LED lamp tube for 360-degree luminous signboard lamp box

Abstract

The LED lamp tube comprises a light source assembly, a supporting body and a power supply module, the elliptic cylinder structure and the structural surface design of the supporting body replace traditional polygonal edges, groove clamping plates are tightly arranged in the circumferential direction, the installation density of the light source assembly is maximized, the opening direction of the groove clamping plates is parallel to the radial direction, and therefore the light source assembly can emit light in the radial direction. The LED module can diverge light rays at multiple angles of 0-360 degrees, seamless coverage of the light rays in the circumferential direction and the axial direction is achieved in combination with the continuous extension characteristic of the structural face, dark space intervals in a traditional scheme are avoided, the irradiation range of a single-side light source is expanded through curvature changes, and the light-emitting area and the illumination uniformity are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lamps and lanterns, in particular to a 360-degree light-emitting LED tube for sign lamp boxes. BACKGROUND

[0002] Conventional 360-degree light-emitting LED tubes for sign lamp boxes usually use single light sources or linearly arranged LED modules as light-emitting units, and the support bodies are mostly designed as polygonal structures. Such lamps and lanterns are limited by the geometric shape of the support body, and the arrangement density and irradiation angle of the light source assembly are often difficult to improve, resulting in a small overall light-emitting area and insufficient light distribution uniformity. Especially in advertising scenarios that require wide-range and multi-angle lighting, the existing lamps and lanterns are prone to problems such as insufficient local brightness or obvious light spot spacing, making it difficult to meet the visual demand of billboards for high brightness and wide coverage. In addition, the adaptability of lamps and lanterns with traditional structures is poor in complex installation environments such as arc-shaped billboards or irregular display surfaces, limiting their application range.

[0003] In order to expand the light-emitting area, an improved scheme is proposed in the prior art: the support body is designed as a polygonal structure such as a hexagon or an octagonal prism, and independent LED modules are arranged on each side. The adjacent planes are connected by edges, and each plane is embedded with a light source assembly. By increasing the number of side surfaces of the support body, this scheme can accommodate more LED modules, thereby expanding the light source arrangement space in the circumferential dimension and indirectly improving the overall light-emitting area. In addition, some schemes further optimize the light divergence angle by adjusting the included angle between adjacent planes, such as 30°-60°, to enhance the irradiation effect of billboards in different directions.

[0004] However, the above-mentioned polygonal support body scheme has significant defects. First, the edges between adjacent planes will cause the light to form a bright-dark boundary line at the connection, causing light spots to be discontinuous, affecting the uniformity and aesthetics of billboard lighting. Second, the edge structure is prone to dust accumulation and has poor heat dissipation performance, which may cause light efficiency to decrease due to dust accumulation or uneven temperature after long-term use. In addition, the planar arrangement of the polygonal support body limits the installation angle of the light source assembly, and the light divergence direction of the LED module is limited by the normal direction of the plane, making it difficult to achieve a wide-angle lighting effect with smooth transition in the entire circumferential direction. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a 360-degree light-emitting LED tube for sign lamp boxes with a large light range.

[0006] According to an aspect of the present application, a LED tube for 360-degree light-emitting signboard lamp box is provided, comprising: a light source assembly, a support body, and a power supply module, wherein the light source assembly is composed of at least one LED module; the support body has an outer circumferential surface comprising a plurality of circumferentially and axially continuous and smoothly transitioned structure surfaces, and at least two adjacent recessed clamping plates are arranged on the structure surfaces, and the opening direction of the recessed clamping plates is perpendicular to the axial direction of the support body, and the light source assembly is arranged in the recessed clamping plates; and the power supply module is arranged in a through axial accommodating cavity in the support body and is electrically connected with the light source assembly.

[0007] In an embodiment, the cross-sectional profile of the support body is any one of an irregular polygon, an ellipse, or a circle in the axial projection of the support body.

[0008] In an embodiment, the support body is a column structure, and the cross section of the column structure forms a minor axis in the axial projection of the support body. The support body further comprises two symmetrically arranged assembling parts, and the two assembling parts are respectively located on the two sides of the minor axis direction of the column structure and extend along the axial direction of the support body. Each assembling part has a concave arc structure in the cross section, and the concave arc structure is recessed towards the outside of the minor axis direction to form a clamping opening for clamping and fixing with an external structure.

[0009] In an embodiment, the LED tube for 360-degree light-emitting signboard lamp box further comprises a lampshade, the lampshade is sleeved on the outer circumferential surface of the support body, the inner wall of the lampshade is provided with a clamping part matched with the clamping opening, and the clamping part extends along the axial direction, and the clamping part is clamped and fixed with the clamping opening.

[0010] In an embodiment, the LED tube for 360-degree light-emitting signboard lamp box further comprises lamp cover structures arranged at the two ends of the support body along the axial direction, the lamp cover structures are provided with first recesses recessed inward along the axial direction, the groove wall of the first recesses abuts against the end of the lampshade, and the inner side wall of the first recesses forms an axial limiting fit with the clamping part of the lampshade. The lamp cover structures are provided with a through axial fixing screw hole group, and the fixing screw hole group comprises at least two circumferentially distributed threaded holes. The support body is provided with the arc structure at the positions corresponding to the threaded holes at the two ends, and a fastener penetrates the threaded holes and is connected with the arc structure, so that the lamp cover structures are fixed at the two ends of the support body.

[0011] In an embodiment, the lamp cover structure comprises a top cover and a bottom cover which are fitted along the axial direction, the bottom cover is formed with a second groove along the axial direction, the top cover is fitted into the bottom cover through the second groove, and the fixing hole group comprises a first hole and a second hole which are sequentially penetrated through the top cover and the bottom cover along the axial direction. The lamp cover structure further comprises a fastener which is sequentially penetrated through the first hole and the second hole along the axial direction of the support body and is fixed in the arc-shaped structure, as viewed along the axial direction perpendicular to the support body.

[0012] In an embodiment, the bottom cover is provided with at least two fixing pins on the contact surface opposite to the top cover, and the axis of each fixing pin is parallel to the axial direction of the support body. The contact surface of the top cover is provided with positioning holes corresponding to the number and positions of the fixing pins. The outer diameter of the fixing pin and the inner diameter of the positioning hole form a transition fit, and when the top cover is fitted into the second groove, the fixing pin is inserted into the corresponding positioning hole to realize the angle correction of the top cover and the bottom cover in the circumferential direction.

[0013] In an embodiment, the LED module comprises a substrate and LED lamps, the substrate has a mounting surface matched with the inner surface of the groove clamping plate, and a plurality of LED lamps are arranged at equal intervals along the axial direction of the support body.

[0014] In an embodiment, the power supply module comprises a power supply unit and a shell assembly, the shell assembly is internally formed with a mounting chamber, the shell assembly is clampingly connected in the accommodating cavity, and the power supply unit is arranged in the mounting chamber.

[0015] In an embodiment, the power supply unit is provided with clamping protrusions on both sides, the inner wall of the accommodating cavity is provided with annular clamping grooves corresponding to the positions of the clamping protrusions, and the clamping protrusions and the annular clamping grooves form axial limiting fit.

[0016] The present application has the following beneficial effects:

[0017] The LED lamp tube for a 360-degree light-emitting signboard lamp box mentioned above, through the collaborative design of the cylindrical support body and the structural surface, significantly improves the light-emitting area and the lighting uniformity. Specifically, the elliptical cylindrical structure of the support body and the continuous and smooth transition of the peripheral surface of the structural surface replace the traditional polygonal edges, so that the adjacent concave clamping plates can be closely arranged in the circumferential direction without edge interference, thereby maximizing the installation density of the light source assembly in a limited space. At the same time, the opening direction of the concave clamping plate is radially parallel to the support body, so that the LED module of the light source assembly can emit light rays at multiple angles of 0-360° in the radial direction. Combined with the continuous extension characteristics of the structural surface, seamless connection and coverage of the light rays in the circumferential and axial directions are realized. In addition, the concave clamping plates are arranged adjacent to each other on the same structural surface, and a coherent light source arrangement belt is formed through the smooth transition of the curved surface base, which not only avoids the dark interval between the polygonal planes, but also naturally expands the illumination range of the unilateral light source through the curvature change. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0019] Figure 1 It is a front view of a LED lamp tube for a 360-degree light-emitting signboard lamp box;

[0020] Figure 2 It is a front view of a LED lamp tube for a 360-degree light-emitting signboard lamp box after the lampshade is removed;

[0021] Figure 3 It is a front side axial view of the lamp cover structure;

[0022] Figure 4 It is a rear side axial view of the lamp cover structure;

[0023] Figure 5 It is an axial sectional view of the LED lamp tube for a 360-degree light-emitting signboard lamp box in a first state;

[0024] Figure 6 It is an enlarged view of A part of Figure 4

[0025] Figure 7 It is an axial sectional view of the LED lamp tube for a 360-degree light-emitting signboard lamp box in a second state;

[0026] Figure 8 It is an axial sectional view of the LED lamp tube for a 360-degree light-emitting signboard lamp box in a third state; ​

[0027] Figure 9 Axial view of the support body with the power supply module partially extended;

[0028] Figure 10 Front view of the power supply module;

[0029] Figure 11 Front view of the LED module;

[0030] Figure 12 Cross-sectional view of the support body in the first irregular polygonal shape;

[0031] Figure 13 Cross-sectional view of the support body in the second irregular polygonal shape;

[0032] Figure 14 Cross-sectional view of the support body in the third irregular polygonal shape;

[0033] Figure 15 Cross-sectional view of the support body in the fourth irregular polygonal shape;

[0034] Figure 16 Cross-sectional view of the support body in the fifth irregular polygonal shape.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1, light source assembly; 2, LED module; 3, support body; 4, structural surface; 5, recessed clamping plate; 6, power supply module; 7, accommodating cavity; D, short axis; 10, assembly; 11, bayonet; 12, lampshade; 13, clamping portion; 14, lamp cover structure; 15, first recess; 16, fixed screw hole group; 18, top cover; 19, bottom cover; 20, second recess; 21, first screw hole; 22, second screw hole; 23, fastener; 24, fixed pin; 25, positioning hole; 26, base plate; 27, LED lamp; 28, power supply unit; 29, shell assembly; 30, mounting chamber; 100, LED lamp tube for 360-degree light-emitting sign lamp box. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right", and the like are merely used for the purpose of illustration and are not intended to be limiting.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] Reference will now be made to Figure 1 - Figure 16 The embodiment of the present application provides a LED lamp tube 100 for 360-degree light-emitting signboard lamp box, which comprises a light source assembly 1, a support body 3 and a power supply module 6. The light source assembly 1 is composed of at least one LED module 2. The outer peripheral surface of the support body 3, viewed along the axial direction of the support body 3, comprises a plurality of circumaxial and continuously smooth transition structure surfaces 4, the structure surfaces 4 are provided with at least two adjacent recessed clamping plates 5, the opening direction of the recessed clamping plates 5 is perpendicular to the axial direction of the support body 3, and the light source assembly 1 is arranged in the recessed clamping plates 5. The power supply module 6 is arranged in a cylindrical accommodating cavity 7 penetrating through the support body 3 in the axial direction and is electrically connected with the light source assembly 1.

[0041] Further, the continuously smooth transition structure surfaces 4 eliminate the edge structure of the traditional polygonal support body 3, avoid the formation of bright-dark boundary lines at the connection, and improve the uniformity and aesthetics of light distribution. The opening direction of the recessed clamping plates 5 is perpendicular to the axial direction, so that the installation angle of the light source assembly 1 can be adjusted, full-circumferential wide-angle illumination can be realized, the power supply module 6 is coaxially arranged with the support body 3 through the accommodating cavity 7, the internal space utilization rate is optimized, the support body 3 serves as a heat dissipation channel, the heat dissipation efficiency is improved, the recessed clamping plates 5 are evenly distributed along the circumferential direction of the support body 3, the light source assembly 1 is fixed through the recessed clamping plates 5, a stable light source arrangement structure is formed, the accommodating cavity 7 is coaxially designed with the support body 3, the electric connection path between the power supply module 6 and the light source assembly 1 is the shortest, energy loss is reduced, high-density light source arrangement and wide-angle coverage are realized through the combination of the structure surfaces 4 and the recessed clamping plates 5, and the reliability and service life of the lamp are improved due to the heat dissipation performance of the support body 3 and the integrated design of the power supply module 6.

[0042] In a specific embodiment, the cross section of the support body 3 is any one of an irregular polygon, an ellipse or a circle along the axial projection of the support body 3.

[0043] Further, the cross section of the support body 3 is an irregular polygon. By adopting the design of an irregular polygon, the support body 3 can avoid the problem of clear and dark boundary lines caused by edges in traditional regular polygons, realize smoother light transition, and thus significantly improve the uniformity of light distribution. In addition, the design of an irregular polygon also optimizes the arrangement density and installation angle of the light source assembly 1, so that the light divergence direction of the LED module 2 is more flexible, further enhancing the all-around lighting effect of the billboard. At the same time, this design reduces the planar connections in the surface area of the support body 3, reduces the possibility of dust accumulation, and improves the heat dissipation performance, ensuring that the lamp maintains high and stable light efficiency in long-term use.

[0044] More preferably, the cross section of the support body 3 is a circle. The circular cross-sectional design realizes all-around uniform lighting, completely eliminates the problem of light interruption at the edges or planar connections, and makes the light distribution more continuous and without dead angles. The circular support body 3 has the best heat dissipation performance, as its surface area is uniformly distributed, heat can be efficiently dissipated, and local overheating that leads to a decrease in LED light efficiency is avoided. In addition, the curved surface structure of the circle is not easy to accumulate dust, further improving the dustproof performance of the lamp and prolonging the service life. The design of the circular support body 3 also enhances the adaptability of the lamp in complex installation environments, such as arc-shaped billboards or irregular display surfaces, expanding its application range.

[0045] Most preferably, the cross section of the support body 3 is an ellipse. The design of an ellipse combines the advantages of a circle and an irregular polygon, which can further optimize the light divergence angle while ensuring uniform light distribution, realizing a wider-angle lighting effect. The curved surface structure of the ellipse reduces the phenomenon of light concentration, making the illumination effect of the billboard more uniform in different directions. In addition, the design of the elliptical support body 3 also performs well in terms of heat dissipation and dustproof performance, as its curved surface structure can uniformly dissipate heat and reduce dust adhesion, ensuring that the lamp maintains high and stable light efficiency in long-term use. The design of the ellipse also improves the adaptability of the lamp in complex installation environments, making it better meet the lighting needs of diversified scenes.

[0046] In a specific embodiment, the support body 3 is a column structure, and along the axial projection of the support body 3, the column structure cross section forms a short axis D. The support body 3 further comprises two symmetrically arranged fittings 10, and the two fittings 10 are respectively located on both sides of the short axis D direction of the column structure and extend along the axial direction of the support body 3. Wherein, the cross section of each fitting 10 is an arc-shaped structure concave inward, and the arc-shaped structure concave inward is recessed outward on the side of the short axis D direction to form a bayonet 11, and the bayonet 11 is used for clamping and fixing with an external structure.

[0047] Further, the support body 3 is a column structure, the fittings 10 are symmetrically arranged on both sides of the short axis D direction, the cross section of the fitting 10 is an arc-shaped structure concave inward to form a bayonet 11, the column structure is designed symmetrically on the short axis D direction, which enhances the structural stability of the support body 3, the bayonet 11 of the arc-shaped structure concave inward can be tightly clamped with an external structure such as a lampshade 12 or an advertising board frame, which improves the installation adaptability and anti-deformation ability of the lamp, the direction of the bayonet 11 is perpendicular to the short axis D, so that the lamp can be clamped and fixed on both sides of the short axis D, which avoids the rotation of the support body 3, and the contact area between the arc-shaped structure concave inward and the external structure is increased, which further enhances the stability of the connection. Through the design of the column structure and the arc-shaped bayonet 11, the adaptability of the lamp to the special-shaped advertising board is improved, and the anti-deformation ability and installation stability of the overall structure are enhanced.

[0048] In a specific embodiment, the LED lamp tube for 360-degree light-emitting signboard light box further comprises a lampshade 12, the lampshade 12 is sleeved on the outer peripheral surface of the support body 3, the inner wall of the lampshade 12 is provided with a clamping part 13 matched with the bayonet 11, and the clamping part 13 extends along the axial direction, and the clamping part 13 is clamped and fixed with the bayonet 11.

[0049] Further, the inner wall of the lampshade 12 is provided with a clamping part 13 matched with the bayonet 11 of the support body 3, the lampshade 12 is tightly matched with the bayonet 11 of the support body 3 through the axially extending clamping part 13 to form a dustproof sealing structure, the clamping part 13 is uniformly distributed along the inner wall of the lampshade 12, which ensures the stable connection between the lampshade 12 and the support body 3, the multi-point clamping design of the clamping part 13 and the bayonet 11 enables the lampshade 12 to bear force uniformly, avoiding local stress concentration, and the tight matching of the clamping part 13 and the bayonet 11 prevents dust from entering the light source area. Through the matching design of the clamping part 13 and the bayonet 11, the installation process of the lampshade 12 is simplified, the dustproof performance of the lamp is improved, and the uniformity of light distribution is further improved through the light diffusion effect of the lampshade 12.

[0050] In a specific embodiment, the LED tube for 360-degree light-emitting signboard lamp box further comprises a lamp cover structure 14 arranged at both ends of the support body 3 along the axial direction, the lamp cover structure 14 is provided with a first groove 15 recessed inward along the axial direction, the groove wall of the first groove 15 is in abutment with the end of the lampshade 12, and the inner side wall of the first groove 15 forms an axial limiting fit with the clamping part 13 of the lampshade 12. The lamp cover structure 14 is provided with a group of axial through fixing screw holes 16, the group of fixing screw holes 16 comprises at least two screw holes distributed along the circumference. The support body 3 is provided with the arc-shaped structure at the positions corresponding to the screw holes at both ends, and a fastener 23 is penetrated through the screw holes and connected with the arc-shaped structure, so that the lamp cover structure 14 is fixed at both ends of the support body 3.

[0051] Further, the lamp cover structure 14 is in abutment with the end of the lampshade 12 through the first groove 15 recessed along the axial direction, and is fastened with the arc-shaped structure of the support body 3 through the group of fixing screw holes 16. The first groove 15 of the lamp cover is designed to limit the axial displacement of the lampshade 12, preventing the lampshade 12 from falling off. The group of fixing screw holes 16 is uniformly distributed along the circumference, so that the lamp cover and the support body 3 form a multi-point locking, enhancing the end sealing performance and overall structural strength. The groove of the lamp cover wraps the end of the lampshade 12, and the fastener 23 is penetrated through the screw holes and threadedly connected with the arc-shaped surface of the support body 3, forming a stable axial limiting fit. At the same time, the uniformly distributed screw holes design makes the lamp cover bear force uniformly, avoiding local deformation. Through the design of the first groove 15 and the group of fixing screw holes 16, the sealing performance and structural strength of the lamp cover are improved, and the installation and disassembly process of the lamp cover is simplified.

[0052] In a specific embodiment, the lamp cover structure 14 comprises a top cover 18 and a bottom cover 19 embedded along the axial direction. As viewed along the axial direction, the bottom cover 19 is formed with a second groove 20 along the axial direction, the top cover 18 is embedded into the bottom cover 19 through the second groove 20, and the group of fixing screw holes 16 comprises a first screw hole 21 and a second screw hole 22 sequentially penetrated through the top cover 18 and the bottom cover 19 along the axial direction. The lamp cover structure 14 further comprises a fastener 23, as viewed along the axial direction perpendicular to the support body 3, the fastener 23 is sequentially penetrated through the first screw hole 21 and the second screw hole 22 along the axial direction of the support body 3 and fixed in the arc-shaped structure.

[0053] Further, the lamp cover is composed of the top cover 18 and the bottom cover 19, the bottom cover 19 is provided with the second groove 20 for accommodating the top cover 18, and the set of fixing screw holes 16 penetrates through the top cover 18 and the bottom cover 19. The split lamp cover design facilitates assembly and maintenance, the second groove 20 of the bottom cover 19 can accurately position the top cover 18, the set of fixing screw holes 16 penetrates through the top cover 18 and the bottom cover 19 to ensure coaxial fixation of the two, the top cover 18 and the bottom cover 19 are coaxially fixed through axial embedding and screw holes, forming a stable connection structure, and the penetration design of the screw holes enables the fastener 23 to be uniformly stressed, avoiding local stress concentration. Through the split design and the penetration fixation of the screw holes, the processing difficulty of the lamp cover is reduced, and the assembly precision and efficiency are improved.

[0054] In a specific embodiment, at least two fixing pins 24 are protrudingly arranged on the contact surface of the bottom cover 19 opposite to the top cover 18, and the axis of each fixing pin 24 is parallel to the axial direction of the support body 3. The contact surface of the top cover 18 is provided with positioning holes 25 corresponding to the number and position of the fixing pins 24. The outer diameter of the fixing pin 24 and the inner diameter of the positioning hole 25 form a transition fit, and when the top cover 18 is embedded in the second groove 20, the fixing pin 24 is inserted into the corresponding positioning hole 25 to realize the angle correction of the top cover 18 and the bottom cover 19 in the circumferential direction.

[0055] Further, the bottom cover 19 is provided with the fixing pin 24 and the top cover 18 is provided with the positioning hole 25 for transition fit, the fixing pin 24 is inserted into the positioning hole 25 to realize the angle correction of the top cover 18 and the bottom cover 19 in the circumferential direction, ensuring accurate positioning of the two during assembly. The transition fit of the fixing pin 24 and the positioning hole 25 limits the rotational freedom of the top cover 18, so that the top cover 18 and the bottom cover 19 maintain a fixed angle in the circumferential direction. At the same time, the pin-hole cooperation design simplifies the assembly process. Through the cooperation design of the fixing pin 24 and the positioning hole 25, the assembly error of the split lamp cover is eliminated, ensuring the alignment of the screw holes and the consistency of the appearance.

[0056] In a specific embodiment, the LED module 2 includes a substrate 26 and LED lamps 27, the substrate 26 has a mounting surface matched with the inner surface of the groove clamping plate 5, and a plurality of LED lamps 27 are arranged at equal intervals along the axial direction of the support body 3.

[0057] Further, the substrate 26 of the LED module 2 is matched with the inner surface of the groove clamping plate 5, and the LED lamps 27 are arranged at equal intervals along the axial direction. The substrate 26 is designed to fit the curved surface of the groove, optimizing the heat dissipation path. The LED lamps 27 are arranged at equal intervals along the axial direction, avoiding local overheating. The substrate 26 is fixed through the groove clamping plate 5, forming a stable light source arrangement structure. The equal interval arrangement of the LED lamps 27 enables the light to be uniformly distributed along the axial direction. Through the matching design of the substrate 26 and the groove clamping plate 5, the heat dissipation efficiency and the uniformity of light distribution are improved.

[0058] In a specific embodiment, the power supply module 6 comprises a power supply unit 28 and a housing assembly 29, the housing assembly 29 is internally formed with a mounting chamber 30, and the housing assembly 29 is snap-fitted in the accommodating cavity 7, and the power supply unit 28 is arranged in the mounting chamber 30.

[0059] Further, the power supply module 6 housing assembly 29 is snap-fitted in the accommodating cavity 7, the housing is quickly mounted by snap-fitting, the power supply unit 28 is in direct contact with the support body 3 for heat dissipation, the housing snap-fitting protrusions are matched with the annular clamping grooves of the accommodating cavity 7 to form stable axial limiting, and at the same time, the direct contact of the housing with the support body 3 optimizes the heat dissipation path, the replacement process of the power supply module 6 is simplified through the snap-fitting design, and the heat dissipation stability and the reliability of the lamp are enhanced.

[0060] In a specific embodiment, the power supply module 6 is formed with snap-fitting protrusions on both sides, the inner wall of the accommodating cavity 7 is provided with annular clamping grooves corresponding to the positions of the snap-fitting protrusions, and the snap-fitting protrusions are matched with the annular clamping grooves to form axial limiting.

[0061] Further, the power supply module 6 snap-fitting protrusions are axially limited by the annular clamping grooves, the protrusions and the clamping grooves prevent the module from moving axially, ensure the stable connection of the power supply module 6, the protrusions are distributed along the circumference of the module, the clamping grooves are coaxially designed with the accommodating cavity 7, the power supply module 6 is uniformly stressed, and through the matching design of the protrusions and the clamping grooves, the anti-shock property and the contact reliability of the power supply module 6 are improved.

[0062] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application.

Claims

1. An LED tube for a 360-degree luminous signboard lightbox, characterized in that, include: The light source assembly consists of at least one LED module; The support body, viewed along the axial direction, has an outer peripheral surface comprising multiple structural surfaces that surround the axial direction and transition smoothly and continuously. Each structural surface has at least two adjacent grooved plates, and the opening direction of the grooved plates is perpendicular to the axial direction of the support body. The light source assembly is disposed within the grooved plates. The power supply module has an axially penetrating cylindrical cavity inside the support body, and the power supply module is located inside the cavity and electrically connected to the light source assembly.

2. The LED tube for a 360-degree luminous signboard lightbox according to claim 1, characterized in that, Projected along the axial direction of the support, the cross-section of the support is any shape among irregular polygons, ellipses, or circles.

3. The LED tube for a 360-degree luminous signboard lightbox according to claim 1, characterized in that, The support is a column structure, and the cross section of the column structure has a short axis when projected along the axial direction of the support. The support also includes two symmetrically arranged fittings, which are located on both sides of the short axis of the column structure and extend along the axial direction of the support. Each component has a concave arc-shaped cross-section, and the concave arc-shaped structure is recessed outward toward the short axis to form a snap-fit, which is used to engage and fix with an external structure.

4. The LED tube for a 360-degree luminous signboard lightbox according to claim 3, characterized in that, The LED tubes used in the 360-degree illuminated signboard light box also include a lampshade. The lampshade is fitted onto the outer periphery of the support body. The inner wall of the lampshade is provided with a snap-fit ​​part that matches the bayonet, and the snap-fit ​​part extends along the axial direction. The snap-fit ​​part is snapped and fixed with the bayonet.

5. The LED tube for a 360-degree luminous signboard lightbox according to claim 4, characterized in that, The LED tubes used in the 360-degree illuminated signboard light box also include lamp cover structures disposed at both ends of the support body along the axial direction. The lamp cover structure is provided with a first groove that is recessed inward along the axial direction. The groove wall of the first groove abuts against the end of the lampshade, and the inner side wall of the first groove forms an axial limiting fit with the snap-fit ​​part of the lampshade. The lamp cover structure is provided with a set of fixing screw holes that pass through the axial direction, and the set of fixing screw holes includes at least two threaded holes distributed in the circumferential direction; The support body has arc-shaped structures at both ends corresponding to the threaded holes. Fasteners pass through the threaded holes and connect to the arc-shaped structures, so that the lamp cover structure is fixed to both ends of the support body.

6. The LED tube for a 360-degree luminous signboard lightbox according to claim 5, characterized in that, The lamp cover structure includes a top cover and a bottom cover that fit together along the axial direction. When viewed along the axial direction, the bottom cover has a second groove formed along the axial direction. The top cover is embedded in the bottom cover through the second groove. The fixing screw hole group includes a first screw hole and a second screw hole that pass through the top cover and the bottom cover in sequence along the axial direction. The lamp cover structure also includes fasteners. When viewed along the axial direction perpendicular to the support body, the fasteners pass through the first screw hole and the second screw hole in sequence along the axial direction of the support body and are fixed in the arc-shaped structure.

7. The LED tube for a 360-degree luminous signboard lightbox according to claim 6, characterized in that: At least two fixing pins are provided on the contact surfaces of the bottom cover and the top cover, and the axis of each fixing pin is parallel to the axis of the support body. The contact surface of the top cover is provided with positioning holes corresponding to the number and position of the fixing pins; The outer diameter of the fixing pin and the inner diameter of the positioning hole form a transition fit. When the top cover is embedded in the second groove, the fixing pin is inserted into the corresponding positioning hole to achieve circumferential angle correction between the top cover and the bottom cover.

8. The LED tube for a 360-degree luminous signboard lightbox according to claim 1, characterized in that, The LED module includes a substrate and LED lights. The substrate has a mounting surface that is adapted to the inner surface of the grooved plate, and multiple LED lights are arranged at equal intervals along the axial direction of the support.

9. The LED tube for a 360-degree luminous signboard lightbox according to claim 1, characterized in that, The power supply module includes a power supply unit and a housing assembly. The housing assembly has an installation chamber inside and is snap-fitted into the receiving chamber. The power supply unit is located in the installation chamber.

10. The LED tube for a 360-degree luminous signboard lightbox according to claim 8, characterized in that, The power supply module has snap-fit ​​protrusions on both sides, and the inner wall of the receiving cavity is provided with an annular groove corresponding to the position of the snap-fit ​​protrusions. The snap-fit ​​protrusions and the annular grooves form an axial limiting fit.

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