Linkage transmission assembly structure of lithium battery pack

Abstract

The utility model relates to the technical field of battery assembly structures, in particular to a lithium battery pack linkage transmission assembly structure which comprises a shell, and an upper cover is arranged at the top end of the shell. Compared with the prior art, the lithium battery pack has the advantages that the mounting seat and the plurality of limiting seats are arranged, the plurality of placing holes provide mounting positions for the lithium battery monomers, and the plurality of fixing blocks are T-shaped, so that pressure is conveniently applied to the top ends of the plurality of limiting seats, and the positions of the plurality of lithium battery monomers are conveniently locked; the lithium battery monomers at the bottom end of the limiting seat can be conveniently disassembled and replaced by disassembling the fixing blocks at the two ends of the limiting seat at the designated position, compared with a traditional whole block structure, the structure is more convenient and rapid to disassemble, two fans are electrified to operate, external air is driven to enter the shell and sequentially flow through the multiple lithium battery monomers, and the lithium battery monomers are conveniently replaced. And the heat of the plurality of lithium battery monomers is taken out, so that the problems in the prior art are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery assembly structures, in particular to a lithium battery group linkage transmission assembly structure. Background Art

[0002] With the introduction of relevant policies to promote the new energy vehicle industry in recent years, the electric vehicle industry has achieved unprecedented rapid development. Power batteries are the power source of electric vehicles and are also the key factor restricting the development of electric vehicles. At present, the voltage platform required by the on-board power system of electric vehicles is to connect the batteries in series and parallel to form corresponding modules, and the modules are connected in series to form corresponding battery packs, and then to the on-board power system.

[0003] At present, a battery pack composed of multiple single cells is only pressed and limited by the upper side of the single cell by a cover plate when the single cell is installed. When a single battery needs to be removed for maintenance, the entire cover plate needs to be removed, which is inconvenient to operate. In addition, the sealing structure on the upper side of the cover plate affects the heat dissipation performance of the single cell. Based on this, a lithium battery pack linkage transmission assembly structure is proposed, which provides a structure that is convenient for single-cell replacement of lithium battery cells. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, provide a lithium battery pack linkage transmission assembly structure, and effectively solve the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a lithium battery pack linkage transmission assembly structure, including a shell, a top cover is provided at the top of the shell, four limit blocks are provided at the bottom wall of the shell, and a mounting seat is slidably connected between the four, a plurality of support bars are fixedly connected to the bottom surface of the mounting seat, a plurality of limit seats are provided at the top of the mounting seat, a plurality of placement holes are provided on the bottom surfaces of the plurality of limit seats and the top surfaces of the mounting seats, lithium battery cells are provided between the plurality of placement holes, the top ends of the two sides of the inner wall of the shell are stepped, a plurality of fixing blocks are respectively provided inside, and both ends of the plurality of fixing blocks extend to the top surface of the limit seats, two mounting grooves are provided on one side of the shell, fans are provided on the inner walls of the two mounting grooves, and a plurality of air outlets are provided on the other side of the shell.

[0006] Preferably, any of the above schemes is that the top surface of the upper cover is fixedly connected to the top of the outer shell by screws, and the bottom surface of the upper cover is fitted with the top surfaces of multiple fixed blocks. By using this scheme, it is convenient to limit the multiple fixed blocks after the upper cover is installed, and at the same time, it is prevented that the screws used for the fixed blocks slip out accidentally, thereby ensuring the safety of the overall structure.

[0007] Preferably, any of the above schemes is that a control circuit board is provided on one side of the inner wall of the outer shell, and a gap is left between the control circuit board and the outer wall of the plurality of lithium battery cells. The control circuit board in this scheme is electrically connected to one end of the plurality of metal bars through a wire, so as to facilitate electrical connection with the plurality of lithium battery cells. At the same time, the control circuit board is provided with a plurality of detection chips for performing voltage and current detection on the plurality of lithium battery cells.

[0008] Preferably, any of the above schemes has a T-shaped outer shape, and one side of the multiple fixed blocks is fixedly connected to the two sides of the inner wall of the outer shell by screws. By using this scheme, it is convenient to form a detachable structure with multiple fixed blocks, and the T-shaped structure makes it convenient to press one end of the fixed block against one end of the limit seat, so that the connecting electrode is electrically connected to the electrode of the lithium battery cell.

[0009] Preferably, any of the above schemes is that the interiors of the plurality of limit seats and mounting seats are inlaid with metal strips, the plurality of metal strips are respectively arranged in the interiors of the plurality of placement holes, the plurality of metal strips are provided with a plurality of spring clips near the outer walls of the placement holes, one ends of the plurality of spring clips are fixedly connected with connecting electrodes, the plurality of spring clips in this scheme can elastically deform themselves, which is convenient for pushing the connecting electrodes, and after the limit seat is installed, the fixing block is convenient for pressing the limit seat, so that the connecting electrodes are electrically connected to the electrodes of the lithium battery cell, thereby realizing the connectivity of the circuit and facilitating the folding and replacement of lithium battery cells in different positions.

[0010] The utility model has the following advantages:

[0011] 1. A lithium battery pack linkage transmission assembly structure is provided with a mounting seat and multiple limit seats, and multiple placement holes provide mounting positions for lithium battery cells. Multiple fixing blocks are provided, all of which are T-shaped, so that it is convenient to apply pressure to the tops of the multiple limit seats, and to lock the positions of the multiple lithium battery cells. By disassembling the fixing blocks at both ends of the limit seats at the specified positions, it is convenient to disassemble and replace the lithium battery cells at the bottom of the limit seats. Compared with the traditional whole block structure, the above structure is more convenient and quick to disassemble, thereby effectively solving the problems existing in the prior art.

[0012] 2. This kind of lithium battery pack linkage transmission assembly structure is enclosed by an outer shell and an upper cover to form a closed space. A mounting seat is provided with a plurality of support bars on its bottom surface, so that a certain gap is left between the mounting seat and the bottom wall of the outer shell. Two fans are powered on to drive external air into the interior of the outer shell, and flow through a plurality of lithium battery cells in turn, and finally flow out from a plurality of air outlets. The flowing air can easily bring out the heat of the plurality of lithium battery cells, so that the temperature of the plurality of lithium battery cells is maintained in a safe range, effectively solving the problems existing in the prior art.

[0013] 3. This kind of lithium battery pack linkage transmission assembly structure is provided with multiple metal bars, and the outer walls of the multiple metal bars are provided with multiple springs and connecting electrodes. When pressure is applied to the limit seat, the connecting electrodes are connected to the electrodes of the lithium battery cells to complete the circuit connection, which is convenient for the early installation and later disassembly and replacement of the lithium battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0016] Figure 3 It is a schematic diagram of the cutaway structure of the housing of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0018] Figure 5 This is a schematic diagram of the structure of the mounting seat of the utility model from a first perspective;

[0019] Figure 6 This is a schematic diagram of the structure of the mounting seat of the utility model from a second viewing angle;

[0020] Figure 7 It is a schematic diagram of the partial cutaway structure of the limit seat of the utility model;

[0021] Figure 8 This is a schematic diagram of the metal strip structure of the utility model.

[0022] In the figure: 1-housing, 2-fan, 3-upper cover, 4-air outlet, 5-fixing block, 6-mounting slot, 7-limiting block, 8-control circuit board, 9-lithium battery cell, 10-support bar, 11-mounting seat, 12-placing hole, 13-metal bar, 14-connecting electrode, 15-spring, 16-limiting seat. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0024] like Figures 1 to 8As shown, a lithium battery pack linkage transmission assembly structure comprises a shell 1, a top end of the shell 1 is provided with an upper cover 3, a bottom wall of the shell 1 is provided with four limit blocks 7, and a mounting seat 11 is slidably connected between the four, a bottom surface of the mounting seat 11 is fixedly connected with a plurality of support bars 10, a top of the mounting seat 11 is provided with a plurality of limit seats 16, a bottom surface of the plurality of limit seats 16 and a top surface of the mounting seat 11 are provided with a plurality of placement holes 12, lithium battery cells 9 are provided between the plurality of placement holes 12, the top ends of both sides of the inner wall of the shell 1 are stepped, a plurality of fixing blocks 5 are respectively provided therein, both ends of the plurality of fixing blocks 5 extend to the top surface of the limit seats 16, one side of the shell 1 is provided with two mounting grooves 6, the inner walls of the two mounting grooves 6 are provided with fans 2, and a plurality of air outlets 4 are provided on the other side of the shell 1.

[0025] The top surface of the upper cover 3 is fixedly connected to the top of the outer shell 1 by screws, and the bottom surface of the upper cover 3 is in contact with the top surfaces of multiple fixing blocks 5. As an optional technical solution of the utility model, it is convenient to limit the multiple fixing blocks 5 after the upper cover 3 is installed, and at the same time, it is prevented that the screws used for the fixing blocks 5 accidentally slip out, thereby ensuring the safety of the overall structure.

[0026] A control circuit board 8 is provided on one side of the inner wall of the outer shell 1, and a gap is left between it and the outer wall of the multiple lithium battery cells 9. As an optional technical solution of the present invention, the control circuit board 8 is electrically connected to one end of the multiple metal strips 13 through a wire, so as to facilitate electrical connection with the multiple lithium battery cells 9. At the same time, the control circuit board 8 is provided with multiple detection chips for performing voltage and current detection on the multiple lithium battery cells 9.

[0027] The shapes of the multiple fixing blocks 5 are all T-shaped, and one side of the multiple fixing blocks 5 is fixedly connected to the two sides of the inner wall of the outer shell 1 by screws. As an optional technical solution of the present invention, this makes it easy for the multiple fixing blocks 5 to form a detachable structure, and the T-shaped structure makes it easy to press one end of the fixing block 5 against one end of the limit seat 16, so that the connecting electrode 14 is electrically connected to the electrode of the lithium battery cell 9.

[0028] The interior of multiple limit seats 16 and mounting seats 11 are inlaid with metal strips 13, and the multiple metal strips 13 are respectively arranged in the interior of multiple placement holes 12. Multiple metal strips 15 are arranged on the outer walls of the multiple metal strips 13 near the placement holes 12, and one end of the multiple spring clips 15 is fixedly connected to the connecting electrode 14. As an optional technical solution of the utility model, the multiple spring clips 15 themselves can be elastically deformed, which is convenient for pushing the connecting electrode 14. After the limit seat 16 is installed, the fixing block 5 is convenient for pressing the limit seat 16, so that the connecting electrode 14 is electrically connected to the electrode of the lithium battery cell 9, so as to realize the connection of the circuit, which is convenient for folding and replacing the lithium battery cells 9 in different positions.

[0029] The lithium battery pack linkage transmission assembly structure requires the following steps when in use:

[0030] 1) When disassembling, remove the upper cover 3;

[0031] 2) Remove the fixing blocks 5 at both ends of the limit seat 16 at the specified position in sequence, and then remove the limit seat 16;

[0032] 3) Pull out the lithium battery cell 9 that needs to be replaced from the placement hole 12, and then put a new lithium battery cell 9 back into it;

[0033] 4) Put the limit seat 16 back to its original position, and re-fix the two fixing blocks 5 to fix the limit seat 16;

[0034] 5) The upper cover 3 is fixedly connected to the top of the outer shell 1 .

[0035] In summary, when the user uses it, by setting the mounting seat 11 and multiple limiting seats 16, multiple placement holes 12 provide mounting positions for the lithium battery cells 9, and by setting multiple fixing blocks 5, all of which are T-shaped in appearance, it is convenient to apply pressure to the top ends of the multiple limiting seats 16, so as to facilitate the position locking of the multiple lithium battery cells 9, and by disassembling the fixing blocks 5 at both ends of the limiting seats 16 at the specified positions, it is convenient to disassemble and replace the lithium battery cells 9 at the bottom of the limiting seats 16. Compared with the traditional whole block structure, the above structure is more convenient and quick to disassemble, thereby effectively solving the problems existing in the prior art, and then the shell 1 and the upper cover 3 are enclosed to form a closed space, and the mounting seat 11 is provided with multiple support bars 10 on its bottom surface, so that A certain gap is left between the mounting seat 11 and the bottom wall of the outer shell 1. The two fans 2 are powered on to drive external air into the interior of the outer shell 1, and flow through multiple lithium battery cells 9 in sequence, and finally flow out from multiple air outlets 4. The flowing air can easily bring out the heat of the multiple lithium battery cells 9, so that the temperature of the multiple lithium battery cells 9 is maintained in a safe range, effectively solving the problems existing in the prior art. Finally, multiple metal strips 13 are arranged, and the outer walls of the multiple metal strips 13 are provided with multiple springs 15 and connecting electrodes 14. When pressure is applied to the limit seat 16, the connecting electrode 14 is connected to the electrode of the lithium battery cell 9 to complete the circuit connection, which is convenient for the early installation of the lithium battery cell 9 and the later disassembly and replacement.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Lithium battery pack linkage transmission assembly structure, characterized by: The invention comprises a shell (1), wherein the top of the shell (1) is provided with an upper cover (3), the bottom wall of the shell (1) is provided with four limit blocks (7), and a mounting seat (11) is slidably connected between the four, the bottom surface of the mounting seat (11) is fixedly connected with a plurality of support bars (10), the top of the mounting seat (11) is provided with a plurality of limit seats (16), the bottom surfaces of the plurality of limit seats (16) and the top surface of the mounting seat (11) are provided with a plurality of placement holes (12), and lithium battery cells (9) are arranged between the plurality of placement holes (12), the top surfaces of both sides of the inner wall of the shell (1) are both stepped in shape, and a plurality of fixing blocks (5) are respectively arranged inside, and the two ends of the plurality of fixing blocks (5) extend to the top surface of the limit seat (16), one side of the shell (1) is provided with two mounting grooves (6), the inner walls of the two mounting grooves (6) are provided with fans (2), and the other side of the shell (1) is provided with a plurality of air outlets (4).

2. The lithium battery pack linkage transmission assembly structure according to claim 1, characterized in that: The top surface of the upper cover (3) is fixedly connected to the top of the outer shell (1) by means of screws, and the bottom surface of the upper cover (3) is in contact with the top surfaces of a plurality of fixing blocks (5).

3. The lithium battery pack linkage transmission assembly structure according to claim 2, characterized in that: A control circuit board (8) is arranged on one side of the inner wall of the housing (1), with a gap between the control circuit board (8) and the outer walls of the plurality of lithium battery cells (9).

4. The lithium battery pack linkage transmission assembly structure according to claim 3, characterized in that: The multiple fixing blocks (5) are all T-shaped in appearance, and one side of the multiple fixing blocks (5) is fixedly connected to two sides of the inner wall of the outer shell (1) by means of screws.

5. The lithium battery pack linkage transmission assembly structure according to claim 4, characterized in that: The interior of the plurality of limit seats (16) and the mounting seat (11) are inlaid with metal strips (13), the plurality of metal strips (13) are respectively arranged inside the plurality of placement holes (12), the plurality of metal strips (13) are each provided with a plurality of spring sheets (15) on the outer walls close to the placement holes (12), and one end of the plurality of spring sheets (15) is fixedly connected to a connection electrode (14).

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