CN105485400A - Electric switching valve - Google Patents
Electric switching valve Download PDFInfo
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- CN105485400A CN105485400A CN201410478617.4A CN201410478617A CN105485400A CN 105485400 A CN105485400 A CN 105485400A CN 201410478617 A CN201410478617 A CN 201410478617A CN 105485400 A CN105485400 A CN 105485400A
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- export mouth
- hole
- slide block
- switching valve
- valve seat
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Abstract
The invention discloses an electric switching valve. The electric switching valve comprises a valve seat and a sliding block which is attached to the upper end of the valve seat in a sealing mode. The sliding block can rotate relative to the valve seat so as to open and close a guiding-out opening of the valve seat. The number of the guiding-out opening is one. A through hole is formed in the sliding block. The flow area of the through hole is smaller than that of the guiding-out opening. In the rotating process of the sliding block, the through hole can be communicated with the guiding-out opening. According to the electric switching valve, the refrigerant flow can be controlled, the energy loss is reduced, and energy consumption of a refrigerating system is reduced.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of dynamoelectric switching valve.
Background technique
In refrigerating circulatory device, as refrigerator, usually adopt dynamoelectric switching valve as the controlling component changing refrigerant flowpath.
Existing dynamoelectric switching valve comprises valve seat and is fixedly arranged on the shell above valve seat, and also comprise motor, the coil component of motor is coated at shell, and rotor part is built in shell.
Enclosure forms valve pocket, valve seat offers introduction channel and derives passage, its upper-end surface has the export mouth corresponding with deriving passage, valve seat is also provided with and seals the slide block of fitting with its upper-end surface, this slide block is synchronous axial system under the driving of rotor part, coordinate with export mouth, to control the open and-shut mode of export mouth.
Please refer to Fig. 1-3, Fig. 1 is the structural representation that the valve seat of existing a kind of dynamoelectric switching valve coordinates with slide block; Fig. 2 is the structural representation of slide block in Fig. 1; Fig. 3 is the structural representation of valve seat in Fig. 1.
As shown in the figure, the upper-end surface of valve seat 11 has three export mouth 11a, and the bottom of slide block 15 has and seals with valve seat 11 upper-end surface the sealing surface 15a fitted, and breach 15b.After slide block 15 coordinates with valve seat 11, slide block 15 can rotate, when its breach 15b is in open mode with export mouth 11a position to this export mouth 11a time corresponding, when its sealing surface 15a is in closed condition with export mouth 11a position to this export mouth 11a time corresponding.
But along with optimizing of refrigeration system, needs can control refrigerant flow more accurately, reduce energy loss, above-mentioned dynamoelectric switching valve only can realize the opening and closing function of export mouth, cannot meet the further requirement of refrigeration system.
In view of this, how to improve the structure of dynamoelectric switching valve, can control refrigerant flow, reducing energy loss, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of dynamoelectric switching valve, can adjusting refrigerant flow rate, reduce energy loss, thus reduce the energy consumption of refrigeration system.
For solving the problems of the technologies described above, the invention provides a kind of dynamoelectric switching valve, comprising valve seat and sealing the slide block fitting in described valve seat upper end; Described slide block can rotate relative to described valve seat, is located at the export mouth of described valve seat with opening and closing; Described export mouth is one; Described slide block offers the through hole that circulation area is less than described export mouth, and in described slide block rotation process, described through hole can be communicated with described export mouth.
Dynamoelectric switching valve provided by the invention can adjusting refrigerant flow rate, reduces energy loss, reduces the energy consumption of refrigeration system.Particularly, in this programme, valve seat only arranges an export mouth, slide block offers the through hole that can be communicated with export mouth, and the circulation area of described through hole is less than export mouth, so, in slide block opposite valve seat rotation process, throttling function is realized with coordinating of described export mouth by described through hole, make dynamoelectric switching valve on the basis realizing opening and closing export mouth function, also can realize the adjustment of flow, there is the function controlling refrigerant flow, thus minimizing energy loss, reduce the energy consumption of refrigeration system.
Described through hole is multiple and circulation area different.
The through hole that multiple circulation area is less than export mouth is set, and the circulation area of each through hole is different, more accurately can control the flow of refrigeration agent, improves the degree of regulation of each warm area temperature of refrigeration system, reduce energy loss further.
In described slide block rotation process, multiple described through hole can be communicated with described export mouth in turn according to circulation area size.
Multiple described through hole is circular arc distribution, and the center of circle of described circular arc is the center of rotation of described slide block, and the distance of described export mouth and described center of rotation equals the distance of described through hole and described center of rotation.
Multiple described through hole is uniformly distributed along described circular arc.
Each described through hole is all set to circular port, and described export mouth is circular port.
Each described through hole is all set to step hole; The diameter of the path section of each described step hole is different, and is all less than the diameter of described export mouth.
Described slide block also has breach, and described breach is in full-gear with described export mouth position to export mouth described time corresponding.
Described slide block also offers the intercommunicating pore that circulation area is not less than described export mouth, and in described slide block rotation process, described intercommunicating pore can be communicated with described export mouth.
Described intercommunicating pore is step hole, and the circulation area of its minor diameter part is not less than described export mouth.
Accompanying drawing explanation
Fig. 1 is the structural representation that the valve seat of existing a kind of dynamoelectric switching valve coordinates with slide block;
Fig. 2 is the structural representation of slide block in Fig. 1;
Fig. 3 is the structural representation of valve seat in Fig. 1;
Fig. 4 is the structural representation of a kind of embodiment of dynamoelectric switching valve provided by the present invention;
Fig. 5 is the structural representation of the valve seat of dynamoelectric switching valve in specific embodiment;
Fig. 6 is the structural representation of the slide block of dynamoelectric switching valve in specific embodiment;
Fig. 7 is the inverted structural representation of slide block in Fig. 6;
Fig. 8 is the generalized section of slide block in Fig. 6;
Fig. 9 and Figure 10 shows the structural representation that in specific embodiment, valve seat and slide block coordinate;
Figure 11 is the flow curve schematic diagram of existing dynamoelectric switching valve;
Figure 12 is the flow curve schematic diagram of a kind of dynamoelectric switching valve provided by the present invention.
In Fig. 1-3:
Valve seat 11, export mouth 11a, slide block 15, sealing surface 15a, breach 15b;
In Fig. 4-10:
Valve seat 21, export mouth 21a, introducing port 21b;
Shell 22, coil component 23, rotor part 24;
Slide block 25, through hole 25a, large footpath section 25a-1, path section 25a-2, breach 25b, axis hole 25c, body 251, protuberance 252.
Embodiment
Core of the present invention is to provide a kind of dynamoelectric switching valve, can adjusting refrigerant flow rate, reduces energy loss, thus reduces the energy consumption of refrigeration system.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 4, Fig. 4 is the structural representation of a kind of embodiment of dynamoelectric switching valve provided by the present invention.
As shown in FIG., this dynamoelectric switching valve comprises valve seat 21 and forms with valve seat 21 is fixing the shell 22 sealing valve pocket.
Wherein, the upper-end surface of valve seat 21 has export mouth, and be also provided with the slide block 25 that sealing fits in valve seat 21 upper end in described valve pocket, this slide block 25 can rotate by opposite valve seat 21, to control the open and-shut mode of export mouth.
The parts driving slide block 25 to rotate are motor, and the coil component 23 of this motor is coated at shell 22, and rotor part 24 is placed in described valve pocket.
Wherein, the export mouth of valve seat 21 is set to one, slide block 25 offers the through hole that circulation area is less than export mouth, and slide block 25 is in rotation process, and this through hole can be communicated with export mouth.
Compared in background technique, slide block rotates the open and-shut mode of export mouth on a control valve seat, dynamoelectric switching valve provided by the invention, slide block 25 offers the through hole that can be communicated with the export mouth of valve seat 21, and the circulation area of this through hole is less than export mouth, so, in slide block 25 opposite valve seat 21 rotation process, throttling function is realized with being communicated with of described export mouth by described through hole, make dynamoelectric switching valve on the basis realizing opening and closing export mouth function, also can realize the adjustment of flow, there is the function controlling refrigerant flow, thus minimizing energy loss, reduce the energy consumption of refrigeration system.
Specifically introduce the structure of valve seat and slide block below in conjunction with Fig. 5 to Fig. 8, wherein, Fig. 5 is the structural representation of the valve seat of dynamoelectric switching valve in specific embodiment; Fig. 6 is the structural representation of the slide block of dynamoelectric switching valve in specific embodiment; Fig. 7 is the inverted structural representation of slide block in Fig. 6; Fig. 8 is the generalized section of slide block in Fig. 6.
As shown in Figure 5, valve seat 21 offers introduction channel and derives passage; The export mouth 21a be communicated with introduction channel is located at the upper-end surface of valve seat 21, and the introducing port 21b be communicated with introduction channel is opened in the side of valve seat 21.
Wherein, export mouth 21a is opened in the upper-end surface of valve seat 21, is convenient to slide block 25 and coordinates to open or close export mouth 21a with valve seat 21.
Should be appreciated that the introducing port 21b of valve seat 21 can be opened in position easily, it specifically offers the protection domain that position does not limit the application's request.
In concrete scheme, valve seat 21 is set to stepped cylindrical shape structure, is convenient to the layout of valve pocket inner rotor part 24 or other components (parts as with slide block 25 backstop); The upper-end surface of valve seat 21 minor diameter part is the sealing surface of fitting with slide block 25, and export mouth 21a also offers thereon, and introducing port 21b is opened in the side face of valve seat 21 minor diameter part.
As shown in Figure 6 and Figure 7, the protuberance 252 that slide block 25 comprises cylindrical body 251 and is wholely set with body 251, protuberance 252 is in fan-like structure, and body 251 and protuberance 252 are arranged with one heart, and the diameter of body 251 is less than protuberance 252.
Wherein, body 251 is for being connected with rotor part 24, and the end face of protuberance 252 is the sealing surface coordinated with valve seat 21.
Slide block 25 has three through hole 25a, and obviously in order to realize in slide block 25 rotation process, through hole 25a is communicated with export mouth 21a, and the aperture of three through hole 25a is all placed in the end face of protuberance 252.
In concrete scheme, three through hole 25a are all set to circular port, and export mouth 21a is also set to circular port, are convenient to process and cooperation each other.Certainly, actual when arranging, be set to other shapes as oval, square etc. be also feasible.
Wherein, the diameter of three through hole 25a is different, and is all less than the diameter of export mouth 21a, thus has different flows when each through hole 25a is communicated with from export mouth 21a, realize dynamoelectric switching valve and produce different flows under different operating state, meet the demand that refrigerant flow regulates.
Three through hole 25a are circular arc distribution, and the center of circle of this circular arc is the center of rotation of slide block 25, when rotating to make slide block 25, through hole 25a can be communicated with export mouth 21a, and the distance of export mouth 21a and slide block 25 center of rotation equals the distance of through hole 25a and slide block 25 center of rotation.
Particularly, three through hole 25a arrange along described circular arc in turn according to circulation area size, and so, in slide block 25 rotation process, each through hole 25a can be communicated with export mouth 21a in turn according to circulation area size, is convenient to the switching of dynamoelectric switching valve between each working state.
It is also feasible for being appreciated that each through hole 25a disobeys that circulation area size arranges in turn, does not affect the demand that dynamoelectric switching valve controls refrigerant flow.
Particularly, three through hole 25a are uniformly distributed along described circular arc, are convenient to the control of the rotation angle of slide block 25 opposite valve seat 21.Wherein, the distance between each through hole 25a can be arranged according to slide block 25 single step rotation angle, is convenient to control, and separately, the distance between each through hole 25a should be guaranteed can close export mouth 21a in slide block 25 rotation process.
More specifically in scheme, three through hole 25a are all set to step circular hole, and on this basis, path section 25a-2 (being shown in Fig. 8 with Fig. 9) diameter of each step circular hole is different, and is all less than the diameter of export mouth 21a.Through hole 25a is set to step hole, can make up the dislocation of through hole 25a because machining error causes and export mouth 21a, guarantee that through hole 25a can be communicated with export mouth 21a, improves the reliability of product.
Be appreciated that, the diameter of the large footpath section 25a-1 (being shown in Fig. 8 and Fig. 9) of each step circular hole can close with the diameter compatible of export mouth 21a, be greater than or be slightly less than the diameter of export mouth 21a, do not affect the function of dynamoelectric switching valve throttling, in reality, can according to dependency structure, as the size of slide block 25, the layout etc. of through hole 25a is arranged.
Incorporated by reference to Fig. 9 and Figure 10, it illustrates slide block 25 opposite valve seat 21 when rotating, the structure that two through hole 25a coordinate with export mouth 21a, in Fig. 9, the diameter of the path section 25a-2 of through hole 25a is less than the path section 25a-2 of through hole 25a in Figure 10, and namely in Fig. 9, the refrigerant flow of working position residing for dynamoelectric switching valve is less than working position residing for dynamoelectric switching valve in Figure 10.
In this embodiment, the protuberance 252 of slide block 25 is set to fan-like structure, makes it have breach 25b, as shown in Figure 6.
Rotor part 24 drives in slide block 25 rotation process, protuberance 252 end face coordinates with valve seat 21 upper-end surface, export mouth 21a can be closed, or adjusting refrigerant flow rate, when breach 25b and valve seat 21 export mouth 21a position to the time in of corresponding export mouth 21a is in full-gear, and that is, now refrigerant flow reaches maximum value.
Below in conjunction with Figure 11 and Figure 12, illustrate dynamoelectric switching valve provided by the invention, compared with background technique, to the control action of refrigerant flow.
In Figure 11, valve seat to offer three export mouths.
As shown in FIG., when the working state of dynamoelectric switching valve is 0 pulse, export mouth B and export mouth D is in open mode, and export mouth C is in closed condition; During 16 pulse, export mouth B and export mouth D is in closed condition, and export mouth C is in open mode; During 32 pulse, export mouth B and export mouth C is in closed condition, and export mouth D is in open mode; During 48 pulse, export mouth B is in open mode, and export mouth C and export mouth D is in closed condition.
Known, because existing dynamoelectric switching valve only leans on the rotation of slide block opposite valve seat to realize the opening and closing function of export mouth on valve seat, so its flow curve is fixing.
In Figure 12, be respectively 0.22mm, 0.26mm and 0.3mm for the diameter of three through hole 25a on slide block 25.
Should be appreciated that it is only the concrete size exemplarily giving three through hole 25a here, the actual size can determining through hole 25a when arranging according to real needs.
As shown in FIG., when the working state of dynamoelectric switching valve is 0 pulse, export mouth 21a standard-sized sheet, corresponding flow is 100L/min; During 18 pulse, diameter is that the through hole 25a of 0.22mm is communicated with export mouth 21a, and corresponding flow is 5L/min; During 36 pulse, diameter is that the through hole 25a of 0.26mm is communicated with export mouth 21a, and corresponding flow is 7L/min; During 54 pulse, diameter is that the through hole 25a of 0.3mm is communicated with export mouth 21a, and corresponding flow is 9L/min.
Obviously, the present invention utilizes the export mouth 21a of the through hole 25a and valve seat 21 being arranged on different circulation area on slide block 25 to coordinate, realize dynamoelectric switching valve and produce different flow under different operating state, realize the function of Flow-rate adjustment, can the temperature of each warm area of fine adjustment refrigeration system (as refrigerator) more, control the flow of refrigeration agent, to reduce energy loss, reduce the energy consumption of refrigeration system.
The structure of slide block 25, except aforesaid way, also can adopt other structures.
As, the protuberance 252 of slide block 25 is also set to cylindrical-shaped structure, offers groove thereon, when this groove is in full-gear with export mouth 21a position to making export mouth 21a time corresponding.
And for example, slide block 25 is offered the intercommunicating pore that circulation area is not less than export mouth 21a, in slide block 25 rotation process, this intercommunicating pore can be communicated with export mouth 21a.Circulation area due to this intercommunicating pore is not less than export mouth 21a, so when both are communicated with, export mouth 21a is also in full-gear.
Be appreciated that, on the basis of above-mentioned each through hole 25a setting type, described intercommunicating pore and each through hole 25a are positioned on same circular arc.
Further, described intercommunicating pore also can be set to step hole, to eliminate the impact of machining error; Obviously, the circulation area of the minor diameter part of this step hole is not less than export mouth 21a.
For another example, slide block 25 is only provided with the protuberance 252 of a fan-like structure, in reality, also can be set to plural fan-shaped protuberance 252, each through hole 25a is located on different protuberances 252, and the breach formed between each protuberance 252 is as the structure opening export mouth 21a.
In addition, slide block 25 is provided with the different through hole 25a of three circulation areas, in reality, also can arrange the through hole 25a of the different circulation areas of other numbers such as two or four, can meet the user demand of refrigeration system.
In addition, if slide block 25 is directly connected with the live axle being plugged in rotatable parts 24, as shown in Figure 4, can the axis hole 25c (shown in Figure 7) coordinated with described live axle be set at the center of slide block 25.
If slide block 25 is connected indirectly with rotatable parts 24, be provided with intermediate connection structure between the two, as gear mechanism, can arrange, to be connected with intermediate connection structure in the circumference of the body 251 of slide block 25.
Certainly, needed for reality, other structures also can be set on slide block 25 to realize the connection with rotatable parts 24.
Above a kind of dynamoelectric switching valve provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a dynamoelectric switching valve, comprises the slide block (25) that valve seat (21) and sealing fit in described valve seat (21) upper end; Described slide block (25) can rotate relative to described valve seat (21), is located at the export mouth (21a) of described valve seat (21) with opening and closing; It is characterized in that, described export mouth (21a) is one; Described slide block (25) offers the through hole (25a) that circulation area is less than described export mouth (21a), in described slide block (25) rotation process, described through hole (25a) can be communicated with described export mouth (21a).
2. dynamoelectric switching valve according to claim 1, is characterized in that, described through hole (25a) is for multiple and circulation area different.
3. dynamoelectric switching valve according to claim 2, is characterized in that, in described slide block (25) rotation process, multiple described through hole (25a) can be communicated with described export mouth (21a) in turn according to circulation area size.
4. dynamoelectric switching valve according to claim 3, it is characterized in that, multiple described through hole (25a) distributes in circular arc, and the center of circle of described circular arc is the center of rotation of described slide block (25), described export mouth (21a) equals the distance of described through hole (25a) and described center of rotation with the distance of described center of rotation.
5. dynamoelectric switching valve according to claim 4, is characterized in that, multiple described through hole (25a) is uniformly distributed along described circular arc.
6. dynamoelectric switching valve according to claim 2, is characterized in that, each described through hole (25a) is all set to circular port, and described export mouth (21a) is circular port.
7. dynamoelectric switching valve according to claim 6, is characterized in that, each described through hole (25a) is all set to step hole; The diameter of the path section (25a-2) of each described step hole is different, and is all less than the diameter of described export mouth (21a).
8. the dynamoelectric switching valve according to any one of claim 1 to 7, it is characterized in that, described slide block (25) also has breach (25b), described breach (25b) is in full-gear with described export mouth (21a) position to export mouth (21a) described time corresponding.
9. the dynamoelectric switching valve according to any one of claim 1 to 7, it is characterized in that, described slide block (25) also offers the intercommunicating pore that circulation area is not less than described export mouth (21a), in described slide block (25) rotation process, described intercommunicating pore can be communicated with described export mouth (21a).
10. dynamoelectric switching valve according to claim 9, is characterized in that, described intercommunicating pore is step hole, and the circulation area of its minor diameter part is not less than described export mouth (21a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478617.4A CN105485400A (en) | 2014-09-18 | 2014-09-18 | Electric switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410478617.4A CN105485400A (en) | 2014-09-18 | 2014-09-18 | Electric switching valve |
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| CN105485400A true CN105485400A (en) | 2016-04-13 |
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| CN201410478617.4A Pending CN105485400A (en) | 2014-09-18 | 2014-09-18 | Electric switching valve |
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| CN108799558A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN108799532A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear and its sliding block |
| CN108800681A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Refrigerator refrigeration system |
| CN108800680A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Refrigerator refrigeration system |
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| CN110375081A (en) * | 2018-04-13 | 2019-10-25 | 浙江三花智能控制股份有限公司 | Valve gear and its valve block |
| WO2020029830A1 (en) * | 2018-08-07 | 2020-02-13 | 浙江三花智能控制股份有限公司 | Electric switch valve and valve block thereof |
| CN111380297A (en) * | 2018-12-31 | 2020-07-07 | 浙江三花智能控制股份有限公司 | Refrigeration cycle device |
| CN111379883A (en) * | 2018-12-31 | 2020-07-07 | 浙江三花智能控制股份有限公司 | Electric switching valve |
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| CN108799528B (en) * | 2017-04-28 | 2020-01-03 | 浙江三花智能控制股份有限公司 | Valve device |
| CN108799534A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN108800681A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Refrigerator refrigeration system |
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| CN108799533A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
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| CN108799557A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN108799558A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN108799534B (en) * | 2017-04-28 | 2019-09-27 | 浙江三花智能控制股份有限公司 | Valve gear |
| EP3617615A4 (en) * | 2017-04-28 | 2021-01-20 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Valve device and refrigerator refrigerating system having the valve device |
| CN108799532B (en) * | 2017-04-28 | 2020-12-01 | 浙江三花智能控制股份有限公司 | Valve device |
| CN108799532A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear and its sliding block |
| CN108799557B (en) * | 2017-04-28 | 2020-02-14 | 浙江三花智能控制股份有限公司 | Valve device |
| CN108799533B (en) * | 2017-04-28 | 2020-02-14 | 浙江三花智能控制股份有限公司 | Valve device |
| CN110030753B (en) * | 2018-01-11 | 2021-04-13 | 浙江三花智能控制股份有限公司 | Refrigeration system |
| CN110030753A (en) * | 2018-01-11 | 2019-07-19 | 浙江三花智能控制股份有限公司 | Refrigeration system |
| CN110030405A (en) * | 2018-01-11 | 2019-07-19 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN110375081A (en) * | 2018-04-13 | 2019-10-25 | 浙江三花智能控制股份有限公司 | Valve gear and its valve block |
| WO2020029830A1 (en) * | 2018-08-07 | 2020-02-13 | 浙江三花智能控制股份有限公司 | Electric switch valve and valve block thereof |
| CN110822130A (en) * | 2018-08-07 | 2020-02-21 | 浙江三花智能控制股份有限公司 | Electric switching valve and valve block thereof |
| CN111380297A (en) * | 2018-12-31 | 2020-07-07 | 浙江三花智能控制股份有限公司 | Refrigeration cycle device |
| CN111379883A (en) * | 2018-12-31 | 2020-07-07 | 浙江三花智能控制股份有限公司 | Electric switching valve |
| CN111379883B (en) * | 2018-12-31 | 2024-04-12 | 浙江三花智能控制股份有限公司 | Electric switching valve |
| CN111380297B (en) * | 2018-12-31 | 2023-04-07 | 浙江三花智能控制股份有限公司 | Refrigeration cycle device |
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Address after: 312500 Xinchang, Zhejiang Qixing street under the Liquan Applicant after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant before: Zhejiang Sanhua Co., Ltd. |
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Application publication date: 20160413 |