CN212156877U

CN212156877U - SMD (surface mounted device) down lamp

Info

Publication number: CN212156877U
Application number: CN202020324456.4U
Authority: CN
Inventors: 董新立; 尚海锋; 苏安
Original assignee: Jiangsu Alite Semiconductor Technology Co ltd
Current assignee: Jiangsu Alite Semiconductor Technology Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-12-15
Anticipated expiration: 2030-03-16

Abstract

The utility model provides a SMD down lamp, which comprises a down lamp base, lamp panels, an LED light source, a glass protective cover, at least two groups of heat dissipation module groups arranged outside the down lamp base, an annular air inlet cavity arranged at the upper side of the heat dissipation module groups and an annular air outlet cavity arranged at the lower side of the heat dissipation module groups, wherein the annular air inlet cavity and the annular air outlet cavity are both fixedly arranged at the outer side of the down lamp base, the heat dissipation module groups comprise outer side radiating fins which surround the outer side of the down lamp base to form a heat dissipation cavity and inner side radiating fins which are fixed at the outer side of the down lamp base in the heat dissipation cavity, the inner side radiating fins are arranged in the heat dissipation cavity in a staggered way to form a heat dissipation channel distributed in a snake shape, one end of the heat dissipation channel is provided with an air inlet pipeline communicated with the annular air inlet cavity, the other end of the heat dissipation channel is provided with an air outlet pipeline communicated with the annular air outlet cavity, the utility model discloses simple structure can improve the radiating effect.

Description

SMD (surface mounted device) down lamp

Technical Field

The utility model relates to a lighting lamp, especially a SMD down lamp.

Background

The down lamp is a lighting lamp embedded into a ceiling and emitting light downwards, the existing SMD down lamp is required to be provided with radiating fins outside the down lamp base for ensuring the sealing and moisture-proof performance inside the down lamp base, so that heat generated during lighting of the down lamp is transmitted out, but the air circulation effect between the radiating fins is poor, and therefore the defect that the radiating effect is not good can be generated.

Therefore, an SMD down lamp having a simple structure and improved heat dissipation is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a SMD down lamp, simple structure can improve the radiating effect.

The utility model provides a following technical scheme:

an SMD (surface mounted device) down lamp comprises a down lamp base, a lamp panel fixedly arranged in the down lamp base, a plurality of LED (light emitting diode) light sources arranged on the lamp panel, and a glass shield connected at the port of the down lamp base in a sealing manner, and also comprises at least two groups of radiating module groups arranged outside the down lamp base, an annular air inlet cavity arranged at the upper side of the radiating module groups, and an annular air outlet cavity arranged at the lower side of the radiating module groups, wherein the annular air inlet cavity and the annular air outlet cavity are both fixedly arranged at the outer side of the down lamp base, the radiating module groups comprise outer radiating fins surrounding the outer side of the down lamp base to form a radiating cavity and inner radiating fins fixed outside the down lamp base in the radiating cavity, the inner radiating fins are staggered in the radiating cavity to form a radiating channel distributed in a snake shape, an air inlet pipeline communicated with the annular air inlet cavity is arranged at one end of, the annular air inlet cavity is also provided with a cold air inlet pipe, and the annular air outlet cavity is also provided with an exhaust pipe which can be communicated with an exhaust fan through a pipeline.

Preferably, the heat dissipation module groups are four groups which are distributed annularly and are uniformly arranged.

Preferably, the outer fin and the inner fin are both aluminum alloy fins.

Preferably, the inner side radiating fins are uniformly arranged outside the base of the down lamp at equal intervals.

Preferably, the number of the inner radiating fins in any one outer radiating fin is at least two.

The utility model has the advantages that: the long-time illumination of SMD down lamp can produce a large amount of heats, thermal conduction is realized to heat accessible outside fin and inboard fin, through setting up modular thermal module group, the accessible air exhauster realizes exporting the heat in every thermal module group, improves the radiating effect, and because the inboard fin separates into the crisscross heat dissipation channel that is snakelike setting with the outside fin, thereby make cold wind can contact the effective area increase of inboard fin, and then can further improvement heat dissipation heat conduction effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a partial cross-sectional view of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a top view of the annular air inlet chamber of the present invention;

fig. 5 is a top view of the outer fin of the present invention;

notation in the figure: the LED lamp comprises a down lamp base 1, a lamp panel 2, an LED light source 3, a glass shield 4, a radiating module group 5, an annular air inlet cavity 6, an annular air outlet cavity 7, an outer radiating fin 8, an inner radiating fin 9, a radiating channel 10, an air inlet pipeline 11, an air outlet pipeline 12, a cold air inlet pipe 13 and an exhaust pipe 14.

Detailed Description

Referring to fig. 1 to 5, in this embodiment, the SMD down lamp includes a down lamp base 1, a lamp panel 2 fixedly disposed inside the down lamp base 1, a plurality of LED light sources 3 mounted on the lamp panel 2, and a glass cover 4 sealingly connected to a port of the down lamp base 1, and further includes at least two sets of heat dissipation module sets 5 disposed outside the down lamp base 1, an annular air inlet chamber 6 disposed on an upper side of the heat dissipation module sets 5, and an annular air outlet chamber 7 disposed on a lower side of the heat dissipation module sets 5, wherein the annular air inlet chamber 6 and the annular air outlet chamber 7 are both fixedly disposed outside the down lamp base 1, the heat dissipation module sets 5 include outer fins 8 enclosing outside the down lamp base 1 to form a heat dissipation chamber, and inner fins 9 fixed outside the down lamp base 1 in the heat dissipation chamber, the inner fins 9 are staggered in the heat dissipation chamber to form a serpentine heat dissipation channel 10 in the heat dissipation chamber, and one end of the heat dissipation channel 10 is provided with an air inlet pipeline 11 communicated with the annular air inlet cavity 6, the other end of the heat dissipation channel is provided with an air outlet pipeline 12 communicated with the annular air outlet cavity 7, the annular air inlet cavity 6 is also provided with a cold air inlet pipe 13, and the annular air outlet cavity 7 is also provided with an exhaust pipe 14 communicated with an exhaust fan through a pipeline.

The heat dissipation module groups 5 are four groups which are distributed annularly and are uniformly arranged.

The outer fins 8 and the inner fins 9 are aluminum alloy fins.

The inner side radiating fins 9 are uniformly arranged outside the down lamp base 1 at equal intervals.

There are at least two sets of inner fins 9 in any one of the outer fins 8.

The utility model discloses a theory of operation is: the long-time illumination of SMD down lamp can produce a large amount of heats, heat accessible outside fin 8 and inboard fin 9 realize thermal conduction, through setting up modular heat dissipation module group 5, the accessible air exhauster realizes exporting the heat in every heat dissipation module group 5, the radiating effect is improved, and because inboard fin 9 separates into outside fin 8 crisscross heat dissipation channel 10 for snakelike setting, thereby make cold wind can contact the effective area increase of inboard fin 9, and then can further improvement heat dissipation heat conduction effect.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An SMD down lamp comprises a down lamp base, a lamp plate fixedly arranged in the down lamp base, a plurality of LED light sources arranged on the lamp plate, and a glass protective cover connected with the port of the down lamp base in a sealing manner, and is characterized by further comprising at least two groups of radiating module groups arranged outside the down lamp base, an annular air inlet cavity arranged at the upper side of the radiating module groups, and an annular air outlet cavity arranged at the lower side of the radiating module groups, wherein the annular air inlet cavity and the annular air outlet cavity are fixedly arranged at the outer side of the down lamp base, the radiating module groups comprise outer radiating fins which surround the outer side of the down lamp base to form a radiating cavity and inner radiating fins which are fixed outside the down lamp base in the radiating cavity, the inner radiating fins are arranged in the radiating cavity in a staggered manner, so that a radiating channel with snakelike distribution is formed in the radiating cavity, and one end of the heat dissipation channel is provided with an air inlet pipeline communicated with the annular air inlet cavity, the other end of the heat dissipation channel is provided with an air outlet pipeline communicated with the annular air outlet cavity, the annular air inlet cavity is further provided with a cold air inlet pipe, and the annular air outlet cavity is further provided with an exhaust pipe which can be communicated with an exhaust fan through a pipeline.

2. The SMD down lamp as claimed in claim 1, wherein the heat dissipating module groups are four groups distributed in a ring shape and uniformly arranged.

3. An SMD down lamp as claimed in claim 1, wherein said outer and inner fins are aluminium alloy fins.

4. An SMD downlight as claimed in claim 1, wherein the inner fins are evenly spaced outside the base of the downlight.

5. An SMD down lamp as claimed in claim 1, wherein there are at least two sets of said inner fins in any of said outer fins.