JPH0315076Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an electronic cooling pillow using a thermionic cooling device, and in particular to improving the cooling power of the electronic cooling pillow by improving its heat dissipation method. be.

[Conventional technology]

A conventional electronic cooling pillow will be explained with reference to FIGS. 1, 2, and 3. 1 is an electronic cooling pillow, 2 is an inlet provided at the lower part of both sides of the pillow body, and 3 is an inlet from the inlet 2. This is an air outlet located at the rear of the pillow body at a slightly higher position. Reference numeral 4 denotes a thermoelement, and a cooling plate 5 is provided in close contact with the heat-absorbing side.Furthermore, the upper part of the cooling plate 5 is covered with a mat 6 packed with liquid such as water or a gel-like substance, and the surrounding area of the cooling plate 5 and A heat insulating material 11 is provided around the mat 6. On the other hand, a heat radiator 7 is attached closely to the heat generating side of the thermoelement 4. The suction port 2 and the discharge port 3 communicate with a heat radiation duct 8. The heat radiator 7 is arranged within the heat radiation duct 8 so as to be substantially parallel to the bottom surface 9 of the pillow body. Reference numeral 10 denotes a power cord, and by connecting it to a DC power source (not shown), power is supplied to the thermoelement 4, and a heat absorption phenomenon occurs on the upper surface and a heat generation phenomenon occurs on the lower surface, so that the cooling plate 5 is cooled. The mat 6 is cooled and the radiator 7 is heated. Heat is removed from the heated radiator 7 by the air sucked in from the suction port 2, and the heat is carried through the heat radiation duct 8 to the discharge port 3 and discharged to the outside.

[Problem that the invention attempts to solve]

In conventional electronic cooling pillows, the radiator 7 is arranged below and almost parallel to the bottom surface 9 of the pillow body, so the air suction ports 2 are also located at the bottom of both sides of the pillow body, and the air In the natural state, the flow enters from the suction port 2 as shown by the arrow and passes through the radiator 7.
The heat is absorbed and is not released to the outside from the discharge port 3 through the heat radiation duct 8, but stagnates around the heat radiator 7. Therefore, the heat of the radiator 7 is not released to the outside and is not exchanged with the outside, and as a result, the upper surface of the thermo-element 4 does not absorb heat, and the cooling plate 5 is not cooled. As a result, the mat 6 is not cooled and functions as an original cooling pillow. The disadvantage was that it became useless. In addition, in order to improve the heat exchange of the radiator 7, it is necessary to install a fan motor or the like at the suction port 2 or the discharge port 3 and exchange heat by means of forced ventilation, which complicates the structure and increases the cost. There were drawbacks such as noise being generated and pillows that were supposed to be quiet not being quiet anymore.

The purpose of this invention was to improve the above-mentioned drawbacks, and by making it possible to effectively radiate the heat of the heated radiator on the heat generating side of the thermoelement even in natural ventilation conditions, it improves cooling performance. Our goal is to provide you with an excellent electronic cooling pillow.

[Means for solving problems]

The above purpose is to provide an electronic cooling pillow equipped with a thermionic cooling device comprising a cooling member on the heat absorption side of a thermoelement and a radiator on the heat generation side in thermal contact with one side perpendicular to the longitudinal direction of the main body of the pillow. The radiator, the thermoelement, and the cooling member are provided with an opening consisting of an air inlet and an air outlet provided on the end surface, and a breathable protective guard that covers the opening. This is achieved by using an electronic cooling pillow that is arranged horizontally and the radiator is located between the suction port and the discharge port.

[Effect]

Since the opening is provided on one end surface perpendicular to the longitudinal direction of the pillow body, the radiator located between the air inlet and outlet of the opening can be covered with a blanket, sheet, etc. Hard to cover. This prevents the flow of air from stagnation around the radiator, so that the heat from the radiator does not cease to be emitted. Moreover, since the opening is covered with a breathable protective guard, the radiator can be easily covered with a blanket, a sheet, etc., and the radiator cannot be touched by the head, hands, etc. This allows the radiator to perform sufficient heat exchange under natural ventilation conditions, so that the cooling member will not be left uncooled.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 4, 5, and 6.

12 is an electronic cooling pillow; 13 is an opening provided on the rear surface of the pillow body (one end surface perpendicular to the longitudinal direction); 14 is an air suction port at the bottom of the opening 13;
Reference numeral 5 denotes a discharge port which sucks in air from an air suction port 14 provided at the top of the opening 13 and discharges the air from the top. Reference numeral 16 denotes a heat radiator protruding from a position approximately midway between the air inlet 14 and the air outlet 15 of the opening 13. Reference numeral 4 denotes a thermoelement whose heat generating side is attached closely to the radiator 16, and whose heat absorbing side is attached closely to one side 17a of the cooling plate 17 bent into a substantially L-shape.
The upper part 17b of the cooling plate 17 parallel to the cooling plate 17 is covered with a mat 6 packed with a liquid such as water or a gel-like substance, and the circumference of the cooling plate 17 is insulated with a heat insulating material 19 to form a pillow. There is. Note that 20 is the heat sink 1
This is a protective guard provided in the opening 13 in which the number 6 is protruded. In addition, FIG. 6 shows a short side portion 21 of a substantially T-shaped cooling plate 21 on the heat absorption side of the thermoelement 4.
a in close contact with each other, the upper part of the long side 21b parallel to the bottom surface 18 of the pillow body is covered with a mat 6 packed with liquid such as water or a gel-like substance, and a heat insulating material 22 is placed around the cooling plate 21. The pillow is formed by insulating the pillow.

Next, connect the power cord 10 to a DC power source (not shown)
By connecting to the radiator 16, power is supplied to the thermo-element 4, a heat absorption phenomenon occurs on the side in close contact with the side 17a of the cooling plate 17, a heat generation phenomenon occurs on the side in close contact with the radiator 16, and one side 17a of the cooling plate 17 is cooled. The heat is transferred to the upper part 17b side of the cooling plate 17, and the mat 6 is cooled. Heat is removed from the heated radiator 16 by the air sucked in from the suction port 14 as shown by the arrow. This air becomes lighter and is discharged to the outside from the discharge port 15, and is replenished with lower temperature air from the suction port 14. In this way, the heat sink 1
Since the temperature of 6 is exchanged with external air, a certain constant temperature is maintained between the cooling plate 17 and the radiator 16.
cools the mat 6 via the thermoelement 4 while maintaining a certain temperature difference.

As described above, according to this embodiment, the radiator is arranged so as to protrude at a position within the ventilation duct where the air sucked in from the lower suction port of the opening provided on the rear surface of the pillow body flows to the upper discharge port. In addition to this structure, it is also equipped with a protective guard, so that the air sucked in from the suction port at the bottom of the opening can be placed between the radiator and the discharge port without any obstructions that may impede the flow of air. Difficult to cover with sheets, sheets, etc. As a result, the air that has passed through the radiator and has become lighter is sequentially discharged to the outside through the discharge ports. Therefore, as the heat dissipation from the radiator improves as a characteristic of the thermoelement, heat absorption and heat generation phenomena are activated, the cooling power of the cooling plate increases, the mat is cooled, and its function as a pillow is improved. There is. Furthermore, by improving the heat dissipation effect of the radiator, the radiator can be made smaller than before, resulting in a smaller, lighter, and lower manufacturing cost of the pillow. Furthermore, in pillows with a conventional structure, the cooling plate or mat is located above the radiator, so the heat from the radiator passes through the insulation material and warms the cooling plate, impeding the cooling power of the cooling plate. However, in this embodiment, the upper part of the radiator serves as an air ventilation path, and since the cooling plate is not located at the upper part, the above-mentioned problems can be solved.

In addition, with the structure of this embodiment, the radiator can sufficiently exchange heat even under natural ventilation conditions, so there is no need to use forced ventilation means such as a fan motor to exchange heat, which also has the effect of eliminating noise sources. have

The protective guard prevents your head or hands from touching the radiator, preventing injury to your head or hands, and prevents external loads from being applied to the radiator, preventing direct loads from being applied to the radiator or thermoelement. You can also get effects that are not available.

[Effect of idea]

According to the present invention, in particular, since the radiator is located within the ventilation duct, there are no obstacles that impede the flow of air between the radiator and the discharge port, and
Equipped with a breathable protective guard that covers the opening, making it difficult to cover with blankets, sheets, etc. As a result, the air sucked in from the suction port passes through the radiator placed in the ventilation duct, becomes lighter, and is sequentially released to the outside through the discharge port, so the heat from the radiator is released into a natural ventilation state. It is possible to provide an electronic cooling pillow with excellent cooling performance, in which heat is effectively radiated, and heat absorption and heat generation phenomena are activated in proportion to this effective heat radiation, increasing the cooling power of the cooling plate. Moreover, the protective guard prevents your head, hands, etc. from touching the radiator, which not only provides excellent cooling performance, but also
It also has sufficient effects on safety, which is important in how the pillow is used.

[Brief explanation of the drawing]

Fig. 1 is an external view of a conventional electronic cooling pillow, Fig. 2 is a sectional view taken along line AA in Fig. 1, and Fig. 3 is a sectional view taken along line B-B in Fig. 1.
4 is an external view of the electronic cooling pillow according to the present invention, FIG. 5 is a sectional view taken along line C-C in FIG. 4, and FIG. 6 is a diagram showing a case where the shape of the cooling plate in FIG. 5 is changed. FIG. 4 is a sectional view taken along line CC in FIG. 4; 4...Thermo element, 6...Matsuto, 12
...electronic cooling pillow, 13...opening, 14...air inlet, 15...air discharge port, 16...radiator,
17...Cooling plate, 17a...One side of the cooling plate, 17
b... Upper part of the cooling plate, 18... Bottom of the pillow body, 19...
...Insulating material, 20...Protective guard, 21...T-shaped cooling plate, 21a...Short side of cooling plate, 21b...
... Long side of cooling plate, 22 ... Insulation material.

Claims (1)

[Scope of utility model registration request] In an electronic cooling pillow equipped with a thermionic cooling device in which a cooling member is in thermal contact with the heat absorption side of a thermoelement and a radiator is in thermal contact with the heat generation side, one end surface of the pillow that is orthogonal to the longitudinal direction of the main body is an opening consisting of an air inlet and an air outlet provided, a ventilation passage between the inlet and the outlet, and a breathable protective guard covering the opening; An electronic cooling pillow characterized in that the radiator is located within the ventilation path.