An insole for controlling and adjusting the temperature of the foot. The insole includes a first heat conductive layer made of fabric, a second heat insulating layer comprising a Peltier cell. The Peltier cell includes a first surface and has a predetermined polarity such that, when the Peltier cell is on, the first surface is heated or cooled. A third heat dissipating layer includes an accelerometer and a logic control unit connected to the accelerometer and to the Peltier cell. The insole further includes a first flexible printed circuit configured to measure the temperature of the foot, through at least a first temperature sensor and the temperature of the first surface of the Peltier cell, through a further first temperature sensor.

An article and system for regulating temperature in footwear. Thermal footwear may include a power generation layer, a thermocell layer, and an accessory layer. The power generation layer may be constructed of an actuator materialfor example, a dielectric elastomerwhich may generate an electric current when compressed or decompressed. The thermocell layer may be configured to either warm or cool a user's foot, and may be reversible by being removably coupled to the power generation layer. The accessory layer may include other components; for example, an integrated circuit chip for power transmission to an external device may be included.

A power collector structure connected to a base is repetitively deformed or bent. The power collector structure is bar-like, and is connected to the base in an essentially rigid manner. A power collector for converting mechanical energy to electric power is connected to the power collector structure.

A shoe includes a sole, an actuator and a transducer. The actuator is mounted on one side of the sole. The transducer is mounted within the sole and includes a micro-motor, a link structure and a heater. The link structure is positioned between the micro-motor and the actuator and configured to move the micro-motor to generate electric energy. The heater is electrically coupled to the micro-motor and configured to convert the electric energy provided by the micro-motor to heat. When the actuator deforms or restores its deformation, the link structure moves thereby enabling the micro-motor to generate electric energy for the heater.

A shoe has a heated insole with a battery-receiving portion. A battery is insertable into and removable from the battery-receiving portion of the shoe's insole while the insole is disposed within the shoe.

A heated insole for a shoe has an insole body, a heating element, and a removable assembly. The insole body has a recess, and the heating element delivers heat to at least a portion of the insole body. The removable assembly is removable from and insertable into the recess of the insole body, and includes a battery and a control circuit that is configured to control heating of the heating element.

A battery for use with a heated insole has a cushion portion on top of the battery to provide comfort when the battery is disposed within the insole.

A shoe has a heated insole with a battery-receiving portion. A battery is insertable into and removable from the battery-receiving portion of the shoe's insole while the insole is disposed within the shoe.

An assembly for inclusion in a heated insole has a heating member and a frame. The frame has a connector that allows a person to couple a battery to and decouple the battery from the heating member.