CN116252667A

CN116252667A - Electric vehicle and body bracket thereof

Info

Publication number: CN116252667A
Application number: CN202210837093.8A
Authority: CN
Inventors: 张建平; 王凯枫; 祝明; 黎明
Original assignee: Aulton New Energy Automotive Technology Co Ltd
Current assignee: Aulton New Energy Automotive Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-06-13

Abstract

The invention provides a vehicle body support of an electric vehicle and the electric vehicle, wherein the vehicle body support comprises a support body, the support body is fixed on the vehicle body of the electric vehicle, the support body is provided with a plurality of battery accommodating areas which are arranged side by side along the length direction of the vehicle body and are used for fixedly mounting a plurality of independent battery packs, each battery accommodating area is respectively provided with a locking mechanism, and each locking mechanism is used for independently mounting each battery pack in the corresponding battery accommodating area, so that different quantities of battery packs can be mounted on the electric vehicle according to requirements. The automobile body support passes through the fixed battery package of support body, can nimble adjustment support body for the position of automobile body girder to the electric vehicle of different models.

Description

Electric vehicle and body bracket thereof

Technical Field

The invention relates to the field of automobile power conversion, in particular to a body bracket of an electric vehicle and the electric vehicle.

Background

The conventional battery pack arrangement method of an electric vehicle is generally classified into a stationary type and a quick-change type, wherein a stationary type battery is generally fixed on the vehicle, and the vehicle is directly used as a charging object during charging. While quick-change battery packs are typically secured to the vehicle's bracket by means of a removable mounting. The battery pack for the power shortage can be removed and a full battery pack can be installed on the vehicle to individually perform a replacement or charging operation for the battery pack. And after the replaced battery pack is charged, the battery pack is reinstalled on the vehicle.

Wherein, to quick change formula battery package, holistic battery package is big and heavy, and the change degree of difficulty is big. Especially for large vehicles, such as heavy truck type, the vehicle body and the heavy load are very large, so that the requirement of the large vehicle on the capacity of the battery pack is high, and the large vehicle can be supported to travel hundreds of kilometers by electric energy with enough large capacity.

Disclosure of Invention

The invention aims to overcome the defect that a large battery is inconvenient to replace in the prior art, and provides a body support of an electric vehicle and the electric vehicle.

The invention solves the technical problems by the following technical scheme:

a body support for installing electric vehicle with the battery on the electric vehicle, body support includes the support body at least, the support body is fixed in on the electric vehicle's the automobile body, the support body has a plurality of edges the battery accommodation area that the length direction of automobile body set up side by side is used for a plurality of independent battery package of fixed mounting, and every the battery accommodation area is equipped with locking mechanism respectively, locking mechanism is used for supplying every the battery package is independently installed in corresponding in the battery accommodation area.

In this scheme, set up a plurality of battery accommodation areas on the automobile body support, every battery accommodation area all can independently install one or more battery package to can install the battery package of different quantity on electric vehicle as required, with the different power consumption demands of adaptation electric vehicle, consequently the arrangement of battery package is comparatively nimble. And secondly, compared with a whole large battery pack, the battery pack in each battery accommodating area has smaller volume and weight, is convenient to install, is favorable for standardization of the battery pack, and can adopt a design with small volume and small power for taking, placing and transporting the battery pack, thereby reducing the battery replacement cost. Furthermore, the plurality of battery packs are arranged along the length direction of the electric vehicle, so that the width direction space of the whole electric vehicle and part of the length direction space can be fully utilized, and the structural arrangement is compact.

Preferably, a plurality of locking mechanisms are respectively arranged at two sides of each battery accommodating area along the length direction and/or the width direction of the vehicle body at intervals.

In the scheme, the locking mechanism is arranged in the battery accommodating area and can be reliably connected with the battery; the locking mechanisms are positioned at two sides of the battery accommodating area, namely at two sides of the battery, so that the load born by the locking mechanisms at two sides is balanced, and the battery pack is ensured to be stably locked; in addition, through setting up a plurality of locking mechanism, share the load and realize multiple insurance for the locking is comparatively reliable.

Preferably, along the length direction and/or the width direction of the vehicle body, two sides of the battery accommodating area are respectively provided with a positioning mechanism for positioning the battery pack.

In this scheme, can play the guide effect when the battery package is installed to the support body through positioning mechanism, avoid the battery package to lead to the installation failure because of the counterpoint inaccuracy as far as possible to improve the installation effectiveness of battery package. Preferably, the positioning mechanism and the locking mechanism are arranged in a staggered mode, the space layout is reasonable, the space on the support body is fully utilized, and contact interference between the positioning mechanism and the locking mechanism is avoided.

Preferably, a limit mechanism is arranged between the battery pack bracket and the battery pack along the length direction and/or the width direction of the vehicle body, and is used for limiting the freedom degree of the battery pack in the battery accommodating area along the length direction and/or the width direction of the vehicle body.

In this scheme, can realize spacing between battery package and the support body through stop gear, improve the stability of battery package installation to prevent to take place unexpected displacement, take place the accident that the battery package breaks away from electric vehicle even because of jolting in electric vehicle driving process.

Preferably, the support body is a frame structure, the support body comprises a plurality of first support beams arranged at intervals along the length direction of the vehicle body and a plurality of second support beams arranged at intervals along the width direction of the vehicle body, the first support beams and the second support beams are connected and enclosed to form the frame structure, and the space between two adjacent first support beams along the length direction of the vehicle body forms the battery accommodating area.

In this scheme, first supporting beam and the cross setting of second supporting beam for the structure is firm, like this, frame construction can realize subtracting heavy under the prerequisite that satisfies support body structural strength rigidity requirement. The first support beam divides the support body into a plurality of battery receiving areas, and the battery pack can be locked and positioned by means of the first support beam and the second support beam.

Preferably, two adjacent first support beams are respectively provided with a corresponding locking mechanism, the locking mechanism is located on the side wall of the first support beam, and the locking mechanism is provided with a locking groove for allowing a locking shaft of the battery pack to enter so as to enable the battery pack to enter the battery accommodating area from the lower side of the bracket body along the height direction of the vehicle body and be connected with the locking mechanism.

In this scheme, in the installation and the dismantlement in-process of battery package, only need to make the battery package produce the displacement of vertical direction, need not additionally to carry out the locking to the battery package about, can realize the battery package, the operation of being convenient for also is favorable to simplifying the structure of battery replacement equipment.

Preferably, the vehicle body bracket further comprises a transfer frame, and the transfer frame is respectively connected with the bracket body and the girder of the vehicle body so as to fix the bracket body on the girder of the vehicle body.

In this scheme, fix the automobile body support on the automobile body girder through setting up the switching frame for simple to operate and connection are stable.

Preferably, the adapter rack at least comprises an adapter plate extending along the vertical direction;

the bracket body is arranged below the girder of the vehicle body and is connected with the side wall of the girder of the vehicle body through the adapter plate extending upwards from the bracket body; or, the support body set up in the top of the girder of automobile body, the support body is through follow the support body downwardly extending the keysets with the lateral wall of the girder of automobile body is connected.

In this scheme, the keysets can be connected in the lateral part of automobile body girder, compares in the installation of automobile body girder bottom, and the lateral part installation space of automobile body girder is great, the assembly operation of being convenient for. Under the condition that the bracket body is positioned below the girder of the vehicle body, the bracket body can be directly installed below the vehicle body, so that the transformation of the existing electric vehicle is facilitated; under the condition that the bracket body is positioned above the vehicle body girder, the vehicle body girder provides support for the bracket body, so that the bracket body is firmly fixed.

Preferably, the length of the adapter plate is not smaller than the length of the bracket body along the length direction of the vehicle body.

In this scheme, the length of keysets is longer than the length of support body or the two is the same, guarantees that the support body can reliably be connected to the automobile body girder on, improves the joint strength between support body and the automobile body girder.

Preferably, the adapter plate is connected with the bracket body through a reinforcing assembly, the reinforcing assembly comprises a first reinforcing beam and/or a second reinforcing beam, the first reinforcing beam is obliquely arranged relative to the bracket body, and the second reinforcing beam is arranged on the bracket body in parallel.

In this scheme, install the lateral part at the girder with the support body through the enhancement subassembly, installation space is big, and is convenient, can only be provided with first stiffening beam in the enhancement subassembly, also can only be provided with the second stiffening beam, can also set up these two kinds of stiffening beams simultaneously, further improves the intensity of support body. The first reinforcement beam and the second reinforcement beam may be in the form of beams or plates, and the present disclosure is not limited to a specific shape or form of "beam" on the premise of meeting actual requirements.

Preferably, the vehicle body bracket comprises two adapter brackets, and the two adapter plates are connected to the inner side parts of the two vehicle body girders, or the two adapter plates are connected to the outer side parts of the two vehicle body girders.

Under the condition that the adapter plates are positioned on the outer side part, the installation space is large, and the installation of the vehicle body bracket on the vehicle body girder is facilitated; under the condition that the adapter plates are located on the inner side portion, the adapter plates are surrounded by the car body girder, and the connecting structure is relatively closed and safer, so that the adapter plates are reliably connected with the car body girder.

Preferably, in each battery accommodating area, a connecting beam is arranged between two adjacent second supporting beams of the bracket body, and a vehicle end electric connector facing the battery pack is arranged on the connecting beam and used for realizing electric connection with the battery pack in the battery accommodating area.

In this scheme, the tie-beam provides the installation face for car end electric connector, and car end electric connector can realize electric connection with the battery end electric connector of battery package, and the tie-beam can be fixed mutually with the second supporting beam, improves the bulk strength and the rigidity of automobile body support.

Preferably, two adjacent second support beams are provided with positioning mechanisms, the positioning mechanisms are used for positioning the battery packs, and the positioning mechanisms are at least positioned on two sides of the connecting beam.

In the scheme, the adapter plate provides an installation space for the electric connector and can also play a role in reinforcing the second supporting beam; the positioning mechanisms are positioned on two sides (two end parts) of the connecting beam, the distance between the positioning mechanisms is larger, and the accurate connection of the battery end electric connector and the vehicle end electric connector is facilitated.

Preferably, the bracket body comprises at least one bracket split, each bracket split is provided with a plurality of subregions which are arranged side by side along the length direction of the vehicle body, the subregions are at least part of the battery accommodating region, and the bracket split is independently arranged on the vehicle body of the electric vehicle or a plurality of bracket split are arranged on the vehicle body of the electric vehicle after being integrally arranged.

In this scheme, the structure of support components of a whole that can function independently, volume are also less, therefore arrange more nimble, the electric vehicle of different models of easy adaptation.

Preferably, the bracket body comprises two independent bracket split bodies, the two bracket split bodies are respectively positioned at the outer side part of the girder of the vehicle body, the corresponding sub-areas on the two bracket split bodies respectively form the battery accommodating area together, and the corresponding sub-areas are respectively provided with the locking mechanism so as to be connected with the battery pack together.

In this scheme, the support components of a whole that can function independently sets up in the girder outside of automobile body, and installation space is great, easy operation during the installation, and two automobile body girders inboard need not to set up the support components of a whole that can function independently for the support body that two support components of a whole that can function independently formed is under having sufficient intensity, and weight is lighter, and space occupation is little.

Preferably, the bracket is split into a single bracket, the bracket is positioned at the inner side part of the girder of the vehicle body, and the locking mechanism is arranged in each sub-area so as to be connected with the battery pack.

In this scheme, the support components of a whole that can function independently sets up in the inboard of automobile body girder, and the support components of a whole that can function independently can be fixed with two automobile body girders simultaneously, and connection structure is more reliable, and the automobile body girder can its certain guard action to the support components of a whole that can function independently, and the support body only sets up the automobile body girder inboard for the space outside the automobile body girder can be reserved for battery package or other automobile body parts, in order to improve space utilization.

Preferably, the battery housing section includes a plurality of sub-housing sections juxtaposed in a width direction of the vehicle body, each for independently mounting the battery pack.

In the scheme, the battery accommodating area is divided into a plurality of sub-accommodating areas, and a plurality of battery packs can be arranged in a single battery accommodating area, so that the volume and the weight of the single battery pack are further reduced, the requirement on the battery replacing device is reduced, and the battery replacing cost is further reduced.

An electric vehicle comprises a plurality of battery packs and a vehicle body bracket as described above, wherein the battery packs are arranged side by side along the length direction of the vehicle body and are respectively fixed in corresponding battery pack accommodating areas on the vehicle body bracket.

In this scheme, through using above-mentioned automobile body support, can install the battery package of different quantity on electric vehicle as required, compare in a monoblock big battery package, the volume and the weight of the battery package in every battery holding area are less, are used for getting to put, transport battery package's battery replacement equipment can adopt the design of small volume, miniwatt to the battery replacement cost has been reduced. In addition, a plurality of battery packs are arranged along the length direction of the vehicle body, so that no matter how many battery packs are arranged, the distribution of the battery packs is basically bilateral symmetry, the weight load from the battery packs received by the vehicle body is also bilateral symmetry, and therefore, the load of the electric vehicle can be prevented from tilting left or right, and the stable running and the service life of the electric vehicle are facilitated. Moreover, such an arrangement can make full use of the width-direction space of the entire electric vehicle, as well as a part of the length-direction space, resulting in a compact structural arrangement.

Preferably, the electric vehicle is an electric truck.

In the scheme, the power and the total energy required by the operation of the electric truck are large, so that a battery with a large volume needs to be adapted, and a battery pack with a small volume can be adapted to the electric truck by applying the vehicle body bracket, so that the power conversion cost is reduced.

The invention has the positive progress effects that: according to the vehicle body bracket, the plurality of battery accommodating areas capable of independently installing the battery packs are arranged, so that different quantities of small battery packs can be installed on the electric vehicle according to the requirements, and correspondingly, the battery replacement equipment for taking, placing and transporting the battery packs can be designed with small volume and small power, so that the battery replacement cost is reduced. In addition, the battery pack is fixed through the support body to the automobile body support, so that the position of the support body relative to the automobile body girder can be adjusted according to the internal layout of the electric automobile and the structure of the battery pack, and the arrangement of the battery pack is flexible. According to the electric vehicle, the vehicle body bracket is used, so that the electricity changing cost can be reduced, and in addition, the plurality of battery packs are arranged along the length direction of the vehicle body, so that no matter how many battery packs are arranged, the distribution of the battery packs is basically bilateral symmetry, the weight load from the battery packs received by the vehicle body is also bilateral symmetry, the load of the electric vehicle can be prevented from tilting left or right, and the stable running and the service life of the electric vehicle are facilitated.

Drawings

Fig. 1 is a schematic structural view of an electric vehicle according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a vehicle body bracket mounted with a battery pack according to embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a vehicle body bracket according to embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of an electric vehicle according to embodiment 2 of the present invention.

Fig. 5 is a schematic structural view of a battery pack-mounted vehicle body bracket according to embodiment 2 of the present invention.

Fig. 6 is a schematic structural view of a vehicle body bracket according to embodiment 2 of the present invention.

Description of the reference numerals

Battery pack 10

Vehicle body support 20

Girder 30

Locking mechanism 40

Positioning mechanism 50

Bracket body 1

First support beam 11

Second support beam 12

Connecting beam 13

Third support beam 14

Battery accommodation area 2

Transfer frame 3

Adapter plate 31

Reinforcing component 32

First reinforcing beam 321

Second reinforcing beam 322

Vehicle end electric connector 4

Locating pin 5

Bracket split 6

Sub-region 7

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.

Example 1

Referring to fig. 1 to 3, the present embodiment provides an electric vehicle including a vehicle body and a vehicle body bracket 20 mounted on the vehicle body, and a plurality of battery packs 10 are each mounted on the electric vehicle through the vehicle body bracket 20.

In the present embodiment, the vehicle body has two girders 30, and the vehicle body bracket 20 is fixed to the two girders 30 to achieve the mounting on the vehicle body. The automobile body support 20 includes support body 1, support body 1 is fixed in on the automobile body of electric vehicle, support body 1 has three battery accommodation area 2 that set up side by side along the length direction of automobile body, every battery accommodation area 2 can all be used for a fixed mounting independent battery package 10, and every battery accommodation area 2 is equipped with locking mechanism 40 respectively, locking mechanism 40 is used for supplying each battery package 10 to independently install in corresponding battery accommodation area 2, thereby can install different quantity battery packages 10 on electric vehicle as required, with the different power consumption demands of adaptation electric vehicle, consequently the arrangement of battery package is comparatively nimble. Secondly, compare in a monoblock big battery package, the volume and the weight of battery package 10 in every battery accommodation area 2 are less, and easy to assemble is favorable to the standardization of battery package to and be used for getting to put, the design of low volume, low power can be adopted to the battery replacement equipment of transporting battery package 10, thereby has reduced the power conversion cost. Furthermore, the plurality of battery packs are arranged along the length direction of the electric vehicle, so that the width direction space of the whole electric vehicle and part of the length direction space can be fully utilized, and the structural arrangement is compact. In addition, since the plurality of battery packs 10 are arranged along the length direction of the vehicle body, the distribution of the battery packs 10 is basically bilateral symmetry no matter how many battery packs 10 are arranged, and the weight load from the battery packs 10 received by the vehicle body is also bilateral symmetry, so that the load of the electric vehicle can be prevented from tilting left or right, and the stable running and the service life of the electric vehicle are facilitated.

As an alternative embodiment, the battery housing area 2 includes a plurality of sub-housing areas arranged side by side in the width direction of the vehicle body, and each sub-housing area is provided with a locking mechanism, so that each sub-housing area can be provided with a battery pack independently, that is, each battery housing area 2 can be provided with a plurality of small battery packs, thus further reducing the volume and weight of a single battery pack, reducing the requirements on the power exchanging device, and thus reducing the power exchanging cost. For example, in the embodiment shown in fig. 1, each battery receiving region may be divided into three sub-receiving regions in the lateral direction of the vehicle body, and one small battery pack is provided in each sub-receiving region, so that the vehicle body bracket may simultaneously mount nine independent battery packs. The number of sub-compartments within each battery compartment 2 on the same body support may be different, for example, the battery compartment located furthest forward of the body may have three sub-compartments, and the battery compartment in the middle may have only two sub-compartments. On the premise of meeting the requirement of battery pack installation, the number and arrangement modes of the sub-accommodation areas can be adjusted arbitrarily by a person skilled in the art.

In this embodiment, the bracket body 1 is a frame structure, the bracket body 1 includes a plurality of first support beams 11 disposed at intervals along the vehicle body length direction and a plurality of second support beams 12 disposed at intervals along the vehicle body width direction, the first support beams 11 and the second support beams 12 are connected and enclosed to form the frame structure, and a space between two adjacent first support beams 11 along the vehicle body length direction forms the battery accommodation region 2. The first supporting beam 11 and the second supporting beam 12 are arranged in a crossing manner, so that the structure is stable, and the weight of the frame structure can be reduced on the premise of meeting the structural strength and rigidity requirements of the bracket body 1. The first support beam 11 partitions the bracket body 1 into a plurality of battery receiving areas 2, and the battery pack 10 can be locked and positioned by means of the first support beam 11 and the second support beam 12.

In some embodiments, the bracket body 1 may also have a plate-shaped structure, so as to have better strength, and at the same time, the plate-shaped bracket body 1 may play a role of shielding and protecting the battery pack 10 located below.

Referring to fig. 2 and 3, along the length direction of the vehicle body, a plurality of locking mechanisms 40 are provided at intervals on both sides of each battery receiving area 2, respectively, the locking mechanisms 40 allowing the locking shaft of the battery pack 10 to enter and be locked in the height direction of the vehicle body. Specifically, in the present embodiment, the locking mechanism 40 is mounted only on the side of the first support beam 11 facing the battery accommodating area 2. The locking mechanism 40 is in the battery accommodating area 2 and can be reliably connected with the battery pack 10; the locking mechanisms 40 are positioned at two sides of the battery accommodating area 2, namely at two sides of the battery pack 10, so that the loads born by the locking mechanisms 40 at two sides are balanced, and the battery pack 10 is ensured to be stably locked; in addition, by providing a plurality of locking mechanisms 40, load sharing is achieved, and multiple safeties are achieved, so that locking is more reliable. In some embodiments, the locking mechanism 40 may also be provided on both sides of the battery housing section 2 in the width direction of the vehicle body, and in particular, the locking mechanism 40 may be provided on the side of the second support beam 12 that faces the battery housing section 2.

Two adjacent first support beams 11 are respectively provided with a corresponding locking mechanism 40, the locking mechanism 40 is located on the side wall of the first support beam 11, the locking mechanism 40 is provided with a locking groove for enabling a locking shaft of the power supply pack 10 to enter so as to enable the power supply pack 10 to enter the battery accommodating area 2 from the lower side of the support body 1 along the height direction of the vehicle body and be connected with the locking mechanism 40. Specifically, the locking mechanism 40 includes a locking bracket provided with a locking groove extending in the gravity direction, and the locking mechanism 40 further includes a first locking portion and a second locking portion, the first locking portion being rotatably mounted to the locking bracket; the first locking part is configured to prevent the lock shaft positioned in the lock groove from moving downwards to lock the lock shaft when the first locking part rotates to the locking position; the second locking portion is configured to prevent rotation of the first locking portion when the first locking portion is rotated to the locking position, so that the first locking portion is maintained in the locking position. The locking shaft enters the locking mechanism 40 from bottom to top through the locking groove extending along the gravity direction, and the locking shaft is locked through the rotation of the first locking part to the locking position, so that the first locking part can realize the locking of the locking shaft, and the second locking part limits the first locking part, so that the locking is convenient and reliable, the efficiency of the installation and the disassembly of the battery pack is improved, and the quick replacement of the battery pack is realized. In the process of installing and dismantling the battery pack 10, only the battery pack 10 is required to generate displacement in the vertical direction, the battery pack 10 is not required to be additionally moved back and forth and left and right, the locking of the battery pack 10 can be realized, the operation is convenient, and the structure of the battery replacement equipment is also facilitated to be simplified.

The locking mechanism 40 in this embodiment may also be other locking mechanisms 40 that enable the battery pack 10 to be vertically (directly up and down) attached to the electric vehicle, such as a bolt type locking mechanism, a bead expansion type locking mechanism, a T-type locking mechanism, a hook type locking mechanism, or the like.

Further, in addition to the above-described locking mechanism 40, along the longitudinal direction and the width direction of the vehicle body, both sides of the battery housing area 2 may be provided with a positioning mechanism 50 for positioning with the battery pack 10, and a stopper mechanism for restricting the degree of freedom of the battery pack 10 in the horizontal direction within the battery housing area 2, respectively.

The positioning mechanism 50 can play a guiding role when the battery pack 10 is mounted on the bracket body 1, so that mounting failure of the battery pack 10 caused by inaccurate alignment is avoided as much as possible, and the mounting efficiency of the battery pack 10 is improved. The limit mechanism can realize the limit between the battery pack 10 and the bracket body 1, improve the stability of the installation of the battery pack 10, and prevent the battery pack 10 from generating unexpected displacement and even accidents that the battery pack 10 is separated from the electric vehicle due to jolt in the running process of the electric vehicle.

The positioning mechanism 50, the limiting mechanism and the locking mechanism 40 can be arranged in a staggered manner, so that the layout in the battery accommodating area 2 is reasonable, the space on the bracket body 1 is fully utilized, and the positioning mechanism 50, the limiting mechanism and the locking mechanism 40 are prevented from contact interference.

The body bracket 20 further includes an adapter bracket 3, and the adapter bracket 3 is connected to the bracket body 1 and the girder 30 of the body, respectively, to fix the bracket body 1 to the girder 30 of the body. The vehicle body support is fixed on the vehicle body girder through the switching frame, so that the installation is convenient and the connection is stable. In other embodiments, the body bracket 20 is also directly connected to the body frame 30 (e.g., by bolts), thereby further improving the connection firmness of the bracket body 1 and the body frame 30, and simplifying the structure.

Referring to fig. 2 and 3, in the present embodiment, the adapter bracket 3 includes at least an adapter plate 31 extending in a vertical direction, and for effective use of space and easy assembly, the adapter plate 31 may be connected to a side portion of the girder 30 of the vehicle body, the bracket body 1 is disposed under the girder 30 of the vehicle body, and the bracket body 1 is connected to a side wall of the girder 30 of the vehicle body through the adapter plate 31 extending upward from the bracket body 1. Under the condition that the bracket body 1 is positioned below the vehicle body girder 30, the bracket body 1 can be directly installed below the vehicle body, so that the transformation of the existing electric vehicle is facilitated.

In some embodiments, the bracket body 1 is disposed above the girder 30 of the vehicle body, and the bracket body 1 is connected to a sidewall of the girder 30 of the vehicle body through an adapter plate 31 extending downward from the bracket body 1. Under the condition that the bracket body 1 is positioned above the vehicle body girder 30, the vehicle body girder 30 provides support for the bracket body 1, so that the bracket body 1 is firmly fixed.

Along the length direction of the vehicle body, the length of the adapter plate 31 is not smaller than that of the bracket body 1, and the length of the adapter plate 31 is longer than that of the bracket body 1 or the length of the adapter plate is the same as that of the bracket body 1, so that the bracket body 1 can be reliably connected to the vehicle body girder 30, and the connection strength between the bracket body 1 and the vehicle body girder 30 is improved.

The adapter plate 31 is connected with the support body 1 through the reinforcing component 32, the reinforcing component 32 comprises a first reinforcing beam 321 and a second reinforcing beam 322, the first reinforcing beam 321 is obliquely arranged and connected between the adapter plate 31 and the support body 1 relative to the support body 1, and the second reinforcing beam 322 is arranged on the support body 1 in parallel and is connected with the adapter plate 31 and the support body 1 respectively. The bracket body 1 is arranged on the side part of the girder 30 through the reinforcing component 32, so that the installation space is large and convenient, and the two reinforcing beams can be simultaneously arranged, thereby further improving the strength of the bracket body 1. The first reinforcing beam 321 and the second reinforcing beam 322 may be in the form of beams, plates, pipes, profiles, etc., and the present disclosure is not limited to a specific shape or form of a "beam" on the premise of meeting actual requirements. For example, referring to fig. 1 to 3, the first reinforcing beam 321 is a triangular plate, and the second reinforcing beam 322 is a rectangular plate.

In the present embodiment, the first reinforcement beams 321 are provided in plurality at intervals along the longitudinal direction of the vehicle body. The position of the first reinforcement beam 321 may correspond to the position of the first support beam 11, for example, along the length direction of the vehicle body, and two sides of the first support beam 11 are respectively provided with a first reinforcement beam 321.

It will be appreciated that in some embodiments, only the first reinforcing beam 321 or only the second reinforcing beam 322 may be disposed in the reinforcing assembly 32, which may serve to enhance the reliability of the connection between the body bracket 20 and the body bracket 20.

In this embodiment, the adapter brackets 3 are all connected to the outer sides of the two girders 30, and in the case that the adapter plates 31 are all located at the outer sides, the installation space is large, so that the installation of the vehicle body bracket 20 on the vehicle body girders 30 is facilitated.

In other embodiments, the adapter frame 3 may be connected to the inner sides of the two girders 30, for example, only one adapter frame 3 may be provided, and the adapter frame 3 is located between the two girders 30 and connected to both girders 30. As an alternative embodiment, the body frame 20 comprises two adapter brackets 3, both adapter plates 31 being connected to the inner side of the two body girders 30. The adapter bracket 3 is surrounded by the body girder 30, and the connecting structure is relatively closed and safer, so that the connection between the adapter bracket 3 and the body girder 30 is more reliable.

In each battery receiving area 2, a connecting beam 13 is arranged between two adjacent second supporting beams 12 of the bracket body 1, and a vehicle-end electric connector 4 facing the battery pack 10 is arranged on the connecting beam 13 for realizing electric connection with the battery pack 10 positioned in the battery receiving area 2. The connecting beam 13 provides a mounting surface for the vehicle-end electrical connector 4, the vehicle-end electrical connector 4 can be electrically connected with the battery-end electrical connector of the battery pack 10, and the connecting beam 13 can be fixed with the second support beam 12, so that the overall strength and rigidity of the vehicle body bracket 20 are improved.

Two adjacent second support beams 12 are provided with positioning mechanisms 50, and the positioning mechanisms 50 are at least positioned on two sides of the connecting beam 13. The adapter plate 31 provides an installation space for the electrical connector, and also plays a role in reinforcing the second support beam 12; the positioning mechanisms 50 are located at two sides (two end parts) of the connecting beam 13, and the positioning mechanisms 50 are relatively large in distance from each other, so that the battery end electric connector and the vehicle end electric connector 4 can be accurately connected. Specifically, the positioning mechanism 50 includes a positioning pin 5, and the positioning pin 5 can be fittingly inserted into a positioning hole of the battery pack 10, thereby achieving positioning of the battery pack 10 and the vehicle body bracket 20.

By applying the above-mentioned vehicle body support 20, the electric vehicle of this embodiment can install different numbers of battery packs 10 on the electric vehicle as required, and compared with a whole big battery pack 10, the volume and the weight of the battery pack 10 in each battery accommodation area 2 are less, and the battery changing equipment for taking, placing and transporting the battery pack 10 can adopt the design of small volume and small power, thereby reducing the battery changing cost.

The electric vehicle of the present embodiment is preferably an electric truck, and the electric truck requires a large amount of power and total energy for operation, so that a large-sized battery needs to be adapted, and by using the above-described vehicle body bracket 20, a small-sized battery can be adapted to the electric truck, thereby reducing the cost of power exchange.

Example 2

Fig. 4 to 6 are views of embodiment 2 of the present invention, which is basically the same as embodiment 1, except that the bracket body 1 in this embodiment includes a plurality of bracket segments 6, each of the bracket segments 6 has a plurality of sub-regions 7 arranged side by side in the longitudinal direction of the vehicle body, the sub-regions 7 are part of the battery receiving region 2, and the bracket segments 6 are independently mounted on the vehicle body of the electric vehicle or the plurality of bracket segments 6 are integrally mounted and then mounted on the vehicle body of the electric vehicle. The support bracket split 6 has independent structure and smaller volume, so the arrangement is more flexible, and the support bracket split 6 is easy to adapt to electric vehicles of different types.

Similar to embodiment 1, the bracket split 6 is also a frame structure including a plurality of first support beams 11 arranged at intervals along the length direction of the vehicle body and two second support beams 12 arranged at intervals along the width direction of the vehicle body, the plurality of first support beams 11 being each connected between the two second support beams 12 so as to enclose to form a frame structure, a space between two adjacent first support beams 11 along the length direction of the vehicle body forming a sub-region 7, and a lock mechanism 40 being mounted on the first support beam 11 of each sub-region 7. Referring to fig. 5 and 6, a connection beam 13 for mounting the vehicle-end electrical connector 4 is further provided between the two second support beams 12 of one of the bracket components 6, and positioning pins 5 positioned at both sides of the vehicle-end electrical connector 4 are further provided on the connection beam 13 so as to guide the battery pack to be mounted on the bracket components. In another embodiment, the bracket split 6 may further include a third support beam 14, and two third support beams 14 spaced apart along the length of the vehicle body are disposed in each sub-area, so as to further strengthen the frame structure. Accordingly, the positioning pins 5 are provided on the third support beam 14 such that each battery pack 10 has two positioning pins 5 positioned. For a bracket split with a connecting beam, the third support beams are located on both sides of the connecting beam.

As an alternative embodiment, the connection beam 13 for mounting the vehicle-end electrical connector 4 may also be between the two girders 30, i.e. the connection beam 13 is relatively independent from the bracket split 6, so that the vehicle-end electrical connector 4 corresponds to the middle of the battery.

In this embodiment, the bracket body 1 includes two independent bracket split bodies 6, the two bracket split bodies 6 are respectively located at the outer side parts of the girder 30 of the vehicle body, and the corresponding sub-areas on the two bracket split bodies 6 respectively form the battery accommodating area 2 together, and the corresponding sub-areas are provided with locking mechanisms 40 to connect the battery packs 10 together. The support components of a whole that can function independently 6 sets up in the girder 30 outside of automobile body, and installation space is great, easy operation during the installation, and two automobile body girders inboard need not to set up the support components of a whole that can function independently for the support body that two support components of a whole that can function independently formed is under having sufficient intensity, and weight is lighter, and space occupation is little.

The adapter bracket 3 is arranged between the bracket split 6 and the girder 30, the adapter bracket 3 of the embodiment is similar to the embodiment 1, the adapter bracket 3 is provided with an adapter plate 31, the adapter plate 31 is connected with the bracket body 1 through a reinforcing component 32, the reinforcing component 32 comprises a first reinforcing beam 321 which extends obliquely, and specifically, the first reinforcing beam 321 is a triangular plate.

Example 3

The present embodiment is similar to embodiment 2 in that the body frame 20 includes the frame split 6, except that the frame split 6 is single, located at the inner side of the girder 30 of the body, and the locking mechanism 40 is provided in each of the sub-regions to connect the battery pack 10. The support components of a whole that can function independently 6 sets up the inboard at body girder 30, and support components of a whole that can function independently 6 can be fixed with two body girders 30 simultaneously, and connection structure is more reliable, and body girder 30 can its certain guard action to support components of a whole that can function independently 6, and the support body only sets up the body girder inboard for the space outside the body girder can be reserved for battery package or other automobile body parts, in order to improve space utilization.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

1. The utility model provides a vehicle body support of electric vehicle for install the battery package on the electric vehicle, its characterized in that, vehicle body support includes the support body at least, the support body is fixed in on the electric vehicle's the automobile body, the support body has a plurality of edges the battery accommodation area that the length direction of automobile body set up side by side is used for a plurality of independent battery packages of fixed mounting, and every battery accommodation area is equipped with locking mechanism respectively, locking mechanism is used for every the battery package is independently installed in corresponding in the battery accommodation area.

2. The electric vehicle body bracket according to claim 1, wherein a plurality of the lock mechanisms are provided at intervals on both sides of each of the battery accommodation areas along a longitudinal direction and/or a width direction of the vehicle body.

3. The body mount for an electric vehicle according to claim 1, wherein both sides of the battery receiving region are provided with positioning mechanisms for positioning with the battery pack, respectively, along a length direction and/or a width direction of the vehicle body.

4. The electric vehicle body bracket according to claim 1, wherein a stopper mechanism is provided between the battery pack bracket and the battery pack along a length direction and/or a width direction of the vehicle body for restricting a degree of freedom of the battery pack in the battery accommodating region along the length direction and/or the width direction of the vehicle body.

5. The vehicle body bracket according to any one of claims 1 to 4, wherein the bracket body is a frame structure, the bracket body includes a plurality of first support beams spaced apart in a longitudinal direction of the vehicle body and a plurality of second support beams spaced apart in a width direction of the vehicle body, the first support beams and the second support beams are connected to enclose the frame structure, and a space between two adjacent first support beams in the longitudinal direction of the vehicle body forms the battery receiving area.

6. The vehicle body bracket of claim 5, wherein two adjacent first support beams are each provided with a corresponding locking mechanism located on a side wall of the first support beam, the locking mechanism having a locking groove for a locking shaft of the battery pack to enter to achieve the battery pack to enter the battery accommodating area from below the bracket body in a height direction of the vehicle body and to be connected with the locking mechanism.

7.The body support of claim 5, further comprising a swivelAnd the switching frame is respectively connected with the bracket body and the girder of the vehicle body so as to fix the bracket body on the girder of the vehicle body.

8. The vehicle body bracket of claim 7, wherein the adapter bracket includes at least an adapter plate extending in a vertical direction;

9. The vehicle body bracket according to claim 8, wherein a length of the adapter plate is not less than a length of the bracket body in a length direction of the vehicle body.

10. The vehicle body bracket of claim 8, wherein the adapter plate is connected with the bracket body through a reinforcing assembly, the reinforcing assembly comprises a first reinforcing beam and/or a second reinforcing beam, the first reinforcing beam is obliquely arranged relative to the bracket body, and the second reinforcing beam is arranged on the bracket body in parallel.

11. The vehicle body bracket of claim 8, wherein the vehicle body bracket includes two adapter brackets, both of which are connected to inner sides of the girders of both of the vehicle bodies, or both of which are connected to outer sides of the girders of both of the vehicle bodies.

12. The vehicle body bracket of claim 5, wherein in each of said battery receiving areas, a connection beam is provided between two adjacent second support beams of said bracket body, said connection beam having provided thereon a vehicle end electrical connector toward said battery pack for making electrical connection with said battery pack located in said battery receiving area.

13. The vehicle body bracket of claim 12, wherein two adjacent second support beams are provided with positioning mechanisms for positioning with the battery packs, the positioning mechanisms being located at least on both sides of the connecting beams.

14. The vehicle body bracket of claim 5, wherein said bracket body includes at least one bracket segment, each of said bracket segments having a plurality of segments disposed side-by-side along a length of said vehicle bodyA sub-region arranged as At least a portion of the battery receiving region.

15. The vehicle body bracket of claim 14, wherein the bracket body comprises two independent bracket split bodies, the two bracket split bodies are respectively positioned at the outer side parts of the girder of the vehicle body, the corresponding sub-areas respectively positioned on the two bracket split bodies jointly form the battery accommodating area, and the corresponding sub-areas are respectively provided with the locking mechanism so as to jointly connect the battery pack.

16. The vehicle body bracket of claim 14, wherein said bracket is separate and located on an interior side of a girder of said vehicle body, said locking mechanism being provided in each of said sub-regions for connecting said battery packs.

17. The vehicle body bracket according to claim 1, wherein the battery housing section includes a plurality of sub-housing sections juxtaposed in a width direction of the vehicle body, each sub-housing section being for independently mounting the battery pack.

18. An electric vehicle comprising a plurality of battery packs and the vehicle body bracket according to any one of claims 1 to 17, wherein the plurality of battery packs are arranged side by side in the longitudinal direction of the vehicle body and are respectively fixed in the corresponding battery pack accommodation regions on the vehicle body bracket.

19. The electric vehicle of claim 18, characterized in that the electric vehicle is an electric truck.