CN204922909U - Radiator and tunnel lamp based on chimney effect - Google Patents

Abstract

The utility model discloses a radiator and tunnel lamp based on chimney effect, it is including bottom plate and a plurality of monomer fin, wherein, a plurality of the monomer fin respectively from a left side arrange to the right side in floor surfaces, each the hole groove is seted up at the top of monomer fin, the utility model discloses radiator structure based on chimney effect can play the effect that the reinforcing air flows, and then reaches the purpose of reinforcing heat transfer. The heat dispersion of chimney effect radiator obviously is superior to with the ordinary rectangle fin under volume and the quality, and is just crescent along with input thermal current density's increase heat dissipation gap between them, fin inclination is greater than ordinary rectangle fin to the influence that chimney effect produced, and nevertheless chimney effect radiator performance is superior to ordinary rectangle fin again on the contrary when great inclination. Consequently, the gravity field effectively strengthens the natural convection heat transfer with the speed field energy that the air flows in coordination.

Description

A kind of radiator based on stack effect and Tunnel Lamp

Technical field

The utility model relates to a kind of technical field of radiator, particularly relates to a kind of radiator based on stack effect and Tunnel Lamp.

Background technology

In existing high-power LED lamp uses, usually adopt the finned radiator of heat transfer free convection, and fin is vertical state.The efficiency that high-power LED lamp converts electric energy to luminous energy is approximately 20%.30%, and remaining 80%.70% is all converted into heat, in many merits, such as volume is little etc. bring convenience while cause its heat dissipation problem to become the new focus of business research.LED lamp slowly reduces at use initial stage lamp pearly-lustre flux, but sharply reduces along with lighting hours passes luminous flux.Junction temperature will be caused to raise if the excessive high temperature produced in street lamp use procedure is discharged not in time, when the time that lamp pearl reaches 70% luminous flux at relatively high temperatures far away from lower temperature under the time used, the light decay phenomenon produced under hot conditions can shorten street lamp service life.Therefore, heat dissipation problem becomes the key factor of restriction high-power LED lamp development.

Utility model content

In view of this, the utility model proposes a kind of radiator based on stack effect and Tunnel Lamp, the problem causing shorten service life to solve above-mentioned high-power LED lamp heat dissipation problem.

For achieving the above object, the technical solution of the utility model is achieved in that

Based on a radiator for stack effect, comprise base plate and some monomer fins, wherein, some described monomer fins are arranged in described backplate surface respectively from left to right, and described in each, hole slot is offered at the top of monomer fin.

The above-mentioned radiator based on stack effect, wherein, monomer fin described in each is made up of the first fin and the second fin, and described first fin is relative with bottom described second fin to tilt in 85 ° and connects in top.

The above-mentioned radiator based on stack effect, wherein, the space that described base plate, described first fin and described second fin surround forms passage.

The above-mentioned radiator based on stack effect, wherein, described in each, monomer fin shape and size are identical, the position that the hole slot on monomer fin described in each is offered and consistent size.

The above-mentioned radiator based on stack effect, wherein, described first fin and the thick 0.5mm of described second fin, high 110mm.

Also comprise a kind of Tunnel Lamp, comprise the radiator based on stack effect described in above-mentioned any one.

The utility model is owing to have employed above-mentioned technology, and the good effect of generation is:

(1) the utility model can play based on the heat spreader structures of stack effect the effect strengthening air flowing, and then reaches the object strengthening heat exchange.The heat dispersion of stack effect radiator is obviously better than the ordinary rectangular fin under same volume and quality, and along with the weak heat-dissipating of both increases of input heat flow density is apart from increasing gradually.

(2) fin angle of inclination of the present utility model is greater than ordinary rectangular fin to the impact that stack effect produces, but stack effect radiator performance is better than ordinary rectangular fin again on the contrary when larger angle of inclination.Therefore, the speed field energy that collaborative gravitational field and air flow effectively strengthens heat transfer free convection.

Accompanying drawing explanation

The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the structural representation of radiator in the radiator based on stack effect of the present utility model and Tunnel Lamp.

In accompanying drawing: 1 base plate, 2 monomer fins, 3 hole slots, 4 passages, 21 first fin, 22 second fin.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as restriction of the present utility model.

Embodiment

Shown in Fig. 1, a kind of radiator based on stack effect of the present utility model, comprises base plate 1 and some monomer fins 2, and wherein, some monomer fins 2 are arranged in base plate 1 surface respectively from left to right, and hole slot 3 is offered at the top of each monomer fin.

The utility model also has following embodiment on the basis of the above, please continue shown in Figure 1,

In further embodiment of the present utility model, each monomer fin 2 is made up of the first fin 21 and the second fin 22, and the first fin 21 is relative with bottom the second fin 22 to tilt in 85 ° and connects in top.

In further embodiment of the present utility model, the space that base plate 1, first fin 21 and the second fin 22 surround forms passage 4.

In further embodiment of the present utility model, each monomer fin 2 shape and size is identical, the position that the hole slot 3 on each monomer fin 2 is offered and consistent size.

In further embodiment of the present utility model, the first fin 21 and the thick 0.5mm of the second fin 22, high 110mm.

User can further be familiar with characteristic of the present utility model and function according to following explanation,

Stack effect refers to because hot-air is lower relative to the density of cold air, produces buoyancy lift effect under the effect of gravitational field, causes hot-air along certain slope or the phenomenon avoiding very fast flowing, thus effectively can strengthen heat exchange along with the quickening of air velocity.

The thick 0.5mm of two panels selected by radiator based on stack effect of the present utility model, the monomer Fin sheet that high 110mm and the aluminium sheet at 85 ° of angles of inclination are formed.Radiator is the radiator be made up of multiple monomer fin 2 fin, adopts aluminium extrusion shaping.On monomer fin 2, blind end outputs certain hole slot 3 to form stack effect.When LED lamp works, waste heat is passed to cold air between fin and is made it become the less hot-air of density, then upwards flow under buoyancy lift effect and discharge from hole slot 3, the negative pressuren zone that fin low side is formed simultaneously urges cool exterior air and flows into from the two ends of passage 4.This process is formed and circulates, thus guarantees that high-power LED lamp is operated within the scope of allowable temperature.

The utility model can play based on the heat spreader structures of stack effect the effect strengthening air flowing, and then reaches the object strengthening heat exchange.The heat dispersion of stack effect radiator is obviously better than the ordinary rectangular fin under same volume and quality, and along with the weak heat-dissipating of both increases of input heat flow density is apart from increasing gradually.Fin angle of inclination is greater than ordinary rectangular fin to the impact that stack effect produces simultaneously, but stack effect radiator performance is better than ordinary rectangular fin again on the contrary when larger angle of inclination.Therefore, the speed field energy that collaborative gravitational field and air flow effectively strengthens heat transfer free convection.

In sum, by comparing for carrying out experiment with the vertical rectangular fins radiator of a identical height, width and spacing with the finned radiator of 45 °, 45 ° of finned radiators have dropped 5%-20% than the rate of heat exchange of vertical rectangular heat dissipation device.Namely fin is better than vertical rectangular heat dissipation device radiating effect with the radiator of certain angle.

Also comprise a kind of Tunnel Lamp in the present embodiment, comprise the radiator based on stack effect in the above described in any one, detailed description of the invention is described above, is not repeated herein.

The foregoing is only the utility model preferred embodiment; not thereby embodiment of the present utility model and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilization the utility model descriptions and diagramatic content and apparent change obtain in protection domain of the present utility model.

Claims (6)

1. based on a radiator for stack effect, comprise base plate and some monomer fins, it is characterized in that, some described monomer fins are arranged in described backplate surface respectively from left to right, and described in each, hole slot is offered at the top of monomer fin.

2. the radiator based on stack effect according to claim 1, it is characterized in that, monomer fin described in each is made up of the first fin and the second fin, and described first fin is relative with bottom described second fin to tilt in 85 ° and connects in top.

3. the radiator based on stack effect according to claim 2, is characterized in that, the space that described base plate, described first fin and described second fin surround forms passage.

4. the radiator based on stack effect according to claim 1, is characterized in that, described in each, monomer fin shape and size are identical, the position that the hole slot on monomer fin described in each is offered and consistent size.

5. the radiator based on stack effect according to claim 2, is characterized in that, described first fin and the thick 0.5mm of described second fin, high 110mm.

6. a Tunnel Lamp, comprises as the radiator based on stack effect in claim 1 to 5 as described in any one.