WO2008012388A1

WO2008012388A1 - Bracelet for regulating body temperature by means of excess heat

Info

Publication number: WO2008012388A1
Application number: PCT/ES2007/000454
Authority: WO
Inventors: Antonio Gallego Pujante
Original assignee: Antonio Gallego Pujante
Priority date: 2006-07-28
Filing date: 2007-07-20
Publication date: 2008-01-31
Also published as: ES1063647U; ES1063647Y

Abstract

The invention relates to a bracelet for regulating body temperature by means of excess heat. The bracelet consists of: a pre-determined number of finned surfaces which are formed by a material having high thermal conductivity in accordance with the power to be dissipated and which are elastically interconnected or articulated with one another, such as to form a strap or bracelet which is worn on the forearm, wrist or back of the hand. The invention reduces the natural surface thermal resistance of the skin and, consequently, increases the heat dissipated by the human body in the area containing the bracelet or strap. In addition, owing to the superficial branching nature of blood vessels in said part of the body, the blood circulation acts as a cooling fluid, such that heat exchange between the human body and the surrounding environment is significantly improved without having to modify the thermodynamic conditions of the environment, thereby alleviating or eliminating the sensation of heat or sultriness.

Description

Bracelet to regulate body temperature due to excess heat. DESCRIPTION

Object of the invention

This descriptive report refers to a bracelet capable of significantly increasing the natural ability of the human body to dissipate heat to the environment. The object, therefore, of this invention is to be able to eliminate the sensation of heat in people without modifying the thermodynamic conditions of the surrounding air, which would otherwise produce heat or embarrassment.

This bracelet is composed of small finned surfaces joined together forming a bracelet or bracelet, as indicated in the corresponding drawings (Fig. 1 and 2), made of material with a high thermal conductivity such as Aluminum, copper or others that dissipate body heat in the area of the wrist where they are placed, and the blood circulation that in this area of the body is very superficial, is used to get the bloodstream to act as a cooling fluid, extending the sensation of heat relief to the entire body and not being reduced to the area where the bracelet is placed. Background of the invention

It is well known that the human body needs to maintain its body temperature within a narrow temperature range, the body itself has natural mechanisms capable of doing so although these are usually artificially complemented and so we have the following cases:

When the thermodynamic conditions of the air that surrounds us are such that they would produce a sensation of cold, what is done with the clothes is to increase the coefficient of thermal resistance of the skin to make the body heat generated by the body does not dissipate quickly and thus get eliminate the feeling of cold. I also know It can reduce the amount of heat that dissipates the body by heating the air around us in a certain place (heating).

When what we want is for our body to dissipate as much heat as possible, what we do is to cool the air in a certain place and place clothes that do not have much thermal resistance to favor heat loss.

Well, all this is well known, so for the case in which we want to favor the loss of body heat and wearing light clothes is not enough, which happens in summer, so far the solution in this case was by a method or another to reduce the temperature and relative humidity of the air inside a room (air conditioning) or simply put the air in motion (fan), the novelty that incorporates this invention is to increase the heat dissipated to the environment by the body not acting on the conditions thermodynamics of the air that surrounds us but acting on the conditions of the body itself individually in each person managing to substantially increase the exchange of heat with the environment without, as I say, modifying the conditions of the surrounding air.

The finned surfaces on which this bracelet is based are known in the world of technology and have been used to give out the heat generated by certain machines, but have only been used so far in certain machines, installations and electrical appliances, not in people and this dissipation effect is not enough to eliminate the sensation of heat in a person since it would be reduced in principle to the area where we placed it only, it is necessary to take advantage - therefore - the human anatomy itself to channel the heat generated by the body even in deep areas and dissipate it through the bracelet or bracelet.

The bracelet or bracelet is composed of a set of what we could call elementary dissipation units as shown in Figure 1, joined together in a certain number forming the bracelet or bracelet (Figure 2). These elementary units are surfaces of material with high thermal conductivity such as aluminum or others, which has been equipped with fins, which are reliefs of its surface that make the heat that passes through them find much more surface of contact with the air and thus reduces the resistance to pass to it. These finned units or bases can have different shapes and sizes, they have been represented in a square or rectangular shape and with the parallel or radial fins as shown in Figure 1 but they can take other shapes and maintain the same principle as dissipating heat in a specific area of the body. These fined units or bases may also have a different size, the greater the finned surface corresponds to greater dissipated power, the total power dissipated by the bracelet or bracelet will be the product of the number of elementary units that form the bracelet by the power of each elementary unit.

The blood circulation travels throughout the body in a cyclic manner, from the deepest to the most superficial areas, in the area of the wrist or forearm as well as on the back of the hand the blood vessels are superficial and very branched therefore - and this It is the essence of the invention - if we place a mechanism of heat dissipation in this area, we get the blood to act as a cooling fluid that circulates throughout the body transporting heat to the heatsink where it cools to go back through the body again . Not only in the wrist the blood vessels are superficial, the effect mentioned in other areas of the body could be achieved but it is in the wrist, forearm and back of the hand where it is more feasible.

There is one more characteristic to describe of the bracelet or bracelet and it would be the following: The temperature of the core of the human body is about 37 ⁰ C, so when the temperature of the air is at this level or higher, it would not be possible for the bracelet to be this invention had the desired operation, to solve this and also to give greater dissipation power has been devised to provide the dissipation units with some holes (figure 1 B mark 3) through to take advantage of the physical phenomenon of the capillarity and ensure that when wetting the bracelet there are small droplets of water trapped between its fins (figure 1 B mark 5) and in said holes and such droplets on evaporation they absorb heat directly from the bracelet and due to its great thermal conductivity said heat absorption is impacted on the total body as described. Brief description of the drawings

Figure 1.- In section A an elementary dissipation unit in three dimensions is shown, showing its finned surface and its dimensions "L" and "H" which are a few centimeters; increasing the number of transverse grooves (mark 2) allows the dimension "P" to be reduced and we increase the dissipation surface. In section B we can see a section of the same dissipation unit where its fins are observed (mark 1) separation between them "S" heat conduction base (mark 4) drills to house water droplets by capillarity (mark 3 ) as well as the space between fins where water would also be housed by capillarity in case of wetting the bracelet (mark 5). In section C a radial finned surface shape is observed.

Figure 2.- Shows a set of 10 elementary dissipation units forming a bracelet. Figure 3.- This figure shows a bracelet placed formed by four rings (mark 8) and the process of operation of the bracelet or bracelet is schematized: the heat that carries the blood is partly released in this area of the forearm (mark 7 ) by conduction and transferred to the environment through the cuff or bracelet by convection much more efficiently than the skin itself would. Description of a preferred embodiment

As described in the figures, the bracelet or bracelet would be formed by a certain number of finned surfaces of a few centimeters of side (fig. 1 A) by means of elastic or articulated connections between them, all this so that the adaptation of the bases finned to the shape of the wrist, forearm and even the back of the hand.

Not all people or in all circumstances need an equal heat dissipation, therefore bracelets or bracelets with different dissipation powers, or what is the same, of different sizes or of a number of elementary dissipation units or bases should be marketed finned different.

The finned surfaces will be flat as provided in the figures or in the form of needles which can be achieved by increasing the number of grooves shown in Figure 1 A mark 2 to achieve that the dimension "P" be similar to the thickness of the fin . The material must be of a high thermal and light conductivity, therefore Aluminum would be one of the most indicated.

Claims

1. Bracelet to regulate the body temperature due to excess heat, which being constituted by a certain number of finned surfaces composed of material with high thermal conductivity, according to the power required to dissipate (Fig. 1) and joined in an elastic or articulated way between if, by forming a bracelet or bracelet (Fig. 2) and placed in the area of the forearm, wrist or back of the hand, it manages to reduce the natural surface thermal resistance of the skin and, therefore, increase the heat dissipated by the human body in the area where this bracelet or bracelet is placed (figure 3) and that due to the superficiality and branching of the blood vessels in this area of the body, it is achieved that the blood circulation acts as a cooling fluid so that the human body improves substantially its global heat exchange with the surrounding environment without modifying the thermodynamic conditions of this and - consequently - relieves or Imines the sensation of heat or embarrassment.