CN202216041U

CN202216041U - High-voltage alternating current light-emitting diode (LED) ball bulb

Info

Publication number: CN202216041U
Application number: CN2011203454065U
Authority: CN
Inventors: 李忠训
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-15
Filing date: 2011-09-15
Publication date: 2012-05-09
Anticipated expiration: 2021-09-15

Abstract

The utility model discloses a high-voltage alternating current light-emitting diode (LED) ball bulb, which belongs to the technical field of LED lighting and comprises a lamp holder assembly, an aluminum radiator, an LED assembly and an optical face shield. The LED assembly is integrated onto a printed circuit board (PCB) through an alternating current LED lamp and a rectifying bridge circuit, the aluminum radiator is in an integral fin structure and in rivet connection with the lamp holder assembly, and an aluminum plate is arranged at the lower portion of the LED assembly and bonded with the LED assembly through silica gel to be further installed on the aluminum radiator. The high-voltage alternating current LED ball bulb is energy-saving, high in luminance, long in service life and low in cost. Compared with a direct current LED lamp, an alternating current (AC)/direct current (DC) converter and a constant flow source with high cost are omitted, thereby being more energy-saving, longer in service life and higher in cost performance. The high-voltage alternating current LED ball bulb can replace common incandescent bulb for use.

Description

High-voltage alternating LED bulb lamp

Affiliated technical field

The utility model relates to led light source, and especially room lighting is used the LED lamp, belongs to the LED lighting technical field.

Background technology

At present, room lighting uses the LED lamp to be mostly lamp tube type, and led light source is the semiconductor devices of low-voltage and high-current work, must provide the suitable DC current could be normally luminous.Usually adopt transformer or Switching Power Supply step-down, then exchange conversion is become direct current, be transformed into dc constant current power supply again.Therefore the system applies scheme of DC driven led light source must be: transformer+rectification (or Switching Power Supply)+constant-current source.Must leave certain space in the LED light fixture and settle this type of module.The space is very limited for E27 type standard screw socket bulb lamp, and no matter is via transformer+rectification or Switching Power Supply step-down, and direct-current LED has 15～30% electric power to be depleted when AC-DC conversion approximately, so system effectiveness is difficult to reach more than 90%.If can be with the direct driving LED light source luminescent of alternating current, the system applies scheme will be simplified greatly, and system effectiveness then is easy to reach more than 90%.

The utility model content

To the problems referred to above, the utility model provides a kind of direct LED bulb lamp with AC driving.

The utility model solves the technical scheme that its technical problem adopted: high-voltage alternating LED bulb lamp comprises lamp adapter assembly, aluminium radiator, LED assembly and optics face shield; The LED assembly is integrated on the pcb board by AC LED lamp and rectifier circuit; Aluminium radiator is whole fin structure, rivets with lamp adapter assembly; LED assembly bottom is provided with aluminium sheet, and the two is bondd by silica gel, is installed on the aluminium radiator again.

The beneficial effect of the utility model is, energy-conserving and environment-protective, and brightness is high, and in the life-span long (about 3-5 ten thousand hours), cost is low, compares with the direct-current LED lamp, has saved high AC/DC converter and the constant-current source of cost, and cost performance is higher.Instead ordinary incandescent lamp bubble uses.

Description of drawings

Fig. 1 is the utility model split structural representation;

Fig. 2 is the utility model front view;

Fig. 3 is a LED assembly front view among Fig. 1;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is an aluminium radiator front view among Fig. 1;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 is the upward view of Fig. 5;

Fig. 8 is a LED assembly circuit schematic diagram.

Parts and numbering among the figure:

The 1-lamp adapter assembly, the 2-aluminium radiator, the 3-LED assembly, 4-optics face shield,

The 5-aluminium sheet, the 6-power line.

The specific embodiment

Below in conjunction with embodiment the utility model is further specified.

Referring to Fig. 1-8, high-voltage alternating LED bulb lamp comprises lamp adapter assembly 1, aluminium radiator 2, LED assembly 3 and optics face shield 4; LED assembly 3 is integrated on the pcb board by AC LED lamp and rectifier circuit; Aluminium radiator 2 is whole fin structure, with lamp adapter assembly 1 riveted joint; LED assembly 3 bottoms are provided with aluminium sheet 5, and the two is bondd by silica gel, are installed on the aluminium radiator 2 again.

Lamp adapter assembly 1 is an E27 screw socket type.Optics face shield 4 is the glass epoxy material.Durable, cracky does not need extra package, convenient transportation.Optics face shield 4 is spirally connected with aluminium radiator 2.

Two power supply end points of LED assembly 3 connect with power line 6, two solder joint welding of power line 6 other ends and lamp adapter assembly 1.

The direct current that rectifier bridge is obtained is pulsating direct current; The luminous of LED lamp also flashed; The LED lamp has the characteristic of the continuous light of outage twilight sunset; Twilight sunset can keep tens microseconds, and because of the memory of human eye convection current moving light spot has inertia, human eye is continuously luminous to the mode of operation deciphering of the luminous+twilight sunset of LED lamp source as a result.The LED lamp has half the time in work, have half the time having a rest, thereby heating is able to reduce 40%～20%.Therefore the service life of AC LED is long than direct-current LED.

Aluminium radiator is a kind of passive radiating mode, has practiced thrift energy consumption, and production cost.

Fin is 16 leaves, be evenly distributed in the aluminium radiator outside, and each ptychopterygium sheet is thick more the closer to the thermal source place, and is thin more the closer to edge, guarantees the heat that LED produces, and can promptly be drawn out of and be accumulated in the aluminium radiator.Owing to temperature difference reason, the heat of accumulating, a part can be dispersed in the air with the form of radiation; Some can be transmitted on the fin, and the convection current through air is pulled away.The 1.2-1.5 that tooth pitch is times tooth depth is beneficial to the heat that the fin ambient air flows, the LED generation is taken away in convection current.Entire radiator has guaranteed the unimpeded of heat dissipation channel (heat conduction-heat transfer-heat radiation).

This aluminium radiator adopts one-step die casting, and thermal capacitance is big, and the heat accumulation ability is strong, and system's thermal balance is prone to not undergo mutation, thereby has guaranteed that the lamp pearl is operated in a relatively stable dynamic thermal balance; Heat transfer and heat dissipation channel are integrated, reduce to minimum to the thermal resistance between heat transfer and the heat dissipation channel effectively, and heat can be diffused on system surfaces and the heat-dissipating fin soon.

In the technological design of bulb lamp, be decided to be 60.6: 106 to whole wide high proportion, near golden ratio 0.618; It is coniform, prudent in the device greatly for coiled hair that the bulb lateral plan is, and meets the orientation of aesthetics of consumer to product.

Adopt AC LED to evade the shortcoming that the necessary distribution source of direct-current LED drives effectively, simplified system architecture, reduced system cost; And AC LED is arranged, and structure is similar to rectifier bridge, and under ac frequency 60Hz drove, the LED matrix is alternately to light with the frequency of per second 60 times, and was longer than the direct-current LED life-span.

Claims

1. a high-voltage alternating LED bulb lamp comprises lamp adapter assembly (1), aluminium radiator (2), LED assembly (3) and optics face shield (4); It is characterized in that LED assembly (3) is integrated on the pcb board by AC LED lamp and rectifier circuit; Aluminium radiator (2) is whole fin structure, rivets with lamp adapter assembly (1); LED assembly (3) bottom is provided with aluminium sheet (5), and the two is bondd by silica gel, is installed on the aluminium radiator (2) again.

2. high-voltage alternating LED bulb lamp according to claim 1 is characterized in that, described lamp adapter assembly (1) is an E27 screw socket type.

3. high-voltage alternating LED bulb lamp according to claim 1 is characterized in that described optics face shield (4) is the glass epoxy material.