WO2021218985A1 - 热交换装置 - Google Patents

热交换装置 Download PDF

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Publication number
WO2021218985A1
WO2021218985A1 PCT/CN2021/090450 CN2021090450W WO2021218985A1 WO 2021218985 A1 WO2021218985 A1 WO 2021218985A1 CN 2021090450 W CN2021090450 W CN 2021090450W WO 2021218985 A1 WO2021218985 A1 WO 2021218985A1
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WO
WIPO (PCT)
Prior art keywords
section
welding
plate
valve seat
welded
Prior art date
Application number
PCT/CN2021/090450
Other languages
English (en)
French (fr)
Inventor
宋斌
姚远
叶克立
张荣荣
Original Assignee
浙江三花汽车零部件有限公司
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 浙江三花汽车零部件有限公司 filed Critical 浙江三花汽车零部件有限公司
Priority to US17/917,565 priority Critical patent/US20230145891A1/en
Priority to EP21795628.3A priority patent/EP4145591A4/en
Publication of WO2021218985A1 publication Critical patent/WO2021218985A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • 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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0251—Massive connectors, e.g. blocks; Plate-like connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • 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
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to the technical field of thermal management, in particular to a heat exchange device.
  • the thermal management system will include a circuit with refrigerant.
  • two components a heat exchanger and an expansion valve, are required. These two components are generally connected in a pipeline connection in the thermal management system.
  • the parts of the heat exchanger are fixed by welding. During the welding process, due to the melting of the solder, the heat exchanger will be highly contracted after welding. Therefore, in the integration of the heat exchanger and the expansion valve , The valve body of the expansion valve will be fixed with the mounting plate of the heat exchanger.
  • the purpose of the present invention is to provide a heat exchange device with better sealing performance.
  • An embodiment of the present application provides a heat exchange device, including a valve core component and a core component, the valve core component and the core component are fixedly arranged;
  • the core member has a plate portion, the plate portion has a plurality of plates, and the plate portion has at least a first hole, a second hole, and an inter-plate passage, the first orifice, the inter-plate passage, The second channel is connected;
  • the heat exchange device includes a connecting piece, the connecting piece has a first end and a second end, the first end is located in the first channel, and the second end has a welding section and an adjacent section ,
  • the core member has a welding mating part, the welding section is welded to the welding mating part, the adjacent section is adjacent to the welding section, and the outer diameter of the welding section is less than or equal to that of the welding mating part
  • the inner diameter, the outer diameter of the adjacent section is less than or equal to the inner diameter of the welding fitting part; between the end of the welding fitting part away from the valve core part and the end of the welding part away from the valve core part The distance is greater than or equal to zero;
  • the valve core component has a valve seat portion, the valve seat portion has a bottom opening, an orifice, and a peripheral opening, the orifice can communicate with the peripheral opening and the bottom opening, and the peripheral
  • the opening is communicated with the part of the first channel outside the connecting piece; the connecting piece has a communicating cavity, and the bottom opening communicates with the communicating cavity of the connecting piece.
  • the above-mentioned technical solution of the present application includes a connecting piece, the welding section of the connecting piece is welded to the welding mating part, the adjacent section is adjacent to the welding section, the outer diameter of the welding section is less than or equal to the inner diameter of the welding mating part, and the outer diameter of the adjacent section is less than or It is equal to the inner diameter of the welding fitting part; in this way, when the core part shrinks during the welding process, since the connecting piece has a welding section and an adjacent section, the welding fitting part is far away from the valve core part and the welding part is far away from the valve core part.
  • the distance between the two is greater than or equal to zero; so that during the welding shrinkage process of the core part, the welding mating part can move relative to the connecting part, and the welding sealing performance of the connecting part and the core part is better.
  • Fig. 1 is a schematic structural diagram of an embodiment of a heat exchange device
  • Figure 2 is a schematic cross-sectional view of Figure 1;
  • Fig. 3 is a three-dimensional exploded schematic diagram of Fig. 1;
  • FIG. 4 is a schematic cross-sectional view of a second embodiment of the heat exchange device
  • Fig. 5 is a three-dimensional exploded schematic view of the heat exchange device shown in Fig. 4;
  • Figure 6 is a schematic cross-sectional view of another embodiment of the heat exchange device.
  • Fig. 7 is a schematic cross-sectional view of another embodiment of the heat exchange device.
  • Fig. 1 illustrates a schematic diagram of the three-dimensional structure of the first heat exchange device 1 of the present invention.
  • the heat exchange device 1 includes at least a first flow channel 101 and a second flow channel.
  • the fluid in the first flow channel 101 can exchange heat with the fluid in the second flow channel; the fluid in the first flow channel 101 can be a refrigerant, and the fluid in the second flow channel can be For the coolant.
  • the heat exchange device 1 may also have a third flow path, a fourth flow path, and the like.
  • the heat exchange device 1 includes a valve core member 11, a core member 12, and a connecting member 13.
  • the valve core member 11 and the core member 12 are assembled and fixed, and the connecting member 13 and the core member 12 are fixedly arranged, for example, welded.
  • the valve core component 11 may be, for example, the valve core structure of an expansion valve.
  • the core member 12 has a top pressure block 122, a plate portion 121, and a bottom pressure block 123, and the top pressure block 122, the plate portion 121, and the bottom pressure block 123 are welded and fixed.
  • the plate portion 121 has at least a first channel 1211, a second channel 1213, and an inter-plate channel 1212.
  • the first channel 1211, the inter-plate channel 1212, and the second channel 1213 are connected, and the first flow channel 101 includes a part of the first channel 1211, the second channel Hole 1213, inter-plate channel 1212.
  • first hole 1211 and the second hole 1213 are the holes when the core part 12 is not equipped with the valve core part 11.
  • the first port 1211 and the second port 1213 are equipped with valve core components or connectors, even if there are components or parts located in other components, as long as the location of the component is the first port and the second port of the core component, this article It still means that the component or part is located in the first channel or the second channel.
  • the plate portion 121 has a plurality of stacked plates, adjacent plates are welded and fixed, each plate has at least a first hole and a second hole, and the first holes of each plate are aligned along the stacking direction of the plates Setting, the second holes of each plate are aligned.
  • the first hole and the second hole are located near the edge of the plate, so the fluid flowing through the plate can have a longer flow path, which helps to improve the heat exchange efficiency.
  • the first holes of each plate are aligned to form a part of the first channel 1211, and the second holes of each plate are aligned to form a part of the second channel 1213.
  • the top pressure block 122 has a third hole 1221, and the third hole 1221 is aligned with the first hole.
  • the alignment here includes that the axis of the first hole is coaxial with the axis of the third hole or the axes of the two are parallel; the bottom pressure block 123 has communication
  • the hole 1231 and the communicating hole 1231 are aligned with the first hole, where the alignment includes that the axis of the first hole is coaxial with the axis of the third hole or the axes of both are parallel.
  • the heat exchange device 1 includes a communication channel 103 and another communication channel 104.
  • the communication channel 103 is in communication with the communication cavity 138 of the connector 13, and the other communication channel 104 can be in communication with the second channel 1213, so that fluid can enter from the communication channel 103, Through the inner cavity of the connecting piece 13, after being throttled and adjusted by the valve core component 11, it enters the first channel and then enters the inter-plate passage 1212 of the core component 12.
  • the fluid exchanges heat between the inter-plate passage 1212 and the second flow passage.
  • the path is simple and the heat exchange efficiency is high.
  • the other communication channel 104 may not directly communicate with the second channel 1213.
  • a pipe is provided in the second channel 1213 and communicates with the other communication channel 104 through the pipe.
  • the other communication channel 104 may not communicate with the inter-plate channel 1212 through the second channel 1213, and the other communication channel 104 and the communication channel 103 may also be arranged on the same side of the core member 12, and the other communication channel 104 may be adjacent to the communication channel 103 and not directly communicate with the communication channel 103.
  • the core member 12 has a first side portion 124 and a second side portion 126. At least part of the valve core member 11 is located on the side where the first side portion 124 is located, or in other words, the first side portion 124 of the core member 12 refers to The core member 12 is provided on one side of the valve core member 11.
  • the communication passage 103 is located on the side where the second side portion 126 is located, and the communication passage 103 is in communication with the communication cavity 138.
  • the valve core component 11 includes a coil portion 1120, and the coil portion 1120 is located on the side where the first side portion 124 is located.
  • At least part of the valve core component 11 extends into the first hole 1211, and at least part of the connecting member 13 extends into the first hole 1211.
  • the valve core component 11 has a valve seat portion 111, at least part of the valve seat portion 111 is located in the first port 1211, the valve seat portion 111 has a peripheral opening 1113, an orifice 1114, and a bottom opening 1115.
  • the peripheral opening 1113 is connected to the first port 1211. 1211 communicates with the inter-plate passage 1212.
  • the connecting member 13 has a communication cavity 138. One end of the connecting member 13 is located in the first channel 1211.
  • the bottom opening 1115 is in communication with the communication cavity 138 of the connecting member 13.
  • the channel 1211 is directly connected.
  • the valve core part 11 may be a valve core part of an electronic expansion valve.
  • the fluid from the communication cavity 138 of the connecting member 13 can enter the inter-plate passage 1212 through the bottom opening 1115, the orifice 1114, the peripheral opening 1113, and the first channel 1211, so that the fluid can enter the inter-plate passage 1212 within the plate portion 121.
  • the fluid between the sheets exchanges heat.
  • the peripheral opening 1113 may directly communicate with the first channel 1211, or may directly communicate with the inter-plate channel 1212.
  • the fact that the communication cavity 138 does not directly communicate with the first channel 1211 does not exclude the communication between the two through the flow channel provided by other components.
  • the connecting member 13 has a ring wall portion 131, and the valve seat portion 111 and the ring wall portion 131 are arranged in a sealed manner.
  • the sealing form may be, for example, a radial seal or an axial seal.
  • the valve seat 111 has a base section 1111 and a middle section 1112.
  • the base section 1111 has a bottom opening 1115.
  • the base section 1111 is located inside the connector 13 and the peripheral side of the base section 1111 is sealed with the ring wall 131 of the connector 13.
  • the middle section 1112 has a peripheral opening 1113. In the stacking direction of the core member 12, the middle section 1112 is close to the first side 124 of the core member 12 relative to the base section 1111, the middle section 1112 is located at the plate section 121, and the peripheral opening 1113 It communicates with the inter-plate passage 1212.
  • the depth at which the valve core component 11 is assembled to the core component 12 is deeper, which helps reduce the height of the valve core component 11 protruding from the core component 12, and contributes to a smaller and more compact overall structure.
  • the connecting member 13 has a valve seat fitting portion 132 and a drainage tube 133, and the valve seat fitting portion 132 and the drainage tube 133 are fixedly arranged, for example, it can be fixed by welding, or by other fixing methods such as pressure riveting.
  • the valve seat mating portion 132 is provided with a ring wall portion 131, and the height of the ring wall portion 131 is greater than the height of the base section 1111 in the plate stacking direction of the core member 12.
  • the base section 1111 is provided with a first groove 1116
  • the heat exchange device 1 has a first sealing member 14, the first sealing member 14 is located in the first groove 1116, the first sealing member 14 and the ring wall portion 131 are in a tight fit to achieve both In this way, the leakage between the base section 1111 and the ring wall 131 is effectively prevented.
  • the valve seat mating portion 132 has a side hole 1321, and in the plate stacking direction of the core member 12, the side hole 1321 is closer to the first side portion 124 of the core member 12 relative to the ring wall portion 131.
  • the side hole 1321 corresponds to the peripheral opening 1113 of the valve core member 11. In this way, the fluid enters from the bottom opening 1115 of the valve core member 11 through the drainage tube 133, enters the first port 1211 through the orifice 1114, the peripheral opening 1113, and the side port 1321, and enters the inter-plate communicating with the first port 1211
  • the channel 1212 exchanges heat with the fluid in the second flow channel.
  • the throttling and pressure reduction of the refrigerant is completed inside the core part 12, which is smoothly connected with the subsequent heat exchange links, which reduces the gas-liquid stratification of the refrigerant after throttling and pressure reduction due to the pipeline setting.
  • Factors such as influence the heat exchange efficiency of subsequent heat exchange.
  • the connecting member 13 is fixed to the core member 12 by welding.
  • the core member 12 has a welding fitting portion 125.
  • the welding fitting portion 125 is fixed to the connecting member 13 by welding.
  • the thickness of the welding fitting portion 125 is greater than at least The thickness of the superimposed two plates; in this way, during the welding shrinkage process of the core part 12, since the welding mating portion 125 has a thickness greater than the superimposed thickness of the two plates, the connecting piece 13 can be welded to the welding mating portion 125 during the welding process Good, conducive to the stability of sealing.
  • the connecting piece 13 has a first end 134 and a second end 135.
  • the first end 134 is located in the first channel 1211.
  • the second end 135 of the connecting piece 13 has a welding section 1352 and an adjacent section 1351.
  • the welding section 1352 is welded to the welding mating part 125, the adjacent section 1351 is adjacent to the welding section 1352, and the adjacent section 1351 is closer to the first end 134 than the welding section 1352, and the outer diameter of the welding section 1352 is less than or equal to the welding mating part 125
  • the inner diameter of the adjacent section 1351 is less than or equal to the inner diameter of the welding mating part 125; when the core part shrinks during the welding process, the welding mating part is far away from the valve core part because the connector has a welding section and an adjacent section
  • the distance between one end of the welding section and the end of the welding section away from the valve core component is greater than or equal to zero; making the core component in the process of welding shrinkage, the welding mating part can move relative to
  • the outer diameter of the adjacent section 1351 can also be greater than or equal to the outer diameter of the welding section 1352, and the welding section 1352 can be reduced in diameter relative to the adjacent section 1351, which is more conducive to the relative connection of the plate portion to the connecting piece during the welding process. sports.
  • the valve seat mating portion 132 has a flange portion 1322, and the flange portion 1322 is fixed to the core member 12 by welding.
  • the plates of the core member 12 include a first plate 1214a and a second plate 1215a.
  • the first plate 1214a is welded to the second plate 1215a, and the top or bottom of the flange 1322 is welded to the first plate 1214a. Or the top or bottom of the flange portion 1322 and the second plate 1215a are welded and fixed.
  • the core member 12 has a pressing block 122, the flange portion 1322 and the pressing block 122 are welded and fixed, and the valve seat portion 111 of the valve core member 11 extends from the third hole 1221 of the pressing block 122.
  • the flange portion 1322 can limit and fix the valve seat mating portion 132 and the plate portion 121.
  • the flange portion 1322 is welded and fixed to the pressing block 122 of the core member 12 to ensure The certainty of the position of the valve seat matching portion 132 in the core member 12 reduces the influence of the position of the valve seat matching portion 132 after the plate shrinks, and reduces the risk of fluid leakage between the valve seat matching portion 132 and the valve seat.
  • the core part 12 has a bottom pressing block 123, a part of the connecting piece 13 extends into the bottom pressing block 123, the bottom pressing block 123 has a welding fitting part 125, the welding section 1352 is located at the bottom pressing block 123, and the welding section 1352 is located at the welding fitting part 125, The welding section 1352 is welded and fixed to the bottom pressing block 123, and the first end 134 is welded and fixed to the core member 12.
  • the connecting piece 13 can be welded and fixed together with the core part during the welding process of the core part, and the welding can be completed at one time, and the processing is convenient.
  • the valve seat fitting portion 132 has a bottom end 1328, the drainage tube 133 and the bottom end 1328 are welded and fixed, a part of the drainage tube 133 extends into the valve seat fitting portion 132; the drainage tube 133 has a first part 1331 and a second part 1332, the first part At least part of 1331 extends into the valve seat matching part 132, and at least part of the first part 1331 and the valve seat matching part 132 are welded and fixed.
  • the second end of the connecting piece 13 is disposed on the second part of the drainage tube 133, and the second part 1332 of the drainage tube 133 is located at the welding fitting part 125 and is welded and fixed to the welding fitting part 125.
  • the bottom pressure block 123 has a protrusion 1232, which extends into the first hole 1211, the protrusion 1232 has a communicating hole 1231 communicating with the first hole 1211, a welding fitting portion 125 is provided on the inner wall of the protrusion 1232, and the welding section extends Into the communicating hole 1231 of the protrusion 1232, the outer wall of the protrusion 1232 is welded and fixed to the plate portion 121.
  • the drainage tube 133 has an outer expansion portion 1333, the outer expansion portion 1333 does not extend into the valve seat matching portion 132, and the outer expansion portion 1333 cooperates with the bottom end portion 1328 of the valve seat matching portion 132 for restriction. In this way, when the core member 12 is welded, due to the shrinkage of the plate portion 121, through the arrangement of the outer expansion portion 1333, if the drainage tube 133 moves up the valve seat fitting portion 132, it will be affected by the outer expansion portion 1333 and the valve seat fitting portion 132.
  • the bottom is blocked, so that the position where the drainage tube 133 extends into the valve seat fitting portion 132 is determined, and the drainage tube 133 extends into the valve seat fitting portion 132 too deeply, causing the sealing fit between the base section 1111 and the connector 13 It also reduces the impact on the flow path between the base section 1111 and the drainage tube 133.
  • the flange portion 1322 has a limiting groove 1323
  • the first plate 1214a has a limiting protrusion (not shown)
  • the limiting groove 1323 cooperates with the limiting protrusion to prevent the connecting member 13 from moving in the circumferential direction. Contribute to the stability of the structure and the stability of the seal.
  • FIG. 5 shows a schematic diagram of a structure of the heat exchange device 2.
  • the core member 12 has a third plate 1214b and a fourth plate 1215b, the third plate 1214b and the fourth plate 1215b are welded and fixed, the third plate 1214b has a first ring convex portion 1219a, and the fourth plate 1215b has The second annular convex portion 1219b, the first annular convex portion 1219a are provided with a first hole, the second annular convex portion 1219b is provided with a first hole, and the first hole 1211 penetrates the first annular convex portion 1219a and the second annular convex portion 1219b.
  • the annular convex portion 1219a extends into the first hole of the plate adjacent to the third plate 1214b
  • the second annular convex portion 1219b extends into the first hole of the plate adjacent to the fourth plate 1215b
  • the first There is a gap between the annular convex portion 1219a and the wall of the plate adjacent to the third plate 1214b where the first hole is provided
  • the second annular convex portion 1219b and the plate adjacent to the fourth plate 1215b are provided with a first A gap is left between the walls of the hole, so that the fluid can flow through the outer periphery of the first ring convex portion 1219a and enter the inter-plate channel 1212 for heat exchange.
  • the valve core component 11 has a valve seat portion 111, at least part of the valve seat portion 111 is located in the first port 1211, the valve seat portion 111 has a peripheral opening 1113, an orifice 1114, and a bottom opening 1115.
  • the peripheral opening 1113 is connected to the first port 1211. 1211 is in communication, and the bottom opening 1115 is in communication with the communication cavity 138 of the connecting member 13.
  • the valve core part 11 may be a valve core part of an electronic expansion valve.
  • the valve seat 111 has a base section 1111 and a middle section 1112.
  • the base section 1111 has a bottom opening 1115, and the middle section 1112 has a peripheral opening 1113.
  • the middle section 1112 is closer to the core part relative to the base section 1111. 12 ⁇ first side 124.
  • the middle section 1112 is located in the first hole 1211. In this way, the depth of the valve core member 11 assembled to the core member 12 is deeper, which helps to reduce the height of the valve core member 11 protruding from the core member 12, and contributes to a better overall structure. It is small and compact.
  • the first side portion 124 of the core member 12 refers to the side of the core member 12 where the valve core member 11 is provided.
  • At least part of the valve seat portion 111 extends into the first ring convex portion 1219a, the base section 1111 and the first ring convex portion 1219a are sealedly arranged; the base section 1111 is provided with a first groove 1116, and the heat exchange device has a first sealing member 14.
  • the first sealing member 14 is located in the first groove 1116.
  • the first sealing member 14 and the first ring convex portion 1219a are tightly fitted to realize the sealing between the two. In this way, the leakage between the base section 1111 and the first ring convex portion 1219a is effectively prevented .
  • the side of the core member 12 on which the valve core member 11 is located is the upper side, and the middle section 1112 is located above the connecting member 13.
  • the fluid in the core member 12 passes through the throttling and depressurization of the expansion valve and leaves from the peripheral opening 1113, and enters the inter-plate passage 1212 to exchange heat with the fluid in the second flow passage.
  • the throttling and pressure reduction of the refrigerant is completed inside the core part 12, which is smoothly connected with the subsequent heat exchange links, which reduces the gas-liquid stratification of the refrigerant after throttling and pressure reduction due to the pipeline setting. Factors such as influence the heat exchange efficiency of subsequent heat exchange.
  • the connecting member 13 has a first end 134 and a second end 135, and at least a part of the first end 134 is welded and fixed to the second ring protrusion 1219b. Specifically, at least part of the first end 134 extends into the second annular protrusion 1219b, and at least part of the outer wall of the first end 134 is welded and fixed to the inner wall of the second annular protrusion 1219b.
  • a welding ring can be provided.
  • At least part of the second end 135 is welded and fixed to the bottom pressure block 123, and at least part of the second end 135 extends into the position where the bottom pressure block 123 is provided with the first hole.
  • the first end 134 has a first section 1341 and a second section 1342.
  • the first section 1341 of the first end 134 extends into the second annular protrusion 1219b, and the second section 1342 does not extend into the second annular protrusion 1219b.
  • the outer diameter of the second section 1342 is larger than that of the first section 1341, and the outer diameter of the second section 1342 is larger than the inner diameter of the second annular protrusion 1219b.
  • the outer diameter of the second section 1342 may be reduced toward the first section 1341. In this way, when the stacked plates are put into the furnace for welding, the plates will shrink, resulting in a decrease in the height of the stacked core part 12.
  • the second section 1342 is set to cause the plate to shrink during the process of connecting parts.
  • the first end 134 of 13 is difficult to extend into the bottom opening 1115 of the base section 1111, which reduces the impact on the base section 1111 caused by the height change caused by the shrinkage of the connector 13 during the welding process of the core part 12, and helps to lift
  • the fit between the valve core component 11 and the core component 12 is more stable, which also contributes to the sealing performance between the fluid valve core component 11 and the core component 12.
  • the second end 135 of the connecting piece 13 has a welding section 1352 and an adjacent section 1351.
  • the welding section 1352 of the connecting piece 13 is welded to the welding mating portion 125, and the adjacent section 1351 is adjacent to and adjacent to the welding section 1352.
  • the section 1351 is closer to the first end 134 than the welding section 1352, the outer diameter of the welding section 1352 is less than or equal to the inner diameter of the welding mating part 125, and the outer diameter of the adjacent section 1351 is less than or equal to the inner diameter of the welding mating part 125;
  • the connecting piece since the connecting piece has a welding section and an adjacent section, the distance between the end of the welding fitting 125 away from the valve core component 11 and the end of the welding section away from the valve core component 11 is greater than or equal to zero;
  • the welding mating portion 125 can move relative to the connecting piece 13, and the welding sealing performance between the connecting piece 13 and the core component 12 is better.
  • the outer diameter of the adjacent section 1351 can also be greater than or equal to the outer diameter of the welding section 1352, and the welding section 1352 can be reduced in diameter relative to the adjacent section 1351, which is more conducive to the plate part relative to the connecting member 13 during the welding process. Relative movement.
  • the welding section 1352 may also have a first section and a second section.
  • the first section is welded to the welding mating part 125, the second section is adjacent to the first section, and the second section is far away from the first section.
  • the outer diameter of the second section is less than or equal to the inner diameter of the first section; the first section may not be provided corresponding to the welding mating part 125 when the connecting piece 13 is assembled into the core part 12, and the core part When shrinking, the first section moves to the welding mating part 125 and is welded and fixed with the welding mating part 125.
  • FIG. 6 illustrates a schematic cross-sectional view of a structure of the heat exchange device.
  • some reference signs of the following structure may not be shown in FIG. 6, but you can refer to FIG. 2 and FIG. 3.
  • FIG. 6 some reference signs in FIG. 6 are not pointed out below, in order to facilitate understanding and avoid repetition and cumbersomeness, the reference signs of the same parts in the above-mentioned embodiments will also be marked in FIG. 6.
  • the heat exchange device includes at least a first flow channel 101 and a second flow channel.
  • the fluid in the first flow channel 101 can exchange heat with the fluid in the second flow channel; the fluid in the first flow channel 101 can be a refrigerant, and the fluid in the second flow channel can be Coolant.
  • the heat exchange device may also have a third flow path, a fourth flow path, and the like.
  • the heat exchange device 1 includes a valve core member 11, a core member 12, and a connecting member 13.
  • the valve core member 11 and the core member 12 are assembled and fixed, and the connecting member 13 and the core member 12 are fixedly arranged, for example, welded.
  • the valve core component 11 may be, for example, the valve core structure of an expansion valve.
  • the core member 12 has a top pressure block 122, a plate portion 121, and a bottom pressure block 123, and the top pressure block 122, the plate portion 121, and the bottom pressure block 123 are welded and fixed.
  • the plate portion 121 has at least a first channel 1211, a second channel 1213, and an inter-plate channel 1212.
  • the first channel 1211, the inter-plate channel 1212, and the second channel 1213 are in communication with each other.
  • the first flow channel 101 includes a part of the first channel 1211, the second channel Hole 1213, inter-plate channel 1212.
  • the first hole 1211 and the second hole 1213 are the holes when the core part 12 is not equipped with the valve core part 11.
  • the plate portion 121 has a plurality of stacked plates, adjacent plates are welded and fixed, each plate has at least a first hole and a second hole, and the first holes of each plate are aligned along the stacking direction of the plates Setting, the second holes of each plate are aligned.
  • the first hole and the second hole are located near the edge of the plate, so the fluid flowing through the plate can have a longer flow path, which helps to improve the heat exchange efficiency.
  • the first holes of each plate are aligned to form a part of the first channel 1211, and the second holes of each plate are aligned to form a part of the second channel 1213.
  • the top pressure block 122 has a third hole 1221, the third hole 1221 is aligned with the first hole, and the bottom pressure block 123 has a communication hole 1231, and the communication hole 1231 is aligned with the first hole.
  • the heat exchange device includes a communication channel 103 and another communication channel 104.
  • the communication channel 103 communicates with the communication cavity 138 of the connecting member 13, and the other communication channel 104 can communicate with the second channel 1213, so that fluid can enter through the communication channel 103 and pass After the inner cavity of the connecting piece 13 is throttled and adjusted by the valve core member 11, the fluid enters the inter-plate passage 1212 of the core member 12 and the second flow path to exchange heat, the flow path is simple, and the heat exchange efficiency is high.
  • the other communication channel 104 may not directly communicate with the second channel 1213.
  • a pipe is provided in the second channel 1213 and communicates with the other communication channel 104 through the pipe.
  • the other communication channel 104 may not communicate with the inter-plate channel 1212 through the second channel 1213, and the other communication channel 104 may also be provided on the side of the core member 12 where the communication channel 103 is provided, and the other communication channel 104 may be adjacent to the communication channel 103 and not directly communicate with the communication channel 103.
  • At least part of the valve core component 11 extends into the first hole 1211, and at least part of the connecting member 13 extends into the first hole 1211.
  • the valve core component 11 has a valve seat portion 111, at least part of the valve seat portion 111 is located in the first port 1211, the valve seat portion 111 has a peripheral opening 1113, an orifice 1114, and a bottom opening 1115.
  • the peripheral opening 1113 is connected to the first port 1211. 1211 is in communication, and the bottom opening 1115 is in communication with the communication cavity 138 of the connecting member 13.
  • the valve core part 11 may be a valve core part of an electronic expansion valve.
  • the valve seat part 111 has a base section 1111 and a middle section 1112.
  • the base section 1111 has a bottom opening 1115.
  • the middle section 1112 has a peripheral opening 1113.
  • the middle section 1112 is close to the first side 124 of the core member 12 relative to the base section 1111, the middle section 1112 is located at the plate section 121, and the peripheral opening 1113 It communicates with the inter-plate passage 1212. In this way, the depth at which the valve core component 11 is assembled to the core component 12 is deeper, which helps reduce the height of the valve core component 11 protruding from the core component 12, and contributes to a smaller and more compact overall structure.
  • the connecting member 13 has a ring wall portion 131, and the valve seat portion 111 and the ring wall portion 131 are sealed. In the plate stacking direction of the core member 12, the height of the ring wall portion 131 is greater than the height of the base section 1111.
  • the base section 1111 is provided with a first groove 1116
  • the heat exchange device has a first sealing member 14, the first sealing member 14 is located in the first groove 1116, the first sealing member 14 and the ring wall portion 131 are closely matched to realize the sealing between the two In this way, the leakage between the base section 1111 and the ring wall portion 131 is effectively prevented.
  • the connecting member 13 has a side hole 1321, and in the plate stacking direction of the core member 12, the side hole 1321 is closer to the first side portion 124 of the core member 12 than the ring wall portion 131.
  • the side hole 1321 corresponds to the peripheral opening 1113 of the valve core member 11. In this way, the fluid enters from the bottom opening 1115 of the valve core member 11 through the drainage tube 133, enters the first port 1211 through the orifice 1114, the peripheral opening 1113, and the side port 1321, and enters the inter-plate communicating with the first port 1211
  • the channel 1212 exchanges heat with the fluid in the second flow channel.
  • the connecting piece 13 has a flange portion 1322, and the flange portion 1322 is fixed to the core member 12 by welding.
  • the plates of the core member 12 include a first plate 1214a and a second plate 1215a.
  • the first plate 1214a is welded to the second plate 1215a, and the top or bottom of the flange 1322 is welded to the first plate 1214a. Or the top or bottom of the flange portion 1322 and the second plate 1215a are welded and fixed.
  • the core member 12 has a pressing block 122.
  • the flange portion 1322 and the pressing block 122 are welded and fixed.
  • the flange portion 1322 can limit and fix the connecting piece 13 and the plate portion 121.
  • the plate portion 121 is contracted during the welding process, Since the flange portion 1322 is welded and fixed to the pressing block 122 of the core member 12, the position of the connector 13 in the core member 12 can be ensured, and the position of the connector 13 after the shrinkage of the plate is reduced, and the connector is lowered. There is a risk of fluid leakage between 13 and the valve seat 111.
  • the core member 12 has a bottom pressure block 123, a part of the connecting piece 13 extends into the bottom pressure block 123, the bottom pressure block 123 has a welding fitting portion 125, a second end 135 extends into the welding fitting portion 125, and the second end 135 is connected to the The bottom pressing block 123 is welded and fixed.
  • the bottom pressure block 123 has a communication hole 1231 communicating with the first channel 1211.
  • the welding fitting 125 is provided on the inner wall of the bottom pressure block 123 where the communication hole 1231 is provided.
  • the second end 135 extends into the communication hole 1231.
  • the bottom pressure block The thickness of 123 is greater than the thickness of 5 plates. In this way, during the welding process of the core member 12, the bottom pressure block 123 can be matched and welded with the outer wall of the connecting member 13 to ensure the tightness.
  • the second end 135 of the connecting piece 13 has a welding section 1352 and an adjacent section 1351.
  • the welding section 1352 of the connecting piece 13 is welded to the welding mating portion 125.
  • the adjacent section 1351 is adjacent to the welding section 1352, and the adjacent section 1351 is opposite to each other.
  • the welding section 1352 is close to the first end 134, the outer diameter of the welding section 1352 is less than or equal to the inner diameter of the welding mating part 125, and the outer diameter of the adjacent section 1351 is less than or equal to the inner diameter of the welding mating part 125; the core part is in the welding process
  • shrinkage occurs, since the connecting piece has a welded section and an adjacent section, the distance between the end of the welded mating part away from the valve core member and the end of the welded section away from the valve core member is greater than or equal to zero; making the core member in the process of welding shrinkage ,
  • the welding mating part can move relative to the connecting piece, and the welding sealing performance of the connecting piece and the core part is better.
  • the outer diameter of the adjacent section 1351 can also be greater than or equal to the outer diameter of the welding section 1352, and the welding section 1352 can be reduced in diameter relative to the adjacent section 1351, which is more conducive to the relative connection of the plate portion to the connecting piece during the welding process. sports.
  • FIG. 7 illustrates a schematic cross-sectional view of another embodiment of the heat exchange device.
  • the core member 12 has a fifth plate 1214c, and the fifth plate 1214c has an extension part 1217.
  • the extension part 1217 is welded and fixed to the outer wall of the connector 13, and the core part 12 is assembled with the valve core part 11 as the upper part, and the extension part 1217 is located Below the middle section 1112.
  • the first channel 1211 has a first sub-channel 1211a and a second sub-channel 1211b, and the extension part 1217 is welded to the outer wall of the connecting member 13 to securely separate the first sub-channel 1211a and the second sub-channel 1211b.
  • the core member 12 has a sixth plate 1215c.
  • the sixth plate 1215c has a blocking portion 1218.
  • the blocking portion 1218 is located at the position of the second channel 1213.
  • the second channel 1213 includes a third sub-channel 1213a and a fourth sub-channel 1213b. 1218 separates the third sub-channel 1213a and the fourth sub-channel 1213b.
  • the inter-plate passage 1212 has a first route 1212a, a second route 1212b, and a third route 1212c.
  • the first route 1212a and the second route 1212b flow in opposite directions, and the second route 1212b and the third route 1212c flow in opposite directions;
  • the tunnel 1211b, the third route 1212c, and the other communication channel 104 is a third route 1212c, and the other communication channel 104.
  • the fluid After the fluid enters the heat exchange device, it can not only achieve throttling and pressure reduction, but also the fluid entering the inter-plate passage 1212 from the peripheral opening 1113 can directly exchange heat with the fluid in the adjacent inter-plate passage 1212, and both throttling and heat exchange can be performed. Finishing inside the core part 12 is not only conducive to the stable phase state of the fluid, but also conducive to improving the heat exchange efficiency.
  • the second end 135 of the connecting piece 13 has a welding section 1352 and an adjacent section 1351.
  • the welding section 1352 of the connecting piece 13 is welded to the welding mating portion 125.
  • the adjacent section 1351 is adjacent to the welding section 1352, and the adjacent section 1351 is opposite to each other.
  • the welding section 1352 is close to the first end 134, the outer diameter of the welding section 1352 is less than or equal to the inner diameter of the welding mating part 125, and the outer diameter of the adjacent section 1351 is less than or equal to the inner diameter of the welding mating part 125; the core part is in the welding process
  • shrinkage occurs, since the connecting piece has a welded section and an adjacent section, the distance between the end of the welded mating part away from the valve core member and the end of the welded section away from the valve core member is greater than or equal to zero; making the core member in the process of welding shrinkage ,
  • the welding mating part can move relative to the connecting piece, and the welding sealing performance of the connecting piece and the core part is better.
  • the outer diameter of the adjacent section 1351 can also be greater than or equal to the outer diameter of the welding section 1352, and the welding section 1352 can be reduced in diameter relative to the adjacent section 1351, which is more conducive to the relative connection of the plate portion to the connecting piece during the welding process. sports.
  • the thickness of the welding mating part is greater than the thickness of at least two plates; the thickness of the welding mating part can also be greater than the thickness of five plates.
  • the welding section 1352 may also have a first section and a second section.
  • the first section is welded to the welding mating part 125, the second section is adjacent to the first section, and the second section is far away from the first section.
  • the outer diameter of the second section is less than or equal to the inner diameter of the first section; the first section may not be provided corresponding to the welding mating part 125 when the connecting piece 13 is assembled into the core part 12, and the core part When shrinking, the first section moves to the welding mating part 125 and is welded and fixed with the welding mating part 125.
  • extension portion 1217 can be integrally stamped and formed with the fifth plate, or can be formed by welding with the fifth plate.
  • the connecting member may also protrude integrally from the extension portion, or be welded and fixed with the extension portion.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

一种热交换装置，包括阀芯部件、芯体部件、连接件，连接件具有第一端部、第二端部，连接件的第一端部位于所述第一孔道，所述连接件的第二端部具有焊接段和相邻段，所述芯体部件具有焊接配合部，所述连接件的焊接段与所述焊接配合部焊接，所述相邻段与所述焊接段相邻，所述焊接段的外径小于或等于所述焊接配合部的内径，所述相邻段的外径小于或等于所述焊接配合部的内径；所述焊接配合部远离所述阀芯部件的一端与所述焊接段远离所述阀芯部件的一端之间的距离大于等于零。该热交换装置密封性较好。

Description

热交换装置
本申请要求于2020年04月30日提交中国专利局、申请号为202010362743.9、发明名称为“热交换装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及热管理技术领域，尤其涉及一种热交换装置。
背景技术
热管理系统会包括带有制冷剂的回路，在热管理系统中，需要换热器和膨胀阀这两个部件，这两个部件在热管理系统中一般是以管路连接的方式连接。
换热器的各零部件是通过焊接固定的，在焊接过程中会因为焊料的融化等原因会引起换热器焊接后高度收缩的情况，因此，在一种换热器与膨胀阀的集成中，膨胀阀的阀体会与换热器的安装板固定。
发明内容
本发明的目的在于提供一种密封性较好的热交换装置。
本申请的一个实施方式提供一种热交换装置，包括阀芯部件、芯体部件，所述阀芯部件与所述芯体部件固定设置；
所述芯体部件具有板片部，所述板片部具有多个板片，所述板片部至少具有第一孔道、第二孔道、板间通道，所述第一孔道、板间通道、第二孔道连通；
所述热交换装置包括连接件，所述连接件具有第一端部、第二端部，所述第一端部位于所述第一孔道，所述第二端部具有焊接段和相邻段，所述芯体部件具有焊接配合部，所述焊接段与所述焊接配合部焊接，所述相邻段与所述焊接段相邻，所述焊接段的外径小于或等于所述焊接配合部的内径，所述相邻段的外径小于或等于所述焊接配合部的内径；所述焊接配合部远离所述阀芯部件的一端与所述焊接段远离所述阀芯部件的一端之间的距离大于等于零；
所述阀芯部件具有阀座部，所述阀座部具有底部开口、节流孔、周部开口，所述节流孔能连通所述周部开口和所述底部开口，且所述周部开口与所述第一孔道位于所述连接件外的部分连通；所述连接件具有连通腔，所述底部开口与所述连接件的连通腔连通。
本申请的上述技术方案包括连接件，连接件的焊接段与焊接配合部焊接，相邻段与焊接段相邻，焊接段的外径小于或等于焊接配合部的内径，相邻段的外径小于或等于焊接配合部的内径；如此，在芯体部件处于焊接过程出现收缩情况时，由于连接件具有焊接段和相邻段，焊接配合部远离阀芯部件的一端与焊接段远离阀芯部件的一端之间的距离大于等于零；使得芯体部件在焊接收缩过程中，焊接配合部相对连接件可相对移动，连接件与芯体部件的焊接密封性较好。
附图说明
图1为热交换装置的一种实施方式的结构示意图；
图2为图1的剖面示意图；
图3为图1的立体分解示意图；
图4为热交换装置的第二种实施方式的剖面示意图；
图5为图4所示意的热交换装置的立体分解示意图；
图6为热交换装置的另一种实施方式的剖面示意图；
图7为热交换装置的又一种实施方式的剖面示意图。
具体实施方式
参照图1-图3，图1示意出本发明第一种热交换装置1的立体结构示意图。
热交换装置1至少包括第一流道101和第二流道，第一流道101内流体可以与第二流道内流体进行热交换；第一流道101内流体可以为制冷剂，第二流道内流体可以为冷却液。热交换装置1还可以具有第三流道、第四流道等。
热交换装置1包括阀芯部件11、芯体部件12、连接件13，阀芯部件11和芯体部件12组装固定，连接件13与芯体部件12固定设置，例如焊接设置。阀芯部件11例如可以是膨胀阀的阀芯结构。
芯体部件12具有顶压块122、板片部121、底压块123，顶压块122、板片部121、底压块123焊接固定。板片部121至少具有第一孔道1211、 第二孔道1213、板间通道1212，第一孔道1211、板间通道1212、第二孔道1213连通，第一流道101包括部分第一孔道1211、第二孔道1213、板间通道1212。
在本文中，第一孔道1211、第二孔道1213是芯体部件12未装配有阀芯部件11时的孔道。在第一孔道1211、第二孔道1213装配有阀芯部件或连接件后，即使存在部件或零件位于其他部件内，只要该部件所在的位置是芯体部件的第一孔道、第二孔道，本文仍做该部件或零件位于第一孔道或第二孔道之意。
板片部121具有多个堆叠设置的板片，相邻各板片焊接固定，各板片至少具有第一孔和第二孔，沿着板片的堆叠方向，各板片的第一孔对齐设置，各板片的第二孔对齐设置。第一孔、第二孔位于板片的邻近边缘位置，如此流经板片的流体可以具有较长的流动路线，有助于提高换热效率。各板片的第一孔对齐形成第一孔道1211的一部分，各板片的第二孔对齐形成第二孔道1213的一部分。
顶压块122具有第三孔1221，第三孔1221与第一孔对齐，这里的对齐包括第一孔的轴线与第三孔的轴线同轴或者二者的轴线平行；底压块123具有连通孔1231，连通孔1231与第一孔对齐，这里的对齐包括第一孔的轴线与第三孔的轴线同轴或者二者的轴线平行。
热交换装置1包括连通通道103、另一连通通道104，连通通道103与连接件13的连通腔138连通，另一连通通道104可以与第二孔道1213连通，如此流体可以从连通通道103进入，通过连接件13内腔，经阀芯部件11节流调节后，进入第一孔道后再进入芯体部件12的板间通道1212， 流体在板间通道1212和第二流道流体换热，流路简单，换热效率高。当然，在其他情况下，另一连通通道104也可以不直接与第二孔道1213连通，例如在第二孔道1213内设置管件，通过管件与另一连通通道104连通。在其他情况下，另一连通通道104也可以不通过第二孔道1213与板间通道1212连通，另一连通通道104、连通通道103也可以设置于芯体部件12的同一侧，另一连通通道104可以邻近连通通道103，且与连通通道103不直接连通。
芯体部件12具有第一侧部124和第二侧部126，阀芯部件11的至少部分位于第一侧部124所在一侧，或者说，其中芯体部件12的第一侧部124是指芯体部件12设置阀芯部件11的一侧。连通通道103位于第二侧部126所在一侧，连通通道103与连通腔138连通。例如阀芯部件11包括线圈部1120，线圈部1120位于第一侧部124所在一侧。
阀芯部件11的至少部分伸入第一孔道1211，连接件13的至少部分伸入第一孔道1211。
阀芯部件11具有阀座部111，阀座部111的至少部分位于第一孔道1211，阀座部111具有周部开口1113、节流孔1114和底部开口1115，周部开口1113与第一孔道1211连通，并与板间通道1212连通，连接件13具有连通腔138，连接件13的一端位于第一孔道1211，底部开口1115与连接件13的连通腔138连通，连通腔138不与第一孔道1211直接连通。阀芯部件11可以是电子膨胀阀的阀芯部分。如此，流体从连接件13的连通腔138可经底部开口1115、节流孔1114、周部开口1113、第一孔道1211进入板间通道1212，如此流体可在板片部121内部与相邻板片间的流体进 行热交换。周部开口1113可直接与第一孔道1211连通，也可以直接与板间通道1212连通。
本文中，连通腔138不与第一孔道1211直接连通不排除两者之间通过其他部件设置的流道转接连通。
连接件13具有环壁部131，阀座部111与环壁部131密封设置，密封形式例如可以为径向密封或轴向密封等。
阀座部111具有底座段1111和中部段1112，底座段1111具有底部开口1115，底座段1111位于连接件13内部，底座段1111的周侧与连接件13的环壁部131密封设置。中部段1112具有周部开口1113，在芯体部件12的堆叠方向，中部段1112相对底座段1111靠近芯体部件12的第一侧部124，中部段1112位于板片部121，周部开口1113与板间通道1212连通。如此，阀芯部件11组装到芯体部件12的深度较深，有助于降低阀芯部件11凸出于芯体部件12的高度，有助于整体结构更为小巧紧凑。当阀芯部件处于打开状态时，连通通道103、连通腔138、底部开口1115、节流孔1114、周部开口1113、第一孔道1211、板间通道1212、第二孔道1213连通。
应注意，本文中底座段、中部段仅做名称区别定义，不做结构限定。
连接件13具有阀座配合部132和引流管133，阀座配合部132和引流管133固定设置，例如可以通过焊接固定，也可以通过压铆等其他固定方式。阀座配合部132设置环壁部131，在芯体部件12的板片堆叠方向，环壁部131的高度大于底座段1111的高度。底座段1111设置有第一凹槽1116，热交换装置1具有第一密封件14，第一密封件14位于第一凹槽1116， 第一密封件14与环壁部131相抵紧密配合实现两者的密封，如此，有效防止底座段1111与环壁部131之间的泄漏。
阀座配合部132具有侧部孔1321，在芯体部件12的板片堆叠方向，侧部孔1321相对环壁部131更为靠近芯体部件12的第一侧部124。侧部孔1321与阀芯部件11的周部开口1113相对应。如此，流体经引流管133从阀芯部件11的底部开口1115进入，经节流孔1114、周部开口1113、侧部孔1321进入第一孔道1211，并进入与第一孔道1211连通的板间通道1212与第二流道内流体进行换热。制冷剂的节流降压在芯体部件12内部完成，与后续热交换环节衔接很流畅，降低了因管路设置使得节流降压后的制冷剂在较长的管路中气液分层等因素影响后续热交换的换热效率。
连接件13与芯体部件12焊接固定，芯体部件12具有焊接配合部125，焊接配合部125与连接件13焊接固定，沿着第一孔道1211的延伸方向，焊接配合部125的厚度大于至少两个板片叠加的厚度；如此，在芯体部件12的焊接收缩过程中，由于焊接配合部125具有大于两个板片叠加的厚度，连接件13可以在焊接过程中与焊接配合部125焊接良好，有利于密封性的稳定。
连接件13具有第一端部134和第二端部135，第一端部134位于第一孔道1211，连接件13的第二端部135具有焊接段1352和相邻段1351，连接件13的焊接段1352与焊接配合部125焊接，相邻段1351与焊接段1352相邻，且相邻段1351相对焊接段1352靠近第一端部134，焊接段1352的外径小于或等于焊接配合部125的内径，相邻段1351的外径小于或等于焊接配合部125的内径；在芯体部件处于焊接过程出现收缩情况时，由于连 接件具有焊接段和相邻段，焊接配合部远离阀芯部件的一端与焊接段远离阀芯部件的一端之间的距离大于等于零；使得芯体部件在焊接收缩过程中，焊接配合部相对连接件可相对移动，连接件与芯体部件的焊接密封性较好。另外，相邻段1351的外径还可以大于或等于焊接段1352的外径，焊接段1352可以相对相邻段1351以缩径的方式，更有利于焊接过程中板片部相对连接件的相对运动。
阀座配合部132具有凸缘部1322，凸缘部1322与芯体部件12焊接固定。芯体部件12的板片包括第一板片1214a和第二板片1215a，第一板片1214a与第二板片1215a焊接固定，凸缘部1322的顶部或底部与第一板片1214a焊接固定；或者凸缘部1322的顶部或底部与第二板片1215a焊接固定。
芯体部件12具有顶压块122，凸缘部1322与顶压块122焊接固定，阀芯部件11的阀座部111从顶压块122的第三孔1221伸入。通过凸缘部1322可以限位固定阀座配合部132和板片部121，在板片部121焊接过程收缩时，由于凸缘部1322与芯体部件12的顶压块122焊接固定，能够确保阀座配合部132在芯体部件12中的位置的确定性，降低板片收缩后影响阀座配合部132的位置，降低阀座配合部132与阀座之间的流体泄露风险。
芯体部件12具有底压块123，连接件13的一部分伸入底压块123，底压块123具有焊接配合部125，焊接段1352位于底压块123，焊接段1352位于焊接配合部125，焊接段1352与底压块123焊接固定，第一端部134与芯体部件12焊接固定。如此，连接件13可以在芯体部件焊接过程中，与芯体部件一起焊接固定，可以一次焊接完成，加工方便。
阀座配合部132具有底端部1328，引流管133与底端部1328焊接固定，引流管133的部分伸入阀座配合部132；引流管133具有第一部分1331和第二部分1332，第一部分1331的至少部分伸入阀座配合部132，第一部分1331的至少部分和阀座配合部132焊接固定。连接件13的第二端部设置于引流管133的第二部分，引流管133的第二部分1332的部分位于焊接配合部125，与焊接配合部125焊接固定。
底压块123具有凸起1232，凸起1232伸入到第一孔道1211，凸起1232具有与第一孔道1211连通的连通孔1231，焊接配合部125设置于凸起1232的内壁，焊接段伸入到凸起1232的连通孔1231，凸起1232的外壁与板片部121焊接固定。
引流管133具有外扩部1333，外扩部1333未伸入阀座配合部132，外扩部1333与阀座配合部132的底端部1328配合限制。如此，芯体部件12焊接时，由于板片部121会有收缩，通过外扩部1333的设置，引流管133如果向阀座配合部132上移会受到外扩部1333与阀座配合部132底部的阻挡，使得引流管133伸入阀座配合部132的位置是确定的，降低了引流管133伸入到阀座配合部132内部过深引起底座段1111与连接件13之间的密封配合的风险性，以及降低了对底座段1111与引流管133之间的流道的影响。
更进一步，凸缘部1322具有限位槽1323，第一板片1214a具有限位凸起(未示出)，限位槽1323与限位凸起配合，能防止连接件13在周向上移动，有助于结构的稳定和密封性的稳定。
参照图4、图5，图4、图5示意出热交换装置2的一种结构示意图。 图4上有些附图标记虽在下文未指出，但为便于理解和避免重复累赘，在上述实施方式中同样的零件的附图标记也会标记在图4中。
芯体部件12具有第三板片1214b和第四板片1215b，第三板片1214b和第四板片1215b焊接固定，第三板片1214b具有第一环凸部1219a，第四板片1215b具有第二环凸部1219b，第一环凸部1219a设置第一孔，第二环凸部1219b设置第一孔，第一孔道1211贯穿第一环凸部1219a和第二环凸部1219b，第一环凸部1219a伸入到与第三板片1214b相邻的板片的第一孔，第二环凸部1219b伸入到与第四板片1215b相邻的板片的第一孔，第一环凸部1219a与和第三板片1214b相邻的板片设置第一孔的壁部之间留有空隙，第二环凸部1219b与和第四板片1215b相邻的板片设置第一孔的壁部之间留有空隙，如此，流体可流过第一环凸部1219a外周，并进入板间通道1212进行热交换。
阀芯部件11具有阀座部111，阀座部111的至少部分位于第一孔道1211，阀座部111具有周部开口1113、节流孔1114和底部开口1115，周部开口1113与第一孔道1211连通，底部开口1115与连接件13的连通腔138连通。阀芯部件11可以是电子膨胀阀的阀芯部分。
阀座部111具有底座段1111和中部段1112，底座段1111具有底部开口1115，中部段1112具有周部开口1113，在芯体部件12的堆叠方向，中部段1112相对底座段1111靠近芯体部件12的第一侧部124。中部段1112位于第一孔道1211，如此，阀芯部件11组装到芯体部件12的深度较深，有助于降低阀芯部件11凸出于芯体部件12的高度，有助于整体结构更为小巧紧凑。其中芯体部件12的第一侧部124是指芯体部件12设置阀芯部 件11的一侧。
阀座部111的至少部分伸入第一环凸部1219a，底座段1111与第一环凸部1219a密封设置；底座段1111设置有第一凹槽1116，热交换装置具有第一密封件14，第一密封件14位于第一凹槽1116，第一密封件14与第一环凸部1219a紧密配合实现两者的密封，如此，有效防止底座段1111与第一环凸部1219a之间的泄漏。
以芯体部件12设置阀芯部件11的一侧为上方，中部段1112位于连接件13上方；流体从底部开口1115进入后，经节流孔1114后，从周部开口1113流出，使得刚进入芯体部件12的流体经过膨胀阀的节流降压后从周部开口1113离开，进入到板间通道1212与第二流道的流体进行热交换。制冷剂的节流降压在芯体部件12内部完成，与后续热交换环节衔接很流畅，降低了因管路设置使得节流降压后的制冷剂在较长的管路中气液分层等因素影响后续热交换的换热效率。
连接件13具有第一端部134和第二端部135，第一端部134的至少部分与第二环凸部1219b焊接固定。具体的，第一端部134的至少部分伸入第二环凸部1219b，第一端部134的至少部分外壁与第二环凸部1219b内壁焊接固定。焊接时，例如可通过设置焊环的方式。
第二端部135的至少部分与底压块123焊接固定，第二端部135的至少部分伸入底压块123设置第一孔的位置。
第一端部134具有第一段1341和第二段1342，第一端部134的第一段1341伸入第二环凸部1219b，第二段1342未伸入第二环凸部1219b，第二段1342的外径大于第一段1341，第二段1342的外径大于第二环凸部 1219b的内径，例如第二段1342的外径可以朝向第一段1341缩径的方式。如此，当叠装好的板片进炉焊接时，板片会有收缩，导致叠装好的芯体部件12高度降低，此时通过第二段1342的设置，使得板片收缩过程，连接件13的第一端部134难以伸入底座段1111的底部开口1115，降低连接件13在芯体部件12焊接过程中因收缩引起高度的变化而引起的对底座段1111的影响，有助于提升阀芯部件11与芯体部件12之间的配合更为稳定，也有助于流体阀芯部件11与芯体部件12之间的密封性。
另外的，连接件13的第二端部135具有焊接段1352和相邻段1351，连接件13的焊接段1352与焊接配合部125焊接，相邻段1351与焊接段1352相邻，且相邻段1351相对焊接段1352靠近第一端部134，焊接段1352的外径小于或等于焊接配合部125的内径，相邻段1351的外径小于或等于焊接配合部125的内径；在芯体部件处于焊接过程出现收缩情况时，由于连接件具有焊接段和相邻段，焊接配合部125远离阀芯部件11的一端与焊接段远离阀芯部件11的一端之间的距离大于等于零；使得芯体部件12在焊接收缩过程中，焊接配合部125相对连接件13可相对移动，连接件13与芯体部件12的焊接密封性较好。另外，相邻段1351的外径还可以大于或等于焊接段1352的外径，焊接段1352可以相对相邻段1351以缩径的方式，更有利于焊接过程中板片部相对连接件13的相对运动。
焊接段1352还可以具有第一区段和第二区段，第一区段与焊接配合部125焊接，第二区段与第一区段相邻，且第二区段相对第一区段远离第一端部，第二区段的外径小于或等于第一区段的内径；第一区段在连接件13装配入芯体部件12中时可以不与焊接配合部125对应设置，在芯体部件收 缩时，第一区段向焊接配合部125移动，并与焊接配合部125焊接固定。
参照图6，图6示意出热交换装置的一种结构剖面示意图。为更为清楚表示结构，以下结构一些附图标记可能未在图6中示意，但可以参照图2和图3。图6上有些附图标记虽在下文未指出，但为便于理解和避免重复累赘，在上述实施方式中同样的零件的附图标记也会标记在图6中。
热交换装置至少包括第一流道101和第二流道，第一流道101内流体可以与第二流道内流体进行热交换；第一流道101内流体可以为制冷剂，第二流道内流体可以为冷却液。热交换装置还可以具有第三流道、第四流道等。
热交换装置1包括阀芯部件11、芯体部件12、连接件13，阀芯部件11和芯体部件12组装固定，连接件13与芯体部件12固定设置，例如焊接设置。阀芯部件11例如可以是膨胀阀的阀芯结构。
芯体部件12具有顶压块122、板片部121、底压块123，顶压块122、板片部121、底压块123焊接固定。板片部121至少具有第一孔道1211、第二孔道1213、板间通道1212，第一孔道1211、板间通道1212、第二孔道1213连通，第一流道101包括部分第一孔道1211、第二孔道1213、板间通道1212。第一孔道1211、第二孔道1213是芯体部件12未装配有阀芯部件11时的孔道。
板片部121具有多个堆叠设置的板片，相邻各板片焊接固定，各板片至少具有第一孔和第二孔，沿着板片的堆叠方向，各板片的第一孔对齐设置，各板片的第二孔对齐设置。第一孔、第二孔位于板片的邻近边缘位置，如此流经板片的流体可以具有较长的流动路线，有助于提高换热效率。各 板片的第一孔对齐形成第一孔道1211的一部分，各板片的第二孔对齐形成第二孔道1213的一部分。
顶压块122具有第三孔1221，第三孔1221与第一孔对齐，底压块123具有连通孔1231，连通孔1231与第一孔对齐。
热交换装置包括连通通道103、另一连通通道104，连通通道103与连接件13的连通腔138连通，另一连通通道104可以与第二孔道1213连通，如此流体可以从连通通道103进入，通过连接件13内腔，经阀芯部件11节流调节后，进入芯体部件12的板间通道1212和第二流道流体换热，流路简单，换热效率高。当然，在其他情况下，另一连通通道104也可以不直接与第二孔道1213连通，例如在第二孔道1213内设置管件，通过管件与另一连通通道104连通。在其他情况下，另一连通通道104也可以不通过第二孔道1213与板间通道1212连通，另一连通通道104也可以设置于芯体部件12设置连通通道103的一侧，另一连通通道104可以邻近连通通道103，且与连通通道103不直接连通。
阀芯部件11的至少部分伸入第一孔道1211，连接件13的至少部分伸入第一孔道1211。
阀芯部件11具有阀座部111，阀座部111的至少部分位于第一孔道1211，阀座部111具有周部开口1113、节流孔1114和底部开口1115，周部开口1113与第一孔道1211连通，底部开口1115与连接件13的连通腔138连通。阀芯部件11可以是电子膨胀阀的阀芯部分。
阀座部111具有底座段1111和中部段1112，底座段1111具有底部开口1115，底座段1111位于连接件13内部，底座段1111的周侧与连接件 13的环壁部131密封设置。中部段1112具有周部开口1113，在芯体部件12的堆叠方向，中部段1112相对底座段1111靠近芯体部件12的第一侧部124，中部段1112位于板片部121，周部开口1113与板间通道1212连通。如此，阀芯部件11组装到芯体部件12的深度较深，有助于降低阀芯部件11凸出于芯体部件12的高度，有助于整体结构更为小巧紧凑。
连接件13具有环壁部131，阀座部111与环壁部131密封设置。在芯体部件12的板片堆叠方向，环壁部131的高度大于底座段1111的高度。底座段1111设置有第一凹槽1116，热交换装置具有第一密封件14，第一密封件14位于第一凹槽1116，第一密封件14与环壁部131紧密配合实现两者的密封，如此，有效防止底座段1111与环壁部131之间的泄漏。
连接件13具有侧部孔1321，在芯体部件12的板片堆叠方向，侧部孔1321相对环壁部131更为靠近芯体部件12的第一侧部124。侧部孔1321与阀芯部件11的周部开口1113相对应。如此，流体经引流管133从阀芯部件11的底部开口1115进入，经节流孔1114、周部开口1113、侧部孔1321进入第一孔道1211，并进入与第一孔道1211连通的板间通道1212与第二流道内流体进行换热。
连接件13具有凸缘部1322，凸缘部1322与芯体部件12焊接固定。芯体部件12的板片包括第一板片1214a和第二板片1215a，第一板片1214a与第二板片1215a焊接固定，凸缘部1322的顶部或底部与第一板片1214a焊接固定；或者凸缘部1322的顶部或底部与第二板片1215a焊接固定。
芯体部件12具有顶压块122，凸缘部1322与顶压块122焊接固定，通过凸缘部1322可以限位固定连接件13和板片部121，在板片部121焊 接过程收缩时，由于凸缘部1322与芯体部件12的顶压块122焊接固定，能够确保连接件13在芯体部件12中的位置的确定性，降低板片收缩后影响连接件13的位置，降低连接件13与阀座部111之间的流体泄露风险。
芯体部件12具有底压块123，连接件13的一部分伸入底压块123，底压块123具有焊接配合部125，第二端部135伸入焊接配合部125，第二端部135与底压块123焊接固定。
底压块123具有与第一孔道1211连通的连通孔1231，焊接配合部125设置于底压块123设置连通孔1231的内壁，第二端部135的部分伸入到连通孔1231，底压块123的厚度大于5个板片的厚度。如此，在芯体部件12的焊接过程中，底压块123可以与连接件13的外壁配合焊接，保证密封性。
连接件13的第二端部135具有焊接段1352和相邻段1351，连接件13的焊接段1352与焊接配合部125焊接，相邻段1351与焊接段1352相邻，且相邻段1351相对焊接段1352靠近第一端部134，焊接段1352的外径小于或等于焊接配合部125的内径，相邻段1351的外径小于或等于焊接配合部125的内径；在芯体部件处于焊接过程出现收缩情况时，由于连接件具有焊接段和相邻段，焊接配合部远离阀芯部件的一端与焊接段远离阀芯部件的一端之间的距离大于等于零；使得芯体部件在焊接收缩过程中，焊接配合部相对连接件可相对移动，连接件与芯体部件的焊接密封性较好。另外，相邻段1351的外径还可以大于或等于焊接段1352的外径，焊接段1352可以相对相邻段1351以缩径的方式，更有利于焊接过程中板片部相对连接件的相对运动。
参照图7，图7示意出热交换装置的另一种实施方式的剖面示意图。热交换装置的大体结构参照图6所示热交换装置，图7上有些附图标记虽在下文未指出，但为便于理解和避免重复累赘，在上述实施方式中同样的零件的附图标记也会标记在图7中。芯体部件12具有第五板片1214c，第五板片1214c具有延伸部1217，延伸部1217与连接件13的外壁焊接固定，以芯体部件12装配阀芯部件11为上，延伸部1217位于中部段1112下方。
第一孔道1211具有第一子孔道1211a和第二子孔道1211b，延伸部1217与连接件13的外壁焊接固定分隔第一子孔道1211a和第二子孔道1211b。
芯体部件12具有第六板片1215c，第六板片1215c具有阻挡部1218，阻挡部1218位于第二孔道1213位置，第二孔道1213包括第三子孔道1213a和第四子孔道1213b，阻挡部1218分隔第三子孔道1213a和第四子孔道1213b。
板间通道1212具有第一路线1212a、第二路线1212b和第三路线1212c，其中第一路线1212a与第二路线1212b流向相反，第二路线1212b与第三路线1212c流向相反；如此，流体经连通通道103进入连接件13后，从底部开口1115进入，经节流孔1114、周部开口1113进入第一子孔道1211a、第一路线1212a、第三子孔道1213a、第二路线1212b、第二子孔道1211b、第三路线1212c、另一连通通道104。流体进入热交换装置后不仅能实现节流降压，而且从周部开口1113进入板间通道1212的流体还可直接与相邻板间通道1212的流体进行热交换，节流和换热都可以在芯体部件12的内部完成，不仅有利于流体的相态稳定，而且有利于提升换热效 率。
连接件13的第二端部135具有焊接段1352和相邻段1351，连接件13的焊接段1352与焊接配合部125焊接，相邻段1351与焊接段1352相邻，且相邻段1351相对焊接段1352靠近第一端部134，焊接段1352的外径小于或等于焊接配合部125的内径，相邻段1351的外径小于或等于焊接配合部125的内径；在芯体部件处于焊接过程出现收缩情况时，由于连接件具有焊接段和相邻段，焊接配合部远离阀芯部件的一端与焊接段远离阀芯部件的一端之间的距离大于等于零；使得芯体部件在焊接收缩过程中，焊接配合部相对连接件可相对移动，连接件与芯体部件的焊接密封性较好。另外，相邻段1351的外径还可以大于或等于焊接段1352的外径，焊接段1352可以相对相邻段1351以缩径的方式，更有利于焊接过程中板片部相对连接件的相对运动。
沿着第一孔道的延伸方向，焊接配合部的厚度大于至少两个板片叠加的厚度；焊接配合部的厚度还可以大于5个板片叠加的厚度。
焊接段1352还可以具有第一区段和第二区段，第一区段与焊接配合部125焊接，第二区段与第一区段相邻，且第二区段相对第一区段远离第一端部，第二区段的外径小于或等于第一区段的内径；第一区段在连接件13装配入芯体部件12中时可以不与焊接配合部125对应设置，在芯体部件收缩时，第一区段向焊接配合部125移动，并与焊接配合部125焊接固定。
应注意，以上仅作为例示，延伸部1217可以与第五板片一体冲压形成，也可以与第五板片焊接形成。当然，作为其他实施方式，连接件也可以一体凸伸出延伸部，或者焊接固定有延伸部。
需要说明的是：以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，例如对“前”、“后”、“左”、“右”、“上”、“下”等方向性的界定，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行相互组合、修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (10)

  1. 一种热交换装置，包括阀芯部件、芯体部件，所述阀芯部件与所述芯体部件固定设置；
    所述芯体部件具有板片部，所述板片部具有多个板片，所述板片部至少具有第一孔道、第二孔道、板间通道，所述第一孔道、板间通道、第二孔道连通；
    所述热交换装置包括连接件，所述连接件具有第一端部、第二端部，所述第一端部位于所述第一孔道，所述第二端部具有焊接段和相邻段，所述芯体部件具有焊接配合部，所述焊接段与所述焊接配合部焊接，所述相邻段与所述焊接段相邻，所述焊接段的外径小于或等于所述焊接配合部的内径，所述相邻段的外径小于或等于所述焊接配合部的内径；所述焊接配合部远离所述阀芯部件的一端与所述焊接段远离所述阀芯部件的一端之间的距离大于等于零；
    所述阀芯部件具有阀座部，所述阀座部具有底部开口、节流孔、周部开口，所述节流孔能连通所述周部开口和所述底部开口，且所述周部开口与所述第一孔道连通；所述连接件具有连通腔，所述底部开口与所述连接件的连通腔连通。
  2. 根据权利要求1所述的热交换装置，其特征在于：
    沿着所述第一孔道的延伸方向，所述焊接配合部的厚度大于至少两个板片叠加的厚度；
    所述芯体部件具有底压块，所述底压块具有所述焊接配合部，所述连接件的焊接段位于所述底压块内，所述第一端部与所述芯体部件焊接固定， 所述焊接段与所述底压块焊接固定。
  3. 根据权利要求2所述的热交换装置，其特征在于：所述底压块具有凸起，所述凸起伸入到第一孔道，所述凸起具有连通孔，所述焊接配合部设置于所述凸起的内壁，至少部分所述第二端部位于所述凸起的连通孔，所述凸起的外壁与所述板片部焊接固定。
  4. 根据权利要求2所述的热交换装置，其特征在于：所述底压块具有与所述第一孔道连通的连通孔，所述焊接配合部设置于所述底压块设置所述连通孔的内壁，至少部分所述第二端部位于所述连通孔，所述焊接配合部的厚度大于5个板片的厚度。
  5. 根据权利要求1-4中任一项所述的热交换装置，其特征在于：
    所述连接件具有凸缘部，所述凸缘部在所述连接件的径向方向凸伸；
    所述板片部具有第一板片和第二板片，所述第一板片与所述第二板片焊接固定，所述凸缘部的顶部或底部与所述第一板片焊接固定；或者所述凸缘部的顶部或底部与所述第二板片焊接固定；
    和/或所述芯体部件具有顶压块，所述凸缘部与所述顶压块焊接固定。
  6. 根据权利要求1所述的热交换装置，其特征在于：
    所述芯体部件具有第一侧部和第二侧部，所述阀芯部件的至少部分位于所述第一侧部所在侧，所述热交换装置具有连通通道，所述连通通道位于所述第二侧部所在侧，所述连通通道与所述连通腔连通；
    所述阀座部的至少部分伸入所述第一端部，所述相邻段的外径大于或等于所述焊接段的外径。
  7. 根据权利要求1-6中任一项所述的热交换装置，其特征在于：
    所述连接件具有阀座配合部和引流管，所述阀座配合部与所述阀座部密封设置，
    所述阀座配合部具有底端部，所述引流管与所述底端部焊接固定，部分所述引流管位于所述阀座配合部；
    所述引流管具有外扩部，沿所述芯体部件的堆叠方向，所述阀座配合部比所述外扩部靠近所述阀座部，所述外扩部与所述阀座配合部的底端部配合限制。
  8. 根据权利要求7所述的热交换装置，其特征在于：
    所述阀座部具有底座段和中部段，所述底座段具有底部开口，所述中部段具有周部开口，所述阀座配合部具有环壁部，所述底座段与所述环壁部密封设置；
    所述阀座配合部设置有与所述周部开口对应的侧部孔，在所述芯体部件的堆叠方向，所述侧部孔相对所述环壁部靠近所述芯体部件的第一侧部。
  9. 根据权利要求1所述的热交换装置，其特征在于：
    所述连接件包括引流管；
    所述板片部具有第三板片和第四板片，所述第三板片和所述第四板片焊接固定，所述第三板片具有第一环凸部，所述第四板片具有第二环凸部，所述阀座部的至少部分伸入所述第一环凸部，所述阀座部具有底座段，所述底座段具有所述底部开口，所述底座段与所述第一环凸部密封设置；
    所述连接件的第一端部伸入所述第二环凸部，所述第二环凸部与所述连接件焊接固定。
  10. 根据权利要求9所述的热交换装置，其特征在于：
    所述阀座部具有底座段和中部段，所述底座段具有所述底部开口，所述中部段具有所述周部开口，以所述芯体部件设置所述阀芯部件的一侧为上方，所述中部段位于所述连接件上方；
    所述连接件的第一端部的至少部分与所述第二环凸部焊接固定，所述第二端部与所述芯体部件焊接固定；
    所述第一端部具有第一段和第二段，所述第一端部的第一段伸入所述第二环凸部，所述第二段未伸入所述第二环凸部，所述第二段的外径大于所述第一段，所述第二段的外径大于所述第二环凸部的内径。
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