JP2011158247A - Installation structure of ion generating element, air blow structure with the same, air-conditioning device, and air-conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioning device that increasing ion generating amount, thereby enhancing an antiseptic effect in air. <P>SOLUTION: A discharging surface 2 of the ion generating element 1 is tilted and provided so that an upper stream side is closer to the installation board 3 and a lower stream is more away from the installation board 3 in relation to a flow path P of air, and so that an apex A of a tilt angle θ in relation to the flow path P of air is positioned on an upper stream side. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an ion generating element mounting structure capable of sterilizing air blown when air is sent, a blower structure using the same, an air conditioner, and an air conditioning system.

  In recent years, in highly airtight and newly built houses and new furniture, harmful substances such as formaldehyde and volatile organic compounds that are undesirable for the human body are emitted from the building materials such as carpets, flooring, and cloth into the air. Planned ventilation is needed to control.

  Therefore, conventionally, as a ventilator having a function of taking air outside the building into the room and discharging the air outside the building, the outside air is taken in and supplied to the room.

  However, the purification process of the outside air has a problem that it cannot remove mold, viruses, etc., only by passing the introduced air through the filter or providing an electrostatic adsorption device in the path of the introduced air to adsorb dust. there were.

  As a countermeasure against such a problem, the central ventilation unit of Patent Document 1 is disclosed.

  The central ventilation unit aims to achieve air purification, sterilization, and deodorization effects by performing ventilation throughout the building without circulating indoor air, and to achieve compactness and easy maintenance.

  This central ventilation unit is a central ventilation unit that purifies the outside air introduced from the outside air intake opening that opens to the main body case and supplies it to the room, and is equipped with a photocatalyst and an ozone generator that simultaneously generates ozone and negative ions. A purifier is installed in the main body case.

  According to this central ventilation unit, an air purifier equipped with a photocatalyst and an ozone generator is installed in the main body case of the central ventilation unit. It is said that sterilization and deodorization by ozone generated by an ozone generator and health maintenance of residents by negative ions beneficial to the human body can be achieved.

JP 2000-97452 A ([0006] to [0017], FIG. 1)

  However, sterilization with ozone and photocatalyst can sterilize the air passing therethrough but cannot sterilize the floating bacteria floating in the room. Moreover, ozone is harmful to the human body, and air containing ozone cannot be released indoors.

  Further, in the central ventilation unit, when the outside air is supplied to a plurality of rooms via the duct, the generated ions disappear on the way through the duct, so that it is considered that the sterilizing effect is not sufficient.

  The present invention has been made paying attention to such problems, and prevents the generation of mold inside, and has an ion generating element mounting structure capable of sterilizing floating bacteria including general living bacteria and fungi, and It aims at providing the used ventilation structure, an air conditioner, and an air conditioning system.

  The invention according to claim 1 is characterized in that, in an ion generating element mounting structure for generating ions, a discharge surface for generating ions is inclined with respect to an air flow.

  Since the discharge surface of the ion generating element is provided with an inclination, the air flowing in contact with the discharge surface wipes away the ions generated on the discharge surface without retaining them. Thereby, compared with the case where the discharge surface is directed parallel to the air flow path, the amount of generated ions is increased and the sterilization effect is improved.

(A) is a figure which shows the attachment structure of the ion generator concerning embodiment of this invention. (B) is a table | surface which shows the amount of ion generation when an inclination angle is 15 degrees in a discharge surface, (c) is a table | surface which shows the amount of ion generation when an inclination angle is not provided in a discharge surface. The figure which shows the inclination angle and the change of an ion generation rate when the discharge surface of an ion generator is made to incline and the flow velocity of the air of a ventilator is made into a normal state. The figure which shows the change of an inclination | tilt angle and an ion generation rate when making the discharge surface of an ion generator incline and restrict | squeezing the exhaust air of a ventilator and making it the state where the flow velocity was made quick. (A) is a perspective view which shows schematic structure of an ion generating element, (b) is a perspective view of an ion generating element. The figure which shows the structure of the ion generator which consists of an ion generating element and a high voltage | pressure pulse drive circuit. The composition diagram of the positive ion and negative ion which generate | occur | produce by plasma discharge. The composition diagram of the positive ion and negative ion which generate | occur | produce by plasma discharge. Schematic which shows the main structures of the ventilation apparatus for bathrooms as an air conditioner. The top view which shows the main structures of the ventilator for bathrooms of FIG. The top view which shows the main structures of the ventilation apparatus for bathrooms of FIG. The figure which shows the main structures of the all concealment type indoor ventilation apparatus which is concealed on a ceiling as an air conditioner and ventilates for 24 hours. The figure which shows the main structures of the semi-hidden type indoor ventilation apparatus which is partially concealed on the ceiling as an air conditioner and ventilates for 24 hours. The bottom view of the room ventilation apparatus of FIG. The figure which shows the structure of the air supply pipe | tube provided with the ion generator which made the discharge surface incline. (A) is the figure which shows the attachment position of the ion generator seen from the plane direction of a collar part, (b) is sectional drawing of (a), (c) changed various attachment positions of the ion generator in an air supply pipe | tube. FIG. (A) is the schematic of the ventilation system provided in the building using the indoor ventilator shown in FIG. 8, (b) is explanatory drawing which showed planarly the flow path through which air flows in the room which supplies external air. Explanatory drawing of the building which comprised the 2nd type ventilation system with the pipe fan provided with the ion generator. Explanatory drawing of the building which comprised the 3rd type ventilation system using the air supply pipe provided with the ion generator. Sectional drawing which shows the main structures of the pipe fan provided with the ion generator.

[Ion generator mounting structure]
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 (a) shows an attached state of the ion generating element 1. The discharge surface 2 of the ion generating element 1 is installed such that the upstream side is close to the installation plate 3 and the downstream side is away from the installation plate 3 with respect to the air flow path P. The discharge surface 2 is tilted so that the vertex A is located on the upstream side. A mounting opening 4 for the ion generating element 1 is formed in the installation plate 3, and a mounting member 5 is screwed to the mounting opening 4.

  The inclination angle θ is set to a range of 25 ° or less (preferably 5 ° to 20 ° and 15 ° in FIG. 1) with respect to the air flow path P. The discharge surface 2 only needs to be inclined relative to the air flow path P, and a fin or a current plate as a guide may be provided for the discharge surface 2.

  When the discharge surface 2 of the ion generating element 1 is inclined relative to the air flow path P, the air flowing in contact with the discharge surface 2 wipes away the ions generated on the discharge surface 2 and carries it. Compared with the case where the discharge surface 2 is directed parallel to the air flow path, the amount of ions generated in the air is increased and the sterilization effect is improved. When the inclination angle is greater than 25 °, the flow path resistance increases and the amount of ions generated decreases. When the inclination angle is in the range of 25 ° or less, an effect of increasing the amount of ions obtained from the discharge surface can be obtained.

  In FIG. 1B, the inclination angle of the discharge surface 2 with respect to the flow path of the air blown from the fan (sirocco fan) is 15 °, and the height of the ion measuring device (separated upward from the discharge surface 2) relative to the fan This shows the generation amount of positive ions and negative ions when the distance is changed.

  FIG. 1 (c) shows that the inclination angle of the discharge surface 2 with respect to the flow path of the air blown from the fan is 0 °, and the height of the ion generating element with respect to the fan (the distance away from the discharge surface 2 upward). ) Shows the amount of positive ions and negative ions generated. According to FIGS. 1B and 1C, when the inclination angle is set to 15 °, both the generation amount of positive ions and negative ions are increased as compared with the case where the inclination angle is 0 °.

  When the separation distance from the discharge surface 2 is 50 mm, for example, positive ions and negative ions are 70000 pieces / cc (inclination angle 15 °): 20000 pieces / cc (inclination angle 0 °), and 60 mm apart. The amount of ions generated is 20000 / cc (inclination angle 15 °): 7000 / cc (inclination angle 0 °), and the amount of negative ions generated 20000 / cc (inclination angle 15 °): 8000 / cc (inclination). (Angle 0 °).

Furthermore, when the separation distance from the discharge surface 2 is 70 mm, for example, the number of positive ions and negative ions is zero at the inclination angle of 0 °, but the separation distance is set to 80 mm at the inclination angle of 15 °. The generation amount of positive ions is 10,000 / cc, the generation amount of negative ions is 10,000 / cc, and the generation amount of positive ions and negative ions becomes zero only when the separation distance becomes 100 mm.

  The above-mentioned measurement of the amount of generated ions is measured by installing an ion measuring device at a distance of 30 cm from the fan.

  Thus, it is found that by providing an inclination angle rather than making the discharge surface 2 horizontal, the generation amount of positive ions and negative ions is increased, and the bactericidal effect is improved.

  2 and 3 are graphs showing the ratio of the amount of ions generated with respect to the inclination angle θ of the discharge surface 2. If it demonstrates based on the experimental data of a bathroom ventilation dryer, the standard value 1 of ion generation amount is the time of normal ventilation, the inclination angle θ is 0 °, and the ion generation amount generated when blowing in the dry mode. 1, the amount of ion generation in the difference in inclination angle or the difference between dry air blowing and cool air blowing is expressed as a ratio.

  The curve in the drying mode is when the air in the bathroom is sucked by the ventilator 20 (bathroom ventilation dryer) in FIG. 8 and the heater 36 is energized and blown into the bathroom while discharging a part of the sucked air. It is a curve. The curve of the cool breeze mode is a curve when the energization of the heater 36 of the ventilator 20 is stopped, the air in the bathroom is sucked, and a part of the sucked air is discharged while the sucked air is blown into the bathroom. . The curve of the cool air (weak) mode is a curve when the energization of the heater 36 of the ventilation device 20 is stopped and the rotation speed of the sirocco fan 27 is further reduced. The normal air blowing indicates the time when the air is blown in a normal air blowing state without taking measures to increase the flow rate with respect to the air blowing of the sirocco fan 27. When the blowout air is blown, the air blown by taking measures to prevent the divergence of ions with respect to the blown air from the sirocco fan 27 is shown. The amount of ions generated is measured directly under the reflux air channel 35 and the front panel 29.

  For example, if the ion generation amount is 50000 / cc during normal ventilation, the tilt angle θ = 0 °, and the drying mode, the ion generation amount is 1.2α / cc. The ratio is 1.2.

  According to such experimental results, the amount of ion generation changes in a range where the inclination angle θ is 25 ° or less, but the amount of ion generation is the same even at the same inclination angle due to the difference in cool air mode, cool air (weak) mode, and drying mode. It turns out that they are different. Therefore, there is a change in the amount of ion generation when the inclination angle θ is 25 ° or less, and the tendency for the amount of ion generation to increase from the reference value is remarkable when the inclination angle θ is preferably 5 ° to 20 °. This tendency can also be seen when the amount of air blown during blowing is reduced.

  FIG. 4A and FIG. 5 are schematic perspective views of the ion generating element 1. A rectangular opening is formed on the upper surface of the box-shaped main body 6, and a flat dielectric 7 is provided in the opening. The upper surface of the dielectric 7 is the discharge surface 2 and coincides with the upper surface of the main body 6. A high voltage pulse drive circuit 8 is accommodated in the lower part of the main body 6.

  FIG. 4B shows a perspective view of the ion generator 9. A concave portion 6A in which the ion generating element 1 is disposed is formed on the upper portion of the main body 6, and a protrusion 6B is formed at a corner portion of the concave portion 6A. The protrusion 6B prevents an object or the like from contacting the discharge surface 2. A window 6C is provided next to the recess 6A, and a pair of terminals 9A for inputting alternating current is provided on the side surface of the main body 6. Inside the main body 6, a booster coil connected to the lead wire 11 and the terminal 9 </ b> A of the ion generating element 1 and a high voltage pulse drive circuit 8 are arranged.

  The ion generator 9 includes an ion generating element 1, a main body 6, a booster coil, and a high voltage pulse drive circuit 8. A plate-like internal electrode 10B and a net-like external electrode 10A are disposed on the upper and lower surfaces of the dielectric 7 so as to face each other. The external electrode 10A is exposed to the outside from the upper surface of the main body 2. A high-voltage pulse drive circuit 8 is connected to the internal electrode 10B and the external electrode 10A via a lead wire 11. The step-up coil is connected to a commercial power source via a switch circuit that is linked with an on / off switch of the air conditioner, and an alternating current is supplied from the terminal 9A when the air conditioner is turned on. The alternating current is converted into a high voltage by the boost coil to drive the high voltage pulse drive circuit 8. When the high voltage pulse drive circuit 8 is driven, a high voltage pulse voltage composed of a positive voltage and a negative voltage is applied between the internal electrode 10B and the external electrode 10A, and plasma discharge occurs. As a result, the air around the external electrode 10A is ionized, and approximately the same number of positive ions and negative ions are generated.

  The concentration of ions generated when an alternating high voltage was applied to the application electrode was measured. As an example, the applied AC voltage has a frequency of 20 kHz and an applied voltage of 6.6 kV (from 0 v to a positive or negative peak voltage). An air ion counter was used as an ion concentration measuring device, and small ions having a mobility of 1 cm / Vsec or more were detected at a position 25 cm from the discharge surface 2 of the ion generator 9. As a result, about 200,000 ions / cm positive ions and negative ions were measured simultaneously.

6 and 7 are schematic diagrams of positive ions and negative ions generated in the ion generating element 1. FIG. As described above, when an alternating high voltage is applied between the internal electrode 10B and the external electrode 10A, oxygen or moisture in the air is ionized by receiving energy by ionization, and H + (H ₂ O) _m (m is an arbitrary value) Ions) and O _2- (H ₂ O) _n (where n is an arbitrary natural number) are generated, and these are released into space by a fan or the like.

As shown in FIG. 7, these H + (H ₂ O) _m and O _2- (H ₂ O) _n adhere to the surface of airborne bacteria and chemically react to form H ₂ O ₂ or. OH is produced. Since H ₂ O ₂ or .OH exhibits a very strong activity, they can surround and inactivate airborne bacteria in the air. Here, .OH is one kind of active species, and represents radical OH.

Positive and negative ions react chemically on the cell surface of airborne bacteria as shown in formulas (1) to (3) to generate hydrogen peroxide (H ₂ O ₂ ) or hydroxyl radical (.OH) as active species. To do. Here, in Formula (1)-Formula (3), m, m ', n, and n' are arbitrary natural numbers. Thereby, floating bacteria are destroyed by the action of decomposing active species. Therefore, airborne bacteria in the air can be inactivated and removed efficiently.

_{H + (H 2 O) m} + O 2 - (H 2 O) n → · OH + 1 / 2O 2 + (m + n) H 2 O ··· (1)
_{H + (H 2 O) m} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{H + (H 2 O) m} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)
By the release of the positive and negative ions by the above mechanism, a bactericidal effect such as floating bacteria can be obtained. FIG. 6 and FIG. 7 schematically describe this.

In addition, since the above formulas (1) to (3) can produce the same action even on the surface of harmful substances in the air, hydrogen peroxide (H ₂ O ₂ ) or hydroxyl radical (. OH) can oxidize or decompose harmful substances and convert chemical substances such as formaldehyde and ammonia into harmless substances such as carbon dioxide, water, and nitrogen, thereby making them virtually harmless. is there.

Therefore, by driving the blower fan, positive ions and negative ions generated by the ion generating element 1 can be sent out of the main body. And by the action of these positive ions and negative ions, fungi and fungi in the air can be sterilized and their growth can be suppressed.
[Application to air conditioner and air blowing structure]
Next, an air conditioner and a blower structure installed with the above-described ion generator 9 inclined will be described. This air conditioner has any air conditioning function such as ventilation, air supply, cool breeze, heating, etc., and has at least one function of ceiling-mounted indoor ventilator, ventilation, air supply, cool breeze, heating Either a bathroom ventilation device or a heating device may be used.
[Air conditioner 1: Bathroom ventilator]
FIG. 8 shows a state where the above-described ion generating element 1 is installed in a bathroom ventilation device 20 as an air conditioner. 9 is a plan view of the bathroom ventilator 20 of FIG. 8, and FIG. 10 is a bottom view of the bathroom ventilator 20 of FIG. 8 viewed from the bathroom side.

  The bathroom ventilator 20 is disposed in the mounting opening 22 of the bathroom ceiling 21, and a rectangular frame 23 </ b> A is attached around the bathroom ventilator 20. The frame 23 </ b> A is a ceiling above the bathroom ceiling 21. It is supported by anchor bolts 25 attached to the wall 24.

  An introduction opening 26 for taking in the bathroom air into the bathroom ventilation device 20 is formed inside the bathroom ventilation device 20, and a fan case 28 for incorporating a sirocco fan 27 into the introduction opening 26 is formed. is set up.

  The introduction opening 26 is covered by a cosmetic front panel 29 (not shown) provided with an air inlet / outlet opening. The fan case 28 is formed with a suction opening 30 for introducing air and an exhaust opening 31 for discharging air. The sirocco fan 27 sucks air from the suction opening 30 and exhausts air from the exhaust opening 31. It can be done.

  The shaft S of the motor M1 provided in the upper part of the bathroom ventilation apparatus 20 is passed through the sirocco fan 27, and the tip of the shaft S is fixed by a nut. The motor M1 sucks air from the introduction opening 26 and the suction opening 30 and exhausts it from the exhaust opening 31 by rotating the sirocco fan 27 by a drive current of a control device (not shown).

  In the vicinity of the exhaust opening 31 of the fan case 28, the above-described ion generator 9 is incorporated. Moreover, the ion generator 9 is arrange | positioned at the outer peripheral side wall part side of the fan case 28 from which the flow velocity of the air sent out from the sirocco fan 27 becomes quick. The ion generator 9 is installed on the flat surface 28 </ b> A of the fan case 28. The flat portion 28A corresponds to the installation surface 3.

  The discharge surface 2 of the ion generator 9 is inclined with respect to the air flow channel Ap of the sirocco fan 27 as described above, and is installed so that the upstream side of the discharge surface 2 is low and the downstream side of the discharge surface 2 is high. Has been.

  In addition, you may provide the ion generator 9 in the side wall 28B of the substantially circumferential shape of the fan case 28 curved. The installation direction of the ion generator 9 is such that the air flow path and the longitudinal direction of the ion generator 9 are aligned in parallel, but the longitudinal direction of the ion generator 9 is oriented at a right angle with respect to the air flow path. The amount of wiping away ions from the discharge surface 2 may be increased.

  In the bathroom ventilator 20, on the downstream side of the exhaust opening 31 of the fan case 28, the exhaust air passage 33 for discharging the sucked air to the outside of the building through the duct 32, and the direction of the sucked air by the damper 34. A return air channel 35 is provided to return to the bathroom. A damper 34 is provided at a branch portion between the reflux air passage 35 and the exhaust air passage 33.

  The damper 34 is moved up and down by a motor M2 provided in the shape of the bathroom ventilation device 20, a gear mechanism Gb for converting the power of the motor M2 into a swinging motion, and a link mechanism (not shown) provided on the rotating shaft of the damper 34. It can be swung, and is controlled to stop at a predetermined angle according to the number of rotations of the motor M2.

  A heater 36 is provided in the circulating air passage 35 so that the air circulating in the bathroom can be heated by the heater 36.

  A duct joint 38 is attached to the peripheral portion of the exhaust port 37 of the exhaust air passage 33 of the bathroom ventilator 20. The duct joint 38 has a cylindrical shape that is the same size and the same size as the exhaust port 37. The duct 32 is mounted on the outer periphery of the duct joint 38 and is fixed to the outer periphery of the duct joint 38 with an aluminum adhesive tape (not shown). Is done.

In this way, the bathroom ventilation drying device has the above-described configuration, so that it is possible to increase the amount of ions generated in the bathroom where the humidity is high and the mold tends to be generated, and to sterilize the bacteria floating in the bathroom. Can be obtained.
[Air conditioner 2: Indoor ventilation system]
FIG. 11 shows an indoor ventilator as an air conditioner according to an embodiment of the present invention.

  This indoor ventilator (hereinafter referred to as a ventilator) 40 is a totally concealed type that is attached to the upper part of the ceiling plate in the room, but as shown in FIGS. May be a ceiling cassette type (semi-hiding type). The other configuration of the semi-concealment type ventilation device of FIGS. 12 and 13 is the same as the configuration of the ceiling-embedded type (full concealment type) of FIG.

  In the ventilator 40, an outside air introduction air passage AR1 for taking in air outside the building (outside air) and supplying it into the room into a main body case 41 disposed on the ceiling in the building such as a passage portion, and room air. An exhaust air passage AR2 is formed for taking in and exhausting outside the building.

  In addition, a heat exchange element that performs heat exchange between an outside air passage through which air outside the building passes and an exhaust passage through which room air passes is provided at the intersection of the outside air introduction air passage AR1 and the exhaust air passage AR2. 42 (heat exchange element) is provided. The part for storing the heat exchange element 42 is divided into spaces A, B, C, and D. The spaces A and B are connected via a passage through which the outside air of the heat exchange element 42 passes. The spaces C and D are connected via a passage through which room air of the heat exchange element 42 passes.

  A fan case 43 is provided in the outside air introduction air path AR <b> 1 of the main body case 41, and a sirocco fan 44 is disposed inside the fan case 43. The sirocco fan 44 is attached to the rotating shaft of the motor 45. The motor 45 is attached to the partition walls 46 of the outside air introduction air path AR <b> 1 and the exhaust air path AR <b> 2, and the rotation shaft of the motor 45 protrudes on both sides of the partition wall 46.

  A duct joint 47 is provided at the entrance of the main body case 41 on the outside air introduction air path AR1 side. The duct joint 47 faces the outside of the building wall W facing outside through a duct (not shown), so that outside air outside the building wall W can be introduced. An exhaust port for the introduced external air is formed on the downstream side of the heat exchange element 42 in the external air introduction air path AR1 of the main body case 41, and a duct joint 48 is provided at the edge of the exhaust port.

  The duct joint 48 is connected to a duct 49 leading to a room for supplying outside air. Outside air introduced from the duct joint 47 is supplied from an air supply port 50 (air supply pipe) of each room through a duct 49 connected to the duct joint 48 (see FIG. 16A). A filter 51 is provided on the upstream side of the passage through which the outside air of the heat exchange element 42 passes.

  A fan case 52 is provided in the exhaust air path AR <b> 2, and a sirocco fan 53 is disposed inside the fan case 52. The sirocco fan 53 is attached to the rotating shaft of the motor 45.

  A duct joint 54 is provided at the entrance of the exhaust air passage AR2 of the main body case 41. A duct 55 is connected to the duct joint 54, and indoor air is sucked into the ventilation device 40 through the duct 55 from the indoor air suction port RA. An outlet for indoor air is formed on the downstream side of the heat exchange element 42 in the exhaust air path AR2, and a duct joint 56 is provided at the outlet. The duct joint 56 faces the outside of the building through the duct 57. A filter 58 is provided on the upstream side of the passage of the heat exchange element 42 through which room air passes.

  The motor 45 is connected to the commercial power supply AC via the relay switch SW1. The relay switch SW1 is turned on / off by the control device 59 to supply power to the motor 45 or to cut off power supply.

  An ion generator 9 is provided in the outside air introduction air path AR1 inside the ventilation device 40. The ion generator 9 can be installed at an upstream position or a downstream position of the heat exchange element 42. The discharge surface 2 of these ion generators 9 is inclined with respect to the air flow path so that the upstream side is close to the installation wall surface and the downstream side is far from the installation wall surface.

  When the ion generator 9A is provided on the upstream side in the vicinity of the filter 51, bacteria, mold, and the like attached to the filter 51 can be suppressed, and clean air can be removed indoors by removing dust and dirt with the filter 51. Can supply.

  When the ion generator 9 </ b> B is provided in the vicinity of the main body air inlet 48 </ b> A of the ventilation device 40, it is possible to sterilize floating bacteria such as mold in the ventilation device 40 and supply clean air to the room through the duct 49.

  Furthermore, when the ion generator 9C is provided near the outside air inlet of the ventilator 40 or the ion generator 9D is provided at the duct joint 47 near the outside air inlet, sterilized air can be taken into the device. In addition, sterilization processing in the apparatus such as the sirocco fan 44 can be performed.

Moreover, when the ion generator 9E is provided in the outside air inlet of the building wall W or in the vicinity (near), the outside air can be sterilized (sterilization of floating bacteria) and introduced into the building (in the duct and the apparatus).
[Air supply structure]
FIG. 14 shows the structure of the air inlet structure. An air supply pipe 50 as an air supply unit is attached to an indoor air supply opening for supplying outside air introduced by the ventilator 40 into the room. The air supply pipe 50 includes a flange portion 63 attached to the attachment hole 62 of the wall surface 61 and an L-shaped pipe 64 attached to the back of the flange portion 63. An ion generator 9 is attached to the peripheral wall portion of the L-shaped tube 64. The ion generator 9 is connected to a commercial power source AC (see FIG. 11) by an electric wire (not shown). An attachment hole for the ion generator 9 is opened in the L-shaped tube 64, and the ion generator 9 is attached to the attachment hole. As shown in FIG. 15 (b), the discharge surface 2 of the ion generator 9 is exposed facing the inner wall surface of the L-shaped tube 64. Since the air supply pipe 50 sterilizes the air supplied to the room immediately before the air is blown into the room, the sterilized air is always supplied into the room. Thereby, airborne bacteria in the room are also sterilized. The ion generator 9 may be provided on the inner surface of the opening edge of the L-shaped tube 64 or may be provided on the extension portion 65. A grill 66 is provided outside the air supply pipe 50 and allows outside air to pass through.

As shown in FIG. 15 (c), the ion generator 9 is arranged at positions A, B, and C, so that ions can be generated more appropriately than the lower position where dust and dirt tend to accumulate. it can. Further, although the ion generator 9 is provided in the passage portion of the air supply pipe 50, it may be provided in the grill portion 66 provided in the air supply pipe 50. In the case where it is provided in the grill portion 66, it is more effective because it is close to the room.
[Ventilation system]
FIG. 16A shows a ventilation system that sends outside air to a plurality of rooms or passages when performing first type ventilation. A duct 49 serving as a connection pipe is connected to the duct joint 48 of the ventilation device 40. The duct 49 branches off in the middle and extends to the rooms A and B, the passage, the living room, and other rooms. Air supply pipes 50 are provided on the ceilings of the rooms A and B, the passage, the living room, and other rooms, and the terminal portions of the ducts 49 are connected to the respective air supply pipes 50. Further, a ceiling such as a passage is provided with an indoor air inlet (annular port) RA, and a duct 55 is connected to the indoor air inlet (annular port) RA. The duct 55 is connected to the duct joint 54 of the ventilation device 40. FIG. 16B shows a state in which air flows from the air supply pipe 50 to the undercut portion P in the planar shape of the room.

  The air supplied from the duct joint 47 of the outside air introduction air passage AR1 is supplied into the room from the supply pipe 50 by a sirocco fan 53 provided in the main body of the ventilation device 40, and is provided with a galley (undercut provided in the door portion of the entrance / exit. Part P) is sucked into an indoor air inlet (annular inlet) RA provided on a ceiling surface such as a passage, and is discharged outside the building through the ventilator 40.

  As shown in FIG. 16 (b), the air supply pipe 50 provided with the ion generator 9F is provided in the corner C1 of the room or building, and the doorway C2 provided with a louver (undercut part P). (See FIG. 16 (b)) and located diagonally. The air supply port for supplying air and the undercut portion P from which the air flows out are located on the diagonal line of the three-dimensional space, and the air supply port and the door provided with the undercut portion P are separated from each other. When the air supplied from the trachea 50 is led to the indoor air suction port (ring air port) through the undercut portion P on the lower surface of the door, the air in a wide range in the room is ventilated.

  FIG. 17 shows a ventilation system that performs first type ventilation installed on the second floor. In this first type ventilation system, an air supply device 70 (for example, a so-called pipe fan) is provided as a ventilation device for introducing outside air into the building on the wall of the room R1 on the second floor. FIG. 19 shows the configuration of the air supply device 70. The air supply device 70 includes a motor and a fan 71 inside a housing mounted on the wall of the building, takes outside air from the opening 72 of the suction port facing the outside of the building, and draws outside air from the exhaust port into the room. Air up. An ion generating element 9 is attached to the inner wall of the exhaust port, and the discharge surface 2 is inclined.

  The fan 71 of the air supply device 70 takes outside air from the opening 72 and supplies it from the grill 74 to the rooms R1, R2, and R3. Each room is supplied with outside air through a garage P under the door. The air supplied to the rooms R1, R2, and R3 is exhausted from an exhaust port 73 provided with an exhaust fan through a door gap and a grill 74. The exhaust port 73 may not have a fan and may be the second type ventilation by natural exhaust.

  The air supply device 70 is powered by a switch (not shown) and rotates. The ion generator 9 provided at the outside air inlet of the air supply device 70 in the room on the second floor is connected to a switch of the air supply device 70 and is energized when the air supply device 70 is turned on to cause plasma discharge. Sterilizes airborne bacteria floating in the air.

    The lower floor of the building of FIG. 17 is a first type ventilation system, and a duct 82 is connected to the bathroom ventilation device 81 installed in the ceiling opening 80 of the bathroom R4, and the duct 82 is the ceiling of the dressing room R5. Is connected to the intake grille 83. When the fan of the bathroom ventilation device 81 is rotated, air can be sucked and exhausted from the bathroom R4 and / or the dressing room R5.

  FIG. 18 shows a ventilation system of the third type ventilation. This type 3 ventilation system forcibly exhausts air while naturally supplying air, and an air supply port 90 for taking in outside air outside the building is provided in a plurality of rooms. Reference numeral 91 denotes a bathroom ventilation device provided in the bathroom R9, and reference numeral 92 denotes a suction port of the bathroom ventilation device 91. The bathroom ventilator 91 includes a suction port 92 for introducing air from the bathroom R9 and an opening (not shown) for sucking air from the dressing room R8, and this opening is connected to the dressing room R8 via a duct 93A. The suction port 94 is connected to the ceiling.

  Air sucked from the suction port 94 and the suction port 92 of the bathroom R9 is exhausted to the outside of the building through a duct 93B communicating with the outside of the building. When air is sucked into the suction port 94 through the undercut portion P, the opening of the door, or the opening of the door, outside air is introduced from the air supply port 90 of the room R6 away from the bathroom R9, and the undercut portion. The rooms R6 and R7 are ventilated through a gap such as P. The air supply port 90 of the room R6 is provided with an ion generating device 9, which contains positive and negative ions in the introduced air, and is released into the room R6 and sterilizes the floating bacteria floating in the room R6. The air sterilized in the room R6 is sent to the room R7, the dressing room R8, and the bathroom R9 to sterilize the floating bacteria in the air of each room.

  A ventilation device 100 (intermediate duct fan) for exhaust is provided in a room on the second floor of the building. A duct 101A that faces the outside of the building and communicates with the outside air is connected to one exhaust opening of the ventilator 100 so that indoor air can be exhausted from the ventilator 100 to the outside of the building through the duct 101A. It has become. Further, ducts 101 </ b> B and 101 </ b> C are connected to the other suction opening of the ventilation device 100. Exhaust openings that lead to the ducts 101B and 101C are formed in the ceiling of each room. In addition, it is good also as a 1st type ventilation system using air supply fan instead of a natural air supply port.

  The discharge surface 2 of the ion generator 9 of FIGS. 16 to 18 is inclined with respect to the air flow path as described above, so that the sucked air can be sterilized. Compared with the case where the discharge surface is directed parallel to the path, the amount of generated ions is increased and the sterilization effect is improved. Moreover, if it provides in the external air introduction air path AR1 of ventilator 20,40, the disinfection function inside a ventilator will improve. In particular, when the heat exchange element 42 is provided, the heat exchange element 42 and the filter 51 can be sterilized, so that clean air can be taken into the building.

  Further, when the ion generating device 9 is also provided in the air supply pipe 50 and the discharge surface 2 is inclined with respect to the air flow path, the air and the room introduced into the room from the air supply pipe 50 regardless of the presence or absence of the ventilation apparatus. The internal air can be sterilized.

  Further, in the ventilation system, when the air is provided in the duct 49, the air supply pipe 50, etc., sterilization is performed immediately before the air is supplied to the room, so that the air sterilization ability of the room is also improved. In addition, when the exhaust air path AR2 is provided, the exhaust air path AR2 of the ventilator 40 and the inside of the duct 55 can be sterilized, so that the sterilizing effect inside the ventilator 40 is improved and the generation of mold can be prevented.

  Of course, the ion generating element mounting structure according to the above embodiment can be applied to other air-conditioning equipment such as an air purifier and a humidifier.

  In addition, the positive and negative ion embodiments disclosed this time are examples in all respects and are not limited thereto.

DESCRIPTION OF SYMBOLS 1 Ion generating element 2 Discharge surface 3 Installation board (theta) Inclination angle p Air flow direction 7 Dielectric material 8 High voltage | pressure pulse drive circuit 9 Ion generator 20 Bathroom ventilator 27 Sirocco fan 28 Fan case 32 Duct 33 Exhaust air path 35 Circulating air Road 36 Heater 40 Indoor ventilation device 9A to 9F Ion generator 42 Heat exchange element 43 Fan case 49 Duct

Claims (7)

  An attachment structure for an ion generating element for generating ions, wherein a discharge surface for generating ions is inclined with respect to an air flow.   An ion generating element mounting structure in which an ion generating element having a discharge surface capable of generating ions is installed in an air flow path, such that an apex of an inclination angle with respect to the air flow path is located upstream. An installation structure of an ion generating element, wherein the discharge surface is installed with an inclination.   The ion generating element mounting structure according to claim 1, wherein the inclination angle is set to about 25 ° or less.   A blower structure characterized in that the ion generating element mounting structure according to any one of claims 1 to 3 is used.   An air conditioner using the air blowing structure according to claim 4, wherein the air conditioner has any air conditioning function such as ventilation, air supply, cool breeze, and heating.   6. The air conditioner according to claim 5, wherein the air conditioner is any one of a bathroom ventilator, a ceiling-mounted ventilator, and a heating device having at least one function of ventilation, air supply, cool breeze, and heating. Air conditioner to do.   An air conditioning system comprising the air conditioner according to claim 5.