CN202581222U - Combined bulb radiating structure - Google Patents

Abstract

A combined bulb heat dissipation structure comprises a lamp holder, a heat dissipation outer cover and a lamp holder. The lamp holder comprises a sleeve and an accommodating space arranged in the sleeve for accommodating a circuit board. The sleeve comprises a first abutting part arranged on the peripheral side of the sleeve and at least one first combining part arranged on the side edge of the sleeve. The heat radiation outer cover comprises a through hole through which the sleeve passes and is abutted against the first abutting part at the peripheral side of the opening at one end, and at least one heat radiation fin arranged at the peripheral side of the heat radiation outer cover. The lamp holder is used for installing an LED lamp electrically connected to the circuit board and comprises a second combining part and a second abutting part, wherein the second combining part is combined with the first combining part, and the second abutting part abuts against the heat dissipation outer cover from two sides of the heat dissipation outer cover respectively with the first abutting part, so that the trouble of using screws and screw holes is eliminated through simple combination, and the compactness of the structure is improved.

Description

Combined light bulb cooling structure

technical field

The utility model relates to a light bulb heat dissipation structure, in particular to a combined light bulb heat dissipation structure which can be tightly assembled without using screws.

Background technique

Traditional light bulbs use tungsten filaments as the light source, which has a simple structure and is quite convenient for installation and replacement. The structure of the tungsten filament light bulb is usually that an adapter is fixedly connected to the tail end of the spherical lampshade, and the adapter has threads for screwing into a general bulb holder. When the power is turned on, the tungsten wire installed in the lampshade can generate heat and emit light, and the light can penetrate the lampshade to irradiate the outside world, thereby achieving the purpose of lighting. However, during the operation of the tungsten filament bulb to generate illumination light, a large amount of heat energy is also generated at the same time, so it consumes a lot of power and wastes energy, and the tungsten filament is easy to burn out, so that the service life of the tungsten filament bulb is short.

A light emitting diode (LED) is a solid-state light source that converts electrical energy into light energy, and is manufactured using epitaxial growth technology and semiconductor material technology. It has the characteristics of small size, low driving voltage, fast response rate, shock resistance, long life and environmental protection. And with the continuous development and progress of science and technology, its luminous efficiency has continued to increase since its appearance in the 1960s. It has not only surpassed tungsten bulbs (efficiency about 10-20lm/W), but also surpassed fluorescent tubes (efficiency about 10lm/W). 60~80lm/W). Due to the continuous progress of LED related technologies, it is estimated that it will reach the level of 100lm/W in the next few years. As LED has become the focus of the new generation of solid-state light sources, electronic components are increasingly required to be thinner and smaller, making bulb-type light-emitting diode lamps gradually replace tungsten bulbs and become a large number of widely used lighting devices. And with the popularization and use of signal lamps, street lamps, household lighting lamps, car lamps, advertising lamps, etc., LED has become the mainstream trend of the lighting market and has become unstoppable.

However, a light-emitting diode or its module with higher power and brightness generates more heat, which is difficult to dissipate in a relatively small light-emitting diode lamp. Therefore, LEDs still have a large heat dissipation technical bottleneck, which is also the key point that is most difficult to break through in the marketization of high-power, high-brightness LED lamps. In the current general heat dissipation solution in the industry, a radiator is arranged in the lamp, and the heat is dissipated into the surrounding air through the contact between the surface of the radiator and the natural convection air. Therefore, in order to meet the heat dissipation requirements of high-power, high-brightness LED lamps so that they can work normally and prevent light decay, it is necessary to provide a radiator with a large heat dissipation area. This usually results in a large volume occupied by the radiator in the lamp, and the overall volume of the lamp is also large, making the structure of the lamp large and difficult to be widely used in indoor lighting.

In order to solve the above-mentioned problem of heat dissipation, Taiwan New Patent No. M343768 discloses a heat dissipation structure of an LED lamp. A positioning flange is provided on the periphery of a position of the assembly hole of the outer casing, so that a housing is formed in the positioning flange. Holes, the two sides of the accommodating hole are respectively bonded with the first bonding plate and the second bonding plate, the first bonding plate provides the setting of the control chip, the second bonding plate provides the setting of the LED light, and the thermal liquid or thermal paste is used to set the accommodating hole Inside, both sides of the accommodating hole are closed by the first bonding plate and the second bonding plate; thereby increasing the heat dissipation contact area to increase the heat dissipation effect.

However, the heat dissipation structure of the above-mentioned LED lamp is to assemble the outer shell, the first joint plate and the second joint plate by positioning the screws and screw holes. In terms of process, it is necessary to add a threaded screw after the mold is opened. The program of the hole, and when assembling, the force may not be appropriate when the screw passes through the screw hole, resulting in cracks and damage to the outer shell, thereby reducing the problem of process yield.

Utility model content

The main purpose of this utility model is to make the heat dissipation structure assembled with LED lamps only need to open the mold once, and can be assembled and combined with each other through the structural design, so as to increase the yield rate of the process and the convenience of assembly.

In order to achieve the above purpose, the utility model provides a combined light bulb cooling structure,

A lamp socket includes a sleeve, and an accommodating space arranged in the sleeve to accommodate a circuit board, the sleeve includes a first abutting portion provided on the peripheral side of the sleeve, and at least one a first joint portion provided on the side of the sleeve;

A heat dissipation cover, including a through hole through which the sleeve passes and abuts against the first abutting part at the peripheral side of an opening at one end, and at least one heat dissipation fin provided on the outer peripheral side of the heat dissipation cover; and

A lamp holder for installation of an LED lamp electrically connected to the circuit board, the lamp holder includes a second joint part combined with the first joint part, and a second joint part combined with the first abutment part respectively by the The two sides of the heat dissipation cover abut against the heat dissipation cover so that the lamp holder, the heat dissipation cover, and the lamp holder are closely combined with each other at the second abutting portion.

In the heat dissipation structure of the above-mentioned combined light bulb, the heat dissipation cover includes a heat dissipation part set on the sleeve, and an aluminum substrate set on the heat dissipation part corresponding to the end of the second abutting part.

In the above-mentioned combined light bulb heat dissipation structure, the lamp holder includes a first positioning portion, and the aluminum base plate includes a second positioning portion that is positioned with the first positioning portion.

In the above-mentioned combined light bulb heat dissipation structure, the combined light bulb heat dissipation structure further includes a lampshade combined on the heat dissipation outer cover to accommodate the lamp holder.

In the heat dissipation structure of the above-mentioned combined light bulb, the lampshade includes a perforation through which the LED lamp passes.

In the above combined light bulb heat dissipation structure, the first joint part is a hook groove, and the second joint part is a hook that engages with the hook groove.

In the heat dissipation structure of the above-mentioned combined light bulb, the lamp holder includes a metal connector connected to an external power source to supply power to the circuit board.

In the above-mentioned combined light bulb heat dissipation structure, the LED lamp includes a first fitting portion, and the lamp holder includes a second fitting portion combined with the first fitting portion.

Therefore, the utility model has the following beneficial effects compared with the prior art:

1. The utility model sets the heat dissipation cover on the sleeve of the lamp holder, and combines the lamp holder on the sleeve at the other end, so that the heat dissipation cover passes through the first abutting part on the sleeve and The second abutting portion on the lamp holder is respectively clamped by two ends, so that each component of the utility model is closely combined through the assembly mechanism on the component.

2. Each component of the utility model only needs to open the mold once, and the process of piercing screw holes is omitted.

Since the positioning of screws and screw holes is omitted, the utility model can avoid the problem of structural cracks caused by improper force output during assembly.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1, Fig. 2, are the structural decomposition schematic diagrams of the utility model combined type light bulb heat dissipation structure;

Fig. 3 is a schematic cross-sectional view of the combined light bulb heat dissipation structure of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are specifically described:

Please refer to Fig. 1 and Fig. 2 of the present utility model, which are schematic diagrams showing the structural decomposition of the present utility model. The heat dissipation cover 20 on the outer peripheral side of the lamp holder 10 , and a lamp holder 30 assembled on the lamp holder 10 . The lamp holder 10 includes a metal connector 13 electrically connected to the mains connector to obtain external power, a sleeve 11 connected to the metal connector 13, and a circuit board 14 placed inside the sleeve 11. Accommodating space 12. One end of the sleeve 11 is connected to the light frame 30 , and an LED lamp 40 electrically connected to the circuit board 14 is assembled on the light frame 30 . In this way, the LED lamp 40 can obtain the external power processed by the circuit board 14 to supply the necessary power for the LED lamp 40 .

The detailed assembly structure of the combined light bulb heat dissipation structure of the present invention is as follows: the sleeve 11 includes a first abutting portion 112 arranged on the sleeve 11 and close to the peripheral side of the metal joint 13, and at least one The first coupling portion 111 is disposed on a side of the sleeve 11 . The heat dissipation cover 20 includes a through hole 21 for the sleeve 11 to pass through and match the shape of the sleeve 11. When the heat dissipation cover 20 is assembled on the sleeve 11, the first The abutting portion 112 abuts against a peripheral side of the heat dissipation cover 20 near the end of the through hole 21 . The lamp holder 30 includes a second connecting portion 32 fixed to the first connecting portion 111 , and an end circumference disposed on the lamp holder 30 and abutting against the heat dissipation cover 20 opposite to the first abutting portion 112 The second abutting portion 33 on the side.

Please also refer to FIG. 3 , the first coupling portion 111 of the sleeve 11 can be a hook groove, and the second coupling portion 32 can be a hook corresponding to the hook groove. The heat dissipation cover 20 includes a heat dissipation portion 23 set on the sleeve 11, and an aluminum substrate 24 disposed on the heat dissipation portion 23 corresponding to one end of the second abutting portion 33 on the lamp holder 30, and The heat dissipation portion 23 includes a mounting slot 232 for mounting the aluminum substrate 24 . In order to allow the second joint part 32 to enter into a space when it is combined with the first joint part 111, the heat dissipation part 23 includes two guide grooves arranged on both sides of the through hole 21 for the second joint part 32 to enter. 231. In addition, a second positioning portion 241 is provided on the periphery of the aluminum substrate 24 close to one end of the lamp holder 30 , and a first positioning portion 34 and the first positioning portion 34 extend from the second abutting portion 33 on the lamp holder 30 . The two positioning parts 241 are combined so that the lamp holder 30 can be positioned on the heat dissipation cover 20 so that the lamp holder 30 and the sleeve 11 will not shake relative to the heat dissipation cover 20 .

In order to increase the heat dissipation area of the heat dissipation cover 20, the outer peripheral side of the heat dissipation cover 20 also includes a plurality of heat dissipation fins 22, so that the LED lamp 40 can accelerate heat dissipation through the heat dissipation cover 20, effectively reducing the temperature of the LED lamp 40 . In order to fix the LED lamp 40, the light bulb heat dissipation structure of the present utility model also includes a lampshade 50 screwed on the heat dissipation outer cover 20 to accommodate the lamp holder 30, and the lampshade 50 is provided with a perforation for the LED lamp 40 to pass through 51 , and abut against the upper surface of the LED lamp 40 on the inner peripheral side of the lampshade 50 near the through hole 51 , so as to fix the LED lamp 40 on the lamp holder 30 . On the other hand, in order to prevent the LED lamp 40 from shaking relative to the lamp holder 30, the LED lamp 40 still includes a first fitting part 41, and the lamp holder 30 is provided with a first fitting part 41 corresponding to The two fitting parts 31 enable the LED lamp 40 to be positioned on the lamp holder 30 .

Please refer to Fig. 1, Fig. 2 and Fig. 3 together, wherein Fig. 3 is a schematic cross-sectional view of the structure of the utility model, as shown in the figure: when assembling, the sleeve 11 of the lamp holder 10 passes through the heat dissipation cover 20 The hole 21 is combined in the heat dissipation cover 20 , and the first abutting portion 112 of the sleeve 11 is against one end of the heat dissipation cover 20 . The lamp holder 30 is combined on the first connecting part 111 of the sleeve 11 through the second connecting part 32, and when combined, guides the first abutting part on the sleeve 11 and the first abutting part on the lamp holder 30. The two abutting parts respectively abut against the aluminum substrate 24 and the heat dissipation part 23 at two ends, so that the heat dissipation cover 20 is combined with the lamp holder 30 and the lamp holder 10 into a compact structure.

In summary, the utility model sets the heat dissipation cover on the sleeve of the lamp holder, and combines the lamp holder on the sleeve at the other end, so that the heat dissipation cover passes through the first contact on the sleeve. The backing portion and the second abutting portion on the lamp holder are respectively clamped by two ends, so that each component of the utility model is closely combined through the assembly mechanism on the component. Therefore, each component of the utility model only needs to open the mold once, and the process of piercing screw holes is omitted. On the other hand, since the positioning of screws and screw holes is omitted, the utility model can avoid the problem of structural cracks caused by improper force output during assembly. The utility model can conduct heat energy to the heat dissipation part through the aluminum substrate, and provide an insulation effect at the same time.

Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the utility model without departing from the spirit and essence of the utility model, but These corresponding changes and deformations should all belong to the protection scope of the appended claims of the present utility model.

Claims (8)

1. A combined heat dissipation structure for light bulbs, characterized in that it comprises: A lamp socket includes a sleeve, and an accommodating space arranged in the sleeve to accommodate a circuit board, the sleeve includes a first abutting portion provided on the peripheral side of the sleeve, and at least one a first joint portion provided on the side of the sleeve; A heat dissipation cover, including a through hole through which the sleeve passes and abuts against the first abutting part at the peripheral side of an opening at one end, and at least one heat dissipation fin provided on the outer peripheral side of the heat dissipation cover; and A lamp holder for installation of an LED lamp electrically connected to the circuit board, the lamp holder includes a second joint part combined with the first joint part, and a second joint part combined with the first abutment part respectively by the The two sides of the heat dissipation cover abut against the heat dissipation cover so that the lamp holder, the heat dissipation cover, and the lamp holder are closely combined with each other at the second abutting portion. 2. The heat dissipation structure of a combined light bulb according to claim 1, wherein the heat dissipation cover includes a heat dissipation portion disposed on the sleeve, and a heat dissipation portion disposed on the heat dissipation portion corresponding to the second abutment aluminum base plate at one end. 3 . The combined light bulb heat dissipation structure according to claim 2 , wherein the lamp holder includes a first positioning portion, and the aluminum substrate includes a second positioning portion that is positioned with the first positioning portion. 4 . 4 . The combined heat dissipation structure for light bulbs as claimed in claim 1 , further comprising a lampshade assembled on the heat dissipation outer cover for accommodating the lamp holder. 5 . The heat dissipation structure of the combined light bulb as claimed in claim 4 , wherein the lampshade includes a perforation through which the LED lamp passes. 6 . 6 . The combined light bulb heat dissipation structure according to claim 1 , wherein the first coupling portion is a hook groove, and the second coupling portion is a hook that engages with the hook groove. 6 . 7 . The heat dissipation structure of the combined light bulb as claimed in claim 1 , wherein the lamp holder comprises a metal connector connected to an external power source to supply power to the circuit board. 8 . 8. The combined light bulb heat dissipation structure according to claim 1, wherein the LED lamp comprises a first fitting part, and the lamp holder comprises a second fitting part combined with the first fitting part department.

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