A mounting structure of a PCB board large-current conductor

Abstract

The utility model relates to a mounting structure of PCB board large current conductor, this mounting structure includes metal base, PCB board, large current conductor and upper shell, the recessed groove for the large current conductor inlay is integrally arranged on the metal base, the PCB board sets up on the upper surface of metal base, the utility model discloses through embedding the large current conductor on the PCB board into the recessed groove inside the metal base, realizes the all -round metal surrounding and shielding of large current conductor, effectively avoids the electric field, magnetic field signal radiation to outside of the current on the large current conductor, realizes better EMC shielding effect.

Description

Technical Field

[0001] This utility model belongs to the field of PCB board design technology, specifically relating to an installation structure for high-current conductors on a PCB board. Background Technology

[0002] In the design of high-power products such as motor controllers, chargers, and power converters, there is often a requirement for conducting large currents on the PCB. Existing high-current conductors, such as current-conducting strips, are mounted on the PCB, conducting the large current from point "A" to point "B" on the PCB. Traditional designs directly conduct the large current from point "A" to point "B" on the PCB through conductive copper busbars. This design exposes the high-current conductor directly in an unshielded space. The electric and magnetic fields of the large current can strongly interfere with nearby signals on the PCB, causing other signal and control traces on the PCB to couple with a large amount of current and voltage noise. This noise interference can lead to the failure of the circuit function on the PCB. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this invention is to provide a mounting structure for high current conductors on PCB boards.

[0004] This utility model is achieved using the following technical solution:

[0005] A mounting structure for a high-current conductor on a PCB board includes a metal base, a PCB board, a high-current conductor, and an upper shell. The metal base has an integrally formed groove for embedding the high-current conductor, and the PCB board is mounted on the upper surface of the metal base.

[0006] Furthermore, the groove is a rectangular groove with an opening at the top, and the rectangular groove has five metal surfaces: front, back, left, right, and bottom.

[0007] Furthermore, the GND "ground" plane within the PCB board is correspondingly positioned at the opening of the groove.

[0008] Furthermore, after the two ends of the high-current conductor are bent, they are soldered to the PCB board through soldering points A and B on the PCB board.

[0009] Furthermore, the high-current conductor soldered on the PCB extends downward into the groove, maintaining a safe installation distance from the inner circumferential wall of the groove.

[0010] This invention embeds a high-current conductor on a PCB board into a groove in a metal base, achieving all-around metal enclosure and shielding of the high-current conductor. This effectively prevents the electric and magnetic field signals generated by the current on the high-current conductor from radiating to the outside, thus achieving a better EMC shielding effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the installation structure of this utility model;

[0012] Figure 2 for Figure 1 A sectional view;

[0013] In the diagram, 1-metal base, 2-PCB board, 3-high current conductor, 4-upper shell, 5-groove. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings to provide a better understanding of the technical solution.

[0015] like Figure 1-2 As shown, this utility model discloses a mounting structure for a high-current conductor on a PCB board. The mounting structure includes a metal base 1, a PCB board 2, a high-current conductor 3, and an upper shell 4. The metal base 1 is integrally provided with a groove 5 for embedding the high-current conductor 3. The groove 5 is a rectangular groove with an opening at the top and has five metal surfaces: front, back, left, right, and bottom. The PCB board 2 is placed on the upper surface of the metal base 1, and the GND "ground" plane inside the PCB board 2 is correspondingly set at the opening of the groove 5.

[0016] The specific installation structure of the high current conductor 3 is as follows: after the two ends of the high current conductor 3 are bent, they are welded to the PCB board 2 through the welding points A and B on the PCB board 2. The high current conductor 3 welded to the PCB board 2 extends downward into the groove 5 and maintains a safe installation distance from the inner peripheral wall of the groove 5.

[0017] This invention embeds a high-current conductor 3 on a PCB board 2 into a groove 5 in a metal base 1, maintaining a safety-compliant distance from the inner wall of the groove 5. After installation, the high-current conductor 3 is surrounded by six metal planes: the five metal surfaces of the groove 5 in the metal base 1 and the GND "ground" plane within the PCB board 2. This achieves omnidirectional metal plane enclosure of the high-current conductor 3, preventing the electric and magnetic fields generated by the high current on the conductor 3 from affecting or interfering with the signal and control traces on the PCB board 2 above. With four metal planes providing metal enclosure and shielding for the high-current conductor, plus the metal planes at both ends of the conductor, the high-current conductor (such as a current guide) is completely surrounded by six omnidirectional metal planes in space. This achieves both the design requirement for high-current conduction and metal shielding of the high-current conductor, preventing its electric and magnetic fields from interfering with other signals on the PCB above, thus achieving excellent EMC shielding.

Claims

1. A mounting structure for high-current conductors on a PCB board, characterized in that, The mounting structure includes a metal base (1), a PCB board (2), a high-current conductor (3) and an upper shell (4). The metal base (1) is integrally provided with a groove (5) for embedding the high-current conductor (3), and the PCB board (2) is disposed on the upper surface of the metal base (1).

2. The mounting structure for a high-current conductor on a PCB board as described in claim 1, characterized in that... The groove (5) is a rectangular groove with an opening at the top, and the rectangular groove has five metal surfaces: front, back, left, right and bottom.

3. The mounting structure for a high-current conductor on a PCB board as described in claim 1, characterized in that, The GND "ground" plane in the PCB board (2) is correspondingly set at the opening of the groove (5).

4. The mounting structure for a high-current conductor on a PCB board as described in claim 1, characterized in that, The high-current conductor (3) is bent at both ends and then welded to the PCB board (2) through the A and B welding points on the PCB board (2).

5. The mounting structure for a high-current conductor on a PCB board as described in claim 4, characterized in that, The high-current conductor (3) soldered on the PCB board (2) extends downward into the groove (5) and maintains a safe installation distance from the inner wall of the groove (5).

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