Spinning self-locking welding-free quick-connection type tube lamp

Abstract

This invention relates to a spin-formed self-locking, solderless, quick-connect downlight, comprising a drive assembly, a lamp body assembly, and an annular spin-formed component. The drive assembly has a drive plate connected to the lower end of a first housing, and an axial pin terminal connected to the drive plate and extending downwards along the axial direction. The lower end of the first housing also has an inclined positioning rib and an elastic retaining bead. Two conductive springs of the lamp body assembly are respectively connected to both sides of the light-emitting element and form a conductive plane perpendicular to the axial direction at the upper end of the insulating support. The top surface of the guide section of the guide groove of the annular spin-formed component is inclined downwards along the first circumferential direction. The second spiral fastening structure at the lower end of the annular spin-formed component cooperates with the first spiral fastening structure at the upper end of the second housing. The upper end of the annular spin-formed component also has a positioning recess. The positioning rib moves downwards along the guide section, the elastic retaining bead cooperates with the positioning recess, and the axial pin terminal contacts the conductive plane. This downlight can be quickly assembled without tools, has high structural strength, and good electrical safety.

Description

Technical Field

[0001] This invention relates to the field of LED lighting technology, specifically to a spin-formed self-locking, solderless, quick-connect downlight. Background Technology

[0002] Downlights are a common type of lighting fixture that can be recessed into the ceiling. Existing downlights have a fragmented structure with many parts, and assembly usually relies solely on screws for fastening, resulting in low assembly efficiency. Power is generally supplied by soldering wires, which can easily lead to safety issues such as incomplete soldering, detachment, poor contact, and excessive temperature rise. Traditional products lack an overall axial self-locking limit structure, making them prone to parts falling off due to vibration during transportation.

[0003] In addition, existing downlights have at least one of the following problems: conventional downlights have insufficient cavity depth, resulting in poor anti-glare effect; the mounting brackets are subjected to uneven stress, making them prone to loosening and making abnormal noises when used in ceilings; the internal conductivity is mostly single-point contact, which can easily lead to failure due to long-term thermal expansion and contraction, resulting in poor product stability and inconvenience in disassembly and maintenance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a spin-forming self-locking, weld-free, quick-connect downlight assembly structure. This assembly structure can solve the defects of existing downlights, such as cumbersome assembly, the need for welding wiring, and easy loosening of the structure. This assembly structure can be quickly assembled without tools, has high structural strength, and good electrical safety.

[0005] To achieve the objectives of this invention, a self-locking, solderless, quick-connect downlight with spin forming is provided, comprising a drive assembly, a lamp body assembly, and an annular spin forming component: the drive assembly includes a first housing, a drive plate, and an axial ejector pin terminal; the drive plate is connected to the inner side of the lower end of the first housing, and the axial ejector pin terminal is connected to the drive plate and extends downward along the axial direction; the lower end of the first housing is also provided with a positioning rib, the top surface of the front end portion of the positioning rib along the first circumferential direction is inclined downward along the first circumferential direction, and the lower end of the first housing is also provided with an elastic retaining bead; the lamp body assembly includes a second housing, an insulating support base, a light-emitting element, and two conductive springs; the light-emitting element is connected to the insulating support base; the two conductive springs are separated from each other and are respectively connected to the two ends of the light-emitting element. The second housing covers the outside of the insulating support base, and the upper end of the second housing is provided with a first spiral fastening structure; the lower end of the annular spinning part is provided with a second spiral fastening structure, which is spirally engaged with the first spiral fastening structure and can reach a second locking position; the upper end of the annular spinning part is provided with a guide groove, which includes an upwardly open insertion section and a guide section located at the lower end of the insertion section, and the top surface of the guide section is inclined downward along the first circumferential direction; the upper end of the annular spinning part is also provided with a positioning recess; when the positioning rib moves downward along the guide section to the first locking position, the elastic ball engages with the positioning recess, and the axial ejector pin terminal contacts the conductive plane.

[0006] In some embodiments of the present invention, the second spiral fastening structure is inclined downward along the first circumferential direction; when the driving component rotates relative to the lamp body assembly along the first circumferential direction or the lamp body assembly rotates relative to the driving component along the second circumferential direction opposite to the first circumferential direction, the positioning rib moves along the guide section to the first locking position, and the first spiral fastening structure moves along the second spiral fastening structure to the second locking position.

[0007] In some embodiments of the present invention, the positioning ribs include a first positioning rib and a second positioning rib distributed circumferentially at the lower end of the first housing, wherein the circumferential dimension of the first positioning rib is smaller than the circumferential dimension of the second positioning rib; the guide grooves include a first guide groove and a second guide groove distributed circumferentially at the upper end of the annular spun part, wherein the first guide groove is used to cooperate with the first positioning rib, and the second guide groove is used to cooperate with the second positioning rib; the circumferential dimension of the insertion section of the first guide groove is larger than the circumferential dimension of the first positioning rib and smaller than the circumferential dimension of the second positioning rib.

[0008] In some embodiments of the present invention, the first positioning rib and the second positioning rib further include a limiting protrusion disposed on the rear side of the front end portion along the first circumferential direction, and an elastic retaining ball is disposed on the limiting protrusion; a limiting groove is also provided between the insertion section and the guide section, the limiting groove cooperates with the limiting protrusion, and a positioning recess is disposed in the limiting groove.

[0009] In some embodiments of the present invention, the lower end of the first housing includes axial grooves provided on both sides of the front end portion and on both sides of the limiting protrusion.

[0010] In some embodiments of the present invention, the front end portion of the first positioning rib and the limiting protrusion together form the circumferential dimension of the first positioning rib.

[0011] In some embodiments of the present invention, the second positioning rib further includes a foolproof protrusion disposed on the rear side of the limiting protrusion along the first circumferential direction, and the front end portion of the second positioning rib, the limiting protrusion and the foolproof protrusion together form the circumferential dimension of the first positioning rib.

[0012] In some embodiments of the present invention, the positioning rib is provided on the outer wall of the lower end of the first housing, and the guide groove is provided on the inner wall of the upper end of the annular spinning part.

[0013] In some embodiments of the present invention, the second spiral fastening structure is disposed on the outer wall of the lower end of the annular spun part, and the first spiral fastening structure is disposed on the inner wall of the upper end of the second housing.

[0014] In some embodiments of the present invention, the positioning recess is a through hole.

[0015] In some embodiments of the present invention, a mounting post is provided in the middle of the first housing, and the drive plate is connected to the mounting post by a first fastener.

[0016] In some embodiments of the present invention, a limiting block is provided on the inner side of the lower end of the first housing, and a limiting groove is provided on the drive plate to cooperate with the limiting block.

[0017] In some embodiments of the present invention, the drive plate is provided with a clearance groove at the position corresponding to the elastic retaining ball.

[0018] In some embodiments of the present invention, the upper end of the first housing is provided with a wire outlet hole, and the drive assembly further includes a terminal block and an external wire. The terminal block is disposed on the drive plate and close to the wire outlet hole, and the end of the external wire is connected to the terminal block by a second fastener.

[0019] In some embodiments of the present invention, the fixed end of the axial ejector terminal is connected to the drive plate, and the elastic end of the axial ejector terminal is a spherical conductive head, which can elastically extend and retract toward the fixed end.

[0020] In some embodiments of the present invention, the insulating support base has a support platform in the middle and a buckle above the support platform. The light-emitting element is disposed between the support platform and the buckle. The support platform has an axial through hole for the light emitted by the light-emitting element to pass through.

[0021] In some embodiments of the present invention, the lower ends of both sides of the insulating support base are provided with insertion ports, and the first end of the conductive spring sheet forms a flanged protrusion, which extends into the insertion port and contacts the light-emitting element.

[0022] In some embodiments of the present invention, the insulating support base has a bent portion in the middle of both sides, and a positioning protrusion is provided on the bent portion; the conductive spring sheet has a positioning hole in the middle, and the positioning hole cooperates with the positioning protrusion.

[0023] In some embodiments of the present invention, the upper end of the insulating support base is provided with a planar support portion and a circumferential stop portion along the first circumferential direction, and a hollow area is formed between the planar support portion and the circumferential stop portion. The hollow area is located above the bent portion. The second end of the conductive spring includes a conductive plane formed on the hollow area, a first folded edge disposed at the first end of the conductive plane and abutting against the circumferential stop portion, an extension surface disposed at the second end of the conductive plane and extending to the planar support portion, and a second folded edge bent relative to the extension surface and located on one side of the planar support portion.

[0024] In some embodiments of the present invention, the lamp assembly further includes a tapered deep anti-glare optical cup and a third housing. The tapered deep anti-glare optical cup includes an optical element and an outer cover disposed outside the optical element. The upper end of the optical element is inserted into an insulating support base, and the lower end of the optical element is snapped into the outer cover. The upper end of the outer cover is snapped into the insulating support base, and the lower end of the outer cover is adjacent to the inner wall of the third housing. At least one of the insulating support base and the outer cover is connected to at least one of the second housing and the third housing. The second housing has a pressure block in the middle and two arc-shaped holes around the pressure block. The upper end of the third housing is connected to the lower end of the second housing by a third fastener. The pressure block is connected to the back of the light-emitting element, and the conductive plane and the extended surface are located in the arc-shaped holes.

[0025] In some embodiments of the present invention, the lamp body assembly further includes a first rotating housing, which is disposed on the outer side of the lower end of the third housing, and the left and right ends of the first rotating housing are hinged to the lower end of the third housing; the top of the rear end of the first rotating housing is provided with a plurality of horizontally extending first scale grooves, and the lower end of the third housing is provided with a first elastic protrusion, which cooperates with at least one first scale groove.

[0026] In some embodiments of the present invention, when the first elastic protrusion engages with the lowermost first scale groove, the opening of the first rotating housing is axially downward, and the top of the rear end of the first rotating housing is located between the third housing and the second housing; when the first elastic protrusion engages with the uppermost first scale groove, the opening of the first rotating housing is deviated from the axial direction, and the front end of the second housing is provided with a notch to accommodate the first rotating housing.

[0027] In some embodiments of the present invention, the lamp body assembly further includes a second rotating housing, which is disposed on the outer side of the lower end of the first rotating housing; the inner peripheral wall of the second rotating housing is provided with a circumferentially extending annular groove, and the outer peripheral wall of the first rotating housing is provided with a plurality of circumferentially distributed spring clips, which cooperate with the annular groove; the inner peripheral wall of the second rotating housing is also provided with an axially extending second scale groove, and the lower end of the first rotating housing is also provided with a second elastic protrusion, which cooperates with at least one second scale groove.

[0028] In some embodiments of the present invention, the lamp body assembly further includes a light guide cone shell, the upper end of which is snapped onto the lower part of the first rotating shell; the lower end of the light guide cone shell is adjacent to the lower end of the inner peripheral wall of the second rotating shell.

[0029] In some embodiments of the present invention, the lamp body assembly further includes two stainless steel spring clip brackets, which are respectively disposed on both sides of the second rotating housing; the stainless steel spring clip brackets include a fixing plate, a bending plate and a side plate, the fixing plate is connected to the outer peripheral wall of the second rotating housing, the bending plate is disposed at the lower end of the fixing plate and protrudes upward and then extends downward in a direction away from the fixing plate, and the side plates are disposed on both sides connected to the upper end of the fixing plate and extend downward in a direction away from the second rotating housing.

[0030] Compared with the prior art, the present invention can achieve the following beneficial effects: The self-locking, weld-free, quick-connect downlight of this invention connects the drive assembly and the lamp body assembly via a ring-shaped spinning component. The ring-shaped spinning component and the drive assembly are guided to a first locking position by inclined positioning ribs and inclined guide grooves, and locked together by the cooperation of elastic retaining beads and positioning recesses. The ring-shaped spinning component and the lamp body assembly reach a second locking position through a second spiral fastening structure that engages with the first spiral fastening structure. This assembly structure achieves the assembly connection of the drive assembly and the lamp body assembly without using any screws, glue, or other tools; the entire machine is locked simply by rotation. Assembly speed is fast, making it suitable for mass production on assembly lines. Furthermore, the ring-shaped spinning component, drive assembly, and lamp body assembly are axially locked by spinning, resulting in high structural strength. The components will not disintegrate or loosen during transport, and the lightlight is moisture-proof and corrosion-resistant, making it suitable for various home and commercial installations.

[0031] While the annular spinning part connects the drive assembly and the lamp body assembly, the axial pin terminal of the drive assembly rotates and presses down to the contact position of the conductive plane of the conductive spring in the lamp body assembly, realizing electrical conduction. This avoids welding between the two, eliminates the risk of fire caused by poor welding, and ensures that the two are in axial contact without radial force, thus better resisting high and low temperature cycle deformation, with stable contact and lower temperature rise. The conductive spring is supported by the insulating support base, which has a higher level of insulation protection and is safe and reliable. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the spin-forming self-locking, solderless, quick-connect downlight embodiment of the present invention from a first-view perspective.

[0033] Figure 2 This is a structural schematic diagram of the embodiment of the self-locking, solderless, quick-connect downlight of the present invention from a second perspective.

[0034] Figure 3 This is an exploded view of the structure of the spin-formed self-locking, solderless, quick-connect downlight embodiment of the present invention from a third-person perspective.

[0035] Figure 4 This is an exploded view of the structure of the embodiment of the self-locking, weld-free quick-connect downlight of the present invention from a fourth perspective.

[0036] Figure 5 This is an exploded cross-sectional view of an embodiment of the spin-formed self-locking, weld-free quick-connect downlight of the present invention.

[0037] Figure 6 This is a schematic diagram of the structure of the first housing of the spin-pressed self-locking, weld-free quick-connect downlight embodiment of the present invention.

[0038] Figure 7 This is another structural schematic diagram of the first housing of the embodiment of the spin-formed self-locking, weld-free quick-connect downlight of the present invention.

[0039] Figure 8 This is a schematic diagram of the annular spun component of an embodiment of the self-locking, weld-free, quick-connect downlight of the present invention.

[0040] Figure 9 This is another structural schematic diagram of the annular spun component of the embodiment of the self-locking, weld-free, quick-connect downlight of the present invention.

[0041] Figure 10 This is a schematic diagram of the structure of the second housing of the spin-forming self-locking, weld-free quick-connect downlight embodiment of the present invention.

[0042] Figure 11 This is a schematic diagram of the structure of the axial pin terminal and conductive spring in the embodiment of the self-locking, solderless quick-connect downlight of the present invention.

[0043] Figure 12 This is another structural schematic diagram of the axial pin terminal and conductive spring in the embodiment of the self-locking, solderless quick-connect downlight of the present invention.

[0044] Figure 13 This is an exploded view of the conductive spring, light-emitting element, and insulating support in an embodiment of the self-locking, solderless, quick-connect downlight of the present invention.

[0045] Figure 14 This is another exploded view of the conductive spring, light-emitting element, and insulating support in the embodiment of the self-locking, solderless quick-connect downlight of the present invention.

[0046] Figure 15 This is a schematic diagram of the conical deep anti-glare optical cup in an embodiment of the spin-formed self-locking, weld-free quick-connect downlight of the present invention.

[0047] Figure 16 This is a schematic diagram of the structure of the third housing in an embodiment of the spin-pressed self-locking, weld-free quick-connect downlight of the present invention.

[0048] Figure 17 This is a schematic diagram of the structure of the first rotating housing in an embodiment of the spin-pressed self-locking, weld-free, quick-connect downlight of the present invention.

[0049] Figure 18This is a schematic diagram of the structure of the second rotating housing and the light guide cone housing in an embodiment of the spin-formed self-locking, weld-free quick-connect downlight of the present invention.

[0050] Figure 19 This is a schematic diagram of the stainless steel spring bracket of an embodiment of the spin-pressed self-locking, weld-free quick-connect downlight of the present invention.

[0051] In the figure, the drive assembly 100, first housing 110, positioning rib 111, first positioning rib 112, second positioning rib 113, elastic retaining ball 114, front end portion 115, limiting protrusion 116, foolproof protrusion 117, mounting post 118, limiting block 119, drive plate 120, limiting groove 121, clearance groove 122, first fastener 123, terminal block 124, second fastener 125, axial ejector pin terminal 130, and fixed end 13 1. Elastic end 132, wire outlet 140, external wire 141, axial groove 150, lamp body assembly 200, second housing 210, first spiral fastening structure 211, pressure block 212, arc-shaped hole 213, notch 214, insulating support base 220, support platform 221, buckle 222, through hole 223, insertion port 224, bending part 225, positioning protrusion 226, flat support part 227, circumferential stop part 228, hollow area 229, Light-emitting element 230, Conductive spring 240, Conductive plane 241, Flanged protrusion 242, Positioning hole 243, First folded edge 244, Extended surface 245, Second folded edge 246, Conical deep anti-glare optical cup 250, Optical element 251, Outer cover 252, Third housing 260, First elastic protrusion 261, Third fastener 262, First rotating housing 270, First scale groove 271, Spring buckle 272, Second elastic protrusion 2 73, second rotating housing 280, annular groove 281, second scale groove 282, light guide conical housing 283, stainless steel spring bracket 290, fixing plate 291, bending plate 292, side plate 293, annular spun part 300, guide groove 310, insertion section 311, guide section 312, limiting groove 313, positioning recess 314, first guide groove 315, second guide groove 316, second spiral fastening structure 320, blocking platform 321.

[0052] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0053] like Figures 1 to 19As shown, an embodiment of the present invention provides a spin-pressed self-locking, solderless, quick-connect downlight. This spin-pressed self-locking, solderless, quick-connect downlight can be applied to various indoor scenarios, suitable for home decoration scenarios such as installation in living room ceilings, corridors, bedrooms, dining rooms, balconies, and entryways, providing basic main lighting or auxiliary ambient lighting; it can also be used in commercial scenarios such as shopping malls, supermarkets, offices, hotels, office buildings, exhibition halls, conference rooms, etc., providing lighting while maintaining a simple and clean overall space. This spin-pressed self-locking, solderless, quick-connect downlight can be embedded in the ceiling, saving space and being aesthetically pleasing.

[0054] Specifically, the spun self-locking weld-free quick-connect downlight includes a drive assembly 100, a lamp body assembly 200, and an annular spun part 300.

[0055] The drive assembly 100 includes a first housing 110, a drive plate 120, and an axial ejector terminal 130. The drive plate 120 is connected to the inner side of the lower end of the first housing 110, and the first housing 110 accommodates and protects the drive plate 120. The axial ejector terminal 130 is connected to the drive plate 120 and extends downward in the axial direction, extending downward from the lower end of the first housing 110. The lower end of the first housing 110 is also provided with a positioning rib 111, the top surface of the front end portion 115 of the positioning rib 111 along the first circumferential direction is inclined downward in the first circumferential direction to form an inclined guide surface. The lower end of the first housing 110 is also provided with an elastic retaining bead 114, which can be provided on the positioning rib 111 or at other positions on the lower end of the first housing 110 other than the positioning rib 111.

[0056] The lamp assembly 200 includes a second housing 210, an insulating support 220, a light-emitting element 230, and two conductive springs 240. The light-emitting element 230 is connected to the insulating support 220, which is electrically insulating, thus improving electrical safety and reducing the possibility of short circuits. The two conductive springs 240 are separate from each other and are respectively connected to both sides of the light-emitting element 230, which can be the two poles of the light-emitting element. The two conductive springs 240 respectively form a conductive plane 241 perpendicular to the axial direction at the upper end of the insulating support 220, with the conductive plane 241 facing the side where the drive plate 120 is located. The second housing 210 covers the outside of the insulating support 220, providing protection for the insulating support 220, the light-emitting element 230, and the two conductive springs 240. The upper end of the second housing 210 is provided with a first helical fastening structure 211, which can be, for example, a complete thread or a partial thread.

[0057] The annular spun part 300 is located between the drive assembly 100 and the lamp body assembly 200, and is used to connect the drive assembly 100 and the lamp body assembly 200 to complete the overall assembly of the downlight. The upper end of the annular spun part 300 is provided with a guide groove 310, which includes an upwardly opening insertion section 311 and a guide section 312 located at the lower end of the insertion section 311. The top surface of the guide section 312 is inclined downward along the first circumferential direction. The insertion section 311 is used for the positioning rib 111 to be inserted into the guide groove 310 from top to bottom. The guide section 312 cooperates with the inclined front end portion 115 of the positioning rib 111. The upper end of the annular spun part 300 is also provided with a positioning recess 314, which is used to cooperate with the elastic retaining ball 114.

[0058] The lower end of the annular spun member 300 is provided with a second spiral fastening structure 320, which may be a complete thread or a partial thread. The threads of the second spiral fastening structure 320 and the first spiral fastening structure 211 are matched correspondingly. The second spiral fastening structure 320 and the first spiral fastening structure 211 are spirally engaged and can reach a second locking position, which may be the limit position of rotation of the second spiral fastening structure 320 and the first spiral fastening structure 211. With the above structure, the degree of overlap between the annular spun member 300 and the lamp body assembly 200 is increased, and the distance between the drive assembly 100 and the lamp body assembly 200 is shortened.

[0059] When the positioning rib 111 enters the guide groove 310 from the insertion section 311, and the front end portion 115 of the positioning rib 111 moves downward along the guide section 312 to the first locking position, the elastic retaining bead 114 engages with the positioning recess 314, locking the annular spun part 300 and the drive assembly 100, forming a circumferential anti-reverse locking structure. The first locking position can be the extreme position where the front end portion 115 engages with the guide section 312. Since both the front end portion 115 and the guide groove 310 are inclined downward along the first circumferential direction, when the front end portion 115 is inserted into the guide groove 310 and moves along the guide groove 310, the degree of overlap between the annular spun part 300 and the drive assembly 100 increases, and the distance between the drive assembly 100 and the lamp body assembly 200 is shortened. As the position between the annular spinning member 300, the drive assembly 100, and the lamp body assembly 200 shortens, the axial ejector terminal 130 also moves relative to the conductive plane 241, eventually causing the axial ejector terminal 130 to contact the conductive plane 241.

[0060] As can be seen from the above, the spin-formed self-locking quick-connect downlight of this embodiment uses an annular spin-formed part 300 to connect the drive assembly 100 and the lamp body assembly 200. Compared with the existing structure that uses multiple threaded fasteners or glue to connect the drive and the lamp body, which has problems of complicated assembly and many fasteners, the assembly connection structure of this embodiment requires fewer parts, is easy to install, and can be quickly installed without tools.

[0061] In this embodiment, the drive assembly 100, the annular spun part 300, and the lamp body assembly 200 are arranged coaxially, with adjacent pairs spirally inclined and spun together for locking. The assembly structure adopts a spiral guide, screw-lock, and circumferential anti-reverse assembly structure, which can be well fixed axially, has high structural strength, and will not fall apart or loosen during vehicle transportation. Compared with the straight-insertion snap-fit ​​assembly structure in the prior art, it can better prevent loosening, especially axial loosening, and has better sealing performance, moisture resistance and corrosion resistance, overcoming the problem of easy loosening in the plug-in structure of the prior art.

[0062] Meanwhile, the solderless conduction of current is achieved through the physical compression of the conductive plane 241 of the axial ejector terminal 130 and the conductive spring 240, avoiding the risk of fire from poor soldering and ensuring high electrical safety. Furthermore, the axial compression elastic deformation contact between the axial ejector terminal 130 and the conductive spring 240 provides better resistance to high and low temperature cycling deformation, more stable contact, better heat dissipation, and lower temperature rise compared to the radial contact or column-holding structures in existing technologies. In addition, the use of an insulating support 220 to support the conductive spring 240 provides good insulation protection, further improving electrical safety. This embodiment of the spin-forming self-locking solderless quick-connect downlight has high assembly efficiency, is suitable for mass production on assembly lines, and helps reduce production costs.

[0063] Before assembling the drive assembly 100, the annular spun part 300 and the lamp body assembly 200, the drive assembly 100 and the lamp body assembly 200 can be assembled separately.

[0064] In some examples, the second spiral fastening structure 320 is inclined downward along the first circumferential direction. When the drive assembly 100 rotates relative to the lamp body assembly 200 along the first circumferential direction, or when the lamp body assembly 200 rotates relative to the drive assembly 100 along a second circumferential direction opposite to the first circumferential direction, the positioning rib 111 moves along the guide section 312 to the first locking position, while the first spiral fastening structure 211 moves along the second spiral fastening structure 320 to the second locking position, thereby achieving linkage locking of the drive assembly 100, the annular spinning member 300, and the lamp body assembly 200. This also prevents the annular spinning member 300 from locking one of the drive assembly 100 or the lamp body assembly 200 while the other is prone to loosening. The first circumferential direction can be clockwise, and the second circumferential direction can be counterclockwise; or, the first circumferential direction can be counterclockwise, and the second circumferential direction can be clockwise.

[0065] In some examples, there can be 2 to 4 positioning ribs 111, distributed circumferentially at the lower end of the first housing 110, thereby achieving a stable circumferential connection. There can be 2 to 4 elastic retaining beads 114, making the circumferential locking more secure. The positioning ribs 111 can include a first positioning rib 112 and a second positioning rib 113 distributed circumferentially at the lower end of the first housing 110, with the circumferential dimension of the first positioning rib 112 being smaller than that of the second positioning rib 113. The guide groove 310 includes a first guide groove 315 and a second guide groove 316 distributed circumferentially at the upper end of the annular spun part 300. The first guide groove 315 is used to cooperate with the first positioning rib 112, and the second guide groove 316 is used to cooperate with the second positioning rib 113, realizing two sets of spun-fit structures. The circumferential dimension of the insertion section 311 of the first guide groove 315 is larger than the circumferential dimension of the first positioning rib 112 and smaller than the circumferential dimension of the second positioning rib 113. This allows the first positioning rib 112 to enter the first guide groove 315 along the insertion section 311, but the second positioning rib 113 cannot enter the first guide groove 315; instead, the second positioning rib 113 can only enter the second guide groove 316. This foolproof structure ensures that the annular spinning member 300 and the drive assembly 100 cannot be reversed, guaranteeing accurate electrode connection.

[0066] In some examples, the first positioning rib 112 and the second positioning rib 113 respectively also include a limiting protrusion 116 located on the rear side of the front end portion 115 along the first circumferential direction, and an elastic retaining ball 114 is located on the limiting protrusion 116 to ensure the structural strength at the elastic retaining ball 114. A limiting groove 313 is also provided between the insertion section 311 and the guide section 312. The limiting groove 313 cooperates with the limiting protrusion 116 and accommodates the limiting protrusion 116. A positioning recess 314 is located in the limiting groove 313. The positioning recess 314 is located at the thin wall of the annular spun part 300. The area around the positioning recess 314 can be elastically deformed to facilitate the entry of the elastic retaining ball 114 into the positioning recess 314.

[0067] In some examples, the lower end of the first housing 110 includes axial grooves 150 on both sides of the front end portion 115 and on both sides of the limiting protrusion 116. The axial grooves 150 allow the front end portion 115 and the limiting protrusion 116 to move radially and return to their original positions with a certain degree of elasticity, which facilitates the entry of the elastic retaining bead 114 into the positioning recess 314. The elastic retaining bead 114 may be a protrusion integrally provided on the limiting protrusion 116, or the elastic retaining bead 114 may be a separate bead-shaped piece separate from the limiting protrusion 116. The limiting protrusion 116 may have a recess-shaped portion, into which the bead-shaped piece is inserted. A spring is provided between the elastic retaining bead 114 and the recess-shaped portion.

[0068] In some examples, the front end portion 115 and the limiting protrusion 116 of the first positioning rib 112 together form the circumferential dimension of the first positioning rib 112. The circumferential dimension of the first positioning rib 112 can be equal to the circumferential dimension of the front end portion 115 plus the circumferential dimension of the limiting protrusion 116, plus the circumferential dimension of the axial groove 150 between the two.

[0069] In some examples, the second positioning rib 113 further includes a foolproof protrusion 117 located on the rear side of the limiting protrusion 116 along the first circumferential direction. The front end portion 115 of the second positioning rib 113, the limiting protrusion 116, and the foolproof protrusion 117 together form the circumferential dimension of the first positioning rib 112. The circumferential dimension of the second positioning rib 113 can be equal to the circumferential dimension of the front end portion 115 plus the circumferential dimension of the limiting protrusion 116 plus the circumferential dimension of the foolproof protrusion 117, plus the circumferential dimension of the axial groove 150 between the two adjacent portions. The foolproof protrusion 117 distinguishes the second positioning rib 113 from the first positioning rib 112.

[0070] In some examples, the positioning rib 111 is located on the outer wall of the lower end of the first housing 110 to prevent the positioning rib 111 from affecting the installation of the drive plate 120. The guide groove 310 is located on the inner wall of the upper end of the annular spun part 300 so that the upper end of the annular spun part 300 can cover the lower end of the first housing 110, improving the appearance.

[0071] In some examples, the second spiral fastening structure 320 is disposed on the outer wall of the lower end of the annular spun member 300, and the first spiral fastening structure 211 is disposed on the inner wall of the upper end of the second housing 210, such that the upper end of the second housing 210 covers the lower end of the annular spun member 300.

[0072] In some examples, the second housing 210 includes a stop at the end of the first helical fastening structure 211, or the annular spinning member 300 includes a stop 321 at the end of the second helical fastening structure 320, the stop 321 being able to limit the locking limits of the first helical fastening structure 211 and the second helical fastening structure 320.

[0073] In some examples, the positioning recess 314 is a through hole, through which the elastic retaining bead 114 can be checked to see if it is engaged in the positioning recess 314, and through which the elastic retaining bead 114 can be pushed out of the positioning recess 314, making it easy to unlock and disassemble.

[0074] In some examples, the first housing 110 has a mounting post 118 in the middle, and the drive plate 120 is connected to the mounting post 118 by a first fastener 123, which may be a screw, for example, to position the drive plate 120.

[0075] In some examples, a limiting block 119 is provided on the inner side of the lower end of the first housing 110, and a limiting groove 121 that cooperates with the limiting block 119 is provided on the drive plate 120 to realize the installation position of the drive plate 120 and prevent the axial ejector terminal 130 and the conductive spring 240 from being misaligned due to the deflection of the drive plate 120.

[0076] In some examples, the drive plate 120 has a relief groove 122 at the position corresponding to the elastic ball 114 to allow partial deformation of the first housing 110 corresponding to the elastic ball 114, so as to facilitate the movement of the elastic ball 114 within the annular spinning member 300.

[0077] In some examples, the upper end of the first housing 110 is provided with a wire outlet hole 140, and the drive assembly 100 also includes a terminal block 124 and an external wire 141. The terminal block 124 is located on the drive plate 120 and close to the wire outlet hole 140 for easy wiring. The end of the external wire 141 is connected to the terminal block 124 by a second fastener 125, such as a screw.

[0078] In some examples, the fixed end 131 of the axial ejector terminal 130 is connected to the drive plate 120, for example, by pre-soldering. The elastic end 132 of the axial ejector terminal 130 is a spherical conductive head, which facilitates contact with the conductive spring 240 and reduces gaps at the contact point. The elastic end 132 can elastically extend and retract towards the fixed end 131, which facilitates the elastic end 132 abutting against the conductive spring 240.

[0079] In some examples, the insulating support 220 has a support platform 221 in the middle and a buckle 222 above the support platform 221. The light-emitting element 230 is located between the support platform 221 and the buckle 222 to achieve the positioning of the light-emitting element 230. The support platform 221 has an axial through hole 223 for the light emitted by the light-emitting element 230 to pass through.

[0080] In some examples, the lower ends of both sides of the insulating support 220 are provided with insertion ports 224, and the first end of the conductive spring 240 forms a flange protrusion 242. The flange protrusion 242 extends into the insertion port 224 and contacts the light-emitting element 230, which facilitates electrical contact between the conductive spring 240 and the light-emitting element 230.

[0081] In some examples, the insulating support base 220 has a bend 225 in the middle of both sides, and a positioning protrusion 226 on the bend 225; the conductive spring piece 240 has a positioning hole 243 in the middle, and the positioning hole 243 cooperates with the positioning protrusion 226 so that the conductive spring piece 240 can be better positioned on the insulating support base 220.

[0082] In some examples, the upper end of the insulating support 220 is provided with a planar support portion 227 and a circumferential stop portion 228 along a first circumferential direction. A hollow region 229 is formed between the planar support portion 227 and the circumferential stop portion 228, and the hollow region 229 is located above the bent portion 225. The second end of the conductive spring piece 240 includes a conductive plane 241 formed on the hollow region 229, a first folded edge 244 provided at the first end of the conductive plane 241 and abutting against the circumferential stop portion 228, an extension surface 245 provided at the second end of the conductive plane 241 and extending to the planar support portion 227, and a second folded edge 246 bent relative to the extension surface 245 and located on one side of the planar support portion 227. The hollow region 229 allows the conductive plane 241 to deform downward to better withstand the compression of the axial ejector terminal 130. The planar support portion 227 and the circumferential stop portion 228 can better support the conductive plane 241 and prevent the conductive plane 241 from being excessively deformed. The extension surface 245 extends the conductive distance and can also contact the axial ejector terminal 130 to achieve conductivity, allowing the ejector terminal 130 to be slightly offset. The first folded edge 244 is used to improve the structural stability of the conductive plane 241, and the second folded edge 246 is used to improve the connection stability between the conductive spring 240 and the insulating support 220. The two conductive springs 240 can be two sets of opposing symmetrically bent L-shaped integral alloy springs, which rely on their own elastic pre-tightening to clamp the insulating support 220 to form a conductive circuit. There are no wire wrapping, soldering, or riveting fixation inside the lamp body assembly 200. The two poles are connected by mechanical elastic extrusion, which simplifies the process and avoids the hidden dangers caused by poor soldering.

[0083] In some examples, the lamp assembly 200 also includes a tapered deep anti-glare optical cup 250 and a third housing 260. The tapered deep anti-glare optical cup 250 includes an optical element 251 and an outer cover 252 disposed outside the optical element 251, which protects the optical element 251. The tapered deep anti-glare optical cup 250 may include an elongated, deep, enclosed stepped light-shielding optical cavity, which intercepts lateral stray light through multiple light-blocking structures, reducing the glare index and minimizing stray light leakage. The upper end of the optical element 251 is inserted into the insulating support 220, and the lower end of the optical element 251 is snapped into the outer cover 252. The upper end of the outer cover 252 is snapped into the insulating support 220, thus fixing the optical element 251. The lower end of the outer cover 252 is adjacent to the inner wall of the third housing 260, reducing gaps. At least one of the insulating support 220 and the outer cover 252 is connected to at least one of the second housing 210 and the third housing 260 to fix the insulating support 220. The second housing 210 has a pressure block 212 in the middle and two arc-shaped holes 213 around the pressure block 212. The upper end of the third housing 260 is connected to the lower end of the second housing 210 by a third fastener 262, which can be a screw. The pressure block 212 connects to the back of the light-emitting element 230 to prevent the light-emitting element 230 from loosening. The conductive plane 241 and the extension surface 245 are located within the arc-shaped holes 213, which facilitates the separation of the two conductive spring pieces 240. The second housing 210 can be made of a heat-dissipating material to facilitate heat dissipation of the light-emitting element 251.

[0084] In some examples, the lamp assembly 200 further includes a first rotating housing 270, which is located on the outer side of the lower end of the third housing 260. The left and right ends of the first rotating housing 270 are hinged to the lower end of the third housing 260, allowing the first rotating housing 270 to rotate relative to the third housing 260. The top of the rear end of the first rotating housing 270 has a plurality of laterally extending first scale grooves 271. The lower end of the third housing 260 has a first elastic protrusion 261, which engages with at least one first scale groove 271. When the first rotating housing 270 rotates relative to the third housing 260 to a specific angle, the first elastic protrusion 261 engages and locks with the corresponding first scale groove 271. When the first elastic protrusion 261 engages with the lowermost first scale groove 271, the opening of the first rotating housing 270 is axially downward, and the top of the rear end of the first rotating housing 270 is recessed between the third housing 260 and the second housing 210, resulting in a more aesthetically pleasing appearance. When the first elastic protrusion 261 engages with the first scale groove 271 located at the top, the opening of the first rotating housing 270 deviates from the axial direction, and the front end of the second housing 210 is provided with a notch 214 to accommodate the first rotating housing 270, thereby realizing the change of the light emission direction.

[0085] In some examples, the front end of the third housing 260 is provided with scale lines that are exposed from the notch 214, so as to facilitate the adjustment of the rotation angle of the first rotating housing 270 according to the scale lines.

[0086] In some examples, the lamp body assembly 200 further includes a second rotating housing 280, which is located outside the lower end of the first rotating housing 270. The inner peripheral wall of the second rotating housing 280 has a circumferentially extending annular groove 281, and the outer peripheral wall of the first rotating housing 270 has a plurality of circumferentially distributed spring clips 272. The spring clips 272 engage with the annular groove 281, allowing the second rotating housing 280 to rotate circumferentially relative to the first rotating housing 270, which facilitates adjustment of the circumferential position of the stainless steel spring clip bracket 290, etc. The inner peripheral wall of the second rotating housing 280 also has an axially extending second scale groove 282, and the lower end of the first rotating housing 270 also has a second elastic protrusion 273. The second elastic protrusion 273 engages with at least one second scale groove 282 to position the second rotating housing 280 when rotated to a specific angle.

[0087] In some examples, the lamp assembly 200 also includes a light guide conical shell 283, the upper end of which is snapped onto the lower part of the first rotating shell 270, and the lower end of which is adjacent to the lower end of the inner peripheral wall of the second rotating shell 280. The light guide conical shell 283 can guide light and makes the lamp assembly 200 more aesthetically pleasing when viewed from the second rotating shell 280.

[0088] In some examples, the lower end of the second rotating housing 280 extends outward to form a retaining ring, which is used to lock onto the first side of the ceiling. The lamp body assembly 200 also includes two stainless steel spring clip brackets 290, which are respectively disposed on both sides of the second rotating housing 280. The stainless steel spring clip brackets 290 are used to lock onto the other side of the ceiling, and their elasticity can adapt to the flexible clamping installation of ceiling openings of different thicknesses. The stainless steel spring clip bracket 290 includes an integrally formed fixing plate 291, a bending plate 292, and a side plate 293. The fixing plate 291 is connected to the outer peripheral wall of the second rotating housing 280 to fix the stainless steel spring clip bracket 290. The bending plate 292 is disposed at the lower end of the fixing plate 291 and protrudes upward and then extends downward in a direction away from the fixing plate 291. The bending plate 292 is mainly used to hold the other side of the ceiling. Side plates 293 are provided on both sides of the upper end of the fixed plate 291 and extend downward away from the second rotating housing 280. For thick ceilings, side plates 293 can be locked in the holes in the ceiling to improve the radial contact tightness and prevent the downlight from rotating. For thin ceilings, side plates 293 can also be locked on the other side of the ceiling to play a better locking role.

[0089] Finally, it should be emphasized that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spin-formed self-locking, solderless, quick-connect downlight, characterized in that... Includes drive components, lamp body components, and annular spun parts; The drive assembly includes a first housing, a drive plate, and an axial ejector terminal; the drive plate is connected to the inner side of the lower end of the first housing, and the axial ejector terminal is connected to the drive plate and extends downward along the axial direction; the lower end of the first housing is also provided with a positioning rib, the top surface of the front end portion of the positioning rib along the first circumferential direction is inclined downward along the first circumferential direction, and the lower end of the first housing is also provided with an elastic retaining ball. The lamp assembly includes a second housing, an insulating support base, a light-emitting element, and two conductive spring contacts; the light-emitting element is connected to the insulating support base; the two conductive spring contacts are separated from each other, respectively connected to both sides of the light-emitting element, and form a conductive plane perpendicular to the axial direction at the upper end of the insulating support base; the second housing covers the outside of the insulating support base, and the upper end of the second housing is provided with a first spiral fastening structure; The lower end of the annular spinning member is provided with a second spiral fastening structure, which is spirally engaged with the first spiral fastening structure and can reach a second locking position. The upper end of the annular spinning member is provided with a guide groove, the guide groove includes an upwardly open insertion section and a guide section located at the lower end of the insertion section, the top surface of the guide section is inclined downward along the first circumferential direction; the upper end of the annular spinning member is also provided with a positioning recess; when the positioning rib moves downward along the guide section to the first locking position, the elastic ball engages with the positioning recess, and the axial ejector pin terminal contacts the conductive plane.

2. The spin-formed self-locking, solderless quick-connect downlight according to claim 1, characterized in that... The second spiral fastening structure is inclined downward along the first circumferential direction; When the driving component rotates relative to the lamp body assembly along a first circumferential direction or the lamp body assembly rotates relative to the driving component along a second circumferential direction opposite to the first circumferential direction, the positioning rib moves along the guide section to a first locking position, and the first spiral fastening structure moves along the second spiral fastening structure to a second locking position.

3. A spin-formed self-locking, weld-free quick-connect downlight according to claim 1 or 2, characterized in that... The positioning ribs include a first positioning rib and a second positioning rib distributed circumferentially at the lower end of the first housing, wherein the circumferential dimension of the first positioning rib is smaller than the circumferential dimension of the second positioning rib. The guide groove includes a first guide groove and a second guide groove distributed circumferentially at the upper end of the annular spun part. The first guide groove is used to cooperate with the first positioning rib, and the second guide groove is used to cooperate with the second positioning rib. The circumferential dimension of the insertion section of the first guide groove is greater than the circumferential dimension of the first positioning rib and less than the circumferential dimension of the second positioning rib.

4. A spin-formed self-locking, weld-free quick-connect downlight according to claim 3, characterized in that... The first positioning rib and the second positioning rib each further include a limiting protrusion located on the rear side of the front end portion along the first circumferential direction, and the elastic retaining ball is located on the limiting protrusion; a limiting groove is also provided between the insertion section and the guide section, the limiting groove cooperates with the limiting protrusion, and the positioning recess is located in the limiting groove; The lower end of the first housing includes axial grooves on both sides of the front end portion and on both sides of the limiting protrusion; The front end portion and the limiting protrusion of the first positioning rib together form the circumferential dimension of the first positioning rib; The second positioning rib also includes a foolproof protrusion located on the rear side of the limiting protrusion along the first circumferential direction. The front end portion of the second positioning rib, the limiting protrusion, and the foolproof protrusion together form the circumferential dimension of the first positioning rib.

5. A spin-formed self-locking, solderless quick-connect downlight according to claim 1 or 2, characterized in that: The positioning rib is located on the outer wall of the lower end of the first housing, and the guide groove is located on the inner wall of the upper end of the annular spun part. And / or, the second spiral fastening structure is disposed on the outer wall of the lower end of the annular spun part, and the first spiral fastening structure is disposed on the inner wall of the upper end of the second housing. And / or, the positioning recess is a through hole; And / or, the second housing includes a blocking platform at the end of the first helical fastening structure, or the annular spinning member includes a blocking platform at the end of the second helical fastening structure.

6. A spin-formed self-locking, solderless, quick-connect downlight according to claim 1 or 2, characterized in that: The first housing has a mounting post in the middle, and the drive plate is connected to the mounting post by a first fastener; A limiting block is provided on the inner side of the lower end of the first housing, and a limiting groove is provided on the drive plate to cooperate with the limiting block; The drive plate is provided with a clearance groove at the position corresponding to the elastic ball; The upper end of the first housing is provided with a wire outlet hole. The drive assembly also includes a terminal block and an external wire. The terminal block is disposed on the drive plate and close to the wire outlet hole. The external wire passes through the wire outlet hole. The end of the external wire is connected to the terminal block by a second fastener. The fixed end of the axial ejector terminal is connected to the drive plate, and the elastic end of the axial ejector terminal is a spherical conductive head, which can elastically extend and retract toward the fixed end.

7. A spin-formed self-locking, solderless, quick-connect downlight according to claim 1 or 2, characterized in that: The insulating support base has a support platform in the middle and a buckle above the support platform. The light-emitting element is located between the support platform and the buckle. The support platform has an axial through hole for the light emitted by the light-emitting element to pass through. The insulating support base has insertion ports at the lower ends of both sides, and the first end of the conductive spring sheet forms a flanged protrusion, which extends into the insertion port and contacts the light-emitting element. The insulating support base has a bent portion in the middle of both sides, and a positioning protrusion is provided on the bent portion; the conductive spring sheet has a positioning hole in the middle, and the positioning hole cooperates with the positioning protrusion. The upper end of the insulating support base is provided with a planar support portion and a circumferential stop portion along the first circumferential direction. A hollow area is formed between the planar support portion and the circumferential stop portion. The hollow area is located above the bent portion. The second end of the conductive spring includes a conductive plane formed on the hollow area, a first folded edge disposed at the first end of the conductive plane and abutting against the circumferential stop portion, an extension surface disposed at the second end of the conductive plane and extending to the planar support portion, and a second folded edge bent relative to the extension surface and located on one side of the planar support portion.

8. A spin-formed self-locking, solderless quick-connect downlight according to claim 7, characterized in that: The lamp assembly further includes a conical deep anti-glare optical cup and a third housing. The conical deep anti-glare optical cup includes an optical element and an outer cover disposed outside the optical element. The upper end of the optical element is inserted into the insulating support base, and the lower end of the optical element is snapped into the outer cover. The upper end of the outer cover is snapped into the insulating support base, and the lower end of the outer cover is adjacent to the inner wall of the third housing. At least one of the insulating support base and the outer cover is connected to at least one of the second housing and the third housing. The second housing has a pressure block in the middle and two arc-shaped holes around the pressure block. The upper end of the third housing is connected to the lower end of the second housing by a third fastener. The pressure block is connected to the back of the light-emitting element. The conductive plane and the extended surface are located in the arc-shaped holes.

9. A spin-formed self-locking, solderless quick-connect downlight according to claim 8, characterized in that: The lamp assembly further includes a first rotating housing, which is disposed on the outer side of the lower end of the third housing, and the left and right ends of the first rotating housing are hinged to the lower end of the third housing; the top of the rear end of the first rotating housing is provided with a plurality of horizontally extending first scale grooves, and the lower end of the third housing is provided with a first elastic protrusion, which cooperates with at least one of the first scale grooves; the front end of the third housing is provided with scale lines, which are exposed from the notch; When the first elastic protrusion engages with the first scale groove located at the bottom, the opening of the first rotating housing is axially downward, and the top of the rear end of the first rotating housing is located between the third housing and the second housing; when the first elastic protrusion engages with the first scale groove located at the top, the opening of the first rotating housing is deviated from the axial direction, and the front end of the second housing is provided with a notch to accommodate the first rotating housing.

10. A spin-formed self-locking, weld-free quick-connect downlight according to claim 9, characterized in that: The lamp body assembly further includes a second rotating housing, which is disposed on the outer side of the lower end of the first rotating housing; the inner peripheral wall of the second rotating housing is provided with a circumferentially extending annular groove, and the outer peripheral wall of the first rotating housing is provided with a plurality of circumferentially distributed spring buckles, which cooperate with the annular groove; the inner peripheral wall of the second rotating housing is also provided with an axially extending second scale groove, and the lower end of the first rotating housing is also provided with a second elastic protrusion, which cooperates with at least one of the second scale grooves; The lamp assembly also includes a light guide cone shell, the upper end of which is snapped into the lower part of the first rotating shell; the lower end of which is adjacent to the lower end of the inner peripheral wall of the second rotating shell. The lower end of the second rotating housing extends outward, and the lamp body assembly also includes two stainless steel spring clip brackets, which are respectively disposed on both sides of the second rotating housing. The stainless steel spring clip bracket includes a fixing plate, a bending plate, and a side plate. The fixing plate is connected to the outer peripheral wall of the second rotating housing. The bending plate is disposed at the lower end of the fixing plate and protrudes upward and then extends downward in a direction away from the fixing plate. The side plates are disposed on both sides connected to the upper end of the fixing plate and extend downward in a direction away from the second rotating housing.

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