WO2024011960A1 - Electric vehicle - Google Patents

Abstract

An electric vehicle, comprising a vehicle body (1), a quick-swapping support (2) and a plurality of battery packs (5). The quick-swapping support (2) is connected to vehicle beams (11) of the vehicle body (1), and the quick-swapping support (2) comprises a plurality of battery pack accommodating areas (21) formed in the width direction of the vehicle body (1), a locking mechanism (211) being provided in each battery pack accommodating area (21). Each of the plurality of battery packs (5) has a locking member (51), the locking members (51) being detachably connected to the locking mechanisms (211). The plurality of battery packs (5) are independently connected to the corresponding battery pack accommodating areas (21) respectively by means of the locking members (51), the plurality of battery packs (5) being arranged in parallel in the width direction of the vehicle body (1). The plurality of battery packs are mounted in the plurality of battery pack accommodating areas respectively, so that each independent battery pack has relatively smaller size and lighter weight, thus allowing convenient installation and helping to standardize the battery packs; in addition, there is no need to use large transportation equipment to transport separately-placed battery packs, thereby reducing the requirement for a battery swapping apparatus.

Description

electric vehicle

This application claims the priority of Chinese patent application 2022108378094 with a filing date of July 15, 2022. This application cites the full text of the above-mentioned Chinese patent application.

Technical field

The invention relates to an electric vehicle.

Background technique

Existing battery pack installation methods for electric vehicles are generally divided into fixed type and quick-change type. Among them, fixed type batteries are generally fixed on the vehicle, and the vehicle is directly used as the charging object during charging. The quick-change battery pack is generally fixed on the vehicle's bracket through movable installation. The battery pack can be removed to replace or charge the battery box separately. After the replaced battery pack is fully charged, reinstall it on the vehicle.

Among them, for quick-change battery packs, the overall battery pack is large and heavy, making replacement difficult. Especially for large vehicles, such as heavy-duty trucks, the weight of the vehicle body and cargo is very large, resulting in large vehicles having a high demand for battery pack capacity. The electric energy must be large enough to support large vehicles traveling hundreds of kilometers. In this case Under the circumstances, it is difficult to replace the entire battery pack, and large-scale transportation equipment is required to pick up, place and transport the battery pack, resulting in high production costs.

Contents of the invention

The technical problem to be solved by the present invention is to provide an electric vehicle in order to overcome the difficulty of replacing the entire battery pack in the prior art.

The present invention solves the above technical problems through the following technical solutions:

The invention provides an electric vehicle, which includes:

Body body;

Quick-change bracket, the quick-change bracket is connected to the vehicle beam of the vehicle body, and the quick-change bracket forms a plurality of battery pack storage areas along the width direction of the vehicle body body. Each battery pack storage area has Equipped with locking mechanism;

A plurality of battery packs, the battery pack has a locking piece, the locking piece is detachably connected to the locking mechanism, and the plurality of battery packs are independently connected to the corresponding battery through the locking piece. A storage area is included, in which a plurality of battery packs are arranged side by side along the width direction of the vehicle body.

In this solution, the above structural form is adopted, and multiple battery packs are respectively installed through multiple battery pack storage areas. The multiple battery packs are arranged side by side along the width direction of the body body through quick-change brackets and are fixed on the body of the electric vehicle. , to realize the battery pack packaging design. First, multiple independent battery packs are used. Compared with a large battery pack in traditional designs, when electric vehicles require the same capacity, each independent battery pack has a smaller relative volume and weight, making it easier to install. , which is conducive to the standardization of battery packs; secondly, after the battery packs are placed in boxes, different numbers of battery packs can be matched and installed according to the power consumption required by the electric vehicle, and the compatibility is strong; thirdly In terms of aspect, the battery packs are divided into boxes. Compared with transporting the entire battery pack, each independent battery pack does not need to use large-scale transportation equipment to transport the divided battery packs, which reduces the requirements for battery replacement equipment. In addition, multiple battery packs are arranged along the width direction of the body body, and the structure is compact. It can better utilize the space between the body beams and both sides to arrange the battery packs, save installation space, and also make better use of the body body. A locking mechanism is provided in the length direction, which is beneficial to the load-bearing stability of the battery pack and also provides convenience for simultaneous battery swapping on both sides.

Preferably, the locking mechanism is distributed on at least one side of the battery pack containing area along the length and/or width direction of the vehicle body;

Along the length and/or width direction of the vehicle body, the side wall of the battery pack is provided with the locking piece that cooperates with the locking mechanism.

In this solution, using the above structural form, the locking mechanism is located on at least one side of the battery pack receiving area. Correspondingly, the locking member is located on the side wall of the battery pack. The space layout is reasonable to facilitate the process of the battery pack entering the battery pack receiving area. , realize the connection between the locking piece and the locking mechanism.

Preferably, at least two locking mechanisms are provided on at least one side of the battery pack containing area along the width and/or length direction of the vehicle body, and at least two locking mechanisms are arranged along the vehicle body. The length and/or width direction intervals of the body are set.

In this solution, the above structural form is adopted, and multiple locking points are set between the battery pack and the battery pack containing area on one side of the battery pack containing area, and the battery pack is fixed in the battery pack containing area through multiple locking mechanisms. to improve the reliability and stability of the battery pack locked in the quick-change bracket.

Preferably, along the height direction of the battery pack, the locking member is located in the middle or below the middle of the battery pack.

In this solution, the above structural form is adopted, and the connection with the locking mechanism is realized through the locking piece located in the middle or below the middle area of the battery pack. The connection point is located in the middle or below the middle area of the battery pack, reducing the area where the battery pack needs to be suspended. , high locking stability.

Preferably, along the height direction of the vehicle body body, the battery pack is located at the bottom of the vehicle beam, or the battery pack is partially higher than the lower surface of the vehicle beam.

In this plan, the above-mentioned structural form is used to set the installation space of the battery pack at the bottom of the vehicle beam, making full use of the space under the vehicle beam, which is beneficial to improving the rationality of the space layout. The battery pack part is higher than the lower surface of the vehicle beam, which effectively improves space utilization and increases the distance from the ground to the lower surface of the battery pack, making it easier for power-changing equipment to enter and exit the bottom of the battery pack.

Preferably, part of the battery pack is located on both sides of the vehicle beam and/or part of the battery pack is located between the two vehicle beams.

In this solution, the above structural form is adopted, and some battery packs are installed on both sides of the vehicle beam to improve the balance of the vehicle beam, which is beneficial to improving the stability of the electric vehicle during its driving. Part of the battery pack is installed between the two car beams, making full use of the space between the two car beams, and the space layout is reasonable.

Preferably, the quick-change bracket includes a plurality of sub-brackets, the sub-brackets include a first cross beam and a first longitudinal beam, the first cross beam is arranged along the width direction of the vehicle body, and the first longitudinal beam Arranged along the length direction of the vehicle body, the first cross beam and the first longitudinal beam are connected end to end to form the battery pack storage area, and the first longitudinal beam faces the side of the battery pack storage area. The locking mechanism is provided.

In this solution, the above structural form is adopted. Firstly, the first cross beam and the first longitudinal beam are connected end to end in order to form a frame structure, which is beneficial to improving the strength of the sub-bracket. In the second aspect, the space formed by connecting the first cross beam and the first longitudinal beam in sequence is used as a battery. Includes accommodating area and reasonable spatial layout. Thirdly, damage to an independent sub-bracket does not affect the use of other sub-brackets. There is no need to replace the entire quick-change bracket, which saves costs and has high replaceability of parts. In addition, the sub-brackets are processed separately to facilitate processing. Fourthly, the locking mechanism is arranged on the side of the first longitudinal beam close to the battery pack storage area, and the space layout is reasonable so that the locking piece and the locking mechanism can be connected when the battery pack enters the battery pack storage area.

Preferably, there are no less than two sub-brackets, at least two of the sub-brackets are located at least partially outside the vehicle beam, and the battery pack storage area is formed between two adjacent sub-brackets. , the locking mechanisms are respectively provided on the outer sides of the two adjacent first longitudinal beams on the two sub-frames.

In this solution, the above structural form is adopted, and the space between two adjacent sub-brackets is used as the battery pack storage area. The space layout is reasonable and materials are saved. Locking mechanisms are respectively provided on the outer sides of the two adjacent first longitudinal beams in the two adjacent sub-supports, so that locking mechanisms are provided on both sides of the battery pack accommodation area formed between the two adjacent sub-supports, achieving The feasibility of the battery pack being locked in the battery pack receiving area also allows both sides of the battery pack to be connected to the battery pack receiving area to improve balance.

Preferably, the number of the sub-frames is no less than three, some of the sub-frames are located between two of the vehicle beams, and some of the sub-frames are at least partially located outside the corresponding vehicle beams.

In this solution, the above structural form is adopted, and no less than three sub-brackets are located between the two car beams and outside the car beam, making full use of the space at the bottom of the car beam and on both sides of the car beam, and the space utilization rate is high.

Preferably, the quick-change bracket includes a mounting beam, and at least part of the sub-bracket is connected to the vehicle beam through the mounting beam.

In this solution, the above-mentioned structural form is used to realize the connection between the sub-bracket and the vehicle beam through the mounting beam, ensuring that the sub-bracket is installed stably and reliably.

Preferably, the quick-change bracket includes a bracket body and a partition, the partition is connected to the bracket body, and the partition separates the bracket body to form at least two battery pack receiving areas. , along the width direction of the vehicle body body, the locking mechanism is provided on at least one side of the partition.

In this solution, the above structural form is adopted, and the area inside the bracket body is divided into at least two battery pack storage areas through partitions to form at least two independent battery pack storage areas. The bracket body adopts an integral structure and has high structural strength. And it is helpful to save installation space.

Preferably, the bracket body includes a second cross beam and a mounting beam, the mounting beam is connected to the vehicle beam, the second cross beam is arranged along the width direction of the vehicle body body, and the second cross beam is connected to the vehicle body. The two ends of the installation beam, and the two ends of the partition are respectively connected to the second cross beam.

In this solution, the above structural form is used to realize the connection between the second cross beam and the vehicle beam through the mounting beam. The second beam is connected to both ends of the mounting beam to strengthen the connection between the second beam and the mounting beam. In addition, the two ends of the partition are respectively connected to the second cross beam, and the connection effect is stable and the detachment of the partition is avoided.

Preferably, the bracket body further includes a second longitudinal beam, the second longitudinal beam is arranged along the length direction of the vehicle body body, the second longitudinal beam and the second cross beam are connected end to end in sequence, and the second longitudinal beam is connected end to end. The locking mechanism is provided on the side wall of the two longitudinal beams facing the partition.

In this solution, the above structural form is adopted, and the second longitudinal beam and the second cross beam are connected end to end in order to form a frame structure, which improves the strength of the bracket body. In addition, a locking mechanism is also provided on the side of the second longitudinal beam facing the partition, so that both sides of the battery pack are connected to the locking mechanism. Locking to further improve the reliability of the connection between the battery pack and the quick-change bracket.

Preferably, the mounting beam is connected to the top, side or bottom of the vehicle beam.

In this plan, the above structural form is adopted to make full use of the space on the top, side or bottom of the vehicle beam to realize the installation of the mounting beam, which is beneficial to improving the rationality of the space layout.

Preferably, the quick-change bracket includes two sets of sub-brackets spaced apart along the width direction of the vehicle body, at least one side of the sub-brackets forms the battery pack accommodation area, and the sub-brackets include a plurality of Segmented beams are arranged at intervals along the length direction of the vehicle body body. The segmented beams are connected to the vehicle beam. The locking mechanism is provided on at least the outer side wall of the segmented beams.

In this solution, using the above structural form, the number of sub-brackets can be increased or reduced according to actual needs, which has high flexibility and facilitates the improvement of the stability of battery pack installation.

Preferably, each of the segmented beams is provided with a connecting plate connected to the vehicle beam, and the connecting plate is offset from the locking mechanism.

In this plan, the above structural form is adopted, and connecting plates are provided on each segmented beam to achieve a stable connection between a single segmented beam and the vehicle beam and save the required connecting plate material.

Preferably, the quick-change bracket includes two fixed beams spaced apart along the width direction of the vehicle body, the fixed beams are connected to the vehicle beam, and at least one side of the fixed beams forms the battery It includes a receiving area, and the locking mechanism is provided on at least the outer side wall of the fixed beam.

In this solution, using the above structural form, the fixed beam can not only realize the installation of the battery pack, but also realize the connection between the quick-change bracket and the electric vehicle. The structure is simple and easy to operate, which is beneficial to saving costs and improving assembly efficiency.

Preferably, the quick-change bracket also includes a vehicle-end connector and a mounting component. Each battery pack receiving area is provided with a mounting component, and the mounting component is connected to the quick-change bracket. The vehicle-end connector Connectors are provided on the mounting assembly.

In this solution, the above-mentioned structural form is adopted, and a vehicle-side connector is provided in each battery pack storage area, so that each battery pack can independently supply power to the electric vehicle, thereby meeting the needs of boxing. The vehicle-side connector is connected to the quick-change bracket through the installation component, and the connection is stable and reliable. The installation component can be installed using the free area in the battery pack accommodation area, which can avoid installation interference with the locking mechanism and can provide vehicle-side connection. The installation space is reserved for the device to avoid occupying other space, which is beneficial to improving the rationality of space layout.

Preferably, the installation assembly includes a mounting rod and a mounting block. The mounting rod is connected to the side wall of the mounting block and installed on the quick-change bracket. The mounting block is used to install the vehicle. end connector;

Or, the mounting assembly includes a mounting plate, the mounting plate is connected to the quick-change bracket, and the vehicle end connector is provided on the mounting plate.

In this solution, the above structural form is adopted, and the mounting block used to install the vehicle-end connector is fixed on the quick-change bracket through the mounting rod. Compared with increasing the length of the mounting block, the two ends of the mounting block can be directly installed. Quick-change bracket saves material usage. The mounting plate for installing the vehicle-end connector is directly connected to the quick-change bracket, which helps improve assembly efficiency and facilitates parts processing.

Preferably, the quick-change bracket is also provided with a first limiting mechanism, and the first limiting mechanism is used to cooperate with the first limiting portion on the top of the battery pack to adjust the battery pack. To position.

In this solution, the above structural form is adopted, and the positioning between the battery pack and the quick-change bracket is achieved through the first limiting mechanism and the first limiting part, so as to play a guiding role when the battery pack is installed into the quick-changing bracket. , to refer to the installation accuracy of the battery pack into the battery pack receiving area. degree, improving the installation efficiency of the battery pack. At the same time, after the battery pack is installed on the quick-change bracket, the first limiting mechanism and the first limiting part that cooperate with each other can limit the position of the battery pack to prevent the battery pack from shaking while the vehicle is driving.

Preferably, second limiting mechanisms are provided on all four sides of the battery pack receiving area, and a second limiting portion is provided on the side wall of the battery pack to cooperate with the second limiting mechanism. One of the two limiting mechanisms and the second limiting part is a limiting seat, and the other is a limiting protrusion. The limiting seat is provided with an elastic piece, and the limiting protrusion and the elastic piece are Abut.

In this solution, the above structural form is adopted. The limit seat provides installation space for the elastic piece. The elastic piece is used to prevent rigid collision between the battery pack and the quick-change bracket to achieve elastic buffering. The elastic piece cooperates with the limit protrusion. Limit the displacement of the battery pack in the battery pack accommodation area to prevent damage to the battery pack.

Preferably, the quick-change bracket further includes a protective plate covering the top of the battery pack.

In this solution, the above-mentioned structural form is adopted, and the top of the battery pack is covered with a protective plate to reduce dust, rainwater and other debris from entering the battery pack storage area to avoid affecting the performance of the battery pack.

Preferably, a buffer pad is provided on the side of the protective plate facing the top of the battery pack, and/or an avoidance portion is provided on the side of the protective plate facing the top of the battery pack.

In this solution, the above structural form is adopted, and the buffer pad is provided to prevent the battery pack surface from being scratched when the battery pack is moved, thereby protecting the battery pack and reducing the shaking of the battery pack. In addition, the vehicle-end connector can be installed on the protective plate. There is a gap between the battery pack and the protective plate in the area other than the connection point of the vehicle-end connector. The buffer pad can compensate for the gap and ensure uniform load distribution. In addition, an avoidance part is provided in the protective plate to facilitate wiring. The vehicle-end connector can also be installed in the avoidance part. The space layout is reasonable to avoid contact interference between the vehicle-end connector and the protection plate.

Preferably, the locking mechanism includes a locking bracket, the locking bracket is provided with a channel extending in the direction of gravity, the locking mechanism further includes a first locking part and a second locking part, and the third locking part A locking part is rotatably installed on the locking bracket;

The first locking portion is configured to prevent the locking member located in the channel from moving downward when the first locking portion rotates to the locking position, so as to lock the locking member. ;

The second locking portion is configured to prevent the first locking portion from rotating when the first locking portion rotates to the locking position, so that the first locking portion remains in the locked position. Location.

In this solution, using the above structural form, the locking member enters the locking mechanism from bottom to top through the channel extending in the direction of gravity, and rotates to the locking position through the first lock, thereby realizing the locking of the locking member. While the first locking part locks the locking part, the second locking part limits the position of the first locking part. The locking is convenient and reliable, which is conducive to improving the efficiency of battery pack installation and disassembly, and is conducive to the realization of the battery pack. Quick replacement of bags.

Preferably, the electric vehicle is an electric truck.

In this solution, the above structural form is adopted. As an electric truck as a large electric vehicle, due to the high capacity demand for battery packs, the battery packs are divided into boxes to facilitate the replacement of the battery packs and save labor when replacing the battery packs.

The positive progressive effects of the present invention are:

The electric vehicle in the present invention is equipped with multiple battery packs respectively through multiple battery pack storage areas, and the multiple battery packs are arranged side by side and fixed on the body body of the electric vehicle through quick-change brackets along the width direction of the body body, thereby realizing the battery pack. Boxed design. Firstly, take Using multiple independent battery packs, compared with one large battery pack in traditional designs, when electric vehicles require the same capacity, each independent battery pack has a smaller relative volume and weight, which is easier to install and is beneficial to the battery. Standardization of packages; secondly, after the battery packs are placed in boxes, different numbers of battery packs can be matched and installed according to the power consumption required by the electric vehicle, with strong compatibility; thirdly, the battery packs are set in boxes, compared to For transporting the entire battery pack, each independent battery pack does not need to use large transportation equipment to transport the divided battery packs, reducing the requirements for battery replacement equipment. In addition, multiple battery packs are arranged along the width direction of the body body, and the structure is compact. It can better utilize the space between the body beams and both sides to arrange the battery packs, save installation space, and also make better use of the body body. A locking mechanism is provided in the length direction, which is beneficial to the load-bearing stability of the battery pack and also provides convenience for simultaneous battery swapping on both sides.

Description of drawings

Figure 1 is a schematic structural diagram of a quick-change bracket according to Embodiment 1 of the present invention.

Figure 2 is a schematic diagram of the assembly of the quick-change bracket and the battery pack according to Embodiment 1 of the present invention.

Figure 3 is a schematic diagram of the installation of the quick-change bracket according to Embodiment 1 of the present invention.

Figure 4 is a schematic structural diagram of the electric vehicle according to Embodiment 1 of the present invention.

Figure 5 is a schematic structural diagram of the battery pack according to Embodiment 1 of the present invention.

Figure 6 is a schematic structural diagram of the locking mechanism according to Embodiment 1 of the present invention.

FIG. 7 is a schematic diagram of the cooperation between the second limiting mechanism and the second limiting part in Embodiment 1 of the present invention.

Figure 8 is a schematic structural diagram of a quick-change bracket according to Embodiment 2 of the present invention.

Figure 9 is a schematic diagram of the assembly of the quick-change bracket and the battery pack according to Embodiment 2 of the present invention.

Figure 10 is a schematic diagram of the installation of the quick-change bracket according to Embodiment 2 of the present invention.

Figure 11 is a schematic structural diagram of an electric vehicle according to Embodiment 2 of the present invention.

Figure 12 is a schematic structural diagram of a quick-change bracket according to Embodiment 3 of the present invention.

Figure 13 is a schematic diagram of the assembly of the quick-change bracket and the battery pack according to Embodiment 3 of the present invention.

Figure 14 is a schematic diagram of the installation of the quick-change bracket according to Embodiment 3 of the present invention.

Figure 15 is a schematic structural diagram of an electric vehicle according to Embodiment 3 of the present invention.

Figure 16 is a schematic structural diagram of a quick-change bracket according to Embodiment 4 of the present invention.

Figure 17 is a schematic diagram of the assembly of the quick-change bracket and the battery pack according to Embodiment 4 of the present invention.

Figure 18 is a schematic diagram of the installation of the quick-change bracket according to Embodiment 4 of the present invention.

Figure 19 is a schematic structural diagram of an electric vehicle according to Embodiment 4 of the present invention.

Explanation of reference symbols:
Body body 1; vehicle beam 11; quick-change bracket 2; battery pack storage area 21; locking mechanism 211; locking bracket 2111; channel 21111;
First locking part 2112; second locking part 2113; sub-bracket 22; first cross beam 221; first longitudinal beam 222; mounting beam 23; first mounting plate 231; second mounting plate 232; avoidance opening 2321; reinforcement Reinforcement 233; bracket body 24; second cross beam 241; second longitudinal beam 242; partition 25; sub-bracket 26; segmented beam 261; connecting plate 262; vehicle end connector 27; installation assembly 28; installation rod 281; Installation block 282; first limiting mechanism 3; guide surface 31; second limiting mechanism 4; limiting protrusion 41; battery pack 5; locking member 51; first limiting Position portion 52; second limiting portion 53; limiting seat 531; elastic piece 5311; guide slope 53111; battery terminal connector 54; electric vehicle 6

Detailed ways

The present invention will be more clearly and completely described below by means of examples and in conjunction with the accompanying drawings, but the present invention is not therefore limited to the scope of the following examples.

Example 1

Please refer to FIGS. 1 to 7 at the same time. An embodiment of the present invention provides an electric vehicle 6 . The electric vehicle 6 includes a body body 1, a quick-change bracket 2 and a plurality of battery packs 5. The quick-change bracket 2 is connected to the vehicle beam 11 of the body body 1. The quick-change bracket 2 forms a plurality of battery packs along the width direction of the body body 1. Accommodation area 21, each battery pack accommodation area 21 is provided with a locking mechanism 211. The battery pack 5 has a locking piece 51. The locking piece 51 is detachably connected to the locking mechanism 211. Multiple battery packs 5 are respectively locked by The components 51 are independently connected to the corresponding battery pack receiving areas 21 , and the plurality of battery packs 5 are arranged side by side along the width direction of the vehicle body 1 . Multiple battery packs 5 are respectively installed through multiple battery pack receiving areas 21 , and multiple battery packs 5 are arranged side by side and fixed on the body body 1 of the electric vehicle 6 through the quick-change brackets 2 along the width direction of the body body 1 , realizing the battery Packaging and boxing design. First, multiple independent battery packs 5 are used. Compared with a large battery pack in a traditional design, when the electric vehicle 6 requires the same capacity, each independent battery pack 5 has a smaller relative volume and weight. , easy to install and conducive to the standardization of battery packs; secondly, after the battery packs are placed in boxes, different numbers of battery packs 5 can be installed according to the power consumption required by the electric vehicle 6, and the compatibility is strong; thirdly , the battery pack is divided into boxes. Compared with transporting the entire battery pack, each independent battery pack 5 does not need to use large-scale transportation equipment to transport the divided battery packs, which reduces the requirements for battery replacement equipment. In addition, multiple battery packs are arranged along the width direction of the body body 1, and the structure is compact, which can better utilize the space between the body beams 11 and both sides to arrange the battery packs, save installation space, and also make better use of the body. A locking mechanism is provided in the length direction of the body 1, which is beneficial to the load-bearing stability of the battery pack 5 and also provides convenience for simultaneous battery swapping on both sides.

Along the length direction of the vehicle body 1 , the locking mechanisms 211 are distributed on at least one side of the battery pack receiving area 21 , and the side walls of the battery pack 5 are provided with locking pieces 51 that cooperate with the locking mechanisms 211 . The locking mechanism 211 is located on at least one side of the battery pack receiving area 21. Correspondingly, the locking member 51 is located on the side wall of the battery pack 5. The space layout is reasonable so that the battery pack 5 can be locked when entering the battery pack receiving area 21. The connection between the stopper 51 and the locking mechanism 211. Preferably, along the length direction of the vehicle body 1 , the locking mechanisms 211 are distributed on both sides of the battery pack receiving area 21 . The locking mechanism 211 is located on both sides of the battery pack receiving area 21, and the locking points are located on both sides of the battery pack 5, so that both sides of the battery pack 5 can be connected to the battery pack receiving area 21 to improve balance.

In other embodiments, as an alternative means, the locking mechanism 211 is distributed on at least one side of the battery pack receiving area 21 along the width direction of the vehicle body 1 , and the side wall of the battery pack 5 is provided with a locking mechanism 211 that cooperates with the locking mechanism 211 . Locking piece 51. Preferably, along the width direction of the vehicle body 1 , the locking mechanisms 211 are distributed on both sides of the battery pack receiving area 21 . Alternatively, along the length direction of the vehicle body 1 , the locking mechanisms 211 are distributed on at least one side of the battery pack receiving area 21 , and the side walls of the battery pack 5 are provided with locking pieces 51 that cooperate with the locking mechanisms 211 ; In the width direction, the locking mechanism 211 is distributed on at least one side of the battery pack receiving area 21 , and the side wall of the battery pack 5 is provided with a locking piece 51 that cooperates with the locking mechanism 211 . Preferably, the locking mechanisms 211 are distributed around the battery pack receiving area 21, and the locking parts 51 on the surrounding side walls of the battery pack 5 are fixed in the battery pack containing area 21 through the locking mechanisms 211, so that the locking effect is stable. This further prevents the battery pack 5 from falling.

Along the width direction of the vehicle body 1 , at least two locking mechanisms 211 are provided on at least one side of the battery pack receiving area 21 , and the at least two locking mechanisms 211 are spaced apart along the length direction of the vehicle body 1 . On one side of the battery pack accommodation area 21, multiple locking points are provided between the battery pack 5 and the battery pack accommodation area 21. The battery pack 5 is fixed in the battery pack accommodation area 21 through multiple locking mechanisms 211 to improve the efficiency of the battery pack accommodation. The battery pack 5 is locked in the quick-change bracket 2 to ensure reliability and stability. Preferably, at least two locking mechanisms 211 are provided on both sides of the battery pack receiving area 21 along the width direction of the vehicle body 1 .

In other embodiments, as an alternative means, at least two locking mechanisms 211 are provided on one side of the battery pack receiving area 21 along the length direction of the body body 1 , and at least two locking mechanisms 211 are provided along the length direction of the body body 1 . Width spacing setting. Preferably, at least two locking mechanisms 211 are provided on both sides of the battery pack receiving area 21 along the length direction of the vehicle body 1 . Alternatively, along the width direction of the vehicle body 1 , at least two locking mechanisms 211 are provided on at least one side of the battery pack receiving area 21 , and the at least two locking mechanisms 211 are spaced apart along the length direction of the vehicle body 1 ; along the vehicle body 1 In the length direction, at least two locking mechanisms 211 are provided on one side of the battery pack containing area 21 , and the at least two locking mechanisms 211 are spaced apart along the width direction of the vehicle body 1 . Preferably, along the width direction of the vehicle body 1 , at least two locking mechanisms 211 are provided on both sides of the battery pack accommodation area 21 ; along the length direction of the vehicle body 1 , at least two locking mechanisms 211 are provided on both sides of the battery pack accommodation area 21 . At least two locking mechanisms 211.

Along the height direction of the battery pack 5 , the locking member 51 is located in the middle or below the middle of the battery pack 5 . The connection with the locking mechanism 211 is achieved through the locking member 51 located in the middle or below the middle of the battery pack 5. The connection point is located in the middle or below the middle of the battery pack 5, which reduces the area where the battery pack 5 needs to be suspended and improves locking stability. high.

Of course, in other embodiments, along the height direction of the battery pack 5 , the locking member 51 may also be located in an area above the middle of the battery pack 5 .

Along the height direction of the vehicle body 1 , the battery pack 5 is located at the bottom of the vehicle beam 11 . The installation space of the battery pack 5 is arranged at the bottom of the vehicle beam 11, making full use of the space under the vehicle beam 11, which is beneficial to improving the rationality of the space layout, increasing the distance from the ground on the lower surface of the battery pack 5, and making it easier for battery replacement equipment to enter and exit the battery pack. 5 bottom.

In other embodiments, along the height direction of the vehicle body 1 , the battery pack 5 is partially higher than the lower surface of the vehicle beam 11 , which effectively improves space utilization, increases the distance from the ground of the lower surface of the battery pack 5 , and facilitates the entry and exit of battery swapping equipment. Bottom of battery pack 5.

Some battery packs 5 are located on both sides of the vehicle beam 11 , and some battery packs 5 are installed on both sides of the vehicle beam 11 to improve the balance of the vehicle beam 11 , thereby improving the stability of the electric vehicle 6 during its driving.

In other embodiments, as an alternative, part of the battery pack 5 is located between the two vehicle beams 11 . Part of the battery pack 5 is installed between the two vehicle beams 11, making full use of the space between the two vehicle beams 11, and the space layout is reasonable. Alternatively, some battery packs 5 are located on both sides of the vehicle beam 11 , and some battery packs 5 are located between the two vehicle beams 11 .

The quick-change bracket 2 includes a plurality of sub-brackets 22 . The sub-brackets 22 include a first cross beam 221 and a first longitudinal beam 222 . The first cross beam 221 is arranged along the width direction of the vehicle body 1 . The first longitudinal beam 222 is arranged along the width direction of the vehicle body 1 . Arranged in the length direction, the first cross beam 221 and the first longitudinal beam 222 are connected end to end to form the battery pack receiving area 21 . A locking mechanism 211 is provided on the side of the first longitudinal beam 222 facing the battery pack containing area 21 . In the first aspect, the first cross beam 221 and the first longitudinal beam 222 are connected end to end in sequence to form a frame structure, which is beneficial to improving the strength of the sub-frame 22 . Secondly, the space formed by the first cross beam 221 and the first longitudinal beam 222 being connected end to end is used as the battery pack storage area 21, and the spatial layout is reasonable. Thirdly, the damage of the independent sub-bracket 22 does not affect the use of other sub-brackets 22, and there is no need to replace the entire sub-bracket 22. Each quick-change bracket 2 saves costs and has high replaceability of parts; in addition, the sub-brackets 22 are processed separately to facilitate processing. In the fourth aspect, the locking mechanism 211 is provided on the side of the first longitudinal beam 222 close to the battery pack receiving area 21, and the space layout is reasonable, so that when the battery pack 5 enters the battery pack receiving area 21, the locking member 51 and Connection of locking mechanism 211.

There are no less than two sub-brackets 22. At least two sub-brackets 22 are located at least partially outside the vehicle beam 11. A battery pack receiving area 21 is formed between two adjacent sub-brackets 22. The two adjacent sub-brackets 22 are Locking mechanisms 211 are respectively provided on the outer sides of the first longitudinal beams 222 . The space between two adjacent sub-brackets 22 is used as the battery pack storage area 21, so that the space layout is reasonable and materials are saved. Locking mechanisms 211 are respectively provided on the outer sides of the two adjacent first longitudinal beams 222 of the two adjacent sub-supports 22 , so that both sides of the battery pack receiving area 21 formed between the two adjacent sub-supports 22 are provided with locking mechanisms 211 . The locking mechanism 211 realizes the feasibility of locking the battery pack 5 in the battery pack receiving area 21, and also allows both sides of the battery pack 5 to be connected to the battery pack receiving area 21 to improve balance.

The quick-change bracket 2 includes a mounting beam 23, and at least part of the sub-bracket 22 is connected to the vehicle beam 11 through the mounting beam 23. The connection between the sub-bracket 22 and the vehicle beam 11 is achieved through the mounting beam 23, ensuring that the sub-bracket 22 is installed stably and reliably.

The mounting beam 23 is connected to the top, side or bottom of the vehicle beam 11 . Making full use of the space at the top, side or bottom of the vehicle beam 11 to install the mounting beam 23 is beneficial to improving the rationality of the space layout.

Specifically, the mounting beam 23 includes a first mounting plate 231 and a second mounting plate 232. The first mounting plate 231 and the second mounting plate 232 are connected to each other, and the first mounting plate 231 and the second mounting plate 232 are at a preset angle. setting to increase the strength of the installation beam 23. Reinforcing ribs 233 are connected between the first mounting plate 231 and the second mounting plate 232 to increase the strength of the mounting beam 23, reduce or avoid deformation or breakage of the mounting beam 23, and increase the service life of the mounting beam 23. Among them, the first mounting plate 231 and the second mounting plate 232 are arranged at 90 degrees. The first mounting plate 231 is connected to the side wall of the vehicle beam 11, and the second mounting plate 232 is connected to the first cross beam 221, and the ribs are strengthened. 233 adopts a plate-like structure, and along the length direction of the first mounting plate 231 or the second mounting plate 232, the number of reinforcing ribs 233 is multiple, and the multiple reinforcing ribs 233 are arranged at intervals.

The quick-change bracket 2 also includes a vehicle-side connector 27 and a mounting component 28. Each battery pack accommodation area 21 is provided with a mounting component 28. The mounting component 28 is connected to the quick-change bracket 2, and the vehicle-side connector 27 is provided on the mounting component. 28 on. By arranging the vehicle-side connector 27 in each battery pack receiving area 21, each battery pack 5 can be facilitated to independently supply power to the electric vehicle 6, thereby meeting the need for cartoning. The vehicle-end connector 27 is connected to the quick-change bracket 2 through the mounting component 28, and the connection is stable and reliable. The mounting component 28 can be installed using the free area in the battery pack accommodation area 21, and can avoid installation interference with the locking mechanism 211. , the installation space can be reserved for the vehicle-side connector 27 to avoid occupying other spaces, which is beneficial to improving the rationality of the space layout. Among them, the vehicle-end connector 27 may, but is not limited to, include a vehicle-end electrical connector and a vehicle-end liquid cooling connector, and the liquid cooling connector and the electrical connector are arranged on the mounting assembly 28 in sequence.

Specifically, a battery terminal connector 54 (which may, but is not limited to, include a battery terminal electrical connector and a battery terminal liquid cooling connector) that is connected to the vehicle terminal connector 27 is installed on the upper surface of the battery pack 5 . When entering the battery pack receiving area 21 to achieve locking, the battery terminal connector 54 is docked with the vehicle terminal connector 27 located above it. The battery pack 5 only needs to be displaced in the vertical direction, and no additional adjustments to the battery pack 5 are required. By moving forward, left, and right, the battery pack 5 can be connected to the vehicle-end connector 27, which is easy to install.

Specifically, the second mounting plate 232 is partially located in the battery pack receiving area 21, and an escape opening 2321 is provided on the part of the second mounting plate 232 located in the battery pack receiving area 21. The vehicle-end connector 27 is installed in the battery pack receiving area 21. It can be partially disposed in the avoidance opening 2321 to improve space utilization and avoid contact interference between the vehicle end connector 27 and the second mounting plate 232 .

As shown in Figure 1, the mounting assembly 28 includes a mounting rod 281 and a mounting block 282. The mounting rod 281 is connected to the side wall of the mounting block 282 and installed on the quick-change bracket 2. The mounting block 282 is used to install the vehicle-end connector. 27. The mounting block 282 used to install the vehicle-end connector 27 is fixed on the quick-change bracket 2 through the mounting rod 281. Compared with increasing the length of the mounting block 282, both ends of the mounting block 282 can be directly installed on the quick-change bracket. 2. Save the use of materials. The mounting block 282 adopts a plate-shaped member.

Specifically, two spaced apart mounting rods 281 are connected between adjacent first longitudinal beams 222, a mounting block 282 is connected between the two mounting rods 281, and the vehicle end connector 27 is provided on the mounting block 282. .

In other embodiments, the mounting assembly 28 includes a mounting plate, the mounting plate is connected to the quick-change bracket 2 , and the vehicle-end connector 27 is disposed on the mounting plate. The mounting plate for mounting the vehicle-end connector 27 is directly connected to the quick-change bracket 2, which is beneficial to improving assembly efficiency and facilitating parts processing.

Specifically, as shown in FIGS. 1 and 3 , the number of sub-brackets 22 is two. The two sub-brackets 22 are arranged along the width direction of the vehicle body 1 to form three battery pack accommodation areas 21 . The two sub-brackets 22 are respectively At least part of it is located outside the vehicle beam 11 , so that the battery pack 5 located in the middle is opposite to the vehicle body 1 and located below the vehicle beam 11 , and the battery packs 5 located on both sides are located on both sides of the vehicle beam 11 respectively. Among them, a locking mechanism 211 is provided on the side of the first longitudinal beam 222 in each sub-bracket 22 close to the respective battery pack receiving area 21. In addition, a locking mechanism 211 is provided on the two first longitudinal beams 222 located in the middle. A locking mechanism 211 is installed on one side of the battery pack receiving area 21 to lock the battery pack 5 located in the middle. The number of the mounting beams 23 is two, and the two mounting beams 23 are respectively installed on the two sub-brackets 22 to realize the connection between the sub-brackets 22 and the side walls of the vehicle beam 11 . In addition, installation assemblies 28 for installing the vehicle-side connector 27 are respectively installed in the two sub-brackets 22 , and the installation components 28 are also installed between the two sub-brackets 22 .

The quick-change bracket 2 is also provided with a first limiting mechanism 3 . The first limiting mechanism 3 is used to cooperate with the first limiting portion 52 on the top of the battery pack 5 to position the battery pack 5 . The positioning between the battery pack 5 and the quick-change bracket 2 is achieved through the first limiting mechanism 3 and the first limiting part 52 to guide the battery pack 5 when it is installed into the quick-change bracket 2. The installation accuracy of the battery pack 5 into the battery pack receiving area 21 improves the installation efficiency of the battery pack 5 . At the same time, after the battery pack 5 is installed on the quick-change bracket 2, the first limiting mechanism 3 and the first limiting part 52 that cooperate with each other can limit the battery pack 5 to prevent the battery pack 5 from being damaged during driving of the vehicle. Shake.

Specifically, one of the first limiting mechanism 3 and the first limiting part 52 is a positioning pin, and the other is a positioning hole. In this embodiment, the first limiting mechanism 3 is a positioning pin, and the first limiting part 52 is a positioning hole; in other implementations, the first limiting mechanism 3 can also be set as a positioning hole, and the first limiting portion 52 can be a positioning pin. Furthermore, the end of the positioning pin close to the positioning hole is provided with a guide surface 31 to facilitate the insertion of the positioning pin structure into the limiting hole. Among them, the outer diameter of the positioning pin transitions from small to large from the outer end to the end close to the positioning hole, which facilitates the insertion of the positioning pin into the positioning hole and allows a certain offset error, thus improving the alignment efficiency of the positioning pin when inserted into the positioning hole. Furthermore, the cross-sections of the positioning pins and positioning holes are non-circular, so that the matching positioning pins and positioning holes can not only constrain the freedom of the battery pack 5 along the width direction and length direction of the vehicle body 1, but also can Constrain the rotation of the battery pack 5. Alternatively, the end of the positioning pin close to the positioning hole is provided with a guide surface 31, and the cross-sections of the positioning pin and the positioning hole are non-circular.

Specifically, a positioning hole is provided on the top of the battery pack 5 as the first limiting part 52 , and a positioning pin matching the positioning hole is installed on the mounting rod 281 as the first limiting mechanism 3 . When the battery pack 5 enters the battery pack receiving area 21 from bottom to top, the first limiting mechanism 3 and the first limiting part 52 can be connected to each other. In other embodiments, the first limiting part may also be provided on other parts of the quick-change bracket. The position is not specifically limited in this embodiment.

In another implementation, the battery pack receiving area 21 is provided with second limiting mechanisms 4 on all four sides, and the side walls of the battery pack 5 are provided with second limiting portions 53 that cooperate with the second limiting mechanisms 4. One of the limiting mechanism 4 and the second limiting part 53 is a limiting seat 531, and the other is a limiting protrusion 41. The limiting seat 531 is provided with an elastic piece 5311, and the limiting protrusion 41 abuts against the elastic piece 5311. catch. Wherein, the second limiting mechanism 4 is a limiting protrusion 41, and the second limiting part 53 is a limiting seat 531; or, the second limiting mechanism 4 is a limiting seat 531, and the second limiting part 53 is a limiting seat. Bump 41. The limiting seat 531 provides installation space for the elastic piece 5311. The elastic piece 5311 is used to prevent rigid collision between the battery pack 5 and the quick-change bracket 2 to achieve elastic buffering. The elastic piece 5311 cooperates with the limiting protrusion 41 to limit the battery pack. 5 in the battery pack receiving area 21 to prevent the battery pack 5 from being damaged.

Specifically, the end of the elastic piece 5311 is inclined to form a guide slope 53111. The guide slope 53111 makes the elastic piece 5311 have better elasticity and better guidance. When the battery pack 5 is installed into the battery pack receiving area 21 from bottom to top, the guide slope 53111 first contacts the limiting protrusion 41, which can lower the The risk of hard collision between the battery pack 5 and the quick-change bracket 2.

The quick-change bracket 2 also includes a protective plate covering the top of the battery pack 5 . The top of the battery pack 5 is covered with a protective plate to prevent dust, rainwater and other debris from entering the battery pack receiving area 21 to avoid affecting the performance of the battery pack 5 .

Specifically, the protection plate is installed inside the sub-bracket 22 and is detachably connected or integrally formed with the sub-bracket.

The side of the protective plate facing the top of the battery pack 5 is provided with a buffer pad. The buffer pad can prevent the battery pack 5 from being scratched on the surface of the battery pack when it is moved, thereby protecting the battery pack 5 and also reducing the battery pack 5 The shaking. In addition, the vehicle-end connector 27 can be installed on the protective plate. There is a gap between the battery pack 5 and the protective plate in the area other than the connection point of the vehicle-end connector 27. A buffer pad can compensate for this gap and ensure uniform load distribution. Alternatively, an escape portion is provided on the side of the protection plate facing the top of the battery pack 5 . An avoidance part is provided in the protection plate to facilitate wiring. The vehicle-end connector 27 can also be installed in the avoidance part. The space layout is reasonable to avoid contact interference between the vehicle-end connector 27 and the protection plate.

In other embodiments, a buffer pad is provided on the side of the protective plate facing the top of the battery pack 5 , and an avoidance portion is provided on the side of the protective plate facing the top of the battery pack 5 .

As shown in Figure 6, in this embodiment, the locking mechanism 211 includes a locking bracket 2111. The locking bracket 2111 is provided with a channel 21111 extending in the direction of gravity. The locking mechanism 211 also includes a first locking portion 2112 and a second locking portion 2112. Locking part 2113, the first locking part 2112 is rotatably installed on the locking bracket 2111; the first locking part 2112 is configured to prevent the first locking part 2111 from being located in the channel 21111 when it rotates to the locking position. The locking part 51 moves downward to lock the locking part 51; the second locking part 2113 is configured to prevent the first locking part 2112 from rotating when the first locking part 2112 rotates to the locking position. The first locking part 2112 is maintained in the locking position. The locking member 51 enters the locking mechanism 211 from bottom up through the channel 21111 extending in the direction of gravity, and rotates to the locking position through the first locking portion 2112 to lock the locking member 51. The first locking portion 2112 realizes the locking of the locking member 51 while the second locking part 2113 limits the first locking part 2112. The locking is convenient and reliable, which is conducive to improving the efficiency of installation and disassembly of the battery pack 5, and is conducive to achieving Quick replacement of battery pack 5.

Specifically, the first locking part 2112 is a ratchet, and the second locking part 2113 is a pawl; the ratchet is configured to be driven by the locking part 51 to move along the first direction when the locking part 51 moves from bottom to upward. The first direction is the rotation of the first locking part 2112 in the counterclockwise direction in Figure 6; the ratchet is configured to engage with the ratchet wheel to prevent the locking part 51 from moving upward into the channel 21111 Stop the ratchet from rotating. The cooperation of the ratchet and the pawl can ensure the reliability of locking the locking member 51 and the reliability of the installation of the battery pack 5 on the quick-change bracket 2 . Moreover, when it is necessary to unlock the battery pack 5, just separate the pawl and the ratchet wheel, which is easy and fast to operate.

It should be noted that the locking mechanism 211 in this embodiment can be any locking mechanism 211 that can enable the battery pack 5 to be connected to the electric vehicle 6 in a vertical direction (straight up and down), such as a bolt-type locking mechanism, an expansion bead, etc. Type locking mechanism, T-type locking mechanism, hook-type locking mechanism, etc.

The electric vehicle 6 is an electric truck. As an electric truck of a large electric vehicle 6, due to the high demand for the capacity of the battery pack 5, the battery packs are arranged in separate boxes to facilitate the replacement of the battery packs and save labor when replacing the battery packs.

In another embodiment, the battery pack accommodation area 21 includes a plurality of sub-accommodation areas arranged side by side along the length direction of the vehicle body 1 , and the sub-accommodation areas are used to independently install the battery pack 5 . In other words, along the length direction and width direction of the vehicle body 1 , the area for installing the battery pack 5 in the quick-change bracket 2 is divided into multiple sub-areas so that the battery packs 5 can be installed independently. Multiple sub-accommodation areas are provided in the battery pack accommodation area 21, so that the volume and weight of each battery pack adapted to each sub-accommodation area can be further reduced, which facilitates installation and can further reduce the requirements for battery replacement equipment; in addition, the sub-accommodation areas It is arranged along the length direction of the body of the electric vehicle 6, making full use of the space along the length direction of the body, and the structure is compact, which is conducive to improving the rationality of the space layout. Specifically, between two adjacent first longitudinal beams 222, multiple sub-accommodation areas are provided along the length direction of the vehicle body 1.

Example 2

Please refer to FIGS. 8 to 11 at the same time. An embodiment of the present invention provides an electric vehicle 6 . The difference from the solution in Embodiment 1 is that the number of sub-brackets 22 is no less than three, some of the sub-brackets 22 are located between the two vehicle beams 11 , and some of the sub-brackets 22 are at least partially located outside the corresponding vehicle beams 11 . No less than three sub-brackets 22 are respectively located between the two vehicle beams 11 and outside the vehicle beam 11 , fully utilizing the space at the bottom of the vehicle beam 11 and on both sides of the vehicle beam 11 , and achieving high space utilization.

Specifically, as shown in FIGS. 8 and 10 , the number of sub-brackets 22 is three. The three sub-brackets 22 are arranged along the width direction of the vehicle body 1 to form three battery pack accommodation areas 21 . The two outer sub-brackets 22 are 22 are located at least partially outside the vehicle beam 11 , so that the middle sub-bracket 22 is opposite to the vehicle body 1 and located below the vehicle beam 11 , and the battery packs 5 located on both sides are respectively located on both sides of the vehicle beam 11 . Among them, a locking mechanism 211 is provided on the side of the first longitudinal beam 222 in each sub-bracket 22 close to the respective battery pack receiving area 21 . There are two mounting beams 23 . The sub-bracket 22 located in the middle is directly connected to the vehicle beam 11 , and the sub-brackets 22 located on both sides are respectively installed on the vehicle beam 11 through the mounting beams 23 . In addition, installation assemblies 28 for installing the vehicle end connector 27 are respectively installed in the three sub-brackets 22 .

In another embodiment, the battery pack accommodation area 21 includes a plurality of sub-accommodation areas arranged side by side along the length direction of the vehicle body 1 , and the sub-accommodation areas are used to independently install the battery pack 5 . In other words, along the length direction and width direction of the vehicle body 1 , the area for installing the battery pack 5 in the quick-change bracket 2 is divided into multiple sub-areas so that the battery packs 5 can be installed independently. Multiple sub-accommodation areas are provided in the battery pack accommodation area 21, so that the volume and weight of each battery pack adapted to each sub-accommodation area can be further reduced, which facilitates installation and can further reduce the requirements for battery replacement equipment; in addition, the sub-accommodation areas It is arranged along the length direction of the body of the electric vehicle 6, making full use of the space along the length direction of the body, and the structure is compact, which is conducive to improving the rationality of the space layout. Specifically, inside the sub-bracket 22 that forms the same battery pack accommodating area 21, multiple sub-accommodating areas are provided along the length direction of the vehicle body 1.

Example 3

Please refer to FIGS. 12 to 15 at the same time. An embodiment of the present invention provides an electric vehicle 6 . The difference from the solution in Embodiment 1 is that the quick-change bracket 2 includes a bracket body 24 and a partition 25. The partition 25 is connected to the bracket body 24. The partition 25 separates the bracket body 24 to form at least two battery packs. In the accommodation area 21, along the width direction of the vehicle body 1, a locking mechanism 211 is provided on at least one side of the partition 25. The internal area of the bracket body 24 is divided into at least two battery pack storage areas 21 by the partition 25 to form at least two independent battery pack storage areas 21. The bracket body 24 adopts an integral structure, which has high structural strength and is conducive to saving installation space. .

The bracket body 24 includes a second cross beam 241 and a mounting beam 23. The mounting beam 23 is connected to the vehicle beam 11. The second beam 241 is arranged along the width direction of the vehicle body 1. The second beam 241 is connected to both ends of the mounting beam 23. The partition 25 Both ends of are respectively connected to the second beam 241. The connection between the second cross beam 241 and the vehicle beam 11 is realized through the mounting beam 23. The second cross beam 241 is connected to both ends of the mounting beam 23 to strengthen the connection between the second cross beam 241 and the mounting beam 23. In addition, the two ends of the partition 25 are respectively connected to the second cross beam 241, and the connection effect is stable and the separation of the partition 25 is prevented.

The bracket body 24 also includes a second longitudinal beam 242. The second longitudinal beam 242 is arranged along the length direction of the vehicle body 1. The second longitudinal beam 242 and the second cross beam 241 are connected end to end in sequence. The second longitudinal beam 242 faces one side of the partition 25. A locking mechanism 211 is provided on the side wall. The second longitudinal beam 242 and the second cross beam 241 are connected end to end in sequence to form a frame structure, thereby improving the strength of the bracket body 24 . In addition, a locking mechanism 211 is also provided on the side of the second longitudinal beam 242 facing the partition 25, so that both sides of the battery pack 5 are locked with the locking mechanism 211, further improving the reliability of the connection between the battery pack 5 and the quick-change bracket 2 sex.

Specifically, as shown in FIGS. 12 and 14 , the bracket body 24 includes two second cross beams 241 extending along the width direction of the vehicle body 1 and two second beams 241 extending along the length of the vehicle body 1 . The second longitudinal beam 242, the second longitudinal beam 242 and the second cross beam 241 are connected end to end to form a frame structure. Two spaced apart partitions 25 are connected between the two second cross beams 241. The two partitions 25 connect the bracket. The body 24 is divided into three battery pack receiving areas 21 . Among them, the number of the mounting beams 23 is two. The two ends of the mounting beams 23 are respectively installed on the two second cross beams 241 and connected to the side walls of the vehicle beam 11, thereby realizing the installation of the quick-change bracket 2 on the vehicle beam 11. . In addition, a mounting assembly 28 is installed between the two partitions 25 , and a mounting assembly 28 is installed between the partition 25 and its adjacent second longitudinal beam 242 , so that each battery pack accommodation area is provided with a vehicle-end connection for installation. Installation assembly 28 of device 27.

In another embodiment, the battery pack accommodation area 21 includes a plurality of sub-accommodation areas arranged side by side along the length direction of the vehicle body 1 , and the sub-accommodation areas are used to independently install the battery pack 5 . In other words, along the length direction and width direction of the vehicle body 1 , the area for installing the battery pack 5 in the quick-change bracket 2 is divided into multiple sub-areas so that the battery packs 5 can be installed independently. Multiple sub-accommodation areas are provided in the battery pack accommodation area 21, so that the volume and weight of each battery pack adapted to each sub-accommodation area can be further reduced, which facilitates installation and can further reduce the requirements for battery replacement equipment; in addition, the sub-accommodation areas It is arranged along the length direction of the body of the electric vehicle 6, making full use of the space along the length direction of the body, and the structure is compact, which is conducive to improving the rationality of the space layout. Specifically, between two adjacent partitions 25, multiple sub-accommodation areas are provided along the length direction of the vehicle body 1; between the partitions 25 and the second longitudinal beam 242, multiple sub-accommodation areas are provided along the length direction of the vehicle body 1. accommodation area.

Example 4

Please refer to FIGS. 16 to 19 at the same time. An embodiment of the present invention provides an electric vehicle 6 . The difference from the solution in Embodiment 1 is that the quick-change bracket 2 includes two sets of sub-brackets 26 spaced apart along the width direction of the vehicle body 1. At least one side of the sub-brackets 26 forms a battery pack receiving area 21. The sub-brackets 26 It includes a plurality of segmented beams 261 spaced apart along the length direction of the vehicle body 1 . The segmented beams 261 are connected to the vehicle beam 11 . A locking mechanism 211 is provided on at least the outer side wall of the segmented beams 261 . The number of sub-brackets 26 can be increased or reduced according to actual needs, which provides high flexibility and facilitates improvement of the stability of battery pack installation.

Each segmented beam 261 is provided with a connecting plate 262 connected to the vehicle beam 11 , and the connecting plate 262 is offset from the locking mechanism 211 . A connecting plate 262 is provided on each segmented beam 261 to realize a stable connection between the single segmented beam 261 and the vehicle beam 11 and save the required material of the connecting plate 262.

Specifically, the vehicle beam 11 is set up above the segmented beam 261 , and the connecting plate 262 extends from the segmented beam 261 in a direction away from the vehicle beam 11 and fits the corners of the vehicle beam 11 . The connecting plate 262 is attached to the corners of the vehicle beam 11 to enhance the stability of the connection between the connecting plate 262 and the vehicle beam 11 .

Specifically, as shown in FIGS. 16 and 18 , the quick-change bracket 2 includes two sets of sub-brackets 26 spaced apart along the width direction of the vehicle body 1 to form three parallel battery pack receiving areas 21 . The number of each group of brackets 26 is three, and the three sub-brackets 26 in each group are spaced apart along the length direction of the vehicle body 1 . Each sub-bracket 26 includes a segmented beam 261 and a locking mechanism 211 and a connecting plate 262 installed on the segmented beam 261. The locking mechanism 211 and the connecting plate 262 are staggered, and two sides of the segmented beam 261 are respectively provided. There are two locking mechanisms 211, and the connecting plate 262 is installed between the two locking mechanisms 211. In addition, along the length direction of the body body 1, a mounting assembly 28 is installed between the two sub-brackets 26 located in the middle, and a mounting assembly 28 is also installed outside the two sub-brackets 26 located in the middle, so that each battery pack A mounting assembly 28 for mounting the vehicle end connector 27 is provided in the accommodation area.

In another embodiment, the battery pack accommodation area 21 includes a plurality of sub-accommodation areas arranged side by side along the length direction of the vehicle body 1 , and the sub-accommodation areas are used to independently install the battery pack 5 . In other words, along the length direction and width direction of the vehicle body 1 , the area for installing the battery pack 5 in the quick-change bracket 2 is divided into multiple sub-areas so that the battery packs 5 can be installed independently. Multiple sub-accommodation areas are provided in the battery pack accommodation area 21, so that the volume and weight of each battery pack adapted to each sub-accommodation area can be further reduced, which facilitates installation and can further reduce the requirements for battery replacement equipment; in addition, the sub-accommodation areas It is arranged along the length direction of the body of the electric vehicle 6, making full use of the space along the length direction of the body, and the structure is compact, which is conducive to improving the rationality of the space layout. Specifically, between the two component brackets 26, multiple sub-accommodating areas are provided along the length direction of the vehicle body 1; outside each component bracket 26, multiple sub-accommodating areas are provided along the length direction of the vehicle body 1.

Example 5

An embodiment of the present invention provides an electric vehicle 6 . The difference from the solution in Embodiment 1 is that the quick-change bracket 2 includes two fixed beams spaced apart along the width direction of the vehicle body 1. The fixed beams are connected to the vehicle beam 11, and at least one side of the fixed beams forms a battery pack accommodation. Area 21, and a locking mechanism 211 is provided on at least the outer side wall of the fixed beam. The fixed beam can not only realize the installation of the battery pack 5, but also realize the connection between the quick-change bracket 2 and the electric vehicle 6. It has a simple structure and is easy to operate, which is beneficial to saving costs and improving assembly efficiency.

Specifically, two fixed beams spaced apart along the width direction of the vehicle body 1 form three battery pack receiving areas 21 , and two of each fixed beam are provided with locking mechanisms 211 to achieve connection with the battery pack 5 , and The upper end of each fixed beam is installed on the side of the vehicle beam 11 wall. Among them, the fixed beam adopts a plate structure to facilitate processing. In addition, a mounting component 28 is installed between the two fixed beams, and a mounting component 28 is also installed on the outside of each fixed beam, so that each battery pack receiving area is provided with a mounting component 28 for installing the vehicle-end connector 27 .

In another embodiment, the battery pack accommodation area 21 includes a plurality of sub-accommodation areas arranged side by side along the length direction of the vehicle body 1 , and the sub-accommodation areas are used to independently install the battery pack 5 . In other words, along the length direction and width direction of the vehicle body 1 , the area for installing the battery pack 5 in the quick-change bracket 2 is divided into multiple sub-areas so that the battery packs 5 can be installed independently. Multiple sub-accommodation areas are provided in the battery pack accommodation area 21, so that the volume and weight of each battery pack adapted to each sub-accommodation area can be further reduced, which facilitates installation and can further reduce the requirements for battery replacement equipment; in addition, the sub-accommodation areas It is arranged along the length direction of the body of the electric vehicle 6, making full use of the space along the length direction of the body, and the structure is compact, which is conducive to improving the rationality of the space layout. Specifically, between the two fixed beams, multiple sub-accommodating areas are provided along the length direction of the vehicle body body 1; outside each fixed beam, multiple sub-accommodating areas are provided along the length direction of the vehicle body body 1.

Although specific embodiments of the present invention have been described above, those skilled in the art will understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims (20)

1. An electric vehicle, characterized in that the electric vehicle includes:

   Body body;

   Quick-change bracket, the quick-change bracket is connected to the vehicle beam of the vehicle body, and the quick-change bracket forms a plurality of battery pack storage areas along the width direction of the vehicle body body. Each battery pack storage area has Equipped with locking mechanism;

   A plurality of battery packs, the battery pack has a locking piece, the locking piece is detachably connected to the locking mechanism, and the plurality of battery packs are independently connected to the corresponding battery through the locking piece. A storage area is included, in which a plurality of battery packs are arranged side by side along the width direction of the vehicle body.
2. The electric vehicle according to claim 1, wherein the locking mechanism is distributed on at least one side of the battery pack containing area along the length and/or width direction of the vehicle body;

   Along the length and/or width direction of the vehicle body, the side wall of the battery pack is provided with the locking piece that cooperates with the locking mechanism;

   Preferably, at least two locking mechanisms are provided on at least one side of the battery pack containing area along the width and/or length direction of the vehicle body, and at least two locking mechanisms are provided along the width and/or length directions of the vehicle body. length and/or width spacing settings.
3. The electric vehicle according to any one of claims 1 to 2, characterized in that, along the height direction of the battery pack, the locking member is located in the middle or an area below the middle of the battery pack.
4. The electric vehicle according to any one of claims 1 to 3, characterized in that, along the height direction of the vehicle body, the battery pack is located at the bottom of the vehicle beam, or the battery pack is partially higher than the vehicle body. Describe the lower surface of the beam.
5. The electric vehicle according to any one of claims 1 to 4, characterized in that part of the battery pack is located on both sides of the vehicle beam and/or part of the battery pack is located between two of the vehicle beams.
6. The electric vehicle according to any one of claims 1 to 5, characterized in that the quick-change bracket includes a plurality of sub-brackets, the sub-brackets include a first cross beam and a first longitudinal beam, and the first cross beam extends along The first longitudinal beam is arranged along the width direction of the vehicle body body, the first longitudinal beam is arranged along the length direction of the vehicle body body, and the first horizontal beam and the first longitudinal beam are connected end to end in order to form the battery pack receiving area, The locking mechanism is provided on the side of the first longitudinal beam facing the battery pack receiving area.
7. The electric vehicle according to claim 6, characterized in that there are no less than two sub-brackets, at least two of the sub-brackets are located at least partially outside the vehicle beam, and two adjacent sub-brackets are The battery pack storage area is formed between the brackets, and the locking mechanisms are respectively provided on the outsides of the two adjacent first longitudinal beams on the two sub-frames.
8. The electric vehicle according to claim 6 or 7, characterized in that the number of the sub-frames is no less than three, some of the sub-frames are located between two of the vehicle beams, and at least part of the sub-frames Located outside the corresponding vehicle beam.
9. The electric vehicle according to any one of claims 6 to 8, wherein the quick-change bracket includes a mounting beam, and at least part of the sub-bracket is connected to the vehicle beam through the mounting beam.
10. The electric vehicle according to any one of claims 1 to 9, wherein the quick-change bracket includes a bracket body and a partition, the partition is connected to the bracket body, and the partition connects the bracket The bracket body is divided to form at least two battery pack receiving areas, and the locking mechanism is provided on at least one side of the partition along the width direction of the vehicle body body.
11. The electric vehicle according to claim 10, wherein the bracket body includes a second cross beam and a mounting beam, the mounting beam is connected to the vehicle beam, and the second cross beam extends along the width direction of the body body. It is configured that the second cross beam is connected to both ends of the mounting beam, and the two ends of the partition are respectively connected to the second cross beam;

    Preferably, the bracket body further includes a second longitudinal beam, the second longitudinal beam is arranged along the length direction of the vehicle body body, the second longitudinal beam and the second cross beam are connected end to end in sequence, and the second longitudinal beam The locking mechanism is provided on the side wall of the side of the beam facing the partition.
12. The electric vehicle according to claim 9 or 11, wherein the mounting beam is connected to the top, side or bottom of the vehicle beam.
13. The electric vehicle according to any one of claims 1 to 12, wherein the quick-change bracket includes two sets of sub-brackets spaced apart along the width direction of the vehicle body, and at least one of the sub-brackets The battery pack storage area is formed on the side, and the sub-bracket includes a plurality of segmented beams spaced along the length direction of the vehicle body body. The segmented beams are connected to the vehicle beam. The segmented beams are The locking mechanism is provided on at least the outer side wall;

    Preferably, each segmented beam is provided with a connecting plate connected to the vehicle beam, and the connecting plate is offset from the locking mechanism.
14. The electric vehicle according to any one of claims 1 to 13, wherein the quick-change bracket includes two fixed beams spaced apart along the width direction of the vehicle body, and the fixed beams are connected to the As for the vehicle beam, at least one side of the fixed beam forms the battery pack receiving area, and the locking mechanism is provided on at least an outer wall of the fixed beam.
15. The electric vehicle according to any one of claims 1 to 14, wherein the quick-change bracket further includes a vehicle-end connector and a mounting component, and each battery pack receiving area is provided with a mounting component. The mounting component is connected to the quick-change bracket, and the vehicle-end connector is provided on the mounting component;

    Preferably, the installation assembly includes a mounting rod and a mounting block. The mounting rod is connected to the side wall of the mounting block and installed on the quick-change bracket. The mounting block is used to install the vehicle end. Connector;

    Or, the mounting assembly includes a mounting plate, the mounting plate is connected to the quick-change bracket, and the vehicle end connector is provided on the mounting plate.
16. The electric vehicle according to any one of claims 1 to 15, characterized in that the quick-change bracket is further provided with a first limiting mechanism, and the first limiting mechanism is used to connect with the battery pack. The first limiting portion on the top cooperates to position the battery pack.
17. The electric vehicle according to any one of claims 1 to 16, characterized in that second limiting mechanisms are respectively provided on all four sides of the battery pack receiving area, and the side walls of the battery pack are provided with said The second limiting part cooperates with the second limiting mechanism. One of the second limiting mechanism and the second limiting part is a limiting seat, and the other is a limiting protrusion. The limiting seat has An elastic piece is provided, and the limiting protrusion is in contact with the elastic piece.
18. The electric vehicle according to any one of claims 1 to 17, wherein the quick-change bracket further includes a protective plate covering the top of the battery pack;

    Preferably, a buffer pad is provided on the side of the protective plate facing the top of the battery pack, and/or an avoidance portion is provided on the side of the protective plate facing the top of the battery pack.
19. The electric vehicle according to any one of claims 1-18, wherein the locking mechanism includes a locking bracket, and the The locking bracket is provided with a channel extending in the direction of gravity, the locking mechanism also includes a first locking part and a second locking part, the first locking part is rotatably installed on the locking bracket;

    The first locking portion is configured to prevent the locking member located in the channel from moving downward when the first locking portion rotates to the locking position, so as to lock the locking member. ;

    The second locking portion is configured to prevent the first locking portion from rotating when the first locking portion rotates to the locking position, so that the first locking portion remains in the locked position. Location.
20. The electric vehicle according to any one of claims 1 to 19, wherein the electric vehicle is an electric truck.