CN106286936B - Electric expansion valve - Google Patents
Electric expansion valve Download PDFInfo
- Publication number
- CN106286936B CN106286936B CN201510363983.XA CN201510363983A CN106286936B CN 106286936 B CN106286936 B CN 106286936B CN 201510363983 A CN201510363983 A CN 201510363983A CN 106286936 B CN106286936 B CN 106286936B
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- China
- Prior art keywords
- assembly
- nut
- screw arbor
- electric expansion
- guide sleeve
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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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention provides a kind of electric expansion valve, comprising: shell；Valve body is fixedly connected with the casing, and forms valve chamber；Valve seat is fixed at the valve port of valve body；Nut assembly is fixedly connected on valve body；Guide sleeve is fixed between nut assembly and valve seat, and guide sleeve has upper limit portion and lower limit portion close to the side of nut assembly, and guide sleeve has pilot hole；Screw arbor assembly is threadedly engaged with nut assembly, and along the axial removable up and down of nut assembly, has stop configurations of the limit between upper limit portion and lower limit portion on screw arbor assembly；Needle, axial limiting are threaded through in pilot hole in screw arbor assembly；Rotor assembly is drivingly connected with screw arbor assembly, and driving screw arbor assembly is rotated relative to nut assembly.Electric expansion valve according to the present invention, simple process, processing cost are lower.
Description
Technical field
The present invention relates to electric expansion valve, the electric expansion valve being particularly applied in the refrigeration systems such as air conditioner, refrigerator.
Background technique
In Publication No. " JPA_2013122281 ", the Japanese patent application for applying for artificial only Gong Ji Co., Ltd.,
A kind of electric expansion valve is disclosed, in the electric expansion valve, external screw thread is stainless steel part, together with plastic part injection molding, fixed
On valve seat, which has a boss, forms lower backstop.Internal screw thread is stainless steel part, external and plastic part integrated through injection molding,
And be fixed together with magnet rotor, rotational structure is formed, which has a boss, forms chocking construction with lower backstop.
Valve needle cover is press fit together with needle, and is set with spring, forms upper stop with sleeve shell.Erection sequence should be, first
External screw thread moulding is fixed with valve seat, needle is packed into the pilot hole (53) that external screw thread is formed and is packed into spring afterwards, at this time in screw-in
The rotating mechanism that screw thread and rotor are formed after rotating to lower backstop, compresses the spring between needle step and internal thread hole, setting
Then valve opening pulse is pressed valve needle cover at the top of needle, and installs limit spring, stop in formation.Last welded sleeve.
At another, application No. is " 201210574478 ", apply for the Chinese patent Shen of artificial KK Saginomiya Seisakusyo
Please in, disclose another electric expansion valve, which forms, be plastic part, have and lead
To function, it is fixed on valve seat.Inner thread part top is provided with an outside boss, is formed with the boss on magnet rotor
Upper stop.External screw thread is also to be molded, and a boss is provided on the step installed with magnet rotor, with inner thread part
Upward boss forms lower stop.Erection sequence should are as follows: interior threaded part is installed on valve seat, and external screw thread is rotated into interior spiral shell
In line, after forming lower stop, needle is installed, spring etc. installs magnet rotor after setting valve opening pulse, and pressing sleeve is riveted,
External threaded and magnet rotor are fixed together, last welded sleeve shell.
The technique of two kinds of above-mentioned electric expansion valves is complex, and processing is inconvenient, causes processing cost higher.
Summary of the invention
Technical purpose of the invention is that the defect for solving the above-mentioned prior art, provides a kind of simple process, is processed into
This lower electric expansion valve.
It include: shell the present invention provides a kind of electric expansion valve to reach technical purpose of the invention；Valve body, with shell
Body is fixedly connected, and forms valve chamber；Valve seat is fixed at the valve port of valve body；Nut assembly is fixedly connected on valve body；
Guide sleeve is fixed between nut assembly and valve seat, and guide sleeve has upper limit portion under close to the side of nut assembly
Limiting section, guide sleeve have pilot hole；Screw arbor assembly is threadedly engaged with nut assembly, and up and down can along the axial of nut assembly
It is mobile, there are stop configurations of the limit between upper limit portion and lower limit portion on screw arbor assembly；Needle, axial limiting is in screw rod
In component, and it is threaded through in pilot hole；Rotor assembly is drivingly connected with screw arbor assembly, drives screw arbor assembly relative to nut group
Part rotation.
In electric expansion valve provided by the present invention, guide sleeve is fixed between nut assembly and valve seat, and is led
There is upper limit portion and lower limit portion to set, can be cooperated with screw arbor assembly, to the up and down motion position shape of screw arbor assembly
It is limited at limit, and then to the up and down motion position for the needle being located in screw arbor assembly.Since the electric expansion valve will be upper
Limiting section and lower limit portion are arranged on guide sleeve, are cooperated the upper and lower position to needle by guide sleeve and screw arbor assembly
It is limited, therefore only needs to process guide sleeve, simplify the processing technology of nut assembly, reduce electronic expansion
The difficulty of processing of valve, reduces the production cost of electric expansion valve, and limit accuracy is also higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the electric expansion valve of the embodiment of the present invention；
Fig. 2 is according to the A-A of Fig. 1 to sectional structure chart；
Fig. 3 is the structural schematic diagram of the guide sleeve of the electric expansion valve of the embodiment of the present invention；
Fig. 4 is the three-dimensional structure diagram of the guide sleeve of the electric expansion valve of the embodiment of the present invention；
Fig. 5 is the three-dimensional structure diagram of the screw arbor assembly of the electric expansion valve of the embodiment of the present invention；
Fig. 6 is the structure chart of the screw arbor assembly of the electric expansion valve of the embodiment of the present invention；And
Fig. 7 is according to the A-A of Fig. 6 to sectional structure chart.
Description of symbols: 10, shell；20, valve body；30, valve seat；40, nut assembly；50, guide sleeve；60, screw rod group
Part；70, needle；80, rotor assembly；21, valve port；41, nut；42, nut connecting plate；51, upper limit portion；52, lower limit portion；
53, pilot hole；54, positioning step；61, external threaded；62, screw rod moulding；63, lateral protrusions；64, bottom protrusion；65,
Buffer spring；71, stop part；81, magnet rotor；82, rotor connecting plate.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Referring to shown in Fig. 1 to Fig. 7, the present invention provides a kind of electric expansion valve, including shell 10, valve body 20, valve seat 30,
Nut assembly 40, guide sleeve 50, screw arbor assembly 60, needle 70 and rotor assembly 80, valve body 20 is fixedly connected with shell 10, and shape
At valve chamber；Valve seat 30 is fixed at the valve port 21 of valve body 20；Nut assembly 40 is fixedly connected on valve body 20；Guide sleeve 50
It is fixed between nut assembly 40 and valve seat 30, guide sleeve 50 has 51 He of upper limit portion close to the side of nut assembly 40
Lower limit portion 52, guide sleeve 50 have pilot hole 53；Screw arbor assembly 60 is threadedly engaged with nut assembly 40, and along nut assembly 40
It is axial removable up and down, there are stop configurations of the limit between upper limit portion 51 and lower limit portion 52 on screw arbor assembly 60；
70 axial limiting of needle is threaded through in pilot hole 53 in screw arbor assembly 60；Rotor assembly 80 and the driving of screw arbor assembly 60 connect
It connects, driving screw arbor assembly 60 is rotated relative to nut assembly 40.
Guide sleeve 50 is fixed between nut assembly 40 and valve seat 30, and guide sleeve 50 is close to the one of nut assembly 40
Side has upper limit portion 51 and lower limit portion 52, can be cooperated with screw arbor assembly 60, the up and down motion to screw arbor assembly 60
Position forms limit, and then limits to the up and down motion position for the needle 70 being located in screw arbor assembly 60.Due to the electronics
Upper limit portion 51 and lower limit portion 52 are arranged on guide sleeve 50 by expansion valve, are carried out by guide sleeve 50 and screw arbor assembly 60
Cooperation limits the upper and lower position of needle 70, therefore only needs to process guide sleeve 50, simplifies nut group
The processing technology of part 40, upper and lower position limiting structure are integrally machined, and improve the accuracy of limit distance.In addition, without individually setting
The mounting structure matched with the guide sleeve 50 is counted, the difficulty of processing of electric expansion valve is reduced, reduces the life of electric expansion valve
Produce cost.
Guide sleeve 50 is pressed between nut assembly 40 and valve seat 30.Guide sleeve 50 herein is not necessarily to connect by connector
It either realizes and fixes by welding, it is only necessary to be cooperated by nut assembly 40 and valve seat 30, so that it may is convenient
The position of ground fixed guide set 50, it is easy for assemble or unload, and can more efficiently guarantee nut assembly 40, valve seat 30 and lead
Concentricity between set 50 improves the accuracy of 70 direction of motion of needle.
Nut assembly 40 includes nut 41 and nut connecting plate 42, and nut 41 is fixedly connected on valve by nut connecting plate 42
On body 20, guide sleeve 50 is abutted with nut 41.In the present embodiment, nut 41 and nut connecting plate 42 are molded together, so
Nut assembly 40 is formed afterwards, can be welded on nut assembly 40 on valve body 20 by nut connecting plate 42 later, to complete
The fixed installation of nut assembly 40.Nut 41 and nut connecting plate 42 are molded together, so that the structure of nut assembly 40 is more
Add stabilization, structural strength is more preferable.
Preferably, guide sleeve 50 is provided with positioning step 54, nut 41 is set on positioning step 54, not only can be right
Guide sleeve 50 forms axial limiting, and can form radial limit to guide sleeve 50, therefore may further ensure that guide sleeve
The accuracy of 50 installation sites and the stability of mounting structure.It is of course also possible to only limit guide sleeve 50 by nut 41
Axial position, and radial limit is carried out to guide sleeve 50 by other structures such as valve seats 30.
Screw arbor assembly 60 includes external threaded 61 and screw rod moulding 62, and screw rod moulding 62 and external threaded 61 are solid
Fixed connection, and be set in outside needle 70, external threaded 61 is threadedly engaged with nut assembly 40, and rotor assembly 80 is drivingly connected
In external threaded 61.
In the present embodiment, screw rod moulding 62 is chimeric with external threaded 61, and integrated injection molding is together, a side
Face reduces molding difficulty, on the other hand makes the overall structure of screw arbor assembly 60 more firm.
Preferably, upper limit portion 51 is the first stopper protrusion on guide sleeve 50, and lower limit portion 52 is positioned at guiding
The second stopper protrusion on set 50, the first stopper protrusion and the second stopper protrusion form limit space, and stop configurations are screw rod note
Lateral protrusions 63 on plastic 62 and in limit space.In the present embodiment, the top of guide sleeve 50 is provided with connection
Bar, the top of connecting rod is arranged in the first stopper protrusion, and stretches out to the inside of guide sleeve 50, and the second stopper protrusion is from guiding
The protrusion that the top end surface of set 50 is stretched out upwards.When stop configurations are between the first stopper protrusion and the second stopper protrusion,
First stopper protrusion forms upper backstop to stop configurations, and the second stopper protrusion forms lower backstop to stop configurations, thus by backstop
Structure limits between the first stopper protrusion and the second stopper protrusion.
It may be otherwise and be not provided with the second stopper protrusion, directly using the upper surface of guide sleeve 50 as lower limit portion.
Preferably, the bottom of screw rod moulding 62 is provided with the bottom protrusion 64 stretched out towards the second stopper protrusion.The bottom
Protrusion 64 can be matched with the second stopper protrusion, increase the contact area of guide sleeve 50 and screw arbor assembly, reduce by the second backstop
Suffered percussion, improves the performance of electric expansion valve during raised backstop.
Bottom protrusion 64 and the second stopper protrusion form the circumferential position limiting structure that rotary spacing is formed to screw arbor assembly 60.Bottom
Portion's protrusion 64 can correspond to the second stopper protrusion setting of screw arbor assembly 60 along circumferential direction, be moved downwardly in screw arbor assembly 60
When position, circumferential limit can be formed to bottom protrusion 64 by the second stopper protrusion, prevent screw arbor assembly 60 from continuing to rotate, thus
So that the depressed position of screw arbor assembly 60 is more accurate and reliable.
Buffer spring 65 is provided between needle 70 and external threaded 61, the first end of buffer spring 65 is connected to outer spiral shell
On the step surface of line screw rod 61, the second end of buffer spring 65 is connected on the step surface of needle 70.Buffer spring 65 is set in
It outside needle 70, can be formed by needle 70 axially directed, guarantee that buffer spring 65 is provided to needle 70 and external threaded 61
Axial force, when needle 70 moves at 30 position of valve seat, buffer spring 65 can provide buffer function power to needle 70,
It prevents needle 70 from causing to impact to screw arbor assembly 60, is also prevented from needle 70 and is damaged due to the impact by valve seat 30.
The first end of needle 70 corresponds to the setting of valve port 21, and the second end of needle 70 is provided with backstop outside screw arbor assembly 60
Stop part 71.The stop part 71 can form backstop to needle 70, prevent needle 70 under the effect of gravity from screw arbor assembly 60
It slides.The stop part 71 can be needle pressing sleeve, or snap ring etc..
Rotor assembly 80 includes the magnet rotor 81 and rotor connecting plate 82 being fixedly connected, and magnet rotor 81 is connected by rotor
Fishplate bar 82 is fixedly connected with screw arbor assembly 60, and screw arbor assembly 60 is driven to rotate together with magnet rotor 81, thus in nut group
Under the mating reaction of part 40, make screw arbor assembly 60 that needle 70 be driven to move up and down, realizes the opening and closing and valve port size of valve port
Adjustment.Then magnet rotor 81 and rotor connecting plate 82 can be welded on screw arbor assembly 60 with integrated injection molding, can also be led to
It crosses other modes to be fixedly connected on screw arbor assembly 60, as long as can guarantee that magnet rotor 81 can drive screw arbor assembly 60 together
Rotation.
The mounting process of electric expansion valve is illustrated below:
Valve seat 30, valve body 20 and copper pipe are carried out furnace together to weld to form valve component, by nut 41 and nut connecting plate 42
Injection molding is carried out together forms nut assembly 40；Magnet rotor 81 and rotor connecting plate 82 are molded together and form rotor assembly 80；
Guide sleeve 50 is pressed on valve component first；Screw arbor assembly 60 is screwed in nut assembly 40, at this time from screw arbor assembly 60
Bottom is packed into buffer spring 65, is inserted into needle 70, by assembled nut assembly 40 and the also needle 70 of screw arbor assembly 60
Deng being pressed on the valve component for being pressed guide sleeve 50 together, then valve body 20 and nut connecting plate 42 are welded
It connects.At this point, needle 70 is under the effect of gravity, in fully closed state, by the rotation of screw arbor assembly 60 to bottom protrusion 64 and lower limit
The place of backstop is as descended in the position that position portion 52 collides, and needle 70 is motionless at this time, and screw arbor assembly 60 is due to rotating down to slow
It rushes the generation of spring 65 compression screw arbor assembly 60 back rotates a certain angle, valve opening pulse is set, passes through and carries out size
Design guarantees that buffer spring 65 is still in compressive state at this time, and needle 70 is still in full off state at this time, by rotor assembly
80 are installed on the boss of 21 one end of separate valve port of screw arbor assembly 60, and rotor assembly 80 and screw arbor assembly 60 are fixed on one
Block；Needle pressing sleeve is pressed on needle 70 at this time, and is contacted with screw arbor assembly 60, at this time the position of screw arbor assembly 60 to lower backstop
Between angle be valve opening umber of pulse；When the continuation of screw arbor assembly 60 back rotates, drive of the needle 70 in needle pressing sleeve
Under move upwards, formed valve opening；It after finally shell 10 is pressed on valve body 20, is welded, completes assembly.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of electric expansion valve characterized by comprising
Shell (10)；
Valve body (20) is fixedly connected with the shell (10), and forms valve chamber；
Valve seat (30) is fixed at the valve port (21) of the valve body (20)；
Nut assembly (40) is fixedly connected on the valve body (20)；
Guide sleeve (50) is fixed between the nut assembly (40) and the valve seat (30), and the guide sleeve (50) is leaned on
The side of the nearly nut assembly (40) has upper limit portion (51) and lower limit portion (52), and the guide sleeve (50) has guiding
Hole (53)；
Screw arbor assembly (60) is threadedly engaged with the nut assembly (40), and up and down can along the axial of the nut assembly (40)
It is mobile, there is backstop of the limit between the upper limit portion (51) and the lower limit portion (52) on the screw arbor assembly (60)
Structure；
Needle (70), axial limiting are threaded through in the pilot hole (53) in the screw arbor assembly (60)；
Rotor assembly (80) is drivingly connected with the screw arbor assembly (60), drives the screw arbor assembly (60) relative to the spiral shell
Female component (40) rotation；
The nut assembly (40) includes nut (41) and nut connecting plate (42), and the nut (41) is connected by the nut
Plate (42) is fixedly connected on the valve body (20), and the guide sleeve (50) abuts with the nut (41).
2. electric expansion valve according to claim 1, which is characterized in that the guide sleeve (50) is pressed on the nut group
Between part (40) and the valve seat (30).
3. electric expansion valve according to claim 1, which is characterized in that the guide sleeve (50) is provided with positioning step
(54), the nut (41) is set on the positioning step (54).
4. electric expansion valve according to claim 1, which is characterized in that the screw arbor assembly (60) includes external threaded
(61) and screw rod moulding (62), the screw rod moulding (62) is fixedly connected with the external threaded (61), and is set in
Outside, the external threaded (61) is threadedly engaged the needle (70) with the nut assembly (40), the rotor assembly (80)
It is drivingly connected on the external threaded (61).
5. electric expansion valve according to claim 4, which is characterized in that the upper limit portion (51) is positioned at the guiding
The first stopper protrusion on (50) is covered, the lower limit portion (52) is the second stopper protrusion on the guide sleeve (50),
First stopper protrusion and second stopper protrusion form limit space, and the stop configurations are the screw rod moulding
(62) lateral protrusions (63) on and in the limit space.
6. electric expansion valve according to claim 5, which is characterized in that the bottom of the screw rod moulding (62) is provided with
The bottom protrusion (64) stretched out towards second stopper protrusion.
7. electric expansion valve according to claim 6, which is characterized in that the bottom protrusion (64) and second backstop
Convex to form the circumferential position limiting structure that the screw arbor assembly (60) are formed with rotary spacing.
8. electric expansion valve according to claim 4, which is characterized in that the needle (70) and the external threaded
(61) it is provided between buffer spring (65), the first end of the buffer spring (65) is connected to the external threaded (61)
On step surface, the second end of the buffer spring (65) is connected on the step surface of the needle (70).
9. electric expansion valve according to claim 1, which is characterized in that the first end of the needle (70) corresponds to the valve
Mouth (21) setting, the second end of the needle (70) are provided with the stop part (71) of backstop outside in the screw arbor assembly (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363983.XA CN106286936B (en) | 2015-06-25 | 2015-06-25 | Electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363983.XA CN106286936B (en) | 2015-06-25 | 2015-06-25 | Electric expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286936A CN106286936A (en) | 2017-01-04 |
| CN106286936B true CN106286936B (en) | 2019-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510363983.XA Active CN106286936B (en) | 2015-06-25 | 2015-06-25 | Electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286936B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296266B (en) * | 2018-03-23 | 2021-08-27 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN111059295B (en) * | 2018-10-17 | 2022-04-05 | 苏州华越金属有限公司 | Electronic expansion valve |
| CN111059296B (en) * | 2018-10-17 | 2022-02-08 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN209180457U (en) * | 2018-10-22 | 2019-07-30 | 浙江盾安禾田金属有限公司 | Electric expansion valve |
| CN111963695B (en) * | 2020-07-28 | 2022-01-25 | 东风汽车集团有限公司 | Automobile-used electronic expansion valve and vehicle of low wear structure |
| CN114458773B (en) * | 2020-10-21 | 2024-03-29 | 盾安环境技术有限公司 | Electronic expansion valve |
| DE102020215276A1 (en) * | 2020-12-03 | 2022-06-23 | Mahle International Gmbh | Valve body for an expansion valve |
| CN117515196A (en) * | 2022-07-27 | 2024-02-06 | 广东威灵电机制造有限公司 | Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment |
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|---|---|---|---|---|
| JPS58118372U (en) * | 1982-02-05 | 1983-08-12 | 太平洋工業株式会社 | proportional control valve |
| CN201013922Y (en) * | 2007-03-16 | 2008-01-30 | 浙江盾安精工集团有限公司 | Electronic expansion valve for refrigerate |
| CN201891900U (en) * | 2010-11-10 | 2011-07-06 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN203657298U (en) * | 2014-01-17 | 2014-06-18 | 浙江新三荣制冷有限公司 | Electronic expansion valve |
| CN104279342A (en) * | 2013-07-12 | 2015-01-14 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN104344050A (en) * | 2013-07-25 | 2015-02-11 | 浙江三花汽车零部件有限公司 | Electronic expansion valve |
-
2015
- 2015-06-25 CN CN201510363983.XA patent/CN106286936B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58118372U (en) * | 1982-02-05 | 1983-08-12 | 太平洋工業株式会社 | proportional control valve |
| CN201013922Y (en) * | 2007-03-16 | 2008-01-30 | 浙江盾安精工集团有限公司 | Electronic expansion valve for refrigerate |
| CN201891900U (en) * | 2010-11-10 | 2011-07-06 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN104279342A (en) * | 2013-07-12 | 2015-01-14 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN104344050A (en) * | 2013-07-25 | 2015-02-11 | 浙江三花汽车零部件有限公司 | Electronic expansion valve |
| CN203657298U (en) * | 2014-01-17 | 2014-06-18 | 浙江新三荣制冷有限公司 | Electronic expansion valve |
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| CN106286936A (en) | 2017-01-04 |
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