CN219716984U - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN219716984U CN219716984U CN202320611556.9U CN202320611556U CN219716984U CN 219716984 U CN219716984 U CN 219716984U CN 202320611556 U CN202320611556 U CN 202320611556U CN 219716984 U CN219716984 U CN 219716984U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- plate
- battery module
- battery
- cell group
- 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
- 230000017525 heat dissipation Effects 0.000 claims abstract description 121
- 238000001816 cooling Methods 0.000 claims description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009423 ventilation Methods 0.000 description 18
- 230000009286 beneficial effect Effects 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery module and a battery pack, wherein the battery module comprises: a case; the battery cell group is positioned in the box body; the heat dissipation plate is positioned between the battery cell group and the bottom of the box body; and a heat dissipation air channel is formed between the heat dissipation plate and the bottom of the box body, and a vent opening opposite to the heat dissipation air channel is arranged on the box body. The battery module and the battery pack provided by the utility model can improve the heat dissipation effect of the battery module and prolong the service life of the battery module.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery module and a battery pack.
Background
With the development of lithium ion batteries, the production technology of lithium ion batteries is continuously improved, the cost is continuously reduced, and the lithium ion batteries are widely applied to various fields, such as energy storage power supply systems of hydraulic power, firepower, wind power, solar power stations and the like, and various fields of electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment, aerospace and the like.
The lithium battery module is formed by combining and packaging a plurality of lithium ion cells in a series-parallel connection mode, and a large amount of heat can be generated in the use process of the lithium battery module, however, the natural heat dissipation effect of the lithium battery module is poor, the temperature of the battery module is easy to be higher, and the service life of the battery can be reduced when the lithium battery module works at high temperature for a long time.
Disclosure of Invention
The embodiment of the utility model provides a battery module and a battery pack, which can improve the heat dissipation effect of the battery module and prolong the service life of the battery module.
An embodiment of the present utility model provides a battery module including:
a case;
the battery cell group is positioned in the box body;
the heat dissipation plate is positioned between the battery cell group and the bottom of the box body;
and a heat dissipation air channel is formed between the heat dissipation plate and the bottom of the box body, and a vent opening opposite to the heat dissipation air channel is arranged on the box body.
In an embodiment, the heat dissipation plate includes a main board and a plurality of heat dissipation fins, the heat dissipation fins are located at one side of the main board facing the bottom of the box body and are arranged at intervals, and a channel through which cooling air passes is formed between adjacent heat dissipation fins and the main board and the bottom of the box body.
In an embodiment, the heat dissipation fins extend along a length direction of the battery cell group, and the plurality of heat dissipation fins are arranged along a width direction of the battery cell group.
In an embodiment, the heat dissipation fins extend along a width direction of the battery cell group, and the plurality of heat dissipation fins are arranged along a length direction of the battery cell group.
In one embodiment, the radiating fins and the main board are arranged at an angle a, and the angle a is more than 0 degrees and less than or equal to 90 degrees.
In an embodiment, the heat dissipation plate further includes a connection board disposed on at least one side of the motherboard, and the connection board is connected to the battery cell group.
In an embodiment, the connection plates are located on two opposite sides of the main board and perpendicular to the main board, the main board and the connection plates form a groove, and the battery cell assembly is assembled in the groove.
In an embodiment, the two ventilation openings are oppositely arranged and are positioned at two ends of the heat dissipation air duct.
In an embodiment, the battery module further includes a fan, and the fan is located at a side of one of the ventilation openings away from the heat dissipation plate.
The embodiment of the utility model also provides a battery pack comprising the battery module.
The embodiment of the utility model has the beneficial effects that:
in the battery module, a heat dissipation plate with good heat conductivity is arranged between the battery cell group and the bottom of the box body, a heat dissipation air channel is formed between the heat dissipation plate and the bottom of the box body, a vent opening opposite to the heat dissipation air channel is arranged on the box body, cooling air is directly led into the heat dissipation air channel through the vent opening, air convection is carried out, and the cooling air takes away heat conducted by the heat dissipation plate. In the utility model, the ventilation opening is directly opposite to the heat dissipation air duct formed by the heat dissipation plate and the box body, which is beneficial to air convection, improves heat dissipation efficiency and prolongs the service life of the battery module.
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 description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a battery module according to an embodiment of the present utility model;
fig. 2 is a side view of a battery module according to an embodiment of the present utility model;
fig. 3 is a schematic diagram illustrating an assembly structure of a battery cell set and a heat dissipation plate of a battery module according to an embodiment of the utility model.
Fig. 4 is a schematic diagram of a heat dissipation plate of a battery module according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The technical scheme of the utility model is further described below by means of specific embodiments in combination with the accompanying drawings.
The utility model provides a battery module, comprising: a case 100; the battery cell group 200 is positioned in the box body 100; a heat dissipation plate 300 located between the battery cell 200 and the bottom of the case 100; a heat dissipation air duct 110 is formed between the heat dissipation plate 300 and the bottom of the box 100, and a vent 120 opposite to the heat dissipation air duct 110 is disposed on the box 100.
Specifically, as shown in fig. 1-2, a schematic structural diagram and a side view of a battery module according to an embodiment of the present utility model are provided.
The box 100 includes a bottom plate 101, a top plate 102 and a side plate 103, the bottom plate 101, the top plate 102 and the side plate 103 enclose to form a cavity, the battery cell group 200 is disposed in the cavity, and the box 100 is used for supporting and protecting the battery cell group 200.
The battery cell group 200 includes a plurality of parallel battery cells 210, the plurality of battery cells 210 are fixed together by bundling or adhesive bonding to form the battery cell group 200, the plurality of battery cells 210 are bundled to prevent the battery cells 210 from loosening, and simultaneously the plurality of battery cells 210 are fixed together, so that the overall volume of the battery module can be reduced. The battery cell group 200 includes a top 201 and a bottom 202, the top 201 of the battery cell group 200 is a side connected with the tab 220, and the bottom 202 of the battery cell group 200 is a side opposite to the tab 220.
The heat dissipation plate 300 is disposed between the bottom 202 of the battery pack 200 and the bottom of the case 100 (i.e., the bottom plate 101 of the case 100), and a channel through which cooling air passes, i.e., the heat dissipation air duct 110 is formed between the heat dissipation plate 300 and the bottom plate 101 of the case 100. The heat dissipation plate 300 has good heat conduction performance, in the use process of the battery module, heat generated by the battery cell group 200 is conducted to the heat dissipation plate 300, the heat dissipation plate 300 is in contact with cooling air to achieve heat dissipation of the battery cell group 200, and the heat dissipation effect of the battery module can be effectively improved by using the heat dissipation plate 300. In this embodiment, the case 100 is provided with the ventilation opening 120, and the ventilation opening 120 is disposed opposite to the heat dissipation air duct 110, which is favorable to air convection in the heat dissipation air duct 110, and improves heat dissipation efficiency, so as to prolong the service life of the battery module.
In an embodiment, the heat dissipating plate 300 includes a main board 310 and a plurality of heat dissipating fins 320, where the heat dissipating fins 320 are located on one side of the main board 310 facing the bottom of the case 100 and are spaced apart, and a channel 340 through which cooling air passes is formed between adjacent heat dissipating fins 320.
Specifically, as shown in fig. 4, in order to increase the heat dissipation area of the heat dissipation plate, a plurality of heat dissipation fins 320 are disposed on a side of the main board 310 facing the bottom board 101 of the case 100, and the heat dissipation fins 320 are metal sheets. The side of the heat dissipation fin 320 away from the main board 310 is in contact with the bottom board 101 of the case 100, and the heat of the heat dissipation fin 320 can be conducted to the case 100 by the direct contact of the heat dissipation fin 320 with the case 100 to achieve heat dissipation. And a channel 340 through which cooling air passes, that is, the cooling air duct 110 is formed between the adjacent cooling fins 320, the main board 310 and the bottom board 101 of the box 100, and when the cooling air passes through the channel 340, the cooling fins 320 contact with the cooling air, so that the cooling air takes away more heat, thereby being beneficial to improving the heat dissipation effect of the heat dissipation plate 300.
In an embodiment, the heat dissipation fins 320 extend along the length direction of the battery cell set 200, and the plurality of heat dissipation fins 320 are arranged along the width direction of the battery cell set 200, so that heat dissipation is uniformly performed at various places at the bottom of the battery cell set 200, and the temperature difference is reduced.
As shown in fig. 3, the length direction of the battery cell group 200 is the extending direction in which the thicknesses of the plurality of battery cells 210 are overlapped, i.e., the X direction in fig. 3, and the width direction of the battery cell group 200 is the length direction of the battery cells 210, i.e., the Y direction in fig. 3. The heat dissipation fins 320 are of a linear metal sheet structure, the heat dissipation fins 320 extend along the length direction (X direction) of the battery cell group 200, and a plurality of heat dissipation fins 320 are arranged in parallel and at intervals along the width direction (Y direction) of the battery cell group 200, so that parallel linear channels 340 are formed between adjacent heat dissipation fins 320, which is beneficial to air convection in the channels 340 and improves heat dissipation efficiency.
In another embodiment, the heat dissipation fins 320 may be configured such that the heat dissipation fins 320 extend in the width direction (Y direction) of the battery cell group 200, and a plurality of the heat dissipation fins 320 are aligned in the length direction (X direction) of the battery cell group 200.
It should be noted that, the heat dissipation fins 320 may be disposed on the main board 310 in a straight line, a zigzag line, or a curved line, and the heat dissipation fins 320 may be disposed parallel to or inclined to the side of the main board 310, which is not limited herein.
In one embodiment, the heat dissipation fins 320 are disposed at an angle a with respect to the main board 310, and 0 ° < a+.ltoreq.90°. That is, the plane of the heat dissipation fin 320 is inclined or perpendicular to the plane of the main board 310, in this embodiment, it is preferable that the heat dissipation fin 320 is perpendicular to the main board 310, so that a rectangular channel 340 is formed between the main board 310, the heat dissipation fin 320 and the bottom board 101 of the box 100, which is beneficial to reducing the resistance of the cooling air passing through the channel 340 and improving the heat dissipation efficiency.
In an embodiment, the heat dissipating plate 300 further includes a connection plate 330 disposed on at least one side of the main board 310, and the connection plate 330 is connected to the battery cell group 200. When the heat dissipation plate 300 is assembled to the battery cell group 200, the main board 310 of the heat dissipation plate 300 is opposite to the bottom 202 of the battery cell group 200, and the connection plate 330 is located on the side surface of the battery cell group 200 and is fixedly connected to the battery cell group 200. The connection plate 330 may be fixedly connected to the cell stack 200 by a screw, or may be fixedly connected to the cell stack 200 by an adhesive. The connection plate 330 may be disposed at one side, two sides, three sides, or four sides of the main board 310, and is not particularly limited in the present utility model.
In one embodiment, the connection plates 330 are disposed on two opposite sides of the main board 310 and perpendicular to the main board 310, the main board 310 and the connection plates 330 form a groove, and the battery cell group 200 is assembled in the groove.
Specifically, as shown in fig. 4, the main board 310 includes a first side and a second side opposite to each other, the first side is provided with a first connection plate 331, the second side is provided with a second connection plate 332, the first connection plate 331 and the second connection plate 332 are perpendicular to the main board 310 and extend towards the direction of the battery cell group 200, the main board 310 is connected with the first connection plate 331 and the second connection plate 332 to form a U-shaped groove, and when the heat dissipation plate 300 is assembled with the battery cell group 200, the bottom 202 of the battery cell group 200 is inserted into the groove. The connection plates 330 are disposed on two opposite sides of the main board 310, on one hand, the first connection plate 331 and the second connection plate 332 may be used to be fixedly connected with the battery cell group 200, on the other hand, the battery cell group 200 is clamped between the first connection plate 331 and the second connection plate 332, so that the battery cell group 200 may be fixed, and the battery cells 210 of the battery cell group 200 are prevented from loosening.
In one embodiment, the material of the heat dissipating plate 300 is a material with better heat dissipation performance, such as an aluminum plate, a copper plate, a nickel plate, a galvanized steel plate, a stainless steel plate, or an alloy plate. In order to improve the heat dissipation effect of the heat dissipation plate 300, in this embodiment, the heat dissipation plate 300 is made of an aluminum plate. The main board 310, the connecting board 330 and the radiating fins 320 of the radiating plate 300 may be assembled from different aluminum plates, or may be an integrally formed structure of aluminum plates.
In an embodiment, the ventilation openings 120 include two ventilation openings 120, and the two ventilation openings 120 are disposed opposite to each other and located at two ends of the heat dissipation air duct 110.
As shown in fig. 1-2, the side plates 103 of the case 100 include a first side plate 1031 and a second side plate 1032 that are opposite, the first side plate 1031 and the second side plate 1032 are perpendicular to the length direction (X direction) of the battery cell group 200, the heat dissipation fins 320 are disposed along the length direction of the battery cell group 200, the heat dissipation air duct 110 is disposed along the length direction of the battery cell group 200, one end of the heat dissipation air duct 110 is an air inlet, the other end of the heat dissipation air duct 110 is an air outlet, a first ventilation opening 121 that is opposite to the air inlet is provided on the first side plate 1031 of the case 100, a second ventilation opening 122 that is opposite to the air outlet is provided on the second side plate 1032 of the case 100, and cooling air is input into the heat dissipation air duct 110 through the first ventilation opening 121 to exchange heat with the main board 310 and the heat dissipation fins 320, and then is output from the second ventilation opening 122. The first ventilation openings 121 and the second ventilation openings 122 are arranged opposite to each other and opposite to the air inlet and the air outlet of the heat dissipation air duct 110, which is beneficial to air convection in the heat dissipation air duct 110 and improves heat dissipation efficiency.
In one embodiment, the battery module further includes a fan located at a side of one of the ventilation openings 120 away from the heat dissipation plate 300. The fan is located outside the box 100 and fixed on the side plate 103 of the box 100, and the air outlet of the fan is aligned to one of the ventilation openings 120, so as to provide cooling air for the heat dissipation air duct 110, and the cooling air is used to take away the heat of the heat dissipation plate 300 and output from the other ventilation opening 120, so as to realize heat exchange.
The embodiment of the utility model also provides a battery pack comprising the battery module. Specifically, the battery pack has a battery case, and a plurality of battery modules as described in the above embodiments are disposed in the battery case.
In the utility model, a heat dissipation plate with good heat conductivity is arranged between the battery cell group and the bottom of the box body, so that a heat dissipation air channel is formed between the heat dissipation plate and the bottom of the box body, a vent opening opposite to the heat dissipation air channel is arranged on the box body, cooling air is directly led into the heat dissipation air channel through the vent opening, air convection is carried out, and the cooling air takes away heat conducted by the heat dissipation plate. In the utility model, the ventilation opening is directly opposite to the heat dissipation air duct formed by the heat dissipation plate and the box body, which is beneficial to air convection, improves heat dissipation efficiency and prolongs the service life of the battery module.
The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (10)
1. A battery module, comprising:
a case;
the battery cell group is positioned in the box body;
the heat dissipation plate is positioned between the battery cell group and the bottom of the box body;
and a heat dissipation air channel is formed between the heat dissipation plate and the bottom of the box body, and a vent opening opposite to the heat dissipation air channel is arranged on the box body.
2. The battery module according to claim 1, wherein the heat dissipation plate comprises a main plate and a plurality of heat dissipation fins, the heat dissipation fins are located at one side of the main plate facing the bottom of the case body and are arranged at intervals, and a channel through which cooling air passes is formed between adjacent heat dissipation fins and the main plate and the bottom of the case body.
3. The battery module according to claim 2, wherein the heat dissipation fins extend in a length direction of the battery cell group, and a plurality of the heat dissipation fins are arranged in a width direction of the battery cell group.
4. The battery module according to claim 2, wherein the heat dissipation fins extend in a width direction of the battery cell group, and a plurality of the heat dissipation fins are arranged in a length direction of the battery cell group.
5. The battery module according to claim 2, wherein the heat dissipation fin is disposed at an angle a with the main plate, and 0 ° < a is equal to or less than 90 °.
6. The battery module according to claim 2, wherein the heat dissipation plate further comprises a connection plate provided at least one side of the main plate, the connection plate being connected with the battery cell group.
7. The battery module of claim 6, wherein the connection plates are located on opposite sides of the main plate and perpendicular to the main plate, the main plate and the connection plates form a groove, and the battery cell assembly is assembled in the groove.
8. The battery module of any one of claims 1-7, wherein the vent comprises two vents, the two vents being disposed opposite each other and at both ends of the heat dissipation duct.
9. The battery module of claim 8, further comprising a fan located on a side of one of the vents remote from the heat sink.
10. A battery pack comprising the battery module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611556.9U CN219716984U (en) | 2023-03-23 | 2023-03-23 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320611556.9U CN219716984U (en) | 2023-03-23 | 2023-03-23 | Battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219716984U true CN219716984U (en) | 2023-09-19 |
Family
ID=88004640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320611556.9U Active CN219716984U (en) | 2023-03-23 | 2023-03-23 | Battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219716984U (en) |
-
2023
- 2023-03-23 CN CN202320611556.9U patent/CN219716984U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160149276A1 (en) | Battery module for an electric or hybrid vehicle incorporating a heat exchanger | |
| JP2013526766A (en) | Cooling member having compact structure and excellent stability, and battery module having the same | |
| CN204130659U (en) | A kind of Li-ion batteries piles | |
| CN105789733A (en) | Thermal management device and power source device | |
| WO2019001466A1 (en) | Cylindrical lithium ion battery | |
| CN111416179A (en) | Lithium ion battery thermal management device combining inner fins and forced air cooling | |
| CN200969366Y (en) | Accumulator battery for mixed motor vehicle of wind cooling forced radiating structure | |
| CN210074099U (en) | Battery module, battery pack, electric vehicle and power grid system | |
| CN210006860U (en) | Cooling plate mounting structure of storage battery and electric automobile | |
| CN219716984U (en) | Battery module and battery pack | |
| CN219086074U (en) | Battery cooling device | |
| CN213936202U (en) | High-efficiency half-piece solar module | |
| EP4273996A1 (en) | Battery cell and battery module comprising same | |
| CN214254523U (en) | Novel power battery cooling system based on heat pipe and liquid cooling combined cooling | |
| CN213026268U (en) | Battery module heat conduction structure and battery module | |
| CN209981425U (en) | Lightweight heat dissipation battery pack | |
| CN114243224A (en) | Connection structure of soft-packaged large-capacity battery cell and pole column | |
| CN211743202U (en) | Square electricity core module | |
| CN209607881U (en) | A kind of square power battery module of wind-cooling heat dissipating form | |
| CN209344283U (en) | A kind of Li-ion batteries piles with heat-transfer device | |
| CN111916873A (en) | Battery module heat conduction structure and battery module | |
| CN220984625U (en) | Air cooling structure of industrial and commercial energy storage battery module | |
| CN214254524U (en) | Novel soft packet of lithium cell cooling system based on utmost point ear is radiating | |
| CN211789158U (en) | Energy storage battery pack | |
| CN217768517U (en) | Soft package lithium ion battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |