CN102410395B - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN102410395B CN102410395B CN201010290945.3A CN201010290945A CN102410395B CN 102410395 B CN102410395 B CN 102410395B CN 201010290945 A CN201010290945 A CN 201010290945A CN 102410395 B CN102410395 B CN 102410395B
- Authority
- CN
- China
- Prior art keywords
- slip ring
- mandrel
- electric expansion
- guide rail
- expansion valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000005056 cell body Anatomy 0.000 claims description 26
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 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
- 239000010959 steel Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 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
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 fluid control component technical field, particularly a kind of electric expansion valve.
Background technique
Idle call electronics expansion valve is comprised of stepper motor, thread mechanism, stop dog part, the large main part of needle valve port flow control device four.Wherein stop dog part is comprised of fixed block and movable part two parts, and movable part is being fixed on magnet, with magnet, can circumferentially rotate and axially lifting.Fixed block coordinates with movable part, and its function is for limiting the stroke of thread mechanism and the axial lifting of needle, prevents from the excessive rising of thread mechanism and needle or decline causing losing the function of Flow-rate adjustment.Idle call electronics expansion valve is generally used on the outdoor unit of frequency converting air conditioner, on the indoor set of some high-grade air-conditionings, also need to use electric expansion valve in recent years, yet due to some type narrow space of indoor set, be unfavorable for the electric expansion valve that installation volume is larger, thereby need badly electric expansion valve is improved, make its volume miniaturization.Below the structure for electric expansion valve of the prior art is done to concrete introduction.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of electric expansion valve in prior art.
Electric expansion valve of the prior art comprise shell 1 ', shell 1 ' be inside provided with magnet 2 ', magnet 2 ' with screw mandrel 3 ' be fixedly connected with, 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, and along with screw mandrel 3 ' lifting, needle 7 ' 1 regulates the aperture of valve port 7 ' 2, thereby realizes by vertical joint pipe 8 ' 1 object 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 lower retainer 5 ' 2, and lower retainer 5 ' 2 is fixed with mandrel 4 ' riveted joint; Stop rod 9 ' 2 and screw mandrel 3 ' be welded and fixed, and stop rod 9 ' 2 and slip ring 6 ' coordinate, stop rod 9 ' 2 is along with screw mandrel 3 ' rotate, the number of turns (such as 5.5 circles) of slip ring 6 ' thereupon stipulate around guide rail 5 ' rotation; Slip ring 6 ' while turning clockwise, be stopped in a circumferential direction retainer 5 ' 1, slip ring 6 ' while being rotated counterclockwise, be stopped in a circumferential direction lower retainer 5 ' 2, by 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 ' upper must fixed stop bar 9 ' 2, thereby drive slip ring 6 ' around guide rail 5 ' rotation, because stop rod 9 ' 2 axial dimensions are larger, and its top is guiding not, thereby magnet 2 ' shaking to drive stop rod 9 ' 2 to shake, for preventing stop rod 9 ' 2 and guide rail 5 ' interfere, stop rod 9 ' 2 and guide rail 5 ' between need to arrange larger gap, thereby by stop rod 9 ' 2, guide rail 5 ', slip ring 6 ' and the stop dog part radial dimension of mandrel 4 ' composition is larger, thereby cannot integral body or major part pack into magnet 2 ' magnet bore 2 ' 1 in, and then cause the height of whole valve body larger, be unfavorable for realizing the object of electric expansion valve volume miniaturization.
Summary of the invention
The technical problem to be solved in the present invention is for a kind of electric expansion valve is provided, and this electric expansion valve, on the basis of assurance functional reliability, can effectively reduce the height of valve body, thereby realize the object of electric expansion valve volume miniaturization.
For solving the problems of the technologies described above, the invention provides a kind of electric expansion valve, comprise shell, in described shell, be provided with magnet, described magnet is connected with the screw mandrel with its rotation; Described electric expansion valve also comprises the mandrel of being located at described enclosure, and the outside of described mandrel is provided with guide rail, and described guide rail is combined with slip ring; In described guide rail and described mandrel, one is connected with screw mandrel or described magnet and rotates with it, and another one is connected with described shell, and described guide rail is all connected with described screw mandrel, described magnet or described shell by positioning element; Described slip ring and described mandrel are dynamically connected along the axially-displaceable of described mandrel, and fix along the circumferential of described mandrel, to limit the rotation number of turns of described guide rail or described mandrel.
Preferably, described guide rail is connected by described positioning element with described screw mandrel, and described mandrel is connected with described shell.
Preferably, described positioning element is setting sleeve, and the underpart of described setting sleeve is set in the outside of described screw mandrel upper end portion, and the underpart of described guide rail is located in the inner chamber of described setting sleeve upper end portion.
Preferably, the underpart of described guide rail is provided with fixing part, and the lower end surface of described setting sleeve offers locating groove, and described fixing part stretches out from described locating groove, and the diapire of described locating groove and the upper-end surface of described screw mandrel clamp described fixing part.
Preferably, the upper end portion of described setting sleeve is further provided with the first retainer coordinating with described slip ring.
Preferably, described the first retainer is further located at the upper end portion of described setting sleeve by rake.
Preferably, described guide rail is connected by described positioning element with described shell, and described mandrel is connected with described screw mandrel.
Preferably, described positioning element is setting sleeve, and the upper end portion of described setting sleeve is connected with described shell, and the upper end portion of described guide rail is located in the inner chamber of described setting sleeve.
Preferably, the upper end portion of described guide rail is provided with fixing part, and the upper-end surface of described setting sleeve offers locating groove, and described fixing part stretches out from described locating groove, and the diapire of described locating groove and the roof of described shell clamp described fixing part.
Preferably, the underpart of described setting sleeve is further provided with the first retainer coordinating with described slip ring.
Preferably, the upper-end surface of described setting sleeve offers connection boss, and described setting sleeve is connected with described shell by described connection boss.
Preferably, described fixing part comprises the first fixing part, and the second fixing part being connected by circular arc part with described the first fixing part; Described locating groove comprises the first locating groove and the second locating groove; Described the first fixing part stretches out from described the first locating groove, and by described circular arc part, is around in the sidewall of described setting sleeve, and described the second fixing part inserts in described the second locating groove.
Preferably, described mandrel is sleeve, and the sidewall of described sleeve offers cell body; Described slip ring comprises slip ring main body portion and is positioned at the slip ring positioning part of described slip ring main body portion one end, and described slip ring positioning part is located in described cell body.
Preferably, described slip ring main body portion is located at the inside of described sleeve, and described slip ring positioning part is stretched out and coordinated with the first retainer of described positioning element from described cell body, to limit the rotation number of turns of described screw mandrel.
Preferably, described slip ring main body portion is set in the outside of described sleeve, and described slip ring positioning part is stretched in described cell body; Described slip ring also comprises the stop pin portion that is positioned at the described slip ring main body portion the other end, and described stop pin portion coordinates with the first retainer of described positioning element, to limit the rotation number of turns of described screw mandrel.
Preferably, described sleeve is rolled and is formed by quadrilateral plate, between relative two end faces of described plate, has gap, and described gap forms described cell body.
Preferably, described mandrel is sleeve, and the sidewall of described sleeve offers cell body; Described slip ring comprises slip ring main body portion and is positioned at the slip ring positioning part of described slip ring main body portion one end, and described slip ring positioning part is located in described cell body; The upper-end surface of described sleeve is provided with connection boss, and described sleeve is connected with described shell by described connection boss.
On the basis of existing technology, in the guide rail and mandrel of electric expansion valve provided by the present invention, one is connected with screw mandrel or magnet and rotates with it, and another one 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, to control the rotation number of turns of described screw mandrel.Particularly, on described positioning element, can be provided with the first retainer, the upper end portion of guide rail can be provided with the second retainer, and slip ring just moves in the distance between the first retainer and the second retainer up and down vertically, thereby controls the rotation number of turns of screw mandrel.
Hence one can see that, with respect to previously described prior art, structural design of the present invention is directly 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 control the rotation number of turns of screw mandrel, thereby save the structure of stop rod in prior art, by guide rail, the radial dimension of the stop dog part that slip ring and mandrel form will significantly reduce, thereby this stop dog part can integral body or major part be fitted in the magnet bore of magnet, thereby effectively reduce the height of valve body, realized the object of electric expansion valve volume miniaturization.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of electric expansion valve in prior art;
Fig. 2 is in the first embodiment of the present invention during needle standard-sized sheet, the structural representation of electric expansion valve;
Fig. 3 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 2 and the first retainer of setting sleeve;
Fig. 4 is in the first embodiment of the present invention during needle full cut-off, the structural representation of electric expansion valve;
Fig. 5 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 4 and the second retainer of guide rail;
Fig. 6 is the setting sleeve of electric expansion valve in Fig. 2 and Fig. 4 and the assembling schematic diagram of guide rail;
Fig. 7 is the structural representation of the guide rail of electric expansion valve in Fig. 2 and Fig. 4;
Fig. 8 is the structural representation of the setting sleeve of electric expansion valve in Fig. 2 and Fig. 4;
Fig. 9 is in the second embodiment of the present invention during needle standard-sized sheet, the structural representation of electric expansion valve;
Figure 10 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 9 and the first retainer of setting sleeve;
Figure 11 is in the second embodiment of the present invention during needle full cut-off, the structural representation of electric expansion valve;
Figure 12 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 9 and the second retainer of guide rail;
Figure 13 is the structural representation of the setting sleeve of electric expansion valve in Fig. 9 and Figure 11;
Figure 14 is the guide rail of electric expansion valve and the assembling schematic diagram of setting sleeve in the third embodiment of the present invention;
Figure 15 is the structural representation of setting sleeve in 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 diagram of slip ring, guide rail and the mandrel of electric expansion valve in the 4th kind of embodiment of the present invention;
Figure 18 is the structural representation of slip ring in the 4th kind of embodiment of the present invention;
Figure 19 is the structural representation of the mandrel of electric expansion valve in first to fourth kind of embodiment of the present invention.
Wherein, in Fig. 1, the corresponding relation between component names and reference character is:
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 in Fig. 2 to Figure 19 between component names and reference character is:
Mandrel 4; Cell body 41; Connect boss 42;
Setting sleeve 7; Locating groove 71; The first locating groove 711; The second locating groove 712; The first retainer 72; Rake 73; Connect boss 74;
Embodiment
Core of the present invention is for a kind of electric expansion valve is provided, and this electric expansion valve, on the basis of assurance functional reliability, can effectively reduce the height of valve body, thereby realize the object of electric expansion valve volume miniaturization.
In order to make those skilled in the art understand better technological scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, Fig. 2 is in the first embodiment of the present invention during needle standard-sized sheet, the structural representation of electric expansion valve; Fig. 3 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 2 and the first retainer of setting sleeve; Fig. 4 is in the first embodiment of the present invention during needle full cut-off, the structural representation of electric expansion valve; Fig. 5 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 4 and the second retainer of guide rail.
In basic technology scheme of the present invention, as shown in Figure 2 and Figure 4, described electric expansion valve comprises shell 1, is provided with magnet 2 in shell 1, magnet 2 is connected with the screw mandrel 3 with its rotation, and along with magnet 2 occurs circumferentially to rotate, and under the driving of screw-thread fit, screw mandrel 3 is done elevating movement vertically, screw mandrel 3 belows are connected with needle 81, along with screw mandrel 3 liftings, needle 81 regulates the aperture of valve ports 82, thus realize fluid by vertical joint pipe 91 object to horizontal adapter 92 Flow-rate adjustment.In addition, as shown in Figure 2 and Figure 4, described 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 prior art, in guide rail 5 and mandrel 4, one is connected with screw mandrel 3 or magnet 2 and rotates with it, and another one is connected with shell 1, and guide rail 5 is all connected with screw mandrel 3, magnet 2 or shell 1 by positioning element; 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.
It should be noted that, above-mentioned basic technology scheme is not restricted for the structure of described positioning element, as long as this positioning element can be connected to guide rail 5 on screw mandrel 3 or shell 1, and 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 is not restricted for the position of slip ring 6; be no matter 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.
As shown in Figure 2 and Figure 4, in the first embodiment of the present invention, guide rail 5 is connected by described 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, to control the rotation number of turns of screw mandrel 3.Particularly, on described positioning element, can be provided with the first retainer 72, the upper end portion of guide rail 5 can be provided with the second retainer 52, and slip ring 6 just moves in the distance range between the first retainer 72 and the second retainer 52 up and down vertically, thereby controls the rotation number of turns of screw mandrel 3.
Hence one can see that, with respect to previously described prior art, structural design of the present invention is directly 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 control the rotation number of turns of screw mandrel 3, thereby save the structure of stop rod in prior art, therefore by guide rail 5, the radial dimension of the stop dog part that slip ring 6 and mandrel 4 form will significantly reduce, this stop dog part can integral body or major part be fitted in the magnet bore 21 of magnet 2, thereby effectively reduce the height of valve body, realized the object 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 in Fig. 2 and Fig. 4 and the assembling schematic diagram of guide rail; Fig. 7 is the structural representation of the guide rail of electric expansion valve in Fig. 2 and Fig. 4; Fig. 8 is the structural representation of the setting sleeve of electric expansion valve in Fig. 2 and Fig. 4.
In above-mentioned the first embodiment, can make design to the structure of positioning element.Such as, as shown in Figure 2 and Figure 4, described 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 arrange annular table terrace, the lower end surface of setting sleeve 7 and the laminating of this annular table terrace, and can be fixed together by laser bonding.
As shown in Figure 7, the upper end portion of guide rail 5 is provided with the 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 fixing part 51 is 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 the first retainer 72.On this basis, as shown in Figure 6, fixing part 51 stretches out from locating groove 71, and as shown in Figure 2 and Figure 4, the upper-end surface 31 of the diapire of locating groove 71 and screw mandrel 3 grips portion 51, thereby guide rail 5 is located in the axial direction, and the guide rail 5 of the sidewall of locating groove 71 restriction simultaneously upwards rotated in week.
It should be noted that, 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 of structural design is because the string diameter of guide rail 5 is little, intensity is low, thereby caulking part area of contact is little, rivet stressed easily deform afterwards, thereby the coaxality after guide rail 5 and screw mandrel 3 riveted joints is difficult to guarantee.In addition, due to magnet 2 magnet bore 21 diameters little, and the material of magnet 2 is more crisp, in riveted joint process, easily magnet 2 is caused to damage.Yet in the present invention, guide rail 5 is fixed on the upper end of screw mandrel 3 by the structural design of above-mentioned setting sleeve 7, solves above-mentioned guide rail 5 and be directly riveted on the problem of bringing on screw mandrel 3.In addition, as shown in Figure 8, the first retainer 72 is further located at the upper end portion of setting sleeve 7 by rake 73.
Please refer to Fig. 9, Figure 10, Figure 11 and Figure 12, Fig. 9 is in the second embodiment of the present invention during needle standard-sized sheet, the structural representation of electric expansion valve; Figure 10 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 9 and the first retainer of setting sleeve; Figure 11 is in the second embodiment of the present invention during needle full cut-off, the structural representation of electric expansion valve; Figure 12 is the schematic diagram that coordinates of the slip ring of electric expansion valve in Fig. 9 and the second retainer of guide rail.
Technological scheme in the second embodiment of the present invention and above the first embodiment's technological scheme is basic identical, difference is: guide rail 5 is connected by described 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 maintains static.Its technique effect is identical with above-mentioned the first embodiment's technique effect, does not repeat them here.
Please refer to Figure 13, Figure 13 is the structural representation of the setting sleeve of electric expansion valve in Fig. 9 and Figure 11.
In the second embodiment, as shown in figure 13, described 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 by rolling plate into longitudinal.
Particularly, as shown in figure 13, the upper-end surface of setting sleeve 7 offers locating groove 71, as 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 guide rail 5 is located in the axial direction, the guide rail 5 of the sidewall of locating groove 71 restriction simultaneously upwards rotated in week.
Further, in this second embodiment, as shown in Figure 10 and Figure 13, the underpart of setting sleeve 7 is further provided with the first retainer 72 coordinating 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 by connecting boss 74, and this connection boss 74 specifically can be fixed together by welding and shell 1, and this welding manner is specifically as follows resistance welding.
Please refer to Figure 14, Figure 15 and Figure 16, Figure 14 is the guide rail of electric expansion valve and the assembling schematic diagram of setting sleeve in the third embodiment of the present invention; Figure 15 is the structural representation of setting sleeve in 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 the first embodiment and the second embodiment's basis.Particularly, as shown in figure 16, fixing part 51 comprises the first fixing part 511, and the second fixing part 512 being connected by circular arc part 513 with the first fixing part 511; As shown in figure 15, locating groove 71 comprises the first locating groove 711 and the second locating groove 712, and these two locating grooves can be symmetrical arranged; As shown in figure 14, the first fixing part 511 stretches out from the first locating groove 711, and by circular arc part 513, is around in the sidewall of setting sleeve 7, and the second fixing part 512 inserts in the second locating groove 712.This kind of structural design fixed guide rail 5 by 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 diagram of slip ring, guide rail and the mandrel of electric expansion valve in the 4th kind of embodiment of the present invention; Figure 18 is the structural representation of slip ring in the 4th kind of embodiment of the present invention; Figure 19 is the structural representation of the mandrel of electric expansion valve in 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, as shown in figure 19, mandrel 4 is sleeve, and the sidewall of described sleeve offers cell body 41; Further, this sleeve can be rolled and be formed by quadrilateral plate, between relative two end faces of described plate, has gap, and described gap forms cell body 41.Certainly, this sleeve can also process by steel pipe, now need on the sidewall of steel pipe, process cell body 41.It should be noted that, this cell body can be the axially straight trough in the same way with mandrel, the groove that also can tilt; Certainly, the end of this cell body can be provided with chamfering, to slip ring positioning part 62 is hereinafter described installed.
As shown in Fig. 3, Fig. 5, Figure 10 and Figure 12, in first, second, and third kind of embodiment of the present invention, 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 described sleeve, slip ring positioning part 62 is stretched out and is coordinated with the first retainer 72 of described positioning element or the second retainer 52 of guide rail 5 from cell body 41, to limit the rotation number of turns of screw mandrel 3.It should be noted that, in above-mentioned three kinds of embodiments, positioning action is played on the one hand in this slip ring positioning part 62, coordinates with the cell body 41 of mandrel 4, and restriction slip ring 6 rotates; Play on the other hand the effect of stop pin, coordinate with the first retainer 72 of setting sleeve 7 or the second retainer 52 of guide rail 5, to limit the rotation number of turns of screw mandrel 3, control the lifting travel of needle 81, and then control the aperture scope of valve port 82.
As shown in Figure 17 and Figure 18, in the 4th kind of embodiment of the present invention, as shown in figure 17, 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 one end and be positioned at the stop pin portion 63 of slip ring main body portion 61 the other ends; As shown in figure 18, slip ring main body portion 61 is set in the outside of described sleeve, and slip ring positioning part 62 stretches in cell body 41, and stop pin portion 63 coordinates with the first retainer 72 of setting sleeve 7 or the second retainer 52 of guide rail 5, to limit the rotation number of turns of screw mandrel 3.It should be noted that, in the present embodiment, positioning action is only played in slip ring positioning part 62, coordinates with the cell body 41 of mandrel 4, and restriction slip ring 6 rotates; In addition, a stop pin portion 63 is set separately, coordinates with the first retainer 72 of setting sleeve 7 or the second retainer 52 of guide rail 5, to limit the rotation number of turns of screw mandrel 3, control the lifting travel of needle 81, and then control the aperture scope of valve port 82.
In addition, in above-mentioned the first embodiment, as shown in figure 19, the upper-end surface of mandrel 4 can be provided with and connect boss 42, and mandrel 4 is connected with the roof of shell 1 by this connection boss 42, and the Placement connecting between boss 42 and shell 1 roof is specifically as follows welding.
Finally, above electric expansion valve provided by the present invention is described in detail.Applied specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles 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 the claims in the present invention.
Claims (16)
1. an electric expansion valve, comprises shell (1), is provided with magnet (2) in described shell, and described magnet (2) is connected with the screw mandrel (3) with its rotation; Described electric expansion valve also comprises the mandrel (4) of being located at described enclosure, and the outside of described mandrel (4) is provided with guide rail (5), and described guide rail is combined with slip ring (6); It is characterized in that, described guide rail (5) is connected with screw mandrel (3) and rotates with it, and described mandrel (4) is connected with described shell (1), and described guide rail (5) is connected with described screw mandrel (3) by positioning element; Described slip ring (6) is dynamically connected with the axially-displaceable of described mandrel (4) along described mandrel (4), and fixes along the circumferential of described mandrel (4), to limit the rotation number of turns of described guide rail (5); Described positioning element is setting sleeve (7), and the underpart of described setting sleeve (7) is set in the outside of described screw mandrel (3) upper end portion, and the underpart of described guide rail (5) is located in the inner chamber of described setting sleeve (7) upper end portion.
2. electric expansion valve according to claim 1, it is characterized in that, the underpart of described guide rail (5) is provided with fixing part (51), the lower end surface of described setting sleeve (7) offers locating groove (71), described fixing part (51) stretches out from described locating groove (71), and the upper-end surface (31) of the diapire of described locating groove (71) and described screw mandrel (3) clamps described fixing part (51).
3. electric expansion valve according to claim 1 and 2, is characterized in that, the upper end portion of described setting sleeve (7) is further provided with the first retainer (72) coordinating with described slip ring (6).
4. electric expansion valve according to claim 3, is characterized in that, described the first retainer (72) is further located at the upper end portion of described setting sleeve (7) by rake (73).
5. electric expansion valve according to claim 2, it is characterized in that, described fixing part (51) comprises the first fixing part (511), and the second fixing part (512) being connected by circular arc part (513) with described the first fixing part (511); Described locating groove (71) comprises the first locating groove (711) and the second locating groove (712); Described the first fixing part (511) stretches out from described the first locating groove (711), and by described circular arc part (513), be around in the sidewall of described setting sleeve (7), and described the second fixing part (512) inserts in described the second locating groove (712).
6. electric expansion valve according to claim 1 and 2, is characterized in that, described mandrel (4) is sleeve, and the sidewall of described sleeve offers cell body (41); Described slip ring (6) comprises slip ring main body portion (61) and is positioned at the slip ring positioning part (62) of described slip ring main body portion (61) one end, and described slip ring positioning part (62) is located in described cell body (41).
7. electric expansion valve according to claim 1 and 2, is characterized in that, described mandrel (4) is sleeve, and the sidewall of described sleeve offers cell body (41); Described slip ring (6) comprises slip ring main body portion (61) and is positioned at the slip ring positioning part (62) of described slip ring main body portion (61) one end, and described slip ring positioning part (62) is located in described cell body (41); The upper-end surface of described sleeve is provided with and connects boss (42), and described sleeve is connected with described shell (1) by described connection boss (42).
8. an electric expansion valve, comprises shell (1), is provided with magnet (2) in described shell, and described magnet (2) is connected with the screw mandrel (3) with its rotation; Described electric expansion valve also comprises the mandrel (4) of being located at described enclosure, and the outside of described mandrel (4) is provided with guide rail (5), and described guide rail is combined with slip ring (6); It is characterized in that, described mandrel (4) is connected with screw mandrel (3) and rotates with it, and described guide rail (5) is connected with described shell (1), and described guide rail (5) is connected with described shell (1) by positioning element; Described slip ring (6) is dynamically connected with the axially-displaceable of described mandrel (4) along described mandrel (4), and fixes along the circumferential of described mandrel (4), to limit the rotation number of turns of described mandrel (4); Described positioning element is setting sleeve (7), and the upper end portion of described setting sleeve (7) is connected with described shell (1), and the upper end portion of described guide rail (5) is located in the inner chamber of described setting sleeve (7).
9. electric expansion valve according to claim 8, it is characterized in that, the upper end portion of described guide rail (5) is provided with fixing part (51), the upper-end surface of described setting sleeve (7) offers locating groove (71), described fixing part (51) stretches out from described locating groove (71), and the roof of the diapire of described locating groove (71) and described shell (1) clamps described fixing part (51).
10. electric expansion valve according to claim 8 or claim 9, is characterized in that, the underpart of described setting sleeve (7) is further provided with the first retainer (72) coordinating with described slip ring (6).
11. electric expansion valves according to claim 8 or claim 9, it is characterized in that, the upper-end surface of described setting sleeve (7) offers and connects boss (74), and described setting sleeve (7) is connected with described shell (1) by described connection boss (74).
12. electric expansion valves according to claim 9, it is characterized in that, described fixing part (51) comprises the first fixing part (511), and the second fixing part (512) being connected by circular arc part (513) with described the first fixing part (511); Described locating groove (71) comprises the first locating groove (711) and the second locating groove (712); Described the first fixing part (511) stretches out from described the first locating groove (711), and by described circular arc part (513), be around in the sidewall of described setting sleeve (7), and described the second fixing part (512) inserts in described the second locating groove (712).
13. electric expansion valves according to claim 8 or claim 9, is characterized in that, described mandrel (4) is sleeve, and the sidewall of described sleeve offers cell body (41); Described slip ring (6) comprises slip ring main body portion (61) and is positioned at the slip ring positioning part (62) of described slip ring main body portion (61) one end, and described slip ring positioning part (62) is located in described cell body (41).
14. electric expansion valves according to claim 13, it is characterized in that, described slip ring main body portion (61) is located at the inside of described sleeve, described slip ring positioning part (62) is stretched out and is coordinated with first retainer (72) of described positioning element from described cell body (41), to limit the rotation number of turns of described screw mandrel (3).
15. electric expansion valves according to claim 13, is characterized in that, described slip ring main body portion (61) is set in the outside of described sleeve, and described slip ring positioning part (62) is stretched in described cell body (41); Described slip ring (6) also comprises the stop pin portion (63) that is positioned at described slip ring main body portion (61) the other end, described stop pin portion (63) coordinates with first retainer (72) of described positioning element, to limit the rotation number of turns of described screw mandrel (3).
16. electric expansion valves according to claim 13, is characterized in that, described sleeve is rolled and formed by quadrilateral plate, between relative two end faces of described plate, have gap, and described gap forms described cell body (41).
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 |
| PCT/CN2011/076280 WO2012037830A1 (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 |
| KR1020127005880A KR101401127B1 (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 CN102410395A (en) | 2012-04-11 |
| CN102410395B true 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) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104930241B (en) * | 2014-03-19 | 2018-09-28 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN105333197B (en) * | 2014-08-08 | 2018-03-27 | 浙江三花智能控制股份有限公司 | A kind of motor-driven valve and its stop device, the installation method of stop rails |
| 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 |
| CN112824689B (en) * | 2019-11-21 | 2022-05-13 | 盾安环境技术有限公司 | Nut assembly and electronic expansion valve |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896860A (en) * | 1989-05-08 | 1990-01-30 | Eaton Corporation | Electrically operated refrigerant valve |
| CN200952570Y (en) * | 2006-09-18 | 2007-09-26 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664861B1 (en) * | 1992-10-15 | 1998-01-14 | Parker Hannifin Corporation | Expansion 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 |
| JP4786834B2 (en) * | 2001-09-03 | 2011-10-05 | 株式会社鷺宮製作所 | Motorized valve |
| JP4220178B2 (en) * | 2001-09-03 | 2009-02-04 | 株式会社鷺宮製作所 | Motorized valve |
| JP3997077B2 (en) * | 2001-11-14 | 2007-10-24 | 株式会社鷺宮製作所 | Motorized 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 |
| CN101929550B (en) * | 2009-06-25 | 2013-02-20 | 浙江三花股份有限公司 | Electronic expansion valve |
-
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 JP JP2012534534A patent/JP5436686B2/en active Active
- 2011-06-24 KR KR1020127005880A patent/KR101401127B1/en active IP Right Grant
- 2011-06-24 KR KR1020147005117A patent/KR101502291B1/en active IP Right Grant
- 2011-06-24 WO PCT/CN2011/076280 patent/WO2012037830A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896860A (en) * | 1989-05-08 | 1990-01-30 | Eaton Corporation | Electrically operated refrigerant valve |
| CN200952570Y (en) * | 2006-09-18 | 2007-09-26 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2003-148642A 2003.05.21 |
| JP特开2003-148643A 2003.05.21 |
| JP特开2003-74730A 2003.03.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012037739A1 (en) | 2012-03-29 |
| JP2013504033A (en) | 2013-02-04 |
| KR20120056841A (en) | 2012-06-04 |
| KR101502291B1 (en) | 2015-03-12 |
| WO2012037830A1 (en) | 2012-03-29 |
| JP5436686B2 (en) | 2014-03-05 |
| KR20140046034A (en) | 2014-04-17 |
| KR101401127B1 (en) | 2014-05-29 |
| CN102410395A (en) | 2012-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102410395B (en) | Electronic expansion valve | |
| CN205278561U (en) | Four -dimensional adjustable pipeline bracket | |
| WO2020057153A1 (en) | Height-correction automatic welding machine for small-diameter end face | |
| CN104791536A (en) | Direct-acting type electric valve | |
| CN201161333Y (en) | T shape pipe joint welding machine | |
| CN104791544A (en) | Directly operated type electric valve and assembly method thereof | |
| CN103575000B (en) | A kind of electric expansion valve | |
| CN104791502A (en) | Electric valve | |
| CN205377606U (en) | Permanent -magnet machine assembly quality | |
| CN204628743U (en) | A kind of electric expansion valve | |
| CN103424578B (en) | Probe station rotary lifting mechanism | |
| CN202517257U (en) | Jig for installing locating pins on automobile air-conditioner compressor support | |
| CN103624536A (en) | Automatic correction device for internal exhaust pipe of compressor | |
| CN103032620B (en) | Electric expansion valve | |
| CN205380431U (en) | Numerical control carousel formula bumper shock absorber welding machine | |
| CN203757116U (en) | Proportional valve | |
| CN202914861U (en) | Electronic expansion valve | |
| CN105790513A (en) | Permanent magnet motor assembly assist device and assembly method | |
| CN202176815U (en) | Two-way bellows stop valve | |
| CN102207199A (en) | Electronic expansion valve | |
| CN104953157A (en) | Battery cell sleeve equipment | |
| CN102734991A (en) | Assembly method of electronic expansion valve | |
| CN215789089U (en) | Connecting component of double-layer material platform | |
| CN110977428B (en) | Left-wheel type screw locking mechanism and left-wheel type screw locking method | |
| CN105903847B (en) | A kind of O-ring seal builder |
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. |