CN213452914U

CN213452914U - LED lamp with built-in power supply

Info

Publication number: CN213452914U
Application number: CN202021117803.2U
Authority: CN
Inventors: 张成科; 王林吉; 郑兆勇
Original assignee: Ningbo Self Electronics Co Ltd
Current assignee: Ningbo Self Electronics Co Ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-06-15
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses a LED lamp with a built-in power supply, which comprises a lamp body, a driving power supply and a lamp plate, wherein the lamp body comprises a shell, a mounting cavity is arranged in the shell, a partition plate which divides the mounting cavity into an upper mounting cavity and a lower mounting cavity is arranged in the mounting cavity, the driving power supply and the lamp plate are respectively arranged in the upper mounting cavity and the lower mounting cavity, and the driving power supply and the partition plate are arranged at intervals so as to form an isolation cavity between the driving power supply and the partition plate; the utility model discloses a built-in LED lamp of power sets up drive power supply and lamp plate respectively in the both sides of baffle to with drive power supply with thereby baffle interval arrangement forms the isolation chamber between the two, with the built on stilts setting of drive power supply, makes lamp plate and drive power supply's heat not in the gathering of baffle department, avoids the heat to disperse the problem that does not go out.

Description

LED lamp with built-in power supply

Technical Field

The utility model relates to the field of lighting technology, especially a built-in LED lamp of power.

Background

Under the background of energy conservation and environmental protection, the LED lamp is increasingly applied to the fields of household and commercial illumination because of high light emitting efficiency and good light condensing performance. The LED lamp comprises a lamp body and a driving power supply, the driving power supply is divided into a built-in scheme and an external scheme, when the driving power supply is built in, a large amount of heat can be generated, therefore, the general small and high-power LED lamp can adopt an external installation mode of the driving power supply, the power supply is external and needs to be provided with a special installation position, the assembly relation between a power box and the lamp body needs to be ensured during assembly, the integral structure of the lamp is complex, the assembly process is complex, and the assembly cost is also high.

Although the driving power supply is built in the lamp body at present, the driving power supply is installed in the lamp body due to the large heat generation of the LED lamp, which easily causes the problem that the driving power supply fails in a high-temperature environment. Therefore, how to reasonably arrange the driving power supply and the installation position of the LED lamp in the lamp body is a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a built-in LED lamp of power to solve above-mentioned technical problem.

The utility model provides a built-in LED lamp of power, includes lamp body, drive power supply and lamp plate, the lamp body includes the casing, be equipped with the installation cavity in the casing, be equipped with the baffle that divide into installation cavity and lower installation cavity with it in the installation cavity, drive power supply and lamp plate set up respectively in last installation cavity and the lower installation cavity, thereby drive power supply with thereby baffle interval arrangement forms the isolation chamber between the two.

Preferably, the driving power supply comprises a main board, and a front surface of the main board faces away from the partition board.

Preferably, a heat dissipation module is arranged right above the front surface of the main board.

Preferably, the driving power supply further includes a power supply box, the main board is disposed in the power supply box, and the power supply box includes a top cover opposite to the front surface of the main board, a bottom plate opposite to the back surface of the main board, and a side plate disposed between the top cover and the bottom plate.

Preferably, the heat dissipation module comprises a heat dissipation seat arranged on the lamp body, and the bottom surface of the heat dissipation seat is attached to the top cover.

Preferably, the top surface of the heat radiation seat is provided with a heat radiation fin.

Preferably, the lamp panel is attached to the partition plate.

Preferably, a heat conduction rib which protrudes inwards from the inner wall of the shell and is attached to the side plate is arranged in the upper mounting cavity.

Preferably, the heat conducting ribs are arranged in a plurality and are arranged at intervals along the length direction of the side plate.

Preferably, a heat dissipation rib for connecting the partition plate and the shell is arranged in the isolation cavity.

Preferably, an overhead layer is arranged between one side of the heat dissipation rib, which is far away from the partition board, and the driving power supply.

Preferably, the partition plate and the shell are made of heat conducting materials.

Preferably, the edge of the partition is connected with the inner wall of the shell in a seamless mode.

The technical effects of the utility model:

the utility model discloses a built-in LED lamp of power sets up drive power supply and lamp plate respectively in the both sides of baffle to with drive power supply with thereby baffle interval arrangement forms the isolation chamber between the two, with the built on stilts setting of drive power supply, makes lamp plate and drive power supply's heat not in the gathering of baffle department, avoids the heat to disperse the problem that does not go out.

Drawings

Embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of an LED lamp with a built-in power supply according to the present embodiment.

Fig. 2 is an exploded schematic view of the LED lamp with the built-in power supply of the present embodiment.

Fig. 3 is an exploded view of another view angle of the LED lamp with the built-in power supply according to the present embodiment.

Fig. 4 is a schematic cross-sectional structure diagram of the LED lamp with a built-in power supply of the present embodiment.

Fig. 5 is a schematic structural diagram of the interior of the lamp housing of the present embodiment.

Fig. 6 is a schematic structural diagram of the interior of the lamp housing (with the driving power supply) of the present embodiment.

Detailed Description

The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 6, the LED lamp with a built-in power supply of the embodiment includes a lamp body 100, a driving power supply 200 and a lamp panel 300, wherein the lamp body 100 includes a housing 101, a mounting cavity 102 is provided in the housing 101, a partition 105 dividing the mounting cavity 102 into an upper mounting cavity 103 and a lower mounting cavity 104 is provided in the mounting cavity 102, the driving power supply 200 and the lamp panel 300 are respectively provided in the upper mounting cavity 103 and the lower mounting cavity 104, and the driving power supply 200 and the partition 105 are arranged at intervals to form an isolation cavity 106 therebetween. Be equipped with the LED chip on lamp plate 300 as the light source, can produce a large amount of heats when lighting, and many components and parts also can produce a large amount of heats in driving power supply 200, owing to set up isolation chamber 106 in this embodiment, the heat that makes driving power supply 200 and lamp plate 300 produce does not gather together, avoids the heat to disperse the problem that does not go out.

In order to make the heat dissipation direction of the driving power supply 200 not face the lamp panel 300, the driving power supply 200 includes a main board 201, and the front surface of the main board 201 faces away from the partition 105. The main board 201 is used for installing components and parts, and is a functional module of the driving power supply 200, and comprises components and parts with larger heat generation, such as an inductor, an MOS (metal oxide semiconductor) transistor, a transformer, a common mode, a rectifier diode and the like, and the components and parts are generally arranged on the front surface of the main board 201, so that the front surface of the main board 201 is back to the partition plate 105, the components and parts with higher heat generation in the main board 201 can be back to the partition plate 105, the components and parts can be reversely cooled, heat accumulation is further avoided, and the heat dissipation effect is improved under the condition.

In order to further guide the heat of the driving power supply 200 in the direction away from the lamp panel 300, in this embodiment, a heat dissipation module 400 is disposed right above the front surface of the main board 201.

In order to better distribute the heat generated by the driving power supply 200, in the embodiment, the driving power supply 200 further includes a power supply box 202, the main board 201 is disposed in the power supply box 202, and the power supply box 202 includes a top cover 2021 opposite to the front surface of the main board 201, a bottom plate 2022 opposite to the back surface of the main board 201, and a side plate 2023 disposed between the top cover 2021 and the bottom plate 2022. The power supply box 202 may be made of a high thermal conductivity plastic to reduce the internal device temperature. The inner wall of the shell 101 is provided with a radial bulge for bearing the power supply box 202 for fixing.

In order to better dissipate heat, in this embodiment, the heat dissipation module 400 includes a heat dissipation base 401 disposed on the lamp body 100, and a bottom surface of the heat dissipation base 401 abuts against the top cap 2021. The heat dissipation base 401 is made of a heat conduction material, so that heat accumulated on the top cover of the power supply box 202 can be conducted out by the heat dissipation base 401 as soon as possible, and further, the top surface of the heat dissipation base 401 is provided with a heat dissipation fin 402. The heat sink 402 can increase the heat dissipation area and improve the heat dissipation effect. In this embodiment, the heat dissipation fins 402 are arranged in a grid, so that the holes in the grid provide upward channels for the heat dissipation of the driving power supply 200 while increasing the heat dissipation area.

In order to enable the heat of the lamp panel 300 to be rapidly conducted out, in this embodiment, the lamp panel 300 is attached to the partition 105.

The driving power supply 200 can also increase the contact area with the housing 101 to improve the heat dissipation effect, in this embodiment, the upper mounting cavity 103 is provided with a heat conducting rib 1031 protruding inwards from the inner wall of the housing 101 and abutting against the side plate 2023. The side plate 2023 is generally in a surrounding form, and may be formed by splicing and surrounding a plurality of surfaces, or may be a surrounding arc surface, which is difficult to be sufficiently contacted with the inner wall of the housing 101, and therefore, the contact area may be increased by arranging the heat conducting ribs 1031 to be attached to the side plate 2023. Further, a plurality of heat conducting ribs 1031 are arranged at intervals along the length direction of the side plate 2023.

In order to improve the heat conduction and dissipation effects of the partition 105 on the lamp panel 300, in this embodiment, the isolation cavity 106 is provided with a heat dissipation rib 107 for connecting the partition 105 and the housing 101. The heat dissipation ribs 107 are provided with a plurality of pieces and arranged in a surrounding mode, the heat dissipation ribs 107 extend radially from the edges to the middle of the partition plate 105, the extending length is 1/3-2/3 from the center of the partition plate 105 to the edges, and the heat dissipation ribs 107 can conduct heat to the shell 101 better.

In order to avoid heat accumulation, in this embodiment, an empty layer 108 is disposed between a side of the heat dissipation rib 107 away from the partition 105 and the driving power supply 200. The air heat conduction effect is relatively poor, and the back surface of the main board 201 is suspended, so that heat can not be transferred in the direction.

In order to improve the heat conduction effect, the partition 105 and the housing 101 are made of heat conduction materials.

In order to guide the heat of the lamp panel 300 to the housing 101 as soon as possible, in this embodiment, the edge of the partition 105 is seamlessly connected with the inner wall of the housing 101. Furthermore, the shell 101 and the partition 105 are integrally formed, so that the heat conduction and dissipation effects are better.

The specific application of this embodiment is more suitable for a track lamp, the housing of the track lamp is generally cylindrical, in this embodiment, the housing 101 is a cylinder with openings 1011 at both ends, the partition 105 is perpendicular to the central axis of the cylinder, and the opening 1011 of the upper mounting cavity 103 is provided with a heat dissipation module 400 as a lamp cover. The lower mounting cavity 104 is further provided with a bracket 700, a condenser lens 500 and a reflective cup 600. Support 700 is used for fixed lamp plate 300, the top of casing 101 still articulates there is rotation seat 800, rotates seat 800 and track cooperation.

In order to further improve the heat dissipation effect, in this embodiment, the thickness of the partition 105 is 5mm to 20mm to improve the heat storage capacity, and the heat of the lamp panel 300 is absorbed and guided out to the lamp housing 101. The wall thickness of the shell 101 near the lamp panel 300 is larger than other positions so as to store energy and dissipate heat.

In summary, the heating sources of the LED lamp with the built-in power supply of the present embodiment are the driving power supply 200 and the lamp panel 300, the driving power supply 200 is in contact with the heat dissipation module 400 through the top, the side is in contact with the housing 101, or the gap is small to dissipate heat, and the rest of the bottom is suspended except for positioning; the lamp panel 300 is through contacting with the partition 105 for heat dissipation, and the two do not influence each other. The top of the heat dissipation module 400 as a cover is in a grid shape to provide an upward channel for heat dissipation of the driving power supply 200, and the casing 101 is tightly attached to the side plate of the driving power supply 200 to increase the heat dissipation area. The wall thickness of the housing 101 increases in the range of contact with the lamp panel 300 to increase heat storage, while the reverse side of the heat sink structure increases the heat dissipation area.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a built-in LED lamp of power, includes lamp body (100), drive power supply (200) and lamp plate (300), lamp body (100) includes casing (101), be equipped with installation cavity (102) in casing (101), be equipped with baffle (105) that divide into installation cavity (103) and lower installation cavity (104) with it in installation cavity (102), drive power supply (200) and lamp plate (300) set up respectively go up installation cavity (103) and under in installation cavity (104), its characterized in that, drive power supply (200) with thereby baffle (105) interval arrangement forms isolation chamber (106) between the two.

2. The LED lamp of claim 1, wherein the driving power supply (200) comprises a main board (201), and a front surface of the main board (201) faces away from the partition (105).

3. The LED lamp with the built-in power supply according to claim 2, wherein a heat dissipation module (400) is arranged right above the front face of the main board (201).

4. The LED lamp with built-in power supply of claim 3, wherein the driving power supply (200) further comprises a power supply box (202), the main board (201) is disposed in the power supply box (202), and the power supply box (202) comprises a top cover (2021) opposite to the front surface of the main board (201), a bottom plate (2022) opposite to the back surface of the main board (201), and a side plate (2023) disposed between the top cover (2021) and the bottom plate (2022).

5. The LED lamp with the built-in power supply according to claim 4, wherein the heat dissipation module (400) comprises a heat dissipation seat (401) arranged on the lamp body (100), and the bottom surface of the heat dissipation seat (401) abuts against the top cover (2021).

6. The LED lamp with built-in power supply of claim 5, wherein the top surface of the heat sink (401) is provided with a heat sink (402).

7. The LED lamp with the built-in power supply according to any one of claims 1 to 6, wherein the lamp panel (300) is attached to the partition plate (105).

8. The LED lamp with the built-in power supply according to any one of claims 4 to 6, wherein a heat conducting rib (1031) protruding inwards from the inner wall of the housing (101) and abutting against the side plate (2023) is arranged in the upper mounting cavity (103).

9. The LED lamp with built-in power supply of claim 8, wherein the heat conducting ribs (1031) are provided in plurality and arranged at intervals along the length direction of the side plate (2023).

10. The LED lamp with the built-in power supply according to any one of claims 1 to 6, wherein a heat dissipation rib (107) connecting the partition plate (105) and the shell (101) is arranged in the isolation cavity (106).

11. The LED lamp with built-in power supply of claim 10, wherein an overhead layer (108) is provided between the side of the heat dissipation rib (107) away from the partition (105) and the driving power supply (200).

12. The LED lamp with built-in power supply according to any one of claims 1 to 6, wherein the partition (105) and the housing (101) are made of heat conducting materials.

13. The LED lamp with the built-in power supply according to any one of claims 1 to 6, wherein the edge of the partition (105) is seamlessly connected with the inner wall of the shell (101).

14. The LED lamp with the built-in power supply according to any one of claims 1 to 6, wherein the housing (101) is a cylinder with openings (1011) at two ends, the partition plate (105) is perpendicular to the central axis of the cylinder, and the opening (1011) of the upper mounting cavity (103) is provided with a heat dissipation module (400) serving as a lamp cover.