CN115122890A - Side-mounted power battery support for electric commercial vehicle - Google Patents

Abstract

The invention provides a side-mounted power battery bracket of an electric commercial vehicle, which is arranged on the side surface of a frame girder of the electric commercial vehicle and comprises: the battery support comprises an underframe, a middle bracket and outer beams, wherein the middle bracket is arranged on the underframe, at least one middle bracket is arranged, so that at least two cavities for accommodating batteries are formed in the battery support, and the outer beams are arranged on the underframe and the middle bracket; the underframe is arranged on the side surface of the frame crossbeam. The invention effectively solves the problems of low utilization rate of the loading space, small turning radius of the tractor, inconvenient maintenance and incapability of batch production in a production line caused by unscientific arrangement structure of the power battery of the electric commercial vehicle in the prior art.

Description

A side-mounted power battery bracket for an electric commercial vehicle

technical field

The invention belongs to the technical field of electric commercial vehicle manufacturing, and in particular relates to a side-mounted power battery bracket for an electric commercial vehicle.

Background technique

With the increasing requirements for environmental protection, electric commercial vehicles are increasingly favored by people in the automotive market. The size of the power distribution of electric commercial vehicles is a key factor in determining the vehicle's driving range and application scenarios. However, in order to increase the power distribution of the whole vehicle on the market, the power battery box is arranged between the rear of the cab and the frame, which will inevitably lead to low utilization of the upper loading space, small turning radius of the tractor and inconvenient maintenance. At the same time, because the traditional battery bracket cannot be sub-assembled offline, it can only be installed together with the frame at the same time on the frame production line, so that the battery bracket cannot be mass-produced off the production line, reducing the production efficiency.

Invention content:

The invention provides a side-mounted power battery bracket for an electric commercial vehicle, which effectively solves the problems of low utilization rate of the upper loading space and the turning radius of the tractor caused by the unscientific arrangement of the power battery of the electric commercial vehicle in the prior art. Small size, inconvenient maintenance, and inability to mass-produce off the production line.

The present invention is achieved through the following technical solutions:

A side-mounted power battery bracket for an electric commercial vehicle, the battery bracket is arranged on the side of the frame beam of the electric commercial vehicle, and includes: a bottom frame, a middle bracket and an outer beam, and the middle bracket is mounted on the bottom frame , the middle bracket has at least one setting, so that the battery bracket forms at least two cavities for accommodating batteries, the outer beam is installed on the bottom frame and the middle bracket; the bottom frame is installed on the frame frame side.

Further, the base frame includes: a side connecting seat and a bottom plate, the side connecting seat and the bottom plate are installed perpendicular to each other, and the side connecting seat is installed on the side of the frame girder.

Further, the side connecting seat includes: an installation base plate and a U-shaped installation plate, the U-shaped installation plate is arranged on the outer side of the installation base plate, and the base plate includes a U-shaped cross beam, a U-shaped longitudinal beam and a U-shaped plate, There are at least two sets of the U-shaped beam and the U-shaped longitudinal beam respectively. The U-shaped beam and the U-shaped longitudinal beam are connected and installed to form a quadrilateral frame structure. The U-shaped plate is installed on the U-shaped beam and the U-shaped longitudinal beam. The inner side of the stringer is used to support the battery box.

Further, a reinforcing rib is also provided at the cross connection of the U-shaped transverse beam and the U-shaped longitudinal beam.

Further, the middle bracket includes: a bracket U-shaped beam and a bracket U-shaped longitudinal beam, the bracket U-shaped beam has at least two settings, and the bracket U-shaped longitudinal beam has at least three settings, so The bracket U-shaped beam and the bracket U-shaped longitudinal beam are connected and installed to form a quadrilateral frame structure; wherein another bracket U-shaped longitudinal beam is arranged in the quadrilateral frame for supporting the battery box, and the bracket U-shaped longitudinal beam is arranged in the quadrilateral frame. A reinforcing rib is also arranged at the cross connection between the U-shaped beam of the frame and the U-shaped longitudinal beam of the bracket.

Further, the outer beam includes an upper rectangular tube, an L-shaped connector and a lower rectangular tube, the upper rectangular tube and the lower rectangular tube are respectively connected at both ends of the L-shaped connector to form an L-shaped outer beam, the upper Ear plates are also installed on the rectangular tube and the lower rectangular tube for connecting the bottom frame and the middle bracket. .

Compared with the prior art, the present invention has the following beneficial technical effects:

The invention makes full use of the space on the side of the frame by improving the traditional battery box arranged at the back of the cab and the middle of the frame to the outer side of the frame, which can not only meet the needs of different power distribution of different models, but also It can further enhance the competitive advantage of the product; by changing the traditional welded battery box bracket into a prefabricated structure, the battery box is convenient to install and has sufficient maintenance space; The problem of difficult maintenance and replacement makes it easier to mass-produce the assembly line; and this assembly structure has good scalability and can be applied to battery boxes of different specifications and lengths, and even more than two layers of battery boxes. It is easy to realize the serial design of products. Strong versatility.

Description of drawings:

Fig. 1 is the general assembly structure schematic diagram of the present invention;

Fig. 2 is the structural schematic diagram of the chassis of the present invention;

Fig. 3 is the structural schematic diagram of the outer beam of the present invention;

4 is a schematic structural diagram of the middle bracket of the present invention;

FIG. 5 is a schematic structural diagram of the battery bracket installed on the side of the vehicle frame according to the present invention.

Description of reference numbers:

1-underframe, 101-installation bottom plate, 102-U-shaped installation plate, 103-U-shaped longitudinal beam, 104-U-shaped beam, 105-reinforced ribs, 106-U-shaped plate, 2-outer beam, 201-upper rectangle Tube, 202-L-shaped connector, 203-Ear plate, 204-Lower rectangular tube, 3-Central bracket, 301-Bracket U-shaped longitudinal beam, 302-Bracket U-shaped beam, 303-Bracket reinforcing rib.

Detailed ways

In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

1 is a schematic diagram of the general assembly structure of the present invention; as shown in FIG. 1 , the battery bracket includes: the battery bracket is arranged on the side of the frame beam of the electric commercial vehicle, including: a bottom frame 1, a middle bracket 3 and an outer beam 2. The middle bracket is installed on the bottom frame, and the bottom frame has at least one setting, so that the battery bracket forms two cavities for accommodating batteries, and the outer beam is installed on the bottom frame and the middle bracket. on the frame; the bottom frame is installed on the side of the frame beam.

FIG. 2 is a schematic structural diagram of the chassis of the present invention; as shown in FIG. 2 , the chassis 1 includes: a side connecting seat and a bottom plate, the side connecting seat and the bottom plate are intersected and vertically welded and installed, and the side connecting seat is installed on the Side of frame frame. The side connecting seat includes: a mounting bottom plate 101 and a U-shaped mounting plate 102, the U-shaped mounting plate is arranged on the outer side of the mounting bottom plate, and the bottom plate includes a U-shaped cross beam 104, a U-shaped longitudinal beam 103 and a U-shaped plate 106, the U-shaped beam and the U-shaped longitudinal beam have two settings respectively, the U-shaped transverse beam and the U-shaped longitudinal beam are intersected, connected, welded and installed to form a rectangular frame structure, and the U-shaped plate is welded and installed on the U-shaped beam. The inner side of the U-shaped beam and the U-shaped longitudinal beam is used to support the battery box; the cross-connection of the U-shaped beam and the U-shaped longitudinal beam is also welded with four reinforcing ribs 105 respectively.

4 is a schematic diagram of the structure of the middle bracket of the present invention; as shown in FIG. 4 , the middle bracket 3 includes: a bracket U-shaped beam 302 and a bracket U-shaped longitudinal beam 301, and the bracket U-shaped beam has two settings, The bracket U-shaped longitudinal beam has three settings, the bracket U-shaped transverse beam and the bracket U-shaped longitudinal beam are intersected, connected and welded to form a rectangular frame structure, and the bracket U-shaped transverse beam and the bracket U-shaped longitudinal beam are The bracket reinforcement rib 303 is also welded at the cross connection.

3 is a schematic diagram of the structure of the outer beam of the present invention; as shown in FIG. 3 , the outer beam 2 includes an upper rectangular tube 201, an L-shaped connector 202 and a lower rectangular tube 204, and the upper rectangular tube and the lower rectangular tube are respectively welded on Both ends of the L-shaped connecting piece form an L-shaped outer beam, and the upper rectangular tube and the lower rectangular tube are also welded with ear plates 203 for connecting the bottom frame and the middle bracket. In this embodiment, only one middle bracket is provided, so the entire battery rack is divided into two layers, and one battery box can be installed on each of the upper and lower layers. In practical applications, the number of middle brackets can be flexibly adjusted according to actual needs. For example, when the driving range needs to be increased, three battery boxes can be set in the battery bracket. In this case, two middle brackets need to be set, and of course, the corresponding outer beam size must also be increased accordingly.

FIG. 5 is a schematic structural diagram of the battery bracket installed on the side of the vehicle frame according to the present invention. The installation method of the battery box is as follows:

Step 1. Assemble the bottom frame 1 and the lower battery box;

Step 2. Bolt connection between the middle bracket 3 and the chassis 1;

Step 3. Install the upper battery box on the middle bracket 3;

Step 4. Bolt the outer beam 2 to the bottom frame 1 and the middle bracket 3 through the lug plate respectively;

Step 5. Lift the double-layer battery box installed under the line with an air vehicle, transfer it to the side of the frame girder, and install it on the ventral surface of the girder with bolts.

The invention makes full use of the space on the side of the frame by improving the traditional battery box arranged at the back of the cab and the middle of the frame to the outer side of the frame, which can not only meet the needs of different power distribution of different models, but also It can further enhance the competitive advantage of the product; by changing the traditional welded battery box bracket into a prefabricated structure, the battery box is convenient to install and has sufficient maintenance space; The problem of difficult maintenance and replacement makes it easier to mass-produce the assembly line; and this assembly structure has good scalability and can be applied to battery boxes of different specifications and lengths, and even more than two layers of battery boxes. It is easy to realize the serial design of products. Strong versatility.

The above-mentioned embodiments are preferred examples for realizing the present invention, and the present invention is not limited to the above-mentioned embodiments. Any non-essential additions and substitutions made by those skilled in the art according to the technical features of the technical solutions of the present invention fall within the protection scope of the present invention.

Claims (6)

1. A side-mounted power battery support for an electric commercial vehicle, characterized in that the battery support is arranged on the side of the frame girder of the electric commercial vehicle, comprising: a bottom frame, a middle bracket and an outer beam, and the middle bracket is installed On the bottom frame, the middle bracket has at least one setting, so that the battery bracket forms at least two cavities for accommodating batteries, and the outer beam is mounted on the bottom frame and the middle bracket; the bottom The frame is mounted on the side of the frame frame. 2 . The side-mounted power battery support for an electric commercial vehicle according to claim 1 , wherein the base frame comprises: a side connecting seat and a bottom plate, the side connecting seat and the bottom plate are intersected and vertically installed, and the side connecting seat and the bottom plate are installed vertically. 3 . The connecting seat is installed on the side of the frame girder. 3 . The side-mounted power battery bracket for an electric commercial vehicle according to claim 2 , wherein the side connecting seat comprises: a mounting bottom plate and a U-shaped mounting plate, and the U-shaped mounting plate is arranged on the mounting plate. 4 . The outer side of the bottom plate, the bottom plate includes a U-shaped beam, a U-shaped longitudinal beam and a U-shaped plate, the U-shaped beam and the U-shaped longitudinal beam are respectively provided at least two, and the U-shaped beam and the U-shaped longitudinal beam are intersected and connected The installation constitutes a quadrilateral frame structure, and the U-shaped plate is installed on the inner side of the U-shaped beam and the U-shaped longitudinal beam to support the battery box. 4 . The side-mounted power battery support for an electric commercial vehicle according to claim 3 , wherein a reinforcing rib is further provided at the cross connection between the U-shaped beam and the U-shaped longitudinal beam. 5 . 5 . The side-mounted power battery bracket for an electric commercial vehicle according to claim 1 , wherein the middle bracket comprises: a bracket U-shaped beam and a bracket U-shaped longitudinal beam, and the bracket U-shaped There are at least two sets of beams, and there are at least three sets of U-shaped longitudinal beams of the bracket. The longitudinal beams are arranged in the quadrilateral frame for supporting the battery box, and reinforcing ribs are also provided at the cross connection between the U-shaped transverse beam of the bracket and the U-shaped longitudinal beam of the bracket. 6 . The side-mounted power battery support for an electric commercial vehicle according to claim 1 , wherein the outer beam comprises an upper rectangular tube, an L-shaped connector and a lower rectangular tube, and the upper rectangular tube and the lower rectangular tube The tubes are respectively connected at both ends of the L-shaped connecting piece to form an L-shaped outer beam, and ear plates are also installed on the upper rectangular tube and the lower rectangular tube for connecting the bottom frame and the middle bracket.

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