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4205563A1 (en) * | 1992-02-22 | 1993-08-26 | Pierburg Gmbh | EM coil for valves with temp. compensating resistor - has sec. winding parallel to resistor arranged on body of main coil and driven in opposite sense |
| EP0743444A1 (en) * | 1995-04-20 | 1996-11-20 | Borg-Warner Automotive, Inc. | Temperature-compensated exhaust gas recirculation system |
| US5628296A (en) * | 1996-01-16 | 1997-05-13 | Borg-Warner Automotive, Inc. | Temperature-compensated exhaust gas recirculation system |
| CN201078286Y (en) * | 2007-04-18 | 2008-06-25 | 贵州新安航空机械有限责任公司 | Vacuum regulator for automobile exhaust gas recirculating system |
| CN201444167U (en) * | 2009-04-24 | 2010-04-28 | 唐荣亮 | Temperature self-compensating device mounted on electric energy meter |
| CN203308612U (en) * | 2013-06-08 | 2013-11-27 | 无锡隆盛科技股份有限公司 | Coil structure of vacuum electromagnetic regulator |
-
2013
- 2013-06-08 CN CN2013102297535A patent/CN103277218A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4205563A1 (en) * | 1992-02-22 | 1993-08-26 | Pierburg Gmbh | EM coil for valves with temp. compensating resistor - has sec. winding parallel to resistor arranged on body of main coil and driven in opposite sense |
| EP0743444A1 (en) * | 1995-04-20 | 1996-11-20 | Borg-Warner Automotive, Inc. | Temperature-compensated exhaust gas recirculation system |
| US5628296A (en) * | 1996-01-16 | 1997-05-13 | Borg-Warner Automotive, Inc. | Temperature-compensated exhaust gas recirculation system |
| CN201078286Y (en) * | 2007-04-18 | 2008-06-25 | 贵州新安航空机械有限责任公司 | Vacuum regulator for automobile exhaust gas recirculating system |
| CN201444167U (en) * | 2009-04-24 | 2010-04-28 | 唐荣亮 | Temperature self-compensating device mounted on electric energy meter |
| CN203308612U (en) * | 2013-06-08 | 2013-11-27 | 无锡隆盛科技股份有限公司 | Coil structure of vacuum electromagnetic regulator |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| 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: 20130904 |