Lithium battery heat dissipation structure

By designing a lithium battery heat dissipation structure including a heat dissipation shell, built-in casing, ventilation conduit and flange exhaust pipe, the problems of accelerated heating and passive heat dissipation of the existing lithium battery heat dissipation structure are solved, and the effective heat dissipation and use of lithium batteries are achieved. Extended lifespan.

CN114725561BActive Publication Date: 2025-02-21GUANGDONG LUHUA ENERGY STORAGE TECHNOLOGY CO LTD

Patent Information

Application Number
CN202110003734.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-04
Publication Date
2025-02-21
Estimated Expiration
2041-01-04

AI Technical Summary

Technical Problem

The existing lithium battery heat dissipation structure has the problems of accelerated heating and passive heat dissipation, which is difficult to effectively dissipate heat, affecting the service life of lithium batteries.

Method used

A lithium battery heat dissipation structure is designed, including a heat dissipation shell, a built-in sleeve, a ventilation conduit and a flange exhaust pipe. Through the design of movable connections and ventilation ducts, effective heat dissipation of the lithium battery is achieved.

Benefits of technology

This structure significantly improves the heat dissipation effect of lithium batteries by effectively dividing lithium batteries and utilizing active heat dissipation technology, extends the service life and ensures the safety of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a lithium battery heat dissipation structure, which relates to the field of battery heat dissipation technology, specifically: a lithium battery heat dissipation structure, comprising a heat dissipation shell, wherein the inner side of the heat dissipation shell is provided with symmetrically distributed slide grooves, and the slide grooves on the inner side of the heat dissipation shell are movably connected to a bridge top plate, and the inside of the bridge top plate is fixedly connected to uniformly distributed bridge clamps. The lithium battery heat dissipation structure is provided with uniformly distributed cylindrical grooves on the inner side of the heat dissipation shell, and symmetrically distributed built-in sleeves are movably connected in the grooves on the inner side of the heat dissipation shell, and relatively distributed rectangular heat dissipation ports are provided on the outer side of the built-in sleeves. The lithium battery can be movably connected to the inside of the built-in sleeves and evenly separated, which can ensure that the device can effectively divide the lithium battery, thereby solving the problem that the lithium battery of the existing device is wrapped by an insulating skin and is difficult to dissipate heat.
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Description

Technical Field

[0001] The invention relates to the technical field of battery heat dissipation, and in particular to a lithium battery heat dissipation structure. Background Art

[0002] Lithium batteries are widely used in energy storage power systems such as water, thermal, wind and solar power stations, uninterruptible power supplies for postal and telecommunications, as well as power tools, electric bicycles, electric motorcycles, electric vehicles, military equipment, aerospace and other fields. As lithium batteries are used for a long time, they often heat up, which in turn causes the lithium batteries to bulge. Over time, the electronic components in the device will be damaged. Therefore, a lithium battery heat dissipation structure is needed during the use of lithium batteries.

[0003] Currently, most lithium batteries on the market are wrapped with insulating skin on the outside of the battery. This kind of operation will cause the lithium battery to heat up faster, making it difficult for the lithium battery to dissipate heat. In addition, most of the lithium battery packs used in some existing electric vehicles are passive heat dissipation, which uses natural cooling to naturally cool the lithium battery. However, some electric tools require high power and long-term use. Passive heat dissipation is difficult to ensure the service life of the lithium battery. For this reason, we have proposed a lithium battery heat dissipation structure. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a lithium battery heat dissipation structure, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a lithium battery heat dissipation structure comprises a heat dissipation shell, the inner side of the heat dissipation shell is provided with symmetrically distributed slide grooves, and the slide grooves on the inner side of the heat dissipation shell are movably connected with a bridging top plate, the interior of the bridging top plate is fixedly connected with uniformly distributed bridging clamps, the slide grooves on the inner side of the heat dissipation shell are movably connected with relatively distributed stabilizing pressure blocks, the interior of the heat dissipation shell is provided with uniformly distributed cylindrical grooves, and the cylindrical grooves inside the heat dissipation shell are fixedly connected with symmetrically distributed built-in sleeves, the interior of the built-in sleeves is movably connected with lithium batteries, the interior of the heat dissipation shell is fixedly connected with uniformly distributed ventilation ducts, and one side of the interior of the heat dissipation shell is fixedly connected with a chassis through the ventilation duct, the interior of the chassis is fixedly connected with a driving motor, the two sides of the exterior of the chassis are fixedly connected with symmetrically distributed side wing exhaust pipes, and the inner cavity of the chassis is fixedly connected with a protective mesh.

[0006] Optionally, four rectangular protruding blocks are provided on the inner side of the heat dissipation housing, and two groups of symmetrically distributed cylindrical grooves and cylindrical holes are provided on the outer side of the rectangular protruding blocks on the inner side of the heat dissipation housing, and the cylindrical holes on the outer side of the rectangular protruding blocks are adapted to the outer side of the lithium battery, and the cylindrical grooves are located on the outer side of the cylindrical holes.

[0007] Optionally, the inside of the rectangular raised block on the inner side of the heat dissipation shell is provided with three symmetrically distributed holes and grooves, the outside of the side wing exhaust pipe is provided with three conduits, and the three holes and grooves inside the rectangular raised block are respectively adapted to the three conduits outside the side wing exhaust pipe.

[0008] Optionally, T-shaped sliders are provided on both sides of the outside of the bridging top plate, and the sliders on both sides of the outside of the bridging top plate are adapted to the slide grooves on the inner side of the heat dissipation shell, the bottom of the bridging card passes through and extends to the bottom of the bridging top plate, and a circular concave hole is provided on the bottom of the bridging card, and the circular concave hole at the bottom of the bridging card corresponds to the metal protrusion at the top of the lithium battery.

[0009] Optionally, the built-in sleeve pad is made of silicone material, three symmetrically distributed circular holes are opened on both sides of the outside of the built-in sleeve pad, and a cylindrical slot is opened inside the built-in sleeve pad, and the three circular holes on the outside of the built-in sleeve pad are adapted to the holes and slots inside the rectangular raised block on the inner side of the heat dissipation shell.

[0010] Optionally, a fan blade is fixedly connected to the top of the driving motor, and the bottom end of the ventilation duct passes through and extends to the inner cavity of the chassis. The interior of the chassis is provided with symmetrically distributed circular holes and grooves, and the protective mesh is located in the circular holes and grooves inside the chassis.

[0011] The present invention provides a lithium battery heat dissipation structure, which has the following beneficial effects:

[0012] 1. The lithium battery heat dissipation structure has cylindrical grooves evenly distributed on the inner side of the heat dissipation shell, and symmetrically distributed built-in sleeves are flexibly connected in the grooves on the inner side of the heat dissipation shell, and relatively distributed rectangular heat dissipation ports are opened on the outer side of the built-in sleeves. The lithium batteries can be flexibly connected to the inside of the built-in sleeves and evenly separated, which can ensure that the device can effectively divide the lithium batteries, thereby solving the problem of the existing device that the lithium batteries are wrapped by insulating skin and are difficult to dissipate heat.

[0013] 2. The lithium battery heat dissipation structure is achieved by fixing and connecting symmetrically distributed drive motors inside the chassis, connecting the heat dissipation shell and the chassis using symmetrically distributed ventilation ducts and side exhaust pipes, and opening cylindrical slots inside the built-in sleeve pad. An air flow space is formed between the inside of the built-in sleeve pad and the heat dissipation shell and the chassis, thereby ensuring that the lithium battery inside the device can be effectively cooled, thereby solving the problem of passive heat dissipation of lithium batteries inside existing devices and poor heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2It is a schematic diagram of the structure of the present invention when viewed from above;

[0016] Figure 3 It is a schematic diagram of the partially dispersed structure of the present invention;

[0017] Figure 4 It is a schematic diagram of the internal structure of the present invention.

[0018] In the figure: 1. heat dissipation shell; 2. bridge top plate; 3. bridge clamp; 4. stabilizing block; 5. lithium battery; 6. built-in sleeve; 7. ventilation duct; 8. chassis; 9. drive motor; 10. side exhaust pipe; 11. protective mesh. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figures 1 to 4The present invention provides a technical solution: a lithium battery heat dissipation structure, including a heat dissipation shell 1, four rectangular protruding blocks are provided on the inner side of the heat dissipation shell 1, two groups of symmetrically distributed cylindrical grooves and cylindrical holes are provided on the outer side of the rectangular protruding blocks on the inner side of the heat dissipation shell 1, and the cylindrical holes on the outer side of the rectangular protruding blocks are adapted to the outer side of the lithium battery 5, and the cylindrical grooves are located on the outer side of the cylindrical holes. By providing two cylindrical grooves and cylindrical holes with different inner diameters inside the heat dissipation shell 1, the lithium battery 5 can be freely installed and removed by using the cylindrical holes, and the cylindrical grooves are used to fix the built-in sleeve 6, so as to ensure that during the use of the lithium battery 5, the temperature of the outside world and the temperature of the battery surface will not be transmitted to the metal on the outside of the device. , which leads to overheating of some electronic components outside the device, thereby affecting the use effect of the electronic equipment. The inner side of the heat dissipation shell 1 is provided with symmetrically distributed slide grooves, and the slide grooves inside the heat dissipation shell 1 are movably connected with a bridge top plate 2, and the inside of the bridge top plate 2 is fixedly connected with evenly distributed bridge clamps 3. The slide grooves inside the heat dissipation shell 1 are movably connected with relatively distributed stable pressure blocks 4. By providing symmetrically distributed slide grooves on the inner side of the heat dissipation shell 1, and movably connecting the bridge top plate 2 and the stable pressure block 4 in the slide grooves, and using the fixed nuts inside the stable pressure block 4, it can be ensured that the stable pressure block 4 can stably control the stable connection between the bridge top plate 2 and the lithium battery 5, while ensuring the overall stability of the device. The inside of the heat dissipation shell 1 is provided with evenly distributed The cylindrical groove of the cloth is fixedly connected to the cylindrical groove inside the heat dissipation shell 1 with a symmetrically distributed built-in sleeve gasket 6, which is made of silicone material. Three symmetrically distributed circular holes are opened on both sides of the outside of the built-in sleeve gasket 6, and a cylindrical slot is opened inside the built-in sleeve gasket 6. The three circular holes on the outside of the built-in sleeve gasket 6 are adapted to the holes and grooves inside the rectangular raised card block inside the heat dissipation shell 1. By opening three symmetrically distributed circular holes on the outside of the built-in sleeve gasket 6 and adapting the three circular holes on the outside of the built-in sleeve gasket 6 to the holes and grooves inside the rectangular raised card block inside the heat dissipation shell 1, it is possible to ensure that the external airflow can quickly pass through the lithium battery 5, thereby accelerating the cooling of the lithium battery 5. The internal movably connected to the lithium battery 5, the two sides of the outside of the bridge top plate 2 are opened There is a T-shaped slider, and the sliders on both sides of the outside of the bridge top plate 2 are adapted to the slide grooves on the inner side of the heat dissipation shell 1. The bottom of the bridge card 3 passes through and extends to the bottom of the bridge top plate 2. A circular concave hole is opened at the bottom of the bridge card 3, and the circular concave hole at the bottom of the bridge card 3 corresponds to the metal protrusion at the top of the lithium battery 5. By opening a circular concave hole at the bottom of the bridge card 3 and using the circular concave hole at the bottom of the bridge card 3 and the metal protrusion at the top of the lithium battery 5 to buckle with each other, it can ensure that the device is conveniently and quickly connected to an electronic device or electronic equipment. The interior of the heat dissipation shell 1 is fixedly connected with evenly distributed ventilation ducts 7, and one side of the interior of the heat dissipation shell 1 is fixedly connected to a chassis 8 through the ventilation duct 7. The interior of the chassis 8 is fixedly connected with a drive motor 9.The two sides of the outside of the chassis 8 are fixedly connected to the symmetrically distributed side wing exhaust pipes 10. By setting several different ventilation ducts between the heat dissipation shell 1 and the chassis 8, after the external airflow enters the chassis 8, the airflow can be poured into the inside of the heat dissipation shell 1 by the ventilation ducts, thereby ensuring that the lithium battery 5 can dissipate heat comprehensively. The inside of the rectangular raised block on the inner side of the heat dissipation shell 1 is provided with three symmetrically distributed holes and grooves, and the outside of the side exhaust pipe 10 is provided with three ducts, and the three holes and grooves inside the rectangular raised block are respectively adapted to the three ducts outside the side exhaust pipe 10. The inner cavity of the chassis 8 is fixedly connected with a protective mesh 11, and the top of the drive motor 9 is fixedly connected with a fan blade. By fixing the symmetrically distributed drive motors 9 inside the chassis 8 and using the circular shape of the drive motors 9 to drive the external airflow into the interior of the device, it can be ensured that the device can actively dissipate heat, greatly improve the service life of the lithium battery 5, and ensure the safety of the device. The bottom end of the ventilation duct 7 passes through and extends to the inner cavity of the chassis 8. The interior of the chassis 8 is provided with symmetrically distributed circular holes and slots, and the protective mesh 11 is located in the circular holes and slots inside the chassis 8.

[0021] In summary, when using the lithium battery heat dissipation structure, the operator needs to first check the overall integrity of the device, and then evenly place the lithium battery 5 inside the built-in sleeve 6, and then flexibly connect the bridging top plate 2 to the inner side of the heat dissipation shell 1, and then flexibly buckle the stabilizing block 4 into the groove inside the heat dissipation shell 1, and then thread the fixing nut inside the stabilizing block 4 into the hole at the top of the heat dissipation shell 1, and then start a set of drive motors 9 fixedly connected inside the chassis 8, so that the external airflow enters the chassis 8 and the interior of the heat dissipation shell 1 in turn from the protective mesh 11, and is discharged from the groove buckle on the outside of the built-in sleeve 6, thereby achieving the heat dissipation effect.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery heat dissipation structure, comprising a heat dissipation housing (1), characterized in that: The inner side of the heat dissipation housing (1) is provided with symmetrically distributed sliding grooves, and the sliding grooves on the inner side of the heat dissipation housing (1) are movably connected to the bridge top plate (2), the outer sides of the bridge top plate (2) are provided with T-shaped sliding blocks, and the sliding blocks on the outer sides of the bridge top plate (2) are adapted to the sliding grooves on the inner side of the heat dissipation housing (1), the inner side of the bridge top plate (2) is fixedly connected with uniformly distributed bridge clamps (3), the bottom of the bridge clamps (3) passes through and extends to the bottom of the bridge top plate (2), the bottom of the bridge clamps (3) is provided with a circular concave hole, and the circular concave hole at the bottom of the bridge clamps (3) is aligned with the lithium battery. The metal protrusions at the top of the pool (5) correspond to each other, the slide groove inside the heat dissipation shell (1) is movably connected with relatively distributed stable pressing blocks (4), and the stable pressing blocks (4) are movably connected with fixed nuts inside. The heat dissipation shell (1) is provided with uniformly distributed cylindrical grooves inside, and the cylindrical grooves inside the heat dissipation shell (1) are fixedly connected with symmetrically distributed built-in sleeves (6), and the built-in sleeves (6) are made of silicone material. The two sides of the outside of the built-in sleeves (6) are provided with three symmetrically distributed circular holes, and the inside of the built-in sleeves (6) is provided with cylindrical slots. The built-in sleeves (6) are A lithium battery (5) is movably connected inside, the heat dissipation shell (1) is fixedly connected to a uniformly distributed ventilation duct (7), and one side of the heat dissipation shell (1) is fixedly connected to a chassis (8) through the ventilation duct (7), the chassis (8) is fixedly connected to a drive motor (9), the two sides of the outside of the chassis (8) are fixedly connected to symmetrically distributed side wing exhaust pipes (10), the inner cavity of the chassis (8) is fixedly connected to a protective mesh (11), the inside of the rectangular raised block on the inside of the heat dissipation shell (1) is provided with three symmetrically distributed hole grooves, and the three holes on the outside of the built-in sleeve (6) are fixedly connected to the inner side of the rectangular raised block. The circular holes are matched with the holes and grooves inside the rectangular protruding block inside the heat dissipation shell (1); the outside of the side wing exhaust pipe (10) is provided with three conduits, and the three holes and grooves inside the rectangular protruding block are respectively matched with the three conduits outside the side wing exhaust pipe (10); the inside of the heat dissipation shell (1) is provided with four rectangular protruding blocks; the outside of the rectangular protruding blocks inside the heat dissipation shell (1) are provided with two groups of symmetrically distributed cylindrical grooves and cylindrical holes, and the cylindrical holes outside the rectangular protruding blocks are matched with the outside of the lithium battery (5), and the cylindrical grooves are located outside the cylindrical holes.

2. The lithium battery heat dissipation structure according to claim 1, characterized in that: The top end of the drive motor (9) is fixedly connected to a fan blade, the bottom end of the ventilation duct (7) passes through and extends to the inner cavity of the chassis (8), the interior of the chassis (8) is provided with symmetrically distributed circular holes and slots, and the protective mesh (11) is located in the circular holes and slots inside the chassis (8).

Citation Information

Patent Citations

  • Cylindrical lithium battery core bracket and power battery pack

    CN106129295A

  • Metal power battery pack shell device and using method thereof

    CN112103439A

  • Battery cooling device for electric vehicle

    CN211208622U

  • Lithium battery heat dissipation structure

    CN214542342U

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