CN202361134U

CN202361134U - Led lamp

Info

Publication number: CN202361134U
Application number: CN2011204761770U
Authority: CN
Inventors: 沈锦祥; 沈晖; 陈方
Original assignee: Sengled Optoelectronics Co Ltd
Current assignee: Sengled Optoelectronics Co Ltd
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2012-08-01
Anticipated expiration: 2021-11-25

Abstract

The utility model discloses an LED lamp, which includes a heat dissipation lamp cup and a drive power supply casing, wherein the inside of the heat dissipation lamp cup has a hollow structure, the heat dissipation lamp cup and the drive power supply casing are connected together in a sleeving manner, a clearance is reserved between the drive power supply casing and the inner wall of the heat dissipation lamp cup, and both the upper part and the lower part of the clearance are communicated with outside air. According to the utility model, the clearance is reserved between the drive power supply casing and the inner wall of the heat dissipation lamp cup, and holes for keeping air ventilation between the clearance and the outside are reserved in both the upper part and the lower part of the drive power supply casing, so that an air flowing layer is formed on the part of clearance, air can enter to take away heat generated by a drive power supply and lower the temperature of the working environment of the power supply, and the service life is ensured.

Description

The LED lamp

Technical field

The utility model relates to the LED lighting technical field, particularly a kind of LED lamp.

Background technology

Whether the work of LED lamp is stable; The quality quality, most important with lamp body heat radiation itself, past people all is conceived to the heat radiation of led light source; Shape through improving the heat radiation Lamp cup, structure, material etc. to be optimizing its heat dispersion, but inconsiderate to the heat radiation of LED driving power usually.

For example; The high-power LED illuminating lamp of prior art generally adopts the heat radiation Lamp cup of hollow, is provided with the pedestal of fixed L ED luminescence component in the Lamp cup, and will the dispel the heat cavity of Lamp cup of pedestal is divided into LED luminescence component container cavity and driving power container cavity; The driving power housing is enclosed within the driving power container cavity; The upper and lower side of driving power housing is closed state, and the inwall of driving power housing is close to the inwall of driving power container cavity, because heat radiation Lamp cup itself has carried the heat of led light source; So drive circuit board is in the hot environment in the heat radiation Lamp cup; Heat is difficult to effectively distribute, and can influence the operate as normal of the electronic devices and components of driving power in the course of time, thereby influences the service life of LED illuminating lamp integral body.

The utility model content

The utility model provides a kind of LED lamp that driving power is dispelled the heat to the deficiency that exists in the above-mentioned prior art, thereby alleviates the temperature effect of heat radiation Lamp cup to power supply, reduces the environment temperature of power supply, has prolonged the service life of power supply.

The technical scheme of the utility model is achieved in that

A kind of LED lamp; Comprise heat radiation Lamp cup, driving power housing; Described heat radiation Lamp cup inside is hollow structure; Heat radiation Lamp cup and driving power housing connect together, and leave the space between described driving power housing and the heat radiation Lamp cup inwall, and the top in said space, bottom all keep being communicated with outside air.

As preferably, on driving power housing periphery, be fixed with the Lamp cup bottom of dispelling the heat offsets and accept ring, be circumferentially with a plurality of extraneous holes that maintain the circulation of air with bottom, described space that make accepting the ring upper edge.Accept ring and not only can hold the heat radiation Lamp cup, offered a plurality of holes on the ring accepting, bottom, described space can be passed to through hole and ambient air stream dispel the heat.

As preferably; Be provided with pedestal at heat radiation Lamp cup internal upper part; On pedestal, be provided with the LED luminescence component; Be circumferentially with a plurality of extraneous through holes that are connected with top, said space that make on the edge edge of pedestal, leave the gap that makes through hole and outside air maintenance circulation between the periphery of LED luminescence component and the heat radiation Lamp cup inwall.Top, described space passes to through gap between through hole, LED luminescence component and Lamp cup inwall and ambient air stream dispels the heat; Thus; All circulating with outside air in the top and the bottom in space, outside driving power, has formed air fluidized bed straight up and down, not only avoided the influence of heat radiation Lamp cup to driving power; Also driving power is carried out effective heat loss through convection, make the power environment temperature rise descend about 5%.

As preferably, the inwall upper edge of the heat radiation Lamp cup above pedestal circumferentially convexes with a plurality ofly carries out spacing spacing muscle to the LED luminescence component.The setting of spacing muscle not only can make things convenient for the installation of LED luminescence component, also the LED luminescence component is carried out spacingly, it is not caused the through hole of susceptor edges block, and has guaranteed circulation of air.

As preferably, the inwall upper edge of the heat radiation Lamp cup below pedestal circumferentially convexes with carries out spacing convex tendon to the driving power housing, or on the driving power housing sidewall, is provided with a plurality of convex tendons.The setting of convex tendon not only can be carried out spacing to the driving power housing, makes things convenient for its installation, also makes and leaves the space between housing and Lamp cup inwall, forms air flow channel.

Improve as another kind, the sidewall upper edge below the heat radiation Lamp cup circumferentially offers a plurality of described space and extraneous holes that maintain the circulation of air of making, and the sidewall upper edge of heat radiation Lamp cup top circumferentially offers a plurality of through holes that are connected with the space.Top and the bottom, space and outside air keep the Kong Jun of circulation to be opened on the thermal louver cup sidewall, and air gets into the space of flowing through from through hole heat is taken out of to lamp body from other through hole.

As preferably, described heat radiation Lamp cup comprises the Lamp cup body, circumferentially is distributed with a plurality of radiating fins in the periphery upper edge of Lamp cup body, is wrapped with outer cover at radiating fin, all leaves a circle opening between the two ends up and down of outer cover and Lamp cup body.The general simple stripe shape radiating fin that adopts of traditional die casting or extruded material heat radiation Lamp cup, such structure, it is long-pending that the heat radiation effective area is not equal to actual external surface, and have only actual external surface long-pending about 70%.And the utility model under the regulatory specifications volume except the situation that keeps radiating fin under, one deck outer cover has been wrapped up in the outside more; Both increased the effective radiating area of radiator, and also utilized the heat radiation Lamp cup more fully, strengthened the convection current of air by the through hole between outer cover inwall and the fin formed " chimney " effect.Be equivalent to strengthen respectively heat loss through radiation and Natural Heat Convection.Better effect is played in heat radiation for LED.Better life-span of LED and light efficiency have been guaranteed.

For easy to process, as preferably, described outer cover is to be connected to form by upper outlet body and lower cover two parts.

For easy to assembly, as preferably, form at least two snapping portions on the radiating fin of described upper outlet body below, correspondence forms at least two buckling parts on the inwall of described lower cover, and the buckling parts of described lower cover links to each other with snapping portion.

As preferably, described upper outlet body is an aluminium alloy one die cast with the heat radiation Lamp cup, and described lower cover is that plastic material is processed.

Adopted the design philosophy and the beneficial effect of the utility model of technique scheme to be:

The utility model is with leaving the space between driving power housing and Lamp cup inwall; The upper and lower part of driving power housing is all left and is made space and the extraneous hole that maintains the circulation of air; Thereby make this part space form the air fluidized bed; Air is got into to take away the heat that driving power produces, reduced the environment temperature of power work, guaranteed its service life.

Needing ben is that the setting of above-mentioned air fluidized bed not only can be dispelled the heat to driving power, can also the heat of the inside portion of heat radiation Lamp cup diffusion be dispelled the heat.

As at radiating fin coated outside one deck outer cover, the through hole that forms between outer cover inwall and the fin can form air flow channel equally, and the convection current of having strengthened air is dispelled the heat with the heat that led light source is produced.Inside and outside two air flow channels of Lamp cup act synergistically, and have improved the radiating effect of LED lamp greatly, have played beyond thought effect.

Description of drawings

Fig. 1 is the explosive view of LED lamp among the utility model embodiment;

Fig. 2 is the explosive view of LED lamp other direction among the utility model embodiment;

Fig. 3 is the perspective view of LED lamp among the utility model embodiment;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is the A portion enlarged drawing of Fig. 1;

Fig. 6 is the B portion enlarged drawing of Fig. 1;

Fig. 7 is the A portion enlarged drawing of Fig. 4;

Fig. 8 is the perspective view of LED lamp other direction among the embodiment;

Fig. 9 is the structural representation of LED lamp among the embodiment;

Figure 10 looks up the structural representation of direction for Fig. 9;

Figure 11 overlooks the structural representation of direction for Fig. 9;

Figure 12 is the radiating effect sketch map of LED lamp among the embodiment.

The specific embodiment

The specific embodiment of the utility model is following:

Embodiment 1: a kind of LED lamp of present embodiment; Shown in Fig. 1～12; Comprise heat radiation Lamp cup 1, driving power housing 2, described heat radiation Lamp cup 1 inside is hollow structure, is provided with pedestal 3 in the heat radiation Lamp cup 1; Pedestal 3 Lamp cup 1 that will dispel the heat is divided into LED luminescence component container cavity 4 and driving power container cavity 5; Circumferentially convex with in the inwall upper edge of driving power container cavity 5 driving power housing 2 is carried out spacing convex tendon 6, driving power housing 2 is plugged in the driving power container cavity 5, and the external diameter of driving power housing 2 is less than the internal diameter of driving power container cavity 5; As shown in Figure 4, because of making, the existence of convex tendon 6 leaves a plurality of spaces 7 between driving power housing 2 and heat radiation Lamp cup inwall.

Like Fig. 1, Fig. 2, Fig. 4, Fig. 8, shown in Figure 10, on driving power housing 2 peripheries, be fixed with the Lamp cup bottom of dispelling the heat interlocks and accept ring 8, be circumferentially with a plurality of extraneous holes 9 that maintain the circulation of air with 7 bottoms, described space that make accepting ring 8 upper edges.

Like Fig. 1, shown in Figure 4; Be circumferentially with a plurality of extraneous through holes 10 that are connected with 7 tops, said space that make on the edge edge of pedestal 3; Circumferentially convex with in the inwall upper edge of LED luminescence component container cavity 4 and a plurality of the LED luminescence component to be carried out spacing spacing muscle 11; Like Fig. 1, Fig. 3, shown in Figure 4, the existence of spacing muscle 11 makes to leave between periphery and the Lamp cup inwall of LED luminescence component and makes through hole 10 and outside air keep the gap 12 of circulation.Described LED luminescence component comprises substrate 19, plastic tube 21 and lens 22, on substrate 19, is fixed with a plurality of led light sources 20, and plastic tube 21 is fixed on the substrate 19, and lens 22 are stuck in the plastic tube 21.

Like Fig. 1～shown in Figure 12; Described heat radiation Lamp cup 1 comprises Lamp cup body 13; Circumferentially be distributed with a plurality of radiating fins 14 in the periphery upper edge of Lamp cup body 13, be wrapped with outer cover 15 at radiating

fin

14,13 of the two ends up and down of outer cover 15 and Lamp cup bodies all leave a circle opening 16.Described outer cover 15 is to be connected to form by upper outlet body 17 and lower cover 18 two parts, and described upper outlet body 17 is an aluminium alloy one die cast with the heat radiation Lamp cup, and described lower cover 18 is processed for plastic material; Like Fig. 5～shown in Figure 7; Form at least two snapping portions 23 on the radiating fin of described upper outlet body 17 belows; Correspondence forms at least two buckling parts 24 on the inwall of described lower cover 18; The snapping portion of the buckling parts of described lower cover and upper outlet body 17 snaps together, and it is an integral body that upper and lower cover body is connected.The combination of upper and lower cover body makes the through hole length that forms between outer cover inwall and the fin can greatly satisfy the effect of cross-ventilation heat radiation.

Shown in figure 12; The heat radiation process of the utility model LED lamp is such, and for interior heat radiation air flow channel, cold air is entered in the space 7 by gap 12, through hole 10; And move upward, take away the heat of driving power, led light source generation via accepting the hole 9 that encircles on 8; For outer heat radiation air flow channel, cold air is entered in the through hole that forms between outer cover inwall and the fin by lamp body one end opening 16, moves upward to take away the heat that the heat radiation Lamp cup produces via the opening 16 of the lamp body other end.Inside and outside two-layer heat radiation air flow channel synergy, strengthen heat loss through radiation and free convection respectively, reach perfect heat radiation purpose.

The utility model is fit to the structural design of various LED light fixtures to be used, and comprises the light fixture of the LED of all built-in power designs of PAR lamp system type (PAR30, PAR38 etc.) and bulb lamp series (A60, A55 etc.).

Embodiment 2: the difference of present embodiment and embodiment 1 is: the space is arranged on the sidewall of heat radiation Lamp cup with the extraneous hole that maintains the circulation of air; Promptly the sidewall upper edge below the heat radiation Lamp cup circumferentially offers a plurality of described space and extraneous holes that maintain the circulation of air of making, and the sidewall upper edge of heat radiation Lamp cup top circumferentially offers a plurality of through holes that are connected with the space.

Claims

1. LED lamp; Comprise heat radiation Lamp cup, driving power housing; Described heat radiation Lamp cup inside is hollow structure; Heat radiation Lamp cup and driving power housing connect together, and it is characterized in that: leave the space between described driving power housing and the heat radiation Lamp cup inwall, the top in said space, bottom all keep being communicated with outside air.

2. LED lamp according to claim 1 is characterized in that: on driving power housing periphery, be fixed with the Lamp cup bottom of dispelling the heat offsets and accept ring, be circumferentially with a plurality of extraneous holes that maintain the circulation of air with bottom, described space that make accepting the ring upper edge.

3. LED lamp according to claim 1; It is characterized in that: be provided with pedestal at heat radiation Lamp cup internal upper part; On pedestal, be provided with the LED luminescence component; Be circumferentially with a plurality of extraneous through holes that are connected with top, said space that make on the edge edge of pedestal, leave the gap that makes through hole and outside air maintenance circulation between the periphery of LED luminescence component and the heat radiation Lamp cup inwall.

4. LED lamp according to claim 3 is characterized in that: the inwall upper edge of the heat radiation Lamp cup above pedestal circumferentially convexes with a plurality ofly carries out spacing spacing muscle to the LED luminescence component.

5. LED lamp according to claim 3 is characterized in that: the inwall upper edge of the heat radiation Lamp cup below pedestal circumferentially convexes with carries out spacing convex tendon to the driving power housing, or on the driving power housing sidewall, is provided with a plurality of convex tendons.

6. LED lamp according to claim 1; It is characterized in that: the sidewall upper edge below the heat radiation Lamp cup circumferentially offers a plurality of described space and extraneous holes that maintain the circulation of air of making, and the sidewall upper edge of heat radiation Lamp cup top circumferentially offers a plurality of through holes that are connected with the space.

7. LED lamp according to claim 1; It is characterized in that: described heat radiation Lamp cup comprises the Lamp cup body; Periphery upper edge at the Lamp cup body circumferentially is distributed with a plurality of radiating fins, is wrapped with outer cover at radiating fin, all leaves a circle opening between the two ends up and down of outer cover and Lamp cup body.

8. LED lamp according to claim 7 is characterized in that: described outer cover is to be connected to form by upper outlet body and lower cover two parts.

9. LED lamp according to claim 8; It is characterized in that: form at least two snapping portions on the radiating fin of described upper outlet body below; Correspondence forms at least two buckling parts on the inwall of described lower cover, and the buckling parts of described lower cover links to each other with snapping portion.

10. according to Claim 8 or 9 described LED lamps, it is characterized in that: described upper outlet body is an aluminium alloy one die cast with the heat radiation Lamp cup, and described lower cover is that plastic material is processed.