CN2667261Y - Magnetic rotor structure for electronic expansion valve - Google Patents
Magnetic rotor structure for electronic expansion valve Download PDFInfo
- Publication number
- CN2667261Y CN2667261Y CN 03239057 CN03239057U CN2667261Y CN 2667261 Y CN2667261 Y CN 2667261Y CN 03239057 CN03239057 CN 03239057 CN 03239057 U CN03239057 U CN 03239057U CN 2667261 Y CN2667261 Y CN 2667261Y
- Authority
- CN
- China
- Prior art keywords
- needle
- expansion valve
- rotor structure
- support pad
- spring
- 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 - Lifetime
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a magnetic rotor structure for electronic expansion valve, which comprises the thread stem, magnet, valve needle, valve needle spring, a steel ball or mushroom hemisphere or plane support pad is arranged between the valve needle and needle spring, as point contact method is used in the utility model, which reduces friction drag between the valve needle and spring, thus has the simple and reasonable structure with small friction resistance, and can lengthen the service life and enhance movement performance for electronic expansion valve.
Description
Technical field
The utility model relates to the magnet rotor structure of a kind of electric expansion valve or similar valve body, belong to the spool rotor arrangement.
Background technique
In the prior art, the magnet rotor structure of electric expansion valve includes threaded screw rod, magnet, needle, needle spring etc.One termination portion of needle stretches in the needle chamber of screw mandrel, above overhead the needle spring is arranged.Because in actual use, because of needle spring roof pressure on needle, along with the rotation of threaded screw rod, can make the bigger frictional force of generations between needle spring and the needle, thereby minimizing working life reduce the usability of product.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and provides a kind of rational in infrastructure, can reduce the magnet rotor structure of the electric expansion valve of surface friction drag between the spring that needle is in contact with it.It includes threaded screw rod, magnet, and needle, the needle spring is equipped with a support pad between needle and the needle spring.
Described support pad is a ball pad.
Described support pad also can be a mushroom-shaped hemisphere pad.
Described support pad also can be a plane pad, and is provided with the head of circular arc at the needle top.
Above-mentioned circular arc head can be the needle cover that can be nested with at the needle top.
The utility model has reduced the surface friction drag between needle and the spring owing to adopt a some way of contact, thereby has simple and reasonable for structurely, and the pivoting friction resistance is little, can prolong its working life, can improve the characteristics such as performance of electric expansion valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is another example structure schematic representation of the present utility model.
Fig. 3 is another example structure schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: the utility model mainly includes threaded screw rod 1, magnet 2, needle 3, needle spring 4.One end of needle 3 is placed in the needle chamber 5 of screw mandrel 1 lower end, and its upper-end surface roof pressure has needle spring 4.The upper end portion of needle 3 is provided with plane needle cover 6, be equipped with steel ball support pad 7 between between the plane on needle spring and the needle cover, this steel ball and plane needle cover 6 are to contact, thereby can reduce the surface friction drag that needle 3 produces in rotary course, enhance product performance, prolong the working life of product.
Figure 2 shows that between needle spring 4 and the plane needle cover 6 to be mounted with mushroom-shaped support pad 7, they have also formed a kind of some contact relation.
Figure 3 shows that screw mandrel 1 upper end portion is provided with ball head structure, at this moment, both can be that needle cover 6 is designed to the bulb shape, also can directly screw mandrel 1 upper end portion be designed to the bulb shape, and being mounted with a plane support pad 7 for 4 times at the needle spring, this can form a kind of some contact relation equally.
Above-described needle cover 6 can be cancelled, and directly replaces with needle 3 upper-end surfaces.
Claims (5)
1, the magnet rotor structure of electric expansion valve, it includes threaded screw rod, magnet, needle, needle spring, it is characterized in that being equipped with between described needle (3) and the needle spring (4) a support pad (7).
2, the magnet rotor structure of electric expansion valve according to claim 1 is characterized in that described support pad (7) is a steel ball support pad.
3, the magnet rotor structure of electric expansion valve according to claim 1 is characterized in that described support pad (7) also can be a mushroom-shaped hemisphere support pad.
4, the magnet rotor structure of electric expansion valve according to claim 1 is characterized in that described support pad (7) is a plane pad, and is provided with the head of circular arc at needle (3) top.
5, the magnet rotor structure of electric expansion valve according to claim 4 is characterized in that above-mentioned circular arc head is the needle cover (6) that can be nested with at needle (3) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03239057 CN2667261Y (en) | 2003-02-27 | 2003-02-27 | Magnetic rotor structure for electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03239057 CN2667261Y (en) | 2003-02-27 | 2003-02-27 | Magnetic rotor structure for electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667261Y true CN2667261Y (en) | 2004-12-29 |
Family
ID=34326861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03239057 Expired - Lifetime CN2667261Y (en) | 2003-02-27 | 2003-02-27 | Magnetic rotor structure for electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667261Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031289A1 (en) * | 2006-09-07 | 2008-03-20 | Zhejiang Dunan Precision Industries Group Co., Ltd. | Electronic expansion valve for a refrigeration system |
| CN102042415B (en) * | 2009-10-09 | 2012-07-04 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN108140466A (en) * | 2015-09-17 | 2018-06-08 | Eto电磁有限责任公司 | Electromagnetic actuator equipment and the system with electromagnetic actuator equipment |
| CN110836270A (en) * | 2018-08-17 | 2020-02-25 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
-
2003
- 2003-02-27 CN CN 03239057 patent/CN2667261Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031289A1 (en) * | 2006-09-07 | 2008-03-20 | Zhejiang Dunan Precision Industries Group Co., Ltd. | Electronic expansion valve for a refrigeration system |
| CN102042415B (en) * | 2009-10-09 | 2012-07-04 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN108140466A (en) * | 2015-09-17 | 2018-06-08 | Eto电磁有限责任公司 | Electromagnetic actuator equipment and the system with electromagnetic actuator equipment |
| CN108140466B (en) * | 2015-09-17 | 2020-05-19 | Eto电磁有限责任公司 | Electromagnetic actuator device and system with an electromagnetic actuator device |
| US10692636B2 (en) | 2015-09-17 | 2020-06-23 | Eto Magnetic Gmbh | Electromagnetic actuator device and system comprising same |
| CN110836270A (en) * | 2018-08-17 | 2020-02-25 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN110836270B (en) * | 2018-08-17 | 2021-09-28 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130227 Granted publication date: 20041229 |