Battery box module and vehicle

Abstract

The technical scheme of the utility model discloses a battery box module and a vehicle, the battery box module is applied to the vehicle, the battery box module comprises a battery box assembly, the battery box assembly comprises a box body, a door cover, a battery pack and a first wire harness, and the box body is provided with a containing cavity and a battery changing port communicated with the containing cavity; the door cover is arranged at the battery changing opening and can open or close the battery changing opening; the battery pack can be loaded into the accommodating cavity from the battery replacing opening; and a plugging opening is formed in one side, facing the battery replacing opening, of the battery pack. According to the technical scheme, the cruising ability and the transportation efficiency of the vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a battery box module and a vehicle. Background Art

[0002] With the rapid development of the logistics industry, four-wheeled logistics vehicles have advantages over traditional three-wheeled vehicles in terms of compliance, large load capacity, and high speed, making them more suitable for express logistics work in cities. However, existing pure electric four-wheeled logistics vehicles have problems such as short driving range and long charging time. In addition, public facilities such as charging piles in the city are not perfect, and charging queues are inevitable, which will lead to shorter daily working hours and reduced work efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a battery box module, aiming to improve the endurance of a vehicle.

[0004] The utility model technical solution proposes a battery box module, which is applied to a vehicle. The battery box module includes a battery box assembly, and the battery box assembly includes:

[0005] A box body, comprising a receiving cavity and a battery replacement port connected to the receiving cavity;

[0006] A door cover, provided at the battery exchange port, the door cover being capable of opening or closing the battery exchange port;

[0007] The battery pack can be loaded into the accommodating cavity from the battery exchange port, and a plug-in interface is provided on the side of the battery pack facing the battery exchange port.

[0008] In one embodiment, the battery box module further includes a first wiring harness having a first end and a second end opposite to each other, the first end being used to connect to a battery management module of the vehicle, and the second end being detachably connected to the plug interface.

[0009] In one embodiment, a wire passing channel is formed between the door cover and an edge of the battery exchange port, and the first wiring harness passes through the wire passing channel.

[0010] In one embodiment, the door cover includes a first door cover portion and a second door cover portion connected to each other, the first door cover portion is formed with a makeshift groove, the edge of the battery exchange port is arranged in the makeshift groove, and forms at least part of the wire passing channel with the makeshift groove, and the second door cover portion is connected to the edge of the notch of the makeshift groove to open or close the battery exchange port.

[0011] In one embodiment, the first door cover portion is arranged above the second door cover portion, the give way groove and the upper edge of the battery exchange port form at least a portion of the wire passing channel, and the groove side wall of the give way groove away from the side of the second door cover portion is inclined upward.

[0012] In one embodiment, the battery box assembly further includes a door lock structure, which includes a first locking member arranged on the edge of the battery exchange port and a second locking member arranged on the door cover, and the first locking member can be locked with the second locking member.

[0013] In one embodiment, the battery box assembly further includes a partition, which is disposed in the accommodating cavity to divide the accommodating cavity into a plurality of installation cavities, and the plurality of battery packs are disposed in the installation cavities in a one-to-one correspondence.

[0014] In one embodiment, at least one inner wall surface of the installation cavity is provided with a limiting rib, and the limiting rib extends along the installation direction of the battery pack.

[0015] In one embodiment, the battery box module also includes a mounting bracket, which is connected to two frame longitudinal beams of the vehicle and forms an installation space with the two frame longitudinal beams. The battery box assembly and the battery management module of the vehicle are arranged in the installation space and are respectively connected to the mounting bracket.

[0016] In one embodiment, the mounting bracket includes a first mounting plate, a second mounting plate, two main beams and two sub-beams, the two main beams are arranged at intervals, the two main beams are used to be connected to the two frame longitudinal beams in a one-to-one correspondence, the two sub-beams are arranged at intervals between the two main beams, one end of the sub-beam is connected to one of the main beams, and the other end is connected to the other main beam; the first mounting plate is arranged between the two main beams and connects the two sub-beams, the first mounting plate is used to install the battery management module, and the second mounting plate is arranged on the outside of the main beam for installing the battery box assembly.

[0017] In one embodiment, the frame longitudinal beam comprises a first beam section, a second beam section and a third beam section disposed between the first beam section and the second beam section, and the height of the first beam section from the ground is greater than the height of the second beam section from the ground;

[0018] The main beam includes a supporting section, a first connecting section and a second connecting section. The supporting section extends along the extension direction of the first beam section. The first connecting section is arranged at one end of the supporting section and connected to the first beam section. The second connecting section is arranged at the other end of the supporting section and connected to the second beam section. The two sub-beams are arranged between the two supporting sections at intervals. The first mounting plate is arranged between the two supporting sections, and the second mounting plate is arranged on the outside of the supporting section.

[0019] In one embodiment, the mounting bracket is provided with two second mounting plates, and the two second mounting plates are arranged one by one on the outer sides of the two main beams; the battery box module is provided with two battery box assemblies, and the two battery box assemblies are respectively arranged on the two second mounting plates, and the battery exchange port is arranged on the side away from the first mounting plate.

[0020] In one embodiment, the battery box module further includes a connector, which connects the mounting bracket and the door cover, and the door cover can be rotated to open or close the battery exchange port through the connector.

[0021] The utility model also provides a vehicle, comprising the above-mentioned battery box module.

[0022] The technical solution of the utility model can open or close the battery exchange port through the door cover, so that different battery packs can be loaded into the accommodating cavity, thereby realizing the replaceability of the battery pack. At night or when taking a long rest, use a home charging pile or a public charging pile to charge the battery pack; when the vehicle is low on power after working for a period of time during the day, the battery pack can be replaced manually to extend the daytime working hours, thereby improving the vehicle's endurance and transportation efficiency. In addition, the battery pack's plug-in interface faces the battery exchange port, so the electrical connection between the battery pack and the vehicle can be observed, so that the battery pack can be quickly and accurately electrically connected to the vehicle during the connection process, thereby improving the convenience of the electrical connection between the battery pack and the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 This is a schematic structural diagram of a battery box module in one embodiment of the utility model;

[0025] Figure 2 for Figure 1 A partial structural diagram of the battery box module;

[0026] Figure 3 for Figure 1 A top view of the battery box module;

[0027] Figure 4 It is a structural schematic diagram of the connection between the door lock structure and the door cover;

[0028] Figure 5 It is a structural schematic diagram of the connection between the frame longitudinal beam and the battery box module;

[0029] Figure 6 for Figure 5 Side view of

[0030] Figure 7 for Figure 1 Top view of the mounting bracket.

[0031] Description of Figure Numbers:

[0032] Label name Label name 10 Battery box module 110 Cabinet 20 Frame rails 120 Door Cover 30 Battery Management Module 130 First wiring harness 100 Battery box assembly 140 Door lock structure 200 Mounting bracket 150 Separators 300 Connectors 210 Main beam 111 Mounting cavity 220 Subframe 112 Limiting ribs 230 First mounting plate 121 First door cover 240 Second mounting plate 122 Second door cover 211 First connection section 141 First locking member 212 Second connecting section 142 Second locking member 213 Support segment 21 First beam section 23 The third beam section 22 The second beam section

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] 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 of 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.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] Please refer to Figure 1 and Figure 2The utility model proposes a battery box module 10, which is applied to a vehicle. The vehicle is provided with a battery management module 30. The battery box module 10 includes a battery box assembly 100. The battery box assembly 100 includes a box body 110, a door cover 120 and a battery pack. The box body 110 has a accommodating cavity and a battery exchange port connected to the accommodating cavity; the door cover 120 is arranged at the battery exchange port, and the door cover 120 can open or close the battery exchange port; the battery pack can be loaded into the accommodating cavity from the battery exchange port, and a plug-in interface is provided on the side of the battery pack facing the battery exchange port.

[0038] Specifically, the box body 110 is used to install and protect the battery pack. When the battery needs to be replaced, the user only needs to open the door cover 120, load the battery pack into the accommodating cavity from the battery replacement port, and then detachably connect it to the plug interface of the battery pack through the second end of the first wiring harness 130, thereby realizing the rapid replacement of the battery pack, improving the vehicle's endurance, reducing the time spent queuing for charging during the day, and improving work efficiency.

[0039] The plug interface of the battery pack faces the battery exchange port, and the electrical connection between the battery pack and the vehicle can be observed, so that the battery pack can be quickly and accurately electrically connected to the vehicle during the connection process, so as to improve the convenience of the electrical connection between the battery pack and the vehicle. The battery pack can be electrically connected to the vehicle through a high-voltage wire harness, or a connector can be provided on the door cover 120. When the door cover 120 is closed, the plug interface of the battery pack can be electrically connected to the connector on the door cover 120. In addition, the plug interface is set on the side of the battery pack facing the battery exchange port, which can conveniently check whether there is any abnormality in the plug interface before plugging, such as water or dust accumulation.

[0040] The technical solution of the utility model can open or close the battery replacement port through the door cover 120, so that different battery packs can be loaded into the accommodating cavity, thereby realizing the replaceability of the battery pack. At night or when taking a long break, the battery pack can be charged using a home charging pile or a public charging pile; when the vehicle is running low on power after working for a period of time during the day, the battery pack can be replaced manually to extend the daytime working time, thereby improving the vehicle's endurance and transportation efficiency.

[0041] In one embodiment, the battery box module 10 further includes a first wiring harness 130 having a first end and a second end opposite to each other, wherein the first end is used to connect to the battery management module 30 of the vehicle, and the second end can be detachably connected to the plug interface.

[0042] Please refer to Figures 1 to 3Since the connection between the battery pack and the battery management module 30 uses the first wiring harness 130, the electrical connection between the battery pack and the battery management module 30 can be easily achieved. Moreover, the plug interface of the battery pack faces the battery replacement port, and the second end of the first wiring harness 130 can be directly connected to the plug interface quickly and accurately, thereby further improving the maintainability and reliability of the battery box module 10. The battery pack and the battery management module 30 are connected through the first wiring harness 130, and the second end is more flexible and convenient when plugged into the plug interface.

[0043] In one embodiment, a wire passage is formed between the door cover 120 and the edge of the battery exchange port, and the first wire harness 130 passes through the wire passage.

[0044] Please refer to Figures 1 to 3 , there is a spacing between the door cover 120 and the edge of the battery swap port, and the spacing forms a wire passing channel for the first wire harness 130 to pass through, so that the first wire harness 130 is connected to the battery pack. The wire passing channel can be formed by a spacing between part of the door cover 120 and the edge of the battery swap port, or it can be formed by at least one of the door cover 120 and the battery swap port being provided with a wire passing gap. The provision of the wire passing channel enables the first wire harness 130 to maintain a good connection state when the door cover 120 is closed, avoiding the door cover 120 and the edge of the battery swap port from clamping the first wire harness 130 too tightly and damaging the first wire harness 130, thereby ensuring the normal operation of the battery box module 10. In other embodiments, the wire passing channel may also be a wire passing hole provided on the side wall of the box body 110 or the door cover 120.

[0045] In one embodiment, the door cover 120 includes a first door cover portion 121 and a second door cover portion 122 that are connected to each other. The first door cover portion 121 is formed with a makeshift groove. The edge of the battery exchange port is arranged in the makeshift groove and forms at least a partial wire passing channel with the makeshift groove. The second door cover portion 122 is connected to the edge of the notch of the makeshift groove to open or close the battery exchange port.

[0046] Please refer to Figure 1 and Figure 2, the first door cover portion 121 is located at the edge of the power exchange port and forms a clearance groove. There is a spacing between the inner wall of the clearance groove and the edge of the power exchange port, so that the clearance groove forms at least a partial wire passage. The edge of the power exchange port can be arranged at the notch of the clearance groove, or it can extend into the inside of the clearance groove. The existence of the wire passage enables the first wiring harness 130 to pass through the clearance groove and maintain a good connection with the battery pack. In addition, the first door cover portion 121 also has the function of protecting the power exchange port, preventing the wire passage from exposing the inside of the accommodating cavity too much, thereby affecting the safety of the battery pack. The first door cover portion 121 can be arranged at the upper edge of the power exchange port, or the lower edge of the power exchange port, or the side edge of the power exchange port. The second door cover portion 122 is connected to the edge of the notch of the clearance groove, and is used to open or close the power exchange port. When the second door cover portion 122 is closed, the second door cover portion 122 can confine the battery pack in the accommodating cavity and protect the battery pack from the influence of the external environment.

[0047] In one embodiment, the first door cover portion 121 is disposed above the second door cover portion 122, and the clearance groove and the upper edge of the battery exchange port form at least a partial wire passing channel, and the groove side wall of the clearance groove away from the side of the second door cover portion 122 is inclined upward.

[0048] Please refer to Figure 1 and Figure 2 , the first door cover part 121 is located above the second door cover part 122, that is, the first door cover part 121 is arranged at the upper edge of the battery exchange port. The give way groove of the first door cover part 121 and the upper edge of the battery exchange port form at least part of the wire passage. The first wiring harness 130 passes through the wire passage from the upper edge of the battery exchange port, extends along the top of the box body 110 and is electrically connected to the vehicle. The side wall of the groove away from the side of the second door cover part 122 is tilted upward. On the one hand, it can increase the wire passage, help the first wire harness 130 to pass through the wire passage smoothly, reduce the friction and wear between the first wire harness 130 and the side wall of the groove, so as to better protect the wire harness. On the other hand, the upward tilt of the side wall of the groove away from the side of the second door cover part 122 can play a role in diverting rainwater, etc., and rainwater and other water flows can flow downward along the outer wall of the groove side wall, thereby reducing the risk of rainwater entering the accommodating cavity from the wire passage, thereby improving the safety of the battery pack.

[0049] In one embodiment, the battery box assembly 100 also includes a door lock structure 140, which includes a first locking member 141 arranged on the edge of the battery exchange port and a second locking member 142 arranged on the door cover 120, and the first locking member 141 can be locked with the second locking member 142.

[0050] Please refer to Figure 1 and Figure 4, the first locking member 141 is located at the edge of the battery exchange port, and the second locking member 142 is located on the door cover 120. When the battery box needs to be closed, the first locking member 141 and the second locking member 142 will dock with each other and lock together, thereby ensuring that the door cover 120 is tightly fixed on the battery box. The locking operation of the first locking member 141 and the second locking member 142 can effectively prevent the door cover 120 from being accidentally opened, thereby protecting the battery pack inside the battery box from the influence of the external environment, and preventing the battery pack from slipping from the battery exchange port, and the sealing and safety of the battery box are further improved.

[0051] In one embodiment, the battery box assembly 100 further includes a partition 150 , which is disposed in the accommodating cavity to divide the accommodating cavity into a plurality of installation cavities 111 , and a plurality of battery packs are disposed in the installation cavities 111 in a one-to-one correspondence.

[0052] Please refer to Figure 1 and Figure 2 , the partition 150 is placed in the accommodating cavity, and the accommodating cavity can be divided into a corresponding number of mounting cavities 111 according to the required number of mounting cavities 111. The size and shape of each mounting cavity 111 match the battery pack to ensure that the battery pack can be securely installed in the mounting cavity 111. A box 110 can effectively accommodate multiple battery packs. The presence of the partition 150 enables each battery pack to have its own mounting cavity 111, avoiding collision and interference between battery packs, while providing good isolation and protection needs.

[0053] In one embodiment, at least one inner wall surface of the installation cavity 111 is provided with a limiting rib 112 , and the limiting rib 112 extends along the installation direction of the battery pack.

[0054] Please refer to Figure 1 and Figure 2 The limiting ribs 112 are arranged on the inner wall surface of the installation cavity 111. The limiting ribs 112 can be arranged on at least one of the top wall, bottom wall and side wall of the installation cavity 111, and the limiting ribs 112 extend along the loading direction of the battery pack. The limiting ribs 112 not only limit the battery pack, but also guide it, thereby improving the convenience of installing the battery pack. When the battery pack is placed in the installation cavity 111, the limiting ribs 112 will be in close contact with the outer surface of the battery pack, thereby limiting its movement in the up and down and left and right directions, thereby ensuring the stability and fixity of the battery pack in the installation cavity 111, and effectively preventing the battery box module 10 from moving during transportation, vibration or other external forces, thereby protecting the safety and performance stability of the battery pack.

[0055] In one embodiment, the battery box module 10 also includes a mounting bracket 200, which connects two frame longitudinal beams 20 of the vehicle and forms an installation space with the two frame longitudinal beams 20. The battery box assembly 100 and the battery management module 30 are arranged in the installation space and are respectively connected to the mounting bracket 200.

[0056] Please refer to Figures 5 to 7 , the mounting bracket 200 is connected to the two frame rails 20 of the vehicle to form a stable support structure. An installation space is formed between the mounting bracket 200 and the frame rail 20 for accommodating the battery box assembly 100 and the battery management module 30. The battery box assembly 100 is arranged in the installation space and connected to the mounting bracket 200; the battery management module 30 is also arranged in the installation space and connected to the mounting bracket 200. The connection method can be bolt connection, welding or clamping, etc., to ensure a firm connection between the battery box assembly 100 and the mounting bracket 200. The battery box assembly 100 and the battery management module 30 are installed in the installation space of the vehicle, and the mounting bracket 200 provides a stable support and connection. The battery box assembly 100 and the battery management module 30 can be firmly fixed to the vehicle without loosening or moving, and can also be easily installed and maintained. In addition, the battery box assembly 100 and the battery management module 30 are installed together, and the length of the first harness 130 is greatly reduced, which reduces the cost and avoids the first harness 130 from being too long and messy. The first end of the first harness 130 is specifically electrically connected to the PDU module of the battery management module 30.

[0057] In one embodiment, the mounting bracket 200 includes a first mounting plate 230, a second mounting plate 240, two main beams 210 and two sub-beams 220. The two main beams 210 are arranged at intervals, and the two main beams 210 are used to be connected to the two frame longitudinal beams 20 in a one-to-one correspondence. The two sub-beams 220 are arranged at intervals between the two main beams 210, and one end of the sub-beam 220 is connected to one of the main beams 210, and the other end is connected to the other main beam 210; the first mounting plate 230 is arranged between the two main beams 210 and connects the two sub-beams 220. The first mounting plate 230 is used to install the battery management module 30, and the second mounting plate 240 is arranged on the outside of the main beam 210 for installing the battery box assembly 100.

[0058] Please refer to Figures 5 to 7The mounting bracket 200 includes a first mounting plate 230, a second mounting plate 240, two main beams 210 and two sub-beams 220. The main beam 210 is tightly connected to the frame longitudinal beam 20 to provide stable support and fixation. The first mounting plate 230 is placed between the two main beams 210 and connected to the two sub-beams 220. The main function of the first mounting plate 230 is to install the battery management module 30 so as to fix it on the vehicle. By connecting the first mounting plate 230 to the sub-beam 220 and the main beam 210, the first mounting plate 230 can provide stable support and fixation to ensure the safe installation of the battery management module 30. The second mounting plate 240 is placed on the outside of the main beam 210 for installing the battery box assembly 100. The position of the second mounting plate 240 is selected on the outside of the main beam 210, which can provide a larger installation space for the battery box assembly 100 and facilitate installation and maintenance. By connecting the second mounting plate 240 to the main beam 210, the battery box assembly 100 can be firmly fixed on the vehicle without loosening or moving. The mounting bracket 200 can provide a stable support structure so that the battery management module 30 and the battery box assembly 100 can be safely installed on the vehicle. At the same time, the structure of the mounting bracket 200 can also adapt to vehicles of different types and sizes to meet actual needs.

[0059] In one embodiment, the frame longitudinal beam 20 includes a first beam section 21, a second beam section 22 and a third beam section 23 arranged between the first beam section 21 and the second beam section 22, and the height of the first beam section 21 from the ground is greater than the height of the second beam section 22 from the ground; the main beam 210 includes a support section 213, a first connecting section 211 and a second connecting section 212, the support section 213 extends along the extension direction of the first beam section 21, the first connecting section 211 is arranged at one end of the support section 213 and connected to the first beam section 21, and the second connecting section 212 is arranged at the other end of the support section 213 and connected to the second beam section 22; two sub-beams 220 are arranged between the two support sections 213, the first mounting plate 230 is arranged between the two support sections 213, and the second mounting plate 240 is arranged on the outside of the support section 213.

[0060] Please refer to Figure 7 The frame longitudinal beam 20 includes a first beam section 21, a second beam section 22, and a third beam section 23 disposed between the first beam section 21 and the second beam section 22. The ground clearance of the first beam section 21 is greater than the ground clearance of the second beam section 22, which can improve the ground clearance of the vehicle and increase the ability of the vehicle to pass obstacles. In addition, the mounting bracket 200 can utilize the ground clearance difference between the first beam section 21 and the second beam section 22 and be installed below the second beam section 22 and the third beam section 23.

[0061] The main beam 210 includes a support section 213, a first connecting section 211 and a second connecting section. The support section 213 extends along the extension direction of the first beam section 21 for providing support and fixation. The first connecting section 211 is provided at one end of the support section 213 and connects the first beam section 21. The first connecting section 211 is substantially perpendicular to the first beam section 21 and the support section 213, and is firmly connected to the first beam section 21 and the support section 213 by welding or bolting. The second connecting section 212 is provided at the other end of the support section 213 and is connected to the second beam section 22 by welding or bolting. Two auxiliary beams 220 are provided at intervals between the two support sections 213 for providing additional support and fixation. The first mounting plate 230 is provided between the two support sections 213 for installing the battery management module 30 or other components. The second mounting plate 240 is provided on the outside of the support section 213 for installing the battery box assembly 100.

[0062] In one embodiment, the mounting bracket 200 is provided with two second mounting plates 240, and the two second mounting plates 240 are arranged one by one on the outer sides of the two main beams 210; the battery box module 10 is provided with two battery box assemblies 100, and the two battery box assemblies 100 are respectively arranged on the two second mounting plates 240, and the battery exchange port is arranged on the side away from the first mounting plate 230.

[0063] Please refer to Figures 1 to 7 , the mounting bracket 200 is provided with two second mounting plates 240, and the two second mounting plates 240 are arranged one by one on the outside of the two main beams 210. The two second mounting plates 240 are specifically installed on the outside of the two support sections 213, which can provide more installation space for the battery box assembly 100. The battery box module 10 is provided with two battery box assemblies 100, and the two battery box assemblies 100 are arranged on the two second mounting plates 240, so that the battery box assemblies 100 are distributed on both sides of the vehicle, thereby balancing the center of gravity of the vehicle and improving the stability of the vehicle. At the same time, the setting of the two battery box assemblies 100 can also provide more battery capacity and extend the vehicle's cruising range. The battery exchange port is arranged on the side away from the first mounting plate 230, so that the position of the battery exchange port is more reasonable and convenient, which is convenient for the vehicle to replace the battery. At the same time, the position of the battery exchange port can also avoid interference with other components and improve the safety and reliability of the vehicle.

[0064] The first wiring harness 130 is connected to the battery management module 30, and the electric energy is connected to other systems and components of the vehicle through the battery management module 30. The mounting bracket 200 is provided with two battery pack assemblies, that is, two boxes 110 are provided, and two partitions 150 are respectively provided in each box 110 to divide the accommodating cavity into three mounting cavities 111, so that a battery box module 10 has six battery packs working at the same time under normal circumstances. When one or several battery packs are damaged due to an accident, the battery management module 30 will automatically calculate the power of the damaged battery pack. If the power does not meet the normal operation of the system, the power supply participation of the relevant battery pack will be automatically abandoned to ensure the normal operation of the whole vehicle. The battery pack has high versatility, and any battery pack can be charged with an ordinary two-wheel electric bicycle charger after being disassembled.

[0065] The battery pack can also be charged in the accommodating cavity through an external power source. A charging interface is provided in the front of the vehicle, and the charging interface is electrically connected to the DCDC converter through the second wiring harness. The external charging device is connected to the charging interface to transmit the electrical signal to the DCDC converter through the second wiring harness, and the 220V voltage is converted into the voltage required for vehicle operation, and then transmitted to the battery pack for storage. Thus, the vehicle has both charging and battery replacement functions. The charging function is suitable for charging during long breaks or at night to ensure the normal use of the vehicle during the day; the battery replacement function is suitable for timely powering the entire vehicle during daytime work to ensure daytime mileage and working hours.

[0066] In one embodiment, the battery box module 10 further includes a connector 300 , which connects the mounting bracket 200 and the door cover 120 . The door cover 120 can be rotated to open or close the battery exchange port through the connector 300 .

[0067] Please refer to Figure 1 , the connector 300 not only realizes the connection between the door cover 120 and the mounting bracket 200, but also realizes the rotation opening and closing of the door cover 120. The connector 300 forms a reliable connection between the door cover 120 and the mounting bracket 200, provides stable support and fixation, and ensures the stability and reliability of the door cover 120 during use. At the same time, the stability of the connection between the box body 110 and the mounting bracket 200 is further improved. The door cover 120 can be rotated to open or close the battery exchange port through the connector 300, so that the user can easily open or close the battery exchange port to perform battery replacement operations.

[0068] The utility model also proposes a vehicle, which includes a battery box module 10. The specific structure of the battery box module 10 refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0069] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A battery box module, applied to a vehicle, characterized in that: The battery box module includes a battery box assembly, and the battery box assembly includes: A box body, comprising a receiving cavity and a battery replacement port connected to the receiving cavity; A door cover, provided at the battery exchange port, the door cover being capable of opening or closing the battery exchange port; The battery pack can be loaded into the accommodating cavity from the battery exchange port, and a plug-in interface is provided on the side of the battery pack facing the battery exchange port.

2. The battery box module according to claim 1, characterized in that: The battery box module also includes a first wiring harness having a first end and a second end opposite to each other, the first end being used to connect to the battery management module of the vehicle, and the second end being detachably connected to the plug interface.

3. The battery box module according to claim 2, characterized in that: A wire passing channel is formed between the door cover and the edge of the battery exchange port, and the first wiring harness passes through the wire passing channel.

4. The battery box module according to claim 3, characterized in that: The door cover includes a first door cover part and a second door cover part connected to each other. The first door cover part is formed with a makeshift groove. The edge of the battery exchange port is arranged in the makeshift groove and forms at least part of the wire passing channel with the makeshift groove. The second door cover part is connected to the edge of the notch of the makeshift groove to open or close the battery exchange port.

5. The battery box module according to claim 4, characterized in that: The first door cover part is arranged above the second door cover part, the give way groove and the upper edge of the battery exchange port form at least a part of the wire passing channel, and the groove side wall of the give way groove away from the side of the second door cover part is inclined upward.

6. The battery box module according to claim 1, characterized in that: The battery box assembly also includes a door lock structure, which includes a first locking member arranged on the edge of the battery exchange port and a second locking member arranged on the door cover, and the first locking member can be locked with the second locking member.

7. The battery box module according to claim 1, characterized in that: The battery box assembly also includes a partition, which is arranged in the accommodating cavity to divide the accommodating cavity into a plurality of installation cavities, and the plurality of battery packs are arranged in the installation cavities in a one-to-one correspondence.

8. The battery box module according to claim 7, characterized in that: At least one inner wall surface of the installation cavity is provided with a limiting rib, and the limiting rib extends along the installation direction of the battery pack.

9. The battery box module according to claim 1, characterized in that: The battery box module also includes a mounting bracket, which is connected to the two frame longitudinal beams of the vehicle and forms an installation space with the two frame longitudinal beams. The battery box assembly and the battery management module of the vehicle are arranged in the installation space and are respectively connected to the mounting bracket.

10. The battery box module according to claim 9, characterized in that: The mounting bracket includes a first mounting plate, a second mounting plate, two main beams and two sub-beams. The two main beams are arranged at intervals, and the two main beams are used to be connected to the two frame longitudinal beams one by one. The two sub-beams are arranged between the two main beams, and one end of the sub-beam is connected to one of the main beams, and the other end is connected to the other main beam; the first mounting plate is arranged between the two main beams and connects the two sub-beams. The first mounting plate is used to install the battery management module, and the second mounting plate is arranged on the outside of the main beam and is used to install the battery box assembly.

11. The battery box module according to claim 10, characterized in that: The frame longitudinal beam comprises a first beam section, a second beam section and a third beam section arranged between the first beam section and the second beam section, and the height of the first beam section from the ground is greater than the height of the second beam section from the ground; The main beam includes a supporting section, a first connecting section and a second connecting section. The supporting section extends along the extension direction of the first beam section. The first connecting section is arranged at one end of the supporting section and connected to the first beam section. The second connecting section is arranged at the other end of the supporting section and connected to the second beam section. The two sub-beams are arranged between the two supporting sections at intervals. The first mounting plate is arranged between the two supporting sections, and the second mounting plate is arranged on the outside of the supporting section.

12. The battery box module according to claim 10, characterized in that: The mounting bracket is provided with two second mounting plates, and the two second mounting plates are arranged one by one on the outer sides of the two main beams; the battery box module is provided with two battery box assemblies, and the two battery box assemblies are respectively arranged on the two second mounting plates, and the battery exchange port is arranged on the side away from the first mounting plate.

13. The battery box module according to claim 9, characterized in that: The battery box module also includes a connector, which connects the mounting bracket and the door cover, and the door cover can be rotated to open or close the battery exchange port through the connector.

14. A vehicle, characterized in that: Comprising a battery box module as described in any one of claims 1-13.

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