CN222338365U - Heat exchange components and battery packs - Google Patents
Heat exchange components and battery packs Download PDFInfo
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- CN222338365U CN222338365U CN202420901721.9U CN202420901721U CN222338365U CN 222338365 U CN222338365 U CN 222338365U CN 202420901721 U CN202420901721 U CN 202420901721U CN 222338365 U CN222338365 U CN 222338365U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
本申请涉及一种换热组件及电池包，其中，换热组件包括第一换热板、第二换热板和集液箱，第一换热板包括依次连通的第一进液流道、第一中间流道和第一出液流道，第二换热板包括依次连通的第二进液流道、第二中间流道和第二出液流道，集液箱包括第一腔室和第二腔室，第一腔室与第二腔室中的一者同时连通于第一进液流道和第二进液流道，另一者连通于第一出液流道，第二出液流道连通于第一中间流道或者第一出液流道。根据本申请实施例，能够提高换热效率，可简化换热组件整体与外部水路的连接位置数量，进而可提高换热组件整体与周边件的装配效率。
The present application relates to a heat exchange assembly and a battery pack, wherein the heat exchange assembly includes a first heat exchange plate, a second heat exchange plate and a liquid collecting tank, the first heat exchange plate includes a first liquid inlet channel, a first intermediate channel and a first liquid outlet channel connected in sequence, the second heat exchange plate includes a second liquid inlet channel, a second intermediate channel and a second liquid outlet channel connected in sequence, the liquid collecting tank includes a first chamber and a second chamber, one of the first chamber and the second chamber is connected to the first liquid inlet channel and the second liquid inlet channel at the same time, the other is connected to the first liquid outlet channel, and the second liquid outlet channel is connected to the first intermediate channel or the first liquid outlet channel. According to the embodiments of the present application, the heat exchange efficiency can be improved, the number of connection positions of the heat exchange assembly as a whole and the external waterway can be simplified, and the assembly efficiency of the heat exchange assembly as a whole and the surrounding parts can be improved.
Description
Technical Field
The application relates to the technical field of battery packs, in particular to a heat exchange assembly and a battery pack.
Background
Along with the rapid development of new energy electric vehicle technology, the requirements of various whole vehicle factories on the use performance of high-power energy such as battery fast charge and fast discharge are higher, under the severe application situation, the heat generation quantity of a battery pack can be rapidly increased, and if the heat cannot be timely taken away, the service life and the safety of the battery can be seriously affected.
The battery pack generally comprises a plurality of battery modules, each battery module is composed of a plurality of battery cells, lugs used for leading out positive and negative electrodes of the battery cells are arranged above each battery cell, and all lugs of the battery modules are required to be connected in series or in parallel through conductive connecting pieces and then output electric energy outwards integrally.
At present, the heat management mode of the battery pack mainly comprises the steps of paving a heat exchange plate at the bottom of the battery module, exchanging heat through a heat exchange medium in the heat exchange plate, and taking heat of the battery away from the battery pack, so that heat dissipation of the battery module is realized. However, for high-power application scenes such as fast battery charging and fast battery discharging, the current battery pack heat management mode is difficult to achieve a good heat dissipation effect.
Disclosure of utility model
The embodiment of the application provides a heat exchange assembly and a battery pack, which can improve heat exchange efficiency, simplify the number of connection positions of the whole heat exchange assembly and an external waterway, and further improve the assembly efficiency of the whole heat exchange assembly and peripheral parts.
In a first aspect, the embodiment of the application provides a heat exchange assembly, which comprises a first heat exchange plate, a second heat exchange plate and a liquid collecting box, wherein the first heat exchange plate comprises a first liquid inlet channel, a first middle channel and a first liquid outlet channel which are sequentially communicated, the plate surface of the first heat exchange plate is perpendicular to a first direction, the second heat exchange plate comprises a second liquid inlet channel, a second middle channel and a second liquid outlet channel which are sequentially communicated, the second heat exchange plate and the first heat exchange plate are arranged at intervals along the first direction, one of the first heat exchange plate and the second heat exchange plate is used for being installed at the bottom of a battery module, the other one of the first heat exchange plate and the second heat exchange plate is used for being installed at the top of the battery module, the liquid collecting box comprises a first cavity and a second cavity, the first cavity is used for inputting heat exchange media, the second cavity is used for outputting heat exchange media, a first partition plate is arranged between the first cavity and the second cavity, one of the first cavity and the second cavity is simultaneously communicated with the first liquid inlet channel and the second liquid inlet channel, the other cavity is communicated with the first liquid outlet channel, and the second liquid outlet channel is communicated with the first middle channel.
In some embodiments, the first chamber is simultaneously communicated with the first liquid inlet flow channel and the second liquid inlet flow channel, the first chamber comprises a first subchamber, the first liquid inlet flow channel is communicated with the first subchamber, the second liquid inlet flow channel is communicated with the second subchamber, a second partition plate is arranged between the first subchamber and the second subchamber, and a flow dividing structure is arranged in the first chamber and close to a liquid inlet of the first chamber and used for dividing heat exchange medium input by the liquid inlet into the first subchamber and the second subchamber.
In some embodiments, the first subchamber is positioned close to the first heat exchange plate relative to the second subchamber along the first direction, the flow dividing structure comprises a water dividing pipe fixedly connected to the second baffle plate, one end of the water dividing pipe is communicated with the first subchamber, the other end of the water dividing pipe is positioned close to the liquid inlet, and a gap is arranged between the water dividing pipe and the liquid inlet.
In some embodiments, the first heat exchange plate comprises a plate body, a first liquid inlet channel, a first middle channel and a first liquid outlet channel, wherein the first liquid inlet channel, the first middle channel and the first liquid outlet channel are all arranged on one side of the plate body, close to the second heat exchange plate, the cover body covers one side of the plate body, close to the second heat exchange plate, the liquid collecting box is welded on one side of the cover body, close to the second heat exchange plate, the side face, facing the cover body, of the liquid collecting box is provided with a first cavity channel, the cover body is provided with a first through hole communicated with the first liquid inlet channel, one end of the first cavity channel is communicated with the first liquid inlet channel, the other end of the first cavity channel is communicated with the first liquid inlet channel through the first through hole, the second cavity channel is provided with a second through hole communicated with the first liquid outlet channel, one end of the second cavity is communicated with the second cavity, and the other end of the second cavity channel is communicated with the first liquid outlet channel through the second through hole.
In some embodiments, the first liquid inlet channel and the first liquid outlet channel are all provided with a plurality of, one of the first liquid inlet channel and the first liquid outlet channel is communicated with the other through at least one first middle channel, the first cavity channels are arranged in one-to-one correspondence with the first liquid inlet channels, and the second cavity channels are arranged in one-to-one correspondence with the first liquid outlet channels.
In some embodiments, the liquid collecting box further comprises a first connector communicated with the first cavity, one end of the first connector, which is close to the first cavity, is fixedly connected with the liquid inlet, the first connector inputs heat exchange medium into the first cavity through the liquid inlet, and a second connector communicated with the liquid outlet of the second cavity, one end of the second connector, which is close to the second cavity, is fixedly connected with the liquid outlet, and the second connector outputs the heat exchange medium in the second cavity through the liquid outlet.
In some embodiments, the second liquid inlet channel, the second middle channel and the second liquid outlet channel are all in a tubular structure, and the plurality of second middle channels are distributed at intervals along a second direction, the second direction is perpendicular to the first direction, and one side of the second middle channel facing the battery module is used for being attached to the conductive connecting piece of the battery module.
In some embodiments, the header tank, the second liquid inlet channel, the second intermediate channel and the second liquid outlet channel are sequentially distributed along a third direction, the third direction is perpendicular to the first direction and the second direction at the same time, the second liquid outlet channel is provided with a first water gap, a second water gap is arranged at a position, close to the first water gap, of the first heat exchange plate, the second liquid outlet channel is communicated with the first intermediate channel through the first water gap and the second water gap, and the second water gap is perpendicular to the heat exchange plate.
In some embodiments, along the second direction, more than two second liquid inlet channels are arranged, the second liquid outlet channels are arranged in one-to-one correspondence with the second liquid inlet channels, the liquid collecting box further comprises third connectors communicated with the second subchambers, the third connectors are arranged in one-to-one correspondence with the second liquid inlet channels, and the second liquid inlet channels are communicated with the third connectors through the flow guide pipes.
In a second aspect, an embodiment of the present application provides a battery pack including the heat exchange assembly described above.
The heat exchange assembly and the battery pack comprise a first heat exchange plate, a second heat exchange plate and a liquid collecting box, wherein the first heat exchange plate comprises a first liquid inlet flow channel, a first middle flow channel and a first liquid outlet flow channel which are sequentially communicated, the second heat exchange plate comprises a second liquid inlet flow channel, a second middle flow channel and a second liquid outlet flow channel which are sequentially communicated, one of the first heat exchange plate and the second heat exchange plate is used for being mounted at the bottom of the battery module, the other is used for being mounted at the top of the battery module, the liquid collecting box comprises a first cavity and a second cavity, the first cavity is used for inputting heat exchange medium, the second cavity is used for outputting heat exchange medium, one of the first cavity and the second cavity is simultaneously communicated with the first liquid inlet flow channel and the second liquid inlet flow channel, the other is communicated with the first liquid outlet flow channel, and the second liquid outlet flow channel is communicated with the first middle flow channel or the first liquid outlet flow channel. Through setting up the liquid collecting box, only need communicate first cavity and second cavity to outside liquid way respectively, can form the circulation of the heat transfer medium, can simplify the whole and external liquid way of heat transfer assembly's hookup location quantity, and then can improve the assembly efficiency of the whole and peripheral spare of heat transfer assembly.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are needed to be used in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a heat exchange assembly according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a liquid collecting tank according to an embodiment of the present application;
FIG. 3 is a schematic view illustrating an internal structure of a first chamber according to an embodiment of the present application;
FIG. 4 is a schematic diagram of the internal structure of a second chamber according to an embodiment of the present application;
FIG. 5 is a schematic view of the internal structure of the first chamber and the second chamber according to another view angle provided by the embodiment of the application;
fig. 6 is a schematic structural diagram of a first heat exchange plate according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a second heat exchange plate according to an embodiment of the present application;
Fig. 8 is an exploded view of a battery pack according to an embodiment of the present application.
The heat exchange plate comprises a first heat exchange plate, a first water gap, a second water gap, a cover body, a 103, a plate body, a 104, a first liquid inlet channel, a 105, a first liquid outlet channel, a 106, a first middle channel, a 2, a second heat exchange plate, a 201, a second liquid inlet channel, a 202, a second middle channel, a 203, a second liquid outlet channel, a 204, a first water gap, a 205, a flow guide pipe, a 3, a liquid collecting box, a 301, a first connector, a 302, a second connector, a 303, a third connector, a 304, a water diversion pipe, a 305, a second baffle plate, a 306, a first cavity channel, a 307, a first cavity, a 3071, a second subchamber, a 3072, a first subchamber, a 308, a second cavity, a 309, a second cavity channel, a 310, a first baffle plate, a 4, a heat conducting insulating strip, a 5, a battery module, a 6, a lug, a 7, a conductive connecting piece and a 8, a heat conducting insulating pad.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the particular embodiments described herein are meant to be illustrative of the application only and not limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element.
At present, the heat management mode of the battery pack mainly comprises the steps of paving a heat exchange plate at the bottom of the battery module, exchanging heat through a heat exchange medium in the heat exchange plate, and taking heat of the battery away from the battery pack, so that heat dissipation of the battery module is realized. The inventor discovers that for high-power application scenes such as quick charge and quick discharge of a battery, the current battery pack heat management mode is difficult to achieve a good heat dissipation effect.
In order to solve the problems in the prior art, the embodiment of the application provides a heat exchange assembly and a battery pack. The following detailed description refers to the accompanying drawings.
Fig. 1 is a schematic structural view of a heat exchange assembly provided by an embodiment of the present application, fig. 2 is a schematic structural view of a header tank provided by an embodiment of the present application, fig. 3 is a schematic structural view of a first chamber provided by an embodiment of the present application, and fig. 4 is a schematic structural view of a second chamber provided by an embodiment of the present application;
Fig. 5 is a schematic view of an internal structure of a first chamber and a second chamber according to another view angle provided by an embodiment of the present application, fig. 6 is a schematic view of a first heat exchange plate according to an embodiment of the present application, and fig. 7 is a schematic view of a second heat exchange plate according to an embodiment of the present application.
Referring to fig. 1 to 7, an embodiment of the present application provides a heat exchange assembly, which includes a first heat exchange plate 1, a second heat exchange plate 2 and a header tank 3, wherein the first heat exchange plate 1 includes a first liquid inlet channel 104, a first middle channel 106 and a first liquid outlet channel 105 which are sequentially communicated, a plate surface of the first heat exchange plate 1 is perpendicular to a first direction, the second heat exchange plate 2 includes a second liquid inlet channel 201, a second middle channel 202 and a second liquid outlet channel 203 which are sequentially communicated, the second heat exchange plate 2 and the first heat exchange plate 1 are arranged at intervals along the first direction, one of the first heat exchange plate 1 and the second heat exchange plate 2 is used for being mounted to a bottom of the battery module 5, the other is used for being mounted to a top of the battery module 5, the header tank 3 includes a first chamber 307 and a second chamber 308, the first chamber 307 is used for inputting a heat exchange medium from an external liquid channel, the second chamber 308 is used for outputting the heat exchange medium to the external liquid channel, a first partition 310 is arranged between the first chamber 307 and the second chamber 308, one of the first chamber 307 and the second chamber 308 is simultaneously communicated with the first liquid inlet channel 104 and the first liquid inlet channel 105 or the second chamber 308 is simultaneously communicated with the first chamber 201 and the second liquid inlet channel 105.
Specifically, in the present embodiment, the first chamber 307 is simultaneously connected to the first liquid inlet channel 104 and the second liquid inlet channel 201, and the second chamber 308 is connected to the first liquid outlet channel 105. The heat exchange medium is input into the first chamber 307 from the external liquid path, one part of the heat exchange medium flows through the first liquid inlet flow path 104, the first middle flow path 106 and the first liquid outlet flow path 105, then enters the second chamber 308 and is output to the external liquid path through the second chamber 308, and the other part of the heat exchange medium flows through the second liquid inlet flow path 201, the second middle flow path 202 and the second liquid outlet flow path 203, then enters the second chamber 308 through the first middle flow path 106 and the first liquid outlet flow path 105 or only through the first liquid outlet flow path 105 and is output to the external liquid path through the second chamber 308. In the process that the heat exchange medium flows through the first heat exchange plate 1 and the second heat exchange plate 2, the heat exchange with the battery module 5 can be realized due to the temperature difference between the heat exchange medium and the battery module 5, so that the heat exchange effect is achieved.
The double-layer heat exchange structure is formed by arranging the first heat exchange plate 1 and the second heat exchange plate 2, so that the overall heat exchange efficiency of the heat exchange assembly can be improved, a battery can be well adapted to high-power application scenes such as fast charging and fast discharging, in addition, when the second liquid outlet flow passage 203 is communicated with the first middle flow passage 106, after the heat exchange medium flowing out of the second liquid outlet flow passage 203 is converged with the heat exchange medium in the first middle flow passage 106, the flow rate of the heat exchange medium flowing through the corresponding first middle flow passage 106 and the first liquid outlet flow passage 105 can be relatively improved, the heat exchange efficiency of the corresponding area of the first heat exchange plate 1 can be improved, and the circulation of the heat exchange medium can be formed by arranging the liquid collecting box 3, only the first cavity 307 and the second cavity 308 are respectively communicated with an external liquid passage, the number of connection positions of the whole heat exchange assembly and the external liquid passages can be simplified, and the assembly efficiency of the whole heat exchange assembly and peripheral parts can be improved.
In some embodiments, the first cavity 307 includes a first subchamber 3072, a second subchamber 3071, and a flow dividing structure, the first liquid inlet channel 104 is communicated with the first subchamber 3072, the second liquid inlet channel 201 is communicated with the second subchamber 3071, a second partition 305 is disposed between the first subchamber 3072 and the second subchamber 3071, the flow dividing structure is disposed in the first cavity 307 at a position close to a liquid inlet of the first cavity 307, and the flow dividing structure is used for dividing the heat exchange medium input by the liquid inlet into the first subchamber 3072 and the second subchamber 3071. The heat exchange medium input into the first cavity 307 is split through the split structure, so that the flow ratio of the heat exchange medium entering the first subchamber 3072 and the second subchamber 3071 can be controlled, the flow of the heat exchange medium entering the first heat exchange plate 1 and the second heat exchange plate 2 is further controlled, and finally the heat exchange efficiency of the first heat exchange plate 1 and the second heat exchange plate 2 can be controlled. The designer can design a specific split structure according to the split structure, so that the first heat exchange plate 1 and the second heat exchange plate 2 can both meet the preset heat dissipation requirement.
In some embodiments, the first subchamber 3072 is positioned in close proximity to the first heat exchanger plate 1 relative to the second subchamber 3071 in the first direction, facilitating communication of the first subchamber 3072 with the first heat exchanger plate 1, which may simplify the overall structure of the heat exchange assembly.
In some embodiments, the diversion structure includes a diversion pipe 304 fixedly connected to the second partition 305, one end of the diversion pipe 304 is connected to the first subchamber 3072, the other end of the diversion pipe 304 is located near the liquid inlet, a gap is provided between the diversion pipe 304 and the liquid inlet, and in the early design, the flow ratio of the heat exchange medium entering the first subchamber 3072 and the second subchamber 3071 can be adjusted by adjusting the inner diameter ratio of the diversion pipe 304 to the inner diameter of the first joint 301.
In some embodiments, the first heat exchange plate 1 includes a plate body 103 and a cover body 102, the first liquid inlet flow channel 104, the first middle flow channel 106 and the first liquid outlet flow channel 105 are all disposed on one side of the plate body 103 close to the second heat exchange plate 2, the cover body 102 is covered on one side of the plate body 103 close to the second heat exchange plate 2, and the header tank 3 is welded on one side of the cover body 102 close to the second heat exchange plate 2. The first heat exchange plate 1 formed by the plate body 103 and the cover body 102 has relatively uniform heat exchange capacity at all positions of the cover body 102, so that the temperature at all positions of the bottom of the battery module 5 can be ensured to have relatively high consistency.
In some embodiments, the side of the header tank 3 facing the cover 102 is provided with a first cavity 306 and a second cavity 309, the cover 102 is provided with a first through hole communicated with the first liquid inlet channel 104, one end of the first cavity 306 is communicated with the first subchamber 3072, the other end of the first cavity 306 is communicated with the first liquid inlet channel 104 through the first through hole, the cover 102 is provided with a second through hole communicated with the first liquid outlet channel 105, one end of the second cavity 309 is communicated with the second cavity 308, and the other end of the second cavity 309 is communicated with the first liquid outlet channel 105 through the second through hole. Through setting up first chamber way 306, second chamber way 309, first through-hole and second through-hole for when header 3 directly welds to lid 102, can accomplish the intercommunication of first subchamber 3072 and first feed liquor runner 104 simultaneously, and the intercommunication of second cavity 308 and first drain runner 105, can simplify the overall structure of heat exchange assembly, improves the integrated level. In the view angles of fig. 1, 6 and 8, the first and second through holes are not shown because they are blocked by the header tank 3.
In some embodiments, the first liquid inlet channels 104 and the first liquid outlet channels 105 are provided in plurality, one of the first liquid inlet channels 104 and the first liquid outlet channels 105 is communicated with the other through at least one first middle channel 106, the first cavity channels 306 are arranged in one-to-one correspondence with the first liquid inlet channels 104, and the second cavity channels 309 are arranged in one-to-one correspondence with the first liquid outlet channels 105. Compared with a single-inlet and single-outlet heat exchange plate formed by only one first liquid inlet flow passage 104 and one first liquid outlet flow passage 105, the multi-inlet and multi-outlet structure of the heat exchange medium is realized on the premise of achieving the same heat dissipation capacity, the flow of each first middle flow passage 106 is shorter, the structure of the heat exchange medium flow passage inside the first heat exchange plate 1 can be simplified, and the internal pressure drop loss is reduced.
In some embodiments, the header 3 further includes a first connector 301 and a second connector 302, the first connector 301 is connected to the first chamber 307, one end of the first connector 301 near the first chamber 307 is fixedly connected to the liquid inlet, the first connector 301 inputs a heat exchange medium into the first chamber 307 through the liquid inlet, the second connector 302 is connected to the liquid outlet of the second chamber 308, one end of the second connector 302 near the second chamber 308 is fixedly connected to the liquid outlet, and the second connector 302 outputs the heat exchange medium in the second chamber 308 through the liquid outlet.
In some embodiments, the second liquid inlet channel 201, the second middle channel 202 and the second liquid outlet channel 203 are all in tubular structures, and the plurality of second middle channels 202 are distributed at intervals along a second direction, the second direction is perpendicular to the first direction, and one side of the second middle channel 202 facing the battery module 5 is used for being attached to the conductive connecting piece 7 of the battery module 5. The battery top heat dissipation area is mainly concentrated at the welding position of the conductive connecting piece 7 and the tab 6, and the second middle flow passage 202 of the tubular structure can conduct targeted heat dissipation on the corresponding area, so that a good heat dissipation effect can be achieved.
In some embodiments, the width of the second intermediate flow channel 202 is greater than or equal to the diameter of the tab 6, so that a better heat exchange effect can be achieved for the whole heat exchange assembly.
In some embodiments, the header 3, the second liquid inlet channel 201, the second intermediate channel 202 and the second liquid outlet channel 203 are sequentially distributed along a third direction, the third direction is perpendicular to the first direction and the second direction, the second liquid outlet channel 203 is provided with a first water gap 204, a position of the first heat exchange plate 1 close to the first water gap 204 is provided with a second water gap 101, the second liquid outlet channel 203 is communicated with the first intermediate channel 106 through the first water gap 204 and the second water gap 101, and the heat exchange medium flowing through the second liquid outlet channel 203 can flow back to the second chamber 308 by the first intermediate channel 106 and the first liquid outlet channel 105 through the first water gap 204 and the second water gap 101, so that the overall structure of the heat exchange assembly is simpler. It should be noted that, the first water gap 204 and the second water gap 101 may be cylindrical tube structures with protruding forms, or may be open structures with hole grooves. When the first water gap 204 and the second water gap 101 are both cylindrical pipe structures in a protruding mode, the first water gap 204 and the second water gap 101 can be communicated in a direct plug-in mode, gaps between the first water gap 204 and the second water gap 101 can be sealed in a welding mode or a sealant mode, when the first water gap 204 and the second water gap 101 are both open structures in a hole groove mode, corresponding pipelines can be connected between the first water gap 204 and the second water gap 101, and accordingly the first water gap 204 is communicated with the second water gap 101.
The second water gap 101 is perpendicular to the heat exchange plate, and through limiting the direction of the second water gap 101, heat exchange medium converges through the mode of jet impact, can strengthen the heat exchange effect of first water gap 204 low reaches, has further promoted the holistic heat exchange effect of heat exchange assembly.
In some embodiments, along the second direction, more than two second liquid inlet channels 201 are provided, the second liquid outlet channels 203 are arranged in one-to-one correspondence with the second liquid inlet channels 201, the header tank 3 further includes a third joint 303 communicated with the second subchamber 3071, the third joint 303 is arranged in one-to-one correspondence with the second liquid inlet channels 201, the second liquid inlet channels 201 are communicated with the third joint 303 through the flow guide pipe 205, and as each channel of the second heat exchange plate 2 is in a tubular structure, the second middle channels 202 need to be attached to the corresponding conductive connecting piece 7 to achieve a higher heat dissipation effect, through the design, tolerance precision of the second heat exchange plate 2 can be installed redundantly, and engineering installation operability and subsequent maintenance feasibility of the actual second heat exchange plate 2 are improved.
In some embodiments, the first joint 301, the second joint 302, and the third joint 303 are all quick structures, facilitating assembly.
Fig. 8 is an exploded view of a battery pack according to an embodiment of the present application.
As shown in fig. 8, an embodiment of the present application further provides a battery pack including the heat exchange assembly in the above embodiment. Specifically, in this embodiment, the battery pack further includes a battery module 5 located between the first heat exchange plate 1 and the second heat exchange plate 2, the bottom of the battery module 5 is abutted to the cover plate of the first heat exchange plate 1 through a heat conducting insulating pad 8, the tabs 6 at the top of the battery module 5 are connected in series and parallel through conductive connecting pieces 7, and each conductive connecting piece 7 is abutted to a corresponding second middle runner 202 through a heat conducting insulating strip 4 at a corresponding position. Wherein, the conductive connecting piece 7 can be selected from aluminum bar, copper bar and the like. It should be noted that, since the battery pack includes the heat exchange assembly in the above embodiment, the battery pack has at least all the beneficial effects brought by the above embodiment, and will not be described in detail herein.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present application, and they should be included in the scope of the present application.
Claims (10)
1. A heat exchange assembly, comprising:
The first heat exchange plate comprises a first liquid inlet flow channel, a first middle flow channel and a first liquid outlet flow channel which are sequentially communicated, and the plate surface of the first heat exchange plate is perpendicular to the first direction;
The second heat exchange plate comprises a second liquid inlet flow passage, a second middle flow passage and a second liquid outlet flow passage which are sequentially communicated, the second heat exchange plate and the first heat exchange plate are arranged at intervals along the first direction, one of the first heat exchange plate and the second heat exchange plate is used for being mounted at the bottom of the battery module, and the other is used for being mounted at the top of the battery module;
The liquid collecting box comprises a first chamber and a second chamber, wherein the first chamber is used for inputting heat exchange media, the second chamber is used for outputting heat exchange media, a first partition plate is arranged between the first chamber and the second chamber, one of the first chamber and the second chamber is simultaneously communicated with the first liquid inlet flow channel and the second liquid inlet flow channel, the other one of the first chamber and the second chamber is communicated with the first liquid outlet flow channel, and the second liquid outlet flow channel is communicated with the first middle flow channel or the first liquid outlet flow channel.
2. The heat exchange assembly of claim 1 wherein the first chamber is in simultaneous communication with the first and second inlet flow passages, the first chamber comprising:
The first liquid inlet channel is communicated with the first subchamber;
The second liquid inlet channel is communicated with the second subchamber, and a second partition plate is arranged between the first subchamber and the second subchamber;
The flow dividing structure is arranged at the position, close to the liquid inlet of the first chamber, in the first chamber and is used for dividing the heat exchange medium input by the liquid inlet into the first subchamber and the second subchamber.
3. The heat exchange assembly of claim 2 wherein, in the first direction, the first subchamber is positioned adjacent to the first heat exchange plate relative to the second subchamber;
The shunt structure comprises a water diversion pipe fixedly connected with the second partition board, one end of the water diversion pipe is communicated with the first subchamber, the other end of the water diversion pipe is located at a position close to the liquid inlet, and a gap is formed between the water diversion pipe and the liquid inlet.
4. The heat exchange assembly of claim 2, wherein the first heat exchange plate comprises a plate body, a cover body, a liquid collecting box and a heat exchange plate, wherein the first liquid inlet flow channel, the first middle flow channel and the first liquid outlet flow channel are all arranged on one side of the plate body, which is close to the second heat exchange plate;
The side surface of the liquid collecting box, which faces the cover body, is provided with a first cavity channel, the cover body is provided with a first through hole communicated with the first liquid inlet channel, one end of the first cavity channel is communicated with the first subchamber, the other end of the first cavity channel is communicated with the first liquid inlet channel through the first through hole, the cover body is provided with a second through hole communicated with the first liquid outlet channel, one end of the second cavity channel is communicated with the second cavity, and the other end of the second cavity channel is communicated with the first liquid outlet channel through the second through hole.
5. The heat exchange assembly of claim 4 wherein the first liquid inlet flow channels and the first liquid outlet flow channels are provided in plurality, one of the first liquid inlet flow channels and the first liquid outlet flow channels is communicated with the other through at least one first intermediate flow channel, the first cavity channels are arranged in one-to-one correspondence with the first liquid inlet flow channels, and the second cavity channels are arranged in one-to-one correspondence with the first liquid outlet flow channels.
6. The heat exchange assembly of claim 2, wherein the header tank further comprises:
The first connector is communicated with the first cavity, one end of the first connector, which is close to the first cavity, is fixedly connected with the liquid inlet, and the first connector inputs a heat exchange medium into the first cavity through the liquid inlet;
the second connector is communicated with the liquid outlet of the second cavity, one end, close to the second cavity, of the second connector is fixedly connected to the liquid outlet, and the second connector outputs a heat exchange medium in the second cavity through the liquid outlet.
7. The heat exchange assembly according to claim 2, wherein the second liquid inlet flow channel, the second middle flow channel and the second liquid outlet flow channel are all in a tubular structure, the plurality of second middle flow channels are distributed at intervals along a second direction, the second direction is perpendicular to the first direction, and one side of the second middle flow channel facing the battery module is used for being attached to a conductive connecting piece of the battery module.
8. The heat exchange assembly of claim 7, wherein the header tank, the second liquid inlet channel, the second intermediate channel and the second liquid outlet channel are sequentially distributed along a third direction, the third direction is perpendicular to the first direction and the second direction at the same time, the second liquid outlet channel is provided with a first water gap, a second water gap is arranged at a position, close to the first water gap, of the first heat exchange plate, the second liquid outlet channel is communicated with the first intermediate channel through the first water gap and the second water gap, and the second water gap is perpendicular to the heat exchange plate.
9. The heat exchange assembly of claim 7 wherein more than two second liquid inlet channels are provided along the second direction, the second liquid outlet channels are arranged in one-to-one correspondence with the second liquid inlet channels, the header tank further comprises a third joint communicated with the second subchamber, the third joint is arranged in one-to-one correspondence with the second liquid inlet channels, and the second liquid inlet channels are communicated with the third joint through a flow guide pipe.
10. A battery pack comprising the heat exchange assembly of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420901721.9U CN222338365U (en) | 2024-04-28 | 2024-04-28 | Heat exchange components and battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420901721.9U CN222338365U (en) | 2024-04-28 | 2024-04-28 | Heat exchange components and battery packs |
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| Publication Number | Publication Date |
|---|---|
| CN222338365U true CN222338365U (en) | 2025-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420901721.9U Active CN222338365U (en) | 2024-04-28 | 2024-04-28 | Heat exchange components and battery packs |
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| Country | Link |
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| CN (1) | CN222338365U (en) |
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