CN202187912U - Power steering pump of electric automobile - Google Patents
Power steering pump of electric automobile Download PDFInfo
- Publication number
- CN202187912U CN202187912U CN2011202803637U CN201120280363U CN202187912U CN 202187912 U CN202187912 U CN 202187912U CN 2011202803637 U CN2011202803637 U CN 2011202803637U CN 201120280363 U CN201120280363 U CN 201120280363U CN 202187912 U CN202187912 U CN 202187912U
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- stator
- pump
- curve
- control valve
- power steering
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model provides a power steering pump of an electric automobile, belongs to the technical field of automobiles, and solves the problems in the prior art, such as high probability of noise generation, and the like. The power steering pump comprises a pump body, a pump cover, a pump shaft, a stator, a rotor, blades, an oil distribution disc and a flow pressure control valve, wherein, the stator is arranged in a pumping chamber in the pump body; the outer outline of the stator is in a positive circular shape; as for the inner outline of the stator, a positive pre-pressing curve, a reverse pre-pressing curve and an oil pressure speed-down curve respectively account for one fifth, and an oil absorption speed-up curve accounts for two fifths; and the flow control valve is a self-operated flow control valve. The power steering pump provided by the utility model has the advantages of reasonable design and good using effect, and the noise beside the pump is effectively reduced, the turning noise in a driving room is eliminated, the service life is prolonged, and the driving comfort and safety are improved.
Description
Technical field
The utility model belongs to automobile technical field, relates to a kind of electric vehicle power assistance pump for steering.
Background technique
Along with the develop rapidly of automotive industry, people also have higher requirement to the performance of automobile hydraulic steering system to the travelling comfort of driving, the raising of security requirement.Since the outer periphery curve of stator intermediate compression chambers constant acceleration curve, etc. deceleration curve and circular arc alternately be formed by connecting, can not adapt to the working environment of steering system, be prone to produce noise.
Summary of the invention
The purpose of the utility model is the problems referred to above that exist to existing technology, and a kind of electric vehicle power assistance pump for steering is provided, and technical problem to be solved by this invention is to reduce the noise of boost pump.
The purpose of the utility model can realize through following technical proposal: a kind of electric vehicle power assistance pump for steering; Comprise the pump housing, pump cover, pump shaft, stator, rotor, blade, oil distribution casing, flow pressure control valve; It is characterized in that; Be provided with the pumping chamber in the described pump housing, described stator is arranged in this pumping chamber, and the outer contour of described stator is positive circular; The inner outline of described stator by the forward prepressing type curve of mutual symmetry, reverse prepressing type curve, press oily deceleration curve, oil suction acceleration curve to replace line to constitute; Described forward prepressing type curve account for this stator inner outline 1/5th, reverse prepressing type curve account for stator inner outline 1/5th, press oily deceleration curve account for stator inner outline 1/5th; The oil suction acceleration curve account for stator inner outline 2/5ths, described flow control valve is a self-operated flow control valve.
Compared with prior art; The utility model compares analysis through principle and the structure to existing boosting pump for car steering, thinks that influence boosting pump for car steering output fluid pulses that to cause the bigger one of the main reasons of noise be to have defective on the outer periphery curve design of pumping chamber, stator centre.Outer periphery curve through to pumping chamber in the middle of the stator is optimized design; The pressure pulse of boosting pump for car steering output fluid is reduced, and overall construction design is reasonable, and using effect is good; Reduced the other noise of pump effectively; Eliminated and driven the indoor noise that turns to, in the working life of having improved power assistance pump for steering, the travelling comfort of driving and Security have been improved.
Description of drawings
Fig. 1 is the structural representation in the pumping chamber in this electric vehicle power assistance pump for steering.
Among the figure, 1, the pumping chamber; 2, stator; 3, forward prepressing type curve; 4, reverse prepressing type curve; 5, press oily deceleration curve; 6, oil suction acceleration curve.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
As shown in Figure 1; This electric vehicle power assistance pump for steering comprises the pump housing, pump cover, pump shaft, stator 2, rotor, blade, oil distribution casing, flow pressure control valve, is provided with pumping chamber 1 in the pump housing; Stator 2 is arranged in this pumping chamber 1; The outer contour of stator 2 is positive circular, the inner outline of stator 2 by forward prepressing type curve 3, the reverse prepressing type curve 4 of mutual symmetry, press oily deceleration curve 5, oil suction acceleration curve 6 alternately line constitute, forward prepressing type curve 3 account for this stator 2 inner outline 1/5th; Reverse prepressing type curve 4 account for stator 2 inner outline 1/5th; Press oily deceleration curve 5 account for stator 2 inner outline 1/5th, oil suction acceleration curve 6 account for stator 2 inner outline 2/5ths, flow control valve is a self-operated flow control valve.The utility model compares analysis through principle and the structure to existing boosting pump for car steering, thinks that influence boosting pump for car steering output fluid pulses that to cause the bigger one of the main reasons of noise be to have defective on the outer periphery curve design of pumping chambers 1, stator 2 centre.Outer periphery curve through to pumping chamber 1 in the middle of the stator 2 is optimized design; The pressure pulse of boosting pump for car steering output fluid is reduced, and overall construction design is reasonable, and using effect is good; Reduced the other noise of pump effectively; Eliminated and driven the indoor noise that turns to, in the working life of having improved power assistance pump for steering, the travelling comfort of driving and Security have been improved.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (1)
1. electric vehicle power assistance pump for steering; Comprise the pump housing, pump cover, pump shaft, stator (2), rotor, blade, oil distribution casing, flow pressure control valve; It is characterized in that; Be provided with pumping chamber (1) in the described pump housing, described stator (2) is arranged in this pumping chamber (1), and the outer contour of described stator (2) is positive circular; The inner outline of described stator (2) by the forward prepressing type curve (3) of mutual symmetry, reverse prepressing type curve (4), press oily deceleration curve (5), oil suction acceleration curve (6) alternately line constitute; Described forward prepressing type curve (3) account for this stator (2) inner outline 1/5th, reverse prepressing type curve (4) account for stator (2) inner outline 1/5th, press oily deceleration curve (5) account for stator (2) inner outline 1/5th; Oil suction acceleration curve (6) account for stator (2) inner outline 2/5ths, described flow control valve is a self-operated flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202803637U CN202187912U (en) | 2011-08-02 | 2011-08-02 | Power steering pump of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202803637U CN202187912U (en) | 2011-08-02 | 2011-08-02 | Power steering pump of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202187912U true CN202187912U (en) | 2012-04-11 |
Family
ID=45919367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202803637U Expired - Fee Related CN202187912U (en) | 2011-08-02 | 2011-08-02 | Power steering pump of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202187912U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454514A (en) * | 2013-09-19 | 2015-03-25 | 黑拉许克联合股份有限公司 | Vane pump |
| WO2015149209A1 (en) * | 2014-03-31 | 2015-10-08 | 深圳市智优电池集成技术有限公司 | Steering motor |
| CN107241909A (en) * | 2016-01-28 | 2017-10-10 | 明和工业株式会社 | The determination method of the in-profile of the cam ring of vane pump and the composition vane pump |
-
2011
- 2011-08-02 CN CN2011202803637U patent/CN202187912U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454514A (en) * | 2013-09-19 | 2015-03-25 | 黑拉许克联合股份有限公司 | Vane pump |
| CN104454514B (en) * | 2013-09-19 | 2018-07-03 | 黑拉许克联合股份有限公司 | Vane pump |
| WO2015149209A1 (en) * | 2014-03-31 | 2015-10-08 | 深圳市智优电池集成技术有限公司 | Steering motor |
| CN106470887A (en) * | 2014-03-31 | 2017-03-01 | 深圳市智行单轴双轮驱动技术有限公司 | A kind of steer motor |
| CN106470887B (en) * | 2014-03-31 | 2018-12-18 | 深圳市智行单轴双轮驱动技术有限公司 | A kind of steering motor |
| US10173721B2 (en) | 2014-03-31 | 2019-01-08 | Shenzhen Zhixing Single-Axle Two-Wheeled Driving Technology Co., Ltd | Steering motor |
| CN107241909A (en) * | 2016-01-28 | 2017-10-10 | 明和工业株式会社 | The determination method of the in-profile of the cam ring of vane pump and the composition vane pump |
| CN107241909B (en) * | 2016-01-28 | 2019-04-12 | 明和工业株式会社 | The determination method of the in-profile of the cam ring of vane pump and the composition vane pump |
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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: 20120411 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |