CN215983362U - Electronic expansion valve and air conditioning unit thereof - Google Patents
Electronic expansion valve and air conditioning unit thereof Download PDFInfo
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- CN215983362U CN215983362U CN202122111729.4U CN202122111729U CN215983362U CN 215983362 U CN215983362 U CN 215983362U CN 202122111729 U CN202122111729 U CN 202122111729U CN 215983362 U CN215983362 U CN 215983362U
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- 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
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Abstract
The utility model relates to the technical field of refrigeration, in particular to an electronic expansion valve and an air conditioning unit thereof. An electronic expansion valve comprises a valve body and a nut component, wherein a valve cavity is formed in the valve body; the nut assembly comprises a nut seat and a connecting piece, at least part of the nut seat is arranged in the connecting piece, the connecting piece is arranged in the valve body, an inner cavity is arranged in the nut seat, a balance hole communicated with the inner cavity is formed in the side wall of the nut seat in the connecting piece, the balance hole penetrates through the connecting piece to form a balance channel, and the inner cavity is communicated with the valve cavity through the balance channel. The utility model has the advantages that: the position of the balance hole is reduced, so that the mounting height of the screw rod is reduced, the opening height of the inner cavity is reduced, the integral height of the electronic expansion valve is reduced, and the cost is saved.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to an electronic expansion valve and an air conditioning unit thereof.
Background
The electronic expansion valve is one of four major components of a refrigeration cycle system, performs the function of throttling and depressurizing by changing the throttling cross section to control the flow of a refrigerant, and is generally installed between a condenser and an evaporator.
The position of a balance hole of the conventional electronic expansion valve is relatively high, and the installation position of a screw assembly and the position of an inner cavity of a nut seat are also correspondingly raised, so that the overall height of the electronic expansion valve is high, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
Based on this, the present invention provides an electronic expansion valve, aiming at the above technical problems, and the technical scheme is as follows:
an electronic expansion valve comprises a valve body and a nut component, wherein a valve cavity is formed in the valve body, and the nut component is arranged in the valve cavity; the nut assembly comprises a nut seat and a connecting piece, at least part of the nut seat is arranged in the connecting piece, the connecting piece is arranged in the valve body, an inner cavity is arranged in the nut seat, a balance hole communicated with the inner cavity is formed in the side wall of the nut seat in the connecting piece, the balance hole penetrates through the connecting piece to form a balance channel, and the inner cavity is communicated with the valve cavity through the balance channel.
So set up, can reduce the position in balanced hole to reduce the mounting height of screw rod, reduced the height of seting up of inner chamber, need not to raise the position in balanced hole in order to avoid the connecting piece, make the holistic high reduction of electronic expansion valve, save the cost.
In one embodiment, the valve body comprises a valve seat and a valve sleeve, the valve sleeve is connected to the valve seat, and a first groove is formed in the end surface of one end, away from the valve seat, of the connecting piece and communicated with the balance hole.
So set up, first recess and valve pocket intercommunication to make inner chamber and valve pocket intercommunication.
In one embodiment, the cross-section of the first groove is U-shaped, U-shaped or C-shaped.
In one embodiment, a second groove is formed in the end face of one end, away from the valve seat, of the connecting piece, and the second groove and the first groove are symmetrically arranged relative to the axis of the connecting piece.
So set up, when connecting piece and nut were moulded plastics and are fixed together, first recess and the symmetrical setting of second recess, at the flow in-process of feed liquid, can guarantee that the both sides of connecting piece are balanced, guarantee the axiality of back connecting piece and nut seat of moulding plastics.
In one embodiment, the valve body comprises a valve seat and a valve sleeve, the nut seat comprises a connecting section and a guiding section which are connected with each other, the guiding section is arranged close to the valve seat relative to the connecting section, the inner cavity is positioned in the connecting section, the balancing hole is arranged on the side surface of one end, close to the guiding section, of the connecting section, and the inner wall of one end, close to the guiding section, of the balancing hole is flush with the bottom wall of the inner cavity.
By the arrangement, more media can smoothly flow out of the inner cavity.
In one embodiment, the electronic expansion valve further includes a valve needle, the valve seat defines a valve port, the valve needle can extend into the valve port, a flow passage communicating with the valve port is formed in the valve seat, the guide section is sleeved outside the valve needle, and one end of the guide section, which is close to the valve port, extends into the flow passage.
So set up, can protect the needle to avoid the direct impact of medium, prevent that the needle vibration from assaulting the valve port inner wall and producing the noise.
In one embodiment, the coupling member includes a body segment and an insert segment connected to each other, the body segment being disposed around the nut seat and the insert segment being embedded in the nut seat.
So set up, can increase the area of sitting that the connecting piece is located in the disk seat, the joint strength of strengthening connecting piece and disk seat, simultaneously, increase the area of contact of connecting piece and nut seat to the joint strength of strengthening connecting piece and nut seat.
In one embodiment, the inner wall of the main body segment is provided with a second thread section, and the second thread section is circumferentially arranged around the inner wall of the main body segment; or, the inner wall of the main body section is provided with a groove; or, the inner wall of the main body section is provided with a boss.
So set up, can increase the bonding strength who moulds plastics between nut seat and the connecting piece.
In one embodiment, the valve body includes a valve seat with a gap between the nut seat and the valve seat.
So set up for form thermal-insulated chamber between nut seat and the disk seat, play the guard action to the nut seat.
The utility model also provides the following technical scheme:
an air conditioning unit comprises the electronic expansion valve.
Compared with the prior art, the electronic expansion valve provided by the utility model has the advantages that the balance holes are formed in the side wall of the nut seat positioned in the connecting piece and penetrate through the connecting piece to form the balance channel, so that the height of the formed positions of the balance holes is reduced, the position of the inner cavity of the nut seat and the installation position of the screw are correspondingly reduced, the internal structure of the electronic expansion valve is more compact, the integral height of the electronic expansion valve is reduced, and the cost is reduced.
Drawings
Fig. 1 is a sectional view of an electronic expansion valve provided in the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of the nut holder engaging the connector;
FIG. 4 is a schematic structural view of a connector according to one embodiment;
FIG. 5 is a schematic view of a connector according to another embodiment;
fig. 6 is a schematic structural view of a connector according to still another embodiment.
The symbols in the drawings represent the following meanings:
100. an electronic expansion valve; 101. a valve body; 10. a valve seat; 11. a first opening; 111. a first connecting pipe; 12. a second opening; 121. a second connecting pipe; 13. a flow channel; 14. a valve port; 20. a valve needle; 21. a drainage section; 30. a nut assembly; 301. a balancing channel; 31. a nut seat; 311. a guide section; 312. a bevel; 313. a connecting section; 3131. an inner cavity; 3132. a first thread segment; 314. a balance hole; 32. a screw; 321. A spring slot; 322. a bearing; 323. a first stopper; 33. an elastic member; 34. a connecting member; 341. a main body section; 3411. a second thread segment; 342. an embedding section; 343. a first groove; 344. a second groove; 40. A valve housing; 41. a valve cavity; 50. a stop assembly; 51. connecting columns; 511. a guide portion; 512. a stop block; 52. a second stop.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an electronic expansion valve 100 according to the present invention is installed in an air conditioning unit, and is used for implementing throttling and pressure reducing of a medium and controlling a medium flow rate in a pipeline of the air conditioning unit.
Specifically, the electronic expansion valve 100 includes a valve body 101, a valve needle 20 and a nut component 30, the valve body 101 includes a valve seat 10 and a valve sleeve 40, a valve cavity 41 is provided in the valve body 101, at least a portion of the nut component 30 is provided in the valve cavity 41, the valve needle 20 is disposed in the valve seat 10 in a penetrating manner, the valve needle 20 is connected to the nut component 30, and the nut component 30 can drive the valve needle 20 to move along an axial direction of the valve needle 20.
The valve seat 10 is provided with a first opening 11, a valve port 14 and a second opening 12, the second opening 12 is communicated with the valve port 14, a flow passage 13 is arranged in the valve seat 10, and the flow passage 13 is respectively communicated with the first opening 11 and the valve port 14.
A first connecting pipe 111 is arranged in the first opening 11, a second connecting pipe 121 is arranged in the second opening 12, and the first connecting pipe 111 and the second connecting pipe 121 are convenient for a user to be in butt joint with a pipeline of an air conditioning unit.
One end of the valve needle 20 is provided with a drainage section 21, in the process that the valve needle 20 moves along the axial direction, the drainage section 21 can extend into the valve port 14, the drainage section 21 is conical, and along with the difference of the depth of the drainage section 21 extending into the valve port 14, the cross section of a circulation cavity between the outer wall of the drainage section 21 and the inner wall of the valve port 14 is different, so that the circulation of a medium is controlled.
The nut assembly 30 includes a nut seat 31 and a screw 32, at least a portion of the nut seat 31 is disposed through the valve seat 10, the nut seat 31 has an inner cavity 3131, a first thread section 3132 is disposed on an inner wall of the inner cavity 3131, the screw 32 is in threaded connection with the nut seat 31 through the first thread section 3132, the nut seat 31 is connected with the valve seat 10, and one end of the screw 32 is rotatably connected with the valve needle 20.
The nut seat 31 is made of engineering plastics, so that the weight of the nut seat 31 can be reduced, the nut seat can be formed by injection molding, and the quality of threads in the nut seat 31 can be guaranteed in the injection molding process.
The nut seat 31 is made of PPS (polyphenylene sulfide), which has self-lubricating property and can reduce the abrasion between the valve needle 20 and the nut seat 31 and avoid the seizing.
Preferably, the nut seat 31 includes a connecting section 313 and a guiding section 311, the guiding section 311 is sleeved outside the valve needle 20, and the inner cavity 3131 is opened in the connecting section 313. In the present embodiment, the first opening 11 is an inlet, and the guiding section 311 guides the valve needle 20 when the medium enters the flow channel 13 from the first opening 11.
Referring to fig. 2, one end of the guiding section 311 near the valve port 14 extends into the flow channel 13, and the guiding section 311 extending into the flow channel 13 can protect the valve needle 20 from direct impact of the medium, so as to prevent noise generated by vibration of the valve needle 20 impacting the inner wall of the valve port 14.
The length of the guide section 311 extending into the flow passage 13 is L, and the inner diameter of the first connection pipe 111 is R1，4R1/5 ＞L＞R1/5. With this arrangement, the length of the nut seat 31 extending into the flow passage 13 can be maintained at an appropriate value, and if the length is too long, the flow rate of the flow passage 13 is affected, and if the length is too short, the protective effect of the nut seat 31 on the needle 20 is affected. The length L of the guiding section 311 extending into the flow passage 13 can be 3R1/5、2R1And/5, etc.
Specifically, the outer side wall of the guide section 311 and the end surface of the guide section 311 facing one end of the valve port 14 are chamfered to form a slope 312, so that the medium flows smoothly, the flow resistance is reduced, and the vortex noise is relieved.
The angle theta between the ramp 312 and the axis of the valve needle 20 is in the range 15 deg. -75 deg.. It will be appreciated that, with this arrangement, the chamfer of the guide section 311 can be set within a suitable range, and if the chamfer is too large, the protective effect of the guide section 311 on the valve needle 20 is affected, and if the chamfer is too small, the flow guiding effect of the inclined surface 312 on the medium is affected. The angle θ between the ramp 312 and the axis of the valve needle 20 may be 15 °, 25 °, 35 °, 60 °, 65 °, 75 °, etc.
A gap is formed between the nut seat 31 and the valve seat 10, so that a heat insulation cavity is formed between the nut seat 31 and the valve seat 10, the nut seat 31 is protected, and when parts such as the first connecting pipe 111 are welded, the heat insulation cavity can prevent high temperature generated during welding from affecting the nut seat 31.
Referring to fig. 3, the nut assembly 30 further includes a connecting member 34, the connecting member 34 has a hardness greater than that of the nut seat 31, and the connecting member 34 protects the nut seat 31.
The connecting piece 34 is in interference fit with the valve seat 10, the connecting piece 34 is made of metal or powder metallurgy, the metal or powder metallurgy is hard, and when the connecting piece 34 is in interference fit with the valve seat 10, the nut seat 31 can be protected from being damaged by the connecting piece 34, and the integrity of the nut seat 31 is guaranteed.
The connecting member 34 may be made of stainless steel or other material having hardness greater than that of engineering plastic.
Specifically, the connecting member 34 is in interference fit with the valve seat 10, and the hardness of the connecting member 34 is greater than or equal to the hardness of the valve seat 10, so as to ensure that the connecting member 34 deforms little or not substantially when the connecting member 34 is pressed into the valve seat 10 with interference, and the valve seat 10 can play a role in stopping rotation of the connecting member 34 and the nut seat 31.
In one embodiment, the connecting member 34 has a ring shape, and the ring-shaped connecting member 34 surrounds the outside of the nut holder 31.
In another embodiment, the connecting member 34 is a bar, and the connecting member 34 is a plurality of connecting members 34, and the plurality of connecting members 34 surrounds the outer side of the nut seat 31.
The coupling member 34 includes a main body section 341 and an insertion section 342 connected to each other, the main body section 341 is provided outside the nut holder 31, and the insertion section 342 extends in the direction of the center line of the nut holder 31 and is inserted into the nut. The embedding section 342 can increase the contact area of the connecting member 34 and the nut seat 31, thereby enhancing the connecting strength of the connecting member 34 and the nut seat 31.
The embedded section 342 is disposed at one end of the main body section 341 close to the valve port 14, and an included angle between the main body section 341 and the embedded section 342 is a right angle, an obtuse angle, or an acute angle. The embedding section 342 can increase the seating area of the connecting member 34 on the valve seat 10, and enhance the connection strength of the connecting member 34 and the valve seat 10.
In one embodiment, the main body 341 is ring-shaped, the embedded section 342 is strip-shaped, and the embedded section 342 is multiple, the multiple embedded sections 342 surround the outer side of the nut seat 31 at intervals, when the nut seat 31 and the connecting piece 34 are fixed by injection molding, feed liquid can flow into a gap between the embedded sections 342, so that the contact area between the nut seat 31 and the connecting piece 34 is increased, and the connection strength between the two is enhanced.
In one embodiment, the second thread segments 3411 are disposed on the inner wall of the main body segment 341, the second thread segments 3411 are circumferentially disposed around the inner wall of the main body segment 341, and the second thread segments 3411 increase the bonding area between the inner wall of the main body segment 341 and the nut seat 31, which can increase the bonding strength between the nut seat 31 and the connecting member 34 by injection molding.
In another embodiment, the inner wall of the main body 341 is formed with a groove (not shown), and the groove can also increase the bonding area between the inner wall of the main body 341 and the nut seat 31.
In other embodiments, the inner wall of the main body 341 is provided with a protrusion (not shown), which can also increase the combination area of the inner wall of the main body 341 and the nut seat 31. The main body segment 341 may be provided with other structures to increase the injection bonding strength between the main body segment 341 and the nut seat 31.
The nut assembly 30 further includes an elastic member 33, one end of the screw rod 32 is provided with a spring groove 321, the elastic member 33 is disposed in the spring groove 321, one end of the elastic member 33 abuts against the screw rod 32, the other end abuts against the valve needle 20, and the screw rod 32 presses the valve needle 20 through the elastic member 33.
The screw 32 is rotatably connected with the valve needle 20 through a bearing 322, the bearing 322 is a rolling bearing 322, an outer ring of the bearing 322 is fixedly connected with an inner wall of the spring groove 321, and the valve needle 20 is arranged on an inner ring of the bearing 322 in a penetrating way, so that the valve needle 20 can be prevented from rotating, and the screw 32 only controls the axial movement of the valve needle 20.
The side wall of the nut seat 31 located in the connecting piece 34 is provided with a balance hole 314, the balance hole 314 penetrates through the connecting piece 34 to form a balance passage 301, and the inner cavity 3131 and the valve cavity 41 are communicated through the balance passage 301, so that the pressures at two ends of the screw rod 32 can be balanced, and the situation that the screw rod 32 cannot descend due to overlarge medium pressure at one end of the screw rod 32 is avoided. The balance passage 301 penetrates the connector 34, so that the balance hole 314 can be positioned relatively close to the valve seat 10, and thus the balance hole 314 does not need to be positioned high to avoid the connector 34, and the position of the inner cavity 3131 of the nut seat 31 and the position of the screw 32 close to one end of the valve seat 10 can also be positioned low, that is, the structure of the electronic expansion valve 100 can be made more compact, the height thereof can be made shorter, and the material can be saved.
The end surface of the end of the connecting piece 34 far away from the valve seat 10 is opened with a first groove 343, and the first groove 343 is communicated with the balance hole 314. So set up, the opening of first recess 343 is towards valve chamber 41, directly can communicate with valve chamber 41.
The number of the balance holes 314 may be one, and may also be 2, two, three or more, and the corresponding first grooves 343 may also be one or more.
Referring to fig. 4, in one embodiment, the cross section of the first groove 343 is C-shaped, and the first groove 343 does not block the balancing hole 314.
Referring to fig. 5, in another embodiment, the cross section of the first groove 343 is U-shaped.
Referring to fig. 6, in another embodiment, first grooves 343 are u-shaped in cross-section.
In other embodiments, the cross-section of the first groove 343 may be trapezoidal, etc., as long as it communicates with the balance hole 314.
The end surface of one end of the connecting piece 34 far away from the valve seat 10 is provided with a second groove 344, and the second groove 344 and the first groove 343 are symmetrically arranged relative to the axis of the connecting piece 34.
Because the nut seat 31 and the connecting piece 34 are fixed by injection molding, and the first groove 343 and the second groove 344 are symmetrically arranged, in the flowing process of the feed liquid, the balance of two sides of the connecting piece 34 can be ensured, and the coaxiality of the connecting piece 34 and the nut seat 31 after injection molding can be ensured.
When the connecting member 34 is installed in the valve seat 10, the inner wall of the valve seat 10 deforms, and the inner walls of the first groove 343 and the second groove 344 and the outer side wall of the main body 341 can play a role in rotation stopping, so that the connecting member 34 is prevented from driving the nut seat 31 to move relative to the valve seat 10.
The balancing hole 314 is located between the first thread section 3132 and the guide section 311, and an inner wall of the balancing hole 314 near one end of the guide section 311 is flush with a bottom wall of the inner cavity 3131, i.e., the balancing hole 314 is located on a side wall of a lowermost end of the connection section 313, so that more medium can smoothly flow out of the inner cavity 3131.
The electronic expansion valve 100 further includes a stopper assembly 50, the valve housing 40 is disposed on the valve seat 10, and the stopper assembly 50 is attached to an inner wall of the valve housing 40. The end of the screw 32 away from the valve needle 20 is provided with a first stop member 323, and the first stop member 323 can cooperate with the stop assembly 50 to axially limit the screw 32, so as to prevent the screw 32 from unrestrained pressing the valve needle 20, and simultaneously prevent the screw 32 from unrestrained movement toward a direction away from the valve needle 20.
Specifically, the stopper assembly 50 includes a second stopper 52 and a coupling post 51, the coupling post 51 is coupled to an inner wall of the valve housing 40, an outer side surface of the coupling post 51 is provided with a spiral-shaped guide 511, the spiral-shaped guide 511 forms a guide path, and the second stopper 52 is movable on the guide 511.
The two ends of the connecting column 51 are respectively provided with a stop block 512, when the second stop member 52 moves to the upper part of the connecting column 51, the stop block 512 stops the second stop member 52 from further moving, and the second stop member 52 abuts against the first stop member 323 to stop the screw 32 from further rotating, so as to stop the screw 32 from further moving towards the direction away from the valve needle 20. When the second stopper 52 moves to the lower portion of the connecting rod 51, the stopper block 512 located at the lower portion blocks the second stopper 52 from further moving, and the second stopper 52 abuts against the first stopper 323 to block the screw 32 from further rotating, thereby blocking the screw 32 from further moving toward the direction in which the valve approaches the valve needle 20.
The electronic expansion valve 100 further includes a rotor (not shown) connected to the screw 32, and a coil (not shown) disposed outside the valve housing 40, wherein the coil is powered to rotate the rotor, the rotor rotates the screw 32, and the nut seat 31 is not rotated because the nut seat 31 is limited by the valve seat 10, so that the screw 32 moves along the axial direction of the screw 32, and the valve needle 20 moves along the axial direction of the screw 32.
The rotor is arranged in the valve cavity 41 and is spaced from the inner wall of the valve housing 40, so that the medium flowing out of the balancing channel 301 can enter the end of the screw 32 far away from the valve seat 10 from the gap between the rotor and the valve housing 40, thereby balancing the pressure at the two ends of the screw 32.
The utility model also provides an air conditioning unit, which comprises the electronic expansion valve 100.
During operation, the electronic expansion valve 100 controls the depth of the flow guiding section 21 of the valve needle 20 extending into the valve port 14 according to the actual condition of the air conditioning unit, so as to control the flow rate. The balance hole 314 communicated with the inner cavity 3131 of the nut seat 31 is arranged on the side wall of the nut seat 31 positioned in the connecting piece 34, and then penetrates through the connecting piece 34 to form a balance channel 301, the medium in the nut seat 31 can flow out from the balance channel 301 to one end of the screw rod 32 far away from the valve seat 10, so that the pressure balance at the two ends of the screw rod 32 is realized, and the problem that the screw rod 32 cannot move downwards is avoided. The utility model does not need to set the position of the balance hole 314 higher to avoid the connecting piece 34, thereby reducing the installation height of the screw 32, leading the structure of the electronic expansion valve 100 to be more compact, reducing the overall height and saving the cost.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An electronic expansion valve comprises a valve body (101) and a nut component (30), wherein the valve body (101) is provided with a valve cavity (41);
the nut assembly (30) is characterized by comprising a nut seat (31) and a connecting piece (34), at least part of the nut seat (31) is arranged in the connecting piece (34), the connecting piece (34) is arranged in the valve body (101), an inner cavity (3131) is arranged in the nut seat (31), a balance hole (314) communicated with the inner cavity (3131) is formed in the side wall of the nut seat (31) in the connecting piece (34), the balance hole (314) penetrates through the connecting piece (34) to form a balance channel (301), and the inner cavity (3131) is communicated with the valve cavity (41) through the balance channel (301).
2. An electronic expansion valve according to claim 1, wherein the valve body (101) comprises a valve seat (10) and a valve sleeve (40), the valve sleeve (40) is connected to the valve seat (10), and an end surface of the connecting member (34) at an end remote from the valve seat (10) is provided with a first groove (343), and the first groove (343) is communicated with the balance hole (314).
3. Electronic expansion valve according to claim 2, wherein the cross-section of the first groove (343) is U-shaped, U-shaped or C-shaped.
4. An electronic expansion valve according to claim 2, wherein the end surface of the end of the connecting piece (34) remote from the valve seat (10) is provided with a second groove (344), and the second groove (344) and the first groove (343) are arranged symmetrically with respect to the axis of the connecting piece (34).
5. An electronic expansion valve according to claim 1, wherein the valve body (101) comprises a valve seat (10) and a valve sleeve (40), the nut seat (31) comprises a connecting section (313) and a guiding section (311) which are connected with each other, the guiding section (311) is arranged close to the valve seat (10) relative to the connecting section (313), the inner cavity (3131) is located in the connecting section (313), the balancing hole (314) is opened in a side wall of the connecting section (313) close to one end of the guiding section (311), and an inner wall of the balancing hole (314) close to one end of the guiding section (311) is flush with a bottom wall of the inner cavity (3131).
6. The electronic expansion valve according to claim 5, further comprising a valve needle (20), wherein the valve seat (10) defines a valve port (14), the valve needle (20) is capable of extending into the valve port (14), a flow channel (13) communicating with the valve port (14) is formed in the valve seat (10), the guide section (311) is sleeved outside the valve needle (20), and one end of the guide section (311) close to the valve port (14) extends into the flow channel (13).
7. An electronic expansion valve according to claim 1, wherein the connection piece (34) comprises a main body section (341) and an embedding section (342) connected to each other, the main body section (341) being arranged around the nut seat (31), the embedding section (342) being embedded in the nut seat (31).
8. The electronic expansion valve according to claim 7, wherein the inner wall of the main body segment (341) is provided with a second threaded section (3411), and the second threaded section (3411) is circumferentially arranged around the inner wall of the main body segment (341); or, the inner wall of the main body section (341) is provided with a groove; or, the inner wall of the main body section (341) is provided with a boss.
9. An electronic expansion valve according to claim 1, wherein the valve body (101) comprises a valve seat (10), the nut seat (31) having a clearance from the valve seat (10).
10. An air conditioning assembly comprising an electronic expansion valve according to any of claims 1 to 9.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122111729.4U CN215983362U (en) | 2021-08-31 | 2021-08-31 | Electronic expansion valve and air conditioning unit thereof |
| JP2022080629A JP7369235B2 (en) | 2021-08-31 | 2022-05-17 | Electronic expansion valve and its air conditioning unit |
| KR1020220061913A KR20230032851A (en) | 2021-08-31 | 2022-05-20 | Electronic expansion valve and air conditioner unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122111729.4U CN215983362U (en) | 2021-08-31 | 2021-08-31 | Electronic expansion valve and air conditioning unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215983362U true CN215983362U (en) | 2022-03-08 |
Family
ID=80582710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122111729.4U Active CN215983362U (en) | 2021-08-31 | 2021-08-31 | Electronic expansion valve and air conditioning unit thereof |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7369235B2 (en) |
| KR (1) | KR20230032851A (en) |
| CN (1) | CN215983362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143027A1 (en) * | 2022-01-28 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | Nut seat and electronic expansion valve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5681396B2 (en) | 2010-06-29 | 2015-03-04 | 株式会社不二工機 | Motorized valve |
| JP5572516B2 (en) | 2010-10-18 | 2014-08-13 | 株式会社不二工機 | Motorized valve |
| JP5702316B2 (en) | 2012-02-10 | 2015-04-15 | 株式会社鷺宮製作所 | Expansion valve |
| JP2014052078A (en) | 2013-10-24 | 2014-03-20 | Saginomiya Seisakusho Inc | Motor operated valve |
| JP7098557B2 (en) | 2019-03-05 | 2022-07-11 | 株式会社鷺宮製作所 | Solenoid valve and refrigeration cycle system including it |
| WO2020189736A1 (en) | 2019-03-20 | 2020-09-24 | 株式会社不二工機 | Electric valve |
| CN212480175U (en) | 2020-06-10 | 2021-02-05 | 浙江三花制冷集团有限公司 | Electric valve |
-
2021
- 2021-08-31 CN CN202122111729.4U patent/CN215983362U/en active Active
-
2022
- 2022-05-17 JP JP2022080629A patent/JP7369235B2/en active Active
- 2022-05-20 KR KR1020220061913A patent/KR20230032851A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143027A1 (en) * | 2022-01-28 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | Nut seat and electronic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7369235B2 (en) | 2023-10-25 |
| JP2023035812A (en) | 2023-03-13 |
| KR20230032851A (en) | 2023-03-07 |
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