CN101373060A

CN101373060A - LED road lamp

Info

Publication number: CN101373060A
Application number: CNA2007101433503A
Authority: CN
Inventors: 梁见国
Original assignee: Aeon Lighting Tech Inc
Current assignee: Aeon Lighting Tech Inc
Priority date: 2007-08-21
Filing date: 2007-08-21
Publication date: 2009-02-25
Anticipated expiration: 2027-08-21
Also published as: CN101373060B

Abstract

The invention is an LED streetlight, which comprises a radiator module and a completely sealed power supply. The radiator module comprises main module components such as a circuit board, LED lighting crystal grains and a radiation finned seat. With the help of the heat-dissipation finned seat as an outer cover for the streetlight, streetlight and the atmosphere space can in direct contact for radiating, and the heat temperature produced by the LED crystal grains and the circuit board can be directly transmited to a vertical tube so as to achieve double radiation effect. The heat source of the power supply is radiated on the vertical tube through a sealed casing of the power supply, thereby greatly increasing theradiation area, reducing the temperature, improving radiation efficiency, and preventing the power supply from being influenced by the outdoor environment and climates so as to prolong the service life of the LED circuit board, the LED lighting crystal grains and the power supply. The circuit board can be quickly assembled and disassembled on a radiation base, thereby increasing the convenience of assembling and disassembling the circuit board.

Description

A kind of LED street lamp

Technical field

What the present invention relates to is a kind of LED street lamp, what be particularly related to is that a kind of heat radiating fin bar that utilizes directly exposes to the open air in airspace as the outer cover of street lamp, and directly contact with airspace, also good to reach radiating effect, the LED street lamp that the service life of LED luminescent grain is durable.

Background technology

By the luminous street lamp of existing LED, typical structure such as Taiwan New Certificate number M303333 LED street lamp and radiating module package assembly, described case must be by a upper cover plate) conducting strip is covered, so, the heat-dissipating space of conducting strip is limited, can't contact with airspace, hot temperature concentrates within the upper cover body, causes the purpose that can't reach rapid heat radiation.Moreover heat pipe is that vertical cross-under is among demarcation strip and conducting strip, heat pipe only has short position as heating end, only described heating end contact is on the surface of temperature-uniforming plate, because the length of heating end is short, heating surface area, volume are little, thus be limited for the temperature of conducting strip from heat pipe heat conduction temperature, can't be at short notice a large amount of, reach the purpose of high efficiency heat radiation, so can't effectively promote the service life of LED lamp group.

Summary of the invention

Main purpose of the present invention is, a kind of LED street lamp is provided, in order to overcome above-mentioned technological deficiency.

For achieving the above object, the technical solution used in the present invention is, a kind of LED street lamp is provided, and it comprises:

By the radiating module that circuit board, LED luminescent grain and heat radiating fin bar are formed, as the light-emitting lamp of LED street lamp, wherein the heat radiating fin bar directly exposes to the open air in airspace, and directly contacts heat radiation with air;

Sealed power supply unit provides a power supply to use to circuit board and LED luminescent grain.

Beneficial effect of the present invention compared with the prior art is, at first, directly directly exposes to the open air in airspace as the street lamp outer cover by radiating fin, and directly contacts with airspace, and radiating efficiency is also promoted, and increase the service life of circuit board and LED crystal grain;

Secondly by the power supply unit of sealing fully, make power supply unit not be subjected to factor affecting such as outdoor environment weather and power supply unit, shell to form a heat sink, to promote the life-span of using;

Once more, the optional apparatus circuit board is modularized design, forms the circuit board of plural number, makes described circuit board combination dismounting at heat-radiating substrate just Kinetix fast;

At last, by U type heat pipe, it is connected the basal surface of circuit board with right straight tube, is connected in the heat radiating fin bar with left straight tube, the surface heat temperature of circuit board effectively can be come heat conduction by U type heat pipe to reach.

Description of drawings

Fig. 1 is the three-dimensional exploded view of other part of the present invention;

Fig. 2 is the exploded view of other part of the present invention;

Fig. 3 is a sectional drawing of the present invention;

Fig. 4 is equiped with the part three-dimensional exploded view in addition of U type heat pipe for the present invention;

Fig. 5 is equiped with the part sectional drawing in addition of U type heat pipe for the present invention;

Fig. 6 is the present invention's sectional drawing again;

Fig. 7 is equiped with the sectional drawing of U type heat pipe for the present invention;

The section action diagram that Fig. 8 is combined, dismantles for circuit board of the present invention;

The three-dimensional exploded view that Fig. 9 is connected with stand pipe for light fixture of the present invention;

The three-dimensional combination figure that Figure 10 is connected with stand pipe for light fixture of the present invention;

The sectional schematic diagram that Figure 11 goes into stand pipe inside for power supply unit device of the present invention.

Description of reference numerals: 10-heat-radiating substrate; The 101-groove; The 12-front end; The 14-rear end; 122,521,622-screw; 11,13,28,55,56,58,59,65,66,181-connecting hole; 281,53,551,57,571,66,572,251-bolt; The 16-upper surface; 18-base plate face; The 621-perforation; The 20-circuit board; The 21-outer surface; The 22-LED luminescent grain; The 23-inner surface; The 231-Heat Conduction Material; The 25-stator; The 26-draw-in groove; The 27-inner side edge; 29-first connector; 30-U type heat pipe; The 301-sealing surface; The last straight tube of 32-; The 34-lower straighttube; The 36-transverse tube; 40-heat radiating fin bar; The 41-fin; The 44-bottom; The 45-through hole; The 50-stand pipe; 50 '-transverse pipe; The 51-inner pipe joint; The 52-right side wall panel; 521,541-first locating slot; 522,542-second locating slot; 524,544-outer end; The 54-left side wall panel; Catch before the 550-; The 60-holder; The 62-pipe joint; The 65-shallow recess; 122,521,622-screw; The 70-conductive electric wire; 72-second connector; The 80-lampshade; The 90-power supply unit; The 91-shell; The 100-heat spreader module; W-ground.

The specific embodiment

Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.

As shown in Figure 1 and Figure 2, the present invention is promptly providing a kind of LED street lamp, comprising:

The heat spreader module of being made up of circuit board 20, LED luminescent grain 22 and heat radiating fin bar 40 primary clusterings 100 is as the light-emitting lamp of LED street lamp, and wherein heat radiating fin bar 40 directly exposes to the open air in airspace, and directly contacts heat radiation with air;

Sealed power supply unit 90 provides a power supply to use to circuit board 20 and LED luminescent grain 22.

As shown in Figure 9, sealed power supply unit 90 is to be fixed on the surface of a stand pipe 50 fully, described power supply is to be fixed on the surface of a stand pipe 50 for device 90, and described power supply unit 90 provides a power supply to use (as shown in Figure 1) to circuit board 20 by conductive electric wire 70.

As shown in figure 11, sealed power supply unit 90 is the hollow pipe inside that is fixed in hollow stand pipe 50 fully, and described power supply unit 90 provides a power supply to circuit board 20 (as shown in Figure 1) by conductive electric wire 70.

As shown in figure 10, sealed power supply unit 90 is embedded near the ground, stand pipe 50 belows fully, and described power supply unit 90 provides a power supply to circuit board 20 by electric wire 70.

As shown in Figure 1 and Figure 2, wherein heat spreader module 100, further comprise:

One heat-radiating substrate 10, its front end 12 is fixed in light fixture holder 60, and described light fixture holder 60 is by pipe joint 62 be connected with the transverse pipe 50 ' of stand pipe 50 upper ends (as shown in Figure 9);

Heat radiating fin bar 40 is welded to one another by the fin 41 of plural number to be formed, and to form the enclosing cover of street lamp, its bottom 44 is welded on the upper surface 16 of heat-radiating substrate 10;

At least be the LED luminescent grain 22 that is welded with at least more than one on the outer surface 21 of the above circuit board 20 of a slice, the above circuit board 20 of a slice is to be fixed on the base plate face 18 of heat-radiating substrate 10 (as shown in Figure 3) at least;

The lampshade 80 of one light-permeable is the below that is erected at circuit board 20.

Wherein the and arranged on left and right sides limit of light fixture holder 60 is connected with shape left side wall panel 54 and right side wall panel 52 roughly the same respectively, on the wall, is respectively equipped with first locating slot 521,541 and second locating slot 522,542 within the left and

right side wallboard

54,52;

The and arranged on left and right sides limit of heat-radiating substrate 10 is fixed on respectively in first locating slot 521,541;

The dual-side of lampshade 80 is fixed on respectively in second locating slot 522,542;

Catch 550 is the outer ends 524,544 that are fixed in left and

right side wallboard

54,52 before one, and the rear end 14 that is fixed in heat-radiating substrate 10.

The base plate face 18 of heat-radiating substrate 10 is the stators 25 that are fixed with at least more than one, makes and forms a draw-in groove 26 (as Fig. 7, shown in Figure 8) between stator 25 and the base plate face 18;

Side 27 snaps in the draw-in groove 26 within the circuit board 20, and the outboard end of circuit board 20 is provided with connecting hole 28, and bolt 281 is connected in the connecting hole 13 of connecting hole 28 and heat-radiating substrate 10.

As shown in Figure 1, an outboard end of circuit board 20 is fixed with the first connector 29 of a power supply property grafting;

It is connected with at least more than one second connector 72 electric wire 70, and described second connector 72 plugs with circuit board 20 first connectors 29.

As shown in Figure 9, the rear of light fixture holder 60 connects a pipe joint 62;

One hollow stand pipe 50 is as electric pole, the crooked transverse pipe 50 ' of its front end, the angle theta of described transverse pipe 50 ' and stand pipe 50 is greater than 90 °, the front end of transverse pipe 50 ' is provided with an inner pipe joint 51, during but inner pipe joint 51 cross-under were fixed within the pipe joint 62, electric wire 70 was guided in stand pipe 50 inner spaces by inner pipe joint 51 inner spaces.

Wherein surface 23 is to apply the base plate face 18 of one deck Heat Conduction Material 231 contacts at heat-radiating substrate 10 within the circuit board 20.

As shown in Figure 4, the surface of heat-radiating substrate 10 wherein is respectively equipped with one or more groove 101;

On the body of heat radiating fin bar 40, laterally offer at least more than one through hole 45;

U type heat pipe 30 more than at least one, every U type heat pipe 30 is by last straight tube 32, lower straighttube 34 and the transverse tube 36 one persons of one-tenth, wherein go up straight tube 32 grafting and go in the through hole 45 of heat radiating fin bar 40, lower straighttube 34 close fits are gone in the set grooves 101 in heat-radiating substrate 10 its surfaces.

As Fig. 7, shown in Figure 8, wherein two outer ends of U type heat pipe 30 are sealing surface 301.

As Fig. 9, shown in Figure 10, hollow stand pipe 50 is as an electric pole, the upper end transverse pipe 50 of stand pipe 50 ' be to be bent an angle, make whole stand pipe 50 and transverse pipe 50 ' integral body slightly be L type shape, transverse pipe 50 ' with directly to stand pipe 50 angle theta 1 greater than 90o, directly to stand pipe 50 bottoms are fixed on the W of ground, be fixed on the transverse pipe 50 ' whole group of heat spreader module 100 as shown in Figure 3, its be and horizontal line between be a tilt angle theta 2 and be the slightly state at the elevation angle, wherein pipe joint 62 is to have a perforation 621 and establish screw 622, inner pipe joint 51 be positioned at transverse pipe 50 ' the outer end, it is a pipe body (as shown in Figure 9), inner pipe joint 51 is that grafting is gone in the perforation 621, inner pipe joint 51 is provided with screw 521 simultaneously, bolt 53 is screwed into screw 122, in 521, further group heat spreader module 100 is put in order in order, holder 60 is fixed on the inner pipe joint 51 with pipe joint 62.

When LED luminescent grain 22 luminous temperatures of the present invention are not high, then the present invention do not need cross-under fixedly U type heat radiation conduit come auxiliary heat dissipation, therefore as Fig. 1, Fig. 2, shown in Figure 3, the upper surface 16 of heat-radiating substrate 10 is plane, heat radiating fin bar 40 is that the fin 41 by plural number is welded as a pedestal with tin material each other, every adjacent fin 41, (41) form the groove of heat-dissipating space between, the bottom 44 usefulness tin materials of fin seat 40 are welded on heat-radiating substrate 10 upper surfaces 16 that aluminum alloy materials is made, fin seat 40 is combined as a whole with heat-radiating substrate 10, the front end 12 of substrate 10 is provided with connecting hole 181, light fixture holder 60 is provided with connecting hole 65, as shown in Figure 2, bolt 572 is to be screwed into two connecting holes 65, in 181, substrate 10 is to be integrated as one with holder 60; The bilateral limit of substrate 10, be respectively equipped with connecting hole 11, a left side, right

side wall panel

54,52 are respectively equipped with connecting

hole

55,56, the bolt 57 of plural number is to be screwed into connecting

hole

55,56, in 11 (as shown in Figure 2), make the left side of substrate 10, right bilateral is fixed with a left side respectively, right

side wall panel

54,52, a left side, right

side wall panel

54,52 front end is respectively equipped with connecting

hole

58,59, the left side of holder 60, right bilateral limit is respectively equipped with connecting hole 66, (66), one group of bolt 571 is screwed into connecting hole 58 respectively, 59,66, (66) in, a left side, right

side wall panel

54,52 are fixed on the holder 60.

As shown in Figure 1, the second connector 72 of plural number is to be connected in respectively on the electric wire 70, second connector 72 can make up fast or dismantle at first connector 29, electric wire 70 is by perforation 621, further be guided in the inner space of stand pipe 50 (as shown in Figure 9), electric wire 70 is connected with power supply unit 90, and power supply unit 90 can be fixed on the surface of stand pipe 50 as shown in Figure 9, also can pre-buried as shown in figure 10 ground W in;

If the caliber of stand pipe 50 is bigger, power supply unit 90 also can be installed with in the inner space of stand pipe 50 as shown in figure 11.

As Fig. 4, shown in Figure 8, stator 25 is to be fixed on the basal surface of substrate 10 by bolt 251, to form a draw-in groove 26.

As shown in Figure 8, be meant that circuit board 20 can make up fast, dismantle outside the base plate face 18 of substrate 10, when circuit board 20 being done when also changing, as long as second connector 72 is extracted outside first connector 29, bolt 281 is taken out, then circuit board 20 is the taking-up that can be shifted from draw-in groove 26 again.As shown in Figure 8, in the time circuit board 20 will being incorporated into the base plate face 18 of substrate 10, be after snapping in side 27 within the circuit board 20 in the draw-in groove 26, again bolt 281 is locked connecting hole 28 admittedly, in 13, circuit board 20 is fixed on base plate face 18, again second connector 72 is plugged on first connector 29, then but the power supply conducting is gone in the circuit board 20, the base plate face 18 of its substrate 10 is to adhere to one deck Heat Conduction Material 231, Yin Qifei has stickiness, so circuit board 20 is can not stick on base plate face 18, just by the conductive force of Heat Conduction Material 231, the hot temperature that circuit board 20 is produced is able to be passed to substrate 10 fast, the Re Wende that substrate 10 is accepted dispels the heat by fin seat 40, dispelled the heat by airspace by fin seat 40, its excellent in heat dissipation effect further promotes service life of LED luminescent grain 22.As shown in Figure 3, substrate 10 is connected with preceding catch 550 with holder 60 left and

right side wallboards

54,52, therefore the hot temperature that absorbed of substrate 10 again can be through holder 60 and left and

right side wallboard

54,52 and preceding catch 550 dispel the heat (as Fig. 1, shown in Figure 3), especially holder 60 is to be connected transverse pipe 50 ', so the hot temperature that holder 60 is absorbed can be transmitted to transverse pipe 50 ', and be transmitted to stand pipe 50 (as shown in figure 10) by transverse pipe 50 ', to reach the effect of further heat radiation.

As shown in Figure 3, has an elevation angle angle θ 2 between whole group heat spreader module 100 and horizontal line, therefore when rainy, current flow to the rear by the groove in the fin seat 40, and flow out downwards in holder 60 rear surfaces, because fin seat 40 is all handled (antiacid alkali) through special anti-corrosion with pedestal 10, make fin seat 40, the effect of the pedestal 10 equal high acid and alkali-resistances of tool, to prevent the material loss, so the fin seat 40 of this case is not only alternative enclosing cover of existing street lamp, but also forming a radiator, flowing of current can rinse out the dust in fin seat 40 grooves 101 simultaneously.

As shown in Figure 4, be meant that the present invention can be chosen in cross-under U type heat pipe 30 in the fin seat 40 for further increasing radiating effect, lower straighttube 34 is that close fit is in groove 101, so the heat temperature that substrate 10 is absorbed is conducted at whole U type heat pipe 30 by lower straighttube 34, pass to fin seat 40 again, dispel the heat to airspace by fin seat 40 again, make radiating effect also good.

As Fig. 4, shown in Figure 5, before catch 550 be that bolt 551 by plural number is screwed onto respectively in the connecting

hole

58,59 of the rear end 14 of substrate 10 and left and

right side wallboard

54,52, in the time will dismantling lampshade 80, as long as catch 550 before removing earlier can outwards extract lampshade 80 second locating slots 522.

As shown in Figure 9, power supply unit 90 is designed to sealing state, can completely cut off in intrusion power supply unit 90 inside of moisture, rainwater, especially bad, the shell 91 of power supply unit 90 is made of aluminum alloy materials or other heat sink material, has heat radiation function, the heat generating component in the power supply unit 90 (not showing on the figure), can do heat conduction with shell 91 internal faces of power supply unit 90 by heat-conductive assembly (not showing on the figure) and contact, make the shell 91 of power supply unit 90 have heat sinking function concurrently.

To sum up, the effect that feature of the present invention reached, remarkable reaches, and the applicant offers application in accordance with the law.

The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.

Claims

1. LED street lamp, it is characterized in that: it comprises:

By the radiating module that main elements such as circuit board, LED luminescent grain and heat radiating fin bar are formed, as the light-emitting lamp of LED street lamp, wherein the heat radiating fin bar directly exposes to the open air in airspace, and directly contacts heat radiation with air;

2. LED street lamp according to claim 1 is characterized in that: described sealed power supply unit fully is fixed in the appropriate location of whole street lamp, and described power supply unit provides a power supply to use to circuit board by conductive electric wire.

3. LED street lamp according to claim 1 is characterized in that: described sealed power supply unit fully is the hollow pipe inside that is fixed in hollow stand pipe, and described power supply unit provides a power supply to circuit board by conductive electric wire.

4. LED street lamp according to claim 1 is characterized in that: described sealed power supply unit fully, be embedded near the ground, stand pipe below, and described power supply unit provides a power supply to circuit board by electric wire.

5. LED street lamp according to claim 1, it is characterized in that: described radiating module further comprises: a heat-radiating substrate is the center, its front end is fixed in the light fixture holder, and described light fixture holder is to be connected by the transverse pipe of pipe joint with the stand pipe upper end;

Described heat radiating fin bar is welded to one another by the fin of plural number to be formed, and to form the enclosing cover of street lamp, its bottom is welded on the upper surface of heat-radiating substrate;

At least be the LED luminescent grain that is welded with at least one on the outer surface of the circuit board more than a slice, the above circuit board of a slice is to be fixed on the base plate face of heat-radiating substrate at least;

The lampshade of one light-permeable is the below that is erected at circuit board.

6. LED street lamp according to claim 5, it is characterized in that: the and arranged on left and right sides limit of described light fixture holder, be connected with shape left side wall panel and right side wall panel roughly the same respectively, on the internal face of left and right side wallboard, be respectively equipped with first locating slot and second locating slot;

The and arranged on left and right sides limit of described heat-radiating substrate is fixed on respectively in first locating slot;

The dual-side of described lampshade is fixed on respectively in second locating slot;

Catch is the outer end that is fixed in the left and right side wallboard before one, and the rear end that is fixed in heat-radiating substrate.

7. LED street lamp according to claim 5 is characterized in that: the base plate face of described heat-radiating substrate is the stator that is fixed with at least more than one, makes and forms a draw-in groove between stator and the base plate face;

The inner side edge of described circuit board snaps in the draw-in groove, and its outboard end is provided with connecting hole, is connected by bolt in the connecting hole of described connecting hole and heat-radiating substrate.

8. LED street lamp according to claim 5 is characterized in that: an outboard end of described circuit board is fixed with the first connector of a power supply property grafting;

It is connected with at least more than one second connector one electric wire, and the first connector of described second connector and circuit board plugs.

9. LED street lamp according to claim 5 is characterized in that: the rear of described light fixture holder connects a pipe joint;

One hollow stand pipe is as electric pole, the crooked transverse pipe of its front end, the angle theta 1 of described transverse pipe and stand pipe is greater than 90 °, the front end of described transverse pipe is provided with an inner pipe joint, but described inner pipe joint cross-under is fixed in the inside of pipe joint, and electric wire is guided in the stand pipe inner space by the inner pipe joint inner space.

10. LED street lamp according to claim 5 is characterized in that: the inner surface of described circuit board is to apply the base plate face of one deck Heat Conduction Material contact at heat-radiating substrate.

11. LED street lamp according to claim 5 is characterized in that: the surface of described heat-radiating substrate is respectively equipped with one or more groove;

On the body of described heat radiating fin bar, laterally offer at least more than one through hole;

U type heat pipe more than at least one, every U type heat pipe is by last straight tube, lower straighttube and the transverse tube one person of one-tenth, wherein goes up straight tube and pegs graft in the through hole of heat radiating fin bar, the lower straighttube close fit is gone in the set groove in its surface of heat-radiating substrate.

12. LED street lamp according to claim 11 is characterized in that: two outer ends of described U type heat pipe are sealing surface.