KR100993181B1 - Led lamp - Google Patents

Abstract

PURPOSE: An LED lamp is provided to rapidly discharge heat generated from a printed circuit board and an LED module by combining a heat radiation unit with an end cap. CONSTITUTION: A pair of end caps(10) are made of heat conductive members. A socket unit(20) is fitted to the end cap. A heat radiation unit(30) is combined with a pair of end caps and includes a body and a rib. A guide holder is formed on the inner surface of the body to support a printed circuit board(40). The rib is protruded from the body. At least one LED module is mounted on the surface of the heat radiation unit. A tube receives the heat radiation unit. Both ends of the tube are fixed to the pair of end caps.

Description

LED Lamp {LED Lamp}

The present invention relates to an LED lamp, and more particularly to an LED lamp capable of omnidirectional light emission and easy adjustment of the output light amount.

Recently, LED lamps using Light Emitting Diodes (LEDs) have been developed. LED lamps have significantly lower power consumption than conventional lamps and have the same brightness or higher, and their lifespan is several times longer. Costs can also be greatly reduced, increasing usage.

Due to such high brightness, low power consumption and long life advantages, LED lamps are increasingly used in various fields such as street lights, indoor lighting, decorative lighting, or vehicle lighting.

In general, a conventional LED lamp is composed of a socket body, a housing coupled to the socket body, an LED module housed in the housing to emit light, and a heat dissipation block for dissipating heat generated from the LED module to the outside.

According to the conventional LED lamp, since the LED module is mounted in a state mounted on one printed circuit board, light is emitted only downward at an angle of 180 degrees or less. Therefore, there is a confusion as to whether the reflection shade should be installed, as well as the need to remove the existing reflection shade. In addition, since the angle at which light is emitted is small, there is a problem that the amount of output light is insufficient based on the size.

In addition, there is a problem that it is not easy to adjust the output light amount because one printed circuit board is used.

Accordingly, it is an object of the present invention to provide an LED lamp capable of omnidirectional light emission and having a sufficient output light amount compared to the size.

Another object of the present invention is to provide an LED lamp which is easy to adjust the output light amount.

According to one aspect of the invention, a pair of end caps made of a thermally conductive member; A socket unit fitted to the end cap such that a terminal protrudes forward; A heat dissipation unit having both ends coupled to the rear of each of the end caps and having a polygonal cross section; At least one LED module mounted on a surface of the heat dissipation unit; And a tube accommodating the heat dissipation unit therein and having a tube fixed at both ends to the end cap.

Preferably, the heat dissipation unit, the tubular body of the polygonal cross section formed with a guide holder for supporting the printed circuit board on each of the opposite side of the inside; And ribs projecting radially in the bent portion from the surface of the body.

Preferably, the amount of light output from the LED module, a) by modifying the cross-section of the heat dissipation unit by adjusting the number of polygons, or b) by adjusting the number of the LED module mounted on the heat dissipation unit, or c) The heat dissipation unit can be controlled by mounting an LED module mounted with a different number of LED elements.

According to another aspect of the invention, the end cap made of a thermally conductive member; A socket unit fitted to the end cap such that a terminal protrudes forward; A heat dissipation unit coupled to the rear of the end cap and having a polygonal cross section; At least one LED module mounted on a surface of the heat dissipation unit; And a bulb accommodating the heat dissipation unit therein and having a bulb coupled to the end cap.

Further, according to another aspect of the invention, a pair of end caps made of a thermally conductive member; A socket unit fitted to the end cap such that a terminal protrudes forward; A heat dissipation unit consisting of a pair of bodies to which the end cap is fitted and fixed, and a support to which both ends are coupled to the body and to which the LED module is mounted, and having a cylindrical shape by the arrangement of the support; And a tube accommodating the support therein and having both ends fixed to the body.

Preferably, the body has a cylindrical shape, a ring-shaped support plate is integrally formed along the edge in the opening on the support side in the body, a plurality of slits are formed along the circumferential direction of the support plate, both ends of the support May be inserted into the slit to be combined.

In addition, preferably, a pair of support brackets may be accommodated in the storage space formed by the support to be coupled to the support, and a printed circuit board having a converter mounted thereon may be mounted between the pair of support brackets. .

Preferably, the support is formed with a plurality of slits, the support bracket is a disc with a tip protruding at regular intervals along the edge, the tip is inserted into the slit of the support may be coupled to the support and the support bracket.

According to the above structure, heat generated from the printed circuit board and the LED module can be quickly released to the outside through the heat dissipation unit and the end cap exposed to the outside air.

In addition, the amount of light output from the lamp can be easily adjusted in various ways.

In addition, by removing the circuit board corresponding to a specific direction at all, it is possible to adjust the direction of the output light, it is possible to implement a lamp that emits light 360 degrees by mounting all the circuit board.

In addition, since the support for determining the arrangement of the LED module while supporting the LED module is dually supported by the support bracket and the body, stability can be maintained. Accordingly, it is possible to apply a thin aluminum plate as a support has the advantage that the weight is less than in the above embodiment.

In addition, by removing a part of the support as necessary, it is possible to easily and quickly reduce power consumption and to easily change the arrangement of the LED module.

In addition, the printed circuit board on which the converter or the like is mounted is stably fixed by the support bracket, and heat emitted from the printed circuit board can be efficiently discharged to the outside by the air flow flowing through the storage space formed by the support.

1 is an exploded perspective view showing an LED lamp according to an embodiment of the present invention.
FIG. 2 is an external view of the LED lamp of FIG. 1. FIG.
3 is an exploded perspective view showing an LED lamp according to another embodiment of the present invention.
4 (a) and (b) shows a coupling structure of the heat dissipation unit and the LED module constituting the LED lamp of FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

1 is an exploded perspective view showing an LED lamp according to the present invention, Figure 2 is an external view of the LED lamp according to the present invention.

End  cap( end cap , 10)

The end cap 10 is made of, for example, aluminum and consists of a single body 11.

The end cap 10 is, for example, a cylindrical shape with both ends open, and an accommodation space 11a is provided therein, and the jaw 12 is formed in the storage space 11a with a different diameter. The socket unit 20 is seated at (12).

In addition, a screw hole 13 is formed along the edge of the rear end face of the end cap 10 to be coupled with the heat dissipation unit 30 by the screw 15 to quickly transfer the heat transferred from the heat dissipation unit 30 to the outside. Sometimes released. In addition, a ring-shaped insertion groove 14 is formed outside the screw hole 13 formed in the rear end surface of the end cap 10 so that the end surface of the tube 60 is inserted.

Socket unit (20)

The socket unit 20 includes a seating portion 21, a stem portion 22, and a pair of pin plugs 23 protruding backward from the stem portion 22 constituting a single body.

An accommodating space 21a is formed inside the seating portion 21 so that a conductive wire (not shown) electrically connected to the pair of pin plugs 23 is connected to the printed circuit board 40.

The outer diameter of the seating portion 21 is formed to be larger than the outer diameter of the stem portion 22, and as described above, is seated on the jaw 12 of the end cap 10 in the difference portion.

Heat dissipation unit (30)

The heat dissipation unit 30 is made of a thermally conductive metal, such as aluminum, and consists of a polygonal tubular body 31 and a rib 32 protruding radially from the bent portion of the outer surface of the body 31. Here, a structure that does not selectively form the ribs 32 may be applied.

In this embodiment, since the body 31 has a hexagonal cross section, all six ribs 32 protrude. The height of the ribs 32 is not particularly limited, but may have a height that is in contact with the inner surface of the tube 60, for example.

In addition, the ribs 32 can prevent the luminance of the adjacent portions of the LED module 50 from being particularly increased by the mixing of the light emitted from the adjacent LED modules 50.

In the body 31 of the heat dissipation unit 30, a pair of guide holders 33 may be installed along the inner surface of the heat dissipation unit 30 so that the printed circuit board 40 may be fitted and fixed.

As described above, the body 31 and the end cap 10 of the heat dissipation unit 30 are coupled by screws 15, and for this purpose, a screw hole 34 is formed in the cross section of the rib 32 of the heat dissipation unit 30. ) Is formed.

Printed Circuit Board (40)

Various electronic products including an inverter are mounted on the printed circuit board 40. As described above, the printed circuit board 40 is fitted into and fixed to the guide holder 33 formed inside the body 31 of the heat dissipation unit 30.

According to this configuration, heat emitted from the electronic components mounted on the printed circuit board 40 is transferred to the body 31 of the heat dissipation unit 30 and is quickly discharged to the outside through the end cap 10.

LED  Module (50)

The LED module 50 is composed of a circuit board 51 and a plurality of LED elements 52 mounted on the circuit board 51.

According to the present invention, the LED module 50 is provided with a number corresponding to the number of polygons formed by the heat dissipation unit 30, the body 31 between the ribs 32 and the ribs 32 of the heat dissipation unit 30. Is installed on.

Installation of the LED module 50 may fix the circuit board 51 onto the body 31 of the heat dissipation unit 30 using, for example, a screw or a thermally conductive double-sided tape.

According to this configuration, the output light amount can be adjusted by mounting circuit boards 51 having different numbers of mounted LED elements 52 or by removing some circuit boards 51. In addition, when it is necessary to irradiate light only downward, the output light quantity can be adjusted by removing the circuit board 51 mounted in the part corresponding to upper direction.

Tube (60)

The tube 60 consists of a single body of transparent or translucent glass or plastic material, as described above, both ends of which fit into the insertion groove 14 of the end cap 10.

Hereinafter, the assembly and operation of the LED lamp having the above structure will be described.

First, the LED module 50 is mounted on the surface of the body 31 of the heat dissipation unit 30. Here, as described above, a screw is attached to the circuit board 51 of the LED module 50 to fix the body 31 of the heat dissipation unit 30, or heat-conductive double-sided tape and heat dissipation with the back surface of the circuit board 51 It can be attached and fixed between the surface of the body 31 of the unit 30.

Next, the printed circuit board 40 is fitted into the guide holder 33 formed in the storage space inside the body 31 of the heat dissipation unit 30.

As shown in FIG. 1, when the socket units 20 and 120 are inserted into the storage spaces of the end caps 10 and 110, the pin plugs 23 of the socket units 20 and 120 move forward of the end cap 10. It protrudes. Subsequently, in a state where the heat dissipation unit 30 is inserted into the tube 60, the end caps 10 and 110 and the heat dissipation unit 30 are inserted by inserting a screw 15 at the front side of the end caps 10 and 110. To combine. At this time, in the process of bonding, both end surfaces of the tube 60 is adjusted to fit in the ring-shaped insertion groove 14 formed in the end caps (10, 110).

Figure 2 shows the LED lamp is assembled as described above.

With respect to heat dissipation, heat generated from the printed circuit board 40 and the LED module 50 may be quickly discharged to the outside through the heat dissipation unit 30 and the end caps 10 and 110 exposed to the outside air.

With respect to the output light amount, the number of polygons of the heat dissipation unit 30 can be reduced or increased, so that the output light amount can be adjusted by reducing or increasing the number of LED modules 50 mounted on the heat dissipation unit 30. In addition, while maintaining the heat dissipation unit 30, the amount of output light can be increased or decreased by adjusting the number of LED modules 50 to be mounted. Finally, by mounting the LED module 50 is mounted with a different number of LED elements it is possible to increase or decrease the output light amount.

In addition, by removing the circuit board corresponding to a specific direction at all, it is possible to adjust the direction of the output light, it is possible to implement a lamp that emits light 360 degrees by mounting all the circuit board.

In the above embodiment, a pin plug type socket unit is applied, but if necessary, a screw type socket may be applied. In this case, only one socket unit may be applied, and a tube may have a bulb shape in which one end is closed.

Figure 3 is an exploded perspective view showing an LED lamp according to another embodiment of the present invention, Figure 4 (a) and (b) shows a coupling structure of the heat dissipation unit and the LED module constituting the LED lamp of FIG.

In the above embodiment, since the heat dissipation unit 30 is composed of a single body 31, the arrangement of the LED module 50 has a predetermined shape, for example, a hexagonal structure in FIG.

3, the heat dissipation unit includes a plurality of supports 154 for supporting the LED module 150 and a body 153 for fixing both ends of the support 154 and accommodating the printed circuit board 160 therein. Is done. Preferably, each support 154 may be further supported, and may further include support brackets 164 and 165 for supporting both ends of the printed circuit board 160.

The pair of bodies 153 have a substantially cylindrical shape, and end caps 20 and 120 are fitted into and fixed to each other, and are made of a material such as aluminum having good thermal conductivity. A ring-shaped support plate 155 is integrally formed along the edge of the opening in the side where the LED module 150 is disposed in the body 153, and a plurality of slits 155a are formed along the circumferential direction of the support plate 155. Is formed.

Referring to FIG. 4A, six supports 154 are prepared, and each support 154 is provided with a pair of slits 154a extending in the width direction, and both ends thereof have roughly inverted triangular protrusions ( 156 is integrally formed.

The pair of support brackets 164 and 165 have a through-hole 166 formed in the center of a disc shape, and have a tip 167 from the edge corresponding to the slit 155a of the support plate 155 of the body 153. It protrudes.

Hereinafter, the assembly of the heat dissipation unit and the LED module 150 having the structure as described above will be described.

First, the necessary number of supports 154 is provided. For example, when the LED module 150 is to be arranged in a hexagon, six supports 154 are prepared. Here, the LED module 150 is mounted on the support 154, the LED module 150, as described above, the LED module 150 is a plurality of mounted on the circuit board 151 and the circuit board 151 LED element 152.

In addition, a pair of support brackets 164 and 165 for supporting the support 154 therein are prepared. Here, the support brackets 164 and 165 select brackets having the same number of tips 167 as the number of supports 154.

Both ends of the printed circuit board 160 are inserted into the through holes 166 of the prepared support brackets 164 and 165 to fix the printed circuit board 160, and each tip 167 of the support brackets 164 and 165 is supported. It fits into the slit 154a formed in the 154.

Subsequently, the protrusions 156 formed at both ends of the support 154 fixed to the support brackets 164 and 165 are fitted to the slits 155a formed on the support plate 155 of the body 153 of the heat dissipation unit. As described above, the protrusion 156 is hardly dislodged once inserted into an approximately inverted triangle.

Since the assembly is completed as described above, the support 154 for determining the arrangement of the LED module 150 while supporting the LED module 150 is supported by the support brackets 164 and 165 and the body 153 in duplicate. Can be stable. Accordingly, a thin aluminum plate can be applied as the support 154, so that the weight is less than that of the above-described embodiment.

In addition, by removing a part of the support 154 as necessary, it is possible to easily and quickly reduce the power consumption and to easily change the arrangement of the LED module 150.

In addition, the printed circuit board 160 on which the converter or the like is mounted is stably fixed by the support brackets 164 and 165, and heat emitted from the printed circuit board 160 flows through the storage space formed by the support 154. It can be discharged to the outside efficiently by the air flow.

In this embodiment, the case where the printed circuit board 160 is applied is taken as an example, but the printed circuit board 160 may be installed outside, and in this case, the support bracket 153 may be omitted.

Although the above has been described with reference to the preferred embodiment of the present invention, various changes and modifications can be made at the level of those skilled in the art, and such changes and modifications should be interpreted as belonging to the present invention without departing from the scope of the present invention.

10: end cap
20: socket unit
30: heat dissipation unit
40: printed circuit board
50: LED module

Claims (8)

A pair of end caps made of a thermally conductive member;
A socket unit fitted to the end cap such that a terminal protrudes forward;
A heat dissipation unit having both ends coupled to the rear of each of the end caps and having a polygonal cross section;
At least one LED module mounted on a surface of the heat dissipation unit; And
Receiving the heat dissipation unit therein, both ends include a tube fixed to the end cap,
The heat dissipation unit,
A tubular body having a polygonal cross section in which guide holders supporting printed circuit boards are formed on respective opposite sides of the inside; And
LED lamp, characterized in that it comprises a rib protruding radially in the bent portion on the surface of the body. delete The method according to claim 1,
The amount of light output from the LED module,
a) by modifying the cross section of the heat dissipation unit by adjusting the number of polygons, or
b) by adjusting the number of the LED module mounted on the heat dissipation unit, or
c) LED lamp, characterized in that to adjust by mounting the LED module mounted with a different number of LED elements in the heat dissipation unit. delete A pair of tubular end caps made of a thermally conductive member;
A socket unit fitted to the end cap such that a terminal protrudes forward;
A heat dissipation unit consisting of a pair of bodies to which the end cap is fitted and fixed, and a plurality of supports coupled to both ends of the body and mounted with an LED module, and constituting a cylindrical shape by the arrangement of the supports; And
Receives the support therein, and includes a tube fixed at both ends to the body,
LED lamp, characterized in that the printed circuit board mounted with a converter is installed in the cylindrical shape formed by the disposed support. The method according to claim 5,
The body has a cylindrical shape, a ring-shaped support plate is integrally formed along the edge of the opening on the support side in the body, a plurality of slits are formed along the circumferential direction of the support plate,
Opposite ends of the support are fitted to the slit and coupled to the LED lamp. The method according to claim 5,
A pair of support brackets are accommodated in the inner storage space formed by the support to be coupled to the support,
LED lamp, characterized in that the printed circuit board is mounted between the pair of support brackets. The method according to claim 7,
The support is formed with a plurality of slits,
The support bracket is a disc with a tip protruding at regular intervals along the edge, the tip is inserted into the slit of the support, the LED lamp, characterized in that the support and the support bracket is coupled.

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