CN212080965U - LED street lamp with drive power supply isolated from LED light source - Google Patents
LED street lamp with drive power supply isolated from LED light source Download PDFInfo
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- CN212080965U CN212080965U CN202020749247.4U CN202020749247U CN212080965U CN 212080965 U CN212080965 U CN 212080965U CN 202020749247 U CN202020749247 U CN 202020749247U CN 212080965 U CN212080965 U CN 212080965U
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- power supply
- light source
- led light
- driving power
- street lamp
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- 230000007246 mechanism Effects 0.000 claims abstract description 91
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 22
- 230000017525 heat dissipation Effects 0.000 description 12
- 125000006850 spacer group Chemical group 0.000 description 10
- 230000000694 effects Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 241000258971 Brachiopoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model belongs to the technical field of the municipal administration illumination, a LED street lamp is related to. The LED street lamp with the driving power supply separated from the LED light source comprises a driving power supply mechanism and an LED light source mechanism, wherein the driving power supply mechanism is connected with the LED light source mechanism through a mechanical connecting mechanism, and an air gap is formed between the driving power supply mechanism and the LED light source mechanism through the mechanical connecting mechanism. The utility model discloses an isolated LED street lamp of drive power supply and LED light source compares with current LED street lamp, because air gap's existence, can effectively block the heat that LED light source mechanism produced and pass to drive power supply mechanism, avoids high temperature environment to drive power supply's harm, extension drive power supply's running life.
Description
Technical Field
The utility model belongs to the technical field of the municipal administration illumination, a LED street lamp is related to.
Background
The service life of a driving power supply of the existing LED street lamp is about five years and is far shorter than that of an LED light source, and the service lives of LED street lamp systems are not matched. One reason for this is that the driving power supply 2 is installed in the heat dissipation mechanism 3 of the LED light source 1 having a high operating temperature, as shown in fig. 1, so that the driving power supply 2 operates at a high temperature close to that of the LED light source 1, and the life of the driving power supply is shortened.
The currently best LED light source is about 60% photoelectric conversion efficiency. That is, except that about 60% of the electric energy is converted into light energy, the rest of the electric energy is converted into heat energy. For example, a 150 watt LED light source has 60 watts of power converted to heat. To eliminate the negative effects of this heat, the LED light source is typically mounted in a heat sink mechanism to reduce its operating temperature. A large amount of heat generated by the LED light source is firstly conducted to the lamp shell heat dissipation mechanism, and then is exchanged with air through the heat dissipation mechanism and then is dissipated to the surrounding air. Even so, the outer surface of the lamp housing of the LED street lamp usually operates at 55 ℃ or lower, and even exceeds 75 ℃ under some extreme conditions. Therefore, the driving power supply which is located in the same lamp housing heat dissipation mechanism with the LED light source has to face the impact of a large amount of heat generated by the LED light source, and the working temperature is almost the same as the temperature of the LED light source heat dissipation mechanism. Since the driving power supply generally includes electronic components such as an electrolytic capacitor, a switching transistor, and a transformer, which have a life that is drastically shortened as the temperature rises, the life of the driving power supply is greatly shortened by the influence of the excessively high operating temperature of the heat dissipation mechanism of the LED light source. The service life of the traditional LED street lamp driving power supply is far lower than the service life value of an LED light source.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem that the heat dissipation that current LED street lamp exists badly causes the short-lived technical problem of drive power supply, provide one kind and can strengthen the heat dissipation, reduce the drive power supply temperature, improve its life's LED street lamp.
In order to realize the purpose, the utility model discloses a technical scheme is: the LED street lamp with the driving power supply separated from the LED light source comprises a driving power supply mechanism and an LED light source mechanism, wherein the driving power supply mechanism is connected with the LED light source mechanism through a mechanical connecting mechanism, and an air gap is formed between the driving power supply mechanism and the LED light source mechanism through the mechanical connecting mechanism.
As a preferable mode of the present invention, the mechanical connection mechanism includes a mechanical connection member for connecting the driving power supply mechanism and the LED light source mechanism together, and a gasket for forming an air gap between the driving mechanism and the LED light source mechanism.
Further preferably, the mechanical connecting member is selected from a bolt, a screw, a stud, a screw, or a rivet.
Further preferably, the gasket is arranged on the connecting end surface of the driving power supply mechanism or/and the LED light source mechanism.
Further preferably, the gasket is a convex gasket or a flat gasket.
Further preferably, the gasket is made of a metal material or an insulating material.
Further preferably, a heat insulating material is arranged in the air gap.
The utility model discloses an isolated LED street lamp of drive power supply and LED light source compares with current LED street lamp, because air gap's existence, can effectively block the heat that LED light source mechanism produced and pass to drive power supply mechanism, avoids high temperature environment to drive power supply's harm, extension drive power supply's running life.
Drawings
Fig. 1 is a conventional LED street lamp structure, in which an LED light source and a driving power supply are located in a heat dissipation mechanism;
fig. 2 is a side view of the LED street lamp with the driving power source isolated from the LED light source according to one embodiment of the present invention;
fig. 3 is a bottom view of one embodiment of the present invention;
FIG. 4 is an exploded view of one embodiment of the present invention;
fig. 5 is a partial block diagram of one embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The utility model provides an in one of them embodiment, as shown in fig. 2, 3, the LED street lamp mainly comprises LED light source mechanism 1 and drive power supply mechanism 2, and LED light source mechanism 1 and drive power supply mechanism 2 pass through mechanical joining machine 3 and connect.
As shown in fig. 4 and 5, in the present embodiment, the driving power supply mechanism 2 includes a metal chassis 6, a metal case 7, and a driving power supply 8. A driving power supply 8 for providing constant current for the LED light source mechanism 1 is fixed on the metal bottom plate 6, and a metal shell 7 is fixed above the metal bottom plate 1 and the driving power supply 8 and forms a closed driving power supply mechanism with the metal bottom plate and the driving power supply 8. The metal bottom plate 6 plays a role in mechanically supporting the whole LED street lamp and is used as a platform for arranging the driving power supply 8 and connecting the LED light source mechanism 1. A pair of metal rings 10 for connecting the lamp posts of the street lamp are welded on the metal bottom plate 6.
The metal bottom plate 6 is also provided with a lead through hole so as to connect a lead 9 of a driving power supply with the LED light source positioned below the metal bottom plate, and four screw through holes so as to lead the screws 5 to penetrate through the metal bottom plate so as to be mechanically connected with the LED light source mechanism 1 positioned below the metal bottom plate.
The LED light source mechanism 1 comprises an LED light source and a heat dissipation mechanism. The power of an LED light source is usually between 10 watts and 1000 watts, and the luminous efficiency is more than 80 lm/W; a plurality of radiating fins are distributed on the upper surface of the radiating mechanism so as to increase the radiating area of the radiating mechanism and reduce the working temperature of the LED light source. The LED light source mechanism 1 is connected with a driving power supply 8 through a lead wire 9 passing through a lead wire through hole on the metal base plate 6, so that stable current driving is obtained.
In the present embodiment, the mechanical connection mechanism 3 is composed of 4 metal screws 5 and 4 disc spacers 4 distributed on the LED light source mechanism 1. The 4 metal screws 5 are connected with the 4 disc gaskets 4 on the surface of the LED light source mechanism 1 below the metal screws through the screw through holes on the metal bottom plate 6, so that the two mechanisms are mechanically fixed together.
Wherein, the disc gasket 4 is a disc bulge or a flat washer with a certain thickness. The 4 disc spacers 4 are located between the LED light source mechanism 1 and the driving power source mechanism 2, and are spaced apart from each other, and an air gap 11 is formed between them, as shown in fig. 1.
The thickness of the disc spacer 4 determines the size of the gap separating the two mechanisms. In some embodiments of the present invention, the thickness of the 4 disc spacers 4 is 2mm, and the air gap between the two is then 2 mm. Furthermore, the diameter of the 4 disc spacers is 10mm and the diameter of the 4 metal screws 5 is 6 mm.
Because the air gap exists between the LED light source mechanism 1 and the driving power supply mechanism 2, the air is used as a heat insulation medium, the effect of isolating heat transfer between the LED light source mechanism 1 and the driving power supply mechanism 2 can be achieved, the working temperature of the driving power supply is greatly reduced, and the service life of the driving power supply is prolonged. And the air flow of the external environment is beneficial to the natural heat dissipation of the two-part mechanism so as to reduce the working temperature.
In some embodiments of the present invention, a thermal insulating material may be disposed in the air gap 11 to block heat conduction between the two mechanisms, thereby reducing the temperature of the driving power supply.
In the utility model discloses in some other embodiments, 4 disc spacers also can set up on drive power supply mechanism 2, distribute on being connected the face with LED light source mechanism 1, for example on the face is connected with LED light source mechanism 1 to metal bottom plate 6, correspondingly, reserve the through-hole that supplies metal screw 5 and wire 9 to pass on LED light source mechanism 1 for the machinery and the circuit connection of two mechanisms.
It should be noted that the 4 disc spacers may be integrated with the LED light source mechanism or the driving power supply mechanism, or may be spacers or flat washers separately added when the LED light source mechanism and the driving power supply mechanism are mechanically connected.
The disc gasket or the flat washer can be made of metal or insulating material. It should be noted that if the disc spacer or the flat washer is made of metal, the size of the disc spacer or the flat washer is not too large. If the size is too large, the heat conducting path between the LED light source mechanism and the driving power supply mechanism is used, so that the heat generated by the LED light source is continuously transmitted to the driving power supply mechanism, and the service life of the driving power supply is shortened.
The utility model provides a LED street lamp, through the test, reach thermal balance when full power operation 30 minutes promptly, the surface temperature of LED light source lamp body heat dissipation mechanism is about 55 ℃, and drive power supply's operating temperature is but less than 40 ℃, both temperatures differ more than 15 ℃. Therefore, the driving power supply is hardly affected by the heat generated by the LED light source mechanism, and the service life can be improved by at least 50%.
Claims (7)
1. LED street lamp that driving power supply and LED light source were isolated, including driving power supply mechanism and LED light source mechanism, driving power supply mechanism with LED light source mechanism passes through mechanical connection mechanism and connects its characterized in that: the mechanical connection mechanism forms an air gap between the driving power supply mechanism and the LED light source mechanism.
2. The LED street lamp with the driving power supply isolated from the LED light source according to claim 1, wherein: the mechanical connecting mechanism comprises a mechanical connecting part for connecting the driving power supply mechanism and the LED light source mechanism together, and a gasket for forming an air gap between the driving power supply mechanism and the LED light source mechanism.
3. The LED street lamp with the driving power supply isolated from the LED light source as claimed in claim 2, wherein: the mechanical connecting part is a bolt, a screw, a stud, a screw rod or a rivet.
4. The LED street lamp with the driving power supply isolated from the LED light source as claimed in claim 2, wherein: the gasket is arranged on the connecting end face of the driving power supply mechanism or/and the LED light source mechanism.
5. The LED street lamp with the driving power supply isolated from the LED light source as claimed in claim 2, wherein: the gasket is a disc bulge or a flat gasket.
6. The LED street lamp with the driving power supply isolated from the LED light source as claimed in claim 2, wherein: the gasket is made of metal or insulating material.
7. The LED street lamp with the driving power supply isolated from the LED light source according to any one of claims 1 to 6, wherein: and a heat insulation material is arranged in the air gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020749247.4U CN212080965U (en) | 2020-05-09 | 2020-05-09 | LED street lamp with drive power supply isolated from LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020749247.4U CN212080965U (en) | 2020-05-09 | 2020-05-09 | LED street lamp with drive power supply isolated from LED light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212080965U true CN212080965U (en) | 2020-12-04 |
Family
ID=73568082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020749247.4U Active CN212080965U (en) | 2020-05-09 | 2020-05-09 | LED street lamp with drive power supply isolated from LED light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212080965U (en) |
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2020
- 2020-05-09 CN CN202020749247.4U patent/CN212080965U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240530 Address after: Room 216, No. 11 Hongtong Road, Jihongtan Street, Chengyang District, Qingdao City, Shandong Province, 266000 Patentee after: Palance Light Technology (Qingdao) Co.,Ltd. Country or region after: China Address before: 260000 No.17, Hongxiang 2nd Road, Jihongtan street, Chengyang District, Qingdao City, Shandong Province Patentee before: Sun Xiqing Country or region before: China |