LED module with light source capable of rotating universally

Abstract

The invention provides an LED module with a light source capable of rotating universally. The LED module comprises the light source, a support, a light source fixing bowl and a power supply system. The light source assembly is fixed in the support through the light source fixing bowl and can rotate universally along the inner spherical surface of the support, and the light source fixing bowl can rotate along with the light source assembly. At least three small hemispherical protrusions are evenly distributed on the edge of an opening in the lower end of the inner spherical surface of the light source fixing bowl along the circumference, so that the light source fixing bowl is in point contact with the outer spherical surface of the support, and friction force generated when the light source fixing bowl rotates along with the light source assembly is reduced. And a mounting flange plate is arranged at the lower end of the bracket, so that the LED module with the light source capable of rotating universally can be mounted in various applicable lighting appliances.

Description

Technical Field

[0001] This invention relates to lighting technology, and more particularly to LED modules. Background Technology

[0002] Some downlights have a light source that can rotate around an axis at a certain angle. Others allow the light source to rotate in any direction at a certain angle. These omnidirectionally rotating light sources are typically shaped like a drum, housed within a concentric drum-shaped inner spherical cavity. This cavity provides support for the omnidirectional rotation of the light source and prevents it from falling out. Due to their drum shape, the structure is complex and bulky. This invention provides an LED module with an omnidirectionally rotating light source, featuring a compact structure, flexible rotation, and compatibility with various lighting fixtures. Summary of the Invention

[0003] This invention proposes an LED module with a omnidirectionally rotatable light source, comprising a light source, a bracket, a light source fixing bowl, and a power supply system.

[0004] This omnidirectional LED module features a spherical, or bowl-shaped, housing for its light source component, with a spherical outer surface. LED beads are soldered onto an aluminum substrate, which is then fixed to the bottom of the housing with thermally conductive adhesive. Both the aluminum substrate and the bottom of the housing have through-holes for the input wires to pass through. The exposed conductors of the input wires are soldered to corresponding pads on the aluminum substrate. Silicone is applied between the input wires and the through-holes to ensure a seal and prevent moisture and dust from entering the light source component. A condenser lens is glued to the open end of the light source component housing, again requiring a seal to prevent moisture and dust from entering the light source component.

[0005] The light source assembly is fixed inside the bracket by a light source fixing bowl. The light source fixing bowl has a bowl-shaped structure with a spherical inner surface. The light source assembly and the light source fixing bowl are fastened together with screws. The outer spherical surface of the light source assembly housing and the inner spherical surface of the bracket form a omnidirectional rotating joint for the light source assembly. The inner spherical surface of the light source fixing bowl and the outer spherical surface of the bracket are also omnidirectional rotating joints. When the light source assembly rotates omnidirectionally within the inner spherical surface of the bracket, the light source fixing bowl rotates synchronously with the light source assembly on the outer spherical surface of the bracket.

[0006] To reduce the frictional force of the light source fixing bowl, at least three hemispherical protrusions evenly distributed along the circumference are set at the edge of the lower opening of the light source fixing bowl. The contact between these hemispherical protrusions and the outer spherical surface of the bracket is point contact, which greatly reduces the sliding friction between the light source fixing bowl and the outer spherical surface of the bracket.

[0007] The bracket supports the entire LED module, and the lower end of the bracket is equipped with a mounting flange. The flange can be provided with mounting holes or slots for easy installation, so that the LED module can be installed on various suitable lighting fixtures.

[0008] The power socket of the power supply system is soldered onto the socket PCB. Two screws are used to secure the socket and PCB together to the top of the light source mounting bowl. The exposed conductor at the other end of the input line is soldered to the socket pins. The cavity under the PCB needs to be filled with sealing silicone to prevent water and dust ingress. The input line of the plug is connected to the output terminal of the driver. Inserting the plug into the socket connects the LED module to the driver.

[0009] The outer spherical surface of the light source assembly housing, the inner spherical surface of the bracket, the outer spherical surface of the bracket, and the inner spherical surface of the light source fixing bowl should be concentric spherical surfaces. This ensures that the light source assembly can rotate flexibly in all directions inside the bracket.

[0010] Depending on the requirements for light emission and heat dissipation, the materials for the housing and bracket of the light source component can be metal or plastic.

[0011] To reduce the friction between the outer spherical surface of the light source assembly housing and the inner spherical surface of the bracket, the outer spherical surface of the light source assembly housing is provided with no fewer than three evenly distributed steel ball sockets along the circumference, and no fewer than three steel balls of the same size are placed there. This changes the sliding friction between the outer spherical surface of the light source assembly housing and the inner spherical surface of the bracket into rolling friction, making the rotation of the light source assembly more flexible.

[0012] To further reduce the friction between the inner spherical surface of the light source fixing bowl and the outer spherical surface of the bracket, at least three evenly distributed steel ball sockets are set at the edge of the lower opening of the inner spherical surface of the light source fixing bowl, and at least three steel balls of the same size are placed there. This changes the sliding friction between the inner spherical surface of the light source fixing bowl and the outer spherical surface of the bracket into rolling friction, making the light source fixing bowl more flexible when it rotates with the light source assembly.

[0013] An LED module with a omnidirectional rotatable light source can employ a magnetic attraction design. The outer spherical surface of the light source component housing has at least three evenly distributed cylindrical grooves along its circumference, each holding at least three identical magnets. These magnets are glued to the light source component housing. The housing is made of a non-magnetic material, while the support is made of a magnetic material. The magnets attract the light source component to the inner spherical surface of the support. The high tensile strength of the magnetic attraction ensures the light source component is firmly attached to the support, while the low shear strength does not affect the omnidirectional rotation of the light source component within the support. If each magnet is replaced with a yoke composed of two magnets, the magnetic attraction force will increase exponentially. In this magnetic attraction design, the light source component is firmly attached to the support by magnets, eliminating the need for a separate light source holder to secure it.

[0014] To prevent the light source assembly from falling off in the event of a strong impact or other accident, a light source anti-detachment cup is provided that rotates with the light source assembly. The light source anti-detachment cup is also bowl-shaped, and its bowl-shaped part does not need to contact the outer spherical surface of the bracket. The light source anti-detachment cup is fastened to the light source assembly with screws. Attached Figure Description

[0015] Figure 1 A schematic diagram of an LED module whose light source can rotate in all directions.

[0016] Figure 2 A schematic diagram of an LED module with a single-circle steel ball light source that can rotate in all directions.

[0017] Figure 3 A schematic diagram of an LED module with a double-ringed steel ball light source that can rotate in all directions.

[0018] Figure 4 A schematic diagram of an LED module whose light source can rotate in all directions, attracted by magnets. Detailed Implementation

[0019] Specific embodiments of the present invention will be further described in conjunction with the accompanying drawings.

[0020] Reference Appendix Figure 1The omnidirectional LED module has a spherical, or bowl-shaped, housing (11) of its light source component (10), with a spherical outer surface (114). LED beads (13) are soldered onto an aluminum substrate (12), which is fixed to the bottom of the housing (11) of the light source component (10) with thermally conductive adhesive. Both the aluminum substrate (12) and the housing (11) have through holes (17) at their bottoms, allowing the input wire (16) to pass through the housing (11). The exposed conductor (18) of the input wire (16) is soldered to the corresponding pad on the aluminum substrate (12). Silicone is applied between the input wire (16) and the through hole (17) to ensure a seal and prevent moisture and dust from entering the light source component (10). A condenser lens (14) is glued to the open end of the housing (11) of the light source component (10), also requiring a seal to prevent moisture and dust from entering the light source component (10).

[0021] The light source assembly (10) is fixed inside the bracket (20) by the light source fixing bowl (30). The light source fixing bowl (30) is a bowl-shaped structure with a spherical surface (22) on its inner surface. The light source assembly (10) and the light source fixing bowl (30) are fastened together with screws (34). The outer spherical surface (114) of the housing (11) of the light source assembly (10) and the inner spherical surface (22) of the bracket (20) form a rotating pair that allows the light source assembly (10) to rotate in all directions. The inner spherical surface (311) of the light source fixing bowl (30) and the outer spherical surface (23) of the bracket (20) are also a rotating pair that allows the light source assembly (10) to rotate in all directions. When the light source assembly (10) rotates in all directions in the inner spherical surface (22) of the bracket (20), the light source fixing bowl (30) rotates synchronously with the light source assembly (10) on the outer spherical surface (23) of the bracket (20).

[0022] In order to reduce the frictional force of the light source fixing bowl (30) moving, no less than three hemispherical small protrusions (36) evenly distributed along the circumference are provided at the edge of the lower opening of the light source fixing bowl (30). The contact between these hemispherical small protrusions (36) and the outer spherical surface (23) of the bracket (20) is point contact, which greatly reduces the sliding friction between the light source fixing bowl (30) and the outer spherical surface (23) of the bracket (20).

[0023] The bracket (20) supports the entire LED module. The lower end of the bracket (20) is provided with a flange (21) for installation. Mounting holes or slots can be opened on the flange (21) to facilitate the installation of the LED module on various applicable lighting fixtures.

[0024] The socket (42) of the power supply system (40) is soldered onto the socket PCB (41). Two screws (33) are used to fix the socket (42) together with the PCB (41) to the upper end of the light source fixing bowl (30). The exposed conductor (19) at the other end of the input line (16) is soldered to the pin (421) of the socket (42). The cavity under the PCB (41) needs to be filled with sealing silicone (44) to prevent water and dust from entering. The input line (45) of the plug (43) is connected to the output end of the driver. When the plug (43) is inserted into the socket (42), the LED module is connected to the driver.

[0025] The outer spherical surface (114) of the housing (11) of the light source assembly (10), the inner spherical surface (22) of the bracket (20), the outer spherical surface (23) of the bracket (20) and the inner spherical surface (311) of the light source fixing bowl (30) should be concentric spherical surfaces, so as to ensure that the light source assembly (10) can rotate flexibly in all directions inside the bracket (20).

[0026] Depending on the requirements for light emission and heat dissipation, the materials of the housing (11) and bracket (20) of the light source component (10) can be metal or plastic.

[0027] Reference Appendix Figure 2 In order to reduce the friction between the outer spherical surface (114) of the housing (11) of the light source assembly (10) and the inner spherical surface (22) of the bracket (20), the outer spherical surface (114) of the housing (11) of the light source assembly (10) is provided with no less than 3 steel ball sockets (151) evenly distributed along the circumference, and no less than 3 steel balls (15) of the same size are placed therein, so that the sliding friction between the outer spherical surface (114) of the housing (11) of the light source assembly (10) and the inner spherical surface (22) of the bracket (20) becomes rolling friction, making the rotation of the light source assembly more flexible.

[0028] Reference Appendix Figure 3 In order to further reduce the friction between the inner spherical surface (311) of the light source fixing bowl (30) and the outer spherical surface (23) of the bracket (20), at least three steel ball sockets (321) evenly distributed along the circumference are provided at the edge of the lower opening of the inner spherical surface (311) of the light source fixing bowl (30), and at least three steel balls (32) of the same size are placed therein, so that the sliding friction between the inner spherical surface (311) of the light source fixing bowl (30) and the outer spherical surface (23) of the bracket (20) becomes rolling friction, making the light source fixing bowl (30) more flexible when rotating with the light source assembly (10).

[0029] Reference Appendix Figure 4The LED module with omnidirectional rotatable light source can adopt a design scheme of magnetic attraction. The outer spherical surface (114) of the housing (11) of the light source component (10) is provided with no less than 3 cylindrical grooves (113) evenly distributed along the circumference. No less than 3 magnets (111) of the same size are placed therein. The magnets (111) are glued to the housing (11) of the light source component (10) with glue (112). The housing (11) of the light source component (10) is made of non-magnetic material, and the bracket (20) is made of magnetic material. The magnets (111) attract the light source component (10) to the inner spherical surface (22) of the bracket (20). The tensile strength of the magnetic attraction force is relatively large, so the light source component (10) is firmly attracted to the bracket (20). The shear strength of the magnetic attraction force is relatively low, so it does not affect the omnidirectional rotation of the light source component (10) on the inner spherical surface (22) of the bracket (20). If each magnet (111) is replaced with a yoke composed of two magnets, the magnetic attraction force will increase exponentially. In the magnet attraction design, the light source assembly (10) is firmly attracted to the bracket (20) by the magnet (111), and there is no need to use the light source fixing bowl (30) to fix the light source assembly (10).

[0030] In order to prevent the light source assembly (10) from falling off in case of strong impact or other accidents, a light source anti-detachment bowl (50) is provided that rotates with the light source assembly (10). The light source anti-detachment bowl (50) is also bowl-shaped, and its bowl-shaped part (51) does not need to contact the outer spherical surface (23) of the bracket (20). The light source anti-detachment bowl (50) is fastened to the light source assembly (10) with screws (34).

[0031] The above description, in conjunction with specific preferred embodiments, further illustrates the present invention and should not be construed as limiting the specific implementation of the invention to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the inventive concept, all of which fall within the scope of protection of the present invention.

Claims

1. An LED module with a omnidirectionally rotatable light source assembly, comprising a light source assembly, a bracket, a light source mounting bowl, and a power supply system. Its features are: The outer spherical surface of the light source assembly housing and the inner spherical surface of the bracket form a omnidirectional rotating pair, enabling the light source assembly to rotate omnidirectionally within the inner spherical surface of the bracket. The light source fixing bowl is fastened to the light source assembly and mounts the light source assembly within the inner spherical surface of the bracket. At least three hemispherical protrusions, evenly distributed along the circumference at the lower opening of the inner spherical surface of the light source fixing bowl and making point contact with the outer spherical surface of the bracket, also form a omnidirectional rotating pair with the outer spherical surface of the bracket, allowing the light source fixing bowl to rotate omnidirectionally along with the light source assembly.

2. The LED module with a omnidirectionally rotatable light source assembly according to claim 1, characterized in that: The outer spherical surface of the light source assembly housing has at least three steel ball sockets evenly distributed along the circumference, each containing at least three steel balls of the same size. This transforms the sliding friction between the outer spherical surface of the light source assembly housing and the inner spherical surface of the bracket into rolling friction, making the omnidirectional rotation of the light source assembly more flexible.

3. The LED module with a omnidirectionally rotatable light source assembly according to claim 1, characterized in that: At the lower end of the inner spherical surface of the light source fixing bowl, there are no fewer than three steel ball sockets evenly distributed along the circumference, each containing no fewer than three steel balls of the same size. This transforms the sliding friction between the inner spherical surface of the light source fixing bowl and the outer spherical surface of the bracket into rolling friction, allowing the light source fixing bowl to rotate more flexibly in all directions along with the light source assembly.

4. The LED module with a omnidirectionally rotatable light source assembly according to claim 1, characterized in that: The outer spherical surface of the light source assembly housing has at least three cylindrical grooves evenly distributed along its circumference. At least three identical magnets are glued into these grooves. Due to the strong attraction of the magnets, the light source assembly is firmly adsorbed into the inner spherical surface of the bracket. Because the shear resistance of the magnets' attraction is relatively weak, the light source assembly can rotate omnidirectionally within the inner spherical surface of the bracket. The light source anti-detachment cup is securely fastened to the light source assembly to prevent it from falling off in the event of strong impacts or other accidents.

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