Lithium battery assembly with heat dissipation structure

Abstract

The invention provides a lithium battery assembly with a heat dissipation structure, and relates to the field of lithium battery assemblies, the lithium battery assembly comprises a heat dissipation top plate, the bottom of the heat dissipation top plate is fixedly provided with a telescopic ring plate, the middle lower part of the outer side of the telescopic ring plate is sleeved with an annular sleeve plate, and the bottom of the annular sleeve plate is fixedly provided with a heat dissipation bottom plate; heat dissipation assemblies used for heat dissipation are arranged in an inner cavity array of the annular sleeve plate. The heat dissipation assembly comprises transverse shafts arranged in an inner cavity of the annular sleeve plate in an array mode, fixed arc plates are installed on the inner sides of the transverse shafts in an array mode, the tops of the fixed arc plates are fixedly connected with the bottom of the heat dissipation top plate, and second connecting pipes communicated with the heat dissipation bottom plate are arranged at the bottoms of the fixed arc plates. Through the fixed arc plate, the movable arc plate, the heat dissipation top plate and the heat dissipation bottom plate, in the vehicle running process, vibration generated by a vehicle is utilized, the structure is matched, and flowing of cooling liquid in inner cavities of the heat dissipation top plate and the heat dissipation bottom plate is accelerated.

Description

Technical Field

[0001] This invention relates to the field of lithium battery components, and more specifically, to a lithium battery component with a heat dissipation structure. Background Technology

[0002] As the core power source for vehicles such as electric cars, electric trains, and electric bicycles, the performance of power lithium batteries directly affects the operating efficiency and safety of these devices. These batteries achieve efficient conversion between electrical energy and chemical energy through a series of complex chemical reactions, thereby driving the continuous operation of the devices. However, the unique structure of power lithium batteries, especially their electrode arrangement, poses a severe challenge to the thermal management of the batteries. Due to their structural characteristics, existing power lithium batteries are prone to uneven heat distribution during the heat dissipation process, which can easily lead to temperature gradients. Temperature gradients not only affect the uniform distribution of current inside the battery, but may also accelerate the degradation rate of internal materials, resulting in inconsistent battery performance and thus shortening the overall lifespan of power lithium batteries.

[0003] For example, the utility model patent (application number: CN201721620763.1) discloses a "Lithium Battery Module Heat Dissipation Structure and Lithium Battery Module." Its specification states that the power battery is structurally located in a relatively enclosed environment, and the large current generated during operation results in significant heat, directly leading to an increase in battery temperature. This is because of the electrolyte in the lithium battery, which plays a role in charge conduction; a battery without an electrolyte cannot be charged or discharged. Lithium batteries are mostly composed of flammable and volatile non-aqueous solutions. This composition system has higher specific energy and voltage output compared to batteries with aqueous electrolytes, meeting users' higher energy demands. However, because non-aqueous electrolytes are flammable and volatile, they permeate the battery interior, becoming a source of combustion. Therefore, whether it's a lithium battery or a lithium iron phosphate battery, their operating temperature must not exceed 60°C. However, if the outdoor temperature reaches nearly 40°C in summer, coupled with the large amount of heat generated by the battery itself, the operating temperature of the battery will rise. If thermal runaway occurs, the situation will be extremely dangerous. To avoid similar situations from occurring, it is extremely important to ensure proper heat dissipation of the power battery; the aforementioned patents can corroborate the deficiencies in existing technologies.

[0004] Therefore, we have made improvements and proposed a lithium battery assembly with a heat dissipation structure. Summary of the Invention

[0005] The purpose of this invention is to address the issue that existing power lithium batteries, due to their structural characteristics, have difficulty distributing heat evenly during the heat dissipation process, easily forming temperature gradients. These temperature gradients not only affect the uniform distribution of current inside the battery but may also accelerate the degradation rate of internal battery materials, leading to inconsistencies in battery performance and ultimately shortening the overall lifespan of the power lithium battery.

[0006] To achieve the above-mentioned objectives, the present invention provides a lithium battery assembly with a heat dissipation structure to improve the aforementioned problems.

[0007] The application is as follows: It includes a heat dissipation top plate, a telescopic ring plate is fixedly installed at the bottom of the heat dissipation top plate, and an annular sleeve plate is sleeved on the lower middle part of the outer side of the telescopic ring plate. A heat dissipation bottom plate is fixedly installed at the bottom of the annular sleeve plate, and a heat dissipation component for heat dissipation is arrayed in the inner cavity of the annular sleeve plate. The heat dissipation assembly includes a horizontal axis arrayed in the inner cavity of an annular sleeve plate. A fixed arc plate is arrayed on the inner side of the horizontal axis. The top of the fixed arc plate is fixedly connected to the bottom of the heat dissipation top plate. A second connecting pipe communicating with the heat dissipation base plate is provided at the bottom of the fixed arc plate. A movable arc plate is inverted and provided on the inner side of the fixed arc plate. The bottom of the movable arc plate is fixedly connected to the heat dissipation base plate. A first connecting pipe communicating with the heat dissipation top plate is provided at the top of the movable arc plate.

[0008] As a preferred technical solution of this application, the top of the movable arc plate extends into a semi-circular plate, and the semi-circular plate is in sealed contact with the interior of the fixed arc plate. A sealing slider is fixedly installed on the upper middle part of the inner side of the movable arc plate, and a return spring is symmetrically installed at the upper and lower ends of the two sets of sealing sliders.

[0009] As a preferred technical solution of this application, the bottom of the fixed arc plate extends into a semi-circular plate, and the semi-circular plate is in sealed contact with the interior of the movable arc plate. The inner side of the movable arc plate is symmetrically provided with sealing grooves, and the movable arc plate is slidably connected to two sets of sealing sliders through two sets of sealing grooves.

[0010] As a preferred technical solution of this application, heat sinks are evenly distributed on the outer sides of the two sets of horizontal axes on both sides, and sealing vertical blocks are evenly distributed at the bottom of the horizontal axes. The sealing vertical blocks are located at the bottom of the heat sinks, and the sealing vertical blocks are radially arranged and extend through the heat sink base plate to its bottom.

[0011] As a preferred technical solution of this application, the heat sink is provided with pull ropes at intervals on both sides, one end of the pull rope is fixedly connected to the bottom of the horizontal axis, and steering blocks are evenly distributed below the horizontal axis, with the bottom of the steering blocks fixedly connected to the heat sink base plate.

[0012] As a preferred technical solution of this application, the pull rope extends through the top of the steering block to its outer side, and a rotating plate is fixedly installed at the other end of the pull rope.

[0013] As a preferred technical solution of this application, the upper surface of the heat dissipation base plate is uniformly perforated with a connecting groove, and the connecting groove is connected to the second connecting pipe. The middle part of the heat dissipation base plate is uniformly perforated with a bottom groove, and the heat dissipation base plate is sleeved with the sealing vertical block through the bottom groove.

[0014] As a preferred technical solution of this application, the bottom of the annular sleeve plate is connected to both sides of the heat dissipation base plate, the telescopic ring plate has a rectangular array of liquid guiding grooves, the top of the liquid guiding grooves is connected to the top of the heat dissipation top plate, and the bottom of the liquid guiding grooves is connected to the inner cavity of the annular sleeve plate and the heat dissipation base plate.

[0015] As a preferred technical solution of this application, the telescopic ring plate is provided with side grooves evenly on both sides, and the side grooves are located at the top of the annular sleeve plate. The telescopic ring plate is sleeved with the rotating plate through the side grooves.

[0016] As a preferred technical solution of this application, the bottom rectangular array of the telescopic ring plate has baffles, and the baffles are fixedly connected to the inner cavity of the annular sleeve plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. In order to solve the problem that the heat dissipation effect of lithium batteries is poor during use, which easily leads to the damage of lithium batteries, this application realizes air cooling heat dissipation of lithium batteries by setting up heat dissipation components, in conjunction with the convective gas generated during vehicle operation. 2. In order to solve the problem that the heat dissipation method of lithium batteries in the prior art is single and the heat dissipation effect is poor, this application realizes that by setting a fixed arc plate, a movable arc plate, and a heat dissipation top plate and a heat dissipation bottom plate, the vibration generated by the vehicle during the vehicle movement is used in conjunction with the above structure to accelerate the flow of coolant in the inner cavity of the heat dissipation top plate and the heat dissipation bottom plate, thereby achieving better heat conduction and cooling. 3. By using a heat dissipation component in conjunction with a heat dissipation base plate, the lithium battery is protected by vibration during vehicle operation, thus solving the problem in existing technologies where lithium batteries are easily damaged by impacts, leading to fires. Attached Figure Description

[0018] Figure 1 A schematic diagram of a lithium battery assembly with a heat dissipation structure provided in this application; Figure 2 A schematic diagram of the internal structure of a lithium battery assembly with a heat dissipation structure provided in this application; Figure 3A schematic diagram of the surface structure of the heat dissipation base plate of the lithium battery module with heat dissipation structure provided in this application; Figure 4 A schematic diagram of the heat dissipation structure of the lithium battery module provided in this application; Figure 5 A schematic diagram of the horizontal axis connection structure of the lithium battery assembly with heat dissipation structure provided in this application; Figure 6 An exploded view of the connection structure between the fixed arc plate and the movable arc plate of the lithium battery module with heat dissipation structure provided in this application; Figure 7 A cross-sectional view of the fixed arc plate of the lithium battery assembly with heat dissipation structure provided in this application; Figure 8 A schematic diagram of the connection structure of the movable arc plate of the lithium battery module with heat dissipation structure provided in this application; Figure 9 A cross-sectional view of the connection structure of the heat dissipation base plate of the lithium battery module with heat dissipation structure provided in this application; Figure 10 A partial cross-sectional view of the annular sleeve plate of the lithium battery assembly with heat dissipation structure provided in this application.

[0019] The image shows: 1. Top heat dissipation plate; 2. Telescopic ring plate; 3. Annular sleeve plate; 4. Bottom heat dissipation plate; 5. Connecting groove; 6. Bottom groove; 7. Heat dissipation assembly; 701. Horizontal shaft; 702. Heat sink; 703. Sealing vertical block; 704. Diverting block; 705. Pull rope; 706. Fixed arc plate; 707. Movable arc plate; 708. First connecting pipe; 709. Second connecting pipe; 710. Sealing groove; 711. Heat dissipation groove; 712. Sealing slider; 713. Return spring; 8. Side groove; 9. Rotating plate; 10. Liquid guiding groove; 11. Baffle. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0021] As described in the background section, existing power lithium batteries, due to their structural characteristics, make it difficult for heat to be distributed evenly during the heat dissipation process, easily forming temperature gradients. Temperature gradients not only affect the uniform distribution of current inside the battery, but may also accelerate the degradation rate of internal battery materials, leading to inconsistencies in battery performance and thus shortening the overall lifespan of power lithium batteries.

[0022] To address this technical problem, the present invention provides a lithium battery assembly with a heat dissipation structure, which is applied to an adaptive lithium battery heat dissipation assembly.

[0023] For details, please refer to Figures 1-10 The lithium battery assembly with a heat dissipation structure specifically includes a heat dissipation top plate 1, a telescopic ring plate 2 fixedly installed at the bottom of the heat dissipation top plate 1, and an annular sleeve plate 3 sleeved on the lower middle part of the outer side of the telescopic ring plate 2. A heat dissipation bottom plate 4 is fixedly installed at the bottom of the annular sleeve plate 3, and a heat dissipation component 7 for heat dissipation is arrayed in the inner cavity of the annular sleeve plate 3. The heat dissipation assembly 7 includes a horizontal axis 701 arrayed in the inner cavity of the annular sleeve plate 3. A fixed arc plate 706 is arrayed on the inner side of the horizontal axis 701. The top of the fixed arc plate 706 is fixedly connected to the bottom of the heat dissipation top plate 1. A second connecting pipe 709 communicating with the heat dissipation base plate 4 is provided at the bottom of the fixed arc plate 706. A movable arc plate 707 is inverted and arranged on the inner side of the fixed arc plate 706. The bottom of the movable arc plate 707 is fixedly connected to the heat dissipation base plate 4. A first connecting pipe 708 communicating with the heat dissipation top plate 1 is provided at the top of the movable arc plate 707. The movable arc plate 707 and the fixed arc plate 706 fit together and form a cavity therebetween.

[0024] The lithium battery assembly with a heat dissipation structure provided by the present invention, through the setting of a fixed arc plate, a movable arc plate, and a heat dissipation top plate and a heat dissipation bottom plate, realizes that during vehicle operation, the vibration generated by the vehicle, in conjunction with the above structure, can accelerate the flow of coolant in the inner cavity of the heat dissipation top plate and the heat dissipation bottom plate, thereby achieving better heat conduction and cooling.

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the embodiments of the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1, please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A lithium battery assembly with a heat dissipation structure has a semi-circular plate extending from the top of its movable arc plate 707, and the semi-circular plate is in sealed contact with the interior of the fixed arc plate 706. A sealing slider 712 is fixedly installed on the upper middle part of the inner side of the movable arc plate 707, and a return spring 713 is symmetrically installed at the upper and lower ends of the two sets of sealing sliders 712.

[0029] Furthermore, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a semi-circular plate extends from the bottom of the fixed arc plate 706, and the semi-circular plate is in sealed contact with the interior of the movable arc plate 707. The inner side of the movable arc plate 707 is symmetrically provided with sealing grooves 710. The movable arc plate 707 is slidably connected to two sets of sealing sliders 712 through two sets of sealing grooves 710. The return spring 713 is fixedly connected to the interior of the sealing groove 710. The outer side of the movable arc plate 707 has a rectangular array of heat dissipation grooves 711, and the heat dissipation grooves 711 are in communication with the sealing grooves 710. Both the semicircular plate extending from the bottom of the fixed arc plate 706 and the semicircular plate extending from the top of the movable arc plate 707 have their own sealing rings on their outer sides. The fixed arc plate 706 and the movable arc plate 707 are in contact with each other through the semicircular plates, which facilitates the sealing of the cavity formed between them. The sealing slider 712 and the return spring 713, together with the sealing groove 710, facilitate the limiting and resetting of the fixed arc plate 706 and the movable arc plate 707 when they slide against each other.

[0030] Furthermore, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, heat sinks 702 are evenly distributed on the outer sides of the two sets of horizontal shafts 701 on both sides. The heat sinks 702 are inclined and are spaced apart from the fixed arc plate 706. Sealing vertical blocks 703 are evenly distributed at the bottom of the horizontal shafts 701. The sealing vertical blocks 703 are located at the bottom of the heat sinks 702. The sealing vertical blocks 703 are radial and extend through the heat sink base plate 4 to its bottom. The evenly distributed heat sinks 702 facilitate heat conduction and cooling of the bottom of the heat sink top plate 1, and the sealing vertical blocks 703 facilitate sealing of the heat sink bottom plate 4.

[0031] Furthermore, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, pull ropes 705 are provided at intervals on two sections of the heat sink 702. One end of the pull rope 705 is fixedly connected to the bottom of the horizontal shaft 701. Steering blocks 704 are evenly distributed below the horizontal shaft 701, and the bottom of the steering blocks 704 is fixedly connected to the heat sink base plate 4.

[0032] Furthermore, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the pull rope 705 extends through the top of the steering block 704 to its outer side, and the other end of the pull rope 705 is fixedly installed with a rotating plate 9. The pull rope 705 passes through the telescopic ring plate 2 and is fixedly connected to the upper surface of the rotating plate 9. The steering block 704 facilitates the steering of the pull rope 705 and limits the rotation plate 9 through the pull rope 705.

[0033] Example 2 further optimizes the lithium battery component with heat dissipation structure provided in Example 1, specifically, as follows: Figure 3 and Figure 9 As shown, the upper surface of the heat dissipation base plate 4 is uniformly perforated with a connecting groove 5, and the connecting groove 5 is connected to the second connecting pipe 709. The middle part of the heat dissipation base plate 4 is uniformly perforated with a bottom groove 6, and the heat dissipation base plate 4 is sleeved with the sealing vertical block 703 through the bottom groove 6. By sealing the vertical block 703 with the bottom groove 6, the vertical block 703 can be engaged with and disengaged from the bottom groove 6 when the heat dissipation base plate 4 reciprocates, thus facilitating the discharge of gas from the top of the heat dissipation base plate 4.

[0034] Furthermore, such as Figure 9 and Figure 10 As shown, the bottom of the annular sleeve plate 3 is connected to both sides of the heat dissipation base plate 4. The telescopic ring plate 2 has a rectangular array of liquid guiding grooves 10. The top of the liquid guiding grooves 10 is connected to the top of the heat dissipation top plate 1. The bottom of the liquid guiding grooves 10 is connected to the inner cavity of the annular sleeve plate 3 and the heat dissipation base plate 4. The coolant filling the inner cavity of the heat dissipation top plate 1 through the liquid guide groove 10 flows into the inner cavity of the annular sleeve plate 3 through the liquid guide groove 10, and then flows back to the inner cavity of the heat dissipation base plate 4 through the connection between the annular sleeve plate 3 and the heat dissipation base plate 4, thereby realizing the flow of coolant and accelerating the heat dissipation rate.

[0035] Example 3 further optimizes the lithium battery assembly with heat dissipation structure provided in Example 1 or 2, specifically, as follows: Figure 9 and Figure 10As shown, the telescopic ring plate 2 has side grooves 8 evenly distributed on both sides, and the side grooves 8 are located at the top of the annular sleeve plate 3. The telescopic ring plate 2 is sleeved with the rotating plate 9 through the side grooves 8, and the two ends of the rotating plate 9 are connected to the telescopic ring plate 2 through torsion springs. The rotating plate 9 is connected to the telescopic ring plate 2 by a torsion spring, so that the rotating plate 9 is always tilted upward. The side groove 8 is used in conjunction with the tilted rotating plate 9 to guide the airflow generated during the car's operation to the inner cavity of the telescopic ring plate 2, thereby achieving air cooling.

[0036] Furthermore, such as Figure 9 and Figure 10 As shown, the bottom rectangular array of the telescopic ring plate 2 has baffles 11, and the baffles 11 are fixedly connected to the inner cavity of the annular sleeve plate 3. The baffles 11 are located on the other side of the liquid guide groove 10 away from the annular sleeve plate 3 and the heat dissipation base plate 4.

[0037] The lithium battery assembly with heat dissipation structure provided by this invention is used as follows: Airflow cooling: First, the device is installed at the bottom of the lithium battery pack via the heat dissipation top plate 1. When the lithium battery is working, the heat generated by the lithium battery is conducted to the bottom of the heat dissipation top plate 1 through the heat dissipation top plate 1 and the coolant filled in its inner cavity, and is then dissipated through heat dissipation component 7. At this time, the airflow generated when the vehicle is moving flows into the interior of the annular sleeve plate 3 and the heat dissipation bottom plate 4 through the side groove 8, and conducts heat conduction to cool the coolant filled in the inner cavity of the heat dissipation component 7, the heat dissipation top plate 1, the telescopic ring plate 2, the annular sleeve plate 3, and the heat dissipation bottom plate 4. After the air enters the inner cavity of the annular sleeve plate 3, it will also dissipate heat through the heat dissipation groove 711 in conjunction with the sealing slide groove 710 to the inner cavity of the fixed arc plate 706 and the movable arc plate 707, thereby increasing the heat dissipation effect. Vibration buffering: When the vehicle vibrates during driving, the heat dissipation base plate 4 and the annular sleeve plate 3 fixedly installed on its top press the movable arc plate 707 installed on the top array of the heat dissipation base plate 4 upward. As the vehicle vibrates, the heat dissipation base plate 4 and the components fixedly connected to it will also vibrate. During this process, the lithium battery installed at the bottom of the vehicle can be buffered during driving. Vibration cooling: Since both the top heat dissipation plate 1 and the bottom heat dissipation plate 4 are filled with coolant, and the top heat dissipation plate 1 and the bottom heat dissipation plate 4 respectively transport coolant to the inner cavity formed by the movable arc plate 707 and the fixed arc plate 706 through the first connecting pipe 708 and the second connecting pipe 709, thus filling their interiors with coolant, and the top heat dissipation plate 1 also transports coolant to the interior of the annular sleeve plate 3 through the liquid guiding groove 10 opened in the rectangular array on the side wall of the telescopic ring plate 2 installed at its bottom, and the coolant flows back to the interior of the bottom heat dissipation plate 4 through the through-hole between the annular sleeve plate 3 and the bottom heat dissipation plate 4, thus forming a loop. At this time, When the movable arc plate 707 vibrates up and down, it will slide under the limit of the return spring 713 of the sealing slider 712 and the sealing groove 710. During the sliding process, the movable arc plate 707 will push the coolant in the inner cavity of the movable arc plate 707 and the fixed arc plate 706 to slide, thereby accelerating the flow of coolant between the heat dissipation top plate 1 and the heat dissipation bottom plate 4, thereby achieving heat conduction and cooling. During the reciprocating vibration of the heat dissipation bottom plate 4, the sealing vertical block 703 will continuously engage and disengage with the bottom groove 6, thereby achieving gas suction through the bottom groove 6 under repeated vibration, thereby accelerating heat dissipation. Delaying combustion: If the lithium battery catches fire unexpectedly, the device will heat up instantly, reaching temperatures above 200 degrees Celsius. In this state, since the pull rope 705, the first connecting pipe 708, and the second connecting pipe 709 inside the device are all made of PVC flexible tubing, they will melt rapidly under high temperatures. The top of the heat dissipation top plate 1 will burn under open flame. At the moment the pull rope 705 breaks, the rotating plate 9 combines with the side groove 8 under the rebound of the torsion spring, and together with the sealing vertical block 703, seals the cavity between the heat dissipation top plate 1 and the heat dissipation bottom plate 4. Simultaneously, the coolant completely seeps out, thereby delaying the spread of the fire.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A lithium battery assembly with a heat dissipation structure, characterized in that, It includes a heat dissipation top plate (1), a telescopic ring plate (2) is fixedly installed at the bottom of the heat dissipation top plate (1), and an annular sleeve plate (3) is sleeved on the lower middle part of the outer side of the telescopic ring plate (2). A heat dissipation bottom plate (4) is fixedly installed at the bottom of the annular sleeve plate (3), and a heat dissipation component (7) for heat dissipation is arrayed in the inner cavity of the annular sleeve plate (3). The heat dissipation assembly (7) includes a horizontal shaft (701) arrayed in the inner cavity of the annular sleeve plate (3). A fixed arc plate (706) is arrayed on the inner side of the horizontal shaft (701). The top of the fixed arc plate (706) is fixedly connected to the bottom of the heat dissipation top plate (1). A second connecting pipe (709) communicating with the heat dissipation base plate (4) is provided at the bottom of the fixed arc plate (706). A movable arc plate (707) is inverted on the inner side of the fixed arc plate (706). The bottom of the movable arc plate (707) is fixedly connected to the heat dissipation base plate (4). A first connecting pipe (708) communicating with the heat dissipation top plate (1) is provided at the top of the movable arc plate (707).

2. A lithium battery assembly with a heat dissipation structure according to claim 1, characterized in that, The top of the movable arc plate (707) extends into a semi-circular plate, and the semi-circular plate is in sealed contact with the inside of the fixed arc plate (706). A sealing slider (712) is fixedly installed on the upper middle part of the inner side of the movable arc plate (707). Both ends of the two sets of sealing sliders (712) are symmetrically equipped with return springs (713).

3. A lithium battery assembly with a heat dissipation structure according to claim 2, characterized in that, The bottom of the fixed arc plate (706) extends into a semi-circular plate, and the semi-circular plate is in sealed contact with the interior of the movable arc plate (707). The inner side of the movable arc plate (707) is symmetrically provided with sealing grooves (710). The movable arc plate (707) is slidably connected to two sets of sealing sliders (712) through two sets of sealing grooves (710).

4. A lithium battery assembly with a heat dissipation structure according to claim 3, characterized in that, Heat sinks (702) are evenly distributed on the outer sides of the two sets of horizontal axes (701) on both sides. Sealing blocks (703) are evenly distributed at the bottom of the horizontal axes (701), and the sealing blocks (703) are located at the bottom of the heat sinks (702). The sealing blocks (703) are radial and extend through the heat sink base plate (4) to its bottom.

5. A lithium battery assembly with a heat dissipation structure according to claim 4, characterized in that, The heat sink (702) is provided with pull ropes (705) at two intervals. One end of the pull rope (705) is fixedly connected to the bottom of the horizontal shaft (701). The horizontal shaft (701) is evenly distributed with steering blocks (704) below it, and the bottom of the steering blocks (704) is fixedly connected to the heat sink base plate (4).

6. A lithium battery assembly with a heat dissipation structure according to claim 5, characterized in that, The pull rope (705) extends through the top of the steering block (704) to its outer side, and the other end of the pull rope (705) is fixedly mounted with a rotating plate (9).

7. A lithium battery assembly with a heat dissipation structure according to claim 6, characterized in that, The upper surface of the heat dissipation base plate (4) is uniformly perforated with a connecting groove (5), and the connecting groove (5) is connected to the second connecting pipe (709). The middle part of the heat dissipation base plate (4) is uniformly perforated with a bottom groove (6), and the heat dissipation base plate (4) is sleeved with the sealing vertical block (703) through the bottom groove (6).

8. A lithium battery assembly with a heat dissipation structure according to claim 7, characterized in that, The bottom of the annular sleeve plate (3) is connected to both sides of the heat dissipation base plate (4). The telescopic ring plate (2) has a rectangular array of liquid guiding grooves (10). The top of the liquid guiding grooves (10) is connected to the top of the heat dissipation top plate (1). The bottom of the liquid guiding grooves (10) is connected to the inner cavity of the annular sleeve plate (3) and the heat dissipation base plate (4).

9. A lithium battery assembly with a heat dissipation structure according to claim 8, characterized in that, The telescopic ring plate (2) has side grooves (8) evenly distributed on both sides, and the side grooves (8) are located at the top of the annular sleeve plate (3). The telescopic ring plate (2) is sleeved with the rotating plate (9) through the side grooves (8).

10. A lithium battery assembly with a heat dissipation structure according to claim 9, characterized in that, The bottom rectangular array of the telescopic ring plate (2) has baffles (11), and the baffles (11) are fixedly connected to the inner cavity of the annular sleeve plate (3).

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