CN218544363U

CN218544363U - LED down lamp heat radiation structure

Info

Publication number: CN218544363U
Application number: CN202222890027.5U
Authority: CN
Inventors: 范德华
Original assignee: Shanghai Weibao Electronics Co ltd; Yueqing Songqi Electric Technology Co ltd
Current assignee: Shanghai Weibao Electronics Co ltd; Yueqing Songqi Electric Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-02-28
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a LED down lamp heat radiation structure, its technical scheme main points include the down lamp body, the down lamp body is including preceding terminal surface, be provided with the glass cover on the preceding terminal surface, this internal circuit board that is provided with of down lamp, one side of circuit board is provided with LED light emitting component, LED light emitting component is just to the glass cover of preceding terminal surface, the opposite side of circuit board is provided with heat-conducting component, heat-conducting component hugs closely the setting with the circuit board, this internal airflow channel that still is provided with of down lamp, airflow channel's entry end and exit end all set up on the preceding terminal surface of down lamp body, heat-conducting component is located airflow channel, entry end department is provided with into fan, the utility model discloses a change wind channel structure for the heat that the down lamp produced is guided to the front end and discharges, and then lets the down lamp embedding install and also can obtain good heat dissipation inside the ceiling.

Description

LED down lamp heat radiation structure

Technical Field

The utility model relates to a down lamp technical field, more specifically says that it relates to a LED down lamp heat radiation structure.

Background

The LED green lighting is one of the high-tech fields with development prospects in the 21 st century in line with the trend of global energy conservation and environmental protection. With the progress of semiconductor technology, the increasing cost performance of light-emitting diodes and the formal release of 'incandescent lamp elimination roadmap', the LED down lamp replaces the traditional illuminating lamp for daily use. LED tube lamps are widely applied to municipal lighting places such as supermarkets, markets, hotels, factories and the like, and the products can brighten the environment and beautify the environment, have wide coverage, more users and huge energy-saving potential.

However, the problem of heat dissipation is a crucial challenge in the structural design of the LED tube light, and the heat dissipation of the LED is solved, so that heat energy generated by the PN junction is dissipated as quickly as possible, the light emitting efficiency of the product is improved, the reliability and the service life of the product are improved, and the design method is a direction that an engineer must consider for the structural design of the LED tube light.

At present, the patent with the public number CN217274021U discloses an LED down lamp heat dissipation structure, which is characterized in that a fan is arranged at the tail end of the down lamp, and the fan is rotated to exhaust air outwards, so that heat is exhausted from the tail end, however, the down lamp is attractive in appearance during installation, many down lamps are embedded in a ceiling, only the front end is reserved to provide illumination, the tail end is totally plugged in the ceiling, and the tail end of the down lamp is in a relatively closed environment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a LED down lamp heat radiation structure, through changing the wind channel structure for the heat that the down lamp produced is guided to the front end and is discharged, and then lets the down lamp embedding install and also can obtain good heat dissipation inside the ceiling.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a LED down lamp heat radiation structure, includes the down lamp body, the down lamp body is including preceding terminal surface, be provided with glass cover, its characterized in that on the preceding terminal surface: this internal circuit board that is provided with of down lamp, one side of circuit board is provided with LED light emitting component, LED light emitting component is just to the glass cover of preceding terminal surface, the opposite side of circuit board is provided with heat-conducting component, heat-conducting component hugs closely the setting with the circuit board, this internal airflow channel that still is provided with of down lamp, airflow channel's entry end and exit end all set up on the preceding terminal surface of down lamp body, heat-conducting component is located airflow channel, entry end department is provided with the inlet fan.

The utility model discloses further set up to: the heat conduction assembly comprises a heat conduction silica gel pad and a heat conduction copper bar, the heat conduction silica gel pad is tightly attached to the circuit board, and the heat conduction copper bar is tightly attached to the heat conduction silica gel pad.

The utility model discloses further set up to: the heat conduction copper bar is including the bellying, the bellying is protruding to airflow channel one side, just the bellying sets up to bar structure, and its bar structure's extending direction is the same with airflow channel's direction.

The utility model discloses further set up to: and the inlet end and the outlet end are both provided with dust screens.

The utility model discloses further set up to: and a wind shield is arranged outside the outlet end, the cross section of the wind shield is of an L-shaped structure, and the wind shield is used for changing the direction of airflow discharged from the outlet end.

The utility model discloses further set up to: the down lamp is characterized in that a reflecting barrel is arranged in the down lamp body, one side of the reflecting barrel is aligned to the LED light-emitting element, the other side of the reflecting barrel is aligned to the glass cover of the front end face, and a reflecting coating is arranged on the inner surface of the reflecting barrel.

To sum up, the utility model discloses following beneficial effect has:

compared with the prior art, the utility model, set up the air current channel inside the down lamp body, and set up the entry end and exit end of the air current channel at the front end face of down lamp, when using, the front end face of down lamp is responsible for providing the light source and throws light on, so the front end face is external all the time, under the effect of the fan of advancing, outside air just can enter the air current channel from the entry end like this, take away the heat that LED light-emitting component produced, and discharge to the outside through the exit end again, realize good radiating effect; the down lamp of having solved among the prior art dispels the heat through the tail end, when facing the inside condition of embedding installation to the ceiling, can not obtain effective radiating problem.

And simultaneously, the utility model discloses still set up the deep bead at the exit end, through the deep bead will blow off hot-blast direction to the side, make the people stand and can not experience when the down lamp below like this and have hot-blast exhaust, let the exhaust hot-blast region that can not influence the down lamp below.

Drawings

FIG. 1 is a schematic view of the external structure of the present embodiment;

FIG. 2 is a schematic view of the internal structure of the present embodiment;

FIG. 3 is a schematic view of the structure of the air flow channel at the circuit board in the present embodiment;

fig. 4 is a schematic view of the cross-sectional structure of the airflow channel at the circuit board in the present embodiment.

Reference numerals: 1. a down lamp body; 101. a front end face; 2. a circuit board; 3. an LED light emitting element; 4. a heat conducting component; 401. a heat-conducting silica gel pad; 402. a heat conducting copper bar; 4021. a boss portion; 5. an air flow channel; 501. An inlet end; 502. an outlet end; 6. a fan inlet; 7. a dust screen; 8. a light reflecting cylinder; 9. a wind deflector.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses a heat dissipation structure of an LED (light emitting diode) down lamp, which comprises a down lamp body 1, wherein the down lamp body 1 comprises a front end surface 101, a glass cover is arranged on the front end surface 101, a circuit board 2 is arranged in the down lamp body 1, an LED light emitting element 3 is arranged on one side of the circuit board 2, the LED light emitting element 3 is right opposite to the glass cover of the front end surface 101, the front end surface 101 is one end of the down lamp for providing illumination, and light generated by the LED light emitting element 3 is emitted from the glass cover; the other side of the circuit board 2 is provided with the heat conducting component 4, the heat conducting component 4 is arranged in close contact with the circuit board 2, and as the LED light-emitting element 3 can generate more heat when in use, the heat can be radiated to the circuit board 2, so that the circuit board 2 and the LED light-emitting element 3 are in a high-temperature state, if the heat cannot be timely exhausted, the service lives of the circuit board 2 and the LED light-emitting element can be influenced, the heat conducting component 4 is closely arranged on the circuit board 2 to guide the heat to the heat conducting component 4, the down lamp body 1 is also internally provided with the air flow channel 5, the inlet end 501 and the outlet end 502 of the air flow channel 5 are both arranged on the front end surface of the down lamp body 1, and the heat conducting component 4 is arranged in the air flow channel 5, so that the heat conducting component 4 can exhaust the guided heat in a heat exchange mode with air in the air flow channel 5, and the function of radiating the circuit board 2 and the LED light-emitting element 3 is achieved; the inlet fan 6 is arranged at the inlet end 501, the inlet fan 6 is driven by a small motor to rotate, and the inlet fan 6 can guide external air into the airflow channel more quickly, so that the flowing speed of the air in the airflow channel is increased, and the heat dissipation effect is enhanced to a certain extent; specifically, see fig. 2, the arrow in fig. 2 is the air flow direction, outside air enters from the inlet end 501, after passing through the heat conduction assembly 4, heat is exhausted from the outlet end 502, and the wind deflector 9 is arranged outside the outlet end 502, the cross section of the wind deflector 9 is set to be an "L" shaped structure, the wind deflector 9 is arranged so that hot air exhausted from the outlet end 502 cannot directly blow to the lower area of the down lamp, but can be exhausted along the direction of the side face, which is advantageous in that hot air is basically scattered along the direction of the parallel ceiling, and even if a person stands below the down lamp, the person cannot feel hot air.

Further, heat conduction subassembly 4 includes heat conduction silica gel pad 401 and heat conduction copper bar 402, and heat conduction silica gel pad 401 is hugged closely and is set up on circuit board 2, and heat conduction copper bar 402 is hugged closely and is set up on heat conduction silica gel pad 401, because there is some electrically conductive solder joints on the circuit board 2, consequently need hug closely with insulating and the good heat conduction silica gel pad 401 of heat conduction effect and circuit board 2, and the best heat conduction copper bar 402 of heat conduction effect then hugs closely and sets up on heat conduction silica gel pad 401.

Further, referring to fig. 3 and 4, the heat conduction copper bar 402 includes the boss 4021, and the boss 4021 is protruding to 5 one sides of the air flow channel, and the boss 4021 sets up to the bar structure, and its bar structure's extending direction is the same with the direction of the air flow channel, can let the air pass through whole boss 2021's surface fast through setting up the boss 4021 parallel with the air flow direction, can promote radiating effect.

Further, entry end 501 and exit end 502 all are provided with dust screen 7, and dust screen 7 can prevent that outside dust from getting into for airflow channel 5's inside can not pile up the dust, guarantees good radiating environment, and after dust screen 7 piles up the dust, because dust screen 7 is located on the preceding terminal surface of down lamp, only need in the time of daily clearance with instruments such as brushes clearance once can, very convenient.

Further, being provided with reflector 8 in the down lamp body 1, LED light-emitting component is aimed at to the one end of reflector 8, and the glass shade of terminal surface 101 before the other end is aimed at, and the internal surface of reflector 8 is equipped with reflective coating, and the effect of reflector 8 lies in concentrating the light that LED light-emitting component 3 sent for the illumination effect is better.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a LED down lamp heat radiation structure, includes down lamp body (1), down lamp body (1) is including preceding terminal surface (101), be provided with glass cover, its characterized in that on preceding terminal surface (101): be provided with circuit board (2) in down lamp body (1), one side of circuit board (2) is provided with LED light emitting component (3), LED light emitting component (3) is just to the glass cover of preceding terminal surface (101), the opposite side of circuit board (2) is provided with heat-conducting component (4), heat-conducting component (4) hug closely the setting with circuit board (2), still be provided with airflow channel (5) in down lamp body (1), entry end (501) and exit end (502) of airflow channel (5) all set up on the preceding terminal surface of down lamp body (1), heat-conducting component (4) are located airflow channel (5), entry end (501) department is provided with into fan (6).

2. The LED down lamp heat dissipation structure of claim 1, wherein: heat conduction assembly (4) are including heat conduction silica gel pad (401) and heat conduction copper bar (402), heat conduction silica gel pad (401) is hugged closely and is set up on circuit board (2), heat conduction copper bar (402) is hugged closely and is set up on heat conduction silica gel pad (401).

3. An LED down lamp heat radiation structure according to claim 2, characterized in that: the heat conduction copper bar (402) is including bellying (4021), bellying (4021) are protruding to air current passageway (5) one side, just bellying (4021) sets up to the bar structure, and its bar structure's extending direction is the same with air current passageway's direction.

4. An LED down lamp heat radiation structure according to claim 1, characterized in that: and the inlet end (501) and the outlet end (502) are both provided with dust screens (7).

5. An LED down lamp heat radiation structure according to claim 1, characterized in that: and a wind deflector (9) is arranged outside the outlet end (502), the section of the wind deflector (9) is set to be an L-shaped structure, and the wind deflector (9) is used for changing the direction of the air flow discharged from the outlet end (502).

6. The LED down lamp heat dissipation structure of claim 1, wherein: the down lamp is characterized in that a reflecting cylinder (8) is arranged in the down lamp body (1), one side of the reflecting cylinder (8) is aligned to the LED light-emitting element, the other side of the reflecting cylinder is aligned to the glass cover of the front end face (101), and a reflecting coating is arranged on the inner surface of the reflecting cylinder (8).