JPH026603A - Warming and cooling helmet device - Google Patents

Abstract

PURPOSE:To prevent the inside of helmet from becoming an extraordinary high or low temperature by setting an expanding and contracting device to produce gap between a thermoelement and a heat accumulating agent when temperature of thermoelement at the side of the heat accumulating agent reaches >=a set temperature, between the thermoelement and the heat accumulating, agent. CONSTITUTION:An expanding and contracting device 60 is set between a thermoelement 40 and a heat accumulating agent 50. When heat of a heat transfer material 31 and a heat radiating plate 30 heated acts on the expanding and contracting device 60, the expanding and contracting device 60 is extended by heating, the thermoelement 40 is a little separated from the heat accumulating agent 50 and a thin air layer is formed between the thermoelement 40 and the heat accumulating agent 50. Even if a helmet 40 in a cooled state is transferred to the interior of a room free from sunshine and electromotive force from a solar battery 21 is cut off, the interior of the helmet 10 can be prevented from becoming extraordinary high temperature. When the interior of the helmet 10 is warmed, cold air of the heat transfer material 31 and the heat radiating plate 30 can be prevented from transferring to the interior of the helmet 10 by the expanding and contracting device 60.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a heating and cooling helmet device, more specifically, the heating or cooling of the inside of the helmet using an internal thermoelectric element. This invention relates to a heating/cooling helmet device that prevents the heat on the outer surface of the thermoelectric element from being transferred to the inside of the helmet when the helmet is moved to a shaded area where the solar cells do not function.

[Prior Art] Conventionally, motorcycle riders, construction workers, and the like have traditionally worn helmets mainly for safety reasons.

The helmet used at this time is a motorcycle helmet to prevent head injuries from falling, and a construction helmet to prevent head injuries from objects falling from above. It was intended to prevent this.

Therefore, the whole thing is made to have strength, and by wearing it, you can prevent injuries.

However, in such conventional helmets, the entire helmet is made of a rigid body in order to provide strength, so there is no air circulation, and the head may swell, especially in the hot summer.

Therefore, in order to improve safety by wearing a helmet, the temperature inside the helmet impairs the ability to think or make decisions, and as a result, wearing a helmet actually causes accidents.

Also, in the winter, helmets were cold and I felt cold when I wore them.

Therefore, by the same applicant, although it is a small device,
A helmet is provided that does not cause unpleasant vibrations or noises, can be cooled or heated simply by operating a switch, and cools the inside of the helmet in inverse proportion to the heat especially when it is hot.

This helmet has a thermoelectric element and a heat storage agent in contact with one side of the thermoelectric element inside the helmet, and a heat dissipation part and a solar cell part on the outer surface of the helmet.
The other side of the thermoelectric element and the heat dissipation section were connected by an electric heating element, and the thermoelectric element and the solar cell of the solar cell section were electrically connected. It is an element that causes energy conversion with electricity, and by passing an electric current, it cools one side and heats the other side with the same amount of heat. Furthermore, in this thermoelectric element, the cooling surface and the heating surface can be changed by simply reversing the current direction.

With the helmet formed in this way, when you go out into the sun with this helmet on, the sunlight hits the solar cells and generates electricity, which heats or cools the heat storage agent side of the thermoelectric element. At the same time, the inside of the helmet is heated or cooled.

[Problems to be Solved by the Invention] However, when considering the purpose of cooling the inside of such a helmet, for example, as long as the person is only on the outside exposed to sunlight, cooling can be done extremely efficiently.

However, because it uses solar cells as a power source, the electromotive force disappears when the sun stops shining on it.

As a result, for example, if you suddenly move from an outside area exposed to sunlight to a room that is not exposed to sunlight, the moment the power from the solar cells runs out, the helmet reaches high temperatures due to heat exchange with the inside of the helmet. The heat on the outer surface of the thermoelectric element is transferred from the thermoelectric element to the inside of the helmet via the heat storage agent, so the internal temperature rises rapidly and the helmet cannot be used when moving between indoors and outdoors where sunlight is shining. It became.

A similar situation also occurred when heating the inside of the helmet.

Therefore, in the present invention, an expansion and contraction device that expands and contracts depending on the temperature is interposed between the thermoelectric element and the heat storage agent, and the thermoelectric element is suddenly moved from the outside exposed to sunlight to an indoor room not exposed to sunlight. By extending the expansion device with the power cut off and forming a thin air layer between the thermoelectric element and the heat storage agent, the heat or cold from the outside surface of the thermoelectric element, which is at a high or low temperature, is transferred to the inside of the helmet. The purpose of the present invention is to provide a helmet that prevents abnormally high or low temperatures inside the helmet from being transmitted to the inside of the helmet.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention includes a thermoelectric element and a heat storage agent in contact with one side of the thermoelectric element inside the helmet, and a heat storage agent that is in contact with one side of the thermoelectric element. is provided with a heat dissipation part and a solar cell part, the other side of the thermoelectric element and the heat dissipation part are connected by an electric heating body, and the thermoelectric element and the solar cell of the solar cell part are electrically connected, and the thermoelectric element The present invention is characterized in that an expansion and contraction device is attached between the thermoelectric element and the heat storage agent to create a gap between the thermoelectric element and the heat storage agent when the heat storage agent side of the thermoelectric element reaches a set temperature or higher.

[Embodiments] Hereinafter, embodiments of the present invention shown in FIGS. 1 and 2 will be described together with illustrated examples.

FIG. 1 is a perspective view of the helmet 10, FIG. 2 is a sectional view thereof, and FIG. 3 is an enlarged sectional view of the main part.

In the figure, the helmet 10 is a safety helmet 10 used when carrying out construction work, etc., and is of the type in which a slight flap 12 is provided on the main body 11#.

Also, as for the parts that can be seen from the outside, a solar cell section 20 is provided on the upper surface of the central portion of the helmet 10, and a heat sink 30 as a heat dissipation section is provided around the lower part of the solar cell section 20.

Furthermore, a thermoelectric element 40 is provided inside the bellmet 10, and one side of the thermoelectric element 40 is connected to a heat transfer body 31.
The expansion/contraction device 60 is connected to the heat sink 30 by the heat sink 30, and the expansion/contraction device 60 is brought into contact with the heat storage agent 50 on the other side. In addition, the thing hanging downward from the bottom of Bellme) 10 is Bellme) 10
A bell) 13 for fixing the head to the head.

The solar cell section 20 is formed from a solar cell 21 fixed to the bottom surface of the recess 14 of the helmet 10 and a protective material 22 provided so as to cover the surface of the solar cell 21. This protective material 22 protects the solar cell 21 from external impact, and is made of a transparent and light-resistant material so that sunlight can reach the solar cell 21. It is necessary to be formed. Therefore, as a specific material, for example, transparent acrylic resin or the like is desirable.

In addition, in the illustrated example, this solar cell section 2o is provided in four parts, but
It can also be provided so as to protrude from the center upper surface of the bezel 10. Furthermore, it can also be provided at the hub 12.

It is desirable that the heat sink 30 be made of a material with high thermoelectric conductivity, such as aluminum material. Further, although the illustrated example shows a case in which the heat dissipation plate 3o is provided in a ring shape around the helmet 10, it may be provided in other locations.

Although the thermoelectric element 4o in the illustrated example is provided in a ring shape, it can also be provided in a block shape.

Further, this thermoelectric element 40 can heat or cool the heat storage agent 50 using a changeover switch (not shown).

The heat transfer body 31 is made of a material with good thermal conductivity, such as aluminum, and the heat transfer body 31 and the heat sink plate 3o are thermally connected to each other at an appropriate location on the helmet 10.

The heat storage agent 50 may be solid, a liquid sealed in a bag, or even a sol that is intermediate between a solid and a liquid. . Moreover, this heat storage agent 50 is for transmitting the temperature of one side of the thermoelectric element 40 to the inner surface of the bezel 10. Further, although the shape of the heat storage agent 5o is formed into a ring shape in the illustrated example, it can also be formed into a shape that spans the entire interior of the helmet 10.

Further, the expansion/contraction device 60 is a device that creates a gap between the thermoelectric element and the heat storage agent when the heat storage agent side of the thermoelectric element reaches a set temperature or higher, and is specifically made of a shape memory alloy or the like. It is recommended to use a spring with a Further, when the inside of the helmet 10 is cooled, for example, the expansion/contraction device 60 expands slightly when the temperature reaches 25° C. or higher to create a gap, for example, a gap of 1 mm between the thermoelectric element and the heat storage agent. It has become.

The material for the inner body of the bellet 10 is one that can ensure safety. Further, for convenience of drawing, wiring between the solar cell 21 and the thermoelectric element 40 is omitted.

Next, the actual use of the present invention will be explained using an example in which the inside of the helmet 10 is cooled.

First, set the changeover switch (not shown) to the cooling side.

After that, the user puts on the helmet 10 and goes outside.

Then, the outdoor sun hits the solar cell section 20 of the bell meter 10.

Then, sunlight hits the solar cell 21 through the protective material 22 of the solar cell section 20, so that current flows from the solar cell 21.

The current from the solar cell 21 flows to the thermoelectric element 40, cools the heat storage agent 50 side of the thermoelectric element 40, and at the same time
The first side will be heated.

In this way, when the heat storage agent 50 side of the thermoelectric element 40 is cooled by the electromotive force of the solar cell 21, the expansion and contraction device 60 provided between the thermoelectric element 40 and the heat storage agent 50 contracts, and the thermoelectric element 40 and the heat storage agent 5o will be in close contact with each other.

Then, by energizing the thermoelectric element 40, the heat storage agent 50 side of the thermoelectric element 40 will be cooled, and as a result, the inside of the helmet 10 will be cooled.

At the same time, the heat transfer body 31 is heated, and this heat is transferred to the heat sink 30.
However, this heat is radiated from the heat sink 30.

In the helmet 10 according to the present invention, the solar cell 21 is used as a power source for energizing the thermoelectric element 40, so when the amount of light from the sun is large, that is, when it is hot during the day, the solar cell 21 is activated. Since the electric power becomes large, a large cooling effect is produced inside the helmet 10.

Therefore, before actually using the helmet in construction work, etc.
If you leave it outdoors, the solar cell 21 will be damaged by sunlight.
Since current flows from the inside of the helmet 10, the thermoelectric element 40 is activated and the inside of the helmet 10 is cooled.

Moreover, if the helmet 1O cooled in this manner is suddenly moved indoors where sunlight does not shine on it, the electromotive force from the solar cell 21 will be cut off.

Then, the thermoelectric element 40 will not be cooled, and the heat of the heat transfer body 31 and the heat sink 30, which have become high temperature due to the cooling inside the helmet 10 of the thermoelectric element 40, will be transferred to the thermoelectric element 40.
0, the heat is transmitted to the inside of the helmet 10 via the heat storage agent 50.

However, in the present invention, since the expansion/contraction device 60 is renovated between the thermoelectric element 40 and the heat storage agent 50, the heat transfer body 3 becomes hot.
1. The heat of the heat sink 30 acts on the expansion/contraction device 60. Then, this expansion/contraction device 60 expands due to heating,
The thermoelectric element 40 and the heat storage agent 50 are separated slightly.

As a result, a thin air layer is formed between the thermoelectric element 40 and the heat storage agent 50, and this air layer prevents the heat from the heat transfer body 31 and the heat sink 30 from being transmitted to the inside of the helmet 10. It is.

Therefore, if the cooled helmet 10 is suddenly moved indoors where it is not exposed to sunlight, even if the electromotive force from the solar cell 21 is cut off, the inside of the helmet 10 is prevented from becoming abnormally high temperature. It is something to do.

Note that when the helmet 10 with the thin air layer formed between the thermoelectric element 40 and the heat storage agent 50 is taken out into the sun again, the electromotive force of the solar cell 21 causes the thermoelectric element 4 to
The heat storage agent 50 side of 0 is cooled, and the thermoelectric element 40 and the heat storage agent 5
The expansion/contraction device 60 provided between the helmet and the helmet 10 contracts, bringing the thermoelectric element 40 and the heat storage agent 50 into close contact with each other, thereby cooling the inside of the helmet 10.

Note that the expansion and contraction device 60 is configured to close the thermoelectric element 40 and the heat storage agent 50 when the temperature on the heat storage agent 50 side of the thermoelectric element 40 reaches a set temperature or higher.
Although various devices can be used as long as they create a gap between the two, it is preferable to use a coil spring or a leaf spring made of a shape memory alloy, since it functions only by temperature changes. Of course, other materials such as bimetal can also be used.

Moreover, contrary to the above description, the helmet 1 according to the present invention
0 To heat the interior, set the changeover switch to the heating side.

In addition, as in the case described above, the interior of the helmet 10 can be heated by exposing the solar cell 21 to sunlight.

In this case, the expansion and contraction device 60 allows the thermoelectric element 40 and the heat storage agent 5 to be moved to a place where sunlight does not shine.
A thin air layer is formed between the heat transfer body 31 and the heat sink plate 3.
It is formed so as not to transmit the cold air of 0 to the inside of the helmet 1'O.

Furthermore, in the above explanation, the case where the heat dissipation device is formed only by the heat dissipation plate 30 has been explained as an example, but this heat dissipation plate 3
It is also possible to attach heat dissipation fins or even a fan to the 0.

In the following explanation, the construction helmet 10 is used as an example of the helmet 10, but it is of course applicable to the helmet 10 for autopilot. Further, when applied to a motorcycle helmet 1O in this way, it is suitable to use it in a so-called full-face type helmet 10.

[Effects of the Invention] As explained above, the present invention interposes an expansion/contraction device that expands and contracts depending on the temperature between the thermoelectric element and the heat storage agent, and prevents sunlight from suddenly hitting the outside. Move the thermoelectric element to a room where the temperature is high or low by extending the expansion device with the power to the calorific element cut off and forming a thin air layer between the thermoelectric element and the heat storage agent. This prevents heat or cold air from the outer surface of the helmet from being transmitted to the inside of the helmet, thereby preventing abnormally high or low temperatures inside the helmet.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view, FIG. 2 is a sectional view, and FIG. 3 is an enlarged sectional view of a main part. 10...Helmet) 11...Body 12...
・Brim 13...Belt 14...Concavity
20...Solar cell section 21...Solar cell
22... Protective material 30... Heat sink 3
1... Heat transfer body 40... Thermoelectric element 50...
Heat storage agent 60... expansion and contraction device

Claims (1)

[Claims] 1. The inside of the helmet is equipped with a thermoelectric element and a heat storage agent that contacts one side of the thermoelectric element, and the outer surface of the helmet is provided with a heat dissipation part and a solar cell part, and the other side of the thermoelectric element and a heat storage agent are provided. The thermoelectric element is connected to the heat dissipation part by an electric heating body, and the thermoelectric element and the solar cell of the solar cell part are electrically connected, and between the thermoelectric element and the heat storage agent, the temperature of the heat storage agent side of the thermoelectric element is higher than a set temperature. 1. A heating/cooling helmet device characterized by being attached with an expansion/contraction device that creates a gap between a thermoelectric element and a heat storage agent when the heat storage agent reaches the temperature. 2. The thermal helmet device according to claim 1, wherein the expansion and contraction device is made of a shape memory alloy.