CN219419158U - Battery thermal management system - Google Patents
Battery thermal management system Download PDFInfo
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- CN219419158U CN219419158U CN202222567981.0U CN202222567981U CN219419158U CN 219419158 U CN219419158 U CN 219419158U CN 202222567981 U CN202222567981 U CN 202222567981U CN 219419158 U CN219419158 U CN 219419158U
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- battery module
- heat dissipation
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Classifications
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- 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
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Abstract
The utility model provides a battery thermal management system, which relates to the technical field of batteries and comprises a box body and a battery module, wherein the battery module is accommodated in the box body, a first heat-dissipation cold plate is arranged on the side wall of the battery module and is arranged in the box body and used for dissipating heat of the side wall of the battery module, a second heat-dissipation cold plate is also arranged on the bottom side of the battery module and is used for dissipating heat of the bottom wall of the battery module. Compared with the prior art, the battery thermal management system provided by the utility model can radiate the side wall and the bottom wall of the battery module, has good radiating effect, can prevent the heat generated by the battery cell from exceeding the refrigerating capacity of the cooling system under the condition of high-rate continuous charging, prevents the battery cell from exceeding the allowable highest temperature, and prolongs the service life of the battery cell.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery thermal management system.
Background
The research of the inventor shows that with the rapid development of new energy automobiles, the pursuit of the power of the whole automobile by people is higher and higher, the quick charge multiplying power of a battery system is larger and larger, the required quick charge lasting multiplying power of the whole automobile reaches 4.5 ℃, and the heat generation capacity of a battery core is beyond the heat dissipation capacity of the current cooling design.
At present, in the new energy market, a battery system is mainly designed in a single-sided cooling scheme, a cooling surface is mainly arranged on the bottom surface of a battery, and under the condition of high-rate continuous charging, as the heat generation amount of a battery core exceeds the refrigerating capacity of the cooling system, a good heat dissipation effect cannot be achieved, the temperature of the battery core under the high-temperature condition exceeds the allowable highest temperature, and the service life of the battery core is not recovered.
Disclosure of Invention
The utility model aims to provide a battery thermal management system which can realize good heat dissipation of a battery and prolong the service life of a battery core.
Embodiments of the present utility model are implemented as follows:
in a first aspect, the utility model provides a battery thermal management system, comprising a box body and a battery module, wherein the battery module is accommodated in the box body, a first heat dissipation cold plate is arranged on the side wall of the battery module, the first heat dissipation cold plate is arranged in the box body and used for dissipating heat of the side wall of the battery module, a second heat dissipation cold plate is also arranged on the box body and is arranged on the bottom side of the battery module and used for dissipating heat of the bottom wall of the battery module.
In an alternative embodiment, the battery module includes an end plate and at least two electric cores, a plurality of electric cores are arranged in parallel, the end plate is arranged at the ends of the electric cores and is connected with the box body, and the first heat dissipation cold plate is arranged at two ends of the end plate and is attached to the corresponding side wall of the electric core.
In an optional embodiment, the battery thermal management system further includes a third heat dissipation cold plate, the third heat dissipation cold plate is disposed between two adjacent battery cells, and two sides of the third heat dissipation cold plate are respectively attached to side walls of the two adjacent battery cells.
In an alternative embodiment, the end plate is provided with a position avoiding groove, and the third heat dissipation cold plate is clamped and mounted on the position avoiding groove.
In an optional embodiment, a connecting pipeline is further arranged between the end part of the third heat dissipation cold plate and the end part of the second heat dissipation cold plate, the connecting pipeline connects the third heat dissipation cold plate and the second heat dissipation cold plate in series, a first inlet joint and a first outlet joint are further arranged on the box body, and the connecting pipeline is simultaneously connected with the first inlet joint and the first outlet joint.
In an alternative embodiment, the box includes holding frame, top cap and bottom plate, the bottom plate sets up the bottom of holding frame, the second heat dissipation cold plate sets up on the bottom plate, the top cap sets up the top of holding frame, still be provided with the heat conduction layer on the second heat dissipation cold plate, the both sides of heat conduction layer respectively with the second heat dissipation cold plate with battery module laminates mutually.
In an alternative embodiment, an insulation layer is attached to the inner side of the accommodating frame, and the insulation layer is disposed opposite to the side wall of the battery module.
In an alternative embodiment, the inner side of the accommodating frame is provided with an accommodating groove, and the heat insulating layer is embedded in the accommodating groove.
In an alternative embodiment, a fixing beam is further arranged at the bottom of the accommodating frame, two ends of the fixing beam are respectively connected with the opposite side walls of the accommodating frame, and the battery module is detachably mounted on the fixing beam.
In an alternative embodiment, a fixing boss is disposed at the bottom side of the fixing beam, and the fixing boss abuts against the second heat dissipation cold plate, so that the second heat dissipation cold plate and the fixing beam are disposed at intervals.
The beneficial effects of the embodiment of the utility model include:
according to the battery thermal management system provided by the embodiment of the utility model, the first heat-dissipation cold plate is arranged on the side wall of the battery module, the side wall of the battery module is subjected to heat dissipation through the first heat-dissipation cold plate, the second heat-dissipation cold plate is also arranged in the box body, and the bottom wall of the battery module is subjected to heat dissipation through the second heat-dissipation cold plate, so that the common heat dissipation of the side wall and the bottom wall of the battery module is realized, the heat dissipation area is greatly increased, the heat dissipation effect is better, and the temperature of the battery cell can be effectively controlled. Compared with the prior art, the battery thermal management system provided by the utility model can be used for radiating the side wall and the bottom wall of the battery module, has a good radiating effect, can prevent the heat generated by the battery cell from exceeding the refrigerating capacity of the cooling system under the condition of high-rate continuous charging, prevents the battery cell from exceeding the allowable maximum temperature of the battery cell, and prolongs the service life of the battery cell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram illustrating an internal structure of a battery thermal management system according to a first embodiment of the present utility model;
fig. 2 is an exploded view of a battery thermal management system according to a first embodiment of the present utility model;
fig. 3 is a schematic view showing a partial structure of a battery thermal management system according to a first embodiment of the present utility model;
FIG. 4 is a schematic view of the end plate of FIG. 3;
fig. 5 is an enlarged schematic view of part of v in fig. 1;
fig. 6 is a schematic structural view of the accommodating frame in fig. 1.
Icon:
100-battery thermal management system; 110-a box body; 111-a receiving frame; 113-a top cover; 115-a bottom plate; 117-insulating layer; 119-accommodating grooves; 130-a battery module; 131-end plates; 133-cell; 135-a clearance groove; 137-connecting pipelines; 139-bonding mating surface; 150-a first heat dissipation cold plate; 170-a second heat-dissipating cold plate; 171-a thermally conductive layer; 173-fixing the beam; 175-fixing the boss; 190-third heat dissipation cold plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As disclosed in the background art, in the prior art, a single-sided heat exchange mode is generally adopted for heat dissipation of the battery module, namely, a heat dissipation structure such as a cold plate is arranged at the bottom or the side wall of the battery module, so that heat dissipation of the single side of the battery module is carried out, the heat dissipation limit of the heat dissipation structure is lower, under the condition that the battery is charged continuously at a high multiplying power, good heat dissipation effect cannot be achieved due to the fact that the heat generation quantity of the battery core exceeds the refrigerating capacity of the cooling system, the temperature of the battery core exceeds the allowable highest temperature under the high-temperature condition, and adverse effects of no recovery can be caused to the service life of the battery core.
In addition, the battery system in the prior art has insufficient battery heat preservation capability in low-temperature weather, and the endurance of the battery cell is seriously influenced. At present, a battery system lacks a heat preservation function, and in a low-temperature environment, as the battery system does not conduct heat preservation design, a battery cell is in the low-temperature environment at all times, performance attenuation at low temperature is serious, if other heating modes are adopted for heating, energy of the system can be lost, and the endurance mileage of the whole vehicle is reduced.
In order to solve the problems, the utility model provides a battery thermal management system which can effectively solve the problems of overheat and heat preservation of a battery cell. The battery thermal management system provided by the utility model is described in detail below.
First embodiment
Referring to fig. 1 to 4, the present embodiment provides a battery thermal management system 100 with good heat dissipation effect, which can avoid the heat generated by the battery cell 133 from exceeding the cooling capacity of the cooling system under the condition of high-rate continuous charging, avoid the battery cell 133 from exceeding the allowable maximum temperature, and improve the service life of the battery cell 133. Meanwhile, the heat preservation effect is good, the temperature of the battery core 133 can be kept in a low-temperature environment, and other heating modes are avoided, so that the endurance mileage of the whole vehicle is improved.
The embodiment provides a battery thermal management system 100, which comprises a box 110 and a battery module 130, wherein the battery module 130 is accommodated in the box 110, a first heat dissipation cold plate 150 is arranged on the side wall of the battery module 130, the first heat dissipation cold plate 150 is arranged in the box 110 and used for dissipating heat on the side wall of the battery module 130, a second heat dissipation cold plate 170 is further arranged on the box 110, and the second heat dissipation cold plate 170 is arranged on the bottom side of the battery module 130 and used for dissipating heat on the bottom wall of the battery module 130.
According to the battery thermal management system 100 provided by the embodiment, the first heat dissipation cold plate 150 is arranged on the side wall of the battery module 130, the side wall of the battery module 130 is cooled through the first heat dissipation cold plate 150, the second heat dissipation cold plate 170 is further arranged in the box 110, the bottom wall of the battery module 130 is cooled through the second heat dissipation cold plate 170, the common heat dissipation of the side wall and the bottom wall of the battery module 130 is realized, the heat dissipation area is greatly improved, the heat dissipation effect is better, and the temperature of the battery core 133 can be effectively controlled.
It should be noted that, in this embodiment, at least two second heat dissipation cold plates 170 may be used to dissipate heat from at least two side walls of the battery module 130 at the same time, and this embodiment is illustrated by taking two second heat dissipation cold plates 170 disposed opposite to each other as an example. The conventional heat dissipation is single-sided heat dissipation, the heat dissipation area is usually the bottom surface of the battery module 130, and if the area of the bottom surface is set to be S1, the heat dissipation area of the battery module 130 contacting the cold plate is also set to be S1; in this embodiment, the heat dissipation area of the side surface of the battery module 130 is S2, the heat dissipation areas of the two side surfaces of the battery module 130 are both in heat dissipation contact with the cold plate, the heat dissipation area of the two side surfaces is 2×s2, and meanwhile, the bottom of the battery module 130 is also in heat dissipation contact with the bottom cold plate, the heat dissipation area is S1, and the total heat dissipation area of the battery cells 133 in this embodiment is (s1+2×s2) > S1, i.e. is greater than the conventional heat dissipation design mode, so that the heat dissipation area is improved.
In addition, it should be noted that, in this embodiment, a heat exchange path is further added, the conventional heat dissipation path is bottom heat exchange, the battery module 130 can only dissipate heat at the bottom surface, and when the battery module 130 generates heat, the heat of the battery module 130 is transferred to the bottom surface of the battery module 130 through heat conduction in the vertical direction, and then transferred to the bottom cold plate; the heat dissipation paths designed in this embodiment enable the battery module 130 to dissipate heat from 2 sides and 1 bottom, and the heat of the battery module 130 is conducted in horizontal and vertical directions, and the heat is diffused in the shortest paths and is taken away by the cold plates on the sides and the cold plates on the bottom respectively. The head of the present embodiment can effectively manage the heat of the battery module 130 regardless of the heat exchange amount or the heat transfer path.
The battery module 130 includes an end plate 131 and at least two electric cells 133, the electric cells 133 are arranged in parallel, the end plate 131 is arranged at the ends of the electric cells 133 and connected with the case 110, and the first heat dissipation cold plates 150 are arranged at two ends of the end plate 131 and attached to the side walls of the corresponding electric cells 133. Specifically, the plurality of electric cores 133 are orderly stacked in the case 110, the layout mode is consistent with that of the conventional electric cores 133, the two ends of each electric core 133 are provided with end plates 131, the end plates 131 arranged at intervals form a clearance groove 135 structure, and the end plates 131 can be fixedly mounted on the case 110 before the electric cores 133 are mounted. In addition, the first heat dissipation cold plates 150 are disposed at two ends of the end plate 131 and attached to the side walls of the battery cells 133, and the first heat dissipation cold plates 150 also play a role in fixing the battery cells 133 while dissipating heat.
In this embodiment, the first heat dissipation cold plate 150 may be adhered to the side wall of the battery cell 133 by a heat conductive adhesive, and may also be adhered to the end of the end plate 131 by a structural adhesive. Specifically, the end plate 131 is provided with recessed adhesive engagement surfaces 139 in partial areas at both ends thereof, and the edges of the first heat-dissipating cold plate 150 can be adhered to the end plate 131 by applying structural adhesive to the adhesive engagement surfaces 139. The end plate 131 and the first heat dissipation cold plate 150 can form a frame structure together, and cover the plurality of electric cores 133, thereby functioning as a fixing structure and effectively fixing the electric cores 133.
Further, the battery thermal management system 100 further includes a third heat dissipation cold plate 190, the third heat dissipation cold plate 190 is disposed between two adjacent battery cells 133, and two sides of the third heat dissipation cold plate 190 are respectively attached to sidewalls of the two adjacent battery cells 133. Specifically, the number of the battery cells 133 is plural, a third heat dissipation cold plate 190 is disposed between two adjacent battery cells 133 disposed in parallel, two ends of the third heat dissipation cold plate 190 are respectively mounted on two opposite end plates 131 to realize fixation, and the battery cells 133 disposed in the middle can also dissipate heat by the arrangement of the third heat dissipation cold plate 190, so that the heat dissipation area is further improved, and the heat dissipation capability is further improved.
In this embodiment, the end plate 131 is provided with a clearance groove 135, and the third heat dissipation cold plate 190 is mounted on the clearance groove 135 in a clamping manner. Specifically, the middle part of the end plate 131 is provided with a keep-away groove 135, and both ends of the third heat-dissipating cold plate 190 are provided with clamping protrusions, which are assembled in the keep-away groove 135, thereby achieving the fixation of the third heat-dissipating cold plate 190. Preferably, the third heat-dissipating cold plate 190 can be fixedly mounted in the avoidance groove 135 by structural adhesive, so that the fixing effect is further optimized.
In this embodiment, a connection pipeline 137 is further disposed between the end of the third heat-dissipating cold plate 190 and the end of the first heat-dissipating cold plate 150, the connection pipeline 137 connects the third heat-dissipating cold plate 190 and the first heat-dissipating cold plate 150 in series, a first inlet connector and a first outlet connector are further disposed on the case 110, and the connection pipeline 137 is simultaneously connected with the first inlet connector and the first outlet connector. Specifically, one end of each of the first heat-dissipating cold plates 150 and the third heat-dissipating cold plates 190 is provided with a water receiving port, and the first heat-dissipating cold plates 150 and the third heat-dissipating cold plates 190 can be connected in series by connecting the connecting pipe 137 with the water receiving port, thereby forming an integral circulation pipe.
In this embodiment, the box 110 is further provided with a second inlet connector and a second outlet connector, and the second inlet connector and the second outlet connector are connected with the second heat-dissipating cold plate 170, so as to realize the liquid inlet and outlet of the second heat-dissipating cold plate 170.
It should be noted that, in the present embodiment, the first heat dissipating cold plate 150, the second heat dissipating cold plate 170 and the third heat dissipating cold plate 190 are all liquid cooling heat dissipating cold plate structures, and the materials thereof may be aluminum, copper or a composite of plastic and metal, and the specific structure and heat dissipating principle may refer to the existing cold plate structures.
Referring to fig. 2 to 6, in the present embodiment, the case 110 includes a receiving frame 111, a top cover 113 and a bottom plate 115, the bottom plate 115 is disposed at the bottom of the receiving frame 111, the second heat dissipation cold plate 170 is disposed on the bottom plate 115, the top cover 113 is disposed at the top of the receiving frame 111, the second heat dissipation cold plate 170 is further provided with a heat conducting layer 171, and two sides of the heat conducting layer 171 are respectively attached to the second heat dissipation cold plate 170 and the battery module 130. Specifically, the receiving frame 111 has a rectangular frame shape, and the top cover 113 and the bottom plate 115 are respectively provided at the upper and lower ends of the receiving frame 111, and form a closed chamber structure in which the battery module 130 is mounted. In addition, by providing the heat conducting layer 171, heat generated at the bottom of the battery cell 133 can be quickly conducted to the second heat-dissipating cold plate 170, so that heat transfer is realized. The heat conductive layer 171 may be a silica gel pad, polyurethane, epoxy resin, or other material, and has a thermal conductivity coefficient of 0.01w×m/k to 20w×m/k.
It should be noted that, in the present embodiment, the second heat-dissipating cold plate 170 is integrally disposed on the bottom plate 115, and in other preferred embodiments of the present utility model, the second heat-dissipating cold plate 170 may be integrally disposed with the bottom plate 115, i.e. the second heat-dissipating cold plate 170 serves as a bottom structure of the case 110 and functions as a structural member.
In the present embodiment, the thermal insulation layer 117 is attached to the inner side of the receiving frame 111, and the thermal insulation layer 117 is disposed opposite to the side wall of the battery module 130. Specifically, the heat insulating layer 117 is made of a heat insulating material, such as heat insulating cotton, and the heat insulating layer 117 is attached to the inner side of the accommodating frame 111, so that a heat insulating effect can be achieved, and heat of the internal battery cell 133 module is prevented from being dissipated outwards in a large amount through the accommodating frame 111. The heat insulation material can be polyurethane foam, EPDM, silica gel foam and other materials, and the heat conductivity coefficient of the heat insulation material is 0.001w m/k-5 w m/k.
In the present embodiment, the accommodating frame 111 is provided with an accommodating groove 119 on the inner side, and the heat insulating layer 117 is embedded in the accommodating groove 119. Specifically, by providing the accommodating groove 119, the arrangement of the heat insulating layer 117 can be facilitated, and the heat insulating layer 117 is fixed, so that the heat insulating layer 117 is prevented from falling.
It should be noted that, because the first heat dissipation cold plate 150 and the battery module 130 of side are integrated, the first heat dissipation cold plate 150 is directly exposed inside the battery package module, when the internal environment temperature of the battery module 130 rises, and is higher than the temperature of the first heat dissipation cold plate 150, the internal air temperature can heat the first heat dissipation cold plate 150, and in addition, the condensation phenomenon can also appear in the too big temperature difference of the first heat dissipation cold plate 150 and the environment, in order to solve the above problems, the outside of the first heat dissipation cold plate 150 on the side of the module is designed with heat preservation cotton, the influence of the air in the package on the cold plate is reduced, and the condensation is absorbed simultaneously. Meanwhile, when the external temperature is too high (for example, insolated in summer), the external environment can heat the box body 110 of the battery, the temperature of the box body 110 can rise, the temperature in the battery pack can be heated by the box body 110, and the heat preservation layer 117 is arranged to further reduce the influence of the external environment temperature.
In this embodiment, the bottom of the accommodating frame 111 is further provided with a fixing beam 173, the fixing beam 173 is disposed near the bottom plate 115, and two ends of the fixing beam 173 are respectively connected with opposite side walls of the accommodating frame 111, and the battery module 130 is detachably mounted on the fixing beam 173. Specifically, the fixing beam 173 is laterally disposed in the receiving frame 111 for carrying the battery module 130, wherein the end plate 131 may be fixed to the fixing beam 173 by a connection member such as a screw.
In this embodiment, a fixing boss 175 is disposed at the bottom side of the fixing beam 173, and the fixing boss 175 abuts against the second heat-dissipating cold plate 170, so that the second heat-dissipating cold plate 170 is disposed at a distance from the fixing beam 173. Specifically, the number of the fixing beams 173 may be plural, and the plurality of fixing beams 173 are bridged at the bottom of the accommodating frame 111, so that the second heat dissipating cold plate 170 at the bottom and the accommodating frame 111 can be designed without contact by providing the fixing beams 173. The fixing boss 175 is provided at a bottom side surface of the fixing beam 173 and is protruded downward, and the fixing boss 175 may be embedded in the fixing beam 173 by riveting or nesting. The second heat dissipating cold plate 170 is further provided with a mating position, so that the fixing boss 175 can be in direct contact with the surface of the second heat dissipating cold plate 170, and no direct contact exists between the second heat dissipating cold plate 170 and the fixing beam 173, so that the heat transferred by the second heat dissipating cold plate 170 is not directly transferred to the fixing beam 173, but is transferred through the fixing boss 175.
The fixing boss 175 may be made of polyurethane, metal aluminum, metal steel, nylon, epoxy plate, or the like.
According to the battery thermal management system 100 provided by the embodiment, the side surfaces and the bottom surface of the battery core 133 are in contact with the cold plate, and when the battery core 133 is charged and discharged at a high rate under a high temperature condition, the temperature of the battery core 133 can be effectively controlled due to multi-surface cooling of the battery core 133. The two sides of single electric core 133 have all been designed with the cold board of side, the side of single electric core 133 can be first heat dissipation cold plate 150, also can be third heat dissipation cold plate 190, the side cold plate is fixed at the lateral wall mating surface of end plate 131, both can bond through the structural adhesive, the side cold plate can act as the curb plate of electric core 133 module, promote the intensity of whole electric core 133 module, third heat dissipation cold plate 190 is fixed through the clamping force between two rows of electric cores 133, end plate 131 design has keep away position recess 135, be used for with the cooperation between the cold board of third heat dissipation 190, in order to promote the intensity of module and compensate the tolerance between every spare part, can all scribble heat conduction structural adhesive between electric core 133 and the cold board. The side surface of the battery module 130 is also designed with side surface heat insulation cotton, thereby improving the heat insulation capability of the battery module 130.
In this embodiment, the battery case 110 integrates a side cooling plate and a bottom cooling plate, the bottom plate 115 is designed at the bottom of the second heat dissipation cooling plate 170 to protect the second heat dissipation cooling plate 170, and the connection pipe 137 can connect the inlet and outlet of the first heat dissipation cooling plate 150, the inlet and outlet of the third heat dissipation cooling plate 190, the first outlet connector and the second outlet connector together, thereby forming a liquid cooling system. In order to improve the heat insulation performance of the whole battery system, a non-contact design is performed between the second heat-dissipating cold plate 170 and the case 110, the second heat-dissipating cold plate 170 is in direct contact with the fixing boss 175 on the cold plate, and the heat of the second heat-dissipating cold plate 170 is not directly transferred to the fixing beam 173, but is transferred to the fixing beam 173 through the fixing boss 175. Further, in order to improve the heat insulation performance, the present embodiment is designed with a receiving groove 119 on the inner surface of the periphery of the receiving frame 111, for adhering the heat insulation layer 117 to the heat insulation layer 117.
In summary, this embodiment provides a battery thermal management system 100, the side wall of the battery module 130 is provided with the first heat dissipation cold plate 150, the side wall of the battery module 130 is cooled by the first heat dissipation cold plate 150, the second heat dissipation cold plate 170 is further provided in the case 110, the bottom wall of the battery module 130 is cooled by the second heat dissipation cold plate 170, and meanwhile, the third heat dissipation cold plate 190 is further provided in the middle of the battery module 130, so that the common heat dissipation of the side wall and the bottom wall of the battery module 130 is realized, the heat dissipation area is greatly improved, the heat dissipation effect is better, and the temperature of the battery core 133 can be effectively controlled. In addition, the heat insulation layer 117 is attached to the inner wall of the accommodating frame 111 in this embodiment, so that good heat insulation performance can be achieved. The battery thermal management system 100 provided in this embodiment can dissipate heat from the side wall and the bottom wall of the battery module 130, has a good heat dissipation effect, can avoid the heat generated by the battery core 133 to exceed the refrigerating capacity of the cooling system under the condition of high-rate continuous charging, avoids the battery core 133 to exceed the allowable maximum temperature, and prolongs the service life of the battery core 133. Meanwhile, the heat preservation effect is good, the temperature of the battery core 133 can be kept in a low-temperature environment, and other heating modes are avoided, so that the endurance mileage of the whole vehicle is improved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a battery thermal management system, its characterized in that, includes box (110) and battery module (130), battery module (130) holding is in box (110), the lateral wall of battery module (130) is provided with first heat dissipation cold plate (150), first heat dissipation cold plate (150) set up in box (110) for right the lateral wall of battery module (130) dispels the heat, box (110) still are provided with second heat dissipation cold plate (170), second heat dissipation cold plate (170) set up the bottom side of battery module (130) is used for right the diapire of battery module (130) dispels the heat.
2. The battery thermal management system according to claim 1, wherein the battery module (130) comprises an end plate (131) and at least two electric cells (133), a plurality of the electric cells (133) are arranged in parallel, the end plate (131) is arranged at the end parts of the electric cells (133) and is connected with the case (110), and the first heat dissipation cold plates (150) are arranged at the two ends of the end plate (131) and are attached to the side walls of the corresponding electric cells (133).
3. The battery thermal management system according to claim 2, further comprising a third heat-dissipating cold plate (190), wherein the third heat-dissipating cold plate (190) is disposed between two adjacent cells (133), and both sides of the third heat-dissipating cold plate (190) are respectively attached to the side walls of two adjacent cells (133).
4. A battery thermal management system according to claim 3, wherein the end plate (131) is provided with a clearance groove (135), and the third heat dissipation cold plate (190) is clamped and mounted on the clearance groove (135).
5. A battery thermal management system according to claim 3, wherein a connecting pipeline (137) is further arranged between the end of the third heat-dissipating cold plate (190) and the end of the first heat-dissipating cold plate (150), the connecting pipeline (137) connects the third heat-dissipating cold plate (190) and the first heat-dissipating cold plate (150) in series, and a first inlet joint and a first outlet joint are further arranged on the case (110), and the connecting pipeline (137) is connected with the first inlet joint and the first outlet joint at the same time.
6. The battery thermal management system according to claim 1, wherein the case (110) includes a receiving frame (111), a top cover (113) and a bottom plate (115), the bottom plate (115) is disposed at the bottom of the receiving frame (111), the second heat-dissipating cold plate (170) is disposed on the bottom plate (115), the top cover (113) is disposed at the top of the receiving frame (111), a heat-conducting layer (171) is further disposed on the second heat-dissipating cold plate (170), and two sides of the heat-conducting layer (171) are respectively attached to the second heat-dissipating cold plate (170) and the battery module (130).
7. The battery thermal management system according to claim 6, wherein an insulation layer (117) is attached to the inside of the housing frame (111), the insulation layer (117) being disposed opposite to the side wall of the battery module (130).
8. The battery thermal management system according to claim 7, wherein a receiving groove (119) is formed on the inner side of the receiving frame (111), and the heat insulating layer (117) is embedded in the receiving groove (119).
9. The battery thermal management system according to claim 6, wherein a bottom of the receiving frame (111) is further provided with a fixing beam (173), both ends of the fixing beam (173) are respectively connected to opposite side walls of the receiving frame (111), and the battery module (130) is detachably mounted on the fixing beam (173).
10. The battery thermal management system according to claim 9, wherein a bottom side of the fixing beam (173) is provided with a fixing boss (175), and the fixing boss (175) abuts against the second heat-dissipating cold plate (170) so that the second heat-dissipating cold plate (170) is spaced apart from the fixing beam (173).
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| CN202222567981.0U CN219419158U (en) | 2022-09-27 | 2022-09-27 | Battery thermal management system |
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| CN202222567981.0U CN219419158U (en) | 2022-09-27 | 2022-09-27 | Battery thermal management system |
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| CN219419158U true CN219419158U (en) | 2023-07-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118263568A (en) * | 2024-05-29 | 2024-06-28 | 天津力神新能源科技有限公司 | Battery module and energy storage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118263568A (en) * | 2024-05-29 | 2024-06-28 | 天津力神新能源科技有限公司 | Battery module and energy storage device |
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Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
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