JP3933658B2 - Portable cold / hot air equipment - Google Patents

Description

  The present invention relates to a portable cold air / warm air device, and more particularly to a portable cold air / warm air device for cooling or heating the upper body of a human body.

Conventionally, a portable cooling device or a portable heating device using a solid cooling / heating element such as a Peltier element is known. The technique described in Patent Literature 1 below cools the user's upper body by blowing air cooled by a Peltier element into the clothes through a hose with a blower. In the device described in Patent Document 1, an air intake port is provided at a predetermined position of the upper garment in order to blow the cooled air into the upper garment. In the technique described in Patent Document 2 below, air cooled by a Peltier element is blown to the inside of clothes through a hose by a blower to cool the upper body of the user. In the apparatus described in Patent Document 2, a blower pipe is inserted into the upper garment in order to blow the cooled air into the upper garment.
JP-A-4-159119 (FIGS. 3 and 4) Japanese Utility Model Publication No. 63-15415 (FIGS. 1, 2 and claims)

  However, in the technique described in Patent Document 1, it is necessary to prepare a dedicated upper garment in advance because it is necessary to provide an intake port in the upper garment itself in order to blow the cooled air into the upper garment. When a general user wears an upper garment that is usually worn, that is, a normal shirt, blouse, setter, work clothes, etc., a special upper garment must be worn thereon. Moreover, in the technique of the said patent document 2, since the pipe which blows the cooled air is inserted in the inside of an upper garment, a user removes the button of an upper garment at the time of wear, and inserts a pipe in the upper garment etc. Since the pipe is located inside the upper garment during use, the pipe touches the skin directly or through the underwear, which may cause discomfort. Therefore, an object of the present invention is to provide a portable cold air / warm air device that does not require a special upper garment or the like and does not cause discomfort during use.

In order to achieve the above object, according to the present invention, a solid cooling / heating device and a blower device are provided in a bag portion of a shoulder bag, and a blower pipe provided with cooled or heated air along a shoulder belt of the shoulder bag is provided. Through the user's upper body.
That is, according to the present invention, a portable cold air / hot air device having a solid cooling / heating device and a blower device,
A bag portion for holding the solid cooling / heating device and the blower;
A shoulder belt for hanging on the shoulder as a shoulder bag for the user to carry the bag part, having a blower path for guiding air cooled or heated by the solid cooling / heating device, A shoulder belt having a blowout port for discharging air guided from the predetermined position of the shoulder belt to the outside, and the blowout port is fixed to a surface of the shoulder belt; The shoulder belt is movable in the longitudinal direction of the shoulder belt along the guide plate, and has a tubular base having a through hole on the side facing the guide plate, and the shoulder belt is positioned at the position of the through hole. In addition, when a through-hole is provided and the base is in the first position in the longitudinal direction of the shoulder belt, an empty space inside the base is formed. Is discharged to the back side of the shoulder belt through the through hole of the base, the through hole of the guide plate, and the through hole of the shoulder belt, and the base is a second position in the longitudinal direction of the shoulder belt. When the portable cold air is used, the through hole of the guide plate is closed by the base, and the air inside the base is discharged only from the opening end of the base. A warm air device is provided.

  The inclination angle of the base is adjustable with the longitudinal direction of the shoulder belt as an axis, and thus the discharge direction of the air guided by the air passage can be freely adjusted. This is a preferred form.

  The solid cooling / heating device has at least two plate-like solid cooling / heating elements; and a heat transfer tunnel member in close contact with the at least two plate-like solid cooling / heating elements and having a plurality of air flow paths; Having a is a preferred form of the invention.

  A heat pipe part of which is in close contact with a surface opposite to a surface of the plate-shaped solid cooling / heating element that is in contact with the heat transfer tunnel member; and a position separated from the solid cooling / heating device. Having a heat sink in close contact with another part of the heat pipe portion is a preferred embodiment of the present invention.

  It is a preferable mode of the present invention to have a bypass unit that feeds back a part of the air blown by the blower to a predetermined portion of the solid cooling / heating device.

  It is a preferred embodiment of the present invention that the blower is an axial fan.

  It is a preferred embodiment of the present invention that the solid state cooling / heating device is a Peltier element.

  According to the present invention, a cooling / heating device including a solid cooling / heating device and a blower device is arranged in the bag portion of the shoulder bag, and the cooled or heated air is passed through the blower pipe arranged along the shoulder belt of the shoulder bag. The user can use the portable cold air / warm air device of the present invention with the same feeling as when using a normal shoulder bag. There is no need for clothes and there is no discomfort during use, and cold air or hot air can be easily obtained while walking, working or working.

  A preferred embodiment of the portable cold air / warm air device of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the vicinity of a shoulder bag portion of a preferred embodiment of the portable cold air / warm air device of the present invention, and FIG. 2 is used by a user of the portable cold air / warm air device shown in FIG. It is a schematic diagram which shows the state which is carrying out. As shown in FIG. 1, the portable cold air / warm air device of the present invention has a bag body (also referred to as a bag portion) 10 and a shoulder belt 15, and inside the bag portion 10 is shown in FIG. An air conditioner 50 is arranged. Since the bag part 10 is mainly comprised of the cloth 18 which is a material having high air permeability such as cloth, external air can be fed into the air conditioning apparatus 50 without resistance. As the name implies, the air-conditioning apparatus 50 has a function of sending out either cool air or warm air for cooling and heating. In this embodiment, the polarity of the voltage applied to the Peltier element to be described later is set. By switching, cold air and hot air can be switched. For convenience of explanation, the present embodiment takes as an example a case where it is used as a portable cooling device that discharges cold air.

  The shoulder belt 15 having end portions attached to the front and rear of the bag portion 10 is formed of a flat member made of synthetic leather or a textile product. On the other hand, a blower pipe 11 constituting a blower passage is provided along the shoulder belt 15 over about 50 cm from the vicinity of one end of the shoulder belt 15. The air duct 11 can be made of synthetic leather, plastic synthetic resin, or the like. As shown in FIG. 5, the blower pipe 11 has one open end 11 </ b> A connected to the discharge port of the air conditioner 50, and the user's neck with the shoulder belt 15 on the shoulder as shown in FIG. 2. Another opening end 11B is provided at a predetermined position so as to cool the periphery. The blower tube 11 has a portion 11s at a predetermined distance from one open end 11A, and the cross section thereof is a flat ring shape as shown in FIG. 3B. In (a), the portion from the position indicated by x to the opening end portion 11B shown in FIG. 4 (a) is expanded, and the width of the expanded portion (hereinafter referred to as the expanded portion 11t) is adjusted. It has become a shape. Here, the relationship between FIG. 3A and FIG. 4 will be described. FIG. 3A shows the side closer to the bag portion 10 of the blower pipe 11 provided along the shoulder belt 15, and FIG. The periphery of the nozzle | cap | die 12 shown in FIG. 2 is shown.

  The development portion 11t is bonded or stitched to the shoulder belt 15 at both edges of the development portion 11t so as to cover one side of the shoulder belt 15. That is, as shown in FIG. 3C, the development portion 11 t forms an air passage in cooperation with the shoulder belt 15. A marginal portion 11u is provided at the end of the annular portion at the position x of the blower tube 11. Further, both edge portions of the development portion 11t also have respective marginal portions 11v and 11w. These marginal portions 11u, 11v, and 11w are fixed on one side of the shoulder belt 15 by bonding or stitching.

  FIGS. 4A and 4B are diagrams showing the structure near the opening end 11B of the blower tube 11, where FIG. 4A is a plan view, FIG. 4B is a side sectional view, and FIG. 4C is an opening end 11B. It is a top view which shows the shape of the guide plate 16 provided only. As shown in FIG. 4, in the vicinity of the opening end 11 </ b> B of the blower tube 11, the guide plate 16 is fixed on one surface of the shoulder belt 15, that is, the surface on the side forming the air passage. A base support portion 14 is provided inside the blower tube 11 and at a position away from the opening end portion 11B by a predetermined distance. The base support part 14 is a tubular member having a rectangular cross section, and has a large diameter part 14a and a small diameter part 14b. The large diameter part 14a is fixed to one side of the guide plate 16 and the inner surface of the development part 11t. . One open end 12 </ b> A of the base 12 is fitted to the outer periphery of the small diameter part 14 b of the base support part 14.

  The base 12 has a flat tubular structure having open ends 12A and 12B at both ends. The base 12 has a tapered shape with a width that decreases from the opening end 12A toward the opening end 12B. Further, an extension portion 12C is provided on one side of the portion ahead of the opening end portion 12B, and the operation knob 13 is fixed to the extension portion 12C. The operation knob 13 has a knob portion 13a and a pin portion 13b fixed to the extension portion 12C so as to penetrate the extension portion 12C. The pin portion 13b has a guide groove engaging portion 13c protruding toward the guide plate 16 side. The guide groove engaging portion 13 c is engaged with a guide groove 16 a provided in the guide plate 16.

  When the guide groove engaging portion 13c is at the position 16x in FIG. 4C, the base 12 is at the positions shown in FIGS. 4A and 4B. In this state, the through holes 12b, 12c, 12d provided in the base 12 are provided with holes 16b, 16c, 16d provided in the guide plate 16, and back holes 15b, 15c, 15d provided in the shoulder belt 15. Therefore, a part of the air blown from the base 12 is discharged from the back side of the shoulder belt 15, and the vicinity of the chest of the user can be cooled. When the user operates the knob 13a to move the guide groove engaging portion 13c to the position 16y, the base 12 moves to the left in the figure from the positions shown in FIGS. 4 (a) and 4 (b). By this movement, the back surface holes 15 b, 15 c, 15 d provided in the shoulder belt 15 and the holes 16 b, 16 c, 16 d provided in the guide plate 16 are closed by the base 12. In this state, all of the air blown from the base 12 is discharged from the opening end 12B of the base 12 without being discharged from the back side of the shoulder belt 15.

  In this state, when the user operates the knob 13a and the guide groove engaging portion 13c moves to the position 16p, the base 12 moves upward in the figure from the position shown in FIG. Conversely, when the user operates the knob 13a and the guide groove engaging portion 13c moves to the position 16q, the base 12 moves downward in the figure from the position shown in FIG. Therefore, the opening end 12B of the base 12 can be adjusted in inclination within a predetermined angle range with respect to the axial direction of the shoulder belt 15, and accordingly, cool air is applied to the neck, face, etc. according to the user's preference. It becomes possible. As described above, the guide groove engaging portion 13c is movable along the guide groove having the shape reversed from the letter “E”, and the position and inclination of the base 12 can be arbitrarily selected according to the guide groove. It is.

  An air conditioner 50 is arranged inside the bag portion 10, and the air conditioner 50 includes a casing 50 </ b> A and various components attached to the inside as shown in FIG. 5. That is, the opening end portion 11 </ b> A of the blower tube 11 is connected to the axial fan 6 that forms the discharge port of the cooling / heating device 50. In the figure, 17 is a heat radiating plate, 29 is a heat radiating window, 19 is an air intake window, 20 is a cool / warm air mount, and 21 is a dew condensation tank. 6A and 6B are diagrams showing the main equipment part of the air-conditioning apparatus 50 in FIG. 5, wherein FIG. 6A is a front view, FIG. 6B is a side view, and FIG. In FIG. 6, 8 is a Peltier element that acts as a cooling element (or heating element), and 22 is a heat exchange grid. Although not shown in FIGS. 5 and 6, a power source and a control circuit for driving and controlling the cooling element 8 and the axial fan 6 are provided as a part of the cooling / heating device 50.

Next, the electric system centering on the control circuit of the air conditioning apparatus 50 will be described.
<Cool air temperature and air flow control circuit>
Since cold air or hot air generated by a portable cold air device (or hot air device) is often blown directly onto the human body, it is desirable that the temperature and air volume can be controlled manually or automatically. Furthermore, since a battery is often used as a portable device, it is desirable that the energy of the battery is not consumed by a resistor and can be used without waste. A configuration example of such a control device is shown in the block diagram of FIG.

  In FIG. 7, the outside air cooled by the cooling element 8 typified by a Peltier element is sucked out by the axial fan 6 and supplied as cold air to the blower pipe 11 shown in FIG. The direct current generated by the direct current power source 103 using a nickel cadmium battery or the like is subjected to pulse width modulation by the PWM converter 105 and the FET and applied to the cooling element 8 via the switch S101. Since the pulse width W generated by the PWM converter 105 changes according to the operation of the resistor R101 connected to the pulse width setting terminal 2 of the PWM converter 105, the on-time of the FET increases or decreases accordingly, and as a result, the cooling element 8 The effective current flowing through the axial flow changes, and the temperature of the cold air blown from the axial fan 6 can be changed manually. In order to obtain a stable cold air temperature, the terminal voltage of the resistor R101 is kept constant by the constant voltage circuit 104. Thus, the effective current flowing through the cooling element 8 is subjected to pulse width control instead of being wasted due to series resistance or the like, so that the temperature of the cold air can be changed to an extremely high efficiency.

  Here, the FET turns on and off the current flowing through the cooling element 8 according to the pulse width W, clamps the negative side of the pulse current to ground, and causes the cooling element 8 to move in one direction (for example, plus) according to the pulse width W. (Polarity) pulse current flows. When a Peltier element is used as the cooling element 8, if the polarity of the applied current is reversed due to its nature, the cooling surface and the heat generation surface are reversed. Therefore, simply adding a pulse waveform current cools the intake air. And heating are alternately performed, and as a result, the target cold air or hot air is not generated. Therefore, such a clamp circuit is necessary.

   On the other hand, a temperature sensor 106 using a thermistor or the like is provided at the cold air discharge portion of the axial flow fan 6, and current is supplied from the constant voltage circuit 104 through the resistor R 103. The terminal voltage of the temperature sensor 106 is applied to the fluctuation input terminal 1 of the PWM converter 105. Since the PWM converter 105 functions so as to change the pulse width W so that the potential difference between the terminals 1 and 2 becomes zero, as a result, the PWM converter 105 is automatically controlled to the cold air temperature set by operating the resistor R101.

  S101 is a changeover switch that reverses the polarity of the current applied to the cooling element 8 and switches between cold air and hot air. For example, Fujitsu M34063 or Sharp 3M02A can be used as the PWM converter 105, but in that case, a constant voltage circuit is pre-installed and its output terminal is provided. The constant voltage circuit 104 shown in the figure can be omitted.

On the other hand, the direct current generated by the direct current power source 103 is applied to the axial fan 6 via the resistor R102. Here, by switching the switch S102 between H and L, the resistor R102 is short-circuited or opened, and the air flow by the axial fan 6 is manually controlled to be high or low. It should be noted that an air volume sensor is provided as an equivalent to the temperature sensor 106 in FIG. 7, and the same control circuit as the series of control circuits composed of the PWM converter 105 and FET used for the current control of the cooling element 8 is provided separately. If the current of the fan 6 is controlled, it is possible to automatically control the amount of discharged cool air or warm air. By automatically controlling the temperature and air volume of the cold or hot air generated in this way, the temperature and air volume of the generated cold or hot air can be kept constant even if the outside air temperature changes or the battery voltage fluctuates. Can do.
Although the axial fan 6 is provided on the exhaust side of the cooling element 8 in FIG. 7, it may be configured on the intake side to push outside air into the cooling element 8 instead.

<Structure of cooling tunnel>
In order to generate cold air, a Peltier element is arranged on a part of the inner wall of the cooling tunnel through which the outside air passes, and the outside air introduced by the axial fan 6 is brought into contact with the cooling surface to cool, but the Peltier element generally has a planar structure. Therefore, since only a part of the air passing through the cooling tunnel touches the cooling surface as it is, the cooling effect is extremely limited. Therefore, as shown in FIG. 8, it is preferable to configure a cooling tunnel by facing at least two Peltier elements. Furthermore, if a cooling tunnel with three Peltier elements, or a quadrilateral cross section with four Peltier elements, and a hexagonal cross section with six Peltier elements, the amount of air in contact with the cooling surface increases, resulting in a large cooling effect. It is done.

  If the inside of the cooling tunnel is not left hollow and a lattice-shaped heat exchanger (heat exchange lattice) made of a material with high thermal conductivity such as an aluminum plate is inserted inside, the cooling surface of the Peltier element can be removed. The cooling effect is improved by cooling the surface of the heat exchange grid uniformly by heat conduction. However, when the heat exchange lattice is actually made of an aluminum plate, it is difficult to completely contact the cooling surface of the Peltier element, and the heat exchange effect is still limited. Therefore, if this heat exchange lattice is made of an aluminum drawer-molded product as shown in FIG. 8, it can be brought into close contact with the cooling surface of the Peltier element, and a highly efficient heat exchange effect can be obtained. In FIG. 8, the air passage of the heat exchange lattice is shown as a square, but if the honeycomb is formed in a honeycomb shape, that is, a hexagon, the contact area may be increased.

<Heat dissipation of Peltier element>
The Peltier element has a structure in which the heat radiation surface and the cooling surface are quite close to each other. Therefore, there is a problem that heat generated on the heat radiating surface warms the cooling surface by conduction and radiation. Therefore, as shown in FIG. 8, it is usual to dissipate the generated heat by providing a heat sink in close contact with the heat radiating surface. However, since the cooling surface and the heat radiating surface are close to each other, there is a limit to avoiding the influence of heat dissipated from the heat sink. As a countermeasure, the heat sink is not provided directly on the heat generating surface, but is connected by a heat pipe as shown in FIG. 9, so that the heat sink can be disposed at an arbitrary place away from the heat generating surface.

<Forced cooling of heat sink>
The Peltier element has a property that the temperature of the cooling surface depends on the temperature of the heat dissipation surface. The temperature difference between the cooling surface and the heat dissipation surface during the operation of the Peltier element is called a maximum temperature difference, and is 30 degrees Celsius in an example of a product. For example, if the temperature of the heat dissipation surface provided with the heat sink for natural heat dissipation is 60 degrees Celsius, the temperature of the cooling surface does not become 30 degrees Celsius or less, and the temperature of the air passing through the cooling surface is It means saturation at 30 degrees and no further decrease. Therefore, in order to reduce the temperature of the cooling surface below 30 degrees and obtain a sufficiently cooled cold air, it is necessary to further lower the temperature of the heat dissipation surface by some means. Therefore, instead of natural heat dissipation, it is often performed to forcibly cool the heat sink with a separately provided fan. However, in a portable device, if a fan is provided separately, the battery is consumed for driving the fan, and noise is also generated, which is not desirable. Therefore, as shown in FIG. 10, it can be considered that a part of the cool air blown out from the axial fan 6 is branched by a duct and blown to a heat sink to cool it. In this case, although the amount of cool air sent to the blower pipe is reduced, the cool air whose temperature has been lowered can be sent out.

<Recooling of cold air by recirculation>
With portable cold air devices, you may want a special cold air even if the air volume is small, especially at the start of use. Therefore, it is conceivable to reduce the temperature of the cold air by mixing a part of the generated cold air into the intake air and circulating it. An example is shown in FIG. In FIG. 11, when the axial fan 6 rotates, the discharge side becomes positive pressure and the intake side becomes negative pressure. Therefore, when the known control device 501 opens the bypass valve, one of the cold air generated by the axial fan 6 is detected. The part passes through the bypass and is circulated to the intake side and cooled again in the cooling tunnel. Therefore, the cold air sent out to the blower pipe (not shown) has a correspondingly reduced air volume but a reduced temperature. Here, when the flow rate control valve driven by the control device 501 is closed to some extent, the amount of the cool air to be circulated increases and the amount of the cool air sent to the blower pipe decreases, but the temperature further decreases. When the flow rate control valve is completely closed, all of the cold air generated by the axial fan 6 circulates, passes through the cooling tunnel and is circulated and re-cooled to cool the cold air temperature to the cooling surface temperature of the cooling element. become. At that time, if the control device 501 opens and closes the flow rate control valve intermittently, cold air at a lower temperature can be intermittently blown to the human body through the blower pipe instead of continuous cold air. As is clear from the example of a fan or a swinging fan, there is no significant change in obtaining a refreshing feeling even if the cold air blown is intermittent.

  In the above embodiment, the cooling / heating device is arranged inside the shoulder bag, and the vicinity of the user's neck is cooled by discharging cold air from the air duct arranged along the shoulder belt. The portable cold air / warm air device is not limited to this, and as shown in FIG. 12, a cooling / heating device 50B and a blower pipe 11C integrated therewith are arranged on a belt 30 wound around the user's waist, and an outlet 23A is appropriately provided. , Can also be arranged.

  Further, instead of providing the air duct and the air outlet on the belt, as shown in FIG. 13, air outlets 23B are provided everywhere on the thin and soft tubular member 24, and this tubular member 24 is inserted into the chest of the kimono, or one piece Also, Velcro (registered trademark) or the like may be fixed inside the skirt. In FIG. 13, reference numeral 31 denotes a bellows that gives flexibility to the two tubular members 24. Further, for a worker in a narrow place, the heat radiating plate 17 shown in FIGS. 5 and 6 can be water-cooled instead of air-cooled in order to enhance the heat radiation effect. FIG. 14 shows a configuration in which the cooling water tank 25 is brought into contact with the heat radiating plate 17 in order to realize such a water cooling system. In FIG. 14, 26 is a pump, 27 is a circulation pipe, and 28 is a large water tank. The large water tank 28 can be arranged near the user, supplies cold water to the cooling water tank 25 via the circulation pipe 27, collects the cooling water having heat, and enhances the heat dissipation effect of the heat radiating plate 17. be able to.

  In the above embodiment, a portable power source such as a battery is used as the power source. However, in the case of a portable cold air / hot air device used outdoors during the day, solar power generation can be used. That is, if a solar panel is arranged on a parasol or a hat and the generated power is supplied to the battery, it is not necessary to increase the capacity of the battery, and the weight is reduced, which is convenient and economical.

  As described above, the portable cool air / warm air device of the present invention is for personal use that requires cooling and heating, and is useful in the field of portable air conditioning devices.

It is a perspective view which shows a shoulder bag part and a part of shoulder belt in preferable embodiment of the portable cold-air / hot-air apparatus of this invention. It is a schematic diagram which shows the state in which the user is using the portable cold wind / hot air apparatus of FIG. It is a figure for demonstrating the structure of the ventilation pipe | tube of the portable cold wind / warm air apparatus of FIG. It is a figure for demonstrating the structure of the opening edge part vicinity of the ventilation pipe | tube of the portable cold wind / warm air apparatus of FIG. It is a perspective view which shows the air conditioning apparatus of the portable cold air / hot air apparatus of FIG. It is the front view (a) which shows the principal part of the air conditioning apparatus of FIG. 5, a side view (b), and a bottom view (c). It is a block diagram which shows the electric circuit of the air conditioning apparatus of FIG. It is a structural diagram which shows the modification of the principal part of the air conditioning apparatus of FIG. It is a structural diagram which shows the modification of the principal part of the air conditioning apparatus of FIG. It is a schematic diagram which shows the modification of the principal part of the air conditioning apparatus of FIG. It is a schematic diagram which shows the other modification of the principal part of the air conditioning apparatus of FIG. It is a perspective view which shows the other structural example of the portable cold wind / warm air apparatus of this invention. It is a schematic diagram which shows the structure of the air blowing part in the further another structural example of the portable cold wind / warm air apparatus of this invention. It is a perspective view which shows the structural example which deform | transforms the portable cold wind and warm air apparatus of this invention to a water cooling system.

Explanation of symbols

6 Blower (axial fan)
8 Solid cooling / heating device (cooling element, Peltier element)
10 Bag body of the shoulder bag (bag part)
11, 11C Blower pipe (blower passage)
11A Open end (solid cooling / heating device side)
11B Open end (outlet side)
12 Base 12A Open End 12B Open End 12C Extension
DESCRIPTION OF SYMBOLS 13 Operation knob 14 Base support part 15 Shoulder belt 16 Guide plate 17 Heat sink 18 Fabric 19 Intake window 20 Cooling / heating wind mounting base 21 Condensation tank 22 Heat exchange grid 23A, 23B Outlet 24 Tubular member 25 Cooling water tank 26 Pump 27 Circulation pipe 28 Large water tank 29 Radiating window 30 Belt 31 Bellows 50, 50B Air conditioning unit 50A Casing 103 DC power supply 104 Constant voltage circuit 105 PWM converter 106 Temperature sensor 501 Control device

Claims (7)

In portable cold air / hot air device having a solid cooling / heating device and a blower,
A bag portion for holding the solid cooling / heating device and the blower;
A shoulder belt for hanging on the shoulder as a shoulder bag for the user to carry the bag part, having a blower path for guiding air cooled or heated by the solid cooling / heating device, A shoulder belt having a blowout port for discharging air guided from the predetermined position of the shoulder belt to the outside, and the blowout port is fixed to a surface of the shoulder belt; The shoulder belt is movable in the longitudinal direction of the shoulder belt along the guide plate, and has a tubular base having a through hole on the side facing the guide plate, and the shoulder belt is positioned at the position of the through hole. In addition, when a through-hole is provided and the base is in the first position in the longitudinal direction of the shoulder belt, an empty space inside the base is formed. Is discharged to the back side of the shoulder belt through the through hole of the base, the through hole of the guide plate, and the through hole of the shoulder belt, and the base is a second position in the longitudinal direction of the shoulder belt. When the portable cold air is used, the through hole of the guide plate is closed by the base, and the air inside the base is discharged only from the opening end of the base. Hot air device. The inclination angle of the base can be adjusted with the longitudinal direction of the shoulder belt as an axis, and thus the discharge direction of the air guided by the air passage can be freely adjusted. Item 2. A portable cold air / warm air device according to item 1 . The solid cooling / heating device has at least two plate-like solid cooling / heating elements; and a heat transfer tunnel member in close contact with the at least two plate-like solid cooling / heating elements and having a plurality of air flow paths; The portable cool air / warm air device according to claim 1 . A heat pipe part of which is in close contact with a surface opposite to a surface of the plate-shaped solid cooling / heating element that is in contact with the heat transfer tunnel member; and a position separated from the solid cooling / heating device. The portable cool air / warm air device according to claim 1, further comprising a heat sink closely attached to another part of the heat pipe portion. The portable cold air / hot air device according to claim 1, further comprising bypass means for feeding back a part of the air blown by the blower to a predetermined portion of the solid state cooling / heating device. The portable cool air / hot air device according to claim 1, wherein the blower is an axial fan. The portable cool air / warm air device according to claim 1, wherein the solid state cooling / heating device is a Peltier element.

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