CN116146955A - Lamp heat dissipation device - Google Patents

Lamp heat dissipation device Download PDF

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Publication number
CN116146955A
CN116146955A CN202310232962.9A CN202310232962A CN116146955A CN 116146955 A CN116146955 A CN 116146955A CN 202310232962 A CN202310232962 A CN 202310232962A CN 116146955 A CN116146955 A CN 116146955A
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CN
China
Prior art keywords
mounting
heat dissipation
mounting base
radiating
fins
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310232962.9A
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Chinese (zh)
Inventor
刘中定
肖小剑
舒海霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Hg Lighting Co ltd
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Shenzhen Hg Lighting Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Hg Lighting Co ltd filed Critical Shenzhen Hg Lighting Co ltd
Priority to CN202310232962.9A priority Critical patent/CN116146955A/en
Publication of CN116146955A publication Critical patent/CN116146955A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/03—Gas-tight or water-tight arrangements with provision for venting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The application belongs to the technical field of radiators, and discloses a lamp radiating device, which comprises a mounting base for mounting an LED module, wherein a plurality of first radiating fins are arranged on the end face of the mounting base far away from the LED module, and the plurality of first radiating fins are uniformly arranged in an annular array along the center of the mounting base; and a first heat dissipation channel for heat dissipation is formed between the adjacent first heat dissipation fins, and the width of the first heat dissipation channel close to the center side of the mounting base is smaller than the width of the first heat dissipation channel close to the edge side of the mounting base. This application is through improving the area of air velocity of flow and heat abstractor to reach and take away the heat fast, realize the effect that radiating efficiency improves.

Description

Lamp heat dissipation device
Technical Field
The application belongs to the technical field of radiators and relates to a lamp radiating device.
Background
LED (Light Emitting Diode) is a solid-state semiconductor device capable of converting electrical energy into visible light, which can directly convert electricity into light. With further maturation of the LED technology, the LED will get more and better development in the field of design and development of lighting fixtures in rooms. In the use of high power LED fixtures, heat dissipation is a big problem. If the heat dissipation of the LED lamp is poor, the LED can be directly aged, the stability is reduced, and meanwhile, serious light attenuation can be generated when the heat dissipation is poor, so that the service life of the LED is influenced.
There are three ways to dissipate heat, conduction, convection and radiation, for LEDs. In the related technical means, through setting up the fan subassembly of block on the base for the wind of fan is directed and is strengthened the radiating effect, perhaps sets up the fin on the base, and the fin is provided with a plurality of bifurcation in order to increase the radiating area and carries out the heat dissipation treatment.
In the related art, there is a disadvantage in that the heat dissipation efficiency is low.
Disclosure of Invention
In order to overcome the defect of low heat dissipation efficiency of an LED in the prior art, the application provides a lamp heat dissipation device.
The application provides a lamps and lanterns heat abstractor adopts following technical scheme:
the lamp radiating device comprises a mounting base for mounting an LED module, wherein a plurality of first radiating fins are arranged on the end face, far away from the LED module, of the mounting base, and the plurality of first radiating fins are uniformly arranged in an annular array along the center of the mounting base; and a first heat dissipation channel for heat dissipation is formed between the adjacent first heat dissipation fins, and the width of the first heat dissipation channel close to the center side of the mounting base is smaller than the width of the first heat dissipation channel close to the edge side of the mounting base.
By adopting the technical scheme, the plurality of first radiating fins form a plurality of first radiating channels for air convection, the width of the channels close to the edge of the mounting base is larger, and external air is conveniently introduced into the first radiating channels; in the process that the air flows along the first heat dissipation channel, the width of the first heat dissipation channel gradually narrows from the edge to the center, the air flow is quickened, heat generated during the working of the LED can be taken away rapidly, the heat near the center of the mounting base is the most, the channel width of the first heat dissipation channel at the position is also the least, the corresponding air flow velocity at the position is the greatest, heat can be taken away rapidly, heat dissipation is carried out through the convection of the air, and therefore the air flow of the heat dissipation device is guaranteed to take away heat rapidly, and the heat dissipation efficiency is improved.
Optionally, the plurality of first heat dissipation fins are curved fins bending towards one side, and bending directions of the plurality of first heat dissipation fins are the same.
By adopting the technical scheme, the surface area of the first radiating fin increases the contact area between the mounting base and the air, so that the heat generated by the LED is transferred to the air through the first radiating fin; the surface area of the first radiating fin is further increased through the arrangement of the curved surface, and radiating efficiency is improved.
Optionally, the first radiating fin is provided with a plurality of first mounting columns for fixing the LED lamp module, and one ends of the first mounting columns are fixedly connected with the mounting base; the first mounting column is provided with a first mounting groove for bolt fit, and the column body of the first mounting column is located at the midpoint of the first radiating fin and fixedly connected with the first radiating fin.
Through adopting above-mentioned technical scheme, thereby the bolt wears to establish first mounting groove and installs the LED lamp module in the installation base, and the cylinder of first erection column is located first radiating fin midpoint department, has strengthened first radiating fin's intensity and installation stability.
Optionally, every two first radiating fins are a set of, are provided with the second radiating fin that is used for reinforcing radiating effect between the adjacent first radiating fin in every group, a plurality of second radiating fins with the equal fixed connection of installation base, the second radiating fin is the curved surface fin that is crooked towards one side just the bending direction of second radiating fin with the bending direction of first radiating fin keeps unanimous.
By adopting the technical scheme, on one hand, the second radiating fins increase the contact area between the mounting base and the air; on the other hand, the second radiating fins divide the first radiating channels in each group into two parts, air enters the first radiating channels along two sides of the second radiating fins respectively, gaps of the first radiating channels divided into two parts are reduced, and in the flowing process of the air, the channel width is further narrowed, so that the air flows fast, heat is taken away rapidly, and therefore the radiating efficiency is further enhanced.
Optionally, the heat dissipation device further comprises an outer cover, wherein one end of the second heat dissipation fin, which is far away from the center of the installation base, is fixedly connected with the outer cover, and the outer cover is positioned at the periphery of the installation base and is coaxial with the installation base; the second heat dissipation channel is arranged between the outer cover and the mounting base, and the first heat dissipation channel is communicated with the second heat dissipation channel.
By adopting the technical scheme, the outer cover is covered on the periphery of the bottom of the mounting seat to play a certain role in shielding and protecting the LED module, so that the damage of environmental factors to the LED module is reduced when the LED module is used outdoors, and the service life of the LED module is prolonged; on the other hand, heat generated by the operation of the LED can be carried by air flow and can be radiated towards the end face of the ground, and meanwhile, the heat can be radiated from the upper part of the first radiating channel through the second radiating channel, so that the damage of the heat to the LED is reduced.
Optionally, a third radiating fin for enhancing a radiating effect is arranged between each adjacent group of first radiating fins, a plurality of third radiating fins are fixedly connected with the mounting base, the third radiating fins are curved surface fins which are bent towards one side, the bending direction of the third radiating fins is consistent with that of the first radiating fins, and one end, away from the center of the mounting base, of the third radiating fins is fixedly connected with the outer cover.
By adopting the technical scheme, on one hand, the third radiating fins increase the contact area between the mounting base and the air; on the other hand, the third radiating fins divide the first radiating channels between every two adjacent groups of the first radiating fins into two parts, air enters the first radiating channels along two sides of the third radiating fins respectively, gaps of the first radiating channels divided into two parts are reduced, and in the flowing process of the air, the air flows faster due to the fact that the channel width is further narrowed, heat is taken away quickly, and therefore radiating efficiency is further improved.
Optionally, the ceiling lamp further comprises a mounting bracket connected with the ceiling; the mounting base is provided with a plurality of second erection columns, the one end of second erection column with mounting base fixed connection, the second erection column is provided with the second mounting groove that is used for bolt fit, the second erection column with the installing support can dismantle and be connected.
Through adopting above-mentioned technical scheme, the installing support is installed in the ceiling, and the bolt wears to establish the second mounting groove and can pass through the second erection column with the installation base and install on the installing support, reinforcing installation base's installation stability is convenient for simultaneously to holistic change and the maintenance of heat abstractor.
Optionally, the mounting base is provided with a third mounting column for mounting the power line, and the third mounting column is provided with a through hole; the third mounting columns are provided with a plurality of third mounting columns which are uniformly arranged in an annular array along the center of the mounting base.
By adopting the technical scheme, the power line passes through the through hole and is electrically connected with an external power supply, and the third mounting column protects the power line on one hand and reduces the damage caused by friction between the power line and the mounting base; on the other hand, the winding of the power supply line is reduced.
Optionally, the installation base is provided with mounting hole and respirator, the respirator is located in the mounting hole, the mounting hole inner wall is provided with the flange that is used for with the respirator joint, the terminal surface and the respirator contact of LED lamp module are kept away from to the flange.
Through adopting above-mentioned technical scheme, when LED during operation, most electric energy converts heat energy, and the inside temperature of dustcoat rises gradually, leads to the internal atmospheric pressure of dustcoat to rise, forms great pressure to the internal wall of dustcoat cavity. When the lamp is turned off, a certain negative pressure is formed in the cavity of the outer cover, the internal and external pressure difference can damage sealing parts of the lamp, the respirator keeps pressure balance of the inner side and the outer side of the outer cover through continuous ventilation, meanwhile, the LED lamp can be waterproof and dustproof, the LED can be effectively protected from negative influence of pressure difference caused by temperature change on the shell, and the service life of the LED lamp is prolonged.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the plurality of first radiating fins form a plurality of first radiating channels for air convection, the width of the channels close to the edge of the mounting base is large, and external air is conveniently introduced into the first radiating channels; in the process of air flowing along the first heat dissipation channel, the width of the first heat dissipation channel gradually narrows from the edge to the center, so that the air flow is quickened, and heat generated during the working of the LED can be rapidly taken away.
2. The surface areas of the first radiating fins, the second radiating fins and the third radiating fins are used for increasing the contact area between the mounting base and the air, so that heat generated by the LEDs is transferred to the air through the radiating fins.
3. When the LED works, most of electric energy is converted into heat energy, the temperature inside the outer cover gradually rises, so that the air pressure inside the outer cover rises, and larger pressure is formed on the inner wall of the cavity of the outer cover. When the lamp is turned off, a certain negative pressure is formed in the cavity of the outer cover, the internal and external pressure difference can damage sealing parts of the lamp, the respirator keeps pressure balance at the inner side and the outer side of the shell through continuous ventilation, meanwhile, the LED lamp can be waterproof and dustproof, the outer cover can be effectively protected from negative influences on the shell caused by pressure difference due to temperature change, and the service life of the LED lamp is prolonged.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a heat dissipation device of a lamp in the present application.
Fig. 2 is a schematic structural diagram of a heat dissipation device for a lamp according to another view angle of the present application.
Reference numerals illustrate:
1. a mounting base; 11. a first heat radiating fin; 12. a first heat dissipation channel; 13. a first mounting post; 131. a first mounting groove; 14. a second heat radiating fin; 15. a third heat radiating fin; 16. a mounting hole; 161. a flange; 17. a respirator; 18. a second mounting post; 181. a second mounting groove; 19. a third mounting post; 191. a through hole; 2. an outer cover; 3. and a second heat dissipation channel.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a lamp heat dissipation device.
Referring to fig. 1, a lamp heat sink includes a mounting base 1 for mounting an LED module, a housing 2, and a mounting bracket for mounting the mounting base 1 on a ceiling. The dustcoat 2 is located the installation base 1 periphery and dustcoat 2 and installation base 1 fixed connection, and the axis of dustcoat 2 and the axis coincidence of installation base 1, the installing support can dismantle with installation base 1 and be connected. In this embodiment, the outer cover 2 is annular, the diameter of the inner ring of the outer cover 2 is larger than that of the mounting base 1, the mounting base 1 is located between the highest end and the bottommost end of the outer cover 2, and the downward end face of the mounting base 1 is provided with the LED module. The mounting base 1 and the housing in the embodiment are made of aluminum or aluminum alloy, so that the weight is light, the heat conduction effect is good, and the die casting process is adopted for molding, so that the production process of the product is simpler.
Referring to fig. 2, the mounting base 1 is in a disc shape, the end surface of the mounting base 1 far away from the LED module is provided with a plurality of first heat dissipation fins 11, and the plurality of first heat dissipation fins 11 are uniformly arranged in an annular array along the center of the mounting base 1; first heat dissipation channels 12 for dissipating heat are formed between adjacent first heat dissipation fins 11, and the width of the first heat dissipation channels 12 near the center side of the mounting base 1 is smaller than the width near the edge side of the mounting base 1. A second heat dissipation channel 3 is arranged between the outer cover 2 and the mounting base 1, and the first heat dissipation channel 12 is communicated with the second heat dissipation channel 3. The heat generated by the LED work can be carried by the air flow and can be radiated towards the end face of the ground, and meanwhile, the heat can be radiated from the upper side of the first radiating channel 12 through the second radiating channel 3, so that the damage of the heat to the LED is reduced.
In this embodiment, the first heat dissipation fins 11 are made of aluminum or aluminum alloy, the plurality of first heat dissipation fins 11 are curved fins that are curved towards one side, the bending directions of the plurality of first heat dissipation fins 11 are the same, and the first heat dissipation fins 11 are curved along the anticlockwise direction; in further embodiments, the first heat radiating fins 11 may be curved in a clockwise direction. On the one hand, the surface area of the first radiating fin 11 increases the contact area between the mounting base 1 and the air, so that the heat generated by the LEDs is transferred to the air through the first radiating fin 11; on the other hand, the plurality of first heat dissipation fins 11 form a plurality of first heat dissipation channels 12 for air convection with each other, and the width of the channels close to the edge of the mounting base 1 is larger, so that external air can be conveniently introduced into the first heat dissipation channels 12; in the process of air flowing along the first heat dissipation channel 12, the width of the first heat dissipation channel 12 gradually narrows from the edge to the center, so that the air flow is quickened, heat generated during the working of the LED can be taken away rapidly, the heat near the center of the mounting base 1 is the most, the channel width of the first heat dissipation channel 12 at the position is the smallest, the air flow velocity at the corresponding position is the largest, heat can be taken away rapidly, heat dissipation is carried out through the convection of the air, and therefore the air flow of the heat dissipation device is guaranteed to take away heat rapidly, and the heat dissipation efficiency is improved.
Referring to fig. 1 and 2, further, the first heat dissipation fin 11 is provided with a plurality of first mounting posts 13 for fixing the LED lamp module, one end of the first mounting post 13 is fixedly connected with the mounting base 1, and a post of the first mounting post 13 is located at a midpoint of the first heat dissipation fin 11 and is fixedly connected with the first heat dissipation fin 11. In the present embodiment, the number of the first mounting posts 13 is the same as the number of the first heat dissipation fins 11, and the first heat dissipation fins 11 and the first mounting posts 13 are integrally formed. The first mounting column 13 is provided with a first mounting groove 131 for bolt fit, and the bolt penetrates through the first mounting groove 131 to mount the LED lamp module on the mounting base 1, and the column body of the first mounting column 13 is located at the midpoint of the first radiating fin 11, so that the strength and the mounting stability of the first radiating fin 11 are enhanced.
Referring to fig. 2, every two first heat dissipation fins 11 are a group, a second heat dissipation fin 14 for enhancing heat dissipation effect is arranged between adjacent first heat dissipation fins 11 in each group, a plurality of second heat dissipation fins 14 are fixedly connected with the mounting base 1, and one end of each second heat dissipation fin 14 far away from the center of the mounting base 1 is fixedly connected with the outer cover 2. The second heat dissipation fins 14 are curved fins curved toward one side, and the bending direction of the second heat dissipation fins 14 is consistent with the bending direction of the first heat dissipation fins 11. And a third radiating fin 15 for enhancing the radiating effect is arranged between each adjacent group of first radiating fins 11, a plurality of third radiating fins 15 are fixedly connected with the mounting base 1, the third radiating fins 15 are curved fins which are bent towards one side, the bending direction of the third radiating fins 15 is consistent with that of the first radiating fins 11, and one end, away from the center of the mounting base 1, of each third radiating fin 15 is fixedly connected with the outer cover 2. The arrangement of the second radiating fins 14 and the third radiating fins 15 increases the contact area between the mounting base 1 and the air on the one hand; on the other hand, each first heat dissipation channel 12 is divided into a left part and a right part, air flows along the gaps between the first heat dissipation fins 11 and the second heat dissipation fins 14 or between the first heat dissipation fins 11 and the third heat dissipation fins 15, and the channel width is further narrowed, so that the air flow is quickened, and heat is taken away quickly, so that the heat dissipation efficiency is further enhanced.
In the present embodiment, the third heat radiation fins 15 are located at a greater distance from the center of the mounting base 1 than the second heat radiation fins 14 are located at a greater distance from the center of the mounting base 1 than the first heat radiation fins 11 are located at a greater distance from the center of the mounting base 1 than the second heat radiation fins 14 are. The first erection columns 13 are arranged at one ends, close to the installation base 1, of the second radiating fins 14 and the third radiating fins 15, a plurality of first erection columns 13 located on the second radiating fins 14 are arranged in an annular array, a plurality of first erection columns 13 located on the third radiating fins 15 are also arranged in an annular array, and the installation stability of the LED module is enhanced by the first erection columns 13 located on the installation base 1.
The mounting base 1 is provided with a plurality of second mounting posts 18 connected to the mounting brackets and third mounting posts 19 for mounting the power cord. In the present embodiment, the second mounting posts 18 and the third mounting posts 19 are provided in four, and the second mounting posts 18 and the third mounting posts 19 are located on the mounting base 1 and are provided in central symmetry. One end of the second mounting column 18 is fixedly connected with the mounting base 1, the second mounting column 18 is provided with a second mounting groove 181 for bolt matching, the second mounting groove 181 can be used for mounting the mounting base 1 on a mounting bracket through the second mounting column 18 by penetrating through bolts, the second mounting column 18 is detachably connected with the mounting bracket, and the whole heat dissipation device can be conveniently replaced and maintained. The power line passes through the through hole 191 and is electrically connected with an external power supply, and the third mounting column 19 protects the power line on one hand and reduces the damage caused by friction between the power line and the mounting base 1; on the other hand, the winding of the power supply line is reduced.
The mounting base 1 is provided with mounting hole 16 and respirator 17, and respirator 17 is located mounting hole 16, and mounting hole 16 inner wall is provided with the flange 161 that is used for with respirator 17 joint, and the terminal surface that flange 161 kept away from the LED lamp module is contacted with respirator 17. When the LED works, most of electric energy is converted into heat energy, the temperature inside the outer cover 2 gradually rises, so that the air pressure inside the outer cover 2 rises, and a larger pressure is formed on the inner wall of the cavity of the outer cover 2. When the lamp is turned off, a certain negative pressure is formed in the cavity of the outer cover 2, the internal and external pressure difference can damage sealing parts of the lamp, the breather 17 can keep pressure balance at the inner side and the outer side of the outer cover through continuous ventilation, meanwhile, the LED lamp can be waterproof and dustproof, the LED can be effectively protected from negative influence of pressure difference caused by temperature change on the shell, and the service life of the LED lamp is prolonged. In the present embodiment, the mounting hole 16 is located at the center of the mounting base 1; the respirator 17 has a waterproof and breathable membrane that is combined with other materials such as plastic, metal, and silica gel in the form of injection molding, ultrasonic welding, interference fit, etc., to form a mounting member that can be hermetically sealed, and is mounted in the mounting hole 16.
The implementation principle of the lamp heat dissipation device in the embodiment of the application is as follows: the first radiating fin 11, the second radiating fin 14 and the third radiating fin 15 increase the contact area of the mounting base 1 and the air through the curved surface areas thereof, so that the heat generated by the LEDs is transferred to the air through the first radiating fin 11; on the other hand, the plurality of second radiating fins 14 and the third radiating fins 15 isolate the first radiating channel 12 into a left channel and a right channel, the size of the first radiating channel 12 is further narrowed, the width of the channel close to the edge of the mounting base 1 is larger, and external air is conveniently introduced into the first radiating channel 12; in the process of air flowing along the channel, the width of the channel is gradually narrowed from the edge to the center, the air flow is quickened, heat generated during the working of the LED can be taken away rapidly, the heat near the center of the mounting base 1 is the most, the channel width of the first heat dissipation channel 12 at the position is also the least, the corresponding air flow velocity at the position is the most, heat can be taken away rapidly, heat dissipation can be carried out through the convection of the air, and therefore the air flow of the heat dissipation device is guaranteed to take away heat rapidly, and the heat dissipation efficiency is improved.
The foregoing description is not intended to limit the scope of the present application, in which like reference numerals refer to like elements throughout, and it should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the foregoing description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a particular element, respectively. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (9)

1. The lamp radiating device is characterized by comprising a mounting base (1) for mounting an LED module, wherein a plurality of first radiating fins (11) are arranged on the end face, far away from the LED module, of the mounting base (1), and the plurality of first radiating fins (11) are uniformly arranged in an annular array along the center of the mounting base (1); a first heat dissipation channel (12) for dissipating heat is formed between the adjacent first heat dissipation fins (11), and the width of the first heat dissipation channel (12) close to the center side of the mounting base (1) is smaller than the width of the first heat dissipation channel close to the edge side of the mounting base (1).
2. A heat dissipation device for a lamp according to claim 1, wherein the plurality of first heat dissipation fins (11) are curved fins curved toward one side, and the plurality of first heat dissipation fins (11) are curved in the same direction.
3. A lamp heat dissipation device according to claim 2, characterized in that the first heat dissipation fin (11) is provided with a plurality of first mounting posts (13) for fixing the LED lamp module, one end of the first mounting posts (13) is fixedly connected with the mounting base (1); the first mounting column (13) is provided with a first mounting groove (131) for bolt matching, and the column body of the first mounting column (13) is positioned at the midpoint of the first radiating fin (11) and is fixedly connected with the first radiating fin (11).
4. A lamp radiating device according to claim 1, wherein each two first radiating fins (11) are a group, second radiating fins (14) for enhancing radiating effect are arranged between adjacent first radiating fins (11) in each group, the plurality of second radiating fins (14) are fixedly connected with the mounting base (1), the second radiating fins (14) are curved fins curved towards one side, and the bending direction of the second radiating fins (14) is consistent with the bending direction of the first radiating fins (11).
5. A lamp heat dissipation device according to claim 4, further comprising a housing (2), wherein an end of the second heat dissipation fin (14) away from the center of the mounting base (1) is fixedly connected with the housing (2), the housing (2) is located at the periphery of the mounting base (1) and the housing (2) is coaxial with the mounting base (1); a second heat dissipation channel (3) is arranged between the outer cover (2) and the mounting base (1), and the first heat dissipation channel (12) is communicated with the second heat dissipation channel (3).
6. The lamp radiating device according to claim 5, wherein a third radiating fin (15) for enhancing a radiating effect is arranged between each adjacent group of first radiating fins (11), a plurality of the third radiating fins (15) are fixedly connected with the mounting base (1), the third radiating fins (15) are curved fins which are curved towards one side, the bending direction of the third radiating fins (15) is consistent with the bending direction of the first radiating fins (11), and one end of the third radiating fins (15) away from the center of the mounting base (1) is fixedly connected with the outer cover (2).
7. A light fixture heat sink as recited in claim 6 further comprising a mounting bracket connected to the ceiling; the mounting base (1) is provided with a plurality of second mounting columns (18), one end of each second mounting column (18) is fixedly connected with the mounting base (1), each second mounting column (18) is provided with a second mounting groove (181) for bolt matching, and each second mounting column (18) is detachably connected with the mounting bracket.
8. A luminaire heat sink as claimed in claim 1, characterized in that the mounting base (1) is provided with a third mounting post (19) for mounting a power cord, the third mounting post (19) being provided with a through hole (191); the third mounting columns (19) are provided with a plurality of third mounting columns (19) which are uniformly arranged in an annular array along the center of the mounting base (1).
9. A lamp heat dissipation device according to claim 1, characterized in that the mounting base (1) is provided with a mounting hole (16) and a respirator (17), the respirator (17) is located in the mounting hole (16), the inner wall of the mounting hole (16) is provided with a flange (161) for being clamped with the respirator (17), and the end face of the flange (161) away from the LED lamp module is contacted with the respirator (17).
CN202310232962.9A 2023-03-02 2023-03-02 Lamp heat dissipation device Pending CN116146955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310232962.9A CN116146955A (en) 2023-03-02 2023-03-02 Lamp heat dissipation device

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Application Number Priority Date Filing Date Title
CN202310232962.9A CN116146955A (en) 2023-03-02 2023-03-02 Lamp heat dissipation device

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CN116146955A true CN116146955A (en) 2023-05-23

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CN202310232962.9A Pending CN116146955A (en) 2023-03-02 2023-03-02 Lamp heat dissipation device

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