CN109469997A - Refrigeration system and its electric expansion valve - Google Patents
Refrigeration system and its electric expansion valve Download PDFInfo
- Publication number
- CN109469997A CN109469997A CN201710798166.6A CN201710798166A CN109469997A CN 109469997 A CN109469997 A CN 109469997A CN 201710798166 A CN201710798166 A CN 201710798166A CN 109469997 A CN109469997 A CN 109469997A
- Authority
- CN
- China
- Prior art keywords
- valve
- electric expansion
- needle
- rod
- expansion valve
- 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.)
- Granted
Links
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
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
-
- 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)
- Details Of Valves (AREA)
- Magnetically Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a kind of electric expansion valves characterized by comprising seat portion, the seat portion offer the first valve port (110a)；Needle (107), the needle (107) is fixedly connected with valve seat core (117), the valve seat core (117) is accessible or far from first valve port (110a), is in first valve port (110a) and closes or opens state；The first sound attenuation features (118) are fixedly installed inside the valve seat core (117)；With the valve rod (106) of the needle (107) floating connection, the valve rod (106) has valve-rod cavity (1061), it is provided with the second sound attenuation features (114) in the valve-rod cavity (1061), the first opening portion (106c) and the second opening portion (106b) is offered on the valve rod (106)；First opening portion (106c) and second opening portion (106b) are connected to the valve-rod cavity (1061).No matter the refrigerant of electric expansion valve provided by the invention, small flow control division point flows into from which direction, it is necessary to by multiple tracks silencer element, to realize the flow-disturbing noise reduction of coolant media, improve the usage comfort of user.
Description
Technical field
The present invention relates to refrigerating fields, and in particular to a kind of electric expansion valve for adjusting cold medium flux.
Background technique
In cooling and warming technical field, electric expansion valve is the cold medium flux control unit of heating-cooling equipment, mainly by
Two parts composition, a part are that body portion is adjusted for flow, and another part is the coiler part for driving.Its is worked
Journey is general are as follows: with the energization or power-off of the coil device as stator, drives the magnetic rotor component as rotor to rotate, with magnetic
Rotor is fixedly connected and the screw rod for following magnet rotor to rotate drives valve needle movements, is provided with nut part, spiral shell in electric expansion valve
Auxiliary assembly is provided with internal thread structure, correspondingly, external thread structure is provided on screw rod, by the cooperation of screw thread pair, makes
Screw rod also drives needle to make elevating movement while rotating, and is come in a manner of adjusting the aperture between needle and valve port
The flow for flowing through the refrigerant of valve port is adjusted, to realize system function and achieve the purpose that accurately to control.
Fig. 1 is a kind of electric expansion valve with small flow regulating function in background technique.Its coil part includes: forever
Magnetic-type stepper motor, with three-level slow down gear reduction unit, with by motor rotary motion be converted to screw rod vertical movement
Screw thread auxiliary structure.Body portion include valve seat 1, valve rod 8, needle 2, the backstopping assembly 3 that is arranged between valve rod 8 and needle 2 with
And the bellows 7 that control needle 2 is gone up and down waits core components to constitute.The first valve port 4 is provided on valve seat 1, needle 2, which has, to be connected to
The open position of the first valve port 4 of closed position and opening on first valve port 4.Needle 2 is connect with valve rod 8 by backstopping assembly 3
It is moved synchronously both when touching, when needle 2 is located at closed position, valve rod 8 can move up and down relative to needle 2.It is set on needle 2
It is equipped with the second valve port 5 being connected to the first valve port 4 and flow channels 9.Several work of electric expansion valve are described below
State: when needle 2 is located at open position, electric expansion valve is in the state of standard-sized sheet.When needle 2 is located at closed position, and valve
When bar 8 is connected on the second valve port 5, fluid can only enter needle 2 or outflow needle 2, therefore electric expansion valve by circulation road 9
State in the small flow of fixation (flow has the size of flow channels to determine).When needing to carry out the adjusting of small flow, valve rod 8 exists
It is moved up under the action of the 7 of bellows, uninterrupted is changed by the mobile formation of regulating valve stem 8, to realize small stream
The adjusting of amount.When valve rod 8 is moved to predetermined position, the backstopping assembly 3 being arranged on valve rod 8 is contacted with needle 2, drives needle
2 is mobile to the direction far from the first valve port 4, realizes that big flow is adjusted.
Above-mentioned electronic expansion valve structure may be used also although having had preferable small flow regulating function and noise reduction effect
With the design of further progress structure, while promoting its anti-acoustic capability, moreover it is possible to further promote the usage comfort of user.
Summary of the invention
The main purpose of the present invention is to provide a kind of electric expansion valve and with its refrigeration system, to further increase
The comfort level of anti-acoustic capability and user.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of electric expansion valve, comprising:
Seat portion, the seat portion offer the first valve port；
Needle, the needle are fixedly connected with valve seat core, and the valve seat core is accessible or far from first valve port, makes institute
State the first valve port be in close or open state；The inside of the needle is directly or indirectly fixedly installed the first sound attenuation features；
With the valve rod of the needle floating connection, the valve rod has valve-rod cavity, is provided with second in the valve-rod cavity and disappears
Sound component offers the first opening portion and the second opening portion on the side wall of the valve rod；First opening portion and described
Two opening portions are connected to the valve-rod cavity.
No matter the refrigerant of electric expansion valve provided by the invention, small flow control division point flows into from which direction, it is necessary to
By multiple tracks silencer element, to realize the flow-disturbing noise reduction of coolant media, the usage comfort of user is improved.
In order to further obtain superior technique effect, can also make following based on the above technical solution
It changes or further defines that
The valve seat core offers the second valve port, and the valve rod is accessible or far from second valve port, makes described second
Valve port is in and closes or opens state.
It is provided with needle confined planes on the needle, protrusion is provided on the valve rod, the protrusion is provided with valve rod limit
Plane, the needle confined planes are mutually arranged oppositely with the valve stem spacing face.
In first spring that is internally provided with of the valve rod, one end of first spring is connected under the protrusion
End, the other end of first spring are abutted against with the valve seat core.
The seat portion is fixed with guide part, and the outer edge of the valve rod is fixedly connected with retaining ring, the retaining ring with it is described
Second spring is provided between guide part.
The guide part has bottom and is opened in the through-hole of the bottom centre, also sets in the inner edge portion of the through-hole
It is equipped with open channels.
The seat portion, which is formed by cavity, is fixedly connected with valve chamber noise elimination part, and the valve chamber noise elimination part is arranged far from
The side of first adapter tube, and be arranged oppositely with first adapter tube.
The bottom of the valve chamber noise elimination part is provided with stage portion, and locating slot, the stage portion are provided in the seat portion
It is mounted in the locating slot, with the fixation valve chamber noise elimination part.
Perforative aperture is provided on the valve rod.
Column-shaped porous matter quieter material is set in the inside of valve rod, noise reduction flow-disturbing action length can be promoted, and convenient for adding
Work.And flow-guiding channel is set over the guide, by Porous acoustic element, so that the coolant media of circulation is adjusted in flow direction
It obtains flow-disturbing noise reduction again later, further improves the effect of noise reduction.
According to another aspect of the present invention, a kind of refrigeration system is provided, comprising: electric expansion valve, electric expansion valve are
Above-mentioned electric expansion valve.Obviously, when the electric expansion valve having above-mentioned technique effect is applied to refrigeration system, the refrigeration system
System obviously also has above-mentioned technical effect.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the partial vertical sectional structural schematic diagram of the electric expansion valve in background technique；
Fig. 2 shows a kind of structural schematic diagrams of electric expansion valve specific embodiment of the invention；
Fig. 3 shows the enlarged structure schematic diagram in the portion A of Fig. 2；
Fig. 4 shows the guide member arrangement schematic diagram of the embodiment of the present invention；
Fig. 5 shows the valve chamber noise elimination part fit structure schematic diagram of the embodiment of the present invention；
Fig. 6 shows the valve chamber noise elimination part structural schematic diagram of the embodiment of the present invention；
Fig. 7 shows the stem structure schematic diagram of another embodiment of the invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Fig. 2, the electric expansion valve of the present embodiment includes valve seat 109 and the shell that is fixed on valve seat 109
104,109 bottom of valve seat is set and seals fixed pedestal 110 with valve seat 109.Valve seat 109 and pedestal 110 form valve seat
Portion.Certainly, as a kind of interchangeable embodiment, valve seat 109 and pedestal 110 can also be made of integrated material.
Valve seat 109, shell 104, pedestal 110 define the space being relatively isolated from the external world.It is connected on the side wall of valve seat 109
First adapter tube 111a, the bottom of pedestal 110 are connected with the second adapter tube 111b, meanwhile, pedestal 110 is provided with the first valve port 110a.
In this way, refrigerant can flow into the second adapter tube 111b from the first adapter tube 111a by the first valve port 110a, also can be reversed from second
Adapter tube 111b flows through the first valve port 110a and flows into the first adapter tube 111a.
In the space that shell 104 and valve seat 109 surround, it is provided with the active force of response electromagnetic coil (not shown)
And the rotor 101 rotated, increase the gear reduction 102 of output torque, and the screw rod 103 as power transmitting.Wherein,
Rotor 101 rotates under the driving effect of electromagnetic coil, and gear reduction 102 is driven to rotate, and screw rod 103 is driven to rotate.
In the inside in space, the nut 105 that is additionally provided with guide part 108 and is fixed on guide part 108.Nut 105 has interior spiral shell
Line, corresponding, screw rod 103 is provided with external screw thread, in this way, when screw rod 103 rotates, due to the effect of screw thread pair, so that
Screw rod 103 also makees elevating movement while rotating.Energy band ovable valve stem 106, needle 107 make upper and lower displacement.
It should be noted that giving gear reduction 102 in the present embodiment, subtract it is of course also possible to be not provided with gear
Fast mechanism 102, and connect screw rod 103 directly with rotor 101, i.e., rotor 101 directly drives screw rod 103 to rotate.This field skill
The structure that art personnel are appreciated that this rotor directly drives screw rod to rotate is common in background technique.
Needle 107 is in substantially hollow tubular structure, solid in the bottom of needle 107 on the basis of orientation shown in the drawings
Surely it is connected with valve seat core 117, the lower end of valve seat core 117 is used for inconsistent with the first valve port 110a and closes the first valve port
110a.That is, valve seat core 117 is contacted with the first valve port 110a when needle 107 is displaced downwardly to extreme position, prevent refrigerant fluid from
The second adapter tube 111b directly is flowed into from the first adapter tube 111a by the first valve port 110a, conversely, refrigerant can not be directly from second
Adapter tube 111b flows into the first adapter tube 111a by the first valve port 110a.
The upper end of valve seat core 117 is also provided with the second valve port 117a, the valve rod 106 being partially set to inside needle 107
It can be contacted with the second valve port 117a and close the second valve port 117a or valve rod 106 and open far from the second valve port 117a
Two valve port 117a.In this way, just constituting small flow control division between valve rod 106 and the second valve port 117a.In the second valve port 117a
The first sound attenuation features 118 are additionally provided between the lower end of valve seat core 117, specifically, can such as the present embodiment in this way,
Setting one is used to place the cavity of sound attenuation features, the cavity and the second valve port being arranged on valve seat core 117 in valve seat core 117
117a is connected, while being connected again with the outside of valve seat core 117.Cavity can be cylindrical shape, be also possible to rectangular-shape, and
The first sound attenuation features 118 are placed in the cavity, then by the modes such as riveting, crimp, make the deformation of bottom of valve seat core 117,
To which the first sound attenuation features 118 are fixed in the cavity, and it is formed simultaneously valve seat core opening portion 117b.Due to the cavity and
Two valve port 117a have run through valve seat core 117, therefore, when the second valve port 117a in the open state, even if valve seat core 117 moves down
To extreme position, when abutting against with the first valve port 110a and being in close state the first valve port 110a, refrigerant still can be through
Second valve port 117a flows into the cavity inside valve seat core 117, carries out noise reduction by the first sound attenuation features 118 in cavity, then
It is flowed out from the lower end of valve seat core 117.
The mode of floating connection is configured between valve rod 106 and needle 107, i.e. valve rod 106 can be made relative to needle 107
The displacement of opposite up and down direction, but valve rod 106 can not completely disengage in the electric expansion valve course of work from needle 107.
It " is completely disengaged " described in this specification, refers to " inside that valve rod 106 is physically located at needle 107 without any a part "
Situation.In order to realize floating connection, needle confined planes 107b is provided on needle 107, therewith adaptably, in valve rod 106
Upper setting valve stem spacing face 106d, as shown in Figure 3.Needle confined planes 107b is arranged oppositely with valve stem spacing face 106d phase, and two
Maximum distance between confined planes can be preset according to actual needs.The bottom of valve rod 106 is provided with sealing 106a,
In the present embodiment, sealing 106a is tapered surface, when valve rod 106 is moved to extreme position downwards, sealing 106a and second
Valve port 117a is inconsistent, is in close state the second valve port 117a.Obviously, when valve rod 106 moves up, so that needle limits
When face 107b and valve stem spacing face 106d are inconsistent, when the second valve port 117a at this time is in aperture regulation maximum, as shown in Figure 3
State；When valve rod 106 moves down, so that being at this time the second valve port when sealing 106a and the second valve port 117a inconsistent
When 117a aperture regulation minimum.It should be noted that needle confined planes 107b be not limited to embodiment record in needle 107
Upper integrally formed, valve stem spacing face 106d is also not limited to being integrally formed on valve rod 106 for embodiment record, this field skill
Art personnel are based on the design theory, can also form above-mentioned needle confined planes 107b or valve by the way of components combination
Bar confined planes 106d.
The first spring 119 is provided between valve rod 106 and valve seat core 117.For the ease of the setting of the first spring 119, with
And the setting of valve stem spacing face 106d described above can be arranged on the circumferential outer edge of valve rod 106 in the present embodiment
One protrusion 1063 outstanding, protrusion 1063 is either in the circumferential completely continuously, be also possible to be set as in the circumferential not
Continuously.Even it will be understood by those skilled in the art that discontinuous state, the upper surface of the protrusion 1063 can still become
Valve stem spacing face 106d, for inconsistent with needle confined planes 107b；The lower end surface of the protrusion 1063 still can be used for contradicting
The upper end of first spring 119.Needle 107 is in close state the first valve port 110a, valve under the action of the first spring 119
The driving force effect upper and lower displacement that bar 106 is transmitted by the first spring 119 and electromagnetic coil adjusts aperture, realizes small flow control division
The valve opening flow of part is adjusted.Simultaneously as the outer diameter of protrusion 1063 is greater than the internal diameter of 107 upper end aperture of needle, so valve rod 106
It can not be detached from from needle 107.
In order to further increase erasure effect, the inside of valve rod 106 is also in hollow form, forms valve-rod cavity 1061, and in valve
Second sound attenuation features 114 are set inside rod cavity 1061, in order to enable a fluid to flow into valve-rod cavity 1061, in the side wall of valve rod 106
On offer the first opening portion 106c.On side wall aperture processing it is more convenient, be not limited to certainly in the present embodiment
It is opened up on the side wall of valve rod 106, it will be appreciated by those skilled in the art that can be opened in any suitable location of valve rod 106
If the inner cavity of valve rod 106 is enabled to be connected with outside.The top of valve rod 106 is fixedly connected with driving section 1062, is used for
Transmit the driving force of screw rod 103.In the present embodiment, driving section 1062, valve rod 106 and its protrusion 1063, the second sound attenuation features
114 just together constitute valve rod assembly.In assembly, first the second noise reduction will can be placed in the valve-rod cavity 1061 in valve rod 106
Then component 114 driving section 1062 and valve rod 106 is fixed, form valve rod assembly.Valve rod assembly is packed into from below again
In needle 107, it is packed into the first spring 119, then valve seat core 117 is fixed on to the lower section of valve rod 107 again.
Be located at the part outside needle 107 in valve rod 106, outer rim is also fixedly connected with retaining ring 112, retaining ring 112 with
It is fixed between the guide part 108 on valve seat 109, is provided with second spring 113, that is, one end of second spring 113 and retaining ring
112 lower surface abuts against, and the other end is abutted against with guide part 108.The second opening portion is additionally provided in the outer edge of valve rod 106
106b.Equally, the second opening portion 106b open up position be also not limited to embodiment record on the side wall of valve rod 106, only
Needing to meet second opening portion 106b, the inside and outside of valve rod 106 can be connected.
As shown in figure 4, guide part 108 is substantially in hollow tubular, side wall and the cooperation of valve seat 109 are fixed, and have bottom
The portion 108b and through-hole 108c for being opened in the bottom center 108b, the outer diameter of the internal diameter and needle 107 of through-hole 108c match, make
For proper needle 107 when carrying out upper and lower displacement, guide part 108 can realize certain guiding role to it.In the logical of guide part
The inner edge portion of hole 108c is additionally provided with open channels 108a, for refrigerant circulation.
It is formed by cavity in valve seat 109 and pedestal 110, is fixedly connected with valve chamber noise elimination part 115, valve chamber noise elimination part
115 are arranged far from the side of the first adapter tube 111a, i.e., are arranged oppositely with the first adapter tube 111a, as shown in Figure 5.In order to by valve chamber
The installation of noise elimination part 115 is in valve seat 109, in a kind of set-up mode provided by the present embodiment, at the bottom of valve chamber noise elimination part 115
A stage portion 115a is arranged in portion, as shown in Figure 6.Therewith adaptably, locating slot is offered on pedestal 110, in this way, can be with
By the way that stage portion 115a to be fitted into locating slot, so that valve chamber noise elimination part 115 be made to be fixed on pedestal 110.Certainly, stage portion
115a is not limited to that the bottom of valve chamber noise elimination part 115 is arranged in, and also can be set at the top of it, the other modes such as side, this
Field technical staff can make several equivalent alternative based on technical inspiration of the invention.
In this way, when refrigerant is flowed by the first adapter tube 111a, after valve chamber noise elimination part 115 carries out noise reduction, from guide part
108 open channels 108a passes through, and flows to the second opening portion 106b, using the noise reduction of the second sound attenuation features 114, then by
The intramedullary expansion chamber 107e (chamber surrounded between needle 107 and valve seat core 117 of first opening portion 106c inflow needle 107
Body)；Refrigerant disperses in the acoustic element made of porous part, and bubble present in fluid is substantially disturbed scattered, and disturbs and dissipated
The noise generated in journey is absorbed by Porous sound attenuation features, to realize the noise reduction for flowing into refrigerant and noise reduction.When refrigerant passes through
After second valve port 117a, again by the effect flow-disturbing noise reduction of the first sound attenuation features 118, the second adapter tube 111b is eventually flowed to.
When refrigerant is flowed into from valve seat core opening portion 117b, by the dispersion impact process of the first sound attenuation features 118, fluid
Present in bubble substantially disturbed it is rich, and disturb dissipate during generate noise absorbed by the first sound attenuation features 118 of Porous,
Realize the sound-deadening and noise-reducing for flowing into refrigerant.Refrigerant flows into the intramedullary expansion chamber 107e of needle 107 after passing through the second valve port 117a, and passes through
The first opening portion 106c is crossed, carries out sound-deadening and noise-reducing by the second sound attenuation features 114, then flow out through the second opening portion 106b；Then
It is flowed out by the open channels 108a of guide part 108, and after 115 noise reduction of valve chamber noise elimination part.By the effect of several sound attenuation features,
Make bubble present in fluid by further flow-disturbing noise reduction.
Above by taking a certain specific embodiment as an example, the technical solution of the application is described in detail, should be referred to
Out, transformation, the improvement etc. of various technical characteristics can also be carried out to above-mentioned specific embodiment according to various actual needs.
When the second valve port 117a is in the completely closed state, if system needs still to have under close valve state centainly
The small flow of fixation, a perforative aperture 106e can be set on valve rod 106, as shown in Figure 7.The aperture of aperture 106e can
It is designed with actual needs.Certainly, it will be understood by those skilled in the art that the realization of the small flow of the fixation, is not limited to
Perforative aperture is set on valve rod 106, it can be to open up circulation groove on the second valve port 117a, in this way, even if the second valve port
When 117a is completely closed, refrigerant still can be flowed out out of this circulation groove.Fixed small flow can also be by the close of valve rod 106
It slots on envelope portion 106a existing to close；Alternatively, a perforative aperture is arranged directly on valve seat core 117 to realize.This field skill
Art personnel should be appreciated that under the above-mentioned various technical inspirations provided, and various equivalent replace can also be made to the small flow of fixation
It changes, these equivalent replacements should also be as belonging within the protection scope of the application.
The term positions such as upper and lower, left and right appeared in this specification text are the shapes presented with respective drawings
State is not construed as the limitation to technical scheme as benchmark.
Present invention also provides a kind of refrigeration system, the embodiment according to the refrigeration system of the application includes electronic expansion
Valve.Wherein, electric expansion valve is above-mentioned electric expansion valve.Since above-mentioned electric expansion valve has the adjusting of flow accurately excellent
Point, therefore have the advantages that its refrigeration system also has it.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of electric expansion valve characterized by comprising
Seat portion, the seat portion offer the first valve port (110a)；
Needle (107), the needle (107) are fixedly connected with valve seat core (117), the valve seat core (117) can come into contact with or
Far from first valve port (110a), it is in first valve port (110a) and progressively closes off or be gradually opened state；The valve
The inside of needle (107) is directly or indirectly fixedly installed the first sound attenuation features (118)；
With the valve rod (106) of the needle (107) floating connection, the valve rod (106) has valve-rod cavity (1061), the valve rod
It is provided with the second sound attenuation features (114) in chamber (1061), the valve rod (106) offers the first opening portion (106c) and second
Opening portion (106b)；First opening portion (106c) and second opening portion (106b) connect with the valve-rod cavity (1061)
It is logical.
2. electric expansion valve according to claim 1, which is characterized in that the valve seat core (117) offers the second valve port
(117a), the valve rod (106) can come into contact with or far from second valve port (117a), make at second valve port (117a)
In progressively closing off or be gradually opened state.
3. electric expansion valve according to claim 2, which is characterized in that be provided with needle limit on the needle (107)
Face (107b) is provided with protrusion (1063) on the valve rod (106), and the protrusion (1063) is provided with valve stem spacing face
(106d), the needle confined planes (107b) are mutually arranged oppositely with the valve stem spacing face (106d).
4. electric expansion valve according to claim 3, which is characterized in that be internally provided in the valve rod (107)
One end of one spring (119), first spring (119) is connected to the lower end of the protrusion (1063), first spring
(119) the other end is abutted against with the valve seat core (117).
5. electric expansion valve according to claim 1, which is characterized in that the seat portion is fixed with guide part (108), institute
The outer edge for stating valve rod (106) is fixedly connected with retaining ring (112), is arranged between the retaining ring (112) and the guide part (108)
There are second spring (113).
6. electric expansion valve according to claim 5, which is characterized in that the guide part (108) has bottom (108b)
And it is opened in the through-hole (108c) at the center the bottom (108b), opening is additionally provided in the inner edge portion of the through-hole (108c)
Runner (108a).
7. electric expansion valve according to claim 1, which is characterized in that the seat portion is formed by cavity fixed company
Be connected to valve chamber noise elimination part (115), the valve chamber noise elimination part (115) is arranged far from the side of the first adapter tube (111a), and with institute
The first adapter tube (111a) is stated to be arranged oppositely.
8. electric expansion valve according to claim 7, which is characterized in that the valve chamber noise elimination part (115) is provided with step
Portion (115a) is provided with locating slot in the seat portion, and the stage portion (115a) is mounted in the locating slot, to fix
State valve chamber noise elimination part (115).
9. electric expansion valve according to claim 1, which is characterized in that be provided on the valve rod (106) perforative small
Hole (106e).
10. a kind of refrigeration system, comprising: electric expansion valve, which is characterized in that the electric expansion valve is in claim 1 to 9
Described in any item electric expansion valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798166.6A CN109469997B (en) | 2017-09-07 | 2017-09-07 | Refrigerating system and electronic expansion valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798166.6A CN109469997B (en) | 2017-09-07 | 2017-09-07 | Refrigerating system and electronic expansion valve thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109469997A true CN109469997A (en) | 2019-03-15 |
| CN109469997B CN109469997B (en) | 2021-10-29 |
Family
ID=65657547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710798166.6A Active CN109469997B (en) | 2017-09-07 | 2017-09-07 | Refrigerating system and electronic expansion valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469997B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500434A (en) * | 2019-09-25 | 2019-11-26 | 江西鸥迪铜业有限公司 | A kind of spool for electric expansion valve |
| CN112303967A (en) * | 2019-07-26 | 2021-02-02 | 株式会社鹭宫制作所 | Expansion valve and refrigeration cycle system |
| CN114352741A (en) * | 2022-01-20 | 2022-04-15 | 广东威灵电机制造有限公司 | Electronic expansion valve, refrigeration equipment and automobile |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893097A (en) * | 2009-05-22 | 2010-11-24 | 浙江三花股份有限公司 | Electromagnetic valve and electromagnetic valve element |
| CN203926814U (en) * | 2014-06-17 | 2014-11-05 | 洪诗权 | A kind of novel cutoff valve |
| KR101543158B1 (en) * | 2014-04-28 | 2015-08-07 | 현대자동차주식회사 | Expanded Chamber type Anti Surge Valve and Vehicle Turbo Charger System thereby |
| CN204610990U (en) * | 2015-04-21 | 2015-09-02 | 浙江金玉管业有限公司 | A kind of noise reduction one-way valve |
| CN205939839U (en) * | 2016-06-23 | 2017-02-08 | 盾安环境技术有限公司 | Thermal expansion valve |
| CN106641430A (en) * | 2016-10-12 | 2017-05-10 | 诸暨市亿霸电子阀门有限公司 | Novel electronic expansion valve |
| CN106766418A (en) * | 2015-11-20 | 2017-05-31 | 新昌县儒岙镇锦云机械厂 | Screw-driven formula electric expansion valve |
| CN106895153A (en) * | 2015-12-19 | 2017-06-27 | 浙江三花智能控制股份有限公司 | Two-period form electric expansion valve |
-
2017
- 2017-09-07 CN CN201710798166.6A patent/CN109469997B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893097A (en) * | 2009-05-22 | 2010-11-24 | 浙江三花股份有限公司 | Electromagnetic valve and electromagnetic valve element |
| KR101543158B1 (en) * | 2014-04-28 | 2015-08-07 | 현대자동차주식회사 | Expanded Chamber type Anti Surge Valve and Vehicle Turbo Charger System thereby |
| CN203926814U (en) * | 2014-06-17 | 2014-11-05 | 洪诗权 | A kind of novel cutoff valve |
| CN204610990U (en) * | 2015-04-21 | 2015-09-02 | 浙江金玉管业有限公司 | A kind of noise reduction one-way valve |
| CN106766418A (en) * | 2015-11-20 | 2017-05-31 | 新昌县儒岙镇锦云机械厂 | Screw-driven formula electric expansion valve |
| CN106895153A (en) * | 2015-12-19 | 2017-06-27 | 浙江三花智能控制股份有限公司 | Two-period form electric expansion valve |
| CN205939839U (en) * | 2016-06-23 | 2017-02-08 | 盾安环境技术有限公司 | Thermal expansion valve |
| CN106641430A (en) * | 2016-10-12 | 2017-05-10 | 诸暨市亿霸电子阀门有限公司 | Novel electronic expansion valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303967A (en) * | 2019-07-26 | 2021-02-02 | 株式会社鹭宫制作所 | Expansion valve and refrigeration cycle system |
| CN110500434A (en) * | 2019-09-25 | 2019-11-26 | 江西鸥迪铜业有限公司 | A kind of spool for electric expansion valve |
| CN110500434B (en) * | 2019-09-25 | 2024-05-28 | 江西鸥迪铜业有限公司 | Valve core for electronic expansion valve |
| CN114352741A (en) * | 2022-01-20 | 2022-04-15 | 广东威灵电机制造有限公司 | Electronic expansion valve, refrigeration equipment and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109469997B (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109469997A (en) | Refrigeration system and its electric expansion valve | |
| JP5696093B2 (en) | Motorized valve | |
| JP5480753B2 (en) | Motorized valve | |
| JP6370269B2 (en) | Motorized valve and refrigeration cycle | |
| CN101358656B (en) | Needle valve and refrigerating cycle device with the needle valve | |
| WO2019179517A1 (en) | Electronic expansion valve | |
| JP2008232290A (en) | Needle valve, and refrigerating cycle device having the same | |
| CN101311588B (en) | Needle valve and refrigerating cycle device with the needle valve | |
| JP4570473B2 (en) | Valve device and refrigeration cycle device | |
| CN104179878B (en) | A kind of self-cooling type MR damper | |
| JP2012082896A (en) | Motor-operated valve | |
| US11473820B2 (en) | Air conditioning system and electronic expansion valve thereof | |
| WO2015062422A1 (en) | Electronic expansion valve | |
| CN109751428A (en) | Electric expansion valve | |
| CN109520183A (en) | Electric expansion valve | |
| WO2019109932A1 (en) | Electronic expansion valve and cooling system having same | |
| CN110836270B (en) | Electronic expansion valve | |
| CN204061699U (en) | A kind of self-cooling type MR damper | |
| CN109469768A (en) | Refrigeration system and its electric expansion valve | |
| CN106679247B (en) | Electronic expansion valve of air conditioning system for vehicle | |
| JP4693403B2 (en) | Shut-off valve, kit having shut-off valve, and expansion valve | |
| CN104235258B (en) | A kind of magnetorheological damper for automotive suspension | |
| CN110036225B (en) | Electrically operated valve and cooling system using electrically operated valve | |
| CN204083044U (en) | A kind of magnetorheological damper for automotive suspension | |
| CN106481822B (en) | Flow control valve, heat pump system and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |