CN103672485A - Led lamp structure - Google Patents

Abstract

The invention discloses an LED lamp structure, comprising: the light source module comprises a shell, a connector, a light source module and at least one radiating fin, wherein the shell is internally provided with an accommodating space and comprises at least one conduction groove which is arranged on the surface edge of the shell; the connector is connected with the shell and receives a working power supply; the light source module is connected with the shell and receives the working power supply to generate a light source; the heat dissipation fins are arranged in the accommodating space of the shell and integrated with the shell. The light source module is combined with the shell, the conduction groove is arranged on the shell to be combined with the radiating fins, when the LED lamp works to generate heat energy, natural convection of air can be formed through the conduction groove, cold air is blown to the light source module to dissipate the heat energy, and the working temperature of the LED lamp is reduced; meanwhile, the complexity of the design structure of the lamp can be greatly reduced by the structure, and the lamp can be made of materials easy to produce, so that the mass production stage can be rapidly started, and the cost is effectively reduced.

Description

Structure of LED lamps

technical field

The invention relates to a lamp structure applicable to lighting in various fields such as light bulbs, recessed lamps and street lamps, in particular to an LED lamp structure.

Background technique

Traditional lighting devices, so-called light bulbs or bulbs, start with using tungsten wire as the light source. Since the light emitted by the tungsten wire is omnidirectional (non-directional), it does not direct to a specific direction. The output is more light source, so it quickly replaced the light source such as candle or kerosene lamp, but the lighting device using tungsten wire as the light source consumes a lot of power, and the illuminance that can be provided by the power consumed per watt is among the current light sources. It is quite poor, so many R & D resources are invested in providing more energy-efficient light sources to replace traditional incandescent bulbs.

Light-emitting diode (Light-Emitting Diode, LED) is a semiconductor component. The material of its light-emitting chip is mainly a compound of chemical elements, such as gallium phosphide (GaP) or gallium arsenide (GaAs). The principle of light emission is to convert electrical energy into light Because the life of LED is more than 100,000 hours, and LED has the advantages of fast response, small size, power saving, low pollution, high reliability, and suitable for mass production, it will soon become a new star in the lighting market.

With the demand for energy saving and environmental protection, it has become a worldwide trend to use LEDs to construct lighting fixtures that provide lighting in people's daily life. In current technology, LEDs are usually installed on various carriers (such as printed circuit boards) , to make a lighting unit; however, when the LED produces a light source, it will generate a large amount of heat energy at the same time. Therefore, in the above-mentioned lighting unit, the heat energy generated by the LED cannot be effectively dissipated to the outside of the device, thus reducing the luminous efficacy of the LED. ; Taking LED lamps as an example, in order to avoid overheating of LED lamps, a heat dissipation structure will be installed on the LED lamps. The service life of LED lamps is greatly reduced; therefore, how to increase the heat dissipation efficiency of LED lamps to improve the reliability of use has become an important technical issue.

Contents of the invention

The purpose of the present invention is to provide an LED lamp structure, which can effectively reduce the heat energy generated when the LED lamp emits light, and achieve the possibility of simplifying production and quickly realizing mass production.

In order to achieve the above object, the solution of the present invention is:

An LED lamp structure, comprising: a housing, a connector, a light source module and at least one cooling fin, the housing has an accommodating space, the housing includes at least one conduction groove, the conduction groove is set on the outer edge of the housing; the connector is connected to the housing, and the connector receives a working power; the light source module is connected to the housing, and receives the working power to generate a light source; the cooling fins are arranged in the accommodation space of the housing and body into one.

The light source module also includes: a light source board and a shield, the light source board receives the working power to generate the light source; the shield is provided with at least one buckle fitting with the housing, and covers Light source board.

The casing is also provided with at least one fitting groove to fit into the shield.

The fitting groove forms at least one air intake hole.

A central column is arranged in the accommodating space in the housing.

A plurality of convection holes are arranged on the heat dissipation fins.

At least one LED unit and a driving circuit are arranged on the light source board. After receiving the working power, the driving circuit converts and supplies it to the LED unit to generate a light source.

The driving circuit is arranged in the connector.

The shield is provided with at least one perforation.

After adopting the above-mentioned structure, the structure of the LED lamp of the present invention is mainly composed of the light source module and the casing as the main body. The casing is provided with conduction grooves to combine heat dissipation fins. When the lamp structure is working to generate heat, it can Air convection is naturally formed to dissipate heat energy; at the same time, with the aforementioned structure, the complexity of the design structure of the lamp can be greatly reduced, and materials that are easy to produce can be selected to make it quickly enter the mass production stage and effectively reduce costs.

The present invention is provided with conduction grooves on the housing of LED lamps, allowing the conduction grooves to naturally form air convection, combined with heat dissipation fins to dissipate the heat energy generated when LED lamps emit light, thereby reducing the working temperature of LED lamps and improving LED lamps. luminous efficiency and service life. In addition, the simplified design of the conduction groove on the housing and the overall structure enables the housing and other components to use a large number of plastic kits as structural materials, saving a lot of waste of metal materials for LED bulb products. 

Description of drawings

Fig. 1 is a schematic perspective view of the first embodiment of the LED lamp structure of the present invention;

Fig. 2 is the three-dimensional exploded schematic view 1 of the first embodiment of the LED lamp structure of the present invention;

Fig. 3 is a schematic cross-sectional view of heat dissipation and convection of the LED lamp structure of the present invention;

Fig. 4 is a three-dimensional exploded schematic diagram 2 of the first embodiment of the LED lamp structure of the present invention;

Fig. 5 is a three-dimensional exploded schematic view 1 of the second embodiment of the LED lamp structure of the present invention;

Fig. 6 is a perspective exploded schematic diagram 2 of the second embodiment of the LED lamp structure of the present invention;

Fig. 7 is a three-dimensional exploded schematic diagram 1 of the third embodiment of the LED lamp structure of the present invention;

Fig. 8 is a three-dimensional exploded schematic diagram 2 of the third embodiment of the LED lamp structure of the present invention;

Fig. 9 is a three-dimensional exploded schematic diagram of the fourth embodiment of the LED lamp structure of the present invention;

FIG. 10 is an exploded perspective view of a fifth embodiment of the LED lamp structure of the present invention.

Label description:

Light source module 10 Light source board 11 LED unit 111

Shield 13 Perforation 131 Housing 20

Fitting groove 21 Conducting groove 22 Heat dissipation fin 23

Base 24 Connector 30 Center cylinder 40

drive unit 50 .

Detailed ways

In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

First, please refer to FIG. 1 , which is a three-dimensional schematic diagram of the first embodiment of the structure of the LED lamp of the present invention; the structure of the LED lamp disclosed in the present invention can be applied to the lighting of various situational spaces, and it includes a light source module 10 and a housing 20 to It forms the main body of the lamp structure. The structure shown in the figure is a bulb lamp structure. The LED lamp structure can be provided with different connectors 30 to match and install on various connectors. The light source module 10 is designed with a card Fasteners are fitted on the casing 20, and at least one air intake hole is formed by the fitting groove 21, and a plurality of conduction grooves 22 are provided on the surface of the casing 20 to combine cooling fins 23 to form Natural convection (Free Convection), and dissipate the heat energy generated when the LED lamp structure emits light.

Next, the detailed structure of the LED lamp of the present invention will be introduced in detail. Please continue to refer to FIG. 2 , which is a three-dimensional exploded schematic diagram of the first embodiment of the structure of the LED lamp of the present invention.

As shown in the figure, the light source module 10 may be composed of a light source board 11 and a shield 13. The light source board 11 is provided with at least one LED unit 111. The LED unit 111 is responsible for generating the light source, and a COB (Chip On Board) board can be selected. chip-on-chip package) or SMT (Surface Mount Technology) and other processes, at least one notch is provided on the periphery of the light source board 11, which can be used for assembling the housing 20; the shield 13 can be selected to have light transmission Material (such as: glass material, translucent or matte plastic material, etc.), so that it is translucent and has a protective effect on the LED unit 111. The shield 13 is designed with a buckle, which can be buckled The casing 20 covers the light source board 11 , and at the same time, a perforation 131 is provided at an appropriate position of the shield 13 to increase the ventilation effect, and the complete light source module 10 is formed by combining the aforementioned two components.

The housing 20 is provided with a fitting groove 21 and a conduction groove 22, and a connector 30 is connected to the bottom. The housing 20 has an accommodating space in the center, which can be used for air convection, and the connector 30 can accommodate LED lamps. The driving unit 50 ; and the fitting groove 21 can buckle the shield 13 , so that the shield 13 can be firmly locked on the casing 20 .

It can be seen from the figure that the connector 30 is a threaded joint, which is firmly locked with the housing 20 to form an integral body; and the housing 20 has an accommodating space in the center, which can accommodate the central cylinder 40 and cooling fins 23. One end of the central cylinder 40 can be embedded in the cylindrical groove at the center of the bottom edge of the housing 20, and the other end can support the light source board 11 to ensure that the light source module 10 can be firmly combined with the housing 20. The central cylinder 40 It can be made of a material with good thermal conductivity (such as: aluminum, etc.), and through the contact surface with the light source board 11 to assist the lamp to export heat energy, the light source board 11 can be fixed on the housing 20 by means of plugs, etc., so that it is not easy to loosen Detach and cause malfunction. The hollow part of the conduction groove 22 is just enough for the cooling fins 23 to be accommodated and assembled into the surface edge of the housing 20. Please refer to FIG. 4 for the aforementioned structure, which is a three-dimensional exploded schematic diagram of the first embodiment of the structure of the LED lamp according to the present invention 2 , there is no perforation 131 on the shield 13 in this figure, but the air intake and heat dissipation can still be completed through the air holes combined with the buckle and the fitting groove 21 .

Next, please continue to refer to FIG. 3 , which is a schematic diagram of heat dissipation and convection of the structure of the LED lamp of the present invention; 10 is combined with the housing 20 to complete the main body of the LED lamp structure of the present invention. When the LED unit 111 works to generate light, it will cause the light source board 11 to generate heat and heat the air inside the housing 20 through the central column 40 to form a greenhouse. effect, let the hot air in the casing 20 escape outwards through the heat dissipation fins 23 combined with the conduction groove 22, when the hot air escapes out of the casing 20, the air around the casing 20 and the casing The air inside the body 20 will have a density difference, and the external cold air can be sucked into the LED lamp structure from the air intake hole formed by the fitting groove 21, and the cold air can be blown through the perforation 131 on the shield 13. To the light source board 11, natural convection (Free Convection) between the cold and hot air is formed to reduce the heat generated by the light source board 11.

The conduction groove 22 on the surface of the housing 20 is combined with the cooling fins 23 to form a multi-directional opening design, and multi-directional ventilation is easier to form natural convection (Free Convection). The drive circuit can be set in the accommodation space of the connector 30, or the LED lamp structure can be combined with an efficient heat control system, and the light source module 10 can be packaged directly on the light source module 10, so that the light source module has the function of a drive circuit, so that the light source module 10 can receive alternating current (AC) as a working power source.

Without violating the spirit of the same invention, the present invention has another embodiment besides the aforementioned embodiment. Please refer to FIG. 5 , which is a perspective view 1 of the second embodiment of the LED lamp structure of the present invention; this embodiment also includes The light source module 10 and the housing 20 form the main body of the lamp structure. The structure shown in the figure is still a bulb lamp type. The LED lamp structure can be provided with different connectors 30 to be installed on various connectors. The light source module 10 is designed with buckles to be fitted on the casing 20, and at least one air intake hole is formed by the fitting groove 21, and the shield 13 is provided with a perforation 131 for ventilation, and the casing 20 shows The edge is provided with a plurality of conducting grooves 22 and embedded heat dissipation fins 23 to form natural convection (Free Convection) to dissipate the heat energy generated when the LED lamp structure is working. The heat dissipation fins 23 in this embodiment It is fixed by the base 24, and the contact area with the light source board 11 is increased by the base 24, so that the heat dissipation effect is better.

Next, the second embodiment of the structure of the LED lamp of the present invention will be further described. Please refer to FIG. 6 , which is a three-dimensional exploded schematic diagram 2 of the second embodiment of the structure of the LED lamp of the present invention.

It can be seen from the figure that the light source module 10 can include a light source board 11 and a shield 13. The structure of this embodiment is similar to that of the first embodiment, so it will not be repeated here. The housing 20 includes a base 24, a conduction groove 22 and is connected with a connector 30, the housing 20 has a housing space in the center, the difference is that the housing 20 does not independently add a central cylinder, but directly injects the cylinder with the housing 20 to make an integral molding, The cooling fins 23 can just be embedded in the grooves of the cylinder and fixed by the base 24. In this embodiment, the hollows of the conduction grooves 22 can be accommodated by the cooling fins 23 and assembled into the housing 20. The surface edge increases the contact surface with the light source board 11 by bonding the heat dissipation fins 23 and the base 21, so that the heat dissipation fins 23 can quickly discharge the heat energy on the light source board 11 and the heat dissipation fins 23 during air convection. Outside the housing 20 , the performance of air convection and heat dissipation is further increased, and the cover 13 shown in the figure does not have a perforation 131 , but the heat dissipation can still be accomplished through the vent holes in which the buckle and the fitting point 21 are combined.

The present invention has other implementations besides the above-mentioned embodiments. For the assembled and fixed appearance, please refer to FIG. 7 , which is an assembled perspective view 1 of the third embodiment of the structure of the LED lamp of the present invention.

This embodiment also includes a light source module 10 and a housing 20 to form the main body of the lamp structure. The structure shown in the figure is still a bulb lamp type. The LED lamp structure can be provided with different connectors 30 to Installed on various joints, the light source module 10 is designed with buckles to fit on the housing 20, and at least one air intake hole is formed by the fitting groove 21, and the shield 13 is provided with Perforations 131 are used for ventilation, and the surface of the shell 20 is provided with a plurality of conduction grooves 22 to cooperate with the embedded heat dissipation fins 23 to form a natural convection (Free Convection) to dissipate the heat generated by the LED lamp structure when it is working. ; The only difference between this embodiment and FIG. 5 is that a plurality of convection holes are provided on the cooling fins 23 to improve the efficiency of heat dissipation.

Of course, this embodiment can also be made without the perforation 131 on the shield 13, and the heat dissipation can still be completed through the vent hole combined with the buckle and the fitting point 21. Since other components are the same as those shown in FIG. 7, No more details are given here; for its implementation, please refer to FIG. 8 , which is an assembly perspective view 2 of the third embodiment of the structure of the LED lamp of the present invention.

In addition to the above-mentioned embodiments, the present invention has yet another embodiment. Its assembled and fixed appearance can refer to FIG. 9 , which is a schematic diagram of the assembly of the fourth embodiment of the structure of the LED lamp of the present invention.

This embodiment also includes a light source module 10 and a housing 20 to form the main body of the lamp structure. The structure shown in the figure is still a bulb lamp type. The LED lamp structure can be provided with different connectors 30 to Installed on various joints, the light source module 10 is designed with buckles to fit on the housing 20, and at least one air intake hole is formed by the fitting point 21, and the shield 13 is provided with perforations 131 to ventilate, and the surface of the shell 20 is provided with a plurality of conducting grooves 22 to cooperate with the embedded heat dissipation fins 23 to form a natural convection (Free Convection) to dissipate the heat energy generated when the LED lamp structure is working; The difference between an embodiment and FIG. 5 is that the heat dissipation fin 23 is designed as an inner lamp cup, and the shield 13 is provided with perforations 131 to improve heat dissipation efficiency.

Finally, please refer to FIG. 10 , which is an assembly schematic diagram of the fifth embodiment of the structure of the LED lamp according to the present invention; this implementation is similar to that in FIG. The cup-shaped heat dissipation fins 23 are further provided with a plurality of convection holes to improve heat dissipation efficiency. Since other components are the same as those shown in FIG. 9 , they will not be repeated here.

Therefore, according to the LED lamp structure disclosed in the present invention, a LED lamp structure that can use passive natural convection (Free Convection) to achieve heat dissipation is proposed, which is applicable to the design of various LED lamp structures. Combined with the design of heat dissipation fins, it is especially suitable for the application of various high-power LED lamp structures; with the help of natural convection heat dissipation, the housing of the LED lamp structure of the present invention can use a large number of plastic materials as structural kits, saving a lot The waste of metal materials (aluminum, etc.) in LED lighting products can further solve the disadvantages of labor-consuming, time-consuming and material-intensive mold opening of metal LED lighting products, and at the same time improve its shape plasticity, which can reach mass production faster than ordinary metal LED lighting products on the market. stage.

The present invention combines the concept of air convection in the structural design, the design of the airflow conduction groove passing through the periphery of the shield, and the hollow structure of the plastic shell combined with the heat dissipation fin punching mesh material, so that the temperature difference between the inside and outside of the shell can reach convection when the lamp emits light. When the conditions are right, the hot air flow can pass through the light source board to the hollow structure of the housing and the heat dissipation fins, so that the air inside and outside the housing can convect to achieve the purpose of adjusting the temperature of the LED lamp, and then play the role of auxiliary heat dissipation. Although the present invention uses the aforementioned The preferred embodiment is disclosed above, but it is not intended to limit the present invention, such as: the perforation can be arranged in each appropriate area on the shield (or not), as long as it can achieve natural convection (Free Convection), It is not limited to its specific form; and the connection type of the various parts of the LED lamp of the present invention is not limited to the embodiment without violating the spirit of the same invention, such as the position of the driving circuit, or the material of the housing, as long as it does not deviate from the Within the patent scope of the present invention,

The above-mentioned embodiments and drawings do not limit the form and style of the product of the present invention, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims (9)

1. a LED fitting structure, is characterized in that, includes: a housing, a connector, a light source module and at least one radiating fin, in housing, there is an accommodation space, and this housing comprises at least one conduction trough, and this conduction trough is arranged at housing table edge; Connector is connected with housing, and this connector receives a working power; Light source module is connected with housing, and receives working power generation light source; Radiating fin is arranged in the accommodation space of housing and is integrated with housing.

2. LED fitting structure as claimed in claim 1, is characterized in that: described light source module also includes: a light source board and a guard shield, and this light source board receives described working power to produce light source; This guard shield is provided with at least one fastener and described housing tabling, and coated light source board.

3. LED fitting structure as claimed in claim 2, is characterized in that: on described housing, be also provided with at least one embeded slot and described guard shield is chimeric.

4. LED fitting structure as claimed in claim 3, is characterized in that: described embeded slot forms at least one air admission hole.

5. LED fitting structure as claimed in claim 1, is characterized in that: in the accommodation space in described housing, be provided with a center column.

6. LED fitting structure as claimed in claim 1, is characterized in that: on described radiating fin, be provided with a plurality of convection holes.

7. LED fitting structure as claimed in claim 2, is characterized in that: on described light source board, be provided with at least one LED unit and one drive circuit, this drive circuit receives after described working power, and conversion provides gives this LED unit generation light source.

8. LED fitting structure as claimed in claim 7, is characterized in that: described drive circuit is arranged in connector.

9. LED fitting structure as claimed in claim 2, is characterized in that: on described guard shield, be provided with at least one perforation.

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