CN204986474U - Utilize air convection's simple and easy LED bulb - Google Patents

Abstract

The utility model discloses a simple LED light bulb utilizing air convection to dissipate heat. , the driving power supply is electrically connected to the lamp cap; the housing is provided with an air inlet through hole, the side of the housing near the lamp cap and/or the lamp cap is provided with an air outlet through hole, and the side wall of the housing is provided with There is an exhaust and dust-proof device; due to the heat energy generated in the shell, the air pressure inside is higher than the external atmospheric pressure. The air and dust-proof device is discharged to form air circulation; the utility model can reduce the temperature inside the shell through the external air, and can complete the heat dissipation effect without setting a special radiator, and has a simple structure, which is conducive to automatic mass production and reduces production costs.

Description

A simple LED light bulb using air convection to dissipate heat

technical field

The utility model relates to the field of LEDs, in particular to a simple LED light bulb using air convection to dissipate heat.

Background technique

Compared with traditional fluorescent lighting, LED lighting has the advantages of low energy consumption, high brightness, long life, and eye protection. Therefore, LED bulbs currently occupy the main market in the market. LED bulbs are generally mass-produced. In order to solve the heat dissipation of LED bulbs The problem is that the LED light bulbs produced quantitatively at present are generally composed of at least a standard lamp holder (screw or bayonet), shell, radiator bulb, power supply, light source board, wires and screw lamps for fixing. Heat dissipation, but the structure of this kind of LED bulb is complex, no matter how the process is optimized, it cannot solve the manual assembly process, and cannot realize automatic production, resulting in low production efficiency and poor product quality consistency. The manual assembly makes the production cost too high, and the manual assembly will also lead to poor coordination due to the different efficiency of employees, which is not as high as the production efficiency of automated machinery. Therefore, it is now necessary to design a simple LED bulb that uses air convection to dissipate heat, so that it can be easily used in automation. Production.

Utility model content

The technical problem to be solved by the utility model is to provide a simple LED bulb that uses air convection to dissipate heat, which has a good heat dissipation effect, and saves the original radiator part, which can simplify the structure of the LED bulb and facilitate the automation of the quantitative production of LED bulbs .

In order to solve the above technical problems, the utility model provides a simple LED light bulb that uses air convection to dissipate heat, including a lamp holder, a driving power supply, a light source board and a housing, the lamp holder is connected to the housing, and the light source board is arranged in the housing , the light source board is electrically connected to the driving power supply, and the driving power supply is electrically connected to the lamp cap; the housing is provided with an air inlet through hole, and the side of the housing near the lamp cap and/or the lamp cap is provided with an air outlet through hole , The side wall of the housing is provided with an exhaust and dust-proof device.

As a preferred embodiment of the utility model for a simple LED light bulb that utilizes air convection to dissipate heat, several air intake through holes are provided, and the air intake through holes are circular and located on the top of the housing away from the lamp cap.

As a preferred embodiment of a simple LED light bulb using air convection to dissipate heat in the utility model, the housing includes two half-shells that are fastened and connected, and each half-shell includes a hemispherical shell that is sequentially connected, and an exhaust and dust-proof device. and the boss, the lamp holder is connected with the boss of the housing.

As a preferred embodiment of a simple LED light bulb using air convection to dissipate heat in the present invention, the outer end surfaces of the boss and the lamp cap are provided with air outlet holes.

As a preferred embodiment of a simple LED light bulb using air convection to dissipate heat in the present invention, the exhaust and dust-proof device is a connecting plate provided with a number of air holes.

As a preferred embodiment of a simple LED light bulb using air convection to dissipate heat in the present utility model, the light source board includes two parallel substrates, and lamp beads are arranged on opposite surfaces of the substrates.

As a preferred embodiment of a simple LED light bulb utilizing air convection to dissipate heat in the present invention, a heat sink is arranged on the opposite surface of the substrate.

As a preferred embodiment of a simple LED light bulb utilizing air convection to dissipate heat in the present invention, air convection holes are provided on the substrate.

As a preferred embodiment of a simple LED light bulb utilizing air convection to dissipate heat in the utility model, the housing and the lamp cap are screwed or buckled.

Implementing the embodiment of the present utility model has the following beneficial effects:

When the LED light bulb of the utility model is working, due to the heat energy generated in the shell, the air pressure inside it is higher than the atmospheric pressure of the outside world. The hole and the exhaust dustproof device are exhausted to form air circulation. The utility model can reduce the temperature inside the casing through the outside air, and can complete the heat dissipation effect without setting a special radiator, and has a simple structure, which is beneficial to automatic mass production and reduces production costs. In addition, the air released from the air outlet holes can also dissipate heat from the driving power, further improving the heat dissipation effect.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the LED light bulb of the present utility model;

Fig. 2 is a schematic diagram of an exploded structure of the LED light bulb of the present invention;

Fig. 3 is a schematic diagram of the airflow direction of the LED light bulb of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. It is only a statement that the orientation words such as up, down, left, right, front, back, inside, and outside appearing or about to appear in the text of the utility model are only based on the accompanying drawings of the utility model, and it is not a reference to the utility model. New specific restrictions.

Referring to accompanying drawings 1 to 3, the utility model discloses a simple LED light bulb using air convection to dissipate heat, including a lamp holder 1, a driving power supply 2, a light source board 3 and a housing 4, and the lamp holder 1 and the housing 4 are connected , the light source board 3 is arranged in the housing 4, the light source board 3 is electrically connected to the driving power supply 2, and the driving power supply 2 is electrically connected to the lamp holder 1. The lamp holder 1, the driving power supply 2 and the light source board of the present utility model are sequentially Arranged, the electrical connection is specifically a wire connection; the housing 4 is provided with an air intake through hole 11, the housing 1 is provided with an air outlet through hole on the side close to the lamp cap 1 and/or the lamp cap 1, and the housing 4 The side wall of the body 1 is provided with an exhaust and dust-proof device 5 , and the housing 4 is screwed or buckled with the lamp cap 1 .

The housing 4 of the present utility model includes two half-shells (the first half-shell 4a and the second half-shell 4b respectively on the left and right) that are fastened and connected. shell 41a and second hemispherical shell 41b), exhaust dustproof devices (respectively first exhaust dustproof device 5a and second exhaust dustproof device 5b) and bosses (respectively first boss 42a and second boss 42b), the lamp cap 1 is connected to the boss of the housing 4 . The air outlet holes are specifically: the boss (the first boss 42a and the second boss 42b) and the outer end surface of the lamp cap 1 are provided with air outlet holes, which are respectively the first air outlet hole 43 and the second air outlet hole 12. The exhaust and dust-proof device 5 described in the utility model is a connection plate provided with several air holes, the connection plate is in the shape of a cuboid, one end is connected to the hemispherical shell, and the other end is connected to the boss, and the three are on the same plane. The gas dustproof device 5 can prevent the entry of dust, keep the inside of the bulb clean, and improve the service life of the bulb.

In order to better allow outside air to enter the housing 4, several air intake through holes 11 are provided, and the air intake through holes 11 are circular and located on the top of the housing 4 away from the lamp cap 1, that is, a hemispherical shell. The top position of the lamp is designed so that the air enters from the very top, which can better dissipate heat from the bulb.

The light source board 3 of the present utility model includes two substrates 31 arranged in parallel. The opposite surfaces of the substrates 31 (that is, the surfaces where the two substrates 31 are far away from each other) are provided with lamp beads 32 , and the opposite surfaces of the substrates 31 are provided with There is a radiator 33, the radiator 33 is a plate-shaped structure, directly attached to the back of the substrate 31, the structure is simple, and can dissipate heat to the lamp bead 32, the substrate 31 is provided with an air convection hole 34, because the lamp bead 32 is in the Heat will be generated during the lighting process, and the heat generated by the lamp bead 32 will form a hot air flow around it and continuously rotate and flow in the spherical housing 4 to form a vortex, and the cold air from the outside will continuously enter through the air intake hole 11 inside the housing 4, and circulate in the housing 4, because the substrate 31 needs to undertake the role of heat conduction and heat dissipation, so the temperature on the substrate 31 will be higher than the air temperature in the housing 4, and the heat generated by the lamp bead 32 will be The cold air absorbed through the air intake through hole 11 is discharged through the air convection hole 34, so as to reduce the temperature of the lamp bead 32 to reach the safe use condition. The dust device 5a, 5b penetrates into the hemispherical shell, and the lamp bead 32 is located in the hemispherical shell.

Referring to accompanying drawing 3, for the schematic diagram of air flow direction, when the LED light bulb is used, the lamp head faces upward, and the housing 4 faces downward. When the LED light bulb of the present invention is working, it is mainly driven by the light source board 3 and the The power supply 2 generates heat, and the heat energy in the casing 4 makes the air pressure inside the casing 4 higher than the atmospheric pressure outside. Under the action of pressure, the outside air will enter the casing through the air intake hole 11, as shown by the arrow A in Fig. 3 As shown, with the effect of heat, the incoming air will flow upward through the light source board 3 from the air outlet through hole and the exhaust dustproof device. According to the specific structure of the device, the hot air first passes through the light source board 3 from the exhaust dustproof device 5. Flow out from the through hole, as shown by the arrow B in Figure 3, the hot air that does not flow out continues upwards, and the hot air that passes through the boss part flows out from the air outlet through hole 43 of the boss, as shown by the arrow C in Figure 3, where The boss forms an airflow cavity, and the airflow flowing from the arrow C will also take away the heat of the driving power supply 2, and the remaining air goes upward, passes through the driving power supply 2, and flows upward from the air outlet hole 12 of the lamp head 1, as shown in Figure 3 As shown by the arrow D, such air forms a convective circulation, which produces the so-called chimney effect, and the temperature in the housing is lowered by the outside air, and the airflow can also flow out from the gap at the connection of the device, and the heat dissipation effect can be completed through its own improvement , no need to set a special radiator for heat dissipation, so that the structure is simple, it is beneficial to automatic mass production, and the production cost is reduced, and the LED bulb of the utility model can dissipate heat from both the light source board 3 and the driving power supply 2, and the heat dissipation efficiency is high.

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and modifications can also be made, these improvements and modifications It is also regarded as the protection scope of the present utility model.

Claims (9)

1. A simple LED light bulb utilizing air convection to dissipate heat, characterized in that it comprises a lamp holder, a driving power supply, a light source board and a housing, the lamp holder is connected to the housing, the light source board is arranged in the housing, and the light source board It is electrically connected with the driving power supply, and the driving power supply is electrically connected with the lamp holder; The casing is provided with an air inlet through hole, the side of the casing close to the lamp cap and/or the lamp cap is provided with an air outlet through hole, and the side wall of the casing is provided with an exhaust and dustproof device. 2. The simple LED light bulb utilizing air convection to dissipate heat according to claim 1, wherein there are several air intake through holes, and the air intake through holes are circular and located on the top of the housing away from the lamp cap. 3. The simple LED light bulb using air convection to dissipate heat according to claim 1 or 2, wherein the housing includes two snap-fit half-shells, and each half-shell includes sequentially connected hemispherical shells, The exhaust dust-proof device and the boss, the lamp holder is connected with the boss of the housing. 4. The simple LED light bulb utilizing air convection to dissipate heat according to claim 3, wherein an air outlet through hole is provided on the outer end surface of the boss and the lamp cap. 5. The simple LED light bulb using air convection to dissipate heat according to claim 3, wherein the exhaust and dust-proof device is a connecting plate provided with a plurality of air holes. 6 . The simple LED light bulb utilizing air convection to dissipate heat according to claim 1 , wherein the light source board comprises two parallel substrates, and lamp beads are arranged on opposite surfaces of the substrates. 7. The simple LED light bulb using air convection to dissipate heat according to claim 6, wherein a heat sink is arranged on the opposite surface of the substrate. 8 . The simple LED light bulb using air convection to dissipate heat according to claim 6 , wherein air convection holes are provided on the substrate. 9 . The simple LED light bulb utilizing air convection for heat dissipation according to claim 1 , wherein the housing is screwed or snap-fitted to the lamp cap. 10 .