CN202484642U

CN202484642U - Led lamp

Info

Publication number: CN202484642U
Application number: CN2011205256355U
Authority: CN
Inventors: 王建国; 徐长征
Original assignee: NINGBO YINZHOU WADI ELECTRONICS CO Ltd
Current assignee: NINGBO YINZHOU WADI ELECTRONICS CO Ltd
Priority date: 2011-12-15
Filing date: 2011-12-15
Publication date: 2012-10-10
Anticipated expiration: 2021-12-15

Abstract

The utility model relates to an LED lamp, comprising an LED lamp body (2), a driving power supply (8), a housing (4) and a base (6). The driving power supply (8) is electrically connected with the LED lamp body (2) and an external power supply, the base (6) is disposed at an lower end of the housing (4) and is connected with the housing (4), and the LED lamp is characterized in that a heat dissipation structure is arranged on an outside surface of the housing (4), an inside of the housing (4) is a through hole that penetrates an upper end face and a lower end face of the housing (4), the LED lamp body (2) and a heat conducting bottom plate (3) of graphite material are disposed in the through hole, the LED lamp body (2) is disposed on an upper end face of the heat conducting bottom plate, and the heat conducting bottom plate (3) is adhered to an inner wall of the through hole. The LED lamp has the advantages of low heat dissipation cost, little expansion after being heated, a fast heat dissipation speed, and good heat dissipation effects.

Description

The LED lamp

Technical field

The utility model relates to lighting technical field, specifically is a kind of LED lamp.

Background technology

LED (Light Emitting Diode; Light emitting diode) is a kind of solid-state semiconductor device that can electric energy be converted into visible light; LED occur early stage, LED is through being usually used in the indicator lamp of various device, but along with the development of LED technology; LED begins to be applied to lighting field, the LED lamp therefore occurred; Because the LED light fixture has outstanding features such as long, the high and low power consumption of light efficiency of life-span, energy-saving and environmental protection; Therefore just be applied to growing field; But LED lamp heat dissipation problem is a factor that limits its faster development always, if because LED lamp radiating effect is not good, too much heat will cause the temperature of LED lamp to raise; The rising of temperature can be quickened the light intensity attenuation of LED lamp and the reduction in life-span; And present stage for the LED lamp is dispelled the heat, mostly adopt the conductive sole plate of metal material to dispel the heat, what adopt for a kind of patent with high-powered LED lamp of radiating module structure of CN101334153B like Granted publication number is that the copper heat conduction core of electroplate is carried out heat conduction; Adopt the heat radiation of metal heat-conducting body; Not only the cost of heat radiation height because volume becomes big, causes that lamp body shell cracking and ubiquity radiating rate are rapid inadequately, the not good shortcoming of radiating effect behind the metal heat-conducting body expanded by heating.

Summary of the invention

The utility model technical problem to be solved is: provide that a kind of cost that dispels the heat is low, the back that is heated is expanded little and radiating rate fast, the LED lamp of good heat dissipation effect.

The technical scheme that the utility model is taked is: a kind of LED lamp is provided, comprises LED lamp body, driving power, shell and base; Described driving power and LED lamp body are electrically connected, and described driving power and external power source are electrically connected, and described base is located at the lower end of shell and is connected with shell; The outer surface of said shell is provided with radiator structure; The inside of said shell is the through hole that runs through shell upper surface and lower surface; Be provided with the conductive sole plate of LED lamp body and graphite material in the described through hole; Described LED lamp body places the upper surface of said conductive sole plate, and described conductive sole plate is pasted with the inwall of through hole mutually.

After adopting above structure, the utility model compared with prior art has the following advantages: because the outer surface of said shell is provided with radiator structure; The inside of said shell is the through hole that runs through shell upper surface and lower surface, is provided with the conductive sole plate of LED lamp body and graphite material in the described through hole, and described LED lamp body places the upper surface of conductive sole plate; Described conductive sole plate is pasted with the inwall of through hole mutually, and when LED lamp electrified light emitting, the heat of LED lamp body can pass to through the conductive sole plate of graphite material on the shell; Radiator structure through shell dispels the heat in air at last, because the graphite material thermal conductivity factor is big, thermal conductivity surpasses metal materials such as silver, copper, aluminium; And the back that is heated is expanded little, so heat-transfer rate is fast, does not influence shell after the expansion; Again because the graphite material source is wide; Price is low, comes the substituted metal material by it, has reduced cost.

As improvement, described driving power is provided with lead, and an end of said lead is electrically connected with the LED lamp body through the through hole of being located on the conductive sole plate, and the other end of said lead is connected with driving power, and this connected mode has been dwindled the volume of LED lamp between the two.

As further improvement, the outer surface of said shell is provided with the outer surface that radiator structure is meant shell and is provided with a plurality of at least heat radiation fins along the shell radial protrusion, adopts this kind radiator structure, and is easily manufactured, good heat dissipation.

As further improvement; Described LED lamp also is provided with felt pad; Described felt pad is located between the through-hole wall and shell lower surface and base upper surface of lower surface, conductive sole plate bottom of conductive sole plate, adopts felt pad, can avoid when LED lamp moment generation high pressure; The energising of driving power and shell causes the short circuit of driving power or burns.

As further improvement; The top of said LED lamp body is provided with diffuser; The upper end of said shell is provided with along the shell footpath inwardly extends the boss that is used for fixing diffuser, and the setting of diffuser not only can make the light of LED lamp better disperse or polymerization, also can reach the effect of protection LED lamp body.

As further improving, the lower surface of said shell is provided with a groove, and said base upper surface is provided with said groove and is equipped with the convexity that limit shell rotates relative to base mutually, and this structure can avoid shell to rotate relative to base.

As further improving, described base is connected with the shell snapping, adopts snapping to connect, and easy installation and removal also helps the replacing of LED lamp body.

Description of drawings

Accompanying drawing 1 is the structure cutaway view of the utility model LED lamp.

Accompanying drawing 2 is another structure cutaway view of the utility model LED lamp.

Among the figure, 1, diffuser, 2, the LED lamp body, 3, conductive sole plate, 4, shell, 4.1, radiating fin, 4.2, boss, 4.3, groove, 4.4, step, 5, felt pad, 6, base, 6.1, convexity, 6.2, annular groove, 7, binding post, 8, driving power.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.

Shown in accompanying drawing 1, accompanying drawing 2, a kind of LED lamp that is provided comprises LED lamp body 2, driving power 8, shell 4 and base 6; Described driving power 8 is electrically connected with LED lamp body 2, and described driving power 8 is electrically connected with external power source, and described base 6 is located at the lower end of shell 4 and is connected with shell 4; The outer surface of said shell 4 is provided with radiator structure; The inside of said shell 4 is the through hole that runs through shell upper surface and lower surface; Be provided with LED lamp body 2 and conductive sole plate 3 in the described through hole; Described LED lamp body 2 is arranged in order in through hole with conductive sole plate 3 from top to down, and said LED lamp body 2 places the upper surface of conductive sole plate 3, and described conductive sole plate 3 is pasted with the inwall of through hole mutually.

The utility model is in the practical implementation process; Described driving power 8 is provided with lead, and an end of said lead is electrically connected with LED lamp body 2 through the through hole of being located on the conductive sole plate 3, and the other end of said lead is connected with driving power 8; Specifically be that described lead is two; One end of said lead is electrically connected with the negative or positive electrode of driving power 8, and the other end of said lead passes the through hole of being located on the conductive sole plate 3 and is electrically connected with LED lamp body 2 respectively, and described driving power 8 can change according to the voltage value of customer requirement; Such as 110 volts, 220 volts etc., described driving power 8 is electrically connected with external power source through the binding post 7 that is located on the base 6.

In this specific embodiment, said shell 4 is provided with the cylinder of through hole for the middle part, and the outer surface of said shell 4 is provided with the outer surface that radiator structure is meant shell 4 and is provided with a plurality of heat radiation fins 4.1 that extend radially outwardly along shell 4.

Described LED lamp also is provided with felt pad 5; Described felt pad 5 is located between the through-hole wall and shell 4 lower surfaces and base 6 upper surfaces of lower surface, conductive sole plate 3 bottoms of conductive sole plate 3; Felt pad 5 is formed in one; Felt pad 5 is corresponding is provided with two holes that communicate with conductive sole plate 3; Make things convenient for being connected of lead and LED lamp body 2, this felt pad 5 can be avoided between binding post 7 and the shell 4 of driving power 8 and conductive sole plate 3 and base 6 because conduction makes driving power 8 short circuits even burns.

The top of said LED lamp body 2 is provided with diffuser 1; The upper end of said shell 4 is provided with extends the boss 4.2 be used for fixing diffuser along shell 4 centers; Described diffuser 1 is optically focused or astigmatism as required, and described diffuser 1 is specially lens, and this boss 4.2 can prevent that diffuser 1 from dropping.

The lower surface of said shell 4 is provided with a groove 4.3; Just on the lower surface of the heat radiation fin 4.1 of shell 4 outer surfaces below, be provided with a groove 4.3; The upper surface of said base 6 is provided with said groove 4.3 and is equipped with limit shell 4 mutually relative to the convexity 6.1 that base 6 rotates, and this structure is set can avoids shell 4 to rotate relative to base 6.

Described base 6 is connected with shell 4 snappings; Specifically be meant; Shell 4 outer surfaces heat radiation fin 4.1 lateral surfaces of below are provided with a step 4.4, and the outer of said base 6 is provided with its opening annular groove 6.2 inwardly, and the last inwall of described annular groove 6.2 snaps onto on the said step 4.4; The thickness of described step 4.4 adds that the thickness of felt pad 5 is a bit larger tham the width of annular groove 6.2, the zoarium and described annular groove 6.2 tight fits of promptly said step 4.4 and felt pad 5.

Claims

1. a LED lamp comprises LED lamp body (2), driving power (8), shell (4) and base (6); Described driving power (8) and LED lamp body (2) are electrically connected; Described driving power (8) and external power source are electrically connected; Described base (6) is located at the lower end of shell (4) and is connected with shell (4); It is characterized in that: the outer surface of said shell (4) is provided with radiator structure; The inside of said shell (4) is provided with the conductive sole plate (3) of LED lamp body (2) and graphite material for running through the through hole of shell (4) upper surface and lower surface in the described through hole, described LED lamp body (2) places the upper surface of said conductive sole plate (3); Described conductive sole plate (3) is pasted with the inwall of through hole mutually.

2. LED lamp according to claim 1; It is characterized in that: described driving power (8) is provided with lead; One end of said lead is electrically connected with LED lamp body (2) through the through hole of being located on the conductive sole plate (3), and the other end of said lead is connected with driving power (8).

3. LED lamp according to claim 1 is characterized in that: the outer surface of said shell (4) is provided with the outer surface that radiator structure is meant shell (4) and is provided with a plurality of heat radiation fins (4.1) along shell (4) radial protrusion.

4. LED lamp according to claim 1; It is characterized in that: described LED lamp also is provided with felt pad (5), and described felt pad (5) is located between the through-hole wall and shell (4) lower surface and base (6) upper surface of lower surface, conductive sole plate (3) bottom of conductive sole plate (3).

5. LED lamp according to claim 1 is characterized in that: the top of said LED lamp body (2) is provided with diffuser (1), and the upper end of said shell (4) is provided with along shell (4) footpath inwardly extends the boss (4.2) that is used for fixing diffuser (1).

6. LED lamp according to claim 1 is characterized in that: the lower surface of said shell (4) is provided with a groove, and said base (6) upper surface is provided with said groove and is equipped with the convexity (6.1) that limit shell (4) rotates relative to base (6) mutually.

7. LED lamp according to claim 1 is characterized in that: described base (6) is connected with shell (4) snapping.