Efficient heat dissipation structure of lithium battery of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of battery heat dissipation, in particular to an efficient heat dissipation structure of an unmanned aerial vehicle lithium battery, a containing space used for containing the lithium battery is defined by a shell base, a cover plate and an end plate, and a plurality of aluminum nitride ceramic cooling fins are arranged on the outer surfaces of the shell base, the cover plate and the end plate; the lithium battery is placed in the containing space and then makes contact with the inner wall of the shell base, heat generated in the working process of the lithium battery is transmitted to the aluminum nitride ceramic cooling fins through the shell base, and therefore the aluminum nitride ceramic cooling fins can rapidly conduct the heat out, and the heat dissipation holes are formed in the surface of the shell base in a penetrating mode, so that the heat dissipation efficiency is improved. And the heat dissipation effect is further improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery heat dissipation, in particular to an efficient heat dissipation structure of a lithium battery of a unmanned aerial vehicle. BACKGROUND

[0002] With the continuous development of unmanned aerial vehicle technology, the requirements for the endurance and performance stability of the unmanned aerial vehicle are higher and higher. However, the existing lithium battery of the unmanned aerial vehicle often generates a large amount of heat during use, which seriously affects the performance and service life of the battery and may even cause safety accidents if the heat is not dissipated in time. CONTENT OF THE INVENTION

[0003] In order to solve the above technical problems, the application provides an efficient heat dissipation structure of a lithium battery of a unmanned aerial vehicle, which comprises a base, a cover plate and an end plate, the base, the cover plate and the end plate enclose a containing space for placing a lithium battery, a plurality of aluminum nitride ceramic heat dissipation fins are arranged on the outer surfaces of the base, the cover plate and the end plate, and a plurality of heat dissipation holes are arranged on the surface of the base.

[0004] Preferably, the base is composed of a bottom plate and a side plate and is in a U shape, the top of the side plate is embedded in the bottom surface of the cover plate, and the end plate is fixedly connected with the side surface of the bottom plate and the side surface of the cover plate through locking pieces.

[0005] Preferably, a limiting boss is formed below the inner side wall of the side plate, and a limiting groove for embedding the limiting boss is arranged on the bottom surface of the cover plate.

[0006] Preferably, an avoiding groove is formed at the bottom of the bottom plate, and the aluminum nitride ceramic heat dissipation fin is arranged in the avoiding groove.

[0007] Preferably, a limiting boss is formed on the inner surface of the side plate, and a groove is formed on the outer surface of the side plate.

[0008] Preferably, a strip-shaped boss is formed on the top surface of the cover plate.

[0009] Preferably, mounting edges are formed on the two sides of the bottom plate.

[0010] As can be seen from the above, the application can achieve the following beneficial effects: the application encloses a containing space for placing a lithium battery through the base, the cover plate and the end plate, a plurality of aluminum nitride ceramic heat dissipation fins are arranged on the outer surfaces of the base, the cover plate and the end plate, the lithium battery contacts the inner wall of the base after being placed in the containing space, the heat generated by the lithium battery during work is transmitted to the aluminum nitride ceramic heat dissipation fins through the base, so that the aluminum nitride ceramic heat dissipation fins can rapidly conduct the heat away, and a plurality of heat dissipation holes are arranged on the surface of the base, which further improves the heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Fig. 1 This is a side view of the high-efficiency heat dissipation structure of the drone lithium battery according to an embodiment of this application;

[0013] Fig. 2 This is a schematic diagram of the end plate in an embodiment of this application. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0015] Example

[0016] To address the aforementioned technical problems, this embodiment provides a high-efficiency heat dissipation structure for a drone lithium battery, such as... Figs. 1-2 As shown, the device includes a housing base 10, a cover plate 20, and an end plate 30. The housing base 10, cover plate 20, and end plate 30 form a housing space for placing a lithium battery. Several aluminum nitride ceramic heat sinks 40 are provided on the outer surfaces of the housing base 10, cover plate 20, and end plate 30. After the lithium battery is placed in the housing space, it contacts the inner wall of the housing base 10. The heat generated by the lithium battery during operation is transferred to the aluminum nitride ceramic heat sinks 40 through the housing base 10, so that the aluminum nitride ceramic heat sinks 40 can quickly conduct the heat away. Several heat dissipation holes 50 are provided through the surface of the housing base 10 to further improve the heat dissipation effect.

[0017] Specifically, the outer casing base 10 is composed of a base plate 11 and a side plate 12 in a U-shape. The top of the side plate 12 is embedded in the bottom surface of the cover plate 20. The end plates 30 are located at both ends of the side plate 12 and are covered by the cover plate 20. The end plates 30 are fixedly connected to the side of the base plate 11 and the side of the cover plate 20 by locking components, which can be screws, thereby fixing the outer casing base 10, the cover plate 20 and the end plates 30 relatively.

[0018] Further, the top of the side plate 12 is provided with a positioning boss 121, and the bottom surface of the cover plate 20 is provided with a positioning groove 21 for embedding the positioning boss 121. When the cover plate 20 covers the top of the side plate 12, the positioning boss 121 is embedded in the positioning groove 21, thereby achieving positioning cooperation. Then, the end plate 30 is placed on the side surface of the side plate 12, wherein the end plate 30 is provided with a through hole, and then the locking member can pass through the through hole and be threadedly connected with the side plate 12 and the cover plate 20.

[0019] Further, a limiting boss 13 is formed below the inner side wall of the side plate 12. After the lithium battery is placed in the shell base 10, the limiting boss 13 limits the lithium battery, and the limiting boss 13 contacts the two sides of the lithium battery, so that the heat of the lithium battery is transferred to the shell base 10, and then reaches the purpose of rapid heat dissipation through the aluminum nitride ceramic heat sink 40. The shell base 10, the cover plate 20 and the end plate 30 are made of aluminum alloy or copper alloy

[0020] Further, the outer surface of the side plate 12 is provided with a groove 14, which increases the contact area of the side plate 12 with the external air and further improves the heat dissipation effect. Further, the top surface of the cover plate 20 is provided with a strip-shaped boss 22, which increases the contact area of the cover plate 20 with the external air.

[0021] Further, the heat dissipation holes 50 are formed through the side plate 12 and the bottom plate 11, so that the internal heat can be communicated with the external air through the heat dissipation holes 50, thereby improving the heat dissipation effect. The heat dissipation holes 50 of the side plate 12 are formed in the groove 14.

[0022] Further, the bottom plate 11 bears the lithium battery, and the bottom plate 11 is provided with an air avoiding groove. The aluminum nitride ceramic heat sink 40 is installed in the air avoiding groove through screws. The heat of the lithium battery is conducted to the aluminum nitride ceramic heat sink 40 through the bottom plate 11, and the aluminum nitride ceramic heat sink 40 is installed on the outer surfaces of the side plate 12, the cover plate 20 and the end plate 30 through screws, thereby improving the heat dissipation effect.

[0023] Further, the installation edges 15 are formed on both sides of the bottom plate 11. The installation holes 31 are formed in the installation edges 15, so as to fix the shell base 10 on the unmanned aerial vehicle. The wire passing hole 32 is formed in the end plate 30, and the connecting wire of the lithium battery can pass out of the wire passing hole and be connected with the unmanned aerial vehicle.

[0024] In summary, the application is placed in the shell base, cover and end plate to form a containing space for placing lithium batteries, the outer surface of the shell base, cover and end plate is provided with several blocks of aluminum nitride ceramic heat sink, lithium battery in the containing space after contact with the inner wall of the shell base, the heat generated by lithium battery in the working process is transmitted to the aluminum nitride ceramic heat sink through the shell base, so that the aluminum nitride ceramic heat sink can quickly conduct heat away, and the surface of the shell base is provided with a plurality of heat dissipation holes, further improving the heat dissipation effect.

[0025] The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principles of the above-mentioned embodiments shall be included in the protection scope of the technical solution.

Claims

1. A high-efficiency heat dissipation structure for a drone lithium battery, characterized in that: The application relates to a lithium battery heat dissipation device, which comprises a base (10), a cover plate (20) and an end plate (30), the base (10), the cover plate (20) and the end plate (30) form a containing space for placing lithium batteries, a plurality of aluminum nitride ceramic heat dissipation fins (40) are arranged on the outer surfaces of the base (10), the cover plate (20) and the end plate (30), and a plurality of heat dissipation holes (50) are arranged on the surface of the base (10).

2. The efficient heat dissipation structure of the unmanned aerial vehicle lithium battery according to claim 1, characterized in that: The base (10) is composed of a bottom plate (11) and a side plate (12) and is in a U shape, the top of the side plate (12) is embedded in the bottom surface of the cover plate (20), and the end plate (30) is fixedly connected with the side surface of the bottom plate (11) and the side surface of the cover plate (20) through locking members. 3.The high-efficiency heat dissipation structure of the unmanned aerial vehicle lithium battery of claim 2, characterized in that: The top of the side plate (12) is provided with a positioning boss (121), and the bottom surface of the cover plate (20) is provided with a positioning groove (21) for embedding the positioning boss (121).

4. The efficient heat dissipation structure of the unmanned aerial vehicle lithium battery according to claim 2, characterized in that: The bottom plate (11) is provided with an emptying groove at the bottom, and the aluminum nitride ceramic heat dissipation fin (40) is arranged in the emptying groove.

5. The efficient heat dissipation structure of the unmanned aerial vehicle lithium battery according to claim 2, characterized in that: The inner side wall of the side plate (12) is provided with a limiting boss (13) at the bottom, and the outer surface of the side plate (12) is provided with a groove (14). 6.The high-efficiency heat dissipation structure of a UAV lithium battery of claim 1, wherein: The top surface of the cover plate (20) is provided with a strip-shaped boss (22). 7.The high-efficiency heat dissipation structure of the unmanned aerial vehicle lithium battery of claim 2, characterized in that: The two sides of the bottom plate (11) are provided with mounting edges (15).

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