WO2017101878A1 - 二段式电子膨胀阀 - Google Patents
二段式电子膨胀阀 Download PDFInfo
- Publication number
- WO2017101878A1 WO2017101878A1 PCT/CN2016/110719 CN2016110719W WO2017101878A1 WO 2017101878 A1 WO2017101878 A1 WO 2017101878A1 CN 2016110719 W CN2016110719 W CN 2016110719W WO 2017101878 A1 WO2017101878 A1 WO 2017101878A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cavity
- valve
- electronic expansion
- expansion valve
- stage electronic
- Prior art date
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 18
- 230000030279 gene silencing Effects 0.000 claims description 17
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 5
- 238000002788 crimping Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
- F01L25/08—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by electric or magnetic means
-
- 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
- F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/24—Silencing apparatus characterised by method of silencing by using sound-absorbing materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
-
- 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
Definitions
- the invention relates to the technical field of refrigeration equipment, in particular to a two-stage electronic expansion valve for an inverter air conditioner.
- the electronic expansion valve is mainly used in the inverter air conditioner system. It drives the motor through high pulse frequency current to directly drive the reducer, and through the transmission of the thread pair and the valve stem, the valve needle is raised or lowered, and the valve opening degree is changed, thereby automatically Regulate the refrigerant flow so that the refrigerant circuit system remains optimal at all times.
- FIG. 1 is a schematic structural view of an electronic expansion valve in the prior art.
- the electronic expansion valve is mainly composed of a valve body portion for flow regulation and a coil portion for driving.
- the coil portion includes: a motor 1', a speed reducer 2', a threaded substructure 5' for converting the rotational motion of the motor 1' into a vertical movement of the screw rod 3', a nut 4', and a motor housing 6', the motor housing 6' Riveted to the outside of the gear case 9' outside the speed reducer 2'.
- the valve body portion includes a valve seat 14', a valve stem 15', and a core member such as a bellows 11' that controls the lift of the valve needle 12'.
- the principle of operation is as follows: the rotor of the motor 1' rotates, and the speed reducer 2' rotates. Through the transmission of the thread pair structure 5', the screw rod 3' moves downward, against the force transmitting member bushing 16' and the valve stem 15'. The valve needle 12' is moved downward. At this time, the bellows 11' is in a continuously stretched state. When a reverse pulse is applied, the screw rod 3' moves upward, and the valve needle 12' continuously moves upward under the return elastic force of the bellows 11' and the system pressure, thereby changing the opening degree of the valve port 13', so that the flow passage area occurs. Change, to achieve the purpose of controlling flow and regulating system overheating.
- the technical problem to be solved by the present invention is to provide a two-stage electronic expansion valve for an inverter air conditioner, which can reduce abnormal noise in a small flow adjustment range and improve adjustment precision in small flow adjustment.
- the invention provides the following technical solutions:
- a two-stage electronic expansion valve includes a motor, a reducer connected to an output end of the motor, a valve stem jacket of the two-stage electronic expansion valve is provided with a bellows, and the bellows reciprocates with the valve stem Stretching or contracting;
- the two-stage The electronic expansion valve further includes a valve core, the valve core is opened or closed by the valve stem, and a small flow regulating mechanism is further disposed inside the valve core, and the small flow regulating mechanism is a lower end portion of the valve stem and a second valve port disposed inside the valve core;
- the valve core has a cylindrical shape, and a first cavity and a second cavity are respectively disposed at two ends thereof, and the second valve port is opened between the first cavity and the second cavity, the valve core A flow hole is provided, the flow hole communicating the first cavity with an outer space of the valve body.
- a normally-passing device is further disposed between the first cavity and the second cavity, so that a certain flow rate is always maintained between the first cavity and the second cavity; the first cavity is further disposed There is a first silencing member that covers the normally-on device.
- the first sound absorbing member has an annular shape and is disposed at an end surface of the normally-on device.
- the normally-on device is a normally-on hole provided inside the valve body.
- a second silencing member is disposed in the first cavity, and the fluid flowing in from the circulation hole is silenced by the second muffling member and then flows out from the second valve port.
- a third sound absorbing member is disposed in the second cavity.
- the bottom of the spool is fixed in the second cavity by crimping deformation.
- the two-stage electronic expansion valve provided by the invention has a contact state between the lower end portion of the valve core and the first valve port in the small flow regulating section, and most of the fluid flows in from the flow hole, and is silenced by the second muffling component. , flowing through the second valve port. Another part of the fluid flows into the first cavity from the gap between the valve stem and the blocking portion, and then is again silenced by the third sound absorbing member. When the fluid flows through the sound absorbing member, the fluid is sufficiently broken by the multi-layer mesh function. , which eliminates whirls like whistling and reduces noise. At the same time, since the small flow adjustment is mainly adjusted by the second valve port disposed inside the spool, the flow adjustment range is wider and the accuracy is higher under the same pulse number condition.
- FIG. 1 is a schematic structural view of an electronic expansion valve in the prior art
- FIG. 2 is a schematic structural view of a specific embodiment of a two-stage electronic expansion valve provided by the present invention.
- Figure 3 is a partial cross-sectional view showing a specific embodiment of the present invention.
- FIG. 4 is a schematic view showing the structure of a gasket according to an embodiment of the present invention.
- FIG. 2 is a schematic structural view of a two-stage electronic expansion valve according to a specific embodiment of the present invention
- FIG. 3 is a schematic structural view of a valve core according to an embodiment of the present invention.
- the two-stage electronic expansion valve provided by the present invention is mainly composed of a valve body portion for flow regulation and a coil portion for driving.
- the coil part comprises: a motor 1, a speed reducer 2 connected to the output end of the motor 1, and a threaded substructure 5, the lower end of the speed reducer 2 is connected with a screw rod 3 through a thread pair structure 5, and the thread pair structure 5 is used for rotating the motor 1 It is converted into a reciprocating motion of the screw 3.
- a nut 4 is connected between the screw shaft 3 and the gear case 9, and a gear box 9 is mounted on the outer casing of the speed reducer 2.
- the motor casing 6 of the motor 1 is riveted to the outside of the gear box 9.
- the valve body portion includes a valve seat 14 and a valve stem 15, and the valve stem 15 is jacketed with a bellows 11.
- the bellows 11 is stretched or contracted with the reciprocating motion of the valve rod 15, and since the valve body 12 and the valve stem 15 are movably coupled to each other, the lifting and lowering of the valve stem 15 can be used to lift and lower the valve body 12, thereby setting The first valve port 13 on the valve seat 14 is opened or closed.
- Coupled together means that the valve core and the valve stem can move relative to each other during operation, but cannot be separated from each other.
- the valve body 12 has a substantially cylindrical appearance and has a large diameter section 121 and a small diameter section 122.
- the first cavity 123 is opened at one end of the large diameter section 121, and the second cavity 124 is opened at the end of the small diameter section 122.
- the first cavity 123 and the second cavity 124 are opened.
- An annular flange is disposed on an inner wall of the valve core, and an inner hole of the annular flange forms a second valve port, and the normally-on device is disposed on the annular flange.
- the outer peripheral wall of the large diameter section 121 is provided with a flow portion 1211.
- the flow portion 1211 is a plurality of planes machined on the outer peripheral wall of the large diameter section 121 for fluid circulation.
- those skilled in the art can make various designs for the shape of the circulation portion 1211, such as grooving, punching, etc., based on the concept of the present invention, and only need to be able to realize the upper and lower ends of the large diameter section 121.
- the fluid can be passed through.
- the lower end portion 152 of the valve stem 15 extends into the first cavity 123 and cooperates with the second valve port 125 to open and close the second valve port 125 through contact with or away from the second valve port 125. Thereby regulating the flow.
- the valve body 12 is connected to each other.
- a blocking portion 126 is further provided, and the blocking portion 126 is fixedly connected to the inner wall of the large diameter section 121. Both can be fixed by welding, crimping or other means.
- An annular groove 151 is provided at a position near the end of the valve stem 15, and a latching member is provided in the annular groove 151.
- the latching member maintains a relatively movable connection between the valve stem 15 and the blocking portion 126.
- the latching member is specifically a washer 127. Specifically, the washer 127 is clamped in the annular groove 151 so that the valve stem 15 cannot be disengaged from the restriction of the blocking portion 126.
- the valve stem 15 can be inserted into the blocking portion 126, the gasket 127 is placed in the annular groove 151, and then the blocking portion 126 is fixed on the large diameter section 121 of the valve core, and the blocking portion 126 and the washer 127 are common. The extreme position in which the valve stem 15 moves upward is limited.
- FIG. 4 is a schematic view showing the structure of a gasket according to an embodiment of the present invention.
- the washer 127 is generally "C" shaped with an opening 1272 for insertion into the annular groove 151 of the valve stem 15.
- the inside of the washer 127 is provided with three abutting portions 1271 which are closely attached to the peripheral wall of the annular groove 151 after assembly, and a vacant portion is further disposed between the adjacent abutting portions 1271.
- FIG. 4 is a specific implementation manner, and those skilled in the art can make some changes under the technical suggestion. For example, the vacancy part is cancelled, and the abutting portion 1271 is integrated into one body, and the object of the invention can also be achieved.
- the clamping or fixing of the annular groove 151 is not limited to the form of a gasket.
- a through hole may be provided in the annular groove 151, and then a positioning pin may be used to also enable the valve rod 15 and the blocking portion 126. Form a limit connection. The above positioning method obviously also falls within the protection scope of the present invention.
- the outer peripheral wall of the small diameter section 122 of the valve body 12 is provided with a flow hole 1221, and the number of the flow holes 1221 may be one or more.
- the flow hole 1221 communicates the first cavity 123 with the outer space of the valve body 12 so that fluid can flow from the flow hole 1221 into the first cavity 123.
- a second silencing member 128 is further disposed in the first cavity 123 between the circulation hole 1221 and the second valve port 125, so that the fluid flowing in from the circulation hole 1221 flows through the second muffling member 128 to be silenced and then from the second The valve port 125 flows out.
- the second silencing member 128 can be designed as an annular body to fill the first cavity 123 as shown in FIG.
- the lower end portion of the small diameter section 122 is provided with a second cavity 124, and the second cavity 124 is provided with a third silencing member 129.
- the lower end portion of the small diameter section 122 can be deformed by crimping, thereby fixing the third sound absorbing member 129 in the second cavity 124.
- the second silencing member 128 and the third silencing member 129 may be formed by a porous screen or wire winding, powder sintering, or the like.
- the third sound absorbing member comprises a plurality of layers of sound absorbing blocks arranged in a stack.
- the material or shape of the sound absorbing member is not limited at all.
- a normally-on device is provided between the first cavity 123 and the second cavity 124.
- the normally-on device is the normally-through hole 130, so that a part of the flow between the two nozzles of the two-stage electronic expansion valve is always in circulation.
- the first valve port 13 it is not limited to the opening of the above-mentioned normal through hole 130, and various technical means can be replaced.
- an inclined hole is formed in the small diameter section 122, and the second cavity 124 is directly communicated with the outside of the valve body 12, or a plurality of flow grooves are formed on the inner peripheral wall of the first valve port 13 by means of slotting. Can still have a certain degree when the valve body is closed flow. It should be understood by those skilled in the art that the use of several alternatives based on the inventive concept should also fall within the scope of the present invention.
- a small flow adjustment mechanism is formed between the lower end portion 152 of the valve stem 15 and the second valve port 125 in the spool 12.
- a first silencing member 1231 is further provided, and the first silencing member 1231 has an annular structure and is made of a porous member.
- the first silencing member 1231 is not limited to a ring shape, and only the normal through hole 130 may be covered.
- the fluid even if the fluid flows in from the gap between the valve stem 15 and the blocking portion 126 without being filtered and silenced by the second silencing member 128, the fluid must pass through the first silencing member 1231 due to the presence of the first silencing member 1231. It can flow into the normal through hole 130, thereby achieving the purpose of further silencing.
- valve stem 15 When the valve stem 15 is moved from the top to the bottom, the bellows 11 is in a stretched state, the spool 12 is subjected to a differential pressure force, and the lower end surface of the blocking portion 126 is always in contact with the upper end surface of the washer 127.
- the valve stem 15 When the spool 12 is moved downward to the extreme position, after the first valve port 13 is in contact, the valve stem 15 continues to move downward, and at this time, the washer 127 moves down with the valve stem 15 to disengage from the blocking portion 126.
- the two-stage electronic expansion valve is in a closed state.
- the motor 1 When the valve is opened, the motor 1 is energized, the bellows 11 is contracted, and the valve stem 15 is moved from the bottom to the top. Since the spool 12 is subjected to the differential pressure, the lower end surface of the spool 12 remains in contact with the first valve port 13. The valve stem 15 continues to move up until the upper end surface of the washer 127 comes into contact with the lower end surface of the blocking portion 126. During the continued upward movement of the valve stem 15, the blocking block 126 is moved up together, at which point the spool as a whole begins to move upward. When the motor 1 is turned on to the full-open pulse, the two-stage electronic expansion valve as a whole is fully opened.
- Control that is, small flow adjustment section. Due to the reduced valve port, the flow rate is adjusted to a wider range under the same number of pulses.
- the valve stem 15 drives the valve core 12 to move upward as a whole, the flow rate is mainly controlled by the opening degree between the spool 12 and the first valve port 13, that is, the large flow regulating section.
- the lower end portion of the spool 12 and the first valve port 13 are always in contact with each other.
- most of the fluid flows in from the circulation hole 1221, is silenced by the second silencing member 128, and then flows through the second valve port 125.
- Another part of the fluid flows into the first cavity 123 from the gap between the valve stem 15 and the blocking portion 126, and then is again muffled through the third sound absorbing member 129, and the fluid is subjected to the multi-layer mesh when flowing through the sound absorbing member. It is fully broken up, eliminating whirls like whistling and reducing noise.
- the two-stage electronic expansion valve provided by the present invention passes through the mesh-shaped sound absorbing member, and the internal vortex and the bubble are largely eliminated and disturbed, thereby solving the problem that the existing electronic expansion valve is adjusted at the initial small flow rate. Abnormal noise problem.
- the small flow rate adjustment is mainly performed by the second valve port 125 provided inside the valve body 12, the flow rate adjustment range is wider and the precision is higher under the same pulse number condition.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
Description
Claims (10)
- 一种二段式电子膨胀阀,包括电机、连接于所述电机输出端的减速器,所述二段式电子膨胀阀的阀杆外套装有波纹管,所述波纹管随所述阀杆的往复运动拉伸或收缩;其特征在于,所述二段式电子膨胀阀还包括阀芯,所述阀芯在所述阀杆的带动下对第一阀口进行打开或关闭,所述阀芯内部还设置有小流量调节机构,所述小流量调节机构包括所述阀杆的下端部与设置在所述阀芯内部的第二阀口;所述阀芯呈筒状,其两端分别设置有第一腔体和第二腔体,所述第二阀口开设在所述第一腔体和第二腔体之间,所述阀芯设置有流通孔,所述流通孔将所述第一腔体与所述阀芯的外部空间相连通;所述第一腔体和所述第二腔体之间还设置有常通装置,使所述第一腔体和所述第二腔体之间始终保持一定的流量;所述第一腔体内还设置有第一消音部件,所述第一消音部件覆盖所述常通装置。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述第一消音部件呈环状,并设置在所述常通装置的端面。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述常通装置为设置在所述阀芯内部的常通孔。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述第一腔体内设置有第二消音部件,使从所述流通孔流入的流体经第二消音部件进行消音后再从所述第二阀口流出。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述第二腔体内设置有第三消音部件。
- 根据权利要求5所述的二段式电子膨胀阀,其特征在于,所述阀芯的底部通过压接变形的方式,将所述第三消音部件固定在所述第二腔体内。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述第一腔体内还固定设置有阻挡部,所述阀杆靠近端部的位置设置有环形槽,在所述环形槽中设置有卡位部件,所述卡位部件能使所述阀杆和所述阻挡部之间保持可相对运动的连接状态。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述第一腔***于所述第二腔体的上方。
- 根据权利要求1所述的二段式电子膨胀阀,其特征在于,所述阀芯的内壁上设置有环状凸缘,所述环状凸缘的内孔形成所述第二阀口,所述常通装置设置在所述环状凸缘上。
- 根据权利要求6所述的二段式电子膨胀阀,其特征在于,所述第三消音部件包括叠置设置的多层消音块。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020187020447A KR102590435B1 (ko) | 2015-12-19 | 2016-12-19 | 2단식 전자 팽창 밸브 |
JP2018529560A JP6921824B2 (ja) | 2015-12-19 | 2016-12-19 | 二段式電子膨張弁 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201510968700.4 | 2015-12-19 | ||
CN201510968700.4A CN106895153A (zh) | 2015-12-19 | 2015-12-19 | 二段式电子膨胀阀 |
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WO2017101878A1 true WO2017101878A1 (zh) | 2017-06-22 |
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PCT/CN2016/110719 WO2017101878A1 (zh) | 2015-12-19 | 2016-12-19 | 二段式电子膨胀阀 |
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JP (1) | JP6921824B2 (zh) |
KR (1) | KR102590435B1 (zh) |
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CN107606234A (zh) * | 2017-07-28 | 2018-01-19 | 上海卫星工程研究所 | 一种基于波纹管结构的温控阀 |
CN109469997B (zh) * | 2017-09-07 | 2021-10-29 | 浙江三花智能控制股份有限公司 | 制冷***及其电子膨胀阀 |
CN108591570B (zh) * | 2018-05-08 | 2020-06-23 | 九牧厨卫股份有限公司 | 一种电机开关阀控制方法及相关的控制*** |
CN109297217A (zh) * | 2018-10-12 | 2019-02-01 | 格力电器(杭州)有限公司 | 节流过滤装置及其电器设备 |
CN111219518B (zh) * | 2018-11-27 | 2022-03-08 | 浙江盾安禾田金属有限公司 | 电子膨胀阀 |
CN109899677A (zh) * | 2019-04-01 | 2019-06-18 | 太仓中科信息技术研究院 | 流速控制充气装置 |
CN111829216A (zh) * | 2019-04-23 | 2020-10-27 | 浙江盾安禾田金属有限公司 | 电子膨胀阀及具有其的制冷器 |
JP7349415B2 (ja) * | 2020-07-09 | 2023-09-22 | 株式会社鷺宮製作所 | 二段式電動弁及び冷凍サイクルシステム |
JP7391003B2 (ja) * | 2020-10-23 | 2023-12-04 | 株式会社鷺宮製作所 | 電動弁 |
JP7386191B2 (ja) * | 2020-12-15 | 2023-11-24 | 株式会社鷺宮製作所 | 電動弁 |
CN115031448B (zh) * | 2022-05-17 | 2024-03-08 | 合肥通用机械研究院有限公司 | 一种基于膨胀阀的手自一体化调节装置 |
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CN106895153A (zh) | 2017-06-27 |
KR20180095654A (ko) | 2018-08-27 |
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