CN219642947U - Temperature equalizing device of battery module and battery module - Google Patents
Temperature equalizing device of battery module and battery module Download PDFInfo
- Publication number
- CN219642947U CN219642947U CN202320506118.6U CN202320506118U CN219642947U CN 219642947 U CN219642947 U CN 219642947U CN 202320506118 U CN202320506118 U CN 202320506118U CN 219642947 U CN219642947 U CN 219642947U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- flow
- battery module
- equalizing device
- temperature equalizing
- 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
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 6
- 230000036961 partial effect Effects 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Abstract
The utility model discloses a battery module and a temperature equalizing device thereof. The temperature equalizing device comprises a heat exchange pipeline, the heat exchange pipeline comprises a plurality of second flow channels, an even number of third flow channels and a plurality of fourth flow channels, the even number of third flow channels are sequentially arranged at intervals and in parallel along a first direction, an accommodating space for accommodating batteries is formed between two adjacent third flow channels, each second flow channel is communicated with first ends of two selected third flow channels, each fourth flow channel is communicated with second ends of two selected third flow channels, and the second flow channels, the third flow channels and the fourth flow channels are sequentially communicated and form a channel for continuous circulation of a heat exchange medium. The utility model ensures that the battery module has better temperature uniformity, and simultaneously reduces the energy consumption of the whole temperature uniformity device.
Description
Technical Field
The utility model particularly relates to a temperature equalizing device of a battery module and the battery module, and belongs to the technical field of battery modules.
Background
The vehicle-mounted battery is the most important part of the electric vehicle, and the battery is assembled by a plurality of battery modules, so the stability of a single battery module determines the performance of the electric vehicle. The battery module often generates more heat during operation, and if the heat is accumulated, the heat will have an adverse effect on the normal operation of the battery module, so that the heat dissipation of the battery module is required. Taking a cylindrical battery module as an example, a heat dissipation mode which is relatively commonly used in the prior art is to fix two cylindrical batteries between two heat conducting plates to form a unit, and a certain gap is reserved between each unit to form an air channel, so that heat dissipation of the battery module is realized in an air cooling mode. However, when the above-mentioned method is adopted, since a certain gap is reserved between each unit, after the battery module receives the vibration force, the relative displacement between each unit is easy to occur, so that the structural strength of the battery module is low.
Disclosure of Invention
The utility model mainly aims to provide a temperature equalizing device of a battery module and the battery module, thereby overcoming the defects in the prior art.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model comprises the following steps:
in one aspect, the utility model provides a temperature equalizing device of a battery module, which comprises a heat exchange pipeline, wherein the heat exchange pipeline comprises:
the even number of third flow channels are sequentially arranged at intervals and in parallel along the first direction, an accommodating space for accommodating batteries is formed between two adjacent third flow channels, and the single batteries in the accommodating space can thermally contact with the third flow channels in a heat conduction manner and exchange heat with heat exchange media in the third flow channels; and
the second flow passages are sequentially arranged at intervals and in parallel along the first direction, each second flow passage is communicated with the first ends of the selected two third flow passages, and the second flow passages are also communicated with the heat exchange medium inlet;
the plurality of fourth flow channels are sequentially arranged at intervals and in parallel along the first direction, each fourth flow channel is communicated with the second ends of the two selected third flow channels, the fourth flow channels are also communicated with the heat exchange medium outlet, and the second flow channels, the third flow channels and the fourth flow channels are sequentially communicated and form a channel for the heat exchange medium to continuously flow.
The utility model also provides a battery module which comprises a plurality of single batteries and a temperature equalizing device of the battery module, wherein the single batteries are arranged in the accommodating space and thermally contacted with the third flow passage guide, and the single batteries are electrically connected in series and/or in parallel.
Compared with the prior art, the utility model has the advantages that:
according to the temperature equalizing device of the battery module, the flow rate of the heat exchange medium in each parallel third flow passage is the same, so that each parallel third flow passage has the same heat exchange capacity, the battery module is ensured to have good temperature equalizing performance, and meanwhile, the energy consumption of the whole temperature equalizing device is reduced;
according to the temperature equalizing device of the battery module, the curvature radius of the contact surface of the heat exchange pipeline and the battery is enlarged according to the structural characteristics of the cylindrical battery, so that the arrangement stability and the installation stability of the battery module are facilitated, and meanwhile, the heat exchange pipeline and the single battery have larger heat exchange area, so that a plurality of single batteries have good heat uniformity and consistent temperature fields;
according to the temperature equalizing device of the battery module, each row of single batteries is arranged between two adjacent third flow passages and is in thermal contact with the two third flow passages, so that the heat exchanging effect of a heat exchanging pipeline on the battery module is better, the highest temperature and the maximum temperature difference of the battery module are reduced, and the use safety of the power battery is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
Fig. 1 is a schematic structural view of a temperature equalizing device of a battery module according to an exemplary embodiment of the present utility model;
fig. 2 is a schematic view illustrating an internal structure of a temperature equalizing device of a battery module according to an exemplary embodiment of the present utility model;
fig. 3 is a schematic flow diagram of a heat exchange medium inside a temperature equalization device of a battery module according to an exemplary embodiment of the present utility model.
Detailed Description
In view of the shortcomings in the prior art, the inventor of the present utility model has long studied and practiced in a large number of ways to propose the technical scheme of the present utility model. The technical scheme, the implementation process, the principle and the like are further explained as follows.
In one aspect, the utility model provides a temperature equalizing device of a battery module, which comprises a heat exchange pipeline, wherein the heat exchange pipeline comprises:
the even number of third flow channels are sequentially arranged at intervals and in parallel along the first direction, an accommodating space for accommodating batteries is formed between two adjacent third flow channels, and the single batteries in the accommodating space can thermally contact with the third flow channels in a heat conduction manner and exchange heat with heat exchange media in the third flow channels; and
the second flow passages are sequentially arranged at intervals and in parallel along the first direction, each second flow passage is communicated with the first ends of the selected two third flow passages, and the second flow passages are also communicated with the heat exchange medium inlet;
the plurality of fourth flow channels are sequentially arranged at intervals and in parallel along the first direction, each fourth flow channel is communicated with the second ends of the two selected third flow channels, the fourth flow channels are also communicated with the heat exchange medium outlet, and the second flow channels, the third flow channels and the fourth flow channels are sequentially communicated and form a channel for the heat exchange medium to continuously flow.
Further, the third flow channel is provided with an outer wall surface facing the accommodating space, a plurality of heat exchange surfaces are arranged on the outer wall surface and can be attached to the outer surface of the single battery arranged in the accommodating space, the plurality of heat exchange surfaces are sequentially arranged along a second direction, the second direction is intersected with the first direction, and the second direction is the length direction of the third flow channel.
Further, a plurality of positioning grooves are formed in the outer wall surface and are sequentially formed in the second direction, and the groove walls of the positioning grooves are heat exchange surfaces.
Further, the positioning groove is formed by partial depression of the outer wall surface, and the heat exchange surface is an arc groove surface matched with the outer surface of the single battery.
Further, the radius of curvature of the heat exchange surface is 9mm.
Further, the radius of curvature of the heat exchange surface is equal to 1/2 of the diameter of the single battery, and the radial maximum depth of the positioning groove is greater than or equal to 1/2 of the diameter of the single battery and less than or equal to the diameter of the single battery.
Further, a plurality of spacing grooves are formed in the outer wall surface, and the spacing grooves and the positioning grooves are alternately arranged at intervals along the second direction.
Further, the spacing groove is formed by a partial depression of the outer wall surface.
Further, a heat conducting layer is further arranged on the surface of the heat exchange surface, and the heat conducting layer is in heat conducting fit with the heat exchange surface.
Further, the heat conducting layer comprises a heat conducting silicone grease layer.
Further, each of the second flow channels is communicated with two third flow channels through a first bifurcated flow channel structure, and the first bifurcated flow channel structure can equally guide the heat exchange medium conveyed by the second flow channels into the two third flow channels.
Further, each third flow passage is in communication with only one second flow passage.
Further, the radial cross sections of the two third flow passages communicated with the same second flow passage are identical in shape and area.
Further, the heat exchange pipeline further comprises: the first flow passage is arranged between the heat exchange medium inlet and the second flow passage, and is respectively communicated with the heat exchange medium inlet and a plurality of second flow passages.
Further, each first flow passage is communicated with two second flow passages, each second flow passage is communicated with only one first flow passage, and the heat exchange medium flowing through the first flow passages can be equally guided into the two second flow passages.
Further, each of the first flow channels communicates with two second flow channels via a second diverging flow channel structure capable of equally guiding the heat exchange medium conveyed from the first flow channels into the two second flow channels.
Further, the radial cross sections of the two second flow channels communicated with the same first flow channel are identical in shape and area.
Further, the heat exchange pipeline further comprises an inlet channel, the inlet channel is communicated with the first flow channel, and the heat exchange medium inlet is arranged on the inlet channel.
Further, the heat exchange pipeline further comprises: and the fifth flow passage is arranged between the heat exchange medium outlet and the fourth flow passage and is also respectively communicated with the heat exchange medium outlet and the fourth flow passages.
Further, each fifth flow channel is communicated with two fourth flow channels, and the radial cross sections of the two fourth flow channels communicated with the same fifth flow channel can be identical in shape and area.
Further, the heat exchange pipeline further comprises an outlet channel, the outlet channel is communicated with the fifth flow channel, and the heat exchange medium outlet is arranged on the outlet channel.
Further, the temperature equalizing device of the battery module further comprises: the heat exchange mechanism is communicated with a heat exchange medium inlet and a heat exchange medium outlet of the heat exchange pipeline, and the pump is used for driving the heat exchange medium to circularly flow between the heat exchange pipeline and the heat exchange mechanism.
The utility model also provides a battery module which comprises a plurality of single batteries and a temperature equalizing device of the battery module, wherein the single batteries are arranged in the accommodating space and thermally contacted with the third flow passage guide, and the single batteries are electrically connected in series and/or in parallel.
Further, the battery module further comprises a heat insulation structure, and the heat insulation structure is filled in gaps between two adjacent single batteries and gaps between the single batteries and the heat exchange pipeline.
Further, the whole single battery is of a cylindrical structure.
The technical solution, implementation process, principle and the like will be further explained below with reference to the drawings and specific embodiments, and it should be noted that, in the embodiments of the present utility model, it is intended to explain the temperature equalizing device of the battery module and the structure of the battery module, and unless otherwise specified, the heat exchange pipes, pumps, heat exchange mechanisms and the like used in the embodiments of the present utility model may be known to those skilled in the art, and are all commercially available, and specific materials, dimensions and the like thereof are not limited herein.
Examples
Referring to fig. 1-3, a battery module includes a plurality of unit batteries 1 and a heat exchange pipeline 3, wherein the unit batteries 1 are electrically connected in series and/or parallel, and the heat exchange pipeline 3 is in heat conduction fit with the unit batteries 1.
In this embodiment, the plurality of unit cells 1 are combined to form a plurality of battery packs, and the plurality of unit cells included in each battery pack are sequentially arranged in at least one row along the second direction, and the plurality of battery packs are sequentially arranged at intervals along the first direction, wherein the second direction perpendicularly intersects the first direction.
In this embodiment, a heat insulation structure 4 is further filled in the gaps between the unit cells 1 and the heat exchange pipeline 3 and between two adjacent unit cells in the same row of unit cells, and the heat insulation structure 4 is mainly used for reducing the influence of the external environment temperature on the temperature of the unit cells; in particular, the insulating structure is composed of an insulating material.
In this embodiment, the heat exchange pipeline 3 includes one inlet channel 36, one first channel 31, two second channels 32, four third channels 33, two fourth channels 34, one fifth channel 35 and one outlet channel 37, which are sequentially disposed and communicated along the second direction, and the inlet channel 36, the first channel 31, the second channel 32, the third channel 33, the fourth channel 34, the fifth channel 35 and the outlet channel 37 are sequentially communicated and form a channel through which the heat exchange medium can continuously flow, wherein the third channel 33 is in heat conducting contact with the single battery.
In this embodiment, the inlet channel 36 is provided with a heat exchange medium inlet, and the heat exchange medium inlet may be disposed at one end of the inlet channel 36, or the inlet channel 36 may be integrally used as a heat exchange medium inlet.
In the present embodiment, the first flow channel 31 is used as a conveying channel of the heat exchange medium, and one end of the first flow channel 31 is communicated with the inlet channel 36, wherein the first flow channel 31 extends along the second direction.
In this embodiment, the second flow channels 32 are used as conveying channels for the heat exchange medium, and the two second flow channels 32 are spaced apart and arranged in parallel along the first direction, so that the heat exchange medium flowing through the first flow channel 31 can be equally guided into the two second flow channels 32; specifically, the first flow channel 31 communicates with two second flow channels 32 via a second split flow channel structure, which is capable of equally guiding the heat exchange medium inputted from the first flow channel 31 into the two second flow channels 32, wherein the second flow channels 32 may also extend along a second direction, and the second direction is perpendicular to the first direction.
In the present embodiment, the second flow passages 32 are also arranged in parallel with the first flow passages 31, and the radial cross-sections of the two second flow passages 32 are identical in shape and area so that the amount (volume) of the heat exchange medium flowing from the first flow passage 31 into the two second flow passages 32 is identical.
In this embodiment, the third flow channels 33 are used as heat exchange flow channels in heat conduction contact with the unit battery 1, specifically, four third flow channels 33 are sequentially spaced and arranged in parallel along the first direction, two adjacent third flow channels 33 are a group, two third flow channels 33 are communicated with one second flow channel 32, each third flow channel 33 is only communicated with one second flow channel 32, and the heat exchange medium flowing through the second flow channel 32 can be equally guided into the two third flow channels 33 communicated with the second flow channel 32, so that each parallel third flow channel 33 has the same heat exchange capability, thereby ensuring that the battery module has better uniform temperature, and meanwhile, the energy consumption of the whole system is lower.
Specifically, each of the second flow channels 32 communicates with two third flow channels 33 via a first bifurcated flow channel structure capable of equally guiding the heat exchange medium conveyed by the second flow channel 32 into the two third flow channels 33.
In the present embodiment, the third flow channels 33 also extend in the second direction, and the radial cross-sections of the two third flow channels 33 communicating with the same second flow channel 32 are the same in shape and area, so that it is further ensured that the two (volumes) of the heat exchange medium flowing from the second flow channel 32 into the two third flow channels 33 are the same.
In this embodiment, an accommodating space for accommodating the battery is formed between two adjacent third flow channels 33, and the unit battery 1 located in the accommodating space can be in heat conduction contact with the third flow channels 33 and exchange heat with the heat exchange medium in the third flow channels 33.
In the present embodiment, a row of unit cells 1 (for example, in fig. 1, a case in which each row of unit cells includes five unit cells is shown as one example) is disposed in an accommodating space between two adjacent third flow channels 33, and the unit cells are in a cylindrical structure, that is, each unit cell 1 is in heat-conducting contact with two adjacent third flow channels 33 at the same time, so as to achieve a sufficient cooling effect of the heat exchange pipeline 3 on the battery module.
In this embodiment, the third flow channel 33 has an outer wall surface facing the accommodating space, and a plurality of heat exchange surfaces are disposed on the outer wall surface, and the heat exchange surfaces can be attached to the outer surface of the unit cell 1 disposed in the accommodating space, where the plurality of heat exchange surfaces are sequentially disposed along a second direction, and the second direction is a length direction of the third flow channel 33.
In this embodiment, the outer wall surface is provided with a plurality of positioning grooves, the plurality of positioning grooves are sequentially arranged along the second direction, and the groove wall of the positioning groove is the heat exchange surface, wherein the positioning groove is formed by partial depression of the outer wall surface.
When the single battery is a cylindrical battery, the heat exchange surface is an arc-shaped groove surface matched with the outer surface of the single battery, specifically, the single battery can be of a cylindrical battery structure, the curvature radius of the heat exchange surface is 9mm, the curvature radius of the heat exchange surface is equal to 1/2 of the diameter of the single battery, and the radial maximum depth of the positioning groove is greater than or equal to 1/2 of the diameter of the single battery and less than or equal to the diameter of the single battery, so that the heat exchange pipeline 3 and the single battery 1 are fully contacted and have a larger heat exchange area.
The unit cell may be a prismatic cell, a pouch cell, or the like.
In this embodiment, a plurality of spacing grooves are provided on the outer wall surface, and the spacing grooves and the positioning grooves are alternately provided at intervals along the second direction, wherein the spacing grooves are formed by partial depressions of the outer wall surface.
In this embodiment, the surface of the heat exchange surface is further provided with a heat conducting layer, and the heat conducting layer is in heat conducting fit with the heat exchange surface, specifically, the heat conducting layer includes a heat conducting silicone grease layer, and the heat conducting layer can reduce the contact thermal resistance between the single battery 1 and the third flow channel 33, so as to enhance the heat exchange effect.
In this embodiment, the fourth flow channels 34 are used as a conveying channel or a converging channel of the heat exchange medium, two fourth flow channels 34 are spaced along the first direction and are arranged in parallel, each fourth flow channel 34 is communicated with two adjacent third flow channels 33, each third flow channel 33 is only communicated with one fourth flow channel 34, and specifically, the areas and the shapes of the radial cross sections of the two fourth flow channels 34 are the same.
In this embodiment, the fifth flow channel 35 communicates with the two fourth flow channels 34 and serves as a converging flow channel of the two fourth flow channels 34.
In this embodiment, the outlet channel 37 is provided with a heat exchange medium outlet, and the heat exchange medium outlet may be disposed at one end of the outlet channel 37, or the outlet channel 37 may be integrally used as a heat exchange medium outlet.
In this embodiment, the inlet flow channel 36 and the outlet flow channel 37 are further connected to a heat exchange mechanism, so that a loop for continuously flowing the heat exchange medium 5 is formed among the inlet flow channel 36, the first flow channel 31, the second flow channel 32, the third flow channel 33, the fourth flow channel 34, the fifth flow channel 35, the outlet flow channel 37 and the heat exchange mechanism, and the inlet flow channel 36 and the outlet flow channel 37 are further connected to a pump for driving the heat exchange medium 5 to circulate in the loop, specifically, the heat exchange mechanism may be a heat exchanger or the like, and the pump may be an electromagnetic pump or the like.
In this embodiment, referring to fig. 3 again, the arrows in the drawing point to the flow direction of the heat exchange medium 5, where the heat exchange medium 5 may be a cooling medium or a heating medium, and the heat exchange medium may be water with a set temperature, for example; specifically, fresh heat exchange medium after heat exchange by the heat exchange mechanism enters an inlet flow channel 36 of the heat exchange pipeline 3 under the drive of the electromagnetic pump and enters a first flow channel 31 through the inlet flow channel 36, the heat exchange medium 5 uniformly flows to two second flow channels 32 of the heat exchange pipeline under the guidance of a bifurcation flow channel structure of the first flow channel 31, similarly, the heat exchange medium 5 uniformly flows to four third flow channels 33 of the heat exchange pipeline and exchanges heat with a single battery under the guidance of the bifurcation flow channel structure of the second flow channels 32, and then the heat exchange medium after heat exchange with the single battery is converged into the heat exchange mechanism through a fourth flow channel 34, a fifth flow channel 35 and an outlet flow channel 37 in sequence and flows and exchanges heat of the next cycle.
Specifically, in the charge and discharge process of the cylindrical single battery 1, heat is inevitably released due to ohmic internal resistance, polarization phenomenon, reversible reaction, side reaction and the like existing in the battery, the heat released by the pole part 2 of the single battery 1 is highest, the third flow channel 33 is in contact with each single battery 1, the heat released by the single battery 1/the pole part 2 is thermally conducted to the surface of the single battery, the heat is transferred to the third flow channel 33 of the heat exchange pipeline through the heat conducting layer, and when the heat exchange medium 5 flows in the third flow channel 33, the heat is taken away through the action of convection heat exchange; in addition, as the curvature radius of the contact surface between the third flow passage 33 and each cylindrical single battery 1 is 9mm, the heat exchange pipeline and the single battery can be fully contacted and have larger heat exchange area, so that the thermal uniformity of the surface of the single battery is better and the temperature distribution of each single battery is consistent; and because every two third flow passages in the four third flow passages of the heat exchange pipeline exchange heat for one row/row of single cells of the battery module, the heat exchange pipeline has a good heat dissipation effect on the battery module.
It should be understood that the above embodiments are merely for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and implement the same according to the present utility model without limiting the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (24)
1. The utility model provides a battery module's samming device which characterized in that includes the heat transfer pipeline, the heat transfer pipeline includes:
the even number of third flow channels are sequentially arranged at intervals and in parallel along the first direction, an accommodating space for accommodating batteries is formed between two adjacent third flow channels, and the single batteries in the accommodating space can thermally contact with the third flow channels in a heat conduction manner and exchange heat with heat exchange media in the third flow channels; the second flow passages are sequentially arranged at intervals and in parallel along the first direction, each second flow passage is communicated with the first ends of the selected two third flow passages, and the second flow passages are also communicated with the heat exchange medium inlet;
the plurality of fourth flow channels are sequentially arranged at intervals and in parallel along the first direction, each fourth flow channel is communicated with the second ends of the two selected third flow channels, the fourth flow channels are also communicated with the heat exchange medium outlet, and the second flow channels, the third flow channels and the fourth flow channels are sequentially communicated and form a channel for the heat exchange medium to continuously flow.
2. The temperature equalizing device of a battery module according to claim 1, wherein: the third flow channel is provided with an outer wall surface facing the accommodating space, a plurality of heat exchange surfaces are arranged on the outer wall surface and can be attached to the outer surface of the single battery arranged in the accommodating space, the plurality of heat exchange surfaces are sequentially arranged along a second direction, the second direction is intersected with the first direction, and the second direction is the length direction of the third flow channel.
3. The temperature equalizing device of a battery module according to claim 2, wherein: the outer wall surface is provided with a plurality of positioning grooves, the positioning grooves are sequentially arranged along the second direction, and the groove walls of the positioning grooves are heat exchange surfaces.
4. The temperature equalizing device of a battery module according to claim 3, wherein: the positioning groove is formed by partial depression of the outer wall surface, and the heat exchange surface is an arc-shaped groove surface matched with the outer surface of the single battery.
5. The temperature equalizing device of a battery module according to claim 4, wherein: the radius of curvature of the heat exchange surface is 9mm.
6. The temperature equalizing device of a battery module according to claim 4, wherein: the radius of curvature of the heat exchange surface is 1/2 of the diameter of the single battery, and the radial maximum depth of the positioning groove is more than or equal to 1/2 of the diameter of the single battery and less than or equal to the diameter of the single battery.
7. The temperature equalizing device of a battery module according to claim 3, wherein: the outer wall surface is provided with a plurality of spacing grooves, and the spacing grooves and the positioning grooves are alternately arranged along the second direction at intervals.
8. The temperature equalizing device of a battery module according to claim 7, wherein: the spacing groove is formed by a partial depression of the outer wall surface.
9. The temperature equalizing device of a battery module according to claim 7, wherein: the surface of the heat exchange surface is also provided with a heat conduction layer, and the heat conduction layer is in heat conduction fit with the heat exchange surface.
10. The temperature equalizing device of a battery module according to claim 9, wherein: the thermally conductive layer includes a thermally conductive silicone grease layer.
11. The temperature equalizing device of a battery module according to claim 1, wherein: each second flow passage is communicated with two third flow passages through a first bifurcate flow passage structure, and the first bifurcate flow passage structure can equally guide the heat exchange medium conveyed by the second flow passages into the two third flow passages.
12. The temperature equalizing device of a battery module according to claim 11, wherein: each third flow passage communicates with only one second flow passage.
13. The temperature equalizing device of a battery module according to claim 11, wherein: the radial cross sections of the two third flow passages communicated with the same second flow passage have the same shape and area.
14. The battery module temperature equalizing device according to claim 1, wherein the heat exchange line further comprises: the first flow passage is arranged between the heat exchange medium inlet and the second flow passage, and is respectively communicated with the heat exchange medium inlet and a plurality of second flow passages.
15. The temperature equalizing device of a battery module according to claim 14, wherein: each first flow passage is communicated with two second flow passages, each second flow passage is communicated with only one first flow passage, and the heat exchange medium flowing through the first flow passages can be equally guided into the two second flow passages.
16. The temperature equalizing device of a battery module according to claim 15, wherein: each first flow passage is in communication with two second flow passages via a second diverging flow passage arrangement capable of equally directing heat exchange medium conveyed from the first flow passage into the two second flow passages.
17. The temperature equalizing device of a battery module according to claim 15, wherein: the radial cross sections of the two second flow channels communicated with the same first flow channel are identical in shape and area.
18. The temperature equalizing device of a battery module according to claim 14, wherein: the heat exchange pipeline further comprises an inlet channel, the inlet channel is communicated with the first flow channel, and the heat exchange medium inlet is arranged on the inlet channel.
19. The battery module temperature equalizing device according to claim 1, wherein the heat exchange line further comprises: and the fifth flow passage is arranged between the heat exchange medium outlet and the fourth flow passage and is also respectively communicated with the heat exchange medium outlet and the fourth flow passages.
20. The temperature equalizing device of a battery module according to claim 19, wherein: each fifth runner is communicated with two fourth runners.
21. The temperature equalizing device of a battery module according to claim 19, wherein: the heat exchange pipeline further comprises an outlet channel, the outlet channel is communicated with the fifth flow channel, and the heat exchange medium outlet is arranged on the outlet channel.
22. The temperature equalizing device of a battery module according to claim 1, further comprising: the heat exchange mechanism is communicated with a heat exchange medium inlet and a heat exchange medium outlet of the heat exchange pipeline, and the pump is used for driving the heat exchange medium to circularly flow between the heat exchange pipeline and the heat exchange mechanism.
23. A battery module characterized by comprising a plurality of single batteries and a temperature equalizing device of the battery module according to any one of claims 1-22, wherein the single batteries are arranged in the accommodating space and thermally contacted with the third flow passage, and the single batteries are electrically connected in series and/or parallel.
24. The battery module of claim 23, wherein: the battery module further comprises a heat insulation structure, and the heat insulation structure is filled in gaps between two adjacent single batteries and between the single batteries and the heat exchange pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506118.6U CN219642947U (en) | 2023-03-10 | 2023-03-10 | Temperature equalizing device of battery module and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320506118.6U CN219642947U (en) | 2023-03-10 | 2023-03-10 | Temperature equalizing device of battery module and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219642947U true CN219642947U (en) | 2023-09-05 |
Family
ID=87821844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320506118.6U Active CN219642947U (en) | 2023-03-10 | 2023-03-10 | Temperature equalizing device of battery module and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219642947U (en) |
-
2023
- 2023-03-10 CN CN202320506118.6U patent/CN219642947U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110994072A (en) | Parallel type multi-channel liquid cooling structure for lithium battery and lithium battery | |
| CN111540982A (en) | Bidirectional flow passage battery cooling plate and liquid cooling power battery module | |
| CN114583326A (en) | Energy storage battery module, liquid cooling plate and liquid cooling plate combination | |
| CN213546416U (en) | Liquid cooling board and battery package | |
| CN210668612U (en) | Battery module and battery package | |
| CN115000578A (en) | Battery module, battery pack and thermal management system | |
| CN113675484B (en) | Sodium-lithium ion battery integrated thermal management system based on energy complementation | |
| CN104733799A (en) | Harmonica channel type heat exchanger | |
| CN113178639B (en) | Fractal network runner cooling plate | |
| CN109830625B (en) | Cylindrical battery thermal management system | |
| CN219642947U (en) | Temperature equalizing device of battery module and battery module | |
| CN218241979U (en) | Heat exchanger, battery package and vehicle | |
| CN115810831A (en) | Battery cooling device and new energy vehicle | |
| CN115732807A (en) | Heat transfer structure of two independent cavitys of parallel | |
| CN116799352A (en) | Battery and electricity utilization device | |
| CN220796877U (en) | Liquid cooling battery module | |
| CN220439714U (en) | Temperature adjusting structure of battery pack and battery pack | |
| CN216903112U (en) | A samming device and samming system for new forms of energy battery module | |
| CN216671753U (en) | Battery module and car | |
| CN219801012U (en) | Battery liquid cooling structure and battery pack | |
| CN220172241U (en) | Heat insulation and conduction structure, battery pack and vehicle | |
| CN217334178U (en) | Soft packet of lithium battery module thermal management system | |
| CN216120476U (en) | Liquid-cooled battery pack heat dissipation device with phase change heat storage function | |
| CN219163517U (en) | Power battery heat radiation structure | |
| CN218896728U (en) | Battery pack and power utilization device with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |