CN107435753A - Electric expansion valve and there is its refrigeration plant - Google Patents
Electric expansion valve and there is its refrigeration plant Download PDFInfo
- Publication number
- CN107435753A CN107435753A CN201610354894.3A CN201610354894A CN107435753A CN 107435753 A CN107435753 A CN 107435753A CN 201610354894 A CN201610354894 A CN 201610354894A CN 107435753 A CN107435753 A CN 107435753A
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- Prior art keywords
- electric expansion
- groove
- valve seat
- expansion valve
- valve
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 10
- 230000002265 prevention Effects 0.000 claims abstract description 50
- 230000009467 reduction Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 244000138939 Ricinodendron heudelotii Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Classifications
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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
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention provides a kind of electric expansion valve and there is its refrigeration plant, wherein, electric expansion valve includes：Valve seat；Nut assembly, it is connected on valve seat；Screw mandrel, it is movably disposed in nut assembly；Valve seat core, in valve seat and there is valve port；Needle, needle includes the main part coordinated with the inwall of valve seat core and the needle section coordinated below main part and with valve port, needle has the closed position of closing valve port and avoids the open position of valve port, and screw mandrel valve needle moves between closed position and open position；Noise reduction unit, includes the first rotation prevention portion and the second rotation prevention portion of mutual cooperation, and one in the first rotation prevention portion and the second rotation prevention portion is arranged on valve seat core or nut assembly, and another is arranged on main part.Technical scheme can efficiently solve the problem of electric expansion valve noise of the prior art is big.
Description
Technical field
The present invention relates to refrigerating field, in particular to a kind of electric expansion valve and has its refrigeration plant.
Background technology
It can be used in refrigerating field and arrive a kind of electric expansion valve, as shown in figure 1, the electric expansion valve is mainly by coil and valve body structure
Into, wherein, valve body by valve seat, valve seat core 1, the first adapter 3, the second adapter 4, shell, rotor part 5, nut assembly 6,
The parts such as screw component 7, needle 8 and coil fixing support form.In existing structure, needle 8 and valve seat core 1 are all metals.
When electric expansion valve works, needle 8 carrys out back rotation in the endoporus of valve seat core 1.In the continuous valve opening of electric expansion valve and valve closing
During, needle 8 it is cylindrical between the endoporus of valve seat core 1 there may be friction and hit, the corresponding sound can be sent, generation is made an uproar
Sound.Particularly when expansion valve is arranged in indoor set, system noise can be increased, and then influence the comfortableness of air-conditioning.
The content of the invention
It is of the prior art to solve it is a primary object of the present invention to provide a kind of electric expansion valve and there is its refrigeration plant
The problem of electric expansion valve noise is big.
To achieve these goals, according to an aspect of the invention, there is provided a kind of electric expansion valve, including：Valve seat；Spiral shell
Female component, it is connected on valve seat；Screw mandrel, it is movably disposed in nut assembly；Valve seat core, in valve seat and there is valve
Mouthful；Needle, needle include the main part coordinated with the inwall of valve seat core and the syringe needle coordinated below main part and with valve port
Portion, needle have the closed position of closing valve port and avoid the open position of valve port, and screw mandrel valve needle is in closed position with opening
Open and move between position；Noise reduction unit, includes the first rotation prevention portion and the second rotation prevention portion of mutual cooperation, and the first rotation prevention portion and second stops
One in transfer part is arranged on valve seat core or nut assembly, and another is arranged on main part.
Further, the first rotation prevention portion is first raised, and the second rotation prevention portion is the first groove with the first male cooperation.
Further, over the nut component, valve seat core, which has, avoids the first raised breach, and the first groove is set for the first raised setting
Put on main part.
Further, there is gap between the first projection and the first groove.
Further, ship and resell on another market untill the first rotation prevention portion, be provided with the side wall of valve seat core or on needle for installing rotation stop pin
Installation portion, the second rotation prevention portion are the second groove coordinated with rotation stop pin.
Further, installation portion is mounting hole, and the axis of rotation stop pin is vertical with the axis of needle, the end of rotation stop pin and second recessed
Groove is engaged.
Further, rotation stop pin protrudes from the height of valve seat core or needle and is less than the depth of the second groove.
Further, installation portion is the 3rd groove, the axis of rotation stop pin and the diameter parallel of needle, and a rotation stop pin part is arranged at
In second groove, another part is arranged in the 3rd groove.
Further, the diameter of rotation stop pin is less than the groove depth sum of the second groove and the 3rd groove.
Further, valve seat core includes valve core case body and positioned at the top of valve core case body and independently of the snap ring of valve core case body,
First rotation prevention portion is arranged on the inwall of snap ring, and the first rotation prevention portion is second raised, and the second rotation prevention portion is and the second male cooperation
4th groove.
Further, the second raised height is less than the groove depth of the 4th groove.
According to another aspect of the present invention, there is provided a kind of refrigeration plant, including electric expansion valve, electric expansion valve are above-mentioned
Electric expansion valve.
Apply the technical scheme of the present invention, electric expansion valve includes noise reduction unit, and above-mentioned noise reduction unit is stopped including the first rotation prevention portion and second
Transfer part, one in the first rotation prevention portion and the second rotation prevention portion is arranged on valve seat core or nut assembly, and another is arranged on main part
On.When the screw mandrel valve needle of electric expansion valve moves back and forth between open and closed positions, the first rotation prevention portion and
Two rotation prevention portions can cooperate, and avoid the situation that the main part of needle and valve seat core relatively rotate and occur, so as to reduce master
Due to rubbing and hitting caused by relative rotation between body portion and valve seat core, noise is reduced, adds comfort level, and then solve
The problem of electric expansion valve noise of having determined is big.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the vertical profile structural representation of electric expansion valve in the prior art；
Fig. 2 shows the vertical profile structural representation of the embodiment one of the electric expansion valve according to the present invention；
Fig. 3 shows the dimensional structure diagram of the needle of Fig. 2 electric expansion valve；
Fig. 4 shows the vertical profile dimensional structure diagram of Fig. 2 valve seat core；
Fig. 5 shows the schematic front view of Fig. 4 valve seat core；
Fig. 6 shows the dimensional structure diagram of the rotation stop pin of Fig. 2 electric expansion valve；
Fig. 7 shows the vertical profile structural representation of the embodiment two of the electric expansion valve according to the present invention；
Fig. 8 shows the dimensional structure diagram of the valve seat core of Fig. 7 electric expansion valve；
Fig. 9 shows the vertical profile structural representation of Fig. 8 valve seat core；
Figure 10 shows the dimensional structure diagram of Fig. 7 needle；
Figure 11 shows the vertical profile dimensional structure diagram of Figure 10 needle；
Figure 12 shows the dimensional structure diagram of the rotation stop pin of Fig. 7 electric expansion valve；
Figure 13 shows the vertical profile structural representation of the example IV of the electric expansion valve according to the present invention；
Figure 14 shows the dimensional structure diagram of the snap ring of Figure 13 electric expansion valve；
Figure 15 shows the dimensional structure diagram of Figure 13 needles；
Figure 16 shows the vertical profile structural representation of the embodiment five of the electric expansion valve according to the present invention；
Figure 17 shows the dimensional structure diagram of the nut assembly of Figure 16 electric expansion valve；
Figure 18 shows the vertical profile structural representation of Figure 17 nut assembly；And
Figure 19 shows the dimensional structure diagram of the valve seat core of Figure 16 electric expansion valve.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, valve seat core；11st, valve port；12nd, valve core case body；13rd, snap ring；20th, needle；21st, main part；22nd, syringe needle
Portion；31st, the second groove；32nd, mounting hole；33a, rotation stop pin；33b, rotation stop pin；34th, the 3rd groove；35th, second is raised；
36th, the 4th groove；40th, rotor；50th, screw mandrel；60th, nut assembly.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figures 2 to 6, the electric expansion valve of embodiment one include valve seat, nut assembly 60, screw mandrel 50, valve seat core 10,
Needle 20 and noise reduction unit.Wherein, nut assembly 60 is connected on valve seat；Screw mandrel 50 is movably disposed at nut assembly 60
It is interior；Valve seat core 10 is located in valve seat and has valve port 11；Needle 20 includes the main part 21 coordinated with the inwall of valve seat core 10
And there is the closed position of closing valve port 11 positioned at the lower section of main part 21 and the needle section 22 coordinated with valve port 11, needle 20
And the open position of valve port 11 is avoided, the valve needle 20 of screw mandrel 50 moves between closed position and open position；Noise reduction unit
The first rotation prevention portion and the second rotation prevention portion including mutual cooperation, one in the first rotation prevention portion and the second rotation prevention portion is arranged on valve seat core
On 10, another is arranged on main part 21.
The technical scheme of Application Example one, electric expansion valve include noise reduction unit, and above-mentioned noise reduction unit includes the first rotation prevention portion and second
Rotation prevention portion, one in the first rotation prevention portion and the second rotation prevention portion is arranged on valve seat core 10, and another is arranged on main part 21.
When the valve needle 20 of screw mandrel 50 of electric expansion valve moves back and forth between open and closed positions, the first rotation prevention portion and
Second rotation prevention portion can cooperate, and avoid the situation that the main part 21 of needle 20 and valve seat core 10 relatively rotate and occur, from
And reduce between main part 21 and valve seat core 10 due to rubbing and hitting caused by relative rotation, noise is reduced, is increased
Comfort level, and then solve the problems, such as that electric expansion valve noise is big.
It should be noted that in embodiment one, electric expansion valve also includes coil, rotor 40.Coil drive rotor 40 rotates,
Screw mandrel 50 is connected with rotor 40, and the drive screw 50 of rotor 40 rotates.Nut assembly 60 coordinates with screw mandrel 50, by screw mandrel 50
Convert rotational motion for linear motion.The one end of screw mandrel 50 away from rotor 40 is connected with needle 20, so that needle 20 is closed
Moved between position and open position.As shown in Figures 2 to 6, in embodiment one, ship and resell on another market 33a untill the first rotation prevention portion, valve
The installation portion for installing rotation stop pin 33a is provided with the side wall of seat core 10 or on needle 20, the second rotation prevention portion is and rotation stop pin
The second groove 31 that 33a coordinates.On the one hand, when the main part 21 of the needle 20 of electric expansion valve produces relatively with valve seat core 10
During the trend of rotation, above-mentioned rotation stop pin 33a will cooperate with the second groove 31, so as to avoid main part 21 and valve seat core
10 relatively rotate situations occur, and then reduce due between main part 21 and valve seat core 10 due to caused by relative rotation
Friction and shock, reduce noise, add comfort level.On the other hand, said structure is simple, easy to process and assembling.
As shown in Figures 2 to 6, in embodiment one, installation portion is mounting hole 32, rotation stop pin 33a axis and needle 20
Axis is vertical, when the trend that the main part 21 of the needle 20 of electric expansion valve produces relative rotation with valve seat core 10, rotation stop pin
33a end and the side wall of the second groove 31 cooperate, so as to avoid the feelings that main part 21 relatively rotates with valve seat core 10
Condition occurs, and then reduces due to, due to rubbing and hitting caused by relative rotation, subtracting between main part 21 and valve seat core 10
Small noise, adds comfort level.On the other hand, said structure is simple, easy to process and assembling.Preferably, above-mentioned rotation stop
Pin 33a is fixed in mounting hole 32 by welding or binding agent.
As shown in Figures 2 to 6, in embodiment one, rotation stop pin 33a protrudes from valve seat core 10 or the height of needle 20 is less than
The depth of second groove 31.Above configuration reduce what is contacted with each other between rotation stop pin 33a end face and the bottom surface of the second groove 31
Probability, so as to reduce due to rotation stop pin 33a end face and the bottom surface phase mutual friction of the second groove 31 and caused noise, improve
User use feeling.
As shown in Fig. 7 to Figure 12, the difference of the electric expansion valve and above-described embodiment of embodiment two is rotation stop pin and matched somebody with somebody with it
The shape of the installation portion of conjunction.Specifically, in embodiment two, installation portion is the 3rd groove 34, rotation stop pin 33b axis and valve
The diameter parallel of pin 20, a rotation stop pin 33b parts are arranged in the second groove 31, and another part is arranged in the 3rd groove 34.
When the trend that the main part 21 of the needle 20 of electric expansion valve produces relative rotation with valve seat core 10, rotation stop pin 33b side wall
Cooperated with the side wall of the second groove 31, situation about being relatively rotated so as to avoid main part 21 and valve seat core 10 occurs, and enters
And reduce due to, due to friction caused by relative rotation and shock, reducing noise between main part 21 and valve seat core 10,
Add comfort level.On the other hand, said structure is simple, easy to process and assembling.Preferably, above-mentioned rotation stop pin 33b passes through
Welding or binding agent are fixed in the 3rd groove 34.
As shown in Fig. 7 to Figure 12, in embodiment two, rotation stop pin 33b diameter is less than the second groove 31 and the 3rd groove 34
Groove depth sum.The probability to be contacted with each other between rotation stop pin 33b side wall and the bottom surface of the second groove 31 is above configuration reduced,
So as to reduce bottom surface phase mutual friction due to rotation stop pin 33b the second groove of side wall 31 and caused noise, improving user makes
With impression.
The electric expansion valve (not shown) of embodiment three is the concrete structure of noise reduction unit with the difference of embodiment one.Specifically
Ground, the first rotation prevention portion are first raised, and the second rotation prevention portion is the first groove with the first male cooperation.Set below with the first projection
Put on main part 21, the first groove illustrates exemplified by being arranged on valve seat core 10.As the master of the needle 20 of electric expansion valve
During the trend that body portion 21 produces relative rotation with valve seat core 10, the first raised side wall on main part 21 will be with valve seat core 10
On the side wall of the first groove cooperate, the side wall of the first groove serves the effect of backstop to the first raised side wall, so as to
Avoid main part 21 with the situation that valve seat core 10 relatively rotates to occur, and then reduce due to main part 21 and valve seat core 10
Between due to caused by relative rotation rub and hit, reduce noise, add comfort level.Certainly, the first projection may be used also
To be arranged on valve seat core 10, the first groove is arranged on main part 21, the first raised and cooperation of the first groove mode with it is upper
It is identical to state fit system, will not be repeated here.In addition, raised and groove structure is simple, it is easy to process.
In embodiment three, the first raised height is less than the depth of the first groove.Above configuration reduce the first raised top surface
The probability to be contacted with each other between the bottom surface of the first groove, so as to reduce because the first raised top surface mutually rubs with the first groove
Wipe and caused noise, improve user's use feeling.
As shown in FIG. 13 to 15, the difference of the electric expansion valve of example IV and embodiment three is the specific knot of valve seat core 10
Structure.Specifically, in example IV, valve seat core 10 includes valve core case body 12 and positioned at the top of valve core case body 12 and only
The snap ring 13 of valve core case body 12 is stood on, the first rotation prevention portion is arranged on the inwall of snap ring 13, and the first rotation prevention portion is second raised
35, the second rotation prevention portion is the 4th groove 36 coordinated with the second projection 35.Said structure has two aspect advantages：On the one hand, when
During the trend that the main part 21 of the needle 20 of electric expansion valve produces relative rotation with valve seat core 10, above-mentioned second projection 35
Side wall and the side wall of above-mentioned 4th groove 36 will cooperate, so as to avoid the feelings that main part 21 relatively rotates with valve seat core 10
Condition occurs, and then reduces between main part 21 and valve seat core 10 due to rubbing and hitting caused by relative rotation, reduces
Noise, add comfort level.On the other hand, said structure is simple, easy to process and assembling.
As shown in FIG. 13 to 15, in example IV, the height of the second projection 35 is less than the groove depth of the 4th groove 36.It is above-mentioned
Structure reduces the probability to be contacted with each other between the top surface of the second projection 35 and the bottom surface of the 4th groove 36, so as to reduce due to
The bottom surface phase mutual friction of the top surface of second projection 35 and the 4th groove 36 and caused noise, improve user's use feeling.
As shown in Figure 16 to Figure 19, the electric expansion valve of embodiment five is the position of the first rotation prevention portion with the difference of embodiment three.
Specifically, in embodiment five, the first rotation prevention portion is first raised, and the second rotation prevention portion is the first groove with the first male cooperation.
First projection is arranged on nut assembly 60, and the first groove is arranged on main part 21, and valve seat core 10, which has, avoids the first projection
Breach.First projection passes through above-mentioned breach and the first fit depressions.When electric expansion valve needle 20 main part 21 with
During the trend that valve seat core 10 produces relative rotation, the first raised side wall on nut assembly 60 will be with the on main part 21
The side wall of one groove cooperates, and the side wall of the first groove serves the effect of backstop to the first raised side wall, so as to avoid
Main part 21 occurs with the situation that nut assembly 60 relatively rotates.Due to nut assembly 60 and the geo-stationary of valve seat core 10, because
This, said structure avoids to be relatively rotated between main part 21 and valve seat core 10, and then reduces main part 21 and valve seat core 10
Between due to caused by relative rotation rub and hit, reduce noise, add comfort level.Certainly, the first projection may be used also
To be arranged on main part 21, the first groove is arranged on nut assembly 60, first is raised and the first groove coordinates mode and
Above-mentioned fit system is identical, will not be repeated here.
Preferably, in embodiment five, there is gap between the first projection and the first groove, i.e., the first raised height, which is less than, to be avoided
The first raised radial depth of breach and the depth sum of the first groove.Above configuration reduce the first raised top surface and first
The probability to be contacted with each other between the bottom surface of groove, produced so as to reduce due to the first raised top surface and the first groove phase mutual friction
Raw noise, improve user's use feeling.
In the above-described embodiments, on the matching relationship between nut assembly 60 and valve seat core 10, used valve seat core 10
Upper end load nut assembly 60 lower end mode, i.e. nut assembly is sleeved on the outside of valve seat core.Except this fit system
Outside, the external diameter of the bottom of nut assembly 60 can also be arranged to match with the internal diameter of the upper end of valve seat core 10, even if
The bottom for obtaining nut assembly 60 is set in the inside of the upper end of valve seat core 10, so, when the first rotation prevention portion is first raised,
It can equally be arranged on nut assembly 60, it is of the invention pre- to realize with the first fit depressions being arranged on main part 21
The technique effect of phase.
In this application, a kind of refrigeration plant is additionally provided, is included according to the refrigeration plant (not shown) of the application：Electricity
Sub- expansion valve, electric expansion valve are above-mentioned electric expansion valve.Because electric expansion valve has the advantages of noise is small, therefore have
The refrigeration plant of the electric expansion valve also has above-mentioned advantage.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made, etc.
With replacement, improvement etc., should be included in the scope of the protection.
Claims (12)
- A kind of 1. electric expansion valve, it is characterised in that including：Valve seat；Nut assembly (60), is connected on the valve seat；Screw mandrel (50), it is movably disposed in the nut assembly (60)；Valve seat core (10), in the valve seat and there is valve port (11)；Needle (20), the needle (20) include the main part (21) that coordinates with the inwall of the valve seat core (10) with And the needle section (22) coordinated below the main part (21) and with the valve port (11), the needle (20) With the closed position for closing the valve port (11) and the open position of the avoidance valve port (11), the screw mandrel (50) The needle (20) is driven to be moved between the closed position and the open position；Noise reduction unit, includes the first rotation prevention portion and the second rotation prevention portion of mutual cooperation, and first rotation prevention portion and described second are stopped One in transfer part is arranged on the valve seat core (10) or the nut assembly (60), and another is arranged on the master In body portion (21).
- 2. electric expansion valve according to claim 1, it is characterised in that first rotation prevention portion is first raised, described the Two rotation prevention portions are the first groove with first male cooperation.
- 3. electric expansion valve according to claim 2, it is characterised in that first projection is arranged on the nut assembly (60) On, the valve seat core (10), which has, avoids the described first raised breach, and first groove is arranged on the main part (21) on.
- 4. the electric expansion valve according to Claims 2 or 3, it is characterised in that the described first raised and described first groove it Between there is gap.
- 5. electric expansion valve according to claim 1, it is characterised in that shipped and resell on another market untill first rotation prevention portion, the valve seat It is provided with the installation portion for installing the rotation stop pin in the side wall of core (10) or on the needle (20), described Two rotation prevention portions are the second groove (31) coordinated with the rotation stop pin.
- 6. electric expansion valve according to claim 5, it is characterised in that the installation portion is mounting hole (32), the rotation stop The axis of pin is vertical with the axis of the needle (20), and the end of the rotation stop pin matches with second groove (31) Close.
- 7. electric expansion valve according to claim 6, it is characterised in that the rotation stop pin protrudes from the valve seat core (10) Or the height of the needle (20) is less than the depth of second groove (31).
- 8. electric expansion valve according to claim 5, it is characterised in that the installation portion is the 3rd groove (34), described to stop The diameter parallel of the axis shipped and resell on another market and the needle (20), the rotation stop pin part are arranged at second groove (31) Interior, another part is arranged in the 3rd groove (34).
- 9. electric expansion valve according to claim 8, it is characterised in that the diameter of the rotation stop pin is less than second groove (31) with the groove depth sum of the 3rd groove (34).
- 10. electric expansion valve according to claim 1, it is characterised in that the valve seat core (10) includes valve core case body (12) And positioned at the top of the valve core case body (12) and independently of the snap ring (13) of the valve core case body (12), it is described First rotation prevention portion is arranged on the inwall of the snap ring (13), and first rotation prevention portion is second raised (35), and described the Two rotation prevention portions are the 4th groove (36) coordinated with described second raised (35).
- 11. electric expansion valve according to claim 10, it is characterised in that the height of described second raised (35) is less than described The groove depth of 4th groove (36).
- 12. a kind of refrigeration plant, including electric expansion valve, it is characterised in that the electric expansion valve is to appoint in claim 1 to 11 Electric expansion valve described in one.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354894.3A CN107435753B (en) | 2016-05-25 | 2016-05-25 | Electronic expansion valve and refrigeration equipment with same |
| JP2018561243A JP6797214B2 (en) | 2016-05-25 | 2017-05-25 | An electronic expansion valve and a freezing device having this electronic expansion valve |
| PCT/CN2017/085927 WO2017202366A1 (en) | 2016-05-25 | 2017-05-25 | Electronic expansion valve and cooling device having same |
| KR1020187037229A KR20190010632A (en) | 2016-05-25 | 2017-05-25 | Electronic expansion valve and cooling device having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610354894.3A CN107435753B (en) | 2016-05-25 | 2016-05-25 | Electronic expansion valve and refrigeration equipment with same |
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| Publication Number | Publication Date |
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| CN107435753A true CN107435753A (en) | 2017-12-05 |
| CN107435753B CN107435753B (en) | 2019-12-24 |
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| CN201610354894.3A Active CN107435753B (en) | 2016-05-25 | 2016-05-25 | Electronic expansion valve and refrigeration equipment with same |
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| Country | Link |
|---|---|
| JP (1) | JP6797214B2 (en) |
| KR (1) | KR20190010632A (en) |
| CN (1) | CN107435753B (en) |
| WO (1) | WO2017202366A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140687A (en) * | 2018-11-06 | 2020-05-12 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2021103752A1 (en) * | 2019-11-27 | 2021-06-03 | 浙江盾安人工环境股份有限公司 | Noise reduction sleeve and electronic expansion valve |
| CN113339511A (en) * | 2020-03-03 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve nut seat structure and mounting method thereof |
| WO2021218845A1 (en) * | 2020-04-26 | 2021-11-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2021218804A1 (en) * | 2020-04-26 | 2021-11-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN114183547A (en) * | 2019-11-19 | 2022-03-15 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| WO2023098767A1 (en) * | 2021-03-17 | 2023-06-08 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296246B (en) * | 2018-03-23 | 2020-08-21 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN110939747B (en) * | 2018-09-25 | 2023-09-12 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN111963696A (en) * | 2019-05-20 | 2020-11-20 | 苏州华越金属有限公司 | Electronic expansion valve |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191383A (en) * | 1982-05-06 | 1983-11-08 | Syst Hoomuzu:Kk | Electronic expansion valve |
| JPH11190450A (en) * | 1997-12-26 | 1999-07-13 | Citizen Watch Co Ltd | Flow rate control valve |
| JP2000120883A (en) * | 1998-10-13 | 2000-04-28 | Saginomiya Seisakusho Inc | Control valve |
| JP2006010004A (en) * | 2004-06-28 | 2006-01-12 | Saginomiya Seisakusho Inc | Electric control valve |
| JP2006125751A (en) * | 2004-10-29 | 2006-05-18 | Saginomiya Seisakusho Inc | Electric control valve and refrigeration cycle device |
| CN101956830A (en) * | 2009-07-17 | 2011-01-26 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN101994839A (en) * | 2009-08-10 | 2011-03-30 | 浙江三花股份有限公司 | Electric control valve |
| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
| CN103115190A (en) * | 2011-11-16 | 2013-05-22 | 浙江三花股份有限公司 | Electronic expansion valve and machining method thereof |
| CN203686165U (en) * | 2014-01-17 | 2014-07-02 | 浙江盾安禾田金属有限公司 | Large electronic expansion valve |
| CN104565401A (en) * | 2013-10-22 | 2015-04-29 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN104896810A (en) * | 2014-03-05 | 2015-09-09 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811376Y2 (en) * | 1982-02-19 | 1983-03-03 | シチズン時計株式会社 | fluid control device |
| JPS5983256U (en) * | 1982-11-26 | 1984-06-05 | 小島プレス工業株式会社 | Dial pressure control device |
| JP4069312B2 (en) * | 1999-02-03 | 2008-04-02 | 株式会社鷺宮製作所 | Electric control valve |
| JP3937029B2 (en) * | 1999-03-26 | 2007-06-27 | 株式会社鷺宮製作所 | Motorized valve |
| JP2002089731A (en) * | 2000-07-10 | 2002-03-27 | Toshiba Corp | Motor-operated flow regulating valve and refrigerating cycle device |
| JP2006097947A (en) * | 2004-09-29 | 2006-04-13 | Fuji Koki Corp | Motor operated valve |
| CN201251328Y (en) * | 2008-07-17 | 2009-06-03 | 浙江中宝自控元件有限公司 | Low-noise electronic expansion valve |
| CN103836851B (en) * | 2014-03-25 | 2016-06-22 | 浙江三花股份有限公司 | The valve component of a kind of electric expansion valve and manufacture method thereof |
| CN105333197B (en) * | 2014-08-08 | 2018-03-27 | 浙江三花智能控制股份有限公司 | A kind of motor-driven valve and its stop device, the installation method of stop rails |
-
2016
- 2016-05-25 CN CN201610354894.3A patent/CN107435753B/en active Active
-
2017
- 2017-05-25 WO PCT/CN2017/085927 patent/WO2017202366A1/en active Application Filing
- 2017-05-25 KR KR1020187037229A patent/KR20190010632A/en not_active IP Right Cessation
- 2017-05-25 JP JP2018561243A patent/JP6797214B2/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191383A (en) * | 1982-05-06 | 1983-11-08 | Syst Hoomuzu:Kk | Electronic expansion valve |
| JPH11190450A (en) * | 1997-12-26 | 1999-07-13 | Citizen Watch Co Ltd | Flow rate control valve |
| JP2000120883A (en) * | 1998-10-13 | 2000-04-28 | Saginomiya Seisakusho Inc | Control valve |
| JP2006010004A (en) * | 2004-06-28 | 2006-01-12 | Saginomiya Seisakusho Inc | Electric control valve |
| JP2006125751A (en) * | 2004-10-29 | 2006-05-18 | Saginomiya Seisakusho Inc | Electric control valve and refrigeration cycle device |
| CN101956830A (en) * | 2009-07-17 | 2011-01-26 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN101994839A (en) * | 2009-08-10 | 2011-03-30 | 浙江三花股份有限公司 | Electric control valve |
| CN102454818A (en) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | Electric valve |
| CN103115190A (en) * | 2011-11-16 | 2013-05-22 | 浙江三花股份有限公司 | Electronic expansion valve and machining method thereof |
| CN104565401A (en) * | 2013-10-22 | 2015-04-29 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN203686165U (en) * | 2014-01-17 | 2014-07-02 | 浙江盾安禾田金属有限公司 | Large electronic expansion valve |
| CN104896810A (en) * | 2014-03-05 | 2015-09-09 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140687A (en) * | 2018-11-06 | 2020-05-12 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN114183547A (en) * | 2019-11-19 | 2022-03-15 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| WO2021103752A1 (en) * | 2019-11-27 | 2021-06-03 | 浙江盾安人工环境股份有限公司 | Noise reduction sleeve and electronic expansion valve |
| CN113339511A (en) * | 2020-03-03 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve nut seat structure and mounting method thereof |
| WO2021218845A1 (en) * | 2020-04-26 | 2021-11-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2021218804A1 (en) * | 2020-04-26 | 2021-11-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| WO2023098767A1 (en) * | 2021-03-17 | 2023-06-08 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190010632A (en) | 2019-01-30 |
| WO2017202366A1 (en) | 2017-11-30 |
| CN107435753B (en) | 2019-12-24 |
| JP6797214B2 (en) | 2020-12-09 |
| JP2019516941A (en) | 2019-06-20 |
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