CN215862943U

CN215862943U - LED lamp pearl of long service life

Info

Publication number: CN215862943U
Application number: CN202120513908.8U
Authority: CN
Inventors: 柳欢
Original assignee: Guangdong Dezhen Light Source Technology Co ltd
Current assignee: Guangdong Dezhen Light Source Technology Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2022-02-18
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a long-service-life LED lamp bead which comprises a mounting seat, wherein a heat sink is fixedly connected to the inner middle part of the top end of the mounting seat, a heat dissipation cavity is arranged in the middle part of the mounting seat, an aluminum heat dissipation block is arranged at the upper part in the heat dissipation cavity, heat dissipation plates are uniformly distributed at the lower ends of the aluminum heat dissipation block, small holes are uniformly distributed in the heat dissipation plates, heat dissipation holes are uniformly distributed in the periphery of the upper part of the heat dissipation cavity, a dust screen is arranged inside one end, far away from the heat dissipation cavity, of each heat dissipation hole, and the lower ends of the heat dissipation plates penetrate through the bottom end of the mounting seat and extend. According to the utility model, heat generated by the LED chip is conducted to the aluminum radiating block by the heat sink, the aluminum radiating block conducts the heat to the upper surface of the radiating plate, the small holes uniformly distributed on the radiating plate can quickly disperse the heat into the radiating cavity, hot gas flows out of the radiating holes, the LED chip is prevented from aging due to high temperature, the service life of the LED chip is prolonged, and the LED chip is worthy of great popularization.

Description

LED lamp pearl of long service life

Technical Field

The utility model relates to the field of lighting equipment, in particular to an LED lamp bead with long service life.

Background

The LED lamp beads are English abbreviations of light emitting diodes, called LEDs for short, and are popular names, the development of the LED lamp beads is very rapid along with the improvement of economic life of people, and the LED lamp beads are long in service time and high in brightness and are accepted by most people.

When the LED lamp beads are used, the LED lamp beads are directly mounted on the circuit board, a large amount of heat can be generated when the LED lamp beads work, however, the LED chip is easy to age at high temperature, the service life of the LED lamp beads is influenced, and therefore the heat dissipation of the LED lamp beads is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an LED lamp bead with long service life.

In order to achieve the purpose, the utility model adopts the following technical scheme: a long-service-life LED lamp bead comprises a mounting seat, wherein a heat sink is fixedly connected to the inner middle part of the top end of the mounting seat, an LED chip is fixedly connected to the middle part of the top end of the heat sink, a fluorescent layer is arranged on the periphery of the upper end of the LED chip, a protection cavity is arranged on the periphery of the upper end of the fluorescent layer and is arranged in the inner middle part of a lamp bead body, the lower end of the lamp bead body is fixedly connected to the periphery of the middle part of the upper end of the mounting seat, a circuit board is fixedly connected to the periphery of the upper part of the mounting seat, a positive terminal is electrically connected to one side of the circuit board, a negative terminal is electrically connected to the other side of the circuit board, a heat dissipation cavity is arranged in the middle part of the mounting seat, an aluminum heat dissipation block is arranged on the upper part of the heat dissipation cavity, heat dissipation plates are uniformly distributed at the lower end of the aluminum heat dissipation block, small holes are uniformly distributed on the heat dissipation plate, and heat dissipation holes are uniformly distributed at the periphery of the upper part of the heat dissipation cavity, the inside dust screen that all is provided with of one end that the heat dissipation chamber was kept away from to the louvre, the lower extreme of heating panel all runs through the bottom of mount pad and extends, heat dissipation chamber (6) bottom middle part is provided with inlet port (18).

As a further description of the above technical solution:

the periphery of the lower end of the fluorescent layer is fixedly connected with a reflecting plate, and the reflecting plate is arranged at the lower part in the protective cavity.

As a further description of the above technical solution:

and nitrogen is arranged in the protection cavity.

As a further description of the above technical solution:

the inner periphery of the lower end of the lamp bead body is fixedly connected with a sealing ring, and the lower end of the sealing ring is fixedly connected to the upper end of the mounting seat.

As a further description of the above technical solution:

the one end fixed connection that the circuit board was kept away from to anodal terminal is inside the left side of mount pad upper end, anodal terminal and LED chip electric connection.

As a further description of the above technical solution:

one end of the negative terminal far away from the circuit board is fixedly connected to the inner portion of the left side of the upper end of the mounting seat, and the negative terminal is electrically connected with the LED chip.

As a further description of the above technical solution:

the upper end of the aluminum radiating block is fixedly connected to the lower end of the heat sink.

The utility model has the following beneficial effects:

according to the LED heat dissipation structure, firstly, when an LED chip works, generated heat is conducted to the aluminum heat dissipation block by the heat sink, the aluminum heat dissipation block conducts the heat to the upper surface of the heat dissipation plate, small holes uniformly distributed in the upper surface of the heat dissipation plate can quickly disperse the heat into the heat dissipation cavity, a temperature difference is formed between the inner part of the heat dissipation cavity and the outer part of the mounting seat, air enters the heat dissipation cavity from the air inlet at this time, hot air flows out of the heat dissipation holes, as long as heat exists in the heat dissipation cavity, the air can circulate to cool the heat dissipation plate and the aluminum heat dissipation block, so that the heat sink can take away the heat on the LED chip, the LED chip is prevented from being aged due to high temperature, the service life of the LED chip is guaranteed, and the LED heat dissipation structure is worthy of great popularization.

Drawings

FIG. 1 is a perspective view of an LED lamp bead with a long service life according to the present invention;

FIG. 2 is a schematic cross-sectional structural view of an LED lamp bead with a long service life, which is provided by the utility model;

fig. 3 is a perspective view of an aluminum heat dissipation plate of an LED lamp bead with a long service life according to the present invention.

Illustration of the drawings:

1. a positive terminal; 2. a mounting seat; 3. a lamp bead body; 4. a negative terminal; 5. heat dissipation holes; 6. A heat dissipation cavity; 7. a dust screen; 8. an aluminum heat dissipation block; 9. a reflective plate; 10. a fluorescent layer; 11. a protection cavity; 12. a small hole; 13. an LED chip; 14. a heat sink; 15. a seal ring; 16. a circuit board; 17. a heat dissipation plate; 18. and (4) air inlet holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a long-service-life LED lamp bead comprises a mounting seat 2, wherein a heat sink 14 is fixedly connected to the inner middle part of the top end of the mounting seat 2, an LED chip 13 is fixedly connected to the middle part of the top end of the heat sink 14, a fluorescent layer 10 is arranged on the periphery of the upper end of the LED chip 13, a protection cavity 11 is arranged on the periphery of the upper end of the fluorescent layer 10, the fluorescent layer 10 on the periphery of the LED chip 13 can enable light emitted by the LED chip 13 to be emitted, the protection cavity 11 is arranged on the inner middle part of a lamp bead body 3, normal and good use of the LED chip 13 can be guaranteed through arrangement of nitrogen inside the lamp bead body 3 and the protection cavity 11, the lower end of the lamp bead body 3 is fixedly connected to the periphery of the middle part of the upper end of the mounting seat 2, a circuit board 16 is fixedly connected to the periphery of the upper part of the mounting seat 2, one side of the circuit board 16 is electrically connected with an anode terminal 1, the other side of the circuit board 16 is electrically connected with a cathode terminal 4, the circuit board 16 enables the LED chip 13 to be electrified and emit light through the anode terminal 1 and the cathode terminal 4, the middle part in the mounting seat 2 is provided with a heat dissipation cavity 6, the upper part in the heat dissipation cavity 6 is provided with an aluminum heat dissipation block 8, the lower end of the aluminum heat dissipation block 8 is uniformly distributed with a heat dissipation plate 17, small holes 12 are uniformly distributed on the heat dissipation plate 17, heat dissipation holes 5 are uniformly distributed on the periphery of the upper part of the heat dissipation cavity 6, the inner part of one end of each heat dissipation hole 5 far away from the heat dissipation cavity 6 is provided with a dustproof net 7, the lower end of each heat dissipation plate 17 penetrates through the bottom end of the mounting seat 2 and extends, when an LED chip 13 emits light, heat is conducted to the inner part of the aluminum heat dissipation block 8 by a heat sink 14, at this time, the aluminum heat dissipation block 8 conducts the heat to the upper part of the heat dissipation plate 17, the small holes 12 are uniformly distributed on the upper part of the heat dissipation plate 17, the heat can be uniformly dissipated in the heat dissipation cavity 6, the heat dissipation holes generate temperature difference with the outside, air enters from an air inlet hole 18 to the inner part of the heat dissipation cavity 6, the heat dissipation cavity 6 flows out from the 5, the heat is successfully dissipated, so that the problem that the service life of the LED chip 13 is shortened due to overhigh temperature can be solved when the LED chip 13 works, the service life of the LED chip 13 is effectively prolonged, the LED lamp bead can be used for a long time, and the normal work of the LED lamp bead is guaranteed.

Periphery fixedly connected with reflecting plate 9 of fluorescent layer 10 lower extreme, reflecting plate 9 sets up the lower part in protection cavity 11, light can penetrate the normal lighting of guaranteeing LED lamp pearl through setting up of reflecting plate 9, be provided with nitrogen gas in the protection cavity 11, the interior week fixedly connected with sealing washer 15 of 3 lower extremes of lamp pearl body, sealing washer 15 guarantees the sealing between lamp pearl body 3 and mount pad 2, the lower extreme fixed connection of sealing washer 15 is in the upper end of mount pad 2, the one end fixed connection that circuit board 16 was kept away from to anodal terminal 1 is inside on the left of mount pad 2 upper end, anodal terminal 1 and LED chip 13 electric connection, the one end fixed connection that circuit board 16 was kept away from to negative terminal 4 is inside on the left of mount pad 2 upper end, negative terminal 4 and LED chip 13 electric connection, the upper end fixed connection of aluminium radiating block 8 is at the lower extreme of

heat sink

14, 6 bottom middle parts in heat dissipation cavity are provided with inlet port 18.

The working principle is as follows: when the LED lamp bead is used, firstly, the circuit board 16 enables the LED chip 13 to be electrified and emit light through the positive terminal 1 and the negative terminal 4, at this time, the fluorescent layer 10 at the periphery of the LED chip 13 can enable the light emitted by the LED chip 13 to be emitted, light can be emitted through the arrangement of the reflecting plate 9 to ensure the normal illumination of the LED lamp bead, the normal and good use of the LED chip 13 can be ensured through the arrangement of nitrogen inside the lamp bead body 3 and the protection cavity 11, the LED chip 13 can generate heat when emitting light, the heat is conducted to the inside of the aluminum radiating block 8 by the heat sink 14, at this time, the aluminum radiating block 8 conducts the heat to the upper surface of the radiating plate 17, small holes 12 are uniformly distributed on the radiating plate 17 to enable the heat to be uniformly emitted inside the radiating cavity 6, at this time, the heat and the outside generate temperature difference inside the radiating cavity 6 are provided with air, and the air enters the inside of the radiating cavity 6 from the air inlet hole 18, the heat inside the heat dissipation cavity 6 all flows out from the heat dissipation holes 5, the heat successfully dissipates, can guarantee that the problem that the service life of the LED chip 13 is shortened due to overhigh temperature can be avoided when the LED chip 13 works, the service life of the LED chip 13 is effectively prolonged, the LED lamp beads can be used for a long time, the normal work of the LED lamp beads is guaranteed, and the LED lamp beads are worth widely popularizing.

Finally, it should be noted that: 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 or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a long service life's LED lamp pearl, includes mount pad (2), its characterized in that: the LED lamp is characterized in that a heat sink (14) is fixedly connected to the inner middle of the top end of the mounting seat (2), an LED chip (13) is fixedly connected to the middle of the top end of the heat sink (14), a fluorescent layer (10) is arranged on the periphery of the upper end of the LED chip (13), a protection cavity (11) is arranged on the periphery of the upper end of the fluorescent layer (10), the protection cavity (11) is arranged in the inner middle of the lamp bead body (3), the lower end of the lamp bead body (3) is fixedly connected to the periphery of the middle of the upper end of the mounting seat (2), a circuit board (16) is fixedly connected to the periphery of the upper portion of the mounting seat (2), a positive terminal (1) is electrically connected to one side of the circuit board (16), a negative terminal (4) is electrically connected to the other side of the circuit board (16), a heat dissipation cavity (6) is arranged in the middle of the mounting seat (2), and an aluminum heat dissipation block (8) is arranged on the upper portion in the heat dissipation cavity (6), the lower extreme evenly distributed of aluminium system radiating block (8) has heating panel (17), evenly distributed has aperture (12) on heating panel (17), the upper portion periphery evenly distributed of heat dissipation chamber (6) has louvre (5), louvre (5) are kept away from the inside dust screen (7) that all is provided with of one end in heat dissipation chamber (6), the lower extreme of heating panel (17) all runs through the bottom of mount pad (2) and extends, heat dissipation chamber (6) bottom middle part is provided with inlet port (18).

2. The LED lamp bead with long service life according to claim 1, characterized in that: the periphery of the lower end of the fluorescent layer (10) is fixedly connected with a reflecting plate (9), and the reflecting plate (9) is arranged at the lower part in the protective cavity (11).

3. The LED lamp bead with long service life according to claim 1, characterized in that: and nitrogen is arranged in the protection cavity (11).

4. The LED lamp bead with long service life according to claim 1, characterized in that: the lamp bead is characterized in that a sealing ring (15) is fixedly connected to the inner periphery of the lower end of the lamp bead body (3), and the lower end of the sealing ring (15) is fixedly connected to the upper end of the mounting seat (2).

5. The LED lamp bead with long service life according to claim 1, characterized in that: one end of the positive terminal (1), which is far away from the circuit board (16), is fixedly connected to the inner portion of the left side of the upper end of the mounting seat (2), and the positive terminal (1) is electrically connected with the LED chip (13).

6. The LED lamp bead with long service life according to claim 1, characterized in that: one end of the negative terminal (4) far away from the circuit board (16) is fixedly connected to the inner portion of the left side of the upper end of the mounting seat (2), and the negative terminal (4) is electrically connected with the LED chip (13).

7. The LED lamp bead with long service life according to claim 1, characterized in that: the upper end of the aluminum radiating block (8) is fixedly connected with the lower end of the heat sink (14).