CN115692935A - Battery heat exchange integrated structure and thermal management system - Google Patents

Abstract

The application relates to a battery heat exchange integrated structure and a heat management system, wherein the battery heat exchange integrated structure comprises a middle heat exchange plate, a first heat exchange plate and a second heat exchange plate; the plurality of first heat exchange plates are arranged on one side of the middle heat exchange plate at intervals, and adjacent first heat exchange plates and the middle heat exchange plate are arranged in an enclosing mode to form a first fixing groove which is used for fixing one or more first battery modules; a plurality of second heat transfer board intervals set up in the one side that middle heat transfer board deviates from first heat transfer board, and adjacent second heat transfer board encloses with middle heat transfer board and establishes and form the second fixed slot, and the second fixed slot is used for fixed one or more second battery module. The application provides a battery heat transfer integrated configuration and thermal management system, it is too much with the quantity of fixed bolster to have solved the quantity of the cooling plate that each electric core corresponds, leads to holistic weight of battery package and volume to all increase by a wide margin to reduce the energy density of battery package and increased the installation space's of battery package problem.

Description

Battery heat exchange integrated structure and thermal management system

Technical Field

The application relates to the technical field of battery heat management, in particular to a battery heat exchange integrated structure and a heat management system.

Background

When the electric automobile runs under different driving conditions, the battery generates a large amount of heat, and the service life and the performance of the battery are reduced due to the overhigh temperature of the battery, so that the battery needs to be cooled. At present, the battery is cooled by a cooling plate, in order to ensure the cooling effect, the bottom and the side of each battery core need to be provided with an independent cooling plate, and the cooling plate needs to be installed and fixed by a special fixing support. So, the quantity of the cooling plate that each electricity core corresponds and the quantity of fixed bolster are too much, lead to the holistic weight of battery package and volume all to increase by a wide margin to reduce the energy density of battery package and increased the installation space of battery package.

Disclosure of Invention

Based on this, it is necessary to provide a battery heat exchange integrated structure and a thermal management system to solve the problem that the number of cooling plates and the number of fixing brackets corresponding to each battery cell are too large, which results in that the overall weight and the volume of the battery pack are both greatly increased, thereby reducing the energy density of the battery pack and increasing the installation space of the battery pack.

The battery heat exchange integrated structure comprises a middle heat exchange plate, a first heat exchange plate and a second heat exchange plate; one end of each first heat exchange plate is connected with the middle heat exchange plate, the other end of each first heat exchange plate extends towards the direction far away from the middle heat exchange plate, a plurality of first heat exchange plates are arranged on one side of the middle heat exchange plate at intervals, a first fixing groove is formed by surrounding adjacent first heat exchange plates and the middle heat exchange plate, the first fixing groove is used for fixing one or more first battery modules, the bottoms of the first battery modules are attached to the middle heat exchange plate, and two opposite sides of each first battery module are respectively attached to the adjacent first heat exchange plates; the middle heat exchange plate is connected to second heat exchange plate one end, and the other end extends towards the direction of keeping away from middle heat exchange plate, and a plurality of second heat exchange plate intervals set up in one side that middle heat exchange plate deviates from first heat exchange plate, and adjacent second heat exchange plate and middle heat exchange plate enclose to establish and form the second fixed slot, and the second fixed slot is used for fixed one or more second battery module, and the bottom subsides of second battery module locate middle heat exchange plate, and the both sides that the second battery module is relative are subsided respectively and are located adjacent second heat exchange plate.

In one embodiment, the first heat exchange plate is provided with a first heat exchange channel, the second heat exchange plate is provided with a second heat exchange channel, the intermediate heat exchange plate is provided with an intermediate heat exchange channel, the liquid inlet end of the first heat exchange channel and the liquid inlet end of the second heat exchange channel are respectively communicated with the liquid inlet end of the intermediate heat exchange channel, and the liquid outlet end of the first heat exchange channel and the liquid outlet end of the second heat exchange channel are respectively communicated with the liquid outlet end of the intermediate heat exchange channel.

In one embodiment, the first heat exchange plate is arranged above the middle heat exchange plate, and the second heat exchange plate is arranged below the middle heat exchange plate; first heat transfer board is equipped with flaring portion, and middle heat transfer passageway passes through flaring portion intercommunication first heat transfer passageway, and the cross-sectional area of flaring portion is the expansion form from the one end of communicating first heat transfer passageway to the one end of communicating middle heat transfer passageway, and second heat transfer board is equipped with the throat portion, and middle heat transfer passageway passes through throat portion intercommunication second heat transfer passageway, and the cross-sectional area of throat portion is the shrink form from the one end of communicating second heat transfer passageway to the one end of communicating middle heat transfer passageway to, the biggest cross-sectional area of flaring portion is greater than the minimum cross-sectional area of throat portion.

In one embodiment, the maximum inner diameter a of the flared portion, the minimum inner diameter b of the flared portion, the maximum inner diameter c of the constricted portion and the minimum inner diameter d of the constricted portion satisfy d < b < c < a.

In one embodiment, the intermediate heat exchange plate comprises a first cover plate, a second cover plate and a central main plate, the central main plate is provided with a communicating groove penetrating through the central main plate along the thickness direction, and the first cover plate and the second cover plate are respectively covered on two sides of the central main plate along the thickness direction of the central main plate and enclose the communicating groove to form an intermediate heat exchange channel.

In one embodiment, the communicating groove comprises a liquid inlet collecting groove and a liquid outlet collecting groove, and the communicating groove further comprises a plurality of liquid dividing grooves arranged in parallel, and the liquid dividing grooves are respectively communicated with the liquid inlet collecting groove and the liquid outlet collecting groove.

In one embodiment, the battery heat exchange integrated structure further comprises a liquid inlet main pipe and a liquid outlet main pipe, wherein the liquid inlet main pipe is communicated with the liquid inlet end of the intermediate heat exchange plate, and the liquid outlet main pipe is communicated with the liquid outlet end of the intermediate heat exchange plate.

In one embodiment, the first heat exchange plate and the second heat exchange plate are arranged in a wave-shaped bent mode;

or, first heat transfer board and second heat transfer board all are the notch cuttype and buckle the setting.

In one embodiment, the first heat exchange plate and the second heat exchange plate are welded to both sides of the middle heat exchange plate respectively;

or the first heat exchange plate and the second heat exchange plate are clamped with the middle heat exchange plate;

or the first heat exchange plate and the second heat exchange plate are detachably connected with the middle heat exchange plate through fasteners.

The application further provides a thermal management system, which comprises the battery heat exchange integrated structure in any one of the above embodiments.

Compared with the prior art, the battery heat exchange integrated structure and the heat management system provided by the application have the advantages that the first heat exchange plate is shared by the adjacent first battery modules, the second heat exchange plate is shared by the adjacent second battery modules, and further, the middle heat exchange plate is shared by the first battery modules and the second battery modules. Therefore, by the arrangement, the number of total heat exchange plates (including the heat exchange plates arranged on the side edges and the heat exchange plates arranged on the bottom) required by the first battery module and the second battery module is greatly reduced, so that the weight and the volume of the whole battery pack are reduced on the basis of ensuring the heat exchange efficiency of the battery modules (including the first battery module and the second battery module), the energy density of the battery pack is improved, and the installation space of the battery pack is reduced.

Further, since the first fixing groove can fix one or more first battery modules, and the second fixing groove can fix one or more second battery modules. Consequently, first heat transfer board, second heat transfer board and middle heat transfer board enclose the structure of establishing formation and can also be used for fixed first battery module of installation and second battery module, also promptly, the battery heat transfer integrated structure that this application provided need not to set up in addition that the installing support is used for installing first battery module and second battery module.

To sum up, the battery heat exchange integrated structure that this application provided has effectively solved the quantity of the cooling plate that each electric core corresponds and the quantity of fixed bolster too much, leads to the holistic weight of battery package and volume to all increase by a wide margin to the energy density of battery package has been reduced and the problem of the installation space of battery package has been increased.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a battery heat exchange integrated structure according to an embodiment of the present disclosure;

fig. 2 is an exploded view of a battery heat exchange integrated structure according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a central main board according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional view of the connection of the inlet ends of the first heat exchange plate, the second heat exchange plate and the intermediate heat exchange plate according to an embodiment of the disclosure;

FIG. 5 is a schematic illustration of a first heat exchange plate according to another embodiment provided herein;

FIG. 6 is a schematic flow diagram of a heat exchange medium in the first heat exchange plate according to an embodiment of the present application;

fig. 7 is a top view of a battery heat exchange integrated structure according to an embodiment of the present application;

FIG. 8 isbase:Sub>A cross-sectional view taken at A-A of FIG. 7;

FIG. 9 is an enlarged view taken at A of FIG. 8;

FIG. 10 is an enlarged view at B of FIG. 8;

fig. 11 is an exploded view of a liquid inlet header and a first baffle according to an embodiment of the present disclosure;

fig. 12 is an exploded view of the liquid outlet header and the second barrier plate according to an embodiment provided in the present application.

Reference numerals are as follows: 100. a first heat exchange plate; 110. a first fixing groove; 120. a first heat exchange channel; 130. a flared part; 140. a liquid inlet collecting pipe; 141. a liquid inlet collecting channel; 142. a first barrier plate; 143. a straight-through pipe; 144. a first mounting groove; 145. a first fitting opening; 146. feeding the liquid into a connecting groove; 150. a liquid outlet and collecting pipe; 151. a liquid outlet and collecting channel; 152. a second barrier panel; 153. a second mounting groove; 154. a second assembly port; 155. a liquid outlet connecting groove; 160. a liquid separating pipe; 161. a liquid separation channel; 162. an odd-numbered bit lane; 163. an even-numbered bit lane; 164. a branch channel; 200. a second heat exchange plate; 210. a second fixing groove; 220. a second heat exchange channel; 230. a necking part; 300. an intermediate heat exchange plate; 310. an intermediate heat exchange channel; 320. a first cover plate; 330. a second cover plate; 340. a central main board; 341. a communicating groove; 342. a liquid inlet collecting groove; 343. a liquid outlet collecting groove; 344. a liquid separating tank; 400. a liquid inlet main pipe; 500. a liquid outlet main pipe.

Detailed Description

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

When the electric vehicle runs under different driving conditions, the battery generates a large amount of heat, and the battery life and performance are reduced due to overhigh temperature of the battery, so that the battery needs to be cooled. At present, the battery is cooled by a cooling plate, in order to ensure the cooling effect, the bottom and the side of each battery core need to be provided with an independent cooling plate, and the cooling plate needs to be installed and fixed by a special fixing support. So, the quantity of the cooling plate that each electricity core corresponds and the quantity of fixed bolster are too much, lead to the holistic weight of battery package and volume all to increase by a wide margin to reduce the energy density of battery package and increased the installation space of battery package.

Referring to fig. 1 to 12, in order to solve the problem that the weight and the volume of the entire battery pack are both greatly increased due to the excessive number of cooling plates and fixing brackets corresponding to each battery cell, so that the energy density of the battery pack is reduced and the installation space of the battery pack is increased. The application provides a battery heat exchange integrated structure, which comprises an intermediate heat exchange plate 300, a first heat exchange plate 100 and a second heat exchange plate 200. Heat transfer board 300 in the middle of first heat transfer board 100 one end is connected, and the other end orientation is kept away from the direction extension of middle heat transfer board 300, and a plurality of first heat transfer board 100 intervals set up in one side of middle heat transfer board 300, and adjacent first heat transfer board 100 encloses with middle heat transfer board 300 and establishes and form first fixed slot 110, and first fixed slot 110 is used for fixed one or more first battery module, and first battery module's bottom subsides locate middle heat transfer board 300, and adjacent first heat transfer board 100 is located in the subsides of the both sides that first battery module is relative respectively. Heat exchange plate 300 in the middle of second heat exchange plate 200 one end is connected, the other end extends towards the direction of keeping away from middle heat exchange plate 300, a plurality of second heat exchange plate 200 intervals set up in the one side that middle heat exchange plate 300 deviates from first heat exchange plate 100, and adjacent second heat exchange plate 200 and middle heat exchange plate 300 enclose to establish and form second fixed slot 210, second fixed slot 210 is used for fixed one or more second battery module, and the bottom subsides of second battery module locate middle heat exchange plate 300, the adjacent second heat exchange plate 200 is located in the subsides respectively to the both sides that the second battery module is relative.

It should be noted that the first battery module or the second battery module includes, but is not limited to, a battery module and a battery cell. Also, the manner in which the first battery module is fixed to the first fixing groove 110 includes, but is not limited to, the clamping of the first battery module by the clamping action of the adjacent first heat exchange plate 100, and likewise, the manner in which the second battery module is fixed to the second fixing groove 210 includes, but is not limited to, the clamping of the second battery module by the clamping action of the adjacent second heat exchange plate 200.

Further, it should be noted that the intermediate heat exchange plate 300, the first heat exchange plate 100 and the second heat exchange plate 200 are made of a material with high thermal conductivity, such as an aluminum alloy, an iron alloy or a copper alloy.

Since the adjacent first battery modules share one first heat exchange plate 100 and the adjacent second battery modules share one second heat exchange plate 200, further, the first battery modules and the second battery modules share one intermediate heat exchange plate 300. Therefore, by the arrangement, the number of total heat exchange plates (including the heat exchange plates arranged on the side edges and the heat exchange plates arranged on the bottom) required by the first battery module and the second battery module is greatly reduced, so that the weight and the volume of the whole battery pack are reduced on the basis of ensuring the heat exchange efficiency of the battery modules (including the first battery module and the second battery module), the energy density of the battery pack is improved, and the installation space of the battery pack is reduced.

Further, since the first fixing groove 110 can fix one or more first battery modules, and the second fixing groove 210 can fix one or more second battery modules. Therefore, the first heat exchange plate 100, the second heat exchange plate 200 and the middle heat exchange plate 300 can also be used for installing and fixing the first battery module and the second battery module, that is, the battery heat exchange integrated structure provided by the application does not need to additionally arrange a mounting bracket for installing the first battery module and the second battery module.

To sum up, the battery heat exchange integrated structure that this application provided has effectively solved the quantity of the cooling plate that each electric core corresponds and the quantity of fixed bolster too much, leads to holistic weight of battery package and volume to all increase by a wide margin to the energy density of battery package has been reduced and the problem of the installation space of battery package has been increased.

In an embodiment, as shown in fig. 1 and 2, the first heat exchange plate 100 and the second heat exchange plate 200 are both arranged in a wave-shaped curve.

Thus, the first heat exchange plate 100 and the second heat exchange plate 200 are beneficial to clamping the cylindrical battery core.

But not limited thereto, in other embodiments, the first heat exchange plate 100 and the second heat exchange plate 200 may also be both arranged in a step-like bending manner.

In this way, the first heat exchange plate 100 and the second heat exchange plate 200 are facilitated to clamp the square battery core.

In other embodiments, as shown in fig. 5, the first heat exchange plate 100 and the second heat exchange plate 200 may be both arranged in a plane.

In an embodiment, the first and second heat exchanger plates 100 and 200 are welded to both sides of the middle heat exchanger plate 300, respectively.

Therefore, the battery heat exchange integrated structure is effectively improved, and the assembly difficulty of the battery heat exchange integrated structure is reduced.

But not limited thereto, in other embodiments, the first and second heat exchanger plates 100, 200 may also be snapped with the intermediate heat exchanger plate 300. Alternatively, the first heat exchange plate 100 and the second heat exchange plate 200 may be detachably connected to the intermediate heat exchange plate 300 by fasteners, which are not listed here.

In an embodiment, as shown in fig. 4, the first heat exchange plate 100 is provided with a first heat exchange channel 120, the second heat exchange plate 200 is provided with a second heat exchange channel 220, the intermediate heat exchange plate 300 is provided with an intermediate heat exchange channel 310, a liquid inlet end of the first heat exchange channel 120 and a liquid inlet end of the second heat exchange channel 220 are respectively communicated with a liquid inlet end of the intermediate heat exchange channel 310, and a liquid outlet end of the first heat exchange channel 120 and a liquid outlet end of the second heat exchange channel 220 are respectively communicated with a liquid outlet end of the intermediate heat exchange channel 310.

In this manner, heat exchange medium (including but not limited to coolant) can enter intermediate heat exchange channels 310 from the inlet ends of intermediate heat exchange channels 310 and exit intermediate heat exchange channels 310 from the outlet ends of intermediate heat exchange channels 310. And, the heat exchange medium can also enter the first heat exchange channel 120 and the second heat exchange channel 220 from the liquid inlet end of the intermediate heat exchange channel 310. That is, through the arrangement, the mutual communication among the first heat exchange channel 120, the second heat exchange channel 220 and the intermediate heat exchange channel 310 is realized, and the difficulty in circulating the heat exchange medium in the battery heat exchange integrated structure is greatly reduced.

Further, in an embodiment, as shown in fig. 4, the first heat exchange plate 100 is disposed above the intermediate heat exchange plate 300, and the second heat exchange plate 200 is disposed below the intermediate heat exchange plate 300. The first heat exchange plate 100 is provided with a flared part 130, the middle heat exchange channel 310 is communicated with the first heat exchange channel 120 through the flared part 130, the cross-sectional area of the flared part 130 is expanded from one end communicated with the first heat exchange channel 120 to one end communicated with the middle heat exchange channel 310, the second heat exchange plate 200 is provided with a necked part 230, the middle heat exchange channel 310 is communicated with the second heat exchange channel 220 through the necked part 230, the cross-sectional area of the necked part 230 is contracted from one end communicated with the second heat exchange channel 220 to one end communicated with the middle heat exchange channel 310, and the maximum cross-sectional area of the flared part 130 is larger than the minimum cross-sectional area of the necked part 230.

Since the cross-sectional area of the flared portion 130 is expanded from the end communicating with the first heat exchange channel 120 to the end communicating with the intermediate heat exchange channel 310, the cross-sectional area of the flared portion 130 near the intermediate heat exchange channel 310 is maximized. Similarly, since the cross-sectional area of the choke portion 230 is constricted from the end communicating with the second heat exchange channel 220 to the end communicating with the intermediate heat exchange channel 310, the cross-sectional area of the choke portion 230 near the intermediate heat exchange channel 310 is minimized. By providing the maximum cross-sectional area of the flared portion 130 to be larger than the minimum cross-sectional area of the constricted portion 230, it is advantageous to increase the flow rate of the heat exchange medium entering the first heat exchange channel 120 through the flared portion 130, and also to reduce the flow rate of the heat exchange medium entering the second heat exchange channel 220 through the constricted portion 230. And because the first heat exchange plate 100 is disposed above the intermediate heat exchange plate 300, the second heat exchange plate 200 is disposed below the intermediate heat exchange plate 300. Therefore, by providing the choke portion 230 and the flared portion 130, it is possible to effectively balance the problem that the amount of the heat exchange medium entering the first heat exchange channel 120 is significantly less than the amount of the heat exchange medium entering the second heat exchange channel 220 due to gravity.

Further, since the cross-sectional area of the flared portion 130 is expanded from the end communicating with the first heat exchange channel 120 to the end communicating with the middle heat exchange channel 310, when the heat exchange medium in the middle channel enters the first heat exchange channel 120 from the flared portion 130, the flow velocity of the heat exchange medium is significantly increased due to the reduction of the flow area, and thus, the heat exchange medium is facilitated to rise to a higher position in the first heat exchange channel 120 by overcoming the action of gravity.

Further, in an embodiment, as shown in fig. 4, the maximum inner diameter a of the flared portion 130, the minimum inner diameter b of the flared portion 130, the maximum inner diameter c of the constricted portion 230, and the minimum inner diameter d of the constricted portion 230 are satisfied, d < b < c < a.

So set up, can further effectively balance the circulation of heat transfer medium in first heat exchange passageway 120 and the different height department in second heat exchange passageway 220.

In an embodiment, as shown in fig. 2 and 3, the intermediate heat exchange plate 300 includes a first cover plate 320, a second cover plate 330 and a central main plate 340, the central main plate 340 is provided with a communicating groove 341 penetrating through the central main plate 340 along the thickness direction, and the first cover plate 320 and the second cover plate 330 are respectively covered on two sides of the central main plate 340 along the thickness direction of the central main plate 340 and surround the communicating groove 341 to form the intermediate heat exchange channel 310.

So set up, be favorable to heat exchange medium to first heat exchange channel 120, second heat exchange channel 220 and middle heat exchange channel 310 through the liquid inlet end quick distribution of middle heat exchange channel 310. Moreover, since the communicating groove 341 penetrates through the central main plate 340 along the thickness direction, the difficulty of processing the communicating groove 341 on the central main plate 340 is greatly reduced, that is, the processing difficulty of the battery heat exchange integrated structure is reduced.

Specifically, the first cover plate 320 and the second cover plate 330 are respectively provided with a plurality of communication holes, and the first heat exchange channel 120 and the second heat exchange channel 220 are respectively communicated with the intermediate heat exchange channel 310 through different communication holes.

But not limited thereto, in other embodiments, the intermediate heat exchange plate 300 may also be a double-layer plate structure, that is, the intermediate heat exchange channel 310 may be directly surrounded by two layers of cover plates.

Further, in an embodiment, the communication groove 341 is formed by the center main plate 340 by press working, or the communication groove 341 is formed by the center main plate 340 by cast molding.

Further, in an embodiment, the first cover plate 320, the second cover plate 330 and the central main plate 340 are detachably connected by a fastener, or the first cover plate 320 and the second cover plate 330 are respectively welded to two sides of the central main plate 340.

In an embodiment, as shown in fig. 3, the communication groove 341 includes an inlet collecting groove 342 and an outlet collecting groove 343, and the communication groove 341 further includes a plurality of liquid dividing grooves 344 arranged in parallel, and the liquid dividing grooves 344 are respectively communicated with the inlet collecting groove 342 and the outlet collecting groove 343.

So set up, be favorable to the heat transfer homogeneity of the different positions of increase middle heat transfer passageway 310.

Further, in one embodiment, the separating groove 344 is S-shaped.

So set up, be favorable to increasing the total path length of intercommunication groove 341, promptly, be favorable to increasing the length of heat transfer medium circulation route in middle heat transfer passageway 310, and then improve the heat transfer homogeneity of battery heat transfer integrated configuration.

But not limited thereto, the separating groove 344 may also have a straight shape or a serpentine shape with more times than the S-shaped bending.

In an embodiment, as shown in fig. 1 and fig. 2, the battery heat exchange integrated structure further includes a liquid inlet header pipe 400 and a liquid outlet header pipe 500, the liquid inlet header pipe 400 is connected to the liquid inlet end of the intermediate heat exchange plate 300, and the liquid outlet header pipe 500 is connected to the liquid outlet end of the intermediate heat exchange plate 300.

Therefore, the dispersion and the concentration of the heat exchange medium in the battery heat exchange integrated structure are facilitated.

Specifically, the inlet header pipe 400 and the outlet header pipe 500 are connected to both ends of the first cover plate 320, respectively.

Generally, the first battery module and the second battery module are both vertically disposed, and thus, the first heat exchange plate 100 disposed at the side of the first battery module corresponds to the vertical disposition of the first battery module, and the second heat exchange plate 200 disposed at the side of the second battery module corresponds to the vertical disposition of the second battery module.

However, the vertical arrangement of the first heat exchange plate 100 and the second heat exchange plate 200 may result in uneven distribution of the heat exchange medium in the first heat exchange plate 100 and the second heat exchange plate 200, that is, the heat exchange medium in the first heat exchange plate 100 and the second heat exchange plate 200 is easily distributed at the lower ends of the first heat exchange plate 100 and the second heat exchange plate 200 in a concentrated manner under the action of gravity, so that the uniform distribution of the heat exchange medium in the first heat exchange plate 100 and the second heat exchange plate 200 in the vertical direction is not facilitated.

Referring to fig. 6 to 12, in order to solve the problem that the heat exchange media in the first heat exchange plate 100 and the second heat exchange plate 200 cannot be uniformly distributed in the vertical direction in the prior art. In an embodiment, the first heat exchange plate 100 is provided with a liquid inlet collecting channel 141, a liquid outlet collecting channel 151 and a liquid separating channel 161, the liquid inlet collecting channel 141 and the liquid outlet collecting channel 151 are both vertically arranged, a plurality of liquid separating channels 161 are distributed in parallel along the vertical direction, and the liquid separating channels 161 are respectively communicated with the liquid inlet collecting channel 141 and the liquid outlet collecting channel 151. The liquid separating channels 161 are sequentially divided into odd-numbered channels 162 and even-numbered channels 163 from top to bottom, a plurality of first blocking plates 142 are arranged in the liquid inlet collecting channel 141, and the first blocking plates 142 are all arranged between the upper odd-numbered channels 162 and the lower even-numbered channels 163, so that the upper odd-numbered channels 162 and the lower even-numbered channels 163 are not communicated in the liquid inlet collecting channel 141. A plurality of second blocking plates 152 are arranged in the liquid outlet collecting channel 151, and the second blocking plates 152 are all arranged between the even-numbered channels 163 at the upper part and the odd-numbered channels 162 at the lower part, so that the even-numbered channels 163 at the upper part and the odd-numbered channels 162 at the lower part are not communicated in the liquid outlet collecting channel 151. The second heat exchange plate 200 and the first heat exchange plate 100 are arranged in a mirror symmetry manner in the vertical direction.

It should be noted that the odd-numbered channels 162 refer to the liquid-separating channels 161 in odd-numbered order such as 1, 3, 5 and 7 from the top, and the even-numbered channels 163 refer to the liquid-separating channels 161 in even-numbered order such as 2, 4, 6 and 8 from the top.

The upper odd-numbered channel 162 and the lower even-numbered channel 163 are not communicated in the liquid inlet collecting channel 141, and the upper even-numbered channel 163 and the lower odd-numbered channel 162 are not communicated in the liquid outlet collecting channel 151. Therefore, it can be seen that the heat exchange medium can form a serpentine circuitous channel in the first heat exchange plate 100, and the more times the heat exchange medium circuitous in the liquid distribution channels 161, the finer the liquid distribution channels 161 are divided, and the more uniform the distribution of the heat exchange medium in the first heat exchange plate 100. Therefore, by such an arrangement, the heat exchange medium can be prevented from being completely concentrated at the bottom of the first heat exchange plate 100, and the distribution uniformity of the heat exchange medium in the first heat exchange plate 100 along the vertical direction is greatly improved.

Further, it should be noted that, in terms of the "second heat exchange plate 200 and the first heat exchange plate 100 are arranged in mirror symmetry in the vertical direction", the arrangement is unrelated to the distribution of the first heat exchange plate 100 and the second heat exchange plate 200 on the horizontal plane, that is, the first heat exchange plate 100 and the second heat exchange plate 200 may be distributed in a staggered manner, may also be distributed in a parallel manner, and may also be distributed in a crossed manner on the horizontal plane.

Because the second heat exchange plate 200 and the first heat exchange plate 100 are arranged in a mirror symmetry manner in the vertical direction, the heat exchange medium also flows in a serpentine and circuitous manner in the second heat exchange plate 200, and the distribution uniformity of the heat exchange medium in the second heat exchange plate 200 is also increased. Moreover, the second heat exchange plate 200 and the first heat exchange plate 100 are arranged in a mirror symmetry manner in the vertical direction, so that the second heat exchange plate 200 and the first heat exchange plate 100 can share one liquid inlet and one liquid outlet, and the structural complexity of the battery heat exchange integrated structure is greatly reduced.

But not limited thereto, the second heat exchange plate 200 and the first heat exchange plate 100 may be arranged in a repeated arrangement in the vertical direction.

In one embodiment, as shown in FIG. 6, the number of odd bit lanes 162 is greater than the number of even bit lanes 163.

In this way, the heat exchange medium in the first heat exchange plate 100 can finally flow out of the liquid outlet collecting channel 151.

Further, in an embodiment, as shown in fig. 6-10, the bottom end of the inlet collecting channel 141 is isolated from the intermediate channel plate, and a straight pipe 143 is disposed in the inlet collecting channel 141, one end of the straight pipe 143 is connected to the intermediate heat exchange plate 300, and the other end of the straight pipe 143 passes through the plurality of first isolation plates 142 in sequence and extends to the uppermost end of the inlet collecting channel 141, so that the intermediate channel plate can be directly connected to the uppermost separating channel 161 through the straight pipe 143.

In this way, the heat exchange medium in the intermediate channel plate can directly enter the uppermost liquid separation channel 161, and the heat exchange medium can flow from the uppermost liquid separation channel 161 to the lowermost liquid separation channel 161 in a circuitous manner.

But not limited thereto, in other embodiments, the liquid collecting channel 141 may be further divided into a first channel (not shown) and a second channel (not shown) which are vertically arranged in parallel, the first channel directly connects the intermediate heat exchange plate 300 and the uppermost end of the liquid collecting channel 141, and the first blocking plate 142 is arranged in the second channel.

Further, in an embodiment, the inner diameter of the through pipe 143 is gradually decreased from a direction close to the intermediate passage plate to a direction away from the intermediate passage plate.

So set up, be favorable to improving through the velocity of flow of heat transfer medium in the pipe 143, and then be favorable to heat transfer medium to get into in the minute liquid passageway 161 of top.

In an embodiment, as shown in fig. 8 to fig. 10, the liquid dividing channel 161 includes a plurality of branch channels 164 distributed in parallel along the vertical direction, and the plurality of branch channels 164 respectively communicate with the liquid inlet collecting channel 141 and the liquid outlet collecting channel 151.

In this way, each liquid distribution channel 161 is partitioned again in the vertical direction, so that the distribution uniformity of the heat exchange medium in the vertical direction of each liquid distribution channel 161 is improved, that is, the distribution uniformity of the heat exchange medium in the whole first heat exchange plate 100 is further improved.

In an embodiment, as shown in fig. 6 to fig. 10, the first heat exchange plate 100 includes a liquid inlet collecting pipe 140, a liquid outlet collecting pipe 150, and a liquid separating pipe 160, the liquid inlet collecting pipe 140 is provided with a liquid inlet collecting passage 141, the liquid outlet collecting pipe 150 is provided with a liquid outlet collecting passage 151, and the liquid separating pipe 160 is provided with a liquid separating passage 161.

In this way, the difficulty of assembling the first heat exchange plate 100 is reduced.

Further, in an embodiment, as shown in fig. 11, a plurality of first installation grooves 144 are formed in a side portion of the liquid inlet collecting pipe 140, the first installation grooves 144 penetrate through a side wall of the liquid inlet collecting pipe 140 along a sectional direction of the liquid inlet collecting pipe 140 and form a first installation hole 145, and the first blocking plate 142 is installed in the first installation grooves 144 through the first installation hole 145.

Thus, the difficulty of installing the first blocking plate 142 is greatly reduced.

Similarly, in an embodiment, as shown in fig. 12, a plurality of second mounting grooves 153 are formed in a side portion of the liquid outlet manifold 150, the second mounting grooves 153 penetrate through a side wall of the liquid outlet manifold 150 along a cross-sectional direction of the liquid outlet manifold 150 and form a second mounting hole 154, and the second blocking plate 152 is mounted to the second mounting grooves 153 through the second mounting hole 154.

In this manner, the difficulty of installing the second barrier plate 152 is greatly reduced.

Further, in an embodiment, as shown in fig. 11, the liquid inlet collecting pipe 140 is provided with a liquid inlet connecting groove 146 extending along the vertical direction, and the plurality of liquid separating channels 161 are respectively communicated with the liquid inlet collecting channel 141 through the liquid inlet connecting groove 146.

Similarly, in an embodiment, as shown in fig. 12, the liquid outlet header 150 is provided with a liquid outlet connecting groove 155 extending along the vertical direction, and the plurality of liquid distribution channels 161 are respectively communicated with the liquid outlet collecting channel 151 through the liquid outlet connecting groove 155.

The application further provides a thermal management system, which comprises the battery heat exchange integrated structure in any one of the above embodiments.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. A battery heat exchange integrated structure is characterized by comprising an intermediate heat exchange plate (300), a first heat exchange plate (100) and a second heat exchange plate (200); one end of each first heat exchange plate (100) is connected with the corresponding intermediate heat exchange plate (300), the other end of each first heat exchange plate extends towards the direction far away from the corresponding intermediate heat exchange plate (300), a plurality of first heat exchange plates (100) are arranged on one side of the corresponding intermediate heat exchange plate (300) at intervals, a first fixing groove (110) is formed by enclosing the adjacent first heat exchange plates (100) and the corresponding intermediate heat exchange plates (300), the first fixing groove (110) is used for fixing one or more first battery modules, the bottoms of the first battery modules are attached to the corresponding intermediate heat exchange plates (300), and two opposite sides of each first battery module are respectively attached to the adjacent first heat exchange plates (100); second heat transfer board (200) one end is connected middle heat transfer board (300), and the other end orientation is kept away from the direction of middle heat transfer board (300) extends, and is a plurality of second heat transfer board (200) interval set up in middle heat transfer board (300) deviates from one side of first heat transfer board (100), and adjacent second heat transfer board (200) with middle heat transfer board (300) enclose to establish and form second fixed slot (210), second fixed slot (210) are used for fixed one or more second battery module, and the bottom subsides of second battery module are located middle heat transfer board (300), the both sides that second battery module is relative are subsided respectively and are located adjacently second heat transfer board (200).

2. The battery heat exchange integrated structure according to claim 1, wherein the first heat exchange plate (100) is provided with a first heat exchange channel (120), the second heat exchange plate (200) is provided with a second heat exchange channel (220), the intermediate heat exchange plate (300) is provided with an intermediate heat exchange channel (310), a liquid inlet end of the first heat exchange channel (120) and a liquid inlet end of the second heat exchange channel (220) are respectively communicated with a liquid inlet end of the intermediate heat exchange channel (310), and a liquid outlet end of the first heat exchange channel (120) and a liquid outlet end of the second heat exchange channel (220) are respectively communicated with a liquid outlet end of the intermediate heat exchange channel (310).

3. The battery heat exchange integrated structure according to claim 2, wherein the first heat exchange plate (100) is disposed above the intermediate heat exchange plate (300), and the second heat exchange plate (200) is disposed below the intermediate heat exchange plate (300); the first heat exchange plate (100) is provided with a flared part (130), the middle heat exchange channel (310) is communicated with the first heat exchange channel (120) through the flared part (130), the cross section area of the flared part (130) is expanded from one end communicated with the first heat exchange channel (120) to one end communicated with the middle heat exchange channel (310), the second heat exchange plate (200) is provided with a necked part (230), the middle heat exchange channel (310) is communicated with the second heat exchange channel (220) through the necked part (230), the cross section area of the necked part (230) is contracted from one end communicated with the second heat exchange channel (220) to one end communicated with the middle heat exchange channel (310), and the maximum cross section area of the flared part (130) is larger than the minimum cross section area of the necked part (230).

4. The battery heat exchange integrated structure according to claim 3, wherein the maximum inner diameter a of the flared portion (130), the minimum inner diameter b of the flared portion (130), the maximum inner diameter c of the constricted portion (230) and the minimum inner diameter d of the constricted portion (230) satisfy d < b < c < a.

5. The battery heat exchange integrated structure according to claim 2, wherein the intermediate heat exchange plate (300) comprises a first cover plate (320), a second cover plate (330) and a central main plate (340), the central main plate (340) is provided with a communication groove (341) penetrating through the central main plate (340) along the thickness direction, and the first cover plate (320) and the second cover plate (330) are respectively arranged on two sides of the central main plate (340) along the thickness direction of the central main plate (340) and are enclosed with the communication groove (341) to form the intermediate heat exchange channel (310).

6. The integrated structure for battery heat exchange according to claim 5, wherein the communication groove (341) comprises an inlet liquid collecting groove (342) and an outlet liquid collecting groove (343), and the communication groove (341) further comprises a plurality of liquid dividing grooves (344) arranged in parallel, and the plurality of liquid dividing grooves (344) are respectively communicated with the inlet liquid collecting groove (342) and the outlet liquid collecting groove (343).

7. The battery heat exchange integrated structure according to claim 1, further comprising a liquid inlet header pipe (400) and a liquid outlet header pipe (500), wherein the liquid inlet header pipe (400) is communicated with the liquid inlet end of the intermediate heat exchange plate (300), and the liquid outlet header pipe (500) is communicated with the liquid outlet end of the intermediate heat exchange plate (300).

8. The battery heat exchange integrated structure according to claim 1, wherein the first heat exchange plate (100) and the second heat exchange plate (200) are both arranged in a wave-shaped bending manner;

or, first heat transfer board (100) with second heat transfer board (200) all are the notch cuttype and buckle the setting.

9. The battery heat exchange integrated structure according to claim 1, characterized in that said first heat exchange plate (100) and said second heat exchange plate (200) are welded to both sides of said intermediate heat exchange plate (300), respectively;

or the first heat exchange plate (100) and the second heat exchange plate (200) are clamped with the intermediate heat exchange plate (300);

or, the first heat exchanger plate (100) and the second heat exchanger plate (200) are detachably connected with the intermediate heat exchanger plate (300) by fasteners.

10. A thermal management system comprising the battery heat exchange integrated structure of any one of claims 1-9.

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