CN109728378B

CN109728378B - Board subassembly, battery pack and battery heat transfer system

Info

Publication number: CN109728378B
Application number: CN201711041264.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2017-10-30
Filing date: 2017-10-30
Publication date: 2022-04-22
Anticipated expiration: 2037-10-30
Also published as: CN109728378A

Abstract

The invention discloses a plate assembly, a battery assembly and a battery heat exchange system, which comprise a first current collecting part, a flat main body part and a second current collecting part, wherein the first current collecting part and the second current collecting part are arranged on two sides of the flat main body part; the flat main body part comprises two and two fluid channels, one part of the fluid channel is communicated with the first chamber, and one part of the fluid channel is communicated with the second chamber; the plate assembly includes a first port capable of communicating with the first chamber, the first port capable of communicating with the fluid passageway, and a second port in communication with the second chamber. The solution of the invention is compact and small, and the flat main body part can be used for cooling external parts.

Description

Board subassembly, battery pack and battery heat transfer system

Technical Field

The invention relates to the field of fluid heat exchange.

Background

Batteries of electric vehicles or hybrid vehicles generate a large amount of heat during the operation of the vehicle, the temperature of the batteries increases, and the increase in the temperature of the batteries is disadvantageous to the use of the batteries and tends to reduce the life of the batteries. In general, a system for cooling a battery is provided in an electric vehicle or a hybrid vehicle.

There are generally two methods for battery cooling, one is cooling with a coolant and the other is cooling with a refrigerant. The refrigerant is used for cooling, an expansion valve is needed in the system, the refrigerant has a phase state or working state change, and the expansion valve needs to be connected in the system, and the refrigerant needs to be connected by a pipeline in many cases, so the structure is relatively complex.

Disclosure of Invention

The invention aims to provide a plate assembly, a battery assembly and a battery heat exchange system, which have simple and compact structures and can be used for cooling batteries.

In order to realize the purpose, the following technical scheme is adopted: a plate assembly comprises a first current collecting portion, more than two flat main portions and a second current collecting portion, wherein the first current collecting portion and the second current collecting portion are arranged on two sides of the flat main portions, the first current collecting portion comprises a first block portion, a first current collecting portion and a second current collecting portion, the first current collecting portion comprises a first chamber, the second current collecting portion comprises a second chamber, and the first block portion is connected with the first current collecting portion and the second current collecting portion;

the flat body portion comprises two or more fluid channels, a portion of the fluid channels being in communication with the first chamber and a portion of the fluid channels being in communication with the second chamber, the fluid channels having a channel equivalent diameter in the range of 10-1000 μm; each flat main body portion includes an outer side portion that is arranged in parallel to a longitudinal direction of the first current collecting portion or the second current collecting portion;

the plate assembly includes a first port communicable with the first chamber, the first port communicable with the fluid channel, and a second port communicable with the second chamber.

In order to realize the purpose, the following technical scheme is adopted: a battery assembly comprising a plate assembly and a battery portion, the plate assembly as described in the previous claims, the plate assembly comprising a flat body portion, at least a portion of the battery portion being disposed in contact with the flat body portion or via a thermally conductive element; the battery part is assembled and fixed with the flat main body part.

In order to realize the purpose, the following technical scheme is adopted: the utility model provides a battery heat exchange system, battery heat exchange system includes compressor, condenser, battery pack is as above-mentioned technical scheme, battery pack includes board subassembly and battery portion, the board subassembly with battery portion is fixed to be set up, the board subassembly includes flat main part, at least part of battery portion with flat main part contact setting or through setting up the contact setting of heat-conducting element, the board subassembly still includes first interface and second interface, the export of compressor with the condenser intercommunication, the condenser with first interface intercommunication, the second interface with the import intercommunication of compressor.

The technical scheme includes that the device comprises a first collecting portion, more than two flat main portions and a second collecting portion, wherein the first collecting portion comprises at least one chamber, the flat main portions comprise more than two fluid channels, one part of each fluid channel is communicated with the first chamber, and one part of each fluid channel is communicated with the second chamber; the plate component comprises a first interface and a second interface, the first interface can be communicated with the first cavity, the second interface is communicated with the second cavity, and the first interface of the plate component can be communicated with the fluid channel, so that the fluid channel is not additionally connected with the first interface through a pipeline, and the structure is compact.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a plate assembly of the present invention;

FIG. 2 is a schematic structural view of the first block portion shown in FIG. 1;

FIG. 3 is a side schematic view of the first block portion of FIG. 2;

FIG. 4 is a schematic sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of the embodiment of FIG. 1 with the first block portion removed;

fig. 6 is a schematic structural view of the first collector part shown in fig. 1, wherein a, b, c show different surface structural views of the first collector part;

fig. 7 is a schematic structural view of the second collecting portion shown in fig. 1;

FIG. 8 is a schematic representation of three embodiments of the flat body portion of the present invention, wherein a, b, c each illustrate one embodiment;

FIG. 9 is a schematic view of the construction of the bulkhead portion of FIG. 1;

FIG. 10 is a schematic structural view of a second embodiment of a plate assembly of the present invention;

FIG. 11 is a schematic structural view of the first block portion of FIG. 10;

FIG. 12 is a schematic front view of FIG. 11;

FIG. 13 is a schematic sectional view taken along the line C-C in FIG. 12;

FIG. 14 is a top view of FIG. 11;

FIG. 15 is a schematic sectional view taken along the direction D-D in FIG. 14;

FIG. 16 is a schematic structural view of a third embodiment of a plate assembly of the present invention;

FIG. 17 is a schematic view of the first block portion of FIG. 16;

FIG. 18 is a schematic front view of FIG. 17;

FIG. 19 is a schematic sectional view taken along the line E-E in FIG. 18;

FIG. 20 is a schematic structural view of a fourth embodiment of a plate assembly of the present invention;

FIG. 21 is a schematic view of the first block portion of FIG. 20;

FIG. 22 is a right side schematic view of FIG. 21;

FIG. 23 is a schematic sectional view taken along line F-F in FIG. 22;

FIG. 24 is a left side schematic view of FIG. 21;

FIG. 25 is a schematic sectional view taken along line G-G of FIG. 24;

fig. 26 is a schematic view of the structure of the first collector portion shown in fig. 20;

FIG. 27 is a schematic structural view of a fifth embodiment of a plate assembly of the present invention;

FIG. 28 is a schematic structural view of a sixth embodiment of a plate assembly of the present invention;

FIG. 29 is a schematic structural view of the first block portion of FIGS. 27 and 28;

FIG. 30 is a right side schematic view of FIG. 29;

FIG. 31 is a schematic sectional view taken along line H-H of FIG. 30;

FIG. 32 is a schematic structural view of the second block body portion shown in FIGS. 27 and 28;

FIG. 33 is a right side schematic view of FIG. 32;

FIG. 34 is a schematic sectional view taken along line I-I of FIG. 33;

FIG. 35 is a schematic structural view of a seventh embodiment of a plate assembly of the present invention;

FIG. 36 is a schematic structural view of another embodiment of FIG. 35;

FIG. 37 is a schematic structural view of an eighth embodiment of a plate assembly of the present invention;

FIG. 38 is a schematic structural view of another embodiment of FIG. 37;

FIG. 39 is a schematic structural view of a ninth embodiment of a plate assembly of the present invention;

FIG. 40 is a schematic structural view of another embodiment of FIG. 39;

FIG. 41 is a schematic structural view of another embodiment of FIG. 1;

FIG. 42 is a schematic structural view of another embodiment of FIG. 10;

FIG. 43 is a schematic structural view of another embodiment of FIG. 16;

FIG. 44 is a schematic structural view of another embodiment of FIG. 20;

FIG. 45 is a schematic structural view of another embodiment of FIG. 27;

FIG. 46 is a schematic structural view of another embodiment of FIG. 28;

fig. 47 is a schematic structural view of a seventh embodiment of a battery pack according to the present invention;

fig. 48 is a schematic structural view of an eighth embodiment of a battery pack according to the present invention;

FIG. 49 is a cross-sectional view of the first block portion of FIG. 40;

fig. 50 is a schematic structural view of a first embodiment of a battery pack according to the present invention;

FIG. 51 is a schematic structural view of a second embodiment of a battery pack according to the present invention;

fig. 52 is a schematic structural view of a third embodiment of a battery module of the present invention;

fig. 53 is a schematic structural view of a fourth embodiment of a battery pack according to the present invention;

fig. 54 is a schematic structural view of a fifth embodiment of a battery pack according to the present invention;

fig. 55 is a schematic structural view of a sixth embodiment of a battery pack according to the present invention;

FIG. 56 is a schematic structural view of an embodiment of the expansion part of the present invention;

FIG. 57 is a schematic view of one embodiment of a battery heat exchange system of the present invention;

fig. 58 is a control schematic block diagram of one embodiment of a battery assembly of the present invention.

Detailed Description

The plate assembly can be used for cooling and heating a vehicle battery, the plate assembly can be used for cooling and heating the battery in the case that the flowing fluid in the plate assembly is refrigerant, the refrigerant subjected to throttling depressurization flows in the flat main body part of the plate assembly to absorb heat of an external structure (such as the battery) contacted with the flat main body part of the plate assembly, and therefore the temperature of the external structure (such as the battery) is reduced. Or the plate assembly may be used as a condenser to heat an external structure (e.g., a battery).

It should be understood that the flow rates described below are specifically referred to as mass flow rates.

Example 1

Referring to fig. 1 and 41, fig. 1 illustrates a structure of a plate assembly 10, fig. 41 illustrates a structure of a plate assembly 10 ', and the plate assemblies 10 and 10' include a first current collecting portion 11, two or more flat body portions 13, and a second current collecting portion 12, the first current collecting portion 11 and the second current collecting portion 12 are respectively disposed at both sides of the flat body portions 13, and the flat body portions 13 connect the first current collecting portion 11 and the second current collecting portion 12. The flat body 13 is provided with two or more fluid passages 131 therein. The channel equivalent diameter of the fluid channel is in the range of 10-1000 μm. The channel equivalent diameter of the fluid channel is in the range of 10-1000 μm, which helps to distribute the fluid from the first collecting portion/second collecting portion into the fluid channel, helps to distribute the fluid more uniformly in the flat body portion, and can effectively absorb heat from or transfer heat to an external part when the flat body portion is placed in contact with the external part.

The first collector part 11 includes at least a first block part 112 and a first collector part 111, and the first block part 112 and the first collector part 111 are fixedly disposed. The first collecting portion and the second collecting portion are internally provided with chambers. The first collecting part and the second collecting part comprise tubular structures or block structures or other structures with certain inner cavities. The first block body may be of a generally block or column configuration or other configuration. The flat body portion 13 refers to a structure having a large flat plate-like or arc-like surface, and a non-flat plate-like structure is not excluded.

As an embodiment, referring to fig. 1 and 5, each flat body portion 13 includes an outer side portion 132 that is disposed parallel to the longitudinal direction of the first collecting portion. Herein, the length direction of the first collecting part refers to an extending direction of the first collecting part, i.e., extends from one end of the first collecting part to the other end of the first collecting part. The first current collecting portion has a straight configuration, and the longitudinal direction thereof is a linear direction, and the first current collecting portion has a curved configuration, and the longitudinal direction thereof is a curved direction. For example, when the first current collector portion is circular, the first current collector portion may be formed in a pattern extending from one end to the other end in the longitudinal direction, and in this case, the first current collector portion may be also formed in a substantially circular shape. The direction of the plate component towards the fluid channel is defined as inner, the fluid channel is arranged in the outer side part, when the fluid flows through the fluid channel, the fluid can transmit heat to the external part or absorb heat of the external part through the outer side part, and therefore heat exchange of the external part arranged in contact with the outer side part is facilitated.

The channel equivalent diameter of the flat body portion is in the range of 100-. The length of flat main part is far greater than the height of flat main part, and the width of flat main part is far greater than the height of flat main part, and the fluid passage sets up along the length direction of flat main part. The length direction of the flat body portion herein is a direction extending from the first collecting portion to the second collecting portion as shown in the drawing, and the width direction of the flat body portion herein is a direction extending from one end to the other end of the first collecting portion/second collecting portion as shown in the drawing; the height direction of the flat body portion herein is along the up-down direction of the structure shown in the drawings. With much larger meaning at least 3 times larger. The plurality of flat body portions 13 are arranged substantially in parallel, and the plurality of flat body portions 13 are arranged at intervals.

The flat main body 13 includes a first end 134a and a second end 134b, the first end 134a and the second end 134b are located at two ends of the flat main body 13, the first end 134a and the second end 134b may extend into the chambers of the first current collecting portion and the second current collecting portion in an insertion manner, and the connecting portion is fixed to the wall portions of the first current collecting portion and the second current collecting portion in a matching manner, for example, the matching portion of the connecting portion and the current collecting portion is fixed by welding or other manners. Alternatively, the first and

second ends

134a, 134b may be secured to the walls of the header-forming chamber, such as by welding or otherwise. End refers herein to a portion at a distance from the port. The plurality of flat main body portions are arranged substantially in parallel, and the plurality of flat main body portions are arranged at intervals.

The first collecting portion 11 is provided with a plurality of first slots 113a, the first slots 113a are matched with the first end portion 134a, the first slots 113a extend towards the length direction of the first collecting portion 11, the first slots 113a are arranged linearly, and the first slots 113a are arranged at intervals; the second collecting portion 12 is provided with a plurality of second grooves 113b, the second grooves 113b are engaged with the second end portion 134b, the second grooves 113b extend in the longitudinal direction of the second collecting portion 12, the second grooves 113b are linearly arranged, the second grooves 113b are spaced apart, a portion of the flat body portion 13 is inserted into the first groove 113a, and a portion of the flat body portion 13 is inserted into the second groove 113 b. Wherein the groove is arranged at the peripheral position of the first current collecting part and the second current collecting part. Like this, the flat main part of being connected with the groove cooperation is the straight line and arranges, and each outside portion is in the coplanar and helps follow-up laminating with other spare parts (for example battery), is favorable to the heat transfer. Herein, the extending direction of the first and second grooves means the longitudinal direction of the grooves. Of course, in the case where the outer side portion is of an arc-like structure, the first grooves are arranged at intervals, and the first grooves are arranged in an arc-like shape, and similarly, the second grooves are arranged at intervals, and the second grooves are arranged in an arc-like shape.

Specifically, referring to fig. 6 and 7, the first collector part 111 is provided with a plurality of first grooves 113a at a side portion, which is a position on the circumferential side of the first collector part, and the first grooves 113a are linearly arranged. The first end 134a is fixed to the wall of the first collector portion 111 forming the first groove 113 a; the second end 134b is fixed to the wall of the second collecting portion 12 forming the second slot 113 b.

The width of the flat main body part can be, for example, 2cm-8cm, so that the flatness of the flat main body part can be realized, and the processing technology is simple. Here, the flat body portion width refers to a distance of a short side of the flat body portion, that is, a width direction of the flat body portion shown in fig. 1 is an extending direction along the second collecting portion.

Referring to fig. 8, the flat main body has various embodiments, and as an embodiment, the fluid passages inside the flat main body may be circular passages, and the circular passages are uniformly distributed; as another embodiment, the fluid channel inside the flat main body part except the two-end channel can be a rectangular or square channel; as another embodiment, except for the channels at the two ends, the fluid channels inside the flat main body part can be irregular channels in the same pattern; of course, in addition to the above embodiments, the fluid passages may have other regular or irregular shapes, but the passage shapes of the fluid passages within the same flat main body portion are substantially the same pattern. In addition, the distribution of the fluid channels can be uniform distribution or non-uniform distribution, and can be changed according to the heat exchange requirement.

Referring to fig. 2 to 6, the first current collector portion 11 includes a first block portion 112 and a first current collector portion 111, the first block portion 112 and the first current collector portion 111 are assembled and fixed, for example, welded and fixed, the first block portion 112 includes a first fitting portion 114, the first fitting portion 114 is fixedly disposed with the first current collector portion 111, the first fitting portion 114 is provided with a first connection port 115, and the first connection port 115 is communicated with an inner cavity of the first current collector portion 111. The first collector portion 111 includes a second connection port 116, and the second connection port 116 communicates with the first connection port 115. The first fitting portion 114 provides a fifth connection port 117, the first collector portion 111 provides a sixth connection port 118, and the fifth connection port 117 communicates with the sixth connection port 118. In this manner, fluid may enter the first collector portion from the first block portion.

The first block portion 112 includes a mounting aperture 1121, a first connecting channel 1122, a second connecting channel 1123 and a communicating channel 1124, the first connecting channel 1122 is communicated with the mounting aperture 1121, the second connecting channel 1123 is communicated with the mounting aperture 1121, the mounting aperture 1121 extends from an end of the first block portion 112 to the inside of the first block portion 112, with an axial extending direction of the mounting aperture 1121 as a height direction, a port where the mounting aperture 1121 is communicated with the first connecting channel 1122 is defined as a first port 1125, a port where the mounting aperture 1121 is communicated with the second connecting channel 1123 is defined as a second port 1126, and the first port 1125 and the second port 1126 are located at different heights. The communication passage 1124 communicates with the fifth connecting orifice 117, and the communication passage 1124 does not communicate with the first connecting passage 1122 inside the first block body, the communication passage 1124 does not communicate with the second connecting passage 1123 inside the first block body, and the communication passage 1124 does not communicate with the mounting hole 1121 inside the first block body. The first and

second connection channels

1122, 1123 are located on different sides of the mounting aperture 1121, including on opposite sides, as well as in an angularly disposed position.

The first collector portion 111 includes a partition portion 1111, a first chamber 1112, and a second chamber 1113, the partition portion 1111 partitions the first chamber 1112 and the second chamber 1113, the first chamber 1112 communicates with the second connection port 216, the second chamber 1113 communicates with the fifth connection port 117, the second connection passage 1122 communicates with the first chamber 1112, the communication passage 1124 communicates with the second chamber 1113, and the fifth connection port 117 and the sixth connection port 118 are provided on both sides of the partition portion 1111. As a specific embodiment, the separator 1111 is configured as shown in fig. 9, and includes a body 1114 and an extension 1115, the body 1114 has a shape corresponding to the cross-sectional shape of the cavity of the first current collector 111, the extension 1115 extends outward from the periphery of the body 1114, and the extension 1115 is welded to the wall of the cavity formed by the first current collector 111.

The number of fluid passages communicating with the first chamber 1112 is substantially the same as the number of fluid passages communicating with the second chamber 1113, such that the flow of fluid from the first chamber into the second chamber after passing through the flat body portion is substantially the same, it being understood that the term "substantially the same" means a flow within ± 5%. As shown in the drawings, the port 1127 of the first connecting channel 1122 and the port 1128 of the communication channel 1124 are disposed on the same side of the first block body 112, and the port 1127 of the first connecting channel 1122, the port 1128 of the communication channel 1124 and the first fitting portion 114 are located on opposite sides of the first block body 112, so that the first block body 112 and an external connection pipe can be conveniently installed, and the subsequent assembly is facilitated. The plate assembly includes a first port 1127 of the first connecting passage 1122 and a second port 1128 of the communication passage 1124.

Referring to fig. 2 to 4, the extending direction of the mounting hole 1121 is substantially parallel to the extending direction of the first collector portion 111, the extending direction of the second connection passage 1123 and the communication passage 1124 is substantially perpendicular to the extending direction of the first collector portion 111, the first block portion 112 is located at a substantially middle position of the first collector portion 111, and the second connection passage 1123 and the communication passage 1124 are located at both side positions of the partition portion 1111. It should be understood that the central position is not limited to a strictly central position, and the term "substantially central position" means a position of the central structure excluding the end portions, as explained below.

Referring to FIG. 41, plate assembly 10' includes an expansion 4, and expansion 4 may be used for throttling depressurization of a fluid, such as a refrigerant.

Referring to fig. 56, the expansion unit 4 includes a core unit 41 and a coil unit 42, and the coil unit 42 and the core unit 41 are assembled and fixed. At least part of the expansion 4 is assembled and fixed with the wall of the first block forming the mounting hole, for example by screwing, or fixed by other parts, for example by clips, nuts, clips, etc. The core part 41 comprises a valve port 43 and an orifice 44, the valve port 43 of the core part 41 is communicated with the first connecting channel, the orifice 44 is communicated with the second connecting channel, the core part 41 comprises a valve needle 45, the valve needle 45 can be influenced by magnetic force of a coil and the like, most of the valve needle 45 is positioned above the orifice 44, the valve needle 45 is driven by other structures of the core part 41 to move up and down, so that the valve needle 45 can move along the axial direction of the core part relative to the wall part forming the orifice of the core part, a gap can be left between the valve needle 45 and the wall part forming the orifice 44 of the core part 41, or the valve needle 45 extends into the orifice 44 and closes the orifice, and thus the communication between the second connecting channel and the valve port of the core part 41 is blocked. The orifice 44 is a hole provided in the core portion 41, and is not limited to a flow passage in which the needle and the orifice are engaged.

In the above embodiment, the expansion unit 4 is electrically operated to the coil unit to cause the movement of the needle, and thus high control accuracy can be obtained. In addition, the expansion part can also ensure lower superheat degree and even zero superheat degree control. On one hand, the temperature on the whole plate assembly can be ensured to be uniform, the temperature of each part of a component (such as a battery) assembled with the plate assembly is better ensured to be within a target temperature range, the temperature difference between the components (such as the batteries) is not large, and the efficiency and the service life of the components (such as the batteries) are improved; on the other hand, the lower superheat degree control or even the zero superheat degree control can ensure that the heat exchange of the plate assembly is sufficient, and the COP of a system applying the plate assembly is improved.

The expansion part 4 is connected with the first collecting part in a block manner instead of a pipeline, so that the change of the flowing state of the gas-liquid two-phase refrigerant, such as gas-liquid stratification and the like, can be avoided, and the refrigeration effect is not influenced. In addition, the plate component is compact in structure, convenient to install, good in vibration resistance and capable of correspondingly reducing installation steps.

After the expansion portion 4 is located at the mounting hole 1121, the refrigerant enters from the first port, passes through the first connecting passage 1122, enters through the orifice into the second connecting passage 1123, enters from the first connecting orifice 115 into the first chamber of the first collecting portion 111, enters into the second collecting portion 12 through the fluid passage in the flat body portion communicating with the first collecting portion, collects in the second collecting portion 12, enters into the second chamber of the first collecting portion 111 through the fluid passage in the flat body portion communicating with the second collecting portion 12, then enters into the communication passage 1124 through the fifth connecting orifice 117, and then exits from the second port.

After the refrigerant is throttled and expanded by the expansion part 4, the heat of the external parts (for example, batteries) on the flat main body part is absorbed in the fluid passage of the flat main body part, and the temperature of the external parts (for example, batteries) on the flat main body part is reduced.

Example 2

As another embodiment, referring to fig. 10 to 15, 42, 10 illustrates a structure of the

plate assembly

20, 42 illustrates a structure of the plate assembly 20 ', and fig. 42 illustrates a structure of the plate assembly 20 ', the plate assembly 20, 20 ' includes the first current collecting portion 21, the flat body portion 23, and the second current collecting portion 22, the first current collecting portion 21 includes the first block portion 212 and the first current collecting portion 211, and the structure of the first current collecting portion 211 refers to the first current collecting portion 111 in the above-described embodiment.

The first block portion 212 and the first current collector portion 211 are assembled and fixed, the first block portion 212 includes a first fitting portion 214, the first fitting portion 214 is fixedly disposed with the first current collector portion 211, the first fitting portion 214 is provided with a first connection port 215, and the first connection port 215 is communicated with an inner cavity of the first current collector portion 211. The first collector portion 211 includes a second connection port 216, and the second connection port 216 communicates with the first connection port 215. The first fitting portion 214 is provided with a fifth connection port 217, the first collector portion 211 is provided with a sixth connection port 218, and the fifth connection port 217 communicates with the sixth connection port 218.

The first block body 212 includes a mounting bore 2121, a first connecting passage 2122, a second connecting passage 2123 and a communicating passage 2124, the first connecting passage 2122 communicates with the mounting bore 2121, the second connecting passage 2123 communicates with the mounting bore 2121, the mounting bore 2121 extends from an end of the first block body 212 to an interior of the first block body 212, a height direction is defined as an axial extending direction of the mounting bore 2121, a port of the mounting bore 2121 communicating with the first connecting passage 2122 is defined as a first port 2125, a port of the mounting bore 2121 communicating with the second connecting passage 2123 is defined as a second port 2126, and the first port 2125 and the second port 2126 are located at different heights. The communicating passage 2124 communicates with the fifth connecting port 217, and the communicating passage 2124 does not communicate with the first connecting passage 2122 inside the first block, the communicating passage 2124 does not communicate with the second connecting passage 2123 inside the first block, and the communicating passage 2124 does not communicate with the mounting hole 2121 inside the first block. The first connecting passage 2122 and the second connecting passage 2123 are located on different sides of the mounting bore 2121.

The mounting hole 2121 extends in a direction substantially perpendicular to the extending direction of the first collector portion 211, the second connecting passage 2123 and the communicating passage 2124 extend in a direction substantially perpendicular to the extending direction of the first collector portion 211, the first block portion 212 is located at a substantially middle position of the first collector portion 211, and the second connecting passage 2123 and the communicating passage 2124 are located at both side positions of the separator portion.

The number of fluid passages communicating with the first chamber 2112 is substantially the same as the number of fluid passages communicating with the second chamber 2113, such that the flow of fluid from the first chamber through the flat body portion and into the second chamber is substantially the same, it being understood that the term "substantially the same" means a flow within ± 5%. As shown, the port 2127 of the first connecting channel 2122 and the port 2128 of the communicating channel 2124 are disposed on the same side of the first block body 212, and the port 2127 of the first connecting channel 2122, the port 2128 of the communicating channel 2124 and the first fitting portion 214 are located on opposite sides of the first block body 212, so that the first block body 212 and the external connection pipe can be conveniently connected and mounted, and the subsequent assembly is facilitated.

The plate assembly 20, 20' includes a first port, which is a port 2127 of a first connecting passage 2122, and a second port, which is a port 2128 of a communicating passage 2124.

Referring to FIG. 42, the plate assembly 20' includes an expansion 4, and the expansion 4 may be used for throttling depressurization of a fluid, such as a refrigerant. The structure of the inflation portion 4 refers to the above-described embodiment. In the present embodiment, the inflatable portion 4 is installed perpendicular to the flat main body portion, and the fluid enters from the side portion, so that the installation of the inflatable portion 4 is facilitated without affecting the installation of the external structures of the first port and the second port.

After the expansion 4 is located at the mounting hole 2121, the refrigerant enters from the first interface, passes through the first connecting passage 2122, passes through the orifice, enters the second connecting passage 2123, enters the first chamber of the first collector portion 211 from the first connecting orifice 215, enters the second collector portion 22 through the fluid passage in the flat body portion communicating with the first collector portion, is collected in the second collector portion 22, passes through the fluid passage in the flat body portion communicating with the second collector portion 22, enters the second chamber of the first collector portion 211, passes through the fifth connecting orifice 217, enters the communicating passage 2124, and then exits from the second interface.

Example 3

As another embodiment, referring to fig. 16 to 19, 43, 16 illustrates a structure of a

plate assembly

30, 43 illustrates a structure of a plate assembly 30 ', and fig. 43 illustrates a structure of a plate assembly 30 ', the plate assembly 30, 30 ' includes a first current collecting portion 31, a flat body portion 33, and a second current collecting portion 32, the first current collecting portion 31 includes a first block portion 312 and a first current collecting portion 311, and the structure of the first current collecting portion 311 refers to the first current collecting portion 111 in the above-described embodiment.

The first block portion 312 and the first collector portion 311 are assembled and fixed, the first block portion 312 includes a first fitting portion 214, the first fitting portion 314 is fixedly disposed with the first collector portion 311, the first fitting portion 314 is provided with a first connection port 315, and the first connection port 315 is communicated with an inner cavity of the first collector portion 311. The first collector portion 311 includes a second connection port 316, and the second connection port 316 communicates with the first connection port 315. The first fitting portion 314 is provided with a fifth connection port 317, the first collector portion 311 is provided with a sixth connection port 318, and the fifth connection port 317 communicates with the sixth connection port 318.

The first block body 312 includes a mounting hole 3121, a first connection passage 3122, a second connection passage 3123, and a communication passage 3124, the first connection passage 3122 communicates with the mounting hole 3121, the second connection passage 3123 communicates with the mounting hole 3121, the mounting hole 3121 extends from an end of the first block body 312 to the inside of the first block body 312, a height direction is a direction in which an axial direction of the mounting hole 3121 extends, a port where the mounting hole 3121 communicates with the first connection passage 3122 is defined as a first port 3125, a port where the mounting hole 3121 communicates with the second connection passage 3123 is defined as a second port 3126, and the first port 3125 and the second port 3126 are located at different heights. The communication passage 3124 communicates with the fifth connecting orifice 317, and the communication passage 3124 does not communicate with the first connecting passage 3122 inside the first block body, the communication passage 3124 does not communicate with the second connecting passage 3123 inside the first block body, and the communication passage 3124 does not communicate with the mounting hole 3121 inside the first block body.

The port 3129 of the mounting hole 3121, the port 3127 of the first connection passage 3122, and the port 3128 of the communication passage 3124 are located at the same side of the first block 312, and the port 3127 of the first connection passage 3122, the port 3128 of the communication passage 3124, and the first fitting portion 314 are located at opposite sides of the first block 312, so that the connection of the first connection passage, the communication passage, and the external pipe is more convenient, and the subsequent assembly is convenient. And the extending direction of the mounting hole 3121 is substantially perpendicular to the extending direction of the first collector part 311, the extending direction of the second connection passage 3123 and the communication passage 3124 is substantially perpendicular to the extending direction of the first collector part 311, the first block portion 312 is located at a substantially middle position of the first collector part 311, and the second connection passage 3123 and the communication passage 3124 are located at both side positions of the partition portion.

The first connection passage 3122 is in the form of a bent passage, the first connection passage 3122 includes a first sub-passage 3122a and a second sub-passage 3122b, the first sub-passage 3122a extends from a port thereof toward the first block interior 312, the second sub-passage 3122b extends from the first sub-passage 3122a toward the mounting hole 3121, and the second sub-passage 3122b is an inclined passage, the height of the port 3125 of the second sub-passage 3122b communicating with the mounting hole 3121 is relatively higher than the height of the port 3126 of the second connecting passage 3123 communicating with the mounting hole 3121, with the axial extending direction of the mounting hole 3121 as the height direction, and thus, when processing first block somatic part, the processing of second subchannel is comparatively convenient, and in addition, the influence to the fluid flow resistance is less in the setting of oblique passageway, makes the fluid performance that gets into in the fluid passage of flat main part comparatively stable and controllable, helps making the heat transfer performance of board subassembly comparatively controllable and stable.

The first block portion 312 includes a convex portion 3120b and a flat portion 3120a, the flat portion 3120a provides the first attaching portion 314, and the flat portion 3120a is fixedly disposed with the first collector portion 311, the convex portion 3120b protrudes outward with respect to the flat portion 3120a, the convex portion 3120b provides the mounting hole 3121, the flat portion 3120a provides the first connection channel 3122, the second connection channel 3123, and the communication channel 3124, a position where the convex portion 3120b provides the mounting hole 3121 is defined as an upper portion, a position where the convex portion 3120b provides the mounting hole 3121 is defined as a lower portion, and a gap is left between the lower portion of the convex portion 3120b and the first collector portion 311, so that leakage of fixation between the flat portion and the first collector portion due to a processing error between the convex portion and the first collector portion is prevented. Through the arrangement of the convex part, the extending direction of the mounting hole channel is approximately parallel to the extending direction of the communicating channel, and the port of the mounting hole channel and the port of the communicating channel are located on the same side part of the first block body part, so that subsequent mounting is facilitated.

The plate assembly 30, 30' comprises a first interface being a port 3127 of a first connection channel 3122, a second interface being a port 3128 of a communication channel 3124.

Referring to FIG. 43, the plate assembly 30' includes an expansion 4, and the expansion 4 may be used for throttling depressurization of a fluid, such as a refrigerant. The structure of the inflation portion 4 refers to the above-described embodiment.

After the expansion portion 4 is located at the mounting hole 3121, the refrigerant enters from the first port, passes through the first connection channel 3122, enters the second connection channel 3123 through the throttle hole, enters the first chamber of the first collecting portion 311 from the first connection orifice 315, enters the second collecting portion 22 through the fluid passage in the flat body portion communicating with the first collecting portion, collects in the second collecting portion 32, enters the second chamber of the first collecting portion 311 through the fluid passage in the flat body portion communicating with the second collecting portion 32, then enters the communication channel 3124 through the fifth connection orifice 317, and then exits from the second port.

In each of the above embodiments, the first and second current collecting portions are provided in a tube structure, and the flat main body portion, the first current collecting portion, and the second current collecting portion are made of an aluminum alloy material, so that the flat main body portion, the first current collecting portion, and the second current collecting portion have high rigidity and hardness, and can be applied to not only fluids under normal pressure, but also high-pressure fluids, such as R744 and CO₂And the like. In addition, the aluminum alloy material is low in cost, and the overall structure weight of the plate assembly is light.

Example 4

As another embodiment, based on fig. 20 to 26, 44, fig. 20 illustrates a structure of a plate assembly 40, fig. 44 illustrates a structure of a plate assembly 40 ', the plate assembly 40, 40' includes a first collector portion 41, a flat body portion 43, and a second collector portion 42, the first collector portion 41 includes a first collector portion 411a, a second collector portion 411b, and a first block portion 412, the first collector portion 411a and the second collector portion 411b are located on both sides of the first block portion 412, and the first block portion 412 connects the first collector portion 411a and the second collector portion 411 b. The first collector portion 411a and the first block portion 412 are fixed by, for example, welding, and the second collector portion 411b and the first block portion 412 are fixed by, for example, welding.

The first block portion 412 includes a mounting hole portion 4121, a first connection passage 4122, a second connection passage 4123, a communication passage 4124, a first communication port 4120a, and a second communication port 4120b, the first connection passage 4122 communicates with the mounting hole portion 4121, the second connection passage 4123 communicates with the mounting hole portion 4121, the first communication port 4120a communicates with the second connection passage 4123, the first communication port 4120a communicates with the inner cavity of the first collector portion 411a, and the second communication port 4120b communicates with the inner cavity of the second collector portion 411 b. The connection ports of the first connection channel 4122 and the mounting hole 4121 are defined as a first port 4125, the connection ports of the second connection channel 4123 and the mounting hole 4121 are defined as a second port 4126, and the first port 4125 and the second port 4126 have different heights with respect to the extending direction of the mounting hole 4121 as a height direction. The second connection channel 4123 is an inclined channel, i.e., the connection position of the second connection channel 4123 to the mounting hole 4121 and the connection position of the second connection channel 4123 to the first communication port 4120a are at different heights in the extending direction of the mounting hole. The inclined channel is arranged, so that the first block body is more convenient to machine and process when the second connecting channel is machined.

One end of the first collector part is welded and fixed to the wall portion of the first block body, which forms the first communication port, and one end of the second collector part is welded and fixed to the wall portion of the first block body, which forms the second communication port.

Specifically, the first collector portion 411a has an open end and a closed end, and the open end of the first collector portion 411a and the wall portion of the first block portion 412 forming the first communication opening 4120a are welded and fixed; the second collector portion 411b has one end open and the other end closed, and the open end of the second collector portion 411b and the wall portion of the first block portion 412 forming the second communication port 4120b are fixed by welding. The structures of the first and

second collector parts

411a and 411b may be referred to the first collector part 111.

The first communication port 4120a and the second communication port 4120b are located at both side positions of the first block body portion.

Referring to fig. 26, and with reference to fig. 6 and 7, a first groove 413a is formed in a side of the first collector portion 411a, a first groove is formed in a side of the second collector portion, and a second groove is formed in a side of the second collector portion, where the side refers to a circumferential position of the first collector portion, the second collector portion, and the second collector portion, the first groove of the first collector portion extends in a length direction of the first collector portion, the first groove of the second collector portion extends in a length direction of the second collector portion, the first grooves of the first collector portion are linearly arranged, and the first grooves of the second collector portion are linearly arranged and spaced; the second grooves extend in the length direction of the second collecting portion, and are linearly arranged at intervals.

The plate assembly comprises more than two flat main body parts, the flat main body parts are provided with fluid channels, each flat main body part comprises a first end part and a second end part, and the first end parts are matched and fixed with the wall parts of the first grooves formed by the first current collector parts or the first end parts are matched and fixed with the wall parts of the first grooves formed by the second current collector parts; the second end part and the wall part of the second groove formed by the second current collecting part are matched and fixed. The plurality of flat main body portions are arranged substantially in parallel, and the plurality of flat main body portions are arranged at intervals.

It should be understood that the second collecting portion may be a single one, or may be assembled by several ones having relatively short lengths.

As a specific embodiment, the extending direction of the mounting hole 4121 is substantially perpendicular to the extending direction of the first and

second collector portions

411a and 411b, the port 4127 of the first connection channel 4122 and the port 4128 of the connection channel 4124 are located at the same side of the first block portion 412, the port 4127 of the first connection channel 4122, the port 4128 of the communication channel 4124 and the first engaging portion 414 are located at opposite sides of the first block portion 412, the port 4129 of the mounting hole 4121 is located above the first block portion 412, and the extending direction of the mounting hole 4121 is substantially perpendicular to the flat main portion 43, thereby facilitating the connection of the first block portion with an external pipe. And the first and

second collector parts

411a and 411b are respectively disposed at both sides of the first block part 412, which is advantageous to reduce the length of the first collector part and make the overall size of the entire plate assembly smaller.

The plate member 40, 40' includes a first port, which is the port 4127 of the first connecting channel 4122, and a second port, which is the port 4128 of the communication channel 4124. The first port is communicable with the first chamber, and the second port is communicable with the second chamber.

Referring to FIG. 44, plate assembly 40' includes an expansion 4, and expansion 4 may be used for throttling depressurization of a fluid, such as a refrigerant. The structure of the inflation portion 4 refers to the above-described embodiment. In the present embodiment, the inflatable portion 4 is installed perpendicular to the flat main body portion, and the fluid enters from the side portion, so that the installation of the inflatable portion 4 is facilitated without affecting the installation of the external structures of the first port and the second port.

After the expansion portion 4 is located at the mounting hole 4121, the refrigerant enters from the first interface, passes through the first connection channel 4122, enters the second connection channel 4123 through the orifice, enters the first chamber of the first collector portion 411a from the first connection orifice 415, enters the second collector portion 42 through the fluid passage in the flat body portion communicating with the first collector portion, collects in the second collector portion 42, enters the second chamber of the second collector portion 411b through the fluid passage in the flat body portion communicating with the second collector portion 42, enters the communication channel 4124 through the fifth connection orifice 417, and then exits from the second interface.

Example 5

As another embodiment, referring to fig. 27 to 34, 45, 27 illustrates a structure of a

plate assembly

50, 45 illustrates a structure of a plate assembly 50 ', the plate assembly 50, 50' includes a first current collecting portion 51, a flat body portion 53, and a second current collecting portion 52, the first current collecting portion 51 includes a first block portion 512 and a first current collecting portion 511, and a connection relationship between the first current collecting portion 511 and the flat body portion may be generally referred to as the first current collecting portion 111 in the above-described embodiment. The first block portion 512 and the first collector portion 511 are assembled and fixed, the first block portion 512 includes a first fitting portion 514, the first fitting portion 514 is fixedly disposed with the first collector portion 511, the first fitting portion 514 is provided with a first connection port 515, and the first connection port 515 is communicated with an inner cavity of the first collector portion 511. The first collector portion 511 includes a second connection port (not shown in the drawings), which communicates with the first connection port 515.

The first block body 512 comprises a mounting hole 5121, a first connecting channel 5122 and a second connecting channel 5123, the first connecting channel 5122 is communicated with the mounting hole 5121, the second connecting channel 5123 is communicated with the mounting hole 5121, the mounting hole 5121 extends from the end of the first block body 512 to the inside of the first block body 512, the axial extending direction of the mounting hole 5121 is taken as the height direction, a port where the mounting hole 5121 is communicated with the first connecting channel 5122 is defined as a first port 5125, a port where the mounting hole 5121 is communicated with the second connecting channel 5123 is defined as a second port 5126, and the first port 5125 and the second port 5126 are located at different heights. The first connection path 5122 and the second connection path 5123 are located on different sides of the mounting hole.

The first block portion 512 may be located at an upper side, a lower side, or a side of the first collector portion 511, and the first attaching portion 514 may be located at different sides of the first collector portion, including the upper side, the lower side, and the side. In the case where the first collector part is a cylindrical body, the side part is for the structure of the plate assembly, and the upper and lower parts are illustrated as an example direction.

The first collector part 51 further includes a second block body part 512 ', the second block body part 512 ' and the first block body part 512 are located at both sides of the first collector part 511, the second block body part 512 ' includes a second attaching part 514 ' and a communication passage 5124, and the second attaching part 514 ' is fixed to the first collector part 511, for example, by welding. The second fitting portion 514' is provided with a third connection hole 5141, the first collector portion 511 is provided with a fourth connection orifice (not shown in the drawings), the third connection orifice 5141 communicates with the fourth connection hole, and the communication passage 5124 communicates with the third connection hole 5141. The first collector part 511 further includes a barrier plate 5111, a first chamber 5112 and a second chamber 5113, the barrier plate 5111 partitions the first chamber 5112 and the second chamber 5113, the first chamber 5112 communicates with the first connection hole 515, and the second chamber 5113 communicates with the fourth connection hole. The number of fluid passages communicating with the first chamber is substantially the same as the number of fluid passages communicating with the second chamber such that the flow of fluid from the first chamber through the flat body portion and into the second chamber is substantially the same, it being understood that the term "substantially the same" means a flow within 5%.

The plate member 50, 50' includes a first interface that is a port 5127 of the first connection passage 5122, and a second interface that is a port 5128 of the communication passage 5124.

Referring to FIG. 45, the plate assembly 50' includes an expansion 4, and the expansion 4 may be used for throttling depressurization of a fluid, such as a refrigerant. The structure of the inflation portion 4 refers to the above-described embodiment.

After the expansion portion 4 is located at the mounting hole 5121, the refrigerant enters from the first interface, passes through the first connection passage 5122, enters the second connection passage 5123 through the orifice, enters the first chamber of the first collector portion 511 from the first connection orifice 515, enters the second collector portion 52 through the fluid passage in the flat body portion communicating with the first collector portion, collects in the second collector portion 52, enters the second chamber of the first collector portion 511 through the fluid passage in the flat body portion communicating with the second collector portion 52, then enters the communication passage 5124 through the third connection hole 5141, and then exits from the second interface.

Example 6

Fig. 28 illustrates the structure of the plate assembly 60, fig. 46 illustrates the structure of the plate assembly 60 ', the plate assemblies 60, 60' include a first current collecting portion 61, a flat body portion 63, and a second current collecting portion 62, the first current collecting portion 61 includes a first block portion 612 and a first current collecting portion 611, and the structure of the first current collecting portion 611 refers to the first current collecting portion 111 in the above-described embodiment. The first block body portion 612 and the first collector portion 611 are assembled and fixed, the first block body portion 612 includes a first fitting portion 614, the first fitting portion 614 is fixedly arranged with the first collector portion 611, the first fitting portion 614 is provided with a first connecting port 615, and the first connecting port 615 is communicated with an inner cavity of the first collector portion 611. The first collector portion 611 includes a second connection port 616, and the second connection port 616 communicates with the first connection port 615.

The first block body portion 612 has substantially the same structure as the first block body portion 512, and for simplicity of the drawings, reference is also made herein to fig. 29-31, wherein the reference numerals in parentheses refer to the component numerals of the plate assembly 60. The first block body 612 includes a mounting hole passage 6121, a first connecting channel 6122 and a second connecting channel 6123, the first connecting channel 6122 is communicated with the mounting hole passage 6121, the second connecting channel 6123 is communicated with the mounting hole passage 6121, the mounting hole passage 6121 extends from the end of the first block body 612 to the inside, the axial extending direction of the mounting hole passage 6121 is taken as the height direction, a port where the mounting hole passage 6121 is communicated with the first connecting channel 6122 is defined as a first port 6125, a port where the mounting hole passage 6121 is communicated with the second connecting channel 6123 is defined as a second port 6126, and the first port 6125 and the second port 6126 are located at different heights. The first connection channel 6122 is located on a different side of the mounting tunnel than the second connection channel 6123.

The first block portion 612 may be located on an upper side, a lower side, or a side of the first collector portion 611, but the first attaching portion 614 may be located on different sides of the first collector portion 611, including the upper side, the lower side, and the side. In the case where the first collector part 611 is a cylinder, the side part is for the structure of the plate assembly, and the upper and lower parts are illustrated as an example direction.

The second collector portion 62 includes a second collector portion 621 and a second block body portion 622, and the second collector portion 621 and the second block body portion 622 are assembled and fixed, and since the structure of the second block body portion 622 is substantially the same as that of the second block body portion 512 ', for the sake of simplicity of the drawing, reference is also made to fig. 32 to 34, in which the reference numerals in parentheses are the component numerals of the plate assemblies 60 and 60'. The second block body 622 includes a second fitting portion 624 and a communication passage 6224, and the second fitting portion 624 is fixed to the second collector portion 621, for example, by welding. The second attaching portion 624 is provided with a third connection hole 6241, the second collector portion 621 is provided with a fourth connection hole (not shown), the third connection hole 6241 communicates with the fourth connection hole, and the communication passage 6224 communicates with the third connection hole 6241. First body portion 612 is located on a different side of the plate assembly than second body portion 622, facilitating better distribution of fluid into the flat body portion.

The plate assembly 60, 60' comprises a first interface, which is a port 6127 of the first connection channel 6122, and a second interface, which is a port 6228 of the communication channel 6224.

Referring to FIG. 46, plate assembly 60' includes an expansion 4, and expansion 4 may be used for throttling depressurization of a fluid, such as a refrigerant. The structure of the inflation portion 4 refers to the above-described embodiment.

After the expansion portion 4 is located at the mounting hole 6121, the refrigerant enters from the first port, passes through the first connection passage 6122, enters the second connection passage 6123 through the throttle hole, enters the first chamber of the first collecting portion 611 from the first connection orifice 615, enters the second collecting portion 62 through the fluid passage in the flat body portion communicating with the first collecting portion, collects in the second collecting portion 62, enters the second chamber of the first collecting portion 611 through the fluid passage in the flat body portion communicating with the second collecting portion 62, enters the communication passage 6224 through the third connection orifice 6241, and then exits from the second port.

Example 7

As another embodiment, referring to fig. 35 and 36, fig. 35 illustrates a structure of a plate assembly 70, fig. 36 illustrates a structure of a plate assembly 70 ', the plate assembly 70, 70' includes a first current collecting portion 71, a flat body portion 73, and a second current collecting portion 72, the first current collecting portion 71 includes a first block portion 712 and a first current collecting portion 711, and the structure of the first current collecting portion 711 refers to the first current collecting portion 111 in the above-described embodiment.

The first block portion 712 and the first collector portion 711 are assembled and fixed, the first block portion 712 includes a first attaching portion 714, the first attaching portion 714 is fixedly disposed with the first collector portion 711, and the first attaching portion 714 is provided with a first connecting port (not shown) communicating with an inner cavity of the first collector portion 711. The first collector part 711 includes a second connection port (not shown) that communicates with the first connection port. The first attaching portion 714 is provided with a fifth connecting port (not shown), and the first collector portion 711 is provided with a sixth connecting port (not shown), which communicates with the sixth connecting port.

Specifically, the first block body portion 712 includes the first base plate portion 75, the second base plate portion 76, and the joint pipe portion 77, the joint pipe portion 77 connecting the first base plate portion 75 and the second base plate portion 76; the first substrate portion 75 is provided with a first attaching portion 714, and the first attaching portion 714 is fitted and fixedly provided with the first collector portion 711, for example, by welding, such as furnace welding. The first substrate 75 is provided with a first interface, the second substrate 76 is provided with a second interface, one end of the connecting tube is fixedly connected with the first interface, and the other end of the connecting tube is fixedly connected with the second interface.

The first collector part 711 includes a partition portion that partitions the first chamber and the second chamber, a first connection orifice that communicates with the first chamber, and a fifth connection orifice that communicates with the second chamber.

The second substrate portion 76 is provided with a first port 7127 and a second port 7128, the first port 7127 communicates with the first connection hole, and the second port 7128 communicates with the fifth connection hole. And the first interface 7127 and the second interface 7128 are located at the same side of the second substrate portion 76, which facilitates the connection between the external structure and the second substrate portion.

The first block portion 712 includes a third connecting channel 7122 and a fourth connecting channel 7124, the third connecting channel 7122 communicates with the first connecting orifice, the third connecting channel 7122 can communicate with the first interface 7127, the third connecting channel 7122 communicates with the first chamber of the first collector portion 711, the fourth connecting channel 7124 communicates with the fifth connecting orifice, the second interface 7128, and the fourth connecting channel 7124 communicates with the second chamber of the first collector portion 711.

Referring to FIG. 36, a plate assembly 70 ' includes an expansion 4 ', and the expansion 4 ' may be used for throttling depressurization of a fluid, such as a refrigerant. The plate assembly 70 'also includes a first interface 7127 and a second interface 7128, the first interface 7127 and the second interface 7128 being located at the expansion 4'.

The expansion part 4 'comprises an orifice, a valve core part and a temperature sensing part 47, the orifice is communicated with the second interface, the valve core part is driven to move up and down through the action of the temperature sensing part 47, a gap can be left between the valve core part and the wall part of the expansion part 4' forming the orifice, or the valve core part seals the orifice and blocks the communication between the orifice and the first interface. Wherein the orifice and the valve core are located inside the expansion part 4 ', not shown in the figure, and the expansion part 4' may be a thermal expansion valve.

After the expansion portion 4' is located in the first block portion 712, the refrigerant enters from the first interface, passes through the throttling hole and enters the third connection channel, the refrigerant enters the first chamber of the first collecting portion 711 from the first connection orifice 715, the refrigerant enters the second collecting portion 72 through the fluid passage in the flat body portion communicating with the first collecting portion, the refrigerant is collected in the second collecting portion 72, enters the second chamber of the first collecting portion 711 through the fluid passage in the flat body portion communicating with the second collecting portion 72, then enters the fourth connection channel 7124 through the fifth connection orifice, and then exits from the second interface.

After the refrigerant is throttled and expanded by the expansion part 4', the heat of the external parts (for example, batteries) on the flat body part is absorbed in the fluid passage of the flat body part, and the temperature of the external parts (for example, batteries) on the flat body part is reduced.

Example 8

As another embodiment, referring to fig. 37, 38, 37 illustrates a structure of a plate assembly 80, 38 illustrates a structure of a plate assembly 80 ', the plate assembly 80, 80' includes a first current collecting portion 81, a flat body portion 83, and a second current collecting portion 82, the first current collecting portion 81 includes a first block portion 812 and a first current collecting portion 811, and the structure of the first current collecting portion 811 refers to the first current collecting portion 111 in the above-described embodiment.

The first block portion 812 and the first collector portion 811 are assembled and fixed, the first block portion 812 includes a first fitting portion 814, the first fitting portion 814 fits with an outer contour of the first collector portion 811, the first fitting portion 814 is fixedly disposed with the first collector portion 811, the first fitting portion 814 is provided with a first connection port (not shown), and the first connection port 715 is communicated with an inner cavity of the first collector portion 811. The first collector portion 811 includes a second connection port (not shown) that communicates with the first connection port. The first fitting portion 814 is provided with a fifth connection port (not shown), and the first collector portion 811 is provided with a sixth connection port (not shown), which communicates with the sixth connection port.

The first collector part 811 includes a partition part partitioning the first and second chambers, and the first block part 812 is partially located at a position corresponding to the first chamber and partially located at a position corresponding to the second chamber.

The first block body portion is provided with a first interface 8127 and a second interface 8128, the first interface 8127 is communicated with the first connecting hole, and the second interface 8128 is communicated with the fifth connecting hole. And first interface 8127 and second interface 8128 are located the same lateral part of first block body portion, make things convenient for the connection of exterior structure and first block body portion.

The first block portion 812 includes a third connection channel 8122 and a fourth connection channel 8124, the third connection channel 8122 communicates with the first connection orifice, the first interface 8127, the third connection channel 8122 communicates with the first chamber of the first collector portion 811, the fourth connection channel 8124 communicates with the fifth connection orifice, the second interface 8128, and the fourth connection channel 8124 communicates with the second chamber of the first collector portion 811.

Referring to FIG. 38, plate assembly 80 ' includes an expansion 4 ', and expansion 4 ' may be used for throttling depressurization of a fluid, such as a refrigerant. Plate assembly 80 'also includes first port 8127 and second port 8128, with first port 8127 and second port 8128 being located at inflation portion 4'. The structure of the expansion part 4' refers to the above-mentioned embodiment

The expansion portion 4' is located behind the first block portion 812, the refrigerant enters from the first interface, passes through the throttling hole and enters the third connection channel, the refrigerant enters the first chamber of the first collecting portion 811 from the first connection orifice 815, the refrigerant enters the second collecting portion 82 through the fluid passage in the flat body portion communicating with the first collecting portion, the refrigerant is collected in the second collecting portion 82, enters the second chamber of the first collecting portion 811 through the fluid passage in the flat body portion communicating with the second collecting portion 82, then enters the fourth connection channel 8124 through the fifth connection orifice, and then exits from the second interface.

Example 9

As another embodiment, referring to fig. 39, 40, and 49, fig. 39 illustrates a structure of a plate assembly 90, and fig. 40 illustrates a structure of a plate assembly 90'. The plate assemblies 90, 90' include a first collecting portion 91, a flat body portion 93, and a second collecting portion 92, the first collecting portion 91 includes a first collector portion 911a, a second collector portion 911b, and a first block portion 912, and the first and second collector portions 911a, 911b are located on both sides of the first block portion 912. The first collector portion 911a and the first block portion 912 are fixed by, for example, welding, and the second collector portion 911b and the first block portion 912 are fixed by, for example, welding.

Referring to fig. 49, the first block portion 912 includes a third connection passage 9122, a fourth connection passage 9124, a first communication port 9120a, and a second communication port 9120b, and the first communication port 9120a communicates with the inner cavity of the first collector portion 911a and the second communication port 9120b communicates with the inner cavity of the second collector portion 911 b.

The first collector portion 911a has one end open and the other end closed, and the open end of the first collector portion 911a and the wall portion of the first block portion 912 forming the first communication opening 9120a are welded and fixed; the second collector portion 911b has one end open and the other end closed, and the open end of the second collector portion 911b and the wall portion of the first block portion 912 forming the second communication port 9120b are welded and fixed. The structures of the first and second collector parts 911a and 911b may refer to the first and

second collector parts

411a and 411b and the first collector part 111, and the connection relationship between the first and second collector parts 911a and 911b and the flat main body part, and the like may also refer to the contents of the first and

second collector parts

411a and 411b described above, and are not described herein again.

The first communication opening 9120a and the second communication opening 9120b are located at both side positions of the first block portion.

The first block portion 912 is provided with a first interface 9127 and a second interface 9128, the first interface 9127 is communicated with the first connection hole, and the second interface 9128 is communicated with the fifth connection hole. And the first interface 9127 and the second interface 9128 are located on the same side of the first block body portion, facilitating the connection of the external structure with the first block body portion.

Referring to FIG. 40, a plate assembly 90 ' includes an expansion 4 ', and the expansion 4 ' may be used for throttling depressurization of a fluid, such as a refrigerant. The plate assembly 90 'also includes a first interface 9127 and a second interface 9128, the first interface 9127 and the second interface 9128 being located at the inflation portion 4'. The structure of the expansion portion 4' refers to the above-described embodiment.

After the expansion portion 4' is located in the first block portion 912, the refrigerant enters from the first interface, passes through the throttle hole and enters the third connection passage, the refrigerant enters the first chamber of the first collecting portion 911a from the first connection orifice 915, the refrigerant enters the second collecting portion 92 through the fluid passage in the flat body portion communicating with the first collecting portion, the refrigerant collects in the second collecting portion 92, enters the second chamber of the first collecting portion 911a through the fluid passage in the flat body portion communicating with the second collecting portion 92, then enters the fourth connection passage 9124 through the fifth connection orifice, and then exits from the second interface.

Referring to fig. 47, 48, 50-55, 47 illustrates the structure of a battery assembly 700, 48 illustrates the structure of a

battery assembly

800, 50 illustrates the structure of a

battery assembly

100, 51 illustrates the structure of a battery assembly 200, 52 illustrates the structure of a battery assembly 300, 53 illustrates the structure of a battery assembly 400, 54 illustrates the structure of a battery assembly 500, 55 illustrates the structure of a battery assembly 600, wherein the

battery assemblies

100, 200, 300, 400, 500, 600, 700, 800 comprise a plate assembly comprising a flat body portion with which at least part of the battery portion is arranged in contact or by a heat conducting element, and a battery portion 5 with which the battery is connected, for example by screws, flanges or other means. The heat conducting element comprises a metal sheet, a metal plate or the like.

The battery parts are arranged in a way that more than two battery parts are in contact with the outer side part of the flat main body part or are arranged in a way that a heat conducting element is arranged; it should be noted that the drawings illustrate only a structure in which the battery parts are disposed in one plate member, a plurality of battery parts may be disposed on the plate member, and the plate member may be plural, that is, the battery pack may include not only one plate member but also plural.

The battery assembly is used for a new energy vehicle, for example. After the plate assembly is filled with the refrigerant, the battery assembly can be cooled by the refrigerant circulating in the plate assembly. The plate assemblies in this embodiment may be the plate assemblies 10-90 and plate assemblies 10 '-90' described above. Of course, the plate package may also be some variation of the plate package described above.

Referring to fig. 57, fig. 57 illustrates a battery heat exchange system, which includes a compressor 6, a condenser 7, and a battery assembly, where the battery assembly includes a plate assembly and a battery portion 5, the plate assembly is fixed to the battery portion 5, the plate assembly includes a flat main body portion, at least a part of the battery portion is located in the flat main body portion, the battery assembly further includes a first interface and a second interface, an outlet of the compressor is communicated with the condenser, the condenser is communicated with the first interface of the battery assembly, and the second interface of the battery assembly is communicated with an inlet of the compressor.

The high-temperature high-pressure refrigerant at the outlet of the compressor 6 enters the condenser 7, releases heat outwards in the condenser 7 to become high-pressure lower-temperature refrigerant, the high-pressure lower-temperature refrigerant enters the battery assembly from the first interface of the battery assembly, is throttled and depressurized by the expansion part of the battery assembly to become lower-pressure lower-temperature refrigerant, then enters the flat main body part of the plate assembly, absorbs the heat of the battery in the flat main body part of the plate assembly to become lower-pressure higher-temperature refrigerant, and the lower-pressure higher-temperature refrigerant leaves from the second interface of the battery assembly to enter the compressor 6. This achieves the effect that the refrigerant cools the battery within the battery assembly. Of course, when the battery heating device is used for heating the battery, fluid from the compressor firstly passes through the flat main body part, releases heat to the outside at the flat main body part, and then is throttled and depressurized through the expansion part. The flat body portion now acts as a condenser and can be used for heating the battery.

The battery heat exchanging system may be part of a thermal management system for the vehicle or may also be dedicated for battery cooling/heating, i.e. the vehicle is provided with a dedicated battery heat exchanging system.

As an embodiment, the battery heat exchange system includes an expansion part 4, and referring to fig. 58, the battery heat exchange system includes a temperature sensor for measuring a temperature of the battery part, and the expansion part 4 includes a control part, a signal receiving part, a signal transmitting part, and a coil part;

the signal receiving part receives a signal of the temperature sensor or a feedback signal of the temperature sensor from the outside and sends the signal to the control part;

the control part outputs a control signal to the signal sending part according to the signal sent by the signal receiving part;

the signal transmitting unit transmits a command signal to the coil unit; the core portion of the expansion portion is driven by the coil portion, the needle is movable in an axial direction of the core portion relative to a wall portion of the core portion forming the orifice, a gap is allowed between the needle and the wall portion of the core portion forming the orifice, or the needle is inserted into the orifice.

In the above embodiment, the expansion unit 4 is electrically operated to the coil unit to cause the movement of the needle, and thus high control accuracy can be obtained. The battery heat exchange system adopts the expansion part 4, so that the expansion part can change the flow rate more quickly according to the temperature response of the battery, thereby ensuring that the temperature of each part of the battery is in a target temperature range and the temperature difference between the batteries is not large, and improving the efficiency and the service life of the battery; in addition, the battery heat exchange system can realize lower superheat degree control or even zero superheat degree control, can ensure that the plate assembly and the battery exchange heat fully, and improves COP of the battery heat exchange system.

Of course, when the battery heat exchange system is a part of a vehicle thermal management system, the battery heat exchange system includes a control part and a temperature sensor, the temperature sensor is used for measuring the temperature of the battery, and the expansion part includes the signal receiving part and the coil part;

the control part sends a signal to the signal receiving part according to the information obtained by the temperature sensor;

the signal receiving part receives the signal sent by the control part and sends an instruction signal to the coil part;

the core portion of the expansion portion is driven by the coil portion, the needle is movable in an axial direction of the core portion relative to a wall portion of the core portion forming the orifice, a gap is allowed between the needle and the wall portion of the core portion forming the orifice, or the needle is inserted into the orifice. The control part is, for example, a control core body for controlling the vehicle thermal management system, and the control core body of the vehicle thermal management system directly controls the action of the expansion part, so that the operation is convenient, the trouble of installing the control core body on the expansion part is eliminated, and the cost is saved.

It should be noted that: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that various combinations, modifications and equivalents of the present invention can be made by those skilled in the art, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention are encompassed by the claims of the present invention.

Claims

1. A plate assembly comprises a first current collecting portion, more than two flat main portions and a second current collecting portion, wherein the first current collecting portion and the second current collecting portion are arranged on two sides of the flat main portions, the first current collecting portion comprises a first block portion, a first current collecting portion and a second current collecting portion, the first current collecting portion comprises a first chamber, the second current collecting portion comprises a second chamber, and the first block portion is connected with the first current collecting portion and the second current collecting portion;

the plate assembly includes a first port communicable with the first chamber, the first port communicable with the fluid channel, and a second port communicable with the second chamber;

the first block body part comprises a first communication port and a second communication port, the first communication port is communicated with the first cavity, the second communication port is communicated with the second cavity, and the first communication port and the second communication port are arranged in a back direction;

one end of the first collector part is welded and fixed to the wall portion of the first block body, which forms the first communication port, and one end of the second collector part is welded and fixed to the wall portion of the first block body, which forms the second communication port; the first block body includes a mounting aperture, and the plate assembly includes an expansion, at least a portion of the expansion being located in the mounting aperture.

2. The panel assembly of claim 1, wherein: the first collector part side part is provided with a first groove, the second collector part side part is provided with a first groove, and the second collector part side part is provided with a second groove, wherein the side parts refer to the first collector part, the second collector part and the second collector part peripheral side position; the first grooves of the first collector part extend towards the length direction of the first collector part, the first grooves of the second collector part extend towards the length direction of the second collector part, and the first grooves of the first collector part are arranged at intervals; the first slots of the second collector portion are arranged at intervals; the second grooves extend in the length direction of the second collecting part, and are arranged at intervals;

the flat main body parts are arranged in parallel and are arranged at intervals, the flat main body parts comprise first end parts and second end parts, and the first end parts are matched and fixed with the wall parts of the first grooves formed by the first current collector parts or the wall parts of the first grooves formed by the second current collector parts; the second end part and the wall part of the second groove formed by the second current collecting part are matched and fixed.

3. The panel assembly of claim 1, wherein: the length of the flat main body part is far larger than the height of the flat main body part, the width of the flat main body part is far larger than the height of the flat main body part, and the fluid channel is arranged along the length direction of the flat main body part; each of the flat body portions is provided with a plurality of the fluid passages, and the number of the fluid passages communicating with the first chamber and the number of the fluid passages communicating with the second chamber are substantially the same.

4. A plate package according to any one of claims 1-3, characterized in that: the first block body part comprises a first connecting channel, a second connecting channel, a first communicating port and a second communicating port, the first connecting channel is communicated with the mounting hole, the second connecting channel is communicated with the mounting hole, the first communicating port is communicated with the second connecting channel, the first communicating port is communicated with the first chamber, the second communicating port is communicated with the second chamber, the connecting port of the first connecting channel and the mounting hole is defined as a first port, the connecting port of the second connecting channel and the mounting hole is defined as a second port, the extending direction of the mounting hole is taken as the height direction, and the heights of the first port and the second port are different;

the first interface is a port of the first connecting channel, the second interface is a port of the second connecting channel, and the first interface and the second interface are located on the same side of the first block body.

5. The panel assembly of claim 4, wherein: the expansion part comprises a core part and a coil part, and the coil part and the core part are assembled and fixed; at least part of the expansion part and the wall part of the first block body part forming the mounting hole are assembled and fixed;

the core portion includes a valve needle, a valve port communicating with the first connecting passage, and an orifice communicating with the second connecting passage, a gap being able to be left between the valve needle and a wall portion of the core portion forming the orifice, or the valve needle extends into the orifice and blocks communication between the second connecting passage and the valve port.

6. A plate package according to any one of claims 1-3, characterized in that: the first block body part comprises a third connecting channel and a fourth connecting channel, the third connecting channel is communicated with the first communicating port, the fourth connecting channel is communicated with the second communicating port, the third connecting channel is a bent channel, and the fourth connecting channel is a bent channel; the first connecting channel is communicated with the first chamber, the second connecting channel is communicated with the second chamber, the first interface is communicated with the first connecting channel, and the second interface is communicated with the second connecting channel; the port of the third connecting channel and the port of the fourth connecting channel are located on the same side of the first block body.

7. The panel assembly of claim 6, wherein: the plate assembly comprises an expansion portion, the first interface and the second interface are located in the expansion portion, the expansion portion comprises an orifice, a valve core portion and a temperature sensing portion, the orifice is communicated with the second interface, a gap can be reserved between the valve core portion and a wall portion of the expansion portion, which forms the orifice, or the valve core portion seals the orifice and blocks communication between the orifice and the first interface.

8. A battery assembly comprising a plate assembly according to any one of claims 1-7 and a battery part, the plate assembly comprising a flat body portion, at least part of the battery part being arranged in contact with the flat body portion or by a heat conducting element; the battery part is assembled and fixed with the flat main body part.

9. A battery heat exchange system, the battery heat exchange system comprising a compressor, a condenser, a battery assembly, the battery assembly according to claim 8, the battery assembly comprising a plate assembly and a battery portion, the plate assembly being fixedly disposed with the battery portion, the plate assembly comprising a flat main body portion, at least a portion of the battery portion being disposed in contact with the flat main body portion or disposed in contact with the flat main body portion by disposing a heat conducting element; the plate assembly further includes a first interface and a second interface, the outlet of the compressor is in communication with the condenser, the condenser is in communication with the first interface, and the second interface is in communication with the inlet of the compressor.