1. Field of Invention
The invention relates to an illuminating device and, in particular, to a light-emitting diode illuminating device that can be installed on a machining platform.
2. Related Art
Generally speaking, an illuminating device is usually provided at blade machining position of a machining platform. Such an illuminating device usually uses lamps or light bulbs as its light source. However, these conventional lamps or light bulbs have the drawbacks of high temperature and power consumption. Moreover, disposals of fluorescent lamps, neon lights, and quartz light bulbs will result in environmental problems. Therefore, the light-emitting diodes (LED's) have been developed in recent years to be the light source of the working lamp.
Although the LED has the advantages of low power consumption, long device lifetime, zero warm-up time, and quick responses, the luminosity of a normal LED is worse than a conventional light bulb or lamp. Therefore, high-power LED's are used as the illuminating light source. Although such a high-power LED can provide a better luminosity, its temperature rises after continuously emitting light for some time. This affects its light-emitting efficiency. It is thus seen that a good heat-dissipating mechanism is necessary for a high-power LED to be the light source of an illuminating device.
Consequently, it is a focus topic for researchers to develop an LED illuminating device with high luminosity and good heat dissipation.
In view of the foregoing, the invention discloses an illuminating device that uses LED's as its light source. The LED's are disposed on a substrate with good heat dissipation. Therefore, in addition to provide high-luminosity light, the invention has a longer lifetime due to its good heat-dissipating property.
The disclosed illuminating device includes a heat-dissipating substrate, a first separator, at least one LED light source module, a power module, an optical film, a transparent board, two protection covers, and a waterproof stripe. The heat-dissipating substrate has an accommodating tank, a top surface, and at least one heat-dissipating surface. The heat-dissipating surface is outside the accommodating tank. The top surface has an opening that exposes the accommodating tank. The first separator is inserted in the accommodating tank to separate a first accommodating space and a second accommodating space. The first separator has a connecting hole. The LED light source module is disposed in the second accommodating space and in touch with the heat-dissipating substrate. The power module is disposed in the first accommodating space and is electrically connected with the LED light source module via the connecting hole on the first separator.
In this embodiment, the transparent board is fixed on the top surface of the heat-dissipating substrate. The protection covers are fixed on both ends of the heat-dissipating substrate. Along with the transparent board, the protection covers seal the power module and the LED light source module in the first accommodating space and the second accommodating space, respectively. At least one of the protection covers has a through hole. The power module is electrically connected with an external power supply via the through hole.
The invention provides an illuminating device comprising a heat-dissipating substrate, a first separator, at least one LED light source module, a power module, an optical film, a transparent board, two protection covers, and a waterproof stripe. The heat-dissipating substrate has an accommodating tank, a top surface, and at least one heat-dissipating surface. The heat-dissipating surface is outside the accommodating tank. The top surface has an opening that exposes the accommodating tank. The first separator is inserted in the accommodating tank to separate a first accommodating space and a second accommodating space. The first separator has a connecting hole. The LED light source module is disposed in the second accommodating space and in touch with the heat-dissipating substrate. The power module is disposed in the first accommodating space and is electrically connected with the LED light source module via the connecting hole on the first separator.
In this embodiment, the optical film is disposed above the LED light source module. The transparent board is fixed on the top surface of the heat-dissipating substrate. The protection covers are fixed on both ends of the heat-dissipating substrate. Along with the transparent board, the protection covers seal the power module and the LED light source module in the first accommodating space and the second accommodating space, respectively. At least one of the protection covers has a through hole. The power module is electrically connected with an external power supply via the through hole.
The invention provides an illuminating device comprising a heat-dissipating substrate, a first separator, at least one LED light source module, a power module, an optical film, a transparent board, two protection covers, and a waterproof stripe. The heat-dissipating substrate has an accommodating tank, a top surface, and at least one heat-dissipating surface. The heat-dissipating surface is outside the accommodating tank. The top surface has a first groove extended along the accommodating tank and an opening that exposes the accommodating tank. The first separator is inserted in the accommodating tank to separate a first accommodating space and a second accommodating space. The first separator has a connecting hole. The LED light source module is disposed in the second accommodating space and in touch with the heat-dissipating substrate. The power module is disposed in the first accommodating space and is electrically connected with the LED light source module via the connecting hole on the first separator.
In this embodiment, the optical film is disposed above the LED light source module. The transparent board is fixed on the top surface of the heat-dissipating substrate. The protection covers are fixed on both sides of the heat-dissipating substrate. Along with the transparent board, the protection covers seal the power module and the LED light source module in the first accommodating space and the second accommodating space, respectively. The contact surface between each of the protection covers and the heat-dissipating substrate has a second groove surrounding one end of the accommodating tank. At least one of the protection covers has a through hole. The power module is electrically connected with an external power supply via the through hole. The waterproof stripe has a body part and two extension parts. The extension parts are connected to both ends of the body part, respectively. The body part is embedded in a first embedding slot of the heat-dissipating substrate. The extension parts are embedded in second embedding slots of the protection covers.
The difference between the invention and the prior art is in that the invention utilizes LED's as its light source and uses a heat-dissipating substrate with at least one heat-dissipating surface to support the LED light source module. The heat produced by the working LED chip can thus be quickly removed. Using this technique, the disclosed illuminating device can simultaneously have the advantages of high luminosity, lower power consumption, good light-emitting efficiency, and long lifetime.
The invention will become more fully understood from the detailed description given herein below illustration only, and thus is not limitative of the present invention, and wherein:
The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
The top surface 114 of the heat-dissipating substrate 110 has an opening 113 for exposing the accommodating tank 112. As shown in
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It is noted that although
Following the above description, the LED light source module 130 includes a circuit board 132 and several LED packaging structures 134 disposed on the circuit board 132 in an array. As shown in
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On the other hand, as shown in
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Besides, since the transparent board 160 in this embodiment is fixed on the top surface 114 of the heat-dissipating substrate 110 via a fixing element 190, the transparent board 160 and the top surface 114 of the heat-dissipating substrate 110 have the corresponding fixing holes 192a, 192b, respectively. The fixing element 190 goes through the fixing holes 192a and 192b in sequence, locking the transparent board 160 on the top surface 114 of the heat-dissipating substrate 110. In particular, the fixing element 190 can be a screw, rivet, or equivalent.
Both ends of the heat-dissipating substrate 110 are fixed with the protection covers 170a, 170b to seal the power module 140 and the LED light source module 130 in the first accommodating space 115 and the second accommodating space 117, respectively. The protection covers 170a, 170b in this embodiment are connected by embedding to both ends of the heat-dissipating substrate 110 using screw, rivets, or equivalents.
In addition, the protection cover 170a near the first accommodating space 115 has a through hole 174. The power module 140 disposed in the first accommodating space 115 is electrically connected with an external power supply (not shown) via the through hole 174. The protection covers 170a, 170b have vertical extension parts 176a, 176b, respectively. The vertical extension part 176a has a positioning groove 177a, and the vertical extension part 176b has a positioning groove 177b. The illuminating device 100 is installed and positioned on a machining platform (not shown) using the positioning grooves 177a, 177b for illumination.
However, the invention does not specify the connection method between the protection covers 170a, 170b and the heat-dissipating substrate 110. In the third embodiment of the invention, as shown in
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In more detail, the waterproof stripe 180 has a body part 182 and two extension parts 184 connected to both ends of the body part 182, respectively. The body part 182 is embedded in the first embedding groove 118 on the top surface 114 of the heat-dissipating substrate 110. The extension parts 184 on both ends of the body part 182 are embedded in the second embedding grooves 172 of the protection covers 170a, 170b, respectively. Consequently, the disclosed illuminating device 100 uses the waterproof stripe to effectively prevent moisture from entering and damaging the LED light source module 130 therein.
In summary, the disclosed illuminating device uses LED's as its light sources. It utilizes a heat-dissipating substrate with at least one heat-dissipating surface to support the LED light source module. The heat produced by the working LED chips can be rapidly removed. Therefore, the disclosed illuminating device has simultaneously the advantages of high luminosity, low power consumption, good light-emitting efficiency, and long lifetime.
Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to persons skilled in the art. It is, therefore, contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.