CN109027784B - LED lamp capable of efficiently dissipating heat - Google Patents
LED lamp capable of efficiently dissipating heat Download PDFInfo
- Publication number
- CN109027784B CN109027784B CN201810704758.1A CN201810704758A CN109027784B CN 109027784 B CN109027784 B CN 109027784B CN 201810704758 A CN201810704758 A CN 201810704758A CN 109027784 B CN109027784 B CN 109027784B
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- China
- Prior art keywords
- shell
- partition plate
- wall
- led lamp
- mounting disc
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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
- F21S8/00—Lighting devices intended for fixed installation
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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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
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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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
- F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
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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
- F21V29/56—Cooling arrangements using liquid coolants
- F21V29/58—Cooling arrangements using liquid coolants characterised by the coolants
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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)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses an LED lamp capable of efficiently radiating heat, which comprises an LED lamp bead and an installation disc, wherein the top surface of the installation disc is provided with a heat radiating device, the heat radiating device comprises a shell, heat conducting liquid is filled in the shell, a partition plate I is fixedly installed in the shell, the inner wall of the partition plate I comprises three sections, namely a first straight cylinder section, a conical section and a second straight cylinder section from top to bottom, the outer wall of the partition plate I comprises two sections, namely a slope section and a third straight cylinder section from top to bottom, a plurality of partition plates II are connected between the outer wall of the partition plate I and the inner wall of the shell, the outer wall of the partition plate I is provided with a bulge along the axial direction of the partition plate II, and the bottom; a threading hole is formed in the center of the mounting plate, and a threading pipe is vertically arranged at the threading hole; the top of the shell is connected with the lamp cap through a connecting piece. The heat exchange is realized through the shell, and the heat dissipation efficiency of the LED lamp is improved on the premise of not increasing the volume of the heat dissipation device.
Description
Technical Field
The invention relates to an LED technology, in particular to an LED lamp capable of efficiently radiating heat.
Background
The LED lamp has the characteristics of energy conservation and long service life, avoids the trouble that the bulb needs to be replaced frequently, and is favored by more and more users. However, the heat dissipation problem of the LED lamp is also a key problem, and the light efficiency and the service life of the LED light source are seriously affected by the heat dissipation efficiency. At present, a lampshade of an LED lamp for condensing light is generally closed, and because an LED lamp bead is sealed in the lampshade, the LED lamp bead can only radiate heat above the lampshade through a radiating piece on a mounting substrate. The heat dissipation efficiency of the heat dissipation member is proportional to the volume of the heat dissipation member, and therefore, in view of the current heat dissipation member technology of the LED lamp, if the heat dissipation efficiency of the heat dissipation member is to be improved, the heat dissipation efficiency must be improved by increasing the volume of the heat dissipation member, which, however, may result in an increase in the overall volume and weight of the LED lamp.
Disclosure of Invention
The invention aims to provide an LED lamp capable of efficiently dissipating heat, which can effectively solve the problem of heat dissipation and improve the heat dissipation efficiency on the premise of not increasing the volume of a heat dissipation piece.
In order to achieve the above purpose, the present invention provides the following technical solutions: an LED lamp capable of efficiently dissipating heat comprises a mounting disc for mounting LED lamp beads and the LED lamp beads distributed on the bottom surface of the mounting disc, wherein the mounting disc is fixed in a lamp shade, a heat dissipation device is arranged on the top surface of the mounting disc, the heat dissipation device comprises a shell, the bottom of the shell is fixed and sealed with the top surface of the mounting disc, a closed accommodating space is formed between the shell and the mounting disc, heat conducting liquid is filled in the accommodating space, a partition plate I is fixedly mounted in the accommodating space, the inner wall of the partition plate I comprises three sections which are respectively a first straight cylinder section, a conical section and a second straight cylinder section from top to bottom, the inner diameter of the first straight cylinder section is smaller than that of the second straight cylinder section, the outer wall of the partition plate I comprises two sections which are respectively a slope section and a third straight cylinder section from top to bottom, the third straight cylinder section is adapted to the second straight cylinder section, and the third straight cylinder section and the second straight cylinder section jointly form the bottom of the partition plate I, the bottom of the partition board I is fixed with the top surface of the mounting disc, the gradient of the slope section is larger than that of the conical section, a plurality of partition boards II are connected between the outer wall of each partition board I and the inner wall of the shell, a circulation channel is formed between every two adjacent partition boards II, a plurality of bulges are arranged on the outer wall of each partition board I in the circulation channel along the axis direction of each partition board II, the top of the circulation channel is communicated with the first straight cylinder section, a plurality of one-way valves are arranged at the bottom of each partition board I, the one-way valves are uniformly distributed along the circumference of the bottom of each partition board I, and the one-way valves are communicated with inner and outer accommodating; a threading hole is formed in the center of the mounting plate, and a threading pipe is vertically arranged at the threading hole; the top of the shell is connected with the lamp cap through a connecting piece.
Preferably, the connecting piece is a cylinder, an internal thread is arranged at one end of the connecting piece, which is connected with the shell, an internal thread is arranged at one end of the connecting piece, which is connected with the lamp cap, an internal thread is arranged at one end of the shell, which is connected with the connecting piece, and an internal thread is arranged at one end of the lamp cap, which is connected with the connecting piece.
Preferably, the outer wall of casing is cylindricly, and the inner wall of casing is parallel with the outer wall of baffle I.
Preferably, the outer diameter of the housing is larger than the diameter of the mounting plate, and the bottom of the housing is connected to the mounting plate by an inverted conical plate, the bottom of which is integrally connected to the edge of the mounting plate.
Preferably, the external diameter of I bottom of baffle is unanimous with the diameter of mounting disc, and the end edge department at the mounting disc is fixed to the bottom of baffle I.
Preferably, the middle part of the conical plate is provided with a clamping groove for connecting the lampshade, and the end edge of the lampshade is clamped in the clamping groove.
Preferably, the length of the partition plate II is consistent with that of the slope section of the outer wall of the partition plate I.
By adopting the technical scheme, when the LED lamp works, the heat emitted by the LED lamp beads is transmitted to the heat-conducting liquid in the partition plate I through the mounting plate, the heat-conducting liquid in the partition plate I expands after being heated, and the density of the part of the heat absorbed by the heat-conducting liquid is reduced, so that the heat-conducting liquid flows upwards after being heated, the heat-conducting liquid with lower temperature in the partition plate I flows downwards and also expands after being subjected to heat exchange with the mounting plate, because the check valve is arranged at the bottom of the partition plate I, and the top of the circulation channel is communicated with the first straight cylinder section, the density difference is formed between the heat-conducting liquid in the partition plate I and the heat-conducting liquid in the circulation channel, and therefore the heat-conducting liquid at the bottom between the shell and the partition plate I can horizontally flow into the partition plate I through the check valve, so that the heat-conducting liquid with lower temperature reenters the mounting plate, and the, the shell is cooled through heat exchange with the outside, and the heat conduction liquid continuously flows to the bottom of the circulation channel, so that circulation of the heat conduction liquid is realized. According to the invention, the outer wall of the partition plate I positioned in the flow channel is provided with the bulge along the axial direction of the partition plate II, and the distance between the bulge and the inner wall of the shell is smaller than the distance between the inner wall of the shell and the outer wall of the partition plate I, so that the heat-conducting liquid becomes thinner at the position of the bulge, and the rapid cooling is realized. The heat-conducting liquid is adopted to absorb the heat generated by the LED lamp beads, the shell realizes heat exchange, and the heat-radiating efficiency of the LED lamp is improved on the premise of not increasing the volume of the heat-radiating device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of a separator I of the present invention;
FIG. 3 is a schematic structural view of the housing of the present invention;
FIG. 4 is a schematic view of the installation of the partition II of the present invention;
FIG. 5 is a view from the direction A of FIG. 4;
FIG. 6 is a schematic view of the construction of the tapered plate of the present invention;
FIG. 7 is a schematic view of the installation position of the partition plate II and the heat sink according to the present invention.
Detailed Description
The invention will be further illustrated by the following description of embodiments in conjunction with the accompanying drawings:
as shown in fig. 1 to 7, the LED lamp capable of dissipating heat efficiently comprises a mounting plate 2 for mounting LED lamp beads 1 and LED lamp beads 1 distributed on the bottom surface of the mounting plate 2, wherein the mounting plate 2 is fixed in a lampshade 3, and a heat dissipating device is arranged on the top surface of the mounting plate 2.
The heat dissipation device comprises a shell 4, the bottom of the shell 4 is fixed and sealed with the top surface of the mounting disc 2, a closed accommodating space is formed between the shell 4 and the mounting disc 2, heat conducting liquid is filled in the accommodating space, and a partition plate I6 is fixedly mounted in the accommodating space. The inner wall of the partition board I6 comprises three sections, namely a first straight cylinder section 61, a conical section 62 and a second straight cylinder section 63 from top to bottom, the inner diameter of the first straight cylinder section 61 is smaller than that of the second straight cylinder section 63, the outer wall of the partition board I6 comprises two sections, namely a slope section 64 and a third straight cylinder section 65 from top to bottom, the third straight cylinder section 65 is matched with the second straight cylinder section 63, and the third straight cylinder section 65 and the second straight cylinder section 63 jointly form the bottom of the partition board I6. The bottom of baffle I6 is fixed with the top surface of mounting disc 2, the slope of slope section 64 is greater than the slope of cone section 62, be connected with a plurality of baffles II 7 between the outer wall of baffle I6 and the inner wall of casing 4, the length of baffle II 7 is unanimous with the length of the slope section 64 of the outer wall of baffle I6, constitute the circulation passageway between every two adjacent baffles II 7, the outer wall that lies in baffle I6 in the circulation passageway is equipped with protruding 8 along the axis direction of baffle II 7, the top and the first straight section 61 intercommunication of circulation passageway, the bottom of baffle I6 is equipped with round check valve 5, the even circumference distribution along baffle I6 bottom of check valve 5, inside and outside accommodation space that I6 separated into of baffle is passed through to check valve 5 intercommunication. The outer wall of casing 4 is cylindricly, and the inner wall of casing 4 is parallel with the outer wall of baffle I6. The center of the mounting disc 2 is provided with a threading hole 21, the threading hole 21 is vertically provided with a threading pipe 22, and a lead of the LED lamp bead 1 penetrates out of the heat dissipation device through the threading pipe 22 and is connected with the lamp cap 10. The top of the shell 4 is connected with a lamp cap 10 through a connecting piece 9, the connecting piece 9 is a cylinder, an internal thread is arranged at one end, connected with the shell 4, of the connecting piece 9, an internal thread is arranged at one end, connected with the lamp cap 10, of the connecting piece 9, an internal thread is arranged at one end, connected with the connecting piece 9, of the shell 4, and an internal thread is arranged at one end, connected with the connecting piece 9, of the lamp cap 10.
The outer diameter of the shell 4 is larger than that of the mounting disc 2, the bottom of the shell 4 is connected with the mounting disc 2 through an inverted conical plate 41, the bottom of the conical plate 41 is connected with the edge of the mounting disc 2 into a whole, the outer diameter of the bottom of the partition plate I6 is consistent with that of the mounting disc 2, and the bottom of the partition plate I6 is fixed at the end edge of the mounting disc 2, so that the occupied area of the inside of the partition plate I6 on the mounting disc 2 can be enlarged, and the contact area of heat-conducting liquid and the mounting disc 2 is maximized.
In the invention, the middle part of the conical plate 41 is provided with a clamping groove 31 for connecting the lampshade 3, and the end edge of the lampshade 3 is clamped in the clamping groove 31, so that the light diffusion angle of the LED lamp bead 1 is improved, and the illumination range of LED light is improved.
A circle of radiating fins 11 can be arranged on the outer wall of the shell 4, the radiating fins 11 are made of metal sheets, the number of the radiating fins 11 is the same as that of the partition plates II 7, and the connecting positions of the radiating fins 11 on the outer wall of the shell 4 correspond to the positions of the protrusions 8, namely the radiating fins are arranged between the two adjacent partition plates II 7, so that the radiating efficiency can be improved as much as possible, and the heat exchange time can be shortened.
Meanwhile, the heat-conducting liquid comprises the following components in percentage by weight: 60% of distilled water, 10% of potassium permanganate, 15% of ethanol, 10% of dibutyl phthalate and 5% of enzyme-free washing powder. When the formula is adopted, the heat-conducting liquid which is positioned inside the partition plate I6 and has a lower temperature can quickly sink to the mounting plate 2 through the catalysis of potassium permanganate, so that heat exchange can be carried out timely, meanwhile, the heat-conducting liquid after being heated is improved to be lifted upwards by utilizing the volatility of ethanol and dibutyl phthalate, and the enzyme-free washing powder enables the heat-conducting liquid to keep a certain lubricity. In order to improve the heat exchange efficiency, the heat conducting liquid with the formula is adopted, and meanwhile, a graphite heat conducting layer is arranged on the top surface of the mounting plate 2 and the inner wall of the shell 4.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (7)
1. The utility model provides a can high-efficient radiating LED lamp, is including being used for installing mounting disc (2) of LED lamp pearl (1) and being covered with LED lamp pearl (1) in mounting disc (2) bottom surface, mounting disc (2) are fixed in a lamp shade (3), the top surface of mounting disc (2) is equipped with heat abstractor, its characterized in that: the heat dissipation device comprises a shell (4), the bottom of the shell (4) is fixed and sealed with the top surface of a mounting disc (2), a closed containing space is formed between the shell (4) and the mounting disc (2), heat conducting liquid is filled in the containing space, a partition plate I (6) is fixedly installed in the containing space, the inner wall of the partition plate I (6) comprises three sections, a first straight cylinder section (61), a conical section (62) and a second straight cylinder section (63) are respectively arranged from top to bottom, the inner diameter of the first straight cylinder section (61) is smaller than that of the second straight cylinder section (63), the outer wall of the partition plate I (6) comprises two sections, a slope section (64) and a third straight cylinder section (65) are respectively arranged from top to bottom, the third straight cylinder section (65) is matched with the second straight cylinder section (63), and the third straight cylinder section (65) and the second straight cylinder section (63) jointly form the bottom of the partition plate I (6), the bottom of the partition plate I (6) is fixed with the top surface of the mounting disc (2), the gradient of the slope section (64) is larger than that of the conical section (62), a plurality of partition plates II (7) are connected between the outer wall of the partition plate I (6) and the inner wall of the shell (4), a circulation channel is formed between every two adjacent partition plates II (7), a plurality of bulges (8) are arranged on the outer wall of the partition plate I (6) in the circulation channel along the axis direction of the partition plate II (7), the top of the circulation channel is communicated with the first straight cylinder section (61), a plurality of check valves (5) are arranged at the bottom of the partition plate I (6), the check valves (5) are uniformly distributed along the circumference of the bottom of the partition plate I (6), and the check valves (5) are communicated with inner and outer containing spaces separated by the partition plate I (6); a threading hole (21) is formed in the center of the mounting disc (2), and a threading pipe (22) is vertically arranged in the threading hole (21); the top of the shell (4) is connected with a lamp holder (10) through a connecting piece (9);
the outer wall of the shell (4) can be provided with a circle of radiating fins (11), the radiating fins (11) are metal sheets, the number of the radiating fins (11) is consistent with that of the partition plates II (7), and the connecting positions of the radiating fins (11) on the outer wall of the shell (4) correspond to the positions of the protrusions (8) and are arranged between the two adjacent partition plates II (7).
2. The LED lamp capable of dissipating heat efficiently according to claim 1, wherein: the lamp holder is characterized in that the connecting piece (9) is a cylinder, an internal thread is arranged at one end, connected with the shell (4), of the connecting piece (9), an internal thread is arranged at one end, connected with the lamp holder (10), of the connecting piece (9), an internal thread is arranged at one end, connected with the connecting piece (9), of the shell (4), and an internal thread is arranged at one end, connected with the connecting piece (9), of the lamp holder (10).
3. The LED lamp capable of dissipating heat efficiently according to claim 2, wherein: the outer wall of casing (4) is cylindricly, and the inner wall of casing (4) is parallel with the outer wall of baffle I (6).
4. The LED lamp capable of dissipating heat efficiently according to claim 3, wherein: the outer diameter of the shell (4) is larger than the diameter of the mounting disc (2), the bottom of the shell (4) is connected with the mounting disc (2) through an inverted conical plate (41), and the bottom of the conical plate (41) is connected with the edge of the mounting disc (2) into a whole.
5. The LED lamp capable of dissipating heat efficiently according to claim 4, wherein: the external diameter of baffle I (6) bottom is unanimous with the diameter of mounting disc (2), and the end edge department at mounting disc (2) is fixed to the bottom of baffle I (6).
6. The LED lamp capable of dissipating heat efficiently according to claim 5, wherein: the middle part of the conical plate (41) is provided with a clamping groove (31) used for being connected with the lampshade (3), and the end edge of the lampshade (3) is clamped in the clamping groove (31).
7. The LED lamp capable of dissipating heat efficiently according to any one of claims 1 to 6, wherein: the length of the partition plate II (7) is consistent with that of the slope section (64) of the outer wall of the partition plate I (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704758.1A CN109027784B (en) | 2018-07-02 | 2018-07-02 | LED lamp capable of efficiently dissipating heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810704758.1A CN109027784B (en) | 2018-07-02 | 2018-07-02 | LED lamp capable of efficiently dissipating heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027784A CN109027784A (en) | 2018-12-18 |
| CN109027784B true CN109027784B (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810704758.1A Active CN109027784B (en) | 2018-07-02 | 2018-07-02 | LED lamp capable of efficiently dissipating heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027784B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008243780A (en) * | 2007-03-29 | 2008-10-09 | Tamkang Univ | High power led lighting assembly assembled with heat radiation module with heat pipe |
| CN204437768U (en) * | 2015-01-28 | 2015-07-01 | 张丽凤 | Liquid cooling type led lamp |
| CN108150978A (en) * | 2017-11-27 | 2018-06-12 | 安徽西马新能源技术有限公司 | A kind of vehicle LED radiating subassembly |
-
2018
- 2018-07-02 CN CN201810704758.1A patent/CN109027784B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008243780A (en) * | 2007-03-29 | 2008-10-09 | Tamkang Univ | High power led lighting assembly assembled with heat radiation module with heat pipe |
| CN204437768U (en) * | 2015-01-28 | 2015-07-01 | 张丽凤 | Liquid cooling type led lamp |
| CN108150978A (en) * | 2017-11-27 | 2018-06-12 | 安徽西马新能源技术有限公司 | A kind of vehicle LED radiating subassembly |
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| Publication number | Publication date |
|---|---|
| CN109027784A (en) | 2018-12-18 |
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Effective date of registration: 20210114 Address after: 314308 Building 2, Zhuangjia village, Yucheng Town, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: JIAXING LIANYING TECHNOLOGY Co.,Ltd. Address before: 237000 dagudian village, Yaoli Town, Yeji District, Lu'an City, Anhui Province Applicant before: LU'AN YEJI DISTRICT HONGGANG POWER INSTALLATION ENGINEERING Co.,Ltd. |
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