CN216591119U

CN216591119U - Novel LED bulb

Info

Publication number: CN216591119U
Application number: CN202122508862.3U
Authority: CN
Inventors: 韦永辉
Original assignee: Dongguan Santong Electric Appliance Co ltd
Current assignee: Dongguan Santong Electric Appliance Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-05-24
Anticipated expiration: 2031-10-19

Abstract

The utility model relates to the technical field of bulbs, in particular to a novel LED bulb. The novel LED bulb comprises a lamp cap, a heat dissipation shell, a light emitting part and a lower lamp shell; the heat dissipation shell is arranged below the lamp holder and comprises a heat dissipation cylinder and a plurality of heat dissipation fins, the top of a cavity in the heat dissipation cylinder is fixedly connected with the lamp holder, and the plurality of heat dissipation fins are arranged on the outer wall of the heat dissipation cylinder; the light emitting part comprises a circuit board, an LED lamp bead and an insulation protection sheet; the circuit board is arranged below the heat dissipation cylinder, and heat-conducting silicone grease is coated between the circuit board and the heat dissipation cylinder; the LED lamp beads are welded with the circuit board; the insulation protection sheet is arranged below the circuit board, two ends of the insulation protection sheet are respectively provided with a screw, and the screws are fixedly connected to the lamp holder; the lower lamp shell cover is fixedly connected with the heat dissipation cylinder. The LED bulb solves the problems that the existing LED bulb is low in heat dissipation efficiency, and an internal circuit board is not provided with protection measures.

Description

Novel LED bulb

Technical Field

The utility model relates to the technical field of bulbs, in particular to a novel LED bulb.

Background

The LED is a solid semiconductor device, can directly convert electricity into light, has less heat productivity, belongs to a cold light source, and has high energy conversion rate. Compared with the traditional illumination light source such as a fluorescent lamp and an incandescent lamp, the LED lamp has the advantages of high luminous efficiency, long service life, durability, energy conservation, environmental protection and the like, so more and more manufacturers are put into the development of various LED lamp applications.

The radiating effect of current LED bulb is not good, and LED lamp pearl can produce a large amount of heats at the during operation, and then improves the risk that LED lamp pearl burns out.

Therefore, it is necessary to provide a technical solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel LED bulb, and aims to solve the problems that the existing LED bulb is poor in heat dissipation effect, and LED lamp beads can generate a large amount of heat during working, so that the risk of burning out of the LED lamp beads is increased.

In order to achieve the above object, the present invention provides a novel LED bulb, comprising a lamp cap, a heat dissipation case, a light emitting portion and a lower lamp case, wherein:

the heat dissipation shell is arranged below the lamp holder and comprises a heat dissipation cylinder body and a plurality of heat dissipation fins, a cavity with an opening at the top is arranged in the heat dissipation cylinder body, the top of the cavity is fixedly connected with the lamp holder, and the plurality of heat dissipation fins are arranged circumferentially and are arranged on the outer wall of the heat dissipation cylinder body; the light emitting part comprises a circuit board, an LED lamp bead and an insulation protection sheet; the circuit board is arranged below the heat dissipation cylinder, and heat-conducting silicone grease is coated between the circuit board and the heat dissipation cylinder; the LED lamp beads are arranged below the circuit board and are welded with the circuit board; the insulating protective sheet is arranged below the circuit board, two ends of the insulating protective sheet are respectively provided with a screw rod, and the screw rods sequentially penetrate through the circuit board and the heat dissipation cylinder and are fixedly connected to the lamp holder; the lower lamp shell covers the light-emitting part and is fixedly connected with the heat-radiating cylinder.

More specifically, the top of the heat dissipation barrel is provided with an insulating plate, and the insulating plate is fixedly connected with the lamp cap.

More specifically, the bottom of heat dissipation barrel is equipped with the collar, the inside of collar is equipped with the internal thread, the outside of lamp body is equipped with the external screw thread with this internal thread looks adaptation down, down the lamp body with collar threaded connection.

More specifically, the heat dissipation cylinder and the heat dissipation fins are made of aluminum materials.

More specifically, a layer of reflective sheet is arranged at the bottom of the insulation protection sheet.

More specifically, the lower lamp housing is transparent, a light shielding film is attached to the outer wall of the lower lamp housing, the light shielding film is a light-tight film or a semi-light-tight film, and a plurality of hole sites for light to penetrate out are formed in the light shielding film.

More specifically, the bottom of the shading film is provided with a light gathering hole.

The novel LED bulb has the technical effects that:

1. this application adopts the design of heat conduction silicone grease and heat dissipation shell, and the heat that LED lamp pearl and circuit board work produced all transmits to the heat dissipation barrel under the effect of heat conduction silicone grease on, and heat radiation fins's design has increased the heat exchange area of heat dissipation shell with the air, and then can dispel the heat with the heat fast, avoids the inside high temperature of bulb and leads to circuit board or LED lamp pearl to damage.

2. This application adopts the design of insulating protection piece, and insulating protection piece plays insulating protection to the solder joint on the circuit board, has improved the LED bulb, especially regards as the security of the LED bulb of power with high voltage, and sets up the reflector plate through the bottom at insulating protection piece, makes the light that LED lamp pearl upwards sent can reflect downwards, and then improves light utilization ratio.

Drawings

Fig. 1 is a schematic cross-sectional view of a novel LED bulb according to the present invention;

fig. 2 is a schematic structural diagram of a novel LED bulb according to the present invention.

The labels in the figure are:

1-lamp holder; 2-a heat dissipation shell; 3-a light-emitting section; 4-lower lamp shell;

201-heat dissipation cylinder; 202-heat dissipation fins; 203-a cavity; 204, an insulating plate;

301-a circuit board; 302-LED lamp beads; 303-insulating protective sheet; 304-heat-conducting silicone grease; 305-a screw; 306-a mounting ring;

401 — a light-shielding film; 402 hole sites; 403-light gathering hole;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the embodiments of the present invention, it should be understood that the orientations and positional relationships indicated by the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are based on the orientations and positional relationships shown in the drawings and are only for convenience in describing the embodiments of the present invention and for simplicity in description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In order to more clearly illustrate the technical solution of the present invention, a preferred embodiment is provided below, and specifically refer to fig. 1 to 2. The utility model provides a novel LED bulb, includes lamp holder 1, heat dissipation shell 2, illuminating part 3 and lower lamp body 4, wherein:

the heat dissipation shell 2 is arranged below the lamp cap 1 and comprises a heat dissipation cylinder 201 and a plurality of heat dissipation fins 202, a cavity 203 with an opening at the top is formed in the heat dissipation cylinder 201, the top of the cavity is fixedly connected with the lamp cap 1, and the plurality of heat dissipation fins 202 are arranged circumferentially and are arranged on the outer wall of the heat dissipation cylinder 201; the light emitting part 3 comprises a circuit board 301, an LED lamp bead 302 and an insulation protection sheet 303; the circuit board 301 is arranged below the heat dissipation cylinder 201, and heat-conducting silicone grease 304 is coated between the circuit board 301 and the heat dissipation cylinder 201; the LED lamp beads 302 are arranged below the circuit board 301 and are welded with the circuit board 301; the insulating protection sheet 303 is arranged below the circuit board 301, two ends of the insulating protection sheet are respectively provided with a screw 305, and the screws 305 sequentially penetrate through the circuit board 301 and the heat dissipation cylinder 201 and are fixedly connected to the lamp holder 1; the lower lamp housing 4 covers the light-emitting portion 3 and is fixedly connected to the heat-dissipating cylinder 201.

In this embodiment, through heat conduction silicone grease 304 with the design of heat dissipation shell 2, LED lamp pearl 302 with the heat that circuit board 301 work produced all is in heat conduction silicone grease 304's effect down transmits to on the heat dissipation barrel 201, heat radiating fin 202's design has increased the heat exchange area of heat dissipation shell 2 and air, and then can dispel the heat fast, avoids the inside high temperature of bulb to lead to circuit board 301 or LED lamp pearl 302 damages.

Further, in this embodiment, through the design of the insulating protection sheet 303, the insulating protection sheet 303 plays a role of mutual isolation and protection for a plurality of solder joints on the circuit board 301, so as to improve the safety of the LED bulb, especially the LED bulb using high voltage as a power supply. Specifically, an insulating rubber ring can be arranged between the screw rod and the circuit board to insulate the screw rod and the circuit board from each other, so that the safety is further improved.

As a preferable scheme of this embodiment, the heat dissipation cylinder 201 and the heat dissipation fins 202 are both made of aluminum material. It should be noted that the heat dissipation cylinder 201 and the heat dissipation fins 202 may also be made of copper or other materials with strong heat conductivity.

As a preferable scheme of this embodiment, an insulating plate 204 is disposed on the top of the heat-dissipating cylinder 201, and the insulating plate 204 is fixedly connected to the lamp cap 1. The heat dissipation barrel 201 and the heat dissipation fins 202 are made of metal materials with good heat conductivity, such as aluminum or copper, and the design of the insulation plate 204 prevents the heat dissipation barrel 201 from interfering with electrical components inside the lamp cap 1.

As a preferable scheme of this embodiment, a mounting ring 306 is disposed at the bottom of the heat dissipation cylinder 201, an internal thread is disposed inside the mounting ring 306, an external thread adapted to the internal thread is disposed outside the lower lamp housing 4, and the lower lamp housing 4 is in threaded connection with the mounting ring 306.

As a preferable solution of this embodiment, a reflective sheet is disposed at the bottom of the insulating protection sheet 303. The design of reflector plate makes the light that LED lamp pearl 302 upwards sent can reflect downwards, and then improves light utilization ratio.

As a preferable scheme of this embodiment, the lower lamp housing 4 is transparent, a light shielding film 401 is attached to an outer wall of the lower lamp housing, the light shielding film 401 is a light-impermeable film or a semi-light-permeable film, and a plurality of holes 402 for light to pass through are formed in the light shielding film 401. Further, the opaque film may be selected from, but not limited to, a paint film, an aluminum film; the translucent film may be selected from, but not limited to, PE films. Specifically, hole site 402 on the photomask 401 adopts laser engraving to form, and it can be shape such as circular, square, by the light that hole site 402 jetted out can make to have certain aesthetic property in the usage space, and light is soft, and the eye is difficult for receiving the stimulus when the LED bulb of direct vision.

In a preferred embodiment of the present invention, the light shielding film 401 has a light-gathering hole 403 formed at a bottom thereof, and the light-gathering hole 403 is designed to ensure a sufficient brightness level in the use space.

According to the novel LED bulb, through reasonable structural arrangement, the problems that the existing LED bulb is poor in heat dissipation effect, and LED lamp beads can generate a large amount of heat during working, so that the risk of burning out of the LED lamp beads is increased are solved.

The above description is only exemplary of the present invention, and the structure is not limited to the above-mentioned shapes, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel LED bulb is characterized in that: including lamp holder, heat dissipation shell, illuminating part and lower lamp body, wherein:

the heat dissipation shell is arranged below the lamp cap and comprises a heat dissipation cylinder body and a plurality of heat dissipation fins, a cavity with an open top is arranged in the heat dissipation cylinder body, the top of the cavity is fixedly connected with the lamp cap, and the plurality of heat dissipation fins are arranged circumferentially and are arranged on the outer wall of the heat dissipation cylinder body; the light emitting part comprises a circuit board, an LED lamp bead and an insulation protection sheet; the circuit board is arranged below the heat dissipation cylinder, and heat-conducting silicone grease is coated between the circuit board and the heat dissipation cylinder; the LED lamp beads are arranged below the circuit board and are welded with the circuit board; the insulating protective sheet is arranged below the circuit board, two ends of the insulating protective sheet are respectively provided with a screw rod, and the screw rods sequentially penetrate through the circuit board and the heat dissipation cylinder and are fixedly connected to the lamp holder; the lower lamp shell covers the light-emitting part and is fixedly connected with the heat-radiating cylinder.

2. The novel LED bulb as claimed in claim 1, wherein: the top of the heat dissipation barrel is provided with an insulating plate, and the insulating plate is fixedly connected with the lamp holder.

3. The novel LED bulb as claimed in claim 1, wherein: the bottom of the heat dissipation barrel is provided with a mounting ring, an internal thread is arranged inside the mounting ring, an external thread matched with the internal thread is arranged outside the lower lamp shell, and the lower lamp shell is in threaded connection with the mounting ring.

4. The novel LED bulb as claimed in claim 1, wherein: the heat dissipation cylinder body and the heat dissipation fins are made of aluminum materials.

5. The novel LED bulb as claimed in claim 1, wherein: and a layer of reflecting sheet is arranged at the bottom of the insulation protection sheet.

6. The novel LED bulb as claimed in claim 1, wherein: the lower lamp shell is transparent, a shading film is attached to the outer wall of the lower lamp shell, the shading film is a light-tight film or a semi-light-tight film, and a plurality of hole sites for light rays to penetrate out are formed in the shading film.

7. The novel LED bulb as claimed in claim 6, wherein: the bottom of the shading film is provided with a light gathering hole.