CN102410395A - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN102410395A CN102410395A CN2010102909453A CN201010290945A CN102410395A CN 102410395 A CN102410395 A CN 102410395A CN 2010102909453 A CN2010102909453 A CN 2010102909453A CN 201010290945 A CN201010290945 A CN 201010290945A CN 102410395 A CN102410395 A CN 102410395A
- Authority
- CN
- China
- Prior art keywords
- slip ring
- electric expansion
- mandrel
- expansion valve
- guide rail
- 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
- 210000005056 cell body Anatomy 0.000 claims description 24
- 238000005516 engineering process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
-
- 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)
- Mechanically-Actuated Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an electronic expansion valve, which comprises a casing (1), a magnet (2) and a screw rod (3); the electronic expansion valve also comprises a spindle (4) arranged in the casing, the outside of the spindle (4) is provided with a guide way (5), and a slide ring (6) is fitted on the guide way; one of the guide way (5) and the spindle (4) is connected with the screw rod (3) and rotates along with the screw rod (3), the other one is connected with the casing (1), and moreover, the guide way (5) is connected with the screw rod (3) or the casing (1) through a positioning part; and the slide ring (6) is connected with the spindle (4), can move along the axial direction of the spindle (4), and is fixed along the circumference of the spindle (4) in order to limit the rotation turns of the guide way (5) or the spindle (4). On the basis of guaranteeing the reliability of operation, the height of the valve body of the electronic expansion valve can be effectively reduced, and thereby the electronic expansion valve is miniaturized.
Description
Technical field
The present invention relates to the fluid control component technical field, particularly a kind of electric expansion valve.
Background technique
Idle call electronics expansion valve is made up of stepper motor, thread mechanism, stop dog part, needle valve port flow control device four big main parts.Wherein stop dog part partly is made up of fixed block and movable part two, and movable part is being fixed on the magnet, can circumferentially rotate and axially up-down with magnet.Fixed block cooperates with movable part, and its function is the stroke that is used for limiting thread mechanism and the axial up-down of needle, prevents the excessive rising of thread mechanism and needle or descend to cause losing the function of Flow-rate adjustment.Idle call electronics expansion valve generally is used on the outdoor unit of frequency converting air conditioner; Also need use electric expansion valve on the indoor set of some high-grade air-conditionings in recent years; Yet because some type space of indoor set is narrow and small; Be unfavorable for the electric expansion valve that installation volume is bigger, thereby need badly electric expansion valve is improved, make its volume miniaturization.Below will do concrete the introduction to the structure of electric expansion valve of the prior art.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of electric expansion valve in the existing technology.
Electric expansion valve of the prior art comprise shell 1 ', shell 1 ' in be provided with magnet 2 ', magnet 2 ' with screw mandrel 3 ' be fixedly connected, and along with magnet 2 ' generation is circumferentially rotated, and under the driving of screw-thread fit, screw mandrel 3 ' do vertically elevating movement.As shown in Figure 1, screw mandrel 3 ' below is connected with needle 7 ' 1, along with screw mandrel 3 ' up-down, and the aperture that needle 7 ' 1 is regulated valve port 7 ' 2, thus realize by the purpose of vertical joint pipe 8 ' 1 to horizontal adapter 8 ' 2 Flow-rate adjustment.
As shown in Figure 1, slip ring 6 ' with guide rail 5 ' be sleeved on mandrel 4 ' outside, mandrel 4 ' be fixed on the below of end cap 9 ' 1, guide rail 5 ' comprise retainer 5 ' 1 and following retainer 5 ' 2, and retainer 5 ' 2 and mandrel 4 ' riveted fixing down; Stop rod 9 ' 2 is fixing with screw mandrel 3 ' welding, and stop rod 9 ' 2 and slip ring 6 ' cooperates, stop rod 9 ' 2 be along with screw mandrel 3 ' rotate, slip ring 6 ' thereupon the center on number of turns (enclosing such as 5.5) that guide rail 5 ' rotation is stipulated; Slip ring 6 ' when turning clockwise; Be stopped at retainer 5 ' 1 in a circumferential direction, slip ring 6 ' when being rotated counterclockwise, be stopped at down retainer 5 ' 2 in a circumferential direction; Through guide rail 5 ' two stop positions up and down; The number of turns of limit magnet 2 ' rotation, and then the lifting travel of control needle 7 ' 1, the aperture scope of control valve port 7 ' 2.Yet, said structure shortcoming specific as follows:
Magnet 2 ' with screw mandrel 3 ' go up must fixed stop bar 9 ' 2, thereby drive slip ring 6 ' around guide rail 5 ' rotation; Because stop rod 9 ' 2 axial dimensions are bigger; And its top is guiding not; Thereby magnet 2 ' shake can drive stop rod 9 ' 2 and shake, for preventing stop rod 9 ' 2 and guide rail 5 ' interfere, stop rod 9 ' 2 and guide rail 5 ' between need to be provided with gap greatly; Thereby by stop rod 9 ' 2, guide rail 5 ', the stop dog part radial dimension of slip ring 6 ' and mandrel 4 ' form is bigger; Thereby can't be whole or major part pack into magnet 2 ' magnet bore 2 ' 1 in, and then cause the height of whole valve body bigger, be unfavorable for realizing the purpose of electric expansion valve volume miniaturization.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of electric expansion valve, and this electric expansion valve can effectively reduce the height of valve body on the basis that guarantees functional reliability, thereby realizes the purpose of electric expansion valve volume miniaturization.
For solving the problems of the technologies described above, the present invention provides a kind of electric expansion valve, comprises shell, is provided with magnet in the said shell, and said magnet is connected with the screw mandrel with its rotation; Said electric expansion valve also comprises the mandrel of being located at said enclosure, and the outside of said mandrel is provided with guide rail, and said guide rail is combined with slip ring; In said guide rail and the said mandrel, one are connected with screw mandrel or said magnet and with its rotation, another person is connected with said shell, and said guide rail all through positioning element and said screw mandrel, said magnet perhaps said shell be connected; Said slip ring and said mandrel are dynamically connected along the axially-displaceable of said mandrel, and fix along the circumferential of said mandrel, so that limit the rotation number of turns of said guide rail or said mandrel.
Preferably, said guide rail is connected through said positioning element with said screw mandrel, and said mandrel is connected with said shell.
Preferably, said positioning element is a setting sleeve, and the underpart of said setting sleeve is set in the outside of said screw mandrel upper end portion, and the underpart of said guide rail is located in the inner chamber of said setting sleeve upper end portion.
Preferably, the underpart of said guide rail is provided with fixing part, and the lower end surface of said setting sleeve offers locating groove, and said fixing part stretches out from said locating groove, and the said fixing part of upper-end surface clamping of the diapire of said locating groove and said screw mandrel.
Preferably, the upper end portion of said setting sleeve further is provided with first retainer that cooperates with said slip ring.
Preferably, said first retainer further is located at the upper end portion of said setting sleeve through rake.
Preferably, said guide rail is connected through said positioning element with said shell, and said mandrel is connected with said screw mandrel.
Preferably, said positioning element is a setting sleeve, and the upper end portion of said setting sleeve is connected with said shell, and the upper end portion of said guide rail is located in the inner chamber of said setting sleeve.
Preferably, the upper end portion of said guide rail is provided with fixing part, and the upper-end surface of said setting sleeve offers locating groove, and said fixing part stretches out from said locating groove, and the roof of the diapire of said locating groove and said shell clamps said fixing part.
Preferably, the underpart of said setting sleeve further is provided with first retainer that cooperates with said slip ring.
Preferably, the upper-end surface of said setting sleeve offers the connection boss, and said setting sleeve is connected with said shell through said connection boss.
Preferably, said fixing part comprises first fixing part, reaches second fixing part that is connected through circular arc part with said first fixing part; Said locating groove comprises first locating groove and second locating groove; Said first fixing part stretches out from said first locating groove, and is around in the sidewall of said setting sleeve through said circular arc part, and said second fixing part inserts in said second locating groove.
Preferably, said mandrel is a sleeve, and the sidewall of said sleeve offers cell body; Said slip ring comprises the slip ring main body portion and is positioned at the slip ring positioning part of said slip ring main body portion one end that said slip ring positioning part is located in the said cell body.
Preferably, said slip ring main body portion is located at the inside of said sleeve, and said slip ring positioning part is stretched out from said cell body and cooperated with first retainer of said positioning element, to limit the rotation number of turns of said screw mandrel.
Preferably, said slip ring main body portion is set in the outside of said sleeve, and said slip ring positioning part is stretched in the said cell body; Said slip ring also comprises the stop pin portion that is positioned at the said slip ring main body portion the other end, and said stop pin portion cooperates with first retainer of said positioning element, to limit the rotation number of turns of said screw mandrel.
Preferably, said sleeve is rolled by the quadrilateral plate and forms, and has the gap between relative two end faces of said plate, and said gap forms said cell body.
Preferably, said mandrel is a sleeve, and the sidewall of said sleeve offers cell body; Said slip ring comprises the slip ring main body portion and is positioned at the slip ring positioning part of said slip ring main body portion one end that said slip ring positioning part is located in the said cell body; The upper-end surface of said sleeve is provided with the connection boss, and said sleeve is connected with said shell through said connection boss.
On the basis of existing technology, in the guide rail and mandrel of electric expansion valve provided by the present invention, one are connected with screw mandrel or magnet and with its rotation; Another person is connected with shell, such as, guide rail is connected with screw mandrel and rotates along circumferential with it; Mandrel is connected with shell, and on this basis, slip ring and mandrel are dynamically connected along the axially-displaceable of mandrel; And along circumferentially fixing of mandrel, so that control the rotation number of turns of said screw mandrel.Particularly, can be provided with first retainer on the said positioning element, the upper end portion of guide rail can be provided with second retainer, and slip ring just moves up and down in the distance between first retainer and second retainer vertically, thus the rotation number of turns of control screw mandrel.
Hence one can see that, and with respect to the described existing technology of preamble, structural design of the present invention directly is fixedly connected with screw mandrel with guide rail; Mandrel be connected with shell (also or mandrel be fixedly connected with screw mandrel; Guide rail is connected with shell), slip ring does not circumferentially rotate along mandrel, but axially moving up and down in certain limit along mandrel; Thereby the rotation number of turns of control screw mandrel; Thereby save the structure of stop rod in the existing technology, the radial dimension of the stop dog part of being made up of guide rail, slip ring and mandrel will significantly reduce, thus this stop dog part can be whole or major part be fitted in the magnet bore of magnet; Thereby effectively reduce the height of valve body, realized the purpose of electric expansion valve volume miniaturization.
Description of drawings
Fig. 1 is the structural representation of a kind of electric expansion valve in the existing technology;
Fig. 2 is among first kind of embodiment of the present invention during the needle standard-sized sheet, the structural representation of electric expansion valve;
Fig. 3 be electric expansion valve among Fig. 2 slip ring and setting sleeve first retainer cooperate schematic representation;
Fig. 4 is among first kind of embodiment of the present invention during the needle full cut-off, the structural representation of electric expansion valve;
Fig. 5 be electric expansion valve among Fig. 4 slip ring and guide rail second retainer cooperate schematic representation;
Fig. 6 is the setting sleeve of electric expansion valve among Fig. 2 and Fig. 4 and the assembling schematic representation of guide rail;
Fig. 7 is the structural representation of the guide rail of electric expansion valve among Fig. 2 and Fig. 4;
Fig. 8 is the structural representation of the setting sleeve of electric expansion valve among Fig. 2 and Fig. 4;
Fig. 9 is among second kind of embodiment of the present invention during the needle standard-sized sheet, the structural representation of electric expansion valve;
Figure 10 be electric expansion valve among Fig. 9 slip ring and setting sleeve first retainer cooperate schematic representation;
Figure 11 is among second kind of embodiment of the present invention during the needle full cut-off, the structural representation of electric expansion valve;
Figure 12 be electric expansion valve among Fig. 9 slip ring and guide rail second retainer cooperate schematic representation;
Figure 13 is the structural representation of the setting sleeve of electric expansion valve among Fig. 9 and Figure 11;
Figure 14 is the guide rail of electric expansion valve among the third embodiment of the present invention and the assembling schematic representation of setting sleeve;
Figure 15 is the structural representation of setting sleeve among the third embodiment of the present invention;
Figure 16 is the structural representation of the third embodiment's middle guide of the present invention;
Figure 17 is the assembling schematic representation of slip ring, guide rail and the mandrel of electric expansion valve among the 4th kind of embodiment of the present invention;
Figure 18 is the structural representation of slip ring among the 4th kind of embodiment of the present invention;
Figure 19 is the structural representation of the mandrel of electric expansion valve among first to fourth kind of embodiment of the present invention.
Wherein, the corresponding relation between component names and the reference character is among Fig. 1:
Shell 1 '; Magnet 2 '; Magnet bore 2 ' 1; Screw mandrel 3 '; Mandrel 4 '; Guide rail 5 '; Slip ring 6 '; Needle 7 ' 1; Valve port 7 ' 2; Vertical joint pipe 8 ' 1; Horizontal adapter 8 ' 2; End cap 9 ' 1; Stop rod 9 ' 2;
Corresponding relation among Fig. 2 to Figure 19 between component names and the reference character is:
Mandrel 4; Cell body 41; Connect boss 42;
Setting sleeve 7; Locating groove 71; First locating groove 711; Second locating groove 712; First retainer 72; Rake 73; Connect boss 74;
Embodiment
Core of the present invention is for providing a kind of electric expansion valve, and this electric expansion valve can effectively reduce the height of valve body on the basis that guarantees functional reliability, thereby realizes the purpose of electric expansion valve volume miniaturization.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, Fig. 2 is among first kind of embodiment of the present invention during the needle standard-sized sheet, the structural representation of electric expansion valve; Fig. 3 be electric expansion valve among Fig. 2 slip ring and setting sleeve first retainer cooperate schematic representation; Fig. 4 is among first kind of embodiment of the present invention during the needle full cut-off, the structural representation of electric expansion valve; Fig. 5 be electric expansion valve among Fig. 4 slip ring and guide rail second retainer cooperate schematic representation.
In basic technology scheme of the present invention, like Fig. 2 and shown in Figure 4, said electric expansion valve comprises shell 1; Be provided with magnet 2 in the shell 1, magnet 2 is connected with the screw mandrel 3 with its rotation, and along with magnet 2 takes place circumferentially to rotate; And under the driving of screw-thread fit, screw mandrel 3 is done elevating movement vertically, and screw mandrel 3 belows are connected with needle 81; Along with screw mandrel 3 goes up and down, the aperture that needle 81 is regulated valve port 82, thus realize that fluid is by the purpose of vertical joint pipe 91 to horizontal adapter 92 Flow-rate adjustment.In addition, like Fig. 2 and shown in Figure 4, said electric expansion valve also comprises the mandrel 4 of being located at shell 1 inside, and the outside of mandrel 4 is provided with guide rail 5, and guide rail is combined with slip ring 6.
On the basis of above-mentioned existing technology, in guide rail 5 and the mandrel 4, one with screw mandrel 3 or magnet 2 is connected and with its rotation, another person is connected with shell 1, and guide rail 5 all through positioning element and screw mandrel 3, magnet 2 perhaps shell 1 be connected; Slip ring 6 is dynamically connected with the axially-displaceable of mandrel 4 along mandrel 4, and fixes along the circumferential of mandrel 4, so that the rotation number of turns of restriction guide rail 5 or mandrel 4.
Need to prove; Above-mentioned basic technology scheme does not limit for the structure of said positioning element, as long as this positioning element can be connected guide rail 5 on screw mandrel 3 or the shell 1, and the location is reliable; Just all should be within protection scope of the present invention, such as setting sleeve 7 hereinafter described; In addition, above-mentioned basic technology scheme does not limit for the position of slip ring 6, no matter is slip ring 6 inside that is positioned at mandrel 4 (can with reference to figure 3 and Fig. 5), or slip ring 6 is positioned at the outside (can with reference to Figure 17) of mandrel 4, all should be within protection scope of the present invention.
Like Fig. 2 and shown in Figure 4, in first kind of embodiment of the present invention, guide rail 5 is connected through said positioning element with screw mandrel 3, and mandrel 4 is connected with shell 1.On this basis, slip ring 6 is dynamically connected with the axially-displaceable of mandrel 4 along mandrel 4, and fixes along the circumferential of mandrel 4, so that the rotation number of turns of control screw mandrel 3.Particularly; Can be provided with first retainer 72 on the said positioning element; The upper end portion of guide rail 5 can be provided with second retainer 52, and slip ring 6 just moves up and down in the distance range between first retainer 72 and second retainer 52 vertically, thus the rotation number of turns of control screw mandrel 3.
Hence one can see that, and with respect to the described existing technology of preamble, structural design of the present invention directly is fixedly connected with screw mandrel 3 with guide rail 5; Mandrel 4 be connected with shell 1 (also or mandrel 4 be fixedly connected with screw mandrel 3; Guide rail 5 is connected with shell 1), slip ring 6 does not circumferentially rotate along mandrel 4, but axially moving up and down in certain limit along mandrel 4; Thereby the rotation number of turns of control screw mandrel 3; Thereby save the structure of stop rod in the existing technology, and the radial dimension of the stop dog part of therefore being made up of guide rail 5, slip ring 6 and mandrel 4 will significantly reduce, and this stop dog part can whole perhaps major part be fitted in the magnet bore 21 of magnet 2; Thereby effectively reduce the height of valve body, realized the purpose of electric expansion valve volume miniaturization.
Please refer to Fig. 6, Fig. 7 and Fig. 8, Fig. 6 is the setting sleeve of electric expansion valve among Fig. 2 and Fig. 4 and the assembling schematic representation of guide rail; Fig. 7 is the structural representation of the guide rail of electric expansion valve among Fig. 2 and Fig. 4; Fig. 8 is the structural representation of the setting sleeve of electric expansion valve among Fig. 2 and Fig. 4.
In above-mentioned first kind of embodiment, can make design to the structure of positioning element.Such as, like Fig. 2 and shown in Figure 4, said positioning element can be setting sleeve 7, and the underpart of setting sleeve 7 is set in the outside of screw mandrel 3 upper end portions, and the underpart of guide rail 5 is located in the inner chamber of setting sleeve 7 upper end portions.Particularly, the upper end portion of screw mandrel 3 can be provided with the annular table terrace, and the lower end surface of setting sleeve 7 and this annular table terrace are fitted, and can be fixed together through laser bonding.
As shown in Figure 7, the upper end portion of guide rail 5 is provided with second retainer 52, and the part that the underpart of guide rail 5 is provided with between fixing part 51, the second retainers 52 and the fixing part 51 is a helical orbit.As shown in Figure 8, the lower end surface of setting sleeve 7 can offer locating groove 71, and the upper end portion of setting sleeve 7 is provided with first retainer 72.On this basis; As shown in Figure 6; Fixing part 51 stretches out from locating groove 71, and like Fig. 2 and shown in Figure 4, the upper-end surface 31 of the diapire of locating groove 71 and screw mandrel 3 grips portion 51; Thereby make guide rail 5 locate in the axial direction, the guide rail of the sidewall of locating groove 71 restriction simultaneously 5 upwards rotated in week.
Need to prove; Setting sleeve 7 is not set; The underpart of guide rail 5 also can directly be riveted on the upper end portion of screw mandrel 3, yet this kind structural design is little owing to the silk footpath of guide rail 5, intensity is low, thereby the caulking part area of contact is little; Rivet and be prone to deform after stressed, thereby the coaxality after guide rail 5 and screw mandrel 3 riveted joints is difficult to guarantee.In addition and since magnet 2 magnet bore 21 diameters little, and the material of magnet 2 is more crisp, in the riveted joint process, is prone to magnet 2 is caused damage.Yet in the present invention, guide rail 5 is fixed in the upper end of screw mandrel 3 through the structural design of above-mentioned setting sleeve 7, solves above-mentioned guide rail 5 and directly is riveted on the problem of being brought on the screw mandrel 3.In addition, as shown in Figure 8, first retainer 72 further is located at the upper end portion of setting sleeve 7 through rake 73.
Please refer to Fig. 9, Figure 10, Figure 11 and Figure 12, Fig. 9 is among second kind of embodiment of the present invention during the needle standard-sized sheet, the structural representation of electric expansion valve; Figure 10 be electric expansion valve among Fig. 9 slip ring and setting sleeve first retainer cooperate schematic representation; Figure 11 is among second kind of embodiment of the present invention during the needle full cut-off, the structural representation of electric expansion valve; Figure 12 be electric expansion valve among Fig. 9 slip ring and guide rail second retainer cooperate schematic representation.
Technological scheme among second kind of embodiment of the present invention and first kind of embodiment's of preceding text technological scheme are basic identical; Different is: guide rail 5 is connected through said positioning element with shell 1; Mandrel 4 is connected with screw mandrel 3, that is mandrel 4 is along with screw mandrel 3 rotates, and guide rail 5 is fixed.Its technique effect is identical with above-mentioned first kind of embodiment's technique effect, repeats no more at this.
Please refer to Figure 13, Figure 13 is the structural representation of the setting sleeve of electric expansion valve among Fig. 9 and Figure 11.
In second kind of embodiment, shown in figure 13, said positioning element can also be setting sleeve 7, and the upper end portion of setting sleeve 7 is connected with shell 1, and the upper end portion of guide rail 5 is located in the inner chamber of setting sleeve 7.Particularly, this setting sleeve 7 can form through rolling plate into longitudinal.
Particularly; Shown in figure 13, the upper-end surface of setting sleeve 7 offers locating groove 71, and is shown in figure 12; Fixing part 51 stretches out from locating groove 71; And the roof of the diapire of locating groove 71 and shell 1 clamps fixing part 51, thereby makes guide rail 5 locate in the axial direction, and the guide rail of the sidewall of locating groove 71 restriction simultaneously 5 upwards rotated in week.
Further, in this second kind of embodiment, like Figure 10 and shown in Figure 13, the underpart of setting sleeve 7 further is provided with first retainer 72 that cooperates with slip ring 6; In addition, the upper-end surface of setting sleeve 7 can offer and connect boss 74, and setting sleeve 7 is connected with shell 1 through connecting boss 74, and this connection boss 74 specifically can be fixed together through welding and shell 1, and this welding manner specifically can be resistance welding.
Please refer to Figure 14, Figure 15 and Figure 16, Figure 14 is the guide rail of electric expansion valve among the third embodiment of the present invention and the assembling schematic representation of setting sleeve; Figure 15 is the structural representation of setting sleeve among the third embodiment of the present invention; Figure 16 is the structural representation of the third embodiment's middle guide of the present invention.
The third embodiment of the present invention does to such an extent that further improve on above-mentioned first kind of embodiment and second kind of embodiment's basis.Particularly, shown in figure 16, fixing part 51 comprises first fixing part 511, reaches second fixing part 512 that is connected through circular arc part 513 with first fixing part 511; Shown in figure 15, locating groove 71 comprises first locating groove 711 and second locating groove 712, and these two locating grooves can be symmetrical set; Shown in figure 14, first fixing part 511 stretches out from first locating groove 711, and is around in the sidewall of setting sleeve 7 through circular arc part 513, and second fixing part 512 inserts in second locating groove 712.This kind structural design is fixed guide rail 5 through two locating grooves, makes guide rail 5 stress balances, and then improves the reliability and stability of its work.
Please refer to Figure 17, Figure 18 and Figure 19, Figure 17 is the assembling schematic representation of slip ring, guide rail and the mandrel of electric expansion valve among the 4th kind of embodiment of the present invention; Figure 18 is the structural representation of slip ring among the 4th kind of embodiment of the present invention; Figure 19 is the structural representation of the mandrel of electric expansion valve among first to fourth kind of embodiment of the present invention.
In any embodiment of the present invention, can make design to the structure of mandrel 4.Particularly, shown in figure 19, mandrel 4 is a sleeve, and the sidewall of said sleeve offers cell body 41; Further, this sleeve can be rolled by the quadrilateral plate and form, and has the gap between relative two end faces of said plate, and said gap forms cell body 41.Certainly, this sleeve can also process through steel pipe, and need process cell body 41 this moment on the sidewall of steel pipe.Need to prove that this cell body can be axially in the same way the straight trough with mandrel, the groove that also can tilt; Certainly, the end of this cell body can be provided with chamfering, so that slip ring positioning part 62 hereinafter described is installed.
Like Fig. 3, Fig. 5, Figure 10 and shown in Figure 12; Of the present invention first, second with the third embodiment in; Slip ring 6 comprises slip ring main body portion 61 and slip ring positioning part 62; Slip ring main body portion 61 is located at the inside of said sleeve, and slip ring positioning part 62 is stretched out from cell body 41 and cooperated with first retainer 72 of said positioning element or second retainer 52 of guide rail 5, with the rotation number of turns of restriction screw mandrel 3.Need to prove that in above-mentioned three kinds of embodiments, positioning action is played on the one hand in this slip ring positioning part 62, promptly cooperates with the cell body 41 of mandrel 4, restriction slip ring 6 rotates; Play the effect of stop pin on the other hand, promptly cooperate with first retainer 72 of setting sleeve 7 or second retainer 52 of guide rail 5, with the rotation number of turns of restriction screw mandrel 3, the lifting travel of control needle 81, and then the aperture scope of control valve port 82.
Like Figure 17 and shown in Figure 180, shown in figure 17 in the 4th kind of embodiment of the present invention, slip ring 6 comprises slip ring main body portion 61, be positioned at the slip ring positioning part 62 of slip ring main body portion 61 1 ends and be positioned at the stop pin portion 63 of slip ring main body portion 61 the other ends; Shown in figure 18, slip ring main body portion 61 is set in the outside of said sleeve, and slip ring positioning part 62 stretches in the cell body 41, and stop pin portion 63 cooperates with first retainer 72 of setting sleeve 7 or second retainer 52 of guide rail 5, to limit the rotation number of turns of screw mandrel 3.Need to prove that in the present embodiment, positioning action is only played in slip ring positioning part 62, promptly cooperate that restriction slip ring 6 rotates with the cell body 41 of mandrel 4; In addition, a stop pin portion 63 is set separately, cooperates with first retainer 72 of setting sleeve 7 or second retainer 52 of guide rail 5, with the rotation number of turns of restriction screw mandrel 3, the lifting travel of control needle 81, and then the aperture scope of control valve port 82.
In addition, shown in figure 19 in above-mentioned first kind of embodiment, the upper-end surface of mandrel 4 can be provided with and connect boss 42, and mandrel 4 connects boss 42 through this and is connected with the roof of shell 1, and the Placement that connects between boss 42 and shell 1 roof specifically can be welding.
At last, more than electric expansion valve provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (17)
1. an electric expansion valve comprises shell (1), is provided with magnet (2) in the said shell, and said magnet (2) is connected with the screw mandrel (3) with its rotation; Said electric expansion valve also comprises the mandrel (4) of being located at said enclosure, and the outside of said mandrel (4) is provided with guide rail (5), and said guide rail is combined with slip ring (6); It is characterized in that; In said guide rail (5) and the said mandrel (4); One are connected with screw mandrel (3) or magnet (2) and with its rotation, another person is connected with said shell (1), and said guide rail (5) all is connected with said screw mandrel (3), magnet (2) or said shell (1) through positioning element; Said slip ring (6) is dynamically connected with the axially-displaceable of said mandrel (4) along said mandrel (4), and fixes along the circumferential of said mandrel (4), so that limit the rotation number of turns of said guide rail (5) or said mandrel (4).
2. electric expansion valve according to claim 1 is characterized in that, said guide rail (5) is connected through said positioning element with said screw mandrel (3), and said mandrel (4) is connected with said shell (1).
3. electric expansion valve according to claim 2; It is characterized in that; Said positioning element is setting sleeve (7), and the underpart of said setting sleeve (7) is set in the outside of said screw mandrel (3) upper end portion, and the underpart of said guide rail (5) is located in the inner chamber of said setting sleeve (7) upper end portion.
4. electric expansion valve according to claim 3; It is characterized in that; The underpart of said guide rail (5) is provided with fixing part (51); The lower end surface of said setting sleeve (7) offers locating groove (71), and said fixing part (51) stretches out from said locating groove (71), and the said fixing part of upper-end surface (31) clamping (51) of the diapire of said locating groove (71) and said screw mandrel (3).
5. according to claim 3 or 4 described electric expansion valves, it is characterized in that the upper end portion of said setting sleeve (7) further is provided with first retainer (72) that cooperates with said slip ring (6).
6. electric expansion valve according to claim 5 is characterized in that, said first retainer (72) further is located at the upper end portion of said setting sleeve (7) through rake (73).
7. electric expansion valve according to claim 1 is characterized in that, said guide rail (5) is connected through said positioning element with said shell (1), and said mandrel (4) is connected with said screw mandrel (3).
8. electric expansion valve according to claim 7 is characterized in that, said positioning element is setting sleeve (7), and the upper end portion of said setting sleeve (7) is connected with said shell (1), and the upper end portion of said guide rail (5) is located in the inner chamber of said setting sleeve (7).
9. electric expansion valve according to claim 8; It is characterized in that; The upper end portion of said guide rail (5) is provided with fixing part (51); The upper-end surface of said setting sleeve (7) offers locating groove (71), and said fixing part (51) stretches out from said locating groove (71), and the roof of the diapire of said locating groove (71) and said shell (1) clamps said fixing part (51).
10. according to Claim 8 or 9 described electric expansion valves, it is characterized in that the underpart of said setting sleeve (7) further is provided with first retainer (72) that cooperates with said slip ring (6).
11. according to Claim 8 or 9 each described electric expansion valves, it is characterized in that the upper-end surface of said setting sleeve (7) offers and connects boss (74), said setting sleeve (7) is connected with said shell (1) through said connection boss (74).
12., it is characterized in that said fixing part (51) comprises first fixing part (511) according to claim 4 or 9 described electric expansion valves, reach second fixing part (512) that is connected through circular arc part (513) with said first fixing part (511); Said locating groove (71) comprises first locating groove (711) and second locating groove (712); Said first fixing part (511) stretches out from said first locating groove (711), and is around in the sidewall of said setting sleeve (7) through said circular arc part (513), and said second fixing part (512) inserts in said second locating groove (712).
13., it is characterized in that said mandrel (4) is a sleeve according to claim 1,2,3,4,7,8 or 9 described electric expansion valves, the sidewall of said sleeve offers cell body (41); Said slip ring (6) comprises slip ring main body portion (61) and is positioned at the slip ring positioning part (62) of said slip ring main body portion (61) one ends that said slip ring positioning part (62) is located in the said cell body (41).
14. electric expansion valve according to claim 13; It is characterized in that; Said slip ring main body portion (61) is located at the inside of said sleeve; Said slip ring positioning part (62) is stretched out from said cell body (41) and is cooperated with first retainer (52) of said positioning element, to limit the rotation number of turns of said screw mandrel (3).
15. electric expansion valve according to claim 13 is characterized in that, said slip ring main body portion (61) is set in the outside of said sleeve, and said slip ring positioning part (62) is stretched in the said cell body (41); Said slip ring (6) also comprises the stop pin portion (63) that is positioned at said slip ring main body portion (61) the other end, and said stop pin portion (63) cooperates with first retainer (72) of said positioning element, to limit the rotation number of turns of said screw mandrel (3).
16. electric expansion valve according to claim 13 is characterized in that, said sleeve is rolled by the quadrilateral plate and forms, and has the gap between relative two end faces of said plate, and said gap forms said cell body (41).
17., it is characterized in that said mandrel (4) is a sleeve according to the described electric expansion valve of claim 2 to 4, the sidewall of said sleeve offers cell body (41); Said slip ring (6) comprises slip ring main body portion (61) and is positioned at the slip ring positioning part (62) of said slip ring main body portion (61) one ends that said slip ring positioning part (62) is located in the said cell body (41); The upper-end surface of said sleeve is provided with and connects boss (42), and said sleeve is connected with said shell (1) through said connection boss (42).
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290945.3A CN102410395B (en) | 2010-09-20 | 2010-09-20 | Electronic expansion valve |
| PCT/CN2010/078059 WO2012037739A1 (en) | 2010-09-20 | 2010-10-25 | Electronic expansion valve |
| KR1020127005880A KR101401127B1 (en) | 2010-09-20 | 2011-06-24 | Electronic expansion valve |
| JP2012534534A JP5436686B2 (en) | 2010-09-20 | 2011-06-24 | Electronic expansion valve |
| KR1020147005117A KR101502291B1 (en) | 2010-09-20 | 2011-06-24 | Electronic expansion valve |
| PCT/CN2011/076280 WO2012037830A1 (en) | 2010-09-20 | 2011-06-24 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010290945.3A CN102410395B (en) | 2010-09-20 | 2010-09-20 | Electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410395A true CN102410395A (en) | 2012-04-11 |
| CN102410395B CN102410395B (en) | 2014-03-19 |
Family
ID=45873398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010290945.3A Active CN102410395B (en) | 2010-09-20 | 2010-09-20 | Electronic expansion valve |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5436686B2 (en) |
| KR (2) | KR101401127B1 (en) |
| CN (1) | CN102410395B (en) |
| WO (2) | WO2012037739A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672131A (en) * | 2012-09-06 | 2014-03-26 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
| CN104930241A (en) * | 2014-03-19 | 2015-09-23 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN105333197A (en) * | 2014-08-08 | 2016-02-17 | 浙江三花股份有限公司 | Electrically operated valve, locking device thereof and mounting method of locking guide rail |
| CN112824689A (en) * | 2019-11-21 | 2021-05-21 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
| CN113790275A (en) * | 2021-09-29 | 2021-12-14 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102083150B1 (en) * | 2017-11-20 | 2020-03-02 | 세종공업 주식회사 | Electric type Expansion valve |
| KR102170493B1 (en) | 2018-11-15 | 2020-10-29 | 우리산업 주식회사 | Electronic expansion valve |
| KR102170491B1 (en) | 2018-11-20 | 2020-10-29 | 우리산업 주식회사 | Electronic expansion valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896860A (en) * | 1989-05-08 | 1990-01-30 | Eaton Corporation | Electrically operated refrigerant valve |
| JP2003074730A (en) * | 2001-09-03 | 2003-03-12 | Saginomiya Seisakusho Inc | Motor-operated valve |
| JP2003148643A (en) * | 2001-09-03 | 2003-05-21 | Saginomiya Seisakusho Inc | Electric valve |
| JP2003148642A (en) * | 2001-11-14 | 2003-05-21 | Saginomiya Seisakusho Inc | Electric valve |
| CN200952570Y (en) * | 2006-09-18 | 2007-09-26 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN101929550A (en) * | 2009-06-25 | 2010-12-29 | 浙江三花股份有限公司 | Electronic expansion valve |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2147156C (en) * | 1992-10-15 | 1999-12-21 | Chester D. Campbell | Valve for air conditioning system with proportional solenoid |
| JP3248976B2 (en) * | 1993-01-13 | 2002-01-21 | 株式会社リコー | Image reading device |
| JP3330832B2 (en) * | 1996-11-28 | 2002-09-30 | 太平洋工業株式会社 | Electric valve |
| JP3328530B2 (en) * | 1996-12-12 | 2002-09-24 | 太平洋工業株式会社 | Motorized valve stopper structure |
| JP2000120907A (en) | 1998-10-17 | 2000-04-28 | Izumi Giken:Kk | Motor-operated expansion valve |
| JP2003056736A (en) * | 2001-08-13 | 2003-02-26 | Saginomiya Seisakusho Inc | Motor-operated valve |
| KR100619245B1 (en) * | 2004-08-30 | 2006-08-31 | 자화전자 주식회사 | electronic expansion valve for sealtype |
| CN1766377A (en) * | 2004-10-28 | 2006-05-03 | 浙江三花股份有限公司 | Electronic expansion valve |
| JP4758916B2 (en) * | 2007-01-18 | 2011-08-31 | 株式会社不二工機 | Motorized valve |
| CN201013922Y (en) * | 2007-03-16 | 2008-01-30 | 浙江盾安精工集团有限公司 | Electronic expansion valve for refrigerate |
-
2010
- 2010-09-20 CN CN201010290945.3A patent/CN102410395B/en active Active
- 2010-10-25 WO PCT/CN2010/078059 patent/WO2012037739A1/en active Application Filing
-
2011
- 2011-06-24 KR KR1020127005880A patent/KR101401127B1/en active IP Right Grant
- 2011-06-24 JP JP2012534534A patent/JP5436686B2/en active Active
- 2011-06-24 WO PCT/CN2011/076280 patent/WO2012037830A1/en active Application Filing
- 2011-06-24 KR KR1020147005117A patent/KR101502291B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896860A (en) * | 1989-05-08 | 1990-01-30 | Eaton Corporation | Electrically operated refrigerant valve |
| JP2003074730A (en) * | 2001-09-03 | 2003-03-12 | Saginomiya Seisakusho Inc | Motor-operated valve |
| JP2003148643A (en) * | 2001-09-03 | 2003-05-21 | Saginomiya Seisakusho Inc | Electric valve |
| JP2003148642A (en) * | 2001-11-14 | 2003-05-21 | Saginomiya Seisakusho Inc | Electric valve |
| CN200952570Y (en) * | 2006-09-18 | 2007-09-26 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN101929550A (en) * | 2009-06-25 | 2010-12-29 | 浙江三花股份有限公司 | Electronic expansion valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672131A (en) * | 2012-09-06 | 2014-03-26 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
| CN103672131B (en) * | 2012-09-06 | 2016-06-08 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
| CN104930241A (en) * | 2014-03-19 | 2015-09-23 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN105333197A (en) * | 2014-08-08 | 2016-02-17 | 浙江三花股份有限公司 | Electrically operated valve, locking device thereof and mounting method of locking guide rail |
| CN112824689A (en) * | 2019-11-21 | 2021-05-21 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
| CN112824689B (en) * | 2019-11-21 | 2022-05-13 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
| CN113790275A (en) * | 2021-09-29 | 2021-12-14 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| CN113790275B (en) * | 2021-09-29 | 2023-12-22 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120056841A (en) | 2012-06-04 |
| KR101401127B1 (en) | 2014-05-29 |
| CN102410395B (en) | 2014-03-19 |
| WO2012037830A1 (en) | 2012-03-29 |
| JP2013504033A (en) | 2013-02-04 |
| JP5436686B2 (en) | 2014-03-05 |
| WO2012037739A1 (en) | 2012-03-29 |
| KR20140046034A (en) | 2014-04-17 |
| KR101502291B1 (en) | 2015-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102410395A (en) | Electronic expansion valve | |
| CN101956830A (en) | Electronic expansion valve | |
| CN102042416A (en) | Electronic expansion valve | |
| CN104791536A (en) | Direct-acting type electric valve | |
| CN103575000A (en) | Electronic expansion valve | |
| JP2011167029A (en) | Device for assembling of assembly | |
| CN103424578B (en) | Probe station rotary lifting mechanism | |
| CN105790513A (en) | Permanent magnet motor assembly assist device and assembly method | |
| CN207441626U (en) | A kind of spindle mounting structure of circuit breaker operation mechanism | |
| CN203782378U (en) | Automatic winding machine of sewing machine | |
| CN2504449Y (en) | Rotor type electromagnetic regulating valve | |
| CN202914861U (en) | Electronic expansion valve | |
| CN209970529U (en) | Center positioning device for workpiece | |
| CN214398796U (en) | Secondary precision positioning structure of multi-station turntable | |
| CN102207199A (en) | Electronic expansion valve | |
| CN208386365U (en) | A kind of electric motor fixed device of rotor production | |
| JP4965273B2 (en) | Mounting device | |
| CN107143664A (en) | Plug valve | |
| CN208067706U (en) | The circlip press-loading device of needle bearing | |
| CN2542398Y (en) | Double-pole supporting device for automatic high-speed bearing inner race groove grinder | |
| CN103625318B (en) | A kind of barbed chair and angle regulator thereof | |
| CN204711457U (en) | A kind of positioner for lifting machine location assembly welding | |
| CN103722424A (en) | Machining tool for valve spools of eccentric hemisphere valves | |
| CN113977157B (en) | Full-automatic welding manipulator for steel pipe furniture and welding method thereof | |
| CN209180472U (en) | Flow control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 312500 Xinchang, Zhejiang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: Zhejiang Sanhua Co., Ltd. |