Linear lighting device with interference prevention structure

Abstract

To provide a linear lighting device equipped with an interference prevention structure. [Solution] The linear lighting device includes a tubular globe, a support plate, a light source substrate, a base, and fixing bolts. The tubular globe has a light-emitting section 111 and a light-shielding section 112. The light-emitting section includes a light-emitting surface and two flat plates. The two flat plates are installed on both sides of the light-emitting surface. The light-emitting surface is curved. A lower opening is formed between the two flat plates, the upper part of the light-shielding section has an upper opening, and the bottom part of the light-shielding section has a counterbore hole SH. The light-emitting section is installed in the light-shielding section, and the width of the lower opening is greater than the width of the upper opening. The support plate is installed in the light-shielding section and is adjacent to the upper opening, and the counterbore hole extends toward the support plate. The light source substrate is installed on one side of the support plate and faces the light-emitting section. The base has fixing holes corresponding to the counterbore hole, and the tubular globe is installed on the base. The fixing bolts are fixed to the counterbore hole by passing through the fixing hole and the counterbore hole.

Description

Technical Field

[0001] The present invention relates to a lighting device, particularly a linear lighting device provided with an anti-interference structure.

Background Art

[0002] The reverse Fuji type (mountain type) lighting device has a unique shape and lighting characteristics, and its main feature is the design of a triangular base or an inverted conical base. The above design is advantageous for the uniform distribution of light rays and can efficiently utilize space, so it is widely applied to various buildings.

[0003] However, the conventional reverse Fuji type lighting device still has many drawbacks to be improved. For example, in the optical structure of the conventional reverse Fuji type lighting device, part of the light generated by the light source substrate is lost, which greatly reduces the light efficiency of the lighting device.

[0004] Also, when installing the conventional reverse Fuji type lighting device, the internal members are easily interfered by the fixing bolts, so the user needs to appropriately cut the fixing bolts, which is extremely inconvenient during installation, requires relatively more labor, and increases the labor cost.

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a linear lighting device provided with an anti-interference structure.

Means for Solving the Problems

[0006] A linear lighting device is provided, based on one embodiment of the present invention, which includes an interference prevention structure comprising a tubular globe, a support plate, a light source substrate, a base, and fixing bolts. The tubular globe has a light-emitting section and a light-shielding section. The light-emitting section includes a light-emitting surface and two flat plates. The two flat plates are installed on both sides of the light-emitting surface. The light-emitting surface is curved. A lower opening is formed between the two flat plates, the upper part of the light-shielding section has an upper opening, and the bottom part of the light-shielding section has a counterbore. The light-emitting section is installed in the light-shielding section, and the width of the lower opening is greater than the width of the upper opening. The support plate is installed in the light-shielding section and is adjacent to the upper opening, and the counterbore extends toward the support plate. The light source substrate is installed on one side of the support plate and faces the light-emitting section. The base has fixing holes corresponding to the counterbore, and the tubular globe is installed on the base. The fixing bolts are fixed to the counterbore through the fixing holes and the counterbore. [Effects of the Invention]

[0007] Based on the above, a linear lighting device equipped with an interference prevention structure according to an embodiment of the present invention can have the following advantages. According to an embodiment of the present invention, the linear lighting device has a counterbore hole fixing structure. The fixing bolt enters the opening of the corresponding counterbore hole through the corresponding fixing hole. Since the other end of the counterbore hole is closed, the fixing bolt does not come into contact with the internal components of the light shield (power module and other components). Therefore, the internal components of the light shield are not affected by the fixing bolt, and the user does not need to cut the fixing bolt. Therefore, the installation of the linear lighting device can be made more convenient, and labor costs can be effectively reduced. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention. [Figure 2] A first cross-sectional view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention (without support plate, light source substrate, and power supply module). [Figure 3]This is a second cross-sectional view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention (with support plate, light source substrate and power supply module). [Figure 4] This is a third cross-sectional view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention. [Figure 5] This is a perspective view of a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. [Figure 6] This is an exploded view of a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. [Figure 7] This is a side view of the base of a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. [Figure 8] This is an explanatory diagram of the combination of a base and a tubular globe of a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. [Figure 9] This is an explanatory diagram of the electrical connection lines of a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. [Figure 10] This is an explanatory diagram of the installation process for a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. [Figure 11] This is a first partial enlargement view of the K1 region in Figure 10. [Figure 12] This is a second enlarged view of the K1 region in Figure 10. [Figure 13] This is a perspective view of a linear lighting device equipped with an interference prevention structure according to a third embodiment of the present invention. [Figure 14] This is an explanatory diagram of the installation process for a linear lighting device equipped with an interference prevention structure according to a third embodiment of the present invention. [Figure 15] This is a perspective view of a linear lighting device equipped with an interference prevention structure according to a fourth embodiment of the present invention. [Modes for carrying out the invention]

[0009] The following embodiments describe the detailed features and advantages of the present invention, which are sufficient to enable those skilled in the art to understand and implement the technical aspects of the invention, and which, through the disclosures, claims, and drawings herein, will be readily understood by those skilled in the art.

[0010] The following describes embodiments of a linear lighting device equipped with the interference prevention structure of the present invention, with reference to the relevant drawings. For clarity and ease of illustration, the dimensions and proportions of the components in the drawings may be exaggerated or reduced. In the following description and / or claims, when a component is described as “connected” or “joined” to another component, it may be a direct connection or coupling to that other component, or there may be an intermediary component. When a component is described as “directly connected” or “directly joined” to another component, there is no intermediary component, and other terms used to describe relationships between components or layers should be interpreted similarly. For ease of understanding, the same components in the following embodiments are denoted by the same reference numerals.

[0011] Refer to Figures 1, 2, and 3. Figure 1 is a perspective view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention. Figure 2 is a first cross-sectional view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention (without support plate, light source substrate, and power supply module). Figure 3 is a second cross-sectional view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention (with support plate, light source substrate, and power supply module). Figure 4 is a third cross-sectional view of a linear lighting device equipped with an interference prevention structure according to the first embodiment of the present invention. As shown in the figures, the linear lighting device 1 comprises a tubular globe 11, a light source substrate 12, a support plate 13, a power supply module 14, and two end covers 15.

[0012] The tubular globe 11 has a light-emitting section 111 and a light-shielding section 112. The two end caps 15 are installed at both ends of the tubular globe 11, respectively. In this embodiment, the tubular globe 11 is an all-plastic structure made of plastic (this material may be various conventional plastic materials, such as PMMA or PC, but is not limited to these). The light-emitting section 111 includes a light-emitting surface LS and a flat plate FP. The light-emitting surface LS is a curved surface. The flat plate FP has a lower opening PH1, and the bottom of the light-emitting section 111 has an upper opening PH2. The light-shielding section 112 has two grooves Rs installed on both sides thereof. The light-emitting section 111 is installed in the light-shielding section 112, and the flat plate FP protrudes from both sides of the light-shielding section 112, making the cross-section of the globe 11 mushroom-shaped. The width of the lower opening PH1 is greater than the width of the upper opening PH2. The width of the flat plate FP is W1. The width of the lower opening PH1 is equal to the width of the upper opening PH2 minus the total width of the two flat plates FP (W1 × 2). Furthermore, the all-plastic structure described above can prevent the generation of reverse voltage, significantly improving the safety of the linear lighting device 1. The light-emitting section LS has a central section MP, two side sections LP, and two buffer sections BP. The central section MP is installed between the two buffer sections BP. One side section LP is installed on one side of one buffer section BP. The other side section LP is installed on one side of the other buffer section BP. The curvature of the side section LP is greater than the curvature of the central section MP, and the curvature of the central section MP is greater than the curvature of the buffer section BP. The sum of the curvature of the central section MP and the curvature of the two buffer sections BP is less than or equal to the curvature of either one of the side sections LP.

[0013] The support plate 13 is installed within the light-shielding portion 112 and adjacent to the upper opening PH2. The cross-section of the support plate 13 is U-shaped, and both 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 position regulating plate V2. The position regulating plate V2 is installed above the L-shaped hook portion V1. Two L-shaped hook portions V1 are respectively embedded on both sides of the support plate 13, and the two position regulating plates V2 provide a position regulating function to prevent the support plate 13 from detaching from the two L-shaped hook portions V1. The support plate 13 may be formed from a material with high thermal conductivity. This material may be various metals such as copper, iron, aluminum, stainless steel, etc. Therefore, the support plate 13 can not only provide a heat dissipation effect, but also further achieve a supporting function and enhance the structural strength of the tubular globe 11.

[0014] The light source substrate 12 is installed on one side of the support plate 13 and faces the light-emitting portion 111. The light source substrate 12 may include a circuit board 121 and a plurality of light sources 122, and the plurality of light sources 122 are installed on the circuit board 121. In this embodiment, the plurality of light sources 122 described above may be light-emitting diodes (LEDs). In another embodiment, the light source substrate 12 may be replaced with other light-emitting units (such as fluorescent lamps, light bulbs, etc.). The light source substrate 12 further has a light-reflecting paint on it, which can provide a light-reflecting effect and improve the light efficiency.

[0015] The power module 14 is installed on the other side of the support plate 13 and is located within the light-shielding portion 112. The power module 14 is electrically connected to the light source substrate 12. The power module 14 can be directly installed in the light-shielding portion 112 without the need for a separate power case. Also, the power module 14 may only be covered with a plastic film. In one embodiment, the power module 14 is a light-emitting diode driver. In another embodiment, the power module 14 may be a driver for other conventional light sources. The above design of the built-in power module 14 not only improves the safety of the linear lighting device 1, but can also greatly simplify the structure of the linear lighting device 1.

[0016] As described above, since the width L1 of the lower opening PH1 is larger than the width L2 of the upper opening PH2, most of the light rays emitted by the light source plate 12 can pass through the light emitting portion 111 and will not be blocked by the light shielding portion 112. Through the above optical structure design, the light loss of the light source substrate 12 can be effectively reduced, and the light efficiency of the linear lighting device 1 can be significantly improved. Also, the design of the curvature of the light emitting portion LS optimizes the above optical structure design, further making the emitted light rays uniform, and the light rays are

[0017] Referring to FIGS. 5, 6, 7, 8 and 9, and simultaneously referring to FIGS. 1 to 4. FIG. 5 is a perspective view of a linear lighting device provided with an interference prevention structure according to the second embodiment of the present invention. FIG. 6 is an exploded view of a linear lighting device provided with an interference prevention structure according to the second embodiment of the present invention. FIG. 7 is a side view of the base of a linear lighting device provided with an interference prevention structure according to the second embodiment of the present invention. FIG. 8 is an explanatory view of the combination of the base and the tubular globe of a linear lighting device provided with an interference prevention structure according to the second embodiment of the present invention. FIG. 9 is an explanatory view of the electrical connection wire of a linear lighting device provided with an interference prevention structure according to the second embodiment of the present invention. As shown in the figures, the linear lighting device 1 includes a tubular globe 11, a light source substrate 12, a support plate 13, a power module 14, and two end caps 15.

[0018] The above components are the same as those in the above embodiment. The difference from the foregoing embodiment is that in this embodiment, the linear lighting device 1 further includes a base 16, two clips 17, and two safety ropes 18.

[0019] The base 16 has a central groove Cs. The tubular globe 11 is installed in the central groove Cs, closes the central groove Cs, positions the light shielding portion 112 within the central groove Cs, and exposes the light emitting portion 111 from the central groove Cs. Also, both ends of the base 16 may have knockdown holes Bs. When connecting a plurality of linear lighting devices 1 in series, the covers of the plurality of knockdown holes Bs can be removed. Then, the electrical connection wire can pass through the knockdown holes Bs to electrically connect the plurality of linear lighting devices 1.

[0020] The two clips 17 described above may be made of a metal material such as copper, iron, aluminum, or stainless steel. Each clip 17 is U-shaped and includes a base plate 171, two side walls 172, and two protrusions 173. The base plate 171 is fixed to the bottom of the central groove Cs, and the two protrusions 173 are respectively installed on the two side walls 172. Each clip 17 is not exposed to the central groove Cs. As described above, the light-shielding portion 112 has two grooves Rs, each installed on either side of the light-shielding portion 112, and the two protrusions 173 are respectively inserted into the two grooves Rs, fixing the clips 17 and the light-shielding portion 112 together. In this way, the tubular globe 11 is fixed to the base 16 via the two clips 17. The number of clips 17 can be adjusted according to actual requirements. In another embodiment, the linear illumination device 1 may include only one clip 17 or three or more clips 17. Due to the aforementioned one-sided locking structure, the tubular globe 11 can be fixed to the base 16 without the need to install a fixing structure, thereby simplifying the structure of the tubular globe 11. Furthermore, the multiple clips 17 are not exposed in the central groove Cs, further simplifying the structure of the base 16. With the above structural design, the linear lighting device 1 becomes more convenient to transport and less susceptible to damage during transport.

[0021] The two end covers 15 are provided at both ends of the tubular globe 11 and are connected to both ends of the base 16 via the two safety ropes 18. The two end covers 15 provide waterproofing and dustproofing, improving the safety and service life of the linear lighting device 1.

[0022] The linear lighting device 1 further includes an electrical connection line 19 and a connection terminal 20. The power module 14 is connected to the electrical connection line 19, which passes through a connection hole and then connects to the connection terminal 20. The connection hole is located near one end cover 15. A sealing ring SR (such as a rubber ring) can be installed in this connection hole to achieve waterproof and dustproof effects. The connection terminal 20 can be installed on the rear view of the tubular globe 11. In this embodiment, the electrical connection line 19 can be fixed to the rear of the tubular globe 11 by tape TP or other similar methods, but is not limited thereto.

[0023] As described above, since the width L1 of the lower aperture PH1 is larger than the width L2 of the upper aperture PH2, most of the light rays emitted by the light source plate 12 can pass through the light-emitting section 111 and are not blocked by the light-shielding section 112. The above optical structure design effectively reduces the light loss of the light source substrate 12 and significantly improves the light efficiency of the linear illumination device 1.

[0024] Furthermore, electronic components such as the light source substrate 12 and power module 14 of the linear lighting device 1 are installed inside the tubular globe 11. The tubular globe 11 may be made of plastic, making the tubular globe 11 an all-plastic structure. This all-plastic structure effectively prevents the generation of reverse voltage, significantly improving the safety of the linear lighting device 1.

[0025] Furthermore, the power module 14 of the linear lighting device 1 is installed inside the tubular globe 11 and is not installed inside the power supply case; it may simply be covered with a plastic film. The above-described built-in power module design not only effectively prevents the generation of reverse voltage and improves safety, but also significantly simplifies the structure of the linear lighting device 1.

[0026] Furthermore, the aforementioned one-sided fixing structure eliminates the need for a separate fixing structure for the tubular globe 11, allowing it to be fixed to the base 16 and simplifying the structure of the tubular globe 11. In addition, the multiple clips 17 are not exposed in the central groove Cs, further simplifying the structure of the base 16. This structural design makes the linear lighting device 1 more convenient to transport and less susceptible to damage during transport.

[0027] Furthermore, the light source substrate 12 of the linear lighting device 1 is mounted on its support plate 13. The support plate 13 may be made of a highly thermally conductive material (various metals such as copper, iron, aluminum, and stainless steel) and is installed inside the tubular globe 11. Therefore, the support plate 13 not only provides a heat dissipation effect but also achieves a support function, thereby increasing the structural strength of the tubular globe 11. In addition, the light source substrate 12 may have a light-reflective coating to further improve light efficiency. In this way, the service life of the linear lighting device 1 can be effectively extended, light efficiency can be further improved, and the requirements of actual applications can be met.

[0028] Thus, the linear lighting device 1 is suitable for application to inverted Fuji-type (mountain-type) lighting devices and achieves high performance. The linear lighting device 1 can also be applied to various other conventional lighting devices.

[0029] Refer to Figures 10, 11, and 12, and also to Figures 1 to 9. Figure 10 is an explanatory diagram of the installation process of a linear lighting device equipped with an interference prevention structure according to a second embodiment of the present invention. Figure 11 is a first enlarged view of the K1 region in Figure 10. Figure 12 is a second enlarged view of the K1 region in Figure 10. As shown in Figure 10, the bottom of the central groove Cs of the base 16 further has mounting holes Gs, and the mounting holes Gs may be in the shape of keyholes.

[0030] As shown in Figure 11, the user can first fix the fixing member FX (screw, nail, or other similar member) to the ceiling. Then, the user can place the base 16 on the ceiling, align the mounting holes Gs with the fixing member FX, and insert the head of the fixing member into one end of the mounting holes Gs. After that, the user can push the base 16 and move it toward the other end of the mounting holes Gs (arrow A1 in the figure).

[0031] As shown in Figure 12, the base 16 then moves toward the other end of the mounting hole Gs, causing the head of the fixing member FX to enter the other end of the mounting hole Gs. In this way, the user can fix the base 16 to the ceiling via the fixing member 16 and fix both ends of the base 16 to the ceiling via the other fixing members FX.

[0032] Without the design of mounting holes Gs, the user would first need to fix one end of the base 16 to the ceiling, while the other end of the base 16 would need to be grasped by another installer, making installation extremely inconvenient. The design of mounting holes Gs allows the user to temporarily fix the base 16 to the ceiling and then fix both ends of the base 16, thus making the installation process more convenient and saving effort.

[0033] Refer to Figures 13 and 14, and simultaneously to Figures 1 to 12. Figure 13 is a perspective view of a linear lighting device equipped with an interference prevention structure according to a third embodiment of the present invention. Figure 14 is an explanatory diagram of the installation process of a linear lighting device equipped with an interference prevention structure according to a third embodiment of the present invention. As shown in Figure 13, the bottom of the light-shielding portion 112 has four counterbore holes SH. The number of counterbore holes SH is merely an example and can be changed as needed. One end of each counterbore hole SH is open, and the other end is closed. The other end of each counterbore hole SH extends toward the support plate 13 (see Figure 3). In this embodiment, the counterbore holes SH are circular, and the four counterbore holes SH are divided into two symmetrical sets. One set (two counterbore holes SH) is located at one end of the bottom of the light-shielding portion 112, and the other set (also two counterbore holes SH) is located at the other end of the bottom of the light-shielding portion 112. In another embodiment, the counterbore SH may be elliptical, rectangular, rod-shaped, or of other shape. The shape of the counterbore SH can be modified as needed.

[0034] As shown in Figure 14, the base 16 has four fixing holes LH, and the four counterbore holes SH each correspond to one of the four fixing holes LH. The number of fixing holes LH is just an example and can be changed as needed. The linear lighting device 1 can be fixed to the ceiling panel CL via four fixing bolts SF. Each fixing bolt SF enters the opening of the corresponding counterbore hole SH through the corresponding fixing hole LH and is fixed within the counterbore hole SH. In this embodiment, the counterbore hole SH is a sleeve tube, one end of which is open and the other end of which is closed. The inner diameter of the sleeve tube gradually decreases from one end (open end) to the other end (closed end). In this way, when the fixing bolt SF enters the other end of the counterbore hole SH, a restraining fit effect can be generated. Because the other end of the counterbore hole SH is closed, the fixing bolt SF does not come into contact with the internal components of the light shielding section 112 (power module 14 and other components). Therefore, the internal components of the light-shielding section 112 are not affected by the fixing bolt SF, and the user does not need to cut the fixing bolt SF. The width of the opening of the counterbore hole SH may be 1.5 to 3 times the outer diameter of the fixing bolt SF. For example, the width of the opening of the counterbore hole SH may be 1.5 or 2 times the outer diameter of the fixing bolt SF. In this way, the fixing bolt SF can easily enter the opening of the counterbore hole SH.

[0035] Figure 15 is a perspective view of a linear lighting device equipped with an interference prevention structure according to a fourth embodiment of the present invention, with reference to Figures 1 to 12. As shown in the figure, in this embodiment, the counterbore SH' is elliptical and can accommodate multiple fixing holes LH simultaneously and multiple fixing bolts SF. Similarly, the width of the opening of the counterbore SH may be 1.5 to 3 times the outer diameter of the fixing bolt SF.

[0036] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the linear illumination device with the interference prevention structure of this embodiment should still be within the scope of protection of the present invention.

[0037] In summary, according to embodiments of the present invention, the linear lighting device 1 has a counterbore fixing structure. The fixing bolt SF enters the opening of the corresponding counterbore hole SH through the corresponding fixing hole LH. Since the other end of the counterbore hole SH is closed, the fixing bolt SF does not come into contact with the internal components of the light shielding section 112 (power module 14 and other components). Therefore, the internal components of the light shielding section 112 are not affected by the fixing bolt SF, and the user does not need to cut the fixing bolt SF. Thus, the installation of the linear lighting device 1 is made more convenient, and labor costs can be effectively reduced.

[0038] While the embodiments described herein are explained, it should be noted that this does not limit the scope of the claims of the present invention. Therefore, any changes and modifications to the embodiments described herein, or substitution of equivalent structures or processes using the contents of the specification and drawings of the present invention, or direct or indirect application of the above-described technology to other related technical fields, based on the innovative concept of the present invention, are all included within the scope of the claims of the present invention. [Explanation of Symbols]

[0039] 1. Linear lighting device 11 Tubular Globe 111 Light-emitting part 112 Light-shielding part 12 Light source substrate 121 Circuit board 122 Light source 13 Support plate 14 Power Modules 15 End cover 16 Bass 17 clips 171 Bottom plate 172 Side wall 173 Protrusion 18 Safety rope 19. Electrical connection wires 20 connection terminals V1 L-shaped hook section V2 position regulation plate TP Tape SR Seal Ring FX Fixing Components SF Fixing Bolt LS luminescent surface MP center part LP side part BP buffer part FP flat plate CL ceiling board Cs central groove Rs Groove Bs Knockdown Hole Gs mounting holes Es entrance PH1 lower opening PH2 upper opening LH fixing hole SH counterbore hole SH' Counterbore K1 area K2 area L1 Width of the lower opening L2 Width of upper opening W1 Width of the flat plate A1 Arrow

Claims

1. A tubular globe having a light-emitting part and a light-shielding part, wherein the light-emitting part includes a light-emitting surface and two flat plates, the two flat plates are installed on both sides of the light-emitting surface, the light-emitting surface is curved, a lower opening is formed between the two flat plates, the upper part of the light-shielding part has an upper opening, the bottom of the light-shielding part has a counterbore hole, the light-emitting part is installed in the light-shielding part, and the width of the lower opening is greater than the width of the upper opening, A support plate is installed within the light-shielding section and is adjacent to the upper opening, A light source substrate is installed on one side of the support plate and facing the light-emitting part, A base having a fixing hole corresponding to the aforementioned counterbore hole, A fixing bolt that is fixed to the counterbore hole passes through the aforementioned fixing hole and the aforementioned counterbore hole, Includes, The aforementioned counterbore extends in the direction toward the support plate, A linear lighting device equipped with an interference prevention structure, characterized in that the tubular globe is installed on the base.

2. The linear lighting device equipped with the interference prevention structure according to claim 1, characterized in that the counterbore hole is a sleeve tube, one end of the sleeve tube is open, and the other end of the sleeve is closed.

3. A linear lighting device equipped with an interference prevention structure according to claim 2, characterized in that the inner diameter of the sleeve tube gradually decreases from one end of the sleeve tube to the other end of the sleeve tube, and a restraining fit effect is generated when the fixing bolt is inserted into the other end of the sleeve tube.

4. The linear lighting device equipped with the interference prevention structure according to claim 1, characterized in that the counterbore hole is circular, elliptical, rectangular, or rod-shaped.

5. The linear lighting device equipped with an interference prevention structure according to claim 1, characterized in that the width of the lower opening is substantially equal to the width of the upper opening minus the sum of the widths of the two flat plates.

6. The linear lighting device with interference prevention structure according to claim 1, wherein the light-emitting portion has a central portion, two side portions, and two buffer portions, the central portion is installed between the two buffer portions, one of the side portions is installed on one side of one of the buffer portions, the other side portion is installed on one side of the other buffer portion, the curvature of the two side portions is greater than the curvature of the central portion, and the curvature of the central portion is greater than the curvature of the buffer portion.

7. A linear lighting device having an interference prevention structure according to claim 1, further comprising a power supply module, wherein the power supply module is installed on the other side of the support plate, located within the light-shielding portion, and electrically connected to the light source substrate.

8. The linear lighting device having an interference prevention structure according to claim 1, characterized in that the base has a central groove, the globe is installed in the central groove, closes the central groove, positions the light-shielding portion within the central groove, and exposes the light-shielding portion from the central groove.

9. Linear lighting device with interference prevention structure according to claim 8, further comprising a clip, the clip being U-shaped and comprising a base plate, two side walls and two protrusions, the base plate being fixed to the bottom of the central groove, the two protrusions being installed on the two side walls respectively, the light-shielding portion having two grooves installed on both sides of the light-shielding portion, the two protrusions being embedded in the two grooves respectively, and fixing the clip to the light-shielding portion.

10. A linear lighting device equipped with an interference prevention structure according to claim 8, characterized in that the bottom of the central groove has a mounting hole, and the mounting hole has the shape of a keyhole.

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