Controller of LED lamp

Abstract

The utility model discloses a controller of a light-emitting diode (LED) lamp, which comprises a metal shell, a circuit board arranged on the bottom wall of the shell, a metal oxide semiconductor (MOS) tube arranged on the circuit board and other electronic elements, the circuit board is arranged on the bottom wall of the shell through screws, the MOS tube is horizontally arranged between the circuit board and the bottom wall of the shell, and the other electronic elements are arranged on the circuit board. And the circuit board is used for tightly pressing the MOS tube on the bottom wall of the shell. According to the utility model, the MOS tube is horizontally arranged on the circuit board, and the circuit board is adopted to tightly press the MOS tube on the bottom wall of the shell, so that the side wall of the shell does not need to be punched, and screws and pressing plates do not need to be adopted, and the utility model has the advantages of few installation parts, simple installation process and attractive appearance of the shell.

Description

Technical Field

[0001] The utility model relates to an LED lamp accessory, and specifically discloses a controller of the LED lamp. Background Art

[0002] High-power LED lamp controllers generally require external MOS tubes, but MOS tubes generate a lot of heat. If the heat cannot be conducted away in time, its life will be seriously affected or even burned out. Figure 4 The existing LED lamp controller includes a metal shell 01, a circuit board 02 is installed in the shell, and a MOS tube 03 and other electronic components 04 are installed on the circuit board. The MOS tube 03 is installed vertically on the circuit board 02, and the MOS tube 03 is pressed against the side wall of the shell 01 by screws 05 and a pressure plate 06, so as to ensure good thermal conductivity between the MOS tube and the metal shell. Since the MOS tube 03 needs to be pressed by screws 05 and a pressure plate 06, the installation method has the following disadvantages: there are many installation parts, the installation process is complicated, and the screw head is exposed outside the shell, which makes the product unsightly. Utility Model Content

[0003] Based on this, it is necessary to provide a controller for an LED lamp with fewer installation components, simple installation process and beautiful appearance in order to solve the problems in the prior art.

[0004] To solve the problems of the prior art, the utility model discloses a controller for an LED lamp, comprising a metal shell, a circuit board mounted on the bottom wall of the shell, a MOS tube and other electronic components mounted on the circuit board, the circuit board being mounted on the bottom wall of the shell by means of screws, the MOS tube being horizontally mounted between the circuit board and the bottom wall of the shell, and the circuit board pressing the MOS tube against the bottom wall of the shell.

[0005] As a further improvement of the utility model: the MOS tube is installed in the center of the circuit board, the screws are installed around the circuit board, the circuit board is pressed around by the screws, and the center is resisted by the MOS tube, forming an arc centered on the position of the MOS tube. Thermal conductive silicone grease is filled between the MOS tube and the bottom wall of the shell. The other electronic components are installed on the other side of the circuit board opposite to the MOS tube. A fixing column is provided on the bottom wall, and a threaded hole is provided in the fixing column. The screw fixes the circuit board to the bottom wall through the threaded hole.

[0006] The beneficial effects of the utility model are as follows: since the MOS tube is horizontally installed on the circuit board and the circuit board is used to press the MOS tube against the bottom wall of the shell, there is no need to drill holes in the side wall of the shell, and no need to use screws and pressing plates. The utility model has the advantages of fewer installation parts, simple installation process and beautiful shell appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the assembly structure of the utility model.

[0008] Figure 2 It is a schematic diagram of the structure of the utility model after assembly.

[0009] Figure 3 for Figure 2 Schematic diagram of the structure of the AA section.

[0010] Figure 4 It is a structural diagram of an existing LED lamp controller. DETAILED DESCRIPTION

[0011] In order to further understand the features, technical means, specific purposes and functions of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. The description of the positional relationship between the components and the components in the utility model (including but not limited to up, down, left, right, inside, outside, etc.) is a definition based on the position state of the components shown in the accompanying drawings. Its purpose is to facilitate the description and understanding of the mechanical structure of the components, and does not represent an absolute limitation on the scope of protection of the utility model; those skilled in the art can understand that when the placement direction of the components in the view changes, the description of the positional relationship may change, but the mechanical structure of the components has not changed essentially.

[0012] refer to Figure 1 A controller for an LED lamp comprises a metal housing 1, a circuit board 2 mounted on a bottom wall 11 of the housing, a MOS tube 3 and other electronic components 4 mounted on the circuit board 2.

[0013] refer to Figures 1 to 3. The shell 1 is generally formed by extrusion of aluminum material, and includes a bottom wall 11 and a side wall 12. The bottom wall 11 is provided with fixing columns 13 around it, and the fixing columns 13 are provided with threaded holes 14. The MOS tube 3 is horizontally installed at the central position on the back of the circuit board 2, and the other electronic components 4 are installed on the front of the circuit board 2. The circuit board 2 is provided with mounting holes 21 corresponding to the threaded holes 14 around it. When the height of the other electronic components 4 is less than that of the MOS tube 3, the other electronic components 4 and the MOS tube 3 can also be installed on the back of the circuit board 2. The utility model preferably installs the MOS tube 3 and the other electronic components 4 on both sides of the circuit board 2 respectively, so that the heat impact on the other electronic components 4 can be reduced, and it is also convenient for the installation and heat dissipation of the MOS tube 3. The back of the circuit board 2 faces the bottom wall 11 of the shell, and the circuit board 2 is fixed to the threaded hole 14 of the bottom wall of the shell by screws 5 passing through the mounting holes 21 of the circuit board 21. In this way, the back of the circuit board 2 presses the MOS tube 3 against the bottom wall 11. The fixing column 13 can suspend the circuit board 2, and form a gap slightly smaller than the thickness of the MOS tube 3 between the back of the circuit board 2 and the bottom wall 11 of the shell. Since the front of the circuit board 2 is pressed by the screws 5 on all sides and the back center is resisted by the MOS tube 3, an appropriate amount of elastic deformation is generated to form an arc with the position of the MOS tube 3 as the center and the position of the screw 5 as the end point. In this way, the thermal conductivity performance of the MOS tube 3 and the bottom wall 11 of the shell can be made more efficient and durable. In order to further enhance the thermal conductivity, thermal grease 6 can also be applied between the MOS tube 3 and the bottom wall 11 of the shell. The utility model uses screws to install the circuit board, which is more firmly installed. Compared with the clamping, there is no need to reserve a rebound space, and it is easier to open the gap between it and the bottom wall of the shell.

[0014] The utility model installs the MOS tube horizontally on the circuit board, and uses the circuit board to press the MOS tube against the bottom wall of the shell, so there is no need to drill holes in the side wall of the shell, and no need to use screws and pressing plates. The utility model has the advantages of fewer installation parts, simple installation process and beautiful shell appearance.

[0015] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A controller for an LED lamp, comprising a metal housing, a circuit board mounted on the bottom wall of the housing, a MOS tube and other electronic components mounted on the circuit board, characterized in that: The circuit board is mounted on the bottom wall of the shell by means of screws, the MOS tube is horizontally mounted between the circuit board and the bottom wall of the shell, and the circuit board presses the MOS tube tightly against the bottom wall of the shell.

2. The controller of an LED lamp according to claim 1, characterized in that: The MOS tube is installed in the center of the circuit board, and the screws are installed around the circuit board. The circuit board is pressed around by the screws and the center is resisted by the MOS tube, forming an arc centered on the position of the MOS tube.

3. The controller of an LED lamp according to claim 1, characterized in that: Thermal conductive silicone grease is filled between the MOS tube and the bottom wall of the shell.

4. The controller of an LED lamp according to claim 1, characterized in that: The other electronic components are mounted on the other side of the circuit board opposite to the MOS tube.

5. The controller of an LED lamp according to claim 1, characterized in that: The bottom wall is provided with a fixing column, in which a threaded hole is provided, and the screw fixes the circuit board on the bottom wall through the threaded hole.

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