CN104077974A - Ventilated and light-tight LED display screen - Google Patents
Ventilated and light-tight LED display screen Download PDFInfo
- Publication number
- CN104077974A CN104077974A CN201410332392.1A CN201410332392A CN104077974A CN 104077974 A CN104077974 A CN 104077974A CN 201410332392 A CN201410332392 A CN 201410332392A CN 104077974 A CN104077974 A CN 104077974A
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- led
- light
- heat
- light tight
- ventilative
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
Abstract
The invention relates to a ventilated and light-tight LED display screen. The ventilated and light-tight LED display screen comprises a screen body, a plurality of heat-dissipating air holes and ventilated and light-tight units. Each ventilated and light-tight unit is arranged in the corresponding heat-dissipating air hole. The ventilated and light-tight units enable air flow to smoothly pass through the heat-dissipating air holes and increase the flowing speed of the air flow in the heat-dissipating air holes. Meanwhile, the ventilated and light-tight units can prevent light on one side of the heat-dissipating air holes from directly penetrating through the heat-dissipating air holes in a linear mode and reaching the other side of the heat-dissipating air holes. After the ventilated and light-tight LED display screen is installed, the eyes of a user on one side of the display screen can receive two kinds of light when the user watches the display screen, wherein one kind of light is emitted by the display screen and the other kind of light is emitted from the other side of the display screen through the heat-dissipating air holes. Transmission of the second kind of light can be blocked by the ventilated and light-tight units.
Description
Technical field
The present invention relates to a kind of LED display, refer to especially a kind of LED display of shielding body, some radiation airs hole and ventilative light tight unit that comprises, this ventilative light tight unit correspondence is arranged in each this radiation air hole, this ventilative light tight unit can make air-flow also can promote the flowing velocity of air-flow in this radiation air hole by this radiation air hole smoothly, meanwhile, this ventilative light tight unit can stop the light of this radiation air hole one side directly to arrive an other side in this radiation air hole through this radiation air hole in the mode of straight line.
Background technology
As everyone knows, large scale integrated circuit now, the electronic products such as LED display are constantly to high-density packages and multifunction future development, heat dissipation problem just becomes very thorny problem like this, if large LED display screen or large scale integrated circuit electronic package have not been properly settled the processing of heat dissipation problem, not only cannot bring into play the performance of its application, serious time, even can cause the heat of machine intimate to explode to damage the phenomenon of electronic component, but be at present no matter that the working producer that integrates of the electronic product system in assembly producer or downstream is most or in the stage of fumbling to heat dissipation problem.Along with light, thin, the small and exquisite development of electronic product, how to break through traditional heat dissipation technology and layout strategy, the cooling high temperature that numerous electronic packages produce in limited space, is to determine the performance of product and the key factor of size.
The transmission of heat has three kinds of modes to be followed successively by heat conduction, convection current and heat radiation, wherein, heat conduction refers between interior of articles or the body surface that is in contact with one another, the heat transport phenomenon producing due to the thermal motion of the microscopic particles such as molecule, atom and free electron.Convection current is the heat transport phenomenon that the fluid relative displacement of different temperatures is produced due to the macroscopic motion of fluid.Heat radiation is the phenomenon that makes the outside emitted radiation energy of object due to the thermal motion of interior of articles microscopic particle.For large LED display screen, the mode of main employing heat conduction is dispelled the heat now, more typically such as dispelling the heat by metal fin or fan, more there is some manufacturer of careful person also for LED display has been assembled independently liquid-circulating cooling system, install although these above-mentioned radiating modes have some contributions to the heat radiation of LED display the overall weight that these heat abstractors not only can promote LED display additional and the more important thing is the production cost that can improve greatly LED display, some ventilative large LED display screen products are there are now in order to solve such problem, the feature of this series products is to offer some wind holes on screen body, thereby air-flow is flow through screen body and is reached the effect of ventilation and heat by wind hole in concrete enforcement, because this radiating mode is applied on LED display product, simply say by design several air vents on LED display product and dispelling the heat, but when this display screen is erected at outdoor time, by day in the strong situation of solar radiation, the human eye that is positioned at display screen one side can receive two kinds of light in watching display screen, the light that the first is sent for display screen, the second is to irradiate daylight or other light of coming from the other side transmission display screen of display screen, when the intensity of the second light is greater than or equal to, or when being slightly less than the first light intensity, the inevitable effect that can affect to a great extent the shown image information of human eye reception display screen, and then the phenomenon of generation " cannot see or do not see ", and this is the major defect for conventional art.
Summary of the invention
The invention provides a kind of ventilative light tight LED display, its ventilative light tight unit correspondence is arranged in each radiation air hole, ventilative light tight unit can make air-flow also can promote the flowing velocity of air-flow in radiation air hole by radiation air hole smoothly, simultaneously, the other side that ventilative light tight unit can stop the light of radiation air hole one side directly to pass arrival radiation air hole, radiation air hole in the mode of straight line, and this is to be fundamental purpose of the present invention.
The technical solution adopted in the present invention is: a kind of ventilative light tight LED display, it comprises screen body, some radiation airs hole and ventilative light tight unit, wherein, in this screen body, be provided with LED luminescence unit and control driver module unit, this LED luminescence unit is electrically connected with this control driver module unit, this LED luminescence unit electrified light emitting outwards displays image information, some these radiation air holes are arranged to run through and are arranged on this screen body, each this radiation air hole has the first opening and the second opening, wherein, this first opening is arranged on the front of this screen body, and this second opening is arranged on the reverse side of this screen body, first the heat that its work produces in the time of this LED luminescence unit work is transmitted in this screen body, this moment, in the time that air-flow flows through from this screen body by some these radiation air holes, this air-flow can be taken away the heat that this LED luminescence unit work produces, thereby reach the effect of high efficiency and heat radiation.
This ventilative light tight unit correspondence is arranged in each this radiation air hole, this ventilative light tight unit can make air-flow also can promote the flowing velocity of air-flow in this radiation air hole by this radiation air hole smoothly, simultaneously, this ventilative light tight unit can stop the light of this radiation air hole one side directly to arrive an other side in this radiation air hole through this radiation air hole in the mode of straight line, after the installation that completes this ventilative light tight LED display, the human eye that is positioned at this display screen one side can receive two kinds of light in watching this display screen, the light that the first is sent for this display screen, the second is to see through this radiation air hole from the other side of this display screen to irradiate the light of coming, this ventilative light tight unit can stop the propagation of this second light.
In concrete enforcement, there is numerous embodiments can realize the above-mentioned functions of this ventilative light tight unit, be described below respectively now.
Embodiment mono-, this ventilative light tight unit comprise baffle plate and connecting rod, this baffle plate is erected at by this connecting rod in this second opening in this radiation air hole, form some side air-out mouths by this baffle plate and this connecting rod, some these side air-out chomas are located at this baffle plate surrounding, and the wind flux sum total of some these side air-out mouths is less than the wind flux of this first opening.
Embodiment bis-, this ventilative light tight unit comprise some sloping baffles, and some these sloping baffles are parallel to each other and are co-located in this radiation air hole, and the height of each this sloping baffle increases progressively to this second opening direction from this first opening.
Embodiment tri-, this ventilative light tight unit comprise helical baffle, and this helical baffle spirals and is arranged in this radiation air hole, and the width of this helical baffle self increases progressively to this second opening direction from this first opening.
Embodiment tetra-, this ventilative light tight unit comprise inclined slope piece, and this inclined slope piece is inclined in this radiation air hole, and the height of this inclined slope piece self increases progressively to this second opening direction from this first opening.
In concrete enforcement, this screen body entirety is installed on fixed frame support body to facilitate installation, in concrete enforcement, this screen body comprises bonnet, LED board body and protecgulum, wherein, some LED light source bodies are connected electrically on this LED board body, some these LED light source bodies pass from this protecgulum, this bonnet comprises some airducts, each this airduct comprises ventilation and heat air flue and tube wall, this ventilation and heat air flue is arranged in this tube wall, this tube wall is made up of metal material or the good material of other thermal conductivity, this ventilation and heat air flue forms this radiation air hole, on this LED board body, offer some through hole, on this protecgulum, offer some hole and light source holes of passing, this LED board body is folded between this bonnet and this protecgulum, this LED light source body passes from this light source hole of this protecgulum, this LED board body is set on some these airducts of this bonnet simultaneously, thereby by this airduct, this LED board body is played to the effect of location, each this airduct should be through passing hole from this LED board body of correspondence, simultaneously, each this airduct passes hole with this on corresponding this protecgulum and is connected, some these LED light source bodies are separately positioned on each this airduct surrounding.
In the time of this LED light source body energising work, the heat that work produces mainly concentrates on this LED board body of this airduct surrounding, this moment, air-flow flows through the heat of taking away on this LED board body from the ventilation and heat air flue of this airduct, thereby reaches the effect of ventilation and heat.
Adopt above-mentioned mode to carry out ventilation and heat in the situation that not needing additionally to increase thermal component, only rely on natural wind just can reach the effect of heat radiation, thereby reduce the working temperature of each this LED secondary module body of entirety.
Beneficial effect of the present invention is: the structure of this ventilative light tight unit of the present invention has great importance in concrete enforcement, the present invention utilizes this radiation air hole directly to carry out ventilation and heat as mentioned above, because this radiating mode is applied on LED display product, simply say by design several air vents on LED display product and dispelling the heat, if the not design of this ventilative light tight unit, so when this display screen is erected at outdoor time, by day in the strong situation of solar radiation, the human eye that is positioned at display screen one side can receive two kinds of light in watching display screen, the light that the first is sent for display screen, the second is to irradiate daylight or other light of coming from the other side transmission display screen of display screen, when the intensity of the second light is greater than or equal to, or when being slightly less than the first light intensity, the inevitable effect that can affect to a great extent the shown image information of human eye reception display screen, and then the phenomenon of generation " cannot see or do not see ".
Embodiment
As shown in Figures 1 to 6, a kind of ventilative light tight LED display, it comprises screen body 100, some radiation airs hole 200 and ventilative light tight unit 300, wherein, in this screen body 100, be provided with LED luminescence unit and control driver module unit, this LED luminescence unit is electrically connected with this control driver module unit, this LED luminescence unit electrified light emitting outwards displays image information.
Some these radiation air holes 200 are arranged to run through and are arranged on this screen body 100.
Each this radiation air hole 200 has the first opening 201 and the second opening 202, and wherein, this first opening 201 is arranged on the front of this screen body 100, and this second opening 202 is arranged on the reverse side of this screen body 100.
First the heat that its work produces in the time of this LED luminescence unit work is transmitted in this screen body 100, this moment, in the time that air-flow flows through from this screen body 100 by some these radiation air holes 200, this air-flow can be taken away the heat that this LED luminescence unit work produces, thereby reaches the effect of high efficiency and heat radiation.
These ventilative light tight unit 300 correspondences are arranged in each this radiation air hole 200.
This ventilative light tight unit 300 can make air-flow also can promote the flowing velocity of air-flow in this radiation air hole 200 by this radiation air hole 200 smoothly.
Meanwhile, this ventilative light tight unit 300 can stop the light of these radiation air hole 200 1 sides directly to arrive an other side in this radiation air hole 200 through this radiation air hole 200 in the mode of straight line.
After the installation that completes this ventilative light tight LED display, the human eye that is positioned at this display screen one side can receive two kinds of light in watching this display screen, the light that the first is sent for this display screen, the second is to see through this radiation air hole 200 from the other side of this display screen to irradiate the light of coming, and this ventilative light tight unit 300 can stop the propagation of this second light.
That is to say, the structure of this ventilative light tight unit 300 has great importance in concrete enforcement, the present invention utilizes this radiation air hole 200 directly to carry out ventilation and heat as mentioned above, because this radiating mode is applied on LED display product, simply say by design several air vents on LED display product and dispelling the heat, if the not design of this ventilative light tight unit 300, so when this display screen is erected at outdoor time, by day in the strong situation of solar radiation, the human eye that is positioned at display screen one side can receive two kinds of light in watching display screen, the light that the first is sent for display screen, the second is to irradiate daylight or other light of coming from the other side transmission display screen of display screen, when the intensity of the second light is greater than or equal to, or when being slightly less than the first light intensity, the inevitable effect that can affect to a great extent the shown image information of human eye reception display screen, and then the phenomenon of generation " cannot see or do not see ".
In concrete enforcement, there is numerous embodiments can realize the above-mentioned functions of this ventilative light tight unit 300, be described below respectively now.
Embodiment mono-, this ventilative light tight unit 300 comprise baffle plate 11 and connecting rod 12.
This baffle plate 11 is erected at by this connecting rod 12 in this second opening 202 in this radiation air hole 200, forms some side air-out mouths 13 by this baffle plate 11 and this connecting rod 12, and some these side air-out mouth 13 rings are located at this baffle plate 11 surroundings.
The wind flux sum total of some these side air-out mouths 13 is less than the wind flux of this first opening 201.
Embodiment bis-, this ventilative light tight unit 300 comprise some sloping baffles 21, and some these sloping baffles 21 are parallel to each other and are co-located in this radiation air hole 200.
The height of each this sloping baffle 21 increases progressively to these the second opening 202 directions from this first opening 201.
Embodiment tri-, this ventilative light tight unit 300 comprise helical baffle 31, and this helical baffle 31 spirals and is arranged in this radiation air hole 200.
The width of this helical baffle 31 self increases progressively to these the second opening 202 directions from this first opening 201.
Embodiment tetra-, this ventilative light tight unit 300 comprise inclined slope piece 32, and this inclined slope piece 32 is inclined in this radiation air hole 200.
The height of this inclined slope piece 32 self increases progressively to these the second opening 202 directions from this first opening 201.
In concrete enforcement, these screen body 100 entirety are installed on fixed frame support body 400 to facilitate installation.
In concrete enforcement, this screen body 100 comprises bonnet 40, LED board body 50 and protecgulum 60, and wherein, some LED light source bodies 70 are connected electrically on this LED board body 50, and some these LED light source bodies 70 pass from this protecgulum 60.
This bonnet 40 comprises some airducts 41, and each this airduct 41 comprises ventilation and heat air flue 411 and tube wall 412, and this ventilation and heat air flue 411 is arranged in this tube wall 412.This tube wall 412 is made up of metal material or the good material of other thermal conductivity, and this ventilation and heat air flue 411 forms this radiation air hole 200.
On this LED board body 50, offer some through hole 51.
On this protecgulum 60, offer some hole 61 and light source holes 62 of passing.
This LED board body 50 is folded between this bonnet 40 and this protecgulum 60, and this LED light source body 70 passes from this light source hole 62 of this protecgulum 60.
This LED board body 50 is set on some these airducts 41 of this bonnet 40 simultaneously, thereby by this airduct 41, this LED board body 50 is played to the effect of location.
Each this airduct 41 should be through passing hole 51 from this LED board body 50 of correspondence, and meanwhile, each this airduct 41 passes hole 61 with this on corresponding this protecgulum 60 and is connected.
Some these LED light source bodies 70 are separately positioned on each these airduct 41 surrounding.
In the time that this LED light source body 70 is switched on work, the heat that work produces mainly concentrates on this LED board body 50 of these airduct 41 surroundings, this moment, air-flow flows through the heat of taking away on this LED board body 50 from the ventilation and heat air flue 411 of this airduct 41, thereby reaches the effect of ventilation and heat.
Adopt above-mentioned mode to carry out ventilation and heat in the situation that not needing additionally to increase thermal component, only rely on natural wind just can reach the effect of heat radiation, thereby reduce the working temperature of each this LED secondary module body 30 of entirety.
Brief description of the drawings
Fig. 1 is perspective view of the present invention.
Fig. 2 is rear view of the present invention.
Fig. 3 is the cross-sectional view of the embodiment of the present invention two.
Fig. 4 is the cross-sectional view of the embodiment of the present invention three.
Fig. 5 is the cross-sectional view of the embodiment of the present invention four.
Fig. 6 is perspective exploded view of the present invention.
Claims (8)
1. a ventilative light tight LED display, it is characterized in that: comprise screen body, some radiation airs hole and ventilative light tight unit, wherein, in this screen body, be provided with LED luminescence unit and control driver module unit, this LED luminescence unit is electrically connected with this control driver module unit, this LED luminescence unit electrified light emitting outwards displays image information, some these radiation air holes are arranged to run through and are arranged on this screen body
Each this radiation air hole has the first opening and the second opening, wherein, this first opening is arranged on the front of this screen body, and this second opening is arranged on the reverse side of this screen body, first the heat that its work produces in the time of this LED luminescence unit work is transmitted in this screen body, this moment, in the time that air-flow flows through from this screen body by some these radiation air holes, this air-flow can be taken away the heat that this LED luminescence unit work produces, thereby reaches the effect of high efficiency and heat radiation
This ventilative light tight unit correspondence is arranged in each this radiation air hole, this ventilative light tight unit can make air-flow also can promote the flowing velocity of air-flow in this radiation air hole by this radiation air hole smoothly, simultaneously, this ventilative light tight unit can stop the light of this radiation air hole one side directly to arrive an other side in this radiation air hole through this radiation air hole in the mode of straight line, after the installation that completes this ventilative light tight LED display, the human eye that is positioned at this display screen one side can receive two kinds of light in watching this display screen, the light that the first is sent for this display screen, the second is to see through this radiation air hole from the other side of this display screen to irradiate the light of coming, this ventilative light tight unit can stop the propagation of this second light.
2. the ventilative light tight LED display of one as claimed in claim 1, it is characterized in that: this ventilative light tight unit comprises baffle plate and connecting rod, this baffle plate is erected at by this connecting rod in this second opening in this radiation air hole, form some side air-out mouths by this baffle plate and this connecting rod, some these side air-out chomas are located at this baffle plate surrounding, and the wind flux sum total of some these side air-out mouths is less than the wind flux of this first opening.
3. the ventilative light tight LED display of one as claimed in claim 1, it is characterized in that: this ventilative light tight unit comprises some sloping baffles, some these sloping baffles are parallel to each other and are co-located in this radiation air hole, and the height of each this sloping baffle increases progressively to this second opening direction from this first opening.
4. the ventilative light tight LED display of one as claimed in claim 1, it is characterized in that: this ventilative light tight unit comprises helical baffle, this helical baffle spirals and is arranged in this radiation air hole, and the width of this helical baffle self increases progressively to this second opening direction from this first opening.
5. the ventilative light tight LED display of one as claimed in claim 1, it is characterized in that: this ventilative light tight unit comprises inclined slope piece, this inclined slope piece is inclined in this radiation air hole, and the height of this inclined slope piece self increases progressively to this second opening direction from this first opening.
6. the ventilative light tight LED display of one as claimed in claim 1, is characterized in that: this screen body entirety is installed in fixed frame support body.
7. the ventilative light tight LED display of one as claimed in claim 1, it is characterized in that: this screen body comprises bonnet, LED board body and protecgulum, wherein, some LED light source bodies are connected electrically on this LED board body, and some these LED light source bodies pass from this protecgulum, and this bonnet comprises some airducts, each this airduct comprises ventilation and heat air flue and tube wall, this ventilation and heat air flue is arranged in this tube wall, and this ventilation and heat air flue forms this radiation air hole
On this LED board body, offer some through hole, on this protecgulum, offer some hole and light source holes of passing, this LED board body is folded between this bonnet and this protecgulum, this LED light source body passes from this light source hole of this protecgulum, this LED board body is set on some these airducts of this bonnet simultaneously, thereby by this airduct, this LED board body is played to the effect of location, each this airduct should be through passing hole from this LED board body of correspondence, simultaneously, each this airduct passes hole with this on corresponding this protecgulum and is connected, some these LED light source bodies are separately positioned on each this airduct surrounding, in the time of this LED light source body energising work, the heat that work produces mainly concentrates on this LED board body of this airduct surrounding, this moment, air-flow flows through the heat of taking away on this LED board body from the ventilation and heat air flue of this airduct, thereby reach the effect of ventilation and heat.
8. the ventilative light tight LED display of one as claimed in claim 7, is characterized in that: this tube wall is made up of metal material.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332392.1A CN104077974B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative light tight LED display |
| CN201610363017.2A CN105845043B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative opaque LED display with helical baffle structure |
| CN201610356685.2A CN105869532A (en) | 2014-07-14 | 2014-07-14 | Ventilating light-proof LED panel with inclined stopping plate structure |
| CN201610356683.3A CN105845042A (en) | 2014-07-14 | 2014-07-14 | Ventilating and light-tight LED (light-emitting diode) display screen with oblique slope block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332392.1A CN104077974B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative light tight LED display |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610356685.2A Division CN105869532A (en) | 2014-07-14 | 2014-07-14 | Ventilating light-proof LED panel with inclined stopping plate structure |
| CN201610356683.3A Division CN105845042A (en) | 2014-07-14 | 2014-07-14 | Ventilating and light-tight LED (light-emitting diode) display screen with oblique slope block structure |
| CN201610363017.2A Division CN105845043B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative opaque LED display with helical baffle structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104077974A true CN104077974A (en) | 2014-10-01 |
| CN104077974B CN104077974B (en) | 2016-09-07 |
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332392.1A Active CN104077974B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative light tight LED display |
| CN201610356683.3A Pending CN105845042A (en) | 2014-07-14 | 2014-07-14 | Ventilating and light-tight LED (light-emitting diode) display screen with oblique slope block structure |
| CN201610356685.2A Pending CN105869532A (en) | 2014-07-14 | 2014-07-14 | Ventilating light-proof LED panel with inclined stopping plate structure |
| CN201610363017.2A Active CN105845043B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative opaque LED display with helical baffle structure |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610356683.3A Pending CN105845042A (en) | 2014-07-14 | 2014-07-14 | Ventilating and light-tight LED (light-emitting diode) display screen with oblique slope block structure |
| CN201610356685.2A Pending CN105869532A (en) | 2014-07-14 | 2014-07-14 | Ventilating light-proof LED panel with inclined stopping plate structure |
| CN201610363017.2A Active CN105845043B (en) | 2014-07-14 | 2014-07-14 | A kind of ventilative opaque LED display with helical baffle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN104077974B (en) |
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| CN106023823A (en) * | 2016-05-27 | 2016-10-12 | 广西东显电子有限公司 | Led display screen |
| WO2017146952A1 (en) * | 2016-02-25 | 2017-08-31 | Digital Outdoor Llc | Vented led display and method of manufacturing |
| CN110060584A (en) * | 2019-06-21 | 2019-07-26 | 江苏金晓电子信息股份有限公司 | A kind of lightness traffic changeable-message sign display module |
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| CN106639371A (en) * | 2016-11-24 | 2017-05-10 | 河北郎尊电力科技有限公司 | Waterlogging preventing charging pile |
| JP6214830B1 (en) * | 2016-12-28 | 2017-10-18 | 三菱電機株式会社 | Light emitting unit, display device, and multi display device |
| CN107599840A (en) * | 2017-09-11 | 2018-01-19 | 天津富民伟业科技有限公司 | Automobile instrument panel framework |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105845043B (en) | 2018-12-07 |
| CN104077974B (en) | 2016-09-07 |
| CN105845042A (en) | 2016-08-10 |
| CN105845043A (en) | 2016-08-10 |
| CN105869532A (en) | 2016-08-17 |
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Effective date of registration: 20161110 Address after: 518000, Shenzhen, Baoan District Shiyan street, the first community community road, precious stones gem science and Technology Park C building Patentee after: Shenzhen City Qi Puguang electronic Limited by Share Ltd Address before: 518000 Guangdong City, Nanshan District Province, the former sea road, No. 3101 Xinghai City, the group of 5, 8 17A Patentee before: Wu Xiaogang |