CN216529125U - Box, battery package and electric vehicle - Google Patents
Box, battery package and electric vehicle Download PDFInfo
- Publication number
- CN216529125U CN216529125U CN202122981955.8U CN202122981955U CN216529125U CN 216529125 U CN216529125 U CN 216529125U CN 202122981955 U CN202122981955 U CN 202122981955U CN 216529125 U CN216529125 U CN 216529125U
- Authority
- CN
- China
- Prior art keywords
- battery
- cavity wall
- battery module
- inner cavity
- battery pack
- 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
Images
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)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses box, battery package and electric vehicle. The box body comprises a box body, wherein the box body is provided with an outer cavity wall and an inner cavity wall; the outer cavity wall is connected with an inlet pipeline and an outlet pipeline; a first gap part communicated with the inlet pipeline is formed between the outer cavity wall and the inner cavity wall, and a second gap part communicated with the outlet pipeline is formed between the outer cavity wall and the inner cavity wall; an accommodating cavity is formed on the inner side of the inner cavity wall, the accommodating cavity is configured to accommodate a battery, and the accommodating cavity is communicated with the first gap part and the second gap part; the insulating cooling liquid flows into the first gap part through the inlet pipeline, flows into the accommodating cavity, and finally flows out of the box body through the second gap part and the outlet pipeline.
Description
Technical Field
The application relates to the technical field of energy storage equipment, and more particularly relates to a box, a battery pack and an electric vehicle.
Background
With the increasing promotion of new energy automobiles in China, the pure electric automobile with the characteristics of green and environmental protection becomes the inevitable trend of the development of the automobile industry in the future, and the pure electric automobile gradually replaces the traditional fuel passenger car to become a common daily travel vehicle. The power source of the electric automobile is a lithium ion battery, and as an important component of the electric automobile, the improvement of various performances of the lithium ion battery is always a key point of attention in the industry. The lithium ion battery provides electric energy by violent chemical reaction in the lithium ion battery during work, a large amount of heat can be generated in the charging and discharging process, the temperature of the battery is increased, the safety, the charging and discharging capacity, the efficiency, the cycle life and other performances of the battery are directly influenced by the temperature of the battery, and the working performance of the whole vehicle is further influenced. In addition, the optimum operating temperature range of the lithium ion battery is narrow, and if the optimum operating temperature range is exceeded, the basic performance of the battery is obviously reduced, so that the service life and the safety of the battery are influenced.
In the prior art, in order to provide a battery with a relatively balanced working environment, a liquid cooling plate is often used, for example, the liquid cooling plate is arranged at the bottom or the top of a battery pack box body; the liquid cooling plate has low thermal efficiency, and the liquid cooling plate has complex processing technology, heavy weight and high cost. Therefore, there is a need to provide a new solution to the above-mentioned technical problems caused by the use of liquid cooling plates.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a box, battery package and electric vehicle's new technical scheme to avoid using the battery package heavier, the higher technical problem of cost that liquid cold plate brought.
According to a first aspect of the present application, there is provided a case comprising:
the box body is provided with an outer cavity wall and an inner cavity wall;
the outer cavity wall is connected with an inlet pipeline and an outlet pipeline; a first gap part communicated with the inlet pipeline is formed between the outer cavity wall and the inner cavity wall, and a second gap part communicated with the outlet pipeline is formed between the outer cavity wall and the inner cavity wall; an accommodating cavity is formed on the inner side of the inner cavity wall, the accommodating cavity is configured to accommodate a battery, and the accommodating cavity is communicated with the first gap part and the second gap part;
the insulating cooling liquid flows into the first gap part through the inlet pipeline, flows into the accommodating cavity, and finally flows out of the box body through the second gap part and the outlet pipeline.
Optionally, the outer lumen wall has a first thickness and the inner lumen wall has a second thickness, the first thickness being greater than the second thickness.
Optionally, the first side of the inner chamber wall has a first level and the second side of the inner chamber wall has a second level, the first level being greater than the second level.
According to a second aspect of the present application, there is provided a battery pack, the battery pack comprising the case body according to the first aspect, wherein a battery is provided in the accommodating cavity of the case body.
Optionally, the battery is a first battery module, a first branch pipeline for communicating the first gap portion with the first battery module is arranged between the first side of the inner cavity wall and the first side of the first battery module, a second branch pipeline for communicating the first battery module with the second gap portion is arranged between the second side of the inner cavity wall and the second side of the first battery module, and the insulating cooling liquid flows into the first gap portion through the inlet pipeline, flows into the first battery module through the first branch pipeline, and finally flows out of the battery pack through the second branch pipeline, the second gap portion and the outlet pipeline.
Optionally, the first gap portion is provided with a first flow guide pipe, and the second gap portion is provided with a second flow guide pipe;
the first guide pipe is communicated with the first branch pipeline, and the second guide pipe is communicated with the second branch pipeline.
Optionally, the first branch duct has an effective area allowing the flow of the insulating coolant, the effective area having at least a first preset value and a second preset value.
Optionally, sealant is filled between the first side of the inner cavity wall and the first branch pipe, between the first branch pipe and the first battery module, between the first battery module and the second branch pipe, and between the second branch pipe and the second side of the inner cavity wall.
Optionally, the battery is a second battery module, a first through hole is formed in the first side of the inner cavity wall, a second through hole is formed in the second side of the inner cavity wall, the insulating cooling liquid flows into the first gap portion through the inlet pipeline, flows into the accommodating cavity through the first through hole, and finally flows out of the battery pack through the second through hole, the second gap portion and the outlet pipeline.
Optionally, a cooling liquid cover plate is connected to the inner cavity wall.
Optionally, the inner cavity wall is provided with a support beam near the inner side wall of the accommodating cavity, and the cooling liquid cover plate is connected to the support beam.
According to a fourth aspect of the present application, there is provided an electric vehicle including the battery pack as set forth in the second or third aspect.
The technical scheme adopted by the application can achieve the following beneficial effects:
in the battery pack provided by the embodiment of the application, the insulating cooling liquid is directly introduced into the accommodating cavity of the battery pack box body, and the insulating cooling liquid is directly contacted with the outer surface of the battery module or directly contacted with the battery core in the battery module, so that the heat conduction efficiency is higher, and the energy of the insulating cooling liquid can be more fully utilized; and the use of a liquid cooling plate can be omitted, and the technical effects of reducing the weight and the cost of the battery pack are achieved.
Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural diagram of a battery pack according to an embodiment of the present application;
fig. 2 is a schematic structural diagram ii of a battery pack according to an embodiment of the present application;
fig. 3 is a schematic structural diagram three of a battery pack according to an embodiment of the present application;
fig. 4 is a schematic structural diagram four of a battery pack according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a battery pack according to an embodiment of the present application.
Description of reference numerals:
1. a tank body; 101. an outer chamber wall; 102. the inner cavity wall; 103. a first gap portion; 104. a second gap portion; 105. a first through hole; 106. a second through hole; 2. an inlet duct; 3. an outlet conduit; 4. a first battery module; 401. an electric core; 5. a first branch conduit; 6. a second branch conduit; 7. a second battery module; 8. a first draft tube; 9. a second draft tube; 10. a coolant cover plate; 11. and supporting the beam.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Referring to fig. 1-5, according to one embodiment of the present application, there is provided a tank comprising a tank body 1, said tank body 1 having an outer chamber wall 101 and an inner chamber wall 102; the outer cavity wall 101 is connected with an inlet pipeline 2 and an outlet pipeline 3; a first gap part 103 communicated with the inlet pipeline 2 is formed between the outer cavity wall 101 and the inner cavity wall 102, and a second gap part 104 communicated with the outlet pipeline 3 is formed between the outer cavity wall 101 and the inner cavity wall 102; an accommodating cavity is formed on the inner side of the inner cavity wall 102, and is configured to accommodate a battery, and specifically, a single battery or a battery module can be accommodated in the accommodating cavity; the accommodating cavity is communicated with the first gap part 103 and the second gap part 104; the insulating coolant flows into the first gap 103 through the inlet pipe 2, flows into the accommodating cavity, and finally flows out of the tank body 1 through the second gap 104 and the outlet pipe 3.
When the box that this application embodiment provided is applied to in the battery package, set up the battery module in the cavity that holds in this case body 1, insulating coolant liquid directly lets in from inlet pipe 2 via first clearance portion 103 and holds the cavity and cool down or heat up the battery module in, the heat conduction efficiency of insulating coolant liquid is higher like this to need not to use liquid cold drawing, battery package weight increase and the higher problem of cost that liquid cold drawing brought have been avoided. After the use of the insulating cooling liquid, the insulating cooling liquid flows out of the tank body 1 through the second gap portion 104 and the outlet pipe 3, thereby forming the entire insulating cooling liquid circulation system.
In one embodiment, the outer chamber wall 101 has a first thickness and the inner chamber wall 102 has a second thickness, the first thickness being greater than the second thickness.
In this specific example, the thickness of the outer cavity wall 101 is greater than the thickness of the inner cavity wall 102, so that the strength of the outer cavity wall 101 is greater, and the tank body 1 can be prevented from being deformed or damaged at the outer side in a collision to cause leakage of the insulating coolant. While the outer chamber wall 101 is thickened, the inner chamber wall 102 can be thinned, so that the overall weight of the box body is not increased.
In one embodiment, a first side of the interior chamber wall 102 has a first level and a second side of the interior chamber wall 102 has a second level, the first level being greater than the second level.
In this specific example, the first side of the inner cavity wall 102 and the second side of the inner cavity wall 102 have a height difference in the horizontal direction, which can promote the insulating cooling liquid to flow from the first side of the inner cavity wall 102 to the second side of the inner cavity wall 102, so as to promote the flow of the insulating cooling liquid and make the flow of the insulating cooling liquid smoother.
According to another embodiment of the present application, there is provided a battery pack. The battery pack comprises the box body, and a battery is arranged in the accommodating cavity of the box body 1.
More specifically, referring to fig. 1-2, the battery includes a first battery module 4, a first branch conduit 5 communicating a first gap 103 with the first battery module 4 is disposed between a first side of the inner cavity wall 102 and a first side of the first battery module 4, a second branch conduit 6 communicating the first battery module 4 with a second gap 104 is disposed between a second side of the inner cavity wall 102 and a second side of the first battery module 4, and the insulating cooling liquid flows into the first gap 103 through the inlet conduit 2, flows into the first battery module 4 through the first branch conduit 5, and finally flows out of the battery pack through the second branch conduit 6, the second gap 104, and the outlet conduit 3.
In the battery pack provided in this embodiment, the accommodating cavity of the box body 1 is provided with the first battery module 4, and the first battery module 4 may be, for example, a blade battery module. The insulating coolant enters the first gap portion 103 from the inlet duct 2, and then enters the first battery module 4 through the first branch duct 5 to cool the first battery module 4. Be provided with a plurality of electric cores 401 in the first battery module 4, a plurality of electric cores 401 are connected through series connection and/or parallelly connected mode, and electric core 401 can release a large amount of heats when charging and discharging, and if these heats can not in time release or shift, can lead to the high temperature of electric core to influence the life cycle of electric core. This embodiment adopts the cooling method that insulating coolant liquid immerges in first battery module 4, and after insulating coolant liquid entered into first battery module 4, can fully contact with the surface of electric core 401, when electric core 401's temperature was too high, microthermal insulating coolant liquid was through the mode of convection current and heat transfer, with the surface temperature reduction of electric core, and the inside heat of electric core can dispel the heat to the surface conduction and through insulating coolant liquid to reach the purpose that whole electric core temperature reduces. The embodiment can effectively ensure the heat transfer efficiency of each battery cell 401, and the temperature consistency among the battery cells 401 is very high. After passing through the first battery module 4, the insulating coolant is collected into the second gap portion 104 via the second branch pipe 6, and finally flows out of the battery pack via the outlet pipe 3, thereby forming the entire liquid cooling circulation system. On the other hand, if the battery cell is in a low-temperature working condition and needs to be heated, the battery cell can be heated integrally by heating the insulating cooling liquid and by the insulating cooling liquid with higher temperature.
Referring to fig. 4, in one embodiment, the first gap portion 103 is provided with a first flow conduit 8, and the second gap portion 104 is provided with a second flow conduit 9; the first flow guide pipe 8 is communicated with the first branch pipeline 5, and the second flow guide pipe 9 is communicated with the second branch pipeline 6.
In this specific example, the insulating coolant enters the first gap portion 103 through the inlet duct 2, further enters the first flow duct 8, and then flows from the first flow duct 8 into the first branch duct 5 communicating with the first flow duct 8; after flowing through the first battery module 4, the insulating coolant is converged into the second flow guide pipe 9 communicated with the second branch pipe 6 through the second branch pipe 6, and finally flows out of the battery pack through the outlet pipe 3. The arrangement of the first flow guide pipe 8 and the second flow guide pipe 9 is beneficial to guiding the flow of the insulating cooling liquid, so that the flow of the insulating cooling liquid is smoother.
More specifically, a through hole for communicating with the first branch pipe 5 is formed in the side wall of the first flow guide pipe 8, and a through hole for communicating with the second branch pipe 6 is formed in the side wall of the second flow guide pipe 9. The first guide pipe 8 and the second guide pipe 9 are arranged on the inner side of the outer cavity wall 101, so that the situation that the insulating cooling liquid leaks due to deformation or damage of the first guide pipe 8 and the second guide pipe 9 when the outer side of the box body 1 is collided can be avoided.
In one embodiment, said first branch duct 5 has an effective area allowing the flow of insulating cooling fluid, said effective area having at least a first preset value and a second preset value.
In this specific example, the flow rate of the insulating cooling liquid allowed to flow by the first branch pipe 5 is not fixed, but can be adjusted to reasonably distribute the flow rate of the insulating cooling liquid according to actual needs, so as to improve the utilization efficiency and the heat transfer efficiency of the insulating cooling liquid. Further specifically, a valve may be provided on the first branch pipe 5 to control the flow amount.
In one embodiment, a sealant is filled between the first side of the inner cavity wall 102 and the first branch duct 5, between the first branch duct 5 and the first battery module 4, between the first battery module 4 and the second branch duct 6, and between the second branch duct 6 and the second side of the inner cavity wall 102.
In this specific example, the insulating coolant flows into the first battery module 4 through the first branch duct 5, and flows out of the first battery module 4 through the second branch duct 6; it will be appreciated that through holes are provided on both the first and second sides of the inner chamber wall 102, one end of the first branch conduit 5 being connected to the through hole on the first side and one end of the second branch conduit 6 being connected to the through hole on the second side. The joints of the first branch pipe 5 and the inner cavity wall 102 and the first branch pipe 5 and the first battery module 4, and the joints of the second branch pipe 6 and the inner cavity wall 102 and the joints of the second branch pipe 6 and the first battery module 4 are bonded and sealed by sealant, so that the insulating cooling liquid is prevented from leaking into the accommodating cavity.
In another embodiment, referring to fig. 3, the battery includes a second battery module 7, a first through hole 105 is formed on a first side of the inner cavity wall 102, a second through hole 106 is formed on a second side of the inner cavity wall 102, and the insulating cooling liquid flows into the first gap portion 103 through the inlet pipe 2, flows into the accommodating cavity through the first through hole 105, and finally flows out of the battery pack through the second through hole 106, the second gap portion 104, and the outlet pipe 3.
In the battery pack provided by this embodiment, a second battery module 7 is disposed in the accommodating cavity of the box body 1, and the second battery module 7 may be, for example, a ternary battery module or a TCP battery module. The insulating cooling liquid enters the first gap portion 103 from the inlet pipe 2 and then flows into the accommodating cavity through the first through hole 105, and the insulating cooling liquid contacts with the outer surface of the second battery module 7 in the accommodating cavity to cool the second battery module 7. This embodiment adopts insulating coolant liquid to soak and holds the cavity and carry out the cooling method that cools down to the surface of second battery module 7, is provided with a plurality of electric cores in the second battery module 7, and electric core can release a large amount of heats when charging and discharging, and these heats can be followed electric core and transmitted the surface of second battery module 7 and then cooled down the heat dissipation through insulating coolant liquid. After passing through the outer surface of the second battery module 7, the insulating coolant is introduced into the second gap portion 104 through the second through hole 106, and finally flows out of the battery pack through the outlet pipe 3, thereby forming the entire liquid cooling circulation system. On the other hand, if the battery cell is in a low-temperature working condition and needs to be heated, the battery cell can be heated integrally by heating the insulating cooling liquid and by the insulating cooling liquid with higher temperature.
In above-mentioned battery package, through the electric core that sets up in the insulating coolant liquid direct contact battery module, perhaps through the surface of insulating coolant liquid contact battery module, cool off or heat the battery module from this, the area of contact of insulating coolant liquid and battery module is great, has effectively improved heat-conduction efficiency, make full use of the energy of insulating coolant liquid. Compared with the prior art, the liquid cooling plate and a plurality of liquid cooling pipelines are reduced, and the effects of reducing weight and cost are achieved. More specifically, the inlet pipe 2 and the outlet pipe 3 may be connected to the vehicle pump and the motor unit to form a loop of the liquid cooling circulation system.
Referring to fig. 5, in one embodiment, a coolant cover plate 10 is attached to the inner chamber wall 102.
In this specific example, since the insulating cooling liquid is filled in the accommodating cavity without entering the second battery module 7 under the condition that the second battery module 7 is disposed in the accommodating cavity, when the battery pack shakes, in order to avoid the influence of the fluctuation of the insulating cooling liquid around the second battery module 7 on the strength of the battery module, the cooling liquid cover plate 10 is connected to the inner cavity wall 102, so that the stability of the insulating cooling liquid can be improved.
Referring to fig. 5, in one embodiment, the inner chamber wall 102 is provided with support beams 11 near the inner side walls of the receiving chamber, and the coolant cover plate 10 is connected to the support beams 11.
In this specific example, the coolant cover plate 10 is fixed to the support beams 11 by adhesive, and two, three, or four support beams 11 may be provided to face each other.
Referring to fig. 1-2, in the case that first battery modules 4 are arranged in the accommodating cavity, at least two first battery modules 4 are arranged, and a first distance is formed between two adjacent first battery modules 4;
referring to fig. 3, in the case that the second battery modules 7 are arranged in the accommodating cavity, at least two second battery modules 7 are arranged, and a second distance is formed between two adjacent second battery modules 7;
the second pitch is greater than the first pitch.
Under the first condition, when holding the intracavity and set up first battery module 4, first battery module 4 is for example blade battery module, and first battery module 4 arranges comparatively closely in holding the cavity, and the interval between two adjacent first battery modules 4 is very little, and every first battery module 4 all corresponds and connects a first branch pipeline 5 and a second branch pipeline 6 to the length of first battery module 4 is longer, only arranges a first battery module 4 in holding the cavity. The space in the accommodation cavity except for the first battery module 4 is very limited, so that the insulating cooling liquid is suitable for cooling or heating the electric core in the first battery module 4. Furthermore, the flow rate of each first branch pipe 5 can be adjusted to uniformly distribute the insulating cooling liquid in each first battery module 4 as much as possible, so that the purpose of uniform heat conduction of the plurality of first battery modules 4 is achieved.
Under the second condition, when holding the intracavity and set up second battery module 7, second battery module 7 is for example ternary battery module or TCP battery module, and second battery module 7 arranges comparatively sparsely in holding the cavity, and the interval between two adjacent second battery modules 7 is great, and second battery module 7 can be in holding the cavity and arrange two. The space in the accommodating cavity except for the second battery module 7 is large, so that under the condition, the insulating cooling liquid can be introduced into the accommodating cavity through the outer surface contacting the second battery module 7 to cool or heat the battery core.
According to still another embodiment of the present application, there is provided an electric vehicle including the battery pack as described above.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (12)
1. A box, characterized by comprising:
a tank body (1), the tank body (1) having an outer chamber wall (101) and an inner chamber wall (102);
the outer cavity wall (101) is connected with an inlet pipeline (2) and an outlet pipeline (3); a first gap part (103) communicated with the inlet pipeline (2) is formed between the outer cavity wall (101) and the inner cavity wall (102), and a second gap part (104) communicated with the outlet pipeline (3) is formed between the outer cavity wall (101) and the inner cavity wall (102); an accommodating cavity is formed on the inner side of the inner cavity wall (102), the accommodating cavity is configured to accommodate a battery, and the accommodating cavity is communicated with the first gap part (103) and the second gap part (104);
the insulating cooling liquid flows into the first gap part (103) through the inlet pipeline (2), flows into the accommodating cavity, and finally flows out of the box body (1) through the second gap part (104) and the outlet pipeline (3).
2. The tank according to claim 1, characterized in that said outer chamber wall (101) has a first thickness and said inner chamber wall (102) has a second thickness, said first thickness being greater than said second thickness.
3. A cabinet as claimed in claim 1, wherein a first side of the inner chamber wall (102) has a first level and a second side of the inner chamber wall (102) has a second level, the first level being greater than the second level.
4. A battery pack, characterized in that it comprises a case according to any one of claims 1 to 3, the housing cavity of the case body (1) being provided with a battery.
5. Battery pack according to claim 4, wherein the battery comprises a first battery module (4), a first branch pipeline (5) for communicating the first gap part (103) with the first battery module (4) is arranged between the first side of the inner cavity wall (102) and the first side of the first battery module (4), and a second branch pipeline (6) for communicating the first battery module (4) with the second gap part (104) is arranged between the second side of the inner cavity wall (102) and the second side of the first battery module (4), and insulating cooling liquid flows into the first gap part (103) through the inlet pipeline (2), flows into the first battery module (4) through the first branch pipeline (5), and finally flows out of the battery pack through the second branch pipeline (6), the second gap part (104) and the outlet pipeline (3).
6. The battery pack according to claim 5, wherein the first gap portion (103) is provided with a first flow duct (8), and the second gap portion (104) is provided with a second flow duct (9);
the first guide pipe (8) is communicated with the first branch pipeline (5), and the second guide pipe (9) is communicated with the second branch pipeline (6).
7. Battery pack according to claim 5, characterized in that the first branch duct (5) has an effective area allowing the flow of insulating cooling fluid, said effective area having at least a first and a second preset value.
8. The battery pack according to claim 5, wherein a sealant is filled between the first side of the inner cavity wall (102) and the first branch conduit (5), between the first branch conduit (5) and the first battery module (4), between the first battery module (4) and the second branch conduit (6), and between the second branch conduit (6) and the second side of the inner cavity wall (102).
9. The battery pack according to claim 4, wherein the battery comprises a second battery module (7), a first through hole (105) is formed in a first side of the inner cavity wall (102), a second through hole (106) is formed in a second side of the inner cavity wall (102), and the insulating cooling liquid flows into the first gap portion (103) through the inlet pipe (2), flows into the accommodating cavity through the first through hole (105), and finally flows out of the battery pack through the second through hole (106), the second gap portion (104) and the outlet pipe (3).
10. A battery pack according to claim 9, wherein a coolant cover plate (10) is attached to the inner cavity wall (102).
11. A battery pack, as claimed in claim 10, characterized in that said inner cavity wall (102) is provided with support beams (11) close to the inner side walls of said housing cavity, said coolant cover plate (10) being connected at said support beams (11).
12. An electric vehicle characterized in that the electric vehicle comprises the battery pack according to any one of claims 4 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122981955.8U CN216529125U (en) | 2021-11-30 | 2021-11-30 | Box, battery package and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122981955.8U CN216529125U (en) | 2021-11-30 | 2021-11-30 | Box, battery package and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216529125U true CN216529125U (en) | 2022-05-13 |
Family
ID=81465796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122981955.8U Active CN216529125U (en) | 2021-11-30 | 2021-11-30 | Box, battery package and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216529125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116845425A (en) * | 2023-08-31 | 2023-10-03 | 南方电网调峰调频(广东)储能科技有限公司 | Liquid cooling battery pack and battery energy storage system |
-
2021
- 2021-11-30 CN CN202122981955.8U patent/CN216529125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116845425A (en) * | 2023-08-31 | 2023-10-03 | 南方电网调峰调频(广东)储能科技有限公司 | Liquid cooling battery pack and battery energy storage system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102544567B (en) | Power battery module with liquid cooling system | |
| CN108448198B (en) | Split type battery thermal management system, method of using the same, and rapid charging system | |
| CN111934053B (en) | Splicing type battery module for electric automobile and working method thereof | |
| CN112886093A (en) | Active control type full-immersion liquid cooling power battery thermal management system | |
| CN109004293B (en) | Size cycle control method for thermal management module of power battery liquid cooling system | |
| CN216529125U (en) | Box, battery package and electric vehicle | |
| CN116130834A (en) | Immersed liquid cooling energy storage battery pack structure | |
| CN210379345U (en) | Liquid cooling system of power battery | |
| CN106025427B (en) | Temperature adjusting system and method for battery pack | |
| CN214625171U (en) | Novel high-density energy storage battery thermal management liquid cooling system based on fluorinated liquid | |
| CN102751546A (en) | Power battery having temperature control device | |
| JP3215572U (en) | High power battery or capacitor module | |
| CN112582703B (en) | Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate | |
| US20190221900A1 (en) | High power battery/capacitor module | |
| CN210692720U (en) | Immersed liquid-cooled battery pack | |
| CN210668622U (en) | Electric automobile battery with control by temperature change function | |
| CN110544807A (en) | Liquid cooling system of power battery and control method thereof | |
| CN215578708U (en) | Battery structure and electric automobile | |
| CN212934737U (en) | PHEV power battery system with water cooling device | |
| CN102163759B (en) | Battery pack | |
| CN114464923A (en) | Quick-charging type lithium ion battery module structure | |
| CN216750076U (en) | All-in-one controller of integrated storage battery pack | |
| CN216413153U (en) | Integrated liquid cooling aluminum alloy energy storage battery box | |
| CN220420695U (en) | Battery pack, battery pack and electric equipment | |
| CN217134477U (en) | Battery package box, battery package and electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: No. 3009, BYD Road, Pingshan District, Shenzhen, Guangdong 518118 Patentee after: BYD Co.,Ltd. Patentee after: Shaoxing Fudi Battery Co.,Ltd. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: BYD Co.,Ltd. |
|
| TR01 | Transfer of patent right |