CN209182639U - A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function - Google Patents

A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function Download PDF

Info

Publication number
CN209182639U
CN209182639U CN201920205774.6U CN201920205774U CN209182639U CN 209182639 U CN209182639 U CN 209182639U CN 201920205774 U CN201920205774 U CN 201920205774U CN 209182639 U CN209182639 U CN 209182639U
Authority
CN
China
Prior art keywords
radiator fan
hermetically sealed
radiating fin
heat
mechanical apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920205774.6U
Other languages
Chinese (zh)
Inventor
张锦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Jiutian Huaxin Technology Co.,Ltd.
Original Assignee
Ping Li Science And Technology Chengdu LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ping Li Science And Technology Chengdu LLC filed Critical Ping Li Science And Technology Chengdu LLC
Priority to CN201920205774.6U priority Critical patent/CN209182639U/en
Application granted granted Critical
Publication of CN209182639U publication Critical patent/CN209182639U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Projection Apparatus (AREA)

Abstract

The utility model discloses a kind of hermetically sealed crystal projection optical mechanical apparatus for having high-efficient radiating function, including the internal closed shell with accommodation space;It is set to the external light source of the closed housing, the first heat pipe heat radiation device assembly, the first radiator fan and the second radiator fan;It is installed on intracorporal first optical module of the closed housing, the second optical module and liquid crystal display;And second heat pipe heat radiation device assembly and driving fan;First radiating fin is fixedly installed in the closed housing in vitro and close to second radiator fan, second radiator fan is connected to by air duct with first radiating fin, and first radiating fin is directly connected to the second radiating fin or is connected to by the heat pipe.The utility model carries out reinforcement heat dissipation in outside by the way that internal heat is quickly transmitted to outside, heat exchanger effectiveness and radiating efficiency can be effectively improved, so as to improve heat dissipation effect.

Description

A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function
Technical field
The utility model belongs to the technical field of heat dissipation in optical projection apparatus, has high efficiency and heat radiation more particularly, to one kind The hermetically sealed crystal projection optical mechanical apparatus of function.
Background technique
With the continuous development and progress of electronics technology, projector is widely used in daily life.Projector is also known as thrown Shadow machine is a kind of equipment that can be projected image or video on curtain, and can be by different types of interface with meter The equipment such as calculation machine, VCD, DVD, BD, game machine, DV are connected, to play corresponding vision signal.Wherein, LCD liquid crystal projection apparatus A seed type of projector, LCD liquid crystal projection apparatus have color rendition preferably, it is high resolution, small in size and light-weight excellent Point, carry get up it is also very convenient, be the main product in current projector market.
Currently, the projection arrangement based on Single panel LCD liquid crystal technology generally comprises light source assembly (such as light source, reflector Deng), incident leaded light component (such as convex lens, collector lens, reflector, light cone and incident Fresnel Lenses etc.), liquid crystal display, It is emitted Fresnel Lenses and camera lens.But it for Fresnel Lenses and camera lens etc. is imaged, is all lacked in the presence of what can not be sealed It falls into, to can not achieve the dust-proof effect mutually compatible with heat sinking function.Therefore, lead to projection arrangement troublesome maintenance, maintenance period The problems such as short and at high cost.
A kind of totally enclosed type radiator disclosed in the utility model patent of application number CN200920079551.6, in liquid crystal Below closed heat-dissipating frame in front of screen light-receiving surface or side is equipped with blower, the air inlet of blower and radiating frame inner cavity Communicate, the air outlet of blower protrudes into radiating frame, an inclination angle is formed with liquid crystal display, radiating frame back side panel be transparent material or Light source is equipped in front of person's radiating frame inner cavity.By analysis it is found that the heat master on disclosed radiator structure, inside video camera If receiving heat by airtight cavity itself, heat loss, heat transfer are then carried out by radiation and free convection The shortcomings that energy is small, and heat exchanger effectiveness is low, and heat dissipation effect is poor, is unable to satisfy significant power demand.Similarly, any without reinforcing dissipating The airtight cavity is only replaced with metal or other materials in whole or in part, and thickness or shape is changed by heat, thus The method for realizing heat dissipation, basic logic are the same, i.e. heat exchange is realized by radiation and free convection.
Utility model content
The purpose of this utility model is to provide a kind of hermetically sealed crystal projection optical mechanical apparatus for having high-efficient radiating function, By the way that internal heat is quickly transmitted to outside, and carry out reinforcement heat dissipation in outside, can effectively improve heat exchanger effectiveness and Radiating efficiency, so as to improve heat dissipation effect.
A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function provided by the embodiment of the utility model, packet It includes:
Inside has the closed shell of accommodation space;It is set to the external light source of the closed housing, the first heat-pipe radiator Component, the first radiator fan and the second radiator fan;It is installed on intracorporal first optical module of the closed housing, the second optics group Part and the liquid crystal display between first optical module and the second optical module;And including the first radiating fin, heat pipe With the second heat pipe heat radiation device assembly of the second radiating fin;
Wherein, the first heat pipe heat radiation device assembly is installed near the light source, first radiator fan and second Radiator fan is respectively arranged between the light source and the closed shell, first radiator fan and the second radiator fan position In the inside of the first heat pipe heat radiation device assembly, it is external that first radiating fin is fixedly installed in the closed housing, described Second radiator fan is connected to by air duct with first radiating fin, and first radiating fin and the second radiating fin are direct Connection is connected to by the heat pipe, and second radiating fin is located at first optical module, the second optical module and liquid The side of crystalline substance screen and the inner wall for being fixedly installed in the closed shell, the light source pass through light cone light guide and first optics Component coupling.
Further, the inside of the closed shell is also equipped with the driving fan for inside circulation, the driving wind Fan is for driving the intracorporal air-flow of the closed housing to carry out internal circulation.
Further, the inside of the closed shell is also equipped with the first reflecting mirror and the second reflecting mirror, and described first is anti- Mirror is penetrated to be arranged close to second optical module.
Further, the outer wall of the closed shell is also equipped with projection lens, and the projection lens is by being set to It states the aperture on closed shell to be fixed on the closed shell, second reflecting mirror is arranged close to the projection lens, institute It states the first radiator fan and the second radiator fan is set to the lower section of the projection lens.
Further, first radiator fan and the second radiator fan are connected with first radiating fin, with reality Existing active heat dissipation.
Further, the hermetically sealed crystal projection optical mechanical apparatus includes being set to second radiator fan and first to dissipate Air duct between hot fin.
Further, the one end in the air duct is respectively arranged on first radiator fan and the second radiator fan, separately One end is connected to first radiating fin, to reinforce radiating.
Further, the closed shell is fabricated by plastics and/or metal material.
Further, the light source is LED light source.
In conclusion compared with prior art, what the utility model had has the beneficial effect that:
1, that first radiating fin is fixedly installed in the closed housing is external, and second radiating fin is located at described First optical module, the second optical module and liquid crystal display side and be fixedly installed in the inner wall of the closed shell described close Closed shell is arranged in vitro, and the air of inside circulation can absorb heat and make temperature liter by the first optical module, the second optical module Height, the air after temperature increases will pass through from second radiating fin again, and transfer heat to second heat dissipation Fin is directly connected to the first radiating fin due to second radiating fin or is connected to by heat pipe, so that heat is just The outside of seal casinghousing has been transmitted to from inside.
2, the first heat pipe heat radiation device assembly is installed near the light source, first radiator fan and second dissipates Hot-air fan is respectively arranged between the light source and the closed shell, and first radiator fan and the second radiator fan are located at The unilateral side or two sides of the first heat pipe heat radiation device assembly can be realized the noncumulative effect of heat by external reinforcing heat dissipation;
3, using the internal closed shell with accommodation space, and install in the closed housing body the first optical module, Second optical module, liquid crystal display, the first reflecting mirror and second reflecting mirror etc. can be realized in hermetically sealed crystal projection optical mechanical apparatus The closing of portion's imaging system.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of hermetically sealed crystal projection ray machine dress for having high-efficient radiating function provided by the embodiment of the utility model The schematic diagram of the section structure set.
Fig. 2 is a kind of hermetically sealed crystal projection ray machine dress for having high-efficient radiating function provided by the embodiment of the utility model The top view set.
Icon:
Closed shell 100;Light source 200;First heat pipe heat radiation device assembly 300;First radiator fan 400;
Second radiator fan 500;First optical module 101;Second optical module 102;Liquid crystal display 103;
Second heat pipe heat radiation device assembly 600;First radiating fin 601;Heat pipe 602;Second radiating fin 603;
Light cone light guide 700;Driving fan 104;First reflecting mirror 105;Second reflecting mirror 106;
Projection lens 800.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model Apply example, those of ordinary skill in the art's every other embodiment obtained without creative labor, all Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile it is practical new at this In the description of type, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relatively important Property.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be Mechanical connection, is also possible to be electrically connected;It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
As depicted in figs. 1 and 2, a kind of hermetically sealed liquid crystal having high-efficient radiating function provided by the embodiment of the utility model Projection light machine device may include closed shell 100, light source 200, the first heat pipe heat radiation device assembly 300, the first radiator fan 400, the second radiator fan 500, the first optical module 101, the second optical module 102, liquid crystal display 103 and the second heat-pipe radiator Component 600 etc..Wherein, the inside of the closed shell 100 has accommodation space.The light source 200, the first heat-pipe radiator group Part 300, the first radiator fan 400 and the second radiator fan 500 are respectively arranged at outside the closed shell 100.First light It learns component 101, the second optical module 102, liquid crystal display 103 to be installed in the closed shell 100, the liquid crystal display 103 is located at Between first optical module 101 and the second optical module 102.In addition, the second heat pipe heat radiation device assembly 600 includes the One radiating fin 601, heat pipe 602 and the second radiating fin 603.
Specifically, the light source 200 is mounted on the upper surface of described first heat pipe heat radiation device assembly 300, first heat dissipation Fan 400 and the second radiator fan 500 are respectively arranged near the first heat pipe device assembly 300, to first heat dissipation Device assembly 300 radiates, and first radiator fan 400 and the second radiator fan 500 are located at the first heat pipe heat radiation device assembly 300 inside.
First radiating fin 601 is fixedly installed in outside the closed shell 100, and second radiator fan 500 is logical Air duct is crossed to be connected to first radiating fin 603.First radiating fin 601 is directly connected to the second radiating fin 603 Or it is connected to by the heat pipe 602.Second radiator fan 500, will by radiating to first radiating fin 603 The heat of the heat pipe 602 and first radiating fin 603 vapors away.By the above radiating mode, using concatenated method The heat of the second heat pipe heat radiation device assembly 600 is distributed, and again by the first heat pipe heat radiation device assembly 300 Give out the outside of the hermetically sealed crystal projection optical mechanical apparatus.
Second radiating fin 603 is located at first optical module 101, the second optical module 102 and liquid crystal display 103 Side.Convected air blows over to come from the other side of first optical module 101, the second optical module 102, absorbs described Heat on first optical module 101, the second optical module 102, becomes high-temperature gas.The high-temperature gas passes through described second Radiating fin 603, transfers heat to second radiating fin 603, and the heat on second radiating fin 603 passes through institute Heat pipe 602 is stated to be transmitted to above first radiating fin 601.
The light source 200 is also coupled by light cone light guide 700 with first optical module 101.The light source 200 is excellent It is selected as LED light source 200.
Internal circulation is carried out in order to reinforce the air-flow in the closed shell 100, in the present embodiment, the closed shell 100 inside is also equipped with driving fan 104.
In this way, outside can be transmitted to by closed mode for internal heat, and reinforcement heat dissipation is carried out in outside, it can The radiations heat energy of first optical module 101, the second optical module 102 reception LED light and LED light source is allowed to be transmitted to outer Portion.It is not radiated by the method that heat eliminating medium exchanges, it can be without entering dust.It obstructs or reduces simultaneously and followed for inside The noise of the driving fan 104 of ring, to promote the usage experience effect of complete machine.
Wherein, the inside of the closed shell 100 is also equipped with the first reflecting mirror 105 and the second reflecting mirror 106, and described One reflecting mirror 105 is arranged close to second optical module 102.The outer wall of the closed shell 100 is also equipped with projection lens 800, second reflecting mirror 106 is arranged close to the projection lens 800, and first radiator fan 400 is set to the throwing The lower section of shadow camera lens 800, the projection lens 800 by the aperture of the closed shell 100 with the closed shell 100 together As confined space.It so, it is possible to realize the closing of hermetically sealed crystal projection optical mechanical apparatus internal imaging system, and be effectively reduced Noise improves dust-proof effect.
It should be noted that first reflecting mirror 105 and the second reflecting mirror 106 are not required condition in the present embodiment, A kind of only optics expression way in the specific implementation process.
Further, second radiator fan 500 and the first radiator fan 400 respectively with first radiating fin 601 series connection.When implementation, second radiator fan 500 absorbs the cooling air of extraneous low temperature, and the cooling air passes through High efficient heat exchanging may be implemented in first radiating fin 601, can also be very using the first heat pipe heat radiation device assembly 300 It exchanges heat well.Therefore, by concatenated radiating mode, second radiator fan 500 can be achieved at the same time described first The heat dissipation of radiating fin 601 and the first heat pipe heat radiation device assembly 300.
Further, first radiator fan 400 can also be gone here and there with first radiating fin 601 by wind path Connection.
In order to realize better form arrangement, the hermetically sealed crystal projection optical mechanical apparatus includes being set to described first to dissipate Air duct between Hot-air fan 400 and the second radiator fan 500 and the first radiating fin 601.
In the present embodiment, the closed shell 100 can be made of plastic material, can also be manufactured with metal material and At, can also simultaneously be made of the mixing material of plastics and metal.
The second heat pipe heat radiation device assembly 600 also can simplify as common heat sink fin logical construction, i.e., and described Two radiating fins 603 are installed in the closed shell 100, and second radiating fin 603 directly radiates with described first Fin 601 merges, and first radiating fin 601 is exposed to the outside of the closed shell 100.Embodiment of above is cancelled Heat pipe 602, advantageously reduces cost.
In conclusion compared with prior art, what the utility model had has the beneficial effect that:
Firstly, first radiating fin 601 is fixedly installed in the outer wall of the closed shell 100 and close to described the Two radiator fans 500, second radiator fan 500 are connected to by the heat pipe 602 with second radiating fin 603, institute State the side that the second radiating fin 603 is located inside first optical module 101, the second optical module 102 and liquid crystal display 103 And it is fixedly installed in the inner wall of the closed shell 100, and in the closed shell 100, so as to realize heat from interior Portion is transmitted to outside.
Secondly, the first heat pipe heat radiation device assembly 300 is installed near the light source 200, first radiation air Fan 400 and the second radiator fan 500 are respectively arranged in the first heat pipe heat radiation device assembly 300 and the second heat pipe heat radiation device assembly Between 600, by the active heat removal behavior of the first radiator fan 400 and the second radiator fan 500, by second heat pipe heat radiation Outside is transmitted to by the first heat pipe heat radiation device assembly 300 after the heat absorption of device assembly 600.It is real by concatenated mode Existing active heat removal, on the one hand may be implemented heat and does not accumulate, on the other hand may be implemented to reduce cost, improve the form effect of product Fruit.
In addition, using the internal closed shell 100 with accommodation space, and first is installed in the closed shell 100 Optical module 101, the second optical module 102, liquid crystal display 103, the first reflecting mirror 105, the second reflecting mirror 106 and for inside Driving fan 104 of circulation etc. can be realized the closing of hermetically sealed crystal projection optical mechanical apparatus internal imaging system.
Finally, it should be noted that the present embodiment by the heat in the hermetically sealed crystal projection optical mechanical apparatus into Row calculates, and the heat sink size and rotation speed of the fan control of the hermetically sealed crystal projection optical mechanical apparatus may be implemented according to calculated result System etc., to realize the control of form and the control of noise.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.

Claims (9)

1. a kind of hermetically sealed crystal projection optical mechanical apparatus for having high-efficient radiating function characterized by comprising
Inside has the closed shell of accommodation space;Be set to the external light source of the closed housing, the first heat pipe heat radiation device assembly, First radiator fan and the second radiator fan;Be installed on intracorporal first optical module of the closed housing, the second optical module and Liquid crystal display between first optical module and the second optical module;And including the first radiating fin, heat pipe and Second heat pipe heat radiation device assembly of two radiating fins;
Wherein, the first heat pipe heat radiation device assembly is installed near the light source, first radiator fan and the second heat dissipation Fan is respectively arranged between the light source and the closed shell, and first radiator fan and the second radiator fan are located at institute State the inside of the first heat pipe heat radiation device assembly, it is external that first radiating fin is fixedly installed in the closed housing, and described second Radiator fan is connected to by air duct with first radiating fin, and first radiating fin is directly connected to the second radiating fin Or be connected to by the heat pipe, second radiating fin is located at first optical module, the second optical module and liquid crystal display Side and be fixedly installed in the inner wall of the closed shell, the light source passes through light cone light guide and first optical module Coupling.
2. the hermetically sealed crystal projection optical mechanical apparatus according to claim 1 for having high-efficient radiating function, which is characterized in that The inside of the closed shell is also equipped with the driving fan for inside circulation, and the driving fan is described closed for driving The intracorporal air-flow of shell carries out internal circulation.
3. the hermetically sealed crystal projection optical mechanical apparatus according to claim 1 for having high-efficient radiating function, which is characterized in that The inside of the closed shell is also equipped with the first reflecting mirror and the second reflecting mirror, and first reflecting mirror is close to second light Learn component setting.
4. the hermetically sealed crystal projection optical mechanical apparatus according to claim 3 for having high-efficient radiating function, which is characterized in that The outer wall of the closed shell is also equipped with projection lens, and the projection lens passes through the aperture that is set on the closed shell It is fixed on the closed shell, second reflecting mirror is arranged close to the projection lens, first radiator fan and Two radiator fans are set to the lower section of the projection lens.
5. the hermetically sealed crystal projection optical mechanical apparatus according to claim 1 for having high-efficient radiating function, which is characterized in that First radiator fan and the second radiator fan are connected with first radiating fin, to realize active heat dissipation.
6. the hermetically sealed crystal projection optical mechanical apparatus according to claim 5 for having high-efficient radiating function, which is characterized in that The hermetically sealed crystal projection optical mechanical apparatus includes the air duct being set between second radiator fan and the first radiating fin.
7. the hermetically sealed crystal projection optical mechanical apparatus according to claim 5 for having high-efficient radiating function, which is characterized in that The one end in the air duct is respectively arranged on first radiator fan and the second radiator fan, the other end and first heat dissipation Fin connection, to reinforce radiating.
8. the hermetically sealed crystal projection optical mechanical apparatus according to claim 1-6 for having high-efficient radiating function, It is characterized in that, the closed shell is fabricated by plastics and/or metal material.
9. the hermetically sealed crystal projection optical mechanical apparatus according to claim 1-6 for having high-efficient radiating function, It is characterized in that, the light source is LED light source.
CN201920205774.6U 2019-02-15 2019-02-15 A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function Active CN209182639U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920205774.6U CN209182639U (en) 2019-02-15 2019-02-15 A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920205774.6U CN209182639U (en) 2019-02-15 2019-02-15 A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function

Publications (1)

Publication Number Publication Date
CN209182639U true CN209182639U (en) 2019-07-30

Family

ID=67379173

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920205774.6U Active CN209182639U (en) 2019-02-15 2019-02-15 A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function

Country Status (1)

Country Link
CN (1) CN209182639U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109634031A (en) * 2019-02-15 2019-04-16 屏丽科技成都有限责任公司 A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function
CN112711163A (en) * 2019-10-25 2021-04-27 台达电子工业股份有限公司 Projection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109634031A (en) * 2019-02-15 2019-04-16 屏丽科技成都有限责任公司 A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function
CN109634031B (en) * 2019-02-15 2024-06-11 成都九天画芯科技有限公司 Full-sealed liquid crystal projection optical machine device with efficient heat dissipation function
CN112711163A (en) * 2019-10-25 2021-04-27 台达电子工业股份有限公司 Projection device

Similar Documents

Publication Publication Date Title
CN109634031A (en) A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function
US6935750B2 (en) Display device and display optical system unit
CN209182639U (en) A kind of hermetically sealed crystal projection optical mechanical apparatus having high-efficient radiating function
CN101114111B (en) Optical system unit and projector
CN105652570A (en) Laser projection device
CN109547760A (en) Projector
CN214228367U (en) Single-chip type totally-enclosed LCD projection heat dissipation system
JPH11202411A (en) Liquid crystal panel cooling device for liquid crystal projector
CN207216252U (en) Radiator structure and projecting apparatus
CN110780518A (en) Projector with a light source
CN109031864A (en) Projector and its ray machine
CN211478843U (en) Projector with a light source
CN210776144U (en) Sealed projector
JP2500741B2 (en) LCD projector
CN114200716A (en) Bottom light-emitting backlight without light guide plate
CN209879239U (en) Projection device
CN217360535U (en) Single-chip type totally-enclosed LCD projection heat dissipation system
CN219370193U (en) Air-cooled full-sealed high-brightness high-uniformity single-chip LCD projection optical machine
CN219349338U (en) Projector optical machine heat radiation structure
CN211878405U (en) Projector optical machine radiator with ideal material heat conduction
CN209707895U (en) A kind of radiator of cloud teaching platform optical projection system
CN218037660U (en) Novel heat radiation structure of sealed ray apparatus
CN112752472A (en) LED electronic screen with good heat dissipation effect
JP2020122885A (en) Camera housing
CN220188845U (en) Off-axis projector with sealing and heat dissipation functions

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220819

Address after: 610000 building 2-1, Tianfu Haichuang Park, No. 619, Jicui Road, Xinglong Street, Tianfu new area, Chengdu, Sichuan

Patentee after: Chengdu Jiutian Huaxin Technology Co.,Ltd.

Address before: 2nd Floor, Building 10, Area A, Tianfu Jingrong Center, Science City, Tianfu New District, Chengdu, China (Sichuan) Pilot Free Trade Zone, Chengdu 610000

Patentee before: LUXNPRO CHENGDU ELECTRONICS CO.,LTD.

TR01 Transfer of patent right