A battery mounting device, chassis and unmanned vehicle

Abstract

This utility model belongs to the field of unmanned vehicle technology and discloses a battery mounting device, a chassis, and an unmanned vehicle. The battery mounting device is connected to the chassis frame of the vehicle. The chassis frame includes two longitudinal beams extending along a first direction and spaced apart along a second direction. The battery mounting device includes bracket assemblies for mounting the battery on the chassis frame. At least two bracket assemblies are detachably connected to each longitudinal beam and spaced apart along the first direction. Each bracket assembly includes a connecting bracket and an adapter bracket that are interconnected. The connecting bracket is used to connect to the longitudinal beam and is adjustable relative to the longitudinal beam along a third direction. The adapter bracket is used to connect to the battery and is adjustable relative to the connecting bracket along the second direction.

Description

Technical Field

[0001] This utility model relates to the field of unmanned vehicle technology, and in particular to a battery mounting device, chassis and unmanned vehicle. Background Technology

[0002] Unmanned logistics vehicles are intelligent transportation tools based on autonomous driving technology. They are currently mainly used in last-mile delivery of express delivery services, closed-loop logistics transportation, automated long-distance freight transport, and intelligent warehousing and handling, and have high market demand. The battery bracket plays a crucial role in unmanned logistics vehicles. With the rapid development of the unmanned logistics vehicle market, the design and optimization of the battery bracket have become increasingly important. This not only ensures the stability and safety of the battery but also improves its heat dissipation performance and extends its lifespan.

[0003] In existing technologies, the battery brackets of unmanned logistics vehicles are usually directly fixed to the chassis frame. This design means that a chassis frame can only be used to install a specific battery model, resulting in low versatility and practicality. Consequently, when replacing the battery, the entire chassis frame must be replaced, leading to extremely high manufacturing and replacement costs. Moreover, since existing chassis frames correspond one-to-one with battery models, multiple different chassis frames need to be prepared in advance to accommodate different battery models, resulting in significant equipment investment and a substantial increase in production costs.

[0004] Therefore, there is an urgent need for a highly versatile battery mounting device. Utility Model Content

[0005] The purpose of this utility model is to provide a highly versatile battery mounting device, chassis, and unmanned vehicle.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A battery mounting device is connected to a vehicle chassis frame, the chassis frame including two longitudinal beams extending along a first direction and spaced apart along a second direction, the battery mounting device comprising:

[0008] A bracket assembly for mounting a battery on the chassis frame, wherein at least two bracket assemblies are detachably connected to each longitudinal beam, and the at least two bracket assemblies are spaced apart along a first direction. Each bracket assembly includes a connecting bracket and an adapter bracket connected to each other. The connecting bracket is used to connect to the longitudinal beam and is adjustable relative to the longitudinal beam along a third direction. The adapter bracket is used to connect to the battery and is adjustable relative to the connecting bracket along a second direction.

[0009] Wherein, the first direction and the second direction are set at an angle, and the third direction is set at an angle to the plane containing the first direction and the second direction.

[0010] Preferably, the connecting bracket includes a first connecting part and a second connecting part, the first connecting part is provided with a first connecting hole, the longitudinal beam is provided with a beam connecting hole, and the battery mounting device further includes a first connecting member, which can pass through the first connecting hole and the beam connecting hole to realize the connection between the connecting bracket and the longitudinal beam.

[0011] Preferably, multiple first connecting holes are provided, and the multiple first connecting holes are spaced apart along the third direction; multiple beam connecting holes are also provided, and the beam connecting holes are spaced apart along the third direction.

[0012] Each of the first connecting holes can mate with different beam connecting holes, or each beam connecting hole can mate with different first connecting holes, so that the position of the first connecting part relative to the longitudinal beam along the third direction is adjustable.

[0013] Preferably, the first connecting portion extends along the third direction, the second connecting portion extends along the second direction, and a first reinforcing rib is provided between the first connecting portion and the second connecting portion.

[0014] Preferably, the adapter bracket includes a third connecting part and a fourth connecting part, the second connecting part is provided with a second connecting hole, the third connecting part is provided with a third connecting hole, and the bracket assembly further includes a second connecting member, which can pass through the second connecting hole and the third connecting hole to realize the connection between the connecting bracket and the adapter bracket.

[0015] Preferably, a plurality of second connecting holes are provided, and the plurality of second connecting holes are spaced apart along the second direction; a plurality of third connecting holes are provided, and the plurality of third connecting holes are spaced apart along the second direction.

[0016] Each of the third connecting holes can mate with different second connecting holes, or each of the second connecting holes can mate with different third connecting holes, so that the position of the third connecting part relative to the second connecting part along the second direction is adjustable.

[0017] Preferably, the third connecting portion extends along the second direction, the fourth connecting portion extends along the third direction, and a second reinforcing rib is provided between the third connecting portion and the fourth connecting portion.

[0018] Preferably, the fourth connecting part is provided with a fourth connecting hole, the side wall of the battery is provided with a connecting groove, and the battery mounting device further includes a third connecting member, which can pass through the fourth connecting hole and the connecting groove to realize the connection between the adapter bracket and the battery.

[0019] A chassis includes a chassis frame and the aforementioned battery mounting device, wherein the battery mounting device is connected to the chassis frame.

[0020] An unmanned vehicle, including the aforementioned chassis.

[0021] The beneficial effects of this utility model are:

[0022] This utility model proposes a battery mounting device connected to a vehicle chassis frame. The chassis frame includes two longitudinal beams extending along a first direction and spaced apart along a second direction. The battery mounting device includes bracket assemblies for mounting the battery on the chassis frame. At least two bracket assemblies are detachably connected to each longitudinal beam and are spaced apart along the first direction. Each bracket assembly includes a connecting bracket and an adapter bracket connected to each other. The connecting bracket is used to connect to the longitudinal beam and is adjustable relative to the longitudinal beam along a third direction. The adapter bracket is used to connect to the battery and is adjustable relative to the connecting bracket along the second direction. First, at least two bracket assemblies spaced apart along a first direction are detachably connected to the longitudinal beam. The number and position of these bracket assemblies in the first direction can be adjusted to accommodate the length of the battery in that direction. Second, each connecting bracket is adjustable relative to the longitudinal beam along a third direction. Adjusting the connecting bracket in this third direction allows for adaptation to the battery's length in that direction. Finally, an adapter bracket is adjustable relative to the connecting brackets along a second direction. Adjusting the adapter bracket in this second direction allows for adaptation to the length of the connected battery in that direction. In summary, this battery mounting device, through its three-dimensional adjustable design, can seamlessly adapt to various battery models. This solves the problem that traditional battery brackets, which are typically fixed directly to the chassis frame, cannot handle diverse battery specifications. It offers high versatility, reduces customization requirements, and effectively lowers production and manufacturing costs.

[0023] On the other hand, this utility model also proposes a chassis, including a chassis frame and the aforementioned battery mounting device. The battery mounting device is connected to the chassis frame. This chassis can install different types of batteries, has high versatility, and has high installation efficiency.

[0024] On the other hand, this utility model also proposes an unmanned vehicle, including the aforementioned chassis, which can be equipped with different types of batteries and has high versatility. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the chassis structure proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the connecting bracket in the bracket assembly proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the adapter bracket in the bracket assembly proposed in this utility model.

[0028] In the picture:

[0029] 1. Bracket assembly; 11. Connecting bracket; 111. First connecting part; 1111. First connecting hole; 112. Second connecting part; 1121. Second connecting hole; 113. First reinforcing rib; 12. Adapter bracket; 121. Third connecting part; 1211. Third connecting hole; 122. Fourth connecting part; 1221. Fourth connecting hole; 123. Second reinforcing rib; 10. Chassis frame; 101. Longitudinal beam; 1011. Beam connecting hole; 102. Crossbeam; 20. Battery. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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" and "second" are only used for distinction in description and have no special meaning.

[0034] Reference Figures 1 to 3 This describes the battery mounting device in an embodiment of the present invention.

[0035] Reference Figure 1 This embodiment proposes a battery mounting device connected to a vehicle chassis frame 10. The chassis frame 10 includes two longitudinal beams 101 extending along a first direction, and the two longitudinal beams 101 are spaced apart along a second direction. The battery mounting device includes a bracket assembly 1 for mounting a battery 20 onto the chassis frame 10. At least two bracket assemblies 1 are detachably connected to each longitudinal beam 101, and the at least two bracket assemblies 1 are spaced apart along the first direction. The bracket assembly 1 includes a connecting bracket 11 and an adapter bracket 12 connected to each other. The connecting bracket 11 is used to connect to the longitudinal beam 101, and the connecting bracket 11 is adjustable relative to the longitudinal beam 101 along a third direction. The adapter bracket 12 is used to connect to the battery 20, and the adapter bracket 12 is adjustable relative to the connecting bracket 11 along the second direction. The first direction and the second direction are set at an angle, and the third direction is set at an angle to the plane containing the first direction and the second direction.

[0036] First, at least two bracket assemblies 1 are detachably connected to the longitudinal beam 101, spaced apart along a first direction. The number and position of the bracket assemblies 1 in the first direction can be adjusted to accommodate the length of the battery 20 in that direction, i.e., the length of the battery 20. Second, each connecting bracket 11 is adjustable relative to the longitudinal beam 101 along a third direction. Adjusting the connecting bracket 11 in the third direction can accommodate the length of the battery 20 in that direction, i.e., the height of the battery 20. Finally, the adapter bracket 12 is adjustable relative to the connecting bracket 11 along a second direction. Adjusting the adapter bracket 12 in the second direction can accommodate the length of the connected battery 20 in the second direction, i.e., the width of the battery 20. In summary, this battery mounting device, through its three-dimensional adjustable design, can seamlessly adapt to various battery models 20, solving the problem that traditional battery brackets, which are usually directly fixed to the chassis frame 10, cannot handle the diverse specifications of the battery 20. This provides high versatility, reduces customization requirements, and effectively lowers production and manufacturing costs.

[0037] In some embodiments, the first direction and the second direction are perpendicular to each other, and the third direction is perpendicular to the plane formed by the first direction and the second direction. The first direction is the length direction of the vehicle, i.e., the length direction of the chassis frame 10 and also the length direction of the battery 20; the second direction is the width direction of the vehicle, i.e., the width direction of the chassis frame 10 and also the width direction of the battery 20; and the third direction is the height direction of the vehicle, i.e., the height direction of the chassis frame 10 and also the height direction of the battery 20.

[0038] Specifically, at least two support assemblies 1 are detachably connected to the longitudinal beam 101 and spaced apart along a first direction. The number and position of the support assemblies 1 in the first direction can be adjusted to accommodate the length of the battery 20 in that direction. For example, when the battery 20 is long, the number of support assemblies 1 on the longitudinal beam 101 can be increased, that is, the number of support assemblies 1 in the first direction can be increased to match the longer battery 20. At the same time, the distance between two adjacent support assemblies 1 can be adjusted, that is, the position of the support assemblies 1 in the first direction can be adjusted to match the length of the battery 20, while ensuring uniform force on the battery 20 connected in the first direction. When the battery 20 is short, the number of support assemblies 1 on the longitudinal beam 101 can be reduced accordingly.

[0039] Furthermore, each connecting bracket 11 is adjustable relative to the longitudinal beam 101 in a third direction. By adjusting the connecting bracket 11 in the third direction, the length of the battery 20 in that direction, i.e., the height of the battery 20, can be accommodated. For example, when the height of the battery 20 is large, the connecting bracket 11 can be adjusted downwards in the third direction (height direction), leaving a larger clearance between the connecting bracket 11 and the longitudinal beam 101 in the height direction, ensuring that the taller battery 20 can still be smoothly connected to the bracket assembly 1. When the height of the battery 20 is small, the connecting bracket 11 can be adjusted upwards in the third direction (height direction), reducing the distance between the connecting bracket 11 and the longitudinal beam 101 in the height direction. This ensures smooth connection with the battery 20 bracket assembly 1 while reducing the overall height of the battery mounting device and chassis frame 10 after connection, i.e., reducing the overall height of the chassis.

[0040] Furthermore, the adapter bracket 12 is adjustable relative to the connecting bracket 11 along the second direction. By adjusting the adapter bracket 12 in the second direction, it can accommodate the length of the connected battery 20 in the second direction, i.e., the width of the battery 20. For example, when the width of the battery 20 is large, the adapter brackets 12 on both longitudinal beams 101 can be adjusted along the second direction, with both adapter brackets 12 on both longitudinal beams 101 adjusted towards the side away from each other, thereby increasing the distance between the two adapter brackets 12 to match the larger width of the battery 20. When the width of the battery 20 is small, the adapter brackets 12 on both longitudinal beams 101 can be adjusted along the second direction, with both adapter brackets 12 on both longitudinal beams 101 adjusted towards the side closer to each other, thereby decreasing the distance between the two adapter brackets 12 to match the smaller width of the battery 20.

[0041] In addition, the chassis frame 10 also includes multiple crossbeams 102 extending along a second direction. These crossbeams 102 are spaced apart between two longitudinal beams 101 along a first direction. Support assemblies 1 can also be connected to the crossbeams 102. It is understood that the support assemblies 1 on the longitudinal beams 101 are used to connect to the end face of the battery 20 in the length direction, and the support assemblies 1 on the crossbeams 102 are used to connect to the end face of the battery 20 in the width direction. Therefore, the support assemblies 1 on the crossbeams 102 ensure that the battery 20 can be connected to the chassis frame 10 from all sides, guaranteeing the stability and safety of the connection. It should be noted that the support assemblies 1 on the crossbeams 102 are spaced apart along the second direction and detachably connected to the crossbeams 102. Furthermore, in the support assemblies 1 on the crossbeams 102, the connecting bracket 11 is adjustable relative to the longitudinal beam 101 in a third direction, and the adapter bracket 12 is adjustable relative to the connecting bracket 11 in a first direction. The adjustment principle is the same as that of the support assemblies 1 on the longitudinal beams 101, and will not be elaborated further here.

[0042] Reference Figure 2 The connecting bracket 11 includes a first connecting portion 111 and a second connecting portion 112. The first connecting portion 111 is provided with a first connecting hole 1111, and the longitudinal beam 101 is provided with a beam connecting hole 1011. The battery mounting device also includes a first connector, which can pass through the first connecting hole 1111 and the beam connecting hole 1011 to achieve the connection between the connecting bracket 11 and the longitudinal beam 101. The first connecting hole 1111 and the beam connecting hole 1011 can both be threaded holes, and the first connector is a screw. The first connector passes through the first connecting hole 1111 and the beam connecting hole 1011 and is directly threaded to the first connecting portion 111 and the longitudinal beam 101, achieving a detachable connection and simple installation steps.

[0043] Furthermore, multiple first connecting holes 1111 are provided, and these multiple first connecting holes 1111 are spaced apart along a third direction. Multiple beam connecting holes 1011 are also provided, and these beam connecting holes 1011 are spaced apart along a third direction. Each first connecting hole 1111 can connect with different beam connecting holes 1011, or each beam connecting hole 1011 can connect with different first connecting holes 1111, thereby achieving adjustable position of the first connecting part 111 relative to the longitudinal beam 101 along a third direction. In other words, by combining and connecting different positions of the multiple first connecting holes 1111 and the multiple beam connecting holes 1011, the position of the first connecting part 111 relative to the longitudinal beam 101 in a third direction is made adjustable. Understandably, when downward adjustment of the connecting bracket 11 is required, one or more first connecting holes 1111 on the first connecting part 111 can be selected and aligned with the beam connecting hole 1011 located at the lower part of the longitudinal beam 101 along the third direction. This allows downward adjustment of the connecting bracket 11. Alternatively, one or more beam connecting holes 1011 on the longitudinal beam 101 can be selected and aligned with the first connecting hole 1111 located at the upper part of the first connecting part 111. This also allows downward adjustment of the connecting bracket 11. When upward adjustment of the connecting bracket 11 is required, the operation is reversed.

[0044] The first connecting part 111 extends along a third direction, and the second connecting part 112 extends along a second direction. A first reinforcing rib 113 is provided between the first connecting part 111 and the second connecting part 112 to ensure the connection strength between the first connecting part 111 and the second connecting part 112, thereby ensuring the overall strength of the connecting bracket 11.

[0045] Additionally, refer to Figure 3 The adapter bracket 12 includes a third connecting portion 121 and a fourth connecting portion 122. A second connecting hole 1121 is provided on the second connecting portion 112, and a third connecting hole 1211 is provided on the third connecting portion 121. The bracket assembly 1 also includes a second connector, which passes through the second connecting hole 1121 and the third connecting hole 1211 to connect the adapter bracket 11 and the adapter bracket 12. Both the second connecting hole 1121 and the third connecting hole 1211 can be threaded holes, and the second connector is a screw. The second connector passes through the second connecting hole 1121 and the third connecting hole 1211 and is directly threaded to the second connecting portion 112 and the third connecting portion 121, simplifying the connection process.

[0046] Furthermore, multiple second connecting holes 1121 are provided, and these multiple second connecting holes 1121 are spaced apart along the second direction. Multiple third connecting holes 1211 are also provided, and these multiple third connecting holes 1211 are spaced apart along the second direction. Each third connecting hole 1211 can mate with different second connecting holes 1121, or each second connecting hole 1121 can mate with different third connecting holes 1211, thereby enabling the third connecting part 121 to be adjustable relative to the second connecting part 112 along the second direction. In other words, by combining and mateing different positions of the multiple second connecting holes 1121 and the multiple third connecting holes 1211, the position of the second connecting part 112 relative to the second connecting part 112 in the second direction is made adjustable. When the adapter bracket 12 needs to be adjusted outward, i.e., when the adapter bracket 12 needs to be adjusted away from the adapter bracket 12 on another longitudinal beam 101, one or more second connecting holes 1121 on the second connecting part 112 can be selected and aligned with the third connecting hole 1211 on the third connecting part 121 along the second direction towards the inside. This will allow the adapter bracket 12 to be adjusted outward. Alternatively, one or more third connecting holes 1211 on the third connecting part 121 can be selected and aligned with the second connecting hole 1121 on the second connecting part 112 along the second direction towards the outside. This will also allow the adapter bracket 12 to be adjusted outward. When the adapter bracket 12 needs to be adjusted inward, i.e., when the adapter bracket 12 needs to be adjusted towards the adapter bracket 12 on another longitudinal beam 101, the operation is reversed.

[0047] The third connecting part 121 extends along the second direction, and the fourth connecting part 122 extends along the third direction. A second reinforcing rib 123 is provided between the third connecting part 121 and the fourth connecting part 122 to ensure the connection strength between the third connecting part 121 and the fourth connecting part 122, thereby ensuring the overall strength of the adapter bracket 12.

[0048] The fourth connecting part 122 is provided with a fourth connecting hole 1221, and the side wall of the battery 20 is provided with a connecting groove. The battery mounting device also includes a third connector, which can pass through the fourth connecting hole 1221 and the connecting groove to realize the connection between the adapter bracket 12 and the battery 20. The fourth connecting hole 1221 can be a threaded hole, and the groove wall of the connecting groove is provided with threads. The third connector is a bolt, which can pass through the fourth connecting hole 1221 and the connecting groove to be threadedly connected to the fourth connecting part 122 and the side wall of the battery 20, resulting in high installation efficiency.

[0049] On the other hand, this utility model also proposes a chassis, including a chassis frame 10 and the aforementioned battery mounting device. The battery mounting device is connected to the chassis frame 10. This chassis can install batteries 20 of different models, has high versatility, and has high installation efficiency.

[0050] On the other hand, this utility model also proposes an unmanned vehicle, including the aforementioned chassis, which can be equipped with different types of batteries 20 and has high versatility.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery mounting device connected to a vehicle chassis frame (10), the chassis frame (10) comprising two longitudinal beams (101) extending in a first direction, and the two longitudinal beams (101) being spaced apart in a second direction, characterized in that, The battery mounting device includes: A bracket assembly (1) is used to mount the battery (20) on the chassis frame (10). At least two bracket assemblies (1) are detachably connected to each of the longitudinal beams (101), and the at least two bracket assemblies (1) are spaced apart along the first direction. Each bracket assembly (1) includes a connecting bracket (11) and an adapter bracket (12) that are connected to each other. The connecting bracket (11) is used to connect to the longitudinal beam (101), and the connecting bracket (11) is adjustable relative to the longitudinal beam (101) along a third direction. The adapter bracket (12) is used to connect to the battery (20), and the adapter bracket (12) is adjustable relative to the connecting bracket (11) along a second direction. Wherein, the first direction and the second direction are set at an angle, and the third direction is set at an angle to the plane containing the first direction and the second direction.

2. The battery mounting device according to claim 1, characterized in that, The connecting bracket (11) includes a first connecting part (111) and a second connecting part (112). The first connecting part (111) is provided with a first connecting hole (1111). The longitudinal beam (101) is provided with a beam connecting hole (1011). The battery mounting device also includes a first connector. The first connector can pass through the first connecting hole (1111) and the beam connecting hole (1011) to realize the connection between the connecting bracket (11) and the longitudinal beam (101).

3. The battery mounting device according to claim 2, characterized in that, Multiple first connecting holes (1111) are provided, and the multiple first connecting holes (1111) are spaced apart along the third direction. Multiple beam connecting holes (1011) are also provided, and the beam connecting holes (1011) are spaced apart along the third direction. Each of the first connecting holes (1111) can be connected to different beam connecting holes (1011), or each of the beam connecting holes (1011) can be connected to different first connecting holes (1111) to make the position of the first connecting part (111) relative to the longitudinal beam (101) along the third direction adjustable.

4. The battery mounting device according to claim 2, characterized in that, The first connecting portion (111) extends along the third direction, the second connecting portion (112) extends along the second direction, and a first reinforcing rib (113) is provided between the first connecting portion (111) and the second connecting portion (112).

5. The battery mounting device according to claim 2, characterized in that, The adapter bracket (12) includes a third connecting part (121) and a fourth connecting part (122). The second connecting part (112) is provided with a second connecting hole (1121), and the third connecting part (121) is provided with a third connecting hole (1211). The bracket assembly (1) also includes a second connector, which can pass through the second connecting hole (1121) and the third connecting hole (1211) to realize the connection between the connecting bracket (11) and the adapter bracket (12).

6. The battery mounting device according to claim 5, characterized in that, The second connecting hole (1121) is provided in multiple ways, and the multiple second connecting holes (1121) are spaced apart along the second direction; the third connecting hole (1211) is provided in multiple ways, and the multiple third connecting holes (1211) are spaced apart along the second direction. Each of the third connecting holes (1211) can mate with different second connecting holes (1121), or each of the second connecting holes (1121) can mate with different third connecting holes (1211) to make the position of the third connecting part (121) relative to the second connecting part (112) adjustable in the second direction.

7. The battery mounting device according to claim 5, characterized in that, The third connecting portion (121) extends along the second direction, the fourth connecting portion (122) extends along the third direction, and a second reinforcing rib (123) is provided between the third connecting portion (121) and the fourth connecting portion (122).

8. The battery mounting device according to claim 5, characterized in that, The fourth connecting part (122) is provided with a fourth connecting hole (1221), and the side wall of the battery (20) is provided with a connecting groove. The battery mounting device also includes a third connecting member, which can pass through the fourth connecting hole (1221) and the connecting groove to realize the connection between the adapter bracket (12) and the battery (20).

9. A chassis, characterized in that, It includes a chassis frame (10) and a battery mounting device as described in any one of claims 1-8, the battery mounting device being connected to the chassis frame (10).

10. An unmanned vehicle, characterized in that, Includes the chassis as described in claim 9.

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