CN111486358A - L ED lamp - Google Patents
L ED lamp Download PDFInfo
- Publication number
- CN111486358A CN111486358A CN201911032565.7A CN201911032565A CN111486358A CN 111486358 A CN111486358 A CN 111486358A CN 201911032565 A CN201911032565 A CN 201911032565A CN 111486358 A CN111486358 A CN 111486358A
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- CN
- China
- Prior art keywords
- heat sink
- light source
- driver
- lamp
- heat
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
- F21V29/15—Thermal insulation
-
- 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
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/508—Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
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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
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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
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
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- 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]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to the technical field of lighting appliances, in particular to an L ED lamp, which comprises a light source, a driver and a radiator, wherein the radiator comprises a first radiating fin and a second radiating fin, the light source and the driver are both connected with the radiator, the driver is arranged on one side of the radiator far away from the light source and is connected with the first radiating fin, the second radiating fin is arranged between the driver and the light source, and the driver and the second radiating fins are arranged at intervals.
Description
Technical Field
The invention relates to the technical field of lighting appliances, in particular to an L ED lamp.
Background
L ED (L light Emitting Diode) lamp has the characteristics of small volume, relatively small power consumption and long service life, and is widely applied to people's daily life and work at present, L ED lamp includes light source and drive, the drive can convert the power supply into specific voltage and current to drive the light source to emit light, but the drive can generate heat during work, thereby affecting the temperature of the light source, and affecting the lighting effect and service life of L ED lamp.
Disclosure of Invention
The invention aims to provide an L ED lamp, which aims to solve the problem that the temperature of a light source is influenced by heat generated by driving of the conventional L ED lamp.
To solve the above problems, the present invention provides an L ED light fixture, comprising:
a heat sink including a first fin and a second fin;
a light source connected with the heat sink; and
the driving device is arranged on one side, far away from the light source, of the radiator and connected with the first radiating fins, the second radiating fins are arranged between the driving device and the light source, and the driving device and the second radiating fins are arranged at intervals.
Optionally, the heat sink further includes a support member, the support member is connected to the first heat sink and located on a side of the first heat sink away from the light source, and the driver is disposed on the support member.
Optionally, the support is integrally connected with the first heat sink.
Optionally, the heat sink further includes a third heat sink, the third heat sink is disposed between the driver and the light source, and a distance between the third heat sink and the driver is greater than a distance between the second heat sink and the driver in the direction from the light source to the driver.
Optionally, the thickness of the first heat sink is greater than the thickness of the second heat sink in a direction perpendicular to the driving direction from the light source.
Optionally, a cavity is disposed at one end of the heat sink close to the light source, and the L ED lamp further includes a heat conducting portion filled in the cavity, where the heat conducting portion is made of a phase change material.
Optionally, the heat sink further includes a reinforcing rib, and the reinforcing rib is located in the cavity and connected to an inner wall of the cavity.
Optionally, the heat sink is of unitary construction.
Optionally, the material of the heat sink is an aluminum alloy material.
Optionally, the light source includes a substrate and L ED, the substrate is attached to a side of the heat sink away from the driver, and the L ED is disposed on the substrate.
The embodiment of the invention has the following beneficial effects:
the L ED lamp is characterized in that the drive is arranged on the first radiating fin, the first radiating fin can prevent the heat of the drive from being conducted to the light source, the drive and the light source are positioned on two opposite sides of the radiator, the distance between the light source and the drive can be increased, and the influence of the heat of the drive on the light source is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic diagram of an embodiment L ED lamp;
FIG. 2 is a schematic structural diagram of the heat sink of FIG. 1;
FIG. 3 is a schematic view of the driving and heat sink assembly of FIG. 1 viewed along the X-direction;
fig. 4 is a cross-sectional view of the heat sink of fig. 3.
The reference numbers in the specification are as follows:
10. a light source; 11. a lens; 12. pressing a plate;
20. driving;
30. a heat sink; 301. a cavity; 321. a first heat sink; 322. a second heat sink; 324. a third heat sink; 34. a support member; 36. reinforcing ribs; 38. a sealing plug; 39. flanging;
41. a support; 42. a fastener.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the invention provides an L ED lamp including a light source 10, a driver 20 and a heat sink 30, wherein the driver 20 is used for converting a power supply into a specific voltage and current to drive the light source 10 to emit light, and the heat sink 30 is used for mounting the light source 10 and the driver 20 and dissipating heat from the light source 10, while preventing heat of the driver 20 from being conducted to the light source 10.
Referring to fig. 2 and 3 together, the light source 10 and the driver 20 are located at two opposite sides of the heat sink 30, the heat sink 30 includes a first heat sink 321 and a second heat sink 322, the driver 20 is connected to the first heat sink 321, the second heat sink 322 is disposed between the driver 20 and the light source 10, and the driver 20 and the second heat sink 322 are disposed at an interval. The driver 20 is disposed on the first heat sink 321, the first heat sink 321 can prevent heat of the driver 20 from being conducted to the light source 10, and the driver 20 and the light source 10 are located at two opposite sides of the heat sink 30, which can increase the distance between the light source 10 and the driver 20 and reduce the influence of the heat of the driver 20 on the light source 10. Meanwhile, a second heat sink 322 is disposed between the driver 20 and the light source 10, and the second heat sink 322 can further prevent heat of the driver 20 from being conducted to the light source 10. Moreover, the second heat sink 322 is spaced apart from the driver 20, and a heat dissipation space is left between the second heat sink 322 and the driver 20, so that the driver 20 can be prevented from affecting the heat dissipation of the second heat sink 322, and the heat dissipation effect of the heat sink 30 on the light source 10 is ensured.
In this embodiment, referring to fig. 1 and fig. 3 mainly, the heat sink 30 further includes a supporting member 34, the supporting member 34 is connected to one end of the first heat sink 321 away from the light source 10, and the driver 20 is connected to the first heat sink 321 through the supporting member 34, so as to increase the installation area of the driver 20, and to enable the driver 20 to be stably connected to the heat sink 30. Also, by providing the support 34, the thickness of the first heat radiating fins 321 in the Y direction can be reduced appropriately, i.e., the dimension of the first heat radiating fins 321 in the Y direction can be smaller than the dimension of the support 34 in this direction. Under the condition that the areas of the surfaces of the first cooling fins 321 and the second cooling fins 322 of the heat sink 30 are fixed, the thickness of the first cooling fins 321 is reduced, so that more cooling fins can be arranged on the heat sink 30, the heat dissipation area of the heat sink 30 is increased, and the heat dissipation effect is improved.
Specifically, in the present embodiment, the first heat dissipation fins 321 are provided with four fins, the support members 34 are provided with two fins, each two first heat dissipation fins 321 are connected to one support member 34, and the two support members 34 are spaced apart to support the driver 20 at both ends of the driver 20. Of course, in other embodiments, the driver 20 may also be directly connected to the first heat sink 321, and the number of the first heat sinks 321 and the supporting members 34, and the specific position of the supporting members 34 may be changed according to actual needs. Moreover, in the present embodiment, the support member 34 is integrally connected to the first heat sink 321, and the manufacturing is convenient.
In the present embodiment, in order to ensure the strength of the first heat dissipation fins 321 and avoid the first heat dissipation fins 321 from being deformed by force after the driver 20 is installed, the thickness of the first heat dissipation fins 321 is greater than that of the second heat dissipation fins 322.
Further, in the present embodiment, referring mainly to fig. 3, the heat dissipation fins further include a third heat dissipation fin 324. The third heat sink 324 is disposed between the light source 10 and the driver 20, and in a direction from the light source 10 to the driver 20, i.e., in the Z direction, a distance H1 between the third heat sink 324 and the driver 20 is greater than a distance H2 between the second heat sink 322 and the driver 20, so as to enhance air convection around the heat sink 30, so that the heat sink 30 can conduct heat to the air more quickly, and the heat dissipation effect of the heat sink 30 is improved. In addition, in the present embodiment, the first heat dissipation fins 321, the second heat dissipation fins 322 and the third heat dissipation fins 324 are all provided with a plurality of fins, and are arranged at intervals along the Y direction, and a plurality of second heat dissipation fins 322 are provided between two adjacent third heat dissipation fins 324, so as to enhance the air convection around the heat sink 30. Of course, in other embodiments, other heat sinks may be added at different distances from the driver 20, and heat sinks may be provided at positions other than between the light source 10 and the driver 20. In addition, in the present embodiment, the heat dissipation fins are all plate-shaped structures and extend in the Z direction, so that the structure of the heat sink 30 is simpler and the manufacturing is facilitated. Of course, in other embodiments, the heat sink may have a special-shaped structure.
It should be noted that, in the present embodiment, referring mainly to fig. 2 and 4, one end of the heat sink 30 close to the light source 10 is provided with a cavity 301, and the L ED lamp further includes a heat conducting portion filled in the cavity 301, where the heat conducting portion is made of a phase change material, such as water, etc. furthermore, in order to facilitate the phase change material to be filled in the cavity 301, and to facilitate the processing of the cavity 301, the cavity 301 is through along the X direction, and the heat sink 30 further includes a sealing plug 38, where the sealing plug 38 can seal the opening of the cavity 301 and seal the phase change material in the cavity 301.
Further, as shown in fig. 4, the heat sink 30 further includes a rib 36, and the rib 36 is located in the cavity 301 and connected to the inner wall of the cavity 301 to increase the structural strength of the heat sink 30.
In the present embodiment, the heat sink 30 is an integral structure, which can simplify the processing steps and ensure the processing precision, and in order to ensure the heat dissipation effect of the heat sink 30, the heat sink 30 is made of an aluminum alloy material, which has good heat conductivity and low density, so as to reduce the weight of the heat sink 30 and the L ED lamp using the heat sink 30.
In this embodiment, the light source 10 includes a substrate and L ED, the substrate is attached to a side of the heat sink 30 away from the driver 20, L ED is disposed on the substrate to conduct heat to the heat sink 30 through the substrate, the substrate is made of aluminum alloy, and the surface area of the substrate is smaller than the surface of the heat sink 30 attached to the substrate, so that the substrate is completely attached to the heat sink 30 to enhance the heat dissipation effect, the light source 10 further includes a lens 11 and a pressing plate 12, the lens 11 includes a light-transmitting portion and a mounting portion, the substrate is disposed between the light-transmitting portion and the heat sink 30, light emitted from L ED can be emitted through the light-transmitting portion, the mounting portion is disposed around the light-transmitting portion and is disposed between the pressing plate 12 and the heat sink 30, and the pressing plate 12 is connected to.
In addition, referring primarily to FIG. 1, the L ED light fixture further includes a bracket 41, the heat sink 30 further includes flanges 39 disposed on either side of the light source 10, the bracket 41 is connected to the flanges 39 and is used to mount the L ED light fixture in this embodiment, the bracket 41 is connected to the flanges 39 by fasteners 42, the relative position of the heat sink 30 and the bracket 41 can be adjusted to adjust the illumination angle of the L ED light fixture when the fasteners 42 are loosened, and the surface of the bracket 41 is provided with graduations surrounding the fasteners 42 to indicate the rotation angle of the heat sink 30 relative to the bracket 41.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. An L ED light fixture, comprising:
a heat sink including a first fin and a second fin;
a light source connected with the heat sink; and
the driving device is arranged on one side, far away from the light source, of the radiator and connected with the first radiating fins, the second radiating fins are arranged between the driving device and the light source, and the driving device and the second radiating fins are arranged at intervals.
2. The L ED lamp of claim 1, wherein the heat sink further includes a support member connected to the first heat sink and located on a side of the first heat sink away from the light source, the driver being disposed on the support member.
3. The L ED light fixture of claim 2 wherein the support is integrally connected to the first heat sink.
4. The L ED light fixture of claim 1 wherein the heat sink further includes a third heat sink, the third heat sink being disposed between the driver and the light source and being spaced further from the driver than the second heat sink in the direction from the light source to the driver.
5. The L ED luminaire of claim 1, wherein a thickness of the first heatsink is greater than a thickness of the second heatsink in a direction perpendicular to the direction of drive from the light source.
6. The L ED lamp of claim 1, wherein the heat sink has a cavity at an end thereof adjacent to the light source, the L ED lamp further includes a thermal conductor filled in the cavity, and the thermal conductor is made of a phase change material.
7. The L ED lamp of claim 6, wherein the heat sink further includes ribs located within the cavity and connected to an inner wall of the cavity.
8. The L ED lamp of claim 1, wherein the heat sink is a unitary structure.
9. The L ED lamp of claim 1, wherein the heat sink material is aluminum alloy material.
10. The L ED lamp of claim 1, wherein the light source includes a substrate attached to a side of the heat sink away from the driver and L ED, the L ED being disposed on the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911032565.7A CN111486358A (en) | 2019-10-28 | 2019-10-28 | L ED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911032565.7A CN111486358A (en) | 2019-10-28 | 2019-10-28 | L ED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111486358A true CN111486358A (en) | 2020-08-04 |
Family
ID=71812273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911032565.7A Pending CN111486358A (en) | 2019-10-28 | 2019-10-28 | L ED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111486358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066282A (en) * | 2020-08-26 | 2020-12-11 | 深圳市海洋王照明工程有限公司 | Lighting lamp and mobile lighting platform |
| CN112325162A (en) * | 2020-09-23 | 2021-02-05 | 深圳市海洋王照明工程有限公司 | Lamp fitting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141217A (en) * | 2010-02-02 | 2011-08-03 | 王常荣 | High-power LED street lamp adopting heat-pipe heat radiation |
| CN203823521U (en) * | 2014-04-29 | 2014-09-10 | 深圳亚锐光电科技有限公司 | Embedded led lamp |
| TW201604486A (en) * | 2014-07-22 | 2016-02-01 | 玉晶光電股份有限公司 | High heat dissipating lamp |
-
2019
- 2019-10-28 CN CN201911032565.7A patent/CN111486358A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141217A (en) * | 2010-02-02 | 2011-08-03 | 王常荣 | High-power LED street lamp adopting heat-pipe heat radiation |
| CN203823521U (en) * | 2014-04-29 | 2014-09-10 | 深圳亚锐光电科技有限公司 | Embedded led lamp |
| TW201604486A (en) * | 2014-07-22 | 2016-02-01 | 玉晶光電股份有限公司 | High heat dissipating lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066282A (en) * | 2020-08-26 | 2020-12-11 | 深圳市海洋王照明工程有限公司 | Lighting lamp and mobile lighting platform |
| CN112325162A (en) * | 2020-09-23 | 2021-02-05 | 深圳市海洋王照明工程有限公司 | Lamp fitting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20200804 |