Lamp

Abstract

A lamp (100), comprising: a housing (10) and a photoelectric assembly (30) accommodated in the housing (10). The housing (10) is provided with a bottom wall (101) arranged facing the photoelectric assembly (30) and a side wall (102) vertically extending downward from the peripheral edge of the bottom wall (101). The bottom wall (101) is provided with a boss (11) protruding toward the photoelectric assembly (30). An annular groove (12) is formed between the boss (11) and the side wall of the housing (10). When mounted in the housing (10), a part of the photoelectric assembly (30) abuts against the boss (11), while the other part extends and suspends below the annular groove (12) and is vertically spaced from the annular groove (12).

Description

lamps

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 25, 2023, with application number 202323537202.3 and utility model name "Lamp". The entire contents of the Chinese patent application are incorporated herein by reference. Technical Field

[0003] The invention relates to a lamp, belonging to the technical field of lighting. Background Art

[0004] Existing downlights require additional heat dissipation structures, which results in a higher height and places greater demands on the installation environment. Simply lowering the height of the downlight would not meet safety regulations and pose a safety hazard.

[0005] In view of this, it is indeed necessary to improve the existing lamps to solve the above problems. Summary of the Invention

[0006] An object of the present invention is to provide a lamp which can enhance heat dissipation effect and ensure sufficient creepage distance.

[0007] To achieve the above-mentioned purpose, the present invention provides a lamp, comprising: a shell and a photoelectric component housed in the shell, the shell being provided with a bottom wall facing the photoelectric component and a side wall extending vertically downward from the outer peripheral edge of the bottom wall, the bottom wall being provided with a boss protruding toward the photoelectric component, an annular groove being formed between the boss and the side wall of the shell, and when the photoelectric component is installed in the shell, a part of the boss is in contact with the boss, and the other part extends to overhang the outside of the annular groove and leaves a distance between the side wall and the annular groove in the extension direction of the side wall.

[0008] As a further improvement of the present invention, a first mounting hole is formed on the boss, and the optoelectronic component is fixed to the housing by a first fastener passing through the first mounting hole.

[0009] As a further improvement of the present invention, the optoelectronic component includes a substrate, a light source module and a power module. The light source module and the power module are both integrated on the substrate, and the power module is arranged around the outside of the light source module.

[0010] As a further improvement of the present invention, the orthographic projection of the power module on the bottom wall of the housing overlaps with the annular groove, and the orthographic projection of the light source module on the bottom wall of the housing overlaps with the boss.

[0011] As a further improvement of the present invention, the lamp also includes a face ring, which is arranged at the opening of the shell and assembled and fixed with the shell. The side of the face ring facing the shell is provided with a buckle and a second mounting hole. The buckle is used to limit the shell in the up and down directions. The shell and the face ring are fixedly connected by a second fastener passing through the second mounting hole.

[0012] As a further improvement of the present invention, the lamp also includes a diffuser plate accommodated in the face ring, and a first abutment portion is provided on the side of the face ring facing the shell. The first abutment portion is arranged in a ring shape and is located on the inner side of the second mounting hole, and the diffuser plate is overlapped and supported on the first abutment portion.

[0013] As a further improvement of the present invention, the lamp also includes a reflector, which has a light inlet and a light outlet, the light inlet abuts the photoelectric component, and the light source module is located on the inner side of the light inlet, the power supply module is located on the outer side of the light inlet, and the light outlet abuts the face ring.

[0014] As a further improvement of the present invention, a wire passing hole is provided on the shell, and the lamp also includes an electric wire and a wire locking buckle connected to the photoelectric component, one end of the wire locking buckle is connected to the photoelectric component, and the other end passes through the wire passing hole, so that the electric wire extends to the outside of the shell after passing through the wire locking buckle and the wire passing hole.

[0015] As a further improvement of the present invention, the wire passing hole is opened on the bottom wall and is located in the annular groove, and the wire locking buckle passes through the wire passing hole and partially extends into the annular groove.

[0016] As a further improvement of the present invention, the housing is a metal heat dissipation housing.

[0017] The beneficial effects of the present invention are as follows: by providing a boss on the bottom wall of the housing and allowing a portion of the optoelectronic assembly to abut against the boss, the optoelectronic assembly can dissipate heat directly through the housing, thereby increasing the overall heat dissipation area of ​​the lamp and improving the heat dissipation environment of the lamp. Furthermore, by forming an annular groove between the boss and the side wall of the housing, allowing another portion of the optoelectronic assembly to overhang below the annular groove, and leaving a gap between the optoelectronic assembly and the annular groove in the vertical direction, the electrical distance and creepage distance between the housing and the optoelectronic assembly are increased, thereby meeting safety regulations while reducing the overall height of the lamp, effectively ensuring safety for end users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic structural diagram of a lamp according to the present invention.

[0019] FIG2 is an exploded view of the lamp shown in FIG1 .

[0020] FIG3 is a schematic structural diagram of the housing in FIG2 .

[0021] FIG4 is an assembly diagram of the optoelectronic components, wires, and wire lock buckles in FIG2 .

[0022] FIG5 is a schematic structural diagram of the face ring in FIG2 .

[0023] FIG6 is a schematic structural diagram of the reflector in FIG2 .

[0024] FIG. 7 is a cross-sectional view of the lamp shown in FIG. 1 .

[0025] FIG8 is an enlarged view of the circle in FIG7 . DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0028] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0029] As shown in Figures 1 and 2, the present invention discloses a lamp 100, which is preferably a downlight, including a shell 10 and a face ring 20 arranged at the opening of the shell 10. An elastic member 16 is provided on the outer side of the face ring 20. The elastic member 16 is preferably a torsion spring and is provided in pair. The elastic member 16 is used to install and fix the lamp 100.

[0030] The lamp 100 further includes a photoelectric component 30 and a reflector 40 located between the housing 10 and the face ring 20 . The photoelectric component 30 is housed in the housing 10 for emitting light, which is then focused by the reflector 40 and emitted through the face ring 20 .

[0031] As shown in FIG3 , the housing 10 is provided with a bottom wall 101 facing the optoelectronic component 30 and a side wall 102 extending vertically downward from the outer peripheral edge of the bottom wall 101. The side wall 102 is arranged around the bottom wall 101. The bottom wall 101 is provided with a boss 11 protruding toward the optoelectronic component 30. An annular groove 12 is formed between the boss 11 and the side wall 102. When the optoelectronic component 30 is installed in the housing 10, a portion of the housing 10 abuts against the boss 11, while the other portion extends to overhang below the annular groove 12 and leaves a gap between the housing 10 and the annular groove 12 in the vertical direction (i.e., the direction in which the side wall 102 extends). The setting of this gap increases the electrical distance and creepage distance between the housing 10 and the optoelectronic component 30, allowing the lamp 100 to meet safety requirements while reducing its overall height, effectively ensuring the safety of end users. Preferably, the gap is greater than 1 mm.

[0032] The boss 11 defines a first mounting hole 13, through which the optoelectronic assembly 30 is secured to the housing 10 via a first fastener 131. Specifically, the first mounting hole 13 defines a first fastener 131, which passes through the boss 11 and the optoelectronic assembly 30, respectively, to secure the boss 11 to the optoelectronic assembly 30 and ensure that the boss 11 and the optoelectronic assembly 30 are in contact with each other, thereby facilitating heat dissipation from the optoelectronic assembly 30 through the housing 10.

[0033] The optoelectronic assembly 30 includes a substrate 31, a light source module 32, and a power module 33. The first fastener 131 is used to secure the boss 11 to the substrate 31. The power module 33 is used to power the light source module 32. The light source module 32 includes a plurality of LED units arranged in an array to provide illumination. Both the light source module 32 and the power module 33 are integrated on the substrate 31. The power module 33 is disposed around the light source module 32 and is located radially outward from the light source module 32.

[0034] It is understood that the housing 10 is made of metal, preferably a metal heat dissipation housing. Of course, heat sinks may also be provided on the outside of the housing 10 to further enhance heat dissipation. Furthermore, to ensure electrical safety, the first fastener 131 is a plastic rivet, the face ring 20 and the reflector 40 are both plastic, and the substrate 31 is made of FR-4 insulating material to prevent electrical conduction between the housing 10 and the housing.

[0035] Furthermore, the base plate 31 extends radially along the housing 10 to the outer periphery of the boss 11. That is, the diameter of the base plate 31 is larger than the diameter of the boss 11. This allows a portion of the optoelectronic component 30 to abut against the boss 11, while another portion extends into the annular groove 12. Specifically, because the boss 11 protrudes toward the base plate 31 and is located at the center of the bottom wall 101, the annular groove 12 is formed on the outer periphery of the boss 11. The base plate 31 extends below the annular groove 12, with a gap between the base plate 31 and the annular groove 12.

[0036] In this embodiment, the power module 33 is disposed on the base plate 31 at a position corresponding to the annular groove 12 and is suspended below the annular groove 12, thereby increasing the electrical distance and creepage distance between the power module 33 and the housing 10. Specifically, the orthographic projection of the power module 33 on the bottom wall 101 of the housing 10 overlaps with the annular groove 12, and the orthographic projection of the light source module 32 on the bottom wall 101 of the housing 10 overlaps with the boss 11. Heat from the light source module 32 can be dissipated through the boss 11.

[0037] It should be noted that: 1. Since the substrate 31 is made of insulating material, the portion corresponding to the light source module 32 is set to fit with the boss 11, which can increase the heat dissipation efficiency of the light source module 32. 2. Since the power supply module 33 is composed of multiple live components and is arranged on the periphery of the substrate 31, in order to ensure that the electrical distance and creepage distance between the live components and the housing 10 meet the safety requirements, it is necessary to leave a spacing of more than 1 mm between the power supply module 33 and the annular groove 12, so that the spacing between the live components and the housing 10 is enlarged, thereby increasing the electrical distance and creepage distance between the live components and the housing 10, which can effectively ensure the safety of end users. 3. The light source module 32 and the power supply module 33 are integrated on the substrate 31 to form an integrated optoelectronic structure, which effectively reduces the height of the lamp 100, making it suitable for low-height ceiling environments or some environments with limited lamp height.

[0038] As shown in Figures 3 and 4, the housing 10 is further provided with a wire hole 14, which is opened on the bottom wall 101 and located in the annular groove 12. The lamp 100 also includes a wire 105 connected to the optoelectronic component 30 and a wire lock 141. One end of the wire lock 141 is connected to the optoelectronic component 30, and the other end passes through the wire hole 14, so that the wire 105 passes through the wire lock 141 and the wire hole 14 and extends to the outside of the housing 10. Specifically, the wire lock 141 has an extension portion 142 and a protrusion 143. The extension portion 142 is clamped between the bottom wall 101 and the base plate 31 and extends along the surface of the annular groove 12 into the annular groove 12. The protrusion 143 is received in the wire hole 14 to position the wire 105.

[0039] As shown in Figures 2 and 5, to further improve the lighting effect, the face ring 20 also accommodates a diffuser plate 50. The face ring 20 is provided with a buckle 21, a first abutting portion 22, a second abutting portion 24, and a second mounting hole 23 on the side facing the housing 10. The first abutting portion 22 is annular and located at the innermost side of the face ring 20, and the diffuser plate 50 is supported on the first abutting portion 22. The second abutting portion 24 is provided on the periphery of the first abutting portion 22 and is provided with a mounting post 25 protruding toward the housing 10. The second mounting hole 23 is provided on the mounting post 25. The outer wall of the mounting post 25 is also provided with a positioning rib 251 protruding toward the first abutting portion 22.

[0040] As shown in Figures 2, 3, and 5, the face ring 20 is assembled and fixed to the housing 10. Specifically, the face ring 20 is further provided with an annular extension wall 26 protruding toward the housing 10. The buckle 21 is disposed on the extension wall 26 and near the top edge thereof, so as to be positioned close to the optoelectronic assembly 30. The extension wall 26 is also provided with a first positioning rib 261 and a second positioning rib 262. The first positioning rib 261 and the buckle 21 are spaced apart circumferentially and vertically from each other. The second positioning rib 262 protrudes inward from the inner wall surface of the extension wall 26. A fixing edge 103 is provided at the bottom edge of the housing 10, and a fixing hole 104 is defined in the fixing edge 103. When the housing 10 and the face ring 20 are assembled and fixed, the fixed edge 103 is trapped between the buckle 21 and the first positioning rib 261, thereby limiting the housing 10 in the vertical direction. The second positioning rib 262 is received in the fixing hole 104 to limit the housing 10 in the circumferential direction. Furthermore, the housing 10 and the face ring 20 are locked together by a second fastener 15 that passes through the through-hole 106 in the fixed edge 103 and the second mounting hole 23 in the mounting post 25. Preferably, the second fastener 15 is a screw, and the second mounting hole 23 is a threaded hole.

[0041] As shown in Figures 2, 5 and 6, the reflector 40 is arranged between the optoelectronic component 30 and the diffuser 50. The reflector 40 is trumpet-shaped and has a reflective surface on the inner side. The reflector 40 has a light inlet and a light outlet. The light inlet is in contact with the optoelectronic component 30, and the light source module 32 is located on the inner side of the light inlet. The power supply module 33 is located on the outer side of the light inlet, that is, the light inlet is used to separate the light source module 32 and the power supply module 33, so that the light source module 32 located on the inner side can reflect light through the reflective surface.

[0042] The light outlet abuts the face ring 20. Specifically, an extended edge 41 is provided on one side of the light outlet of the reflector 40. The extended edge 41 is provided with a positioning hole 411 corresponding to the positioning rib 251. When the reflector 40 abuts the face ring 20, the extended edge 41 is supported on the second abutting portion 24, and the positioning rib 251 is limited and accommodated in the positioning hole 411, thereby achieving the positioning of the reflector 40 in its circumferential direction.

[0043] As shown in Figures 7 and 8 , when assembling the lamp 100 of the present invention, first, the diffuser plate 50 is placed within the face ring 20 and supported on the first abutment portion 22. The reflector 40 is then placed within the face ring 20 and secured to the diffuser plate 50. The wires 105 on the optoelectronic assembly 30 are then passed through the wire lock 141 and the wire hole 14, extending to the exterior of the housing 10. The wire lock 141 is then secured within the wire hole 14. The optoelectronic assembly 30 is then press-fitted onto the wire lock 141 and secured to the housing 10 via the first fastener 131 through the first mounting hole 13, completing the assembly of the lamp body. Finally, the assembled lamp body is snap-fitted to the housing 10 and secured. At this point, the assembly of the lamp 100 is complete.

[0044] In summary, the present invention provides a boss 11 on the bottom wall 101 of the housing 10, and abuts a portion of the optoelectronic assembly 30 against the boss 11, thereby enabling the optoelectronic assembly 30 to dissipate heat directly through the housing 10. This increases the overall heat dissipation area of ​​the lamp 100 and improves the heat dissipation environment of the lamp 100. Furthermore, by forming an annular groove 12 between the boss 11 and the side wall 102 of the housing 10, and allowing the power module 33 of the optoelectronic assembly 30 to overhang below the annular groove 12, with a vertical gap between the power module 33 and the annular groove 12, the electrical distance and creepage distance between the housing 10 and the power module 33 are increased, thereby meeting safety regulations while reducing the overall height of the lamp 100 and effectively ensuring safety for end users.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A lighting fixture, comprising: A housing (10) and an optoelectronic component (30) received in the housing (10), the housing (10) being provided with a bottom wall (101) arranged facing the optoelectronic component (30) and a side wall (102) vertically extending downward from the outer peripheral edge of the bottom wall (101), a boss (11) protruding toward the optoelectronic component (30) being provided on the bottom wall (101), an annular groove (12) being formed between the boss (11) and the side wall (102) of the housing (10), when the optoelectronic component (30) is installed in the housing (10), a part thereof abuts against the boss (11), and another part extends to be suspended outside the annular groove (12) and leaves a spacing from the annular groove (12) in the extending direction of the side wall (102).

2. The luminaire according to claim 1, wherein: A first mounting hole (13) is formed in the boss (11), and the optoelectronic component (30) is fixed to the housing (10) by a first fastener (131) passing through the first mounting hole (13).

3. The luminaire according to claim 1, wherein: The optoelectronic component (30) includes a substrate (31), a light source module (32) and a power supply module (33), the light source module (32) and the power supply module (33) are both integrated on the substrate (31), and the power supply module (33) is disposed around the outside of the light source module (32).

4. The luminaire according to claim 3, wherein: The orthographic projection of the power supply module (33) on the bottom wall (101) of the housing (10) overlaps with the annular groove (12), and the orthographic projection of the light source module (32) on the bottom wall (101) of the housing (10) overlaps with the boss (11).

5. The luminaire according to claim 3, wherein: The lamp (100) further includes a face ring (20), the face ring (20) is arranged at the opening of the housing (10) and assembled and fixed with the housing (10), a buckle (21) and a second mounting hole (23) are provided on the side of the face ring (20) facing the housing (10), the buckle (21) is used for limiting the housing (10) in the up and down direction, and the housing (10) and the face ring (20) are fixedly connected by a second fastener (15) passing through the second mounting hole (23).

6. The luminaire according to claim 5, wherein: The lamp (100) further includes a diffuser plate (50) received in the face ring (20), a first abutting portion (22) is further provided on the side of the face ring (20) facing the housing (10), the first abutting portion (22) is annularly arranged and located inside the second mounting hole (23), and the diffuser plate (50) is lapped and supported on the first abutting portion (22).

7. The luminaire according to claim 5, wherein: The lamp (100) further includes a reflector (40), the reflector (40) has a light incident port and a light exit port, the light incident port abuts against the optoelectronic component (30), such that the light source module (32) is located inside the light incident port, the power supply module (33) is located outside the light incident port, and the light exit port abuts against the face ring (20).

8. The luminaire according to claim 1, wherein: The housing (10) is provided with a wire passing hole (14). The lamp (100) further includes a wire (105) and a wire locking buckle (141) connected to the optoelectronic component (30). One end of the wire locking buckle (141) is connected to the optoelectronic component (30), and the other end passes out of the wire passing hole (14), so that the wire (105) extends to the outside of the housing (10) after passing through the wire locking buckle (141) and the wire passing hole (14).

9. The luminaire according to claim 8, wherein: The wire passing hole (14) is formed in the bottom wall (101) and located in the annular groove (12). The wire locking buckle (141) passes through the wire passing hole (14) and partially extends into the annular groove (12).

10. The luminaire according to claim 1, wherein: The housing (10) is a metal heat dissipation housing.

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