Power battery pack and pure electric all-terrain vehicle

Abstract

The utility model relates to the technical field of all-terrain vehicle battery packs, and particularly discloses a power battery pack and a pure electric all-terrain vehicle, the power battery pack comprises a battery pack body, the battery pack body comprises a lower box body and an upper cover installed at the upper end of the lower box body, two sides of the lower box body are connected with side beams, hoisting holes are formed in the side beams, and the hoisting holes are connected with the battery pack body. A plurality of groups of connecting pieces are arranged at the front and rear ends of the lower box body; an open slot is formed in the lower end of the lower box body; the U-shaped groove design at the bottom of the battery pack lower box body can solve the space occupation problem that a transmission shaft of a pure electric all-terrain vehicle penetrates through the whole chassis; the whole vehicle frame and the seat bracket of the pure electric all-terrain vehicle are designed to be detachable, so that the whole battery pack is convenient to mount and dismount, and the maintainability is very good; the pure electric all-terrain vehicle adopts the lithium ion battery, so that the problem of environmental pollution caused by emission of a traditional internal combustion engine type all-terrain vehicle can be solved, the problems of low specific energy, short driving mileage, long charging time, short cycle life and the like of a lead-acid battery can also be solved, and environmental protection is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of all-terrain vehicle battery packs, and specifically relates to a power battery pack and a pure electric all-terrain vehicle. Background Art

[0002] As a special vehicle that integrates practicality, entertainment, and sports, all-terrain vehicles can be driven on a variety of complex roads such as beaches, grasslands, mountain roads, and tourist attractions. Because it is suitable for different terrains, has strong flexibility, and is widely used, it is currently mainly used in many fields such as outdoor operations (agriculture, animal husbandry, forestry, hunting, landscaping, exploration, industry, construction, etc.), sports and leisure, fire patrols, and military defense. With the popularization and deepening of the concept of low-carbon environmental protection and green travel, vehicles powered by new energy are becoming more and more popular. With the increasing prominence of problems such as high fuel consumption and serious air pollution of traditional fuel all-terrain vehicles, in order to protect the environment and promote the promotion and application of all-terrain vehicles in outdoor operations, sports and leisure, fire patrols, etc., new energy pure electric all-terrain vehicles will also become a trend in the new era. Traditional electric all-terrain vehicles use lead-acid batteries as power, which have low specific energy, short driving range, long charging time, and short cycle life. Lead is a heavy metal that pollutes the environment. In addition, the installation position of the battery pack is often set higher to avoid the drive shaft, which affects the driving space and is not easy to install and disassemble, which brings inconvenience to use. Utility Model Content

[0003] The purpose of the utility model is to provide a power battery pack and a pure electric all-terrain vehicle to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A power battery pack and a pure electric all-terrain vehicle, comprising:

[0006] The battery pack body includes a lower box body and an upper cover installed on the upper end of the lower box body, the lower box body and the upper cover are detachably connected, both sides of the lower box body are connected to side beams, and lifting holes are provided inside the side beams, which is conducive to lifting the battery pack body, and the front and rear ends of the lower box body are provided with several groups of connecting parts for installing the battery pack on an all-terrain vehicle. The lower end of the lower box body is provided with an open groove, which is conducive to the transmission shaft passing through the open groove and running through the entire battery pack, which can reduce the overall height of the battery pack and reduce space occupancy.

[0007] Preferably, the opening groove is set to be U-shaped, which is conducive to the transmission shaft passing through the opening groove and penetrating the entire battery pack, so that the rear drive motor of the all-terrain vehicle outputs power to the front wheel through the transmission shaft. This structure can significantly reduce the overall height of the battery pack, make full use of the space at the bottom of the all-terrain vehicle seat, and can well solve the problem of space occupation by the all-terrain vehicle transmission shaft passing through the entire chassis.

[0008] Preferably, the lower box body comprises a frame shell and a bottom plate, the lower end of the frame shell is connected to the bottom plate, so that the lower box body forms a box body with an upward opening, and the frame shell is set as a rectangular frame plate;

[0009] A connecting longitudinal beam is provided inside the frame shell, and the bottom plate is provided in two groups. The two groups of bottom plates are connected by the connecting longitudinal beam. The connecting longitudinal beam is provided in a U-shape, which is conducive to corresponding to the opening groove, facilitating the transmission shaft to pass through, thereby reducing the overall height of the battery pack.

[0010] Preferably, a plurality of groups of reinforcing members arranged in a crisscross pattern are provided inside the frame shell, which can be used to strengthen the strength of the frame shell and improve the stability. The reinforcing members may be reinforcing rods or reinforcing plates.

[0011] Preferably, the connecting member is configured as a mounting hanging point, and a mounting hole is provided inside the mounting hanging point, which is conducive to installing the lower box on the all-terrain vehicle through the mounting hanging point, and is convenient for installation or disassembly.

[0012] Preferably, a lifting sleeve is installed inside the lifting hole, and the provided lifting sleeve is conducive to lifting the lower box body for installation or disassembly.

[0013] Preferably, a water inlet, a water outlet, a high-pressure connector and a low-pressure connector are sequentially arranged at the front end of the lower box body, and a switch and an explosion-proof valve are also arranged at the front end of the lower box body.

[0014] Preferably, a pure electric all-terrain vehicle comprises the power battery pack described above;

[0015] The vehicle frame also includes a seat bracket installed at the middle upper end of the frame by bolts, and the bolt installation makes it easy to install or disassemble. The battery pack body is installed on the upper end of the frame by installing bolts, and the battery pack body is located below the seat bracket. A driving motor is installed at the rear of the frame. A transmission shaft is also provided on the frame, and the transmission shaft passes through the lower end of the battery pack body. An open groove matching the transmission shaft is provided at the lower end of the battery pack body to facilitate the transmission shaft to pass through, thereby reducing the overall height of the battery pack and reducing space occupancy.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The U-shaped groove design at the bottom of the battery pack lower box can better solve the problem of space occupation by the drive shaft of the pure electric all-terrain vehicle running through the entire chassis, thereby maximizing the space utilization of the entire vehicle.

[0018] 2. The frame and seat bracket of the pure electric all-terrain vehicle are designed to be detachable, which is convenient for the overall installation and disassembly of the battery pack and has good maintainability.

[0019] 3. The battery pack body adopts a double-layer battery module + liquid cooling plate layout, which can increase the battery pack capacity within a limited space while making the battery pack have better environmental adaptability to meet the user's requirements for long driving range on various complex road surfaces such as beaches, grasslands, mountain roads, and tourist attractions.

[0020] 4. The use of lithium-ion batteries in pure electric all-terrain vehicles can not only solve the environmental pollution problem caused by emissions from traditional internal combustion engine all-terrain vehicles, but also solve the problems of low energy density, short driving range, long charging time, and short cycle life of lead-acid batteries, which is beneficial to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 3 It is an enlarged schematic diagram of the lower box of the utility model;

[0024] Figure 4 It is a schematic diagram of the partial internal structure of the frame shell of the utility model;

[0025] Figure 5 It is an enlarged schematic diagram of the installation and hanging point of the utility model;

[0026] Figure 6 It is an enlarged schematic diagram of the lifting sleeve of the utility model;

[0027] Figure 7 It is an enlarged schematic diagram of the connecting longitudinal beam of the utility model;

[0028] Figure 8 It is an enlarged schematic diagram of the seat bracket of the utility model;

[0029] Fig. 9 It is a schematic diagram of the overall structure of the all-terrain vehicle of the utility model;

[0030] In the figure: 1. Upper cover; 2. Lower box; 3. Switch; 4. Explosion-proof valve; 5. Water inlet; 6. Water outlet; 7. High-voltage connector; 8. Low-voltage connector; 9. Installation hanging point; 10. Lifting hole;

[0031] 20. Frame shell; 21. Bottom plate; 22. Connecting longitudinal beam; 23. Side beam; 24. Lifting sleeve; 25. Opening slot;

[0032] 30. Battery pack body; 31. Vehicle frame; 32. Seat bracket; 33. Drive motor; 34. Mounting bolts; 35. Drive shaft. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example:

[0035] See also Figure 1-Figure 9 As shown, a power battery pack includes:

[0036] The battery pack body 30 includes a lower box body 2 and an upper cover 1 installed on the upper end of the lower box body 2. The lower box body 2 and the upper cover 1 are detachably connected. Side beams 23 are connected to both sides of the lower box body 2. Lifting holes 10 are provided inside the side beams 23, which are conducive to lifting the battery pack body 30. Several groups of connecting parts are provided at the front and rear ends of the lower box body 2 for installing the battery pack on an all-terrain vehicle. An opening groove 25 is provided at the lower end of the lower box body 2, which is conducive to the transmission shaft 35 passing through the opening groove 25 and running through the entire battery pack, which can reduce the overall height of the battery pack and reduce space occupancy.

[0037] refer to Figure 1-Figure 9 As shown, the opening slot 25 is set to a U-shape, which is conducive to the transmission shaft 35 passing through the opening slot 25 and penetrating the entire battery pack, so that the rear drive motor 33 of the all-terrain vehicle outputs power to the front wheel through the transmission shaft 35. This structure can significantly reduce the overall height of the battery pack, make full use of the space at the bottom of the all-terrain vehicle seat, and can well solve the problem of space occupation by the all-terrain vehicle transmission shaft 35 running through the entire chassis.

[0038] refer to Figure 1-Figure 9 As shown, the lower box body 2 includes a frame shell 20 and a bottom plate 21. The lower end of the frame shell 20 is connected to the bottom plate 21, so that the lower box body 2 forms a box body with an upward opening. The frame shell 20 is set as a rectangular frame plate;

[0039] A connecting longitudinal beam 22 is provided inside the frame shell 20, and the bottom plate 21 is arranged in two groups. The two groups of bottom plates 21 are connected by the connecting longitudinal beam 22. The connecting longitudinal beam 22 is arranged in a U shape, which is conducive to corresponding to the opening groove 25, facilitating the transmission shaft 35 to pass through, thereby reducing the overall height of the battery pack.

[0040] refer to Figure 1-Figure 9 As shown, a plurality of groups of reinforcing members arranged in a crisscross pattern are arranged inside the frame shell 20, which can be used to strengthen the strength of the frame shell 20 and improve the stability. The reinforcing members can be reinforcing rods or reinforcing plates.

[0041] refer to Figure 1-Figure 9 As shown, the connecting piece is configured as a mounting hanging point 9, and a mounting hole is provided inside the mounting hanging point 9, which is convenient for mounting the lower box 2 on the all-terrain vehicle through the mounting hanging point 9, and is convenient for installation or disassembly.

[0042] refer to Figure 1-Figure 9 As shown, a lifting sleeve 24 is installed inside the lifting hole 10, and the provision of the lifting sleeve 24 is conducive to lifting the lower box body 2 for installation or removal.

[0043] refer to Figure 1-Figure 9 As shown, the front end of the lower box body 2 is sequentially provided with a water inlet 5, a water outlet 6, a high-pressure connector 7 and a low-pressure connector 8, and the front end of the lower box body 2 is also provided with a switch 3 and an explosion-proof valve 4.

[0044] Furthermore, the battery pack body 30 adopts a double-layer battery module + liquid cooling plate arrangement, which can increase the battery pack capacity within a limited space while making the battery pack have better environmental adaptability to meet the user's requirements for long driving range on a variety of complex road surfaces such as beaches, grasslands, mountain roads, and tourist attractions.

[0045] Furthermore, lithium-ion batteries are installed inside the power battery pack, which can solve the environmental pollution problem caused by emissions from traditional internal combustion engine all-terrain vehicles, and can also solve the problems of low energy density, short driving range, long charging time, and short cycle life of lead-acid batteries, which is beneficial to environmental protection.

[0046] refer to Figure 1-Figure 9 As shown, a pure electric all-terrain vehicle comprises the above-mentioned power battery pack;

[0047] The vehicle frame 31 also includes a vehicle frame 31, a seat bracket 32 ​​is installed at the middle upper end of the vehicle frame 31 by bolts, and the bolt installation makes it easy to install or disassemble. The battery pack body 30 is installed at the upper end of the vehicle frame 31 by installing bolts 34. The battery pack body 30 is located below the seat bracket 32. A driving motor 33 is installed at the rear of the vehicle frame 31. A transmission shaft 35 is also provided on the vehicle frame 31. The transmission shaft 35 passes through the lower end of the battery pack body 30. An opening groove 25 matching the transmission shaft 35 is provided at the lower end of the battery pack body 30 to facilitate the transmission shaft 35 to pass through, thereby reducing the overall height of the battery pack and reducing space occupancy. The upper end of the vehicle frame 31 is also connected to a roll cage by bolts, and the bolt connection is used to facilitate installation and disassembly.

[0048] 1. The U-shaped groove design at the bottom of the battery pack lower box 2 can better solve the problem of space occupation by the pure electric all-terrain vehicle drive shaft 35 running through the entire chassis, thereby maximizing the space utilization of the entire vehicle.

[0049] 2. The vehicle frame 31 and the seat bracket 32 ​​of the pure electric all-terrain vehicle are designed to be detachable, which is convenient for the overall installation and removal of the battery pack and has good maintainability.

[0050] 3. The battery pack body 30 is arranged with a double-layer battery module + liquid cooling plate, which can increase the battery pack capacity within a limited space while making the battery pack have better environmental adaptability to meet the user's requirements for long driving range on various complex road surfaces such as beaches, grasslands, mountain roads, and tourist attractions.

[0051] 4. The use of lithium-ion batteries in pure electric all-terrain vehicles can not only solve the environmental pollution problem caused by emissions from traditional internal combustion engine all-terrain vehicles, but also solve the problems of low energy density, short driving range, long charging time, and short cycle life of lead-acid batteries, which is beneficial to environmental protection.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A power battery pack, characterized in that: include: A battery pack body (30), the battery pack body (30) comprising a lower box body (2) and an upper cover (1) mounted on the upper end of the lower box body (2), the lower box body (2) and the upper cover (1) being detachably connected, both sides of the lower box body (2) being connected to side beams (23), the inside of the side beams (23) being provided with lifting holes (10), the front and rear ends of the lower box body (2) being provided with a plurality of groups of connecting parts, and the lower end of the lower box body (2) being provided with an open groove (25).

2. A power battery pack according to claim 1, characterized in that: The opening groove (25) is configured to be U-shaped.

3. A power battery pack according to claim 2, characterized in that: The lower box body (2) comprises a frame shell (20) and a bottom plate (21), and the bottom plate (21) is connected to the lower end of the frame shell (20); A connecting longitudinal beam (22) is arranged inside the frame shell (20), the bottom plate (21) is arranged in two groups, the two groups of bottom plates (21) are connected by the connecting longitudinal beam (22), and the connecting longitudinal beam (22) is arranged in a U shape.

4. A power battery pack according to claim 3, characterized in that: A plurality of groups of reinforcing members arranged in a crisscross pattern are arranged inside the frame shell (20).

5. A power battery pack according to claim 4, characterized in that: The connecting piece is arranged as a mounting hanging point (9), and a mounting hole is arranged inside the mounting hanging point (9).

6. A power battery pack according to claim 5, characterized in that: A lifting sleeve (24) is installed inside the lifting hole (10).

7. A power battery pack according to claim 6, characterized in that: The front end of the lower box body (2) is provided with a water inlet (5), a water outlet (6), a high-pressure connector (7) and a low-pressure connector (8) in sequence, and the front end of the lower box body (2) is also provided with a switch (3) and an explosion-proof valve (4).

8. A pure electric all-terrain vehicle, characterized in that: A power battery pack comprising any one of claims 1 to 7; The vehicle also includes a frame (31), a seat bracket (32) is installed at the middle upper end of the frame (31) by bolts, the battery pack body (30) is installed at the upper end of the frame (31) by mounting bolts (34), the battery pack body (30) is located below the seat bracket (32), a drive motor (33) is installed at the rear of the frame (31), and a transmission shaft (35) is also provided on the frame (31), and the transmission shaft (35) passes through the lower end of the battery pack body (30).

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