CN216507910U

CN216507910U - Lightweight aluminum alloy battery cover

Info

Publication number: CN216507910U
Application number: CN202123307978.7U
Authority: CN
Inventors: 张伟夫; 陆林斌; 杨坤; 王雨; 夏冰虎; 余瑶
Original assignee: Epp Vehicles Co ltd
Current assignee: Epp Vehicles Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-13
Anticipated expiration: 2031-12-27

Abstract

The utility model belongs to the technical field of new energy buses, and particularly discloses a lightweight aluminum alloy battery cover, which is mainly made of aluminum profiles and comprises a cover body frame, a front end face, a rear end face, a top access door and a side access door; the front end face and the rear end face are fixed on the cover body frame in a bonding or welding mode respectively, the top access door is fixed on the upper end face of the cover body frame through a hinge, and the side access doors are fixed on the left end face and the right end face of the cover body frame through hinges; the cover body frame is of a cubic structure, the transverse frame is a cross beam, the longitudinal frame is an edge longitudinal beam, the vertical frame is a side stand column, a middle longitudinal beam is arranged on the upper end face of the cubic structure, a front stand column is arranged in the middle of the front end face and the rear end face, a middle cross beam is further arranged on the upper end face, and the whole body is formed by welding. The utility model has simple structure and reasonable design, the special section design meets the requirements of shape, function and the like, and meanwhile, the top access door and the side access door facilitate the maintenance, improve the production efficiency and reduce the production and use cost.

Description

Lightweight aluminum alloy battery cover

Technical Field

The utility model belongs to the technical field of new energy passenger cars, and particularly relates to a light aluminum alloy battery cover.

Background

With the rapid development of new energy passenger cars, pure electric and hydrogen fuel cells are widely used in design. The structural design of the low floor and the low entrance type chassis reduces the height of the floor in the vehicle, and meanwhile, the passenger can conveniently get on or off the vehicle, the space utilization rate in the vehicle is increased, and the riding comfort of the passenger is improved. The change makes the overhead of power battery system become the trend, and along with market competition is fierce day by day, passenger train appearance molding renewal is more and more frequent day by day, including parts such as overhead battery cover, in order to satisfy conditions such as dustproof, rain-proof, heat preservation, and convenient the maintenance, the urgent need of market a suitability is with low costs cover body structure, still should satisfy the design requirement of lightweight environmental protection simultaneously.

The power battery cover shell in the prior art has the following defects:

(1) is not favorable for light weight: the existing battery cover basically takes 3-5 mm of glass fiber reinforced plastics as a covering and square steel as a supporting framework, so that the size of parts is large and the overall weight is heavy.

(2) The environmental protection property is poor: most of the existing battery covers are made of glass fiber reinforced plastic materials, the production and manufacturing processes and the scrapping treatment easily cause environmental pollution, and the recovery value is not high.

(3) Difficulty in maintenance: the space in the top cover of the top of the power battery and the battery cover is limited, the whole cover needs to be disassembled and assembled when parts in the cover are replaced, the workload is large, and the debugging and the use are inconvenient to overhaul.

(4) The cost is high: different glass fiber reinforced plastic molds are required to be opened for different specifications and shapes, and the cost of the mold keeps the price of the mold high.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model discloses a lightweight aluminum alloy battery cover which is simple in structure and reasonable in design, the special section design of an aluminum profile can meet the requirements of modeling, functions and the like, meanwhile, a top access door and a side access door enable the maintenance to be convenient, the aluminum profile and a composite material have good weight reduction effect when used, the production efficiency is improved, and the production and use cost is reduced.

The utility model relates to a lightweight aluminum alloy battery cover, which is characterized in that the main body is an aluminum profile, the cover body structure is simplified by structural design that two sides of the arc section of an extruded profile are provided with water flowing grooves, and the structural and functional requirements of the cover body such as shape, drainage and strength, installation of an access door and the like are ensured by the sectional design of the aluminum profile. The access door increases the access area is all opened to upper portion and side, and the top access door adopts combined material to reduce weight when can satisfy intensity, and side access door switching easy operation, maintenance are convenient, and the use of hidden hinge makes its simple structure handsome in appearance.

Specifically, the main body of the lightweight aluminum alloy battery cover is an aluminum profile and comprises a cover body frame, a front end face, a rear end face, a top access door and a side access door; the front end face and the rear end face are fixed on the cover body frame in a bonding or welding mode respectively, the top access door is fixed on the upper end face of the cover body frame through a hinge, and the side access doors are fixed on the left end face and the right end face of the cover body frame through hinges; the cover body frame is of a cubic structure, the transverse frame is a cross beam, the longitudinal frame is an edge longitudinal beam, the vertical frame is a side upright post, the upper end face of the cubic structure is provided with a middle longitudinal beam, the middle of the front end face and the middle of the rear end face are provided with front upright posts, the upper end face is also provided with a middle cross beam, and the whole body is welded and formed.

The cross section of the side longitudinal beam on the upper end surface of the cover body frame is arc-shaped.

And the side longitudinal beams, the cross beams and the middle longitudinal beam on the upper end surface of the cover body frame are all provided with water flowing grooves, and the water flowing grooves of the whole frame are communicated with each other.

The top access door is fixed on the middle longitudinal beam through a hinge, and the mechanical support rod is installed on the middle cross beam through the installation support and used for supporting the top access door.

The side access door is installed on the side longitudinal beam on the upper end face of the cover body frame through the hidden hinge, the button lock is arranged on the side access door, and the button lock is pressed down when the side access door is closed to ensure that the side access door is in a locked state.

Furthermore, a linkage type access cover plate can be additionally arranged on the side access door, so that the battery cover can be conveniently detached. The upper part of the maintenance cover plate is welded on the linkage rod, the side maintenance door is bonded with a fixed rod, the fixed rod is provided with a mounting hole, the linkage rod is assembled in the mounting hole, and the linkage rod connects a plurality of maintenance cover plates in series; the side access door lower extreme is equipped with lower draw-in groove, and access panel lower part card guarantees the stationarity of its motion in lower draw-in groove. One of the maintenance cover plates is provided with a limit button and a handle.

The utility model has the beneficial effects that:

(1) the battery cover adopts an aluminum alloy framework skin structure, and the maintenance cover plate adopts composite materials or aluminum honeycombs and the like according to requirements. The newly opened aluminum profile with the runner side longitudinal beam meets the waterproof requirement, meanwhile, the requirements of functions and structural strength such as modeling and access door installation are met, the requirements of heat preservation, waterproofness and the like of the battery cover are met by using the composite material, and the requirements of the functions and the structural strength of the battery cover are met under the matching of the aluminum profile and the composite material, and meanwhile, the light weight is achieved.

(2) The aluminum profile production and manufacturing process does not produce pollution, aluminum products can be recovered by 100 percent, and the aluminum products can be repeatedly recycled to assist the national double-carbon target strategy.

(3) All-round maintenance is realized to the access door that all opens on side and the higher authority, and upper portion access door adopts combined material, and the side access door satisfies the molding demand and adopts hidden hinge fixed knot simple structure pleasing to the eye, and coordinated type access door can be the switching easy access simultaneously.

(4) Through the special cross-sectional design of aluminium alloy, simplify the cover body structure, interlude major structure can adjust according to the demand, does not produce the mould expense, and design flexibility and production efficiency nature are high.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic sectional view showing the assembled state of the present invention;

FIG. 4 is a schematic cross-sectional view of the upper end side stringer;

FIG. 5 is a schematic view of an access panel on a side access door of the present invention;

FIG. 6 is a schematic view of the installation of the access panel on the side access door of the present invention.

In the figure: 1-cover body frame, 2-front end face, 3-rear end face, 4-top access door, 5-side access door, 6-side longitudinal beam, 61-inner water flowing groove and 62-lower water flowing groove; 7-middle longitudinal beam, 8-cross beam, 9-side upright column, 10-front upright column, 12-middle cross beam, 13-hidden hinge, 14-button lock, 15-hinge, 16-mechanical stay bar, 17-mounting bracket, 18-rubber plastic cotton, 19-vehicle body top cover framework, 20-battery box, 21-top cover modeling baffle, 22-maintenance cover plate, 23-handle, 24-limit button, 25-fixing rod, 26-linkage rod and 27-lower clamping groove.

Detailed Description

The utility model is further illustrated by the following figures and examples.

Examples

As shown in fig. 1-2, a lightweight aluminum alloy battery cover, the main body of which is an aluminum profile, includes a cover frame 1, a front end face 2, a rear end face 3, a top access door 4 and a side access door 5; preceding terminal surface 2 and rear end face 3 are fixed on cover body frame 1 through bonding or welding mode respectively, top access door 4 passes through the hinge to be fixed at cover body frame up end, side access door 5 passes through the hinge to be fixed at cover body frame left and right sides terminal surface.

As shown in fig. 2, the cover body frame is of a cubic structure, the transverse frame is a cross beam 8, the longitudinal frame is an edge longitudinal beam 6, the vertical frame is a side upright post 9, the upper end face of the cubic structure is provided with a middle longitudinal beam 7, a front upright post 10 is arranged in the middle of the front end face and the rear end face, the upper end face is also provided with a middle cross beam 12, and the whole body is formed by welding.

As shown in figure 4, the cross section of the longitudinal beam at the edge of the upper end face of the cover body frame is arc-shaped, the arc shape meets the requirement of the cover body on transition from the upper surface to the side surface, and the inner side and the lower part of the arc section bar are provided with water flowing grooves, so that the drainage requirement is met.

The cross beam 8 and the middle longitudinal beam 7 on the upper end surface of the cover body frame are both provided with water flowing grooves, and the water flowing grooves of the whole frame are communicated with each other to ensure the drainage and sealing performance.

The rubber plastic cotton 18 is stuck inside the front end face 2 and the rear end face 3 to meet the heat preservation requirement.

As shown in fig. 3, the length, width, height, and other dimensions of the lightweight main cell cover are designed according to the structure and number of the battery boxes 20 and the structural requirements of the roof frame 19, and are integrally fixed to the roof frame 19.

Composite material is selected for use to top access door 4, and thermal insulation performance and intensity homoenergetic reach the requirement, are fixed in on middle part longeron 7 through hinge 15, and mechanical vaulting pole 16 passes through installing support 17 to be installed on middle part crossbeam 12, and mechanical vaulting pole 16 can play the supporting role when opening top access door 4 and guarantee to overhaul the convenience.

Optionally, the mounting bracket is an L-shaped bracket, and a mounting circular hole is formed in the mounting bracket.

The side access door 5 is a framework skin structure, and rubber plastic cotton 18 is pasted inside, the side access door 5 is installed on the side longitudinal beam 6 of the upper end surface of the cover body framework through a hidden hinge 13, a button lock 14 is arranged on the side access door 5, the button lock 14 is pressed down when the side access door is closed to ensure that the side access door is in a locking state, the hidden hinge 13 is provided with a micro damping cylinder, and a traditional air spring or a mechanical support rod is not needed in the installation structure to serve as a support when the access door is opened, so that the cover body structure is simple and attractive.

In actual application, most of vehicle types can have a top cover modeling baffle 21, the side access door 5 cannot be opened upwards completely to achieve the purpose of maintenance, and at the moment, the linkage type access cover plate 22 needs to be additionally arranged on the side access door 5 to facilitate the disassembly of the battery cover.

As shown in fig. 6, the upper part of the access cover plate 22 is welded on a linkage rod 26, a fixing rod 25 is bonded on the side access door 5, the fixing rod is provided with a mounting hole, the linkage rod 26 is assembled in the mounting hole, and the linkage rod 26 connects a plurality of access cover plates in series; the lower end of the side access door is provided with a lower clamping groove 27, and the lower part of the access cover plate 22 is clamped in the lower clamping groove 27, so that the movement stability of the access cover plate is ensured. Install limit button 24 and handle 23 on one of them access panel 22, limit button one end is installed on side access door 5, presses limit button 24 coordinated type access panel and is in portable state, waves one of them access panel of handle 23 and removes, drives all access panels 22 through gangbar 26 and is in the state of opening or closing forward or backward movement in unison.

Claims

1. The utility model provides a lightweight aluminum alloy battery cover, the main part is the aluminium alloy, its characterized in that: comprises a cover body frame (1), a front end surface (2), a rear end surface (3), a top access door (4) and a side access door (5); the front end face (2) and the rear end face (3) are fixed on the cover body frame (1) in an adhering or welding mode respectively, the top access door (4) is fixed on the upper end face of the cover body frame through a hinge, and the side access doors (5) are fixed on the left end face and the right end face of the cover body frame through hinges; the cover body frame (1) is of a cubic structure, the transverse frame is a cross beam (8), the longitudinal frame is an edge longitudinal beam (6), the vertical frame is a side upright post (9), the upper end face of the cubic structure is provided with a middle longitudinal beam (7), a front upright post (10) is arranged in the middle of the front end face and the rear end face, the upper end face is further provided with a middle cross beam (12), and the whole welding forming is realized.

2. The light-weight aluminum alloy battery cover according to claim 1, characterized in that: and the side longitudinal beams, the cross beams and the middle longitudinal beam on the upper end surface of the cover body frame are all provided with water flowing grooves, and the water flowing grooves of the whole frame are communicated with each other.

3. The light-weight aluminum alloy battery cover according to claim 1, characterized in that: the cross section of the side longitudinal beam on the upper end surface of the cover body frame is arc-shaped.

4. The light-weight aluminum alloy battery cover according to claim 1, characterized in that: rubber and plastic cotton (18) is respectively stuck to the front end face, the rear end face and the inner part of the side access door.

5. The light-weight aluminum alloy battery cover according to claim 1, characterized in that: the top access door (4) is fixed on the middle longitudinal beam (7) through a hinge (15), and the mechanical support rod (16) is installed on the middle cross beam (12) through an installation support (17) and used for supporting the top access door.

6. The light-weight aluminum alloy battery cover according to claim 1, characterized in that: the side access door (5) is installed on the side longitudinal beam on the upper end face of the cover body frame through a hidden hinge (13), and a button lock (14) is arranged on the side access door (5).

7. The light-weight aluminum alloy battery cover according to claim 1, characterized in that: and a linkage type maintenance cover plate (22) is additionally arranged on the side maintenance door (5).

8. The light-weight aluminum alloy battery cover according to claim 7, characterized in that: the upper part of the maintenance cover plate (22) is welded on a linkage rod (26), a fixed rod (25) is bonded on the side maintenance door (5), a mounting hole is formed in the fixed rod, the linkage rod (26) is assembled in the mounting hole, and the linkage rod (26) connects a plurality of maintenance cover plates together in series; the lower end of the side access door is provided with a lower clamping groove (27), and the lower part of the access cover plate (22) is clamped in the lower clamping groove (27); one of the access cover plates (22) is provided with a limit button (24) and a handle (23).