Lifting lug structure of battery pack, battery pack shell, battery pack and vehicle

Abstract

The utility model relates to a lifting lug structure of a battery pack, a battery pack shell, a battery pack and a vehicle, the lifting lug structure comprises lifting lug main bodies made of PA6 + GF45 materials, the lifting lug main bodies are located on the left side and the right side of the battery pack shell, functional holes are formed in the lifting lug main bodies, the upper end face and / or the lower end face of each lifting lug main body are / is connected with at least one glass fabric layer, and the glass fabric layers are arranged on the lifting lug main bodies. The lifting lug main body is provided with a functional hole, the functional hole penetrates through the lifting lug main body and the glass fabric layer in the vertical direction, the battery pack shell comprises a shell body, the shell body comprises the lifting lug structure, the battery pack comprises the shell body and a cover body, the battery pack is installed on a vehicle, the battery pack has good structural stability and collision resistance, and the cruising ability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a lifting ear structure of a battery pack, a battery pack shell, a battery pack and a vehicle. Background Art

[0002] The battery pack shell is usually made of metal materials, such as aluminum alloy, rolled steel, etc., which are large in size and overall weight, and manual handling is time-consuming and labor-intensive. To facilitate handling, a lifting ear structure is usually directly welded on the metal shell of the battery pack, or installed in other ways (such as screwing) to facilitate subsequent lifting of the battery pack by lifting tools such as slings. For new energy vehicles, the lifting ear structure also plays a role in installing the battery pack on the vehicle. If the stability of the lifting ear structure is poor, the battery pack may easily fall off during transportation and cause accidents, and affect the installation quality of the battery pack on the vehicle. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a battery pack lifting ear structure, a battery pack shell, a battery pack and a vehicle, which can improve the structural stability of the lifting ear structure and ensure the stability and firmness of the battery pack installed on the vehicle.

[0004] The utility model provides a lifting ear structure for a battery pack, comprising a lifting ear body made of PA6+GF45 material, wherein the lifting ear body is located on the left and right sides of the battery pack shell, and a functional hole is opened on the lifting ear body. The upper end face and / or the lower end face of the lifting ear body is connected to at least one layer of glass fiber cloth layer, and the functional hole penetrates the lifting ear body and the glass fiber cloth layer in the up and down direction.

[0005] The lifting ear body is made of composite materials with a low overall density, which can improve the lightweight effect and has good structural stability. By setting at least one layer of glass fiber cloth, the glass fiber cloth layer can increase the tensile strength and collision resistance of the lifting ear structure. When the lifting ear body is subjected to collision impact, the glass fiber cloth layer can make the lifting ear body less likely to deform and less likely to fall off from the battery pack shell, ensuring the safety of the battery pack during transportation and ensuring the connection quality between the lifting ear structure and the vehicle.

[0006] In one embodiment, the ear body and the shell are integrally formed.

[0007] In one embodiment, the fiberglass cloth layer includes a transverse fiberglass cloth layer or a longitudinal fiberglass cloth layer, the transverse fiberglass cloth layer includes a texture extending in a front-to-back direction, and the longitudinal fiberglass cloth layer includes a texture extending in an up-down direction.

[0008] In one embodiment, the upper and lower end surfaces of the lifting ear body are connected to three layers of the glass fiber cloth layers, the three layers of the glass fiber cloth layers including two layers of the transverse glass fiber cloth layers and one layer of the longitudinal glass fiber cloth layer, the longitudinal glass fiber cloth layer is located between the two layers of the transverse glass fiber cloth layers in the vertical direction, and the upper and lower end surfaces of the lifting ear body are both connected to the transverse glass fiber cloth layers.

[0009] The utility model provides a battery pack shell, including a shell made of PA6+GF45 material, the left and right ends of the shell are provided with the above-mentioned battery pack ear structure, the shell includes an accommodating cavity, and the accommodating cavity is used to accommodate a battery cell.

[0010] By adopting a composite material shell, the shell has good thermal insulation, sealing and corrosion resistance, which can improve the overall strength, stiffness and modality of the shell, reduce the overall weight, and help improve the lightweight effect. By setting the ear structure at the left and right ends of the shell, the transportation quality of the battery pack shell and the installation quality on the vehicle are effectively guaranteed, and the installation is stable and firm.

[0011] In one embodiment, the housing and the ear structure of the battery pack are integrally formed.

[0012] In one embodiment, the shell includes a first reinforcement portion, the first reinforcement portion includes a first supporting edge and a connecting rib, the first supporting edge is protruded on the front end face and / or rear end face of the shell, the first supporting edge extends in the left-right direction, and protrudes and extends in the front-to-back direction toward a side away from the accommodating cavity, the connecting rib is protruded on the front end face and / or rear end face of the shell, and the upper end of the connecting rib is connected to the first supporting edge.

[0013] In one embodiment, the first reinforcement portion further includes a second supporting edge, which is protruded on the left end surface and / or the right end surface of the shell, and the second supporting edge extends in the front-to-back direction and protrudes in the left-to-right direction toward a side away from the accommodating cavity, and the front and rear ends of the second supporting edge are connected to the first supporting edge.

[0014] In one embodiment, the shell includes a second reinforcement portion, the second reinforcement portion includes at least one first connecting beam and / or at least one second connecting beam, and the first connecting beam and / or the second connecting beam are protruded from the bottom of the shell.

[0015] In one embodiment, the second reinforcement portion includes the first connecting beam and the second connecting beam, the first connecting beam extends in the left-right direction, the second connecting beam extends in the front-back direction, and at least one first connecting beam and at least one second connecting beam are staggered.

[0016] The present invention provides a battery pack comprising the aforementioned battery pack housing and a cover connected to the upper end of the housing. The battery pack has a low overall weight and good rigidity, strength, and modality, thereby ensuring the overall quality of the battery pack and improving safety.

[0017] The present invention provides a vehicle comprising a vehicle body, on which the aforementioned battery pack is mounted. The use of the aforementioned battery pack facilitates vehicle lightweighting, ensures stable and secure installation of the battery pack, reduces the likelihood of the battery pack being deformed or dislodged by impact in a vehicle collision, and enhances the passive safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic structural diagram of a housing according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a lifting ear structure according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the housing of an embodiment of the present invention from another angle;

[0022] Figure 4 This is a schematic diagram of the overall structure of a battery pack according to an embodiment of the present invention;

[0023] Figure 5 Schematic diagram of an explosion of a battery pack according to an embodiment of the present invention.

[0024] In the picture:

[0025] 10-lifting ear body; 101-functional hole; 11-fiberglass cloth layer; 111-transverse fiberglass cloth layer; 112-longitudinal fiberglass cloth layer; 20-shell; 201-accommodation cavity; 21-first supporting edge; 22-connecting reinforcement; 23-second supporting edge; 24-first support beam; 25-second support beam; 30-cover; 31-recessed portion; 32-protruding portion; 33-connecting edge. DETAILED DESCRIPTION

[0026] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0027] Unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0028] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0029] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature and do not indicate or imply relative importance or a particular order.

[0030] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0031] As attached Figure 1 As shown in the coordinate system in the figure, for ease of understanding, the direction along the X-axis is defined as the front-to-back direction, the direction along the Y-axis is defined as the left-to-right direction, and the direction along the Z-axis is defined as the up-down direction. This coordinate system is intended to illustrate the general positional relationships, connection relationships, or motion relationships of various components. It does not mean that the components of the present invention must be arranged or connected strictly according to this coordinate system. Those skilled in the art may flexibly adjust it according to actual needs.

[0032] Due to the large size and weight of the battery pack, manual handling is time-consuming and labor-intensive. To facilitate handling, a lifting ear structure is usually welded directly on the metal shell of the battery pack, or the lifting ear structure is installed in other ways (such as screwing) to facilitate subsequent lifting of the battery pack by lifting tools such as slings. When the battery pack is installed on a new energy vehicle, the lifting ear structure can connect to the vehicle to facilitate fixed installation of the battery pack. Therefore, the structural stability of the lifting ear structure is crucial to the transportation and installation of the battery pack.

[0033] As attached Figure 1 As shown, the present invention proposes a battery pack hanging ear structure, including a hanging ear body 10 made of PA6 (Polyamide 6) + GF45 (Glass Fiber, 45% glass fiber). The hanging ear body 10 is located on the left and right sides of the battery pack shell 20. Functional holes 101 are opened on the hanging ear body 10. At least one layer of glass fiber cloth layer 11 is connected to the upper end surface and / or lower end surface of the hanging ear body 10. The functional hole 101 passes through the hanging ear body 10 and the glass fiber cloth layer 11 in the vertical direction. The glass fiber cloth layer 11 can increase the tensile strength of the hanging ear body 10, thereby improving the mechanical strength and structural stability of the hanging ear body 10.

[0034] Since the battery pack may produce different degrees of collision during transportation, and in a vehicle collision accident, the battery pack will have different degrees of collision impact, so the collision resistance of the ear structure is also extremely important. If the collision resistance of the ear structure is poor, it is easy to produce collision deformation and cause unstable connection with the vehicle. In severe cases, the ear structure will separate from the battery pack shell, causing the battery pack to fall off, affecting its use. By providing a fiberglass cloth layer 11 on the ear body 10, the collision resistance can be improved, ensuring that the ear body 10 is not easily deformed during a collision.

[0035] In one example, the battery pack shell 20 is made of PA6+GF45 material, and the ear body 10 and the shell 20 are integrally formed, which reduces the connection process and improves stability.

[0036] In one example, as shown in the attached Figure 2 As shown, the fiberglass cloth layer 11 includes a transverse fiberglass cloth layer 111 or a longitudinal fiberglass cloth layer 112. The transverse fiberglass cloth layer 111 includes a texture extending in the front-to-back direction. The transverse fiberglass cloth layer 111 can improve the head-on collision performance of the lifting ear body 10. The longitudinal fiberglass cloth layer 112 includes a texture extending in the up-down direction. The longitudinal fiberglass cloth layer 112 can improve the side collision performance of the lifting ear body 10. The transverse fiberglass cloth layer 111 cooperates with the longitudinal fiberglass cloth layer 112 to also improve the offset collision performance of the lifting ear body 10.

[0037] In an optional solution, at least one transverse fiberglass cloth layer 111 and at least one longitudinal fiberglass cloth layer 112 are provided on the upper end surface and / or the lower end surface of the lifting lug body 10 .

[0038] In an optional embodiment, three layers of glass fiber cloth 11 are connected to the upper and lower end surfaces of the lifting ear body 10. The three layers of glass fiber cloth 11 include two transverse glass fiber cloth layers 111 and one longitudinal glass fiber cloth layer 112. The longitudinal glass fiber cloth layer 112 is located between the two transverse glass fiber cloth layers 111 in the vertical direction. The upper and lower end surfaces of the lifting ear body 10 are both connected to the transverse glass fiber layer 111, that is, the upper and lower ends of the lifting ear body 10 are provided with three layers of glass fiber cloth 11 distributed in a "horizontal, vertical and horizontal" manner.

[0039] With this arrangement, when the lifting lug structure is subjected to a head-on or rear-end collision (a collision in the front-to-back direction), the transverse fiberglass cloth layer 111 can provide excellent collision resistance, thereby protecting the lifting lug body 10 and preventing significant deformation in the front-to-back direction. When the lifting lug structure is subjected to a side collision (a collision in the left-to-right direction), the longitudinal fiberglass cloth layer 112 can provide excellent collision resistance, thereby protecting the lifting lug body 10 and preventing significant deformation in the left-to-right direction. The transverse fiberglass cloth layer 111 and the longitudinal fiberglass cloth layer 112 cooperate to enhance the lifting lug body 10's offset collision resistance, thereby improving the overall mechanical properties of the lifting lug body 10. Because the impact of a head-on collision on the lifting lug body 10 is greater than that of a side collision, the transverse fiberglass cloth layer 111 is provided as two layers.

[0040] It is understandable that those skilled in the art may set the number and position of the transverse fiberglass cloth layers 111 and the longitudinal fiberglass cloth layers 112 according to actual needs.

[0041] In one example, at least one fiberglass cloth layer 11 is first laid on the ear body 10 of the production mold (convex mold and concave mold), and the fiberglass cloth layer 11 is impregnated and coated with liquid resin. After the impregnation is completed, the fiberglass cloth layer 11 is molded into one piece with the ear body 10 and the shell 20. The impregnated fiberglass cloth is connected to the ear body 10 as a whole, and the production and processing of the ear structure and the shell 20 are completed.

[0042] The battery pack casing protects the battery cells, especially when subjected to external impact. It requires a certain level of structural integrity and stability to ensure the safety of the battery system. Battery pack casings are typically made of metal, which is relatively heavy. Furthermore, the casing is assembled by welding metal plates, which can easily lead to poor sealing during the welding process, affecting the overall airtightness and waterproof performance. When a battery pack with a metal casing is used in a vehicle, it is prone to water seepage, which is detrimental to maintaining a constant temperature in the battery pack and, in turn, affects the battery pack's battery life.

[0043] As attached Figure 1 As shown, the present invention also proposes a battery pack shell, including a shell 20 made of PA6 (Polyamide6, polyamide 6) + GF45 (Glass Fiber, 45% glass fiber), and the left and right ends of the shell 20 are provided with the above-mentioned ear structure, and the shell 20 includes a accommodating cavity 201, which is used to accommodate battery cells.

[0044] Since the PA6+GF45 shell 20 has a lower thermal conductivity coefficient than metal, it has good thermal insulation performance, which can ensure that the temperature of the battery cell in the shell 20 is not too low, and can reduce the time for heating the battery pack, reduce the energy consumption of heating, and in the thermal management system of the battery pack, the good thermal insulation performance of the shell 20 can reduce the energy loss of cooling the battery pack; the shell 20 has good insulation performance, which can greatly reduce the risk of short circuit and leakage, and has no rust problem, avoiding the problem of failure of the existing metal shell due to rust, improving the safety of the battery pack, and has good corrosion resistance. The shell 20 does not need to be connected by welding, but is formed in one piece by a mold, which reduces the component connection process, facilitates processing, and solves the problem of poor sealing caused by welding components, and has good sealing performance.

[0045] In one example, the housing 20 and the above-mentioned ear structure are integrally formed, which reduces the connection process and improves stability.

[0046] In one example, the housing 20 includes a first reinforcement portion, which can increase the structural strength of the housing 20 in the front-to-back direction. Figure 1 and attached Figure 3 The first reinforcement portion includes a first supporting edge 21 and a connecting rib 22. The first supporting edge 21 is protruded from the front end surface and / or the rear end surface of the shell 20. The first supporting edge 21 extends in the left-right direction and protrudes and extends in the front-to-back direction toward the side away from the accommodating cavity 201. The connecting rib 22 is protruded from the front end surface and / or the rear end surface of the shell 20, and the upper end of the connecting rib 22 is connected to the first supporting edge 21. The first supporting edge 21 and the connecting rib 22 cooperate to increase the collision resistance of the front end surface and / or the rear end surface of the shell 20.

[0047] Exemplarily, the upper end surface of the first supporting edge 21 and the upper end surface of the housing 20 are located in the same plane.

[0048] Exemplarily, the width of the first supporting edge 21 in the left-right direction is the same as the width of the housing 20 in the left-right direction.

[0049] Exemplarily, the connecting rib 22 is a triangular member, and more specifically, the connecting rib 22 is a right-angled triangular plate member.

[0050] For example, the height dimension of the connecting rib 22 in the up-down direction is the same as the height dimension of the shell 20 in the up-down direction.

[0051] Exemplarily, a plurality of connecting ribs 22 are evenly distributed on the front end surface and / or the rear end surface of the shell 20 at intervals therebetween.

[0052] Exemplarily, the first supporting edge 21 , the connecting rib 22 and the shell 20 are integrally formed.

[0053] In an optional solution, connecting ribs 22 are provided on both the front and rear surfaces of the shell 20 .

[0054] In one example, as shown in the attached Figure 1 As shown, the first reinforcement portion also includes a second supporting edge 23, which is protruded on the left end surface and / or right end surface of the shell 20. The second supporting edge 23 extends in the front-to-back direction and protrudes in the left-to-right direction toward the side away from the accommodating cavity 201. The front and rear ends of the second supporting edge 23 are connected to the first supporting edge 21. The cooperation between the first supporting edge 21 and the second supporting edge 23 can increase the overall stability of the shell 20.

[0055] Exemplarily, the upper end surface of the second supporting edge 23 and the upper end surface of the housing 20 are located in the same plane.

[0056] Exemplarily, the length of the second supporting edge 23 in the front-to-back direction is the same as the length of the housing 20 in the front-to-back direction.

[0057] Exemplarily, the first supporting edge 21 , the second supporting edge 23 and the housing 20 are integrally formed.

[0058] It can be understood that the extension direction of the first supporting edge 21 and the second supporting edge 23 can be set according to the shape design of the shell 20, and the extension direction is not limited to the above direction. Those skilled in the art can freely set it according to actual needs.

[0059] In one example, the housing 20 includes a second reinforcement portion, which is used to increase the bottom strength of the housing 20. Figure 3 As shown, the second reinforcement portion includes at least one first connecting beam 24 and / or at least one second connecting beam 25. The first connecting beam 24 and / or the second connecting beam 25 are protruded from the bottom of the shell 20. By setting the first connecting beam 24 and / or the second connecting beam 25, the bottom strength and mode of the shell 20 can be increased.

[0060] Exemplarily, the first connecting beam 24 and / or the second connecting beam 25 are located on an end surface of the bottom of the shell 20 away from the accommodating cavity 201 .

[0061] Exemplarily, the second reinforcement portion includes a first connecting beam 24 and a second connecting beam 25. The first connecting beam 24 extends in the left-right direction, which can improve the side collision performance of the bottom of the shell 20 and prevent the shell 20 from being greatly deformed during a side collision. The second connecting beam 25 extends in the front-to-back direction, which can improve the head-on collision performance of the bottom of the shell 20 and prevent the shell 20 from being greatly deformed during a head-on collision. One less first connecting beam 24 and at least one second connecting beam 25 are staggered to form several cross nodes, which can increase the structural stability of the bottom of the shell 20 and improve the offset collision performance of the bottom of the shell 20.

[0062] It can be understood that the extension directions of the first connecting beam 24 and the second connecting beam 25 can be set according to actual needs.

[0063] For example, the first connecting beam 24 and the second connecting beam 25 are integrally formed with the shell 20 by molding. Compared with the battery pack shell made of metal, the first connecting beam 24 and the second connecting beam 25 are easy to process and have a good reinforcement effect on the shell 20. No additional welding or stamping process is required, which is conducive to reducing production costs.

[0064] Exemplarily, the width dimension of the first connecting beam 24 in the left-right direction is the same as the width dimension of the housing 20 in the left-right direction.

[0065] Exemplarily, the length dimension of the second connecting beam 25 in the front-to-rear direction is the same as the length dimension of the housing 20 in the front-to-rear direction.

[0066] Combined with attachment Figure 4 and attached Figure 5 The present invention also provides a battery pack comprising the aforementioned battery pack housing 20 and a cover 30. The cover 30 is connected to the upper end of the housing 20 and is used to encapsulate the battery cells within the accommodating cavity 201. By using a composite material for the housing 20, the battery pack is lightweight and has excellent rigidity, strength, and modal properties, ensuring overall quality and enhancing safety.

[0067] In one example, in conjunction with Figure 4 and attached Figure 5 A recessed portion 31 is provided at the upper end of the cover body 30, and the recessed portion 31 is sunken from top to bottom toward the side close to the shell 20, and a protrusion 32 is formed at the lower end of the cover body 30. The recessed portion 31 cooperates with the protrusion 32 to form reinforcing ribs at the upper and lower ends of the cover body 30, which can increase the structural strength and modality of the cover body 30.

[0068] Exemplarily, the cover 30 is a metal cover.

[0069] Illustratively, the cover body 30 is made by a sheet metal stamping process, and the recessed portion 31 and the protruding portion 32 are integrally formed with the cover body 30 by the stamping process.

[0070] In one example, in conjunction with Figure 4 and attached Figure 5 The cover body 30 also includes connecting edges 33, which are protruding from the left and right ends and the front and rear ends of the cover body 30. The connecting edges 33 are used to contact and connect with the first supporting edge 21 and the second supporting edge 23 to achieve the connection between the cover body 30 and the shell 20.

[0071] Exemplarily, the cover 30 and the housing 20 are sealed and connected by gluing, screwing or the like.

[0072] The present utility model also proposes a vehicle, including a vehicle body, on which the above-mentioned battery pack is installed. The use of the above-mentioned battery pack is conducive to improving the lightweight effect of the vehicle, can ensure that the battery pack is installed stably and firmly, reduces the probability of the battery pack being deformed or falling off due to collision impact in a vehicle collision accident, and improves the passive safety of the vehicle.

[0073] Because the composite material battery pack has good thermal insulation properties, it can ensure that the temperature of the internal battery cells does not drop too low in some low-temperature driving environments, which helps to ensure that the vehicle's cruising range is not affected by the external low-temperature environment and improves the vehicle's user experience.

[0074] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A battery pack hanging ear structure, characterized in that: The invention comprises a hanging ear body (10) made of PA6+GF45 material, wherein the hanging ear body (10) is located on the left and right sides of a battery pack shell (20), a functional hole (101) is opened on the hanging ear body (10), and at least one layer of glass fiber cloth layer (11) is connected to the upper end face and / or the lower end face of the hanging ear body (10), and the functional hole (101) passes through the hanging ear body (10) and the glass fiber cloth layer (11) in the vertical direction.

2. The battery pack ear structure according to claim 1, characterized in that: The glass fiber cloth layer (11) comprises a transverse glass fiber cloth layer (111) or a longitudinal glass fiber cloth layer (112), wherein the transverse glass fiber cloth layer (111) comprises a texture extending in a front-to-back direction, and the longitudinal glass fiber cloth layer (112) comprises a texture extending in an up-down direction.

3. The battery pack hanging ear structure according to claim 2, characterized in that: The upper end surface and the lower end surface of the lifting ear main body (10) are both connected to three layers of the glass fiber cloth layers (11), and the three layers of the glass fiber cloth layers (11) include two layers of the transverse glass fiber cloth layers (111) and one layer of the longitudinal glass fiber cloth layer (112). The longitudinal glass fiber cloth layer (112) is located between the two layers of the transverse glass fiber cloth layers (111) in the vertical direction. The upper end surface and the lower end surface of the lifting ear main body (10) are both connected to the transverse glass fiber cloth layers (111).

4. A battery pack housing, characterized in that: A shell (20) is made of PA6+GF45 material, and the left and right ends of the shell (20) are provided with the ear structure of the battery pack according to any one of claims 1 to 3. The shell (20) includes a accommodating cavity (201), and the accommodating cavity (201) is used to accommodate a battery cell.

5. The battery pack housing according to claim 4, wherein: The shell (20) includes a first reinforcement portion, the first reinforcement portion includes a first supporting edge (21) and a connecting rib (22), the first supporting edge (21) is protruding from the front end face and / or the rear end face of the shell (20), the first supporting edge (21) extends in the left-right direction, and protrudes and extends toward a side away from the accommodating cavity (201) in the front-back direction, the connecting rib (22) is protruding from the front end face and / or the rear end face of the shell (20), and the upper end of the connecting rib (22) is connected to the first supporting edge (21).

6. The battery pack housing according to claim 5, wherein: The first reinforcement portion further includes a second supporting edge (23), the second supporting edge (23) being protruded from the left end surface and / or the right end surface of the shell (20), the second supporting edge (23) extending in the front-to-back direction, and protruding and extending in the left-to-right direction toward a side away from the accommodating cavity (201), and the front and rear ends of the second supporting edge (23) being connected to the first supporting edge (21).

7. The battery pack housing according to claim 4, wherein: The shell (20) includes a second reinforcement portion, the second reinforcement portion includes at least one first connecting beam (24) and / or at least one second connecting beam (25), and the first connecting beam (24) and / or the second connecting beam (25) are protruded from the bottom of the shell (20).

8. The battery pack housing according to claim 7, wherein: The second reinforcement portion includes the first connecting beam (24) and the second connecting beam (25), the first connecting beam (24) extending in the left-right direction, the second connecting beam (25) extending in the front-back direction, and at least one first connecting beam (24) and at least one second connecting beam (25) are staggered.

9. A battery pack, characterized in that: The battery pack shell comprises the battery pack shell according to any one of claims 4 to 8, and a cover body (30), wherein the cover body (30) is connected to the upper end of the shell (20).

10. A vehicle, characterized in that: The vehicle comprises a vehicle body, on which the battery pack according to claim 9 is mounted.

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