Carbon-based high and low temperature resistant lithium battery

Abstract

The utility model provides a carbon-based high and low temperature resistant lithium battery which comprises a box body, a plurality of bottom pads with rectangular structures are arranged at the bottom of the box body, a lithium battery is arranged above the bottom pads, side plates are arranged at four corners of the arrayed bottom pads, a wire pipe is arranged in the box body and is positioned on one side of the lithium battery, and the wire pipe is connected with the bottom of the box body. An electric wire used for connecting the lithium battery and the power connector penetrates through the wire tube; a sleeve cover is arranged in the box body and located above the lithium battery, a screw rod is movably installed in the center of the top end of the sleeve cover, and an open hole for the screw rod to penetrate through is formed in the upper surface of the box body. By arranging the liftable sleeve cover, the sleeve cover can be lifted in summer, so that heat generated by the lithium battery can be discharged, and the use safety of the lithium battery is ensured; in winter, the sleeve cover can fall down to wrap the lithium battery, so that the temperature of the lithium battery is prevented from being too low, and the problem that the existing lithium battery cannot be normally used under the condition that the external temperature is too low or too high can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries, and in particular relates to a carbon-based high and low temperature resistant lithium battery. Background Art

[0002] Lithium-ion batteries are currently the most widely used energy storage devices, and carbon-based materials are widely used in lithium-ion batteries due to their unique properties and performance. Carbon-based materials have the advantages of high conductivity, high specific surface area, good chemical stability and low cost, and their performance can be further improved through various methods such as modification and compounding.

[0003] However, it is still impossible to overcome the problem that the existing lithium batteries may not be used normally due to temperature factors in environments with different temperatures, thereby reducing the working efficiency of the lithium batteries. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a carbon-based high and low temperature resistant lithium battery, and the technical solution adopted is as follows:

[0005] A carbon-based high and low temperature resistant lithium battery comprises a box body, a plurality of rectangular bottom pads are arranged at the bottom of the box body, lithium batteries are placed above the bottom pads, a side plate is arranged at the four corners of the bottom pads in an array, a wire tube is arranged inside the box body and on one side of the lithium battery, and a wire for connecting the lithium battery and a power connector is passed through the wire tube;

[0006] A cover is provided inside the box body and above the lithium battery, a screw is movably installed at the center position of the top of the cover, an opening for the screw to pass through is provided on the upper surface of the box body, and a nut threadably connected to the screw is installed above the opening.

[0007] Furthermore, the side panel adopts an "L"-shaped structure that can be engaged with the four corners of the lithium battery.

[0008] Furthermore, a spring is arranged between the upper surface of the cover and the box body, and the lower end of the spring is clamped on the outer side of the boss on the upper surface of the cover.

[0009] Furthermore, the screw is divided into two sections, which are movably connected via a pin. The position of the pin in the screw is higher than the height of the nut, and the upper section of the screw can rotate.

[0010] Furthermore, a slot having the same height as the wire tube is provided on one side of the cover, and one side of the cover is in contact with the vertical portion of the wire tube, which can prevent the cover from rotating when the cover is raised or lowered, thereby ensuring the stability of the cover; and after the cover is completely dropped, the connection between the cover and the wire tube can remain relatively sealed, thereby preventing cold air from entering and causing the temperature of the lithium battery to drop.

[0011] Further, to ensure the seal between the cover and the bottom of the box body after the cover descends, a sealing gasket can be provided around the lower end of the cover.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By providing a liftable cover, in summer, the cover can be lifted to allow the heat generated by the lithium battery to escape, ensuring the safe use of the lithium battery; in winter, the cover can be lowered to wrap the lithium battery, preventing the temperature of the lithium battery from being too low, ensuring the battery life of the lithium battery, improving the working efficiency of the lithium battery, and thus solving the problem that the existing lithium battery cannot be used normally under too low or too high external temperatures.

[0014] The screw of the utility model consists of two parts, connected by a pin shaft in the middle. After the cover is lifted, the connection part of the two sections of the screw will be higher than the position of the nut. At this time, the upper section of the screw can rotate a certain angle around the pin shaft to reduce the height of the screw and avoid the excessive height of the screw affecting the placement of the battery box body. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the utility model;

[0016] Figure 2 is the internal structural schematic diagram of the utility model;

[0017] Figure 3 is the structural schematic diagram of the utility model in the state where the cover is lifted;

[0018] Figure 4 is the overall structural schematic diagram of the cover of the utility model;

[0019] Figure 5 is the structural schematic diagram of the bottom of the box body of the utility model.

[0020] In the figure:

[0021] 1 - box body, 11 - bottom pad, 12 - side plate, 13 - wire tube, 14 - power connector, 2 - lithium battery, 3 - cover, 31 - card slot, 32 - boss, 4 - spring, 5 - screw, 6 - nut. Detailed Embodiments

[0022] To enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0023] As shown in the appendix Figures 1-5 as follows

[0024] A carbon-based high and low temperature resistant lithium battery includes a box body 1. At the bottom of the box body 1, there are several bottom pads 11 in a rectangular structure. Above the bottom pads 11, a lithium battery 2 is placed. On the four corners of the bottom pads 11 arranged in an array, there is a side plate 12 on each corner. The side plate is in an "L" shape and can be engaged with the four corners of the lithium battery 2 to hold the lithium battery 2 and prevent it from moving.

[0025] There is a gap between several bottom pads 11, which can form a channel for air to pass through, facilitating the reduction of the bottom temperature of the lithium battery 2.

[0026] Inside the box body 1 and on one side of the lithium battery 2, there is a wire tube 13. Inside the wire tube 13, there is a wire that can connect the lithium battery 2 to a power connector 14.

[0027] Inside the box body 1 and above the lithium battery 2, there is a cover 3. At the center of the top of the cover 3, a screw rod 5 is movably installed. On the upper surface of the box body 1, there is an opening for the screw rod 5 to pass through, and above the opening, there is a nut 6 threadedly connected to the screw rod 5. By rotating the screw rod 5, the cover 3 inside the box body 1 can be raised or lowered.

[0028] The above-mentioned nut is fixed on the surface of the box body 1 by welding or other means.

[0029] Between the upper surface of the cover 3 and the box body 1, there are two springs 4. The lower ends of the springs 4 are sleeved outside the bosses 32 on the upper surface of the cover 3. After the cover 3 drops, the springs 4 can further push and press the cover 3 to ensure that after the cover 3 drops, it can fully wrap the lithium battery 2.

[0030] The screw rod 5 is divided into two sections, and the two sections are connected by a pin shaft. After the cover 3 is raised, the screw rod 5 is as shown in the appendix Figure 1 and 3 as follows. The connection part of the two sections of the screw rod 5 will be higher than the position of the nut 6. At this time, the upper section of the screw rod can rotate a certain angle with the pin shaft as the center to reduce the height of the screw rod and avoid the screw rod being too high and affecting the placement of the battery box body.

[0031] When it is necessary to lower the cover 3, only need to rotate the upper section of the screw rod 5 that lies down to a state collinear with the lower section of the screw rod 5, and then rotate the screw rod 5 to lower the cover 3.

[0032] The working principle of this embodiment is as follows: In hot summer weather, it is necessary to ensure the ventilation and heat dissipation of the lithium battery 2. At this time, by rotating the screw rod 5, the cover 3 inside the box body 1 is raised, so that the heat generated by the lithium battery 2 can be discharged to ensure the safe use of the lithium battery.

[0033] When the weather is extremely cold in winter, it is necessary to wrap the lithium battery 2. At this time, by rotating the screw 5 in the reverse direction, the inner cover 3 inside the box body 1 can be lowered, so that the inner cover 3 completely wraps the lithium battery 2, avoiding the too low temperature of the lithium battery 2 and ensuring the battery life of the lithium battery.

[0034] Any technical solution using the technical solution of the present utility model, or any technical solution designed by those skilled in the art inspired by the technical solution of the present utility model and achieving the above technical effects shall fall within the protection scope of the present utility model.

Claims

1. A carbon-based high and low temperature resistant lithium battery, comprising a box body (1), characterized in that: A plurality of rectangular bottom pads (11) are provided at the bottom of the box body (1), lithium batteries (2) are placed above the bottom pads (11), a side plate (12) is provided at each of the four corners of the arrayed bottom pads (11), a wire tube (13) is provided inside the box body (1) and on one side of the lithium batteries (2), and a wire for connecting the lithium batteries (2) and a power connector (14) is passed through the wire tube (13); A cover (3) is provided inside the box body (1) and above the lithium battery (2); a screw rod (5) is movably mounted at the center of the top end of the cover (3); an opening for the screw rod (5) to pass through is provided on the upper surface of the box body (1); and a nut (6) threadedly connected to the screw rod (5) is mounted above the opening.

2. The carbon-based high and low temperature resistant lithium battery according to claim 1, characterized in that: The side plate adopts an "L"-shaped structure capable of engaging with the four corners of the lithium battery (2).

3. The carbon-based high and low temperature resistant lithium battery according to claim 1, characterized in that: A spring (4) is provided between the upper surface of the sleeve cover (3) and the box body (1), and the lower end of the spring (4) is clamped on the outer side of the boss (32) on the upper surface of the sleeve cover (3).

4. A carbon-based high and low temperature resistant lithium battery according to claim 1, characterized in that: The screw rod (5) is divided into two sections, and the two sections are movably connected via a pin.

5. The carbon-based high and low temperature resistant lithium battery according to claim 3, wherein: One side of the cover (3) is provided with a slot (31) having the same height as the wire tube (13), and one side of the cover (3) is in contact with the vertical portion of the wire tube (13).

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