JP3147606U - LED lamp - Google Patents

Abstract

Provided is an LED lamp in which a cover is made of a resin, reduces the weight of the entire lamp body, is easier to manufacture and use, can be reduced in cost, and can be more widely used.
An LED lamp 60 has a plug 11 at the top and a resin cover 10 having a bottom at the opening 12 and is provided inside the resin cover 10, has an LED 30 at the center, and the light source of the LED 30 is open. A mounting base 20 that irradiates toward the portion 12, a transparent lid 40 provided in the opening 12 of the resin cover 10, and one end thereof provided between the mounting base 20 inside the resin cover 10 and the electrode. Is connected to the electrode, and after the direct current to be input is subjected to control processing, it is passed through the LED 30 to cause the LED 30 to emit light in a low voltage and low current state, and the resin cover 10 does not overheat. Prepare.
[Selection] Figure 2A

Description

  The present invention relates to a structure of an LED lamp, and more particularly to a structure of an LED lamp body and an LED lamp made of a resin material that does not generate a high temperature.

  As the standard of living improves, various lamps are used in accordance with the atmosphere in the room, and the aesthetics and practicality are also increasing, and lamps having a warm color temperature are often used.

  As shown in FIG. 1, a conventional lamp 90 has a lamp body 91 having a plug 92 at the top end, a halogen lamp 94 inside the lamp body 91, and two electrodes (not shown) of the halogen lamp 94 are The plug 92 is extended, connected to a socket (not shown), and energized.

  However, when the halogen lamp 94 is lit, it generates very high heat, consumes a great deal of power, and has a short service life. Therefore, an LED lamp has been researched and replaced to replace the halogen lamp 94.

  The input efficiency of a high efficiency LED is only 15-20%, and 80-85% of the rest is heat. If such heat is not effectively treated, unless it is discharged to the outside in a timely manner, there is a problem that the surface temperature of the LED body becomes high, which affects the emission wavelength, the luminous efficiency is attenuated, and the life is shortened. Therefore, coping with the heat generation problem when using high-efficiency LEDs is the key to superiority or inferiority in product performance. Therefore, conventionally, when dealing with heat generation problems, the LED package is generally designed to conduct heat, and the lamp body is also designed to have a heat dissipation effect, which increases the overall cost of the product. Furthermore, the volume and weight of the LED package main body have increased, which has been a problem. Therefore, at present, the distribution amount of lamps made of resin material using high-efficiency LEDs is very small.

  Therefore, at present, LEDs are rarely used in lighting devices, because the heat dissipation effect of the LED package is limited, and the LEDs inevitably become hot under the need to stabilize the voltage and current. The issue is whether to dissipate heat. Further, when a heat radiating device such as a heat radiating fin is provided on the lamp main body, the volume of the lamp main body increases, which is not only disadvantageous when mounted indoors but also does not lower the lamp surface temperature. For example, a lamp using an LED as a light source has a high temperature on the surface of the main body cover, and the surrounding area also becomes high in temperature. Furthermore, in order to avoid the risk of burning, there is a problem that metal materials must be used and improvement is necessary.

The first object of the present invention is an LED lamp whose cover is made of resin, reduces the overall weight of the lamp body, is easier to manufacture and use, can be reduced in cost, and can be more widely used. Is to provide.
The second object of the present invention is to provide an LED lamp which does not emit a high temperature, has safety and energy saving, and has a long service life.

  In order to achieve the above-described object, the LED lamp according to claim 1 is provided with a resin cover having a plug at the top and an opening at the bottom, a resin cover inside the resin cover, and a light emitter (LED at the center). ), A mounting base that the light source of the light emitter emits toward the opening, a transparent lid provided in the opening of the resin cover, and a mounting base inside the resin cover and the electrode One end of the LED drive circuit is connected to the electrode, and the input direct current is flown through the LED after the control process, causing the LED to emit light under conditions of low voltage and low current, and the resin cover does not overheat Is provided.

Hereinafter, the structure of an LED lamp according to an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIGS. 2A to 6, the LED lamp structure according to the first embodiment of the present invention includes a resin cover 10, a mounting base 20, a transparent lid 40, and an LED driving circuit 50.

  As the resin cover 10, a known MR16 type cover is used. The resin cover 10 has a convex plug 11 on the top, and the plug 11 has two plug pins 11 a on the top surface. An opening 12 is provided at the bottom.

  The mounting base 20 is provided inside the resin cover 10 and is resin injection-molded. The mounting base 20 has a hemispherical surface 21 that opens downward at the center, and a mounting hole 22 at the top end of the hemispherical surface 21. The mounting hole 22 is molded in accordance with the shape of the LED, and when it is desired to mount the rectangular LED 30A, the rectangular hole 22A is molded as shown in FIGS. When it is desired to mount the circular LED 30B, the circular hole 22B is formed as shown in FIGS. The LED 30 is fixed to the fixing portion 24 at the top of the hemispherical surface 21. The peripheral edge of the bottom of the mounting base 20 has a ring-shaped groove 23. The opening 12 of the resin cover 10 is fitted into the ring-shaped groove 23. The light source of the LED 30 irradiates toward the opening 12 of the resin cover 10.

  The transparent lid 40 is attached to the opening 12 of the resin cover 10, and in this embodiment, covers the inner peripheral wall of the ring-shaped groove 23 of the mounting base 20 as shown in FIGS. 5 and 6. In the present embodiment, the transparent lid 40 has not only a protective function but also an optically transparent function.

  The LED drive circuit 50 is mounted between the mounting base 20 inside the resin cover 10 and the plug 11, and one end of the LED drive circuit 50 is connected to the LED 30 by the electric wire 52, and is input after the direct current is controlled. Used. Depending on the load characteristics of the LED 30, the LED 30 is caused to emit light under low voltage and low current conditions, and the resin cover 10 does not overheat.

  As shown in FIG. 12, the LED lamp according to the present embodiment includes a DC power supply 110, a pulse oscillator (Pulse OSC) 111, a preamplifier 112, a carrier signal control unit 120, a voltage / current control unit 130, and a feedback signal circuit 150.

  The DC power source 110 provides a necessary power source for the LED load end 140.

  A pulse oscillator (PulseOSC) 111 generates a pulse signal voltage V <b> 1 by a current input from the DC power supply 110.

  The preamplifier 112 is connected to the output terminal of the pulse oscillator 111, amplifies the pulse signal voltage V1, and generates an amplified signal voltage V2.

  The carrier signal control unit 120 includes a calculus processor 121, a signal comparison circuit 122 connected to the calculus processor 121, and at least three signal processors 123, 124, and 125 connected to the signal comparison circuit 122. The signal processors 123, 124, and 125 are separately connected to the signal difference amplifiers 126, 127, and 128, perform comparison and processing of the signal voltage with respect to the amplified signal voltage V2 at least three times, and output the comparison signal voltage V3. .

  The voltage / current control unit 130 includes a signal converter 131, which distributes the comparison signal voltage (V 3) into a signal voltage and a signal current, and the distributed signal voltage is processed by the constant voltage circuit 133 through the DC voltage processor 132. The distributed signal current is processed by the DC current processor 134 and the constant current circuit 135 to become a constant current (I4), and the processed constant voltage (V4) and constant current (I4) are An operating voltage signal (V4n) passes through the power amplifier 136 and is sent to the LED load end 140. Since the amplified operating voltage signal (V4n) output from the power amplifier 136 causes the LED load end 140 to emit light at a low voltage and a low current, heat generation at the LED load end 140 can be suppressed.

  The feedback signal circuit 150 is provided between the LED load terminal 140 and the calculus processor 121, and the load signal voltage (V5) input from the LED load terminal 140 is returned by the feedback signal circuit 150, and the comparison signal voltage (V6). The signal voltage processed and input to the calculus processor 121 is further processed at least three times by the signal processor 123, the signal processor 124, and the signal processor 125, and attenuated as a result of the processing. Further, the signal voltage is automatically corrected and amplified by the signal difference amplifier 126, the signal difference amplifier 127, and the signal difference amplifier 128. The signal difference amplifier 126, the signal difference amplifier 127, and the signal difference amplifier 128 are connected to the DC voltage processor 132 and the DC current processor 134 in the voltage / current control unit 130.

  The LED drive circuit 50 according to the present embodiment is provided at the LED load end 140.

  The corrected amplified signal voltage current emits the LED at a current as low as 0.16 (DCA) to 0.18 (DCA), so the LED temperature is between 40 ° C. to 50 ° C. and 52 ° C. to 53 ° C. It is held and does not become hot. The luminance of the LED is 350 (Lux) to 400 (Lux), and the power consumption is about 2 (W).

  Under the above structure, in this embodiment, the high-brightness and high-efficiency LED can emit light in a low voltage and low current state, which not only has an energy saving effect but also can overcome a heat dissipation problem. Therefore, the LED lamp main body 60 composed of the resin cover 10 does not need to have a heat radiating device outside, and the volume does not increase. Therefore, the LED lamp body 60 can be used in combination with an existing lamp socket, the lamp body can be easily replaced, and is excellent in convenience and practicality.

(Second Embodiment)
As shown in FIGS. 7 and 8, in the second embodiment, the LED lamp body 60 is combined with a cylindrical cover 70, and the cylindrical cover 70 is configured to wrap around the LED lamp body 60, and the opening is on the bottom. Presents a hollow shape that faces. A screw thread 71 and an electrode 72 are provided at the top end, and an electric wire 74 is provided inside the screw thread 71 and the electrode 72. The electric wire 74 connects the electrode 72 and the socket 73, and the plug pin 11 a is inserted and connected to the socket 73. The ring-shaped groove 23 of the mounting base 20 is located in the opening of the cylindrical cover 70 and constitutes the LED lamp 80A. As an advantage of this type of structure, the LED lamp main body 60 can be used alone, or it can be quickly combined with the cylindrical cover 70 to form a general lamp, which can be used by being inserted into a general lamp socket. It can be used as a light for indoor use, and since the LED has a long life, it does not require frequent replacement like a conventional lamp.

(Third embodiment)
As shown in FIG. 9, in the third embodiment, the resin cover has the shape of a cylindrical cover 70, the top end is provided with a thread 71, the mounting base 20 has a disk shape, and the mounting base 20 A printed circuit board 30C having a plurality of LEDs 30 is provided on the bottom surface. The transparent lid 40 is joined to the opening of the cylindrical cover 70 with a thread 41. The LED lamp 80B is configured with the above structure. The external structure of the LED lamp 80B is similar to the LED lamp 80A shown in FIG. 8, but the LED lamp main body 60 is directly inside the cylindrical cover 70, and the upper end of the LED light emission circuit 50 is an electric wire 51. 72 is connected to the printed circuit board 30 </ b> C by an electric wire 52.

(Fourth embodiment)
As shown in FIG. 10, the fourth embodiment is similar to the above two embodiments, except that the height of the cylindrical cover 70 is relatively short, while the cylinder shown in FIG. The height of the shaped cover 70 is relatively long, and the cylindrical cover 70 is within the scope of the present invention, both long and short.

(Fifth embodiment)
As shown in FIG. 11, in the fifth embodiment, the thread 41 of the transparent lid 40 is located at the opening of the cylindrical cover 70, and as shown by the dotted line in the figure, the height of the transparent lid 40 is high. Therefore, the focal point (F) of the LED can be adjusted, and an optimal lighting effect can be obtained.

  In each of the embodiments of the present invention, a resin material is used for the lamp body, and an LED light emitting circuit is combined with the resin material. Therefore, compared to a lamp using a known halogen lamp or a lamp using a metal cover for the lamp body, it realizes energy saving, environmental protection, and high safety, and can also reduce the manufacturing cost. It is easy to spread to the general public.

It is a perspective view which shows the conventional lamp | ramp. 1 is an exploded perspective view showing an LED lamp according to a first embodiment of the present invention. It is a perspective view which shows the LED lamp by 1st Embodiment of this invention combining FIG. 2A. 1 is a perspective view showing a mounting base when a square LED is mounted in the LED lamp according to the first embodiment of the present invention. 1 is a perspective view showing a mounting base when a circular LED is mounted in the LED lamp according to the first embodiment of the present invention. It is sectional drawing which shows the LED lamp main body at the time of mounting | wearing with square LED by the LED lamp by 1st Embodiment of this invention. 1 is a cross-sectional view illustrating an LED lamp body when a circular LED is mounted on the LED lamp according to the first embodiment of the present invention. It is a perspective view which shows the LED lamp by 2nd Embodiment of this invention. It is sectional drawing which shows the LED lamp of FIG. It is sectional drawing which shows the LED lamp by 3rd Embodiment of this invention. It is sectional drawing which shows the LED lamp by 4th Embodiment of this invention. It is sectional drawing which shows the LED lamp by 5th Embodiment of this invention. 1 is a circuit diagram illustrating an LED driving circuit of an LED lamp according to a first embodiment of the present invention.

Explanation of symbols

  10: resin cover, 11: plug, 11a: plug pin, 12: opening, 20: mounting base, 21: hemispherical surface, 22: mounting hole, 22A: square hole, 22B: circular hole, 23: ring-shaped Groove, 24: fixed part, 30: LED, 30A: square LED, 30B: circular LED, 30C: printed circuit board, 40: transparent lid, 41: screw thread, 50: LED drive circuit, 51: electric wire, 52: electric wire , 60: LED lamp body, 70: cylindrical cover, 71: thread, 72: electrode, 73: socket, 74: electric wire, 80A: LED lamp, 80B: LED lamp, 80C: LED lamp, 80D: LED lamp, 90: Lamp, 91: Lamp body, 92: Plug, 93: Plug pin, 94: Halogen lamp, 110: DC power supply, 111 pulse oscillator, 112: Preamplifier, 12 : Carrier signal control unit, 121: calculus processor, 122: signal comparison circuit, 123: signal processor, 124: signal processor, 125: signal processor, 126: signal difference amplifier, 127: signal difference amplifier, 128: Signal difference amplifier, 130: voltage current control unit, 131: signal converter, 132: DC voltage processor, 133: constant voltage circuit, 134: DC current processor, 135: constant current circuit, 136 power amplifier, 140: LED Load end, 150: feedback signal circuit, F: focus, I4: constant current, V1: pulse signal voltage, V2: amplified signal voltage, V3: comparison signal voltage, V4: constant voltage, V4n: operating voltage signal, V5: load Signal voltage, V6: Comparison signal voltage

Claims (9)

A resin cover having a plug at the top and an opening at the bottom;
A mounting base provided inside the resin cover, having an LED in the center, and a light source of the LED irradiating toward the opening;
A transparent lid provided in the opening of the resin cover;
Provided between the mounting base inside the resin cover and the electrode, one end of which is connected to the electrode, and the direct current to be input is flown through the LED after being subjected to a control process, and is in a low voltage, low current state LED driving circuit that causes the LED to emit light under the condition that the resin cover does not overheat,
An LED lamp comprising: The LED drive circuit is
A DC power supply that provides the necessary power to the LED load end;
A pulse oscillator that generates a pulse signal voltage (V1) by a current input from the DC power supply;
A preamplifier connected to the output terminal of the pulse oscillator and amplifying the pulse signal voltage (V1) to generate an amplified signal voltage (V2);
A carrier signal control unit having a calculus processor, a signal comparison circuit connected to the calculus processor, and at least three signal processors connected to the signal comparison circuit;
A voltage converter including a signal converter, a DC voltage processor and a constant voltage circuit, a DC current processor and a constant current circuit, and a power amplifier;
A feedback signal circuit connected between the LED load end and the calculus processor,
The signal processor is separately connected to a signal difference amplifier, performs comparison and processing of the signal voltage on the amplified signal voltage (V2) at least three times, and outputs a comparison signal voltage (V3),
The voltage / current control unit modulates the comparison signal voltage (V3) by the signal converter, and then processes it by the DC voltage processor and the constant voltage circuit, and the DC current processor and the constant current circuit. And then amplifying the constant voltage (V4) and constant current (I4), which were compared and processed by the power amplifier, and output to the LED load terminal,
The feedback signal circuit obtains a load signal voltage (V5) via the LED load terminal, subsequently obtains a comparison signal voltage (V6) by feedback, and sends it to the input terminal of the calculus processor for processing. Subsequently, the signal processor performs adjustment and control operations of a software program at least three times, and the signal difference amplifier automatically adjusts, corrects and amplifies the attenuated signal voltage and at the same time the DC voltage processor. And separately connected to the DC current processor, the warp amplifier then outputs a new operating voltage signal (V4n) and drives the LED load terminal again, so that the LED load terminal is a modified operating voltage signal. It is possible to operate at low voltage and low current by adjusting and controlling, and to suppress the heat radiation temperature. LED lamp according to claim 1 that.   The MR 16 type cover is used for the resin cover, the top of the resin cover has a convex plug, and the top surface of the plug has two plug pins. LED lamp.   The mounting base is made of resin and has a hemispherical surface that opens downward in the center, and has a mounting hole at the top end of the hemispherical surface, and the mounting hole is in the shape of an LED. The base of the mounting base has a ring-shaped groove, and the opening of the resin cover is fitted into the ring-shaped groove. 3. The LED lamp according to 3.   The LED lamp according to claim 4, wherein the transparent lid is provided on an inner peripheral wall of the ring-shaped groove of the mounting base.   The resin cover is combined with a cylindrical cover, and the cylindrical cover has a hollow shape with an opening facing downward, and has a thread and an electrode at the top end of the cylindrical cover, Has a socket to be joined to the plug, two plug pins at the top end of the resin cover are inserted and connected to the socket, and the ring-shaped groove of the mounting base is located at the opening of the cylindrical cover. The LED lamp according to claim 5, wherein a top portion of the cylindrical cover has a screw-like insertion portion.   The resin cover has a cylindrical shape, a top is provided with a screw thread, the mounting base has a disk shape, a bottom surface of the mounting base has a printed circuit board having a plurality of LEDs, and the transparent cover 3. The LED lamp according to claim 2, wherein the lid is joined to the cylindrical opening by a screw thread, and the top of the cylindrical shape has a screw-like insertion portion.   The LED lamp according to claim 7, wherein the resin cover includes a long one and a short one.   9. The LED according to claim 8, wherein the transparent lid can be adjusted in height at a position of the opening of the resin cover, and thus the focus of the plurality of LEDs can be adjusted. lamp.

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