CN110500823A - Combination valve and its control method and refrigeration system - Google Patents
Combination valve and its control method and refrigeration system Download PDFInfo
- Publication number
- CN110500823A CN110500823A CN201910810061.7A CN201910810061A CN110500823A CN 110500823 A CN110500823 A CN 110500823A CN 201910810061 A CN201910810061 A CN 201910810061A CN 110500823 A CN110500823 A CN 110500823A
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- CN
- China
- Prior art keywords
- connector
- valve
- coil
- combination valve
- combination
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of Refrigeration Techniques, more particularly to combination valve and its control method and refrigeration system.A kind of combination valve, including throttle valve and block valve, the throttle valve includes first coil and the first valve body, the block valve includes the second coil and the second valve body, the first coil and second coil are separately mounted on first valve body and the second valve body, the first coil and second coil are electrically connected with client respectively, the combination valve further includes adapter, one end of the adapter is electrically connected with the first coil and the second coil respectively, the other end and the client are electrically connected, the first coil and second coils from parallel connection of coils are in the adapter.The present invention has the advantages that simplifying the circuit system of client and optimizing control logic, client is facilitated to use.
Description
Technical field
The present invention relates to a kind of Refrigeration Techniques, more particularly to combination valve and its control method and refrigeration system.
Background technique
Combination valve is composed of throttle valve and block valve, is applied in refrigeration system, is especially used in pipeline and is needed to cut
In disconnected system, when restricting element power loss leads to not close, pipeline Truncation is realized by truncation part.
In existing technology, client needs two plug ports, and one patches with first coil, another is with second
Coil patches, when need to control restricting element when, to by one of plug port send instruction, when need control be truncated
When part, is sent and instructed by another plug port, user's using trouble, and circuit system and control logic are complex.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of electric expansion valve, technical solution is as follows:
A kind of combination valve, including throttle valve and block valve, the throttle valve include first coil and the first valve body, and described section
Disconnected valve includes the second coil and the second valve body, the first coil and second coil be separately mounted to first valve body and
On second valve body, the first coil and second coil are electrically connected with client respectively, and the combination valve further includes turning
Fitting, one end of the adapter are electrically connected with the first coil and the second coil respectively, the other end and the client
It is electrically connected, the first coil and second coils from parallel connection of coils are in the adapter.
It is understood that the adapter is electrically connected with the first coil and second coil simultaneously, client
End only needs a plug port, simplifies the circuit system of client.
The adapter includes at least the first connector, the second connector and third and patches in one of the embodiments,
Part, one end of first connector are electrically connected with the third connector and the second connector respectively, and described second patches
One end of part and second coil are electrically connected, the one end of the third connector far from first connector and the visitor
Family end is electrically connected.
It is electrically connected it is to be appreciated that being realized by first connector with the first coil, passes through described second
Connector is realized to be electrically connected with second coil, first connector and the second connector route converge after again with
The third connector is electrically connected, and is integrated into a port to client, client is facilitated to use.
The combination valve further includes control unit in one of the embodiments, and the control unit is mounted on the First Line
On circle, the control unit and first connector are electrically connected.
It is understood that the control unit controls the aperture of the throttle valve, while controlling the unlatching of the block valve
And/or it closes.
The control unit is equipped with the first butt end in one of the embodiments, and second coil is equipped with the second docking
End, first butt end are docked with first connector, and second butt end is docked with second connector.
First valve body and second valve body setting are integrated in one of the embodiments,.
The restricting element includes the first core assembly in one of the embodiments, and the truncation part further includes second
Core assembly, first core assembly are mounted in first valve body, and second core assembly is mounted on described second
In valve body.
It is to be appreciated that pipeline is truncated using the block valve, dielectric leakage is prevented.
The first connector is offered on first valve body in one of the embodiments, is opened on second valve body 22
Equipped with the second connector, first core assembly and second core assembly control first connector and described second
The connection and/or partition of connector.
The combination valve further includes casing, described sleeve pipe and the fixed company of first valve body in one of the embodiments,
It connects, the first coil is sleeved in described sleeve pipe.
It is to be appreciated that described sleeve pipe is isolated by external environment with first core assembly, dielectric leakage is avoided.
The present invention also provides following technical solutions:
A kind of combination valve control method, for controlling combinations of the above valve, this method comprises:
Receive the control signal that client issues；And
According to control signal, the first coil (11) are made to be powered by the adapter (30), to control the throttling
The aperture of valve (10)；
And/or according to the control signal, second coil (21) is set to be powered by the adapter (30), with
Control the block valve (20) unlatching/closing.
It is to be appreciated that when client needs the first core assembly or the movement of the second core assembly of control combination valve,
Only a route is needed to send instruction to the combination valve, simplifies circuit system, while simplifying the control logic of client.
The present invention also provides following technical solutions:
The refrigeration system includes compressor, condenser, evaporator and combination valve, and the combination valve is mounted on the condensation
Between device and the evaporator, the entrance of the compressor is connect with the evaporator, and outlet is connect with the condenser, described
Combination valve uses combinations of the above valve.
Compared with prior art, a kind of combination valve provided by the invention and its control method and refrigeration system, pass through setting
Adapter realizes the electric connection with first coil, the second coil and client, and client only needs a plug port, i.e.,
First coil and the second coil can be connected, the circuit system of client is simplified, client is facilitated to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of combination valve provided by the invention；
Fig. 2 is the structural schematic diagram of the adapter of combination valve provided by the invention；
Fig. 3 is the structural schematic diagram of throttle valve and block valve in combination valve provided by the invention.
Each symbol indicates that meaning is as follows in figure:
100, combination valve；10, throttle valve；11, first coil；11a, the first plug wire portion；12, the first valve body；12a, first
Connector；20, block valve；21, the second coil；21a, the second butt end；21b, the second plug wire portion；22, the second valve body；22a,
Two connectors；30, adapter；31, the first connector；32, the second connector；33, third connector；40, control unit；41,
One butt end；50, casing.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that it can be directly on another component when component is referred to as " being installed in " another component
Or there may also be components placed in the middle.When a component is considered as " being set to " another component, it, which can be, is directly set
Set on another component or may be simultaneously present component placed in the middle.When a component is considered as " being fixed on " another group
Part, it, which can be, is directly anchored on another component or may be simultaneously present component placed in the middle.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " it include one or more phases
Any and all combinations of the listed item of pass.
A kind of refrigeration system (not shown) provided by the invention includes compressor (not shown), condenser (not shown), steams
Device (not shown) and combination valve 100 are sent out, combination valve 100 has the function of throttling and be truncated that compressor is mounted on going out for evaporator
Mouthful and the entrance of condenser between, combination valve 100 is mounted on the outlet of condenser and the entrance of evaporator, compressor, condenser,
Evaporator, combination valve 100 form circulation loop.
In the present embodiment, refrigeration system is used in carbon dioxide vehicle air conditioner, when vehicle is because of accident power loss, by
Lower in the pipeline of low-pressure side and the bearing capacity of device, the pressure carbon dioxide of low-pressure side increases after refrigeration system is shut down, and leads
Low-pressure side pipelines from bursting is caused, carbon dioxide is leaked in compartment by indoor air duct, and passenger is caused to suffocate.Combination valve 100 is cut
Disconnected function can open on high-tension side medium carbon dioxide and low-pressure side partition certainly, and in other embodiments, the refrigeration system is also
It can be used for other occasions for needing while throttling and being truncated.
It is to be understood that high-pressure side is the pipeline between the entrance for exporting to combination valve 100 of compressor, low-pressure side is
The pipeline of combination valve 100 exported between the entrance of compressor.
As shown in Figure 1, combination valve 100 includes throttle valve 10 and block valve 20, throttle valve 10 and block valve 20 are designed as one
Body, combination valve 100 meet the function of throttling and the truncation of the refrigerant of refrigeration system simultaneously.
Specifically, throttle valve 10 includes first coil 11 and the first valve body 12, and first coil 11 is mounted on the first valve body 12
On, first coil 11 and client are electrically connected.Block valve 20 includes the second coil 21 and the second valve body 22, the second coil 21 peace
On the second valve body 22, the second coil 21 is electrically connected with client.
Preferably, the first valve body 12 and the second valve body 22 are an integral structure.
Further, first coil 11 is equipped with the first plug wire portion 11a, and the second coil 21 is equipped with the second plug wire portion 21b,
Client is electrically connected by the first plug wire portion 11a and the second plug wire portion 21b and throttle valve 10 and block valve 20.
Fig. 3 is referred to, the first connector 12a is offered on the first valve body 12, offers the second connection on the second valve body 22
Mouthful 22a, the connection of the first core assembly and the second core assembly control the first connector 12a and the second connector 22a and/or every
It is disconnected.
Specifically, the first connector 12a is outlet, and the second connector 22a is import, and medium is flowed from the second connector 22a
Enter, is flowed out from the first connector 12a.
Further, combination valve 100 further includes adapter 30, one end of adapter 30 respectively with first coil 11 and second
Coil 21 is electrically connected, and the other end and client are electrically connected, that is, first coil 11 and the second coil 21 are parallel to adapter
30.It is understood that by setting adapter 30, so that first coil 11 electrically connects with client with the second coil 21
It connects；In this way, client only needs a plug port, the circuit system of client is simplified.
Referring to Figure 1 and Fig. 2, adapter 30 include at least the first connector 31, the second connector 32 and third connector
33, the butt end of the first connector 31 and third connector 33 are electrically connected spigot, the second connector 32 to spigot with
Second coil 21 is electrically connected, and butt end and third connector 33 are electrically connected spigot, third connector 33 to spigot
It is electrically connected respectively with the butt end of the first connector 31 and the butt end of the second connector 32, butt end electrically connects with client
It connects, the butt end of first coil 11 and the second coil 21 is integrated into a butt end, Neng Goufang by three connectors of setting
Just client uses.In the present embodiment, three connectors are set, certainly, in other embodiments, according to actual needs, can be set
Set the connector of other numbers.
Specifically, third connector 33 and the first connector 31 include at least four terminals, and the second connector 32 at least wraps
Including two terminals, wherein three terminals are corresponding is electrically connected for wherein three terminals of third connector 33 and the first connector 31,
Two terminals of the second connector 32 respectively correspond and its of the two of them terminal of the second connector 32 and third connector 33
In terminal be electrically connected.
In the present embodiment, the 1# terminal Yu positive pole of 33 butt end of third connector are electrically connected, 3# terminal and biography
Defeated signal communication connection, 4# terminal and power cathode are electrically connected, 1# terminal, 3# terminal, 4# of the third connector 33 to spigot
Terminal is electrically connected with the 1# terminal, 3# terminal, 4# terminal of the butt end of the first connector 31 respectively, the docking of the second connector 32
The 2# terminal of 31 butt end of 1# terminal and the first connector at end is electrically connected, and the 2# terminal of 32 butt end of the second connector passes through
And line terminals (not shown) is electrical with 4# terminal of the third connector 33 to 31 butt end 4# and the first connector of spigot respectively
Connection.When needing to control the unlatching of block valve 20, the 2# terminal of the first connector 31 and the 1# terminal of the second connector 32 are controlled
The connection of the route of connection disconnects the 2# terminal and the second connector 32 of the first connector 31 when needing to close block valve 20
1# terminal connection route.Certainly, in other embodiments, third connector 33, the second connector 32 and the first connector
The quantity of 31 terminals can be other numbers, and the electric connection sequence of terminal can also be adjusted as desired, the second connector 32
The butt end to spigot and the first connector 31 of doubling terminal compression joint third connector 33 can not also be passed through, directly electricity can be passed through
Property connection or other modes be electrically connected.
It is to be understood that the butt end of third connector 33 refers to the one end being electrically connected with client, third is connect
Plug-in unit 33 refers to the one end being electrically connected with the second connector 32 and the first connector 31 to spigot, the first connector 31 and
The butt end of second connector 32 refers to the one end being electrically connected with third connector 33 to spigot, first connector 31 and
Second connector 32 refers to the one end being electrically connected with throttle valve 10 and block valve 20 to spigot.
Referring to Figure 1 and Fig. 3, combination valve 100 further include control unit 40, and control unit 40 is installed on the first plug wire portion 11a, control
Portion 40 processed and the first connector 31 are electrically connected, and control unit 40 receives the signal of client, control the aperture of throttle valve 10, and are worked as
Signal is sent to block valve 20, controls the unlatching and/or closing of block valve 20.
In the present embodiment, control unit 40 is communicatively coupled by LIN line and LIN bus, transmits signal as LIN letter
Number, certainly, in other embodiments, PWM also can be used or other modes carry out signal transmission.
Further, control unit 40 be equipped with the first butt end 41, the second coil 21 be equipped with the second butt end 21a, first pair
It connects end 41 to dock spigot with the first connector 31, the second butt end 21a docks spigot with the second connector 32.
Throttle valve 10 further includes the first core assembly (not shown), and block valve 20 further includes that (figure is not for the second core assembly
Show), the first core assembly is mounted in the first valve body 12, and the second core assembly is mounted in the second valve body 22, first coil 11
The movement of the first core assembly is controlled, the second coil 21 controls the movement of the second core assembly.
Combination valve 100 further includes casing 50, and casing 50 is fixedly connected with the first valve body 12, and first coil 11 is sleeved on casing
On 50, casing 50 is isolated by external environment with the first core assembly, avoids dielectric leakage.
Combination valve 100 further includes conduit (not shown), and conduit is fixedly connected with the second valve body 22, and the second coil 21 is mounted on
On conduit, core assembly a part is mounted in conduit, and a part is mounted in the second valve body 22, and conduit is by external environment and the
The isolation of one core assembly, avoids dielectric leakage.
The present invention also provides a kind of combination valve control method, which utilizes a kind of combination valve 100, combination valve 100
Including throttle valve 10, block valve 20 and adapter 30, throttle valve 10 includes first coil 11 and the first core assembly, block valve 20
Including the second coil 21 and the second core assembly, adapter 30 includes that the first connector 31, the second connector 32 and third patch
Part 33, this method comprises:
When systems are functioning properly, according to the needs of refrigeration system, client is patched by third connector 33 and first
Part 31 sends control signal to control unit 40, and control first coil 11 generates magnetic field, thus control the first core assembly movement, from
And control the aperture of throttle valve 10；
Control unit 40 controls the second coil 21 by the second connector 32 and obtains electric or power loss, and the second coil 21 is generated or lost
Magnetic force attracts the second core assembly to move and move to far from the direction of second interface, or discharges the second core assembly to close
The direction of second interface moves, and opens or is truncated to control block valve 20；
When refrigeration system power loss, 40 power loss of control unit, thus 21 power loss of the second coil, the second coil 21 discharges the second spool
Component, block valve 20 are closed.
Herein, related, throttle valve 10, block valve 20, adapter 30, first coil 11, the first core assembly, the second line
The 21, second core assembly of circle, the first connector 31, the second connector 32 and third connector 33 arrangement please refer to it is above-mentioned
Related content, details are not described herein again.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of combination valve, including throttle valve (10) and block valve (20), the throttle valve (10) include first coil (11) and
First valve body (12), the block valve (20) include the second coil (21) and the second valve body 22, the first coil (11) and institute
The second coil (21) is stated to be separately mounted on first valve body (12) and the second valve body (22), which is characterized in that
The combination valve further includes adapter (30), one end of the adapter (30) respectively with the first coil (11) and institute
The second coil (21) electric connection is stated, the other end and the client are electrically connected, the first coil (11) and described second
Coil (21) is parallel to the adapter (30).
2. combination valve according to claim 1, which is characterized in that the adapter (30) includes at least the first connector
(31), one end of the second connector (32) and third connector (33), first connector (31) connects with the third respectively
Plug-in unit (33) and the second connector (32) are electrically connected, one end of second connector (32) and second coil (21) electricity
Property connection, the third connector (33) far from first connector (31) one end and the client be electrically connected.
3. combination valve according to claim 2, which is characterized in that the combination valve further includes control unit (40), the control
Portion (40) is mounted on the first coil (11), and the control unit (40) and first connector (31) are electrically connected.
4. combination valve according to claim 3, which is characterized in that the control unit (40) is equipped with the first butt end (41), institute
The second coil (21) are stated equipped with the second butt end (21a), first butt end (41) is docked with first connector (31),
Second butt end (21a) is docked with second connector (32).
5. combination valve according to claim 1, which is characterized in that first valve body (12) and second valve body (22) are set
It sets as one.
6. combination valve according to claim 1, which is characterized in that the throttle valve (10) includes the first core assembly, described
Block valve (20) further includes the second core assembly, and first core assembly is mounted in first valve body (12), and described the
Two core assemblies are mounted in second valve body (22).
7. combination valve according to claim 6, which is characterized in that offer the first connector on first valve body (12)
(12a) is offered the second connector (22a) on second valve body 22, first core assembly and the second spool group
Part controls the connection and/or partition of first connector (12a) and second connector (22a).
8. combination valve according to claim 1, which is characterized in that the combination valve further includes casing (50), described sleeve pipe
(50) it is fixedly connected with first valve body (12), the first coil (11) is sleeved on described sleeve pipe (50).
9. a kind of combination valve control method, for controlling combination valve described in claim 1-8 any one, which is characterized in that should
Method includes:
Receive the control signal that client issues；And
According to control signal, the first coil (11) are made to be powered by the adapter (30), to control the throttle valve
(10) aperture；
And/or according to the control signal, second coil (21) is set to be powered by the adapter (30), with control
Block valve (20) unlatching/closing.
10. a kind of refrigeration system, it is characterised in that: the refrigeration system includes compressor, condenser, evaporator and combination valve,
The combination valve is mounted between the condenser and the evaporator, and the entrance of the compressor is connect with the evaporator,
Outlet is connect with the condenser, and the combination valve is using the combination valve as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810061.7A CN110500823A (en) | 2019-08-29 | 2019-08-29 | Combination valve and its control method and refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810061.7A CN110500823A (en) | 2019-08-29 | 2019-08-29 | Combination valve and its control method and refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110500823A true CN110500823A (en) | 2019-11-26 |
Family
ID=68590514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910810061.7A Pending CN110500823A (en) | 2019-08-29 | 2019-08-29 | Combination valve and its control method and refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110500823A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363554A (en) * | 2007-08-09 | 2009-02-11 | 株式会社鹭宫制作所 | Normal-open electromagnetic valve and air conditioner |
| CN104728483A (en) * | 2013-12-20 | 2015-06-24 | 杭州三花研究院有限公司 | Flow control valve and control method thereof and refrigeration system |
| CN106322869A (en) * | 2015-06-24 | 2017-01-11 | 浙江三花汽车零部件有限公司 | Refrigerant control device and assembling method for refrigerant control device |
| CN106440461A (en) * | 2016-11-03 | 2017-02-22 | 青岛海信日立空调系统有限公司 | Air conditioner circulating system, refrigerant filling control method and air conditioner |
-
2019
- 2019-08-29 CN CN201910810061.7A patent/CN110500823A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363554A (en) * | 2007-08-09 | 2009-02-11 | 株式会社鹭宫制作所 | Normal-open electromagnetic valve and air conditioner |
| CN104728483A (en) * | 2013-12-20 | 2015-06-24 | 杭州三花研究院有限公司 | Flow control valve and control method thereof and refrigeration system |
| CN106322869A (en) * | 2015-06-24 | 2017-01-11 | 浙江三花汽车零部件有限公司 | Refrigerant control device and assembling method for refrigerant control device |
| CN106440461A (en) * | 2016-11-03 | 2017-02-22 | 青岛海信日立空调系统有限公司 | Air conditioner circulating system, refrigerant filling control method and air conditioner |
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