CN108320678A - A kind of advertising lamp box - Google Patents
A kind of advertising lamp box Download PDFInfo
- Publication number
- CN108320678A CN108320678A CN201810383459.2A CN201810383459A CN108320678A CN 108320678 A CN108320678 A CN 108320678A CN 201810383459 A CN201810383459 A CN 201810383459A CN 108320678 A CN108320678 A CN 108320678A
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- Prior art keywords
- panel
- actuator
- panel unit
- display
- lamp box
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- 239000000084 colloidal system Substances 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 31
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
- G09F11/02—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being secured to rotating members, e.g. drums, spindles
- G09F11/10—Electrical control therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The present invention provides a kind of advertising lamp box, including babinet and display panel, the display panel include panel module and light source module；The panel module includes：In side by side or the multiple panel units being set up in parallel and the first actuator being arranged in a one-to-one correspondence with panel unit, complete billboard is cut into more parts, and it is set in turn on the display surface of multiple panel units, common combination forms a complete billboard information between the display surface of multiple panel units, and panel unit is equipped with multiple display surfaces, can load a variety of billboard information；Each panel unit is internally provided with multiple light sources unit, the packing colloid rotation of light source unit is controlled by controller, and then control the light extraction light efficiency of each light source unit, different light efficiencies can be shown according to the emphasis position of different billboard information, to play effect emphatically, pedestrian is allowed to understand keynote message within the shortest time, realizes lively publicity, the impression for reinforcing pedestrian, keeps advertising results more preferable.
Description
Technical field
The present invention relates to lamp box fields, and in particular to a kind of advertising lamp box.
Background technology
Advertising lamp box is a kind of square box for advertisement-printing used outdoors, is used exclusively for publishing various wide
The babinet of announcement, babinet interior mainly lamps and lanterns and advertising poster.Advertising lamp box is a kind of very common city in daily life
Factor is widely used in market, haircut, the chain StoreFront of beauty, railway station, freeway toll station, parking lot, hotel, amusement
The places such as place, bank's photo studio.
Current advertising lamp box is varied, have whole advertising page in attaching type, also has and overturn by spool, such as in
State's invention number of patent application is described in a kind of advertising lamp box disclosed in CN201710608623.0.But above-mentioned either attaching type
Or spool overturning, inside only setting one arbitrary source, such as LED lamp tube, carry out integral illumination, be only merely
Satisfaction can allow people to see the purpose of billboard, and the emphasis of advertisement, especially advertisement at this stage can not be protruded from visual illumination
Publicity can not preferably be played the role of at all by being full of more serious, conventional mode.
Invention content
For this purpose, the present invention, which provides one kind, can load a variety of billboard information；And can according to the ad content of billboard,
It carries out different illumination to be distinguished, to realize the advertising lamp box vividly publicized.
To achieve the above object, a kind of advertising lamp box provided by the invention, including babinet and display panel, on the babinet
Equipped with a display window, the display panel is arranged in display window, and the display panel includes panel module and light source die
Block；
The panel module includes：In multiple panel units for being set up in parallel and corresponding side by side or with panel unit
The first actuator being arranged, the panel unit are hollow strip structure, and all sides carry advertising information at least provided with two
Display surface, first actuator is drivingly connected the panel unit, to drive the panel unit to rotate, and then switches not
It is complete to form one when display surface of multiple panel units with respective advertisement information is in same plane for same display surface
Billboard；
The panel unit internal clearance is equipped with a connection shaft, and the light source module is equipped with multigroup and corresponds panel
Unit, the light source module include along the connection shaft axial direction be set in turn in connection shaft on multiple light sources list
Member, the light source unit include：LED illuminator, the packing colloid of hollow circle tube and the second actuator, the LED illuminator
All sides of connection shaft are located on, the packing colloid is rotatably sheathed on connection shaft and covers the LED illuminator,
The colour temperature of the packing colloid in circumferential direction is in gradual change or stepped change, and second actuator is drivingly connected the encapsulation
Colloid, to drive the packing colloid to rotate；
Further include a controller, the controller control connects first actuator and the second actuator.
A kind of preferred embodiment of the present invention is equipped with light guide plate between the end and connection shaft of the packing colloid, will
The lateral light extraction of LED illuminator is directed on the packing colloid of face LED illuminator.
Another preferred embodiment of the present invention, the connection shaft are heat dissipation shaft.
Further, the connection shaft is to be equipped with recirculated cooling water in heat pipe structure or connection shaft.
Another preferred embodiment of the present invention, the cross section structure triangular in shape of the panel unit, there are three aobvious for tool
Presentation surface.
The cross section of another preferred embodiment of the present invention, the panel unit is in tetragonal structure, and there are four aobvious for tool
Presentation surface.
Further, the display surface between the adjacent panel unit fits, and the panel unit is along connecting shaft
Bar has displacement space in the radial direction, and stroke component, first driving are equipped between first actuator and babinet
When part driving panel unit rotation, panel unit is driven to be moved in displacement space by stroke component, to make way for phase successively
The rotation of panel units.
Further, first actuator is driving motor, and the stroke component includes being arranged in the first actuator
Driving end on gear and the tooth band that is arranged on babinet, the gear be meshed with tooth band.
Another preferred embodiment of the present invention, second actuator are piezoelectric fabric rotating driver.
Another preferred embodiment of the present invention, is additionally provided with multiple access cabinets on the babinet, in the cabinet door of the access cabinet
It is respectively equipped with display module and keyboard input module, the output end of the keyboard input module connects the input of the controller
End, the output end of the controller connect the input terminal of the display module, the control output end also company of control of the controller
Connect the cabinet lock of the access cabinet.
The technical solution provided through the invention, has the advantages that：
Complete billboard is cut into more parts, and is set in turn on the display surface of multiple panel units, multiple faces
Common combination forms a complete billboard information between the display surface of plate unit, and panel unit is equipped with multiple display tables
Face can load a variety of billboard information；
Each panel unit is internally provided with multiple light sources unit, and each light source unit is independent, and passes through controller control
The packing colloid of light source unit processed rotates, so control each light source unit light extraction light efficiency (such as go out light color, go out luminous intensity or
Colour temperature etc.), it can show different light efficiencies according to the emphasis position of different billboard information, to play effect emphatically, give way
People understands keynote message within the shortest time, realizes lively publicity, reinforces the impression of pedestrian, keep advertising results more preferable.
Description of the drawings
Fig. 1 show the structural schematic diagram of advertising lamp box in embodiment one；
Fig. 2 show the part-structure schematic diagram of the display panel of advertising lamp box in embodiment one；
Fig. 3 show the transversary schematic diagram of packing colloid in embodiment one；
Fig. 4 show the functional block diagram of advertising lamp box in embodiment one；
Fig. 5 show the part-structure schematic diagram of the display panel of advertising lamp box in embodiment two.
Specific implementation mode
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be coordinated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
In conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one
Shown in Fig. 4, a kind of advertising lamp box provided in this embodiment, including babinet 10 and display panel, it is described
Babinet 10 is equipped with a display window, and the display panel is arranged in display window, and the display panel includes panel module
And light source module.
The panel module includes：It is set in three panel units 21 being set up in parallel and with the one-to-one correspondence of panel unit 21
The first actuator 22 set, the panel unit 21 are hollow strip structure, and cross section structure triangular in shape, all sides are set
There are three display surfaces 211, and first actuator 22 is driving motor, and is drivingly connected the panel unit 21, with driving
The panel unit 21 rotates, and then switches different display surfaces 211.
21 internal clearance of the panel unit is equipped with a connection shaft 31, and the light source module is equipped with three groups and corresponds
Panel unit 21, the light source module include along the connection shaft 31 axial direction be set in turn in connection shaft 31 on it is more
A light source unit, the light source unit include：LED illuminator 32, the packing colloid 33 of hollow circle tube and the second actuator 35,
The luminescence chip of the LED illuminator 32 is blue-light LED chip, and the LED illuminator 32 is packaged in the side of connection shaft 31
Face, the packing colloid 33 are rotatably sheathed on connection shaft 31 and cover the LED illuminator 32, the LED illuminator
32 light is incident upon on packing colloid 33 and is emitted again, and the emergent light in the circumferential direction of the packing colloid 33 is in ladder
Variation, specifically, as shown in figure 3, in the present embodiment, packing colloid have in its circumferential direction there are four region, be the respectively
One region 331, second area 332, third region 333 and the fourth region 334, the first area 331 are transparent adhesive tape, LED hairs
The light of body of light 32 is incident upon first area 331, and the light being emitted is blue light；The second area 332, third region 333 and the 4th
Region 334 is fluorescent glue, and the light of LED illuminator is incident upon second area 332, third region 333 and the fourth region 334, emitted
Light be white light.Further, the colour temperature for the white light that second area 332, third region 333 and the fourth region 334 are emitted is not
Together, second area 332 is the warm white of 3000K, and third region 333 is the white light of 4500K, and the fourth region 334 is the cold of 6000K
In vain, the configuration of specific fluorescent glue is those skilled in the art can realize that this will not be detailed here easily.
It is equipped with light guide plate 34 between the end and connection shaft 31 of the packing colloid 33, LED illuminator 32 is lateral
Light extraction is directed on the packing colloid 33 of face LED illuminator 32, avoids mutual shadow between the light between adjacent light source unit
It rings and veiling glare occurs, while also enhancing and luminous intensity, specifically, the material of the light guide plate is the light guide plate of conventional LED panel lamp
Material is identical.Further, in other embodiments, it can also be not necessarily to that the light guide plate 34 is arranged；Alternatively, can be by the light guide plate
34 are substituted for reflector etc..
Second actuator 35 is piezoelectric fabric rotating driver, and concrete structure can refer to Chinese invention patent application
Number for a kind of rotating driver based on piezoelectric fabric disclosed in CN201710212065.The piezoelectric fabric rotating driver 35
It is drivingly connected the packing colloid 33, to drive the packing colloid 33 to rotate.
Further include a controller 40, the control of the controller 40 connects 22 and second actuator 35 of the first actuator,
Switch display surface 211 with control panel unit 21 respectively, and control packing colloid 33 rotates, and display table is exposed to control
Luminous efficiency of source on face 211.In this specific embodiment, the controller 40 be in the prior art with control function chip or
System, such as microcontroller, MCU or PLC can be achieved, and specific structure and connection relation are those skilled in the art
It grasps already, this will not be detailed here.
It is additionally provided with multiple access cabinets 51 on the babinet 10, display module 53 is respectively equipped in the cabinet door of the access cabinet 51
With keyboard input module 52, the output end of the keyboard input module 52 connects the input terminal of the controller 40, the control
The output end of device 40 connects the input terminal of the display module 53, and the control output end of the controller 40 also controls described in connection
Access the cabinet lock of cabinet 51.
Its concrete operations principle is as follows：Complete billboard is cut into three parts, and is set in turn in three panel units
On 21 display surface 211, when display surface 211 of three panel units 21 with respective advertisement information is in same plane
When, a complete billboard is formed, and panel unit 21 is set there are three display surface 211, can load three kinds of billboard information；
For each billboard, the position of keynote message can be input to by way of programming in controller 40 in advance, controller
40 control panel units 21 switch display surface 211, then control the rotation of packing colloid 33 of light source unit, and then control each light
The light extraction light efficiency of source unit can show different light efficiencies, to play emphatically according to the emphasis position of different billboard information
Effect (uses the blue light illumination of first area 331, other use the second area of single packing colloid 33 in place of such as emphasis
332, third region 333 or the fourth region 334 are irradiated；Or irradiated using the cool white of the fourth region 334 in place of emphasis,
Other are irradiated etc. using second area 332, third region 333 or the first area 331 of single packing colloid).It allows
Pedestrian understands keynote message within the shortest time, realizes lively publicity, reinforces the impression of pedestrian, keep advertising results more preferable.Together
When, setting access cabinet 51 facilitates pedestrian to access temporarily；Setting display module 53 and keyboard input module 52 on access cabinet 51,
Can be the problem of display to be about billboard information on display module 53, pedestrian answers from keyboard input module 51, answers just
Controller 40 controls the lock unlatching of cabinet door when really, carries out normal access article, can further enhance advertisement.
Further, in the present embodiment, the connection shaft 31 is heat dissipation shaft, specially heat pipe structure or connection shaft
It is interior to be equipped with recirculated cooling water.So set, heat can in time shed caused by the LED chip by light source unit, increases and use
Service life.
Further, in the present embodiment, LED illuminator 32 and the setting of the second actuator 35 are on heat dissipation shaft 31, tool
The electrical interconnection of body is directly integrated in the surface of heat dissipation shaft 31, this, which is those skilled in the art, to realize easily,
This will not be detailed here.
Further, in the present embodiment, there are three the settings of panel unit 21, in other embodiments, panel unit 21
Quantity can be set according to actual conditions；Meanwhile panel unit 21 in other embodiments, can also be arranged in being set up in parallel
It at being arranged side by side, or is obliquely installed, specific arrangement can be depending on actual conditions.
Further, in the present embodiment, the emergent light in the circumferential direction of the packing colloid 33 is in stepped change, rank
The quantity of ladder variation can be set according to actual conditions, and the type of LED chip can also replace accordingly, such as will be in the present embodiment
Blue-light LED chip replace or increase red LED chip, green LED chip etc.；Or in other embodiments, packaging plastic
Emergent light in the circumferential direction of body 33 can also be arranged in grading structure, such as be faded between the cool white of 6000K from the warm of 3000K
Gradual change successively, above-mentioned change are that those skilled in the art grasps already, and this will not be detailed here.
Embodiment two
Advertising lamp box provided in this embodiment, it is roughly the same with the structure in embodiment one, the difference is that：With reference to figure
Shown in 5, the cross section of the panel unit 21 is in tetragonal structure, and there are four display surfaces 211 for tool.The adjacent panel list
Display surface 211 between member 21 fits, and the panel unit 21 is in radial direction (and the vertical side along connection shaft 31
To) on there is displacement space, stroke component is equipped between first actuator 22 and babinet 10, first actuator 22 drives
When dynamic panel unit 21 rotates, panel unit 21 is driven to be moved in displacement space by stroke component, to make way for phase successively
The rotation of panel units 21.
Specifically, in the present embodiment, first actuator 22 is driving motor, and the stroke component includes setting the
Gear (not shown) on the driving end of one actuator 22 and the tooth band (not shown) being arranged on babinet 10, the gear with
Tooth band is meshed.While driving motor driving panel unit 21 rotates, by the cooperation of gear and tooth band, moved accordingly
It is dynamic, such as：The panel unit 21 of the top starts to rotate, and the panel unit 21 of the top will be shifted up certain distance after rotation, then,
Second panel unit 21 starts to rotate again, and after completing rotation, second panel unit 21 moves up identical distance, and shows table
Face 211 and the display surface 211 of first panel unit 21 fit, and are sequentially completed the rotation of all panel units 21.Anti-
To when rotation, is rotated successively since the panel unit 21 of bottom, sequentially form resigning distance.
In the present embodiment, the setting of gear and tooth band is that those skilled in the art can be easily by foregoing description content
It realizes, in other embodiments, above-mentioned stroke component can also be realized using push rod in the prior art, pass through push rod
Drive panel unit to move up and down one by one, it is same to can be achieved to step down, still, be arranged such it is complicated, it is of high cost, be not compared with
For preferred scheme.
In the present embodiment, the display surface 211 between the adjacent panel unit 21 fits so that billboard information is held in the mouth
Connecing property is good, but needs resigning distance of the setting for overturning when.In other embodiments, between the adjacent panel unit 21
Can be in gap setting, for rotation step down, step down successively without moving up and down, but the connecting of billboard information compared with
Difference.
In above-described embodiment one and embodiment two, individually disclosing tool, there are three display surface 211 and four display surfaces
211 panel unit 21, in other embodiments, the display surface 211 of panel unit 21 can also be arranged to other quantity,
Such as two or five or more, as long as making corresponding improved shape on panel unit, this is those skilled in the art
It can convert, just no longer be described in detail one by one herein easily.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
In vain, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of advertising lamp box, including babinet and display panel, the babinet is equipped with a display window, and the display panel is set
It sets in display window, it is characterised in that：The display panel includes panel module and light source module；
The panel module includes：In multiple panel units for being set up in parallel and being arranged in a one-to-one correspondence side by side or with panel unit
The first actuator, the panel unit is hollow strip structure, and all sides are aobvious with advertising information at least provided with two
Presentation surface, first actuator are drivingly connected the panel unit, to drive the panel unit to rotate, and then switch different aobvious
It is complete wide to form one when display surface of multiple panel units with respective advertisement information is in same plane for presentation surface
Accuse board；
The panel unit internal clearance is equipped with a connection shaft, and the light source module is equipped with multigroup and corresponds panel list
Member, the light source module include along the connection shaft axial direction be set in turn in connection shaft on multiple light sources unit,
The light source unit includes：LED illuminator, the packing colloid of hollow circle tube and the second actuator, the LED illuminator encapsulation
In all sides of connection shaft, the packing colloid is rotatably sheathed on connection shaft and covers the LED illuminator, described
The light of LED illuminator is incident upon on packing colloid and is emitted again, and the emergent light in the circumferential direction of the packing colloid is in
Gradual change or stepped change, second actuator are drivingly connected the packing colloid, to drive the packing colloid to rotate；Further include
One controller, the controller control connect first actuator and the second actuator.
2. advertising lamp box according to claim 1, it is characterised in that：Between the end and connection shaft of the packing colloid
Equipped with light guide plate, the lateral light extraction of LED illuminator is directed on the packing colloid of face LED illuminator.
3. advertising lamp box according to claim 1, it is characterised in that：The connection shaft is heat dissipation shaft.
4. advertising lamp box according to claim 3, it is characterised in that：The connection shaft is heat pipe structure or connection shaft
It is interior to be equipped with recirculated cooling water.
5. advertising lamp box according to claim 1, it is characterised in that：The cross section knot triangular in shape of the panel unit
Structure, there are three display surfaces for tool.
6. advertising lamp box according to claim 1, it is characterised in that：The cross section of the panel unit is in square knot
Structure, there are four display surfaces for tool.
7. advertising lamp box according to claim 6, it is characterised in that：Display surface phase between the adjacent panel unit
Fitting, the panel unit have a displacement space in the radial direction along connection shaft, first actuator and babinet it
Between be equipped with stroke component, when the first actuator driving panel unit rotation, drive panel unit in place by stroke component
It moves in space and moves, to make way for the rotation of adjacent panel units successively.
8. advertising lamp box according to claim 7, it is characterised in that：First actuator is driving motor, the row
Journey component includes the gear being arranged on the driving end of the first actuator and the tooth band being arranged on babinet, the gear and tooth
Band is meshed.
9. advertising lamp box according to claim 1, it is characterised in that：Second actuator is piezoelectric fabric rotation driving
Device.
10. advertising lamp box according to claim 1, it is characterised in that：Multiple access cabinets are additionally provided on the babinet, it is described
It accesses and is respectively equipped with display module and keyboard input module in the cabinet door of cabinet, described in the output end connection of the keyboard input module
The input terminal of controller, the output end of the controller connect the input terminal of the display module, and the control of the controller is defeated
Outlet also controls the cabinet lock for connecting the access cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383459.2A CN108320678A (en) | 2018-04-26 | 2018-04-26 | A kind of advertising lamp box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810383459.2A CN108320678A (en) | 2018-04-26 | 2018-04-26 | A kind of advertising lamp box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108320678A true CN108320678A (en) | 2018-07-24 |
Family
ID=62895416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810383459.2A Pending CN108320678A (en) | 2018-04-26 | 2018-04-26 | A kind of advertising lamp box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108320678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114203075A (en) * | 2021-12-17 | 2022-03-18 | 安徽特弗光电科技有限公司 | Can change advertising information's environmental protection lamp house for bus shelter automatically |
| CN115143721A (en) * | 2021-03-31 | 2022-10-04 | 青岛海尔电冰箱有限公司 | Display module assembly and refrigerating device |
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| CN103839497A (en) * | 2014-03-21 | 2014-06-04 | 上海嘉塘电子发展有限公司 | Light transmission type LED advertising lamp box |
| CN206162691U (en) * | 2016-09-29 | 2017-05-10 | 山东财经大学 | Commodity propaganda system of enterprise |
| CN208126790U (en) * | 2018-04-26 | 2018-11-20 | 厦门多彩光电子科技有限公司 | A kind of advertising lamp box |
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| CN115143721A (en) * | 2021-03-31 | 2022-10-04 | 青岛海尔电冰箱有限公司 | Display module assembly and refrigerating device |
| CN115143721B (en) * | 2021-03-31 | 2023-10-24 | 青岛海尔电冰箱有限公司 | Display module and refrigerating device |
| CN114203075A (en) * | 2021-12-17 | 2022-03-18 | 安徽特弗光电科技有限公司 | Can change advertising information's environmental protection lamp house for bus shelter automatically |
| CN114203075B (en) * | 2021-12-17 | 2023-11-24 | 安徽特弗光电科技有限公司 | Can change advertisement information's public transit bus shelter automatically with environmental protection lamp house |
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Application publication date: 20180724 |