Unmanned aerial vehicle thermal management device

Abstract

The invention discloses an unmanned aerial vehicle heat management device which comprises an air inlet pipe, the air inlet pipe comprises a scattered opening bent pipe, the scattered opening bent pipe is provided with a first bent pipe end and an air outlet end, the scattered opening bent pipe is provided with a scattered opening end, and the scattered opening end communicates with the first bent pipe end and the air outlet end; the scattered opening end and the air outlet end are sequentially arranged in the air blowing direction in the scattered opening bent pipe, the unmanned aerial vehicle heat management device has the thickness direction, and in the thickness direction, the air outlet end is partially higher than the scattered opening end. According to the air outlet structure, air can be uniformly distributed at the air outlet of the scatter elbow.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, and in particular to a thermal management device for unmanned aerial vehicles (UAVs). Background Technology

[0002] A drone thermal management device is a device used to cool the drone's charging equipment.

[0003] In current related technologies, the thermal management device for unmanned aerial vehicles includes an air inlet pipe with a curved design. The air inlet pipe includes a pipe section and a diffuser bend, which is connected to a heat exchange tube. When the air passes through the diffuser bend, the air is unevenly distributed at the outlet of the diffuser bend, resulting in uneven air distribution at the inlet of the heat exchange tube. Summary of the Invention

[0004] The purpose of this application is to provide a thermal management device for unmanned aerial vehicles (UAVs) that enables air to be evenly distributed at the outlet of the diffuser bend.

[0005] The unmanned aerial vehicle (UAV) thermal management device provided in this application includes an air inlet pipe, which includes a diffuser bend having a first bend end and an air outlet end.

[0006] The diffuser bend has a diffuser end, which connects to the first bend end and the air outlet end. The diffuser end and the air outlet end are arranged sequentially along the air blowing direction inside the diffuser bend. The UAV thermal management device has a thickness direction, and along the thickness direction, the air outlet end is higher than the diffuser end.

[0007] In this application, the diffuser end and the air outlet end are arranged sequentially along the air blowing direction inside the diffuser bend. Along the thickness direction, the air outlet end is higher than the diffuser end. After being blown out of the diffuser end, part of the air is dispersed under the action of centrifugal force, so that the air is evenly distributed at the air outlet of the diffuser bend. Attached Figure Description

[0008] Figure 1 This is a perspective view of the thermal management device for the unmanned aerial vehicle (UAV) of this application;

[0009] Figure 2 yes Figure 1 A 3D view of the other side of the thermal management device of the unmanned aerial vehicle (UAV);

[0010] Figure 3 yes Figure 1 A 3D view showing the centrifugal fan hidden in the middle;

[0011] Figure 4 This is a perspective view of the air inlet duct in some embodiments of this application;

[0012] Figure 5 yes Figure 4 A three-dimensional sectional view of the central air inlet duct and a sectional view of the air inlet duct;

[0013] Figure 6 This is a perspective view of the air inlet duct in some other embodiments of this application;

[0014] Figure 7 yes Figure 6 A three-dimensional sectional view of the central air inlet duct and a sectional view of the air inlet duct;

[0015] Figure 8 yes Figure 3 An exploded view of the first heat exchange tube body, used to show the air heat exchange components and evaporator inside the first heat exchange tube body;

[0016] Figure 9 yes Figure 8 A three-dimensional view of the other side;

[0017] Figure 10 yes Figure 8 A three-dimensional view of the first heat exchange tube body;

[0018] Figure 11 yes Figure 10 A three-dimensional view of the other side of the first heat exchange tube body;

[0019] Figure 12 yes Figure 8 A 3D view of the intermediate cooling pipe and flow pipe;

[0020] Figure 13 yes Figure 12 A three-dimensional sectional view of the intermediate cooling pipe and the flow pipe;

[0021] Figure 14 yes Figure 1 A 3D view of the hidden obstruction cover plate;

[0022] Figure 15 yes Figure 14 A 3D view of the central cooling component;

[0023] Figure 16 yes Figure 14 A 3D view of the intermediate condenser, air shroud, and condenser fan;

[0024] Figure 17 yes Figure 14 A 3D view on the other side;

[0025] Figure 18 yes Figure 17 A three-dimensional view of the centrifugal fan, extension tube, electric heater, and second heat exchange tube body;

[0026] Figure 19 yes Figure 18 A three-dimensional sectional view in the middle;

[0027] Figure 20 yes Figure 18 Exploded view;

[0028] Figure 21 yes Figure 20 A perspective view of the second shell section;

[0029] Figure 22 yes Figure 20 Enlarged view of circle A in the middle;

[0030] Figure 23 yes Figure 1 The three-dimensional sectional view in the image is used to show the direction of airflow;

[0031] Figure 24 yes Figure 3 A three-dimensional sectional view. Detailed Implementation

[0032] The exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with this application; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of this application as set forth in the claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this application. The singular forms “a,” “the,” or “the” used in the description and claims of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this application do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "above," "below," and similar words appearing in this application are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" and similar words are an open-ended expression, meaning that the element preceding "comprising" or "including" covers the element following "comprising" or "including" and its equivalents, which does not exclude that the element preceding "comprising" or "including" may also include other elements. If "several" appears in this application, it means two or more.

[0035] like Figures 1 to 24The image shows a thermal management device for an unmanned aerial vehicle (UAV) conforming to this application, which includes: a mounting plate 1, a circulation pipe assembly 2, and a heat exchange module 3 for exchanging heat with the circulating air in the circulation pipe assembly 2.

[0036] The circulation pipe assembly 2 includes a fan 21, an air inlet pipe 22, and a heat exchange pipe 5. The circulation pipe assembly 2 has a circulation pipe inlet end 2232 and a circulation pipe outlet end 62, both of which are connected to the drone charging device. The fan 21 draws air from the drone charging device into the heat exchange pipe 5 through the circulation pipe inlet end 2232. Heat exchange is performed by the heat exchange module 3 inside the heat exchange pipe 5, and finally, the air is blown towards the drone charging device through the circulation pipe outlet end 62, thereby cooling or heating the drone charging device.

[0037] In some implementations, the drone charging device has a sealed enclosure. Air is drawn in from the inner cavity of the sealed enclosure, and then cooled or heated air is blown back into the sealed enclosure, realizing air circulation at the drone charging device, cooling the drone charging device, and reducing the impact of external dust on the drone charging device.

[0038] In some embodiments, the drone charging device can also be exposed to the outside world. The air inlet 2232 and the air outlet 62 of the circulation pipe are both facing the drone charging device. The hot air around the drone charging device enters the heat exchange module 3 through the air inlet 2232 of the circulation pipe for heat exchange, and then blows onto the surface of the drone charging device through the air outlet 62 of the circulation pipe to cool the drone charging device.

[0039] Reference Figure 1 as well as Figure 2 The UAV thermal management device has a longitudinal direction X, a transverse direction Y, and a thickness direction Z. The longitudinal direction X is parallel to the length direction of the mounting plate 1, the transverse direction Y is parallel to the width direction of the mounting plate 1, and the thickness direction Z is parallel to the thickness direction of the mounting plate 1.

[0040] Reference Figure 3 , Figure 4 as well as Figure 5The air inlet duct 22 has a circulation pipe inlet end 2232 and an outlet end 2222. The air inlet duct 22 includes a pipe section 221, a diffuser bend 222, and an inlet bend 223. The continuous curve formed by the airflow direction B is located in the same plane, making the arrangement of the pipe section 221, the diffuser bend 222, and the inlet bend 223 more compact, further improving the modularity of the UAV thermal management device. The inlet bend 223 has a circulation pipe inlet end 2232 and a second bend end 2231. The mounting plate 1 has a first opening 13. The circulation pipe inlet end 2232 is fixedly connected to the mounting plate 1 and is connected to the first opening 13. The circulation pipe inlet end 2232 is used to draw in air near the UAV charging device. The inlet bend 223 extends from the mounting plate 1 along the thickness direction Z and then bends and extends along the transverse direction Y. The length direction of the pipe section 221 is parallel to the transverse direction Y. The pipe section 221 has a first pipe end 2211 and a second pipe end 2212. The first pipe end 2211 is sealed to the second bend end 2231. The inside of the pipe section 221 is connected to the inside of the inlet bend 223.

[0041] Reference Figure 3 , Figure 4 as well as Figure 5 The diffuser bend 222 has a first bend end 2221 and an air outlet end 2222. The first bend end 2221 is fixedly connected to the second pipe end 2212. The air outlet end 2222 is located on the side of the pipe 221 away from the mounting plate 1. The first bend end 2221 and the air outlet end 2222 both face the same plane, and this plane is perpendicular to the transverse direction Y.

[0042] In some embodiments, the first bend end 2221 and the air outlet end 2222 are located in the same plane, and this plane is perpendicular to the lateral direction Y. The air outlet end 2222 is connected to the heat exchange module 3, so that the heat exchange module 3 and the pipe 221 are distributed along the thickness direction Z, and the pipe 221 is adjacent to the heat exchange module 3, so that the air inlet pipe 22 and the heat exchange module 3 are compactly arranged, thereby reducing the overall volume of the UAV thermal management device. In some embodiments, the plane where the first bend end 2221 is located and the plane where the air outlet end 2222 is located are arranged in parallel, or the arrangement of the first bend end 2221 and the air outlet end 2222 only requires that the pipe 221 is adjacent to the heat exchange module 3 and that the pipe 221 is parallel to the heat exchange pipe 5.

[0043] Reference Figure 4 as well as Figure 5The flow surface of the circulation pipe inlet 2232 is oblong, the flow surface of the second bend 2231 is rectangular, and the flow surfaces of the pipe section 221 and the diffuser bend 222 are both rectangular. The flow areas of the inlet bend 223, pipe section 221, and diffuser bend 222 gradually increase along the blowing direction B. The flow area of ​​the first pipe section 2211 is smaller than that of the second pipe section 2212, the flow area of ​​the first bend 2221 is smaller than that of the outlet 2222, and the flow area of ​​the circulation pipe inlet 2232 is smaller than that of the second bend 2231. In some embodiments, it is sufficient that the flow area of ​​the first pipe section 2211 is smaller than that of the second pipe section 2212, the first bend 2221 is smaller than that of the outlet 2222, and the flow area of ​​the circulation pipe inlet 2232 is smaller than that of the second bend 2231.

[0044] When the air inlet duct 22 is bent, the air is unevenly distributed at the diffuser bend 222 when it passes through the diffuser bend 222. The following technical solution is used to improve this.

[0045] See Figure 5 as well as Figure 7 The air inlet duct 22 has a diffuser end 2223. The diffuser end 2223, the first bend end 2221, and the air outlet end 2222 all face the same plane, which is perpendicular to the transverse direction Y. The diffuser end 2223 and the air outlet end 2222 are arranged sequentially along the air blowing direction B within the diffuser bend duct 222. Along the thickness direction Z, the air outlet end 2222 is partially higher than the diffuser end 2223. This arrangement allows some air to be dispersed under centrifugal force after being blown out of the diffuser end 2223, resulting in a more uniform air distribution at the air outlet of the diffuser bend duct 222. In other words, along the thickness direction Z, the axis of the diffuser end 2223 is closer to the first bend end 2221 than the axis of the air outlet end 2222.

[0046] See Figure 8 The heat exchange tube 5 has a heat exchange tube inlet end 510 and an outlet end 2222 that is sealed to the heat exchange tube inlet end 510. That is, along the thickness direction Z, the heat exchange tube inlet end 510 is higher than the outlet end 2223.

[0047] In the related technology, the air inlet pipe 22 does not have a diffuser end 2223. Since the fluid area of ​​the air outlet end 2222 is the same as or similar to the flow area of ​​the air inlet end 510 of the heat exchange tube, and the height of the air outlet end 2222 along the thickness direction Z is the same as or similar to the height of the air inlet end 510 of the heat exchange tube, the air inlet pipe 22 is bent. After the air passes through the air outlet end 2222 and changes direction, it enters the heat exchange tube 5. The air velocity near the air outlet above the air outlet end 2222 is greater than the air velocity below it, which causes the air at the air outlet end 2222 to be uneven, resulting in uneven distribution of the air ducts entering the air inlet pipe 22. In this application, by setting the diffuser end 2223, although the wind speed near the air outlet above the diffuser end 2223 is greater than the wind speed below it, the air volume is greater at the location with higher wind speed. Since the air outlet end 2222 is higher than the diffuser end 2223, and the air inlet end 510 of the heat exchange tube is also higher than the diffuser end 2223, the air rises after coming out of the diffuser end 2223 and enters the air inlet end 510 of the heat exchange tube. During the rising process, the air gradually disperses, thus making the air inlet end 510 of the heat exchange tube uniform.

[0048] In some embodiments, the flow area of ​​the air outlet 2222 is not less than the flow area of ​​the air inlet 510 of the heat exchange tube, and the flow area of ​​the diffuser 2223 is less than the flow area of ​​the air outlet 2222. In this way, the air direction is changed after passing through the diffuser 2223, and the air is evenly dispersed after entering the air inlet 510 of the heat exchange tube.

[0049] See Figure 5 as well as Figure 7 The air inlet pipe 22 includes a straight wall portion 2224 and a bent wall portion 2225 connected to the straight wall portion 2224. The straight wall portion 2224 is arranged parallel to the plane where the air outlet end 2222 is located. The bent wall portion 2225 bends and extends from the straight wall portion 2224 toward the air inlet end 510 of the heat exchange tube. A portion of the bent wall portion 2225 forms part of the diffuser end 2223. The diffuser end 2223 is located in the transverse direction Y relative to the straight wall portion 2224 and close to the air inlet end 510 of the heat exchange tube.

[0050] In related technologies, the air inlet duct includes a straight wall section and a curved wall section connected to the straight wall section. The curved wall section bends and extends from the straight wall section towards the air inlet end of the heat exchange tube, and the end of the curved wall section is part of the air outlet end. After the air changes direction at the air outlet end, it enters the heat exchange tube. The air velocity near the upper part of the air outlet end is greater than the air velocity below it, resulting in uneven airflow at the entire air outlet end and uneven distribution of airflow into the air inlet duct. In this application, by setting the air outlet end 2222 to be higher than the curved wall section 2225, the air with higher velocity at the air outlet of the curved wall section 2225 moves upward and enters the air inlet end 510 of the heat exchange tube, thus achieving the purpose of uniform airflow.

[0051] The flared bend 222 has a flared end 2223, which connects to the first bend end 2221 and the air outlet end 2222. In some embodiments, see [reference needed]. Figure 5 The diffuser end 2223 and the air outlet end 2222 are both located on the same plane. In this way, after the air passes through the diffuser end 2223, it can directly enter the air inlet end 510 of the heat exchange tube and spread evenly at the air inlet end 510 of the heat exchange tube.

[0052] See Figure 5 and Figure 7 The diffuser bend 222 includes a bent wall portion 2228, which partially forms part of the first bend end 2221 and part of the air outlet end 2222. The straight wall portion 2224 is at least partially opposite to the bent wall portion 2228. See details. Figure 5 The diffuser bend 222 includes a straight wall portion 2224 and a bend portion 2225 connected to the straight wall portion 2224. The bend portion 2225 includes a horizontal plate 22251, a vertical plate 22252, and a first bent plate 22253. The horizontal plate 22251 extends from the straight wall portion 2224 in the transverse direction Y. The vertical plate 22252 extends from the horizontal plate 22251 in the thickness direction Z. The first bent plate 22253 extends from the vertical plate 22252 by bending. A portion of the first bent plate 22253 forms part of the diffuser end 2223. By setting the horizontal plate 22251, the vertical plate 22252 and the first bent plate 22253 are positioned in the transverse direction Y relative to the straight wall portion 2224 and close to the air inlet end 510 of the heat exchange tube. In other embodiments, see [reference needed]. Figure 7 The diffuser end 2223 is located in the lateral direction Y, away from the air outlet end 2222 and away from the air inlet end 510 of the heat exchange tube. In this way, after passing through the diffuser end 2223, the air enters the air outlet end 2222 and the air inlet end 510 of the heat exchange tube in sequence, and finally spreads evenly at the air inlet end 510 of the heat exchange tube.

[0053] For details, see Figure 7 The diffuser bend 222 includes a straight wall portion 2224 and a bent wall portion 2225 connected to the straight wall portion 2224. The bent wall portion 2225 includes a second bending plate 22254, which extends from the straight wall portion 2224 by bending. In some embodiments, see [reference needed]. Figure 5 The diffuser bend 222 of the air inlet duct 22 includes a bent wall portion 2226, which extends laterally in the Y direction after bending from the straight wall portion 2224. The bent wall portion 2226 is located outside the bent wall portion 2225, and a portion of the bent wall portion 2226 forms part of the air outlet end 2222. Along the thickness direction Z, a portion of the bent wall portion 2226 is higher than the bent wall portion 2225. The end of the bent wall portion 2226 near the heat exchange tube 5 and the end of the bent wall portion 2225 near the heat exchange tube 5 are on the same surface. The bent wall portion 2226 of the air inlet duct 22 is connected to the air inlet end 510 of the heat exchange tube.

[0054] In other implementations, see Figure 7The air inlet duct 22 includes a curved wall portion 2226ˋ, which is connected to a curved wall portion 2225. The curved wall portion 2226ˋ is located between the curved wall portion 2225 and the air inlet end 510 of the heat exchange tube in the transverse direction Y. A portion of the curved wall portion 2226ˋ forms part of the air outlet end 2222. The curved wall portion 2226ˋ is closer to the air inlet end 510 of the heat exchange tube than the curved wall portion 2225. In the thickness direction Z, a portion of the curved wall portion 2226ˋ is higher than the curved wall portion 2225. The curved wall portion 2226ˋ of the air inlet duct 22 is connected to the air inlet end 510 of the heat exchange tube.

[0055] For details, see Figure 7 The curved wall portion 2226ˋ includes a straight plate 22261ˋ and a curved plate 22262ˋ. The straight plate 22261ˋ extends from the curved wall portion 2225 along the thickness direction Z, and the curved plate 22262ˋ extends along the transverse direction Y after being bent from the straight plate 22261ˋ.

[0056] In some implementations, see Figure 5 The diffuser bend 222 has a guide plate 4, which includes a straight plate 41 and a curved plate 42. The straight plate 41 and the curved plate 42 are sequentially distributed along the airflow direction B inside the diffuser bend 222. The width direction of the straight plate 41 and the curved plate 42 are parallel to the longitudinal direction X. The straight plate 41 and the curved plate 42 are fixedly connected to the inner wall of the diffuser bend 222. The straight plate 41 evenly divides the flow surface of the diffuser bend 222. The diffuser bend 222 has a third bend end 2227, and the plane of the third bend end 2227 is perpendicular to the plane of the first bend end 2221. By setting the guide plate 4, the airflow into the diffuser bend 222 is evenly introduced at the air inlet of the third bend end 2227, and the airflow is evenly discharged from the diffuser bend 222 at the air outlet 2222, making the airflow distribution in the air inlet pipe 22 more uniform.

[0057] Reference Figure 4 as well as Figure 5 The diffuser bend 222 has two guide plates 4 and two straight plates 41 distributed at intervals along the transverse direction Y. The two straight plates 41 evenly divide the flow surface of the diffuser bend 222. The guide plates 4 extend along the extension direction of the diffuser bend 222.

[0058] Reference Figure 4 as well as Figure 5 The guide plate 4 is an integral part. Since the flow surface of the diffuser bend 222 is rectangular, the guide plate 4 can be more easily connected and fixed to the inner wall of the diffuser bend 222.

[0059] After the air enters the diffuser bend 222, the air is evenly distributed by the two guide plates 4 and blown towards the air outlet 2222 along the extension direction of the guide plates 4, making the air duct distribution in the diffuser bend 222 more uniform, improving the heat exchange efficiency of the heat exchange module 3 to the diffuser bend 222, and further saving energy consumption.

[0060] Reference Figure 3 as well as Figure 8 The heat exchange tube 5 has its length parallel to the transverse direction Y. The heat exchange tube 5 includes a first heat exchange tube body 51 and a second heat exchange tube body 52. ​​The lengths of both the first and second heat exchange tube bodies 51 and 52 are parallel to the transverse direction Y. The heat exchange tube 5 and the tube section 221 are arranged parallel to each other. The airflow direction D within the heat exchange tube 5 is parallel to the airflow direction C within the tube section 221. The heat exchange tube 5 and the tube section 221 are arranged adjacent to each other. The first heat exchange tube body 51 and the second heat exchange tube body 52 are distributed sequentially along the airflow direction B. One end of the first heat exchange tube body 51 is fixedly connected to one end of the second heat exchange tube body 52, and the other end of the first heat exchange tube body 51 is fixedly connected to the air outlet 2222. The heat exchange tube 5 is connected to the diffuser bend 222. Specifically, the first heat exchange tube body 51 includes a heat exchange tube inlet end 510, which is fixedly connected to the air outlet 2222.

[0061] The heat exchange module 3 includes an air heat exchange component 31, a cooling component 32, and an electric heater 33. The air heat exchange component 31 includes a cooling pipe 311, a flow pipe 312, and a heat exchange fan 313.

[0062] Reference Figure 8 as well as Figure 9 The first heat exchange tube body 51 has a first through hole 511 and a second through hole 512. The first through hole 511 and the second through hole 512 are distributed along the longitudinal direction X. The cooling tube 311 and the flow tube 312 are located between the first through hole 511 and the second through hole 512. The two ends of the cooling tube 311 are respectively connected to the first through hole 511 and the second through hole 512.

[0063] The first heat exchange tube body 51 has a disassembly through hole 513 and a baffle plate 514. The disassembly through hole 513 is located on the side of the air heat exchange assembly 31 away from the mounting plate 1. The baffle plate 514 is fixedly connected to or limited by the first heat exchange tube body 51. Specifically, the baffle plate 514 and the first heat exchange tube body 51 are connected together by bolts.

[0064] During installation, the cooling pipe 311 and the flow pipe 312 are simply installed into the heat exchange pipe 5 through the disassembly through hole 513, so that both ends of the cooling pipe 311 are connected to the first through hole 511 and the second through hole 512 respectively, which facilitates the installation of the air heat exchange component 31.

[0065] Reference Figure 10 as well as Figure 11The first heat exchange tube body 51 has three baffles 515 on its inner wall distributed along the longitudinal direction X. The length direction of the baffles 515 is parallel to the thickness direction Z. The three baffles 515 are distributed along the transverse direction Y and along the air blowing direction B. The three baffles 515 are, in sequence, the first baffle 5151, the second baffle 5152, and the third baffle 5153. The second baffle 5152 and the third baffle 5153 are located on both sides of the first through hole 511 or the second through hole 512, respectively. A filter screen is held between the first baffle 5151 and the second baffle 5152. The cooling tube 311 and the flow tube 312 are both held by the second baffle 5152 and the third baffle 5153. The second baffle 5152 and the third baffle 5153 restrict the movement of the cooling tube 311 and the flow tube 312 along the transverse direction Y, thereby positioning the cooling tube 311 and the flow tube 312 and facilitating installation.

[0066] Reference Figure 12 as well as Figure 13 The flow pipe 312 is parallel to the transverse direction Y along its length, and the cooling pipe 311 is parallel to the longitudinal direction X along its length. The cooling pipe 311 and the flow pipe 312 are distributed along the thickness direction Z. In some embodiments, the cooling pipe 311 and the flow pipe 312 are arranged intersectingly, such as... Figure 12 In the middle, the cooling pipe 311 and the flow pipe 312 are arranged perpendicularly.

[0067] Reference Figure 12 as well as Figure 13 The cooling pipe 311 includes multiple partitions 3112 and multiple first seals 3111. The flow pipe 312 includes multiple second seals 3121. The multiple partitions 3112 are evenly distributed along the thickness direction Z. The first seals 3111 and the second seals 3121 are alternately distributed along the thickness direction Z. The length direction of the first seal 3111 is parallel to the longitudinal direction X, and the length direction of the second seal 3121 is parallel to the transverse direction Y. Along the thickness direction Z, there is a partition 3112 between each adjacent first seal 3111 and second seal 3121. There are two first seals 3111 or two second seals 3121 between each two adjacent partitions 3112. The multiple partitions 3112, the multiple first seals 3111, and the multiple second seals 3121 are an integral piece.

[0068] Reference Figure 12 as well as Figure 13A cooling channel 3113 is formed between two adjacent partitions 3112 and the first seal 3111, and a flow channel 3122 is formed between two adjacent partitions 3112 and the second seal 3121. The cooling channel 3113 and the flow channel 3122 are located in different planes and are perpendicular to each other. The cooling channel 3113 and the flow channel 3122 are not in fluid communication. The cooling channel 3113 is connected to both the first through hole 511 and the second through hole 512, and the flow channel 3122 is connected to the diffuser bend 222. In some other embodiments, both the cooling pipe 311 and the flow pipe 312 have fins. Both the cooling pipe 311 and the flow pipe 312 are located between the second baffle 5152 and the third baffle 5153.

[0069] Multiple flow channels 3122 are arranged along the thickness direction Z, and the outlet end 2223 is at least lower than one of the flow channels 3122 along the thickness direction Z, so that the air volume at the air inlet end 510 of the heat exchange tube is uniform, thereby evenly distributing the air to the multiple flow channels 3122.

[0070] The cooling pipe 311 and the flow pipe 312 are formed by multiple thin partitions 3112, multiple first seals 3111, and multiple second seals 3121. On the one hand, the cooling channel 3113 and the flow channel 3122 are separated by only a thin partition 3112, which reduces the distance between the cooling channel 3113 and the flow channel 3122, thereby increasing the heat exchange effect between the cooling channel 3113 and the flow channel 3122. On the other hand, the superposition of multiple thin partitions 3112, multiple first seals 3111, and multiple second seals 3121 facilitates the processing and formation of the cooling channel 3113 and the flow channel 3122.

[0071] Reference Figure 10 as well as Figure 11 The first heat exchange tube body 51 has an extension tube 516, which is aligned with the first through hole 511. (Refer to...) Figure 9 as well as Figure 11 The heat exchange fan 313 is fixedly connected to the extension tube 516, and the heat exchange fan 313 is located on the side of the extension tube 516 away from the first heat exchange tube body 51.

[0072] By extending the tube 516, the distance between the heat exchange fan 313 and the multiple baffles 3112, the multiple first seals 3111, and the multiple second seals 3121 can be increased, making it easier for the heat exchange fan 313 to extract outside air from the cooling channel 3113, accelerating the flow rate of outside air in the cooling channel 3113, and improving the heat exchange efficiency between the cooling channel 3113 and the flow channel 3122.

[0073] During normal use, the fan 21 and heat exchange fan 313 start, allowing the heat inside the drone charging device to enter the air inlet pipe 22 through the air inlet end 2232 of the circulation pipe. The heat is then evenly distributed by the guide plate 4 inside the air inlet pipe 22, reducing the situation where the airflow in the air inlet pipe 22 is concentrated in one place due to the curved design of the air inlet pipe 22. This makes the airflow distribution in the air inlet pipe 22 more uniform and improves the heat exchange efficiency. The heat exchange fan 313 allows the outside air of the drone charging device to enter the cooling pipe 311. The cooling pipe 311 exchanges the heat in the circulation pipe 312 to cool the drone charging device. When the outside temperature is too high, the air heat exchange component 31 stops operating, and the cooling component 32 provides cooling.

[0074] In some embodiments, the difference from the above-described embodiments is that: the air heat exchange assembly 31 includes a cooling pipe 311 and a heat exchange fan 313; the first heat exchange tube body 51 does not have a first through hole 511 and a second through hole 512; the length direction of the cooling pipe 311 is parallel to the longitudinal direction X; the cooling pipe 311 passes through the first heat exchange tube body 51 in the longitudinal direction; the cooling pipe 311 is fixedly connected to the first heat exchange tube body 51; both ends of the cooling pipe 311 are exposed to the outside of the UAV thermal management device; the heat exchange fan 313 is fixedly connected to the first heat exchange tube body 51; the heat exchange fan 313 is aligned with one end of the cooling pipe 311; in use, only the heat exchange fan 313 needs to be started, and the heat exchange fan 313 accelerates the airflow between the cooling pipe 311 and the outside of the UAV thermal management device, realizing the exchange of heat between the circulating air in the first heat exchange tube body 51 and the cooling pipe 311.

[0075] In some embodiments, the difference from the above-described embodiments is that the air heat exchange assembly 31 includes a plurality of cooling pipes 311 and a plurality of flow pipes 312. The length direction of the plurality of cooling pipes 311 is parallel to the longitudinal direction X, and the length direction of the plurality of flow pipes 312 is parallel to the transverse direction Y. Along the thickness direction Z, the cooling pipes 311 and the flow pipes 312 are stacked alternately and integrally formed. The cooling pipes 311 have a cooling channel 3113 inside, and the flow pipes 312 have a flow channel 3122 inside. The cooling channel 3113 is connected to the first through hole 511 and the second through hole 512. The flow channel 3122 is connected to the air outlet 2222 and the first heat exchange tube body 51.

[0076] Reference Figure 2 as well as Figure 14The refrigeration assembly 32 includes an evaporator 321, a condenser 322, a throttling device 325, and a compressor 324. The evaporator 321 is arranged parallel to the thickness direction Z and is located inside the first heat exchange tube 51. The air inlet surface of the evaporator 321 is the windward surface, which is parallel to the thickness direction Z. The windward surface of the evaporator 321 is perpendicular to the airflow direction B inside the heat exchange tube 5. The evaporator 321 is fixedly connected to or limited by the first heat exchange tube 51. Specifically, the evaporator 321 can be installed inside the first heat exchange tube 51 by bolts. The compressor 324 is fixedly connected to the mounting plate 1. Along the longitudinal direction X, the compressor 324 and the electronic expansion valve 323 are both located within the evaporator. Between the evaporator 321 and the condenser 322, the compressor 324 is closer to the condenser 322 than the evaporator 321. The condenser 322 is arranged parallel to the longitudinal direction X. Along the thickness direction Z, the first through hole 511 is located on the side of the condenser 322 away from the mounting plate 1. When the air heat exchange assembly 31 is cooling, since the first through hole 511 is located on the side of the condenser 322 away from the mounting plate 1, the airflow direction of the condenser 322 and the heat exchange fan 313 is staggered, which can reduce the influence of the condenser 322 on the air intake rate of the heat exchange fan 313. The condenser 322, the electronic expansion valve 323 and the compressor 324 are all located on the side of the first through hole 511 away from the second through hole 512.

[0077] Reference Figure 14 as well as Figure 15 The compressor 324 has a first outlet 3241 and a first inlet 3242, the condenser 322 has a second inlet 3221 and a second outlet 3222, the evaporator 321 has a third inlet 3211 and a third outlet 3212, and the throttling element 325 includes an electronic expansion valve 323, which has a fourth inlet 3231 and a fourth outlet 3232. The first outlet 3241 is connected to the second inlet 3221 through a pipe, the second outlet 3222 is connected to the fourth inlet 3231 through a pipe, the fourth outlet 3232 is connected to the third inlet 3211 through a pipe, and the third outlet 3212 is connected to the first inlet 3242 through a pipe.

[0078] Reference Figure 14 as well as Figure 16The condenser 322 has a condenser fan 3223 and a fan shield 3224. Along the thickness direction Z, the fan shield 3224 is located between the mounting plate 1 and the condenser 322. The fan shield 3224 is fixedly connected to the condenser 322 and the mounting plate 1. The mounting plate 1 has a third through hole 11, which communicates with the inside of the fan shield 3224. The condenser fan 3223 is located inside the fan shield 3224 and is aligned with the third through hole 11. The condenser fan 3223 is fixedly connected to the mounting plate 1. In use, when the refrigeration component 32 is working, the condenser fan 3223 can cool the condenser 322. When the refrigeration component 32 is not working, the condenser fan 3223 can quickly extract the air drawn into the condenser 322 by the heat exchange fan 313.

[0079] Reference Figure 17 as well as Figure 18 The second heat exchange tube body 52 has an extension tube 521. The second heat exchange tube body 52 and the extension tube 521 are arranged sequentially along the air blowing direction B. The extension tube 521 is connected to the second heat exchange tube body 52. ​​The extension tube 521 has an extension tube inlet end 522 and an extension tube outlet end 523. The extension tube inlet end 522 is integrally formed with the second heat exchange tube body 52. ​​The flow area of ​​the extension tube outlet end 523 is smaller than the flow area of ​​the extension tube inlet end 522. The electric heater 33 is located inside the second heat exchange tube body 52 and is fixedly connected to the second heat exchange tube body 52. ​​The cooling tube 311, the evaporator 321 and the electric heater 33 are distributed sequentially along the air blowing direction B.

[0080] Reference Figure 17 as well as Figure 18 The fan 21 includes a centrifugal fan 6; in some embodiments, the fan 21 may also include an axial fan; the centrifugal fan 6 has a fan inlet end 61 and a circulation pipe outlet end 62, the centrifugal fan 6 includes a first housing part 63, a second housing part 64 and a fan blade 65, the first housing part 63 has a fan inlet end 61, and the fan inlet end 61 and the extension pipe outlet end 523 are integrally formed.

[0081] Reference Figure 20 as well as Figure 21 The second housing portion 64 has a mounting through hole 641, a first support surface 642 and a second support surface 643, the first support surface 642 and the second support surface 643 are connected to each other, and the first support surface 642 and the second support surface 643 are both located around the mounting through hole 641.

[0082] Reference Figure 18 as well as Figure 19The centrifugal fan 6 has an inclined volute, and its thickness direction is inclined relative to the transverse direction Y. The inclined direction F of the volute intersects with the transverse direction Y. There is a gap between the fan inlet 61 and the electric heater 33. The circulation pipe outlet 62 is adjacent to the circulation pipe inlet 2232. The orthographic projection of the fan inlet 61 on the mounting plate 1 is at least partially located within the orthographic projection of the circulation pipe outlet 62 on the mounting plate 1. Alternatively, in some embodiments, the orthographic projection of the fan inlet 61 on the mounting plate 1 is located on the side of the circulation pipe outlet 62 on the mounting plate 1 that is away from the heat exchange tube 5. The first support surface 642 is inclined. The first support surface 642 is inclined in the direction E of parallel to the inclination direction F of the centrifugal fan 6. The second support surface 643 is perpendicular to the first support surface 642. The first support surface 642 and the second support surface 643 are used to support the first housing part 63, and both the first support surface 642 and the second support surface 643 are in contact with the first housing part 63. The first housing part 63 covers the mounting through hole 641. The fan blade 65 is located inside the second housing part 64, and the second housing part 64 is rotatably connected to the fan blade 65. The first housing part 63 and the second housing part 64 are fixedly connected or limited connected. Specifically, the first housing part 63 and the second housing part 64 are connected by bolts.

[0083] By tilting the centrifugal fan 6, the air inlet 61 of the centrifugal fan 6 is positioned far away from the electric heater 33. This improves the suction effect of the centrifugal fan 6 on the circulating air in the heat exchange tube 5, and also lengthens the path of the circulating air through the electric heater 33, thus improving the heating effect of the electric heater 33 on the circulating air. The tilted centrifugal fan 6 also allows the air outlet 62 of the circulating pipe to be adjacent to the air inlet 2232 of the circulating pipe, facilitating connection between the UAV thermal management device and the air inlet and outlet of the UAV charging device, thereby improving the modularity and integration of the UAV thermal management device. Furthermore, the tilted centrifugal fan 6 allows the first housing part 63 to be placed on the first support surface 642 and the second support surface 643 when installing the first housing part 63 onto the second housing part 64, and then connected to the second housing part 64 with bolts, facilitating the installation of the two housing parts.

[0084] Reference Figure 18 as well as Figure 19The second housing part 64 has an air-gathering duct 644, which has a circulation pipe outlet end 62 and an air-gathering duct inlet end 645. The air-gathering duct inlet end 645 is connected to the second housing part 64, and the flow area of ​​the air-gathering duct inlet end 645 is larger than the flow area of ​​the circulation pipe outlet end 62. Because the flow area of ​​the air-gathering duct inlet end 645 is larger than the flow area of ​​the circulation pipe outlet end 62, the air speed blown out from the centrifugal fan 6 is increased, which improves the cooling or heating effect on the drone charging device. The mounting plate 1 has a second opening 14, and the first opening 13 and the second opening 14 are distributed along the transverse direction Y and are arranged adjacent to each other. The circulation pipe outlet end 62 is fixed to the mounting plate 1. The circulation pipe outlet 62 is connected to the second opening 14. The circulation pipe outlet 62 and the circulation pipe inlet 2232 both face the same plane, which is perpendicular to the thickness direction Z. The circulation pipe outlet 62 and the circulation pipe inlet 2232 are both located on the side of the first heat exchange tube body 51 facing the mounting plate 1. Specifically, the circulation pipe outlet 62 and the circulation pipe inlet 2232 both face the mounting plate 1, and the circulation pipe outlet 62 and the circulation pipe inlet 2232 are both located on the same plane. Along the transverse direction Y, the circulation pipe outlet 62 and the circulation pipe inlet 2232 are arranged adjacent to each other. In some embodiments, the circulation pipe outlet 62 and the circulation pipe inlet 2232 are located in the same plane.

[0085] Reference Figure 20 as well as Figure 22 The first housing portion 63 has a positioning insert 631, the positioning insert 631 has a hook portion 632, the second housing portion 64 has a fixing block 646, the fixing block 646 has a positioning through hole 647, the positioning through hole 647 is for the hook portion 632 and the positioning insert 631 to pass through, the hook portion 632 has a blocking wall 633, the positioning insert 631 is at least partially located in the positioning through hole 647, along the inclined direction of the second housing portion 64, the hook portion 632 is located on the side of the fixing block 646 away from the first housing portion 63, and the blocking wall 633 is in contact with the fixing block 646.

[0086] Reference Figure 17 The mounting plate 1 has a support plate 12, which is inclined and parallel to the inclination direction F of the centrifugal fan 6. The support plate 12 is located on the side of the second housing part 64 away from the first housing part 63, and the support plate 12 is fixedly connected to the second housing part 64. Since the centrifugal fan 6 is inclined, the connection between the centrifugal fan 6 and the mounting plate 1 is prone to deformation. The support plate 12 supports the centrifugal fan 6, reducing the deformation of the connection between the centrifugal fan 6 and the mounting plate 1 caused by the inclined setting.

[0087] The above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. The understanding of this specification should be based on those skilled in the art. Although this specification has described this application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to this application. All technical solutions and improvements that do not depart from the spirit and scope of this application should be covered within the scope of the claims of this application.

Claims

1. A thermal management device for an unmanned aerial vehicle (UAV), comprising an air inlet pipe (22), the air inlet pipe (22) including a diffuser bend (222), the diffuser bend (222) having a first bend end (2221) and an air outlet end (2222). Its features are, The diffuser bend (222) has a diffuser end (2223), which is connected to the first bend end (2221) and the air outlet end (2222). The diffuser end (2223) and the air outlet end (2222) are arranged sequentially along the air blowing direction (B) inside the diffuser bend (222). The UAV thermal management device has a thickness direction (Z). Along the thickness direction (Z), the air outlet end (2222) is partially higher than the diffuser end (2223).

2. The UAV thermal management device according to claim 1, characterized in that, The UAV thermal management device includes a heat exchange tube (5), which has an air inlet end (510) and an air outlet end (2222) connected to the air inlet end (510). Along the thickness direction (Z), the air inlet end (510) is partially higher than the outlet end (2223).

3. The UAV thermal management device according to claim 2, characterized in that, The flow area of ​​the air outlet (2222) is not less than the flow area of ​​the air inlet (510) of the heat exchange tube, and the flow area of ​​the diffuser (2223) is less than the flow area of ​​the air outlet (2222).

4. The UAV thermal management device according to claim 2, characterized in that, The diffuser bend (222) includes a straight wall portion (2224) and a bend portion (2225) connected to the straight wall portion (2224). The straight wall portion (2224) is arranged parallel to the plane of the air outlet (2222). The bend portion (2225) bends and extends from the straight wall portion (2224) toward the air inlet (510) of the heat exchange tube. A portion of the bend portion (2225) forms part of the diffuser end (2223).

5. The UAV thermal management device according to claim 4, characterized in that, The curved wall portion (2225) includes a horizontal plate (22251), a vertical plate (22252), and a first curved plate (22253). The UAV thermal management device has a transverse direction (Y), which is perpendicular to the thickness direction (Z). The horizontal plate (22251) extends from the straight wall portion (2224) along the transverse direction (Y). The vertical plate (22252) extends from the horizontal plate (22251) along the thickness direction (Z). The first curved plate (22253) extends from the vertical plate (22252) by bending. A portion of the first curved plate (22253) forms a part of the diffuser end (2223); or... The curved wall portion (2225) includes a second curved plate (22254), which extends from the straight wall portion (2224) by bending.

6. The UAV thermal management device according to claim 4, characterized in that, The curved wall portion (2225) includes a horizontal plate (22251), a vertical plate (22252), and a first curved plate (22253). The UAV thermal management device has a transverse direction (Y), which is perpendicular to the thickness direction (Z). The horizontal plate (22251) extends from the straight wall portion (2224) along the transverse direction (Y). The vertical plate (22252) extends from the horizontal plate (22251) along the thickness direction (Z). The first curved plate (22253) extends from the vertical plate (22252) by bending. A portion of the first curved plate (22253) forms a part of the diffuser end (2223). The air inlet pipe (22) includes a curved wall portion (2226), which extends along the transverse direction (Y) after bending from the straight wall portion (2224). The curved wall portion (2226) is located outside the curved wall portion (2225) along the thickness direction (Z), and a portion of the curved wall portion (2226) is higher than the curved wall portion (2225).

7. The UAV thermal management device according to claim 4, characterized in that, The bent wall portion (2225) includes a second bent plate (22254), which extends from the straight wall portion (2224) by bending. The diffuser bend (222) includes a bent wall portion (2226ˋ), which is connected to the bent wall portion (2225). Along the transverse direction (Y), the bent wall portion (2226ˋ) is located between the bent wall portion (2225) and the air inlet end (510) of the heat exchange tube. A portion of the bent wall portion (2226ˋ) forms a part of the air outlet end (2222). Along the thickness direction (Z), a portion of the bent wall portion (2226ˋ) is higher than the bent wall portion (2225).

8. The UAV thermal management device according to claim 7, characterized in that, The curved wall portion (2226ˋ) includes a straight plate (22261ˋ) and a curved plate (22262ˋ), the straight plate (22261ˋ) extending from the curved wall portion (2225) along the thickness direction (Z), and the curved plate (22262ˋ) extending along the transverse direction (Y) after being bent from the straight plate (22261ˋ).

9. The UAV thermal management device according to claim 5, characterized in that, The diffuser bend (222) has a guide plate (4), which includes a straight plate (41) and a bent plate (42). The straight plate (41) and the bent plate (42) are distributed sequentially along the air blowing direction (B) inside the diffuser bend (222). The straight plate (41) and the bent plate (42) are both fixedly connected to the inner wall of the diffuser bend (222).

10. The UAV thermal management device according to claim 5, characterized in that, The heat exchange module (3) includes a flow pipe (312), the length direction of which is parallel to the transverse direction (Y), the flow pipe (312) has multiple flow channels (3122), the multiple flow channels (3122) are arranged along the thickness direction (Z), and the diffuser end (2223) is at least lower than one of the flow channels (3122) along the thickness direction (Z).

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