CN2526754Y - Electronic expansion valve for frequency change air conditioner - Google Patents
Electronic expansion valve for frequency change air conditioner Download PDFInfo
- Publication number
- CN2526754Y CN2526754Y CN 02216046 CN02216046U CN2526754Y CN 2526754 Y CN2526754 Y CN 2526754Y CN 02216046 CN02216046 CN 02216046 CN 02216046 U CN02216046 U CN 02216046U CN 2526754 Y CN2526754 Y CN 2526754Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- upper shaft
- spring
- shaft lever
- expansion valve
- Prior art date
- 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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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to an electronic expansion valve for a frequency change air conditioner, which is characterized in that a spring (8) is connected between the lower shaft rod (14) of the rotoAn electronic expansion valve for frequency change air conditioner is characterized in that a spring (8) is arranged between a lower shaft lever (14) of a rotor and a valve pinhead (10). The upper endr and a valve needle (10); the upper end of the spring (8) is contacted with a guide (7), and an upper shaft rod (4) is provided with an elastic position-limit mechanism (5). When the rotor moves up a of the spring (8) is contacted with a guide apparatus (7) and an upper shaft lever (4) is provided with an elastic limiting mechanism (5) to limit the displacement value of the rotor when moving up and down, the displacement is limited; the end portion of the upper shaft rod (4) is connected with a sliding upper bearing (17); the end portion of the upper shaft rod (4) is arranged in the sliding bnd down. The end part of the upper shaft lever (4) is connected with a sliding upper bearing (17) and is arranged in a sliding bearing hole. A stator winding (1) and a magnetic rotor (2) are separatedearing hole, and a stator winding (1) and a magnetic rotor (2) are isolated by a cylindrical liner. by a cylinder bush.
Description
Technical field: the utility model relates to the electronic expansion valve technology field, belongs to specifically by the stepper motor rotation, thus the aperture between adjusting needle and the valve opening, a kind of expansion valve of the refrigerant flow of adjusting air-conditioner.
Background technology: the electric expansion valve of existing market supply, its structure is by p-m rotor, stator winding, pole plate and needle and valve opening are formed, main instruction according to micro computer, additional drives voltage on each phase stator winding makes the stepper motor rotation, when this command signal sequence is identical, pulse signal control motor just changes, otherwise then counter-rotating, thereby regulate the aperture between needle and the valve opening, regulate the flow of cold-producing medium, but the needle of a lot of electric expansion valves is fixed on the rotor shaft, when rotor rotation, can produce and swing, make system's instability, general in addition position-limit mechanism complexity, and also spacing inaccurate, the angle of just contrary direction rotation does not wait, and produces angular error.
Summary of the invention: the purpose of this utility model provides a kind of aperture that can not only control rapidly and accurately between needle and the valve opening, can be because of the stuck valve opening of the deviation of needle, phenomenon swings in the time of simultaneously overcoming rotor rotation, and it is consistent that the angle of the just backward rotation of valve reaches, make refrigerant flow identical, and the spacing electric expansion valve of transducer air conditioning accurately.
For finishing the technical scheme that above-mentioned purpose is taked: establish spring between the rotor shaft in existing electric expansion valve and the needle and be connected, the spring upper end contacts with guider, upper shaft lever is established the elasticity position-limit mechanism, upper and lower mobile displacement when playing the restriction rotation, the upper shaft lever end is connected with the slip upper bearing (metal), the upper shaft lever end is arranged in the slip upper bearing (metal) hole, and stator winding and magnet rotor are isolated by the cylinder lining.
Rotor lower shaft of the present utility model adopts soft connection of contact with needle, and there is spring the centre, and the spring upper end is connected with the guider contact, needle can be moved in the upper and lower left and right allowed band, therefore needle can be not stuck in valve opening, and needle contacts well good leak tightness with valve opening.The upper shaft lever end is arranged in the sliding bearing in addition, and sliding bearing is fixed on cylinder lining top, and when rotor rotation, upper shaft lever is can be in sliding bearing upper and lower to be moved, and vacillates now to the left, now to the right when therefore overcoming rotor rotation again and shakes.
Description of drawings:
Fig. 1 is the utility model structure chart.
The specific embodiment: according to shown in Figure 1, valve body 6 is established the reversible interface 15,16 of valve body, axostylus axostyle 14 is established slip lower bearing 17 and the outer rib-loop 13 of following axostylus axostyle, rotor upper shaft lever 4, p-m rotor 2 and stator winding 1 composition under the rotor, establishing spring 8 between axostylus axostyle 14 and the needle 10 under its feature rotor is connected, needle 10 is aimed at valve opening 11, spring 8 upper ends contact with guider 7, upper shaft lever 4 is established elasticity position-limit mechanism 5, the upper and lower mobile displacement of restrict rotor, upper shaft lever 4 ends are arranged in slip upper bearing (metal) 9 holes, and stator winding 1 is isolated by cylinder lining 3 with magnet rotor 2.
Claims (1)
1, a kind of by axostylus axostyle under the rotor, the outer rib-loop of following axostylus axostyle, rib-loop in the valve body, the slip lower bearing, p-m rotor, stator winding, the reversible interface of valve body, valve body, the transducer air conditioning electric expansion valve that the rotor upper shaft lever is formed, it is characterized in that establishing spring (8) between axostylus axostyle under the rotor (14) and the needle (10) is connected, spring (8) upper end contacts with guider (7), upper shaft lever (4) is established elasticity position-limit mechanism (5), on the restrict rotor, displacement when mobile down, upper shaft lever (4) end is connected with slip upper bearing (metal) (17), upper shaft lever (4) end is arranged in the slip upper bearing (metal) (9), and stator winding (1) is isolated by the cylinder lining with magnet rotor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216046 CN2526754Y (en) | 2002-03-07 | 2002-03-07 | Electronic expansion valve for frequency change air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216046 CN2526754Y (en) | 2002-03-07 | 2002-03-07 | Electronic expansion valve for frequency change air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526754Y true CN2526754Y (en) | 2002-12-18 |
Family
ID=33695092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02216046 Expired - Fee Related CN2526754Y (en) | 2002-03-07 | 2002-03-07 | Electronic expansion valve for frequency change air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526754Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348897C (en) * | 2004-12-14 | 2007-11-14 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| WO2008031289A1 (en) * | 2006-09-07 | 2008-03-20 | Zhejiang Dunan Precision Industries Group Co., Ltd. | Electronic expansion valve for a refrigeration system |
| CN102119308A (en) * | 2008-07-15 | 2011-07-06 | 奥托.埃杰尔霍夫两合公司 | Integration of a delta-p expansion valve for COP-optimal regulation in a high-pressure connection, in particular an internal heat exchanger |
| CN102252120A (en) * | 2010-05-21 | 2011-11-23 | 浙江三花股份有限公司 | Heat exchange device, and electrically operated valve thereof |
| CN102252470A (en) * | 2011-06-02 | 2011-11-23 | 上海俊乐制冷自控元件有限公司 | Straight-way type electronic expansion valve |
| CN102287536A (en) * | 2011-07-27 | 2011-12-21 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN103353194A (en) * | 2013-07-01 | 2013-10-16 | 新奥科技发展有限公司 | Refrigerating device control system and control method |
| CN108361385A (en) * | 2017-01-26 | 2018-08-03 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| US11261974B2 (en) | 2017-01-26 | 2022-03-01 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
-
2002
- 2002-03-07 CN CN 02216046 patent/CN2526754Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348897C (en) * | 2004-12-14 | 2007-11-14 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| WO2008031289A1 (en) * | 2006-09-07 | 2008-03-20 | Zhejiang Dunan Precision Industries Group Co., Ltd. | Electronic expansion valve for a refrigeration system |
| CN102119308A (en) * | 2008-07-15 | 2011-07-06 | 奥托.埃杰尔霍夫两合公司 | Integration of a delta-p expansion valve for COP-optimal regulation in a high-pressure connection, in particular an internal heat exchanger |
| CN102252120A (en) * | 2010-05-21 | 2011-11-23 | 浙江三花股份有限公司 | Heat exchange device, and electrically operated valve thereof |
| CN102252470A (en) * | 2011-06-02 | 2011-11-23 | 上海俊乐制冷自控元件有限公司 | Straight-way type electronic expansion valve |
| CN102287536A (en) * | 2011-07-27 | 2011-12-21 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN103353194A (en) * | 2013-07-01 | 2013-10-16 | 新奥科技发展有限公司 | Refrigerating device control system and control method |
| CN103353194B (en) * | 2013-07-01 | 2016-06-08 | 新奥科技发展有限公司 | A kind of refrigeration plant controls system and control method |
| CN108361385A (en) * | 2017-01-26 | 2018-08-03 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| US11261974B2 (en) | 2017-01-26 | 2022-03-01 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |