Driving board heat dissipation structure and air conditioner

Abstract

The invention relates to the technical field of household appliances, and aims to provide a driving board heat dissipation structure and an air conditioner. The driving board heat dissipation structure comprises a driving board, a module heat dissipation device, a refrigerant heat dissipation device and a flow guide plate; the driving board is provided with a power module; the inner side surface of the module heat dissipation device is in close contact with the power module; the refrigerant heat dissipation device comprises a heat dissipation plate and a refrigerant heat dissipation pipe, the heat dissipation plate is in close contact with the outer side face of the module heat dissipation device; and the flow guide plate is arranged between the module heat dissipation device and the refrigerant heat dissipation device, a containing opening is formed in the flow guide plate, the heat dissipation plate is arranged in the containing opening in an embedded mode, and flow guide ribs are arranged on the side face, close to the refrigerant heat dissipation device, of the flow guide plate and used for guiding condensate water generated on the refrigerant heat dissipation device downwards. According to the driving plate heat dissipation structure, the condensate water on the surface of the refrigerant heat dissipation device can be guided downwards through the flow guide plate, finally, the condensate water flows to the exterior of an electrical box, and therefore the condensate water is prevented from flowing along the surfaces of the module heat dissipation device and the refrigerant heat dissipation device or permeating to the surface of the driving plate, and potential safety hazards such as short circuit are avoided.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a heat dissipation structure of a driving board and an air conditioner. Background technique [0002] The outdoor unit of the air conditioner realizes the frequency conversion power output to the compressor and the fan through the drive circuit to ensure the normal operation of the air conditioner system. The power module on the driver board generates a lot of heat due to high current density and high computing performance. Effective cooling of the power module is required to ensure its normal operation. [0003] Due to the advantages of high heat dissipation efficiency, stable performance, and small footprint, refrigerant heat dissipation technology is being more and more used in the field of air conditioning power module heat dissipation. But because under certain extreme working conditions (low frequency operation, high humidity), the surface of the radiator wil...

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Problems solved by technology

[0004] In order to solve the above-mentioned problem in the prior art that the driving board adopts the refrigerant heat dissipation technology to generate condensation and affect the driving board, an embodiment of the present invention provides a driving board heat dissipation structure and an air conditioner, which can condense the refrigerant radiator by setting a deflector plate. The dew is exported to the electrical box to prevent the short circuit of the drive board circuit caused by condensation when the temperature of the radiator is too low

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