LED driving power supply facilitating heat dissipation

Abstract

This utility model discloses an LED driver power supply with improved heat dissipation, aiming to solve the problem that most existing driver power supplies rely on passive cooling, resulting in limited heat dissipation efficiency. The key technical points are: an LED driver power supply with improved heat dissipation includes a housing and a power supply body disposed inside the lower part of the housing. The housing has several evenly arranged heat dissipation fins above the power supply body. An air supply unit is located at the upper end of the housing, with its air outlet facing the heat dissipation fins. The air supply unit includes a motor disposed outside the housing and fan blades connected to the motor's output shaft. This utility model's LED driver power supply with improved heat dissipation significantly increases heat dissipation efficiency. By using a motor to drive the fan blades to form a directional airflow that directly blows onto the surface of the heat dissipation fins, it accelerates heat transfer, effectively reduces the temperature of the power supply body, and ensures stable operation of the LED driver power supply under high-temperature conditions. Its compact structure meets the requirements for miniaturization and lightweighting of driver power supplies.

Description

Technical Field

[0001] This utility model relates to the field of driver power supply technology, and more specifically, it relates to an LED driver power supply that is easy to dissipate heat. Background Technology

[0002] An LED driver is a power conversion device that converts input electrical energy into a specific voltage and current. Its core function is to provide a stable operating current for the LED, ensuring that the LED emits light under a constant current.

[0003] The power supply generates a lot of heat when it is working. If the temperature rises, it will be damaged if there is no good heat dissipation device. Most existing power supplies rely on passive heat dissipation, that is, air flow through vents, but the heat dissipation efficiency is limited. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an LED driver power supply that is easy to dissipate heat, which solves the problem that most existing technologies rely on passive heat dissipation, that is, air flow through ventilation holes, but the heat dissipation efficiency is limited.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an LED driver power supply that facilitates heat dissipation, including a housing and a power supply body disposed at the lower end of the housing. The housing has a plurality of evenly arranged heat dissipation fins above the power supply body. An air supply unit is disposed at the upper end of the housing. The air outlet of the air supply unit faces the heat dissipation fins. The air supply unit includes a motor disposed outside the housing and fan blades connected to the output shaft of the motor. Ventilation holes are provided on the top, bottom and the surface of the housing in the area between the heat dissipation fins and the fan blades.

[0006] The present invention is further configured such that: two semiconductor cooling chips are provided on the top of the housing, the two semiconductor cooling chips are symmetrically distributed on both sides of the motor, and the cold end of the semiconductor cooling chip faces the motor.

[0007] The present invention is further configured such that a heat insulation pad is laid on the top of the shell.

[0008] The present invention is further configured such that: the housing includes an upper shell and a lower shell, and the upper shell and the lower shell are detachably connected.

[0009] The present invention is further configured such that: a first magnetic attracting element is embedded on the bottom surface of the upper shell, and a second magnetic attracting element is embedded on the top surface of the lower shell, and the second magnetic attracting element is attracted to the first magnetic attracting element.

[0010] The present invention is further configured such that: the bottom surface of the upper shell is integrally formed with a plurality of protruding ridges, and the top surface of the lower shell is integrally formed with a plurality of grooves, the grooves being adapted to the protruding ridges.

[0011] The present invention is further configured such that: a plurality of evenly spaced columns are provided at the bottom of the housing, and the power supply body is provided at the top of the columns.

[0012] In summary, this utility model has the following beneficial effects:

[0013] Compared with traditional passive cooling, it has the following advantages: First, the heat dissipation efficiency is greatly improved. The motor drives the fan blades to form a directional airflow, which directly blows on the surface of the heat sink fins, accelerates heat transfer, effectively reduces the temperature of the power supply body, and ensures the stable operation of the LED driver power supply under high temperature conditions. Second, the structure is compact, which meets the needs of miniaturization and lightweighting of driver power supplies. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the driving power supply of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the driving power supply of this utility model.

[0016] In the diagram: 1. Housing; 2. Power supply body; 3. Heat sink fins; 4. Motor; 5. Fan blades; 6. Ventilation hole; 7. Semiconductor cooling chip; 8. Heat insulation pad; 1a. Upper shell; 1b. Lower shell; 9. First magnetic clasp; 10. Second magnetic clasp; 11. Protruding ridge; 12. Column. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Reference Figures 1-2 An LED driver power supply for easy heat dissipation includes a housing 1 and a power supply body 2 fixedly installed inside the lower end of the housing 1. The housing 1 has several evenly arranged heat dissipation fins 3 fixedly installed above the power supply body 2. An air supply unit is provided at the upper end of the housing 1, and the air outlet of the air supply unit faces the heat dissipation fins 3. The air supply unit includes a motor 4 fixedly installed outside the housing 1 and a fan blade 5 connected to the output shaft of the motor 4. Ventilation holes 6 are provided on the top, bottom and the area between the heat dissipation fins 3 and the fan blade 5 of the housing 1.

[0022] Additionally, two thermoelectric coolers 7 are fixedly provided on the top of the housing 1. The two thermoelectric coolers 7 are symmetrically distributed on both sides of the motor 4, and the cold end of the thermoelectric cooler 7 faces the motor 4. When the thermoelectric cooler 7 is working, it reduces the temperature around the housing 1. Cold air is drawn into the housing 1 through the ventilation hole 6 on the top, further increasing the heat dissipation effect.

[0023] The top of the shell 1 is covered with a heat insulation pad 8, such as aerogel felt or ceramic fiber board, which helps to block the heat conduction from the external high temperature environment (such as direct sunlight in summer) to the interior of the shell 1.

[0024] The housing 1 includes an upper shell 1a and a lower shell 1b. The upper shell 1a and the lower shell 1b are detachably connected to each other, which enables quick assembly and disassembly and facilitates maintenance of the power supply unit 2 inside the housing 1.

[0025] The bottom surface of the upper shell 1a is provided with a first magnetic 9, and the top surface of the lower shell 1b is provided with a second magnetic 10. The second magnetic 10 and the first magnetic 9 are attracted to each other, and a quick connection is achieved through magnetic attraction, which is simple and fast.

[0026] The bottom surface of the upper shell 1a is integrally formed with several protruding ridges 11, and the top surface of the lower shell 1b is integrally formed with several grooves. The grooves are adapted to the protruding ridges 11, and the precise positioning is achieved by the fitting of the protruding ridges 11 and the grooves, forming a self-limiting position in the horizontal direction, which further improves the firmness of the magnetic connection between the upper shell 1a and the lower shell 1b.

[0027] The bottom of the housing 1 is fixed with several evenly spaced columns 12, and the power supply body 2 is set on the top of the columns 12. The power supply body 2 is fixed to the top of the columns 12, leaving space between it and the bottom of the housing 1 to avoid airflow obstruction and ensure heat dissipation efficiency.

[0028] Working principle: During use, the heat generated by the power supply body 2 is transferred to the heat dissipation fins 3. The motor 4 drives the fan blades 5 to rotate, forming a directional airflow. The airflow enters the interior of the housing 1 through the ventilation holes 6 at various locations on the housing 1, directly blowing on the surface of the heat dissipation fins 3. The airflow carries away the heat on the heat dissipation fins 3 and is discharged through the ventilation holes 6, forming a "air intake-heat dissipation-air exhaust" circulation path, which significantly improves heat dissipation efficiency, effectively reduces the temperature of the power supply body 2, and ensures the stable operation of the LED driver power supply under high temperature conditions.

[0029] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. An LED driver power supply with easy heat dissipation, comprising a housing (1) and a power supply body (2) disposed at the lower end inside the housing (1), characterized in that: The housing (1) has several uniformly arranged heat dissipation fins (3) above the power supply body (2). The upper end of the housing (1) is provided with an air supply unit. The air outlet of the air supply unit faces the heat dissipation fins (3). The air supply unit includes a motor (4) disposed outside the housing (1) and a fan blade (5) connected to the output shaft of the motor (4). Ventilation holes (6) are provided on the top, bottom and the area between the heat dissipation fins (3) and the fan blade (5) of the housing (1).

2. The LED driver power supply with heat dissipation as described in claim 1, characterized in that: Two semiconductor cooling chips (7) are provided on the top of the housing (1). The two semiconductor cooling chips (7) are symmetrically distributed on both sides of the motor (4), and the cold end of the semiconductor cooling chip (7) faces the motor (4).

3. The LED driver power supply with heat dissipation as described in claim 1, characterized in that: The top of the housing (1) is covered with a heat insulation pad (8).

4. The LED driver power supply with easy heat dissipation according to claim 1, characterized in that: The housing (1) includes an upper shell (1a) and a lower shell (1b), and the upper shell (1a) and the lower shell (1b) are detachably connected.

5. The LED driver power supply with easy heat dissipation according to claim 4, characterized in that: The bottom surface of the upper shell (1a) is provided with a first magnetic attractor (9), and the top surface of the lower shell (1b) is provided with a second magnetic attractor (10). The second magnetic attractor (10) is attracted to the first magnetic attractor (9).

6. The LED driver power supply with heat dissipation as described in claim 4, characterized in that: The bottom surface of the upper shell (1a) is integrally formed with a plurality of protruding ridges (11), and the top surface of the lower shell (1b) is integrally formed with a plurality of grooves, the grooves being adapted to the protruding ridges (11).

7. The LED driver power supply with heat dissipation as described in claim 1, characterized in that: The bottom of the housing (1) is provided with several columns (12) evenly spaced apart, and the power supply body (2) is provided on the top of the columns (12).

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