Douglas Richard Wright,Peter Lawrence Grylls,Andrew Paul Maxwell Salmon,Philip John Dickinson,Yi-Cheng Sun,Silvan Terence Butler,Sergiu Constantin Filip,Samuel William Saunders,Andrew Martin Letton
申请号：
US16310798
公开号：
US20200306489A1
申请日:
2017.06.16
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A breathing assistance apparatus that comprises a housing with inner and outer walls and an upper surface, wherein the walls and upper surface are integrally formed as a single part to avoid seams or joins between the walls to reduce the risk of damage to electronics within the apparatus as a result of liquid leaks. Also disclosed is a control system for a heating element of a humidifier which provides a secondary or back up protection mechanism to disable power to the heating element if a first electronic protection circuit does not cause the first switching member to disable power to the heating element.
