CN101178169A - Heat transfer and dissipation method for lighting lamp and structure thereof - Google Patents

Abstract

A heat transfer and dissipation method and structure of lighting lamp, a lamp body of the lamp body covers the top surface of a heat dissipation fin, so that a sealed space can be formed on the top surface of the heat dissipation fin, and a luminous body or a plurality of luminous body array substrates, an AC/DC power supply conversion supply and at least more than one heat conduction piece are arranged in the sealed space; combining the luminous body array substrate in the center or in the opening at the proper position of the radiating fin, so that the luminous body faces the ground and the side, arranging the heat conducting piece between the luminous body array substrate and the radiating base fin, and attaching the AC/DC power supply conversion supplier in the sealed space on the top surface of the luminous body radiating substrate; the fins of the heat dissipation base on the heat dissipation fins extend towards the ground and the side surface; when the luminous body radiating substrate receives the heat energy generated by the luminous body and the AC/DC power supply conversion supply, the heat energy can be transmitted to the radiating fins by the heat conducting piece and finally dissipated to the atmosphere through the radiating base fins of the radiating fins, so that the radiating purpose is achieved.

Description

Heat transfer and heat dissipation method and structure of lighting fixtures

technical field

The invention relates to a method of heat transfer and heat dissipation of a lighting fixture and its structure, in particular to a fin that has the functions of waterproofing and dustproofing, and can prevent dust falling due to gravity and gravity from accumulating on the top of the lighting fixture and its cooling fins. On-chip, heat transfer and heat dissipation methods and structures of lighting fixtures that seriously affect heat dissipation performance.

Background technique

According to, street lights, garden lights, outdoor lighting and other lamps are indispensable lighting appliances on the road. Through the lighting of the above lamps, the maintenance of home tranquility at night, the prevention of curfew and the strengthening of people's walking safety at night can be achieved; Therefore, there is no doubt about the convenience that lighting fixtures bring to people. However, although lighting fixtures are practical, they still have the following disadvantages:

1. Most of the illuminants used in conventional lighting fixtures are sodium gas lamps, mercury lamps, and composite metal lamps. However, due to the differences in materials and usage methods, the above-mentioned lamps have much lower heat dissipation requirements than lamps that use LEDs as light sources. ; Due to the high luminous efficiency, long life, color variability and excellent nature of environmental protection of LED, it is bound to become a new light source of the new generation.

2. Most of the conventional heat dissipation technologies for high-power LEDs transfer heat to the top of the lamp housing, and even extend the heat dissipation base fins on the lamp housing to dissipate heat; but this kind of design is easy to cause dust accumulation, birds nesting, External environmental factors such as bird feces seriously affect the heat dissipation effect, and even lead to serious light decay and shortened life of the lamps.

It can be seen that the above-mentioned customary items still have many deficiencies, are not really good designers, and need to be improved urgently.

Contents of the invention

The object of the present invention is to provide a heat transfer and heat dissipation method and structure of a lighting fixture with the functions of dustproof, waterproof, insectproof and rustproof.

The second purpose of the present invention is to provide a method of using anti-gravity to avoid the accumulation of dust due to gravity and gravity. The fins of the heat dissipation base are extended towards the ground and sideways, which can achieve better cold air from below. The upward airflow pressure enhances the heat dissipation effect, and can also avoid external factors such as dust accumulation from affecting the heat dissipation performance, so as to achieve the best heat dissipation mechanism of the heat transfer and heat dissipation method and structure of the lighting fixture.

Another object of the present invention is to provide a method and structure for heat transfer and heat dissipation of lighting fixtures through an AC/DC power converter to provide the DC power needed by the illuminants to save power.

Yet another object of the present invention is to provide an AC/DC power conversion supply with a time program control and sensing point-off circuit and an overheating protection circuit to automatically turn on and off the illuminant and prevent the illuminant from being damaged. Heat transfer and heat dissipation method and structure of lighting fixtures burnt due to high temperature.

The heat transfer and heat dissipation method and structure of a lighting fixture that can achieve the above-mentioned purpose of the invention mainly include a lamp post and a lamp body that are combined or properly separated from each other. The lamp body includes a lamp housing, a luminous body or a plurality of luminous body array substrates, An AC/DC power conversion supplier, a heat dissipation fin with at least one heat conduction element; the luminous body array substrate is combined with the central or appropriate position opening of the heat dissipation fin, so that the luminous body array substrate is in contact with the heat dissipation fin , so that the illuminant is arranged downward or inwardly and outwardly, and the heat dissipation base fins on the heat dissipation fins also extend toward the ground and side surfaces, and the heat conducting member is arranged between the luminous body array substrate and the heat dissipation base fins, And the AC/DC power conversion supplier can be pasted on the top surface of the heat dissipation substrate of the luminous body, and finally the top lamp housing is covered on the top surface of the heat dissipation fins, so that the heat dissipation substrate of the luminous body, the heat conduction element and the AC/DC power conversion supply Completely closed to form a sealed space; when the heat dissipation substrate of the luminous body receives the heat energy generated by the luminous body, it can be transmitted to the heat dissipation fins through the heat conduction element, and finally dissipated into the atmosphere through the heat dissipation base fins of the heat dissipation fins In order to achieve the purpose of heat dissipation; in addition, the purpose of extending the fins of the heat dissipation fins towards the ground is to completely avoid the accumulation of dust due to gravity and gravity, which affects the performance of heat dissipation, so that the luminous body can continue to be stable at low temperatures work, thereby prolonging the service life and not causing light decay due to high temperature, and even causing the luminous body to burn out.

Description of drawings

Please refer to the following detailed description of the preferred embodiment of the present invention and accompanying drawings, will further understand the technical content and purpose effect of the present invention; The accompanying drawings of relevant this embodiment are:

1A and B are schematic diagrams of the first implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention;

Fig. 2 is a schematic diagram of the second implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention;

Fig. 3 is a schematic diagram of the first implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention;

Fig. 4 is a schematic diagram of the third implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention;

Fig. 5 is a schematic diagram of the fourth implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention;

Fig. 6 is a schematic diagram of the fifth implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention;

FIG. 7 is the action diagram of the fifth implementation of the heat transfer and heat dissipation method of the lighting fixture and its structure of the present invention; and FIG. 8 is the sixth implementation action diagram of the heat transfer and cooling method of the lighting fixture of the present invention and its structure.

Detailed ways

Please refer to Fig. 1A, B to Fig. 2, which are the heat transfer and heat dissipation method and structure of the lighting fixture provided by the present invention, which mainly includes a lamp body 1, and the lamp body 1 includes:

A cooling fin 11, the central or appropriate position of the cooling fin 11 is provided with an opening (not marked in the figure), the top surface is shaped or flat, and the bottom surface extends downwards with several cooling base fins 111. The form of the base fins 111 can be columnar (as shown in Figure 1A, B) or plate-shaped (as shown in Figure 2 ) or other shapes are all possible, and it is not limited here; the heat dissipation base fins 111 face the ground The side setting mode can avoid external environmental factors such as the accumulation of gravity falling dust or bird nesting feces from affecting the heat dissipation effect of the heat dissipation fins, and extending the fins 111 of the heat dissipation base towards the ground can achieve better cooling. The air pressure from bottom to up airflow enhances the heat dissipation effect;

A luminous body array substrate 12, the luminous body array substrate 12 can be made of aluminum or other high thermal conductivity metal materials; several luminous bodies 13 are connected to the bottom surface or side of the luminous body array substrate 12, and the luminous body 13 can be LED Or OLED or other luminous lamp bodies, and a photomask 14 is arranged on the outer cover of the luminous body 13; the luminous body array substrate 12 is fixed in the opening of the center of the cooling fin 11 or an appropriate position through the locking member 15, so as to The opening is completely closed, so that the luminous body 13 on the bottom surface of the luminous body array substrate 12 faces the ground or the side;

At least one heat conduction element 16, one section of the heat conduction element 16 is in contact with the top surface of the luminous body array substrate 12, and the other section is in contact with the top surface of the heat dissipation fin 11; in addition, the heat conduction element can be a heat pipe or heat conduction plate;

A lamp housing 17, the lamp housing 17 can be in the form of a lampshade, the lamp housing 17 is set on the top surface of the heat dissipation fins 11, through the cover of the lamp housing 17, it can be placed on the top surface of the heat dissipation fins 11 A sealed space is formed, and the luminous body array substrate 12 and the heat conduction element 13 are completely enclosed in the sealed space, so as to achieve effects of dustproof, waterproof, insectproof and rustproof.

Please refer to FIG. 3 , which is a schematic diagram of the action of the present invention. When the luminous body generates heat energy, the heat energy will be transmitted to the heat conduction element 16 through the luminous body array substrate 12, and then conducted to the heat dissipation fins 11 through the heat conduction element 16. Finally, The heat is dissipated into the atmosphere through the heat dissipation base fins 111 of the heat dissipation fins 11 to quickly discharge the heat energy and prevent the luminous body 13 from being burned due to high temperature.

Furthermore, the luminous body array substrate 12 and the heat conduction member 16 are in a completely sealed environment, and the heat dissipation base fins 111 of the heat dissipation fins 11 are arranged towards the ground and the side, so that the luminous body array substrate 12, heat conduction Neither the element 16 nor the fins 111 of the heat dissipation base will have the problem of dust accumulation, so that they are in a state of high heat dissipation performance at any time.

Please refer to FIG. 4, which is a schematic diagram of the third implementation of the present invention, wherein, the form and structure of FIG. 4 are the same as those in FIG. The DC power conversion supplier 18, so that the heat energy generated by the AC/DC power conversion supplier 18 and the sensing circuit can be absorbed by the heat conduction member 16, and then conducted to the heat dissipation fins 11, and then heated by the heat dissipation base fins of the heat dissipation fins 11. The sheet 111 is dissipated in the atmosphere to achieve the purpose of heat exchange, thereby prolonging the service life of the AC/DC power conversion supplier 18 .

The AC/DC power conversion supplier 18 mainly receives the AC power from the power supply end, converts the AC power into a DC power, and transmits it to the luminous body array substrate 12 to provide the luminous body 13 (see FIG. 1B ). the power supply, so that the illuminant 13 can emit light, and a time program-controlled point-off or sensing point-off circuit and an overheating protection circuit can be set in the AC/DC power conversion supplier 18, and the time-programmed point-off circuit is to control the luminous body During the opening and closing time, the overheating protection circuit detects whether the luminous body is overheated. If the luminous body temperature is too high, it will automatically cut off the power supply to prevent the luminous body from being burned.

Please refer to FIG. 5 , which is a schematic diagram of a fourth implementation of the present invention. The difference between FIG. 5 and FIG. 1A and B is that the lamp housing 17 is flat, so that it can be closely combined with the top surface of the heat dissipation fins 11 to increase the performance of heat dissipation.

Please refer to FIG. 6 , which is a schematic diagram of the fifth implementation of the heat transfer and heat dissipation method and structure of the lighting fixture of the present invention, including a lamp body 2, which includes:

A heat dissipation fin 21 with an infinitely extended length. The heat dissipation fin 21 extends towards the ground with a heat dissipation base fin 211. The heat dissipation base fin 211 can be columnar, plate-shaped or other shapes, and on one side or both sides Each side is connected with an array of illuminants 22, and the array of illuminants 22 is covered with a lampshade 23 to completely seal the illuminants 22;

A reflector 24, the reflector 24 is slightly arc-shaped, its width is greater than the heat dissipation fins 21, and the length of the reflector can be infinitely extended; the reflector 24 is fixed on the top surface of the heat dissipation fins 21, so that It can cover the illuminant array 22 so that the light source generated by the illuminant array 22 will be refracted by the reflector 24 and scattered towards the ground to avoid glare and increase the uniform brightness of the illumination.

Please refer to Fig. 7, which is the action diagram of Fig. 6. When the luminous body 22 generates heat energy, the heat energy will be quickly received by the heat dissipation fins 21 and dissipated to the atmosphere by the heat dissipation base fins 211; and the heat dissipation fins The fins 21 are exposed to the atmosphere, and the heat dissipation base fins 211 are arranged facing the ground to avoid dust accumulation, so that the heat dissipation fins 21 can maintain an optimal heat dissipation state.

Please refer to FIG. 8 , which is a schematic diagram of the sixth implementation of the present invention. Most of its structures are the same as in FIG. , so that the luminous body array 22 is in a completely sealed environment.

In addition, the reflector can be a prototype, a square, an ellipse, or other shapes, which are not limited here.

Compared with other conventional technologies, the heat transfer and heat dissipation method and structure of the lighting fixture provided by the present invention have the following advantages:

1. The present invention has the effects of dustproof, waterproof, insect-proof and rust-proof.

2. The present invention uses anti-gravity to avoid the accumulation of gravity falling dust. The fins of the heat dissipation base are extended towards the ground, which can not only achieve better cooling effect of cold air from the bottom to the upward airflow pressure, but also avoid accumulation External factors such as dust affect the heat dissipation performance and achieve the best heat dissipation mechanism.

3. In the present invention, an AC/DC power conversion supplier is used to provide the DC power required by the illuminants, so as to achieve the purpose of power saving.

4. In the present invention, a time-programmed turn-off or sensing turn-off circuit and an overheating protection circuit are installed in an AC/DC power conversion supply to automatically turn on and off the luminous body and prevent the luminous body from being burned due to high temperature.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention, and any equivalent implementation or change that does not depart from the technical spirit of the present invention shall include in the present invention.

Claims (16)

1. A method for heat transfer and heat dissipation of lighting fixtures, characterized in that the heat dissipation base fins of the heat dissipation fins are extended toward the ground or sideways, and more than one fins are combined in the openings at the center or appropriate positions of the top surface of the heat dissipation fins. The luminous body array substrate, so that the luminous body is arranged on the ground or sideways, and one section of the above-mentioned heat-conducting member is in contact with the luminous body array substrate, and the other section is in contact with the heat dissipation fins, and then the luminous body is passed through the lamp housing. The array substrate and the heat conduction element are sealed on the top of the heat dissipation fin; when the luminous body generates heat energy, the heat energy will be conducted to the heat dissipation fin through the luminous body array substrate and heat conduction element, and finally, the heat dissipation base fin of the heat dissipation fin will escape Scatter into the atmosphere. 2. The method for heat transfer and heat dissipation of lighting fixtures according to claim 1, wherein the top surface of the heat-conducting member can be attached to an AC/DC power conversion supplier, so that the heat generated by the AC/DC power conversion supplier can also pass through The illuminant array substrate and the heat conduction element are conducted to the heat dissipation fins, and finally, the heat dissipation base fins of the heat dissipation fins escape to the atmosphere. 3. A method for heat transfer and heat dissipation of lighting fixtures, characterized in that the heat dissipation base fins of the heat dissipation fins are extended toward the ground or sideways, and a luminous body is connected to the heat dissipation fins, so that the heat generated by the luminous body will be conducted to The heat dissipation fins are then dissipated to the atmosphere by the heat dissipation base fins of the heat dissipation fins. 4. A heat transfer and heat dissipation structure of a lighting fixture, comprising: A heat dissipation fin, an opening is arranged at the center or an appropriate position, and several heat dissipation base fins extend from the bottom to the ground; A luminous body array substrate containing the above, the bottom surface or side of the luminous body array substrate is connected with several luminous bodies; the luminous body array substrate is fixed in the opening of the center or appropriate position of the cooling fin, so as to completely close the opening, so that The luminous body on the bottom surface of the luminous body array substrate faces the ground or the side; At least one heat conduction element, one section of the heat conduction element is in contact with the top surface of the luminous body array substrate, and the other section is in contact with the top surface of the heat dissipation fin; A lamp housing, the lamp housing is set on the top surface of the heat dissipation fins, through the cover of the lamp housing, a sealed space can be formed on the top surface of the heat dissipation fins, completely sealing the luminous body array substrate and the heat conducting member in this sealed space. 5. The heat transfer and heat dissipation structure of the lighting fixture according to claim 4, wherein the heat dissipation base fins of the heat dissipation fins can be columnar or plate-shaped or other shapes. 6. The heat transfer and heat dissipation structure of a lighting fixture according to claim 1, wherein the luminous body array substrate can be made of aluminum or other metal materials with high thermal conductivity. 7. The heat transfer and heat dissipation structure of a lighting fixture according to claim 4, wherein the illuminant can be an LED or an OLED or other luminous lamp bodies. 8. The heat transfer and heat dissipation structure of the lighting fixture according to claim 4, wherein the lamp housing can be in the form of a lamp shade. 9. The heat transfer and heat dissipation structure of a lighting fixture as claimed in claim 4, wherein the lamp housing is in the shape of a flat plate so that it can be closely attached to the top surface of the heat dissipation fins to increase the performance of heat dissipation. 10. The heat transfer and heat dissipation structure of a lighting fixture according to claim 4, wherein the heat conducting element can be a heat conducting pipe, a heat conducting plate or other forms of heat conducting elements. 11. The heat transfer and heat dissipation structure of a lighting fixture according to claim 4, further comprising an AC/DC power conversion supplier, the AC/DC power conversion supplier is attached to the top surface of the heat conducting member, The heat energy generated by the AC/DC power conversion supply can be absorbed by the heat conducting member, and then conducted to the heat dissipation fins, and then dissipated into the atmosphere through the heat dissipation base fins of the heat dissipation fins. 12. The heat transfer and heat dissipation structure of a lighting fixture according to claim 11, wherein the AC/DC power conversion supply includes a time-programmed and sensing point-off circuit, and the time-programmed point-off circuit controls light emission Body opening and closing time. 13. The heat transfer and heat dissipation structure of a lighting fixture according to claim 11, wherein the AC/DC power conversion supply includes an overheating protection circuit, and the overheating protection circuit detects whether the illuminant is overheated, and if it emits light When the body temperature is too high, it will automatically cut off the power supply to avoid burning out the luminous body. 14. A heat transfer and heat dissipation structure of a lighting fixture, characterized in that it comprises: A heat dissipation fin that can extend infinitely in length, the heat dissipation fin extends toward the ground or the side with heat dissipation base fins, and one or more luminous body arrays are connected on one side or both sides, and the luminous body array is covered with There is a lampshade to completely seal the luminous body; A reflector extending infinitely, the reflector is arranged on the top surface of the cooling fins, so that the light source generated by the luminous body array will be refracted by the reflector and scattered towards the ground. 15. The heat transfer and heat dissipation structure of a lighting fixture according to claim 14, wherein the reflector is slightly arc-shaped, and its length is longer than that of the heat dissipation fins. 16. The heat transfer and heat dissipation structure of the lighting fixture according to claim 14, wherein the reflector can be integrally formed with the heat dissipation fins.

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