CN111959794A - Cold chain logistics express delivery unmanned aerial vehicle - Google Patents
Cold chain logistics express delivery unmanned aerial vehicle Download PDFInfo
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- CN111959794A CN111959794A CN202010834218.2A CN202010834218A CN111959794A CN 111959794 A CN111959794 A CN 111959794A CN 202010834218 A CN202010834218 A CN 202010834218A CN 111959794 A CN111959794 A CN 111959794A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D9/00—Equipment for handling freight; Equipment for facilitating passenger embarkation or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D43/00—Arrangements or adaptations of instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20863—Forced ventilation, e.g. on heat dissipaters coupled to components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20881—Liquid coolant with phase change
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
- B64U2101/60—UAVs specially adapted for particular uses or applications for transporting passengers; for transporting goods other than weapons
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Remote Sensing (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a cold-chain logistics express delivery unmanned aerial vehicle which comprises a rack, a propeller mounting seat, a propeller, a temperature control assembly, an integrated control box, an express delivery box, a supporting plate, a rocker arm, a rotating shaft, a binding belt and a liquid guide pipe, wherein the propeller mounting seat is arranged on the rack; the integrated control box is arranged at the center inside the rack, a temperature control assembly is fixedly arranged on the upper surface of the rack, and an express box is arranged below the integrated control box; the invention has the advantages that: make the in-process of unmanned aerial vehicle transportation realize the low temperature commodity circulation to the cooling effect of article and make unmanned aerial vehicle's integrated control case, express delivery case have very strong shock resistance security simultaneously.
Description
Technical Field
The invention relates to an unmanned aerial vehicle, in particular to a cold-chain logistics express unmanned aerial vehicle.
Background
In the traditional cold chain logistics technology, the portable incubator and the transport vehicle are the most common. However, in the transportation mode, the influence of the traffic flow, the road conditions and other factors is great during the transportation process, and particularly for mountainous areas with complex terrain, the situation that vehicles cannot reach can occur, so that the vehicles cannot be normally transported, and the transportation range is limited. Because the complicated unmanned aerial vehicle of environment and express delivery case need have good impact resistance and heat dissipation cooling function.
By retrieval, CN201810619327.5 discloses a civil express load-carrying unmanned aerial vehicle, which comprises a loading box and an engine room, wherein the loading box is located at the bottom of the engine room; the object containing box comprises a box body and a box cover, wherein receiving probes are embedded in two sides of the top of the box cover, a second GPS plate is embedded in the front end of the top of the box cover, and grooves are embedded in the tops of two sides of the box body; the four corners of the cabin are fixedly connected with motors through supports, the top of each motor is connected with a propeller in a transmission mode, the two sides of the bottom of the cabin are embedded with transmitting probes, the middle position of the bottom of the cabin is embedded with a height sensor, and a circuit board is arranged inside the cabin. This technical scheme can't realize the cooling effect of unmanned aerial vehicle transportation to article and realize low temperature commodity circulation and do not have anti-impact security performance.
Disclosure of Invention
The invention provides a cold-chain logistics express delivery unmanned aerial vehicle aiming at the defects of the existing products.
The invention discloses a cold-chain logistics express delivery unmanned aerial vehicle which comprises a rack, a propeller mounting seat, propellers, a temperature control assembly, an integrated control box, an express delivery box, a supporting plate, a rocker arm, a rotating shaft, a binding belt and a liquid guide pipe, wherein the propeller mounting seat is arranged on the rack; four tip of frame are provided with a screw mount pad, the screw is installed at the top of screw mount pad, fixed mounting has the screw motor in the screw mount pad, screw motor output shaft and screw are connected, the screw motor passes through the wire and connects with the controller in the integrated control case, the integrated control case sets up the inside central point of frame and puts, fixed surface installs temperature control assembly in the frame, the below of integrated control case is provided with the express delivery case, the bottom of express delivery case is provided with the layer board, be provided with around the layer board and hold in the palm the ear, the layer board is through holding in the palm the ear, bandage and frame are connected, the integrated control case, the shell body of express delivery case is provided with the cavity layer, install the catheter in the cavity layer, catheter and cavity layer fill have non-Newton's fluid.
Furthermore, a controller for processing acquisition operation of sensor data and generating a logic control instruction, a centralized control cloud platform for sending a control instruction and monitoring the running state, a communication module for controlling the sending of a main board and receiving the control instruction, a temperature detection module for detecting the temperature in the integrated control box and the express box, a current regulation module for regulating the current output of a temperature control component, an attitude control module for detecting the running state of the unmanned aerial vehicle, a GPS module for positioning the unmanned aerial vehicle, a height control module for positioning the height of the unmanned aerial vehicle, an electronic speed regulator for regulating the output power of a propeller motor, a storage battery for providing electric energy and an external power supply port are installed in the integrated control box; the attitude control module, the current regulation module, the GPS module, the height control module, the electronic speed regulator and the communication module are connected with the controller; the controller is connected with the temperature control assembly through a signal wire, the communication module is connected with the centralized control cloud platform through a wireless signal, and the controller is connected with the storage battery and the external power port through a wire.
Further, the temperature control component comprises a heat dissipation box, a fan mounting seat and a cooling box body, the fan mounting seat is mounted on the upper surface of the heat dissipation box, the cooling box body is mounted below the heat dissipation box, a heat dissipation motor is mounted inside the heat dissipation box, the heat dissipation motor is a double-output shaft motor, a fan mounting shell is mounted on an upper end output shaft of the heat dissipation motor, heat dissipation fans are arranged around the fan mounting shell, a heat dissipation protective cover is arranged above the heat dissipation fans, heat dissipation fins are mounted below the fan mounting shell, cooling fins are mounted in a fit manner and are provided with refrigeration fins, a first gear is mounted on a lower end output shaft of the heat dissipation motor, the first gear and a second gear are mutually meshed, the first gear and the second gear are mounted inside a circulation output shell, the circulation output shell is fixedly mounted inside a cooling cavity of the cooling box body, the inner space of the cooling cavity is divided into a high-pressure area and a low-pressure area by the circulating output shell, an outlet of the high-pressure area is fixedly connected with one end of the cooling liquid outlet joint, the cooling liquid return joint, the cooling liquid outlet joint and the liquid guide pipe are fixedly connected, and the liquid guide pipe is arranged in a hollow layer of the integrated control box and the express box.
Furthermore, the cooling liquid return joint, the cooling liquid outlet joint and the liquid guide pipe are fixedly connected, the vibration generation assembly is installed on the outer wall of the liquid guide pipe, and the liquid guide pipe is installed in the hollow layer of the integrated control box and the hollow layer of the express box.
Further, the vibration generating assembly comprises a lower base, an upper cover sleeve, a lower vibration ring, an upper vibration ring, a spring, a pressure plate, a sealing element and a power supply connector; the middle part of the lower base is provided with a step mounting hole, the step mounting hole is provided with a lower vibration ring, the upper end part of the lower base is provided with an upper vibration ring, an upper cover sleeve is sleeved outside the lower base, the upper end part of the upper cover sleeve is fixedly provided with a pressing plate, and an upper vibration ring is arranged between the lower surface of the pressing plate and the lower base; a through hole is formed in the middle of the lower base and used for installing a liquid guide pipe, so that the outer wall of the liquid guide pipe is respectively in contact connection with the inner walls of the lower vibration ring and the upper vibration ring; the lower base is provided with a connecting hole, and the connecting hole is used for connecting the lead of the lower vibration ring and the upper vibration ring with the power supply connector; the vibration generation assembly is wrapped by a waterproof silica gel layer.
Furthermore, the upper vibration ring is formed by tightly bonding three piezoelectric ceramic rings and two metal rings with the same height as the piezoelectric ceramic rings along the radial direction, and the upper vibration ring is provided with an outer piezoelectric ceramic ring, a first metal ring, a middle piezoelectric ceramic ring, a second metal ring and an inner piezoelectric ceramic ring which are arranged outwards and inwards in sequence; the piezoelectric ceramic rings are polarized along the radial direction, silver electrodes are plated on the inner wall and the outer wall of each piezoelectric ceramic ring, and the three piezoelectric ceramic rings are respectively connected with a power supply connector through leads L1, L2 and L3; the lower vibration ring is polarized along the axial direction, and the inner wall and the outer wall are both plated with silver electrodes.
Further, through gradual change threaded connection between lower base and the upper cover, the bellying of lower base is four independent threaded connection portion, and when the upper cover down rotated through the screw, four independent threaded connection portion that can make lower base inwards extrude for vibration ring and the catheter in the middle of the inseparable laminating of last vibration ring will be down to lower base.
Furthermore, the radiator protective cover comprises a shell box body, a spiral protective cover and a supporting frame; a spiral protective cover is arranged on the upper surface of the shell box body; the spiral protective cover is fixedly connected with the shell box body through a supporting frame, the end part of the supporting frame is fixedly connected with the shell box body through a bolt, and the cooling coil is spirally embedded in the radiating fin; the cooling coil and the spiral protective cover are both made of hollow copper tubes; the cooling coil is communicated with the spiral protective cover, and volatile cooling liquid is filled in the cooling coil; the upper portion of fin is provided with several rows of perpendicular fins, and the lower part is smooth heat conduction base plate, and the hot junction laminating of heat conduction base plate and refrigeration piece, the cooling coil of installation is inlayed to perpendicular fin, transmits perpendicular fin after the heat conduction base plate absorbs the heat, and the spiral cooling tube between the perpendicular fin absorbs the heat inside volatile coolant liquid heat absorption change gas of back and rises to the last safety cover of spiral protection casing.
Furthermore, two circulation output shells which are connected in series side by side are arranged in the cooling cavity, the cooling cavity forms a low-pressure area, a pressurizing area and a high-pressure area, the outlet of the high-pressure area outputs non-Newtonian fluid cooling liquid through a cooling liquid outlet joint, and the two circulation output shells are correspondingly provided with gear sets of the output shafts of the heat dissipation motors.
Furthermore, a circulating output shell is arranged in the cooling cavity, the cooling cavity forms a low-pressure area, a high-pressure area and a stirring device, a non-Newtonian fluid cooling liquid is output from an outlet of the high-pressure area through a cooling liquid outlet connector, the circulating output shell is correspondingly provided with a gear set of an output shaft of a heat dissipation motor, and the stirring device is fixedly connected with the tail end of the output shaft of the other heat dissipation motor.
The invention has the beneficial effects that:
(1) according to the invention, the vibration generating assembly is matched with the non-Newtonian fluid cooling liquid, the low-frequency vibration of the vibration generating assembly can accelerate convection among molecules of the non-Newtonian fluid cooling liquid after cold quantity exchange with the temperature controller, and reduce the using amount of the non-Newtonian fluid cooling liquid, so that low-temperature logistics can be realized under the cooling effect on articles in the transportation process of the unmanned aerial vehicle, and meanwhile, the integrated control box and the express box of the unmanned aerial vehicle have impact resistance safety.
(2) The structural design of the temperature control assembly can be accurately cooled, the cooling efficiency is improved, the volume and the weight of the temperature control assembly are reduced, the non-Newtonian fluid cooling liquid can absorb and store a large amount of cold energy at a low temperature, a large amount of cold energy can be emitted for a long time, and the volume of the temperature control assembly can be greatly reduced.
Drawings
Fig. 1 is a perspective view of the overall structure of the present invention.
Fig. 2 is a cross-sectional view of the overall structure of the present invention.
Fig. 3 is a left side view of the overall structure of the present invention.
Fig. 4 is a top view of the overall structure of the present invention.
Fig. 5 is a schematic structural diagram of a temperature control assembly according to the present invention.
Fig. 6 is a sectional view showing the structure of the temperature control assembly of the present invention.
Fig. 7 is a schematic structural view of the vibration generating assembly of the present invention.
Fig. 8 is a top view of the vibration generating assembly of the present invention.
Fig. 9 is a schematic structural view of the vibration ring of the present invention.
Fig. 10 is a schematic structural diagram of a lower base of the present invention.
Fig. 11 is a schematic diagram of the controller of the present invention.
Figure 12 is a schematic view of the catheter of the present invention.
Fig. 13 is a schematic structural diagram of a cycle output housing according to a fourth embodiment of the present invention.
Fig. 14 is a schematic structural diagram of a cycle output housing according to a fifth embodiment of the present invention.
Fig. 15 is a schematic structural view of a cycle output housing according to a sixth embodiment of the present invention.
Fig. 16 is a schematic structural diagram of a heat sink protective cover according to a third embodiment of the present invention.
In the figure: the cooling device comprises a rack 1, a propeller mounting seat 2, a propeller 3, a temperature control component 4, an integrated control box 5, an express box 6, a supporting plate 7, a rocker arm 8, a rotating shaft 9, a binding belt 10, a liquid guide pipe 11, a heat dissipation box 31, a fan mounting seat 32, a cooling box body 33, a cooling liquid return joint 34, a cooling liquid outlet joint 35, a heat sink protective cover 301, a heat dissipation fan 302, a heat dissipation motor output shaft 303, a heat dissipation motor 304, a heat dissipation fan mounting seat 305, a circulating output shell 306, a first gear 307, a heat dissipation fin 308, a refrigeration sheet 309, a second gear 310, a cooling cavity 311, a cooling coil 312, a vibration generation component 100, a lower base 101, an upper cover sleeve 102, a lower vibration ring 103, an upper vibration ring 104, a spring 105, a pressing plate 106, a sealing piece.
Detailed Description
The present invention will be further described with reference to the following examples.
Detailed description of the preferred embodiment
As shown in fig. 1-3; the cold-chain logistics express delivery unmanned aerial vehicle comprises a rack 1, a propeller mounting seat 2, a propeller 3, a temperature control assembly 4, an integrated control box 5, an express delivery box 6, a supporting plate 7, a rocker arm 8, a rotating shaft 9, a binding belt 10 and a liquid guide pipe 11; four end parts of the machine frame 1 are provided with 4 propeller mounting seats 2, the top parts of the propeller mounting seats 2 are provided with propellers 3, propeller motors are fixedly arranged in the propeller mounting seats 2, propeller motor output shafts are connected with the propellers 3, the propeller motors are connected with controllers in an integrated control box 5 through wires, the integrated control box 5 is arranged at the central position in the machine frame 1, the upper surface of the machine frame 1 is fixedly provided with a temperature control component 4, an express box 6 is arranged below the integrated control box 5, the bottom of the express box 6 is provided with a supporting plate 7, supporting lugs are arranged around the supporting plate 7 and are connected with the machine frame 1 through binding bands 10, the shell bodies of the integrated control box 5 and the express box 6 are provided with hollow layers, liquid guide pipes 11 are installed in the hollow layers, the liquid guide pipes 11 and the hollow layers are filled with non-Newtonian fluid cooling liquid, and the liquid guide pipes 11 are connected with the temperature control component 4.
As shown in fig. 11, a controller for processing acquisition operation of sensor data and generating a logic control command, a centralized control cloud platform for sending a control command and monitoring an operation state, a communication module for controlling sending of a main board and receiving of the control command, a temperature detection module for detecting a temperature in the integrated control box 5 and the express box 6, a current adjustment module for adjusting a current output of the temperature control component 4, an attitude control module for detecting an operation state of the unmanned aerial vehicle, a GPS module for positioning the unmanned aerial vehicle, a height control module for positioning the height of the unmanned aerial vehicle, an electronic speed regulator for adjusting an output power of a propeller motor, a storage battery for providing electric energy, and an external power port are installed in the integrated control box 5;
the control motherboard employs STM32F427/437 microcontroller from STMicroelectronics, Inc., which provides enhanced input/output and peripherals including Serial Audio Interface (SAI), DAC, ADC, 16-bit/32-bit timer, true Random Number Generator (RNG) and RTC, and the power-saving mode has low power application functions.
The attitude control module adopts an MPU-6000 chip of a TDK company which integrates a triaxial angular rate gyro and a triaxial accelerometer, and integrates AD acquisition and resolving cores and a temperature sensor.
The temperature detection module adopts a waterproof patch type PT100 temperature sensor, and the temperature sensor is connected with the control mainboard through a signal line. The control mainboard has good operational performance and makes unmanned aerial vehicle can realize temperature monitoring, realizes accurate cooling through temperature control component.
As shown in fig. 5, 6, 12; the temperature control component 4 comprises a heat dissipation box 31, a fan mounting seat 32 and a cooling box body 33, the fan mounting seat 32 is mounted on the upper surface of the heat dissipation box 31, the cooling box body 33 is mounted below the heat dissipation box 31, a heat dissipation motor 304 is mounted inside the heat dissipation box 31, the heat dissipation motor 304 is a motor with double output shafts, a fan mounting shell 305 is mounted on an upper end output shaft of the heat dissipation motor 304, heat dissipation fans 302 are arranged around the fan mounting shell 305, a heat dissipation protective cover 301 is arranged above the heat dissipation fans 302, heat dissipation fins 308 are mounted below the fan mounting shell 305, cooling fins 309 are mounted by fitting of the heat dissipation fins 308, a first gear 307 and a second gear 310 are mounted on a lower end output shaft of the heat dissipation motor 304 and are mutually meshed, the first gear 307 and the second gear 310 are mounted inside a circulation output shell 306, the circulation output shell 306 is fixedly mounted inside, the cavity of the cooling cavity 311 is filled with non-Newtonian fluid cooling liquid, the internal space of the cooling cavity 311 is divided into a high-pressure region and a low-pressure region by the circular output shell 306, the outlet of the high-pressure region is fixedly connected with one end of the cooling liquid outlet joint 35, the cooling liquid return joint 34, the cooling liquid outlet joint 35 and one end of the main pipe 11a of the liquid guide pipe 11 are fixedly connected, and two sides of the liquid guide pipe 11 are symmetrically arranged in the hollow layers of the integrated control box 5 and the express delivery box 6; the liquid guide tube 11 comprises a main tube 11a, a short side tube 11b, a long side tube 11c and an upper side tube 11 d; the two sides of the main pipe 11a are uniformly distributed with a plurality of short side pipes 11b and long side pipes 11c, and the long side pipe 11c at the top end is uniformly arranged with an upper side pipe 11 d. The main pipe 11a of one side of the liquid guide pipe 11 is used for being connected with a cooling liquid outlet joint 35 of the temperature control assembly 4, the non-Newtonian fluid cooling liquid is output to the hollow layer from the short side pipe 11b, the long side pipe 11c and the upper side pipe 11d, and the non-Newtonian fluid cooling liquid enters the main pipe 11a from the short side pipe 11b, the long side pipe 11c and the upper side pipe 11d of the other liquid guide pipe 11 and then circulates back to the cooling liquid return joint 34 to enter the cooling cavity 311.
The non-Newtonian fluid cooling liquid consists of 1-5% of sodium carboxymethyl cellulose, 30-50% of inorganic salt, 1-5% of nano particles and the balance of deionized water in percentage by mass; the nano particles are one or more of Al2O3, Cu and graphene; the inorganic salt is one or combination of calcium chloride and magnesium chloride.
Sodium carboxymethyl cellulose anionic cellulose ethers as a base fluid for non-Newtonian fluids; is easy to dissolve in water to form a solution with certain viscosity, and has large cold capacity, no toxicity and no smell; the inorganic salt is one or combination of calcium chloride and magnesium chloride, so that the freezing point is lowered, more cold energy can be stored, and the non-Newtonian fluid cooling liquid is prevented from being frozen. The nano-particles are Al2O3The nano particles can quickly absorb heat and transfer the heat, the problems of high viscosity and thick heat transfer boundary layer of non-Newtonian fluid cooling liquid can be effectively solved, and the nano particles can fully absorb the heat as a middle heat-conducting medium and transfer the heat to the inner layer nano particlesParticles and non-newtonian fluid coolant liquid molecules.
The non-Newtonian fluid cooling liquid has large cold storage capacity and long heat release time, the using amount of the cooling liquid can be greatly reduced, when the non-Newtonian fluid cooling liquid is impacted, particles in a suspension state in the non-Newtonian fluid cooling liquid can be suddenly aggregated into particle clusters, and the particle clusters can instantly generate larger viscosity along with the increase of pressure, so that the shock resistance effect is achieved, and the integrated control box 5 and the express box 6 can be well protected.
The non-Newtonian fluid cooling liquid can absorb and store a large amount of cold energy at low temperature, and can release a large amount of cold energy at higher temperature and has strong shock resistance.
The refrigerating plate 309 is a semiconductor refrigerating plate, temperature adjustment is accurate, and the temperature can be changed through the magnitude of input current.
The design of the cooling fan 302 is beneficial to the hot end of the refrigeration sheet 309 to quickly cool, so that the cold end of the refrigeration sheet 309 generates stable and quick temperature reduction.
The first gear 307 and the second gear 310 are installed on the inner wall of the circulation output shell 306, the first gear 307 drives the second gear 310 to rotate, so that a high-pressure area and a low-pressure area are formed inside the cooling cavity 311, and the design is favorable for flowing cooling of the non-Newtonian fluid cooling liquid in the cooling cavity 311, and meanwhile, the heat transfer effect is prevented from being influenced by uneven distribution caused by precipitation of nano particles in the non-Newtonian fluid cooling liquid.
The cooling cavity 311, the integrated control box 5 and the express box 6 are provided with heat-insulating inner layers, the heat-insulating inner layers can effectively prevent cold energy generated by the refrigerating fins 308 from being leaked, and the structure, the material and the installation mode of the heat-insulating inner layers are not described in detail in the prior art.
The second embodiment,
As shown in fig. 7, 8, 9; the other steps are the same as the first embodiment, except that the cooling liquid return joint 34, the cooling liquid outlet joint 35 and the liquid guide tube 11 are fixedly connected, the vibration generating assembly 100 is installed on the outer wall of the liquid guide tube 11, and the liquid guide tube 11 is installed in the hollow layer of the integrated control box 5 and the express box 6.
The vibration generating assembly 100 comprises a lower base 101, an upper cover sleeve 102, a lower vibration ring 103, an upper vibration ring 104, a spring 105, a pressure plate 106, a sealing member 107 and a power supply connector 108; a step mounting hole is formed in the middle of the lower base 101, a lower vibration ring 103 is mounted in the step mounting hole, an upper vibration ring 104 is mounted at the upper end of the lower base 101, an upper cover sleeve 102 is sleeved outside the lower base 101, a pressing plate 106 is fixedly mounted at the upper end of the upper cover sleeve 102, and the upper vibration ring 104 is arranged between the lower surface of the pressing plate 106 and the lower base 101; a through hole is formed in the middle of the lower base 101 and used for installing the liquid guide tube 11, so that the outer wall of the liquid guide tube 11 is respectively in contact connection with the inner walls of the lower vibration ring 103 and the upper vibration ring 104; the lower base 101 is provided with a connecting hole, and the connecting hole is used for connecting the leads of the lower vibration ring 103 and the upper vibration ring 104 with the power supply connector 108; the vibration generating assembly 100 is wrapped with a waterproof silica gel layer.
The upper vibration ring 104 is formed by tightly bonding three piezoelectric ceramic rings and two metal rings with the same height as the piezoelectric ceramic rings along the radial direction, and comprises an outer piezoelectric ceramic ring 1041, a first metal ring 1042, a middle piezoelectric ceramic ring 1043, a second metal ring 1044 and an inner piezoelectric ceramic ring 1045 which are arranged outwards and inwards in sequence; the piezoelectric ceramic rings are polarized along the radial direction, silver electrodes are plated on the inner wall and the outer wall of each piezoelectric ceramic ring, and the three piezoelectric ceramic rings are respectively connected with a power supply connector 108 through leads L1, L2 and L3;
the lower vibration ring 103 is polarized along the axial direction, and silver electrodes are plated on the inner wall and the outer wall; axial vibrations that can be generated;
because the inner diameters of the outer piezoelectric ceramic ring 1041, the middle piezoelectric ceramic ring 1043 and the inner piezoelectric ceramic ring 1045 are large to small, due to the inverse piezoelectric effect of the piezoelectric ceramic rings, the radial vibrations with different frequencies can be generated by applying alternating voltages through the leads L1, L2 and L3; catheter 11 is designed so that it and the vibration generating assembly can resonate quickly.
The lower base 101 and the upper cover sleeve 102 are connected through gradual change threads, the protruding parts of the lower base 101 are four independent threaded connection parts 1011, and when the upper cover sleeve 102 rotates downwards through threads, the four independent threaded connection parts of the lower base 101 can be extruded inwards, so that the lower base 101 tightly attaches the lower vibration ring 103 and the upper vibration ring 104 to the middle catheter 11.
The liquid guide tube 11 is used for transmitting the non-Newtonian fluid cooling liquid and simultaneously used as a vibration generating tube to transmit low-frequency vibration waves to the non-Newtonian fluid cooling liquid inside through the liquid guide tube 11, and the low-frequency vibration can accelerate convection among molecules of the non-Newtonian fluid cooling liquid, so that the heat dissipation efficiency is improved.
The third concrete example,
As shown in fig. 16, the other steps are the same as the first embodiment except that the heat sink protective cover 301 of the temperature control module 4 has a different structure.
The heat radiator protective cover 301 comprises a shell box body 3011, a spiral protective cover 3012 and a support 3013; a spiral protective cover 3012 is arranged on the upper surface of the shell box 3011; the spiral protective cover 3012 is fixedly connected with the outer casing body 3011 through a support 3013, the end of the support 3013 is fixedly connected with the outer casing body 3011 through a bolt, and the cooling coil 312 is spirally embedded in the radiating fin 308; the cooling coil 312 and the spiral protective cover 3012 are both made of hollow copper tubes; the cooling coil 312 communicates with the spiral shroud 3012.
The upper part of the radiating fin 308 is provided with a plurality of rows of vertical fins, the lower part is a flat heat conducting substrate, the heat conducting substrate is attached to the hot end of the refrigerating fin, the contact area is large, heat conduction is facilitated, the vertical fins are embedded into the installed cooling coil 312, the heat conducting substrate absorbs heat and then transfers the heat to the vertical fins, and after absorbing heat, the spiral cooling pipe between the vertical fins absorbs heat, volatile cooling liquid in the spiral cooling pipe absorbs heat and then changes gas to rise to the upper protective cover of the spiral protective cover 3012; the heat of the heat radiating fins 308 is removed by the heat radiating fan 302, the spiral protective cover 3012 has an upper-lower temperature difference, the upper protective cover on the upper portion of the heat radiating fan 302 is cooled, the volatile cooling liquid is changed from a gas state to a liquid state and flows back into the cooling coil 312, the heat at the hot end of the refrigerating fins can be further rapidly absorbed, the heat radiating efficiency is effectively improved, the size can be further reduced, and the application range and the heat radiating efficiency of the refrigerating fins can be improved.
The fourth concrete example,
As shown in fig. 13, the other steps are the same as the first embodiment except that the internal structure of the circulation output case 306 in the cooling chamber 311 of the temperature control unit 4 is different;
two parallel circulating output shells 306 are arranged in the cooling cavity 311, the cooling cavity 311 forms two low-pressure regions and two high-pressure regions, the outlets of the high-pressure regions output non-Newtonian fluid cooling liquid after being combined through a cooling liquid outlet joint 35 and a pipeline, the two circulating output shells 306 are correspondingly provided with gear sets of the output shaft 303 of the heat dissipation motor, and the two parallel circulating output shells 306 can ensure that the temperature control assembly 4 is used by one for ensuring the normal operation of the cooling system, and can also be completely opened under the condition of non-ideal temperature reduction, so that the circulation of the non-Newtonian fluid cooling liquid in the integrated control box 5 and the express box 6 is accelerated.
The concrete examples are,
As shown in fig. 14, the other steps are the same as the first embodiment except that the internal structure of the circulation output case 306 in the cooling chamber 311 of the temperature control unit 4 is different; two circulation output shells 306 connected in series side by side are arranged in the cooling cavity 311, the cooling cavity 311 forms a low-pressure region, a pressurization region and a high-pressure region, the outlet of the high-pressure region outputs non-Newtonian fluid cooling liquid through the cooling liquid outlet joint 35, the two circulation output shells 306 are correspondingly provided with gear sets of the heat dissipation motor output shaft 303, the circulation output shells 306 connected in series enable the non-Newtonian fluid cooling liquid to realize secondary pressurization in the output process, under the condition that the volumes of the integrated control box 5 and the express delivery box 6 are large, the output pressure is increased to ensure the fluid flowing pressure, and then rapid cooling is realized.
The sixth embodiment,
As shown in fig. 15, the other steps are the same as the first embodiment except that the internal structure of the circulation output case 306 in the cooling chamber 311 of the temperature control unit 4 is different; the cooling cavity 311 is internally provided with a circulating output shell 306, the cooling cavity 311 forms a low-pressure area, a high-pressure area and a stirring device, the outlet of the high-pressure area outputs non-Newtonian fluid cooling liquid through a cooling liquid outlet connector 35, the circulating output shell 306 is correspondingly provided with a gear set of a heat dissipation motor output shaft 303, the stirring device is fixedly connected with the tail end of the other heat dissipation motor output shaft 303, and the stirring device can accelerate convection among molecules of the non-Newtonian fluid cooling liquid while placing the non-Newtonian fluid cooling liquid precipitate, so that the temperature is rapidly reduced.
The use principle is as follows: when the civil express unmanned aerial vehicle is used, the external port of the power supply is opened, the temperature control assembly 4 enables the non-Newtonian fluid cooling liquid of the hollow layers of the integrated control box 5 and the express box 6 to store cold, when transportation is needed, goods are loaded into the express box 6 to strain the binding band 10, the centralized control cloud platform sends a transportation instruction, a transportation route is planned through the GPS module, and when the temperature sensor detects that the temperature in the express box 6 rises in the transportation process, electric energy is provided for the temperature control assembly through the storage battery to keep the temperature in the express box 6.
According to the invention, the vibration generating assembly and the non-Newtonian fluid cooling liquid are used in a matching manner, the low-frequency vibration of the vibration generating assembly can accelerate convection among molecules of the non-Newtonian fluid cooling liquid after cold energy is exchanged with the temperature controller, the using amount of the non-Newtonian fluid cooling liquid is reduced, low-temperature logistics is realized under the cooling effect on articles in the transportation process of the unmanned aerial vehicle, and meanwhile, the integrated control box and the express box of the unmanned aerial vehicle have impact resistance safety, the structural design of the temperature control assembly can be accurately cooled, the cooling efficiency is improved, the volume and the weight of the temperature control assembly are reduced, the non-Newtonian fluid cooling liquid can absorb and store a large amount of cold energy at low temperature, a large amount of cold energy can be released for.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A cold-chain logistics express delivery unmanned aerial vehicle comprises a rack, a propeller mounting seat, propellers, a temperature control assembly, an integrated control box, an express delivery box, a supporting plate, a rocker arm, a rotating shaft, a binding belt and a liquid guide pipe; the integrated control box is characterized in that the four end parts of the rack are provided with propeller mounting seats, propellers are mounted at the tops of the propeller mounting seats, propeller motors are fixedly mounted in the propeller mounting seats, output shafts of the propeller motors are connected with the propellers, the propeller motors are connected with controllers in the integrated control box through wires, the integrated control box is arranged in the center of the inside of the rack, a temperature control assembly is fixedly mounted on the upper surface of the rack, an express box is arranged below the integrated control box, a supporting plate is arranged at the bottom of the express box, supporting lugs are arranged on the periphery of the supporting plate, the supporting plate is connected with the rack through the supporting lugs and a bandage, hollow layers are arranged on the shells of the integrated control box and the express box, a liquid guide pipe is mounted in each hollow layer, non-Newtonian fluid cooling liquid.
2. The unmanned aerial vehicle for cold-chain logistics express delivery of claim 1, a controller for processing acquisition operation of sensor data and generating a logic control instruction, a centralized control cloud platform for sending a control instruction and monitoring the running state, a communication module for controlling the sending of a main board and receiving the control instruction, a temperature detection module for detecting the temperature in the integrated control box and the express box, a current regulation module for regulating the current output of a temperature control component, an attitude control module for detecting the running state of the unmanned aerial vehicle, a GPS module for positioning the unmanned aerial vehicle, a height control module for positioning the height of the unmanned aerial vehicle, an electronic speed regulator for regulating the output power of a propeller motor, a storage battery for providing electric energy and an external power port are arranged in the integrated control box; the attitude control module, the current regulation module, the GPS module, the height control module, the electronic speed regulator and the communication module are connected with the controller; the controller is connected with the temperature control assembly through a signal wire, the communication module is connected with the centralized control cloud platform through a wireless signal, and the controller is connected with the storage battery and the external power port through a wire.
3. The unmanned aerial vehicle for cold-chain logistics express delivery of claim 1, wherein the temperature control assembly comprises a heat dissipation box, a fan mounting seat and a cooling box body, the fan mounting seat is mounted on the upper surface of the heat dissipation box, the cooling box body is mounted below the heat dissipation box, a heat dissipation motor is mounted inside the heat dissipation box and is a double-output-shaft motor, the fan mounting seat is mounted on an upper-end output shaft of the heat dissipation motor, a heat dissipation fan is arranged on the periphery of the fan mounting seat, a heat dissipation protective cover is arranged above the heat dissipation fan, heat dissipation fins are mounted below the fan mounting seat and are attached to each other, a refrigerating fin is mounted on the heat dissipation motor, a first gear is mounted on a lower-end output shaft of the heat dissipation motor and is meshed with a second gear, the first gear and the second gear are mounted inside a circulation output shell, and the circulation, non-Newtonian fluid cooling liquid is filled in the cavity of the cooling cavity, the inner space of the cooling cavity is divided into a high-pressure area and a low-pressure area by the circulating output shell, the outlet of the high-pressure area is fixedly connected with one end of the cooling liquid outlet connector, the cooling liquid return connector, the cooling liquid outlet connector and the liquid guide pipe are fixedly connected, and the liquid guide pipe is arranged on the hollow layer of the integrated control box and the express box.
4. The unmanned aerial vehicle for cold-chain logistics and express delivery as claimed in claim 1, wherein the cooling liquid return joint, the cooling liquid outlet joint and the liquid guide pipe are fixedly connected, the vibration generation assembly is mounted on the outer wall of the liquid guide pipe, and the liquid guide pipe is mounted on a hollow layer of the integrated control box and the express delivery box.
5. The unmanned aerial vehicle for cold-chain logistics express delivery of claim 4, wherein the vibration generating assembly comprises a lower base, an upper cover sleeve, a lower vibration ring, an upper vibration ring, a spring, a pressure plate, a sealing element and a power supply connector; the middle part of the lower base is provided with a step mounting hole, the step mounting hole is provided with a lower vibration ring, the upper end part of the lower base is provided with an upper vibration ring, an upper cover sleeve is sleeved outside the lower base, the upper end part of the upper cover sleeve is fixedly provided with a pressing plate, and an upper vibration ring is arranged between the lower surface of the pressing plate and the lower base; a through hole is formed in the middle of the lower base and used for installing a liquid guide pipe, so that the outer wall of the liquid guide pipe is respectively in contact connection with the inner walls of the lower vibration ring and the upper vibration ring; the lower base is provided with a connecting hole, and the connecting hole is used for connecting the lead of the lower vibration ring and the upper vibration ring with the power supply connector; the vibration generation assembly is wrapped by a waterproof silica gel layer.
6. The unmanned aerial vehicle for cold-chain logistics and express delivery of claim 4, wherein the upper vibration ring is formed by tightly bonding three piezoelectric ceramic rings and two metal rings with the same height as the piezoelectric ceramic rings in the radial direction, and the upper vibration ring is provided with an outer piezoelectric ceramic ring, a first metal ring, a middle piezoelectric ceramic ring, a second metal ring and an inner piezoelectric ceramic ring which are arranged in sequence from outside to inside; the piezoelectric ceramic rings are polarized along the radial direction, silver electrodes are plated on the inner wall and the outer wall of each piezoelectric ceramic ring, and the three piezoelectric ceramic rings are respectively connected with a power supply connector through leads L1, L2 and L3; the lower vibration ring is polarized along the axial direction, and the inner wall and the outer wall are both plated with silver electrodes.
7. The cold-chain logistics express delivery unmanned aerial vehicle of claim 4, wherein the lower base and the upper cover sleeve are connected through gradual change threads, the protruding portion of the lower base is four independent threaded connection portions, and when the upper cover sleeve rotates downwards through threads, the four independent threaded connection portions of the lower base can be extruded inwards, so that the lower base can enable the lower vibration ring and the upper vibration ring to be tightly attached to the middle liquid guide pipe.
8. The unmanned aerial vehicle for cold-chain logistics express delivery of claim 3, wherein the radiator protective cover comprises a housing box body, a spiral protective cover and a supporting frame; a spiral protective cover is arranged on the upper surface of the shell box body; the spiral protective cover is fixedly connected with the shell box body through a supporting frame, the end part of the supporting frame is fixedly connected with the shell box body through a bolt, and the cooling coil is spirally embedded in the radiating fin; the cooling coil and the spiral protective cover are both made of hollow copper tubes; the cooling coil is communicated with the spiral protective cover, and volatile cooling liquid is filled in the cooling coil; the upper portion of fin is provided with several rows of perpendicular fins, and the lower part is smooth heat conduction base plate, and the hot junction laminating of heat conduction base plate and refrigeration piece, the cooling coil of installation is inlayed to perpendicular fin, transmits perpendicular fin after the heat conduction base plate absorbs the heat, and the spiral cooling tube between the perpendicular fin absorbs the heat inside volatile coolant liquid heat absorption change gas of back and rises to the last safety cover of spiral protection casing.
9. The cold-chain logistics express delivery unmanned aerial vehicle as claimed in claim 3, wherein two circulation output shells are arranged in the cooling cavity in parallel and in series, the cooling cavity forms a low-pressure area, a pressurization area and a high-pressure area, a non-Newtonian fluid cooling liquid is output from an outlet of the high-pressure area through a cooling liquid outlet joint, and the two circulation output shells are correspondingly provided with gear sets of output shafts of heat dissipation motors.
10. The unmanned aerial vehicle for cold-chain logistics and express delivery as claimed in claim 3, wherein a circulating output shell is arranged inside the cooling cavity, the cooling cavity forms a low-pressure area, a high-pressure area and a stirring device, a non-Newtonian fluid cooling liquid is output from an outlet of the high-pressure area through a cooling liquid outlet joint, the circulating output shell is correspondingly provided with a gear set of an output shaft of a heat dissipation motor, and the stirring device is fixedly connected with the tail end of the output shaft of the other heat dissipation motor.
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|---|---|---|---|
| CN202010834218.2A CN111959794A (en) | 2020-08-19 | 2020-08-19 | Cold chain logistics express delivery unmanned aerial vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478173A (en) * | 2020-12-01 | 2021-03-12 | 哈尔滨铭川运输有限公司 | Light package clamping and fixing device convenient for unmanned aerial vehicle transportation and using method |
| CN112572795A (en) * | 2020-12-22 | 2021-03-30 | 济南职业学院 | Campus unmanned aerial vehicle delivery robot |
| JP7472812B2 (en) | 2021-02-03 | 2024-04-23 | トヨタ自動車株式会社 | Multicopter |
-
2020
- 2020-08-19 CN CN202010834218.2A patent/CN111959794A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112478173A (en) * | 2020-12-01 | 2021-03-12 | 哈尔滨铭川运输有限公司 | Light package clamping and fixing device convenient for unmanned aerial vehicle transportation and using method |
| CN112572795A (en) * | 2020-12-22 | 2021-03-30 | 济南职业学院 | Campus unmanned aerial vehicle delivery robot |
| CN112572795B (en) * | 2020-12-22 | 2022-06-07 | 济南职业学院 | Campus unmanned aerial vehicle delivery robot |
| JP7472812B2 (en) | 2021-02-03 | 2024-04-23 | トヨタ自動車株式会社 | Multicopter |
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Application publication date: 20201120 |