A power battery fixing device of an unmanned delivery vehicle

Abstract

The utility model relates to unmanned delivery vehicle technical field especially a kind of power battery fixing device of unmanned delivery vehicle, the device includes the battery fixing frame fixedly connected with unmanned delivery vehicle main skeleton, battery fixing frame is set and forms rectangular battery accommodating cavity in middle portion, and power battery is placed in the cavity;The side wall of power battery is respectively equipped with assembly component, and assembly component includes the lower mounting plate fixed in the lower end surface of battery, the side connecting plate with first connecting part and second connecting part and the mounting lug fixed on the upper end of first connecting part, first connecting part is fixed with battery side wall, second connecting part is overlapped with lower mounting plate and the fixed connecting hole of mutually fitting is arranged in both, battery fixing frame is equipped with the mounting hole of fitting with fixed connecting hole, and the inclined support part between first, second connecting part is arranged to form triangular support structure, and fixed connecting hole is waist round hole.This device improves the stability of battery fixation and assembly convenience, strong adaptability, guarantees the safe operation of unmanned delivery vehicle.

Description

Technical Field

[0001] This utility model relates to the field of unmanned delivery vehicle technology, and in particular to a power battery fixing device for unmanned delivery vehicles. Background Technology

[0002] With the intelligent upgrading of the logistics industry, unmanned delivery vehicles, with their advantages of high efficiency, low cost, and all-weather operation, are gradually becoming an important carrier for last-mile delivery in cities. As the core power source of unmanned delivery vehicles, the installation stability of the power battery directly affects the vehicle's range, driving safety, and ease of maintenance. Currently, the power battery mounting devices for unmanned delivery vehicles generally suffer from the following technical challenges:

[0003] Insufficient stability of the fixed structure: Existing devices mostly use simple metal frame wrapping or single bolt fixing. During vehicle operation, the vibration and impact generated by bumpy road surfaces can easily cause relative displacement between the power battery and the fixed frame. Long-term use may cause loose battery wiring, shell wear, and even short circuits, leakage and other safety hazards.

[0004] Poor assembly and maintenance convenience: Traditional fixed structures often require workers to disassemble multiple sets of bolts one by one to complete the installation or replacement of the power battery. The operation steps are cumbersome and time-consuming. Especially during peak logistics and delivery periods, this will seriously affect the operating efficiency of unmanned delivery vehicles. Some devices lack dedicated hoisting auxiliary structures, making them prone to bumps and knocks during the handling of power batteries, increasing maintenance costs.

[0005] Conflict between structural adaptability and strength: In order to adapt to power batteries of different capacities, some fixed frames are designed as adjustable structures, but after adjustment, the overall strength of the frame often decreases; while the integrated frame that focuses on strength cannot flexibly adapt to batteries of different specifications, making it difficult to meet the diverse power configuration requirements of unmanned delivery vehicles.

[0006] The problem of stress concentration is prominent: the power battery generates a certain amount of heat during charging and discharging, and the vibration of the vehicle during driving will cause stress concentration at the fixed connection parts. The existing device lacks an effective stress dispersion structure, which can easily lead to fatigue damage of the connection parts and shorten the service life of the fixed device after long-term use.

[0007] Therefore, there is an urgent need for a power battery fixing device that is structurally stable, easy to assemble, has reliable strength, and is highly adaptable, in order to solve the above-mentioned problems in the existing technology, ensure the safe and stable operation of unmanned delivery vehicles, and improve their operation and maintenance efficiency. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a power battery fixing device for an unmanned delivery vehicle, the specific technical solution of which is as follows:

[0009] A power battery fixing device for an unmanned delivery vehicle, wherein the power battery is mounted on the main frame of the unmanned delivery vehicle, including a battery fixing frame, the battery fixing frame being fixedly connected to the main frame of the unmanned delivery vehicle, the battery fixing frame being U-shaped, the middle part of the battery fixing frame forming a rectangular battery receiving cavity, the power battery being placed in the battery receiving cavity, and an assembly component being provided on each of the two side walls of the power battery, the assembly component including a lower mounting plate, a side connecting plate, and a mounting ear, the lower mounting plate being fixedly mounted on the lower end face of the power battery, the side connecting plate having a first connecting part on its upper side, the first connecting part being fixedly connected to the side wall of the power battery, the mounting ear being fixedly mounted on the upper end of the first connecting part, the side connecting plate having a second connecting part on its lower side, the second connecting part overlapping the lower mounting plate, the lower mounting plate and the second connecting part having a plurality of mutually fitting fixing connection holes, the battery fixing frame having a plurality of mounting holes mutually fitting the fixing connection holes, bolts passing through the fixing connection holes and being fixedly connected to the mounting holes.

[0010] Preferably, the mounting ear is bent downwards to form a hook with an opening facing downwards.

[0011] Preferably, each of the assembly components is provided with two mounting ears, which are set at the same height.

[0012] Preferably, the upper end of the mounting ear is provided with a reinforcing member, the side end of the reinforcing member is fixedly mounted on the outer side wall of the power battery, and the lower end face of the reinforcing member is fixedly connected to the mounting ear.

[0013] Preferably, an inclined support is provided between the first connecting part and the second connecting part, and the inclined support, the lower mounting plate and the outer wall of the power battery form a triangular support structure.

[0014] Preferably, the fixing connection hole is an oblong hole.

[0015] Preferably, the battery fixing frame includes a side fixing frame, a front fixing frame, and a rear fixing frame. The front fixing frame and the rear fixing frame are arranged parallel to each other. Two side fixing frames are provided, and the two sides of the side fixing frames are arranged parallel to each other. The two ends of the side fixing frames are fixedly connected to the side fixing frame and the front fixing frame, respectively. The assembly component is fixedly connected to the two side fixing frames.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Firstly, this solution employs a dual-fixing structure of "battery fixing frame + dual-side assembly components." The battery fixing frame encloses the power battery in a U-shape, while the dual-side assembly components achieve comprehensive fixation of the power battery to the frame through multiple connections via the lower mounting plate and side connecting plates. This effectively suppresses relative displacement of the battery during vehicle operation, preventing issues such as loose wiring and casing wear. The inclined support, together with the lower mounting plate and battery sidewalls, forms a triangular support structure. Utilizing the stability characteristics of triangles, this significantly enhances the load-bearing strength of the side connecting plates, disperses stress generated by vibration, and reduces the risk of fatigue damage to connecting components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the power battery mounting device for this unmanned delivery vehicle;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the power battery mounting device of this unmanned delivery vehicle;

[0020] Figure 3 This is a side view of the battery mounting device for this unmanned delivery vehicle;

[0021] Figure 4 yes Figure 3 A magnified structural diagram of point A in the middle.

[0022] Reference numerals: 1. Power battery; 2. Battery fixing frame; 21. Side fixing frame; 22. Front fixing frame; 23. Rear fixing frame; 3. Battery receiving cavity; 4. Assembly assembly; 41. Lower mounting plate; 42. Side connecting plate; 42. First connecting part; 421. Second connecting part; 422. Mounting ear; 43. Fixing connection hole; 44. Reinforcing member; 45. Inclined support part; 46. Detailed Implementation

[0023] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0024] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0025] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0027] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0028] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0030] like Figures 1 to 4As shown, a power battery fixing device for an unmanned delivery vehicle is disclosed. The power battery 1 is mounted on the main frame of the unmanned delivery vehicle and includes a battery fixing frame 2. The battery fixing frame 2 is fixedly connected to the main frame of the unmanned delivery vehicle. The battery fixing frame 2 is U-shaped, and the middle part of the battery fixing frame 2 forms a rectangular battery receiving cavity 3. The power battery 1 is placed in the battery receiving cavity 3. The battery fixing frame 2 is fixedly connected to the power battery 1, thereby realizing the fixed installation of the power battery 1.

[0031] Each of the two side walls of the power battery 1 is provided with an assembly component 4. The assembly component 4 is used to connect the battery fixing frame 2 and the power battery 1. The assembly component 4 includes a lower mounting plate 41, a side connecting plate 42, and a mounting ear 43. The lower mounting plate 41 is fixedly installed on the lower end face of the power battery 1. The side connecting plate 42 has a first connecting part 421 on its upper side. The first connecting part 421 is fixedly connected to the side wall of the power battery 1. The mounting ear 43 is fixedly installed on the upper end of the first connecting part 421. The mounting ear 43 can be used for the assembly operation of the power battery 1. The power battery 1 can be lifted into the battery fixing frame 2 by a hoisting machine for installation. At the same time, the mounting ear 43 is provided in the structure of the vehicle body. The three fitting fixing claws further fix the power battery 1. The side connecting plate 42 and the lower side are provided with a second connecting part 422. The second connecting part 422 overlaps with the lower mounting plate 41. The lower mounting plate 41 and the second connecting part 422 are provided with a plurality of mutually fitting fixing connecting holes 44. The battery fixing frame 2 is provided with mounting holes that fit with the fixing connecting holes 44. Bolts pass through the fixing connecting holes 44 and are fixedly connected to the mounting holes. During assembly, the power battery 1 and the battery fixing frame 2 are fixedly installed by bolts passing through the mounting holes on the battery fixing frame 2, the fixing connecting holes 44 on the lower mounting plate 41 and the fixing connecting holes 44 on the second connecting part 422.

[0032] In some embodiments, the mounting ear 43 is bent downwards to form a hook with an opening facing downwards, which facilitates the hoisting of the power battery 1 during assembly. It can also cooperate with the fixing claw with an opening facing upwards to fit into the mounting ear 43 and realize the installation of the power battery 1.

[0033] In some embodiments, each of the assembly components 4 is provided with two mounting ears 43, and the two mounting ears 43 are set at the same height, so as to balance the pressure of the power battery 1 and improve the stability of the power battery 1 during hoisting.

[0034] In some embodiments, a reinforcing member 45 is provided at the upper end of the mounting ear 43. The side end of the reinforcing member 45 is fixedly installed on the outer side wall of the power battery 1, and the lower end face of the reinforcing member 45 is fixedly connected to the mounting ear 43. The structural strength of the mounting ear 43 is increased by the reinforcing member 45, thereby improving the hoisting stability and installation stability of the power battery 1.

[0035] In some embodiments, an inclined support portion 46 is provided between the first connecting portion 421 and the second connecting portion 422. The inclined support portion 46, the lower mounting plate 41, and the outer side wall of the power battery 1 form a triangular support structure. The inclined support portion 46 can increase the strength of the assembly structure between the side connecting plate 42 and the power battery 1.

[0036] In some embodiments, the fixing connection hole 44 is an oblong hole, which can improve the convenience for workers when assembling and fixing the power battery 1.

[0037] In some embodiments, the battery fixing frame 2 includes a side fixing frame 21, a front fixing frame 22, and a rear fixing frame 23. The front fixing frame 22 and the rear fixing frame 23 are arranged parallel to each other. Two side fixing frames 21 are provided, and the two side fixing frames 21 are arranged parallel to each other. The two ends of the side fixing frames 21 are fixedly connected to the side fixing frame 21 and the front fixing frame 22, respectively. The assembly assembly 4 is fixedly connected to the two side fixing frames 21.

[0038] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A power battery fixing device for an unmanned delivery vehicle, wherein the power battery (1) is mounted on the main frame of the unmanned delivery vehicle, characterized in that, The system includes a battery mounting frame (2), which is fixedly connected to the main frame of the unmanned delivery vehicle. The battery mounting frame (2) is U-shaped, and the middle part of the battery mounting frame (2) forms a rectangular battery receiving cavity (3). The power battery (1) is placed in the battery receiving cavity (3). An assembly component (4) is provided on each of the two side walls of the power battery (1). The assembly component (4) includes a lower mounting plate (41), a side connecting plate (42), and a mounting ear (43). The lower mounting plate (41) is fixedly installed on the lower end face of the power battery (1). The side connecting plate (42) is connected to the upper side with a first... The first connecting part (421) is fixedly connected to the side wall of the power battery (1). The mounting ear (43) is fixedly installed on the upper end of the first connecting part (421). The side connecting plate (42) and the lower side are provided with a second connecting part (422). The second connecting part (422) overlaps with the lower mounting plate (41). The lower mounting plate (41) and the second connecting part (422) are provided with a plurality of fixed connecting holes (44) that fit each other. The battery fixing frame (2) is provided with a plurality of mounting holes that fit each other with the fixed connecting holes (44). The bolt passes through the fixed connecting holes (44) and is fixedly connected to the mounting holes.

2. The power battery fixing device for the unmanned delivery vehicle according to claim 1, characterized in that, The mounting ear (43) is bent downwards to form a hook with an opening facing downwards.

3. The power battery fixing device for the unmanned delivery vehicle according to claim 1, characterized in that, Each of the assembly components (4) is provided with two mounting ears (43), and the two mounting ears (43) are set at the same height.

4. The power battery fixing device for the unmanned delivery vehicle according to claim 1, characterized in that, The upper end of the mounting ear (43) is provided with a reinforcing member (45), the side end of the reinforcing member (45) is fixedly installed on the outer side wall of the power battery (1), and the lower end face of the reinforcing member (45) is fixedly connected to the mounting ear (43).

5. The power battery fixing device for the unmanned delivery vehicle according to claim 1, characterized in that, An inclined support (46) is provided between the first connecting part (421) and the second connecting part (422). The inclined support (46), the lower mounting plate (41) and the outer wall of the power battery (1) form a triangular support structure.

6. The power battery fixing device for the unmanned delivery vehicle according to claim 1, characterized in that, The fixed connection hole (44) is an oval hole.

7. The power battery fixing device for the unmanned delivery vehicle according to claim 1, characterized in that, The battery fixing frame (2) includes a side fixing frame (21), a front fixing frame (22) and a rear fixing frame (23). The front fixing frame (22) and the rear fixing frame (23) are arranged parallel to each other. Two side fixing frames (21) are provided. The two side fixing frames (21) are arranged parallel to each other and the two ends of the side fixing frames (21) are fixedly connected to the side fixing frame (21) and the front fixing frame (22) respectively. The assembly component (4) is fixedly connected to the two side fixing frames (21).

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