CN203516926U - Electronic expansion valve for central air conditioner - Google Patents
Electronic expansion valve for central air conditioner Download PDFInfo
- Publication number
- CN203516926U CN203516926U CN201320471836.0U CN201320471836U CN203516926U CN 203516926 U CN203516926 U CN 203516926U CN 201320471836 U CN201320471836 U CN 201320471836U CN 203516926 U CN203516926 U CN 203516926U
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- China
- Prior art keywords
- valve
- spring
- screw mandrel
- magnet rotor
- central air
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- 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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- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 abstract 5
- 238000010009 beating Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses an electronic expansion valve for a central air conditioner, and relates to the technical field of central air conditioners. The electronic expansion valve for the central air conditioner comprises a valve body and a valve seat which are installed together, wherein a magnet rotor is arranged in the valve body, a valve needle is installed on the valve seat, the valve seat is provided with a supporting sleeve used for supporting the magnet rotor, a thrust bearing is arranged between the magnet rotor and the supporting sleeve, the magnet rotor is provided with an axial sliding cavity, a screw rod is installed in the sliding cavity in a sliding mode, a connection sleeve is fixedly installed on the valve seat, the connection sleeve is provided with a connection cavity extending in the axial direction of the screw rod, the screw rod extends into the connection cavity from one end of the connection cavity, a partition plate is arranged at one end of the valve needle, one end, provided with the partition plate, of the valve needle extends into the connection cavity from the other end of the connection cavity, a first spring and a second spring are arranged on the two sides of the partition plate respectively, the first spring is clamped and pressed between the screw rod and the partition plate, and the second spring is clamped and pressed between the partition plate and the connection sleeve. By the electronic expansion valve for the central air conditioner, friction damage between the valve needle and a valve port is reduced, and impact to the valve port from the valve needle is relieved.
Description
Technical field
The utility model relates to central air-conditioner technical field, relates in particular to a kind of electric expansion valve for central air-conditioner.
Background technique
Electric expansion valve for central air-conditioner is the principle of utilizing stepper motor at present, with the forward and reverse rotation of coil drive magnetic rotor component, and the rotating operation 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, the screw mandrel and the needle that are used for the electric expansion valve of central air-conditioner are fixed together, needle moves downward with screw mandrel, can the valve port on valve seat be produced and be impacted, because needle and screw mandrel are fixed together, needle and screw mandrel are also subject to percussion simultaneously, again because needle also rotates with screw mandrel, between needle and valve port, can produce spin friction, needle and valve port can produce wearing and tearing.
Model utility content
The purpose of this utility model is to provide a kind of electric expansion valve for central air-conditioner, the screw mandrel and the needle that are intended to solve the electric expansion valve for central air-conditioner of prior art are fixed together, needle moves with screw mandrel, needle impacts between valve port and needle and valve port and produces spin friction, the technical problem of wearing and tearing needle and valve port.
The utility model is to realize like this, electric expansion valve for central air-conditioner, 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 magnet rotor and described supporting sleeve, be provided with thrust bearing, described magnet rotor has an axially sliding chamber, in described sliding chamber, be slidably fitted with screw mandrel, on described valve seat, be installed with connecting sleeve, described connecting sleeve has one along the axially extended connection cavity of described screw mandrel, described screw mandrel stretches into described connection cavity from one end of described connection cavity, one end of described needle is provided with dividing plate, described connection cavity is stretched into from the other end of described connection cavity in the one end with the needle of described dividing plate, the both sides of described dividing plate are respectively equipped with the first spring and the second spring, described the first spring clip is pressed between described screw mandrel and dividing plate, and described the second spring clip is pressed between described dividing plate and connecting sleeve.
As a kind of improvement, the lower end of described screw mandrel is provided with steel ball, and one end of described the first spring relies on described steel ball.
As improving further, described supporting sleeve is provided with the lock washer that limits the up limit position of described screw mandrel.
As further improving, the end face of described lock washer is provided with sawtooth projection, and described screw mandrel is provided with stop ring, and the end face of described stop ring is provided with sawtooth projection.
As improving further, described valve body top inwall is provided with mandrel, and described mandrel lower end is provided with locating column, and described locating column is plugged in described magnet rotor, between described mandrel and magnet rotor, be provided with the 3rd spring, described the 3rd spring housing is located on described locating column.
Owing to adopting technique scheme, the beneficial effects of the utility model are: because connecting sleeve has axially extended connection cavity, connection cavity is stretched in one end of screw mandrel, one end of needle deeply connects cavity and needle is provided with dividing plate, between dividing plate and screw mandrel, be provided with the first spring, between dividing plate and connecting sleeve, be provided with the second spring, needle does not rotatablely move with screw mandrel, needle can not produce spin friction to valve port, when moving downward, screw mandrel first compresses the first spring and the second spring, two springs play buffer function, avoid screw mandrel to drive needle to impact valve port.
The one end that is provided with steel ball and the first spring due to the lower end of screw mandrel leans on steel ball, and steel ball rotates flexibly, when screw mandrel is rotated, can not drive needle to rotate.
Because supporting sleeve is provided with the lock washer that limits the up limit position of screw mandrel, the end face of lock washer is provided with sawtooth projection, the end face of the stop ring on screw mandrel is provided with sawtooth projection, when screw mandrel moves to upper limit position, sawtooth projection on stop ring contacts with the sawtooth projection on lock washer end face, stops screw mandrel to continue to move upward.
Because the locating column of mandrel is plugged in magnet rotor, prevent magnet rotor generation radial displacement, between mandrel and magnet rotor, be provided with the 3rd spring, in magnet rotor rotary course, magnet rotor is applied to downward active force, prevent that magnet rotor from beating.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the distribution schematic diagram of sawtooth projection on the present embodiment lock washer end face;
Fig. 3 is the structural representation of the present embodiment sawtooth projection;
Wherein: 1-valve body, 2-valve seat, 3-magnet rotor, 4-needle, 5-supporting sleeve, 6-thrust bearing, the sliding chamber of 7-, 8-screw mandrel, 9-connecting sleeve, 10-connects cavity, 11-dividing plate, 12-the first spring, 13-the second spring, 14-steel ball, 15-lock washer, 16-stop ring, 17-mandrel, 18-locating column, 19-the 3rd spring.
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 Fig. 1, shown in Fig. 2 and Fig. 3 are common, a kind of electric expansion valve for central air-conditioner, 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 magnet rotor 3 and supporting sleeve 5, be provided with thrust bearing 6, magnet rotor 3 has an axially sliding chamber 7, in sliding chamber 7, be slidably fitted with screw mandrel 8, on valve seat 2, be installed with connecting sleeve 9, connecting sleeve 9 has one along the axially extended connection cavity 10 of screw mandrel 8, screw mandrel 8 stretches into connection cavity 10 from connecting one end of cavity 10, one end of needle 4 is provided with dividing plate 11, connection cavity 10 is stretched into from connecting the other end of cavity 10 in the one end with the needle 4 of dividing plate 11, the both sides of dividing plate 11 are respectively equipped with the first spring 12 and the second spring 13, the first spring 12 clamps between screw mandrel 8 and dividing plate 11, the second spring 13 clamps between dividing plate 11 and connecting sleeve 9, needle 4 does not rotatablely move with screw mandrel 8, needle 4 can not produce spin friction to valve port, when moving downward, screw mandrel 8 first compresses the first spring 12 and the second spring 13, two springs play buffer function, avoid screw mandrel 8 to drive needle 4 to impact valve port.
In the present embodiment, one end that the lower end of screw mandrel 8 is provided with steel ball 14, the first springs 12 relies on steel ball 14, and steel ball 14 rotates flexibly, when screw mandrel 8 is rotated, can not drive needle 4 to rotate.
In the present embodiment, as shown in Fig. 2 and Fig. 3 are common, supporting sleeve 5 is provided with the lock washer 15 that limits screw mandrel 8 up limit positions, the end face of lock washer 15 is provided with sawtooth projection, screw mandrel 8 is provided with stop ring 16, the end face of stop ring 16 is provided with sawtooth projection, when screw mandrel 8 moves to upper limit position, sawtooth projection on stop ring 16 contacts with the sawtooth projection on lock washer 15 end faces, stop screw mandrel 8 to continue to move upward, because the sawtooth projection on lock washer 15 end faces matches with the sawtooth projection on stop ring 16, at this, only provide distribution and the structural representation of the sawtooth projection on lock washer end face.
In the present embodiment, valve body 1 top inwall is provided with mandrel 17, mandrel 17 lower ends are provided with locating column 18, and locating column 18 is plugged in magnet rotor 3, prevent that magnet rotor 3 from radial displacement occurring, between mandrel 17 and magnet rotor 3, be provided with the 3rd spring 19, the 3rd spring 19 is sheathed on locating column 18, in magnet rotor 3 rotary courses, magnet rotor 3 is applied to downward active force, prevents that magnet rotor 3 from beating, magnet rotor 3 and the relative position of coil are not changed, guaranteed giving full play to of magnetic property.
The electric expansion valve for central air-conditioner that the utility model provides, needle 4 is connected by connecting sleeve 9 with screw mandrel 5, and needle 4 does not rotatablely move with screw mandrel 8, avoids needle 4 spin friction valve ports, owing to being provided with the first spring 12 and the second spring 13, slow down the impact of 4 pairs of valve ports of needle.
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 (5)
1. for the electric expansion valve of central air-conditioner, 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 magnet rotor and described supporting sleeve, be provided with thrust bearing, described magnet rotor has an axially sliding chamber, in described sliding chamber, be slidably fitted with screw mandrel, it is characterized in that, on described valve seat, be installed with connecting sleeve, described connecting sleeve has one along the axially extended connection cavity of described screw mandrel, described screw mandrel stretches into described connection cavity from one end of described connection cavity, one end of described needle is provided with dividing plate, described connection cavity is stretched into from the other end of described connection cavity in the one end with the needle of described dividing plate, the both sides of described dividing plate are respectively equipped with the first spring and the second spring, described the first spring clip is pressed between described screw mandrel and dividing plate, and described the second spring clip is pressed between described dividing plate and connecting sleeve.
2. the electric expansion valve for central air-conditioner according to claim 1, is characterized in that, the lower end of described screw mandrel is provided with steel ball, and one end of described the first spring relies on described steel ball.
3. the electric expansion valve for central air-conditioner according to claim 1 and 2, is characterized in that, described supporting sleeve is provided with the lock washer that limits the up limit position of described screw mandrel.
4. the electric expansion valve for central air-conditioner according to claim 3, is characterized in that, the end face of described lock washer is provided with sawtooth projection, and described screw mandrel is provided with stop ring, and the end face of described stop ring is provided with sawtooth projection.
5. the electric expansion valve for central air-conditioner according to claim 4, it is characterized in that, described valve body top inwall is provided with mandrel, described mandrel lower end is provided with locating column, described locating column is plugged in described magnet rotor, between described mandrel and magnet rotor, be provided with the 3rd spring, described the 3rd spring housing is located on described locating column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471836.0U CN203516926U (en) | 2013-08-03 | 2013-08-03 | Electronic expansion valve for central air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471836.0U CN203516926U (en) | 2013-08-03 | 2013-08-03 | Electronic expansion valve for central air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516926U true CN203516926U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471836.0U Expired - Fee Related CN203516926U (en) | 2013-08-03 | 2013-08-03 | Electronic expansion valve for central air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516926U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108140466A (en) * | 2015-09-17 | 2018-06-08 | Eto电磁有限责任公司 | Electromagnetic actuator devices and systems with electromagnetic actuator devices |
| CN109323006A (en) * | 2017-08-01 | 2019-02-12 | 浙江盾安机械有限公司 | Electric expansion valve |
| CN109869488A (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 |
| CN111365479A (en) * | 2018-12-26 | 2020-07-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN111623125A (en) * | 2019-02-28 | 2020-09-04 | 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 |
-
2013
- 2013-08-03 CN CN201320471836.0U patent/CN203516926U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108140466A (en) * | 2015-09-17 | 2018-06-08 | Eto电磁有限责任公司 | Electromagnetic actuator devices and systems with electromagnetic actuator devices |
| CN109323006A (en) * | 2017-08-01 | 2019-02-12 | 浙江盾安机械有限公司 | Electric expansion valve |
| CN109323006B (en) * | 2017-08-01 | 2022-03-08 | 浙江盾安机械有限公司 | Electronic expansion valve |
| CN109869488B (en) * | 2017-12-01 | 2021-10-01 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and refrigeration system having the same |
| CN109869488A (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 |
| US11168804B2 (en) | 2017-12-01 | 2021-11-09 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve and cooling system having 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 |
| CN111365479A (en) * | 2018-12-26 | 2020-07-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN111365479B (en) * | 2018-12-26 | 2022-08-26 | 浙江盾安禾田金属有限公司 | 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 |
| CN111623125A (en) * | 2019-02-28 | 2020-09-04 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN111623125B (en) * | 2019-02-28 | 2022-09-09 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20160803 |
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| CF01 | Termination of patent right due to non-payment of annual fee |