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High-reliability heat exchanging unit

A technology of heat exchange unit and reliability, applied in the direction of converting AC power input to DC power output, output power conversion device, electrical components, etc., can solve the problem of low working life and reliability, and high sealing performance of heat exchange unit , low power density and other issues, to achieve the effect of improving working life and working efficiency, good sealing and rainproof effect, and high power density

Inactive Publication Date: 2015-08-19
武汉绿鼎天舒科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the use of the above-mentioned heat exchange unit has switching loss, the impulse voltage generated when the switching element is disconnected, and the poor working stability of the heat exchange unit caused by voltage instability. It has high loss, low power density, and poor working life and reliability. In addition, the cover plate is easy to bulge outward under the elastic force of the sealing strip, and in rainy days, rainwater can enter the external circulation chamber of the unit from the air inlet of the external circulation, and under the action of the circulating fan, the rainwater may pass through the cover. The gap formed by the plate protruding outward is blown into the module in the cabinet, which does not meet the high sealing requirements of the heat exchange unit

Method used

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Embodiment Construction

[0029] Such as figure 1 As shown, the heat exchange unit of the present invention includes a cover plate 1, a heat exchange core 2, an electric heater 3, an inner circulation fan 4 and an outer circulation fan 5, a box body 12, and also includes figure 1The controller and transformer not shown in the figure have a rectangular air outlet on the side wall of the box body 12, wherein the space surrounded by the box body 12 and the inner circulation fan 4 is called the inner circulation cavity 6, and the space surrounded by the outer circulation fan 5 is called the outer cavity. Circulation chamber 7; the inner circulation chamber 6 is located at the upper part of the heat exchange group, the outer circulation chamber 7 is located at the lower part of the heat exchange group, and the heat exchange core 2 is between the inner circulation chamber 6 and the outer circulation chamber 7. The internal circulation fan 4 is located in the internal circulation cavity 6 , and is used to suc...

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Abstract

The invention provides a high-reliability heat exchanging unit. The high-reliability heat exchanging unit comprises a box body, a cover plate, a heat exchanging core, an electric heater, a changer, an inner circulating fan and an outer circulating fan, wherein the changer is a three-phase resonance changer with a middle tap transformer, and a rectangular air outlet is formed in the side wall of the box body. The heat exchanging unit of the three-phase resonance changer with the middle tap transformer is low in consumption, high in power density and capable of prolonging the service life and improving the reliability of the exchanging unit; by re-forming the rectangular air outlet, the heat exchanging unit is highly sealed and has the rain-proof effect.

Description

technical field [0001] The invention relates to a heat exchange group, in particular to a heat exchange group with a three-phase resonant converter of an intermediate tap transformer. Background technique [0002] In recent years, with the development of communication technology, communication cabinets are widely used all over the world because of their functions of receiving and sending signals; and because of the high calorific value of communication cabinets, in order to improve their working life and reduce thermal stress, heat exchangers are required The group cools it down to ensure that the electronic equipment works at its best performance. [0003] The working principle of the above-mentioned heat exchange unit is that when the indoor air-conditioning return air and the outdoor fresh air pass through the heat exchanger in an orthogonal crossing manner, due to the temperature difference and water vapor partial pressure difference in the airflow on both sides of the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00
Inventor 杨慧萌
Owner 武汉绿鼎天舒科技发展有限公司
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