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Draft:Electric hot water bag

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Electric hot water bag
Electric hot water bag
ClassificationHeating device
IndustryHealthcare industry
ApplicationHeat therapy
InventorWang Qiang

An electric hot water bag is a heat therapy device that uses electrical energy to warm water inside a sealed bag. It typically features a heating element and insulation to retain heat, providing warmth for relieving muscle pain. It was first invented by Wang Qiang in China.[1]

Structure

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The electric hot water bag comprises a well-structured casing and integrated electronic device components for efficient operation. The outer casing serves as the external layer, while the inner casing houses the internal components, including an injecting hole for filling water and a plug jack that connects to the electrical outlet. A convex column within the plug jack activates the induction switch upon insertion of the power connector. The temperature controller regulates heating levels, with three electrical terminals extending from the plug jack to connect to the power source. On either side of the inner face, two electric heating plates are securely fixed using a bracket, linked to the electronic device through a waterproof circuit, ensuring safety during operation. The power connector fits into the plug jack and consists of conduction parts that facilitate power transmission to the heating plates. Finally, the induction switch is triggered by the convex column, connecting to an alarming lamp that indicates the device's operational status or alerts users to any malfunctions.[2]

References

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  1. ^ "WIPO - Search International and National Patent Collections". patentscope.wipo.int. Retrieved 2024-10-05.
  2. ^ CN2745536Y, 陈俊诚 & 刘荣仁, "Heating structure of hot water bag", issued 2005-12-14