This present disclosure relates to a flexible heating device having a unique layered assembly structure including a flexible heat generating layer. The present disclosure also relates to a method of manufacturing the flexible heating device and method of use of the flexible heating device in various applications.

The wirelessly-controlled electric blanket is a domestic article. The wirelessly-controlled electric blanket is a textile structure known as a blanket. The wirelessly-controlled electric blanket is an electrically powered device known as an electric blanket. The wirelessly-controlled electric blanket comprises a blanket and a personal data device. The personal data device controls the operation of the blanket.

A wireless charging system for heated garments includes a garment body, a heater coupled to the garment body, a receiver coupled to the garment body and configured to wirelessly receive power, an energy storage element coupled to the garment body and configured to store charge provided to the receiver, a controller selectively providing power from the energy storage element to the heater, and a power supply including a transmitter configured to wirelessly provide power to the receiver when the transmitter is near the receiver.

Introduced are a bed device system and methods for: gathering human biological signals, such as heart rate, breathing rate, or temperature; analyzing the gathered human biological signals; and controlling the bed device system, e.g., a temperature of the bed device, based on the analysis.

A safe heating circuit, including: a PTC electric heating element, generating heat when being electrified; a first switching element, coupled into a ground loop of the PTC electric heating element and configured to switch on or off a power loop of the PTC electric heating element based on an on-off control signal; a first voltage acquisition circuit, configured to sample a first temperature voltage based on a ground current of the PTC electric heating element; an NTC element, disposed between the PTC electric heating element and a sensing element; the sensing element, configured to receive a leakage current from the PTC electric heating element transmitted by the NTC element; a second voltage acquisition circuit, configured to sample a second temperature voltage based on the leakage current; and a controller, configured to compare the first temperature voltage or the second temperature voltage to a set temperature voltage and output the on-off control signal based on a comparison result.The safe heating circuit of the present invention can precisely control the heating temperature, and timely detect a fault and switch off a power supply to ensure the safety of a user.

A resistive heater system comprising a braided and flattened electrical lead connected to a heating blanket or coating at one end of the lead. The braided and flattened electrical lead comprises a folded-over section that forms an angle in the lead of 70 to 110°. The invention also includes an aircraft comprising the heater system. Nonlimiting examples of aircraft include helicopter, drone, and airplane.

Introduced are methods and systems for: gathering human biological signals, such as heart rate, respiration rate, or temperature; analyzing the gathered human biological signals; and controlling a vibrating pillow strip based on the analysis.

An article of clothing includes a garment body, a heater coupled to the garment body, a battery holder separate from the garment body and including a power terminal, and a rechargeable battery pack including a housing and a plurality of battery cells received in the housing and configured to provide power to the heater. The battery holder is detachably couplable to the garment body. The rechargeable battery pack is electrically connectable to the power terminal. The housing is detachably couplable to the battery holder. At least a portion of the housing is external to the battery holder when the rechargeable battery pack is coupled to the battery holder.

An electric heating pad for warming a patient. The electric heating pad may be a heated underbody support, heated mattress or heated mattress overlay. An embodiment of the heating pad includes a flexible sheet-like heating element including an upper edge, a lower edge, and at least two side edges. The heating pad may also include a shell covering the heating element and comprising at least two sheets of flexible material (e.g., two sheets may be one sheet folded over to form at least two sheets). The two sheets of flexible material may be coupled together about the edges of the heating element by a weld. The material of the two sheets may include urethane. In some embodiments, a catalyst to accelerate hydrogen peroxide decomposition is coated on or impregnated into an element within the shell, or on the interior surface of the shell.

A heating control circuit to improve safety of electric blankets and similar electric heating devices, the heating control circuit can accurately control a heating temperature, can detect a working state of key elements, and can prevent a local temperature of an electric heating wire from being too high and causing a fire, thereby ensuring the safety of users. In order to achieve the above objective, the present invention adopts the following technical solution: a heating control circuit configured to control power of an electric heating element includes: a temperature sensing element, having positive temperature coefficient (“PTC”) characteristics and configured to sense a temperature of the electric heating element to generate a temperature voltage; a first comparison circuit, configured to compare the temperature voltage with a reference voltage to generate a comparison signal; a controller, configured to output an on-off control signal according to the comparison signal; and a first switching element, coupled into a ground loop of the electric heating element and configured to switch on or off a power loop of the electric heating element based on the on-off control signal.