Combined battery PACK end plate and battery PACK

Abstract

The utility model discloses a combined battery PACK end plate. The combined battery PACK end plate comprises an end plate main body and a universal profile, mounting hole positions are formed in the two sides of the end plate main body; the universal profile is provided with at least one clamping groove used for clamping a steel belt, a step face is formed at the bottom of the universal profile, the universal profile is provided with a mounting hole position corresponding to the end plate body, the universal profile is provided with a pair of parts connected to the two sides of the end plate body respectively, and the step face of the universal profile is clamped to the two sides of the end plate body and fixed through screws. In addition, the utility model also discloses a battery PACK provided with the combined type battery PACK end plate. According to the PACK end plate disclosed by the utility model, the general section bar and the end plate main body are combined, so that square battery cells with different sizes can be matched only by changing the lengths of the end plate main body and the general section bar, and the whole shape structure of the end plate does not need to be changed by opening a mold for many times; and various mounting holes and hanging holes are reserved on the PACK end plate, so that the PACK end plate can be conveniently mounted and used in various products.

Description

Technical Field

[0001] The utility model relates to a lithium battery pack, in particular to a combined battery pack end plate and a battery pack. Background Art

[0002] A battery pack is a combination of multiple battery cells connected in series and parallel, packaged, encapsulated, and assembled to customer specifications. Pack end plates secure the battery cells during assembly, protecting them and optimizing the battery pack. They also provide additional protection against expansion, vibration, or impact. The pack end plates are then used to install the battery pack into electrical products.

[0003] Existing pack end plates have the following drawbacks: 1. Conventional pack end plates (die-cast or aluminum extrusions) are typically designed for a specific square battery cell and are not universally applicable. For example, the aluminum extrusions used on both sides, when tightened, require multiple mold changes to adapt the overall shape and structure of the end plates to accommodate various cell sizes, which is time-consuming and labor-intensive. 2. Battery packs are used in a variety of electrical products, limiting their installation options and making them inflexible. Summary of the Invention

[0004] In response to the above-mentioned existing technical problems, the present invention provides a combined battery pack end plate and a battery pack. The end plate is easy to adapt to various square battery cells and has a simple and flexible installation method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a combined battery PACK end plate, comprising an end plate body and a universal profile; mounting holes are provided on both sides of the end plate body; the universal profile is provided with at least one slot for clamping a steel strip, a step surface is formed on the bottom of the universal profile, and mounting holes corresponding to the end plate body are provided on the universal profile. The universal profile is provided with a pair of stepped surfaces respectively connected to both sides of the end plate body, and the stepped surfaces of the universal profile are clamped on both sides of the end plate body and fixed by screws.

[0006] Furthermore, the utility model has a reinforcing rib welded on the front side of the end plate body, and a mounting hole is reserved at the bottom of the reinforcing rib.

[0007] The utility model further has a hanging hole connecting plate welded to the upper portion of the end plate body, and the hanging hole connecting plate is provided with hanging holes.

[0008] Furthermore, the utility model further provides a battery PACK, including any one combination formula battery PACK end plate, electric core and steel band, the electric core is placed in order and is arranged into electric core module, combination formula battery PACK end plate places in electric core module both sides, through the restraint tool fixture clamping, the steel band is clamped in the card slot of general section, tightens PACK end plate and electric core module with steel band.

[0009] The utility model further, the end plate main part is placed with epoxy board between electric core.

[0010] The utility model further, the electric core between is pasted together with EVA double face back glue.

[0011] The beneficial effect of adopting above technical scheme is: the utility model PACK end plate adopts the form of two parts combination of general section and end plate main part, for different size square electric core, this scheme only needs to change the size of end plate main part and general section, adapts electric core long, wide, high size can, need not multiple open mould and change the overall shape structure of end plate many times, general section is provided with the card slot of steel band, guarantees that steel band is installed smoothly and is not easy to fall off, and general section can set up different form card slot, when corresponding different steel band or other installation forms, only need to replace corresponding general section can, in addition, PACK end plate is reserved with various installation holes and hanging hole, and installation is simple, and it is convenient to install and use in various products. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is assembly diagram of the utility model PACK end plate;

[0013] Figure 2 It is structure diagram of the utility model PACK end plate;

[0014] Figure 3 It is one embodiment of the utility model battery PACK;

[0015] Figure 4 It is another embodiment of the utility model battery PACK;

[0016] In the drawing: 1, hanging hole connecting plate, 2, hanging hole, 3, screw, 4, end plate main body, 5, card slot, 6, general section, 8, reinforcing rib, 9, step surface, 10, installation hole, 11, electric core, 12, steel band, 13, epoxy board, 14, EVA double face back glue. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0019] An embodiment of the present invention: Figure 1 and Figure 2 As shown, a combined battery PACK end plate includes an end plate body 4 and a universal profile 6; mounting holes are set on both sides of the end plate body 4; the universal profile 6 is provided with at least one slot 5 for clamping a steel strip 12, a step surface 9 is formed on the bottom of the universal profile 6, and there are mounting holes on the universal profile 6 corresponding to the end plate body 4. The universal profile 6 is provided with a pair of stepped surfaces 9 respectively connected to both sides of the end plate body 4, and the stepped surfaces 9 of the universal profile 6 are clamped on both sides of the end plate body 4 and fixed by screws 3. The PACK end plate of the utility model adopts the combination of the universal profile 6 and the end plate body 4. For square battery cells 11 of different sizes, such as Figure 3 and Figure 4 As shown, this solution only requires changing the length of the end plate body 4 and the universal profile 6, and the assembly method is also consistent. During assembly, the combined battery PACK end plates are placed on both sides of the battery module and tightened by tooling. There is no need to open the mold multiple times to change the overall shape and structure of the end plate; the universal profile 6 is provided with a slot 5 for the steel strip 12 to ensure that the steel strip is installed smoothly and is not easy to fall off, and different forms of slots 5 can be provided on the universal profile 6. When corresponding to different steel strips or other installation forms, only the corresponding universal profile 6 needs to be replaced. The bottom of the universal profile 6 is formed with a step surface that can be more tightly clamped on the end plate body 4, making the combination more firm and reliable.

[0020] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 2 As shown, the front of the end plate body 4 is welded with a reinforcing rib 8, and the bottom of the reinforcing rib 8 is reserved with a mounting hole 10. The reinforcing rib 8 is used to increase the structural strength of the end plate body 4. In addition, various mounting holes 10 are reserved on the PACK end plate to facilitate the installation and use of the utility model in various products.

[0021] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 2As shown, a hanging hole connecting plate 1 is welded on the upper part of the end plate body 4, and a hanging hole 2 is provided on the hanging hole connecting plate 1. It can be moved to the next workstation by using a lifting hook to realize a streamlined operation process.

[0022] like Figure 3 As shown, the present invention also has a battery pack, comprising any of the above-mentioned combined battery pack end plates, battery cells 11 and steel strips 12; the battery cells 11 are arranged in sequence to form a battery module, the combined battery pack end plates are placed on both sides of the battery module, clamped by a tightening fixture, and the steel strips 12 are clamped in the slots 5 of the universal profile 6 to fasten the pack end plates and the battery module. The example in this figure is a battery cell 11 with a shorter length. If the battery cell 11 is longer, such as Figure 4 As shown, it is necessary to adapt the end plate body 4 and the universal profile 6 of corresponding length, and other assembly methods are basically the same.

[0023] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 3 As shown, an epoxy plate 13 is placed between the end plate body 4 and the battery cell 11. The epoxy plate serves as an isolation layer to prevent short circuits between the battery cells, thereby improving the safety of the battery.

[0024] In other specific embodiments of the present invention, the rest are the same as the above embodiments, except that, Figure 4 As shown, when dealing with longer battery cells 11, the battery cells 11 can be glued together with EVA double-sided adhesive to ensure that the battery cells can be firmly combined together.

[0025] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the main technical solution of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A combined battery PACK end plate, characterized in that: Including end plate body and universal profile; Mounting holes are provided on both sides of the end plate body; The universal profile is provided with at least one slot for clamping the steel strip, a step surface is formed at the bottom of the universal profile, and there are mounting holes on the universal profile corresponding to the end plate body. The universal profile is provided with a pair of steps respectively connected to both sides of the end plate body, and the step surfaces of the universal profile are clamped on both sides of the end plate body and fixed by screws.

2. The combined battery PACK end plate according to claim 1, characterized in that: A reinforcing rib is welded on the front side of the end plate body, and a mounting hole is reserved at the bottom of the reinforcing rib.

3. The combined battery PACK end plate according to claim 1, characterized in that: A hanging hole connecting plate is welded to the upper portion of the end plate body, and the hanging hole connecting plate is provided with hanging holes.

4. A battery pack, characterized in that: It comprises a combined battery PACK end plate, battery cells and steel strip according to any one of claims 1 to 3; the battery cells are arranged in sequence to form a battery cell module, the combined battery PACK end plates are placed on both sides of the battery cell module, and are clamped by a tightening fixture, and the steel strip is clamped in the slot of the universal profile to fasten the PACK end plate and the battery cell module.

5. A battery pack according to claim 4, characterized in that: An epoxy plate is placed between the end plate body and the battery core.

6. A battery pack according to claim 4, characterized in that: The battery cells are glued together with EVA double-sided adhesive.

Images