LED straight tube light

Abstract

Prevents sparks and arcs from occurring when the LED lamp is operating, improving the safety of the LED lamp. [Solution] The LED lamp of the present invention includes a lamp body (10), two bases (20), two power supply modules (30), and a light source module (40). The bases (20) are installed at both ends of the lamp body (10), and the power supply modules (30) include a power circuit board (310) and electronic components (320), with the power supply module (30) located in at least one of the two volumes formed by the lamp body (10) and the bases (20). The light source module (40) is located within the lamp body (10), and the light source module (40) includes a light board (410) and a light source (420), which is installed on the light board (410), and the light board (410) has a connection area (411) and a light-emitting area (412).

Description

[Technical Field]

[0001] The present invention belongs to the technical field of LED lighting devices, and in particular to LED tube lights. [Background technology]

[0002] LED lamps have many advantages such as long service life, small volume, and energy saving, and are gradually replacing traditional incandescent and fluorescent lamps, and are being widely used in the market.

[0003] In LED tube light products, when a flexible circuit board is used as part or the entire light strip board, there are often folding areas at both ends of the LED tube light. These folding areas resemble an "S" shape, shortening the electrical distance in this area. The electrical distance includes the distance between the flexible circuit board and the power supply circuit board, as well as the distance between the flexible circuit board and the power supply circuit board. While sparks are usually generated occasionally when using standard driving means, they are more likely to occur when using boost driving means (boost boost). In this case, the voltage output from the LED terminals is higher than the external voltage input to the LED tube light, which can cause sparks or arcs on the flexible circuit board.

[0004] Therefore, in view of the inadequacies and shortcomings of the prior art LED tube lights, it has become a challenge for those skilled in the art to design an LED lamp that can reduce the occurrence of sparks and arcs during use and improve safety. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above technical drawbacks, the present invention aims to provide an LED tube light that can prevent sparks and arcs from occurring when using an LED lamp. [Means for solving the problem]

[0006] In order to achieve the above and other related objects, a first aspect of the present application provides an LED straight tube light comprising: a lamp body having a first end and a second end opposite to each other; two bases respectively installed at the first end and the second end of the lamp body; a circuit board; electronic components and welding points respectively installed on the circuit board; a power supply module installed in a volumetric space formed by the lamp body and the bases and having a first surface and a second surface installed parallel to each other, the electronic components installed on at least the first surface and the second surface having a first area and a second area; a light board; and a light source installed on the light board, the light board being located within the lamp body, the light board having a connection area and a light-emitting area, the connection area connecting with the power supply module to form a folding area, the folding area overlapping the second area in the radial direction of the lamp body, and the second area not having the electronic components or the welding points.

[0007] Some embodiments of the first aspect of the present application are characterized in that the light source is installed in the light emitting area, and the light emitting area does not overlap with the circuit board in the radial direction of the lamp body.

[0008] According to a second aspect of the present application, there is provided an LED straight tube light comprising: a lamp body having a first end and a second end facing each other; two bases respectively installed at the first end and the second end of the lamp body; a power supply module including a circuit board and installed in a volumetric space formed by the lamp body and the bases; a light board located within the lamp body and having a connection area and a light emission area; and a light source module including a light source installed in the light emission area of ​​the light board, the connection area being connected to the power supply module to form a folding area, the folding area overlapping the second area in the radial direction of the lamp body, and a spacer installed between the folding area and the circuit board or between the folding area and the light board below.

[0009] Some examples of the second aspect of the present application are characterized in that, in the LED straight tube light described in claim 3, the connection area located in the folding area has a first bent portion and a second bent portion, the circuit board has a spacer on a surface facing the first bent portion, and the light board has a spacer on a surface facing the second bent portion.

[0010] In some embodiments of the second aspect of the present application, the spacer is a high-temperature tape.

[0011] Some embodiments of the second aspect of the present application are characterized in that the connection area located in the folding area has a first bent portion and a second bent portion, the first bent portion having a spacer on a surface adjacent to the circuit board, and the second bent portion having a spacer on a surface adjacent to the light board.

[0012] In some embodiments of the second aspect of the present application, the spacer is a white adhesive.

[0013] In some embodiments of the second aspect of the present application, the spacer is attached to the connection area of ​​the light board.

[0014] In some embodiments of the second aspect of the present application, the spacer is a coating film.

[0015] Some embodiments of the second aspect of the present application are characterized in that, in the LED straight tube light of the second aspect, the circuit board includes a first surface and a second surface that are installed in parallel, and no electronic components or welding points are installed in the part where the folding area and the second surface overlap radially of the lamp body, and the light source is installed in the light-emitting area so as not to overlap with the circuit board.

[0016] The LED straight tube light according to a third aspect of the present application is characterized in that it comprises: a lamp body having a first end and a second end opposite to each other; two bases respectively installed at the first end and the second end of the lamp body; a power supply module including a circuit board and installed in a volumetric space formed by the lamp body and the bases; a light source module including a light board and a light source installed on the light-emitting surface of the light board, the light board having a connection area and a light-emitting area, the connection area connecting with the power supply module to form a folding area, and the folding area being Z-shaped.

[0017] In some embodiments of the third aspect of the present application, the folding area is between 25 and 35 mm.

[0018] In some embodiments of the third aspect of the present application, the folding area is 30 mm.

[0019] Some embodiments of the third aspect of the present application are characterized in that there is a spacer between the folding area and the circuit board, and there is a spacer between the folding area and the light board below it.

[0020] Some embodiments of the third aspect of the present application are characterized in that the circuit board includes a first surface and a second surface that are arranged parallel to each other, no electronic components or welding points are installed in the portion where the folding area and the second surface overlap radially of the lamp body, and the light source is installed in the light-emitting area so as not to overlap with the circuit board. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a structural schematic diagram of an LED lamp according to an embodiment of the present invention. [Figure 2] 1 is a cross-sectional view of an LED lamp according to an embodiment of the present application. [Figure 3] FIG. 3 is an enlarged view of a portion A in FIG. 2. [Figure 4]1 is an exploded schematic view of an LED lamp according to an embodiment of the present application. [Figure 5] FIG. 3 is an enlarged view of a portion A in FIG. 2 according to another embodiment of the present invention. [Figure 6] FIG. 3 is an enlarged view of a portion A in FIG. 2 according to another embodiment of the present invention. [Figure 7] FIG. 3 is an enlarged view of a portion A in FIG. 2 according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] To facilitate understanding of the present application, the entire present application will be described in detail below with reference to the accompanying drawings. The drawings show preferred embodiments of the present application. However, the present application may be realized in various forms and is not limited to the following embodiments. On the other hand, the following embodiments are provided to facilitate understanding of the invention of the present application. Hereinafter, directional terms such as "first," "second," "third," "axial direction," "upper," and "lower" indicate the positional relationship of the structure and do not limit the present application. In this application, the terms "vertical," "horizontal," and "parallel" include cases where there is a deviation of ±30% from the standard definition. For example, while "vertical" usually means that the angle formed with a reference line is 90°, in this application, "vertical" includes cases where the angle is 60° to 120°.

[0023] An embodiment of the present application will be described with reference to FIGS. 1 to 3. The LED lamp includes a lamp body 10, two bases 20, a power supply module 30, and a light source module 40. The two bases 20 are respectively installed at both ends of the lamp body 10. The power supply module 30 is installed within the volumetric space formed by the bases 20 and is electrically connected to the light source module 40. The light source module 40 is located within the lamp body 10. There may be one or two power supply modules 30. When there are two power supply modules 30, the two power supply modules 30 are respectively located within the volumetric spaces of the two bases and are electrically connected to both ends of the light source module 40.

[0024] Specifically, the lamp body 10 has a first end 110 and a second end 120 facing each other. The lamp body 10 protects the light source module 40, preventing damage to the light source module 40 and contamination by foreign objects and extending the service life of the light source module 40. It also adjusts the light emitted from the light source module 40, diffusing and softening the light emitted from the light source module 40, thereby avoiding the glare of LED light and providing decorative effects. The lamp body 10 may be cylindrical, rectangular, U-shaped, or the like. In this embodiment, the lamp body 10 has an elongated cylindrical shape. The lamp body 10 may be made of plastic, glass, or PC. In this embodiment, the lamp body 10 is made of a tempered glass material, thereby avoiding the problems of conventional glass lamps, such as breakage and explosion, electric shock due to leakage, and deformation due to heat, which are common in plastic lamps.

[0025] The two bases 20 are attached to the first end 110 and the second end 120 of the lamp body 10, respectively, to form a volume space. The bases 20 and the lamp body 10 can be joined by adhesive or a snap joint. One base 20 is attached to the first end 110 of the lamp body 10. The other base 20 is attached to the second end 120 of the lamp body 10. The bases 20 are further equipped with conductive pins 50. The conductive pins 50 are attached to the ends of the bases 20. Each base 20 has two conductive pins 50. The conductive pins 50 are used to electrically connect to an external power source. The conductive pins 50 may be solid or hollow. While the present embodiment describes the type of conductive pin, any configuration that can be electrically connected to an external power source falls within the scope of the present application, and other embodiments are not listed here. In another embodiment of the present application, an end of the base 20 is further provided with a vent hole (not shown). The vent hole is used to allow gas, such as air, to circulate. Air can circulate from the inside of the LED lamp to the outside of the LED lamp through the vent hole, or from the outside of the LED lamp to the inside of the LED lamp through the vent hole. The circulating gas can dissipate heat inside the LED lamp, thereby lowering the temperature of the LED lamp and improving the lifespan of the LED lamp. The base 20 may be made of a metal material, a plastic material, or a composite material of metal and plastic.

[0026] The power supply module 30 converts an external power source (general power supply) into a specific voltage and current to drive the light source module 40 to emit light. The power supply module 30 is located within one of the two volume spaces formed by at least the base 20 and the lamp body 10. Because the connection between the base 20 and the lamp body 10 may have an overlapping area, at least a portion of the power supply module 30 may be located in the end area of ​​the lamp body 10. To facilitate easy understanding by those skilled in the art, the following description will generally describe how the power supply module 30 is installed in the volume space within the base 20, but it goes without saying that other configurations are not excluded. When there are two power supply modules 30, one power supply module 30 is adjacent to the first end 110 of the lamp body 10, and the other power supply module 30 is adjacent to the second end 120 of the lamp body 10. When there is only one power supply module 30, it is sufficient that either end of the lamp body 10 has the power supply module 30. The power supply module 30 can be connected to the two bases 20, respectively, by snap joint, adhesive, or other means. In another embodiment of the present application, the power supply module 30 may be disposed directly within the volume of the base 20 so as to be electrically connected to the conductive pins 50 and the light source module 40. The conductive pins 50 pass through the end of the base 20 and are electrically connected to the power supply module 30. The power supply module 30 includes a power supply circuit board 310 and electronic components 320. The electronic components 320 are mounted on the power supply circuit board 310. The electronic components 320 include, but are not limited to, a voltage converter. The power supply module 30 connects to an external power source via the conductive pins 50 to supply power to the light source module 40.

[0027] Referring to FIG. 4 , the light source module 40 is located within the lamp body 10. In a specific embodiment of the present application, the light source module 40 includes a light board 410 and a light source 420. The light source 420 is installed on the light board 410. The light source 420 may be an LED lamp bead. The light source 420 can emit light to provide illumination when powered. Either end of the light board 410 has a connection area 411 and a light-emitting area 412 connected to the connection area 411. The light-emitting area 412 may be an area where the light source 420 is installed. The connection area 411 may be an area where the light source 420 is not installed. In another specific embodiment of the present application, when there are two power supply modules 30, the light board 410 has two connection areas 411. The two connection areas 411 are connected to the two power supply modules 30, respectively. The light-emitting area 412 is installed between the two connection areas 411. Before the connection section 411 and the power circuit board 310 are connected, an end of the connection section 411 is exposed from the first end 110 or the second end 120 of the lamp body 10. The end of the connection section 411 exposed from the lamp body 10 is connected to the power circuit board 310. The connection can be electrically connected via solder or other conductive materials. The connection section 411 and the power circuit board 310 are then installed together in the base 20 or the lamp body 10 to form the folding section 60. When there are two power supply modules 30, the first end 110 and the second end 120 of the lamp body 10 each have one folding section 60. As shown in FIG. 3 , the connection section 411 in the folding section 60 has a first bent portion 4111 and a second bent portion 4112. When the light board 410 is unfolded (not bent), the distance between the area where the first bent portion 4111 is located and the power circuit board 310 is greater than the distance between the area where the second bent portion 4112 is located and the power circuit board 310. In other words, the area where the second bent portion 4112 is located is closer to the power circuit board 310 than the area where the first bent portion 4111 is located. After the folding area 60 is formed, the first bent portion 4111 is closer to the one end 110 / 120 of the lamp body 10. The second bent portion 4112 is away from the one end 110 / 120 of the lamp body 10.

[0028] The connection section 411 of the folding section 60 does not have a light source 420 installed therein. The light source 420 is installed in the light-emitting section 412. When powered, the light-emitting section 412 emits light to provide illumination. The light-emitting section 412 can be fixed to the inner surface of the lamp body 10 using adhesive. The connection section 411 is mainly made of a flexible material. The light-emitting section 412 can be made of a flexible or rigid material, but is preferably made of a flexible material. Electrical conductors are installed in the connection section 411 and the light-emitting section 412. The conductors may be embedded in the insulating material of the substrate or formed on the surface of the substrate. The conductors may be copper wires formed by printing or plating. The conductors are electrically connected to the power circuit board 310 and the light source 420, respectively. When both the connection section 411 and the light-emitting section 412 are made of a flexible material, the connection section 411 and the light-emitting section 412 can be integrally formed. The connection area 411 and the light-emitting area 412 do not require solder connection, which facilitates production, saves costs, and makes the performance of the light board 410 more stable. In another embodiment of the present application, the connection area 411 and the light-emitting area 412 of the light board 410 are independent elements made of different materials. For example, the light-emitting area 412 is a rigid substrate (such as FR4 or an aluminum substrate), while the connection area 411 is a flexible circuit board (FPC). Both are electrically connected by solder or other connecting means.

[0029] Referring to FIG. 3 , the distance between the first bent portion 4111 of the connection area 411 and the power circuit board 310 is very short, resulting in a small electrical distance between the first bent portion 4111 of the connection area 411 and the power circuit board 310. When electricity is applied, a spark or arc is likely to occur between the first bent portion 4111 and the power circuit board 310. In addition, the distance between the second bent portion 4112 of the connection area 411 and the light board 410 below the second bent portion 4112 is also very short, resulting in a small electrical distance between the second bent portion 4112 of the connection area 411 and the light board 410 below the second bent portion 4112. When electricity is applied, a spark or arc is likely to occur between the second bent portion 4112 and the light board 410 below the second bent portion 4112. The electrical distance refers to an air gap distance that makes it very unlikely that a discharge will occur between the current-carrying parts or between the current-carrying parts and the grounding parts during the current-carrying operation. In particular, when the power supply module 30 adopts a step-up method, the LED lamp is more likely to generate sparks or arcs, and in this case, a larger electrical distance is required to avoid the generation of sparks or arcs.

[0030] Specifically, an installation prohibition zone is provided on the power supply circuit board 310 in the folding area 60. In this embodiment, the power supply circuit board 310 includes a first surface 3101 and a second surface 3102. The first surface 3101 is installed parallel to the second surface 3102. The second surface 3102 faces the connection zone 411 of the light board 410, and the first surface 3101 faces away from the connection zone 411 of the light board 410. The first bent portion 4111 has a circuit disposed facing the power supply circuit board 310. The installation prohibition zone means that the electronic components 320 and the welding points 330 are not installed in a position corresponding to the diameter direction of the second surface 3102 (direction a in FIG. 3 , i.e., the direction perpendicular to the power supply circuit board), and the distance between the power supply circuit board 310 and the first bent portion 4111 is 0.5 mm or more. In another embodiment of the present application, the second surface 3102 of the power supply circuit board 310 does not have electronic components 320 or welding points 330 in the area where the power supply circuit board 310 overlaps with the connection area 411 in the diameter direction (direction a in FIG. 3 ), and the power supply circuit board is kept at a distance of 0.5 mm or more from the first bent portion 4111. In an embodiment where the first bent portion 4111 is close to the power supply circuit board 310 in the area where the power supply circuit board 310 overlaps with the connection area 411 in the vertical direction (diameter direction), the electronic components 320 and welding points are not arranged, and the power supply circuit board and the light board folding area are kept at a distance of 0.5 mm or more. This ensures a sufficient electrical distance between the first bent portion 4111 and the electronic components 320, thereby preventing sparks or arcs from occurring between the first bent portion 4111 and the electronic components 320. Preferably, the power supply circuit board 310 in the folding area 60 does not have any electronic components 320 installed thereon, which further increases the electrical distance between the first bend 4111 and the electronic components 320, thereby avoiding sparks or arcs from occurring between the first bend 4111 and the electronic components 320.

[0031] In another embodiment of the present application, the power supply circuit board 310 includes a first surface 3101 and a second surface 3102. The first surface 3101 is arranged parallel to the second surface 3102. The second surface 3102 faces the connection area 411 of the light board 410. The back surface of the first surface 3101 faces the connection area 411 of the light board 410. The second surface 3102 includes a first area 31021 and a second area 31022. The second area 31022 overlaps with the connection area 411 of the light board 410 in the radial direction (diameter direction) of the lamp body 10. The first area 31021 does not overlap with the connection area 411 of the light board 410 in the radial direction of the lamp body 10. In this embodiment, the electronic components 320 and the welding points 330 are arranged only on the first area 31021 of the first surface 3101 and the second surface 3102 of the power supply circuit board 310. Neither electronic components 320 nor welding points 330 are provided in second area 31022 of second surface 3102, and a distance of 0.5 mm or more is maintained between the power supply circuit board and first bent portion 4111. Because second area 31022 of second surface 3102 is closest to first bent portion 4111, when electronic components 320 and welding points 330 are not provided, it is possible to effectively prevent sparks or arcs from occurring between first bent portion 4111 and electronic components 320 or welding points.

[0032] Furthermore, the light source 420 may not be installed in the area of ​​the light board 410 below the second bent portion 4112. That is, the light source 420 is not installed in the area of ​​the light board 410 that overlaps with the power circuit board 310 in the radial direction of the lamp body 10. Alternatively, only the connection area 411 of the light board 410 overlaps with the power circuit board 310, and the light emitting area 412 of the light board 410 does not overlap with the power circuit board 310, so that the light source 420 is installed only in the light emitting area 412 of the light board 410. This ensures a sufficient electrical distance between the second bent portion 4112 and the light source 420, and prevents sparks or arcs from occurring between the second bent portion 4112 and the light source 420. Preferably, the light board 410 in the folding area 60 is not provided with a light source 420, which can further increase the electrical distance between the second bend 4112 and the light source 420 and avoid the occurrence of spark or arc phenomenon between the second bend 4112 and the light source 420.

[0033] Referring to FIG. 5 , in another embodiment of the present disclosure, a spacer 4113 is installed in a position or area where sparks are likely to occur, i.e., the spacer 4113 is installed between the power circuit board 310 and the connection area 411 of the light board 410. The spacer 4113 is made of an insulating material. By having a certain thickness, the spacer 4113 can increase the electrical distance while increasing the insulation level of the spacer 4113, thereby preventing sparks and arcs from occurring. The spacer 4113 may be high-temperature tape, white glue, insulating coating film, insulating adhesive, insulating pipe casing, or the like. In one embodiment, the spacer 4113 may be installed on the power circuit board 310 located above the first bent portion 4111. The spacer 4113 is installed on at least one surface of the power circuit board 310 facing the first bent portion 4111. For example, as shown in FIG. 6 , the spacer 4113 is installed in at least the second area 31022 of the second surface 3102 of the power circuit board 310. The spacer 4113 is, for example, a high-temperature tape. The high-temperature tape is preferably arranged in a flat position so as to obtain a stable and reliable isolation effect. In another embodiment, the spacer 4113 may also be provided on the side of the first bent portion 4111 facing the power circuit board 310. The spacer 4113 is, for example, a white adhesive. By providing the spacer 4113 at the above two positions or areas, the electrical distance between the first bent portion 4111 and the electronic component 320 can be effectively increased, and sparks or arcs can be prevented from occurring between the first bent portion 4111 and the electronic component 320.

[0034] A spacer may be installed between the second bent portion 4112 and the light board 410 located thereunder. In another embodiment of the present application, the spacer 4113 may be installed on the light board 410 located below the second bent portion 4112. As shown in FIG. 6 , the spacer 4113 is installed on at least one surface of the light board 410 facing the second bent portion 4112. The spacer 4113 may be, for example, high-temperature tape. The spacer 4113 may also be installed on the side of the second bent portion 4112 facing the light board located thereunder. The spacer 4113 may be, for example, a white adhesive. By installing the spacer 4113 at the above two positions or regions, the electrical distance between the second bent portion 4112 and the light board 410 located below the second bent portion 4112 is effectively increased, and sparks or arcs may be prevented from occurring between the second bent portion 4112 and the light board 410 located below the second bent portion 4112.

[0035] In some embodiments, when the spacer 4113 is a coating film, the spacer 4113 is attached to the connection area 411 of the light board 410 (not shown), thereby preventing sparks or arcs from occurring between the first bent portion 4111 and the second bent portion 4112 and the power circuit board 310, and between the light board 410 located below the second bent portion 4112. The coating film may be attached to the entire light board 410.

[0036] 7 , in another embodiment of the present application, the shape of the connection area 411 in the lamp body 10 is changed to change the positions of the first bent portion 4111 and the second bent portion 4112, so that the first bent portion 4111 is spaced apart from the power circuit board 310, increasing the electrical distance between the first bent portion 4111 and the light source module 40. This makes it possible to prevent sparks and arcs from occurring between the first bent portion 4111 and the power circuit board 310. The second bent portion 4112 is spaced apart from the light board 410 located below the second bent portion 4112, increasing the electrical distance between the second bent portion 4112 and the light board 410 located below the second bent portion 4112. This makes it possible to prevent sparks and arcs from occurring between the second bent portion 4112 and the light board 410 located below the second bent portion 4112. Preferably, the connection area 411 is arranged in a "Z" shape in the lamp body 10, so that the first bent portion 4111 can be maximally separated from the power circuit board 310, and the second bent portion 4112 can be maximally separated from the light board 410 located below the second bent portion 4112.

[0037] More specifically, the fixing points between the light board 410 and the lamp body 10 can be moved to the first end 110 and the second end 120 of the lamp body 10, respectively, so that the connection area 411 forms a "Z" shape within the lamp body 10. The folding area 60 of the light board 410 can also be made to have a "Z" shape within the lamp body 10 by reducing the length of the folding area 60. For example, if the original unfolded length of the folding area 60 is 35-40 mm, to achieve the "Z" shape, the unfolded length of the folding area 60 can be reduced to 25-35 mm, preferably 30 mm. This allows the length of the folding area 60 in the longitudinal direction of the lamp body 10 to be maintained. If the reduced length is too long, the folding area 60 will still have an "S" shape, which will not effectively increase the electrical distance and will prevent sparks and arcs from occurring. If the reduced length is too short, the folding region 60 will be stretched too tightly, and the first bent portion 4111 and the second bent portion 4112 will be easily damaged during pulling or shaking, thereby shortening the lifespan of the LED lamp. Therefore, by converting the original "S" shape of the folding region 60 into a "Z" shape, a safe electrical distance can be maintained between the first bent portion 4111 and the power circuit board 310, and a safe electrical distance can be maintained between the second bent portion 4112 and the light board 410 located below the second bent portion 4112, while preventing the folding region 60 from being deformed within the lamp body 10 and reducing the electrical distance.

[0038] Therefore, the present application adopts at least one of a means for setting up a no-installation area in the folding area 60, a means for installing a spacer 4113 in the folding area 60, and a means for changing the shape of the folding area 60 in the lamp body 10, thereby increasing the electrical distance between the first bend 4111 and the power module 30, and the electrical distance between the second bend 4112 and the light board 410 located below the second bend 4112, thereby preventing sparks or arcs from occurring between the first bend 4111 and the power circuit board 310, and between the second bend 4112 and the light board 410 located below the second bend 4112, making the LED lamp safer during operation and preventing safety accidents.

[0039] In particular, the above features of the present application can be arbitrarily combined and used to modify the LED lamp, and it is clearly stated that the above embodiments are all examples. The present application is not limited to the above embodiments, and modifications can be made within the scope of the spirit and scope of the present application as defined in the claims. [Explanation of symbols]

[0040] 10...lamp body, 110...first end, 120...second end, 20...base, 30...power supply module, 310...power supply circuit board, 320...electronic components, 40...light source module, 410...light board, 411...connection area, 4111...first bent portion, 4112...second bent portion, 4113...spacer, 412...light-emitting area, 420...light source, 50...conductive pin, 60...folding area

Claims

1. a lamp body having a first end and a second end opposite each other; two caps respectively installed at a first end and a second end of the lamp body; a power supply module having a circuit board, and electronic components and welding points respectively mounted on the circuit board, the power supply module being mounted in a volume space formed by the lamp body and the base, the power supply module having a first surface and a second surface that are parallel to each other, the electronic components being mounted on at least the first surface, and the second surface having a first area and a second area; and a light source module located within the lamp body, the light board including a light source mounted on the light board, the light board having a connection area and a light-emitting area, the connection area being connected to the power supply module to form a folding area, the folding area overlapping the second area in a radial direction of the lamp body, and the electronic components and the welding points not being located in the second area.

2. The light source is disposed in the light emitting area; 2. The LED tube light according to claim 1, wherein the light-emitting area does not overlap with the circuit board in the radial direction of the lamp body.

3. a lamp body having a first end and a second end opposite each other; two caps respectively installed at a first end and a second end of the lamp body; a power supply module including a circuit board and installed in a volume space defined by the lamp body and the base; and a light source module located within the lamp body, the light source module including a light board having a connection area and a light-emitting area, and a light source installed in the light-emitting area of ​​the light board, the connection area being connected to the power supply module to form a folding area, the folding area overlapping the circuit board in the radial direction of the lamp body, and a spacer being installed between the folding area and the circuit board or between the folding area and the light board below.

4. the connection section located in the folding section has a first bend and a second bend; the circuit board has a spacer on a surface facing the first bent portion, The LED straight tube light according to claim 3, wherein the light board has a spacer on a surface facing the second bent portion.

5. 5. The LED tube light according to claim 4, wherein the spacer is a high-temperature tape.

6. the connection section located in the folding section has a first bend and a second bend; the first bent portion has a spacer on a surface adjacent to the circuit board; The LED straight tube light according to claim 3, wherein the second bent portion has a spacer on a surface adjacent to the light board.

7. 7. The LED tube light according to claim 6, wherein the spacer is a white adhesive.

8. The LED tube light of claim 6, wherein the spacer is attached to the connection area of ​​the light board.

9. 9. The LED tube light according to claim 8, wherein the spacer is a coating film.

10. the circuit board includes a first surface and a second surface disposed parallel to each other; The folding area and the second surface overlap in the radial direction of the lamp body, and no electronic components or welding points are provided therein; The LED straight tube light according to any one of claims 3 to 9, wherein the light source is installed in the light-emitting area so as not to overlap with the circuit board.

11. a lamp body having a first end and a second end opposite each other; two caps respectively installed at a first end and a second end of the lamp body; a power supply module including a circuit board and installed in a volume space defined by the lamp body and the base; a light source module including: a light board located within the lamp body, the light board having a connection area and a light-emitting area; and a light source installed in the light-emitting area of ​​the light board, the connection area being connected to the power module to form a folding area, the folding area being Z-shaped.

12. The LED tube light according to claim 11, wherein the unfolded length of the folding section is 25 to 35 mm.

13. 13. The LED tube light of claim 12, wherein the unfolded length of the folding section is 30 mm.

14. a spacer between the folding area and the circuit board; 13. The LED tube light of claim 12, further comprising a spacer between the folding area and the underlying light board.

15. the circuit board includes a first surface and a second surface disposed parallel to each other; The folding area and the second surface overlap in the radial direction of the lamp body, and no electronic components or welding points are provided therein; The LED tube light according to any one of claims 11 to 14, wherein the light source is installed in the light-emitting area so as not to overlap with the circuit board.

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