CN205670799U - A kind of heat abstractor and there is its video camera - Google Patents
A kind of heat abstractor and there is its video camera Download PDFInfo
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- CN205670799U CN205670799U CN201620582062.2U CN201620582062U CN205670799U CN 205670799 U CN205670799 U CN 205670799U CN 201620582062 U CN201620582062 U CN 201620582062U CN 205670799 U CN205670799 U CN 205670799U
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Abstract
Embodiment of the present utility model provides a kind of heat abstractor and has its video camera.This heat abstractor includes: heat pipe, and described heat pipe is flat；Middle part heat-conducting piece, described middle part heat-conducting piece includes that the first heat-conducting piece and the second heat-conducting piece, described first heat-conducting piece and described second heat-conducting piece are relatively connected to the upper and lower surface of described heat pipe at the middle part of described heat pipe；And end heat-conducting piece, described end heat-conducting piece is connected to the lower surface of described heat pipe in the end of described heat pipe.On the premise of not increasing cost, this utility model uses the design of heat pipe heat radiation can effectively solve the high-power heat-dissipation problem of video camera, and will not bring secondary effect.The heat conductivity of heat pipe is common metal hundred times, and conduction of heat is the fastest.The evaporation ends of heat pipe thermally contacts with the heater element on mainboard, and the condensation end of heat pipe thermally contacts with housing, utilizes the large surface area of housing to implement effectively and dispels the heat, and therefore heat will not be piled up, and mainboard performance will not be produced impact.
Description
Technical field
This utility model relates to image acquisition field, more particularly, to a kind of heat abstractor and have this heat radiation dress
The video camera put.
Background technology
Present monitoring class video camera is towards high Qinghua, and intelligentized direction is developed, and more carrys out the performance requirement of master chip
The highest.Master chip function is the most powerful, and heating power is the highest.If can not the high-power master chip of video camera be carried out the best
Good heat radiation, will affect picture quality, more can damage video camera time serious.
Summary of the invention
In view of the problems referred to above, this utility model provides a kind of heat abstractor and has the shooting of this heat abstractor
Machine.
According to an aspect of the present utility model, it is provided that a kind of heat abstractor for video camera, including: heat pipe, described
Heat pipe is flat；Middle part heat-conducting piece, described middle part heat-conducting piece includes the first heat-conducting piece and the second heat-conducting piece, described first heat conduction
Part and described second heat-conducting piece are relatively connected to the upper and lower surface of described heat pipe at the middle part of described heat pipe；And end
Portion's heat-conducting piece, described end heat-conducting piece is connected to the lower surface of described heat pipe in the end of described heat pipe.
Exemplarily, described middle part heat-conducting piece and described end heat-conducting piece are copper sheet.
Exemplarily, described middle part heat-conducting piece and the surface being used for thermally contacting with other objects of described end heat-conducting piece
It is provided with heat-conducting pad.
Exemplarily, described heat-conducting pad is made up of elastic heat conducting material.
Exemplarily, described heat-conducting pad is made up of autohension Heat Conduction Material.
Exemplarily, described heat pipe includes the closed tube being made of copper and is positioned at the liquid of described closed tube,
It is coated with copper powders on the inwall of described closed tube.
Exemplarily, the thickness of described heat pipe is less than or equal to 1mm.
According to another aspect of the present utility model, also provide for a kind of video camera, including: housing；Mainboard, described mainboard position
In described housing, and there is heater element；And any one heat abstractor as above, described heat abstractor is positioned at described
In housing, the first heat-conducting piece of described heat abstractor thermally contacts with described heater element, the second heat-conducting piece of described heat abstractor
Thermally contact with described housing with at least one of described end heat-conducting piece.
Exemplarily, the outer surface of described housing has multiple radiating fin.
Exemplarily, described mainboard is arranged near the lower surface of described housing, described heat abstractor and the institute of described housing
State lower surface thermo-contact.
As can be seen here, on the premise of not increasing cost, the design of this utility model employing heat pipe heat radiation can be with efficient solution
The certainly high-power heat-dissipation problem of video camera, and secondary effect will not be brought.The heat conductivity of heat pipe is common metal hundred times, heat
Conduct the fastest.The evaporation ends of heat pipe can thermally contact with the heater element (usually master chip) on mainboard, the condensation of heat pipe
End can thermally contact with housing, utilizes the large surface area of housing to realize effectively and dispels the heat, and therefore heat will not be piled up, will not be right
Mainboard performance produces impact.
Accompanying drawing explanation
By combining accompanying drawing, this utility model embodiment is described in more detail, of the present utility model above-mentioned and its
Its purpose, feature and advantage will be apparent from.Accompanying drawing is used for providing being further appreciated by this utility model embodiment, and
And a part for composition description, it is used for explaining this utility model together with this utility model embodiment, is not intended that this reality
With novel restriction.In the accompanying drawings, identical reference number typically represents same parts or step.
Fig. 1 is the exploded view of the gun shaped video camera according to one embodiment of this utility model；
Fig. 2 is the top perspective view of the heat abstractor according to one embodiment of this utility model；
Fig. 3 is the face upwarding stereogram of the heat abstractor according to one embodiment of this utility model；
Fig. 4 is the schematic diagram that the heat abstractor according to one embodiment of this utility model installs the lower cover to video camera；With
And
Fig. 5 is the heat radiation schematic diagram after the parts in Fig. 4 assemble.
Detailed description of the invention
So that the purpose of this utility model, technical scheme and advantage become apparent from, retouch the most in detail
State according to example embodiment of the present utility model.Obviously, described embodiment is only that a part of the present utility model is implemented
Example rather than whole embodiment of the present utility model, it should be appreciated that this utility model is not limited by example embodiment described herein
System.Based on this utility model embodiment described in this utility model, those skilled in the art are not paying creative work
Within all other embodiments obtained by the case of all should fall into protection domain of the present utility model.
An aspect of the present utility model, it is provided that a kind of heat abstractor for video camera.This heat abstractor can be used
In various types of video cameras, structure and the principle of heat abstractor are the most only described as a example by gun shaped video camera.For the ease of
Understand heat abstractor, first in conjunction with Fig. 1, gun shaped video camera 100 will be carried out globality description.As it is shown in figure 1, the shooting of this gun shaped
Machine 100 can include main body frame 110, protecgulum 120, upper cover 130, lower cover 140 and bonnet 150.
Main body frame 110 is the support member of gun shaped video camera 100.The miscellaneous part of gun shaped video camera 100 is the most all pacified
It is contained on this main body frame 110.Main body frame 110 includes the sidewall being oppositely arranged.Sidewall is using the shell as gun shaped video camera 100
A part for body, is collectively forming described housing with protecgulum 120, upper cover 130, lower cover 140 and bonnet 150.Gun shaped video camera 100
Miscellaneous part all will be installed directly or indirectly through main body frame 110.
The mainboard 160 for image procossing of gun shaped video camera 100 is positioned at housing, such as, arrange near lower cover 140.?
In an embodiment of the present utility model, mainboard 160 can include realizing video capture, recognition of face and/or live body judgement etc.
Circuit.The heater element 161 of mainboard 160 is towards lower cover 140, and thermally contacts with lower cover 140, in order to produced by heater element 161
Raw heat is transferred to lower cover 140 by heat abstractor 200 (as hereinafter will be described in), and is diffused into by lower cover 140
In air.Additionally, due to main body frame 110, protecgulum 120, upper cover 130 and bonnet 150 are connected to lower cover 140, therefore transmit
Heat to lower cover 140 can also be delivered on main body frame 110, protecgulum 120, upper cover 130 and bonnet 150, with by them
Diffusion.Although using lower cover 140, as the most direct heat transfer component, (i.e. heat abstractor 200 is connected to lower cover 140 and heating above
Between element 161) as a example by, but in other embodiments unshowned, main body frame 110, protecgulum 120, upper cover 130 and bonnet
Any one in 150 can serve as the most direct heat transfer component with multiple.
Camera lens installing hole it is provided with on protecgulum 120.The camera lens (not shown) of such as normal optical camera lens can be from protecgulum 120
Outside be screwed at this camera lens installing hole.Various interface, such as power interface, data transmission can be provided with on bonnet 131
Interface etc..
Directional terminology " interior " involved by Ben Wen, " outward " are for gun shaped video camera 100, and such as inner side is face
To the side within gun shaped video camera 100, and outside is back to the side within gun shaped video camera 100.Directional terminology " on ",
For D score, "front", "rear", " both sides " etc. are relative to the person of being taken, the end towards the person of being taken (is i.e. provided with mirror
The end of head) it is referred to as front end, on the contrary it is rear end.
Below in conjunction with accompanying drawing, heat abstractor is described in detail.Heat abstractor 200 includes heat pipe 210, middle part heat conduction
Part and end heat-conducting piece 230.
Heat pipe 210 is in flat, to reduce the volume shared by heat pipe 210, it is to avoid video camera overall volume is excessive.Preferably
Ground, the thickness of heat pipe 210 is less than or equal to 1mm.So can ensure that the overall volume of the video camera using this heat abstractor 200
It is substantially unaffected.Heat pipe 210 is to utilize sweat cooling so that heat pipe two ends temperature difference is very big, makes heat quickly conduct.Heat pipe
Negative pressure state is generally pumped in the inside of 210, is then charged with suitable liquid, and this boiling point of liquid is low, readily volatilized.Exemplary
Ground, heat pipe 210 includes the closed tube being made of copper and is positioned at the liquid of this closed tube.Additionally, closed tube is interior
Copper powders it is coated with, to form capillarity on wall.To flow along with variations in temperature, no by the hot liquid in pipe of capillarity
Being easily subject to heat pipe Bending Influence, heat conductivity is common metal hundred times.The manufacturing process of heat pipe 210 is for this area institute
Know, and the inventive point of the present invention is not intended to heat pipe 210 itself.
Middle part heat-conducting piece includes the first heat-conducting piece 222 and the second heat-conducting piece 224.First heat-conducting piece 222 and the second heat-conducting piece
224 are oppositely arranged at the middle part of heat pipe 210, are respectively connecting to the upper and lower surface of heat pipe 210.End heat-conducting piece 230 exists
The end of heat pipe 210 is connected to the lower surface of heat pipe 210.Although the heat pipe 210 illustrated in the drawings has two ends, Mei Geduan
Portion is respectively arranged with an end heat-conducting piece 230.But, in other embodiments unshowned, heat pipe 210 can have more
Individual end, correspondingly has more ends heat-conducting piece 230.Be connected to heat pipe 210 upper surface the first heat-conducting piece 222 for
Thermally contact with the heater element 161 of mainboard 160.As can be seen here, the middle part of heat pipe 210 is evaporation ends, and the end of heat pipe 210 is
Condensation end.When the evaporation ends of heat pipe 210 is heated, the liquid in capillary tube on heat pipe 210 inwall evaporates rapidly, and steam is micro-
Flowing to condensation end under little pressure differential, and discharge heat, regelation becomes liquid, and liquid leans on the effect of capillary force to flow back to again
Evaporation ends, so circulation are more than.This circulation is quickly carried out, and heat can be come by conduction continuously, is formed and passes
Guiding path 1, as shown in Figure 5.Two parts thermo-contact mentioned in this article includes the situation that two parts directly thermally contact, and also wraps
Include the situation of two parts indirect thermal contact by intermediate member.
On the other hand, the first heat-conducting piece 222 and the second heat-conducting piece 224 are oppositely arranged, and are thermally contacted by heat pipe 210,
Therefore, in addition to above by the evaporation ends of heat pipe 210 and the conducting path 1 of condensation end, yet forms both the first heat-conducting piece 222
Conducting path 2 to the second heat-conducting piece 224.The heat outfan of conducting path 1 and conducting path 2 is connected to the shell of video camera
Body, therefore can be diffused into heat in air by bigger heat-delivery surface, and then realizes quick heat radiating.
As can be seen here, on the premise of considering cost, in order to solve the high-power heat-dissipation problem of video camera, and will not bring
Secondary effect, uses the design of heat pipe heat radiation, and its heat conductivity is common metal hundred times, and conduction of heat is the fastest.The steaming of heat pipe
Making a start and thermally contact with the heater element (usually master chip) on mainboard, the condensation end of heat pipe thermally contacts with housing, utilizes housing
Large surface area realize effectively dispelling the heat, therefore heat will not be piled up, will not on mainboard performance produce impact.Wherein, heat connects
Touching can be that directly thermo-contact can also be indirect thermal contact.
In order to improve heat transference efficiency, middle part heat-conducting piece and end heat-conducting piece 230 are copper sheet.Two surfaces of copper sheet
Thermally contact with heat pipe and heater element or heat dissipation element respectively.
Additionally, middle part heat-conducting piece and end heat-conducting piece 230 for other objects (such as include heater element 161 and
Lower cover 140) it is provided with heat-conducting pad 240 on the surface that thermally contacts.The effect of heat-conducting pad 240 is to compensate for assembly error,
Fill assembly clearance, make part energy good contact.In order to realize this purpose, heat-conducting pad 240 can be by elastic heat conducting material system
Become.Additionally, in order to ensure that heat-conducting pad 240 thermally contacts with the good of contact surface, it is preferable that heat-conducting pad 240 is by autohension
Heat Conduction Material is made.Can be adhered directly in contact surface by the autohension of heat-conducting pad 240 itself, decrease installation step
Suddenly.Elastic heat conducting material mentioned above and autohension Heat Conduction Material can be to it known in the art, or future may go out
The existing various materials that disclosure satisfy that requirement.For example, heat-conducting pad can by with silica gel as base material, add metal-oxide
It is that the heat-conducting medium material that auxiliary material synthesizes is made.This material not only has elasticity but also has autohension.
In order to make heat pipe 210 can thermally contact with the heater element 161 of mainboard 160, the middle part of heat pipe 210 is upwards swelled.
The end of heat pipe 210 can be installed on the lower cover 140 of video camera (see Fig. 4-5) by fixing screw 300.And middle part heat conduction
The shape of part and end heat-conducting piece 230 is not limited to the shape shown in figure, as long as fully can thermally contact with other objects.
Can be down to according to this utility model embodiment, the second heat-conducting piece 224 of heat abstractor 200 and end heat-conducting piece 230
Few one thermally contacts with the housing of video camera.Exemplarily, for ensureing more preferable radiating effect, the preferably second heat-conducting piece 224 He
End heat-conducting piece 230 all thermally contacts with the housing of video camera.
In order to improve radiating efficiency further, the outer surface of housing has multiple radiating fin, sees Fig. 1, can increase
The heat-delivery surface of housing.Exemplarily, multiple radiating fins are arranged abreast.The camera housing of fin type is coordinated by heat pipe
Dispelling the heat, the high temperature on heater element can be transmitted on fin type housing rapidly by heat pipe, and the table of fin type housing
Area is very big, and what heat can equalize very much sheds.Therefore master chip heat will not be piled up, excellent heat radiation performance.
Exemplarily, mainboard 160 is arranged near the lower surface (i.e. lower cover 140) of housing.Under heat abstractor 200 and housing
Surface heat contacts.When the mainboard 160 of video camera 100 is disposed adjacent at lower cover 140, when video camera 100 is installed on metal flat
Time, area of dissipation can be increased, increase radiating effect further.
Although describing example embodiment by reference to accompanying drawing here, it should be understood that above-mentioned example embodiment is merely exemplary
, and be not intended to scope of the present utility model is limited to this.Those of ordinary skill in the art can carry out various wherein
Change and amendment, without departing from scope and spirit of the present utility model.All such changes and modifications are intended to be included in appended
Within the scope of this utility model required by claim.
In description mentioned herein, illustrate a large amount of detail.It is to be appreciated, however, that it is of the present utility model
Embodiment can be put into practice in the case of not having these details.In some instances, be not shown specifically known method,
Structure and technology, in order to do not obscure the understanding of this description.
Similarly, it will be appreciated that in order to simplify this utility model and help to understand in each utility model aspect
Or at least two, in the description to exemplary embodiment of the present utility model, each feature of the present utility model is sometimes by one
Rise and be grouped in single embodiment, figure or descriptions thereof.But, this method of the present utility model should be construed to
Reflect an intention that this utility model requirement the most required for protection than the feature being expressly recited in each claim more
Many features.More precisely, as corresponding claims reflect, its practical novel point is can be with being less than
The feature of all features of single embodiment disclosed in certain solves corresponding technical problem.Therefore, it then follows specific embodiment party
Claims of formula are thus expressly incorporated in this detailed description of the invention, and the most each claim itself is new as this practicality
The independent embodiment of type.
It will be understood to those skilled in the art that in addition to mutually exclusive between feature, any combination can be used right
All features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and the disclosedest any method
Or all processes of equipment or device are combined.Unless expressly stated otherwise, this specification (includes that adjoint right is wanted
Ask, make a summary and accompanying drawing) disclosed in each feature can be replaced by providing identical, equivalent or the alternative features of similar purpose.
Although additionally, it will be appreciated by those of skill in the art that embodiments more described herein include other embodiments
Some feature included by rather than further feature, but the combination of the feature of different embodiment means to be in this practicality newly
Within the scope of type and form different embodiments.Such as, in detail in the claims, embodiment required for protection is any
One of can mode use in any combination.
It should be noted that this utility model is illustrated rather than by above-described embodiment this utility model is limited,
And those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In right
In requirement, any reference marks that should not will be located between bracket is configured to limitations on claims.Word " comprises " not to be arranged
Except there is the element or step not arranged in the claims.Word "a" or "an" before being positioned at element do not exclude the presence of to
Few two such elements.This utility model can be by means of including the hardware of some different elements and by means of suitably compiling
The computer of journey realizes.If in the device claim listing equipment for drying, several in these devices can be logical
Cross same hardware branch specifically to embody.Word first, second and third use do not indicate that any order.Can be by this
A little word explanations are title.
The above, detailed description of the invention the most of the present utility model or the explanation to detailed description of the invention, this practicality is new
The protection domain of type is not limited thereto, the technology model that any those familiar with the art discloses at this utility model
In enclosing, change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Protection of the present utility model
Scope should be as the criterion with scope of the claims.
Claims (10)
1. the heat abstractor for video camera, it is characterised in that including:
Heat pipe, described heat pipe is flat；
Middle part heat-conducting piece, described middle part heat-conducting piece includes the first heat-conducting piece and the second heat-conducting piece, described first heat-conducting piece and described
Second heat-conducting piece is relatively connected to the upper and lower surface of described heat pipe at the middle part of described heat pipe；And
End heat-conducting piece, described end heat-conducting piece is connected to the lower surface of described heat pipe in the end of described heat pipe.
2. heat abstractor as claimed in claim 1, it is characterised in that described middle part heat-conducting piece and described end heat-conducting piece are
Copper sheet.
3. heat abstractor as claimed in claim 1, it is characterised in that described middle part heat-conducting piece and the use of described end heat-conducting piece
It is provided with heat-conducting pad on the surface thermally contacted with other objects.
4. heat abstractor as claimed in claim 3, it is characterised in that described heat-conducting pad is made up of elastic heat conducting material.
5. the heat abstractor as described in claim 3 or 4, it is characterised in that described heat-conducting pad is by autohension Heat Conduction Material system
Become.
6. heat abstractor as claimed in claim 1, it is characterised in that described heat pipe include the closed tube that is made of copper and
It is positioned at the liquid of described closed tube, the inwall of described closed tube is coated with copper powders.
7. heat abstractor as claimed in claim 1, it is characterised in that the thickness of described heat pipe is less than or equal to 1mm.
8. a video camera, it is characterised in that including:
Housing；
Mainboard, described mainboard is positioned at described housing, and has heater element；And
Heat abstractor as according to any one of claim 1-7, described heat abstractor is positioned at described housing, described heat radiation dress
The first heat-conducting piece put thermally contacts with described heater element, the second heat-conducting piece of described heat abstractor and described end heat-conducting piece
At least one thermally contacts with described housing.
9. video camera as claimed in claim 8, it is characterised in that the outer surface of described housing has multiple radiating fin.
10. video camera as claimed in claim 8, it is characterised in that described mainboard is arranged near the lower surface of described housing, institute
State heat abstractor to thermally contact with the described lower surface of described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620582062.2U CN205670799U (en) | 2016-06-15 | 2016-06-15 | A kind of heat abstractor and there is its video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620582062.2U CN205670799U (en) | 2016-06-15 | 2016-06-15 | A kind of heat abstractor and there is its video camera |
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| Publication Number | Publication Date |
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| CN205670799U true CN205670799U (en) | 2016-11-02 |
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| CN201620582062.2U Active CN205670799U (en) | 2016-06-15 | 2016-06-15 | A kind of heat abstractor and there is its video camera |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785218A (en) * | 2017-01-19 | 2017-05-31 | 清华大学深圳研究生院 | Heat management structure and the unmanned plane using the heat management structure |
| CN107333050A (en) * | 2017-08-29 | 2017-11-07 | 歌尔科技有限公司 | A kind of picture pick-up device radiator structure and picture pick-up device |
| CN110235059A (en) * | 2019-04-28 | 2019-09-13 | 深圳市大疆创新科技有限公司 | Radiating subassembly and moving camera |
| CN110784627A (en) * | 2018-07-24 | 2020-02-11 | 株式会社理光 | Image pickup apparatus |
| CN110855858A (en) * | 2018-08-21 | 2020-02-28 | 杭州海康威视数字技术股份有限公司 | Camera with integrated protective cover |
| CN111083338A (en) * | 2019-12-31 | 2020-04-28 | 北京澎思科技有限公司 | Heat conduction support and electronic equipment |
| CN111225548A (en) * | 2020-03-04 | 2020-06-02 | 深慧视(深圳)科技有限公司 | Special-shaped sealing heat dissipation conduction device |
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- 2016-06-15 CN CN201620582062.2U patent/CN205670799U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018133277A1 (en) * | 2017-01-19 | 2018-07-26 | 清华大学深圳研究生院 | Heat management structure, and unmanned aerial vehicle employing same |
| CN106785218A (en) * | 2017-01-19 | 2017-05-31 | 清华大学深圳研究生院 | Heat management structure and the unmanned plane using the heat management structure |
| CN107333050A (en) * | 2017-08-29 | 2017-11-07 | 歌尔科技有限公司 | A kind of picture pick-up device radiator structure and picture pick-up device |
| CN107333050B (en) * | 2017-08-29 | 2023-08-25 | 歌尔科技有限公司 | Heat radiation structure for camera equipment and camera equipment |
| US11013148B2 (en) | 2018-07-24 | 2021-05-18 | Ricoh Company, Ltd. | Imaging apparatus |
| CN110784627A (en) * | 2018-07-24 | 2020-02-11 | 株式会社理光 | Image pickup apparatus |
| CN110784627B (en) * | 2018-07-24 | 2021-07-16 | 株式会社理光 | Image pickup apparatus |
| CN110855858A (en) * | 2018-08-21 | 2020-02-28 | 杭州海康威视数字技术股份有限公司 | Camera with integrated protective cover |
| CN110855858B (en) * | 2018-08-21 | 2021-03-19 | 杭州海康威视数字技术股份有限公司 | Camera with integrated protective cover |
| CN110235059A (en) * | 2019-04-28 | 2019-09-13 | 深圳市大疆创新科技有限公司 | Radiating subassembly and moving camera |
| US11303784B2 (en) | 2019-04-28 | 2022-04-12 | SZ DJI Technology Co., Ltd. | Heat dissipation assembly and action camera |
| CN110235059B (en) * | 2019-04-28 | 2022-06-24 | 深圳市大疆创新科技有限公司 | Heat dissipation assembly and motion camera |
| CN111083338B (en) * | 2019-12-31 | 2021-08-31 | 北京澎思科技有限公司 | Heat conduction support and electronic equipment |
| CN111083338A (en) * | 2019-12-31 | 2020-04-28 | 北京澎思科技有限公司 | Heat conduction support and electronic equipment |
| CN111225548A (en) * | 2020-03-04 | 2020-06-02 | 深慧视(深圳)科技有限公司 | Special-shaped sealing heat dissipation conduction device |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100190 Beijing, Haidian District Academy of Sciences, South Road, No. 2, block A, No. 313 Co-patentee after: Beijing maigewei Technology Co., Ltd. Patentee after: MEGVII INC. Address before: 100190 Beijing, Haidian District Academy of Sciences, South Road, No. 2, block A, No. 313 Co-patentee before: Beijing aperture Science and Technology Ltd. Patentee before: MEGVII INC. |