CN213636138U

CN213636138U - Battery box frame and battery box

Info

Publication number: CN213636138U
Application number: CN202022485357.7U
Authority: CN
Inventors: 刘斌
Original assignee: Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd
Current assignee: Evergrande Hengchi New Energy Automobile Research Institute Shanghai Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-06
Anticipated expiration: 2030-10-30

Abstract

The application discloses battery box frame and battery box belongs to the design and manufacture field of battery box. The battery box frame comprises a main body frame, the main body frame is enclosed to form an installation space of a battery module, a liquid cooling pipe joint is arranged on the main body frame and is integrally formed with the main body frame, the liquid cooling pipe joint is a bending pipe joint, the liquid cooling pipe joint is located at a first interface outside the main body frame and is used for being communicated with an external liquid cooling source, and the liquid cooling pipe joint is located at a second interface inside the main body frame and faces towards the surface of a liquid cooling plate of the battery module and is communicated with the liquid cooling plate. The problem that the liquid cooling system interface part of current battery box designs unreasonablely to lead to the assembly more difficult is solved in this application.

Description

Battery box frame and battery box

Technical Field

The application relates to the field of design and manufacture of automobile battery boxes, in particular to a battery box frame and a battery box.

Background

In the power battery system, the battery box is an important component and is the basis of the structural strength, rigidity, IP protection and the like of the whole battery system. Meanwhile, the heat dissipation of the battery directly affects the safety of the power battery system, so that the liquid cooling system is an indispensable component in the conventional power battery box.

At present, in order to reduce the weight of a system, most of battery boxes are made of aluminum alloy materials, namely, a plurality of aluminum profile frame beams are welded and formed, and interfaces required for connecting with the outside, such as a high-voltage interface, a low-voltage interface, a liquid cooling system interface and the like, are processed on an aluminum profile frame. In the prior art, the interface aiming at the liquid cooling system basically adopts the mounting hole for processing the liquid outlet cold joint on the battery box frame, and then the liquid cooling pipe is assembled when the battery system is assembled, so that the assembling convenience is poor, and the problems of sealing and the like are easily caused.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the application is that the assembly is difficult due to the fact that an interface part of a liquid cooling system of the existing battery box is unreasonable in design; therefore, the application provides a conveniently assemble battery box of liquid cooling system pipeline.

In view of the above technical problems, the present application provides the following technical solutions:

the utility model provides a battery box frame, includes main body frame, main body frame encloses into the installation space of battery module, the last liquid cooling coupling that is equipped with of main body frame, liquid cooling coupling with main body frame integrated into one piece, liquid cooling coupling is the coupling of bending, liquid cooling coupling is located the first interface in the main body frame outside is used for communicating with outside liquid cooling source, liquid cooling coupling is located the inboard second interface orientation of main body frame the face of the liquid cooling board of battery module and with liquid cooling board intercommunication.

In some embodiments of the present application, the main frame is provided with an electrical connector mounting opening, the main frame is formed by welding a plurality of branch beams with different extending directions, wherein the liquid cooling pipe joint and the electrical connector mounting opening are arranged on the same branch beam.

In some embodiments of the present application, the main frame further includes an anti-collision beam disposed on an outer side of the main frame, the anti-collision beam is disposed on the branch beam, and the liquid-cooled pipe joint and the electric connector mounting port are disposed on the same side of the branch beam.

In some embodiments of this application, set up two at least on the branch roof beam at interval anticollision roof beam, the anticollision roof beam shaping is the fin shape plate body and welds in on the branch roof beam.

In some embodiments of the present application, the liquid cooling pipe joint and the electric connector mounting port are provided with a plurality of reinforcing ribs formed on the branch beam.

In some embodiments of the present application, the battery box frame further includes a bottom plate and an upper cover plate; the main body frame is welded with the bottom plate, and the main body frame is detachably connected with the upper cover plate.

In some embodiments of the present application, a sealing groove for installing a sealing strip is formed on an upper surface of the main body frame, and the upper cover plate is sealed with the main body frame through the sealing strip.

In some embodiments of the present application, the battery box frame further includes a plurality of partition beams located inside the main body frame, and the partition beams divide the battery installation space into a plurality of installation areas.

The application discloses battery box simultaneously, it includes above-mentioned battery box frame and is located battery module and liquid cold plate in the battery box frame, wherein, liquid cold plate is located the battery module downside is used for the cooling the battery module.

In some embodiments of the present application, the second interface of the liquid cooling pipe joint communicates with the liquid cooling plate through a straight pipe joint.

Compared with the prior art, the technical scheme of the application has the following technical effects:

according to the battery box frame and the battery box, the liquid cooling pipe joint in the battery box frame is integrally formed on the main body frame, so that the forming process is simple, and the processing and manufacturing cost is low; meanwhile, the liquid cooling pipe joint is formed into a bent pipe joint, the second interface positioned on the inner side of the main body frame faces the surface of the liquid cooling plate, the liquid cooling pipe joint can be connected with the liquid cooling plate through a straight pipe joint, assembly is convenient, and the occupied space is small.

Drawings

The objects and advantages of this application will be appreciated by the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic structural view of one embodiment of a battery box frame of the present application;

FIG. 2 is an outside structural view of one embodiment of a framed breakout beam with fluid-cooled joints and electrical connector mounting openings according to the present application;

FIG. 3 is an inside structural view of one embodiment of a framed breakout beam with fluid-cooled joints and electrical connector mounting openings according to the present application;

fig. 4 is a sectional view of the battery case frame of the present application at a liquid-cooled pipe joint portion.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all 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 application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

Fig. 1 shows an embodiment of a battery box frame of the present application, which includes a main body frame 100, a bottom plate 200, and an upper cover plate (not shown in the drawings); the main body frame 100 is welded to the bottom plate 200, and the main body frame 100 is detachably connected to the upper cover plate. The main body frame 100 encloses an installation space of the battery module, and the battery module and a liquid cooling plate for cooling the battery module are located in the installation space.

Wherein, be equipped with liquid cooling pipe joint 101 on main body frame 100, liquid cooling pipe joint 101 with main body frame 100 integrated into one piece, as shown in fig. 4, liquid cooling pipe joint 101 is the union coupling of bending, liquid cooling pipe joint 101 is located the first interface 1011 in main body frame 100 outside is used for the liquid cooling source intercommunication with the outside, liquid cooling pipe joint 101 is located the inboard second interface 1012 orientation of main body frame 100 the face of the liquid cooling plate of battery module and with liquid cooling plate intercommunication.

In the battery box frame, the liquid cooling pipe joint 101 is integrally formed on the main body frame 100, and is integrally cast, so that the forming process is simple, and the processing and manufacturing cost is low; meanwhile, the liquid cooling pipe joint 101 is formed into a bent pipe joint, the second interface 1012 positioned on the inner side of the main body frame 100 faces the surface of the liquid cooling plate, and the liquid cooling pipe joint 101 can be connected with the liquid cooling plate through a straight pipe joint, so that the liquid cooling pipe joint is convenient to assemble and occupies a small space.

Specifically, the fluid coupling 101 is bent at approximately 90 degrees to bring the second interface side of the fluid coupling closer to the main frame 100, thereby occupying less space. The liquid cooling pipe joints 101 are two, and include liquid inlet liquid cooling pipe joint 101 and liquid return liquid cooling pipe joint 101.

Specifically, as shown in fig. 2, the main body frame 100 is provided with electrical connector mounting openings 102 for mounting a high-voltage connector and a low-voltage connector, and specifically, the main body frame 100 is provided with 5 electrical connector mounting openings 102 for mounting a high-voltage connector and 1 electrical connector mounting opening 102 for mounting a low-voltage connector.

Specifically, the main body frame 100 is integrally molded as a polygonal frame; more specifically, it may be a quadrangle or a hexagon; the main body frame 100 is formed by welding a plurality of branch beams 100a having different extending directions, wherein, in order to facilitate the arrangement of the electric devices and the cooling components in the main body frame 100, the liquid cooling pipe joint 101 and the electric connector mounting port 102 are disposed on the same branch beam 100 a. In this way, the components of the liquid cooling system and the electrical components connected to the electrical connector are located on the same side of the main frame 100, which facilitates assembly by the worker.

Specifically, in order to avoid the collision of the electrical connector when the battery box frame is collided, an anti-collision beam 103 is further disposed on the outer side of the main body frame 100, the anti-collision beam 103 is located on the same branch beam 100a as the liquid-cooled pipe joint 101 and the electrical connector mounting port 102, and the electrical connector can be protected from collision by the anti-collision beam 103.

Specifically, as shown in fig. 2 and 3, at least two of the impact beams 103 are arranged on the branch beam 100a at intervals, and the impact beams 103 are formed into fin-shaped plates and welded to the branch beam 100 a. More specifically, the electrical connector mounting opening 102 is disposed between two adjacent anti-collision beams 103, so that when the battery box frame is collided, the anti-collision beams 103 are firstly subjected to external force, and the electrical connector disposed between the anti-collision beams 103 is not easily collided.

More specifically, the fin-shaped plate body is perpendicular to the outer surface of the branch beam 100 a; the length of the side surface connected with the branch beam 100a is smaller than the length of the side surface spaced from the branch beam 100 a. The fin-shaped plate body structure can make the area of the collision-proof surface of the collision-proof beam 103 larger.

Since the fluid-cooled pipe joint 101 and the electrical connector mounting port 102 are disposed on the same branch beam 100a, in order to ensure the strength of the branch beam 100a, a plurality of ribs 100a1 are formed on the branch beam 100a, and specifically, the ribs 100a1 may be arranged in the transverse direction or the longitudinal direction.

The battery box frame further comprises a plurality of partition beams 100b positioned on the inner side of the main body frame 100, and the partition beams 100b partition the battery installation space into a plurality of installation areas. Installation area includes battery module installing zone and electric installation district, liquid cooling subassembly installing zone etc, wherein, the battery module installing zone shaping is the rectangle installation space of rule, and it can be convenient for comparatively regular arranging of battery module, electric installation district then arranges in being close the installation liquid cooling coupling 101 and the branch roof beam 100a side of electric connector installing port 102.

Specifically, in order to improve the sealing performance between the main body frame 100 and the upper cover plate, as shown in fig. 3, a sealing groove 100c for installing a sealing strip is formed on the upper surface of the main body frame 100, and the upper cover plate and the main body frame 100 are sealed by the sealing strip.

This application provides a concrete implementation mode of battery box simultaneously, it includes battery box frame 10 and be located battery module (not shown in the figure) and liquid cold plate (not shown in the figure) in the battery box frame, wherein, liquid cold plate is located battery module downside is used for the cooling battery module, the face of liquid cold plate with the bottom plate is parallel.

The battery box adopts the battery box frame structure, so that the forming process is simple, and the processing and manufacturing cost is low; meanwhile, the liquid cooling pipe joint 101 is formed into a bent pipe joint, the second interface 1012 of the liquid cooling pipe joint 101 is communicated with the liquid cooling plate through a straight pipe joint, and the liquid cooling assembly can occupy a small space of the battery box and is convenient to assemble.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention are intended to be covered by the present application.

Claims

1. A battery box frame comprises a main body frame, the main body frame encloses an installation space of a battery module, and is characterized in that,

the battery module is characterized in that a liquid cooling pipe joint is arranged on the main body frame and integrally formed with the main body frame, the liquid cooling pipe joint is a bent pipe joint, a first interface on the outer side of the main body frame is used for being communicated with an external liquid cooling source, and a second interface on the inner side of the main body frame faces towards the surface of a liquid cooling plate of the battery module and is communicated with the liquid cooling plate.

2. A battery box frame as claimed in claim 1, wherein:

the main body frame is provided with an electric connector mounting port and is formed by welding a plurality of branch beams with different extension directions, wherein the liquid cooling pipe joint and the electric connector mounting port are arranged on the same branch beam.

3. A battery box frame as claimed in claim 2, wherein:

the outer side of the main body frame is further provided with an anti-collision beam, and the anti-collision beam, the liquid cooling pipe joint and the electric connector mounting port are located on the same branch beam.

4. A battery box frame as claimed in claim 3, wherein:

the anti-collision device comprises a supporting beam, at least two anti-collision beams and a plurality of anti-collision units, wherein the supporting beam is arranged on the supporting beam at intervals, and the anti-collision beams are formed into fin-shaped plate bodies and welded on the supporting beam.

5. A battery box frame as claimed in claim 2, wherein:

and a plurality of reinforcing ribs are formed on the branch beam and provided with the liquid cooling pipe joint and the electric connector mounting port.

6. A battery box frame as claimed in claim 1, wherein:

the battery box frame also comprises a bottom plate and an upper cover plate; the main body frame is welded with the bottom plate, and the main body frame is detachably connected with the upper cover plate.

7. The battery box frame of claim 6, wherein:

the upper surface shaping of main body frame has the seal groove that is used for installing the sealing strip, the upper cover plate with pass through between the main body frame the sealing strip is sealed.

8. A battery box frame as claimed in claim 1, wherein:

the battery box frame further comprises a plurality of partition beams positioned on the inner side of the main body frame, and the partition beams divide the battery installation space into a plurality of installation areas.

9. A battery box comprising the battery box frame of claims 1-8, and a battery module and a liquid cooling plate located in the battery box frame, wherein the liquid cooling plate is located at the lower side of the battery module and used for cooling the battery module.

10. A battery box according to claim 9, characterized in that:

the second interface of the liquid cooling pipe joint is communicated with the liquid cooling plate through a straight pipe joint.