CN119812552B - Heat exchange assembly, battery and power utilization device - Google Patents
Heat exchange assembly, battery and power utilization deviceInfo
- Publication number
- CN119812552B CN119812552B CN202411411794.0A CN202411411794A CN119812552B CN 119812552 B CN119812552 B CN 119812552B CN 202411411794 A CN202411411794 A CN 202411411794A CN 119812552 B CN119812552 B CN 119812552B
- Authority
- CN
- China
- Prior art keywords
- inlet
- branch
- heat exchange
- outlet
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
Abstract
本申请公开了一种换热组件、电池和用电装置，属于电池技术领域。换热组件包括换热板，换热板设有：总进口、总出口以及连接于总进口与总出口之间的多个支流道，其中支流道的进口端通过进口导流段与总进口相连，进口导流段的流通截面积沿介质流向先减小再扩大。本申请的技术方案中，通过精确控制支流道和进口导流段的尺寸与形状，可以减少涡流的产生，进一步实现散热性能与流体阻力的平衡，提高不同区域流道的流量均匀性以及换热组件的换热效率。
This application discloses a heat exchange component, a battery, and an electrical device, belonging to the field of battery technology. The heat exchange component includes a heat exchange plate, which has a main inlet, a main outlet, and multiple branch channels connecting the main inlet and the main outlet. The inlet end of each branch channel is connected to the main inlet via an inlet guide section, and the flow cross-sectional area of the inlet guide section first decreases and then expands along the medium flow direction. In the technical solution of this application, by precisely controlling the size and shape of the branch channels and the inlet guide section, the generation of eddies can be reduced, further achieving a balance between heat dissipation performance and fluid resistance, improving the flow uniformity of different flow areas and the heat exchange efficiency of the heat exchange component.
Description
Technical Field
The application belongs to the technical field of batteries, and particularly relates to a heat exchange assembly, a battery and an electric device.
Background
The heat density generated by the battery pack in the working process is high, and a heat exchange plate is usually placed between two layers of batteries for heat exchange. In the related art, because the flow channels of the heat exchange plate are designed to be in a bending form, local vortex is easy to form at the turning positions of the flow channels, so that the fluid flow velocity is uneven, further, the thermal stress is concentrated, the heat exchange efficiency is affected, and there is room for improvement.
Disclosure of Invention
The application aims to at least solve the technical problem of poor temperature uniformity of the battery cells in the related technology. Therefore, the application provides the heat exchange assembly, the battery and the power utilization device, and the heat exchange efficiency of the heat exchange assembly can be improved.
In a first aspect, the application provides a heat exchange assembly, which comprises a heat exchange plate, wherein the heat exchange plate is provided with a main inlet, a main outlet and a plurality of branch flow passages connected between the main inlet and the main outlet, the inlet ends of the branch flow passages are connected with the main inlet through inlet guide sections, and the flow cross section area of the inlet guide sections is firstly reduced and then enlarged along the medium flow direction.
Through accurate control the size and the shape of branch runner with the inducer section, can reduce the production of vortex, further realize heat dispersion and fluid resistance's balance, improve the flow homogeneity of different regional runners and heat exchange assembly's heat exchange efficiency.
According to one embodiment of the present application, an included angle between each of the branch channels and the corresponding inducer is inversely related to a channel distance from the branch channel to the total inlet.
By adjusting the included angle between the branch flow passage and the corresponding inlet flow guide section, the branch flow passages in different areas can obtain proper flow and flow velocity, so that the heat dissipation uniformity of the whole heat dissipation surface is improved, and the system failure risk caused by local overheating or insufficient flow is reduced.
According to one embodiment of the application, the outlet end of the branch flow channel is connected with the main outlet through the outlet diversion section, and the flow cross section area of the outlet diversion section is reduced and then enlarged along the medium flow direction.
The design of the inducer and exducer combine to form a highly efficient fluid flow path, the inducer increasing heat exchange efficiency by accelerating the fluid and reducing eddies, and the exducer helping the fluid leave the branch flow path smoothly by optimizing flow rate and pressure distribution.
According to one embodiment of the application, the included angle between each of the branch channels and the corresponding outlet guide section is inversely related to the channel distance from the branch channel to the total outlet.
By adjusting the included angle between the branch flow passage and the corresponding outlet flow guide section, the fluid in the flow passage from the branch flow passage to the total outlet can obtain proper flow and flow velocity, so that the heat dissipation uniformity of the whole heat dissipation surface is improved, and the system failure risk caused by local overheating or insufficient flow is reduced.
According to one embodiment of the application, the heat exchange plate is provided with an inlet collecting pipe, an outlet collecting pipe and a plurality of partition flow channels, wherein each partition flow channel comprises a plurality of branch flow channels, each partition flow channel is connected between the total inlet and the total outlet, the inlet collecting pipe is connected between the total inlet and each partition flow channel, and the outlet collecting pipe is connected between the total outlet and each partition flow channel.
The partition flow channels and the branch flow channels in the partition flow channels are arranged in the heat exchange plate, so that uniform distribution of heat, accurate control of flow and maximization of heat exchange efficiency can be realized.
According to one embodiment of the present application, the plurality of partition flow channels are sequentially arranged around.
The plurality of the partition flow channels are sequentially arranged in a surrounding mode, and therefore uniform distribution of heat and stability of fluid flow can be achieved.
According to one embodiment of the application, the branch flow channel comprises a water inlet branch flow channel and a water return branch flow channel, the partition flow channel comprises an inlet total branch, a plurality of water inlet branch flow channels, a confluence branch flow channel, a plurality of water return branch flow channels and an outlet total branch flow channel which are sequentially connected, the inlet end of the inlet total branch flow channel is connected with the total inlet through the inlet confluence pipe, and the outlet end of the outlet total branch flow channel is connected with the total outlet through the outlet confluence pipe.
By subdividing the branch flow channels and constructing the partition flow channel system, accurate control and efficient utilization of cooling medium are realized, and heat dissipation efficiency and uniformity of fluid flow can be improved.
According to one embodiment of the present application, the inlet branch paths of the plurality of partition flow channels are disposed adjacent to each other, the confluent branch paths of the plurality of partition flow channels are disposed adjacent to each other, the return branch paths of the plurality of partition flow channels are disposed adjacent to each other, and the outlet branch paths of the plurality of partition flow channels are disposed adjacent to each other.
The manner in which the individual components of the plurality of partitioned flow channels are disposed adjacent one another can optimize the fluid flow path and facilitate improved space utilization and thermal management efficiency.
According to one embodiment of the application, at least part of the partition flow channels are provided with a plurality of the converging branches, and adjacent converging branches in two adjacent partition flow channels are communicated.
At least part of the partition flow channels are provided with a plurality of converging branches, and the adjacent converging branches are communicated in the adjacent partition flow channels, so that the flow path of cooling medium is optimized, the thermal resistance and the temperature difference are reduced, and the heat dissipation efficiency is improved.
In a second aspect, the present application provides a battery, characterized by comprising:
A battery pack;
A heat exchange assembly according to any one of the preceding claims for exchanging heat to the battery pack.
The heat exchange assembly can rapidly take away heat generated by the battery pack, and the problems of battery aging, capacity attenuation and the like caused by high temperature can be reduced by controlling the temperature of the battery pack, so that the service life of the battery is prolonged.
According to one embodiment of the present application, a battery includes:
The box body forms a containing cavity, and the battery pack and the heat exchange assembly are arranged in the containing cavity;
the pipe joint is connected with the total inlet and the total outlet of the heat exchange assembly and is a metal pipe, and the pipe joint penetrates through the front beam of the box body.
By integrating the box, the battery pack, the heat exchange assembly, the pipe joint and other components, an efficient, reliable and easy-to-maintain battery system can be formed.
In a third aspect, the present application provides an electrical device comprising a battery for providing electrical energy to the electrical device.
The power utilization device uses the battery as an energy source through integration to drive an internal working mechanism or execute specific functions.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
Fig. 1 is a schematic view of a battery according to an embodiment of the present application;
Fig. 2 is a schematic structural view of a heat exchange plate of the heat exchange assembly according to an embodiment of the present application;
FIG. 3 is a schematic structural view of a first partition runner of a heat exchange plate of a heat exchange assembly according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a second partition runner of a heat exchange plate of a heat exchange assembly according to an embodiment of the present application;
FIG. 5 is a schematic structural view of a third partition runner of a heat exchange plate of a heat exchange assembly according to an embodiment of the present application;
FIG. 6 is a schematic view of a heat exchange assembly according to an embodiment of the present application;
fig. 7 is a schematic structural view of a pipe joint of a battery according to an embodiment of the present application.
Reference numerals:
a battery 1;
a heat exchange assembly 10;
a heat exchange plate 110, a substrate 120;
A total inlet 1111 and a total outlet 1112;
branch flow passage 112, water inlet branch flow passage 1121, and water return branch flow passage 1122;
Inducer 113, first inducer 113a, second inducer 113b, and third inducer 113c;
an exducer section 114, a first exducer section 114a, a second exducer section 114b, and a third exducer section 114c;
an inlet manifold 1151 and an outlet manifold 1152;
a partition flow passage 116, a first partition flow passage 116a, a second partition flow passage 116b, and a third partition flow passage 116c;
an inlet total branch 117, a first inlet total branch 117a, a second inlet total branch 117b, and a third inlet total branch 117c;
Bus bar 118, first bus bar 1181, second bus bar 1182, and third bus bar 1183;
An outlet total branch 119, a first outlet total branch 119a, a second outlet total branch 119b, and a third outlet total branch 119c;
A battery pack 20;
A case 30, a front beam 310;
Pipe joint 40, brazing upright column 410, adapting round pipe 420, sealing installation block 430, threaded connector 440 and sealing ring 450;
First direction X, second direction Y.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
The application aims to at least solve the technical problem of poor temperature uniformity of the battery cells in the related technology. Therefore, the application provides the heat exchange assembly, the battery and the power utilization device, and the heat exchange efficiency of the heat exchange assembly can be improved.
A heat exchange assembly 10 according to an embodiment of the present application is described below with reference to fig. 1-7.
As shown in fig. 1 and 2, the heat exchange assembly 10 includes a heat exchange plate 110, and the heat exchange plate 110 is provided with a main inlet 1111, a main outlet 1112, and a plurality of branch flow passages 112 connected between the main inlet 1111 and the main outlet 1112, wherein an inlet end of the branch flow passage 112 is connected with the main inlet 1111 through an inlet guide section 113, and a flow cross-sectional area of the inlet guide section 113 is reduced and then enlarged along a medium flow direction.
The heat exchange plate 110 is a core component of the heat exchange assembly 10, and mainly guides a cooling medium to a surface of a component to be cooled through a fluid channel in the heat exchange plate, and takes away heat through heat exchange, when the cooling medium is water, glycol or other cooling liquid, the heat exchange plate 110 can be a liquid cooling plate, the fluid channel in the heat exchange plate 110 is a plurality of branch channels 112 connected between the total inlet 1111 and the total outlet 1112, and the plurality of branch channels 112 can uniformly distribute the cooling medium to each area, so that the uniformity of heat dissipation is improved, and the shape, the number and the layout of the branch channels 112 can directly influence the cooling effect.
The inlet end of the branch flow passage 112 is connected with the main inlet 1111 through the inlet guide section 113, a cooling medium enters from the main inlet 1111 and then enters the branch flow passage 112 through the inlet guide section 113, and the flow cross section area of the inlet guide section 113 is firstly reduced and then enlarged along the flow direction of the medium, namely, a Laval structure which is firstly contracted and then expanded is formed, so that the fluid can be accelerated, and the generation of vortex is reduced.
At the inlet end of the branch channel 112, the abrupt change of the geometric shape of the channel causes boundary layer separation of the fluid, the separated fluid forms vortex in a low-pressure area, the vortex can cause disturbance of the flowing direction of the fluid, the fluid resistance and the energy consumption of a system are increased, the heat exchange efficiency is reduced, and meanwhile, the vortex formed in the low-pressure area causes uneven local stress of the material, so that the plate is locally fatigued and the service life is influenced.
The fluid is located in the inducer 113 before entering the branch flow passage 112, and along with the flow of the fluid, the flow cross-sectional area of the inducer 113 is gradually reduced, the flow velocity of the fluid is gradually increased, a high pressure area is formed, and the acceleration effect helps to increase the flow velocity of the fluid in the branch flow passage 112, so that the heat exchange efficiency is improved.
It will be appreciated that the gradual reduction and subsequent expansion of inducer 113 may direct the direction of fluid flow, effectively reducing the occurrence of turbulence and allowing fluid to more smoothly enter branch flow passage 112.
The heat generated by the battery packs 20 during operation has a high heat density, and the heat exchange plates 110 are generally placed between the two layers of the battery packs 20 to exchange heat. In the related art, the flow channel in the heat exchange plate 110 is complex, especially, the flow rate of the converging branch 118 is too high, so that the heat exchange amount at the edge of the heat exchange plate 110 is far greater than the heat exchange area of the battery cell, which causes local overheating or supercooling of the battery cell at the inner edge of the battery pack 20, resulting in poor temperature uniformity of the battery cell, affecting the normal operation and service life of the battery cell, and there is room for improvement.
According to the heat exchange assembly 10 provided by the embodiment of the application, by precisely controlling the sizes and the shapes of the branch flow passage 112 and the inlet guide section 113, the generation of vortex can be reduced, the balance of heat dissipation performance and fluid resistance is further realized, and the flow uniformity of different partition flow passages 116 and the heat exchange efficiency of the heat exchange assembly 10 are improved.
In some embodiments, as shown in fig. 3-5, the included angle between each branch flow passage 112 and the corresponding inducer 113 is inversely related to the flow passage distance from the branch flow passage 112 to the total inlet 1111, so as to balance the distribution and flow velocity of the fluid in different branch flow passages 112, thereby improving the heat exchange uniformity.
The larger the flow path distance from the branch flow path 112 to the total inlet 1111 is, the more flow is distributed by the branch flow path 112, the greater the fluid kinetic energy is, and the fluid is easier to flow according to the original direction, and the included angle between the branch flow path 112 and the corresponding inlet guide section 113 is set to be an acute angle, so that the fluid flow direction can be adjusted, and the uniform flow distribution of different branch flow paths 112 can be realized.
When the distance from the branch flow passage 112 to the total inlet 1111 is longer, the loss of fluid in the flow passage is larger, the flow velocity and pressure of the fluid are gradually reduced, more flow is required to be distributed to increase the kinetic energy of the fluid, and the included angle between the branch flow passage 112 and the corresponding inlet guide section 113 is set to be an acute angle, so that the flow direction of the fluid can be guided, the generation of vortex is effectively reduced, and the fluid can enter the branch flow passage 112 more stably.
Correspondingly, when the distance from the branch flow passage 112 to the total inlet 1111 is smaller, the loss of the fluid in the flow passage is smaller, the flow velocity and pressure are relatively higher, the allocated flow is smaller, and the included angle between the branch flow passage 112 and the corresponding inlet guide section 113 is set to be a right angle, so that the influence on the fluid can be reduced, and the flow velocity when the fluid enters the branch flow passage 112 is more consistent with that of other branch flow passages 112.
It can be appreciated that by adjusting the included angle between the branch flow passage 112 and the corresponding inlet flow guiding section 113, the branch flow passage 112 in different areas can obtain proper flow and flow velocity, so as to improve the heat dissipation uniformity of the whole heat dissipation surface and reduce the risk of system failure caused by local overheating or insufficient flow.
In some embodiments, as shown in fig. 3-5, the outlet end of the branch flow channel 112 is connected to the main outlet 1112 through an outlet flow guiding section 114, and the flow cross-sectional area of the outlet flow guiding section 114 is reduced and then enlarged along the medium flow direction.
The outlet end of the branch flow channel 112 is connected with the main outlet 1112 through the outlet flow guiding section 114, the flow cross section area of the outlet flow guiding section 114 is firstly reduced and then enlarged along the medium flow direction, and similar to the inlet flow guiding section 113, a Laval structure which is firstly contracted and then expanded is formed, so that the fluid can be accelerated, and the generation of vortex is reduced.
At the outlet end of the branch channel 112, the abrupt change of the geometric shape of the channel causes boundary layer separation of the fluid, the separated fluid forms vortex in a low-pressure area, the vortex can cause disturbance of the flowing direction of the fluid, the fluid resistance and the energy consumption of a system are increased, the heat exchange efficiency is reduced, and meanwhile, the vortex formed in the low-pressure area causes uneven local stress of the material, so that the plate is locally fatigued and the service life is influenced.
At the beginning of the inducer portion 114, the decrease in cross-sectional flow area will increase the fluid flow rate, which will help to carry heat away from the fluid more quickly and reduce stagnation and accumulation at the outlet, and the subsequent increase in cross-sectional flow area will gradually decrease the fluid flow rate, which will help to more smoothly exit the branch flow passage 112 and reduce turbulence and eddies due to abrupt changes.
The gradual reduction and subsequent expansion of the inducer 114 may direct the flow of fluid, effectively reducing the occurrence of turbulence, and allowing fluid to more smoothly flow out of the branch flow passage 112, primarily through a longer length of the inducer during actual operation.
By adjusting the shape and size of the inducer 114, the flow rate and pressure distribution of the fluid at the outlet end of the branch flow channel 112 can be further controlled, which helps the fluid to continue to flow at a higher speed after leaving the branch flow channel 112, thereby improving the heat dissipation efficiency.
It will be appreciated that the combination of the designs of inducer 113 and inducer 114 provides a highly efficient fluid flow path, inducer 113 improving heat exchange efficiency by accelerating the fluid and reducing eddies, and inducer 114 helping the fluid leave the side flow path 112 smoothly by optimizing flow rate and pressure distribution.
In some embodiments, as shown in fig. 3-5, the included angle of each branch flow channel 112 with the corresponding outlet guide section 114 is inversely related to the flow channel distance from the branch flow channel 112 to the total outlet 1112.
When the channel distance from the branch channel 112 to the total outlet 1112 is far, the included angle between the branch channel 112 and the corresponding outlet guide section 114 is set to be an acute angle, so that the flow direction of the fluid can be guided, the generation of vortex is effectively reduced, and the fluid flows out of the branch channel 112 more stably.
It can be appreciated that by adjusting the included angle between the branch flow passage 112 and the corresponding outlet flow guiding section 114, the flow in the flow passage from the branch flow passage 112 to the total outlet 1112 can obtain proper flow and velocity, so as to improve the heat dissipation uniformity of the whole heat dissipation surface and reduce the risk of system failure caused by local overheating or insufficient flow.
In some embodiments, as shown in FIGS. 2-5, heat exchange plate 110 is provided with an inlet manifold 1151, an outlet manifold 1152, and a plurality of partition runners 116, each partition runner 116 including a plurality of branch runners 112, each partition runner 116 being connected between a total inlet 1111 and a total outlet 1112, inlet manifold 1151 being connected between total inlet 1111 and each partition runner 116, and outlet manifold 1152 being connected between total outlet 1112 and each partition runner 116.
Through dividing the heat exchange plate 110 into a plurality of partition flow channels 116, heat can be more uniformly distributed on a heat dissipation surface, each partition flow channel 116 is responsible for heat dissipation in a specific area, uneven heat dissipation caused by overlarge or undersize local flow is reduced, the flow in the partition flow channel 116 can be independently controlled so as to adapt to heat dissipation requirements of different areas, such as in areas with higher heat generation, the flow of the partition flow channel 116 can be increased, and heat dissipation efficiency is improved.
Each of the partition flow passages 116 is connected between the total inlet 1111 and the total outlet 1112, and includes a plurality of branch flow passages 112, which can form a complete fluid circulation system, and the plurality of branch flow passages 112 cooperate together to guide the cooling medium from the total inlet 1111 to the total outlet 1112 and uniformly distribute the cooling medium to the entire partition, while achieving heat dissipation to a specific area.
The inlet manifold 1151 is connected between the main inlet 1111 and each of the partition flow channels 116, the outlet manifold 1152 is connected between the main outlet 1112 and each of the partition flow channels 116, and fluid enters the inlet manifold 1151 from the main inlet 1111 and is distributed to the different partition flow channels 116 in the inlet manifold 1151, flows out from the different partition flow channels 116, merges into the outlet manifold 1152, and flows out from the main outlet 1112.
It will be appreciated that the provision of a plurality of zoned flow passages 116 and a plurality of sub-flow passages 112 within the heat exchange plate 110 may allow for uniform distribution of heat, precise control of flow and maximization of heat exchange efficiency.
The length direction of the heat exchange plate 110 is taken as a first direction X, i.e., 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 a second direction Y, and the first direction X intersects with the second direction Y.
The partition flow channels 116 are provided in a variety of configurations including, but not limited to:
in one example, the fluid flowing direction of the branch flow channel 112 is the second direction Y, and the plurality of partition flow channels 116 are sequentially arranged along the first direction X.
The fluid flow direction at the total inlet 1111 and the total outlet 1112 is the first direction X, the fluid flow direction of the branch flow channels 112 is perpendicular to the fluid flow direction at the total inlet 1111 and the total outlet 1112, the plurality of partition flow channels 116 are sequentially arranged along the first direction X, each partition flow channel 116 is connected between the total inlet 1111 and the total outlet 1112, and comprises a plurality of branch flow channels 112 which are parallel to each other and do not affect each other, so that a complete fluid circulation system can be formed, and the plurality of branch flow channels 112 are mixed at the total inlet 1111 and the total outlet 1112.
In the second example, the fluid flowing direction of the branch flow channel 112 is the first direction X, and the plurality of partition flow channels 116 are sequentially arranged along the second direction Y.
The fluid flow direction at the total inlet 1111 and the total outlet 1112 is the first direction X, the fluid flow direction of the branch flow channels 112 is the same as the fluid flow direction at the total inlet 1111 and the total outlet 1112, the plurality of partition flow channels 116 are sequentially arranged along the second direction Y, each partition flow channel 116 is connected between the total inlet 1111 and the total outlet 1112, and comprises a plurality of branch flow channels 112 which are parallel to each other and do not affect each other, so that a complete fluid circulation system can be formed, and the plurality of branch flow channels 112 are mixed at the total inlet 1111 and the total outlet 1112.
In example three, the fluid flow direction of the branch flow channel 112 is the first direction X, and the plurality of partition flow channels 116 are sequentially arranged around in the second direction Y.
The fluid flow direction at the total inlet 1111 and the total outlet 1112 is the first direction X, the fluid flow direction of the branch flow channels 112 is the same as the fluid flow direction at the total inlet 1111 and the total outlet 1112, the plurality of partition flow channels 116 are sequentially and circumferentially arranged along the second direction Y, each partition flow channel 116 is connected between the total inlet 1111 and the total outlet 1112, and comprises a plurality of branch flow channels 112 which are parallel to each other and do not affect each other, so that a complete fluid circulation system can be formed, and the plurality of branch flow channels 112 are mixed at the total inlet 1111 and the total outlet 1112.
Taking the fluid flow direction of the branch flow channel 112 as the first direction X, a plurality of partition flow channels 116 are sequentially arranged around in the second direction Y as an example.
In some embodiments, as shown in fig. 2-5, a plurality of zoned flow passages 116 are disposed sequentially around.
The fluid flow direction of the branch flow channel 112 is a first direction X, the plurality of U-shaped partition flow channels 116 are sequentially and circumferentially arranged along a second direction Y, the first partition flow channel 116a is located at the outermost periphery of the heat exchange plate 110, and the first partition flow channel 116a, the second partition flow channel 116b and the third partition flow channel 116c are sequentially arranged from outside to inside.
After the fluid enters the inlet collecting pipe 1151 from the main inlet 1111, the fluid enters the first partition runner 116a, the second partition runner 116b and the third partition runner 116c respectively, so that the fluid is split, and the pressure drop is reduced, and the partition runners 116 are mainly distributed according to the distribution area of the heat generated by the battery 1, wherein the first partition runner 116a is responsible for heat exchange of the battery pole core and the pole ear area, and the second partition runner 116b is responsible for heat exchange of the battery central area.
After the fluid is split, converged and re-split in the branch channels 112 of the different partition channels 116, the fluid flows out of the first partition channel 116a, the second partition channel 116b and the third partition channel 116c respectively, and flows out of the total outlet 1112 after being converged in the outlet converging pipe 1152, the U-shaped structure is shorter in path length, smaller in pressure drop and stronger in heat exchange capacity, and the diameters of the branch channels 112 of the different partition channels 116 are set to be sequentially increased so as to balance the pressure drops of the different partition channels 116, specifically, the diameter of the branch channel 112 of the first partition channel 116a is the largest, the diameter of the branch channel 112 of the second partition channel 116b is the second, and the diameter of the branch channel 112 of the third partition channel 116c is the smallest.
It will be appreciated that a plurality of zoned flow passages 116 are arranged in series around one another to achieve uniform heat distribution and stability of fluid flow.
In some embodiments, as shown in fig. 2-5, the branch flow passage 112 comprises a water inlet branch flow passage 1121 and a water return branch flow passage 1122, and the partition flow passage 116 comprises an inlet main branch 117, a plurality of water inlet branch flow passages 1121, a confluence branch passage 118, a plurality of water return branch flow passages 1122 and an outlet main branch 119 which are sequentially connected, wherein an inlet end of the inlet main branch 117 is connected with the main inlet 1111 through an inlet confluence pipe 1151, and an outlet end of the outlet main branch 119 is connected with the main outlet 1112 through an outlet confluence pipe 1152.
The inlet end of the inlet main branch 117 is connected with the main inlet 1111 through an inlet collecting pipe 1151, the inlet main branch 117 serves as a starting point of the partition flow channel 116, the cooling medium entering the inlet collecting pipe 1151 from the main inlet 1111 is distributed to each inlet branch flow channel 1121, a plurality of inlet branch flow channels 1121 are separated from the inlet main branch 117, each inlet branch flow channel 1121 is responsible for conveying the cooling medium to a specific heat dissipation area, and the number and layout of the inlet branch flow channels 1121 are optimally designed according to heat dissipation requirements and heat source distribution.
After the heat exchange is completed, the cooling medium in each of the water inlet branch passages 1121 is collected into the collecting branch passage 118, the collecting branch passage 118 is divided into a plurality of water return branch passages 1122, the cooling medium is conveyed back to the outlet total branch passage 119, the outlet total branch passage 119 serves as a terminal point of the partition flow passage 116, an outlet end of the outlet total branch passage 119 is connected with the total outlet 1112 through an outlet collecting pipe 1152, and the cooling medium from each of the water return branch passages 1121122 is collected and discharged.
It will be appreciated that by subdividing the branch flow channels 112 and constructing the zoned flow channel 116 system, precise control and efficient use of the cooling medium is achieved, which may improve heat dissipation efficiency and uniformity of fluid flow.
In some embodiments, as shown in fig. 2-5, the inlet manifold branches 117 of the plurality of partition runners 116 are disposed adjacent, the inlet manifold branches 1121 of the plurality of partition runners 116 are disposed adjacent, the manifold branches 118 of the plurality of partition runners 116 are disposed adjacent, the return manifold branches 1122 of the plurality of partition runners 116 are disposed adjacent, and the outlet manifold branches 119 of the plurality of partition runners 116 are disposed adjacent.
The adjacent arrangement can maximally utilize the space of the heat exchange plate 110, reduce unnecessary gaps and waste, and effectively cover the heat dissipation area by each partition flow channel 116 through a compact layout, thereby improving the overall heat dissipation performance.
The inlet manifold 117 is disposed adjacent to each other so that the cooling medium entering the inlet manifold 1151 from the manifold inlet 1111 can be rapidly and uniformly distributed into the inlet manifold 117 of each of the partition flow channels 116, and the adjacent arrangement can also reduce the path length and resistance of the fluid during the distribution process and improve the uniformity of flow distribution.
The adjacent arrangement of the water inlet branch channels 1121 can keep similar flow velocity and pressure of the cooling medium when flowing through each heat dissipation area, which is helpful for reducing local overheating or insufficient cooling caused by uneven flow velocity, and after heat exchange is completed, the cooling medium in each water inlet branch channel 1121 is collected into the adjacent confluence branch 118, so that the arrangement can simplify the fluid merging process, reduce vortex generation and improve the stability of fluid flow.
The adjacent arrangement of the return branch channels 1122 allows the cooling medium to smoothly flow back to the outlet total branch 119, reduces the length and complexity of the return path, reduces fluid resistance and energy loss, and the adjacent arrangement of the outlet total branch 119 allows the cooling medium from each return branch channel 1122 to be rapidly and intensively discharged, helping to maintain the overall fluid balance and stability of the system.
It will be appreciated that the manner in which the individual components of the plurality of zoned flow passages 116 are disposed adjacent one another may optimize the fluid flow path and facilitate improved space utilization and thermal management efficiency.
In some embodiments, as shown in fig. 2-5, at least a portion of the partitioned flow channels 116 are provided with a plurality of converging branches 118, with adjacent converging branches 118 of adjacent two partitioned flow channels 116 communicating.
In the partitioned flow channels 116, the cooling medium subjected to heat exchange can be collected to the subsequent flow channels or outlets through a plurality of paths, so that the pressure of fluid can be dispersed, the generation of vortex flow is reduced, and the stability of fluid flow is improved.
At least a portion of the sub-area flow channels 116 are provided with a plurality of converging branches 118, and adjacent converging branches 118 are designed to communicate with each other in two adjacent sub-area flow channels 116 so as to allow a certain degree of converging and redistributing of the cooling medium between adjacent sub-area flow channels 116, and when the heat dissipation requirement of a certain sub-area flow channel 116 is high, the cooling medium in the adjacent sub-area flow channels 116 can be supplemented through the communicating converging branches 118, so that the heat balance of the whole system is maintained.
It will be appreciated that at least a portion of the partitioned flow channels 116 are provided with a plurality of converging branches 118 and that communication between adjacent converging branches 118 is achieved in adjacent partitioned flow channels 116, which helps to optimize the flow path of the cooling medium, reduce thermal resistance and temperature differences, and thereby improve heat dissipation efficiency.
The following describes embodiments of the present application in detail.
In this embodiment, as shown in fig. 2-5, fluid enters the inlet manifold 1151 from the main inlet 1111 and is split in the inlet manifold 1151 into the first, second and third adjacently disposed split runners 116a, 116b and 116c.
As shown in fig. 3, in the first partition flow path 116a, the fluid from the inlet manifold 1151 enters the first inlet header branch path 117a, is split into three inlet branch flow paths 1121 disposed adjacently in the first inlet flow guide section 113a, the fluid flowing out from the inlet branch flow path 1121 near the second partition flow path 116b merges with the fluid in the second partition flow path 116b, enters the second merging branch path 1182, the fluid flowing out from the other two inlet branch flow paths 1121 merges into the first merging branch path 1181, the fluid flowing out of the second merging branch path 1182 enters the outlet branch flow path 1122 near the second partition flow path 116b, the fluid flowing out of the first merging branch path 1 is split into the other two outlet branch flow paths 1122 disposed adjacently, and the fluid flowing through the three outlet branch flow paths 1122 merges into the first outlet header branch path 119a at the first outlet flow guide section 114a, and then merges with the second partition flow path 116b and the third partition flow path 116c in the outlet manifold 1152.
As shown in fig. 4, in the second partition flow path 116b, the fluid from the inlet branch pipe 1151 enters the second inlet header branch path 117b, the fluid branched in the second inlet flow guiding section 113b enters the three inlet branch flow paths 1121 adjacently disposed, the fluid flowing out from the inlet branch flow path 1121 near the first partition flow path 116a merges with the fluid in the first partition flow path 116a, enters the second merging branch path 1182, the fluid flowing out from the other two inlet branch flow paths 1121 merges with the fluid in the third partition flow path 116c, enters the third merging branch path 1183, the fluid flowing out of the second merging branch path 1182 enters the outlet branch flow path 1122 near the first partition flow path 116a, the fluid flowing out of the third merging branch path 1183 is branched in the two outlet branch flow paths 1122 near the third partition flow path 116c, the fluid flowing through the three outlet branch flow paths 1122 merges at the second outlet flow guiding section 114b into the second outlet header branch path 119b, and then merges with the first partition flow path 116a and the third partition flow path 116c in the outlet header 2.
As shown in fig. 5, in the third partition flow path 116c, the fluid from the inlet manifold 1151 enters the third inlet header branch path 117c, is split into three inlet branch flow paths 1121 disposed adjacently in the third inlet manifold section 113c, the fluid flowing out of the inlet branch flow paths 1121 merges with the fluid in the second partition flow path 116b, enters the third merging flow path 1183, the fluid flowing out of the third merging flow path 1183 is split into three outlet branch flow paths 1122 disposed adjacently, and the fluid flowing through the three inlet branch flow paths 1121 merges in the third outlet manifold section 114c, enters the third outlet header branch path 119c, and then merges with the first partition flow path 116a and the second partition flow path 116b in the outlet manifold 1152.
The fluid flowing out of the first, second, and third partition flow passages 116a, 116b, and 116c disposed adjacently merges in the outlet header 1152 and flows out of the total outlet 1112.
In addition, the heat exchange capacity requirement of the first partition runner 116a is larger, the flow rate is improved by reducing the overall pressure drop of the first partition runner 116a, and part of fluid of the first partition runner 116a and part of fluid of the second partition runner 116b are combined to blend the flow rate difference condition of each partition runner 116 caused by different edges, so that the heat exchange uniformity is improved.
The number of the water inlet branch channels 1121 and the water outlet branch channels 1122 of the partition channels 116 is the same, the number of the single-side branch channels 112 of the first partition channel 116a and the second partition channel 116b is three, the number of the single-side branch channels 112 of the third partition channel 116c is four, so as to reduce the flow rate of the third partition channel 116c, and two turbulence blocks can be arranged at the third inlet diversion section 113c and the third outlet diversion section 114c of the third partition channel 116c, so that the flow rates of the four single-side branch channels 112 distributed to the third partition channel 116c are more uniform.
The diameters of the branch passages 112 of the first, second and third partition passages 116a, 116b and 116c are set to be sequentially increased, so that the problem of high pressure drop along the partition passages 116 can be balanced.
The embodiment of the application also provides a battery 1, as shown in fig. 1, which comprises a battery pack 20 and a heat exchange assembly 10, wherein the heat exchange assembly 10 is used for exchanging heat for the battery pack 20.
The battery pack 20 is a core part of the battery 1, and is formed by combining a plurality of battery cells in a serial, parallel or series-parallel mode, the battery pack 20 is responsible for storing and providing electric energy, and the heat exchange assembly 10 is a heat management system specially designed for the battery pack 20 and is used for controlling the temperature of the battery pack 20 in the working process.
As the battery 1 is charged and discharged, a large amount of heat is generated inside the battery 1, and the heat exchange assembly 10 absorbs and takes away the heat generated from the battery pack 20 by a circulating cooling medium, such as water or glycol, to help the battery pack 20 operate in a proper temperature range.
The heat exchange assembly 10 is internally provided with complex cooling flow passages which are closely attached to the surface of the battery pack 20, the cooling flow passages are generally made of high heat conduction materials so as to improve the heat exchange efficiency between the cooling medium and the battery pack 20, the cooling medium circularly flows in the cooling flow passages under the action of a pump, and after the heat generated by the battery pack 20 is absorbed, the temperature of the cooling medium rises, and then the heat is transferred to the external environment through the heat exchanger, so that the temperature of the cooling medium is reduced, and the heat dissipation is realized.
It can be appreciated that the heat exchange assembly 10 can rapidly remove heat generated by the battery pack 20, and by controlling the temperature of the battery pack 20, problems such as aging and capacity degradation of the battery 1 caused by high temperature can be reduced, thereby prolonging the service life of the battery 1.
In some embodiments, as shown in fig. 1 and 7, the battery 1 further includes a case 30 and a pipe joint 40.
The case 30 forms a receiving chamber in which the battery pack 20 and the heat exchange assembly 10 are mounted;
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, and the pipe joint 40 penetrates the front beam 310 of the case 30.
The case 30 is a main structural part of the battery 1, mainly forming a closed receiving chamber for mounting and protecting the battery pack 20 and the heat exchange assembly 10, and the case 30 is generally made of a strong and corrosion-resistant material to improve the stability and safety of the battery 1 in various environments.
The battery pack 20 is installed in the accommodating cavity of the box 30, and is a main energy source of the battery 1, the battery pack 20 is composed of a plurality of battery cells, and is connected in series, parallel or series-parallel mode to meet specific voltage and capacity requirements, and the heat exchange assembly 10 is also installed in the accommodating cavity of the box 30 and is used for performing heat management on the battery pack 20, and mainly absorbing and taking away heat generated by the battery pack 20 through circulating cooling medium to help the battery pack 20 work in a proper temperature range.
As shown in fig. 6, the heat exchange assembly 10 includes a heat exchange plate 110 and a base plate 120, the heat exchange plate 110 having a cooling flow path is closely adhered to the surface of the battery pack 20 to maximize heat exchange efficiency, and a pipe joint 40 is a key component connecting the heat exchange assembly 10 with an external cooling system or heat exchanger, and the pipe joint 40 is connected with a total inlet 1111 and a total outlet 1112 of the heat exchange assembly 10, respectively, so that a cooling medium can circulate in the heat exchange assembly 10 and heat exchange with the external system is achieved.
The pipe joint 40 is made of a metal material to improve strength and corrosion resistance thereof, and the pipe joint 40 penetrates the front beam 310 of the case 30 to facilitate connection and maintenance of the cooling system.
As shown in the drawings, the pipe joint 40 includes a brazing pillar 410, a adapting round pipe 420 and a sealing installation block 430, wherein the brazing pillar 410 and the heat exchange plate 110 are integrally formed by brazing, the heat absorption capacity of a smaller volume can meet the requirement of uniform temperature when the heat exchange plate 110 is brazed, the welding quality of the whole plate is improved, in addition, the adapting round pipe 420 can be respectively connected with the brazing pillar 410 and the sealing installation block 430 in a flame welding or high-frequency welding mode, and the like, and finally the installation block is installed on the front beam 310 of the box body 30 through a threaded connector 440, and meanwhile, a sealing ring 450 is arranged in the middle to ensure the air tightness of the whole bag.
It will be appreciated that by integrating the components of the housing 30, the battery pack 20, the heat exchange assembly 10, and the tube fitting 40, an efficient, reliable and easy to maintain battery system may be formed.
The embodiment of the application also provides an electric device.
The electricity utilization device comprises a battery 1, the battery 1 being arranged to provide the electricity utilization device with electrical energy.
The power utilization device uses the integrated battery 1 as a source of energy, and the power utilization device is a broad concept, and can be, but not limited to, a mobile phone, a tablet, a notebook computer, an electric automobile, a ship, etc., ranging from simple portable electronic equipment to complex household appliances, industrial equipment, etc.
The battery 1 is one of the core components of the power-using device, responsible for converting chemical energy into electrical energy, providing a continuous and stable power supply for the device, and the battery 1 has a higher portability than a fixed power source, so that the power-using device can operate independently without an external power source.
It will be appreciated that the powered device is powered by the integrated battery 1 as a source of energy to drive its internal operating mechanism or to perform a specific function.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present application, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
In the description of the application, a "first feature" or "second feature" may include one or more of such features.
In the description of the present application, "plurality" means two or more.
In the description of the application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411411794.0A CN119812552B (en) | 2024-10-10 | 2024-10-10 | Heat exchange assembly, battery and power utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411411794.0A CN119812552B (en) | 2024-10-10 | 2024-10-10 | Heat exchange assembly, battery and power utilization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119812552A CN119812552A (en) | 2025-04-11 |
| CN119812552B true CN119812552B (en) | 2026-04-07 |
Family
ID=95277788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411411794.0A Active CN119812552B (en) | 2024-10-10 | 2024-10-10 | Heat exchange assembly, battery and power utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119812552B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207868339U (en) * | 2017-12-27 | 2018-09-14 | 威马智慧出行科技（上海）有限公司 | A kind of jet stream pipe fitting |
| CN218002287U (en) * | 2022-06-30 | 2022-12-09 | 比亚迪股份有限公司 | Direct cooling plate of heat exchanger, heat exchanger and power battery pack |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000346568A (en) * | 1999-05-31 | 2000-12-15 | Mitsubishi Heavy Ind Ltd | Heat exchanger |
| JP2016157578A (en) * | 2015-02-24 | 2016-09-01 | ダイキョーニシカワ株式会社 | Heating element cooling structure |
| CN205024306U (en) * | 2015-09-28 | 2016-02-10 | 长春工程学院 | Be provided with cooling system's high velocity oxy -fuel spray spray gun |
| CN111351388A (en) * | 2020-04-10 | 2020-06-30 | 南京同诚节能环保装备研究院有限公司 | Heat exchange plate sheet of plate type condenser |
| CN111883875B (en) * | 2020-07-13 | 2021-09-21 | 珠海格力电器股份有限公司 | Heat exchange plate with flow guide fins and battery PACK box |
| CN216015495U (en) * | 2021-08-31 | 2022-03-11 | 欣旺达电动汽车电池有限公司 | Heat dissipation plate, heat dissipation device and battery pack |
| CN114976364B (en) * | 2022-07-05 | 2023-09-26 | 翠鸟新能源科技(南通)有限公司 | energy storage system |
| CN218783090U (en) * | 2022-10-24 | 2023-03-31 | 阳光电源股份有限公司 | Energy storage battery |
| WO2024087017A1 (en) * | 2022-10-25 | 2024-05-02 | 扬州纳力新材料科技有限公司 | Liquid cooling plate for pouch battery, and battery module |
| WO2024108814A1 (en) * | 2022-11-22 | 2024-05-30 | 浙江银轮机械股份有限公司 | Battery heat exchange integrated structure and heat management system |
| CN218827445U (en) * | 2022-11-30 | 2023-04-07 | 比亚迪股份有限公司 | Heat exchange plate, power battery package and vehicle |
| CN118293720A (en) * | 2023-01-05 | 2024-07-05 | 洛阳瑞昌环境工程有限公司 | Heat exchange plate group and plate heat exchanger |
| CN116505124A (en) * | 2023-04-13 | 2023-07-28 | 芜湖众梦电子科技有限公司 | Heat dissipation device and heat dissipation method for new energy automobile battery |
| CN220172227U (en) * | 2023-07-03 | 2023-12-12 | 比亚迪股份有限公司 | Heat exchange plate assembly, battery pack and vehicle |
| CN220731630U (en) * | 2023-08-14 | 2024-04-05 | 蔚来电池科技(安徽)有限公司 | Heat exchange plate and battery pack including the same |
| CN220984641U (en) * | 2023-09-22 | 2024-05-17 | 孚能科技(赣州)股份有限公司 | Quick liquid cooling liquid heat temperature equalizing system and battery pack |
| CN221596559U (en) * | 2023-10-31 | 2024-08-23 | 宁德时代新能源科技股份有限公司 | Batteries and electrical devices |
-
2024
- 2024-10-10 CN CN202411411794.0A patent/CN119812552B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207868339U (en) * | 2017-12-27 | 2018-09-14 | 威马智慧出行科技（上海）有限公司 | A kind of jet stream pipe fitting |
| CN218002287U (en) * | 2022-06-30 | 2022-12-09 | 比亚迪股份有限公司 | Direct cooling plate of heat exchanger, heat exchanger and power battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119812552A (en) | 2025-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2025511983A (en) | Direct cooling plates, heat exchangers, power battery packs and vehicles | |
| CN115498327A (en) | Cooling device and battery module | |
| EP4220823B1 (en) | Tray and battery pack having same | |
| EP4220828B1 (en) | Battery pack | |
| CN220627923U (en) | A cooling component and battery pack | |
| CN209329006U (en) | Cell installation structure, energy storage module and vehicle | |
| JP7588740B1 (en) | Liquid cooling plate and battery pack | |
| KR20220105840A (en) | Battery cooling apparatus | |
| CN221827960U (en) | Heat exchange assembly, battery pack and power system | |
| CN219937170U (en) | Battery pack cooling components, power battery packs and vehicles | |
| CN117219801A (en) | Bipolar plate and fuel cell | |
| CN119812552B (en) | Heat exchange assembly, battery and power utilization device | |
| CN109638311B (en) | A fuel cell deflector | |
| CN118943573A (en) | Heat exchange plate and battery module | |
| CN212209611U (en) | Battery packs and vehicles for vehicles | |
| CN120076277B (en) | Energy storage converter, energy storage system and electric equipment | |
| CN118281426B (en) | Shunt structure and battery pack with same | |
| CN222463099U (en) | Liquid cooling plate and battery pack | |
| CN222338358U (en) | A battery pack and cooling system | |
| CN222851551U (en) | Immersed liquid cooling battery pack | |
| CN224204158U (en) | A liquid cooling plate and battery pack | |
| CN222338365U (en) | Heat exchange components and battery packs | |
| CN223927423U (en) | Flow guide assembly, battery cell module and battery box | |
| CN224005951U (en) | Battery device and electricity utilization device | |
| CN223598805U (en) | A cold plate and battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |