Electromagnetic compatibility circuit board

Abstract

The utility model discloses an electromagnetic compatibility circuit board, which belongs to the technical field of lamps and comprises an aluminum substrate, an electrical element and rivets, and the electrical element is arranged on the upper surface of the aluminum substrate. The electrical elements form a driving circuit through wiring, and the driving circuit is provided with a grounding end; the rivet penetrates through the aluminum substrate, the upper end of the rivet is electrically connected with the grounding end, and the lower end of the rivet is electrically connected with the lower surface of the aluminum substrate. The electromagnetic compatibility circuit board solves the problem that the brightness of an existing LED lamp is flicker due to the fact that the existing LED lamp is easily interfered by electromagnetic interference of other electric equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to an electromagnetic compatible circuit board. Background Art

[0002] DoB (DriveronBoard) removes the traditional AC / DC conversion and integrates the LED driving circuit and the LED light string circuit. It is a new driving method derived from the characteristics of LED. Currently, there are more and more integrated applications of DOB driving light sources in the market, but due to the EMC interference problem of the aluminum substrate, the brightness of the LED lamp will flicker. Utility Model Content

[0003] In order to overcome the defects in the prior art, the utility model provides an electromagnetic compatibility circuit board to solve the above problems.

[0004] The technical solution adopted by the utility model to solve the technical problem is: an electromagnetic compatible circuit board, comprising an aluminum substrate, an electrical component and a rivet, wherein the electrical component is arranged on the upper surface of the aluminum substrate;

[0005] The electrical elements are wired to form a drive circuit, and the drive circuit is provided with a ground terminal;

[0006] The rivet is arranged to penetrate the aluminum substrate, the upper end of the rivet is electrically connected to the ground end, and the lower end of the rivet is electrically connected to the lower surface of the aluminum substrate.

[0007] It is worth noting that it also includes an insulating layer, which is arranged on the upper surface of the aluminum substrate, the electrical components are arranged on the upper surface of the insulating layer, and the rivets pass through the insulating layer and the aluminum substrate in sequence and are electrically connected to the lower surface of the aluminum substrate.

[0008] Optionally, it further includes a wiring layer, which is arranged on the upper surface of the insulating layer, and the electrical components are electrically connected through the wiring layer to form a driving circuit.

[0009] Specifically, the wiring layer is metal copper.

[0010] Preferably, the aluminum substrate is provided with a through hole, and the through hole penetrates the aluminum substrate from top to bottom, and the rivet is electrically connected to the lower surface of the aluminum substrate after passing through the through hole.

[0011] It is worth noting that the aluminum substrate is evenly distributed with a plurality of mounting openings, so that the aluminum substrate can be mounted on the base after screws pass through the mounting openings.

[0012] The beneficial effect of the utility model is that in the electromagnetic compatibility circuit board, the grounding end of the driving circuit is guided to the aluminum substrate by rivets and then electrically connected to the aluminum substrate, which has an electrostatic shielding effect and effectively avoids the EMC interference problem of the aluminum substrate, thereby ensuring that the LED lamp can work stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an electromagnetic compatibility circuit board in one embodiment of the utility model;

[0014] Figure 2 An exploded view of an electromagnetic compatibility circuit board in one embodiment of the utility model;

[0015] Figure 3 A cross-sectional view of an electromagnetic compatibility circuit board in one embodiment of the utility model;

[0016] In the figure: 1 aluminum substrate; 11 through hole; 12 mounting opening; 2 insulation layer; 3 wiring layer; 4 electrical component; 5 ground terminal. DETAILED DESCRIPTION

[0017] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] like Figure 1-3 As shown, an electromagnetic compatible circuit board includes an aluminum substrate 1, an electrical component 4 and a rivet, wherein the electrical component 4 is arranged on the upper surface of the aluminum substrate 1;

[0019] The electrical element 4 forms a driving circuit through wiring, and the driving circuit is provided with a ground terminal 5;

[0020] The rivet is disposed through the aluminum substrate 1 , the upper end of the rivet is electrically connected to the ground terminal 5 , and the lower end of the rivet is electrically connected to the lower surface of the aluminum substrate 1 .

[0021] In the electromagnetic compatibility circuit board, the ground terminal 5 of the driving circuit is guided to the aluminum substrate 1 by rivets and then electrically connected to the aluminum substrate 1, which has an electrostatic shielding effect and effectively avoids the EMC interference problem of the aluminum substrate, thereby ensuring that the LED lamp can work stably.

[0022] It is worth noting that it also includes an insulating layer 2, which is arranged on the upper surface of the aluminum substrate 1, and the electrical component 4 is arranged on the upper surface of the insulating layer 2, and the rivet passes through the insulating layer 2 and the aluminum substrate 1 in sequence and is electrically connected to the lower surface of the aluminum substrate 1. The insulating layer 2 is made of an insulating material, so that, except for the ground terminal 5 of the electrical component 4 which can be electrically connected to the lower surface of the aluminum substrate 1, other ports can be insulated from the aluminum substrate 1, thereby avoiding a short circuit in the driving circuit.

[0023] Preferably, it further comprises a wiring layer 3, wherein the wiring layer 3 is arranged on the upper surface of the insulating layer 2, and the electrical components 4 are electrically connected through the wiring layer 3 to form a driving circuit.

[0024] Optionally, the wiring layer 3 is made of metal copper. By utilizing the conductive property of metal copper, the electrical components 4 that need to be connected can be connected, thereby forming a driving circuit that can be electrically connected to drive the LED lamp to work.

[0025] Specifically, the aluminum substrate 1 is provided with a through hole 11, and the through hole 11 penetrates the aluminum substrate 1 from top to bottom, and the rivet is electrically connected to the lower surface of the aluminum substrate 1 after passing through the through hole 11. The through hole 11 can facilitate the rivet to be inserted, so that the rivet can pass from the upper surface of the aluminum substrate 1 to the lower surface of the aluminum substrate 1.

[0026] It is worth noting that the aluminum substrate 1 is evenly distributed with a plurality of mounting openings 12, so that the aluminum substrate 1 can be mounted on the base after screws pass through the mounting openings 12. Mounting the circuit board in the base can effectively protect the circuit board from external damage. The mounting openings 12 cooperate with the screw holes of the base, so that the circuit board can be locked in the base by screws.

[0027] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An electromagnetic compatible circuit board, characterized in that: It includes an aluminum substrate, an electrical component and a rivet, wherein the electrical component is arranged on the upper surface of the aluminum substrate; The electrical elements are wired to form a drive circuit, and the drive circuit is provided with a ground terminal; The rivet is arranged to penetrate the aluminum substrate, the upper end of the rivet is electrically connected to the ground end, and the lower end of the rivet is electrically connected to the lower surface of the aluminum substrate.

2. The electromagnetic compatible circuit board according to claim 1, characterized in that: It also includes an insulating layer, which is arranged on the upper surface of the aluminum substrate. The electrical components are arranged on the upper surface of the insulating layer. The rivets pass through the insulating layer and the aluminum substrate in sequence and are electrically connected to the lower surface of the aluminum substrate.

3. The electromagnetic compatible circuit board according to claim 2, characterized in that: It also includes a wiring layer, which is arranged on the upper surface of the insulating layer, and the electrical elements are electrically connected through the wiring layer to form a driving circuit.

4. The electromagnetic compatible circuit board according to claim 3, characterized in that: The wiring layer is made of metal copper.

5. The electromagnetic compatible circuit board according to claim 1, characterized in that: The aluminum substrate is provided with a through hole, and the through hole penetrates the aluminum substrate from top to bottom. The rivet passes through the through hole and is electrically connected to the lower surface of the aluminum substrate.

6. The electromagnetic compatible circuit board according to claim 1, characterized in that: The aluminum substrate is evenly distributed with a plurality of mounting openings, so that the aluminum substrate can be mounted on the base after screws pass through the mounting openings.

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