CN110606210A - Plant protection unmanned aerial vehicle heat dissipation waterproof construction - Google Patents
Plant protection unmanned aerial vehicle heat dissipation waterproof construction Download PDFInfo
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- CN110606210A CN110606210A CN201910869359.5A CN201910869359A CN110606210A CN 110606210 A CN110606210 A CN 110606210A CN 201910869359 A CN201910869359 A CN 201910869359A CN 110606210 A CN110606210 A CN 110606210A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims description 9
- 238000001816 cooling Methods 0.000 claims description 36
- 238000009423 ventilation Methods 0.000 claims description 19
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 14
- 229910052753 mercury Inorganic materials 0.000 claims description 14
- 230000009471 action Effects 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 235000011089 carbon dioxide Nutrition 0.000 claims description 10
- 238000000859 sublimation Methods 0.000 claims description 6
- 230000008022 sublimation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 230000002265 prevention Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 241000883990 Flabellum Species 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000575 pesticide Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- -1 seed Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000037072 sun protection Effects 0.000 description 1
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
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
-
- 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
- B64D27/00—Arrangement or mounting of power plants in aircraft; Aircraft characterised by the type or position of power plants
- B64D27/02—Aircraft characterised by the type or position of power plants
- B64D27/24—Aircraft characterised by the type or position of power plants using steam or spring force
-
- 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
- B64D33/00—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for
- B64D33/08—Arrangements in aircraft of power plant parts or auxiliaries not otherwise provided for of power plant cooling systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/19—Propulsion using electrically powered motors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Remote Sensing (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a heat dissipation waterproof structure of a plant protection unmanned aerial vehicle, which comprises a battery compartment, a wind wheel and an eccentric spring; the battery compartment comprises an outer shell, an inner shell, an air inlet, a vent and a first cavity; the inner shell is positioned between the battery and the outer shell and fixedly connected with the outer shell; the first cavity is positioned between the inner shell and the outer shell and is a closed space; the eccentric spring is positioned in the first cavity at two sides of the inner shell, is fixed between the outer shell and the inner shell through a support and can rotate around a shaft on the support; wind wheels are arranged in the two air inlets at the positions corresponding to the two ends of the eccentric spring and can rotate around a shaft; the device has a simple structure, and the rotating eccentric spring stirs and accelerates the air flow in the first cavity, accelerates the cold air flow rate on the surface of the box body battery, accelerates the temperature reduction of the battery in the box body, and prevents the battery from being overhigh in temperature when the plant protection unmanned aerial vehicle works under heavy load.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a heat dissipation waterproof structure of a plant protection unmanned aerial vehicle.
Background
An unmanned aircraft, abbreviated as "drone", and abbreviated in english as "UAV", is an unmanned aircraft that is operated by a radio remote control device and a self-contained program control device, or is operated autonomously, either completely or intermittently, by an onboard computer.
Drones tend to be more suitable for tasks that are too "fool, dirty, or dangerous" than are manned aircraft. Unmanned aerial vehicles can be classified into military and civil applications according to the application field. For military use, unmanned aerial vehicles divide into reconnaissance aircraft and target drone. In the civil aspect, the unmanned aerial vehicle is really just needed by the unmanned aerial vehicle in addition to industrial application; at present, the unmanned aerial vehicle is applied to the fields of aerial photography, agriculture, plant protection, miniature self-timer, express transportation, disaster relief, wild animal observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, romantic manufacturing and the like, the application of the unmanned aerial vehicle is greatly expanded, and developed countries actively expand industrial application and develop unmanned aerial vehicle technology.
Plant protection unmanned aerial vehicle, also called unmanned vehicles, as the name implies is the unmanned aircraft who is used for agriculture and forestry plant protection operation, and this type unmanned aircraft comprises flight platform (fixed wing, helicopter, multiaxis aircraft), navigation flight control, spraying mechanism triplex, flies through ground remote control or navigation and controls, realizes spraying the operation, can spray medicament, seed, powder etc..
The unmanned small helicopter has the advantages of low operation height, less drift, capability of hovering in the air, no need of a special take-off and landing airport, capability of increasing the penetrability of fog flow to crops due to downward airflow generated by the rotor wing, high prevention and control effect, remote control operation, capability of avoiding the danger of pesticide exposure of spraying operation personnel, and improvement on the safety of spraying operation and the like. In addition, the spraying mode adopted by the spraying technology of the electric unmanned helicopter can save the pesticide usage by at least 50 percent and the water usage by 90 percent, thereby greatly reducing the resource cost. However, the existing electric unmanned aerial vehicle carries a large amount of pesticides in the flying process, and has a large load, so that the unmanned aerial vehicle is required to have large lift force, so that the power of an unmanned motor is large, the discharge current of a battery is increased, the power consumption is increased, the battery is seriously heated, the battery life is short due to the serious heating of the battery, and the calculation of the unmanned aerial vehicle on the residual electric quantity of the battery is influenced; inaccurate battery power calculates can lead to unmanned aerial vehicle to explode the machine and fall, causes loss of property, influences plant protection operating efficiency. The unmanned aerial vehicle battery is easy to short circuit and explode after water enters, and the prior art only carries out simple film-coated waterproof protection on the unmanned aerial vehicle battery, has poor waterproof effect and cannot adapt to plant protection operation in rainy and foggy weather.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems of overhigh battery temperature and poor battery waterproofness during heavy-load work of the plant protection unmanned aerial vehicle, the invention provides the heat dissipation waterproof structure of the plant protection unmanned aerial vehicle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a heat dissipation waterproof structure of a plant protection unmanned aerial vehicle, which comprises a battery compartment, a wind wheel and an eccentric spring; the battery bin comprises an outer shell, an inner shell, an air inlet, a ventilation opening and a first cavity; the inner shell is positioned between the battery and the outer shell and fixedly connected with the outer shell; the first cavity is positioned between the inner shell and the outer shell and is a closed space; the eccentric spring is positioned in the first cavity on two sides of the inner shell, the eccentric spring is fixed between the outer shell and the inner shell through the support, the support is arranged so as not to influence the flow of gas in the first cavity, the eccentric spring can rotate on the support around a shaft, the eccentric spring consists of a plurality of groups of U-shaped springs, each group of U-shaped springs consists of a section of spring body a and a section of spring body b, the rotating axis of the eccentric spring is superposed with the arc center line of the section of spring body b, and the arc center line of the section of spring body a is far away from the rotating axis of the eccentric spring; the air inlets are uniformly arranged on the shell; the ventilation openings are uniformly arranged on the inner shell, and the ventilation openings and the air inlets are arranged in a staggered manner; the wind wheel is positioned at the air inlet on the same horizontal plane with the end part of the eccentric spring, and is rotatably arranged on the inner wall of the air inlet through a rotating shaft, and the rotating shaft of the wind wheel is provided with a driving wheel; a driven wheel is arranged at the position of the eccentric spring and the driving wheel on the same horizontal plane, and the driven wheel is sleeved on the end outer ring of the eccentric spring; the driving wheel and the driven wheel are in transmission through a belt; the battery compartment, the wind wheel, the eccentric spring, the air inlet, the vent, the first cavity, the driving wheel and the driven wheel are matched with each other, the unmanned aerial vehicle moves to form air to enter the first cavity from the air inlet in the flying process in rain and fog weather, and the battery in the box is cooled after passing through the vent; the air inlets and the air vents which are arranged in a staggered mode can cool the batteries in the battery compartment, and meanwhile, rainwater is prevented from entering the battery compartment, so that the purposes of water prevention, ventilation and heat dissipation are achieved; meanwhile, air flowing through the air inlet drives the wind wheel to rotate, the eccentric spring rotates around the shaft through the transmission of the driving wheel, the belt and the driven wheel, the rotating eccentric spring stirs and accelerates the air flow in the first cavity, the cold air flow rate on the surface of the battery in the battery compartment is accelerated, and the temperature of the battery in the battery compartment is further accelerated and reduced.
Preferably, the eccentric spring is provided with a sliding fan blade, the sliding fan blade is sleeved on the eccentric spring, and the sliding fan blade can slide left and right along the eccentric spring; an extension spring is sleeved on the eccentric spring on one side of the sliding fan blade, the sliding fan blade is fixedly connected with one end of the extension spring, a triangular support is arranged on the eccentric spring on the other end of the extension spring, and the extension spring is fixedly connected with the triangular support; when the eccentric spring rotates, the sliding fan blade slides to one side far away from the rotating shaft of the eccentric spring under the action of centrifugal force because of the sliding connection of the sliding fan blade and the eccentric spring, and when the sliding fan blade slides to the position far away from the rotating shaft of the eccentric spring, the sliding fan blade returns to the original position under the action of the extension spring to complete reciprocating motion; the air flow velocity in cavity one can superpose by reciprocating motion's slip fan blade to make between the adjacent spring coil of eccentric spring flexible each other, produce the blast air effect and increase the air flow velocity in cavity one, further accelerate the cooling of battery.
Preferably, the sliding fan blade is in clearance fit with the eccentric spring, so that the sliding fan blade can conveniently slide on the eccentric spring; a limiting block is arranged on the eccentric spring on one side, far away from the extension spring, of the sliding fan blade and is used for preventing the sliding fan blade from being clamped due to overlarge stroke; the clearance fit of the sliding fan blade and the eccentric spring can reduce the reciprocating motion resistance of the sliding fan blade, the sliding of the sliding fan blade is smoother, the air acceleration efficiency of the sliding fan blade is further improved, and meanwhile, the limit block can prevent the situation that the rotating speed of the eccentric spring is too high due to too large wind speed in abnormal weather, the sliding fan blade is blocked due to too large stroke under the action of centrifugal force, and the cooling stability of the battery in the battery compartment is ensured.
Preferably, the lower part of the first cavity is provided with a second cavity; a group of vent holes are formed in the partition plate between the first cavity and the second cavity; a first piston is arranged on one side in the second cavity; one end of the first piston is fixedly connected with the inner wall of the shell, mercury is filled in the first piston, a circular ring is arranged at the other end of the first piston, the circular ring is sleeved on the cylindrical sliding block, and the circular ring and the sliding block are in clearance fit; the sliding block is positioned in the middle of the second cavity, and two ends of the sliding block are slidably mounted on the side wall of the shell; the sliding block is provided with a fan blade, and the fan blade is positioned on the front side of the ring; when the temperature of the battery in the battery compartment is too high, mercury in the first piston expands due to heating, the piston rod of the first piston pushes the sliding block to move through the circular ring, the sliding block drives the fan blades to move in the second cavity, the fan blades drive air in the second cavity to flow, the air flow at the bottom of the first cavity is accelerated through the vent holes, and the cooling effect of the bottom of the battery in the battery compartment is enhanced; after battery bottom temperature fell, mercury cooling shrinkage in the piston drives slider and flabellum towards opposite direction motion, makes the flabellum reciprocating motion in No. two cavities, extrudees the interior air of No. two cavities repeatedly for a cavity and No. two cavity air constantly circulate and flow, keep the interior battery of battery compartment to last the cooling, improve battery operating efficiency, guarantee unmanned aerial vehicle work safety.
Preferably, a second piston is arranged on the other side of the second cavity; one end of the second piston is fixedly connected to the inner wall of the shell, mercury is filled in the second piston, and a rack is arranged at the other end of the second piston; a gear is arranged on the outer ring of the sliding block and is positioned on the rear side of the circular ring; the gear is meshed with the rack; mercury in the second piston expands when heated, and a piston rod of the second piston pushes the rack to move, so that the relative movement speed of the rack and the sliding block is increased, the rotating speed of the fan blades is increased, and the air flow rate is further increased; the fan blades rotate and are matched with the fan blades to do reciprocating motion, so that the air circulation speed between the first cavity and the second cavity is further increased, and the cooling efficiency of the battery is increased.
Preferably, a cooling bag is arranged in the vent hole, and dry ice is filled in the cooling bag; the upper part of the cooling bag is communicated with the first cavity through a vent hole; one side of the air inlet, which is close to the first cavity, is provided with an air plate, the air plate can slide in the air inlet, and a group of ventilation holes are uniformly distributed in the circumferential direction of the air plate; one side of the air plate, which is far away from the first cavity, is provided with a return spring, one end of the return spring is fixedly connected with the air plate, and the other end of the return spring is fixedly connected with the inner wall of the air inlet; the a section of spring body of the eccentric spring is contacted with the wind plate; a baffle is arranged on one side of the vent far away from the first cavity, the baffle is hinged with the inner wall of the vent, and the baffle is circular and matched with the inner wall of the vent; a check block is arranged in the ventilation opening at the other end of the baffle plate and is positioned at one side of the baffle plate close to the first cavity; the rotation and the reciprocating motion of flabellum can extrude the cooling bag, the cooling bag dry ice sublimes the cold air that produces and gets into cavity bottom No. one, eccentric spring a section spring body extrusion aerofoil, under the cooperation of baffle, cavity both sides produce the negative pressure No. one, inhale the cold air of cavity bottom No. one, heat up behind the cold air absorption battery temperature, when eccentric spring a section spring body changes the aerofoil, the aerofoil resets under reset spring's effect, cavity both sides produce the malleation this moment, the air after will heating up is crowded into cavity bottom No. one, reuse dry ice sublimation cools off the further cooling battery of cooperation eccentric spring, guarantee unmanned aerial vehicle safe high-efficient operation.
Preferably, the top of the battery compartment is provided with a waterproof brim; the middle part of the waterproof brim is provided with a water chute, one side of the waterproof brim is hinged on the battery compartment, the other side of the waterproof brim is clamped with the battery compartment, a sealing ring is arranged at the contact part of the waterproof brim and the battery compartment, and the waterproof brim is used for preventing the battery compartment from water inflow; the waterproof eaves and the water guide groove play the roles of water resistance, rain resistance, sun protection and dust prevention of the battery compartment.
The invention has the following beneficial effects:
1. according to the heat dissipation waterproof structure of the plant protection unmanned aerial vehicle, the rotating eccentric spring stirs and accelerates the air flow in the first cavity, accelerates the cold air flow rate on the surface of the battery bin, accelerates the temperature reduction of the battery in the plant protection unmanned aerial vehicle and prevents the battery from being too high in temperature when the plant protection unmanned aerial vehicle works under heavy load through the matching of the wind wheel, the eccentric spring, the air inlet, the vent and the first cavity.
2. According to the heat dissipation waterproof structure of the plant protection unmanned aerial vehicle, the piston rod of the first piston pushes the sliding block to drive the fan blades to move in the second cavity, the fan blades reciprocate in the second cavity, air circulation flowing between the first cavity and the second cavity is achieved through the vent holes, the air temperature in the first cavity at the bottom of the battery compartment is reduced, and the cooling effect of the bottom of the battery in the battery compartment is enhanced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is an elevational side view of the present invention;
FIG. 2 is a cross-sectional view of a battery compartment
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is an enlarged view of a portion of FIG. 3 at D;
FIG. 7 is a view taken at E in FIG. 5;
in the figure: the air-conditioning fan comprises a battery bin 1, a wind wheel 2, an eccentric spring 3, an outer shell 4, an inner shell 5, an air inlet 6, a vent 7, a first cavity 8, a sliding fan blade 9, a limiting block 10, a second cavity 11, a vent hole 12, a first piston 13, a circular ring 14, a sliding block 15, fan blades 16, a second piston 17, a rack 18, a gear 19, a cooling bag 20, a wind plate 21, a baffle 22 and a waterproof brim 23.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the heat dissipation waterproof structure of the plant protection unmanned aerial vehicle comprises a battery compartment 1, a wind wheel 2 and an eccentric spring 3; the battery cabin 1 comprises an outer shell 4, an inner shell 5, an air inlet 6, an air vent 7 and a first cavity 8; the inner shell 5 is positioned between the battery and the outer shell 4, and the inner shell 5 is fixedly connected with the outer shell 4; the first cavity 8 is positioned between the inner shell 5 and the outer shell 4, and the first cavity 8 is a closed space; the eccentric spring 3 is positioned in a first cavity 8 on two sides of the inner shell 5, the eccentric spring 3 is fixed between the outer shell 4 and the inner shell 5 through a support, the support is arranged so as not to influence the flow of gas in the first cavity 8, the eccentric spring 3 can rotate around a shaft on the support, the eccentric spring 3 consists of a plurality of groups of U-shaped springs, each group of U-shaped springs consists of a section of spring body and a section of spring body b, the rotating axis of the eccentric spring 3 is superposed with the arc center line of the section of spring body b, and the arc center line of the section of spring body a is far away from the rotating axis of the eccentric spring 3; the air inlets 6 are uniformly arranged on the shell 4; the ventilation openings 7 are uniformly arranged on the inner shell 5, and the ventilation openings 7 and the air inlets 6 are arranged in a staggered manner; the wind wheel 2 is positioned at an air inlet 6 which is on the same horizontal plane with the end part of the eccentric spring 3, the wind wheel 2 is rotatably arranged on the inner wall of the air inlet 6 through a rotating shaft, and the rotating shaft of the wind wheel 2 is provided with a driving wheel; a driven wheel is arranged at the position of the eccentric spring 3 and the driving wheel on the same horizontal plane, and the driven wheel is sleeved on the end outer ring of the eccentric spring 3; the driving wheel and the driven wheel are in transmission through a belt; the battery bin 1, the wind wheel 2, the eccentric spring 3, the air inlet 6, the vent 7, the first cavity 8, the driving wheel and the driven wheel are matched with each other, air forms air to enter the first cavity 8 from the air inlet 6 in the flying process of the unmanned aerial vehicle in rainy and foggy weather, and the battery in the box is cooled after passing through the vent 7; the air inlets 6 and the ventilation openings 7 which are arranged in a staggered mode can cool the batteries in the battery compartment 1, and meanwhile rainwater is prevented from entering the battery compartment 1, so that the purposes of water prevention, ventilation and heat dissipation are achieved; meanwhile, air flowing through the air inlet 6 drives the wind wheel 2 to rotate, the eccentric spring 3 is enabled to rotate around the shaft through the driving wheel, the belt and the transmission of the driven wheel, the rotating eccentric spring 3 is stirred and accelerates the air flow in the first cavity 8, the cold air flow rate on the surface of the battery bin 1 is accelerated, and the temperature of the battery in the battery bin is further accelerated and reduced.
As an embodiment of the invention, the eccentric spring 3 is provided with a sliding fan blade 9, the sliding fan blade 9 is sleeved on the eccentric spring 3, and the sliding fan blade 9 can slide left and right along the eccentric spring 3; an extension spring is sleeved on the eccentric spring 3 on one side of the sliding fan blade 9, the sliding fan blade 9 is fixedly connected with one end of the extension spring, a triangular support is arranged on the eccentric spring 3 on the other end of the extension spring, and the extension spring is fixedly connected with the triangular support; when the eccentric spring 3 rotates, the sliding fan blade 9 slides to one side far away from the rotating shaft of the eccentric spring 3 under the action of centrifugal force because the sliding fan blade 9 is connected with the eccentric spring 3 in a sliding way, and when the sliding fan blade 9 slides to the position far away from the rotating shaft of the eccentric spring 3, the sliding fan blade 9 returns to the original position under the action of the extension spring to complete reciprocating motion; reciprocating motion's slip fan blade 9 can superpose the air velocity in No. 8 cavities for stretch out and draw back each other between the adjacent spring coil of eccentric spring 3, produce the blast air effect and increase the air velocity in No. 8 cavities, further accelerate the cooling of battery.
As an embodiment of the invention, the sliding fan blade 9 is in clearance fit with the eccentric spring 3, so that the sliding fan blade 9 can conveniently slide on the eccentric spring 3; a limiting block 10 is arranged on the eccentric spring 3 on one side of the sliding fan blade 9, which is far away from the extension spring, and the limiting block 10 is used for preventing the sliding fan blade 9 from being blocked due to overlarge stroke; the clearance fit of the sliding fan blade 9 and the eccentric spring 3 can reduce the reciprocating motion resistance of the sliding fan blade 9, the sliding fan blade 9 slides more smoothly, the air acceleration efficiency of the sliding fan blade 9 is further improved, meanwhile, the limiting block 10 can prevent the condition that the rotating speed of the eccentric spring 3 is too large due to too large wind speed in abnormal weather, the sliding fan blade 9 is blocked due to too large stroke under the action of centrifugal force, and the cooling stability of the battery in the battery bin 1 is ensured.
As an embodiment of the invention, a second cavity 11 is arranged at the lower part of the first cavity 8; a group of vent holes 12 are formed in the partition plate between the first cavity 8 and the second cavity 11; a first piston 13 is arranged on one side in the second cavity 11; one end of the first piston 13 is fixedly connected with the inner wall of the shell 4, mercury is filled in the first piston 13, a circular ring 14 is arranged at the other end of the first piston 13, the circular ring 14 is sleeved on a cylindrical sliding block 15, and the circular ring 14 is in clearance fit with the sliding block 15; the sliding block 15 is positioned in the middle of the second cavity 11, and two ends of the sliding block 15 are slidably mounted on the side wall of the shell 4; the sliding block 15 is provided with a fan blade 16, and the fan blade 16 is positioned on the front side of the circular ring 14; when the temperature of the battery in the battery compartment 1 is too high, mercury in the first piston 13 expands due to heating, a piston rod of the first piston 13 pushes the sliding block 15 to move through the circular ring 14, the sliding block 15 drives the fan blades 16 to move in the second cavity 11, the fan blades 16 drive air in the second cavity 11 to flow, the air flow at the bottom of the first cavity 8 is accelerated through the vent holes 12, and the cooling effect of the bottom of the battery in the battery compartment 1 is enhanced; after battery bottom temperature fell, silver cooling shrink in the piston 13 drives slider 15 and the motion of flabellum 16 towards opposite direction, makes flabellum 16 reciprocating motion in No. two cavities 11, extrudees the interior air of No. two cavities 11 repeatedly for No. one cavity 8 and No. two cavities 11 air constantly circulate and flow, keep battery in the battery compartment 1 to continuously cool off, improve battery operating efficiency, guarantee unmanned aerial vehicle work safety.
As an embodiment of the invention, a second piston 17 is arranged on the other side of the second cavity 11; one end of the second piston 17 is fixedly connected to the inner wall of the shell 4, mercury is filled in the second piston 17, and a rack 18 is arranged at the other end of the second piston 17; a gear 19 is arranged on the outer ring of the sliding block 15, and the gear 19 is positioned on the rear side of the circular ring 14; the gear 19 is meshed with the rack 18; the mercury in the second piston 17 expands when heated, and a piston rod of the second piston 17 pushes the rack 18 to move, so that the relative movement speed of the rack 18 and the sliding block 15 is increased, the rotating speed of the fan blades 16 is increased, and the air flow rate is further increased; the fan blade 16 rotates and is matched with the fan blade 16 to reciprocate, so that the air circulation speed between the first cavity 8 and the second cavity 11 is further increased, and the cooling efficiency of the battery is increased.
In one embodiment of the present invention, a cooling bag 20 is disposed in the ventilation hole 12, and dry ice is filled in the cooling bag 20; the upper part of the cooling bag 20 is communicated with the first cavity 8 through a vent hole 12; one side of the air inlet 6, which is close to the first cavity 8, is provided with an air plate 21, the air plate 21 can slide in the air inlet 6, and a group of ventilation holes are uniformly distributed in the circumferential direction of the air plate 21; one side of the air plate 21, which is far away from the first cavity 8, is provided with a return spring, one end of the return spring is fixedly connected with the air plate 21, and the other end of the return spring is fixedly connected with the inner wall of the air inlet 6; the a-section spring body of the eccentric spring 3 is in contact with the wind plate 21; a baffle plate 22 is arranged on one side of the vent 7, which is far away from the first cavity 8, the baffle plate 22 is hinged with the inner wall of the vent 7, and the baffle plate 22 is circular and matched with the inner wall of the vent 7; a stop block is arranged in the ventilation opening 7 at the other end of the baffle plate 22 and is positioned on one side of the baffle plate 22 close to the first cavity 8; fan blade 16's rotation and reciprocating motion can extrude cooling bag 20, the cold air that cooling bag 20 dry ice sublimation produced gets into cavity 8 bottom No. one, eccentric spring 3a section spring body extrusion aerofoil 21, under baffle 22's cooperation, cavity 8 both sides produce the negative pressure, inhale the cold air of cavity 8 bottom No. one, heat up behind the cold air absorption battery temperature, when eccentric spring 3a section spring body rotated aerofoil 21, aerofoil 21 resets under reset spring's effect, cavity 8 both sides produce the malleation this moment, the air extrusion into cavity 8 bottom after will heating up, reuse dry ice sublimation carries out cooling cooperation eccentric spring 3 and further cools off the battery, guarantee unmanned aerial vehicle safe high-efficient operation.
As an embodiment of the present invention, a waterproof brim 23 is provided on the top of the battery compartment 1; a water guide groove is formed in the middle of the waterproof brim 23, one side of the waterproof brim 23 is hinged to the battery compartment 1, the other side of the waterproof brim 23 is clamped with the battery compartment 1, a sealing ring is arranged at the contact part of the waterproof brim 23 and the battery compartment 1, and the waterproof brim 23 is used for preventing the battery compartment 1 from water inflow; the waterproof eaves 23 and the water chute play the roles of 1 water prevention, rain prevention, sun prevention and dust prevention of the battery compartment.
When the unmanned aerial vehicle works, in the flying process of the unmanned aerial vehicle in rainy and foggy weather, air forms air to enter the first cavity 8 from the air inlet 6, and the temperature of the battery in the box is reduced after the air passes through the air inlet 7; the air inlets 6 and the ventilation openings 7 which are arranged in a staggered mode can cool the batteries in the battery compartment 1, and meanwhile rainwater is prevented from entering the battery compartment 1, so that the purposes of water prevention, ventilation and heat dissipation are achieved; meanwhile, air flowing through the air inlet 6 drives the wind wheel 2 to rotate, the eccentric spring 3 is driven to rotate around the shaft by the driving wheel, the belt and the driven wheel, the rotating eccentric spring 3 stirs and accelerates the air flow in the first cavity 8, the cold air flow rate on the surface of the battery bin 1 is accelerated, and the temperature reduction of the battery in the battery bin is further accelerated; when the eccentric spring 3 rotates, the sliding fan blade 9 slides to one side far away from the rotating shaft of the eccentric spring 3 under the action of centrifugal force because the sliding fan blade 9 is connected with the eccentric spring 3 in a sliding way, and when the sliding fan blade 9 slides to the position far away from the rotating shaft of the eccentric spring 3, the sliding fan blade 9 returns to the original position under the action of the extension spring to complete reciprocating motion; the sliding fan blade 9 which reciprocates back and forth can superpose the air flow velocity in the first cavity 8, so that adjacent spring coils of the eccentric spring 3 stretch out and draw back mutually, the air flow velocity in the first cavity 8 is increased by generating an air blast effect, and the cooling of the battery is further accelerated; the clearance fit between the sliding fan blade 9 and the eccentric spring 3 can reduce the reciprocating motion resistance of the sliding fan blade 9, the sliding of the sliding fan blade 9 is smoother, the air acceleration efficiency of the sliding fan blade 9 is further improved, and meanwhile, the limiting block 10 can prevent the condition that the rotating speed of the eccentric spring 3 is too high and the sliding fan blade 9 is blocked due to too large stroke under the action of centrifugal force, so that the cooling stability of the battery in the battery compartment 1 is ensured; when the temperature of the battery in the battery compartment 1 is too high, mercury in the first piston 13 expands due to heating, a piston rod of the first piston 13 pushes the sliding block 15 to move through the circular ring 14, the sliding block 15 drives the fan blades 16 to move in the second cavity 11, the fan blades 16 drive air in the second cavity 11 to flow, the air flow at the bottom of the first cavity 8 is accelerated through the vent holes 12, and the cooling effect of the bottom of the battery in the battery compartment 1 is enhanced; after the temperature of the bottom of the battery is reduced, the mercury in the first piston 13 is cooled and contracted to drive the sliding block 15 and the fan blades 16 to move in opposite directions, so that the fan blades 16 move back and forth in the second cavity 11, and the air in the second cavity 11 is repeatedly extruded, so that the air in the first cavity 8 and the second cavity 11 continuously and circularly flows, the battery in the battery compartment 1 is kept continuously cooled, the battery operation efficiency is improved, and the working safety of the unmanned aerial vehicle is guaranteed; the mercury in the second piston 17 expands when heated, and a piston rod of the second piston 17 pushes the rack 18 to move, so that the relative movement speed of the rack 18 and the sliding block 15 is increased, the rotating speed of the fan blades 16 is increased, and the air flow rate is further increased; the fan blades 16 rotate and are matched with the fan blades 16 to reciprocate, so that the air circulation speed between the first cavity 8 and the second cavity 11 is further increased, and the battery cooling efficiency is increased; the cooling bag 20 can be extruded by the rotation and reciprocating motion of the fan blade 16, cold air generated by dry ice sublimation of the cooling bag 20 enters the bottom of the first cavity 8, the spring body at the section of the eccentric spring 3a extrudes the air plate 21, negative pressure is generated on two sides of the first cavity 8 under the matching of the baffle 22, the cold air at the bottom of the first cavity 8 is sucked, the temperature of the battery is raised after the cold air absorbs the temperature of the battery, when the spring body at the section of the eccentric spring 3a rotates over the air plate 21, the air plate 21 is reset under the action of the reset spring, positive pressure is generated on two sides of the first cavity 8 at the moment, the air after being heated is extruded into the bottom of the first cavity 8, and the dry ice sublimation is used for cooling to be matched; the waterproof eaves 23 and the water chute play the roles of 1 water prevention, rain prevention, sun prevention and dust prevention of the battery compartment.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a plant protection unmanned aerial vehicle heat dissipation waterproof construction, its characterized in that: comprises a battery compartment (1), a wind wheel (2) and an eccentric spring (3); the battery bin (1) comprises an outer shell (4), an inner shell (5), an air inlet (6), a ventilation opening (7) and a first cavity (8); the inner shell (5) is positioned between the battery and the outer shell (4), and the inner shell (5) is fixedly connected with the outer shell (4); the first cavity (8) is positioned between the inner shell (5) and the outer shell (4), and the first cavity (8) is a closed space; the eccentric spring (3) is positioned in a first cavity (8) on two sides of the inner shell (5), the eccentric spring (3) is fixed between the outer shell (4) and the inner shell (5) through a support, the support is arranged so as not to influence the flow of gas in the first cavity (8), the eccentric spring (3) can rotate around a shaft on the support, the eccentric spring (3) consists of a plurality of groups of U-shaped springs, each group of U-shaped springs consists of a section a spring body and a section b spring body, the rotating axis of the eccentric spring (3) is superposed with the arc center line of the section b spring body, and the arc center line of the section a spring body is far away from the rotating axis of the eccentric spring (3); the air inlets (6) are uniformly arranged on the shell (4); the ventilation openings (7) are uniformly arranged on the inner shell (5), and the ventilation openings (7) and the air inlets (6) are arranged in a staggered manner; the wind wheel (2) is positioned at an air inlet (6) which is positioned on the same horizontal plane with the end part of the eccentric spring (3), the wind wheel (2) is rotatably arranged on the inner wall of the air inlet (6) through a rotating shaft, and a driving wheel is arranged on the rotating shaft of the wind wheel (2); a driven wheel is arranged at the position of the eccentric spring (3) and the driving wheel on the same horizontal plane, and the driven wheel is sleeved on the end outer ring of the eccentric spring (3); the driving wheel and the driven wheel are in transmission through a belt; through mutually supporting between battery compartment (1), wind wheel (2), eccentric spring (3), air intake (6), vent (7), cavity (8), action wheel and the follow driving wheel for reduce battery temperature in battery compartment (1), prevent simultaneously that the rainwater from getting into inside battery compartment (1).
2. The plant protection unmanned aerial vehicle heat dissipation waterproof construction of claim 1, characterized in that: the eccentric spring (3) is provided with a sliding fan blade (9), the sliding fan blade (9) is sleeved on the eccentric spring (3), and the sliding fan blade (9) can slide left and right along the eccentric spring (3); an extension spring is sleeved on the eccentric spring (3) on one side of the sliding fan blade (9), the sliding fan blade (9) is fixedly connected with one end of the extension spring, a triangular support is arranged on the eccentric spring (3) on the other end of the extension spring, and the extension spring is fixedly connected with the triangular support; through the mutual cooperation between eccentric spring (3), slip fan blade (9), A-frame and extension spring for further increase the air velocity of cavity (8) both sides.
3. The plant protection unmanned aerial vehicle heat dissipation waterproof construction of claim 2, characterized in that: the sliding fan blade (9) is in clearance fit with the eccentric spring (3) so that the sliding fan blade (9) can conveniently slide on the eccentric spring (3); and a limiting block (10) is arranged on the eccentric spring (3) on one side, far away from the extension spring, of the sliding fan blade (9), and the limiting block (10) is used for preventing the sliding fan blade (9) from being blocked due to overlarge stroke.
4. The plant protection unmanned aerial vehicle heat dissipation waterproof construction of claim 1, characterized in that: a second cavity (11) is arranged at the lower part of the first cavity (8); a group of vent holes (12) are formed in the partition plate between the first cavity (8) and the second cavity (11); a first piston (13) is arranged on one side in the second cavity (11); one end of the first piston (13) is fixedly connected with the inner wall of the shell (4), mercury is filled in the first piston (13), a circular ring (14) is arranged at the other end of the first piston (13), the circular ring (14) is sleeved on a cylindrical sliding block (15), and the circular ring (14) is in clearance fit with the sliding block (15); the sliding block (15) is positioned in the middle of the second cavity (11), and two ends of the sliding block (15) are slidably mounted on the side wall of the shell (4); the sliding block (15) is provided with a fan blade (16), and the fan blade (16) is positioned on the front side of the circular ring (14); the air circulation device is used for air circulation flow in the first cavity (8) and the second cavity (11) through the matching of the first cavity (8), the second cavity (11), the partition plate, the vent hole (12), the first piston (13), the sliding block (15) and the fan blades (16).
5. The plant protection unmanned aerial vehicle heat dissipation waterproof construction of claim 4, characterized in that: a second piston (17) is arranged on the other side of the second cavity (11); one end of the second piston (17) is fixedly connected to the inner wall of the shell (4), mercury is filled in the second piston (17), and a rack (18) is arranged at the other end of the second piston (17); a gear (19) is arranged on the outer ring of the sliding block (15), and the gear (19) is positioned on the rear side of the circular ring (14); the gear (19) is meshed with the rack (18); the rotation of the fan blades (16) is realized through the mutual matching among the second piston (17), the gear (19) and the rack (18), and the air circulation speed between the first cavity (8) and the second cavity (11) is further improved.
6. The plant protection unmanned aerial vehicle heat dissipation waterproof construction of claim 4, characterized in that: a cooling bag (20) is arranged in the vent hole (12), and dry ice is filled in the cooling bag (20); the upper part of the cooling bag (20) is communicated with the first cavity (8) through a vent hole (12); one side of the air inlet (6) close to the first cavity (8) is provided with an air plate (21), the air plate (21) can slide in the air inlet (6), and a group of air vent holes are uniformly distributed in the circumferential direction of the air plate (21); one side of the air plate (21) far away from the first cavity (8) is provided with a return spring, one end of the return spring is fixedly connected with the air plate (21), and the other end of the return spring is fixedly connected with the inner wall of the air inlet (6); the a-section spring body of the eccentric spring (3) is in contact with the air plate (21); a baffle plate (22) is arranged on one side, away from the first cavity (8), of the vent hole (7), the baffle plate (22) is hinged to the inner wall of the vent hole (7), and the baffle plate (22) is circular and matched with the inner wall of the vent hole (7); a stop block is arranged in the ventilation opening (7) at the other end of the baffle plate (22), and the stop block is positioned on one side, close to the first cavity (8), of the baffle plate (22); through the cooperation of cooling bag (20), aerofoil (21), baffle (22) and eccentric spring (3), be used for making the cold air that dry ice sublimation produced to make a round trip to flow in cavity (8) No. one, reduce battery compartment (1) temperature.
7. The plant protection unmanned aerial vehicle heat dissipation waterproof construction of claim 1, characterized in that: a waterproof brim (23) is arranged at the top of the battery bin (1); the guiding gutter has been seted up at the middle part of waterproof eaves (23), and waterproof eaves (23) one side articulates on battery compartment (1), opposite side and battery compartment (1) block, and the position of waterproof eaves (23) and battery compartment (1) contact is equipped with the sealing washer, is used for preventing through waterproof eaves (23) that battery compartment (1) from intaking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910869359.5A CN110606210B (en) | 2019-09-16 | 2019-09-16 | Plant protection unmanned aerial vehicle heat dissipation waterproof construction |
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| CN201910869359.5A CN110606210B (en) | 2019-09-16 | 2019-09-16 | Plant protection unmanned aerial vehicle heat dissipation waterproof construction |
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| CN110606210A true CN110606210A (en) | 2019-12-24 |
| CN110606210B CN110606210B (en) | 2021-01-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116390410A (en) * | 2023-05-22 | 2023-07-04 | 浙邮信息技术(广州)有限公司 | Indoor data equipment for 5G big data |
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| US20100186608A1 (en) * | 2002-02-20 | 2010-07-29 | Carl Bergman | Method of cooling a hot isostatic pressing device and a hot isostatic pressing device |
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| CN110606210B (en) | 2021-01-29 |
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