TW202022279A - Flat lamp device capable of easily performing maintenance or replacement of the light bar - Google Patents

Abstract

The present invention provides a flat lamp device, which includes a back plate, a reflective plate, a light guide plate, a light penetration plate, and four side frames stacked together. Each side frame includes an inner frame and an outer frame. The inner frame is locked to the outer frame through at least one locking component so as to embed the sides of the back plate, the reflective plate, the light guide plate, and the light penetration plate into the side frames. Furthermore, the inner side of the inner frame is provided with a groove, and a light bar having a plurality of light-emitting diodes is disposed in the groove and its light-emitting surface faces one side of the light guide plate. When the light bar of the lamp device is damaged, the user may loosen the locking component on the side frames, remove the inner frame from the outer frame, take out the damaged light bar in the inner frame, install the repaired light bar or a new light bar back into the inner frame, and lock the inner frame on the outer frame again, so as to complete the maintenance or replacement of the light bar.

Description

Flat light fixture

The present invention relates to a lamp, especially a flat-plate type lighting lamp.

Lighting lamps are the most widely used living appliances in daily life. Most general lighting fixtures use fluorescent tubes as their source of light. Fluorescent lamps usually add trace amounts of argon and mercury vapor. Mercury is a toxic heavy metal substance, which not only causes pollution to the environment, but if the fluorescent tube is accidentally broken and inhaled by people, people will be harmed. Therefore, for environmental protection and energy saving considerations, more and more lighting fixtures use light emitting diode (LED) strips instead of fluorescent tubes as the main light source. The power consumption of LED lighting fixtures is much smaller than that of traditional fluorescent lamps, making it the best choice for the future lighting market.

At present, most LED lighting fixtures adopt a closed design. The LED light bar and power supply components inside the LED lighting fixtures are easily damaged due to poor heat dissipation. However, the closed design of the LED lighting fixtures is not easy to disassemble, resulting in replacement or maintenance of the LED light bar and power supply components Difficulty. Furthermore, in the past, the LED light bar is usually directly attached to the lamp holder of a heat-dissipating lamp with a special adhesive, and it takes a lot of effort to remove the damaged LED light bar from the lamp holder. Therefore, if the LED light bar or the power supply element is damaged in the LED lighting fixture, users usually have to choose to discard the LED lighting fixture and purchase a brand new LED lighting fixture. Here, discarding the entire LED lighting fixture only due to damage to some electronic components will not only cause a waste of resources, but also increase the cost of users' lighting needs.

An object of the present invention is to provide a flat panel lamp, which includes a back plate, a reflector, a light guide plate, a light-transmitting plate and four side frames that are stacked, each side frame includes an inner frame and an outer frame, The inner frame is locked on the outer frame through a locking component, so that the sides of the back plate, reflector, light guide plate, and light transmissive plate are embedded in the frame. In addition, a groove is formed on the inner side of the inner frame. Can contain a light bar; when the light bar in the lamp is damaged, loosen the locking component on the frame, remove the inner frame from the outer frame, take out the damaged light bar from the inner frame, and repair the light bar Or the new light bar is installed back to the inner frame again, and the inner frame is re-locked on the outer frame to complete the overhaul or replacement of the light bar. Then, the flat panel light fixture of the present invention can not only be easily assembled and lighted The replacement of the strip, and each component in the lamp can be repeatedly used, thereby avoiding the waste of resources and effectively reducing the cost.

In order to achieve the above objective, the present invention provides a flat panel lamp, including: a back plate; a reflector plate; a light guide plate; a light transmission plate, the back plate, the reflector plate, the light guide plate and the light transmission plate are stacked together in sequence; and A plurality of frames, each frame includes an inner frame and an outer frame, the inner frame includes a fixing part and a first plate body part arranged on the side of the fixing part, and the outer frame includes a carrying part and one arranged on the carrying part side On the second board body part corresponding to the first board body part, the fixing part is arranged on the carrying part and locked on the carrying part through at least one locking component. The frame is arranged on the back plate, the reflector, the light guide plate and Around the light-transmitting plate, and each side of the back plate, reflector, light guide plate, and light-transmitting plate are respectively embedded and fixed between the first plate body and the second plate; wherein, one of the fixed parts of the inner frame A groove is formed on the side, a light bar with a plurality of light-emitting diodes is arranged in the groove of the fixing part of at least one inner frame, and the light-emitting surface of the light bar arranged in the groove faces a side of the light guide plate side.

In an embodiment of the present invention, the light-transmitting plate is a diffuser plate or a light homogenizing plate.

In an embodiment of the present invention, an elastic layer is provided between the back plate and the reflective plate.

In an embodiment of the present invention, the elastic layer is a foam.

In an embodiment of the present invention, the fixing part of the inner frame is provided with at least one hole, the locking assembly includes a threaded part and a threaded post, the threaded post is threaded and fixed on the bearing part of the outer frame, and the threaded part and the threaded post are locked in In the hole.

In an embodiment of the present invention, a heat dissipation fin is provided on a surface of the fixing portion of the inner frame.

In an embodiment of the present invention, the bearing portion of the outer frame is an L-shaped member, and the bearing portion covers the bottom surface and the outer surface of the fixing portion.

In an embodiment of the present invention, the light reflecting plate, the light guide plate and the light transmitting plate are glued together.

In an embodiment of the present invention, the reflective plate, the light guide plate and the light-transmitting plate are combined with each other through a tearable adhesive or a snap button.

In an embodiment of the present invention, the light bar is disposed in the groove of the fixed portion of the inner frame through a tearable glue or a snap button.

Please refer to Figure 1, Figure 2, Figure 3 and Figure 4, which are respectively an exploded perspective view of the structure of an embodiment of the flat panel lamp of the present invention, a top view of the structure of an embodiment of the flat panel lamp of the present invention, and an embodiment of the flat panel lamp of the present invention A cross-sectional view of the structure and an enlarged view of the structure of part A in Figure 3 of the present invention. As shown in those figures, the flat panel lamp 100 of the present invention is a square lamp, which includes a back plate 11, a reflector 13, a light guide plate 15, a light transmissive plate 17, and surrounds the back plate 11, reflector 13, The light guide plate 15 and the four-sided frame 20 around the light transmission plate 17. The back plate 11 is a metal plate body, such as an aluminum plate body. The reflector 13 is a plate that reflects the light source. The light guide plate 15 is a plate body guided by a light source, and is used to guide the incident light source to the transparent plate 17 or to the reflective plate 13. The light-transmitting plate 17 is a uniform light plate or a diffuser plate.

Each frame 20 includes an inner frame 21 and an outer frame 23. The outer frames 23 are joined together by a bonding method or a welding method to form a quadrilateral frame. Wherein, the inner frame 21 includes a fixing portion 211 and a first plate portion 213 arranged on the side of the fixing portion 211, and the outer frame 23 includes a supporting portion 231 and a supporting portion 231 provided on the side of the supporting portion 231. The second board body 233. The fixing portion 211 of the inner frame 21 will be placed on the bearing portion 231 of the outer frame 23, and the fixing portion 211 is locked on the bearing portion 231 through at least one locking component 30 so that the inner frame 21 and the outer frame 23 can be combined together. Furthermore, the bearing portion 231 of the outer frame 23 is an L-shaped metal member. When the inner frame 21 and the outer frame 23 are combined together, the bearing portion 231 will cover the bottom and outer sides of the fixing portion 211.

Furthermore, at least one hole 2111 is provided in the fixing portion 211 of the inner frame 21. The locking assembly 30 includes a threaded member 31 and a threaded post 33. The threaded column 33 is threaded and fixed on the bearing portion 231 of the outer frame 23. When assembling the components of the lamp 100, first, the back plate 11, the reflective plate 13, the light guide plate 15, and the light transmitting plate 17 are sequentially stacked and placed on the second plate portion 233 of the outer frame 23; then, the inner frame The fixing portion 211 of 21 is placed on the bearing portion 231 of the outer frame 23, so that the threaded post 33 on the bearing portion 231 penetrates into the hole 2111 from below the fixing portion 211, and at the same time, the first plate body portion 213 will abut Lean on the back plate 11; after that, the threaded member 31 penetrates into the hole 2111 from above the fixing portion 211 and performs a latching action to lock the threaded member 31 in the hole 2111 with the threaded post 33 together, According to this operation, the inner frame 21 will be locked on the outer frame 23, and the sides of the back plate 11, the reflective plate 13, the light guide plate 15, and the light transmissive plate 17 will be embedded in the first plate body portion 213 of the corresponding frame 20 And the second board 233.

Furthermore, the inner side of the fixing portion 211 of the inner frame 21 will be provided with a groove 215 formed at the connection between the fixing portion 211 and the first plate portion 213 and the connection between the bearing portion 231 and the second plate portion 233. between. A light bar 50 with a plurality of LEDs will be set in the groove 215. The light-emitting surface of the light bar 50 arranged in the groove 215 will face the side surface 151 of the light guide plate 15. When the light emitting diode of the light bar 50 excites the light source, the light source enters the light guide plate 15 through the side 151 of the light guide plate 15; then, part of the light source is guided by the light guide plate 15 to the light transmission plate 17 and directly from the light transmission plate 17 Or, part of the light source is guided by the light guide plate 15 to the light reflector 13, and then enters the light guide plate 15 and the light transmissive plate 17 in order after being reflected by the light reflector 13 and exits the light transmissive plate 17.

In an embodiment of the present invention, the light bar 50 is only arranged in a single inner frame 21. Alternatively, in another embodiment of the present invention, the light bar 50 may also be arranged in the inner frames 215 opposite to each other. Alternatively, in another embodiment of the present invention, the inner frame 215 on the four sides is provided with a light bar 50.

In addition, in another embodiment of the present invention, the light bar 50 is disposed in the groove 215 of the fixing portion 211 of the inner frame 21 through a tearable adhesive or a snap button (such as devil felt) to facilitate the user to replace The light bar 50 in the inner frame 21. Furthermore, the upper surface of the fixing portion 211 of the inner frame 21 may also be provided with a heat dissipation fin 217, and the heat dissipation fin 217 is used to conduct the heat generated by the light bar 50 to the air.

The flat panel lamp 100 of the present invention further includes an elastic layer 12, such as foam. The elastic layer 12 is disposed between the back plate 11 and the reflective plate 13. When the inner frame 21 is locked on the outer frame 23, its locking force will compress the elastic layer 12 toward the setting direction of the back plate 11, the reflective plate 13, the light guide plate 15 and the light transmissive plate 17, so as to fill the back plate 11 and the reflective plate. The gap between the plate 13, the light guide plate 15 and the light transmissive plate 17 further enables the sides of the back plate 11, the reflector 13, the light guide plate 15 and the light transmissive plate 17 to be more tightly embedded in the first side of the frame 20 Between the board body portion 213 and the second board body portion 233.

Furthermore, the reflective plate 13, the light guide plate 15 and the light transmissive plate 17 of this embodiment are glued together to form a multi-layer board. In this way, the light reflector 13, the light guide plate 15 and the light transmissive plate 17 are combined in the form of a multilayer board. Being installed in the frame 20 can not only speed up the installation speed, but also increase the firmness of the reflective plate 13, the light guide plate 15 and the light transmissive plate 17 in the frame 20. In addition, the reflective plate 13, the light guide plate 15 and the light transmitting plate 17 may also be damaged due to factors such as aging or external impact. Here, in an embodiment of the present invention, the light reflecting plate 13, the light guide plate 15 and the light transmitting plate The plates 17 can also be combined with each other through a tearable adhesive or a snap button, so that the user can easily replace the reflective plate 13, the light guide plate 15 and the light transmissive plate 17. Of course, in another embodiment of the present invention, the reflective plate 13, the light guide plate 15 and the light transmissive plate 17 can also be chosen not to be bonded together, relying on the pressing force and elasticity between the first plate body portion 213 and the second plate body portion 233 The layers 12 fill the gaps between each other and are firmly locked in the frame 20.

Please refer to Fig. 5, which is a structural perspective view of a specific operation embodiment for replacing the light bar of the flat panel lamp of the present invention. Factors such as humidity, poor heat dissipation or unstable power supply may cause damage to the electronic components on the light bar 50, such as light-emitting diodes and drivers, and the light bar 50 must be repaired or replaced. As shown in Figure 5, when the flat panel lamp 100 wants to replace the light bar 50, first, the user can also loosen the locking assembly 30 on the frame 20, remove the inner frame 21 from the outer frame 23, and remove it from the inner frame 21 Take out the damaged light bar 50, and then place the repaired light bar 50 or the new light bar 50 back into the inner frame 21, and lock the inner frame 21 on the outer frame 23 again. The light bar 50 completes the maintenance or replacement action. According to the implementation in this way, the lamp 100 of the present invention can not only be easily assembled and replaced with the light bar 50, but also can reuse various components in the lamp 100 to avoid waste of resources and effectively reduce costs.

The above is only one of the preferred embodiments of the present invention, and is not used to limit the scope of implementation of the present invention. That is to say, all the shapes, structures, features and spirits described in the scope of the patent application of the present invention are equivalently changed and All modifications shall be included in the scope of the patent application of the present invention.

100: Flat light fixture 11: Backplane 12: Elastic layer 13: reflector 15: Light guide plate 17: Translucent board 20: border 21: inner frame 211: Fixed part 2111: hole 213: first board body 215: groove 217: heat sink fins 23: Outer frame 231: Bearing Department 233: second board body 31: Threaded parts 33: threaded column 50: light bar

Figure 1: An exploded perspective view of the structure of an embodiment of the flat panel lamp of the present invention.

Figure 2: A perspective view of the structure of an embodiment of the flat panel lamp of the present invention.

Figure 3: A cross-sectional view of the structure of an embodiment of the flat panel lamp of the present invention.

Figure 4: An enlarged view of the structure of part A in Figure 3 of the present invention.

Figure 5: A three-dimensional view of a specific operation embodiment of the flat panel lamp of the present invention for replacing the light bar.

100: Flat light fixture

21: inner frame

2111: hole

215: groove

23: Outer frame

31: Threaded parts

33: threaded column

50: light bar

Claims (10)

A flat lamp, comprising: a backing plate; a reflecting plate; a light guide plate; a transparent plate, the back plate, the reflecting plate, the light guide and the transparent plate disposed sequentially stacked together; and a plurality of frame, Each of the frames includes an inner frame and an outer frame. The inner frame includes a fixing portion and a first plate portion arranged on the side of the fixing portion. The outer frame includes a bearing portion and a bearing portion A second board body part corresponding to the first board body part on the side, the fixing part is arranged on the carrying part and locked on the carrying part through at least one locking component, and the frame is arranged on the back plate , The reflector, the light guide plate, and the periphery of the light transmissive plate, and each side of the back plate, the light reflector, the light guide plate, and the light transmissive plate are respectively embedded in the first plate body portion and the Between the second plate bodies; where a groove is formed on one side of the fixed part of the inner frame, and a light bar with a plurality of light-emitting diodes is arranged in the recess of the fixed part of the inner frame The light-emitting surface of the light bar arranged in the groove faces a side surface of the light guide plate. As described in item 1 of the scope of patent application, the light-transmitting plate is a diffuser plate or a light homogenizing plate. As described in item 1 of the scope of patent application, an elastic layer is arranged between the back plate and the reflector. As described in item 3 of the patent application, the elastic layer is a foam. As described in item 1 of the scope of patent application, wherein the fixing part of the inner frame is provided with at least one hole, the locking assembly includes a threaded member and a threaded post, and the threaded post is penetrated and fixed on the outer frame On the bearing part of the, the threaded member and the threaded column are locked in the hole. As described in the first item of the patent application, a heat dissipation fin is provided on a surface of the fixing portion of the inner frame. As described in the first item of the scope of patent application, the bearing portion of the outer frame is an L-shaped member, and the bearing portion covers the bottom surface and the outer surface of the fixing portion. As described in the first item of the scope of patent application, the light reflecting plate, the light guide plate and the light transmitting plate are glued together. As described in the first item of the patent application, the reflective plate, the light guide plate and the light transmissive plate are combined with each other through a tearable adhesive or a snap button. As described in the first item of the patent application, the light bar is arranged in the groove of the fixing part of the inner frame through a tearable adhesive or a snap button.

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