Robot lithium battery pack convenient to assemble and disassemble

Abstract

The utility model relates to the field of lithium batteries, in particular to a robot lithium battery pack convenient to assemble and disassemble, which comprises a shell, an accommodating cavity is arranged in the shell, more than three battery packs are arranged in the accommodating cavity, each battery pack consists of a battery fixing support and a battery cell, and each battery fixing support comprises an upper fixing cover, a lower fixing cover and a connecting side plate. The opposite faces of the upper fixing covers and the lower fixing covers are provided with fixing inserting grooves used for installing battery cells, the side walls of the containing cavities, the upper fixing covers and the lower fixing covers are provided with clamping grooves and clamping blocks, the connecting side plates are provided with clamping grooves or clamping blocks, and the two adjacent upper fixing covers or the two adjacent lower fixing covers can be assembled through the clamping grooves and the clamping blocks. The connecting side plates can enable the upper fixing covers and the lower fixing covers to be connected through the clamping grooves or the clamping blocks, the clamping grooves or the clamping blocks of the containing cavities are connected with the clamping grooves or the clamping blocks of the upper fixing covers and the lower fixing covers, disassembly and assembly are convenient, each upper fixing cover and each lower fixing cover can be independently disassembled, and the whole battery pack does not need to be taken out when the battery cells are replaced.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to a robot lithium battery pack which is easy to assemble and disassemble. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Optional positive electrode materials include lithium cobalt oxide, lithium manganese oxide, lithium nickel oxide, lithium iron phosphate, nickel cobalt aluminum ternary and nickel cobalt manganese ternary. Graphite is often used as the negative electrode material. In addition, lithium metal, lithium alloy, silicon carbon negative electrode and oxide negative electrode materials can also be used for the negative electrode. A lithium battery pack is an energy storage device that consists of multiple lithium battery cells and is managed and controlled by a battery management system (BMS).

[0003] A lithium battery pack is composed of multiple lithium battery cells, and its structure mainly consists of multiple battery cells, battery cell brackets, battery cell connectors, circuit boards, protection boards, shells, connecting wires, etc. The battery cell is the core part of the lithium battery pack, which mainly includes the positive electrode, negative electrode, diaphragm, etc. The battery cell is usually cylindrical, square or soft-packed, and different forms of battery cells differ in size, capacity and performance.

[0004] The battery pack in the existing lithium battery pack is composed of multiple battery cells and battery cell holders. The battery cells in the same group are installed on a battery cell holder. When the battery life decreases after a period of use, when replacing it, the entire battery pack is usually disassembled and taken out, and then the battery cells with high loss are replaced. The disassembly and assembly process is cumbersome and takes a long time. Utility Model Content

[0005] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a robot lithium battery pack that is easy to assemble and disassemble, and can effectively solve the technical problem of the complicated process of disassembling and assembling the battery cells.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A robot lithium battery pack that is easy to assemble and disassemble, comprising a shell, a housing chamber is provided in the shell, more than three battery packs are provided in the housing chamber, the battery packs are composed of a battery fixing bracket and more than three battery cells, the battery fixing bracket comprises an upper fixing cover, a lower fixing cover and a connecting side plate, the opposite surfaces of the upper fixing cover and the lower fixing cover are provided with fixing slots for installing the battery cells, the side walls of the housing chamber, the upper fixing cover and the lower fixing cover are provided with card slots and card blocks, the connecting side plate is provided with card slots or card blocks, two adjacent upper fixing covers or lower fixing covers can be assembled through the card slots and card blocks, the connecting side plate can connect the upper fixing cover and the lower fixing cover through the card slots or card blocks, and the card slots or card blocks of the housing chamber are connected to the card slots or card blocks of the upper fixing cover and the lower fixing cover.

[0008] Furthermore, the shell includes an upper cover and a box body, the accommodating cavity is arranged in the box body, and the upper cover is connected to the box body through a buckle.

[0009] Furthermore, the upper cover is provided with a positive pole and a negative pole, more than three battery packs are connected in series, and the first and last battery packs are electrically connected to the positive pole and the negative pole respectively.

[0010] Furthermore, a groove is provided on the surface of the upper cover, and a rotatable handle is provided in the groove.

[0011] Furthermore, a buffer base is provided at the lower end of the box body, and a cavity for reducing external energy is provided in the buffer base.

[0012] Furthermore, a heat dissipation groove is arranged on the surface of the box body, and a plurality of evenly arranged heat dissipation fins are arranged in the heat dissipation groove.

[0013] Furthermore, the cells in the battery pack are connected in parallel via electrode sheets.

[0014] Furthermore, more than two partitions are arranged in the accommodating cavity, and the partitions divide the accommodating cavity into more than three compartments, and more than three groups of battery packs are respectively arranged in the more than three compartments.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the battery cells in the battery pack are installed between the upper fixing cover and the lower fixing cover, and are combined and connected through the upper fixing cover and the lower fixing cover. After the battery cells are installed with the upper fixing cover and the lower fixing cover, the connecting side plate is installed on one side of the upper fixing cover and the lower fixing cover to combine the upper fixing cover and the lower fixing cover. The upper fixing cover and the lower fixing cover located at the edge of the battery pack are connected with the card slot or the card block in the accommodating cavity to fix the battery pack with the accommodating cavity. When it is necessary to replace the battery cell with high loss, the battery cell can be taken out by simply removing the upper fixing cover corresponding to the replaced battery cell. The disassembly and assembly are convenient. Each upper fixing cover and the lower fixing cover can be disassembled separately. There is no need to take out the entire battery pack when replacing the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a robot lithium battery pack that is easy to assemble and disassemble according to the utility model;

[0017] Figure 2 This is a cross-sectional view of a robot lithium battery pack that is easy to assemble and disassemble according to the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a battery pack in a robot lithium battery pack that is easy to assemble and disassemble according to the utility model;

[0019] Figure 4This is a schematic diagram of the connection between adjacent upper fixing covers and lower fixing covers in a robot lithium battery pack that is easy to assemble and disassemble according to the utility model;

[0020] Numbers in the figure: 1-partition, 2-interlayer, 3-upper cover, 4-box, 5-positive column, 6-negative column, 7-battery cell, 8-upper fixed cover, 9-lower fixed cover, 10-connecting side plate, 11-fixed slot, 12-card slot, 13-card block, 14-heat dissipation slot, 15-heat sink, 16-groove, 17-handle, 18-buffer base, 19-cavity, 20-battery pack. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Combine the following Figure 1-Figure 4 A robot lithium battery pack that is easy to assemble and disassemble is described in detail:

[0023] A robot lithium battery pack that is easy to assemble and disassemble, comprising a shell, a receiving cavity is arranged in the shell, three battery packs 20 are arranged in the receiving cavity, two partitions 1 are arranged in the receiving cavity, the partitions 1 separate the receiving cavity into three compartments 2, the three battery packs 20 are arranged in the three compartments 2, the shell comprises an upper cover 3 and a box body 4, the receiving cavity is arranged in the box body 4, the upper cover 3 is connected to the box body 4 through a buckle, the battery cells 7 in the battery pack 20 are connected in parallel through electrode sheets, the upper cover 3 is provided with a positive pole 5 and a negative pole 6, the three battery packs 20 are connected in series, the first and last battery packs 20 are electrically connected to the positive pole 5 and the negative pole 6, respectively, the battery pack 20 is fixed by a battery bracket and The battery fixing bracket is composed of eight battery cells 7, and the battery fixing bracket includes an upper fixing cover 8, a lower fixing cover 9 and a connecting side plate 10. The opposite surfaces of the upper fixing cover 8 and the lower fixing cover 9 are provided with fixing slots 11 for installing the battery cells 7. The side walls of the accommodating cavity, the upper fixing cover 8 and the lower fixing cover 9 are provided with card slots 12 and card blocks 13. The connecting side plate 10 is provided with card slots 12 or card blocks 13. Two adjacent upper fixing covers 8 or lower fixing covers 9 can be assembled through the card slots 12 and the card blocks 13. The connecting side plate 10 can connect the upper fixing cover 8 and the lower fixing cover 9 through the card slots 12 or the card blocks 13. The card slots 12 or the card blocks 13 of the accommodating cavity are connected with the card slots 12 or the card blocks 13 of the upper fixing cover 8 and the lower fixing cover 9.

[0024] The surface of the box body 4 is provided with a heat dissipation groove 14, and a plurality of evenly arranged heat dissipation fins 15 are provided in the heat dissipation groove 14. The heat dissipation fins 15 can increase the area in contact with the air, improve the heat dissipation efficiency, and avoid excessive internal temperature. The surface of the upper cover 3 is provided with a groove 16, and a rotatable handle 17 is provided in the groove 16. The lower end of the box body 4 is provided with a buffer base 18, and a cavity 19 for reducing external energy is provided in the buffer base 18.

[0025] The present embodiment is a robot lithium battery pack that is easy to assemble and disassemble. The battery cell 7 in the battery pack 20 is installed between the upper fixing cover 8 and the lower fixing cover 9, and is combined and connected by the upper fixing cover 8 and the lower fixing cover 9. The card block 13 of the upper fixing cover 8 or the lower fixing cover 9 is inserted into the card slot 12 of the adjacent upper fixing cover 8 or the lower fixing cover 9. After the battery cell 7 is installed with the upper fixing cover 8 and the lower fixing cover 9, the connecting side plate 10 is installed on one side of the upper fixing cover 8 and the lower fixing cover 9, so that the upper fixing cover 8 and the lower fixing cover 9 are combined, and the upper fixing cover 13 located at the edge of the battery pack 20 is connected to the upper fixing cover 8 and the lower fixing cover 9. The fixed cover 8 and the lower fixed cover 9 are connected to the card slot 12 or the card block 13 in the accommodating cavity, so that the battery pack 20 is fixedly connected to the accommodating cavity. When it is necessary to replace the battery cell 7 with high loss, the upper cover 3 is first separated from the box body 4, and the voltage of each battery cell 7 is detected using a multimeter. After the battery cell 7 with abnormal voltage value is found, only the upper fixed cover 8 corresponding to the replaced battery cell 7 needs to be removed to take out the battery cell 7. The disassembly and assembly are convenient, and each upper fixed cover 8 and lower fixed cover 9 can be disassembled separately. When replacing the battery cell 7, there is no need to take out the entire battery pack 20.

[0026] 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 robot lithium battery pack that is easy to assemble and disassemble, comprising a housing, a receiving cavity provided in the housing, and three or more battery packs provided in the receiving cavity, characterized in that: The battery pack is composed of a battery fixing bracket and more than three battery cells. The battery fixing bracket includes an upper fixing cover, a lower fixing cover and a connecting side plate. The opposite surfaces of the upper fixing cover and the lower fixing cover are provided with fixing slots for installing the battery cells. The side walls of the accommodating cavity, the upper fixing cover and the lower fixing cover are provided with card slots and card blocks. The connecting side plate is provided with card slots or card blocks. Two adjacent upper fixing covers or lower fixing covers can be assembled through the card slots and card blocks. The connecting side plate can connect the upper fixing cover and the lower fixing cover through the card slots or card blocks. The card slots or card blocks of the accommodating cavity are connected to the card slots or card blocks of the upper fixing cover and the lower fixing cover.

2. The robot lithium battery pack that is easy to assemble and disassemble according to claim 1, characterized in that: The shell comprises an upper cover and a box body, the accommodating cavity is arranged in the box body, and the upper cover is connected to the box body through a buckle.

3. The robot lithium battery pack that is easy to assemble and disassemble according to claim 2 is characterized in that: The upper cover is provided with a positive pole and a negative pole, more than three battery packs are connected in series, and the first and last battery packs are electrically connected to the positive pole and the negative pole respectively.

4. The robot lithium battery pack that is easy to assemble and disassemble according to claim 2, characterized in that: The surface of the upper cover is provided with a groove, and a rotatable handle is provided in the groove.

5. The robot lithium battery pack that is easy to assemble and disassemble according to claim 2, characterized in that: A buffer base is arranged at the lower end of the box body, and a cavity for weakening external energy is arranged in the buffer base.

6. The robot lithium battery pack that is easy to assemble and disassemble according to claim 2, characterized in that: The surface of the box body is provided with a heat dissipation groove, and a plurality of evenly arranged heat dissipation fins are arranged in the heat dissipation groove.

7. A robot lithium battery pack that is easy to assemble and disassemble according to any one of claims 1 to 5, characterized in that: The cells in the battery pack are connected in parallel via electrode sheets.

8. A robot lithium battery pack that is easy to assemble and disassemble according to any one of claims 1 to 5, characterized in that: More than two partitions are arranged in the accommodating cavity, and the partitions divide the accommodating cavity into more than three partitions, and more than three groups of battery packs are respectively arranged in the more than three partitions.

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