CN218993235U

CN218993235U - LED bulb lamp

Info

Publication number: CN218993235U
Application number: CN202223107112.6U
Authority: CN
Inventors: 曾嘉宾; 赵俊杰; 范世钧; 刘小飞; 黄付果
Original assignee: Foshan Electrical and Lighting Co Ltd
Current assignee: Foshan Electrical and Lighting Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-09
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses an LED bulb lamp which comprises a radiator and a photoelectric integrated plate, wherein the radiator comprises a shell and a metal heat conduction piece which is covered on the inner wall of the shell and extends from bottom to top, the photoelectric integrated plate comprises an aluminum substrate, an LED light source piece and a driving circuit, the LED light source piece and the driving circuit are integrally arranged on the aluminum substrate, and the aluminum substrate is fixed on the metal heat conduction piece in a contact mode. According to the LED light source and driving circuit integrated on the same aluminum substrate, the metal heat conducting piece which is in direct contact with and fixed with the aluminum substrate is arranged in the radiator, so that the heat radiating space in the radiator is increased, and on the other hand, heat generated by the LED light source and the driving circuit on the photoelectric integrated board can be conducted to the metal heat conducting piece through the aluminum substrate and then conducted to the whole shell to radiate to the outside, and the heat radiating efficiency of the lamp body is high.

Description

LED bulb lamp

Technical Field

The utility model relates to the technical field of illumination, in particular to an LED bulb lamp.

Background

The utility model provides a LED bulb lamp is used for the illumination, it includes the lamp holder, the lamp shade, and connect the radiator between lamp holder and lamp shade, generally, set up mutually independent drive circuit board and LED light source board in the radiator, the position that the lamp shade is close to in the heat dissipation chamber is installed to the LED light source board, drive circuit board sets up between LED light source board and lamp holder, and longitudinally extending sets up in the radiator cavity, drive circuit module's output draws wire and the positive and negative pole wiring terminal on the light source board to switch on, drive circuit module's input is connected with the lamp holder, traditional this kind of structure manufacturing process is complicated, drive circuit board has also taken partial heat dissipation space in the radiator, and the heat that drive circuit board produced can not directly transfer to the radiator, the radiating effect is poor.

Disclosure of Invention

The present utility model is directed to an LED bulb lamp that solves one or more of the technical problems of the prior art, and at least provides a beneficial choice or creation of conditions.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an LED bulb lamp which comprises a radiator and a photoelectric integrated plate, wherein the radiator comprises a shell and a metal heat conduction piece which is covered on the inner wall of the shell and extends from bottom to top, the photoelectric integrated plate comprises an aluminum substrate, an LED light source piece and a driving circuit, the LED light source piece and the driving circuit are integrally arranged on the aluminum substrate, and the aluminum substrate is fixed on the metal heat conduction piece in a contact mode.

The beneficial effects of the utility model are as follows: the LED light source part and the driving circuit are integrated on the same aluminum substrate, and meanwhile, the metal heat conducting part which is in direct contact with the aluminum substrate is arranged in the radiator, so that the heat radiating space inside the radiator is enlarged, on the other hand, the heat generated by the LED light source part on the photoelectric integrated plate can be conducted to the metal heat conducting part through the aluminum substrate and then conducted to the whole shell to radiate the heat to the outside, the heat generated by the driving circuit can also be conducted to the metal heat conducting part through the aluminum substrate and then conducted to the whole shell to radiate the heat to the outside, and the heat radiating efficiency of the lamp body is high.

As a further improvement of the technical scheme, an annular groove is formed in the upper end of the metal heat conduction piece, and the aluminum substrate is pressed in the annular groove in an interference mode. The interference press setting enables the aluminum substrate to be in close contact with the metal heat conducting piece, and the installation process is simple.

As a further improvement of the above technical solution, the annular groove includes a groove bottom surface horizontally arranged, and the bottom of the aluminum substrate is in contact with the groove bottom surface. The contact area between the aluminum substrate and the bottom surface of the groove is increased by the contact of the bottom surface, and the side wall and the bottom of the aluminum substrate transfer heat to the metal heat conduction piece at the same time, so that the heat dissipation effect is further enhanced.

As a further improvement of the above technical solution, the upper edge of the annular groove is provided with an inclined guiding surface. The guide surface plays a guiding role in pressing the aluminum substrate, and is favorable for smoothly pressing the aluminum substrate in the annular groove in an interference manner during assembly.

As a further improvement of the technical scheme, the side wall of the annular groove is turned outwards to form a flanging, and the inclined guide surface is formed at the bending position.

As a further development of the above-mentioned solution, the flange is embedded in the housing. The flanging plays a guiding role in the pressing of the aluminum substrate, and simultaneously can realize the fixation of the metal heat conducting piece and the shell, and the formation of the inclined guide surface is not influenced by the thickness of the metal heat conducting piece, so that the structure is simple and the guiding effect is good.

As a further improvement of the above technical solution, the metal heat conducting member is an aluminum material or a copper material. The good heat dissipation effect of aluminum and copper can improve the heat dissipation efficiency of the radiator.

As a further improvement of the technical scheme, the shell is made of insulating plastic and has the advantages of safety and economy.

As a further improvement of the technical scheme, the radiator further comprises a lamp shade, wherein the lamp shade and the radiator are fixed through two annular clamping grooves which are mutually buckled. The fixing structure is fixed through the clamping structure, glue is not required to be sprayed, and labor and consumption can be saved.

As a further improvement of the above technical solution, one of the annular clamping grooves includes a plurality of buckles arranged at intervals along the circumferential direction. The clamping can be easier due to the arrangement of the clamping buckles at intervals.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic diagram of an exploded structure of an LED bulb lamp according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an assembly structure of an LED bulb lamp according to an embodiment of the present utility model;

fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements 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 utility model.

In the description of the present utility model, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

An LED bulb lamp according to an embodiment of the present utility model is described with reference to fig. 1 to 3, and includes a lamp cap 100, a heat sink 200, a photovoltaic integrated panel 300, and a lamp cover 400. The radiator 200 is an annular shell structure with a hollow inside, the rear end of the radiator 200 is connected with the lamp cap 100, the front end of the radiator 200 is connected with the lamp shade 400, the photoelectric integrated board 300 is arranged in the radiator 200, specifically, the photoelectric integrated board 300 comprises an aluminum substrate 310, and an LED light source part and a driving circuit are arranged on the aluminum substrate 310, namely, the LED light source part and the driving circuit are integrally arranged on a circuit board.

In the present embodiment, the direction toward the base 100 is defined as the lower direction, and the direction toward the cover 400 is defined as the upper direction. The upper end of the radiator 200 is of a horn-shaped structure with large outside and small inside, the inner wall of the opening at the upper end of the radiator is provided with a first installation position and a second installation position from top to bottom, the first installation position is provided with a structure for fixing the lampshade 400, and the second installation position is provided with a structure for fixing the photoelectric integrated plate 300. Specifically, the heat sink 200 includes a housing 230, and a metal heat conducting member 240 covering an inner wall of the housing 230, where the metal heat conducting member 240 extends from bottom to top to a second installation position on the inner wall of the heat sink 200, and the first installation position is located at a position of the housing 230 higher than the metal heat conducting member 240, that is, a structure for fixing the lamp shade 400 is disposed on the housing 230, and in the second installation position, the aluminum substrate 310 is fixed in contact with the metal heat conducting member 240.

After the heating devices are integrated on the same aluminum substrate, the heat dissipation space inside the radiator is increased, heat generated by the LED light source parts on the photoelectric integrated plate 300 can be conducted to the metal heat conduction part 240 through the aluminum substrate 310 and then conducted to the whole shell 230 to dissipate heat to the outside, heat generated by the driving circuit can also be conducted to the metal heat conduction part 240 through the aluminum substrate 310 and then conducted to the whole shell 230 to dissipate heat to the outside, and the heat dissipation efficiency of the lamp body is high.

The housing 230 is made of insulating plastic, and has both safety and economical advantages, and the metal heat conducting member 240 is made of aluminum or copper in order to provide the heat sink 200 with good heat conductivity.

The periphery wall of the opening end of the lamp shade 400 is provided with a first annular clamping groove 410, the first annular clamping groove 410 comprises a flange arranged at the lower edge, the first annular clamping groove 410 is inserted into the opening at the upper end of the radiator 200, the first installation position of the radiator 200 is provided with a second annular clamping groove 210 which is matched with the first annular clamping groove 410 in a clamping manner, the lamp shade 400 is fixed with the radiator 200 through a clamping structure, glue spraying is not needed, and not only can labor be saved, but also consumables can be saved. In order to enable the first annular clamping groove 410 and the second annular clamping groove 210 to be easily clamped, the upper edge of the second annular clamping groove 210 is provided with a plurality of buckles 250 protruding on the inner wall at intervals, and specifically, the buckles 250 are uniformly provided with three in the circumferential direction, however, the number of the buckles is not limited, and the number of the buckles can be adaptively adjusted according to practical situations. It will be appreciated that in other embodiments, the clip 250 may be disposed at the open end of the lamp housing 400, and the first annular slot 410 may be disposed at the inner wall of the heat sink 200.

The upper end of the metal heat conducting member 240 forms an annular groove 220 at the second installation position of the heat sink 200, the annular groove 220 comprises a groove bottom surface 221 and a side wall 222, the aluminum substrate 310 is pressed in the second annular groove 220 in an interference fit manner, the groove bottom surface 221 can be arranged obliquely or horizontally, and preferably, in the embodiment, the groove bottom surface 221 is arranged horizontally, the bottom of the aluminum substrate 310 is contacted with the groove bottom surface 221, the peripheral wall of the aluminum substrate 310 is contacted with the side wall 222, the contact area between the aluminum substrate 310 and the groove bottom surface 221 is increased due to bottom surface contact, and the heat dissipation effect is enhanced.

Further, the side wall 222 is turned over to the outer circumferential direction to form a flange 223, the flange 223 is embedded in the housing 230 to fix the metal heat conducting member 240 and the housing 230, and the flange 223 simultaneously forms the upper edge opening of the annular groove 220 into an inclined guiding surface at the bending position, which plays a guiding role in the pressing of the aluminum substrate 310, so that the aluminum substrate 310 is pressed in the annular groove 220 in an interference manner during assembly. When the flange 223 is folded in a horizontal state, the arc angle formed at the folded portion is also understood as an inclined guide surface, and the pressing of the aluminum substrate 310 can be guided. It will be appreciated that in other embodiments, the lower end of the metal heat conducting member 240 may be embedded in the housing 230 and fixed, and the side wall 222 of the annular groove 220 at the upper end of the metal heat conducting member 240 may be chamfered to form an inclined guiding surface without flanging. However, the provision of the burring to form the inclined guide surface is more effective due to the thickness limitation of the metal heat conductive member 240.

In other embodiments, the aluminum substrate 310 may also be secured to the groove bottom 221 by fasteners, with the aluminum substrate 310 being non-interference connected to the annular groove 220.

While the preferred embodiments of the present utility model have been illustrated and described, the novel utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these are intended to be included within the scope of the present utility model as defined in the appended claims.

Claims

1. An LED bulb lamp, which is characterized in that: the LED light source device comprises a radiator (200) and an optoelectronic integrated plate (300), wherein the radiator (200) comprises a shell (230) and a metal heat conduction piece (240) which is covered on the inner wall of the shell (230) and extends from bottom to top, the optoelectronic integrated plate (300) comprises an aluminum substrate (310), an LED light source piece and a driving circuit which are integrally arranged on the aluminum substrate (310), and the aluminum substrate (310) is fixedly connected with the metal heat conduction piece (240) in a contact mode.

2. The LED bulb lamp of claim 1, wherein: an annular groove (220) is formed in the upper end of the metal heat conduction piece (240), and the aluminum substrate (310) is pressed in the annular groove (220) in an interference mode.

3. The LED bulb lamp of claim 2, wherein: the annular groove (220) comprises a groove bottom surface (221) which is horizontally arranged, and the bottom of the aluminum substrate (310) is contacted with the groove bottom surface (221).

4. The LED bulb lamp of claim 2, wherein: the upper edge of the annular groove (220) is provided with an inclined guide surface.

5. The LED bulb lamp of claim 4, wherein: the side wall of the annular groove (220) is turned outwards to form a flanging (223), and the bending position forms the inclined guide surface.

6. The LED bulb lamp of claim 5, wherein: the flange (223) is embedded in the housing (230).

7. The LED bulb lamp of claim 1, wherein: the metal heat conducting member (240) is an aluminum material or a copper material.

8. The LED bulb lamp of claim 1, wherein: the housing (230) is an insulating plastic.

9. The LED bulb lamp of claim 1, wherein: the radiator comprises a radiator body, and is characterized by further comprising a lampshade (400), wherein the lampshade (400) and the radiator (200) are fixed through two annular clamping grooves which are mutually buckled.

10. The LED bulb lamp of claim 9, wherein: one of the annular clamping grooves comprises a plurality of buckles arranged at intervals along the circumferential direction.