CN206116478U - Battery box - Google Patents

Abstract

The utility model relates to a battery box, battery box including the box that is used for installing the battery module with set up at the box front side convex bulge that is used for installing battery management system forward, about having in the bulge, extends the battery box body internally mounted battery management system mount pad that sets up, being provided with on the mount pad and being used for the connecting portion be connected with battery box, set up the battery management system mount pad in the bulge, original battery module can set up the inside front side department at the box to the compactedness of this guard box body structure makes the volume of box less, reduces manufacturing cost.

Description

a battery box

technical field

The utility model relates to a battery box.

Background technique

At present, the capacity of new energy sources such as wind power and photovoltaics to be connected to the power grid is increasing. The popularization and application of electric vehicle charging and swapping facilities has brought hidden dangers to the safe operation of the power grid. The introduction of energy storage systems is exactly to solve the problem of new energy power generation, electric One of the essential measures for the randomness and volatility of vehicle charging and swapping, the battery box, as one of the carriers of large-scale energy storage, is a key factor in the development of large-scale energy storage. The energy storage battery in the battery box has some disadvantages such as less stored energy, short life, poor safety in use, and difficulty in estimating battery power. Therefore, a safe and reliable battery box structure and a reliable battery management system are directly related to the battery in the box. SAFE USE. At present, the battery box is mainly composed of the box body and the upper cover for the battery module. The box body includes a box frame bent around and welded reinforcement beams on the front and rear side walls. This structure is not high in strength and heavy in weight. Moreover, the installation and maintenance of the battery management system is inconvenient.

In the authorized Chinese patent document CN205194751U, an energy storage battery box is disclosed, which includes a box body. The internal space through the top and bottom of the protruding part forms the management system installation space for installing the battery management system. One of the left and right side walls of the protruding part is provided with battery positive and negative terminals, and the other side wall There is a communication interface on it. The rear side of the protruding part of the box is provided with a column for placing the battery management system. The battery management system is directly installed on the column, and the power and other performance of the battery can be obtained through visual observation, and only need to remove the installation space of the management system. The front panel can better install and maintain the battery management system. However, since this energy storage battery box adopts two columns to be arranged inside the box body, the corresponding space for installing the battery module is arranged on the rear side of the facade where the columns are located, resulting in a large volume of the overall battery box and an uneven structure. Compactness increases manufacturing cost.

Contents of the invention

The purpose of the utility model is to provide a battery box to solve the problem of the battery box in the prior art that the overall volume of the box structure becomes larger due to the unreasonable layout of the installation structure of the battery management system.

In order to achieve the above object, the technical scheme of the battery box of the present utility model is:

A battery box, comprising a box body for installing a battery module and a protruding portion protruding forward on the front side of the box body for installing a battery management system, the inside of the battery box body is installed in the protruding portion A battery management system installation base extending up and down, and a connection part for connecting with the battery box is arranged on the installation base.

The battery box includes a front fixed beam that is arranged on the inner front side of the box and extends left and right. The connecting portion includes a first folded edge that is connected to the upper end of the battery management system mounting base and extends and bends backward. The first folded edge Be fixed on the upper side or the lower side of the front fixed beam.

The battery box also includes a front lock slot arranged on the front side of the bottom of the box body, and a lock hole is arranged on the front lock slot, and the connecting part also includes a second fold that is connected to the lower end of the battery management system mounting seat and extends backwards. edge, and the second folded edge is fixedly connected to the front lock groove by floating bolts.

The battery management system mounting seat is a U-shaped structure with an opening facing the rear, where the bottom edge of the "U" forms the battery management system mounting plate, and the two vertical edges of the "U" form the first folded edge and the second folded edge respectively , the first folded edge is fixed on the upper side of the front fixed beam, and the second folded edge is fixed on the upper side of the front lock groove.

The battery box also includes a bead that is arranged on the top of the box and extends forward and backward for press-fitting a battery module composed of several battery modules. There is an air duct formed by separating two adjacent battery modules under the bead. The battery management system mounting seat is arranged between two adjacent beading bars, and the dimension in the left-right direction is not greater than the distance between two adjacent beading bars.

The battery box also includes reinforcing ribs arranged on the rear side wall of the box body.

The reinforcing rib is a convex U-shaped structure with bent sides, and the reinforcing rib is provided with lightening holes.

There are three reinforcing ribs arranged in a "ten" shape.

The box body includes a left side plate and a right side plate, and the front ends of the left side plate and the right side plate both have outwardly folded installation ears for installing the battery box.

The beneficial effects of the utility model are:

Compared with the prior art, the battery box structure involved in the utility model uses the battery management system mounting seat provided on the front side inside the box and extending up and down inside the protruding part, so that the battery management system mounting seat is placed in the protruding part It is provided that the original battery module can be arranged at the inner front side of the box, so as to ensure the compactness of the box structure, make the volume of the box smaller, and reduce the manufacturing cost.

Further, a front fixing beam extending left and right is arranged on the front side inside the box body, and the connecting part is set to include a first folded edge bent and extended backward from the upper end of the battery management system mounting seat, and the folded edge is directly fixed The front fixed beam makes the installation of the battery management system mounting seat more convenient and easy to disassemble. The battery module can be inserted directly from the bottom of the front fixed beam without affecting the volume of the box.

Further, the connecting part is set to include a second fold extending and bending backward from the lower end of the battery management system mounting base, and a front lock slot is provided on the base of the box so that the battery management system mounting base can be placed on the front lock slot. It is fixed without affecting the fixed installation of the battery module, which ensures the stability of the battery management system mounting seat.

Furthermore, a battery management system mounting seat is provided between two adjacent beading bars, and the left and right dimensions of the battery management system mounting seat do not exceed the distance between two adjacent beading bars, which can ensure good ventilation and heat dissipation at the front and rear of the box.

Further, reinforcing ribs are provided on the rear side wall of the battery box structure to ensure the strength of the rear side of the battery box.

Furthermore, installation ears are respectively provided on the left and right sides of the box body, so that the battery box can be fixed at other installation positions, and the stability of the battery box can be ensured.

Description of drawings

Fig. 1 is a structural schematic diagram of a specific embodiment of a battery box of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the box body 1 in Fig. 1;

FIG. 3 is a schematic diagram of the assembly structure of the box body 1 and the battery management system mounting base 5 in FIG. 2 .

detailed description

Embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

The specific embodiment of the battery box of the present invention, as shown in Figures 1 to 3, includes a box structure and a battery module 3 installed inside the box structure and a battery management system. The box structure includes a box body 1, The upper cover 13 and the battery management system mounting seat 5, the box body 1 includes side walls around the front, rear, left, and right sides, and the middle part of the front side wall protrudes forward to form a protrusion 2, and the battery management system is arranged in the protrusion 2. The protruding part 2 includes a front frame 8 which is formed by turning the left and right front panels outwardly from the front side wall. The through internal space for installing the battery box management system, the rear side of the front frame 8 is connected with the inner cavity of the box body, and the front side of the box body 1 is welded with a front fixed beam 4 extending left and right, and the front side of the front fixed beam 4 is connected to the A battery management system mounting seat 5 extends up and down inside the protruding part 2, and there is a space for placing the battery module 3 under the fixed beam. The middle lock slot 12 extending forward and backward in the middle of the bottom of the box is used to fix the battery module 3, wherein the side lock slot 6 includes a front lock slot 61 arranged at the bottom of the box, and a lock hole is set on the front lock slot 61, and the battery management system is installed The seat 5 is a U-shaped structure with an opening facing the rear, wherein the bottom of the U-shaped groove constitutes the battery management system installation plate 51, and the two groove walls of the U-shaped groove respectively constitute the first folded edge 52 and the second folded edge 53 , the first folded edge 52 is fixed on the upper side of the fixed beam, and the second folded edge 53 is fixed on the upper side of the front lock groove 61. This design makes the battery module 3 and the battery management system mounting seat 5 The installation does not interfere with each other, and the battery module 3 can be inserted into the U-shaped groove of the battery management system mounting seat 5, further reducing the overall volume of the battery box.

The battery box also includes three reinforcing ribs 7 welded on the rear side wall of the box body. The reinforcing ribs are convex U-shaped with bent sides, and a weight-reducing hole is designed on the front side of the reinforcing ribs 7 to further reduce the weight of the battery box. The weight of the three reinforcing ribs is installed in a cross shape. The reinforcing rib 7 can maintain the weight of the battery box as much as possible and at the same time strengthen the strength of the rear side of the box body 1. On both sides of the reinforcing rib 7, a fan is installed. The air vents correspond to the left and right gaps between the mounting plate and the front frame, ensuring good ventilation and heat dissipation.

The front ends of the left and right side walls of the box body are turned outwards to have installation ears 10 for installing the battery box.

The battery module is composed of three battery modules, and a bead 11 is arranged on the top between two adjacent battery modules for fixing the battery module. A heat dissipation channel corresponding to the air inlet is left between adjacent battery modules. Make heat dissipation more sufficient.

In this embodiment, the mounting seat of the battery management system is U-shaped. In other implementations, the battery management system can be set as an L-shaped, and the battery management system is installed on the vertical side of the L-shape. The hanging edge and the front fixed beam or front lock The groove is fixedly connected. When it is connected with the front groove, the front fixed beam may not be provided; or the battery management system may be set as a straight board, and the battery management system mounting seat shall be fixed on the front side of the front fixed beam. Of course, it is also possible The battery management system mounting seat is directly fixed on the bottom plate of the box by welding, screwing, riveting and other conventional fixing methods to achieve the same fixing effect.

In other embodiments, the front fixing beam can be arranged in the protrusion and extend left and right. At this time, the mounting seat of the battery management system can be directly arranged on the fixing beam without a structure for avoiding the battery module.

In other implementations, there may be one or more reinforcing ribs, and multiple reinforcing ribs may be combined into other shapes such as triangles, etc., which force and support the box and strengthen the box.

Claims (9)

1. A battery box, comprising a box body for installing a battery module and a protruding portion protruding forward on the front side of the box body for installing a battery management system, characterized in that: the inside of the battery box body A battery management system installation seat extending up and down inside the protruding part is installed, and the installation seat is provided with a connection part for connecting with the battery box. 2. The battery box according to claim 1, characterized in that: the battery box includes a front fixing beam arranged on the inner front side of the box body and extending left and right, and the connecting part includes a beam connected to the upper end of the battery management system mounting seat. And extend backward the first folded edge, and the first folded edge is fixedly connected to the upper side or the lower side of the front fixed beam. 3. The battery box according to claim 1 or 2, characterized in that: the battery box also includes a front lock groove arranged on the front side of the bottom of the box body, a lock hole is arranged on the front lock groove, and the connecting part is also It includes a second folded edge that is connected to the lower end of the battery management system mounting seat and extends and bends backwards, and the second folded edge is fixedly connected with the front locking groove by floating bolts. 4. The battery box according to claim 3, wherein the battery management system mounting seat is a U-shaped structure with an opening facing the rear, wherein the bottom edge of the "U" shape constitutes the battery management system mounting plate, and "U The two vertical edges of the "shape form the first folded edge and the second folded edge respectively, the first folded edge is fixed on the upper side of the front fixed beam, and the second folded edge is fixed on the upper side of the front lock groove. 5. The battery box according to claim 1 or 2, characterized in that: the battery box also includes a bead that is arranged on the top of the box and extends forward and backward for press-fitting a battery module composed of several battery modules, There is an air duct formed by separating two adjacent battery modules under the bead, and the battery management system mounting seat is arranged between two adjacent bead, and the dimension in the left-right direction is not larger than that between two adjacent bead distance. 6. The battery box according to claim 1 or 2, characterized in that: the battery box further comprises reinforcing ribs arranged on the rear side wall of the box body. 7 . The battery box according to claim 6 , wherein the reinforcing rib is a convex U-shaped structure with bent sides, and the reinforcing rib is provided with a weight reducing hole. 8 . 8. The battery box according to claim 7, characterized in that there are three reinforcing ribs arranged in a "ten" shape. 9. The battery box according to claim 1 or 2, wherein the box body includes a left side panel and a right side panel, and the front ends of the left side panel and the right side panel both have outwardly folded Mounting ears for mounting the battery box.