CN220315115U

CN220315115U - Electric truck

Info

Publication number: CN220315115U
Application number: CN202322019073.2U
Authority: CN
Inventors: 凌师帮; 宋宁; 陈健; 阮盼
Original assignee: Guangxi Liugong Machinery Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-09
Anticipated expiration: 2033-07-31

Abstract

The utility model relates to an electric truck, in order to solve the problem of insufficient loading space of back type arrangement of batteries on the existing through type longitudinal beam frame, the utility model constructs an electric truck, the frame comprises a front section frame which is fixedly connected in turn, a cab is arranged on the front section frame, a plurality of axles are respectively arranged on the front section frame and the back section frame, the middle section frame comprises a rectangular frame formed by welding the head and the tail of two middle section longitudinal beams and two middle section cross beams, and the width of the rectangular frame in the left-right direction is larger than the width of the rectangular frame in the left-right direction of a front section Duan Chejia; a second battery component which does not protrude out of the top surface of the rectangular frame is arranged in the rectangular frame, and a first battery component is arranged on the upper side of the front section frame behind the cab. According to the utility model, the power battery installation space is increased under the condition that the wheelbase and the uploading space are not influenced and the ground clearance is met, so that more power batteries can be installed, and the transportation requirement of the electric truck in a larger mileage scene is met.

Description

Electric truck

Technical Field

The present utility model relates to a truck, and more particularly, to an electric truck.

Background

The frame of an electric truck is often modified based on a fuel vehicle and includes a through-rail. The power battery arrangement on the electric truck mostly adopts two modes or a combination of two modes of arranging the battery on the back of a cab and arranging the battery on the side of a frame.

The mode of arranging the back type battery is to intensively arrange the battery above the frame behind the cab, the mode can influence the effective loading space between the wheelbase and the front and rear axles of the whole automobile, the problems of overlong wheelbase and insufficient loading space are caused, the back type battery frame is too high, the view field of the rear window of the cab is poor, and the structural safety of the battery frame is low.

The side-hung battery arranging mode is to arrange battery hangers extending from two sides of a box on a frame, and to intensively arrange batteries on the battery hangers on two sides of the frame. In addition, the battery hanger is in a cantilever structure, so that the stable installation and protection of the battery are achieved, the strength requirement of the battery hanger is high, the weight of the battery hanger is large, and the weight of the vehicle is obviously increased.

Disclosure of Invention

The utility model aims to solve the technical problem that the existing through type longitudinal beam frame is insufficient in the mounting space for the back arrangement of batteries, and provides an electric truck which is capable of increasing the arrangement space of the batteries and improving the cruising ability of the electric truck.

The technical scheme for achieving the purpose of the utility model is as follows: the electric truck is constructed, wherein a frame of the electric truck comprises a front section frame which is sequentially and fixedly connected, a cab is arranged on the front section frame, a plurality of axles are respectively arranged on the front section frame and a rear section frame, the middle section frame comprises a rectangular frame formed by welding two middle section longitudinal beams and two middle section cross beams from beginning to end, and the width of the rectangular frame in the left-right direction is larger than that of the front section frame and the rear section frame in the left-right direction, namely Duan Chejia; a second battery component which does not protrude out of the top surface of the rectangular frame is arranged in the rectangular frame, and a first battery component is arranged on the upper side of the front section frame behind the cab.

According to the utility model, the sectional frame and the installation space for accommodating the power battery are arranged on the middle frame, so that the installation space of the power battery is increased under the conditions of not affecting the wheelbase and the uploading space and meeting the ground clearance, more power batteries can be installed, and the requirement of transportation of the electric truck in a larger mileage scene is met.

In the electric truck of the present utility model, the first battery assembly includes a back battery bracket fixed to the front-section frame and a plurality of first power batteries mounted in layers on the back battery bracket.

In the electric truck of the present utility model, the number of the arrangement layers of the first power batteries is not more than six, and the longitudinal direction of each of the first power batteries is arranged in the left-right direction.

In the electric truck, the front section frame comprises two front section frame longitudinal beams with the cross section in a groove-shaped cross section structure, the back battery support is placed on the upper leg of the front section frame longitudinal beam, and the left and right lower mounting brackets of the back battery support are symmetrically arranged on the waist side surfaces of the left and right front section frame longitudinal beams.

In the electric truck, the cross sections of the middle section longitudinal beam and the middle section transverse beam are of groove-shaped cross section structures, and the second battery assembly comprises a battery bracket set hung on the lower leg part of the corresponding beam in the middle section frame and a plurality of second power batteries mounted on the battery bracket set.

In the electric truck of the utility model, the number of the second power batteries is two, and each layer comprises four second power batteries which are arranged in a 'field' shape.

In the electric truck, the middle section frame further comprises a middle beam which is arranged in the rectangular frame and has an I-shaped cross section structure, wherein the middle beam is longitudinally arranged in the middle in the front-back direction, two ends of the middle beam are respectively welded with the middle section cross beam, or the middle beam is transversely arranged in the middle in the left-right direction, and two ends of the middle beam are respectively welded with the middle section longitudinal beam.

In the electric truck, the battery bracket group comprises a plurality of pairs of battery brackets which are mutually parallel and spaced and are vertical to the middle beam, each pair of battery brackets comprises a stand column, an upper supporting plate and a lower supporting plate which are in a strip shape, the end part of the upper supporting plate is fixedly connected with the lower leg part of the corresponding beam on the rectangular frame, and the middle part of the upper supporting plate is fixedly connected with the lower flange of the middle beam; the lower supporting plate is arranged below the upper supporting plate, and two ends of the lower supporting plate are bent upwards and fixedly connected to the lower leg parts of the corresponding beams on the rectangular frame; the lower end of the upright post is fixedly connected with the lower supporting plate, and the upper end of the upright post is fixedly connected with the lower flange of the middle beam.

In the electric truck according to the utility model, the battery carrier assembly further comprises at least one torsion plate in the form of a strip, which is arranged perpendicularly to the lower support plates and is fixedly connected to the respective lower support plate.

In the electric truck of the present utility model, the second power battery located at the upper layer is fixedly mounted on the upper blade, and the second power battery located at the lower layer is fixedly mounted on the lower blade.

Compared with the prior art, the utility model increases the power battery installation space under the conditions of not influencing the wheelbase and the uploading space and meeting the ground clearance, so that more power batteries can be installed, and the requirement of transportation of the electric truck in a larger mileage scene is met.

Drawings

Fig. 1 is a schematic view of the chassis structure of the electric truck according to the present utility model.

Fig. 2 is a side view of the chassis of the electric truck of the present utility model.

Fig. 3 is a schematic view showing the arrangement of a frame and a power battery in the electric truck according to the present utility model.

Fig. 4 is an exploded view of a mid-section frame and a second battery assembly of the electric truck of the present utility model.

Fig. 5 is a schematic view showing the lower parts of the middle frame and the second battery assembly of the electric truck according to the present utility model.

Fig. 6 is a schematic view of the structure of a battery carrier assembly in an electric truck according to the present utility model.

Part names and serial numbers in the figure:

cab 10, front-section frame 11, middle-section frame 12, and rear-section frame 13.

First battery pack 20, first power battery 21, and back battery holder 22

A middle frame left longitudinal beam 121, a middle frame right longitudinal beam 122, a middle frame front cross beam 123, a middle frame rear cross beam 124, a frame connecting structure 125 and a middle beam 126.

The second battery assembly 30, the second power battery 31, the battery bracket 32, the lower plate 321, the upright 322, the upper plate 323, the first upper plate 3231, the second upper plate 3232, and the torsion plate 33.

Detailed Description

The following describes specific embodiments with reference to the drawings.

Fig. 1 to 5 show an electric truck structure in an embodiment of the present utility model.

As shown in fig. 1 and 2, the frame of the electric truck includes a front section frame 11, a middle section frame 12 and a rear section frame 13 which are fixedly connected in sequence. The cab 10 is disposed on a front-section frame 11, and a plurality of axles are respectively mounted on the front-section frame 11 and a rear-section frame 13, wherein a first axle and a second axle are mounted on the front-section frame 11, and a third axle and a fourth axle are mounted on the rear-section frame 13.

As shown in fig. 3, the center frame 12 includes a rectangular frame formed by welding two center side members and two center cross members end to end, and a center rail 126 having an i-shaped cross-sectional structure is disposed in the rectangular frame. The width of the rectangular frame in the left-right direction is larger than that of the front-rear Duan Chejia. The cross sections of the left side beam 121, the right side beam 122, the front beam 123 and the rear beam 124 of the middle frame are all of a groove-shaped cross section structure, the middle beam 126 is longitudinally arranged in the middle in the front-back direction, and two ends of the middle beam 126 are respectively welded with the front beam 123 and the rear beam 124 of the middle frame. In other embodiments, the center rail 126 may also be laterally centered left and right and welded at its ends to the center frame left rail 121 and center frame right rail 122, respectively. Frame connection structures 125 are arranged on the middle-section frame front cross member 123 and the middle-section frame rear cross member 124, and the frame connection structures 125 at the front part and the rear part are correspondingly fixedly connected with the rear end of the front-section frame 11 and the front end of the rear-section frame.

As shown in fig. 1 and 2, a second battery assembly 30 is installed in the rectangular frame so as not to protrude to the top surface of the rectangular frame, and a first battery assembly 20 is installed on the upper side of the front frame at the rear of the cab.

As shown in fig. 3, the first battery assembly 20 includes a back battery holder 22 fixed to the front frame 11 and a plurality of first power batteries 21 mounted in layers on the back battery holder 22, the number of the first power batteries 21 being six, and the longitudinal direction of each first power battery 21 being arranged in the left-right direction. The front frame 11 includes two front frame rails each having a channel-shaped cross-section, and the rear battery brackets 22 are disposed on the upper leg portions of the front frame rails, and the left and right lower mounting brackets of the rear battery brackets 22 are symmetrically mounted on the waist side surfaces of the left and right front frame rails. The first power cell 21 is a standard H-pack power cell used in the industry.

As shown in fig. 4 and 5, the second battery assembly 30 includes a battery bracket set suspended from the lower leg portions of the left and right center frame rails 121 and 122 of the center frame 12 and a plurality of second power batteries 31 mounted on the battery bracket set. The number of the second power cells 31 is two, and each layer includes four second power cells 31 arranged in a "field" shape.

As shown in fig. 6, the battery bracket group comprises four pairs of battery brackets 32 which are parallel to each other and are arranged vertically to the middle beam, each pair of battery brackets 32 comprises a stand column 322, a strip-shaped upper supporting plate 323 and a lower supporting plate 321, the end parts of the upper supporting plates 323 are fixedly connected with the lower leg parts of the left longitudinal beam 121 and the right longitudinal beam 122 of the middle section frame of the rectangular frame, and the middle part is fixedly connected with the lower flange of the middle beam 126; the lower supporting plate 321 is arranged below the upper supporting plate 323, and two ends of the lower supporting plate are bent upwards and fixedly connected to lower leg parts of the left side rail 121 and the right side rail 122 of the middle section frame on the rectangular frame; the lower end of the upright column 322 is fixedly connected with the lower supporting plate 321, and the upper end is fixedly connected with the lower flange of the middle beam 126. The number of battery carriers 32 may be set depending on the length of the rectangular frame and the size of the battery, and typically two battery carriers are paired for fixedly mounting the power battery.

The upper support plate 323 may be an integral structure, or may be formed by arranging the first upper support plate 3231 and the second upper support plate 3232 along the length direction thereof, as shown in fig. 6, the ends of the first upper support plate 3231 and the second upper support plate 3232 adjacent to the middle beam 126 are fixedly connected with the middle beam 126 or fixedly connected with the upper ends of the columns.

The second power battery positioned at the upper layer is fixedly arranged on the upper supporting plate, and the second power battery positioned at the lower layer is fixedly arranged on the lower supporting plate. The standard C-pack power battery is a standard C-pack power battery used in the industry.

As shown in fig. 6, the battery bracket assembly may further be provided with torsion plates 33 in the form of strips, and the torsion plates 33 are disposed perpendicularly to the lower plates 321 and fixedly connected to the respective lower plates 321. The torsion plate 33 is fixedly connected with each lower support plate 321, thereby forming a vertically and horizontally connecting structure and increasing the stability of the lower support plates 321 in the battery bracket set. The number of the torsion plates 33 may be plural as needed.

In the electric truck of the embodiment, one part of power batteries is arranged behind a cab, the other part of power batteries is arranged in a middle section frame accommodating cavity of the integrated frame, and the power batteries are arranged by fully utilizing the lower space of the frame on the premise of meeting the ground clearance. Under the condition that the wheelbase and the loading space are not affected, six first power batteries and eight second power batteries can be arranged at most, the total electric quantity reaches 705KHh at most, and the requirement of transportation of the electric truck in a larger mileage scene is met.

Claims

1. The electric truck is characterized in that a frame of the electric truck comprises a front section frame, a middle section frame and a rear section frame which are sequentially and fixedly connected, a cab is arranged on the front section frame, a plurality of axles are respectively arranged on the front section frame and the rear section frame, the middle section frame comprises a rectangular frame formed by welding two middle section longitudinal beams and two middle section cross beams in a head-tail mode, and the width of the rectangular frame in the left-right direction is larger than that of the rectangular frame in the left-right direction of the front-back Duan Chejia; a second battery component which does not protrude out of the top surface of the rectangular frame is arranged in the rectangular frame, and a first battery component is arranged on the upper side of the front section frame behind the cab.

2. The electric truck of claim 1 wherein the first battery assembly includes a back battery bracket secured to the front frame and a plurality of first power cells mounted in layers to the back battery bracket.

3. The electric truck according to claim 2, wherein the number of the arrangement layers of the first power cells is not more than six, and the longitudinal direction of each of the first power cells is arranged in the left-right direction.

4. The electric truck according to claim 2 or 3, wherein the front section frame includes two front section frame rails having a channel-shaped cross-sectional structure in cross-section, the rear battery bracket is placed on the upper leg portion of the front section frame rail, and left and right lower mounting brackets of the rear battery bracket are symmetrically mounted on the waist sides of the left and right front section frame rails.

5. The electric truck of any one of claims 1 to 3 wherein the cross-sectional shapes of the mid-section side rails and the mid-section cross-members are channel-sectional structures, and the second battery assembly includes a battery bracket assembly suspended from the lower leg portion of the corresponding beam in the mid-section frame and a plurality of second power cells mounted to the battery bracket assembly.

6. The electric truck of claim 5, wherein the number of layers of the second power cells is two, each layer comprising four of the second power cells arranged in a "field" configuration.

7. The electric truck of claim 6, wherein the center sill further comprises a center sill disposed within the rectangular frame and having an i-shaped cross-sectional configuration, the center sill being disposed longitudinally centered fore and aft and having both ends welded to the center sill respectively, or the center sill being disposed laterally centered left and right and having both ends welded to the center sill respectively.

8. The electric truck of claim 7, wherein the battery bracket set comprises a plurality of battery brackets which are parallel to each other and are arranged vertically to the middle beam, each battery bracket comprises a column, an upper supporting plate and a lower supporting plate which are in a strip shape, the end parts of the upper supporting plates are fixedly connected with the lower leg parts of the corresponding beams on the rectangular frame, and the middle parts of the upper supporting plates are fixedly connected with the lower flanges of the middle beams; the lower supporting plate is arranged below the upper supporting plate, and two ends of the lower supporting plate are bent upwards and fixedly connected to the lower leg parts of the corresponding beams on the rectangular frame; the lower end of the upright post is fixedly connected with the lower supporting plate, and the upper end of the upright post is fixedly connected with the lower flange of the middle beam.

9. The electric truck of claim 8, wherein the battery carrier assembly further comprises at least one torsion plate in the form of a slat, the torsion plate being disposed perpendicular to the lower trays and fixedly connected to each lower tray.

10. The electric truck of claim 8 wherein the second power cell at an upper level is fixedly mounted on the upper tray and the second power cell at a lower level is fixedly mounted on the lower tray.