Battery pack assembly and vehicle

Abstract

The utility model discloses a battery pack assembly and a vehicle, the battery pack assembly comprises a sealing basin body, a main beam body, a movable beam body and a locking device, and a battery cell accommodating cavity is formed in the sealing basin body; the main beam body is arranged in the battery cell accommodating cavity and extends in a first direction; the movable beam body extends in the second direction and is movably arranged on the main beam body, and a contact surface suitable for abutting against the battery cell is formed on the movable beam body; and the locking device is arranged on the movable beam body and is suitable for locking the movable beam body and the fixed beam body. According to the battery pack assembly disclosed by the utility model, proper pressure can be provided for the battery cell by adjusting the position of the movable beam body, so that the expansion of the battery cell in the use process is effectively controlled, the performance of the battery pack assembly is improved, the operation is simple and convenient, the cost is low, and meanwhile, after the movable beam body is moved to a proper position, the locking device is arranged. And the locking device can lock the movable beam body and the main beam body, so that the movable beam body can continuously provide pressure for the battery cell.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a battery pack assembly and a vehicle. Background Art

[0002] In the existing CTP (Cell to Pack) integration technology, the assembly and fixation of battery cells usually involves a series of complex process flows. Among them, a common practice is to apply glue to the bottom of the box, and then apply clamping force to the stacked square shell battery cells. The group of battery cells is compressed and loaded into the box. In order to ensure that the gap between the group of battery cells and the longitudinal and transverse beams of the box is effectively filled, buffer pads are usually used between the battery cells to fill the gap.

[0003] The pressure on the battery module after entering the box is directly related to the spacing between the horizontal and vertical beams of the box. If the spacing between the horizontal and vertical beams cannot be effectively controlled, then while providing pressure to the battery cell, it may not be able to accommodate the expansion of the battery cell during use, resulting in a decrease in battery cell performance and even safety issues. Secondly, in order to meet the above-mentioned assembly requirements, the manufacturing process of the power battery box is often very demanding, resulting in a significant increase in the cost of the power battery pack.

[0004] Publication No. CN219371227U proposes a sliding CTP battery pack device, which includes a box, a support plate and an extrusion plate; the battery cells are arranged in a plurality and arranged in a matrix on the support plate; both ends of the battery cells are provided with extrusion plates adapted thereto, one end of the extrusion plate is connected to the support plate, and the other end is pressed against the battery cell; the box is provided with a slide extending along a first direction, and the support plate is provided with a slide groove adapted to the slide, and the slide is embedded in the slide groove so that the support plate can slide along the slide. The above scheme proposes a method of adjusting the clamping force of the battery cell by the slide, but it is necessary to configure a complex slide groove device inside the battery pack, which greatly reduces the integration efficiency. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a battery pack assembly. According to the battery pack assembly of the utility model, by adjusting the position of the movable beam body, appropriate pressure can be provided for the battery cell, thereby effectively controlling the expansion of the battery cell during use, improving the performance of the battery pack assembly, and being easy to operate and low in cost. At the same time, by providing a locking device, after the movable beam body is moved to a suitable position, the locking device can lock the movable beam body with the main beam body, so that the movable beam body can continuously provide pressure for the battery cell.

[0006] The utility model also provides a vehicle having the battery pack assembly.

[0007] According to the utility model, the battery pack assembly includes: a sealed basin body, in which a battery cell accommodating cavity is formed; a main beam body, which is arranged in the battery cell accommodating cavity and extends in a first direction; a movable beam body, which extends along a second direction and is movably arranged on the main beam body, and a contact surface suitable for stopping with the battery cell is formed on the movable beam body; and a locking device, which is arranged on the movable beam body and is suitable for locking the movable beam body and the main beam body.

[0008] According to the battery pack assembly of the utility model, a sealed basin is provided, and a battery cell accommodating cavity is formed in the sealed basin. The battery cell can be arranged in the battery cell accommodating cavity, and the battery cell is isolated from the external environment, providing a stable operating environment for the battery cell, and ensuring the stability and safety of the battery cell. By arranging a main beam body and a movable beam body in the battery accommodating cavity, the main beam body extends in a first direction, and the movable beam body extends in a second direction, the main beam body and the movable beam body can contact the battery cell in the battery accommodating cavity, so that the battery cell can be effectively supported and fixed in the accommodating cavity. By movably arranging the movable beam body to the main beam body, the contact surface can be closely fitted with the battery cell by adjusting the position of the movable beam body, providing appropriate pressure for the battery cell, and effectively controlling the expansion of the battery cell during use, thereby improving the performance of the battery pack assembly. By providing a locking device, after the movable beam is moved to a suitable position, the movable beam can be locked with the main beam through the locking device. The movable beam will continuously provide stable pressure to the battery cells in the battery cell accommodating cavity through the contact surface, so that the battery cells are more firmly fixed in the battery cell accommodating cavity, so that the battery cells maintain a stable operating state, thereby improving the stability and safety of the battery pack assembly.

[0009] According to some embodiments of the utility model, the movable beam body includes: a first movable beam and a second movable beam, the first movable beam and the second movable beam are spaced apart in the first direction and the contact surfaces are respectively formed on the surfaces facing each other; the battery pack assembly also includes: a battery cell, the battery cell is arranged between the first movable beam and the second movable beam; wherein the first movable beam and the second movable beam can be moved relatively close to each other in the first direction to clamp the battery cell.

[0010] According to some embodiments of the utility model, the locking device includes: a first locking member and a second locking member, the first locking member and the second locking member are respectively arranged between the main beam body and the movable beam body, the first locking member is suitable for limiting the movement of the movable beam body on one side toward the first direction relative to the main beam body, and the second locking member is suitable for limiting the movement of the movable beam body on the other side toward the first direction relative to the main beam body.

[0011] According to some embodiments of the utility model, the first locking member includes: a base plate, which is suitable for being fixedly connected to a side of the movable beam body facing the first direction; a mounting seat, which is connected to the base plate and is formed with a matching groove suitable for matching with the main beam body, and the matching groove is open in the first direction to be suitable for the mounting seat to move relative to the main beam body; wherein a first limiting portion is provided on the mounting seat, and a second limiting portion matching with the first limiting portion is provided on the main beam body, and the first limiting portion and the second limiting portion can move relative to each other in the first direction.

[0012] According to some embodiments of the present invention, the first limiting portion is configured as a first mounting hole extending in a first direction, and the second limiting portion is configured as a locking bolt that passes through the mounting seat and can be selected to cooperate with the first mounting hole.

[0013] According to some embodiments of the utility model, a locking nut cooperating with the side wall of the mounting seat in the second direction is provided at the end of the locking bolt, and the locking nut cooperates with the locking bolt to be suitable for clamping the mounting seat to lock the mounting seat with the main beam body.

[0014] According to some embodiments of the utility model, the second locking member is arranged at the top of the movable beam body and is provided with a protrusion on the other side facing the first direction, and the protrusion is arranged opposite to the main beam body in the height direction; wherein a third limiting portion is arranged on the protrusion, and a fourth limiting portion cooperating with the third limiting portion is arranged on the top surface of the main beam body.

[0015] According to some embodiments of the utility model, a limiting bracket is provided on the inner wall of the battery cell accommodating cavity, and the limiting bracket forms a limiting groove, and the inner wall of the limiting groove abuts against the side wall of the movable beam in the first direction to limit the movement of the movable beam in the first direction.

[0016] According to some embodiments of the present invention, the battery pack assembly further includes: a bracket assembly, which is disposed on the outer periphery of the sealing basin and is spaced apart from at least a portion of the sealing basin to form a buffer cavity.

[0017] The vehicle according to the present utility model is briefly described below.

[0018] The vehicle according to the utility model includes the battery pack assembly described in any one of the above embodiments. Since the vehicle according to the utility model includes the battery pack assembly described in any one of the above embodiments, the vehicle according to the utility model achieves stable operation of the battery cell, effectively controls expansion and improves performance by optimizing the design of the battery pack assembly, providing a strong guarantee for the safety and reliability of the vehicle.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is an exploded view of a battery pack assembly according to an embodiment of the utility model (the battery cell is not shown);

[0022] Figure 2 It is a schematic diagram of a battery cell, a movable beam body and a main beam body of a battery pack assembly after being grouped according to an embodiment of the utility model;

[0023] Figure 3 is a schematic diagram of a battery pack assembly at a locking device according to an embodiment of the utility model;

[0024] Figure 4 is a schematic diagram of a battery pack assembly at a limiting bracket according to an embodiment of the utility model;

[0025] Figure 5 It is a cross-sectional view of a battery pack assembly at the joint of a bracket assembly and a sealing basin frame according to an embodiment of the utility model;

[0026] Figure 6 It is a cross-sectional view of the combined connection of a battery pack assembly support beam, a sealing basin frame and a liquid cooling mechanism according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] Battery pack assembly 1;

[0029] Sealed basin 11, battery cell accommodating chamber 111;

[0030] The main beam body 12, the second limiting portion 121, and the supporting beam body 122;

[0031] A movable beam body 13, a first movable beam 131, and a second movable beam 132;

[0032] Locking device 14;

[0033] A first locking member 141, a base plate 1411, a mounting seat 1412, and a first limiting portion 1412a;

[0034] A second locking member 142, a protruding portion 142a;

[0035] The battery cell 15 , the limiting bracket 16 , the limiting groove 16 a , the bracket assembly 17 , the buffer cavity 17 a , and the liquid cooling mechanism 18 . DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the related art, the pressure on the battery module after entering the box is directly related to the spacing between the horizontal and vertical beams of the box. If the spacing between the horizontal and vertical beams cannot be effectively controlled, then while providing pressure to the battery cell, it may not be able to accommodate the expansion of the battery cell during use, resulting in a decrease in battery cell performance and even safety issues. Secondly, in order to meet the above-mentioned assembly requirements, the manufacturing process of the power battery box is often very demanding, resulting in a significant increase in the cost of the power battery pack.

[0038] Reference below Figure 1-Figure 6 A battery pack assembly 1 according to an embodiment of the present invention is described.

[0039] like Figure 1 and Figure 2 As shown, according to the utility model, the battery pack assembly 1 includes a sealing basin body 11, a main beam body 12, a movable beam body 13 and a locking device 14, and a battery cell accommodating cavity 111 is formed in the sealing basin body 11; the main beam body 12 is arranged in the battery cell accommodating cavity 111 and extends in a first direction; the movable beam body 13 extends along the second direction and is movably arranged on the main beam body 12, and a contact surface suitable for stopping with the battery cell 15 is formed on the movable beam body 13; the locking device 14 is arranged on the movable beam body 13 and is suitable for locking the movable beam body 13 and the main beam body 12.

[0040] The battery pack assembly 1 of the present application is provided with a sealed basin 11, and a battery cell accommodating cavity 111 is formed in the sealed basin 11. The battery cell 15 can be arranged in the battery cell accommodating cavity 111, and the battery cell 15 is isolated from the external environment, providing a stable operating environment for the battery cell 15, and ensuring the stability and safety of the battery cell 15. By arranging a main beam 12 and a movable beam 13 in the battery accommodating cavity, the main beam 12 extends in a first direction, and the movable beam 13 extends in a second direction. The main beam 12 and the movable beam 13 can contact the battery cell 15 in the battery accommodating cavity, so that the battery cell 15 can be effectively supported and fixed in the accommodating cavity. By movably arranging the movable beam 13 on the main beam 12, the contact surface can be closely fitted with the battery cell 15 by adjusting the position of the movable beam 13, providing appropriate pressure for the battery cell 15, and effectively controlling the expansion of the battery cell 15 during use, thereby improving the performance of the battery pack assembly 1. By setting a locking device 14, after the movable beam 13 is moved to a suitable position, the movable beam 13 can be locked with the main beam 12 through the locking device 14. The movable beam 13 will continue to provide stable pressure to the battery cell 15 in the battery cell accommodating cavity 111 through the contact surface, so that the battery cell 15 is more firmly fixed in the battery cell accommodating cavity 111, so that the battery cell 15 maintains a stable operating state, thereby improving the stability and safety of the battery pack assembly 1.

[0041] Therefore, the battery pack assembly 1 of the present application can provide appropriate pressure for the battery cell 15 by adjusting the position of the movable beam 13, thereby effectively controlling the expansion of the battery cell 15 during use and improving the performance of the battery pack assembly 1. It is easy to operate and has low cost. At the same time, by setting a locking device 14, after the movable beam 13 is moved to a suitable position, the locking device 14 can lock the movable beam 13 with the main beam 12, so that the movable beam 13 can continuously provide pressure for the battery cell 15.

[0042] According to some embodiments of the present invention, Figure 1 and Figure 2As shown, the movable beam body 13 includes a first movable beam 131 and a second movable beam 132, the first movable beam 131 and the second movable beam 132 are spaced apart in the first direction and contact surfaces are formed on surfaces facing each other respectively; the battery pack assembly 1 also includes a battery cell 15, and the battery cell 15 is arranged between the first movable beam 131 and the second movable beam 132; wherein the first movable beam 131 and the second movable beam 132 can be moved relatively close to each other in the first direction to clamp the battery cell 15. By setting the first movable beam 131 and the second movable beam 132, the battery cell 15 is set between the first movable beam 131 and the second movable beam 132, and the surfaces of the first movable beam 131 and the second movable beam 132 facing each other respectively form contact surfaces with the battery cell 15. By adjusting the positions of the first movable beam 131 and the second movable beam 132, the first movable beam 131 and the second movable beam 132 can be relatively close to each other in the first direction, so as to clamp the battery cell 15. The operation is simple, and the battery cell 15 can obtain a more uniform and stable pressure distribution, thereby improving the fixing effect of the battery cell 15, thereby enhancing the structural strength and safety of the battery pack assembly 1.

[0043] According to some embodiments of the present invention, Figure 3 As shown, the locking device 14 includes a first locking member 141 and a second locking member 142, and the first locking member 141 and the second locking member 142 are respectively arranged between the main beam body 12 and the movable beam body 13, and the first locking member 141 is suitable for limiting the movable beam body 13 from moving relative to the main beam body 12 on one side in the first direction, and the second locking member 142 is suitable for limiting the movable beam body 13 from moving relative to the main beam body 12 on the other side in the first direction. By providing the first locking member 141 and the second locking member 142, the movable beam body 13 can be limited from moving relative to the main beam body 12 in the first direction, so that the battery cell 15 is firmly fixed inside the battery pack assembly 1. Specifically, the first locking member 141 is suitable for limiting the movement of the movable beam 13 on one side toward the first direction relative to the main beam 12, while the second locking member 142 is suitable for limiting the movement of the movable beam 13 on the other side toward the first direction relative to the main beam 12, so that the movable beam 13 is firmly locked on the main beam 12, and the movable beam 13 cannot move easily in the first direction, thereby improving the reliability of the movable beam 13 providing pressure for the battery cell 15.

[0044] According to some embodiments of the present invention, Figure 3As shown, the first locking member 141 includes a base plate 1411 and a mounting seat 1412, the base plate 1411 is suitable for being fixedly connected with the side of the moving beam body 13 facing the first direction; the mounting seat 1412 is connected to the base plate 1411 and is formed with a matching groove suitable for matching with the main beam body 12, and the matching groove is open in the first direction to be suitable for the mounting seat 1412 to move relative to the main beam body 12; wherein the mounting seat 1412 is provided with a first limiting portion 1412a, and the main beam body 12 is provided with a second limiting portion 121 matching with the first limiting portion 1412a, and the first limiting portion 1412a and the second limiting portion 121 can move relative to each other in the first direction. By providing the base plate 1411, the base plate 1411 is fixedly connected with the side of the moving beam body 13 facing the first direction, so that the first locking member 141 can be firmly fixed on the moving beam body 13, so that the first locking member 141 can be matched with the main beam body 12 to limit the side of the moving beam body 13 facing the first direction from moving relative to the main beam body 12. By providing a mounting seat 1412, the mounting seat 1412 is connected to the base plate 1411 and formed with a matching groove, the matching groove is open in the first direction, and the main beam body 12 can slide in the matching groove, so that the mounting seat 1412 can move relative to the main beam body 12, thereby facilitating the adjustment of the relative position of the movable beam body 13 and the main beam body 12. By providing a first limiting portion 1412a on the mounting seat 1412 and a second limiting portion 121 on the main beam body 12, when the mounting seat 1412 and the main beam body 12 move relative to each other, the first limiting portion 1412a and the second limiting portion 121 will also move relative to each other, and when the mounting seat 1412 and the main beam body 12 move relative to each other to a suitable position, the first limiting portion 1412a and the second limiting portion 121 can cooperate and lock, thereby limiting the further movement between the mounting seat 1412 and the main beam body 12, and limiting the movement of the movable beam body 13 relative to the main beam body 12 on one side toward the first direction, and the operation is simple and flexible.

[0045] According to some embodiments of the present invention, Figure 3As shown, the first limiting portion 1412a is configured as a first mounting hole extending in the first direction, and the second limiting portion 121 is configured as a locking bolt that passes through the mounting seat 1412 and can be selectively matched with the first mounting hole. By configuring the first limiting portion 1412a as the first mounting hole, and configuring the second limiting portion 121 as a locking bolt that can be matched with the first mounting hole, the locking bolt can pass through the mounting seat 1412 and can be selectively matched with the first mounting hole, so that the first locking member 141 can lock the moving beam body 13 with the main beam body 12, and the operation is simple. Specifically, when it is necessary to adjust the position of the moving beam body 13, the locking bolt can be unlocked from the first mounting hole, and the locking bolt can be moved in the first mounting hole, thereby allowing the moving beam body 13 to be adjusted relative to the main beam body 12 in the first direction. Once the moving beam body 13 is adjusted to a suitable position, the locking bolt can be re-matched with the first mounting hole, thereby locking the relative position between the moving beam body 13 and the main beam body 12.

[0046] According to some embodiments of the utility model, a locking nut is provided at the end of the locking bolt, which cooperates with the side wall of the mounting seat 1412 in the second direction, and the locking nut cooperates with the locking bolt to be suitable for clamping the mounting seat 1412 to lock the mounting seat 1412 with the main beam body 12. By providing a locking nut at the end of the locking bolt, the combination of the locking nut and the locking bolt can apply pressure to the mounting seat 1412 in the second direction, thereby effectively locking the mounting seat 1412 with the main beam body 12. Specifically, when it is necessary to lock the mounting seat 1412 with the main beam body 12, the locking nut can be rotated so that the locking nut presses the side wall of the mounting seat 1412, thereby generating a clamping force in the second direction; when it is necessary to adjust the movable beam body 13, the locking nut can be rotated in the opposite direction to reduce the pressure on the mounting seat 1412, so that the mounting seat 1412 can move relative to the main beam body 12, and the position of the movable beam body 13 can be adjusted.

[0047] According to some embodiments of the present invention, Figure 3As shown, the second locking member 142 is arranged at the top of the moving beam 13 and is provided with a protrusion 142a on the other side facing the first direction, and the protrusion 142a is arranged opposite to the main beam 12 in the height direction; wherein the protrusion 142a is provided with a third limiting portion, and the top surface of the main beam 12 is provided with a fourth limiting portion matched with the third limiting portion. By arranging the second locking member 142 at the top of the moving beam 13 and providing the protrusion 142a on the other side facing the first direction, and the protrusion 142a is arranged opposite to the main beam 12 in the height direction, when the moving beam 13 is moved to a suitable position relative to the main beam 12, the protrusion 142a and the top surface of the main beam 12 can interact and cooperate with each other to fix, so as to limit the moving beam 13 from moving relative to the main beam 12 toward the other side of the first direction. By setting a third limiting portion on the protrusion 142a and setting a fourth limiting portion cooperating with the third limiting portion on the top surface of the main beam body 12, when the movable beam body 13 moves to an appropriate position relative to the main beam body 12, the third limiting portion can cooperate and lock with the fourth limiting portion to enhance the stability of the movable beam body 13.

[0048] According to some embodiments of the present invention, Figure 4 As shown, the inner wall of the battery cell accommodating chamber 111 is provided with a limiting bracket 16, and the limiting bracket 16 forms a limiting groove 16a, and the inner wall of the limiting groove 16a abuts against the side wall of the moving beam 13 in the first direction to limit the movement of the moving beam 13 in the first direction. By providing the limiting bracket 16 on the inner wall of the battery cell accommodating chamber 111, the end of the moving beam 13 can cooperate with the limiting groove 16a, so that the inner wall of the limiting groove 16a abuts against the side wall of the moving beam 13 in the first direction, thereby further limiting the movement of the moving beam 13 in the first direction, and while fixing the moving beam 13, reducing the possible movement of the moving beam 13 during the operation of the vehicle, improving the ability to resist vibration and impact, and enhancing the stability and safety of the battery 15 in the battery pack assembly 1.

[0049] According to some embodiments of the present invention, Figure 1 and Figure 5As shown, the battery pack assembly 1 also includes a bracket assembly 17, which is arranged on the periphery of the sealed basin 11 and is spaced apart from at least part of the sealed basin 11 to form a buffer chamber 17a. By arranging the bracket assembly 17 on the periphery of the sealed basin 11, the bracket assembly 17 can cooperate with the vehicle body to achieve the installation and fixation of the battery pack. The bracket assembly 17 is at least partially spaced apart from the sealed basin 11, thereby forming a buffer chamber 17a, which can effectively absorb and disperse external impact force or vibration, thereby protecting the internal battery cell 15 from damage. When the battery pack assembly 1 is subjected to impact or vibration, the buffer chamber 17a can be used as a shock absorbing area to reduce the direct impact of external force on the battery cell 15, thereby improving the durability and safety of the battery pack assembly 1. Exemplarily, the bracket assembly 17 is connected to the sealed basin 11 by welding, screwing or riveting, etc., to achieve a firm connection between the bracket assembly 17 and the sealed basin 11, so that the battery pack assembly 1 can maintain structural integrity when subjected to external force.

[0050] According to some embodiments of the utility model, the bracket assembly 17 is manufactured by a sheet metal stamping process. Through the sheet metal stamping process, the bracket assembly 17 can obtain a more uniform and accurate wall thickness distribution, thereby enhancing the structural strength of the bracket assembly 17. In addition, the sheet metal stamping process is an efficient production method that can realize large-scale automated production and significantly improve production efficiency.

[0051] According to some embodiments of the utility model, a longitudinal beam and a transverse beam are provided on the bottom surface of the sealing basin 11 away from the battery cell accommodating cavity 111, wherein the longitudinal beam extends in a first direction and the transverse beam extends in a second direction. The provision of the longitudinal beam and the transverse beam enhances the overall structural strength of the sealing basin 11, so that the sealing basin 11 can better withstand the pressure from the inside of the battery cell accommodating cavity 111 as well as the external impact and vibration, so that the battery pack assembly 1 can be effectively supported and protected in multiple directions.

[0052] According to some embodiments of the present invention, Figure 6 As shown, the bottom surface of the sealed basin 11 away from the battery cell accommodating cavity 111 is provided with a liquid cooling mechanism 18, and the liquid cooling mechanism 18 is suitable for absorbing the heat of the sealed basin 11. By providing the liquid cooling mechanism 18, the liquid cooling mechanism 18 acts on the bottom surface of the sealed basin 11, effectively absorbing the heat transferred from the battery cell 15 to the sealed basin 11, thereby improving the heat dissipation efficiency of the battery pack assembly 1.

[0053] According to some embodiments of the present invention, Figure 1 and Figure 6As shown, the battery pack assembly 1 further includes a support beam 122, which extends in the second direction and is disposed on the main beam 12, and the support beam 122 is disposed between the first movable beam 131 and the second movable beam 132. By providing the support beam 122, the support beam 122 cooperates with the first movable beam 131 and the second movable wheel respectively to more reliably fix the battery cell 15, and improves the mechanical properties and stability of the battery pack assembly 1.

[0054] According to some embodiments of the present invention, Figure 6 As shown, the support beam 122 is formed with a first matching hole, the sealing basin 11 is formed with a second matching hole, and the battery pack assembly 1 also includes a fastener, which passes through the first matching hole and the second matching hole in sequence to connect the support beam 122 with the sealing basin 11. Connecting the support beam 122 and the sealing basin 11 with fasteners simplifies the assembly process, reduces production costs, and improves production efficiency and reliability. By connecting the support beam 122 with the sealing basin 11, the position of the main beam 12 is fixed, the overall mechanical strength of the battery pack assembly 1 is increased, and the battery pack assembly 1 is enhanced to resist impact and vibration.

[0055] The vehicle according to the present utility model is briefly described below.

[0056] The vehicle according to the utility model includes the battery pack assembly 1 in any one of the above embodiments. Since the vehicle according to the utility model includes the battery pack assembly 1 in any one of the above embodiments, the vehicle according to the utility model achieves stable operation of the battery cell 15, effectively controls expansion and improves performance by optimizing the design of the battery pack assembly 1, providing a strong guarantee for the safety and reliability of the vehicle.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0059] In the description of the present invention, "plurality" means two or more.

[0060] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0061] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack assembly, characterized in that: include: A sealed basin body (11), wherein a battery cell accommodating cavity (111) is formed in the sealed basin body (11); A main beam body (12), the main beam body (12) being arranged in the battery cell accommodating cavity (111) and extending in a first direction; A movable beam body (13), the movable beam body (13) extending along the second direction and movably arranged on the main beam body (12), the movable beam body (13) being formed with a contact surface suitable for abutting against the battery core (15); A locking device (14), wherein the locking device (14) is arranged on the movable beam body (13) and is suitable for locking the movable beam body (13) and the main beam body (12).

2. The battery pack assembly according to claim 1, characterized in that: The moving beam body (13) comprises: a first moving beam (131) and a second moving beam (132); the first moving beam (131) and the second moving beam (132) are spaced apart in a first direction and are respectively provided with the contact surfaces on their surfaces facing each other; The battery pack assembly further comprises: a battery cell (15), wherein the battery cell (15) is arranged between the first moving beam (131) and the second moving beam (132); The first movable beam (131) and the second movable beam (132) can move relatively close to each other in a first direction to clamp the battery core (15).

3. The battery pack assembly according to claim 1, characterized in that: The locking device (14) comprises: A first locking member (141) and a second locking member (142), wherein the first locking member (141) and the second locking member (142) are respectively arranged between the main beam body (12) and the movable beam body (13), wherein the first locking member (141) is suitable for limiting the movement of the movable beam body (13) toward one side of a first direction relative to the main beam body (12), and the second locking member (142) is suitable for limiting the movement of the movable beam body (13) toward the other side of the first direction relative to the main beam body (12).

4. The battery pack assembly according to claim 3, characterized in that: The first locking member (141) comprises: A base plate (1411), the base plate (1411) being adapted to be fixedly connected to a side of the movable beam body (13) facing the first direction; A mounting seat (1412), the mounting seat (1412) is connected to the base plate (1411) and is formed with a matching groove suitable for matching with the main beam body (12), the matching groove is open in a first direction to allow the mounting seat (1412) to move relative to the main beam body (12); wherein The mounting seat (1412) is provided with a first limiting portion (1412a), and the main beam body (12) is provided with a second limiting portion (121) that cooperates with the first limiting portion (1412a), and the first limiting portion (1412a) and the second limiting portion (121) are relatively movable in a first direction.

5. The battery pack assembly according to claim 4, characterized in that: The first limiting portion (1412a) is configured as a first mounting hole extending in a first direction, and the second limiting portion (121) is configured as a locking bolt that passes through the mounting seat (1412) and can be selected to cooperate with the first mounting hole.

6. The battery pack assembly according to claim 5, characterized in that: The end of the locking bolt is provided with a locking nut that cooperates with the side wall of the mounting seat (1412) in the second direction, and the locking nut cooperates with the locking bolt to be suitable for clamping the mounting seat (1412) to lock the mounting seat (1412) with the main beam body (12).

7. The battery pack assembly according to claim 3, characterized in that: The second locking member (142) is arranged at the top of the movable beam body (13) and is provided with a protruding portion (142a) on the other side facing the first direction, and the protruding portion (142a) is arranged opposite to the main beam body (12) in the height direction; in The protruding portion (142a) is provided with a third limiting portion, and the top surface of the main beam body (12) is provided with a fourth limiting portion that cooperates with the third limiting portion.

8. The battery pack assembly according to claim 1, characterized in that: A limiting bracket (16) is provided on the inner wall of the battery cell accommodating cavity (111), the limiting bracket (16) forms a limiting groove (16a), and the inner wall of the limiting groove (16a) abuts against the side wall of the movable beam (13) in the first direction to limit the movement of the movable beam (13) in the first direction.

9. The battery pack assembly according to claim 1, characterized in that: Also includes: A bracket assembly (17), wherein the bracket assembly (17) is arranged on the outer periphery of the sealing basin (11) and is spaced apart from at least part of the sealing basin (11) to form a buffer chamber (17a).

10. A vehicle, characterized in that: A battery pack assembly comprising any one of claims 1 to 9.

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