Battery pack and electric vehicle comprising same

Abstract

A battery pack (100) and an electric vehicle comprising same. The battery pack (100) comprises a battery body and a battery case (1). The battery case (1) comprises an upper cover (15), a bottom plate (12), and an accommodating cavity (14) for accommodating the battery body. The upper cover (15) and the bottom plate (12) are arranged at the top and the bottom of the accommodating cavity (14), respectively, a temperature adjustment member (16) is provided on the upper cover (15) and / or the bottom plate (12), and the temperature adjustment member (16) is used for adjusting the temperature in the accommodating cavity (14). The battery body is disposed in the accommodating cavity (14), and the battery body can be protected by means of the accommodating cavity (14), so that the service life of the battery body is prolonged. In addition, in the described form, the battery pack (100) can be assembled into an integrated module, thereby facilitating subsequent mounting of the battery pack (100) in the form of a module. The temperature adjustment member (16) is used for adjusting the temperature in the accommodating cavity (14); thus, the temperature of the battery body can be changed by means of the temperature adjustment member (16), so that the temperature of the battery body can be kept in a normal range, thereby improving the use safety of the battery body and prolonging the service life thereof, and increasing the universality of the battery pack (100) in different weather or working environments.

Description

Battery pack and electric vehicle containing the same

[0001] This application claims priority to Chinese Patent Application No. 2023118621566, filed on December 29, 2023. This application incorporates the entirety of the aforementioned Chinese Patent Application. Technical Field

[0002] The invention discloses a battery pack and an electric vehicle comprising the same. Background Art

[0003] Electric vehicles are increasingly popular with users due to their zero emissions, low noise, and economical operation and maintenance. Electric vehicles are powered by their onboard battery packs, which require recharging after the battery packs are depleted. Electric vehicle battery packs are generally categorized as either fixed or replaceable. Fixed battery packs are typically fixed to the vehicle and charged directly from the vehicle. Replaceable battery packs, on the other hand, are typically removably mounted on a bracket in the vehicle. The battery pack can be removed for individual replacement or charging operations, and then reinstalled in the vehicle after the replacement battery pack is fully charged.

[0004] Existing battery packs consist of a battery body and a battery case, with the battery body housed within the battery case, providing protection. However, the battery body can be affected by weather or the operating environment, causing its temperature to rise above or below its normal range. Operating at these temperatures can shorten the battery's service life and affect its proper operation and performance stability. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the battery body, affected by weather or operating environment, may cause the battery body temperature to rise above or fall below the normal temperature range. Operating at such temperatures shortens the battery body's service life and affects the normal operation and performance stability of the battery body. A battery pack and an electric vehicle incorporating the same are provided.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention discloses a battery pack, which includes a battery body and a battery case. The battery case includes an upper cover, a bottom plate and a accommodating cavity for accommodating the battery body. The upper cover and the bottom plate are respectively arranged at the top and bottom of the accommodating cavity. A temperature regulating component is provided on the upper cover and / or the bottom plate, and the temperature regulating component is used to adjust the temperature in the accommodating cavity.

[0008] In this solution, the above-mentioned structural form is adopted, and the battery body is arranged in the accommodating cavity. The battery body can be protected by the accommodating cavity, thereby improving the service life of the battery body. In addition, the above-mentioned form can assemble the battery pack into an integral module, which is convenient for the subsequent installation of the battery pack in the form of a module. In addition, by adopting the above-mentioned structural form, the thermostat can both lower the temperature in the accommodating cavity and increase the temperature in the accommodating cavity, which is conducive to ensuring that the temperature in the accommodating cavity is at a normal temperature, so as to avoid the working state of the battery body and other components in the accommodating cavity being affected by the weather or working environment, thereby ensuring the normal operation and performance stability of the battery body and other components in the accommodating cavity, and improving the safety and service life of the battery body and other components in the accommodating cavity. Especially when facing extremely cold or extremely hot weather, the thermostat can reduce the impact of the external temperature on the battery pack, which is conducive to increasing the use scenarios of the battery pack and improving the versatility of the battery pack. When both the upper cover and the bottom plate are provided with thermostats, it is conducive to ensuring the uniformity of the temperature regulation of the battery pack, thereby ensuring the functional integrity of the battery pack and improving the service life of the battery pack.

[0009] Preferably, the temperature regulating component includes a temperature regulating plate, on which a flow channel is provided, and the flow channel is used to circulate the temperature regulating medium; the inlet and outlet of the flow channel are respectively provided with connecting pipes, and the battery pack also includes a temperature regulating connector, and the temperature regulating connector is connected to the flow channel through the connecting pipe.

[0010] In this solution, the aforementioned structure allows the temperature-regulating medium to flow through the flow channel, lowering or raising the surface temperature of the upper cover and bottom plate, thereby lowering or raising the temperature within the storage chamber. Furthermore, the plate-shaped temperature-regulating element does not occupy much space in the height direction of the battery case, which helps ensure that the battery case size is within a reasonable range. A connecting tube connects the temperature-regulating connector to the flow channel of the temperature-regulating element, allowing the temperature-regulating connector to operate in either liquid cooling or heating mode, depending on the actual application scenario. The temperature-regulating medium in the flow channel is controlled by the temperature-regulating connector, thereby lowering or raising the temperature within the storage chamber.

[0011] In addition, the inlet and outlet of the flow channel are respectively provided with connecting pipes, and the two connecting pipes can respectively realize the inflow and discharge of the temperature control medium. That is to say, the inflow and discharge of the temperature control medium can be carried out simultaneously, which means that the temperature control medium can be continuously transported into the flow channel to replace the temperature control medium originally in the flow channel, thereby realizing that the temperature control component continuously controls the temperature of the accommodating cavity.

[0012] Preferably, the temperature regulating plate includes a plate body and a protective plate, the plate body is laid on the upper cover and / or the bottom plate; the flow channel is provided on the side of the plate body facing away from the upper cover or the bottom plate, and the flow channel is recessed in the direction close to the upper cover or the bottom plate; the protective plate at least covers the recessed area on the plate body to form a closed flow channel.

[0013] In this solution, the plate body and protective plate together form a closed flow channel, which helps prevent the temperature control medium from overflowing. Furthermore, the separate plate body and protective plate assembly form the temperature control plate, which improves manufacturing convenience. Directly creating a closed flow channel within a monolithic temperature control plate would be difficult to manufacture.

[0014] Preferably, the flow channel includes a plurality of branches connected in sequence, the branches are opened at least in the first area of ​​the temperature regulating plate, and the shape of the branches is a "X" shape; preferably, the plurality of branches are arranged at intervals along the length direction of the temperature regulating plate; and / or, each branch extends from one side of the temperature regulating plate to the other side of the temperature regulating plate along the width direction of the temperature regulating plate.

[0015] In this solution, the above-mentioned structural form is adopted, and multiple branches are arranged at intervals along the length direction of the temperature regulating plate, and each branch extends from one side of the temperature regulating plate to the other side of the temperature regulating plate along the width direction of the temperature regulating plate, further increasing the distribution area of ​​the branches, thereby making the area for the temperature regulating medium to circulate wider, thereby improving the temperature regulating efficiency of the temperature regulating medium on the entire battery body.

[0016] Preferably, the inlet and outlet of the flow channel are located on the same side of the temperature regulating plate, and the flow channel is arranged from the inlet around at least the top and / or bottom of the battery body and then reaches the outlet.

[0017] In this solution, the temperature-regulating medium flows into the flow channel from the inlet and then flows out of the outlet after circulating through the flow channel. Placing the inlet and outlet on the same side of the temperature-regulating plate increases the flow path of the flow channel, thereby increasing the flow area of ​​the temperature-regulating medium and improving the temperature-regulating efficiency of the entire battery body. Furthermore, this structural form facilitates the connection of the temperature-regulating connector to the flow channel.

[0018] Preferably, the end of the connecting pipe close to the thermostat connector is a hose, and the end of the connecting pipe close to the thermostat connector is sleeved on the interface of the thermostat connector through the hose;

[0019] And / or, the temperature regulating plate is provided with a recess on a side facing away from and / or facing the battery body, the recess being used to accommodate an end of the connecting tube close to the battery body;

[0020] And / or, the thermostatic connector is connected to at least one outer wall of the battery box, and the outer wall on which the thermostatic connector is mounted is made of a profile;

[0021] And / or, the temperature regulating component further includes a circulation pipe, the circulation pipe is laid in the flow channel, and the temperature regulating medium circulates in the circulation pipe.

[0022] In this solution, one end of the connecting pipe close to the thermostatic connector is set as a hose, which facilitates the floating of the thermostatic connector. By providing a recess, interference between the thermostatic plate and the battery body and the connecting pipe can be prevented, ensuring that the thermostatic plate and the battery body can work normally. In addition, providing a recess can also reduce the height dimension of the battery pack and improve the compactness of the battery pack structure. The side wall on which the thermostatic connector is installed is made of profile processing, which reduces the complexity of the processing technology and has the characteristics of low cost. Moreover, the outer wall made of profile processing has higher structural strength, so that the outer wall on which the thermostatic connector is installed has higher load-bearing capacity, thereby improving the stability and shock resistance of the battery pack. When the thermostatic medium flows in the circulation pipe, the circulation pipe is used to accommodate the thermostatic medium, which solves the sealing problem and reduces the sealing requirements between the protective plate and the plate body.

[0023] Preferably, the battery box further comprises a reinforcement member disposed between the temperature regulating member and the bottom plate, one end of the reinforcement member being connected to the bottom plate, and the other end of the reinforcement member extending in a direction close to the battery body for supporting the battery body;

[0024] And / or, the battery box further includes a buffer component, and the buffer component is arranged between the temperature regulating component and the bottom plate.

[0025] In this solution, the base plate is reinforced with reinforcements, increasing its strength. This reduces the risk of the base plate being crushed by the battery body, improves the strength and stability of the base plate in supporting the battery body, and thus enhances the stability and reliability of the battery body within the accommodating cavity. The buffering member cushions the battery body, preventing collision damage during transportation, further improving the safety and service life of the battery body.

[0026] Preferably, the battery box further comprises a mounting seat, an outer wall for mounting the thermostat connector is provided with a mounting opening, the mounting seat is embedded in the mounting opening and connected to the outer wall, and the thermostat connector is connected to the mounting seat.

[0027] In this solution, the mounting seat is embedded into the mounting opening and connected to the outer wall, and the thermostat connector is installed through the mounting seat to firmly install the thermostat connector on the outer wall of the battery box, thereby ensuring the installation strength requirements of the thermostat connector, thereby effectively improving the connection stability of the overall structure of the battery pack and the seismic performance of the battery pack.

[0028] Preferably, the middle area of ​​the mounting base has a through hole for communicating with the interior of the battery box, and a plurality of connection holes are provided on the mounting base, and the plurality of connection holes are distributed on the outer edge of the through hole. The temperature control connector is detachably connected to the plurality of connection holes on the mounting base, and is connected to the battery body after passing through the through hole.

[0029] In this solution, the aforementioned structure is adopted. The thermostatic connector extends from the outside of the battery pack through a through-hole and into the battery pack. The through-hole facilitates the thermostatic connector's connection to the battery case and the battery body. The thermostatic connector passes through the through-hole and connects with multiple connection holes distributed along the outer edge of the through-hole, thereby securing the thermostatic connector on all sides and ensuring a stable and reliable installation and connection. Furthermore, the multiple connection holes facilitate both installation and removal, and the structure is simple, making it very easy to manufacture.

[0030] Preferably, the outer wall of the battery box includes a front beam, a rear beam and two side walls, and the front beam and the rear beam are respectively connected to the front and rear ends of the two side walls, so that the front beam, the rear beam and the side walls are combined to form a frame structure, and the upper cover and the bottom plate are respectively covered on the top and bottom surfaces of the frame structure to form the accommodating cavity; the front beam and / or the rear beam have a cavity inside.

[0031] In this solution, the aforementioned structural form is adopted, and the frame structure protects the battery body, thereby extending the battery body's service life. Furthermore, the front beam and / or rear beam and the two side walls have internal cavities, which reduces the material used while ensuring the overall structural strength of the battery pack meets the requirements, thereby achieving the effect of reducing the weight of the battery pack. Furthermore, the frame structure formed by the front beam, rear beam, and two side walls reinforces the battery box and provides greater stability.

[0032] Preferably, the battery box further comprises a fixing member, the fixing member is located in the frame structure, and the fixing member is connected to the front beam, the rear beam and the two side walls;

[0033] Preferably, the battery box further includes a reinforcement member, which is arranged at a corresponding position of the frame structure and / or the fixing member on the bottom plate and extends in a direction away from the frame structure and / or the fixing member.

[0034] In this solution, the aforementioned structural form is adopted, and the fixings effectively strengthen the battery box's inherent structural strength, effectively preventing deformation of the battery pack, enhancing seismic performance, and significantly improving the safety and stability of the battery pack. Furthermore, the reinforcements at the connection between the base plate and the frame structure, as well as the corresponding locations of the fixings, enhance the structural strength of the battery box itself.

[0035] Preferably, the battery pack also includes a plurality of lock connection structures; a side wall bracket is provided on the side wall, and the side wall bracket includes a bracket body; a plurality of reinforcing ribs are provided on the outer side of the bracket body facing away from the battery body, and the plurality of reinforcing ribs are arranged at intervals along the length direction of the battery pack, and the lock connection structure is arranged between the reinforcing ribs.

[0036] In this solution, the aforementioned structure is adopted. By providing multiple outwardly protruding reinforcing ribs on the outer side of the bracket body, facing away from the battery body, and positioning the locking structure between these ribs, the connection strength between the multiple locking structures and the sidewall bracket is effectively strengthened, meeting the support strength requirements of the battery pack and ensuring locking accuracy. Furthermore, the multiple reinforcing ribs are spaced along the length of the bracket body, reducing the weight of the sidewall bracket while meeting the load-bearing strength requirements, reducing material consumption, and thus achieving the effect of reducing the weight of the battery pack. This achieves the simultaneous effect of reducing the weight of the battery pack and improving the support strength of the sidewall bracket. Furthermore, the manufacturing process is simple and cost-effective.

[0037] Preferably, the side wall bracket further comprises a thickened portion, the thickened portion being arranged in the bracket body and corresponding to the reinforcing rib on the outer side of the bracket body;

[0038] And / or, the outer side of the bracket body facing away from the battery body has a first weight-reducing groove recessed inwardly, the first weight-reducing groove is arranged between two adjacent reinforcing ribs, one end of the lock connection structure extends into the first weight-reducing groove and is connected to the bracket body, and the other end of the lock connection structure is exposed from the outer wall surface of the bracket body and is used for locking connection with the locking mechanism on the quick-change bracket;

[0039] And / or, the side wall bracket further includes a protective plate, one end of the protective plate is connected to the outer side of the bracket body facing away from the battery body, and the other end of the protective plate extends outward in a horizontal direction.

[0040] In this solution, the above-mentioned structural form is adopted, and the thickened part is arranged in the bracket body and corresponds to the reinforcing ribs on the outside of the bracket body, so that the thickened part and the reinforcing ribs can strengthen the inner and outer sides of the bracket body, making the structure of the bracket body more stable and reliable to meet the support strength requirements of the battery pack; at the same time, the thickened part is arranged in the bracket body, does not occupy additional space, and achieves a more compact structure.

[0041] The lock connection structure extends into the first weight-reducing groove to reduce the gap between the sidewall bracket and the quick-change bracket. This also creates a large contact area between the lock connection structure and the outer side of the bracket body, ensuring high installation stability. This meets the support strength requirements of the battery pack and ensures locking accuracy. Furthermore, the first weight-reducing groove reduces weight, reducing the overall weight of the battery pack and reducing material consumption. The first weight-reducing groove has a simple structure and is easy to manufacture.

[0042] The protective plate has a protective shielding function. The protective plate will be used to block the gap between the battery pack and the quick-change bracket, effectively preventing impurities from entering the gap between the battery pack and the quick-change bracket, greatly improving the safety and stability of electric vehicles.

[0043] Preferably, the bracket body has a plurality of weight-reducing cavities, the thickened portion is arranged in the weight-reducing cavity, and is connected to the inner wall of the bracket body close to the reinforcing rib, and the lock connection structure passes through the side wall of the bracket body and is connected to the thickened portion.

[0044] In this solution, the aforementioned structural form is adopted, and the multiple weight-reducing cavities have a weight-reducing effect, which can effectively reduce the overall weight of the side wall bracket. This allows the overall weight of the battery pack to be reduced while ensuring that the overall structural strength of the battery pack meets the requirements, thereby reducing the material used. Compared with the use of only one large weight-reducing cavity, the use of multiple weight-reducing cavities can utilize the connection structure between them to enhance the support strength of the side wall bracket, further strengthening the structural strength of the side wall bracket. At the same time, by providing the thickened portion in the weight-reducing cavity, the connection of the lock connection structure is ensured to be more stable and reliable, and does not occupy additional space. The thickened portion is connected to the inner wall of the bracket body near the reinforcing rib, and the connection structure between the thickened portion and the bracket body can be used to enhance the load-bearing strength of the side wall bracket. Therefore, when the lock connection structure passes through the side wall of the bracket body and is connected to the thickened portion, the connection of the lock connection structure can be ensured to be more stable and reliable.

[0045] The present invention further discloses an electric vehicle, which includes the battery pack as described above.

[0046] In this solution, the battery pack is applied to the electric vehicle, so that the battery body can be set in the accommodating cavity, and the battery body can be protected by the accommodating cavity, thereby increasing the service life of the battery body. In addition, the above form can assemble the battery pack into an integral module, which is convenient for the subsequent installation of the battery pack in the form of a module. In addition, with the above structural form, the thermostat can both lower the temperature in the accommodating cavity and raise the temperature in the accommodating cavity, which is conducive to ensuring that the temperature in the accommodating cavity is at a normal temperature, so as to avoid the working state of the battery body and other components in the accommodating cavity being affected by the weather or working environment, thereby ensuring the normal operation and performance stability of the battery body and other components in the accommodating cavity, and improving the safety and service life of the battery body and other components in the accommodating cavity. Especially when facing extremely cold or extremely hot weather, the thermostat can reduce the impact of the external temperature on the battery pack, which is conducive to increasing the use scenarios of the battery pack and improving the versatility of the battery pack. When both the upper cover and the bottom plate are provided with thermostats, it is conducive to ensuring the uniformity of the temperature regulation of the battery pack, thereby ensuring the functional integrity of the battery pack and increasing the service life of the battery pack.

[0047] The positive progressive effect of the present invention is that the battery body is arranged in the accommodating cavity, and the battery body can be protected by the accommodating cavity, thereby increasing the service life of the battery body, and the above form can assemble the battery pack into an integral module, which is convenient for the subsequent installation of the battery pack in the form of a module. In addition, with the above structural form, the thermostat can both lower the temperature in the accommodating cavity and increase the temperature in the accommodating cavity, which is conducive to ensuring that the temperature in the accommodating cavity is at a normal temperature, so as to avoid the working state of the battery body and other components in the accommodating cavity being affected by the weather or working environment, thereby ensuring the normal operation and performance stability of the battery body and other components in the accommodating cavity, and improving the safety and service life of the battery body and other components in the accommodating cavity. Especially when facing extremely cold or extremely hot weather, the thermostat can reduce the impact of the external temperature on the battery pack, which is conducive to increasing the use scenarios of the battery pack and improving the versatility of the battery pack. When both the upper cover and the bottom plate are provided with thermostats, it is conducive to ensuring the uniformity of the temperature regulation of the battery pack, thereby ensuring the functional integrity of the battery pack and increasing the service life of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] FIG1 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.

[0049] FIG2 is a schematic structural diagram of a battery pack according to an embodiment of the present invention, wherein the sealing cover is omitted.

[0050] FIG3 is a schematic structural diagram of a plate body at an upper cover according to an embodiment of the present invention.

[0051] FIG4 is a schematic diagram of the cross-sectional structure of the temperature regulating plate at the upper cover according to an embodiment of the present invention.

[0052] FIG5 is a schematic structural diagram of the plate body at the upper cover of an embodiment of the present invention when viewed from the bottom.

[0053] FIG6 is a schematic structural diagram of a plate body at the bottom plate according to an embodiment of the present invention.

[0054] FIG7 is a schematic diagram of the cross-sectional structure of the temperature regulating plate at the bottom plate according to an embodiment of the present invention.

[0055] FIG8 is a schematic structural diagram of a flow channel according to an embodiment of the present invention.

[0056] FIG9 is a schematic structural diagram of a battery box according to an embodiment of the present invention, wherein the upper cover is omitted.

[0057] FIG10 is a schematic cross-sectional view of a battery case according to an embodiment of the present invention.

[0058] FIG. 11 is a first structural diagram of a reinforcement member according to an embodiment of the present invention.

[0059] FIG12 is a second structural diagram of a reinforcement member according to an embodiment of the present invention.

[0060] FIG13 is a schematic diagram of a partial three-dimensional structure of a reinforcement member according to a preferred embodiment of the present invention.

[0061] FIG14 is a schematic cross-sectional view of a battery case according to a preferred embodiment of the present invention.

[0062] Figure 15 is a partial enlarged schematic diagram of point B in Figure 14. Figure 16 is a structural schematic diagram of a battery pack from another perspective of an embodiment of the present invention.

[0063] FIG17 is a schematic diagram of the three-dimensional structure of the battery pack according to an embodiment of the present invention from another perspective.

[0064] FIG18 is a partially enlarged schematic diagram of a battery pack according to an embodiment of the present invention.

[0065] FIG19 is a schematic diagram of the internal structure of the battery box at the electrical connector according to an embodiment of the present invention.

[0066] FIG20 is a schematic diagram of the internal structure of the battery pack at the lock connection structure according to an embodiment of the present invention.

[0067] FIG21 is a schematic diagram of the internal structure of the battery pack at the guide and positioning mechanism according to an embodiment of the present invention.

[0068] Description of reference numerals:

[0069] Battery pack 100, battery box 1, frame structure 11, bottom plate 12, accommodating cavity 14, upper cover 15, opening 151, first opening 1511, second opening 1512, closing cover 152, first sealing member 153, thermostat 16, thermostat plate 161, flow channel 1611, branch 16111, plate body 1612, protective plate 1613, connecting pipe 162, buffer member 17, front beam 18, mounting port 181, second cavity 1811, rear beam 19, maintenance port 191, side wall 20, maintenance compartment 201, side wall bracket 2011, bracket body 20111, reinforcing rib 201111, upper reinforcing rib 2011111, lower reinforcing rib 2011112, protective plate 2011113, notch 20111131, thickened portion 2 02, first connecting hole 2021, weight-reducing cavity 203, outer shell 204, transverse partition 205, longitudinal partition 206, inclined partition 207, first weight-reducing groove 208, second weight-reducing groove 209, first through hole 211, reinforcement 2, first reinforcement part 21, first support part 22, first cavity 23, second reinforcement part 24, second support part 25, third reinforcement part 26, protrusion 27, mounting seat 3, abutment part 31, connecting part 32, through hole 33, connecting hole 34, fixing part 4, transverse rib 41, longitudinal rib 42, functional part 5, electrical connector 51, thermostatic connector 52, pressure relief valve 53, sealing groove 6, lock connection structure 7, lock mounting seat 71, lock shaft 72, support shaft 73, guide positioning mechanism 8, positioning block 81, fastening component 82. DETAILED DESCRIPTION

[0070] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0071] As shown in Figures 1 to 21, this embodiment provides a battery pack 100, which includes a battery body and a battery case 1. The battery case 1 includes an upper cover 15, a bottom plate 12, and a receiving cavity 14 for receiving the battery body. The upper cover 15 and the bottom plate 12 are respectively arranged at the top and bottom of the receiving cavity 14. The upper cover 15 and the bottom plate 12 are provided with a thermostat 16 for regulating the temperature within the receiving cavity 14. By arranging the battery body within the receiving cavity 14, the battery body can be protected by the receiving cavity 14, thereby increasing the service life of the battery body. In addition, the above-mentioned form can assemble the battery pack 100 into an integral module, which facilitates the subsequent installation of the battery pack 100 in a modular form. Furthermore, with the above-described structure, the thermostat 16 can both lower and raise the temperature within the accommodating chamber 14, helping to maintain a normal temperature within the accommodating chamber 14. This prevents the operating conditions of components such as the battery body within the accommodating chamber 14 from being affected by weather or the operating environment, thereby ensuring the normal operation and performance stability of the components within the accommodating chamber 14 and improving the safety and service life of the components within the accommodating chamber 14. In particular, in extremely cold or hot weather, the thermostat 16 can reduce the impact of the external temperature on the battery pack 100, thereby increasing the battery pack 100's usability and enhancing its versatility. When both the upper cover 15 and the bottom plate 12 are equipped with the thermostat 16, this helps ensure uniform temperature regulation within the battery pack 100, thereby ensuring the functional integrity of the battery pack 100 and increasing its service life. The thermostat 16 is provided on both the upper cover 15 and the bottom plate 12, helping to ensure uniform temperature regulation within the battery pack 100, thereby ensuring the functional integrity and service life of the battery pack 100. In other embodiments, the temperature regulating element 16 may be provided only on the upper cover 15 , or only on the bottom plate 12 .

[0072] As shown in Figures 3, 4, 6, and 7, the thermostat 16 includes a thermostat plate 161 having a flow channel 1611 formed therein. This flow channel 1611 is used to circulate a thermostat medium. When the thermostat medium circulates within the flow channel 1611, it can lower or raise the surface temperature of the upper cover 15 and the bottom plate 12, thereby lowering or raising the temperature within the accommodating cavity 14. Furthermore, the thermostat 16 is plate-shaped, which does not occupy much space in the height direction of the battery case 1, thus helping to ensure that the dimensions of the battery case 1 are within a reasonable range. A connecting tube 162 connects the thermostat connector 52 to the flow channel 1611 of the thermostat 16, allowing the thermostat connector 52 to operate in either a liquid cooling mode or a heating mode, depending on the actual application scenario. The thermostat connector 52 controls the temperature of the thermostat medium within the flow channel 1611, thereby lowering or raising the temperature within the accommodating cavity 14. The thermostat medium can be a liquid, a gas, or other thermostat-adjustable medium.

[0073] In this embodiment, the function of the thermostat 16 is to reduce the temperature of the battery body, and the thermostat medium is liquid. In other embodiments, the function of the thermostat 16 and the type of the thermostat medium can be adjusted according to actual needs and are not limited here.

[0074] As shown in Figures 5 and 6 , the inlet and outlet of the flow channel 1611 are respectively provided with connecting pipes 162, and the temperature control connector 52 is connected to the flow channel 1611 via the connecting pipes 162, so that the external temperature control medium is sequentially passed through the temperature control connector 52 and the connecting pipe 162 into the flow channel 1611 to adjust the temperature of the accommodating chamber 14. The inlet and outlet of the flow channel 1611 are respectively provided with connecting pipes 162, and the two connecting pipes 162 can respectively realize the inflow and outflow of the temperature control medium. In other words, the inflow and outflow of the temperature control medium can be carried out simultaneously, which means that the temperature control medium can be continuously transported into the flow channel 1611 to replace the temperature control medium originally in the flow channel 1611, thereby realizing that the temperature control component 16 continuously adjusts the temperature of the accommodating chamber 14.

[0075] As shown in Figure 4, the temperature control plate 161 includes a plate body 1612 and a protective plate 1613. The plate body 1612 is laid on the upper cover 15 and the bottom plate 12. The plate body 1612 is provided with a flow channel 1611 on the side facing away from the upper cover 15 or the bottom plate 12. The flow channel 1611 is recessed toward the upper cover 15 or the bottom plate 12. The protective plate 1613 covers at least the recessed area on the plate body 1612 to form a closed flow channel 1611. The plate body 1612 and the protective plate 1613 together form a closed flow channel 1611, which helps prevent the temperature control medium from overflowing. At the same time, the use of the separate plate body 1612 and the protective plate 1613 to assemble the temperature control plate 161 helps improve the convenience during manufacturing. If the closed flow channel 1611 is directly opened in the integral temperature control plate 161, the manufacturing difficulty will be high.

[0076] In some embodiments where the temperature regulating element 16 is provided only on the upper cover 15 or only on the bottom plate 12 , the plate body 1612 is only laid on the upper cover 15 or only on the bottom plate 12 .

[0077] Please refer to Figure 8 for understanding. The flow channel 1611 includes a plurality of branches 16111 that are connected in sequence. The branches 16111 are at least opened in the first area of ​​the temperature control plate 161, and the branches 16111 are in the shape of a "J". In other alternative embodiments, the shape of the branches 16111 can also be in the shape of a bow or other similar shapes. With the above-mentioned structural form, the temperature control medium is guaranteed to flow normally in the flow channel 1611 through a plurality of branches 16111 that are connected in sequence. The shape of the branches 16111 is in the shape of a "J", which increases the distribution area of ​​the branches 16111, so that the area of ​​the temperature control medium circulation is wider, and the temperature control efficiency of the temperature control medium on the battery body as a whole in the accommodating cavity 14 is improved.

[0078] In this embodiment, the first area is at least provided on the top and bottom of the battery body. In some embodiments where the temperature regulating member 16 is provided only on the upper cover 15 or only on the bottom plate 12 , the first area is provided only on the upper cover 15 or only on the bottom plate 12 .

[0079] Several embodiments of the branches 16111 are possible: a first embodiment wherein multiple branches 16111 are spaced apart along the length of the temperature regulating plate 161; a second embodiment wherein each branch 16111 extends from one side of the temperature regulating plate 161 to the other side of the temperature regulating plate 161 along the width of the temperature regulating plate 161; and a third embodiment wherein multiple branches 16111 are spaced apart along the length of the temperature regulating plate 161, and each branch 16111 extends from one side of the temperature regulating plate 161 to the other side of the temperature regulating plate 161 along the width of the temperature regulating plate 161. As shown in FIG8 , preferably, multiple branches 16111 are spaced apart along the length of the temperature regulating plate 161, and each branch 16111 extends from one side of the temperature regulating plate 161 to the other side of the temperature regulating plate 161 along the width of the temperature regulating plate 161. This further increases the distribution area of ​​the branches 16111, thereby expanding the area over which the temperature regulating medium circulates and improving the temperature regulating efficiency of the temperature regulating medium on the entire battery body.

[0080] As shown in Figure 6, the inlet and outlet of flow channel 1611 are located on the same side of the temperature control plate 161. Flow channel 1611 can be configured in the following ways: In the first embodiment, flow channel 1611 extends from the inlet around at least the top of the battery body before reaching the outlet; in the second embodiment, flow channel 1611 extends from the inlet around at least the bottom of the battery body before reaching the outlet; in the third embodiment, flow channel 1611 extends from the inlet around at least the top and bottom of the battery body before reaching the outlet. Preferably, flow channel 1611 extends from the inlet around at least the top and bottom of the battery body before reaching the outlet. Specifically, the temperature-control medium flows into flow channel 1611 from the inlet, circulates through flow channel 1611, and then flows out of the outlet. Placing the inlet and outlet on the same side of the temperature control plate 161 increases the flow path of flow channel 1611, thereby increasing the circulation area of ​​the temperature-control medium and improving the temperature-control efficiency of the temperature-control medium on the entire battery body. Furthermore, this structural form facilitates the connection of the temperature-control connector 52 to the flow channel 1611.

[0081] In addition, in a fourth embodiment, multiple branches 16111 are spaced apart along the width of the temperature regulating plate 161; in a fifth embodiment, each branch 16111 extends from one side of the temperature regulating plate 161 to the other side of the temperature regulating plate 161 along the length of the temperature regulating plate 161; and in a sixth embodiment, multiple branches 16111 are spaced apart along the width of the temperature regulating plate 161, and each branch 16111 extends from one side of the temperature regulating plate 161 to the other side of the temperature regulating plate 161 along the length of the temperature regulating plate 161. Preferably, multiple branches 16111 are spaced apart along the width of the temperature regulating plate 161, and each branch 16111 extends from one side of the temperature regulating plate 161 to the other side of the temperature regulating plate 161 along the length of the temperature regulating plate 161, thereby further increasing the distribution area of ​​the branches 16111, thereby expanding the area over which the temperature regulating medium circulates, and improving the temperature regulating efficiency of the temperature regulating medium on the entire battery body.

[0082] Furthermore, the end of the connecting tube 162 near the thermostat connector 52 is a hose, and the end of the connecting tube 162 near the thermostat connector 52 is sleeved on the interface of the thermostat connector 52 through the hose. With the above-mentioned structural form, the end of the connecting tube 162 near the thermostat connector 52 is set as a hose, which facilitates the floating of the thermostat connector 52.

[0083] In this embodiment, the connecting pipe 162 is configured as a hose as a whole. In other embodiments, the connecting pipe 162 can also be configured as a hose only at one end near the temperature regulating connecting pipe 162.

[0084] The following embodiments are possible for the thermostat plate 161: In the first embodiment, a recess is provided on the side of the thermostat plate 161 facing away from the battery body to accommodate the end of the connecting tube 162 near the battery body; in the second embodiment, a recess is provided on the side of the thermostat plate 161 facing the battery body to accommodate the end of the connecting tube 162 near the battery body; in the third embodiment, a recess is provided on both the side of the thermostat plate 161 facing away from and the side facing the battery body to accommodate the end of the connecting tube 162 near the battery body. In this embodiment, a recess is provided on the side of the thermostat plate 161 facing away from the battery body to accommodate the end of the connecting tube 162 near the battery body, and is located near the frame structure 11. This prevents interference between the thermostat plate 161 and the connecting tube 162, and between the connecting tube 162 and the reinforcement 2, ensuring the normal operation of the thermostat plate 161. Furthermore, the provision of the recess can reduce the height dimension of the battery pack 100, thereby improving the compactness of the battery pack 100.

[0085] Thermostatic connector 52 is connected to at least one outer wall of battery case 1. The outer wall on which thermostatic connector 52 is mounted is made of a profile. With this structure, sidewall 20 on which thermostatic connector 52 is mounted is manufactured from profiles, reducing the complexity of the manufacturing process and achieving low cost. Furthermore, profiles provide greater structural strength, increasing the load-bearing capacity of the outer wall on which thermostatic connector 52 is mounted, thereby improving the stability and shock resistance of battery pack 100.

[0086] Furthermore, the temperature control element 16 also includes a circulation channel, which is laid within the flow channel 1611. The temperature control medium circulates within the circulation channel. The use of the circulation channel to accommodate the temperature control medium solves the sealing problem, thereby reducing the sealing requirements between the protective plate 1613 and the plate body 1612. Of course, it is also possible to not provide the flow channel 1611 and directly fix the circulation channel to the temperature control plate 161 and arrange the circulation channel in an "X" shape. In this case, the circulation channel lacks the limiting protection of the flow channel 1611, resulting in a limited service life of the circulation channel. Therefore, in this embodiment, by providing the flow channel 1611 and laying the circulation channel within the flow channel 1611, the service life of the circulation channel is improved.

[0087] In this embodiment, the battery box 1 includes an upper cover 15, a bottom plate 12 and a accommodating cavity 14 for accommodating the functional component 5. The upper cover 15 is provided with an opening 151, which is connected to the accommodating cavity 14. A closing cover 152 is detachably connected to the upper cover 15, and the closing cover 152 is used to close or open the opening 151.

[0088] As shown in Figures 1 and 3, by providing an opening 151 that communicates with the accommodating cavity 14 on the upper cover 15 and / or the bottom plate 12 of the battery case 1, and using a removable closing cover 152 to control the opening and closing of the opening 151, when the functional component 5 in the battery case 1 needs to be repaired or replaced, the closing cover 152 can be removed and the functional component 5 can be repaired or replaced through the opening 151. In this way, the upper cover 15 does not need to be removed, which helps to reduce the workload of the battery pack 100 in the later maintenance and improve the efficiency of the battery pack 100 in the later maintenance. In particular, when the upper cover 15 or the bottom plate 12 is fixed by adhesive fixation, the provision of the opening 151 or the bottom plate 12 can solve the problems of the upper cover 15 being unable to be removed or the poor fixing effect of re-fixing after removal, which helps to ensure the performance integrity of the battery pack 100 after repair.

[0089] In other embodiments, both the upper cover 15 and the bottom plate 12 may have an opening 151, and both the upper cover 15 and the bottom plate 12 may be detachably connected to a closure cover 152, which is used to close or open the opening 151. Of course, only the bottom plate 12 may have an opening 151 and a closure cover 152 that closes or opens the opening 151.

[0090] As shown in FIG3 , the opening 151 includes a first opening 1511 and a second opening 1512. The position of the first opening 1511 corresponds to the position of the electrical connector 51 and the thermostat connector 52, and the position of the second opening 1512 corresponds to the position of the control panel. By providing different openings 151 for different functional parts 5 in a targeted manner, and by having the openings 151 correspond to the positions of the functional parts 5, the convenience of repair and replacement can be improved, further improving maintenance efficiency. Furthermore, compared to a single opening 151 that has a larger size requirement to meet the maintenance requirements of multiple functional parts 5, multiple openings 151 are relatively dispersedly provided on the battery case 1, which is beneficial for ensuring the structural strength of the battery case 1. Preferably, the size of the opening 151 is not less than the size of the functional part 5, thereby improving the convenience of repair or replacement and preventing the situation where the opening 151 is too small and operation is restricted.

[0091] In this embodiment, the battery case 1 also includes a first seal 153 arranged between the closing cover 152 and the upper cover 15. The first seal 153 is used to fill the gap between the closing cover 152 and the upper cover 15, thereby helping to improve the connection sealing between the closing cover 152 and the upper cover 15, preventing external dust or liquid from entering the accommodating cavity 14 from the opening 151, and helping to ensure the safety of the battery pack 100 and improve the service life of the battery pack 100.

[0092] In some embodiments where the bottom plate 12 is provided with an opening 151 and a closing cover 152, the battery case 1 further includes a second sealing member disposed between the closing cover 152 and the bottom plate 12. The second sealing member is used to fill the gap between the closing cover 152 and the bottom plate 12, thereby facilitating improved sealing between the closing cover 152 and the bottom plate 12. The first sealing member 153 and the second sealing member may be rubber seals, plastic seals, metal seals, or other sealing forms.

[0093] Please refer to Figures 10 to 12 for further understanding. The battery case 1 also includes a reinforcement member 2 disposed between the thermostat 16 and the bottom plate 12. One end of the reinforcement member 2 is connected to the bottom plate 12, and the other end of the reinforcement member 2 extends toward the battery body to support the battery body. With the above-described structural form, the reinforcement member 2 is disposed between the thermostat 16 and the bottom plate 12. This reinforces the bottom plate 12, thereby increasing its strength. This reduces the risk of the bottom plate 12 being crushed by the battery body, improves the strength and stability of the bottom plate 12 in supporting the battery body, and further improves the stability and reliability of the battery body placement.

[0094] As shown in Figures 11 and 15, the reinforcement 2 includes a first reinforcement portion 21 and a first support portion 22. The first reinforcement portion 21 is connected to the bottom plate 12, and the first support portion 22 is connected to the first reinforcement portion 21 and extends from the first reinforcement portion 21 toward the battery body. The first support portion 22 is used to support the battery body. With the above-mentioned structural form, the first reinforcement portion 21 is connected to the bottom plate 12, and the first support portion 22 abuts against the battery body. The battery body can be supported by the first reinforcement portion 21 and the first support portion 22, thereby improving the strength and stability of the bottom plate 12 supporting the battery body, and further improving the stability and reliability of the battery body placed in the accommodating cavity 14. Specifically, in this embodiment, the lower surface of the first reinforcement portion 21 is connected to the upper surface of the bottom plate 12, and the first support portion 22 is connected to the upper surface of the first reinforcement portion 21, so that the reinforcement 2 can support the battery body through the first support portion 22.

[0095] In order to improve the structural strength of the reinforcement 2, the first reinforcement portion 21 and the first support portion 22 are preferably formed in one piece. In other embodiments, the first reinforcement portion 21 and the first support portion 22 can also be provided separately, so that if one of the first reinforcement portion 21 and the first support portion 22 is damaged, only the damaged first reinforcement portion 21 and the first support portion 22 need to be replaced for normal use, thereby reducing the cost of use. In order to reduce the weight and cost of use of the reinforcement 2, it is preferred that a first cavity 23 is provided on the reinforcement 2, and the number of the first support portions 22 is multiple, and the multiple first support portions 22 are spaced apart along the extension direction of the first reinforcement portion 21 to form a first cavity 23 between two adjacent first support portions 22.

[0096] In this embodiment, the number of first support portions 22 is greater than four, thereby forming multiple first cavities 23. This ensures the overall structural strength while reducing the weight and cost of the reinforcement 2. In other embodiments, the specific number of first support portions 22 can be adjusted according to actual needs and is not limited here.

[0097] As shown in Figures 11, 12, and 15, the reinforcement member 2 also includes a second reinforcement portion 24 and a second support portion 25. The second reinforcement portion 24 is connected to the first support portion 22. One end of the second support portion 25 is connected to the second reinforcement portion 24, and the other end of the second support portion 25 extends toward the bottom plate 12 for connection to the bottom plate 12. With this structure, the second reinforcement portion 24 and the second support portion 25 further enhance the strength of the bottom plate 12 while also enhancing the strength of the first reinforcement portion 21 and the first support portion 22. This further enhances the strength and stability of the bottom plate 12 supporting the battery body, thereby improving the stability and reliability of the battery body when placed within the accommodating cavity 14. In this embodiment, with respect to the first support portion 22 and the first reinforcement portion 21 located near the frame structure 11, the second reinforcement portion 24 is connected to the connection of the multiple first support portions 22 that is farthest from the frame structure 11. Furthermore, for the first support portion 22 and first reinforcement portion 21 close to the frame structure 11, the second reinforcement portion 24 is connected to the middle of the first support portion 22, thereby reducing the height of the second support portion 25 and improving the stability and reliability of the second support portion 25 supporting the base plate 12. For the first support portion 22 and first reinforcement portion 21 far from the frame structure 11, the second reinforcement portion 24 is connected to the side wall 20 of the first support portion 22 near the top wall, so that the battery body can be supported by the second reinforcement portion 24.

[0098] There are multiple second support portions 25, which are spaced apart along the extension direction of the second reinforcement portion 24 to form a first cavity 23 between two adjacent second support portions 25. This structure reduces the weight and cost of the reinforcement member 2 while ensuring overall structural strength.

[0099] In this embodiment, the number of second support portions 25 is greater than four, thereby forming multiple first cavities 23. This ensures the overall structural strength while reducing the weight and cost of the reinforcement 2. In other embodiments, the specific number of second support portions 25 can be adjusted according to actual needs and is not limited here.

[0100] In addition, in this embodiment, the second reinforcing portion 24 and the second supporting portion 25 are integrally formed. In other embodiments, the second reinforcing portion 24 and the second supporting portion 25 may be provided as separate parts. Thus, if one of the second reinforcing portion 24 and the second supporting portion 25 is damaged, only the damaged second reinforcing portion 24 or the second supporting portion 25 needs to be replaced for normal use, thereby reducing the cost of use.

[0101] As shown in Figures 12 and 13, the reinforcement 2 also includes a third reinforcement portion 26, which is connected to the first support portion 22 near the frame structure 11. The first support portion 22 is connected to the third reinforcement portion 26 at one end near the battery body and to the first reinforcement portion 21 at the other end. With the above-mentioned structural form, the overall strength of the reinforcement 2 near the frame structure 11 is improved by the third reinforcement portion 26, thereby further improving the strength and stability of the bottom plate 12 supporting the battery body, thereby improving the stability and reliability of the battery body placed in the accommodating cavity 14, and at the same time, it can also strengthen the connection between the frame structure 11 and the bottom plate 12, thereby further improving the stability of the battery box. In specific use, the two adjacent first support portions 22 are respectively connected to the first reinforcement portion 21 and the third reinforcement portion 26 to form a closed first cavity 23 between the two adjacent first support portions 22, thereby further improving the structural strength of the reinforcement 2. In order to improve the structural strength of the reinforcement 2, it is preferred that the first reinforcement portion 21, the first support portion 22 and the third reinforcement portion 26 are integrally formed.

[0102] As shown in Figures 12 and 13, reinforcement member 2 also includes a protrusion 27. Protrusion 27 is connected to the side of third reinforcement portion 26 away from first support portion 22 and extends from third reinforcement portion 26 toward the battery body. Protrusion 27 is used to support the battery body. With this structure, reinforcement member 2 supports the battery body through protrusion 27.

[0103] In actual use, there are multiple protrusions 27 , and the multiple protrusions 27 are spaced apart along the extending direction of the third reinforcing portion 26 , thereby improving the stability and reliability of the protrusions 27 in supporting the battery body.

[0104] The battery pack 100 also includes a connector. A third through-hole is defined in at least one first support portion 22, distal from the frame structure 11, and a fourth through-hole is defined in the base plate 12. The third and fourth through-holes are connected by a connector. This structure connects the reinforcement 2, distal from the frame structure 11, to the base plate 12 via the connector. Furthermore, this structure facilitates the connection between the reinforcement 2 and the base plate 12.

[0105] In this embodiment, the number of reinforcement members 2 located away from the frame structure 11 is illustrated as an example. In other embodiments, the number of reinforcement members 2 located away from the frame structure 11 can be adjusted based on actual needs and is not limited here. Furthermore, in this embodiment, the connecting members are bolts. In other embodiments, the connecting members can also be of other types and are not limited here.

[0106] As shown in Figure 12, the battery case 1 further includes a buffer member 17, which is disposed between the temperature regulating member 16 and the bottom plate 12. With this structure, the buffer member 17 can provide a cushion for the battery body, preventing the battery body from being damaged by collision during transportation, thereby further improving the safety and service life of the battery body.

[0107] In this embodiment, the buffer member 17 is a buffer foam. In other embodiments, the type of the buffer member 17 can be adjusted according to actual needs and is not limited here.

[0108] One side of the thermostat 16 is connected to the reinforcement 2 and the end of the buffer 17 away from the base plate 12, and the other side is connected to the battery body. With this structure, the thermostat 16 is positioned on the side of the buffer 17 and reinforcement 2 that is closer to the battery body, improving the efficiency of the thermostat 16 in changing the battery body's temperature. In this embodiment, the thermostat 16 is in direct contact with the battery body, further enhancing its efficiency in changing the battery body's temperature.

[0109] As shown in Figures 12 and 13, the first surface of the base plate 12, near the battery body, has a groove for accommodating the reinforcement 2. This structure facilitates the placement of the reinforcement 2. Specifically, the base plate 12 is connected to the frame structure 11 on all four sides via bolts, while the upper surface of the base plate 12, away from the surrounding area, has a groove.

[0110] In this embodiment, the groove is formed by stamping the bottom plate 12, thereby improving the strength of the bottom plate 12. In other embodiments, the processing method of the groove can be adjusted according to actual needs and is not limited here.

[0111] In a specific embodiment, as shown in Figures 12 and 14, the lower plate structure of the battery case 1 includes: a bottom plate 12 at the bottom layer, a buffer member 17 and a reinforcement member 2 at the middle layer, and a thermostat 16 at the top layer. The bottom side of the thermostat 16 is connected to the reinforcement member 2 and the end of the buffer member 17 away from the bottom plate 12, respectively, and the top side of the thermostat 16 is connected to the battery body. The reinforcement member 2 is laid on the bottom plate 12 at a position corresponding to the frame structure 11 and the fixing member 4, and extends away from the frame structure 11 and the fixing member 4. The buffer member 17 is laid between adjacent reinforcement members 2 on the bottom plate 12.

[0112] As shown in Figures 1, 10, 12, and 14, the battery case 1 also includes a front beam 18, a rear beam 19, and two side walls 20. The front beam 18 and rear beam 19 are respectively connected to the front and rear ends of the two side walls 20, so that the front beam 18, rear beam 19, and the two side walls 20 form a frame structure 11. The front beam 18, rear beam 19, and the two side walls 20 all have a second cavity 1811 inside. With this structural form, the frame structure 11 can protect the battery body, effectively preventing external impurities from entering the battery pack and causing damage to the battery body, ensuring the safety and stability of the battery body, and thereby increasing the service life of the battery body. In addition, the front beam 18, rear beam 19, and the two side walls 20 all have a second cavity 1811 inside, which reduces the material used while ensuring that the overall structural strength of the battery pack 100 meets the requirements, thereby achieving the effect of reducing the weight of the battery pack 100. At the same time, the front beam 18, the rear beam 19 and the two side walls 20 form a frame structure 11, thereby reinforcing the battery box 1 and improving stability.

[0113] As shown in Figure 18, the top surface of the frame structure 11 is provided with a sealing groove 6 for accommodating sealant. The sealing groove 6 is arranged around the frame structure 11, and the upper cover 15 is bonded to the top surface of the frame structure 11 by the sealant. The top surface of the frame structure 11 is provided with a circle of sealing grooves 6. The sealant is arranged in the sealing grooves 6, so that the upper cover 15 is bonded to the top surface of the frame structure 11 by the sealant. The sealant is used to achieve a sealed connection between the upper cover 15 and the frame structure 11, and the sealing effect is good. At the same time, the sealing groove 6 effectively prevents the overflow of the sealant, and the stability is higher. Optionally, the top surface of the frame structure 11 has multiple sealing grooves 6 for accommodating sealant, and multiple sealing grooves 6 are arranged around the frame structure 11. Alternatively, the top surface of the frame structure 11 has a single sealing groove 6 for accommodating sealant, and the sealing groove 6 is arranged around the frame structure 11. For example, the sealing groove 6 is a round sealing groove, and the round sealing groove is arranged around the frame structure 11. As shown in Figures 1 and 2, the battery pack 100 also includes an electrical connector 51 and at least one pressure relief valve 53. Both the electrical connector 51 and the thermostatic connector 52 are connected to the front beam 18, while the at least one pressure relief valve 53 is connected to the front beam 18 and / or the rear beam 19. The electrical connector 51 and the thermostatic connector 52 are both connected to the front beam 18. As the battery pack 100 moves along its length, the electrical connector 51 and the thermostatic connector 52 connect or disconnect with the vehicle-end electrical connector 51 and vehicle-end thermostatic connector 52, respectively, on the electric vehicle. When connected, the battery pack 100 provides power to the electric vehicle and changes the temperature within the battery pack 100. This simultaneous connection and disconnection ensures more stable and reliable connection between the electrical connector 51 and the thermostatic connector 52, respectively, on the electric vehicle, effectively avoiding unstable connections and making the overall structure of the battery pack 100 more compact. At the same time, by installing a pressure relief device on the front beam 18 and / or the rear beam 19, the front end and / or the rear end of the battery pack 100 are relieved, which effectively prevents excessive pressure inside the battery pack 100 and improves safety and stability.

[0114] In this embodiment, there are four pressure relief valves 53 , two of which are located on the front beam 18 and the rear beam 19 , respectively, and every two pressure relief valves 53 are distributed at both ends of the front beam 18 and the rear beam 19 , further improving the safety and stability of the battery pack 100 .

[0115] As shown in Figures 1 and 9, the battery case 1 also includes a mounting base 3. A mounting opening 181 is defined on the outer wall of the battery case 1 for mounting the thermostatic connector 52. The mounting base 3 is inserted into the mounting opening 181 and connected to the outer wall. The thermostatic connector 52 is then connected to the mounting base 3. By inserting the mounting base 3 into the mounting opening 181 and connecting it to the frame structure 11, and mounting the thermostatic connector 52 via the mounting base 3, the thermostatic connector 52 is securely mounted to the frame structure 11, ensuring the required mounting strength of the thermostatic connector 52. This effectively improves the overall structural connection stability of the battery pack 100 and its seismic resistance.

[0116] As shown in FIG19 , the mounting base 3 includes a support portion 31 and a connecting portion 32. One end of the support portion 31 is connected to the outer edge of the connecting portion 32, and the other end of the support portion 31 extends outward along the plate surface of the mounting base 3. The support portion 31 is supported against the side of the front beam 18 and / or rear beam 19 facing away from the battery body. The connecting portion 32 is inserted into the second cavity 1811 and connected to the outer wall of the second cavity 1811 near the battery body. The mounting base 3 is inserted into the mounting opening 181 from the outside of the battery pack 100 along the length of the battery pack 100. The support portion 31 is supported against the side of the front beam 18 and / or rear beam 19 facing away from the battery body, so that the mounting base 3 and the frame structure 11 are in contact with each other, and the mounting base 3 cannot slide into the battery pack 100 anymore, indicating that the mounting base 3 is installed in place, thereby achieving precise positioning of the mounting base 3. At the same time, after the connecting portion 32 is embedded in the second cavity 1811 and connected to the outer wall of the second cavity 1811 near the battery body, the mounting base 3 is securely connected to the frame structure 11. The installation connection is very convenient and can ensure the installation stability of the mounting base 3. Among them, the end of the connecting portion 32 away from the abutting portion 31 is connected to the frame structure 11. The abutting portion 31 can also be connected to the frame structure 11, effectively strengthening the structural connection strength.

[0117] Please refer to Figure 18 for understanding. The middle area of ​​the mounting base 3 has a through hole 33 for communicating with the interior of the battery case 1. The mounting base 3 is provided with a plurality of connection holes 34, which are distributed on the outer edge of the through hole 33. The thermostat connector 52 is detachably connected to the plurality of connection holes 34 on the mounting base 3 and is connected to the battery body after passing through the through hole 33. The thermostat connector 52 passes through the through hole 33 from the outside of the battery pack 100 and extends into the battery pack 100. The through hole 33 allows the thermostat connector 52 to easily pass through the battery case 1 and connect to the battery body. The thermostat connector 52 passes through the through hole 33 and connects to the plurality of connection holes 34, which are distributed on the outer edge of the through hole 33, thereby fixing the thermostat connector 52 on all sides, and the installation and connection are stable and reliable. At the same time, installation and disassembly are very convenient through the plurality of connection holes 34, and the structure is simple and very convenient to process and manufacture.

[0118] As shown in Figures 16 and 17, the battery case 1 also includes a maintenance compartment 201. The rear beam 19 is provided with a maintenance opening 191. The maintenance compartment 201 is detachably connected to the rear beam 19 and is used to seal and cover the maintenance opening 191. When maintenance is required on the battery pack 100, the maintenance compartment 201 can be removed from the rear beam 19, and the interior of the battery pack 100 can be maintained through the maintenance opening 191, making maintenance and inspection convenient. After maintenance and inspection, the maintenance compartment 201 is installed and connected to the rear beam 19, thereby sealing and covering the maintenance opening 191. This provides high safety and stability, a simple structure, and easy processing and manufacturing.

[0119] The battery case 1 also includes a fixing member 4, which is located within the frame structure 11 and connected to the front beam 18, the rear beam 19, and the two side walls 20. This structure effectively strengthens the structural strength of the battery case 1 through the fixing member 4, effectively preventing deformation of the battery pack 100, improving seismic resistance, and significantly enhancing the safety and stability of the battery pack 100.

[0120] As shown in Figure 9, the fixing member 4 comprises interlaced transverse ribs 41 and longitudinal ribs 42, characterized by a simple structure, easy processing, and reduced cost. In this embodiment, there is one longitudinal rib 42 and two transverse ribs 41. The longitudinal rib 42 is connected to one of the transverse ribs 41 in a cross-like formation, while the other transverse rib 41 is connected to one end of the longitudinal rib 42, further enhancing the structural strength and stability of the fixing member 4. Furthermore, in this embodiment, the reinforcement members 2 are provided on the base plate 12 at locations corresponding to the front beam 18 and rear beam 19, as well as to the transverse ribs 41 in the fixing member 4. Specifically, for the reinforcement 2 provided at the corresponding positions of the front beam 18 and the rear beam 19 on the bottom plate 12, the reinforcement 2 is connected to the front beam 18 and the rear beam 19, so that the connection positions of the bottom plate 12 and the front beam 18 and the rear beam 19 can be reinforced by the reinforcement 2; for the reinforcement 2 provided at the corresponding positions of the transverse rib 41 in the fixing part 4 on the bottom plate 12, the reinforcement 2 can cover the transverse rib 41 in the projection in the height direction of the battery pack 100, so that the connection positions of the transverse rib 41 and the side wall 20 can be reinforced by the reinforcement 2, thereby improving the structural strength of the battery box body.

[0121] In order to reduce the weight and use cost of the fixing member 4 , it is preferred that the fixing member 4 has a third cavity inside.

[0122] The location of the reinforcement 2 can be arranged in the following embodiments. In the first embodiment, the reinforcement 2 is arranged at a corresponding position of the frame structure 11 on the bottom plate 12; in the second embodiment, the reinforcement 2 is arranged at a corresponding position of the fixing member 4 on the bottom plate 12; in the third embodiment, the reinforcement 2 is arranged at a corresponding position of the frame structure 11 on the bottom plate 12. Specifically, the reinforcement 2 can be arranged at a corresponding position of the transverse rib 42 on the bottom plate 12. As shown in Figures 10 and 11, preferably, the reinforcement 2 can be arranged at a corresponding position of the transverse rib 42 on the bottom plate 12 and extend in a direction away from the frame structure 11 and the fixing member 4. With the above-mentioned structural form, multiple reinforcements 2 are arranged at intervals along the extension direction of the bottom plate 12, further improving the strength of the bottom plate 12, thereby improving the strength and stability of the bottom plate 12 supporting the battery body, and further improving the stability and reliability of the battery body placed in the accommodating cavity 14. In addition, the connection between the bottom plate 12 and the frame structure 11 and the corresponding position of the fixing member 4 are strengthened by the reinforcement 2, thereby improving the structural strength of the battery box body.

[0123] As shown in Figures 17 and 18, the battery pack 100 includes multiple locking connection structures 7. Sidewall brackets 2011 are provided on the sidewalls 20. Both sidewall brackets 2011 include a bracket body 20111. Multiple reinforcing ribs 201111 are provided on the outer side of the bracket body 20111, facing away from the battery body. The ribs 201111 are spaced apart along the length, and the locking connection structures 7 are disposed between the ribs 201111. Connecting the two sidewall brackets 2011 to opposite sides of the battery body along its length increases the contact area between the two sidewall brackets 2011 and the battery body, effectively strengthening the connection strength between the battery body and the two sidewall brackets 2011. By providing multiple outwardly protruding reinforcing ribs 201111 on the outer side of the bracket body 20111, facing away from the battery body, and positioning the lock connection structure 7 between the reinforcing ribs 201111, the connection strength between the multiple lock connection structures 7 and the sidewall bracket 2011 is effectively strengthened, meeting the support strength requirements of the battery pack 100 and ensuring locking accuracy. Furthermore, the multiple reinforcing ribs 201111 are spaced apart along the length of the bracket body 20111, reducing the weight of the sidewall bracket 2011 while meeting the load-bearing strength requirements of the sidewall bracket 2011, reducing material consumption, and thus achieving the effect of reducing the weight of the battery pack 100. This achieves the simultaneous effect of reducing the weight of the battery pack 100 and improving the support strength of the sidewall bracket 2011. Furthermore, the manufacturing process is simple and cost-effective.

[0124] Please refer to Figure 20 for further understanding. The side wall bracket 2011 also includes a thickened portion 202, which is disposed within the bracket body 20111 and corresponds to the reinforcement ribs 201111 on the outside of the bracket body 20111. By disposing the thickened portion 202 within the bracket body 20111 and corresponding to the reinforcement ribs 201111 on the outside of the bracket body 20111, the thickened portion 202 and the reinforcement ribs 201111 can strengthen the inner and outer sides of the bracket body 20111, making the structure of the bracket body 20111 more stable and reliable, thereby meeting the support strength requirements of the battery pack 100. At the same time, the thickened portion 202 is disposed within the bracket body 20111, without occupying additional space, and achieving a more compact structure.

[0125] As shown in FIG20 , the bracket body 20111 has multiple weight-reducing cavities 203 within it. The thickened portion 202 is disposed within the weight-reducing cavities 203 and connected to the inner wall of the bracket body 20111 near the reinforcing rib 201111. The locking connection structure 7 passes through the side wall 20 of the bracket body 20111 and connects to the thickened portion 202. The multiple weight-reducing cavities 203 within the bracket body 20111 have a weight-reducing effect, effectively reducing the overall weight of the sidewall bracket 2011. This reduces the overall weight of the battery pack 100 and reduces material usage while ensuring that the overall structural strength of the battery pack 100 meets requirements. Furthermore, compared to using only a single, larger weight-reducing cavity 203, using multiple weight-reducing cavities 203 can enhance the support strength of the sidewall bracket 2011 by utilizing the connection structure therebetween, further strengthening the structural strength of the sidewall bracket 2011. At the same time, by setting the thickened portion 202 in the weight-reducing cavity 203, the connection of the lock connection structure 7 is ensured to be more stable and reliable, and no additional space is occupied; the thickened portion 202 is connected to the inner wall of the bracket body 20111 close to the reinforcing rib 201111, and the connection structure between the thickened portion 202 and the bracket body 20111 can be used to enhance the load-bearing strength of the side wall bracket 2011, so that when the lock connection structure 7 passes through the side wall of the bracket body 20111 and is connected to the thickened portion 202, the connection of the lock connection structure 7 can be ensured to be more stable and reliable.

[0126] As shown in Figure 21, the bracket body 20111 includes a housing 204, at least one transverse partition 205, at least one longitudinal partition 206, and at least one inclined partition 207. The battery body and the lock connection structure 7 are respectively connected to either side of the housing 204. The transverse partition 205, longitudinal partition 206, and inclined partition 207 are all connected to the housing 204 and divide the space within the housing 204 into multiple weight-reducing cavities 203. The transverse partition 205, longitudinal partition 206, and inclined partition 207 are all connected to the housing 204 and interconnected to divide the larger space within the housing 204 into multiple weight-reducing cavities 203. The distributed arrangement of the transverse partition 205, longitudinal partition 206, and inclined partition 207 significantly enhances the structural strength of the bracket body 20111, thereby improving the safety, stability, and seismic performance of the battery pack 100. The housing 204, at least one transverse partition 205, at least one longitudinal partition 206, and at least one inclined partition 207 are integrally formed. The number and specific distribution positions of the transverse partitions 205, longitudinal partitions 206, and inclined partitions 207 are not limited and can be installed and arranged according to strength requirements. In this embodiment, the thickened portion 202 is arranged in the shell 204, and the thickened portion 202 and the plurality of reinforcing ribs 201111 are distributed and arranged correspondingly on the inner and outer sides of the shell 204. The thickened portion 202 and the bracket body 20111 are integrally formed, which makes processing and manufacturing very convenient and the structural strength high. Of course, in other embodiments, the thickened portion 202 and the bracket body 20111 can also be a split structure, and the thickened portion 202 can be inserted into the weight-reducing cavity 203 of the bracket body 20111 when in use.

[0127] As shown in Figure 20, the outer side of the bracket body 20111 facing away from the battery body has a first weight-reducing groove 208 that is recessed inward. The first weight-reducing groove 208 is arranged between two adjacent reinforcing ribs 201111. One end of the lock connection structure 7 extends into the first weight-reducing groove 208 and is connected to the bracket body 20111. The other end of the lock connection structure 7 is exposed on the outer wall surface of the bracket body 20111 and is used for locking connection with the locking mechanism on the quick-change bracket. The outer side of the bracket body 20111, facing away from the battery body, has multiple outwardly protruding reinforcement ribs 201111 and an inwardly recessed first weight-reducing groove 208. The first weight-reducing groove 208 is located between two adjacent reinforcement ribs 201111. Specifically, the first weight-reducing groove 208 is recessed inward from the protruding surfaces 27 of the two adjacent reinforcement ribs 201111, forming a horizontal bottom. The locking connection structure 7 extends into the first weight-reducing groove 208 to reduce the gap between the sidewall bracket 2011 and the quick-change bracket. This also provides a large contact area between the locking connection structure 7 and the outer side of the bracket body 20111, ensuring high installation stability. This meets the support strength requirements of the battery pack 100 and ensures locking accuracy. Furthermore, the first weight-reducing groove 208 reduces the overall weight of the battery pack 100 and reduces material consumption. The first weight-reducing groove 208 is simple in structure and easy to manufacture.

[0128] Referring to FIG. 21 , the reinforcing ribs 201111 include upper and lower reinforcing ribs 2011111 and 2011112. These ribs are spaced apart and connected to the bracket body 20111 along the height of the battery body, forming a second weight-reducing groove 209 between the upper and lower reinforcing ribs 2011111 and 2011112. The second weight-reducing groove 209 is formed between the upper and lower reinforcing ribs 201111 and 2011112. This second weight-reducing groove 209 further reduces the overall weight of the sidewall bracket 2011, thereby reducing the overall weight of the battery pack 100 and reducing material consumption while ensuring the overall structural strength of the battery pack 100 meets requirements. Furthermore, the second weight-reducing groove 209 is simple in structure and easy to manufacture.

[0129] As shown in FIG20 , the lock connection structure 7 includes a lock mounting seat 71, a lock shaft 72, and a support shaft 73. The lock shaft 72 and the support shaft 73 are respectively disposed on opposite sides of the lock mounting seat 71. The lock mounting seat 71 is mounted on the bracket body 20111. The lock shaft 72 is connected to the outer side of the lock mounting seat 71 facing away from the battery body and is used to lock with the locking mechanism on the quick-change bracket. The support shaft 73 is connected to the inner side of the lock mounting seat 71 facing the battery body. The support shaft 73 passes through the side wall 20 of the bracket body 20111 and is embedded in the thickened portion 202. The lock connection structure 7 is inserted into the thickened portion 202 via the support shaft 73. Precise positioning is achieved by the support shaft 73, ensuring installation accuracy, further improving the installation connection strength, and facilitating installation. The two sides of the lock mounting seat 71 act on the locking mechanism and the side wall bracket 2011 respectively through the lock shaft 72 and the support shaft 73, forming a bilateral force, so that the support shaft 73 can share the shear force exerted on the lock shaft 72 during actual work, thereby increasing the fixing strength of the lock connection structure 7, thereby greatly improving the stability of the lock connection structure 7 and extending the service life of the lock connection structure 7; at the same time, it effectively avoids the displacement of the lock connection structure 7 and further ensures the locking accuracy.

[0130] As shown in Figure 20, the battery pack 100 also includes a guide and positioning mechanism 8. The guide and positioning mechanism 8 is disposed on the outer side of the bracket body 20111, facing away from the battery body, and is connected to the reinforcing rib 201111. The guide and positioning mechanism 8 serves as a guide during the installation of the battery pack 100, precisely aligning the battery pack 100 with the quick-change bracket on the bottom of the electric vehicle. This ensures more precise installation of the battery pack 100. After installation, the battery pack 100 abuts against the mounting surface of the locking mechanism of the quick-change bracket on the electric vehicle to prevent the locking shaft 72 from falling out from the side, ensuring stable and reliable locking. Furthermore, the guide and positioning mechanism 8 exerts a certain force on the vehicle body from both sides of the battery pack 100 in the width direction, effectively reducing wear between the battery pack 100 and the vehicle body and extending the service life of the battery pack 100. Furthermore, the guide and positioning mechanism 8 is connected to the high-strength reinforcing rib 201111, achieving a more stable and reliable connection.

[0131] As shown in Figure 21, the guide and positioning mechanism 8 includes a positioning block 81 and multiple fastening components 82. The bracket body 20111 and the reinforcement ribs 201111 are correspondingly provided with multiple first through-holes 211, and the thickened portion 202 is provided with multiple first connection holes 2021. The fastening components 82 pass through the first through-holes 211 and connect to the first connection holes 2021. The fastening components 82 pass through the first through-holes 211 in the bracket body 20111 and the reinforcement ribs 201111, and connect to the first connection holes 2021 in the thickened portion 202. This ensures that the guide and positioning mechanism 8 is installed and connected to the bracket body 20111, the reinforcement ribs 201111, and the thickened portion 202, further ensuring a more stable and reliable connection, significantly improving the safety and stability of the battery pack 100. Furthermore, the structure is simple, making installation very convenient. Specifically, there are four fastening components 82 , which are respectively installed and connected at the four corners of the positioning block 81 ; the upper two fastening components 82 are connected to the upper reinforcing rib 2011111 , and the lower two fastening components 82 are connected to the lower reinforcing rib 2011112 .

[0132] In the prior art, the sidewall bracket 2011 is mounted and connected to the quick-change bracket via the lock connection structure 7, resulting in a large gap between the sidewall bracket and the quick-change bracket. Impurities such as sand, gravel, and water can easily enter the gap and contact the lock connection structure 7, causing wear on the lock connection structure 7 and affecting locking accuracy. Therefore, the present application also provides at least one of the following embodiments to at least address the above-mentioned issues.

[0133] As shown in Figure 20, the sidewall bracket 2011 also includes a protective plate 2011113. One end of the protective plate 2011113 is connected to the outer side of the bracket body 20111, facing away from the battery body, and the other end of the protective plate 2011113 extends horizontally outward. The battery pack 100 is mounted within the quick-change bracket at the bottom of the electric vehicle, with a gap between the battery pack 100 and the quick-change bracket. The protective plate 2011113 is connected to the outer side of the bracket body 20111, facing away from the battery body, and extends outward. The protective plate 2011113 provides a protective shielding function, effectively preventing impurities from entering the gap between the battery pack 100 and the quick-change bracket, significantly improving the safety and stability of the electric vehicle.

[0134] The outwardly extending width of the protective plate 2011113 is smaller than the thickness of the guide positioning mechanism 8. The guide positioning mechanism 8 is located within the quick-change bracket and exerts force on the inner wall surface of the quick-change bracket to achieve precise positioning. By making the outwardly extending width of the protective plate 2011113 smaller than the thickness of the guide positioning mechanism 8, the protective plate 2011113 and the inner wall surface of the quick-change bracket will not contact or interfere with each other.

[0135] The protective plate 2011113 is connected to the bottom of the bracket body 20111 and is located below the lock connection structure 7. The protective plate 2011113 below the lock connection structure 7 can effectively prevent impurities from entering the gap between the bracket body 20111 and the quick-change bracket and affecting the locking accuracy of the lock connection structure 7, thereby helping to extend the service life of the lock connection structure 7.

[0136] As shown in FIG21 , the protective plate 2011113 is provided with a notch 20111131 for the unlocking member to pass through. The locking link on the quick-change bracket is connected to multiple lock bases and is used to lock the lock shafts 72 on the battery pack 100 within the lock slots of the lock bases. The notch 20111131 in the protective plate 2011113 allows the unlocking member to pass through the notch 20111131 and penetrate above the protective plate 2011113, exerting force on the locking link. This unlocks the multiple lock shafts 72, allowing them to be removed from the lock slots of the lock base, thereby enabling removal and replacement of the battery pack 100. The notch 20111131 effectively prevents interference with the protective plate 2011113, ensuring smooth unlocking and enabling the normal battery replacement operation of the electric vehicle.

[0137] This embodiment further provides an electric vehicle, which includes the battery pack 100 described above. By applying the battery pack 100 to the electric vehicle, the battery body can be disposed within the accommodating cavity 14. The accommodating cavity 14 can protect the battery body, thereby increasing the service life of the battery body. Furthermore, the above-described form allows the battery pack 100 to be assembled into an integral module, facilitating subsequent installation of the battery pack 100 in a modular form. Furthermore, with the above-described structural form, the thermostat 16 is used to regulate the temperature within the accommodating cavity 14. Thus, the temperature of the battery body can be changed by the thermostat 16, so that the temperature of the battery body can be maintained within a normal range, thereby improving the safety and service life of the battery body and increasing the versatility of the battery pack 100.

[0138] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A battery pack, characterized in that, The battery pack includes a battery body and a battery box body. The battery box body includes an upper cover, a bottom plate, and a receiving cavity for receiving the battery body. The upper cover and the bottom plate are respectively disposed at the top and bottom of the receiving cavity. A temperature regulating member is provided on the upper cover and / or the bottom plate, and the temperature regulating member is used to regulate the temperature in the receiving cavity.

2. The battery pack according to claim 1, characterized in that, The temperature regulating member includes a temperature regulating plate, and a flow channel is formed on the temperature regulating plate. The flow channel is used for flowing a temperature regulating medium. A connecting pipe is respectively provided at the inlet and outlet of the flow channel. The battery pack further includes a temperature regulating connector, and the temperature regulating connector is communicated with the flow channel through the connecting pipe.

3. The battery pack according to claim 2, wherein The temperature regulating plate includes a plate body and a protection plate. The plate body is laid on the upper cover and / or the bottom plate. The flow channel is provided on a side of the plate body facing away from the upper cover or the bottom plate, and the flow channel is recessed in a direction close to the upper cover or the bottom plate. The protection plate covers at least the recessed area on the plate body to form the closed flow channel. And / or, the flow channel includes a plurality of branches connected in sequence. The branches are at least provided in a first area of the temperature regulating plate, and the shape of the branches is in a shape of a "J". Preferably, the plurality of branches are arranged at intervals along the length direction of the temperature regulating plate. And / or, each branch extends from one side of the temperature regulating plate to the other side along the width direction of the temperature regulating plate. And / or, the inlet and outlet of the flow channel are located on the same side of the temperature regulating plate, and the flow channel is arranged to surround at least the top and / or bottom of the battery body from the inlet and then reach the outlet.

4. The battery pack according to claim 2 or 3, characterized in that, One end of the connecting pipe close to the temperature regulating connector is a flexible pipe. One end of the connecting pipe close to the temperature regulating connector is sleeved on the interface of the temperature regulating connector through the flexible pipe. And / or, a recess is provided on a side of the temperature regulating plate facing away from and / or facing the battery body. The recess is used for accommodating one end of the connecting pipe close to the battery body. And / or, the temperature regulating connector is connected to at least one outer wall of the battery box body, and the material of the outer wall for installing the temperature regulating connector is a profile. And / or, the temperature regulating member further includes a circulation pipe, and the circulation pipe is laid in the flow channel, and the temperature regulating medium circulates in the circulation pipe. Preferably, the battery box body further includes a mounting seat. A mounting opening is formed on the outer wall for installing the temperature regulating connector. The mounting seat is embedded into the mounting opening and connected to the outer wall, and the temperature regulating connector is connected to the mounting seat. More preferably, a through hole for communicating with the inside of the battery box body is provided in a middle area of the mounting seat. A plurality of connecting holes are formed on the mounting seat, and the plurality of connecting holes are distributed on the outer edge of the through hole. The temperature regulating connector is detachably connected to the plurality of connecting holes on the mounting seat and is connected to the battery body after passing through the through hole.

5. The battery pack according to any one of claims 1-4, characterized in that, The battery box body further includes a reinforcing member disposed between the temperature regulating member and the bottom plate. One end of the reinforcing member is connected to the bottom plate, and the other end of the reinforcing member extends in a direction close to the battery body for supporting the battery body. And / or, the battery box body further includes a buffer member disposed between the temperature regulating member and the bottom plate.

6. The battery pack according to any one of claims 1-5, characterized in that, The outer wall of the battery box body includes a front beam, a rear beam and two side walls. The front beam and the rear beam are respectively connected to the front and rear ends of the two side walls, so that the front beam, the rear beam and the side walls enclose a frame structure. The upper cover and the bottom plate are respectively disposed on the top surface and the bottom surface of the frame structure to form the accommodating cavity; the inside of the front beam and / or the rear beam has a cavity.

7. The battery pack according to claim 6, wherein, The battery box body further includes a fixing member located inside the frame structure, and the fixing member is connected to the front beam, the rear beam and the two side walls. Preferably, the battery box body further includes a reinforcing member disposed at a corresponding position of the frame structure and / or the fixing member on the bottom plate and extending away from the frame structure and / or the fixing member.

8. The battery pack according to claim 6 or 7, characterized in that, The battery pack further includes a plurality of lock connection structures; a side wall bracket is provided on the side wall, and the side wall bracket includes a bracket body; a plurality of reinforcing ribs are provided on the outer side of the bracket body facing away from the battery body, and the plurality of reinforcing ribs are spaced along the length direction of the battery pack, and the lock connection structures are disposed between the reinforcing ribs.

9. The battery pack according to claim 8, wherein, The side wall bracket further includes a thickened portion disposed inside the bracket body and corresponding to the reinforcing ribs on the outer side of the bracket body; and / or, the outer side of the bracket body facing away from the battery body has a first weight-reducing groove recessed inward, and the first weight-reducing groove is disposed between two adjacent reinforcing ribs. One end of the lock connection structure extends into the first weight-reducing groove and is connected to the bracket body, and the other end of the lock connection structure is exposed on the outer wall surface of the bracket body and is used for locking connection with a locking mechanism on the quick-change bracket; and / or, the side wall bracket further includes a protective plate, one end of the protective plate is connected to the outer side of the bracket body facing away from the battery body, and the other end of the protective plate extends outward in the horizontal direction. Preferably, a plurality of weight-reducing cavities are provided inside the bracket body, the thickened portion is disposed inside the weight-reducing cavity and is connected to the inner wall of the bracket body close to the reinforcing rib, and the lock connection structure passes through the side wall of the bracket body and is connected inside the thickened portion.

10. An electric vehicle, characterized in that, The electric vehicle includes the battery pack according to any one of claims 1-9.

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