CN212408419U

CN212408419U - Down lamp capable of enhancing heat dissipation

Info

Publication number: CN212408419U
Application number: CN202020957785.2U
Authority: CN
Inventors: 曹亮亮; 傅明燕; 陈小波; 刘观凤
Original assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Current assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-26
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a down lamp with enhanced heat dissipation, which realizes the connection of a light source plate and a mounting component through a heat-conducting connecting mechanism, on one hand, the heat of the light source plate can be conducted to the mounting component, and the heat dissipation is carried out through the mounting component; the heat is conducted to the mounting assembly from the inside of the light source plate through the screws, and based on the characteristic of high transverse heat conductivity coefficient of the substrate, the heat of the light source plate can be quickly conducted to the mounting assembly and is diffused outwards by utilizing the fact that the inner side edge of the light source plate is in contact with the screws for heat conduction; on the other hand, the light source board is not contacted with the lamp body, so that a more effective passive heat dissipation space is provided, and the passive heat dissipation performance is improved. The utility model discloses with installing support, lamp body, light source board installation as an organic whole, increased heat radiating area, very big improvement the temperature rise condition of whole lamp. The utility model discloses need not additionally to set up the radiating piece, whole lamp cost reduction, the assembly mode is more simplified moreover, is favorable to whole lamp automated production, improves production efficiency.

Description

Down lamp capable of enhancing heat dissipation

Technical Field

The utility model relates to a light technical field, more specifically says, relates to a reinforcing radiating down lamp.

Background

The down lamp in the prior art usually needs to be provided with an independent or integrated metal radiating piece for heat dissipation, so that the cost is high and the structure is complex. The contact mode of light source board and lamp body or radiating piece is surface contact, and light source board carries out surface contact along thickness direction with lamp body or radiating piece promptly, but because the surface of light source board is not smooth level and smooth, area of contact is limited, and in order to realize surface contact, locks between light source board and the radiating piece, and passive radiating effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a reinforcing radiating down lamp, need not additionally set up the radiating piece, utilize the coupling mechanism of heat conduction to effectively conduct heat to reinforcing passive heat dispersion realizes dual radiating effect.

The technical scheme of the utility model as follows:

a down lamp with enhanced heat dissipation comprises a lamp body, a light source assembly, a reflecting cup, a light-passing plate and an installation assembly, wherein the light source assembly comprises a light source plate and a driving circuit; the light source board is not in contact with the lamp body.

Preferably, the connecting mechanism is tightly matched with the lamp body.

Preferably, the installation component comprises an installation support and a clamping spring, the connection mechanism is a heat conduction support column extending towards the lamp body from the installation support, the end part of the heat conduction support column penetrates through the inner side of the lamp body, and the light source plate is fixed at the end part of the heat conduction support column.

Preferably, the heat conduction support column is provided with a through hole along the length direction, and the light source plate is mounted on the heat conduction support column through a screw.

Preferably, the bottom of the lamp body is provided with a protruding mounting groove, the light source plate is arranged in the mounting groove, a gap is formed between the light source plate and the bottom of the mounting groove, and the side wall of the lamp body is provided with a vent hole.

Preferably, the vent hole is formed by cutting a side wall of the lamp body and folding the side wall of the lamp body at a certain angle toward the inner side of the lamp body, and the opening of the vent hole faces the bottom of the lamp body.

Preferably, the light reflecting cup is arranged on the light emitting surface of the light source plate, the light transmitting plate is fixedly connected with the lamp body, and the light reflecting plate is fixedly pressed on the light source plate through the light transmitting plate.

Preferably, the light-transmitting plate is fastened to the lamp body through a clamping block on the inner side of the lamp body.

Preferably, a driving bottom box is arranged on the outer side of the bottom of the lamp body, and the driving bottom box cover is arranged on the mounting bracket.

As preferred, the terminal surface of box has seted up the breach of stepping down corresponding to the installing support at the bottom of the drive, and the installing support is located the breach of stepping down, the bottom outside of the terminal surface laminating lamp body of box at the bottom of the drive.

Preferably, the light source assembly is a DOB light source plate, and the driving circuit is integrated on a light emitting surface of the light source plate.

Preferably, the driving circuit is external and is arranged in the driving bottom box or is arranged outside the driving bottom box through a lead.

The utility model has the advantages as follows:

the down lamp with the enhanced heat dissipation function realizes the connection between the light source plate and the mounting assembly through the heat-conducting connecting mechanism, on one hand, the heat of the light source plate can be conducted to the mounting assembly, and the heat dissipation is carried out through the mounting assembly; the heat is conducted to the mounting assembly from the inside of the light source plate through the screws, and based on the characteristic of high transverse heat conductivity coefficient of the substrate, the heat of the light source plate can be quickly conducted to the mounting assembly and is diffused outwards by utilizing the fact that the inner side edge of the light source plate is in contact with the screws for heat conduction; on the other hand, the light source board is not contacted with the lamp body, so that a more effective passive heat dissipation space is provided, and the passive heat dissipation performance is improved. The utility model discloses with installing support, lamp body, light source board installation as an organic whole, increased heat radiating area, very big improvement the temperature rise condition of whole lamp.

The utility model discloses only utilize the passive heat dissipation of installation component and lamp body can accomplish the heat dissipation demand, need not additionally to set up the radiating piece, and then reduce the part number of whole lamp, not only whole lamp cost reduction, the assembly mode is more simplified moreover, is favorable to whole lamp automated production, improves production efficiency.

Drawings

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

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is a cross-sectional view of the present invention;

in the figure: 10 is the lamp body, 11 is the mounting groove, 12 is the air vent, 13 is the section, 20 is the light source board, 30 is the reflection of light cup, 40 is the light-passing board, 51 is the installing support, 52 is the clamp spring, 53 is the heat conduction support column, 531 is the through-hole, 60 is the drive end box, 61 is the breach of stepping down, 70 is the screw.

Detailed Description

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

The utility model discloses a solve the light source board heat conduction inefficiency that prior art exists, need additionally set up the radiating piece, overall cost is high, the part is many, be difficult to carry out automation assembly etc. not enough, a reinforcing radiating down lamp is provided, utilize the high thermal conductivity of installation component, conduct the heat of light source board to installation component fast, and directly dispel the heat to the atmosphere through installation component, improve heat dispersion, and then only utilize the lamp body can accomplish the heat dissipation demand, need not additionally to set up the radiating piece, reduce part quantity, be favorable to whole lamp automated production.

As shown in fig. 1, fig. 2 and fig. 3, reinforcing radiating down lamp, including lamp body 10, light source subassembly, anti-light cup 30, light-passing board 40, installation component, the light source subassembly includes light source board 20 and drive circuit, and the installation component sets up in the bottom outside of lamp body 10, and light source board 20 is connected with the installation component through the coupling mechanism of heat conduction, and the bottom of lamp body 10 is worn to locate by the coupling mechanism. The heat generated by the light source board 20 during operation is quickly conducted to the mounting assembly through the connecting mechanism, and the heat is diffused outwards through the mounting assembly by using the mounting assembly as a heat sink. Meanwhile, the light source board 20 is not in contact with the lamp body 10, and a sufficient airflow flowing space is formed between the periphery of the light source board 20 and the lamp body 10, so that the passive heat dissipation performance is improved.

In this embodiment, coupling mechanism and lamp body 10 tight fit, coupling mechanism is when wearing to locate lamp body 10 promptly, with lamp body 10 in close contact with, and then can directly conduct a part of heat to lamp body 10, assists the heat dissipation through lamp body 10, increases holistic radiating effect. And, installation component, lamp body 10, light source board 20 set up as an organic whole, have increased heat radiating area, very big improvement the temperature rise condition of whole lamp.

In this embodiment, the mounting assembly includes a mounting bracket 51 and a clamping spring 52, the mounting bracket 51 is disposed across the outer side of the bottom of the lamp body 10, the connecting mechanism is a heat-conducting support column 53 extending from the mounting bracket 51 toward the lamp body 10, an end of the heat-conducting support column 53 penetrates the inner side of the lamp body 10, and the light source plate 20 is fixed to the end of the heat-conducting support column 53. Since the heat conductive support pillar 53 has a certain height when being inserted into the inner side of the lamp body 10, when the light source board 20 is fixed to the end of the heat conductive support pillar 53, the light source board 20 is tightly supported by the heat conductive support pillar 53, and a stable gap exists between the light source board 20 and the lamp body 10.

In order to simplify the assembly structure of the light source board 20, facilitate the installation of the screw 70, and prevent the light source board 20 from being bent and damaged due to the excessive locking of the screw 70, in the embodiment, the heat conducting support column 53 is provided with a through hole 531 along the length direction, the screw 70 penetrates through the through hole 531 or is screwed in the through hole 531 of the thread structure, and the light source board 20 is installed on the heat conducting support column 53 through the screw 70. Furthermore, the present embodiment can complete the fixing and installation of the mounting bracket 51 and the light source plate 20 by using a set of screws 70; and, when the screw 70 is locked, the light source board 20 is effectively prevented from being bent at the position where the screw 70 is disposed under the supporting action of the heat conductive support column 53.

In this embodiment, on the one hand, the assembly structure of the light source board 20 can be simplified, and on the other hand, the heat of the light source board 20 can be transferred to the mounting bracket 51 through the screw 70 and diffused outward through the mounting bracket 51. Based on the characteristic that the transverse heat conductivity coefficient of the substrate is high, the heat of the light source plate 20 can be quickly conducted to the mounting assembly and is diffused outwards by utilizing the fact that the inner side edge of the light source plate 20 is in contact with the screw 70 for heat conduction.

In this embodiment, the bottom of the lamp body 10 is provided with a protruding mounting groove 11, the light source plate 20 is disposed in the mounting groove 11, in order to enhance the air circulation inside the whole lamp, a gap is formed between the light source plate 20 and the bottom of the mounting groove 11, and the side wall of the lamp body 10 is provided with a vent hole 12, so that the heat of the light source plate 20 is promoted to diffuse outwards through the air circulation, and the light source plate serves as an auxiliary heat dissipation means. In this embodiment, the vent hole 12 is formed by cutting a side wall of the lamp body 10 and bending the side wall at a certain angle. The cut is at least two continuous edges, a triangular cut, a three-edge cut or a multi-edge cut and the like are formed, and a foldable slice 13 is formed, namely, one edge of the slice 13 is not cut and is connected with the side wall of the lamp body 10. In order to prevent dust from falling from the air vent 12, in a specific embodiment, the cut is directed to the bottom of the lamp body 10, the cut piece 13 is folded back toward the inside of the lamp body 10, and the opening of the air vent 12 is directed to the bottom of the lamp body 10.

In order to further simplify the assembly, in the present embodiment, the light reflecting cup 30 covers the light emitting surface of the light source plate 20, the light transmitting plate 40 is fixedly connected to the lamp body 10, and the light reflecting plate is pressed and fixed on the light source plate 20 through the light transmitting plate 40. The light-transmitting plate 40 is installed without using an additional screw 70 or clamping a structure to fix the light-reflecting cup 30, and meanwhile, the light-reflecting cup 30 can be fixed, so that the automatic assembly is realized more favorably. Specifically, the light-transmitting plate 40 is fastened to the lamp body 10 through the fastening blocks on the inner side of the lamp body 10, so that the nail-free installation is realized, the assembly is further simplified, and the efficiency of automatic assembly is improved. In one embodiment, the light-transmitting plate 40 can be implemented as a flat mirror or a lens.

In order to satisfy safety regulations for the whole lamp, in the present embodiment, a driving bottom box 60 is disposed at the outer side of the bottom of the lamp body 10, and the driving bottom box 60 is covered on the mounting bracket 51. Specifically, the end face of the bottom driving box 60 is provided with a yielding notch 61 corresponding to the mounting bracket 51, the mounting bracket 51 is located in the yielding notch 61, and the end face of the bottom driving box 60 is attached to the outer side of the bottom of the lamp body 10. During assembly, the driving bottom case 60 and the mounting bracket 51 may be pre-assembled, and then the mounting bracket 51 with the driving bottom case 60, the lamp body 10 and the light source board 20 may be assembled into a whole.

The driving bottom box 60 is provided for setting a driving circuit according to the implementation requirement, in addition to meeting the safety regulation of the whole lamp. Specifically, when the driving circuit is external, it is disposed in the driving bottom case 60 and electrically connected to the light source board 20 through a conducting wire penetrating through the bottom of the lamp body 10.

The driving bottom box 60 may not be provided with a driving circuit, and the driving circuit may be implemented in two modes, one mode is to implement the light source assembly as the DOB light source board 20, and the driving circuit is integrated on the light emitting surface of the light source board 20, that is, is arranged on the same surface as the LED chip, wherein components of the driving circuit adopt linear ICs; the other is to arrange the driving circuit as an external switch box outside the driving bottom box 60 through a conducting wire.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Changes, modifications, etc. to the above-described embodiments are intended to fall within the scope of the claims of the present invention, as long as they are in accordance with the technical spirit of the present invention.

Claims

1. A down lamp with enhanced heat dissipation comprises a lamp body, a light source assembly, a reflecting cup, a light-passing plate and an installation assembly, wherein the light source assembly comprises a light source plate and a driving circuit; the light source board is not in contact with the lamp body.

2. A downlight with enhanced heat dissipation according to claim 1 wherein the attachment mechanism is a close fit with the light body.

3. A downlight with enhanced heat dissipation as defined in claim 1 or 2, wherein the mounting assembly comprises a mounting bracket and a snap spring, the connecting mechanism is a heat-conducting support column extending from the mounting bracket toward the light body, an end of the heat-conducting support column is inserted into an inner side of the light body, and the light source board is fixed to the end of the heat-conducting support column.

4. A down lamp with enhanced heat dissipation according to claim 3, wherein the heat-conducting support column is provided with a through hole along the length direction, and the light source board is mounted on the heat-conducting support column through a screw.

5. A downlight with enhanced heat dissipation as defined in claim 1, wherein the bottom of the light body is provided with a protruding mounting groove, the light source board is disposed in the mounting groove, the light source board is disposed in a gap with the bottom of the mounting groove, and the side wall of the light body is provided with a vent hole.

6. A downlight with enhanced heat dissipation as defined in claim 5, wherein the ventilation aperture is formed by a cutout cut in a side wall of the light body and angled toward an inside of the light body, the opening of the ventilation aperture facing a bottom of the light body.

7. A downlight with enhanced heat dissipation as defined in claim 1, wherein the reflector cup is disposed on the light emitting surface of the light source board, and the light transmitting plate is fixedly connected to the light body, and the reflector plate is pressed and fixed to the light source board through the light transmitting plate.

8. A downlight with enhanced heat dissipation as defined in claim 7, wherein the light-transmitting plate is fastened to the light body by means of a fastening block on the inside of the light body.

9. A down lamp with enhanced heat dissipation as defined in claim 3, wherein a driving bottom box is disposed at the bottom outer side of the lamp body, and the driving bottom box is covered on the mounting bracket.

10. A down lamp with enhanced heat dissipation according to claim 9, wherein the end face of the driving bottom box is provided with a relief notch corresponding to the mounting bracket, the mounting bracket is positioned in the relief notch, and the end face of the driving bottom box is attached to the outer side of the bottom of the lamp body.

11. A downlight of enhanced heat dissipation according to claim 9 or 10 wherein the light source assembly is a DOB light source panel and the drive circuit is integrated into the light emitting face of the light source panel.

12. A down lamp with enhanced heat dissipation according to claim 9 or 10, wherein the driving circuit is external and is disposed in the driving chassis or is disposed outside the driving chassis through a wire.