KR20190010782A - Filament type light emitting diode bulb - Google Patents

Abstract

The present invention relates to an LED bulb which emits light by emitting a light from an LED module, the LED bulb including a + lead-in wire and a lead-in wire inserted into the frame and supporting a top extension wire and a bottom extension wire, And a second lower extension connected to the lead-in line. The upper extension is supported by the frame so that the two upper extensions are electrically isolated from each other, and one side of the one upper extension is connected to the first lower extension and the second lower extension And the other end of the one upper extension is connected to the second lower extension via the LED module.
According to the present invention, since the bar type is linear and is filament type, it is positioned between the lower extension and the upper extension, and the LED module is easily connected through the structure of the lower extension and the upper extension, thereby reducing work cost and mass production There is an effect to make.

Description

{FILAMENT TYPE LIGHT EMITTING DIODE BULB}

The present invention relates to an LED bulb, and more particularly, to an LED bulb capable of forming a light distribution pattern such as an incandescent lamp by arranging bar-shaped LED modules in a filament form.

Generally, an illumination lamp is a general illumination means used to provide light to illuminate an object in the night or to illuminate an object to convert an electric energy into light energy, and to provide a simple structure and a base It is easy to supply power by socket connection type, so electric bulb which is easy to use is widely used.

Incandescent lamps are made by injecting a glass bulb containing a filament into a vacuum, sealing the inert gas, passing the current through the filament, and emitting the light by temperature radiation. However, since the power efficiency and light efficiency are low, .

The LED light bulb includes a base for supplying a DC power source to the LED module, a power connection part made of a metal material for supplying an external AC power to the base, An LED module including a plurality of LED chips which are installed and emit light by being supplied with power from a base portion, and a spherical transparent portion for protecting the LED module.

In the prior art related to the present invention, the LED lamp bulb and the 4 < [chi] > exiting LED rod of Korean Patent Laid-Open Publication No. 10-2013-0079524 include a core column having an LED lamp bulb cover, an exhaust pipe and a frame, An LED lamp bulb comprising an LED light emitting rod having a chip, a driver and an electrical connector, wherein the LED lamp bulb cover is vacuum sealed with the core column to form a vacuum sealing chamber, wherein the vacuum sealing chamber has a low viscosity coefficient, A gas having a high conductivity is charged and the LED light-emitting rods fixed to the frame and the frame are accommodated in the vacuum-sealed chamber, the LED light-emitting rods are sequentially electrically connected to the driver and the electric connector, Discloses an LED lamp bulb which is electrically connected to an external power source to light an LED light emitting rod.

However, the prior art is inconvenient to work because the external power source and two or four LED light emitting rods are connected to the core column by the output lead wire, the metal wire on the core column, and the metal wire on the pillar, Are connected in series and a single LED light emitting rod malfunctions, there is a problem that the circuit stability is deteriorated due to load variation.

Therefore, it is possible to reduce the manufacturing cost by simplifying the arrangement structure for fixing the LED modules to each other by connecting them together, and to improve the working efficiency in the mass production and at the same time, it is possible to minimize the influence to other LED modules even if one LED module malfunctions, Development of light bulbs is required.

1. Korean Patent Publication No. 10-2013-0079524

The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to simplify the arrangement structure of connecting and fixing LED modules, And to provide an LED bulb capable of minimizing the influence on other LED modules even if a malfunction occurs, thereby enhancing circuit stability.

According to an aspect of the present invention, there is provided an LED bulb which emits light by emitting an LED module, the LED bulb including a frame supporting an upper extension and a lower extension, And a second lower extension connected to the lead-in line, wherein the upper extension is electrically independent of the two upper extensions and is supported on the frame, and one side of the one upper extension is connected to the first And the other end of the one upper extension is connected to the second lower extension via the LED module.

According to an embodiment of the present invention, the upper extension line and the lower extension line have a part of an extension connected to the frame is straight and the other extension part is circular. By making the diameter of the upper extension and the diameter of the lower extension the same or different And the light distribution pattern of the LED module is changed.

According to an embodiment of the present invention, the LED modules connected to one upper extension line are connected in series, and the LED modules connected to one upper extension line and the LED modules connected to the other upper extension line are connected in parallel .

According to an aspect of the embodiment of the present invention, the LED module may further include a reflector connected to the frame at the lower portion of the lower extension and reflecting the light emitted from the LED module through the central portion of the bulb to the outside.

According to an aspect of the embodiment of the present invention, one side may be connected to the upper extension wire or the lower extension wire, and the other side may further include a lead wire having a plurality of contacts so that at least two LED modules can be connected in parallel.

An LED bulb according to an embodiment of the present invention includes a frame for supporting an upper extension wire and a lower extension wire, the LED bulb emitting light to the outside by emitting an LED module, wherein the lower extension wire is connected to a first lower part And a second lower extension connected to the extension and the lead, and the upper extension is supported by the frame so that the two upper extensions are electrically isolated from each other, and the lower extension is located within the vertical range of each upper extension which is electrically independent And the LED modules connected to the lower extension are connected to the respective upper extension wires electrically independent of each other.

According to the present invention, since the LED module is connected through the structure of the lower extension line and the upper extension line, the workability is improved by the linear type of bar type and the filament type is positioned between the lower extension line and the upper extension line, It has the effect of enabling mass production.

In addition, even if one LED module is defective, it has circuit stability because it does not affect the LED module which is located in the other side.

1 is a structural view of an LED bulb according to an embodiment of the present invention.
2 is a structural view of a frame to which an LED module is connected through an extension according to an embodiment of the present invention.
3 is a perspective view of a frame to which a lower extension and an upper extension are connected according to an embodiment of the present invention.
4 is a schematic circuit diagram of an LED module connected to a power source according to an embodiment of the present invention.
5 is a view illustrating a structure of a lead wire capable of connecting a plurality of LED modules according to an embodiment of the present invention.

The following detailed description is merely an example, and is merely an example of the present invention. Further, the principles and concepts of the present invention are provided for the purpose of being most useful and readily explaining.

Accordingly, it is not intended to provide a more detailed structure than is necessary for a basic understanding of the present invention, but it should be understood by those skilled in the art that various forms that can be practiced in the present invention are illustrated in the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a structural view of an LED bulb according to an embodiment of the present invention.

As shown in FIG. 1, the LED bulb 1000 includes an LED driver 4 for driving an LED module by supplying power to an LED module by receiving external commercial power through a power connection unit, 4 for supplying the direct current power to the LED module 2, a lead wire 5 connected to the LED module 2, a frame 3 for supporting an extension capable of adjusting an installation position, and an LED module And the LED bulb cover (1).

The LED driving unit 4 may include a swithched mode power supply (SMPS) and an LED driver IC for performing control for driving the LED module. The LED driver IC can control the LED module to output a constant light output through constant current control or constant voltage control.

The extension part is divided into a lower extension and an upper extension. A part of the extension is connected to the frame side to support the LED module, and a part extending from a part of the extension, the LED module is connected to the upper extension A description will be given with reference to FIG. 2 and FIG. 3 in order to improve workability in connection between the upper extension and the lower extension.

The LED bulb cover (1) may be formed in various shapes for light irradiation such as a circular shape and a PAR type, and one end is connected to the power connection part, so that the LED module can be protected from the external environment and protected.

The frame 3 may be connected to a reflector 50 that can reflect light emitted from the LED module in a predetermined direction. The reflector 50 may be connected to the frame of the lower portion of the lower extension. The reflector 50 may reflect light through a central portion of the LED bulb which may be relatively shaded according to the irradiation range of the LED modules connected at a predetermined slope between the upper extension line and the lower extension line. The reflector 50 may be a mirror for reflecting light, but may be made of various materials capable of reflecting light. The reflector 50 may have a flat surface or a predetermined curved surface. The reflector 50 may have a suitable structure for reflecting light to the outside through the central portion of the LED bulb. For example, the reflector 50 may have a concave shape with a predetermined curved surface inclination corresponding to the irradiation range of the LED module Lt; / RTI >

The LED module 2 of the LED bulb 1000 according to the present invention is linearly bar-shaped and positioned between the lower extension and the upper extension in the form of a filament, and is easily connected to the LED module through the structure of the lower extension and the upper extension The workability is improved and cost reduction and mass production are possible. Hereinafter, a specific structure of the upper extension line and the lower extension line of the present invention will be described, and an LED bulb capable of adjusting the light irradiation direction (light distribution pattern) and improving the workability when the LED module is connected will be described.

FIG. 2 is a structural view of a frame to which an LED module is connected through an extension according to an embodiment of the present invention, and FIG. 3 is a perspective view of a frame to which a lower extension and an upper extension are connected according to an embodiment of the present invention.

2 and 3, the LED bulb includes a frame 10 having a predetermined shape (for example, a columnar shape) for supporting the lead wires 5a and 5b and the extensions 21, 22, 41 and 42 can do. The frame may be made of an insulator such as glass, and an inner space capable of receiving the lead wires 5a and 5b may be formed at the lower end of the frame. The lead wire 5 is connected to the lead wires connected to the positive electrode and the negative electrode and is connected to the lower wires 21 and 22 to supply the direct current power to the LED module 2 have. + Lead line 5a is connected to the first lower extension line 21 in the inner space of the frame and the first lower extension line 21 can extend outside the frame through the lower extension support 11 of the frame 10 have. Here, it is described that the + lead line 5a and the first lower extension line 21 can be electrically connected to each other. However, the present invention is not limited to this, and it can be understood as a metal line for supplying power to the LED module. And a portion where the metal wire is extended to the outside of the frame and has a predetermined shape and connected to the LED module can be understood as a lower extension.

The first lower extension 21 can be held in a fixed state by the frame and can be formed in a circular shape. The first lower extension may have a portion of an extension connected to the frame and a remaining extension of the extension may be positioned at a predetermined distance from the frame along the periphery of the frame in a circular shape. The first lower extension line 21 can be formed so that the length of the extension part formed by the straight line is adjusted so that the remaining extension part has a predetermined diameter around the frame. The lead wire 5b is connected to the second lower extension wire 22 in the inner space of the frame and the second lower extension wire 22 can extend out of the frame through the lower extension wire support 11 of the frame 10 have. The structure of the second lower extension 22 is the same as that of the lead wire connected to the first lower extension described above, and thus a detailed description thereof will be omitted.

An upper extension support 12 protruding outward is formed at an end of a column extending upward from the center of the lower extension support 11 of the frame 10 and the upper extension support 12 is connected to a first The upper extension 41 and the second upper extension 42 may be located. One end of the first upper extension 41 and the second upper extension 42 are connected to the upper extension support 12 and a part of the extension corresponds to the lower extension, And can be positioned along the periphery of the frame.

The LED module 2 is composed of a plurality of LED elements and can be electrically connected between the upper extension line and the lower extension line through the lead lines 31 and 32 in the bar type. Referring to FIG. 6, the lead wires 31 and 32 may have a structure in which one side is connected to an upper extension or a lower extension, and the other side is branched from one side so as to have a plurality of contacts so that at least two LED modules can be connected in parallel. By applying the lead wires 31 and 32 having a plurality of contact portions, it is possible to easily add the LED module to the other LED module without affecting the LED module. The LED module may include a heat sink made of metal such as aluminum for emitting heat on one side. The lead-in wire, the upper extension wire, the lower extension wire, and the lead wire may be a copper-nickel alloy wire or a copper-nickel wire wire. The LED module is made of filament type and can have a light irradiation characteristic capable of irradiating light in all directions.

3 (b), the first LED module 2a is connected between the first lower extension wire 21 and the first upper extension wire 41, and the second LED module 2a is connected to the first upper extension wire And the first LED module 2a and the second LED module 2a are connected in series to each other by being connected to the first lower extension wire 41 and the second lower extension wire 22. [ The third LED module 2c is connected between the first lower extension line 21 and the second upper extension line 42 and the fourth LED module 2d is connected between the second upper extension line 42 and the second lower extension line 42. [ 22, and the third LED module 2c and the fourth LED module 2d are connected in series. That is, the upper extension is supported by the frame 10 so that the two upper extension lines 41 and 42 are electrically isolated from each other, and one side of the upper extension line 41 is connected to the first lower extension line 21 through the LED module And the other side of the one upper extension line 41 is connected to the second lower extension line 22 through the LED module so that two LED modules are connected in series and two LEDs connected to another upper extension line The LED modules can be connected in parallel or in parallel with the modules.

The circular shape of the upper extension line and the lower extension line can be adjusted by making the frame 10 have the same or different diameters with respect to the origin, thereby adjusting the light distribution pattern (light irradiation direction) of the LED module. For example, when the diameter of the lower extension is larger than the diameter of the upper extension, the light distribution portion of the LED module is inclined toward the frame so that the light irradiation direction is inclined upward. In the same case, the light irradiation direction may be horizontal . When the upper and lower extensions are viewed from the vertical direction, the upper and lower extension lines intersect with each other in the range of 90 degrees. Therefore, in order to adjust each installation position of the four LED modules, So that the light distribution pattern can be easily adjusted so as to have an optimum light irradiation direction. That is, the lower extension of the LED bulb of the present invention is located within the vertical range of each upper independent extension which is electrically independent, so that the LED modules connected to the lower extension can be easily connected to the respective upper extension which is electrically independent.

Since one lower extension line of the present invention is mutually intersecting with the two upper extension lines which are electrically independent, the LED module is adjusted to have a predetermined interval between the LED modules in the connection operation (for example, It is possible to perform a work quickly using a predetermined jig having an interval of 90 [deg.]. That is, when the LED module is connected between the upper extension line and the lower extension line using the jig, the LED module can be connected to the LED module in various directions quickly and easily through soldering instead of connecting the LED module only at the predetermined position. Accordingly, when the LED module is connected under the upper and lower extensions of the present invention, there is no need to further fix the lead wire connected to the frame to support the LED module when the LED module is connected, There is also no need to connect the work. Therefore, by connecting the LED module easily through the structure of the lower extension and the upper extension of the present invention, workability is improved, and cost reduction and mass production are possible.

4 is a schematic circuit diagram of an LED module connected to a power source according to an embodiment of the present invention.

As shown in FIG. 4, the LED bulb of the present invention can be configured by using only the upper extension line and the lower extension line, in which two LED modules are connected in series and the other two LED modules are connected in parallel ( a)). This is superior to the circuit configuration (see (b)) in which two LED modules are connected in parallel and connected in series with another two LED modules. For example, referring to FIG. 4B, a circuit structure is formed in which the LED modules 2c and 2d are connected in parallel to each other by the connection line 8 between the LED modules 2a and 2b connected in series In this case, when one of the LED modules is defective, the other three LED modules are affected, causing circuit instability, resulting in a tilting phenomenon, and shortening the life of the LED module. 4 (a), LED modules 2a and 2b or 2c and 2d located in the first lower extension line and the second lower extension line are electrically connected to each other in series between the upper extension lines 41 and 42, If one of the LED modules is defective, it affects only the other LED module in the same spot, but it does not affect the LED module in the other spot and it will have excellent circuit stability.

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, I will understand.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

1000: LED bulb 1: LED bulb cover
2, 2a, 2b, 2c, 2d: LED module 3: frame
4: LED driver 5: lead-in wire
5a: + lead-in wire 5b: - lead-in wire
10: frame 11: lower extension support
12: upper extension supporting portion 21: first lower extension
22: second lower extension line 31,32: lead wire
41: first upper extension 42: second upper extension
50:

Claims (6)

In an LED bulb that emits light by emitting an LED module,
And a frame supporting the upper extension and the lower extension,
The lower extension comprises a first lower extension connected to the + lead and a second lower extension connected to the - lead,
Wherein the upper extension is connected to the first lower extension via an LED module, and the other end of the one upper extension is connected to the second lower extension < RTI ID = 0.0 > And an LED module.
The method according to claim 1,
The upper extension line and the lower extension line have a part of the extension line connected to the frame and a remaining extension line part having a circular shape and the light distribution pattern of the LED module is changed by making the diameter of the upper extension line equal to or different from the diameter of the lower extension line LED light bulb.
The method according to claim 1,
Wherein the LED modules connected to one upper extension line are connected in series and the LED modules connected to one upper extension line and the LED modules connected to the other upper extension line are connected in parallel.
The method according to claim 1,
And a reflector connected to the frame at the lower portion of the lower extension and reflecting the light emitted from the LED module through the central portion of the bulb to the outside.
The method according to claim 1,
Further comprising a lead wire having a plurality of contacts so that one side is connected to the upper extension or the lower extension and the other side is capable of connecting at least two or more LED modules in parallel.
In an LED bulb that emits light by emitting an LED module,
And a frame supporting the upper extension and the lower extension,
The lower extension comprises a first lower extension connected to the + lead and a second lower extension connected to the - lead,
The upper extension is supported by the frame so that the two upper extensions are electrically isolated from each other,
Wherein the lower extension is located within a vertical range of each upper extension which is electrically independent and connects the LED modules connected to the lower extension to the respective upper extension which is electrically independent.

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