CN117823854A - Column type light source with polygonal section - Google Patents
Column type light source with polygonal section Download PDFInfo
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- CN117823854A CN117823854A CN202311860801.0A CN202311860801A CN117823854A CN 117823854 A CN117823854 A CN 117823854A CN 202311860801 A CN202311860801 A CN 202311860801A CN 117823854 A CN117823854 A CN 117823854A
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- light source
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- aluminum pipe
- led lamp
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 53
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims description 24
- 239000011324 bead Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011049 pearl Substances 0.000 abstract description 3
- 238000012824 chemical production Methods 0.000 abstract description 2
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- 238000006243 chemical reaction Methods 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
- 229910052753 mercury Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
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- 230000001699 photocatalysis Effects 0.000 description 2
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- 238000005660 chlorination reaction Methods 0.000 description 1
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- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention provides a column type light source with a polygonal cross section, and relates to the technical fields of LED chemistry experiments and chemical production. This column type light source with polygon cross-section, including cavity aluminum pipe, transparent protection tube and external control box, cavity aluminum pipe outer wall has a plurality of LED lamp plates through screw fixed mounting, and is a plurality of the preceding terminal surface of LED lamp plate is all fixed to be provided with a plurality of lamp pearls, the terminal surface is fixed to be provided with temperature detection element near the upper end before the LED lamp plate, cavity aluminum pipe outer wall is equipped with the installation cap by the fixed cover in upper end, the connecting tube groove has all been seted up to installation cap outer wall both sides, two connecting tube groove inside wall fixedly connected with long water pipe and short water pipe respectively. The column type light source with the polygonal cross section is reasonable and exquisite in structure, good in cooling effect, good in sealing performance and high in safety, is beneficial to being inserted into a photoreaction kettle, and is used as a built-in light source for photocatalytic reaction.
Description
Technical Field
The invention relates to the technical fields of LED chemistry experiments and chemical production, in particular to a column type light source with a polygonal cross section.
Background
Plate type irradiation, plate type irradiation and cambered surface type irradiation can be realized in the current market, uniform irradiation and high power are difficult to realize in the aspects of actual production, research and application, and the optical density is generally low. High density, high throughput and uniformity of irradiation are required based on market demands, particularly in chemical reaction vessels. At present, the implementation is mainly realized by means of a high-pressure mercury lamp, but the mercury lamp has high energy consumption, impure light waves, easy side reaction and secondary pollution and low safety. In the fields of emerging chemical industry such as chlorination and bromination reaction, photocatalytic synthesis and the like, mercury lamps are gradually replaced by LED lamps. The existing LED light source is difficult to directly enter the reaction liquid for uniform irradiation, and most of the LED light source is non-contact irradiation, so that a three-dimensional irradiation light source can be realized.
Through the light sources of the multiple groups and the polygonal column-shaped structure, higher power, higher flux and lower energy consumption can be realized, the reaction process is safer, more efficient, clean and environment-friendly, the reaction quantity, the liquid holdup and the duration are amplified, the requirements of various industries on uniform illumination are met, the service life of the LED can reach hundreds of thousands of hours, the light attenuation rate is low, the mercury lamp is only hundreds to thousands of hours, and the light attenuation is serious. Accordingly, a column light source having a polygonal cross section is provided by those skilled in the art to solve the problems set forth in the background art.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a column type light source with a polygonal cross section, which is reasonable and compact in structure, good in cooling effect, good in sealing performance and high in safety, is beneficial to being inserted into a photoreaction kettle to be used as a built-in light source for carrying out photocatalysis reaction, and aims to realize uniform irradiation and high power of light, improve luminous flux, optical density and safety of reaction, reduce energy consumption and realize no secondary pollution.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the column type light source with the polygonal section comprises a hollow aluminum pipe, a transparent protection pipe and an external control box, wherein a plurality of LED lamp panels are fixedly arranged on the outer wall of the hollow aluminum pipe through screws, a plurality of lamp beads are fixedly arranged on the front end surfaces of the LED lamp panels, and a temperature detection element is fixedly arranged on the front end surfaces of the LED lamp panels close to the upper end;
the utility model discloses a hollow aluminum pipe, including installation cap, connecting tube groove inside wall, connecting tube groove intercommunication groove, hollow aluminum pipe includes the cooling water tank, the reflux water tank has been seted up to the hollow aluminum pipe inside wall, the connecting tube groove both sides have all been seted up to the hollow aluminum pipe outside wall, connecting tube groove inside wall fixedly connected with long water pipe and short water pipe respectively, the intercommunication groove has all been seted up to terminal surface both sides under the installation cap and intercommunication with the connecting tube groove respectively, the reflux pipe is provided with between cooling water tank and the reflux water tank.
Through above-mentioned technical scheme, lighting device is by rectangular form LED lamp plate, be polygonal distribution along the circumferencial direction, wherein the polygon is favorable to plane direction to give out light, a plurality of LED lamp plate backs, paste on regular polygon's cavity aluminum pipe, its laminating gap passes through heat conduction silicone grease transfer heat, constitute the overall structure of light column jointly by LED lamp plate and cavity aluminum pipe, the LED lamp plate is closely laminated by metal substrate and cavity aluminum pipe, its one end is equipped with the electricity and constitutes, a plurality of lamp pearls are evenly arranged in its front, its back passes through heat conduction silicone grease, utmost point solder joint, its surface is equipped with temperature detection element, its LED lamp plate surface scribbles three proofings lacquer, the embedded temperature protection switch of cavity aluminum pipe, LED lamp plate also accessible end to end links to each other and realizes, threaded center is along an axial direction interface connection long water pipe in the T shape water pipe, the long water pipe of side along mirror image direction interface welding short pipe, the cavity aluminum pipe top is equipped with the external screw thread, with the internal thread connection of T shape water pipe can be inserted in the cavity, and seal through the screw thread realization aluminum pipe, the long water pipe of T shape water pipe's delivery port, the cooling water pipe top of cooling down, the cooling water pipe can be followed the cooling down from the cooling water pipe of external water pipe, the cooling down from the cooling water pipe of external cooling water pipe, the cooling pipe of cooling down pipe, the cooling water pipe of external water pipe and the cooling pipe.
Preferably, the outer wall of the transparent protection tube is sleeved with a mounting ring buckle, and a third sealing ring is arranged between the inner side wall of the mounting ring buckle and the outer wall of the transparent protection tube;
through above-mentioned technical scheme, can be convenient for seal between installation latch closure and the transparent protection tube through the third sealing washer.
Preferably, a second sealing groove is formed in the upper end face of the mounting ring buckle, and a second sealing ring is sleeved on the outer wall of the transparent protection tube close to the upper end of the transparent protection tube;
through above-mentioned technical scheme, can seal the upper portion of installation latch closure and the lower part junction of installation cap through second seal groove and second sealing washer.
Preferably, a first sealing groove is formed in the lower end face of the mounting cap, and a first sealing ring is sleeved on the upper end of the outer wall of the hollow aluminum pipe;
through above-mentioned technical scheme, can seal the junction of installation cap and cavity aluminum pipe through first seal groove and first sealing washer.
Preferably, a plurality of first threaded holes are formed in the upper end face of the mounting cap, and bolts are connected to the inner side walls of the first threaded holes in a threaded mode.
Preferably, the upper end surface of the mounting ring buckle is provided with a plurality of second threaded holes which are respectively matched with the bolts;
through above-mentioned technical scheme, can carry out screw thread fixed connection between installation latch closure and the installation cap through first screw hole, second screw hole and bolt.
Preferably, the upper end face of the mounting cap is provided with a through hole, and the upper end of the hollow aluminum pipe is fixedly provided with a sealing head;
through above-mentioned technical scheme, can seal the upper portion of hollow aluminum pipe through-hole and sealing head.
Preferably, a base sealing element is arranged at the lower end of the transparent protection tube;
through above-mentioned technical scheme, can seal the bottom of transparent protection tube through the base sealing member.
Working principle: when the column type light source with polygonal section is put into use, the light-emitting device is formed by strip-shaped LED lamp panels which are distributed in a polygonal shape along the circumferential direction, the polygons are favorable for emitting light in the plane direction, the back surfaces of a plurality of lamp panels are attached to hollow aluminum tubes of the regular polygons, bonding gaps of the lamp panels transfer heat through heat conduction silicone grease, the lamp panels and the hollow aluminum tubes jointly form an integral structure of a light column, one end of the structure is provided with a mounting seat component for mounting and fixing, the outer layer of the main structure is provided with a transparent protection tube, the top of the mounting seat is provided with a T-shaped interface, the LED lamp panels are specifically tightly bonded with the hollow aluminum tubes by a metal substrate, one end of the LED lamp panels is provided with electricity, the front surfaces of the LED lamp panels are uniformly provided with a plurality of LED lamp beads, the back surfaces of the LED lamp panels are provided with heat conduction silicone grease, the surfaces of the LED lamp panels are provided with temperature detection elements, the surfaces of the lamp panels are coated with three-proof paint, the lamp panels and the hollow aluminum tubes are locked by screws, the end of the hollow aluminum pipe is sealed by an internal thread and a plug, the upper half part of the hollow aluminum pipe is provided with a groove, an embedded temperature protection switch is arranged, the LED lamp panel can be connected end to end, the threaded center in the T-shaped water pipe is connected with a long water pipe in an interface mode along the axial direction, a short water pipe is welded beside the water pipe in the mirror image direction, the top end of the hollow aluminum pipe is provided with an external thread and is connected with the internal thread of the T-shaped water pipe, the long water pipe of the T-shaped water pipe can be inserted into the hollow aluminum pipe and sealed by the thread, the long water pipe of the T-shaped water pipe is externally connected with a water outlet of a cooling water pipe, the top end of the long water pipe is externally connected with an outlet of the cooling water pipe, cooling water can be LED into the end of a cavity of the hollow aluminum pipe along the long water pipe, and flows back from a slit between the outer wall of the long water pipe and the inner wall of the cavity, and finally flows out from the short pipe of the T-shaped water pipe.
(III) beneficial effects
The invention provides a column type light source with a polygonal cross section. The beneficial effects are as follows:
the invention provides a column type light source with polygonal section, which can realize IP68 safety protection and Exp2 BT4 explosion proof requirement, can realize overheat protection and temperature monitoring, has compact and exquisite structure, can realize high-density, high-flux and high-power illumination in a small size, can effectively conduct heat emitted by LEDs, realizes long-term reliable and stable operation, is assembled on a multi-angular water-cooled tube in a lamp strip mode, can ensure 360-degree dead-angle-free illumination, can ensure complete fitting of a lamp surface and the water-cooled tube, ensures conduction and heat dissipation, can also freely combine the scheme of the lamp strip, can realize single lamp column of 250 w-3000 w and even higher power, wherein the column type light source comprises an electric, gas, water, a mounting cap, a first sealing ring, a transparent tube with a skirt, a second sealing ring, a mounting collar, a third sealing ring and bolts to form a mounting seat assembly, the side direction mounting hole on the installation cap can be used for installing explosion-proof gram head, the centre can be equipped with the multicore explosion-proof cable and pass through, the positive and negative pole of cable welds to the LED lamp plate subassembly, be connected with the positive and negative poles of a plurality of lamp plates through the converging ring, the other end termination LED control system of cable, wherein the mounting hole is used for being furnished with the air duct, can lead into the cavity end of transparent protection tube with nitrogen gas through this port, and with the residual air discharge of the inside, realize filling nitrogen protection, control circuit links to each other with the temperature measurement original paper on the LED lamp plate, on the positive circuit of LED, establish ties a temperature protection switch, when the cooling effect is not good, can automatic cutout power, the damage that the overheated causes of protection LED lamp pearl, two control circuit are connected to the temperature measurement component of LED lamp plate, the other end links to each other with electrical system, but real-time supervision LED temperature, realize accurate accuse temperature.
Drawings
FIG. 1 is an isometric view of a column light source having a polygonal cross-section in accordance with the present invention;
FIG. 2 is a schematic view showing a partial structure of a column light source having a polygonal cross section according to the present invention;
FIG. 3 is a schematic view of a column-type light source mounting cap having a polygonal cross section according to the present invention;
FIG. 4 is a schematic view of a column-type light source mounting collar clip with polygonal cross section according to the present invention;
FIG. 5 is a schematic view of a connection structure of a third seal ring of a column light source with a polygonal cross section according to the present invention;
FIG. 6 is a schematic view of a pillar light source return water pipe with a polygonal cross section according to the present invention;
FIG. 7 is an enlarged view at A in FIG. 6;
fig. 8 is a schematic structural view of a column type light source external control box with polygonal cross section according to the present invention.
Wherein, 1, hollow aluminum tube; 2. a transparent protective tube; 3. a base seal; 4. installing a cap; 5. installing a ring buckle; 6. a sealing head; 7. a bolt; 8. a connecting pipe groove; 9. a long water pipe; 10. a short water pipe; 11. a first seal ring; 12. a second seal ring; 13. an LED lamp panel; 14. a lamp bead; 15. a temperature detecting element; 16. a first seal groove; 17. a through hole; 18. a communication groove; 19. a first threaded hole; 20. a second threaded hole; 21. a return pipe; 22. a second seal groove; 23. a third seal ring; 24. a cooling water tank; 25. a return water tank; 26. and an external control box.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
as shown in fig. 1-8, the embodiment of the invention provides a column type light source with a polygonal cross section, which comprises a hollow aluminum tube 1, a transparent protection tube 2 and an external control box 26, wherein the outer wall of the hollow aluminum tube 1 is fixedly provided with a plurality of LED lamp panels 13 through screws, the front end faces of the LED lamp panels 13 are fixedly provided with a plurality of beads 14, the front end faces of the LED lamp panels 13 are fixedly provided with temperature detection elements 15 near the upper ends, the light-emitting device is formed by strip-shaped LED lamp panels 13 and distributed in a polygonal shape along the circumferential direction, the polygonal shape is beneficial to emitting light in the planar direction, the back faces of the LED lamp panels 13 are attached to the hollow aluminum tube 1 with regular polygon, the attaching gaps transfer heat through heat conduction silicone grease, the LED lamp panels 13 and the hollow aluminum tube 1 form an integral structure of a light column together, the LED lamp panels 13 are tightly attached to the hollow aluminum tube 1 through heat conduction silicone grease, one end of the LED lamp panels 13 are provided with electricity, the front faces of the LED lamp panels are uniformly provided with a plurality of beads 14, the back faces of the LED lamp panels are provided with temperature detection elements 15 through silicone grease, the front faces of the LED lamp panels 13 are provided with temperature detection elements 15 near the upper ends, the front faces of the LED lamp panels 13 are coated with three-protection aluminum tubes, and the tail temperature protection switches of the LED lamp panels 13 are embedded in the hollow aluminum lamp panels through head-to tail connection, and tail connection can also be realized through head connection;
the outer wall of the hollow aluminum pipe 1 is fixedly sleeved with a mounting cap 4 near the upper end, connecting pipe grooves 8 are formed in two sides of the outer wall of the mounting cap 4, a long water pipe 9 and a short water pipe 10 are fixedly connected to the inner side walls of the two connecting pipe grooves 8 respectively, communicating grooves 18 are formed in two sides of the lower end face of the mounting cap 4 and are communicated with the connecting pipe grooves 8 respectively, the hollow aluminum pipe 1 comprises a cooling water tank 24, a backflow water tank 25 is formed in the inner side wall of the hollow aluminum pipe 1, a backflow pipe 21 is arranged between the cooling water tank 24 and the backflow water tank 25, a threaded center in the T-shaped water pipe is connected with the long water pipe 9 along an axial direction interface, a short water pipe 10 is welded to the side water pipe interface along the mirror image direction, external threads are formed in the top end of the hollow aluminum pipe 1 and are connected with internal threads of the T-shaped water pipe, the long water pipe 9 can be inserted into the hollow aluminum pipe 1 and sealed through the threads, the long water pipe 9 of the T-shaped water pipe is externally connected with a water outlet of the cooling water pipe through the external threads, the top end of the long water pipe 9 of the long water pipe is externally connected with the cooling water pipe, the outlet of the long water pipe 9 is externally connected with the cooling water pipe, the cooling water pipe is guided into the tail end of the hollow water pipe 1, and the cooling water flows out of the cooling water pipe through the cooling water pipe 24 along the cooling water pipe 24, and the backflow pipe 21.
The outer wall of the transparent protection tube 2 is sleeved with a mounting ring buckle 5, a third sealing ring 23 is arranged between the inner side wall of the mounting ring buckle 5 and the outer wall of the transparent protection tube 2, the mounting ring buckle 5 and the transparent protection tube 2 can be conveniently sealed through the third sealing ring 23, the upper end face of the mounting ring buckle 5 is provided with a second sealing groove 22, the outer wall of the transparent protection tube 2 is sleeved with a second sealing ring 12 near the upper end, the joint of the upper part of the mounting ring buckle 5 and the lower part of the mounting cap 4 can be sealed through the second sealing groove 22 and the second sealing ring 12, the lower end face of the mounting cap 4 is provided with a first sealing groove 16, the outer wall of the hollow aluminum tube 1 is sleeved with a first sealing ring 11 near the upper end, the joint of the mounting cap 4 and the hollow aluminum tube 1 can be sealed through the first sealing groove 16 and the first sealing ring 11, a plurality of first screw holes 19 have been seted up to installation cap 4 up end, a plurality of first screw holes 19 inside wall equal threaded connection has bolt 7, a plurality of second screw holes 20 have been seted up to installation latch 5 up end and cooperate with bolt 7 respectively, can carry out screw thread fixed connection between installation latch 5 and the installation cap 4 through first screw hole 19, second screw hole 20 and bolt 7, through-hole 17 has been seted up to installation cap 4 up end, hollow aluminum pipe 1 upper end is fixed to be provided with seal head 6, can seal the upper portion of hollow aluminum pipe 1 through-hole 17 and seal head 6, transparent protection pipe 2 lower extreme is provided with base seal 3, can seal the bottom of transparent protection pipe 2 through base seal 3.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a column type light source with polygon cross-section, includes cavity aluminum pipe (1), transparent protection tube (2) and external control box (26), its characterized in that: the outer wall of the hollow aluminum pipe (1) is fixedly provided with a plurality of LED lamp panels (13) through screws, the front end faces of the LED lamp panels (13) are fixedly provided with a plurality of lamp beads (14), and the front end faces of the LED lamp panels (13) are fixedly provided with temperature detection elements (15) close to the upper ends;
the utility model discloses a hollow aluminum pipe (1), including installation cap (4), connecting tube groove (8) have all been seted up to the fixed cover in upper end of cavity aluminum pipe (1) outer wall, two connecting tube groove (8) inside wall fixedly connected with long water pipe (9) and short water pipe (10) respectively, intercommunication groove (18) and intercommunication with connecting tube groove (8) respectively have all been seted up to terminal surface both sides under installation cap (4), hollow aluminum pipe (1) include cooling water tank (24), reflux water tank (25) have been seted up to cavity aluminum pipe (1) inside wall, be provided with back flow (21) between cooling water tank (24) and reflux water tank (25).
2. A column light source with polygonal cross section as claimed in claim 1, wherein: the transparent protection tube (2) outer wall cover is equipped with installation latch closure (5), be provided with third sealing washer (23) between installation latch closure (5) inside wall and transparent protection tube (2) outer wall.
3. A column light source with polygonal cross section as claimed in claim 1, wherein: the upper end face of the mounting ring buckle (5) is provided with a second sealing groove (22), and the outer wall of the transparent protection tube (2) is sleeved with a second sealing ring (12) close to the upper end.
4. A column light source with polygonal cross section as claimed in claim 1, wherein: the lower end face of the mounting cap (4) is provided with a first sealing groove (16), and a first sealing ring (11) is sleeved on the upper end of the outer wall of the hollow aluminum pipe (1).
5. A column light source with polygonal cross section as claimed in claim 1, wherein: a plurality of first threaded holes (19) are formed in the upper end face of the mounting cap (4), and bolts (7) are connected to the inner side walls of the first threaded holes (19) in a threaded mode.
6. A column light source with polygonal cross section as claimed in claim 2, characterized in that: the upper end face of the mounting ring buckle (5) is provided with a plurality of second threaded holes (20) and is respectively matched with the bolts (7).
7. A column light source with polygonal cross section as claimed in claim 1, wherein: through holes (17) are formed in the upper end face of the mounting cap (4), and sealing heads (6) are fixedly arranged at the upper ends of the hollow aluminum tubes (1).
8. A column light source with polygonal cross section as claimed in claim 1, wherein: the lower end of the transparent protection tube (2) is provided with a base sealing piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311860801.0A CN117823854A (en) | 2023-12-31 | 2023-12-31 | Column type light source with polygonal section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311860801.0A CN117823854A (en) | 2023-12-31 | 2023-12-31 | Column type light source with polygonal section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117823854A true CN117823854A (en) | 2024-04-05 |
Family
ID=90514844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311860801.0A Pending CN117823854A (en) | 2023-12-31 | 2023-12-31 | Column type light source with polygonal section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117823854A (en) |
-
2023
- 2023-12-31 CN CN202311860801.0A patent/CN117823854A/en active Pending
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