Un dispositivo para llevar puesto bajo la ropa que genera frío y calor. Es el invento de un grupo de jóvenes de Córdoba que han bautizado como Wendu (temperatura en Chino) y que ha llamado la atención de empresas tecnológicas, deportistas, médicos y fabricantes del sector de la automoción y textil. Controlado por Bluetooth a través de una aplicación móvil, consigue enfriar una zona hasta los 20 grados o calentarla hasta los 40 grados con una pequeña batería de menos peso que un smartphone y que, para alterar la temperatura, mueve las partículas del interior de cuatro focos que se sitúan bajo las prendas y en contacto con el cuerpo. Puede funcionar entre seis y ocho horas sin recarga.
David Requena, with whom his companions joke calling “dinosaur” because his 33 years make him the oldest of the group, left his promising career as an electronic engineer to bet everything with Wendu, a company of which the chemical and doctor of Materials Francisco Navas is a partner.In two offices of a local seedbed for entrepreneurs from Córdoba, Requena and their companions Juan Fernando Ramírez, Luis Bretones and Sergio Villalobos, have passed the two years of creation and testing of prototypes to start selling (directly for now) the first shirts withThe coupled device.The current price is 129 euros, although they hope to reduce the price if they extend the market.
The latest investigations in the field of thermal clothing have been aimed at the search for materials that achieve the cooling effect by reflecting sunlight or that let body radiation escape.Scientists from the University of Maryland (USA) have created a cloth that regulates its thermal properties in response to changes in humidity and temperature of the human body.There are also garments that provide extra heat, but from heavier batteries and with a greater energy expenditure when they are based on resistances.Or that provide cold when incorporating previously cooled gels.But the latter do not refrigerate continuously or allow the desired effect to be dose.
Wendu's proposal allows to provide cold or heat at the will of its user, without resistances (patented technology consists in the alteration of particle vibration) and regardless of the body response.In fact, one of his first buyers has been an Extremadura patient who suffers from a disease that prevents him from sweating, so he does not have the body's own thermoregulation systems.
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Athletes have also joined the client list by allowing, with this device, heating or cooling the body based on the phase of execution of the activity they develop.Those responsible for Wendu have proposed the use of their device to Gema Victoria Hassen-Bey González, the Paralympic medalist who has conquered the top of the Teide in a wheelchair and wants to be the first to do so in the same way in Kilimanjaro.The device will provide heat to the legs of this paraplegic athlete.
The device has applications in the field of work clothes, in furniture elements such as mattresses or in the automotive industry for seats, among other fields.Even in the daily field, taking into account the high and low temperatures that are recorded in summer and winter.But the 200,000 euros invested to date have given to launch the product, waiting for contacts with companies that have been interested in the device.
The temperature spotlights have been protected with silicones and enamels to be able to wash them.They connect to the battery using a Jack type connection, which allows the energy units to be exchanged.They have a useful life between three and five years.
