CN219163600U - Battery cell integrated frame and battery pack thereof - Google Patents

Abstract

The utility model discloses a battery cell integrated frame and a battery pack thereof. The integrated frame comprises a bottom plate and side plates which are arranged on the side edges of the bottom plate and extend upwards; the bottom plate is provided with an electric core module limiting part for fixing or limiting the electric core module; and the outer side of the side plate is provided with a PCB mounting part and/or a battery cell output electrode busbar mounting part. According to the integrated frame, the integrated frame is simple in integral structure, a plurality of functional components can be connected and integrated on the integrated frame, the number of internal parts of a battery pack is effectively reduced, the manufacturing cost is low, the integration level is high, the integrated frame is convenient to install and disassemble, and the requirements of high flame retardance and high insulating performance inside the battery can be met.

Description

A battery cell integrated frame and battery pack thereof

technical field

The utility model relates to the technical field of batteries, in particular to an integrated battery core frame and a battery pack thereof.

Background technique

In existing new energy vehicles, a plurality of battery cells are generally formed into a whole through a frame, and the battery cells are connected in series or in parallel to form a battery. The frames are arranged in parallel inside. However, the existing frame is not highly integrated, the layout of other related components is unreasonable, the manufacturing cost is high, there are potential safety hazards, and it cannot meet the requirements of high flame retardancy and high insulation performance inside the battery.

Utility model content

The embodiment of the utility model provides a cell integrated frame and its battery to solve the problem that the existing frame is not highly integrated, the layout of related components is unreasonable, the manufacturing cost is high, and there are potential safety hazards, which cannot meet the requirements of high flame retardancy and high temperature inside the battery. Insulation performance requirements and other issues.

An embodiment of the utility model provides an integrated battery frame on the one hand, and the integrated frame includes a bottom plate and a side plate arranged on the side of the bottom plate and extending upward;

The bottom plate is provided with a cell module limiting part for fixing or limiting the cell module;

The outer side of the side plate is provided with a PCB board mounting portion and/or a cell output electrode bus bar mounting portion.

In some embodiments, the PCB board installation part or the cell output pole busbar installation part is provided with threaded holes or buckle structures.

In some embodiments, the threaded holes are disposed on the upper surface of the PCB mounting portion and/or the cell output pole bus bar mounting portion.

In some embodiments, the bottom plate is a square plate, the PCB board installation part is arranged on the front side board and the left and right side boards of the side boards, and the cell output pole bus bar installation part is arranged on on the front side panel.

In some embodiments, the side plate is further provided with a liquid-cooled tube mounting portion for connecting a liquid-cooled tube for fixing and cooling the electric core.

In some embodiments, the bottom plate is further provided with a vent hole, and the position of the vent hole corresponds to the position of the explosion-proof valve on each of the electric cores.

In some embodiments, first reinforcing ribs and/or second reinforcing ribs are provided on the side panels or between the bottom panel and the side panels, and the first reinforcing ribs are larger than the second reinforcing ribs.

In some embodiments, the integrated frame is an injection molded part.

In some embodiments, an adhesive layer is further provided between the integrated frame and the electric core, and the adhesive layer is formed by pouring.

An embodiment of another aspect of the present invention provides a battery pack, the battery pack includes a support frame, a plurality of cylindrical batteries are arranged in the support frame, and the support frame adopts the integration framework.

Compared with the prior art, the utility model has the following advantages:

The integrated frame provided by the embodiment of the utility model has a simple overall structure, and multiple functional components can be connected and integrated on it, which effectively reduces the number of internal parts of the battery pack, has low manufacturing cost, high integration, good safety performance, and is easy to install and disassemble. Meet the requirements of high flame retardancy and high insulation performance inside the battery.

Description of drawings

Fig. 1 is a schematic structural view of an integrated frame of an electric core provided by an embodiment of the present invention;

Notes on drawings:

1. Front side board PCB board installation part; 2. Left and right side board PCB board installation part; 3. Through hole; 4. Cell module limit part; 5. Vent hole; 6. Side board bending surface ; 7. The installation part of the battery output bus bar; 8. The first rib; 9. The second rib.

Detailed ways

In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can do similar promotions without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below .

Referring to FIG. 1 , the embodiment of the present invention discloses an integrated frame for electric cells, which is used for fixing and protecting electric cells or electric cell components.

As shown in FIG. 1 , the integrated frame includes a bottom plate and side plates arranged on the side of the bottom plate and extending upward, wherein the bottom plate may be in any polygonal shape.

Preferably, the bottom plate is square, such as a rectangle or a square, and the side plates are respectively arranged on four sides of the bottom plate, so as to form an integral structure of the integrated frame.

Further, the bottom plate is provided with a plurality of battery module limiting parts 4 for fixing or limiting the battery module. Specifically, the cell module limiting portion 4 may be a parallel plate or a protruding rib, or at least one frame arranged in an array, and the cell module limiting portion 4 is used for a plurality of The position and movement of the cell module composed of cells are restricted, and the height and thickness of the above-mentioned plates, protruding ribs or frames can be designed or adjusted as required.

Optionally, in order to limit or fix the above-mentioned electric cores, an upper cover is also provided on the integrated frame, and the upper cover is closed on the top of the integrated frame, and is threaded, glued or concave-convex fit, etc. Further, the inner space of the upper cover and the integrated frame can also be provided with an insulating layer as required to play the role of isolation and insulation. The structure of the upper cover is not limited, and it is preferable to adopt a structure similar to that of the integrated frame and the same manufacturing process, and the manufacturing process includes injection molding, welding or gluing.

And, continuing to refer to FIG. 1 , each of the side plates may be a straight plate, for example, according to FIG. 1 , the side plates on the front and rear sides are straight plates. Of course, it can also be a bent plate. In combination with the side plate bending surface 6 shown in FIG. 1 , the side plates on the left and right sides are bent plates, which are used to strengthen the strength of the side plate.

Preferably, the outer side of the side plate is provided with a PCB board installation part (1, 2) or a cell output pole busbar installation part to connect or fix the PCB board or output pole busbar, and the specific connection or setting method can be adopted Snap, glue, thread, etc. Through the above settings, the PCB board can be used to monitor indicators such as cell voltage and temperature.

To sum up, the battery integration frame disclosed in the above embodiment has a simple overall structure, and multiple functional components are connected and integrated on it, which effectively reduces the number of internal parts of the battery pack, has low manufacturing cost, high integration, and is easy to install and disassemble. Requirements for high flame retardancy and high insulation performance inside the battery.

In one or some embodiments, the PCB board installation part (1, 2) or the cell output electrode bus bar installation part is provided with a threaded hole or a buckle structure, so as to be connected by screw connection or buckle Fix the PCB board or busbar.

In some preferred embodiments, the threaded hole is provided on the upper surface of the PCB board installation part or the battery output pole busbar installation part, wherein the upper surface includes an inclined upper surface or a liquid level upper surface, And the PCB board or the busbar is also installed in the vertical direction.

Specifically, the left side board and the right side board in this embodiment are respectively provided with left and right side board PCB board mounting parts 2, of course, the PCB boards on it can also be connected in a symmetrical manner by snapping. Left and right panels.

For example, the PCB mounting parts 2 of the left and right side boards may be groove structures, the PCB board is provided with a protrusion structure, and the groove structure and the protrusion structure are connected together by snap-fitting. .

Referring to Fig. 1, the battery output pole busbar installation part 7 is arranged on the front side plate. The battery output pole busbar installation part 7 can be multiple, according to the number of battery output poles set up.

Wherein, each of the cell output electrode bus bars is connected in parallel and/or in series.

In some embodiments, the side plate is also provided with a liquid cooling tube installation part, for example, the liquid cooling tube installation part may be a through hole 3, and the through hole 3 is provided on the rear side plate of the side plate , used to connect the liquid cooling tube used to fix the cooling cell.

Preferably, the liquid cooling tube can enter the integrated frame through the through hole 3, for example, the through hole 3 is connected and fixed by a pipe joint to cool the battery cell.

In some embodiments, the bottom plate is also provided with a vent hole 5, the design of the vent hole 5 is conducive to the cooling and heat dissipation of the battery cells in the integrated frame, and the location of the vent hole 5 is consistent with that of each Corresponds to the position of the explosion-proof valve on the battery cell.

Specifically, the explosion-proof valve of the battery cell is generally a one-way valve, which is used to generate gas swelling when the battery cell is in use, and exhaust the battery cell to release pressure, thereby preventing the battery cell from exploding.

In one or some embodiments, a first reinforcing rib 8 and a second reinforcing rib 9 are provided on the side plate or between the bottom plate and the side plate. As shown in FIG. 1 , the first reinforcing rib The rib is larger than the second reinforcing rib.

In this embodiment, the strength of the side panels and the integrated frame as a whole is further enhanced by providing reinforcing ribs, especially the first reinforcing ribs 8 and the second reinforcing ribs 9 of different sizes.

Of course, in order to further improve the strength of the side plate or the bottom plate, transverse ribs can also be added on the side plate or the bottom plate, and the strength can also be improved by increasing the local thickness of the side plate or the bottom plate.

In one or some embodiments, the integrated frame is an injection molded part. At this time, the material of the integrated frame is plastic, and processing through injection molding process further reduces manufacturing complexity and cost. Moreover, the use of non-metallic materials such as plastics can further improve the performance of the integrated frame such as insulation and voltage resistance.

In some preferred embodiments, during the process of forming the battery pack using the integrated frame, an adhesive layer is further provided between the integrated frame and the battery cells, and the adhesive layer is formed by pouring. During the pouring process, The glue will fill the frame to wrap the cell, stably fix the cell, improve its insulation and high flame retardancy.

An embodiment of another aspect of the present invention provides a battery pack, the battery pack includes the above-mentioned supporting frame, and a plurality of cylindrical batteries are arranged in the supporting frame, and the supporting frame preferably adopts a battery according to any of the above-mentioned An integration framework in one embodiment.

In summary, the integrated frame and its battery disclosed in the utility model have a high degree of integration, and can at least realize functions such as cell positioning, output pole fixing, PCB board fixing, liquid pipe joint fixing, and glue blocking during glue injection.

And, at least the following beneficial effects can be obtained:

The integrated frame provided by the utility model can effectively reduce the number of internal parts of the battery pack, etc., has low manufacturing cost, is easy to install and disassemble, and uses non-metallic materials, has good insulation and pressure resistance performance, and can meet the requirements of high flame retardancy and high insulation performance inside the battery requirements.

It should be noted that although the utility model is disclosed as above with preferred embodiments, it is not used to limit the utility model, and any person skilled in the art can make possible modifications without departing from the spirit and scope of the utility model Therefore, the scope of protection of the utility model should be defined by the claims of the utility model.

Claims (10)

1. A cell integrated frame, characterized in that, the integrated frame includes a bottom plate and a side plate arranged on the side of the bottom plate and extending upward; The bottom plate is provided with a cell module limiting part for fixing or limiting the cell module; The outer side of the side plate is provided with a PCB board mounting portion and/or a cell output electrode bus bar mounting portion. 2 . The integrated frame according to claim 1 , characterized in that, the mounting portion of the PCB board or the mounting portion of the cell output pole busbar is provided with a threaded hole or a buckle structure. 3 . 3 . The integrated frame according to claim 2 , wherein the threaded holes are arranged on the upper surface of the PCB mounting portion and/or the cell output pole busbar mounting portion. 4 . 4. The integrated frame according to claim 1, wherein the bottom plate is a square plate, and the PCB mounting part is arranged on the front side plate and the left and right side plates of the side plates, the The cell output pole bus bar installation part is arranged on the front side plate. 5 . The integrated frame according to claim 1 , wherein the side plate is further provided with a liquid-cooled tube mounting portion for connecting a liquid-cooled tube for fixing and cooling the battery cells. 6 . 6 . The integrated frame according to claim 1 , wherein the bottom plate is further provided with vent holes, and the positions of the vent holes correspond to the positions of the explosion-proof valves on the electric cores. 6 . 7. The integrated frame according to any one of claims 1-6, characterized in that, first reinforcing ribs and/or second reinforcing ribs are arranged on the side panels or between the bottom panel and the side panels Ribs, the first ribs are larger than the second ribs. 8. The integrated frame according to any one of claims 1-6, characterized in that the integrated frame is an injection molded part. 9. The integrated frame according to any one of claims 1-6, wherein an adhesive layer is further provided between the integrated frame and the electric core, and the adhesive layer is formed by pouring. 10. A battery pack, the battery pack comprises a support frame, and a plurality of cylindrical cells are arranged in the support frame, characterized in that, the support frame adopts the integration framework.

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