KR101721141B1 - Lamp head of street light - Google Patents

Abstract

The streetlight lamp is started. A street lamp of the present invention comprises: a power supply unit coupled to an arm and having a power supply; An illumination unit coupled to the power supply unit and having a light source connected to the power supply unit via wiring; And a waterproof packing provided between the power source unit and the illumination unit and having a through hole through which the wiring passes, wherein the waterproof packing forms a multi-end sealed space between the outside and the through hole. According to the present invention, it is possible to provide a streetlight lamp that satisfies the waterproof and dustproof grade of IP66 without increasing or changing the packing even if the smart function is given or the number of LED modules is increased and the internal wiring amount is increased, . ≪ / RTI >

Description

{LAMP HEAD OF STREET LIGHT}

The present invention relates to a streetlight lamp, and more particularly, to a streetlight lamp that satisfies the waterproof and dustproof grade of IP66 without increasing or changing the packing even if the smart function is given or the number of LED modules is increased, Thereby improving the workability of the street lamp.

Street light is an illumination facility installed along the street for the safety and security of the street traffic. The street light is used according to the installation place such as the highway, the main road of the city area, the commercial district road, and the housing district road.

In this connection, Korean Patent Registration No. 1655968 discloses a lamp head for street lamps. Japanese Patent Publication No. 1655968 discloses a lighting device comprising: a lower housing having a first space portion in which a light source module is mounted, a second space portion in which a power module is mounted, and a partition wall partitioning the first space portion and the second space portion; And an upper housing formed of a first cover and a second cover hinged to the partition so as to open and close the first and second space portions, respectively, wherein the partition wall has a first axis projection projected on one outer side surface, And a first shaft portion having a first shaft groove recessed on an outer surface thereof.

Japanese Patent Application No. 1655968 discloses that a first space portion in which a light source module is mounted and a second space portion in which a power module is mounted are partitioned into partitions by a partition wall so that rainwater or the like is infiltrated into a power module vulnerable to moisture, There is an advantage that it is prevented.

Since the first space portion and the second space portion are partitioned by the barrier ribs, the wiring of the power module mounted on the second space portion is connected to the light source module mounted on the first space portion, A packing member for ensuring the water tightness between the wiring and the wiring hole must be provided in the wiring hole.

When used as general street lamps, a simple packing ring made of a flexible material such as rubber or silicone that can be brought into close contact with the outer peripheral surface of the wiring can be used as the packing member. However, Due to the limitations, it is required to apply the cable gland as a packing member when it is required to meet the waterproof and dustproof grade of IP66 (protected from dust and protected from water spraying with high pressure in all directions) according to the installation location.

However, since cable gland can secure watertight performance only for a single wiring having a circular cross-sectional shape, the smart function is recently given to a street light, and the number of internal wiring is increased due to the use of a large number of LED modules as a light source. In order to satisfy the dustproof grade, a plurality of cable glands must be used. In order to install a plurality of cable glands in a limited space inside the street light, the bulb of the street light must be increased. There is a problem that workability is lowered during installation and maintenance.

(0001) Korean Registered Patent No. 1655968 (Registered Date: 2016.09.02)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a street lamp that satisfies the waterproof and dustproof grade of IP66 without increasing or changing the packing even if the internal function of the LED module is increased due to the smart function or the increase in the number of LED modules, Lamp.

According to the present invention, said object is achieved by a power supply unit which is coupled to an arm and is equipped with a power supply unit; A lighting unit coupled to the power supply unit and including a light source connected to the power supply unit via wiring; And a waterproof packing provided between the power source unit and the illumination unit and having a through hole through which the wiring passes, wherein the waterproof packing forms a multi-end sealed space between the outside and the through hole, .

A first insertion hole is formed in the power supply unit, a second insertion hole is formed in the illumination unit, the second insertion hole being connected to the first insertion hole, the waterproof packing including: a body having the through hole; A plurality of first elastic protrusions formed on the outer surface of the body and closely contacting the inner surface of the first insertion hole to form the multi-end closed space in the first insertion hole; And a plurality of second elastic protrusions formed on an outer surface of the body and closely contacting the inner surface of the second insertion hole to form the multi-end closed space in the second insertion hole.

The illumination unit may include a first illumination module and a second illumination module in which the light sources are installed, and the waterproof packing may be provided between the first illumination module and the second illumination module.

A first insertion hole is formed in the first illumination module, a second insertion hole is formed in the second illumination module, the second insertion hole being connected to the first insertion hole, the waterproof packing including: a body having the through hole; A plurality of first elastic protrusions formed on the outer surface of the body and closely contacting the inner surface of the first insertion hole to form the multi-end closed space in the first insertion hole; And a plurality of second elastic protrusions formed on an outer surface of the body and closely contacting the inner surface of the second insertion hole to form the multi-end closed space in the second insertion hole.

The first elastic protrusion is bent in the direction of the second insertion hole and the second elastic protrusion is deformed in the direction of the first insertion hole when the waterproof packing is inserted into the first insertion hole and the second insertion hole It can be made to flex and deform.

The first elastic projection is formed with a first inclined surface which is brought into close contact with the inner surface of the first insertion hole when the first elastic projection is bent, and the second elastic projection is formed with a second inclined surface which is in contact with the inner surface of the second insertion hole .

A third elastic projection may be formed on the outer surface of the body between the first elastic projection and the second elastic projection so as to be closely attached to the inner surfaces of the first insertion hole and the second insertion hole.

Wherein the first insertion hole and the second insertion hole are formed with stepped portions for compressing the body in the direction of forming the through hole, respectively, and the fourth elastic protrusion, which is compressed by the step, And may be formed at both ends.

The through holes may be inclined toward the light source, and a plurality of fifth elastic protrusions may be formed on the inner surface of the through hole by being compressed by the outer surface of the wiring to form an isolation space.

According to the present invention, since the waterproof packing forms a multi-stage sealed space between the outside and the through hole, even if the smart function is given or the number of LED modules is increased, the waterproof and dustproof grade of IP66 is increased It is possible to provide a streetlight lamp that satisfies the above requirements and is improved in workability in installation and maintenance.

1 and 2 are perspective views of a streetlight lamp according to an embodiment of the present invention.
FIG. 3 and FIG. 4 are exploded perspective views of the streetlight lamp of FIG. 1;
5 is a cross-sectional view of the streetlight lamp of Fig.
FIGS. 6, 7 and 10 are perspective views of a waterproof packing of the streetlight lamp of FIG. 1;
Figs. 8 and 11 are partial cross-sectional views of the streetlight lamp of Fig. 3; Fig.
Figs. 9 and 12 are partial enlarged views of the streetlight lamp of Fig. 5; Fig.
13 is a partial cross-sectional view of a streetlight lamp according to another embodiment of the present invention.
14 is a perspective view of a waterproof packing of the streetlight lamp of Fig. 13;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

INDUSTRIAL APPLICABILITY The streetlight lamp of the present invention satisfies the waterproof and dustproof grade of IP66 without increasing or changing the packing even if the internal wiring amount is increased due to the addition of the smart function or the increase of the number of LED modules, .

3 is a perspective view of a streetlight lamp according to an embodiment of the present invention; Fig. 5 is a sectional view of the streetlight lamp of Fig. 1; Figs. 6 and 7 And FIG. 10 is a perspective view of a waterproof packing of the streetlight lamp of FIG. 1, FIGS. 8 and 11 are partial cross-sectional views of the streetlight lamp of FIG. 3, FIGS. 9 and 12 are partial enlarged views of the streetlight lamp of FIG. Fig. 14 is a perspective view of a waterproof packing of the streetlight lamp of Fig. 13; Fig.

As shown in FIGS. 1 to 4, the street lamp 10 of the present invention satisfies the waterproof and dustproof grade of IP66 without increasing or changing the packing 213 even if the amount of internal wiring increases, And includes a power source unit 100, an illumination unit 200, and a waterproof packing 300. Hereinafter, in order to facilitate understanding of the present invention, upper and lower portions will be described in detail.

5, the power supply unit 100 includes a case 110, a mounting bracket 120, and a power supply unit 130 for supplying an external power source to the illumination unit 200 side.

The case 110 forms a coupling force with the arm 1 of the streetlight. In the streetlight, the arm (1) is a well-known term that refers to a portion extending from a lantern to a ramp into a road or a walkway. The case 110 includes a main body 111 and a power door 112.

The main body 111 is formed with a hole 111H through which the arm 1 is inserted and the mounting bracket 120 is bolted to the main body 111 from the inside of the hole 111H. The arm (1) forms a coupling force with the main body (111) by the bolt fastening force of the mounting bracket (120).

3 and 4, a pair of support bars D are coupled to the main body 111. As shown in FIG. The supporting bar D is a structure for maintaining at least one lighting module 210 in a straight line shape connected to the main body 111 in one direction and is connected to the main body 111 from the main body 111, 210).

5, the power door 112 is rotatably coupled to the main body 111 below the hole 111H into which the arm 1 is inserted. The inner space between the main body 111 and the power door 112 is opened or closed through the rotation of the power door 112 in the state where the street lamp is installed. Reference numeral 110N denotes a hinge portion for rotatably connecting the power door 112 and the main body 111. [

5, when the operator rotates the power door 112 counterclockwise (with respect to the hinge portion 110N), the first internal space S1 is opened. When the power door 112 is rotated in the clockwise direction with the first inner space S1 opened, the first inner space S1 is closed from the outside. Power supply 130 may be coupled to power door 112.

Referring to FIG. 1, when the first internal space S1 is closed, the main body 111 and the power door 112 are prevented from rotating relative to each other by the locking member 110R. The locking member 110R is a coupling means for forming a coupling force between the main body 111 and the power door 112, and can be selectively applied to various known technologies such as a rotation locking structure and a bolt locking structure.

5, the first inner space S1 includes a space (hereinafter referred to as 'engagement space S1-1') to which the arm 1 is coupled (hereinafter referred to as 'engagement space S1-1') and a space in which the power supply device 130 is installed Space S1-2 '). The coupling space S1-1 and the installation space S1-2 are partitioned by the partition 110W formed in the case 110. [

The partition wall 110W is formed with a hole through which the external power line passes, and the cable gland G is coupled to the hole to seal the installation space S1-2. The external power line is drawn into the engagement space S1-1 through the arm 1 and connected to the power supply unit 130 via the cable gates G. [

The main body 111 is formed with a first insertion hole H1 on the opposite side of the hole 111H into which the arm 1 is inserted. The first insertion hole H1 is a portion where the waterproof packing 300 is inserted from the outside. The wiring (not shown) of the power supply unit 130 passes through the through hole 310H formed in the waterproof packing 300 and enters the inside of the illumination unit 200. [ 5, 9, and 12 do not show wiring for easy understanding of the internal configuration.

As shown in FIG. 5, the illumination unit 200 includes a light source 212 and at least one illumination module 210 and an end cap 220. The lighting modules 210 have the same structure, and a light source 212 is installed. The lighting module 210 may be connected in series from the end of the light source 212 portion. The total amount of light increases or decreases in proportion to the number of the lighting modules 210 installed.

The number of the lighting modules 210 connected in series is not limited. 5 shows a state in which two lighting modules 210 are installed. Hereinafter, a description will be made with reference to a state where two lighting modules 210 are installed. The lighting module 210 directly coupled to the power source unit 100 is referred to as a 'first lighting module' and the lighting module 210 coupled to the first lighting module is referred to as a ' 2 lighting module '.

The length of the support bars D is determined in proportion to the number of lighting modules 210 connected in series. Assuming that the length of one lighting module 210 is L, the support bar D has a length L + α (the length of the fastening portion of the case 110 and the end cap 220) when one lighting module 210 is installed, The supporting bar D is formed to have a length of 2L + α when the two lighting modules 210 are installed and the supporting bar D has a length of 3L + α when the three lighting modules 210 are installed. .

The lighting module 210 includes a housing 211, a light source 212 (LED module), a packing 213, a lens 214, and a cap.

The housing 211 has an opening at the lower end thereof, and the light source 212 is seated around the opening. Below the light source 212, a lens 214 for condensing the light of the LED is provided. A packing 213 is interposed between the lens 214 and the housing 211 to block the penetration of moisture through the opening. The lens 214 is in close contact with the packing 213 by the lid 215. A heat radiating rib 211R for quickly discharging the heat of the light source 212 to the outside is formed on the upper portion of the housing 211. [ Hereinafter, the inner space of the housing 211 is referred to as a 'second inner space S2'.

3 and 4, the housing 211 is formed with a first insertion hole H1 and a second insertion hole H2 through which the waterproof packing 300 is inserted from the outside. The first insertion hole H1 and the second insertion hole H2 are formed on opposite sides in the direction in which the illumination modules 210 are connected to each other.

As shown in FIGS. 5, 8, 9, 11 and 12, the first insertion hole H1 and the second insertion hole H2 receive the waterproof packing 300 together. The first insertion hole H1 of the power source unit 100 receives the waterproof packing 300 together with the second insertion hole H2 of the first lighting module 210 (see FIGS. 8 and 9) And the first insertion hole H1 of the first illumination module 210 receives the waterproof packing 300 together with the second insertion hole H2 of the second lighting module 210 12). The first insertion hole H1 and the second insertion hole H2 may be formed in the same shape (see FIGS. 11 and 12) or may be formed in different shapes (see FIGS. 8 and 9).

Referring to FIGS. 8, 9, 11 and 12, the first insertion hole H1 and the second insertion hole H2 include a step (not shown) for compressing the body 310 in the direction of the through hole 310H W are formed. The body 310 is compressed by the coupling force between the case 110 and the housing 211 in the first insertion hole H1 and the second insertion hole H2.

Holes (not shown) into which the pair of support bars D are inserted are formed in the housing 211, respectively. The first illumination module 210 and the second illumination module 210 are maintained in a straight line shape connected in one direction by the support bar D extending from the main body 111. Although not shown in detail, a hole through which the bolt B is screwed is formed at an end of the support bar D.

The end cap 220 has a structure in which the first insertion hole H1 in which the waterproof packing 300 is not inserted is sealed from the outside and the end cap 220 is screwed to the end of the support bar D in a state of covering the first insertion hole H1. And is coupled to the end of the second illumination module 210 by a bolt (B)

The end cap 220 is coupled to the end of the second illumination module 210 when two illumination modules 220 are installed as in the embodiment of the present invention. Although not shown, it is to be understood that the end cap 220 is coupled to the end of the third illumination module (not shown), assuming that three illumination modules 220 are installed.

5, in a state where the power source unit 100, the first lighting module 210 and the second lighting module 210 are coupled to each other, the first insertion hole H1 of the power source unit 100, The first insertion hole H1 of the first illumination module 210 and the second insertion hole H2 of the second illumination module 210 are connected to each other (see FIGS. 8 and 9) The insertion holes H2 are also connected to each other (see Figs. 11 and 12).

6, 7, and 10, the waterproof packing 300 has a structure in which a multi-stage hermetically sealed space A1 is formed between the outside and the through hole 310H on both sides, and includes a body 310, The second elastic protrusions 330, the third elastic protrusions 340, and the fourth elastic protrusions 350. The elastic protrusions 320, the second elastic protrusions 330, the third elastic protrusions 340,

The waterproof packing 300 is provided between the power source unit 100 and the first illumination module 210 in the first insertion hole H1 and the second insertion hole H2 (see FIGS. 8 and 9) (See FIGS. 11 and 12) between the lighting module 210 and the second lighting module 210 in the first insertion hole H1 and the second insertion hole H2. The waterproof packing 300 provided between the power source unit 100 and the first lighting module 210 is referred to as a first waterproof packing and the first lighting module 210 is referred to as a first waterproof packing, And the waterproof packing 300 provided between the first illumination module 210 and the second illumination module 210 will be referred to as a 'second waterproof packing'.

One of the bodies 310 is accommodated in the first insertion hole H1 and the other side of the body 310 is accommodated in the second insertion hole H2 as shown in FIGS. 8, 9, 11, Lt; / RTI > The outer surface of the body 310 is separated from the inner surfaces of the first insertion hole H1 and the second insertion hole H2 by the first elastic protrusion 320, the second elastic protrusion 330, and the third elastic protrusion 340 It is separated. In the body 310, a through hole 310H through which wiring is passed is formed. The first inner space S1 and the second inner space S2 are connected to each other by a through hole 310H.

The first elastic protrusions 320 are formed in close contact with the inner surface of the first insertion hole H1 to form a multi-end closed space A1 in the first phase inlet hole, and a plurality of the elastic protrusions 320 are formed on the outer surface of the body 310. [ The second elastic protrusion 330 has a structure in which a multi-end closed space A1 is formed in the second insertion hole H2 by being closely attached to the inner surface of the second insertion hole H2, and a plurality of the elastic protrusions 330 are formed on the outer surface of the body 310 . The first elastic protrusions 320 and the second elastic protrusions 330 are formed on the opposite sides of the third elastic protrusions 340.

The third elastic projection 340 is formed in the first insertion hole 311 along a portion where the case 110 and the housing 211 are coupled to each other (see FIG. 9) and a portion where the pair of housings 211 are coupled End sealed space A1 together with the first elastic protrusion 320 and the second elastic protrusion 330 by being in close contact with the inner surfaces of the first insertion hole H1 and the second insertion hole H2.

Therefore, even when external moisture permeates between the case 110 and the housing 211 and between the pair of housings 211, the moisture is primarily absorbed by the inner surfaces of the first insertion holes H1 and the second insertion holes H2, The first insertion hole H1 and the second insertion hole H2 are prevented from being introduced into the second insertion hole H2 by the third elastic protrusion 340 adhered to the first insertion hole H1. Even if moisture passes through the third elastic protrusions 340, the moisture is trapped in the multi-end closed space A1 formed on both sides of the third elastic protrusion 340, and the first internal space S1 and the second internal space (S2) is blocked.

As shown in FIGS. 8, 9, 11 and 12, in the process of inserting the waterproof packing 300 into the first insertion hole H1 and the second insertion hole H2, the first elastic protrusion 320 Is deflected in the direction of the second insertion hole H2 by the frictional force with the inner surface of the first insertion hole H1 and the second elastic protrusion 330 is bent by the frictional force with the inner surface of the second insertion hole H2, And is deflected in the direction of the insertion hole H1.

The first elastic protrusion 320 is formed with a first inclined surface 321 which is brought into close contact with the inner surface of the first insertion hole H1 during the bending deformation and the second elastic protrusion 330 is provided with a second insertion hole H2 A second inclined surface 331 is formed. The area of the first elastic protrusion 320 which is brought into close contact with the inner surface of the first insertion hole H1 is increased by the first inclined surface 321 and the area of the second elastic protrusion 330 is increased by the second inclined surface 331 The area of the second insertion hole H2 that is in close contact with the inner surface increases.

As shown in FIGS. 6, 7 and 10, the waterproof packing 300 is formed with the fourth elastic protrusions 350 at both ends in the direction in which the through hole 310H is formed. The fourth elastic projection 350 is formed to surround the entrance of the through hole 310H. 8, 9, 11, and 12, the fourth elastic protrusion 350 is compressed by the step W, and the infiltration of moisture between the through hole 310H and the multi- Lt; / RTI >

As shown in FIGS. 13 and 14, the waterproof packing 300 may have a structure for forming the isolation space A2 inside the through hole 310H. The through hole 310H is formed in a circular shape to allow the single wiring C to pass therethrough and a plurality of fifth resilient members 310A and 310B are formed on the inner surface of the through hole 310H by the outer surface of the wiring C, The protrusion 360 is formed. Therefore, even if moisture enters the illumination unit 200, the movement to the power source unit 100 through the through hole 310H is prevented. The through hole 310H is formed in a downward inclined shape toward the light source 212 so as to block the possibility of movement of moisture by gravity.

According to the present invention, since the waterproof packing forms a multi-stage sealed space between the outside and the through hole, even if the smart function is given or the number of LED modules is increased, the waterproof and dustproof grade of IP66 is increased It is possible to provide a streetlight lamp that satisfies the above requirements and is improved in workability in installation and maintenance.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

10: street lamp
100: power supply unit 200:
110: Case 210: Lighting module
111: main body 211: housing
H1: first insertion hole 211R: heat dissipating rib
W: step H2: second insertion hole
D: support bar S2: second inner space
112: Power door 212: Light source
S1: First internal space 213: Packing
S1-1: coupling space 214: lens
S1-2: Installation space 215: Cover
110N: Hinge part 220: End cap
110W: bulkhead 1: arm
110R: locking member
G: Cable Grand
120: Mounting bracket
130: Power supply
300: Waterproof packing
310: Body
310H: through hole
320: first elastic projection
321: first inclined surface
330: second elastic projection
331: second inclined surface
340: third elastic projection
350: fourth elastic projection
360: fifth elastic projection
A1: Multistage sealed space
A2: Isolation space

Claims (9)

A power supply coupled to the arm and having a power supply;
A lighting unit coupled to the power supply unit and including a light source connected to the power supply unit via wiring; And
And a waterproof packing provided between the power supply unit and the illumination unit and having a through hole through which the wiring passes,
Wherein the waterproof packing forms a multi-end sealed space between the outside and the through hole,
The power supply unit may include a first insertion hole,
A second insertion hole connected to the first insertion hole is formed in the illumination portion,
The waterproof packing
A body having the through-hole formed therein;
A plurality of first elastic protrusions formed on the outer surface of the body and closely contacting the inner surface of the first insertion hole to form the multi-end closed space in the first insertion hole; And
And a plurality of second elastic protrusions formed on an outer surface of the body and closely contacting the inner surface of the second insertion hole to form the multi-end closed space in the second insertion hole. delete The method according to claim 1,
Wherein the illumination unit includes a first illumination module and a second illumination module,
And the waterproof packing is provided between the first lighting module and the second lighting module. The method of claim 3,
A first insertion hole is formed in the first illumination module,
The second illumination module is formed with a second insertion hole connected to the first insertion hole,
The waterproof packing
A body having the through-hole formed therein;
A plurality of first elastic protrusions formed on the outer surface of the body and closely contacting the inner surface of the first insertion hole to form the multi-end closed space in the first insertion hole; And
And a plurality of second elastic protrusions formed on an outer surface of the body and closely contacting the inner surface of the second insertion hole to form the multi-end closed space in the second insertion hole. The method according to claim 1 or 4,
The first elastic protrusion is bent in the direction of the second insertion hole and the second elastic protrusion is deformed in the direction of the first insertion hole when the waterproof packing is inserted into the first insertion hole and the second insertion hole Wherein the lamp is bent and deformed. 6. The method of claim 5,
Wherein the first elastic projection is formed with a first inclined surface which is in close contact with an inner surface of the first insertion hole when the first elastic projection is bent,
Wherein the second elastic projection is formed with a second inclined surface which is in close contact with the inner surface of the second insertion hole when the second elastic projection is bent. The method according to claim 1 or 4,
And a third elastic protrusion formed on the outer surface of the body between the first elastic protrusion and the second elastic protrusion so as to be closely attached to the inner surfaces of the first insertion hole and the second insertion hole. The method according to claim 1 or 4,
Wherein the first insertion hole and the second insertion hole each have a step for compressing the body in a direction of forming the through hole,
Wherein the waterproof packing is formed with fourth elastic protrusions, which are compressed by the step, at both ends of the through hole in the forming direction. The method according to claim 1,
Wherein the through hole is inclined toward the light source,
And a plurality of fifth elastic protrusions are formed on an inner surface of the through-hole so as to be compressed by an outer surface of the wiring to form an isolation space.

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