WO2021233326A1 - 一种电子膨胀阀和热管理组件 - Google Patents

一种电子膨胀阀和热管理组件 Download PDF

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Publication number
WO2021233326A1
WO2021233326A1 PCT/CN2021/094544 CN2021094544W WO2021233326A1 WO 2021233326 A1 WO2021233326 A1 WO 2021233326A1 CN 2021094544 W CN2021094544 W CN 2021094544W WO 2021233326 A1 WO2021233326 A1 WO 2021233326A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
main
sensor
housing
electronic expansion
Prior art date
Application number
PCT/CN2021/094544
Other languages
English (en)
French (fr)
Inventor
万轩臣
李青
张俊新
Original Assignee
法雷奥汽车空调湖北有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 法雷奥汽车空调湖北有限公司 filed Critical 法雷奥汽车空调湖北有限公司
Priority to EP21809818.4A priority Critical patent/EP4261479A1/en
Publication of WO2021233326A1 publication Critical patent/WO2021233326A1/zh

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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
    • 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
    • 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
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • 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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/06—Damage
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/18—Optimization, e.g. high integration of refrigeration 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/191—Pressures near an expansion valve
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21174—Temperatures of an evaporator of the refrigerant at the inlet of the evaporator
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • 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 an electronic expansion valve and a thermal management component.
  • the traditional air-conditioning system includes four major parts, namely compressor, evaporator, condenser and throttling device.
  • the throttling device can include an expansion valve and a capillary tube.
  • Expansion valves can be divided into thermal expansion valves and electronic expansion valves according to the driving principle.
  • Electronic expansion valves can be divided into electromagnetically driven electronic expansion valves and motor-driven electronic expansion valves according to different driving modes.
  • Automobile air-conditioning system includes the above four major parts.
  • automobile air-conditioning system usually uses expansion valve as throttling device.
  • Chinese patent application CN101551174A discloses an automobile air conditioning system, which uses a thermal expansion valve as a throttling device.
  • electronic expansion valves are also used as throttling devices in automobile air conditioning systems.
  • the electronic expansion valve in the prior art includes a valve body, a valve assembly, a sensor, and an electric control board.
  • the sensor installation stability of the electronic expansion valve in the prior art is not good.
  • the object of the present invention is to provide an electronic expansion valve, which has the advantage of stable installation of the refrigerant sensor.
  • the object of the present invention is also to provide a thermal management assembly, which includes the above-mentioned electronic expansion valve.
  • the electronic expansion valve for achieving the purpose includes: a valve body having a first refrigerant inlet, a first refrigerant outlet, a second refrigerant inlet, and a second refrigerant outlet, wherein the first refrigerant inlet and the first refrigerant outlet A first refrigerant passage is formed between the refrigerant outlets, and a second refrigerant passage is formed between the second refrigerant inlet and the second refrigerant outlet; the valve assembly is used to throttle the refrigerant in the first refrigerant passage; The agent sensor is used to detect the refrigerant in the second refrigerant channel; the main electric control board is respectively electrically connected with the valve assembly and the refrigerant sensor; the electronic expansion valve also includes: a housing assembly, including a main housing; a main housing It has a main control cavity; the main electric control board is arranged in the main control cavity; the refrigerant sensor is compressed on the shell assembly.
  • the refrigerant sensor, the main housing and the valve body are stacked and connected into one body along the stacking direction; wherein, one of the main housing and the refrigerant sensor is clamped on the valve body. Between the main housing and the other of the refrigerant sensor.
  • the electronic expansion valve further includes a sensor connector; the stacked refrigerant sensor, the main housing and the valve body are connected into one body through the sensor connector.
  • the main housing has a sensor hole, the sensor hole communicates with the main control cavity; the refrigerant sensor penetrates the sensor hole; wherein, a part of the refrigerant sensor is located in the main control cavity and is connected to the main electronic control board. Electrical connection; another part of the refrigerant sensor is located outside the main control chamber and is used to detect the refrigerant in the second refrigerant passage.
  • the part of the refrigerant sensor located in the main control cavity is pressed against the main housing.
  • the housing assembly further includes a sub-housing; the sub-housing is detachably connected to the main housing; the refrigerant sensor, the sub-housing and the valve body are stacked and connected along the stacking direction Integrated; wherein one of the sub-housing and the refrigerant sensor is clamped between the valve body and the other of the sub-housing and the refrigerant sensor.
  • the electronic expansion valve further includes a sensor connector; the stacked refrigerant sensor, the sub-housing and the valve body are connected as a whole through the sensor connector.
  • the auxiliary housing has an auxiliary control cavity and a sensor hole; the sensor hole communicates with the auxiliary control cavity; the refrigerant sensor penetrates the sensor hole; wherein a part of the refrigerant sensor is located in the auxiliary control cavity and is connected to the auxiliary control cavity.
  • the main electric control board is electrically connected; the other part of the refrigerant sensor is located outside the auxiliary control cavity and is used to detect the refrigerant in the second refrigerant passage.
  • the auxiliary housing further has an auxiliary connection opening; the auxiliary connection opening is in communication with the auxiliary control cavity; the main housing has a main connection opening; the main connection opening is in communication with the main control cavity; and the auxiliary connection opening is configured as It communicates with the main connection opening, so that the auxiliary control cavity is communicated with the main control cavity.
  • the thermal management component In order to achieve the purpose of thermal management components, including a heat exchanger, the heat exchanger has a first heat exchange channel and a second heat exchange channel; the first heat exchange channel and the second heat exchange channel are not connected to each other, the thermal management component also includes the above The electronic expansion valve; the electronic expansion valve is installed on the heat exchanger, wherein the electronic expansion valve is in communication with the first heat exchange channel.
  • the positive improvement effect of the present invention lies in that since the refrigerant sensor is compressed on the housing assembly, the refrigerant sensor has a high degree of stability after being installed on the electronic expansion valve, and is not easy to loosen.
  • the electronic expansion valve provided by the present invention has the advantage of stable installation of the refrigerant sensor.
  • the thermal management component provided by the present invention includes the electronic expansion valve.
  • Figure 1 is a schematic diagram of an automobile air conditioning system
  • FIGS. 2A to 2D are schematic diagrams of the electronic expansion valve in the first embodiment of the present invention.
  • Figure 3 is an exploded view of the electronic expansion valve in the first embodiment of the present invention.
  • Fig. 4 is a cross-sectional view in the direction of A-A in Fig. 2C, in which the dashed arrow shows the flow path of the refrigerant;
  • Figure 5 is a cross-sectional view in the direction of B-B in Figure 2D;
  • Figure 6 is a cross-sectional view in the direction of C-C in Figure 2C;
  • Figure 7 is a cross-sectional view in the direction D-D in Figure 2D;
  • FIGS 8A to 8B are schematic diagrams of the main housing in the first embodiment of the present invention.
  • FIGS. 9A to 9C are schematic diagrams of the valve body
  • Figure 9D is a sectional view of the valve body
  • 10A to 10D are schematic diagrams of the electronic expansion valve in the second embodiment of the present invention.
  • Figure 11 is an exploded view of the electronic expansion valve in the second embodiment of the present invention.
  • Figure 12 is a cross-sectional view in the direction of E-E in Figure 10C;
  • Figure 13 is a cross-sectional view in the direction of F-F in Figure 10D;
  • FIGS. 14A to 14B are schematic diagrams of the main housing in the second embodiment of the present invention.
  • 15A to 15B are schematic diagrams of the auxiliary housing in the second embodiment of the present invention.
  • 16A to 16D are schematic diagrams of the electronic expansion valve in the third embodiment of the present invention.
  • Figure 17 is an exploded view of the electronic expansion valve in the third embodiment of the present invention.
  • Figure 18 is a cross-sectional view in the direction of G-G in Figure 16C;
  • Figure 19 is a cross-sectional view in the direction of J-J in Figure 16D;
  • Figure 20 is a cross-sectional view in the direction of H-H in Figure 16C;
  • 21A to 21B are schematic diagrams of the main housing in the third embodiment of the present invention.
  • 22A to 22B are schematic diagrams of the auxiliary housing in the third embodiment of the present invention.
  • Figure 23 is a cross-sectional view of the electronic expansion valve, showing the connection relationship between the main housing, the sensor and the valve body, wherein the opening of the main housing faces away from the valve body;
  • Figure 24 is a cross-sectional view of the electronic expansion valve, showing the connection relationship between the main housing, the sensor and the valve body, wherein the opening of the main housing faces the valve body;
  • Figure 25 is a cross-sectional view of the sensor.
  • first and second features are directly connected, or may include an additional feature formed between the first and second features.
  • reference numerals and/or letters may be repeated in different examples in these contents. The repetition is for brevity and clarity, and does not indicate the relationship between the various embodiments and/or structures to be discussed.
  • first element when the first element is described in the manner of being connected or combined with the second element, the description includes the embodiment in which the first and second elements are directly connected or combined with each other, and also includes the use of one or more other intervening elements to add The first and second elements are indirectly connected or combined with each other.
  • FIGS. 1 to 25 are only examples, and they are not drawn according to the condition of equal proportions, and should not be used as a limitation to the protection scope of the present invention.
  • Fig. 1 shows an automobile air conditioning system 900 in an embodiment of the present invention.
  • the automobile air conditioning system 900 includes a compressor 90, a condenser 91, electronic expansion valves 92, 94, an evaporator 93, a heat exchanger 95, a pump 96, a battery module 97, a pipeline for refrigerant flow and a refrigerant flow ⁇ The pipeline. These pipelines connect various parts of the automobile air conditioning system 900.
  • the evaporator 93 and the electronic expansion valve 92 constitute a thermal management component.
  • the electronic expansion valve 92 is installed on the evaporator 93 and integrated with the evaporator 93.
  • the evaporator 93 has an evaporator passage 93a, and a refrigerant flows in the evaporator passage 93a.
  • the evaporator passage 93a communicates with the electronic expansion valve 92.
  • the heat exchanger 95 and the electronic expansion valve 94 constitute a thermal management component, and the electronic expansion valve 94 is installed on the heat exchanger 95 and integrated with the heat exchanger 95.
  • the heat exchanger 95 has a first heat exchange channel 95a and a second heat exchange channel 95b; the first heat exchange channel 95a and the second heat exchange channel 95b are not connected to each other.
  • the refrigerant flows in the first heat exchange passage 95a, and the refrigerant flows in the second heat exchange passage 95b.
  • the first heat exchange passage 95a is in communication with the electronic expansion valve 94
  • the second heat exchange passage 95b is in communication with the circuit where the pump 96 and the battery module 97 are arranged.
  • the heat generated by the battery module 97 is taken away by the coolant, and follows the coolant into the second heat exchange passage 95b of the heat exchanger 95.
  • the refrigerant is throttled by the electronic expansion valve 94 and then flows out of the electronic expansion valve 94, and enters the first heat exchange passage 95a in a low temperature and low pressure state.
  • the heat in the coolant in the second heat exchange passage 95b is absorbed by the refrigerant in the first heat exchange passage 95a, so that the automobile air conditioning system 900 can realize the cooling process of the battery module 97.
  • the refrigerant is throttled by the electronic expansion valve 92 and flows out of the electronic expansion valve 92, and enters the evaporator passage 93a in a low temperature and low pressure state.
  • the evaporator 93 allows the air flow to be blown from the outside of the evaporator passage 93a to absorb the heat in the air flow, thereby cooling the air flow.
  • the cooled air stream can be sent into the vehicle cabin to adjust the hot and humid environment in the cabin.
  • FIGs 2A to 2D and Figures 3, 4, 5, 6, 7, 8A, 8B show the first embodiment of the electronic expansion valve 92, 94 of the present invention.
  • the electronic expansion valves 92 and 94 include a valve body 1, a valve assembly 2, a refrigerant sensor 31, a main electric control board 4 and a housing assembly 5.
  • the valve body 1 has a block shape and has three groups of opposite sides in space.
  • the valve body 1 has a first refrigerant inlet 1a and a first refrigerant outlet 1b.
  • a first refrigerant penetrating through the valve body 1 is formed between the first refrigerant inlet 1a and the first refrigerant outlet 1b.
  • Channel 11 The first refrigerant inlet 1a and the first refrigerant outlet 1b are preferably arranged on opposite sides of the valve body 1.
  • first refrigerant inlet 1a and the first refrigerant outlet 1b may also be arranged on the same side of the valve body 1, or the first refrigerant inlet 1a and the first refrigerant outlet 1b may also be arranged On the adjacent two sides of the valve body 1.
  • the first refrigerant outlet 1b communicates with the inlet of the evaporator passage 93a or the inlet of the first heat exchange passage 95a.
  • the valve body 1 is preferably provided with a first installation cavity 15 on the side where the first refrigerant inlet 1a and the first refrigerant outlet 1b are not opened. .
  • the first installation cavity 15 extends from the outer surface of the valve body 1 to the inside of the valve body 1 and communicates with the first refrigerant passage 11.
  • the valve assembly 2 is inserted into the first installation cavity 15, and at least a part of the valve assembly 2 is located in the first refrigerant passage 11 to throttle the refrigerant in the first refrigerant passage 11.
  • the valve assembly 2 includes a coil assembly 21 and a valve core assembly 22.
  • One end of the valve core assembly 22 is inserted into the first installation cavity 15 of the valve body 1 and extends into the first refrigerant passage 11.
  • the part of the valve core assembly 22 inserted into the valve body 1 is fixed on the valve body 1.
  • the other end of the valve core assembly 22 is exposed outside the valve body 1.
  • the coil assembly 21 is arranged on the outside of the valve body 1 and sleeved on the valve core assembly 22.
  • the coil assembly 21 is electrically connected to the main electronic control board 4, and when energized, the coil assembly 21 can drive the spool assembly 22 to move, so that the spool assembly 22 can throttle the refrigerant in the first refrigerant passage 11 process.
  • the valve assembly 2 may also be an electromagnetically driven valve assembly.
  • the valve core assembly 22 includes a valve seat 221, a valve core 222, a connecting seat 224, a rotor assembly 223 and a cover body 225 assembled together along the axis of the valve assembly 2 (shown by the dashed line in FIG. 3 ).
  • the valve seat 221 has a valve hole 221 a, and a portion of the valve seat 221 having the valve hole 221 a is provided inside the valve body 1 and located in the first refrigerant passage 11.
  • the valve seat 221 is fixed on the valve body 1, and the connecting seat 224 can be welded to the valve body 1 and the valve seat 221 respectively.
  • the rotor assembly 223 and the cover 225 are connected to the connecting seat 224 respectively.
  • the rotor assembly 223 includes a permanent magnet, which can rotate around the axis of the valve assembly 2 under the action of the excitation magnetic field generated by the energized coil assembly 21.
  • the rotor assembly 223 also includes a transmission assembly that converts the rotation of the permanent magnet into a movement along the axis of the valve assembly 2.
  • the valve core 222 is slidably fitted in the valve seat 221.
  • the permanent magnet of the rotor assembly 223 is used to be driven by the energized coil assembly 21, and the valve core 222 is driven to move relative to the valve seat 221 along the axis of the valve assembly 2 through the transmission assembly, thereby adjusting the opening of the valve hole 221a.
  • the refrigerant in the first refrigerant passage 11 passes through the valve hole 221a with a smaller opening degree, the refrigerant is throttled.
  • the valve body 1 also has a second refrigerant inlet 1c and a second refrigerant outlet 1d.
  • a second refrigerant inlet 1c and a second refrigerant outlet 1d are formed between the second refrigerant inlet 1c and second refrigerant outlet 1d.
  • Two refrigerant passages 12, the second refrigerant passage 12 and the first refrigerant passage 11 are not connected to each other.
  • Such a design can make the valve body 1 form a part of the refrigerant outlet flow path of the evaporator 93 or the heat exchanger 95.
  • the second refrigerant inlet 1c communicates with the outlet of the evaporator passage 93a or the outlet of the second heat exchange passage 95b.
  • the second refrigerant inlet 1c and the second refrigerant outlet 1d are preferably provided on opposite sides of the valve body 1.
  • the first refrigerant inlet 1a and the second refrigerant outlet 1d are preferably arranged on the same side of the valve body 1
  • the first refrigerant outlet 1b and the second refrigerant inlet 1c are preferably arranged on the valve body 1.
  • the second refrigerant inlet 1c and the second refrigerant outlet 1d may also be arranged on the same side of the valve body 1, or the second refrigerant inlet 1c and the second refrigerant outlet 1d may also be arranged On the adjacent two sides of the valve body 1.
  • the valve body 1 preferably has a second installation cavity 16 on the side where the second refrigerant inlet 1c and the second refrigerant outlet 1d are not opened. .
  • the second installation cavity 16 extends from the outer surface of the valve body 1 to the inside of the valve body 1 and communicates with the second refrigerant passage 12.
  • the refrigerant sensor 31 is inserted into the second installation cavity 16, and at least a part of the refrigerant sensor 31 is located in the second refrigerant passage 12 to detect the refrigerant in the second refrigerant passage 12.
  • the refrigerant sensor 31 is preferably a temperature and pressure sensor, which integrates a temperature detection function and a pressure detection function. Structurally, the refrigerant sensor 31 has a temperature detection part 31a and a pressure detection part 31b arranged side by side. As shown in Figs. 4 and 25, the temperature detecting portion 31a and the pressure detecting portion 31b are provided back and forth in the flow direction of the refrigerant, and the temperature detecting portion 31a is preferably provided upstream of the pressure detecting portion 31b. The temperature detecting portion 31a and the pressure detecting portion 31b are preferably arranged in alignment with the center line of the second refrigerant passage 12. Such a design helps to reduce the length of the refrigerant sensor 31 in the direction in which the refrigerant sensor 31 is inserted into the valve body 1.
  • the refrigerant sensor 31 and the valve assembly 2 may be respectively arranged on different sides of the valve body 1, such as two adjacent sides of the valve body 1, in terms of the installation orientation.
  • the first installation cavity 15 and the second installation cavity 16 are respectively opened on different sides of the valve body 1.
  • the refrigerant sensor 31 and the valve assembly 2 may also be arranged on the same side of the valve body 1. Accordingly, the first mounting cavity 15 and the second mounting cavity 16 are opened on the same side of the valve body 1. .
  • the main electronic control board 4 is electrically connected to the valve assembly 2 and the refrigerant sensor 31, respectively.
  • the refrigerant sensor 31 detects the refrigerant in the second refrigerant passage 12 to generate a detection signal, such as a temperature signal and a pressure signal; the main electronic control board 4 can receive the detection signal.
  • the main electronic control board 4 is also configured to send a driving signal to the valve assembly 2 to drive the valve assembly 2 to move, so as to realize the throttling process of the refrigerant in the first refrigerant passage 11. More specifically, the main electronic control board 4 also has a microprocessor, which can process the detection signal generated by the refrigerant sensor 31 and generate the above-mentioned driving signal.
  • the electrical connection can be achieved through pins or flexible conductive parts, such as flexible flat cables.
  • the electrical connection includes a detachable electrical connection.
  • the electronic expansion valves 92 and 94 include a flexible conductive member 41; the flexible conductive member 41 is detachably electrically connected to the refrigerant sensor 31 and the main electric control board 4.
  • one end of the flexible conductive member 41 is configured to be snap-connected and electrically connected to the main electric control board 4, and the other end is welded to the refrigerant sensor 31.
  • the valve assembly 2 is electrically connected to the main electronic control board 4 through pins.
  • the main electric control board 4 and the refrigerant sensor 31 can be arranged on the same side of the valve body 1 in the installation orientation.
  • the main electric control board 4 and the refrigerant sensor 31 are arranged side by side and are electrically connected detachably through a flexible conductive member 41.
  • the main electronic control board 4 and the refrigerant sensor 31 arranged side by side help to make the structure of the electronic expansion valves 92 and 94 more compact.
  • the main electronic control board 4 and the refrigerant sensor 31 may also be arranged on different sides of the valve body 1.
  • the main electronic control board 4 and the refrigerant sensor 31 are respectively arranged adjacent to the valve body 1. side.
  • the main electronic control board 4 is housed in the housing assembly 5, and the refrigerant sensor 31 is connected to the housing assembly 5. More specifically, the refrigerant sensor 31 is Press tightly on the housing assembly 5. Such a design helps improve the stability of the installation of the refrigerant sensor 31 and makes the electronic expansion valves 92 and 94 compact.
  • the housing assembly 5 includes a main housing 51; the main housing 51 has a main control cavity 51a; and the main electronic control board 4 is disposed in the main control cavity 51a.
  • the valve assembly 2 and the main electronic control board 4 are respectively located on different sides of the valve body 1. This design enables the main control chamber 51a to have a larger extension space on the side of the valve body 1 where the main electronic control board 4 is provided, so that the main control chamber 51a can accommodate a larger-sized main electronic control board 4;
  • the large-sized main electronic control board 4 can integrate more electronic devices, which is very beneficial to realize the intelligent control of the electronic expansion valve.
  • valve assembly 2 and the main electronic control board 4 are respectively located on two adjacent sides of the valve body 1. This helps to improve the compactness of the electronic expansion valves 92, 94.
  • the valve assembly 2 and the main electronic control board 4 are respectively located on the adjacent two sides of the valve body 1 where there is no refrigerant inlet and outlet.
  • valve assembly 2 the main electronic control board 4 and the refrigerant sensor 31 may be respectively located on three different sides of the valve body 1 where the refrigerant inlet and outlet are not provided.
  • the electronic expansion valve 92, 94 has an installation position, and the installation position may be the orientation of the electronic expansion valve 92, 94 after being installed on the automobile.
  • the installation position is also the position that the electronic expansion valves 92 and 94 have when they are in working condition.
  • the valve assembly 2 is located on the upper side of the valve body 1 with reference to the vertical direction. This design enables the refrigerant entering the cover 225 of the valve assembly 2 during the operation of the electronic expansion valves 92 and 94 to flow out of the cover 225 under the action of gravity after the electronic expansion valves 92 and 94 stop working. This prevents the refrigerant from being stored inside the valve assembly 2.
  • the angle between the axis of the valve assembly 2 and the vertical direction should be less than 90°, preferably less than or equal to 75°.
  • the electronic expansion valve 92, 94 also includes valve assembly sensors 32, 33; the valve assembly sensors 32, 33 are electrically connected to the main electronic control board 4; the valve assembly sensors 32, 33 are used to detect Valve assembly 2.
  • the valve assembly sensors 32, 33 are arranged in the main control chamber 51a. As long as it is a sensor capable of detecting various parts of the valve assembly and generating a feedback signal, it belongs to the scope of the valve assembly sensors 32 and 33.
  • the valve assembly sensors 32 and 33 may be Hall sensors that detect changes in the magnetic field of the permanent magnet of the rotor assembly 223, or may be position sensors that detect the movement of the valve core 222 along the axis of the valve assembly 2.
  • the valve assembly sensors 32, 33 can detect abnormal working conditions of the valve assembly 2, such as out-of-step and locked-rotor.
  • the Hall sensor can sense the change in the magnetic field of the permanent magnet of the rotor assembly 223 and generate a feedback signal.
  • the feedback signal is transmitted to the microprocessor of the main electronic control board 4.
  • the refrigerant sensor 31, the main housing 51, and the valve body 1 are stacked and connected to form a single body in the direction of stacking; wherein, one of the main housing 51 and the refrigerant sensor 31 is sandwiched. It is tightly located between the valve body 1 and the other of the main housing 51 and the refrigerant sensor 31.
  • Such a design helps to reduce the assembly steps of the electronic expansion valves 92, 94, and makes the electronic expansion valves 92, 94 compact.
  • the stacked refrigerant sensor 31, the main housing 51 and the valve body 1 are connected into one body by a sensor connector 71.
  • the sensor connector 71 may be a screw.
  • the sensor connector 71 penetrates at least one of the main housing 51 and the refrigerant sensor 31 and is fixedly connected to the valve body 1.
  • the main housing 51 is sandwiched between the refrigerant sensor 31 and the valve body 1, and the sensor connector 71 penetrates the refrigerant sensor 31 and the main housing 51.
  • the part of the refrigerant sensor 31 located in the valve body 1 is threadedly connected to the valve body 1, and the part of the refrigerant sensor 31 located outside the valve body presses the main housing 51 on the valve body 1. .
  • the housing assembly 5 further includes a main cover 52; the main housing 51 has a main opening 51b, the main opening 51b communicates with the main control chamber 51a; the main opening 51b can face away from the valve body 1 direction, and allows the main electronic control board 4 to enter the main control chamber 51a; the main cover 52 is used to cover the main housing 51 to close the main opening 51b.
  • the main seal 81 is arranged along the circumference of the main opening 51b, and is clamped between the main cover 52 and the main housing 51 to seal the main opening 51b.
  • One of the main housing 51 and the main cover 52 may be provided with a groove for accommodating the main seal 81.
  • the main housing 51 has a sensor hole 51c, the sensor hole 51c communicates with the main control chamber 51a; the refrigerant sensor 31 penetrates the sensor hole 51c; wherein, a part of the refrigerant sensor 31 is located Inside the main control cavity 51a and electrically connected to the main electronic control board 4; the other part of the refrigerant sensor 31 is located outside the main control cavity 51a and is used to detect the refrigerant in the second refrigerant passage 12. The part of the refrigerant sensor 31 located in the main control chamber 51 a is pressed against the main housing 51.
  • the electronic expansion valve 92, 94 also includes a sensor seal 82, which is arranged along the circumference of the sensor hole 51c; the sensor seal 82 is clamped between the refrigerant sensor 31 and the main housing 51 to seal the sensor hole 51c.
  • the electronic expansion valves 92, 94 also include a valve assembly connector 72; the valve assembly connector 72 is set from the valve body 1 without the valve assembly One side of 2 is inserted into the valve body 1 and is in position-limiting fit with a part of the valve assembly 2 located in the valve body 1 so as to fix the valve assembly 2 on the valve body 1.
  • a valve assembly connector 72 is set from the valve body 1 without the valve assembly One side of 2 is inserted into the valve body 1 and is in position-limiting fit with a part of the valve assembly 2 located in the valve body 1 so as to fix the valve assembly 2 on the valve body 1.
  • valve assembly connector 72 is arranged to be inserted into the valve body 1 from the side of the valve body 1 where the main electronic control board 4 is arranged.
  • the valve assembly connector 72 may be a plug.
  • the main housing 51 has a drive cavity 51d and a valve assembly hole 51e, the valve assembly hole 51e communicates with the drive cavity 51d; the valve assembly 2 penetrates the valve assembly hole 51e; A part of the assembly 2 is located in the driving chamber 51d and is electrically connected to the main electronic control board 4; another part of the valve assembly 2 is located outside the main control chamber 51a and is used to throttle the refrigerant in the first refrigerant passage 11.
  • the coil assembly 21 is used as an insert to be fixed in the driving cavity 51d through an injection molding process.
  • the valve core assembly 22 is inserted into the driving cavity 51d through the valve assembly hole 51e, and is inserted in the middle of the coil assembly 21.
  • the coil assembly 21 is electrically connected to the main electronic control board 4 in the main control cavity 51a through a pin, wherein the pin penetrates the partition wall of the driving cavity 51d and the main control cavity 51a as an insert in the injection molding process.
  • the valve seat 221 and the valve core 222 are arranged outside the driving chamber 51d.
  • valve assembly seal 83 is arranged along the circumference of the valve assembly hole 51e; the valve assembly seal 83 is clamped between the valve assembly 2 and the main housing 51 to seal the valve assembly hole 51e.
  • the valve assembly seal 83 is pressed against the cover 225 of the valve assembly 2 by the main housing 51 along the radial direction of the valve assembly 2. More specifically, the valve assembly seal 83 is compressed at the joint between the cover body 225 and the connecting seat 224.
  • the main control cavity 51a has a first cavity portion 51a-1, a second cavity portion 51a-2, and an angular cavity portion 51a-3; the first cavity portion 51a-1 and the second cavity portion 51a-2 are respectively Located on different sides of the valve body 1; the corner cavity portion 51a-3 from the side of the valve body 1 where the first cavity portion 51a-1 is provided, bypasses a corner of the valve body 1, and extends to the valve body 1 where the second cavity portion 51a-1 is provided.
  • This design increases the volume of the main control chamber 51a, so that the main electronic control board 4 has a larger extension space.
  • a corner of the valve body 1 refers to the intersection of the outer surfaces of the two adjacent sides of the valve body 1.
  • valve assembly 2 is electrically connected to the part of the main electric control board 4 located in the corner cavity 51a-3. This design makes the length of the pins required to realize the electrical connection shorter.
  • the second cavity 51a-2 is located on the side of the valve body 1 where the valve assembly 2 is provided; the valve assembly sensors 32, 33 are arranged in the second cavity 51a-2.
  • the valve assembly sensors 32, 33 are electrically connected to the part of the main electric control board 4 located in the corner cavity 51a-3. More specifically, referring to FIG. 7, the valve assembly sensors 32, 33 are mounted on the connection circuit boards 401, 402 and are electrically connected to the connection circuit boards 401, 402, and the connection circuit boards 401, 402 are arranged in the main control chamber 51a and It is fixedly connected to the main housing 51, and the connecting circuit boards 401, 402 are electrically connected to the main electric control board 4 through pins.
  • the main housing 51 extends from one side of the valve body 1 around a corner of the valve body 1 to the other side of the valve body 1. More specifically, the main housing 51 extends from the side of the valve body 1 where the main electronic control board 4 is provided, bypassing a corner of the valve body 1 to the side of the valve body 1 where the valve assembly 2 is provided. This solution improves the integrity of the main housing 51 and facilitates the assembly and manufacture of the electronic expansion valves 92 and 94.
  • the electronic expansion valve 92, 94 also includes a housing connecting piece 73; the housing connecting piece 73 connects the main housing 51 and the valve body 1; wherein, one end of the housing connecting piece 73 is in the valve One side of the body 1 where the valve assembly 2 is provided is connected to the main housing 51, and the other end of the housing connection piece 73 is connected to the valve body 1 on the opposite side of the valve body 1 where the main electronic control board 4 is provided.
  • the arrangement of the housing connection member 73 improves the stability of the connection of the main housing 51 to the valve body 1.
  • the side of the valve body 1 where the refrigerant sensor 31 is provided has a first flat portion 13 and a first convex portion 14;
  • the direction opposite to the direction in which the sensor 31 is inserted into the valve body 1 protrudes from the first flat portion 13; the sensor 31 is configured to be inserted into the first protrusion 14.
  • the second installation cavity 16 is opened on the first protrusion 14.
  • This design allows the first protrusion 14 to have a sufficient thickness to fit with the connecting member of the fixed refrigerant sensor 31.
  • the first protrusion 14 is provided with a connecting hole 14 a for connecting the refrigerant sensor 31, and the connecting hole 14 a is used for inserting and mating with the connecting member for fixing the refrigerant sensor 31.
  • the side of the main housing 51 close to the valve body 1 has a second flat portion 511 and a second convex portion 512; wherein the second convex portion 512 protrudes in the same direction as the direction in which the sensor 31 is inserted into the valve body 1.
  • the second flat portion 511 On the second flat portion 511; the second flat portion 511 is disposed opposite to the first convex portion 14; the second convex portion 512 is disposed opposite to the first flat portion 13. This design helps increase the volume of the main control chamber 51a.
  • the main electric control board 4 can be fixed on the main housing 51.
  • the four corners of the main electronic control board 4 can be fixed to the main housing 51 by screws. This design helps to increase the stability of the installation of the main electronic control board 4 in the main control cavity 51a.
  • FIG. 8B shows a post hole 513 on the main housing 51 for fixing the main electronic control board 4.
  • the electronic expansion valve 92, 94 further includes a first valve body seal 801, a second valve body seal 802, and a third valve body seal 803.
  • the first valve body seal 801 is arranged in the second installation cavity 16 of the valve body 1 and is arranged around the refrigerant sensor 31; the first valve body seal 801 is pressed by the valve body 1 and the refrigerant sensor 31.
  • the second valve body seal 802 and the third valve body seal 803 are respectively arranged in the first installation cavity 15 and are arranged around the valve assembly 2; the second valve body seal 802 and the third valve body seal 803 are valved The body 1 and the valve assembly 2 are respectively compressed.
  • the second valve body seal 802 and the third valve body seal 803 are respectively arranged around the valve seat 221 of the valve assembly 2.
  • the valve hole 221 a of the valve seat 221 is located between the second valve body seal 802 and the third valve body seal 803 in the axial direction of the valve assembly 2. In this way, it can be ensured that all the refrigerant in the first refrigerant passage 11 can pass through the valve hole 221a.
  • FIGS 10A to 10D and Figures 11, 12, 13, 14A, 14B, 15A, 15B show a second embodiment of the electronic expansion valve 92, 94 of the present invention.
  • the parts of the second embodiment that are the same as those of the first embodiment are given the same reference numerals, and the parts of the technical solution of the second embodiment that are the same as those of the first embodiment will not be repeated.
  • the housing assembly 5 further includes a sub-housing 53; the sub-housing 53 has a drive cavity 53a and a valve assembly hole 53b; the valve assembly hole 53b and a drive cavity 53a is connected; the valve assembly 2 penetrates through the valve assembly hole 53b; among them, a part of the valve assembly 2 is located in the drive chamber 53a and is electrically connected to the main electronic control board 4; the other part of the valve assembly 2 is located outside the drive chamber 53a and is used to save
  • the refrigerant in the first refrigerant passage 11 flows; the sub-housing 53 and the main housing 51 are detachably connected.
  • This solution makes the electronic expansion valves 92, 94 have a higher degree of modularity, and makes the electronic expansion valves 92, 94 easy to disassemble.
  • the coil assembly 21 is used as an insert to be fixed in the driving cavity 53a through an injection molding process.
  • the valve core assembly 22 is inserted into the drive cavity 53a through the valve assembly hole 53b, and is inserted in the middle of the coil assembly 21.
  • the coil assembly 21 is electrically connected to the main electric control board 4 in the main control cavity 51a through the flexible conductive member 42.
  • the valve seat 221 and the valve core 222 are arranged outside the driving chamber 53a.
  • valve assembly seal 84 is arranged along the circumference of the valve assembly hole 53b; the valve assembly seal 84 is clamped between the valve assembly 2 and the sub-housing 53 to seal the valve assembly hole 53b.
  • the valve assembly seal 84 is pressed against the cover 225 of the valve assembly 2 by the sub-housing 53 along the radial direction of the valve assembly 2. More specifically, the valve assembly seal 84 is compressed at the joint between the cover body 225 and the connecting seat 224.
  • the auxiliary housing 53 also has an auxiliary control cavity 53c and an auxiliary connection opening 53d; the auxiliary connection opening 53d communicates with the auxiliary control cavity 53c; the main housing 51 has The main connection opening 51f; the main connection opening 51f communicates with the main control cavity 51a; the auxiliary connection opening 53d is arranged to communicate with the main connection opening 51f, so that the auxiliary control cavity 53c communicates with the main control cavity 51a.
  • the flexible conductive member 42 penetrates the main connection opening 51f and the auxiliary connection opening 53d to electrically connect the main electric control board 4 and the valve assembly 2 in a detachable manner.
  • the flexible conductive member 42 may be a flexible flat cable. One end of the flexible conductive member 42 is configured to be buckled and electrically connected to the main electric control board 4, and the other end is welded to the valve assembly 2.
  • the auxiliary control chamber 53c and the main control chamber 51a are respectively located on different sides of the valve body 1, such as adjacent two sides; wherein, the main control chamber 51a is located on the main electronic control board of the valve body 1. 4 side.
  • the auxiliary control chamber 53c is located on the side of the valve body 1 where the valve assembly 2 is provided.
  • the housing assembly 5 also includes a secondary cover 54; the secondary housing 53 has a secondary opening 53e, which communicates with the secondary control cavity 53c; the secondary cover 54 is used to cover the secondary housing 53 to close the secondary opening 53e.
  • the sub-cover 54 and the sub-housing 53 can be welded.
  • the electronic expansion valve 92, 94 also includes a connection seal 85; the connection seal 85 is arranged along the circumference of the auxiliary connection opening 53d and the main connection opening 51f; the connection seal 85 is clamped between the main housing 51 and the auxiliary housing 53 Between, to seal the auxiliary connection opening 53d and the main connection opening 51f.
  • the valve assembly sensors 32, 33 are arranged in the auxiliary control chamber 53c.
  • the flexible conductive member 43 penetrates the main connection opening 51f and the auxiliary connection opening 53d to electrically connect the main electric control board 4 and the valve assembly sensors 32, 33 detachably. More specifically, referring to FIG. 13, the valve assembly sensors 32, 33 are mounted on the connection circuit boards 404, 405 and are electrically connected to the connection circuit boards 404, 405, the connection circuit boards 404, 405 are disposed in the auxiliary control chamber 53c and It is fixedly connected to the main housing 51, and the connecting circuit boards 404 and 405 are electrically connected to the main electric control board 4 through the flexible conductive member 43.
  • the flexible conductive member 43 may be a flexible flat cable. One end of the flexible conductive member 43 is configured to be buckled and electrically connected to the main electric control board 4, and the other end is welded to the connecting circuit boards 404 and 405.
  • the electronic expansion valve 92, 94 also includes a housing connecting piece 74; the housing connecting piece 74 connects the auxiliary housing 53 and the valve body 1; wherein, one end of the housing connecting piece 74 is in the valve body 1.
  • the side where the valve assembly 2 is provided is connected to the auxiliary housing 53, and the other end of the housing connector 74 is connected to the valve body 1 on the side opposite to the side where the main electronic control board 4 is provided.
  • This solution can provide the stability of the connection of the sub-housing 53 on the valve body 1.
  • the electronic expansion valves 92 and 94 further include a housing assembly connecting piece 75; the auxiliary housing 53 and the main housing 51 are detachably connected through the housing assembly connecting piece 75.
  • the housing assembly connecting piece 75 may be a screw.
  • the main housing 51 has an interface part 510.
  • the interface part 510 realizes electrical connection with the main electronic control board 4 by connecting the circuit board 403.
  • the interface part 510 is used to connect to the outside world.
  • FIGS 16A to 16D and Figures 17, 18, 19, 20, 21A, 21B, 22A, 22B show a third embodiment of the electronic expansion valve 92, 94 of the present invention.
  • the parts of the third embodiment that are the same as those of the first embodiment use the same reference numerals, and the parts of the technical solution of the third embodiment that are the same as those of the first embodiment will not be repeated.
  • the housing assembly 5 further includes a secondary housing 55; the secondary housing 55 has a secondary control cavity 55a and a sensor hole 55b; the sensor hole 55b communicates with the secondary control cavity 55a
  • the refrigerant sensor 31 penetrates the sensor hole 55b; among them, a part of the refrigerant sensor 31 is located in the auxiliary control chamber 55a and is electrically connected to the main electronic control board 4; another part of the refrigerant sensor 31 is located outside the auxiliary control chamber 55a and is used To detect the refrigerant in the second refrigerant passage 12; the sub-housing 55 and the main housing 51 are detachably connected.
  • This solution makes the electronic expansion valves 92, 94 have a higher degree of modularity, and makes the electronic expansion valves 92, 94 easy to disassemble.
  • the part of the refrigerant sensor 31 located in the sub-control chamber 55 a is pressed against the sub-housing 55.
  • the secondary housing 55 also has a secondary connection opening 55c; the secondary connection opening 55c communicates with the secondary control chamber 55a; the main housing 51 has a main connection opening 51g; the main connection opening 51g It communicates with the main control chamber 51a; the auxiliary connection opening 55c is arranged to communicate with the main connection opening 51g, so that the auxiliary control chamber 55a communicates with the main control chamber 51a.
  • the flexible conductive member 41 penetrates the main connection opening 51g and the auxiliary connection opening 55c to electrically connect the main electric control board 4 and the refrigerant sensor 31 detachably.
  • the flexible conductive member 41 may be a flexible flat cable. One end of the flexible conductive member 41 is configured to be buckled and electrically connected to the main electric control board 4, and the other end is welded to the refrigerant sensor 31.
  • the auxiliary control chamber 55 a and the main control chamber 51 a are both located on the side of the valve body 1 where the main electronic control board 4 is provided.
  • the auxiliary control chamber 55a and the main control chamber 51a are arranged side by side.
  • the housing assembly 5 also includes a secondary cover 56; the secondary housing 55 has a secondary opening 55d, and the secondary opening 55d communicates with the secondary control chamber 55a; the secondary cover 56 is used to cover the secondary housing 55 ⁇ , to close the secondary opening 55d.
  • the auxiliary cover 56 may be welded to the auxiliary housing 55.
  • the main cover 52 may be welded to the main housing 51. Both the secondary opening 55d and the main opening 51b are opened in a direction away from the valve body 1.
  • the electronic expansion valve 92, 94 also includes a connection seal 86; the connection seal 86 is arranged along the circumference of the auxiliary connection opening 55c and the main connection opening 51g; the connection seal 86 is clamped in the main housing Between the body 51 and the sub-housing 55 to seal the sub-connection opening 55c and the main connection opening 51g.
  • the refrigerant sensor 31, the sub-housing 55, and the valve body 1 are stacked, and are connected into one body in the direction of stacking; wherein, one of the sub-housing 55 and the refrigerant sensor 31 is clamped in the valve body. Between the body 1 and the other of the sub-housing 55 and the refrigerant sensor 31.
  • Such a design helps reduce the assembly steps of the electronic expansion valves 92, 94, and makes the electronic expansion valves 92, 94 compact.
  • the electronic expansion valves 92 and 94 further include a sensor connector 76; the refrigerant sensor 31, the sub-housing 55 and the valve body 1 stacked in layers are connected together by the sensor connector 76.
  • the sensor connector 76 may be a screw.
  • the sensor connector 76 penetrates at least one of the sub-housing 55 and the refrigerant sensor 31 and is fixedly connected to the valve body 1.
  • the sub-housing 55 is sandwiched between the refrigerant sensor 31 and the valve body 1, and the sensor connector 76 penetrates the refrigerant sensor 31 and the sub-housing 55.
  • the part of the refrigerant sensor 31 located in the valve body 1 is threadedly connected to the valve body 1, and the part of the refrigerant sensor 31 located outside the valve body presses the sub-housing 55 on the valve body 1. .
  • the electronic expansion valves 92, 94 also include a sensor seal 87; the sensor seal 87 is arranged along the circumference of the sensor hole 55b; the sensor seal 87 is clamped between the sub-housing 55 and the valve body 1. Between to seal the sensor hole 55b.
  • the electronic expansion valves 92 and 94 also include a housing assembly connecting piece 77; the auxiliary housing 55 and the main housing 51 are detachably connected through the housing assembly connecting piece 77.
  • the housing assembly connecting piece 77 may be a screw.
  • the electronic expansion valve includes: a valve body 1, the valve body 1 has a first refrigerant inlet 1a and a first refrigerant inlet 1a.
  • the refrigerant outlet 1b wherein a first refrigerant passage 11 is formed between the first refrigerant inlet 1a and the first refrigerant outlet 1b; the valve assembly 2 is used to throttle the refrigerant in the first refrigerant passage 11; electronics
  • the expansion valves 92, 94 also include: a valve assembly connecting piece 72; the valve assembly connecting piece 72 is arranged to be inserted into the valve body 1 from the side of the valve body 1 where the valve assembly 2 is not arranged, and is connected to the valve assembly 2 located in the valve body 1. A part of the inner part is limited in position, so that the valve assembly 2 is fixed on the valve body 1. Such a solution prevents the valve assembly 2 from interfering with the valve assembly connector 72 during the process of fixing the valve assembly 2 on the valve body 1, and the fixing method is relatively simple.
  • the valve assembly connector 72 is provided so as to be inserted into the valve body 1 from an adjacent side of the valve body 1 on which the valve assembly 2 is provided.
  • the valve body 1 has a first installation cavity 15 and a limiting hole 1e; the first installation cavity 15 is opened on one side of the valve body 1, and the limiting hole 1e is opened on the other side of the valve body 1; wherein, the first installation cavity 15
  • the valve assembly 2 is allowed to be inserted, and the limit hole 1e allows the valve assembly connector 72 to be inserted; the limit hole 1e communicates with the first mounting cavity 15 inside the valve body 1, so that the valve assembly connector 72 is inserted into the limit hole 1e It can be located in the first installation cavity 15 so as to be in position-limiting cooperation with the part of the valve assembly 2 located in the first installation cavity 15.
  • the valve assembly 2 has a concave portion 221 b for restricting and cooperating with the valve assembly connector 72.
  • valve assembly connector 72 is clamped by the inner wall of the limiting hole 1e and the recess 221b.
  • the number of the valve assembly connecting pieces 72 is two, which are respectively engaged with the two sides of the valve assembly 2 in a limit position.
  • valve seat 221 of the valve assembly 2 is in position-limiting fit with the valve assembly connector 72.
  • the two valve assembly connecting pieces 72 are symmetrically arranged with respect to the valve assembly 2.
  • an electronic expansion valve including: a valve body 1, the valve body 1 has a first refrigerant inlet 1a and The first refrigerant outlet 1b, wherein a first refrigerant passage 11 is formed between the first refrigerant inlet 1a and the first refrigerant outlet 1b; the valve assembly 2 is used to throttle the refrigerant in the first refrigerant passage 11
  • the main electronic control board 4 is electrically connected to the valve assembly 2;
  • the electronic expansion valve 92, 94 also includes: valve assembly sensors 32, 33; the valve assembly sensors 32, 33 are electrically connected to the main electronic control board 4; the valve assembly sensor 32, 33 is used to detect the valve assembly 2; the valve assembly 2 and the main electronic control board 4 are respectively located on different sides of the valve body 1.
  • the valve assembly sensors 32, 33 can be, but are not limited to, Hall sensors
  • the electronic expansion valves 92, 94 also include a housing assembly 5, which includes a main housing 51; the main housing 51 has a main control chamber 51a; the main electronic control board 4 is arranged in the main control chamber 51a; the valve assembly sensor 32 , 33 is provided in the main control chamber 51a.
  • the valve assembly sensor 32 is arranged at an end of the valve assembly 2 away from the valve body 1 along the axis of the valve assembly 2.
  • the valve assembly sensor 32 is an angle-type Hall sensor.
  • the valve assembly sensor 33 is provided on the outer side in the radial direction of the valve assembly 2.
  • the valve assembly sensor 32 is a switch-type Hall sensor.
  • the main control cavity 51a has a first cavity portion 51a-1, a second cavity portion 51a-2, and an angular cavity portion 51a-3; the first cavity portion 51a-1 and the second cavity portion 51a-2 are respectively located in different parts of the valve body 1.
  • One side wherein, a part of the main electronic control board 4 is provided in the first cavity portion 51a-1, and the other part is provided in the corner cavity portion 51a-3.
  • valve assembly sensors 32, 33 are arranged in the second cavity 51a-2, and the valve assembly sensors 32, 33 are electrically connected to the part of the main electronic control board 4 located in the corner cavity 51a-3.
  • the second cavity portion 51 a-2 is located on the side of the valve body 1 where the valve assembly 2 is provided, and the first cavity portion 51 a-1 is located on the side of the valve body 1 where the main electronic control board 4 is provided.
  • the electronic expansion valve 92, 94 also includes a housing assembly 5, the housing assembly 5 includes a main housing 51 and an auxiliary housing 53; the auxiliary housing 53 is detachably connected to the main housing 51; the main housing 51 has a main control chamber 51a; the main electronic control board 4 is arranged in the main control chamber 51a; the auxiliary housing 53 has an auxiliary control chamber 53c, and the valve assembly sensors 32, 33 are arranged in the auxiliary control chamber 53c.
  • the auxiliary housing 53 also has an auxiliary connection opening 53d; the auxiliary connection opening 53d is in communication with the auxiliary control cavity 53c; the main housing 51 has a main connection opening 51f; the main connection opening 51f is in communication with the main control cavity 51a; the auxiliary connection opening 53d is configured as Communicates with the main connection opening 51f, so that the auxiliary control chamber 53c communicates with the main control chamber 51a; the flexible conductive member 43 penetrates the main connection opening 51f and the auxiliary connection opening 53d to connect the main electronic control board 4 and the valve assembly sensors 32, 33 Removable electrical connection.
  • the auxiliary control chamber 53c is located on the side of the valve body 1 where the valve assembly 2 is provided.
  • an electronic expansion valve including: a valve body 1, the valve body 1 has a first refrigeration A refrigerant inlet 1a, a first refrigerant outlet 1b, a second refrigerant inlet 1c, and a second refrigerant outlet 1d, wherein a first refrigerant passage 11 is formed between the first refrigerant inlet 1a and the first refrigerant outlet 1b, A second refrigerant passage 12 is formed between the second refrigerant inlet 1c and the second refrigerant outlet 1d; the valve assembly 2 is used to throttle the refrigerant in the first refrigerant passage 11; the refrigerant sensor 31 is used to detect The refrigerant in the second refrigerant passage 12; the main electric control board 4 is electrically connected to the valve assembly 2 and the refrigerant sensor 31; the electronic expansion valves
  • the refrigerant sensor 31, the main housing 51, and the valve body 1 are stacked and connected into one body in the direction of stacking; wherein, one of the main housing 51 and the refrigerant sensor 31 is clamped between the valve body 1 and the main housing. Between the body 51 and the other of the refrigerant sensors 31.
  • the electronic expansion valves 92 and 94 also include a sensor connector 71; the stacked refrigerant sensor 31, the main housing 51 and the valve body 1 are connected as a whole through the sensor connector 71.
  • the part of the refrigerant sensor 31 located in the main control chamber 51 a is pressed against the main housing 51.
  • the housing assembly 5 also includes a sub-housing 55; the sub-housing 55 is detachably connected with the main housing 51; the refrigerant sensor 31 is pressed on the sub-housing 55.
  • the refrigerant sensor 31, the sub-housing 55, and the valve body 1 are stacked and connected into one body in the direction of stacking; wherein, one of the sub-housing 55 and the refrigerant sensor 31 is clamped between the valve body 1 and the sub-housing. Between the body 55 and the other of the refrigerant sensors 31.
  • the electronic expansion valves 92 and 94 also include a sensor connector 76; the stacked refrigerant sensor 31, the sub-housing 55 and the valve body 1 are connected as a whole through the sensor connector 76.
  • the auxiliary housing 55 has an auxiliary control cavity 55a and a sensor hole 55b; the sensor hole 55b is in communication with the auxiliary control cavity 55a; the refrigerant sensor 31 penetrates the sensor hole 55b; wherein, a part of the refrigerant sensor 31 is located in the auxiliary control cavity 55a and is connected to The main electric control board 4 is electrically connected; the other part of the refrigerant sensor 31 is located outside the auxiliary control cavity 55a and is used to detect the refrigerant in the second refrigerant passage 12.
  • the part of the refrigerant sensor 31 located in the sub-control chamber 55 a is pressed against the sub-housing 55.
  • the pin of the refrigerant sensor 31 penetrates the sensor hole 51 c and extends into the main control cavity 51 a to be plugged into the main electric control board 4.
  • the part of the refrigerant sensor 31 outside the main control chamber 51 a is clamped between the main housing 51 and the valve body 1.
  • the main housing 51 has a main opening 51b provided away from the valve body 1.
  • the main circuit board 4 is inserted into the main control cavity 51a through the main opening 51b.
  • the main housing 51 has a main opening 51b facing the valve body 1, and the main circuit board 4 is disposed between the main housing 51 and the valve body 1, and is located in the main control chamber 51a.
  • the refrigerant sensor 31 is clamped between the main housing 51 and the valve body 1.
  • the main circuit board 4 is loaded into the main housing 51 through the opening.
  • the manufacturing method of the electronic expansion valve includes a step of pressing the refrigerant sensor 31 on the main housing 51 or the sub housing 55.
  • the manufacturing method of the electronic expansion valve includes first stacking the refrigerant sensor 31, the main housing 51, and the valve body 1, and then connecting the refrigerant sensor 31, the main housing 51, and the valve body 1 into one body in the stacking direction. A step of.
  • the manufacturing method of the electronic expansion valve includes first stacking the refrigerant sensor 31, the sub-housing 55, and the valve body 1, and then connecting the refrigerant sensor 31, the sub-housing 55, and the valve body 1 into one body in the stacking direction. A step of.
  • the manufacturing method of the electronic expansion valve includes a step of connecting the refrigerant sensor 31, the main housing 51, and the valve body 1 into one body in the stacking direction using the sensor connector 71.
  • the manufacturing method of the electronic expansion valve includes a step of connecting the refrigerant sensor 31, the sub-housing 55, and the valve body 1 into one body in the stacking direction using the sensor connector 76.

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  • General Engineering & Computer Science (AREA)
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Abstract

本发明涉及一种电子膨胀阀和热管理组件。在本发明中，由于制冷剂传感器被压紧在壳体组件上，因此制冷剂传感器在安装电子膨胀阀上后具有较高的稳定度，不易松动。本发明提供的电子膨胀阀，其具有制冷剂传感器安装稳定的优点。本发明提供的热管理组件，其包括该电子膨胀阀。

Description

一种电子膨胀阀和热管理组件 技术领域
本发明涉及一种电子膨胀阀和热管理组件。
背景技术
传统的空调系统包括四大件，即压缩机、蒸发器、冷凝器和节流装置。根据空调系统的不同需求，节流装置可以包括膨胀阀和毛细管。膨胀阀根据驱动原理可以分为热力膨胀阀和电子膨胀阀。电子膨胀阀根据驱动方式不同可以分为电磁驱动的电子膨胀阀和电机驱动的电子膨胀阀。
汽车空调系统包括上述的四大件，在节流装置方面，汽车空调系统通常使用膨胀阀作为节流装置。中国专利申请CN101551174A公开了一种汽车空调系统，其使用热力膨胀阀作为节流装置。在其他现有技术中，电子膨胀阀也作为节流装置使用在汽车空调系统中。
随着汽车工业朝着电动化趋势发展，采用动力电池作为驱动源的汽车也越来越普及。动力电池在充放电的过程中会产生热量，导致电池的温度升高。根据中国专利申请CN101551174A所记载的技术方案可知，保持电池温度的稳定可通过在汽车空调系统中设置用于电池冷却的制冷剂支路来实现。该制冷剂支路上可以设置电子膨胀阀，以实现制冷剂的节流过程。
现有技术中的电子膨胀阀包括阀体、阀组件、传感器和电控板。现有技术中的电子膨胀阀的传感器安装的稳定性欠佳。
发明内容
本发明的目的在于提供一种电子膨胀阀，其具有制冷剂传感器安装稳定的优点。
本发明的目的还在于提供一种热管理组件，其包括上述电子膨胀阀。
为实现目的的电子膨胀阀，包括：阀体，阀体具有第一制冷剂入口、第一制冷剂出口、第二制冷剂入口和第二制冷剂出口，其中，第一制冷剂入口和第一制冷剂出口之间形成第一制冷剂通道，第二制冷剂入口和第二制冷剂出口之间形成第二制冷剂通道；阀组件，用于节流第一制冷剂通道内的制冷剂；制冷剂传感器，用于检测第二制冷剂通道内的制冷剂；主电控板，分别 与阀组件和制冷剂传感器电连接；电子膨胀阀还包括：壳体组件，包括主壳体；主壳体具有主控制腔；主电控板设置在主控制腔内；制冷剂传感器被压紧在壳体组件上。
在本发明的一个实施例中，制冷剂传感器、主壳体和阀体层叠设置，并且沿层叠的方向被连接成一体；其中，主壳体和制冷剂传感器中的一个被夹紧在阀体与主壳体和制冷剂传感器中的另一个之间。
在本发明的一个实施例中，电子膨胀阀还包括传感器连接件；层叠设置的制冷剂传感器、主壳体和阀体通过传感器连接件连接成一体。
在本发明的一个实施例中，主壳体具有传感器孔，传感器孔与主控制腔连通；制冷剂传感器贯穿传感器孔；其中，制冷剂传感器的一部分位于主控制腔内，并且与主电控板电连接；制冷剂传感器的另一部分位于主控制腔外，并用于检测第二制冷剂通道内的制冷剂。
在本发明的一个实施例中，制冷剂传感器的位于主控制腔内的部分被压紧在主壳体上。
在本发明的一个实施例中，壳体组件还包括副壳体；副壳体与主壳体可拆卸地连接；制冷剂传感器、副壳体和阀体层叠设置，并且沿层叠的方向被连接成一体；其中，副壳体和制冷剂传感器中的一个被夹紧在阀体与副壳体和制冷剂传感器中的另一个之间。
在本发明的一个实施例中，电子膨胀阀还包括传感器连接件；层叠设置的制冷剂传感器、副壳体和阀体通过传感器连接件连接成一体。
在本发明的一个实施例中，副壳体具有副控制腔和传感器孔；传感器孔与副控制腔连通；制冷剂传感器贯穿传感器孔；其中，制冷剂传感器的一部分位于副控制腔内，并且与主电控板电连接；制冷剂传感器的另一部分位于副控制腔外，并用于检测第二制冷剂通道内的制冷剂。
在本发明的一个实施例中，副壳体还具有副连接开口；副连接开口与副控制腔连通；主壳体具有主连接开口；主连接开口与主控制腔连通；副连接开口被设置成与主连接开口连通，从而使副控制腔与主控制腔连通。
为实现目的的热管理组件，包括换热器，换热器具有第一换热通道和第二换热通道；第一换热通道与第二换热通道互不连通，热管理组件还包括如上的电子膨胀阀；电子膨胀阀安装在换热器上，其中，电子膨胀阀与第一换热通道连通。
本发明的积极进步效果在于：由于制冷剂传感器被压紧在壳体组件上，因此制冷剂传感器在安装电子膨胀阀上后具有较高的稳定度，不易松动。本发明提供的电子膨胀阀，其具有制冷剂传感器安装稳定的优点。本发明提供的热管理组件，其包括该电子膨胀阀。
附图说明
本发明的上述的以及其他的特征、性质和优势将通过下面结合附图和实施例的描述而变得更加明显，其中：
图1为汽车空调系统的示意图；
图2A至2D为本发明的第一个实施例中的电子膨胀阀的示意图；
图3为本发明的第一个实施例中的电子膨胀阀的爆炸图；
图4为图2C中A-A方向的剖视图，其中虚线箭头显示了制冷剂的流动路径；
图5为图2D中B-B方向的剖视图；
图6为图2C中C-C方向的剖视图；
图7为图2D中D-D方向的剖视图；
图8A至8B为本发明的第一个实施例中主壳体的示意图；
图9A至9C为阀体的示意图；
图9D为阀体的剖视图；
图10A至10D为本发明的第二个实施例中的电子膨胀阀的示意图；
图11为本发明的第二个实施例中的电子膨胀阀的爆炸图；
图12为图10C中E-E方向的剖视图；
图13为图10D中F-F方向的剖视图；
图14A至14B为本发明的第二个实施例中主壳体的示意图；
图15A至15B为本发明的第二个实施例中副壳体的示意图；
图16A至16D为本发明的第三个实施例中的电子膨胀阀的示意图；
图17为本发明的第三个实施例中的电子膨胀阀的爆炸图；
图18为图16C中G-G方向的剖视图；
图19为图16D中J-J方向的剖视图；
图20为图16C中H-H方向的剖视图；
图21A至21B为本发明的第三个实施例中主壳体的示意图；
图22A至22B为本发明的第三个实施例中副壳体的示意图；
图23为电子膨胀阀的剖视图，显示了主壳体、传感器和阀体的连接关系，其中主壳体的开口背向阀体；
图24为电子膨胀阀的剖视图，显示了主壳体、传感器和阀体的连接关系，其中主壳体的开口朝向阀体；
图25为传感器的剖视图。
具体实施方式
下述公开了多种不同的实施的主题技术方案的实施方式或者实施例。为简化公开内容，下面描述了各元件和排列的具体实例，当然，这些仅仅为例子而已，并非是对本发明的保护范围进行限制。例如在说明书中随后记载的第一特征在第二特征分布，可以包括第一和第二特征通过直接联系的方式分布的实施方式，也可包括在第一和第二特征之间形成附加特征的实施方式，从而第一和第二特征之间可以不直接联系。另外，这些内容中可能会在不同的例子中重复附图标记和/或字母。该重复是为了简要和清楚，其本身不表示要讨论的各实施方式和/或结构间的关系。进一步地，当第一元件是用与第二元件相连或结合的方式描述的，该说明包括第一和第二元件直接相连或彼此结合的实施方式，也包括采用一个或多个其他介入元件加入使第一和第二元件间接地相连或彼此结合。
需要注意的是，图1至图25均仅作为示例，其并非是按照等比例的条件绘制的，并且不应该以此作为对本发明实际要求的保护范围构成限制。
图1示出了本发明一个实施例中的汽车空调系统900。汽车空调系统900包括压缩机90，冷凝器91，电子膨胀阀92、94，蒸发器93，换热器95，泵96，电池模块97，用于制冷剂流动的管路以及用于冷却剂流动的管路。这些管路将汽车空调系统900的各个部分连通。
蒸发器93与电子膨胀阀92组成热管理组件。电子膨胀阀92安装在蒸发器93上，并与蒸发器93成为一体。蒸发器93具有蒸发器通道93a，蒸发器通道93a中流动有制冷剂。蒸发器通道93a与电子膨胀阀92连通。
换热器95与电子膨胀阀94组成热管理组件，电子膨胀阀94安装在换热器95上，并与换热器95成为一体。换热器95具有第一换热通道95a和第二换热通道95b；第一换热通道95a与第二换热通道95b互不连通。第一 换热通道95a中流动有制冷剂，第二换热通道95b中流动有冷却剂。第一换热通道95a与电子膨胀阀94连通，第二换热通道95b与设置泵96和电池模块97的回路连通。
在汽车空调系统900的工作过程中，电池模块97产生的热量被冷却剂带走，并跟随冷却剂进入换热器95的第二换热通道95b。制冷剂被电子膨胀阀94节流后从电子膨胀阀94中流出，并以低温低压的状态进入第一换热通道95a。在换热器95中，第二换热通道95b内的冷却剂中的热量被第一换热通道95a中的制冷剂所吸收，从而使得汽车空调系统900能够实现对电池模块97的冷却过程。
制冷剂被电子膨胀阀92节流后从电子膨胀阀92中流出，并以低温低压的状态进入蒸发器通道93a。蒸发器93允许空气流从蒸发器通道93a的外侧吹过，以吸收该空气流中的热量，从而对该空气流进行冷却。被冷却的空气流可被送入车辆座舱，以对座舱内的热湿环境进行调节。
图2A至图2D以及图3、4、5、6、7、8A、8B示出了本发明中的电子膨胀阀92，94的第一个实施例。在这个实施例中，电子膨胀阀92，94包括阀体1，阀组件2，制冷剂传感器31，主电控板4和壳体组件5。
参考图2A至图2D、图4以及图9A至9D，阀体1的形状为块状，在空间上具有三组各自相对的两侧。在内部构造上，阀体1具有第一制冷剂入口1a和第一制冷剂出口1b，其中，第一制冷剂入口1a和第一制冷剂出口1b之间形成贯穿阀体1的第一制冷剂通道11。第一制冷剂入口1a和第一制冷剂出口1b优选为设置在阀体1的相对的两侧。在未图示的实施例中，第一制冷剂入口1a和第一制冷剂出口1b还可以设置在阀体1的同一侧，或者第一制冷剂入口1a和第一制冷剂出口1b还可以设置在阀体1的相邻两侧。第一制冷剂出口1b与蒸发器通道93a的入口或者第一换热通道95a的入口连通。
为了使阀组件2能够对第一制冷剂通道11内的制冷剂进行节流，阀体1优选在没有开设第一制冷剂入口1a和第一制冷剂出口1b的一侧开设第一安装腔15。第一安装腔15从阀体1的外表面向阀体1的内部延伸，并且与第一制冷剂通道11连通。阀组件2插入第一安装腔15，并且至少一部分的阀组件2位于第一制冷剂通道11中，以对第一制冷剂通道11内的制冷剂进行节流。
如图3、4、5所示，阀组件2包括线圈组件21和阀芯组件22。阀芯组件22的一端插入阀体1的第一安装腔15，并且伸入第一制冷剂通道11。阀芯组件22的插入阀体1的部分被固定在阀体1上。阀芯组件22的另一端露在阀体1的外侧。线圈组件21设置在阀体1的外侧，并且套设在阀芯组件22上。线圈组件21与主电控板4电连接，在通电的情况下，线圈组件21能够驱动阀芯组件22运动，以使阀芯组件22实现对第一制冷剂通道11内的制冷剂的节流过程。在未图示的实施例中，阀组件2还可以为电磁驱动式的阀组件。
阀芯组件22包括沿阀组件2的轴线(如图3中的虚线所示)装配在一起的阀座221，阀芯222，连接座224，转子组件223和罩体225。阀座221具有阀孔221a，阀座221的具有阀孔221a的部分设置在阀体1的内部并且位于第一制冷剂通道11中。阀座221固定在阀体1上，连接座224可以与阀体1和阀座221分别焊接。转子组件223和罩体225分别和连接座224连接。转子组件223包括永磁体，永磁体能够在通电的线圈组件21所产生的激励磁场的作用下围绕阀组件2的轴线转动。转子组件223还包括将永磁体的转动转化成沿阀组件2的轴线移动的传动组件。
阀芯222可滑动地装配在阀座221中。转子组件223的永磁体用于被通电的线圈组件21驱动，并且通过传动组件带动阀芯222相对于阀座221沿阀组件2的轴线运动，从而调节阀孔221a的开度。当第一制冷剂通道11内的制冷剂通过开度较小的阀孔221a时，制冷剂被节流。
为了提高热管理组件的集成度，阀体1还具有第二制冷剂入口1c和第二制冷剂出口1d，第二制冷剂入口1c和第二制冷剂出口1d之间形成贯穿阀体1的第二制冷剂通道12，第二制冷剂通道12与第一制冷剂通道11互不连通。这样的设计可以使得阀体1形成蒸发器93或者换热器95的制冷剂出口流路的一部分。在这个实施例中，第二制冷剂入口1c与蒸发器通道93a的出口或者第二换热通道95b的出口连通。
第二制冷剂入口1c和第二制冷剂出口1d优选为设置在阀体1的相对的两侧。在更具体的实施方式中，第一制冷剂入口1a和第二制冷剂出口1d优选为设置在阀体1的同侧，第一制冷剂出口1b和第二制冷剂入口1c优选为设置在阀体1的同侧。在未图示的实施例中，第二制冷剂入口1c和第二制冷剂出口1d还可以设置在阀体1的同一侧，或者第二制冷剂入口1c和第二 制冷剂出口1d还可以设置在阀体1的相邻两侧。
为了使制冷剂传感器31能够对第二制冷剂通道12内的制冷剂进行检测，阀体1优选在没有开设第二制冷剂入口1c和第二制冷剂出口1d的一侧开设第二安装腔16。第二安装腔16从阀体1的外表面向阀体1的内部延伸，并且与第二制冷剂通道12连通。制冷剂传感器31插入第二安装腔16，并且至少一部分的制冷剂传感器31位于第二制冷剂通道12中，以对第二制冷剂通道12内的制冷剂进行检测。
制冷剂传感器31优选为温度压力传感器，其集成有温度检测功能和压力检测功能。在结构上，制冷剂传感器31具有并排设置的温度检测部31a和压力检测部31b。如图4、25所示，温度检测部31a和压力检测部31b在制冷剂的流动方向上前后设置，温度检测部31a优选地设置在压力检测部31b的上游。温度检测部31a和压力检测部31b优选地与第二制冷剂通道12的中心线对齐设置。这样的设计有助于减少制冷剂传感器31在插入阀体1的方向上所具有的长度。
如图3、5所示，在设置方位上，制冷剂传感器31可以与阀组件2分别设置在阀体1的不同侧，例如阀体1的相邻的两侧。相应地，第一安装腔15和第二安装腔16分别开设在阀体1的不同侧。在未图示的实施方式中，制冷剂传感器31也可以与阀组件2设置在阀体1的同一侧，相应地，第一安装腔15和第二安装腔16开设在阀体1的同一侧。
继续参考图3和图5，主电控板4与阀组件2和制冷剂传感器31分别电连接。制冷剂传感器31检测第二制冷剂通道12内的制冷剂，以产生检测信号，如温度信号和压力信号；主电控板4能够接收该检测信号。主电控板4还被设置成向阀组件2发送驱动信号，以驱动阀组件2运动，从而实现对第一制冷剂通道11内制冷剂的节流过程。更具体地，主电控板4还具有微处理器，该微处理器能够对制冷剂传感器31产生的检测信号进行处理，并产生上述驱动信号。
电连接可通过插针或者软性导电件，如软排线来实现。电连接包括可拆卸地电连接。如图3和图5所示，电子膨胀阀92，94包括软性导电件41；软性导电件41可拆卸地电连接制冷剂传感器31和主电控板4。例如，软性导电件41的一端被设置成与主电控板4卡扣连接并电连接，另一端与制冷剂传感器31焊接。在图3和图5所示的实施例中，阀组件2通过插针与主 电控板4电连接。
如图3、5所示，在设置方位上，主电控板4可以与制冷剂传感器31设置在阀体1的同一侧。在图5中，主电控板4与制冷剂传感器31并排设置并且通过软性导电件41可拆卸地电连接。并排设置的主电控板4与制冷剂传感器31有助于使电子膨胀阀92，94的结构更加紧凑。
在未图示的实施例中，主电控板4也可以与制冷剂传感器31设置在阀体1的不同侧，例如主电控板4与制冷剂传感器31分别设置在阀体1的相邻侧。
继续参考2A，图2B，图3，图5和图6，主电控板4容纳在壳体组件5中，制冷剂传感器31连接在壳体组件5上，更具体地，制冷剂传感器31被压紧在壳体组件5上。这样的设计有助于提高制冷剂传感器31安装的稳定性且使得电子膨胀阀92，94的结构紧凑。
继续参考图5，壳体组件5包括主壳体51；主壳体51具有主控制腔51a；主电控板4设置在主控制腔51a内。阀组件2和主电控板4分别位于阀体1的不同侧。这样的设计使得主控制腔51a在阀体1的设置有主电控板4的一侧能够具有较大的延展空间，从而使得主控制腔51a能够容纳较大尺寸的主电控板4；较大尺寸的主电控板4能够集成更多的电子器件，这对实现电子膨胀阀的智能控制十分有利。
继续参考图5，更具体地，阀组件2和主电控板4分别位于阀体1的相邻的两侧。这有助于提高电子膨胀阀92，94的紧凑度。优选地，阀组件2和主电控板4分别位于阀体1的没有开设制冷剂进口和出口的相邻的两侧。
在未图示的实施例中，阀组件2、主电控板4和制冷剂传感器31可以分别位于阀体1的没有开设制冷剂进口和出口的三个不同侧。
电子膨胀阀92、94具有安装位置，安装位置可以是电子膨胀阀92、94被安装在汽车上之后具有的方位。该安装位置同时是电子膨胀阀92、94处于工作状态时具有的位置。为了避免制冷剂及其包含的润滑油和杂质积存在阀组件2中，对于处在安装位置的电子膨胀阀92，94，阀组件2位于阀体1的以竖直方向为参照的上侧。这样的设计使得在电子膨胀阀92、94的工作过程中进入到阀组件2的罩体225内的制冷剂能够在电子膨胀阀92、94停止工作后能够在重力的作用下流出罩体225，从而避免了制冷剂寄存在阀组件2内部。在该安装位置，阀组件2的轴线与竖直方向的夹角应当小于90 °，优选为小于等于75°。
继续参考图3、4、5、7，电子膨胀阀92，94还包括阀组件传感器32，33；阀组件传感器32，33与主电控板4电连接；阀组件传感器32，33用于检测阀组件2。阀组件传感器32，33设置在主控制腔51a内。只要是能够对阀组件的各个部分进行检测并产生反馈信号的传感器，均属于阀组件传感器32，33的范围。例如，阀组件传感器32，33可以是对转子组件223的永磁体的磁场变化进行检测的霍尔传感器，也可以是对阀芯222的沿阀组件2的轴线的移动进行检测的位置传感器。阀组件传感器32，33可以对阀组件2的异常工作状态，如失步、堵转进行检测。
霍尔传感器能够感应转子组件223的永磁体的磁场变化，并产生反馈信号。该反馈信号传递至主电控板4的微处理器。
如图6、7所示，制冷剂传感器31、主壳体51和阀体1层叠设置，并且沿层叠的方向被连接成一体；其中，主壳体51和制冷剂传感器31中的一个被夹紧在阀体1与主壳体51和制冷剂传感器31中的另一个之间。这样的设计有助于减少电子膨胀阀92，94的装配步骤，并且使得电子膨胀阀92，94的结构紧凑。
继续参考图6，层叠设置的制冷剂传感器31、主壳体51和阀体1通过传感器连接件71连接成一体。传感器连接件71可以是螺钉。传感器连接件71贯穿主壳体51和制冷剂传感器31中的至少一个，并且与阀体1固定连接。
在图6所示的实施例中，主壳体51被夹在制冷剂传感器31和阀体1之间，并且传感器连接件71贯穿制冷剂传感器31和主壳体51。
在未图示的实施例中，制冷剂传感器31的位于阀体1内的部分与阀体1螺纹连接，制冷剂传感器31的位于阀体外的部分将主壳体51压紧在阀体1上。
参考图3、4、5、8A、8B，壳体组件5还包括主盖体52；主壳体51具有主开口51b，主开口51b与主控制腔51a连通；主开口51b可以朝向远离阀体1的方向，并且容许主电控板4进入主控制腔51a；主盖体52用于盖在主壳体51上，以封闭主开口51b。
继续参考图3、4、5、8A、8B，主密封件81沿主开口51b的周向设置，并被夹紧在主盖体52和主壳体51之间，以密封主开口51b。主壳体51和主盖体52的其中一个可以设置容纳主密封件81的凹槽。
继续参考图3、4、5、8A、8B，主壳体51具有传感器孔51c，传感器孔51c与主控制腔51a连通；制冷剂传感器31贯穿传感器孔51c；其中，制冷剂传感器31的一部分位于主控制腔51a内，并且与主电控板4电连接；制冷剂传感器31的另一部分位于主控制腔51a外，并用于检测第二制冷剂通道12内的制冷剂。制冷剂传感器31的位于主控制腔51a内的部分被压紧在主壳体51上。
如图3、6所示，电子膨胀阀92，94还包括传感器密封件82，传感器密封件82沿传感器孔51c的周向设置；传感器密封件82被夹紧在制冷剂传感器31和主壳体51之间，以密封传感器孔51c。
为实现对阀组件2的固定，如图3、4、7所示，电子膨胀阀92，94还包括阀组件连接件72；阀组件连接件72被设置成从阀体1的没有设置阀组件2的一侧插入阀体1，并且与阀组件2的位于阀体1内的一部分限位配合，从而将阀组件2固定在阀体1上。这样的设计使得阀组件2易于装配在阀体1上，并且阀组件连接件72在插入阀体1的过程中不会与阀组件2产生干涉。
更具体地，阀组件连接件72被设置成从阀体1的设置主电控板4的一侧插入阀体1。阀组件连接件72可以是插销。
如图4、5、7、8A、8B所示，主壳体51具有驱动腔51d和阀组件孔51e，阀组件孔51e与驱动腔51d连通；阀组件2贯穿阀组件孔51e；其中，阀组件2的一部分位于驱动腔51d内，并且与主电控板4电连接；阀组件2的另一部分位于主控制腔51a外，并用于节流第一制冷剂通道11内的制冷剂。
继续参考图4、5，线圈组件21作为嵌件通过注塑工艺固定在驱动腔51d内。阀芯组件22通过阀组件孔51e插入驱动腔51d，并且插设在线圈组件21中间。线圈组件21通过插针与主控制腔51a内的主电控板4电连接，其中，该插针在注塑工艺中作为嵌件贯穿驱动腔51d与主控制腔51a的分隔壁。阀座221和阀芯222设置在驱动腔51d外。
如图3、4、5所示，阀组件密封件83沿阀组件孔51e的周向设置；阀组件密封件83被夹紧在阀组件2和主壳体51之间，以密封阀组件孔51e。阀组件密封件83沿阀组件2的径向被主壳体51压紧在阀组件2的罩体225上。更具体地，阀组件密封件83被压紧在罩体225与连接座224的接缝处。
如图7所示，主控制腔51a具有第一腔部51a-1、第二腔部51a-2和角腔部51a-3；第一腔部51a-1和第二腔部51a-2分别位于阀体1的不同侧；角腔 部51a-3从阀体1的设置有第一腔部51a-1的一侧绕过阀体1的一个拐角而延伸到阀体1的设置有第二腔部51a-2的一侧；其中，主电控板4的一部分位于第一腔部51a-1中，另一部分位于角腔部51a-3中。这一设计增大了主控制腔51a的容积，使得主电控板4具有更大的延伸空间。阀体1的一个拐角是指位于阀体1的两个相邻侧的外表面的交汇处。
另外，阀组件2与主电控板4的位于角腔部51a-3内的部分电连接。这一设计使得实现该电连接所需要的插针的长度较短。
第二腔部51a-2位于阀体1的设置阀组件2的一侧；阀组件传感器32，33设置在第二腔部51a-2中。阀组件传感器32，33与主电控板4的位于角腔部51a-3内的部分电连接。更具体地，参考图7，阀组件传感器32，33安装在连接电路板401，402上并且与该连接电路板401，402电连接，该连接电路板401，402设置在主控制腔51a中并且固定连接在主壳体51上，该连接电路板401，402通过插针与主电控板4电连接。
如图5，7所示，主壳体51从阀体1的一侧绕过阀体1的一个拐角而延伸到阀体1的另一侧。更具体地，主壳体51从阀体1的设置有主电控板4的一侧绕过阀体1的一个拐角而延伸到阀体1的设置有阀组件2的一侧。这一方案提高了主壳体51的整体性，有利于电子膨胀阀92，94的装配和制造。
如图3、5、7所示，电子膨胀阀92，94还包括壳体连接件73；壳体连接件73连接主壳体51和阀体1；其中，壳体连接件73的一端在阀体1的设置阀组件2的一侧连接主壳体51，壳体连接件73的另一端在阀体1的设置主电控板4一侧的相对侧连接阀体1。壳体连接件73的设置提高了主壳体51连接在阀体1上的稳定性。
如图3、8、8、9A至9D所示，阀体1的设置制冷剂传感器31的一侧具有第一平坦部13和第一凸起部14；其中，第一凸起部14沿着与传感器31插入阀体1的方向相反的方向凸出于第一平坦部13；传感器31被设置成插入第一凸起部14。第二安装腔16开设在第一凸起部14上。这一设计使得第一凸起部14具有足够的厚度来与固定制冷剂传感器31的连接件配合。第一凸起部14上开设有用于连接制冷剂传感器31的连接孔14a，连接孔14a用于与固定制冷剂传感器31的连接件插接配合。
主壳体51的靠近阀体1的一侧具有第二平坦部511和第二凸起部512；其中，第二凸起部512沿着与传感器31插入阀体1的方向一致的方向凸出 于第二平坦部511；第二平坦部511与第一凸起部14相对设置；第二凸起部512与第一平坦部13相对设置。这一设计有助于增大主控制腔51a的容积。
如图5和图8B所示，主电控板4可以固定在主壳体51上。例如，主电控板4的四个角可以通过螺钉固定到主壳体51上。这一设计有助于增加主电控板4在主控制腔51a内安装的稳定性。图8B显示了主壳体51上用于固定主电控板4的柱孔513。
如图3、4、5、6所示，电子膨胀阀92，94还包括第一阀体密封件801、第二阀体密封件802和第三阀体密封件803。
第一阀体密封件801设置在阀体1的第二安装腔16中，并且环绕制冷剂传感器31而设置；第一阀体密封件801被阀体1和制冷剂传感器31压紧。
第二阀体密封件802和第三阀体密封件803分别设置在第一安装腔15中，并且环绕阀组件2而设置；第二阀体密封件802和第三阀体密封件803被阀体1和阀组件2分别压紧。
更具体地，第二阀体密封件802和第三阀体密封件803分别环绕阀组件2的阀座221而设置。阀座221的阀孔221a在阀组件2的轴向上位于第二阀体密封件802和第三阀体密封件803之间。这样可以确保第一制冷剂通道11内的制冷剂能够全部通过阀孔221a。
图10A至图10D以及图11、12、13、14A、14B、15A、15B示出了本发明中的电子膨胀阀92，94的第二个实施例。第二个实施例与第一个实施例相同的零部件采用相同的附图标记，并且第二个实施例与第一个实施例的技术方案相同的部分不再赘述。
参考图10A至图10D以及图11、12、13、15A、15B，壳体组件5还包括副壳体53；副壳体53具有驱动腔53a和阀组件孔53b；阀组件孔53b与驱动腔53a连通；阀组件2贯穿阀组件孔53b；其中，阀组件2的一部分位于驱动腔53a内，并且与主电控板4电连接；阀组件2的另一部分位于驱动腔53a外，并用于节流第一制冷剂通道11内的制冷剂；副壳体53与主壳体51可拆卸地连接。这一方案使得电子膨胀阀92，94具有较高的模块化程度，使得电子膨胀阀92，94易于拆卸。
继续参考图12、13，线圈组件21作为嵌件通过注塑工艺固定在驱动腔53a内。阀芯组件22通过阀组件孔53b插入驱动腔53a，并且插设在线圈组件21中间。线圈组件21通过软性导电件42与主控制腔51a内的主电控板4 电连接。阀座221和阀芯222设置在驱动腔53a外。
如图11、12、13所示，阀组件密封件84沿阀组件孔53b的周向设置；阀组件密封件84被夹紧在阀组件2和副壳体53之间，以密封阀组件孔53b。阀组件密封件84沿阀组件2的径向被副壳体53压紧在阀组件2的罩体225上。更具体地，阀组件密封件84被压紧在罩体225与连接座224的接缝处。
如图11、12、13、14A、14B、15A、15B所示，副壳体53还具有副控制腔53c和副连接开口53d；副连接开口53d与副控制腔53c连通；主壳体51具有主连接开口51f；主连接开口51f与主控制腔51a连通；副连接开口53d被设置成与主连接开口51f连通，从而使副控制腔53c与主控制腔51a连通。软性导电件42贯穿主连接开口51f和副连接开口53d，以将主电控板4和阀组件2可拆卸地电连接。软性导电件42可以是软排线。软性导电件42的一端被设置成与主电控板4卡扣连接并电连接，另一端与阀组件2焊接。
继续参考图12、13、15A，副控制腔53c与主控制腔51a分别位于阀体1的不同侧，例如相邻的两侧；其中，主控制腔51a位于阀体1的设置主电控板4的一侧。副控制腔53c位于阀体1的设置阀组件2的一侧。
壳体组件5还包括副盖体54；副壳体53具有副开口53e，副开口53e与副控制腔53c连通；副盖体54用于盖在副壳体53上，以封闭副开口53e。副盖体54与副壳体53可以焊接。
电子膨胀阀92，94还包括连接密封件85；连接密封件85沿副连接开口53d和主连接开口51f的周向设置；连接密封件85被夹紧在主壳体51和副壳体53之间，以密封副连接开口53d和主连接开口51f。
阀组件传感器32，33设置在副控制腔53c内。软性导电件43贯穿主连接开口51f和副连接开口53d，以将主电控板4和阀组件传感器32，33可拆卸地电连接。更具体地，参考图13，阀组件传感器32，33安装在连接电路板404，405上并且与该连接电路板404，405电连接，该连接电路板404，405设置在副控制腔53c中并且固定连接在主壳体51上，该连接电路板404，405通过软性导电件43与主电控板4电连接。
软性导电件43可以是软排线。软性导电件43的一端被设置成与主电控板4卡扣连接并电连接，另一端与连接电路板404，405焊接。
如图11、13所示，电子膨胀阀92，94还包括壳体连接件74；壳体连接件74连接副壳体53和阀体1；其中，壳体连接件74的一端在阀体1的设置 阀组件2的一侧连接副壳体53，壳体连接件74的另一端在阀体1的设置主电控板4一侧的相对侧连接阀体1。这一方案能够提供副壳体53在阀体1上连接的稳定性。
如图11所示，电子膨胀阀92，94还包括壳体组件连接件75；副壳体53与主壳体51通过壳体组件连接件75可拆卸地连接。壳体组件连接件75可以是螺钉。
如图11所示，主壳体51具有接口部510。接口部510通过连接电路板403实现与主电控板4电连接。接口部510用于与外界连接。
图16A至图16D以及图17、18、19、20、21A、21B、22A、22B示出了本发明中的电子膨胀阀92，94的第三个实施例。第三个实施例与第一个实施例相同的零部件采用相同的附图标记，并且第三个实施例与第一个实施例的技术方案相同的部分不再赘述。
如图16A至图16D以及图17、22A、22B所示，壳体组件5还包括副壳体55；副壳体55具有副控制腔55a和传感器孔55b；传感器孔55b与副控制腔55a连通；制冷剂传感器31贯穿传感器孔55b；其中，制冷剂传感器31的一部分位于副控制腔55a内，并且与主电控板4电连接；制冷剂传感器31的另一部分位于副控制腔55a外，并用于检测第二制冷剂通道12内的制冷剂；副壳体55与主壳体51可拆卸地连接。这一方案使得电子膨胀阀92，94具有较高的模块化程度，使得电子膨胀阀92，94易于拆卸。
制冷剂传感器31的位于副控制腔55a内的部分被压紧在副壳体55上。
参考图17、19、21A、21B、22A、22B，副壳体55还具有副连接开口55c；副连接开口55c与副控制腔55a连通；主壳体51具有主连接开口51g；主连接开口51g与主控制腔51a连通；副连接开口55c被设置成与主连接开口51g连通，从而使副控制腔55a与主控制腔51a连通。软性导电件41贯穿主连接开口51g和副连接开口55c，以将主电控板4和制冷剂传感器31可拆卸地电连接。软性导电件41可以是软排线。软性导电件41的一端被设置成与主电控板4卡扣连接并电连接，另一端与制冷剂传感器31焊接。
继续参考图19，副控制腔55a与主控制腔51a均位于阀体1的设置主电控板4的一侧。副控制腔55a与主控制腔51a并排设置。
如图17、20所示，壳体组件5还包括副盖体56；副壳体55具有副开口55d，副开口55d与副控制腔55a连通；副盖体56用于盖在副壳体55上， 以封闭副开口55d。在本实施例中，副盖体56可以与副壳体55焊接。主盖体52可以与主壳体51焊接。副开口55d与主开口51b均朝着远离阀体1的方向开设。
如图17、19所示，电子膨胀阀92，94还包括连接密封件86；连接密封件86沿副连接开口55c和主连接开口51g的周向设置；连接密封件86被夹紧在主壳体51和副壳体55之间，以密封副连接开口55c和主连接开口51g。
继续参考图19，制冷剂传感器31、副壳体55和阀体1层叠设置，并且沿层叠的方向被连接成一体；其中，副壳体55和制冷剂传感器31中的一个被夹紧在阀体1与副壳体55和制冷剂传感器31中的另一个之间。这样的设计有助于减少电子膨胀阀92，94的装配步骤，并且使得电子膨胀阀92，94的结构紧凑。
如图17、20所示，电子膨胀阀92，94还包括传感器连接件76；层叠设置的制冷剂传感器31、副壳体55和阀体1通过传感器连接件76连接成一体。传感器连接件76可以是螺钉。传感器连接件76贯穿副壳体55和制冷剂传感器31中的至少一个，并且与阀体1固定连接。
在图20所示的实施例中，副壳体55被夹在制冷剂传感器31和阀体1之间，并且传感器连接件76贯穿制冷剂传感器31和副壳体55。
在未图示的实施例中，制冷剂传感器31的位于阀体1内的部分与阀体1螺纹连接，制冷剂传感器31的位于阀体外的部分将副壳体55压紧在阀体1上。
如图17、20所示，电子膨胀阀92，94还包括传感器密封件87；传感器密封件87沿传感器孔55b的周向设置；传感器密封件87被夹紧在副壳体55和阀体1之间，以密封传感器孔55b。
电子膨胀阀92，94还包括壳体组件连接件77；副壳体55与主壳体51通过壳体组件连接件77可拆卸地连接。壳体组件连接件77可以是螺钉。
为实现阀组件2与阀体1的固定，本领域技术人员根据本发明的说明书内容还可以得出：电子膨胀阀，包括：阀体1，阀体1具有第一制冷剂入口1a和第一制冷剂出口1b，其中，第一制冷剂入口1a和第一制冷剂出口1b之间形成第一制冷剂通道11；阀组件2，用于节流第一制冷剂通道11内的制冷剂；电子膨胀阀92，94还包括：阀组件连接件72；阀组件连接件72被设置成从阀体1的没有设置阀组件2的一侧插入阀体1，并且与阀组件2 的位于阀体1内的一部分限位配合，从而将阀组件2固定在阀体1上。这样的方案使得阀组件2在阀体1上固定的过程中不会和阀组件连接件72互相影响，且固定的方式也比较简单。
阀组件连接件72被设置成从阀体1的设置阀组件2的一侧的相邻侧插入阀体1。
阀体1具有第一安装腔15和限位孔1e；第一安装腔15开设在阀体1的一侧，限位孔1e开设在阀体1的另一侧；其中，第一安装腔15容许阀组件2插入，限位孔1e容许阀组件连接件72插入；限位孔1e与第一安装腔15在阀体1的内部连通，以使阀组件连接件72在插入限位孔1e后能够位于第一安装腔15中，从而与阀组件2的位于第一安装腔15内的部分限位配合。
阀组件2具有用于与阀组件连接件72限位配合的凹部221b。
阀组件连接件72被限位孔1e的内壁和凹部221b夹持。
阀组件连接件72的数量为两个，分别与阀组件2的两侧限位配合。
阀组件2的阀座221与阀组件连接件72限位配合。
两个阀组件连接件72关于阀组件2对称设置。
为实现对阀组件2的工作状态进行检测，本领域技术人员根据本发明的说明书内容还可以得出：一种电子膨胀阀，包括：阀体1，阀体1具有第一制冷剂入口1a和第一制冷剂出口1b，其中，第一制冷剂入口1a和第一制冷剂出口1b之间形成第一制冷剂通道11；阀组件2，用于节流第一制冷剂通道11内的制冷剂；主电控板4，与阀组件2电连接；电子膨胀阀92，94还包括：阀组件传感器32，33；阀组件传感器32，33与主电控板4电连接；阀组件传感器32，33用于检测阀组件2；阀组件2和主电控板4分别位于阀体1的不同侧。这样的方案使得阀组件2的工作状态能够被检测。阀组件传感器32，33可以但不限于是霍尔传感器。
电子膨胀阀92，94还包括壳体组件5，壳体组件5包括主壳体51；主壳体51具有主控制腔51a；主电控板4设置在主控制腔51a内；阀组件传感器32，33设置在主控制腔51a内。
阀组件传感器32沿阀组件2的轴线设置在阀组件2的远离阀体1的一端。在这个实施例中，阀组件传感器32为角度型霍尔传感器。
阀组件传感器33设置在阀组件2的径向上的外侧。在这个实施例中，阀组件传感器32为开关型霍尔传感器。
主控制腔51a具有第一腔部51a-1、第二腔部51a-2和角腔部51a-3；第一腔部51a-1和第二腔部51a-2分别位于阀体1的不同侧；角腔部51a-3从阀体1的设置有第一腔部51a-1的一侧绕过阀体1的一个拐角而延伸到阀体1的设置有第二腔部51a-2的一侧；其中，主电控板4的一部分设置在第一腔部51a-1中，另一部分设置在角腔部51a-3中。
阀组件传感器32，33设置在第二腔部51a-2内，阀组件传感器32，33与主电控板4的位于角腔部51a-3内的部分电连接。
第二腔部51a-2位于阀体1的设置阀组件2的一侧，第一腔部51a-1位于阀体1的设置主电控板4的一侧。
电子膨胀阀92，94还包括壳体组件5，壳体组件5包括主壳体51和副壳体53；副壳体53与主壳体51可拆卸地连接；主壳体51具有主控制腔51a；主电控板4设置在主控制腔51a内；副壳体53具有副控制腔53c，阀组件传感器32，33设置在副控制腔53c内。
副壳体53还具有副连接开口53d；副连接开口53d与副控制腔53c连通；主壳体51具有主连接开口51f；主连接开口51f与主控制腔51a连通；副连接开口53d被设置成与主连接开口51f连通，从而使副控制腔53c与主控制腔51a连通；软性导电件43贯穿主连接开口51f和副连接开口53d，以将主电控板4和阀组件传感器32，33可拆卸地电连接。
副控制腔53c位于阀体1的设置阀组件2的一侧。
为实现制冷剂传感器31在电子膨胀阀92，94上固定，本领域技术人员根据本发明的说明书内容还可以得出：一种电子膨胀阀，包括：阀体1，阀体1具有第一制冷剂入口1a、第一制冷剂出口1b、第二制冷剂入口1c和第二制冷剂出口1d，其中，第一制冷剂入口1a和第一制冷剂出口1b之间形成第一制冷剂通道11，第二制冷剂入口1c和第二制冷剂出口1d之间形成第二制冷剂通道12；阀组件2，用于节流第一制冷剂通道11内的制冷剂；制冷剂传感器31，用于检测第二制冷剂通道12内的制冷剂；主电控板4，分别与阀组件2和制冷剂传感器31电连接；电子膨胀阀92，94还包括：壳体组件5，包括主壳体51；主壳体51具有主控制腔51a；主电控板4设置在主控制腔51a内；制冷剂传感器31被压紧在壳体组件5上。这一方案能够提高制冷剂传感器31在电子膨胀阀92，94上安装的稳定性。
制冷剂传感器31、主壳体51和阀体1层叠设置，并且沿层叠的方向被 连接成一体；其中，主壳体51和制冷剂传感器31中的一个被夹紧在阀体1与主壳体51和制冷剂传感器31中的另一个之间。
电子膨胀阀92，94还包括传感器连接件71；层叠设置的制冷剂传感器31、主壳体51和阀体1通过传感器连接件71连接成一体。
制冷剂传感器31的位于主控制腔51a内的部分被压紧在主壳体51上。
壳体组件5还包括副壳体55；副壳体55与主壳体51可拆卸地连接；制冷剂传感器31被压紧在副壳体55上。
制冷剂传感器31、副壳体55和阀体1层叠设置，并且沿层叠的方向被连接成一体；其中，副壳体55和制冷剂传感器31中的一个被夹紧在阀体1与副壳体55和制冷剂传感器31中的另一个之间。
电子膨胀阀92，94还包括传感器连接件76；层叠设置的制冷剂传感器31、副壳体55和阀体1通过传感器连接件76连接成一体。
副壳体55具有副控制腔55a和传感器孔55b；传感器孔55b与副控制腔55a连通；制冷剂传感器31贯穿传感器孔55b；其中，制冷剂传感器31的一部分位于副控制腔55a内，并且与主电控板4电连接；制冷剂传感器31的另一部分位于副控制腔55a外，并用于检测第二制冷剂通道12内的制冷剂。
制冷剂传感器31的位于副控制腔55a内的部分被压紧在副壳体55上。
如图23所示，制冷剂传感器31的插针贯穿传感器孔51c并伸入主控制腔51a，以与主电控板4插接。制冷剂传感器31的位于主控制腔51a之外的部分被夹紧在主壳体51和阀体1之间。
在图23中，制冷剂传感器31的位于主控制腔51a之外的部分被压紧在主壳体51上。主壳体51具有朝向远离阀体1设置的主开口51b。主电路板4通过主开口51b装入主控制腔51a。
如图24所示，主壳体51具有朝向阀体1设置的主开口51b，主电路板4设置在主壳体51和阀体1之间，位于主控制腔51a中。制冷剂传感器31被夹紧在主壳体51和阀体1之间。主电路板4通过该开口装入主壳体51。
本领域技术人员根据本发明的说明书内容还可以得出一种电子膨胀阀的制造方法，其包括将制冷剂传感器31压紧在壳体组件5上的步骤。
更具体地，电子膨胀阀的制造方法包括将制冷剂传感器31压紧在主壳 体51或者副壳体55上的步骤。
更具体地，电子膨胀阀的制造方法包括先将制冷剂传感器31、主壳体51和阀体1层叠设置，再将制冷剂传感器31、主壳体51和阀体1沿层叠方向连接成一体的步骤。
更具体地，电子膨胀阀的制造方法包括先将制冷剂传感器31、副壳体55和阀体1层叠设置，再将制冷剂传感器31、副壳体55和阀体1沿层叠方向连接成一体的步骤。
更具体地，电子膨胀阀的制造方法包括使用传感器连接件71将制冷剂传感器31、主壳体51和阀体1沿层叠方向连接成一体的步骤。
更具体地，电子膨胀阀的制造方法包括使用传感器连接件76将制冷剂传感器31、副壳体55和阀体1沿层叠方向连接成一体的步骤。
本发明虽然以较佳实施例公开如上，但其并不是用来限定本发明，任何本领域技术人员在不脱离本发明的精神和范围内，都可以做出可能的变动和修改，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何修改、等同变化及修饰，均落入本发明权利要求所界定的保护范围之内。

Claims (10)

  1. 一种电子膨胀阀，包括：
    阀体(1)，所述阀体(1)具有第一制冷剂入口(1a)、第一制冷剂出口(1b)、第二制冷剂入口(1c)和第二制冷剂出口(1d)，其中，所述第一制冷剂入口(1a)和所述第一制冷剂出口(1b)之间形成第一制冷剂通道(11)，所述第二制冷剂入口(1c)和所述第二制冷剂出口(1d)之间形成第二制冷剂通道(12)；
    阀组件(2)，用于节流所述第一制冷剂通道(11)内的制冷剂；
    制冷剂传感器(31)，用于检测所述第二制冷剂通道(12)内的制冷剂；
    主电控板(4)，分别与所述阀组件(2)和所述制冷剂传感器(31)电连接；
    其特征在于，所述电子膨胀阀(92，94)还包括：
    壳体组件(5)，包括主壳体(51)；所述主壳体(51)具有主控制腔(51a)；所述主电控板(4)设置在所述主控制腔(51a)内；所述制冷剂传感器(31)被压紧在所述壳体组件(5)上。
  2. 如权利要求1所述的电子膨胀阀，其特征在于，所述制冷剂传感器(31)、所述主壳体(51)和所述阀体(1)层叠设置，并且沿层叠的方向被连接成一体；其中，所述主壳体(51)和所述制冷剂传感器(31)中的一个被夹紧在所述阀体(1)与所述主壳体(51)和所述制冷剂传感器(31)中的另一个之间。
  3. 如权利要求2所述的电子膨胀阀，其特征在于，所述电子膨胀阀(92，94)还包括传感器连接件(71)；层叠设置的所述制冷剂传感器(31)、所述主壳体(51)和所述阀体(1)通过所述传感器连接件(71)连接成一体。
  4. 如权利要求2所述的电子膨胀阀，其特征在于，所述主壳体(51)具有传感器孔(51c)，所述传感器孔(51c)与所述主控制腔(51a)连通；所述制冷剂传感器(31)贯穿所述传感器孔(51c)；
    其中，所述制冷剂传感器(31)的一部分位于所述主控制腔(51a)内，并且与所述主电控板(4)电连接；所述制冷剂传感器(31)的另一部分位于所述主控制腔(51a)外，并用于检测所述第二制冷剂通道(12)内的制 冷剂。
  5. 如权利要求4所述的电子膨胀阀，其特征在于，所述制冷剂传感器(31)的位于所述主控制腔(51a)内的部分被压紧在所述主壳体(51)上。
  6. 如权利要求1所述的电子膨胀阀，其特征在于，所述壳体组件(5)还包括副壳体(55)；所述副壳体(55)与所述主壳体(51)可拆卸地连接；
    所述制冷剂传感器(31)、所述副壳体(55)和所述阀体(1)层叠设置，并且沿层叠的方向被连接成一体；其中，所述副壳体(55)和所述制冷剂传感器(31)中的一个被夹紧在所述阀体(1)与所述副壳体(55)和所述制冷剂传感器(31)中的另一个之间。
  7. 如权利要求6所述的电子膨胀阀，其特征在于，所述电子膨胀阀(92，94)还包括传感器连接件(76)；层叠设置的所述制冷剂传感器(31)、所述副壳体(55)和所述阀体(1)通过所述传感器连接件(76)连接成一体。
  8. 如权利要求6所述的电子膨胀阀，其特征在于，所述副壳体(55)具有副控制腔(55a)和传感器孔(55b)；所述传感器孔(55b)与所述副控制腔(55a)连通；所述制冷剂传感器(31)贯穿所述传感器孔(55b)；
    其中，所述制冷剂传感器(31)的一部分位于所述副控制腔(55a)内，并且与所述主电控板(4)电连接；所述制冷剂传感器(31)的另一部分位于所述副控制腔(55a)外，并用于检测所述第二制冷剂通道(12)内的制冷剂。
  9. 如权利要求8所述的电子膨胀阀，其特征在于，所述副壳体(55)还具有副连接开口(55c)；所述副连接开口(55c)与所述副控制腔(55a)连通；所述主壳体(51)具有主连接开口(51g)；所述主连接开口(51g)与所述主控制腔(51a)连通；
    所述副连接开口(55c)被设置成与所述主连接开口(51g)连通，从而使所述副控制腔(55a)与所述主控制腔(51a)连通。
  10. 一种热管理组件，包括换热器(95)，所述换热器(95)具有第一换热通道(95a)和第二换热通道(95b)；所述第一换热通道(95a)与所述第二换热通道(95b)互不连通，其特征在于，所述热管理组件还包括如权利要求1至9中任意一项权利要求所述的电子膨胀阀(94)；所述电子膨胀阀(94)安装在所述换热器(95)上，其中，所述电子膨胀阀(94)与所述第一换热通道(95a)连通。
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