Itch relieving device

An itch relieving device, comprising:

• a shell;
• a heating element arranged on the shell;
• a first touch sensing module arranged on the shell, wherein the first touch sensing module is configured for touching a human body to generate a human body sensing signal;
• a control module arranged in the shell and electrically connected with the heating element and the first touch sensing module respectively to control the heating element to be switched on or off according to the human body sensing signal;
• a gear input module arranged on the shell, wherein the gear input module is configured for acquiring a control action to generate a pulse signal, the control module is provided with a storage unit;
• the control module is electrically connected with the gear input module to change a heating gear according to the pulse signal, and the control module is configured for recording a current heating gear through the storage unit and controlling a heating power of the heating element according to the current heating gear;
• a first switch module arranged on the shell, wherein the first switch module is connected with the control module to form at least part of a first power supply branch for accessing a power supply, and the first switch module is connected with the heating element to form at least part of a second power supply branch for accessing the power supply;
• and
• a second switch module, wherein the second switch module, the heating element and the first switch module are connected to form the second power supply branch, and the control module is connected with a controlled end of the second switch module to adjust the heating power of the heating element by controlling an operating current of the second power supply branch.