JP2011040377A - Lighting device and socket included therein - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device using a converter constituted of a few internal elements and especially including no capacitors and inductors at all, which can separate a socket from a body for prolonging a service life, and further can reduce power consumption for improving power factor; and to provide the socket included in the lighting device. <P>SOLUTION: The lighting device has the excellent power factor even though it is formed of a compact structure. The device includes a light emitter 104 having at least one light-emitting element, a full-wave rectifying circuit 100 to rectify AC power, and a driving circuit 102 to change a low first current to an amplified constant current serving as the driving current of the lighting device. A second current outputted from the driving circuit 102 is supplied to the light emitter 104, and is larger than that of the first current. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a lighting element having a small size and an excellent power factor, and a socket included therein.

In general, fluorescent lamps and incandescent lamps are mainly used as illumination lamps, but recently they are being replaced by LED illumination lamps due to environmental friendliness and reduction of CO2 exhaust gas.
Conventional LED illumination lamps are basically composed of a plurality of light emitting diodes (LEDs) and ballasts for driving them.

The ballast includes a magnetic type and an electronic type. In the electronic type, the inverter type drives the plurality of LEDs through a PWM (Pulse Width Modulation) control method.
That is, a PWM drive system is used and includes a rectifier circuit, a noise filter, and a PWM control unit.
The noise filter removes noise generated by PWM driving.

The PWM control unit controls the PWM drive using a large number of capacitors and inductors.
The LED illuminating lamp including such a ballast is an integrated type. Therefore, when the lifetime of some elements of the LED illuminating lamp is exhausted, for example, when the lifetime of the ballast is exhausted, the LED illuminating lamp is It must be discarded and a new LED lighting must be used.
Generally, the lifetime of the LED is about 50,000 hours, whereas the lifetime of the capacitor is about 3000 to 8000 hours. As a result, the lifetime of the capacitor and the inductor is exhausted before the lifetime of the LED is exhausted. Therefore, there is a problem that the LED illumination lamp must be replaced after about 3000 hours.

In addition, since the ballast uses a large number of elements (components), the size and cost of the ballast must be increased. Of course, the reliability of the ballast with many elements must be lowered.
In addition, since the PWM driving method is a method of continuously providing a constant amount of direct current to the LED, the power consumption of the LED illumination lamp cannot be minimized. Furthermore, since the LED lighting uses a large number of capacitors and inductors, a phase difference may occur between the current and voltage provided from the LEDs by the capacitors and the inductor. As a result, there is a problem that the power factor of the LED lighting lamp is lowered and it is difficult to obtain the efficiency of the LED lighting lamp of 85% or more.
In order to solve such a power factor problem, the conventional LED lighting has to be provided with a power factor compensation circuit, and as a result, the size of the ballast is further increased.

A first object of the present invention is to provide an illumination element using a converter composed of a small number of internal elements, in particular including no capacitors and no inductors, and a socket included therein.

A second object of the present invention is to provide a lighting element that allows the socket to be separated from the main body and extends its life.

A third object of the present invention is to provide a lighting element that reduces power consumption and improves a power factor, and a socket included therein.

A fourth object of the present invention is to provide a method for maximizing the brightness of an illumination element by energizing a constant current only at a limit voltage or higher with a period twice that of an AC input power supply.

To achieve the above object, an illumination device according to an embodiment of the present invention includes a light emitting unit having at least one light emitting device; and a driving circuit unit that changes an input first current to a constant current. . Here, the second current output from the driving circuit unit is provided to the light emitting unit, and the second current is larger than the first current.

The drive circuit unit includes a constant current unit that changes the first current to the constant current; and a drive circuit operation control unit that is connected to the constant current unit and amplifies the first current to the second current.

The constant current unit includes at least one constant current diode, and the drive circuit operation control unit includes a transistor connected to the constant current diode; and a plurality of resistors connected to the transistor and used for the amplification. including.

The constant current diode is connected to the base and collector of the transistor, one of the resistors is connected to the emitter of the transistor, and the other resistor is connected to the base of the transistor and the constant current diode. .

The constant current unit includes a first sub constant current unit including a plurality of first constant current diodes connected in series; and a plurality of the constant current units connected in parallel with the first constant current diode. A second sub-constant current portion including the second constant-current diode.

The second current is implemented in a pulse form with a period twice as long as that of the AC input power source, and a time difference between the pulses is smaller than a time during which a person can recognize the flickering of the light emitting element.

The lighting element further includes a rectifier circuit unit connected to the drive circuit unit, and the rectifier circuit unit includes at least one fuse; and a plurality of diodes constituting a bridge circuit.

The light emitting unit includes LED modules arranged in series with each other, the drive circuit unit and the light emitting unit are included in a main body of the lighting element, and the rectifier circuit unit is a socket connected to the main body. Although included, the body and the socket are separable.

The main body includes a body part that is a heat-dissipating conductor; a conductor substrate arranged on the first surface of the body part; the LED module arranged on one surface of the substrate; and arranged between the body part and the substrate. A heat transfer pad portion; and the drive circuit portion arranged on the second surface opposite to the first surface in the body portion, each LED module having a plurality of LEDs arranged in parallel, The drive circuit unit is separated from the second surface of the body unit by a predetermined distance.

The main body includes a body part which is a heat-dissipating conductor; a non-conductive substrate arranged on the first surface of the body part; the LED module arranged on the board; and an LED module arranged on the board between adjacent LED modules. A first pattern portion that is a conductor; a second pattern portion that is a conductor arranged on a surface opposite to the surface on which the first pattern portion is arranged on the substrate; and is arranged between the body portion and the substrate, A heat transfer pad portion that is an insulator; and the drive circuit portion arranged on a second surface opposite to the first surface in the body portion, each LED module having a plurality of LEDs arranged in parallel The driving circuit unit is spaced apart from the second surface of the body unit, and at least one of the first pattern units is electrically connected to the corresponding second pattern unit through one or more holes. Is .

The light emitting unit is arranged on a first surface of the body unit, and the drive circuit unit is arranged on a second surface opposite to the first surface in the body unit.

The drive circuit unit includes: a drive circuit substrate; a constant current unit arranged on the drive circuit substrate; a heat dissipation substrate formed on the drive circuit substrate; the transistor arranged on the heat dissipation substrate; and the heat dissipation substrate. The constant current unit and the transistor may be spaced apart from each other, including a heat dissipation unit connected to the transistor.

An illumination element according to another embodiment of the present invention includes a light emitting unit having at least one light emitting element; and a driving circuit unit that drives the light emitting element using at least one constant current diode.

The drive circuit unit includes the constant current diode; a transistor connected to the constant current diode; and at least one resistor connected to the transistor and used for amplification.

The illumination element further includes a rectifier circuit unit connected to the drive circuit unit. The rectifier circuit unit includes at least one fuse; and a plurality of diodes constituting a bridge circuit.
A lighting device according to another embodiment of the present invention includes a body part that is a heat dissipation conductor; a substrate that is arranged on a first surface of the body part; at least one light emitting module that is arranged on the substrate; and the body part. And a heat transfer pad portion arranged between the substrate and the substrate.

The illumination element further includes the drive circuit unit arranged on a second surface opposite to the first surface in the body portion, and the light emitting module includes at least one light emitting element.

The substrate is a conductor, the light emitting module is arranged on an insulated portion of the substrate, and the drive circuit unit includes at least one constant current diode.

The drive circuit unit includes: a drive circuit board; the constant current diode arranged on the drive circuit board; a heat dissipation board formed on the drive circuit board; and arranged on the heat dissipation board and connected to the constant current diode. The constant current diode and the transistor are spaced apart from each other, and the heat dissipation part connected to the transistor on the heat dissipation substrate.

The drive circuit unit is arranged at a predetermined distance from the second surface of the body unit.
The substrate is a nonconductor, the light emitting module is included in a light emitting portion, and the heat transfer pad portion is an insulator. The light emitting portion is a first pattern portion which is a conductor arranged between adjacent light emitting modules on the substrate; and a conductor arranged on a surface opposite to the surface where the first pattern portion is arranged on the substrate. And at least one of the first pattern portions is electrically connected to the corresponding second pattern portion through one or more holes.

The body part, the substrate, the light emitting module, the heat transfer pad part, and the driving circuit part are included in a main body, and the lighting element further includes a socket coupled to the main body.
Here, the socket is separable from the main body, and the socket includes a rectifier circuit unit that rectifies the input power.

A lighting device according to another embodiment of the present invention includes a body part that is a heat dissipation conductor; a substrate that is arranged on a first surface of the body part; at least one light emitting module that is arranged on the substrate; and the body part. Including a driving circuit unit that is arranged on a second surface opposite to the first surface and that changes an input current to a constant current, and the resistance of the constant current unit is connected to the lighting element. It is set to be different depending on the input voltage and the voltage applied to the light emitting module.
The constant current part includes at least one constant current diode, the lighting element further includes a heat transfer pad part arranged between the body part and the substrate, and the light emitting module includes at least one light emitting element. Have

The substrate is a conductor, and the light emitting module is arranged on an insulated portion of the substrate.

The drive circuit unit includes: a drive circuit board; at least one constant current diode arranged on the drive circuit board; a heat dissipation board formed on the drive circuit board; and the constant current diode arranged on the heat dissipation board. And a heat dissipation part connected to the transistor on the heat dissipation substrate. Here, the constant current diode and the transistor are arranged apart from each other.
The drive circuit unit is arranged at a predetermined distance from the second surface of the body unit.

The substrate is a nonconductor, the light emitting module is included in a light emitting portion, and the heat transfer pad portion is an insulator.

The light emitting portion is a first pattern portion which is a conductor arranged between adjacent light emitting modules on the substrate; and a conductor arranged on a surface opposite to the surface where the first pattern portion is arranged on the substrate. And at least one of the first pattern portions is electrically connected to the corresponding second pattern portion through one or more holes.

The body part, the substrate, the light emitting module, and the drive circuit part are included in a main body, and the lighting element further includes a socket coupled to the main body. Here, the socket is separable from the main body, and a rectifier circuit section for rectifying the input power supply is arranged in the socket.

In a socket used in a lighting element having a main body according to an embodiment of the present invention, the socket is separable from the main body, and the socket includes a rectifier circuit unit that rectifies an input power source.

The rectifier circuit unit includes a rectifier substrate; a fuse; and a plurality of diodes arranged on the rectifier substrate and connected to the fuse.

The main body includes a body part which is a heat-dissipating conductor; a light emitting substrate arranged on the first surface of the body part; at least one light emitting module arranged on the light emitting substrate; and between the body part and the light emitting substrate. A heat transfer pad portion arranged; and a drive circuit portion arranged on a second surface opposite to the first surface in the body portion. Here, the light emitting module includes at least one LED, and the drive circuit unit includes at least one constant current diode.

A lighting device according to another embodiment of the present invention includes a first rectifier circuit unit that converts an AC power source into a DC power source; an electrical current that is electrically connected to the first rectifier circuit unit and is output from the first rectifier circuit unit. A light emitting unit having at least one light emitting element that emits light; and a drive circuit unit that is electrically connected to the light emitting unit and controls the current flowing through the light emitting unit to be a constant current.
Here, the current output from the first rectifier circuit unit sequentially passes through the light emitting unit and the drive circuit unit.

The drive circuit unit includes a constant current unit that controls the current flowing through the light emitting unit to be a constant current; and a drive circuit operation control unit that controls the operation of the drive circuit unit, and the first rectifier circuit unit includes: The operation control unit includes a transistor connected to the constant current unit.

The constant current unit includes at least one constant current diode, and a cathode end of the constant current diode is connected to a base of the transistor.

The constant current unit includes a first sub constant current unit including a plurality of first constant current diodes connected in series; and a plurality of the constant current units connected in parallel with the first constant current diode. A second sub-constant current portion including the second constant-current diode.

The constant current is embodied in a pulse form with a period twice the frequency of the AC power supply, and a time difference between the pulses is smaller than a time during which a person can recognize the flickering of the light emitting element.

The lighting element further includes a second rectification circuit unit electrically connected to the drive circuit unit, and one terminal of the AC power supply unit is connected to the first rectification circuit unit, The terminal is connected to the second rectifier circuit unit, and the first rectifier circuit unit and the second rectifier circuit unit constitute a bridge circuit.

The light emitting unit is included in a main body of the lighting element, and the first rectifying circuit unit and the driving circuit unit are separately provided outside the main body.

The lighting element further includes an integrated body; and sockets connected to both ends of the body. The first rectifier circuit unit, the light emitting unit, and the drive circuit unit are included in the body. The socket is separable from the main body.

Each of the sockets includes a protrusion formed by a hook method. A hole is formed on the outer peripheral surface of the main body, and the socket is coupled to the main body by inserting the protrusion into the hole.

The lighting element further includes a main body substrate, and a plurality of first grooves and a plurality of second grooves are formed on an inner surface of the basic member of the main body. Here, the main body substrate is inserted into the plurality of first grooves and arranged in the longitudinal direction of the main body, and a plurality of light emitting modules having at least one LED are arranged on one surface of the main body substrate. A driving circuit board on which the driving circuit section is arranged is inserted into the plurality of second grooves, and a rectifying circuit board on which the first rectifying circuit section is arranged is inserted into the plurality of second grooves. The

The hue of the first part facing the light emitting part in the basic member is thinner than the hue of the second part facing the drive circuit board in the basic member, and the thickness of the first part is larger than the thickness of the second part. The first part is thin and is implemented to have a diffusion function.

The main body substrate is made of polyvinyl chloride (PVC), and the light emitting module is screwed to the main body substrate.

The main body substrate is made of aluminum (Al), the light emitting modules are arranged on the light emitting substrate, and a heat transfer pad portion is arranged between the main body substrate and the light emitting substrate.

The front surface of the light emitting substrate is coated with a non-conductive material, and the light emitting module is positioned on a portion coated with the non-conductive material. The light emitting unit is arranged on a surface opposite to a surface on which the first pattern unit is arranged on the light emitting substrate; and a first pattern unit which is a conductor arranged between adjacent light emitting modules on the light emitting substrate. A second pattern portion that is a conductor, and at least one of the first pattern portions is electrically connected to the corresponding second pattern portion through one or more holes.

The drive circuit unit includes: the drive circuit board; a constant current unit arranged on the drive circuit board; a heat dissipation board formed on the drive circuit board; a transistor arranged on the heat dissipation board; The lighting device includes a heat dissipating unit connected to the transistor, and the constant current unit and the transistor are spaced apart from each other.

Since the converter of the lighting element according to the present invention is composed of a small number of elements, the size and cost of the converter are reduced, and the reliability of the converter is improved.
In addition, since the lighting element does not use a capacitor or an inductor, the life of the lighting element can be extended. Here, since the socket can be separated from the main body and can be easily replaced when necessary, the utilization of the lighting element can be improved.
In addition, since the lighting element does not use a capacitor or an inductor, a phase difference between current and voltage provided to the light emitting element does not occur, and as a result, the power factor is improved and the efficiency of the lighting element is improved.
Furthermore, since the current output from the drive circuit unit provided to the light emitting element is discontinuous, power consumption of the lighting element can be reduced. Of course, the time difference between pulses due to the discontinuity is embodied in a time range in which a person cannot recognize the flickering of the light emitting element.

FIG. 3 is a view showing a lighting device according to a first embodiment of the present invention. FIG. 2 is a diagram illustrating a circuit configuration of the illumination element of FIG. 1 according to an embodiment of the present invention. FIG. 3 is a view showing a lighting device according to a second embodiment of the present invention. FIG. 4 is a diagram illustrating a circuit configuration of the illumination element of FIG. 3 according to an embodiment of the present invention. FIG. 3 is a view illustrating an illumination element including an exterior converter according to an embodiment of the present invention. FIG. 3 is a view illustrating a lighting device including a built-in converter according to an embodiment of the present invention. FIG. 7 is a view specifically showing the illumination element of FIG. 6 according to an embodiment of the present invention. FIG. 3 is a view illustrating a lighting device in which a converter according to another embodiment of the present invention is implemented. FIG. 3 is a view specifically showing a lighting device including a built-in converter according to another embodiment of the present invention. These are figures which showed the structure of the rectifier circuit part by one Example of this invention. These are the figures which showed the external shape of the illumination element by one Example of this invention. FIG. 3 is a view illustrating a structure of a socket according to an embodiment of the present invention. These are sectional drawings which showed the internal structure of the main body of the illuminating device by 1st Example of this invention. FIG. 3 is a view illustrating a connection relationship of light emitting modules according to an embodiment of the present invention. These are drawings showing a structure of a driving circuit unit according to an embodiment of the present invention. These are sectional drawings which showed the internal structure of the main body of the illuminating device by 2nd Example of this invention. These are drawings showing a structure of a light emitting module according to an embodiment of the present invention. These are the figures which showed the external shape of the illumination element by 2nd Example of this invention. FIG. 19 is a diagram illustrating an internal structure of the illumination element of FIG. 18 according to an embodiment of the present invention. These are sectional drawings which showed the arrangement | sequence relationship of the component of the illumination element by 2nd Example of this invention. These are the drawings which showed the structure of the drive circuit part by other Examples of this invention. These are sectional drawings which showed the internal structure of the main body of the illuminating device by other Example of this invention.

Since the present invention can be modified in various ways and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this should not be construed as limiting the invention to the specific embodiments, but should be understood to include all modifications, equivalents or alternatives that fall within the spirit and scope of the invention. In describing the drawings, like reference numerals have been used for like elements.
When a component is referred to as being “coupled” or “connected” to another component, it may be directly coupled or connected to another component, but in the middle It should be understood that the following components may be present. On the other hand, when a component is referred to as being “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.
The terms used in the present application are merely used to describe particular embodiments, and are not intended to limit the present invention. The singular expression includes the plural unless the context clearly indicates otherwise. In this application, terms such as “include” or “have” mean that there are features, numbers, steps, operations, components, parts, or combinations thereof, as described in the specification. It should be understood that it does not exclude in advance the presence or possible addition of one or more other features, numbers, steps, actions, components, components or combinations thereof.
Unless defined differently, all terms used herein, including technical or scientific terms, are the same as commonly understood by one of ordinary skill in the art to which this invention belongs. Has the meaning of The same terms as defined in commonly used dictionaries should be construed as having the same meaning as in the context of the related art, and are ideal unless explicitly defined in this application. Or it is not interpreted in an overly formal sense.

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

FIG. 1 is a view illustrating a lighting device according to a first embodiment of the present invention.
Referring to FIG. 1, the illumination element of this embodiment functions as an illumination lamp, and includes a rectifier circuit unit (100), a drive circuit unit (102), and a light emitting unit (104).
According to an embodiment of the present invention, the illumination element is an LED illumination lamp that uses light emitting diodes (LEDs).

The rectifier circuit unit (100) is arranged at the input end of the lighting element, and generates a direct current by half-wave rectifying or full-wave rectifying an AC power source input from the outside, for example, 110V or 220V AC power source.
However, since a person must recognize that the lighting element continuously emits light, the rectifier circuit unit (100) performs full-wave rectification on the input AC power supply as shown in FIG. Is preferred.

When the lighting element uses an LED, the LED is turned on when a specific voltage or more is applied to the LED. Therefore, the current output from the rectifier circuit unit (100) is shown in FIG. As shown, it has a pulse waveform.
That is, the rectifier circuit unit (100) performs full-wave rectification on the input AC power supply to generate a voltage waveform and a current waveform as shown in FIG.

The drive circuit unit (102) is connected to the rectifier circuit unit (100), outputs a constant current with a voltage provided from the rectifier circuit unit (100), and applies the constant current to the light emitting unit (104).
The voltage and current output from the driving circuit unit (102) may have a pulse waveform as shown in FIG.
When the current waveform is examined in detail, there is a time difference (Δt) between the pulses. However, since the time difference (Δt, experimental result 4 ms) is smaller than the minimum time (14 ms) in which a person can perceive the flickering of the lighting element, the person cannot move the lighting element even though the current is discontinuous. Recognize that light radiates continuously.

The light emitting unit (104) includes a plurality of light emitting elements, and a plurality of LEDs having a long life and excellent light emission efficiency can be used as the light emitting elements. Of course, the light emitting element need not be limited to the LED as long as it emits light.
In short, in the illumination element of the present embodiment, the current output from the drive circuit unit (102) is discontinuous, and the PWM control method is not used as will be described later.
Hereinafter, the circuit configuration of the illumination element of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating a circuit configuration of the illumination element of FIG. 1 according to an embodiment of the present invention.
Referring to FIG. 2, the illumination element of the present embodiment includes a rectifier circuit unit (100), a drive circuit unit (102), and a light emitting unit (104).

The rectifier circuit unit (100) includes a fuse (Fuse, F), a varistor (Varistor, RV) which is a non-linear semiconductor resistance element, and a rectifier circuit.
The rectifier circuit is a circuit that performs half-wave rectification or full-wave rectification of an input alternating current.
According to an embodiment of the present invention, the rectifier circuit may be implemented as a bridge circuit including four diodes (D1 to D4) as shown in FIG.
The connection relationship of the rectifier circuit unit (100) will be described in detail. One terminal of the fuse (F) and the varistor (RV) is connected to the (+) electrode terminal, and the first diode (D1) and the second diode (D2). ) Between the nodes (n1).
The other terminal of the varistor (RV) is connected to the (−) electrode terminal, and is connected to the node (n2) between the third diode (D3) and the fourth diode (D4).
Such a rectifier circuit unit 100 is implemented so as to be included in the socket as will be described later in consideration of the ease of replacement.

Next, the drive circuit unit (102) will be described in detail. The drive circuit unit (102) includes a constant current unit (200), a temperature compensation unit (202), and a drive circuit operation control unit (204).

The constant current unit (200) changes the input small current (i1) into an amplified constant current, and may be composed of at least one constant current diode, for example.

According to an embodiment of the present invention, the constant current unit 200 is connected in series with a first sub constant current unit 210 having two constant current diodes D5 and D6 connected in series. In addition, the second sub constant current part (212) including two constant current diodes (D7 and D8) may be included.
The reason why the constant current diodes in the sub constant current units (210 and 212) are connected in series is to withstand the withstand voltage. Specifically, assuming that an AC power supply of 110 V is applied to the lighting element and a voltage of 3 V is applied to each light emitting element, if 102 V is applied to the entire light emitting element, the base and collector of the transistor (TR) are applied. 8V can be applied between them.
That is, the voltage (VBC, withstand voltage) between the base and collector of the transistor (TR) is 8V.
Here, since the constant current diodes (D5 to D8) of the sub constant current parts (210 and 212) are connected between the base and collector of the transistor (TR), the constant current diodes (D5 to D8) are 8V. Must endure. Therefore, the user can determine the number of constant current diodes in consideration of withstand voltage. That is, the user determines the number of the constant current diodes (resistance of the constant current unit (200)) in consideration of the input AC voltage and the number of the light emitting elements.

The arrangement relationship of the sub constant current parts (210 and 212) will be described in detail. The constant current diodes (D5 and D6) in the first sub constant current part (210) and the constant current in the second sub constant current part (212). The diodes (D7 and D8) are connected in parallel with each other. This is to finely adjust the magnitude of the current (i2) output from the drive circuit unit (102).
That is, the number and arrangement method of the constant current diodes of the constant current unit (200) are determined in consideration of adjustment of withstand voltage and current (i2).

In the above description, each sub constant current unit (210 and 212) includes the same number of constant current diodes, but may include a different number of constant current diodes. In addition, although the constant current unit (200) is illustrated as including only two sub constant current units (210 and 212), it may include only one sub constant current unit, and may include three or more sub constant current units. Can also be included. In addition, at least one of the constant current diodes used in the constant current unit (200) may have different characteristics from other diodes.

Referring to FIG. 2 again, the temperature compensation unit 202 serves to compensate the temperature of the constant current diodes D5 to D8.

The drive circuit operation control unit (204) includes a transistor (TR) and a plurality of resistors, for example, two resistors (R2 and R3).
The transistor (TR) is an NPN transistor for amplification, for example, and generates a lot of heat.
However, since the constant current diode adjacent to the transistor (TR) is sensitive to heat, the transistor (TR) can be spaced apart from the constant current diode by a predetermined distance or more. A detailed description thereof will be described later with reference to the accompanying drawings.

The connection relationship of the transistor (TR) will be described in detail. The collector of the transistor (TR) is connected to the node (n5), and the base is connected to the node (n6).

The resistor (R2) is connected to the node (n6), that is, connected to the base of the transistor (TR).
The resistor (R3) is connected to the emitter of the transistor (TR) and is connected in parallel to the resistor (R2).
The amplification factor (G) of the drive circuit operation control unit (204) having such a structure is as shown in Equation 1 below.

ここで、βはトランジスタ（ＴＲ）の増幅率を意味する。
即ち、駆動回路動作制御部（２０４）は、定電流部（２００）に入力される小電流（ｉ１）を増幅率（Ｇ）で増幅させ、上記増幅による電流（ｉ２）を出力させる。
定電流部（２００）と駆動回路動作制御部（２０４）を全体的に考慮すると、駆動回路動作制御部（２０４）から出力される電流（ｉ２）は、定電流部（２００）の定電流ダイオードと駆動回路動作制御部（２０４）の抵抗（Ｒ２及びＲ３）より影響を受ける。従って、使用者は上記定電流ダイオードと抵抗（Ｒ２及びＲ３）を適切に設定して所望の電流（ｉ２）を発生させることができる。
一般的に発光素子の数が多くなると、上記発光素子に印加される電流（ｉ２）もまた大きくならなければならない。従って、使用者は上記発光素子の数及び輝度の大きさを考慮して、上記定電流ダイオード及び抵抗の数と配列を設定する。もちろん定電流ダイオードのみを用いて電流（ｉ２）を制御することも可能だが、上記定電流ダイオードのみを用いると上記駆動回路が複雑になり得る。従って、上記定電流ダイオードと抵抗を共に用いて電流（ｉ２）を制御することが好ましい。(Formula 1)

Here, β means the amplification factor of the transistor (TR).
That is, the drive circuit operation control unit (204) amplifies the small current (i1) input to the constant current unit (200) with the amplification factor (G), and outputs the current (i2) resulting from the amplification.
Considering the constant current unit (200) and the drive circuit operation control unit (204) as a whole, the current (i2) output from the drive circuit operation control unit (204) is the constant current diode of the constant current unit (200). And the resistance (R2 and R3) of the drive circuit operation control unit (204). Therefore, the user can appropriately set the constant current diode and the resistors (R2 and R3) to generate a desired current (i2).
Generally, when the number of light emitting elements increases, the current (i2) applied to the light emitting elements must also increase. Accordingly, the user sets the number and arrangement of the constant current diodes and resistors in consideration of the number of the light emitting elements and the magnitude of luminance. Of course, it is possible to control the current (i2) using only the constant current diode, but if only the constant current diode is used, the driving circuit may be complicated. Therefore, it is preferable to control the current (i2) using both the constant current diode and the resistor.

According to one embodiment of the present invention, the current (i2) applied to the light emitting element of the light emitting unit (104) has a waveform as shown in FIG.
In short, unlike the conventional LED illuminating lamp that generates a constant current by the PWM method, the lighting element of the present embodiment uses a constant current unit (200) and a drive circuit operation control unit (204) to generate a constant current (i2). generate. Here, the constant current unit (200) does not need to be limited to a constant current diode as long as a constant current is generated. .

FIG. 3 is a view illustrating a lighting device according to a second embodiment of the present invention.
Referring to FIG. 3, the illumination element of the present embodiment includes a rectifier circuit unit (300), a light emitting unit (302), and a drive circuit unit (304). Here, unlike the first embodiment, the drive circuit unit (304) is connected to the rear end of the light emitting unit (302).
The drive circuit unit (304) is electrically connected to the light emitting unit (302), specifically, connected to the light emitting element included in the light emitting unit (302), for example, the cathode end of the LED, and the rectifying circuit unit (300). ).

As a result, the current output from the rectifying circuit unit (300) is input again to the rectifying circuit unit (300) after flowing through the light emitting unit (302) and the driving circuit unit (304).
The driving circuit unit (304) controls the constant current to flow through the light emitting unit (302), and the voltage and current output from the driving circuit unit (304) are pulse waveforms as shown in FIG. Can have.

Hereinafter, the circuit configuration of the illumination element of the second embodiment will be described in detail with reference to the accompanying drawings.
4 is a diagram illustrating a circuit configuration of the illumination element of FIG. 3 according to an embodiment of the present invention.
Referring to FIG. 4, the illumination element of the present embodiment includes a rectifier circuit unit (300), a light emitting unit (302), and a drive circuit unit (304).

The rectifier circuit unit (300) can be implemented as a bridge circuit using four diodes (D1 to D4), and performs half-wave rectification or full-wave rectification.
The light emitting unit (302) is composed of, for example, a plurality of LEDs, and the plurality of LEDs are connected in series as shown in FIG. Therefore, the current output from the rectifier circuit unit (300) flows through the plurality of LEDs, and as a result, the plurality of LEDs output light of a specific wavelength.

The drive circuit unit (304) includes a constant current unit (400), a drive circuit operation control unit (402), and a temperature compensation unit (R1).

The constant current unit (400) is connected to the output terminal of the light emitting unit (302) and controls the constant current to flow through the light emitting unit (302), and may be composed of at least one constant current diode, for example.
For example, the constant current unit 400 includes a first sub constant current unit 410 including two constant current diodes D5 and D6 connected in series and two constant current diodes connected in series. A second sub-constant current portion (412) composed of D7 and D8) may be included.
Since the operation and control of the sub constant current units (410 and 412) are similar to those of the first embodiment, description thereof will be omitted below.

The drive circuit operation control unit (402) includes a transistor (TR) and a plurality of resistors, for example, two resistors (R2 and R3).
The connection relationship of the transistor (TR) will be described in detail. The collector of the transistor (TR) is connected to the cathode end of the last light emitting element of the light emitting unit (302), and the base is the sub constant current unit. (410 and 412).
The resistor (R2) is connected to the base of the transistor (TR), and the resistor (R3) is connected to the emitter of the transistor (TR).
The resistors (R2 and R3) serve to control the magnitude of current flowing through the light emitting unit (302).
In short, unlike the conventional LED illuminating lamp that generates a constant current by the PWM method, the lighting element of this embodiment controls the constant current using the constant current unit (400) and the drive circuit operation control unit (402).
Hereinafter, the illumination element of the present invention and a conventional LED illumination lamp will be compared.

(lifespan)
A conventional LED lighting uses a ballast composed of a rectifier circuit, a noise filter, and a PWM controller to drive the LED. Here, the PWM control unit varies the pulse width to keep the current provided to the LED constant, and uses a large number of capacitors and inductors for the PWM control.
In general, the lifetime of the capacitor and the inductor (about 3000 to 8000 hours) is considerably shorter than the lifetime of the LED (about 50000 hours). Nevertheless, since the LED lighting is embodied as an integrated type, the LED lighting must be replaced with a new LED lighting even though the capacitor and the inductor can be used for a longer time. I must.
On the other hand, the lighting element of the present invention uses only a transistor (TR), a constant current diode, and a resistor having a life longer than that of an LED without using a capacitor and an inductor having a short life. As a result, the lifetime of the illumination element can be made considerably longer than that of a conventional LED illumination lamp.

(Reliability and price)
A conventional ballast for an LED lighting lamp includes the rectifier circuit, the noise filter, and the PWM control unit, and the PWM control unit includes a plurality of internal elements. This increases the size and cost of the ballast and reduces the reliability of the ballast. Further, the PWM driving method may generate considerable noise.
On the other hand, in the lighting element of the present invention, the converter including the rectifier circuit unit (100, 300) and the drive circuit unit (102, 304) uses only a small number of internal elements. It can be considerably smaller than that. In particular, in the converter, since the rectifier circuit unit (100, 300) is included in the socket as will be described later, only the drive circuit unit (102, 304) is arranged in the main body, and as a result, arranged in the main body. The number of converter parts can be further reduced.
Further, since the converter uses a small number of internal elements, the cost of the converter is reduced and the reliability is improved.
In addition, since the illumination element outputs a current (i2) using only a resistor or the like, noise is hardly generated.

(Current control method)
Conventional LED illuminating lamps use a PWM control method to maintain the magnitude of current applied to the LEDs above the minimum magnitude that the LEDs can emit. That is, in the conventional LED lighting, the LED continuously maintains the light emission state while the power is on. As a result, the power consumption of the LED lighting is increased.
On the other hand, in the illumination element of the present invention, as shown in FIGS. 1 and 3, the current (i2) applied to the light emitting element is not continuous but discontinuous. However, since the time difference (Δt) between pulses is small, a person cannot recognize the flickering of the lighting element. As a result, the illumination element can reduce power consumption while functioning as an illumination lamp. In addition, the luminance of the illumination element can be made higher than the luminance of the LED illumination lamp by maintaining the magnitude of the current (i2) applied to the light emitting element larger than the magnitude of the current of the conventional LED illumination lamp. In this case, the power consumption of the lighting element is similar to the power consumption of the conventional LED lighting.

(Power factor)
Since the conventional LED lighting uses a large number of capacitors and inductors, a phase difference occurs between the current and voltage applied to the LED. As a result, the power factor of the LED lamp is low, and it is difficult to realize the efficiency of the LED lamp to 85% or more. Therefore, the conventional LED illuminating lamp needs to include a power factor compensation circuit separately.
On the other hand, since the light emitting device of the present invention uses only a resistor and the like without using a capacitor and an inductor, a phase difference between a current and a voltage applied to the light emitting device does not occur and a theoretical power factor is 1. is there. As a result, the efficiency of the light emitting device of the present invention is considerably increased, so that it can be used for illumination lamps of various standards. In addition, since the illumination element of the present invention has an excellent power factor, the illumination element does not require a separate power factor compensation circuit unlike a conventional LED illumination lamp.

FIG. 5 is a view illustrating an illumination element including an exterior converter according to an embodiment of the present invention.
Referring to FIG. 5, in the lighting device of the present invention, the converter (502) may be implemented in an exterior type. That is, the converter (502) including the rectifier circuit portion and the drive circuit portion is formed outside the main body (510) including the light emitting portion. Here, sockets (512) are coupled to both ends of the main body (510), and electrodes are formed through the sockets (512).
According to an embodiment of the present invention, the socket (512) is separable from the body (510), and the converter (502) is connected to an electrode arranged through one of the sockets (512). .

FIG. 6 is a view illustrating a lighting device having a built-in converter according to an embodiment of the present invention, and FIG. 7 is a view specifically illustrating the lighting device of FIG. 6 according to an embodiment of the present invention. .
Referring to FIG. 6, the lighting device of the present invention may be implemented with a built-in converter.
That is, the converter is included in the main body (610) as shown in FIG. Here, the terminals (700a and 700b) of the AC power supply unit are connected to the rectifier circuit unit (300) included in the converter through one of the sockets (612).

A specific structure of the lighting element in which the converter is built-in will be described later with reference to the accompanying drawings.
FIG. 8 is a view illustrating a lighting device in which a converter according to another embodiment of the present invention is implemented, and FIG. 9 illustrates a lighting device including a built-in converter according to another embodiment of the present invention. FIG. FIG. 10 is a diagram illustrating a configuration of a rectifier circuit unit according to an embodiment of the present invention.
Referring to FIG. 8A, in the lighting element of the present invention, the converter (802) may be implemented in an exterior type.
That is, the converter (802) including the rectifier circuit portion and the drive circuit portion is formed outside the main body (810) including the light emitting portion.

According to one embodiment of the present invention, one end of the converter (802) is connected to the body (810) through one of the sockets (812a and 812b), and the other end of the converter (802) is connected to the body through the other socket. (810).
As a result, the (+) terminal or the (−) terminal of the AC power source is electrically connected to the main body (810) through one of the sockets (812a and 812b), and the other terminal of the AC power source is It is electrically connected to the main body (810) through another socket.
Referring to FIG. 8B, the lighting element of the present invention may be implemented with a built-in converter. Here, the (+) terminal or the (−) terminal of the AC power supply unit is electrically connected to the main body (830) through one of the sockets (832a and 832b), and the other terminal of the AC power supply unit is the other. It is electrically connected to the body (830) through the socket.

According to an embodiment of the present invention, the built-in converter is implemented by a first rectifier circuit unit (910), a second rectifier circuit unit (912), and a drive circuit unit (916) as shown in FIG. be able to.
Here, one terminal (900a) of the AC power supply unit is connected to the first rectification circuit unit (910), and the other terminal (900b) of the AC power supply unit is connected to the second rectification circuit unit (912). That is, the built-in converter of the lighting element includes two rectifier circuit portions (910 and 912). Of course, the converter may be implemented with only one rectifier circuit unit.
If the rectifier circuit units 910 and 912 are described in detail, the first rectifier circuit unit 910 is implemented by diodes D1 to D4 as shown in FIG. 10, and the second rectifier circuit unit 912 is provided. Can be implemented by diodes D5 to D8. However, one end (900a) of the AC power supply unit is connected to a node between the diodes (D1 and D2) in the first rectifier circuit unit (910), and the other end (900b) of the AC power supply unit is connected to the first rectifier circuit unit (910). It is connected to a node between the diodes (D7 and D8) in the two rectifier circuit units (912). As a result, the rectifier circuit portions (910 and 912) operate as one bridge circuit.

Hereinafter, an actual embodiment of the illumination element of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 11 is a view illustrating an outer shape of a lighting device according to an embodiment of the present invention, and FIG. 12 is a view illustrating a structure of a socket according to an embodiment of the present invention.
Referring to FIG. 11, the lighting element of the present embodiment includes a main body (1100) and sockets (1102 and 1104).
The main body (1100) includes an upper lid (1110) and a lower lid (1112), and protects the light emitting element and the driving circuit unit (102, 304) located therein.

The upper lid (1110) is made of a material that can sufficiently transmit light emitted from the light emitting element.

The lower lid 1112 is made of a conductive material and may be implemented to have a concavo-convex structure as shown in FIG. 11 for a heat dissipation effect.

The sockets (1102 and 1104) are coupled to the side surface of the main body (1100) as shown in FIG. 11, and are screwed to the main body (1100) through, for example, fastening portions (1200) each having a hole.
One of the sockets (1102 and 1104) of the present invention includes a rectifier circuit section (100, 300) as shown in FIG. Although not shown in detail, the rectifier circuit portions (100, 300) have a structure in which diodes (D1 to D4) and the like are arranged on a specific substrate.
Hereinafter, it is assumed that the rectifier circuit unit (100, 300) is included in the socket (1102) among the sockets (1102 and 1104).

According to an embodiment of the present invention, the electrode (1120) serving as a power supply path may be formed through the substrate of the rectifier circuit unit (100, 300) as shown in FIG.
In short, the rectifier circuit portion (100, 300) of the lighting element of this embodiment is included in the socket (1102), and the drive circuit portion (102, 304) and the light emitting portion (104, 302) are included in the main body (1100). Can be included.
Therefore, when the life of the fuse (F) of the rectifier circuit unit (100, 300) is exhausted, only the socket (1102) can be replaced to continuously use the lighting element.

Hereinafter, the internal structure of the main body (1100) including the drive circuit units (102, 304) and the light emitting units (104, 302) will be described in detail with reference to the accompanying drawings.
FIG. 13 is a cross-sectional view illustrating an internal structure of a main body of a lighting device according to a first embodiment of the present invention, and FIG. 14 is a view illustrating a connection relationship of light emitting modules according to an embodiment of the present invention. Specifically, FIG. 13A is a cross-sectional view of the main body 1100 cut in the vertical direction, and FIG. 13B is a cross-sectional view of the main body 1100 cut in the longitudinal direction.
Referring to FIGS. 13A and 13B, the body (1100) includes a body (1300) made of, for example, aluminum (Al), which is a conductor.

According to one embodiment of the present invention, the light emitting portions (104, 302) are arranged on one surface (first surface) of the body portion (1300), and on the other surface (second surface) of the body portion (1300). Are arranged with drive circuit portions (102, 304).

The light emitting units (104, 302) may include a first substrate (1302), at least one light emitting module (1304), and a heat transfer pad unit (1306). Of course, the heat transfer pad part (1306) is not included in the light emitting part (104, 302) and may exist separately.

The first substrate (1302) is a heat dissipation conductor made of a specific metal.

The light emitting modules (1304) are arranged on one surface (first surface) of the first substrate (1302) as shown in FIGS. 13 (A) and 13 (B). Here, the upper surface of the first surface of the first substrate (1302) is insulatively plated. The light emitting modules (1304) are arranged in series in the longitudinal direction on the first surface of the first substrate (1302).
As a result, the current output from the drive circuit unit (102, 304) sequentially flows through the light emitting module (1304). Here, the light emitting module (1304) may include only one light emitting element, or may include a plurality of light emitting elements.
However, each light emitting module (1304) preferably includes a plurality of light emitting elements. For example, assume that each light emitting module (1304) is composed of three LEDs connected in parallel as shown in FIG. Here, each light emitting module 1304 may include a corresponding mount surface, three LEDs arranged on the mount surface, three anode electrodes, and three cathode electrodes.
The current output through the first LED (1402a, 1402b and 1402c) and the first cathode electrode (1404a, 1404b and 1404c) is supplied to the second LED (1408a, 1408b and 1408c) through the second anode electrode (1410a, 1410b and 1410c). Provided. Subsequently, the current that has passed through the second LED (1408a, 1408b, and 1408c) and the second cathode electrode is applied to the third LED at the rear end.
If only one LED exists in the light emitting module (1304), current may not flow through the light emitting modules (1304) arranged after the light emitting module (1304) when the LED fails.
However, as shown in FIG. 14, if the light emitting module (1304) includes three LEDs connected in parallel to each other, even if one LED fails, the current is transmitted through the remaining LEDs to the rear light emitting module (1304). ).
For example, even if one (1408a) of the second LEDs (1408a, 1408b, and 1408c) fails, current can flow to the rear light emitting module (1304) through the remaining LEDs (1408b and 1408c). As a result, the illumination element can normally perform a light emitting operation.

The heat transfer pad part (1306) may be formed on a second surface of the first substrate (1302) opposite to the first surface, and may be formed of a thermal resistor having a low thermal resistance. In general, since a large amount of heat is generated from the light emitting element, the generated heat must be released to the outside. Therefore, in the lighting element of this embodiment, the first substrate (1302) and the body part (1300) are formed on the heat dissipating conductor, and the heat generated from the light emitting element is externally transmitted through the first substrate (1302) and the body part (1300). To release.

However, the second surface of the first substrate (1302) may not be completely flat. Therefore, the illumination element of the present embodiment improves the flatness by arranging the heat transfer pad part (1306) on the second surface of the first substrate (1302).
In this case, since the heat transfer efficiency may be lowered by the heat transfer pad portion (1306), the heat transfer pad portion (1306) is formed of a material having a low heat resistance to maintain the heat transfer efficiency.
Here, the material of the heat transfer pad portion (1306) may be a non-insulator or an insulator.

The drive circuit portions (102, 304) are arranged on the second surface of the body portion (1300), which is a heat radiating conductor, and include a second substrate (1308) and a drive circuit element (1310) such as a constant current diode. be able to. That is, the drive circuit elements (1310) are arranged on the second substrate (1308). Here, the second substrate (1308) is a nonconductor.
According to one embodiment of the present invention, the second substrate (1308) of the driving circuit unit (102, 304) is the second substrate (1300) of the body unit (1300) as shown in FIGS. 13 (A) and 1320 (B). A predetermined distance from the two surfaces may be arranged. This is because the driving circuit element 1310 protrudes from the rear surface of the second substrate 1308 through a through hole. Specifically, since the body portion (1300) is a conductor, when the second substrate (1308) is in direct contact with the body portion (1300), the driving circuit elements (1310) are electrically connected to each other and short-circuited. Because there is.
Structurally, as shown in FIG. 13A, grooves are formed on both sides of the rear surface of the body portion (1300), and the second substrate (1308) is inserted into the grooves. it can.
The upper lid (1110) is connected to the body part (1300) and is made of a material that allows light output from the light emitting element to pass through.
The lower lid (1112) is coupled to the body part (1300) and is made of a metal material for heat dissipation. Here, the lower lid (1112) may have a structure with a wide cross-sectional area for heat dissipation, such as a concavo-convex structure.

FIG. 15 is a diagram illustrating a structure of a driving circuit unit according to an embodiment of the present invention.
Referring to FIG. 15, the driving circuit unit (102, 304) includes a second substrate (1500, corresponding to 1308 in FIG. 13),
It includes an element array region (1502), a heat dissipation substrate (1506), a transistor (TR), and a heat dissipation portion (1508).
In the material arrangement region (1502), elements other than the transistor (TR) among the elements of the drive circuit section (102, 304), that is, constant current diodes (D5 to D8) and resistors (R2 and R3) are arranged. .
The transistor (TR) and the heat radiating part (1508) are arranged on the heat radiating substrate (1506). Here, since the heat dissipation substrate (1506) is made of a conductor, heat released from the transistor (TR) is dissipated through the heat dissipation substrate (1506).
The heat released from the transistor (TR) is also dissipated by the heat radiating portion (1508).

According to an embodiment of the present invention, the material array region 1502 in which the above elements are arrayed is separated from the heat dissipation substrate 1506 by a predetermined distance as shown in FIG. It is possible to prevent the heat released from the element from affecting the elements in the element array region (1502).
In short, in the driving circuit portion (102, 304) of the lighting element of the present invention, the heat released from the transistor (TR) is dissipated through the heat dissipation substrate (1506) and the heat dissipation portion (1508). That is, the drive circuit unit (102, 304) is implemented such that the heat released from the drive circuit unit (102, 304) is dissipated from the drive circuit unit (102, 304) itself.

FIG. 16 is a cross-sectional view illustrating an internal structure of a main body of a lighting device according to a second embodiment of the present invention, and FIG. 17 is a view illustrating a structure of a light emitting module according to an embodiment of the present invention.
Referring to FIG. 16, the lighting element of the present embodiment includes a body part (1600), a heat transfer pad part (1602), a substrate (1604), a light emitting module (1608), and a driving circuit part (1610), which are heat radiating conductors. Including.
The substrate (1604) is made of a non-conductive material unlike the first embodiment made of a conductor, and can be made of, for example, FR4.

Each light emitting module (1608) may include only one light emitting element, but may also include a plurality of light emitting elements as shown in FIG. For example, three light emitting elements (1702a, 1702b, and 1702c) are arranged on the first mount surface (1700), and three light emitting elements (1710a, 1710b, and 1710c) are arranged on the second mount surface (1706). Can be done.
If the upper surface of a board | substrate (1604) is investigated in detail, as shown to FIG. 17 (A), a 1st pattern part will be formed between mount surfaces, respectively.
For example, a first pattern portion (1714) is formed between the mount surfaces (1700 and 1706).
The first pattern portion (1714) is a conductor, and one or more holes (1716) are formed therein.

The hole (1716) passes through the substrate (1604) and is connected to the rear surface of the substrate (1604), and the rear surface of the substrate (1604) is a second conductor as shown in FIG. A pattern portion is formed. For example, the first pattern portion (1714) positioned between the first mount surface (1700) and the second mount surface (1706) and the second pattern portion (1720) connected through the hole (1716) are formed on the substrate (1604). ) Formed on the rear surface.
The inner surface of the hole (1716) is plated with a conductive material. As a result, the heat released from the light emitting device is a first pattern portion, a corresponding hole, a corresponding second pattern portion, a heat transfer pad portion (1602), and a body portion ( 1600). However, the heat transfer pad part 1602 must be formed from an insulator so that the second pattern part formed on the rear surface is not electrically connected.

FIG. 18 is a view illustrating an outer shape of a lighting device according to a second embodiment of the present invention, and FIG. 19 is a diagram illustrating an internal structure of the lighting device of FIG. 18 according to an embodiment of the present invention.

Referring to FIG. 18, the lighting device of the present embodiment is implemented by a main body (1800) and sockets (1802a and 1802b).
The main body (1800) is made of a material that can transmit light output from the light emitting element.
The sockets 1802a and 1802b are coupled to both ends of the main body 1800 and may be integrated with the main body 1800 or may be separated from the main body 1800. It is.
For example, a hole (1906) is formed in a part of the basic member (1800), preferably a terminal portion as shown in FIG. 19A, and the body portion (1906) has a hook structure in the socket (1802). 1810) can be inserted into the hole (1906) to connect the socket (1802) to the body (1800). Here, the hole (1906) can be formed on the guide member (1902) for alignment, for example. Of course, the method of coupling and separating the main body (1800) and the socket (1802) is not limited to the above-described method, and can be variously modified.

18 and 19, the internal structure of the main body (1800) will be described in detail. A guide member (1902) is formed on the inner surface of the basic member (1900), and the guide groove (1904) is formed by the guide member (1902). ) Is formed.
Here, the guide member (1902) and the guide groove (1904) are formed in the longitudinal direction of the main body (1800).
Subsequently, the main body substrate (1920) is inserted into the guide groove (1904). Here, the main body substrate (1920) includes a body portion (1930) and a protruding portion (1932), and may include an insulator or a conductor.
A light emitting unit may be arranged on one surface of the main substrate (1920), and a converter may be arranged on the other surface.

According to another embodiment of the present invention, the light emitting unit is arranged on a main substrate (1920), but the converter may be arranged on a separate substrate different from the main substrate (1920).

Hereinafter, a specific arrangement relationship of the illumination elements will be described in detail with reference to the accompanying drawings.
FIG. 20 is a cross-sectional view showing the arrangement relationship of the components of the illumination element according to the second embodiment of the present invention.
Referring to FIG. 20A, the basic member (1900) has, for example, a cylindrical shape, and a main body substrate (1920) is arranged in the longitudinal direction of the main body (1900) inside the basic member (1900).
The light emitting modules (2002) are arranged in the longitudinal direction of the basic member (1900) on one surface, for example, the upper surface, of the main body substrate (1920). Here, each light emitting module (2002) includes at least one light emitting element.
A converter (CN) is arranged on the lower surface of the main body substrate (1920), and the substrate included in the converter may be separated from the main body substrate (1920) and arranged. Specifically, the first rectifier circuit portion (910), the second rectifier circuit portion (912), and the drive circuit portion (916) included in the converter are separated from each other as shown in FIG. That is, they are arranged on the first rectifier circuit board (2020), the second rectifier circuit board (2022), and the drive circuit board (2024), respectively.

According to an embodiment of the present invention, the first rectifier circuit board (2020), the drive circuit board (2024), and the second rectifier circuit board (2022) are sequentially inserted into the grooves formed in the guide member (2010). Can be done.
As a result, the first rectifier circuit board (2020), the drive circuit board (2024), and the second rectifier circuit board (2022) are arranged on the same plane in a state of being separated from the body substrate (1920) by a predetermined distance. .
When the lighting element is configured as shown in FIG. 20, light emitted from the light emitting module (2002) is output through the front member (1900a) of the main body (1900). Accordingly, the front member (1900a) of the main body (1900) may be made of the above-described material that can transmit light, for example, a diffusion tube, and may include a diffusion layer.

According to an embodiment of the present invention, the front member (1900a) and the rear member (1900b) of the main body (1900) are integrally manufactured in the same process, and the thickness of the front member (1900a) is considered in consideration of light transmission. Can be implemented to be thinner than the thickness of the rear member 1900b.

According to another embodiment of the present invention, the front member (1900a) and the rear member (1900b) of the main body (1900) can be given a specific hue. However, the hue of the front member (1900a) can be made thinner than the hue of the rear member (1900b) in consideration of the light transmittance.
Referring to FIG. 20A again, the light emitting modules (2002) can be arranged in the longitudinal direction of the main body (1900) on the light emitting substrate (2000). Here, the surface of the light emitting substrate (2000) on which the light emitting module (2002) is located is insulatively plated.

According to an embodiment of the present invention, the main body substrate 1920 may be made of an insulator such as polyvinyl chloride (PVC). In this case, the light emitting substrate (2000) and the main body substrate (1920) are in direct contact (although not shown), or without the light emitting substrate (2000), the light emitting module (2002) is connected to the main body substrate (1920). ) Directly on the front surface. In this case, the light emitting module (2002) can be bonded to the main body substrate (1920) or can be screwed.

According to another embodiment of the present invention, the main substrate (1920) may be made of a conductor such as aluminum (Al), and the light emitting substrate (2000) may be made of a conductor. In this case, a heat transfer pad portion (2004) for transferring heat of the light emitting substrate (2000) to the main substrate (1920) may be arranged between the main substrate (1920) and the light emitting substrate (2000).
In such a structure, the light emitting modules (2002) are sequentially arranged on the light emitting substrate (2000) in the longitudinal direction of the main body (1800), and each light emitting module (2002) includes at least one light emitting element.

The heat transfer pad part (2004) may be arranged between the light emitting substrate (2000) and the main body substrate (1920) and may be formed of a thermal resistor having a low thermal resistance. In general, since a large amount of heat is generated from the light emitting element, the generated heat must be released to the outside. Therefore, in the illumination element of this embodiment, the light emitting substrate (2000) and the main body substrate (1920) are formed on the heat dissipating conductor, and heat generated from the light emitting element is externally transmitted through the light emitting substrate (2000) and the main body substrate (1920). To release.

In addition, since the back surface of the light emitting substrate (2000) may not be completely flat, the lighting element of the present embodiment has a flatness by arranging the heat transfer pad portion (2004) on the back surface of the light emitting substrate (2000). Improve.
In this case, since the heat transfer efficiency may be lowered by the heat transfer pad portion (2004), the heat transfer pad portion (2004) is formed of a material having a low thermal resistance to maintain the heat transfer efficiency. Here, the material of the heat transfer pad portion (2004) may be a non-insulator or an insulator.

FIG. 21 is a view illustrating a structure of a driving circuit unit according to another embodiment of the present invention.
Referring to FIG. 21, the driving circuit unit includes a driving circuit substrate (2024), an element array region (2100), a heat dissipation substrate (2102), a transistor (TR), and a heat dissipation unit (2104).
In the material arrangement region (2100), elements excluding the transistor (TR) among elements of the drive circuit section, that is, constant current diodes and resistors are arranged.
The transistor (TR) and the heat dissipation part (2104) are arranged on the heat dissipation substrate (2102). Here, since the heat dissipation substrate (2102) is made of a conductor, heat released from the transistor (TR) is dissipated through the heat dissipation substrate (2102). The heat released from the transistor (TR) is also dissipated by the heat radiating part (2104).

According to an embodiment of the present invention, the material arrangement region (2100) in which the above elements are arranged is separated from the heat dissipation substrate (2102) by a predetermined distance, so that the heat released from the transistor (TR) is consequently obtained. The elements in the array region (2100) can be prevented from being affected.
In short, in the driving circuit portion of the lighting element of the present invention, the heat released from the transistor (TR) is dissipated through the heat dissipation substrate (2102) and the heat dissipation portion (2104). That is, the drive circuit unit is implemented such that heat released from the drive circuit unit is dissipated within itself.

FIG. 22 is a cross-sectional view showing an internal structure of a main body of an illumination element according to another embodiment of the present invention.
Referring to FIG. 22, the lighting element of the present embodiment includes a main body substrate (2200), a heat transfer pad portion (2202), a light emitting substrate (2204), a light emitting module (2206), and a converter (CN).
The light emitting substrate (2204) is made of a non-conductive material, for example, FR4.
Each light emitting module (2206) may include only one light emitting element or may include a plurality of light emitting elements.

The above-described embodiments of the present invention have been disclosed for the purpose of illustration, and those skilled in the art having ordinary knowledge of the present invention may make various modifications, changes, and modifications within the spirit and scope of the present invention. Additions are possible, and such modifications, changes and additions should be considered as belonging to the following claims.

Claims (46)

A light emitting unit having at least one light emitting element and a drive circuit unit that changes the input first current to a constant current;
The second current output from the drive circuit unit is provided to the light emitting unit, and the second current is larger than the first current. The drive circuit section is
2. A drive circuit operation control unit connected to the constant current unit for changing the first current to the constant current and the constant current unit, and amplifying the first current to the second current. The illumination element as described in. The constant current unit includes at least one constant current diode,
The drive circuit operation controller is
The lighting device according to claim 2, further comprising: a transistor connected to the constant current diode; and a plurality of resistors connected to the transistor and used for the amplification. The constant current diode is connected to the base and collector of the transistor, one of the resistors is connected to the emitter of the transistor, and the other resistor is connected to the base of the transistor and the constant current diode. The illumination element according to claim 3. The constant current part is
From a first sub-constant current unit composed of a plurality of first constant current diodes connected in series and a plurality of second constant current diodes connected in parallel with the first constant current diode and connected in series. The illumination element according to claim 2, further comprising a configured second sub-constant current unit. The second current may be implemented in a pulse form with a period twice that of an AC input power source, and a time difference between the pulses may be smaller than a minimum time during which a person can recognize the flickering of the light emitting element. The lighting element according to claim 1. The lighting element further includes a rectifier circuit unit connected to the drive circuit unit,
The lighting device according to claim 1, wherein the rectifier circuit unit includes a plurality of diodes constituting at least one fuse and a bridge circuit. The light emitting unit includes LED modules arranged in series with each other, the drive circuit unit and the light emitting unit are included in a main body of the lighting element, and the rectifier circuit unit is a socket connected to the main body. Included,
The lighting device according to claim 7, wherein the main body and the socket are separable. The main body is a heat-radiating conductor, a body portion, a conductor substrate arranged on the first surface of the body portion, and the LED module arranged on one surface of the substrate, and the heat transfer arranged between the body portion and the substrate. Including the drive circuit portion arranged on the second surface opposite to the first surface in the pad portion and the body portion;
9. The illumination according to claim 8, wherein each LED module includes a plurality of LEDs arranged in parallel, and the drive circuit unit is separated from the second surface of the body unit by a predetermined distance. element. The main body includes a body part which is a heat-dissipating conductor, a non-conductive board arranged on the first surface of the body part, the LED module arranged on the board, and a conductor arranged between adjacent LED modules on the board. The second pattern portion, which is a conductor arranged on a surface opposite to the surface on which the first pattern portion is arranged in the substrate, is arranged between the body portion and the substrate and is an insulator. Including the heat transfer pad portion and the drive circuit portion arranged on the second surface opposite to the first surface in the body portion;
Each LED module has a plurality of LEDs arranged in parallel, the drive circuit unit is arranged separately from the second surface of the body unit, and at least one of the first pattern units includes: The lighting device of claim 8, wherein the lighting device is electrically connected to the second pattern unit through one or more holes. The light emitting unit is arranged on a first surface of the body unit, and the drive circuit unit is arranged on a second surface opposite to the first surface in the body unit,
The driving circuit unit includes a driving circuit board, a constant current unit arranged on the driving circuit board, a heat dissipation board formed on the driving circuit board, the transistor arranged on the heat dissipation board, and the transistor on the heat dissipation board. The lighting device according to claim 7, wherein the constant current unit and the transistor are arranged spaced apart from each other. An illumination element comprising: a light emitting unit having at least one light emitting element; and a drive circuit unit for driving the light emitting element using at least one constant current diode. The drive circuit section is
The lighting device according to claim 12, further comprising: a transistor connected to the constant current diode; and a transistor connected to the transistor and used for amplification. The lighting element is
A rectifier circuit unit connected to the drive circuit unit;
The rectifier circuit section is
The lighting element according to claim 13, comprising at least one fuse; and a plurality of diodes forming a bridge circuit. A body portion that is a heat dissipation conductor, a substrate that is arranged on a first surface of the body portion, and at least one light emitting module that is arranged on the substrate, and a heat transfer pad portion that is arranged between the body portion and the substrate. The lighting element characterized by the above-mentioned. The lighting element is
16. The illumination according to claim 15, further comprising the drive circuit unit arranged on a second surface opposite to the first surface in the body unit, wherein the light emitting module includes at least one light emitting element. element. 17. The substrate according to claim 16, wherein the substrate is a conductor, the light emitting module is arranged on an insulated portion of the substrate, and the driving circuit unit includes at least one constant current diode. The lighting element as described. The drive circuit unit includes a drive circuit board,
The constant current diode arranged on the drive circuit board The heat dissipation board formed on the drive circuit board The transistor arranged on the heat dissipation board and connected to the constant current diode, and the transistor on the heat dissipation board The lighting device according to claim 17, further comprising a connected heat dissipating unit, wherein the constant current diode and the transistor are arranged apart from each other. The lighting device according to claim 16, wherein the driving circuit unit is arranged at a predetermined distance from the second surface of the body unit. The substrate is a non-conductor, the light emitting module is included in a light emitting part, the heat transfer pad part is an insulator,
The light emitting part
A first pattern portion which is a conductor arranged between adjacent light emitting modules on the substrate; and a second pattern which is a conductor arranged on a surface opposite to the surface where the first pattern portion is arranged on the substrate. Further comprising
The lighting device of claim 16, wherein at least one of the first pattern parts is electrically connected to the second pattern part through one or more holes. The body part, the substrate, the light emitting module, the heat transfer pad part and the drive circuit part are included in the main body,
The lighting element further includes a socket coupled to the main body,
The lighting device according to claim 16, wherein the socket is separable from the main body, and the socket includes a rectifier circuit unit that rectifies an input power source. In the lighting element,
A body part which is a heat-dissipating conductor; a substrate arranged on the first surface of the body part; and at least one light emitting module arranged on the substrate; and a body part arranged on a second surface opposite to the first surface. Including the above drive circuit unit having a constant current unit for changing the input current to a constant current,
The resistance of the constant current unit is set to be different depending on a voltage input to the lighting element and a voltage applied to the light emitting module. The constant current part includes at least one constant current diode, and the lighting element further includes a heat transfer pad part arranged between the body part and the substrate,
The lighting device according to claim 22, wherein the light emitting module includes at least one light emitting device. The lighting device according to claim 23, wherein the substrate is a conductor, and the light emitting module is arranged on an insulated portion of the substrate. The drive circuit section is
Drive circuit board at least one constant current diode arranged on the drive circuit board;
A heat dissipation board formed on the drive circuit board, including a transistor arranged on the heat dissipation board and connected to the constant current diode, and a heat dissipation part connected to the transistor on the heat dissipation board;
The lighting device of claim 22, wherein the constant current diode and the transistor are arranged apart from each other. The lighting device according to claim 22, wherein the driving circuit unit is arranged to be separated from the second surface of the body unit by a predetermined distance. The substrate is a non-conductor, the light emitting module is included in a light emitting part, the heat transfer pad part is an insulator,
The light emitting part
A first pattern portion which is a conductor arranged between adjacent light emitting modules on the substrate, and a second pattern portion which is a conductor arranged on a surface opposite to the surface on which the first pattern portion is arranged on the substrate. 24. The lighting device of claim 23, wherein at least one of the first pattern parts is electrically connected to the corresponding second pattern part through one or more holes. The body part, the substrate, the light emitting module and the drive circuit part are included in the main body,
The lighting element further includes a socket coupled to the main body,
23. The lighting device according to claim 22, wherein the socket is separable from the main body, and a rectification circuit unit that rectifies an input power source is arranged in the socket. In a socket used for a lighting element having a main body,
The socket used for a lighting element, wherein the socket is separable from the main body, and the socket includes a rectification circuit unit that rectifies an input power source. 30. The socket used in the lighting element according to claim 29, wherein the rectifier circuit unit includes a rectifier substrate, a fuse, and a plurality of diodes arranged on the rectifier substrate and connected to the fuse. The body is a heat sink conductor body part,
A light emitting substrate arranged on the first surface of the body part;
At least one light emitting module arranged on the light emitting substrate;
A heat transfer pad portion arranged between the body portion and the light emitting substrate; and a drive circuit portion arranged on a second surface opposite to the first surface in the body portion, wherein the light emitting module comprises at least one 30. The socket used for the lighting element according to claim 29, wherein the socket includes two LEDs, and the driving circuit unit includes at least one constant current diode. A first rectifier circuit unit for converting an AC power source into a DC power source; and at least one light emitting element that is electrically connected to the first rectifier circuit unit and emits light in response to provision of a current output from the first rectifier circuit unit. And a driving circuit unit that is electrically connected to the light emitting unit and controls the current flowing through the light emitting unit to be a constant current, and the current output from the first rectifier circuit unit is the light emitting unit. Part and the drive circuit part sequentially flow through the lighting element. The drive circuit section is
A constant current unit that controls the current flowing through the light emitting unit to be a constant current and a drive circuit operation control unit that controls the operation of the drive circuit unit;
The lighting device according to claim 32, wherein the first rectifier circuit unit includes a bridge circuit, and the operation control unit includes a transistor connected to the constant current unit. The constant current unit includes at least one constant current diode,
34. The illumination element according to claim 33, wherein a cathode terminal of the constant current diode is connected to a base of the transistor. The constant current part is
From a first sub-constant current unit composed of a plurality of first constant current diodes connected in series and a plurality of second constant current diodes connected in parallel with the first constant current diode and connected in series. The illumination element according to claim 33, further comprising a configured second sub-constant current unit. The constant current is embodied in a pulse form with a period that is twice the frequency of the AC power supply, and a time difference between the pulses is smaller than a minimum time during which a person can recognize the flickering of the light emitting element. The lighting element according to claim 32. The lighting element is
A second rectifier circuit unit electrically connected to the drive circuit unit;
One terminal of the AC power supply unit is connected to the first rectification circuit unit, and the other terminal of the AC power supply unit is connected to the second rectification circuit unit, and the first rectification circuit unit and the second rectification circuit are connected. The lighting device according to claim 32, wherein the unit constitutes a bridge circuit. The lighting element according to claim 32, wherein the light emitting unit is included in a main body of the lighting element, and the first rectifying circuit unit and the driving circuit unit are separately provided outside the main body. . The lighting element further includes a main body formed integrally and sockets connected to both ends of the main body,
The lighting device according to claim 32, wherein the first rectifier circuit unit, the light emitting unit, and the drive circuit unit are included in the main body, and the socket is separable from the main body. Each of the sockets includes a protrusion formed by a hook method, and a hole is formed on the outer peripheral surface of the main body.
The lighting device according to claim 39, wherein the socket is coupled to the main body by inserting the protruding portion into the hole. The lighting element further includes a main body substrate, and a first groove and a second groove are formed on an inner surface of the basic member in the main body,
The main body substrate is inserted into the first groove and arranged in the longitudinal direction of the main body, and a plurality of light emitting modules having at least one LED are arranged on one surface of the main body substrate, and the driving is performed thereon. The drive circuit board on which the circuit part is arranged is inserted into the second groove, and the rectifier circuit board on which the first rectifier circuit part is arranged is inserted into the second groove. 39. A lighting element according to 39. In the basic member, the hue of the first portion facing the light emitting unit is thinner than the hue of the second portion facing the driving circuit board in the basic member, and the thickness of the first portion is larger than the thickness of the second portion. 42. The illumination device of claim 41, wherein the illumination device is thin and the first portion has a diffusion function. The lighting device according to claim 41, wherein the main body substrate is made of polyvinyl chloride (PVC), and the light emitting module is screwed to the main body substrate. The main body substrate is made of aluminum (Al), the light emitting module is arranged on the light emitting substrate, and a heat transfer pad portion is arranged between the main body substrate and the light emitting substrate. 42. A lighting element according to 41. The front surface of the light emitting substrate is coated with a nonconductive material, and the light emitting module is positioned on a portion coated with the nonconductive material,
The light emitting part
A first pattern portion which is a conductor arranged between adjacent light emitting modules on the light emitting substrate, and a second conductor which is arranged on a surface opposite to the surface where the first pattern portion is arranged on the light emitting substrate. 45. The lighting device of claim 44, further comprising a pattern unit, wherein at least one of the first pattern units is electrically connected to the corresponding second pattern unit through one or more holes. The drive circuit section is
The drive circuit board,
A constant current section arranged on the drive circuit board;
A heat dissipation board formed on the drive circuit board,
Including a transistor arranged on the heat dissipation substrate and a heat dissipation part connected to the transistor on the heat dissipation substrate;
42. The illumination element according to claim 41, wherein the constant current part and the transistor are arranged apart from each other.

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