A GBPC square bridge processing technology based on matrix sheet

Abstract

The invention discloses a GBPC square bridge processing technology based on a matrix type sheet, comprising the following steps: S1, cutting a copper sheet to form a sheet, on which a bridge sheet group arranged in an array is arranged, wherein a bridge sheet group comprises four bridge sheets, the bridge sheets are separated from each other, and the bridge sheets are connected to the frame of the sheet through at least one connecting handle; S2, placing the sheet in a mounting groove on the surface of a welding plate, and screen printing a primer on the surface; S3, assembling a chip, a jumper, and a pin on the bridge sheet in the welding plate in sequence, and performing welding and fixing; S4, removing the sheet from the welding plate, cutting the connecting handle, separating the bridge sheet from the frame, and forming a plurality of rectifier components; S5, processing a plastic-sealed shell on the rectifier component, and completing the processing of the GBPC square bridge. Compared with the prior art, the invention improves the processing efficiency of the GBPC square bridge, reduces the processing difficulty, and reduces the cost.

Description

Technical Field

[0001] The invention belongs to the field of rectifier bridge processing, and in particular relates to a GBPC square bridge processing technology based on matrix type sheets. Background Art

[0002] The core of the GBPC rectifier bridge (square general package rectifier bridge) is the rectifier component that can convert AC power into DC power. The rectifier component generally includes a lead frame and four rectifier diode chips, two positive and two negative, welded on the lead frame. Four leads are connected to the circuit from the lead frame.

[0003] During the processing of the existing GBPC square bridge, the four metal plates (of different shapes) that make up the lead frame need to be placed in the corresponding mounting grooves on the welding plate first. In order to improve the processing efficiency, multiple lead frames are processed on one welding plate at the same time, so several mounting grooves are set on the welding plate. During processing, the four metal plates are placed one by one in the corresponding mounting grooves, which is difficult and inefficient. At the same time, the four metal plates need to be stored and transported in different categories, resulting in high costs. Summary of the invention

[0004] The purpose of the present invention is to provide a GBPC square bridge processing technology based on a matrix sheet, improve the processing efficiency of the GBPC square bridge, reduce the processing difficulty and reduce the cost.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a GBPC square bridge processing technology based on a matrix sheet, comprising the following steps:

[0006] S1, cutting the copper sheet into a sheet, on which a bridge sheet group arranged in an array is provided, wherein one bridge sheet group includes four bridge sheets, the bridge sheets are separated from each other, and the bridge sheets are connected to the frame of the sheet through at least one connecting handle;

[0007] S2, placing the sheet in the mounting groove on the surface of the welding plate, and screen printing the primer on the surface;

[0008] S3, assembling chips, jumpers, and pins on the bridge piece in the welding board in sequence, and welding and fixing them;

[0009] S4, removing the sheet from the welding plate, cutting the connecting handle, separating the bridge sheet from the frame, and forming a plurality of rectifier assemblies;

[0010] S5. Process the plastic shell on the rectifier assembly and complete the GBPC square bridge processing.

[0011] As a further description of the above technical solution:

[0012] In step S1, two connection handles are provided on a bridge piece.

[0013] As a further description of the above technical solution:

[0014] In step S1, two connecting handles are perpendicular to each other.

[0015] As a further description of the above technical solution:

[0016] In step S2, chamfers are provided at the four inner corners of the mounting groove.

[0017] As a further description of the above technical solution:

[0018] In step S1 , the thickness of the copper sheet is 0.3 mm.

[0019] As a further description of the above technical solution:

[0020] In step S5, the rectifier assembly is placed in a molding die, and an epoxy molding compound is used to compression mold a plastic packaging shell.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the present invention, when processing the sheet, the sheet is no longer cut into 4 scattered bridge pieces, but the 4 bridge pieces formed by cutting are fixed on the frame of the sheet through connecting handles. The 4 bridge pieces required for a rectifier bridge form a bridge piece group. The sheet is provided with an array-arranged bridge piece group, which avoids the need for classified storage and transportation of bridge pieces, reduces costs, and facilitates the assembly of bridge pieces and welding plates, reduces processing difficulty, and improves the processing efficiency of GBPC square bridges.

[0023] 2. In the present invention, two connecting handles are provided on a bridge piece, and the two connecting handles are perpendicular to each other. The two connecting handles are respectively provided on two adjacent right-angled sides on the frame to firmly position each bridge piece, prevent the position of the bridge piece from changing, and ensure the processing quality of the rectifier bridge (GBPC square bridge). BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the sheet in the GBPC square bridge processing technology based on the matrix sheet.

[0026] Figure 2It is a structural schematic diagram of the welding plate in the GBPC square bridge processing technology based on matrix sheet.

[0027] Legend:

[0028] 1. Material piece; 11. Bridge piece; 12. Connecting handle; 13. Frame; 2. Welding plate; 21. Mounting groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-2 The present invention provides a technical solution: a GBPC square bridge processing technology based on a matrix type sheet, comprising the following steps:

[0031] S1, cutting a copper sheet into a material sheet 1, on which a bridge sheet group arranged in an array is provided, wherein one bridge sheet group includes four bridge sheets 11 (the four bridge sheets 11 have different shapes, or can be said to be four types of bridge sheets 11), the bridge sheets 11 are separated from each other, and the bridge sheets 11 are connected to a frame 13 of the material sheet 1 through at least one connecting handle 12;

[0032] S2, placing the sheet 1 in the mounting groove 21 on the surface of the welding plate 2, and screen printing the primer on the surface;

[0033] S3, assembling chips, jumpers, and pins on the bridge sheet 11 in the welding board 2 in sequence, and fixing them by welding;

[0034] S4, removing the sheet 1 from the welding plate 2, cutting the connecting handle 12, so that the bridge piece 11 is separated from the frame 13, and forming a plurality of rectifier components;

[0035] S5. Process the plastic shell on the rectifier assembly and complete the GBPC square bridge processing.

[0036] In step S1, two connecting handles 12 are provided on a bridge piece 11 to firmly position each bridge piece 11, prevent the position of the bridge piece 11 from changing, and ensure the processing quality of the rectifier bridge.

[0037] In step S1, the two connecting handles 12 are perpendicular to each other and are respectively arranged on two adjacent right-angled sides of the frame 13 to firmly position each bridge piece 11, prevent the position of the bridge piece 11 from changing, and ensure the processing quality of the rectifier bridge.

[0038] In step S2 , chamfers are provided at the four inner corners of the installation groove 21 , and chamfers are correspondingly performed at the four outer corners of the sheet 1 . The sheet 1 matches the installation groove 21 , which facilitates the assembly of the sheet 1 and the welding plate 2 .

[0039] In step S1, the thickness of the copper sheet is 0.3 mm, which is of appropriate thickness, easy to process and not easy to deform, thus ensuring the processing quality of the rectifier bridge.

[0040] In step S5, the rectifier assembly is placed in a molding die, and an epoxy molding compound is used to perform compression molding to form a plastic packaging shell, thereby improving the stability and insulation of the plastic packaging shell.

[0041] Working principle: When processing the sheet, the sheet is no longer cut into 4 scattered bridge pieces, but the 4 bridge pieces formed by cutting are fixed on the frame of the sheet through connecting handles. The 4 bridge pieces required for a rectifier bridge form a bridge piece group. The sheet is provided with a bridge piece group arranged in an array, which avoids the need for classified storage and transportation of bridge pieces, reduces costs, and facilitates the assembly of bridge pieces and welding plates, reduces processing difficulty, and improves the processing efficiency of GBPC square bridges. Two connecting handles are provided on a bridge piece, and the two connecting handles are perpendicular to each other. The two connecting handles are respectively arranged on two adjacent right-angled edges on the frame, firmly positioning each bridge piece, preventing the position of the bridge piece from changing, and ensuring the processing quality of the rectifier bridge (GBPC square bridge). The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and its inventive concept of the present invention, is equivalently replaced or changed, which should be covered within the protection scope of the present invention.

Claims

1. A GBPC square bridge processing technology based on matrix type sheet, characterized in that: The following steps are involved: S1. Cutting a copper sheet into a material sheet (1), wherein the material sheet (1) is provided with a bridge sheet group arranged in an array, wherein one bridge sheet group comprises four bridge sheets (11), wherein the bridge sheets (11) are separated from each other, and the bridge sheets (11) are connected to a frame (13) of the material sheet (1) via at least one connecting handle (12); S2, placing the material sheet (1) in a mounting groove (21) on the surface of the welding plate (2), and screen-printing a primer on the surface; S3, assembling chips, jumpers, and pins in sequence on the bridge sheet (11) in the welding plate (2), and fixing them by welding; S4, removing the material sheet (1) from the welding plate (2), cutting the connecting handle (12), so that the bridge sheet (11) is separated from the frame (13), and forming a plurality of rectifying components; S5, processing a plastic-sealed housing on the rectifier assembly to complete GBPC square bridge processing; In the step S1, two connecting handles (12) are provided on one of the bridge pieces (11), and the two connecting handles (12) are perpendicular to each other.

2. A GBPC square bridge processing technology based on matrix type sheet according to claim 1, characterized in that: In the step S2, chamfers are provided at the four inner corners of the mounting groove (21).

3. The GBPC square bridge processing technology based on matrix type sheet according to claim 1 is characterized in that: In the step S1, the thickness of the copper sheet is 0.3 mm.

4. The GBPC square bridge processing technology based on matrix type sheet according to claim 1 is characterized in that: In the step S5, the rectifier assembly is placed in a molding die, and the plastic package shell is compression molded in one step using epoxy molding compound.

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