Battery cooling mechanism for electric vehicle

Abstract

The invention relates to the technical field of battery cooling, in particular to an electric vehicle battery cooling mechanism. Comprising a battery pack main body, the battery pack main body comprises a plurality of battery cabins arranged in an array mode, battery main bodies are arranged in the battery cabins, a plurality of ventilation ducts are formed in the upper portion of the inner side of the battery pack main body, a protective shell is arranged outside the battery main bodies, and a wiping assembly is arranged in a cooling interlayer. The wiping assembly is in contact with the outer wall of the battery main body, a connecting shaft is arranged at the upper end of the wiping assembly, the connecting shaft is rotationally connected with the middle part of the ventilation duct, and when the ventilation duct is internally ventilated, the connecting shaft is driven to rotate, so that the wiping assembly rotates around the periphery of the battery main body to wipe moisture on the outer wall of the battery main body. Heat is taken away through airflow, moisture is evenly smeared through the wet wiping cotton block and evaporated to absorb heat, and the dual-cooling effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of battery cooling technology, specifically to a battery cooling mechanism for electric vehicles. Background Technology

[0002] With the rapid development of electric vehicles, the heat dissipation problem of power batteries has become increasingly prominent. Traditional battery cooling methods mainly rely on air cooling or liquid cooling systems. However, air cooling has low efficiency, while liquid cooling systems are complex in structure and pose a risk of leakage. In addition, batteries are prone to generating localized high temperatures during charging and discharging. Existing heat dissipation structures cannot efficiently dissipate heat from individual battery structures, and uneven heat dissipation may lead to battery performance degradation or even thermal runaway. Therefore, there is an urgent need for a battery cooling mechanism that is simple in structure, highly efficient in heat dissipation, and capable of cooling individual battery cells separately. Summary of the Invention

[0003] To address the above problems, the present invention provides a battery cooling mechanism for electric vehicles.

[0004] The technical solution adopted by this invention to solve its technical problem is: an electric vehicle battery cooling mechanism, including a battery pack body, the battery pack body including a plurality of battery compartments arranged in an array, the battery body being disposed inside the battery compartments, a plurality of ventilation channels being disposed on the upper inner side of the battery pack body, a protective shell being disposed outside the battery body, a cooling interlayer being formed between the protective shell and the battery body, the lower part of the ventilation channels communicating with the interior of the cooling interlayer, a wiping component being disposed inside the cooling interlayer, the wiping component contacting the outer wall of the battery body, a connecting shaft being disposed at the upper end of the wiping component, the connecting shaft being rotatably connected to the middle of the ventilation channels, when the interior of the ventilation channels is ventilated, the connecting shaft is driven to rotate, causing the wiping component to rotate around the outer periphery of the battery body, wiping away moisture from the outer wall of the battery body.

[0005] As an optimization, the ventilation duct includes two parallel ventilation channels, which alternately ventilate, and a connecting shaft is rotatably connected between the two ventilation channels; The connecting shaft is equipped with two vertically arranged closed plates. The interlayer of the two ventilation channels is equipped with positioning magnetic blocks. The closed plates are equipped with connecting magnetic blocks. The air in the ventilation channels drives the closed plates to rotate, so that the two closed plates alternately connect with the positioning magnetic blocks, thereby driving the wiping assembly to swing.

[0006] As an optimization, the wiping assembly includes several wiping rods distributed circumferentially around the battery body, with a fixing ring connected to the upper end of each wiping rod, and the connecting shaft connected to the fixing ring; The inner side of the wiping rod is equipped with a wiping cotton block, and the inside of the wiping rod is equipped with a water supply channel for supplying water to the wiping cotton block to keep it moist. When the wiping assembly rotates, it evenly applies water to the outer side of the battery body.

[0007] As an optimization, the connecting shaft is coaxially arranged with the battery body, and a support base is provided at the bottom of the battery body, with a ventilation gap left between the protective shell and the support base.

[0008] As an optimization, the ventilation channels are arranged along the length of the battery pack body, and multiple ventilation channels are arranged horizontally and parallel to each other. The outer ends of the ventilation channels are closed, so that the ventilation enters the cooling interlayer downwards.

[0009] As an optimization, a connecting groove is provided on the side of the wiping rod opposite to the battery body, and the wiping cotton block is equipped with connecting wings, which are snapped into the connecting groove; Several water passages are provided between the water supply channel and the wiping cotton block.

[0010] As an optimization, the outer side of the battery pack body is equipped with two air supply pipes and one water supply pipe. The two air supply pipes are used to supply air to the ventilation ducts, and the water supply pipe is used to supply water to the wiping components.

[0011] The beneficial effects of this plan are as follows: The water supply channel continuously moistens the wiping cotton pad through the water holes to ensure uniform heat dissipation. At the same time, the ventilation gap between the support base and the protective shell further optimizes the airflow distribution. Through the synergistic effect of the ventilation channel and the wiping component, the airflow carries away heat, and the moist wiping cotton pad evenly spreads water and evaporates to absorb heat, achieving a dual cooling effect. The ventilation airflow drives the connecting shaft to rotate, which in turn drives the wiping component to automatically clean the battery surface, improving the cooling effect and enhancing battery safety. The wiping component is driven by the airflow of the battery pack's own ventilation system, requiring no additional energy and reducing system energy consumption. Attached Figure Description

[0012] Figure 1 This is an isometric view of the present invention.

[0013] Figure 2 This is an isometric view of the connection structure between the protective shell and the ventilation duct of the present invention.

[0014] Figure 3 This is a front view schematic diagram of the connection structure between the protective shell and the ventilation channel of the present invention.

[0015] Figure 4 For the present invention Figure 3 A schematic diagram of the AA cross-section structure.

[0016] Figure 5For the present invention Figure 3 A schematic diagram of the BB cross-section structure.

[0017] Figure 6 For the present invention Figure 3 A schematic diagram of the CC cross-section structure.

[0018] Figure 7 For the present invention Figure 6 A magnified structural diagram of part D.

[0019] Figure 8 This is an isometric view of the connection structure between the battery body and the wiping assembly of the present invention.

[0020] Figure 9 For the present invention Figure 8 A magnified structural diagram of part E.

[0021] Figure 10 This is a schematic diagram of the connection structure of the closed plate of the present invention.

[0022] The components are: 1. Battery pack body; 2. Battery body; 3. Connecting shaft; 4. Ventilation channel; 5. Sealing plate; 6. Positioning magnet; 7. Connecting magnet; 8. Wiping rod; 9. Wiping cotton; 10. Water supply channel; 11. Support base; 12. Protective shell; 13. Air supply pipe; 14. Water supply pipe. Detailed Implementation

[0023] like Figures 1-10 As shown, an electric vehicle battery cooling mechanism includes a battery pack body 1, which includes several arrayed battery compartments. A battery body 2 is disposed inside each battery compartment. Several ventilation channels are provided on the upper inner side of the battery pack body 1. A protective shell 12 is disposed outside the battery body 2, forming a cooling interlayer between the protective shell 12 and the battery body 2. The lower part of the ventilation channels communicates with the interior of the cooling interlayer. A wiping assembly is disposed inside the cooling interlayer, contacting the outer wall of the battery body 2. A connecting shaft 3 is disposed at the upper end of the wiping assembly, rotatably connected to the middle of the ventilation channels. When ventilation occurs inside the ventilation channels, the connecting shaft 3 rotates, causing the wiping assembly to rotate around the outer periphery of the battery body 2, wiping away moisture from the outer wall of the battery body 2.

[0024] The battery body 2 is composed of multiple individual battery cells arranged in a row, and each battery cell has a heat dissipation contact surface on its outer surface. The protective shell 12 is set on the outside of the battery body 2 and is made of lightweight aluminum alloy. The ventilation channel passes through the upper part of the protective shell 12, and air enters the cooling interlayer through the ventilation channel to carry away the heat on the surface of the battery body 2.

[0025] The protective shell 12 can be designed as a split shell, consisting of two halves of the shell fixed together by bolts. The interior can be provided with serpentine ventilation channels, and the inner wall of the channels is coated with thermally conductive silicone to enhance heat exchange efficiency.

[0026] A vertical ventilation gap is formed between adjacent wiping components, allowing air to flow downwards quickly and exit through the bottom of the protective housing 12.

[0027] like Figures 6-8 As shown, the ventilation channel includes two parallel ventilation channels 4, which alternately ventilate, and the connecting shaft 3 is rotatably connected between the two ventilation channels 4; The connecting shaft 3 is equipped with two vertically arranged sealing plates 5, the interlayer of the two ventilation channels 4 is equipped with positioning magnetic blocks 6, and the sealing plates 5 are equipped with connecting magnetic blocks 7. The air in the ventilation channels 4 drives the sealing plates 5 to rotate, so that the two sealing plates 5 alternately connect with the positioning magnetic blocks 6, thereby driving the wiping assembly to swing.

[0028] The sealing plate 5 adopts a magnetic design and is located inside the ventilation channel. The airflow pushes the sealing plate 5 to rotate, thereby driving the wiping assembly to rotate.

[0029] The connecting shaft 3 is vertically positioned and is coaxial with the battery body 2.

[0030] like Figure 5 and Figure 8 As shown, the wiping assembly includes a plurality of wiping rods 8 distributed circumferentially around the battery body 2, and a fixing ring is connected to the upper end of the wiping rod 8. The connecting shaft 3 is connected to the fixing ring. The inner side of the wiping rod 8 is provided with a wiping cotton block 9, and the inside of the wiping rod 8 is provided with a water supply channel 10. The water supply channel 10 is used to supply water to the wiping cotton block 9 to keep the wiping cotton block 9 moist. When the wiping assembly rotates, the water is evenly applied to the outside of the battery body 2.

[0031] The wiping cotton pad 9 is made of highly absorbent fiber material and is fixed on the connecting shaft 3, making close contact with the battery surface. The water supply channel 10 is located inside the wiping rod 8. The water supply channel 10 is connected to a miniature water pump through a hose, which delivers cooling fluid into the water supply channel 10 to continuously wet the wiping cotton pad 9.

[0032] like Figure 6 and Figure 8 As shown, the connecting shaft 3 is coaxially arranged with the battery body 2, and a support base 11 is provided at the bottom of the battery body 2. A ventilation gap is left between the protective shell 12 and the support base 11.

[0033] The support base 11 is used to support the battery body 2. A 3-5mm ventilation gap is left between the support base 11 and the protective shell 12, and the gap is filled with porous ceramic material to evenly distribute airflow. The cooling jacket is located in the jacket of the protective shell 12, and contains a phase change material (such as paraffin) to assist in heat absorption.

[0034] like Figure 1 As shown, the ventilation channels are arranged along the length of the battery pack body 1, and multiple ventilation channels are arranged horizontally and parallel to each other. The outer ends of the ventilation channels are closed, allowing ventilation to enter the cooling interlayer downwards.

[0035] like Figure 5 As shown, the wiping rod 8 has a connecting groove on the side opposite to the battery body 2, and the wiping cotton block 9 is equipped with connecting wings, which are snapped into the connecting groove; Several water passages are provided between the water supply channel 10 and the wiping cotton block 9.

[0036] The rotating wiping cotton block 9 evenly applies water to the battery surface. The water evaporates and absorbs heat, achieving localized cooling. At the same time, the wiping action can remove dust or condensation from the battery surface.

[0037] like Figure 1 As shown, the outer side of the battery pack body 1 is equipped with two air supply pipes 13 and one water supply pipe 14. The two air supply pipes 13 are used to supply air to the ventilation ducts, and the water supply pipe 14 is used to supply water to the wiping assembly.

[0038] Each set of air supply ducts connects to multiple battery pack bodies 2 simultaneously, enabling simultaneous ventilation and heat exchange for multiple battery pack bodies 2. The length of the air supply duct is set along the length of the battery pack body 1.

[0039] How to use: Check the integrity of the battery pack: ensure that the main body 1 of the battery pack is undamaged, the protective shell 12 is securely installed with the main body 2 of the battery, and the ventilation ducts are not blocked; Connect the two air supply pipes 13 to the vehicle ventilation system and the water supply pipe 14 to the coolant circulation system (mini water pump or vehicle water tank). Manually rotate the connecting shaft 3 to confirm that the wiping assembly (wiping rod 8, wiping cotton block 9) can rotate freely and is in contact with the surface of the battery body 2, and check whether the magnetic positioning function of the sealing plate 5 is normal. When the vehicle ventilation system is activated, airflow enters the ventilation duct 4 through the air supply pipe 13. Airflow alternately enters the two parallel ventilation channels 4, causing the sealing plate 5 to swing; Turn on the coolant circulation pump, and the water flows into the water supply channel 10 through the water supply pipe 14. The water flows through the water hole to wet the wiping cotton 9, ensuring that the wiping cotton 9 is evenly moistened but without dripping. The airflow in the ventilation channel 4 pushes the sealing plate 5 to rotate, which in turn drives the connecting shaft 3 to rotate. The connecting shaft 3 drives the wiping rod 8 to rotate around the battery body 2 through the fixing ring. The damp wiping cotton 9 evenly applies moisture to the surface of the battery body 2, and the moisture evaporates, carrying away the heat. Airflow further enhances heat dissipation through the cooling interlayer and ventilation gaps; After use, stop the water supply system first, then turn off the air supply system to avoid residual moisture on the wiping cotton pad 9; Regularly disassemble and wipe the cotton pads to check for wear and tear, and replace any aged or contaminated cotton pads.

[0040] When in use, the two ventilation channels 4 are ventilated alternately, which pushes the sealing plate 5 to swing inside the two ventilation channels 4, so that the two ventilation channels 4 are kept open alternately. Ventilation enters the protective shell 12 from top to bottom, carrying away the heat from the surface of the battery body 2.

[0041] The above-described specific embodiments are merely specific examples of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product form and style of the above-described specific embodiments. Any electric vehicle battery cooling mechanism that conforms to the claims of the present invention and any appropriate changes or modifications made to it by those skilled in the art should fall within the patent protection scope of the present invention.

Claims

1. A battery cooling mechanism for an electric vehicle, comprising a battery pack body (1), wherein the battery pack body (1) includes a plurality of battery compartments arranged in an array, and a battery body (2) is disposed inside the battery compartment, characterized in that: The upper inner side of the battery pack body (1) is provided with several ventilation channels. The outer side of the battery body (2) is provided with a protective shell (12). A cooling interlayer is formed between the protective shell (12) and the battery body (2). The lower part of the ventilation channels is connected to the interior of the cooling interlayer. A wiping component is arranged inside the cooling interlayer. The wiping component is in contact with the outer wall of the battery body (2). A connecting shaft (3) is arranged at the upper end of the wiping component. The connecting shaft (3) is rotatably connected to the middle of the ventilation channels. When the ventilation channels are ventilated, the connecting shaft (3) is driven to rotate, so that the wiping component rotates around the outer periphery of the battery body (2) and wipes the moisture off the outer wall of the battery body (2).

2. The electric vehicle battery cooling mechanism according to claim 1, characterized in that: The ventilation duct includes two parallel ventilation channels (4), which alternately ventilate, and the connecting shaft (3) is rotatably connected between the two ventilation channels (4); The connecting shaft (3) is equipped with two vertically arranged closed plates (5), and the interlayer of the two ventilation channels (4) is equipped with positioning magnetic blocks (6). The closed plates (5) are equipped with connecting magnetic blocks (7). The wind in the ventilation channels (4) drives the closed plates (5) to rotate, so that the two closed plates (5) are alternately connected with the positioning magnetic blocks (6), thereby driving the wiping assembly to swing.

3. The electric vehicle battery cooling mechanism according to claim 1, characterized in that: The wiping assembly includes several wiping rods (8) circumferentially distributed around the battery body (2), with a fixing ring connected to the upper end of each wiping rod (8), and the connecting shaft (3) connected to the fixing ring. The inner side of the wiping rod (8) is provided with a wiping cotton block (9), and the inside of the wiping rod (8) is provided with a water supply channel (10). The water supply channel (10) is used to supply water to the wiping cotton block (9) so that the wiping cotton block (9) is kept moist. When the wiping assembly rotates, the water is evenly applied to the outside of the battery body (2).

4. The electric vehicle battery cooling mechanism according to claim 1, characterized in that: The connecting shaft (3) is coaxially arranged with the battery body (2), and a support base (11) is provided at the bottom of the battery body (2). A ventilation gap is left between the protective shell (12) and the support base (11).

5. The electric vehicle battery cooling mechanism according to claim 1, characterized in that: The ventilation channels are arranged along the length of the battery pack body (1), and multiple ventilation channels are arranged horizontally and parallel to each other. The outer ends of the ventilation channels are closed, so that the ventilation enters the cooling interlayer downwards.

6. The electric vehicle battery cooling mechanism according to claim 3, characterized in that: The wiping rod (8) has a connecting groove on the side opposite to the battery body (2), and the wiping cotton block (9) is equipped with connecting wings, which are snapped into the connecting groove; Several water passages are provided between the water supply channel (10) and the wiping cotton block (9).

7. The electric vehicle battery cooling mechanism according to claim 1, characterized in that: The outer side of the battery pack body (1) is provided with two air supply pipes (13) and one water supply pipe (14). The two air supply pipes (13) are used to supply air to the ventilation ducts, and the water supply pipe (14) is used to supply water to the wiping assembly.

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