TWI392119B - Electroluminescent and thermoelectric composite module - Google Patents

Description

Electroluminescence and heating composite module

The invention relates to a composite module of electroluminescence and heat generation, in particular to a composite module of a light-emitting diode electroluminescence and heat generation having both illumination and warmth effects.

With the improvement of lighting technology, light emitting diodes (LEDs) have been widely used in the assembly and manufacture of various energy-saving lamps due to their high brightness, high service life and low energy consumption, and they have gradually It replaces traditional lighting fixtures such as halogen lamps and fluorescent lamps. In general, the light-emitting diodes are classified into inorganic light-emitting diodes (also known as LEDs) and organic light-emitting diodes (OLEDs), and most of the current applications in lighting fixtures belong to inorganic light-emitting diodes. Structurally, the inorganic light-emitting diode system is composed of P-type and N-type semiconductor compounds. When electrons and holes are combined in the interface of P-type and N-type semiconductor compounds, different energy levels will be generated due to energy level differences. Physical phenomena such as transfer, such as the generation of light or heat. In fact, the light extraction efficiency of current inorganic light-emitting diodes is not 100%, which is caused by the partial energy conversion into thermal energy. Further, when the temperature of the inorganic light-emitting diode is increased by heat, the light extraction efficiency of the P-type and N-type semiconductor compounds is further lowered.

In order to avoid temperature rise affecting light extraction efficiency, many lighting fixtures are designed to add heat sinks. For example, the invention patent of the Republic of China Publication No. I298554 discloses an LED lamp having a high heat dissipation effect, which has a lamp body for accommodating a plurality of light-emitting diodes therein, and a base of the lamp body can be fixed to the ceiling Or a wall, and the base of the lamp body is provided with a plurality of chambers, and each chamber is filled with a high thermal conductive material which is helpful for heat conduction and heat dissipation. Thereby, the high temperature generated when each of the light-emitting diodes emits light is quickly led out and diffused into the air around the ceiling (or the wall) of the lamp to eliminate the decrease of the light-emitting power of the light-emitting diode due to overheating, thereby affecting the illumination. The problem of brightness. During installation, the LED luminaire is fixed to the indoor ceiling or wall by the base of the luminaire body, and the illuminating diode is directed downward to emit light to provide illumination. However, the LED lamp is mainly for providing illumination function, so that only the heat energy generated by the light-emitting diode is regarded as waste heat to be excluded from the lamp, and is not utilized well. At the same time, since the thermal energy is concentrated between the light-emitting diode and the base of the lamp body and the base is attached to the ceiling (or the wall), the actual heat dissipation effect of the natural energy convection around the heat is very limited.

Furthermore, the new patent of the Republic of China No. M348199 discloses a light-emitting diode lighting module, which is mainly provided with a substrate, a reflective cover and an outer cover on a heat dissipation plate, wherein the substrate is formed with a connection. a plurality of light-emitting diodes are connected to each other, and a plurality of reflective cups are formed on the reflective cover. The bottom of the reflective cups can pass through the light-emitting diodes on the substrate, and the outer cover is a light-permeable cover. It is suitably clipped to the heat sink by using a plurality of elastic clips. During installation, the light-emitting diode lighting module is fixed on the indoor ceiling or wall by using the heat-dissipating plate, and the light-emitting diode is directed downward to emit light to provide illumination. However, the light-emitting diode lighting module still mainly provides illumination function, so only the heat energy generated by the light-emitting diode is regarded as waste heat, and the heat-dissipating plate is excluded from the periphery of the lamp, and is not utilized well. At the same time, since the thermal energy is concentrated between the light-emitting diode and the heat dissipation plate and the heat dissipation plate is attached to the ceiling (or the wall), the actual heat dissipation effect of the thermal energy to the surrounding natural convection is very limited.

On the other hand, since the lighting devices of the above various conventional light-emitting diodes mainly provide illumination functions, it is necessary to use the light-emitting diode components that meet the regular lighting standards to provide optimal brightness, but this is not conducive to reducing the lamps. The cost of parts, while the above-mentioned conventional lighting devices can not be used to produce special decorative lighting effects on the ceiling or wall. At present, the industry inevitably produces some LED dipoles that do not conform to the formal lighting standards during the production of LEDs, which may have lower light extraction efficiency and generate more waste heat, but However, it has a lower selling price, but there are currently no lighting devices available on the market that can utilize these secondary products.

Therefore, it is necessary to provide a lighting module for a light-emitting diode, which enables the use of a light-emitting diode sub-product, and can properly utilize the heat energy generated by the light-emitting diode, thereby solving the problems of the prior art.

The main object of the present invention is to provide a composite module for electroluminescence and heat generation, which uses a bracket to suspend the lamp body on a fixed surface, and the light emitting side of the lamp body faces the fixed surface, and simultaneously radiates the heat radiation side of the lamp body. Facing the space to be insulated, the light-emitting diode on the light-emitting side can be used to provide a wall-lighting effect and the heat-radiating function through the heat-radiating side of the heat-radiating side, thereby increasing the functionality of the lamp and its added value, and contributing to Improve heat dissipation efficiency.

A secondary object of the present invention is to provide a composite module of electroluminescence and heat generation, which uses a light-emitting diode sub-product having lower light extraction efficiency and generating more heat energy to provide wall surface lighting effect and electric heating. Warmth function, which reduces the cost of assembly of composite lamps.

Another object of the present invention is to provide a composite module for electroluminescence and heat generation, which is capable of improving the conversion of light-emitting diodes into heat by changing the material type or layered structure of the semiconductor compound of the light-emitting diode. The ratio, in turn, improves the electric heating effect of the lamp.

To achieve the above objective, the present invention provides a composite module of electroluminescence and heat generation, comprising at least one bracket, a lamp body, a plurality of light emitting diode elements, and a heat radiating plate. The bracket has a first end and a second end. The first end is fixed on a fixing surface, and the second end is coupled to the lamp body. The luminaire body has a chamber, a illuminating side and a heat radiating side, wherein the illuminating side faces the fixing surface, and the heat radiating side faces a space opposite to one of the fixing surfaces. The chamber is for accommodating the light emitting diode element. The light emitting diode element emits light toward the fixed surface via a light emitting side of the lamp body. The heat radiation plate is disposed at least on a heat radiation side of the lamp body to radiate heat energy generated by the light emitting diode toward the space to be insulated.

In an embodiment of the invention, the heat radiation plate is convexly formed to form at least one heat radiation fin.

In an embodiment of the invention, the light emitting side of the lamp body is curved.

In an embodiment of the invention, the heat radiation side of the lamp body and the heat radiation plate are curved.

In one embodiment of the invention, the light emitting diode component is incorporated into a printed circuit board or a flexible circuit board within the housing.

In an embodiment of the invention, the illuminating side of the luminaire body further has a concentrating cover.

In an embodiment of the invention, the heat radiating side of the lamp body further has a heat collecting cover.

In an embodiment of the invention, the heat radiating plate further has a temperature display element.

In an embodiment of the invention, the temperature display element is a display panel or a thermochromic ink.

In an embodiment of the invention, the LED component has a P-type semiconductor compound and an N-type semiconductor compound, and converts electrical energy into a ratio of light energy to thermal energy of 70%: 30% to 50%: 50%. between.

In an embodiment of the invention, the end face of the P-type semiconductor compound of the light-emitting diode element further has a barrier layer or a hole transport layer to generate thermal energy.

In an embodiment of the present invention, the end face of the N-type semiconductor compound of the LED component further has a barrier layer or an electron injection layer to generate thermal energy.

In an embodiment of the invention, the light emitting diode element is additionally provided with a resistive layer between the P-type and N-type semiconductor compounds to generate thermal energy.

In one embodiment of the invention, the light emitting diode device is doped with a resistive material on at least one of the P-type and N-type semiconductor compounds to generate thermal energy.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIG. 1 , the composite module of electroluminescence and heat generation according to the first embodiment of the present invention mainly comprises at least one bracket 1 , a lamp body 2 , a plurality of light emitting diode elements 3 , and a heat radiation plate ( Heat radiation plate)4. The electroluminescent and heat-generating composite module of the present invention can be fixed on a fixed surface 5, for example, in the embodiment, the fixed surface 5 is exemplified by an indoor ceiling, and the composite module is used for The fixing surface 5 provides a wall surface lighting effect, and provides an electric heating warming effect to the space to be insulated and the user in the vicinity of the lamp. However, the fixed surface 5 is not limited thereto, and may also be a ceiling of a building, a vehicle or other vehicle, an inner wall or an outer wall, etc., which will be described first.

Referring to FIG. 1 again, the stent 1 of the first embodiment of the present invention can be selected from various support structures suitable for use in a chandelier, and the present invention is not limited to the length and the like. In this embodiment, the bracket 1 is selected from two hollow rods, which may be made of a thermal insulating material or a heat conductive material such as plastic or metal, but is not limited thereto. The bracket 1 has a first end 11 and a second end 12. In this embodiment, the first end 11 is preferably a base, which can be fixed on the fixing surface 5 by a plurality of screws or nails (not shown), but in other embodiments, The first end 11 may also be a pivoting seat (not shown), wherein the rod of the bracket 11 is pivotally coupled to the first end 11; alternatively, the first end 11 may also be a quick release seat. Or other equivalent fixing elements, even directly inserted into the fixing surface 5. Furthermore, the second end 12 is preferably inserted into the lamp body 2 by means of thread butt jointing, welding, screw locking, barb snapping or adhesive bonding to suspend the lamp body 2 from The fixing surface 5 is on. In addition, the inside of the bracket 11 itself is allowed to pass through a wire 13 to guide an external power source into the lamp body 2. In another embodiment, the bracket 11 itself may also be selected from a flexible wire such as a rope or a wire.

Referring to FIG. 1 again, the lamp body 2 of the first embodiment of the present invention is selected from a hollow casing, and its shape can be changed according to actual use requirements or decorative design. The lamp body 2 is preferably made of a thermal insulating material or a heat conductive material such as plastic or metal, but is not limited thereto. The lamp body 2 has a chamber 21, a light emitting side 22 and a heat radiating side 23. The chamber 21 is for accommodating the LED component 3. The light-emitting side 22 and the heat-radiating side 23 are respectively located on the lower two sides of the chamber 21, wherein the light-emitting side 22 faces the fixed surface 5, and the heat-radiating side 23 faces a space opposite to the fixed surface 5 to be insulated. The light-emitting side 22 usually has a plurality of mounting holes 221 or an opening (not labeled) for causing the light-emitting diode element 3 to emit light toward the fixing surface 5 via the mounting hole 221 (or opening) to produce decorative Lighting effect. The light-emitting side 22 may also be provided with a transparent or colorless transparent cover plate, a diffusion plate or a flexible plate (not shown) to provide different light effects. Furthermore, the heat radiation side 23 refers to the other side facing away from the light-emitting side 22, and the heat radiation side 23 is used to bond the heat radiation plate 4.

Referring to FIGS. 1 and 2 again, the light-emitting diode element 3 of the first embodiment of the present invention may be selected from various types of inorganic light-emitting diodes (LEDs), and the present invention is not limited to the type, but Considering the dual effects of illumination and electrothermal insulation, the LED component 3 selected by the present invention preferably has appropriate light extraction efficiency and must be accompanied by sufficient thermal energy, for example, the LED component 3 converts electrical energy into light energy. The ratio of heat to heat can be selected to be between 70%: 30% to 50%: 50%. In an embodiment, the LED component 3 of the present invention may be selected from a light-emitting diode that conforms to a general regular illumination standard; but may also be selected from a light-emitting diode sub-product that does not conform to the regular illumination standard. Low light extraction efficiency and more waste heat, but suitable for the composite module of the present invention. In another embodiment, the present invention can also be designed with a light emitting diode configuration that produces the desired ratio of light energy to thermal energy. For example, as shown in FIG. 2, the light-emitting diode element 3 is usually composed of a P-type semiconductor compound 31 and an N-type semiconductor compound 32, but the present invention allows the end face of the P-type semiconductor compound 31 to have another A barrier layer or a hole transport layer (not shown) to generate more thermal energy. Similarly, the end face of the N-type semiconductor compound 32 may further have a barrier layer or an electron injection layer (not shown) to generate more thermal energy. Alternatively, the present invention may alternatively provide a resistive layer (not shown) between the P-type and N-type semiconductor compounds 31, 32 to generate more thermal energy. Alternatively, at least one of the P-type and N-type semiconductor compounds 31, 32 is selectively doped with a resistive material to generate more thermal energy. When the type is selected and assembled, the LED component 3 can be electrically connected to a substrate 30 by soldering or socket. In the present invention, the substrate 30 is selected from a rigid printed circuit board. The substrate 30 is received in the chamber 21 of the lamp body 2 and electrically connected to the wire 13 during assembly. The LED component 3 is inserted into the mounting hole 221 or opposite to the mounting hole 221 to emit light toward the fixing surface 5.

Referring to Fig. 1, the heat radiating plate 4 of the first embodiment of the present invention is a plate made of a heat conductive metal such as aluminum or copper or an alloy material. In the present invention, the heat radiation plate 4 can be selectively coupled to the heat radiation side 23 of the lamp body 2 by means of a screw lock, a barb jam, a groove insert, a thread butt joint, a welding or an adhesive joint. This combination is not intended to limit the invention. The heat radiating plate 4 is disposed at least on the heat radiating side 23 of the lamp body 2, but may also extend to the respective side surfaces of the lamp body 2. In an embodiment, the heat radiation plate 4 may also be directly formed integrally by at least the heat radiation side 23 of the lamp body 2. Furthermore, in the present invention, the outer surface of the heat radiating plate 4 is preferably convexly formed to form at least one heat radiating fin 41, and the heat radiating fin 41 is arranged in the heat radiation in an appropriate shape, length, width and number. The outer surface of the plate 4 is used to increase the heat exchange area. With the above configuration, when the composite module of electroluminescence and heat generation according to the first embodiment of the present invention is used, the light-emitting diode element 3 emits light toward the fixed surface 5 via the light-emitting side 22 of the lamp body 2. At the same time, the heat radiating plate 4 disposed on the heat radiating side 23 of the lamp body 2 can radiate heat generated by the light emitting diode 3 toward a space to be insulated (such as an indoor space) opposite to the fixed surface 5. Thereby, the invention not only can provide the wall surface lighting effect, but also can additionally provide the electric heating function, and helps to increase the heat dissipation efficiency, thereby increasing the functionality of the lamp and its added value.

Referring to FIG. 3, the electroluminescent and heat-generating composite module of the second embodiment of the present invention is similar to the first embodiment of the present invention, but the difference between the two is characterized by: the second embodiment The composite module for illuminating and heating further selectively sets a plurality of components, for example, adding a concentrating cover 24 to the illuminating side 22 of the illuminating body 2 to collect the light emitted by the illuminating diode element 3 Fixed in a specific area of the surface 5. Furthermore, a heat collecting cover 25 may be further added to the heat radiating side 23 of the lamp body 2 to collect the heat energy generated by the light emitting diode element 3 via the heat radiating plate 4 and the heat collecting cover 25 in a specific state. Want to keep warm in the space area. Furthermore, the outer surface of the heat radiation plate 4 may alternatively be provided with a temperature display element 42, which may be selected from a display panel or a thermochromic ink. When the temperature display component 42 is selected from the display panel, it is equipped with a temperature detecting circuit (not shown). After the temperature detecting circuit detects the temperature of the heat radiating plate 4, the digital temperature value can be displayed by the display panel. In order to let the user under the lamp know the instantaneous temperature of the electric heating. Alternatively, when the temperature display element 42 is selected from a thermochromic ink, the thermochromic ink can be formed into a thermometer shape or other decorative pattern shape, and can change color with the temperature of the heat radiation plate 4 to make the underside of the lamp The user knows the instantaneous temperature of the electric heating.

Referring to FIG. 4, the composite module of electroluminescence and heat generation according to the third embodiment of the present invention is similar to the first embodiment of the present invention, but the difference between the two is characterized by: the electricity of the third embodiment The illuminating and heating composite module further selects to change the shape of the illuminating body 2, for example, the illuminating side 22 and the heat radiating side 23 of the illuminating body 2 are curved, and the arc length of the illuminating side 22 is smaller than the heat. The arc of the radiation side 23 is long, and the heat radiating plate 4 is also shaped in an arc shape. Thereby, the present invention can concentrate the light emitted by the light-emitting diode element 3 in a specific region of the fixed surface 5 while expanding the range of the space to be insulated which the heat radiation plate 4 can heat. In order to match the curved shape of the lamp body 2, the substrate 30 of the LED component 3 is preferably selected from a flexible circuit board. In another embodiment, the arc length of the light-emitting side 22 may be greater than the arc length of the heat radiation side 23 (not shown), thereby expanding the light-emitting diode element 3 to illuminate the fixed surface. The range of 5, and the heat energy generated by the light-emitting diode element 3 is concentrated in the specific space to be insulated via the heat radiation plate 4. In still another embodiment, the light-emitting side 22 may be curved, but the heat radiation side 23 may have a flat shape; or the light-emitting side 22 may have a flat shape, but the heat radiation side 23 may be curved. They are all possible ways of implementing the invention.

As described above, the illumination device is mainly provided for providing the illumination function, and only the thermal energy generated by the LED is regarded as waste heat. The heat dissipation plate is used to exclude the periphery of the lamp, and is not utilized well. The invention of FIGS. 1 to 4 suspends the lamp body 2 on the fixing surface 5 (such as a ceiling or a wall) by using the bracket 1 and makes the lamp body 2 The light-emitting side 22 faces the fixed surface 5, and simultaneously faces the heat-radiating side 23 of the lamp body 2 and the heat-radiating plate 4 toward the space to be insulated, so that the light-emitting diode 3 of the light-emitting side 22 can be used to provide the wall surface lighting effect. And providing the electric heat preservation function through the heat radiation plate 4 of the heat radiation side 23, thereby increasing the functionality of the lamp and its added value, and helping to improve the heat dissipation efficiency. Furthermore, the light-emitting diode element 3 of the present invention can be selected not only from a light-emitting diode conforming to a general regular illumination standard, but also from a light-emitting diode secondary product, which has a lower light extraction efficiency and is generated. More heat, but it is suitable for providing wall lighting effect and electric heating function, thereby reducing the assembly cost of composite lamps. In addition, the present invention can also improve the conversion of the electrical energy of the LED component 3 into thermal energy by changing the material type or layered structure of the P-type and N-type semiconductor compounds 31, 32 of the LED component 3. Proportion, and thus effectively improve the electric heating effect of the lamp.

The present invention has been disclosed in its preferred embodiments, and is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

1. . . support

11. . . First end

12. . . Second end

13. . . wire

2. . . Lamp body

twenty one. . . Room

twenty two. . . Illuminated side

221. . . Mounting holes

twenty three. . . Heat radiation side

twenty four. . . Condenser

25. . . Heat collecting hood

3. . . Light-emitting diode component

30. . . Substrate

31. . . P-type semiconductor compound

32. . . N-type semiconductor compound

4. . . Thermal radiant panel

41. . . Heat radiation fin

42. . . Temperature display element

5. . . Fixed surface

Fig. 1 is a sectional view showing the combination of a composite module of electroluminescence and heat generation according to a first embodiment of the present invention.

Fig. 2 is a schematic view showing the structure of a light-emitting diode element according to a first embodiment of the present invention.

Fig. 3 is a sectional view showing the combination of a composite module of electroluminescence and heat generation according to a second embodiment of the present invention.

Fig. 4 is a sectional view showing the combination of a composite module of electroluminescence and heat generation according to a third embodiment of the present invention.

1. . . support

11. . . First end

12. . . Second end

13. . . wire

2. . . Lamp body

twenty one. . . Room

twenty two. . . Illuminated side

221. . . Mounting holes

twenty three. . . Heat radiation side

3. . . Light-emitting diode component

30. . . Substrate

4. . . Thermal radiant panel

41. . . Heat radiation fin

5. . . Fixed surface

Claims (16)

A composite module of electroluminescence and heat generation, comprising: a lamp body suspended on a fixed surface, the lamp body having a light emitting side and a heat radiating side, the light emitting side facing the fixing surface, the heat The radiation side faces opposite to one of the fixed surfaces to be insulated; and a plurality of LED components are received in the lamp body, and emit light through the light emitting side of the lamp body toward the fixing surface, and the lamp The heat radiating side of the body radiates thermal energy generated by the light emitting diode toward the space to be insulated. The composite module of electroluminescence and heat generation according to claim 1, further comprising at least one bracket having a first end and a second end, wherein the first end is fixed on the fixing surface, And the second end is coupled to the lamp body. The composite module of electroluminescence and heat generation according to claim 1 , further comprising a heat radiation plate disposed at least on a heat radiation side of the lamp body to radiate thermal energy toward the space to be insulated. The composite module of electroluminescence and heat generation according to claim 3, wherein the heat radiation plate is convexly formed to form at least one heat radiation fin. The composite module of electroluminescence and heat generation according to claim 1, wherein the light-emitting side of the lamp body is curved. The composite module of electroluminescence and heat generation according to claim 3, wherein the heat radiation side of the lamp body and the heat radiation plate are curved. The composite module of electroluminescence and heat generation according to claim 1, wherein the light emitting diode element is combined on a printed circuit board or a flexible circuit board in the body of the lamp. The composite module of electroluminescence and heat generation according to claim 1, wherein the illuminating side of the luminaire body further has a concentrating cover. The composite module of electroluminescence and heat generation according to claim 1, wherein the heat radiation side of the lamp body further has a heat collecting cover. The composite module of electroluminescence and heat generation according to claim 3, wherein the heat radiation plate further has a temperature display element. The composite module of electroluminescence and heat generation according to claim 10, wherein the temperature display element is a display panel or a thermochromic ink. The composite module of electroluminescence and heat generation according to claim 1, wherein the light emitting diode element has a P-type semiconductor compound and an N-type semiconductor compound, which converts electrical energy into light energy and heat energy. The ratio is between 70%: 30% to 50%: 50%. The composite module of electroluminescence and heat generation according to claim 1, wherein the light-emitting diode element has a barrier layer or a hole transport layer on an end surface of a P-type semiconductor compound to generate heat energy. . The composite module of electroluminescence and heat generation according to claim 1, wherein the light-emitting diode element has a barrier layer or an electron injection layer on an end surface of an N-type semiconductor compound to generate thermal energy. The composite module of electroluminescence and heat generation according to claim 1, wherein the light-emitting diode element is further provided with a resistive layer between a P-type semiconductor compound and an N-type semiconductor compound. To generate heat. The composite module of electroluminescence and heat generation according to claim 1, wherein the light emitting diode element is doped with a resistive material on at least one of a P-type semiconductor compound and an N-type semiconductor compound. To generate heat.