TWI410581B - Lamp structure - Google Patents

Abstract

The invention discloses a lamp structure including a lamp shade, a pedestal, a light emitting module, a reflection cover, a reflection frame and a plurality of support arms. The pedestal includes a flat board part, a boss part and a fixed part. The boss part protrudes in the center of the flat board part. The fixed part is disposed on the outer periphery of the flat board part and the fixed part is connected with the bottom part of the lamp shade. The light emitting module is arranged on the top face of the boss part, thereby emitting light beams. The reflection cover is disposed in the lamp shade and is used for reflecting the light beams. The reflection frame is covered on the pedestal and the reflection frame is provided with a groove arranged above the boss part, thereby exposing the light emitting module. The support arms are connected between the reflection frame and the reflection cover, thereby supporting the reflection cover above the light emitting module.

Description

Lamp structure

The present invention relates to a luminaire structure, and more particularly to a luminaire structure that increases the angle of light exiting.

Light-Emitting Diode (LED) is mainly used to convert light into light energy. The main constituent material of the light-emitting diode is a semiconductor in which a positively charged hole ratio is called a P-type semiconductor, and a negatively charged electron ratio is called an N-type semiconductor. A P-type semiconductor is connected to the N-type semiconductor to form a PN junction. When a voltage is applied across the positive and negative electrodes of the light-emitting diode, electrons are combined with the holes. When the electrons are combined with the holes, they are emitted in the form of light.

Light-emitting diodes have been widely used in various types of lamp structures in recent years due to their long life, low temperature, and high energy efficiency. Traditional light sources have gradually been replaced by light-emitting diodes.

Since the light emitted by the light-emitting diode has directivity and is flat on the flat plate, it can only be used as a positive-illuminating lamp, so that the light exiting angle and the diverging direction are less than 180 degrees, which is difficult to meet the design requirements. In order to make the application level of the light-emitting diode more extensive, the industry is also working on how to make the structure of the lamp have the function of side illumination.

The invention relates to a lamp structure for increasing the light exiting angle, so that the light exiting angle can reach 180 degrees or more than 180 degrees, which is obvious compared with the conventional light emitting diode having an exit angle of only 120 degrees. Improved to give the luminaire structure a large exit angle.

According to an aspect of the invention, a lamp structure is provided, comprising a lamp cover, a base, a light emitting module, a reflective cover, a reflector frame and a plurality of support arms. The base includes a flat portion, a ridge, and a fixing portion. The bulge protrudes from the center of the flat portion. The fixing portion is located at the periphery of the flat plate portion, and the fixing portion is connected to the bottom of the lamp cover. The light emitting module is disposed on a top surface of the ridge to emit a light. The reflector is located inside the lampshade to reflect light. The reflector is covered on the base, and the reflector has a slot located above the ridge to expose the light module. A plurality of support arms are connected between the reflector frame and the reflective cover to support the reflective cover above the light emitting module.

According to another aspect of the present invention, a lamp structure is provided, including a lamp cover, a base, a light emitting module, a reflective cover, and a plurality of support arms. The base includes a flat portion, a ridge, and a fixing portion. The bulge protrudes from the center of the flat portion. The fixing portion is located at the periphery of the flat plate portion, and the fixing portion is connected to the bottom of the lamp cover. The light emitting module is disposed on a top surface of the ridge to emit a light. The reflector is located inside the lampshade to reflect light. A plurality of support arms are connected between the flat plate portion and the reflective cover to support the reflective cover above the light emitting module.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

The illuminating device of the embodiment is provided with a ridge in the center of the base, and the illuminating module is disposed on the top surface of the ridge so that the illuminating module is higher than the flat portion of the base by a predetermined value. In addition, the reflective cover is disposed above the light emitting module to reflect the light of the forward light. Since the light-emitting module is disposed on the ridge of the base, in addition to the forward light, part of the light can be emitted from the rear side of the lamp cover by the reflection of the reflective cover, thereby increasing the light-emitting angle of the light, so that the light is emitted. The angle can be up to 180 degrees or greater than 180 degrees, and can even reach more than 250 degrees, such as 270 degrees.

The following is a detailed description of various embodiments, which are intended to be illustrative only and not to limit the scope of the invention.

First embodiment

Please refer to FIGS. 1A and 1B for an exploded perspective view and a cross-sectional view of a lamp structure according to an embodiment of the invention. The lamp structure 100 includes a lamp cover 110, a base 120, a light emitting module 130, a reflective cover 142, a reflector frame 144, and a plurality of support arms 146. The base 120 includes a flat portion 124, a raised portion 122, and a fixing portion 126. The ridge 122 protrudes from the center of the flat portion 124. The fixing portion 126 is located at the periphery of the flat plate portion 124, and the fixing portion 126 is connected to the bottom of the lamp cover 110. The light emitting module 130 is disposed on the top surface 123 of the raised portion 122 to emit a light. A reflective cover 142 is located within the globe 110 for reflecting light. The reflector 144 covers the base 120, and the center of the reflector 144 has a slot 145 located above the ridge 122 to expose the light module 130. A plurality of support arms 146 are connected between the reflector 144 and the reflective cover 142 to support the reflective cover 142 above the light emitting module 130.

In addition, the illuminating structure 100 further includes an optical lens 150 disposed on the reflector 144 and surrounding the periphery of the illuminating module 130. In one embodiment, optical lens 150 is a hollow annular body. The optical lens 150 has an inner annular surface 152 and an opening portion 154. The inner annular surface 152 surrounds the opening portion 154, and the size of the opening portion 154 gradually decreases toward the center of the flat plate portion 124. Therefore, the inner annular surface 152 is an inclined surface that is inclined inward. The partial light L2 can be directly emitted toward the inner annular surface 152 of the optical lens 150 and changed by the optical lens 150 to change the light angle. In addition, a portion of the light ray L1 may be first reflected by the reflection cover 142 toward the inner annular surface 152 of the optical lens 150, and then changed by the optical lens 150 to change the light angle.

In this embodiment, the reflective cover 142 is, for example, a hollow cone, and the lower surface thereof is a reflective surface. The reflecting surface extends outwardly from the tip end of the cone to form a tapered surface 142a to allow light to be redirected through the tapered surface 142a to change the angle of light. In addition, the tapered surface 142a may have a single slope or a composite slope composed of a plurality of gradient slopes. In this embodiment, the light exit angle and the divergence direction of the light may be adjusted by changing the slope of the tapered surface 142a to meet the design requirements. .

Additionally, reflective cover 142 and reflector 144 can be highly reflective materials. The reflective material of the highly reflective material can be as high as 90% or more, which can reduce the loss of light reflection and enhance the reflection effect. In addition, the tapered surface 142a and the reflector 144 can also be coated with a highly reflective material or a multilayer optical film, which can also reduce the loss of light reflection and enhance the reflection effect. The partial light L4 can be first reflected by the reflective cover 142 to the reflector 144, and then reflected by the reflector 144 to change the light angle.

Referring to FIG. 1B , the reflective cover 142 has a recess 143 located above the light emitting module 130 . The depressed portion 143 has, for example, a plurality of light exits 141. Part of the light ray L3 can be emitted toward the upper side of the globe 110 via the light exit 141. Therefore, the present embodiment can increase the luminous flux above the lamp cover 110 via the additional light outlet 141. In addition, the luminaire structure 100 of the embodiment further includes a diffusing glue 160 disposed in the light exits 141. The diffusing colloid 160 increases the homogenization of the light source to avoid causing regional halos or dark lines.

The light source 132 of the light-emitting module 130 is, for example, a light-emitting diode disposed on the circuit board 134, and the circuit board 134 of the light-emitting module 130 can be fixed on the top surface 123 of the raised portion 122 via the adhesive 136 to enable illumination. The module 130 is raised above the flat portion 124 of the base 120 by a predetermined value. In an embodiment, the flat portion 124, the raised portion 122, and the fixed portion 126 of the base 120 may be integrally formed from a sheet of metal. In addition, the ridge portion 122 of the base 120 is, for example, a hollow flat-top bump, and a top surface 123 is formed on the smaller-sized top portion thereof so that the light-emitting module 130 can be laid flat on the ridge portion 122. The raised portion 122 has an inclined side wall 122a connected between the top surface 123 of the raised portion 122 and the flat plate portion 124. The inclined side wall 122a may be a continuous stepped surface in addition to a smooth surface to adjust the slope. The light-emitting module 130 can be powered by an external power supply, and the electrical connection is a conventional technology, and details are not described herein.

In an embodiment, the bottom of the optical lens 150 and the support arm 146 can be fixed on the reflector 144 by a hook 148, and the bottom of the lamp cover 110 passes through the reflector 144 and is fixed to the fixing portion of the base 120. 126. In addition, the cross section of the lampshade 110 is, for example, an arch structure having unequal thicknesses, and the thickness of the lampshade 110 is gradually increased from the top to the bottom to form a light transmissive cover having a thin upper and a lower width. When the light L1 is directed to the thicker bottom, the light can be emitted not only from the side but also toward the rear side of the lamp cover 110, thereby increasing the light exit angle of the light L1. Therefore, after multiple refractions, The light angle of the light L1 can be greater than 180 degrees, or even 270 degrees, making the application structure of the lamp structure 100 more extensive.

In addition, the illuminating structure 100 further includes a plurality of fixing members 162 (for example, screws) that are respectively fixed to the base 120 through the through holes of the reflecting frame 144 to integrally combine the reflecting frame 144 and the base 120.

Second embodiment

Please refer to FIG. 2, which is a cross-sectional view showing the structure of a lamp according to an embodiment of the invention. In the above embodiment, the optical lens 150 and the support arm 146 are fixed on the reflector 144 by the hook 148. However, in the luminaire structure 101 of the embodiment, the optical lens 150 and the support arm 146 are fixed on the flat plate of the base 120. On section 124. The optical lens 150 surrounds the periphery of the light-emitting module 130 , and the support arm 146 is configured to support the reflective cover 142 above the light-emitting module 130 . For the description of the structure of the lamp cover 110, the light-emitting module 130, the reflective cover 142, and the base 120, refer to the above embodiments, and the same components are denoted by the same reference numerals and will not be described again.

Third embodiment

Please refer to FIG. 3, which is a cross-sectional view showing the structure of a lamp according to an embodiment of the invention. In the above two embodiments, the optical lens 150 and the support arm 146 are both fixed on the reflector 144 or the base 120, and the optical lens 150 surrounds the periphery of the light-emitting module 130. However, in the luminaire structure 102 of the embodiment, only The support arm 146 is disposed on the reflector 144 (or the base 120) to support the reflective cover 142 above the light-emitting module 130. The rest of the structure is as described in the first embodiment, and details are not described herein.

In the above, the present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100, 101, 102‧‧‧ luminaire structure

110‧‧‧shade

112‧‧‧ card hook

120‧‧‧Base

122‧‧‧Uplift

122a‧‧‧Sloping side wall

123‧‧‧ top surface

124‧‧‧ Flat section

126‧‧‧ fixed department

130‧‧‧Lighting Module

132‧‧‧Light source

134‧‧‧ circuit board

136‧‧‧Viscos

141‧‧‧Light exit

142‧‧‧Reflection cover

142a‧‧‧Conical surface

143‧‧‧Depression

144‧‧‧reflector

146‧‧‧Support arm

145‧‧‧ slotting

148‧‧‧ card hook

150‧‧‧ optical lens

152‧‧‧ Inner torus

154‧‧‧ openings

160‧‧‧Diffuse colloid

162‧‧‧Fixed parts

L1~L4‧‧‧Light

1A and 1B are exploded and cross-sectional views showing the structure of a lamp according to an embodiment of the invention.

2 is a cross-sectional view showing the structure of a lamp in accordance with an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing the structure of a lamp according to an embodiment of the invention.

101. . . Lamp structure

110. . . lampshade

120. . . Base

122. . . Uplift

124. . . Flat section

126. . . Fixed part

130. . . Light module

132. . . light source

134. . . Circuit board

142. . . Reflective cover

146. . . Support arm

150. . . optical lens

Claims (20)

A lamp structure, comprising: a lamp cover; a base comprising a flat plate portion, a ridge portion and a fixing portion, the bulging portion protrudes from a center of the flat plate portion, the fixing portion is located at a periphery of the flat plate portion, and the fixing portion is fixed The portion is connected to the bottom of the lamp cover; a light-emitting module is disposed on the top surface of the ridge to emit a light; a reflective cover is located in the lamp cover and located above the light-emitting module for reflecting the light a reflector frame covering the base, the reflector frame having a slot above the ridge to expose the light emitting module, and a plurality of support arms connected between the reflector frame and the reflective cover The reflector is supported above the light emitting module. The luminaire structure of claim 1, wherein the reflective cover has a tapered surface having a single slope or a composite slope. The luminaire structure of claim 1, wherein the reflective cover has a recessed portion above the illuminating module, the recess having a plurality of light exits. The luminaire structure of claim 3, further comprising a diffusing gel disposed in the light outlets. The luminaire structure of claim 1, wherein the thickness of the lamp cover is increased from the top of the lamp cover to the bottom of the lamp cover. The luminaire structure of claim 1, wherein the ridge has a slanted side wall connected to a top surface of the ridge and the slab Between the ministries. The luminaire structure of claim 6, wherein the slanted sidewall is a continuous stepped surface. The luminaire structure of claim 1, wherein the flat plate portion, the ridge portion and the fixing portion are integrally formed from a metal plate. The luminaire structure of claim 1, further comprising an optical lens disposed on the reflector and surrounding the illuminating module. The luminaire structure of claim 9, wherein the optical lens has an inner annular surface and an opening portion, the inner annular surface surrounding the opening portion, and the size of the opening portion is gradually decreased toward the center of the flat plate portion. A lamp structure, comprising: a lamp cover; a base comprising a flat plate portion, a ridge portion and a fixing portion, the bulging portion protrudes from a center of the flat plate portion, the fixing portion is located at a periphery of the flat plate portion, and the fixing portion is fixed The portion is connected to the bottom of the lamp cover; a light-emitting module is disposed on the top surface of the ridge to emit a light; a reflective cover is located in the lamp cover and located above the light-emitting module for reflecting the light And a plurality of support arms connected between the flat plate portion and the reflective cover to support the reflective cover above the light emitting module. The luminaire structure of claim 11, wherein the reflective cover has a tapered surface having a single slope or a composite slope. The luminaire structure of claim 11, wherein the reflective cover has a recessed portion above the illuminating module, the recess having a plurality of optical outlets. The luminaire structure of claim 13 further comprising a diffusing gel disposed in the light outlets. The luminaire structure of claim 11, wherein the thickness of the lamp cover is increased from the top of the lamp cover to the bottom of the lamp cover. The luminaire structure of claim 11, wherein the ridge has an inclined side wall connected between the top surface of the ridge and the flat portion. The luminaire structure of claim 16, wherein the slanted side wall has a continuous stepped surface. The luminaire structure of claim 11, wherein the flat portion, the ridge portion and the fixing portion are integrally formed from a metal plate. The luminaire structure of claim 11, further comprising an optical lens disposed on the flat portion and surrounding the illuminating module. The luminaire structure of claim 19, wherein the optical lens has an inner annular surface and an opening portion, the inner annular surface surrounding the opening portion, and the size of the opening portion is gradually decreased toward the center of the flat plate portion.