Baffle, box and battery pack

Abstract

The application provides a baffle, a box body and a battery pack, and relates to the technical field of battery packs. The baffle comprises a main body substrate and a mounting plate. A through hole is formed in the main body substrate; the through hole is used for allowing a mounting component to pass through. The mounting plate is connected to the main body substrate; one side of the mounting plate away from the main body substrate is provided with a first mounting part and a second mounting part, and the first mounting part and the second mounting part are alternately and spacedly arranged. The first mounting part is used for mounting a first cover plate, and the second mounting part is used for mounting a second cover plate. The baffle can simultaneously mount and support the first cover plate and the second cover plate, has a compact structure, a high space utilization rate, and is beneficial to improving the grouping efficiency and the energy density of the battery pack.

Description

Technical Field

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

[0002] In existing battery pack structures, a cover plate is installed over both the battery compartment and the electrical compartment. To replace or repair components in either compartment, the entire cover plate must be removed. This process is inefficient, time-consuming, and labor-intensive, impacting the overall efficiency of battery pack maintenance. Utility Model Content

[0003] The purpose of this utility model is to provide a baffle, a box and a battery pack, which facilitates the assembly and disassembly of the battery pack structure, improves maintenance and replacement efficiency, and saves time and effort.

[0004] In a first aspect, this utility model provides a baffle, comprising:

[0005] A main substrate; the main substrate has through holes; the through holes are used for mounting components to pass through.

[0006] Mounting plate; the mounting plate is connected to the main substrate; the side of the mounting plate away from the main substrate is provided with a first mounting part and a second mounting part, the first mounting part and the second mounting part are alternately arranged, the first mounting part is used to mount a first cover plate, and the second mounting part is used to mount a second cover plate.

[0007] In an optional embodiment, the first mounting portion includes a plurality of first mounting holes, and the second mounting portion includes a plurality of second mounting holes, wherein the first mounting holes and the second mounting holes are alternately spaced along the length direction of the main substrate.

[0008] In an optional embodiment, the mounting plate is provided with a plurality of reinforcing protrusions, which extend in the same direction and form clearance gaps between adjacent reinforcing protrusions.

[0009] In an optional embodiment, the mounting plate has a mounting bracket on the side facing the main substrate, and the mounting bracket is used to mount the wire harness fixer.

[0010] In an optional embodiment, the mounting bracket includes a first segment, a second segment, and a third segment connected in sequence, with the first segment and the third segment disposed opposite to each other; the first segment and the third segment are respectively connected to the mounting plate; the second segment is used to install the wire harness fixator.

[0011] In an optional embodiment, the mounting bracket includes a first bend and a second bend connected together. The first bend is connected to the mounting plate, and the second bend is located at the end of the first bend away from the mounting plate. The first bend and the second bend are arranged at an angle. The second bend is used to mount the wire harness retainer.

[0012] In an optional embodiment, the through hole includes two first through holes and two second through holes, which are alternately spaced along the length of the main substrate.

[0013] In an optional embodiment, the mounting bracket and the second through hole are arranged opposite to each other.

[0014] Secondly, the present invention provides a box body, including a shell, a first cover plate, a second cover plate, and a baffle as described in any of the foregoing embodiments; the shell has a receiving cavity with an opening on one side;

[0015] The baffle is disposed inside the housing to divide the receiving cavity into a first cavity and a second cavity; the through hole is used to connect the first cavity and the second cavity;

[0016] The mounting plate is connected to one end of the main substrate near the opening of the receiving cavity;

[0017] The first cover plate is connected to both the housing and the mounting plate; the second cover plate is connected to both the housing and the mounting plate.

[0018] Optionally, the first cover plate is provided with a third mounting hole, and the second cover plate is provided with a fourth mounting hole. The ends of the first cover plate and the second cover plate that are close to each other are respectively provided with misaligned grooves, which are misaligned and avoid each other. The third mounting hole is located in the misaligned groove of the second cover plate, and the fourth mounting hole is located in the misaligned groove of the first cover plate.

[0019] Thirdly, this utility model provides a battery pack, including a battery and a housing as described in the foregoing embodiments, wherein the battery is disposed within the housing.

[0020] The baffle, housing, and battery pack provided in this embodiment of the utility model have the following beneficial effects:

[0021] The baffle provided in this embodiment of the utility model is designed with alternating first and second mounting parts, which can be used to install and fix the first and second covers of the housing, respectively. This allows the first and second covers to be independently installed and removed, facilitating maintenance and replacement operations and improving work efficiency. Furthermore, the first and second mounting parts are located on the same plane, without occupying space in the height direction of the housing, resulting in a more compact structure, high space utilization, and improved overall energy density of the battery pack.

[0022] The housing provided in this embodiment of the utility model includes the aforementioned baffle, which has a compact structure, high space utilization, and facilitates the assembly, disassembly, maintenance, and replacement of the battery pack structure, saving time and effort and increasing assembly and disassembly efficiency.

[0023] The battery pack provided in this embodiment includes the aforementioned housing, which has high assembly and disassembly efficiency, high efficiency in maintenance and replacement operations, and a compact structure with high space utilization, thereby improving the overall energy density. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the installation structure of the baffle in the box provided in an embodiment of the present utility model;

[0026] Figure 2 A schematic diagram of the structure of the baffle provided in an embodiment of this utility model;

[0027] Figure 3 A schematic diagram of a first structure of the mounting bracket for the baffle provided in an embodiment of this utility model;

[0028] Figure 4 A schematic diagram of a second structure of the mounting bracket for the baffle provided in an embodiment of this utility model;

[0029] Figure 5 A schematic diagram of the disassembled structure of the battery pack provided in an embodiment of this utility model;

[0030] Figure 6 A schematic diagram of the structure of the first cover plate of the battery pack provided in an embodiment of this utility model;

[0031] Figure 7 A schematic diagram of the structure of the second cover plate of the battery pack provided in an embodiment of this utility model.

[0032] Icons: 100 - Housing; 110 - Shell; 111 - Base plate; 112 - Front panel; 113 - Rear panel; 114 - Left side panel; 115 - Right side panel; 101 - Receiving cavity; 102 - First cavity; 103 - Second cavity; 120 - Baffle; 121 - Main substrate; 122 - Through hole; 1221 - First through hole; 1222 - Second through hole; 1223 - Third through hole; 123 - Mounting plate; 124 - First mounting part; 125 - Second mounting part; 126 - Reinforcing protrusion; 12 7 - Avoidance notch; 130 - Mounting bracket; 131 - First segment; 132 - Second segment; 133 - Third segment; 134 - First bend; 135 - Second bend; 140 - Wiring harness retainer; 150 - First cover plate; 151 - Third mounting hole; 160 - Second cover plate; 161 - Fourth mounting hole; 163 - Misalignment groove; 200 - Battery pack; 210 - Battery; 220 - Positive copper busbar; 230 - Negative copper busbar; 240 - Liquid inlet pipe; 250 - Liquid outlet pipe; 260 - Cold plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0040] Combination Figure 1 The present invention provides a baffle 120 that can be used in the housing 100 structure of the battery pack 200 to divide the receiving cavity 101 inside the housing 100 into a first cavity 102 and a second cavity 103. The first cavity 102 serves as the battery 210 compartment, and the second cavity 103 serves as the electrical compartment, which facilitates assembly and disassembly, and makes maintenance and replacement of the battery pack 200 easier.

[0041] Combination Figure 2The baffle 120 includes a main substrate 121 and a mounting plate 123. A through hole 122 is formed on the main substrate 121 for mounting components to pass through. The mounting components include, but are not limited to, a positive electrode copper busbar 220, a negative electrode copper busbar 230, a low-voltage wiring harness, an inlet pipe 240, and an outlet pipe 250. The mounting plate 123 is connected to the main substrate 121. A first mounting portion 124 and a second mounting portion 125 are provided on the side of the mounting plate 123 away from the main substrate 121, and the first mounting portion 124 and the second mounting portion 125 are alternately arranged. The first mounting portion 124 is used to mount a first cover plate 150, and the second mounting portion 125 is used to mount a second cover plate 160. The baffle 120 can simultaneously mount and support the first cover plate 150 and the second cover plate 160, resulting in a compact structure, high space utilization, and improved assembly efficiency and energy density of the battery pack 200. It is understandable that the first mounting part 124 and the second mounting part 125 are located on the same plane, which does not occupy the space in the height direction of the housing 100. The structure is more compact and the space utilization rate is high, which is conducive to improving the overall energy density of the battery pack 200.

[0042] In this embodiment, the overall cross-section of the main substrate 121 and the mounting plate 123 after connection is T-shaped. The mounting plate 123 is located at the head of the T-shape. The first mounting part 124 and the second mounting part 125 are arranged in a single row on the mounting plate 123, which can save space in the length direction of the housing 100, resulting in a compact structure and high space utilization.

[0043] Optionally, the first mounting portion 124 includes multiple first mounting holes, and the second mounting portion 125 includes multiple second mounting holes. The first and second mounting holes are arranged in a single row, alternating at intervals, along the length of the main substrate 121. It is understood that the first cover plate 150 has a third mounting hole 151 corresponding to the first mounting holes, and the second cover plate 160 has a fourth mounting hole 161 corresponding to the second mounting holes. By inserting bolts or other fasteners into the first and third mounting holes 151, the first cover plate 150 and the baffle 120 can be fixedly connected. Similarly, by inserting bolts or other fasteners into the second and fourth mounting holes 161, the second cover plate 160 and the baffle 120 can be fixedly connected. This arrangement results in a compact structure, allowing the first and second cover plates 150 and 160 to be laid flat on the mounting plate 123 without occupying additional space in the height direction of the housing 100. Furthermore, installation is convenient. When repairing or replacing parts, the first cover plate 150 or the second cover plate 160 can be removed separately without having to remove the entire cover plate, saving time and effort.

[0044] Of course, in other embodiments, the first mounting part 124 and the second mounting part 125 may adopt other structural forms such as mounting posts or snap-fits. The first cover plate 150 or the second cover plate 160 and the baffle 120 may also be connected by snap-fit, plug-in or threaded connection, etc., which are not specifically limited here.

[0045] Optionally, the mounting plate 123 is provided with a plurality of reinforcing protrusions 126, which extend in the same direction, and a clearance notch 127 is formed between adjacent reinforcing protrusions 126. The reinforcing protrusions 126 increase the structural strength of the baffle 120. Especially at the locations of the first mounting portion 124 and the second mounting portion 125, the reinforcing protrusions 126 can be provided to widen the width of the mounting portion, thereby improving the structural strength of the mounting plate 123 and the connection strength between the baffle 120 and the first cover plate 150 and the second cover plate 160, respectively, resulting in a more reliable structure. It is understood that the formed clearance notch 127 provides more space for other components in the battery pack 200, such as flexible circuit boards, low-voltage connectors, or connection bars on the battery 210, avoiding installation interference between components and resulting in a more compact structure.

[0046] Combination Figure 3 Optionally, the mounting plate 123 has a mounting bracket 130 on the side facing the main substrate 121. The mounting bracket 130 is used to mount the wire harness retainer 140. In this embodiment, the wire harness retainer 140 adopts a sheet metal clip. The low-voltage wire harness in the battery pack 200 passes through the through hole 122 and is fixed and organized by the sheet metal clip, avoiding messy wiring, saving space, and preventing interference between the low-voltage wire harness and other components.

[0047] Optionally, the mounting bracket 130 includes a first segment 131, a second segment 132, and a third segment 133 connected in sequence, with the first segment 131 and the third segment 133 arranged opposite to each other. The first segment 131 and the third segment 133 are respectively connected to the mounting plate 123; the second segment 132 is used to mount the wire harness retainer 140. The mounting bracket 130 is U-shaped, with the U-shaped opening facing the mounting plate 123. The U-shaped space is used to fix the wire harness retainer 140. It is understood that the U-shaped mounting bracket 130 can be fixed to the mounting plate 123 by welding or bolt connection.

[0048] Combination Figure 4Of course, in other embodiments, the structure of the mounting bracket 130 can be flexibly designed. Optionally, the mounting bracket 130 includes a connected first bent portion 134 and a second bent portion 135. The first bent portion 134 is connected to the mounting plate 123, and the second bent portion 135 is located at the end of the first bent portion 134 away from the mounting plate 123; the first bent portion 134 and the second bent portion 135 are set at an angle; the second bent portion 135 is used to install the wire harness retainer 140. The mounting bracket 130 is L-shaped and can be integrally formed with the mounting plate 123. For example, by bending one edge of the mounting plate 123 into an L-shape, it is also convenient to install the wire harness retainer 140. Furthermore, by adopting an integral bending forming method, the welding process is eliminated, making manufacturing easier, and deformation of the mounting plate 123 caused by welding can be avoided, resulting in greater structural strength and greater reliability.

[0049] Optionally, the through holes 122 on the baffle 120 include two first through holes 1221 and two second through holes 1222, which are alternately spaced along the length of the main substrate 121. The two first through holes 1221 are used for the positive copper busbar 220 and the negative copper busbar 230 to pass through, respectively. The two second through holes 1222 are used for two sets of low-voltage wiring harnesses to pass through, respectively. The low-voltage wiring harnesses are signal acquisition lines of the battery pack 200, such as those used to acquire signals such as temperature, current, and voltage of the battery 210. The alternating arrangement of the two first through holes 1221 and the two second through holes 1222 ensures sufficient electrical safety distance, avoids short circuits due to contact with wires, and improves safety.

[0050] Optionally, the mounting bracket 130 and the second through hole 1222 are positioned opposite each other. This facilitates the low-voltage wire harness passing through the second through hole 1222 and fixing it to the wire harness holder 140, making wiring easier and avoiding interference between high-voltage and low-voltage lines.

[0051] Optionally, the baffle 120 is also provided with two third through holes 1223. The two third through holes 1223 are used for the inlet pipe 240 and the outlet pipe 250 to pass through, respectively. The two third through holes 1223 are spaced apart and relatively far from the mounting plate 123. The first through hole 1221 and the second through hole 1222 are relatively close to the mounting plate 123. This arrangement allows the high and low voltage wiring and the inlet pipe 240 and outlet pipe 250 to be staggered in the vertical direction, making full use of space, ensuring that installation does not interfere with each other, and saving space in the length direction of the housing 100. Furthermore, it avoids the reduction in structural strength of the baffle 120 due to the concentrated design of the through holes 122.

[0052] Combination Figure 1 and Figure 5This utility model embodiment also provides a housing 100, including a shell 110, a first cover plate 150, a second cover plate 160, and the aforementioned baffle 120. The shell 110 has a receiving cavity 101 with an opening on one side. The shell 110 includes a bottom plate 111, a front end plate 112, a rear end plate 113, a left side plate 114, and a right side plate 115. The front end plate 112, rear end plate 113, left side plate 114, and right side plate 115 are respectively connected to the periphery of the bottom plate 111, together forming the receiving cavity 101 with an opening on one side. The opening and the bottom plate 111 are arranged opposite to each other.

[0053] It should be noted that the length direction in this text is defined as the direction from the front panel 112 to the rear panel 113. The width direction is defined as the direction from the left panel 114 to the right panel 115. The height direction is the direction perpendicular to the bottom panel 111.

[0054] A baffle 120 is disposed within the housing 110 to divide the receiving cavity 101 into a first cavity 102 and a second cavity 103; a through hole 122 is used to connect the first cavity 102 and the second cavity 103. Optionally, the baffle 120 is arranged parallel to the front end plate 112 and the rear end plate 113, respectively. The two ends of the baffle 120 are respectively sealed to the left side plate 114 and the right side plate 115. The side of the baffle 120 away from the opening is sealed to the bottom plate 111. Thus, the side of the baffle 120 facing the rear end plate 113 forms the first cavity 102, i.e., the battery 210 compartment, which is used to hold multiple batteries 210. The side of the baffle 120 facing the front end plate 112 forms the second cavity 103, i.e., the electrical compartment.

[0055] The mounting plate 123 of the baffle 120 is connected to one end of the main substrate 121 near the opening of the receiving cavity 101. A first cover plate 150 is connected to both the housing 110 and the mounting plate 123; a second cover plate 160 is also connected to both the housing 110 and the mounting plate 123. The first cover plate 150 covers the first cavity 102, and the second cover plate 160 covers the second cavity 103. Optionally, the baffle 120 is sealed to both the first cover plate 150 and the second cover plate 160. In this way, the first cavity 102 and the second cavity 103 are relatively independent, preventing the expanding foam filling the first cavity 102 from overflowing into the second cavity 103 and avoiding contamination of the second cavity 103 by the expanding foam.

[0056] Combination Figure 6 and Figure 7Optionally, the first cover plate 150 and the second cover plate 160 are respectively provided with misaligned grooves 163 at their adjacent ends to avoid each other. The first cover plate 150 is provided with a third mounting hole 151, and the second cover plate 160 is provided with a fourth mounting hole 161. The position of the third mounting hole 151 on the first cover plate 150 is located within the misaligned groove 163 of the second cover plate 160. The position of the fourth mounting hole 161 on the second cover plate 160 is located within the misaligned groove 163 of the first cover plate 150. This arrangement can be adapted to the structure of the first mounting part 124 and the second mounting part 125 on the first baffle 120 being arranged in a single row, saving space in the length direction of the box 100 and making the structure more compact.

[0057] This embodiment of the utility model also provides a battery pack 200, including a battery 210 and the aforementioned housing 100, with the battery 210 disposed within the housing 100. The battery 210 is housed in a battery compartment, and a second cavity 103 contains electrical components such as a BDU (Battery Utility Unit). Multiple batteries 210 are connected in series and parallel to form a group, with the positive output connected to a positive copper busbar 220 and the negative output connected to a negative copper busbar 230. The positive and negative copper busbars 220 and 230 extend through the first through-hole 1221 of the baffle 120 into the electrical compartment, connecting to the positive and negative terminals in the electrical compartment. The low-voltage acquisition component of the battery pack 200 includes a flexible circuit board, a low-voltage connector, and a low-voltage wiring harness. The low-voltage connector is connected to the flexible circuit board, one end of the low-voltage wiring harness is connected to the low-voltage connector, and the other end extends through the second through-hole 1222 of the baffle 120 into the electrical compartment, where it is fixed by a wiring harness retainer 140. A cold plate 260 is provided between adjacent batteries 210. The liquid inlet pipe 240 and the liquid outlet pipe 250 are respectively connected to the cold plate 260 to perform thermal management of the batteries 210. The liquid inlet pipe 240 and the liquid outlet pipe 250 are respectively led out from the electrical compartment through the third through hole 1223.

[0058] The battery pack 200 has a compact structure and high space utilization, which helps to improve the overall energy density. The first cover plate 150 and the second cover plate 160 can be removed independently, and the components in the battery compartment 210 and the electrical compartment can be repaired and replaced individually, resulting in high assembly and disassembly efficiency.

[0059] In summary, the baffle 120, housing 100, and battery pack 200 provided in this embodiment of the present invention have the following beneficial effects, including:

[0060] The baffle 120 provided in this embodiment of the utility model is designed with alternating first mounting portions 124 and second mounting portions 125, which can be used to install and fix the first cover plate 150 and the second cover plate 160 of the housing 100, respectively. This allows the first cover plate 150 and the second cover plate 160 to be independently installed and removed, facilitating maintenance and replacement operations and improving work efficiency. Furthermore, the first mounting portions 124 and the second mounting portions 125 are located on the same plane, without occupying space in the height direction of the housing 100, resulting in a more compact structure, high space utilization, and improved overall energy density of the battery pack 200.

[0061] The housing 100 provided in this embodiment of the utility model includes the baffle 120 mentioned above. It has a compact structure, high space utilization, and facilitates the installation, disassembly, maintenance and replacement of the battery pack 200 structure, saving time and effort and increasing installation and disassembly efficiency.

[0062] The battery pack 200 provided in this embodiment includes the aforementioned housing 100, which has high assembly and disassembly efficiency, high efficiency in maintenance and replacement operations, and a compact structure with high space utilization, thereby improving the overall energy density.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A baffle, characterized in that, include: A main substrate (121); a through hole (122) is provided on the main substrate (121); the through hole (122) is used for mounting components to pass through; Mounting plate (123); the mounting plate (123) is connected to the main substrate (121); the mounting plate (123) has a first mounting part (124) and a second mounting part (125) on the side away from the main substrate (121), the first mounting part (124) and the second mounting part (125) are alternately spaced, the first mounting part (124) is used to mount the first cover plate (150), and the second mounting part (125) is used to mount the second cover plate (160).

2. The baffle of claim 1, wherein The first mounting portion (124) includes a plurality of first mounting holes, and the second mounting portion (125) includes a plurality of second mounting holes. The first mounting holes and the second mounting holes are alternately spaced along the length direction of the main substrate (121).

3. The baffle according to claim 1, characterized in that, The mounting plate (123) is provided with a plurality of reinforcing protrusions (126), which extend in the same direction and form clearance gaps (127) between adjacent reinforcing protrusions (126).

4. The baffle according to claim 1, characterized in that, The mounting plate (123) is provided with a mounting bracket (130) on the side facing the main substrate (121), and the mounting bracket (130) is used to install the wire harness fixer (140).

5. The baffle according to claim 4, characterized in that, The mounting bracket (130) includes a first segment (131), a second segment (132), and a third segment (133) connected in sequence, with the first segment (131) and the third segment (133) arranged opposite to each other; the first segment (131) and the third segment (133) are respectively connected to the mounting plate (123); the second segment (132) is used to install the wire harness fixer (140).

6. The baffle according to claim 4, characterized in that, The mounting bracket (130) includes a first bent portion (134) and a second bent portion (135) connected together. The first bent portion (134) is connected to the mounting plate (123), and the second bent portion (135) is located at the end of the first bent portion (134) away from the mounting plate (123). The first bent portion (134) and the second bent portion (135) are set at an angle. The second bent portion (135) is used to install the wire harness fixer (140).

7. The baffle according to claim 4, characterized in that, The through hole (122) includes two first through holes (1221) and two second through holes (1222). The two first through holes (1221) and the two second through holes (1222) are alternately spaced along the length direction of the main substrate (121). The mounting bracket (130) and the second through holes (1222) are arranged opposite to each other.

8. A box, characterized in that, It includes a housing (110), a first cover plate (150), a second cover plate (160), and a baffle according to any one of claims 1 to 7; the housing (110) has a receiving cavity (101) with an opening on one side; The baffle is disposed inside the housing (110) to divide the receiving cavity (101) into a first cavity (102) and a second cavity (103); the through hole (122) is used to connect the first cavity (102) and the second cavity (103); The mounting plate (123) is connected to one end of the main substrate (121) near the opening of the receiving cavity (101); The first cover plate (150) is connected to the housing (110) and the mounting plate (123) respectively; the second cover plate (160) is connected to the housing (110) and the mounting plate (123) respectively.

9. The housing according to claim 8, characterized in that, The first cover plate (150) is provided with a third mounting hole (151), and the second cover plate (160) is provided with a fourth mounting hole (161). The first cover plate (150) and the second cover plate (160) are respectively provided with misaligned grooves (163) at their respective ends, which are misaligned and avoid each other. The third mounting hole (151) is located in the misaligned groove (163) of the second cover plate (160), and the fourth mounting hole (161) is located in the misaligned groove of the first cover plate (150).

10. A battery pack, characterized in that, It includes a battery (210) and a housing as described in claim 8 or 9, wherein the battery (210) is disposed within the housing.

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