High-voltage large-current rectification module

Abstract

The utility model provides a high-voltage large-current rectifier module, which comprises a plurality of diodes. The plurality of diodes are connected end to end through the connecting sheets, the unconnected ends of the diodes at the head and the tail are respectively connected with a lead through one connecting sheet, the plurality of diodes are arranged in parallel to form a straight line, the lead extends along the arrangement direction of the diodes, and all the connecting sheets and the diodes are wrapped by a plastic package shell. According to the utility model, the glass blunt tubes can be tightly arranged in the plastic package housing through the copper connecting sheets, and the plastic package housing can effectively protect internal devices, thereby avoiding the problem of voltage air breakdown of a rectification product under a high-voltage condition caused by environmental factors, effectively improving the reliability of the devices, and improving the reliability of the rectification product. Therefore, high voltage and large current are realized, and the miniaturization and integration requirements of the product are met at the same time.

Description

Technical Field

[0001] The utility model relates to a high-voltage and high-current rectification module. Background Art

[0002] Glass passivated diodes (referred to as glass passivated diodes) are widely used in various electronic fields due to their high quality reliability, small size, and light weight. With the development of electronic technology, electronic equipment is rapidly developing towards miniaturization, integration, and high density, and the glass diode products used in conjunction with them also need to develop towards integrated and modular design. In the prior art, the glass passivated package with electrode sheets in the form of diode packaging is large in size and has a large assembly spacing. When the circuit needs to realize the rectification function of high voltage and high current, multiple glass passivated products are connected in series. Considering the volume and assembly spacing, it is difficult to achieve miniaturization, integration, and high-density integration of the product. For example, a three-terminal rectifier circuit module and its manufacturing method with announcement number CN113707632B connects one end of all diodes through a common electrode metal substrate, and the other end is connected separately using a separate metal substrate, but its connection structure wraps the motors at both ends of the diode instead of clamping them, so its packaging volume will increase due to the volume of the metal substrate, and its stability is poor after the diodes are assembled with the metal substrate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a high-voltage and high-current rectifier module.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a high-voltage and high-current rectifier module, comprising a plurality of diodes; the plurality of diodes are connected end to end via a connecting piece, the unconnected ends of the diodes at the end are respectively connected to a lead wire via a connecting piece, the plurality of diodes are arranged in parallel in a straight line, the lead wire extends along the arrangement direction of the diodes, and all the connecting pieces and diodes are wrapped by a plastic package shell.

[0006] The diode comprises a tube core, two ends of the tube core are respectively fixed with electrodes, and the side walls of the electrodes are wrapped with solder.

[0007] The connecting piece is a square flat plate, and through holes are processed at both ends of the connecting piece. The two through holes are used to fix two adjacent electrodes respectively.

[0008] The two ends of the connecting piece are also processed with notches to connect with the connecting piece.

[0009] The lead wire is an "L"-shaped round rod, the short side of which is vertically fixed in the through hole of the connecting piece by solder, and the long side is parallel to the connecting piece.

[0010] The beneficial effect of the utility model is that the glass blunt tube can be closely arranged in the plastic shell through the copper connecting piece, and the plastic shell can effectively protect the internal components, avoid the problem of voltage air breakdown of the rectifier product under high voltage conditions caused by environmental factors, and effectively improve the reliability of the component, thereby achieving high voltage and large current while meeting the miniaturization and integration requirements of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the internal tube core structure of the utility model;

[0012] Figure 2 for Figure 1 A local enlarged structural schematic diagram;

[0013] Figure 3 This is a schematic diagram of the package appearance structure of the utility model;

[0014] In the figure: 1-lead, 2-connecting piece, 3-solder, 4-diode, 5-plastic casing, 6-bend, 7-notch. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0016] like Figure 1 As shown, a high-voltage and high-current rectifier module includes a plurality of diodes 4; the two poles of the plurality of diodes are placed alternately, and the ends of adjacent diodes are connected using copper connecting pieces, and the unconnected ends of the diodes 4 at the head and tail are respectively connected to a lead 1 through a connecting piece 2, and the plurality of diodes 4 are arranged in parallel in a straight line, and the lead 1 extends along the arrangement direction of the diodes 4, and all the connecting pieces 2 and diodes 4 are wrapped by a plastic package 5.

[0017] Before sintering, the lower lead of the glass-passivated diode 4 is covered with solder 3 and then inserted into the through hole of the copper connecting piece 2. At the same time, the lower lead of another diode 4 is covered with solder 3 and inserted into another plug hole of the copper connecting piece 2. Then, the upper lead of the diode 4 is covered with solder 3 and inserted into the through hole of another copper connecting piece 2 and this operation is repeated until 10 diodes 4 are connected in series, and the shorter end of the external metal lead 1 is covered with solder 3 and inserted into the remaining plug holes at both ends of the copper connecting piece 2 for sintering; after sintering is completed, the plastic package shell 5 is put into it and potting and injection molding are performed to finally obtain the required module.

[0018] Furthermore, the diode 4 includes a tube core, and electrodes are fixed at both ends of the tube core respectively. The side walls of the electrodes are wrapped with solder 3, and the two poles of the diode are respectively soldered to the connecting piece through the solder 3.

[0019] Furthermore, the connecting piece 2 is a square flat plate, and through holes are processed at both ends of the connecting piece 2. The two through holes respectively fix two adjacent electrodes, and the through holes on the electrode piece clamp the electrodes at both ends of the diode.

[0020] Furthermore, notches 7 are processed at both ends of the connecting piece 2 to connect to the connecting piece 2. The existence of the notch 7 makes the through hole elastic, and the diameter of the through hole can be set smaller than the diameter of the electrode after wrapping the solder. During assembly, the through hole will expand according to the size of the electrode, and after assembly, it has a clamping force to clamp the electrode, thereby ensuring the stability between the diode and the connecting plate during the sintering process.

[0021] Furthermore, the lead 1 is an "L"-shaped round rod, whose short side is vertically fixed in the through hole of the connecting piece 2 by solder 3, and the long side is parallel to the connecting piece 2, so that the part of the lead outside the plastic shell is exactly in the middle of the plastic shell, making the packaging structure beautiful and easy to assemble.

Claims

1. A high-voltage and high-current rectifier module, comprising a plurality of diodes (4), characterized in that: A plurality of diodes (4) are connected end to end via a connecting piece (2); the unconnected ends of the diodes (4) at the end are respectively connected to a lead wire (1) via a connecting piece (2); the plurality of diodes (4) are arranged in parallel in a straight line; the lead wire (1) extends along the arrangement direction of the diodes (4); and all the connecting pieces (2) and diodes (4) are wrapped by a plastic package shell (5).

2. The high-voltage and high-current rectifier module according to claim 1, characterized in that: The diode (4) comprises a tube core, with electrodes fixed at both ends of the tube core respectively, and solder (3) is wrapped on the side walls of the electrodes.

3. The high-voltage and high-current rectifier module according to claim 1, characterized in that: The connecting piece (2) is a square flat plate, and through holes are processed at both ends of the connecting piece (2), and the two through holes are used to fix two adjacent electrodes respectively.

4. The high voltage and high current rectifier module according to claim 3, characterized in that: Notches (7) are processed at both ends of the connecting piece (2) to connect with the connecting piece (2).

5. The high-voltage and high-current rectifier module according to claim 1, characterized in that: The lead wire (1) is an "L"-shaped round rod, the short side of which is vertically fixed in the through hole of the connecting piece (2) by means of solder (3), and the long side is parallel to the connecting piece (2).

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