CN103574062A - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN103574062A CN103574062A CN201210278249.XA CN201210278249A CN103574062A CN 103574062 A CN103574062 A CN 103574062A CN 201210278249 A CN201210278249 A CN 201210278249A CN 103574062 A CN103574062 A CN 103574062A
- Authority
- CN
- China
- Prior art keywords
- valve
- electric expansion
- valve body
- expansion valve
- tapering
- 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
Images
Classifications
-
- 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
- F16K1/02—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 with screw-spindle
- F16K1/04—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 with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
-
- 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
- F16K1/38—Valve members of conical shape
-
- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
-
- 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
-
- 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)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention provides an electronic expansion valve which comprises a shell, a valve body, two distribution pipes, a control component and a valve rod, wherein the valve body is partially arranged in the shell; the first end of the valve body is positioned in the shell; the second end of the valve body extends out of the shell and is provided with a valve hole; the two distribution pipe are connected to the valve body; the control component is arranged in the shell; the valve rod is inserted into the valve body in a manner of moving along the axial direction of the valve body; the first end of the valve rod is connected with the control component, and the second end of the valve rod is matched with the valve hole; the valve rod is provided with a first position for plugging the valve hole and allowing the two distribution pipes to be disconnected and a second position for allowing the two distribution pipes to be communicated; the diameter of the valve hole is 0.8-1.2 mm; the diameters of the distribution pipes are 4-6 mm. The electronic expansion valve disclosed by the invention is low in flower and more suitable for the use of a refrigerant R32.
Description
Technical field
The present invention relates to expansion valve technical field, in particular to a kind of electric expansion valve.
Background technique
The throttling arrangement using in frequency-conversion air-conditioning system mostly now is electric expansion valve, the action principle of electric expansion valve is for regulating the volume of the cooling medium that flows to vaporizer, be that liquid supply rate in control system is to guarantee supplying with most suitable volume of the cooling medium to vaporizer, make full use of the area of vaporizer, guarantee the stable operation of refrigeration system.
In the prior art, the valve opening size of the electric expansion valve of the domestic air conditioning of employing R410A refrigeration agent has several specifications such as 1.8mm, 1.6mm, 1.4mm, 1.3mm, and the excessive problem of flow all can occur the electric expansion valve of these specifications when adopting R32 refrigeration agent.
Summary of the invention
The present invention aims to provide a kind of electric expansion valve, to solve the excessive problem of flow of electronic expansion valve in prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of electric expansion valve, having comprised: housing; Valve body, is partly arranged in housing, and the first end of valve body is positioned at housing, and the second end of valve body extends housing, and the second end of valve body has valve opening; Two pipe arrangements, two pipe arrangements are all connected on valve body; Control unit, is arranged in housing; Valve rod, along valve axis direction, be located in movably in valve body, the first end of valve rod is connected with control unit, and the second end of valve rod matches with valve opening, and valve rod has shutoff valve opening and makes two pipe arrangements primary importance not communicating and the second place of dodging valve opening and two pipe arrangements being communicated; The diameter of valve opening is between 0.8 to 1.2mm, and the diameter of pipe arrangement is between 4 to 6mm.
Further, the second end of valve rod forms needle, and needle comprises the first tapering and the second tapering, and the second tapering is arranged on the outside in the first tapering, and the height in the first tapering is between 1.4 to 2.4mm, and the scope of first cone angle in the first tapering is between 1 ° to 5 °.
Further, the scope of second cone angle beta in the second tapering is between 35 ° to 90 °.
Further, between the second tapering and the first tapering, be connected with columnar portion.
Further, the second end of valve body is provided with the first radial wall, the middle part of valve body is provided with the second radial wall, the sidewall of valve body, the first radial wall and the second radial wall surround valve chamber, the first radial wall is provided with valve opening, the second radial wall is provided with the axial hole that holds valve rod, and a pipe arrangement in two pipe arrangements is connected with valve chamber, and another pipe arrangement in two pipe arrangements is selectively connected with valve chamber by valve opening.
Further, valve body comprises valve body body and the valve seat that is arranged on valve body body one end, and valve seat forms the first radial wall.
Further, control unit comprises: magnet rotor, is connected on the inwall of housing; Thread spindle, has outside thread, and the first end of thread spindle is connected with magnet rotor, and the second end of thread spindle has the blind hole of holding, and the first end of valve rod is arranged on and holds in blind hole; Nut, is spirally connected with thread spindle, and nut is fixedly connected on valve body.
Further, electric expansion valve of the present invention also comprises the first retaining assembly, and the first retaining assembly comprises: apical axis, is connected with the roof of housing; The first spring, is set on apical axis; Locating stud, L-shaped, comprise vertically section and a horizontal segment, horizontal segment is fixedly connected on thread spindle; The second spring, is set on apical axis, and vertical section of the first end of the second spring and locating stud is fixedly linked, and the second end of the second spring is fixed in the intercept groove of the first spring.
Further, electric expansion valve of the present invention also comprises the second retaining assembly, and the second retaining assembly comprises: limiting stopper, is arranged on holding in blind hole of thread spindle; The 3rd spring, is arranged between limiting stopper and the first end of valve rod.
Further, be provided with the supporting portion of support housing on valve body, supporting portion week is connected with the bracket of support housing laterally.
Those skilled in the art will know that, due to R32 good refrigeration effect, molecular weight is low, therefore adopt the groundwater increment of the system of R32 refrigeration agent to be less than the groundwater increment of the system that adopts R410A refrigeration agent, therefore, the electric expansion valve of the present embodiment is in order to adapt to the refrigeration agent of R32, reduced the diameter dimension of valve opening and pipe arrangement, by reducing the circulation area of electric expansion valve, reach the object of the flow that reduces electric expansion valve, and then make the use of the more applicable R32 refrigeration agent of electric expansion valve of the present embodiment, when the diameter of valve opening is between 0.8 to 1.2mm, the diameter of pipe arrangement is between 4 to 6mm time, can make electric expansion valve within the scope of 0 to 330p aperture, reach the effect that circulation area is little, and circulation area is controlled effectively within the scope of this aperture, when aperture is 330 to 500 time, can tune up rapidly the circulation area of electric expansion valve, to meet the demand of peak rate of flow.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the embodiment's one of electric expansion valve of the present invention cross-sectional schematic;
The master of needle that Fig. 2 shows the electric expansion valve of Fig. 1 looks schematic diagram;
Fig. 3 shows the cross-sectional schematic of valve seat of the electric expansion valve of Fig. 1;
Fig. 4 shows the needle of electric expansion valve and the schematic diagram that coordinates of valve seat of Fig. 1;
Fig. 5 shows the schematic diagram that is related between the cold medium flux of electric expansion valve and circulation area;
Fig. 6 shows the schematic diagram that is related between the valve opening diameter of electric expansion valve of Fig. 1 and circulation area;
Fig. 7 shows the schematic diagram that is related between the height in the first tapering of electric expansion valve of Fig. 1 and circulation area;
Fig. 8 shows the schematic diagram that is related between the first cone angle of electric expansion valve of Fig. 1 and circulation area;
Fig. 9 shows the schematic diagram that is related between the second cone angle beta of electric expansion valve of Fig. 1 and circulation area;
Figure 10 shows the Contrast on effect schematic diagram of the circulation area of electric expansion valve in the electric expansion valve of Fig. 1 and prior art;
Figure 11 shows the Contrast on effect schematic diagram of the air mass flow of electric expansion valve in the electric expansion valve of Fig. 1 and prior art;
Figure 12 shows embodiment two needle and the schematic diagram that coordinates of valve seat of electric expansion valve of the present invention; And
Figure 13 shows the effect schematic diagram of circulation area of the electric expansion valve of Figure 12.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 1 shows the embodiment's one of electric expansion valve of the present invention cross-sectional schematic, referring to Fig. 1, as can be seen from the figure, the electric expansion valve of the present embodiment comprises housing 10, valve body 20, pipe arrangement 30, control unit and valve rod 41, wherein, the first end of valve body 20 is arranged in housing 10, the second end of valve body 20 extends housing 10, the second end of valve body 20 has the valve opening 21 of diameter between 0.8 to 1.2mm, pipe arrangement 30 is two, two pipe arrangements are all connected on valve body 20, and the diameter of pipe arrangement 30 is between 4 to 6mm.Control unit is arranged in housing 10, be connected with the first end of valve rod 41, the second end of valve rod 41 matches with valve opening 21, and whole valve rod 41 can move along the axial direction of valve body 20, and valve rod 41 has the primary importance of shutoff valve opening 21 and dodges the second place of valve opening 21.
Those skilled in the art will know that, due to R32 good refrigeration effect, molecular weight is low, therefore adopt the groundwater increment of the system of R32 refrigeration agent to be less than the groundwater increment of the system that adopts R410A refrigeration agent, therefore, the electric expansion valve of the present embodiment is in order to adapt to the refrigeration agent of R32, reduced the diameter dimension of valve opening 21 with pipe arrangement 30, by reducing the circulation area of electric expansion valve, reach the object of the flow that reduces electric expansion valve, and then make the use of the more applicable R32 refrigeration agent of electric expansion valve of the present embodiment, when the diameter of valve opening 21 is between 0.8 to 1.2mm, the diameter of pipe arrangement 30 is between 4 to 6mm time, can make electric expansion valve within the scope of 0 to 330p aperture, reach the effect that circulation area is little, and circulation area is controlled effectively within the scope of this aperture, when aperture is 330 to 500 time, can tune up rapidly the circulation area of electric expansion valve, to meet the demand of peak rate of flow.
The second end for the ease of valve rod 41 coordinates with valve opening 21, and the second end of valve rod 41 forms needle.As shown in Figure 2, needle comprises the first tapering 411 and is arranged on second tapering 412 in 411 outsides, the first tapering, between the first tapering 411 and valve body 20, be also provided with the 3rd tapering for being connected, wherein, the height in the first tapering 411 is between 1.4 to 2.4mm, and the first cone angle that obtains the first tapering 411 according to formula S=π * h*sin (α/2) * (D-h/2*sin α) is between 1 ° to 5 °, wherein S is flow area area, h is valve rod lift, D is valve opening diameter, and α is needle cone angle.Second cone angle beta in the second tapering 412 is determined between 35 ° to 90 ° through testing, the requirement that can tune up rapidly under specific circumstances to meet electric expansion valve.The first tapering 411 like this and the setting in the second tapering 412, the control of the flow that can meet electric expansion valve in a larger scope.
The electric expansion valve of the present embodiment, the second end at valve body 20 is provided with the first radial wall, the middle part of valve body 20 is provided with the second radial wall, the sidewall of valve body 20, the first radial wall and the second radial wall surround valve chamber, the first radial wall is provided with valve opening 21, the second radial walls and is provided with the axial hole that holds described valve rod 41, and the first end of valve rod 41 wore through hole, needle coordinates with valve opening 21, and the setting of through hole and valve opening makes the valve rod 41 can axially moving along valve body 20.A pipe arrangement in two pipe arrangements 30 is communicated with valve chamber, and another pipe arrangement 30 is selectively communicated with valve chamber by valve opening 21.Arranging of valve chamber can be that electric expansion valve carries out the flow control of refrigeration agent accurately.As shown in Figure 3, preferably, valve body 20 comprises valve body body and is arranged on the valve seat 23 of valve body body one end, and valve seat 23 forms the first radial walls, at valve opening 21, near one end of needle, is provided with the matching hole coordinating with the 3rd tapering.On valve body 20, be also provided with the bracket 48 that is connected with laterally support housing 10 week of the ， supporting portion, supporting portion of support housing 10.
The control unit of the electric expansion valve of the present embodiment comprises magnet rotor 42, thread spindle 43 and nut 44, wherein magnet rotor 42 is connected on the inwall of housing 10, thread spindle 43 has outside thread, the first end of thread spindle 43 is connected with magnet rotor 42, the second end of thread spindle 43 has the blind hole of holding of holding valve rod 41 first ends, the outside of thread spindle 43 is bolted with nut 44, this nut 44 is fixedly connected on valve body 20, when magnet rotor 42 turn-on current, controlling thread spindle 43 rotates, it is that thread spindle 43 axially moves along it that the thread spindle 43 rotating coordinates with nut 44, the motion of thread spindle 43 has driven the motion of the screw rod being connected with thread spindle 43, screw rod can be moved between primary importance and second, as shown in Figure 4, when needle is positioned at primary importance, needle blocks valve opening 21, refrigeration agent does not circulate in valve opening 21, when needle is positioned at the second place, needle is dodged valve opening 21 completely, makes the flow of electric expansion valve reach maximum.
For preventing that valve rod 41 from exceeding the second place, the electric expansion valve of the present embodiment also comprises two groups of retaining assemblies, the first retaining assembly comprises apical axis 11, the first spring 12, locating stud 13 and the second spring 14, apical axis 11 is connected with the roof 15 of housing 10, the first spring 12 is set on apical axis 11, locating stud 13 is L-shaped, comprises vertically section and a horizontal segment, and horizontal segment is fixedly connected on thread spindle 43; The second spring 14 is set on apical axis 11, and its first end is connected with the vertical end of locating stud 13, and the second end is arranged in the intercept groove of the first spring 12.The second positioning component comprise be arranged on thread spindle 43 hold the limiting stopper 45 in blind hole and be arranged on limiting stopper 45 and the first end of valve rod 41 between the 3rd spring 46.Wherein, the maximum displacement of threaded stem that the first retaining assembly is spacing, the maximum displacement of valve rod 41 that the second retaining assembly is spacing, the first retaining assembly and the second retaining assembly acting in conjunction, prevent that valve rod 41 from exceeding the second place.
In embodiment two, from the different settings that are needle of above-described embodiment, the needle in embodiment two also comprises the columnar portion 413 being arranged between the first tapering 411 and the second tapering 412.As shown in figure 12, this set of the second needle, make needle when being positioned at the second place, part columnar portion 413 and the second tapering 412 are stayed in valve opening 21, reduced the circulation area of valve opening 21, make embodiment two the flow of electric expansion valve less, and can in a larger scope, to flow, control, for example, in the refrigeration system of more applicable relative complex (tonifying Qi increases enthalpy system).
In the present embodiment, the definite of parameters completes by test, and Fig. 6 to Figure 11 shows the relation between circulation area and other parameters, and Figure 13 shows the relation between air mass flow and aperture.Rule of thumb formula, has M=C
da(2 ρ Δ P)
1/2, wherein, M represents cold medium flux, A is circulation area, C
dfor flow coefficient, ρ be refrigerant in the density of ingress, Δ P is the pressure reduction before and after throttling, wherein the relation between cold medium flux and circulation area is as shown in Figure 5, visible, and cold medium flux increases along with the increase of circulation area, therefore, want to reduce the circulation area that cold medium flux will reduce refrigerant.Fig. 6 to Fig. 9 shows pipe arrangement 30 diameters, needle height, the impact of second cone angle beta in first cone angle in the first tapering 411 and the second tapering 412 on circulation area, from figure, can learn, for meeting the requirement of small flow, and consider the factors such as the reliability of part and processes, and the dimension D of valve opening 21 is set between 0.8mm ~ 1.2mm, the diameter dimension d of pipe arrangement 30 is set between 4mm ~ 6mm; The requirement that can effectively control small flow a larger scope for meeting electric expansion valve, needle will have one section of long enough (1.4≤H≤2.4mm) and the less line style of the first cone angle; For meeting the requirement that can tune up rapidly when the particular case, second cone angle beta in the second tapering 412 should be larger.
Figure 10 shows electric expansion valve in the present embodiment and the Contrast on effect of electric expansion valve of the prior art, D=1.65 wherein, α=9 °, H=1.95, β=65 ° and D=1.3, α=7 °, H=1.75, what the curve of β=55 ° adopted is electric expansion valve of the prior art, D=1.2, α=5 °, H=1.4, β=35 °, D=1.0, α=3 °, H=1.9, β=55 ° and D=0.8, α=1 °, H=2.4, the curve of β=90 ° is the curve of the electric expansion valve in this example, can find out, curve D=1.2, α=5 °, H=1.4, during β=35 °, electric expansion valve circulation area is maximum and have minimum scope effectively to regulate flow, curve is D=1.0, α=3 °, H=1.9, during β=55 °, electric expansion valve circulation area is moderate and have moderate scope effectively to regulate flow, curve is D=0.8, α=1 °, H=2.4, β=90 ° electric expansion valve circulation area is minimum and have maximum scope effectively to regulate flow, in conjunction with above-mentioned curve, can find out, the circulation area of the electric expansion valve of the present embodiment is little, in 25 to 400p scope, can effectively control, and can in 400 to 500p scope, tune up rapidly.It is D=1.3 that Figure 12 shows curve in Figure 11, α=7 °, H=1.75, β=55 ° and curve are D=1.0, α=3 °, H=1.9, the air mass flow of β=55 ° and the relation curve of aperture, visible, the air mass flow that the electric expansion valve of the present embodiment is 300 o'clock in aperture is equivalent to aperture of the prior art the air mass flow of 100 o'clock, and the flow of the electronic expansion of visible the present embodiment is less and can to small flow, control effectively a larger scope.Figure 13 shows circulation area under the line style of embodiment two needle and the relation of aperture, and visible embodiment's two electric expansion valve meets flow requirement less and that can effectively control flow a larger scope, meets peak rate of flow requirement simultaneously.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an electric expansion valve, comprising:
Housing (10);
Valve body (20), partly be arranged in described housing (10), the first end of described valve body (20) is positioned at described housing (10), and the second end of described valve body (20) extends described housing (10), and the second end of described valve body (20) has valve opening (21);
Two pipe arrangements (30), described two pipe arrangements (30) are all connected on described valve body (20);
Control unit, is arranged in described housing (10);
Valve rod (41), along described valve body (20) axial direction, be located in movably in described valve body (20), the first end of described valve rod (41) is connected with described control unit, the second end of described valve rod (41) matches with described valve opening (21), and described valve rod (41) has valve opening (21) described in shutoff and makes the primary importance that described two pipe arrangements (30) do not communicate and the second place of dodging described valve opening (21) and described two pipe arrangements (30) being communicated;
It is characterized in that, the diameter of described valve opening (21) is between 0.8 to 1.2mm, and the internal diameter of described pipe arrangement (30) is between 4 to 6mm.
2. electric expansion valve according to claim 1, it is characterized in that, the second end of described valve rod (41) forms needle, described needle comprises the first tapering (411) and the second tapering (412), described the second tapering (412) is arranged on the outside in described the first tapering (411), the height in described the first tapering (411) is between 1.4 to 2.4mm, and the scope of first cone angle in described the first tapering (411) is between 1 ° to 5 °.
3. electric expansion valve according to claim 2, is characterized in that, the scope of second cone angle beta in described the second tapering (412) is between 35 ° to 90 °.
4. electric expansion valve according to claim 2, is characterized in that, between described the second tapering (412) and described the first tapering (411), is connected with columnar portion (413).
5. electric expansion valve according to claim 1, it is characterized in that, the second end of described valve body (20) is provided with the first radial wall, the middle part of described valve body (20) is provided with the second radial wall, the sidewall of described valve body (20), described the first radial wall and the second radial wall surround valve chamber, described the first radial wall is provided with described valve opening (21), described the second radial wall is provided with the axial hole that holds described valve rod (41), a pipe arrangement in described two pipe arrangements (30) is connected with described valve chamber, another pipe arrangement in described two pipe arrangements (30) is selectively connected with described valve chamber by described valve opening (21).
6. electric expansion valve according to claim 5, is characterized in that, described valve body (20) comprises valve body body and the valve seat (23) that is arranged on described valve body body one end, and described valve seat (23) forms described the first radial wall.
7. electric expansion valve according to claim 1, is characterized in that, described control unit comprises:
Magnet rotor (42), is connected on the inwall of described housing (10);
Thread spindle (43), has outside thread, and the first end of described thread spindle (43) is connected with described magnet rotor (42), and the second end of described thread spindle (43) has the blind hole of holding, and described in the first end of described valve rod (41) is arranged on, holds in blind hole;
Nut (44), is spirally connected with described thread spindle (43), and described nut (44) is fixedly connected on described valve body (20).
8. electric expansion valve according to claim 7, is characterized in that, also comprises the first retaining assembly, and described the first retaining assembly comprises:
Apical axis (11), is connected with the roof (15) of described housing (10);
The first spring (12), is set on described apical axis (11);
Locating stud (13), L-shaped, comprise vertically section and a horizontal segment, described horizontal segment is fixedly connected on described thread spindle (43);
The second spring (14), be set on described apical axis (11), vertical section of the first end of described the second spring (14) and described locating stud (13) is fixedly linked, and the second end of described the second spring (14) is fixed in the intercept groove of described the first spring (12).
9. electric expansion valve according to claim 7, is characterized in that, also comprises the second retaining assembly, and described the second retaining assembly comprises:
Limiting stopper (45), is arranged on holding in blind hole of described thread spindle (43);
The 3rd spring (46), is arranged between described limiting stopper (45) and the first end of described valve rod (41).
10. electric expansion valve according to claim 1, is characterized in that, is provided with the supporting portion of supporting described housing (10) on described valve body (20), is connected with laterally the bracket (48) that supports described housing (10) described supporting portion week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278249.XA CN103574062B (en) | 2012-08-06 | 2012-08-06 | Electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278249.XA CN103574062B (en) | 2012-08-06 | 2012-08-06 | Electric expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574062A true CN103574062A (en) | 2014-02-12 |
| CN103574062B CN103574062B (en) | 2016-10-05 |
Family
ID=50046502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210278249.XA Active CN103574062B (en) | 2012-08-06 | 2012-08-06 | Electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103574062B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061363A (en) * | 2014-06-11 | 2014-09-24 | 珠海格力电器股份有限公司 | Limit structure and electronic expansion valve |
| CN104165233A (en) * | 2014-06-23 | 2014-11-26 | 珠海格力电器股份有限公司 | Flow inlet structure, pressure drop device and air conditioner |
| 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 |
| CN106884996A (en) * | 2015-12-16 | 2017-06-23 | 浙江三花制冷集团有限公司 | Electric expansion valve and its valve element |
| JP2018021600A (en) * | 2016-08-03 | 2018-02-08 | トーステ株式会社 | Control valve for steam |
| CN107735629A (en) * | 2015-04-01 | 2018-02-23 | 马勒国际有限公司 | Heat exchanger or freezer unit |
| CN108731313A (en) * | 2018-06-25 | 2018-11-02 | 宁波奥克斯电气股份有限公司 | expansion valve control method and air conditioner |
| CN109424763A (en) * | 2017-08-21 | 2019-03-05 | 浙江盾安机械有限公司 | Triple valve |
| CN109424750A (en) * | 2017-08-28 | 2019-03-05 | 浙江盾安机械有限公司 | A kind of electric expansion valve and its assembling scheme |
| WO2023030409A1 (en) * | 2021-09-02 | 2023-03-09 | 浙江盾安人工环境股份有限公司 | Valve needle and electronic expansion valve having same |
| WO2023051824A1 (en) * | 2021-09-30 | 2023-04-06 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10253199A (en) * | 1997-03-11 | 1998-09-25 | Fuji Koki Corp | Thermal expansion valve |
| CN1766377A (en) * | 2004-10-28 | 2006-05-03 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN101086296A (en) * | 2006-06-07 | 2007-12-12 | 株式会社Tgk | Expansion valve |
| JP2010019406A (en) * | 2008-07-14 | 2010-01-28 | Fuji Koki Corp | Motor-driven valve |
| CN101943292A (en) * | 2007-01-26 | 2011-01-12 | 株式会社不二工机 | Expansion valve |
| CN202158703U (en) * | 2011-06-02 | 2012-03-07 | 上海俊乐制冷自控元件有限公司 | Straight-through electronic expansion valve |
| CN102384311A (en) * | 2010-08-25 | 2012-03-21 | 株式会社鹭宫制作所 | Electrically-operated valve |
| CN202708102U (en) * | 2012-08-06 | 2013-01-30 | 珠海格力电器股份有限公司 | Electric expansion valve |
-
2012
- 2012-08-06 CN CN201210278249.XA patent/CN103574062B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10253199A (en) * | 1997-03-11 | 1998-09-25 | Fuji Koki Corp | Thermal expansion valve |
| CN1766377A (en) * | 2004-10-28 | 2006-05-03 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN101086296A (en) * | 2006-06-07 | 2007-12-12 | 株式会社Tgk | Expansion valve |
| CN101943292A (en) * | 2007-01-26 | 2011-01-12 | 株式会社不二工机 | Expansion valve |
| JP2010019406A (en) * | 2008-07-14 | 2010-01-28 | Fuji Koki Corp | Motor-driven valve |
| CN102384311A (en) * | 2010-08-25 | 2012-03-21 | 株式会社鹭宫制作所 | Electrically-operated valve |
| CN202158703U (en) * | 2011-06-02 | 2012-03-07 | 上海俊乐制冷自控元件有限公司 | Straight-through electronic expansion valve |
| CN202708102U (en) * | 2012-08-06 | 2013-01-30 | 珠海格力电器股份有限公司 | Electric expansion valve |
Non-Patent Citations (1)
| Title |
|---|
| 陈佑华 陈芝久: "制冷装置中膨胀阀的对比研究", 《制冷学报》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061363A (en) * | 2014-06-11 | 2014-09-24 | 珠海格力电器股份有限公司 | Limit structure and electronic expansion valve |
| CN104165233A (en) * | 2014-06-23 | 2014-11-26 | 珠海格力电器股份有限公司 | Flow inlet structure, pressure drop device and air conditioner |
| CN107735629A (en) * | 2015-04-01 | 2018-02-23 | 马勒国际有限公司 | Heat exchanger or freezer unit |
| CN106884996A (en) * | 2015-12-16 | 2017-06-23 | 浙江三花制冷集团有限公司 | Electric expansion valve and its valve element |
| CN106884996B (en) * | 2015-12-16 | 2021-11-19 | 浙江三花制冷集团有限公司 | Electronic expansion valve and valve core thereof |
| JP2018021600A (en) * | 2016-08-03 | 2018-02-08 | トーステ株式会社 | Control valve for steam |
| 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 |
| CN106641430B (en) * | 2016-10-12 | 2024-04-26 | 诸暨市亿霸电子阀门有限公司 | Novel electronic expansion valve |
| CN109424763A (en) * | 2017-08-21 | 2019-03-05 | 浙江盾安机械有限公司 | Triple valve |
| CN109424750B (en) * | 2017-08-28 | 2022-06-17 | 浙江盾安机械有限公司 | Electronic expansion valve and assembling method thereof |
| CN109424750A (en) * | 2017-08-28 | 2019-03-05 | 浙江盾安机械有限公司 | A kind of electric expansion valve and its assembling scheme |
| CN108731313A (en) * | 2018-06-25 | 2018-11-02 | 宁波奥克斯电气股份有限公司 | expansion valve control method and air conditioner |
| CN108731313B (en) * | 2018-06-25 | 2020-07-31 | 宁波奥克斯电气股份有限公司 | Expansion valve control method and air conditioner |
| WO2023030409A1 (en) * | 2021-09-02 | 2023-03-09 | 浙江盾安人工环境股份有限公司 | Valve needle and electronic expansion valve having same |
| WO2023051824A1 (en) * | 2021-09-30 | 2023-04-06 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103574062B (en) | 2016-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103574062A (en) | Electronic expansion valve | |
| CN202708102U (en) | Electric expansion valve | |
| CN103388688B (en) | Mortor operated valve | |
| CN207880164U (en) | Electric expansion valve | |
| CN208587515U (en) | Motor-driven valve and refrigerating circulation system | |
| CN104344495A (en) | Control method for compressor exhaust temperature under heating conditions of air conditioner | |
| CN102235782B (en) | Adjustable ejector and heat pump air conditioner system adopting same | |
| CN106151554A (en) | Electric expansion valve, the manufacture method of electric expansion valve and refrigerant system | |
| US10119735B2 (en) | Electronic expansion valve | |
| CN106151552A (en) | Electric expansion valve and refrigerant system thereof | |
| CN204201205U (en) | Pressure regulator valve | |
| CN204164453U (en) | Electric expansion valve | |
| CN204113582U (en) | A kind of damping outlet pipe | |
| CN103471294B (en) | Based on the part flow arrangement of multi-connected air conditioning system noise reduction | |
| CN201891901U (en) | Electronic expansion valve | |
| CN203516797U (en) | Electronic expansion valve | |
| CN204114161U (en) | Electric expansion valve | |
| CN103542645A (en) | Thermostatic expansion valve with one-way control function | |
| CN203928516U (en) | A kind of air-conditioning voltage stabilizing throttling arrangement and air-conditioner | |
| CN105091428A (en) | Capillary matching device and air conditioner | |
| CN201819486U (en) | Adjustable injector and heat pump air conditioner system therewith | |
| CN102338240B (en) | Heat-exchange device and solenoid valve thereof | |
| CN204438622U (en) | A kind of machine automatization expansion valve | |
| CN101566236B (en) | thermostatic expansion valve | |
| CN202065523U (en) | Thermal expansion valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |