Light large-electric-quantity unmanned aerial vehicle battery pack

Abstract

The battery pack comprises a heat dissipation shell, supporting rods are arranged at the four corners in the heat dissipation shell, rectangular connecting frames are evenly distributed between the supporting rods, and first circuit switching blocks are arranged at the four corners of the inner surfaces of the rectangular connecting frames; mounting seats are uniformly distributed between the adjacent first circuit switching blocks, mounting cavities are formed in the middles of the upper and lower surfaces of the mounting seats, expansion rings are arranged at the upper ends of the mounting cavities, accommodating cavities are formed in the sides, close to the rectangular connecting frame, of the mounting cavities, and lightening holes are formed in the ends, close to the rectangular connecting frame, of the accommodating cavities; supporting holes are formed in the front end and the rear end of the containing cavity. By arranging the mounting seat, the battery core is stably fixed, so that the battery core is prevented from shifting or even losing efficacy caused by vibration or collision of the unmanned aerial vehicle in the flying process, and a single damaged battery core is convenient to replace; and by arranging the heat dissipation shell, protection is achieved, and the heat dissipation effect in the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle battery packs, and in particular to a light and large-capacity unmanned aerial vehicle battery pack. Background Art

[0002] Drone-related technologies are developing rapidly at home and abroad, and they play an important role in police, urban management, agriculture, geology, meteorology, electricity, disaster relief, video shooting and other fields. There is a risk of collision during the flight of drones. The battery pack is at high risk of damage during the collision, and the economic pressure of replacement is high. If a damaged battery block in the battery pack can be replaced, the economic loss can be greatly reduced. Therefore, we designed a lightweight and large-capacity drone battery pack.

[0003] Patent number CN202223276278.0 is a Chinese utility model patent, which discloses a simple disassembly and assembly of a drone battery pack, including a plurality of battery cell groups connected in series, the battery cell group includes a plurality of cylindrical battery cells that are stacked and not in contact with each other, the cylindrical battery cells in the battery cell group are connected in parallel, battery cell holders are provided at both ends of the battery cell group, the battery cell holders are provided with battery cell slots for accommodating the cylindrical battery cells, the battery cell holders are provided with nickel sheets electrically connected to the cylindrical battery cells, the battery cell holders include middle battery cell holders and end battery cell holders, the middle battery cell holders are arranged between adjacent battery cell groups, and the two ends are provided with battery cell holders. The battery cell holders are respectively arranged on the outside of the battery cell groups at the two ends, and the battery cell holders are provided with more than two through holes, through which screws connected in series with the battery cell holders pass, and a clamping nut is screwed on the screw, and a through hole for the screw to pass through is provided on the nickel sheet; the welding step is omitted in this utility model, which reduces the complexity of the battery pack structure and makes the assembly and disassembly process more convenient, but the device has the following problems: the fixation of a pair of battery cell groups is poor, and position displacement is easy to occur during the vibration of the UAV flight; secondly, there is no external protection for the battery pack, and it is more likely to be damaged in the event of a UAV collision. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and to solve the technical problems of the existing UAVs having the risk of collision during flight, the high risk of damage to the battery pack during collision, the great economic pressure of replacement and the poor heat dissipation effect by providing a mounting seat, a No. 2 circuit adapter block, a No. 1 circuit adapter block and a heat dissipation shell.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lightweight, high-capacity drone battery pack comprises a heat dissipation shell, wherein support rods are provided at the four inner corners of the heat dissipation shell, rectangular connecting frames are evenly distributed between the support rods, circuit adapter blocks No. 1 are provided at the four inner corners of the rectangular connecting frame, mounting seats are evenly distributed between adjacent circuit adapter blocks No. 1, mounting cavities are provided in the middle of the upper and lower surfaces of the mounting seats, an expansion ring is provided at the upper end of the mounting cavity, a receiving cavity is provided on one side of the mounting cavity close to the rectangular connecting frame, a weight-reducing hole is provided at one end of the receiving cavity close to the rectangular connecting frame, and support holes are provided at the front and rear ends of the receiving cavity.

[0007] As a preference, an elastic member is provided in the installation cavity, and the elastic member comprises an arc-shaped plate, and plug-in plates are provided on the left and right sides of the arc-shaped plate.

[0008] As a preference, the plug board is plugged into the hole of the support hole, and the thickness of the plug board is smaller than the height of the support hole.

[0009] As a preference, a No. 2 circuit adapter block is provided between adjacent mounting seats, and No. 2 contacts are provided at both ends of the No. 2 circuit adapter block close to the mounting seat, and No. 1 contacts are provided at both ends of the No. 1 circuit adapter block close to the mounting seat.

[0010] Preferably, the heat dissipation housing comprises a heat-conducting insulating substrate, the inner surface of the heat-conducting insulating substrate is fixedly connected to a support rod, the outer surface of the heat-conducting insulating substrate is connected to a corrosion-resistant metal plate, and the outer surface edges of the corrosion-resistant metal plate are provided with overhead bars.

[0011] Preferably, the adjacent overhead bars are connected at their ends, silicone heat sinks are provided between the overhead bars, and the outside of the overhead bars is covered with a protective shell, and the outer surface of the protective shell is provided with heat dissipation grooves.

[0012] Beneficial effects of the utility model:

[0013] (1) In the utility model, a mounting seat is provided to stabilize and fix the battery core, thereby preventing the battery core from shifting due to vibration or collision during the flight of the drone, resulting in battery pack failure. It is also convenient to replace a single damaged battery core. During installation, the battery core only needs to be inserted into the mounting cavity, so that the elastic member is compressed and deformed to tightly hold the battery core.

[0014] (2) In the utility model, by providing a No. 2 circuit adapter block and a No. 1 circuit adapter block, when the battery core is inserted into the installation cavity, the elastic member is compressed and deformed, so that the plug-in board extends out of the support hole, and the plug-in board contacts the No. 2 contact or the No. 1 contact, thereby connecting the battery cores on the same layer in series, which is simple and convenient and facilitates circuit maintenance.

[0015] (3) In the present invention, the heat dissipation housing is provided, which, on the one hand, plays a protective role to reduce the damage caused by collision during the flight of the UAV, and on the other hand, increases the heat dissipation effect inside the battery pack to prevent the internal temperature from being too high and affecting the power supply effect.

[0016] In summary, the utility model has the advantages of simple structure, easy maintenance and replacement, and partial replacement, and is particularly suitable for the field of drone battery pack technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments 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 creative work.

[0018] Figure 1 This is a schematic diagram of the cross-section structure of a lightweight, high-capacity UAV battery pack.

[0019] Figure 2 It is a schematic diagram of the cross-section structure of the mounting seat part.

[0020] Figure 3 It is a schematic diagram of the structure of the No. 1 circuit transfer block part and the No. 2 circuit transfer block part.

[0021] Figure 4 It is a schematic cross-sectional view of the heat dissipation housing. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0023] Embodiment 1

[0024] like Figures 1 to 4As shown, the utility model provides a lightweight large-capacity UAV battery pack, including a heat dissipation shell 1, which plays a protective role on the one hand to reduce the damage caused by collision during the flight of the UAV, and on the other hand to increase the heat dissipation effect inside the battery pack to prevent the internal temperature from being too high and affecting the power supply effect. An inspection door is provided at the upper end of the heat dissipation shell 1, which can be opened to inspect the inside. Support rods 2 are provided at the four corners of the heat dissipation shell 1, and rectangular connecting frames 3 are evenly distributed between the support rods 2 to form a supporting and protective space with the support rods 2 to provide an installation space for the mounting seat 4. A No. 1 circuit adapter block 31 is provided at the four corners of the inner surface of the rectangular connecting frame 3, and the No. 1 circuit adapter blocks 31 at the left front position are connected in parallel so that the circuit adapter blocks 3 on adjacent rectangular connecting frames 3 can be connected to each other. The battery cells are connected in parallel to increase the total capacity of the battery pack and extend the service life of the electrical appliance. The mounting seats 4 are evenly distributed between adjacent No. 1 circuit adapter blocks 31. A mounting cavity 41 is provided in the middle of the upper and lower surfaces of the mounting seat 4 for plugging in the battery cell. An expansion ring 42 is provided at the upper end of the mounting cavity 41 to increase the starting plug-in space of the battery cell and make it more convenient to plug in downward. A accommodating cavity 46 is provided on the side of the mounting cavity 41 close to the rectangular connecting frame 3 to provide a accommodating and deformation space for the arc plate 451. A weight-reducing hole 43 is provided on the end of the accommodating cavity 46 close to the rectangular connecting frame 3 to reduce the weight of the mounting seat 4, thereby reducing the weight of the overall battery pack. Support holes 44 are provided at the front and rear ends of the accommodating cavity 46 to accommodate the plug-in board 452 and provide deformation space.

[0025] Further, if Figure 2 As shown, an elastic member 45 is provided in the installation cavity 41, which is a metal elastic member. The battery core is in contact with the elastic member 45, so that the two are electrically connected. The elastic member 45 includes an arc plate 451. The arc plate 451 protrudes vertically at the upper end of the accommodating cavity 46 in a relaxed state. When the battery core is plugged into the installation cavity 41, the arc plate 451 is squeezed and deformed and hidden in the accommodating cavity 46. Plug-in plates 452 are provided on the left and right sides of the arc plate 451. When the arc plate 451 is in a relaxed state, the plug-in plates 452 are completely received in the supporting hole 44. When the arc plate 451 is squeezed and deformed, the plug-in plates 452 extend out of the supporting hole 44, thereby contacting the second contact 51 and the first contact 32, so that the battery cores located on the same rectangular connecting frame 3 are connected in series, which is convenient for maintenance.

[0026] Furthermore, the plug-in board 452 is plugged into the hole of the support hole 44 , and the thickness of the plug-in board 452 is smaller than the height of the support hole 44 , so that the plug-in board has sufficient deformation space when it is squeezed and deformed.

[0027] Further, if Figure 3As shown, a No. 2 circuit adapter block 5 is provided between adjacent mounting seats 4, providing a basis for the battery cells located on the same rectangular connecting frame 3 to form a series connection, and No. 2 contacts 51 are provided at both ends of the No. 2 circuit adapter block 5 close to the mounting seat 4, and No. 1 contacts 32 are provided at both ends of the No. 1 circuit adapter block 31 close to the mounting seat 4. The No. 1 contact 32 has the same structure as the No. 2 contact 51, which is convenient for connecting the circuit.

[0028] Further, if Figure 4 As shown, the heat dissipation shell 1 includes a heat-conducting insulating substrate 11, the inner surface of which is fixedly connected to the support rod 2. The heat-conducting insulating substrate 11 can be made of ceramics or silicone rubber, fluoroplastic film and other materials, which plays the role of insulation and heat conduction, and increases the safety of electricity use. The outer surface of the heat-conducting insulating substrate 11 is connected to the anti-corrosion metal plate 12, which is made of aluminum alloy, is light in weight and has good corrosion resistance. The outer surface edges of the anti-corrosion metal plate 12 are provided with overhead bars 13, so that six cavities are formed between the anti-corrosion metal plate 12 and the protective shell 15, providing installation space for the silicone heat sink 14.

[0029] Furthermore, the adjacent overhead bars 13 are connected at their ends, and silicone heat sinks 14 are provided between the overhead bars 13 to reduce contact thermal resistance and enhance heat transfer at the contact interface. The exterior of the overhead bars 13 is covered with a protective shell 15, and the outer surface of the protective shell 15 is provided with heat dissipation grooves 16 to increase the heat dissipation area of ​​the surface of the protective shell 15.

[0030] Working process: First, the support rod 2 is fixedly connected with the rectangular connecting frame 3 to form a hollow support frame, and the No. 1 circuit adapter block 31 is installed at each right angle position, and the No. 1 circuit adapter block 31 on the left front side is routed from the inside of the support rod 2 and connected in parallel; further, the mounting seat 4 and the No. 2 circuit adapter block 5 are installed on the inner surface of each rectangular connecting frame 3, and the two are staggered; further, the battery core is inserted into the installation cavity 41, so that the arc plate 451 is squeezed and deformed and hidden in the accommodating cavity 46, so that the insertion The connecting plate 452 extends out of the supporting hole 44, thereby contacting the second contact 51 and the first contact 32, so that the battery cells located on the same rectangular connecting frame 3 are connected in series; further, the heat-conducting insulating substrate 11 is fixed to the outer surface of the supporting rod 2 and the rectangular connecting frame 3, and then the anti-corrosion metal plate 12 is installed on its outer surface; further, the overhead bar 13 is installed on the edge position of the outer surface of the anti-corrosion metal plate 12, and the silicone heat sink 14 is attached between the overhead bars 13, and then the protective shell 15 is covered to complete the installation.

[0031] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0032] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lightweight, high-capacity UAV battery pack, characterized by: The invention comprises a heat dissipation shell (1), wherein support rods (2) are provided at the four corners of the heat dissipation shell (1), rectangular connecting frames (3) are evenly distributed between the support rods (2), circuit adapter blocks (31) are provided at the four corners of the inner surface of the rectangular connecting frame (3), mounting seats (4) are evenly distributed between adjacent circuit adapter blocks (31), mounting cavities (41) are provided in the middle of the upper and lower surfaces of the mounting seats (4), an expansion ring (42) is provided at the upper end of the mounting cavity (41), and a receiving cavity (46) is provided on one side of the mounting cavity (41) close to the rectangular connecting frame (3), a weight reduction hole (43) is provided on one end of the receiving cavity (46) close to the rectangular connecting frame (3), and support holes (44) are provided at the front and rear ends of the receiving cavity (46).

2. A lightweight, high-capacity UAV battery pack according to claim 1, characterized in that: An elastic member (45) is arranged in the installation cavity (41), and the elastic member (45) comprises an arc-shaped plate (451). Connecting plates (452) are arranged on the left and right sides of the arc-shaped plate (451).

3. A lightweight, high-capacity UAV battery pack according to claim 2, characterized in that: The plug-in board (452) is plugged into the hole of the support hole (44), and the thickness of the plug-in board (452) is smaller than the height of the support hole (44).

4. A lightweight, high-capacity UAV battery pack according to claim 1, characterized in that: A No. 2 circuit transfer block (5) is provided between adjacent mounting seats (4), and No. 2 contacts (51) are provided at both ends of the No. 2 circuit transfer block (5) close to the mounting seat (4), and No. 1 contacts (32) are provided at both ends of the No. 1 circuit transfer block (31) close to the mounting seat (4).

5. A lightweight and high-capacity UAV battery pack according to claim 1, characterized in that: The heat dissipation housing (1) comprises a heat-conducting insulating substrate (11), the inner surface of the heat-conducting insulating substrate (11) is fixedly connected to a support rod (2), the outer surface of the heat-conducting insulating substrate (11) is connected to an anti-corrosion metal plate (12), and the outer surface edges of the anti-corrosion metal plate (12) are all provided with overhead bars (13).

6. A lightweight, high-capacity UAV battery pack according to claim 5, characterized in that: Adjacent overhead bars (13) are connected at the ends, silicone heat sinks (14) are provided between the overhead bars (13), and the outside of the overhead bars (13) is covered with a protective shell (15), and the outer surface of the protective shell (15) is provided with a heat dissipation groove (16).

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