High-power LED lamp

Abstract

The utility model provides a high-power LED lamp which comprises a shell, a light source, a radiator and a fan, and the light source, the radiator and the fan are sequentially arranged in the shell. The light source is provided with a temperature sensor which is connected with the controller; when the light source temperature obtained by the temperature sensor is larger than a first preset temperature threshold value, the controller controls the fan to increase the rotating speed; after the fan increases the rotating speed, the light source temperature obtained by the temperature sensor is greater than a first preset temperature threshold, and the controller controls the light source to reduce power; the radiator and the fan assist in radiating, and the rotating speed of the fan and the power of the light source are intelligently adjusted to effectively reduce the temperature of the light source, so that the light source is at a safe working temperature and is prevented from being overheated.

Description

Technical Field

[0001] This application relates to the field of lighting fixtures, and more particularly to a high-power LED lamp. Background Technology

[0002] Most high-power LED lights on the market currently rely on physical structures for natural radiation heat dissipation, resulting in poor heat dissipation and a tendency for overheating and damage. However, with higher wattage lights, such as those with 1000W, 2000W, or even higher power, the heat sink becomes very large and the power density is low. This makes high-power LED lights unsuitable for applications such as fishing attractants, emergency overhead lights, and emergency lighting for aircraft. Utility Model Content

[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0004] The purpose of this application is to at least partially solve one of the technical problems existing in the related technologies. The embodiments of this application provide a high-power LED lamp that can effectively reduce the temperature of the light source and keep the light source at a safe operating temperature.

[0005] According to an embodiment of this application, a high-power LED lamp includes: a housing, a light source, a heat sink, and a fan, wherein the light source, the heat sink, and the fan are arranged sequentially and disposed within the housing; the light source is provided with a temperature sensor, which is connected to a controller;

[0006] Specifically, when the temperature of the light source obtained by the temperature sensor is greater than a first preset temperature threshold, the controller controls the fan to increase its speed; after the fan increases its speed, if the temperature of the light source obtained by the temperature sensor is greater than the first preset temperature threshold, the controller controls the light source to reduce its power.

[0007] According to certain embodiments of this application, when the temperature of the light source obtained by the temperature sensor is less than a second preset temperature threshold, the controller controls the fan to reduce its speed, wherein the second preset temperature threshold is less than the first preset temperature threshold.

[0008] According to certain embodiments of this application, a baffle plate is provided between the heat sink and the fan, and the baffle plate divides the internal space of the housing into an air inlet area and an air outlet area.

[0009] According to certain embodiments of this application, the wind deflector is provided with ventilation holes, and the fan is positioned directly opposite the ventilation holes.

[0010] According to certain embodiments of this application, the heat sink is forged from a thermally conductive metal material into a shape having multiple heat dissipation blades.

[0011] According to certain embodiments of this application, the front end of the housing is provided with an LED light-emitting cavity, and the LED light-emitting cavity is provided with glass and a reflector.

[0012] According to certain embodiments of this application, air convection ventilation grilles are provided on the rear and multiple sides of the housing, and the locations of the air convection ventilation grilles are provided with rain-proof shielding grilles.

[0013] According to certain embodiments of this application, the housing is movably connected to a mounting bracket for adjusting the illumination angle of the LED light, and the mounting bracket is insulated from the heat sink. The mounting bracket is made of metal, and the housing is made of plastic.

[0014] According to certain embodiments of this application, the housing is provided with a power supply cavity, a power supply is disposed inside the housing, and the power supply cavity fixes and installs the power supply.

[0015] According to certain embodiments of this application, the power supply is arranged around the fan.

[0016] The above solution has at least the following beneficial effects: when the temperature of the light source obtained by the temperature sensor is greater than the first preset temperature threshold, the controller controls the fan to increase its speed; after the fan speed is increased, if the temperature of the light source obtained by the temperature sensor is still greater than the first preset temperature threshold, the controller controls the light source to reduce its power; by using the heat sink and fan to assist in heat dissipation, and by intelligently adjusting the fan speed and the power of the light source, the temperature of the light source can be effectively reduced, keeping the light source at a safe operating temperature and preventing overheating; the size and weight of the lamp body are significantly reduced, and the power density is increased. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0018] Figure 1 This is a structural diagram of a high-power LED light;

[0019] Figure 2 This is a front view of a high-power LED light;

[0020] Figure 3 This is a side view of a high-power LED light;

[0021] Figure 4 This is a rear view of a high-power LED light;

[0022] Figure 5 This is an exploded view of a high-power LED light. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0026] An embodiment of this application provides a high-power LED lamp.

[0027] Reference Figures 1 to 5 High-power LED light, including: housing 100, light source 200, heat sink 300 and fan 500.

[0028] The light source 200, heat sink 300 and fan 500 are arranged in sequence and housed inside the housing 100; the light source 200 is equipped with a temperature sensor, which is connected to the controller.

[0029] Specifically, when the temperature of the light source 200 obtained by the temperature sensor is greater than the first preset temperature threshold, the controller controls the fan 500 to increase its speed; after the fan 500 increases its speed, if the temperature of the light source 200 obtained by the temperature sensor is greater than the first preset temperature threshold, the controller controls the light source 200 to reduce its power.

[0030] In this embodiment, the light source 200 is a high-power LED lamp, which can be 1000W, 2000W or higher. The high-power light source 200 requires good heat dissipation conditions to keep the high-power LED lamp at a safe operating temperature and prevent the light source 200 from overheating.

[0031] The heat from the light source 200 is dissipated by the heat sink 300, and the heat from the light source 200 is carried away by the fan 500.

[0032] In addition, intelligent temperature control is used to maintain the operating temperature of the light source 200. A temperature sensor acquires the temperature of the light source 200 and sends it to the controller. The controller then controls the fan speed and the power of the light source 200 based on the light source temperature. When the light source temperature acquired by the temperature sensor exceeds a first preset temperature threshold, the controller increases the fan speed. If, after increasing the fan speed, the light source temperature still exceeds the first preset temperature threshold, the controller reduces the power of the light source 200. It should be noted that the first preset temperature threshold is generally set as the maximum safe operating temperature of the light source 200, which varies depending on the model of the light source 200. When the light source temperature exceeds the first preset temperature threshold, the fan speed is increased first. If, after increasing the fan speed, the light source temperature still exceeds the first preset temperature threshold, the power of the light source 200 is reduced until the light source temperature falls below the first preset temperature threshold.

[0033] The temperature sensor is a temperature feedback NTC resistor. The temperature sensor is mounted on the lamp board of the 200 ohm light source.

[0034] Understandably, in order to extend the service life of fan 500, fan 500 is initially derated, with an initial speed of 70% of its rated value. When the temperature of light source 200 obtained by the temperature sensor exceeds the first preset temperature threshold, the controller controls fan 500 to increase its speed, and fan 500 operates at its rated speed.

[0035] When the temperature of the light source 200 obtained by the temperature sensor is greater than the first preset temperature threshold, the LED lamp control device adjusts the output power of the light source 200 to ensure that the LED lamp is within the safe operating temperature range under any abnormal conditions, such as: the fan 500 is damaged, the light-emitting surface is blocked, or the light-emitting surface is contaminated and the light emission is blocked, causing the LED lamp to overheat.

[0036] When the temperature of the light source 200 detected by the temperature sensor is lower than the second preset temperature threshold, the controller controls the fan 500 to reduce its speed. Specifically, when the temperature of the light source 200 detected by the temperature sensor is low, and the temperature of the light source 200 is lower than the second preset temperature threshold (which can be set to 20 degrees Celsius in this embodiment, but can be set to other temperatures depending on actual production conditions in other embodiments), the controller controls the fan 500 to reduce its speed, thereby extending the lifespan of the fan 500.

[0037] The outer casing 100 is made of plastic and includes a front casing 110 and a rear casing 120; the front casing 110 and the rear casing 120 fit together to form a cavity. Electrical components are housed within the cavity. A gland 121 is connected to the rear side of the rear casing 120. Air convection ventilation grilles 130 are provided on the rear and multiple sides of the outer casing 100, and shielding grilles are provided at the positions of the air convection ventilation grilles 130. The outer casing 100 is designed to prevent dripping rain. Specifically, air convection ventilation grilles 130 are provided on the left and right sides of the front casing 110, and air convection ventilation grilles 130 are provided on the lower side of the rear casing 120. No air convection ventilation grilles 130 are provided on the upper side of the rear casing 120, thus providing a rain-proof effect. Additionally, shielding grilles are provided at the positions of the air convection ventilation grilles 130 on the lower side of the rear casing 120; similarly, shielding grilles can be provided at the positions of the air convection ventilation grilles 130 on the left and right sides of the front casing 110. The shielding grille serves to block rain and prevent water from entering the interior of the housing 100 through the air convection ventilation grille opening 130, thereby damaging the electrical components inside the housing 100.

[0038] The front end of the housing 100 is provided with an LED light-emitting cavity 111, that is, the front housing 110 is provided with an LED light-emitting cavity 111; the LED light-emitting cavity 111 is provided with a glass 150 and a reflector 160. The reflector 160 reflects the light emitted by the light source 200, thereby improving the output efficiency and output luminous flux of the LED lamp.

[0039] Light source 200 is an LED light source. LED light source 200 is a high-efficiency surface light source formed by directly integrating multiple LED chips on a metal substrate. It has the characteristics of high brightness, uniform light distribution and low cost.

[0040] The heat sink 300 is attached to one side of the light source 200. The heat sink 300 is forged from a thermally conductive metal material (such as aluminum) into a shape with multiple heat dissipation fins. The heat dissipation fins increase the heat dissipation area and improve heat dissipation efficiency. Heat is transferred from the light source 200 to the surface of the heat sink 300 through thermal conduction, and then dissipated into the environment through thermal convection and thermal radiation.

[0041] A baffle plate 400 is provided between the radiator 300 and the fan 500, dividing the internal space of the outer casing 100 into an air intake zone and an air exhaust zone. The baffle plate 400 has ventilation holes 410, and the fan 500 is positioned directly opposite the ventilation holes 410. Air blown by the fan 500 is directed towards the radiator 300 through the ventilation holes 410 in the center of the baffle plate 400. When the fan 500 blows air towards the radiator 300, the rear side of the fan 500 forms the air intake zone, and the front side forms the air exhaust zone. Air enters the cavity through the air convection ventilation grille 130 of the rear casing 120 and exits the cavity through the air convection ventilation grille 130 of the front casing 110, carrying away heat from the radiator 300 and the light source 200, thus lowering the temperature inside the cavity.

[0042] A power supply 600 is housed within the housing 100. The power supply 600 also includes an LED driver controller, which is arch-shaped and comprises a horizontal bar and two vertical bars flanking the horizontal bar. The housing 100 has a power supply cavity that securely mounts the power supply. Specifically, the rear housing 120 has four fixing screws. These four screws engage with the inner side of the arch-shaped LED driver controller, thus securing the power supply 600.

[0043] The power supply 600 is positioned around the fan 500. The fan 500 is positioned inside the arch-shaped doorway of the LED driver controller, with the horizontal and vertical bars of the LED driver controller surrounding the fan 500. This allows the airflow from the fan 500 to dissipate the heat generated by the LED driver controller during operation, thereby reducing the battery temperature.

[0044] A mounting bracket 140 is movably connected to the outer casing 100. The mounting bracket 140 is connected to the outer casing 100 on both sides via fixing screws 141. The vertical strip of the mounting bracket 140 has round holes and arc-shaped holes, with the arc-shaped holes surrounding the round holes. One fixing screw 141 passes through the round hole and connects to the outer casing 100, while the other fixing screw 141 passes through the arc-shaped hole and connects to the outer casing 100, ensuring a more secure connection between the mounting bracket 140 and the outer casing 100. Furthermore, the LED light's illumination angle can be adjusted by rotating the mounting bracket 140. The user can hold the mounting bracket 140 and lift the LED light. The mounting bracket 140 is made of metal, while the outer casing 100 is made of plastic. The mounting bracket 140 ensures insulation between itself and the metal parts that dissipate heat from the LED light, ensuring insulation between the external and internal electrically conductive components of the entire lamp, thereby preventing electric shock accidents to the user in the event of lamp leakage and failure of contact protection.

[0045] The above is a detailed description of the preferred embodiments of this application, but this application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A high-power LED lamp, characterized in that, include: The system comprises a housing, a light source, a heat sink, and a fan, wherein the light source, the heat sink, and the fan are arranged sequentially and disposed within the housing; the light source is equipped with a temperature sensor, which is connected to a controller. Specifically, when the temperature of the light source obtained by the temperature sensor is greater than a first preset temperature threshold, the controller controls the fan to increase its speed; after the fan increases its speed, if the temperature of the light source obtained by the temperature sensor is greater than the first preset temperature threshold, the controller controls the light source to reduce its power.

2. The high-power LED lamp according to claim 1, characterized in that, When the temperature of the light source obtained by the temperature sensor is less than the second preset temperature threshold, the controller controls the fan to reduce its speed, and the second preset temperature threshold is less than the first preset temperature threshold.

3. The high-power LED lamp according to claim 1, characterized in that, A baffle plate is provided between the heat sink and the fan, which divides the internal space of the housing into an air intake area and an air outlet area.

4. The high-power LED lamp according to claim 3, characterized in that, The wind deflector is provided with ventilation holes, and the fan is positioned directly opposite the ventilation holes.

5. The high-power LED lamp according to claim 1, characterized in that, The radiator is forged from a thermally conductive metal material into a shape with multiple heat dissipation blades.

6. The high-power LED lamp according to claim 1, characterized in that, The front end of the outer casing is provided with an LED light-emitting cavity, which is provided with glass and a reflector.

7. The high-power LED lamp according to claim 1, characterized in that, The rear and multiple sides of the housing are provided with air convection ventilation grilles, and the locations of the air convection ventilation grilles are provided with rain-proof shielding grilles.

8. The high-power LED lamp according to claim 1, characterized in that, The housing is movably connected to a mounting bracket for adjusting the LED light illumination angle, and the mounting bracket is insulated from the heat sink. The mounting bracket is made of metal, and the housing is made of plastic.

9. The high-power LED lamp according to claim 1, characterized in that, The outer casing is provided with a power supply cavity, and a power supply is disposed inside the outer casing. The power supply cavity fixes and installs the power supply.

10. The high-power LED lamp according to claim 9, characterized in that, The power supply is positioned around the fan.

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