Battery module structure convenient to assemble

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a battery module structure convenient to assemble, which comprises a battery shell, side plate covers are mounted on two sides of the battery shell through screws, an upper cover is mounted at the top end of the battery shell, and national standard hanging rings are mounted at four corners of the top of the upper cover. An off-line charging port is fixed above the upper cover, an on-line charging port is electrically connected above the upper cover, and a display screen, a communication port, a debugging port and an antenna are further installed on the surface of the upper cover. By arranging the battery cell group, the battery cell group can be mounted from two sides and the upper part, the structure is simple, the battery cell group can be fixed only by screws after being assembled without pressing strips, the production cost is reduced, the battery is limited and fixed at the end plate in a module form, and the displacement of the battery pack caused by the movement and vibration of the battery in the battery compartment is prevented; and meanwhile, the soft copper bars are arranged for connection, so that the contact internal resistance is reduced, and the connection stress between the modules is released through the soft copper bars.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a battery module structure which is easy to assemble. Background Art

[0002] Nowadays, all countries are vigorously developing green energy. As a new type of energy, lithium-ion batteries have the advantages of high energy density and power density, high working voltage, light weight, small size, long cycle life, high stability, cleanliness, and environmental protection. They have broad prospects in the field of power batteries, energy storage industry, forklift batteries and other power sources. However, compared with traditional lead-acid batteries, lithium batteries have higher energy and high storage energy density, which is about 6-7 times that of lead-acid batteries. At the same time, lithium batteries have a long service life and a high charging rate, which saves the time cost of charging.

[0003] However, the existing battery assembly structure has certain disadvantages: first, the structure is complex, special equipment is required for welding between battery cells, and the assembly and inspection processes are difficult, which increases the manufacturing cost in disguise; second, the installation of existing batteries generally adopts a series connection to form a whole, and then the batteries are directly pressed with pressure strips in turn. Because there is EVA cotton between the pressure strip and the battery cell, the EVA cotton will deform over time. During the movement, the battery will be displaced, there will be certain risks, and it is not conducive to disassembly and maintenance. Utility Model Content

[0004] The utility model aims to provide a battery module structure that is easy to assemble, so as to solve the problem that the existing battery assembly structure is complex and the battery may be displaced as mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a battery module structure that is easy to assemble, comprising a battery shell, side plate covers are installed on both sides of the battery shell by screws, an upper cover is installed on the top of the battery shell, and national standard lifting rings are installed at the four corners of the top of the upper cover, which facilitate the lifting of the battery shell; an offline charging port is fixed on the top of the upper cover, an online charging port is electrically connected to the top of the upper cover, a battery output port is electrically connected to one side of the surface of the upper cover, and a display screen, a communication port, a debugging port and an antenna are also installed on the surface of the upper cover.

[0006] Preferably, four welding handles are provided on the surface of the battery shell, and the four welding handles are respectively fixedly connected at four corners of the battery shell by bolts, and the welding handles facilitate the taking of the battery shell.

[0007] Preferably, brackets are fixed at both upper and lower ends of the battery housing, and five groups of end plates are fixedly connected between adjacent brackets by bolts, and a plurality of battery cell groups are installed on the surface of each group of end plates.

[0008] Preferably, the battery cell group consists of twenty-four battery cells, and each battery cell is electrically connected through an aluminum sheet to form a battery cell group, and five groups of battery cell groups are connected through soft copper busbars, and the surface of the battery cell group is connected with a series of aluminum sheets.

[0009] Preferably, the connection terminals inside the offline charging port, online charging port and battery output port are tinned copper, the internal connections are copper screws, and the surfaces of the offline charging port, online charging port, battery output port, communication port and debugging port are all equipped with dust covers.

[0010] Preferably, silicone foam is fixed to the surface of the battery housing, the material of the national standard hanging ring is Q, and EVA foam is arranged between the battery cell group and the end plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model provides a battery cell group, which can be installed from both sides and the top, with a simple structure. After assembly, it only needs to be fixed with screws without pressure strips, thereby reducing production costs. The module is used to limit and fix the battery at the end plate to prevent the battery from moving and vibrating in the battery compartment, causing displacement of the battery group.

[0013] 2. The utility model reduces the contact internal resistance by setting a soft copper busbar connection compared with the traditional cable connection, so that the stress of the connection between the modules is released through the soft copper busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional left-view structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional right-side structural schematic diagram of the utility model;

[0016] Figure 3 It is a cross-sectional enlarged structural schematic diagram of the utility model.

[0017] In the figure: 1. Battery casing; 2. Side panel cover; 3. Welding handle; 4. National standard lifting ring; 5. Upper cover; 6. Offline charging port; 7. Online charging port; 8. Battery output port; 9. Display screen; 10. Communication port; 11. Debug port; 12. Antenna; 13. Battery cell group; 14. End plate; 15. Bracket; 16. Battery cell; 17. Aluminum sheet; 18. Soft copper busbar; 19. Series aluminum sheet. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] The utility model provides a battery module structure that is easy to assemble. Figure 1 as well as Figure 3 As shown, it includes a battery shell 1, side plate covers 2 are installed on both sides of the battery shell 1 by screws, an upper cover 5 is installed on the top of the battery shell 1, and national standard lifting rings 4 are installed at the four corners of the top of the upper cover 5. The national standard lifting rings 4 are convenient for lifting the battery shell 1, and brackets 15 are fixed at the upper and lower ends of the battery shell 1, and five groups of end plates 14 are fixedly connected between adjacent brackets 15 by bolts, and a plurality of battery cell groups 13 are installed on the surface of each group of end plates 14, and there is sufficient assembly margin between the end plates 14 and the brackets 15.

[0020] Furthermore, if Figure 2 as well as Figure 3 As shown, the battery cell group 13 is composed of twenty-four battery cells 16, and each battery cell 16 is electrically connected by an aluminum sheet 17 to form a battery cell group 13, and five groups of battery cell groups 13 are connected by soft copper busbars 18. The surface of the battery cell group 13 is connected with a series aluminum sheet 19, and the surface of the series aluminum sheet 19 is nickel-plated. Silicone foam is fixed on the surface of the battery shell 1, and the material of the national standard lifting ring 4 is Q235. EVA foam is arranged between the battery cell group 13 and the end plate 14.

[0021] The utility model provides a battery cell group 13, which can be installed from both sides and from the top, has a simple structure, and only needs to be fixed with screws after assembly without pressure strips, thereby reducing production costs. The battery cell group 13 is limited and fixed at the end plate 14 in the form of a module to prevent the battery from moving and vibrating in the battery compartment and causing displacement of the battery group.

[0022] Furthermore, if Figure 2 as well as Figure 3As shown, an offline charging port 6 is fixed on the upper part of the upper cover 5, an online charging port 7 is electrically connected to the upper part of the upper cover 5, a battery output port 8 is electrically connected to one side of the surface of the upper cover 5, a display screen 9, a communication port 10, a debugging port 11 and an antenna 12 are also installed on the surface of the upper cover 5, the connection terminals inside the offline charging port 6, the online charging port 7 and the battery output port 8 are tinned copper, and the internal connections are all copper screws, and the surfaces of the offline charging port 6, the online charging port 7, the battery output port 8, the communication port 10 and the debugging port 11 are equipped with dust covers, and four welding handles 3 are provided on the surface of the battery shell 1, and the four welding handles 3 are respectively fixedly connected to the four corners of the battery shell 1 by bolts, and the welding handles 3 are convenient for taking the battery shell 1

[0023] The utility model reduces the contact internal resistance by providing the soft copper busbar 18 for connection compared with the traditional cable connection, so that the stress of the connection between the modules is released through the soft copper busbar 18.

[0024] Working principle: When in use, the utility model sets a battery cell group 13, and the battery cell group 13 can be installed from both sides and the top, with a simple structure. After assembly, it only needs to be fixed with screws, and no pressure strips are required, which reduces the production cost. The module is limited and fixed at the end plate 14 to prevent the battery from moving and vibrating in the battery compartment and causing displacement of the battery pack; the utility model sets a soft copper busbar 18 for connection, which reduces the contact internal resistance compared to the traditional cable connection, so that the stress of the connection between the modules can be released through the soft copper busbar 18.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A battery module structure that is easy to assemble, comprising a battery housing (1), Features: Side panels (2) are screwed onto both sides of the battery housing (1); an upper cover (5) is mounted on the top of the battery housing (1); and national standard lifting rings (4) are mounted at four corners of the top of the upper cover (5); the national standard lifting rings (4) facilitate the lifting of the battery housing (1); an offline charging port (6) is fixed on the top of the upper cover (5); an online charging port (7) is electrically connected to the top of the upper cover (5); a battery output port (8) is electrically connected to one side of the surface of the upper cover (5); and a display screen (9), a communication port (10), a debugging port (11) and an antenna (12) are also mounted on the surface of the upper cover (5).

2. A battery module structure that is easy to assemble according to claim 1, Features: Four welding handles (3) are provided on the surface of the battery casing (1), and the four welding handles (3) are respectively fixedly connected to the four corners of the battery casing (1) by bolts, and the welding handles (3) facilitate the picking up of the battery casing (1).

3. A battery module structure that is easy to assemble according to claim 1, Features: Brackets (15) are fixed at both upper and lower ends of the battery housing (1), and five groups of end plates (14) are fixedly connected between adjacent brackets (15) by bolts, and a plurality of battery cell groups (13) are installed on the surface of each group of end plates (14).

4. A battery module structure that is easy to assemble according to claim 3, Features: Each battery cell group (13) is composed of twenty-four battery cells (16), and each battery cell (16) is electrically connected to each other via an aluminum sheet (17) to form a battery cell group (13), and five battery cell groups (13) are connected to each other via a soft copper busbar (18), and a series aluminum sheet (19) is connected to the surface of the battery cell group (13).

5. A battery module structure that is easy to assemble according to claim 1, Features: The connection terminals inside the offline charging port (6), the online charging port (7) and the battery output port (8) are made of tinned copper, and the internal connections are all made of copper screws. The surfaces of the offline charging port (6), the online charging port (7), the battery output port (8), the communication port (10) and the debugging port (11) are all equipped with dust covers.

6. A battery module structure that is easy to assemble according to claim 4, Features: Silicone foam is fixed to the surface of the battery housing (1), the national standard hanging ring (4) is made of Q235, and EVA foam is arranged between the battery cell group (13) and the end plate (14).

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