CN209948003U - Three-layer distributed battery module heat dissipation device with fins - Google Patents
Three-layer distributed battery module heat dissipation device with fins Download PDFInfo
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- CN209948003U CN209948003U CN201920961220.9U CN201920961220U CN209948003U CN 209948003 U CN209948003 U CN 209948003U CN 201920961220 U CN201920961220 U CN 201920961220U CN 209948003 U CN209948003 U CN 209948003U
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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
A three-layer distributed battery module heat dissipation device with fins is of an inner-outer three-layer structure and comprises an integral heat dissipation inner frame (10) which is arranged at the innermost layer and fixedly accommodates battery monomers (4), an anti-collision damping foamed aluminum frame (5) arranged at the middle layer and a heat conduction outer shell (6) arranged at the outermost layer; and a waterproof and dustproof heat-conducting silica gel cover pad (9) and heat-radiating fins. An inner shell cover (3) is arranged on the heat dissipation inner frame, and an outer shell top cover (2) is arranged on the inner shell cover. The utility model discloses the device utilizes inlayer heat dissipation frame and fin direct contact heat dissipation, derives the heat that the battery during operation produced rapidly, recycles the wind channel and forms the convection heat dissipation with radiating fin, effectively improves the radiating efficiency to optimize battery module heat dissipation equilibrium. The utility model discloses the device adopts three-layer distributing type structure, and the radiating efficiency is high, and the quality is light, and the leakproofness is good, and is waterproof dustproof, has good insulating nature simultaneously, workable, and the security performance is good.
Description
Technical Field
The utility model relates to a three-layer distributing type battery module heat abstractor of taking fin belongs to battery heat dissipation technical field.
Background
With the development of new energy, electric vehicles have been developed vigorously in recent years, and the performance and the service life of the power battery as an energy supply and storage element of the electric vehicle directly affect the use performance and the competitiveness of the power vehicle. Among many power batteries, lithium ion batteries have a series of advantages such as high specific energy, large output power and no memory effect, and thus have become a hot point for power battery research.
In the new energy automobile market, no matter which form of power battery is adopted, the power performance, the safety and the service life of the automobile must be ensured. Thermal problems such as thermal safety, thermal reliability and thermal equilibrium when the power battery works are important factors for restricting the performance of the electric automobile. In practical application, in order to meet the requirements of people on the power performance and the cruising ability of the electric automobile, the battery monomers are often connected in series and parallel to form a high-power and high-capacity power battery. When the electric automobile runs actually, the electric automobile often experiences different service conditions, and the power battery also experiences a discharge process with different multiplying powers; however, with the increase of the discharge rate, the temperature rise rate of the battery monomer is increased, the heat accumulation inside the battery pack is easy to occur, the heat dissipation among the battery monomers is unbalanced, the automobile performance and the service life of the battery are affected, and even thermal runaway is easy to cause in severe cases, so that dangerous situations such as spontaneous combustion and explosion occur. For the lithium ion power battery, the optimal working temperature range is 20-45 ℃, and the maximum temperature difference between battery monomers is not higher than 5 ℃. Therefore, the thermal design and heat dissipation structure arrangement of the power battery are critical to the performance of the battery. Meanwhile, the power battery needs to be guaranteed to be waterproof and dustproof under any working condition, collision is avoided, and the safety performance of the power battery is improved.
Disclosure of Invention
The utility model aims at providing a, pile up in order to solve the inside temperature of battery module during operation under the forced air cooling condition, the heat dissipation is uneven and the radiating efficiency is low to and the waterproof dustproof anticollision problem of battery monomer, provide a take three-layer distributing type battery module heat abstractor of fin.
The technical scheme of the utility model is as follows, a three-layer distributed battery module heat abstractor with fins, the device is an inner and outer three-layer structure, including the integral heat dissipation inner frame of the fixed battery monomer that holds of inlayer, the crashproof shock attenuation foamed aluminum frame of intermediate level, the outermost heat conduction shell; the waterproof and dustproof heat-conducting silica gel cover pad and the radiating fins are arranged on the base; and a heat dissipation material is coated on the surface of the foamed aluminum frame.
The heat dissipation inner frame is made of aluminum alloy and is the same as a battery cell in shape, the thickness of the two longer sides of the heat dissipation inner frame is 0.8 ~ 2mm, the thickness of the two shorter sides of the heat dissipation inner frame is 2 ~ 4mm, and a heat conduction inner cover is arranged at an opening above the heat dissipation inner frame.
The foamed aluminum frame is arranged on the outer side of the heat dissipation inner frame, the shape of the foamed aluminum frame is the same as that of the heat dissipation inner frame, the thickness of the foamed aluminum frame is 2 ~ 3mm, the foamed aluminum frame is made of closed-cell foamed aluminum with the porosity of 80-90%, two sides of the longer end of the foamed aluminum frame are provided with elongated openings corresponding to the intervals among the single batteries of the heat dissipation inner frame, and the size of the outer frame is 145mm multiplied by 2 mm.
The heat conduction shell is made of aluminum alloy, the shape of the heat conduction shell is the same as that of the foamed aluminum frame, the thickness of the heat conduction shell is 3-4mm, the inner wall of the heat conduction shell is tightly attached to the foamed aluminum frame, the left side, the right side and the bottom of the heat conduction shell are designed to be in a heat dissipation groove form, the diameter of the heat dissipation groove is 2 ~ 3mm, the bottom of the heat dissipation groove is fixed by screws, and the top of the heat dissipation groove is.
The radiating fins are made of aluminum alloy materials, are directly attached to the wall surface of a radiating inner frame through a long and thin opening designed by a heat conduction outer shell and a foamed aluminum frame, are arranged along the direction of an air duct and deeply radiate heat, the size of the contact surface of the radiating fins and the radiating inner frame is 145 multiplied by 2mm, the straight extension length is 5 ~ 8mm, the corner extension length is 6 ~ 10mm, the corner is 10 degrees ~ 45 degrees, the corner extension part of the fins is subjected to die drawing treatment, and the die drawing thickness is 1 ~ 3 mm.
The radiating fins are connected with the heat-conducting shell through bayonets to fix the heat-conducting shell; the upper end of the top cover of the heat-conducting shell is provided with a positive terminal and a negative terminal, and the positive terminal and the negative terminal are coated with insulating materials; the top cover of the heat conduction shell is provided with a screw hole and is sealed and fixed by a top cover fixing screw; the heat conduction shell base is provided with a screw hole, and the base is fixed by a base fixing screw in a sealing manner.
The battery monomer is square and is directly placed in the integral heat dissipation inner frame without other fixing devices.
The heat conduction silica gel cap pad is tightly attached to the single battery and the heat dissipation inner frame in a stepped manner, and is made of XK-P80 or XK-P60 and 0.3 ~ 1mm in thickness.
The heat conduction inner shell cover is tightly attached to the foamed aluminum frame and the heat conduction silica gel pad cover in a stepped mode, the heat conduction inner shell cover is made of copper alloy, and the thickness of the heat conduction inner shell cover is 0.5 ~ 2 mm.
The heat dissipation frame and the anti-collision shock-absorption foamed aluminum frame are connected in an assembled fit mode, and if a certain heat dissipation piece breaks down, the heat dissipation frame and the anti-collision shock-absorption foamed aluminum frame can be detached and replaced independently.
The utility model discloses an operating principle is, the utility model discloses a direct contact heat dissipation derives the heat that battery monomer during operation produced rapidly, forms the convection heat dissipation by wind channel and radiating fin again, radiating fin end is certain angle in the same direction as the wind channel direction, improves the radiating efficiency effectively to optimize the battery module heat dissipation condition, improve the reliability, the security and the life of battery.
The utility model has the advantages that the device adopts a three-layer distributed heat dissipation mode combining the air channel and the fin heat dissipation, utilizes the inner-layer heat dissipation frame and the fin direct contact heat dissipation to rapidly guide out the heat generated during the operation of the battery, and then utilizes the air channel and the heat dissipation fins to form convection heat dissipation, thereby effectively improving the heat dissipation efficiency and optimizing the heat dissipation balance of the battery module; the utility model discloses radiating fin among the device adopts the light, the good aluminium fin of thermal conductivity of quality, can go deep into contact battery heat dissipation frame, and the fin has certain draft thickness difference simultaneously, and terminal edge is certain angle along following the wind channel direction, has improved the compactedness of device in the reinforcing radiating effect. The foamed aluminum frame in the device has the excellent characteristics of small density, light weight, strong impact absorption capacity, strong fire resistance, excellent heat dissipation performance and higher strength; the lightweight of battery package can be improved, the safe crashproof function of battery is improved simultaneously.
The utility model discloses the device adopts three-layer distributing type structure, and the radiating efficiency is high, and the quality is light, and the leakproofness is good, and is waterproof dustproof, has good insulating nature simultaneously, workable, and the security performance is good.
Drawings
Fig. 1 is an external view of a three-layer distributed battery module heat dissipation device with fins according to the present invention;
fig. 2 is a front view of the three-layer distributed battery module heat dissipation device with fins of the present invention;
FIG. 3 is a left side view of the three-layer distributed battery module heat dissipation device with fins of the present invention
FIG. 4 is an external view of the heat dissipation device;
FIG. 5 is a schematic view of a heat-conducting housing of the heat dissipation device;
FIG. 6 is a schematic view of a heat sink fin;
in the figure: 1 is a top cover fixing screw; 2 is a heat-conducting shell top cover; 3 is a heat-conducting inner shell cover; 4 is a battery monomer; 5 is a foamed aluminum frame; 6 is a heat-conducting shell; 7 is a base fixing screw; 8 is a base screw hole; 9 is a heat-conducting silica gel cover pad; 10 is a heat dissipation inner frame; 11 is an elongated opening; 12 is a heat dissipation groove; 13 is a heat conducting fin; 14 is a positive terminal; 15 is a negative terminal; 16 is the bottom of the radiating fin; 17 is the tail end of the radiating fin; 18 is the angle between the tail end of the radiating fin and the bottom; 19 is a drawing end face of the radiating fin; 20 is a chamfer; 21 is a bayonet; and 23 is a top cover screw hole.
Detailed Description
The specific embodiment of the present invention is shown in fig. 1.
The three-layer distributed battery module heat dissipation device with the fins is of an inner-layer and outer-layer structure and comprises an integral heat dissipation inner frame 10 which is arranged on the innermost layer and fixedly accommodates battery monomers, an anti-collision shock absorption foamed aluminum frame 5 arranged on the middle layer and a heat conduction shell 6 arranged on the outermost layer; and a waterproof and dustproof heat-conducting silica gel cover pad 9 and heat-radiating fins 13.
In the embodiment, a square power battery is taken as an example for explanation, the heat dissipation device of the battery module is square, the surface of the outer heat conduction shell 6 is designed into a heat dissipation groove, the heat dissipation fins 13 are arranged on two sides of the heat conduction shell 6, and the heat dissipation fins 13 and an external air duct form convection heat dissipation to rapidly conduct out heat generated inside the battery.
As shown in fig. 2 and 3, the three-layer distributed battery module heat dissipation device with fins comprises a three-layer structure, wherein the innermost layer is a battery module heat dissipation inner frame 10, the single batteries 4 can be directly inserted and placed, the heat dissipation inner frame 10 is made of aluminum alloy with good heat conductivity, and due to tight fit, heat generated by the single batteries during working can be rapidly transferred to the frame, so that the accumulation of the internal temperature of the battery module is avoided; the middle layer is an aluminum foam frame 5, the surface of the aluminum foam frame 5 is coated with a heat dissipation material, the inner side of the aluminum foam frame 5 is directly attached to a heat dissipation inner frame 10, and both sides of the aluminum foam frame 5 are provided with elongated openings 11, as shown in fig. 4; the outer layer is a heat-conducting frame 6, and the two sides and the bottom of the heat-conducting frame 6 are designed into a heat-radiating groove 12 form, as shown in fig. 5; the radiating fins 13 are directly attached and contacted with the radiating inner frame 10 through the elongated openings 11; the internal heat of the radiating inner frame 10 can be led out, and the internal heat generated by the battery monomer 4 is led into the external environment through internal heat transfer and external convection radiation, so that the radiating efficiency is improved, and the radiating balance is improved;
as shown in fig. 2, the three-layer distributed battery module heat dissipation device with fins of the present embodiment is fixed through the bottom of the heat-conducting outer shell 6, and at the upper end of the shell, there are two layers of shell covers, an outer top cover 2 and an inner shell cover 3, and a heat-conducting silica gel cap gasket 9 is disposed between the inner shell cover 3 and the heat dissipation inner frame 10, so as to ensure the sealing property and the insulating property of the battery module.
As shown in fig. 6, the fin ends 17 and the fin bottoms 16 form a certain angle, and are arranged along the air duct within 10 ° ~ 45 ° and the fin ends 17 have a certain draft height, so that the fin ends 17 and the fin bottoms 16 have different thicknesses, thereby improving the heat dissipation efficiency and the compactness of the structural arrangement.
The utility model discloses a direct contact formula heat dissipation, as shown in fig. 3, derive the heat that battery monomer 4 during operation produced rapidly, form the convection heat dissipation by wind channel and radiating fin 13 again, radiating fin end 17 is certain angle in the same direction as the wind channel direction, improves the radiating efficiency effectively to optimize the battery module heat dissipation condition, improve the reliability, the security and the life of battery.
The above embodiments are the preferred embodiments of the present invention. However, the embodiments of the present invention are not limited to the above examples. Any modification, substitution, combination or simplification of the shape or structure of the device by the above method of the present invention, all falling within the spirit and principle of the present invention, is within the scope of the present invention.
Claims (10)
1. The three-layer distributed battery module heat dissipation device with the fins is characterized by being of an inner-layer and outer-layer structure and comprising an integral heat dissipation inner frame, an anti-collision damping foamed aluminum frame and a heat conduction outer shell, wherein the integral heat dissipation inner frame is arranged on the innermost layer and fixedly contains battery monomers; the waterproof and dustproof heat-conducting silica gel cover pad and the radiating fins are arranged on the base; and a heat dissipation material is coated on the surface of the foamed aluminum frame.
2. The finned three-layer distributed battery module heat sink according to claim 1, wherein the heat dissipating inner frame is made of aluminum alloy; the shape of the battery is the same as that of the battery monomer; the thickness of the longer two sides of the heat dissipation inner frame is 0.8-2 mm; the thickness of the shorter two sides of the heat dissipation inner frame is 2-4 mm; and a heat-conducting inner shell cover is arranged at an opening above the heat-radiating inner frame.
3. The finned three-layer distributed battery module heat sink according to claim 1, wherein the aluminum foam frame is arranged outside the heat dissipation inner frame, has the same shape as the heat dissipation inner frame, and has a thickness of 2-3 mm; the material of the foamed aluminum frame is closed-cell foamed aluminum with the porosity of 80-90%; and two sides of the longer end of the foamed aluminum frame are provided with elongated openings corresponding to the intervals among the single batteries in the heat dissipation inner frame, and the size of the outer frame is 145mm multiplied by 2 mm.
4. The finned three-layer distributed battery module heat dissipation device according to claim 1, wherein the heat conduction shell is made of aluminum alloy, is the same as the foamed aluminum frame in shape, and is 3-4mm thick; the inner wall of the heat-conducting shell is tightly attached to the foamed aluminum frame; meanwhile, the left side, the right side and the bottom are designed to be in the form of heat dissipation grooves, the diameters of the heat dissipation grooves are 2-3mm, the bottoms are fixed by screws, and the tops are extended outwards and provided with scoring screw holes.
5. The finned three-layer distributed battery module heat sink according to claim 1, wherein the heat sink fins are made of an aluminum alloy material; the heat-conducting shell and the elongated opening designed on the foamed aluminum frame are directly attached to the wall surface of the heat-radiating inner frame and are arranged along the direction of the air duct to deeply radiate heat; the size of the contact surface of the radiating fin and the radiating inner frame is 145 multiplied by 2mm, the straight extension length is 5-8mm, the corner extension length is 6-10mm, the corner is 10-45 degrees, the fin corner extension part is subjected to die drawing treatment, and the die drawing thickness is 1-3 mm.
6. The finned three-layer distributed battery module heat sink according to claim 1, wherein the heat sink fins are connected with the heat conducting shell through bayonets to fix the heat sink fins; the upper end of the top cover of the heat-conducting shell is provided with a positive terminal and a negative terminal, and the positive terminal and the negative terminal are coated with insulating materials; the top cover of the heat conduction shell is provided with a screw hole and is sealed and fixed by a top cover fixing screw; the heat conduction shell base is provided with a screw hole, and the base is fixed by a base fixing screw in a sealing manner.
7. The finned three-layer distributed battery module heat sink according to claim 1, wherein the battery cells are square and directly placed in the integral heat dissipation inner frame without other fixing devices.
8. The finned three-layer distributed battery module heat sink according to claim 1, wherein the heat conductive silicone cover gasket is tightly attached to the battery cells and the heat dissipating inner frame in a stepped manner, and is made of XK-P80 or XK-P60 and has a thickness of 0.3-1 mm.
9. The finned three-layer distributed battery module heat dissipation device according to claim 2, wherein the heat-conducting inner shell cover is tightly attached to the foamed aluminum frame and the heat-conducting silica gel pad cover in a stepped manner, is made of copper alloy, and has a thickness of 0.5-2 mm.
10. The finned three-layer distributed battery module heat sink device according to claim 1, wherein the heat dissipating inner frame and the crash cushion foam aluminum frame are connected in an assembly fit manner, and can be detached and replaced independently if a heat dissipating element fails.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961220.9U CN209948003U (en) | 2019-06-25 | 2019-06-25 | Three-layer distributed battery module heat dissipation device with fins |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920961220.9U CN209948003U (en) | 2019-06-25 | 2019-06-25 | Three-layer distributed battery module heat dissipation device with fins |
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| CN209948003U true CN209948003U (en) | 2020-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682139A (en) * | 2020-06-19 | 2020-09-18 | 风帆（扬州）有限责任公司 | High-strength power energy storage battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682139A (en) * | 2020-06-19 | 2020-09-18 | 风帆（扬州）有限责任公司 | High-strength power energy storage battery |
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