TWM457847U - Lighting device having a widely light emitting angle - Google Patents

Abstract

A lighting device having a wide angle includes a base having a housing tank, a multi-layer heat sink structure having a first heat sink layer and a second heat sink layer and the second heat sink layer is located on the first heat sink layer; a first lighting module having a first substrate surrounding the second heat sink layer and located on the first heat sink layer and at least one lighting element is located on the first substrate; and a second lighting module having a second substrate located on the second heat sink layer, and at least one second lighting element is disposed on the second substrate; and a first reflecting element is circumambient-disposed on lateral walls of the second heat sink layer for reflecting the light produced by the first lighting elements to a lateral direction.

Description

Wide angle light fixture

The present invention relates to a luminaire, and more particularly to a luminaire having a wide angle.

The traditional light bulb uses tungsten wire as the light source, and its structure is simple, and it is quite convenient to install and replace. The structure of the tungsten filament bulb is usually fixed to a joint at the end of the spherical bulb, and the adapter has a thread for screwing into the general bulb holder. When the power is turned on, the tungsten wire inside the lampshade will glow and illuminate, thereby achieving the purpose of illumination.

In recent years, light-emitting diodes (LEDs) have been replaced by conventional light sources because of their small size, low driving voltage, fast reaction rate, shock resistance, long life and environmental protection. With the continuous development and advancement of technology, the luminous efficiency of the LED has not only surpassed the tungsten bulb (efficiency is about 10~201m/W), but it has also been in the fluorescent tube (efficiency is about 60~801m/W). Above. In addition, the current demand for electronic components is becoming lighter and thinner, which makes the bulb-type LEDs gradually replace the tungsten bulbs and become a large-scale and widely used lighting device.

In general, the illumination angle of the existing bulb-type light-emitting diode is about 180 degrees. In other words, the illumination angle of the existing bulb-type light-emitting diode cannot take into account other ranges exceeding 180 degrees, thus causing the existing bulb type. The problem that the light-emitting diode has a limitation in the range of illumination angles.

The purpose of the novel is to provide a wide-angle light-emitting luminaire with a large illumination range.

In order to achieve the above object, a wide-angle light-emitting luminaire includes: a susceptor having a receiving groove; and a multi-layer heat dissipating structure disposed in the accommodating groove, the multi-layer heat dissipating structure having a first heat dissipating layer and a second heat dissipating layer, The first heat dissipation layer is disposed on the first heat dissipation layer; the first light emitting module has a first substrate, the first substrate surrounds the second heat dissipation layer and is located on the first heat dissipation layer, and has at least one first light emitting unit On the first substrate; and the second light emitting module, the second substrate is located on the second heat dissipation layer, and the at least one second light emitting unit is disposed on the second substrate; and the first reflective member is disposed on the second substrate The sidewall of the second heat dissipation layer is configured to reflect the light emitted by the first light emitting unit to the lateral direction.

In an embodiment of the present invention, the luminaire further includes a third heat dissipation layer disposed on the second heat dissipation layer and the second substrate surrounding the third heat dissipation layer.

In an embodiment of the present invention, the luminaire further includes a third illuminating module located above the third heat dissipating layer and emitting light upward.

In an embodiment of the present invention, the luminaire further includes a second reflector disposed on a sidewall of the third heat dissipation layer for reflecting the light emitted by the second illuminating unit to the lateral direction.

In an embodiment of the present invention, the outer surface of the second reflecting member is an outer convex curved surface or a concave curved surface.

In an embodiment of the present invention, the first heat dissipation layer, the second heat dissipation layer, and the third heat dissipation layer are disposed concentrically.

In an embodiment of the present invention, the outer surface of the first reflecting member is an outer convex curved surface or a concave curved surface.

In an embodiment of the present invention, the first heat dissipation layer and the second heat dissipation layer are disposed concentrically.

In an embodiment of the present invention, the light-transmitting lamp cover is further covered on the base.

In an embodiment of the present invention, the first light emitting unit and the second light emitting unit are both light emitting diodes.

The light source emitted by the first light-emitting module of the wide-angle light-emitting lamp and reflected by the first reflecting member, and the light source emitted by the second light-emitting module, the light-emitting angle formed by the two light sources may be greater than 180 degrees or even greater than 320 degrees. In this way, the problem that the illumination angle of the bulb type lamp is only 180 degrees in the past can be effectively solved, and the lighting effect is not good.

The spirit and scope of the present invention will be apparent from the following description of the preferred embodiments of the invention. It does not depart from the spirit and scope of the present invention.

Please refer to FIG. 1 and FIG. 2 simultaneously. FIG. 1 is a perspective view of a wide-angle light-emitting luminaire 100 according to an embodiment of the present invention. Fig. 2 is an exploded view of the wide-angle light-emitting luminaire 100 of Fig. 1. As shown in FIG. 1 and FIG. 2 , a wide-angle light-emitting luminaire 100 includes a pedestal 110 , a multi-layer heat dissipation structure 120 , a first illuminating module 130 , a second illuminating module 140 , and a first reflecting member 150 . When the first light emitting module 130, the second light emitting module 140, and the susceptor 110 are connected to each other and the susceptor 110 is connected to an external power source to be powered, the first illuminating module 130 and the second illuminating module 140 The light can be illuminated by the power received from the susceptor 110.

The susceptor 110 forms a receiving groove 112. In this embodiment, the receiving groove 112 is coaxial with the base 110, but is not limited thereto. In addition, the top edge of the base 110 extends outward to form an annular portion 114 for the light-transmitting lamp cover 160 to be connected.

The multi-layer heat dissipation structure 120 is located in the accommodating groove 112. The multi-layer heat dissipation structure 120 has a first heat dissipation layer 122 and a second heat dissipation layer 124 , and the second heat dissipation layer 124 is located on the first heat dissipation layer 122 . In this embodiment, the outer diameter of the second heat dissipation layer 124 is smaller than the outer diameter of the first heat dissipation layer 122, and the first heat dissipation layer 122 and the second heat dissipation layer 124 are disposed coaxially, in other words, the first heat dissipation layer 122 and The axis of the second heat dissipation layer 124 is located on the same axis L ₁ , but is not limited thereto. In addition, the first heat dissipation layer 122 and the second heat dissipation layer 124 can form a heat dissipation cavity 126 to save heat dissipation structure material, and increase the heat dissipation surface area and heat convection space of the heat dissipation structure. In this embodiment, the material of the multi-layer heat dissipation structure 120 is an insulating or non-insulating high thermal conductivity material, such as metal or other high thermal conductivity material, but is not limited thereto.

The first light emitting module 130 has a first substrate 132 surrounding the sidewall of the second heat dissipation layer 124 and located above the first heat dissipation layer 122 , and has at least one first light emitting unit 134 located on the first substrate 132 . In this embodiment, the first substrate 132 is an annular structure for inserting into the second heat dissipation layer 124 and connected to the top of the first heat dissipation layer 122. In addition, the first light emitting unit 134 can be disposed on the first substrate 132. In this embodiment, the first light emitting units 134 are connected to the first substrate 132 and electrically connected to each other. In other embodiments, the first light emitting unit can be electrically disposed on the first substrate by directly bonding the bare wafer to the board (Chip On Board, COB).

The second light emitting module 140 has a second substrate 142 on top of the second heat dissipation layer 124 and has at least one second light emitting unit 144 disposed on the second substrate 142. In the embodiment, the second light emitting module 140 is connected to the second substrate 142 and electrically connected to each other. In other embodiments, the second light emitting unit can be electrically disposed on the second substrate by directly bonding the bare wafer to the board (Chip On Board, COB). In this embodiment, the first light emitting unit 134 and the second light emitting unit 144 are light emitting diodes, but are not limited thereto. In this embodiment, the number of the first light emitting units 134 is greater than that of the second light emitting unit 144, but is not limited thereto.

The first reflective member 150 is disposed on the sidewall of the second heat dissipation layer 124 and disposed between the first light emitting module 130 and the second light emitting module 140 for reflecting the light emitted by the first light emitting unit 134 to the side. to. In this embodiment, the outer surface of the first reflecting member 150 is an outer convex curved surface. In other embodiments, the outer surface of the first reflecting member may also be a concave curved surface (e.g., the first reflecting member 150' in Fig. 3). In addition, since the arc surface design of the outer surface of the first reflecting member 150 not only makes the light source reflected by the first reflecting member 150 have multiple reflection paths, the light uniformity of the light source reflected by the first reflecting member 150 can be more increased. In the present embodiment, the first reflecting member 150 is made of a polyethylene terephthalate (PET) by mirror-finishing the outer surface thereof, but is not limited thereto.

Please refer to FIG. 3, which is a side view of the wide-angle light-emitting luminaire of FIG. As shown in FIG. 3, due to the curved surface design of the outer surface of the first reflecting member 150, the light source emitted by the first light emitting unit 134 can be laterally emitted after being reflected by the first reflecting member 150, and the laterally emitted light source is diverged. Can be increased The range of illumination angles formed by the first illumination module 130 and the second illumination module 140. Therefore, the illumination angle θ of the entire luminaire 100 can form a range of illumination angles greater than 180 degrees. In addition, further adjusting the structure of the first reflecting member 150 and the position of the first lighting module 130 and the second lighting module 140 may further increase the overall illumination angle range of the luminaire 100 to greater than 320 degrees.

In addition, in the embodiment, the wide-angle light-emitting lamp 100 further includes a light-transmitting lamp cover 160 covering the base 110. For example, the light-transmitting lamp cover 160 covers the first light-emitting module 130 and the second light-emitting module 140 and is connected to the annular portion 114 of the base 110. The first light-emitting module 130 and the second light-emitting module 140 of the present embodiment are different in height, and the light-transmitting lamp cover 160 must be designed to cover the first light-emitting module 130 and the second light-emitting module 140 at the same time. In addition, the light-transmitting lamp cover 160 can protect the first light-emitting module 130 and the second light-emitting module 140 on the one hand, and the light-transmitting lamp cover 160 can be further designed by a special surface structure to emit light from the light-transmitting lamp cover 160. More even. For example, various lines are designed on the light-transmitting cover 160. In addition, the light-transmitting lamp cover 160 also has the effect of increasing the visual beauty. In addition to the design of the pattern, the color of the light-transmitting lamp cover 160 can also be replaced according to the needs of the user.

In the present embodiment, the first light emitting module 130, the second light emitting module 140, a first reflection member 150, the heat dissipation structure 120 and the multilayer base 110 are positioned on the same axis of L _1, but that is not limited thereto.

Please refer to FIG. 4 and FIG. 5, which is a perspective view of a wide-angle light-emitting luminaire 100' according to another embodiment of the present invention. Fig. 5 is an exploded view of the wide-angle light-emitting luminaire 100' of Fig. 4. Such as the first As shown in Fig. 4 and Fig. 5, in the present embodiment, the second light emitting module 140' is formed by the second light emitting unit 144' being looped on the outer edge of the second substrate 142'. In this embodiment, the second light emitting unit 144' is electrically disposed on the second substrate 142' by directly bonding the bare wafer to the board (Chip On Board, COB). limit.

Further, the wide-angle light-emitting lamp 100' of the present embodiment further includes a third heat dissipation layer 125, a third light-emitting module 180, and a second reflection member 170 in addition to the elements described in FIGS. 1 and 2.

The third heat dissipation layer 125 is disposed at a middle position of the second heat dissipation layer 124, and the second substrate 142' is located at the second heat dissipation layer 124 and surrounds the third heat dissipation layer 125. Therefore, the third heat dissipation layer 125 is disposed by the second light emitting unit 144'. surround.

The third light emitting module 180 is located above the third heat dissipation layer 125 and emits light upward. The third light emitting module 180 is composed of a third light emitting unit 184 disposed on the third substrate 182. In this embodiment, the third light-emitting unit 184 is electrically disposed on the third substrate 182 by directly bonding the bare wafer to the board (Chip On Board, COB), but is not limited thereto.

In addition, the second reflective member 170 is disposed on the sidewall of the third heat dissipation layer 125 and surrounded by the second light emitting unit 144' for reflecting the light emitted by the second light emitting unit 144' to the lateral direction. In the present embodiment, the outer surfaces of the first reflecting member 150' and the second reflecting member 170 are concave curved surfaces. In other embodiments, the outer surfaces of the first reflecting member 150' and the second reflecting member 170 may also be outer convex curved surfaces (for example, the first reflecting member 150 in FIG. 1). Due to the curved surface design of the outer surface of the second reflecting member 170, the light emitted by the second light emitting unit 144' is reflected by the second reflecting member 170 and can be emitted laterally. Therefore, the light The illumination angle of the 100' overall is the light source emitted by the first illumination unit 134, the second illumination unit 144' and the third illumination unit 184, and the light source reflected by the first reflection member 150' and the second reflection member 170 reflected light sources are formed together.

Compared with the luminaire 100 described in FIG. 1 , the luminaire 100 ′ illustrated in FIG. 4 has a third illuminating module 180 and a second reflecting member 170 , so that the illuminating device 100 ′ having a wide angle illuminating has Higher luminous brightness. In other embodiments, the number of the light-emitting modules constituting the lamp may be four or more, and the number of the reflectors may be three or more.

In addition, in this embodiment, the first lighting module 130, the second lighting module 140', the third lighting module 180, the first reflecting member 150', the second reflecting member 170, the multi-layer heat dissipation structure 120', and The pedestals 110 are all located on the same axis L ₁ , but are not limited thereto. In addition, the first heat dissipation layer 122, the second heat dissipation layer 124, and the third heat dissipation layer 125 of the multilayer heat dissipation structure 120' are disposed concentrically, but are not limited thereto.

It can be seen from the above-mentioned embodiments of the present invention that the application of the present invention has the following advantages:

(1) The light source emitted by the first light-emitting module of the wide-angle light-emitting lamp and reflected by the first reflecting member, and the light source emitted by the second light-emitting module, the light-emitting angle formed by the two light sources may be greater than 180 degrees Even greater than 320 degrees. In this way, the problem that the illumination angle of the bulb type lamp is only 180 degrees in the past can be effectively solved, and the lighting effect is not good.

(2) The light source emitted by the first light-emitting module of the novel wide-angle light-emitting luminaire and reflected by the first reflecting member is the first reflecting member The structural design of the reflective surface has multiple reflection paths, so that the light source reflected by the first reflection member can have better light uniformity after being mixed.

100, 100’‧‧‧ lamps

110‧‧‧Base

112‧‧‧ accommodating slots

114‧‧‧Round Department

120, 120'‧‧‧Multilayer heat dissipation structure

122‧‧‧First heat sink

124‧‧‧second heat sink

125‧‧‧ Third heat sink

142, 142'‧‧‧ second substrate

144, 144’‧‧‧second lighting unit

150, 150'‧‧‧ first reflector

160‧‧‧Lighting lampshade

170‧‧‧second reflector

180‧‧‧3rd lighting module

182‧‧‧ third substrate

184‧‧‧3rd lighting unit

126‧‧‧heat cavity

130‧‧‧First lighting module

132‧‧‧First substrate

134‧‧‧first lighting unit

140, 140'‧‧‧second lighting module

L ₁ ‧‧‧ axis

Θ‧‧‧ angle

The above and other objects, features, advantages and embodiments of the present invention will be more apparent and understood. The description of the drawings is as follows: FIG. 1 is a perspective view of a wide-angle light-emitting lamp according to an embodiment of the present invention. Stereo picture.

Figure 2 is an exploded view of the wide-angle light-emitting luminaire of Figure 1.

Figure 3 is a side view of the wide-angle light-emitting luminaire of Figure 2.

4 is a perspective view of a wide-angle light-emitting luminaire according to another embodiment of the present invention.

Figure 5 is an exploded view of the wide-angle light-emitting luminaire of Figure 4.

100‧‧‧Lights

110‧‧‧Base

114‧‧‧Round Department

130‧‧‧First lighting module

132‧‧‧First substrate

134‧‧‧first lighting unit

140‧‧‧Second lighting module

142‧‧‧second substrate

144‧‧‧second lighting unit

150‧‧‧First reflector

160‧‧‧Lighting lampshade

L ₁ ‧‧‧ axis

Claims (10)

A wide-angle light-emitting luminaire includes: a pedestal having a receiving groove; a multi-layer heat dissipating structure located in the accommodating groove, the multi-layer heat dissipating structure having a first heat dissipating layer and a second heat dissipating layer The first heat dissipation layer is disposed on the first heat dissipation layer; the first light emitting module has a first substrate, the first substrate surrounds the second heat dissipation layer and is located on the first heat dissipation layer, and has at least one The first light emitting unit is disposed on the first substrate; and the second light emitting module has a second substrate disposed on the second heat dissipation layer, and the at least one second light emitting unit is disposed on the second substrate; The first reflective member is disposed on the sidewall of the second heat dissipation layer for reflecting the light emitted by the first light emitting units to the lateral direction. The luminaire of claim 1, further comprising a third heat dissipation layer disposed on the second heat dissipation layer, the second substrate surrounding the third heat dissipation layer. The luminaire of claim 2, further comprising a third illuminating module, wherein the third illuminating module is located above the third heat dissipating layer and emits light upward. The luminaire as described in item 2 of the patent application also includes a The two reflectors are disposed on the sidewall of the third heat dissipation layer for reflecting the light emitted by the second light emitting unit to the lateral direction. The luminaire of claim 4, wherein the outer surface of the second reflecting member is an outer convex curved surface or a concave curved surface. The luminaire of claim 2, wherein the first heat dissipation layer, the second heat dissipation layer and the third heat dissipation layer are disposed concentrically. The luminaire of claim 1, wherein the outer surface of the first reflecting member is an outer convex curved surface or a concave curved surface. The luminaire of claim 1, wherein the first heat dissipation layer and the second heat dissipation layer are disposed concentrically. The luminaire of claim 1, further comprising a transparent lamp cover covering the pedestal. The luminaire of any one of the preceding claims, wherein the first illuminating unit and the second illuminating units are both light emitting diodes.