CN214625166U - Ultrahigh-power module heat dissipation structure and battery pack - Google Patents
Ultrahigh-power module heat dissipation structure and battery pack Download PDFInfo
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- CN214625166U CN214625166U CN202120302990.XU CN202120302990U CN214625166U CN 214625166 U CN214625166 U CN 214625166U CN 202120302990 U CN202120302990 U CN 202120302990U CN 214625166 U CN214625166 U CN 214625166U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a module heat radiation structure and battery package of ultrahigh power, including battery module and radiator, the battery module is piled up by a plurality of electric cores and is formed, be equipped with the busbar on the utmost point ear of battery module, the radiator is located the busbar surface, the busbar with be equipped with insulating heat-conducting device between the radiator, be equipped with the heat-conducting piece between the two adjacent electric cores. The utility model discloses a module heat radiation structure of ultra-high power sets up insulating heat conduction device on the surface of the busbar of battery module, sets up the radiator on insulating heat conduction device, has realized the heat dissipation to the busbar, sets up the heat-conducting piece simultaneously between adjacent electric core, has realized the heat dissipation to electric core, dispels the heat through electric core and two positions of busbar that mainly concentrate the heat in the battery module, has solved the heat dissipation problem of ultra-high power battery module.
Description
Technical Field
The utility model belongs to the technical field of the battery module heat dissipation, concretely relates to module heat radiation structure and battery package of super high power.
Background
To the battery module of ultrahigh power, superstrong electric current can arouse the drastic change of busbar temperature, in case the temperature exceedes the critical point and very easily makes electric core utmost point ear glue melt, leads to electric core to reveal to produce the hidden danger of conflagration. Meanwhile, the temperature difference of the module is too large for a long time, and the service life of the battery cell is shortened to a great extent. Another one of module structure generates heat the source and is exactly electric core, but when structural design, electric core generally piles up to arrange and places, hardly directly carries out heat dissipation design to electric core and handles. For an ultrahigh-power battery, natural heat dissipation cannot meet the heat dissipation requirement of the ultrahigh-power battery, and the ultrahigh-power battery needs to be subjected to auxiliary heat dissipation, so that how to effectively control the temperature rise and the temperature difference of a module is very important for the design of the module.
Chinese patent CN110556607A discloses a battery module, which includes a plurality of battery cells, a bus bar and a heat conducting member, wherein each of the battery cells is provided with a tab, the tab is connected to the bus bar, and the heat conducting member is attached to the tab or the bus bar. Compared with the prior art, the heat dissipation structure is simple and reasonable in structure, heat dissipation is performed through the lugs, heat dissipation is uniform, and the heat dissipation effect is obvious. In addition, the invention also provides a battery pack which comprises at least one battery module and a cooling system for cooling the battery module, wherein heat generated by the battery module is quickly transferred to the cooling system of the battery pack through the heat conducting piece, so that more direct and quick heat dissipation is realized.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problem among the prior art, the utility model provides a module heat radiation structure and battery package of ultrahigh power through set gradually insulating heat conduction device and radiator on the busbar of battery module, sets up the conducting strip simultaneously between the electric core of battery module, has realized dispelling the heat when busbar and electric core, and the module of solving ultrahigh power is difficult to radiating problem.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
the utility model discloses an aspect provides a module heat radiation structure of ultrahigh power, including battery module and radiator, the battery module is piled up by a plurality of electric cores and is formed, be equipped with the busbar on the utmost point ear of battery module, the radiator is located the busbar surface, the busbar with be equipped with insulating heat-conducting device between the radiator, be equipped with the heat-conducting piece between the two adjacent electric cores.
As an optional implementation manner, in the utility model provides an among the module heat radiation structure of ultrahigh power, insulating heat-transfer device is heat conduction silica gel piece, heat conduction silica gel piece with the contact surface of busbar and/or radiator is equipped with the insulating film for further strengthen insulating effect.
As an optional implementation manner, the utility model provides an among the module heat radiation structure of ultrahigh power, the radiator is heat pipe level temperature-uniforming plate, inlay on the heat pipe temperature-uniforming plate and be equipped with the fin for further reinforcing heat dissipation temperature-uniforming effect.
As an optional implementation manner, in the utility model provides an ultrahigh power module heat radiation structure, the radiator surface is equipped with insulating radiating material layer for further strengthen insulating radiating effect.
As an optional implementation manner, in the ultra-high power module heat dissipation structure provided by the present invention, the heat sink is an aluminum or copper heat sink.
As an optional implementation manner, the utility model provides an among the module heat radiation structure of ultrahigh power, the radiator is the liquid cooling board, be equipped with coolant in the liquid cooling board.
As an optional implementation manner, in the utility model provides an ultra-high power module heat radiation structure, the liquid cooling board buries one of the copper pipe mode for punching press welding formula, inflation formula, bottom plate.
As an optional implementation manner, in the ultra-high power module heat dissipation structure provided by the present invention, the heat conducting member is one of an aluminum heat conducting fin or a heat pipe-level temperature equalizing plate.
As an optional implementation manner, in the utility model provides an ultra-high power module heat radiation structure, electric core with be equipped with the heat conduction glue between the heat-conducting piece for reduce the thermal resistance.
As an optional implementation manner, the utility model provides an among the module heat radiation structure of ultrahigh power, with battery module one side that the busbar is relative has set gradually insulating heat-transfer device and radiator for realize automatic assembly.
As an optional implementation mode, in the utility model provides an among the module heat radiation structure of ultrahigh power, be located the radiator of battery module both sides with the connection can be dismantled to the heat-conducting piece, has both saved the spare part quantity of module, has strengthened the bulk strength of module simultaneously.
The utility model discloses the second aspect provides a battery package, the battery module includes foretell super high power's module heat radiation structure.
The working principle is as follows:
the utility model discloses set up insulating heat-transfer device on the surface of busbar, set up the radiator on insulating heat-transfer device, realized the heat dissipation to the busbar, set up the heat-conducting piece simultaneously between adjacent electric core, realized the heat dissipation to electric core, above-mentioned heat abstractor combined action, two main units that generate heat have realized the heat dissipation in the battery module to super high power, and simultaneously, set gradually insulating heat-transfer device and radiator in relative battery module one side of busbar, the radiator of both sides is fixed through the heat-conducting piece, a complete heat dissipation route has been formed.
The utility model discloses beneficial effect as follows:
(1) the utility model discloses a module heat radiation structure of ultrahigh power sets up insulating heat conduction device on the surface of the busbar of battery module, sets up the radiator on insulating heat conduction device, has realized setting up the heat-conducting piece between adjacent electric core simultaneously to the heat dissipation of busbar, has realized the heat dissipation to electric core.
(2) In the ultrahigh-power module radiating structure, the insulating film is arranged on one surface or two surfaces of the heat-conducting silica gel sheet, so that the insulating effect is enhanced; meanwhile, the radiator is provided with a heat pipe level temperature equalizing plate, and fins are embedded in the temperature equalizing plate, so that the heat dissipation and temperature equalizing effects are further enhanced.
(3) The utility model discloses an among the module heat radiation structure of ultrahigh power, when not having sealed requirement to the box, the radiator can be for the forced air cooling heat dissipation, can be for the liquid cooling heat dissipation when the box needs to seal, has increased the alternative of radiator.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation device disclosed in this embodiment;
fig. 2 is a schematic diagram of a heat pipe-level temperature equalization plate structure disclosed in this embodiment;
fig. 3 is a schematic structural view of another heat dissipation device disclosed in this embodiment;
fig. 4 is a schematic view of a position structure of a heat conducting member disclosed in the present embodiment;
fig. 5 is an exploded view of the heat dissipation device of a battery module according to the present embodiment;
the above reference numerals:
1. a battery module; 2. a heat sink; 3. an insulating heat conducting device; 4. a heat conductive member;
11. an electric core; 12. a bus bar;
21. a heat pipe-level vapor chamber; 22. a fin; 23. and (4) liquid cooling the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the ultra-high power battery module structure, heat is mainly concentrated on two positions of an electric core and a bus bar, and the battery module can be radiated from the two aspects.
As shown in fig. 1-5, a first aspect of this embodiment provides an ultrahigh power module heat dissipation structure, which includes a battery module 1 and a heat sink 2, where the battery module 1 is formed by stacking a plurality of battery cells 11, a bus bar 12 is disposed on a tab of the battery module 1, the heat sink 2 is disposed on a surface of the bus bar 12, an insulating heat conduction device 3 is disposed between the bus bar 12 and the heat sink 2, and a heat conduction member 4 is disposed between two adjacent battery cells 11.
As a further improved technical scheme, the insulating heat conducting device 3 is a heat conducting silica gel sheet, and an insulating film is arranged on a contact surface of the heat conducting silica gel sheet and the bus bar 12 and/or the heat sink 2.
In the specific implementation process, the heat-conducting silicone sheet is directly attached to the bus bar 12, and plays roles of transferring heat and insulating, and in order to further enhance the insulating role, an insulating film may be added to one side or both sides of the heat-conducting silicone sheet.
As a further improved technical solution, the heat sink 2 is an aluminum or copper heat sink, and further, the heat sink 2 is a heat pipe-level temperature-equalizing plate 21, and fins 22 are embedded on the heat pipe-level temperature-equalizing plate. The surface of the radiator 2 is provided with an insulating radiating material layer.
In the present embodiment, if there is no sealing requirement for the case of the battery module 1, air-cooling heat dissipation may be considered preferentially, so that the heat sink 2 may be made of a common aluminum or copper heat sink 2, and in order to further enhance the heat dissipation and temperature equalization effect, the heat sink 2 may employ a heat pipe-level temperature equalization plate 21, and fins 22 are embedded on the heat pipe-level temperature equalization plate 21, as shown in fig. 2. In order to further enhance the insulating and heat dissipating effect, the surface of the heat sink may be coated with a layer of insulating and heat dissipating material.
As the further improved technical scheme, the radiator 2 is a liquid cooling plate 23, a cooling medium is arranged in the liquid cooling plate 23, and the liquid cooling plate 23 is in one of a stamping welding type, a blowing type and a bottom plate copper pipe embedding type.
In other embodiments, if the box of the battery module 1 needs to be sealed, the heat sink 2 may be a liquid-cooling plate 23, as shown in fig. 3, the liquid-cooling plate 23 is filled with a cooling medium, and the heat of the bus bar 12 is taken away by the continuous circulation flow of the cooling medium. The liquid cooling plate 23 can adopt various modes according to the actual structure and the heat dissipation capacity, and the common modes can adopt the schemes of stamping and brazing, blowing and expanding, a bottom plate copper tube type and the like.
As a further improved technical scheme, the heat conducting member 4 is one of an aluminum heat conducting fin or a heat pipe-level temperature-equalizing plate; and a heat-conducting glue is arranged between the electric core 11 and the heat-conducting piece 4 and used for reducing thermal resistance.
In the specific implementation process, battery module 1 is when the structural design, electric core 11 generally piles up the range and places, it is difficult directly to carry out the heat dissipation design processing to electric core 11, need change electric core 11's heat conduction path, consequently, set up heat-conducting piece 4 between two adjacent electric cores 11, the heat that electric core 11 sent just can conduct to the module surface through heat-conducting piece 4, in this embodiment, heat-conducting piece 4 can adopt aluminium system conducting strip, for reinforcing heat dissipation samming effect, also can adopt heat pipe level samming board or other high heat conduction materials to bend, for reducing the thermal resistance, can brush one deck heat-conducting glue between electric core 11 and heat-conducting piece 4. After the unit combination composed of the plurality of battery cells 11 and the heat conducting member 4, the battery cells 11 of the battery module 1 may be cooled, as shown in fig. 1.
As the technical scheme of further improvement, the battery module 1 side that the busbar 12 is relative is provided with insulating heat conduction device 3 and radiator 2 in proper order for realize automatic assembly, and the radiator 2 that is located battery module 1 both sides can be dismantled with heat-conducting piece 4 and be connected.
In the specific implementation process, as shown in fig. 5, when the modules are assembled into a group, in order to realize automatic assembly, opposite sides of the insulating heat conduction device 3 and the heat sink 2, namely, one side of the module opposite to the bus bar 12, are already arranged in the battery module 1, the insulating heat conduction device 3 and the heat sink 2 are also arranged, during assembly, threaded holes are arranged on an outer frame of the heat conduction member 4, meanwhile, through holes are formed in corresponding positions of the heat sink 2, two sides of the battery module 1 are clamped by the heat sink 2 and then locked by bolts, so that a complete heat dissipation path is formed, and the heat sink 2 and the heat conduction member 4 are connected into a component. Not only saves the number of parts of the module, but also enhances the overall strength of the module.
A second aspect of the present invention provides a battery pack, including the ultrahigh-power module heat dissipation structure.
The working principle is as follows:
the utility model discloses set up insulating heat-transfer device on the surface of busbar, set up the radiator on insulating heat-transfer device, realized the heat dissipation to the busbar, set up the heat-conducting piece simultaneously between adjacent electric core, realized the heat dissipation to electric core, above-mentioned heat abstractor combined action, two main units that generate heat have realized the heat dissipation in the battery module to super high power, and simultaneously, set gradually insulating heat-transfer device and radiator in relative battery module one side of busbar, the radiator of both sides is fixed through the heat-conducting piece, a complete heat dissipation route has been formed.
The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments disclosed herein. To the utility model belongs to the field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. The utility model provides a module heat radiation structure of ultrahigh power, includes battery module and radiator, the battery module is piled up by a plurality of electric cores and is formed, be equipped with the busbar on the utmost point ear of battery module, its characterized in that, the radiator is located the busbar surface, the busbar with be equipped with insulating heat-conducting device between the radiator, be equipped with the heat-conducting piece between two adjacent electric cores.
2. The ultra-high power module heat dissipation structure according to claim 1, wherein the insulating and heat conducting device is a heat conducting silicone sheet, and an insulating film is disposed on a contact surface of the heat conducting silicone sheet and the bus bar and/or the heat sink.
3. The ultra-high power module heat dissipation structure as claimed in claim 1, wherein the heat sink is a heat pipe-grade vapor chamber, and fins are embedded on the heat pipe-grade vapor chamber.
4. The ultra-high power modular heat dissipation structure as claimed in any one of claims 1-3, wherein the surface of the heat sink is provided with a layer of insulating heat dissipation material.
5. The ultra-high power module heat dissipation structure as claimed in claim 1, wherein the heat sink is an aluminum or copper heat sink.
6. The ultra-high power module heat dissipation structure as claimed in claim 1, wherein the heat sink is a liquid-cooled plate, and a cooling medium is disposed in the liquid-cooled plate.
7. The ultra-high power module heat dissipation structure of claim 1, wherein the heat conducting member is one of an aluminum heat conducting sheet or a heat pipe-grade vapor chamber, and a heat conducting glue is disposed between the battery cell and the heat conducting member.
8. The ultra-high power module heat dissipation structure as recited in claim 1, wherein an insulating heat conduction device and a heat sink are sequentially disposed on a side of the battery module opposite to the bus bar.
9. The ultra-high power module heat dissipation structure as claimed in claim 8, wherein the heat sinks located at both sides of the battery module are detachably connected to the heat conductive member.
10. A battery pack, wherein the battery module comprises the ultra-high power module heat dissipation structure as recited in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120302990.XU CN214625166U (en) | 2021-02-03 | 2021-02-03 | Ultrahigh-power module heat dissipation structure and battery pack |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120302990.XU CN214625166U (en) | 2021-02-03 | 2021-02-03 | Ultrahigh-power module heat dissipation structure and battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117673541A (en) * | 2022-08-24 | 2024-03-08 | 比亚迪股份有限公司 | Battery pack and vehicle |
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- 2021-02-03 CN CN202120302990.XU patent/CN214625166U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117673541A (en) * | 2022-08-24 | 2024-03-08 | 比亚迪股份有限公司 | Battery pack and vehicle |
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Effective date of registration: 20230426 Granted publication date: 20211105 |