CN203009981U - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN203009981U CN203009981U CN2012207304358U CN201220730435U CN203009981U CN 203009981 U CN203009981 U CN 203009981U CN 2012207304358 U CN2012207304358 U CN 2012207304358U CN 201220730435 U CN201220730435 U CN 201220730435U CN 203009981 U CN203009981 U CN 203009981U
- Authority
- CN
- China
- Prior art keywords
- screw mandrel
- valve
- plastic layer
- expansion valve
- electric expansion
- 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
Links
Images
Abstract
The utility model discloses an electronic expansion valve. The electronic expansion valve comprises a power unit which is arranged in a valve shell, a screw rod which is connected with the power unit and a nut which is matched with the screw rod through screw threads. The screw rod comprises a plastic layer and a screw rod core, wherein the plastic layer is wrapped on the periphery of the screw rod core, and the plastic layer is provided with a screw thread part which is matched with the nut. According to the electronic expansion valve, an original screw rod structure is improved to be the plastic layer and the screw rod core which is made of a metal material, and the screw thread part which is matched with the nut is arranged on the plastic layer. Screw thread matching parts of the nut and the screw rod are all plastic pieces due to the fact that the nut in the prior art is a plastic piece too, and expansion factors are close. A screw thread matching gap cannot be changed greatly when the temperature is changed, and the phenomenon that the crew thread matching parts are clamped cannot be caused, so that working reliability of the electronic expansion valve is improved.
Description
Technical field
The utility model relates to the fluid control component technical field, particularly relates to a kind of electric expansion valve.
Background technique
Two kinds of approach of electric expansion valve miniaturization are for improving braking torque and reducing resisting moment; Wherein, improve the method for braking torque for adopting the high-performance magnetism powder material to improve the surface induction intensity of rotor, but along with sharp rising of magnetic powder material price, adopt the high-performance magnetism powder material to make product cost significantly rise, therefore reducing resisting moment paired electrons expansion valve realizes that miniaturization becomes most important.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical electric expansion valve in prior art.
Electric expansion valve comprises valve seat 100 and is connected in valve casing 200 on valve seat 100, forms valve pockets after valve seat 100 and valve casing 200 are installed, and is provided with valve rod 300 in valve pocket.Be provided with motor 201 in valve casing 200, the output shaft of motor 201 is in transmission connection with screw mandrel 204 by the gear train 203 that is supported on pinion stand 202, thereby screw mandrel 204 can rotate along with the rotation of motor 201 output shafts; Screw mandrel 204 is connected with nut 205 by screw-thread fit, and nut 205 is arranged in the mounting groove 301 of valve rod 300; Along with the output shaft rotation of motor 201, screw mandrel 204 rotates, and then is with ovable valve stem 300 to move vertically, thus the aperture of valve port 101 on regulating valve seat 100.
In above-mentioned electric expansion valve, nut 205 is made of plastics, screw mandrel 204 is processed by stainless steel rolling, being nut 205 and screw mandrel 204 is made by two kinds of different materials, the expansion coefficient of this bi-material is different, after cold and hot temperature alternately changes, can cause nut 205 and the thread pitch of screw mandrel 204 screw-thread fit to change greatly, can cause thread fiting part stuck when serious; On the other hand, screw mandrel 204 is made by metallic material, without self lubricity, makes the friction factor between screw mandrel 204 and nut 205 larger, has also restricted to a certain extent the decline of electric expansion valve resisting moment.
In addition, in above-mentioned electric expansion valve, the gear riveting of screw mandrel 204 and gear train 203, in the long-term using process of electric expansion valve, screw mandrel 204 is probably loosening with being connected of gear, causes screw mandrel 204 not rotate with the rotation of motor 201.
Electric expansion valve except said structure, also there are the problems referred to above in the electric expansion valve of other structures, as screw mandrel and being connected of motor not passing through gear train, but screw mandrel is directly as the output shaft of motor, be fixedly connected with rotor, screw mandrel coordinates with nut thread, nut is arranged in valve seat, screw mandrel is connected with needle, when electric machine rotation, screw mandrel rotates thereupon, and by moving vertically together with the drive motor rotor that is threaded of nut, move vertically thereby drive needle, and then the valve port on the unlatching valve seat; In this electric expansion valve, because nut is also working of plastics, screw mandrel is metalwork, so exist equally the thread pitch of nut and screw mandrel with temperature, larger variation to occur, thereby increase the resisting moment that screw mandrel coordinates with nut thread, reduce the functional reliability of electric expansion valve.
In view of this, how electric expansion valve of the prior art being made improvements, reduce the resisting moment of electric expansion valve, improve the functional reliability of electric expansion valve, is the present technical issues that need to address of those skilled in the art.
The model utility content
The purpose of this utility model is to provide a kind of electric expansion valve, and this electric expansion valve can reduce resisting moment, improves the functional reliability of electric expansion valve.
For solving the problems of the technologies described above, the utility model provides a kind of electric expansion valve, comprise power unit, the screw mandrel that is connected with described power unit of being located in valve casing and the nut that coordinates with described wire rod thread, described screw mandrel comprises plastic layer and screw mandrel core, described plastic layer is coated on the periphery of described screw mandrel core, and has the screw section that coordinates with described nut.
Preferably, described power unit is motor, described screw mandrel is connected with the output shaft of described motor by gear assembly, also comprise the valve rod of being located in valve pocket, described nut is arranged in the mounting groove of described valve rod, and described valve rod can move axially to open or close the valve port of being located on valve seat along described valve pocket.
Preferably, described plastic layer formation polished rod section is stretched out on the top of described screw mandrel core.
Preferably, the top of described plastic layer has the first annular step surface towards described valve casing; The polished rod section plug-in mounting of described screw mandrel core is fixed in the gear of described gear assembly, and locates by the described first annular step surface.
Preferably, described screw mandrel core and described gear are by being welded and fixed.
Preferably, described power unit is magnet rotor, and described screw mandrel is fixedly connected with described magnet rotor, and described nut is arranged on the valve seat core of valve seat; Also comprise the needle that is arranged at the screw mandrel bottom, described needle can move axially to open or close the valve port of being located on described valve seat along valve pocket.
Preferably, described plastic layer formation clamping part is stretched out in the lower end of described screw mandrel core.
Preferably, the top of described plastic layer has the second annular table terrace towards described valve casing, and the top plug-in mounting of described plastic layer is fixed in the contiguous block that is fixedly connected with described rotor, and locates by described the second annular table terrace.
Preferably, the bottom of described plastic layer has radially boss, and described radially boss forms upper annular step surface and the lower annular table terrace towards described valve casing; The upper end plug-in mounting standing valve needle guard of described needle, the lower end of described valve needle cover is overlapped in described annular step surface; Be provided with spring in the needle chamber of described needle, the upper end of described spring contacts with described lower annular table terrace.
Preferably, at least one circumferential limit position part is set on the circumferential surface of described screw mandrel core.
Preferably, described screw mandrel core is Spring Steel Wire.
Preferably, described plastic layer is the polyphenylene sulfide plastic layer that comprises teflon or molybdenum disulfide; Described nut is the polyphenylene sulfide nut that comprises teflon or molybdenum disulfide.
A kind of electric expansion valve that the utility model provides, its screw mandrel comprise plastic layer and screw mandrel core, and described plastic layer is coated on the periphery of described screw mandrel core, and have the screw section that coordinates with nut.
The electric expansion valve that the utility model provides is improved to working of plastics and metalwork two-part with the structure of screw mandrel by metalwork on the basis of existing technology, and the screw section that will coordinate with nut is arranged on the plastic layer that working of plastics namely is coated on screw mandrel core periphery, because nut is working of plastics, so the thread fiting part of screw mandrel and nut is working of plastics, its expansion coefficient approaches, when even temperature changes, the Screw Thread Fit Clearance of screw mandrel and nut also is not easy to occur large variation, can not cause thread fiting part stuck.Compared with prior art, the said structure of this programme can reduce the resisting moment of screw-thread fit, thereby has improved the functional reliability of electric expansion valve.
In a kind of preferred version, the plastic layer of screw mandrel and nut are respectively plastic layer and the nut that same material such as polyphenylene sulfide are made, and wherein all comprise the material that teflon or molybdenum disulfide etc. have self lubricity, can reduce the friction factor between nut and plastic layer, greatly reduce the resisting moment of electric expansion valve, not only can improve the functional reliability of electric expansion valve, also create condition for the electric expansion valve miniaturization.
Description of drawings
Fig. 1 is the structural representation of a kind of typical electric expansion valve in prior art;
Fig. 2 provides the structural representation of electric expansion valve the first embodiment for the utility model;
Fig. 3 is the structural representation of screw mandrel in Fig. 2;
Fig. 4 provides the structural representation of electric expansion valve the second embodiment for the utility model;
Fig. 5 is the assembling schematic diagram of screw mandrel and needle in Fig. 4;
Fig. 6 is the structural representation of screw mandrel in Fig. 4;
Fig. 7 is the connection diagram of connecting plate and retaining assembly in Fig. 4;
Fig. 8 is the structural representation of connecting plate in Fig. 4.
In Fig. 1:
100 valve seats, 101 valve ports, 200 valve casings, 201 motors, 202 pinion stands, 203 gear trains, 204 screw mandrels, 205 nuts, 300 valve rods, 301 mounting grooves
In Fig. 2-8:
10 valve seats, 11 valve ports, 12 valve seat cores, 20 valve casings, 21 motors, 21 ' magnet rotor, 22 gear assemblies, 221 gears, 22 ' connecting plate, 221 ' eccentric through-hole, 23 pinion stands, 30 screw mandrels, 31 plastic layers, the 31a screw section, the annular step surface of 31b first, 31b ' the second annular table terrace, the upper annular step surface of 31c, annular table terrace under 31d, 32 screw mandrel cores, 32a polished rod section, 32a ' clamping part, 321 circumferential limit position parts, 40 nuts, 50 valve rods, 50 ' needle, 51 mounting grooves, 51 ' valve needle cover, 52 springs, 53 bearings, 54 pads, 61 spring guide rail, 62 slip rings, rectilinear end 62a
Embodiment
Core of the present utility model is to provide a kind of electric expansion valve, and this electric expansion valve can reduce resisting moment, improves the functional reliability of electric expansion valve.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Here need to prove, the related upper and lower noun of locality that waits is to be arranged in figure and component positions each other defines with component in Fig. 2 to Fig. 8 herein, just for the clear of expression technology scheme and conveniently.Should be appreciated that the noun of locality that this paper adopts should not limit the protection domain of the application's request.
Please refer to Fig. 2 and Fig. 3, Fig. 2 provides the structural representation of electric expansion valve the first embodiment for the utility model; Fig. 3 is the structural representation of screw mandrel in Fig. 2.
This electric expansion valve comprises the valve seat 10 with valve pocket and the valve casing 20 that is arranged at valve seat 10 tops, be provided with the motor 21 as power unit in valve casing 20, the output shaft of motor 21 is in transmission connection with screw mandrel 30 by the gear 221 of gear assembly 22, wherein, gear assembly 22 is supported on pinion stand 23, screw mandrel 30 is connected with nut 40 by screw-thread fit, and nut 40 is arranged in the mounting groove 51 of valve rod 50; When the gear 221 of motor 21 drive gear assemblies 22 rotated, screw mandrel 30 rotated thereupon, thereby band ovable valve stem 50 moves axially along valve pocket, to open or to close the valve port 11 on valve seat 10.Wherein, nut 40 is working of plastics.
Screw mandrel 30 comprises plastic layer 31 and screw mandrel core 32, and plastic layer 31 is coated on the periphery of screw mandrel core 32, can with plastic layer 31 and screw mandrel core 32 integrated injection moldings, form the screw section 31a that coordinates with nut 40 during molding and forming.
The top of screw mandrel core 32 is stretched out plastic layer 31 and is formed polished rod section 32a, the top of plastic layer 31 has the first annular step surface 31b towards valve casing 20, the polished rod section 32a plug-in mounting of screw mandrel core 32 is fixed in the gear 221 of gear assembly 22, and locate by the first annular step surface 31b, namely fit in the lower end surface of the first annular step surface 31b and gear 221, limit the degree of depth that screw mandrel core 32 inserts gear 221, screw mandrel core 32 can be fixedly connected with by laser beam welding with gear 221.
Certainly, the perimembranous that plastic layer 31 coats whole screw mandrel core 32 also is fine, in this kind situation, its plastic layer 31 of the position that screw mandrel 30 is connected with gear 221 needn't arrange screw thread, screw mandrel 30 so is set can only be plugged in gear 221, and be difficult for gear 221 fixing, after through long-term use, might make screw mandrel 30 loosening with being connected of gear 221, and then affect moving axially of valve rod 50.Therefore, can preferentially select foregoing embodiments, form polished rod section 32a even plastic layer 31 is stretched out on the top of screw mandrel core 32, be plugged in gear 221 and with gear 221 and fix, improve the connection reliability of screw mandrel 30 and gear 221.
Polished rod section 32a is set on the top of screw mandrel core 32 not only screw mandrel 30 can be fixedly connected with gear 221, can also by chuck to screw mandrel core 32 location, guarantee the coaxality of plastic layer 31 and screw mandrel core 32 when screw mandrel 30 injection moulding.
Because nut 40 is working of plastics, the screw section 31a of the screw mandrel 30 that coordinates with nut 40 also is working of plastics, the expansion coefficient that is nut 40 materials and screw mandrel 30 screw section 31a materials approaches, electric expansion valve is when temperature occur to change in the course of the work, nut 40 is difficult for occuring too large variation with the Screw Thread Fit Clearance of screw mandrel 30 screw section 31a, can not improve the resisting moment of screw-thread fit, and nut 40 can be not stuck with the screw section 31a of screw mandrel 30, compared with prior art, can improve the functional reliability of electric expansion valve.
Please refer to Fig. 4 to Fig. 8, Fig. 4 provides the structural representation of electric expansion valve the second embodiment for the utility model; Fig. 5 is the assembling schematic diagram of screw mandrel and needle in Fig. 4; Fig. 6 is the structural representation of screw mandrel in Fig. 4; Fig. 7 is the connection diagram of connecting plate and retaining assembly in Fig. 4; Fig. 8 is the structural representation of connecting plate in Fig. 4.
This electric expansion valve comprises valve seat 10 and is arranged at the valve casing 20 of valve seat 10 tops, be provided with the magnet rotor 21 ' as power unit in its valve pocket, magnet rotor 21 ' is fixedly connected with screw mandrel 30 by connecting plate 22 ', screw mandrel 30 and nut 40 screw-thread fit, nut 40 is fixedly arranged on valve seat 10, its underpart is sleeved on the valve seat core 12 that is positioned at valve seat 10, and the bottom floating connection of screw mandrel 30 has needle 50 ', and needle 50 ' is arranged in the pilot hole of valve seat core 12; Magnet rotor 21 ' drives screw mandrel 30 rotations, screw mandrel 30 by with the screw-thread fit of nut 40, rotatablely moving of screw mandrel 30 is converted into magnet rotor 21 ' moving axially along valve pocket, screw mandrel 30 and needle 50 ' floating connection move axially to open or close valve port on valve seat 10 thereby drive needle 50 ' along valve pocket.Wherein, nut 40 is working of plastics.
This electric expansion valve also comprises retaining assembly, and retaining assembly comprises that spring guide rail 61 and slip ring 62(are shown in Fig. 7); Spring guide rail 61 is sleeved on the top of nut 40, with the outer peripheral surface composition helical orbit of nut 40; Be provided with the rectilinear end 62a that raises up on slip ring 62, this rectilinear end 62a can insert in the eccentric through-hole 221 ' of the connecting plate 22 ' that is fixedly connected with magnet rotor 21 ', directly driving slip ring 62 when magnet rotor 21 ' rotates rotates, when the upper retainer of slip ring 62 and spring guide rail 61 or lower retainer contact, magnet rotor 21 ' stops operating, thereby the rotation of restriction magnet rotor 21 ', and then the stroke of control needle 50 '.
Screw mandrel 30 comprises plastic layer 31 and screw mandrel core 32, and plastic layer 31 is coated on the periphery of screw mandrel core 32, can with plastic layer 31 and screw mandrel core 32 integrated injection moldings, form the screw section that coordinates with nut 40 during molding and forming.
The bottom of screw mandrel core 32 is stretched out plastic layer 31 and is formed clamping part 32a ', clamping screw mandrel core 32 when this clamping part 32a ' is convenient to injection moulding, the coaxality of assurance screw mandrel core 32 and plastic layer 31.
The second annular table terrace 31b ' towards valve casing 20 is formed at the top of plastic layer 31, the top plug-in mounting of screw mandrel 30 is fixed in connecting plate 22 ', this the second annular table terrace 31b ' fits to limit with the lower end surface of connecting plate 22 ' degree of depth that screw mandrel 30 inserts connecting plate 22 ', after screw mandrel 30 is plugged in connecting plate 22 ', can weld with connecting plate 22 ' fixing by plastics.
Certainly, also can described in the first embodiment, make the top of screw mandrel core 32 stretch out plastic layer 31 formation polished rod sections, and be formed for the annular table terrace of plug-in mounting location in the upper end of plastic layer 31.In actual the setting, connecting plate 22 ' is usually by injection molding, the polished rod section of screw mandrel 30 is difficult for fixing with connecting plate 22 ' after inserting connecting plate 22 ', although can screw mandrel 30 be rotated with connecting plate 22 ' interference fit and with magnet rotor 21 ' by processing, but be difficult to avoid screw mandrel 30 loosening with being connected of connecting plate 22 ' after long time running, affect the normal use of electric expansion valve.
The bottom of plastic layer 31 has radially boss, this radially boss form towards the upper annular step surface 31c of valve casing 20 with towards the lower annular table terrace 31d of valve port; Needle 50 ' is mounted on the bottom of screw mandrel 30 by valve needle cover 51 ' (being shown in Fig. 5), particularly, upper annular step surface 31c contact and the sutaining valve needle guard 51 ' of screw mandrel 30, valve needle cover 51 ' is fixedly connected with needle 50 '; Be provided with spring 52 in the needle chamber of needle 50 ', spring 52 and lower annular table terrace 31d butt, namely the upper end of spring 52 contact with lower annular table terrace 31d, the floating connection of formation screw mandrel 30 and needle 50 '; In order to reduce the frictional force of needle 50 ' motion, also can in the needle chamber, bearing support 53 and pad 54 be set, the center of bearing support 53 has blind hole, and the clamping part 32a ' of screw mandrel core 32 can insert in this blind hole, to reduce the spatial volume of electric expansion valve.
Because the architecture advances with screw mandrel 30 is screw mandrel core 32 and the plastic layer 31 that is coated on screw mandrel core 31 peripheries, and the screw section that screw mandrel 30 coordinates with nut 40 is located on plastic layer 31, being nut 40 is plastics with the material of screw mandrel 30 screw sections, expansion coefficient approaches, electric expansion valve is when temperature changes in the course of the work, nut 40 is difficult for occuring too large variation with the Screw Thread Fit Clearance of screw mandrel 30 screw sections, can not improve the resisting moment of screw-thread fit, and nut 40 can be not stuck with the screw section of screw mandrel 30, improved the functional reliability of electric expansion valve.
For the respective embodiments described above, at least one circumferential limit position part 321(can further be set on the circumferential surface of screw mandrel core 32 to be shown in Fig. 3 and Fig. 5), this circumferential limit position part 321 can be out of shape directly by mold pressing and form, and also can be welded on screw mandrel core 32; These axial limiting parts 321 can be boss, also can other structures, and such as polymorphic structure, as long as can avoid screw mandrel core 32 and plastic layer 31 to relatively rotate after injection moulding is completed and axial relative sliding.
In the respective embodiments described above, owing to having the screw section 31a that coordinates with nut 40 on plastic layer 31, need to guarantee enough thickness, screw mandrel core 32 can be set to Spring Steel Wire, also can guarantee the intensity of screw mandrel 30.
in the respective embodiments described above, the plastic layer that the plastic layer 31 of screw mandrel 30 can be made for the polyphenylene sulfide that comprises teflon or molybdenum disulfide, nut 40 also can be made as the nut that the polyphenylene sulfide that comprises teflon or molybdenum disulfide is made, certainly, plastic layer 31 and nut 40 also can be made by other plastics with self lubricity, the plastic layer 31 of above-mentioned screw mandrel 30 and nut 40 adopt plastics of the same race to make, can further dwindle expansion coefficient between the two, make screw-thread fit between the two can too large variation not occur because of temperature variation, to reduce the resisting moment of screw-thread fit.In addition, because the teflon that adds or molybdenum disulfide have good lubricity, can reduce the friction factor between screw mandrel 30 and nut 40, further reduce the resisting moment of screw-thread fit, improve the reliability of electric expansion valve, and realize miniaturization for electric expansion valve condition is provided.
Above electric expansion valve provided by the utility model is described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation 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, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (12)
1. electric expansion valve, comprise power unit, the screw mandrel that is connected with described power unit of being located in valve casing and the nut that coordinates with described wire rod thread, it is characterized in that, described screw mandrel comprises plastic layer and screw mandrel core, described plastic layer is coated on the periphery of described screw mandrel core, and has the screw section that coordinates with described nut.
2. electric expansion valve as claimed in claim 1, it is characterized in that, described power unit is motor, described screw mandrel is connected with the output shaft of described motor by gear assembly, also comprise the valve rod of being located in valve pocket, described nut is arranged in the mounting groove of described valve rod, and described valve rod can move axially to open or close the valve port of being located on valve seat along described valve pocket.
3. electric expansion valve as claimed in claim 2, is characterized in that, the top of described screw mandrel core is stretched out described plastic layer and formed the polished rod section.
4. electric expansion valve as claimed in claim 3, is characterized in that, the top of described plastic layer has the first annular step surface towards described valve casing; The polished rod section plug-in mounting of described screw mandrel core is fixed in the gear of described gear assembly, and locates by the described first annular step surface.
5. electric expansion valve as claimed in claim 4, is characterized in that, described screw mandrel core and described gear are by being welded and fixed.
6. electric expansion valve as claimed in claim 1, is characterized in that, described power unit is magnet rotor, and described screw mandrel is fixedly connected with described magnet rotor, and described nut is arranged on the valve seat core of valve seat; Also comprise the needle that is arranged at the screw mandrel bottom, described needle can move axially to open or close the valve port of being located on described valve seat along valve pocket.
7. electric expansion valve as claimed in claim 6, is characterized in that, the lower end of described screw mandrel core is stretched out described plastic layer and formed clamping part.
8. electric expansion valve as claimed in claim 7, it is characterized in that, the top of described plastic layer has the second annular table terrace towards described valve casing, and the top plug-in mounting of described plastic layer is fixed in the contiguous block that is fixedly connected with described rotor, and locates by described the second annular table terrace.
9. electric expansion valve as claimed in claim 8, is characterized in that, the bottom of described plastic layer has radially boss, and described radially boss forms upper annular step surface and the lower annular table terrace towards described valve casing; The upper end plug-in mounting standing valve needle guard of described needle, the lower end of described valve needle cover is overlapped in described annular step surface; Be provided with spring in the needle chamber of described needle, the upper end of described spring contacts with described lower annular table terrace.
10. electric expansion valve as described in claim 1 to 9 any one, is characterized in that, at least one circumferential limit position part is set on the circumferential surface of described screw mandrel core.
11. electric expansion valve as described in claim 1 to 9 any one is characterized in that, described screw mandrel core is Spring Steel Wire.
12. electric expansion valve as described in claim 1 to 9 any one is characterized in that, described plastic layer is the polyphenylene sulfide plastic layer that comprises teflon or molybdenum disulfide; Described nut is the polyphenylene sulfide nut that comprises teflon or molybdenum disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207304358U CN203009981U (en) | 2012-12-25 | 2012-12-25 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207304358U CN203009981U (en) | 2012-12-25 | 2012-12-25 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009981U true CN203009981U (en) | 2013-06-19 |
Family
ID=48601578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207304358U Expired - Lifetime CN203009981U (en) | 2012-12-25 | 2012-12-25 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009981U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279342A (en) * | 2013-07-12 | 2015-01-14 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN104295784A (en) * | 2013-07-17 | 2015-01-21 | 浙江三花股份有限公司 | Electronic expansion valve and manufacturing method thereof |
| CN104613185A (en) * | 2013-11-01 | 2015-05-13 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN104791497A (en) * | 2014-01-20 | 2015-07-22 | 浙江三花股份有限公司 | Direct acting electric valve |
| CN104791536A (en) * | 2014-01-20 | 2015-07-22 | 浙江三花股份有限公司 | Direct-acting type electric valve |
| CN105546134A (en) * | 2016-01-29 | 2016-05-04 | 浙江绿洲制冷设备有限公司 | Electronic expansion valve |
| US9964227B2 (en) | 2013-07-17 | 2018-05-08 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | Electronic expansion valve and manufacturing method therefor |
| WO2018114543A1 (en) * | 2016-12-22 | 2018-06-28 | Continental Automotive Gmbh | Valve arrangement for a motor vehicle |
| WO2018188500A1 (en) * | 2017-04-12 | 2018-10-18 | 杭州三花研究院有限公司 | Electronic expansion valve |
| US10352467B2 (en) | 2014-01-20 | 2019-07-16 | Zhejiang Sanhua Climate And Appliance Controls Group Co., Ltd | Direct-action-type electrically-operated valve and assembly method therefor |
| WO2019179516A1 (en) * | 2018-03-23 | 2019-09-26 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2019179518A1 (en) * | 2018-03-23 | 2019-09-26 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN111365466A (en) * | 2018-12-25 | 2020-07-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve and air conditioning system using same |
| CN114233878A (en) * | 2018-06-20 | 2022-03-25 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| US11796234B2 (en) | 2018-12-25 | 2023-10-24 | Zhejiang Dunan Artificial Environment Co., Ltd. | Electronic expansion valve and air conditioning system with electronic expansion valve |
-
2012
- 2012-12-25 CN CN2012207304358U patent/CN203009981U/en not_active Expired - Lifetime
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279342A (en) * | 2013-07-12 | 2015-01-14 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN104295784B (en) * | 2013-07-17 | 2016-09-28 | 浙江三花制冷集团有限公司 | Electric expansion valve and preparation method thereof |
| CN104295784A (en) * | 2013-07-17 | 2015-01-21 | 浙江三花股份有限公司 | Electronic expansion valve and manufacturing method thereof |
| US9964227B2 (en) | 2013-07-17 | 2018-05-08 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | Electronic expansion valve and manufacturing method therefor |
| CN104613185A (en) * | 2013-11-01 | 2015-05-13 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN104613185B (en) * | 2013-11-01 | 2018-04-13 | 浙江三花制冷集团有限公司 | Electric expansion valve |
| US10352467B2 (en) | 2014-01-20 | 2019-07-16 | Zhejiang Sanhua Climate And Appliance Controls Group Co., Ltd | Direct-action-type electrically-operated valve and assembly method therefor |
| CN104791536B (en) * | 2014-01-20 | 2017-09-01 | 浙江三花制冷集团有限公司 | A kind of direct-driven motor-operated valve |
| CN104791536A (en) * | 2014-01-20 | 2015-07-22 | 浙江三花股份有限公司 | Direct-acting type electric valve |
| CN104791497A (en) * | 2014-01-20 | 2015-07-22 | 浙江三花股份有限公司 | Direct acting electric valve |
| CN105546134A (en) * | 2016-01-29 | 2016-05-04 | 浙江绿洲制冷设备有限公司 | Electronic expansion valve |
| WO2018114543A1 (en) * | 2016-12-22 | 2018-06-28 | Continental Automotive Gmbh | Valve arrangement for a motor vehicle |
| CN110168267A (en) * | 2016-12-22 | 2019-08-23 | Cpt集团有限责任公司 | Valve gear for motor vehicles |
| KR102221874B1 (en) * | 2016-12-22 | 2021-03-02 | 씨피티 그룹 게엠베하 | Automotive valve device |
| KR20190119578A (en) * | 2016-12-22 | 2019-10-22 | 씨피티 그룹 게엠베하 | Automotive valve device |
| WO2018188500A1 (en) * | 2017-04-12 | 2018-10-18 | 杭州三花研究院有限公司 | Electronic expansion valve |
| US11703258B2 (en) | 2017-04-12 | 2023-07-18 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
| CN110296265A (en) * | 2018-03-23 | 2019-10-01 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN110296266A (en) * | 2018-03-23 | 2019-10-01 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| WO2019179518A1 (en) * | 2018-03-23 | 2019-09-26 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| 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 |
| US11333415B2 (en) | 2018-03-23 | 2022-05-17 | Zhejiang Sanhua Intelligent Controls | Electronic expansion valve |
| WO2019179516A1 (en) * | 2018-03-23 | 2019-09-26 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN114233878A (en) * | 2018-06-20 | 2022-03-25 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN114233878B (en) * | 2018-06-20 | 2024-01-30 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN111365466A (en) * | 2018-12-25 | 2020-07-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve and air conditioning system using same |
| US11796234B2 (en) | 2018-12-25 | 2023-10-24 | Zhejiang Dunan Artificial Environment Co., Ltd. | Electronic expansion valve and air conditioning system with electronic expansion valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203009981U (en) | Electronic expansion valve | |
| CN201438662U (en) | Tire expanding device | |
| CN202781032U (en) | Assembly tool for oil seal jacket in deep hole of rotor shaft of aero-engine | |
| CN104227726A (en) | Permanent magnetic adsorbing mechanical arm | |
| CN103737431B (en) | A kind of machine cut power analog loading device | |
| CN204504279U (en) | A kind of Novel cylinder jacket right boring endoporus special fixture | |
| CN204094511U (en) | Impeller duplicate removal device | |
| CN102570691A (en) | Optimizing scheme for vertical motor floating end bearing structure | |
| CN206200157U (en) | A kind of floating type frock of bearing machining lathe | |
| CN202488292U (en) | Motor in-shaft combined tool | |
| CN207265754U (en) | Motor | |
| CN202622287U (en) | Floating type pressure head assembly of press-fitting press | |
| CN103433514B (en) | There is the ram of C axle calibration function | |
| CN205552271U (en) | Polishing machine | |
| CN109623641A (en) | A kind of workpiece spindle tool-broaching mechanism | |
| CN105562839B (en) | Gear grinding machine with worm grinding wheel rotary table | |
| CN207518402U (en) | A kind of bistrique direct driving motor | |
| CN106312290A (en) | Bench-type stirring and friction welding equipment | |
| CN202427973U (en) | Force measuring tailstock with thermal deformation absorbing function | |
| CN207364152U (en) | Electromagnetic brake | |
| CN201334593Y (en) | Rotating shuttle shaft | |
| CN205967448U (en) | Spindle unit of lathe | |
| CN103692246A (en) | Four-hole tapping rotary table for crankshafts | |
| CN203579311U (en) | Turntable dividing device | |
| CN205265441U (en) | Linear brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 312500 Xinchang, Zhejiang Qixing street under the Liquan Patentee after: ZHEJIANG SANHUA INTELLIGENT CONTROLS Co.,Ltd. Address before: 312500 Liquan village of Chengguan Zhejiang city of Shaoxing province Xinchang County town Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
|
| CX01 | Expiry of patent term |