CN211371958U

CN211371958U - Ball bulb lamp

Info

Publication number: CN211371958U
Application number: CN201921741889.3U
Authority: CN
Inventors: 廖卿跃
Original assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Current assignee: Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-08-28
Anticipated expiration: 2029-10-17

Abstract

The utility model belongs to the technical field of the illumination lamps and lanterns, especially, relate to a ball bubble lamp, the ball bubble lamp includes: a lamp cap; one end of the heat dissipation piece is connected to the lamp cap, an accommodating cavity is formed in the heat dissipation piece in an enclosing mode, and a microstructure used for increasing the heat dissipation area of the heat dissipation piece is arranged on the outer surface of the heat dissipation piece; the light source assembly and the power supply assembly are arranged in the accommodating cavity; and the bulb shell is connected with the heat radiating piece. The embodiment of the utility model provides a ball bubble lamp because the surface of radiating piece is equipped with the micro-structure, the micro-structure can increase the heat radiating surface area of radiating piece, is favorable to thermal diffusion for ball bubble lamp has better radiating effect, has prolonged the life of ball bubble lamp.

Description

Ball bulb lamp

Technical Field

The utility model belongs to the technical field of the illumination lamps and lanterns, especially, relate to a ball bubble lamp.

Background

The LED lamp gradually replaces the traditional high-voltage sodium lamp by virtue of the advantages of high luminous efficiency, low power consumption, no need of high voltage, high safety and the like, and various types of LED lamps are widely applied to various illumination fields. The LED lamp can generate a large amount of heat when emitting light, and the brightness and the service life of the LED lamp can be seriously influenced by the high temperature of more than 120 ℃, and the service life of a circuit board connected with the LED lamp can also be influenced. Along with the development of LED lamp technology and the demand that the consumer experienced, LED lamp product is developing towards miniaturized direction, like LED ball bubble lamp, it is designed more compact and small and exquisite, nevertheless because the heat dissipation design is not good, the radiating effect is relatively poor, can influence the life of ball bubble lamp after the heat piles up.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball bubble lamp aims at solving the ball bubble lamp radiating effect among the prior art relatively poor, and the heat piles up the technical problem that the back influences life.

In order to achieve the above object, the utility model adopts the following technical scheme: a bulb lamp comprising:

a lamp cap;

one end of the heat dissipation piece is connected to the lamp cap, an accommodating cavity is formed in the heat dissipation piece in an enclosing mode, and a microstructure used for increasing the heat dissipation area of the heat dissipation piece is arranged on the outer surface of the heat dissipation piece;

the light source assembly and the power supply assembly are arranged in the accommodating cavity;

and the bulb shell is connected with the heat radiating piece.

Further, the microstructure is a plurality of projections and/or grooves.

Further, the cross section of the plurality of protrusions or grooves is at least one of a circle, an ellipse, a polygon, a cross, a meter-shaped, a star-shaped or an L-shaped cross section, and the cross section is parallel to the thickness direction of the heat dissipation member.

Further, the microstructure is a plurality of annular raised lines parallel to each other, or the microstructure is a spiral stripe protrusion.

Further, the arrangement density of the microstructures is gradually increased from one end far away from the light source assembly to one end close to the light source assembly.

Further, the heat dissipation part is an injection molding part, and the micro structure is arranged on the outer surface of the injection molding part.

Furthermore, the heat dissipation member comprises an injection molding outer shell and a metal inner shell, the metal inner shell is fixedly embedded in the injection molding outer shell, one end of the injection molding outer shell is connected with the lamp cap, and the microstructure is formed on the surface of the injection molding outer shell.

Furthermore, the light source assembly comprises a light source plate, the power supply assembly comprises a drive plate, the drive plate is vertically arranged with the light source plate, one end of the drive plate, which is close to the light source plate, is extended to form a plurality of insertion parts, the light source plate corresponds to the insertion parts, insertion holes of the adaptation are respectively formed in the positions of the insertion parts, the light source plate is arranged in two of the insertion holes, elastic clamping pieces are respectively arranged on the peripheral sides of the insertion holes, and the corresponding insertion parts penetrate through the corresponding insertion holes and are clamped by the elastic clamping pieces to realize the electric connection between the light source plate and the drive plate.

Furthermore, the inner side wall of the metal inner shell, which is close to one end of the bulb shell, is recessed outwards to form an annular step, the light source plate is a circular plate, the bottom surface of the light source plate abuts against the bottom surface of the annular step, and the circumferential side wall of the light source plate abuts against the side surface of the annular step.

Furthermore, a mutually matched screwing structure is arranged between the bulb shell and the injection molding shell, and the bulb shell is connected with the injection molding shell through the screwing structure; the lower end of the metal inner shell is provided with a threaded part exposed relative to the injection molding outer shell, and the metal inner shell is in threaded connection with the lamp holder through the threaded part; the bottom of the lamp holder is provided with an eye plate, and one end of the eye plate is connected with the conductive connecting piece on the driving board so as to realize conduction with the driving board.

The utility model has the advantages that: the utility model discloses a bulb lamp, because the surface of radiating piece is equipped with the micro-structure, the micro-structure can increase the heat radiating surface area of radiating piece, is favorable to thermal diffusion for bulb lamp has better radiating effect, has prolonged the life of bulb lamp.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a longitudinal sectional view of a bulb lamp according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a first schematic diagram illustrating an explosion of the bulb lamp of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 3;

fig. 5 is an exploded view of the bulb lamp of fig. 1;

FIG. 6 is a longitudinal sectional view of another embodiment of a bulb lamp;

FIG. 7 is an enlarged view of portion C of FIG. 6;

fig. 8 is an exploded schematic view of a bulb lamp according to yet another embodiment;

FIG. 9 is an enlarged view of portion D of FIG. 8;

fig. 10 is an exploded view of the driving board and the light source board of fig. 5.

Wherein, in the figures, the respective reference numerals:

1-a bulb shell; 2-a light source plate; 3-a drive plate; 4-a heat sink; 5-a lamp holder; 6-eye tablets; 21-LED lamp beads; 22-a resilient clamp; 31-a plug-in electrode; 32-a positioning element; 34-a conductive connection; 41-inner metal shell; 42-injection molding the housing; 410-an annular step; 420-microstructure; 421-annular groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and 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.

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 limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in FIGS. 1-2, the embodiment of the utility model provides a bulb lamp, including lamp holder 5, heat-radiating piece 4, light source subassembly, power supply module and lamp bulb shell 1. The upper end and the lower end of the heat dissipation part 4 are both opened and are in a cylindrical structure with a large upper part and a small lower part; the bulb shell 1 is connected to the heat sink 4, for example, by means of a snap or screw connection to one end of the heat sink 4. The bulb shell 1 is a half-bulb shell structure with an opening at the bottom, and can be made of transparent or semitransparent insulating materials. The other end of the heat dissipation member 4 is connected to the lamp cap 5, a containing cavity is defined in the heat dissipation member 4, a microstructure 420 for increasing the heat dissipation area is arranged on the surface of the heat dissipation member 4, and the heat dissipation performance of the bulb lamp can be improved due to the arrangement of the microstructure 420. The light source assembly and the power supply assembly are arranged in the accommodating cavity of the heat radiating member 4, and the bulb shell 1 is connected with the heat radiating member 4.

According to the bulb lamp provided by the embodiment, the micro structures 420 are arranged on the outer surfaces of the radiating pieces 4, the radiating surface areas of the radiating pieces 4 can be increased through the micro structures 420, heat diffusion is facilitated, the bulb lamp has a better radiating effect, and the service life of the bulb lamp is prolonged.

In an embodiment, the microstructures 420 disposed on the surface of the heat sink 4 are a plurality of protrusions or grooves, as shown in fig. 2 to 4, the microstructures 420 are a plurality of grooves disposed on the surface of the heat sink 4. Compared with the lamp body of the existing product, the lamp body of the existing product is structurally designed with the radiating fins, and under the condition that the outer diameters of the lamp bodies are the same, the radiating piece 4 is provided with the micro structure 420, so that the local wall thickness of an injection molding piece can be thinner, the thermal resistance is reduced, and the radiating of the bulb lamp is more facilitated. That is to say, being equipped with micro-structure 420 at the surface of radiating piece 4, not only can increasing radiating area of radiating piece 4, improving the heat dispersion of ball bubble lamp, increasing the life of product, still can vacate more spaces for radiating piece inside to make drive assembly have sufficient space to place.

In an embodiment, the shape of the cross section of the plurality of grooves or the plurality of protrusions may be at least one of a circle, an ellipse, a polygon, a cross, a meter-shaped, a star-shaped or an L-shaped cross section, the cross section is parallel to the thickness direction of the heat sink 4, the distribution of the microstructures 420 may be regularly arranged or randomly arranged, and the area range and the arrangement density of the arrangement may be set according to actual heat dissipation requirements. For example, as shown in fig. 3 and 4, the outer surface of the heat sink 4 is provided with a plurality of grooves each having a circular cross section. In some embodiments, the cross-sectional shape of the plurality of grooves may also be at least one of an ellipse, a square, a cross, a meter shape, a star shape, or an L shape, and may also be a polygon such as a diamond shape.

In one embodiment, as shown in fig. 6 and 7, the microstructures 420 on the heat dissipation element 4 are a plurality of annular convex strips parallel to each other, and annular grooves are respectively formed between adjacent annular convex strips. Alternatively, as shown in fig. 8 and 9, the microstructure 420 is a spiral stripe protrusion, and annular grooves 421 are formed between adjacent stripes.

In one embodiment, the distribution density of the microstructures 420 is gradually increased from the end away from the light source module to the end close to the light source module. That is, the microstructures 420 may be disposed mainly around the light source module, which may improve heat dissipation performance.

In one embodiment, the heat sink 4 may be of a metal-in-plastic structure. As shown in fig. 1 and 2, the heat sink 4 includes an injection molded outer shell 42 and a metal inner shell 41, the metal inner shell 41 is embedded in the injection molded outer shell 42, one end of the injection molded outer shell 42 is connected to the lamp cap 5, and the microstructure 420 is formed on the outer surface of the injection molded outer shell 42. The metal inner shell 41 may be an aluminum shell, that is, the heat sink 4 is a plastic-clad aluminum structure, which is beneficial for heat dissipation.

In an embodiment, the heat sink 4 may not be provided with an inner layer structure (no metal inner shell 41 is needed), i.e. the heat sink 4 is an injection molded part, and the heat of the light source board 2 is dissipated to the outside through the injection molded part.

In an embodiment, as shown in fig. 1 and 5, the light source assembly includes a light source board 2, the driving assembly includes a driving board 3, the driving board 3 is vertically disposed with the light source board 2, the driving board 3 is vertically disposed in the heat dissipation member 4, and the light source board 2 is horizontally disposed. Drive plate 3 is close to the one end extension of light source board 2 and is formed with a plurality of grafting portions, and the spliced eye of adaptation is seted up respectively to the position that light source board 2 corresponds each grafting portion, and light source board 2 is equipped with elasticity holder 22 respectively in the week side of two spliced eyes wherein, and corresponding grafting portion wears to establish corresponding spliced eye and is pressed from both sides tightly by elasticity holder 22, so can realize the electricity between light source board 2 and the drive plate 3 and be connected.

As shown in fig. 1, fig. 3 and fig. 10, three plugging portions may be disposed at the top of the light source plate 2, the three plugging portions are disposed side by side at intervals, two of the plugging portions are plugging electrodes 31, another plugging portion plays a role in assisting positioning of the positioning element 32, the light source plate 2 is provided with plugging holes corresponding to the plugging portions, the peripheral sides of the two plugging holes corresponding to the two plugging electrodes 31 are provided with elastic clamping members 22, the two plugging electrodes 31 are clamped by the corresponding elastic clamping members 22 after being inserted into the corresponding plugging holes, and thus the driving plate 3 and the light source plate 2 are conducted.

As shown in fig. 1 and 10, the head of each plugging portion may be provided with a guiding inclined surface, for example, the head of each plugging portion is symmetrically provided with guiding inclined surfaces along both sides of the width direction, and the head of each plugging portion forms an arrow-like structure, which is favorable for plugging operation. The top surface of the light source plate 2 can be provided with a plurality of LED lamp beads 21, and the LED lamp beads 21 are uniformly arranged on the top surface of the light source plate 2 at intervals; elastic clamping member 22 can adopt the sheet metal component, this sheet metal component welded fastening is in the top surface of light source board 2, the position symmetry that the sheet metal component corresponds the spliced eye is equipped with two elastic clamping pieces, the clearance has between these two elastic clamping pieces, the width in this clearance is less than the width of grafting electrode 31, stretch out in the top surface of light source board 2 after grafting electrode 31 passes the spliced eye, later insert again between two elastic clamping pieces, so two elastic clamping pieces press from both sides grafting electrode 31 tightly, and then realize the electricity between light source board 2 and the drive plate 3 and be connected.

As shown in fig. 1, the heat sink 4 includes an injection molding outer shell 42 and a metal inner shell 41, two opposite sides of the metal inner shell 41 may be symmetrically provided with slots, openings of the slots on the two sides are arranged oppositely, and two sides of the drive board 3 are respectively inserted into the corresponding slots, so as to assemble the drive board 3 in the heat sink 4.

In one embodiment, as shown in fig. 1 and 3, an inner side wall of the metal inner shell 41 near one end of the lamp bulb shell 1 is recessed outward to form an annular step 410, the light source plate 2 is a circular plate, a bottom surface of the light source plate 2 abuts against a bottom surface of the annular step 410, and a circumferential side wall of the light source plate 2 abuts against a side surface of the annular step 410. The light source plate 2 is tightly clamped in the metal inner shell 41, and the light source plate 2 is pressed into the metal inner shell 41 during installation, so that the bottom surface of the light source plate 2 is abutted against the bottom surface of the annular step 410, and the periphery of the light source plate 2 can be further fastened on the annular step 410 through a rivet pressing piece such as a rivet pressing screw.

In one embodiment, as shown in fig. 1 and 5, a mutually matched screwing structure is provided between the lamp bulb shell 1 and the injection molded outer shell 42, and the lamp bulb shell 1 is connected with the injection molded outer shell 42 through the screwing structure; the lower end of the inner metal shell 41 has a threaded portion exposed relative to the outer injection molded shell 42, and the inner wall of the lamp cap 5 is correspondingly provided with a matched inner thread, so that the inner metal shell 41 is in threaded connection with the lamp cap 5 through the threaded portion. It is understood that other connection structures may be adopted between the lamp bulb 1 and the injection-molded housing 42, for example, mutually-matched snap structures are adopted, the two structures are assembled and fixed through the snap structures, and a matched snap structure is arranged between the outer wall of the bottom of the lamp bulb 1 and the inner wall of the top of the heat sink 4 to realize assembly.

The bottom end of the lamp holder 5 is provided with an eye plate 6, the eye plate 6 is in threaded connection with the lamp holder 5, one end of the eye plate 6 extends into the lamp holder 5, and the eye plate 6 is conducted with the driving board 3 through the conductive connecting piece 34 on the driving board 3.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A bulb lamp is characterized in that: the method comprises the following steps:

a lamp cap;

and the bulb shell is connected with the heat radiating piece.

2. The bulb lamp according to claim 1, wherein: the microstructure is a plurality of projections and/or grooves.

3. The bulb lamp according to claim 2, wherein: the cross section of a plurality of the bulges or the grooves is at least one of a circle, an ellipse, a polygon, a cross, a meter shape, a star shape or an L shape, and the cross section is parallel to the thickness direction of the heat dissipation piece.

4. The bulb lamp according to claim 1, wherein: the microstructure is a plurality of annular raised lines which are parallel to each other, or the microstructure is a spiral stripe bulge.

5. The bulb lamp according to claim 1, wherein: the arrangement density of the microstructures is gradually increased from one end far away from the light source component to one end close to the light source component.

6. A bulb lamp according to any one of claims 1 to 5, characterized in that: the heat dissipation part is an injection molding part, and the micro structure is arranged on the outer surface of the injection molding part.

7. A bulb lamp according to any one of claims 1 to 5, characterized in that: the heat dissipation piece comprises an injection molding outer shell and a metal inner shell, the metal inner shell is fixedly embedded in the injection molding outer shell, one end of the injection molding outer shell is connected with the lamp holder, and the microstructure is formed on the surface of the injection molding outer shell.

8. The bulb lamp according to claim 7, wherein: the light source assembly comprises a light source plate, the power supply assembly comprises a drive plate, the drive plate is vertically arranged with the light source plate, one end of the drive plate close to the light source plate extends to form a plurality of insertion parts, the light source plate corresponds to the insertion parts, insertion holes matched with the insertion parts are formed in the positions of the insertion parts respectively, the light source plate is arranged in two of the insertion holes, elastic clamping pieces are arranged on the peripheral sides of the insertion holes respectively, and the insertion parts correspondingly penetrate through the insertion holes and are clamped tightly by the elastic clamping pieces to achieve electric connection between the light source plate and the drive plate.

9. The bulb lamp according to claim 8, wherein: the inner side wall of the metal inner shell, which is close to one end of the bulb shell, is outwards recessed to form an annular step, the light source plate is a circular plate, the bottom surface of the light source plate is abutted against the bottom surface of the annular step, and the circumferential side wall of the light source plate is abutted against the side surface of the annular step.

10. The bulb lamp according to claim 8, wherein: a mutually matched screwing structure is arranged between the bulb shell and the injection molding shell, and the bulb shell is connected with the injection molding shell through the screwing structure; the lower end of the metal inner shell is provided with a threaded part exposed relative to the injection molding outer shell, and the metal inner shell is in threaded connection with the lamp holder through the threaded part; the bottom of the lamp holder is provided with an eye plate, and one end of the eye plate is connected with the conductive connecting piece on the driving board so as to realize conduction with the driving board.