Integrated electric vehicle battery pack

Abstract

The utility model relates to an integrated electric vehicle battery pack which comprises a plurality of single battery modules and baffles, each single battery module comprises two forming supports and a plurality of battery cells, and the battery cells are installed between the two forming supports. A plurality of battery cells of the single battery modules are connected in series and in parallel through a forming nickel strap on the forming bracket, and a plurality of single battery modules are mounted between the two baffles; the battery cells are fixed by using the forming bracket and the screw rod, so that the battery cells can be effectively protected and fixed, the battery cells can exert due performance in a severe environment, the battery cells are combined according to a corresponding mode in the assembling process to form the required battery module, the forming nickel sheet is used, the discharge power is met, and the battery module has the advantages of attractive appearance and strong usability; the integrated board is used for voltage collection, space is utilized more effectively, short circuit caused by breakage of a traditional collection wire harness is avoided, use is more convenient, simpler and more attractive, and safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power lithium-ion batteries, in particular to an integrated electric vehicle battery pack. Background Art

[0002] Lithium batteries are a kind of power source with extremely wide applications. Generally, according to the voltage and capacity requirements of the load, multiple single cells are combined in series and parallel. The voltage is increased through series connection, and the capacity is increased through parallel connection. The use of single cells gradually turns to modularization, and large-capacity battery packs are assembled and gradually applied to fields such as electric vehicles and energy storage.

[0003] Cylindrical batteries are designed and assembled in a modular manner by connecting the battery cores in series or parallel with a plastic bracket and a formed nickel strip. The operation is simple and time-consuming, but the firmness and aesthetics of the collection line have always been a major problem. Summary of the Utility Model

[0004] The problem solved by the utility model is to provide an integrated electric vehicle battery pack, which improves the safety in use, saves working hours, improves the convenience of use of the battery pack and ensures the safety of the integrated electric vehicle battery pack.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An integrated electric vehicle battery pack includes a plurality of single cell modules and baffles. Each single cell module includes two formed brackets and a plurality of battery cores. A plurality of battery cores are installed between the two formed brackets. The plurality of battery cores of the single cell module are connected in series and parallel through the formed nickel strips on the formed brackets. A plurality of single cell modules are installed between the two baffles;

[0007] An integrated board is installed on the side wall of the single cell module. A plurality of collection ports are opened on the integrated board. The collection ports are electrically connected to the formed nickel strips through collection lines.

[0008] Preferably, a screw rod is installed through between the two baffles and the plurality of single cell modules, and one end of the screw rod is fixedly connected to the baffle and the single cell module through a nut.

[0009] Preferably, a first cable slot is opened on the integrated board, and an integrated board PC cover is installed outside the integrated board.

[0010] Preferably, a heat sink is installed on the outside of one of the baffles. Two second cable slots are arranged on the heat sink. One of the second cable slots is in contact connection with the first cable slot through a cable, and the other second cable slot is connected to the BMS.

[0011] Preferably, a battery pack PC cover is installed outside several of the single battery modules.

[0012] The beneficial effects of the present utility model are as follows:

[0013] By using a formed bracket and a screw for fixation, the battery cells can be effectively protected and fixed, enabling them to perform their due functions in harsh environments. During the assembly process, the battery cells are combined in a corresponding manner to form the required battery module;

[0014] By using formed nickel sheets, the discharge power is satisfied, and it has the advantages of beauty and strong usability;

[0015] The integrated board for collecting voltage makes more effective use of space, avoids the occurrence of short circuits caused by the breakage of traditional collection wire harnesses, and is more convenient, simpler, more beautiful to use, and greatly improves safety;

[0016] Using a PC cover to protect the battery pack can effectively avoid the impact of the battery case on the battery pack and prevent the battery pack from short - circuiting due to contact with the metal battery case. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the screw installation structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of the battery cell installation structure of the present utility model.

[0020] LEGEND DESCRIPTION:

[0021] 1. Baffle; 2. Formed bracket; 3. Battery cell; 4. Screw; 5. Formed nickel strip; 6. Integrated board; 7. Collection port; 8. First cable slot; 9. Cable; 10. Heat sink; 11. Second cable slot; 12. Integrated board PC cover; 13. Battery pack PC cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Specific embodiments are given below.

[0024] See Figures 1 to 3, An integrated electric vehicle battery pack, comprising a plurality of single-cell battery modules and a baffle 1. The single-cell battery module includes two formed brackets 2 and a plurality of battery cells 3. A plurality of battery cells 3 are installed between the two formed brackets 2. The plurality of battery cells 3 of the single-cell battery module are connected in series and parallel through formed nickel strips 5 on the formed brackets 2. A plurality of single-cell battery modules are installed between the two baffles 1. A screw rod 4 is installed through the two baffles 1 and the plurality of single-cell battery modules, and one end of the screw rod 4 is fixedly connected to the baffle 1 and the single-cell battery module through a nut. A battery pack PC cover 13 is installed outside the plurality of single-cell battery modules;

[0025] An integrated board 6 is installed on the side wall of the single-cell battery module. A plurality of collection ports 7 are opened on the integrated board 6. The collection ports 7 are electrically connected to the formed nickel strips 5 through collection wires. A first cable slot 8 is opened on the integrated board 6. An integrated board PC cover 12 is installed outside the integrated board 6. A heat sink 10 is installed outside one of the baffles 1. Two second cable slots 11 are provided on the heat sink 10. One of the second cable slots 11 is in contact connection with the first cable slot 8 through a cable 9. The other second cable slot 11 is connected to the BMS. The integrated board PC cover 12 and the battery pack PC cover 13 are to prevent the damage to the battery pack caused by the shaking of the battery case during the driving of the electric vehicle;

[0026] It is convenient, practical, simple and beautiful, and effectively prevents the short-circuit phenomenon caused by traditional wire harness collection.

[0027] Assemble the formed brackets 2 and the battery cells 3 into a single-cell battery module, install the plurality of single-cell battery modules between the two baffles 1, fix them through the screw rod 4 and the nut, then connect the collection ports 7 of the integrated board 6 to the formed nickel strips 5 of the single-cell battery module, connect the first cable slot 8 of the integrated board 6 to one of the second cable slots 11 of the heat sink 10 through a cable 9, then connect the other second cable slot 11 to the BMS, and at the same time complete the installation of the integrated board PC cover 12 and the battery pack PC cover 13. At this time, place the battery pack in the battery case to complete the assembly and fixation.

[0028] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integrated electric vehicle battery pack, characterized in that: It comprises a plurality of single battery modules and a baffle (1), wherein the single battery module comprises two molded brackets (2) and a plurality of battery cells (3), the plurality of battery cells (3) are mounted between the two molded brackets (2), the plurality of battery cells (3) of the single battery module are connected in series and in parallel via a molded nickel strip (5) on the molded bracket (2), and the plurality of single battery modules are mounted between the two baffles (1); An integrated board (6) is installed on the side wall of the single cell module, and a plurality of collection ports (7) are provided on the integrated board (6), and the collection ports (7) are electrically connected to the molded nickel strip (5) via a collection line; A screw rod (4) is installed between the two baffles (1) and a plurality of single battery modules, and a nut is used at one end of the screw rod (4) to achieve fixed connection between the baffles (1) and the single battery modules; The integrated board (6) is provided with a first cable slot (8), and an integrated board PC cover (12) is installed on the outside of the integrated board (6); A heat sink (10) is installed on the outer side of one of the baffles (1), and two second cable slots (11) are arranged on the heat sink (10), one of the second cable slots (11) is contact-connected with the first cable slot (8) via a cable (9), and the other second cable slot (11) is connected to the BMS.

2. The integrated electric vehicle battery pack according to claim 1, characterized in that: A battery pack PC cover (13) is installed on the outside of a plurality of the single battery modules.

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