lighting equipment

Abstract

To provide an illumination device capable of fixing an LED module substrate inside an outer shell without using other components such as a screw.SOLUTION: An illumination device includes: a globe whose opening is circular; an LED module substrate which is circular in mutual correspondence with the opening of the globe and is provided with an LED module on the side facing the globe; an outer shell whose opening is circular and which houses the LED module substrate; a globe side screw-in part provided outside the globe near the globe opening; and an outer shell side screw-in part provided inside the outer shell near the opening of the outer shell. A globe side screw-in part corresponds to and is screwed in the outer shell side screw-in part so that an outer edge part of the globe opening is especially pressed against the LED module substrate.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of electrical equipment, and in particular to lighting devices. [Background technology]

[0002] LEDs (Light Emitting Diodes) are widely used in indoor, outdoor, and commercial lighting. An LED lighting fixture typically includes a globe, an LED module substrate, a circuit board, a heat sink, and a lighting fixture housing, with the LED module substrate, circuit board, and heat sink housed within the globe and lighting fixture housing. In a conventional assembly process, the LED module substrate is directly or indirectly fixed to the lighting fixture housing using screws or other methods, and then the housing and the globe are assembled to form a complete lighting device.

[0003] However, conventional screw fastening methods have the problem that when the screw is tightened, a certain amount of stress is generated around the screw head on the LED module substrate or the housing, and when the lighting fixture housing and the LED module substrate are subjected to this stress, they are easily deformed, resulting in a change in the shape of the lighting fixture housing or the LED module substrate.In addition, the need to use screws increases the number of parts required for assembly, raising costs, and requiring an appropriate screw fastening process in the assembly process.

[0004] Therefore, a problem in the prior art is how to reliably fix an LED module substrate in a lighting device at low cost and simply. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been proposed in consideration of the above problems, and aims to provide a lighting device that can reliably solve the problem of fixing an LED module substrate to a lighting device easily and quickly during the assembly process without increasing the number of parts. [Means for solving the problem]

[0006] The lighting device includes a globe with a circular opening, an LED module board that is also circular and corresponds to the opening of the globe and has an LED module provided on the side facing the globe, an outer shell with a circular opening that houses the LED module board, a globe-side screw-in portion provided on the outside of the globe near the globe opening, and an outer shell-side screw-in portion provided on the inside of the outer shell near the opening of the outer shell, and the globe-side screw-in portion is screwed into the corresponding outer shell-side screw-in portion so that the outer edge of the globe opening is pressed against the LED module board.

[0007] According to the technical means of the present invention, the globe side screw-in portion and the outer shell side screw-in portion are arranged in correspondence with each other, so that when the globe opening is screwed into the outer shell opening, the outer edge of the globe opening directly presses against the LED module board, thereby fixing the LED module board within the outer shell without using other parts such as screws, and there is no need to add any additional installation steps; the LED module board can be fixed by simply screwing the globe opening into the outer shell opening, making the process simple and quick and efficiently reducing costs.

[0008] In the above technical means, it is preferable to use a globe-side screw portion, which is a male screw portion provided on the outside of the globe, and an outer-shell-side screw portion, which is a female screw portion provided on the inside of the outer shell. By providing a male screw portion and a female screw portion on the outside of the globe and the inside of the outer shell, respectively, and making them correspond to each other, and using a spiral structure as the screwing method, the spiral processing process is simplified and the fixation is strong.

[0009] In the above technical means, it is preferable to use a globe-side screw portion that is a convex portion provided on the outside of the globe, and an outer-shell-side screw portion that is a slit portion provided on the inside of the outer shell. By using corresponding protrusions and slits as a screw structure, it is not necessary to machine a spiral around the entire circumference of the outside of the globe or the inside of the outer shell, but by simply providing a convex portion and a slit portion in a certain position, positioning is easy, installation is simplified, and the convex portion and slit portion can be easily molded integrally with the globe and the outer shell, respectively, thereby reducing processing costs.

[0010] In the above technical means, it is preferable that there are at least two protrusions and two slits. By providing two or more protrusions and two or more slits, the globe and the outer casing are screwed together more firmly and the LED module board is pressed against the outer casing with greater stability.

[0011] In the above technical means, the slit portion preferably includes a convex insertion portion and a convex screw portion, the convex insertion portion being arranged inside the outer shell along the opening direction to insert the convex portion, the convex screw portion being formed continuously with the convex insertion portion and arranged at a 90-degree angle with the convex insertion portion, and the width of the convex screw portion tapering in the direction in which the convex portion is screwed in. By configuring the slit portion as a convex insertion portion and a convex screw portion that are perpendicular to each other, it is ensured that the relative movements of the outer shell and the globe are both limited by the fixing structure after the convex portion and the slit portion are aligned, making it less likely to loosen. Furthermore, by designing the opening width of the convex screw portion to narrow internally, the convex portion can be more closely aligned with the slit portion after being inserted into the slit, ensuring stable fixing.

[0012] In the above technical means, it is preferable that a locking structure be provided on either the convex portion or the convex screw-in portion. When the convex portion is screwed into the slit, the locking structure makes it difficult for loosening due to rotation in the opposite direction to occur, thereby ensuring safe assembly and use. Furthermore, when the convex portion is screwed into the convex screw-in portion, the resistance force generated by the locking structure of the convex portion is transmitted to the assembly worker's hand as a sensation, allowing the assembly worker to easily confirm whether the installation is correct.

[0013] In the above technical solution, the outer edge of the globe opening preferably includes an outer edge tip and an outer edge inner step, and when the globe-side threaded portion is screwed into the corresponding outer-shell-side threaded portion, the outer edge tip extends beyond the LED module substrate so that the end face of the outer edge inner step is pressed against the LED module substrate. According to the preferred technical solution, the outer edge inner step is pressed against the periphery of the LED module substrate, and the outer edge tip extends beyond the LED module substrate, thereby realizing the outer edge of the globe opening 1 being pressed against the LED module substrate, and the outer edge extending beyond the LED module substrate effectively separates the LED module substrate from the external space, preventing the intrusion of dust or foreign objects and improving the safety of the lighting device.

[0014] In the above technical means, it is preferable that the inner surface of the outer edge portion mate with the side edge of the LED module substrate when the globe-side screw portion is screwed into the corresponding outer-shell-side screw portion. According to such a preferable technical means, the inner surface of the outer edge portion of the globe opening mates with the side edge of the LED module substrate, making it easier to position the LED module substrate during installation, and after installation is complete, the outer edge of the globe opening is pressed against the LED module substrate, allowing the inner surface of the outer edge portion of the globe opening to fix the LED module substrate in a direction along the plane of the LED module substrate, preventing the LED module substrate from shifting and preventing the outer edge of the globe opening from effectively holding the LED module substrate.

[0015] In the above technical means, the outer edge of the globe opening preferably further includes an outer edge step, and an end face of the outer edge step and an end face of the outer shell opening mate when the globe-side threaded portion is screwed into the corresponding outer shell-side threaded portion. According to the preferred technical means, when installation is complete, the end face of the outer edge step and the end face of the outer shell opening mate, resulting in a tight connection on the outside and ensuring improved aesthetics of the lighting device. The outer edge step also forms a gap, effectively separating the LED module board and internal circuitry from the outside world, preventing the intrusion of dust or foreign objects, and improving safety.

[0016] In the above technical means, it is preferable that a heat sink is further provided adjacent to the LED module substrate inside the outer casing, and the heat sink is provided on the side of the LED module substrate where the LED module is not provided. When the globe-side screw portion is screwed into the corresponding outer casing-side screw portion, the outer edge of the globe opening presses the LED module substrate against the heat sink.

[0017] According to the above technical means, the opening of the globe is screwed into the opening of the outer shell, so that the outer edge of the globe opening directly presses against the LED module board, pressing the LED module board against the heat sink. This fixes the LED module board without using other parts such as screws, and ensures close contact between the LED module board and the heat sink 7, thereby achieving effective heat dissipation for the LED module board.

[0018] In the above technical means, it is preferable that silica gel is further provided in the gap between the outer edge and the heat sink.

[0019] According to this preferred technical solution, silica gel has adhesive and sealing properties, which adheres the globe and the heat sink together, provides an auxiliary fixing means for the screwed structure, and also seals the inside and outside of the globe to prevent the intrusion of dust or foreign matter.

[0020] In the above technical means, it is preferable that the outer edge end is pressed against the heat sink in a state where the globe side screw portion is screwed into the corresponding outer shell side screw portion.

[0021] According to this technical solution, the outer edge of the globe extends beyond the LED module board and presses directly against the heat sink, thereby achieving the function of fixing the LED module board as a whole and joining the LED module board and the heat sink 7, and also achieving the function of sealing the inside and outside of the globe with the outer edge. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is a schematic diagram of the overall structure of the lighting device provided by the present invention. [Figure 2] FIG. 2 is a schematic diagram of the overall structure of another lighting device provided by the present invention. [Figure 3] FIG. 3 is a partial enlarged view of a portion a of the lighting device shown in FIG. [Figure 4] FIG. 4 is an enlarged partial cross-sectional view of the lighting device provided by the present invention, taken along the plane of the axis thereof. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. It is obvious to those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention and do not limit the scope of protection of the present invention. Those skilled in the art can adjust them as necessary to meet specific application cases.

[0024] In particular, in the description of the present invention, terms indicating positional relationships such as "outside" and "inside" are based on the direction or positional relationship shown in the drawings and are merely used to enable those skilled in the art to specifically understand the present invention, and are not intended to indicate or suggest that the device or component must have a specific direction and a specific direction of structure and operation, and should not be construed as a limitation on the present invention.

[0025] (Embodiment 1) In a first embodiment of the present invention, a lighting device is provided that has a combination of a globe, an enclosure, an LED module substrate, and any other structure.

[0026] Fig. 1 is a schematic diagram of the overall structure of the lighting device provided by the present invention. As shown in Fig. 1, the lighting device includes a globe 1 with a circular opening, an LED module substrate 2 that is circular and corresponds to the opening of the globe 1 and has an LED module mounted on the side facing the globe 1, an outer casing 3 with a circular opening for accommodating the LED module substrate 2, a globe-side screw portion 4 provided on the outside of the globe 1 near the opening of the globe 1, and an outer casing-side screw portion 5 provided on the inside of the outer casing 3 near the opening of the outer casing 3, and the globe-side screw portion 4 is screwed into the outer casing-side screw portion 5 so that the outer edge of the opening of the globe 1 is pressed against the periphery of the LED module substrate 2.

[0027] In this embodiment, when assembling the lighting device, simply screwing the globe side screw portion 4 into the outer casing side screw portion 5 causes the outer edge of the opening in the globe 1 to directly press against the LED module board 2, thereby fixing the LED module board 2 within the outer casing 3 without using any other parts, such as screws. There is also no need to add any additional installation steps; the LED module board 2 can be fixed by simply screwing the opening in the globe 1 into the opening in the outer casing 3, making the process simple and quick and efficiently reducing costs.

[0028] 2, it is preferable to use the male threaded portion 8 provided on the outside of the globe 1 as the globe-side screwed portion 4, and the female threaded portion 9 provided on the inside of the outer shell 3 as the outer-shell-side screwed portion 5. By using a spiral structure as the screwing method, the spiral processing step is simplified and the fixation is strong.

[0029] Here, it is preferable to use the convex portion 41 provided on the outside of the globe 1 as the globe-side screw portion 4, and the slit portion 51 provided on the inside of the outer shell 3 as the outer-shell-side screw portion 5. By using corresponding protrusions and slits as the screw structure, it is not necessary to machine a spiral around the entire outside of the globe 1 or the inside of the outer shell 3; simply providing the convex portion 41 and the slit portion 51 in certain positions makes positioning easier, simplifies installation, and also makes it easier to mold the convex portion 41 and the slit portion 51 integrally with the globe 1 and the outer shell 3, respectively, thereby reducing processing costs.

[0030] In particular, in Figures 1 and 2, the globe side screw-in portion 4 and the outer shell side screw-in portion 5 are respectively described as a convex portion 41 and a slit portion 51, a male thread portion 8 and a female thread portion 9, but the present invention is not limited to this, and the present invention also applies to cases where other globes 1 and outer shells 3 are screwed together correspondingly.

[0031] Here, it is preferable that there are at least two each of the protrusions 41 and the slits 51. By providing two or more protrusions 41 and slits 51, the globe 1 and the outer casing 3 are screwed together more firmly and are more stable when pressed against the LED module substrate 2.

[0032] (Embodiment 2) In the second embodiment of the present invention, a lighting device is provided in which the width of the slit portion 51 gradually decreases from the opening toward the inside. However, the second embodiment is a more specific example of the first embodiment, and the parts that are not specifically explained are the same as the first embodiment, including the explanations by symbols and letters, and will not be explained again here.

[0033] In contrast to embodiment 1, as can be seen by combining Figures 1 and 3, in embodiment 2, slit portion 51 includes a convex introduction portion 511 and a convex screw-in portion 512, convex introduction portion 511 is provided inside outer shell 3 along the opening direction and allows convex portion 41 to be inserted, convex screw-in portion 512 is formed continuously with convex introduction portion 511 and is arranged so as to be at 90 degrees to convex introduction portion 511, and the width of convex screw-in portion 512 tapers off in the direction in which convex portion 41 is screwed in. By configuring the slit portion 51 as a convex introduction portion 511 and a convex screw-in portion 512 that are perpendicular to each other, it is ensured that the outer shell 3 and the globe 1 can move relative to each other in each direction and are both limited by the fixed structure after the convex portion 41 and the slit portion 51 are aligned, making them less likely to loosen.In addition, by designing the opening width of the convex screw-in portion 512 to narrow internally, the convex portion 41 will be aligned more tightly with the slit portion 51 after being inserted into the slit portion 51, ensuring stability of the fixation.

[0034] Furthermore, when a resin material is selected and used for globe 1 and outer shell 3, the materials for globe and outer shell have a certain degree of elasticity. Therefore, by applying a force to push convex portion 41 and passing it through convex screw-in portion 512, which is slightly smaller than convex portion 41, convex portion 41 is less likely to loosen in the opposite direction from convex screw-in portion 512 after it is inserted into slit portion 51 and assembled, and this further improves the stability of the fit between globe 1 and outer shell 3.

[0035] Here, it is preferable that a locking structure 513 be further provided on the contact surface between the convex screw portion 512 and the convex portion 41. The locking structure 513 may be a series of sawtooth projections, and during the process of screwing the convex portion 41 into the convex screw portion 512 of the slit portion 51, the biasing-based locking structure 513 makes it difficult for loosening due to rotation in the opposite direction to occur, ensuring safe assembly and use. In addition, during the process of screwing the convex portion 41 into the convex screw portion 512 of the slit portion 51, the resistance force generated by the locking structure 513 of the convex portion 41 is transmitted to the hand of the assembly worker, allowing the assembly worker to easily confirm whether the installation has been performed correctly.

[0036] It is preferable that the locking structure 513 is formed on a side surface close to the periphery of the contact surface between the convex screw-in portion 512 and the convex portion 41 (that is, the upper side surface of the convex screw-in portion 512 in FIG. 3). During the process of assembling the globe 1, the LED module board 2, and the outer casing 3, the materials of the globe 1, the LED module board 2, and the outer casing 3 have a certain elasticity. Therefore, when the globe 1 and the outer casing 3 are fastened together, the protrusion 41 can be smoothly inserted into the locking structure 513 from the underside of the convex screw portion 512 in Figure 3. However, after the assembly is completed, the globe 1 and the outer casing 3 are subjected to a tensile force in the opposite direction. At this time, the protrusion 41 and the upper side of the locking structure 513 are tightly abutted against each other and are restricted by the locking structure 513, preventing the upper side from sliding out of the convex screw portion 512. The elasticity of the materials themselves allows the protrusion 41 to be fixed using a simple structure, preventing the globe 1 and the outer casing 3 from sliding in the opposite direction and causing the assembled structure to loosen, thereby improving the stability of the assembly of the lighting device.

[0037] (Embodiment 3) In embodiment 3 of the present invention, the structure of the connection point between the globe 1 and the outer casing 3 of the lighting device provided in embodiments 1 and 2 is further specifically explained, and parts that are not particularly explained, including explanations by symbols and letters, are all the same as in embodiments 1 and 2, and will not be explained repeatedly here.

[0038] 4 is a partially enlarged view of the lighting device provided by the present invention. As shown in FIG. 4, the outer edge of the opening of globe 1 includes inner stepped outer edge 13 and outer edge end 12 that extends beyond inner stepped outer edge 13. When globe-side threaded portion 4 is screwed into corresponding outer-shell-side threaded portion 5, outer edge end 12 extends beyond LED module substrate 2, and the end face of inner stepped outer edge 13 presses against LED module substrate 2. In this embodiment, inner stepped outer edge 13 presses against the periphery of LED module substrate 2, and outer edge end 12 extends beyond LED module substrate 2, thereby enabling the outer edge of the opening of globe 1 to be pressed against LED module substrate 2. Furthermore, outer edge end 12 that extends beyond LED module substrate 2 effectively separates LED module substrate 2 from the external space, preventing the intrusion of dust or foreign objects and improving the safety of the lighting device.

[0039] Here, it is preferable that the inner surface of the outer edge 12 mates with the side edge of the LED module substrate 2 when the globe-side screw portion 4 is correspondingly screwed into the outer-shell-side screw portion 5. In a preferred embodiment of the present invention, the mate- ment of the inner surface of the outer edge 12 of the opening of the globe 1 with the side edge of the LED module substrate 2 makes it easier to position the LED module substrate 2 during installation, and after installation is complete, the outer edge of the opening of the globe 1 is pressed against the LED module substrate 2, and the inner surface of the outer edge 12 of the opening of the globe 1 can be used to fix the LED module substrate 2 in a direction along the plane of the LED module substrate 2, preventing the LED module substrate 2 from shifting and preventing the outer edge of the opening of the globe 1 from effectively holding the LED module substrate 2.

[0040] Here, it is preferable that the outer edge of the opening of the globe 1 further includes an outer edge outer step portion 11, and when the globe side screw-in portion 4 is correspondingly screwed into the outer shell side screw-in portion 5, the end face of the outer edge outer step portion 11 and the end face of the opening of the outer shell 3 align.

[0041] In this embodiment, when the installation is completed, the end face of the outer edge step portion 11 and the end face of the opening of the outer shell 3 are aligned, thereby tightly connecting the outside and ensuring an improved aesthetic appearance of the lighting device. At the same time, the outer edge step portion 11 forms a gap, effectively separating the LED module substrate 2 and internal circuitry from the outside world, preventing the intrusion of dust or foreign objects, etc., and improving safety.

[0042] (Fourth embodiment) The fourth embodiment is a further improvement over the third embodiment, and the parts that are not particularly explained are the same as those in the third embodiment, including the explanations given by symbols and letters, and will not be explained again here.

[0043] In this embodiment, as shown in Figure 4, a heat sink 7 is further provided adjacent to the LED module substrate 2 within the outer casing 3 of the lighting device, and the heat sink 7 is provided on the side of the LED module substrate 2 on which no LED module is provided, and when the globe side screw-in portion 4 is screwed into the corresponding outer casing side screw-in portion 5, the outer edge of the opening of the globe 1 presses the LED module substrate 2 against the heat sink 7.

[0044] In this embodiment, by screwing the opening of the globe 1 into the opening of the outer casing 3, the outer edge of the opening of the globe 1 directly presses against the LED module board 2, pressing the LED module board 2 against the heat sink 7, thereby fixing the LED module board 2 without using other parts such as screws, and ensuring close contact between the LED module board 2 and the heat sink 7, thereby achieving effective heat dissipation from the LED module board 2.

[0045] Here, it is preferable to further provide silica gel 6 in the gap between outer edge 12 and heat sink 7 .

[0046] In this embodiment, the silica gel 6 has adhesive and sealing properties, adhering the globe 1 and the heat sink 7 together, providing an auxiliary fixing means for the screw-in structure, and sealing the inside and outside of the globe 1 to prevent the intrusion of dust or foreign matter.

[0047] Here, it is preferable that the outer edge portion 12 is pressed against the heat sink 7 in a state where the globe side screw portion 4 is screwed into the corresponding outer shell side screw portion 5 .

[0048] In this embodiment, the outer edge 12 of the globe 1 extends beyond the LED module substrate 2 and is pressed directly against the heat sink 7, thereby achieving the function of fixing the LED module substrate 2 as a unit and joining the LED module substrate 2 and the heat sink 7, and the outer edge 12 also achieves a sealing function between the inside and outside of the globe 1.

[0049] Although the technical solutions of the present invention have been described above in conjunction with the drawings, those skilled in the art can easily understand that the scope of protection of the present invention is not limited to the specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent modifications or replacements to the relevant technical features, and all of the technical solutions after such modifications or replacements will fall within the scope of protection of the present invention. [Explanation of symbols]

[0050] 1 Gloves 11 Outer edge outer step 12 outer edge 13. Outer edge inner step 2 LED module boards 3 Outer Wall 4 Globe side screw-in part 41 Convex part 5 Outer shell screw-in part 51 Slit section 511 Convex introduction part 512 Convex screw part 513 Locking structure 6. Silica gel 7 Heatsink 8 Male thread 9 Female thread

Claims

1. a globe having a circular opening; an LED module substrate having a circular shape corresponding to the opening of the globe and having an LED module provided on a side facing the globe; an outer shell having a circular opening for accommodating the LED module substrate; a globe-side threaded portion provided on the outside of the globe near the opening of the globe; an outer shell-side screw portion provided on the inside of the outer shell near the opening of the outer shell, the globe-side screw portion is screwed into the outer-shell-side screw portion so that the outer edge of the globe opening is pressed against the LED module substrate; The globe-side screw-in portion is a protrusion provided on the outside of the globe, the outer-shell-side screw portion is a slit portion provided on the inside of the outer shell, the slit portion includes a convex threaded portion, The convex screw-in portion is further provided with a locking structure corresponding to the convex portion. Lighting equipment.

2. The globe-side screw portion is a male thread portion provided on the outside of the globe, The outer-shell-side screw portion is a female thread portion provided on the inside of the outer shell. The lighting device according to claim 1 .

3. The number of the convex portions and the number of the slit portions are at least two.

3. The lighting device according to claim 1 or 2.

4. The slit portion includes a protruding introduction portion, The protruding introduction portion is provided inside the outer shell along the opening direction, and the protruding portion is inserted into the protruding introduction portion, the convex screw-in portion is formed continuously with the convex introduction portion and is disposed at 90 degrees to the convex introduction portion, The width of the convex screw-in portion is tapered in the direction in which the convex portion is screwed in. The lighting device according to any one of claims 1 to 3.

5. A globe having a circular opening; an LED module substrate having a circular shape corresponding to the opening of the globe and having an LED module provided on a side facing the globe; an outer shell having a circular opening for accommodating the LED module substrate; a globe-side threaded portion provided on the outside of the globe near the opening of the globe; an outer shell-side screw portion provided on the inside of the outer shell near the opening of the outer shell, the globe-side screw portion is screwed into the outer-shell-side screw portion so that the outer edge of the globe opening is pressed against the LED module substrate; the outer edge of the opening of the globe includes an outer edge end and an outer edge inner step portion; When the globe-side screw portion is screwed into the outer-shell-side screw portion, the outer edge end portion extends beyond the LED module substrate, and an end face of the outer edge inner step portion is pressed against the LED module substrate. Lighting equipment.

6. When the globe-side screw portion is screwed into the outer-shell-side screw portion, the inner surface of the outer edge portion and the side edge of the LED module substrate are mated.

6. The lighting device according to claim 5.

7. The outer edge of the opening of the globe further includes an outer edge step portion, When the globe-side screw portion is screwed into the outer-shell-side screw portion, an end face of the outer edge outer step portion and an end face of the opening of the outer shell are brought into contact with each other. The lighting device according to any one of claims 1 to 6.

8. A heat sink is further provided within the outer shell, The LED module substrate is pressed against the heat sink in a state where the globe-side screw portion is screwed into the corresponding outer-shell-side screw portion.

6. The lighting device according to claim 5.

9. The gap between the outer edge and the heat sink is further filled with silica gel.

9. The lighting device according to claim 8.

10. The outer edge portion is pressed against the heat sink in a state where the globe-side screw portion is screwed into the outer-shell-side screw portion.

10. The lighting device according to claim 8 or 9.

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