A new energy vehicle battery pack cooling system

Abstract

The present invention relates to the field of automobile battery packs, and specifically to a heat dissipation system for a new energy automobile battery pack, comprising an upper shell, a heat dissipation component being arranged inside the upper shell, a flow guide component being arranged at the upper end of the upper shell, a battery component being clamped at the lower end of the upper shell, a control component being arranged inside the battery component, an air induction component being arranged on the outer wall of the upper shell, and the heat dissipation component comprising a plurality of air ducts, air flow being guided by an arc frame and flowing into two air inlet pipes, and air flow being input into the interior of the upper shell through an elliptical cylinder in the air inlet pipe, and air flow delivered by the elliptical cylinder flowing over the surface of the battery so that the air flow absorbs heat in the battery, and a fan is driven to rotate by a motor, and when the fan rotates, the air flow inside the upper shell is driven to be drawn into the wind hood through the air duct, and at this time the air flow inside the upper shell takes away the heat generated by the battery, and then the air flow is discharged through the wind hood and the guide hood, so that the battery is quickly cooled, thereby improving the heat dissipation efficiency of the battery in a hot environment.

Description

Technical Field

[0001] The present invention relates to the field of automobile battery packs, and in particular to a heat dissipation system for a new energy automobile battery pack. Background Art

[0002] A battery pack is generally composed of multiple battery groups, and a battery management system is added. This is the product that the battery factory finally provides to users. The battery pack is composed of multiple battery cells, forming a single physical module, providing higher voltage and capacity. New energy vehicles are all powered by lithium battery packs. It can be said that in a pure electric vehicle, the battery pack is its heart. The battery is externally charged through a power plug, supplies power to the electric motor, drives the vehicle, and stores energy recovered by braking.

[0003] Existing automotive battery packs are installed in the chassis of the car and protected by the overall frame of the car. However, the battery generates heat during the power transmission process. In cold environments, this heat will be dissipated by the airflow as the vehicle travels at high speeds. This heat cannot be used and is wasted. In hot environments, the airflow flowing under the car has a small contact area with the battery and cannot quickly carry away the heat. This will cause heat to accumulate inside the battery pack, eventually causing damage to the battery pack. Summary of the Invention

[0004] In response to the problems in the prior art, the present invention provides a new energy vehicle battery pack heat dissipation system.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a new energy vehicle battery pack heat dissipation system, including an upper shell, a heat dissipation component is disposed inside the upper shell, a flow guide component is disposed at the upper end of the upper shell, a battery assembly is clamped at the lower end of the upper shell, a control component is disposed inside the battery assembly, and an air induction component is disposed on the outer wall of the upper shell;

[0006] The heat dissipation assembly includes multiple air ducts, multiple air ducts are embedded in the center of the upper surface of the upper shell, and the lower ends of the multiple air ducts are symmetrically provided with snap-in notches. The inner walls of the multiple air ducts are fixedly connected with strips, the lower ends of the multiple strips are fixedly connected with motors, the output ends of the multiple motors are fixedly connected with fans, the upper ends of the multiple air ducts are fixedly connected with arc covers, the upper outer wall of the upper shell is fixedly connected with a wind cover, the lower outer wall of the wind cover is sleeved on the outer walls of the multiple air ducts, and the upper outer wall of the wind cover is fixedly connected with multiple baffles.

[0007] Specifically, the guide assembly includes a fixed block, which is fixedly connected to the upper surface of the upper shell. A cylinder is embedded in the fixed block, and the output end of the cylinder is fixedly connected to a guide cover. A socket groove is provided at the lower end of the guide cover, and a plurality of circular holes are provided on the upper surface of the guide cover.

[0008] Specifically, the battery assembly includes a bottom shell, which is clamped on the inner wall of the upper shell, and two fixed plates are symmetrically fixedly connected to the inner wall of the bottom shell. Multiple slots are provided on the side walls of the two fixed plates, and buffer strips are fixedly connected to the inner walls of the multiple slots. Batteries are clamped inside the multiple slots, and the other ends of the multiple batteries are clamped inside multiple U-shaped blocks. The multiple U-shaped blocks are fixedly connected to the center of the lower inner wall of the bottom shell, and multiple elliptical holes are provided on the surface of the two fixed plates.

[0009] Specifically, the control component includes a controller, which is fixedly connected to the bottom of the bottom shell, the upper end of the controller is plugged into the through hole, two conductive plates are fixedly connected to the side wall of the controller, and multiple connection connectors are fixedly connected to the two conductive plates, and the multiple connection connectors are fixedly connected to the side walls of multiple batteries.

[0010] Specifically, the air induced assembly includes two air inlet pipes, which are fixedly connected to the outer walls at both ends of the upper shell, and one end of the two air inlet pipes is fixedly connected to the outer wall of the same arc-shaped frame. An arc-shaped filter plate is embedded in the opening of the arc-shaped frame, and two vertical plates are symmetrically fixedly connected to the surface of the arc-shaped frame. A plurality of triangular blocks and a plurality of inclined plates are respectively fixedly connected to the inner walls of the two vertical plates, and an elliptical cylinder is fixedly connected to the side walls of the two air inlet pipes, and a plurality of the elliptical cylinders pass through the upper shell and are clamped inside a plurality of elliptical holes.

[0011] Specifically, the clamping notches at both ends of the air duct are respectively clamped on the upper outer walls of the two batteries.

[0012] Specifically, the length of the guide cover is longer than that of the wind cover, and an inclined opening is provided at one end of the wind cover, and the opening of the wind cover matches the sleeve groove.

[0013] Specifically, the lower ends of the plurality of inclined plates are arranged close to the plurality of triangular blocks, and the triangular blocks are located between the arc frame and the inclined plates.

[0014] Beneficial effects of the present invention:

[0015] (1) The present invention relates to a heat dissipation system for a battery pack of a new energy vehicle. The airflow is guided by an arc frame and flows into two air inlet pipes. The airflow is input into the interior of the upper shell through the elliptical cylinder in the air inlet pipe. The airflow delivered by the elliptical cylinder flows over the surface of the battery, so that the airflow absorbs the heat in the battery. The fan is driven to rotate by a motor. When the fan rotates, the airflow inside the upper shell is driven through the wind tube and drawn into the wind cover. At this time, the airflow inside the upper shell takes away the heat generated by the battery, and then the airflow is discharged through the wind cover and the guide cover, so that the battery is cooled quickly, thereby improving the heat dissipation efficiency of the battery in a hot environment.

[0016] (2) The heat dissipation system for a new energy vehicle battery pack described in the present invention pushes the guide cover through the cylinder so that the sleeve groove of the guide cover blocks the opening of the wind cover, and at the same time separates the circular hole from the baffle, so that the air flow in the guide cover is input into the bottom of the car through the circular hole, thereby transmitting heat into the car to prevent heat from being wasted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 A schematic structural diagram of a new energy vehicle battery pack heat dissipation system provided by the present invention;

[0019] Figure 2 A schematic side view of a heat dissipation system for a new energy vehicle battery pack provided by the present invention;

[0020] Figure 3 A schematic diagram of the air inlet pipe structure of a new energy vehicle battery pack heat dissipation system provided by the present invention;

[0021] Figure 4 A schematic diagram of the guide cover structure of a new energy vehicle battery pack heat dissipation system provided by the present invention;

[0022] Figure 5 A schematic diagram of the structure of an air duct for a new energy vehicle battery pack heat dissipation system provided by the present invention;

[0023] Figure 6 A schematic diagram of the vertical plate structure of a new energy vehicle battery pack heat dissipation system provided by the present invention;

[0024] Figure 7 A schematic diagram of the fixing plate structure of a new energy vehicle battery pack heat dissipation system provided by the present invention.

[0025] In the figure: 1. upper shell; 2. heat dissipation component; 21. air duct; 22. snap-in notch; 23. strip plate; 24. motor; 25. fan; 26. arc cover; 27. air cover; 28. baffle; 3. air guide component; 31. fixing block; 32. cylinder; 33. guide cover; 34. sleeve groove; 35. round hole; 4. battery component; 41. bottom shell; 42. fixing plate; 43. slot; 44. buffer strip; 45. battery; 46. U-shaped block; 47. elliptical hole; 5. control component; 51. controller; 52. through hole; 53. conductive plate; 54. connecting joint; 6. air induced draft component; 61. air inlet pipe; 62. arc frame; 63. arc filter plate; 64. vertical plate; 65. triangular block; 66. inclined plate; 67. elliptical cylinder. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1-Figure 7 As shown, a new energy vehicle battery pack heat dissipation system according to the present invention includes an upper shell 1, a heat dissipation component 2 is provided inside the upper shell 1, a flow guide component 3 is provided at the upper end of the upper shell 1, a battery component 4 is clamped at the lower end of the upper shell 1, a control component 5 is provided inside the battery component 4, and an air induction component 6 is provided on the outer wall of the upper shell 1;

[0028] The heat dissipation assembly 2 includes multiple air ducts 21, which are embedded in the center of the upper surface of the upper shell 1. The lower ends of the multiple air ducts 21 are symmetrically provided with snap-in notches 22. The inner walls of the multiple air ducts 21 are fixedly connected with strips 23, the lower ends of the multiple strips 23 are fixedly connected with motors 24, the output ends of the multiple motors 24 are fixedly connected with fans 25, the upper ends of the multiple air ducts 21 are fixedly connected with arc covers 26, and the upper outer wall of the upper end of the upper shell 1 is fixedly connected with a wind cover 27. The lower outer wall of the wind cover 27 is sleeved on the outer walls of the multiple air ducts 21, and the upper outer wall of the wind cover 27 is fixedly connected with multiple baffles 28. The starting motor 24 drives the fan 25 to rotate. When the fan 25 rotates, it drives the air flow inside the upper shell 1 to be drawn into the wind cover 27 through the air duct 21. At this time, the air flow inside the upper shell 1 takes away the heat generated by the battery 45.

[0029] Specifically, the guide assembly 3 includes a fixed block 31, which is fixedly connected to the upper surface of the upper shell 1. A cylinder 32 is embedded in the fixed block 31, and the output end of the cylinder 32 is fixedly connected to a guide cover 33. A socket groove 34 is provided at the lower end of the guide cover 33, and a plurality of circular holes 35 are provided on the upper surface of the guide cover 33. The air flow is then discharged through the wind cover 27 and the guide cover 33, so that the battery 45 can be cooled quickly, thereby improving the heat dissipation efficiency of the battery 45 in a hot environment.

[0030] Specifically, the battery assembly 4 includes a bottom shell 41, which is clamped on the inner wall of the upper shell 1. Two fixing plates 42 are symmetrically fixedly connected to the inner wall of the bottom shell 41. A plurality of slots 43 are provided on the side walls of the two fixing plates 42. The inner walls of the plurality of slots 43 are fixedly connected with buffer strips 44. The interiors of the plurality of slots 43 are clamped with batteries 45. The other ends of the plurality of batteries 45 are clamped inside a plurality of U-shaped clamping blocks 46. The plurality of U-shaped clamping blocks 46 are fixedly connected to the inner wall of the lower end of the bottom shell 41. At the center, a plurality of elliptical holes 47 are provided on the surface of the two fixing plates 42. The airflow delivered by the elliptical cylinder 67 flows over the surface of the battery 45, so that the airflow absorbs the heat in the battery 45. In a cold environment, the cylinder 32 is controlled to push the guide cover 33 so that the sleeve groove 34 of the guide cover 33 blocks the opening of the wind cover 27, and at the same time separates the circular hole 35 from the baffle 28, so that the airflow in the guide cover 33 is input into the bottom of the car through the circular hole 35, thereby transferring the heat into the car to prevent the heat from being wasted.

[0031] Specifically, the control component 5 includes a controller 51, which is fixedly connected to the bottom of the bottom shell 41. The upper end of the controller 51 is inserted into the through hole 52. Two conductive plates 53 are fixedly connected to the side walls of the controller 51. Multiple connecting connectors 54 are fixedly connected to the two conductive plates 53. The multiple connecting connectors 54 are fixedly connected to the side walls of multiple batteries 45.

[0032] Specifically, the air induced assembly 6 includes two air inlet pipes 61, the two air inlet pipes 61 are fixedly connected to the outer walls at both ends of the upper shell 1, one end of the two air inlet pipes 61 is fixedly connected to the outer wall of the same arc frame 62, and an arc filter plate 63 is embedded in the opening of the arc frame 62. Two vertical plates 64 are symmetrically fixedly connected to the surface of the arc frame 62, and multiple triangular blocks 65 and multiple inclined plates 66 are fixedly connected to the inner walls of the two vertical plates 64. An elliptical cylinder 67 is fixedly connected to the side walls of the two air inlet pipes 61, and multiple elliptical cylinders 67 pass through the upper shell 1 and are clamped inside the multiple elliptical holes 47. When the airflow flows, the garbage and splashed water will be blocked by the inclined plates 66, and the other part will fall on the triangular blocks 65 and slide along the triangular blocks 65, so that the water will not enter the arc frame 62. Then the airflow flows into the two air inlet pipes 61 through the guidance of the arc frame 62, and the airflow is input into the interior of the upper shell 1 through the elliptical cylinders 67 in the air inlet pipes 61.

[0033] Specifically, the engaging notches 22 at both ends of the air duct 21 are respectively engaged with the upper outer walls of the two batteries 45 , thereby stably engaging the air duct 21 between the batteries 45 , so that the heat on the batteries 45 is stably absorbed by the air duct 21 .

[0034] Specifically, the length of the guide cover 33 is longer than that of the wind cover 27 . An inclined opening is provided at one end of the wind cover 27 . The opening of the wind cover 27 matches the sleeve groove 34 , so that the guide cover 33 can block the wind cover 27 .

[0035] Specifically, the lower ends of multiple inclined plates 66 are arranged close to multiple triangular blocks 65, and the triangular blocks 65 are located between the arc frame 62 and the inclined plates 66. When the airflow flows, the garbage and splashed water will be partially blocked by the inclined plates 66, and the other part will fall on the triangular blocks 65 and slide down along the triangular blocks 65, so that the water will not enter the arc frame 62.

[0036] When in use, the upper shell 1 is first driven by the car to move, and when the upper shell 1 moves, the air inlet pipe 61 is driven to move, and when the air inlet pipe 61 moves, the arc frame 62 is driven to move, and when the arc frame 62 moves, the arc filter plate 63 is driven to collide with the flowing airflow, so that the airflow enters the arc frame 62 after being filtered. The garbage and splashed water brought by the airflow will be partially blocked by the inclined plate 66, and the other part will fall on the triangular block 65 and slide along the triangular block 65, so that the water will not enter the arc frame 62, and then the airflow is guided by the arc frame 62 to flow into the two air inlet pipes 61, and the airflow is input into the upper shell 1 through the elliptical cylinder 67 in the air inlet pipe 61. The airflow delivered by the elliptical cylinder 67 flows over the surface of the battery 45. , so that the airflow absorbs the heat in the battery 45, and then the motor 24 is started to drive the fan 25 to rotate. When the fan 25 rotates, it drives the airflow inside the upper shell 1 to be drawn into the wind cover 27 through the wind tube 21. At this time, the airflow inside the upper shell 1 takes away the heat generated by the battery 45, and then the airflow is discharged through the wind cover 27 and the guide cover 33, so that the battery 45 can be cooled quickly, thereby improving the heat dissipation efficiency of the battery 45 in a hot environment. In a cold environment, the cylinder 32 is controlled to push the guide cover 33 so that the sleeve groove 34 of the guide cover 33 blocks the opening of the wind cover 27, and at the same time separates the circular hole 35 from the baffle 28, so that the airflow in the guide cover 33 is input into the bottom of the car through the circular hole 35, thereby transferring the heat into the car to prevent the heat from being wasted.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation system for a battery pack of a new energy vehicle, comprising an upper shell (1), a heat dissipation component (2) being provided inside the upper shell (1), a flow guide component (3) being provided at the upper end of the upper shell (1), a battery component (4) being clamped at the lower end of the upper shell (1), a control component (5) being provided inside the battery component (4), and an air induction component (6) being provided on the outer wall of the upper shell (1); Its characteristics are: The heat dissipation assembly (2) includes a plurality of air tubes (21), the plurality of air tubes (21) are embedded in the center of the upper surface of the upper shell (1), the lower ends of the plurality of air tubes (21) are symmetrically provided with a snap-in notch (22), the inner walls of the plurality of air tubes (21) are fixedly connected with a strip plate (23), the lower ends of the plurality of strip plates (23) are fixedly connected with a motor (24), the output ends of the plurality of motors (24) are fixedly connected with a fan (25), the upper ends of the plurality of air tubes (21) are fixedly connected with an arc cover (26), the upper outer wall of the upper shell (1) is fixedly connected with a wind cover (27), the lower outer wall of the wind cover (27) is sleeved on the outer walls of the plurality of air tubes (21), and the upper outer wall of the wind cover (27) is fixedly connected with a plurality of baffles (28); The flow guide assembly (3) comprises a fixed block (31), the fixed block (31) being fixedly connected to the upper surface of the upper shell (1), a cylinder (32) being embedded in the interior of the fixed block (31), a guide cover (33) being fixedly connected to the output end of the cylinder (32), a sleeve groove (34) being provided at the lower end of the guide cover (33), and a plurality of circular holes (35) being provided on the upper surface of the guide cover (33).

2. A new energy vehicle battery pack heat dissipation system according to claim 1, characterized in that: The battery assembly (4) includes a bottom shell (41), the bottom shell (41) is clamped on the inner wall of the upper shell (1), two fixing plates (42) are symmetrically fixedly connected to the inner wall of the bottom shell (41), a plurality of slots (43) are provided on the side walls of the two fixing plates (42), a buffer strip (44) is fixedly connected to the inner walls of the plurality of slots (43), batteries (45) are clamped inside the plurality of slots (43), the other ends of the plurality of batteries (45) are clamped inside a plurality of U-shaped clamping blocks (46), the plurality of U-shaped clamping blocks (46) are fixedly connected to the center of the lower inner wall of the bottom shell (41), and a plurality of elliptical holes (47) are provided on the surfaces of the two fixing plates (42).

3. The heat dissipation system for a new energy vehicle battery pack according to claim 1, characterized in that: The control assembly (5) includes a controller (51), the controller (51) is fixedly connected to the bottom of the bottom shell (41), the upper end of the controller (51) is plugged into the through hole (52), two conductive plates (53) are fixedly connected to the side wall of the controller (51), a plurality of connection connectors (54) are fixedly connected to the two conductive plates (53), and the plurality of connection connectors (54) are fixedly connected to the side walls of the plurality of batteries (45).

4. The heat dissipation system for a new energy vehicle battery pack according to claim 1, characterized in that: The air induction assembly (6) includes two air inlet pipes (61), the two air inlet pipes (61) are fixedly connected to the outer walls at both ends of the upper shell (1), one end of the two air inlet pipes (61) is fixedly connected to the outer wall of the same arc frame (62), an arc filter plate (63) is embedded in the opening of the arc frame (62), two vertical plates (64) are symmetrically fixedly connected to the surface of the arc frame (62), a plurality of triangular blocks (65) and a plurality of inclined plates (66) are fixedly connected to the inner walls of the two vertical plates (64), and an elliptical cylinder (67) is fixedly connected to the side walls of the two air inlet pipes (61), and the plurality of elliptical cylinders (67) pass through the upper shell (1) and are clamped in the interior of the plurality of elliptical holes (47).

5. The heat dissipation system for a new energy vehicle battery pack according to claim 1, characterized in that: The clamping notches (22) at both ends of the wind tube (21) are respectively clamped on the upper outer walls of the two batteries (45).

6. The heat dissipation system for a new energy vehicle battery pack according to claim 1, characterized in that: The length of the guide cover (33) is longer than that of the wind cover (27). An inclined opening is provided at one end of the wind cover (27), and the opening of the wind cover (27) matches the sleeve groove (34).

7. The heat dissipation system for a new energy vehicle battery pack according to claim 4, characterized in that: The lower ends of the plurality of inclined plates (66) are arranged close to the plurality of triangular blocks (65), and the triangular blocks (65) are located between the arc frame (62) and the inclined plates (66).

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