WO2018205746A1 - 电子膨胀阀、热管理组件、冷却系统以及电子膨胀阀制造方法 - Google Patents
电子膨胀阀、热管理组件、冷却系统以及电子膨胀阀制造方法 Download PDFInfo
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- WO2018205746A1 WO2018205746A1 PCT/CN2018/079261 CN2018079261W WO2018205746A1 WO 2018205746 A1 WO2018205746 A1 WO 2018205746A1 CN 2018079261 W CN2018079261 W CN 2018079261W WO 2018205746 A1 WO2018205746 A1 WO 2018205746A1
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- Prior art keywords
- valve
- electronic expansion
- sensor
- expansion valve
- pin
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 16
- 230000001939 inductive effect Effects 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 7
- 238000004378 air conditioning Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/029—Electromagnetically actuated valves
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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
- 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
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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
- 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
- F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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- 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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
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- 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
- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
-
- 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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
-
- 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
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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
Definitions
- the cooling system includes a compressor, an evaporator, a condenser, and a throttling element.
- an electronic expansion valve as a throttling element.
- the control of electronic expansion is accomplished by a pressure sensor and a temperature sensor disposed on the pipeline, and the controller calculates the degree of superheat according to a corresponding control program. In this way, the sensor and the electronic expansion valve are respectively connected to the cooling system through the pipeline, which cools the system and the assembly process is complicated.
- the body includes a guiding portion and a main body portion, the diameter of the guiding portion is smaller than a diameter of the main body portion, a step surface is formed between the guiding portion and the main body portion, and at least part of the through hole has a smaller diameter than the a diameter of the main body portion, the guiding portion is connected to the pin, the main body portion is located between the guiding portion and the pin needle, and the guiding portion and the pin are both passed through
- the through hole enters the inner cavity of the cover, the stepped surface limits a distance from the sensor into the inner cavity of the cover, and the main body portion is welded and sealed to the lower case.
- the first limiting portion includes a circlip and a limiting pin
- the valve body is provided with an annular groove
- the body includes a flange portion
- the circlip can be embedded in the annular groove
- the circlip is defined a movement of the flange portion above the valve body, a lower end surface of the flange portion contacting the valve body, the valve body including a first mounting portion, the flange portion including a second mounting portion
- the limit pin is disposed between the first mounting portion and the second mounting portion.
- the lower casing is injection-molded and fixed to the stator assembly, the electric control portion and the stator assembly are disposed in parallel on the same side of the valve body, and the electric control panel is vertically disposed with the sensor, and the sensor is The central axes of the spools are arranged in parallel.
- the invention also discloses a thermal management component comprising an electronic expansion valve and a heat exchanger, the electronic expansion valve and the heat exchanger being connected as an integrated unit, the electronic expansion valve comprising a first inlet and a second inlet a first outlet and a second outlet, the electronic expansion valve including a spool assembly, a stator assembly, an electric control portion, and a sensor, the spool assembly including a valve seat, a spool, and a rotor assembly, wherein the valve seat has at least a portion is disposed between the first inlet and the first outlet, the valve core cooperates with the valve seat to change a flow rate of a working medium in the first passage, and the electric control portion includes an electric control board.
- A4 installing an electric control board, and electrically connecting the electric control board to the stator assembly and the sensor;
- Figure 4 is a perspective view showing the other direction of the electronic expansion valve
- Figure 12 is a schematic cross-sectional view showing a second embodiment of the electronic expansion valve
- Figure 13 is a front elevational view showing the third embodiment of the electronic expansion valve
- Figure 16 is a cross-sectional structural view showing a fourth embodiment of the electronic expansion valve
- Fig. 21 is a schematic structural view of a valve body of a first embodiment of an electronic expansion valve.
- the senor 5 includes a main body 51, an inductive head 52 and a pin pin 53, respectively, and the inductive head 52 and the pin pin 53 are respectively disposed at two ends of the body 51, and the inductive head 52 is used to sense the temperature of the environment or
- the pin or pin 53 is electrically connected to the electric control board 102.
- the pin pin 53 is a press-fit pin, so that the pin pin 53 and the electric control board 102 are electrically connected by a press fit.
- the sensor 5 is assembled with the electronic control board 102 without soldering. As long as the jack of the electronic control board 102 is matched with the pin pin 53 and pressed tightly, the process can be simplified while avoiding the situation of virtual soldering.
- the guiding portion may not be provided, so that only the pin pin 53 protrudes into the body cavity of the cover body, and the specific scheme is as shown in FIG. 51 does not include the guiding portion, which is advantageous for reducing the cost of the sensor 5, and does not affect the strength of the pin needle 53 when the distance of the electric control board 102 from the outer surface of the lower casing 111 is not affected, such a structure, the lower casing
- the through hole 113 of the 111 only needs to pass through the pin needle 53, and the sealing of the through hole 113 is achieved by welding.
- a sealing ring 96 is disposed between the sensor 5 and the valve body 3, and the sealing ring 96 is pressed between the second step surface 534 and the second bottom portion 33 of the valve body; Sealing action reduces the risk of leakage of the working medium or refrigerant in the second passage through the second chamber
- Step a2 also includes placing the seal on the second bottom prior to placing the sensor.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
Description
Claims (15)
- 一种电子膨胀阀,包括阀芯组件、电控部以及定子组件,所述阀芯组件包括阀座、阀芯以及转子组件,所述阀座形成有阀口,所述阀芯能够相对于所述阀座运动并改变所述阀口的开度,所述电控部能够控制所述定子组件,所述转子组件带动所述阀芯的运动,其特征在于:所述电子膨胀阀还包括传感器,所述传感器为温度传感器或压力传感器或温度/压力传感器,所述电控部包括电控板,所述定子组件和所述传感器与所述电控板电连接。
- 根据权利要求1所述的电子膨胀阀,其特征在于:所述传感器包括本体、感应头以及引脚针,所述感应头和所述引脚针分别设置于所述本体的两端,所述引脚针直接与所述电控板电连接。
- 根据权利要求1或2所述的电子膨胀阀,其特征在于:所述电控部还包括罩体,所述罩体形成有罩体内腔,所述电控板设置于罩体内腔,所述罩体包括上壳体和下壳体,所述上壳体和所述下壳体分别成形并固定连接,所述下壳体成形有通孔,至少所述引脚针能够穿过所述通孔。
- 根据权利要求3所述的电子膨胀阀,其特征在于:所述本体包括导向部和主体部,所述导向部的直径小于所述主体部的直径,所述导向部和所述主体部之间形成有台阶面,所述导向部与所述引脚针连接,所述主体部位于所述导向部和所述引脚针之间,所述导向部和所述引脚针均穿过所述通孔进入所述罩体内腔,所述台阶面限制所述传感器伸入到所述罩体内腔的距离,所述主体部与所述下壳体焊接密封。
- 根据权利要求3或4所述的电子膨胀阀,其特征在于:所述电子膨 胀阀还包括阀体,所述阀体包括第一进口、第一出口、第二进口、第二出口,所述第一进口和第一出口之间成形有第一通道,所述第二进口和所述第二出口之间成形有第二通道,所述阀座至少有部分设置于所述第一通道或者与所述第一通道连通的第一腔,所述感应头位于所述第二通道或者与所述第二通道连通的第二腔,所述传感器与所述阀体直接焊接固定连接并密封或者通过第一限位部固定连接,所述第一限位部至少能够限制所述传感器与所述阀体的转动。
- 根据权利要求5所述的电子膨胀阀,其特征在于:所述第一限位部包括连通孔和外螺纹段,所述传感器的主体部能够穿过所述连通孔,所述阀体对应于所述第二腔所在位置包括内螺纹段,所述本体还包括凸缘部,所述凸缘部位于所述主体部和所述引脚针之间,所述凸缘部的外径大于所述主体部的外径,所述凸缘部不能通过所述连通孔,所述凸缘部的下端面与所述阀体接触,所述第一限位部套设于所述主体部的外周并通过所述凸缘部限位,所述外螺纹段与所述内螺纹段螺纹连接。
- 根据权利要求6所述的电子膨胀阀,其特征在于:所述传感器和所述阀体之间设置有密封圈,所述本体还包括连接部,所述连接部位于所述凸缘部和感应头之间,所述连接部的直径小于所述主体部的直径,所述连接部和所述凸缘的下端面形成台阶部,所述密封圈压于所述凸缘的下端面和阀体之间。
- 根据权利要求6或7所述的电子膨胀阀,其特征在于:所述电子膨胀阀还包括一限位销,所述阀体设置有第一安装部,所述凸缘部设置有第二安装部,所述限位销安装于所述第一安装部和所述第二安装部之间,所 述限位销限定所述传感器相对于所述阀体的安装位置。
- 根据权利要求5所述的电子膨胀阀,其特征在于:所述第一限位部包括卡簧和限位销,所述阀体设置有环形槽,所述本体包括凸缘部,所述卡簧能够嵌于所述环形槽内,所述卡簧限定所述凸缘部向所述阀体上方的移动,所述凸缘部的下端面与所述阀体接触,所述阀体包括第一安装部,所述凸缘部包括第二安装部,所述限位销设置于所述第一安装部和所述第二安装部之间。
- 根据权利要求9所述的电子膨胀阀,其特征在于:所述传感器和所述阀体之间设置有密封圈,所述本体还包括连接部,所述连接部位于所述主体部和所述感应头之间,所述连接部的直径小于所述主体部的直径,所述连接部设置有环形凹槽,所述密封圈位于所述环形凹槽。
- 根据权利要求3至10任一项所述的电子膨胀阀,其特征在于:所述下壳体与所述定子组件注塑固定,所述电控部与所述定子组件并排设置于所述阀体的同一侧,所述电控板与所述传感器垂直设置,所述传感器与所述阀芯的中心轴平行设置。
- 根据权利要求3至10任一项所述的电子膨胀阀,其特征在于:所述下壳体与所述定子组件注塑固定,所述电控部与所述定子组件并排设置于所述阀体的同一侧,所述电控板与所述传感器垂直设置,所述传感器与所述阀芯的中心轴平行设置。
- 一种热管理组件,包括电子膨胀阀和换热器,所述电子膨胀阀和所述换热器连接为一集成单元,所述电子膨胀阀包括第一进口、第二进口、第一出口和第二出口,所述电子膨胀阀包括阀芯组件、定子组件、电控部 以及传感器,所述阀芯组件包括阀座、阀芯以及转子组件,其中所述阀座至少有部分设置于所述第一进口和所述第一出口之间,所述阀芯与所述阀座配合改变所述第一通道内的工作介质的流量,所述电控部包括电控板,所述传感器包括主体部、感应头以及引脚针,所述感应头设置于所述第二进口和第二出口之间形成第二通道或者所述感应头设置于所述第二进口和所述第二出口之间,所述第二通道或者与所述第二通道连通的第二腔,所述引脚针与所述电控板电连接。
- 一种电子膨胀阀制造方法,所述电子膨胀阀包括定子组件、电控部、阀芯组件、传感器以及阀体,所述阀芯组件包括阀芯、阀座以及转子组件,所述电控部包括电控板和罩体,所述方法包括以下步骤:a1、将所述阀芯组件安装于阀体;a2、将所述传感器与所述阀体固定;a3、将所述定子组件与所述阀体固定;a4、安装电控板,并使电控板与定子组件以及传感器电连接;a5、将用于容置电控板的罩体的密封。
- 一种冷却系统,包括压缩机、蒸发器、冷凝器以及第一电子膨胀阀,所述第一电子膨胀阀设置于所述冷凝器和所述蒸发器之间,其特征在于:所述第一电子膨胀阀包括阀芯组件、定子组件、电控部以及传感器,所述阀芯组件包括阀芯、阀座以及转子组件,所述电控部包括电控板,所述第一电子膨胀阀包括第一进口、第二进口、第一出口和第二出口,其中所述第一进口和第一出口之间形成第一通道,所述第二进口和第二出口之间形成第二通道,所述阀座至少有部分设置于所述第一通道或者与所述第 一通道连通的第一腔,所述阀芯与所述阀座配合改变所述第一通道的制冷剂的流量,所述传感器包括主体部、感应头以及引脚针,所述感应头设置于所述第二通道或者与所述第二通道连通的第二腔,所述引脚针直接与所述电控板电连接,所述蒸发器连通所述第一通道和所述第二通道。
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