CN105958091A - Waterproof breathable fuel cell device for unmanned aerial vehicle - Google Patents
Waterproof breathable fuel cell device for unmanned aerial vehicle Download PDFInfo
- Publication number
- CN105958091A CN105958091A CN201610431064.6A CN201610431064A CN105958091A CN 105958091 A CN105958091 A CN 105958091A CN 201610431064 A CN201610431064 A CN 201610431064A CN 105958091 A CN105958091 A CN 105958091A
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- cell
- fuel cell
- battery
- plate
- limiting plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a waterproof breathable fuel cell device for an unmanned aerial vehicle. The waterproof breathable fuel cell device comprises a cell device arranged in the unmanned aerial vehicle, wherein the cell device comprises a cell box; a cell cavity is formed in the cell box; a fuel cell is arranged in the cell cavity; a metal conducting plate is arranged on each of two sides in the cell cavity; a cell cover is arranged at the top part of the cell box; one end of the cell cover is movably connected with the cell box through a pin shaft; a detachable radiating aluminum plate is arranged at the upper end of the fuel cell; two elastic bottom plates are arranged at the lower end of the fuel cell; more than one vent hole is formed in the bottom surface of the cell box; and an exhaust device is arranged in each vent hole. According to the waterproof breathable fuel cell device, very good breathability can be kept during the flight of the unmanned aerial vehicle; non-heating of the cell under long-term flight of the unmanned aerial vehicle is ensured; the waterproof performance is good; the waterproof breathable fuel cell device can play a waterproof sealing role in whether it rains or the unmanned aerial vehicle lands in the water; the lifetime of the unmanned aerial vehicle is greatly prolonged; and the safety is greatly improved.
Description
Technical field
The present invention relates to unmanned plane field, be specifically related to a kind of waterproof and breathable fuel cell on unmanned plane
Device.
Background technology
During transmission line construction, line corridor length, topographic features are complicated, and circuit institute is through mountain valley, area
The dense forest in river, brings very big inconvenience to the construction of line, and engineering construction is difficult.
When at sea, scene of fire, or the local generation of poor transport is unexpected, needs to recognize in time
Disaster area situation, and goods and materials, medicine, or emergent goods are badly in need of in conveying in time；Due to by environment, traffic,
Limiting Deng other conditions, communication is restricted, and knows nothing disaster area situation, more can not will speedily carry out rescue work in time
Goods and materials are sent to destination, and have delayed rescue time, cause bigger material, the damage of personnel.
If a lot of occasions use unmanned plane above, then can solve completely, along with sending out of unmanned air vehicle technique
Exhibition, unmanned plane is applied to increasing occasion, very popular.But unmanned plane is in use,
A flying power deficiency always problem, therefore people are in order to increase flying power, the foot generally done by battery
Enough big, but after battery is big, its thermal diffusivity also must improve, owing to battery volume is big, dispel the heat too late
Can cause blast or the damage of whole battery time if, therefore the heat dissipation problem of fuel cell needs to solve；
Furthermore, if increasing the thermal diffusivity of fuel cell, certainly will need to increase radiator structure, if offered relatively
Many louvres, affect water proofing property the most certainly, and when heavy rain or drop in water surface, whole fuel cell can go out
Situation about now intaking.
Summary of the invention
The technical problem to be solved be to provide a kind of thermal diffusivity more preferably, good waterproof performance, service life
Longer, the safer waterproof and breathable fuel-cell device on unmanned plane.
The present invention is achieved through the following technical solutions: a kind of waterproof and breathable fuel on unmanned plane
Cell apparatus, including the cell apparatus being installed in unmanned plane, this cell apparatus includes battery case, battery case
Inside offering a battery cavities, fuel cell is installed in battery cavities, and in battery cavities, a metallic conduction is respectively installed in both sides
Sheet, the two ends of fuel cell are installed between metallic conduction sheet, and a battery cover is installed at the top of battery case, electricity
Basin lid one end is flexibly connected with battery case by bearing pin, and the other end of battery cover passes through buckle and is arranged at battery
Buckle slot on box fastens；
A dismountable heat-dissipating aluminium plate is installed in the upper end of fuel cell, and two bullets are installed in the lower end of fuel cell
Property base plate, elastic bottom plate one end is mounted on battery cavities inwall, the lower end of elastic bottom plate and battery cavities bottom surface shape
Become a ventilation lumen, the bottom surface of battery case offers more than one venthole, is respectively mounted in each venthole
One air-out apparatus, the bottom surface of battery case is offered more than one yielding groove, air-out apparatus through venthole and
Make a concession groove；
It is provided through more than one axis hole on battery cover, in each axis hole, is respectively provided with an air inlet pipe, air inlet
The top of pipe arranges an end cap, the rounded shape of this end cap, and end cap is provided with more than one around end cap one circle
Air inlet, air inlet communicates with air inlet pipe, and the bottom of air inlet pipe is inserted to be arranged at and offered on heat-dissipating aluminium plate
In hole, location.
As preferred technical scheme, described heat-dissipating aluminium plate bottom surface just fuel cell side is being offered one with
On radiating groove, radiating groove bottom surface offers the louvre of more than one bell mouth shape, the outlet of air inlet pipe
Rectifying this louvre, fuel cell is just arranged by louvre.
As preferred technical scheme, described heat-dissipating aluminium plate is installed on battery cavities by connecting plate and screw locking
Inwall.
As preferred technical scheme, described elastic bottom plate being provided with two rotating shafts, shaft set is in electricity
In the axle sleeve that cell cavity inwall is offered, the side of axle sleeve arranges the lower end of a limiting plate, limiting plate and elastic bottom plate
Face contacts, and described elastic bottom plate uses stainless steel material to make.
As preferred technical scheme, described air-out apparatus includes an escape pipe, arranges one and give vent to anger in escape pipe
Passage, the upper end of escape pipe is provided with the first limiting plate, and the lower end of described escape pipe is provided with the second limiting plate,
Second limiting plate and the most rounded shape of the first limiting plate, the second limiting plate is provided with more than one air-vent,
Air-vent communicates with outlet passageway, and air-vent is arranged around the second limiting plate one circle, the diameter of the second limiting plate
Equal to the internal diameter making a concession groove.
As preferred technical scheme, the tapered shape of described end cap, air inlet is arranged on the taper surface of end cap.
The invention has the beneficial effects as follows: the cell apparatus of the present invention, can keep very when unmanned plane during flying
No matter good breathability, it is ensured that under unmanned plane flying for long time, battery does not generates heat, and good waterproof performance, under being
Rain or water surface forced landing, all can play a waterproof sealing so that the life-span of unmanned plane is greatly increased, safety
Property is greatly promoted.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the internal structure schematic diagram of the cell apparatus of the present invention；
Fig. 2 is the structural representation of the end cap of the present invention；
Fig. 3 is the structural representation of the heat-dissipating aluminium plate of the present invention；
Fig. 4 is the structural representation of air-out apparatus.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually
Beyond the feature repelled mutually and/or step, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), removes
Non-specifically describes, all can be by other equivalences or have the alternative features of similar purpose and replaced.That is, unless
Narration especially, each feature is an example in a series of equivalence or similar characteristics.
As it is shown in figure 1, include the cell apparatus being installed in unmanned plane, this cell apparatus includes battery case 111,
Offering a battery cavities in battery case 111, fuel cell 8 is installed in battery cavities, and in battery cavities, both sides are respectively pacified
Filling a metallic conduction sheet 17, the two ends of fuel cell 8 are installed between metallic conduction sheet 17, battery case 111
Top one battery cover 2 is installed, battery cover 2 one end is flexibly connected with battery case 111 by bearing pin 1, battery
The other end of lid 2 is fastened with the buckle slot being arranged on battery case 111 by buckle；
A dismountable heat-dissipating aluminium plate 21 is installed in the upper end of fuel cell 8, and the lower end of fuel cell 8 is installed
Two elastic bottom plates 9, elastic bottom plate 9 one end is mounted on battery cavities inwall, the lower end of elastic bottom plate 9 and electricity
Cell cavity bottom surface forms a ventilation lumen；
The effect of elastic bottom plate 9 has two, and one is for supported fuel cell, due to two pieces of elastic bottom plates
Between be not connected to, a good elasticity can be produced after therefore fuel cell installs, will not be because of shock
And excessive impact fuel cell, shock resistance is more preferable；Second effect is to form an outlet passageway,
Two pieces of elastic bottom plates are not connected to so that air circulates more smoothly, it is ensured that ventilation.
Offer more than one venthole on the bottom surface of battery case 111, be respectively mounted one in each venthole and go out
Device of air 12, the bottom surface of battery case 111 is offered more than one yielding groove 13, and air-out apparatus 12 passes
Venthole and yielding groove 13, when ditching, this air-out apparatus can be retracted in yielding groove 13, seals
Pore, plays waterproof effect；
It is provided through more than one axis hole on battery cover 2, is respectively provided with an air inlet pipe 3 in each axis hole, enters
The top of trachea 3 arranges an end cap 4, this rounded shape of end cap 4, and end cap 4 is provided with around end cap one circle
More than one air inlet 19, air inlet 19 communicates with air inlet pipe 3, and the bottom of air inlet pipe 3 is inserted and is arranged at
In the hole, location offered on heat-dissipating aluminium plate 21, when unmanned plane during flying, cold air is by the air inlet on end cap
Enter in air inlet pipe, by air inlet pipe, cold air is circulated in battery cavities.
In the present embodiment, heat-dissipating aluminium plate 21 bottom surface is just offering the heat radiation of one or more to fuel cell 8 side
Groove 6, radiating groove 6 bottom surface offers the louvre 7 of more than one bell mouth shape, the port of export of air inlet pipe 3
Just to this louvre 7, fuel cell is just arranged by louvre 7, owing to combustion is close in heat-dissipating aluminium plate 21 lower surface
The upper surface of material battery 8, in order to air can be poured into, therefore arranges the radiating groove of one or more, air inlet
Air in pipe passes through radiating groove and fuel cell contact, and owing to heat-dissipating aluminium plate directly contacts with fuel cell,
Therefore substantial amounts of heat on fuel cell it is can absorb.
Wherein, heat-dissipating aluminium plate 21 is installed on the inwall of battery cavities by connecting plate 18 and screw locking, dismounting
Heat-dissipating aluminium plate all can be realized by screw, very convenient.
In the present embodiment, elastic bottom plate 9 being provided with two rotating shafts, shaft set is opened in battery cavities inwall
If axle sleeve 16 in, the side of axle sleeve 16 arranges a limiting plate 15, limiting plate 15 and elastic bottom plate 9 times
End contact, described elastic bottom plate uses stainless steel material to make, when fuel cell is positioned on elastic bottom plate
After, elastic bottom plate can be placed by limiting plate and continue to decline, and the setting of rotating shaft can make elastic bottom plate permissible
Up folding, storage is convenient.
In the present embodiment, air-out apparatus 12 includes an escape pipe 26, arranges an outlet passageway in escape pipe 26
24, the upper end of escape pipe 26 is provided with the first limiting plate 21, and the lower end of described escape pipe 26 is provided with second
Limiting plate 25, the second limiting plate 25 and the first the most rounded shape of limiting plate 21, the second limiting plate 25 is arranged
Having more than one air-vent 22, air-vent 22 communicates with outlet passageway 24, and air-vent 22 is around the second limit
Position plate 25 1 circle is arranged, and the diameter of the second limiting plate 25 is equal to the internal diameter of yielding groove, and air-out apparatus is this
One design of bright most critical, when in flight, by the effect of gravity, whole air-out apparatus is sagging shape,
I.e. the first limiting plate of escape pipe upper end contacts with battery cavities face, and the lower end of whole escape pipe is positioned at cell apparatus
Outside, now hot-air is discharged by the outlet passageway of escape pipe by air-vent；When ditching, this
Time due to the setting of the second limiting plate, when the second limiting plate contacts with the water surface, due to the lower end of the second limiting plate
Face is the area that a plane and area are more than escape pipe, and therefore the second limiting plate top is entered by buoyancy of water up
To making a concession in groove, and owing to air-vent is arranged at the side of the second limiting plate, when being positioned at yielding groove, thoroughly
Pore all seals by making a concession the inwall of groove, plays the effect of dash, and therefore can play aerofluxus again can be real
Existing dash.
In the present embodiment, the tapered shape of end cap 4, air inlet 19 is arranged on the taper surface of end cap, owing to setting
Being calculated as taper surface so that in flight course, air can be poured into more smoothly, and when raining also
Not easily pass through air inlet water inlet.
The invention has the beneficial effects as follows: the cell apparatus of the present invention, can keep very when unmanned plane during flying
No matter good breathability, it is ensured that under unmanned plane flying for long time, battery does not generates heat, and good waterproof performance, under being
Rain or water surface forced landing, all can play a waterproof sealing so that the life-span of unmanned plane is greatly increased, safety
Property is greatly promoted.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any change expected without creative work or replacement, all should contain in protection scope of the present invention
Within.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims are limited.
Claims (6)
1. the waterproof and breathable fuel-cell device on unmanned plane, it is characterised in that: include being installed on
Cell apparatus in unmanned plane, this cell apparatus includes battery case, offers a battery cavities, fuel in battery case
Battery is installed in battery cavities, and in battery cavities, a metallic conduction sheet is respectively installed in both sides, the two ends peace of fuel cell
Being loaded between metallic conduction sheet, a battery cover is installed at the top of battery case, and battery cover one end is by bearing pin and electricity
Pond box is flexibly connected, and the other end of battery cover is fastened with the buckle slot being arranged on battery case by buckle；
A dismountable heat-dissipating aluminium plate is installed in the upper end of fuel cell, and two bullets are installed in the lower end of fuel cell
Property base plate, elastic bottom plate one end is mounted on battery cavities inwall, the lower end of elastic bottom plate and battery cavities bottom surface shape
Become a ventilation lumen, the bottom surface of battery case offers more than one venthole, is respectively mounted in each venthole
One air-out apparatus, the bottom surface of battery case is offered more than one yielding groove, air-out apparatus through venthole and
Make a concession groove；
It is provided through more than one axis hole on battery cover, in each axis hole, is respectively provided with an air inlet pipe, air inlet
The top of pipe arranges an end cap, the rounded shape of this end cap, and end cap is provided with more than one around end cap one circle
Air inlet, air inlet communicates with air inlet pipe, and the bottom of air inlet pipe is inserted to be arranged at and offered on heat-dissipating aluminium plate
In hole, location.
Waterproof and breathable fuel-cell device on unmanned plane the most according to claim 1, its feature
It is: described heat-dissipating aluminium plate bottom surface is just offering the radiating groove of one or more, radiating groove to fuel cell side
Bottom surface offers the louvre of more than one bell mouth shape, and the outlet of air inlet pipe is rectified this louvre, dissipates
Fuel cell is just arranged by hot hole.
Waterproof and breathable fuel-cell device on unmanned plane the most according to claim 2, its feature
It is: described heat-dissipating aluminium plate is installed on the inwall of battery cavities by connecting plate and screw locking.
Waterproof and breathable fuel-cell device on unmanned plane the most according to claim 1, its feature
It is: on described elastic bottom plate, be provided with two rotating shafts, the axle sleeve that shaft set is offered in battery cavities inwall
In, the side of axle sleeve arranges a limiting plate, and limiting plate contacts with the lower surface of elastic bottom plate, described elastic bottom
Plate uses stainless steel material to make.
Waterproof and breathable fuel-cell device on unmanned plane the most according to claim 1, its feature
It is: described air-out apparatus includes an escape pipe, an outlet passageway is set in escape pipe, the upper end of escape pipe
Being provided with the first limiting plate, the lower end of described escape pipe is provided with the second limiting plate, the second limiting plate and first
The most rounded shape of limiting plate, the second limiting plate is provided with more than one air-vent, air-vent with give vent to anger logical
Road communicates, and air-vent is arranged around the second limiting plate one circle, and the diameter of the second limiting plate is equal to making a concession the interior of groove
Footpath.
Waterproof and breathable fuel-cell device on unmanned plane the most according to claim 1, its feature
It is: the tapered shape of described end cap, air inlet is arranged on the taper surface of end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431064.6A CN105958091B (en) | 2016-06-16 | 2016-06-16 | A kind of waterproof and breathable fuel-cell device on unmanned plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431064.6A CN105958091B (en) | 2016-06-16 | 2016-06-16 | A kind of waterproof and breathable fuel-cell device on unmanned plane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105958091A true CN105958091A (en) | 2016-09-21 |
| CN105958091B CN105958091B (en) | 2018-12-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610431064.6A Active CN105958091B (en) | 2016-06-16 | 2016-06-16 | A kind of waterproof and breathable fuel-cell device on unmanned plane |
Country Status (1)
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| CN (1) | CN105958091B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374531A (en) * | 2018-11-09 | 2019-02-22 | 浙江海洋大学 | Sea area spilled oil monitoring device based on remote sensing |
| CN109689496A (en) * | 2017-02-24 | 2019-04-26 | 深圳市大疆创新科技有限公司 | Battery compartment and unmanned vehicle |
| CN110370992A (en) * | 2019-06-28 | 2019-10-25 | 西北工业大学 | A kind of new energy unmanned plane fuel cell hybrid power source energy management control system |
| CN110466764A (en) * | 2019-08-28 | 2019-11-19 | 东南大学 | A kind of piggyback pod shell structure of fuel cell unmanned plane |
| CN113086218A (en) * | 2021-06-09 | 2021-07-09 | 南京信息工程大学 | Power supply device of unmanned aerial vehicle for ocean exploration |
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| JP2011154820A (en) * | 2010-01-26 | 2011-08-11 | Olympus Imaging Corp | Water-proof equipment |
| US20120055838A1 (en) * | 2010-09-08 | 2012-03-08 | Fujitsu Limited | Water-resistant cover and electronic device |
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| CN101030664A (en) * | 2006-02-27 | 2007-09-05 | 合肥中大化学电子科技有限公司 | Directly chargeable zinc-air battery for electric vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109689496A (en) * | 2017-02-24 | 2019-04-26 | 深圳市大疆创新科技有限公司 | Battery compartment and unmanned vehicle |
| CN109374531A (en) * | 2018-11-09 | 2019-02-22 | 浙江海洋大学 | Sea area spilled oil monitoring device based on remote sensing |
| CN110370992A (en) * | 2019-06-28 | 2019-10-25 | 西北工业大学 | A kind of new energy unmanned plane fuel cell hybrid power source energy management control system |
| CN110466764A (en) * | 2019-08-28 | 2019-11-19 | 东南大学 | A kind of piggyback pod shell structure of fuel cell unmanned plane |
| CN110466764B (en) * | 2019-08-28 | 2023-07-28 | 东南大学 | Power cabin shell structure of fuel cell unmanned aerial vehicle |
| CN113086218A (en) * | 2021-06-09 | 2021-07-09 | 南京信息工程大学 | Power supply device of unmanned aerial vehicle for ocean exploration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105958091B (en) | 2018-12-18 |
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Denomination of invention: A waterproof and breathable fuel cell device for UAV Effective date of registration: 20200923 Granted publication date: 20181218 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: SHENZHEN MICROMULTICOPTER Co.,Ltd. Registration number: Y2020980006342 |
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Date of cancellation: 20220104 Granted publication date: 20181218 Pledgee: Bank of Beijing Limited by Share Ltd. Shenzhen branch Pledgor: SHENZHEN MICROMULTICOPTER Co.,Ltd. Registration number: Y2020980006342 |
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Address after: Room 401-2, Building 1, No. 189, Guigu 2nd Road, Luoxing Street, Jiashan County, Jiaxing City, Zhejiang Province, 314100 Patentee after: Zhejiang COBIT Innovation Technology Co.,Ltd. Address before: 518000 Kobit Aeronautical Science Park, 1 Yihe Road, Shilong Community, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN MICROMULTICOPTER Co.,Ltd. |