KR20130079772A - Light emitting diode ball bulb for air circulation type - Google Patents

Light emitting diode ball bulb for air circulation type Download PDF

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Publication number
KR20130079772A
KR20130079772A KR1020120000459A KR20120000459A KR20130079772A KR 20130079772 A KR20130079772 A KR 20130079772A KR 1020120000459 A KR1020120000459 A KR 1020120000459A KR 20120000459 A KR20120000459 A KR 20120000459A KR 20130079772 A KR20130079772 A KR 20130079772A
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KR
South Korea
Prior art keywords
inverter
housing
absorbing plate
heat absorbing
led
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Application number
KR1020120000459A
Other languages
Korean (ko)
Inventor
박재덕
Original Assignee
주식회사 디에스이
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Priority to KR1020120000459A priority Critical patent/KR20130079772A/en
Publication of KR20130079772A publication Critical patent/KR20130079772A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/508—Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The present invention provides a housing coupled to an electrode socket, an inverter mounted inside the housing and supplying power to the LED module, a heat absorbing plate seated at the bottom of the inverter, an LED substrate in close contact with the heat absorbing plate and mounted with an LED element. An LED ball bulb comprising an LED module including a glass sphere coupled to a lower portion of the housing and embracing the LED element therein, wherein the air is discharged to the outside of the housing by being formed at a predetermined interval through the upper portion of the housing. Discharge hole; The inverter is configured above the inside of the housing, and inside the housing, air flows out of the housing, and an inverter outlet hole formed of an area of 8 to 20% of the area of the inverter substrate is formed; The heat absorbing plate is formed inside the housing so as to form a space between the inverter and the heat absorbing plate, in the case of a circular heat absorbing plate having a predetermined distance from the inverter, the heat absorbing plate is formed to be spaced at a quarter or more of the diameter of the heat absorbing plate; The internal air in the space absorbs the heat generated by the LED element and is discharged through the inverter outlet and air exhaust holes to cool the heat generated by the LED element. The internal air of the housing absorbs the heat generated by the LED element. By discharging to the outside through the outlet hole and the air discharge hole, the temperature of the LED element, the heat absorbing plate, and the inverter is lowered, and a space is formed between the inverter and the heat absorbing plate, so that the heat of the LED element is not directly transmitted to the inverter, Outflow hole and air discharge hole is configured to have an effect that the internal air of the housing is quickly discharged.

Description

Light Emitting Diode Ball Bulb For Air Circulation Type

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting diode (LED) ball bulb, and in particular, forms an air discharge hole penetrated through an upper portion of a housing in which an inner space is formed, and an inverter and a heat absorbing plate are fixed inside the housing. It relates to an air circulation LED ball bulb that forms spaced apart at intervals, and forms an inverter outlet hole in the inverter to cool the heat generated from the LED element while the internal air of the housing is discharged through the inverter outlet hole and the air outlet hole. .

Currently, discharge lamps such as fluorescent lamps, incandescent lamps and halogen lamps are used as light sources for indoor lighting in homes and offices. Since the discharge lamp has a high driving voltage, the energy consumption is large due to the boost of the power, and when discharged, the discharge lamp discharges discharge gas such as mercury, which is harmful to the human body or the environment.

In particular, the European Union prohibits the use of harmful substances such as lead, mercury, cadmium, hexavalent chromium (Cr6 +), PBB (polybromide binpenyl) and PBDE (polybrominated diphenyl ether) Establishment of Waste Electrical and Electronic Equipment Directive (WEEE), which allows producers to bear the cost of recycling of hazardous substances (RoHS (Restriction of Use of Hazardous Substances) and waste electrical and electronic products. And it has been implemented since July 1, 2006.

Accordingly, the necessity of research and development of a new luminaire that can replace a luminaire such as an incandescent lamp and a fluorescent lamp currently used is emerging.

In addition, with the rapid development of LED (Light emitting diode) related technologies, white LEDs that emit white light using blue LEDs and phosphors have emerged. Small size, low power consumption, semi-permanent life, no harmful emissions such as ultraviolet light, no environmentally friendly lighting source without mercury and discharge gas. have.

The LED ball bulb 100 of the prior art of Korean Patent Publication No. 10-0759803 is an LED element 141 which is a light source as shown in FIG. An LED substrate 140 to which the LED element 141 is fixed; Installed below the LED substrate 140 via a thermally conductive adhesive member to release heat generated from the LED element 141 to the outside, the edge is bent upwards to wrap the base of the glass sphere 150 to the outside A first heat sink plate for dissipating heat by direct thermal contact with a second heat sink formed with teeth formed at regular intervals around the horizontal disc and overlapping one or more overlapping portions below the first heat sink plate; A first heat sink 130 made of a plate; A second heat sink 160 of the flat bag type coupled with the first heat sink 130 to dissipate heat; A spherical glass sphere 150 surrounding the LED module 140; An inverter 20 provided with a constant voltage source and a constant current source to supply stable voltage and current to the LED module 140; A housing (110) accommodating the first and second heat sinks (130,160) and the inverter (20) while forming an appearance together with the glass sphere (150); Is installed in the housing 110 is configured to include a socket 111 for screwing fixedly connected to the external power supply source to supply the drive power to the LED module 140.

In general, LED bulbs have advantages such as fast lighting speed and low power consumption. However, the light emitting part is composed of a plurality of LED elements in the LED module, thereby generating a large amount of heat.

The above-described incandescent lamp replacement LED ball bulb of the prior art has a problem that the first heat sink and the second heat sink is configured in the housing in order to discharge the heat generated from the LED element, the overall structure is complicated and heavy.

In addition, the prior art has a problem that the temperature of the housing is raised because the air inside the housing is not circulated with the outside.

In addition, the prior art has a problem that the second heat sink is to use the inner space of the housing, the inner space of the housing is narrow, so that the inner space of the housing can not be efficiently used for heat dissipation.

In addition, the prior art has an indirect problem that the second heat sink is configured to reduce the waste of material costs and productivity.

The present invention has been made to solve the above problems, in the LED ball bulb, to form a through-air discharge hole through the upper portion of the housing formed in the inner space for cooling the heat generated by the LED element by air circulation, The inverter and the heat absorbing plate are formed at regular intervals so that a space is formed between the heat absorbing plate and the inverter inside the housing, and an inverter outlet hole having a static area is formed with respect to the inverter substrate area so that the internal air of the housing discharges air and discharges the air from the inverter. It provides an air circulation LED ball bulb that cools the heat generated by the LED (LED) device while being discharged through the ball.

The air circulation LED ball bulb according to the present invention is formed through the spaced apart at a predetermined interval on the upper portion of the main body of the air discharge hole for discharging the internal air of the housing; The inverter is configured above the housing, and an inverter outlet hole through which air inside the housing flows out is formed in the inverter substrate; The heat absorbing plate is formed spaced apart from the inverter at a predetermined interval in the housing so that a space is formed between the inverter and the heat absorbing plate.

In addition, the present invention is that the area of the inverter outlet hole is composed of 8 to 20% of the area of the inverter substrate.

In the present invention, the distance between the inverter and the heat absorbing plate is configured to be 1/4 or more of the diameter of the heat absorbing plate in the case of a circular heat absorbing plate.

In addition, the present invention is that the area of the air discharge hole configured in the housing is the same or more than the area of the inverter outlet hole.

In the present invention, the inverter outlet hole is composed of one or more.

The air circulation LED ball bulb according to the present invention has an effect of lowering the temperature of the LED element, the heat absorbing plate, and the inverter by absorbing heat generated from the LED element and discharging it to the outside through the inverter outlet hole and the air discharge hole. There is.

In addition, the present invention has the effect that a space is formed between the inverter and the heat absorbing plate is not directly transferred to the inverter heat generated from the LED element.

In addition, the present invention has an effect that the area of the inverter outlet hole and the air discharge hole is configured to a predetermined size or more of the inverter substrate area to quickly discharge the internal air of the housing to the outside of the housing.

In addition, the present invention has the effect of extending the life of the LED element, the heat absorbing plate and the inverter is lowered.

In addition, since the present invention has a large cooling effect, a second heat sink is not required, and thus the structure of the housing is simple, and the housing of the synthetic resin can be used, thereby reducing the overall weight, thereby increasing productivity.

1: LED ball bulb cross-sectional view of the prior art.
2 is an exploded perspective view of the air circulation LED ball bulb of the present invention.
3 is a cross-sectional view of the air circulation LED ball bulb of the present invention.
4 is a perspective view of the inverter of the present invention.
5 is a perspective view of an inverter of another embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, although the Example of this invention is described in detail, this invention is not limited to a following example, unless the summary is exceeded.

2 is an exploded perspective view of the air circulation LED ball bulb of the present invention, a cross-sectional view of the air circulation LED ball bulb of the present invention of FIG. 3, an inverter perspective view of the present invention of FIG. 4, and an inverter of another embodiment of the present invention of FIG. It demonstrates with a perspective view.

The present invention is to replace the incandescent lamp used as a light source for indoor lighting, such as homes and offices in the light emitting diode bulb using the LED absorbs the heat generated from the LED module 40 It relates to an air circulation LED ball bulb is discharged to the outside of the housing through the air discharge hole to cool the LED (LED) module 40.

The present invention is a large configuration of the socket 11, the housing 10, the inverter 20, the heat absorbing plate 30, the LED (LED) module 40 and the glass sphere 50 in the air circulation LED ball bulb The housing 10 is made of a small configuration such as the air discharge hole 14, the inverter 20, the inverter outlet hole 21 and the like.

The socket 11 is a screw thread is formed along the outer diameter so as to be screwed to the power source, the electrode is formed on the upper side to receive the driving power from the outside, the upper outer peripheral surface is composed of a male screw upper end socket 11 ) Is screwed into the inner surface.

The housing 10 has a wider area as it approaches the lower part, forms an inner space through which the upper and lower parts are penetrated without a lower surface, and has a short fallopian tube shape made of a thermal conductor synthetic resin, and does not include a heat dissipation protrusion. LED) can reduce the weight of the ball bulb and lower the temperature of the heat generated by the LED module 40.

The housing 10 has a short fallopian tube-shaped body 12, which is integrally extended with the main body 12 on the upper inner surface of the main body 12, protrudes downward, seats the inverter 20, and is screwed with the inverter 20. A plurality of seating protrusions are configured, the bottom inner surface of the body 12 is integrally extended with the body 12 and formed in a ring shape protruding downward, and a seating portion 13 for seating the heat absorbing plate 30, An air discharge hole 14 is formed at the upper portion of the main body 12.

The air discharge hole 14 is formed to be spaced apart at regular intervals near the upper portion of the main body 12 of the housing 10, that is, the socket 11 is coupled to allow the internal air of the housing 10 to be discharged to the outside. Play a role.

The area of the air discharge hole 14 is equal to or equal to the area of the inverter outlet hole 21 of the inverter 20 described below so that the discharge of the internal air does not cause a bottleneck in the air discharge hole 14. It consists of the above.

When the area of the air discharge hole 14 is smaller than the area of the inverter outlet hole 21, the internal air of the housing 10 is quickly discharged to the outside of the housing 10 by receiving the resistance of the air discharge hole 14. Because you will not be able to.

 The air discharge hole 14 may be configured on the upper surface of the main body 12 of the housing 10, but the aesthetics of the housing 10 in which the air discharge hole 14 is not visible in view of the air circulation LED ball bulb is used. It is preferable to provide in the main body 12.

The seating part 13 is formed by stacking the heat absorbing plate 30 and the LED module 40 from the upper side to the lower side by screwing them at the same time, and the housing 10 body 12 at the end of the seating part 15. The height difference of the end of the heat absorbing plate 30 and the LED module 40 is configured to be the same or slightly larger than the height of the side layer.

On the other hand, the ring flange 15 is formed integrally with the lower inner surface of the housing 10 and protrudes downward and is formed in a ring shape and embraces the heat absorbing plate 30 on the outer circumferential surface thereof.

The end of the ring flange 15 is configured in the same position as the lower end of the lower portion of the housing 10, that is, the main body 12, and the lower end of the ring flange 15 and the main body 12 of the housing 10 are spaced apart from each other Then, the glass sphere 50 described below is inserted into the space spaced apart from the end of the ring flange 15 and the lower end of the main body 12.

The plurality of seating protrusions and seating parts 13 are spaced apart at a predetermined distance from inside the housing 10 so that the inverter 20 is seated on the seating protrusions, and the heat absorbing plate 30 and the LED module are mounted on the seating part 13. When 40 is seated on the side layer, the lower surface of the inverter substrate 22 and the upper surface of the heat absorbing plate 30 are spaced apart by a predetermined distance so that the space between the inverter substrate 22 and the heat absorbing plate 30 inside the housing 10. Is formed.

When the heat absorbing plate 30 is positioned at the inner diameter of the ring flange 15, the inner circumferential surface of the ring flange 15 is in contact with or adjacent to the outer circumferential surface of the heat absorbing plate 30, and the seating portion 13 seats the heat absorbing plate 30. To stop the insertion of the inside of the housing 10 any more, and fix the position thereof. After the heat absorbing plate 30 is seated, the LED module 40 is contacted with the screw on the heat absorbing plate 30. The heat absorbing plate 30 and the LED module 40 are fastened to the seating part 13.

The inner space of the hollow part having the shape of the fallopian tube of the housing 10 converts an alternating current input from the socket 11 through an electrode wire into a direct current suitable for the LED bulb and provides the LED module 40 to the LED element 41. An inverter 20 configured with a driving circuit for driving the upper surface of the housing 10 is mounted.

The inverter 20 supplies a DC current to the LED module 40, and is inserted into and mounted on the inner side of the housing 10, and electrically by electrodes and electrode wires formed on the upper side of the housing 10 in the housing 10. The connection is configured and electrically connected to the LED module 40 through a wiring or the like.

The substrate of the inverter 20 is made of a resin-based material that is commonly used, the inverter outlet hole 21 is formed in the center of the substrate of the inverter 20, the air inside the housing flows out through the inverter, The superheated air in the interior of the glass sphere 50 through the outlet hole 21 passes through the substrate outlet hole 43 of the LED substrate 42 and the outlet hole 31 of the heat absorbing plate 30, which will be described later. The superheated air penetrates into the internal space of (10).

The area of the inverter outlet holes 21 and 21 'is composed of 8 to 20% of the area of the inverter substrate 22, and one or more inverter outlet holes 21 and 21' according to the arrangement of the circuit of the inverter 20. When the inverter outlet holes 21 'are two or more, the sum of the areas of all the inverter outlet holes 21' is 8-20% of the area of the inverter substrate 22.

The configuration of two or more inverter outlet holes 21 ′ has an advantage in that the circuit of the inverter substrate 22 may be formed in the portion of the inverter substrate 22 where the circuit is not configured.

When the area of the inverter outlet holes 21 and 21 'is less than or equal to 8% of the area of the inverter substrates 21 and 21', the internal temperature of the housing 10 is 20% or more without a large temperature difference from the prior art. In this case, the internal temperature of the housing 10 decreases a lot, but the area of the inverter substrates 21 and 21 'is reduced so that it is difficult to construct a circuit.

The heat absorbing plate 30 is upper part is in close contact with the seating portion 13 is seated on the stabilization part 13, the lower part is in close contact with the LED module 40 to be described later is formed in the housing 10, It is formed in a thickness and absorbs heat generated from the LED element 41, that is, the LED module 40, made of a material such as aluminum, and heat exchanges with heat generated from the LED module 40 to absorb heat and accumulate in the body. 10) Cooled by heat exchange with internal air.

The heat absorbing plate 30 is a plate made of a material having heat conductivity such as aluminum and closely adhered to one surface of the LED substrate 42, and a through hole 31 is formed in the center thereof, and the heat absorbing plate 30 is formed near the edge or the edge. A screw groove or a screw hole to which the screw to be fastened to the housing 10 is formed at a predetermined interval.

Since the heat absorbing plate 30 is formed inside the housing 10, the shape of the edge of the heat absorbing plate 30 and the shape of the inner edge of the housing 10 correspond to the edge of the heat absorbing plate 30 and the housing 10. The shape of the inner edge is the same and the thickness of the heat generated from the LED element 41, that is, the brightness of the LED (in other words, the watts WATT) may vary.

That is, the heat absorbing plate 30 may be laminated in two or three, such that the number of installations is elastic, and as the number of stacks increases, the length of the screw used for fastening also becomes longer, and the heat absorbing plate 30 is The heat absorbed is also increased so that the high-watt LED module 40 increases the number of heat absorbing plate (30).

The heat absorbing plate 30 may be configured such that the shape of the inner edge of the housing 10 is not the same. However, since the heat absorbing plate 30 does not absorb all of the heat of the LED substrate 42 from the heat absorbing plate 30, the efficiency is lowered. It is preferable that the shape of the inner edge of the housing 10 be the same.

The LED module 40 is used as a light source of the lamp and includes an LED substrate 42 formed inside the housing 10 and the glass sphere 50 and mounted with the LED element 41.

The LED module 40 includes an LED substrate 42 having an electrode circuit formed thereon so as to electrically connect the LED elements 41, and a plurality of LED modules 42 attached to the lower portion of the LED substrate 42 and electrically connected to each other by an electrode circuit. It consists of four LED elements (41).

The LED substrate 42 is made of a resin-based material that is commonly used, and the substrate outlet hole 43 is formed in the center thereof, that is, the substrate outlet hole 43 is formed in the center of the LED module 40. .

The glass sphere 50 is mounted to the front portion of the LED module 40 to inject light emitted from the LED element 41 to diffuse to the outside, the LED element 41 is an angle at which light is diffused unlike the discharge lamp Since it is small is configured in front of the LED module 40 to increase the area to be illuminated by the light irradiation angle to increase the more efficient lighting effect.

In addition, the material of the glass sphere 50 is used as a transparent glass in order to improve the light transmittance, but acrylic (acrylic) or polycarbonate (polycarbonate) may be used and various colors of glass, acrylic to exhibit various lighting effects Or polycarbonate may be used.

The glass sphere 50 is a spherical cover made of glass and detachable to the housing 10, the upper surface of the glass sphere 50 of the flange-shaped extending integrally with the glass sphere 50 body The engaging portion is configured.

The outer diameter of the coupling portion of the glass sphere 50 and the lower inner diameter of the housing 10 are in close contact with each other. When inserted into and coupled between the outer circumferential surface, the glass sphere 50 is coupled to the housing 10.

The glass sphere 50 and the housing 10 may be coupled to each other by constituting a screw on the inner circumferential surface or the outer circumferential surface of the glass sphere 50 and the housing 10, or may be coupled using an adhesive such as a bond. It is also possible to form a screw hole penetrating the lower part of the housing and fasten the screw to the screw hole.

The coupling portion of the glass sphere 50 is configured to be in close contact with the lower inner diameter of the housing 10, when the coupling portion of the glass sphere 50 is coupled to the housing 10 of the lower inner peripheral surface of the housing 10 and the ring flange 15 Between the outer peripheral surface protrudes to the upper inner surface of the housing 10 is not exposed to the outside of the housing 10.

When the glass sphere 50 is acrylic or polycarbonate, the one-touch glass sphere 50 may be fastened by a one-touch fastening method, and the one-touch fastening method may have grooves formed on the inner surface or the outer surface of the housing 10 at a predetermined interval. And a protrusion coupled to the groove forms a protrusion on an inner surface, an outer surface, or an upper end of the glass sphere 50 of acrylic or polycarbonate, and the protrusion is one-touch coupled to the groove.

The one-touch fastening method is configured by confronting the glass sphere 50 and the housing 10 of acrylic or polycarbonate and then applying pressure to each end of the glass sphere 50 and the housing 10 of the acrylic or polycarbonate. The glass sphere 50 of acryl or polycarbonate is fastened to the 10.

When the inverter 20 is placed in the seating protrusion of the housing 10 while the inverter 20 is connected to the LED module 40 and the electrode wire, the seating protrusion is no longer inside the housing 10. The inverter 20 is fixed as a screw at the position while stopping the insertion into the.

In this state, the heat absorbing plate 30 and the LED module 40 are sequentially inserted into the ring flange 15 to seat the heat absorbing plate 30 on the seating part 13, and then the heat absorbing plate 30 and the LED module ( When the 40 is stacked, the heat absorbing plate 30 and the LED module 40 are screwed into the seating unit 13 through the heat absorbing plate 30 and the LED module 40 as screws, and the heat absorbing plate 30 and the LED module 40 are attached to the seating unit 13. Is fastened.

When the heat absorbing plate 30 and the LED module 40 is fastened to the seating part 13, the glass sphere 50 is fastened to the housing 10 by screws or one-touch, thereby completing the assembly of the present invention.

When the assembly is completed as described above, the glass sphere 50 is formed inside the LED module 40 is coupled to the housing 10, the glass sphere 50 is located in the interior space while the LED element 41 is the housing ( 10 is directed toward the outside of the housing 10 to irradiate light to the outside of the housing 10.

The heat absorbing plate 30 and the inverter 20 are configured to be spaced apart from the inside of the housing 10, and the space, ie, the interior of the housing 10, is spaced apart by a predetermined distance between the heat absorbing plate 30 and the inverter 20. The space is formed so that the internal air of the space absorbs the heat generated by the LED element 41 and is discharged through the inverter outlet hole 21 and the air discharge hole 14 to recover the heat generated by the LED element 41. Cool.

The distance between the inverter 20 and the heat absorbing plate 30 is configured to be 1/4 or more of the diameter of the heat absorbing plate in the case of a circular heat absorbing plate.

When the separation distance is less than 1/4 of the diameter of the heat absorbing plate, the space formed by the heat absorbing plate 30 and the inverter 20 is narrow so that internal air cannot sufficiently absorb the temperature of the heat absorbing plate 30.

 The upper surface of the LED substrate 41 is in close contact with the lower surface of the heat absorbing plate 30, the upper surface of the heat absorbing plate 30 is exposed to the internal space of the housing 10, and the lower surface of the inverter 20 also has a housing 10. The substrate outlet hole 43 of the LED module 40 and the outlet hole 31 of the heat absorbing plate 30 are configured to correspond to each other, and the upper surface of the inverter 20 is spaced apart from the inner upper surface of the housing. The inverter outlet hole 21 of the inverter 20 is approached with the air discharge hole (14).

According to the present invention, the internal air of the housing 10 passes through the inverter outlet hole 21 of the inverter 20 and is discharged to the outside of the housing 10 through the air discharge hole 14 of the housing 10. 41) cools the heat generated, and the internal air of the glass sphere 50 is discharged to the substrate outlet hole 43 of the LED module 40 and the outlet hole 31 of the heat absorbing plate 30 to the housing 10. It is discharged to the outside of the housing 10 through the air discharge hole 14 together with the internal air of the cools the heat generated by the LED element 41.

The internal air of the housing 10 is naturally circulated through the air discharge hole 14 to absorb heat generated from the LED element 41, thereby preventing the temperature of the LED element 41 from rising and the LED element 41. To cool.

The internal air of the glass sphere 50 directly exchanges heat with the LED element 41 to prevent the temperature of the element 41 from rising, thereby cooling the LED element 41 and the temperature of the glass sphere 50 is increased. Passing through the substrate outlet hole 43 of the 40 and the outlet hole 31 of the heat absorbing plate 30 is introduced into the space formed between the inverter 20 and the heat absorbing plate 30 to the Passed through the inverter outlet hole 21 is discharged to the outside through the air discharge hole 14 of the housing 20.

The internal air of the housing 10 absorbs heat from the heat absorbing plate 30 and the inverter 20 in the inner space of the housing 10 and is discharged to the outside of the housing 10 to absorb the heat absorbing plate 40 and the inverter 20. ) To prevent the temperature from rising, and the internal air of the glass sphere 50 absorbs the heat of the LED module 40 and flows into the internal space of the housing 10 to allow the LED module 40 and the heat absorbing plate 30. And absorbs heat from the inverter 20 and is discharged to the outside of the housing 10 to prevent the temperature of the LED module 40, the heat absorbing plate 40, and the inverter 20 from rising.

Therefore, the air circulation LED ball bulb of the present invention is composed of the air discharge hole 13, the air circulation system is formed so that the internal air is discharged to the outside of the housing 10 through the air discharge hole 14 LED module 40 ), The heat absorbing plate 30 and the inverter 20 are cooled.

The following Table 1 shows that the brightness of the home 5W LED bulb corresponds to the brightness of 60W of the incandescent lamp, so that the first and second heat sinks are configured in a state in which the 5W LED bulb is lit for 48 hours continuously using a 4.0mm heat absorbing plate. It is the result of measuring the inside and outside average temperature of the housing | casing and the temperature of a heat absorbing plate with respect to the LED ball bulb of this technology and this invention air circulation LED ball bulb.

Heat absorbing plate
Thickness (mm)
air
cycle
system Prior art
1st and 2nd heatsink
Housing average temperature (℃) The present invention:
Housing average temperature (℃) Heat absorbing plate
Average temperature
(℃)
Out inside Out inside 4.0
none 62.5 73.1 - - 74.5 has exist - - 48.4 56.0 60.0

Generally, since the allowable use temperature of the LED element is within 85 ° C., when the ambient temperature in which the LED element is used is within 85 ° C., the LED element can be sufficiently used.

In the prior art, the internal average temperature of the housing is 73.1 ° C., which is within the allowable use temperature of the LED element, but the life of the LED element may be shortened at a high temperature.

In the case of the present invention, the average temperature of the heat absorbing plate is maintained 14.5 ℃ lower than the prior art in the present invention and the internal average temperature of the synthetic resin housing is 56.0 ℃, the internal average temperature of the housing 73.1 ℃ than the prior art composed of the first and second heat sinks It was much lower than that and it was judged that the temperature load was not transferred to the LED device.

Table 2 below shows the results of self-experimentation of the housing by the ratio of the area of the inverter outlet hole and the inverter substrate for the 5W air circulation LED ball bulb in a state where the heat absorbing plate thickness of 4.0 mm of the heat absorbing plate of the present invention was turned on for 48 hours continuously.

Area ratio (%) 4 7 10 13 16 19 22 housing
Internal average temperature (℃) 68.3 63.5 59.2 57.6 55.8 52.6 50.0

According to the test results, when the area of the inverter outlet hole is less than 7% of the area of the inverter substrate, the internal temperature of the housing is 68.3 ° C., which does not generate much temperature difference from the prior art, and when it is more than 22%, the internal temperature of the housing decreases much. However, the area of the inverter substrate has been greatly reduced, making it difficult to construct a circuit.

Table 3 below shows the results of self-testing of the housing by the distance between the inverter and the heat absorbing plate with respect to the 5W air circulation LED ball bulb in the state of lighting 48 hours continuously using the 4.0 mm thick heat absorbing plate of the present invention.

Separation 1 / 3.0 1 / 3.5 1 / 4.0 1 / 4.5 1 / 5.0 housing
Internal average temperature (℃) 68.7 62.1 56.8 54.2 52.4

In the above test results, when the distance between the inverter and the heat absorbing plate is less than 1 / 3.5 of the heat absorbing plate diameter, the internal average temperature of the housing is 62.1 ° C., and the LED element has an acceptable operating temperature within 85 ° C., but the effect of the present invention is greatly expected. It was determined that the space between the heat absorbing plate and the inverter is narrow and the internal air does not sufficiently absorb the temperature of the heat absorbing plate 30.

Therefore, in the air circulation LED ball bulb of the present invention, the heat generated by the LED element 41 is absorbed by the heat absorbing plate 30, but the heat absorbing plate 30 is spaced apart from the inverter 20 so as to be directly transferred to the inverter 20. However, the LED module 40, the heat absorbing plate 30, and the inverter 20 are cooled by circulation in the air, so that the internal temperature of the housing 10 is maintained at a lower temperature much lower than the allowable operating temperature of 85 ° C. ) Can be kept more stable.

Therefore, the air circulation LED ball bulb of the present invention absorbs heat generated from the LED element and discharges it to the outside through the inverter outlet hole and the air discharge hole, thereby lowering the temperature of the LED element, the heat absorbing plate, and the inverter. In addition, a space is formed between the inverter and the heat absorbing plate so that heat generated from the LED element is not directly transmitted to the inverter, and the area of the inverter outlet hole and the air outlet hole is configured to be larger than a predetermined size of the inverter substrate area. It is quickly discharged to the outside of the housing, the temperature of the LED element, the heat absorbing plate and the inverter is lowered, so that their lifespan is extended.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention.

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

10: housing 11: socket
12: main body 13: seating part
14: air outlet 15: ring flange
20, 20 ': inverter 21, 21': inverter outlet
22, 22 ': inverter board 30: heat absorbing plate
31: outlet 40: LED module
41: LED element 42: LED substrate
50: glass sphere

Claims (5)

Socket connected to electrode, housing coupled to socket, inverter seated inside and supplying power to LED module, heat absorbing plate seated on lower part of inverter, LED mounted in close contact with heat absorbing plate and mounted with LED element An LED ball bulb comprising a LED module including a substrate, a glass sphere coupled to the lower portion of the housing and embracing the LED element therein,
An air discharge hole formed in the upper portion of the housing to be spaced apart at regular intervals so that the internal air of the housing is discharged to the outside;
The inverter is configured above the housing, and an inverter outlet hole through which air inside the housing flows out is formed in the inverter substrate;
A heat absorbing plate is formed spaced apart from the inverter at a predetermined interval in the housing such that a space is formed between the inverter and the heat absorbing plate;
The air circulation LED ball bulb characterized in that the internal air in the space absorbs the heat generated by the LED element and is discharged through the inverter outlet hole and the air discharge hole to cool the heat generated by the LED element.
The method of claim 1,
The area of the inverter outlet hole is an air circulation LED ball bulb, characterized in that consisting of 8 to 20% of the area of the inverter substrate.
The method of claim 1,
The distance between the inverter and the heat absorbing plate is a circular heat absorbing plate, the air circulation LED ball bulb, characterized in that composed of 1/4 or more of the diameter of the heat absorbing plate.
The method of claim 2,
Air circulation LED ball bulb, characterized in that the area of the air discharge hole configured in the housing is equal to or larger than the area of the inverter outlet hole.
The method of claim 2,
Air inverter LED ball bulb, characterized in that the inverter outlet hole is composed of one or more.
KR1020120000459A 2012-01-03 2012-01-03 Light emitting diode ball bulb for air circulation type KR20130079772A (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120000459A KR20130079772A (en) 2012-01-03 2012-01-03 Light emitting diode ball bulb for air circulation type

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101325086B1 (en) * 2013-07-30 2013-11-20 주식회사 디에스이 Light emitting diode module and anufacturing method thereof
WO2015030502A1 (en) * 2013-08-28 2015-03-05 Kang Seong Jin Lamp comprising envelope having vent
KR20180068031A (en) * 2016-12-13 2018-06-21 시그마엘이디 주식회사 Led lamp and method for manufacturing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101325086B1 (en) * 2013-07-30 2013-11-20 주식회사 디에스이 Light emitting diode module and anufacturing method thereof
WO2015030502A1 (en) * 2013-08-28 2015-03-05 Kang Seong Jin Lamp comprising envelope having vent
KR20180068031A (en) * 2016-12-13 2018-06-21 시그마엘이디 주식회사 Led lamp and method for manufacturing the same

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