CN218274921U

CN218274921U - Battery module fixing structure and battery pack

Info

Publication number: CN218274921U
Application number: CN202221509232.6U
Authority: CN
Inventors: 闫妮; 王博文
Original assignee: Beijing CHJ Automobile Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2023-01-10
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to a vehicle accessories technical field especially relates to a battery module fixed knot constructs. The battery module fixing structure comprises a bottom guard plate and side guard plates, wherein two opposite sides of the bottom guard plate are respectively provided with a limiting plate, and a positioning space for accommodating a battery module is formed between the limiting plates; the side guard plate is connected with the bottom guard plate and/or the limiting plate, the side guard plate is arranged on one side, back to the positioning space, of the limiting plate, and the side guard plate is used for limiting the battery module in the positioning space. According to the battery module mounting and positioning device, the positioning space is formed by arranging the limiting plate on the bottom protective plate, so that the battery module is mounted and positioned; the battery module is further protected through the side guard plate and is limited in the positioning space, the structural level is simplified through the fixing mode, the number of parts in the battery pack is reduced, the requirement for the position precision of the bolt mounting hole during splicing is lowered, corresponding tools and checking tools are reduced, the installation is facilitated, and the procedures are reduced.

Description

Battery module fixing structure and battery pack

Technical Field

The present disclosure relates to vehicle accessory technology, and more particularly to a battery module fixing structure.

Background

With the continuous development of new energy automobiles, the requirement of a user on the endurance mileage is increased, and the energy of a battery system is also increased, which means that more battery cell units are required to be arranged under the condition that the envelope space of the battery system is the same as the selection of the battery cells, so that the available space of other parts in the battery pack is reduced. In addition, the more numerous parts of the BOM list in the battery pack, the more complicated the process of battery pack assembly, and on the premise of ensuring the mechanical performance of the battery pack, it is a challenge how to use the limited space and components, and simplify the structure of the battery pack.

The bolt or structural adhesive of the fixing structure of the existing battery module is fastened, so that the number of parts of a battery pack is increased, and procedures and equipment for assembling the battery pack in a production line are increased; the bolt fastening needs to control the torque, and the aging strength of the structural adhesive also influences the structural strength of the battery pack; the requirements on the size precision and the positioning position precision of the fastening bolt mounting hole are high, and the precision requirements of the battery pack lower box body splicing tool and the mounting hole detection tool are increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, or at least partially solve the above technical problems, the present disclosure provides a battery module fixing structure including a bottom sheathing plate and a side sheathing plate, wherein,

limiting plates are respectively arranged on two opposite sides of the bottom protective plate, and a positioning space for accommodating the battery module is formed between the limiting plates;

the side guard plate is connected with the bottom guard plate and/or the limiting plate, the side guard plate is arranged on one side, back to the positioning space, of the limiting plate, and the side guard plate is used for limiting the battery module in the positioning space.

Optionally, the surface of the bottom protection plate is provided with a cooling plate, the limiting plates are respectively arranged on two opposite sides of the cooling plate, and the surface of the cooling plate in the positioning space is provided with a heat-conducting structural adhesive.

Optionally, the cooling plate is provided with the installation department, the installation department with the limiting plate homonymy, just the installation department with cooling plate integrated into one piece and coplane, the side guard plate with the installation department is connected.

Optionally, one end of the side guard plate connected with the mounting plate is provided with a gap, the limiting plate is arranged in the gap, and the side guard plate and the limiting plate are coplanar.

Optionally, the bottom guard plate is arranged on the bottom surface formed by the installation part and the cooling plate together, and the bottom guard plate and the installation part are connected with the side guard plate through bolts.

Optionally, be provided with first baffle and second baffle on the side guard plate, first baffle sets up the side guard plate is kept away from the one end of backplate at the bottom, just first baffle is used for restricting the battery module to keeping away from the direction of backplate at the bottom removes, the second baffle sets up side guard plate vertically both sides limit is established, just the second baffle is used for restricting the battery mould to the extending direction of limiting plate removes.

Optionally, one end surface of the first baffle is coplanar with a side surface of the side guard plate, which faces away from the positioning space, and the opposite end surface of the first baffle is exposed out of the side guard plate.

Optionally, the second baffle is disposed at the center of two side edges of the side guard plate.

Optionally, the distance between the two limiting plates is equal to the width of the battery module.

The present disclosure also provides a battery pack including the above battery module fixing structure.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

according to the battery pack mounting and positioning device, the positioning space is formed by arranging the limiting plate on the bottom protective plate, so that the battery module is mounted and positioned, and the battery pack is mounted more conveniently; the battery module is further protected through the side guard plate and is limited in the positioning space, the fixing mode replaces a fastening bolt, the structural level is simplified, the number of parts in the battery pack is reduced, the requirement for the position precision of the bolt mounting hole during splicing is lowered, corresponding tools and checking tools are reduced, the installation is convenient, and the processes are reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic perspective view of the present disclosure;

FIG. 2 is a second schematic front view of the present disclosure;

fig. 3 is a schematic split view of fig. 2 of the present disclosure.

Reference numerals:

1. a bottom guard plate; 2. a side guard plate; 3. a cooling plate; 31. an installation part; 4. a limiting plate; 5. a first baffle.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

As shown in fig. 1 to 3, the present disclosure provides a battery module fixing structure, including a bottom protection plate 1 and a side protection plate 2, wherein, two opposite sides of the bottom protection plate 1 are respectively provided with a limiting plate 4, in order to accurately position the battery module when the battery module is installed, a positioning space for accommodating the battery module is formed between the limiting plates 4 at two sides, a distance between the limiting plates 4 at two sides can be adjusted according to specifications of the battery module or a battery core, preferably, the width between the limiting plates 4 at two sides is specifically equal to the width of the battery module, so that the battery module can be better fixed when placed in the positioning space, and further, when the battery module is in a special-shaped structure, the limiting plates 4 can also be set into a special-shaped plate according to an outer contour of the battery module, so as to better install the battery module;

the side guard plates 2 are mainly used for limiting a battery module in the positioning space, the side guard plates 2 are arranged on one side, back to the positioning space, of the limiting plate 4, and the side guard plates 2 also play a role in protecting the battery module, specifically, the number of the side guard plates 2 can be two, the two side guard plates are respectively arranged on one side, back to the positioning space, of the limiting plate 4, the side guard plates 2 are provided with a first baffle plate 5 and a second baffle plate, the first baffle plate 5 is arranged at one end, far away from the bottom guard plate 1, of each side guard plate 2, the first baffle plate 5 is used for limiting the battery module to move in the direction far away from the bottom guard plate 1, the second baffle plates are arranged on two vertical side edges of the side guard plates 2, the second baffle plates (not marked in the drawing) are used for limiting the battery module to move in the extending direction of the limiting plate 4, the preferred second baffle plate is arranged in the center of the vertical edge of the side guard plates 2 to achieve the effect that the battery module is uniformly stressed state and better and the fixed effect, in some embodiments of the disclosure, the side guard plates 2 can be directly connected with the bottom guard plate 1 or connected with the limiting plate 4 from the side by bolts, specifically, and the limiting plate can be selected and specifically, and the limiting plate 2 is connected with the limiting plate by the side guard plates in a fixed manner of the bolt, and the limiting plate 4, and the limiting plate is connected with the limiting plate 2; when the side protection plates 2 are connected with the bottom protection plate 1, a certain distance is reserved between the limiting plate 4 and the edge of the bottom protection plate 1, the side protection plates 2 are connected with the bottom protection plate 1 through screws, and the bottom protection plate 1, the two side protection plates 2, the first baffle 5, the second baffle and the limiting plate 3 on the side protection plates jointly form an accommodating space for accommodating a battery module through the two modes so as to achieve the effect of reducing the number of screws and the number of components;

in a preferred embodiment, the cooling plate 3 is arranged on the surface of the bottom protection plate 1, the limiting plate 4 forms a positioning space on the cooling plate 3 to meet the cooling requirement of the battery module, and the preferred cooling plate 3 can be a cold liquid cooling plate or a pipe pressure type water cooling plate, a friction welding type water cooling plate, or the like; in order to realize better cooling and the effect of fixing the battery module, the partial surface of the cooling plate 3 in the positioning space can be selected and used by heat conduction structure glue, so that on one hand, the battery module can be fixed on the other hand by better heat dissipation.

In a preferred embodiment of the present disclosure, in order to better protect and fix the battery module, the two sides of the cooling plate 3 where the limiting plate 4 is disposed are provided with the mounting portions 31, the side guard plate 2 is connected to the mounting portions 31, the mounting portions 31 and the cooling plate 3 are integrally formed and coplanar, the preferred mounting portions 31 may be strip-shaped whole plates disposed along the entire length of the edge of the side guard plate 2, or single plates uniformly distributed on the edge of the side guard plate 2, the single plates or the two ends of the whole plates are provided with bolt holes, and the side guard plate 2 is bolted to the mounting plates 31.

In some original embodiments, in order to make the battery module side and limiting plate 4 and side guard plate 2 more laminate and reduce the gap between the structure and realize better fixed effect, the one end that side guard plate 2 is connected with mounting panel 31 is provided with the opening, limiting plate 4 sets up in the opening, and side guard plate 2 and limiting plate 4 coplane are laminated with the side that satisfies the battery module and limiting plate 4 and side guard plate 2 form jointly, for better protection cooling plate 3, end guard plate 1 sets up on the bottom surface that installation department 31 and cooling plate 3 formed jointly, end guard plate 1 passes through the bolt with the side guard plate 2 with the installation department 31 and is connected.

In some embodiments of the present disclosure, in order to simplify the installation steps, the number of the first baffles 5 of the present disclosure is two, the two first baffles 5 are respectively disposed at two ends of the side guard plates 2 opposite to each other, and are attached to the top end of the battery module to satisfy a better fixing effect, one end surface of the first baffle 3 and the side surface of the side guard plate 2 facing away from the positioning space are coplanar, so that the outer shape of the whole fixing structure is smooth and convenient to install in the vehicle, the other end opposite to the side guard plate 2 is exposed, and the exposed portion is suitable for being capable of fixing the battery module so as to avoid completely covering the heat dissipation problem on the top end of the battery module.

It is noted that, in this document, relational terms such as "first barrier" and "second barrier" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The previous description is only for the purpose of describing particular embodiments of the present disclosure, so as to enable those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery module fixing structure is characterized by comprising a bottom guard plate and a side guard plate, wherein,

limiting plates are respectively arranged on two opposite sides of the bottom protection plate, and a positioning space for accommodating the battery module is formed between the limiting plates;

2. The battery module fixing structure according to claim 1, wherein the cooling plate is disposed on the surface of the bottom protection plate, the limiting plates are disposed on two opposite sides of the cooling plate, and a heat conducting adhesive is disposed on the surface of the cooling plate in the positioning space.

3. The battery module fixing structure according to claim 2, wherein the cooling plate is provided with an installation part, the installation part is located on the same side as the limiting plate, the installation part is integrally formed and coplanar with the cooling plate, and the side guard plate is connected to the installation part.

4. The battery module fixing structure according to claim 3, wherein a notch is formed in one end of the side guard plate connected with the mounting portion, the limiting plate is arranged in the notch, and the side guard plate and the limiting plate are coplanar.

5. The battery module fixing structure according to claim 3, wherein the bottom guard plate is disposed on a bottom surface formed by the mounting portion and the cooling plate, and the bottom guard plate and the mounting portion are connected to the side guard plate by bolts.

6. The battery module fixing structure according to claim 1, wherein a first baffle and a second baffle are arranged on the side guard plate, the first baffle is arranged at one end, far away from the bottom guard plate, of the side guard plate, the first baffle is used for limiting the battery module to move in the direction far away from the bottom guard plate, the second baffle is arranged on two vertical side edges of the side guard plate, and the second baffle is used for limiting the battery module to move in the extending direction of the limiting plate.

7. The battery module fixing structure according to claim 6, wherein one end surface of the first shutter is coplanar with a side surface of the side guard plate facing away from the positioning space, and the opposite end surface is exposed from the side guard plate.

8. The battery module fixing structure according to claim 6, wherein the second stoppers are provided at centers of both side edges of the side guard plates.

9. The battery module fixing structure according to claim 1, wherein the distance between the two stopper plates is equal to the width of the battery module.

10. A battery pack, comprising the battery module fixing structure according to any one of claims 1 to 9.