Assembled lithium battery

Abstract

The utility model discloses an assembled lithium battery, which relates to the technical field of lithium batteries, and comprises a lithium battery body, one end of the lithium battery body is provided with two first mounting grooves, a plurality of first springs are arranged in the lithium battery body, the first springs are respectively positioned in the first mounting grooves, and one end of each first spring is provided with a limiting block. A first power connection piece is arranged on the side wall of the lithium battery body, two assembling seats are arranged on the side wall of the lithium battery body, a plurality of second springs are arranged in the assembling seats, and a clamping block is arranged at one end of each second spring. And secondly, the threaded rod is rotated to drive the second push block to push the end, away from the fixing block, of the second power connection piece to tilt up, so that the second power connection piece and the first power connection piece are connected in series more tightly.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to an assembled lithium battery. Background Art

[0002] Series connection is one of the basic ways to connect circuit elements. The circuit elements are connected end to end one by one in sequence. The circuit formed by connecting the electrical appliances in series is called a series circuit. The current passing through each electrical appliance in the series circuit is equal. Since the battery structure is small and the series connection requires multiple batteries to be combined together to form a series connection, the series connection work is very cumbersome for a large number of batteries.

[0003] Chinese patent document CN219832885U discloses an assembled lithium battery, including a battery mechanism arranged outside the battery cell, a mounting groove is arranged on one side of the battery mechanism, and a mounting piece is arranged on the other side; a first contact piece is arranged in the mounting groove and electrically connected to the battery cell; a second contact piece is electrically connected to the battery cell, one end of which is fixed on the mounting piece and the other end is a free end; a pressure mechanism is arranged on the mounting piece, and cooperates with the mounting piece to engage with the mounting groove to connect the two battery mechanisms; when the mounting piece of one battery mechanism is engaged with the mounting groove of another battery mechanism, the first contact piece contacts the second contact piece to connect the two battery mechanisms in series. The above-mentioned assembled lithium battery has shortcomings. Although the device realizes the rapid assembly of two lithium batteries, it has limitations. The push plate is triangular in shape. When multiple springs push the push plate to fix the inner wall of the mounting groove, the push plate is unevenly stressed, and its clamping force decreases from top to bottom, which easily causes the mounting piece to slide in the mounting groove. Secondly, there is no vertical limit for the mounting piece, and its stability is poor.

[0004] Therefore, in order to solve such problems, we propose an assembled lithium battery. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled lithium battery, aiming to solve the problem in the above-mentioned background technology that the existing assembled lithium battery is unevenly stressed on the push plate during use, and its clamping force decreases from top to bottom, which easily causes the mounting part to slide in the mounting groove. Secondly, there is no vertical limit on the mounting part, and its stability is poor.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an assembled lithium battery, comprising a lithium battery body, two first mounting grooves are provided at one end of the lithium battery body, a plurality of first springs are arranged inside the lithium battery body, the first springs are respectively located in the first mounting grooves, a limiting block is arranged at one end of the first spring, the limiting block is slidably connected to the first mounting groove, a first power contact piece is arranged on the side wall of the lithium battery body, the first power contact piece and the first mounting groove are located on the same side wall of the lithium battery body, and the first power contact piece is located between the two first mounting grooves, two assembly seats are arranged on the side wall of the lithium battery body, the assembly seat and the first mounting groove are located on the same side wall of the lithium battery body, a second mounting groove is provided on the adjacent side walls of the two assembly seats, a plurality of second springs are arranged inside the assembly seat, the second springs are respectively located in the second mounting grooves, a clamping block is arranged at one end of the second spring, the clamping block is slidably connected to the second mounting groove, and the side wall of the lithium battery body away from the assembly seat is fixedly connected with the mounting seat.

[0007] Preferably, a third mounting groove is provided on the side wall of the mounting seat away from the lithium battery body, a fixing block is fixedly connected to the side wall of the mounting seat away from the lithium battery body, a second power connection plate is fixedly connected to the lower end of the fixing block, a threaded column is threadedly connected to the upper end of the mounting seat, one end of the threaded column located inside the mounting seat is rotatably connected to the first push block through a bearing, one end of the first push block away from the threaded column is slidably connected to the second push block, the second push block is located in the third mounting groove, the second push block is slidably connected to the third mounting groove, two non-adjacent side walls of the second push block are respectively fixedly connected to push plates, and a third spring is provided at one end of the push plate close to the second power connection plate.

[0008] Preferably, the first mounting groove, the limiting block, the second mounting groove and the clamping block are all T-shaped.

[0009] Preferably, an inclined surface is provided at one end of the limiting block away from the first spring, and an inclined surface is provided at one end of the clamping block away from the second spring.

[0010] Preferably, one end of the clamping block away from the second spring is fixedly connected with a rubber plate.

[0011] Preferably, an inclined surface is provided at one adjacent end of the first pushing block and the second pushing block.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, a clamping block and a plurality of second springs are used to clamp the mounting seat, and the clamping force of the clamping block is evenly distributed on the mounting seat, so that the clamping is more stable. Secondly, a limit block and a first spring are used to limit the mounting seat in the vertical direction to prevent the mounting seat from sliding up and down, and the stability is high. Secondly, a threaded column, a first push block, a second push block, a push plate and a third spring are provided. The threaded rod is rotated to drive the second push block to push the second power terminal away from one end of the fixed block to tilt up, so that the second power terminal and the first power terminal are connected in series more closely, and the structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional schematic diagram of an assembled lithium battery proposed by the utility model Figure 1 ;

[0015] Figure 2 A three-dimensional schematic diagram of an assembled lithium battery proposed by the utility model Figure 2 ;

[0016] Figure 3 This is a three-dimensional exploded schematic diagram of an assembly seat in an assembled lithium battery proposed by the utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram of a mounting seat in an assembled lithium battery proposed by the utility model;

[0018] Figure 5 The utility model is a three-dimensional exploded schematic diagram of the internal structure of a mounting seat in an assembled lithium battery.

[0019] Legend:

[0020] 1. Lithium battery body; 101. First mounting slot; 11. First spring; 12. Limit block; 13. First power connection plate; 2. Assembly seat; 21. Second mounting slot; 22. Second spring; 23. Clamping block; 24. Rubber plate; 3. Mounting seat; 301. Third mounting slot; 31. Fixing block; 32. Second power connection plate; 33. Threaded column; 34. First push block; 35. Second push block; 36. Push plate; 37. Third spring. 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] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "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, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Reference Figure 1-5 The utility model provides an embodiment: an assembled lithium battery, including a lithium battery body 1, two first mounting grooves 101 are opened at one end of the lithium battery body 1, a plurality of first springs 11 are arranged inside the lithium battery body 1, the first springs 11 are respectively located in the first mounting grooves 101, a limiting block 12 is arranged at one end of the first spring 11, the limiting block 12 is slidably connected with the first mounting groove 101, a first power connection sheet 13 is arranged on the side wall of the lithium battery body 1, the first power connection sheet 13 and the first mounting groove 101 are located on the same side wall of the lithium battery body 1, and the first The power connection piece 13 is located between the two first mounting grooves 101, and two assembly seats 2 are arranged on the side wall of the lithium battery body 1. The assembly seat 2 and the first mounting groove 101 are located on the same side wall of the lithium battery body 1, and the adjacent side walls of the two assembly seats 2 are provided with a second mounting groove 21. A plurality of second springs 22 are arranged inside the assembly seat 2, and the second springs 22 are respectively located in the second mounting grooves 21. A clamping block 23 is arranged at one end of the second spring 22, and the clamping block 23 is slidably connected to the second mounting groove 21. The side wall of the lithium battery body 1 away from the assembly seat 2 is fixedly connected with the mounting seat 3.

[0024] The arrangement is achieved by placing the mounting seat 3 of another lithium battery body 1 just above the assembly seat 2 at one end of a lithium battery body 1, and then pressing the mounting seat 3 of the other lithium battery body 1 vertically downward, so that the mounting seat 3 simultaneously squeezes the limit block 12 and the clamping block 23, so that the limit block 12 squeezes the first spring 11, so that the limit block 12 slides into the first mounting groove 101, and the clamping block 23 squeezes the second spring 22, so that the clamping block 23 slides into the second mounting groove 21, and when the second power contact piece 32 at one end of the mounting seat 3 is completely in contact with the first power contact piece 13, the pressing of the mounting seat 3 is stopped, and at this time, the mounting seat 3 releases the squeezing of the limit block 12 and the clamping block 23, and then the limit block 12 and the clamping block 23 respectively use the elastic force of the first spring 11 and the second spring 22 to slide out of the first mounting groove 101 and the second mounting groove 21, thereby achieving the clamping and limiting of the lithium battery body 1.

[0025] A third mounting groove 301 is provided on the side wall of the mounting seat 3 away from the lithium battery body 1, a fixing block 31 is fixedly connected to the side wall of the mounting seat 3 away from the lithium battery body 1, a second power connection plate 32 is fixedly connected to the lower end of the fixing block 31, a threaded column 33 is threadedly connected to the upper end of the mounting seat 3, one end of the threaded column 33 located inside the mounting seat 3 is rotatably connected to a first push block 34 through a bearing, one end of the first push block 34 away from the threaded column 33 is slidably connected to a second push block 35, the second push block 35 is located in the third mounting groove 301, the second push block 35 is slidably connected to the third mounting groove 301, and two non-adjacent side walls of the second push block 35 are respectively fixedly connected to push plates 36, the push plates A third spring 37 is provided at one end of 36 close to the second power contact piece 32, which is used to rotate the threaded column 33 so that the threaded column 33 drives the first push block 34 to move vertically and linearly, so that the first push block 34 pushes the second push block 35 to slide in the third installation groove 301 toward the second power contact piece 32, and the second push block 35 drives the push plate 36 to slide in the third installation groove 301 toward the second power contact piece 32, so that the push plate 36 squeezes the third spring 37, so that the end of the second power contact piece 32 away from the fixing block 31 is tilted, so that the second power contact piece 32 and the first power contact piece 13 are in closer contact, thereby increasing the stability of the assembly of the lithium battery body 1.

[0026] The first mounting groove 101 , the limiting block 12 , the second mounting groove 21 and the clamping block 23 are all T-shaped, which are used to limit the limiting block 12 and the clamping block 23 to prevent the limiting block 12 and the clamping block 23 from directly sliding out of the first mounting groove 101 and the second mounting groove 21 .

[0027] The end of the limit block 12 away from the first spring 11 is provided with an inclined surface, and the end of the clamping block 23 away from the second spring 22 is provided with an inclined surface for quickly engaging the assembly seat 2 of one lithium battery body 1 with the mounting seat 3 of another lithium battery body 1.

[0028] One end of the clamping block 23 away from the second spring 22 is fixedly connected with a rubber plate 24, which is used for buffering when the clamping block 23 clamps the mounting seat 3, reducing damage to the mounting seat 3 caused by clamping. At the same time, the large friction force of the rubber plate 24 surface can be used to increase the clamping stability of the mounting seat 3.

[0029] The adjacent ends of the first push block 34 and the second push block 35 are both provided with inclined surfaces, so as to enable the second push block 35 to slide in the third installation groove 301 when the first push block 34 moves vertically downward.

[0030] Working principle: first, the mounting seat 3 of another lithium battery body 1 is placed just above the assembly seat 2 at one end of a lithium battery body 1, and then the mounting seat 3 of the other lithium battery body 1 is pressed vertically downward, and the mounting seat 3 squeezes the limit block 12 and the clamping block 23 at the same time, the limit block 12 squeezes the first spring 11, the limit block 12 slides into the first mounting groove 101, and the clamping block 23 squeezes the second spring 22, and the clamping block 23 slides into the second mounting groove 21, and when the second power contact piece 32 at one end of the mounting seat 3 is completely in contact with the first power contact piece 13, the pressing of the mounting seat 3 is stopped, and at this time, the mounting seat 3 releases the squeezing of the limit block 12 and the clamping block 23, and then the limit block 12 and the clamping block 23 respectively use the first The elastic force of the spring 11 and the second spring 22 slides out of the first mounting groove 101 and the second mounting groove 21, thereby achieving clamping and limiting the lithium battery body 1, and then by rotating the threaded column 33, the threaded column 33 drives the first push block 34 to move vertically and linearly, and the first push block 34 pushes the second push block 35 to slide in the third mounting groove 301 toward the second power terminal 32, and the push plate 36 is driven by the second push block 35 to slide in the third mounting groove 301 toward the second power terminal 32, and the push plate 36 squeezes the third spring 37, and the end of the second power terminal 32 away from the fixed block 31 is tilted, and the second power terminal 32 and the first power terminal 13 are connected in series more closely, thereby increasing the stability of the assembly of the lithium battery body 1.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled lithium battery, comprising a lithium battery body (1), characterized in that: The lithium battery body (1) has two first installation grooves (101) at one end, a plurality of first springs (11) are arranged inside the lithium battery body (1), the first springs (11) are respectively located in the first installation grooves (101), a limiting block (12) is arranged at one end of the first spring (11), the limiting block (12) is slidably connected to the first installation groove (101), a first power contact piece (13) is arranged on the side wall of the lithium battery body (1), the first power contact piece (13) and the first installation groove (101) are located on the same side wall of the lithium battery body (1), and the first power contact piece (13) is located between the two first installation grooves (101). Two assembly seats (2) are arranged on the side wall of the lithium battery body (1); the assembly seat (2) and the first mounting groove (101) are located on the same side wall of the lithium battery body (1); the adjacent side walls of the two assembly seats (2) are provided with a second mounting groove (21); a plurality of second springs (22) are arranged inside the assembly seat (2); the second springs (22) are respectively located in the second mounting grooves (21); a clamping block (23) is arranged at one end of the second spring (22); the clamping block (23) is slidably connected to the second mounting groove (21); and the side wall of the lithium battery body (1) away from the assembly seat (2) is fixedly connected with the mounting seat (3).

2. An assembled lithium battery according to claim 1, characterized in that: The side wall of the mounting seat (3) away from the lithium battery body (1) is provided with a third mounting groove (301); the side wall of the mounting seat (3) away from the lithium battery body (1) is fixedly connected with a fixing block (31); the lower end of the fixing block (31) is fixedly connected with a second power contact plate (32); the upper end of the mounting seat (3) is threadedly connected with a threaded column (33); one end of the threaded column (33) located inside the mounting seat (3) is rotatably connected with a first push block (34) through a bearing; one end of the first push block (34) away from the threaded column (33) is slidably connected with a second push block (35); the second push block (35) is located in the third mounting groove (301); the second push block (35) is slidably connected with the third mounting groove (301); two non-adjacent side walls of the second push block (35) are respectively fixedly connected with push plates (36); one end of the push plate (36) close to the second power contact plate (32) is provided with a third spring (37).

3. The assembled lithium battery according to claim 1, characterized in that: The first installation groove (101), the limiting block (12), the second installation groove (21) and the clamping block (23) are all T-shaped.

4. The assembled lithium battery according to claim 1, characterized in that: An end of the limit block (12) away from the first spring (11) is provided with an inclined surface, and an end of the clamping block (23) away from the second spring (22) is provided with an inclined surface.

5. The assembled lithium battery according to claim 1, characterized in that: One end of the clamping block (23) away from the second spring (22) is fixedly connected to a rubber plate (24).

6. An assembled lithium battery according to claim 2, characterized in that: An inclined surface is provided at one adjacent end of the first push block (34) and the second push block (35).

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