Battery box, power battery pack and vehicle thereof

Abstract

The utility model discloses a battery box, a power battery pack and a vehicle thereof. The battery box comprises a tray, a cross beam, a blocking piece and a one-way air guide piece, the tray has an accommodating cavity. The cross beam is arranged in the accommodating cavity so as to divide the accommodating cavity into a plurality of battery cell cavities, an exhaust channel is arranged in the cross beam, extends along the length direction of the cross beam and is communicated with the outside, and a second exhaust hole is formed in the cross beam and is communicated with the exhaust channel and the battery cell cavities. The blocking piece is arranged in the second exhaust hole and connected with the inner wall of the second exhaust hole. The one-way air guide piece is arranged on the side, close to the exhaust channel, of the second exhaust hole, and when the one-way air guide piece is opened, the battery cell cavity is communicated with the exhaust channel. According to the battery box disclosed by the utility model, the blocking piece and the one-way air guide piece are arranged in the second exhaust hole, so that when air flow in the battery cell cavity is guided to the exhaust channel, the air flow is prevented from flowing back into the battery cell cavity from the exhaust channel, the efficiency of exhausting the air flow in the battery cell cavity is improved, and the use safety of the battery box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box, a power battery pack and a vehicle thereof. Background Art

[0002] In the related art, an exhaust channel is usually formed on the middle beam of the tray between adjacent battery cell cavities, and an exhaust inlet is formed on the middle beam of the tray corresponding to each battery cell cavity, so that the gas in the battery cell cavity enters the exhaust channel through the exhaust inlet and then is discharged to the outside through the exhaust channel. However, the gas in the exhaust channel is easy to flow back into the battery cell cavity along the exhaust inlet, thereby reducing the efficiency of exhaust and pressure relief of the battery cell cavity. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery box, which is conducive to preventing the airflow from the exhaust channel from flowing back into the battery cell cavity when the airflow in the battery cell cavity is guided to the exhaust channel, so as to improve the efficiency of the airflow discharge in the battery cell cavity, thereby improving the safety of the battery box.

[0004] Another object of the present invention is to provide a power battery pack using the above-mentioned battery box.

[0005] Another object of the present invention is to provide a vehicle using the above-mentioned power battery pack.

[0006] The battery box according to the first embodiment of the utility model includes: a tray, the tray having a accommodating cavity; a crossbeam, the crossbeam is arranged in the accommodating cavity to divide the accommodating cavity into a plurality of battery cell cavities, the crossbeam has an exhaust channel, the exhaust channel extends along the length direction of the crossbeam, the exhaust channel is connected with the outside, the crossbeam is provided with a second exhaust hole, the second exhaust hole connects the exhaust channel and the battery cell cavity; a blocking member, the blocking member is arranged in the second exhaust hole, the blocking member is connected to the inner wall of the second exhaust hole; a one-way air guide, the one-way air guide is arranged on a side of the second exhaust hole adjacent to the exhaust channel, when the one-way air guide is opened, the battery cell cavity is connected with the exhaust channel.

[0007] According to the battery box of the embodiment of the utility model, by arranging a blocking member and a one-way air guide member in the second exhaust hole, when the airflow in the battery cell cavity is guided to the exhaust channel, it is beneficial to prevent the airflow from flowing back from the exhaust channel into the battery cell cavity, so as to improve the efficiency of the airflow discharge in the battery cell cavity, thereby improving the safety of the battery box.

[0008] According to some embodiments of the present invention, the one-way air guide comprises a plurality of sub-air guide portions, the plurality of sub-air guide portions are spaced apart along the circumference of the second exhaust hole, and at least a portion of each sub-air guide portion is opposite to the second exhaust hole.

[0009] According to some embodiments of the present utility model, each of the sub-air guiding portions includes a first connecting segment and a second connecting segment connected to each other, the first connecting segment is connected to the crossbeam, and the second connecting segment is opposite to the second exhaust hole.

[0010] According to some embodiments of the present invention, the minimum gap between two adjacent sub-air guiding portions is L, wherein L satisfies: L≤2 mm.

[0011] According to some embodiments of the present invention, the one-way air guide comprises a soft portion and a high-resistance layer, and the high-resistance layer is located on the outer peripheral surface of the soft portion.

[0012] According to some embodiments of the present invention, the soft part is a silicone part or a rubber part, and the high-resistance layer is a polyimide layer or a mica layer.

[0013] According to some embodiments of the present invention, at least one second exhaust hole is provided on both sides of the crossbeam along the length direction of the tray.

[0014] According to some embodiments of the utility model, the blocking member includes a plurality of blocking ribs, one ends of the plurality of blocking ribs are connected to each other, the plurality of blocking ribs are spaced apart along the circumference of the second exhaust hole, and the other end of each blocking rib is connected to the inner wall of the second exhaust hole.

[0015] According to some embodiments of the present invention, the thickness of the blocking member is D, wherein D satisfies: 0.5 mm ≤ D ≤ 2 mm.

[0016] A power battery pack according to an embodiment of the second aspect of the utility model includes: a battery box, wherein the battery box is a battery box according to an embodiment of the first aspect of the utility model, and the exhaust passage of the battery box is connected to the outside through a first exhaust hole; an explosion-proof valve, wherein the explosion-proof valve is arranged at the first exhaust hole of the battery box; a plurality of battery cell modules, wherein the plurality of battery cell modules correspond one-to-one to the plurality of battery cell cavities of the battery box, each of the battery cell modules is arranged in the corresponding battery cell cavity, each of the battery cell modules includes a plurality of battery cells, and the plurality of battery cells are stacked along the thickness direction of the battery cell.

[0017] A vehicle according to an embodiment of the third aspect of the utility model includes a power battery pack according to an embodiment of the second aspect of the utility model.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of a battery box according to an embodiment of the utility model;

[0021] Figure 2 yes Figure 1 The enlarged view of the A part shown in the middle circle;

[0022] Figure 3 is a schematic diagram of a battery box according to another angle of the embodiment of the utility model;

[0023] Figure 4 yes Figure 3 The enlarged view of the part B shown in the middle circle;

[0024] Figure 5 is a schematic diagram of a battery box according to an embodiment of the utility model, wherein the one-way air guide is opened;

[0025] Figure 6 yes Figure 5 The enlarged view of the C part circled in the middle;

[0026] Figure 7 It is a schematic diagram of a one-way air guide of a battery box according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 100: battery box;

[0029] 1: tray; 11: receiving chamber; 111: battery cell chamber; 2: crossbeam; 21: exhaust channel; 22: first exhaust hole; 23: second exhaust hole; 3: blocking member; 4: one-way air guide; 41: sub-air guide; 411: first connecting section; 412: second connecting section; 42: soft part; 43: high-rise resistance;

[0030] 200: Explosion-proof valve. DETAILED DESCRIPTION

[0031] Reference below Figure 1-Figure 7 A battery box 100 according to an embodiment of the first aspect of the present invention is described.

[0032] like Figure 1-Figure 7 As shown, the battery box 100 according to the first embodiment of the utility model includes a tray 1, a crossbeam 2, a blocking member 3 and a one-way air guide 4.

[0033] Specifically, the tray 1 has a accommodating cavity 11. The crossbeam 2 is arranged in the accommodating cavity 11 to divide the accommodating cavity 11 into a plurality of battery cell cavities 111. In the description of the present utility model, "plurality" means two or more. The crossbeam 2 has an exhaust channel 21, which extends along the length direction of the crossbeam 2. The exhaust channel 21 is connected to the outside. The crossbeam 2 is provided with a second exhaust hole 23, and the second exhaust hole 23 connects the exhaust channel 21 and the battery cell cavity 111. The blocking member 3 is arranged in the second exhaust hole 23, and the blocking member 3 is connected to the inner wall of the second exhaust hole 23. The one-way air guide 4 is arranged on a side of the second exhaust hole 23 adjacent to the exhaust channel 21. When the one-way air guide 4 is opened, the battery cell cavity 111 is connected to the exhaust channel 21.

[0034] For example, in Figure 1-Figure 6 In the example, a beam 2 is provided in the accommodating cavity 11, and the length direction of the beam 2 (for example, Figure 1 The two ends of the tray 1 (in the left and right directions) are connected to the inner walls of the tray 1 on both sides, thereby dividing the accommodating chamber 11 into two battery cell chambers 111, and the battery cells are suitable for installing in the battery cell chambers 111. In this way, the two battery cell chambers 111 are separated, which can prevent the battery cells in a certain battery cell chamber 111 from thermal runaway and cause arcing and fire of all the battery cells as a whole, greatly improving the safety of the battery box 100.

[0035] The exhaust channel 21 in the crossbeam 2 extends along the length direction of the crossbeam 2 to achieve communication between the exhaust channel 21 and the outside world. The crossbeam 2 is formed with a second exhaust hole 23 in the direction toward the battery cell cavity 111. The second exhaust hole 23 connects the exhaust channel 21 and the corresponding battery cell cavity 111, thereby achieving communication between the battery cell cavity 111 and the outside world. As a result, the airflow generated by thermal runaway of the battery cell in the battery cell cavity 111 is discharged to the outside world through the second exhaust hole 23, the exhaust channel 21 and the first exhaust hole 22, thereby improving the safety of the battery box 100.

[0036] Among them, a one-way air guide 4 is provided on the side of the second exhaust hole 23 away from the battery cell cavity 111, which improves the flatness of the surface of the beam 2 facing the battery cell cavity 111, thereby avoiding the one-way air guide 4 from interfering with the installation of the battery cell in the battery cell cavity 111 and improving the service life of the one-way air guide 4.

[0037] The blocking member 3 is arranged on the side of the one-way air guide member 4 facing the cell cavity 111, so that the blocking member 3 can intercept the one-way air guide member 4, further ensuring that the one-way air guide member 4 cannot make the air flow flow from the exhaust channel 21 to the cell cavity 111, that is, ensuring the one-way air guide member 4's one-way air flow guiding effect on the air flow. The air flow can only flow from the cell cavity 111 to the exhaust channel 21 through the second exhaust hole 23, and cannot flow back from the exhaust channel 21 to the cell cavity 111, which is conducive to improving the operating stability of the battery cell in the cell cavity 111.

[0038] In actual use, when the one-way air guide 4 is closed, the battery cell cavity 111 and the exhaust channel 21 are not connected, thereby ensuring the normal operation of the battery cell; when the one-way air guide 4 is opened, the air flows from the battery cell cavity 111 to the exhaust channel 21 through the second exhaust hole 23. Therefore, compared with the traditional battery box 100, the one-way air guide 4 can prevent the airflow from the exhaust channel 21 from flowing back into the battery cell cavity 111, thereby preventing the airflow discharged from the battery cell cavity 111 from flowing back, thereby improving the efficiency of the airflow discharge in the battery cell cavity 111, and further improving the safety of the battery box 100.

[0039] According to the battery box 100 of the embodiment of the utility model, by arranging the blocking member 3 and the one-way air guide member 4 in the second exhaust hole 23, when the airflow in the battery cell cavity 111 is guided to the exhaust channel 21, it is beneficial to avoid the backflow of the airflow discharged from the battery cell cavity 111, so as to improve the efficiency of the airflow discharge in the battery cell cavity 111, thereby improving the safety of the battery box 100.

[0040] According to some embodiments of the present invention, referring to Figure 2 and Figure 6 The one-way air guide 4 includes a plurality of sub-air guides 41, which are spaced apart along the circumference of the second exhaust hole 23, and at least a portion of each sub-air guide 41 is opposite to the second exhaust hole 23. The one-way air guide 4 includes four sub-air guides 41, which are arranged in sequence along the circumference of the second exhaust hole 23. At least a portion of each sub-air guide 41 extends toward the center of the second exhaust hole 23, so that the one-way air guide 4 can block the second exhaust hole 23. Thus, when the one-way air guide 4 is closed, the one-way air guide 4 can block the second exhaust hole 23 to prevent the airflow from flowing between the exhaust channel 21 and the battery cell cavity 111, thereby improving the operating stability and use safety of the battery cell in the battery cell cavity 111.

[0041] Further, refer to Figure 2 and Figure 6Each sub-air guide 41 includes a first connecting section 411 and a second connecting section 412 connected to each other, the first connecting section 411 is connected to the crossbeam 2, and the second connecting section 412 is opposite to the second exhaust hole 23. The first connecting section 411 is used to connect with the surface of the crossbeam 2 around the second exhaust hole 23, thereby improving the installation stability of the sub-air guide 41 on the side of the second exhaust hole 23 adjacent to the exhaust channel 21. The second connecting section 412 is suitable for extending toward the center of the second exhaust hole 23. When the one-way air guide 4 is opened, the second connecting section 412 is opened toward a side away from the center of the battery cell cavity 111, that is, the end of the second connecting section 412 away from the first connecting section 411 extends toward a direction away from the center of the battery cell cavity 111, so that the second connecting section 412 guides the airflow in the battery cell cavity 111, so that the airflow in the battery cell cavity 111 can be guided into the exhaust channel 21 along the extension direction of the second connecting section 412.

[0042] According to some embodiments of the present invention, referring to Figure 2 , the minimum gap between two adjacent sub-air guides 41 is L, where L satisfies: L≤2mm. When L>2mm, the minimum gap between two adjacent sub-air guides 41 is larger, and the airflow in the exhaust channel 21 is easy to flow back to the battery cell cavity 111 through the gap between the two adjacent sub-air guides 41, so it is difficult to give full play to the role of the one-way air guide 4, and the exhaust and pressure relief efficiency of the battery box 100 to the battery cell cavity 111 is low. Therefore, by setting the minimum gap between two adjacent sub-air guides 41 to L≤2mm, the design of the minimum gap between two adjacent sub-air guides 41 is more reasonable, so that all sub-air guides 41 can be opened smoothly, and at the same time, the airflow in the exhaust channel 21 is prevented from flowing back to the battery cell cavity 111 through the gap between the two adjacent sub-air guides 41, so as to give full play to the role of the one-way air guide 4 and improve the exhaust and pressure relief efficiency of the battery box 100 to the battery cell cavity 111.

[0043] In addition, refer to Figure 7 The one-way air guide 4 includes a soft portion 42 and a high-resistance layer 43, and the high-resistance layer 43 is located on the outer peripheral surface of the soft portion 42. The temperature of the airflow generated by the thermal runaway of the battery cell is relatively high, so the high-resistance layer 43 is used to protect the soft portion 42, so as to prevent the airflow in the battery cell cavity 111 from directly contacting the soft portion 42 and damaging the soft portion 42, thereby facilitating the extension of the service life of the one-way air guide 4.

[0044] Furthermore, the soft part 42 is a silicone part or a rubber part, and the high-resistance layer 43 is a polyimide layer or a mica layer. Among them, the silicone part has the advantages of high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength; the rubber part has excellent cold resistance, wear resistance, elasticity and aging resistance. Therefore, by using the silicone part or the rubber part as the soft part 42, it is beneficial to improve the use stability of the soft part 42, extend the service life of the soft part 42, thereby improving the service life of the one-way air guide 4, and at the same time it is beneficial to reduce the production cost of the one-way air guide 4.

[0045] Optionally, at least one second exhaust hole 23 is provided along the length direction of the tray 1 and on both sides of the crossbeam 2. The crossbeam 2 is formed with two second exhaust holes 23 in the direction of each battery cell cavity 111, and the second exhaust holes 23 connect the exhaust channel 21 and the corresponding battery cell cavity 111, thereby realizing the connection between the battery cell cavity 111 and the outside, thereby improving the safety of each battery cell cavity 111.

[0046] The polyimide layer has excellent mechanical properties, insulation properties, flame retardancy and chemical corrosion resistance; the mica layer has good insulation and thermal conductivity, good chemical stability, and good resistance to strong acids, strong alkalis and pressure. Therefore, using a polyimide layer or a mica layer as the high-resistance layer 43 is conducive to improving the stability of the high-resistance layer 43, reducing the damage of the high-resistance layer 43 by high-temperature airflow, thereby extending the service life of the one-way air guide 4.

[0047] According to some embodiments of the present invention, the blocking member 3 includes a plurality of blocking ribs, one end of each of which is connected to each other, the plurality of blocking ribs are spaced apart along the circumference of the second exhaust hole 23, and the other end of each blocking rib is connected to the inner wall of the second exhaust hole 23. Figure 3 and Figure 4 As shown, the blocking member 3 includes eight blocking ribs, one ends of the eight blocking ribs are connected at intervals in the circumferential direction of the second exhaust hole 23, and the other ends of the eight blocking ribs are extended toward the center of the second exhaust hole 23 and then connected together, which is beneficial to ensure that the blocking ribs 3 block the one-way air guide 4, and avoid that part of the one-way air guide 4 extends toward the battery cell cavity 111, thereby further preventing the airflow in the exhaust channel 21 from flowing back into the battery cell cavity 111, and further giving full play to the role of the one-way air guide 4.

[0048] The thickness of the blocking member 3 is D, wherein D satisfies: 0.5 mm ≤ D ≤ 2 mm. When D < 0.5 mm, the thickness of the blocking member 3 is small, and the structural strength of the blocking member 3 is small, so that the blocking member 3 is easy to break, thereby reducing the service life of the blocking member 3; when D > 2 mm, the thickness of the blocking member 3 is large, and the weight of the battery box 100 is increased while the one-way air guide 4 is blocked. When the thickness of the blocking member 3 is greater than the axial length of the second exhaust hole 23, the blocking member 3 extends into the exhaust channel 21, which is not conducive to the installation and use of the one-way air guide 4. When the blocking member 3 extends into the battery cell cavity 111, the blocking member 3 is easy to interfere with the battery cell. Therefore, by setting the thickness of the blocking member 3 to 0.5 mm ≤ D ≤ 2 mm, the thickness design of the blocking member 3 is more reasonable, and even if the structural strength of the blocking member 3 is suitable for blocking the use of the one-way air guide 4, the blocking member 3 is prevented from interfering with the one-way air guide 4 and / or the battery cell.

[0049] The power battery pack according to the embodiment of the second aspect of the utility model includes a battery box 100, an explosion-proof valve 200 and a plurality of battery cell modules. The battery box 100 is a battery box 100 according to the embodiment of the first aspect of the utility model. The exhaust channel 21 of the battery box 100 is connected to the outside through the first exhaust hole 22. The explosion-proof valve 200 is arranged at the first exhaust hole 22 of the battery box 100. When the air pressure in a certain battery cell cavity 111 is too high, the explosion-proof valve 200 automatically opens to exhaust and release pressure. The plurality of battery cell modules correspond one by one to the plurality of battery cell cavities 111 of the battery box 100. Each battery cell module is arranged in the corresponding battery cell cavity 111. Each battery cell module includes a plurality of battery cells, and the plurality of battery cells are stacked along the thickness direction of the battery cell.

[0050] Among them, refer to Figure 1 , Figure 3 and Figure 5 Two first exhaust holes 22 are formed on the crossbeam 2, and an explosion-proof valve 200 is provided on each first exhaust hole 22. However, the present invention is not limited thereto. If the exhaust rate of a single explosion-proof valve 200 can meet the requirements of the power battery pack, only one first exhaust hole 22 is formed on the battery box 100, that is, only one explosion-proof valve 200 is installed, so as to simplify the structure of the tray of the battery box 100 and reduce the cost of the power battery pack.

[0051] The power battery pack according to the embodiment of the utility model, by adopting the above-mentioned battery box 100, is conducive to improving the use stability and use safety of the power battery pack, thereby helping to improve the market competitiveness of the power battery pack.

[0052] A vehicle according to an embodiment of the third aspect of the utility model includes a power battery pack according to an embodiment of the second aspect of the utility model.

[0053] The vehicle according to the embodiment of the utility model, by adopting the above-mentioned power battery pack, is conducive to improving the stability of the vehicle's power transmission, improving the user's usage experience, and thus improving the market competitiveness of the vehicle.

[0054] Other structures and operations of the power battery pack and the vehicle according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0055] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "back", "left", "right", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery box, characterized in that: include: A tray, wherein the tray has a receiving cavity; A crossbeam, wherein the crossbeam is arranged in the accommodating cavity to divide the accommodating cavity into a plurality of battery cell cavities, wherein the crossbeam has an exhaust channel, wherein the exhaust channel extends along the length direction of the crossbeam, wherein the exhaust channel is connected to the outside, and wherein a second exhaust hole is arranged on the crossbeam, wherein the second exhaust hole is connected to the exhaust channel and the battery cell cavity; a blocking member, the blocking member being disposed in the second exhaust hole and connected to an inner wall of the second exhaust hole; A one-way air guide is provided on a side of the second exhaust hole adjacent to the exhaust channel. When the one-way air guide is opened, the battery cell cavity is connected to the exhaust channel.

2. The battery box according to claim 1, characterized in that: The one-way air guide comprises: A plurality of sub-air guides are provided, wherein the sub-air guides are spaced apart from each other along a circumferential direction of the second exhaust hole, and at least a portion of each of the sub-air guides is opposite to the second exhaust hole.

3. The battery box according to claim 2, characterized in that: Each of the sub-air guiding portions includes a first connecting section and a second connecting section connected to each other, the first connecting section is connected to the crossbeam, and the second connecting section is opposite to the second exhaust hole.

4. The battery box according to claim 2, characterized in that: The minimum gap between two adjacent sub-air guide portions is L, wherein L satisfies: L≤2 mm.

5. The battery box according to claim 1, characterized in that: The one-way air guide comprises a soft portion and a high-resistance layer, wherein the high-resistance layer is located on the outer peripheral surface of the soft portion.

6. The battery box according to claim 5, characterized in that: The soft part is a silicone part or a rubber part, and the high-resistance layer is a polyimide layer or a mica layer.

7. The battery box according to claim 1, characterized in that: At least one second exhaust hole is provided on both sides of the crossbeam along the length direction of the tray.

8. The battery box according to any one of claims 1 to 7, characterized in that: The blocking member includes a plurality of blocking ribs, one ends of the plurality of blocking ribs are connected to each other, the plurality of blocking ribs are spaced apart along the circumference of the second exhaust hole, and the other end of each of the blocking ribs is connected to the inner wall of the second exhaust hole.

9. The battery box according to claim 1, characterized in that: The thickness of the blocking member is D, wherein D satisfies: 0.5 mm ≤ D ≤ 2 mm.

10. A power battery pack, characterized in that: include: A battery box, wherein the battery box is a battery box according to any one of claims 1 to 9, and an exhaust passage of the battery box is connected to the outside through a first exhaust hole; An explosion-proof valve, the explosion-proof valve being arranged at the first exhaust hole of the battery box; A plurality of battery cell modules, the plurality of battery cell modules correspond one-to-one to the plurality of battery cell cavities of the battery box, each of the battery cell modules is arranged in the corresponding battery cell cavity, each of the battery cell modules includes a plurality of battery cells, and the plurality of battery cells are stacked along the thickness direction of the battery cell.

11. A vehicle, characterized in that: Comprising the power battery pack according to claim 10.

Images