CN220796860U - Battery pack and vehicle - Google Patents

Abstract

The battery pack comprises a box body and a battery pack, wherein an air inlet duct is arranged in the box body and used for enabling air flow to flow in a first direction in the air inlet duct, and the battery pack comprises a plurality of battery cores which are arranged side by side; the battery pack also comprises a battery cell air duct plate, at least one side of each battery cell is provided with the battery cell air duct plate, an inter-battery cell air duct is defined between the battery cell air duct plate and the adjacent battery cells, and the inter-battery cell air duct is communicated with the air inlet air duct; the electric core air duct plate is inclined relative to the first direction, and the electric core air duct plate and the first direction are arranged at an obtuse angle, so that air flow in the air inlet air duct can enter the air duct between the electric cores along the second direction which is obtuse with the first direction. Through above-mentioned technical scheme, it is because the wind channel is obtuse angle setting with the air inlet wind channel between the electric core, consequently can reduce the resistance that the air current enters into the wind channel between the electric core from the air inlet wind channel to make the air current more smooth, enter into in the wind channel between the electric core fast, promote radiating efficiency.

Description

Battery pack and vehicle

Technical Field

The disclosure relates to the technical field of battery packs, in particular to a battery pack and a vehicle.

Background

The cooling of the battery pack mainly comprises three cooling modes of air cooling, refrigerant cooling and water cooling. The pure electric buses in the current market mainly use air cooling. The battery pack generally comprises a box body, an electric core and an electric core air duct plate, an air inlet duct is arranged in the box body, an inter-electric-core air duct is formed between the side wall of the electric core and the electric core air duct plate, and when a fan enters the box body from the air inlet duct, cooling air blows through the side face of the electric core, so that heat generated by the electric core is taken away, and cooling of the electric core is realized. However, the included angle between the existing air inlet duct and the air duct between the battery cells is generally a right angle, and when cooling air enters the air duct between the battery cells from the air inlet duct, larger resistance is generated, which affects the heat dissipation efficiency of the battery pack.

Disclosure of Invention

An object of the present disclosure is to provide a battery pack and a vehicle to solve the technical problems existing in the related art.

In order to achieve the above object, according to a first aspect of the present disclosure, there is provided a battery pack including a case having an air inlet duct provided therein for allowing an air flow to flow in a first direction therein, and a battery pack including a plurality of cells arranged side by side;

the battery pack further comprises battery cell air duct plates, at least one side of each battery cell is provided with the battery cell air duct plate, an inter-battery cell air duct is defined between the battery cell air duct plate and the adjacent battery cell, and the inter-battery cell air duct is communicated with the air inlet air duct;

the electric core air duct plate is inclined relative to the first direction, and the electric core air duct plate and the first direction are arranged at an obtuse angle, so that air flow in the air inlet air duct can enter the air duct between the electric cores along a second direction which is obtuse with the first direction.

Optionally, each of the electric cells is inclined in the first direction, and each of the electric cells is arranged at an obtuse angle with the first direction.

Optionally, the electric core and the electric core air duct board are parallel to each other.

Optionally, the electric core air duct board is arranged between every two adjacent electric cores, the electric core air duct board comprises a board body and a first convex rib arranged on the board body, and the board body is provided with a first surface and a second surface which are opposite along the thickness direction of the board body;

the first surface is provided with the first convex rib, the first convex rib is propped against the adjacent battery cells, the first convex rib divides the space between the first surface and the adjacent battery cells into a plurality of inter-battery cell air channels, and the second surface is attached to the adjacent battery cells; or, the first surface and the second surface are both provided with first ribs, the first ribs on the first surface are propped against adjacent electric cores, the first ribs on the first surface divide the space between the first surface and the adjacent electric cores into a plurality of inter-electric-core air channels, the first ribs on the second surface are propped against the adjacent electric cores, and the first ribs on the second surface divide the space between the second surface and the adjacent electric cores into a plurality of inter-electric-core air channels.

Optionally, the electric core air duct board further includes a second rib disposed on the board body, at least one of the electric core air ducts is internally provided with the second rib, and the second rib abuts against the adjacent electric core and divides the electric core air duct into a plurality of sub-air ducts.

Optionally, the first rib is configured to drain the wind flowing into the inter-cell air duct from the air inlet duct toward the side of the cell, the cell air duct plate further includes a third rib disposed on the plate body, the third rib and the first rib are located on the same side of the plate body, the third rib abuts against an adjacent cell, the third rib is located at a side edge of the plate body and is close to the air inlet duct, the third rib extends along a height direction of the plate body, and the second rib is smaller than the plate body along a height direction thereof.

Optionally, the battery cell air duct board is still including setting up the fourth protruding muscle on the plate body, the fourth protruding muscle is supported with its adjacent battery cell, the fourth protruding muscle is close to the wind inlet duct sets up and follows the width direction of plate body extends, the one end of fourth protruding muscle with the third protruding muscle is connected, the other end of fourth protruding muscle and be closest to have the clearance between the first protruding muscle of fourth protruding muscle.

Optionally, the plurality of electric core air duct plates are arranged in a one-to-one correspondence with the plurality of electric cores, and each electric core air duct plate supports the side part of the corresponding electric core;

the battery pack also comprises a plurality of supporting blocks arranged in the box body, the supporting blocks and the battery cells are arranged in one-to-one correspondence, the surface, far away from the bottom wall of the box body, of each supporting block is formed into an inclined plane, the inclined plane of each supporting block is supported at the bottom of the corresponding battery cell, and each supporting block is connected with the corresponding battery cell air duct plate or formed integrally.

Optionally, an included angle between the electric core air duct board and the first direction is greater than 90 ° and less than or equal to 135 °.

According to a second aspect of the present disclosure, there is provided a vehicle including the battery pack as described above.

Through the technical scheme, the inter-cell air channel is defined between the cell air channel plate and the adjacent cells, and the cell air channel plate is inclined relative to the first direction, and is arranged at an obtuse angle with the first direction, so that when air flows into the inter-cell air channel between the cell air channel plate and the cells from the air inlet air channel (namely, flows into the second direction from the first direction), the air flows into the inter-cell air channel along the second direction which is obtuse with the first direction, the cooling of the cells is realized, and in the flowing process of the air flows, the resistance of the air flow entering the inter-cell air channel from the air inlet air channel can be reduced due to the obtuse angle setting of the inter-cell air channel and the air inlet air channel, the kinetic energy loss of the air flow is reduced, so that the air flow can more smoothly and rapidly enter the inter-cell air channel, more air flows into the inter-cell air channel, the heat of the inter-cell is taken away, and the heat dissipation efficiency is improved.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

fig. 1 is a partial perspective view of a battery pack provided in an exemplary embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a perspective view of a battery pack according to an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a box body; 11-an air inlet duct; 12-a first gap; 2-battery pack; 20-an electric core; 21-an electric core air duct plate; 210-a plate body; 211-first ribs; 212-second ribs; 213-third ribs; 214-fourth ribs; 200-an inter-cell air duct; 3-supporting blocks.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In the present disclosure, unless otherwise indicated, "first direction" is defined by the flow direction of the air flow in the air intake duct, "second direction" is defined by the flow direction of the air flow in the inter-cell duct, and specifically, referring to the illustrated direction of fig. 1, "inside and outside" refer to the inside and outside of the outline of the corresponding structure, and "far and near" refer to the far and near from the corresponding structure. The above directional terms are merely used to facilitate the description of the present disclosure, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the present disclosure. In addition, it should be noted that terms such as "first", "second", etc. are used to distinguish one element from another element without order or importance.

Referring to fig. 1 to 3, according to a first aspect of the present disclosure, there is provided a battery pack including a case 1 and a battery pack 2, an air inlet duct 11 being provided in the case 1, the air inlet duct 11 being for causing an air flow in a first direction in the air inlet duct 11, the battery pack 2 including a plurality of cells 20 arranged side by side; the battery pack 2 further comprises a battery cell air duct plate 21, at least one side of each battery cell 20 is provided with the battery cell air duct plate 21, an inter-battery cell air duct 200 is defined between the battery cell air duct plate 21 and the adjacent battery cell 20, and the inter-battery cell air duct 200 is communicated with the air inlet duct 11; the electric core air duct plate 21 is inclined relative to the first direction, and the electric core air duct plate 21 is arranged at an obtuse angle with the first direction, so that the air flow in the air inlet air duct 11 can enter the inter-electric core air duct 200 along the second direction at an obtuse angle with the first direction.

Through the above technical scheme, the inter-cell air duct 200 is defined between the cell air duct plate 21 and the adjacent cell 20, and the cell air duct plate 21 is inclined relative to the first direction, and the cell air duct plate 21 is arranged at an obtuse angle with the first direction, so that when air flows into the inter-cell air duct 200 between the cell air duct plate 21 and the cell 20 from the air inlet air duct 11 (i.e. from the first direction to the second direction), the air flows into the inter-cell air duct 200 along the second direction which is obtuse with the first direction, thereby realizing cooling of the cell 20, and in the flowing process of the air flows, the resistance of the air flowing into the inter-cell air duct 200 from the air inlet air duct 11 can be reduced, thereby reducing the kinetic energy loss of the air flow, enabling the air flow to enter the inter-cell air duct 200 more smoothly and rapidly, enabling more air flow to enter the inter-cell air duct 200 to carry heat away from the cell 20, and improving the heat dissipation efficiency.

In the present disclosure, the range of the included angle between each of the battery cells 20 and the first direction is not limited, for example, in one exemplary embodiment provided in the present disclosure, as shown in fig. 1 to 3, each of the battery cells 20 may be inclined with respect to the first direction, and each of the battery cells 20 may be disposed at an obtuse angle with respect to the first direction. That is, each of the electric cells 20 and each of the electric cell air duct plates 21 are arranged at an obtuse angle with respect to the first direction, so that the inter-electric-cell air duct 200 defined between each of the electric cell air duct plates 21 and the electric cell 20 adjacent thereto is also arranged at an obtuse angle with respect to the first direction, thereby ensuring that the angle of the air flow when entering the inter-electric-cell air duct 200 from the air inlet air duct 11 is an obtuse angle, and achieving the purpose of reducing the resistance in the air flow process.

Alternatively, in another embodiment provided in the present disclosure, each of the electric cells 20 may be disposed perpendicular to the first direction, that is, the included angle between each of the electric cells 20 and the first direction is a right angle, so that, because the electric cell air duct board 21 is disposed obliquely with respect to the first direction, the included angle between the air flow flowing out from the air inlet air duct 11 and the electric cell air duct board 21 is still an obtuse angle when entering the inter-electric-cell air duct 200, and thus, the effect of reducing the resistance of the air flow entering from the air inlet air duct 11 to the inter-electric-cell air duct 200 can be also achieved.

Alternatively, as shown in fig. 1 to 3, the battery cells 20 and the battery cell air duct plate 21 are parallel to each other. The electric core 20 is parallel with the electric core air duct plate 21, namely the inclination angles of the electric core 20 and the electric core air duct plate 21 are the same, so that when the electric core 20 and the electric core air duct plate 21 are arranged, the contact area between the electric core 20 and the electric core air duct plate 21 can be increased (the electric core air duct 200 is more convenient to be limited), the gap between the electric core 20 and the electric core air duct plate 21 is reduced, the utilization rate of the space in the box body 1 is improved, and the integration level of the electric core 20 is further improved.

In order to further improve the cooling and heat dissipation effects on the battery cells 20, optionally, as shown in fig. 1 to 3, a battery cell air duct board 21 may be disposed between every two adjacent battery cells 20, where the battery cell air duct board 21 includes a board body 210 and a first rib 211 disposed on the board body 210, the board body 210 has a first surface and a second surface opposite to each other along a thickness direction of the board body, where the first surface may be provided with the first rib 211, the first rib 211 abuts against the adjacent battery cells 20, and the first rib 211 separates a space between the first surface and the adjacent battery cells 20 into a plurality of inter-battery cell air ducts 200, and the second surface is attached to the adjacent battery cells 20. Because each cell 20 and each cell air duct board 21 are obliquely arranged relative to the first direction, and the cell air duct board 21 is arranged between every two adjacent cells 20, the first surface of the cell air duct board 21 can be pressed on the side wall of one cell 20 adjacent to the first surface, and the first ribs 211 are formed on the first surface, so that the space between the first surface and the cell 20 can be divided into a plurality of inter-cell air ducts 200, and the passage of air flow is more convenient; the second surface of the electric core air duct board 21 can support and fix the other electric core 20, so that one electric core air duct board 21 can simultaneously support and compress two electric cores 20 adjacent to the electric core air duct board, and the internal structure of the battery pack can be further simplified.

Alternatively, in another exemplary embodiment provided by the present disclosure, the first surface and the second surface may each be provided with a first rib 211, the first rib 211 on the first surface abuts against the adjacent cells 20, and the first rib 211 on the first surface divides a space between the first surface and the adjacent cells 20 into a plurality of inter-cell air channels 200, the first rib 211 on the second surface abuts against the adjacent cells 20, and the first rib 211 on the second surface divides a space between the second surface and the adjacent cells 20 into a plurality of inter-cell air channels 200. The first ribs 211 are arranged on the first surface and the second surface, and when the first surface of the battery cell air duct plate 21 abuts against the two adjacent battery cells 20, the first ribs 211 formed on the first surface can divide the space between the adjacent battery cells 20 into a plurality of inter-battery cell air ducts 200; similarly, when the second surface of the cell air duct board 21 abuts against two adjacent cells 20, the first ribs 211 formed on the second surface can divide the space between the adjacent cells 20 into a plurality of inter-cell air ducts 200, that is, by providing one cell air duct board 21, the inter-cell air ducts 200 can be formed between the two cells 20 at the same time, that is, the two cells 20 are supported (or abutted) at the same time, and the heat dissipation effect is achieved.

Moreover, the two side walls of each electric core 20 are respectively abutted against the first ribs 211 on the first surface and the second ribs 212 on the second surface of the electric core air duct plate 21 positioned at the two sides of the electric core, and a plurality of inter-electric-core air ducts 200 are separated, so that the inter-electric-core air ducts 200 formed at the two sides of the electric core 20 can enable the two sides of the electric core 20 to have airflow passing through, and therefore the heat dissipation effect and the heat dissipation efficiency of the electric core 20 can be further improved.

Optionally, as shown in fig. 3, the cell air duct board 21 may further include a second rib 212 disposed on the board body 210, where the second rib 212 is disposed in at least one inter-cell air duct 200, and the second rib 212 abuts against the adjacent cell 20 and separates the inter-cell air duct 200 into a plurality of sub-air ducts. Through setting up the protruding muscle 212 of second, and the protruding muscle 212 of second supports with its adjacent electric core 20 and can separate electric core wind channel 200 into a plurality of sub-wind channels, like this, after the air current enters into electric core wind channel 200 from air inlet wind channel 11, can flow into different sub-wind channels respectively under the restriction of protruding muscle 212 of second to enlarge the area of contact between air current and the electric core 20, so that take away the heat that electric core 20 produced better.

In addition, through setting up the protruding muscle 212 of second, the protruding muscle 212 of second and first protruding muscle 211 are supported jointly on electric core 20, can also increase the area of contact between electric core 20 and the electric core wind channel board 21, the stable support of electric core wind channel board 21 to electric core 20 of being convenient for more.

Specifically, in an exemplary embodiment provided in the present disclosure, as shown in fig. 3, the first bead 211 may extend in a vertical direction and then extend in a horizontal direction, that is, the first bead 211 may be formed in an L shape; alternatively, in another embodiment provided in the present disclosure, the first beads 211 may also be formed in a curved shape bent toward the side of the battery cell 20. Of course, in order to better separate the space between the battery cell air duct board 21 and the battery cell 20, a portion of the first rib 211 may be L-shaped and another portion may be formed in a curved shape, which is not limited by the present disclosure.

For the embodiment in which the first ribs 211 may be formed into an L shape, as shown in fig. 3, the second ribs 212 may be disposed between the horizontal extension sections of two adjacent first ribs 211, that is, the inter-cell air duct 200 enclosed between two first ribs 211 is divided into two sub-air ducts, and the shape of the second ribs 212 may be a straight line or an arc extending along the horizontal direction, so long as the separation effect on the inter-cell air duct 200 can be achieved, which is not limited in the disclosure.

Optionally, as shown in fig. 3, the first rib 211 is configured to be capable of guiding the wind flowing into the inter-cell duct 200 from the air inlet duct 11 toward the side of the cell 20, the cell duct board 21 further includes a third rib 213 disposed on the board 210, the third rib 213 is located on the same side of the board 210 as the first rib 211, the third rib 213 abuts against the cell 20 adjacent thereto, the third rib 213 is located at the side edge of the board 210 and is disposed near the air inlet duct 11, the third rib 213 extends along the height direction of the board 210, and the dimension of the second rib 212 along the height direction of the board 210 is smaller than the dimension of the board 210 along the height direction thereof. The third protruding rib 213 is disposed at the side edge of the plate 210 and abuts against the adjacent battery cell 20, on one hand, the contact area between the third protruding rib 213 and the battery cell 20 can be further increased, the supporting effect on the battery cell 20 is improved, on the other hand, the third protruding rib 213 disposed at the edge of the plate 210 can also play a shielding role on the air flow flowing into the inter-battery-cell air duct 200, the air flow can be prevented from escaping from the side edge of the body immediately after entering the inter-battery-cell air duct 200, the heat dissipation effect on the battery cell 20 is prevented from being influenced, and the size of the second protruding rib 212 along the height direction of the plate 210 is smaller than the size of the plate 210 along the height direction of the plate, so that the arrangement of the third protruding rib 213 can not interfere or shield the outflow of the air flow after heat exchange with the battery cell 20.

Optionally, as shown in fig. 3, the electric core air duct board 21 may further include a fourth rib 214 disposed on the board body 210, where the fourth rib 214 abuts against the electric core 20 adjacent thereto, the fourth rib 214 is disposed near the air intake duct 11 and extends along the width direction of the board body 210, one end of the fourth rib 214 is connected to the third rib 213, and a gap is formed between the other end of the fourth rib 214 and the first rib 211 closest to the fourth rib 214. Similarly, the fourth rib 214 can support the electric core 20 together with the first rib 211, the second rib 212 and the third rib 213, so as to increase the supporting area between the fourth rib 214 and the electric core 20 and improve the supporting effect, and a gap is formed between the fourth rib 214 and the first rib 211 closest to the fourth rib, and the gap can allow the air flow in the air inlet duct 11 to flow in.

The thicknesses of the first rib 211, the second rib 212, the third rib 213 and the fourth rib 214 should be uniform, so as to ensure that the first rib 211, the second rib 212, the third rib 213 and the fourth rib 214 can simultaneously abut against the outer wall of the cell 20 when the cell 20 is supported.

Alternatively, as shown in fig. 1 to 3, the number of the battery cell air duct boards 21 may be plural, and the plural battery cell air duct boards 21 are disposed in one-to-one correspondence with the plural battery cells 20, and each battery cell air duct board 21 supports a side portion of its corresponding battery cell 20. Like this each electric core 20 all has the electric core wind channel board 21 that corresponds rather than supporting to make each electric core 20 all be in a relative independent state, avoid receiving the extrusion of adjacent electric core 20, and all be formed with the electric core wind channel 200 between each electric core 20 and the electric core wind channel board 21 rather than adjacent electric core for the circulation of air current, thereby can realize the even heat dissipation to each electric core 20.

In addition, as shown in fig. 1 to 3, the battery pack may further include a plurality of support blocks 3 disposed in the case 1, the plurality of support blocks 3 being disposed in one-to-one correspondence with the plurality of electric cells 20, a surface of each support block 3, which is far away from the bottom wall of the case 1, being formed as an inclined surface, the inclined surface of each support block 3 being supported at the bottom of the corresponding electric cell 20, and each support block 3 being connected to or integrally formed with the corresponding electric cell air duct plate 21. The supporting block 3 is used for supporting the bottom of the battery cell 20, and the surface of the bottom wall of the box body 1, which is far away from the supporting block 3, is formed into an inclined plane, so that the inclined plane can be processed into an angle matched with the inclined plane according to the inclination angle of the battery cell 20, and the arrangement of the battery cell 20 is more convenient.

In the embodiment in which the number of the cell air duct plates 21 is plural, as shown in fig. 1 to 3, a first gap 12 may be formed between two cell air duct plates 21 located at the extreme edge and the inner wall of the case 1, and the first gap 12 may allow the air flow to flow therethrough, so as to achieve cooling and heat dissipation of the cells 20 supported on the cell air duct plates 21 at the extreme edge.

Alternatively, in one exemplary embodiment provided by the present disclosure, the included angle between the cell air duct board 21 and the first direction is greater than 90 ° and less than or equal to 135 °. In this way, in the angle range, the resistance of the air flow entering the inter-cell air duct 200 from the air inlet air duct 11 can be effectively reduced, and the normal arrangement of the cells 20 in the box body 1 can not be influenced.

According to a second aspect of the present disclosure, there is provided a vehicle including the battery pack as above. The vehicle has all the beneficial effects of the battery pack, and the disclosure is not repeated here.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (10)

1. The battery pack is characterized by comprising a box body and a battery pack, wherein an air inlet duct is arranged in the box body and used for enabling air flow to flow in a first direction in the air inlet duct, and the battery pack comprises a plurality of battery cells which are arranged side by side;

the battery pack further comprises battery cell air duct plates, at least one side of each battery cell is provided with the battery cell air duct plate, an inter-battery cell air duct is defined between the battery cell air duct plate and the adjacent battery cell, and the inter-battery cell air duct is communicated with the air inlet air duct;

the electric core air duct plate is inclined relative to the first direction, and the electric core air duct plate and the first direction are arranged at an obtuse angle, so that air flow in the air inlet air duct can enter the air duct between the electric cores along a second direction which is obtuse with the first direction.

2. The battery pack of claim 1, wherein each of the cells is inclined in the first direction and each of the cells is disposed at an obtuse angle to the first direction.

3. The battery pack of claim 2, wherein the cells and the cell stack plates are parallel to each other.

4. The battery pack according to claim 2, wherein the cell air duct board is provided between each adjacent two of the cells, the cell air duct board comprising a board body and a first bead provided on the board body, the board body having a first surface and a second surface opposite to each other in a thickness direction thereof;

the first surface is provided with the first convex rib, the first convex rib is propped against the adjacent battery cells, the first convex rib divides the space between the first surface and the adjacent battery cells into a plurality of inter-battery cell air channels, and the second surface is attached to the adjacent battery cells; or, the first surface and the second surface are both provided with first ribs, the first ribs on the first surface are propped against adjacent electric cores, the first ribs on the first surface divide the space between the first surface and the adjacent electric cores into a plurality of inter-electric-core air channels, the first ribs on the second surface are propped against the adjacent electric cores, and the first ribs on the second surface divide the space between the second surface and the adjacent electric cores into a plurality of inter-electric-core air channels.

5. The battery pack according to claim 4, wherein the cell stack plate further comprises a second rib provided on the plate body, the second rib is provided in at least one of the inter-cell stacks, and the second rib abuts against an adjacent cell and divides the inter-cell stack into a plurality of sub-stacks.

6. The battery pack of claim 5, wherein the first rib is configured to direct wind flowing from the air inlet duct into the inter-cell duct toward a side of the cell, the cell duct plate further comprises a third rib provided on the plate body, the third rib being located on the same side of the plate body as the first rib, the third rib being abutted against the cell adjacent thereto, the third rib being located at a side edge of the plate body and disposed near the air inlet duct, the third rib extending in a height direction of the plate body, and a dimension of the second rib in the height direction of the plate body being smaller than a dimension of the plate body in the height direction thereof.

7. The battery pack according to claim 6, wherein the cell stack plate further comprises a fourth rib disposed on the plate body, the fourth rib being abutted against the cell adjacent thereto, the fourth rib being disposed adjacent to the air intake stack and extending in the width direction of the plate body, one end of the fourth rib being connected to the third rib, and a gap being provided between the other end of the fourth rib and the first rib closest to the fourth rib.

8. The battery pack according to any one of claims 2 to 7, wherein the plurality of cell air duct plates are provided in one-to-one correspondence with the plurality of cells, each cell air duct plate supporting a side portion of its corresponding cell;

the battery pack also comprises a plurality of supporting blocks arranged in the box body, the supporting blocks and the battery cells are arranged in one-to-one correspondence, the surface, far away from the bottom wall of the box body, of each supporting block is formed into an inclined plane, the inclined plane of each supporting block is supported at the bottom of the corresponding battery cell, and each supporting block is connected with the corresponding battery cell air duct plate or formed integrally.

9. The battery pack of any one of claims 1-7, wherein an angle between the cell stack plate and the first direction is greater than 90 ° and less than or equal to 135 °.

10. A vehicle comprising the battery pack of any one of claims 1-9.