CN218498168U - Novel immersion cooling battery package of new forms of energy battery module - Google Patents

Novel immersion cooling battery package of new forms of energy battery module Download PDF

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Publication number
CN218498168U
CN218498168U CN202222363414.3U CN202222363414U CN218498168U CN 218498168 U CN218498168 U CN 218498168U CN 202222363414 U CN202222363414 U CN 202222363414U CN 218498168 U CN218498168 U CN 218498168U
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battery pack
module
battery module
heat dissipation
new energy
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王海辉
陈哲
王乐
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Niuwashike Shanghai Technology Co ltd
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Niuwashike Shanghai Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model discloses a novel immersion cooling battery package of new forms of energy battery module relates to battery package cooling technology field, all lacks the radiating method in module top for the water-cooling and the air-cooled structure of solving current new forms of energy battery, and is the air because of the withstand voltage medium of insulation, leads to the problem of unable assurance insulation pressure resistance under extreme condition. The battery pack comprises a battery pack, a battery pack and a module fixing end plate, wherein the battery pack is provided with a plurality of fixing through holes, the module fixing end plate is arranged at the front end and the rear end of the battery module, the fixing through holes are formed in the module fixing end plate, and the battery module is fixedly connected with the inner cavity of the new energy battery pack through the fixing through holes in the module fixing end plate and fasteners; the convergence heat dissipation mechanisms are arranged on two sides of the upper surface of the battery module, and twelve convergence heat dissipation mechanisms are arranged; the bottom surface heat dissipation mechanism is arranged on the lower surface of the battery module; and the cooling oil is arranged between the new energy battery pack and the battery module.

Description

Novel immersion cooling battery package of new forms of energy battery module
Technical Field
The utility model relates to a battery package cooling technical field specifically is a novel immersion cooling battery package of new forms of energy battery module.
Background
At the present stage, power sources of new energy automobiles are all from batteries, and in order to ensure that the batteries are safely and long-term used under the conditions of high-power use, high-temperature use and charging, each enterprise designs and arranges a thermal management system in a module or a battery pack. At present, the mainstream thermal management system mainly comprises air cooling and liquid cooling.
The cooling assembly comprises a main board, one side of the main board is fixedly connected with a contact plate, a copper core is embedded and connected in the contact plate, and the copper core is connected with a copper pipe;
liquid cooling generally comprises water cooling plates which are arranged on the bottom surface or the side surface of a battery module, heat dissipation is realized through heat exchange at the bottom or the side surface of the module, for example, the publication number is CN216648440U, and a new energy battery water cooling plate structure is disclosed, wherein a water cooling plate upper cover plate is fixedly connected with a water cooling plate runner plate, a water inlet interface and a water outlet interface are arranged on the water cooling plate upper cover plate, the water cooling plate runner plate is formed by three-system aluminum punch forming, runners are arranged on the water cooling plate runner plate, are communicated with the water inlet interface and the water outlet interface, a plurality of runner convex ribs with different sizes are arranged in the runners, the battery module is contacted with the water cooling plate upper cover plate through heat-conducting gel, the heat of a battery is conducted on the water cooling plate upper cover plate through the heat-conducting gel, and the heat is taken out of the water cooling plate through the water cooling plate by cooling liquid in the water cooling plate runner plate;
however, the water-cooling and air-cooling structures lack a method for dissipating heat from the top of the battery module, and the main limitation is that most of the water-cooling or air-cooling plates are made of metal conductive materials, which conflicts with the voltage insulation and withstand of the electrically-connected busbar on the top of the battery module, and in an insulation gap, the traditional design mainly relies on air as a voltage insulation and withstand medium, but the insulation performance and the pollution level of the traditional design are related, including but not limited to temperature, humidity, impurities and the like, so that the voltage insulation and withstand cannot be guaranteed under extreme conditions; therefore, we propose a novel immersion cooling battery pack of a new energy battery module so as to solve the problems mentioned above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel immersion cooling battery package of new forms of energy battery module to the water-cooling and the air-cooling structure of the current new forms of energy battery who proposes in solving above-mentioned background all lack the radiating method in group top, and be the air because of the withstand voltage medium of insulation, lead to the problem of can't guaranteeing insulating withstand voltage performance under extreme condition.
In order to achieve the above purpose, the utility model provides a following technical scheme: a novel immersion cooling battery pack for a new energy battery module comprises a new energy battery pack, wherein a battery module is arranged in the new energy battery pack;
further comprising:
the battery pack comprises a battery pack, a battery pack and a module fixing end plate, wherein the battery pack is provided with a plurality of fixing through holes, the module fixing end plate is arranged at the front end and the rear end of the battery module, the fixing through holes are formed in the module fixing end plate, and the battery module is fixedly connected with the inner cavity of the new energy battery pack through the fixing through holes in the module fixing end plate and fasteners;
the convergence heat dissipation mechanisms are arranged on two sides of the upper surface of the battery module, and twelve convergence heat dissipation mechanisms are arranged;
the bottom surface heat dissipation mechanism is arranged on the lower surface of the battery module;
and the cooling oil is arranged between the new energy battery pack and the battery module.
Preferably, heat dissipation mechanism converges includes busbar and ripple radiating fin, ripple radiating fin is provided with a plurality ofly, and a plurality of ripple radiating fin all set up the upper surface at the busbar, and with busbar fixed connection, adjacent be provided with the ripple runner between the ripple radiating fin, the ripple radiating fin can rely on the ripple runner between the clearance, increase with the area of contact of coolant oil, improve heat exchange efficiency.
Preferably, bottom surface heat dissipation mechanism includes heat conduction bottom plate and V-arrangement baffling fin, V-arrangement baffling fin is provided with a plurality ofly, and a plurality of V-arrangement baffling fins all with the outer wall welded connection of heat conduction bottom plate, the inside of V-arrangement baffling fin is provided with V-arrangement baffling way, and when the coolant oil stream was out of date, V-arrangement baffling way and the outer wall homoenergetic of V-arrangement baffling fin contacted with the coolant oil to promote heat exchange efficiency.
Preferably, one end of the new energy battery pack is provided with an oil inlet, the other end of the new energy battery pack is provided with an oil outlet, the oil outlet is communicated with the oil inlet through a cooling oil circulating system, the cooling oil circulating system is composed of a cooling oil tank, a pump, a refrigerator and a connecting pipeline, and the cooling oil can be circularly filled into the new energy battery pack.
Preferably, the corrugated radiating fins, the heat conducting bottom plate and the V-shaped baffling fins are all made of steel-aluminum composite materials, and the steel-aluminum composite materials have high mechanical strength and heat conducting performance and improve the using effect of the radiating elements.
Preferably, the outer walls of the corrugated radiating fins, the heat-conducting bottom plate and the V-shaped baffling fins are all provided with polytetrafluoroethylene coatings, and the polytetrafluoroethylene coatings have weather resistance, high temperature resistance and corrosion resistance, so that the service life of the radiating element can be prolonged.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses an adopt the coolant oil to carry out cooling treatment to the battery package, the in-process is filled to new forms of energy battery package from the oil inlet with the coolant oil continuous by coolant oil circulation system in, the coolant oil gets into the back, with converge heat dissipation mechanism and bottom surface heat dissipation mechanism direct contact, take away the heat that battery module top high pressure coupling part and bottom distribute, and continue to flow to the oil-out, get back to the coolant oil circulation system again, refill to the new forms of energy battery package after the coolant oil circulation system refrigeration in, the continuous endless carries out cooling treatment to the battery package, reach battery module bottom and top radiating purpose simultaneously, the water-cooling and the air-cooling structure that have solved current new forms of energy battery all lack the radiating problem in module top.
2. Through adopting immersive cooling method, under the circumstances of guaranteeing former structural strength, adopt corrugated fin and V-arrangement baffling fin structure to increase the area of contact between the position that generates heat of cooling oil and electric core, and simultaneously, corrugated fin and V-arrangement baffling fin are under the unchangeable circumstances of coverage area, rely on the curved surface and the baffling effect of self, be compared in conventional fin structure and show the heat exchange rate that has improved with the cooling oil, and this cooling method compares with traditional forced air cooling and water-cooling, heat source and cold source direct contact, the thermal resistance has effectively been reduced.
3. Through adopting high insulation, high heat conductivity, the cooling oil of low viscosity characteristic is as insulating medium, mainly rely on the air as insulating withstand voltage medium because of conventional battery package insulating gap, but adopt the air as insulating medium, at electric core initial stage thermal runaway, produce the top exhaust, cause eruption object contact to top high pressure to be connected, then easily lead to the air insulation to lose efficacy and take place the secondary and strike sparks, drive the high-energy high temperature thermal runaway, there is certain potential safety hazard, therefore, adopt the insulating cooling oil that has high-efficient flow characteristic, it has better insulating characteristic by itself, and can absorb the exhaust impurity that electric core initial stage thermal runaway produced, thereby alleviate the problem of local high temperature.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the bottom structure of the present invention;
fig. 3 is a schematic structural view of the converging heat dissipation mechanism of the present invention;
FIG. 4 is a schematic structural view of the bottom heat dissipation mechanism of the present invention;
FIG. 5 is a schematic diagram of the present invention;
in the figure: 1. a new energy battery pack; 2. a battery module; 3. the module fixes the end plate; 4. a fixing through hole; 5. a converging heat dissipation mechanism; 501. a bus bar; 502. a corrugated heat-dissipating fin; 503. a corrugated flow channel; 6. a bottom surface heat dissipation mechanism; 601. a thermally conductive base plate; 602. a V-shaped baffling fin; 603. a V-shaped folded flow passage; 7. cooling oil; 8. an oil inlet; 9. an oil outlet; 10. and a cooling oil circulation system.
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.
Referring to fig. 1-5, the present invention provides an embodiment: a novel immersion type cooling battery pack for a new energy battery module comprises a new energy battery pack 1, wherein a battery module 2 is arranged inside the new energy battery pack 1;
further comprising:
the module fixing end plates 3 are arranged at the front end and the rear end of the battery module 2, a plurality of fixing through holes 4 are formed in the module fixing end plates 3, and the battery module 2 is fixedly connected with the inner cavity of the new energy battery pack 1 through the fixing through holes 4 in the module fixing end plates 3 and fasteners;
the converging heat dissipation mechanisms 5 are arranged on two sides of the upper surface of the battery module 2, and twelve converging heat dissipation mechanisms 5 are arranged;
a bottom surface heat dissipation mechanism 6 mounted on the lower surface of the battery module 2;
and the cooling oil 7 is arranged between the new energy battery pack 1 and the battery module 2.
Referring to fig. 3, the heat sink mechanism 5 includes a bus bar 501 and a plurality of corrugated fins 502, the plurality of corrugated fins 502 are disposed on the upper surface of the bus bar 501 and are fixedly connected to the bus bar 501, a corrugated flow channel 503 is disposed between adjacent corrugated fins 502, the corrugated fins 502 can increase the contact area with the cooling oil by the corrugated flow channel 503 between the gaps, and the heat sink efficiency is significantly improved under the condition that the fin coverage area is not changed.
Referring to fig. 4, the bottom heat dissipation mechanism 6 includes a heat conduction bottom plate 601 and V-shaped deflection fins 602, a plurality of V-shaped deflection fins 602 are disposed, and all the V-shaped deflection fins 602 are welded to the outer wall of the heat conduction bottom plate 601, and a V-shaped deflection channel 603 is disposed inside the V-shaped deflection fins 602, when the cooling oil flows through, both the V-shaped deflection channel 603 and the outer wall inside the V-shaped deflection fins 602 can contact the cooling oil, so as to prolong the flow time of the cooling oil and the V-shaped deflection channel 603 by virtue of the deflection effect, thereby fully taking away the heat dissipated by the V-shaped deflection fins 602.
Referring to fig. 5, an oil inlet 8 is formed in one end of the new energy battery pack 1, an oil outlet 9 is formed in the other end of the new energy battery pack 1, the oil outlet 9 is communicated with the oil inlet 8 through a cooling oil circulation system 10, the cooling oil circulation system 10 is composed of a cooling oil tank, a pump, a refrigerator and a connecting pipeline, the pump in the cooling oil circulation system 10 can fill cooling oil into the new energy battery pack 1, the cooling oil returns to the cooling oil circulation system 10 after taking away heat generated by the battery module 2, the cooling oil returns to the cooling oil tank after being cooled by the refrigerator, and the cooling oil is pumped and circulated by the pump again, so that efficient cooling of the battery module 2 is realized.
Referring to fig. 3 and 4, the corrugated heat dissipating fins 502, the heat conducting bottom plate 601 and the V-shaped baffle fins 602 are all made of steel-aluminum composite material, and the steel-aluminum composite material enables the corrugated heat dissipating fins 502, the heat conducting bottom plate 601 and the V-shaped baffle fins 602 to have the high strength characteristic of a steel structure, and the heat dissipating effect of the fins is improved by means of the high heat conductivity of the aluminum material.
Referring to fig. 3 and 4, the outer walls of the corrugated heat dissipation fins 502, the heat conduction base plate 601 and the V-shaped baffle fins 602 are all provided with polytetrafluoroethylene coatings, and the polytetrafluoroethylene coatings have good weather resistance and corrosion resistance, can keep the service life of the fins under the condition of long-term contact with cooling oil, and have certain high temperature resistance characteristic, so that the use requirement of battery heat dissipation is met under the condition of battery heat generation.
The working principle is as follows: the converging and radiating mechanism 5 and the bottom radiating mechanism 6 are respectively welded on a converging row 501 and the bottom of the top surface of the battery module 2, after the completion, the converging and radiating mechanism 5 and the bottom radiating mechanism 6 are fixed inside the new energy battery pack 1 by using the module fixing end plate 3, an oil inlet 8 at the rear end and an oil outlet 9 at the front end of the new energy battery pack 1 are connected with the inlet and the outlet of the cooling oil circulating system 10 through pipelines, the sealing performance of the connection part is ensured, the cooling oil circulating system 10 is started after the completion, the cooling oil is continuously filled into the new energy battery pack 1 through the oil inlet 8 by the cooling oil circulating system 10, the cooling oil is directly contacted with the converging and radiating mechanism 5 and the bottom radiating mechanism 6 after entering, the heat dissipated from the top high-pressure connection part and the bottom of the battery module 2 is taken away, the heat continues to flow to the oil outlet 9 and returns to the cooling oil circulating system 10 again, the cooling oil is re-filled into the new energy battery pack 1 after being cooled by the cooling oil circulating system 10, and the battery pack is continuously and circularly cooled, and the cooling oil is high-insulated, and high-thermal-conductivity and low-viscosity characteristic oil body.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A novel immersion cooling battery pack of a new energy battery module comprises a new energy battery pack (1), wherein a battery module (2) is arranged inside the new energy battery pack (1);
the method is characterized in that: further comprising:
the battery pack comprises a battery module (2), a module fixing end plate (3) and a plurality of fixing through holes (4), wherein the module fixing end plate (3) is arranged at the front end and the rear end of the battery module (2), the battery module (2) is fixedly connected with the inner cavity of the new energy battery pack (1) through the fixing through holes (4) in the module fixing end plate (3) and fasteners;
the convergence heat dissipation mechanisms (5) are arranged on two sides of the upper surface of the battery module (2), and twelve convergence heat dissipation mechanisms (5) are arranged;
a bottom surface heat dissipation mechanism (6) mounted on the lower surface of the battery module (2);
and the cooling oil (7) is arranged between the new energy battery pack (1) and the battery module (2).
2. The novel immersion cooling battery pack of the new energy battery module as claimed in claim 1, wherein: the heat dissipation mechanism (5) comprises a bus bar (501) and corrugated heat dissipation fins (502), wherein the corrugated heat dissipation fins (502) are arranged in a plurality of numbers, the corrugated heat dissipation fins (502) are arranged on the upper surface of the bus bar (501) and fixedly connected with the bus bar (501), and corrugated flow channels (503) are arranged between the corrugated heat dissipation fins (502).
3. The novel immersion cooling battery pack of the new energy battery module as claimed in claim 2, wherein: bottom surface heat dissipation mechanism (6) include heat conduction bottom plate (601) and V-arrangement baffling fin (602), V-arrangement baffling fin (602) are provided with a plurality ofly, and a plurality of V-arrangement baffling fins (602) all with the outer wall welded connection of heat conduction bottom plate (601), the inside of V-arrangement baffling fin (602) is provided with V-arrangement baffling runner (603).
4. The novel immersion cooling battery pack of the new energy battery module as claimed in claim 3, wherein: one end of the new energy battery pack (1) is provided with an oil inlet (8), the other end of the new energy battery pack (1) is provided with an oil outlet (9), and the oil outlet (9) is communicated with the oil inlet (8) through a cooling oil circulating system (10).
5. The novel immersion cooling battery pack of the new energy battery module as claimed in claim 4, wherein: the corrugated heat dissipation fins (502), the heat conduction bottom plate (601) and the V-shaped baffling fins (602) are all made of steel-aluminum composite materials.
6. The novel immersion cooling battery pack of the new energy battery module as claimed in claim 5, wherein: and polytetrafluoroethylene coatings are arranged on the outer walls of the corrugated heat dissipation fins (502), the heat conduction base plate (601) and the V-shaped baffling fins (602).
CN202222363414.3U 2022-09-06 2022-09-06 Novel immersion cooling battery package of new forms of energy battery module Active CN218498168U (en)

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CN202222363414.3U CN218498168U (en) 2022-09-06 2022-09-06 Novel immersion cooling battery package of new forms of energy battery module

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Application Number Priority Date Filing Date Title
CN202222363414.3U CN218498168U (en) 2022-09-06 2022-09-06 Novel immersion cooling battery package of new forms of energy battery module

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025200272A1 (en) * 2024-03-29 2025-10-02 惠州亿纬锂能股份有限公司 Battery pack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025200272A1 (en) * 2024-03-29 2025-10-02 惠州亿纬锂能股份有限公司 Battery pack

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