KR20180003957A - LED Module - Google Patents

Abstract

The present invention relates to an LED module for an advertising sign and, more specifically, to an LED module which is installed in the advertising sign and emits light. The LED module for the advertising sign is provided to integrally form a refraction unit, which refracts and refracts light of an LED, and a body of a cover; and to detach the cover from a main body, thereby enabling easy repairing and replacing a PCB having the LED. The LED module for the advertising comprises the main body, and the cover. The main body includes the PCB having the LED; and an upper opening unit. The cover covers an opening unit of the main body. The cover is formed by having a body thereof integrally formed with the refraction unit which refracts and guides the light of the LED so that the cover can be coupled to and detached from the main body.

Description

LED for advertising signboard {LED Module}

[0001] The present invention relates to an advertising LED module,

The present invention relates to an LED module which is installed in an advertising signboard and emits light. The LED module is integrally formed with a body of a refracting cover for refracting and irradiating light of an LED, To an LED module for an advertisement signboard which is easy to repair and replace.

Conventionally, a fluorescent lamp or an incandescent lamp has been mainly used as a light source embedded in an advertising signboard. In recent years, however, a fluorescent lamp or an incandescent lamp has been mainly used, but in recent years it has a small size, a light weight, a small heat generation, a reflecting structure, LED modules are in the spotlight.

The LED module is typically composed of LEDs for driving LEDs and LEDs, and a plurality of main bodies in which the LEDs are installed are installed in the advertisement signboard so that light can be illuminated to better identify the advertisement contents .

As a prior art related to such an advertising signboard LED module, Korean Patent Laid-Open No. 10-2010-0018843 (Feb. 18, 2010) entitled " Signboard LED Module and its Manufacturing Method "

In the conventional art 1, a circuit board on which at least one LED and various elements are formed, and a signboard LED having an exposed portion to which the LED is exposed are coupled to a housing in which a combination of a power supply wire and a conductive screw is injection- Module and a manufacturing method thereof.

1A, the circuit board including the LED 1 can not be replaced or repaired because the circuit board is accommodated in the housing 3, and the LED exposure unit 4, the light emitted from the LED is directly irradiated to the advertisement sign, so that the brightness of the area where the LED is not positioned is lower than the brightness of the area where the LED is illuminated.

Korean Patent No. 10-0780704 (Nov. 23, 2007) "LED Module for Signboard" (hereinafter referred to as " Prior Art 2 ") as a conventional technique for securing a uniform brightness of the entire advertisement signboard,

The conventional art 2 includes a circuit board 5, an LED 1 placed on the circuit board, an LED driving circuit 6 for driving the LED, An LED package element including a pair of leads (8); A strip-shaped base plate having a pair of insertion grooves formed in a longitudinal direction so as to insert the leads of the LED package elements; And a conductive metal thin plate attached to the insert groove and connected to the lead of the LED package element.

1B, a convex lens 7 for focusing light is provided on the upper part of the LED, and the convex lens and the LED driving circuit part are molded by the thermally conductive silicone 9.

However, in the conventional art 2, since the convex lens is molded into the LED, the convex lens can not be replaced or the LED can not be partially replaced or repaired. Therefore, when replacement or repair is required, There is a limitation in that the maintenance and repair cost of the system must be increased.

Accordingly, the present invention has been made to solve the above-mentioned problems,

A cover covering the upper opening of the main body and a refracting portion for refracting the light of the LED so as to be able to replace and repair the PCB having the LED coupled to the inside of the main body, And an LED module for advertisement signboard detachably coupled to the main body.

According to the present invention, there is provided a refrigerator comprising: a cover having a plurality of heat dissipating holes at opposite positions of a cover, And to provide an LED module for advertising signboards.

The present invention is characterized in that a protrusion is formed on a part of a top surface of a side wall of a main body so that a subsequent process can be easily performed in a state where the main body is coupled with the PCB after the PCB is coupled with the main body. And to provide a combined LED module for advertisement sign.

Another object of the present invention is to provide a LED module for a commercial signboard, in which a cover and a main body are coupled to each other through a hooking protrusion provided on a cover and a hook groove formed on a side wall of the main body, .

In order to achieve the above object, the LED module for advertisement signboard according to the present invention comprises:

A main body having an upper opening and a built-in PCB having LEDs; And

And a cover covering an opening of the main body,

The cover is integrally formed with a body and a refracting portion for refracting and irradiating the light of the LED, and is detachably coupled to the main body.

Further, in the LED module for an advertising signboard according to the present invention, the PCB is coupled to be supported by being in contact with an upper surface of a side wall of the main body so as to form a space between the main body and the cover, And a plurality of radiating holes provided at positions mutually opposing to each other to communicate with each other.

In the LED module for an advertising signboard according to the present invention, the main body includes protrusions protruding from the upper surface of a part of the side walls, so that the PCB is positioned below the uppermost height of the side walls. do.

Further, in the LED module for advertising signboard according to the present invention, the cover includes a hook projection projecting in the coupling direction with the main body and having a projection at an end,

And a side wall of the main body includes a hook groove having a corresponding tang to engage with the protrusion.

The LED module for advertisement signboard according to the present invention includes a body of a cover covering an upper opening of a main body in which a LED with a PCB is installed and a refracting portion for refracting the light of the LED to irradiate the LED, Thereby enabling the manufacturing cost of the cover having the refracting portion to be reduced and the ease of manufacture to be secured,

It is easy to manufacture LED module. In case of failure of PCB component parts, it is possible to replace PC obesity separately or to repair components, so that the cost of maintaining and repairing the advertising signboard can be reduced.

Further, the LED module for advertisement signboard according to the present invention is combined with a space to form a space between the PCB and the cover, and the cover includes a plurality of rooms provided at positions facing each other so that the inside and the outside of the main body communicate with each other Since the air is convected by the spacing space and the radiating hole to dissipate the heat radiated from the PCB, the heat dissipating effect is very excellent. In particular, since the radiating holes are located at mutually opposite positions, It is possible to prevent the heat radiation effect from being deteriorated because the convection is smoothly performed due to the characteristics of the air.

Further, in the LED module for advertisement signboard according to the present invention, the protrusion is provided on the upper surface of a part of the side wall constituting the main body so that the PCB is positioned below the uppermost height of the side wall, It is possible to prevent the LED or various devices of the PC from being damaged or damaged due to contact with the work table or the like.

In addition, the LED module for advertisement signboard according to the present invention can be easily assembled because the cover and the main body are hooked together, so that the cover can be easily attached and detached even when replacing or repairing the PCB due to a failure.

1 is a view for explaining a conventional LED module.
2 is a perspective view of an LED module for an advertisement signboard according to the present invention.
3 is an exploded perspective view of an LED module for an advertising signboard according to the present invention.
4 and 5 are a transverse side view and a longitudinal sectional view of the LED module for advertising signboard according to the present invention.
6 is a view illustrating an example of an installation of an LED module for an advertisement signboard according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the digits of the tens and the digits of the digits, the digits of the digits, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the LED module for an advertising signboard according to the present invention, when an unambiguous approximate direction reference is specified with reference to FIG. 2 for convenience, the direction in which the gravitational force acts is set downward, and the upward, downward, leftward and rightward directions are determined as shown.

In particular, the direction shown in Figs. 3 and 4 is referred to as a front face, and the opposite direction is referred to as a rear face. Unless otherwise specified in the description and claims of the invention relating to other drawings, directions are specified according to this standard.

Hereinafter, an LED module for an advertisement signboard according to the present invention will be described with reference to the accompanying drawings.

2 to 5, the LED module according to the present invention includes a main body 10 coupled to an advertising signboard, a PCB 20 coupled to the receiving portion of the main body 10, And a cover 30 covering an upper opening of the housing 10.

As shown in FIGS. 2 and 3, the main body 10 has a box shape having a predetermined length in the left-right direction, and a receiving portion 11 in which the PCB 20 can be housed is inserted into the front, 12).

The body 10 may have a circular, triangular or square shape depending on the shape of the PCB 20.

In this specification, the side walls provided at both longitudinal ends of the receptacle are referred to as the left and right side walls 12B and the side walls provided therebetween are referred to as the front and rear side walls 12A. However, The shape of the side wall according to the direction designation can be expressed differently, and therefore the interpretation of the right of the present invention should not be limited.

A pair of through holes 14 through which electrical power is supplied to the PCB 20 are provided in the left and right side walls 12B of the main body 10, A guide wall 18 protruding upward is provided so that a pair of input and output wires 19 passing through the through holes 14 are partitioned from each other along the longitudinal direction so as to be positioned in the accommodating portion 11. [

A guide protrusion 17 protruding inwardly from the inner side of the front and rear side walls 12A of the main body 10 and supporting the substrate 22 of the PCB 20 is provided, The height of the jaw 17 may be the same or the height of the guide wall may be lower than the height of the base.

The PCB 20 includes a substrate 22, one or more LEDs 21 provided on the upper surface of the substrate 22, and a plurality of devices 23 for driving the LEDs 21.

The device 23 is formed of a transistor or a resistor and is coupled to the upper surface of the substrate 22 in a soldering manner. A pattern 22 for electrically connecting the devices 23 to the LED 21 is formed on the substrate 22, .

The number of the LEDs 21 is not limited, and the plurality of LEDs 21 may be arranged in a row, in a multi-row arrangement, or in an irregular arrangement.

The substrate 22 is provided with a coupling hole 24 formed to penetrate through the coupling hole 24 and the bolt member 26 is screwed to fix the PCB 20 to the main body 10 .

The electrical connections between the wires 20 and the wires 19 passing through the receiving portion 11 via the through holes 14 of the main body 10 are required. Likewise, the bolt member 26 penetrates through the coupling hole 24 and the end of the threaded portion is directly coupled to the electric wire 19, so that the electrical connection and the fixing of the RFID chip 20 can be performed at the same time.

A plating layer (not shown) for electrical connection (for example, copper) is formed on a portion of the bolt member 26 where the head of the bolt member 26 contacts the upper surface of the PCB 20, So as to be electrically connected to the LED 21 and various small intestines through the pattern of the substrate 22.

In the case of the electric wire 19, the pair of connection holes 24 are formed on the substrate 22 so that the electric wire 19 is divided into the front and rear parts by the guide wall 18, It is preferable that they are provided at mutually opposed positions corresponding to the fixed positions.

Guide grooves 25 are provided at both ends of the substrate 22 and guide protrusions 15 are slidably coupled to the guide grooves at the left and right side walls 12B of the main body, So that the PCB is seated in the center of the receiving portion 11 of the main body.

2 to 4, the cover 30 covering the upper opening of the main body 10 is made of synthetic resin such as acrylic having transparency and includes a body 31, And a refracting portion 32 for refracting and irradiating the light of the light-emitting portion 32 is integrally formed.

The body 31 is preferably in the form of a plate corresponding to the shape of the main body 10, and is preferably in contact with the upper surface of the side wall of the main body 10 to ensure hermeticity.

The refracting portion 32 provided in the middle of the body 31 has a dome shape having a space portion 34 therein. The refracting portion 32 is provided with a concave lens or a convex lens or a mixed form thereof, The light of the LED 21 may be widely diffused and irradiated, or the light may be concentrated and irradiated onto a certain region of the advertisement interception.

That is, as shown in an upper left perspective view of FIG. 4A, the refracting portion 32 is provided in the form of a concave lens having a wide portion 32a around the rim and a narrow portion 32b at the center The light of the LED 21 disposed at the center of the space portion 34 is refracted and irradiated to the advertisement signboard, thereby preventing the occurrence of a contrast difference over the entire advertising signboard.

The angle of refraction of the concave lens-shaped refracting portion 32 may vary depending on the thickness of the narrow portion and the wide portion.

4, the refracting portion 32 has a narrow width portion 32c around the rim and a wide width portion 32d at the center, as shown in the right interior perspective view of Fig. 4A according to the type and characteristics of the advertising sign The light of the LED 21 disposed in the center of the refracting space can be intensively irradiated to a certain portion of the advertising signboard.

The cover 30 integrally formed with the body 31 and the refracting portion 32 is detachably attached to the upper opening of the main body 10 to increase the convenience of manufacturing the LED module, The repair of the corresponding part or the replacement of the PCB 20 can be easily performed.

The attachment / detachment between the cover 30 and the main body 10 will be described later in detail.

3 and 4, the PCB 20 is held in contact with the upper surface of the side wall of the main body 10 so as to form a space between the cover 30 and the cover 30,

The cover 30 includes a plurality of radiating holes 33 disposed at positions facing each other so that the inside and the outside of the main body 10 communicate with each other.

Since the spacing space is formed between the cover 20 and the cover 30, the space above the cover 20 in the main body 10 can communicate with each other,

Since the heat dissipation holes 33 are provided at the positions facing each other in the cover 30, the heat radiated from the PCB 20 is naturally convected through the spacing space and the heat dissipation holes 33, So that the heat radiation effect is obtained.

3, when two pairs of the heat dissipation holes 33 positioned on the front and rear sides of the cover 30 are arranged on the right and left sides of the cover 30,

6, when the LED module according to the present invention is installed in the advertisement signboard S, the heat radiation holes 33 correspond to the convection direction (lower side to upper side) of the air due to heat generation So that the heat radiation function through air convection can be increased.

In the drawings of the present specification, three LEDs 21 are arranged in a line on the substrate 22 of the PCB 20, and therefore, four heat dissipation holes 33 are provided at positions opposed to each other However,

This may vary depending on the position of the LED 21, the shape of the PCB 22 (including the main body 10), and the like. Therefore, the concept of the plurality of heat dissipation holes 33 provided at positions facing each other in this specification Not only the structural design of the heat discharging holes 33 shown in the figure but also the structure around the rim of the cover 30 or the cover 30 according to the structural design of the heat discharging holes 33, (For example, when five LEDs are arranged in a row on the PCB 20), a plurality of LEDs 33 are arranged on the LED 20, A pair of the radiating holes 33 provided at the front and rear ends of the cover may be arranged at four places in the right and left directions or a place where the covers 30 are arranged at the centers of the front and rear left and right ends respectively, (20) If the form or a plurality of louvers (33) provided radially along the rim of the cover 30, form a plurality of louvers (33) which is provided centrally in the direction in which the rim radially disposed, and so on),

This can be sufficiently predicted and reproduced by a person skilled in the art (hereinafter referred to as a person skilled in the art), and the interpretation of the right of the present invention should not be construed as limited by the drawings.

Next, the main body 10 of the present invention comprises protrusions 13 protruding from the upper surface of a part of the side wall 12. As shown in Fig.

The concept that the protruding portion 13 is provided on the upper surface of a part of the side wall is a concept that the protruding portion 13 is provided on a part of the top, rear, left and right side walls 12 surrounding the accommodating portion 11, 12B are provided with protrusions 13 on the upper surface thereof.

The LED 21 and the various elements 23 protruding upward from the PCB 20 embedded in the receiving portion 11 of the main body 10 by the protruding portion 13 are positioned at a position higher than the uppermost height of the side wall 12 By being coupled to the lower side,

When the main body 10 is turned upside down and another operation is performed (for example, a process of attaching a double-sided tape to the underside of the main body 10), the LEDs 21 and the elements 23, The operator can easily and quickly carry out the work without fear of damage or breakage of the PCB 20.

This is because the LED module can not be stably maintained by the shape of the refracting portion 32 when the LED module in which the cover 30 and the main body 10 are assembled is turned upside down. (Diffusing and focusing) function of the light is generated by generating gas or the like on the outer surface of the dome-shaped refracting portion 32 when the main body 10 is turned upside down while being assembled with the main body 10, .

Therefore, according to the present invention, it is possible to complete the LED module by assembling the cover 30 after performing another process before assembling the cover 30 to the main body 10, thereby improving the convenience of manufacture.

In the LED module according to the present invention, the cover 30 and the main body 10 are detachably attached to each other.

3, the cover 30 includes a hook projection 36 projecting in a direction of engagement with the main body 10 and having a protrusion 36A protruding inward at an end thereof, The side wall 12 of the main body 10 includes the hook groove 16 having the corresponding step 16A in the form of an outer step so as to be engaged with the protrusion 36A,

The hook protrusion 16 and the hook groove 16 are engaged with each other while being hooked together so that the cover 30 can be easily attached and detached.

It is preferable that a plurality of the hook protrusions 16 are provided along the rim of the cover 30 in order to assure a firm binding force between the cover 30 and the main body 10 and to assure ease of detachment. A pair of hook protrusions 16 are provided on the front and rear edges of the main body 10 and the hook grooves 16 are provided on the front and rear side walls 12A of the main body 10 so as to correspond to the hook protrusions 16, .

Further, the hook protrusions 16 are provided so as to correspond to the positions adjacent to the heat-releasing holes 33, thereby further ensuring ease of manufacture of the cover 30.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the above-described embodiments, and various modifications, changes, and alterations can be made by those skilled in the art. Substitutions should be construed as falling within the scope of protection of the present invention.

S: Advertising sign 10: Body
11: receptacle 12: side wall
13: protrusion 14: through hole
15: guide projection 16: hook groove
17: Supporting jaw 18: Guide wall
20: Fee 21: LED
22: substrate 23: element
24: engaging hole 25: guide projection
30: Cover 31: Body
32: refraction part 33:
34: space portion 36: hook projection

Claims (4)

A main body having an upper opening and a built-in PCB having LEDs; And
And a cover covering an opening of the main body,
Wherein the cover is integrally formed with a body and a refracting portion for refracting and irradiating light of the LED, and is detachably coupled to the main body. The method according to claim 1,
The cover is coupled to the upper surface of the main body so as to be spaced apart from the cover,
Wherein the cover comprises a plurality of heat dissipation holes provided at positions facing each other so that the inside and the outside of the main body communicate with each other. 3. The method of claim 2,
Wherein the main body includes protrusions protruding from an upper surface of a part of the side walls so that the PCB is positioned below the uppermost height of the side walls. 4. The method according to any one of claims 1 to 3,
The cover includes a hook projection projecting in a direction of engagement with the main body and having a projection at an end thereof,
And the side wall of the main body includes a hook groove having a corresponding tang to engage with the protrusion.

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