LED luminaire with variable light-emitting angle, and control method therefor

Abstract

Disclosed in the present invention are an LED luminaire with a variable light-emitting angle and a variable color temperature, and a control method therefor. The LED luminaire comprises a drive power supply, which is connectable to an alternating current (AC) (80V-240V) or a direct current (DC) (12V-50V), wherein two or more LED chip circuits are disposed inside an LED chip module, a circuit adjustment apparatus is installed between the drive power supply and the LED chip module, and different LED chip circuits in the LED chip module separately or simultaneously emit light by means of the circuit adjustment apparatus, so as to change the size of a light-emitting surface of the LED chip module, such that the light-emitting angle of the LED luminaire can be changed after the light emitted from the LED chip module passes through an optical device (a lens or a reflector cup). The control modes of the circuit adjustment apparatus are divided into a manual control mode and a remote wireless control mode. Manual control may be realized, for example, by means of a toggle switch; and in the remote wireless control mode, the size of the light-emitting surface of the LED chip module can be changed through remote control or wireless control by an MCU module or a PWM module, thereby changing the light-emitting angle of the LED luminaire.

Description

A variable light emission angle LED lamp and its control method Technical Field

[0001] This invention relates to the field of LED lighting technology, specifically to an LED lighting fixture with variable light emission angle and color temperature, and its control method. Background Technology

[0002] With the development of semiconductor lighting in recent years, LED lights have been widely used in outdoor lighting, neon lights, home appliances, vehicles, computers, and other lighting products. Especially in lighting, LED lights have gradually replaced incandescent and fluorescent lamps, and are widely used in many fields, including home lighting and auxiliary lighting. LED lights have high electro-optical conversion efficiency, significantly reducing energy consumption compared to traditional lights. At the same time, LED lights do not contain harmful substances such as mercury, making them more environmentally friendly. The lifespan of LED chips can typically reach tens of thousands of hours, far exceeding that of traditional lights, reducing the frequency and cost of replacing lights. They can emit various colors of light, and different color effects can be achieved through adjustment to meet various lighting needs. They can light up instantly, without the start-up time of traditional lights, making them suitable for occasions requiring rapid response. The small size of LED chips allows for the design of lights in various shapes and sizes to adapt to different installation environments and decorative requirements.

[0003] Existing LED lights generally use the zoom principle of plano-convex lenses (optical devices) to manually adjust the focal length of the LED chip to change the light emission angle. However, this easily creates an aperture, resulting in poor light uniformity. Furthermore, manual focal length adjustment is prone to deviations, leading to poor standardization and high costs for wireless control, requiring additional mechanical control equipment. Replacing the light fixture with optical devices (lenses or reflectors) of different light emission angles can also achieve different light emission angles, but this requires knowledge of the light fixture's structure and specialized tools for disassembly. Moreover, optical devices with different angles matching the LED chip are not readily available on the market, and wireless control is also costly. Summary of the Invention

[0004] The purpose of this invention is to provide an LED lamp with variable light emission angle and color temperature and its control method, so as to solve the problem mentioned in the background art that changing the light emission angle of the plano-convex lens of the LED lamp can easily form an aperture, and that disassembling and replacing optical components requires professional personnel or special tools.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A variable light emission angle LED lamp includes a driver power supply. The input terminal of the driver power supply can be connected to AC (80V-240V) or DC (12V-50V). The output terminal of the driver power supply has a connecting wire, the other end of which is connected to an LED chip module. The LED chip module has two or more LED chip circuits inside. A circuit adjustment device is installed between the driver power supply and the LED chip module. The circuit adjustment device makes different LED chip circuits in the LED chip module emit light individually or simultaneously, thereby changing the size of the light-emitting surface of the LED chip module. This allows the light emitted by the LED chip module to change the light emission angle of the LED lamp after passing through optical devices.

[0007] The optical device is a lens or a reflector.

[0008] By adopting the above technical solution, the size of the light-emitting surface of the LED chip module can be quickly adjusted, thereby changing the light emission angle of the lamp.

[0009] Preferably, the circuit adjustment device is connected to the driving power supply and the LED chip module respectively. The circuit adjustment device includes a manual switch, and / or the circuit adjustment device includes a remote control or wireless control module, so that the control mode of the circuit adjustment device is divided into a manual control mode and a remote wireless control mode.

[0010] 1. The circuit adjustment device can be manually controlled, for example, by using a toggle switch. Referring to Figure 1 in the instruction manual, the toggle switch can be set in multiple positions of the LED lamp. Specifically, the toggle switch can be set on the outer or inner surface of the LED lamp housing, or on the inner wall surface of the driver power supply and the anti-glare cover. By using the multiple positions of the toggle switch, different LED chip circuits in the LED chip module are energized and illuminated, thereby changing the light emission angle of the LED lamp.

[0011] 2. The circuit adjustment device can change the size of the light-emitting surface of the LED chip module through remote or wireless control via MCU module or PWM module, thereby changing the light emission angle of the LED lamp. The MCU module or PWM module can be external to the driver power supply or internal to the driver power supply.

[0012] Using the above technical solution, the size of the light-emitting surface of the LED chip module can be controlled and adjusted in two control modes through the circuit adjustment device.

[0013] Preferably, a dual-color-temperature LED chip can be set in the multi-channel LED chip circuit within the chip module, which can achieve multiple color temperature changes of the LED lamp while changing the light emission angle of the LED lamp.

[0014] The above technical solution makes the lighting fixtures applicable to a wider range of places.

[0015] Preferably, the LED chip module is fixedly installed on the upper surface of the inner wall of the LED lamp housing, and a heat sink is provided on the outer surface of the LED lamp housing to provide heat dissipation for the LED chip module. By adopting the above technical solution, the internal heat dissipation of the lamp is accelerated.

[0016] Preferably, the LED chip module is fixed to the inner surface of the LED lamp housing by a chip bracket, the chip bracket is located above the optical device, the optical device is located above the anti-glare cover, and the anti-glare cover is installed on the inner surface of the lamp outer ring, which can be fixed to the LED lamp housing.

[0017] By adopting the above technical solution, the LED chip module can change the light-emitting surface to adjust the light-emitting angle.

[0018] Spring clips are symmetrically installed on the outer surface of the LED lamp housing, and the lower end of the spring clips engages with the lower surface of the lamp outer ring.

[0019] Preferably, both the optical device and the anti-glare shield are configured as a conical structure.

[0020] The above technical solution facilitates the adjustment of the light emission angle of the lamps, resulting in better performance.

[0021] Preferably, the LED luminaire refers to an LED lighting luminaire that includes an LED light source, a driver power supply, optical components (lens or reflector), an LED luminaire housing, and a luminaire heat sink.

[0022] An LED control method for an LED luminaire with variable light emission angle includes:

[0023] S1. Two or more LED chip circuits are installed on the LED chip module;

[0024] S2. The circuit adjustment device is selected to be manually controlled, such as a toggle switch. The two ends of the toggle switch are connected to the drive power supply and the LED chip module. By adjusting the multiple positions in the toggle switch, the different LED chip circuits in the LED chip module can be controlled to emit light individually or simultaneously, thereby changing the size of the light-emitting surface of the LED chip module. This allows the light emitted by the LED chip module to be changed after passing through optical devices, thus changing the light emission angle of the LED lamp.

[0025] S3. The circuit adjustment device is selected to use remote control or wireless control. An MCU module or PWM module is installed between the driver power supply and the LED chip module to realize remote control or wireless control to adjust the different LED chip circuits in the LED chip module to emit light individually or simultaneously, thereby changing the size of the light-emitting surface of the LED chip module. The light emitted by the LED chip module can be changed after passing through optical devices to realize the change of the light output angle of the LED lamp.

[0026] S4. A dual-color temperature LED chip can be set in the multi-channel LED chip circuit within the LED chip module, which can achieve multiple color temperature changes of the LED lamp while changing the light output angle of the LED lamp.

[0027] Using the above technical solution, the present invention can be applied to LED lighting fixtures such as LED downlights, LED spotlights, LED track lights, LED industrial and mining lights, and LED linear lights.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the LED lamp with variable light emission angle and color temperature:

[0029] 1. The light emission angle of the lamp is changed by changing the size of the light-emitting surface of the LED chip module. The LED chip module has two or more light-emitting surface sizes, and the size of the light-emitting surface of the LED chip module is changed by controlling the circuit adjustment device.

[0030] 2. Furthermore, the LED chip module is designed with dual color temperature on the basis of multiple light-emitting surfaces. This can not only change the light emission angle of the lamp, but also achieve multiple color temperature changes. This can be controlled by the circuit adjustment device. The light emission angle of the lamp can be changed without disassembling and replacing optical components, and the color temperature of the light is richer and more diverse.

[0031] 3. Furthermore, by adjusting the beam angle, the light can be focused on the area requiring illumination. This allows for targeted lighting in areas of various sizes, improving light utilization efficiency, reducing energy consumption, and distributing light more evenly throughout the space. Attached Figure Description

[0032] Figure 1 is a schematic diagram of the manual control of the lamp circuit adjustment device of the present invention;

[0033] Figure 2 is a schematic diagram of the lamp circuit adjustment device of the present invention, which can be controlled manually, remotely, and wirelessly.

[0034] Figure 3 is a schematic diagram of remote or wireless control of the lamp circuit adjustment device of the present invention, wherein the circuit adjustment device is built into the drive power supply.

[0035] Figure 4 is a schematic diagram of remote or wireless control of the lamp circuit adjustment device of the present invention, wherein the circuit adjustment device is external to the drive power supply.

[0036] In the diagram: 1. Drive power supply;

[0037] 2. Circuit adjustment device; 2-1. Manual switch; 2-2. Remote control or wireless control module;

[0038] 3. LED lamp housing; 4. Heat sink; 5. Spring clip; 6. LED chip module; 7. Chip bracket; 8. Optical components; 9. Anti-glare cover; 10. Lamp outer ring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please refer to Figures 1-2. This invention provides a technical solution: an LED lamp with variable light emission angle and color temperature and its control method, including a driving power supply 1, a circuit adjustment device 2, an LED lamp housing 3, a heat sink 4, a spring clip 5, an LED chip module 6, a chip bracket 7, optical components 8, an anti-glare cover 9, and an outer ring 10 of the lamp. The driving power supply 1 can include an external driving power supply and an internal driving power supply. The input terminal of the driving power supply 1 can be connected to AC (80V-240V) or DC (12V-50V). The output terminal of the driving power supply 1 has a connecting wire, and the other end of the connecting wire is connected to the LED chip module 6. The LED chip module 6 has two or more LED chip circuits. A circuit adjustment device 2 is installed between the driving power supply 1 and the LED chip module 6. The circuit adjustment device 2 enables different LED chip circuits in the LED chip module 6 to emit light individually or simultaneously after being powered on, thereby changing the size of the light-emitting surface of the LED chip module 6. The light emitted by the LED chip module 6 passes through the optical components 8 to change the light emission angle of the LED lamp.

[0041] This LED lamp, with its variable light emission angle and color temperature, can change its light emission angle by controlling the size of the emitting surface of the LED chip module 6, resulting in softer light emission without the need for disassembly or replacement. Specifically:

[0042] The driving power supply 1 is connected to the circuit adjustment device 2, and the other end of the circuit adjustment device 2 is connected to the LED chip module 6. The LED chip module 6 is fixedly installed on the upper surface of the inner wall of the LED lamp housing 3. The LED chip module 6 is fixed on the inner surface of the LED lamp housing 3 by a chip bracket 7. The chip bracket 7 is located above the optical device 8. The optical device 8 is located above the anti-glare cover 9, and the anti-glare cover 9 is installed on the inner surface of the lamp outer ring 10. The lamp outer ring 10 can be fixed on the LED lamp housing 3. Both the optical device 8 and the anti-glare cover 9 are set as conical structures. The outer surface of the LED lamp housing 3 is provided with a heat sink 4 to provide heat dissipation for the LED chip module 6.

[0043] Spring clips 5 are symmetrically installed on the outer surface of the LED lamp housing 3, and the lower end of the spring clips 5 engages with the lower surface of the lamp outer ring 10.

[0044] Among them, optical device 8 is a lens or a reflector.

[0045] The circuit adjustment device 2 includes a manual switch 2-1 and a remote control or wireless control module 2-2, thus having a manual switch mode and a remote control or wireless control mode; wherein, the remote control mode is a remote wired control method.

[0046] Manual switch 2-1 is a toggle switch. Referring to Figure 1 in the instruction manual, the toggle switch can be set in multiple positions of the LED lamp. In Figure 1, the toggle switch can also be set in the driver power supply 1, the LED lamp housing 3, the heat sink 4, and the anti-glare cover 9.

[0047] Referring to Figure 2 in the instruction manual, the remote control or wireless control module 2-2 can change the size of the light-emitting surface of the LED chip module via the MCU module or PWM module, thereby changing the light emission angle of the LED lamp. The MCU module or PWM module can be externally mounted to the driver power supply or internally mounted inside the driver power supply. When in use, as shown in Figures 1 and 2, the LED chip module 6 is installed inside the LED lamp housing 3. By changing the size of the light-emitting surface of the LED chip module 6, the light emission angle of the lamp can be adjusted. First, the LED chip module 6 is supported by the chip bracket 7. The optical device 8 can focus and diffuse the light from the LED chip module 6, enabling the light emitted by the lamp to accurately illuminate a specific area, improving light utilization efficiency and light intensity distribution uniformity. Through refraction and reflection of light, the optical device 8 can make the light distribution more uniform within the irradiated area, avoiding localized over-brightness or under-brightness. The anti-glare cover 9 can block the light emitted by the lamp. Direct light is emitted, reducing glare intensity and making the light softer and more comfortable, improving the quality and comfort of lighting and allowing people to see the surrounding environment more clearly. After the driver power supply 1 is powered on, the LED chip module 6 is powered on and emits light through the circuit adjustment device 2. The size of the light-emitting surface of the LED chip module 6 is changed by energizing different LED circuits on the LED chip module 6. In manual control mode, the circuit adjustment device 2 can control the size of the energized light-emitting surface of the LED chip module 6 by adjusting the toggle switch. The toggle switch can be installed in multiple positions on the lamp, such as on the surface of the LED lamp housing 3, the outer surface of the driver power supply 1, and the inner wall surface of the anti-glare cover 9. This allows the installation position of the toggle switch to be adjusted according to the needs of the site, making it convenient for users to turn on the toggle switch. In remote and wireless control mode, the circuit adjustment device 2 controls the different light-emitting surfaces of the LED chip module 6 to emit light through the embedded MCU or PWM module. It is simple to operate, low in cost, can achieve wireless control, and has strong consistency. The heat sink 4 dissipates heat from the LED lamp housing 3, preventing overheating. This allows the size of the emitting surface to be adjusted according to different lighting requirements to achieve the appropriate light emission angle. For example, in scenarios requiring focused lighting, such as stage performances or museum exhibit displays, the emitting surface can be reduced to achieve a smaller light emission angle, concentrating the light to highlight key areas. Conversely, in places requiring large-area uniform lighting, such as conference rooms or classrooms, the emitting surface can be enlarged to achieve a larger light emission angle, distributing the light more evenly throughout the space and reducing unnecessary light scattering and waste. Concentrating light on the area requiring illumination improves light utilization efficiency, thereby reducing energy consumption. This can significantly reduce energy costs for places that use lighting equipment long-term, while also meeting energy conservation and environmental protection requirements.

[0048] As shown in Figure 3, the circuit adjustment device 2 is built into the drive power supply 1, that is, the remote control or wireless control module 2-2 is built into the drive power supply 1.

[0049] Please refer to Figure 4. The circuit adjustment device 2 can also be placed outside the drive power supply 1, that is, the remote control or wireless control module 2-2 is placed outside the drive power supply 1.

[0050] Working principle: This method for controlling LED lighting fixtures with variable light emission angles, which controls the emission of light from different light-emitting surfaces, includes the following steps:

[0051] S1. Two or more LED chip circuits with different light-emitting surfaces are installed on the LED chip module 6;

[0052] A circuit adjustment device 2 is installed on the connection line between the driver power supply 1 and the LED chip module 6, which can control the on / off state of each group of LED circuits separately.

[0053] S2. The circuit adjustment device 2 is selected to be manually controlled, such as a toggle switch. The two ends of the toggle switch are connected to the drive power supply 1 and the LED chip module 6. By adjusting the multiple positions in the toggle switch, the different LED chip circuits in the LED chip module 6 are controlled to emit light individually or simultaneously after being powered on, thereby changing the size of the light-emitting surface of the LED chip module 6. The light emitted by the LED chip module 6 can change the light emission angle of the LED lamp after passing through the optical device 8.

[0054] S3. The circuit adjustment device 2 selects a remote control or wireless control mode. An MCU module or PWM module is installed between the drive power supply 1 and the LED chip module 6 to realize remote control or wireless control to adjust the different LED chip circuits in the LED chip module 6 to emit light individually or simultaneously after being powered on, thereby changing the size of the light-emitting surface of the LED chip module 6. The light emitted by the LED chip module 6 can change the light emission angle of the LED lamp after passing through the optical device 8. The remote control can be a remote wired control.

[0055] S4. Two or more LED chip circuits within the LED chip module 6 can be further equipped with dual-color temperature LED chips, which can achieve multiple color temperature changes of the LED lamp while changing the light output angle of the LED lamp.

[0056] When using manual control mode, manually toggling the corresponding position of the switch will power on the corresponding LED circuit on the LED chip module 6, causing the corresponding LED circuit to light up. The light emitted by the light source is then focused by the optical device 8.

[0057] When using remote or wireless control mode, the circuit adjustment device 2 is equipped with an embedded MCU or PWM module for remote control to realize the LED circuits emitting light on different light-emitting surfaces.

[0058] LED lighting fixtures generally refer to LED lighting fixtures with LED light sources, driver power supplies, optical components such as lenses or reflectors, LED lighting fixture housings, and lighting fixture heat sinks. This invention can be applied to LED downlights, LED spotlights, LED track lights, LED industrial and mining lights, and LED linear lights, etc.

[0059] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A light-emitting diode (LED) lamp with variable light-emitting angle, comprising an input end of a driving power supply (1) to which alternating current (AC) or direct current (DC) is connected, and an output end of the driving power supply (1) connected with a connecting line, characterized in that: The other end of the connecting line is connected to an LED chip module (6), which is internally provided with two or more LED chip circuits, and a circuit adjusting device (2) is installed between the driving power supply (1) and the LED chip module (6), so that the different LED chip circuits in the LED chip module (6) can emit light individually or simultaneously through the circuit adjusting device (2), thereby changing the size of the light emitting surface of the LED chip module (6) and changing the light emitting angle of the LED lamp after the light emitted by the LED chip module (6) passes through the optical device (8).

2. The light emitting diode (LED) luminaire of claim 1, wherein: The optical device (8) is a lens or a reflective cup.

3. The light output angle variable LED luminaire of claim 1, wherein: The circuit adjusting device (2) comprises a manual switch (2-1), and / or the circuit adjusting device (2) comprises a remote control or wireless control module (2-2).

4. The light output angle variable LED luminaire of claim 3, wherein: The manual switch (2-1) is a toggle switch, which is arranged on the outer surface or inner surface of the LED lamp shell (3), or the inner wall surface of the driving power supply (1) and the anti-dazzle cover (9).

5. The light output angle variable LED luminaire of claim 3, wherein: The remote control or wireless control module (2-2) can change the size of the light emitting surface of the LED chip module through an MCU module or a PWM module, thereby changing the light emitting angle of the LED lamp, and the MCU module or the PWM module is externally arranged on the driving power supply or internally arranged in the driving power supply.

6. The light output angle variable LED luminaire of claim 4, wherein: The LED chip module (6) is fixedly installed on the upper surface of the inner wall of the LED lamp shell (3), the outer surface of the LED lamp shell (3) is provided with a heat sink (4) for providing heat dissipation for the LED chip module (6), the LED chip module (6) is fixed on the inner surface of the LED lamp shell (3) by a chip support (7), the chip support (7) is located above the optical device (8), the optical device (8) is located at the upper part of the anti-dazzle cover (9), and the anti-dazzle cover (9) is installed on the inner surface of the lamp outer ring (10), and the lamp outer ring (10) is fixed on the upper surface of the LED lamp shell (3).

7. The light output angle variable LED luminaire of claim 6, wherein: The outer surface of the LED lamp shell (3) is symmetrically provided with spring clamps (5), and the lower ends of the spring clamps (5) are clamped with the lower surface of the lamp outer ring (10).

8. The light output angle variable LED luminaire of claim 6, wherein: The optical device (8) and the anti-dazzle cover (9) are both arranged in a conical structure.

9. The LED control method of the LED luminaire with variable light output angle according to any one of claims 1-8, characterized in that: Comprise: S1. Two or more LED chip circuits are installed on the LED chip module (6); S2. The circuit adjusting device (2) is manually controlled, for example, a toggle switch, the two ends of the toggle switch are in communication with the driving power supply (1) and the LED chip module (6), and the different LED chip circuits in the LED chip module (6) can emit light individually or simultaneously through the multiple gears in the toggle switch, thereby changing the size of the light emitting surface of the LED chip module (6), and the light emitted by the LED chip module (6) can change the light emitting angle of the LED lamp after passing through the optical device (8); S3. The circuit adjustment device (2) selects remote control or wireless control, installs an MCU module or a PWM module between the driving power supply (1) and the LED chip module (6), realizes remote control or wireless control adjustment of the different LED chip circuits in the LED chip module (6) to emit light individually or simultaneously, changes the size of the light emitting surface of the LED chip module (6), and makes the light emitted by the LED chip module (6) change the light emitting angle of the LED lamp after passing through the optical device (8); S4. The double-color-temperature LED chip can be further arranged in the multiple LED chip circuits in the LED chip module (6), and the change of the light emitting angle of the LED lamp can be realized while the LED lamp changes multiple color temperatures.

10. The LED control method of the LED luminaire with variable light output angle according to claim 9, wherein: The control method is applied to an LED down lamp, an LED spotlight, an LED track lamp, an LED industrial and mining lamp, or an LED line lamp.

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