JP4750760B2 - Cooling system - Google Patents

Description

  The present invention generally relates to a cooling device, and more particularly, to a cooling device that generates an ionic wind and cools food, a room, an article, and the like using the ionic wind.

  Conventionally, a freezing technique has been used as a method for preserving food and the like. In this freezing technique, it is desirable to rapidly freeze the food in order to maintain the quality of the food. In order to rapidly freeze foods, heat is efficiently taken away from foods as objects by sending cold air into the refrigerator as air and uniformizing the temperature in the freezer compartment.

  However, in the method using a conventional fan as a method of blowing air, there is a problem that frost or the like adhering to the drive unit of the fan becomes an obstacle and it is difficult to drive the fan well.

  On the other hand, as a blowing method without using a fan, there is a method using an ion wind generator.

  For example, Japanese Patent Laying-Open No. 2003-88347 (Patent Document 1) discloses a configuration of a refrigeration apparatus that cools an object to be frozen using ion wind. This refrigeration apparatus includes an air blowing unit that blows cold air in a freezer to an object to be frozen, and an ion wind generator that superimposes ion wind on the cold air blown by the air blowing unit. In this refrigeration apparatus, an ion wind generator is arranged in the freezer, and by supplying cold air superimposed with ionic wind to the object to be frozen, direct heat transfer to the object to be frozen is promoted, Heat removal is promoted, and rapid temperature reduction of the object to be frozen can be promoted.

  FIG. 6 is a schematic cross-sectional view schematically showing an ion wind generator applied to the conventional refrigeration apparatus.

  As shown in FIG. 6, the ion wind generator 6 disposed in the freezer 601 includes a tubular positive electrode 604a, a linear negative electrode 604b inserted in the tubular positive electrode 604a, and these positive electrodes 604a. And a voltage generator 604c for applying a voltage between the negative electrode 604b and the negative electrode 604b. In addition, a voltage of 10,000 V / cm or less, preferably 7000 V / cm or less is applied between the positive electrode 604a and the negative electrode 604b. In the ion wind generator 6 configured in this way, negative ions are attracted to the positive electrode 604a, so that ion wind is generated by being attracted together with non-ionized air.

  Further, for example, Japanese Utility Model Laid-Open Publication No. 60-69977 (Patent Document 2) discloses a configuration of a refrigerator in which an ion wind generator is disposed in a refrigerator and the air in the refrigerator is circulated.

  FIG. 5 is a diagram showing an operation principle of the ion wind generator arranged in the conventional refrigerator.

As shown in FIG. 5, the ion wind generator 516 arranged in the refrigerator 5 is composed of one electrode plate 517 and two other electrodes arranged on opposite sides of the one electrode plate 517. A plate 518 and an ionization line 519 disposed in front of one electrode plate 517 are configured. In the ion wind generator 516 configured as described above, a negative DC voltage of, for example, −6.5 kV is applied to one electrode plate 517, and a negative DC voltage of, for example, −13 kV is applied to the other electrode plate 518. Then, the periphery of the ionization line 519 becomes a plasma with a high potential difference (−13 kV) from the other electrode plate 518, and thus the negative ions travel between the other electrode plates 518 as indicated by arrows in FIG. 5. At this time, wind is generated by pulling the surrounding air due to the viscosity of the air.
JP 2003-88347 A Japanese Utility Model Publication No. 60-69977

  In a cooling device using an ion wind generator as a method of blowing cool air, compared to a cooling device using a fan, dewed water particles and frost do not collide with the fan drive unit, and the fan does not vibrate. However, there is a problem in that the discharge efficiency fluctuates because frost is generated in the discharge portion and the discharge electrode is covered with frost or the like.

  The cause of the fluctuation in the discharge efficiency is thought to be that moisture or frost adheres to the surface of the discharge electrode, weakens the electric field, inhibits the current, and the like. In an extreme case, the discharge is stopped by covering the discharge part with ice, and the ion wind may not be generated at all.

  Accordingly, an object of the present invention is a device for cooling an object by blowing cold air using an ionic wind, and the ionic wind is stably generated without being hindered by the influence of environmental changes due to generation of frost or the like. It is providing the cooling device which can be made to do.

A cooling device according to the present invention includes a heat pump that moves heat from a low temperature portion to a high temperature portion to cool a gas in a predetermined space, a discharge electrode that discharges charged particles, and a charged particle discharged from the discharge electrode. A cooling electrode that blows air in the predetermined space by the movement of charged particles, the discharge electrode being a high temperature of the heat pump While being arranged to be heated by the part, the air cooled by the low temperature part of the heat pump is sent by blowing air by movement of charged particles .

  Since it is configured in this way, the discharge electrode is heated by the high temperature portion of the heat pump, so that no condensation or icing occurs on the surface of the discharge electrode. For this reason, ion wind can be generated stably and it becomes possible to cool a target object stably by ventilation of the cool air by this ion wind. In addition, since the discharge electrode is heated using a heat pump, the number of heating parts can be reduced as compared with the case where a heater or the like is used, so that the cost can be reduced. Furthermore, since the cooling function of the heat pump can be used for cooling the gas in the predetermined space, it is possible to save energy.

  It is preferable that the cooling device of the present invention further includes a heat radiating portion for releasing a part of the heat moved to the high temperature portion of the heat pump to a region separated from the predetermined space by the wall.

  By configuring in this way, the discharge electrode is heated by the high-temperature portion of the heat pump, and part of the heat of the high-temperature portion is released by the heat radiating portion to a region separated from the predetermined space by the wall. The temperature of the surrounding gas can be lowered.

  Moreover, it is preferable that the cooling device of the present invention further includes a flow path for moving gas and charged particles emitted from the discharge electrode from the discharge electrode toward the collection electrode in a predetermined space.

  By comprising in this way, cold air can be effectively blown toward cooling object using ion wind.

  Furthermore, the cooling device of the present invention further includes a container that accommodates a predetermined space, the discharge electrode and the collection electrode are disposed in the container, and the object disposed in the container is cooled by the heat pump and the above-described air blowing. It is preferable.

  By comprising in this way, since the gas in a container can be cooled continuously and cooling temperature can be lowered | hung, the cooling device suitable for food preservation | save etc. is realizable.

  In the cooling device according to the present invention, the heat pump includes first and second heat pumps, and the gas in the predetermined space is cooled by the low temperature portions of the first and second heat pumps and moved to the high temperature portion of the first heat pump. Is discharged to a region separated from the predetermined space by the wall, and the discharge electrode is arranged to be heated by the high temperature portion of the second heat pump, and from the gas in the predetermined space, the low temperature portion of the first and second heat pumps It is preferable that the amount of heat transferred to is larger than the amount of heat transferred to the discharge electrode from the high temperature portion of the second heat pump.

  By comprising in this way, since the cooling capacity of the 1st and 2nd heat pump is larger than the heating capacity of the discharge electrode by a 2nd heat pump, the target gas can be cooled stably. Further, since the first heat pump and the second heat pump can be driven independently, the driving conditions according to the environment can be optimized, and the discharge electrode is heated without using wasted power. Therefore, simplification of the apparatus and reduction in power consumption can be realized by not using a heater.

  As described above, according to the present invention, in the cooling using the ionic wind, the discharge can be stably performed in the ionic wind generation unit without being disturbed by environmental factors that destabilize the discharge such as icing or condensation. Thus, the ion wind can be stably generated, and the object can be stably cooled by the blowing of the cool air by the ion wind. Moreover, since the cooling function of the heat pump can be used for cooling the gas in a predetermined space, energy saving can be achieved.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIG.

  FIG. 1 is a cross-sectional view schematically showing an embodiment of a cooling device using ion blowing when a Peltier element is used as a heat pump.

  As shown in FIG. 1, the cooling device 1 according to the present embodiment includes a Peltier element 101 as a heat pump, a discharge needle 102 as a discharge electrode, and a mesh electrode 103 as a collection electrode. The Peltier element 101 has a kind of heat pump function for transferring heat from the low temperature portion 101a to the high temperature portion 101b in order to cool the gas in the predetermined space 106 surrounded by the wind tunnel 107, for example, air. When current is supplied from the Peltier element power source 101c to the junction between the low temperature portion 101a and the high temperature portion 101b, heat is transferred from the low temperature portion 101a including one metal to the high temperature portion 101b including the other metal. When a high voltage is applied between the discharge needle 102 and the mesh electrode 103 from the discharge high-voltage power supply 104, the discharge needle 102 releases charged particles into a predetermined space surrounded by the wind tunnel 107. The mesh electrode 103 disposed so as to face the discharge needle 102 collects charged particles emitted from the discharge needle 102. The discharge needle 102 is fixed on a mounting base 105 having insulating properties and thermal conductivity. The high temperature portion 101b of the Peltier element 101 is fixed to the mounting base 105 so as to be in contact therewith. In this way, the discharge needle 102 is arranged to be heated by the high temperature portion 101 b of the Peltier element 101 via the mounting base 105.

  Specifically, as an example, a mesh electrode 103 is disposed on one end side of a wind tunnel 107 having a diameter of 2 cm, and a discharge needle 102 is disposed at a position 2 cm away from the mesh electrode 102. The discharge needle 102 is attached so as to be in contact with one end face of the attachment base 105, and the high temperature portion 101 b of the Peltier element 101 is attached so as to be in contact with the other end face of the attachment base 105. A Peltier element power source 101c is connected to the low temperature portion 101a and the high temperature portion 101b of the Peltier element 101, and a discharge high voltage power source 104 is connected to the discharge needle 102 as the positive electrode and the mesh electrode 103 as the negative electrode.

  In the cooling device 1 configured as described above, a voltage of about 6 kV is supplied from the discharge high-voltage power supply 104 between the discharge needle 102 as the ion wind generating means and the mesh electrode 103. Thereby, corona discharge is generated in the sharp discharge needle 102. The charged particles generated from the discharge needles 102 move in the air toward the mesh electrode 103 that functions as a collecting electrode. Along with the movement of the charged particles, the ion wind is sent in the direction of the arrow P within a predetermined space surrounded by the wind tunnel 107, and reaches the position of the object to be cooled 108 separately installed. Thus, in the cooling device 1 of the present invention, the fan is not used as the air blowing means, and the ion wind generating means is used. Therefore, no noise is generated in the drive source for causing air blowing, and the apparatus is quiet.

As an example, the mounting base 105 is made of a thin film having a cross-sectional area of 2 cm ² and a thickness of 1 mm made of thermally conductive and insulating ceramics. The discharge needle 102 is fixed to one surface of the thin film so as to be in contact therewith, and the high temperature portion 101b of the Peltier element 101 is fixed to the other surface on the opposite side. When a current is supplied from the Peltier element power source 101c to the junction between the low temperature portion 101a and the high temperature portion 101b, heat is transferred from the low temperature portion 101a to the high temperature portion 101b. Thereby, since the low temperature part 101a of the Peltier device 101 is cooled, ambient air is cooled. This cold air is sent in the direction of arrow P in a predetermined space surrounded by the wind tunnel 107 by the above-described ion wind, reaches the position of the object 108 to be cooled separately, and then goes outside the wind tunnel 107. Released.

  As an example, the Peltier element 101 has a square surface with a side of 1 cm and a thickness of 3.8 mm. A voltage of 12V is applied from the Peltier element power supply 101c to the junction between the low temperature portion 101a and the high temperature portion 101b so that a current of 0.1 A flows. The amount of heat absorbed by the Peltier element 101 is 1 W. Due to the Peltier effect of the semiconductor element provided inside the Peltier element 101, when a current flows through a plate-shaped semiconductor element having a joint of two types of metal, the amount of heat absorbed from the low temperature portion 101a forming one surface is It can discharge | release from the high temperature part 101b which forms the other surface. The discharge needle 102 is fixed to the high temperature portion 101b through a thermally conductive mounting base 105. Since it is configured in this manner, the discharge needle 102 is heated by the high temperature portion 101b, so that no condensation or icing occurs on the surface of the discharge needle 102. For this reason, ion wind can be generated stably and it becomes possible to cool a target object stably by ventilation of the cool air by this ion wind.

  Specifically, as an example, since the high temperature portion 101b of the Peltier element 101 is in contact with the discharge needle 102, 1.2 W (applied voltage of 12 V and current of 0.1 A) is consumed by the Peltier element 101. And a heat quantity of 2.2 W in total, which is an endothermic quantity, is applied, so that freezing and condensation are unlikely to occur, and stable air blowing and cooling are possible.

  Moreover, the cooling device 1 of this invention can be installed in a refrigerator. In that case, the air which became low temperature in the cooling part provided separately can be ventilated to a target object, and favorable cooling can be performed.

  Furthermore, in the cooling device 1 according to the present invention, heat is taken away from the surrounding air by the endothermic action of the low temperature portion 101a of the Peltier element 101, so that the surrounding air is cooled. For this reason, in the air blown in the direction of the arrow P from this apparatus, the temperature rise by the discharge needle 102 being heated by the high temperature portion 101b is suppressed, and effective cooling is performed even at the position of the object to be cooled 108. Is possible. Compared to the case where the discharge electrode is simply heated using a heater, the cooling effect is increased, and the total heat generation amount can be suppressed to 1.2 W.

  Furthermore, when the cooling device 1 of the present embodiment was continuously operated indoors, the wind speed discharged from the wind tunnel 107 to the outside was 2 m / sec. In addition, since the discharge needle 102 is heated by the Peltier element 101, the temperature thereof is maintained at about 50 ° C., so there is no condensation on the surface of the discharge needle 102, and the ion wind generating means is stably driven for a long time. It was confirmed that it was possible to do.

  In the present embodiment, the example in which the cooling device 1 is installed in the refrigerator has been described above. However, the usage mode of the cooling device 1 is not limited to this, and the cooling device 1 is disposed in a general open space. May be.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG.

  FIG. 2 is a cross-sectional view schematically showing another embodiment of a cooling device using ion blowing when a Peltier element is used as a heat pump. The second embodiment is a partial modification of the first embodiment.

  In the present embodiment, differences from the first embodiment will be described.

  As shown in FIG. 2, the cooling device 2 includes a heat dissipating unit 109 that releases heat of the high temperature portion 101 b of the Peltier element 101 to the outside. The heat dissipating part 109 is made of a metal mainly composed of copper. The heat insulation part 110 is arrange | positioned so that a part of thermal radiation part 109 located in the wind tunnel 107 may be covered. Since the heat dissipating part 109 is in contact with the high temperature portion 101 b of the Peltier element 101, a part of the heat generated in the Peltier element 101 can be released to the outside of the wind tunnel 107. Other configurations of the cooling device 2 are the same as those of the cooling device 1 shown in FIG.

  In the cooling device 2, a part of the heat generated in the Peltier element 101 as a heat pump is discharged out of the wind tunnel 107, and the remaining heat is used for heating the discharge needle 102. On the other hand, the air located around the low temperature portion 101a of the Peltier element 101 is cooled, and this cold air is blown together with the ion wind sent in the direction of arrow P.

  With this configuration, a part of the heat generated by the action of the Peltier element 101 heats the discharge needle 102, and a part of the other heat is released outside the wind tunnel 107, so that the cooled air Can be effectively blown by ion wind, and the temperature rise of the air can be suppressed as compared with heating of the electrode using a heater. In other words, the discharge needle 102 is heated by the high temperature portion 101b of the Peltier element 101, and a part of the heat of the high temperature portion 101b is released to the region separated from the predetermined space 106 by the heat radiating portion 109, thereby cooling The temperature of the surrounding gas can be lowered. Therefore, the surface of the discharge needle 102 is not condensed or frozen, and the cooled wind can be efficiently discharged together with the ion wind into the target space.

  When the cooling device 2 of the present embodiment was continuously operated in a refrigerator having a temperature of −10 ° C., the wind speed discharged from the wind tunnel 107 to the outside was 2 m / sec. Further, the discharge needle 102 is heated by the Peltier element 101 so that the temperature is maintained at about 5 ° C., there is no condensation on the surface of the discharge needle 102, and the ion wind generating means is driven stably for a long time. Is confirmed to be possible.

  Moreover, the temperature of the air blown becomes -12 degreeC, and compared with temperature -10 degreeC in a refrigerator, the further cooled air can be ventilated by ion wind, and it is more suitable for cooling of the object made into object. It was confirmed. In other words, if the discharge electrode is simply heated with a heat pump, the surrounding air is heated and is not suitable for cooling, but by providing a mechanism for releasing a part of the heat of the heat pump to the outside, the cooling effect of the object can be improved. Can be bigger.

  In the configuration of the cooling devices 1 and 2 of the first and second embodiments, the electric drive unit is only operated by applying two voltage / current applications for discharge and Peltier elements, There is no need to perform complicated drive control like a motor.

  Further, the cooling devices 1 and 2 according to the first and second embodiments move air and charged particles emitted from the discharge needle 102 from the discharge needle 102 toward the mesh electrode 103 in a predetermined space. By providing the wind tunnel 107 as the flow path, it is possible to effectively blow cool air toward the object to be cooled using ion wind.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG. Embodiment 3 is an example in which the cooling device of the present invention is used for cooling a refrigerator.

  FIG. 3 is a diagram schematically showing a configuration of a refrigerator as one application example of the cooling device of the present invention.

  As shown in FIG. 3, the cooling device 3 of the present invention includes a container 310 that accommodates a predetermined space 306. A discharge needle 302 as a discharge electrode and a mesh electrode 303 as a collection electrode are disposed in the container 310. The object to be cooled 308 disposed in the container 310 is cooled by the cooling device 3.

  Inside a predetermined container 310, a wind tunnel 307, a Peltier element 301 composed of a low temperature portion 301a and a high temperature portion 301b, a discharge needle 302, a mesh electrode 303, and an insulating heat conductor 309 are arranged. A 5 kV high-voltage power supply (not shown) is connected between the discharge needle 302 and the mesh electrode 303. Further, another power source (not shown) is connected to the Peltier element 301. As an example, a DC voltage of 12V is applied, a current of 5A is passed, and the power consumption is 60W. The inside of the container 310 is cooled by cooling the low temperature portion 301a of the Peltier element 301 and heating the high temperature portion 301b, and the heat absorption amount is 40W.

  The operation of the cooling device 3 configured as described above will be described. First, when the Peltier element 301 is operated, the low temperature portion 301 a is cooled, and at the same time, the high temperature portion 301 b generates heat, and the air cooled with the endothermic amount of 40 W diffuses inside the container 310. Further, the discharge needle 302 is supplied with a heat quantity equivalent to 10 W, which is a part of the heat of the high temperature portion 301b, through the heat conductor 309, so that condensation or icing of the discharge electrode is suppressed.

  As shown in FIG. 3, since the cooling function by the low temperature portion 301a of the Peltier element 301 is used for cooling the inside of the container 310, the inside of the container 310 can be cooled by driving the Peltier element 301, Vegetables as the object to be cooled 308 arranged inside the container 310 can be cooled.

  As shown in FIG. 3, the amount of heat released from the Peltier element 301 to the outside of the container 310 is 90 W. This amount of heat is the sum of the self-heating amount 60 W of the Peltier element 301 and 30 W, which is a value obtained by subtracting 10 W of the amount of heat supplied to the discharge needle 302 from the endothermic amount 40 W from the inside of the container 310.

  Further, in the cooling device 3, a voltage is applied to the discharge needle 302 from a high voltage power source (not shown), and an ion wind is generated in the direction of arrow P toward the mesh electrode 303. For this reason, the air cooled by the low temperature part 301a of the Peltier element 301 can be uniformly supplied from the wind tunnel 307 into the container 310 in the direction of arrow P together with the ion wind. In this embodiment, 30 W obtained by subtracting the heat quantity 10 W used for heating the discharge needle 302 from the heat absorption quantity 40 W of the Peltier element 301 is used for cooling the container 310, and a refrigerator suitable for storing vegetables and the like is provided. Can do. Thus, since the air in the container 310 can be continuously cooled and the cooling temperature can be lowered, a cooling device suitable for food preservation and the like can be realized.

  Furthermore, in this configuration, since the discharge needle 302 is heated by a part of the heat generated from the high temperature portion 301b of the Peltier element 301, the maintenance frequency is small even if the ion wind generating means is driven for a long time. Stable cooling was possible.

  The average wind speed in the container 310 was about 1 cm / second, and the temperature in an equilibrium state with the amount of heat naturally flowing from the container 310 could be kept at −1 ° C.

  Further, under this condition, the temperature of the discharge needle 302 was 3 ° C., and no icing or condensation occurred on the surface of the discharge needle 302, and a stable ionic wind could be blown.

(Embodiment 4)
A fourth embodiment of the present invention will be described with reference to FIG. Embodiment 4 is another example in which the cooling device of the present invention is used for cooling a refrigerator.

  FIG. 4 is a diagram schematically showing a configuration of a refrigerator as another application example of the cooling device of the present invention.

  As shown in FIG. 4, in the cooling device 4 of the present invention, a refrigerator 401 is added to the configuration of the cooling device 3 shown in FIG. The refrigerator 401 is connected to a refrigeration cycle 401c composed of a compressor, an evaporator, a compressor, a refrigerant, and the like, a heat exchange unit 401a that is connected to the refrigeration cycle 401c and is mainly used for cooling as a low temperature portion, and a refrigeration cycle 401c. It is connected and has a heat exchanging part 401b mainly used for heat dissipation as a high temperature part.

  Hereinafter, the refrigerator 401 configured as described above is referred to as a first heat pump, and the Peltier element 301 is referred to as a second heat pump.

  The operation of the cooling device 4 configured as described above will be described. First, the main function of the first heat pump is to cool the inside of the container 310. By the operation of the refrigeration cycle 401c, the heat exchanging unit 401a is cooled with an endothermic amount of 200 W, for example, The air is cooled as well. Further, heat is released from the heat exchanging unit 401b to the outside of the container 310 with a calorific value of 200 W, for example.

  On the other hand, when the second heat pump is operated, the low temperature portion 301a of the Peltier element 301 is cooled with an endothermic amount of 40 W, and at the same time, the high temperature portion 301b of the Peltier element 301 generates heat. The cooled air diffuses inside. Further, a part of the heat of the high temperature portion 301 b is transmitted to the discharge needle 302 with a heat amount of 50 W through the heat conductor 309, and condensation or icing on the surface of the discharge needle 302 is suppressed.

  For example, the heat transfer by the second heat pump is set to 40 W, and the amount of heat generated by driving the second heat pump is 60 W. The amount of heat released from the Peltier element 301 to the outside of the container 310 is 50 W. On the other hand, as a cooling function of the Peltier element 301, an endothermic amount of 40 W is used for cooling the inside of the container 310, so that the inside of the container 310 is cooled by driving the Peltier element 301. Further, a heating value of 50 W is supplied to the discharge needle 302 from the high temperature portion 301 b of the Beltier element 301 through the heat conductor 309 and used to heat the discharge needle 302. Thereby, the inside of the container 310 is heated at 10 W by the second heat pump.

  However, the cooling performance of the first heat pump is 200 W, and the cooling performance of the first heat pump is 40 W. Since the total 240 W of these cooling performances is larger than the heating amount 50 W of the discharge needle 302, the inside of the container 310 can be cooled.

  That is, the cooling device 4 includes first and second heat pumps, and the air in the container 310 is cooled by the low temperature portions 401a and 301a of the first and second heat pumps, and moves to the high temperature portion 401b of the first heat pump. The discharged heat is released to the outside of the vessel 310, and the discharge needle 302 is arranged to be heated by the high temperature portion 301b of the second heat pump, and from the air in the vessel 310, the low temperature portions 401a of the first and second heat pumps, The amount of heat 240W transferred to 301a is preferably larger than the amount of heat 50W transferred to the discharge needle 302 from the high temperature portion 301b of the second heat pump.

  By configuring in this way, the cooling capacity of the first and second heat pumps is larger than the heating capacity of the discharge electrode by the second heat pump, so that the air in the target vessel 310 can be stably cooled. it can. Further, since the first heat pump and the second heat pump can be driven independently, the driving conditions according to the environment can be optimized, and the discharge electrode is heated without using wasted power. Therefore, simplification of the apparatus and reduction in power consumption can be realized by not using a heater.

  In the cooling device 4, a voltage is applied to the discharge needle 302 by a high voltage power source (not shown), and an ion wind is generated in the direction of the arrow P toward the mesh electrode 303. For this reason, the air cooled by the low temperature part 301a of the Peltier element 301 can be supplied uniformly from the wind tunnel 307 into the container 310, and a refrigerator suitable for storing vegetables and the like can be provided.

  Furthermore, in the cooling device 4 of this embodiment, better cooling performance can be obtained as compared with the case where the discharge needle is simply heated with a heater.

  Furthermore, in this configuration, since the discharge needle 302 is heated by a part of the heat generated from the high temperature portion 301b of the Peltier element 301, the maintenance frequency is low and stable even if the ion wind generating means is driven for a long time. Cooling was possible.

  The average wind speed in the container 310 was about 1 cm / second, and the average temperature could be kept at −10 ° C.

  Further, under this condition, the temperature of the discharge needle 302 was 5 ° C., and no icing or condensation occurred on the surface of the discharge needle 302, and stable ionic wind blowing was possible.

  In the present embodiment, a part of the calorific value of the second heat pump is not necessarily released to the outside. In that case, the capability of the first heat pump is large, and a preferable cooling performance can be obtained by satisfying the above requirements of the present invention.

  Further, in the present embodiment, the container 310 does not necessarily have a sealed shape, and a door that can be opened and closed may be used as necessary.

  Furthermore, the application of this embodiment is not limited to containers only, and can be applied to an air conditioner (air conditioner) used for indoor cooling. In that case, the same effect, that is, the indoor cooling effect, can be obtained by arranging the whole or part of the first and second heat pumps in the casing installed indoors. In that case, the heat can be released to the outside by the outdoor unit.

  In the above embodiment of the present invention, application to a refrigerator and an air conditioner has been shown. However, the present invention is not limited to these, and cooling of electronic devices, analysis devices, vehicle bodies, buildings, and other various types. It can be applied to an article having a cooling target.

  In the embodiment of the present invention described above, an example of a needle-type discharge electrode is shown as the discharge electrode. However, the present invention is not limited to this, and the creeping discharge electrode, plate-like or rod-like discharge electrode is used. The same effect can be obtained as long as the electrode has thermal conductivity.

  The embodiment disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above embodiments but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

It is sectional drawing which shows roughly one Embodiment of the cooling device by ion ventilation at the time of using a Peltier device as a heat pump. It is sectional drawing which shows schematically another Embodiment of the cooling device by ion ventilation at the time of using a Peltier device as a heat pump. It is a figure which shows roughly the structure of the refrigerator as one application example of the cooling device of this invention. It is a figure which shows schematically the structure of the refrigerator as another application example of the cooling device of this invention. It is a figure which shows the operation | movement principle of the ion wind generator arrange | positioned in the conventional refrigerator. It is a schematic sectional drawing which shows typically the ion wind generator applied to the conventional freezing apparatus.

Explanation of symbols

  1, 2, 3, 4: Cooling device, 101a, 301a: low temperature part, 101b, 301b: high temperature part, 102, 302: discharge needle, 103, 303: mesh electrode, 107, 307: wind tunnel, 109: heat dissipation part, 310: container, 401: refrigerator, 401a, 401b: heat exchanger.

Claims (5)

A heat pump that moves heat from a low temperature part to a high temperature part to cool the gas in a predetermined space;
A discharge electrode that emits charged particles;
A cooling device for collecting charged particles emitted from the discharge electrode, and for collecting air in the predetermined space by the movement of the charged particles. Because
The discharge electrode is arranged to be heated by a high temperature part of the heat pump, and air cooled by the low temperature part of the heat pump is sent by blowing by movement of the charged particles.
Cooling system.   The cooling device according to claim 1, further comprising a heat radiating portion for releasing a part of the heat transferred to the high temperature portion of the heat pump to a region separated from the predetermined space by a wall.   The cooling according to claim 1 or 2, further comprising a flow path for moving gas and charged particles discharged from the discharge electrode from the discharge electrode toward the collection electrode in the predetermined space. apparatus.   The container further comprising the predetermined space, wherein the discharge electrode and the collecting electrode are disposed in the container, and an object disposed in the container is cooled by the heat pump and the blower. The cooling device according to any one of claims 1 to 3. The heat pump includes first and second heat pumps,
The gas in the predetermined space is cooled by the low temperature part of the first and second heat pumps,
The heat transferred to the high temperature portion of the first heat pump is released to a region separated from the predetermined space by a wall,
The discharge electrode is arranged to be heated by the hot part of the second heat pump;
The amount of heat transferred from the gas in the predetermined space to the low temperature portions of the first and second heat pumps is larger than the amount of heat transferred from the high temperature portion of the second heat pump to the discharge electrode. 5. The cooling device according to any one of 4 to 4.

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