CN213542412U - COB light source cooling system - Google Patents

COB light source cooling system Download PDF

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Publication number
CN213542412U
CN213542412U CN202022844995.3U CN202022844995U CN213542412U CN 213542412 U CN213542412 U CN 213542412U CN 202022844995 U CN202022844995 U CN 202022844995U CN 213542412 U CN213542412 U CN 213542412U
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Prior art keywords
heat
heat conduction
radiating
pipe
substrate
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CN202022844995.3U
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Chinese (zh)
Inventor
黄荣丰
陈志曼
李鸿丰
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Guangzhou Yajiang Photoelectric Equipment Co Ltd
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Guangzhou Yajiang Photoelectric Equipment Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The utility model relates to the technical field of LED lamps and lanterns, and discloses a COB light source heat dissipation system, which comprises a heat radiator, wherein the heat radiator comprises a heat dissipation substrate and a plurality of cooling fins arranged on the back surface of the heat dissipation substrate; the front surface of the radiating substrate is provided with a plurality of first heat conducting pipe bodies which are arranged side by side in a seamless mode and extend along the length of the radiating substrate in the vertical direction; one end of each first heat conduction pipe body is connected with a second heat conduction pipe body extending into the plurality of radiating fins. The COB light source heat dissipation system provided by the utility model has a high-efficiency heat conduction function and high heat dissipation efficiency, and avoids influencing the luminous efficiency and the service life of the OLED lamp beads; simultaneously, can reduce the quantity setting of heat conduction body, can reach the heat transfer maximize equally, reduction in production cost.

Description

COB light source cooling system
Technical Field
The utility model relates to a LED lamps and lanterns technical field especially relates to a COB light source cooling system.
Background
OLED lamp pearl of current COB light source formula has the high characteristics of generating heat at the during operation, easily influences the luminous efficiency and the life-span of OLED lamp pearl. To this problem, OLED lamp pearl is through increasing the temperature that radiator and at least 7 copper pipes combine to reduce COB light source chip. But current OLED lamp pearl adopts radiator and 7 at least copper pipes to combine together and carries out radiating mode, and the radiating efficiency is low, and the radiating effect is poor, and is with high costs, still influences OLED lamp pearl luminous efficacy and life-span.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's problem, providing a COB light source cooling system with high-efficient heat-conduction function, heat dissipation efficient.
In order to achieve the above purpose, the utility model adopts the following scheme:
a COB light source heat dissipation system comprises a heat sink, wherein the heat sink comprises a heat dissipation substrate and a plurality of cooling fins arranged on the back surface of the heat dissipation substrate; the front surface of the radiating substrate is provided with a plurality of first heat conducting pipe bodies which are arranged side by side in a seamless mode and extend along the length of the radiating substrate in the vertical direction; one end of each first heat conduction pipe body is connected with a second heat conduction pipe body extending into the plurality of radiating fins.
Furthermore, a positioning groove is formed in the upper direction and the lower direction of the radiating substrate; the plurality of first heat conduction pipe bodies are seamlessly arranged in the positioning groove side by side; the heat dissipation substrate is provided with a pressing plate for pressing and fixing the first heat conduction pipe bodies.
Further, the first heat conduction pipe body is provided with a cutting surface which is horizontal to the front surface of the heat dissipation substrate.
Further, the number of the first heat conduction pipe bodies is 3.
Further, the first heat conduction pipe body is a copper pipe; the second heat conduction pipe body is a copper pipe; the heat dissipation substrate is an aluminum plate.
Furthermore, a plurality of radiating fins are arranged on the radiating substrate at intervals along the vertical direction of the radiating substrate; the radiating fins are perpendicular to the radiating substrate.
Furthermore, one end of the second heat conduction pipe body is connected with the upper end of the first heat conduction pipe body, and the other end of the second heat conduction pipe body penetrates through each heat dissipation fin and extends along the lower end of the heat dissipation substrate.
Further, the number of the first heat conduction pipe bodies is the same as that of the second heat conduction pipe bodies, and the second heat conduction pipe bodies comprise bent connecting pipe parts and extending pipe body parts; the plurality of extending pipe body parts penetrate through each radiating fin at intervals and extend along the lower end of the radiating substrate; each bent connecting pipe portion is connected between the corresponding first heat-conducting pipe body and the extending pipe body portion.
Furthermore, the COB light source cooling system also comprises an air guide device; the air guide device is arranged on the back surface of the radiating substrate; the radiating fins are located between the radiating substrate and the air guide device. The air guide device comprises a fixed frame, an air guide cylinder, a fan and a protective net; the fixing frame is connected with the radiating substrate; the radiating fins are positioned between the radiating substrate and the fixing frame; the fan is connected with the air guide cylinder and the fixed frame through screws; the air duct is positioned between the fixed frame and the fan; the protective net is arranged on the back of the fan; the fixed frame is provided with a ventilation opening communicated with the radiating fin, the air duct and the fan.
Further, the air duct comprises a cylinder, a positioning frame and a screw guide part; the positioning frame is connected with the cylinder body; the plurality of screw guide portions are uniformly distributed around the outer side of the cylindrical body; the screw penetrates through the fan, the positioning frame and the screw guide part to be connected with the fixing frame; the positioning frame is connected with one end of the cylinder; the positioning frame is square; the positioning frame is provided with a through hole communicated with the cylinder.
Compared with the prior art, the utility model has the advantages of as follows:
the utility model discloses a set up a plurality of heat conduction body seamlessly side by side together, form a heat conduction portion, concentrate near or contact with OLED lamp pearl through this heat conduction portion, the heat conduction portion can be fast with the light source heat in the light source region transmit to the fin in through the second heat conduction body and dispel the heat, reach the heat transfer maximize, have high-efficient heat conduction function, improved the radiating efficiency, avoid influencing luminous efficiency and the life of OLED lamp pearl; simultaneously, can reduce the quantity setting of heat conduction body, can reach the heat transfer maximize equally, reduction in production cost.
Drawings
The present application will be described in further detail with reference to the following drawings and detailed description.
Fig. 1 is the utility model discloses a COB light source cooling system's perspective view.
Fig. 2 is the utility model discloses a COB light source cooling system's three-dimensional decomposition schematic diagram.
The figure includes:
the heat radiator comprises a heat radiator 1, a heat radiation substrate 11, a heat radiation fin 12, a first heat conduction pipe body 2, a cut-off surface 21, a second heat conduction pipe body 3, a bent connecting pipe part 31, an extension pipe body part 32, a positioning groove 4, a pressing plate 5, an air guide device 6, a fixing frame 61, a ventilation opening 611, an air guide cylinder 62, a cylinder 621, a positioning frame 622, a screw guide part 623, a fan 63 and a protective net 64.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 2, a COB light source heat dissipation system includes a heat sink 1, where the heat sink 1 includes a heat dissipation substrate 11 and a plurality of heat dissipation fins 12 disposed on a back surface of the heat dissipation substrate 11; a plurality of first heat conduction pipe bodies 2 which are arranged side by side in a seamless mode and extend along the length of the heat dissipation substrate 11 in the vertical direction are arranged on the front face of the heat dissipation substrate 11; one end of each first heat conduction pipe body 2 is connected with a second heat conduction pipe body 3 which extends into the plurality of cooling fins 12. This COB light source cooling system mainly uses on COB light source formula's OLED lamp pearl, of course, also can use on other types of LED lamps and lanterns.
Because the COB light source type OLED lamp bead is small in heating area, the COB light source heat dissipation system is formed by arranging a plurality of heat conduction pipe bodies side by side in a seamless mode, the heat conduction part is close to or in contact with the OLED lamp bead in a centralized mode, the heat conduction part can quickly transfer light source heat of a light source area into the heat dissipation fins 12 through the second heat conduction pipe bodies 3 for heat dissipation, the heat transfer maximization is achieved, the COB light source type OLED lamp bead has a high-efficiency heat conduction function, the heat dissipation efficiency is improved, and the light emitting efficiency and the service life of the OLED lamp bead are prevented from being influenced; simultaneously, can reduce the quantity setting of heat conduction body, can reach the heat transfer maximize equally, reduction in production cost.
Wherein, the heat-dissipating substrate 11 is provided with a positioning groove 4 along the up-down direction; the plurality of first heat conduction pipe bodies 2 are seamlessly arranged in the positioning groove 4 side by side; the heat dissipation substrate 11 is provided with a pressing plate 5 for pressing and fixing the plurality of first heat conduction pipe bodies 2. The positioning grooves 4 are formed in the upper direction and the lower direction of the radiating base plate 11, so that the first heat conducting pipe bodies 2 which are arranged side by side in a seamless mode are well positioned, and meanwhile, local heat can be transmitted to the radiating fins 12 through the radiating base, and radiating efficiency is improved.
Preferably, the first heat conductive pipe body 2 has a cut-away surface 21 horizontal to the front surface of the heat dissipating substrate 11; according to the front of radiating basal plate 11, remove the material to first heat conduction body 2 and excise, form and radiating basal plate 11's front looks horizontally excision face 21, help the installation of COB light source formula OLED lamp pearl, and be convenient for seamless welding between two adjacent first heat conduction bodies 2, so that a plurality of first heat conduction bodies 2 set a heat conduction portion side by side, simultaneously, improve the holistic roughness of COB light source cooling system, it is more pleasing to the eye. The sum of the outer diameters of the first heat conduction pipe bodies 2 is equal to the width of the left side and the right side of the positioning groove 4, and the positioning of the first heat conduction pipe bodies 2 in the positioning groove 4 is facilitated.
In this embodiment, the first heat conducting pipe 2 is a copper pipe; the second heat conduction pipe body 3 is a copper pipe; the heat dissipation substrate 11 is an aluminum plate. Copper has a higher heat transfer efficiency than aluminum, but is more costly. Through with first heat conduction body 2, second heat conduction body 3 adopts the copper pipe, help concentrating and carry out the heat transfer to the heat of COB light source formula's OLED lamp pearl (like the OLED lamp pearl of 400wCOB light source formula) heat area fast, make the temperature around this COB light source formula's OLED lamp pearl maintain below 70 ℃, the radiating efficiency has been improved, avoid influencing luminous efficiency and the life of OLED lamp pearl, adopt aluminum plate with radiating basal plate 11 simultaneously, different with the material that first heat conduction body 2 and second heat conduction body 3 adopted, help reducing the holistic manufacturing cost of this COB light source cooling system.
In this embodiment, the number of the first heat conduction pipe bodies 2 is 3. Through setting up 3 first heat conduction body 2 seamless side by side together, form a heat conduction portion, the light source region's that the heat conduction portion can be fast with the light source heat dispels the heat in transferring to fin 12 through second heat conduction body 3, reach the heat transfer maximize, have high-efficient heat-conduction function, simultaneously, can reduce the quantity setting of heat conduction body, reduction in production cost. Of course, the number of the first heat conducting pipe bodies 2 can be increased correspondingly in consideration of other types of LED lamps, such as 5, 6, 7, etc.
In the present embodiment, a plurality of the heat dissipation fins 12 are provided on the heat dissipation substrate 11 at intervals in the vertical direction of the heat dissipation substrate 11; namely, a left and right spaced heat dissipation channel is formed between two adjacent heat dissipation fins 12, and the heat dissipation fins 12 are perpendicular to the heat dissipation substrate 11. Through set up polylith fin 12 on heat dissipation substrate 11, help improving the radiating efficiency, make this COB light source cooling system have high-efficient heat-conduction function. The heat sink 12 is perpendicular to the heat dissipating substrate 11, which facilitates positioning and mounting between the heat sink 12 and the heat dissipating substrate 11. Of course, the heat sink 12 and the heat sink base plate 11 may be disposed obliquely.
One end of the second heat conduction pipe 3 is connected to the upper end of the first heat conduction pipe 2, and the other end of the second heat conduction pipe passes through each of the heat dissipation fins 12 and extends along the lower end of the heat dissipation substrate 11. Specifically, set up on fin 12 with second heat conduction body 3's periphery wall matched with through-hole, through passing second heat conduction body 3 fin 12 passes the through-hole that sets up on fin 12 promptly, makes and contacts between fin 12 and the second heat conduction body 3, helps heat transfer between fin 12 and the second heat conduction body 3, improves the radiating efficiency, makes this COB light source cooling system have high-efficient heat-conduction function.
Specifically, the number of the first heat conduction pipe bodies 2 is the same as that of the second heat conduction pipe bodies 3, and the second heat conduction pipe bodies 3 include bent connection pipe portions 31 and extended pipe portions 32; a plurality of extending tube body parts 32 are arranged at intervals and extend along the lower end of the heat radiating substrate 11 through each heat radiating fin 12; specifically, each of the extension tube body portions 32 is parallel to the corresponding first heat conduction tube body 2 at an interval; each of the bent connecting tube portions 31 is connected between the corresponding first heat conductive pipe body 2 and the extension pipe body portion 32. The plurality of extending tube body parts 32 are arranged to penetrate through each radiating fin 12 at intervals and extend along the lower end of the radiating substrate 11, so that heat can be dispersed and transferred to each part of the radiating fin 12, and the radiating efficiency is improved.
In this specific embodiment, the COB light source heat dissipation system further includes an air guiding device 6; the air guide device 6 is arranged on the back surface of the heat dissipation substrate 11; the heat sink 12 is located between the heat dissipating substrate 11 and the air guiding device 6. By additionally arranging the air guide device 6 behind the radiating fins 12, natural wind can be guided into the radiating fins 12, so that an air path is increased, heat transmitted by the second heat conduction pipe 3 is quickly radiated outwards through the radiating fins 12, and the radiating efficiency of the COB light source radiating system is improved.
The air guide device 6 comprises a fixed frame 61, an air guide duct 62, a fan 63 and a protective net 64; the fixing frame 61 is connected with the heat dissipation substrate 11; the heat sink 12 is located between the heat dissipation substrate 11 and the fixing frame 61; the fan 63 is connected with the air duct 62 and the fixed frame 61 through screws; the air duct 62 is positioned between the fixed frame 61 and the fan 63; the protective net 64 is arranged on the back of the fan 63; the fixed frame 61 is provided with a ventilation opening 611 communicated with the radiating fin 12, the air duct 62 and the fan 63. The fixing frame 61 is connected to the heat dissipation substrate 11, so that the air duct 62, the fan 63 and the protective net 64 are conveniently positioned and installed, the fan 63 is started, natural air passes through the air duct 62 to form a high-pressure narrowed air path, the air passes through the ventilation opening 611 and just covers the heat dissipation fins 12 and the second heat conduction pipe, heat transferred from the second heat conduction pipe 3 passes through the heat dissipation fins 12 to be quickly radiated outwards, and the heat dissipation efficiency of the COB light source heat dissipation system is improved.
The air duct 62 comprises a cylinder 621, a positioning frame 622 and a screw guide portion 623; the positioning frame 622 is connected with the cylinder 621; by arranging the cylinder 621, it is helpful to form a high-pressure and narrow air path, and the air passes through the ventilation opening 611 and just covers the positions of the heat dissipation fins 12 and the second heat conduction pipe, so that the heat transferred from the second heat conduction pipe 3 passes through the heat dissipation fins 12 and is radiated outwards quickly, and the heat dissipation efficiency of the COB light source heat dissipation system is improved. The plurality of screw guides 623 are uniformly distributed around the outside of the cylindrical body 621; the screws penetrate through the fan 63, the positioning frame 622 and the screw guide portion 623 and are connected with the fixing frame 61, and the screw fixing device is simple in structure and convenient to assemble and disassemble. The positioning frame 622 is connected with one end of the cylinder 621; the positioning frame 622 is square; the positioning frame 622 has a through hole communicating with the cylinder 621.
To sum up, the embodiment of the present invention provides a COB light source heat dissipation system, wherein the COB light source heat dissipation system forms a heat conduction part by seamlessly arranging a plurality of heat conduction pipe bodies side by side, and the heat conduction part and the OLED lamp bead are centrally close to or in contact with each other, so that the heat conduction part can quickly transfer the light source heat of the light source region into the heat dissipation plate 12 through the second heat conduction pipe body 3 for heat dissipation, thereby maximizing the heat transfer, having a high-efficiency heat conduction function, improving the heat dissipation efficiency, and avoiding affecting the light emitting efficiency and the service life of the OLED lamp bead; simultaneously, can reduce the quantity setting of heat conduction body, can reach the heat transfer maximize equally, reduction in production cost.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.

Claims (10)

1. The utility model provides a COB light source cooling system, includes the radiator, its characterized in that: the radiator comprises a radiating substrate and a plurality of radiating fins arranged on the back surface of the radiating substrate; the front surface of the radiating substrate is provided with a plurality of first heat conducting pipe bodies which are arranged side by side in a seamless mode and extend along the length of the radiating substrate in the vertical direction; one end of each first heat conduction pipe body is connected with a second heat conduction pipe body extending into the plurality of radiating fins.
2. The COB light source cooling system of claim 1, characterized in that: the heat dissipation substrate is provided with positioning grooves along the upper and lower directions; the plurality of first heat conduction pipe bodies are seamlessly arranged in the positioning groove side by side; the heat dissipation substrate is provided with a pressing plate for pressing and fixing the first heat conduction pipe bodies.
3. The COB light source cooling system of claim 2, characterized in that: the first heat conduction pipe body is provided with a cutting surface which is horizontal to the front surface of the heat dissipation substrate.
4. The COB light source cooling system of claim 2, characterized in that: the quantity of first heat conduction body is 3.
5. The COB light source cooling system of claim 1, characterized in that: the first heat conduction pipe body is a copper pipe; the second heat conduction pipe body is a copper pipe; the heat dissipation substrate is an aluminum plate.
6. The COB light source cooling system of claim 1, characterized in that: the radiating fins are arranged on the radiating substrate at intervals along the vertical direction of the radiating substrate; the radiating fins are perpendicular to the radiating substrate.
7. The COB light source cooling system of claim 1, characterized in that: one end of the second heat conduction pipe body is connected with the upper end of the first heat conduction pipe body, and the other end of the second heat conduction pipe body penetrates through each heat dissipation fin and extends along the lower end of the heat dissipation substrate.
8. The COB light source cooling system of claim 1, characterized in that: the first heat conduction pipe bodies and the second heat conduction pipe bodies are the same in number, and each second heat conduction pipe body comprises a bent connection pipe part and an extension pipe body part; the plurality of extending pipe body parts penetrate through each radiating fin at intervals and extend along the lower end of the radiating substrate; each bent connecting pipe portion is connected between the corresponding first heat-conducting pipe body and the extending pipe body portion.
9. The COB light source cooling system of claim 1, characterized in that: the COB light source heat dissipation system further comprises an air guide device; the air guide device is arranged on the back surface of the radiating substrate; the radiating fins are positioned between the radiating substrate and the air guide device; the air guide device comprises a fixed frame, an air guide cylinder, a fan and a protective net; the fixing frame is connected with the radiating substrate; the radiating fins are positioned between the radiating substrate and the fixing frame; the fan is connected with the air guide cylinder and the fixed frame through screws; the air duct is positioned between the fixed frame and the fan; the protective net is arranged on the back of the fan; the fixed frame is provided with a ventilation opening communicated with the radiating fin, the air duct and the fan.
10. The COB light source cooling system of claim 9, characterized in that: the air guide cylinder comprises a cylinder body, a positioning frame and a screw guide part; the positioning frame is connected with the cylinder body; the plurality of screw guide portions are uniformly distributed around the outer side of the cylindrical body; the screw penetrates through the fan, the positioning frame and the screw guide part to be connected with the fixing frame; the positioning frame is connected with one end of the cylinder; the positioning frame is square; the positioning frame is provided with a through hole communicated with the cylinder.
CN202022844995.3U 2020-12-01 2020-12-01 COB light source cooling system Active CN213542412U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022844995.3U CN213542412U (en) 2020-12-01 2020-12-01 COB light source cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022844995.3U CN213542412U (en) 2020-12-01 2020-12-01 COB light source cooling system

Publications (1)

Publication Number Publication Date
CN213542412U true CN213542412U (en) 2021-06-25

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Application Number Title Priority Date Filing Date
CN202022844995.3U Active CN213542412U (en) 2020-12-01 2020-12-01 COB light source cooling system

Country Status (1)

Country Link
CN (1) CN213542412U (en)

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