CN202382067U

CN202382067U - LED (Light-Emitting Diode) lamp with self-quick heat-radiation function

Info

Publication number: CN202382067U
Application number: CN2011205605040U
Authority: CN
Inventors: 张翔; 张丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-08-15
Anticipated expiration: 2021-12-29

Abstract

The utility model belongs to the technical field of an LED (Light-Emitting Diode) lamp and discloses an LED lamp with a self-quick heat-radiation function. According to the main technical characteristics, the LED lamp comprises an LED chip and a reflection cover; the LED chip is fixed inside the upper bottom face of the reflection cover; at least one outer heat radiation cover is fixed on the outer side of the reflection cover; the shape of the outer heat radiation cover is similar to the shape of the reflection cover; a certain distance is formed between the opening end of the outer heat radiation cover and the opening end of the reflection cover; convection holes are arranged at the upper end of the outer heat radiation cover; and air circulation is formed between the outer heat radiation cover and the reflection cover. The LED lamp has the advantages of good heat radiation effect and light entire weight. Furthermore, the cost is greatly reduced, and the LED lamp is good for being popularized.

Description

From fast heat radiating LED lamp

Technical field

The utility model belongs to LED lamp technical field, relates to concretely from fast heat radiating LED lamp.

Background technology

For energy conservation and environment protection, reduce energy resource consumption, mainly promote the LED lamp of energy-conserving and environment-protective at lighting fields such as family, street lamps.But the reason that present LED lamp is difficult to promote has the following aspects: one of which, because heat dissipation technology is poor, cause the temperature of LED lamp high, and light decay is serious in the use, and service life is low, thus use cost improves greatly; Its two, in order to improve radiating effect, adopt the aluminium sheet heat radiation of good heat dissipation effect, though reach radiating effect reluctantly, many with aluminium, production cost increases greatly, and relatively heavier.

The utility model content

The technical problem that the utility model solves just provides that a kind of production cost is low, good heat dissipation effect, long service life, lightweight from fast heat radiating LED lamp.

For solving the problems of the technologies described above; The technical scheme that the utility model proposes is: comprise led chip and reflection shield; Described led chip is fixed on the upper bottom surface inside of described reflection shield, is fixed with heat dissipating housing outside at least one in the outside of said reflection shield, and the shape of said outer heat dissipating housing is similar with the shape of described reflection shield; The openend of said outer heat dissipating housing and the openend of described reflection shield are at a distance of certain distance, and the upper end of heat dissipating housing is provided with discharge orifice outside said.

Its additional technical feature is:

Described led chip is encapsulated in the upper bottom surface inside of described reflection shield;

Described led chip is encapsulated on the fixed support, and said fixed support is fixed on the upper bottom surface inside of described reflection shield;

Said outer heat dissipating housing is one;

Said outer heat dissipating housing is two or more, keep at a certain distance away between the openend of adjacent outer heat dissipating housing, near the diameter of the outer heat dissipating housing in the outside greater than outer heat dissipating housing near the inboard.

The utility model provide from fast heat radiating LED lamp, comparing with prior art has the following advantages: one of which owing to comprise led chip and reflection shield; Described led chip is fixed on the upper bottom surface inside of described reflection shield, is fixed with heat dissipating housing outside at least one in the outside of said reflection shield, and the shape of said outer heat dissipating housing is similar with the shape of described reflection shield; The openend of said outer heat dissipating housing and the openend of described reflection shield are at a distance of certain distance, and the upper end of heat dissipating housing is provided with discharge orifice outside said, and the upper bottom surface of outer heat dissipating housing and said reflection shield is perhaps smeared heat-conducting cream through welding and fixed; The heat that led chip produces is directly passed to outer heat dissipating housing through reflection shield, and overall weight alleviates, and cost reduces greatly; Help the popularization of LED lamp, in the heat dissipating housing heat radiation, at first improve near the temperature on the outer heat dissipating housing; Hot-air between outer heat dissipating housing and the reflection shield lightens, and hot-air is along running out of discharge orifice on the outer heat dissipating housing, and the space the first half between heat dissipating housing and the reflection shield forms negative pressure outside; Cold air is up in the lower end of outer heat dissipating housing and the slit between the reflection shield; In the up process of cold air, gradually the outer heat dissipating housing of heat is lowered the temperature, and cold air heating gradually; Thereby go out from the convection current orifice flow, form cross-ventilation; Its two because that described led chip is encapsulated in the upper bottom surface of described reflection shield is inner, thermal conduction effect and radiating effect improve greatly, have reduced the temperature of led chip, have prolonged its service life; Its three because described led chip is encapsulated on the fixed support, it is inner that said fixed support is fixed on the upper bottom surface of described reflection shield, production efficiency improves greatly; Its four since said outer heat dissipating housing be one, two or more, keep at a certain distance away between the openend of adjacent outer heat dissipating housing, greater than the outer heat dissipating housing near the inboard, radiating effect is better like this near the diameter of the outer heat dissipating housing in the outside.

Description of drawings

Fig. 1 is the structural representation of the utility model from fast heat radiating LED lamp;

Fig. 2 has support bracket fastened structural representation from fast heat radiating LED lamp.

The specific embodiment

Below in conjunction with accompanying drawing the structure from fast heat radiating LED lamp that the utility model proposed is further specified.

As shown in Figure 1, be structural representation from fast heat radiating LED lamp.Its structure comprises led chip 1 and reflection shield 2, and led chip 1 is fixed on the inside of the upper bottom surface 3 of reflection shield 2, is fixed with heat dissipating housing 4 outside at least one in the outside of reflection shield 2; The shape of outer heat dissipating housing 4 is similar with the shape of reflection shield 2, and the openend 5 of outer heat dissipating housing 4 and the openend 6 of reflection shield 3 are at a distance of certain distance, and the upper end of heat dissipating housing 4 is provided with discharge orifice 7 outside; Scribble heat-conducting cream 9 between the upper bottom surface 8 of outer heat dissipating housing 4 and the upper bottom surface 3 of reflection shield 2, certainly, can also fix through modes such as welding; The heat that led chip 1 produces is directly passed to outer heat dissipating housing 4 through reflection shield 2, when heat dissipating housing 4 dispels the heat, at first improves near the temperature of outer heat dissipating housing 4 upper ends; Hot-air between outer heat dissipating housing 4 and the reflection shield 2 lightens, and hot-air is along running out of discharge orifice 7 on the outer heat dissipating housing, and the space the first half between heat dissipating housing 4 and the reflection shield 2 forms negative pressure outside; Cold air is up in the lower end of outer heat dissipating housing and the slit between the reflection shield, in the up process of cold air, gradually to the outer heat dissipating housing cooling of heat; And cold air heating gradually; Thereby, form cross-ventilation, and overall weight alleviates greatly from discharge orifice 7 is flowed out; Cost alleviates greatly, helps the popularization of LED lamp.

Led chip 1 can directly be encapsulated in the inside of the upper bottom surface 3 of reflection shield 2, and like this, thermal conduction effect and radiating effect improve greatly, have reduced the temperature of led chip, have prolonged its service life.

As shown in Figure 2, led chip 1 can also be encapsulated on the fixed support 10, and fixed support 10 is fixed on the inside of the upper bottom surface 3 of reflection shield 2, and production efficiency improves greatly.

Outer heat dissipating housing 4 can for one, two or more; Keep at a certain distance away between the openend 5 of adjacent outer heat dissipating housing 4; Greater than the outer heat dissipating housing 4 near the inboard, the same convection channel that forms between the heat dissipating housing 4 outside adjacent is when outer heat dissipating housing 4 is two or more near the diameter of the outer heat dissipating housing 4 in the outside; Outside adjacent, also scribble heat-conducting cream 9 between the upper bottom surface 8 of heat dissipating housing 4, radiating effect is better like this.

Claims

1. from fast heat radiating LED lamp; Comprise led chip and reflection shield; It is characterized in that: described led chip is fixed on the upper bottom surface inside of described reflection shield, is fixed with heat dissipating housing outside at least one in the outside of said reflection shield, and the shape of said outer heat dissipating housing is similar with the shape of described reflection shield; The openend of said outer heat dissipating housing and the openend of described reflection shield are at a distance of certain distance, and the upper end of heat dissipating housing is provided with discharge orifice outside said.

2. according to claim 1 from fast heat radiating LED lamp, it is characterized in that: described led chip is encapsulated in the upper bottom surface inside of described reflection shield.

3. according to claim 1 from fast heat radiating LED lamp, it is characterized in that: described led chip is encapsulated on the fixed support, and said fixed support is fixed on the upper bottom surface inside of described reflection shield.

4. according to claim 1 from fast heat radiating LED lamp, it is characterized in that: said outer heat dissipating housing is one.

5. according to claim 1 from fast heat radiating LED lamp; It is characterized in that: said outer heat dissipating housing is two or more; Keep at a certain distance away between the openend of adjacent outer heat dissipating housing, near the diameter of the outer heat dissipating housing in the outside greater than outer heat dissipating housing near the inboard.