CN107606557B - High-heat-dissipation LED street lamp - Google Patents
High-heat-dissipation LED street lamp Download PDFInfo
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- CN107606557B CN107606557B CN201711102628.2A CN201711102628A CN107606557B CN 107606557 B CN107606557 B CN 107606557B CN 201711102628 A CN201711102628 A CN 201711102628A CN 107606557 B CN107606557 B CN 107606557B
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- radiator
- centrifugal fan
- foam metal
- micro motor
- led substrate
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- 239000002184 metal Substances 0.000 claims abstract description 64
- 229910052751 metal Inorganic materials 0.000 claims abstract description 64
- 239000006260 foam Substances 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005286 illumination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention provides a high-heat-dissipation LED street lamp which comprises a lamp post and a lamp holder arranged above the lamp post; the lamp cap comprises an LED substrate; a lampshade is arranged in front of the LED substrate, and the LED substrate is connected with a radiator in a heat conducting manner; the radiator is made of foam metal, a centrifugal fan driven by a micro motor is arranged outside the radiator, and an axial air inlet duct of the centrifugal fan is communicated to the center of the radiator; when the centrifugal fan rotates, external air flow passes through the gap structure of the radiator and is sucked into the axial air inlet duct of the centrifugal fan; a first humidity sensor and a second humidity sensor are respectively arranged outside the lamp cap and inside the radiator; and when the humidity difference between the first humidity sensor and the second humidity sensor reaches a set value, starting the micro motor, otherwise, closing the micro motor. The high-heat-dissipation LED street lamp has a heat dissipation structure with a small size and has an excellent heat dissipation effect.
Description
Technical Field
The invention relates to the field of lighting facilities, in particular to an LED street lamp.
Background
For the street lamp, as the illumination range is large and the requirement on illumination brightness is high, a lamp holder with high power needs to be configured; if the LED is adopted as the lighting lamp cap of the street lamp, a radiator with huge volume needs to be assembled, so that the heat dissipation requirement of the lamp cap can be basically met; the design difficulty of the appearance of the street lamp is increased, and the beautiful appearance of the street lamp is difficult to ensure on the basis of ensuring the excellent heat dissipation effect.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a high heat dissipation LED street lamp having a heat dissipation structure with a small volume and an excellent heat dissipation effect.
The technical scheme adopted by the invention for solving the technical problems is as follows: the high-heat-dissipation LED street lamp comprises a lamp post and a lamp holder arranged above the lamp post; the lamp cap comprises an LED substrate; a lampshade is arranged in front of the LED substrate, and the LED substrate is connected with a radiator in a heat conducting manner; the radiator is made of foam metal, a centrifugal fan driven by a micro motor is arranged outside the radiator, and an axial air inlet duct of the centrifugal fan is communicated to the center of the radiator; when the centrifugal fan rotates, external air flow passes through the gap structure of the radiator and is sucked into the axial air inlet duct of the centrifugal fan; a first humidity sensor and a second humidity sensor are respectively arranged outside the lamp cap and inside the radiator; and when the humidity difference between the first humidity sensor and the second humidity sensor reaches a set value, starting the micro motor, otherwise, closing the micro motor.
Preferably, the first humidity sensor is coupled to the current control module of the LED substrate, so that the input current of the LED substrate is in a positive correlation with the external humidity. Therefore, under the rainy or foggy weather, the illumination brightness is increased to meet the actual requirement.
Preferably, the LED substrate is connected to the heat sink through a hollow metal cavity in a heat conducting manner, so that heat generated by the LED substrate is conducted to the heat sink through a wall surface of the hollow metal cavity; the centrifugal fan is arranged in the hollow metal cavity; and the peripheral wall of the hollow metal cavity is provided with exhaust holes which are uniformly distributed in the circumferential direction and correspond to the periphery of the exhaust of the centrifugal fan; therefore, the centrifugal fan can avoid shielding the radiator and inhibit the heat radiation performance of the radiator. Further, the micro motor is arranged on one side of the radiator, which is far away from the hollow metal cavity; the micro motor drives the centrifugal fan through a rotating shaft penetrating through the peripheral surface of the radiator; still further, the centrifugal fan can axially slide on the rotating shaft; and the centrifugal fan is made of iron; when the centrifugal fan does not rotate, the centrifugal fan falls on the bottom surface of the hollow metal cavity under the action of self weight, so that the centrifugal fan forms a heat dissipation metal body; and when the micro motor starts, an electromagnet on the upper side of the centrifugal fan is started simultaneously, so that the centrifugal fan is enabled to slide upwards along the rotating shaft after receiving magnetic attraction force to separate from the wall surface of the hollow metal cavity, and friction between the centrifugal fan and the hollow metal cavity is eliminated.
Preferably, the radiator is formed by parallelly arranging foam metal sheets, and the thickness of each foam metal sheet is equal to the distance between adjacent foam metal sheets; and a radiator frame is sleeved outside the radiator; the surface of the radiator frame opposite to the foam metal sheet is communicated, strip-shaped holes are equidistantly distributed on the surface of the rest of the radiator frame surrounding the radiator, and the width of each strip-shaped hole is equal to the thickness of the foam metal sheet; the radiator frame can move horizontally along the orthogonal direction of the foam metal sheet, an elastic mechanism is arranged between the radiator frame and the radiator, and the radiator is also provided with an electromagnet; when the electromagnet is powered off, the radiator frame is kept in the following position states under the constraint of the elastic mechanism: the strip-shaped holes on the radiator frame are over against the intervals among the foam metal sheets, so that the radiator can smoothly and naturally radiate heat; the electromagnet is electrified only when the micro motor is started, and at the moment, the radiator frame translates to the following position states under the magnetic traction action of the electromagnet: the strip-shaped holes on the radiator frame are over against the side edges of the foam metal sheets, so that the radiator frame completely surrounds the intervals among the foam metal sheets, most of air flow can only sequentially penetrate through the foam metal sheets from the through side of the radiator frame and then enter the axial air inlet duct of the centrifugal fan, and the foam metal sheets can fully absorb water.
The invention has the beneficial effects that: in the working process of the high-heat-dissipation LED street lamp, if the high-heat-dissipation LED street lamp meets rainy night or foggy night weather, the centrifugal fan works, so that external water vapor is continuously sucked into the radiator formed by the foam metal; until the humidity inside and outside the radiator is close to each other; thus, the water accumulated in the pore structure of the heat sink gradually evaporates, so that the heat dissipation effect of the heat sink can be greatly improved, and thus, a heat sink with a small volume can produce an excellent heat dissipation effect.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the high heat dissipation LED street lamp.
Fig. 2 is a schematic structural diagram of a second embodiment of the high heat dissipation LED street lamp.
Fig. 3 is a schematic view of a heat sink frame in the second embodiment of the high heat dissipation LED street lamp.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
the first embodiment is as follows:
in the first embodiment shown in fig. 1, the high heat dissipation LED street lamp includes a lamp post (not shown) and a lamp cap disposed above the lamp post; the lamp cap comprises an LED substrate 1; the LED lamp comprises an LED substrate 1, a lampshade 2, a hollow metal cavity 6, a radiator 3 and a heat conducting plate, wherein the lampshade 2 is arranged in front of the LED substrate 1, and the LED substrate 1 is connected with the radiator 3 through the hollow metal cavity 6 in a heat conducting manner, so that heat generated by the LED substrate 1 is conducted to the radiator 3 through the wall surface of the hollow metal cavity 6; the radiator 3 is made of foam metal; a centrifugal fan 5 is arranged in the hollow metal cavity 6, and exhaust holes 60 which are uniformly distributed in the circumferential direction are formed in the peripheral wall of the hollow metal cavity 6 and correspond to the exhaust periphery of the centrifugal fan 5; the centrifugal fan 5 is driven by a micro motor 4 arranged on the upper part of the radiator 3, the centrifugal fan 5 and the micro motor 4 are connected through a cylindrical rotating shaft 7 which is through the peripheral surface and penetrates through the center of the radiator 4, and the cylindrical rotating shaft 7 forms an axial air inlet channel of the centrifugal fan 5; a bearing 70 of the cylindrical rotating shaft 7 is arranged in the radiator 3; as shown in fig. 1, when the centrifugal fan 5 rotates, the external air flow needs to pass through the gap structure of the heat sink 3 and then be sucked into the axial air inlet duct of the centrifugal fan 5; a first humidity sensor 81 and a second humidity sensor 82 are respectively arranged outside the lamp cap and inside the radiator 3; when the humidity difference between the first humidity sensor 81 and the second humidity sensor 82 reaches a set value, the micro motor 4 is started, otherwise, the micro motor 4 is turned off.
In the working process of the high-heat-dissipation LED street lamp, if the high-heat-dissipation LED street lamp meets rainy night or foggy night weather, the centrifugal fan 5 works to enable external water vapor to be continuously sucked into the radiator 3 formed by the foam metal; until the humidity inside and outside the radiator 3 approaches each other; this allows the water accumulated in the pore structure of the heat sink 3 to be gradually evaporated, thereby greatly improving the heat dissipation effect of the heat sink 3, and thus enabling a heat sink having a small volume to have an excellent heat dissipation effect.
Example two:
in the second embodiment shown in fig. 2 and 3, different from the first embodiment, the heat sink 3 is formed by arranging foam metal sheets 31 in parallel, and the thickness of the foam metal sheets 31 is equal to the distance between adjacent foam metal sheets; and a radiator frame 9 is sleeved outside the radiator; the surface of the radiator frame 9 opposite to the foam metal sheet 31 is through, strip-shaped holes 90 are equidistantly distributed on the surface of the rest surrounding the radiator 3, and the width of each strip-shaped hole 90 is equal to the thickness of the foam metal sheet 31; the radiator frame 9 can translate along the orthogonal direction of the foam metal sheet 31, namely along the direction a-b in fig. 3, an elastic mechanism (a simple mechanism, not shown) is arranged between the radiator frame 9 and the radiator 3, and an electromagnet 91 is arranged on the radiator 3; when the electromagnet 91 is powered off, the radiator frame 9 is kept in the following position state under the constraint of the elastic mechanism: the strip-shaped holes 90 on the radiator frame 9 are over against the intervals among the foam metal sheets 31, so that the radiator 3 can smoothly and naturally radiate heat; the electromagnet 91 is energized only when the micro-motor 4 is started, and at this time, the radiator frame 9 is translated to the following position state under the magnetic traction of the electromagnet 91: the strip holes 90 on the radiator frame 9 are over against the side edges of the foam metal sheets 31, so that the radiator frame 9 completely surrounds the intervals between the foam metal sheets 31, most of the air flow can only pass through the foam metal sheets 31 from the through side of the radiator frame 9 in sequence and then enter the axial air inlet duct of the centrifugal fan 5, and the foam metal sheets 31 can fully absorb moisture.
In addition, the centrifugal fan 5 can be movably matched with the cylindrical rotating shaft 7, so that the centrifugal fan 5 can axially slide along the cylindrical rotating shaft 7; and the centrifugal fan 5 is made of iron; when the centrifugal fan 5 does not rotate, the centrifugal fan 5 falls on the bottom surface of the hollow metal cavity 6 under the action of self weight, so that the centrifugal fan 5 forms a heat dissipation metal body; when the micro motor 4 is started, the electromagnet 91 is switched on simultaneously, so that the centrifugal fan 5 is subjected to magnetic attraction and slides upwards along the cylindrical rotating shaft 7 to be separated from the wall surface of the hollow metal cavity 6, and friction between the centrifugal fan 5 and the hollow metal cavity 6 is eliminated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
Claims (3)
1. A high heat dissipation LED street lamp comprises a lamp post and a lamp holder arranged above the lamp post; the lamp cap comprises an LED substrate (1); a lampshade (2) is arranged in front of the LED substrate (1), and the LED substrate (1) is connected with a radiator (3) in a heat conduction manner; the radiator (3) is made of foam metal, a centrifugal fan (5) driven by a micro motor (4) is arranged outside the radiator (3), and an axial air inlet channel of the centrifugal fan (5) is communicated to the center of the radiator (3); when the centrifugal fan (5) rotates, external air flow passes through the gap structure of the radiator (3) and is sucked into the axial air inlet duct of the centrifugal fan (5); a first humidity sensor (81) and a second humidity sensor (82) are respectively arranged outside the lamp cap and inside the radiator (3); when the humidity difference between the first humidity sensor (81) and the second humidity sensor (82) reaches a set value, the micro motor (4) is started, otherwise, the micro motor (4) is closed, and the humidity control method is characterized in that: the LED substrate (1) is in heat conduction connection with the radiator (3) through a hollow metal cavity (6), so that heat generated by the LED substrate (1) is conducted to the radiator (3) through the wall surface of the hollow metal cavity (6); the centrifugal fan (5) is arranged in the hollow metal cavity (6); and the peripheral wall of the hollow metal cavity (6) is provided with air exhaust holes (60) which are uniformly distributed in the circumferential direction corresponding to the air exhaust periphery of the centrifugal fan (5), and the micro motor (4) is arranged on one side of the radiator (3) far away from the hollow metal cavity (6); the micro motor (4) drives the centrifugal fan (5) through a cylindrical rotating shaft (7) which penetrates through the radiator (3) and has a through peripheral surface, the radiator (3) is formed by parallelly arranging foam metal sheets (31), and the thickness of each foam metal sheet (31) is equal to the distance between adjacent foam metal sheets; a radiator frame (9) is sleeved outside the radiator (3); the surface of the radiator frame (9) opposite to the foam metal sheet (31) is through, strip-shaped holes (90) are equidistantly distributed on the surface of the rest surrounding the radiator (3), and the width of each strip-shaped hole (90) is equal to the thickness of the foam metal sheet (31); the radiator frame (9) can translate along the orthogonal direction of the foam metal sheet (31), an elastic mechanism is arranged between the radiator frame (9) and the radiator (3), and an electromagnet (91) is further arranged on the radiator (3); when the electromagnet (91) is powered off, the radiator frame (9) is kept in the following position state under the constraint of the elastic mechanism: the strip-shaped holes (90) on the radiator frame (9) are over against the intervals among the foam metal sheets (31); the electromagnet (91) is electrified only when the micro motor (4) is started, and at the moment, the radiator frame (9) translates to the following position states under the magnetic traction action of the electromagnet (91): the strip-shaped holes (90) on the radiator frame (9) are opposite to the side edges of the foam metal sheets (31), so that the radiator frame (9) completely surrounds the intervals between the foam metal sheets (31).
2. The high heat dissipation LED street lamp according to claim 1, wherein: the first humidity sensor (81) is coupled to the current control module of the LED substrate (1) so that the input current of the LED substrate (1) is in positive correlation with the external humidity.
3. The high heat dissipation LED street lamp according to claim 1, wherein: the centrifugal fan (5) can axially slide on the cylindrical rotating shaft (7); and the centrifugal fan (5) is made of iron; when the centrifugal fan (5) does not rotate, the centrifugal fan falls on the bottom surface of the hollow metal cavity (6) under the action of self weight, so that the centrifugal fan (5) forms a heat dissipation metal body; and when micro motor (4) started, start an electromagnet of centrifugal fan (5) upside simultaneously, make centrifugal fan (5) receive behind the magnetic attraction force edge cylinder-shaped rotating shaft (7) is slided and is detached the wall in hollow metal chamber (6) to eliminate the friction between centrifugal fan (5) and hollow metal chamber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102628.2A CN107606557B (en) | 2017-11-10 | 2017-11-10 | High-heat-dissipation LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711102628.2A CN107606557B (en) | 2017-11-10 | 2017-11-10 | High-heat-dissipation LED street lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606557A CN107606557A (en) | 2018-01-19 |
| CN107606557B true CN107606557B (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711102628.2A Active CN107606557B (en) | 2017-11-10 | 2017-11-10 | High-heat-dissipation LED street lamp |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614325A (en) * | 2008-06-27 | 2009-12-30 | 富准精密工业(深圳)有限公司 | Semiconductor illumination device |
| CN102095173A (en) * | 2009-12-10 | 2011-06-15 | 阿兰图姆公司 | Cooling device for light-emitting diode |
| CN102980159A (en) * | 2012-11-14 | 2013-03-20 | 深圳大学 | Heat dissipation device and manufacture method thereof and light-emitting diode (LED) light source provided with the same |
| CN204187338U (en) * | 2014-11-02 | 2015-03-04 | 刘惠强 | New easy heat dissipation LED lamp |
| CN204853017U (en) * | 2015-07-30 | 2015-12-09 | 广西南宁先欧电子开发有限公司 | LED anion air purifying lamp |
| CN107228286A (en) * | 2017-07-21 | 2017-10-03 | 广州南科集成电子有限公司 | It is a kind of do not need independent electrical source capsule LED light power supply assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015002027A (en) * | 2013-06-13 | 2015-01-05 | オーウエル株式会社 | Lighting device |
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2017
- 2017-11-10 CN CN201711102628.2A patent/CN107606557B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614325A (en) * | 2008-06-27 | 2009-12-30 | 富准精密工业(深圳)有限公司 | Semiconductor illumination device |
| CN102095173A (en) * | 2009-12-10 | 2011-06-15 | 阿兰图姆公司 | Cooling device for light-emitting diode |
| CN102980159A (en) * | 2012-11-14 | 2013-03-20 | 深圳大学 | Heat dissipation device and manufacture method thereof and light-emitting diode (LED) light source provided with the same |
| CN204187338U (en) * | 2014-11-02 | 2015-03-04 | 刘惠强 | New easy heat dissipation LED lamp |
| CN204853017U (en) * | 2015-07-30 | 2015-12-09 | 广西南宁先欧电子开发有限公司 | LED anion air purifying lamp |
| CN107228286A (en) * | 2017-07-21 | 2017-10-03 | 广州南科集成电子有限公司 | It is a kind of do not need independent electrical source capsule LED light power supply assembly |
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| Publication number | Publication date |
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| CN107606557A (en) | 2018-01-19 |
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Effective date of registration: 20200325 Address after: 225000, Jiangsu, Yangzhou City, Gaoyou province Guo town set industrial concentrated area Applicant after: JIANGSU SILUOER GROUP Co.,Ltd. Address before: Suzhou Wuzhong District City, Jiangsu province 215000 Soochow road name 125 Yu Business Plaza No. 3 Building 7 floor Applicant before: Peng Congwen |
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