CN219553807U

CN219553807U - Battery package box body internal fixation structure

Info

Publication number: CN219553807U
Application number: CN202223139494.0U
Authority: CN
Inventors: 陈保国; 刘峰; 王晨
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Jiewei Power Changxing Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-08-18
Anticipated expiration: 2032-11-25

Abstract

The utility model provides a battery pack box body internal fixing structure, which comprises: the two ends of the inner beam are arranged in the battery pack box body, and the battery module is arranged at the top of the inner beam; the inserting piece assembly is sleeved on the inner wall of the inner beam, and the bottom of the inserting piece assembly is provided with the nut assembly; the nut component is arranged at the top of the nut component to the bottom of the inserting piece component and is positioned inside the inner beam. The utility model has the beneficial effects that: the process is simple and convenient, the assembly is simple, the fixing mode is comparatively nimble, uses through interior roof beam and inserted sheet subassembly cooperation, and adjustable battery module mounted position uses through the cooperation of inserted sheet subassembly and nut subassembly, makes the mounted position of interior roof beam installation battery module accurate, uses through interior roof beam, inserted sheet subassembly and nut subassembly cooperation, realizes battery module's fixed connection, guarantees battery package internal connection's stability, improves the fixed insecure problem of battery package aluminum alloy box body inner beam part hookup location.

Description

Battery package box body internal fixation structure

Technical Field

The utility model belongs to the technical field of battery systems in the new energy automobile industry, and particularly relates to an internal fixing structure of a battery pack box body.

Background

At present, the connection and fixation of the battery system box body are mostly realized in a mode of riveting, pressing and back welding nuts, certain limitation is caused on the fixation and connection of the module, particularly, the three fixing modes cannot be well used for assembling reliably and simple in process in the connection and fixation of the aluminum alloy section box body, the mode of pressing and riveting and back welding nuts needs to be provided with holes on the back of the section fastening position, the size of the aluminum alloy section is greatly limited, a boss with smaller area is arranged at the riveting position in a mode of riveting the nuts, the module cannot be well fixed in the fastening of the beam fixing point in the battery pack aluminum alloy section box body, the module cannot be well fixed in the three fixing modes, the vibration test of the battery pack cannot be ensured, and the safety performance of a product is affected.

Disclosure of Invention

In view of the above, the present utility model aims to provide a fixing structure in a battery pack box body, so as to solve the problem of fastening connection on an inner beam of a battery pack aluminum alloy section box body.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

an internal fixation structure of a battery pack case, comprising:

the two ends of the inner beam are arranged in the battery pack box body, the battery module is arranged at the top of the inner beam, and the inner beam is used as a carrier of the inserting sheet assembly;

the inserting piece assembly is sleeved on the inner wall of the inner beam, a nut assembly is arranged at the bottom of the inserting piece assembly, and the inserting piece assembly is used as a carrier of the nut assembly;

the nut assembly is arranged at the top of the nut assembly to the bottom of the inserting piece assembly, the nut assembly is positioned inside the inner beam, and the nut assembly is used for fixing the battery module.

Further, fixed guide plates are respectively arranged on two sides of the inner wall of the inner beam and used for placing the inserting sheet assembly.

Further, a plurality of first mounting holes have been seted up at interior roof beam top, a plurality of locating holes have been seted up respectively at interior roof beam top both ends, a mounting hole is used for installing the battery module, a locating hole is used for fixing a position the inserted sheet subassembly.

Further, the inserting piece assembly comprises a fixing piece and a locating pin, the fixing piece is mounted to the fixed guide plate, the bottom of the locating pin sequentially penetrates through the first locating hole and the fixing piece to be mounted to the nut assembly, and the locating pin is used for locating the fixing piece.

Further, a plurality of No. two mounting holes have been seted up at stationary blade top, a plurality of No. two locating holes have been seted up at the stationary blade both ends, every No. two mounting holes with every No. one the mounting hole corresponds the setting, no. two mounting holes are used for installing the battery module, no. two locating holes are used for installing the locating pin.

Further, a plurality of lightening holes are formed in the top of the fixing piece, and the lightening holes are used for lightening the weight of the fixing piece.

Further, the nut assembly includes fixation nut and positioning nut, fixation nut with positioning nut all installs to the stationary blade bottom, every fixation nut is located every No. two mounting holes bottoms, fixation nut is used for fixing the battery module, every positioning nut is located every No. two positioning holes bottoms, every positioning nut is used for fixing the locating pin.

Compared with the prior art, the battery pack box body inner fixing structure has the following advantages:

the internal fixing structure of the battery pack box body has the advantages of simple process, simple assembly and flexible fixing mode, the mounting position of the battery module can be adjusted through the cooperation of the internal beam and the inserting piece assembly, the mounting position of the battery module mounted on the internal beam is accurate through the cooperation of the inserting piece assembly and the nut assembly, the fixed connection of the battery module is realized through the cooperation of the internal beam, the inserting piece assembly and the nut assembly, the internal connection stability of the battery pack is ensured, and the problem that the connection position of the internal beam part of the battery pack aluminum alloy box body is unstable is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of an inner beam structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an insert assembly according to an embodiment of the present utility model;

fig. 3 is a right side schematic view of an inner beam structure according to an embodiment of the present utility model.

Reference numerals illustrate:

1. an inner beam; 11. a first mounting hole; 12. a first positioning hole; 13. fixing a guide plate; 2. an insert assembly; 21. a fixing piece; 211. a second mounting hole; 212. a second positioning hole; 213. a lightening hole; 22. a positioning pin; 3. a nut assembly; 31. a fixing nut; 32. and positioning a nut.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 3, a battery pack case body inside fixing structure includes:

the two ends of the inner beam 1 are mounted in the battery pack box body, a battery module is mounted at the top of the inner beam 1, and the inner beam 1 is used as a carrier of the inserting piece assembly 2;

the inserting piece assembly 2 is sleeved on the inner wall of the inner beam 1, a nut assembly 3 is arranged at the bottom of the inserting piece assembly 2, and the inserting piece assembly 2 is used as a carrier of the nut assembly 3;

the nut component 3, nut component 3 top is installed to insert piece assembly 2 bottom, nut component 3 is located inside the internal beam 1, nut component 3 is used for fixed battery module.

The internal fixing structure of the battery pack box body has the advantages of simple process, simple assembly and flexible fixing mode, the installation position of a battery module can be adjusted through the matching use of the internal beam 1 and the insert piece assembly 2, the installation position of the battery module installed on the internal beam 1 is accurate through the matching use of the insert piece assembly 2 and the nut assembly 3, the fixed connection of the battery module is realized through the matching use of the internal beam 1, the insert piece assembly 2 and the nut assembly 3, the internal connection stability of the battery pack is ensured, and the problem that the connection position of part of the internal beam 1 of the battery pack aluminum alloy box body is unstable is solved.

In a preferred embodiment of the present utility model, two sides of the inner wall of the inner beam 1 are respectively provided with a fixed guide plate 13, the fixed guide plates 13 are used for placing the insert assembly 2, in actual use, the inner beam 1 is made of AL6061-T6, and has a thickness of 2mm, and the inner beam 1 is formed by extrusion.

In a preferred embodiment of the present utility model, the top of the inner beam 1 is provided with a plurality of first mounting holes 11, two ends of the top of the inner beam 1 are respectively provided with a plurality of first positioning holes 12, the first mounting holes 11 are used for mounting a battery module, the first positioning holes 12 are used for positioning the tab assembly 2, in actual use, the diameter of round holes of the first mounting holes 11 is 7mm, the diameter of round holes of the first positioning holes 12 is 6mm, and in this embodiment, two first positioning holes 12 are respectively provided at two ends of the top of the inner beam 1.

In a preferred embodiment of the present utility model, the insert assembly 2 includes a fixing piece 21 and a positioning pin 22, the fixing piece 21 is mounted to the fixed guide plate 13, the bottom of the positioning pin 22 sequentially passes through the first positioning hole 12 and the fixing piece 21 to be mounted to the nut assembly 3, the positioning pin 22 is used for positioning the fixing piece 21, and in actual use, the fixing piece 21 is made of AL6061-T6 and has a thickness of 1.5mm.

In a preferred embodiment of the present utility model, a plurality of second mounting holes 211 are formed in the top of the fixing piece 21, a plurality of second positioning holes 212 are formed in two ends of the fixing piece 21, each second mounting hole 211 is disposed corresponding to each first mounting hole 11, the second mounting holes 211 are used for mounting a battery module, the second positioning holes 212 are used for mounting the positioning pins 22, in actual use, the diameter of a round hole of the second mounting holes 211 is 7mm, and the diameter of a round hole of the second positioning holes 212 is 6mm.

In a preferred embodiment of the present utility model, a plurality of weight-reducing holes 213 are formed at the top of the fixing piece 21, the weight-reducing holes 213 are used for reducing the weight of the fixing piece 21, and in actual use, the weight-reducing holes 213 are oval, and the weight-reducing holes 213 reduce the weight of the fixing piece 21 on the basis of ensuring the strength of the fixing piece 21.

In a preferred embodiment of the present utility model, the nut assembly 3 includes a fixing nut 31 and a positioning nut 32, the fixing nut 31 and the positioning nut 32 are mounted to the bottom of the fixing piece 21, each fixing nut 31 is located at the bottom of each second positioning hole 211, the fixing nut 31 is used for fixing the battery module, each positioning nut 32 is located at the bottom of each second positioning hole 212, each positioning nut 32 is used for fixing the positioning pin 22, in actual use, a worker sequentially passes bolts through the mounting plate of the battery module, the first mounting hole 11 and the second mounting hole 211 to be connected to the fixing nut 31, thereby fixing the battery module, and the worker sequentially passes the positioning pin 22 through the first positioning hole 12 and the second positioning hole 212 to be connected to the positioning nut 32, thereby positioning the fixing piece 21 and the inner beam 1 after being assembled.

Working principle of battery pack box body inner fixing structure:

this new structure is when the assembly, every fixation nut 31 corresponds the setting with every No. two mounting holes 211, the staff welds every fixation nut 31 to the stationary blade 21 bottom, every positioning nut 32 corresponds the setting with every No. two locating holes 212, the staff welds every positioning nut 32 to the stationary blade 21 bottom, after the welding is accomplished, the staff installs the stationary blade 21 to inside the roof beam 1 through fixed deflector 13, the staff passes locating pin 22 in proper order and is connected to positioning nut 32 with No. one locating hole 12 and No. two locating holes 212, realize the location of stationary blade 21, guarantee that No. one mounting hole 11 and No. two mounting holes 211 correspond accurately, the staff passes the mounting plate of battery module with the bolt in proper order, no. one mounting hole 11 and No. two mounting holes 211 are connected to fixation nut 31, realize battery module's fixed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. An inside fixed knot of battery package box constructs, its characterized in that: comprising the following steps:

the battery pack comprises an inner beam (1), wherein two ends of the inner beam (1) are arranged in a battery pack box body, a battery module is arranged at the top of the inner beam (1), and the inner beam (1) is used as a carrier of an inserting piece assembly (2);

the inserting piece assembly (2) is sleeved on the inner wall of the inner beam (1), a nut assembly (3) is arranged at the bottom of the inserting piece assembly (2), and the inserting piece assembly (2) is used as a carrier of the nut assembly (3);

the nut assembly (3), nut assembly (3) top is installed to inserted sheet subassembly (2) bottom, nut assembly (3) are located inside roof beam (1), nut assembly (3) are used for fixed battery module.

2. The battery pack case body inside fixing structure according to claim 1, wherein: fixed guide plates (13) are respectively arranged on two sides of the inner wall of the inner beam (1), and the fixed guide plates (13) are used for placing the inserting sheet assembly (2).

3. The battery pack case body inside fixing structure according to claim 2, wherein: a plurality of first mounting holes (11) have been seted up at interior roof beam (1) top, a plurality of locating holes (12) have been seted up respectively at interior roof beam (1) top both ends, a mounting hole (11) are used for installing the battery module, a locating hole (12) are used for fixing a position inserted sheet subassembly (2).

4. A battery pack case body inside fixing structure according to claim 3, wherein: the inserting piece assembly (2) comprises a fixing piece (21) and a locating pin (22), the fixing piece (21) is mounted to the fixed guide plate (13), the bottom of the locating pin (22) sequentially penetrates through the first locating hole (12) and the fixing piece (21) to be mounted to the nut assembly (3), and the locating pin (22) is used for locating the fixing piece (21).

5. The battery pack case body inside fixing structure according to claim 4, wherein: a plurality of No. two mounting holes (211) have been seted up at stationary blade (21) top, a plurality of No. two locating holes (212) have been seted up at stationary blade (21) both ends, every No. two mounting holes (211) and every No. one mounting hole (11) correspond the setting, no. two mounting holes (211) are used for installing the battery module, no. two locating holes (212) are used for installing locating pin (22).

6. The battery pack case body inside fixing structure according to claim 5, wherein: a plurality of lightening holes (213) are formed in the top of the fixing piece (21), and the lightening holes (213) are used for lightening the weight of the fixing piece (21).

7. The battery pack case body inside fixing structure according to claim 5, wherein: nut subassembly (3) are including fixation nut (31) and positioning nut (32), fixation nut (31) with positioning nut (32) all install to stationary blade (21) bottom, every fixation nut (31) are located every No. two mounting holes (211) bottoms, fixation nut (31) are used for fixing battery module, every positioning nut (32) are located every No. two positioning hole (212) bottoms, every positioning nut (32) are used for fixing locating pin (22).