CN103887914A - Electric EGR valve motor protecting structure - Google Patents
Electric EGR valve motor protecting structure Download PDFInfo
- Publication number
- CN103887914A CN103887914A CN201410155962.4A CN201410155962A CN103887914A CN 103887914 A CN103887914 A CN 103887914A CN 201410155962 A CN201410155962 A CN 201410155962A CN 103887914 A CN103887914 A CN 103887914A
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- Prior art keywords
- motor
- egr valve
- rear cover
- electric
- protecting structure
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Abstract
The invention discloses an electric EGR valve motor protecting structure which comprises a motor rear cover assembled on a motor. An annular plane boss is arranged on the contact face of the motor rear cover and the motor and around a motor shaft and formed by the motor rear cover through one-time pulling and stamping. The electric EGR valve motor protecting structure is simple in structure and low in cost, effectively improves the EGR valve working reliability on the basis that the motor working stability is improved and prolongs the service life of an EGR valve.
Description
Technical field
The present invention relates to technical field of motors, particularly the electric motor protecting structure of electric EGR valve in a kind of engine exhaust emission gas recirculation system.
Background technology
EGR valve is as the effect of playing the executive component that regulates EGR gas flow in engine exhaust-gas recirculating system (egr system).At the electric EGR valve of use, generally need rotatablely moving of motor to be converted into the rectilinear motion of valve switch at present, in the conversion process of the two motion, the stability of motor plays a part crucial.
Existing EGR valve, generally that motor is inserted in two pin holes of motor housing by two contact pins of both positive and negative polarity, and motor gear is meshed with three transition gears, then three transition gears are meshed with the reduction gearing in reduction box, in such assembling situation, motor leads to after direct current, power is transferred to transition gear by motor, then after reduction gearing is slowed down, rotatablely moving of motor is transferred out.
Electric EGR valve is in assembling process, and motor need to be equipped with motor rear cover motor is protected, and adopts at present face and the face way of contact as shown in Figure 1 between motor rear cover and motor, and this just makes between motor rear cover and motor is very stiff and demanding contact.Due to this power transmission principle of electric EGR valve; bindiny mechanism is many; in real productive experiment, can often occur that power transmission wild effect, particularly valve often can cause because motor rear cover is loosening the phenomenon of the fracture of motor contact pin, the fracture of transducer contact pin, transition gear serious wear and the stuck inefficacy of valve to occur in the time of vibration experiment.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of electric motor protecting structure being applied in electric EGR valve be provided, improve machine operation stability and on basis, ensure that electric EGR valve can not cause because of electrical fault Problem of Failure.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
Electric EGR valve electric motor protecting structure, comprises the motor rear cover being assemblied on motor, and the contact-making surface pressed on ring motor crankshaft of described motor rear cover and motor is provided with planar annular boss.
Improvement of the present invention is: described planar annular boss is by the punch forming of motor rear cover one-off drawing.
Owing to having adopted above technical scheme, the invention technological progress is as follows.
The present invention becomes muscle by motor with the plane-plane contact of motor rear cover and contacts, and has greatly strengthened the stability of machine operation, solves the various contact pin breakage problems of EGR valve power section, the useful life of having improved valve.The present invention is simple in structure, and motor rear cover only needs one-off drawing punch forming; With low cost, the part stamping out can complete without machine work, and can produce in enormous quantities.
Brief description of the drawings
Fig. 1: the assembly structure schematic diagram of the motor rear cover of conventional electric EGR valve and motor.
Fig. 2: structural representation of the present invention.
Fig. 3: be the assembly structure schematic diagram of the present invention and electric EGR valve motor.
In: 1. motor rear cover, 2. motor crankshaft, 3. planar annular boss.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
A kind of electric EGR valve electric motor protecting structure, comprises the motor rear cover 1 being assemblied on motor, and its special structure as shown in Figure 2.The contact-making surface pressed on ring motor crankshaft 2 of described motor rear cover and motor is provided with planar annular boss 3, makes contacting by traditional face contact between motor rear cover and motor change muscle contact into, plays the effect that has cushioned motor rear cover and motor crankshaft.Structure after the present invention and the assembling of electric EGR valve motor as shown in Figure 3.
Planar annular boss described in the present invention is by the punch forming of motor rear cover one-off drawing, without machining, easy to make, can be mass.
Claims (2)
1. electric EGR valve electric motor protecting structure, comprises the motor rear cover (1) being assemblied on motor, it is characterized in that: the contact-making surface pressed on ring motor crankshaft (2) of described motor rear cover and motor is provided with planar annular boss (3).
2. electric EGR valve electric motor protecting structure according to claim 1, is characterized in that: described planar annular boss is by the punch forming of motor rear cover one-off drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155962.4A CN103887914A (en) | 2014-04-17 | 2014-04-17 | Electric EGR valve motor protecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155962.4A CN103887914A (en) | 2014-04-17 | 2014-04-17 | Electric EGR valve motor protecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103887914A true CN103887914A (en) | 2014-06-25 |
Family
ID=50956669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155962.4A Pending CN103887914A (en) | 2014-04-17 | 2014-04-17 | Electric EGR valve motor protecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103887914A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030133811A1 (en) * | 2002-01-15 | 2003-07-17 | Jen-Yen Yen | Mini water pump |
| CN201639396U (en) * | 2010-03-30 | 2010-11-17 | 中山大洋电机制造有限公司 | Motor end cap assembly |
| CN201726247U (en) * | 2010-05-07 | 2011-01-26 | 深圳市天禹传动技术有限公司 | Motor assembly |
| CN102094731A (en) * | 2011-03-08 | 2011-06-15 | 无锡隆盛科技有限公司 | Power-driven EGR (exhaust gas recirculation) valve |
| CN202059260U (en) * | 2011-04-15 | 2011-11-30 | 皮尔伯格有限责任公司 | Regulating element driven by electric motor |
| CN103490546A (en) * | 2013-09-30 | 2014-01-01 | 苏州双航机电有限公司 | Electric motor with compact structure |
| CN203827097U (en) * | 2014-04-17 | 2014-09-10 | 无锡隆盛科技股份有限公司 | Electric EGR valve motor protection structure |
-
2014
- 2014-04-17 CN CN201410155962.4A patent/CN103887914A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030133811A1 (en) * | 2002-01-15 | 2003-07-17 | Jen-Yen Yen | Mini water pump |
| CN201639396U (en) * | 2010-03-30 | 2010-11-17 | 中山大洋电机制造有限公司 | Motor end cap assembly |
| CN201726247U (en) * | 2010-05-07 | 2011-01-26 | 深圳市天禹传动技术有限公司 | Motor assembly |
| CN102094731A (en) * | 2011-03-08 | 2011-06-15 | 无锡隆盛科技有限公司 | Power-driven EGR (exhaust gas recirculation) valve |
| CN202059260U (en) * | 2011-04-15 | 2011-11-30 | 皮尔伯格有限责任公司 | Regulating element driven by electric motor |
| CN103490546A (en) * | 2013-09-30 | 2014-01-01 | 苏州双航机电有限公司 | Electric motor with compact structure |
| CN203827097U (en) * | 2014-04-17 | 2014-09-10 | 无锡隆盛科技股份有限公司 | Electric EGR valve motor protection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140625 |