CN206505336U - High/low temperature hypobaric experiment bin - Google Patents
High/low temperature hypobaric experiment bin Download PDFInfo
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- CN206505336U CN206505336U CN201720188235.7U CN201720188235U CN206505336U CN 206505336 U CN206505336 U CN 206505336U CN 201720188235 U CN201720188235 U CN 201720188235U CN 206505336 U CN206505336 U CN 206505336U
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- hypobaric
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- 238000002474 experimental method Methods 0.000 title claims abstract description 41
- 238000012360 testing method Methods 0.000 claims abstract description 61
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model provides a kind of high/low temperature hypobaric experiment bin, including：Shell, shell, which encloses, to be set to form installation cavity；It is heat sink, it is heat sink to be arranged in installation cavity, and enclose and set to form test chamber, the mounting bracket for placing object to be measured is provided with test chamber；Blower fan, blower fan is arranged on the inwall of test chamber.High/low temperature hypobaric experiment bin of the present utility model can be rapidly heated, so that very big save experimental period and cost, save the energy, manpower, electricity charge etc..
Description
Technical field
The utility model is related to experimental provision technical field, is tested in particular to a kind of high/low temperature hypobaric
Storehouse.
Background technology
Near space environmental simulation test system, general low pressure will be less than 5500pa, and temperature will reach -55~-60 DEG C.
Present general high/low temperature hypobaric experiment bin will realize this environmental index, then require that air pressure first is depressured into 5000pa
Hereinafter, then (can not first cool, then be depressured, otherwise condensation of moisture, damage equipment) is cooled.
At present, completely by radiating the nature with some low density gas in most of high/low temperature hypobaric experiment bin, storehouse
Convection current, so relatively time consuming, not energy-conserving and environment-protective, cost of labor is also at a relatively high.Environment low pressure in storehouse, rarefaction of air is conducted heat very slow.
5000pa is depressured to due to vacuumizing, experiment bin air is thin, completely by radiation, and any of low density gas is naturally right
Stream, so prior art has a disadvantage that：
1st, inwall is heat sink and the warehouse center temperature difference is big：Heat sink -85 degrees Celsius when inwall, warehouse center environment temperature -55~-
60 degrees Celsius, differ 25-30 degrees Celsius.
2nd, emphasis is temperature fall time overlength, and the heating-up time is also longer：Warehouse center and object to be measured is wanted to reach high-altitude
Environment -55~-60 DEG C need 4-5 hour, if undetected object part thermal capacitance is big, the time is longer.Stabilization, which is fully achieved, then to be needed
More than 12 hours.
And normal temperature is gone back up to from low temperature in storehouse, or when being raised to higher temperature, test man in storehouse in order to so that do not have water
Vapour, and equipment is damaged, boosting also will not be first inflated, but heat up under low pressure, need also exist for phase more than 3 hours.
Therefore, waste the energy and lose time, manpower, the electricity charge etc., experimentation cost is at a relatively high.
Utility model content
Main purpose of the present utility model is to provide a kind of high/low temperature hypobaric experiment bin, to solve prior art
In high/low temperature hypobaric experiment bin testing time length, the problem of cost is high.
To achieve these goals, the utility model provides a kind of high/low temperature hypobaric experiment bin, including：Outside
Shell, shell, which encloses, to be set to form installation cavity；It is heat sink, it is heat sink to be arranged in installation cavity, and enclose and set to form test chamber, it is provided with test chamber
Mounting bracket for placing object to be measured；Blower fan, blower fan is arranged on the inwall of test chamber.
Further, blower fan is multiple, and perisporium of multiple blower fans along test chamber in a ring arrange by structure.
Further, the loop configuration of multiple blower fan formation is one or more, multiple when loop configuration is multiple
Length direction of the loop configuration along test chamber arranged for interval successively.
Further, blower fan is heatproof blower fan.
Further, mounting bracket is track frame, and multiple blower fans enclose the periphery for being located at track frame.
Further, high/low temperature hypobaric experiment bin also includes speed measuring device.
Further, speed measuring device is arranged on object to be measured.
Further, blower fan is multiple, and multiple blower fans are separately positioned on two side walls of test chamber.
Further, high/low temperature hypobaric experiment bin also includes：Temperature control circulating line, temperature control circulating line is arranged on
Shell and it is heat sink between；Temperature control system, temperature control system is connected to control the liquid in temperature control circulating line with temperature control circulating line
Temperature.
Further, high/low temperature hypobaric experiment bin also include vacuum-pumping system, vacuum-pumping system be used for pair
Test chamber carries out pumping process.
Further, high/low temperature hypobaric experiment bin also includes heat-insulation layer, and heat-insulation layer is arranged on the outer surface of shell
On.
Using the technical solution of the utility model, treated when using high/low temperature hypobaric test cabin of the present utility model
When survey object is tested, object to be measured is arranged on mounting bracket, then controls blower fan to start, the setting of blower fan is enabled to
Air in test chamber realizes rapid convective, and then causes the outside of test chamber and the temperature in center are rapidly reached consistent, and then
Quickly make high/low temperature hypobaric test cabin at low pressure, the cooling from normal temperature to low temperature equally, can also be rapidly heated,
Experimental period and cost are saved so as to very big, the energy, manpower, electricity charge etc. are saved.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 diagrammatically illustrates the section view of the first embodiment of high/low temperature hypobaric test cabin of the present utility model
Figure；
Fig. 2 diagrammatically illustrates Fig. 1 A-A sectional views；
Fig. 3 diagrammatically illustrates the section view of the second embodiment of high/low temperature hypobaric test cabin of the present utility model
Figure；And
Fig. 4 diagrammatically illustrates Fig. 3 B-B sectional views.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, shell；20th, it is heat sink；21st, test chamber；30th, blower fan；40th, mounting bracket；50th, object to be measured；60th, temperature control circulation pipe
Road；70th, temperature control system；80th, vacuum-pumping system；90th, heat-insulation layer.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing process, method, system, product or the equipment of series of steps or unit not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Referring to shown in Fig. 1 to Fig. 2, according to first embodiment of the present utility model, there is provided a kind of high/low temperature low pressure ring
Border test cabin.
The high/low temperature hypobaric experiment bin of the present embodiment includes shell 10, heat sink 20 and blower fan 30.Wherein, shell
10 enclose and set to form installation cavity；Heat sink 20 are arranged in installation cavity, and enclose and set to form test chamber 21, and being provided with test chamber 21 is used for
Place the mounting bracket 40 of object 50 to be measured；Blower fan 30 is arranged on the inwall of test chamber 21.
When the high/low temperature hypobaric test cabin using the present embodiment is tested object 50 to be measured, by determinand
Part 50 is arranged on mounting bracket 40, then controls blower fan 30 to start, the setting of blower fan 30 enables to the air in test chamber 21
Rapid convective is realized, and then causes the outside of test chamber 21 and the temperature in center are rapidly reached consistent, and then quickly makes high/low temperature
Hypobaric test cabin at low pressure (such as 5000pa, 3000pa) from normal temperature to low temperature (such as -55~-60 DEG C) drop
Temperature, equally, can also be rapidly heated, so that very big save experimental period and cost, save the energy, manpower, electricity charge etc..
During actual use, high/low temperature hypobaric experiment bin of the present utility model can apply to space flight boat
Brought in environmental testing experiment under empty field, such as aircraft, near space floating gas, aircraft, the low-temperature and low-pressure such as dirigible
Under low-temp low-pressure, quickly realize that temperature is uniform, stable effect, high/low temperature hypobaric experiment bin of the present utility model also may be used
To be applied in the implementation of above spacecraft thermal control system, the thermal control equally in all environment under low pressure is implemented all apply.
In order to rapidly make high/low temperature hypobaric experiment bin of the present utility model be heated up or be cooled, this implementation
Blower fan 30 in example is multiple, and perisporium of multiple blower fans 30 along test chamber 21 in a ring arrange by structure, is easy to so that test chamber 21
Interior air realizes rapid convective, and then reaches the effect for being rapidly heated or cooling.
In the present embodiment, the loop configuration of multiple formation of blower fan 30 can be for one or multiple (referring to figure
Shown in 1), when loop configuration for it is multiple when, length direction of multiple loop configuration along test chamber 21 arranged for interval successively so that many
Individual blower fan 30 circularizes the internal face that array is arranged in radial heatsink 20, the rectangular array on heat sink 20 axial direction, wherein
Number, in-line arrangement, fork row does not limit.
Certainly, in other embodiment of the present utility model, the arrangement of multiple blower fans 30 can also be interlaced arrangement
Or other regular or irregular arrangements, as long as enable to the air in test chamber 21 to realize rapid convective
Other modes of texturing, within protection domain of the present utility model.
Due to high/low temperature, particularly low temperature, general blower fan 30, which may be held, can't stand, but one side in the market exist it is low temperature resistant
Fan, can meet requirement, and general fan does thermal control in addition, such as heats control on the internal circuit of blower fan 30, constant temperature etc., can be with
Easily reach low-temperature working requirement, therefore, in the present embodiment by blower fan 30 be heatproof blower fan, the blower fan 30 have it is low temperature resistant, it is low
The characteristics of pressure and high temperature, it is easy to use for a long time in test chamber 21, and then ensures high/low temperature hypobaric of the present utility model
The service life of experiment bin.
Referring again to shown in Fig. 1 and Fig. 2, the mounting bracket 40 in the present embodiment is track frame, is easy to move object 50 to be measured
Fully to be tested object 50 to be measured, during installation, multiple blower fans 30 enclose the periphery for being located at track frame, can rapidly cause
The temperature of object 50 to be measured reaches balance with the temperature of the outer ledge of test chamber 21, and then object 50 to be measured is accurately surveyed
Examination.
The high/low temperature hypobaric test cabin of the present embodiment also includes temperature control circulating line 60 and temperature control system 70, its
In, temperature control circulating line 60 is arranged between shell 10 and heat sink 20；Temperature control system 70 is connected to temperature control circulating line 60
Control the fluid temperature in temperature control circulating line 60.
During design, the temperature control circulating line 60 in the present embodiment includes many branch flow pipes, and many branch flow pipes, which are surround, to be set
Put in heat sink 20 periphery, and be connected by a main pipeline with many branch flow pipes, be easy to follow to many branch flow pipe conveyings
Ring liquid.Temperature control system 70 in the present embodiment includes heating and refrigeration bath oil machine group (not shown), by adjusting bath oil
It is accurate to control the temperature of the liquid in temperature control circulating line 60 Deng fluid temperature, and heat sink 20 are transferred heat to, and then it is easy to test chamber
Temperature in 21 is controlled.
Preferably, the high/low temperature hypobaric experiment bin in the present embodiment also includes being used to be evacuated test chamber 21
The vacuum-pumping system 80 of processing, vacuum-pumping system 80 includes vavuum pump and valve (not shown), can be good at taking out
Low pressure is stable in the test chamber 21 of vacuum and control high/low temperature hypobaric experiment bin.
In the present embodiment, high/low temperature hypobaric experiment bin also includes heat-insulation layer 90, and the heat-insulation layer 90 is set outside
On the outer surface of shell 10, and shell 10 is sealed by sealing structure, can effectively ensure that high/low temperature hypobaric is real
The temperature and air pressure of testing position.
According to above-mentioned structure it is recognised that the blower fan 30 in the present embodiment is arranged in the internal face of radial heatsink 20, and
Array is circularized, rectangular array, wherein number on heat sink 20 axial direction, in-line arrangement, fork row do not limit, such a arrangement causes
The airflow direction that blower fan 30 is produced is as shown in Figure 2.
During experiment：First start vacuum-pumping system 80, set goal pressure (such as 5000pa, or lower) less than
Under 5000pa low pressure, simulated altitude -55~-60 will be cooled to from normal temperature (25 DEG C) in high/low temperature hypobaric experiment bin
DEG C, then first set the oily refrigeration unit of bath of temperature control system 70 to bathe oil temperature than target temperature (- 55~-60 DEG C) lower temperature ratio
Such as -80 DEG C, start refrigerating plant, bath oil temperature is reduced rapidly, and the coolant-temperature gage of temperature control circulating line 60 is accordingly reduced, heat sink 20 temperature
Reduction, now, starts blower fan 30, the rotating speed of blower fan 30 can be according to temperature, and needs regulation.
Due to air-flow from heat sink 20 to the center of object 50 to be measured in the radial direction, and everywhere than more uniform in storehouse, then
The temperature of object 50 to be measured can rapidly be reduced to target temperature (- 55~-60 DEG C), and high/low temperature hypobaric is tested
Temperature is than more uniform in storehouse, and this time can be at least 4-5 hours of never blower fan 30, is reduced to 0.5 hour to 1.5 small
When (depending on the thermal capacitance size of object 50 to be measured, and quality etc. is fixed), so as to substantially reduce temperature fall time, save the energy, Er Qiere
At heavy 20 internal faces and object to be measured 50, the temperature difference also can be lower 10 DEG C or so.When temperature reaches target temperature (such as -55~-60
DEG C), blower fan 30, stabilization to be achieved can be turned off, then do the environmental test of object 50 to be measured.
, can also be according to the same operation that cools if other object 50 to be measured tests completion, it is necessary to heat up at low temperature
To greatly shorten the heating-up time.
Referring to shown in Fig. 3 and Fig. 4, according to second embodiment of the present utility model, there is provided a kind of high/low temperature low pressure ring
The structure of high/low temperature hypobaric test cabin in border test cabin, the present embodiment and first embodiment it is essentially identical, institute is not
With the high/low temperature hypobaric experiment bin in the present embodiment also includes speed measuring device (not shown), by testing the speed
The effect of device, is easy to test the wind speed of the blower fan 30 in test chamber 21, and then is easy to the rotating speed progress to blower fan 30
Control.
Preferably, the speed measuring device in the present embodiment be arranged on object 50 to be measured on, certainly, it is of the present utility model other
In embodiment, speed measuring device can also be arranged in test chamber 21.
Blower fan 30 in the present embodiment is also configured as multiple, and during design, multiple blower fans 30 in the present embodiment are set respectively
On two end walls of test chamber 21 so that streamer mode in test chamber 21 test chamber 21 axial direction flowing (referring to
Shown in Fig. 4).
This blower fan 30 in the present embodiment arranges reduction and rise high/low temperature hypobaric test cabin that also can be quickly
Interior central temperature, and object to be measured 50 temperature, but not as first embodiment efficiency high, but can be more preferably compared with first embodiment
Simulated altitude wind speed environment, such as stratosphere according to speed measuring device reading, adjusts the voltage rotating speed of blower fan 30, so as to obtain
Desired ambient wind velocity.As wind speed must be ignored, then reach and turn off blower fan 30 after target temperature.
High/low temperature hypobaric test cabin of the present utility model, can obtain stable below 5000pa low pressures；Pass through
Temperature control circulating line 60, temperature control system 70 and heat sink 20 effect, can obtain exactly accurate uniform temperature field；Pass through in storehouse
The arrangement of blower fan 30, can reduce the temperature difference of heat sink 20 inwall and the surrounding environment of object 50 to be measured, obtain well-proportioned temperature field point
Cloth, and then the high/low temperature low-atmospheric pressure test time can be greatly shortened, time saving, economic, energy-conservation, environmental protection.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (11)
1. a kind of high/low temperature hypobaric experiment bin, it is characterised in that including：
Shell (10), the shell (10), which is enclosed, to be set to form installation cavity；
Heat sink (20), described heat sink (20) are arranged in the installation cavity, and are enclosed and set to form test chamber (21), the test chamber
(21) mounting bracket (40) for placing object to be measured (50) is provided with；
Blower fan (30), the blower fan (30) is arranged on the inwall of the test chamber (21).
2. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the blower fan (30) is many
Individual, perisporium of multiple blower fans (30) along the test chamber (21) in a ring arrange by structure.
3. high/low temperature hypobaric experiment bin according to claim 2, it is characterised in that multiple blower fan (30) shapes
Into the loop configuration be one or more, when the loop configuration for it is multiple when, multiple loop configuration are along described
The length direction of test chamber (21) arranged for interval successively.
4. high/low temperature hypobaric experiment bin according to any one of claim 1 to 3, it is characterised in that the wind
Machine (30) is heatproof blower fan.
5. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the mounting bracket (40) is rail
Road frame, multiple blower fans (30) enclose the periphery for being located at the track frame.
6. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the high/low temperature low pressure ring
Border experiment bin also includes speed measuring device.
7. high/low temperature hypobaric experiment bin according to claim 6, it is characterised in that the speed measuring device is arranged on
On the object to be measured (50).
8. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the blower fan (30) is many
Individual, multiple blower fans (30) are separately positioned on two side walls of the test chamber (21).
9. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the high/low temperature low pressure ring
Border experiment bin also includes：
Temperature control circulating line (60), the temperature control circulating line (60) be arranged on the shell (10) and heat sink (20) it
Between；
Temperature control system (70), the temperature control system (70) is connected to control the temperature control to follow with the temperature control circulating line (60)
Fluid temperature in endless tube road (60).
10. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the high/low temperature low pressure
Environmental experiment storehouse also includes vacuum-pumping system (80), and the vacuum-pumping system (80) is used to carry out the test chamber (21)
Pumping process.
11. high/low temperature hypobaric experiment bin according to claim 1, it is characterised in that the high/low temperature low pressure
Environmental experiment storehouse also includes heat-insulation layer (90), and the heat-insulation layer (90) is arranged on the outer surface of the shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188235.7U CN206505336U (en) | 2017-02-28 | 2017-02-28 | High/low temperature hypobaric experiment bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720188235.7U CN206505336U (en) | 2017-02-28 | 2017-02-28 | High/low temperature hypobaric experiment bin |
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| Publication Number | Publication Date |
|---|---|
| CN206505336U true CN206505336U (en) | 2017-09-19 |
Family
ID=59841526
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720188235.7U Active CN206505336U (en) | 2017-02-28 | 2017-02-28 | High/low temperature hypobaric experiment bin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020581A (en) * | 2017-11-21 | 2018-05-11 | 上海理工大学 | A kind of Space Thermal tube performance testing experimental provision |
| CN109916950A (en) * | 2019-04-01 | 2019-06-21 | 南京理工大学 | A kind of temperature control performance assessment device of heat sink material |
| CN114104348A (en) * | 2021-12-17 | 2022-03-01 | 重庆哈丁环境试验技术股份有限公司 | Near space environment simulation system |
-
2017
- 2017-02-28 CN CN201720188235.7U patent/CN206505336U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020581A (en) * | 2017-11-21 | 2018-05-11 | 上海理工大学 | A kind of Space Thermal tube performance testing experimental provision |
| CN109916950A (en) * | 2019-04-01 | 2019-06-21 | 南京理工大学 | A kind of temperature control performance assessment device of heat sink material |
| CN114104348A (en) * | 2021-12-17 | 2022-03-01 | 重庆哈丁环境试验技术股份有限公司 | Near space environment simulation system |
| CN114104348B (en) * | 2021-12-17 | 2024-01-12 | 重庆哈丁环境试验技术股份有限公司 | Near space environment simulation system |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240312 Address after: 518000 room 301-b077, building 2, No.1, Mawu Road, Baoan community, Yuanshan street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN KUANG-CHI SPACE TECH. Co.,Ltd. Country or region after: China Address before: 570100 building a, business incubation center, Haikou national high tech Zone, no.6, Yaogu 1st Road, Nanhai Avenue, Haikou City, Hainan Province Patentee before: HAIKOU INSTITUTE OF FUTURE TECHNOLOGY Country or region before: China |
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