KR101505830B1 - LED lamp assembly for roadlamp - Google Patents

Abstract

An LED lamp assembly of the present invention, which can prevent the deterioration of an LED due to heat, comprises: a head body unit having an internal space and an opening on the bottom, a housing member of which a unit lamp module fixing unit is formed on the edge of the opening unit, and cover members respectively coupled to both sides of the housing member; unit lamp module units coupled to the fixing unit of the housing member by a first coupling member; and a second coupling unit to couple the inner circumference of the housing member to a unit body unit of the unit lamp module unit, thereby improving heat radiation efficiency and being easy to be managed. Also, the LED lamp assembly of the present invention can improve heat radiation efficiency by manufacturing the housing member by using metal and increasing a heat radiation surface area and can prevent accidents due to falling of the unit lamp module unit by preventing the unit lamp module unit from being separated from the housing member in a state in which a set screw is loosened when separating the housing member from the unit lamp module unit.

Description

≪ Desc / Clms Page number 1 > LED lamp assembly for roadlamp &

The present invention relates to an LED lamp assembly, and more particularly, to an LED lamp assembly that is easy to assemble and maintain the unit lamp module unit and can be used as a security lamp such as a street lamp or a tunnel.

Generally, a streetlight is a lighting facility installed along the edge of a road for safety and security of street traffic. Such a streetlight is installed on a highway, a main road of a city area, a commercial district road, It is provided in a form suitable for it.

Therefore, the conventional street lamp is composed of a strut which is erected at a predetermined height on the ground surface of the roadside, an arm connected laterally to the strut, and a lamp assembly electrically connected to the arm and including a light source. Particularly, when the lamp assembly is installed with one of a mercury lamp, an incandescent lamp, a halogen lamp, etc., power consumption is relatively large. In view of this, recently, light emitting diodes (LEDs) having high brightness, reduced power consumption and long lifetime have been used as light sources for street lamps.

On the other hand, since the outdoor lighting device is exposed to the outside, requirements for airtightness, water resistance, dust resistance and heat dissipating are more strict than those of the indoor lighting device. In addition, since the LED has low heat resistance, a heat dissipating module is generally used to dissipate the heat generated by each LED.

On the other hand, power LEDs with higher luminance than high-brightness LEDs have recently been developed at the same power consumption, and the possibility of replacing high-brightness LEDs is increasing.

Power LEDs with power consumption of 2W have a problem in that when the temperature exceeds about 47 ° C, the light output is lowered, the wavelength is changed, and the color is changed. When the heat radiation treatment is insufficient, the LED is damaged within 1 hour .

  That is, when the temperature of the power LED is insufficient, the power resistance of the power LED is decreased. As a result, the electric resistance value is decreased. As a result, the amount of current flowing through the power LED is increased and the power consumption is increased.

Korean Patent Registration No. 0808266 (Feb. 20, 2008) discloses a light source including a plurality of power LEDs; A current limiter for limiting the amount of current flowing in the light source portion within a predetermined range; A heat dissipation unit for dissipating heat generated in the light source unit; And a body portion formed integrally with the heat dissipation portion and having the current limiter attached thereto, wherein a ratio of a surface area of the body portion to a power consumption of the light portion is 69 to 125.

Patent Literature No. 0754973 (Aug. 28, 2007) discloses a streetlight in which a four-sided convex body is integrally formed with four oblique planes except the center plane of the convex body, and a light source mounting board on which the LED is mounted is inclined have.

In addition, in Patent Registration No. 0880200 (Jan. 16, 2009), a street lamp having a plurality of LED modules is provided with a fixed portion of a heat sink connected to the case of the street lamp to extend the irradiation range by varying the irradiation angle of each LED module And a street lamp having a compartment for connecting the LED module and forming a block is posted. The conventional LED streetlight heat dissipation structure disclosed in Taiwan (ROC) Patent No. M272940 includes an upper base, an aluminum partition board, a plurality of LEDs, and a plurality of parallel And includes a heat sink.

In Patent Application No. 2007-0005327 (2007.02.02), in order to rapidly dissipate the heat generated by each LED module, an LED having an isothermal board with a heat pipe and an LED module By providing the assembly structure of the street light and the heat dissipation module, it has a structure that greatly improves the heat conduction and the heat dissipation function, and the LED is luminesced at a low temperature to prolong the life.

On the other hand, street lamps and security lamps can be designed to have various illuminances depending on the place of installation or height of installation, and the heat radiation characteristics should also be changed according to the illuminance of the LED. In view of this point, the conventional street lamp as described above has a problem that it is difficult to form a lamp assembly having a compatible heat dissipation characteristic by using a single housing, and thus the degree of design freedom can not be increased.

In addition, street lamps, methods, tunnels, etc. are supported by louvers or installed on the ceiling side of a tunnel, so maintenance and repair are difficult when an abnormality occurs in the lamp assembly. Particularly, in case of occurrence of abnormality of the unit LED module, since the assembly is to be removed in order to replace the module, there is a problem that the workability is relatively lowered in a state where it is installed in a ceiling of a lantern or a tunnel.

In addition, since the components of the conventional lamp assembly are not standardized, the parts are not smoothly supplied and maintained during maintenance.

The present invention has been made to solve the above problems and it is an object of the present invention to improve the heat transfer efficiency from the unit lamp module unit to the housing member to improve the heat radiation characteristic of the unit lamp module unit, And it is an object of the present invention to provide an LED lamp assembly which is easy to maintain.

It is another object of the present invention to provide an LED lamp assembly which can increase the degree of design freedom according to the implementation of illuminance by adjusting the number of unit lamp module units mounted on the housing member.

Another object of the present invention is to provide an LED lamp assembly in which parts constituting a lamp are standardized so that components can be collected smoothly during maintenance.

In order to achieve the above object, an LED lamp assembly according to the present invention includes a housing member having an inner space, an opening formed on a lower surface thereof, a housing member having a fixing part formed at an edge of the opening, and cover members coupled to both sides of the housing member. A head main body;

Unit lamp module units coupled to the housing member by the fixing portion of the housing member and the first engaging portion; And a second engaging portion for engaging the inner circumferential surface of the housing member with the unit body portion of the unit lamp module unit.

In the present invention, the second engaging portion may be provided on the unit body portion such that a plurality of heat-dissipating fins are spaced apart from each other on a side corresponding to the inner circumferential surface of the housing member, and the heat-dissipating fins are inserted into the inner circumferential surface of the housing member, So that heat can be transmitted to the housing member.

The plurality of coupling pins constituting the coupling part of the radiating fin and the radiating fin are formed in a plate shape. Further, the at least one heat radiating fin and the heat radiating fin lower joint are formed with coupling protrusions and coupling grooves, respectively, and further include a third coupling unit for providing a coupling force of the unit lamp module units when the radiating fins and the coupling pins are coupled.

The LED lamp assembly according to the present invention is provided with unit lamp module units which emit light with the same or different illuminance on the housing member to facilitate adjustment of the light emission illuminance for illumination and to generate heat from the unit lamp module unit toward the housing member Thereby improving the emission characteristics of the heat, thereby preventing the LED from being deteriorated by heat. The housing member is formed by cutting the extruded profile into a predetermined length, thereby reducing the manufacturing cost, and further improving the productivity.

In addition, the LED lamp assembly according to the present invention can prevent the unit lamp module from dropping upon separation from the housing member during maintenance, and can prevent a safety accident caused by falling of the unit RAM module.

1 is a side view showing a state in which an LED lamp assembly according to the present invention is installed,
FIG. 2 is an exploded perspective view of the streetlight lamp assembly shown in FIG. 1,
3 is a sectional view of an LED lamp assembly according to the present invention,
4 is a cross-sectional view illustrating the unit lamp module unit,
Fig. 5 is a perspective view illustrating the third coupling portion. Fig.

INDUSTRIAL APPLICABILITY The LED lamp assembly for a street lamp according to the present invention can easily adjust the luminous illuminance set by the combination of the unit lamp module units and can prevent the light emitting diode module from deteriorating by improving the heat radiation characteristics. An embodiment is shown in Figs.

The LED lamp assembly 10 for a streetlight and a crime prevention lamp according to the present invention is installed in a ridge or column 11 to irradiate light and includes a head body 20, A unit lamp module unit 40 coupled to the housing member 21 of the unit lamp module unit 40 by a first engaging part 50 and a unit lamp module unit 40 connected to the unit body part 41 of the unit lamp module unit 40, So that the heat generated from the unit lamp module unit 40 can be cut into the housing.

The LED lamp assembly constructed as described above will be described in more detail as follows.

The head main body portion 20 forms an outer frame of the LED lamp assembly and includes a housing member 21 and cover members 22 and 23 which are respectively coupled to both sides of the housing member 21. The lamp assembly has an inner space 21a and an opening 21b formed on a lower surface of the housing member 21. A unit lamp module fixing portion 21c is formed on both side edges of the opening 21b. A radiating fin coupling portion 61 is formed on an inner circumferential surface of the housing member 21 corresponding to the opening 21b. The housing member 20 constructed as described above is made of aluminum, and a profile formed by extruding molten aluminum or aluminum alloy may be cut to a predetermined length. The fixing portion 21c is formed by bending the edge of the opening portion 21b, that is, the edge of the opening portion 21b on the longitudinal direction side of the housing member, in a stepped manner. The bent portion is formed inside the inner space portion.

6 and 7 show another embodiment of the housing member. The same reference numerals as those in the above-mentioned embodiments indicate the same components.

Referring to FIG. 1, the fixing members 30 formed on the lower surface of the housing member 20 may have ribs 31 and 32 formed on their corresponding sides. An opening 21b may be formed between the ribs 31 and 32 constituting the fixing portion 30 and the projection fixing projections 31a and 32a may be formed on the opposite sides of the ends of the leads 31 and 32, May be formed. And a radiating fin coupling portion described later may be formed inside the corresponding housing.

3 and 4, the unit lamp module unit 40 is formed with bracket portions 42 for fixing to both sides of the unit body portion 41 of the plate shape, and the unit body portion 41, A circuit board 80 on which an LED 81 for illumination is mounted is provided on the lower surface side of the circuit board 80. A lens plate 82 provided with a lens portion for improving the light distribution characteristic of the LED 81 mounted on the circuit board 80 is installed in the unit body portion 41 so as to surround the circuit board. A plurality of radiating fins 44 for radiating heat generated from the LEDs 81 are provided at predetermined intervals on the upper surface of the unit body portion 41. The radiating fins 44 are provided with wires A partition wall portion 45 for partitioning the passage 45a may be formed. A connection portion 46 for connecting the heat dissipation fins 44 to each other may be installed on the side of the heat dissipation fin 44 that is drawn from the end side to the main body side. The unit lamp module unit 40 may further include a transparent cover for protecting the lens plate 82.

The first engaging portion 50 for fixing the fixing portion 21c of the housing member 20 and the unit lamp module units 40 is disposed on both sides of the unit main body portion 41 of the unit lamp module unit 40 And the fixing part 21c formed at the edge of the opening 21b of the housing member 20 is coupled with the set screw 51. [ The first engaging part 50 is not limited to the above embodiment but may be a hook or a toggle clamp for fixing the bracket part 42 of the unit lamp module unit 50 to the housing member.

Heat generated from the LED 81 of the unit lamp module unit 40 is transmitted to the housing member 21 by coupling the inner circumferential surface of the housing member 20 with the heat radiation fins 44 of the unit lamp module unit And the second coupling portion 60 is provided on the inner circumferential surface of the housing member 20 on the side corresponding to the radiating fins 44 of the unit lamp module unit 40, A portion 61 is formed. The radiating fin coupling portion 61 may be formed of coupling pins 61a protruding from the inner circumferential surface of the housing member 20. The space between the coupling pins 61a may be substantially equal to the thickness of the radiating fin 44 So that the radiating fins 44 can be coupled between the coupling pins 61a so that the housing member 21 and the unit lamp module unit 40 are coupled to each other. The coupling pin 61a constituting the radiating fin 44 and the radiating fin coupling portion 61 is formed in a plate shape and the radiating fin coupling portion 61 is formed integrally with the housing.

5, the coupling protrusions 71 and the coupling grooves 72 are formed in at least one of the heat radiating fins 44 and the coupling pins 61a so that the coupling between the heat radiating fins 44 and the coupling pins 61 And a third coupling unit 70 for providing a coupling force of the hourly lamp module unit.

7, a fitting groove 75 is formed in the inner surface of the housing member 20, and a fitting protrusion 76 is formed in the corresponding unit lamp module unit 40 have.

A ventilation hole 25 may be formed on both sides of the housing member 20. A barrier rib 26 may be provided on the side of the ventilation hole so as to block the entry of rainwater when the outside air flows, Is formed at a predetermined depth from the pores (25). The fixing portion 21c of the barrier rib 26 may be formed to correspond to a groove 27 formed by bending inward. The groove 27 may be formed with a discharge hole. The barrier ribs 26 may be formed in multiple stages. In this case, it is preferable that the rainwater piled up with the air introduced through the air vent is not introduced into the unit lamp module unit 40 side. As shown in FIG. 4, the vent hole 25 is formed in the side wall and the upper side adjacent to the vent hole. Inside the adjacent housing member 21 of the vent hole is partitioned from the internal space portion, A partition for partitioning the passages may be formed.

The operation of the LED lamp assembly according to the present invention will now be described.

The lamp unit 10 for a street lamp according to the present invention is provided with the unit lamp module units 40 continuously or discontinuously installed at the fixed portion of the housing member 21 as shown in Fig. The fixing unit 21c of the housing member 21 is fixed to the bracket part 42 by the set screw by the first engaging part 50 and the fixing part 21c of the housing member 21 is fixed by the set screw, The unit main body portion 41 of the unit lamp module unit 40 is formed by inserting the radiating fins 44 of the unit lamp module unit 40 between the engaging pins 61a of the pin engaging portion 61 by the unit 60. [ Is fixed to the housing.

Particularly, since at least one radiating fin 44 and the coupling pin 61a are provided with the third coupling portion 70, even if the first coupling portion is disassembled, the unit lamp module It is possible to prevent the unit 40 from being detached without applying an external force. Therefore, it is easy to perform maintenance by replacing the unit lamp module unit.

In the process of assembling the unit lamp module unit 40 as described above, the number of the unit lamp module units 10 may be adjusted to adjust the illuminance, or the unit lamp module units having a high or low union may be selected and assembled, You can fit it.

The LED lamp assembly 10 illuminates the surroundings by the light emitted from the LEDs of the unit lamp module units 40. [

In the process of irradiating light, the heat generated from each LED is transmitted to the unit body portion 41, and the heat thus transmitted is transmitted to the heat dissipation fins 44. And is transmitted to the housing member 21 which is in contact with the outside air through the coupling pin 61a coupled with the radiating fin, and is then discharged. 3, the radiating fin can be cooled by the outside air flowing through the air vent formed in the side surface of the housing member 20. [

Through this process, the heat generated from the LED is smoothly emitted to the outside.

As described above, the LED lamp assembly 10 of the present invention can provide a plurality of unit lamp module units to match the design roughness, thereby increasing the degree of freedom in designing and improving the heat dissipation characteristics can do. Further, the outside air can be circulated by the circulation passage formed by the cover member, and the heat radiating effect can be enhanced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

INDUSTRIAL APPLICABILITY The LED lamp module assembly for a street lamp of the present invention can be widely applied to a stage lighting, a floodlight for lighting a molding, a factory, a security lamp, an indoor lighting, and the like.

Claims (6)

A head main body part having an inner space part, an opening part formed on a lower surface thereof, a housing member having a unit lamp module fixing part formed at an edge of the opening part, and cover members coupled to both sides of the housing part;
Unit lamp module units coupled to the housing member by the fixing portion of the housing member and the first engaging member;
And a second coupling portion for coupling the inner peripheral surface of the housing member and the unit body portion of the unit lamp module unit,
Wherein the second coupling portion is provided in the unit body portion such that a plurality of radiating fins are spaced apart from each other on the side corresponding to the inner circumferential surface of the housing member, and the radiating fins are inserted into the inner circumferential surface of the housing member, And a heat dissipating fin coupling portion formed of coupling pins for allowing the heat dissipating fin to be transmitted to the heat dissipating unit. delete The method according to claim 1,
Wherein the at least one radiating fin and the coupling pin are formed with coupling protrusions and coupling grooves, respectively, and further include a third coupling unit that provides a coupling force of the unit lamp module unit when the radiating fin and the coupling pin are coupled. The method of claim 3,
And a partition wall member is provided between the radiating fins to form a wire passage. The method of claim 3,
Wherein the third coupling portion is formed with a coupling protrusion and a coupling groove on the radiating fin and the coupling pin, respectively. The method according to claim 1,
Wherein the unit lamp module unit includes brackets for fixing to both sides of the unit body, LEDs are installed on a lower surface of the unit body,
A plurality of heat dissipating fins for emitting heat generated from the LEDs are provided at predetermined intervals on the upper surface side of the unit main body portion and partition walls for partitioning a power path where electric wires are installed are formed between the heat dissipating fins, And a connecting portion for connecting the heat-radiating fins to each other is installed on a side where the heat-radiating fins are drawn from the side toward the main body side.

Images