Lithium battery for low-speed vehicle

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a low-speed vehicle lithium battery which comprises an outer box body, an integrally formed fixing frame is arranged on the inner wall of the outer box body and close to the top end, two symmetrical fans are arranged on the inner side of the outer box body and close to the bottom end, and a battery rack is arranged on the inner side of the outer box body; a protective cover detachably connected with the battery rack is arranged above the outer box body, fixing mechanisms are arranged on the front side and the rear side of the outer box body and close to the top end, and each fixing mechanism comprises a clamping seat and a fixing block. According to the utility model, through the mutual cooperation of the heat dissipation opening, the ventilation opening and the air inlet hole, the air circulation inside the outer box body can be enhanced, and when the fan runs, the air inside the outer box body can be driven to be quickly discharged from the heat dissipation opening, so that the air inside the battery rack quickly flows, and the heat dissipation effect on the lithium battery is improved; and the service life of the lithium battery is prevented from being influenced by overheating.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery for low-speed vehicles. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. With the development of science and technology, lithium batteries are widely used in the current output of various low-speed vehicles.

[0003] In the prior art, a Chinese patent with publication number CN218731145U discloses a lithium battery for low-speed vehicles, which adopts a scheme of "including a shell, a cover plate is arranged above the shell, cavities are opened on both sides above the inner wall of the shell, one side of the inner wall of the two cavities is fixedly connected with a push spring, the opposite ends of the two push springs are fixedly connected with a moving block, and the upper surfaces of the two cavities are opened with openings..." This scheme provides a method for installing and disassembling a lithium battery.

[0004] However, the above scheme still has some shortcomings. For example, the space inside the shell is relatively closed. When the lithium battery is continuously charged and discharged, the lithium battery will generate more heat. The space inside the shell is closed, resulting in poor air flow inside the shell, which affects the heat dissipation effect of the lithium battery and easily causes the lithium battery to overheat and affect its service life. In view of this, the utility model proposes a lithium battery for low-speed vehicles. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery for low-speed vehicles to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A lithium battery for a low-speed vehicle, comprising an outer box, an integrally formed fixing frame is arranged on the inner wall of the outer box near the top, two symmetrical fans are arranged on the inner side of the outer box near the bottom, and a battery rack is arranged on the inner side of the outer box;

[0008] A protective cover detachably connected to the battery rack is arranged above the outer box body, and fixing mechanisms are arranged on both the front and rear sides of the outer box body and near the top, and the fixing mechanisms include a card seat and a fixing block.

[0009] As a preferred technical solution, two symmetrical heat dissipation openings are opened on the left and right side walls of the outer box body and near the bottom, the two fans are respectively installed in the two heat dissipation openings, and a dustproof net is installed on the end of the heat dissipation opening facing outward.

[0010] As a preferred technical solution, an integrally formed connecting frame is provided at the top of the battery rack and near the top end, and the connecting frame is fixedly connected to the fixing frame by bolts. Support feet are welded at the bottom of the battery rack and at the four corners, and the side surfaces of the support feet fit with the inner wall of the outer box body.

[0011] As a preferred technical solution, a plurality of evenly distributed ventilation holes are provided on the side wall of the battery rack.

[0012] As a preferred technical solution, an integrally formed positioning frame is provided at the bottom of the protective cover, the positioning frame is snap-connected in the outer box, and a plurality of evenly distributed air inlet holes are provided on the side of the protective cover.

[0013] As a preferred technical solution, plug blocks are provided on the front and rear sides of the protective cover near the center, the plug blocks are engaged with the card holder, and a fixing groove is provided on the plug blocks near the center.

[0014] As a preferred technical solution, the socket is welded on the outer wall of the outer box body and close to the top position, the fixed block is slidably set in the socket and engaged with the fixed groove, and the socket is threaded with an adjusting screw, and the adjusting screw is rotatably connected to the fixed block.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model is provided with an outer box, a battery rack and a protective cover. The heat dissipation port, the air vent and the air inlet cooperate with each other to enhance the air circulation inside the outer box. When the fan is running, the air inside the outer box can be quickly discharged from the heat dissipation port, so that the air inside the battery rack can flow quickly, thereby improving the heat dissipation effect on the lithium battery and preventing the lithium battery from overheating and affecting its service life.

[0017] 2. The utility model is provided with a fixing mechanism, and the plug block is engaged with the card seat. When the adjusting screw is rotated, the fixing block can be driven to engage with the fixing groove, and the plug block can be locked and fixed. The plug block can be locked and fixed quickly to prevent the protective cover from being separated from the outer box body, and the protective cover has a high installation and disassembly efficiency, which is convenient for the inspection and replacement of the lithium battery inside the battery rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the outer box structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the battery rack structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the protective cover structure of the utility model.

[0024] In the figure:

[0025] 1 outer box body, 11 fixing frame, 12 heat dissipation port, 13 fan, 131 dust screen;

[0026] 2 battery rack, 21 connection frame, 22 support leg, 23 ventilation port;

[0027] 3 protective cover, 31 positioning frame, 32 air inlet hole, 33 plug block, 34 fixing slot;

[0028] 4: a card holder, 41: a fixing block, 42: an adjusting screw. DETAILED DESCRIPTION

[0029] 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.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] According to the attached Figure 1-Figure 5As shown, an embodiment of the utility model provides a lithium battery for a low-speed vehicle, including an outer box body 1, an integrally formed fixing frame 11 is arranged on the inner wall of the outer box body 1 and near the top end, two symmetrical fans 13 are arranged on the inner side of the outer box body 1 and near the bottom end, a battery rack 2 is arranged on the inner side of the outer box body 1, and an integrally formed connecting frame 21 is arranged on the top of the battery rack 2 and near the top end, and the connecting frame 21 is fixedly connected to the fixing frame 11 by bolts.

[0033] Two symmetrical heat dissipation ports 12 are provided on the left and right side walls of the outer box body 1 and near the bottom. Two fans 13 are respectively installed in the two heat dissipation ports 12. A dustproof net 131 is installed at the end of the heat dissipation port 12 facing outward. The fan 13 is driven to rotate by a motor. When the fan 13 is running, the hot air in the outer box body 1 can be discharged through the heat dissipation port 12, thereby preventing the lithium battery from overheating and affecting its use. The dustproof net 131 plays a dust-proof role in the heat dissipation process. A number of evenly distributed air holes 23 are provided on the side walls of the battery rack 2. The air holes 23 allow air to circulate inside and outside the battery rack 2, which is convenient for heat dissipation of the lithium battery.

[0034] An integrally formed positioning frame 31 is provided at the bottom of the protective cover 3 and located on the inner side of the outer box body 1. The positioning frame 31 is snap-fitted with the inner wall of the outer box body 1. The positioning frame 31 is used to position the protective cover 3. A number of evenly distributed air inlet holes 32 are provided on the side wall of the protective cover 3. Air can enter the top of the battery rack 2 through the air inlet holes 32. The air inlet holes 32 connect the battery rack 2 with the external environment, and the heat dissipation effect on the inside of the lithium battery is achieved through the exchange and circulation of internal and external air.

[0035] A protective cover 3 is provided on the top of the outer box body 1, and fixing mechanisms are provided on the front and rear sides and near the top of the outer box body 1, and the fixing mechanisms include a socket 4 and a fixing block 41. The bottom of the battery rack 2 is welded with supporting legs 22 at the four corners, and the bottom of the supporting legs 22 is in contact with the inner wall of the outer box body 1. The supporting legs 22 support the battery rack 2 and are in contact with the inner wall to improve the stability of the battery rack 2. Insertion blocks 33 are provided on the front and rear sides of the protective cover 3 and near the center. The insertion block 33 is snap-fitted with the socket 4, and a fixing groove 34 is provided on the insertion block 33 and near the center.

[0036] The base 4 is welded and fixed on the outer wall of the outer box body 1 near the top, the fixing block 41 is slidably set on the inner side of the base 4, and the fixing block 41 is snap-fitted with the fixing groove 34, and an adjusting screw 42 is threadedly inserted on one side of the base 4 near the fixing block 41. The adjusting screw 42 is rotatably connected to the fixing block 41. When the adjusting screw 42 is rotated, the threaded connection can push the fixing block 41 to move inward, and the fixing block 41 will eventually snap-fit ​​with the fixing groove 34, thereby realizing the locking and fixing of the insert block 33 to prevent the protective cover 3 from separating from the outer box body 1, and the direct rotation installation method has a higher installation efficiency.

[0037] In the present invention, the battery rack 2 is first moved to the inner side of the outer box 1, so that the connection frame 21 is close to the fixing frame 11, and then the connection frame 21 is fixed by bolts. After the battery rack 2 is installed in the outer box 1, the lithium battery is installed in the battery rack 2. After that, the positioning frame 31 of the protective cover 3 is engaged with the inner wall of the outer box 1, so that the insert block 33 is engaged with the holder 4, and the fixing block 41 is driven to move by rotating the adjusting screw 42, so that the fixing block 41 is engaged with the fixing groove 34, thereby fixing the protective cover 3;

[0038] Furthermore, when the lithium battery is in use, the motor drives the fan 13 to operate, driving the air inside the outer box body 1 to flow in a directional manner, so that the gas flows from the air inlet 32 ​​to the air vent 23, and the air flows into the protective cover 3 through the air inlet 32. The flowing air contacts the lithium battery in the battery rack 2 and takes away the heat on the surface of the lithium battery. The hot air flows to the inner side of the outer box body 1 through the air vent 23, and the hot air is discharged through the heat dissipation port 12, thereby quickly dissipating the heat of the lithium battery.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lithium battery for a low-speed vehicle, comprising an outer box (1), characterized in that: An integrally formed fixing frame (11) is arranged on the inner wall of the outer box (1) near the top end, two symmetrical fans (13) are arranged on the inner side of the outer box (1) near the bottom end, and a battery rack (2) is arranged on the inner side of the outer box (1); A protective cover (3) detachably connected to the battery rack is arranged above the outer box (1), and fixing mechanisms are arranged on both the front and rear sides of the outer box (1) and near the top, the fixing mechanisms comprising a holder (4) and a fixing block (41).

2. A lithium battery for a low-speed vehicle according to claim 1, characterized in that: Two symmetrical heat dissipation openings (12) are provided on the left and right side walls of the outer box body (1) and near the bottom end. The two fans (13) are respectively installed in the two heat dissipation openings (12). A dustproof net (131) is installed at one end of the heat dissipation opening (12) facing outward.

3. A lithium battery for a low-speed vehicle according to claim 1, characterized in that: An integrally formed connection frame (21) is provided at the top of the battery rack (2) and near the top end, and the connection frame (21) is fixedly connected to the fixing frame (11) by bolts, and legs (22) are welded at the bottom of the battery rack (2) and at the four corners, and the side surfaces of the legs (22) fit with the inner wall of the outer box body (1).

4. A lithium battery for a low-speed vehicle according to claim 1, characterized in that: A plurality of evenly distributed ventilation openings (23) are provided on the side wall of the battery rack (2).

5. A lithium battery for a low-speed vehicle according to claim 1, characterized in that: An integrally formed positioning frame (31) is provided at the bottom of the protective cover (3), and the positioning frame (31) is snap-connected in the outer box body (1). A plurality of evenly distributed air inlet holes (32) are provided on the side of the protective cover (3).

6. A lithium battery for a low-speed vehicle according to claim 1, characterized in that: Insertion blocks (33) are provided on both sides of the front and rear of the protective cover (3) and near the center. The insertion blocks (33) are engaged with the card holder (4) and a fixing groove (34) is provided on the insertion blocks (33) and near the center.

7. A lithium battery for a low-speed vehicle according to claim 6, characterized in that: The holder (4) is welded on the outer wall of the outer box (1) and is close to the top end. The fixing block (41) is slidably arranged in the holder (4) and is engaged with the fixing groove (34). An adjusting screw (42) is threadedly inserted into the holder (4). The adjusting screw (42) is rotatably connected to the fixing block (41).

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