TWI382138B - Illumination device - Google Patents

Description

Lighting device

The invention relates to a lighting device, in particular to a lighting device which is formed by splicing a plurality of lighting modules.

Lighting devices, such as incandescent lamps, fluorescent lamps, halogen lamps, etc., usually have a certain range of illumination, but in some cases, lighting devices with a large illumination range are often required. For details, see "Solid-State Light-ing: Toward Superior Illumination" by Michael S. Shur et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 1005).

In general, in order to obtain a larger illumination range, it can be achieved by providing a plurality of illumination devices, each of which can be individually illuminated. However, when the method is previously used to obtain a large illumination range, the plurality of illumination devices need to be separately provided, making the installation difficult and inconvenient to use.

In view of this, it is necessary to provide a lighting device which is spliced by a plurality of light-emitting modules.

Hereinafter, a lighting device formed by splicing two light emitting modules will be described by using a specific embodiment.

The illuminating device includes a first illuminating module and a second illuminating module. The first illuminating module and the second illuminating module respectively comprise a heat dissipating housing and at least one light source disposed in the heat dissipating housing. The heat dissipation housing is thermally connected to the at least one light source to dissipate heat thereof, and the first light emitting module The second illuminating module has at least one first splicing portion disposed on the heat dissipating casing, and the second illuminating module has at least one second splicing portion matched with the first splicing portion and disposed on the heat dissipating casing, the first splicing portion The first splicing portion and the second splicing portion are spliced together between the illuminating module and the second illuminating module.

The illuminating device includes a first illuminating module and a second illuminating module, and the first illuminating module and the second illuminating module respectively have a heat dissipating housing and are disposed in the heat dissipating housing. At least one light source, wherein the first splicing portion is disposed on the first illuminating module, and the second splicing portion is matched with the first splicing portion on the second illuminating module, and the splicing portion is spliced by the first splicing portion The second splicing portion to constitute the illuminating device allows the illuminating device to obtain a larger illumination range as a whole.

The embodiments of the present invention will be further described in detail below with reference to the drawings.

Referring to FIG. 1 and FIG. 2 , a lighting device 10 according to a first embodiment of the present invention includes a first lighting module 11 and a second lighting module 12 .

Referring to FIG. 3 together, the first light-emitting module 11 is a strip-shaped structure, and includes a heat-dissipating housing 111 and at least one light source 113 disposed in the heat-dissipating housing 111. The at least one light source 113 can be At least one light-emitting diode (LED), the light-emitting diode 113 can be attached to a circuit board 112 by using a thermal conductive adhesive 1130, such as silver glue, and the circuit board 112 is further fixed on the circuit board 112. The heat dissipation housing 111 is configured to form a thermal connection between the at least one light source 113 and the heat dissipation housing 111, so that heat generated by the at least one light source 113 can be transmitted to the heat dissipation housing 111 and emitted to the outside air. . It can be understood that the light emitting diode 113 It can also be fixed on the circuit board 112 by solder ball soldering or eutectic sintering. The heat dissipation housing 111 can be made of a metal material having good thermal conductivity such as aluminum, copper or stainless steel, and the heat dissipation housing 111 further has a plurality of heat dissipation fins 1110. The heat dissipation fins 1110 are separated from the heat dissipation housing 111 by at least one. One side of the light source 113 is formed to extend outwardly, which can increase the contact area of the heat dissipation housing 111 with the outside air, thereby preferably dissipating heat from the at least one light source 113.

The first light-emitting module 11 further includes a lamp cover 115 opposite to the heat-dissipating housing 111 and forming a receiving space 110 for receiving the at least one light source 113. The light cover 115 includes a light incident surface 1150 and a light emitting surface 1152 opposite to the light incident surface 1150. The light emitted by the at least one light source 113 is incident on the light shield 115 through the light incident surface 1150 of the light shield 115, and After the lamp cover 115 is transmitted, it is emitted from the light exit surface 1152 of the lamp cover 115. It can be understood that the lampshade 115 can be a transparent medium, which can be selected from polymethylmethacrylate (PMMA), polycarbonate (Poly Carbonate, PC), silicone, epoxy, A transparent material having a higher hardness such as polyacrylate is used to protect the at least one light source 113. Of course, the lamp cover 115 may also be provided as a lens having a light collecting effect or a light diverging effect, to at least The light emitted by a light source 113 acts as an optical or optical divergence, which is more suitable for practical requirements. In addition, the light-emitting surface 1152 of the lamp cover 115 can be a smooth surface. Preferably, the light-emitting surface 1152 is disposed as a rough surface, so that at least one light emitted from the light source 113 is transmitted through the light-shielding 115, and the light-emitting cover is The light-emitting surface 1152 of 115 is uniformly emitted, so that the light emitted by the first light-emitting module 11 is softened to reduce light. The line stimulates the human eye.

The second light emitting module 12 is disposed opposite to the first light emitting module 11 and is similar in structure to the first light emitting module 11 . The second light-emitting module 12 includes a heat-dissipating housing 121, at least one light source 123 disposed in the heat-dissipating housing 121 (the at least one light source 123 can also be disposed as a plurality of light-emitting diodes), and a light cover 125. The heat dissipation housing 121 is oppositely coupled to form a receiving space 120 for receiving the at least one light source 123. The heat dissipation housing 121 has a plurality of heat dissipation fins 1210. The at least one light source 123 is attached to the circuit board 122 by a thermal adhesive 1230, such as silver glue, and the circuit board 122 is further fixed on the heat dissipation housing 121, so that the at least one light source 123 and the heat dissipation shell Body 121 forms a thermal connection.

The first illuminating module 11 has a first splicing portion 131. The second illuminating module 12 has a second splicing portion 132. The first splicing portion 131 cooperates with the second splicing portion 132. The first splicing portion 131 is formed by extending outwardly from the heat dissipation housing 111, and forms a linear protrusion away from one end of the heat dissipation housing 111. The second splicing portion 132 extends outward from the heat dissipation housing 121, and A groove is formed away from one end of the heat dissipation housing 121. The protrusion of the first splicing portion 131 is received in the recess of the second splicing portion 132, so that the first illuminating module 11 and the second illuminating module 12 are spliced. Specifically, the linear protrusion is a cylindrical protrusion, and the cross section of the groove is correspondingly set to a superior arc. It can be understood by those skilled in the art that the second splicing portion 132 can also extend from one end of the at least one light source 123 by the heat dissipation housing 121, as long as the protrusion of the heat dissipation housing 111 can be received in the concave portion of the second splicing portion 132. It is sufficient in the tank and is not limited to the specific embodiment.

In order to increase the tightness of the connection between the first lighting module 11 and the second lighting module 12 The first splicing portion 131 and the second splicing portion 132 of the splicing portion may be further set to be two, three or more than one. As shown in FIG. 3, in the embodiment, the first lighting module 11 further has a second splicing portion 132. Correspondingly, the second illuminating module 12 further has a first splicing portion 131. The first splicing portion 131 of the second illuminating module 12 and the second splicing portion 132 of the first illuminating module 11 are respectively connected to the first splicing portion 131 and the second illuminating module 12 of the first illuminating module 11 The second splicing portion 132 is the same, and the second splicing portion 132 of the first illuminating module 11 is spliced with the first splicing portion 131 of the second illuminating module 12, so that the first illuminating module 11 and the second illuminating unit The modules 12 can be more closely spliced together.

The first splicing portion 131 and the second splicing portion 132 are connected to the splicing portion illuminating device 10 to connect the first illuminating module 11 and the second illuminating module 12, as shown in FIG. The first splicing portion 131 extends from the heat dissipation housing 111 of the first illuminating module 11 , and the second splicing portion 132 extends from the heat dissipation housing 121 of the second illuminating module 12 . The first splicing portion 131 is received in the second splicing portion 131 . A pivotal connection is formed in the splicing portion 132, that is, the first illuminating module 11 can rotate the center of the groove of the second splicing portion 132 around the second illuminating module 12, or the second illuminating module The first light-emitting module 11 and the second light-emitting module 12 respectively included in the assembled illumination device 10 have a certain value. The degree of freedom of movement makes it easy to adjust the angle of illumination of the illumination device 10 to suit the actual requirements.

Referring to FIG. 5 , a lighting device 30 according to a second embodiment of the present invention is different from the lighting device 10 provided by the first embodiment of the present invention in that: the first lighting module 31 and the second lighting module are different. 32 structure is completely set Similarly, the first splicing portion 331 and the second splicing portion 332 are respectively formed by the heat dissipation housing 311 of the first illuminating module 31 and the heat dissipation housing 321 of the second illuminating module 32, and the first splicing The portion 331 and the second splicing portion 332 respectively open a recess away from one end of the heat dissipation housing 311 and the heat dissipation housing 321; further, the splicing portion illumination device 30 further includes a connecting shaft 333, which includes the connected and juxtaposed Two columnar protrusions are disposed, and the two columnar protrusions of the connecting shaft 333 pass through the groove of the first joint portion 331 and the groove of the second joint portion 332, so that the first light emitting module 31 and the The second light emitting modules 32 are spliced together. Specifically, the columnar protrusion is a cylindrical protrusion, and the groove has a cross section of a superior arc.

In the first and second embodiments of the present invention, the illumination devices 10 and 30 respectively include a first illumination module 11 and 31, and second illumination modules 12 and 32, and the first illumination modules 11 and 31 respectively The heat dissipation housings 111 and 321 are respectively disposed on the first light-emitting modules 11 and 31, and the first splicing portions 131 and 331 are respectively disposed on the first light-emitting modules 11 and 31. And the second splicing portions 132 and 332 are respectively disposed on the second illuminating modules 12 and 32, and the second splicing portions 132 and 332 are connected by the first splicing portions 131 and 331 to respectively constitute the illuminating devices 10 and 30. The illumination device 10, 30 can be made to obtain a larger illumination range as a whole.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10, 30‧‧‧ Lighting devices

11, 31‧‧‧ first lighting module

12, 32‧‧‧second lighting module

110, 120‧‧‧ accommodating space

111, 121, 311, 321‧‧ ‧ heat sink housing

112, 122‧‧‧ circuit board

113, 123‧‧‧ light source

115, 125‧‧‧ lampshade

131, 331‧‧‧ first joint

132, 332‧‧‧ second joint

333‧‧‧Connected shaft

1110, 1210‧‧‧ Heat sink fins

1130, 1230‧‧‧ Thermal adhesive

1150‧‧‧Into the glossy surface

1152‧‧‧Glossy surface

1 is an exploded perspective view of a lighting device according to a first embodiment of the present invention.

2 is a schematic view showing the assembly of the lighting device shown in FIG. 1.

3 is a schematic cross-sectional view of the lighting device of FIG. 2 taken along line III-III.

4 is a schematic cross-sectional view of the lighting device according to the first embodiment of the present invention along the line III-III after being modified.

FIG. 5 is a schematic cross-sectional view of a lighting device according to a second embodiment of the present invention.

10‧‧‧Lighting device

11‧‧‧First lighting module

12‧‧‧Second lighting module

110, 120‧‧‧ accommodating space

111, 121‧‧‧ Thermal housing

112, 122‧‧‧ circuit board

113, 123‧‧‧ light source

115, 125‧‧‧ lampshade

131‧‧‧First joint

132‧‧‧Second joint

1110, 1210‧‧‧ Heat sink fins

1130, 1230‧‧‧ Thermal adhesive

1150‧‧‧Into the glossy surface

1152‧‧‧Glossy surface

Claims (10)

The illuminating device includes a first illuminating module and a second illuminating module. The first illuminating module and the second illuminating module respectively comprise a heat dissipating housing and at least one light source disposed in the heat dissipating housing. The heat dissipation housing is thermally coupled to the at least one light source for dissipating heat. The first light emitting module has a first splicing portion disposed on the heat dissipation housing, and the second illuminating module has a first splicing The first splicing portion and the second splicing portion are pivotally connected to each other by the first splicing portion and the second splicing portion. Both sides of the light-emitting module and the heat-dissipating housing of the second light-emitting module facing away from the light-emitting direction are pivotally connected to the second joint portion by the first joint portion. The illuminating device of claim 1, wherein the first splicing portion is formed by an outwardly extending heat dissipation housing of the first illuminating module, and a linear protrusion is formed away from one end of the heat dissipating housing. The second splicing portion is formed by extending from the heat dissipation housing of the second illuminating module, and a recess is formed away from one end of the heat dissipating housing, and the protrusion of the first splicing portion is received in the recess of the second splicing portion So that the first light emitting module is pivotally connected to the second joint portion. The illuminating device of claim 2, wherein the linear protrusion is a cylindrical protrusion, and the groove has a cross section of a superior arc. The illuminating device of claim 1, wherein the illuminating device further comprises at least one connecting shaft, the connecting shaft comprises two columnar protrusions connected and juxtaposed, the first splicing portion and the second The splicing portions are respectively formed by the heat dissipation shells of the first illuminating module and the second illuminating module, and the first splicing portion and the second splicing portion are respectively away from the heat dissipating housing of the first illuminating module and the second a recess is formed at one end of the heat dissipation housing of the light emitting module, The two columnar protrusions of the connecting shaft are respectively received in the grooves of the first joint portion and the second joint portion, so that the first and second light emitting modules are pivotally connected. The illuminating device of claim 4, wherein the columnar protrusion is a cylindrical protrusion, and the groove has a cross section of a superior arc. The illuminating device of any one of the first to fifth embodiments, wherein the heat dissipating casing of the first illuminating module and the heat dissipating casing of the second illuminating module respectively comprise a plurality of fins, the first The heat dissipating fin of the illuminating module is formed by extending a heat dissipating shell of the first illuminating module away from a side of the at least one light source of the first illuminating module, and the heat dissipating fin of the second illuminating module is configured by the first The heat dissipation housing of the two light emitting modules is formed to extend outward from a side of the at least one light source of the second light emitting module. The illuminating device of claim 1, wherein the at least one light source is at least one light emitting diode. The illuminating device of claim 1, wherein the illuminating device further comprises a circuit board disposed between the illuminating diode and the heat dissipating housing, wherein the illuminating diode is disposed on the circuit board . The illuminating device of claim 1, wherein the first and second illuminating modules further comprise a lamp cover, wherein the lamp cover cooperates with the heat dissipating casing to form a receiving body for accommodating the at least one light source The light cover includes a light incident surface and a light emitting surface opposite to the light incident surface, and the light emitted by the at least one light source is incident on the light cover through the light incident surface of the light cover, and is transmitted through the light cover through the light cover The light exits. The illuminating device of claim 9, wherein the lamp cover is a transparent medium, and the light emitting surface is a rough surface.