CN113470544B - Outdoor grille screen - Google Patents

Outdoor grille screen Download PDF

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Publication number
CN113470544B
CN113470544B CN202110699751.7A CN202110699751A CN113470544B CN 113470544 B CN113470544 B CN 113470544B CN 202110699751 A CN202110699751 A CN 202110699751A CN 113470544 B CN113470544 B CN 113470544B
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China
Prior art keywords
mounting
led lamp
groove
plate body
limiting rod
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CN202110699751.7A
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CN113470544A (en
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蒋顺才
余国华
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Shenzhen Auroled Technology Co ltd
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Shenzhen Auroled Technology Co ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating 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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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The utility model belongs to the technical field of the technique of curtain and specifically relates to an outdoor grid screen is related to, and it includes the mounting plate body, and the mounting hole of multiseriate parallel arrangement is seted up to the mounting plate body, and the mounting plate body is connected with and a plurality of installed parts, and a plurality of installed parts correspond the setting with each multiseriate mounting hole respectively, install the PCB board in the installed part, the LED lamp body that PCB board and every row of mounting hole one-to-one set up. This application has the effect that the staff of being convenient for carries out the installation to the LED lamp.

Description

Outdoor grille screen
Technical Field
The application relates to the field of curtain walls, in particular to an outdoor grating screen.
Background
The curtain wall is mainly used as an outer wall enclosure of a building, does not bear load, is hung like a curtain, is also called as a curtain wall and is a common light wall body of modern large and high-rise buildings. The aluminum curtain wall is a common curtain wall in the curtain wall, and is convenient for improving the display effect of the aluminum curtain wall installed outdoors, and an outdoor grid screen is installed on the outdoor aluminum curtain wall.
An outdoor grid screen among the correlation technique is including the mounting plate body, and the mounting plate body has seted up multiseriate mounting hole, all installs the LED lamp in each mounting hole to be used for improving the bandwagon effect of curtain.
In view of the above-mentioned related technologies, the inventor thinks that when the LED lamp is installed, the worker needs to install each LED lamp into each mounting hole in sequence, and the installation operation of the LED lamp is complicated.
Disclosure of Invention
In order to facilitate the staff to install the LED lamp, this application provides an outdoor grille screen.
The application provides an outdoor grille screen adopts following technical scheme:
the utility model provides an outdoor grille screen, includes the mounting plate body, the mounting plate body sets up multiseriate parallel arrangement's mounting hole, the mounting plate body be connected with a plurality of installed parts, it is a plurality of the installed part corresponds the setting with each multiseriate mounting hole respectively, install the PCB board in the installed part, the LED lamp body that PCB board and every row of mounting hole one-to-one set up.
Through adopting above-mentioned technical scheme, the LED lamp body can be predetermine and install in the PCB board, will install each LED lamp body correspondence of PCB board and place in every mounting hole that is listed as to fix the installation plate body and installed part can accomplish the installation to the LED lamp body, need not during the installation of LED lamp body that the staff installs each LED lamp to each mounting hole in proper order, thereby make the operation that the staff installed the LED lamp body quick simple and convenient.
Optionally, a mounting groove is formed in one side of the mounting part, the PCB is mounted in the mounting groove, positioning rings are mounted on the PCB and are in one-to-one correspondence with the mounting holes in each row, each LED lamp body of the PCB is located in each positioning ring, and the positioning rings, the LED lamp bodies and the PCB are fixed in the mounting groove through glue filling.
Through adopting above-mentioned technical scheme, the setting of holding ring plays the location indicative function when installing each LED lamp body to be difficult for touching mutually with the mounting panel body when making the staff install each LED lamp body to the each mounting hole of mounting panel body, simultaneously, the holding ring plays the positioning action to the position when the LED lamp body is glued fixedly in the encapsulating, makes the difficult skew in the fixed back position of LED lamp body encapsulating.
Optionally, the mounting groove is provided with a mounting guide surface near the notch thereof in an inclined manner.
Through adopting above-mentioned technical scheme, the setting up of installation spigot surface has certain clearance transition when making the PCB board install in the mounting groove, and then the staff of being convenient for installs the PCB board in the mounting groove.
Optionally, the mounting groove runs through the mounting part setting along the length direction of mounting part, mounting part length direction's both sides are provided with one respectively and open and close the board, open and close the board and be used for opening and close the notch of mounting groove horizontal direction, open and close board fixedly connected with screens piece, the mounting part has been seted up with screens piece joint complex screens groove.
Through adopting above-mentioned technical scheme, the mounting groove runs through the setting of installed part along installed part length direction and is convenient for the staff to carry out the micro-adjustment of horizontal direction to the PCB board of placing in the mounting groove, and simultaneously, the cooperation in screens piece and screens groove makes the mounting structure of opening and close the board simple, and the practicality is strong.
Optionally, one side of the mounting piece, which is far away from the mounting plate body, is provided with at least one limiting rod, the limiting rod is provided with limiting grooves which are in one-to-one correspondence with the positions of the mounting pieces, and the mounting pieces are respectively in clamping fit with the limiting grooves.
Through adopting above-mentioned technical scheme, at first install each installed part joint in each mounting groove of gag lever post, remove the gag lever post afterwards and can make each installed part move in step, when the staff installs each installed part and installation plate body, the application of force removes the gag lever post and can move all installed parts to make staff's easy and simple to handle.
Optionally, the limiting rod is provided with a plurality of wire passing grooves which are perpendicular to the length direction of the limiting rod and penetrate through the limiting rod.
Through adopting above-mentioned technical scheme, the setting of crossing the wire casing is convenient for the staff to carry out the winding displacement to the connecting wire or the external line of each LED lamp to make the difficult interference of circuit, the easy access.
Optionally, the limiting rod is provided with a lightening hole which penetrates through the limiting rod along the length direction of the limiting rod.
Through adopting above-mentioned technical scheme, being provided with of lightening hole does benefit to and alleviates the whole weight of gag lever post under the condition of guaranteeing gag lever post structural strength, and then is convenient for the staff application of force and removes the gag lever post.
Optionally, the fixed equal fixedly connected with of installed part corresponds the guide that sets up with the gag lever post, each when the installed part joint is in the spacing groove, the guide is inconsistent with the gag lever post.
Through adopting above-mentioned technical scheme, the guide part plays the location guide effect when installing each installed part to be convenient for the staff with each installed part install to with the gag lever post looks joint fixed same length position fast.
Optionally, a junction box is installed on one side, away from the installation plate body, of the installation part, a connecting wire is installed on the junction box, a protection cover covering the connecting wire is installed on the installation part, and a wiring hole is formed in the protection cover.
Through adopting above-mentioned technical scheme, the setting of terminal box and connecting wire is convenient for be connected LED lamp body and external line, and the setting of protection casing plays the guard action to the connecting wire to be favorable to guaranteeing the life of connecting wire.
Optionally, the protection casing fixedly connected with sliding block, sliding block and screens groove sliding fit, when sliding block slided into the screens inslot, the protection casing was adsorbed fixedly with the terminal box through a pair of magnet that attracts mutually.
Through adopting above-mentioned technical scheme, the guide effect when the sliding block plays the protection casing installation to the staff of being convenient for removes the protection casing to its fixed position of time, and the fixed setting of strength magnets makes the fixed operation between protection casing and terminal box simple and convenient fast, and is convenient for dismantle the junction box, and then the staff of being convenient for overhauls and maintains the connecting wire.
In summary, the present application includes at least one of the following beneficial technical effects:
the LED lamp bodies installed on the PCB are correspondingly placed in the installation holes in each row, the PCB and the installation pieces are fixed, and therefore the LED lamp bodies can be installed.
The setting of holding ring plays the location indicative function when installing each LED lamp body to be difficult for touching with the mounting panel body when making the staff install each LED lamp body to each mounting hole of mounting panel body, guarantee the installation quality of LED lamp body.
The setting of gag lever post makes the staff install each installed part joint in each mounting groove of gag lever post, removes the gag lever post afterwards and can make each installed part move in step to be favorable to further simple and convenient staff to carry out the operation installed to the LED lamp body.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.
Fig. 2 is an exploded view of the mounting member and the mounting plate in embodiment 1 of the present application.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic view of the connection relationship between the protection cover and the mounting member in embodiment 1 of the present application.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.
Fig. 6 is a schematic view of the overall structure of embodiment 2 of the present application.
Fig. 7 is a schematic view of the connection relationship between the protective cover and the junction box in embodiment 3 of the present application.
Fig. 8 is a partially enlarged schematic view of a portion C in fig. 7.
Description of reference numerals: 1. installing a plate body; 2. mounting holes; 3. a mounting member; 4. mounting grooves; 5. a shutter plate; 6. a bit block; 7. a clamping groove; 8. chamfering; 9. a PCB board; 10. an LED lamp body; 11. a positioning ring; 12. a connecting rod; 13. installing a guide surface; 14. a limiting rod; 15. a limiting groove; 16. a wire passing groove; 17. lightening holes; 18. a junction box; 19. a connecting wire; 20. a protective cover; 21. a sliding block; 22. a wiring hole; 23. a guide member; 24. a first magnet; 25. a second magnet.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses outdoor grille screen.
Example 1.
Referring to fig. 1 and 2, outdoor grille screen includes the installation plate body 1, and the installation plate body 1 has a plurality of rows of parallel arrangement and runs through the mounting hole 2 that sets up. One side of the installation plate body 1 is provided with a plurality of rectangular form installed parts 3 that are, and the quantity of installed part 3 can be according to the corresponding setting of actual required condition, and installed part 3 is provided with a plurality ofly with each row of mounting hole 2 one-to-one interval correspondence in the embodiment of this application.
Referring to fig. 2 and 3, mounting bracket 3 has seted up mounting groove 4 towards one side of mounting bracket body 1, mounting groove 4 runs through the both ends of mounting bracket 3 along the length direction of mounting bracket 3, 3 length direction's of mounting bracket both sides are provided with one respectively and open and close board 5, open and close the three screens piece 6 of the equal fixedly connected with of board 5, three screens groove 7 that distribute along the horizontal direction and set up with three screens piece 6 one-to-one are all seted up at 3 length direction's of mounting bracket both ends, each screens groove 7 all extends to one side that mounting bracket body 1 was kept away from to mounting bracket 3. The screens piece 6 cooperates with screens groove 7 joint, and when each screens piece 6 blocked each screens inslot 7 respectively, open and close 5 fixed in position of board, and open and close 5 notch that seal 4 horizontal directions in mounting groove, screens piece 6 makes the quick simple and convenient of the installation of opening and closing 5 board with the setting in screens groove 7.
Referring to fig. 3, the cross-sections of the locking block 6 and the locking groove 7 located in the middle are both T-shaped, so that the locking block 6 is not easy to fall off from the side of the mounting member 3 away from the mounting plate 1. One side of screens piece 6 towards screens groove 7 all is provided with oblique chamfer 8 to have certain clearance transition when making screens piece 6 insert screens groove 7, thereby the staff of being further convenient for installs opening and closing board 5.
Referring to fig. 2 and 3, a PCB 9 is installed in the installation groove 4, the PCB 9 is preset with LED lamp bodies 10 corresponding to each row of the installation holes 2, so that the worker can apply force to move the installation member 3 to insert each LED lamp body 10 into each installation hole 2 and fix the installation member 3 and the installation plate body 1 by bonding or bolts to complete the installation of the LED lamp body 10. When the LED lamp body 10 is installed, a worker does not need to install each LED lamp into each mounting hole 2 in sequence, so that the worker can install the LED lamp body 10 quickly, simply and conveniently.
With continued reference to fig. 2 and 3, one side of the pcb 9 where the LED lamp bodies 10 are installed is further provided with positioning rings 11 corresponding to each row of the installation holes 2 one by one, each LED lamp body 10 is located in each positioning ring 11, the two connected positioning rings 11 are connected by two parallel connection rods 12, so that the worker can move each positioning ring 11 synchronously to the application of force, the positioning rings 11 play a role in positioning indication when installing each LED lamp body 10, and therefore the worker is not easy to touch the installation plate body 1 when installing each LED lamp body 10 to each installation hole 2 of the installation plate body 1, and further the installation quality of the LED lamp bodies 10 is ensured.
Referring to fig. 3, two opposite groove walls of the notch of the installation groove 4 close to the installation plate body 1 are provided with installation guide surfaces 13 in an inclined manner, so that the PCB board 9 has certain gap transition when being arranged in the installation groove 4, and the worker can install the PCB board 9 into the installation groove 4 conveniently. The locating ring 11, the connecting rod 12, the LED lamp body 10 and the PCB 9 are fixed in the mounting groove 4 through glue pouring, so that the fixing mode of all the parts in the mounting groove 4 is quick, simple and convenient, and the stability is strong.
Referring to fig. 2 and 4, a plurality of parallel limiting rods 14 with square cross sections are arranged on one side of the mounting member 3 away from the mounting plate body 1, the number of the limiting rods 14 is not limited, and three limiting rods 14 are selected in the embodiment of the present invention. Each gag lever post 14 all offers the spacing groove 15 that sets up with each installed part 3 position one-to-one towards one side of installed part 3, and spacing groove 15 extends to the both sides of gag lever post 14, and each installed part 3 joint cooperation respectively is in each spacing groove 15 to make staff's application of force remove gag lever post 14 and can remove each installed part 3 in step, thereby be favorable to further simple and convenient staff to carry out the operation installed to installed part 3.
With reference to fig. 2 and 4, in order to facilitate the working staff to perform wire arrangement on the connecting wires or the external circuits of the LED lamps, the limiting rod 14 is provided with a wire passing groove 16 perpendicular to the length direction of the limiting rod and penetrating the limiting rod, and the wire passing groove 16 is distributed along the length direction of the limiting rod 14 to form a plurality of connecting wires which are not easy to interfere, so that the working staff can overhaul and maintain the connecting wires. The limiting rod 14 is provided with a lightening hole 17 which penetrates through the limiting rod in the length direction, so that the structural strength of the limiting rod 14 is guaranteed, the weight of the limiting rod 14 is further reduced, and the limiting rod 14 is further convenient to move by force applied by workers.
Referring to fig. 4 and 5, two sets of connection assemblies are further installed on one side of the installation part 3 away from the installation plate body 1, the two sets of connection assemblies are respectively arranged near two ends of the installation part 3 in the length direction, and each connection assembly comprises a junction box 18, a connection wire 19 and a protection cover 20. The PCB board 9 is connected to a connecting wire 19 through a terminal box 18 so as to control the on/off of the LED lamp body 10 through an external circuit.
Referring to fig. 5, the protective cover 20 is fixedly connected with three sliding blocks 21 which are arranged corresponding to the positions of the clamping grooves 7 one by one, the sliding blocks 21 are in sliding fit with the clamping grooves 7, and when each sliding block 21 slides into each clamping groove 7, the protective cover 20 covers the connecting wire 19 and is abutted against the junction box 18, so as to protect the connecting wire 19. The end of the protective cover 20 remote from the terminal box 18 is provided with a wiring hole 22 for connecting the connection wire 19 with an external circuit. The shield 20 may be fixed to the mounting member 3 by bonding or bolts so that the shield 20 is stably fixed.
The implementation principle of this application embodiment 1 outdoor grid screen does: each LED lamp body 10 to be installed on the installation plate body 1 can be preset and installed on the PCB 9, each LED lamp body 10 preset and installed on the PCB 9 is correspondingly placed in each row of installation holes 2, the installation plate body 1 and the installation part 3 are fixed, installation of the LED lamp bodies 10 can be completed, and when the LED lamp bodies 10 are installed, workers do not need to install each LED lamp into each installation hole 2 in sequence, so that the workers can install the LED lamp bodies 10 quickly, conveniently and conveniently.
Example 2.
Referring to fig. 6, the difference between this embodiment and embodiment 1 lies in that, the three guide members 23 respectively corresponding to the three limiting rods 14 are fixedly connected to the limiting rods 14, when the mounting members 3 are installed in the limiting groove 15 in a clamping manner, the guide members 23 are respectively abutted against the three limiting rods 14, so as to perform the positioning and guiding function when the mounting members 3 are installed, thereby facilitating the worker to quickly install the mounting members 3 at the positions where the mounting members are fixedly clamped with the limiting rods 14, and ensuring the uniformity of the lengths of the mounting members 3 after being fixed.
Example 3.
Referring to fig. 7 and 8, the present embodiment is different from embodiment 1 in that a first magnet 24 is embedded in each group of protection covers 20 toward one end of each group of connection boxes 18, a second magnet 25 attracted to the first magnet 24 is embedded in each group of connection boxes 18 toward one side of each group of protection covers 20, and when the sliding blocks 21 of each group slide into the respective locking grooves 7, the protection covers 20 and the connection boxes 18 of each group are fixed by the attraction of the first magnet 24 and the second magnet 25. The fixed setting of magnet absorption makes the fixed operation between protection casing 20 and terminal box 18 quick simple and convenient, and the staff of being convenient for dismantles terminal box 18 to connecting wire 19 that covers 20 covers is overhauld and is maintained.
The implementation principle of the outdoor grille screen in embodiment 2 and embodiment 3 of the present application is the same as that in embodiment 1, and therefore, the description thereof is omitted here.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. An outdoor grille screen, its characterized in that: the LED lamp comprises a mounting plate body (1), wherein a plurality of rows of mounting holes (2) which are arranged in parallel are formed in the mounting plate body (1), the mounting plate body (1) is connected with a plurality of mounting pieces (3), the mounting pieces (3) are respectively arranged corresponding to the plurality of rows of mounting holes (2), a PCB (9) is mounted in each mounting piece (3), and LED lamp bodies (10) which are arranged corresponding to the mounting holes (2) in each row are mounted in advance on the PCB (9);
one side of the mounting piece (3) is provided with a mounting groove (4), the PCB (9) is mounted in the mounting groove (4), the PCB (9) is provided with positioning rings (11) which are arranged in one-to-one correspondence to each row of mounting holes (2), each LED lamp body (10) of the PCB (9) is respectively positioned in each positioning ring (11), and the positioning rings (11), the LED lamp bodies (10) and the PCB (9) are all fixed in the mounting groove (4) through glue pouring;
the mounting piece (3) penetrates through the mounting piece (4) along the length direction of the mounting piece (3), two sides of the mounting piece (3) in the length direction are respectively provided with an opening and closing plate (5), the opening and closing plates (5) are used for opening and closing a notch of the mounting piece (4) in the horizontal direction, the opening and closing plates (5) are fixedly connected with clamping blocks (6), and the mounting piece (3) is provided with clamping grooves (7) matched with the clamping blocks (6) in a clamping mode;
at least one limiting rod (14) is arranged on one side, away from the mounting plate body (1), of the mounting piece (3), limiting grooves (15) which correspond to the mounting pieces (3) in position one to one are formed in the limiting rods (14), and the mounting pieces (3) are respectively matched with the limiting grooves (15) in a clamping mode;
the limiting rod (14) is provided with a plurality of wire passing grooves (16) which penetrate through the limiting rod along the direction vertical to the length direction of the limiting rod.
2. An outdoor grille screen according to claim 1 wherein: and the mounting groove (4) is obliquely provided with a mounting guide surface (13) close to the notch of the mounting groove.
3. An outdoor grille panel as defined in claim 1 wherein: the limiting rod (14) is provided with a lightening hole (17) which penetrates through the limiting rod along the length direction of the limiting rod.
4. An outdoor grille panel as defined in claim 3 wherein: the equal fixedly connected with of installed part (3) corresponds guide (23) that sets up with gag lever post (14), each when installed part (3) joint in spacing groove (15), guide (23) are inconsistent with gag lever post (14).
5. An outdoor grille panel as defined in claim 1 wherein: junction box (18) are all installed to one side that installation plate body (1) was kept away from in installed part (3), connecting wire (19) are installed in junction box (18), protection casing (20) that cover connecting wire (19) and close are installed in installed part (3), wiring hole (22) have been seted up in protection casing (20).
6. An outdoor grille screen according to claim 5 wherein: the protection casing (20) fixedly connected with sliding block (21), sliding block (21) and screens groove (7) cooperation of sliding, when sliding block (21) slided in screens groove (7), protection casing (20) are fixed with terminal box (18) absorption through a pair of magnet that attracts mutually.
CN202110699751.7A 2021-06-23 2021-06-23 Outdoor grille screen Active CN113470544B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110699751.7A CN113470544B (en) 2021-06-23 2021-06-23 Outdoor grille screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110699751.7A CN113470544B (en) 2021-06-23 2021-06-23 Outdoor grille screen

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CN113470544A CN113470544A (en) 2021-10-01
CN113470544B true CN113470544B (en) 2023-02-14

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Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH1138905A (en) * 1997-07-18 1999-02-12 Stanley Electric Co Ltd Led display device
CN201803228U (en) * 2010-07-07 2011-04-20 杨东佐 LED integrated structure
CN109147590A (en) * 2018-11-16 2019-01-04 深圳市光祥科技股份有限公司 LED display
CN211149987U (en) * 2019-11-18 2020-07-31 深圳市艾伦森光电有限公司 Outdoor L ED grid screen
CN213479902U (en) * 2020-07-30 2021-06-18 宁波艾易迪照明有限公司 Ultra-narrow low-voltage line lamp with L-shaped end cover outgoing line

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Publication number Priority date Publication date Assignee Title
DE102012102015A1 (en) * 2012-03-09 2013-09-12 Selux Aktiengesellschaft Outdoor lamp for illumination of e.g. roadway, has elongated retainer plate arranged with set of resilient metal tongues, printed circuit board retained in its position inside housing, and tongues located between LEDs
CN102915681B (en) * 2012-09-29 2015-07-08 深圳市通普科技有限公司 Outdoor LED (Light-Emitting Diode) grid screen
CN202948669U (en) * 2012-11-30 2013-05-22 深圳市安普光光电科技有限公司 Light-emitting diode (LED) outdoor display screen module
CN204029302U (en) * 2014-08-04 2014-12-17 深圳市顾通科技有限公司 A kind of outdoor LED display screen
CN204005459U (en) * 2014-08-29 2014-12-10 深圳磊明科技有限公司 A kind of concealed line lamp
CN205535625U (en) * 2016-03-23 2016-08-31 深圳市奥蕾达科技有限公司 Buckle formula lamp strip mounting structure
CN209312362U (en) * 2018-10-11 2019-08-27 太龙智显科技(深圳)有限公司 Outdoor LED display screen mould group
CN213146177U (en) * 2020-11-04 2021-05-07 上海光瑞灯具制造有限公司 General portable line lamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1138905A (en) * 1997-07-18 1999-02-12 Stanley Electric Co Ltd Led display device
CN201803228U (en) * 2010-07-07 2011-04-20 杨东佐 LED integrated structure
CN109147590A (en) * 2018-11-16 2019-01-04 深圳市光祥科技股份有限公司 LED display
CN211149987U (en) * 2019-11-18 2020-07-31 深圳市艾伦森光电有限公司 Outdoor L ED grid screen
CN213479902U (en) * 2020-07-30 2021-06-18 宁波艾易迪照明有限公司 Ultra-narrow low-voltage line lamp with L-shaped end cover outgoing line

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