CN202927550U

CN202927550U - LED bulb lamp

Info

Publication number: CN202927550U
Application number: CN2012205808586U
Authority: CN
Inventors: 匡正芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2013-05-08
Anticipated expiration: 2022-10-30

Abstract

The utility model provides an LED (light emitting diode) bulb lamp. The novel LED bulb lamp comprises a lamp head socket (30) internally provided with a driver (31), wherein a lamp head (40) is connected with the lamp head socket (30); a tapered aluminum cup radiator (20) is formed by punching a thin aluminum board, and firmly fixed on the lamp head socket (30) directly by screws (32); a heat-conducting board (60) is firmly fixed by screws (33), and downward pressed on the lamp head socket (30), so that the heat-conducting board (60) is tightly connected with the punched aluminum cup radiator (20); a tapered wall of the heat-conducting board (60) and an inner wall of the punched aluminum cup radiator (20) are coated with heat-conducting silicone grease or heat-conducting silica gel (21) for reducing heat resistance of the connection; a printed circuit board (63) welded with LEDs (64) is firmly fixed on the heat-conducting board (60) by screws (61); the printed circuit board (63) and the heat-conducting board (60) are coated with heat-conducting silicone grease or heat-conducting silica gel (62) for reducing heat resistance; and the punched aluminum cup radiator (20) is glued and connected with a lampshade (10). The novel LED bulb lamp is lower in weight, better in lighting effect and longer in service life.

Description

A kind of LED bulb lamp

Technical field

The utility model relates to lighting engineering, particularly adopts the LED bulb lamp of the stamping aluminium cup radiator of aluminium sheet.

Background technology

Various types of light sources take LED as luminescent device is progressively replacing various traditional light sources, as incandescent lamp, and fluorescent lamp etc.The luminous efficiency of LED descends with the rising of its junction temperature, so LED light source is all with radiator.The section bar aluminium cup radiator that existing each type LED light sources generally all adopts the aluminium section bar of casting forming aluminium cup radiator or extrusion modling to make through machined.These molding heat radiator techniques are comparatively complicated, and on structural design and moulding process, the shell wall of these radiators is thicker, and the inner space is less, and thermally conductive pathways is longer, and price is more expensive.

Summary of the invention

The utility model provides a kind of LED bulb lamp, and this Novel LED bulb lamp adopts aluminium sheet stamping forming aluminium cup radiator (hereinafter to be referred as punching press aluminium cup).This punching press aluminium cup is because wall is thin, and radiating effect is better than the traditional heat-dissipating devices such as aluminium section bar aluminium cup radiator, die casting aluminium cup radiator.This punching press aluminium cup inner space is larger, has facilitated design, manufacturing, the installation of driver.This punching press aluminium cup also has the advantages such as moulding process is simple, easy to process, and cost is low, and is lightweight, has solved molding heat radiator complex process in prior art, processing difficulties, and Heavy Weight, is made, installs comparatively the problem such as difficulty at the design of the high and driver of cost.

This Novel LED bulb lamp comprises the bulb socket of built-in drive, lamp holder is connected with bulb socket, aluminium cup radiator directly is fixed on bulb socket with screw, heat-conducting plate with screw fastening and under be pressed on bulb socket, combine closely to guarantee heat-conducting plate and punching press aluminium cup, scribble heat-conducting silicone grease or heat conductive silica gel between the heat-conducting plate conical surface and punching press aluminium cup inwall, be welded with the use in printed circuit board screw fastening of LED on heat-conducting plate, scribble heat-conducting silicone grease or heat conductive silica gel between printed circuit board (PCB) and heat-conducting plate, the gluing of punching press aluminium cup is connected to lampshade.Lamp holder can be the standardization lamp holders such as B22, E27, and bulb socket is made of plastic, is reinforced insulation, and its top is sealed, if the creep age distance long enough, its top also can be opened.Punching press aluminium cup directly is fastened on bulb socket with screw.Punching press aluminium cup can be designed to the surface of revolution of similar taper; Also can be designed to appearance with the beaker flask of tooth bar line, to increase area of dissipation.

A custom-designed heat-conducting plate, this heat-conducting plate are also stamping with thin aluminum sheet.Heat-conducting plate can be designed to the large little conical disc of opening in bottom; Also can be designed to the large conical disc of the little opening in bottom; Can also be designed to the little opening in bottom large, a boss protruding upward is arranged in the middle of it.The tapering of heat-conducting plate cone wall must and punching press aluminium cup on to be mated the tapering of part consistent, closely engage to guarantee both, heat-conducting plate is bored between wall and punching press aluminium cup inwall should scribble heat-conducting silicone grease or heat conductive silica gel, in order to reduce the thermal resistance of this combination.Heat-conducting plate with screw fastening and under be pressed on bulb socket, combine closely to guarantee heat-conducting plate and punching press aluminium cup.

The printed circuit board (PCB) that is welded with LED that heat conductivility is good is arranged on heat-conducting plate, this printed circuit board (PCB) is generally made by aluminium base or double face copper, the described printed circuit board (PCB) that is welded with LED, the above can be welded with one or several great power LEDs, also can be welded with many low-power LEDs densely coveredly, this use in printed circuit board screw fastening scribbles heat-conducting silicone grease or heat conductive silica gel between printed circuit board (PCB) and heat-conducting plate on heat-conducting plate, to reduce thermal resistance.

The input of LED driver is connected with lamp holder, and the wire of its output passes through wires hole corresponding on heat-conducting plate and printed circuit board (PCB), and on printed circuit board (PCB), corresponding pad welds together.

The gluing of punching press aluminium cup is connected to lampshade, and lampshade is made by PC plastics or glass, and lampshade can be transparent or surface frosted, can be also milky,

LED bulb lamp of the present utility model has adopted punching press aluminium cup radiator, and moulding process is simple, and wall is thin, and is lightweight, and due to optimizing structure design, thermally conductive pathways is short, and system's thermal resistance is low.Punching press aluminium cup inner space is large, is conducive to design, manufacturing, the installation of driver.This LED bulb lamp cost is lower, and light efficiency is higher, and the life-span is longer.

Description of drawings

Fig. 1 is that the utility model LED bulb lamp is with the cross-sectional schematic of taper punching press aluminium cup.

Fig. 2 is that the utility model LED bulb lamp is with the profile schematic diagram of taper punching press aluminium cup.

Fig. 3 is that the utility model LED bulb lamp is with the profile schematic diagram of tooth bar line punching press aluminium cup.

Fig. 4 is the cross-sectional schematic of other two kinds of heat-conducting plates of the present utility model.

The specific embodiment

In conjunction with above-mentioned description of drawings specific embodiment of the utility model.

as shown in Figure 1, the utility model provides a kind of LED bulb lamp. and this Novel LED bulb lamp comprises the bulb socket 30 of built-in drive 31, lamp holder 40 is connected with bulb socket 30, aluminium cup radiator 20 use screws 32 directly are fixed on bulb socket 30, heat-conducting plate 60 use screws 33 fastening and under be pressed on bulb socket 30, combine closely to guarantee heat-conducting plate 60 and punching press aluminium cup 20, scribble heat-conducting silicone grease or heat conductive silica gel 21 between heat-conducting plate 60 conical surfaces and punching press aluminium cup 20 inwalls, the printed circuit board (PCB) 63 use screws 61 that are welded with LED64 are fastened on heat-conducting plate 60, scribble heat-conducting silicone grease or heat conductive silica gel 62 between printed circuit board (PCB) 63 and heat-conducting

plate

60, 20 gluings of punching press aluminium cup are connected to lampshade 10.Lamp holder 40 can be the standardization lamp holders such as B22, E27, taper punching press aluminium cup 20, and its profile directly is fastened on bulb socket 30 with screw 32 as shown in Figure 2.Described punching press aluminium cup also can be designed to appearance with the punching press aluminium cup radiator 70 of tooth bar line, and its profile as shown in Figure 3.

A custom-designed heat-conducting plate 60, this heat-conducting plate 60 are also stamping with thin aluminum sheet.Heat-conducting plate 60 is designed to the large little conical disc of opening in bottom; Also can be designed to the large conical disc of the little opening in bottom, heat-conducting plate 80 as shown in Figure 4; Can also be designed to the little opening in bottom large, a boss protruding upward, heat-conducting plate 90 are as shown in Figure 4 arranged in the middle of it.The tapering of heat-conducting plate 60 cone walls must and punching press aluminium cup 20 on to be mated tapering partly consistent, to guarantee that both closely engage, should scribble heat-conducting silicone grease or heat conductive silica gel 21 between heat-conducting plate 60 cone walls and punching press aluminium cup 20 inwalls, in order to reduce the thermal resistance of this combination.Heat-conducting plate 60 use screws 33 fastening and under be pressed on bulb socket 30, combine closely to guarantee heat-conducting plate 60 and punching press aluminium cup 20.

The printed circuit board (PCB) that is welded with LED64 63 that heat conductivility is good is arranged on heat-conducting plate 60, this printed circuit board (PCB) 63 is generally made by aluminium base or double face copper, the described printed circuit board (PCB) 63 that is welded with LED64, the above can be welded with one or several great power LEDs, also can be welded with many low-power LEDs densely coveredly, these printed circuit board (PCB) 63 use screws 61 are fastened on heat-conducting plate 60, scribble heat-conducting silicone grease or heat conductive silica gel 62 between printed circuit board (PCB) 63 and heat-conducting plate 60, to reduce thermal resistance.

The input of LED driver 31 is connected with lamp holder 40, and the wire 311 of its output passes through wires hole corresponding on heat-conducting plate 60 and printed circuit board (PCB) 63, and on printed circuit board (PCB) 63, corresponding pad welds together.

20 gluings of punching press aluminium cup are connected to lampshade 10, and lampshade can be the glass lamp shade 50 that the PC lampshade 10 made with the PC plastics or glass are made, and

lampshade

10 or 50 can be transparent or surface frosted, can be also milky.

Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.

Claims

1. LED bulb lamp, the bulb socket (30) that comprises built-in drive (31), lamp holder (40) is connected with bulb socket (30), aluminium cup radiator (20), directly be fastened on bulb socket (30) with screw (32), heat-conducting plate (60) with screw (33) fastening and under be pressed on bulb socket (30), combine closely to guarantee heat-conducting plate (60) and punching press aluminium cup (20), scribble heat-conducting silicone grease or heat conductive silica gel (21) between heat-conducting plate (60) cone wall and punching press aluminium cup (20) inwall, the printed circuit board (PCB) (63) that is welded with LED (64) is fastened on heat-conducting plate (60) with screw (61), scribble heat-conducting silicone grease or heat conductive silica gel (62) between printed circuit board (PCB) (63) and heat-conducting plate (60), punching press aluminium cup (20) gluing is connected to lampshade (10), it is characterized in that: punching press aluminium cup radiator (20) is stamping with thin aluminum sheet.

2. LED bulb lamp according to claim 1, it is characterized in that: punching press aluminium cup radiator is that appearance is with the punching press aluminium cup (70) of tooth bar line.

3. LED bulb lamp according to claim 1 is characterized in that: heat-conducting plate is stamping with thin aluminum sheet, the heat-conducting plate (60) that the large opening in bottom is little.

4. LED bulb lamp according to claim 1 is characterized in that: heat-conducting plate is stamping with thin aluminum sheet, the heat-conducting plate (80) that the little opening in bottom is large.

5. LED bulb lamp according to claim 1 is characterized in that: heat-conducting plate is stamping with thin aluminum sheet, and the little opening in bottom is large, and heat-conducting plate (90) of a boss protruding upward is arranged in the middle of it.