Compact LED driver

Abstract

The utility model relates to the technical field of LEDs, in particular to a compact LED driver which comprises a fixing seat, the fixing seat is located at the bottom end of the whole device, a shell is installed at the upper end of the fixing seat, a limiting assembly is installed on the shell, a circuit board is installed on the fixing seat, two radiators are symmetrically distributed on the circuit board, and the radiators are arranged on the circuit board. According to the device, the LED driver carries out heat dissipation treatment on parts on the circuit board through the radiator, normal use of the interior of the driver is guaranteed, when the overload protector detects that the current exceeds the rated current, the overload protector can automatically disconnect the circuit, and therefore the circuit is protected. The LED driver fixing seat and the front end of the shell are locked through the locking bolt, and the fixing seat and the rear end of the shell are fixed through the limiting assembly, so that the LED driver is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of LEDs, and in particular to a compact LED driver. Background Art

[0002] LED lighting is a new type of light source that has been rapidly developed in recent years. Its many good features make its application more and more extensive. The unidirectional conductive characteristics of LEDs require LED drivers to work. In existing LED drive circuits, especially when AC mains drives LED lamps, LED drive circuits must have rectifier filter circuits. Rectifier filter circuits require relatively large capacitance to smooth the rectified output voltage to the allowable range. Therefore, electrolytic capacitors are used in existing LED drive circuits. The biggest advantage of electrolytic capacitors is good economy. The service life of electrolytic capacitors affects the service life of the drive circuit.

[0003] The life of a capacitor depends on its internal temperature. Temperature rise is the factor that has the greatest impact on the working life of an electrolytic capacitor, so internal heat dissipation of the driver is critical. Current LED drivers need to be disassembled if they fail during use. Most current drivers are locked with multiple screws, which makes disassembly inconvenient. A compact LED driver is needed to solve this problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a compact LED driver to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a compact LED driver, comprising a fixing base, the fixing base is located at the bottom end of the entire device, a shell is installed on the upper end of the fixing base, a limit assembly is installed on the shell, a circuit board is installed on the fixing base, two heat sinks are symmetrically distributed on the circuit board, and an overheat protector and an overload protector are respectively installed at one end of the bottom end of the heat sink.

[0006] As a preferred technical solution of the utility model, a limiting cavity is installed on the limiting assembly, a spring is installed in the limiting cavity, an insertion rod is installed at one end of the spring, the insertion rod is located in the groove, and an adjusting rod is fixedly installed on the upper end of the insertion rod.

[0007] As a preferred technical solution of the utility model, a slot is provided on the fixing seat, and the slot is plugged into the plug rod on the adjusting rod.

[0008] As a preferred technical solution of the utility model, an electromagnetic interference LC filter is installed at one end of the heat sink, a varistor is installed at one end of the electromagnetic interference LC filter, and a capacitor is installed on the circuit board.

[0009] As a preferred technical solution of the utility model, a threaded hole is opened on the fixing seat, a locking bolt is installed on the threaded hole, and the locking bolt passes through the threaded hole on the shell and is threadedly connected with the fixing seat.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] (1) The utility model is a compact LED driver. The LED driver provided in the device uses a heat sink to dissipate heat from the parts on the circuit board to ensure normal use of the driver. When an overload protector is provided and detects that the current exceeds the rated current, the overload protector will automatically disconnect the circuit to protect the electrical appliance. The overheat protector can prevent the equipment from being damaged by overheating.

[0012] (2) The utility model is a compact LED driver. The LED driver fixing seat and the front end of the shell provided in the device are locked by a locking bolt, and the fixing seat and the rear end of the shell are fixed by a limit assembly, which is convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 is a schematic structural diagram of a compact LED driver according to an embodiment of the utility model;

[0015] Figure 2 This is a front view of a compact LED driver according to an embodiment of the utility model;

[0016] Figure 3 is a top view of a compact LED driver according to an embodiment of the utility model;

[0017] Figure 4 According to the utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0018] Reference numerals:

[0019] 1. Fixing seat; 2. Housing; 3. Threaded hole; 4. Locking bolt; 5. Circuit board; 6. Radiator; 7. Electromagnetic interference LC filter; 8. Varistor; 9. Capacitor; 10. Overheat protector; 11. Overload protector; 12. Limiting assembly; 13. Limiting cavity; 14. Insert rod; 15. Slot; 16. Spring; 17. Adjusting rod; 18. Groove. DETAILED DESCRIPTION

[0020] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0021] Example 1

[0022] See also Figure 1 and Figure 3 Embodiment 1 is described, comprising a seat 1, the fixing seat 1 is located at the bottom end of the whole device, a housing 2 is mounted on the upper end of the fixing seat 1, a limit assembly 12 is mounted on the housing 2, a circuit board 5 is mounted on the fixing seat 1, two heat sinks 6 are symmetrically distributed on the circuit board 5, an overheat protector 10 and an overload protector 11 are mounted on the bottom end of the heat sink 6, an electromagnetic interference LC filter 7 is mounted on one end of the electromagnetic interference LC filter 7, a varistor 8 is mounted on one end of the electromagnetic interference LC filter 7, a capacitor 9 is mounted on the circuit board 5, a threaded hole 3 is opened on the fixing seat 1, a locking bolt 4 is mounted on the threaded hole 3, and the locking bolt 4 passes through the threaded hole 3 on the housing 2 and is threadedly connected to the fixing seat 1;

[0023] In this embodiment, when the overload protector 11 detects that the current exceeds the rated current, the overload protector 11 will automatically disconnect the circuit to protect the electrical appliance. The setting of the overheat protector 10 can prevent the equipment from overheating and damage, and play a role in monitoring the temperature.

[0024] Example 2

[0025] See also Figure 2 and Figure 4 Example 2 is described. This embodiment further describes Example 1, including a limit cavity 13 installed on the limit assembly 12, a spring 16 installed in the limit cavity 13, an insertion rod 14 installed at one end of the spring 16, the insertion rod 14 is located on the groove 18, an adjustment rod 17 is fixedly installed on the upper end of the insertion rod 14, a slot 15 is opened on the fixed seat 1, and the slot 15 is plugged with the insertion rod 14 on the adjustment rod 17;

[0026] In this embodiment, the setting of the limit assembly 12 can be used to disassemble the outer shell 2 and the fixed base 1. The insertion rod is moved by manually controlling the adjusting rod 17. The insertion rod 14 automatically returns to its original position and is inserted into the slot 15 by the action of the spring 16 to act as a limit. When the outer shell 2 needs to be disassembled, just pull the adjusting rod.

[0027] In specific applications, heat sinks 6 are installed on both sides of the circuit board of the LED driver set in the device. The heat sink 6 is used to dissipate heat for the parts on the circuit board 5 to ensure the normal use of the driver. When the LED driver is turned on, a high transient current will be generated. Because the capacitor 9 needs to be loaded, ignition occurs almost simultaneously, which will also cause a safe circuit to withstand the current. When the overload protector 11 detects that the current exceeds the rated current, the overload protector 11 will automatically disconnect the circuit to protect the electrical appliance. The setting of the overheat protector 10 can prevent the equipment from being damaged by overheating and play a role in monitoring the temperature, thereby improving the safety of the equipment. The LED driver fixing seat 1 and the front end of the shell 2 are locked by the locking bolt 4, and the fixing seat 1 and the rear end of the shell 2 are fixed by the limit assembly 12. The rod is moved by manually controlling the adjusting rod 17, and the rod 14 automatically returns to the slot 15 through the action of the spring 16 to limit the rod. When the shell 2 needs to be disassembled, just pull the adjusting rod, which is simple and convenient and suitable for popularization.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A compact LED driver, characterized in that: The device comprises a fixing seat (1), wherein the fixing seat (1) is located at the bottom end of the entire device, a housing (2) is mounted on the upper end of the fixing seat (1), a limit assembly (12) is mounted on the housing (2), a circuit board (5) is mounted on the fixing seat (1), two heat sinks (6) are symmetrically distributed on the circuit board (5), and an overheating protector (10) and an overload protector (11) are respectively mounted on the bottom end of the heat sink (6).

2. A compact LED driver according to claim 1, characterized in that: A limiting cavity (13) is installed on the limiting assembly (12), a spring (16) is installed in the limiting cavity (13), an insertion rod (14) is installed at one end of the spring (16), the insertion rod (14) is located on the groove (18), and an adjustment rod (17) is fixedly installed on the upper end of the insertion rod (14).

3. A compact LED driver according to claim 2, characterized in that: The fixing seat (1) is provided with a slot (15), and the slot (15) is plugged into the plug rod (14) on the adjusting rod (17).

4. A compact LED driver according to claim 1, characterized in that: An electromagnetic interference LC filter (7) is installed at one end of the heat sink (6), a varistor (8) is installed at one end of the electromagnetic interference LC filter (7), and a capacitor (9) is installed on the circuit board (5).

5. The compact LED driver according to claim 1, characterized in that: The fixing seat (1) is provided with a threaded hole (3), a locking bolt (4) is installed on the threaded hole (3), and the locking bolt (4) passes through the threaded hole (3) on the housing (2) and is threadedly connected to the fixing seat (1).

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