TWI444565B - Lighting device - Google Patents

Description

Lighting device

The present invention relates to a lighting device, and more particularly to a lighting device that facilitates the disassembly and assembly of a light bar.

A lighting device generally disposed on a ceiling generally includes a frame, an optical film unit disposed in the frame, and an LED light bar disposed in the frame. The LED strip is usually assembled and fixed in the frame before the optical diaphragm unit is assembled and fixed to the frame. Therefore, when the LED strip needs to be repaired or replaced, the optical diaphragm unit must be detached from the frame before the LED strip can be removed. Removal or assembly of LED strips. Since the foregoing LED light bar cannot be separately disassembled or assembled, the disassembly process of the LED light bar is very inconvenient and time-consuming.

Accordingly, it is an object of the present invention to provide a lighting device that can easily and quickly disassemble a light bar and saves disassembly and assembly time.

Thus, the illumination device of the present invention comprises a frame, an optical film layer, a light bar, a carrier plate, a pressing member, and a fixing unit.

The frame includes two first side walls on opposite sides, the two first side walls respectively have adjacent inner side surfaces, and the inner side surfaces of each of the first side walls form a pivoting groove; the optical film layer is disposed on Inside the frame; the light bar is disposed inside the frame and on a side of the optical film layer, the light bar is detachably coupled to the frame, and light generated by the light bar is incident on the optical film layer and passes through the frame Reflecting out of the frame; the carrier plate is rotatably pivotally connected to the pivoting slots of the two first side walls, the carrier plate is configured to carry the optical film layer, and the carrier plate can be shielded from the frame a shielding position under the light bar is rotated to an open position for exposing the light bar to the frame; the pressing member is pressed on the carrier plate and the bottom end of the frame to position the carrier plate in the shielding position; the fixing unit can be The pressing member is detachably fixed to the bottom end of the frame.

The effect of the invention is that the transmission plate can be rotated relative to the frame in a shielding position under the light bar to expose the light bar to an open position of the frame, so that the process of replacing the light bar is more convenient.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the lighting device of the present invention is a lighting fixture that can be installed in an indoor ceiling such as an office or a general home. The first preferred embodiment of the lighting device includes a frame 1 and an optical film. Layer 2, two light bars 3, two carrier plates 4, four press members 5, and four fixing units 6.

The frame 1 includes two first side walls 11 on opposite sides. The two first side walls 11 respectively have adjacent inner wall surfaces 111. The inner wall surface 111 of each first side wall 11 is formed with two pivoting grooves adjacent to opposite sides. 12. The optical film layer 2 is disposed inside the frame 1. Two light bars 3 are disposed inside the frame 1 and respectively located on opposite sides of the optical film layer 2, and the respective light bars 3 are detachably coupled to the frame 1. The light generated by each of the light bars 3 is incident on the optical film layer 2 and It is reflected out of the frame 1.

Each of the carrier boards 4 is rotatably pivotally connected to the corresponding pivoting slots 12 of the two first side walls 11. The two carrier boards 4 respectively carry the optical film layer 2, and each of the carrier boards 4 can be opposite to the frame 1 A shielding position shielded below the corresponding light bar 3 is rotated to an open position in which the corresponding light bar 3 is exposed to the frame 1. Each of the two pressing members 5 is pressed against the opposite end of the corresponding one of the carrier plates 4 and the bottom end of the frame 1, so that the carrier plate 4 is positioned at the shielding position. The four fixing units 6 detachably fix the four pressing members 5 to the bottom end of the frame 1, respectively. Through the foregoing design, the user can pull the carrier plate 4 from the shielding position to the open position by removing the fixing unit 6 and moving the pressing member 5 away from the carrier plate 4, thereby being convenient and rapid. Disassembly and assembly of the light bar 3 can save disassembly and assembly hours.

The specific structure of the lighting device will be described in detail below:

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the frame 1 further includes two extending walls 13 respectively protruding from the inner wall surface 111 of the two first side walls 11 , and two second ends respectively connected to opposite ends of the two first side walls 11 . The side wall 14 and the two protruding walls 15 respectively protruding from the inner wall surfaces of the two second side walls 14 are connected to the two extending walls 13 at opposite ends of the protruding walls 15 respectively.

The optical film layer 2 includes a protective plate 21 disposed inside the frame 1, a film 22 stacked above the protective plate 21, a light guide plate 23 stacked above the film 22, and a stack above the light guide plate 23. Reflector 24. The bottom surface of the protection plate 21 is opposite to the two carrier plates 4. The protection plate 21 is used to protect the film 22, the light guide plate 23 and the reflection plate 24 to prevent the components from being damaged by external force during the disassembly and assembly process of the light bar 3. The situation. The top surface of the reflecting plate 24 abuts against the bottom surfaces of the two extending walls 13 and the bottom surfaces of the two protruding walls 15 adjacent to the four side edges. In the preferred embodiment, the protective plate 21 is transparent, and the film 22 is a diffuser film. Light incident on the film 22 through the light guide plate 23 is diffused by the film 22 and irradiated to the outside of the frame 1 via the protective plate 21.

Referring to Figures 3 and 4, the convex wall 15 of the frame 1 has a lower joint portion spaced above the carrier plate 4, and the light bar 3 is detachably coupled to the lower joint portion. In the preferred embodiment, the lower joint portion As a socket 151, the socket 151 forms a slot 152 (see FIG. 5) with the opening downwards. The light bar 3 includes a circuit board 31 inserted into the slot 152, and a plurality of LEDs disposed on the circuit board 31. The pole body 32 and the two positioning members 33 respectively disposed at opposite ends of the circuit board 31 and detachably fastened to the socket 151. In the preferred embodiment, each positioning member 33 is a sleeve made of rubber or plastic, which is sleeved on the circuit board 31 and can be clamped to the socket 151.

Referring to FIG. 3, FIG. 4 and FIG. 5, each pivoting slot 12 of the frame 1 has a longitudinally extending straight section 121, a horizontal section 122 extending horizontally and communicating with the upright section 121, and a horizontal section 122. And extending to the guiding section 123 of a bottom surface of the first side wall 11. The upright section 121 has an upper end 124 and a lower end 125 opposite the upper end 124.

Each of the supporting plates 4 includes a plate body 41 for shielding the corresponding light bar 3, and two pivoting posts 42 respectively protruding from opposite ends of the plate body 41. The longitudinal direction of the plate body 41 of the carrier plate 4 is rectangular and has a first bearing surface 411, a second bearing surface 412 connected to one end of the first bearing surface 411 and having a length smaller than the length of the first bearing surface 411, and a connection. A rounded corner 413 between the first bearing surface 411 and the second bearing surface 412. In other words, the first bearing surface 411 is located on the long side of the plate body 41, and the second bearing surface 412 is located on the short side of the plate body 41. The longitudinal section of the pivot post 42 has an elliptical shape and has a long axis 421 and a short axis 422 intersecting. In order to enable the carrier board 4 to pivot smoothly within the upright section 121 of the pivoting slot 12, it is not easy to slide out of the horizontal section 122. In the present embodiment, the width W1 of the guiding section 123 of the pivoting slot 12 is designed to be Slightly larger than the length L1 of the long axis 421, the width W2 of the horizontal section 122 is designed to be slightly longer than the length L2 of the short axis 422, and the width W3 of the upright section 121 is designed to be longer than the length L1 of the long axis 421.

The four pressing members 5 are all in a straight strip shape, and each of the pressing members 5 is at an angle with the corresponding two supporting plates 4, and each of the pressing members 5 forms two through holes 51 at opposite ends, and the two through holes 51 respectively and the first A screw hole 112 at the bottom end of the side wall 11 and a screw hole 141 at the bottom end of the second side wall 14 correspond to each other. Each fixing unit 6 includes two screws 61. The two screws 61 are respectively disposed through the two through holes 51 and are respectively screwed. In the two screw holes 112, 141, the fixing unit 6 can lock the corresponding pressing member 5 at the bottom end of the first side wall 11 and the bottom end of the second side wall 14, so that the pressing member 5 is positioned on the pressing plate. 4 bottom position.

It should be noted that, in order to facilitate the description of the assembly and actuation relationship of the lighting device, only the assembly relationship of a light bar 3, a pivoting groove 12 and a carrier plate 4 is presented.

Referring to Figures 3, 4 and 5, when assembling the lighting device, each of the light bars 3 is first attached to the lower joint portion. The two positioning members 33 of the light bar 3 must be pulled outward toward the first side wall 11 for the circuit board 31 to be inserted into the slot 152 (see FIG. 9) of the socket 151, and then the two positioning members 33 are inward. The circuit board 31 is bonded and secured to the socket 151. Then, the optical film layer 2 is placed in the frame 1 such that the top surface of the reflecting plate 24 abuts against the bottom surfaces of the two extending walls 13 of the frame 1 and the bottom surfaces of the two protruding walls 15. Of course, the optical film layer 2 can be assembled to the frame 1 in the order of assembly, and the two light bars 3 can be assembled in the frame 1.

Next, each of the carrier plates 4 is assembled into the pivoting slots 12 of the two first side walls 11 of the frame 1. Since the width W1 of the guiding section 123 of the pivoting groove 12 is designed to be slightly longer than the length L1 of the long axis 421, the long axis 421 of the pivot post 42 of the carrier plate 4 can penetrate in the direction of the arrow shown in FIG. In the guiding section 123 of the corresponding pivoting groove 12, the second bearing surface 412 of the plate body 41 of each carrier plate 4 is abutted against the bottom surface of the protective plate 21. Then, the plate body 41 is inclined at an angle, and the plate body 41 is pushed and pushed in the direction of the arrow shown in FIG. 6, and penetrates into the horizontal section 122.

When the plates 41 are rotated to a position where the first bearing surface 411 is parallel to the protection plate 21 and the plate body 41 abuts against the second side wall 14, the pivot post 42 of the carrier plate 4 is located in the upright section 121, and then, the bearing The board 4 is moved up such that the first bearing surface 411 abuts against the bottom surface of the protection board 21, and the pivot post 42 penetrates the upper end 124 of the upright section 121, so that the carrier board 4 is shielded from the light bar 3 as shown in FIG. The shaded position below.

Then, the pressing members 5 are pressed against the corresponding carrier plates 4, and the two through holes 51 respectively correspond to the screw holes 112 of the first side wall 11 and the screw holes 141 of the second side wall 14, respectively. The two screws 61 of the fixing unit 6 are respectively threaded into the two through holes 51 of the corresponding pressing member 5 and screwed into the corresponding two screw holes 112, 141, that is, the assembly of the lighting device is completed. Since the light generated from the light bar 3 is incident on the optical film layer 2 and reflected out of the frame 1 by the prior art, it will not be described in detail herein.

Referring to Figures 8 and 9, when one of the two light bars 3 of the lighting device is to be replaced, the following two methods can be employed. One of the ways is that the screw 61 of the fixing unit 6 can be disassembled on the first side wall 11 and the screw 61 locked to the second side wall 14 can be used as a pivoting shaft to rotate the pressing member 5 to the second. At the bottom end of the side wall 14, then, the carrier plate 4 is turned down by hand in the direction indicated by the arrow in FIG. 8. During the flipping process of the carrier plate 4, the guide fillet 413 will be in frictional contact with the protective plate 21, thereby avoiding The carrier plate 4 scratches the protective plate 21 during the turning process. When the carrier plate 4 is rotated until the second bearing surface 412 abuts against the bottom end of the protection plate 21, and the pivot post 42 is located at the lower end 125 of the upright segment 121, the carrier plate 4 is positioned such that the light bar 3 is exposed to the frame 1. The open position shown in Figure 9. Then, the two positioning members 33 of the light bar 3 of the defective product are respectively turned outward toward the first side wall 11, the light bar 3 of the defective product is taken out, and the circuit board 31 of the good light bar 3 is inserted into the socket 151. In the slot 152, the two positioning members 33 are further inwardly joined to the circuit board 31 and fastened to the socket 151. After the replacement of the light bar 3 is completed, the carrier plate 4 is rotated to the shielding position, and then the rotary pressing member 5 is rotated to be pressed on the bottom end of the carrier plate 4, and the screw 34 is inserted through the through hole 51 of the pressing member 5 and screwed. The lock is locked in the screw hole 112 of the first side wall 11, and the replacement action is completed as shown in FIG.

Alternatively, the two screws 61 of each fixing unit 6 can be detached from the screw holes 112 of the first side wall 11 and the screw holes 141 of the second side wall 14 respectively, so that the pressing member 5 and the screw 61 are separated from the frame 1. When the action of replacing the light bar 3 is completed, the two screws 61 are locked to the screw holes 112 of the first side wall 11 of the frame 1 and the screw holes 112 of the second side wall 14, as shown in FIG.

Compared with the general lighting device, the foregoing two methods can more easily and quickly disassemble the light bar 3 and save disassembly and assembly man-hours.

Referring to FIG. 2, it should be noted that, in this embodiment, the lighting device includes two light bars 3, two carrier plates 4, four pressing members 5, and four fixing units 6 assembled and assembled, but For this reason, the lighting device can also include only one light bar 3, a carrier plate 4, a pressing member 5, and a fixing unit 6 assembled and matched, which can also achieve the effect of the invention.

Referring to Figures 10 and 11, a second preferred embodiment of the illumination device of the present invention, the main difference from the first preferred embodiment is the implementation of another combination of the lower joint portion of the projecting wall 15 and the light bar 3. Aspect.

The lower joint portion of the projecting wall 15 is a lower surface 153, and the lower surface 153 is formed with two spaced apart screw holes 154 (only one of which is shown), and the light strip 3 includes a circuit board 31 that abuts against the lower surface 153. a plurality of LEDs 32 disposed on the circuit board 31, and two screws 34 (only one of which is shown), and the circuit board 31 forms two through holes 311 corresponding to the positions of the two screw holes 154 (Fig. Only one of them is shown, and each screw 34 is threaded through the corresponding through hole 311 and screwed into the screw hole 154 corresponding to the through hole 311.

The assembly of the second preferred embodiment is substantially the same as that of the first preferred embodiment. The difference is that the circuit board 31 of each of the light bars 3 is assembled on the corresponding protruding wall 15 and can be locked to the protruding by two screws 34. The lower surface 153 of the wall 15. If the light bar 3 is to be removed, it can be achieved by disassembling the two screws 34 on opposite sides of the circuit board 31.

In summary, the illuminating device of the present invention can be rotated through the carrier plate 4 relative to the frame 1 at a shielding position under the light bar 3 to expose the light bar 3 to an open position of the frame 1, so that the light bar 3 can be replaced. The process is simpler and it is indeed possible to achieve the object of the present invention.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1. . . frame

11. . . First side wall

111. . . Inner wall

112. . . Screw hole

12. . . Pivot slot

121. . . Upright section

122. . . Horizontal section

123. . . Guide segment

124. . . Upper end

125. . . Lower end

13. . . Extension wall

14. . . Second side wall

141. . . Screw hole

15. . . Protruding wall

151. . . socket

152. . . Slot

153. . . lower surface

2. . . Optical film layer

twenty one. . . Protection board

twenty two. . . film

twenty three. . . Light guide

twenty four. . . Reflective plate

3. . . Light

31. . . Circuit board

311. . . perforation

32. . . Light-emitting diode

33. . . Positioning member

34. . . Screw

4. . . Carrier board

41. . . Plate body

411. . . First bearing surface

412. . . Second bearing surface

413. . . Lead fillet

42. . . Pivot column

421. . . Long axis

422. . . Short axis

5. . . Pressed part

51. . . Through hole

6. . . Fixed unit

61. . . Screw

W1. . . width

W2. . . width

W3. . . width

L1. . . length

L2. . . length

Figure 1 is a perspective view showing a first preferred embodiment of the lighting device of the present invention;

Figure 2 is an exploded perspective view showing the preferred embodiment;

3 is a partial exploded perspective view showing a combination of a frame, a light bar, a carrier plate, a pressing member, and a fixing unit;

Figure 4 is a partial perspective view showing the light bar inserted into a slot;

Figure 5 is a cross-sectional view showing a carrier plate to be inserted into a pivoting slot;

Figure 6 is a cross-sectional view showing the pivotal post of the carrier plate inserted along the horizontal section of the pivoting slot;

Figure 7 is a cross-sectional view showing the pivot post of the carrier plate inserted into the upright section of the pivoting slot, and the carrier plate is in a shielding position;

Figure 8 is a schematic cross-sectional view showing the rounded corner of the carrier plate against the bottom surface of the protective plate;

Figure 9 is a cross-sectional view showing the carrier plate in an open position;

Figure 10 is a cross-sectional view showing the assembly relationship of the second preferred embodiment of the lighting device of the present invention, and the carrier plate is in the shielding position;

Figure 11 is a partial perspective view showing the light bar being inserted into the lower surface of the protruding wall.

1. . . frame

11. . . First side wall

14. . . Second side wall

2. . . Optical film layer

twenty one. . . Protection board

twenty two. . . film

twenty three. . . Light guide

twenty four. . . Reflective plate

3. . . Light

4. . . Carrier board

41. . . Plate body

42. . . Pivot column

5. . . Pressed part

6. . . Fixed unit

61. . . Screw

Claims (9)

A lighting device comprising: a frame comprising two first side walls on opposite sides, the two first side walls respectively having adjacent inner side surfaces, and the inner side surfaces of each of the first side walls form a pivoting groove; An optical film layer disposed inside the frame; a light bar disposed inside the frame and located on a side of the optical film layer, the light bar being detachably coupled to the frame, and the light generated by the light bar is incident And the optical film layer is reflected out of the frame; a carrier plate is rotatably pivotally connected to the pivoting grooves of the two first side walls, the carrier plate is configured to carry the optical film layer, The carrier plate is rotatable relative to the frame by a shielding position shielded under the light bar to an open position for exposing the light bar to the frame; a pressing member is pressed on the carrier plate and the bottom end of the frame to enable the carrier The plate is positioned at the shielding position; and a fixing unit detachably fixing the pressing member to the bottom end of the frame. The illuminating device of claim 1, wherein the frame further comprises a second side wall connected to an adjacent one end of the two first side walls, and a protruding wall protruding from the inner wall surface of the second side wall The protruding wall has a lower joint spaced above the carrier plate, the light strip being detachably coupled to the lower joint. The lighting device of claim 2, wherein the lower joint portion is a socket, the socket forms a slot with an opening facing downward, the light strip includes a circuit board inserted into the slot, and a plurality of a light emitting diode disposed on the circuit board, and two positioning members respectively disposed at opposite ends of the circuit board and detachably fastened to the socket. The lighting device of claim 2, wherein the lower joint portion is a lower surface, the lower surface is formed with two spaced screw holes, and the light strip includes a circuit board abutting the lower surface, a plurality of LEDs disposed on the circuit board, and two screws, the circuit board forming two perforations corresponding to the positions of the two screw holes, each of the screws being disposed through the corresponding perforation and being screwed The screw hole corresponding to the through hole. The illuminating device of claim 2, wherein each of the pivoting slots has a longitudinally extending upright section, the upright section having an upper end and a lower end opposite to the upper end, the carrier board including a a plate body for shielding the light bar, and two pivoting columns respectively protruding from opposite ends of the plate body, each of the pivoting columns being disposed in the corresponding upright segment, when the carrier plate is in the shielding position The pivot post is located at an upper end of the corresponding upright section, and when the carrier board is in the open position, each pivot post is located at a lower end of the corresponding upright section. The illuminating device of claim 5, wherein the longitudinal section of the plate body is rectangular and has a first bearing surface, and one end is connected to one end of the first bearing surface and the length is less than the length of the first bearing surface. a second bearing surface, when the carrier plate is in the shielding position, the first bearing surface of the plate body abuts against the bottom end of the optical film layer, and when the carrier plate is in the open position, the plate body is The two bearing surfaces abut against the bottom end of the optical film layer. The illuminating device of claim 5, wherein each of the pivoting grooves further has a horizontal section extending in a horizontal direction and communicating with the horizontal section, and a communicating with the horizontal section and extending to the corresponding first side wall a guiding section of a bottom surface, the longitudinal section of the pivoting column is elliptical, and has a long axis and a short axis intersecting, and the guiding section of the pivoting groove has a width slightly larger than the long axis The length, the width of the horizontal segment is slightly greater than the length of the minor axis, and the width of the upright segment is greater than the length of the major axis. The illuminating device according to claim 2, wherein the pressing member has a straight strip shape and is at an angle with the carrier plate, and the pressing member forms two through holes at opposite ends, and the fixing unit includes two separate holes. The two through holes are respectively locked to the screws of the corresponding first side wall and the second side wall. The illuminating device of claim 1, wherein the optical film layer comprises a protective plate disposed inside the frame and having a bottom surface abutting the carrier plate, a film stacked on top of the protective plate, and a stack a light guide plate disposed above the film, and a stack of reflective plates disposed above the light guide plate.