CN217823118U

CN217823118U - Battery box for battery pack with double-layer module structure

Info

Publication number: CN217823118U
Application number: CN202221264421.1U
Authority: CN
Inventors: 左健
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-11-15
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a battery box for double-deck module structure battery package, including the box assembly, the box assembly includes that the upper end is equipped with the box of top cap, the inner diapire dismantlement formula of box is connected with lower floor's support, and upper support is installed to the upper end of lower floor's support, has all placed battery module unit in lower floor's support and the upper support. This a battery box for double-deck module structure battery package, upper and lower layer support in the box still under firm reliable prerequisite of structure when guaranteeing battery module unit to encounter vibration, mechanical shock, collision, make full use of the space in the box. The double-layer module structure satisfies the endurance mileage of the electric bus, and meanwhile, the guide rail with the rolling bearing is designed at the bottom of the battery box body to facilitate the installation and the disassembly of the battery pack on the bus body.

Description

Battery box for battery pack with double-layer module structure

Technical Field

The application relates to new forms of energy power battery technical field, especially relates to a battery box that is used for double-deck module structure battery package.

Background

The new energy automobile is used as a high-point manufacture in a new era of the automobile industry, and the development of the new energy automobile brings huge economic and social benefits such as traffic energy consumption structure optimization, urban air pollution reduction and the like. Related policies of the country are supported to directly promote the industrial development of new energy vehicles, the popularization of the electric buses is obviously increased in the country in recent years, and the pure electric bus industry has good market trend prediction and rising space.

The development of the electric bus not only can consolidate the prior leading advantages, but also can better cultivate the battery, electric control, motor and battery charging and replacing technology, provide experience for the electric passenger vehicle and drive and promote the development of the electric vehicle industry chain in China. In the process of electric driving of the push bus, how to arrange a battery pack with required electric quantity in an effective whole bus installation space and facilitate subsequent maintenance and battery replacement is a problem of continuous optimization design. To this end, we propose a battery case for a battery pack of a double-layered module structure.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present patent application to provide a battery box for a battery pack of a double-layered module structure, which solves the above-mentioned problems of the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a battery box for double-deck module structure battery package, includes the box assembly, the box assembly includes that the upper end is equipped with the box of top cap, the interior diapire dismantlement formula of box is connected with lower floor's support, and upper support is installed to the upper end of lower floor's support, has all placed battery module unit in lower floor's support and the upper support.

Further, the lower layer support includes that first protects the frame and is located the first second that protects the frame top and protects the frame, and first protecting frame and second protect and be connected with a plurality of bracing piece between the frame.

Furthermore, any relative outer side wall of the second protection frame is connected with an angle steel, the inner bottom wall of the box body is connected with a frame which limits the first protection frame, a plurality of screw holes are formed in the transverse section of the angle steel, screw grooves corresponding to the screw holes are formed in the frame, and the angle steel penetrates through the screw holes to be screwed into the screw grooves to be fixedly connected with the frame.

Further, the upper support includes that the third protects the frame and connects the tray at the third protects frame inside wall lower extreme, and the lower extreme that the third protected the frame is connected with a plurality of in bank form and lays and the outside connecting rod that extends in both ends, and one section screw hole is seted up to the connecting rod outside extension, offers the thread groove that corresponds with the screw hole on the second protects the frame, and the upper support passes screw hole screw in thread groove through the bolt and lower floor's support fixed connection.

Furthermore, a plurality of limiting mechanisms for limiting the movement of the battery module unit are arranged on the lower layer support and the upper layer support.

Furthermore, the limiting mechanism comprises a pressing strip in an inverted U-shaped structure, the pressing strip is clamped on the battery module unit, pull rods are inserted into two ends of the pressing strip, and nuts used for fixing the pull rods are welded on the first protective frame and the third protective frame.

Furthermore, the lower ends of the side walls of the first protection frame and the third protection frame are provided with concave grooves.

Furthermore, the box assembly also comprises two guide rails which are arranged at the lower end of the box body and are arranged in parallel, a plurality of rolling bearings are rotatably connected onto the guide rails, and a plurality of reinforcing ribs used for supporting the bottom of the box body are connected between the two guide rails.

Compared with the prior art, the beneficial effects of the utility model are that: this a battery box for double-deck module structure battery package, upper and lower layer support in the box still under firm reliable prerequisite of structure when guaranteeing battery module unit to encounter vibration, mechanical shock, collision, make full use of the space in the box. The double-layer module structure satisfies the endurance mileage of the electric bus, and meanwhile, the guide rail with the rolling bearing is designed at the bottom of the battery box body to provide convenience for mounting and dismounting the battery pack on the bus body.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the box assembly of the present invention;

FIG. 3 is a schematic view of the assembly structure of the guide rail and the reinforcing rib of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the frame of the present invention;

FIG. 5 is a schematic view of the lower layer bracket of the present invention;

fig. 6 is a schematic view of the three-dimensional structure of the upper bracket of the present invention.

The reference numbers illustrate: the device comprises a box body assembly 1, a box body 101, a guide rail 102, a reinforcing rib 103, a frame 104, a lower layer bracket 2, a first protection frame 201, a second protection frame 202, a support rod 203, angle steel 204, an upper layer bracket 3, a tray 31, a third protection frame 32, a connecting rod 33, a battery module unit 4, a pressing strip 5, a pull rod 6 and a concave groove 7.

Detailed Description

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the spirit of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1-6, the present invention provides a technical solution:

the utility model provides a battery box for double-deck module structure battery package, refers to figure 1, includes box assembly 1, lower floor's support 2 and upper support 3, has all placed battery module unit 4 on lower floor's support 2 and the upper support 3, forms double-deck module structure.

The box assembly 1 comprises a box body 101 with a top cover at the upper end, two guide rails 102 arranged in parallel are installed at the lower end of the box body 101, a plurality of rolling bearings are connected to the guide rails 102 in a rotating mode, a plurality of reinforcing ribs 103 used for supporting the bottom of the box body 101 are connected between the two guide rails 102, the strength of the box body 101 is increased, double-layer modules can be borne by the box body, as shown in fig. 3, the number of the rolling bearings is five, the number of the reinforcing ribs 103 is four, a frame 104 is connected to the inner bottom wall of the box body 101, as shown in fig. 4, the frame 104 is a rectangular structure formed by welding square steel, and a plurality of screw grooves are formed in the upper end of any one of the frame 104 relative square steel.

As shown in fig. 5, the lower bracket 2 includes a first protective frame 201 and a second protective frame 202 located above the first protective frame 201, the second protective frame 202 is provided with a thread groove corresponding to the thread hole, a plurality of support rods 203 are connected between the first protective frame 201 and the second protective frame 202, the first protective frame 201 and the second protective frame 202 are both rectangular structures formed by welding square steel, any opposite outer side wall of the second protective frame 202 is connected with an angle steel 204, a transverse section of the angle steel 204 is provided with a thread hole corresponding to the thread groove, the angle steel 204 passes through a screw hole through a screw to be screwed into the thread groove to be fixedly connected with the frame 104, and the lower bracket 2 is fixed.

As shown in fig. 6, the upper layer support 3 includes a third protective frame 32 and a tray 31 connected to the lower end of the inner side wall of the third protective frame 32, the third protective frame 32 is a rectangular structure formed by welding square steel, the lower end of the third protective frame 32 is connected with a plurality of connecting rods 33 arranged in rows and extending outwards at two ends, one section of the connecting rods 33 extending outwards is provided with a threaded hole, and the upper layer support 3 passes through the threaded hole through a bolt and is screwed into the threaded groove to be fixedly connected with the lower layer support 2.

All install the stop gear of a plurality of restriction battery module unit 4 activity on lower floor's support 2 and the upper strata support 3, stop gear includes one and becomes layering 5 of type of falling U structure, and layering 5 card is on battery module unit 4, and the both ends of layering 5 are pegged graft and are had pull rod 6, and the welding has the nut that is used for fixed pull rod 6 on first protecting frame 201 and the third protecting frame 32, and the head of pull rod 6 is equipped with the external screw thread that matches with the nut.

As a preferred embodiment of the present invention, the lower ends of the sidewalls of the first protective frame 201 and the third protective frame 32 are provided with a concave groove 7 for the outlet of the heating film terminal on the battery module unit 4.

Battery module unit 4 is formed by a plurality of electric cores through overflowing the pole piece and overflowing the connection row connection, two piece upper and lower battery module units 4 realize the cross-over connection through the connection row, be connected with high-pressure plug connector again and form a complete return circuit, the both sides of box 101 front end are equipped with the notch that high-pressure plug connector passed, there is the BMU fixed plate box 101's front end through screwed connection, battery management system installs on the BMU fixed plate, battery module unit 4 is the well-known of technical in the field, it is here general knowledge that one is not different to describe repeatedly.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims be embraced by the present application.

Claims

1. The utility model provides a battery box for double-deck module structure battery package, includes box assembly (1), and box assembly (1) includes that the upper end is equipped with box (101) of top cap, its characterized in that: the inner bottom wall detachable type of box (101) is connected with lower floor's support (2), and upper support (3) are installed to the upper end of lower floor's support (2), have all placed battery module unit (4) in lower floor's support (2) and upper support (3).

2. The battery box for the battery pack of the double-layer module structure as claimed in claim 1, wherein: the lower layer support (2) comprises a first protective frame (201) and a second protective frame (202) located above the first protective frame (201), and a plurality of support rods (203) are connected between the first protective frame (201) and the second protective frame (202).

3. The battery box for the battery pack of double-layer module structure as claimed in claim 2, wherein: any relative outer side wall of the second protective frame (202) is connected with angle steel (204), the inner bottom wall of the box body (101) is connected with a frame (104) limiting the first protective frame (201), a plurality of screw holes are formed in the transverse section of the angle steel (204), screw grooves corresponding to the screw holes are formed in the frame (104), and the angle steel (204) penetrates through screw holes to be screwed into the screw grooves to be fixedly connected with the frame (104).

4. The battery box for the battery pack of the double-layer module structure as claimed in claim 2, wherein: upper support (3) protect frame (32) and connect tray (31) at third protect frame (32) inside wall lower extreme including the third, the lower extreme that third protected frame (32) is connected with a plurality of and lays in a row form and connecting rod (33) that both ends outwards extend, one section threaded hole of seting up that connecting rod (33) outwards extend, set up the thread groove that corresponds with the screw hole on second protected frame (202), upper support (3) pass screw hole screw in thread groove through the bolt and lower floor's support (2) fixed connection.

5. The battery box for the battery pack of double-layer module structure as claimed in claim 4, wherein: and the lower-layer support (2) and the upper-layer support (3) are respectively provided with a plurality of limiting mechanisms for limiting the movement of the battery module unit (4).

6. The battery box for the battery pack of double-layer module structure as claimed in claim 5, wherein: the limiting mechanism comprises a pressing strip (5) of an inverted U-shaped structure, the pressing strip (5) is clamped on the battery module unit (4), pull rods (6) are inserted into two ends of the pressing strip (5), and nuts used for fixing the pull rods (6) are welded on the first protective frame (201) and the third protective frame (32).

7. The battery box for the battery pack of double-layer module structure as claimed in claim 4, wherein: the lower ends of the side walls of the first protective frame (201) and the third protective frame (32) are provided with concave grooves (7).

8. The battery box for battery pack of double-layered module structure according to any one of claims 1 to 7, wherein: the box body assembly (1) further comprises two guide rails (102) which are arranged at the lower end of the box body (101) and are arranged in parallel, a plurality of rolling bearings are connected on the guide rails (102) in a rotating mode, and a plurality of reinforcing ribs (103) used for supporting the bottom of the box body (101) are connected between the two guide rails (102).