WO2012122881A1

WO2012122881A1 - Power unit in which power device sharing one water-cooling plate with capacitor

Info

Publication number: WO2012122881A1
Application number: PCT/CN2012/071507
Authority: WO
Inventors: 郭度厚; 赵殿波; 鲁俊; 杨贵发; 车前里; 甄伟; 吴君
Original assignee: 辽宁荣信防爆电气技术有限公司
Priority date: 2011-03-16
Filing date: 2012-02-23
Publication date: 2012-09-20
Also published as: CN102097921A

Abstract

The present invention relates to a power unit in which a power device sharing one water-cooling plate with a capacitor. The capacitor (9) and the water-cooling plate (11) have an integrated structure, and the capacitor and the power device are cooled by the same water-cooling plate. the capacitor and the power device are cooled by the same water-cooling plate, so that the problem of thermal expansion of the capacitor and dangers such as explosion caused by heat can be solved. the capacitor and the water-cooling plate have the integrated structure, so that the installation has a compact structure and a small volume, and is applicable to working environments with low size requirements on the installation. the modular design of the installation is realized easily, and the installation is easy to be installed and transported.

Description

Power unit for sharing a water-cooled plate with a power device and a capacitor

The present invention relates to a converter power unit, and more particularly to a capacitor and power unit sharing a water cooled plate cooled power unit. Background technique

In the prior art, electrical and electronic devices such as power units of converters (such as inverters) need to be cooled by means of self-cooling, air-cooling, heat pipe heat sinks, and water cooling, but usually capacitors generally do not use special cooling facilities. If the capacitor does not dissipate heat well, it will cause thermal expansion, and in severe cases, it will explode. Especially in explosion-proof converter devices, the capacitors are installed in a closed housing. If the generated heat is not emitted, it will bring a lot of harm. Summary of the invention

The object of the present invention is to provide a power unit in which a power device and a capacitor share a water-cooled plate. The capacitor and the water-cooling plate adopt an integrated structure, and the capacitor and the power unit share a water-cooled plate for cooling, and the capacitor is cooled by water, and has a good heat dissipation effect and a compact structure.

To achieve the above object, the present invention is achieved by the following technical solutions:

A power unit in which a power device and a capacitor share a water-cooled plate, wherein the capacitor and the water-cooled plate are integrated, and the capacitor and the power unit share a water-cooled plate for cooling.

Compared with the prior art, the beneficial effects of the present invention are -

1) The capacitor and the power unit share a water-cooled plate to cool, which solves the problem of thermal expansion of the capacitor and the explosion caused by the tropics;

2) The integrated structure of the capacitor and the water-cooled plate makes the device compact and small in size; it is suitable for use in a working environment where the size of the device is small.

3) The integrated structure of the capacitor and the water-cooled plate makes it easy to realize the modular design of the device, which is easy to install and transport.

4) Capacitor and water-cooled plate adopt integrated structure, which is especially suitable for downhole applications with small volume requirements. DRAWINGS

Figure 1 is a perspective structural view of the present invention;

Fig. 2 is a front view of the present invention.

In the figure: 1-composite plate 2-input copper row 3-input socket 4-output copper row 5-output socket 6-fast fuse 7-rectifier diode 8-resistor 9-capacitor 10-IGBT 11-water-cooled plate 12-water joint embodiment

Referring to Fig. 1 and Fig. 2, a power unit in which a power device and a capacitor share a water-cooled plate, the capacitor 9 and the water-cooling plate 11 are integrated, and the IGBT 10 is connected to the water-cooled plate 11. The capacitor 9 shares a water-cooled plate 11 with the IGBT 10 for cooling. The resistor 8 and the rectifier diode 7 are also assembled with the water-cooling plate 11 and cooled by the water-cooling plate 11. The water-cooling plate has a water passage inside and a water joint 12 at the end.

The IGBT 10 is connected to the external incoming line through the composite plate 1 and the input copper busbar 2, the input socket 3, and the outlet end of the IGBT 10 is connected to the external output line through the output copper busbar 4 and the output socket 5, and the input copper busbar 2 and the output copper are input. Row 4 is connected to a fast acting fuse 6 for protection.

The capacitor of the invention and the power unit share a water-cooled plate cooling, which solves the problem of thermal expansion of the capacitor and the explosion caused by the tropics; 2) The integrated structure of the capacitor and the water-cooled plate makes the device compact and small in size; Small size requirements in a working environment.

The structure of the present invention is particularly suitable for use in a coal mine underground explosion-proof sealed converter and other confined environments where space is small.

Claims

Claim

1. A power unit in which a power device and a capacitor share a water-cooled plate, wherein the capacitor and the water-cooled plate are integrated, and the capacitor and the power unit share a water-cooled plate for cooling.