CN204313167U - Road lamp cap - Google Patents

Abstract

The utility model provides a lamp holder for a street lamp, which comprises a lamp holder, a lampshade, a top cover, a reflector, an LED chip and a tension rod. Through the reflector, the first end of the tension rod is fixedly connected to the lamp holder, and the second end of the tension rod is fixedly connected to the top cover, wherein the lampshade is provided with a first protruding ring at the first end close to the top cover, and the lampshade is on the A second protruding ring is provided near the second end of the lamp holder, a first ring groove is provided on the bottom surface of the top cover, the first ring groove is located on the outermost side of the top cover, the first ring groove is provided with a first sealing ring, the first The protruding ring is set in the first ring groove and is interference fit with the first sealing ring, the lamp holder is provided with a second ring groove, the second ring groove is located at the outermost side of the lamp holder, and the second ring groove is provided with a second sealing ring, The second protruding ring is arranged in the second ring groove and interferes with the second sealing ring. It is not only convenient and easy to install and improves the rigidity, but also helps to improve the waterproof performance of the lamp head of the street lamp.

Description

Street lamp holder

technical field

The utility model relates to a lamp holder of a street lamp, in particular to a lamp holder of a street lamp installed with an LED luminous body.

Background technique

LED lights have the characteristics of long life and power saving, and have been widely used in recent years. With the successful development of high-power LED, it has been gradually applied to urban road lighting. At the same time, with the continuous implementation of the National Semiconductor Lighting Project, the National Development and Reform Commission's LED road lighting bidding project, and the LED street lamp project of ten thousand lights in ten cities, LED street lamps and other road lighting lamps have gradually become popular due to their advantages of high efficiency, energy saving, and high color rendering. Popularized and applied to urban ordinary road lighting.

At present, common street lights include light poles and LED street light lamp holders installed on the light poles. LED street light lamp holders include upper lampshades, lower lampshades, reflectors, lamp holders, LED light-emitting elements, power components and top covers. When assembling the lamp cap of the LED street lamp, after connecting the lamp holder, the lower lampshade, the upper lampshade and the top cover in sequence, since a complex connection structure needs to be set up between the various parts of the LED street lamp lamp cap, while ensuring its overall rigidity requirements, it is also necessary to To meet the requirements of waterproof performance, the overall structure of the lamp head of the LED street lamp is complicated, and the installation steps are cumbersome.

Contents of the invention

The purpose of the utility model is to provide a street lamp lamp holder with good sealing performance and high rigidity.

In order to achieve the purpose of the utility model, the utility model provides a street lamp cap, including a lamp holder, a lampshade, a top cover, a reflector, an LED chip and a tension rod, a power supply assembly is installed in the lampholder, and the lampshade is installed on the lampholder , the top cover is installed on the lampshade, the reflector is arranged in the lampshade, the LED chip is arranged in the lampshade and fixed on the top cover, the tension rod passes through the reflector, the first end of the tension rod is fixedly connected with the lamp holder, and the tension rod The second end is fixedly connected to the top cover, wherein the lampshade is provided with a first protruding ring at the first end close to the top cover, the lampshade is provided with a second protruding ring at the second end close to the lamp holder, and the bottom surface of the top cover is provided There is a first ring groove, the first ring groove is located on the outermost side of the top cover, the first ring groove is provided with a first sealing ring, the first protruding ring is arranged in the first ring groove and has an interference fit with the first sealing ring, the lamp The seat is provided with a second ring groove, the second ring groove is located on the outermost side of the lamp holder, the second ring groove is provided with a second sealing ring, and the second protruding ring is arranged in the second ring groove and has an interference fit with the second sealing ring .

It can be seen from the above scheme that by setting the convex rings on the upper and lower ends of the lampshade, by setting the ring grooves on the top cover and the slide grooves on the lamp holder, and by setting the sealing rings in an interference fit between the ring grooves through the convex rings, Under the action of the tension rod, the lampshade and the top cover are firmly fixed on the lamp holder. This installation method is not only convenient and easy to install, but also effectively improves the rigidity of the lamp head of the street lamp, and is also conducive to improving the sealing performance of the lamp holder of the street lamp. Effectively prevent water vapor from entering the lampshade during use.

A further solution is that the top cover is provided with a protective cover on the outward end surface, and the protective cover is provided with a connecting portion and a sealing portion, the connecting portion is arranged in the middle of the protective cover, the sealing portion is arranged on the outside of the connecting portion, and the sealing portion A third ring groove is provided, the connecting part is threadedly matched with the tension rod, the sealing part is adjacent to the top cover, and the third ring groove is provided with a third sealing ring in an interference fit manner.

It can be seen from the above that the sealing ring is provided with an interference fit in the third groove of the protective cover, which further improves the waterproof performance of the lamp cap of the street lamp.

A further solution is that the LED chip is provided with a plurality of light-emitting lamp beads facing the lamp holder, and the lamp head of the street lamp is also provided with a reflector, and the reflector is provided with a plurality of through holes, and the reflector is arranged on the LED chip, and each through hole covers Outside a glowing lamp bead.

It can be seen from the above that the reflection of light can be effectively increased through the reflector, and the brightness can be effectively improved.

A further solution is that the lamp holder is provided with a plurality of first positioning columns in the lampshade along the axial direction, and the plurality of first positioning columns are evenly distributed on the lamp holder along the circumferential direction; the first end of the reflector is outward along the circumferential direction A flange is extended, and the flange is provided with a plurality of first positioning holes, the flange is adjacent to the lampshade, the first positioning hole is set on the first positioning column, and the screw is fixedly installed in the first positioning column through the first positioning hole .

It can be seen from the above that through the positioning column arranged in the axial direction, the rotation of the lampshade and the reflector in the circumferential direction is effectively restricted, and then the reflector, the lampshade and the lamp holder are tightly pressed together by screws, which is conducive to improving the height of the lamp head of the street lamp. While the overall rigidity is high, its easy installation method is also conducive to improving production efficiency.

A further solution is that the reflector is provided with a positioning part in the middle, a conductive sheet electrically connected to the LED chip is provided on the end surface of the positioning part facing the lamp holder, a second positioning hole is provided through the positioning part, and the tension rod passes through the second positioning hole. Two positioning holes, the end surface of the reflector facing the top cover is fixedly installed with elastic pins electrically connected with the power supply assembly, and the elastic pins are electrically connected with the conductive sheet.

A further solution is that the positioning part is also provided with anti-fooling convex strips extending in the axial direction, and the end of the reflective member close to the reflector is provided with anti-fooling grooves in the axial direction, and the anti-fooling grooves cooperate with the anti-fooling convex strips .

A further solution is that a fixing frame is also installed in the lamp holder, the fixing frame is fixed in the lamp holder, the fixing frame is provided with a fixing hole, and the tension rod is fixedly matched with the fixing hole.

It can be seen from the above that the fixed cooperation between the reflector and the reflector, and the fixed cooperation between the fixed frame and the tension rod are conducive to further improving the overall rigidity of the lamp head of the street lamp. The setting of the anti-fooling convex strip further simplifies the installation.

A further solution is that an air guide hole is provided through the top cover, and the air guide hole is provided with an air valve.

It can be seen from the above that since the inside of the lampshade is sealed, the air in the lampshade will expand due to heat when the lamp holder of the street lamp is in operation, so it is necessary to install an air valve to balance the air pressure in the lampshade.

A further solution is that the top cover is provided with a plurality of cooling fins on the outward end surface.

A further solution is that a plurality of cooling fins are spirally distributed on the outward end surface of the top cover.

It can be seen from the above that since the LED chip is adjacent to the top cover, the waste heat generated by the LED chip can be effectively dissipated through the spirally distributed heat dissipation fins.

Description of drawings

Fig. 1 is a structural diagram of an embodiment of a lamp holder for a street lamp of the present invention.

Fig. 2 is an exploded view of an embodiment of the lamp holder of the street lamp of the present invention.

Fig. 3 is an exploded view of the top cover, the protective cover and the air valve part in the embodiment of the lamp holder of the street lamp of the present invention.

Fig. 4 is a cross-sectional view of an embodiment of a lamp cap of a street lamp of the present invention.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Detailed ways

Referring to FIG. 1 , FIG. 1 is a structural diagram of a lamp cap 1 of a street lamp. The lamp holder 1 of the street lamp includes a lamp holder 2, a lampshade 3 and a top cover 4. The fixed end of the lamp holder 2 is used to be fixedly connected with the lamp pole. The lampshade 3 is installed above the lamp holder 2. The cover 4 is installed above the lampshade 3 .

Referring to FIG. 2 , FIG. 2 is an exploded view of the street lamp base 1 . The middle part of the spherical lampshade 3 forms an accommodating cavity, and a reflector 5 is installed in the accommodating cavity of the lampshade 3, and the reflector 5 is arranged in a conical shape with both upper and lower ends open. The outer surface of the reflective member 5 is coated with reflective material, and the reflective member 5 is provided with a hollow cavity along the axial direction. A flange 51 is provided extending outward along the circumferential direction on the lower end of the reflector 5 , and a plurality of positioning holes 52 are penetratingly opened on the flange 51 , and the plurality of positioning holes 52 are evenly distributed in the circumferential direction along the circumferential direction. Two elastic pins 53 are arranged on the end surface of the reflector 5 facing the top cover 4 , and the two elastic pins 53 are respectively electrically connected to the positive and negative poles of the power supply through wires. On the end of the reflector 5 near the reflector 451 (see Figure 4), there is a fool-proof groove 54 extending axially. The fool-proof groove 54 is used to cooperate with the reflector 451 to prevent the positive and negative electrodes from being connected incorrectly. .

Referring to FIG. 3 in combination with FIG. 2 , FIG. 3 is an exploded view of the top cover 4 , the protective cover 41 and the valve member 42 . The top cover 4 is arranged in a disk shape, and a plurality of heat dissipation fins 43 are arranged on the outward end surface of the top cover 4. The plurality of heat dissipation fins 43 are arranged in a spiral shape with the center of the top cover 4 as the origin. A heat conduction groove for air circulation is formed between the heat dissipation fins 43 . A positioning hole 411 is provided at the center of the top cover 4 . The protective cover 41 is arranged in a cylindrical shape, and the protective cover 41 is arranged in the middle of the top cover 4 and covers the outside of the positioning hole 411 . An air guide hole 412 is provided on the outer periphery of the top cover 4 penetrating in the axial direction, and the air valve element 42 is installed in the air guide hole 412 .

Referring to FIG. 4 in combination with FIG. 2 , FIG. 4 is a cross-sectional view of the lamp cap 1 of the street lamp. The protective cover 41 is provided with a connecting portion 416 in the middle, and the connecting portion 416 is a blind hole arranged in the protective cover 41. An internal thread is provided on the inner wall of the blind hole, and the second end of the tension rod 7 is threadedly matched with the connecting portion 416. Fixed connection. The protective cover 41 is provided with a sealing part 413 along the circumferential direction outside the connecting part 416, and the sealing part 413 is provided with an annular groove. After the protective cover 41 is installed on the top cover 4, the sealing part 413 is adjacent to the top cover 4, and the sealing part 413 The space enclosed by the ring groove and the top cover 4 is provided with a sealing ring 414 in an interference fit manner.

The top cover 4 is provided with an LED chip 45 on the bottom surface facing the lampshade 3. The substrate of the LED chip 45 is adjacent to and fixed to the top cover 4. The substrate of the LED chip 45 is provided with a plurality of LED light-emitting lamp beads 46, and the plurality of LED light-emitting lamp beads 46 are evenly distributed on the LED chips 45 . A reflective plate 451 is fixedly connected to the LED chip 45. The reflective plate 451 is provided with a plurality of through holes, and each through hole is set outside an LED light-emitting lamp bead 46. The end surface of the reflective plate 451 facing the lamp holder 2 is coated with Has reflective material. The reflector 451 is provided with a positioning portion 453 in the middle, and a through hole is formed through the positioning portion 453 . A conductive sheet 452 electrically connected to the LED chip is provided on the end surface of the positioning portion 453 facing the lamp holder 2 , and the elastic pin 53 is electrically connected to the conductive sheet 452 . The positioning part 453 is also provided with a fool-proof protrusion 454 extending in the axial direction. The fool-proof groove 54 cooperates with the fool-proof protrusion 454 to prevent the elastic pin 53 from being electrically connected to the conductive sheet 452 when the polarity is wrongly connected. The middle part of the lamp holder 2 is also provided with a wire hole through which the wire is electrically connected to the power supply assembly, and a waterproof screw is also arranged on the wire hole.

The lampshade 3 is arranged in a spherical shape, and a hollow cavity is provided in the middle of the lampshade 3 , and a protruding ring 311 extends outward along the circumferential direction at the opening 31 of the lampshade 3 facing the top cover 4 . A ring groove 415 is arranged on the bottom surface of the top cover 4 towards the lampshade 3, the ring groove 415 is arranged on the outermost side of the top cover 4, the protruding ring 311 is arranged in the ring groove 415, and the space between the ring groove 415 and the protruding ring 311 A sealing ring 47 is provided with an interference fit.

The lamp holder 2 is arranged in a cup shape, and a recessed cavity is formed in the middle of the lamp holder 2, and a power supply assembly (not shown), a fixing frame 6 and a tension rod 7 are installed in the cavity. A ring groove 21 is provided on the lamp holder 2 , and the ring groove 21 is located at the outermost position of the lamp holder 2 . At the opening 32 of the lampshade 3 facing the lamp holder 2, a protruding ring 321 extends inward along the circumferential direction, and the protruding ring 321 is arranged in the ring groove 21, and a sealing ring is provided with an interference fit in the space between the ring groove 21 and the protruding ring 321 48.

The lamp holder 2 is provided with a plurality of positioning columns 22 extending in the axial direction, and the plurality of positioning columns 22 are evenly distributed in the circumferential direction of the lamp holder 2 , and each positioning column 22 is provided with a mounting hole. The positioning hole 52 of the reflector 5 is arranged above the mounting hole of the positioning column 22, and is fixedly installed in the mounting hole of the positioning column 22 through the positioning hole 52 by a screw, so that the flange 51 of the reflector 5 is adjacent to the lampshade 3 .

The fixing frame 6 is arranged in an arched shape. On both sides of the fixing frame 6, there are holes for installation and fixing at the installation position. In the middle of the fixing frame 6, a positioning hole is arranged axially through, and the lamp holder 2 is at the position corresponding to the installation position. The mounting holes are set accordingly, and the arch-shaped fixing frame 6 is mounted on the lamp holder 2, and fixedly installed in the mounting holes through the mounting positions by screws. After the tension rod 7 passes through the positioning hole 411 , the positioning portion 453 and the reflector 5 , the first end of the tension rod 7 is fixedly connected with the positioning hole of the fixing frame 6 through screw fit.

It can be seen from the above that the tension rod 7 is fixedly connected between the top cover 4, the protective cover 41 and the lamp holder 2, so that the lampshade 3 and the top cover 4 are firmly fixed on the lamp holder 2, and the reasonable structural layout can effectively improve the The overall structural rigidity of the street lamp lamp cap 1, and the use of the tension rod 7 to provide fastening force for the top cover 4, the protective cover 41, the lampshade 3 and the lamp holder 2, make the sealing ring 47 in the ring groove 415 and the sealing ring in the ring groove 21 The ring 48 can effectively prevent water vapor from entering the lampshade 3, thereby improving the waterproof performance of the lamp cap of the street lamp.

Claims (10)

1. road lamp cap, comprises

Lamp socket, is provided with power supply module in described lamp socket;

Lampshade, described lampshade is arranged on described lamp socket;

Top cover, described top cover is arranged on described lampshade;

Reflecting component, described reflecting component is arranged in described lampshade;

LED chip, described LED chip to be arranged in described lampshade and to be fixed on described top cover;

Stayed mast, described stayed mast is through described reflecting component, and the first end of described stayed mast is fixedly connected with described lamp socket, and the second end of described stayed mast is fixedly connected with described top cover;

It is characterized in that:

Described lampshade is provided with the first bulge loop at the first end near described top cover, and described lampshade is provided with the second bulge loop at the second end near described lamp socket;

The bottom surface of described top cover is provided with the first annular groove, and described first ring slot is in the outermost of described top cover, and described first annular groove is provided with the first sealing ring, described first bulge loop to be arranged in described first annular groove and with described first sealing ring interference fit;

Described lamp socket is provided with the second annular groove, and described second annular groove is positioned at the outermost of described lamp socket, and described second annular groove is provided with the second sealing ring, described second bulge loop to be arranged in described second annular groove and with described second sealing ring interference fit.

2. road lamp cap according to claim 1, is characterized in that:

The end face of described top cover is outwardly provided with over cap; described over cap is provided with connecting portion and sealing; described connecting portion is arranged on the middle part of described over cap; described sealing is arranged on the outside of described connecting portion; described sealing offers the 3rd annular groove; described connecting portion and described stayed mast threaded engagement, described sealing and described top cover adjoin, and described 3rd annular groove is provided with the 3rd sealing ring to interference fit.

3. road lamp cap according to claim 1, is characterized in that:

Described LED chip is provided with multiple electroluminescent lamp pearl towards described lamp socket, described road lamp cap is also provided with reflector, described reflector is provided with multiple through hole, and described reflector is arranged in described LED chip, and through hole described in each is enclosed within outside a described electroluminescent lamp pearl.

4. road lamp cap according to claim 3, is characterized in that:

Described lamp socket is provided with multiple first locating dowel vertically in described lampshade, and multiple described first locating dowel is circumferentially evenly distributed on described lamp socket;

The first end of described reflecting component has circumferentially extended outwardly flange, described flange offers multiple first locating hole, described flange and described lampshade adjoin, described first locating hole is arranged on the upper of described first locating dowel, and screw is fixedly installed in described first locating dowel through described first locating hole.

5. road lamp cap according to claim 4, is characterized in that:

Described reflector is provided with location division at middle part, described location division is provided with the conducting strip be electrically connected with described LED chip on the end face of lamp socket, described location division is penetratingly provided with the second locating hole, described stayed mast is through described second locating hole, described reflecting component is installed with the elastic contact pin be electrically connected with described power supply module on the end face of top cover, and described elastic contact pin is electrically connected with described conducting strip.

6. road lamp cap according to claim 5, is characterized in that:

Described location division is also provided with the fool proof raised line extended vertically, and described reflecting component offers fool proof groove vertically on the end of described reflector, and described fool proof groove coordinates with described fool proof raised line.

7. road lamp cap according to claim 1, is characterized in that:

Also be installed with fixed mount in described lamp socket, described fixed mount is arranged in described reflecting component, and described fixed mount is provided with fixing hole, described stayed mast and described fixing hole secure fit.

8. the road lamp cap according to any one of claim 1 to 7, is characterized in that:

Described top cover is penetratingly provided with gas port, and described gas port is provided with air valve part.

9. road lamp cap according to claim 8, is characterized in that:

The end face of described top cover is outwardly provided with multiple radiating fin.

10. road lamp cap according to claim 9, is characterized in that:

Multiple described radiating fin spirally distributes on the end face of described top cover outwardly.