CN215578913U

CN215578913U - Lithium battery frame assembly

Info

Publication number: CN215578913U
Application number: CN202122110248.1U
Authority: CN
Inventors: 赵兴新; 范汝杰; 吴玲艳; 高长海
Original assignee: Shandong Automobile Manufacturing Co Ltd
Current assignee: Weichai New Energy Commercial Vehicle Co Ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-18
Anticipated expiration: 2031-09-02

Abstract

The utility model relates to a lithium battery frame assembly which is characterized by comprising a left side plate and a right side plate, wherein a bottom plate is welded on the left side and the right side of the bottom plate respectively; the left side plate and the right side plate are provided with the same structure part which comprises a side vertical surface and a bottom joint surface, the side vertical surface is provided with a plurality of lightening holes, the bottom end of the side vertical surface is horizontally bent or punched to form the bottom joint surface, and the bottom joint surface is used for welding with the bottom plate; the left side plate is provided with a wire harness fixing guide bracket; and the right side plate is integrated with a power supply main switch bracket and a wire harness fixing hole position. According to the utility model, the power switch bracket and the wire harness fixing and guiding bracket are integrated through the forming structure of the frame, and the wire harness trend is solidified, so that the wire harness trend can be unified, thereby avoiding the problem that the wire harness trend is disordered and interferes with the frame, realizing product function diversification, reducing the number of parts and installation time, simplifying the structure, reducing cost and improving efficiency. The frame is provided with a plurality of lightening holes, so that the weight of the whole vehicle is effectively reduced.

Description

Lithium battery frame assembly

Technical Field

The utility model relates to the technical field of parts, in particular to a lithium battery frame assembly of a commercial vehicle.

Background

At present, in order to reduce the weight of a whole vehicle, a part of commercial vehicles on the market adopt lithium batteries to replace traditional lead storage batteries. The lithium battery has light weight, and if the original lead storage battery frame is still adopted, the defects of heavy weight, complex structure, low space utilization rate and the like exist. However, the existing commercial vehicle is not provided with a mounting bracket matched with a lithium battery, and the existing technical scheme is that a battery frame and other accessories (such as a power switch bracket and the like) in the mounting structure are separately mounted by using an original mounting mode that a storage battery bracket is additionally provided with a bottom tray for limiting, so that the problems of low material utilization rate and large overall frame weight exist; meanwhile, the problem that the wiring harness is disordered in trend and easily causes interference with the frame exists; in addition, the vehicle carrying the lithium iron battery adopting the scheme has the suspicion that the battery is considered to be temporarily replaced to reduce the quality of the service when the vehicle is listed or annual examined, and certain trouble is caused to the listing or annual examination of a client.

Disclosure of Invention

The utility model discloses a lithium battery frame assembly with a brand new structure based on the technical defects of the existing battery frame structure, and the lithium battery frame assembly is scientific and compact in design structure, high in space utilization rate and light in weight.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

a lithium battery frame assembly is characterized by comprising a left side plate and a right side plate, wherein a bottom plate is welded on the left side and the right side of the bottom plate respectively;

the left side board is provided with a wire harness fixing guide support, and the right side board is integrated with a power supply main switch support and a wire harness fixing hole position.

The bottom plate is formed by stamping or bending an integral plate, and is provided with a horizontal plane for supporting and a limiting surface which is bent or stamped upwards along the front side and the rear side of the horizontal plane and used for limiting the front side and the rear side, and the horizontal plane is provided with lightening holes.

The bottom plate is of a split combined structure and comprises a first bottom plate and a second bottom plate which are oppositely arranged, the two bottom blocks are identical in structure and are composed of a horizontal plane for providing support and a limiting surface which is bent or punched along one side of the horizontal plane and is used for providing front and rear limiting; and the horizontal plane is provided with lightening holes.

The left side plate and the right side plate are provided with the same structure part which comprises a side vertical surface, a bottom joint surface and an installation surface, wherein the side vertical surface is provided with a plurality of lightening holes, the bottom end of the side vertical surface is horizontally bent or punched to one side to form the bottom joint surface, the bottom joint surface is used for being welded with the bottom plate, and the installation surface is bent or punched on one side of the side vertical surface and is provided with a screw hole for realizing the fixed connection between the whole frame and the frame.

The outside of left side board and right side board corresponds respectively and is equipped with a drag hook, and two drag hooks pair the use for the clamp plate of fixed top makes the clamp plate form spacing and protection in the top of lithium cell.

According to the lithium battery frame assembly, the whole frame is formed by adopting a welding combination mode of the bottom plate and the two side plates, the power switch support and the wire harness fixing and guiding support are integrated through the forming structure of the frame, the trend of the wire harness is solidified, the trend of the wire harness can be unified, and the problem that the wire harness interferes with the frame due to disorder trend is avoided. The power switch bracket is integrated, so that the product function diversification is realized, the number of parts and the installation time are reduced, the structure is simplified, and the cost is reduced and the efficiency is improved. The frame is provided with a plurality of lightening holes, so that the weight of the whole vehicle is effectively reduced.

Drawings

FIG. 1: a schematic view of a lithium battery frame assembly of the first embodiment in an installed state (without a pressing plate);

FIG. 2: a schematic view of a lithium battery frame assembly installation state (with a pressing plate) of the first embodiment;

FIG. 3: a schematic structural diagram of a lithium battery frame assembly of the first embodiment;

FIG. 4: the first embodiment is a structural schematic diagram of a lithium battery frame assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Fig. 3-4 are schematic structural diagrams of a lithium battery frame assembly according to this embodiment, and as can be seen, the main structure of the frame assembly includes a bottom plate 5, and a left side plate 3 and a right side plate 4 erected on two sides of the bottom plate 5, which are welded together to form an integral frame.

The bottom plate 5 in the embodiment comprises a first bottom plate 5a and a second bottom plate 5b which are arranged in a front-back opposite manner at a preset interval (the interval is adjusted and adapted according to the specification of the lithium battery), the two bottom blocks have the same structure and are composed of a horizontal plane 51 for providing support and a limiting surface 52 which is bent or punched along one side of the horizontal plane 51 and is used for providing front-back limiting; the horizontal surface 51 is provided with a bottom plate lightening hole 51 a. It should be understood that although this split-type base plate structure is used in the present embodiment, as an alternative to the variation, the base plate may be designed based on the basic function provided by the base plate 5, such as a stamped or bent integral structure.

The left side plate 3 and the right side plate 4 in the embodiment are made of whole plates, and the structural strength of the left side plate and the right side plate is analyzed, so that the plate body is made into a structural form of a support through a body cutting, bending or stamping process under the condition of ensuring the design strength, on one hand, a two-side protection function is provided for the lithium battery 6 on the bottom plate 5, on the other hand, the wire harness 8 is cured and positioned, and the power switch is installed. Specifically, the left side plate 3 and the right side plate 4 in this embodiment have the same basic structure and different functional structures, the same basic structure includes a side elevation a, a bottom contact surface b and a mounting surface c, the side elevation a is provided with a plurality of lightening holes a1, the bottom end of the side elevation is horizontally bent or punched to one side to form the bottom contact surface b, the bottom contact surface b is used for being welded with the bottom plate 5, and the mounting surface c is bent or punched on one side of the side elevation a and is provided with a screw hole c1, so as to realize the fixed connection between the integral frame and the vehicle frame 7. The left side plate 3 and the right side plate 4 are respectively provided with a draw hook d, and the two draw hooks d are used in a pairing mode to fix the pressing plate 10 above the lithium battery, so that the pressing plate is limited and protected above the lithium battery. Besides, a wire harness fixing and guiding support 1 is formed on the left side plate 3, and the wire harness trend is solidified through the wire harness fixing and guiding support 1, so that the wire harness arrangement trend state is uniform. The power supply main switch support 2 and the wiring harness fixing hole position 9 for installing the whole vehicle power supply main switch are arranged on the right side plate 4, the number of installation standard parts of the frame assembly of the integrated power supply main switch support 2 is reduced, the installation time is saved, and the cost reduction and the efficiency improvement are obvious.

According to the lithium battery frame assembly, a state diagram of an installed lithium iron battery is shown in fig. 1-2, the battery is limited in the X direction by an upper battery pressing plate, the Y direction is limited by a flanging (namely a limiting surface) of a battery bracket bottom plate, and the Z direction is limited by a battery frame bottom plate and the pressing plate. The structure of the whole frame assembly is scientific, reasonable and compact, and the structure is simple. The space arrangement scheme of the original chassis is matched to the maximum extent, other special parts do not need to be newly produced, and the space arrangement design requirement of the chassis of a light newly developed vehicle type can be met.

In summary, although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims

1. A lithium battery frame assembly is characterized by comprising a left side plate and a right side plate, wherein a bottom plate is welded on the left side and the right side of the bottom plate respectively;

the left side plate and the right side plate are provided with the same structure part which comprises a side vertical surface and a bottom joint surface, the side vertical surface is provided with a plurality of lightening holes, the bottom end of the side vertical surface is horizontally bent or punched to form the bottom joint surface, and the bottom joint surface is used for welding with the bottom plate;

the left side plate is provided with a wire harness fixing guide bracket;

and the right side plate is integrated with a power supply main switch bracket and a wire harness fixing hole position.

2. The lithium battery cell frame assembly of claim 1,

3. The lithium battery cell frame assembly of claim 1,

4. A lithium battery cell frame assembly as in claim 1, 2 or 3,

the left side plate and the right side plate are respectively provided with an installation surface, and the installation surfaces are bent or punched on one side of the side vertical surface and are provided with screw holes for realizing the fixed connection between the whole frame and the frame.

5. The lithium battery cell frame assembly of claim 4,