Direct-cooling heat dissipation structure for battery of electric two-wheeled vehicle

Abstract

The utility model belongs to the technical field of electric two-wheeled vehicle production, and particularly relates to an electric two-wheeled vehicle battery direct-cooling heat dissipation structure which comprises a direct-cooling plate body, and the bottom end of the direct-cooling plate body is fixedly connected with a fixing box. The direct cooling plate body comprises a connecting pipe, a first cooling pipe and a harmonica-shaped pipe; a harmonica-shaped tube is fixedly connected to the center of the inner side of the direct cooling plate body; one end of the harmonica-shaped tube is fixedly connected with a first cooling tube; the top ends and the bottom ends of the first cooling pipe and the second cooling pipe are fixedly connected with plugs; the center position of the first cooling pipe is fixedly connected with a spacer; one end of the connecting pipe away from the harmonica-shaped pipe is fixedly connected with a direct-cooling joint; the battery cells are alternately placed in the direct-cooling plate body, so that the direct-cooling plate body is in large-surface contact with the two sides of the battery cells, and a direct-cooling technology is applied to heat dissipation of the lithium battery of the electric vehicle, so that the heat exchange efficiency is improved, the temperature of the battery cells is ensured to be within a reasonable temperature difference range, the service life of the battery is prolonged, and the safety of the battery is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric two-wheeled vehicle production, in particular to a direct cooling and heat dissipation structure for a battery of an electric two-wheeled vehicle. Background Art

[0002] Electric two-wheeled vehicles are a general term for two-wheeled electric bicycles, electric motorcycles, and electric mopeds. Electric two-wheeled vehicles usually consist of five major parts: a body, an electric drive device (motor), a rechargeable battery, a charger, and a control system. Its working principle is that the chemical energy in the battery is converted into electrical energy and supplied to the electric motor. The electric motor then controls the conversion rate of electrical energy according to the instructions of the control system, converting electrical energy into mechanical energy to propel the vehicle.

[0003] Current battery cooling methods for electric two-wheelers are crucial for maintaining performance and extending battery life. Air cooling is typically used. Fans or other air flow devices located outside the battery pack direct air through the battery pack, removing heat generated by the cells. This method is cost-effective and mature, but cooling effectiveness may be limited by ambient temperature.

[0004] Electric two-wheelers are one of the most commonly used modes of transportation. With the implementation of the new national standard, there are weight requirements for electric two-wheelers. This limits the application of lead-acid batteries, making it impossible to guarantee a long driving range within a limited weight. This reflects the advantage of lithium batteries' high energy density, so solving the problem of battery heat dissipation becomes a very important technical issue. Traditional lead-acid batteries use air cooling, which is not suitable for lithium batteries. Therefore, to address this issue, a direct cooling structure for electric two-wheeler batteries is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention proposes a direct cooling and heat dissipation structure for a battery of an electric two-wheeled vehicle.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a direct cooling heat dissipation structure for an electric two-wheeled vehicle battery, comprising a cold direct cooling plate body, wherein the bottom end of the cold direct cooling plate body is fixedly connected to a fixing box; the cold direct cooling plate body comprises a connecting pipe, a first cooling pipe and a harmonica pipe; the harmonica pipe is fixedly connected to the harmonica pipe at the center position of the inner side of the cold direct cooling plate body; one end of the harmonica pipe is fixedly connected to the first cooling pipe; the end of the first cooling pipe away from the harmonica pipe is fixedly connected to the connecting pipe; the cold direct cooling plate body also comprises a second cooling pipe, a plug, a spacer and a direct cooling joint; the end of the harmonica pipe away from the first cooling pipe is fixedly connected to the second cooling pipe; the top and bottom ends of the first cooling pipe and the second cooling pipe are both fixedly connected to the plug; the center position of the first cooling pipe is fixedly connected to the spacer; the end of the connecting pipe away from the harmonica pipe is fixedly connected to the direct cooling joint; the material of the cold direct cooling plate body is aluminum alloy.

[0007] Preferably, both sides of the inner side of the fixed box are rotatably connected to rotating columns; a plurality of fixed sleeves are fixedly connected to the outer side of the rotating column and at positions corresponding to the harmonica tubes; and an adjustment plate is fixedly connected to the top of the fixed sleeve.

[0008] Preferably, both ends of the inner side of the top of the adjustment plate are fixedly connected with a clamping column; the outer side of the clamping column is slidably connected with a clamping seat; the center position of the clamping seat is threadedly connected with an adjusting screw; the top of the adjusting screw is fixedly connected with an adjusting seat; the adjusting seat and the adjustment plate are rotatably connected, and an adjusting cross slot is provided at the top of the adjusting seat.

[0009] Preferably, the end of the clamping seat close to the fixing box is fixedly connected to a clamping plate; the bottom end of the clamping plate is fixedly connected to a plurality of rubber strips.

[0010] Preferably, a protective spring is sleeved on the bottom end of the clamping seat and located on the outside of the clamping column; the top end of the protective spring is fixedly connected to the clamping seat; and the bottom end of the protective spring is fixedly connected to the adjustment plate.

[0011] Preferably, the rotating column extends away from one end of the direct cooling joint to the inside of the fixed box, and the rotating column is fixedly connected to the end of the direct cooling joint with a first conical gear; an adjusting column is rotatably connected to the inside of the fixed box and at a position corresponding to the first conical gear; both sides of the adjusting column are fixedly connected to a second conical gear; the second conical gear is meshed with the first conical gear.

[0012] Preferably, a turbine is fixedly connected to the center position of the adjusting column; a rotating handle is rotatably connected to one end of the fixing box and the position corresponding to the adjusting column; a worm is fixedly connected to the end of the rotating handle located inside the fixing box; and the worm is meshingly connected to the turbine.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a direct cooling heat dissipation structure for an electric two-wheeled vehicle battery. By alternately placing battery cells in a cold direct cooling plate body, the cold direct cooling plate body is brought into contact with large surfaces on both sides of the battery cells. Direct cooling technology is applied to the heat dissipation of lithium batteries in electric vehicles, which not only improves the heat exchange efficiency and ensures that the battery cell temperature is within a reasonable temperature difference range, but also improves the battery life and safety.

[0015] The utility model provides a direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery. The structure coordination design of the adjustment plate and the clamping plate facilitates the fixing and positioning of the battery cells placed in the direct cooling plate body, thereby preventing the battery cells from being squeezed and damaged on the harmonica tubes on the direct cooling plate body due to inertia during the movement of the two-wheeled vehicle, thereby improving the use effect of the direct cooling plate body, improving the safety of the battery cells during use, and further increasing the service life of the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the main body of the intermediate cooling direct cooling plate of the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the explosion-expanded cold plate body in the present invention;

[0020] Figure 4 It is a perspective view of a cross-section of the fixing box in the present utility model;

[0021] Figure 5 It is a three-dimensional diagram of the clamping seat and the clamping plate in the utility model;

[0022] Figure 6 It is a stereoscopic diagram of the regulating column and the turbine in the utility model.

[0023] Legend:

[0024] 1. Cooling plate body; 2. Connecting pipe; 3. First cooling pipe; 4. Harmonica pipe; 5. Second cooling pipe; 6. Plug; 7. Spacer; 8. Direct cooling joint; 9. Fixing box; 10. Rotating column; 11. Fixing sleeve; 12. Adjusting plate; 13. Clamping column; 14. Clamping seat; 15. Adjusting screw; 16. Adjusting seat; 17. Adjusting cross slot; 18. Clamping plate; 19. Rubber strip; 20. Protective spring; 21. First conical gear; 22. Adjusting column; 23. Second conical gear; 24. Turbine; 25. Worm; 26. Rotating handle. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Specific examples are given below.

[0027] See also Figures 1-6 The utility model provides a direct cooling heat dissipation structure for an electric two-wheeled vehicle battery, comprising a direct cooling plate body 1, wherein the bottom end of the direct cooling plate body 1 is fixedly connected to a fixing box 9; the direct cooling plate body 1 comprises a connecting pipe 2, a first cooling pipe 3 and a harmonica pipe 4; the harmonica pipe 4 is fixedly connected to the harmonica pipe 4 at the center position inside the direct cooling plate body 1; one end of the harmonica pipe 4 is fixedly connected to the first cooling pipe 3; the end of the first cooling pipe 3 away from the harmonica pipe 4 is fixedly connected to the connecting pipe 2; the direct cooling plate body 1 also comprises a second cooling pipe 5, a plug 6, a spacer 7 and a direct cooling joint 8; the end of the harmonica pipe 4 away from the first cooling pipe 3 is fixedly connected to the second cooling pipe 5; the top and bottom ends of the first cooling pipe 3 and the second cooling pipe 5 are fixedly connected to the plug 6; the center position of the first cooling pipe 3 is fixedly connected to the spacer 7; the end of the connecting pipe 2 away from the harmonica pipe 4 is fixedly connected to the direct cooling joint 8; the material of the direct cooling plate body 1 is aluminum alloy. During operation, the direct cooling plate body 1 is connected to a liquid cooler, and battery cells are alternately placed inside the plate body 1. The plate body 1 makes contact with the large surfaces of both sides of the battery cells. The plate body 1 is made of an aluminum alloy extruded and welded to form a closed cavity. Aluminum alloy has excellent thermal conductivity. The battery heat is indirectly transferred to the refrigerant in the closed circulation cavity through the aluminum plate. The refrigerant's physical properties of fast cooling and low evaporation temperature remove the battery heat. Using direct cooling in electric two-wheeled vehicles can significantly increase the range and life of the vehicle.

[0028] Further, such as Figure 5As shown, rotating posts 10 are rotatably connected to both sides of the inner side of the fixed box 9; multiple fixed sleeves 11 are fixedly connected to the outer sides of the rotating posts 10 at positions corresponding to the harmonica tube 4; and an adjustment plate 12 is fixedly connected to the top of each fixed sleeve 11. During operation, the rotation of the rotating posts 10 drives the fixed sleeves 11 and the adjustment plate 12 to rotate, making it easy to rotate the adjustment plate 12 into the gap of the harmonica tube 4 via the rotating posts 10.

[0029] Further, such as Figure 5 As shown, the inner ends of the top of the adjustment plate 12 are fixedly connected to clamping posts 13; the outer ends of the clamping posts 13 are slidably connected to a clamping seat 14; an adjustment screw 15 is threadedly connected to the center of the clamping seat 14; the top of the adjustment screw 15 is fixedly connected to an adjustment seat 16; the adjustment seat 16 is rotatably connected to the adjustment plate 12, and the top of the adjustment seat 16 is provided with an adjustment cross slot 17. During operation, an external rotating tool is used to connect to the adjustment seat 16 through the adjustment cross slot 17, and the rotation of the adjustment seat 16 drives the adjustment screw 15 to rotate, conveniently adjusting the height of the clamping seat 14 inside the adjustment plate 12 by rotating the adjustment screw 15.

[0030] Further, such as Figure 5 As shown, the end of the clamping seat 14 near the fixing box 9 is fixedly connected to a clamping plate 18; the bottom end of the clamping plate 18 is fixedly connected to a plurality of rubber strips 19. During operation, by moving the clamping seat 14 downward, the clamping seat 14 drives the clamping plate 18 and the rubber strips 19 to move toward the battery cell placed in the gap of the harmonica tube 4, so that the battery cell placed in the fixing box 9 is fixed, preventing the battery cell from being squeezed and damaged by the harmonica tube 4 on the direct cooling joint 8 due to inertia during the movement of the two-wheeled vehicle, thereby improving the use effect of the direct cooling joint 8, improving the safety of the battery cell during use, and further increasing the service life of the battery cell.

[0031] Further, such as Figure 5 As shown, a protective spring 20 is sheathed at the bottom end of the clamping seat 14, outside the clamping column 13. The top end of the protective spring 20 is fixedly connected to the clamping seat 14, and the bottom end of the protective spring 20 is fixedly connected to the adjustment plate 12. During operation, when the clamping seat 14 moves downward, the elastic force of the protective spring 20 reacts on the clamping plate 18 and rubber strip 19 that clamp the battery cell downward, preventing damage to the battery cell during the clamping process and improving the device's clamping effect on the battery cell.

[0032] Further, such as Figure 4 and Figure 6As shown, the rotating column 10 extends away from one end of the direct cooling joint 8 to the inside of the fixed box 9, and the rotating column 10 is fixedly connected to the end of the direct cooling joint 8 with a first bevel gear 21; the adjusting column 22 is rotatably connected to the position inside the fixed box 9 and corresponding to the first bevel gear 21; both sides of the adjusting column 22 are fixedly connected to the second bevel gear 23; the second bevel gear 23 is meshed with the first bevel gear 21. During operation, the adjusting column 22 rotates, so that the adjusting column 22 drives the first bevel gear 21 and the rotating column 10 to rotate through the second bevel gear 23, making it convenient to drive the two rotating columns 10 and multiple adjustment plates 12 to rotate simultaneously through the adjusting column 22, so as to facilitate the simultaneous clamping and fixing of multiple installed battery cells.

[0033] Further, such as Figure 6 As shown, a worm gear 24 is fixedly connected to the center of the adjustment column 22; a rotating handle 26 is rotatably connected to one end of the fixed box 9, corresponding to the adjustment column 22; a worm gear 25 is fixedly connected to the end of the rotating handle 26 located inside the fixed box 9; the worm gear 25 is meshed with the worm gear 24. During operation, by rotating the rotating handle 26 and worm gear 25, the worm gear 25 drives the adjustment column 22 through the worm gear 24, which in turn drives the clamping plate 18 to clamp the installed battery cell, further improving the device's rapid clamping effect.

[0034] Working principle: By connecting the direct cold plate body 1 with the liquid cooler, the battery cells are alternately placed in the direct cold plate body 1, and the direct cold plate body 1 is in contact with the large surfaces on both sides of the battery cells. The material of the direct cold plate body 1 is an aluminum alloy material that is extruded and welded to form a closed cavity. The aluminum alloy has good thermal conductivity. The heat of the battery is indirectly transferred to the refrigerant in the closed circulation cavity through the aluminum plate. The refrigerant uses its physical properties of fast cooling speed and low evaporation temperature to take away the heat from the battery. The use of direct cooling on electric two-wheeled vehicles can significantly improve the cruising range and the life of the electric vehicle. The rotation of the rotating column 10 drives the fixed sleeve 11 and the adjusting plate 12 to rotate, so that the adjusting plate 12 can be rotated into the gap of the harmonica tube 4 by the rotating column 10. An external rotating tool is used to connect with the adjusting seat 16 through the adjusting cross slot 17, and then the adjusting screw 15 is driven to rotate by the rotation of the adjusting seat 16. The height of the clamping seat 14 on the inner side of the adjusting plate 12 can be adjusted by rotating the adjusting screw 15. By moving the clamping seat 14 downward, the clamping seat 14 drives the clamping plate 18 and the rubber strip 19 to move toward the battery cell placed in the gap of the harmonica tube 4, so that the battery cell placed in the fixed box 9 is fixed, so as to prevent the battery cell from being squeezed and damaged by the harmonica tube 4 on the direct cooling joint 8 due to inertia during the movement of the two-wheeled vehicle, thereby improving the use effect of the direct cooling joint 8 and improving the battery cell in The safety during use further improves the service life of the battery cell. When the clamping seat 14 moves downward, the elastic characteristics of the protective spring 20 will have a reaction force on the clamping plate 18 and the rubber strip 19 that clamp the battery cell downward, preventing the battery cell from being damaged during the clamping process of the battery cell, thereby improving the clamping effect of the device on the battery cell. By rotating the adjusting column 22, the adjusting column 22 drives the first bevel gear 21 and the rotating column 10 to rotate through the second bevel gear 23, which is convenient for the adjusting column 22 to simultaneously drive the two rotating columns 10 and multiple adjusting plates 12 to rotate, so that multiple installed battery cells can be clamped and fixed at the same time. By rotating the rotating handle 26 and the worm 25, the worm 25 drives the adjusting column 22 to rotate through the turbine 24, and then drives the clamping plate 18 to clamp the installed battery cell, further improving the rapid clamping effect of the device.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A direct cooling heat dissipation structure for an electric two-wheeled vehicle battery, comprising a direct cooling plate body (1), characterized in that: The bottom end of the cold plate body (1) is fixedly connected to a fixing box (9); the cold plate body (1) comprises a connecting pipe (2), a first cold pipe (3) and a harmonica pipe (4); the harmonica pipe (4) is fixedly connected to the center position of the inner side of the cold plate body (1); one end of the harmonica pipe (4) is fixedly connected to the first cold pipe (3); the end of the first cold pipe (3) away from the harmonica pipe (4) is fixedly connected to the connecting pipe (2); the cold plate body (1) also comprises a second cold pipe (5) , a plug (6), a spacer (7) and a direct cooling joint (8); the end of the harmonica tube (4) away from the first cooling tube (3) is fixedly connected to the second cooling tube (5); the top and bottom ends of the first cooling tube (3) and the second cooling tube (5) are fixedly connected to the plug (6); the center position of the first cooling tube (3) is fixedly connected to the spacer (7); the end of the connecting pipe (2) away from the harmonica tube (4) is fixedly connected to the direct cooling joint (8); the material of the direct cooling plate body (1) is aluminum alloy.

2. The direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery according to claim 1, characterized in that: Both sides of the inner side of the fixed box (9) are rotatably connected to rotating columns (10); a plurality of fixed sleeves (11) are fixedly connected to the outer sides of the rotating columns (10) and at positions corresponding to the harmonica tubes (4); and an adjustment plate (12) is fixedly connected to the top ends of the fixed sleeves (11).

3. The direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery according to claim 2, characterized in that: The two ends of the inner side of the top of the adjusting plate (12) are fixedly connected with a clamping column (13); the outer side of the clamping column (13) is slidably connected with a clamping seat (14); the center position of the clamping seat (14) is threadedly connected with an adjusting screw (15); the top of the adjusting screw (15) is fixedly connected with an adjusting seat (16); the adjusting seat (16) is rotatably connected to the adjusting plate (12), and the top of the adjusting seat (16) is provided with an adjusting cross slot (17).

4. The direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery according to claim 3, characterized in that: The end of the clamping seat (14) close to the fixing box (9) is fixedly connected to a clamping plate (18); the bottom end of the clamping plate (18) is fixedly connected to a plurality of rubber strips (19).

5. The direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery according to claim 3, characterized in that: A protective spring (20) is sleeved on the bottom end of the clamping seat (14) and located on the outside of the clamping column (13); the top end of the protective spring (20) is fixedly connected to the clamping seat (14); and the bottom end of the protective spring (20) is fixedly connected to the adjustment plate (12).

6. The direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery according to claim 2, characterized in that: The rotating column (10) extends away from one end of the direct cooling joint (8) to the inside of the fixed box (9), and the end of the rotating column (10) away from the direct cooling joint (8) is fixedly connected to the first bevel gear (21); an adjusting column (22) is rotatably connected to the inside of the fixed box (9) and at a position corresponding to the first bevel gear (21); both sides of the adjusting column (22) are fixedly connected to the second bevel gear (23); the second bevel gear (23) is meshed with the first bevel gear (21).

7. The direct cooling and heat dissipation structure for an electric two-wheeled vehicle battery according to claim 6, characterized in that: The center position of the adjusting column (22) is fixedly connected to a turbine (24); one end of the fixing box (9) and a position corresponding to the adjusting column (22) is rotatably connected to a rotating handle (26); the end of the rotating handle (26) located inside the fixing box (9) is fixedly connected to a worm (25); the worm (25) is meshedly connected to the turbine (24).

Images