CN205738119U - A kind of cooling system for unmanned plane and unmanned plane - Google Patents

Abstract

A heat dissipation system for an unmanned aerial vehicle, which includes a heat conduction device and a heat dissipation device, the heat conduction device includes a heat pipe for transferring heat from a heat source, one end of the heat pipe is connected to the heat dissipation device; the heat conduction device is interposed between the heat source and the heat dissipation device In between, the cooling device is located on one side of the cooling system. An unmanned aerial vehicle, which is equipped with the above-mentioned cooling system for the unmanned aerial vehicle. The heat pipe improves the heat transfer speed of the heat conduction device, thereby increasing the heat dissipation speed of the heat dissipation device, and the heat dissipation fan makes the air around the radiator flow forcibly, thereby improving the heat dissipation efficiency of the heat dissipation device.

Description

A cooling system for unmanned aerial vehicle and unmanned aerial vehicle

technical field

The utility model relates to the field of radiators, in particular to a cooling system for unmanned aerial vehicles and an unmanned aerial vehicle.

Background technique

Existing heat dissipation devices for drones usually include a shield and a radiator connected to the shield. The disadvantage is that only relying on the passive heat dissipation of the radiator cannot quickly and effectively reduce the heat emitted by the heat source.

Utility model content

The purpose of the utility model is to provide a cooling system for the drone, which can quickly and effectively reduce the heat emitted by the heat source.

Another object of the present invention is to provide an unmanned aerial vehicle using the cooling system.

Embodiments of the utility model are achieved in that:

A heat dissipation system for an unmanned aerial vehicle, which includes a heat conduction device and a heat dissipation device, the heat conduction device includes a heat pipe for transferring heat from a heat source, one end of the heat pipe is connected to the heat dissipation device; the heat conduction device is interposed between the heat source and the heat dissipation device In between, the cooling device is located on one side of the cooling system.

In a preferred embodiment of the present invention, the heat dissipation device for the heat dissipation system of the drone includes a heat sink and a heat dissipation fan, the heat pipe is connected to the heat sink, and the heat dissipation fan is arranged on one side of the heat sink.

In a preferred embodiment of the present invention, the heat conduction device for the heat dissipation system of the drone further includes a shielding cover, the shielding cover includes a cover body, the cover body has an outer surface and an inner surface, and the heat pipe is connected to the outer surface of the cover body. at least one of the surface and the interior surface.

In a preferred embodiment of the present invention, the heat pipes of the heat dissipation system for the drone are connected to the outer surface of the cover.

In a preferred embodiment of the present invention, the above-mentioned shielding cover for the heat dissipation system of the drone further includes a shielding side wall connected to the cover body, the shielding side wall is provided with a heat pipe installation hole, and the heat pipe is passed through the heat pipe installation hole and attached to the inner surface.

In a preferred embodiment of the present invention, the shield body of the above-mentioned shielding cover for the heat dissipation system of the drone is provided with a plurality of heat dissipation holes penetrating the outer surface and the inner surface.

In a preferred embodiment of the present invention, the above-mentioned heat conduction device for the heat dissipation system of the drone further includes a heat conduction medium, and the heat conduction medium is arranged on the inner surface side of the cover.

In a preferred embodiment of the present invention, the above-mentioned heat dissipation system for the heat dissipation system of the drone also includes a mounting frame, the shielding cover is fastened to the mounting frame, the mounting frame is provided with an opening, and the heat-conducting medium is exposed from the opening and the cover body contact with the inner surface.

An unmanned aerial vehicle, which is equipped with the above-mentioned cooling system for the unmanned aerial vehicle.

The beneficial effect of the embodiment of the utility model is: the heat dissipation system for the drone includes a heat conduction device and a heat dissipation device, the heat conduction device includes a heat pipe and a shielding cover, one end of the heat pipe is connected with a heat dissipation device, and the other end of the heat pipe is connected to the shielding cover, The heat pipe improves the heat transfer speed of the heat conduction device, thereby increasing the heat dissipation speed of the heat sink; in addition, the cooling fan makes the air around the radiator flow forcibly, which makes the circulation of hot air and cold air around the radiator faster, and improves the cooling performance of the radiator. The cooling efficiency of the cooling device of the drone.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 is the disassembled three-dimensional schematic diagram of the first embodiment of the cooling system of the utility model for the unmanned aerial vehicle;

Fig. 2 is the three-dimensional schematic view of the first embodiment of the utility model for the cooling system of the drone;

Fig. 3 is the side schematic diagram of the heat pipe and the shielding cover of the first embodiment of the heat dissipation system of the utility model for the drone;

Fig. 4 is the disassembled three-dimensional schematic diagram of the second embodiment of the cooling system of the utility model for the drone;

Fig. 5 is a schematic side view of the second embodiment of the cooling system for drones of the present invention.

In the picture:

Heat dissipation system 100 for drones, heat conduction device 200, heat pipe 300, first section 310, second section 320, shielding cover 400, cover body 410, outer surface 411, inner surface 412, shielding side wall 420, heat conducting medium 500, the first heat conduction medium 510, the second heat conduction medium 520, the third heat conduction medium 530, the heat dissipation device 600, the heat sink 610, the heat dissipation fins 611, the connector 612, the heat dissipation fan 620, the installation frame 800, and the installation main wall 810, Install the side wall 820 , the opening 830 , the first opening 831 , the second opening 832 , the cooling system 900 for the drone, the heat pipe installation hole 910 , and the second connecting piece 920 .

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used. It is only for the convenience of describing the utility model and simplifying the description, rather than Any indication or implication that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

first embodiment

Please refer to FIG. 1 to FIG. 3 , the present embodiment provides a heat dissipation system 100 for an unmanned aerial vehicle, which includes a heat conduction device 200 and a heat dissipation device 600 connected to the heat conduction device 200 , the heat conduction device 200 is interposed between the heat source and the heat dissipation device 600 Between, the cooling device 600 is located at one side of the cooling system 100 for the drone.

The heat conduction device 200 includes a heat pipe 300 , a shield 400 and a heat conduction medium 500 . The heat pipe 300 is connected to the shield 400 , and the heat conduction medium 500 is disposed between the heat source (not shown) and the shield 400 . In this specification, the heat source is the chip.

Specifically, the heat pipe 300 generally includes a tube shell (not shown), a liquid-absorbing core (not shown) and an end cap (not shown). The inside of the heat pipe 300 is pumped into a negative pressure state and filled with an appropriate liquid, which has a low boiling point and is easy to volatilize. The pipe wall of the heat pipe 300 has a liquid-absorbing wick made of capillary porous material. One end of the heat pipe 300 is the evaporation end, and the other end is the condensation end. When one end of the heat pipe 300 is heated, the liquid in the capillary tube vaporizes rapidly, and the vapor flows to the other end under the power of thermal diffusion, and condenses at the condensation end to release heat. Flow back to the evaporating end along the porous material by capillary action, and continue to circulate until the temperature at both ends of the heat pipe 300 is equal. The phase change process of the medium evaporating at the evaporating end and then condensing at the condensing end is used to conduct heat quickly.

In this embodiment, the heat pipe 300 is a heat-conducting copper pipe. The heat pipe 300 improves the heat transfer speed, thereby improving the heat dissipation efficiency of the heat dissipation system 100 for the drone. In other embodiments, the heat pipe 300 with a thermal slag structure, a groove structure or multiple metal meshes can be used.

In this embodiment, the heat pipe 300 is a curved tubular part. The heat pipe 300 includes a first section 310 and a second section 320 connected to the first section 310. The first section 310 and the second section 320 are not on the same plane. The first section There is a certain included angle between 310 and the second section 320 , that is, the first section 310 is obliquely connected to the second section 320 . In other embodiments, the shape of the heat pipe 300 may vary according to actual conditions. In one example, the first section 310 and the second section 320 of the heat pipe 300 may be on a plane, that is, the heat pipe 300 is a straight pipe. In another example, the heat pipe 300 may be bent more than two times to fit a specific installation space.

The quantity and installation positions of the heat pipes 300 can be selected according to the heat of the heat source and the heat dissipation efficiency. In this embodiment, the cooling system 100 for the drone includes two heat pipes 300 , and the two heat pipes 300 are respectively connected to the shield 400 . In other embodiments, the heat pipe 300 may be connected to the middle of the shield 400 or other locations. In other embodiments, the heat dissipation system 100 for the drone may select one or more than two heat pipes 300 as required.

The shielding case 400 includes a shielding body 410 and a shielding sidewall 420 connected to the shielding body 410 , and the shielding sidewall 420 is used to support the shielding body 410 .

The cover body 410 is provided with heat dissipation holes (not shown in the figure) for heat dissipation, and the heat dissipation holes are through holes passing through the outer surface 411 and the inner surface 412 . The cover body 410 includes an outer surface 411 and an inner surface 412 opposite to the outer surface 411 . In this embodiment, the heat pipe 300 is connected to the outer surface 411 of the cover 410 , that is, the heat pipe 300 is placed outside, and one end of the heat pipe 300 is flush with one end of the shield 400 . The two heat pipes 300 are respectively connected to two sides of the outer surface 411 , and the heat pipes 300 can be connected to the outer surface 411 of the cover 410 by bonding, welding, riveting, screwing or other fasteners.

The shielding side wall 420 defines mounting holes for mounting fasteners. The shielding case 400 includes at least two shielding sidewalls 420 . In this embodiment, the shielding case 400 includes six shielding sidewalls 420 , and the six shielding sidewalls 420 are connected to the housing body 410 and jointly form an accommodating space for installing other components. It should be understood that the number of shielding side walls 420 can be changed according to actual conditions. In the embodiment in which the shape of the shielding case 400 is a cuboid, the shielding case 400 includes at least two shielding side walls 420 to support the shielding case 400; In embodiments with other shapes, the number of shielding sidewalls 420 can be selected according to the shape of the shielding case and actual needs, for example, the number of shielding sidewalls 420 can be four, six, eight or other numbers.

Based on the above, the heat conduction medium 500 is disposed on the side of the inner surface 412 of the cover 410 . One side of the heat conduction medium 500 is in contact with the inner surface 412 of the cover 410 , and the other surface of the heat conduction medium 500 is in contact with the heat source, that is, the heat conduction medium 500 is located between the heat source and the shield 400 . The heat conduction medium 500 eliminates the air between the heat source and the shield 400 , plays a role of heat conduction, and forms a good heat conduction path between the heat source and the shield 400 . The heat-conducting medium 500 becomes semi-fluid after being heated to a certain state, which fully fills the gap between the heat source and the shield 400 , making the connection between the heat source and the shield 400 tighter, thereby enhancing heat conduction. For example, the heat-conducting medium 500 may be heat-conducting silicone grease, heat-conducting silica gel, graphite gasket, heat-conducting plastic, heat-conducting double-sided tape, phase-change heat-conducting material, or a copper sheet coated with silicon grease.

Thermally conductive silicone grease uses silicone oil as raw material and adds fillers such as thickeners. It is an ester-like substance formed after heating, decompression, grinding and other processes. Thermally conductive silicone grease has a certain viscosity without obvious graininess. The working temperature of thermal conductive silicone grease is generally -50°C to 180°C. It has good thermal conductivity, high temperature resistance, aging resistance and waterproof characteristics. Thermally conductive silica gel is also made by adding certain chemical raw materials to silicone oil and chemically processing it. There is some viscous substance in the chemical raw materials it adds, so the finished thermal silica gel has a certain adhesive force. The biggest feature of thermally conductive silicone is that it is hard after solidification, and its thermal conductivity is slightly lower than that of thermally conductive silicone grease.

The shape of the heat conduction medium 500 can be selected according to needs. In this embodiment, the shape of the heat conducting medium 500 is a cuboid. In other embodiments, the shape of the heat conducting medium 500 may be a cylinder, a truncated cone, a truncated prism or other shapes. The number of heat conducting media 500 is selected according to the number of components generating heat sources. In this embodiment, the heat conduction medium 500 includes a first heat conduction medium 510 in contact with the first heat source, a second heat conduction medium 520 in contact with the second heat source, and a third heat conduction medium 530 in contact with the third heat source, so that the first heat conduction medium The medium 510 , the second heat conduction medium 520 and the third heat conduction medium 530 transfer the heat generated by the first heat source, the second heat source and the third heat source to the shielding case 400 respectively.

It is worth mentioning that, in other embodiments, the heat conduction device 200 may only include the heat pipe 300 and the shield 400 , that is, the heat conduction device 200 does not include the heat conduction medium 500 .

The heat dissipation device 600 includes a heat dissipation fan 620 and a radiator 610 for dissipating heat from the heat conduction device 200. The radiator 610 is connected to the heat pipe 300. The heat dissipation fan 620 is arranged on one side of the heat pipe 300 and is spaced apart from the radiator 610. 620 is mounted on other components or other devices.

In this embodiment, the heat sink 610 is connected to the second section 320 of the heat pipe 300. The heat sink 610 includes a body (not shown), heat dissipation fins 611 and connectors 612, and the heat dissipation fins 611 and connectors 612 are respectively arranged on On the body, the connector 612 has mounting holes for mounting fasteners. The heat sink 610 can be made of silver, copper, aluminum, aluminum alloy, steel or other materials with thermal conductivity.

In other embodiments, the heat sink 610 may be disposed on the first section 310 of the heat pipe 300 , or the heat sink 610 may be disposed at other positions of the heat pipe 300 as required. The heat sink 610 may be connected to the heat pipe 300 by bonding, welding, riveting, screwing, or by other fasteners.

In this embodiment, the cooling fan 620 is arranged on one side of the radiator 610 , that is, the cooling fan 620 is arranged on one side of the second section 320 of the heat pipe 300 , so that the heat pipe 300 can be installed according to the installation space of the heat pipe 300 . The heat dissipation fan 620 is installed on other components or devices (not shown in the figure), and the heat dissipation fan 620 is opposite to the heat sink 610 and spaced between the heat dissipation fan 620 and the heat sink 610 . It is worth mentioning that, in other embodiments, the cooling system 100 for the drone may not have the cooling fan 620 .

In this embodiment, the cooling system 100 for the drone further includes a mounting frame 800 .

The mounting frame 800 includes a mounting main wall 810 and a mounting side wall 820 connected to the mounting main wall 810 .

The installation main wall 810 is provided with an opening 830 for placing the heat conducting medium 500 , so that the heat conducting medium 500 is exposed from the opening 830 and contacts the inner surface 412 of the shielding cover 400 . The shape of the opening 830 is consistent with the shape of the heat conducting medium 500 . In this embodiment, the opening 830 includes a first opening 831 matching the first heat conducting medium 510 and the second heat conducting medium 520 , and a second opening 832 matching the third heat conducting medium 530 . It is worth mentioning that the mounting frame 800 may not have the opening 830, one side of the heat conducting medium 500 is in contact with the heat source and the other side of the heat conducting medium 500 is in contact with the mounting frame 800, the heat conducting medium 500 transmits heat to the mounting frame 800, and the mounting frame 800 The heat is then transferred to the shield 400 . It should be understood that the installation frame 800 has a shielding function and a heat conduction function.

The number of sidewalls 820 can be selected according to needs. In this embodiment, the installation frame 800 includes four installation side walls 820 , and these four installation side walls 820 are connected with the installation main wall 810 to jointly form an accommodating space for placing the heat-conducting medium 500 .

In this embodiment, the mounting frame 800 is connected to other components, and then the shielding case 400 is installed on the mounting frame 800, and the shielding case 400 is directly fastened on the mounting frame 800 and then connected by fasteners, which facilitates the installation of the shielding case 400 and disassembly. In other embodiments, the shield 400 may be connected to the mounting bracket 800 by bonding, welding, riveting, screwing, or by other fasteners.

It is worth mentioning that, in other embodiments, the heat dissipation system 100 for the drone may not include the mounting frame 800, the shielding cover 400 may be installed on other components (not shown), and one side of the heat conducting medium 500 is connected to the heat source. The other side of the thermally conductive medium 500 is in contact with the shielding case 400 .

The working principle of the heat dissipation system 100 for the drone is to transfer the heat from the heat source to the heat dissipation device 600 through the heat conduction device 200 , and dissipate the heat into the air through the heat dissipation device 600 . In this embodiment, the heat transfer path of the heat conduction device 200 is that the heat conduction medium 500 transmits the heat of the heat source to the shield 400, the shield 400 itself dissipates some heat, and the shield 400 transmits the remaining heat to the heat pipe 300, and the heat pipe 300 Heat exchange occurs with the radiator 610, which dissipates the heat into the air. In the embodiment where the heat conducting device 200 does not include the heat conducting medium 500, the heat source transmits heat to the shield 400 through the air, and the shield 400 transmits heat to the radiator 610 through the heat pipe 300, and the radiator 610 transmits heat to the air.

In this embodiment, the cooling speed of the radiator 610 is further accelerated by the cooling fan 620 . When the heat dissipation fan 620 works, the air near the radiator 610 is forced to flow, thereby accelerating the heat dissipation speed of the radiator 610, so that the radiator 610 itself is forced to dissipate heat through the fan while passively dissipating heat, and the heat passes through the body of the housing (not shown). Vent holes (not shown) vent air.

second embodiment

Please refer to Fig. 4 to Fig. 5, this embodiment provides a cooling system 900 for drones, which is roughly the same as the cooling system 100 for drones in the first embodiment, the difference between the two lies in this implementation The heat pipe 300 of the example is built-in and the cooling fan 620 is connected to the heat sink 610 .

In this embodiment, the heat pipe 300 passes through the heat pipe installation hole 910 of the shielding side wall 420 of the shielding case 400 , and is connected to the inner surface 412 of the shield body 410 , that is, the heat pipe 300 is built in. The two heat pipes 300 are respectively connected to two sides of the inner surface 412 , and the heat pipes 300 can be connected to the inner surface 412 of the cover 410 by bonding, welding, riveting, screwing or other fasteners.

In other embodiments, the heat pipe 300 can also pass through the shield body 410 of the shield 400 , so that a part of the heat pipe 300 is connected to the outer surface 411 and another part of the heat pipe 300 is connected to the inner surface 412 . It should be understood that in some other embodiments, the heat pipe 300 can be directly connected to the heat source to transfer heat from the heat source, that is, one end of the heat pipe 300 is connected to the heat source and the other end of the heat pipe 300 is connected to the radiator 610 .

In this embodiment, the cooling fan 620 is arranged on one side of the radiator 610, and the cooling fan 620 is connected to the radiator 610 through the second connector 920, the cooling fan 620 is opposite to the radiator 610 and the cooling fan 620 is connected to the radiator 610. Interval setting.

The utility model also provides an unmanned aerial vehicle (not shown in the figure), and the unmanned aerial vehicle is equipped with the above-mentioned cooling system (100 or 900) for the unmanned aerial vehicle.

In summary, the heat dissipation system (100 and 900) of the utility model for the drone includes a heat conduction device 200 and a heat dissipation device 600, the heat conduction device 200 includes a heat pipe 300 and a shield 400, and one end of the heat pipe 300 is connected with a heat dissipation device 600 , the other end of the heat pipe 300 is connected to the shield 400, the heat pipe 300 improves the heat transfer rate of the heat conduction device 200, thereby improving the heat dissipation rate of the heat sink 600; in addition, the cooling fan 620 makes the air around the radiator 610 flow forcibly, so that The circulation of hot air and cold air around the radiator 610 is accelerated, which improves the heat dissipation efficiency of the heat dissipation device for the drone.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A heat dissipation system for unmanned aerial vehicles, characterized in that, the heat dissipation system includes a heat conduction device and a heat dissipation device, and the heat conduction device includes a heat pipe for transferring heat from a heat source, and one end of the heat pipe is connected to the heat sink. The heat dissipation device is connected; the heat conduction device is interposed between the heat source and the heat dissipation device, and the heat dissipation device is located at one side of the heat dissipation system. 2. The cooling system for unmanned aerial vehicles according to claim 1, wherein the heat dissipation device comprises a radiator and a cooling fan, the heat pipe is connected with the radiator, and the cooling fan is arranged on the radiator. side of the radiator. 3. The cooling system for unmanned aerial vehicles according to claim 2, wherein the heat conduction device also includes a shielding cover, the shielding cover includes a cover body, and the cover body has an outer surface and an inner surface, The heat pipe is connected to at least one of the outer surface and the inner surface of the enclosure. 4. The heat dissipation system for a drone according to claim 3, wherein the heat pipe is connected to the outer surface of the cover. 5. The heat dissipation system for unmanned aerial vehicle according to claim 3, wherein the shielding cover also includes a shielding side wall connected to the cover body, and the shielding side wall is provided with a heat pipe installation hole, The heat pipe is passed through the heat pipe installation hole and connected to the inner surface. 6 . The cooling system for drones according to claim 3 , characterized in that, the cover body of the shielding cover is provided with a plurality of cooling holes penetrating the outer surface and the inner surface. 6 . 7 . The heat dissipation system for drones according to claim 3 , wherein the heat conduction device further comprises a heat conduction medium, and the heat conduction medium is disposed on one side of the inner surface of the cover. 7 . 8. The heat dissipation system for drones according to claim 7, wherein the heat dissipation system further comprises a mounting frame, the shielding cover is fastened to the mounting frame, and the mounting frame is provided with an opening , the heat-conducting medium is exposed from the opening and is in contact with the inner surface of the cover. 9. The cooling system for drones according to claim 1, wherein the heat pipe is an elbow. 10. An unmanned aerial vehicle, characterized in that it is equipped with the cooling system according to any one of claims 1-9.