CN203516769U - Electronic expansion valve for ground source heat pump - Google Patents
Electronic expansion valve for ground source heat pump Download PDFInfo
- Publication number
- CN203516769U CN203516769U CN201320471759.9U CN201320471759U CN203516769U CN 203516769 U CN203516769 U CN 203516769U CN 201320471759 U CN201320471759 U CN 201320471759U CN 203516769 U CN203516769 U CN 203516769U
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- Prior art keywords
- screw mandrel
- magnet rotor
- needle
- source heat
- valve
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- Expired - Fee Related
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Abstract
The utility model discloses an electronic expansion valve for a ground source heat pump, and relates to the technical field of ground source heat pumps. The electronic expansion valve for the ground source heat pump comprises a valve body and a valve seat, wherein the valve body and the valve seat are installed together, a magnetic rotor is arranged in the valve body, a valve needle is installed on the valve seat, a supporting sleeve used for supporting the magnetic rotor is arranged on the valve seat, a thrust bearing is arranged between the supporting sleeve and the magnetic rotor, the magnetic rotor is provided with an axial sliding cavity, a lead screw which is connected with the valve needle is installed in the axial sliding cavity in a sliding mode, a radial protrusion is arranged on the lead screw, a groove is formed in the inner wall of the axial sliding cavity, is used for containing the radial protrusion, and extends along the axial sliding cavity in the axial direction, threads are formed in the end, connected with the valve needle, of the lead screw, and the lead screw is connected with the supporting sleeve in a threaded connection mode. According to the electronic expansion valve for the ground source heat pump, the magnetic rotor cannot move in the axial direction in the process of rotation, relative position between the magnetic rotor and coils cannot be changed, and it is ensured that magnetic performance is brought into full play.
Description
Technical field
The utility model relates to ground source heat pump technology field, relates in particular to a kind of electric expansion valve for earth source heat pump.
Background technique
The electric expansion valve of the current vaporizer for earth source heat pump is the principle of utilizing stepper motor, with the forward and reverse rotation of coil drive magnetic rotor component, and rotatablely moving of magnetic rotor component is converted into moving up and down of screw mandrel, by screw mandrel, driven the needle rise and fall that are attached thereto, control the uninterrupted of electric expansion valve.
In prior art, magnet rotor and screw mandrel are fixed together by molding and forming, and in use, magnet rotor moves with screw mandrel, but magnet rotor and coil relative position can change in movement process, thereby affect giving full play to of magnetic property.
Model utility content
The purpose of this utility model is to provide a kind of electric expansion valve, the magnet rotor and the screw mandrel that are intended to solve the electric expansion valve of prior art are fixed together, magnet rotor moves with screw mandrel, magnet rotor and coil relative position can change, thereby affect the technical problem of giving full play to of magnetic property.
The utility model is to realize like this, electric expansion valve for earth source heat pump, comprise the valve body and the valve seat that are installed together, in described valve body, be provided with magnet rotor, on described valve seat, needle is installed, described valve seat is provided with for supporting the supporting sleeve of described magnet rotor, between described supporting sleeve and magnet rotor, be provided with thrust bearing, described magnet rotor has an axially sliding chamber, in described axial sliding chamber, be slidably fitted with the screw mandrel that connects described needle, described screw mandrel is provided with radial protrusion, the inwall in described axial sliding chamber is provided with and holds described radial protrusion and along the axially extended groove in described axial sliding chamber, the one end that connects described needle on described screw mandrel is provided with screw thread, described screw mandrel is connected with described thread of supporting sleeves.
As a kind of improvement, described supporting sleeve is provided with the stop screw that limits the up limit position of described screw mandrel, and the top that is positioned at screw thread on described screw mandrel is provided with spacing preiection.
As improving further, described valve body top inner wall is provided with mandrel, and described mandrel lower end is provided with locating column, and described locating column is plugged on described magnet rotor, between described mandrel and described magnet rotor, is provided with spring, and described spring housing is located on described locating column.
As further improving, described screw mandrel connects described needle by link, one end of described link is fixedly installed in the end of described screw mandrel, the other end is provided with guiding cavity, the end of described needle is plugged in described guiding cavity, and described needle and link link together by a locating stud.
Owing to adopting technique scheme, the beneficial effects of the utility model are: because screw mandrel is slidably mounted in the axial sliding chamber of magnet rotor, and screw mandrel is provided with radial protrusion, the inwall in sliding chamber is provided with and holds the axially extended groove in the sliding chamber of radial protrusion and edge, at magnet rotor in rotary course, magnet rotor drives screw mandrel to rotatablely move, but can not move up and down with screw mandrel, magnet rotor is not moved in the axial direction, magnet rotor and coil relative position do not change, and guarantee giving full play to of magnetic property.
Because supporting sleeve is provided with the stop screw that limits the up limit position of screw mandrel, the top that is positioned at screw thread on screw mandrel is provided with spacing preiection, when screw mandrel moves upward spacing preiection while contacting with stop screw, screw mandrel stops the rotation, magnet rotor also stops the rotation, to control the rotating distance of magnet rotor, simple in structure, dwindled the volume of electric expansion valve.
Because valve body top inner wall is provided with mandrel, mandrel lower end is provided with locating column, and locating column is plugged on magnet rotor, prevent magnet rotor generation radial displacement, between mandrel and magnet rotor, be provided with spring, magnet rotor is applied to downward active force, prevent that magnet rotor from moving upward.
Because screw mandrel is connected by link with needle, one end of link is fixedly installed in the end of screw mandrel, the other end is provided with guiding cavity, the end of needle is plugged in guiding cavity, needle and link link together by a locating stud, when screw mandrel or needle are damaged, screw mandrel need not be changed together with needle, can only change the parts of damage, convenient operation, cost-saving.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation;
Wherein: 1-valve body, 2-valve seat, 3-magnet rotor, 4-needle, 5-supporting sleeve, 6-thrust bearing, 7-is sliding chamber axially, 71-groove, 8-screw mandrel, 81-radial protrusion, 82-spacing preiection, 9-stop screw, 10-mandrel, 11-locating column, 12-spring, 13-link, the 14-cavity that leads, 15-locating stud.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of electric expansion valve for earth source heat pump, comprise the valve body 1 and the valve seat 2 that are installed together, in valve body 1, be provided with magnet rotor 3, needle 4 is installed on valve seat 2, valve seat 2 is provided with for supporting the supporting sleeve 5 of magnet rotor 3, between supporting sleeve 5 and magnet rotor 3, be provided with thrust bearing 6, magnet rotor 3 has an axially sliding chamber 7, in axially sliding chamber 7, be slidably fitted with the screw mandrel 8 that connects needle 4, screw mandrel 8 is provided with radial protrusion 81, the inwall in axially sliding chamber 7 is provided with and holds radial protrusion 81 and slide vertically the axially extended groove 71 in chamber 7, at magnet rotor 3 in rotary course, magnet rotor 3 drives screw mandrel 8 to rotatablely move, but can not be moved in the axial direction with screw mandrel 8, magnet rotor 3 does not change with coil relative position, guarantee giving full play to of magnetic property, the one end that connects needle 4 on screw mandrel 8 is provided with screw thread, screw mandrel 8 is threaded with supporting sleeve 5.
In the present embodiment, supporting sleeve 5 is provided with the stop screw 9 that limits screw mandrel 8 up limit positions, the top that is positioned at screw thread on screw mandrel 8 is provided with spacing preiection 82, when screw mandrel 8 moves upward spacing preiection 82 while contacting with stop screw 9, screw mandrel 8 stops the rotation, and magnet rotor 3 also stops the rotation, to control the rotating distance of magnet rotor 3, simple in structure, dwindled the volume of electric expansion valve.
In the present embodiment, valve body 1 top inner wall is provided with mandrel 10, mandrel 10 lower ends are provided with locating column 11, locating column 11 is plugged on magnet rotor 3, prevent that magnet rotor 3 from radial displacement occurring, between mandrel 10 and magnet rotor 3, be provided with spring 12, spring 12 is sheathed on locating column 11, magnet rotor 3 is applied to downward active force, prevent that magnet rotor 3 from moving upward.
In the present embodiment, screw mandrel 8 connects needle 4 by link 13, one end of link 13 is fixedly installed in the end of screw mandrel 8, the other end is provided with guiding cavity 14, and the end of needle 4 is plugged in guiding cavity 14, and needle 4 and link 13 link together by a locating stud 15, when being damaged, screw mandrel 8 or needle 4 screw mandrel 8 need not be changed together with needle 4, can only change the parts of damage, convenient operation, cost-saving.
The present embodiment in use, magnet rotor 3 rotarily drives screw mandrel 8 along supporting sleeve 5 rotations, because screw mandrel 8 and supporting sleeve 5 are in axial sliding connection and are radially in transmission connection, screw mandrel 8 moves up and down, drive needle 4 to move up and down, with the aperture of control valve, and magnet rotor 3 does not move in the axial direction, magnet rotor 3 does not change with coil relative position, guarantees giving full play to of magnetic property.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. for the electric expansion valve of earth source heat pump, comprise the valve body and the valve seat that are installed together, in described valve body, be provided with magnet rotor, on described valve seat, needle is installed, it is characterized in that, described valve seat is provided with for supporting the supporting sleeve of described magnet rotor, between described supporting sleeve and magnet rotor, be provided with thrust bearing, described magnet rotor has an axially sliding chamber, in described axial sliding chamber, be slidably fitted with the screw mandrel that connects described needle, described screw mandrel is provided with radial protrusion, the inwall in described axial sliding chamber is provided with and holds described radial protrusion and along the axially extended groove in described axial sliding chamber, the one end that connects described needle on described screw mandrel is provided with screw thread, described screw mandrel is connected with described thread of supporting sleeves.
2. the electric expansion valve for earth source heat pump according to claim 1, is characterized in that, described supporting sleeve is provided with the stop screw that limits the up limit position of described screw mandrel, and the top that is positioned at screw thread on described screw mandrel is provided with spacing preiection.
3. the electric expansion valve for earth source heat pump according to claim 1 and 2, it is characterized in that, described valve body top inner wall is provided with mandrel, described mandrel lower end is provided with locating column, described locating column is plugged on described magnet rotor, between described mandrel and described magnet rotor, be provided with spring, described spring housing is located on described locating column.
4. the electric expansion valve for earth source heat pump according to claim 3, it is characterized in that, described screw mandrel connects described needle by link, one end of described link is fixedly installed in the end of described screw mandrel, the other end is provided with guiding cavity, the end of described needle is plugged in described guiding cavity, and described needle and link link together by a locating stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471759.9U CN203516769U (en) | 2013-08-03 | 2013-08-03 | Electronic expansion valve for ground source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471759.9U CN203516769U (en) | 2013-08-03 | 2013-08-03 | Electronic expansion valve for ground source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516769U true CN203516769U (en) | 2014-04-02 |
Family
ID=50375701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471759.9U Expired - Fee Related CN203516769U (en) | 2013-08-03 | 2013-08-03 | Electronic expansion valve for ground source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516769U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869519A (en) * | 2017-12-01 | 2019-06-11 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| WO2020132967A1 (en) * | 2018-12-26 | 2020-07-02 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN111623126A (en) * | 2019-02-28 | 2020-09-04 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| WO2021042955A1 (en) * | 2019-09-06 | 2021-03-11 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
-
2013
- 2013-08-03 CN CN201320471759.9U patent/CN203516769U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869519A (en) * | 2017-12-01 | 2019-06-11 | 浙江三花智能控制股份有限公司 | Electric expansion valve and refrigeration system with it |
| CN109869519B (en) * | 2017-12-01 | 2022-05-31 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and refrigerating system with same |
| WO2020132967A1 (en) * | 2018-12-26 | 2020-07-02 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| KR20210096228A (en) * | 2018-12-26 | 2021-08-04 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | electronic expansion valve |
| JP2022515316A (en) * | 2018-12-26 | 2022-02-18 | 浙江盾安人工環境股▲ふん▼有限公司 | Electronic expansion valve |
| KR102502517B1 (en) | 2018-12-26 | 2023-02-23 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | electronic expansion valve |
| JP7232907B2 (en) | 2018-12-26 | 2023-03-03 | 浙江盾安人工環境股▲ふん▼有限公司 | electronic expansion valve |
| CN111623126A (en) * | 2019-02-28 | 2020-09-04 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| WO2021042955A1 (en) * | 2019-09-06 | 2021-03-11 | 艾默生环境优化技术(苏州)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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20160803 |