Sealing device, inverter air conditioner controller assembled therewith, and sealing method

Abstract

The invention discloses a sealing device, a variable frequency air conditioner controller assembled with the sealing device and a sealing method. The sealing device is used for sealing an electronic component installed on a main board and comprises a body, a local sealing component and a local sealing and fastening component. The local sealing component is arranged on the body and used for forming a local sealing area making contact with the electronic component. The local sealing and fastening component is arranged on the portion, on the periphery of the local sealing component, of the body and used for fastening the local sealing component and the electronic component to achieve sealing fit. The sealing device is used for sealing the electronic component in the variable frequency air conditioner controller, the electronic component, prone to damage, on the main board of the variable frequency air conditioner controller is sealed in the local sealing area filled with protection glue, local sealing is achieved for the electronic component prone to generating the chemical reaction, the electronic component is isolated from air, and therefore the reliability of the variable frequency air conditioner controller is improved.

Description

technical field [0001] The invention relates to the field of sealing devices, in particular to a partial sealing method for a controller, and in particular to a sealing device for sealing electronic components in an inverter air conditioner controller, an inverter air conditioner controller assembled therewith, and a sealing method. Background technique [0002] At present, air conditioning plays an important role in people's life. The traditional air conditioner has an "on-off" adjustment mode, which not only has large noise and temperature fluctuations, but also frequent switching will cause great damage to the air conditioner compressor. With the development of computer technology, frequency conversion technology, and intelligent control technology, people get rid of the adjustment mode of traditional fixed-frequency and fixed-speed air conditioners, and develop variable-frequency variable-speed air conditioners with better performance. At present, in some developed coun...

AI Technical Summary

Problems solved by technology

Since the controller board in the indoor unit is exposed to the internal environment of the air conditioner, and the controller board assembly has high requirements for reliability, electronic components such as resistors are prone to react with various chemical substances in the air and cause electronic damage. Components fail; at the same time, impurities such as dust are also easily attached to the electronic components of the controller motherboard, thus affecting the long-term reliability of the air conditioner

In addition, once the refrigerant leaks, the leaked refrigerant will come into contact with the electronic components on the main board of the controller, making the flammable gas near the electronic components higher than the flammable concentration stipulated by the state, thereby reducing the safety of the electronic components

Therefore, when designing, it is necessary to seal and protect the electronic components on the controller main board of the inverter air conditioner, but the existing sealing device cannot achieve good sealing, and cannot isolate the vulnerable electronic components on the controller main board from the air. Chemicals in the air react on contact

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