JP5682879B2 - Cooling system - Google Patents

Description

  The present invention relates to a cooling device that cools and sucks inhaled air.

  2. Description of the Related Art Conventionally, as a portable cooling device, a cooling device that jets a volatile fluid used as a coolant and obtains a cool feeling is known (for example, see Patent Document 1).

  This cooling device includes cold air injection means for injecting a volatile fluid used as a coolant into the wearing body. At this time, the mounting body has a garment shape, and is interposed between the first planar member, the second planar member facing the first planar member, and the first and second planar members. And a tube serving as a conduction path for the volatile fluid. Moreover, these 1st and 2nd planar members have air permeability and flexibility, and the thickness dimension of a 2nd planar member consists of a dimension larger than the thickness dimension of a 1st planar member. The tube has an inlet for injecting a volatile fluid into the tube from the cold air injection means, and a plurality of outlets for discharging the volatile fluid between the first and second planar members. The cold air injection means has a container containing a volatile fluid, a connection part detachably connected to the injection port, and an on-off valve for injecting the volatile fluid into the tube by the pressure of the gas enclosed in the container. .

  Therefore, in this cooling device, the mounting body is disposed by the latent heat of vaporization of the volatile fluid by disposing the tube in the mounting body, injecting the volatile fluid by the cold air injection means and injecting the volatile fluid from the discharge port of the tube. Cool the object to be cooled. For this reason, even if the amount of volatile fluid is small, the latent heat of vaporization is large. Therefore, a large amount of heat can be taken by simply injecting the volatile fluid.

JP 2004-218112 A (released on August 5, 2004)

  By the way, due to remarkable progress in various technologies in recent years, it has been contaminated by, for example, crane operators, iron and steel workers, glass and other ceramic workers, or highly toxic chemicals and bacteria. For workers who work in harsh thermal environments to wear so-called protective clothing etc., such as workers who work in a harsh environment, workability and mobility should be improved in order to improve their work efficiency. Development of a technique for obtaining a cool sensation without impairing the quality is desired.

  However, the cooling device of Patent Document 1 lacks maintainability because the mounting body is in the shape of a garment.

  In addition, since the container for storing the volatile fluid must be compact, lightweight and excellent in portability, it is difficult to select the volatile fluid. In particular, from the viewpoint of carrying by an operator, a substance that satisfies safety such as nonflammability and non-ozone destructiveness must be selected, and lack of feasibility from the viewpoint of small size and light weight.

  Then, this invention was made | formed in view of the situation mentioned above, and it aims at providing the cooling device which can exhibit a sufficient cooling effect with a small light weight.

  The cooling device according to the present invention is a cooling device that cools and sucks inhaled air, and a housing that forms the device main body, a cooling unit that is detachably disposed inside the housing and cools the air that has flowed in, Connected to the cooling section and blows air sucked from outside the casing through the cooling section, a power supply section disposed inside the casing for driving the blowing means, and the inside and outside of the casing. The cooling air provided from the end located on the outer side of the housing and the cooling air blown from the cooling portion connected to the end located on the inner side of the housing is blown out from the end located on the outer side of the housing, and cooled. A plurality of partition walls that are alternately inclined along the inner short direction, and the cooling section has a hollow structure having openings at both ends in the longitudinal direction. A cooling fin having an outer periphery A case which is disposed Migihitsuji, filled so as to be interposed between the cooling fins and the casing, and a coolant for cooling the air passing through the cooling fins.

  The cooling device according to the present invention is a cooling device that cools and blows in sucked air and is driven by a cooling unit that cools the air and power supplied from a power supply unit. An air blower that guides the air outlet through the cooling section through the cooling section, the cooling section is covered with a heat insulating material, and is detachably provided inside the casing of the cooling device, The cooling part has a hollow structure provided with openings at both ends in the longitudinal direction, and covers the cooling fin having a plurality of partition walls alternately inclined along the short side direction, and covers the outer periphery of the cooling fin. A case disposed; and a cooling agent that is filled between the cooling fin and the case and that cools the air passing through the cooling fin.

  In the cooling device of the present invention, the cooling unit is connected to an air intake port that takes in air, and the cooling device is configured such that the air taken in from the air intake port by the air blowing unit passes the air blowing unit from the cooling unit. Via, it has a structure that is blown out to the outlet.

  In the cooling device of the present invention, the air blowing means can adjust the amount of the cooled air blown from the air outlet by changing the rotational speed of the fan.

  The cooling device of the present invention may further include a water bottle portion capable of storing water to be supplied to a user of the cooling device.

  In the cooling device of the present invention, the coolant may be a freezing gel.

  In the cooling device of the present invention, the coolant includes at least silicon, strontium, magnesium, europium and dysprosium as essential elements in the freezing gel, and at least silicon oxide, strontium carbonate, magnesium oxide, europium oxide and dysprosium oxide. It is preferable to mix the composition obtained by firing at a predetermined ratio.

  In the cooling device of the present invention, the plurality of partition walls alternately inclined along the short direction of the cooling fin have a saw blade shape and have a multi-stage structure stacked in a vertical direction perpendicular to the plane. It may be.

  In the cooling device of the present invention, the plurality of partition walls alternately inclined along the short direction of the cooling fin each have a rectangular cross section, and have a wide structure expanded in the vertical direction perpendicular to the plane. It may be.

  In the cooling device according to the aspect of the invention, it is preferable that the cooling unit can be connected to the both ends of the cooling fin via the joint unit and the air blowing unit and the air inlet or the air outlet, respectively.

  In the cooling device of the present invention, it is preferable that a pad portion is disposed on the housing, and an intake port for taking in air outside the housing into the blowing means.

  According to the cooling device of the present invention, the air blowing means, the power supply unit for driving the air blowing means, and the air outlet penetrating the inside and outside of the housing are provided inside the housing forming the apparatus main body. The cooling part which can be connected to the means and the outlet and is covered with the heat insulating material is detachably provided. At this time, this cooling part is composed of a hollow structure having openings at both ends in the longitudinal direction, and covers the cooling fins having a plurality of partition walls alternately inclined along the short side direction inside, and the outer periphery of the cooling fin. And a coolant for cooling the air that is filled so as to be interposed between the cooling fin and the case and that passes through the cooling fin. Therefore, since the cooling unit can be reduced in size while being reduced in weight, the cooling device can be reduced in size and weight as a whole. In addition, when the air flowing into the cooling section passes through the cooling fins, it is cooled by the heat exchange action and further forcedly blown by the blowing means, so that a sufficient cooling effect can be exhibited.

  Moreover, since the cooling unit is detachable, even if the cooling effect is weakened, the cooling effect can be continuously obtained by replacing the cooling unit.

  Thus, according to the cooling device of the present invention, it is small and light and can exhibit a sufficient cooling effect.

It is a top view which shows the cooling device which concerns on one Embodiment of this invention. It is a side view which shows the cooling device of FIG. 1 seeing from a side surface. It is a top view which shows the cooling device of FIG. 1 seeing from a back surface side. (A) is a top view of the cooling device having a structure in which the air blowing means is disposed at a position far from the air outlet, and (b) is an upper surface of the cooling device having a structure in which the air blowing means is disposed at a position near the air outlet. FIG. (A) is a bottom view of the cooling device having a structure in which the air blowing means is disposed at a position far from the air outlet, and (b) is a bottom surface of the cooling device having a structure in which the air blowing means is disposed at a position near the air outlet. FIG. (A) is a top view which shows the cooling device which has the structure which has arrange | positioned the ventilation means in the position far from the blower outlet in a partial cross section, (b) is the structure which has arrange | positioned the blower means in the position near the blower outlet. It is a top view which shows the cooling device which has these by a partial cross section. (A) is the AA arrow directional cross-sectional view of the cooling device shown by (a) of FIG. 6, (b) is the AA arrow of the cooling device shown by (b) of FIG. FIG. (A) is a BB arrow directional cross-sectional view of the cooling device shown by (a) of FIG. 6, (b) is a BB arrow of the cooling device shown by (b) of FIG. FIG. (A) is CC sectional view taken on the line of the cooling device shown by (a) of FIG. 6, (b) is CC arrow of the cooling device shown by (b) of FIG. FIG. The cooling part in the cooling device of FIG. 1 is shown, (a) is a side view, (b) is a top view. The cooling part in the cooling device of FIG. 1 is shown, (a) is sectional drawing of a side surface direction, (b) is sectional drawing of a plane direction. A mode that a cooling part is filled with a cooling agent is shown, (a) is a schematic sectional drawing which shows the mode after a filling start, (b) is a schematic sectional drawing which shows the mode of filling completion. The cooling fin of the cooling part in the cooling device of this invention is shown, (a) is a front view which shows the cooling fin in the cooling device of FIG. 1, (b)-(d) is the front which each shows the cooling fin in other embodiment. FIG. It is a schematic block diagram which shows the experimental apparatus for experimenting the cooling effect in the cooling part of the cooling device of this invention. It is a graph which shows the experimental result of the cooling device of this invention. It is a graph which shows the experimental result of the cooling device of this invention.

<Cooling device>
Hereinafter, a cooling device according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 6, the cooling device 1 of the present embodiment is a cooling device that cools and sucks inhaled air, and is detachably disposed within a housing 2 that forms the device main body and the housing 2. A cooling unit 3 for cooling the inflowed air, and a blower unit 4 connected to the cooling unit 3 for blowing the air sucked from the outside of the housing 2 through the cooling unit 3, and the housing 2. The power supply unit 5 for driving the air blowing means 4 and the cooling unit 3 that is disposed through the inside and outside of the housing 2 and connected to the end located inside the housing 2 are cooled. The air outlet 6 that blows out the air from the end located on the outside of the housing 2, and the heat insulating material 7 that is provided inside the housing 2 and is disposed so as to cover the cooling unit 3.

  The housing 2 includes a lid portion 21 and a main body portion 22, and the lid portion 21 is attached to the main body portion 22 so as to be freely opened and closed. The lid 21 and the main body 22 are made of, for example, any synthetic resin including ABS resin (a general name for resins made by polymerizing acrylonitrile, butadiene, and styrene), aramid fiber reinforced plastic, and FRP (Fiber Reinforced Plastics: It can be manufactured using a synthetic material with a fiber reinforced plastic). Thereby, while making the whole housing | casing 2 compact and lightweight, rigidity can be ensured. In addition, the material used for the cover part 21 and the main-body part 22 is not limited to said example.

  Moreover, the housing | casing 2 may be shape | molded so that the thickness may become thin toward the blower outlet 6 side from the side by which the ventilation means 4 is arrange | positioned. Thereby, when the cooling device 1 is used, since the user's neck circumference can be cleaned and the movable range of the neck can be expanded, the ease of use of the cooling device 1 can be improved. The shape of the casing 2 described above is an example, and the shape is not limited to the shape.

  The blower means 4 disposed inside the housing 2 is a blower configured to include a fan 41 and a motor 42 for driving the fan 41. The motor 42 is driven to rotate based on the power supplied from the battery as the power supply unit 5. In addition, it is preferable to apply a rechargeable nickel metal hydride battery as the battery. Thereby, the battery can exhibit excellent performance in terms of safety, performance, and cost. Further, in the present embodiment, the power supply unit 5 is disposed on the side of the cooling unit 3 covered with the heat insulating material 7, but the position where the power supply unit 5 is disposed is limited to the side of the cooling unit 3. However, it can be arranged at an arbitrary position.

  In addition, the air outlet 6 is configured such that the cooling unit 3 is connected to the inner end of the housing 2, and the outer end of the housing 2 is branched into, for example, four parts. The cooled air sent from the cooling unit 3 can be blown out. In addition, the blower outlet 6 should just be able to blow out the cooled air, and the shape of the said blower outlet 6, a number, material, an arrangement position, etc. are not limited.

  In addition, a heat insulating material 7 is disposed inside the housing 2 so as to cover the outer periphery of the cooling unit 3, thereby enabling the cooling effect in the cooling unit 3 to be maintained.

  Further, a urethane pad 9 as a pad portion is provided on the housing 2 (for example, the back surface side of the housing 2, that is, the back surface side opposite to the lid portion 21 in the main body portion 22) (see FIG. 3). An air inlet 22a for taking in air outside the housing 2 into the housing 2 is provided. The housing 2 may be opened corresponding to the position of the air blowing means 4 inside the housing 2.

  For example, the cooling device 1 is mounted on a protective clothing (not shown), for example, so that air cooled in the protective clothing is blown and a wearer wearing the protective clothing is cooled as a cooling target. Is possible. That is, the cooling device 1 is mounted on the protective clothing, the air in the protective clothing is sucked from the intake port 22a, and is circulated through the cooling unit 3 by the blowing means 4, so that the wearer wearing the protective clothing can The body can be cooled effectively.

  Here, examples of protective clothing include a crane operator, an iron and steel worker, glass and other ceramic workers, or a highly toxic chemical or bacterial substance. This is one of work clothes worn by workers who work in an environment. An operator who wears and works with such protective clothing works in a harsh thermal environment because he / she works while wearing the protective clothing. Therefore, even when wearing such protective gear for such workers, it is to be worn on such protective gear to improve work efficiency by effectively cooling the body. Thus, it can be said that the cooling device of the present invention is suitable. However, this is an example, and the present invention is not limited to this.

  The cooling device 1 may be mounted after wearing the protective clothing (that is, from above the protective clothing), or inside the protective clothing (that is, after mounting the cooling device 1, the protective device). Clothes) may be worn. In other words, “attached to the protective clothing” includes a case where the cooling device 1 is included in the protective clothing and a case where the cooling device 1 is exposed to the outside of the protective clothing. The cooling effect of the cooling device 1 can be greatly obtained.

  As shown in FIGS. 6 to 12 and FIG. 13 (a), the cooling unit 3 in the cooling device 1 has a hollow structure having openings 31a and 31b at both ends in the longitudinal direction. A cooling fin 31 having a plurality of partition walls 31c alternately inclined along the hand direction, a case 32 disposed so as to cover the outer periphery of the cooling fin 31 and divided into two with the cooling fin 31 as a boundary, and a cooling fin And a coolant 33 for cooling the air passing through the cooling fins 31 so as to be interposed between the case 31 and the case 32. Although details of the coolant 33 will be described later, it is preferable that the coolant 33 is frozen and used in order to enhance the cooling effect.

  The case 32 is provided with an inlet 32a for injecting the coolant 33 on the side surface side (see FIGS. 10A and 10B). However, the injection port 32a only needs to be able to inject the coolant 33, and the position where the injection port 32a is provided is not limited to the side surface side.

  Moreover, it is preferable that the both ends of the longitudinal direction where the cooling fin 31 and the case 32 of the case 32 abut are configured to prevent moisture from leaking from the inside of the case 32 to the outside ((a) of FIG. 12). And (b)). For example, the above-described structure can be realized by means such as sealing and bonding the both ends, and providing a water-stopping packing made of silicon rubber. The moisture is generated, for example, when the frozen coolant 33 is melted.

  Specifically, the cooling fin 31 as a whole has a rectangular tube shape, and has openings 31a and 31b at both ends in the longitudinal direction. In addition, a plurality of partition walls 31c that are alternately inclined along the short-side direction are formed in the cooling fin 31 over both ends in the longitudinal direction.

  In this case, as shown in FIG. 8A and FIG. 13A, the large and small partition walls 31c are connected in an inclined state. Then, the air flowing in from the opening 31a (which may or may not be directly connected to the blowing means 4) via the joint 81 is moved along the longitudinal direction between the plurality of partition walls 31c in the cooling fin 31. When the air is passed through, the coolant 33 is cooled by the coolant 33 filled in the outer periphery of the cooling fin 31 and sent from the opening 31b to the blower outlet 6 connected via the joint 82. It has come to blow out.

  (A) and (b) respectively included in FIGS. 4 to 9 are different in the arrangement of the cooling unit 3, the air blowing means 4, and the air outlet 6. That is, in the cooling device 1 shown in FIGS. 4 to 9A, the air taken in from the outside by the blowing means 4 (the fan 41 and the motor 42) provided adjacent to the air inlet 22a is cooled by the cooling unit 3. The air cooled by the cooling unit 3 is blown out from the outlet 6.

  On the other hand, in the cooling device 1 shown in FIG. 4 to FIG. 9B, the cooling unit 3 is connected to the intake port 22 a, and the air taken in from the intake port 22 a by the blower 4 is sent from the cooling unit 3. It blows out from the blower outlet 6 via the said ventilation means 4. FIG. In the case of having the structure shown in each of FIGS. 4 to 9B, the cooling device 1 can reduce the resistance through which air flows, so that the efficiency of the blowing pressure can be improved.

Therefore, in the cooling device 1 shown in FIG. 4 to FIG. 9A, for example, a cross flow fan (other fans may be used) is employed as the air blowing means 4 , but FIG. In the cooling device 1 shown in FIG. 4 , a fan smaller than the cross flow fan can be adopted as the air blowing means 4 . As a result, the entire cooling device 1 can be further miniaturized, or the air blowing capacity can be improved by mounting a plurality of small fans while maintaining the size of the cooling device 1. In addition, (b) of FIG. 7 has shown the AA arrow directional cross-sectional view of the state which removed the cover part 21, unlike (a) of FIG.

  The air blowing means 4 can adjust the air volume by changing the rotational speed of the fan 41. Thereby, the wearer of the said protective clothing can adjust suitably the quantity of the cooled air sent in the said protective clothing, for example.

  Moreover, the cooling device 1 can further include a water bottle portion (water supply tank, not shown) capable of storing water to be supplied to a wearer of the protective clothing (a user of the cooling device 1). In this case, for example, the water bottle part is provided in the lid part 21 (may be provided in another part). And the water supply tube connected to the said water cylinder part and arrange | positioned inside the cooling device 1 is extended in the mask part of the said protective clothing. Thereby, the wearer of the said protective clothing can receive water supply at any time only by sucking the said water supply tube.

<Coolant>
Here, the coolant 33 filled between the cooling fins 31 and the case 32 will be described. The coolant 33 may be a freezing gel (a gel having a freezing property).

  On the other hand, the coolant 33 contains at least silicon, strontium, magnesium, europium and dysprosium as essential elements, and a composition obtained by firing at least silicon oxide, strontium carbonate, magnesium oxide, europium oxide and dysprosium oxide; A coolant in which the above-mentioned freezing gel is blended in a predetermined ratio may be used. In this case, the cooling effect can be further obtained at a practical level as compared with the case where the coolant 33 is composed of only a freezing gel. Moreover, since the composition is a silicate compound, the specific gravity is lighter than lead and the processability is excellent. In addition, the composition has the effect of shielding radiation.

The content of silicon (Si) is preferably 5 to 30% by mass, more preferably 10 to 20% by mass.
The content of strontium (Sr) is preferably 30 to 60% by mass, more preferably 40 to 50% by mass.
The content of magnesium (Mg) is preferably 1 to 20% by mass, more preferably 5 to 10% by mass.
The content of europium (Eu) is preferably 0.1 to 5% by mass, more preferably 0.5 to 3% by mass.
The content of dysprosium (Dy) is preferably 0.1 to 5% by mass, more preferably 0.5 to 3% by mass.

  This composition may contain oxygen atoms (preferably 10 to 50% by mass, more preferably 20 to 40% by mass) in addition to the above essential elements. Further, it may contain a boron atom, a radiation absorbing atom other than the above (for example, a lanthanoid element such as erbium) and the like, and may further contain impurities inevitable in production.

  In this case, it is preferable that lead element is not substantially included from a harmful viewpoint. For example, it is 5% by mass or less, preferably 1% by mass or less.

  In addition, in the case of the present invention, the shape of this composition can be processed into a powder (granular), mixed with other organic matter such as powder or fiber (in this case, a freezing gel), and cooled. It can be used as the agent 33.

  Thus, when the composition is granular, for example, the average particle diameter may be 0.1 μm to 1000 μm, preferably 1 μm to 100 μm.

  In addition, this composition may be used alone as a compound containing the above essential elements, for example, water, organic solvents (alcohol, ether, etc.), surfactant, resin binder, inorganic particles, organic particles, You may use together with additives, such as a composition other than this invention.

A suitable method for producing such a composition is characterized by comprising a firing step of mixing and firing a silicon compound, a strontium compound, a magnesium compound, a europium compound and a dysprosium compound. Specifically, for example, a step of mixing and sintering silicon oxide, strontium carbonate (SrCO ₃ ), magnesium oxide (MgO), europium oxide (Eu ₂ O ₃ ), and dysprosium oxide (Dy ₂ O ₃ ). It can manufacture by passing.

As the silicon oxide, any of silicon dioxide (SiO ₂ ), silicon monoxide (SiO) and the like may be used, but in the present invention, SiO ₂ is preferably used.

The blending ratio is not limited, but for example,
20 to 60% by mass of silicon oxide, preferably 30 to 50% by mass,
20-60% by weight of strontium carbonate, preferably 30-50% by weight,
Magnesium oxide 5 to 40% by mass, preferably 10 to 30% by mass,
Europium oxide 0.1-5% by weight, preferably 0.2-1% by weight and dysprosium oxide 0.1-5% by weight, preferably 0.2-1% by weight,
And it is sufficient.

In addition to the raw materials, a boron compound such as boric acid (H ₃ BO ₃ ) may be further added. Thereby, the electron transfer between metals can be made easy at the time of baking, and a redox action can be promoted. Although the compounding quantity of a boric acid is not limited, Preferably it is 0.1-5 mass%, More preferably, it is 0.5-3 mass%.

  After mixing, the raw material may be pulverized by a pulverizer such as a ball mill or a rod mill, or may not be pulverized, but in the present invention, pulverization is preferable.

  The firing temperature may be, for example, 500 to 2000 ° C., preferably 1000 to 1500 ° C. in an electric furnace.

  The firing atmosphere may be either an air atmosphere or an inert gas atmosphere, but is preferably an air atmosphere.

  The firing time may be appropriately determined according to the firing temperature, firing atmosphere, and the like, but may be, for example, 10 minutes to 10 hours, preferably 30 minutes to 5 hours.

<Cooling performance (heat dissipation effect)>
Experiments were conducted as follows for the heat radiation effect, that is, the cooling performance of the cooling device 1 of the present invention in which the cooling unit 3 using the coolant 33 generated as described above is detachably mounted.
First, an experimental apparatus for measuring the cooling performance will be described.

  As shown in FIG. 14, the experimental apparatus 100 has a rectangular box shape as a whole, and includes a main body 101 and a lid 102. Inside the main body 101, there are arranged the air blowing means 103 having the same configuration as the air blowing means 4 described above, the air blowing part 104 corresponding to the air outlet 6 described above, and the heat insulating material 7 covering the cooling part 3. Has been. In the air blowing means 103, the joint portion 103 a is connected to an end portion having one opening 31 a in the cooling fin 31 of the cooling portion 3. Further, the blowout portion 104 is connected to an end portion having the other opening 31 b in the cooling fin 31 of the cooling portion 3. Thermometers 106 a and 106 b are installed immediately above the air blowing means 103 and in the vicinity of the air outlet 104 b that is the other end of the air outlet 104.

  In addition, a lamp 107 (power consumption 8 W) is disposed on the inner side surface inside the apparatus on the lid 102 side of the experimental apparatus 100, and thermometers 106 c and 106 d are arranged toward the outer peripheral side of the lamp 107. is set up.

Here, as a premise, assuming 1 kwh = 860 kcal, and determining the daily basal metabolism of a human,
1548 kcal ÷ 860 = 1.8 kwh
1.8kwh ÷ 24h = 0.075kw = 75w
Can be derived. Based on this, the calorific value (W / m ² ) per surface area is 70 W during sleep, 150 W during desk work, and 600 W during work moving. Therefore, assuming a human body surface area of about 2 m ² , the maximum amount of heat generated is about 1200 W.

Next, the calculation formula of the heat dissipation amount (W) using this experimental apparatus 100 is as follows: the specific gravity of air is γ (kg / m ³ ), the specific heat of air is C (J / kg · K), and the flow rate of air Is Q (m ³ / sec), the exhaust temperature is T ₁ , and the input air temperature is T ₀ , W = γ · C · Q (T ₁ −T ₀ ). At this time, if it is 1 atm, γ · C≈1150 may be set.

In this experiment, the size of the opening 31a is
13mm x 102mm,
0.013 m × 0.102 m = 0.001326 m ² .

Based on this, the amount of blowout (that is, the air flow rate Q) is calculated.
0.001326 m ² × 3.2 m / s = 0.424432 m ³ / s.

Therefore, the heat radiation amount by the experimental apparatus 100 is as follows.
^{W = 1150J / m 3 · K} × 0.0042432m 3 / s (T 1 -T 0)
_{W = 4.87968 (T 1 -T 0} ) J / s
However, 1J = 1W · 1s.

The styrofoam thickness of the experimental apparatus 100 is 20 mm, the external dimensions are 300 × 600 × 490 mm, the weight of the cooling unit 3 is 1491.3 g, and the shape of the partition wall 31c in the cooling fin 31 of the cooling unit 3 is as described above with reference to FIG. The shape shown in (a) was used, and the volume of the cooling unit 3 was set to 1003.5 cm ³ . Further, the volume of the partition wall 31c was set to 265.2 cm ^3, and the volume of the coolant 33 was set to 738.3 cm ³ . In addition, the external temperature at the time of experiment was 26.3 degreeC, and the internal temperature of the cooling fin 31 was -19.3 degreeC. The results obtained from the experiment are shown in Table 1 and the graph of FIG.

  Thereby, according to the cooling unit 3 using the coolant 33, it can be seen that a sufficient amount of heat radiation for cooling the human body can be obtained, that is, a cooling effect can be exhibited.

  As described above, according to the cooling device 1 of the present embodiment, the air blowing means 4, the power supply unit 5 for driving the air blowing means 4, and the housing 2 are provided inside the housing 2 that forms the apparatus main body. The air outlet 6 penetrating the inside and the outside is provided, and the cooling unit 3 that can be connected to the air blowing means 4 and the air outlet 6 and is covered with the heat insulating material 7 is detachably provided. At this time, the cooling unit 3 is composed of a hollow structure having openings 31a and 31b at both ends in the longitudinal direction, and cooling fins 31 having a plurality of partition walls 31c that are alternately inclined along the internal short direction, A case 32 disposed so as to cover the outer periphery of the cooling fin 31, and a coolant 33 for cooling the air that is filled between the cooling fin 31 and the case 32 and passes through the cooling fin 31. It was made to comprise. Therefore, since the cooling unit 3 can be reduced in size while being reduced in weight, the cooling device 1 can be reduced in size and weight as a whole. Further, when the air flowing into the cooling unit 3 passes through the cooling fins 31, it is cooled by the heat exchange action and forcibly blown by the blowing means 4, so that a sufficient cooling effect can be exhibited.

  Moreover, since the cooling unit 3 is detachable, even if the cooling effect is reduced, the cooling effect can be continuously obtained by replacing the cooling unit 3.

  Thus, according to the cooling device 1, it is small and light and can exhibit a sufficient cooling effect.

  Further, in the cooling device 1 of the present embodiment, the cooling unit 3 includes joint portions 81 and 82 at the end on one side (opening 31a side) and the end on the other side (opening 31b side) of the cooling fin 31, respectively. The air blowing means 4 and the air inlet 22a or the air outlet 6 can be connected to each other. Accordingly, the cooling unit 3 can be easily attached to and detached from the inside of the housing 2, and work such as when the cooling unit 3 is replaced in maintenance or the like is facilitated, so that workability and simplicity can be satisfied.

  Furthermore, since the pad portion 9 made of a urethane pad or the like is disposed on the back side of the housing 2, the cooling device 1 can give a comfortable wearing property to the user of the cooling device 1. In particular, when the cooling device 1 is mounted on a protective garment, it is possible to give a more comfortable wearability without imposing a load on the wearer.

  When the cooling device 1 is mounted after wearing the protective clothing (that is, from above the protective clothing), the air outside the housing 2 is blown to the blowing device 4 corresponding to the position of the blowing device 4 on the back surface of the housing 2. Is provided with an intake port 22a (see (a) of FIG. 4 to FIG. 9), and the protective clothing can be installed by connecting the intake port 22a to the interior of the protective clothing. The air inside can be taken into the cooling device 1 and circulated. Thereby, the cooling device 1 can give the air cooled in the comfortable state with respect to the wearer of protective clothing.

  The present invention is not limited to the above-described embodiments, and various improvements and design changes can be made as appropriate without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the case where the partition walls 31c of the cooling fins 31 have a large and small rectangular shape and are connected in an inclined state along the short direction of the cooling fins 31 has been described. However, this is an example and the present invention is not limited to this. That is, the partition wall 31c may be provided vertically, horizontally, diagonally, or a combination thereof. That is, the shape of the partition wall 31c of the cooling fin 31 is along the short direction of the cooling fin 31, as shown in FIG. The plurality of partition walls 31c inclined alternately may have a saw blade shape. Further, as shown in FIG. 13 (d), in which parts corresponding to those in FIG. 13 (a) are given the same reference numerals, the partition wall 31c having the saw blade shape is laminated in a vertical direction perpendicular to the plane. A multi-stage structure (for example, a two-stage structure) may also be used.

  Further, the plurality of partition walls 31c that are alternately inclined along the short direction of the cooling fin 31 are shown in FIG. The partition walls 31c having a rectangular cross section (that is, the partition walls 31c having large and small rectangles are alternately connected in an inclined state), and the rectangular partition walls 31c are perpendicular to the plane. It may be one having a wide structure expanded.

  The cooling performance (heat radiation effect) when the shape of the partition wall 31c of the cooling fin 31 is the two-stage structure shown in FIG. 13D was evaluated in the same manner as described above.

In this experiment, the size of the opening 31a is
17mm x 102mm,
0.017 m × 0.102 m = 0.001734 m ² .

Based on this, the amount of blowout (that is, the air flow rate Q) is calculated.
0.001734 m ² × 3.2 m / s = 0.0055488 m ³ / s.

Therefore, the heat radiation amount by the experimental apparatus 100 is as follows.
W = 1150 J / m3 · K × 0.0055488 m3 / s (T ₁ −T ₀ )
_{W = 6.38112 (T 1 -T 0} ) J / s
However, 1J = 1W · 1s.

The styrofoam thickness of the experimental apparatus 100 was 20 mm, the external dimensions were 300 × 600 × 490 mm, the weight of the cooling unit 3 was 2020.8 g, and the volume of the cooling unit 3 was 1359.5 cm ³ . The volume of the partition wall 31c was 346.8 cm ^3, and the volume of the coolant 33 was 1012.7 cm ³ . In addition, the external temperature at the time of experiment was 26.6 degreeC, the internal temperature of the cooling fin 31 was -22.3 degreeC, and the acrylic surface temperature was -12.1 degreeC. The results obtained from the experiment are shown in Table 2 and the graph of FIG.

  According to this, since the partition wall 31c of the cooling fin 31 has the multistage structure, the area of the partition wall 31c that is touched when air passes is increased, and the volume of the coolant 33 is also increased. As compared with the case of the one-stage structure shown in (a), a more sufficient heat radiation amount can be obtained. Therefore, when a more sufficient heat dissipation amount is required, the shape of the partition wall 31c can be a multistage structure.

DESCRIPTION OF SYMBOLS 1 Cooling device 2 Housing | casing 3 Cooling part 31 Cooling fin 31c Partition 32 Case 33 Coolant 4 Blower means 5 Power supply part 6 Air outlet 81 Joint part 82 Joint part 9 Pad part

Claims (11)

In a cooling device that cools and sucks inhaled air,
A housing forming the device body;
A cooling unit that is detachably disposed in the housing and cools the sucked air;
A blowing means connected to the cooling unit and blowing the air sucked from the outside of the housing through the cooling unit;
A power supply unit disposed inside the housing for driving the blowing means;
A blower that blows out the cooled air blown from the cooling unit disposed through the inside and outside of the housing and connected to the end located on the inside of the housing from the end located on the outside of the housing. Exit,
A heat insulating material provided inside the housing and arranged to cover the cooling unit,
The cooling part is
A cooling fin having openings at both ends in the longitudinal direction, having a hollow structure inside, and having a plurality of partition walls alternately inclined along the short direction,
A case disposed so as to cover the outer periphery of the cooling fin;
Wherein a periphery of the cooling fins and a cooling却剤that will be filled so as to be interposed between said cooling fins and said casing,
The cooling unit is configured to allow the sucked air to pass between the plurality of partition walls provided in the hollow structure along a longitudinal direction of the cooling fin, whereby the cooling filled in an outer periphery of the cooling fin. A cooling device characterized in that the sucked air is cooled with an agent . A cooling device that cools and sucks inhaled air,
A cooling unit for cooling the inhaled air;
An air blower that is driven by electric power supplied from a power supply unit and guides the sucked air to a blowout port that penetrates the inside and outside of the housing through the cooling unit;
Before Symbol cooling section,
An opening provided at both ends in the longitudinal direction has a hollow structure therein, a cooling fin having a plurality of partition walls in the hollow structure inside the inclined alternately along the widthwise direction,
A case disposed so as to cover the outer periphery of the cooling fin;
Wherein a periphery of the cooling fins seen including a cold却剤that will be filled so as to be interposed between said cooling fins and said casing,
The cooling unit is configured to allow the sucked air to pass between the plurality of partition walls provided in the hollow structure along a longitudinal direction of the cooling fin, whereby the cooling filled in an outer periphery of the cooling fin. A cooling device characterized in that the sucked air is cooled with an agent . The cooling unit is connected to an intake port for taking in air,
The cooling device has a structure in which air taken in from the air inlet by the air blowing unit is blown out from the cooling unit to the air outlet through the air blowing unit. Item 3. The cooling device according to Item 1 or 2.   4. The apparatus according to claim 1, wherein the air blowing unit is capable of adjusting an amount of the cooled air that is blown out from the air outlet by changing a rotation speed of the fan. 5. The cooling device as described.   The cooling device according to any one of claims 1 to 4, further comprising a water bottle portion capable of storing water to be supplied to a user of the cooling device.   The cooling device according to claim 1, wherein the coolant is a freezing gel.   The coolant is a composition obtained by calcining at least silicon oxide, strontium carbonate, magnesium oxide, europium oxide and dysprosium oxide with at least silicon, strontium, magnesium, europium and dysprosium as essential elements on the freezing gel. These are blended at a predetermined ratio, and the cooling device according to claim 6. The plurality of partition walls alternately inclined along the short direction of the cooling fin has a saw blade shape,
The cooling device according to any one of claims 1 to 7, wherein the cooling device has a multistage structure in which the layers are stacked in a vertical direction perpendicular to a plane. The plurality of partition walls alternately inclined along the short direction of the cooling fins each have a rectangular cross section,
The cooling device according to any one of claims 1 to 7, wherein the cooling device has a wide structure expanded in a vertical direction orthogonal to a plane.   The said cooling part can connect the said ventilation means, an inlet port, or the said blower outlet to the both ends of the said cooling fin via a joint part, respectively. The cooling device according to claim 1.   11. The housing according to any one of claims 1 to 10, wherein the housing is provided with a pad portion and an intake port for taking air outside the housing into the blowing means. The cooling device according to 1.