JP2008093532A - Electrostatic atomizer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain efficiently relaxation effects, and bacteria and odor eliminating effects by reducing the number of particulate water decreasing up to the supply when the charged particulate water is produced and supplied to a vehicle interior. <P>SOLUTION: An electrostatic atomizer A is constituted by an electrostatic atomization part 70 applying a high voltage to water to make the charged particulate water, and a channel part 71 guiding the charged particulate water produced in the electrostatic atomization part 70. The channel part 71 is formed in a linear shape, and its inner periphery is formed smoothly. The electrostatic atomizer A is attached to a vehicular air conditioner. An end side of the channel part 71 projects in a driver seat side side vent duct of the air conditioner, and an end side opening 71b of the channel part 71 is positioned in the vicinity of a blast opening of the side vent duct. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electrostatic atomizer that discharges water into charged particles in the air.

  Conventionally, as disclosed in, for example, Patent Document 1, an electrostatic atomizer is known as an apparatus for obtaining charged particulate water having a relaxation effect, a sterilization effect, and a deodorization effect. The electrostatic atomizer includes a tank that stores water, a rod-shaped water absorber that sucks up water in the tank, and an electrode that is disposed near the tip of the water absorber. When a high voltage is applied to the electrode, the tip of the water absorber functions as a substantial electrode, and charges are concentrated on the tip of the water absorber. As a result, the sucked-up water exceeds the surface tension and repeats splitting to form charged particles having a nanometer-size diameter, and is released into the air.

Since the charged particulate water thus obtained is ultrafine, it floats in the air for a long time of about 10 minutes after being released and enters into fibers such as clothes. It becomes easy and the various effects described above can be obtained at a high level.
JP 2005-177678 A

  By the way, in the electrostatic atomizer of patent document 1, since particulate water is electrically charged, when discharging | emitting outside from an electrostatic atomizer, the case etc. which comprise an electrostatic atomizer, etc. It easily adheres to the member and disappears. For this reason, even if a large amount of particulate water is generated by the electrostatic atomizer, the number of particulate water is drastically reduced before it is actually supplied to a predetermined location, and the various useful functions described above are used. There is a possibility that the effect cannot be sufficiently obtained.

  The present invention has been made in view of such a point, and the object of the present invention is to reduce the amount of particulate matter that is reduced before being supplied when charged particulate water is obtained and supplied to a predetermined location. By reducing the number of water, various useful effects can be obtained efficiently.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided an electrostatic atomizing portion for obtaining charged particulate water by applying a voltage to water, and the charged particulate shape obtained by the electrostatic atomizing portion. And a conduit portion for guiding the water, and the inner peripheral surface of the conduit portion has a smooth shape.

  According to this configuration, since the charged particulate water obtained in the electrostatic atomization section is guided by the conduit section, the particulate water does not diffuse before reaching the predetermined location. As a result, the particulate water does not adhere to the members existing around the electrostatic atomizer, and the number of disappearances is reduced. Furthermore, since the inner peripheral surface of the conduit portion has a smooth shape, the air flow in the conduit portion is not greatly disturbed and becomes a smooth flow, and the particulate water rides on the smooth air flow to the conduit portion. It flows. Thereby, particulate water becomes difficult to adhere to the inner peripheral surface of the conduit portion, and the number of disappearances decreases.

  According to the second aspect of the present invention, there is provided an electrostatic atomizing portion that obtains charged particulate water by applying a voltage to water, and a conduit portion that guides the charged particulate water obtained by the electrostatic atomizing portion. And the conduit portion is positioned so that the one end opening portion and the other end opening portion are at least partially overlapped with each other when viewed from the one end opening portion side of the conduit portion.

  According to this configuration, since the charged particulate water obtained in the electrostatic atomization section is guided by the conduit section, the number of disappearances of the particulate water is reduced. Furthermore, since at least a part of the one end opening and the other end opening of the conduit portion overlap each other, a region extending linearly from the one end opening to the other end opening is formed in the conduit portion. It will be. Therefore, for example, the particulate water that has flowed into the conduit portion from the opening at one end flows out through the region extending linearly. Thereby, since it is not necessary to largely bend the flow of particulate water in the conduit portion, it becomes difficult for the particulate water to adhere to the inner peripheral surface of the conduit portion, and the number of disappearances is reduced.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, there is provided a low temperature portion having a temperature lower than the dew point of the surrounding air due to a thermoelectric effect generated when a voltage is applied. A thermoelectric element for obtaining condensed water is provided, and the electrostatic atomizer is configured to apply a voltage to the condensed water obtained by the thermoelectric element.

  According to this configuration, it is possible to obtain particulate water by using water contained in the air.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the outlet side opening of the conduit portion is arranged in an instrument panel that houses the air conditioning device of the vehicle.

  According to this configuration, the charged particulate water discharged from the outlet side opening of the conduit portion can be supplied to the passenger compartment on the conditioned air supplied from the air conditioner.

  According to the first aspect of the present invention, the conduit portion that guides the charged particulate water obtained in the electrostatic atomization portion is provided, and the inner peripheral surface of the conduit portion has a smooth shape. It is possible to reduce the number of particulate water that is reduced by a sufficient amount and supply a sufficient number of particulate water, and to efficiently obtain various useful effects of charged particulate water. it can.

  According to the second aspect of the present invention, a conduit portion for guiding the charged particulate water obtained in the electrostatic atomization portion is provided, and when the conduit portion is viewed from one end opening side, the one end opening and the other end Since the openings are at least partially overlapped with each other, the number of particulate water that decreases before being supplied to a predetermined location is reduced, and various useful effects of charged particulate water can be obtained. It can be obtained efficiently.

  According to the invention of claim 3, since the charged particulate water can be obtained by using the condensed water obtained by the thermoelectric element, a sufficient number of the particulate water can be obtained without replenishing the water. Can be continuously supplied.

  According to the invention of claim 4, by arranging the outlet side opening part of the conduit part in the instrument panel containing the air conditioner of the vehicle, the charged particulate matter discharged from the outlet side opening part of the conduit part is provided. Water can be spread over a wide range of passenger compartments by air conditioning.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 2 is a view of the vehicle air conditioner B to which the electrostatic atomizer A according to the embodiment of the present invention is attached as viewed from the vehicle rear side. As shown in FIG. 1, the air conditioner B is fixed to the vehicle body and the instrument panel P in a state of being accommodated in an instrument panel P provided at the front end of the interior of the automobile. Unless otherwise specified in the following description, “front” and “rear” mean “front in the vehicle front-rear direction” and “rear in the vehicle front-rear direction”, respectively, and “left” and “right” Means “left in the vehicle width direction” and “right in the vehicle width direction”.

  A defrost port 100 for supplying conditioned air to the inner surface of a front window glass (not shown) is formed at the front end of the instrument panel P. Further, on the driver seat side on the right side of the vehicle of the instrument panel P and on the passenger seat side on the left side, a side vent port 101 on the driver seat side and a side on the passenger seat side for supplying conditioned air to the vicinity of the upper body of the passenger Each vent port 101 is provided. Furthermore, two center vent ports 102 for supplying conditioned air to the vicinity of the upper body of the occupant are provided at the center of the instrument panel P on the left and right sides.

  As shown in FIG. 2, the air conditioner B includes a blower unit 2, an air conditioner unit 3, and an air conditioner control device 5 (shown in FIG. 5). As shown in FIG. 1, the blower unit 2 is positioned on the passenger seat side in the instrument panel P, and the air conditioning unit 3 is positioned in a substantially central portion in the left-right direction in the instrument panel P.

  The blower unit 2 includes a resin blowing case 10. As shown in FIG. 4, an internal air inlet 11 that opens to the passenger compartment and an outdoor air inlet 12 that is connected to a duct (not shown) communicating with the outside of the passenger compartment are provided at the upper portion of the blowing case 10. Is formed. An inside / outside air switching damper 13 that selectively opens and closes the inside air introduction port 11 and the outside air introduction port 12 is disposed inside the blowing case 10. As shown in FIG. 2, an inside / outside air switching actuator 14 for operating the inside / outside air switching damper 13 is attached to the upper outer surface of the blowing case 10. The actuator 14 is connected to the air conditioning control device 5 and is operated by a control signal output from the air conditioning control device 5. By operating the inside / outside air switching damper 13 by the actuator 14, the air conditioner B opens the inside air introduction port 11 and closes the outside air introduction port 12, and closes the inside air introduction port 11 and opens the outside air introduction port 12. Switch to open air introduction mode to open.

  As shown in FIG. 2, a centrifugal fan 16 constituting an air conditioning fan is accommodated in the lower half of the air blowing case 10 with the rotation axis directed in the vertical direction. A fan drive motor 17 is disposed below the fan 16. The fan drive motor 17 is connected to the air conditioning control device 5 while being attached to the blower case 10, and is operated by a control signal output from the air conditioning control device 5. The rotational speed of the fan drive motor 17 is set by the air conditioning controller 5. When the fan drive motor 17 rotates, air is introduced into the blower case 10 from the inside air introduction port 11 or the outside air introduction port 12. The introduced air is blown out from the air conditioning unit 3 side in the lower part of the blowing case 10.

  The air conditioning unit 3 includes a resin air conditioning case 20. Although not shown, an inlet is formed in the lower part of the air conditioning case 20 on the side of the blower unit 2, and air from the blower unit 2 is introduced through the inlet. As shown in FIG. 4, a cooling heat exchanger 21 and a heating heat exchanger 22 are accommodated in the air conditioning case 20. The cooling heat exchanger 21 is of a tube and fin type, and is composed of an evaporator that is an element of a refrigeration cycle. In the refrigeration cycle, in addition to the cooling heat exchanger 21, a compressor 23 that compresses the refrigerant, a condenser 24 that cools and condenses the refrigerant discharged from the compressor 23, and promotes gas-liquid separation of the refrigerant. A liquid receiver 25 for reducing the pressure of the refrigerant, and a pressure reducing valve 26 for reducing the pressure of the refrigerant. The compressor 23 is driven by the power of the engine E.

  When the compressor 23 is operated, the decompressed refrigerant flows into the cooling heat exchanger 21, and the surface temperature of the cooling heat exchanger 21 decreases. The surface temperature of the cooling heat exchanger 21 is detected by a temperature detection sensor 28 attached to the surface of the cooling heat exchanger 21 on the downstream side of the air flow. The temperature detection sensor 28 is connected to the air conditioning control device 5.

  The heating heat exchanger 22 is disposed downstream of the cooling heat exchanger 21 in the air flow direction. The heating heat exchanger 22 is a tube-and-fin type heat exchanger, and includes a heater core through which the cooling water of the engine E circulates. A heater pipe 30 communicating with a cooling water passage (not shown) of the engine E is connected to the heating heat exchanger 22. The air conditioning case 20 is provided with a bypass passage 31 that guides the air that has passed through the cooling heat exchanger 21 to the downstream side of the heating heat exchanger 22 without flowing the air to the heating heat exchanger 22. ing.

  Between the cooling heat exchanger 21 and the heating heat exchanger 22 in the air conditioning case 20, an air mix damper 32 that sets the amount of air that passes through the heating heat exchanger 22 is disposed. . As shown in FIG. 2, a temperature control actuator 33 that operates the air mix damper 32 is attached to the outer surface of the air conditioning case 20. The actuator 33 is connected to the air conditioning control device 5 and is actuated by a control signal output from the air conditioning control device 5. By operating the air mix damper 32 by the actuator 33, the amount of air passing through the heating heat exchanger 22 is set among all the air that has passed through the cooling heat exchanger 21. Then, the air that has passed through the heating heat exchanger 22 and the air that has flowed through the other bypass passages 31 are mixed on the downstream side of the heating heat exchanger 22, thereby generating conditioned air. . That is, the temperature of the conditioned air is changed depending on the operating state of the air mix damper 32. The cooling heat exchanger 21, the heating heat exchanger 22, the bypass passage 31, and the air mix damper 32 constitute a temperature adjusting unit of the present invention.

  A vent outlet (not shown) is formed on the rear side of the vehicle at the upper part of the air conditioning case 20, and a center vent duct 35 communicating with the center vent 102 of the instrument panel P is formed in the vent outlet. The driver seat side side vent duct 36 communicating with the driver seat side vent vent 101 and the passenger seat side vent duct 36 communicating with the passenger seat side vent vent 101 are connected. As shown in FIG. 3, the front side of these driver side and passenger side side vent ducts 36, 36 are bent toward the rear side, and an air outlet 36a is formed at the end thereof. Further, a defrost outlet (not shown) is formed on the front side of the air conditioning case 20 on the front side of the vehicle, and a defrost duct 38 communicating with the defrost port 100 is connected to the defrost outlet. A foot outlet (not shown) is formed on both sides of the air conditioning case 20, and a foot duct 39 extending to the vicinity of the feet of the driver's occupant and the feet of the passenger's occupant is connected to each of the foot outlets. Has been. The center vent duct 35, the driver seat side and passenger seat side vent ducts 36, 36, the defrost duct 38 and the foot duct 39 are made of resin.

  As shown in FIG. 4, a vent damper 40 for opening and closing the upstream end opening is disposed in the vicinity of the upstream end portions of the center vent duct 35 and the side vent ducts 36 and 36 in the air conditioning case 20. A defrost damper 41 for opening and closing the upstream end opening is disposed near the upstream end of the defrost duct 38 in the air conditioning case 20, and the upstream end opening is disposed near the upstream end of the foot duct 39. A foot damper 42 that opens and closes is disposed.

  As shown in FIG. 2, a blow-out mode switching actuator 43 that operates the vent damper 40, the defrost damper 41, and the foot damper 42 is disposed on the outer surface of the air conditioning case 20. The blowing mode switching actuator 43 is connected to the air conditioning control device 5 and is operated by a control signal output from the air conditioning control device 5. The air conditioning control device 5 is connected to an occupant operation dial 104 provided on the instrument panel P.

  When the vent damper 40 is fully opened by the blowing mode switching actuator 43 and the defrost damper 41 and the foot damper 42 are closed, the air-conditioning air is vented from the vent ports 101 and 102. Further, when the vent damper 40 and the foot damper 42 are half opened and the defrost damper 41 is closed by the actuator 43, the bi-level mode is set. Further, when the defrost damper 41 is opened by the actuator 43 and the vent damper 40 and the foot damper 42 are closed, the defrost mode is set. Note that the blowing mode can be switched to the differential foot mode or the foot mode in addition to the blowing mode described above by the operation of the actuator 43. The damper that distributes the conditioned air according to the present invention to each outlet and switches the blowing mode includes the vent damper 40, the defrost damper 41, and the foot damper 42.

  As shown in FIG. 5, the air conditioning control device 5 is connected to an inside air temperature sensor 66 that detects the temperature in the passenger compartment. The air conditioning control device 5 determines the target temperature of the conditioned air based on the input signals from the sensor 66 and the dial 104 and controls the temperature adjusting actuator 33. Further, when the air conditioning control device 5 is in the automatic mode, the applied voltage to the fan drive motor 17 is changed so that the air conditioning air volume becomes an optimal air volume commensurate with the target temperature. The blowing mode switching actuator 43 is controlled so as to be. Note that the blowing mode can be switched to an arbitrary blowing mode by the occupant using the dial 104.

  As shown in FIGS. 2 and 3, the electrostatic atomizer A is disposed in the vicinity of the air outlet 36 a of the driver side side vent duct 36, and is provided with brackets provided on the side vent duct 36 and the instrument panel P ( (Not shown). This electrostatic atomizer A is configured to condense and collect moisture contained in air, and obtain and discharge charged particulate water from the collected water.

  As shown in FIG. 6, the electrostatic atomizer A includes an electrostatic atomizer 70 that generates charged particulate water, and a conduit that guides the particulate water generated by the electrostatic atomizer 70. A unit 71 and a blower 75 are provided. As shown in FIG. 7, the electrostatic atomization unit 70 includes a case 72, a condensed water generation unit 73 accommodated in the case 72, a discharge unit 74, and an electrostatic atomization control device 76 as a control unit. It has. The case 72 is formed by molding a resin material into a rectangular box shape. The interior of the case 72 accommodates the first space R <b> 1 that houses the electrostatic atomization control device 76, the dew condensation water generation unit 73, the discharge unit 74, and the blower 75, by the partition wall 72 a that is disposed at a substantially central portion. It is partitioned off from the second space R2. A substantially circular discharge hole 72b is formed through the end wall portion of the case 72 on the second space R2 side in the vicinity of the substantially central portion. The peripheral edge of the discharge hole 72b protrudes outward from the case 72 to form an annular ridge. A plurality of ventilation holes 72c each having an elongated slit shape are formed on both side walls of the case 72 on the second space R2 side.

  The dew condensation water generating unit 73 includes a Peltier element 78 as a thermoelectric element having a thermoelectric effect, and a heat radiation fin 79 made of a metal material such as an aluminum alloy. As is well known, the Peltier element 78 is an element capable of forming a high temperature part 78a and a low temperature part 78b by applying a voltage. The high temperature portion 78 a of the Peltier element 78 is in contact with the heat radiation fin 79, and the heat of the high temperature portion 78 a is radiated by the heat radiation fin 79. As shown in FIGS. 6 and 7, the condensed water generation unit 73 is disposed close to the partition wall 72a of the second space R2.

  The discharge part 74 includes a cylindrical member 80 obtained by molding a resin material that does not conduct electricity into a substantially cylindrical shape, a discharge electrode 81, and a counter electrode 82. The cylindrical member 80 is sized to surround the periphery of the Peltier element 78, and a flange fixed to the heat radiation fin 79 is formed at one end in the center line direction. A holding plate 80 a that holds the discharge electrode 81 is formed on the inner peripheral surface of the cylindrical member 80. Further, a plurality of slit-shaped through holes 80b extending in the circumferential direction are formed in the circumferential wall portion of the cylindrical member 80 so as to be separated from each other in the circumferential direction in the middle portion in the center line direction.

  The counter electrode 82 is formed by forming a conductive metal material into a ring shape having substantially the same diameter as the cylindrical member 80, and is fixed to the end of the cylindrical member 80 opposite to the flange. A lead wire (not shown) extends from the counter electrode 82 and is grounded.

  The discharge electrode 81 is formed by forming a conductive metal material into a rod shape, and is disposed in the cylindrical member 80. The holding member 80a is disposed in a state where the base end portion penetrates the holding plate portion 80a. It is fixed to. The base end portion of the discharge electrode 81 is provided with a disk portion having a larger diameter than the tip end side, and the disk portion has a plate-like insulating material 83 interposed on the low temperature portion 78b side of the Peltier element 78. It is arranged in the state of letting. The insulating material 83 has heat conductivity, and the discharge electrode 81 is cooled by the low temperature portion 78 b of the Peltier element 78. Further, the tip end portion of the discharge electrode 81 is tapered. In the discharge electrode 81, a portion protruding from the holding plate portion 80 a toward the counter electrode 82 is covered with a heat insulating material 84 except for the tip portion. In addition, a lead wire 85 is connected to the discharge electrode 81. As shown in FIGS. 6 and 7, the discharge part 74 is disposed on the discharge hole 72b side of the second space R2, and in this state, the opening part on the counter electrode 82 side of the cylindrical member 80 is connected to the discharge hole 72b. It is almost coincident.

  Although not shown in detail, the blower 75 includes a rectangular frame, a motor fixed to the frame in a state of being arranged in the center of the frame, and an axial fan connected to the output shaft of the motor. It has a known structure used for various cooling parts. As shown in FIGS. 6 and 7, the blower 75 is disposed between the heat radiation fin 79 and the ventilation hole 72 c of the case 72 in the second space R <b> 2 of the case 72. The fan of the blower 75 rotates in the direction of sucking air from the vent hole 72c, whereby a part of the sucked air passes between the heat dissipating fins 79 as shown by arrows in FIG. The air is discharged from the air vent 72c on the opposite side, and the remainder flows through the case 72 toward the discharge hole 72b, flows into the cylindrical member 80 from the through hole 80b of the cylindrical member 80, and is discharged from the discharge hole 72b. It has become.

  As shown in FIG. 6, the conduit portion 71 is formed by molding polyvinyl chloride into a straight circular tube. This conduit portion 71 has the same cross-sectional shape with no change in inner diameter from the proximal end opening 71a connected to the discharge hole 72b to the distal end opening 71b constituting the outlet side opening, and has the same cross-sectional shape. The surface has a smooth shape with no irregularities. When the conduit portion 71 is viewed from the distal end opening portion 71b side, the proximal end opening portion 71a and the distal end opening portion 71b in the conduit portion 71 overlap. Moreover, the conduit | pipe part 71 is attached to this case 72 in the state which inserted the protrusion part of the case 72 inside the base end opening part 71a, as shown in FIG. In addition, you may make the internal diameter of the conduit | pipe part 71 small, so that it goes to the front end side. In this case, it is preferable that the cross-sectional shape of the conduit portion 71 is a similar shape over both ends in the center line direction.

  As shown in FIG. 9, the electrostatic atomization control device 76 includes a CPU 88, a Peltier element power supply unit 89, and a high voltage generation unit 90. The Peltier element power supply unit 89 and the high voltage generation unit 90 include It is connected to the CPU 88 and is controlled by the CPU 88. The motor of the blower 75 is connected to the CPU 88, the Peltier element 78 is connected to the Peltier element power supply unit 89, and the lead wire 85 of the discharge electrode 81 is connected to the high voltage generator 90. The electrostatic atomization control device 76 is connected to an ON / OFF switch 91 that switches the electrostatic atomizer 70 and the blower 75 between an operating state and a non-operating state. The ON / OFF switch 91 is a changeover switch according to the present invention and constitutes an electrostatic atomizer A. Further, the electrostatic atomization control device 76 and the air conditioning control device 5 are connected by a signal line, and the electrostatic atomization control device 76 determines whether or not the fan drive motor 17 of the air conditioning device B is operating. It is input as an electrical signal.

  The Beltier element power supply unit 89 is configured to apply a voltage to the Peltier element 78. The output voltage from the Peltier element power supply unit 89 changes, and the output voltage of the Peltier element power supply unit 89 is such that the temperature of the low temperature part 78b of the Peltier element 78 is lower than the dew point of the surrounding air. Is set. The high voltage generator 90 is configured to generate a voltage of about 6000 V and apply it to the discharge electrode 81, for example.

  The electrostatic atomization control device 76 does not apply a voltage to the motor of the blower 75, the Peltier element 78, and the discharge electrode 81 when the ON / OFF switch 91 is OFF, while when it is ON. The motor, the Peltier element 78 and the discharge electrode 81 are configured to apply a voltage. Further, when the electrostatic atomization control device 76 detects that the fan drive motor 17 of the air conditioner B is operating, the motor, the Peltier element 78 and the discharge electrode 81 regardless of the state of the ON / OFF switch 91. A voltage is applied to the. In addition, the code | symbol 92 shown in FIG. 6 is wiring.

  As shown in FIGS. 2 and 3, the distal end side of the conduit portion 71 of the electrostatic atomizer A projects through the front wall portion of the driver side side vent duct 36 and protrudes into the duct 36. The front end opening 71 b is located in the vicinity of the air outlet 36 a of the side vent duct 36. As shown in FIG. 2, when the side vent duct 36 is viewed from the air outlet 36a side, the tip opening 71b overlaps with the air outlet 36a.

  Here, based on FIG.10 and FIG.11, the result of having measured the change of the number of the particulate water discharged | emitted from the electrostatic atomizer A is demonstrated. First, in the graph of the measurement result shown in FIG. 10, the horizontal axis represents elapsed time, the vertical axis represents the number of particulate water discharged, and these relationships are the presence / absence of the conduit portion 71 and the length of the conduit portion 71. It shows how it changes depending on the situation. As the measurement conditions, the electrostatic atomizer A is placed in a room of a predetermined size assuming a passenger compartment and is continuously operated. Further, a counter capable of counting nanometer-size particulate water ( The counter is arranged 10 cm away from the distal end opening 71b of the conduit portion 71 in the center line direction of the conduit portion 71 and is measured every predetermined time. “None” in the figure indicates a state in which the conduit portion 71 is removed from the case 72, and “10 cm”, “30 cm”, and “50 cm” indicate the length of the conduit portion 71, respectively. .

  As is apparent from this measurement result, when there is no conduit portion 71, the total number of particulate water is smaller than when the conduit portion 71 is present. This is because if there is no conduit portion 71, the particulate water discharged from the discharge hole 72b of the case 72 is scattered around and attached to the case 72 and disappears before reaching the counter. Further, it can be seen that when the conduit portion 71 is mounted, the number of the particulate water increases as the length of the conduit portion 71 is shorter. This is because when the conduit portion 71 is long, the number of particulate water that adheres to the inner peripheral surface of the conduit portion 71 and disappears while flowing through the conduit portion 71 increases.

  Further, the graph shown in FIG. 11 shows how the number of discharged particulate water changes depending on the shape of the conduit portion 71, and the measurement conditions and the like are the same as described above. “Straight” in the figure extends straight like the conduit portion 71 of the present embodiment, and “90 ° 1 bending” means that only one portion bent at a right angle is provided. The “90 ° 2 bending” is provided with two portions bent at a right angle, and the “90 ° 3 bending” is provided with three portions bent at a right angle. The inner peripheral surfaces of these conduit portions 71 are smooth. As is apparent from the measurement results, when the inner peripheral surface shape of the conduit portion 71 is a smooth shape, the number of particulate water does not change much depending on the presence / absence of the bent portion and the number of bent portions.

  Next, operations of the air conditioner B and the electrostatic atomizer A configured as described above will be described. When in the automatic mode, the air conditioning control device 5 determines the target temperature of the conditioned air based on the set temperature by the occupant, the temperature state of the passenger compartment, etc., and activates the temperature adjustment actuator 33, and also activates the fan drive motor 17. The air-conditioning wind blowing mode is set, and the blowing mode switching actuator 43 is operated.

  Further, when the ON / OFF switch 91 of the electrostatic atomizer A is turned on, the electrostatic atomization controller 76 applies a voltage to the Peltier element 78, the electrostatic atomizer 70, and the blower 75. The voltage applied to the Peltier element 78 is set so that the low temperature part 78b has a temperature lower than the dew point of the surrounding air, and this value is a value obtained in advance by simulation or the like.

  When a voltage is applied to the Peltier element 78, the temperature of the low temperature part 78b decreases and the temperature of the high temperature part 78a increases. The increased heat of the high temperature part 78 a is radiated by the radiation fins 79. At this time, since the air sucked into the case 72 by the blower 75 passes between the fins 79, the high temperature part 78a can be sufficiently cooled, and the temperature of the low temperature part 78b is below the dew point of the air. Will definitely go down. When the discharge electrode 81 is cooled by the low temperature part 78b, the water contained in the air is condensed at the front end part not surrounded by the heat insulating material, and condensed water is obtained. The condensed water is split (Rayleigh split) at the tip of the discharge electrode 81 to which a voltage is applied, and becomes charged particulate water having a particle size of nanometer (nm). Further, negative ions are generated between the discharge electrode 81 and the counter electrode 82 simultaneously with the splitting of the condensed water. The particulate water obtained as described above flows into the conduit portion 71 from the tubular member 80 through the discharge hole 72b by the wind of the blower 75, and the inside of the driver side side vent duct 36 by the conduit portion 71. Led to. At this time, if the blowing mode of the air conditioner B is set to the vent mode or the bi-level mode, the particulate water that has flowed into the driver side side vent duct 36 rides on the conditioned air and blows out the air outlet 36a and the side vent. It blows out toward the vicinity of the upper half of the driver's seat occupant through the mouth 101. Since this particulate water has a long floating time, it reaches the rear part of the passenger compartment due to the flow of the conditioned air, and eventually reaches the entire passenger compartment.

  In addition, even when the blowing mode of the air conditioner B is the blowing mode in which the conditioned air is not supplied from the vent ducts 35 and 36, the blower 75 of the electrostatic atomizer A is operating. The particulate water can be supplied from the driver side side vent duct 36 to the vicinity of the occupant by the wind that is sent and discharged from the discharge hole 72b through the tubular member 80.

  In addition, when the fan drive motor 17 of the air conditioner B is operating, the electrostatic atomization control device 76 includes the Peltier element 78, even if the ON / OFF switch 91 of the electrostatic atomizer A is turned off. In order to apply a voltage to the electrostatic atomizer 70 and the blower 75, it is possible to spread the particulate water over the entire passenger compartment by the flow of conditioned air.

  As described above, since the particulate water obtained by the electrostatic atomizer 70 is guided to the inside of the driver side side vent duct 36 by the conduit 71, the particulate water is supplied to the driver side side vent. It will not diffuse before reaching the inside of the duct 36. Thereby, particulate water does not adhere to the vent duct 36 etc. which exist around the electrostatic atomizer A, and can reduce the number of disappearances. Furthermore, since the inner peripheral surface of the conduit portion 71 has a smooth shape, the flow of air in the conduit portion 71 is not greatly disturbed and becomes a smooth flow, and the particulate water rides on the smooth air flow. It flows through the conduit portion 71. Further, since the proximal end opening 71a of the conduit portion 71 viewed along the center line overlaps with the distal end opening portion 71b, the particulate water that has flowed into the conduit portion 71 flows in a substantially straight line and flows into the distal end opening. Derived from the unit 71b. Thereby, the flow of particulate water is not greatly bent in the conduit 71. By these, particulate water becomes difficult to adhere to the inner peripheral surface of the conduit portion 71, the number of disappearances is reduced, and a sufficient number of particulate water can be supplied to the passenger compartment. Various useful effects of water can be obtained efficiently.

  In addition, since water contained in the air is condensed by the Peltier element 78 and charged particulate water is generated using the condensed water, a sufficient number can be obtained without replenishing water. The particulate water can be continuously supplied.

  Moreover, in the blowing mode in which the conditioned air is not supplied from the vent duct 36, the particulate water obtained by the electrostatic atomizer 790 is placed on the wind of the blower 75 and effectively supplied from the vent duct 36 to the vicinity of the occupant. be able to. Thereby, the relaxation effect can be acquired irrespective of the blowing mode of the air conditioner B.

  Moreover, in this embodiment, it is made to install in the instrument panel P by opening the front-end | tip opening part 71b of the conduit | pipe part 71 in the vent duct 36 of the air conditioner B. FIG. As a result, the charged particulate water can be spread widely in the passenger compartment on the conditioned air blown from the air conditioner B. Further, although not shown, the distal end opening 71b of the conduit 71 may be opened on the surface of the instrument panel P and positioned near the outlet 36a of the vent duct 36. Thereby, the charged particulate water can be supplied quickly and uniformly into the passenger compartment by the conditioned air blown from the outlet 36a of the vent duct 36.

  Moreover, in this embodiment, although the conduit | pipe part 71 is comprised with the polyvinyl chloride, you may comprise using another resin material.

  In this embodiment, the conduit portion 71 is separated from the case 72, but the conduit portion 71 may be integrally formed with the case 72.

  For example, a silencer 95 may be provided on the proximal end side of the conduit portion 71 as in Modification 1 shown in FIG. The silencer 95 is formed in a thick cylindrical shape, and includes an inner cylinder member 96 having substantially the same diameter as the conduit portion 71, an outer cylinder member 97 larger than the inner cylinder member 96, an inner cylinder member 96 and an outer cylinder member 96. And a sound absorbing material 98 provided between the cylindrical member 97 and the cylindrical member 97. A large number of through holes 96 a are formed in the inner cylinder member 96. Thereby, since the sound at the time of discharge of the electrostatic atomizer A and the sound of the blower 75 are absorbed by the sound absorbing material 98, the magnitude of the sound leaking from the conduit portion 71 can be reduced, and the silence can be improved.

  Moreover, it is good also considering the conduit part 71 as a bellows shape. In this case, since the conduit portion 71 is easily bent, the degree of freedom in the layout of the electrostatic atomizer A is improved, while the inner peripheral surface of the conduit portion 71 has an uneven shape. The flow is disturbed, and particulate water tends to adhere to the inner peripheral surface of the conduit portion 71 and disappear. As apparent from FIG. 13 showing the result of measuring the change in the number of particulate water in the case of using the bellows type conduit portion 71, the conduit portion 71 having a bellows shape and the center line extending straight is bent. The number of particulate water is larger than that of the conduit portion 71 having a portion. This measurement condition is the same as the measurement result shown in FIG.

  That is, when the turbulent flow is likely to occur inside like the bellows-shaped conduit portion 71, the number of the particulate water increases as the conduit portion 71 is close to the shape extending straight. Therefore, when the bellows-shaped conduit portion 71 is used, when the conduit portion 71 is bent as in Modification 2 shown in FIG. 14, when the conduit portion 71 is viewed from the distal end opening portion 71b side ((b)). It is preferable that the bend is set so that the distal end opening 71b and the proximal end opening 71a in the conduit portion 71 at least partially overlap each other. As a result, a region (region indicated by slanting lines in the drawing) extending linearly from the proximal end opening 71a to the distal end opening 71b is formed in the conduit portion 71. Water can be made to flow linearly in the conduit portion 71, and the amount of particulate water disappearing can be reduced.

  Moreover, although the said embodiment demonstrated the case where the electrostatic atomizer A was mounted | worn with the vehicle air conditioner B, it is not restricted to this, The electrostatic atomizer A is for residences and stores other than vehicles. It can also be installed in an air conditioner. It is also possible to attach the electrostatic atomizer A to an air cleaner or the like. Furthermore, you may make it install the electrostatic atomizer A in the arbitrary places of the instrument panel P independently. Also in this case, the charged particulate water can be spread over the entire passenger compartment by the operation of the blower 75.

  Moreover, in the said embodiment, although the front end side of the conduit | pipe part 71 of the electrostatic atomizer A was protruded in the side vent duct 36, it is not restricted to this, The front end side of the conduit | pipe part 71 is made into the center vent duct 35. Alternatively, it may be protruded into the defrost duct 38 and the foot duct 39. Furthermore, the front end side of the conduit portion 71 may be disposed in the vicinity of the air outlet 36 a outside the ducts 35, 36, 38, 39 without protruding into the ducts 35, 36, 38, 39.

  As described above, the electrostatic atomizer according to the present invention is suitable for being mounted in a vehicle compartment.

It is a perspective view of the instrument panel of the vehicle by which the electrostatic atomizer which concerns on embodiment of this invention is mounted. It is the figure which looked at the air-conditioner with which the electrostatic atomizer was mounted | worn from the vehicle rear side. It is a top view of the air conditioner with which the electrostatic atomizer was mounted | worn. It is a figure explaining the schematic structure of an air conditioner. It is a block diagram of an air-conditioning control apparatus. It is a perspective view of an electrostatic atomizer. It is sectional drawing of an electrostatic atomizer. It is sectional drawing of a dew condensation water production | generation part and a discharge part. It is a block diagram of an electrostatic atomization control apparatus. It is a graph which shows the change of passage of time and the number of particulate water when the presence or absence and length of a conduit part are changed. It is FIG. 10 equivalent view at the time of changing the shape of a conduit | pipe part. FIG. 8 is a diagram corresponding to FIG. FIG. 11 is a view corresponding to FIG. 10 when the shape of the bellows type conduit portion is changed. A part of conduit part and case concerning modification 2 are shown, (a) is a sectional view which met an axis of a conduit part, and (b) is a Y arrow line view of (a).

Explanation of symbols

16 Centrifugal fan (air conditioning fan)
DESCRIPTION OF SYMBOLS 20 Air conditioning case 21 Cooling heat exchanger 22 Heating heat exchanger 31 Bypass passage 32 Air mix damper 36 Side vent duct 36 Outlet 40 Vent door 41 Defrost door 42 Foot door 70 Electrostatic atomization part 71 Conduit part 71a Base end opening Part (opening at the other end)
71b Tip opening (one end opening)
75 Blower 76 Electrostatic atomization control device (control unit)
78 Peltier element (thermoelectric element)
78b Low temperature part 91 ON / OFF switch (changeover switch)
A Electrostatic atomizer

Claims (4)

An electrostatic atomizer that obtains charged particulate water by applying a voltage to the water;
A conduit portion for guiding charged particulate water obtained in the electrostatic atomization portion,
The electrostatic atomizer characterized by the inner peripheral surface of the said conduit | pipe part being made into the smooth shape. An electrostatic atomizer that obtains charged particulate water by applying a voltage to the water;
A conduit portion for guiding charged particulate water obtained in the electrostatic atomization portion,
The electrostatic atomization characterized in that the one end opening and the other end opening are positioned so as to at least partially overlap each other when the conduit portion is viewed from one end opening side of the conduit portion. apparatus. In the electrostatic atomizer of Claim 1 or 2,
It has a low-temperature part that is lower than the dew point of the surrounding air due to the thermoelectric effect that occurs when a voltage is applied, and includes a thermoelectric element for condensing moisture in the air to obtain condensed water,
The electrostatic atomizer is configured to apply a voltage to the condensed water obtained by the thermoelectric element. In the electrostatic atomizer as described in any one of Claim 1 to 3,
The electrostatic atomizer characterized by the outlet side opening part of a conduit | pipe part being arrange | positioned at the instrument panel which accommodates the air conditioner of a vehicle.

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