CN201992917U - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN201992917U CN201992917U CN2011200886550U CN201120088655U CN201992917U CN 201992917 U CN201992917 U CN 201992917U CN 2011200886550 U CN2011200886550 U CN 2011200886550U CN 201120088655 U CN201120088655 U CN 201120088655U CN 201992917 U CN201992917 U CN 201992917U
- Authority
- CN
- China
- Prior art keywords
- expansion valve
- slip ring
- electric expansion
- coil
- stop
- 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
Links
Images
Classifications
-
- 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
Landscapes
- Lift Valve (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses an electronic expansion valve, which comprises a valve body part, a coil part, a rotor part and a stop part, wherein the coil part is sheathed at the outer side of the valve body part, and the rotor part is provided with a valve needle; and the stop part comprises a stop rod and a stop slip ring contacted with the stop rod. The electronic expansion valve is characterized in that the end part of the stop rod and/or the stop slip ring is provided with a fixedly-installed protective sleeve. When the electronic expansion valve is in a working state, at least one layer of protective sleeve is arranged between the stop rod and the stop slip ring. The end part of a slip ring extending piece and/or the stop rod are respectively provided with a fixedly-installed protective sleeve, and the top of a valve seat is installed at a protective cap on a coil shell in a sealing mode. The service life of the electronic expansion valve is prolonged, and the noises during working are reduced.
Description
Technical field
The utility model relates to refrigeration plant, more particularly, relates to a kind of electric expansion valve that is applied to refrigeration systems such as air-conditioning, freezing and refrigeration.
Background technology
Electric expansion valve is as the critical elements of refrigeration system, and it mainly is the magnetic force by solenoid, realizes the accurately purpose of control refrigerant flow.
Please refer to Fig. 1, Fig. 1 is a kind of typical electronic expansion valve mechanism of prior art schematic diagram.Electric expansion valve comprises valve part 111 and coil component 4.Described valve part 111 comprises valve seat 112, the shell 1 of fixedlying connected with valve seat 112, is built in rotor part 2 in the shell 1, seals the cover part 3 of shell 1 open top end.
Shown in Fig. 4 a and Fig. 4 b, rotor part 2 comprises the needle 202 that is arranged on its top and upwardly extending arresting lever 200 and stretches out and control 100 foldings of 112 bottom valve ports from rotor part 201 bottoms.
As shown in Figure 3, cover part 3 comprises the cylinder 300 that is positioned at its bottom and extends downwards, is installed with slip ring guide rail 301 on the cylinder 300, in described slip ring guide rail 301 formed spiral paths, be provided with slip ring 302, described slip ring 302 comprises the slip ring extension 303 that extends to side.
When electric expansion valve carried out complete shut-down or standard-sized sheet action, rotor part 4 need carry out upper and lower stop respectively.This moment, arresting lever 200 and slip ring extension 303 need clash into continuously.Because of slip ring extension 303 and arresting lever 200 are respectively rigid material, the wearing and tearing of slip ring extension 303 and arresting lever 200 are serious and send bigger strike note during bump.When electric expansion valve is contained in the indoor apparatus of air conditioner, especially at night, the noise that produces during its work can influence user's sleep quality.
As shown in Figure 2, coil 4 comprises and is enclosed within the coil case 400 that is used for potted coil 4 internal parts on the coil 4, and what described coil 4 adopted is outer encapsulating structure, and its inboard coil pawl utmost point 401 exposes outside.When after valve part 111 and coil 4 assembled electric expansion valve being carried out salt spray test, salt solution enters from coil 4 and valve part 111 cooperation places easily, causes the coil pawl utmost point 401 to get rusty.And might cause valve part 111 and coil 4 position contacting that rusty stain is also arranged.
When electric expansion valve was installed in the air-conditioner outdoor unit, entire product is exposed, and rainwater can directly enter the matching part of coil 4 and valve body 1, thereby causes the coil pawl utmost point 401 to get rusty outside, and simultaneously, valve part 111 also can get rusty with the contact site of coil 4.So not only can influence the result of use of product, also make the big heavy discount in service life of product.
The utility model content
The technical problems to be solved in the utility model is, at the electric expansion valve short and big defective of operating noise in service life of above-mentioned prior art, provides a kind of and can significantly improve the electric expansion valve that service life and operating noise greatly reduce.
The utility model is that the technical scheme that its technical problem of solution is adopted is: construct a kind of electric expansion valve, comprising:
Valve part;
Be set in the coil component in the valve part outside;
Be provided with the rotor part of needle;
Stop component: comprise arresting lever and the stop slip ring that contacts with described arresting lever;
It is characterized in that the end of described arresting lever and/or described stop slip ring is provided with hard-wired protective sleeve, when described electric expansion valve in running order, between described arresting lever and the described stop slip ring at least across one deck protective sleeve.
Preferably, described valve part comprises valve seat, is arranged on adapter on the described valve seat, is fixed on the shell on the described valve seat; Described rotor part is positioned at the cavity that described shell forms.
Preferably, the top of described shell is provided with cylinder, and described cylinder is provided with the slip ring guide rail, and described stop slip ring is positioned at described slip ring guide rail.
Preferably, described slip ring comprises the slip ring extension that extends to side.
Preferably, described arresting lever is fixed on the described rotor part.
Preferably, described coil component comprises and is enclosed within the coil case that is used for the potted coil internal part on the coil that the coil pawl utmost point of described coil inboard exposes.
Preferably, described valve part top is provided with sealing and is installed in head protector on the described coil case.
Preferably, described head protector is for falling cup part, and described head protector is fixedly mounted on the coil case by the ultrasonic bonding mode.
Implement electric expansion valve of the present utility model, have following beneficial effect:
1) seal the head protector that is installed on the coil case by being provided with at the valve seat top, head protector can block rainwater or the corrosive liquids that comes from the outside, and the practical effect of electric expansion valve is greatly improved, and therefore the life-span of electric expansion valve is also prolonged.
2) by sheathed protective sleeve on slip ring extension and/or arresting lever; prevent slip ring extension and arresting lever direct collision that the rigidity material is made; the wearing and tearing of collision generation and the noise that bump produces have been reduced; therefore the life-span of electric expansion valve is prolonged, and meanwhile the operating noise of electric expansion valve has also greatly reduced.
Description of drawings
Fig. 1 is the cutaway view of the electric expansion valve structure chart of prior art;
Fig. 2 is the cutaway view of coil structure of the electric expansion valve of prior art;
Fig. 3 is the cutaway view of cover part structure chart of the electric expansion valve of prior art;
Fig. 4 a is the structural representation of rotor part of the electric expansion valve of prior art;
Fig. 4 b is the cutaway view of rotor part structure chart of the electric expansion valve of prior art;
Fig. 5 is the cutaway view of the structure chart of the specific embodiment of electric expansion valve of the present utility model when being in first duty;
Fig. 6 is the structural representation of the rotor part of electric expansion valve specific embodiment of the present utility model;
Fig. 7 is the structural representation of the cover part of electric expansion valve specific embodiment of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Basic design of the present utility model is: the utility model by the valve part top at electric expansion valve be provided with sealing be installed in the coil case top head protector in case the inboard exposed coil pawl utmost point of principal vertical line circle be corroded.The utility model is also by slip ring extension and the arresting lever direct collision of the sheathed protective sleeve in end to prevent that the rigidity material from making at the arresting lever of electric expansion valve and slip ring extension, reduced the noise that wearing and tearing that collision produces and bump produce.By taking above technical scheme, the life-span of electric expansion valve of the present utility model is prolonged, and meanwhile the operating noise of electric expansion valve has also greatly reduced.
Please refer to Fig. 5, Fig. 5 is the cutaway view of the structure chart of the specific embodiment of electric expansion valve of the present utility model when being in first duty.
Electric expansion valve comprises: valve part 111 is set in the coil component 4 in valve part 111 outsides.Valve part 111 comprises valve seat 112, places the shell 1 of valve seat 112 upper ends, and rotor part 2 places in the cavity of shell 1 and valve seat 112 formation, and rotor part 2 is provided with needle 202; Also comprise stop component: stop component is made of arresting lever 200 and the stop slip ring 302 that contacts with described arresting lever.
Be fixed with shell 1 on the valve part 111, also comprise the adapter 900,901 that the cover part 3 of the open top end of sealing shell 1, the coil 4 that is set in shell 1 outside and valve seat 1 and outside are connected.
As shown in Figure 6, rotor part 2 comprises and is arranged on its top and upwardly extending arresting lever 200 and stretches out from rotor part 2 bottoms and the needle 202 of valve port 100 foldings of control valve seat 112 bottoms.The parts that arresting lever 200 is made for rigid material.
As shown in Figure 7, cover part 3 comprises the cylinder 300 that is positioned at its bottom and extends downwards, be installed with slip ring guide rail 301 on the cylinder 300, in described slip ring guide rail 301 formed spiral paths, be provided with stop slip ring 302, described stop slip ring 302 comprises the slip ring extension 303 that extends to side.Slip ring extension 303 is positioned at shell 1, and slip ring extension 303 is the parts of rigid material making.
It is to be noted, present embodiment is to be that example is described in detail with a kind of typical electronic expansion valve mechanism, those skilled in the art can carry out various expansions fully on the basis of present embodiment, the utility model is applicable to the electric expansion valve of different shape, structure.Might not be independent parts such as cover part, also the top of the shell of electric expansion valve can be made of one the formula structure, above-mentioned cylinder 300 directly is fixed on the top of shell.In addition, the position of slip ring guide rail 301 and slip ring also can be arranged on inside of rotor part 2 or the like.
Shown in Fig. 5,6,7, be with one deck protective sleeve at least on arresting lever 200 and slip ring extension 303 at least one parts.Protective sleeve is the parts that nonrigid material is made, for example: materials such as plastics, rubber.So, when electric expansion valve carries out the action of complete shut-down or standard-sized sheet, rotor part 4 need carry out upper and lower stop respectively.When arresting lever 200 and slip ring extension 303 need clash into continuously, arresting lever 200 can directly not contact with slip ring extension 303, between arresting lever 200 and the slip ring extension 303 at least across one deck protective sleeve.
As shown in Figure 5, when electric expansion valve carried out complete shut-down or standard-sized sheet action, rotor part 4 need carry out upper and lower stop respectively.Arresting lever 200 and slip ring extension 303 need clash into continuously, and in the present embodiment, complete shut-down or standard-sized sheet duty that we define electric expansion valve are first duty.That is: when electric expansion valve is in first duty, arresting lever 200 directly contacts with slip ring extension 303, between arresting lever 200 and the slip ring extension 303 at least across one deck protective sleeve.
Shown in Fig. 5,6,7, in the present embodiment, arresting lever 200 is provided with first protective sleeve 600, and slip ring extension 302 is provided with second protective sleeve 601.Might not arresting lever 200 during concrete the use and slip ring extension 302 on all be provided with protective sleeve, also can be only sheathed protective sleeve on parts therein.
As Fig. 3 and shown in Figure 5, coil 4 comprises and is enclosed within the coil case 400 that is used for potted coil 4 internal parts on the coil 4.Seal effect outside 400 of coil cases play, the coil pawl utmost point 401 of coil 4 inboards exposes.Shell 1 top is provided with and seals the head protector 7 that is installed on the coil case 401.
As shown in Figure 5, in the present embodiment, head protector 7 is the non-metallic component of falling the cup-shaped, head protector 7 be fixedly mounted on the coil case 401 by the ultrasonic bonding mode and seal coil 4 and valve seat 112 between the gap.In the time of concrete the use, the shape of head protector 7 is not limit, and mounting means is not limit yet, as long as can seal the gap between coil 4 and the valve seat 112.The material of head protector 7 is nonmetal, such as: plastics, rubber etc.
In the time of concrete the use, thereby thereby coil 4 by the folding of the lifting control valve port 100 of the lifting control needle 202 of energising or outage control rotor part 2, the folding of valve port 100 has determined first to take over 900 and second flow direction and the flow velocity of taking over fluid in 901.When electric expansion valve is in first duty, be provided with the protective sleeve that at least one plays cushioning effect between slip ring extension 303 and the arresting lever 200, the head protector 7 on the coil case 401 has also completely cut off extraneous corrosive liquids.Thereby realized improving the effect of electric expansion valve practical effect, raising life of product, reduction noise.
More than electric expansion valve provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also carry out some improvement and modification to the utility model; the description that is not limited to the foregoing description such as the valve body and the loop construction of electric expansion valve; no matter which kind of variation is the structure of electric expansion valve carried out; only need on stop component, to be provided with protective sleeve; protective cover perhaps is set on coil can realizes the present invention, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. an electric expansion valve comprises: valve part;
Be set in the coil component in the valve part outside;
Be provided with the rotor part of needle;
Stop component: comprise arresting lever and the stop slip ring that contacts with described arresting lever;
It is characterized in that the end of described arresting lever and/or described stop slip ring is provided with hard-wired protective sleeve, when described electric expansion valve in running order, between described arresting lever and the described stop slip ring at least across one deck protective sleeve.
2. electric expansion valve according to claim 1 is characterized in that, described valve part comprises valve seat, be arranged on adapter on the described valve seat, be fixed on the shell on the described valve seat; Described rotor part is positioned at the cavity that described shell forms.
3. electric expansion valve according to claim 1 and 2 is characterized in that the top of described shell is provided with cylinder, and described cylinder is provided with the slip ring guide rail, and described stop slip ring is positioned at described slip ring guide rail.
4. electric expansion valve according to claim 3 is characterized in that, described slip ring comprises the slip ring extension that extends to side.
5. electric expansion valve according to claim 3 is characterized in that described arresting lever is fixed on the described rotor part.
6. electric expansion valve according to claim 1 is characterized in that, described coil component comprises and be enclosed within the coil case that is used for the potted coil internal part on the coil that the coil pawl utmost point of described coil inboard exposes.
7. electric expansion valve according to claim 6 is characterized in that, described valve part top is provided with and seals the head protector that is installed on the described coil case.
8. electric expansion valve according to claim 7 is characterized in that, described head protector is for falling cup part, and described head protector is fixedly mounted on the coil case by the ultrasonic bonding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200886550U CN201992917U (en) | 2011-03-25 | 2011-03-25 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200886550U CN201992917U (en) | 2011-03-25 | 2011-03-25 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992917U true CN201992917U (en) | 2011-09-28 |
Family
ID=44669403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200886550U Expired - Fee Related CN201992917U (en) | 2011-03-25 | 2011-03-25 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992917U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115190A (en) * | 2011-11-16 | 2013-05-22 | 浙江三花股份有限公司 | Electronic expansion valve and machining method thereof |
| CN104624891A (en) * | 2015-01-27 | 2015-05-20 | 福鼎市金闽辉机车部件有限公司 | Electronic expansion valve small shaft and cover plate and forming method |
| CN105465388A (en) * | 2014-09-10 | 2016-04-06 | 浙江三花股份有限公司 | Valve body structure and electronic expansion valve |
| CN107246531A (en) * | 2017-07-10 | 2017-10-13 | 珠海格力电器股份有限公司 | The insulation construction and air-conditioning system and the heat preserving method of valve of valve |
| CN110573808A (en) * | 2017-04-28 | 2019-12-13 | 三菱电机株式会社 | Refrigeration cycle device and electrical apparatus having the same |
-
2011
- 2011-03-25 CN CN2011200886550U patent/CN201992917U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115190A (en) * | 2011-11-16 | 2013-05-22 | 浙江三花股份有限公司 | Electronic expansion valve and machining method thereof |
| CN105465388A (en) * | 2014-09-10 | 2016-04-06 | 浙江三花股份有限公司 | Valve body structure and electronic expansion valve |
| CN104624891A (en) * | 2015-01-27 | 2015-05-20 | 福鼎市金闽辉机车部件有限公司 | Electronic expansion valve small shaft and cover plate and forming method |
| CN110573808A (en) * | 2017-04-28 | 2019-12-13 | 三菱电机株式会社 | Refrigeration cycle device and electrical apparatus having the same |
| CN110573808B (en) * | 2017-04-28 | 2021-12-10 | 三菱电机株式会社 | Refrigeration cycle device and electrical apparatus having the same |
| CN107246531A (en) * | 2017-07-10 | 2017-10-13 | 珠海格力电器股份有限公司 | The insulation construction and air-conditioning system and the heat preserving method of valve of valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201992917U (en) | Electronic expansion valve | |
| CN101885323A (en) | Adopt the vehicle lamp cleaning device and the method for super sonic and sensor | |
| CN203050935U (en) | Failure warning device of automobile air filter | |
| CN200971968Y (en) | Magnetic valve | |
| CN202217620U (en) | Liquid level switch used for nonmagnetic box body | |
| CN203737639U (en) | Vehicle-mounted swing type water jet system applicable to cleaning photovoltaic arrays | |
| CN202417759U (en) | Modular fuel alarm coarse filter | |
| CN205380100U (en) | Cleaning device | |
| CN205652102U (en) | Wiper device for vehicle | |
| CN201882116U (en) | Intelligent start monitoring device for railway approaching vehicle | |
| CN201741504U (en) | Position marking manipulator | |
| CN204184153U (en) | There is energy regenerative and the vehicle active suspension actuator of the two kinds of mode of operations that initiatively consume energy | |
| CN101839195B (en) | Membrane valve carbon canister | |
| CN202686388U (en) | Automatic protection device for wheel online automatic detection probe array | |
| CN104454193A (en) | Internal combustion engine water mist flow control mechanism, water combustion-supporting system and control method of water combustion-supporting system | |
| CN201992171U (en) | Bistable electromagnetic valve | |
| CN201757013U (en) | Carbon tank | |
| CN205861126U (en) | Electric rotary-type flowing diverter | |
| CN205771962U (en) | A kind of pneumatic point-to-point transmission swings the swing sucker secure mounting arrangements of catching robot | |
| CN201071961Y (en) | Ball check valve | |
| CN204909091U (en) | Water tank and clean drink machine of clean drink machine | |
| CN204062131U (en) | A kind of against shock automatic valve position feedback device | |
| CN219568465U (en) | Clean-keeping device for dry net | |
| CN203469588U (en) | Efficient preprocessor for condensed water | |
| CN216259746U (en) | Air bag mechanism of air filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: Zhejiang Sanhua Group Co., Ltd. |
|
| 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: 20110928 Termination date: 20200325 |