LED lamp with variable light emitting angle and control method thereof

Abstract

The invention discloses a light-emitting angle and color temperature variable LED lamp and a control method thereof.The light-emitting angle and color temperature variable LED lamp comprises a driving power source, the driving power source can be connected with alternating current (AC) (80V-240V) or direct current (DC) (12V-50V), two or more LED chip circuits are arranged in an LED chip module, a circuit adjusting device is installed between the driving power source and the LED chip module, and the LED chip module is connected with the driving power source. Different LED chip circuits in the LED chip module can emit light independently or simultaneously through the circuit adjusting device, the size of the light emitting face of the LED chip module is changed, and the light emitting angle of the LED lamp can be changed after light emitted by the LED chip module passes through an optical device (a lens or a reflection cup). The control mode of the circuit adjusting device is divided into a manual control mode and a remote wireless control mode, wherein the manual control mode comprises the manual control mode of a dial switch; according to the remote wireless control mode, the size of the light-emitting surface of the LED chip module can be changed by remote control or wireless control through the MCU module or the PWM module, so that the light-emitting angle of the LED lamp is changed.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lamps, and in particular to an LED lamp with variable light emission angle and color temperature and a control method thereof. Background Art

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

[0003] Existing LED lamps 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 output angle. However, the light output is prone to form an aperture, the light output uniformity is poor, and manual adjustment of the focal length is prone to deviation. The standard uniformity is poor, the cost of wireless control is high, and additional mechanical control equipment needs to be added. Disassembling the lamp and replacing the optical device (lens or reflector cup) with different light output angles can also achieve light output at different angles. The premise is that you need to understand the structure of the lamp and need professional tools for disassembly. In addition, optical devices that match different angles of LED chips are not easy to buy on the market, and the cost of wireless control is high. Summary of the invention

[0004] The purpose of the present invention is to provide an LED lamp with variable light output angle and color temperature and a control method thereof, so as to solve the problem in the above-mentioned background technology that the plano-convex lens of the LED lamp is prone to form an aperture when changing the light output angle, and the disassembly and replacement of optical devices requires professionals or professional tools.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an LED lamp with variable light emission angle and color temperature and a control method thereof, comprising a driving power supply, the driving power supply can be connected to alternating current AC (80V-240V) or direct current DC (12V-50V), the output end of the driving power supply is provided with a connecting line, the other end of the connecting line is connected to an LED chip module, 2 or more LED chip circuits are arranged inside the LED chip module, a circuit adjustment device is installed between the driving power supply and the LED chip module, and different LED chip circuits in the LED chip module are made to emit light individually or simultaneously through the circuit adjustment device, thereby changing the size of the light emitting surface of the LED chip module, so that the light emitted by the LED chip module can change the light emission angle of the LED lamp after passing through an optical device (lens or reflective cup).

[0006] A dual-color temperature LED chip can be further arranged in the multi-channel LED chip circuit in the chip module, so as to realize the change of multiple color temperatures of the LED lamp while changing the light output angle of the LED lamp.

[0007] Preferably, two or more LED chip circuits are arranged inside the LED chip module, and a circuit adjustment device is installed between the driving power supply and the LED chip module. The circuit adjustment device enables 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, so that the light emitted by the LED chip module can change the light output angle of the LED lamp after passing through an optical device (lens or reflective cup).

[0008] By adopting the above technical solution, the LED chip module can quickly adjust the size of the light-emitting surface to achieve the change of the light output angle of the lamp.

[0009] Preferably, the circuit adjustment device is connected to the driving power supply and the LED chip module respectively. The control modes of the circuit regulator are divided into manual control mode and remote wireless control mode: 1. The circuit adjustment device can be manually controlled, such as a dip switch, for reference. Figure 1 The dip switch can be set at multiple positions of the LED lamp. By turning the multiple positions of the dip switch, different LED chip circuits in the LED chip module can be powered on and illuminated, thereby changing the light output angle of the LED lamp. 2. The circuit adjustment device can change the size of the light-emitting surface of the LED chip module through remote control or wireless control via the MCU module or PWM module, thereby changing the light output angle of the LED lamp. The MCU module or PWM module can be external or built-in inside the driver power supply; By adopting 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 by the circuit adjustment device.

[0010] Preferably, a dual-color temperature LED chip can be further arranged in the multi-channel LED chip circuit in the chip module, so that the LED lamp can achieve a variety of color temperatures while changing the light output angle of the LED lamp.

[0011] By adopting the above technical solution, the lamp can be used in a wider range of places.

[0012] Preferably, the LED chip module is fixedly mounted 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 heat dissipation inside the lamp is accelerated.

[0013] Preferably, the LED chip module is fixed on the inner surface of the LED lamp housing with a chip holder, the chip holder is located above the optical device, the optical device is located on the upper part of the anti-glare cover, and the anti-glare cover is installed on the inner surface of the lamp outer ring, and the lamp outer ring can be fixed on the LED lamp housing.

[0014] By adopting the above technical solution, the LED chip module can change the light emitting surface so that the light emitting angle can be adjusted.

[0015] Preferably, the optical device and the anti-glare cover are both configured as conical structures.

[0016] The above technical solution is adopted to facilitate the adjustment of the light output angle of the lamp, thus achieving better effect.

[0017] Preferably, the LED lamp generally refers to an LED lighting lamp with an LED light source, a driving power supply, an optical device (lens or a reflective cup), an LED lamp housing and a lamp heat sink.

[0018] By adopting the above technical scheme, the present invention can be applied to LED lighting fixtures such as LED downlights, LED spotlights, LED track lights, LED mining lights and LED linear lights.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the LED lamp with variable light output angle and color temperature: 1. The light output angle of the lamp is changed by changing the size of the light-emitting surface of the LED chip module. The light-emitting surface of 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; 2. Furthermore, the LED chip module is designed with dual color temperatures based on multiple light-emitting surfaces, which can change the light output angle of the lamp while achieving multiple color temperatures. The above can be controlled by the circuit adjustment device. The light output angle of the lamp can be changed without disassembling and replacing the optical device, and the light color temperature is more diverse; 3. Furthermore, by adjusting the light output angle, the light can be focused on the area that needs to be illuminated. The light can be focused on various areas of different sizes, which improves the efficiency of light utilization, thereby reducing energy consumption and making the light more evenly distributed in the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of manual control of the lamp circuit adjustment device of the present invention; Figure 2 It is a schematic diagram of remote and wireless control of the lamp circuit adjustment device of the present invention.

[0021] In the figure: 1. Driving power supply; 2. Circuit adjustment device; 2-1. Manual switch; 2-2. Wireless control module; 3. LED lamp housing; 4. Heat sink; 5. Spring clip; 6. LED chip module; 7. Chip holder; 8. Optical device; 9. Anti-glare cover; 10. Lamp outer ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 2 The present invention provides a technical solution: an LED lamp with variable light output angle and color temperature and a control method thereof, comprising 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, an optical device 8, an anti-glare cover 9, and a lamp outer ring 10.

[0024] The LED lamp with variable light emission angle and color temperature can change the light emission angle of the lamp by controlling the size of the light emitting surface of the LED chip module 6, and the light emission is softer and does not need to be disassembled and replaced. Specifically: The driving power supply 1 is connected to the circuit regulating device 2, and the other end of the circuit regulating device 2 is connected to the LED chip module 6. The LED chip module 6 is fixedly mounted 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 on the upper part of 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. The optical device 8 and the anti-glare cover 9 are both set to a conical structure. The outer surface of the LED lamp housing 3 is provided with a heat sink (4). The optical device 8 is a lens or a reflective cup.

[0025] The circuit regulating device 2 includes a manual switch 2-1 and a wireless control module 2-2.

[0026] Manual switch 2-1 is a toggle switch. Figure 1 , the dip switches are set at multiple positions of the LED lamps.

[0027] Reference Manual Attached Figure 2 The wireless control module 2-2 can change the size of the light-emitting surface of the LED chip module through remote control or wireless control via the MCU module or PWM module, thereby changing the light-emitting angle of the LED lamp. The MCU module or PWM module is externally or internally installed in the driving power supply. When the LED lamp with variable light angle and color temperature is used, Figure 1 , Figure 2As shown, an LED chip module 6 is installed inside the LED lamp housing 3. The light emitting angle of the lamp can be adjusted by changing the size of the light emitting surface of the LED chip module 6. First, the LED chip module 6 is supported by the chip bracket 7. The optical device 8 can focus and diffuse the light of the LED chip module 6, so that the light emitted by the lamp can accurately illuminate a specific area, improve the light utilization efficiency, and improve the uniformity of light intensity distribution. By refraction and reflection of the light, the optical device 8 can make the light more evenly distributed in the irradiated area, avoiding the situation of local overbrightness or overdarkness. The anti-glare cover 9 can block the direct light emitted by the lamp, reduce the glare intensity, make the light softer and more comfortable, improve the quality and comfort of lighting, and enable people to see the surrounding environment better. After the driving power supply 1 is powered on, the circuit adjustment device 2 The LED chip module 6 is powered on to emit light, and the change in the size of the light-emitting surface of the LED chip module 6 is realized by powering on different LED circuits on the LED chip module 6; 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 in the manual control mode, and the toggle switch can be installed in multiple positions of the lamp, such as the surface position of the LED lamp housing 3, and the outer surface of the driving power supply 1 and the inner wall surface of the anti-glare cover 9. In this way, the installation position of the toggle switch can be adjusted according to the on-site requirements, which is convenient for the user to turn on the toggle switch; the circuit adjustment device 2 is in the remote and wireless control mode, and the different light-emitting surfaces of the LED chip module 6 are controlled by the embedded MCU or PWM module, which is simple to operate, low in cost, can be wirelessly controlled, and has strong consistency. The heat sink 4 can dissipate heat from the LED lamp housing 3 to avoid overheating of the lamp, so as to adjust the size of the light-emitting surface at any time according to the requirements of different lighting positions to obtain a suitable light-emitting angle. For example, in scenes where spotlighting is required, such as stage performances, museum exhibits, etc., the light-emitting surface can be reduced to obtain a smaller light-emitting angle, and the light can be concentrated to highlight the key points. In places that require large-area uniform lighting, such as conference rooms and classrooms, the light-emitting surface can be enlarged to obtain a larger light output angle, so that the light is more evenly distributed in the space, which can reduce unnecessary light scattering and waste. Concentrating the light in the area that needs lighting improves the efficiency of light utilization, thereby reducing energy consumption. For places that use lighting equipment for a long time, it can significantly reduce energy costs and also meet the requirements of energy conservation and environmental protection.

[0028] Working principle: When controlling different luminous surfaces to emit light, the steps are as follows: A plurality of groups of LED circuits with different light-emitting surfaces are installed on the LED chip module 6; A circuit adjustment device 2 is installed on the connection line between the driving power supply 1 and the LED chip module 6, which can control the on and off of each group of LED circuits respectively; When the manual control mode is adopted, the switch is manually toggled to the corresponding gear position, and the corresponding LED circuit on the LED chip module 6 is energized, so that the corresponding LED circuit lights up, and the light source emits light through the optical device 8 to achieve light collection.

[0029] When the remote and wireless control mode is adopted, the circuit adjustment device 2 is constructed with an embedded MCU or PWM module for remote control to realize the lighting of LED circuits with different light-emitting surfaces.

[0030] LED lamps generally refer to LED lighting lamps with LED light sources, driving power supplies, optical device lenses or reflective cups, LED lamp housings and lamp heat sinks. The present invention can be applied to LED lighting lamps such as LED downlights, LED spotlights, LED track lights, LED mining lamps and LED line lights.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An LED lamp with a variable light output angle, comprising an input end of a driving power supply (1) which can be connected to alternating current (AC) or direct current (DC), and an output end of the driving power supply (1) having a connecting line, characterized in that: The other end of the connecting wire is connected to an LED chip module (6), wherein two or more LED chip circuits are arranged inside the LED chip module (6), and a circuit regulating device (2) is installed between the driving power supply (1) and the LED chip module (6), and the circuit regulating device (2) causes different LED chip circuits in the LED chip module (6) to emit light individually or simultaneously, thereby changing the size of the light-emitting surface of the LED chip module (6), so that 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).

2. The LED lamp with variable light output angle according to claim 1, characterized in that: The optical device (8) is a lens or a reflective cup.

3. The LED lamp with variable light output angle according to claim 1, characterized in that: The circuit regulating device (2) comprises a manual switch (2-1 in the figure) and a wireless control module (2-2 in the figure).

4. The LED lamp with variable light output angle according to claim 3, characterized in that: The manual switch (2-1) is a toggle switch, and the toggle switch is arranged on the outer surface or inner surface of the LED lamp housing (3), or on the inner wall surface of the driving power source (1) and the anti-glare cover (9).

5. The LED lamp with variable light output angle according to claim 3, characterized in that: The wireless control module (2-2) can change the size of the light-emitting surface of the LED chip module by remote control or wireless control via an MCU module or a PWM module, thereby achieving a change in the light output angle of the LED lamp. The MCU module or the PWM module is externally or internally mounted inside the driving power supply.

6. The LED lamp with variable light output angle according to claim 4, characterized in that: The LED chip module (6) is fixedly mounted on the upper surface of the inner wall of the LED lamp housing (3); 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); the LED chip module (6) is fixed to 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); the anti-glare cover (9) is mounted on the inner surface of the lamp outer ring (10); and the lamp outer ring (10) is fixed on the LED lamp housing (3).

7. The LED lamp with variable light output angle according to claim 6, characterized in that: A spring clip (5) is symmetrically mounted on the outer surface of the LED lamp housing (3), and the lower end of the spring clip (5) is engaged with the lower surface of the lamp outer ring (10).

8. The LED lamp with variable light output angle according to claim 6, characterized in that: The optical device (8) and the anti-glare cover (9) are both configured as conical structures.

9. A method for controlling an LED lamp with a variable light output angle according to any one of claims 1 to 8, characterized in that: include: S1. A plurality of LED chip circuits are installed on the LED chip module (6); S2. The circuit adjustment device (2-1) is manually controlled, for example, by a toggle switch, the two ends of the toggle switch are connected to the driving power supply (1) and the LED chip (6), and the different LED chip circuits in the LED chip module (6) are controlled and adjusted to emit light individually or simultaneously by moving the multiple gears in the toggle switch, thereby changing the size of the light-emitting surface of the LED chip module (6), so that 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); S3. The circuit adjustment device (2-2) is selected to be remotely and wirelessly controlled, and an MCU module or a PWM module is installed between the driving power supply (1) and the LED chip module (6) to achieve remote or wireless control to adjust the light emission of different LED chip circuits in the LED chip module (6) individually or simultaneously, thereby changing the size of the light-emitting surface of the LED chip module (6), so that 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); S4. A dual-color temperature LED chip can be further arranged in the multi-channel LED chip circuit in the chip module (6), so that the LED lamp can achieve a variety of color temperature changes while changing the light output angle of the LED lamp.

10. The LED control method of the LED lamp with variable light output angle according to claim 9, characterized in that: The control method is applied to LED lighting fixtures such as LED downlights, LED spotlights, LED track lights, LED mining lights and LED linear lights.

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