KR101711019B1 - Common use streetlight replacement easy of led - Google Patents

Abstract

The present invention relates to a common use streetlight capable of easily replacing an LED, and more particularly, to a common use streetlight capable of easily replacing an LED, for simply and easily performing replacement and repair operations by the breakdown and damage in the LED and preventing the difficulty of smoothly transmitting heat generated in an LED module to a heat sink due to a separation between the heat sink and the LED module by the degradation of elastic force of a combination pin due to repeated contraction and relaxation or a temperate change. The common use streetlight includes a plurality of LED modules, the heat sink which includes a fixing unit and a partition unit, a case which is connected to the heat sink and has a receiving groove, an enlargement lens which enlarges an emission range of light emitted from the LED module, a fixing member which is connected to the heat sink, a diffuser sheet, and a detaching means.

Description

{COMMON USE STREETLIGHT REPLACEMENT EASY OF LED}

The present invention relates to a common street light which is easy to replace an LED in an electrical technical field of a apartment house. More particularly, the present invention can easily and easily perform replacement and repair work due to failure or breakage of the LED, Which can be easily replaced with an LED for preventing the heat generated from the LED module due to the separation between the heat sink and the LED module from being transferred smoothly to the heat sink due to the change in the elasticity of the coupling pin due to the repeated or contraction and relaxation, .

In general, streetlights are lighting fixtures along the street for safety and security of street traffic.

Such a streetlight is installed in a highway, a main road of a city area, a commercial district road, and a housing district road, and is provided in a form suitable for the place where it is installed. The streetlight is provided at a predetermined height on the road surface, And a light source electrically connected to the arm.

In addition, a conventional street light includes an upper case coupled to an arm and disposed at a lower portion of the upper case, a socket provided at one side of the upper case to electrically connect the light source, and a light source coupled to an inner surface of the upper case, And a transparent cover which is coupled to the upper case to protect the light source and transmit the light.

However, since the conventional streetlight indirectly illuminates the surroundings through the reflector, the light is liable to scatter, and the range of illumination is widened by the scattered light, but there is a disadvantage in that the light efficiency is lowered because the illuminance is lowered. There is a problem that power consumption is large.

As a conventional technique in which such a problem is partially improved, Korean Patent Registration No. 10-0880200 (February 02, 2009) discloses a street light using an LED module.

However, the streetlight using the conventional LED module is separated from the heat sink and the LED module due to temperature change, repeated shrinkage and relaxation of the elastic force of the engagement pin due to relaxation, so that heat generated in the LED module can be smoothly dissipated through the heat sink .

Korea Patent Registration No. 10-0880200 (Feb. 2, 2009) 'Street light using LED module'

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a liquid crystal display device capable of easily and easily performing replacement and repair operations due to failure and breakage of an LED, The present invention provides a public streetlight in which an LED can be easily replaced to prevent a heat generated in an LED module due to a gap between a heat sink and an LED module from being smoothly transmitted to a heat sink due to a decrease in elastic force of the joining pin due to relaxation.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an electronic device comprising: a plurality of LED modules including a PCB having a plurality of LEDs mounted thereon; A plurality of light emitting diodes (LEDs), each of which is connected to a corresponding one of the plurality of LED modules, A heat radiating plate formed to be bent in different directions to form light irradiation directions different from each other; A case connected to the heat sink and having a receiving groove formed at a corresponding position of the LED module and having a bending angle corresponding to the dividing portion; An extension lens protruding from the receiving groove of the case to extend an irradiation range of light irradiated from the LED module and having an enlarged groove formed on a contact surface with the LED module; A body coupled to the heat dissipating plate and having an irradiation hole bent at a position corresponding to the forming angle of the receiving groove at a position corresponding to the dividing section, and an anchoring part mounted on the inner side of the body, absence; A diffuser sheet arranged between the face portion and the extension lens; And a detachment means for detaching and coupling the LED module and the fixing portion, wherein the fixing portion is formed as an annular step for separating and coupling the LED module and the fixing portion, First and second coupling grooves formed radially to correspond to the LED module and the step, A coupling pin inserted from the outside of the first and second coupling grooves; A seating groove formed in the inside of the second coupling groove; A resilient piece formed by bending the front end of the engaging pin and inserted into the seating groove with elasticity; And an opening that is connected to a rear end of the coupling pin and is protruded outside the first coupling groove and which, when the both ends are pressed, ensures separation of the first and second coupling grooves and the coupling pin, To prevent the heat generated in the LED module due to the separation between the heat sink and the LED module from being transmitted to the heat sink smoothly by binding the coupling pin to the LED module and the step, And a plurality of through holes through which the elastic pieces extend are formed, wherein the binding holding portion extends inwardly from the outside with respect to each of the binding projections, and the binding holding portion has a hollow A coupling plate coupled to the outside of the LED and having an upper surface in contact with the PCB; A plurality of coupling protrusions extending upward from an upper surface of the coupling plate and fitted into the first and second coupling grooves; And a coupling unit detachably coupling the coupling plate to the PC, wherein the coupling unit includes first and second coupling members disposed to face each other with respect to the coupling plate and the PCB, The present invention provides a common street lamp which can be easily replaced with an LED.

According to the present invention, replacement and repair work due to failure and damage of the LED can be easily and easily performed.

Further, there is an effect that the heat generated in the LED module due to the separation between the heat sink and the LED module can not be smoothly transferred to the heat sink due to temperature change, repeated shrinkage, and relaxation of the elastic force of the engagement pin due to relaxation .

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

FIG. 1 is an exploded perspective view showing a common street lamp in which an LED according to the present invention can be easily replaced.
FIG. 2 is a cross-sectional view illustrating a common street lamp in which the LED according to the present invention can be easily replaced.
FIG. 3 is a perspective view illustrating a heat sink in a common streetlight where replacement of the LED according to the present invention is easy.
FIG. 4 is a cross-sectional view showing an extension lens in a common street lamp in which the LED according to the present invention can be easily replaced.
FIG. 5 is a cross-sectional view showing a detachment means in a common streetlight where replacement of the LED according to the present invention is easy.
6 is a cross-sectional view showing a state in which a binding holding part is provided in a common street lamp in which the LED according to the present invention can be easily replaced.
FIG. 7 is an exploded perspective view showing a state of engagement of the binding holding part in a common street lamp in which the LED according to the present invention can be easily replaced.
And
FIG. 8 is a perspective view showing another example of the coupling protrusion in the common street lamp in which the LED according to the present invention can be easily replaced.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And should not be construed as limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

It should be understood that the embodiments according to the concept of the present invention are not limited to the particular mode of disclosure but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

The present invention utilizes the same as described in the above-mentioned Japanese Patent Application No. 0880200, and therefore all of the features of the device configuration described below can be understood as those described in Patent Registration No. 0880200.

However, the present invention is not limited to the structure disclosed in the above-mentioned Japanese Patent No. 0880200, in which a street light using an LED module is replaced with a common street light that can be easily replaced with an LED, a structure for binding the coupling pin to the LED module and the step, Which is the most important constituent feature.

Therefore, the device structure, characteristics and operation relationship described below will be incorporated by reference in the above-mentioned Japanese Patent Application No. 0880200, and the structure related to the main features of the present invention will be described in detail at the rear end.

1 to 5, a common streetlight which can be easily replaced with LEDs according to the present invention includes a plurality of LED modules 10 including a PCB 12 having a plurality of LEDs 14 mounted thereon, The LED module 10 includes a fixing part 22 to which the LED module 10 is coupled and a partition 24 connected to the fixing part 22 to form a block. A heat dissipating plate 20 formed to be bent in different directions so as to form different light irradiation directions of the LED module 10 coupled to the fixing portion 22, A case 30 having a receiving groove 32 formed at a corresponding position of the LED module 10 and having a bent angle corresponding to the dividing portion 24; So that the irradiation range of the light irradiated from the LED module 10 is extended An expansion lens 40 having a diffusion groove 42 formed in a contact surface with the LED module 10 and an extension lens 40 connected to the heat dissipation plate 20, A body 52 having an irradiation hole 56 bent in accordance with a forming angle and a fixing member 54 including a fixing portion 54 mounted on the inner side of the body 52, A diffuser sheet 60 arranged between the lens unit 54 and the extension lens 40 and a diffuser sheet 60 disposed between the lens unit 54 and the extension lens 40 for detachably attaching the LED module 10 to the fixing unit 22. [ (70).

The fixing part 22 is formed as an annular step 22a and the attaching and detaching means 70 includes first and second coupling grooves 22a formed radially to correspond to the LED module 10 and the step 22a, 72, 74, a coupling pin 76 inserted from the outside of the first and second coupling grooves 72, 74, a seating groove 72a formed inside the first coupling groove 72, A resilient piece 76a formed by bending the front end of the engaging pin 76 and inserted into the seating groove 72a with elasticity and an elastic piece 76b connected to a rear end of the engaging pin 76, And an opening piece 76b that protrudes outside the first and second coupling grooves 72 and 74 and separates the coupling pin 76 from each other when the both ends are pressed.

2 and 5, the LED module 10 includes a PCB 12 on which a plurality of LEDs 14 are mounted, and the PCB 12 is mounted on the detachment means 70 So that the ease of separation and connection of the LED module 10 can be ensured.

The PCB 12 has a pattern for flowing a current to a plurality of LEDs 14 mounted thereon and a metal material having a good thermal conductivity so as to efficiently transmit heat generated from the LEDs 14 to the heat sink 20. [ .

The plurality of LEDs 14 are mounted on the upper portion of the PCB 12 and are formed to emit light of the same or different colors.

As shown in FIGS. 1 to 5, the heat dissipating plate 20 is formed by bending adjacent partition sections 24 of the partition sections 24 in different directions so as to extend the irradiation range of the LED module 10 desirable.

This is to extend the irradiation range of the LED module 10 so that the light irradiation directions of the LED module 10 coupled to the fixing portion 22 are different from each other.

The fixing part 22 is integrally formed on the entire surface of the heat sink 20 and has an annular step 22a protruding inward of the heat sink 20. The PCB 12 is coupled to the heat sink 20. [

The partition (24) is connected to each of the fixing portions (22) to form a block.

The partitioning part 24 is formed by bending the partitioning parts 24 adjacent to each other of the partitioning part 24 to extend the irradiation range of the LED module 10 in different directions, (24) is formed so as to form an angle of 5 to 15 degrees with respect to the longitudinal adjacent line.

At the same time, the adjacent partition sections 24 are formed so as to form an angle of 10 to 20 degrees with respect to the transversely adjacent line, so that the partition sections 24 to which the LED modules 10 are coupled It is possible to extend the irradiation range of the LED module 10 by being formed so as to illuminate different directions.

In addition, since the partitioning portions 24 adjacent to each other in the partitioning portion 24 are bent as described above, the height of the adjacent partitioning portions 24 is different, and the extension of the irradiation range of the LED module 10 can be effectively performed Can be maximized.

Therefore, since the blocks formed by the partition 24 differently form the irradiation angles directed to each other, the irradiation range by the LED module 10 is maximized, so that the safety of the pedestrian at night and the night driving It is possible to prevent a safety accident by calling attention of the driver at the time.

A plurality of heat dissipating vanes 26 are protruded from the back surface of the heat dissipating plate 20 to more efficiently discharge the heat generated from the LED module 10, It is possible to increase the heat radiation efficiency by enlarging the area.

The heat radiating plate 20 and the heat radiating vane 26 are preferably formed of a material having a high thermal conductivity.

When a material such as aluminum having a high thermal conductivity is used, it is needless to say that it is possible to prevent not only the thermal conductivity but also the corrosion of the street lamp due to moisture.

1, the case 30 is connected to the heat sink 20 and has a bending angle corresponding to the partition 24 at a corresponding position of the LED module 10, .

The receiving grooves 32 are formed in the same number corresponding to the LED module 10 and the case 30 is bent according to the bending angle formed by the partition 24 of the heat sink 20. [

Accordingly, the receiving groove 32 is bent according to the bending angle formed by the case 30.

As shown in FIGS. 1, 2, and 4, the extended lens 40 protrudes out of the receiving groove 32 to diffuse the light emitted from the LED module 10 and increase the illuminance.

The extension lens 40 is arranged on the PCB 12 of the LED module 10 on one side so as to collect the light emitted from the LED module 10, It is preferable that the aspherical shape is a hemispherical shape or an elliptical shape.

Accordingly, the incident light has a divergence angle of 90 degrees with respect to the center of the extended lens 40, and the light is diffused at an angle of 45 degrees to the left and right with respect to the central vertical line, .

The extended lens 40 may further include a diffusion groove 42 formed in a contact surface with the LED module 10 so as to form an irradiation range of a wider angle, thereby maximizing the extension of the irradiation range.

The extended lens 40 is disposed to protrude out of the irradiation hole 56 and is provided with an irregular pattern portion (not shown) for preventing a phenomenon of glare (glare) 44 are formed on a contact surface in contact with the LED module 10.

The irregular pattern portion 44 is for refracting and scattering the light irradiated from the LED module 10 and may be formed by pressing fine grains through which light is transmitted.

1 and 2, the fixing member 50 is connected to the heat sink 20 and bent at a position corresponding to the partition 24 according to the forming angle of the receiving groove 32 A body 52 having an irradiation hole 56 formed therein and a mounting portion 54 to which the extension lens 40 is mounted and which is coupled to the inside of the body 52.

The fixing member 50 has a coupling hole 53 at both sides of the body 52 and a corresponding coupling hole 28 corresponding to the coupling hole 53 is formed in the heat sink 20, The corresponding coupling holes 28 are protruded from the heat sink 20.

The corresponding engagement hole 28 may be formed with a thread on the inner side and fastened by the fastening bolt 58 or may be fastened by a fastening pin or the like.

The irradiation hole 56 is formed at a position corresponding to the partition 24 according to the forming angle of the receiving groove 32.

The body 54 is formed in the shape of a disk and has a fixing groove 54a formed radially outwardly therefrom and the body 52 is formed on the rear surface thereof with a fixing groove 54a corresponding to the fixing groove 54a of the fixing portion 54 A corresponding fixing groove 52a is formed so that the fixing groove 54a and the corresponding fixing groove 52a are fastened and fixed with a fastening bolt 58. [

The extension lens 40 is formed in a substantially cone shape and an annular fixing rim 40a is formed on the opposite side of the vertex of the cone-shaped extension lens 40 so that the extension lens 40 The fixing rim 40a of the extended lens 40 is positioned on the periphery of the irradiation hole 56 which is the rear surface of the body 52. When the fixing ring 40a of the extended lens 40 is coupled to the body 52, And the fixing groove 54a of the notched portion 54 is coupled to the corresponding fixing groove 52a of the body 52 by the fixing bolt 58 so that the extended lens 40 is fixed (50).

1 and 2, the diffuser sheet 60 is arranged between the inner surface 54 of the fixing member 50 and the extended lens 40, and the diffuser sheet 60 is formed of a ferrite a bead as a lump of ferrite scatters light radiated from the LED 14 to expand the irradiation range.

That is, when the diffuser sheet 60 is used, the light emitted from the LED module 10 is scattered by the surface light source having a more uniform brightness, so that a planar light source with more uniform brightness can be obtained.

In this case, when the prism sheet 80 is arranged in front of the extended lens 40, the light emitted from the initial light source is changed to the front light. It is possible to increase the illumination efficiency of the streetlight when the diffuser sheet 60 and the prism sheet 80 are used at the same time.

As shown in FIG. 5, the detachment means 70 assures ease of separation and connection between the LED module 10 and the fixing portion 22.

The detachment means 70 ensures ease of separation and coupling between the LED module 10 and the heat sink 20 so that some of the LEDs 14 mounted on the PCB 12 are damaged And replacement or repair work in the LED module 10 can be more easily and easily performed when repair or replacement is required.

The first and second coupling grooves 72 and 74 are radially formed at a predetermined distance from the PCB 12 and the step 22a of the fixing portion 22, And the elastic piece 76a of the engaging pin 76 is formed to be able to be engaged and separated by exerting elasticity.

When the first and second coupling grooves 72 and 74 and the coupling pin 76 are coupled by the opening piece 76b formed at the rear end of the coupling pin 76, The engagement pin 76 can be easily separated from the first and second engagement grooves 72 and 74 by pressing the engagement pin 76 inward.

In the present invention, as shown in FIGS. 6 to 8, the binding holding portion 90 for binding the coupling pin 76 to the LED module 10 and the step 22a, Configuration is further implemented.

The coupling holding portion 90 is provided on the upper surface of the LED module 20 due to the separation between the heat sink 20 and the LED module 10 in accordance with a change in temperature and a decrease in elastic force of the coupling pin 76 due to repeated shrinkage and relaxation. 10 from being prevented from being smoothly transferred to the heat sink 20.

The binding holding part 90 includes a binding plate 91 formed with a hollow 91a penetrating in the vertical direction and coupled to the outside of the LED 14 and having an upper surface contacting the PCB 12, And a plurality of coupling protrusions 92 extending upward from the upper surface of the plate 91 and fitted into the first and second coupling grooves 72 and 74.

The binding plate 91 and the plurality of binding projections 92 may be made of various materials that are not deformed while being melted by the heat generated from the LEDs 14. [

For example, the binding plate 91 and the plurality of binding protrusions 92 may be integrally formed of metal.

The binding plate 91 extends from the outside to the inside with respect to the binding protrusions 92 and has a plurality of through holes 91b through which the elastic pieces 76a pass.

Accordingly, the binding plate 91 can stably contact the PCB 12 without interfering with the elastic piece 76a.

The coupling protrusions 92 extend from the lower end portion to the upper end portion with the same diameter and are coupled by the first and second coupling grooves 72 and 74 so that the coupling pins 76 are inserted into the first and second coupling grooves 72, 74 so that the binding state of the coupling pin 76 can be maintained constantly.

The engaging pin 76 is engaged with the first and second engaging grooves 76 and 76 in response to a decrease in the elastic force of the engaging pin 76 due to a temperature change or repeated shrinkage or relaxation due to the season, 72 and 74, respectively.

In addition, the coupling protrusion 92 is prevented from moving in the opposite direction of the opposite ends of the opening piece 76b, thereby preventing the engagement pin 76 from being disengaged due to external pressure or the like.

Accordingly, the coupling pin 76 can be maintained in a state of being coupled to the first and second coupling grooves 72 and 74 so that the contact state between the heat sink 20 and the LED module 10 can be maintained .

Each of the coupling protrusions 92 may extend upward from both lower sides of the coupling protrusions 92 and may have a recess 92a into which the coupling pin 76 is inserted.

The lead-in groove 92a guides the coupling protrusion 92 smoothly into the first and second coupling grooves 72 and 74 along the coupling pin 76.

It is preferable that the inlet groove 92a is communicated with the through hole 91b and the coupling pin 76 protrudes from the surface of the coupling protrusion 92. [

This is because the coupling protrusion 92 is drawn into the first and second coupling grooves 72 and 74 to press the coupling pin 76 against the surface of the first and second coupling grooves 72 and 74, So that the heat dissipating plate 20 and the LED module 10 are not separated from each other due to stable binding of the coupling pin 76.

The coupling protrusions 92 may be formed with pressing protrusions 92b protruding outward on the upper peripheral surface.

The pressing protrusion 92b is located in the second engaging groove 74 and presses the elastic piece 76a against the surface of the second engaging groove 74 so that the engaging pin 76 is engaged with the first, 2 coupling grooves 72 and 74. [

The binding holding portion 90 may further include binding means 93 for binding the binding plate 91 to the PCB 12.

The binding means 93 includes first and second binding members 94 and 95 arranged to face each other and to be detachably coupled to each other by the magnetic force of the binding plate 91 and the PCB 12, .

The first and second binding members 94 and 95 are preferably disposed outside the LED 14 so as not to interfere with the LED 14 mounted on the PCB 12.

Each of the first and second binding members 94 and 95 may be made of a magnet, one of the binding members may be made of a magnet, and the other binding member may be made of a metal.

The first and second binding members 94 and 95 are preferably embedded so as not to protrude from the binding plate 91 and the surface of the PCB 12.

Accordingly, the binding holding part 90 is formed in the LED module 10 due to the separation between the heat sink 20 and the LED module 10 due to temperature change, repeated shrinkage, It is possible to prevent heat generated in the heat sink 20 from being smoothly transferred to the heat sink 20. [

10: LED module 12:
14: LED 20: Heat sink
22: Fixing section 24:
26: heat radiating wing 28: corresponding engaging hole
30: Case 32: receiving groove
40: extended lens 42: diffusing groove
44: Irregular pattern portion 50: Fixing member
52: body 53: engaging hole
54: Anchibu 56: Investigator
58: fastening bolt 60: diffuser sheet
70: detachment means 72: first engagement groove
74: second engaging groove 76: engaging pin
80: prism sheet 90: binding holding part
91: Binding plate 92: Bonding projection
93: binding means 94: first binding member
95: second binding member

Claims (1)

A plurality of LED modules (10) including a PCB (12) on which a plurality of LEDs (14) are mounted;
A fixing part 22 to which the LED module 10 is coupled and a partition 24 connected to the fixing part 22 to form a block, A heat dissipating plate (20) formed by bending mutually adjacent compartments (24) in different directions so as to form different light irradiation directions of the LED module (10) coupled to the fixing portion (22);
A case 30 connected to the heat sink 20 and having a receiving groove 32 formed at a corresponding position of the LED module 10 and having a bent angle corresponding to the partition 24;
Is extended to the outside of the receiving groove 32 of the case 30 to extend the irradiation range of the light irradiated from the LED module 10 so that the extended groove 42 is formed on the contact surface with the LED module 10 An extended lens 40 formed;
A body 52 connected to the heat sink 20 and provided with an irradiation hole 56 bent at a position corresponding to the partition 24 in accordance with the forming angle of the receiving groove 32, A fixing member (50) including a mounting portion (54) to which a lens (40) is mounted and which is coupled to the inside of the body (52);
A diffuser sheet (60) arranged between the notch (54) and the extension lens (40); And
And detachment means (70) for separating and coupling the LED module (10) and the fixing portion (22)
The fixing part (22)
An annular step 22a for separating and coupling the LED module 10 and the fixing part 22,
The detachment means (70)
First and second coupling grooves (72, 74) radially formed to correspond to the LED module (10) and the step (22a);
An engaging pin 76 inserted from the outside of the first and second engaging grooves 72 and 74;
A seating groove 72a formed in the inside of the first engagement groove 72;
An elastic piece 76a formed by bending the front end of the coupling pin 76 and inserted into the seating groove 72a with elasticity; And
The first and second coupling grooves 72 and 74 and the coupling pin 76 are connected to the rear end of the coupling pin 76 and protrude to the outside of the first coupling groove 72. When the both ends are pressed, And an open piece (76b) for ensuring separation of the LEDs,
The heat generated from the LED module 10 due to the separation between the heat sink 20 and the LED module 10 is transferred to the LED module 10 by the binding pin 76 being coupled to the LED module 10 and the step 22a. And a binding holding portion (90) for preventing the sheet from being smoothly transferred to the heat sink (20)
The binding holding portion (90)
A coupling plate 91 formed with a hollow 91a penetrating in the vertical direction and coupled to the outside of the LED 14 and having an upper surface in contact with the PCB 12;
A plurality of coupling protrusions 92 extending upward from the upper surface of the coupling plate 91 and fitted into the first and second coupling grooves 72 and 74; And
And binding means 93 detachably coupling the binding plate 91 to the PC 12,
The binding plate (91)
A plurality of through holes 91b extending from the outside to the inside of each of the coupling protrusions 92 through which the elastic piece 76a passes are formed,
The binding means (93)
And first and second binding members (94, 95) disposed opposite to the binding plate (91) and the PCB (12) so as to be detachably coupled to each other by a magnetic force. A common public streetlight.

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