A sodium-ion battery pack with air-cooled and high-efficiency heat dissipation

Abstract

The present invention relates to the technical field of heat dissipation for new energy vehicle battery packs, and discloses a sodium-ion battery pack with efficient air cooling, comprising: a box body, inside which a support plate is fixedly installed, and on both sides of which symmetrically arranged heat dissipation components and air circulation components are provided. A box cover is fixedly installed at the top of the box body, and a positive connection column and a negative connection column are respectively fixedly installed on both sides of the top of the box cover. In the present invention, single sodium-ion batteries are installed on a battery installation frame, and there are sandwich channels on both sides of each single sodium-ion battery. Air enters the sandwich channels through the air inlet on one side of the battery installation frame and flows out from the air outlet on the other side. With the effect that the air flow directions in the sandwich channels on both sides are opposite, it can be realized that one side of each single sodium-ion battery on the battery installation frame is located in the front section of the cooling channel, while the other side is located in the rear section of the cooling channel. In this way, each single sodium-ion battery on the battery installation frame can be uniformly cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation for new energy vehicle battery packs, and particularly to a sodium-ion battery pack with efficient air-cooled heat dissipation. Background Art

[0002] Sodium-ion batteries are regarded as a promising energy storage solution due to their abundant resources, low cost, and suitable electrochemical properties. This enables sodium-ion batteries to play an important role in the field of new energy vehicles, and with their advantages in terms of cost, environmental protection, and resource sustainability, they are of great significance for promoting the growth and technological innovation of this industry. With the maturity of technology and the formation of the industrial chain, battery packs assembled from sodium-ion batteries are expected to become a key component in the field of new energy vehicles in the future. However, like other types of battery packs, sodium-ion battery packs are prone to heat generation under high loads, and overheating can accelerate battery aging and may cause safety accidents. Therefore, an effective heat dissipation mechanism is crucial for ensuring the performance and safety of the battery pack.

[0003] Existing measures to solve overheating of battery packs generally mainly include liquid cooling measures and air cooling measures. Among them, the commonly used air cooling measure is to install a fan on the entire outer shell of the battery pack to cool the entire battery pack using the fan. However, the fan often blows air at the battery pack in a fixed direction only. After the cold air exchanges heat with the single cells inside the battery pack, as the temperature of the cold air rises, the heat exchange effect on the single cells will gradually weaken. Therefore, for the single cells at the rear section of the battery pack, their cooling effect is not as good as that of the battery cells at the front section. Secondly, the air flow direction blown by the fan on the battery pack is fixed, further exacerbating the problem of uneven heat dissipation. Since air cooling relies on the air flow to carry away heat and the air flow direction remains unchanged all the time, the single cells at the rear section of the battery pack cannot obtain sufficient cooling, resulting in the single cells at the rear section of the battery pack being prone to overheating during long-term use, thereby shortening their service life. Based on this, the present invention purposefully provides a sodium-ion battery pack with efficient air-cooled heat dissipation that can evenly dissipate heat from the entire battery pack. Summary of the Invention

[0004] The purpose of the present invention is to provide a sodium-ion battery pack with efficient air-cooled heat dissipation that can evenly dissipate heat from the entire battery pack in view of the deficiencies of the prior art, so as to solve the technical problem of uneven heat dissipation caused by traditional air cooling.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A sodium-ion battery pack with efficient air-cooled heat dissipation, comprising:

[0007] The box body is internally fixedly installed with a support plate, and both sides thereof are provided with symmetrically arranged heat dissipation components and air circulation components. The top end of the box body is fixedly installed with a box cover. On both sides of the top of the box cover, a positive connection column and a negative connection column are respectively fixedly installed. The support plate is fixedly installed with a battery installation frame. A plurality of interlayer channels are formed in the battery installation frame. A plurality of single sodium-ion batteries are correspondingly arranged between every two adjacent interlayer channels. Each single sodium-ion battery is inserted into the battery installation frame;

[0008] The moving plates, two moving plates are respectively arranged on both sides of the battery installation frame. A plurality of air outlets and air inlets are linearly and equally spaced on each moving plate. The air outlets and air inlets are arranged in a staggered manner and the height of the air outlets is higher than that of the air inlets. The air outlets on one side of the battery installation frame and the air outlets on the other side of the battery installation frame are arranged in a staggered manner. The interlayer channels cooperate with the air outlets on one side of the battery installation frame and the air inlets on the other side of the battery installation frame. The two heat dissipation components respectively cooperate with the air outlets on both sides, and the two air circulation components respectively cooperate with the air inlets on both sides.

[0009] As a further solution of the present invention: both of the two moving plates are slidably connected to the battery installation frame. A telescopic member for driving the moving plates to reciprocate is arranged in the box body, and the two moving plates move synchronously. When the moving plates reciprocate, one air outlet will cooperate with two adjacent interlayer channels back and forth, and one air inlet will cooperate with two adjacent interlayer channels back and forth.

[0010] As a further solution of the present invention: the two moving plates are connected by a connecting plate.

[0011] As a further solution of the present invention: the heat dissipation component includes a heat dissipation fan and an air outlet pipe. The air outlet pipe is fixedly installed on the inner wall of the box body and is slidably connected to the moving plate. The heat dissipation fan is fixedly installed on the box body. When air flows out from the air outlet, the air enters the air outlet pipe and is discharged through the heat dissipation fan.

[0012] As a further solution of the present invention: the air circulation component includes an air inlet pipe and a cold air diversion cavity. The cold air diversion cavity is formed inside the box body and is communicated with the connection port. The air inlet pipe is fixedly installed on the inner wall of the box body. When air enters the cold air diversion cavity from the connection port, the air will enter the air inlet through the air inlet pipe.

[0013] As a further solution of the present invention: baffles are fixedly installed at both ends of the moving plate, and the baffles are in contact with the air outlet pipe.

[0014] As a further solution of the present invention: a handle is rotatably installed on the box cover, and a groove is formed on the box cover. The groove cooperates with the handle.

[0015] As a further solution of the present invention: first labels and second labels are respectively arranged on both sides of the top of the box cover, the first label corresponds to the positive connection column, and the second label corresponds to the negative connection column.

[0016] Advantages of the present invention:

[0017] 1. In the present invention, the single sodium-ion battery is installed on the battery installation frame. There are sandwich channels on both sides of each single sodium-ion battery. Air will enter the sandwich channel through the air inlet on one side of the battery installation frame and flow out through the air outlet on the other side of the battery installation frame, and finally be discharged from the box body through the heat dissipation component. And the air flow directions in the sandwich channels on both sides of each single sodium-ion battery are opposite. With such a design, no matter where the single sodium-ion battery is specifically installed, one side of it is located in the front section of the cooling channel, and the other side is located in the rear section of the cooling channel. The cooling effect in the front section of the cooling channel can offset the influence of the relatively poor cooling in the rear section of the cooling channel. In this way, each single sodium-ion battery on the battery installation frame can receive a uniform heat dissipation effect, avoiding the problem that some single sodium-ion batteries are located in the rear section of the cooling channel due to traditional air cooling, resulting in poor heat dissipation effect and easy heat accumulation.

[0018] 2. In the present invention, before and after the moving plate moves, the air flow direction in the same sandwich channel will change. Thus, before the moving plate moves, the single sodium-ion battery is located in the rear section of the cooling channel, and after the moving plate moves, the single sodium-ion battery will be located in the front section of the cooling channel. Changing the relative position of the single sodium-ion battery can make each part of the single sodium-ion battery be located in the front section of the cooling channel at the corresponding time, so as to make the heat dissipation effect more uniform.

[0019] 3. In the present invention, changing the air flow direction in the same sandwich channel can also make the two sides of the single sodium-ion battery alternately located in the front section and the rear section of the cooling channel, so as to avoid the problem that one side of the single sodium-ion battery is always located in the rear section of the cooling channel, resulting in relatively weak heat dissipation effect. Description of the drawings

[0020] The present invention will be further described below with reference to the drawings.

[0021] Figure 1 is the schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is the schematic diagram of the sectional structure of the box body in the present invention;

[0023] Figure 3 is the schematic diagram of the sectional structure of the battery installation frame in the present invention;

[0024] Figure 4 is the schematic diagram of the connection structure between the support plate and the battery installation frame in the present invention;

[0025] Figure 5 This is a view of the cooperation between the moving plate and the sandwich channel in the present invention;

[0026] Figure 6 This is a view of the cooperation between the moving plate and the sandwich channel in the present invention;

[0027] Figure 7 This is a schematic diagram of the connection structure between the box body and the support plate in the present invention.

[0028] In the figure: 1. Box body; 2. Cooling fan; 3. Support plate; 4. Battery installation frame; 5. Single sodium-ion battery; 6. Sandwich channel; 7. Moving plate; 701. Air outlet; 702. Air inlet; 703. Baffle; 8. Air outlet pipe; 9. Air inlet pipe; 10. Cold air diversion cavity; 11. Connection port; 12. Connection plate; 13. Box cover; 14. Handle; 15. Groove; 16. Positive connection post; 1601. First label; 17. Negative connection post; 1701. Second label. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] Please refer to Figures 1-7 As shown, the present invention is a sodium-ion battery pack with air-cooled and efficient heat dissipation, including:

[0031] A box body 1, inside which a support plate 3 is fixedly installed, and heat dissipation components and air circulation components are symmetrically arranged on both sides thereof. A box cover 13 is fixedly installed at the top of the box body 1. A positive connection post 16 and a negative connection post 17 are respectively fixedly installed on both sides of the top of the box cover 13. A battery installation frame 4 is fixedly installed on the support plate 3. A plurality of sandwich channels 6 are formed in the battery installation frame 4. A plurality of single sodium-ion batteries 5 are correspondingly arranged between every two adjacent sandwich channels 6. Each single sodium-ion battery 5 is inserted into the battery installation frame 4;

[0032] The moving plates 7 are provided on both sides of the battery mounting frame 4 respectively. A plurality of air outlets 701 and air inlets 702 are linearly and equidistantly arranged on each moving plate 7. The air outlets 701 and air inlets 702 are arranged in a staggered manner, and the height of the air outlets 701 is higher than that of the air inlets 702. The air outlets 701 on one side of the battery mounting frame 4 are arranged in a staggered manner with the air outlets 701 on the other side of the battery mounting frame 4. The sandwich channel 6 cooperates with the air outlet 701 on one side of the battery mounting frame 4 and the air inlet 702 on the other side of the battery mounting frame 4. Two heat dissipation components respectively cooperate with the air outlets 701 on both sides, and two air circulation components respectively cooperate with the air inlets 702 on both sides.

[0033] In actual application of this embodiment, when the heat dissipation component is started, the air outside the box body 1 can be pumped into its interior through the connection port 11. Then, under the guiding action of the air circulation component, the air will enter the sandwich channel 6 through the air inlet 702 on one side of the battery mounting frame 4 and flow out from the air outlet 701 on the other side of the battery mounting frame 4. Finally, it is discharged from the box body 1 through the heat dissipation component. When the air flows in the sandwich channel 6, it will contact the surfaces of each single sodium-ion battery 5 on both sides of the sandwich channel 6 for heat exchange, so as to achieve the basic air-cooling effect. At this time, the sandwich channel 6 can be regarded as a cooling channel.

[0034] There is a sandwich channel 6 on both sides of each single sodium-ion battery 5. And due to the different distribution positions of the air outlets 701 and air inlets 702 on the moving plates 7 on both sides of the battery mounting frame 4, Figure 3 taking the figure shown as an example, after the air enters the box body 1 from the connection port 11, under the action of the heat dissipation components on both sides, a part of the air enters the sandwich channel 6 through the air inlet 702 on the left side of the battery mounting frame 4 and then flows out from the air outlet 701 on the right side of the battery mounting frame 4; while another part of the air enters the sandwich channel 6 through the air inlet 702 on the right side of the battery mounting frame 4 and then flows out from the air outlet 701 on the left side of the battery mounting frame 4. This realizes the effect that the air flow directions in the sandwich channels 6 on both sides of each single sodium-ion battery 5 are opposite. With such a design, no matter where the single sodium-ion battery 5 is specifically installed, one side of it is located in the front section of the cooling channel, and the other side is located in the rear section of the cooling channel. The cooling effect in the front section of the cooling channel can offset the influence of the poor cooling effect in the rear section of the cooling channel. In this way, each single sodium-ion battery 5 on the battery mounting frame 4 can receive a uniform heat dissipation effect, avoiding the problem that some single sodium-ion batteries 5 are located in the rear section of the cooling channel due to traditional air cooling, resulting in poor heat dissipation effect and easy heat accumulation.

[0035] As Figures 2-7As shown, as a preferred embodiment of the present invention, both of the two moving plates 7 are slidably connected to the battery mounting frame 4. A telescopic member for driving the reciprocating movement of the moving plate 7 is provided in the box body 1, and the two moving plates 7 move synchronously. When the moving plate 7 reciprocates, one air outlet 701 will cooperate with the adjacent two sandwich channels 6 back and forth, and one air inlet 702 will cooperate with the adjacent two sandwich channels 6 back and forth.

[0036] In one case of this embodiment, the telescopic member can be selected from components such as electric cylinders and electric telescopic rods, or other mechanisms capable of realizing reciprocating translational motion can also be selected. This embodiment does not make specific limitations here.

[0037] In the actual application of this embodiment, taking Figure 5 and Figure 6 shown as an example, in Figure 5 , the moving plate 7 is in the initial state. The air flow direction in the sandwich channel 6 on the right side of the single sodium-ion battery 5 shown by the label is from right to left, while the air flow direction in the sandwich channel 6 on its left side is from left to right; and in Figure 6 , the moving plate 7 is in the moved state. The air flow direction in the sandwich channel 6 on the right side of the single sodium-ion battery 5 shown by the label is from left to right, while the air flow direction in the sandwich channel 6 on its left side is from right to left. It can be seen that when the moving plate 7 moves back and forth, the air flow direction in the same sandwich channel 6 will change. Thus, before the moving plate 7 moves, the single sodium-ion battery 5 is located in the rear section of the cooling channel, and after the moving plate 7 moves, the single sodium-ion battery 5 will be located in the front section of the cooling channel. Changing the relative position of the single sodium-ion battery 5 in this way can enable each part of the single sodium-ion battery 5 to be located in the front section of the cooling channel at the corresponding time, thereby making the heat dissipation effect more uniform;

[0038] Moreover, changing the air flow direction in the same sandwich channel 6 can also make both sides of the single sodium-ion battery 5 alternately in the front section and the rear section of the cooling channel, so as to avoid the problem that one side of the single sodium-ion battery 5 is always in the rear section of the cooling channel, resulting in a relatively weak heat dissipation effect.

[0039] As Figure 5 shown, as a preferred embodiment of the present invention, the two moving plates 7 are connected by a connecting plate 12.

[0040] In the actual application of this embodiment, the two moving plates 7 are connected by the connecting plate 12. In this way, only one telescopic member is needed to drive the two moving plates 7 to move synchronously, thus saving energy.

[0041] As Figures 2-3As shown, as a preferred embodiment of the present invention, the heat dissipation assembly includes a heat dissipation fan 2 and an air outlet pipe 8. The air outlet pipe 8 is fixedly installed on the inner wall of the box body 1 and is slidably connected to the moving plate 7. The heat dissipation fan 2 is fixedly installed on the box body 1. When air flows out from the air outlet 701, the air enters the air outlet pipe 8 and is discharged through the heat dissipation fan 2.

[0042] In actual application of this embodiment, both heat dissipation fans 2 on both sides of the box body 1 are started. The suction force generated by the heat dissipation fans 2 will suck external air into the box body 1 through the connection port 11. Under the action of the air circulation assembly, the air will pass through the sandwich channel 6 and flow out from the air outlet 701. The air flows out from the air outlet 701, enters the air outlet pipe 8, and is discharged through the heat dissipation fan 2, thus achieving the purpose of exhaust heat dissipation.

[0043] As Figures 2-3 shown, as a preferred embodiment of the present invention, the air circulation assembly includes an air inlet pipe 9 and a cold air diversion chamber 10. The cold air diversion chamber 10 is opened inside the box body 1 and is communicated with the connection port 11. The air inlet pipe 9 is fixedly installed on the inner wall of the box body 1. When air enters the cold air diversion chamber 10 from the connection port 11, the air will enter the air inlet 702 through the air inlet pipe 9.

[0044] In actual application of this embodiment, after the air passes through the connection port 11, it will enter the cold air diversion chamber 10. The air in the cold air diversion chamber 10 will enter the air inlet 702 through the air inlet pipes 9 on both sides respectively, and then enter the sandwich channel 6, and then be discharged through the heat dissipation assembly, thereby achieving the effect of air-cooled heat dissipation.

[0045] As Figure 5 shown, as a preferred embodiment of the present invention, baffles 703 are fixedly installed at both ends of the moving plate 7, and the baffles 703 are in contact with the air outlet pipe 8.

[0046] In actual application of this embodiment, when the moving plate 7 moves under the action of the telescopic member, the baffles 703 at both ends of the moving plate 7 will be in contact with the air outlet pipe 8, thereby restricting the moving range of the moving plate 7 and ensuring that the air outlets 701 and air inlets 702 can be aligned with the sandwich channel 6 before and after the moving plate 7 moves.

[0047] As Figure 1 shown, as a preferred embodiment of the present invention, a handle 14 is rotatably installed on the box cover 13, and a groove 15 is opened on the box cover 13. The groove 15 cooperates with the handle 14.

[0048] In actual application of this embodiment, when using the box body 1, the handle 14 located in the groove 15 can be manually rotated, and then the user can lift the handle 14 to achieve the purpose of facilitating the movement of the box body 1.

[0049] As Figure 1 shown, as a preferred embodiment of the present invention, on both sides of the top of the box cover 13, a first label 1601 and a second label 1701 are respectively provided. The first label 1601 corresponds to the positive connection post 16, and the second label 1701 corresponds to the negative connection post 17.

[0050] In actual application of this embodiment, the specific graphic of the first label 1601 is "+", and the specific graphic of the second label 1701 is "-". In this way, the user can visually observe the positive connection post 16 and the negative connection post 17, improving the clarity of discrimination.

[0051] Working principle of the present invention: In the above embodiment of the present invention, a sodium ion battery pack with air-cooled and efficient heat dissipation is provided. When the heat dissipation component is started, the air outside the box body 1 can be pumped into its interior through the connection port 11. Then, under the guiding action of the air circulation component, the air will enter the sandwich channel 6 through the air inlet 702 on one side of the battery mounting frame 4 and flow out from the air outlet 701 on the other side of the battery mounting frame 4, and finally be discharged from the box body 1 through the heat dissipation component. When the air flows in the sandwich channel 6, it will contact the surfaces of each single sodium ion battery 5 on both sides of the sandwich channel 6 for heat exchange, thus achieving the basic air-cooled effect. At this time, the sandwich channel 6 can be regarded as a cooling channel. There is a sandwich channel 6 on both sides of each single sodium ion battery 5, and due to the different distribution positions of the air outlets 701 and air inlets 702 on the moving plates 7 on both sides of the battery mounting frame 4, the air flow directions in the sandwich channels 6 on both sides of each single sodium ion battery 5 are opposite. With such a design, no matter where the single sodium ion battery 5 is installed, one side of it is located in the front section of the cooling channel, and the other side is located in the rear section of the cooling channel. The cooling effect in the front section of the cooling channel can offset the influence of the relatively poor cooling effect in the rear section of the cooling channel. In this way, each single sodium ion battery 5 on the battery mounting frame 4 can receive a uniform heat dissipation effect.

[0052] The above has described a detailed description of an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A sodium-ion battery pack with air-cooled and high-efficiency heat dissipation, characterized in that, Including: A box body (1) with a support plate (3) fixedly installed therein, and heat dissipation components and air circulation components symmetrically arranged on both sides thereof. A box cover (13) is fixedly installed at the top of the box body (1). Positive connection columns (16) and negative connection columns (17) are respectively fixedly installed on both sides of the top of the box cover (13). A battery installation frame (4) is fixedly installed on the support plate (3). A plurality of sandwich channels (6) are formed in the battery installation frame (4). A plurality of single sodium-ion batteries (5) are correspondingly arranged between every two adjacent sandwich channels (6). Each single sodium-ion battery (5) is inserted into the battery installation frame (4); Moving plates (7), with two moving plates (7) respectively arranged on both sides of the battery installation frame (4). A plurality of air outlets (701) and air inlets (702) are linearly and equidistantly formed on each moving plate (7). The air outlets (701) and the air inlets (702) are arranged in a staggered manner, and the height of the air outlets (701) is higher than that of the air inlets (702). The air outlets (701) on one side of the battery installation frame (4) are arranged in a staggered manner with the air outlets (701) on the other side of the battery installation frame (4). The sandwich channels (6) cooperate with the air outlets (701) on one side of the battery installation frame (4) and the air inlets (702) on the other side of the battery installation frame (4). The two heat dissipation components respectively cooperate with the air outlets (701) on both sides, and the two air circulation components respectively cooperate with the air inlets (702) on both sides; and The two moving plates (7) are both slidably connected to the battery installation frame (4). A telescopic member for driving the moving plates (7) to reciprocate is arranged in the box body (1), and the two moving plates (7) move synchronously. When the moving plates (7) reciprocate, one air outlet (701) will cooperate with two adjacent sandwich channels (6) back and forth, and one air inlet (702) will cooperate with two adjacent sandwich channels (6) back and forth.

2. The sodium-ion battery pack with air-cooled high-efficiency heat dissipation according to claim 1, wherein The two moving plates (7) are connected by a connecting plate (12).

3. The sodium-ion battery pack with air-cooled high-efficiency heat dissipation according to claim 1, wherein, The heat dissipation component includes a heat dissipation fan (2) and an air outlet pipe (8). The air outlet pipe (8) is fixedly installed on the inner wall of the box body (1) and is slidably connected to the moving plate (7). The heat dissipation fan (2) is fixedly installed on the box body (1). When air flows out from the air outlet (701), the air enters the air outlet pipe (8) and is discharged through the heat dissipation fan (2).

4. The sodium-ion battery pack with air-cooled high-efficiency heat dissipation according to claim 1, characterized in that, The air circulation component includes an air inlet pipe (9) and a cold air diversion cavity (10). The cold air diversion cavity (10) is formed inside the box body (1) and is communicated with a connection port (11). The air inlet pipe (9) is fixedly installed on the inner wall of the box body (1). When air enters the cold air diversion cavity (10) from the connection port (11), the air will enter the air inlet (702) through the air inlet pipe (9).

5. The sodium-ion battery pack with air-cooled high-efficiency heat dissipation according to claim 3, wherein Both ends of the moving plate (7) are fixedly installed with baffles (703), and the baffles (703) are in contact with the air outlet pipe (8).

6. The sodium ion battery pack with air-cooled high-efficiency heat dissipation according to claim 1, wherein A handle (14) is rotatably installed on the box cover (13), and a groove (15) is formed on the box cover (13), and the groove (15) cooperates with the handle (14).

7. The sodium-ion battery pack with air-cooled and high-efficiency heat dissipation according to claim 1, wherein, On both sides of the top of the box cover (13), a first label (1601) and a second label (1701) are respectively arranged. The first label (1601) corresponds to the positive connection column (16), and the second label (1701) corresponds to the negative connection column (17).

Images