KR20160053528A - Slim floodlighting - Google Patents

Slim floodlighting Download PDF

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Publication number
KR20160053528A
KR20160053528A KR1020140152696A KR20140152696A KR20160053528A KR 20160053528 A KR20160053528 A KR 20160053528A KR 1020140152696 A KR1020140152696 A KR 1020140152696A KR 20140152696 A KR20140152696 A KR 20140152696A KR 20160053528 A KR20160053528 A KR 20160053528A
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KR
South Korea
Prior art keywords
cord
circuit board
printed circuit
inlet
core wire
Prior art date
Application number
KR1020140152696A
Other languages
Korean (ko)
Inventor
김정열
Original Assignee
김정열
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김정열 filed Critical 김정열
Priority to KR1020140152696A priority Critical patent/KR20160053528A/en
Publication of KR20160053528A publication Critical patent/KR20160053528A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

Provided is a slim flood light capable of achieving the complete waterproofing of a cord inlet part. The slim flood light comprises: a case (10) having a light source (L) embedded therein; the cord inlet part (12) provided in the case (10) having a cord (2) introduced therein to be connected to the light source (L); a printed circuit board (20) provided in the cord inlet part (12); a coupling support unit (14) for sealing between the cord inlet part (12) and the printed circuit board (20); a sealing bonding unit (26) for bonding a core wire (2c) inside the cord (2) to the printed circuit board (20) to block a gap between the core wire (2c) and the printed circuit board (20); and a waterproof barrier (28) filled in the cord inlet part (12) to block the sealing bonding unit between the printed circuit board (20) and the inlet end of the cord inlet part (12) and between the core wire (2c) of the cord (2) and the printed circuit board (20). A cord cap (16), which is inserted from the inlet end, is provided inside the cord inlet part (12), and the waterproof barrier (28) is provided between the cord cap (16) and the printed circuit board (20).

Description

Slim floodlighting

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a slim floodlight and the like, and more particularly, to a new slim floodlight and the like designed to have a completely waterproof structure at a portion where a power cord enters.

Generally, floodlights are installed indoors or outdoors so that light of desired brightness can be inspected in architectural structures, large monuments, various stadiums, various factory facilities, and industrial facilities. As a light source used in conventional floodlighting, metal halide lamps, sodium lamps such as sodium lamps, halogen lamps, etc. are used. These lamps are consumed in a large amount, have a short service life, It has high disadvantages such as polluting environment.

Therefore, recently, LEDs which require low power consumption and have a semi-permanent lifetime characteristic are widely applied as light sources in terms of improvement of illumination and energy saving. On the other hand, in a floodlight using an LED as a light source, heat is generated at the time of light emission of the LED, and a large amount of heat is generated in proportion to such heat generation. In order to satisfy such a heat dissipation function, a heat sink such as a heat sink is often laid on the back surface of the LED light.

Conventionally, there is a problem in that waterproofing between a power cord connected to apply a power source to a light source and a cord inlet part of a light-emitting case can not be properly performed. Conventionally, the sealing between the power cord and the cord entry portion of the light-emitting case is sealed by a sealing member such as a normal packing, but the outer cover of the power cord, two built-in power cord or signal cord and two built- There is no way to protect the rainwater infiltrating into the inside of the power cord when the rainwater penetrates between the lines, and as a result, the rainwater entering the inside of the power cord enters the inside of the light source and short- Causing problems.

Domestic Registration No. 10-1421407 (Registered on July 15, 2014) Korean Registered Patent No. 10-1089797 (registered on November 29, 2011) Domestic registered patent No. 10-1211186 (registered on December 05, 2012)

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the above-mentioned problems, and an object of the present invention is to provide a waterproof structure in which a waterproof structure is formed at a portion where a power cord is inserted, And to provide a slim floodlight of a new structure capable of preventing a serious problem in advance.

According to an aspect of the present invention, there is provided a display device including: a case having a light source therein; A cord insertion unit provided in the case to receive a cord for connection to the light source; A printed circuit board provided on the cord inlet; A coupling support portion for sealingly securing between the cord inlet portion and the printed circuit board; And a soldering joint for bonding a core wire (copper wire) inside the cord to the printed circuit board to block a gap between the core wire and the printed circuit board.

And a waterproof barrier which is filled in the cord inlet and blocks the soldering joint between the printed circuit board and the inlet end of the cord inlet and between the core wire of the cord and the printed circuit board.

A cord cap inserted from the inlet end is provided in the cord inlet portion, and the waterproof barrier is provided between the cord cap and the printed circuit board.

The waterproof barrier material is formed by filling an epoxy into the cord inlet portion, and the cord cap is integrally coupled to the waterproof barrier material.

Characterized in that the cord is coupled to the cord inlet portion before the epoxy is cured in a state where the epoxy is filled in the cord inlet portion so that the cord cap is integrally bonded to the epoxy when the epoxy is cured .

Wherein the printed circuit board is provided with a wire connecting hole communicated from the outer side to the inner side and the core wire having the cord covering the cord is inserted into the core wire fitting hole, And the space between the core wire and the wire connecting hole is blocked.

The printed circuit board is injection-molded by insert injection molding into the cord entry portion of the case to form the coupling support portion, and the coupling support portion is supported so as to be sealingly engaged with the cord entry portion of the printed circuit board.

The coupling support portion may include an outer sealing member and an inner sealing member that are held in contact with the outer surface and the inner surface of the printed circuit board to support the printed circuit board so as to be disposed inside the cord receiving portion.

Wherein the printed circuit board is attached to the cord entry portion of the case by a tape to form the coupling support portion by the tape and the coupling support portion is supported so as to be sealingly engaged with the cord entry portion of the printed circuit board have.

The coupling support part may include an outer tape and an inner tape which are held in contact with the outer surface and the inner surface of the printed circuit board to support the printed circuit board so as to be disposed inside the cord inlet.

According to another aspect of the present invention, A cord inlet for receiving a cord to be connected to the light source; A cable gland coupled to the cord inlet; And a waterproof barrier disposed between an upper portion of the cable gland and the cord inlet portion to seal the cord inlet portion and the cable gland.

The waterproof barrier material is composed of epoxy cured by filling the inside of the cord inlet part.

The slim projected light according to the present invention blocks only water such as rainwater entering the outside of the power supply cord for light emission of the light source and unlike the conventional one in which water penetrating the inside of the cord can not be blocked, Since the water can be completely blocked, it has an effect of achieving complete waterproofing of the portion where the cord comes in compared with the conventional one. The cord includes an outer sheath and an inner sheath enclosed within the outer sheath wrapped around the core sheath, wherein the inner sheath enters the outer sheath of the cord and rides on the inner sheath so that, even if water reaches the printed circuit board, Since the soldering joint connecting the circuit board completely blocks the gap between the joint between the core wire of the cord and the printed circuit board, it is possible to prevent the water coming in the cord from penetrating into the case through the printed circuit board You can. Unlike the conventional structure, it is a relatively simple structure, but the water entering the inside of the cord is totally prevented from penetrating into the inside of the case containing the light source such as LED and the main printed circuit board, It is possible to completely prevent a safety accident such as a shot or an electric shock by means of the present invention.

1 is a rear perspective view of a slim light projection lamp according to an embodiment of the present invention;
Fig. 2 is a front perspective view of the slim light transmission light shown in Fig.
Fig. 3 is a longitudinal sectional view showing the internal structure of Fig. 1
4 is a cross-sectional perspective view showing an enlarged structure of the main part of the present invention.
5 is an enlarged longitudinal sectional view showing the structure of the main part of the present invention.
6 is a longitudinal sectional view showing an enlarged main part structure of a slim light transmission light according to another embodiment of the present invention
7 is a rear perspective view of a slim light transmission lamp according to still another embodiment of the present invention.
8 is an enlarged cross-sectional perspective view of the structure of the main part of Fig.
9 is a longitudinal sectional view showing an enlarged view of a sealing joint portion which is a main part of the present invention
10 is an enlarged longitudinal sectional view showing a main part structure of a slim light projecting light having a sealing joint shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. The same reference numerals are used for the same parts in the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected,""coupled," or "connected. &Quot;

Referring to the drawings, a slim transflective lamp according to the present invention realizes a complete waterproof structure for a portion where a power cord 2 is inserted in a case 10, thereby ensuring safety by preventing penetration of rainwater The structure of the present invention basically comprises a case 10, a cord insertion portion 12 provided in the case 10, a coupling support portion 14 provided in the cord insertion portion 12, A sealing joint portion 26 for bonding the core wire 2c of the cord 2 to the printed circuit board 20 and preventing penetration of rainwater or the like between the joint connecting portion of the core wire 2c and the printed circuit board 20 .

The case 10 has a box shape in which a bottom cover 10A on the rear side and a top cover 10B on the front side are coupled. The bottom cover 10A and the top cover 10B are coupled to each other so that the case 10 is formed into a substantially hexahedral box shape.

The bottom cover 10A is in the shape of a square box with its front open. And a plurality of bosses provided on an inner surface adjacent to a substantially edge of the bottom cover 10A. Each boss portion defines a fastener insertion hole communicated from the outer surface to the inner surface of the bottom cover 10A. In addition, the bottom cover 10A is provided with a heat sink coupling hole. The heat dissipating plate coupling hole has a substantially rectangular hole shape communicating with the inside and outside of the bottom cover 10A. The heat sink 11 is formed in a plate shape having a plurality of heat sinks 11a so that the inner surface opposite to the outer surface provided with the heat sink 11a is connected to the main printed circuit board 24 The heat sink 11a has a structure that extends to the back of the case 10 through the heat sink coupling hole of the bottom cover 10A. In addition, the bottom cover 10A has a border sector of a certain width around the heat sink coupling hole.

The top cover 10B has a rectangular box shape corresponding to the shape of the bottom cover 10A to be engaged with the bottom cover 10A at the front. The top cover 10B is in the shape of a square box with the rear open. The top cover 10B also includes a plurality of bosses provided on an inner surface adjacent to the edge. The boss portion of the top cover 10B meets the boss portion of the bottom cover 10A. Each boss portion of the top cover 10B forms a fastener coupling hole in which a fastener such as a bolt is fastened.

When the top cover 10B and the bottom cover 10A are arranged to face each other in the front-rear direction and are formed into a substantially rectangular box shape, the fastener insertion holes formed in the boss portion of the bottom cover 10A and the fastener insertion holes formed in the top cover 10B The fastening hole of the boss portion is aligned so as to meet. In this state, when a fastener such as a bolt penetrating the fastener insertion hole of the bottom cover 10A is fastened to the fastener fitting hole of the top cover 10B, a substantially rectangular box-shaped case 10 having a space therein is formed Assembled.

A main printed circuit board 24 is provided in the case 10 and an LED serving as a light source L is mounted on the main printed circuit board 24. The LED is lit by a power source applied from the power cord 2. The cord cover 2 is inserted into the cord inflow portion 12 of the case 10 so that the cord inflow portion 12 is inserted into the cord inflow portion 12 of the case 10, And the printed circuit board 20 is connected to the main printed circuit board 24 built in the case 10 by another wire or other conductive material And an LED is mounted on the main PCB 24 by soldering so that the light source L emits light by the power supplied from the power cord 2.

 The top cover 10B is provided with a glass 10C. The glass 10C is a light-transmitting plate that emits light when an LED, which is a light source L such as a slim projected light of the present invention, emits light. Therefore, the light of the LED is emitted through the glass 10C when the LED in the case 10 emits light. On the other hand, a reflector is provided inside the case 10 to further increase light-emitting efficiency of the LED.

A cord inlet portion 12 is formed in the bottom cover 10A, which is a constitution of the case 10. A cord inlet portion 12 is formed in a border sector of the bottom cover 10A. The cord inlet portion 12 is formed in a circular tube shape having a space portion therein and enters the bottom of the bottom cover 10A at a certain depth. Since the bottom cover 10A constitutes the case 10, the cord insertion portion 12 slightly protruding backward is provided on the bottom cover 10A so that the cord insertion portion 12 is provided in the case 10 can see.

The cord inlet portion 12 has an inner sealing piece 14b at an inner end (an end opposite to the inlet end). The inner sealing piece 14b is a portion that supports the inner surface of the printed circuit board 20 to be described later. The inner sealing piece 14b is provided with an opening communicating with the inner side and the outer side. And the hole of the inner sealing piece 14b is communicated with the inner space portion of the cord inlet portion 12. [ The conductive core wire 2c (copper wire) of the power cord 2 comes into the hole formed in the inner sealing piece 14b. Further, the cord inlet portion 12 is provided with an outer sealing piece 14a on its inner peripheral surface. The outer sealing piece 14a is disposed on the inner peripheral surface between the inner sealing piece 14b and the inlet end of the cord inlet portion 12. [ The outer sealing piece 14a is a portion for supporting the outer surface of the printed circuit board 20. [ The outer sealing piece 14a is also provided with a hole communicating with the inner and outer sides thereof. The hole of the outer sealing piece 14a communicates with the inner space portion of the cord inlet portion 12. [ The conductive core wire 2c (copper wire) of the power cord 2 is passed through the hole formed in the outer sealing piece 14a. The outer sealing member 14a and the inner sealing member 14b serve as a coupling support portion 14 for fixing the printed circuit board 20 to be sealed to the cord inlet portion 12 of the case 10. The printed circuit board 20 can be sealingly joined to the cord inlet portion 12 by the coupling support portion 14 by inserting the printed circuit board 20 together when the bottom cover 10A is molded have. On the other hand, the printed circuit board 20 may be attached to the cord inlet portion 12 of the case 10 by tape to form the coupling support portion 14 with a tape. An inner end tape is attached to the inner end of the cord infeed part 12 and an outer end tape is attached to the inner circumferential surface of the cord infeed part 12. The two inner end tapes and the outer end tapes are attached to the printed circuit board 20 May be sealingly coupled to the cord inlet 12. The coupling supporting portion 14 for supporting the printed circuit board 20 so as to be sealingly engaged with the cord inlet portion 12 by the inner sealing piece 14b formed on the cord receiving portion 12 and the outer shorting tape, . At this time, while the bottom cover 10A is formed without insert injection molding the printed circuit board 20 together with the bottom cover 10A, the inner sealing piece 14b (having a hole at the center thereof) And the outer end tape is simultaneously joined to the printed circuit board 20 and the cord inlet portion 12 in a state where the printed circuit board 20 is inserted into the cord receiving portion 12, The circuit board 20 can be sealed so as to be coupled to the cord inlet portion 12 by the outer end tape 14c and the inner sealing piece 14b. The engaging support portion 14 may be composed of the tape 14c and the inner sealing piece 14b. The sealing of the printed circuit board 20 to the cord inlet portion 12 of the case 10 as described above prevents the gap between the printed circuit board 20 and the cord inlet portion 12 .

The present invention is characterized in that the core wire 2c (copper wire) piled up on the cover of the cord 2 is bonded (soldered jointed) to the printed circuit board 20 to bond the core wire 2c of the cord 2 to the printed circuit board 20 And a sealing abutment portion 26 for blocking a gap between the two.

The printed circuit board 20 is separated from the main printed circuit board 24 having a rectangular plate shape and housed in the case 10 and electrically connected to the printed circuit board 24 by a conductive connecting member such as a wire, The printed circuit board 20 is disposed in the region inside the cord inlet portion 12 of the case 10 by the engagement support portion 14. [

The printed circuit board 20 is provided with a code connection hole 22 communicating with an outer surface facing the inlet end of the cord inlet portion 12 of the case 10 and an inner surface facing the inner space portion of the case 10 The conductive core wire 2c (that is, copper wire) provided inside the cord 2 is inserted into the cord connection hole 22 of the printed circuit board 20. [ The cord 2 (power cord 2) may include two power core wires 2c wrapped with an inner jacket 2b on the outer jacket 2a and an inner jacket 2c on the outer jacket 2a Two power core wires 2c and one signal core wire 2c surrounded by the inner core 2b and the outer core core 2b may be embedded. 2c or the two power core wires 2c and the signal core wires 2c are sandwiched in the cord connecting holes 22 of the printed circuit board 20. [

The sealing joint portion 26 is formed by soldering (soldering) while the internal core wire 2c of the cord 2 is fitted in the code connecting hole 22 of the printed circuit board 20. [ The sealing abutment portion 26 prevents the gap between the outer circumferential surface of the core wire 2c of the cord 2 and the inner circumferential surface of the code connecting hole 22 of the printed circuit board 20, It is possible to prevent rainwater from penetrating into the case 10 and the printed circuit board 20 from entering the case 10. In the present invention, the sealing joint portion 26 may be referred to as a soldering joint portion. In the present invention, the sealing joints 26 are provided on the outer surface of the printed circuit board 20, and preferably the sealing joints 26 are also formed on the inner surface of the printed circuit board 20. In this case, the sealing abutment portion 26 is preferably formed by forming the double intercepting sealing abutment portion 26 on the inner surface as well as the outer surface of the printed circuit board 20. This is because the two-layer sealing joints 26 can double seal the inside and outside of the printed circuit board 20 to prevent water from penetrating.

The present invention is packaged in the cord inlet portion 12 of the case 10 so as to be inserted between the printed circuit board 20 and the inlet end of the cord inlet portion 12 and between the core wire 2c inside the cord 2, And a waterproofing barrier (28) for blocking the sealing joint (26) between the circuit boards (20).

In the present invention, the waterproof barrier material 28 is composed of epoxy. The space portion above the outer surface of the printed circuit board 20 in the inner space portion of the cord inlet portion 12 is filled with epoxy to form the waterproofing barrier material 28 by epoxy. The waterproofing barrier 28 is filled between the inlet end of the cord inlet part 12 and the outer surface of the printed circuit board 20 and is inserted into the space inside the inlet end of the printed circuit board 20 and the cord inlet part 12, And at the same time the waterproofing barrier 28 prevents the sealing joint 26 between the printed circuit board 20 and the core wire 2c of the cord 2 at the same time So that it also functions to seal the current connection portion between the core wire 2c in the cord 2 and the printed circuit board 20 as well. The waterproofing barrier material 28 may further comprise a waterproof layer in addition to the sealing joint 26 between the core wire 2c and the printed circuit board 20 in the cord 2. [

A cord cap 16 (AC CORD CAP) is coupled to the cord inlet portion 12 of the case 10. The code cap 16 is for preventing a phenomenon in which the cord 2 or the like coming into the cord inlet portion 12 of the case 10 is removed and solving the problem of authentication. The cord cap 16 is inserted and coupled from the inlet end of the cord inlet section 12 of the case 10 to the cord inlet section 12. Before the epoxy filled in the cord inlet section 12 is cured The cord cap 16 is inserted into the cord inlet portion 12. [ Then, as the epoxy is cured, the waterproofing barrier material (28, 128) 28 of the epoxy material and the cord cap 16 are integrally joined. The cord cap 16 has a hollow portion formed therein by a side wall, a cap plate is provided at the upper end of the side wall, and a cord passage hole is provided in the cap plate. Since the lower end of the side wall of the cord cap 16 is embedded in the epoxy before the epoxy is cured and the lower end of the side wall of the cord cap 16 is embedded in the epoxy to form a fixed structure when the epoxy is cured, The cord cap 16 is coupled to the cord inlet 12 of the case 10 integrally with the waterproofing barrier material 28 made of epoxy. The power cord 2 is inserted into the cord inlet portion 12 of the case 10 while the cord passage hole at the center of the cord cap 16 is inserted into the power cord 2, The outer surface of the printed circuit board 20 and the outer surface of the printed circuit board 20 in the state in which the core wire 2c inside the cord 2 is connected to the printed circuit board 20 disposed in the inner area of the printed circuit board 20, Epoxy is filled in the inner space of the lead-in portion 12 to form a preliminary waterproofing barrier before curing. The preliminary waterproofing material blocks the space between the inlet end of the cord inlet portion 12 and the outer surface of the printed circuit board 20 while covering the entire outer circumferential surface of the cord 2 that has entered the cord inlet portion 12 The code cap 16 is inserted into the cord inlet portion 12 so that the lower end of the cord cap 16 is embedded in the preliminary waterproofing barrier material. The cord cap 16 is embedded in the cord inlet portion 12 of the case 10 and the lower end of the cord cap 16 is embedded in the waterproofing barrier 28 to form an integrally fixed sealing structure . The full sealing structure of the portion in which the power cord 2 is inserted in the slim projected light of the present invention is realized. The outer diameter of the cord cap 16 is preferably slightly larger than the inner diameter of the cord entry section 12 so that the cord cap 16 is inserted into the cord entry section 12 in a press-fit manner. In this case, since the cord cap 16 is tightly coupled tightly to the cord inlet portion 12, it is possible to prevent the cord cap 16 from being easily released.

Therefore, the slim light-emitting lamp according to the present invention can prevent the penetration of water penetrating the inside of the cord 2 while shielding only water such as rainwater that comes in the outside of the cord 2, It is possible to block the incoming water to the inside, thereby achieving the complete waterproofing of the portion where the cord 2 comes in compared with the conventional one. The cord 2 includes an internal exposure embedded in the outer sheath 2a and 2c and the outer sheath 2a and 2c while enclosing the core wire 2c with the outer sheath 2a of the cord 2, The core wire 2c inside the cord 2 and the printed circuit board 20 are brought into contact with the printed circuit board 20 even when the inside of the cord 2 comes into the inside 2c and the inner coat 2b The sealing abutment portion 26 which is connected completely blocks the gap between the joint portion between the core wire 2c of the cord 2 and the printed circuit board 20, It is possible to prevent penetration into the inside of the case 10 through the circuit board 20. Therefore, unlike the conventional case, since the waterproofing of the cord 2 in the case 10 can be performed completely, water, such as rainwater, penetrates into the case 10 through the inside of the cord 2, There is a considerable effect in preventing the accident of the vehicle.

In the present invention, the printed circuit board 20 is hermetically supported by the coupling support portion 14 on the cord inlet portion 12 of the case 10, so that the peripheral portion of the printed circuit board 20 and the cord The gap between the inner circumferential surface of the lead-in portion 12 and the inner circumferential surface of the lead-in portion 12 is completely sealed so that no water enters the inside of the cord 2, Therefore, it is possible to prevent water from penetrating into the inner space of the case 10 in a second step. And a second waterproof structure is realized by the coupling support part 14.

A waterproofing barrier material 28 (epoxy waterproofing barrier material 28) is further provided on the space between the outer surface of the printed circuit board 20 and the inflow end of the cord inflow part 12, The waterproofing barrier 28 blocks the water to be infiltrated, so that the waterproof structure can be realized more reliably. Particularly, even if the water enters the cord inlet portion 12 on the inside of the cord 2, the waterproofing barrier 28 blocks the water that has entered into the cord inlet portion 12, It is possible to more reliably exhibit the completely waterproof effect of preventing water from penetrating into the case 10 because the water is prevented from penetrating into the space portion, that is, the internal space portion of the case 10.

The slim projected light according to another embodiment of the present invention includes a case 10 in which a light source L is embedded and a cord 10 for connecting the cord 2 to the light source L in the case 10. [ A cable gland 114 coupled to the cord inlet 114 and an upper portion of the cable gland 114 and a cord inlet portion 12, And a waterproof barrier 128 for waterproofing between the glands 114. In other embodiments of the present invention, it is to be understood that the same components as those of the above-described embodiment are denoted by the same reference numerals.

Meanwhile, in another embodiment of the present invention, the cable gland 114 has a sleeve structure in which a cord 2 hole communicating with both ends is formed therein. The cable gland 114 is housed in the cord inlet portion 12 of the case 10 and the external power cord 2 passes through the cord 2 inside the cable gland 114 alone. The conductive core wire 2c (copper wire) in the power cord 2 is electrically connected to the main printed circuit board 24 on which the light source L (for example, LED) And are electrically connected through means. The power source is applied to the light source L by the cord 2 to emit light.

The waterproofing barrier 128 is composed of a hardened epoxy filled in the cord inlet portion 12. The cable gland 114 is embedded in the cord inlet portion 12 of the case 10. At this time, the outer circumferential surface of the cable gland 114 is provided with a locking step, and the locking step extends over the inner sealing part in the form of a latching jaw of the cord insertion part 12, Is accommodated and does not fall down. It is more convenient when the cable gland 114 is inserted into the cord inlet portion 12 and arranged. According to another embodiment of the present invention, the epoxy 2 is filled in the cord inlet 114 while the cord 2 passes through the cable gland 114, and the epoxy 120 is cured to cure the waterproofing barrier 128 . In another embodiment of the present invention, the waterproofing barrier 128 seals between the cord 2 and the cord inlet 12 of the case 10 to provide a waterproof function.

9 and 10, the sealing joint 26 may be provided on the inner surface of the printed circuit board 20 (the surface facing the inside of the case 10). The sealing joints 26 may be provided on both the inner and outer surfaces of the printed circuit board 20. [ The sealing abutment 26 seals water between the core wire 2c and the code connection hole 22 of the printed circuit board 20 by the water entering the outer covering 2a of the cord 2, It is important to function to prevent penetration into the inside.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the scope and spirit of the present invention is not limited to these specific embodiments, and that various modifications and changes may be made without departing from the spirit of the present invention. If you have, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

2. Code 2a. Outer cloth
2b. Inner cloth 2c. Core line
10. Case 10A. Bottom cover
10B. Top cover 10C. Glass
11. Heat sink 11a. Heatsink
12. Cord entry 14. Coupling support
14a. Outer sealing member 14b. Inner sealing piece
16. Cord cap 20. Printed circuit board
22. Cord connection hole 24. Main printed circuit board
26. Sealing joint 28. Waterproofing barrier
114. Cable Grand 128. Waterproofing barrier

Claims (11)

A case 10 in which a light source L is embedded;
A cord inlet 12 provided in the case 10 to receive a cord 2 to be connected to the light source L;
A printed circuit board (20) to which a core wire (2c) of the cord (2) entered into the cord inlet (12) is connected;
A coupling support portion 14 for sealingly securing between the cord inlet portion 12 and the printed circuit board 20;
A sealing joint portion 26 joining the core wire 2c inside the cord 2 to the printed circuit board 20 to block a gap between the core wire 2c and the printed circuit board 20; And a light emitting diode (LED).
The method according to claim 1,
The core wire 2c and the printed circuit board 2c are electrically connected to each other through the through hole of the printed circuit board 20 and between the inlet end of the cord inlet 12 and the core wire 2c of the cord 2, And a waterproofing barrier (28) for blocking the sealing joint (26) between the sealing part (20).
3. The method of claim 2,
The cord encapsulant 12 is inserted into the cord cap 16 from the inlet end and the waterproof barrier 28 is provided between the cord cap 16 and the printed circuit board 20 Slim transmission and so on.
The method of claim 3,
Wherein the waterproofing barrier material 28 is formed by filling an epoxy into the cord inlet part 12 and the cord cap 16 is integrally coupled to the waterproofing barrier material 28. [
5. The method of claim 4,
Wherein the epoxy encapsulant is formed by bonding the cord encapsulant (16) to the cord encapsulant (12) before the epoxy is cured in the state where the epoxy encapsulates the cord encapsulant (12) 16) is integrally bonded to the epoxy.
3. The method of claim 2,
The printed circuit board 20 is provided with a code connection hole 22 communicating from the outside to the inside and the core wire 2c of the cord 2 is inserted into the coupling hole of the core wire 2c. Is connected to the printed circuit board (20) by the sealing joint (26) in a state that the space between the core wire (2c) and the code connection hole (22) is blocked.
The method according to claim 1,
The printed circuit board 20 is insert injection-molded into the cord inlet portion 12 of the case 10 to form the coupling support portion 14. The coupling support portion 14 is formed on the printed circuit board 20, (12) of the light emitting diode (10) of the light emitting diode (10).
8. The method of claim 7,
The coupling support portion 14 is in contact with the outer surface and the inner surface of the printed circuit board 20 to support the printed circuit board 20 to be disposed inside the cord inlet portion 12, (14a) and an inner sealing piece (14b).
The method according to claim 1,
The printed circuit board 20 is attached to the cord inlet portion 12 of the case 10 with a tape so that the coupling support portion 14 is formed by the tape, (12) of the substrate (20) so as to be hermetically sealed.
10. The method of claim 9,
The coupling support part 14 is in contact with the outer surface and the inner surface of the printed circuit board 20 so as to be hermetically sealed so that the printed circuit board 20 is held between the outer tape and the inner tape And a tape.
A case 10 in which a light source L is embedded;
A cord inlet 12 through which the cord 2 is connected to the light source L;
A cable gland (114) coupled to the cord inlet (12);
And a waterproofing barrier 128 provided between the upper part of the cable gland 114 and the cord inlet part 12 for watertightness between the cord inlet part 12 and the cable gland 114 Features a slim floodlight.
KR1020140152696A 2014-11-05 2014-11-05 Slim floodlighting KR20160053528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140152696A KR20160053528A (en) 2014-11-05 2014-11-05 Slim floodlighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140152696A KR20160053528A (en) 2014-11-05 2014-11-05 Slim floodlighting

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KR20160053528A true KR20160053528A (en) 2016-05-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101839831B1 (en) * 2017-11-23 2018-05-04 주식회사 대도엘이디(Led) LED light module and LED lighting device having the same
CN110966579A (en) * 2019-12-18 2020-04-07 广州市莱帝亚照明股份有限公司 Waterproof lamp
KR20230169633A (en) * 2022-06-09 2023-12-18 주식회사 지성이엔지 Manufacturing method of waterproof LED light

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101839831B1 (en) * 2017-11-23 2018-05-04 주식회사 대도엘이디(Led) LED light module and LED lighting device having the same
WO2019103342A1 (en) * 2017-11-23 2019-05-31 주식회사 대도엘이디 Waterproof-type led lighting module and led lighting apparatus provided with same
CN110966579A (en) * 2019-12-18 2020-04-07 广州市莱帝亚照明股份有限公司 Waterproof lamp
KR20230169633A (en) * 2022-06-09 2023-12-18 주식회사 지성이엔지 Manufacturing method of waterproof LED light

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