Tubular lighting fixtures

Abstract

The present invention provides a tubular lighting fixture that can suppress the excessive compression of the light-emitting area of ​​conventional light tubes by the plug. [Solution] The tubular lighting fixture includes an outer tube 100, a heat dissipation member 200, a light source plate 300, a drive plate 400, and two sealing members 500. The heat dissipation member 200 is connected to the inside of the outer tube 100, the light source plate 300 is attached to the heat dissipation member 200, the drive plate 400 is attached to the inside of the outer tube 100 and is electrically connected to the light source plate 300, the two sealing members 500 are each connected to both ends of the heat dissipation member 200 and fixed relative to the outer tube 100, at least one sealing member 500 has a base 501 that is electrically connected to the drive plate 400, and the sealing members 500 are not directly connected to the outer tube 100 but are directly connected to the heat dissipation member 200, thereby avoiding excessive occupation of the longitudinal direction of the outer tube 100 and compression of the length of the light emission area.

Description

【Technical Field】 【0001】 This application belongs to the field of lighting technology, and specifically relates to tubular lighting fixtures. 【Background Art】 【0002】 Fluorescent lamps are widely used as common lighting fixtures. With the continuous evolution of user needs, most of the currently commonly used fluorescent lamps are LED fluorescent lamps. This type of lamp includes a lamp tube, plugs installed at both ends of the lamp tube, and a light source module installed inside the lamp tube. In conventional lamp tubes, the plugs at both ends sandwich the lamp tube in the middle, and due to the long lengths of the plugs at both ends, the light-emitting area of the lamp tube is greatly compressed. For example, for a lamp tube with a specification of 1.2 meters, the length of the light-emitting area is only 1 meter, and thus even shorter. 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0003】 This application intends to provide a tubular lighting fixture to solve the technical problem that the length of the light-emitting area of a conventional lamp tube is excessively compressed by the plugs. 【Means for Solving the Problems】 【0004】 To achieve the above object, the tubular lighting fixture provided in this application includes an outer tube, a heat dissipation member, a light source board, a driving board, and two sealing members. The heat dissipation member is connected inside the outer tube. The light source board is attached to the heat dissipation member. The driving board is attached inside the outer tube and is electrically connected to the light source board. The two sealing members are respectively connected to both ends of the heat dissipation member and are fixed relative to the outer tube. At least one sealing member has a base electrically connected to the driving board. 【0005】 The sealing member of the tubular lighting fixture provided in this application is not directly connected to the outer tube but is directly connected to the heat dissipation member, thereby avoiding the excessive occupation of the longitudinal direction of the outer tube and the compression of the length of the light area. 【0006】 In one possible embodiment, the inner wall of the outer tube is provided with a first chute extending along its longitudinal direction, a heat dissipation member is slidably attached to the first chute, two sealing members are fixed to both ends of the heat dissipation member, and the inner wall of the outer tube is provided with a first stopper to prevent the sealing member from moving along the longitudinal direction of the outer tube to the middle of the outer tube. 【0007】 In one possible embodiment, the inner wall of the outer tube is provided with a first projection structure and a second projection structure, a first chute is formed between the first projection structure and the second projection structure, and a first stopper is formed at the end of the second projection structure. 【0008】 In one possible embodiment, a locking slot is provided at the end of the outer tube of the sealing member toward the middle, and a second stopper is provided on the inner wall of the outer tube, located within the locking slot. 【0009】 In one possible embodiment, the inner wall of the outer tube is provided with a second chute extending along its longitudinal direction, and the drive plate is mounted inside the second chute. 【0010】 In one possible embodiment, the inner wall of the outer tube is provided with a third projection structure and a fourth projection structure, a second chute is formed between the third projection structure and the fourth projection structure, and a second stopper is formed at the end of the third projection structure. 【0011】 In one possible embodiment, the sealing member is located inside the outer tube, and the end face of the sealing member away from the middle of the outer tube is flush with the end face of the outer tube. 【0012】 In one possible embodiment, the sealing member is located outside the outer tube. 【0013】 In one possible embodiment, the sealing member is partially located inside the outer tube and partially located outside the outer tube. 【0014】 In one possible embodiment, the sealing member is provided with an edge cover that fits onto the outer circumference of the end of the outer tube. [Brief explanation of the drawing] 【0015】 [Figure 1] This is a schematic diagram of the structure of a tubular illuminator provided in the first embodiment of the present application, with the viewing direction parallel to the longitudinal direction of the tubular illuminator. [Figure 2] This is a schematic diagram of the cross-sectional structure along line AA in Figure 1. [Figure 3] This is a schematic diagram of the structure of a tubular luminaire provided in the first embodiment of the present application, with the viewing direction perpendicular to the longitudinal direction of the tubular luminaire. [Figure 4] This is a schematic diagram of the cross-sectional structure along line BB in Figure 3. [Figure 5] Figure 4 is a schematic diagram of the cross-section of the outer tube. [Figure 6] Figure 4 is a schematic diagram of the cross-section of the heat dissipation member. [Figure 7] This is a schematic diagram of the three-dimensional structure of the end of the outer tube of a tubular lighting fixture provided in the first embodiment of the present application, where the outer tube is in a semi-stepped state. [Figure 8] This is a schematic diagram of the light ray transmission of a tubular lighting fixture provided in the first embodiment of the present application. [Figure 9] This is a schematic diagram of the three-dimensional structure of the sealing member of a tubular lighting fixture provided in the first embodiment of the present application. [Figure 10] This is a partial view of one end of the outer tube in Figure 2. [Figure 11] This is a schematic diagram of the half-stepped surface structure at the end of a tubular lighting fixture provided in the second embodiment of the present application. [Figure 12] This is a magnified view of area C in Figure 11. [Figure 13] This is a schematic diagram of the explosion structure at the end of a tubular lighting fixture provided in the third embodiment of the present application. [Figure 14] This is a schematic diagram of the three-dimensional structure of the sealing member of a tubular lighting fixture provided in the third embodiment of the present application. [Figure 15]It is a schematic diagram of the three-dimensional structure of the end part of the tubular lighting fixture provided in the third embodiment of the present application. [Figure 16] It is a schematic diagram of the three-dimensional structure of the sealing member of the tubular lighting fixture provided in the fourth embodiment of the present application. [Figure 17] It is a schematic diagram of the three-dimensional structure of the end part of the tubular lighting fixture provided in the fourth embodiment of the present application. 【Embodiments for Carrying out the Invention】 【0016】 Hereinafter, in order to more clearly clarify the technical problems, technical solutions and beneficial effects to be solved in the present application, the present application will be described in more detail with reference to the accompanying drawings and specific embodiments. It should be noted that the specific examples described in this specification are only for interpreting the present application and not for limiting the present application. 【0017】 In the present application, unless otherwise specifically limited, for example, terms such as "first", "second" or "third" used are not for limiting a specific order, but for distinguishing different objects. 【0018】 In the present application, unless otherwise specifically limited, for example, terms indicating directions or positional relationships such as "top", "bottom", "middle part", etc. used are only based on the directions and positional relationships shown in the accompanying drawings and for facilitating description and simplifying explanation, and do not indicate or suggest that the specified structure or element must have a specific orientation or be structured and operated in a specific orientation. These terms should not be construed as limiting the protection scope of the present application. 【0019】 In the present application, unless otherwise specifically limited, for example, the term "fixed" used should be understood in a broad sense, that is, any connection method without a displacement relationship or a relative rotational relationship between both, that is, including non-detachable fixing, detachable fixing, integrated connection, and fixing through other devices or elements. 【0020】 In this application, the terms "includes," "possesses," and variations thereof, as used for example, are intended to mean "includes, but not limited to." 【0021】 Now, with reference to the attached drawings, the tubular lighting fixture provided in this application will be described with specific embodiments. 【0022】 In one embodiment, referring to Figures 1 to 4, the tubular luminaire provided in this application includes an outer tube 100, a heat dissipation member 200, a light source plate 300, a drive plate 400, and two sealing members 500. The heat dissipation member 200 is located inside the outer tube 100 and is connected to the outer tube 100. The light source plate 300 is attached to the heat dissipation member 200. The drive plate 400 is attached inside the outer tube 100 and is electrically connected to the light source plate 300. The two sealing members 500 are each connected to both ends of the heat dissipation member 200 and are fixed relative to the outer tube 100. At least one sealing member 500 has a base 501 that is electrically connected to the drive plate 400. 【0023】 Compared to the conventional technology, the beneficial effects of the tubular lighting fixture provided in this embodiment are as follows: The sealing member 500 is not directly connected to the outer tube 100, but is indirectly connected to the outer tube 100 via the heat dissipation member 200 and fixed relative to the outer tube 100. When the sealing member is directly connected to the outer tube of the lighting fixture, because the wall thickness of the outer tube is relatively thin, the sealing member generally cannot be connected to the outer tube by connecting to the end face of the outer tube, and it is necessary to connect to the outer tube in the longitudinal direction of the outer tube, which occupies the length of the outer tube and leads to a reduction in the length of the light emission area of ​​the lighting fixture. In this embodiment, by connecting the sealing member 500 to the outer tube 100 via the heat dissipation member 200, it is possible to avoid excessively occupying the length of the outer tube, thereby increasing the length of the light emission area of ​​the lighting fixture. 【0024】 In this embodiment, the heat dissipation member 200 can be fixed to the outer tube 100, and the sealing member 500 is fixed to the end of the heat dissipation member 200, thereby achieving relative fixation between the sealing member 500 and the outer tube 100. When the sealing member 500 and the outer tube 100 are fixed relative to each other, the sealing member 500 cannot move along the longitudinal direction of the outer tube 100, nor can it rotate along its own circumferential direction. 【0025】 Selectively, the heat dissipation member 200 may be fixed to the outer tube 100 by methods such as screw connection, adhesive bonding, or fastening. 【0026】 Selectively, the sealing member 500 may be fixed to the end of the heat dissipation member 200 by methods such as screw connections, pin connections, or locking. Generally, the sealing member 500 is detachably connected to the end of the heat dissipation member 200. 【0027】 In this embodiment, the light source plate 300 may be fixedly attached to the heat dissipation member 200 by screws. 【0028】 Selectively, as shown in Figure 6, a mounting groove 201 may be provided in the heat dissipation member 200, and the light source plate 300 is fixed within the mounting groove 201, as shown in Figure 4. As shown in Figure 6, two veneers 202 may be provided on the heat dissipation member 200 at a distance from each other, and the above-mentioned mounting groove 201 is formed between the two veneers 202. The veneers 202 extend along the longitudinal direction of the outer tube 100, and the two veneers 202 are parallel to each other. 【0029】 The veneer 202 may be provided on the top of the heat dissipation member 200. As shown in Figure 4, when the light source plate 300 is placed in the mounting groove 201, one surface of the light source plate 300 is bonded to the heat dissipation member 200, enabling effective heat dissipation and extending the service life of the light source plate 300. A light-emitting unit is provided on the other surface of the light source plate 300 to realize illumination. The two veneers 202 are on both sides of the light source plate 300, fixing the position of the light source plate 300 and preventing lateral movement of the light source plate 300. Selectively, the light source plate 300 and the veneers 202 may be set to have a certain frictional force to hold the light source plate 300 within the mounting groove 201. 【0030】 Selectively, a cuff 203 may be provided at the top of the veneer 202 to further determine the position of the light source plate 300 and to prevent the light source plate 300 from coming out of the mounting groove 201. 【0031】 Selectively, the mounting groove 201 penetrates the heat dissipation member 200 along its longitudinal direction, and the elongated light source plate 300 can be pushed into the mounting groove 201 from either end of the heat dissipation member 200. 【0032】 In this embodiment, as shown in Figure 4, the drive plate 400 may be mounted in a position closer to the bottom. 【0033】 In this application, the directions indicated by the terms "apex" and "base" are shown by the vertical arrows on the right side of Figure 4. 【0034】 In this embodiment, the base 501 is used for connection to an external power supply. The drive plate 400 is connected to the external power supply via the base 501, converts the electrical energy of the external power supply into a current suitable for the light source plate 300, and further drives the light-emitting unit on the light source plate 300 to operate and emit light. 【0035】 In one embodiment, as shown in Figures 5 and 7, a first chute 101 is provided on the inner wall of the outer tube 100, extending along its longitudinal direction L. The heat dissipation member 200 is slidably attached to the first chute 101. Two sealing members 500 are fixed to both ends of the heat dissipation member 200, respectively. As shown in Figure 7, a first stopper 102 is provided on the inner wall of the outer tube 100 to prevent the sealing member 500 from moving along the longitudinal direction of the outer tube 100 toward the middle of the outer tube 100. 【0036】 Generally, as shown in Figure 2, the heat dissipation member 200 has a long structure, and its length is approximately the same as the length of the outer tube 100, with the heat dissipation member 200 being slightly shorter than the outer tube 100. In this embodiment, the heat dissipation member 200 slides against the outer tube 100. In this way, when assembling the lighting fixture, by aligning one end of the heat dissipation member 200 with the first chute 101 at one end of the outer tube 100, the entire heat dissipation member 200 can be smoothly pushed into the outer tube 100. This assembly operation is simple and easy to perform, which is advantageous in improving the assembly efficiency of the lighting fixture. 【0037】 After the heat dissipation member 200 is pushed into the outer tube 100, the two sealing members 500 are fixed to both ends of the heat dissipation member 200. Both sealing members 500 are prevented by the first stopper 102 from moving along the longitudinal direction of the outer tube 100 toward the middle of the outer tube 100, and can only be held at the ends of the outer tube 100. At this time, both sealing members 500 and the heat dissipation member 200 are fixed relative to the outer tube 100. 【0038】 In this embodiment, as shown in Figures 5 and 7, a first projection structure 103 and a second projection structure 104 can be provided on the inner wall of the outer tube 100, and the first chute 101 is formed between them. The first stopper 102 is formed at the end of the second projection structure 104. 【0039】 Selectively, as shown in Figure 7, the second projection structure 104 may be a stripe-shaped projection parallel to the longitudinal direction of the outer tube 100. 【0040】 Selectively, as shown in Figure 5, the first projection structure 103 may extend from the inner wall of the outer tube 100 toward the middle and top portions of the outer tube. Thus, the first projection structure 103 can be used not only to form the first chute 101 at its base, but its main body can also be bonded to the heat dissipation member 200 (as shown in Figure 4). Bonding the first projection structure 103 to the heat dissipation member 200 has at least three beneficial effects. 【0041】 Firstly, the heat on the heat dissipation member 200 can be effectively transferred to the outer tube 100 via the first projection structure 103, which is advantageous for heat dissipation of the lighting fixture. Referring to Figures 4 and 6, the first projection structure 103 can have its main body attached to the inclined side surface of the heat dissipation member 200, as well as its top end attached to the veneer 202 of the heat dissipation member 200. 【0042】 Secondly, the first projection structure 103 can serve to fix the heat dissipation member 200, which is advantageous for stably holding the heat dissipation member 200 inside the outer tube 100. 【0043】 Thirdly, the first projection structure 103 can be involved in transmitting light rays and increasing the illumination area of ​​the luminaire. As shown in Figure 8, the dashed lines with arrows in the figure schematically represent light rays. Referring to Figure 8, without the first projection structure 103, the light rays emitted from the light-emitting unit of the light source plate 300 are mainly concentrated in the middle section. After the first projection structure 103 is provided, the light rays can be emitted not only from the middle section of the outer tube 100 but also from both sides of the outer tube 100, thereby increasing the illumination area of ​​the luminaire in the circumferential direction of the outer tube 100. When the first projection structure 103 is involved in transmitting light rays, it is easy to understand that it is made of a material that can reflect light. 【0044】 Selectively, the first projection structure 103, the second projection structure 104, and the outer tube 100 may be manufactured by an integral molding method (e.g., extrusion molding). 【0045】 Selectively, as shown in Figure 6, the heat dissipation member 200 is provided with a first protrusion 204. Referring to Figures 4 and 5, the first protrusion 204 engages with the first chute 101, thereby achieving sliding contact between the heat dissipation member 200 and the outer tube 100. 【0046】 Selectively, as shown in Figure 6, the heat dissipation member 200 is provided with a second protrusion 205 adjacent to the first protrusion 204, and a third chute 206 is formed between them. Referring to Figures 4 and 5, the second projection structure 104 engages with the third chute 206, making the sliding contact between the heat dissipation member 200 and the outer tube 100 more stable and reliable. 【0047】 In this embodiment, after being pressed into the outer tube 100, the heat dissipation member 200 cannot rotate in the circumferential direction and slides only along the longitudinal direction of the outer tube 100, and has no degrees of freedom in other directions. 【0048】 Selectively, as shown in Figure 1, the sealing member 500 is fixed to the end of the heat dissipation member 200 via a connecting member 502. The connecting member 502 may be a screw, pin, or similar component. As shown in Figures 6 and 9, the heat dissipation member 200 and the sealing member 500 may each have a first connecting hole 207 and a second connecting hole 503, respectively, which cooperate with the connecting member 502. The connecting member 502 enters the first connecting hole 207 through the second connecting hole 503, thereby achieving fixation between the sealing member 500 and the end of the heat dissipation member 200. 【0049】 Selectively, as shown in Figure 6, a notch may be provided in the wall of the first connecting hole 207. In this way, when the connecting member 502 enters the first connecting hole 207, the wall of the first connecting hole 207 can deform slightly to prevent the connecting member 502 from forcing into the first connecting hole 207 and damaging it. 【0050】 Selectively, the second connecting hole 503 may be a countersunk hole that conceals the head of the connecting member 502 so as not to protrude from the end face of the sealing member 500 on the side away from the middle portion of the outer tube 100. 【0051】 If the connecting member 502 is a screw, the first connecting hole 207 may be a threaded hole suitable for a screw, and the second connecting hole 503 may be a through hole. 【0052】 Selectively, as shown in Figure 9, a first pad 504 may be provided at the end of the sealing member 500 toward the middle of the outer tube 100. The second connection hole 503 is formed in the first pad 504. Furthermore, after the sealing member 500 is placed inside the outer tube 100 and fixed to the end of the heat dissipation member 200, the first pad 504 can abut against the first stopper 102 to prevent the sealing member 500 from moving toward the middle of the outer tube 100 along the longitudinal direction of the outer tube 100, thereby achieving relative fixing of the two sealing members 500 and the outer tube 100. 【0053】 Selectively, as shown in Figure 9, a second pad 505 may be provided at the end of the sealing member 500 toward the middle of the outer tube 100. When the sealing member 500 is placed inside the outer tube 100 and fixed to the end of the heat dissipation member 200, the second pad 505 abuts against the end of the light source plate 300, preventing the light source plate 300 from moving along the longitudinal direction of the outer tube 100, and thus plays a role in fixing the light source plate 300. 【0054】 In one embodiment, as shown in Figure 9, a locking slot 506 is provided at the end of the outer tube 100 of the sealing member 500 toward the middle portion, and a second stopper 105 is provided on the inner wall of the outer tube 100. The second stopper 105 is located within the locking slot 506. The structure provided in this embodiment has at least the following two beneficial effects. 【0055】 Firstly, since the second stopper 105 is located within the locking slot 506, it can prevent the circumferential rotation of the sealing member 500 and thus plays a positioning role relative to the sealing member 500. 【0056】 Secondly, when assembling the lighting fixture, after the second stopper 105 enters the locking slot 506, the second connection hole 503 on the sealing member 500 is aligned with the first connection hole 207 at the end of the heat dissipation member 200, thereby fixing the sealing member 500 and the heat dissipation member 200 via the connection member 502. 【0057】 In one embodiment, as shown in Figures 5 and 7, a second chute 106 extending along its longitudinal direction is provided on the inner wall of the outer tube 100. As shown in Figure 4, the drive plate 400 is installed inside the second chute 106. 【0058】 Selectively, as shown in Figure 9, an L-shaped hook 507 is provided at the end of the sealing member 500 that faces the middle of the outer tube 100. One end of the L-shaped hook 507 is fixed to the sealing member 500, and the other end is located inside the opening of the drive plate 400 (as shown in Figure 2), thereby preventing the drive plate 400 from moving along the longitudinal direction of the outer tube and serving as a positioning mechanism for the drive plate 400. 【0059】 Selectively, the power input and output terminals of the drive plate 400 are placed on the same end of the drive plate 400 to simplify wiring. The power input terminal of the drive plate 400 can be electrically connected to the base 51 via a first metal wire. The output terminal of the drive plate 400 can be electrically connected to the light source plate 300 via a second metal wire. 【0060】 Although it is possible to supply power from one end (i.e., the power input and output terminals of the drive plate 400 are located at the same end of the drive plate 400), generally, both of the two sealing members 500 are provided with sockets 51. The socket of one sealing member 500 is electrically connected to the drive plate 400, while the socket of the other sealing member 500 is not electrically connected but needs to be physically connected to the corresponding connection slot of the socket mounting fixture. 【0061】 Selectively, the first metal wire may be a rigid bare metal wire bent into an L-shape. One end of the first metal wire can be inserted into the drive plate 400 by an automated device, and the other end can be connected to the socket 501 on the sealing member 500 to achieve an electrical connection. Compared to a flexible connection wire, a rigid connection wire is easier to insert into the socket 501 and is advantageous for improving assembly efficiency. The material of the first metal wire may be copper, copper-clad steel, aluminum-clad steel, or a similar material. 【0062】 Selectively, double-insulated wires can be used, or sleeves can be added to protect the second metal wire and prevent it from being cut or damaged at the point where the wire body is bent. Selectively, the light source plate 300 is provided with female terminals that can be soldered to the light source plate 300 by reflow soldering. 【0063】 In one embodiment, as shown in Figures 5 and 7, the inner wall of the outer tube 100 is provided with a third projection structure 107 and a fourth projection structure 108, the second chute 106 is formed between the third projection structure 107 and the fourth projection structure 108, and the second stopper 105 is formed at the end of the third projection structure 107. 【0064】 Selectively, the first projection structure 103, the second projection structure 104, and the fourth projection structure 108 have flush end faces, and compared to these three, the end of the third projection structure 107 is closer to the sealing member 500, so that end can enter the locking slot 506 provided in the sealing member 500 as the second stopper 105. 【0065】 Selectively, the first projection structure 103, the second projection structure 104, the third projection structure 107, the fourth projection structure 108 and the outer tube 100 may be manufactured by an integral molding method (e.g., extrusion molding). 【0066】 Compared to removing material from the inner wall of the outer tube to form chutes, in this invention, material is grown on the inner wall of the outer tube 100 to form protruding structures 103, 104, 107, and 108, and further chutes 101 and 106 are formed. As a result, the outer tube 100 can have a smaller wall thickness, which is advantageous not only for optimizing the light emission effect but also for saving costs by reducing the amount of material used during the manufacture of the outer tube 100. 【0067】 In this invention, the first chute 101 and the second chute 106 may both be set to penetrate the outer tube 100 along the longitudinal direction, and the heat dissipation member 200 and the drive plate 400 can both be pushed into the outer tube 100 from either end of the outer tube 100. 【0068】 In this application, the sealing member 500 may be located inside the outer tube 100, or outside the outer tube 100, or a portion of it may be located inside the outer tube 100 and another portion may be located outside the outer tube 100, each of which will be explained below. 【0069】 In one embodiment, as shown in Figure 10, the sealing member 500 is located inside the outer tube 100, and the end face 508 of the sealing member 500, away from the middle portion of the outer tube 100, is flush with the end face of the outer tube 100. 【0070】 In this embodiment, since the end face 508 of the sealing member 500 is flush with the end face of the outer tube 100, when viewed perpendicular to the longitudinal direction of the lighting fixture, the length of the outer tube 100 is the length of the lighting fixture, and a 1.2-meter outer tube 100 can be selected for a 1.2-meter standard lighting fixture. Furthermore, since the sealing member 500 is located inside the outer tube 100, the appearance of the lighting fixture becomes cleaner and more aesthetically pleasing. 【0071】 In one embodiment, as shown in Figure 11, the sealing member 500 is located outside the outer tube 100. 【0072】 Selectively, the end face of the sealing member 500 toward the middle portion of the outer tube 100 is flush with the end face of the outer tube 100. 【0073】 Selectively, the outer surface of the sealing member 500 may be flush with the outer surface of the outer tube 100. 【0074】 Selectively, to reduce steps due to manufacturing precision, an aesthetic slit 509 can be provided between the sealing member 500 and the outer tube 100, as shown in Figure 12, or the diameter of the sealing member 500 can be made slightly smaller than the diameter of the outer tube 100 (when both the sealing member and the outer tube have circular cross-sections). 【0075】 In one embodiment, a portion of the sealing member 500 is located inside the outer tube 100, and another portion is located outside the outer tube 100. 【0076】 As shown in Figures 13 and 14, in this embodiment, the radius of the first half-circumference 510 of the sealing member 500 is set to be smaller than the radius of the second half-circumference 511, and correspondingly, a half-circumference protrusion 109 may be provided at the end of the outer tube 100. After the sealing member 500 is attached to the end of the outer tube 100, the first half-circumference 510 of the sealing member 500 is covered by the half-circumference protrusion 109 of the outer tube 100 and is located inside the outer tube 100, while the second half-circumference 511 of the sealing member 500 is located outside the outer tube 100, as shown in Figure 15. In this way, not only does it have an anti-fogging effect, but the half-circumference protrusion 109 can also ensure the integrity of the light-emitting surface as part of the light-emitting surface. 【0077】 Selectively, as in the previous embodiment, an aesthetic slit may be provided between the second half-circumference 511 and the outer tube 100, or the diameter of the second half-circumference 511 may be made slightly smaller than the diameter of the outer tube 100, in order to reduce steps due to manufacturing precision. 【0078】 In one embodiment, as shown in Figures 16 and 17, the sealing member 500 is provided with an edge cover 512 that fits onto the outer circumference of the end of the outer tube 100. 【0079】 In this embodiment, inserting the end of the outer tube 100 into the sealing member 500 after the sealing member 500 has been attached to the end of the outer tube 100 can improve the reliability of the connection between the sealing member 500 and the outer tube 100. 【0080】 Selectively, the length of the edge cover 512 (the size along the longitudinal direction of the outer tube of the edge cover) is greater than half the total length of the sealing member 500 (the size along the longitudinal direction of the outer tube of the sealing member). 【0081】 The foregoing are merely preferred embodiments of the present application and do not limit the scope of protection. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should all be included within the scope of protection. [Explanation of Symbols] 【0082】 100...Outer tube, 101...First chute, 102...First stopper, 103...First projection structure, 104...Second projection structure, 105...Second stopper, 106...Second chute, 107...Third projection structure, 108...Fourth projection structure, 109...Half-circumference convex edge, 200...Heat dissipation member, 201...Mounting groove, 202...Veneer, 203...Cuff, 204...First protrusion, 205...Second protrusion, 206...Third chute, 207...First connection hole, 300...Light source plate, 400... Drive plate, 500...Sealing member, 501...Mouthpiece, 502...Connecting member, 503...Second connecting hole, 504...First pad, 505...Second pad, 506...Locking slot, 507...L-shaped hook, 508...End face, 509...Aesthetic slit, 510...First half-circle, 511...Second half-circle, 512...Edge cover.

Claims

[Claim 1] Outer tube and, A heat dissipation member located inside the outer tube and connected to the outer tube, A light source plate attached to the heat dissipation member, A drive plate is installed inside the outer tube and electrically connected to the light source plate, The heat dissipation member includes two sealing members, each connected to both ends and fixed relative to the outer tube, with at least one having a nozzle electrically connected to the drive plate. The sealing member is located inside the outer tube, and the end face of the sealing member that is away from the middle portion of the outer tube is flush with the end face of the outer tube. A tubular lighting fixture characterized by the following features. [Claim 2] The inner wall of the outer tube is provided with a first chute extending along its longitudinal direction, the heat dissipation member is slidably attached to the first chute, the two sealing members are fixed to both ends of the heat dissipation member, and the inner wall of the outer tube is provided with a first stopper to prevent the sealing members from moving along the longitudinal direction of the outer tube toward the middle of the outer tube. The tubular lighting fixture according to feature 1. [Claim 3] The inner wall of the outer tube is provided with a first projection structure and a second projection structure, the first chute is formed between the first projection structure and the second projection structure, and the first stopper is formed at the end of the second projection structure. The tubular lighting fixture according to feature 2. [Claim 4] A locking slot is provided at the end of the sealing member toward the middle of the outer tube, and a second stopper is provided on the inner wall of the outer tube, located within the locking slot. The tubular lighting fixture according to feature 2. [Claim 5] The inner wall of the outer tube is provided with a second chute extending along its longitudinal direction, and the drive plate is mounted inside the second chute. The tubular lighting fixture according to feature 4. [Claim 6] The inner wall of the outer tube is provided with a third projection structure and a fourth projection structure, the second chute is formed between the third projection structure and the fourth projection structure, and the second stopper is formed at the end of the third projection structure. The tubular lighting fixture according to feature 5.

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