CN108954991A - A kind of electromagnetism heating power expansion valve - Google Patents
A kind of electromagnetism heating power expansion valve Download PDFInfo
- Publication number
- CN108954991A CN108954991A CN201811047399.3A CN201811047399A CN108954991A CN 108954991 A CN108954991 A CN 108954991A CN 201811047399 A CN201811047399 A CN 201811047399A CN 108954991 A CN108954991 A CN 108954991A
- Authority
- CN
- China
- Prior art keywords
- copper core
- valve body
- iron core
- solenoid valve
- spring
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 60
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 36
- 239000008358 core component Substances 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
Abstract
A kind of electromagnetism heating power expansion valve, including valve body, power head, O-ring, top stem casing, thimble, pearl base member, damping folder, spring, adjustment cap, solenoid valve, gasket, screw；It is provided with positioning pin on the electromagnetic coil, location hole is provided on valve body, the positioning pin of electromagnetic coil is placed in the positioning hole of valve body, prevents electromagnetic coil from rotating；Solenoid valve balance hole is provided in the copper core, quick closedown when solenoid valve can be made to need to close；It is provided with pressure compensation opening in the dynamic iron core, the central axis of pressure compensation opening and dynamic iron core is not parallel, is in ㄣ shape, when needing solenoid valve to open, can slow down the pressure balance speed of dynamic iron core or more, open solenoid valve slowly, protect compressor not by liquid hammer.
Description
Technical field
The present invention relates to field of automobile air conditioner is related to, more specifically, being related to a kind of expansion valve.
Background technique
Expansion valve is the important component of formed automobile air-conditioning refrigeration plant, is one of four basic equipments in refrigeration system,
Expansion valve is the liquid refrigerant of low-temp low-pressure the high temperature and pressure liquid refrigerant reducing pressure by regulating flow for carrying out condenser, and according to steaming
It sends out device outlet superheat degree and adjusts the refrigerant flow for being sent into evaporator.Expansion valve is by power to the control principle of refrigerant flow
Head experiences the evaporator outlet degree of superheat, drives valve opening by being saturated pressure difference caused by refrigerant in superheated refrigerant and power head
Opening and closing makes evaporator play maximum efficiency so that refrigerants more as far as possible be made to enter evaporator.
Heating power expansion valve only plays a part of to adjust refrigerant pressure and flow, when system is shut down or powered off suddenly, system
In refrigerant can be continued through due to pressure difference expansion valve flow into evaporator, cause liquid level excessively high, can be to compression when turning back on
Machine generates liquid hammer, damages to system.Electromagnetism heating power expansion valve can automatically cut off refrigerant flowing in shutdown or power-off,
There is defencive function to refrigeration system.Although the electromagnetism heating power expansion valve of the prior art is using plane anti-slip rubber gasket, screw fastening
The measures such as solid glue water prevent electromagnetic coil from rotating, but electromagnetic coil cannot be entirely prevented to rotate, coil connecting line is easily caused to reverse,
It falls off, influences the normal use of electromagnetic expanding valve.
Summary of the invention
For overcome the deficiencies in the prior art, it is swollen to provide a kind of electromagnetism heating power that coil can be entirely prevented to rotate by the present invention
Swollen valve.
The technical solution adopted by the present invention to solve the technical problems is: a kind of electromagnetism heating power expansion valve, including valve body, dynamic
Power head, O-ring, top stem casing, thimble, pearl base member, damping folder, spring, adjustment cap, solenoid valve, gasket, screw；The valve body
It is connected through a screw thread between power head, is sealed by O-ring；The mandril is set below valve body intermediate power head；Institute
Thimble is stated to be arranged below valve body intermediate power head and pass through top stem casing and centre hole；It is set between thimble and valve body below top stem casing
It is equipped with O-ring；The pearl base member is arranged below thimble；Damping folder and spring are provided with below the pearl base member, with tune
Save the fixed support of cap；It is connected through a screw thread between the adjustment cap and valve body, is sealed by O-ring；Under the power head includes
Lid, upper cover, diaphragm, top plate steel ball, the lower cover, diaphragm pass through argon arc welding rotating welding fixing seal between upper cover three；Film
It is filled with temperature sensing medium between piece and upper cover, by upper cover and steel ball welded seal, temperature sensing medium is prevented to be lost；The solenoid valve
It is threaded on valve body, is sealed between valve body and solenoid valve by O-ring；The solenoid valve includes spool and electromagnetic coil,
It is corresponding it is characterized by: be provided with positioning pin on the electromagnetic coil, it is provided with location hole on valve body, when installation, electromagnetic wire
The positioning pin of circle is put into the positioning hole of valve body, prevents from relatively rotating between electromagnetic coil and valve body；Between electromagnetic coil and spool
It is fixed by screw and gasket.
As an improvement, the spool includes tube base part, dynamic iron core, static iron core, the first spring, copper core component, the second bullet
Spring and copper core gasket；The tube base part includes tube socket and plunger tube, and tube socket and plunger tube are made by 304 stainless steels, tube socket
It fixes and seals by laser welding between plunger tube；Static iron core, are sequentially placed in the plunger tube cavity from top to bottom
One spring, dynamic iron core, copper core component, second spring and copper core gasket；The static iron core is made by JL-31B electromagnetism stainless steel, quiet
It fixes and seals by laser welding between iron core and plunger tube；The dynamic iron core is made by JL-31B electromagnetism stainless steel, moves iron
Core bottom is provided with conical sealing face；The copper core component includes copper core and copper core sealing element, copper core and copper core sealing element it
Between by riveting sealing fix；The copper core sealing element is provided with upper seal support, and upper seal support is arc surface, upper seal support and dynamic
The conical sealing face of mandrel bottom partners sealing pair；The lower part of the copper core sealing element is electromagnetism valve sealing surface, corresponding
, it is provided with electromagnetism valve base on the valve body, electromagnetism valve sealing surface and electromagnetism valve base partner sealing pair；The copper core
Sealing element is made of PTFE material, increases the service life of solenoid valve；The second spring is arranged below copper core, and second
Spring is tower-shaped spring；Below the copper core gasket setting second spring, copper core gasket is made of brass material, copper core gasket
It is fixed between tube base part by cross spot welding；It is provided with solenoid valve balance hole in the copper core, solenoid valve can required
When closing, copper core component two-way pressure balance by the spring force of the first spring and the weight of dynamic iron core, closes solenoid valve quickly
It closes；It is provided with pressure compensation opening in the dynamic iron core, it is in ㄣ shape that the central axis of pressure compensation opening and dynamic iron core is not parallel, can be with
When needing solenoid valve to open, slows down the pressure balance speed of dynamic iron core or more, open solenoid valve slowly, protect compressor
Not by liquid hammer.
Compared with the prior art, the advantages of the present invention are as follows: it is provided with positioning pin on the electromagnetic coil, is arranged on valve body
There is location hole, the positioning pin of electromagnetic coil is placed in the positioning hole of valve body, prevents from relatively rotating between electromagnetic coil and valve body；Institute
It states and is provided with solenoid valve balance hole in copper core, it can be when requiring solenoid valve to close, copper core component two-way pressure balance, by the
The spring force of one spring and the gravity of dynamic iron core, make solenoid valve quick closedown；It is provided with pressure compensation opening in the dynamic iron core, presses
The central axis of dynamic balance hole and dynamic iron core is not parallel, is in ㄣ shape, can slow down dynamic iron core or more when needing solenoid valve to open
Pressure balance speed, opens solenoid valve slowly, protects compressor not by liquid hammer.
Detailed description of the invention
Fig. 1 is structure chart of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structure chart of power head of the present invention；
Fig. 4 is the top view of valve body described in Fig. 1；
Fig. 5 is the structure chart of electromagnetic coil of the present invention；
Fig. 6 is the structure chart of spool of the present invention；
Fig. 7 is the structure chart of tube base part of the present invention；
Fig. 8 is the structure chart of copper core component of the present invention；
Fig. 9 is the structure chart of dynamic iron core of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
A kind of electromagnetism heating power expansion valve as described in Figure, including it is valve body 1, power head 2, O-ring 3, top stem casing 4, thimble 5, O-shaped
Circle 6, pearl base member 7, damping folder 8, spring 9, O-ring 10, adjustment cap 11, O-ring 12, solenoid valve 13, gasket 14, screw 15；
It is connected through a screw thread between the valve body 1 and power head 2, is sealed by O-ring 3；The top stem casing 4 is arranged among valve body 1
2 lower section of power head；The thimble 5 is arranged below 1 intermediate power head 2 of valve body and passes through top stem casing 4；4 lower section thimble 5 of top stem casing
O-ring 6 is provided between valve body 1；The pearl base member 7 is arranged below thimble 5；It is provided with below the pearl base member 7
Damping folder 8 and spring 9 are supported with adjustment cap 11 is fixed；It is connected through a screw thread between the adjustment cap 11 and valve body 1, by O-shaped
10 sealing of circle；The power head 2 includes lower cover 21, upper cover 22, diaphragm 23, steel ball 24, the lower cover 21, diaphragm 23, upper cover 22
Pass through argon arc welding rotating welding fixing seal between three；It is filled with temperature sensing medium between diaphragm 23 and upper cover 22, passes through upper cover
22 with 24 welded seal of steel ball, prevent temperature sensing medium to be lost；The solenoid valve 13 is threaded on valve body 1, valve body 1 and electromagnetism
It is sealed between valve 13 by O-ring 12；The solenoid valve 13 includes spool 131 and electromagnetic coil 132, it is characterised in that: described
Positioning pin 133 is provided on electromagnetic coil 132, it is corresponding, it is provided with location hole 17 on valve body 1, when installation, electromagnetic coil 132
Positioning pin 133 be put into the location hole 17 of valve body 1, prevent from relatively rotating between electromagnetic coil 132 and valve body 1；Electromagnetic coil 132
It is fixed by screw 15 and gasket 14 between spool 131.The spool 131 includes tube base part 134, dynamic iron core 135, quiet iron
Core 136, the first spring 137, copper core component 138, second spring 139 and copper core gasket 140；The tube base part 134 includes pipe
Seat 141 and plunger tube 142, tube socket 141 and plunger tube 142 are made by 304 stainless steels, are led between tube socket 141 and plunger tube 142
Laser welding is crossed to fix and seal；It is sequentially placed static iron core 136, the first spring from top to bottom in 142 cavity of plunger tube
137, dynamic iron core 135, copper core component 138, second spring 139 and copper core gasket 140；The static iron core 136 is by JL-31B electromagnetism
Stainless steel production, is fixed and is sealed by laser welding between static iron core 136 and plunger tube 142；The dynamic iron core 135 is by JL-
The production of 31B electromagnetism stainless steel, 135 bottom of dynamic iron core is provided with conical sealing face 147；The copper core component 138 includes copper core
143 and copper core sealing element 144, it is fixed between copper core 143 and copper core sealing element 144 by riveting sealing；The copper core sealing element
144 are provided with upper seal support 145, and upper seal support 145 is arc surface, and upper seal support 145 and the cone of 135 bottom of dynamic iron core are close
Cover 147 partners sealing pair；The lower part of the copper core sealing element 144 is electromagnetism valve sealing surface 149, corresponding, the valve
It is provided with electromagnetism valve base 16 on body, electromagnetism valve sealing surface 149 and electromagnetism valve base 16 partner sealing pair；The copper core is close
Sealing 144 is made of PTFE material, can increase the service life of solenoid valve；The second spring 139 is arranged in copper core 143
Lower section, second spring 139 are tower-shaped spring；139 lower section of second spring is arranged in the copper core gasket 140, and copper core gasket 140 uses
Brass material production, is fixed between copper core gasket 140 and tube base part 134 by cross spot welding；It is provided in the copper core 143
Solenoid valve balance hole 146, can be when solenoid valve needs to close, 138 two-way pressure of copper core component balance, by the first spring
137 spring force and the weight of dynamic iron core 135, make solenoid valve quick closedown；Pressure compensation opening is provided in the dynamic iron core 135
148, pressure compensation opening 148 and the central axis of dynamic iron core 135 are not parallel, are in ㄣ shape, can slow down when needing solenoid valve to open
The pressure balance speed of about 135 dynamic iron core, opens solenoid valve slowly, protects compressor not by liquid hammer.
Compared with the prior art, the advantages of the present invention are as follows: it is provided with positioning pin on the electromagnetic coil, is arranged on valve body
There is location hole, the positioning pin of electromagnetic coil is placed in the positioning hole of valve body, prevents from relatively rotating between electromagnetic coil and valve body；Institute
It states and is provided with solenoid valve balance hole in copper core, it can be when requiring solenoid valve to close, copper core component two-way pressure balance, by the
The spring force of one spring and the gravity of dynamic iron core, make solenoid valve quick closedown；It is provided with pressure compensation opening in the dynamic iron core, presses
The central axis of dynamic balance hole and dynamic iron core is not parallel, is in ㄣ shape, can slow down dynamic iron core or more when needing solenoid valve to open
Pressure balance speed, opens solenoid valve slowly, protects compressor not by liquid hammer.
Claims (1)
1. a kind of electromagnetism heating power expansion valve, including valve body, power head, O-ring, top stem casing, thimble, pearl base member, damping folder, bullet
Spring, adjustment cap, solenoid valve, gasket, screw；It is connected through a screw thread between the valve body and power head, is sealed by O-ring；Institute
Mandril is stated to be set below valve body intermediate power head；The thimble is arranged below valve body intermediate power head and passes through top stem casing
And centre hole；O-ring is provided between thimble and valve body below top stem casing；The pearl base member is arranged below thimble；It is described
It is provided with damping folder and spring below pearl base member, fixes support with adjustment cap；Pass through screw thread between the adjustment cap and valve body
Connection, is sealed by O-ring；The power head includes lower cover, upper cover, diaphragm, top plate steel ball, the lower cover, diaphragm, upper cover three
Pass through argon arc welding rotating welding fixing seal between person；It is filled with temperature sensing medium between diaphragm and upper cover, passes through upper cover and steel ball
Welded seal prevents temperature sensing medium to be lost；The solenoid valve is threaded on valve body, by O-shaped between valve body and solenoid valve
Circle sealing；The solenoid valve includes spool and electromagnetic coil, it is characterised in that: positioning pin is provided on the electromagnetic coil, it is right
It answers, is provided with location hole on valve body, when installation, the positioning pin of electromagnetic coil is put into the positioning hole of valve body, prevents electromagnetic wire
It is relatively rotated between circle and valve body；It is fixed between electromagnetic coil and spool by screw and gasket；
The spool includes tube base part, dynamic iron core, static iron core, the first spring, copper core component, second spring and copper core gasket；
The tube base part includes tube socket and plunger tube, and tube socket and plunger tube are made by 304 stainless steels, is led between tube socket and plunger tube
Laser welding is crossed to fix and seal；Be sequentially placed from top to bottom in the plunger tube cavity static iron core, the first spring, dynamic iron core,
Copper core component, second spring and copper core gasket；The static iron core is made by JL-31B electromagnetism stainless steel, static iron core and plunger tube it
Between fix and seal by laser welding；The dynamic iron core is made by JL-31B electromagnetism stainless steel, and dynamic iron core bottom is provided with circle
Conical seal (contact) face；The copper core component includes copper core and copper core sealing element, passes through riveting sealing between copper core and copper core sealing element
It is fixed；The copper core sealing element is provided with upper seal support, and upper seal support is arc surface, the circular cone of upper seal support and dynamic iron core bottom
Shape sealing surface partners sealing pair；The lower part of the copper core sealing element is electromagnetism valve sealing surface, corresponding, is set on the valve body
It is equipped with electromagnetism valve base, electromagnetism valve sealing surface and electromagnetism valve base partner sealing pair；The copper core sealing element uses PTFE
Material production, increases the service life of solenoid valve；The second spring is arranged below copper core, and second spring is tower-shaped bullet
Spring；Below copper core gasket setting second spring, copper core gasket is made of brass material, copper core gasket and tube base part it
Between fixed by cross spot welding；
Solenoid valve balance hole is provided in the copper core, it can be when requiring solenoid valve to close, copper core component two-way pressure balance,
By the spring force of the first spring and the weight of dynamic iron core, make solenoid valve quick closedown；It is flat that pressure is provided in the dynamic iron core
The central axis of weighing apparatus hole, pressure compensation opening and dynamic iron core is not parallel, is in ㄣ shape, can slow down dynamic iron when needing solenoid valve to open
Pressure balance speed above and below core, opens solenoid valve slowly, protects compressor not by liquid hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047399.3A CN108954991A (en) | 2018-09-09 | 2018-09-09 | A kind of electromagnetism heating power expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047399.3A CN108954991A (en) | 2018-09-09 | 2018-09-09 | A kind of electromagnetism heating power expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108954991A true CN108954991A (en) | 2018-12-07 |
Family
ID=64476241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811047399.3A Pending CN108954991A (en) | 2018-09-09 | 2018-09-09 | A kind of electromagnetism heating power expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108954991A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243112A (en) * | 2019-06-12 | 2019-09-17 | 安徽江淮松芝空调有限公司 | A kind of heating power expansion valve with cutoff function |
| CN113048243A (en) * | 2021-02-22 | 2021-06-29 | 西安航天远征流体控制股份有限公司 | Valve body and step-by-step direct-acting electromagnetic valve |
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|---|---|---|---|---|
| JP2006199183A (en) * | 2005-01-21 | 2006-08-03 | Tgk Co Ltd | Expansion device |
| CN201265692Y (en) * | 2008-09-28 | 2009-07-01 | 浙江三花股份有限公司 | Normally opened electromagnet valve structure |
| CN102606793A (en) * | 2012-03-26 | 2012-07-25 | 宁波奥柯汽车空调有限公司 | Electromagnetic expansion valve |
| CN206572041U (en) * | 2017-01-13 | 2017-10-20 | 盾安环境技术有限公司 | A kind of valve |
| CN206618172U (en) * | 2017-03-30 | 2017-11-07 | 宁波松鹰汽车部件有限公司 | A kind of outer balanced electromagnetic heating power expansion valve |
| CN107461526A (en) * | 2016-06-02 | 2017-12-12 | 浙江盾安人工环境股份有限公司 | A kind of heating power expansion valve |
| CN206817827U (en) * | 2017-03-29 | 2017-12-29 | 宁波松鹰汽车部件有限公司 | Inner equilibrium electromagnetism heating power expansion valve |
| CN207034338U (en) * | 2017-08-09 | 2018-02-23 | 浙江新劲空调设备有限公司 | The normally opened electromagnetic expanding valve of type pilot side position formula |
| CN207035589U (en) * | 2017-08-09 | 2018-02-23 | 浙江新劲空调设备有限公司 | The normally closed electromagnetic expanding valve of type pilot side position formula |
| CN208859949U (en) * | 2018-09-09 | 2019-05-14 | 宁波松鹰汽车部件有限公司 | A kind of electromagnetism heating power expansion valve |
-
2018
- 2018-09-09 CN CN201811047399.3A patent/CN108954991A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006199183A (en) * | 2005-01-21 | 2006-08-03 | Tgk Co Ltd | Expansion device |
| CN201265692Y (en) * | 2008-09-28 | 2009-07-01 | 浙江三花股份有限公司 | Normally opened electromagnet valve structure |
| CN102606793A (en) * | 2012-03-26 | 2012-07-25 | 宁波奥柯汽车空调有限公司 | Electromagnetic expansion valve |
| CN107461526A (en) * | 2016-06-02 | 2017-12-12 | 浙江盾安人工环境股份有限公司 | A kind of heating power expansion valve |
| CN206572041U (en) * | 2017-01-13 | 2017-10-20 | 盾安环境技术有限公司 | A kind of valve |
| CN206817827U (en) * | 2017-03-29 | 2017-12-29 | 宁波松鹰汽车部件有限公司 | Inner equilibrium electromagnetism heating power expansion valve |
| CN206618172U (en) * | 2017-03-30 | 2017-11-07 | 宁波松鹰汽车部件有限公司 | A kind of outer balanced electromagnetic heating power expansion valve |
| CN207034338U (en) * | 2017-08-09 | 2018-02-23 | 浙江新劲空调设备有限公司 | The normally opened electromagnetic expanding valve of type pilot side position formula |
| CN207035589U (en) * | 2017-08-09 | 2018-02-23 | 浙江新劲空调设备有限公司 | The normally closed electromagnetic expanding valve of type pilot side position formula |
| CN208859949U (en) * | 2018-09-09 | 2019-05-14 | 宁波松鹰汽车部件有限公司 | A kind of electromagnetism heating power expansion valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243112A (en) * | 2019-06-12 | 2019-09-17 | 安徽江淮松芝空调有限公司 | A kind of heating power expansion valve with cutoff function |
| CN113048243A (en) * | 2021-02-22 | 2021-06-29 | 西安航天远征流体控制股份有限公司 | Valve body and step-by-step direct-acting electromagnetic valve |
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