Battery pack and vehicle

Abstract

The utility model provides a kind of battery pack and vehicle, comprising: main casing, main casing includes outer border and bottom plate component, bottom plate component is connected to the bottom of outer border to jointly define battery installation cavity, bottom plate component includes liquid cooling plate, liquid cooling plate is suitable for being connected with liquid cooling pipe;Wherein, outer border includes multiple side walls sequentially connected along circumference, and at least one of multiple side walls is structured as installation side wall, installation side wall is equipped with the through hole for passing liquid cooling pipe, battery installation cavity is equipped with reinforcing part, reinforcing part is connected and supported in the inside of installation side wall.The battery pack of the utility model embodiment can ensure the operation stability and use reliability of battery pack, and the reinforcing part connected and supported in the inside of installation side wall is arranged in battery installation cavity, to improve the structural strength of installation side wall, to improve the use safety of battery pack, and the structure of reinforcing part is simple, easy to install, can reduce production cost, use effect is better, and the scope of application is wider.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a battery pack and a vehicle having the battery pack. Background Technology

[0002] With the development of the national economy and the continuous improvement of people's living standards, vehicles are becoming increasingly important in daily life and travel. The environmental performance of vehicles during operation and the maintenance costs during later use are issues that need to be carefully considered during vehicle manufacturing. Existing vehicles are equipped with battery packs that can supply power to the entire vehicle to drive its operation and improve the environmental friendliness of vehicle use.

[0003] To ensure the reliability of the battery pack operation, a liquid cooling plate is installed inside the battery pack to cool it down. The liquid cooling plate is connected to a liquid cooling pipe, which continuously supplies coolant from the outside of the battery pack to the liquid cooling plate inside. However, the liquid cooling pipe passing through the battery pack shell will reduce the local structural strength of the battery pack shell, thereby affecting the structural strength of the battery pack shell. When the battery pack is impacted, the shell on the side with the liquid cooling pipe is prone to deformation, which will affect the safety of the battery pack. There is room for improvement. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a battery pack with a simple structure, convenient installation, guaranteed operational reliability, and improved safety.

[0005] A battery pack according to an embodiment of the present invention includes: a main housing, the main housing including an outer frame and a bottom plate assembly, the bottom plate assembly being connected to the bottom of the outer frame to jointly define a battery mounting cavity, the bottom plate assembly including a liquid cooling plate adapted to be connected to a liquid cooling pipe; wherein, the outer frame includes a plurality of sidewalls connected sequentially in a circumferential direction, and at least one of the plurality of sidewalls is configured as a mounting sidewall, the mounting sidewall having a through hole for the liquid cooling pipe to pass through, and a reinforcing member being provided in the battery mounting cavity, the reinforcing member being connected and supported on the inner side of the mounting sidewall.

[0006] According to an embodiment of the present invention, a liquid cooling plate is provided inside the battery pack to cool the internal components of the battery pack, thereby ensuring the operational stability and reliability of the battery pack. A through-hole is provided on the mounting sidewall for a liquid cooling pipe connected to the liquid cooling plate to pass through. Furthermore, a reinforcing member is provided inside the battery mounting cavity, connecting and supporting the inner side of the mounting sidewall. This improves the structural strength of the mounting sidewall, enhancing the safety of the battery pack. The reinforcing member has a simple structure, is easy to install, reduces production costs, provides better performance, and has a wider range of applications.

[0007] According to some embodiments of the present invention, the battery pack has at least two through holes on the mounting sidewall, at least one of the two through holes being a liquid inlet through hole and at least the other being a liquid outlet through hole, and each through hole is provided with at least one reinforcing member.

[0008] According to some embodiments of the present invention, in the battery pack, the distance between each of the reinforcing members and the corresponding through hole is less than the diameter of the through hole.

[0009] According to some embodiments of the present invention, in the battery pack, at least two of the through holes are provided in a one-to-one correspondence with at least two of the reinforcing members;

[0010] And / or, at least two of the said through holes and at least two of the said reinforcing members are distributed along the length of the mounting sidewall.

[0011] According to some embodiments of the present invention, in a battery pack, one of the at least two reinforcing members is inclined relative to the base plate assembly, and the upper surface of the one of the at least two reinforcing members forms a clearance area for avoiding the explosion-proof valve.

[0012] According to some embodiments of the present invention, in the battery pack, at least two of the through holes are arranged opposite each other in the length direction of the mounting sidewall, and at least a portion of the projections of the at least two through holes along the length direction of the mounting sidewall overlap.

[0013] And / or, at least a portion of the reinforcing member is disposed directly opposite the corresponding through hole in the length direction of the mounting sidewall.

[0014] According to some embodiments of the present invention, in the battery pack, one end of the reinforcing member is connected to the inner side of the mounting sidewall, and the bottom of the reinforcing member is connected to the base plate assembly.

[0015] And / or, the reinforcing member is constructed as a long strip-shaped reinforcing column, and the reinforcing column extends along the penetration direction of the liquid cooling pipe.

[0016] According to some embodiments of the present invention, the reinforcing member of the battery pack is a hollow member, and a hollow reinforcing cavity is formed inside the reinforcing member.

[0017] One end of the hollow reinforcing cavity is open toward the mounting sidewall, and the other end is open toward the battery mounting cavity.

[0018] According to some embodiments of the present invention, in the battery pack, the sidewall facing the battery mounting cavity has an inwardly protruding support portion, and the reinforcing member is connected to the support portion.

[0019] And / or, the mounting sidewall is provided with a buffer cavity.

[0020] This utility model also proposes a vehicle.

[0021] The vehicle according to the embodiments of the present invention includes the battery pack described in any of the above claims.

[0022] The vehicle and the aforementioned battery pack have the same advantages over the prior art, which will not be repeated here.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a partial structural diagram of a battery pack according to an embodiment of the present utility model. Figure 1 ;

[0026] Figure 2 This is a partial cross-sectional view of a battery pack according to an embodiment of the present utility model. Figure 1 ;

[0027] Figure 3 This is a partial cross-sectional view of a battery pack according to an embodiment of the present utility model. Figure 2 ;

[0028] Figure 4 This is a partial structural diagram of a battery pack according to an embodiment of the present utility model. Figure 2 .

[0029] Figure label:

[0030] Battery pack 100,

[0031] Main housing 1, outer frame 11, base plate assembly 12, battery mounting cavity 13, mounting side wall 14, buffer cavity 141, support part 142, through hole 143, explosion-proof valve 144, liquid cooling pipe 15.

[0032] Reinforcing component 2, clearance area 21, hollow reinforcing cavity 22, connecting component 23. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is for reference. Figures 1-4 The battery pack 100 according to the present utility model embodiment has a simple structure, is easy to install, can ensure the operational reliability of the battery pack 100, and can improve the safety of the battery pack 100 in use.

[0037] like Figures 1-4 As shown, a battery pack 100 according to an embodiment of the present invention includes: a main housing 1.

[0038] The main housing 1 includes an outer frame 11 and a bottom plate assembly 12. The bottom plate assembly 12 is connected to the bottom of the outer frame 11 to jointly define the battery mounting cavity 13. The bottom plate assembly 12 includes a liquid cooling plate adapted to be connected to a liquid cooling pipe 15. The outer frame 11 includes a plurality of sidewalls connected in sequence along the circumference, and at least one of the plurality of sidewalls is configured as a mounting sidewall 14. The mounting sidewall 14 is provided with a through hole 143 for passing through the liquid cooling pipe 15. A reinforcing member 2 is provided in the battery mounting cavity 13, and the reinforcing member 2 is connected and supported on the inner side of the mounting sidewall 14.

[0039] The battery pack 100 is an integrated unit assembled from multiple battery modules, used to store and provide electrical energy. The battery pack 100 is a higher-level component in the battery system, typically consisting of several battery modules, connectors, a battery management system, a cooling system, electrical interfaces, and a casing. The battery pack 100 is the core energy storage unit for new energy vehicles, providing power to drive the vehicle and improving its environmental friendliness.

[0040] Specifically, the battery pack 100 is provided with a main housing 1, which is located on the outermost side of the battery pack 100. Mounting points can be provided on the outside of the main housing 1 so that the battery pack 100 can be connected to other structures through the mounting points of the main housing 1, ensuring the installation reliability of the battery pack 100. A battery mounting cavity 13 is formed inside the main housing 1. The battery mounting cavity 13 can be used to install the structures required for the operation of the battery pack 100, and the main housing 1 can protect the internal structure of the battery pack 100, ensuring the operation reliability of the battery pack 100.

[0041] In addition, the main housing 1 is provided with an outer frame 11 and a bottom plate assembly 12, and the main housing 1 is also provided with a top plate. The bottom plate assembly 12 can be connected to the bottom of the outer frame 11 through connectors, etc., and the top plate can be connected to the top of the outer frame 11 through connectors, etc., so that the top plate, the outer frame 11 and the bottom plate assembly 12 can jointly define the battery mounting cavity 13. The battery mounting cavity 13 can be used to install battery modules, etc., and the bottom plate assembly 12 includes a liquid cooling plate, so that after the battery module is installed in the battery mounting cavity 13, the liquid cooling plate can cool the battery module to ensure the operational stability of the battery module and extend the service life of the battery pack 100.

[0042] Furthermore, the liquid cooling plate is equipped with a liquid cooling pipe 15, which can be connected to the liquid cooling plate. The liquid cooling pipe 15 is equipped with an inlet pipe and an outlet pipe. Coolant can enter the liquid cooling pipe 15 through the inlet pipe and exchange heat with the battery module inside the liquid cooling plate to cool the battery module. After heat exchange, the coolant can flow out of the liquid cooling plate through the outlet pipe to ensure the reliability of the liquid cooling plate.

[0043] Furthermore, the main housing 1 can be rectangular or the like, and the outer frame 11 is provided with multiple sidewalls, such as four, five or six, etc. The multiple sidewalls are connected in sequence to form a complete outer frame 11, and together with the bottom plate assembly 12 and the top plate, they can define the battery mounting cavity 13. At least one of the multiple sidewalls is constructed as a mounting sidewall 14, that is, one, two or three of the multiple sidewalls are constructed as mounting sidewalls 14. In this embodiment, one sidewall is constructed as a mounting sidewall 14. The mounting sidewall 14 is located at one end of the main housing 1 along its length, and the mounting sidewall 14 is provided with a through hole 143. The liquid cooling pipe 15 of the liquid cooling plate can be inserted through the through hole 143, so that the coolant can be transported from outside the main housing 1 to the liquid cooling plate inside the main housing 1, ensuring the reliability of the liquid cooling plate.

[0044] Meanwhile, a reinforcing member 2 is also provided in the battery mounting cavity 13. The reinforcing member 2 can be connected to the main housing 1 by welding or connecting member 23, and the reinforcing member 2 can be connected and supported on the inner side of the mounting side wall 14. The mounting side wall 14 is provided with a through hole 143, and the liquid cooling pipe 15 can be inserted through the through hole 143, which will lead to a reduction in the local structural strength of the mounting side wall 14. The reinforcing member 2 is provided in the mounting side wall 14 to support the mounting side wall 14, thereby improving the structural strength of the mounting side wall 14. When the battery pack 100 encounters a collision, the collision force can be transmitted through the mounting side wall 14 to the reinforcing member 2 to disperse and weaken the collision force, ensuring the safety of the battery pack 100.

[0045] According to the embodiment of the present utility model, the battery pack 100 is provided with a liquid cooling plate inside the battery pack 100, which can cool the inside of the battery pack 100 to ensure the operational stability and reliability of the battery pack 100. The mounting side wall 14 is provided with a through hole 143 for passing through a liquid cooling pipe 15 connected to the liquid cooling plate. The battery mounting cavity 13 is provided with a reinforcing member 2 connected to and supported on the inner side of the mounting side wall 14, which can improve the structural strength of the mounting side wall 14 and improve the safety of the battery pack 100. The reinforcing member 2 has a simple structure, is easy to install, can reduce production costs, has better performance, and is more widely applicable.

[0046] In some embodiments, the mounting sidewall 14 is provided with at least two through holes 143, at least one of the at least two through holes 143 is a liquid inlet through hole and at least the other is a liquid outlet through hole, and each through hole 143 is provided with at least one reinforcing member 2.

[0047] Specifically, the mounting sidewall 14 is provided with through holes 143 for passing through liquid cooling pipes 15. There can be at least two through holes 143, that is, there can be two, three or four through holes 143. At least one of the at least two through holes 143 is a liquid inlet through hole and at least the other is a liquid outlet through hole. That is, there can be one, two or three liquid inlet through holes and one, two or three liquid outlet through holes. In actual installation, there can also be at least two liquid cooling pipes 15. At least one of the at least two liquid cooling pipes 15 is a liquid inlet pipe and at least the other is a liquid outlet pipe. The liquid inlet pipe can be inserted into the liquid inlet through hole and the liquid outlet pipe can be inserted into the liquid outlet through hole. That is, the liquid inlet pipe and the liquid inlet through hole are set one-to-one and the liquid outlet pipe and the liquid outlet through hole are set one-to-one.

[0048] Therefore, each inlet pipe extends into the battery mounting cavity 13 through a corresponding inlet through-hole, and each outlet pipe extends into the battery mounting cavity 13 through a corresponding outlet through-hole, ensuring the installation reliability of the inlet and outlet pipes and the reliability of the connection between the inlet and outlet pipes and the liquid cooling plate. This prevents the inlet and outlet pipes from disconnecting from the liquid cooling plate when the battery pack 100 is shaken, which would cause coolant to leak into the battery mounting cavity 13, thus ensuring the reliability of the battery pack 100 in use.

[0049] Furthermore, each through hole 143 is provided with at least one reinforcing member 2, that is, each through hole 143 may be provided with one, two or three reinforcing members 2, so that multiple through holes 143 need to be provided with multiple reinforcing members 2. Multiple reinforcing members 2 can respectively connect and support the mounting sidewalls 14 on both sides of multiple through holes 143, so as to improve the structural strength of the mounting sidewalls 14, ensure the reliability of the main housing 1, and improve the overall structural strength of the battery pack 100, so as to ensure the safety of the battery pack 100.

[0050] In some embodiments, the distance between each reinforcing member 2 and the corresponding through hole 143 is less than the diameter of the through hole 143.

[0051] Specifically, each through hole 143 is provided with at least one reinforcing member 2, and the distance between each reinforcing member 2 and the corresponding through hole 143 is less than the diameter of the through hole 143. That is, the distance between the reinforcing member 2 and the corresponding through hole 143 is set to be small, so that the reinforcing member 2 can be set close to the through hole 143. Setting through holes 143 on the mounting sidewall 14 will result in lower structural strength of the mounting sidewall 14 at the through hole 143. Setting the corresponding reinforcing member 2 close to the through hole 143 can improve the structural strength of the mounting sidewall 14 at the through hole 143, thereby ensuring the reliability of the mounting sidewall 14 and improving the reliability of the through hole 143, and ensuring the installation reliability of the liquid cooling pipe 15.

[0052] In some embodiments, at least two through holes 143 are provided in a one-to-one correspondence with at least two reinforcing members 2.

[0053] Specifically, at least two through holes 143 are provided, that is, two, three, or four through holes 143 can be provided, etc. In this embodiment, for example... Figure 1 As shown, there are two through holes 143 and two liquid cooling pipes 15. The two liquid cooling pipes 15 are respectively inserted into the two through holes 143 to ensure the reliability of the liquid cooling pipes 15 installation. The reinforcing members 2 are also set to at least two, that is, the reinforcing members 2 are set to two, three or four, etc. The at least two through holes 143 and the at least two reinforcing members 2 are set in a one-to-one correspondence, that is, each through hole 143 is provided with a corresponding reinforcing member 2.

[0054] In this way, each reinforcing member 2 can strengthen the structural strength of the mounting sidewall 14 at the corresponding through hole 143, so as to avoid deformation at the through hole 143, which could cause the liquid cooling pipe 15 to shift and thus lead to coolant leakage, thereby ensuring the installation reliability of the liquid cooling pipe 15 and ensuring the safety of the battery pack 100.

[0055] In other embodiments, at least two through holes 143 and at least two reinforcing members 2 are distributed along the length of the mounting sidewall 14.

[0056] Specifically, at least two through holes 143 and at least two reinforcing members 2 are provided. The at least two through holes 143 and at least two reinforcing members 2 are provided in a one-to-one correspondence. The at least two through holes 143 and at least two reinforcing members 2 can be distributed along the length of the mounting sidewall 14. That is, the at least two through holes 143 are spaced apart along the length of the mounting sidewall 14, and the at least two reinforcing members 2 are also spaced apart along the length of the mounting sidewall 14. Each reinforcing member 2 is distributed on the same side of the corresponding through hole 143, so that the reinforcing members 2 and through holes 143 can be distributed on the mounting sidewall 14 in the pattern of one reinforcing member 2 and one through hole 143.

[0057] In this way, the structural strength of the mounting sidewall 14 can be uniformly improved, avoiding situations where the local structural strength of the mounting sidewall 14 is too high or too low, which could lead to local deformation of the mounting sidewall 14. This ensures the reliability of the mounting sidewall 14 and improves the overall safety of the battery pack 100.

[0058] In some embodiments, one of the at least two reinforcing members 2 is inclined relative to the base plate assembly 12, and the upper surface of the one of the at least two reinforcing members 2 forms a clearance area 21 for avoiding the explosion-proof valve 144.

[0059] Specifically, reinforcement 2 is set to at least two, and as follows: Figure 1 As shown, there are two reinforcing members 2, which are respectively set to the liquid inlet hole and the liquid outlet hole. This allows the two reinforcing members 2 to enhance the structural strength of the mounting sidewall 14 at the liquid inlet hole and the liquid outlet hole, ensuring the reliability of the mounting sidewall 14. At least one of the two reinforcing members 2 is set to be inclined relative to the base plate assembly 12, that is, the upper wall of the reinforcing member 2 is inclined.

[0060] In addition, such as Figure 1 As shown, the upper wall of the reinforcing member 2 is set to slope downwards in a direction away from the mounting side wall 14. The battery mounting cavity 13 is still provided with structures such as BDU, and the BDU is connected to wire harnesses, etc. Setting the reinforcing member 2 to be inclined relative to the base plate assembly 12 allows the reinforcing member 2 to avoid the wire harness, ensuring the rationality of the spatial arrangement and ensuring the overall operational reliability of the battery pack 100. Furthermore, setting the reinforcing member 2 to be inclined relative to the base plate assembly 12 allows the reinforcing member 2, the mounting side wall 14, and the base plate assembly 12 to form a triangle, thereby improving the support effect of the reinforcing member 2, improving the structural strength of the mounting side wall 14, and ensuring the reliability of the mounting side wall 14 in use.

[0061] Furthermore, the mounting side wall 14 is also equipped with an explosion-proof valve 144. The explosion-proof valve 144 can monitor the pressure and temperature inside the battery pack 100. When the pressure or temperature exceeds the set value, the explosion-proof valve 144 can automatically open to release the gas accumulated inside the battery pack 100, thereby reducing the pressure and preventing the battery pack 100 from rupturing or exploding, ensuring the safety of the battery pack 100 in use, and so on. Figure 1 and Figure 3 As shown, the upper surface of one of the at least two reinforcing members 2 forms a clearance area 21 for avoiding the explosion-proof valve 144. The clearance area 21 can be configured as a clearance groove, etc. The clearance area 21 is distributed opposite to the explosion-proof valve 144 to ensure the normal opening of the explosion-proof valve 144, thereby ensuring the reliability of the explosion-proof valve 144 and improving the safety of the battery pack 100.

[0062] In some embodiments, at least two through holes 143 are disposed opposite each other in the length direction of the mounting sidewall 14, and at least a portion of the projections of the at least two through holes 143 along the length direction of the mounting sidewall 14 overlap.

[0063] Specifically, at least two through holes 143 are provided in the mounting sidewall 14, extending along the thickness direction of the mounting sidewall 14, and as shown in the figure. Figure 1As shown, at least two through holes 143 are arranged facing each other along the length of the mounting sidewall 14, and at least part of the projection of the at least two through holes 143 along the length of the mounting sidewall 14 overlaps. The at least two through holes 143 can be configured as through holes 143 of the same shape or through holes 143 of different shapes. The configuration is flexible, which facilitates the installation of the liquid cooling pipe 15 and ensures the consistency of the structural strength of the mounting sidewall 14 at the through holes 143.

[0064] In other embodiments, at least a portion of the reinforcing member 2 is positioned directly opposite the corresponding through hole 143 in the length direction of the mounting sidewall 14.

[0065] Specifically, the reinforcing member 2 can support the mounting sidewall 14, and at least a portion of the reinforcing member 2 is arranged directly opposite to the corresponding through hole 143 in the length direction of the mounting sidewall 14. That is, after the reinforcing member 2 corresponding to the through hole 143 is installed in the battery mounting cavity 13, at least a portion of the reinforcing member 2 can be distributed directly opposite to the through hole 143 in the length direction of the mounting sidewall 14. This allows the reinforcing member 2 to enhance the structural strength of the mounting sidewall 14 at the through hole 143, ensuring the reliability of the reinforcing member 2. When the through hole 143 is subjected to force, the force can be transmitted to the reinforcing member 2, thereby dispersing and weakening the force to ensure the reliability of the through hole 143.

[0066] In some embodiments, one end of the reinforcing member 2 is connected to the inner side of the mounting sidewall 14, and the bottom of the reinforcing member 2 is connected to the base plate assembly 12.

[0067] Specifically, the reinforcing member 2 is disposed within the battery mounting cavity 13, and one end of the reinforcing member 2 can be connected to the inner side of the mounting side wall 14. The bottom of the reinforcing member 2 can be connected to the base plate assembly 12, thereby allowing the bottom of the mounting side wall 14 to be directly connected to the base plate assembly 12. The mounting side wall 14 can also be connected to the base plate assembly 12 through the reinforcing member 2. When the battery pack 100 is impacted, the impact force can be transmitted to the base plate assembly 12 through the mounting side wall 14, and also to the reinforcing member 2 through the mounting side wall 14, and then to the base plate assembly 12 through the reinforcing member 2. This increases the transmission path of the impact force, thereby weakening the impact force. When the impact force is transmitted from the mounting side wall 14 to the reinforcing member 2 and then to the base plate assembly 12, the transmission direction of the impact force changes multiple times, thereby improving the weakening effect of the impact force and enhancing the safety of the battery pack 100.

[0068] Furthermore, a connecting reinforcing member 2 is provided between the mounting sidewall 14 and the base plate assembly 12, which can increase the area where the mounting sidewall 14 and the base plate assembly 12 are connected, thereby improving the support force on the mounting sidewall 14 and ensuring the installation reliability of the mounting sidewall 14.

[0069] In other embodiments, the reinforcing member 2 is constructed as a long strip-shaped reinforcing column, and the reinforcing column extends along the penetration direction of the liquid cooling pipe 15.

[0070] Specifically, such as Figures 1-3 As shown, the reinforcing member 2 is configured as a long strip-shaped reinforcing column, and the reinforcing column extends along the penetration direction of the liquid cooling pipe 15. That is, one end of the reinforcing column is supported on the mounting side wall 14, and the other end of the reinforcing column extends away from the mounting side wall 14 along the penetration direction of the liquid cooling pipe 15. This allows the impact force to be transmitted through the mounting side wall 14 to the reinforcing member 2 when the mounting side wall 14 is impacted, and then transmitted through the reinforcing member 2 away from the mounting side wall 14, thereby weakening the impact force and improving the reliability of the reinforcing member 2. Furthermore, constructing the reinforcing member 2 as a long strip-shaped reinforcing column can increase the contact area between the reinforcing member 2 and the base plate assembly 12, improve the installation reliability of the reinforcing member 2, and thus improve the reliability of the reinforcing member 2 in use.

[0071] In some embodiments, the reinforcing member 2 is constructed as a hollow member, and a hollow reinforcing cavity 22 is formed inside the reinforcing member 2, wherein one end of the hollow reinforcing cavity 22 is open toward the mounting sidewall 14 and the other end is open toward the battery mounting cavity 13.

[0072] Specifically, the reinforcing member 2 can be configured as a reinforcing column, and as follows: Figures 2-3 As shown, the reinforcing member 2 is a hollow member with a hollow reinforcing cavity 22 inside, which can improve the structural strength of the reinforcing member 2. When the impact force is transmitted to the reinforcing member 2, the hollow reinforcing cavity 22 can weaken the impact force to improve the reliability of the reinforcing member 2 in supporting the mounting side wall 14 and ensure the safety of the mounting side wall 14. One end of the hollow reinforcing cavity 22 is open to the mounting side wall 14 and the other end is open to the battery mounting cavity 13, so that the impact force can be weakened through the hollow reinforcing cavity 22 while being transmitted to the reinforcing member 2. During the transmission along the reinforcing member 2, the hollow reinforcing cavity 22 can continuously weaken the impact force to improve the weakening effect of the impact force.

[0073] In some embodiments, the mounting sidewall 14 has an inwardly protruding support portion 142 on the side facing the battery mounting cavity 13, and the reinforcing member 2 is connected to the support portion 142.

[0074] Specifically, the mounting sidewall 14 has a support portion 142, and as... Figures 1-3As shown, the support portion 142 is disposed on the side of the mounting sidewall 14 facing the battery mounting cavity 13 and protrudes inward. The support portion 142 can be configured as a support block, etc. In this embodiment, the support portion 142 is constructed as a strip and extends along the length direction of the mounting sidewall 14. The support portion 142 is disposed at the bottom of the mounting sidewall 14 and can be connected to the base plate assembly 12 by welding or other means to support the mounting sidewall 14, ensuring the structural strength of the bottom of the mounting sidewall 14 and ensuring the reliability of the mounting sidewall 14. The reinforcing member 2 can be connected to the support portion 142, thereby enabling the reinforcing member 2 to support the support portion 142. At least a portion of the through hole 143 passes through the support portion 142. Connecting the reinforcing member 2 to the support portion 142 can improve the reliability of the support portion 142 and ensure the reliability of the through hole 143.

[0075] In some other embodiments, a buffer cavity 141 is provided inside the mounting sidewall 14.

[0076] Specifically, such as Figures 2-3 As shown, a buffer cavity 141 is provided inside the mounting sidewall 14. When the mounting sidewall 14 is involved in a collision, the buffer cavity 141 can buffer the collision force to weaken the effect of the collision force and improve the reliability of the mounting sidewall 14. The buffer cavity 141 is provided with multiple reinforcing ribs that are spaced apart in the vertical direction. The reinforcing ribs can divide the buffer cavity 141 into multiple buffer sub-cavities, so that the collision force can be transmitted along multiple reinforcing ribs to disperse the effect of the collision force. The multiple buffer sub-cavities can buffer the collision force multiple times to ensure the weakening effect of the collision force and improve the safety of the mounting sidewall 14.

[0077] In addition, such as Figure 3 As shown, the base plate assembly 12 may also be provided with a buffer cavity 141, so that when the bottom of the battery pack 100 is impacted, the buffer cavity 141 of the base plate assembly 12 can weaken the impact force, thereby improving the protection effect on the bottom of the battery module and thus improving the safety of the battery pack 100.

[0078] This utility model also proposes a vehicle.

[0079] The vehicle according to the present invention includes the battery pack 100 of any of the above claims.

[0080] According to the vehicle of this utility model embodiment, a battery pack 100 is provided, and a liquid cooling plate is provided inside the battery pack 100 to cool the inside of the battery pack 100, so as to ensure the operational stability and reliability of the battery pack 100. The mounting side wall 14 is provided with a through hole 143 for passing through a liquid cooling pipe 15 connected to the liquid cooling plate. A reinforcing member 2 is provided inside the battery mounting cavity 13 to connect and support the inner side of the mounting side wall 14, thereby improving the structural strength of the mounting side wall 14 and improving the safety of the battery pack 100. The reinforcing member 2 has a simple structure, is easy to install, reduces production costs, has better performance, and has a wider range of applications.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery pack, characterized in that, include: The main housing includes an outer frame and a bottom plate assembly. The bottom plate assembly is connected to the bottom of the outer frame to jointly define a battery mounting cavity. The bottom plate assembly includes a liquid cooling plate adapted to be connected to a liquid cooling pipe. The outer frame includes a plurality of sidewalls connected in sequence along the circumference, and at least one of the plurality of sidewalls is configured as a mounting sidewall. The mounting sidewall is provided with a through hole for the liquid cooling pipe to pass through. The battery mounting cavity is provided with a reinforcing member, which is connected and supported on the inner side of the mounting sidewall.

2. The battery pack according to claim 1, characterized in that, The mounting sidewall is provided with at least two through holes, at least one of which is a liquid inlet through hole and at least the other is a liquid outlet through hole, and each through hole is provided with at least one of the reinforcing members.

3. The battery pack according to claim 2, characterized in that, The distance between each of the reinforcing members and the corresponding through hole is less than the diameter of the through hole.

4. The battery pack according to claim 2, characterized in that, At least two of the aforementioned through holes are provided in a one-to-one correspondence with at least two of the aforementioned reinforcing members; And / or, at least two of the said through holes and at least two of the said reinforcing members are distributed along the length of the mounting sidewall.

5. The battery pack according to claim 4, characterized in that, One of the at least two reinforcing members is inclined relative to the base plate assembly, and the upper surface of the one of the at least two reinforcing members forms a clearance area for avoiding the explosion-proof valve.

6. The battery pack according to claim 2, characterized in that, At least two of the through holes are arranged facing each other along the length of the mounting sidewall, and at least a portion of the projections of the at least two through holes along the length of the mounting sidewall overlap. And / or, at least a portion of the reinforcing member is disposed directly opposite the corresponding through hole in the length direction of the mounting sidewall.

7. The battery pack according to claim 1, characterized in that, One end of the reinforcing member is connected to the inner side of the mounting sidewall, and the bottom of the reinforcing member is connected to the base plate assembly. And / or, the reinforcing member is constructed as a long strip-shaped reinforcing column, and the reinforcing column extends along the penetration direction of the liquid cooling pipe.

8. The battery pack according to claim 1, characterized in that, The reinforcing member is a hollow component, and a hollow reinforcing cavity is formed inside the reinforcing member; One end of the hollow reinforcing cavity is open toward the mounting sidewall, and the other end is open toward the battery mounting cavity.

9. The battery pack according to claim 1, characterized in that, The mounting sidewall facing the battery mounting cavity has an inwardly protruding support portion, and the reinforcing member is connected to the support portion; And / or, the mounting sidewall is provided with a buffer cavity.

10. A vehicle, characterized in that, The battery pack includes any one of claims 1-9.

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