High efficiency linear lighting device

Abstract

A high light efficiency linear lighting device includes a tubular lampshade, a support plate and a light source plate. The tubular lampshade has a light emitting portion and a light shielding portion. The light emitting surface of the light emitting portion is a curved surface. The bottom of the light emitting portion has a lower opening, and the top of the light shielding portion has an upper opening. The bottom of the light emitting portion is connected to the top of the light shielding portion, and the width of the bottom of the light emitting portion is greater than the width of the top of the light shielding portion. The support plate is disposed in the light shielding portion and adjacent to the upper opening. The light source plate is disposed on one side of the support plate and faces the light emitting portion.

Description

TECHNICAL FIELD

[0001] The present invention relates to a lighting device, in particular, a high light efficiency linear lighting device. BACKGROUND

[0002] Inverted-faceted lighting device has unique modeling and lighting characteristics. Its main feature is the design of its triangular base or inverted conical base. The design is conducive to uniform distribution of light and efficient use of space, so it has been widely used in various buildings.

[0003] However, the existing inverted-faceted lighting device still has many shortcomings to be improved. For example, the optical structure of the existing inverted-faceted lighting device causes part of the light generated by its light source plate to be lost, which greatly reduces the light efficiency of the lighting device.

[0004] In addition, the installation procedure of the existing inverted-faceted lighting device is relatively complex, which requires more manpower, resulting in an increase in labor costs. SUMMARY

[0005] According to an embodiment of the present invention, a high light efficiency linear lighting device is provided, which includes a tubular lampshade, a support plate and a light source plate. The tubular lampshade has a light emitting part and a light shielding part. The light emitting surface of the light emitting part is a curved surface. The bottom of the light emitting part has a lower opening, and the top of the light shielding part has an upper opening. The bottom of the light emitting part is connected to the top of the light shielding part, and the width of the bottom of the light emitting part is greater than the width of the top of the light shielding part. The support plate is arranged in the light shielding part and adjacent to the upper opening. The light source plate is arranged on one side of the support plate and faces the light emitting part.

[0006] In an embodiment, the tubular lampshade is made of plastic.

[0007] In an embodiment, the linear lighting device further includes a power module. The power module is arranged on the other side of the support plate and located in the light shielding part, and the power module is electrically connected to the light source plate.

[0008] In an embodiment, the linear lighting device further includes a base. The tubular lampshade is arranged on the base.

[0009] In an embodiment, the base has a central groove. The tubular lampshade is arranged on the central groove and closes the central groove, so that the light shielding part is located in the central groove and the light emitting part is exposed to the central groove.

[0010] In an embodiment, the linear lighting device further includes a clamp. The clamp is U-shaped and includes a bottom plate, two side walls and two protruding parts. The bottom plate is fixed to the bottom of the central groove, the two protruding parts are arranged on the two side walls respectively, the light shielding part has two grooves arranged on the two sides of the light shielding part respectively, and the two protruding parts are embedded in the two grooves respectively, so that the clamp and the light shielding part are fixed to each other.

[0011] In one embodiment, the bottom of the central groove further has a mounting hole, and the mounting hole is in the shape of a keyhole.

[0012] In one embodiment, the linear lighting device further comprises two end caps and two safety ropes. The two end caps are respectively arranged at the two ends of the tubular lampshade and are connected to the two ends of the base through the two safety ropes.

[0013] In one embodiment, each end cap has a fixing structure. Each safety rope comprises a rope body and a ball head connected to one end of the rope body. The ball head is fixed to the fixing structure, and the other end of the rope body is fixed to one of the two ends of the base.

[0014] In one embodiment, the fixing structure comprises a post and a fixing hook. One end of the fixing hook is fixed to the bottom of the end cap, and the other end of the fixing hook is spaced from the bottom of the end cap to form an entrance. The post is fixed to the bottom of the end cap and located at one side of the entrance. The rope body passes through the central hole of the fixing hook so that the ball head is limited by the post and the fixing hook at the same time.

[0015] As described above, the linear lighting device with high light efficiency according to the embodiments of the present application can have one or more of the following advantages:

[0016] (1) In one embodiment of the present application, the linear lighting device comprises a tubular lampshade, a support plate and a light source plate. The tubular lampshade has a light emitting portion and a light shielding portion. The light emitting surface of the light emitting portion is a curved surface. The bottom of the light emitting portion has a lower opening, and the top of the light shielding portion has an upper opening. The bottom of the light emitting portion is connected to the top of the light shielding portion, and the width of the bottom of the light emitting portion is greater than the width of the top of the light shielding portion. The support plate is arranged in the light shielding portion and adjacent to the upper opening. The light source plate is arranged at one side of the support plate and faces the light emitting portion. Since the width of the bottom of the light emitting portion is greater than the width of the top of the light shielding portion, most of the light emitted by the light source plate can pass through the light emitting portion without being blocked by the light shielding portion. The above optical structure design can effectively reduce the light loss of the light source plate, greatly improving the light efficiency of the linear lighting device.

[0017] (2) In one embodiment of the present application, the electronic components such as the light source plate and the power module of the linear lighting device are arranged in the tubular lampshade thereof. The tubular lampshade can be made of plastic, so that the tubular lampshade is a full plastic structure. The full plastic structure can effectively prevent the generation of reverse voltage, greatly improving the safety of the linear lighting device.

[0018] (3) In one embodiment of the present application, the power module of the linear lighting device is arranged in the tubular lampshade thereof, and the power module is not arranged in the power box, but can be only covered by a plastic film. The above built-in power module design not only can effectively prevent the generation of reverse voltage to improve safety, but also can greatly simplify the structure of the linear lighting device.

[0019] (4) In one embodiment of the present application, the linear lighting device further comprises a base and a plurality of clamps, and the tubular lampshade is arranged on the base. The base has a central recess, and the tubular lampshade is arranged on the central recess and seals the central recess, so that the light shielding portion is located in the central recess and the light emitting portion is exposed to the central recess. Each clamp is U-shaped and comprises a bottom plate, two side walls and two protruding portions. The bottom plate is fixed to the bottom of the central recess, and the two protruding portions are arranged on the two side walls respectively. The light shielding portion has two recesses arranged on the two sides of the light shielding portion respectively, and the two protruding portions are embedded in the two recesses respectively, so that the clamp and the light shielding portion are fixed to each other. Through the above-mentioned one-side locking structure, the tubular lampshade does not need to be arranged with a locking structure and can be fixed to the base, so that the structure of the tubular lampshade is more simplified. In addition, the plurality of clamps are not exposed to the central recess, so that the structure of the base can also be more simplified. The above-mentioned structure design makes the linear lighting device more convenient to transport and not easy to be damaged during transportation.

[0020] (5) In one embodiment of the present application, the light source plate of the linear lighting device is arranged on the support plate, the support plate is made of high thermal conductivity material (various metals such as copper, iron, aluminum, stainless steel, etc.), and is arranged in the tubular lampshade. Therefore, the support plate not only can provide heat dissipation effect, but also can achieve supporting effect to improve the structural strength of the tubular lampshade. In addition, the light source plate also has reflective paint to improve light efficiency. In this way, the service life of the linear lighting device can be effectively improved and the light efficiency can be further improved to meet the needs of practical application.

[0021] (6) In one embodiment of the present application, the linear lighting device further comprises two end covers and two safety ropes. The two end covers are arranged at the two ends of the tubular lampshade respectively, and are connected with the two ends of the base through the two safety ropes respectively. Each end cover has a fixing structure. Each safety rope comprises a rope body and a ball head connected with one end of the rope body. The ball head is fixed to the fixing structure, and the other end of the rope body is fixed to one of the two ends of the base. The fixing structure comprises a column and a fixing hook. One end of the fixing hook is fixed to the bottom of the end cover, and the other end of the fixing hook has a spacing with the bottom of the end cover to form an entrance. The column is fixed to the bottom of the end cover and located at one side of the entrance. The rope body passes through the central hole of the fixing hook so that the ball head is limited by the column and the fixing hook at the same time. Through the design of the above-mentioned fixing structure, the two end covers can be stably and quickly connected with the two ends of the base through the two safety ropes, so as to prevent the tubular lampshade from falling. In addition, the user can also temporarily hang the tubular lampshade on the base through the two safety ropes to perform wiring operation. Therefore, the installation procedure of the linear lighting device can be greatly simplified to reduce labor cost. At the same time, the safety of the linear lighting device can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1A perspective view of a high-light-efficiency linear lighting device according to a first embodiment of the present invention;

[0023] Figure 2 1 is a first cross-sectional view of the high-light-efficiency linear lighting device according to the first embodiment of the present invention (without the support plate, light source plate, and power module);

[0024] Figure 3 is a second cross-sectional view of the high-light-efficiency linear lighting device according to the first embodiment of the present invention (including a support plate, a light source plate, and a power module);

[0025] Figure 4 is a third cross-sectional view of the high-light-efficiency linear lighting device according to the first embodiment of the present invention;

[0026] Figure 5 A perspective view of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0027] Figure 6 An exploded view of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0028] Figure 7 A side view of a base of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0029] Figure 8 is a schematic diagram of a combination of a base and a tubular lampshade of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0030] Figure 9 is a schematic diagram of electrical connection lines of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0031] Figure 10 A first schematic diagram of an installation procedure of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0032] Figure 11 for Figure 10 The first partial enlarged view of the K1 area;

[0033] Figure 12 for Figure 10 The second partial enlarged view of the K1 area;

[0034] Figure 13 A second schematic diagram of an installation procedure of a high-light-efficiency linear lighting device according to a second embodiment of the present invention;

[0035] Figure 14 for Figure 13 The first partial enlarged view of the K2 area;

[0036] Figure 15 for Figure 13a second partial enlarged view of the K2 region of FIG. 1;

[0037] Figure 16 a third partial enlarged view of the K2 region of FIG. 1; Figure 13

[0038] Figure 17 a perspective view of a high light efficiency linear lighting device according to a third embodiment of the present application;

[0039] Figure 18 a perspective view of a high light efficiency linear lighting device according to a fourth embodiment of the present application.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1: linear lighting device; 11 - tubular lampshade; 111 - light emitting portion; 112 - light shielding portion; 12 - light source board; 121 - circuit board; 122 - light source; 13 - support board; 14 - power module; 15 - end cover; 151 - stand; 152 - fixing hook; 16, 16', 16" - base; 17 - clamping; 171 - bottom plate; 172 - side wall; 173 - protruding portion; 18 - safety rope; 181 - rope body; 182 - ball head; 19 - electric connection wire; 20 - terminal; V1 - L-shaped hook portion; V2 - limiting plate; TP - adhesive tape; SR - sealing ring; FX - locking member; LS - light emitting surface; Cs - central groove; Rs - recess; Bs - knock-off hole; Gs - mounting hole; Es - entrance; K1, K2 - region; L1 - width of bottom of light emitting portion; L2 - width of top of light shielding portion; A1, A2, A3 - arrow.

[0042] The detailed features and advantages of the present application are described hereinafter in embodiments, which are sufficient to enable any person skilled in the art to understand the technical contents of the present application and to implement the same, and according to the contents disclosed in the present specification, claims and drawings, any person skilled in the art can easily understand the objects and advantages related to the present application. DETAILED DESCRIPTION

[0043] Embodiments of a high light efficiency linear lighting device according to the present application will be described below with reference to the drawings. In the drawings, the components in the embodiments can be exaggerated or reduced in size for the sake of clarity and convenience in the description of the drawings. In the following description and / or claims, when referring to a component being "connected" or "coupled" to another component, it can be directly connected or coupled to the other component, or intervening components can be present; and when referring to a component being "directly connected" or "directly coupled" to another component, no intervening components are present for describing the relationship between the components or layers. For the sake of convenience in understanding, the same components in the following embodiments are explained by using the same reference numerals.

[0044] Referring to Figure 1 ,​Figure 2 and Figure 3 . Figure 1 A perspective view of a high-efficiency linear lighting device according to a first embodiment of the present application. Figure 2 A first cross-sectional view of a high-efficiency linear lighting device according to the first embodiment of the present application (without support plate, light source plate and power module). Figure 3 A second cross-sectional view of a high-efficiency linear lighting device according to the first embodiment of the present application (with support plate, light source plate and power module). Figure 4 A third cross-sectional view of a high-efficiency linear lighting device according to the first embodiment of the present application. As shown in the figure, the linear lighting device 1 comprises a tubular lampshade 11, a light source plate 12, a support plate 13, a power module 14 and two end caps 15.

[0045] The tubular lampshade 11 has a light emitting portion 111 and a light shielding portion 112. The two end caps 15 are respectively arranged at the two ends of the tubular lampshade 11. In this embodiment, the tubular lampshade 11 is a full-plastic structure made of plastic (this material can be any existing plastic material, which can be but is not limited to PMMA, PC, etc.). The light emitting surface LS of the light emitting portion 111 is a curved surface. The bottom of the light emitting portion 111 has a lower opening, while the top of the light shielding portion 112 has an upper opening; the light shielding portion 112 has two recesses Rs respectively arranged at its two sides. The bottom of the light emitting portion 111 is connected to the top of the light shielding portion 112. In addition, the width L1 of the bottom of the light emitting portion 111 is greater than the width L2 of the top of the light shielding portion 112. The full-plastic structure described above can effectively prevent the generation of reverse voltage, so that the safety of the linear lighting device 1 can be greatly improved.

[0046] The support plate 13 is arranged inside the light shielding portion 112 and adjacent to the upper opening. The cross section of the support plate 13 is U-shaped, and the two sides of the support plate 13 are respectively fixed to the two inner walls of the light shielding portion 112. Each inner wall has an L-shaped hook portion V1 and a limiting plate V2. The limiting plate V2 is arranged above the L-shaped hook portion V1. The two sides of the support plate 13 can be respectively embedded in the two L-shaped hook portions V1, and the two limiting plates V2 can provide a limiting function to prevent the support plate 13 from being separated from the two L-shaped hook portions V1. The support plate 13 can be made of a high-thermal-conductivity material. This material can be any metal, such as copper, iron, aluminum, stainless steel, etc. Therefore, the support plate 13 not only can provide a heat dissipation effect, but also can achieve a supporting effect to improve the structural strength of the tubular lampshade 11.

[0047] The light source board 12 is disposed on one side of the support board 13 and faces the light emitting portion 111. The light source board 12 can include a circuit board 121 and a plurality of light sources 122 disposed on the circuit board 121. In this embodiment, the plurality of light sources 122 can be light emitting diodes (LEDs). In another embodiment, the light source board 12 can be replaced by other light emitting units (e.g., fluorescent lamps, light bulbs, etc.). The light source board 12 also has a reflective coating thereon, which can provide a reflective effect to improve the light efficiency.

[0048] The power module 14 is disposed on the other side of the support board 13 and located within the light shielding portion 112. The power module 14 is electrically connected to the light source board 12. The power module 14 can be directly disposed within the light shielding portion 112 without the need of an additional power box. In addition, the power module 14 can be only covered by a plastic film. In one embodiment, the power module 14 is a light emitting diode driver. In another embodiment, the power module 14 can also be a driver for other existing light sources. The built-in power module 14 design not only improves the safety of the linear lighting device 1, but also greatly simplifies the structure of the linear lighting device 1.

[0049] As can be seen from the above, since the width L1 of the bottom of the light emitting portion 111 is greater than the width L2 of the top of the light shielding portion 112, most of the light emitted by the light source board 12 can pass through the light emitting portion 111 without being blocked by the light shielding portion 112. The optical structure design effectively reduces the light loss of the light source board 12 and greatly improves the light efficiency of the linear lighting device 1.

[0050] Of course, this embodiment is only used for illustration and not to limit the scope of the present application, and equivalent modifications or changes made according to the high light efficiency linear lighting device of this embodiment should still be included in the patent scope of the present application.

[0051] Please refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , and please refer to Figures 1 to 4 . Figure 5 is a perspective view of a high light efficiency linear lighting device according to a second embodiment of the present application. Figure 6 is an exploded view of the high light efficiency linear lighting device according to the second embodiment of the present application. Figure 7 is a side view of a base of the high light efficiency linear lighting device according to the second embodiment of the present application. Figure 8 is a schematic view of a combination of the base and the tubular lamp shade of the high light efficiency linear lighting device according to the second embodiment of the present application. Figure 9 is a schematic view of an electrical connection wire of the high light efficiency linear lighting device according to the second embodiment of the present application. As shown, the linear lighting device 1 includes a tubular lamp shade 11, a light source board 12, a support board 13, a power module 14, and two end covers 15.

[0052] The above components are the same as the previous embodiment. Different from the previous embodiment, in this embodiment, the linear lighting device 1 further comprises a base 16, two clamps 17 and two safety ropes 18.

[0053] The base 16 has a central groove Cs. The tubular lampshade 11 is arranged on the central groove Cs and seals the central groove Cs, so that the light shielding part 112 is located in the central groove Cs and the light emitting part 111 is exposed to the central groove Cs. In addition, the base 16 can also have knock-out holes Bs at both ends. If multiple linear lighting devices 1 are to be connected in series, the covers of the multiple knock-out holes Bs can be removed. Then, the electric connection wires can pass through the multiple knock-out holes Bs to electrically connect the multiple linear lighting devices 1.

[0054] The two clamps 17 can be made of metal materials, such as copper, iron, aluminum, stainless steel, etc. Each clamp 17 is U-shaped and comprises a bottom plate 171, two side walls 172 and two protruding parts 173. The bottom plate 171 is fixed to the bottom of the central groove Cs, and the two protruding parts 173 are arranged on the two side walls 172, respectively. Each clamp 17 is not exposed to the central groove Cs. As described above, the light shielding part 112 has two grooves Rs arranged on both sides of the light shielding part 112, respectively, and the two protruding parts 173 are embedded in the two grooves Rs, respectively, so that the clamp 17 and the light shielding part 112 are fixed to each other. In this way, the tubular lampshade 11 is fixed to the base 16 through the two clamps 17. The number of clamps 17 can be adjusted according to actual needs; in another embodiment, the linear lighting device 1 can only include one clamp 17 or more than three clamps 17. Through the above-mentioned one-side locking structure, the tubular lampshade 11 does not need to be provided with a locking structure and can be fixed to the base 16, so that the structure of the tubular lampshade 11 is more simplified. In addition, the multiple clamps 17 are not exposed to the central groove Cs, so that the structure of the base 16 can also be more simplified. The above-mentioned structure design makes the linear lighting device 1 more convenient to transport and less likely to be damaged during transportation.

[0055] The two end covers 15 are arranged at both ends of the tubular lampshade 11, respectively, and are connected to both ends of the base 16 through the two safety ropes 18, respectively. The two end covers 15 can achieve waterproof effect and dustproof effect, so as to improve the safety and service life of the linear lighting device 1.

[0056] The linear lighting device 1 also has an electric connecting wire 19 and a terminal 20. The power module 14 is connected with the electric connecting wire 19, and the electric connecting wire 19 is connected to the terminal 20 through a connecting hole. The connecting hole is arranged near one of the end covers 15. The connecting hole can be provided with a sealing ring SR (such as a rubber ring) to achieve waterproof and dustproof effects. The terminal 142 can be arranged at the back of the tubular lampshade 11. In this embodiment, the electric connecting wire 19 can be fixed to the back of the tubular lampshade 11 by means of a tape TP or other similar means, but is not limited thereto.

[0057] As can be seen from the above, since the width of the bottom of the light-emitting part 111 is greater than the width of the top of the light-blocking part 112, most of the light emitted by the light source plate 12 can pass through the light-emitting part 111 without being blocked by the light-blocking part 112. The above optical structure design can effectively reduce the light loss of the light source plate 12, greatly improving the light efficiency of the linear lighting device 1.

[0058] In addition, the electronic components such as the light source plate 12 and the power module 14 of the linear lighting device 1 are arranged in the tubular lampshade 11 thereof. The tubular lampshade 11 can be made of plastic, so that the tubular lampshade 11 is a full-plastic structure. The full-plastic structure can effectively prevent the generation of reverse voltage, greatly improving the safety of the linear lighting device 1.

[0059] In addition, the power module 14 of the linear lighting device 1 is arranged in the tubular lampshade 11 thereof, and the power module 14 is not arranged in a power box, but can be only covered by a plastic film. The above built-in power module design not only can effectively prevent the generation of reverse voltage to improve safety, but also can greatly simplify the structure of the linear lighting device 1.

[0060] Furthermore, through the above one-side locking structure, the tubular lampshade 11 does not need to be provided with a locking structure to be fixed on the base 16, so that the structure of the tubular lampshade 11 is further simplified. In addition, the plurality of clamps 17 are not exposed to the central groove Cs, so that the structure of the base 16 can also be further simplified. The above structure design makes the linear lighting device 1 more convenient to transport, and less likely to be damaged during transportation.

[0061] In addition, the light source plate 12 of the linear lighting device 1 is arranged on the support plate 13, and the support plate 13 can be made of a high-thermal-conductivity material (various metals such as copper, iron, aluminum, stainless steel, etc.) and arranged in the tubular lampshade 11. Therefore, the support plate 13 not only can provide a heat dissipation effect, but also can achieve a supporting effect to improve the structural strength of the tubular lampshade 11. In addition, the light source plate 12 also has a reflective coating to improve the light efficiency. In this way, the service life of the linear lighting device 1 can be effectively improved and the light efficiency can be further improved to meet the requirements of practical applications.

[0062] Therefore, the linear lighting device 1 is suitable for application in the inverse-fuji-shaped lighting device to achieve high efficiency. The linear lighting device 1 can also be applied to other existing various lighting devices.

[0063] Of course, the present embodiment is only used for illustration and not limit the scope of the present application, equivalent modifications or changes made according to the high light efficiency linear lighting device of the present embodiment should still be included in the patent scope of the present application.

[0064] It is worth mentioning that the existing inverse-fuji-shaped lighting device still has many shortcomings to be improved. For example, the optical structure of the existing inverse-fuji-shaped lighting device causes part of the light generated by the light source plate to be lost, which greatly reduces the light efficiency of the lighting device. In addition, the installation procedure of the existing inverse-fuji-shaped lighting device is relatively complex, which requires more manpower, resulting in an increase in labor costs. In contrast, according to the embodiment of the present application, the linear lighting device includes a tubular lampshade, a support plate and a light source plate. The tubular lampshade has a light emitting part and a light shielding part. The light emitting surface of the light emitting part is a curved surface. The bottom of the light emitting part has a lower opening, and the top of the light shielding part has an upper opening. The bottom of the light emitting part is connected to the top of the light shielding part, and the width of the bottom of the light emitting part is greater than the width of the top of the light shielding part. The support plate is arranged in the light shielding part and adjacent to the upper opening. The light source plate is arranged on one side of the support plate and faces the light emitting part. Since the width of the bottom of the light emitting part is greater than the width of the top of the light shielding part, most of the light emitted by the light source plate can pass through the light emitting part without being blocked by the light shielding part. The above optical structure design can effectively reduce the light loss of the light source plate, greatly improving the light efficiency of the linear lighting device.

[0065] In addition, according to the embodiment of the present application, the light source plate and the power module and other electronic components of the linear lighting device are arranged in the tubular lampshade thereof. The above-mentioned tubular lampshade can be made of plastic, so that the tubular lampshade is a full-plastic structure. The above-mentioned full-plastic structure can effectively prevent the generation of reverse voltage, so that the safety of the linear lighting device can be greatly improved.

[0066] In addition, according to the embodiment of the present application, the power module of the linear lighting device is arranged in the tubular lampshade thereof, and the power module is not arranged in the power box, but can be only covered by a plastic film. The above-mentioned built-in power module design not only can effectively prevent the generation of reverse voltage to improve safety, but also can greatly simplify the structure of the linear lighting device.

[0067] Furthermore, according to the embodiment of the present application, the linear lighting device further comprises a base and a plurality of clamps, and the tubular lampshade is arranged on the base. The base has a central groove, and the tubular lampshade is arranged on the central groove and seals the central groove, so that the light shielding part is located in the central groove, and the light emitting part is exposed to the central groove. Each clamp is U-shaped and comprises a bottom plate, two side walls and two protruding parts. The bottom plate is fixed to the bottom of the central groove, and the two protruding parts are arranged on the two side walls respectively. The light shielding part has two grooves arranged on the two sides of the light shielding part respectively, and the two protruding parts are embedded in the two grooves respectively, so that the clamp and the light shielding part are fixed to each other. Through the above-mentioned one-side locking structure, the tubular lampshade does not need to be arranged with a locking structure and can be fixed to the base, so that the structure of the tubular lampshade is more simplified. In addition, the plurality of clamps are not exposed to the central groove, so that the structure of the base can also be more simplified. The above-mentioned structure design makes the linear lighting device more convenient to transport, and is not easy to be damaged in the transportation process.

[0068] Furthermore, according to the embodiment of the present application, the light source plate of the linear lighting device is arranged on the support plate, the support plate can be made of high-thermal-conductivity material (various metals, such as copper, iron, aluminum, stainless steel, etc.), and is arranged in the tubular lampshade. Therefore, the support plate not only can provide heat dissipation effect, but also can achieve supporting effect, so as to improve the structural strength of the tubular lampshade. In addition, the light source plate also has reflective paint, so as to improve light efficiency. In this way, the service life of the linear lighting device can be effectively improved, and the light efficiency can be further improved, so as to meet the requirements in actual application. As can be seen from the above, the high-light-efficiency linear lighting device according to the embodiment of the present application can indeed achieve excellent technical effect.

[0069] Please refer to Figure 10 , Figure 11 and Figure 12 , and please refer to Figures 1 to 9 . Figure 10 is a first schematic view of the installation procedure of the high-light-efficiency linear lighting device of the second embodiment of the present application. Figure 11 is a first schematic view of the installation procedure of the high-light-efficiency linear lighting device of the second embodiment of the present application. Figure 10 is a first partial enlarged view of the K1 region of Figure 12 is a second partial enlarged view of the K1 region of Figure 10 . As shown in Figure 10 , the bottom of the central groove Cs of the base 16 also has a mounting hole Gs, and the mounting hole Gs can be in the shape of a keyhole.

[0070] As shown in Figure 11As shown, the user can first fix the fastener FX (such as a screw, a nail or other similar component) on the ceiling. Then, the user can place the base 16 on the ceiling and align the mounting hole Gs with the fastener FX, so that the head of the fastener FX enters one end of the mounting hole Gs. Then, the user can push the base 16 so that the base 16 moves towards the other end of the mounting hole Gs (as shown by the arrow A1).

[0071] Then, the base 16 moves towards the other end of the mounting hole Gs, so that the head of the fastener FX enters the other end of the mounting hole Gs, as shown. Figure 12 In this way, the user can fix the base 16 on the ceiling by the fastener 16, and then fix the two ends of the base 16 on the ceiling by other fasteners FX, respectively.

[0072] Without the design of the mounting hole Gs, the user needs to fix one end of the base 16 on the ceiling, but the other end of the base 16 needs to be held by another installer by hand, so that the installation is extremely inconvenient. Through the design of the mounting hole Gs, the user can temporarily fix the base 16 on the ceiling first, and then fix the two ends of the base 16, respectively, so that the installation procedure is more convenient, and manpower can be saved.

[0073] Of course, the present embodiment is only used for illustration and is not intended to limit the scope of the present application, and equivalent modifications or changes made according to the high light efficiency linear lighting device of the present embodiment should still be included in the patent scope of the present application.

[0074] Please refer to Figure 13 , Figure 14 , Figure 15 and Figure 16 , and please refer to Figures 1 to 12 . Figure 13 is a second schematic view of the installation procedure of the high light efficiency linear lighting device of the second embodiment of the present application. Figure 14 is a first partial enlarged view of the K2 region of Figure 13 . Figure 15 is a second partial enlarged view of the K2 region of Figure 13 . Figure 16 is a third partial enlarged view of the K2 region of Figure 13 . As shown, Figure 13 after the base 16 is fixed on the ceiling, the user can temporarily hang the tubular lampshade 11 on the base 16 by the two safety ropes 18 described above to perform wiring work.

[0075] As shown, Figure 14As shown, each safety rope 18 comprises a rope body 181 and a ball head 182 connected to one end of the rope body 181. Each end cap 15 has a fixing structure, which comprises a post 151 and a fixing hook 152. One end of the fixing hook 152 is fixed to the bottom of the end cap 15, and the other end of the fixing hook 152 is spaced apart from the bottom of the end cap 15 to form an entrance Es. The post 151 is fixed to the bottom of the end cap 15 and located at one side of the entrance Es.

[0076] The user can move the ball head 182 towards the space between the post 151 and the fixing hook 152 (as shown by arrow A2 in the figure).

[0077] As shown, the user moves the ball head 182 towards the space between the post 151 and the fixing hook 152, so that one end of the rope body 181 enters the space between the post 151 and the fixing hook 152. Then, the user can pull the rope body 181 towards the entrance Es, so that the rope body 181 enters the central hole of the fixing hook 152 through the entrance Es. Figure 15 As shown, after the rope body 181 enters the central hole of the fixing hook 152 through the entrance Es, the rope body 181 can pass through the central hole of the fixing hook 152. In this way, the ball head 182 can be limited by both the post 151 and the fixing hook 152. In this way, the ball head 182 can be fixed to the fixing structure, and the other end of the rope body 181 is fixed to one of the two ends of the base 16.

[0078] Figure 16 Through the design of the fixing structure, the two end caps 15 can be stably and quickly connected to the two ends of the base 16 through the two safety ropes 18. The user can temporarily hang the tubular lampshade 11 on the base 16 through the two safety ropes 18 to perform wiring work. Therefore, the installation procedure of the linear lighting device 1 can be greatly simplified to reduce labor costs.

[0079] In addition, since the fixing structure is arranged on the two end caps 15 instead of the tubular lampshade 11, the structure of the tubular lampshade 11 can be further simplified.

[0080] When the installation procedure is completed, the two safety ropes 18 can also prevent the tubular lampshade 11 from falling. Therefore, the safety of the linear lighting device 1 can be further improved.

[0081] Of course, the present embodiment is only used for illustration and does not limit the scope of the present application. Equivalent modifications or changes made to the high light efficiency linear lighting device according to the present embodiment should still be included in the patent scope of the present application.

[0082] Of course, the present embodiment is only used for illustration and does not limit the scope of the present application. Equivalent modifications or changes made to the high light efficiency linear lighting device according to the present embodiment should still be included in the patent scope of the present application.

[0083] Please refer to Figure 17 and Figure 18 . Figure 17 ​A perspective view of a high-efficiency linear lighting device according to a third embodiment of the present application. Figure 18 A perspective view of a high-efficiency linear lighting device according to a fourth embodiment of the present application. As shown, the tubular lampshade 11 can be combined with different bases, such as Figure 17 the base 16' shown in FIG. 16, and Figure 18 the base 16'' shown in FIG. 17, so that the linear lighting device 1 can have different appearances and functions.

[0084] Therefore, the tubular lampshade 11 can be sold as a stand-alone product, which is more flexible in use. Meanwhile, the above-mentioned structural design can effectively reduce inventory, thereby reducing costs.

[0085] Of course, the present embodiment is only used for illustration and is not intended to limit the scope of the present application. Equivalent modifications or changes made to the high-efficiency linear lighting device according to the present embodiment should still be included in the patent scope of the present application.

[0086] In summary, according to the embodiments of the present application, the linear lighting device includes a tubular lampshade, a support plate, and a light source plate. The tubular lampshade has a light-emitting portion and a light-blocking portion. The light-emitting surface of the light-emitting portion is a curved surface. The bottom of the light-emitting portion has a lower opening, and the top of the light-blocking portion has an upper opening. The bottom of the light-emitting portion is connected to the top of the light-blocking portion, and the width of the bottom of the light-emitting portion is greater than the width of the top of the light-blocking portion. The support plate is disposed within the light-blocking portion and adjacent to the upper opening. The light source plate is disposed on one side of the support plate and faces the light-emitting portion. Since the width of the bottom of the light-emitting portion is greater than the width of the top of the light-blocking portion, most of the light emitted by the light source plate can pass through the light-emitting portion without being blocked by the light-blocking portion. The above-mentioned optical structural design can effectively reduce the light loss of the light source plate, thereby greatly improving the light efficiency of the linear lighting device.

[0087] According to the embodiments of the present application, the electronic components, such as the light source plate and the power module, of the linear lighting device are disposed within the tubular lampshade thereof. The above-mentioned tubular lampshade can be made of plastic, so that the tubular lampshade is a full-plastic structure. The above-mentioned full-plastic structure can effectively prevent the generation of reverse voltage, thereby greatly improving the safety of the linear lighting device.

[0088] In addition, according to the embodiments of the present application, the power module of the linear lighting device is disposed within the tubular lampshade thereof, and the power module is not disposed within a power box, but can be only covered by a plastic film. The above-mentioned built-in power module design not only can effectively prevent the generation of reverse voltage to improve safety, but also can greatly simplify the structure of the linear lighting device.

[0089] Furthermore, according to embodiments of the present application, the linear lighting device further comprises a base and a plurality of clamps, and the tubular lampshade is disposed on the base. The base has a central recess, and the tubular lampshade is disposed on and encloses the central recess, so that the light-shielding portion is located in the central recess and the light-emitting portion is exposed from the central recess. Each of the clamps is U-shaped and comprises a bottom plate, two side walls and two protruding portions. The bottom plate is fixed to the bottom of the central recess, and the two protruding portions are respectively disposed on the two side walls. The light-shielding portion has two recesses respectively disposed on two sides of the light-shielding portion, and the two protruding portions are respectively embedded in the two recesses, so that the clamps and the light-shielding portion are fixed to each other. Through the above-mentioned one-side locking structure, the tubular lampshade can be fixed to the base without the need to set a locking structure, so that the structure of the tubular lampshade is simplified. In addition, the plurality of clamps are not exposed to the central recess, so that the structure of the base can also be simplified. The above-mentioned structure design makes the linear lighting device more convenient to transport and less likely to be damaged during transportation.

[0090] In addition, according to embodiments of the present application, the light source plate of the linear lighting device is disposed on the support plate, and the support plate can be made of a high-thermal-conductivity material (various metals, such as copper, iron, aluminum, stainless steel, etc.) and is disposed in the tubular lampshade. Therefore, the support plate not only can provide a heat dissipation effect, but also can achieve a supporting effect to improve the structural strength of the tubular lampshade. In addition, the light source plate also has a reflective coating to improve the light efficiency. In this way, the service life of the linear lighting device can be effectively improved, and the light efficiency can be further improved to meet the needs of actual applications.

[0091] Furthermore, according to embodiments of the present application, the linear lighting device further comprises two end covers and two safety ropes. The two end covers are respectively disposed on two ends of the tubular lampshade and are respectively connected to two ends of the base through the two safety ropes. Each of the end covers has a fixing structure. Each of the safety ropes comprises a rope body and a ball head connected to one end of the rope body. The ball head is fixed to the fixing structure, and the other end of the rope body is fixed to one of the two ends of the base. The fixing structure comprises a column and a fixing hook. One end of the fixing hook is fixed to the bottom of the end cover, and the other end of the fixing hook has a spacing from the bottom of the end cover to form an entrance. The column is fixed to the bottom of the end cover and located on one side of the entrance. The rope body passes through the central hole of the fixing hook so that the ball head is limited by the column and the fixing hook. Through the design of the above-mentioned fixing structure, the two end covers can be stably and quickly connected to the two ends of the base through the two safety ropes to prevent the tubular lampshade from falling. In addition, the user can temporarily hang the tubular lampshade on the base through the two safety ropes to perform wiring work. Therefore, the installation procedure of the linear lighting device can be greatly simplified to reduce labor costs. At the same time, the safety of the linear lighting device can be further improved.

[0092] It should be noted that, although the above-mentioned embodiments have been described herein, the patent protection scope of the present application is not limited thereby. Therefore, based on the innovative idea of the present application, the changes and modifications made to the embodiments described herein, or the equivalent structures or equivalent process transformations made using the content of the present application specification and drawings, directly or indirectly apply the above technical solutions to other related technical fields, are all included in the protection scope of the present application patent.

Claims

1. A high-light-efficiency linear lighting device, characterized in that: include: A tubular lampshade having a light-emitting portion and a light-shielding portion, wherein the light-emitting surface of the light-emitting portion is a curved surface, the bottom of the light-emitting portion has a lower opening, the top of the light-shielding portion has an upper opening, the bottom of the light-emitting portion is connected to the top of the light-shielding portion, and the width of the bottom of the light-emitting portion is greater than the width of the top of the light-shielding portion; a support plate, disposed in the light shielding portion and adjacent to the upper opening; a light source plate, disposed on one side of the support plate and facing the light-emitting portion; A base having a central groove, wherein the tubular lampshade is disposed on and closes the central groove; A clip is U-shaped and includes a bottom plate, two side walls, and two protrusions, wherein the bottom plate is fixed to the bottom of the central groove, the two protrusions are respectively provided on the two side walls, the light shielding portion has two grooves respectively provided on both sides of the light shielding portion, and the two protrusions are respectively embedded in the two grooves, so that the clip and the light shielding portion are fixed to each other and are not exposed in the central groove; Two end covers, respectively provided at the two ends of the tubular lampshade, each end cover having a fixing structure, the fixing structure comprising a column and a fixing hook, one end of the fixing hook being fixed to the bottom of the end cover, the other end of the fixing hook being spaced apart from the bottom of the end cover to form an entrance, the column being fixed to the bottom of the end cover and located on one side of the entrance; as well as Two safety ropes, the two end covers are respectively connected to the two ends of the base through the two safety ropes, each of the safety ropes includes a rope body and a ball head connected to one end of the rope body, the ball head is fixed to the fixed structure, and the other end of the rope body is fixed to one of the two ends of the base, the rope body passes through the central hole of the fixed hook so that the ball head is limited by the column and the fixed hook at the same time.

2. The high light efficiency linear lighting device according to claim 1, wherein: The tubular lampshade is made of plastic.

3. The high light efficiency linear lighting device according to claim 1, wherein: It also includes a power module, which is arranged on the other side of the support plate and located in the light shielding portion. The power module is electrically connected to the light source board.

4. The high light efficiency linear lighting device according to claim 1, wherein: The light shielding portion is located in the central groove, and the light emitting portion is exposed outside the central groove.

5. The high light efficiency linear lighting device according to claim 4, characterized in that: The bottom of the central groove is further provided with a mounting hole, which is in the shape of a keyhole.

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