Split type light-weight rechargeable battery frame structure

Abstract

The utility model relates to the technical field of battery frames, in particular to a split type lightweight rechargeable battery frame structure. The battery pack mounting structure comprises connecting frame assemblies, connecting longitudinal beams for connecting the connecting frame assemblies, a battery pack mounting framework assembly arranged between the connecting frame assemblies, and an outer sealing plate which is arranged outside the connecting frame assemblies and wraps the whole connecting frame assemblies, the connecting frame assembly comprises side stand columns arranged on the two sides, a middle stand column arranged between the side stand columns, connecting longitudinal beams connected with the side stand columns and the ends of the middle stand column, and reinforcing columns arranged between the middle stand column and the side stand columns. The beneficial effects of the utility model are that: the technical scheme adopts fragmented transportation to a main engine plant for assembly, so that the transportation space is saved, and the transportation cost is reduced; bolt connection is adopted, operation is easy and convenient, the requirement for assembling workers is low, fatigue failure of welding seams is avoided, and the light weight of the battery frame is achieved on the premise that the strength is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery frame technical field especially relates to a piece -type lightweight charging battery frame structure. BACKGROUND

[0002] Under the background of double carbon, new energy heavy trucks develop rapidly, as one of the core components of electric vehicles, the charging battery frame industry also rises with the development of new energy heavy trucks. At present, aluminum battery frame cannot be popularized in the market because of its performance weakening characteristics after material welding; the existing battery frame is mostly steel pipe butt welding structure, which cannot be transported in pieces, and after welding the assembly, the volume is large, the occupied space is large, and the transportation cost is high. In order to ensure the precision of the structure, a large number of welding fixtures need to be invested, and some still need to be shaped to meet the tolerance requirements, so the process cost is high. In addition, the weight of the steel battery frame is not advantageous, which is contrary to the growing environmental protection requirements.

[0003] Therefore, it is necessary to design a piece -type lightweight charging battery frame structure to solve the above problems. INVENTION CONTENTS

[0004] The utility model aims at providing a piece -type lightweight charging battery frame structure to overcome the above-mentioned deficiencies existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A piece -type lightweight charging battery frame structure, which comprises a connecting frame assembly, a connecting longitudinal beam for connecting the connecting frame assemblies, a battery pack mounting skeleton assembly placed between the connecting frame assemblies, and an outer sealing plate placed outside the connecting frame assemblies and wrapping the entire connecting frame assembly, the connecting frame assembly comprises side columns placed on both sides, middle columns placed in the middle of the side columns, connecting longitudinal beams connected with the end of the side columns and the middle columns, and reinforcing columns placed between the middle columns and the side columns; and the reinforcing column is in X-shaped structure, and the connecting longitudinal beam is provided with a middle column link casting matched with the connection of the battery pack mounting skeleton assembly.

[0007] Preferably, the connecting longitudinal beam is provided with main positioning holes and auxiliary positioning holes, and the main positioning holes and the auxiliary positioning holes are connected with the side columns of the connecting frame assembly through the side column outer connecting casting and the side column inner connecting casting, and the middle columns of the connecting frame assembly are connected with the connecting longitudinal beam through the middle column link casting.

[0008] Preferably, the connecting frame assembly and the outer end of the connecting longitudinal beam are connected through a side column connecting casting assembly, the side column connecting casting assembly comprises a side column outer connecting casting arranged on the outer side and a side column inner connecting casting arranged on the inner side; the side column outer connecting casting and the side column inner connecting casting are made of high-strength cast aluminum material.

[0009] Preferably, the side column outer connecting casting is used for connecting the outer side of the connecting frame and the outer side of the connecting longitudinal beam and is fixedly connected through bolts and nuts, and the side column inner connecting casting is used for connecting the inner side of the connecting frame and the inner side of the connecting longitudinal beam and is fixedly connected through bolts and nuts.

[0010] The beneficial effects of the utility model are that: the technical scheme is transported to the main machine factory in pieces for assembly, transportation space is saved, and transportation cost is reduced; bolts are adopted for connection, operation is simple and convenient, the requirement for assembly workers is low, welding fatigue failure is avoided, and the light weight of the battery frame is realized under the premise of ensuring strength. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure schematic view of the utility model of a piece type light weight charging battery frame structure.

[0012] Figure 2 It is a whole structure schematic view of the utility model of a piece type light weight charging battery frame structure.

[0013] Figure 3 It is a sectional view of the utility model of a piece type light weight charging battery frame structure.

[0014] Figure 4 It is a local detail view of the utility model of a piece type light weight charging battery frame structure, wherein the side column and the connecting longitudinal beam are connected.

[0015] Figure 5 It is a local detail view of the utility model of a piece type light weight charging battery frame structure, wherein the side column and the connecting longitudinal beam are connected.

[0016] Figure 6 It is a local detail view of the utility model of a piece type light weight charging battery frame structure, wherein the side column and the connecting longitudinal beam are connected.

[0017] In the drawing: 1, connecting frame assembly; 3, connecting longitudinal beam; 2, battery pack mounting framework assembly; 4, outer sealing plate. DETAILED DESCRIPTION

[0018] Refer to Figures 1 to 6A kind of split lightweight charging battery frame structure, it includes connecting frame assembly 1, connecting longitudinal beam 3 for connecting the connecting frame assembly with each other, battery pack installation skeleton assembly 2 between the connecting frame assembly, and outer sealing plate 4 outside the connecting frame assembly 1 and wrapping the whole connecting frame assembly;

[0019] The connecting frame assembly 1 includes edge column placed on both sides, middle column placed in the middle of edge column, connecting longitudinal beam connected with the end of the edge column and middle column, and reinforcing column placed between the middle column and edge column;And the reinforcing column is in X-shaped structure, to strengthen the strength of the whole structure, improve stability;The connecting frame assembly 1 that has been connected is transported to the main machine factory together with battery pack installation skeleton assembly 2 and spare part connection assembly 3, all-aluminum outer sealing plate 4, which reduces the space occupied by about 50% in this way of transportation, reduces transportation cost.

[0020] The middle column link casting 13 matched with the connection of the battery pack installation skeleton assembly is opened in the connecting longitudinal beam;

[0021] In order to facilitate the matching and quick installation connection, the main positioning hole 3a and the auxiliary positioning hole 3b are opened on the connecting longitudinal beam, and the main and auxiliary positioning holes are connected with the edge column of the connecting frame assembly 1 through the edge column outer connecting casting 11 and the edge column inner connecting casting 12, and the positioning connection is realized with the middle column link casting 13 on the middle column, that is, the middle column of the connecting frame assembly 1 and the connecting longitudinal beam 3 are connected through the middle column link casting 13;The connection is integrated, and the assembly of the whole frame can be completed by several screw joints, which is simple and convenient, low in requirement for assembly workers, low in process cost, high in connection precision, does not need jig positioning, and reduces investment cost;

[0022] The outer end connection of the connecting frame assembly and the connecting longitudinal beam 3 is connected through the edge column connecting casting assembly, and the edge column connecting casting assembly includes the edge column outer connecting casting 11 placed on the outer side and the edge column inner connecting casting 12 placed on the inner side;The edge column outer connecting casting 11 and the edge column inner connecting casting 12 are made of high-strength cast aluminum material, the edge column outer connecting casting 11 is used to connect the outer side of the connecting frame 1 and the outer side of the connecting longitudinal beam 3, and is fixedly connected through bolts and nuts, the edge column inner connecting casting 12 is used to connect the inner side of the connecting frame 1 and the inner side of the connecting longitudinal beam 3, and is fixedly connected through bolts and nuts, so as to realize the connection of the outermost sides of the two, that is, the connection of the edge column and the connecting longitudinal beam, avoid welding fatigue failure, and realize the lightweight of the battery frame under the premise of ensuring strength;

[0023] The advantages of this utility model are that the technical solution adopts segmented transportation to the main unit factory for assembly, which saves transportation space and reduces transportation costs; the use of bolt connection makes the operation simple and convenient, requires less skill from assembly workers, avoids weld fatigue failure, and achieves lightweighting of the battery frame while ensuring strength.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A segmented lightweight rechargeable battery frame structure, characterized in that: It includes a connecting frame assembly, connecting longitudinal beams for connecting the connecting frame assemblies to each other, a battery pack mounting frame assembly placed between the connecting frame assemblies, and an outer sealing plate placed outside the connecting frame assembly and covering the entire connecting frame assembly. The connecting frame assembly includes side columns on both sides, a central column placed between the side columns, connecting longitudinal beams connected to the ends of the side columns and the central column, and a reinforcing column placed between the central column and the side columns. The reinforcing column has an X-shaped structure, and the connecting longitudinal beams have central column connecting castings that connect with the battery pack mounting frame assembly.

2. The segmented lightweight rechargeable battery frame structure according to claim 1, characterized in that: The connecting longitudinal beam is provided with a main positioning hole and an auxiliary positioning hole. The main positioning hole and the auxiliary positioning hole are respectively connected to the side columns of the connecting frame assembly through the outer connecting casting and the inner connecting casting of the side column. The middle column of the connecting frame assembly is connected to the connecting longitudinal beam through the middle column connecting casting.

3. The segmented lightweight rechargeable battery frame structure according to claim 1, characterized in that: The connecting frame assembly and the outer end of the connecting longitudinal beam are connected by a side column connecting casting assembly. The side column connecting casting assembly includes an outer side column connecting casting placed on the outside and an inner side column connecting casting placed on the inside. The outer side column connecting casting and the inner side column connecting casting are made of high-strength cast aluminum material.

4. The segmented lightweight rechargeable battery frame structure according to claim 1, characterized in that: The outer connecting casting of the side column is used to connect the outer side of the connecting frame and the outer side of the connecting longitudinal beam, and is fixedly connected by bolts and nuts. The inner connecting casting of the side column is used to connect the inner side of the connecting frame and the inner side of the connecting longitudinal beam, and is fixedly connected by bolts and nuts.

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