Novel integrated water-cooling thyristor ceramic housing

Abstract

The invention relates to a novel integrated water-cooled and heat-dissipating thyristor ceramic shell, which includes a base and a tube cover, the base includes an anode flange (1), a ceramic ring (2), an anode sealing ring (3) and an anode electrode (4), and the tube cover Including the cathode flange (10) and the cathode electrode (11), the anode cooling column (9) and the anode surrounding wall (4.1) are arranged on the lower end surface of the anode electrode (4), and the anode surrounding wall (4.1) is connected to the anode The cooling water inlet pipe (6), the anode cooling water outlet pipe (7) and the anode water baffle (8) are concentrically welded with an anode cover plate (5) under the anode electrode (4); in the middle of the upper end surface of the cathode electrode (11) A plurality of cathode cooling columns (16) protrude, and a cathode wall (11.1) protrudes from the upper end surface of the cathode electrode (11), and a cathode cooling water inlet pipe (13) and a cathode wall are connected to the cathode wall. The cooling outlet pipe (14) is provided with a cathode water baffle (15) radially on the inner wall surface of the cathode surrounding wall (11.1). The invention enables the shell to have the dual functions of radiator and packaging, which not only improves the heat dissipation effect, but also greatly simplifies the assembly of the thyristor device.

Description

technical field [0001] The invention relates to a ceramic tube shell, in particular to a thyristor ceramic shell. It belongs to the technical field of power electronics. Background technique [0002] In the 1950s, the advent of the silicon thyristor invented by General Electric Company of the United States marked the beginning of power electronics technology. Since then, there have been more and more derivative devices of thyristors, with increasing power and improved performance. Ordinary thyristor devices are composed of three major departments. Namely: chip, package case and heat sink. At present, it is generally used to externally connect the radiator with fasteners on the package shell. There are various forms of radiators, commonly used are self-cooled radiators, air-cooled radiators, water-cooled radiators and heat pipe radiators. However, due to the large size of the radiator itself, fasteners are used to connect the electrodes of the shell when connecting exter...

AI Technical Summary

Problems solved by technology

However, due to the large volume of the radiator itself, fasteners are used to connect the electrodes of the shell when connecting externally, the contact thermal resistance is large and there are many accessories, the assembly is cumbersome, the entire device is large in size, and the serial connection between the devices is also difficult.

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