Heat exchange assembly, battery and electric device

Abstract

The invention discloses a heat exchange assembly, a battery and an electric device, and belongs to the technical field of batteries. The heat exchange assembly comprises a heat exchange plate, the heat exchange plate is provided with a main inlet, a main outlet and a plurality of branch flow channels connected between the main inlet and the main outlet, the inlet ends of the branch flow channels are connected with the main inlet through inlet flow guide sections, and the circulation sectional area of the inlet flow guide sections is firstly decreased and then increased in the medium flow direction. According to the technical scheme, by accurately controlling the sizes and the shapes of the branch flow channels and the inlet flow guide section, generation of vortexes can be reduced, the balance of the heat dissipation performance and fluid resistance is further achieved, and the flow uniformity of the flow channels in different areas and the heat exchange efficiency of the heat exchange assembly are improved.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and in particular relates to a heat exchange component, a battery and an electrical device. Background Art

[0002] The heat density generated by the battery pack during operation is relatively high, and a heat exchange plate is usually placed between two layers of batteries for heat exchange. In related technologies, since the flow channels of the heat exchange plates are mostly designed to be curved, local eddies are easily formed at the bends of the flow channels, resulting in uneven fluid flow rates, which in turn causes thermal stress concentration and affects heat exchange efficiency, leaving room for improvement. Summary of the invention

[0003] The present application aims to at least solve the technical problem of poor temperature uniformity of battery cores in the related art. To this end, the present application proposes a heat exchange component, a battery and an electrical device, which can improve the heat exchange efficiency of the heat exchange component.

[0004] In a first aspect, the present application provides a heat exchange component, comprising a heat exchange plate, wherein the heat exchange plate is provided with: a main inlet, a main outlet, and a plurality of branch channels connected between the main inlet and the main outlet, wherein the inlet end of the branch channel is connected to the main inlet through the inlet guide section, and the flow cross-sectional area of ​​the inlet guide section first decreases and then expands along the flow direction of the medium.

[0005] By precisely controlling the size and shape of the branch flow channel and the inlet guide section, the generation of eddy currents can be reduced, the balance between heat dissipation performance and fluid resistance can be further achieved, and the flow uniformity of flow channels in different regions and the heat exchange efficiency of the heat exchange component can be improved.

[0006] According to an embodiment of the present application, the angle between each branch flow channel and the corresponding inlet guide section is negatively correlated with the flow channel distance from the branch flow channel to the main inlet.

[0007] By adjusting the angle between the branch channel and the corresponding inlet guide section, the branch channels in different areas can obtain appropriate flow rates and flow velocities, thereby improving the heat dissipation uniformity of the entire heat dissipation surface and reducing the risk of system failure caused by local overheating or insufficient flow.

[0008] According to an embodiment of the present application, the outlet end of the branch flow channel is connected to the main outlet through the outlet guide section, and the flow cross-sectional area of ​​the outlet guide section first decreases and then expands along the flow direction of the medium.

[0009] The design of the inlet guide section and the outlet guide section are combined to form an efficient fluid flow channel. The inlet guide section improves heat exchange efficiency by accelerating the fluid and reducing eddy currents, while the outlet guide section helps the fluid to smoothly leave the branch channel by optimizing the flow velocity and pressure distribution.

[0010] According to an embodiment of the present application, the angle between each branch flow channel and the corresponding outlet guide section is negatively correlated with the flow channel distance from the branch flow channel to the main outlet.

[0011] By adjusting the angle between the branch channel and the corresponding outlet guide section, the fluid in the flow channel from the branch channel to the main outlet can obtain appropriate flow rate and flow velocity, thereby improving the heat dissipation uniformity of the entire heat dissipation surface and reducing the risk of system failure caused by local overheating or insufficient flow.

[0012] According to one embodiment of the present application, the heat exchange plate is provided with: an inlet manifold, an outlet manifold and a plurality of partitioned flow channels, each of the partitioned flow channels includes a plurality of branch flow channels, each of the partitioned flow channels is connected between the total inlet and the total outlet, the inlet manifold is connected between the total inlet and each of the partitioned flow channels, and the outlet manifold is connected between the total outlet and each of the partitioned flow channels.

[0013] The heat exchange plate is provided with a plurality of the partition flow channels and a plurality of the branch flow channels therein, so that uniform distribution of heat, precise control of flow rate and maximization of heat exchange efficiency can be achieved.

[0014] According to one embodiment of the present application, the multiple partitioned flow channels are arranged in sequence.

[0015] The plurality of partitioned flow channels are sequentially arranged around each other, so as to achieve uniform distribution of heat and stability of fluid flow.

[0016] According to one embodiment of the present application, the branch channel includes an inlet branch channel and a return branch channel; the partitioned channel includes an inlet main branch, a plurality of the inlet branch channels, a confluence branch, a plurality of the return branch channels and an outlet main branch connected in sequence, the inlet end of the inlet main branch is connected to the main inlet through the inlet confluence pipe, and the outlet end of the outlet main branch is connected to the main outlet through the outlet confluence pipe.

[0017] By subdividing the branch flow channels and constructing the partitioned flow channel system, precise control and efficient use of the cooling medium can be achieved, and the heat dissipation efficiency and uniformity of the fluid flow can be improved.

[0018] According to one embodiment of the present application, the inlet main branches of the multiple partitioned flow channels are arranged adjacent to each other, the inlet branch channels of the multiple partitioned flow channels are arranged adjacent to each other, the confluence branches of the multiple partitioned flow channels are arranged adjacent to each other, the return branch channels of the multiple partitioned flow channels are arranged adjacent to each other, and the outlet main branches of the multiple partitioned flow channels are arranged adjacent to each other.

[0019] The manner in which the components of the plurality of partitioned flow channels are arranged adjacent to each other can optimize the fluid flow path and help improve space utilization and thermal management efficiency.

[0020] According to an embodiment of the present application, at least part of the partitioned flow channels are provided with a plurality of the confluence branches, and adjacent confluence branches in two adjacent partitioned flow channels are connected.

[0021] At least part of the partitioned flow channels are provided with a plurality of the confluence branches, and adjacent confluence branches are connected in adjacent partitioned flow channels, which helps to optimize the flow path of the cooling medium, reduce thermal resistance and temperature difference, and thus improve heat dissipation efficiency.

[0022] In a second aspect, the present application provides a battery, characterized in that it includes:

[0023] Battery pack;

[0024] As described in any one of the above-mentioned heat exchange components, the heat exchange component is used to exchange heat for the battery pack.

[0025] The heat exchange component can quickly take away the heat generated by the battery pack. By controlling the temperature of the battery pack, problems such as battery aging and capacity decay caused by high temperature can be reduced, thereby extending the service life of the battery.

[0026] According to one embodiment of the present application, the battery includes:

[0027] A box body, forming a receiving cavity, wherein the battery pack and the heat exchange assembly are installed in the receiving cavity;

[0028] The pipe joint is connected to the total inlet and the total outlet of the heat exchange component and is a metal pipe. The pipe joint passes through the front beam of the box body.

[0029] By integrating the box, the battery pack, the heat exchange assembly, the pipe joint and other components, a highly efficient, reliable and easy-to-maintain battery system can be formed.

[0030] In a third aspect, the present application provides an electrical device, comprising: a battery, wherein the battery is used to provide electrical energy to the electrical device.

[0031] The electrical device integrates the battery as an energy source to drive its internal working mechanism or perform specific functions.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 is a schematic diagram of the structure of a battery provided in an embodiment of the present application;

[0035] Figure 2 It is a schematic diagram of the structure of the heat exchange plate of the heat exchange assembly provided in an embodiment of the present application;

[0036] Figure 3 It is a schematic structural diagram of a first partitioned flow channel of a heat exchange plate of a heat exchange assembly provided in an embodiment of the present application;

[0037] Figure 4 It is a schematic structural diagram of a second partitioned flow channel of a heat exchange plate of a heat exchange assembly provided in an embodiment of the present application;

[0038] Figure 5 It is a schematic structural diagram of the third partition flow channel of the heat exchange plate of the heat exchange assembly provided in an embodiment of the present application;

[0039] Figure 6 is a schematic diagram of the structure of a heat exchange assembly provided in an embodiment of the present application;

[0040] Figure 7 It is a schematic diagram of the structure of the tube joint of the battery provided in the embodiment of the present application.

[0041] Reference numerals:

[0042] Battery 1;

[0043] Heat exchange component 10;

[0044] Heat exchange plate 110, base plate 120;

[0045] Total imports 1111, total exports 1112;

[0046] Branch channel 112, water inlet branch channel 1121, return branch channel 1122;

[0047] Inlet guide section 113, first inlet guide section 113a, second inlet guide section 113b, third inlet guide section 113c;

[0048] An outlet guide section 114, a first outlet guide section 114a, a second outlet guide section 114b, and a third outlet guide section 114c;

[0049] An inlet manifold 1151 and an outlet manifold 1152;

[0050] Partitioned flow channel 116, first partitioned flow channel 116a, second partitioned flow channel 116b, third partitioned flow channel 116c;

[0051] An inlet main branch 117, a first inlet main branch 117a, a second inlet main branch 117b, and a third inlet main branch 117c;

[0052] The bus branch 118, the first bus branch 1181, the second bus branch 1182, the third bus branch 1183;

[0053] An exit main branch 119, a first exit main branch 119a, a second exit main branch 119b, and a third exit main branch 119c;

[0054] Battery pack 20;

[0055] Box body 30, front beam 310;

[0056] Pipe joint 40, brazing column 410, adapter round tube 420, sealing mounting block 430, threaded connector 440, sealing ring 450;

[0057] The first direction is X, and the second direction is Y. DETAILED DESCRIPTION

[0058] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0059] The present application aims to at least solve the technical problem of poor temperature uniformity of battery cores in the related art. To this end, the present application proposes a heat exchange component, a battery and an electrical device, which can improve the heat exchange efficiency of the heat exchange component.

[0060] Reference below Figure 1-Figure 7 A heat exchange assembly 10 according to an embodiment of the present application is described.

[0061] like Figure 1 and Figure 2 As shown, the heat exchange assembly 10 includes a heat exchange plate 110, and the heat exchange plate 110 is provided with: a total inlet 1111, a total outlet 1112 and a plurality of branch channels 112 connected between the total inlet 1111 and the total outlet 1112, wherein the inlet end of the branch channel 112 is connected to the total inlet 1111 through an inlet guide section 113, and the flow cross-sectional area of ​​the inlet guide section 113 first decreases and then expands along the flow direction of the medium.

[0062] The heat exchange plate 110 is the core component of the heat exchange assembly 10. It mainly guides the cooling medium to the surface of the component that needs heat dissipation through its internal fluid channel, and takes away the heat through heat exchange. When the cooling medium is water, ethylene glycol or other coolants, the heat exchange plate 110 can be a liquid cooling plate. The fluid channel inside the heat exchange plate 110 is a plurality of branch channels 112 connected between the main inlet 1111 and the main outlet 1112. The plurality of branch channels 112 can evenly distribute the cooling medium to each area, thereby improving the uniformity of heat dissipation. The shape, number and layout of the branch channels 112 will directly affect the cooling effect.

[0063] The inlet end of the branch channel 112 is connected to the main inlet 1111 through the inlet guide section 113. The cooling medium enters from the main inlet 1111 and then enters the branch channel 112 through the inlet guide section 113. The flow cross-sectional area of ​​the inlet guide section 113 first decreases and then expands along the flow direction of the medium, that is, a Laval structure that first contracts and then expands is formed, which can accelerate the fluid and reduce the generation of vortices.

[0064] At the inlet end of the branch channel 112, the sudden change in the geometry of the channel causes the boundary layer of the fluid to separate. The separated fluid forms vortices in the low-pressure area. These vortices will cause disturbances in the flow direction of the fluid, increase the fluid resistance and energy consumption of the system, and reduce the heat exchange efficiency. At the same time, the vortices formed in the low-pressure area lead to uneven local force on the material, causing local fatigue of the plate and affecting its life.

[0065] Before entering the branch channel 112, the fluid is located in the inlet guide section 113. As the fluid flows, the flow cross-sectional area of ​​the inlet guide section 113 gradually decreases, and the flow velocity of the fluid gradually increases, forming a high-pressure area. This acceleration effect helps to increase the flow velocity of the fluid in the branch channel 112, thereby improving the heat exchange efficiency.

[0066] It can be understood that the gradual reduction and subsequent expansion of the inlet guide section 113 can guide the flow direction of the fluid, effectively reduce the generation of vortices, and enable the fluid to enter the branch channel 112 more smoothly.

[0067] The heat density generated by the battery pack 20 during operation is relatively high, and the heat exchange plate 110 is usually placed between two layers of battery packs 20 for heat exchange. In the related art, the flow channel in the heat exchange plate 110 is complex, especially the flow rate of the busbar 118 is too high, which will make the heat exchange amount at the edge of the heat exchange plate 110 much larger than the heat exchange area of ​​the battery cell, causing local overheating or overcooling of the battery cells at the edge of the battery pack 20, resulting in poor temperature uniformity of the battery cells, affecting the normal operation and service life of the battery cells, and there is room for improvement.

[0068] According to the heat exchange component 10 provided in the embodiment of the present application, by precisely controlling the size and shape of the branch channel 112 and the inlet guide section 113, the generation of eddy currents can be reduced, the balance between heat dissipation performance and fluid resistance can be further achieved, and the flow uniformity of different partitioned channels 116 and the heat exchange efficiency of the heat exchange component 10 can be improved.

[0069] In some embodiments, Figure 3-Figure 5 As shown, the angle between each branch channel 112 and the corresponding inlet guide section 113 is negatively correlated with the flow channel distance from the branch channel 112 to the main inlet 1111, aiming to balance the distribution and flow rate of the fluid in different branch channels 112, thereby improving heat exchange uniformity.

[0070] The greater the flow channel distance from the branch channel 112 to the main inlet 1111, the more flow is distributed to the branch channel 112, the greater the kinetic energy of the fluid is, and it is easier to flow in the original direction. The angle between the branch channel 112 and the corresponding inlet guide section 113 is set to an acute angle, which can adjust the fluid flow direction to achieve uniform flow distribution in different branch channels 112.

[0071] When the flow channel distance from the branch channel 112 to the main inlet 1111 is far, the fluid loss in the flow channel is large, the flow velocity and pressure of the fluid will gradually decrease, and more flow needs to be allocated to increase the kinetic energy of the fluid. Setting the angle between the branch channel 112 and the corresponding inlet guide section 113 to an acute angle can guide the flow direction of the fluid, effectively reduce the generation of vortices, and allow the fluid to enter the branch channel 112 more smoothly.

[0072] Correspondingly, when the flow channel distance from the branch channel 112 to the main inlet 1111 is relatively close, the fluid loss in the flow channel is small, its flow velocity and pressure are relatively high, and the distributed flow rate is less. Setting the angle between the branch channel 112 and the corresponding inlet guide section 113 to a right angle can reduce the impact on the fluid, thereby facilitating the flow velocity of the fluid when entering the branch channel 112 to be consistent with that of other branch channels 112.

[0073] It can be understood that by adjusting the angle between the branch channel 112 and the corresponding inlet guide section 113, the branch channels 112 in different areas can obtain appropriate flow rates and flow velocities, thereby improving the heat dissipation uniformity of the entire heat dissipation surface and reducing the risk of system failure caused by local overheating or insufficient flow.

[0074] In some embodiments, Figure 3-Figure 5 As shown, the outlet end of the branch channel 112 is connected to the main outlet 1112 through the outlet guide section 114, and the flow cross-sectional area of ​​the outlet guide section 114 first decreases and then expands along the flow direction of the medium.

[0075] The outlet end of the branch channel 112 is connected to the main outlet 1112 through the outlet guide section 114. The flow cross-sectional area of ​​the outlet guide section 114 first decreases and then expands along the flow direction of the medium, similar to the inlet guide section 113, forming a Laval structure that first contracts and then expands, which can accelerate the fluid and reduce the generation of vortices.

[0076] At the outlet end of the branch channel 112, the sudden change in the geometry of the flow channel causes the boundary layer of the fluid to separate. The separated fluid forms vortices in the low-pressure area. These vortices will cause disturbances in the flow direction of the fluid, increase the fluid resistance and energy consumption of the system, and reduce the heat exchange efficiency. At the same time, the vortices formed in the low-pressure area lead to uneven local force on the material, causing local fatigue of the plate and affecting its life.

[0077] At the beginning of the outlet guide section 114, the reduction in the flow cross-sectional area will increase the fluid flow rate. This acceleration effect helps to remove the heat in the fluid more quickly and reduce stagnation and accumulation at the outlet. Subsequently, the expansion of the flow cross-sectional area will gradually reduce the fluid flow rate. This expansion effect helps the fluid leave the branch channel 112 more smoothly and reduce turbulence and eddies caused by sudden changes.

[0078] The gradual reduction and subsequent expansion of the outlet guide section 114 can guide the flow direction of the fluid, effectively reduce the generation of vortices, and make the fluid flow out of the branch channel 112 more smoothly. In actual working process, the flow direction of the fluid is mainly guided by a longer guide line.

[0079] By adjusting the shape and size of the outlet guide section 114, the flow rate and pressure distribution of the fluid at the outlet end of the branch channel 112 can be further controlled, helping the fluid to continue to flow at a higher speed after leaving the branch channel 112, thereby improving the heat dissipation efficiency.

[0080] It can be understood that the design of the inlet guide section 113 and the outlet guide section 114 are combined to form an efficient fluid flow channel. The inlet guide section 113 improves the heat exchange efficiency by accelerating the fluid and reducing eddy currents, while the outlet guide section 114 helps the fluid to smoothly leave the branch channel 112 by optimizing the flow velocity and pressure distribution.

[0081] In some embodiments, Figure 3-Figure 5 As shown, the included angle between each branch flow channel 112 and the corresponding outlet guide section 114 is negatively correlated with the flow channel distance from the branch flow channel 112 to the main outlet 1112 .

[0082] When the flow channel distance from the branch channel 112 to the main outlet 1112 is relatively far, the angle between the branch channel 112 and the corresponding outlet guide section 114 is set to an acute angle, which can guide the flow direction of the fluid and effectively reduce the generation of vortices, so that the fluid can flow out of the branch channel 112 more smoothly. Correspondingly, when the flow channel distance from the branch channel 112 to the main outlet 1112 is relatively close, the angle between the branch channel 112 and the corresponding outlet guide section 114 is set to a right angle, which can reduce the impact on the fluid, so that the flow velocity of the fluid when flowing out of the branch channel 112 is consistent with that of other branch channels 112.

[0083] It can be understood that by adjusting the angle between the branch channel 112 and the corresponding outlet guide section 114, the fluid in the flow channel from the branch channel 112 to the main outlet 1112 can obtain appropriate flow rate and flow velocity, thereby improving the heat dissipation uniformity of the entire heat dissipation surface and reducing the risk of system failure caused by local overheating or insufficient flow.

[0084] In some embodiments, Figure 2-Figure 5 As shown, the heat exchange plate 110 is provided with: an inlet manifold 1151, an outlet manifold 1152 and a plurality of partition flow channels 116, each partition flow channel 116 includes a plurality of branch flow channels 112, each partition flow channel 116 is connected between a total inlet 1111 and a total outlet 1112, the inlet manifold 1151 is connected between the total inlet 1111 and each partition flow channel 116, and the outlet manifold 1152 is connected between the total outlet 1112 and each partition flow channel 116.

[0085] By dividing the heat exchange plate 110 into multiple partitioned flow channels 116, the heat can be distributed more evenly on the heat dissipation surface. Each partitioned flow channel 116 is responsible for the heat dissipation of a specific area, reducing uneven heat dissipation caused by excessive or insufficient local flow. The partitioned flow channel 116 can also independently control the flow rate inside it to adapt to the heat dissipation requirements of different areas. For example, in areas where heat generation is higher, the flow rate of the partitioned flow channel 116 can be increased to improve the heat dissipation efficiency.

[0086] Each partition flow channel 116 is connected between the main inlet 1111 and the main outlet 1112, and includes multiple branch channels 112, which can form a complete fluid circulation system. The multiple branch channels 112 work together to guide the cooling medium from the main inlet 1111 to the main outlet 1112, and evenly distribute it to the entire partition, while achieving heat dissipation in a specific area.

[0087] The inlet manifold 1151 is connected between the main inlet 1111 and each partitioned flow channel 116, and the outlet manifold 1152 is connected between the main outlet 1112 and each partitioned flow channel 116. The fluid enters the inlet manifold 1151 from the main inlet 1111, is distributed to different partitioned flow channels 116 in the inlet manifold 1151, flows out from different partitioned flow channels 116, and then merges into the outlet manifold 1152, and then flows out from the main outlet 1112.

[0088] It is understandable that the heat exchange plate 110 is provided with a plurality of partition flow channels 116 and a plurality of branch flow channels 112 therein, so that uniform heat distribution, precise flow control and maximum heat exchange efficiency can be achieved.

[0089] The length direction of the heat exchange plate 110 is taken as the first direction X, that is, the fluid flow direction at the total inlet 1111 and the total outlet 1112 , and the width direction of the heat exchange plate 110 is taken as the second direction Y. The first direction X and the second direction Y intersect.

[0090] The partition flow channel 116 has various configurations, including but not limited to:

[0091] In example 1, the fluid flow direction of the branch channel 112 is the second direction Y, and the plurality of partition channels 116 are sequentially arranged along the first direction X.

[0092] The fluid flow direction at the main inlet 1111 and the main outlet 1112 is the first direction X, the fluid flow direction of the branch channel 112 is perpendicular to the fluid flow direction at the main inlet 1111 and the main outlet 1112, and multiple partition channels 116 are arranged in sequence along the first direction X. Each partition channel 116 is connected between the main inlet 1111 and the main outlet 1112, and includes multiple branch channels 112 that are parallel to each other and do not affect each other, so as to form a complete fluid circulation system. Multiple branch channels 112 are mixed at the main inlet 1111 and the main outlet 1112.

[0093] Example 2: The fluid flow direction of the branch channel 112 is the first direction X, and the plurality of partition channels 116 are sequentially arranged along the second direction Y.

[0094] The fluid flow direction at the main inlet 1111 and the main outlet 1112 is the first direction X, the fluid flow direction of the branch channel 112 is the same as the fluid flow direction at the main inlet 1111 and the main outlet 1112, and multiple partition channels 116 are arranged in sequence along the second direction Y. Each partition channel 116 is connected between the main inlet 1111 and the main outlet 1112, and includes multiple branch channels 112 that are parallel to each other and do not affect each other, so as to form a complete fluid circulation system. Multiple branch channels 112 are mixed at the main inlet 1111 and the main outlet 1112.

[0095] Example 3: The fluid flow direction of the branch channel 112 is the first direction X, and the plurality of partition channels 116 are sequentially arranged along the second direction Y.

[0096] The fluid flow direction at the main inlet 1111 and the main outlet 1112 is the first direction X, the fluid flow direction of the branch channel 112 is the same as the fluid flow direction at the main inlet 1111 and the main outlet 1112, and multiple partition channels 116 are arranged in sequence along the second direction Y. Each partition channel 116 is connected between the main inlet 1111 and the main outlet 1112, and includes multiple branch channels 112 that are parallel to each other and do not affect each other, so as to form a complete fluid circulation system. Multiple branch channels 112 are mixed at the main inlet 1111 and the main outlet 1112.

[0097] In the following, the fluid flow direction of the branch channel 112 is taken as the first direction X, and the plurality of partition channels 116 are sequentially arranged in a surrounding manner along the second direction Y as an example.

[0098] In some embodiments, Figure 2-Figure 5 As shown, a plurality of partitioned flow channels 116 are arranged in series and surround each other.

[0099] The fluid flow direction of the branch channel 112 is the first direction X, and multiple U-shaped partition channels 116 are arranged in sequence along the second direction Y. The first partition channel 116a is located at the outermost periphery of the heat exchange plate 110, and from the outside to the inside are the first partition channel 116a, the second partition channel 116b and the third partition channel 116c.

[0100] After the fluid enters the inlet manifold 1151 from the main inlet 1111, it enters the first partition flow channel 116a, the second partition flow channel 116b and the third partition flow channel 116c respectively, realizing the diversion of the fluid, thereby reducing the pressure drop. The partition flow channel 116 is mainly allocated according to the distribution area of ​​the heat generated by the battery 1, among which the first partition flow channel 116a is responsible for the heat exchange of the battery core and the pole ear area, and the second partition flow channel 116b is responsible for the heat exchange of the battery center area.

[0101] After being divided, merged, and divided again in the branch channels 112 of different partitioned channels 116, the fluid flows out of the first partitioned channel 116a, the second partitioned channel 116b, and the third partitioned channel 116c respectively, and flows out from the main outlet 1112 after merging in the outlet manifold 1152. The U-shaped structure has a short length, a small pressure drop, and a stronger heat exchange capacity. The diameters of the branch channels 112 of different partitioned channels 116 are set to increase in sequence to balance the pressure drops of different partitioned channels 116. Specifically, the diameter of the branch channel 112 of the first partitioned channel 116a is the largest, the diameter of the branch channel 112 of the second partitioned channel 116b is the second, and the diameter of the branch channel 112 of the third partitioned channel 116c is the smallest.

[0102] It can be understood that the plurality of partitioned flow channels 116 are arranged in a surrounding manner in sequence, so as to achieve uniform distribution of heat and stability of fluid flow.

[0103] In some embodiments, Figure 2-Figure 5 As shown, the branch channel 112 includes an inlet branch channel 1121 and a return branch channel 1122; the partition channel 116 includes an inlet main branch 117, multiple inlet branch channels 1121, a confluence branch 118, multiple return branch channels 1122 and an outlet main branch 119 connected in sequence, the inlet end of the inlet main branch 117 is connected to the main inlet 1111 through an inlet confluence pipe 1151, and the outlet end of the outlet main branch 119 is connected to the main outlet 1112 through an outlet confluence pipe 1152.

[0104] The inlet end of the inlet main branch 117 is connected to the main inlet 1111 through the inlet manifold 1151. The inlet main branch 117 serves as the starting point of the partition flow channel 116 and is responsible for distributing the cooling medium entering the inlet manifold 1151 from the main inlet 1111 to each water inlet branch channel 1121. Multiple water inlet branch channels 1121 are branched out from the inlet main branch 117, each of which is responsible for transporting the cooling medium to a specific heat dissipation area. The number and layout of the water inlet branch channels 1121 are optimized according to the heat dissipation requirements and heat source distribution.

[0105] After completing the heat exchange, the cooling medium in each water inlet branch channel 1121 is collected into the confluence branch 118. The confluence branch 118 is divided into multiple return water branch channels 1122, which are responsible for transporting the cooling medium back to the outlet main branch 119. The outlet main branch 119 serves as the end point of the partition channel 116. The outlet end of the outlet main branch 119 is connected to the main outlet 1112 through the outlet confluence pipe 1152, which is responsible for collecting and discharging the cooling medium from each return water branch channel 1121122.

[0106] It can be understood that by finely dividing the branch flow channel 112 and constructing the partitioned flow channel 116 system, precise control and efficient use of the cooling medium can be achieved, thereby improving the heat dissipation efficiency and uniformity of fluid flow.

[0107] In some embodiments, Figure 2-Figure 5 As shown, the inlet main branches 117 of multiple partitioned flow channels 116 are arranged adjacent to each other, the inlet branch channels 1121 of multiple partitioned flow channels 116 are arranged adjacent to each other, the confluence branches 118 of multiple partitioned flow channels 116 are arranged adjacent to each other, the return branch channels 1122 of multiple partitioned flow channels 116 are arranged adjacent to each other, and the outlet main branches 119 of multiple partitioned flow channels 116 are arranged adjacent to each other.

[0108] The adjacent arrangement can maximize the use of the space of the heat exchange plate 110 and reduce unnecessary gaps and waste. Through a compact layout, each partitioned flow channel 116 can effectively cover the heat dissipation area, thereby improving the overall heat dissipation performance.

[0109] The inlet main branches 117 are arranged adjacent to each other, and the cooling medium entering the inlet manifold 1151 from the main inlet 1111 can be quickly and evenly distributed to the inlet main branches 117 of each partition flow channel 116. The adjacent arrangement can also reduce the path length and resistance of the fluid during the distribution process, thereby improving the uniformity of flow distribution.

[0110] The adjacent arrangement of the water inlet branch channels 1121 can enable the cooling medium to maintain similar flow rate and pressure when flowing through each heat dissipation area, which helps to reduce local overheating or insufficient cooling caused by uneven flow rate. After the heat exchange is completed, the cooling medium in each water inlet branch channel 1121 is converged into the adjacent confluence branch 118. This layout can simplify the process of fluid merging, reduce the generation of vortices, and improve the stability of fluid flow.

[0111] The adjacent setting of the return branch channels 1122 can allow the cooling medium to flow smoothly back to the outlet main branch 119, reduce the length and complexity of the return path, reduce fluid resistance and energy loss, and the adjacent setting of the outlet main branch 119 can enable the cooling medium from each return branch channel 1122 to be discharged quickly and centrally, which helps to maintain the overall fluid balance and stability of the system.

[0112] It can be understood that the manner in which the components of the plurality of partitioned flow channels 116 are arranged adjacent to each other can optimize the fluid flow path and help improve space utilization and thermal management efficiency.

[0113] In some embodiments, Figure 2-Figure 5 As shown, at least part of the partitioned flow channels 116 is provided with a plurality of confluence branches 118 , and adjacent confluence branches 118 in two adjacent partitioned flow channels 116 are connected.

[0114] In the partitioned flow channel 116, the cooling medium that has completed the heat exchange can be collected to the subsequent flow channel or outlet through multiple paths, which helps to disperse the fluid pressure, reduce the generation of vortex, and improve the stability of fluid flow.

[0115] At least some of the partitioned flow channels 116 are provided with a plurality of confluence branches 118. In two adjacent partitioned flow channels 116, the adjacent confluence branches 118 are designed to be interconnected to allow a certain degree of confluence and redistribution of the cooling medium between the adjacent partitioned flow channels 116. When the heat dissipation demand of a partitioned flow channel 116 is high, the cooling medium in the adjacent partitioned flow channels 116 can be supplemented through the connected confluence branches 118, thereby maintaining the thermal balance of the entire system.

[0116] It is understandable that at least some of the partitioned flow channels 116 are provided with a plurality of confluence branches 118 , and adjacent confluence branches 118 are connected in adjacent partitioned flow channels 116 , which helps to optimize the flow path of the cooling medium, reduce thermal resistance and temperature difference, and thus improve heat dissipation efficiency.

[0117] The embodiments of the present application are described in detail below.

[0118] In this embodiment, if Figure 2-Figure 5 As shown, the fluid enters the inlet manifold 1151 from the main inlet 1111, and is divided in the inlet manifold 1151 to enter the adjacently arranged first partitioned flow channel 116a, second partitioned flow channel 116b and third partitioned flow channel 116c.

[0119] like Figure 3 As shown, in the first partitioned flow channel 116a, the fluid from the inlet manifold 1151 enters the first inlet main branch 117a, and enters the three adjacent water inlet branch channels 1121 after being divided in the first inlet guide section 113a. The fluid flowing out of the water inlet branch channel 1121 close to the second partitioned flow channel 116b merges with the fluid in the second partitioned flow channel 116b and enters the second converging branch 1182. The fluid flowing out of the other two water inlet branch channels 1121 merges and enters the first converging branch. 1181, the fluid flowing out of the second confluence branch 1182 enters the outlet branch channel 1122 close to the second partition flow channel 116b, and the fluid flowing out of the first confluence branch 1181 is divided and enters the other two adjacent outlet branch channels 1122. The fluid flowing through the three outlet branch channels 1122 merges at the first outlet guide section 114a, enters the first outlet main branch 119a, and then merges with the second partition flow channel 116b and the third partition flow channel 116c in the outlet confluence pipe 1152.

[0120] like Figure 4As shown, in the second partitioned flow channel 116b, the fluid from the inlet manifold 1151 enters the second inlet main branch 117b, and enters the three adjacent water inlet branch channels 1121 after being divided in the second inlet guide section 113b. The fluid flowing out of the water inlet branch channel 1121 close to the first partitioned flow channel 116a merges with the fluid in the first partitioned flow channel 116a and enters the second converging branch 1182. The fluid flowing out of the other two water inlet branch channels 1121 merges with the fluid in the third partitioned flow channel 116c and enters the third partitioned flow channel 116c. Three confluence branches 1183, the fluid flowing out of the second confluence branch 1182 enters the outlet branch channel 1122 near the first partition flow channel 116a, the fluid flowing out of the third confluence branch 1183 is divided and enters the two outlet branch channels 1122 near the third partition flow channel 116c, the fluid flowing through the three outlet branch channels 1122 merges at the second outlet guide section 114b, enters the second outlet main branch 119b, and then merges with the first partition flow channel 116a and the third partition flow channel 116c in the outlet confluence pipe 1152.

[0121] like Figure 5 As shown, in the third partitioned flow channel 116c, the fluid from the inlet manifold 1151 enters the third inlet main branch 117c, and is diverted in the third inlet guide section 113c to enter the three adjacent water inlet branch channels 1121. The fluid flowing out of the water inlet branch channel 1121 merges with the fluid in the second partitioned flow channel 116b and enters the third confluence branch 1183. The fluid flowing out of the third confluence branch 1183 is diverted and enters the three adjacent water outlet branch channels 1122. The fluid flowing through the three water inlet branch channels 1121 merges in the third outlet guide section 114c, enters the third outlet main branch 119c, and then merges with the first partitioned flow channel 116a and the second partitioned flow channel 116b in the outlet manifold 1152.

[0122] The fluids flowing out from the adjacent first partitioned flow channel 116 a , the second partitioned flow channel 116 b , and the third partitioned flow channel 116 c merge in the outlet manifold 1152 and flow out of the main outlet 1112 .

[0123] In addition, the first partitioned flow channel 116a has a larger heat exchange demand. The flow rate is increased by reducing the overall pressure drop of the first partitioned flow channel 116a. Part of the fluid in the first partitioned flow channel 116a merges with part of the fluid in the second partitioned flow channel 116b to adjust the flow rate differences of the partitioned flow channels 116 due to different flow paths, thereby improving the uniformity of heat exchange.

[0124] The number of inlet tributaries 1121 and outlet tributaries 1122 of the partitioned flow channel 116 is the same. The first partitioned flow channel 116a and the second partitioned flow channel 116b each have three single-side tributaries 112, and the third partitioned flow channel 116c has four single-side tributaries 112, which are used to reduce the flow rate of the third partitioned flow channel 116c. Two spoilers can also be set in the third inlet guide section 113c and the third outlet guide section 114c of the third partitioned flow channel 116c, so that the flow rate of the four single-side tributaries 112 allocated to the third partitioned flow channel 116c is more uniform.

[0125] The diameters of the branch channels 112 of the first partitioned flow channel 116a, the second partitioned flow channel 116b and the third partitioned flow channel 116c are set to increase successively, which can balance the high pressure drop problem caused by the partitioned flow channel 116 along the way.

[0126] The present application embodiment also provides a battery 1, such as Figure 1 As shown, it includes: a battery pack 20 and a heat exchange component 10, and the heat exchange component 10 is used to exchange heat for the battery pack 20.

[0127] The battery pack 20 is the core part of the battery 1, which is composed of multiple battery cells connected in series, parallel or mixed. The battery pack 20 is responsible for storing and providing electrical energy. The heat exchange component 10 is a thermal management system designed specifically for the battery pack 20, which is used to control the temperature of the battery pack 20 during operation.

[0128] As the battery 1 is charged and discharged, a large amount of heat is generated inside the battery 1. The heat exchange component 10 absorbs and removes the heat generated by the battery pack 20 through a circulating cooling medium, such as water or ethylene glycol, to help the battery pack 20 operate within a suitable temperature range.

[0129] The heat exchange component 10 is designed with complex cooling channels inside. These channels fit closely to the surface of the battery pack 20. The cooling channels are usually made of high thermal conductivity materials to improve the heat exchange efficiency between the cooling medium and the battery pack 20. The cooling medium circulates in the cooling channels under the action of the pump. After absorbing the heat generated by the battery pack 20, the temperature of the cooling medium rises, and then the heat is transferred to the external environment through the heat exchanger, thereby reducing the temperature of the cooling medium and achieving heat dissipation.

[0130] It is understandable that the heat exchange component 10 can quickly take away the heat generated by the battery pack 20. By controlling the temperature of the battery pack 20, problems such as aging and capacity decay of the battery 1 caused by high temperature can be reduced, thereby extending the service life of the battery 1.

[0131] In some embodiments, Figure 1 and Figure 7 As shown, the battery 1 further includes: a box body 30 and a pipe joint 40 .

[0132] The box body 30 forms a receiving cavity, and the battery pack 20 and the heat exchange assembly 10 are installed in the receiving cavity;

[0133] The pipe joint 40 is connected to the main inlet 1111 and the main outlet 1112 of the heat exchange assembly 10 and is a metal pipe. The pipe joint 40 passes through the front beam 310 of the box body 30 .

[0134] The housing 30 is the main structural part of the battery 1, mainly forming a closed accommodating cavity for installing and protecting the battery pack 20 and the heat exchange assembly 10. The housing 30 is usually made of a strong and corrosion-resistant material to improve the stability and safety of the battery 1 in various environments.

[0135] The battery pack 20 is installed in the accommodating cavity of the box body 30 and is the main energy source of the battery 1. The battery pack 20 is composed of multiple battery cells, which are connected in series, parallel or mixed to meet specific voltage and capacity requirements. The heat exchange component 10 is also installed in the accommodating cavity of the box body 30 and is used to perform thermal management on the battery pack 20. It mainly absorbs and takes away the heat generated by the battery pack 20 through the circulating cooling medium, helping the battery pack 20 to operate within an appropriate temperature range.

[0136] like Figure 6 As shown, the heat exchange component 10 includes a heat exchange plate 110 and a base plate 120. The heat exchange plate 110 provided with a cooling channel fits tightly against the surface of the battery pack 20 to maximize the heat exchange efficiency. The pipe joint 40 is a key component for connecting the heat exchange component 10 with an external cooling system or a heat exchanger. The pipe joint 40 is respectively connected to the total inlet 1111 and the total outlet 1112 of the heat exchange component 10, so that the cooling medium can circulate in the heat exchange component 10 and realize heat exchange with the external system.

[0137] The pipe joint 40 is made of metal material to improve its strength and corrosion resistance. The pipe joint 40 passes through the front beam 310 of the box body 30 to facilitate the connection and maintenance of the cooling system.

[0138] As shown in the figure, the pipe joint 40 includes: a brazing column 410, a transition tube 420 and a sealing mounting block 430, wherein the brazing column 410 is brazed integrally with the heat exchange plate 110, and its small volume of heat absorption can meet the temperature uniformity requirement during brazing of the heat exchange plate 110, thereby improving the welding quality of the entire plate. In addition, the transition tube 420 can be connected to the brazing column 410 and the sealing mounting block 430 respectively by flame welding or high-frequency welding. Finally, the mounting block is installed on the front beam 310 of the box body 30 through a threaded connector 440, and a sealing ring 450 is placed in the middle to ensure the airtightness of the entire package.

[0139] It is understandable that by integrating components such as the housing 30, the battery pack 20, the heat exchange assembly 10 and the pipe joint 40, a highly efficient, reliable and easy-to-maintain battery system can be formed.

[0140] The embodiment of the present application also provides an electrical device.

[0141] The electric device comprises a battery 1, and the battery 1 is used to provide electric energy to the electric device.

[0142] The electrical device uses the integrated battery 1 as a source of energy. The electrical device is a broad concept and may be, but not limited to, mobile phones, tablets, laptops, electric vehicles, and ships, etc., ranging from simple portable electronic devices to complex household appliances and industrial equipment.

[0143] Battery 1 is one of the core components of the electrical device and is responsible for converting chemical energy into electrical energy to provide a continuous and stable power supply for the device. Compared with a fixed power source, battery 1 has higher portability, allowing the electrical device to work independently without an external power source.

[0144] It is understandable that the electrical device uses the integrated battery 1 as an energy source to drive its internal working mechanism or perform a specific function.

[0145] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0146] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0147] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0148] In the description of the present application, “plurality” means two or more.

[0149] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0150] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0151] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0152] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A heat exchange component, characterized in that: The invention comprises a heat exchange plate, wherein the heat exchange plate is provided with: a main inlet, a main outlet and a plurality of branch channels connected between the main inlet and the main outlet, wherein the inlet end of the branch channel is connected to the main inlet through the inlet guide section, and the flow cross-sectional area of ​​the inlet guide section first decreases and then expands along the flow direction of the medium.

2. The heat exchange assembly according to claim 1, characterized in that: The included angle between each branch flow channel and the corresponding inlet guide section is negatively correlated with the flow channel distance from the branch flow channel to the main inlet.

3. The heat exchange assembly according to claim 1, characterized in that: The outlet end of the branch flow channel is connected to the main outlet through the outlet guide section, and the flow cross-sectional area of ​​the outlet guide section first decreases and then expands along the flow direction of the medium.

4. The heat exchange assembly according to claim 3, characterized in that: The included angle between each branch flow channel and the corresponding outlet guide section is negatively correlated with the flow channel distance from the branch flow channel to the main outlet.

5. The heat exchange assembly according to any one of claims 1 to 4, characterized in that: The heat exchange plate is provided with: an inlet manifold, an outlet manifold and a plurality of partitioned flow channels, each of the partitioned flow channels comprises a plurality of branch flow channels, each of the partitioned flow channels is connected between the total inlet and the total outlet, the inlet manifold is connected between the total inlet and each of the partitioned flow channels, and the outlet manifold is connected between the total outlet and each of the partitioned flow channels.

6. The heat exchange assembly according to claim 5, characterized in that: The multiple partitioned flow channels are arranged in sequence and surround each other.

7. The heat exchange assembly according to claim 6, characterized in that: The branch channels include inlet branch channels and return branch channels; the partitioned channels include an inlet main branch, a plurality of inlet branch channels, a confluence branch, a plurality of return branch channels and an outlet main branch connected in sequence, the inlet end of the inlet main branch is connected to the main inlet through the inlet confluence pipe, and the outlet end of the outlet main branch is connected to the main outlet through the outlet confluence pipe.

8. The heat exchange assembly according to claim 7, characterized in that: The inlet main branches of the multiple partitioned flow channels are arranged adjacent to each other, the inlet branch channels of the multiple partitioned flow channels are arranged adjacent to each other, the confluence branches of the multiple partitioned flow channels are arranged adjacent to each other, the return branch channels of the multiple partitioned flow channels are arranged adjacent to each other, and the outlet main branches of the multiple partitioned flow channels are arranged adjacent to each other.

9. The heat exchange assembly according to claim 7, characterized in that: At least part of the partitioned flow channels are provided with a plurality of the confluence branches, and the adjacent confluence branches in two adjacent partitioned flow channels are connected.

10. A battery, characterized in that: include: Battery pack; The heat exchange assembly according to any one of claims 1 to 9, wherein the heat exchange assembly is used to exchange heat for the battery pack.

11. The battery according to claim 10, characterized in that include: A box body, forming a receiving cavity, wherein the battery pack and the heat exchange assembly are installed in the receiving cavity; The pipe joint is connected to the total inlet and the total outlet of the heat exchange component and is a metal pipe. The pipe joint passes through the front beam of the box body.

12. An electrical device, characterized in that: include: The battery according to claim 10 or 11, wherein the battery is used to provide electrical energy to the electrical device.

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