JP2010065970A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of efficiently performing works such as maintenance and replacement of components to an electrostatic atomizer. <P>SOLUTION: This air conditioner includes: a suction device 58 for discharging the air sucked from a suction opening outdoors; an electrostatic atomizing unit 30 generating electrostatic mists; a high voltage transformer 24 supplying high voltage to the electrostatic atomizing unit 30; and a control section 42 for controlling the high voltage transformer 24 and the electrostatic atomizing unit 30. The suction device 58, the electrostatic atomizing unit 30, the high voltage transformer 24 and the control section 42 are connected so that the suction device 58, the electrostatic atomizing unit 30, the high voltage transformer 24 and the control section 42 are integrally demounted from the air conditioner at a time. Thus, the man-hour of inefficient high-place work can be reduced, and service performance can be improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioner including an indoor unit having an air cleaning function for purifying indoor air.

  Some conventional air conditioners have a deodorizing function, for example, adsorb odor components with an air cleaning pre-filter provided at an air inlet of an indoor unit, or have an oxidative decomposition function provided in the middle of an air passage. Odor components are adsorbed by the deodorizing unit.

  However, since the air conditioner with a deodorizing function removes odor components contained in the air sucked from the suction port and deodorizes it, the odor components contained in the indoor air and the odor adhering to curtains, walls, etc. The component could not be removed.

  Therefore, an odorous component contained in the indoor air is provided by providing an electrostatic atomizer in the air passage of the indoor unit, and blowing out the electrostatic mist generated by the electrostatic atomizer with a nanometer-size electrostatic mist. An air conditioner that removes odorous components adhering to curtains and walls has also been proposed (see, for example, Patent Document 1 or 2).

In such an air conditioner, the electrostatic atomizer is disposed in the vicinity of the suction port or the outlet, or downstream of the heat exchanger or the indoor fan.
JP 2005-282873 A JP 2006-234245 A

  However, in the conventional configuration, there is a possibility of maintenance of the electrostatic atomizer and replacement of parts, and no consideration has been given to maintenance of these electrostatic atomizers and replacement of parts. . More specifically, the air conditioner is generally installed at a high position on the wall of the room, and maintenance of the electrostatic atomizer and work for replacing parts are high place work, and these work is performed. There was a problem that the work would be inefficient for the worker.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide an air conditioner capable of efficiently performing maintenance on an electrostatic atomizer and work for replacing parts.

  In order to solve the above-described conventional problems, an air conditioner of the present invention includes a suction port for sucking room air, a heat exchanger for exchanging heat with the air sucked from the suction port, and heat exchange by the heat exchanger. An air conditioner provided with a blower fan that conveys the air, a blowout port that blows out the air blown from the blower fan, and a main flow path that connects the suction port and the blowout port. A suction device that exhausts the sucked air to the outside, an electrostatic atomization unit that generates electrostatic mist, a high-voltage transformer that supplies a high voltage to the electrostatic atomization unit, the high-voltage transformer, and the static electricity A control unit that controls the electroatomization unit, and the suction device, the electrostatic atomization unit, the high-voltage transformer, and the control unit are connected to each other.

Thereby, in particular, the suction device, the electrostatic atomization unit, the high voltage transformer, and the control unit are connected to each other so that the suction device, the electrostatic atomization unit, the high voltage transformer, and the control unit are integrated into one at a time. It can be removed from the air conditioner, which can reduce man-hours for inefficient work at high places and improve serviceability.

  The air conditioner of the present invention can efficiently perform maintenance for the electrostatic atomizer and replacement of parts.

  The first invention includes a suction port for sucking room air, a heat exchanger for exchanging heat with the air sucked from the suction port, a blower fan for conveying the air heat-exchanged by the heat exchanger, and the blower fan An air conditioner provided with a blowout port that blows out air blown from, and a main flow path that connects the suction port and the blower port, and a suction device that exhausts air sucked from the suction port to the outside; An electrostatic atomization unit that generates electrostatic mist, a high voltage transformer that supplies a high voltage to the electrostatic atomization unit, and a control unit that controls the high voltage transformer and the electrostatic atomization unit. The suction device, the electrostatic atomization unit, the high voltage transformer, and the control unit are connected to each other so that the suction device, the electrostatic atomization unit, the high voltage transformer, and the control unit are integrated together at a time. Take from air conditioner Succoth becomes possible, it is possible to reduce the man-hours of inefficient aerial work platforms, one in which the service is improved.

  In the second invention, the suction device is detachably arranged with respect to the frame of the air conditioner, and a suction device that is relatively larger than other components is removed from the frame of the air conditioner. The device, electrostatic atomization unit, high voltage transformer and control unit can be removed from the air conditioner all at once, reducing the number of inefficient work in high places and improving serviceability. is there.

  According to a third aspect of the present invention, there is provided a high voltage lead for electrically connecting the electrostatic atomizing unit and the high voltage transformer by arranging the electrostatic atomizing unit and the high voltage transformer in the vicinity of the periphery of the suction device. The length of the line can be shortened, and the influence of noise can be reduced.

  According to the fourth aspect of the present invention, the control unit is arranged on the front side of the air conditioner, so that the control unit that first confirms the operation regarding the static elimination unit is arranged on the front side of the air conditioner. It can reduce man-hours for inefficient high-altitude work and improve serviceability.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The air conditioner is composed of an outdoor unit and an indoor unit that are normally connected to each other through refrigerant pipes. FIGS. 1 and 2 show the indoor unit of the air conditioner according to the present invention.

  As shown in FIGS. 1 and 2, the indoor unit has a front suction port 2a and a top suction port 2b as suction ports for sucking room air into the main body 2, and the front suction port 2a has a movable front panel that can be opened and closed. 4 (hereinafter simply referred to as the front panel). When the air conditioner is stopped, the front panel 4 is in close contact with the main body 2 and closes the front suction port 2a. The front panel 4 moves in a direction away from the main body 2 to open the front suction port 2a.

Inside the main body 2, a prefilter 5 is provided on the downstream side of the front suction port 2 a and the upper surface suction port 2 b for removing dust contained in the air, and a front suction is provided on the downstream side of the prefilter 5. Air is blown from the heat exchanger 6 for exchanging heat with the indoor air sucked from the mouth 2a and the upper surface suction port 2b, the indoor fan 8 for conveying the heat exchanged by the heat exchanger 6, and the indoor fan 8. The upper and lower blades 12 change the air blowing direction up and down, and the left and right blades 14 change the air blowing direction left and right. Further, the upper portion of the front panel 4 is connected to the upper portion of the main body 2 via a plurality of arms (not shown) provided at both ends thereof, and a drive motor connected to one of the plurality of arms ( By driving and controlling the air conditioner, the front panel 4 moves forward from the position when the air conditioner is stopped (closed position of the front suction port 2a) during the air conditioner operation. Similarly, the upper and lower blades 12 are connected to the lower portion of the main body 2 through a plurality of arms (not shown) provided at both ends thereof.

  In addition, a ventilation fan unit 16 for ventilating room air is provided at one end of the indoor unit (on the left side when viewed from the front of the indoor unit and on the bypass channel 22 side of a partition wall 46c described later). In addition, an electrostatic atomizer 18 having an air cleaning function that generates electrostatic mist and purifies indoor air is provided behind the ventilation fan unit 16.

  FIG. 1 shows a state in which a main body cover (not shown) covering the front panel 4 and the main body 2 is removed, and FIG. 2 clearly shows a connection position between the indoor unit main body 2 and the electrostatic atomizer 18. Therefore, the electrostatic atomizer 18 accommodated in the main body 2 is separated from the main body 2. The electrostatic atomizer 18 actually has the shape shown in FIG. 3 and is attached to the left side of the main body 2 as shown in FIG. 1 or FIG.

  As shown in FIGS. 2 to 4, the electrostatic atomizer 18 includes a main channel that communicates from the front suction port 2 a and the upper suction port 2 b to the blowout port 10 via the heat exchanger 6, the indoor fan 8, and the like. 20, a high-voltage transformer 24 and a bypass blower fan 26 serving as a high-voltage power source are provided on the upstream side of the bypass flow path 22 and are provided in the middle of the bypass flow path 22 that bypasses the heat exchanger 6 and the indoor fan 8. An electrostatic atomizing unit 30 and a silencer 32 that are provided and have a heat radiation portion 28 that promotes heat radiation of the electrostatic atomization unit 30 are provided on the downstream side of the bypass flow path 22. Therefore, in the state where the high voltage transformer 24, the bypass blower fan 26, the heat radiating unit 28, the electrostatic atomizing unit 30, and the silencer 32 are arranged in order from the upstream side, the casing 34 constituting a part of the bypass flow path 22 is arranged. Contained. By housing in the casing 34 in this way, the assembly is improved and the flow path is formed by the casing 34, so that space is saved and the flow of air by the bypass blower fan 26 is changed to a high voltage that is a heat generating part. The transformer 24 and the heat radiating section 28 can be reliably applied and cooled, and the electrostatic mist generated from the electrostatic atomization unit 30 can be reliably introduced into the air outlet 10 of the air conditioner. Electric mist can be discharged into the air-conditioned room.

  Further, the casing 34 is arranged in the vertical direction so that the direction of the airflow flowing through the inside of the casing 34 is parallel to the direction of the airflow flowing through the main flow path 20 when viewed from the front of the indoor unit body 2. As a result, it can be disposed adjacent to the position overlapping the ventilation fan unit 16 when viewed from the front of the indoor unit main body 2, and further space saving is achieved.

  The high-voltage transformer 24 is not necessarily accommodated in the casing 34, but is cooled by the ventilation of the bypass flow path, so that it is accommodated in the casing 34 from the viewpoint of suppressing temperature rise or saving space. preferable.

  Here, a conventionally known electrostatic atomizing unit 30 will be described with reference to FIGS. 5 and 6.

As shown in FIG. 5, the electrostatic atomization unit 30 includes a plurality of Peltier elements 36 having a heat radiating surface 36a and a cooling surface 36b, and the above-described heat radiating portion connected in thermal contact with the heat radiating surface 36a. (E.g., radiation fins) 28, a discharge electrode 38 installed in thermal contact with the cooling surface 36b via an electrical insulating material (not shown), and a predetermined distance from the discharge electrode 38. It is comprised with the counter electrode 40 arrange | positioned.

  Further, as shown in FIG. 6, the electrostatic atomizers 18 and 18 </ b> A have a control unit 42 (see FIG. 1) disposed in the vicinity of the ventilation fan unit 16, and the control unit 42 includes a Peltier drive power source. 44 and the high voltage transformer 24 are electrically connected, and the Peltier element 36 and the discharge electrode 38 are electrically connected to the Peltier drive power supply 44 and the high voltage transformer 24, respectively.

  In addition, in order to discharge the high voltage from the discharge electrode 38 as the electrostatic atomizing unit 30 and generate the electrostatic mist, the counter electrode 40 may be omitted. For example, if one terminal of a high-voltage power supply is connected to the discharge electrode 38 and the other terminal is connected to the frame, the portion close to the discharge electrode 38 of the frame-connected structure and the discharge electrode 38 Will be discharged between. In such a configuration, the frame-connected structure can be regarded as the counter electrode 40.

  In the electrostatic atomization unit 30 configured as described above, when the control unit 42 controls the Peltier drive power supply 44 to cause a current to flow through the Peltier element 36, heat is transferred from the cooling surface 36 b toward the heat radiating surface 36 a, and the discharge electrode 38. Condensation occurs on the discharge electrode 38 due to a decrease in temperature. Further, when the high voltage transformer 24 is controlled by the control unit 42 and a high voltage is applied to the discharge electrode 38 to which the condensed water has adhered, a discharge phenomenon occurs in the condensed water, and electrostatic mist having a particle size of nanometer size is generated. appear. In the present embodiment, since a negative high voltage power source is used as the high voltage transformer 24, the electrostatic mist is negatively charged.

  In the present embodiment, as shown in FIG. 7, the main flow path 20 includes a rear wall 46 a of the base frame 46 constituting the main body 2, and both side walls extending forward from both ends of the rear wall 46 a ( 7 shows only the left side wall 46b, a rear wall 48a of the rear guider 48 formed below the underframe 46, and both side walls extending forward from both ends of the rear wall 48a (left side in FIG. 7). 48b, a partition wall separating the bypass channel 22 from the main channel 20 by one side wall (left side wall) 46b of the underframe 46 and one side wall (left side wall) 48b of the rear guider 48. 46c is constituted. Further, the bypass suction port 22a of the bypass channel 22 is formed on one side wall 46b of the frame 46, while the bypass outlet 22b of the bypass channel 22 is formed on one side wall 48b of the rear guider 48.

  In the case of an air conditioner, during cooling, the low-temperature air that has passed through the heat exchanger 6 of the indoor unit has a high relative humidity, and the electrostatic atomizer 18 includes a Peltier element 36 for replenishing moisture. In this case, dew condensation is likely to occur not only on the pin-shaped discharge electrode 38 of the Peltier element 36 but also on the entire Peltier element 36. On the other hand, at the time of heating, the high-temperature air that has passed through the heat exchanger 6 has a low relative humidity, so there is a very high possibility that no condensation will occur on the discharge electrode 38 of the Peltier element 36.

  Thus, as in the above configuration, the main flow path 20 and the bypass flow path 22 are separated by the partition wall 46c, and an electrostatic atomizer 18 that generates electrostatic mist is provided in the bypass flow path 22. Air that has not passed through and that has not been adjusted in temperature and humidity is supplied to the electrostatic atomizer 18. Thereby, safety is improved by effectively preventing the occurrence of condensation on the entire Peltier element 36 of the electrostatic atomization unit 30 during cooling. Moreover, electrostatic mist can be reliably generated during heating.

The bypass passage 22 includes a bypass suction pipe 22c, a casing 34, and a bypass outlet pipe 22d.
The bypass suction pipe 22c having one end connected to the bypass suction port 22a formed in the underframe side wall 46b is located on the left side (a direction substantially orthogonal to the left side wall 46b and substantially parallel to the front panel 4). The other end is connected to one end of the casing 34, and the bypass blow pipe 22 d having one end connected to the other end of the casing 34 extends downward and is bent to the right, and the other end is one of the rear guiders 48. It is connected to the bypass outlet 22b of the side wall 48b. Thus, by comprising a part of bypass channel 22 with casing 34, space saving can be achieved, and electrostatic atomization unit can be formed via bypass outlet pipe 22d by comprising these in series. The electrostatic mist can be reliably attracted from 18 toward the main flow path 20, and the electrostatic mist can be discharged into the air-conditioned room.

  The bypass suction port 22a is located between the prefilter 5 and the heat exchanger 6, that is, downstream of the prefilter 5 and upstream of the heat exchanger 6, and is sucked from the front suction port 2a and the upper suction port 2b. Since the dust contained in the air is effectively removed by the pre-filter 5, it is possible to prevent the dust from entering the electrostatic atomizer 18. Thereby, it can prevent effectively that dust accumulates on the electrostatic atomization unit 30, and can discharge | release electrostatic mist stably.

  As described above, in the present embodiment, the prefilter 5 serves as a prefilter for the electrostatic atomizer 18 and the main flow path 20, but this requires maintenance to clean only the prefilter 5. Since it is not necessary to care for each separately, the care can be simplified. Furthermore, in an air conditioner equipped with a pre-filter automatic cleaning device as will be described later, the pre-filter 5 does not require special care, and can be made maintenance-free.

  On the other hand, the bypass air outlet 22b is positioned in the vicinity of the air outlet 10 on the downstream side of the heat exchanger 6 and the indoor fan 8, and the electrostatic mist discharged from the bypass air outlet 22b rides on the air flow in the main flow path 20. It spreads and fills the entire room. The bypass outlet 22b is arranged on the downstream side of the heat exchanger 6 as described above. If the bypass air outlet 22b is arranged on the upstream side of the heat exchanger 6, since the heat exchanger 6 is made of metal, the electrostatic mist that is charged particles is This is because most of the heat exchanger 6 (approximately 80 to 90% or more) is absorbed. In addition, the bypass outlet 22b is arranged on the downstream side of the indoor fan 8. If the bypass outlet 22b is arranged on the upstream side of the indoor fan 8, turbulent flow exists in the indoor fan 8 and passes through the indoor fan 8. This is because a part (about 50%) of the electrostatic mist is absorbed in the process of air colliding with various parts of the indoor fan 8.

  In addition, the main flow path 20 side of one side wall 48b of the rear guider 48 provided with the bypass outlet 22b is given a predetermined speed to the air flow by the indoor fan 8, so that the main flow path 20 side of the side wall 48b is bypassed. A pressure difference is generated on the side of the path 22, a negative pressure portion in which the main channel 20 side is relatively low in pressure relative to the bypass channel 22, and air is attracted from the bypass channel 22 toward the main channel 20. Accordingly, the bypass blower fan 26 has a small capacity, and the bypass blower fan 26 may not be provided in some cases.

  Further, the bypass outlet pipe 22d is provided on the partition wall 46c (side wall 48b of the rear guider 48) so as to be directed in a direction substantially orthogonal to the air flow in the main channel 20 at the junction with the main channel 20 (bypass outlet 22b). It is connected. This is because the electrostatic atomization unit 30 generates the electrostatic mist by utilizing the discharge phenomenon as described above, so that the discharge sound is inevitably accompanied and the discharge sound has directivity. is there. Therefore, by connecting the bypass passage 22 to the front panel 4 substantially parallel to the front panel 4 at the junction of the bypass passage 22 and the main passage 20 (bypass outlet 22b), a person in front of the indoor unit or diagonally forward Thus, it is possible to reduce the noise by configuring so that the discharge sound is not directed as much as possible.

Further, as shown in FIG. 8, when the bypass outlet pipe 22 d is inclined with respect to the partition wall 46 c at the junction with the main flow path 20 and connected so as to be directed upstream with respect to the air flow in the main flow path 20, It is effective in reducing noise due to further discharge noise.

  In addition, even when the direction in which the bypass outlet pipe 22d is directed is connected to the downstream direction of the air flow in the main flow path 20, if the extension line does not come out from the outlet 10, it will occur. Since the amount of discharge sound that goes out directly from the air outlet 10 is small and does not directly enter the user's ear, a noise reduction effect can be achieved.

  As described above, the main flow path 20 and the bypass flow path 22 are separated by the partition wall 46 c, and the electrostatic atomizer 18 that generates electrostatic mist bypasses the heat exchanger 6 and communicates with the main flow path 20. Since the air that has not been passed through the heat exchanger 6 and has not been adjusted in temperature and humidity is supplied to the electrostatic atomizer 18 because it is provided in the path 22, the Peltier element 36 of the electrostatic atomization unit 30 is used during cooling. Effectively preventing the occurrence of dew condensation on the whole, safety is improved, and electrostatic mist can be reliably generated during heating, regardless of the operation mode of the air conditioner, that is, the season The electrostatic mist can be generated stably regardless of the above.

  Next, an air conditioner further provided with a prefilter automatic cleaning device having a suction device that sucks and removes dust adhering to the prefilter 5 will be described. The ventilation fan unit 16 will be described with reference to FIG. 9. Even if the ventilation fan unit 16 is dedicated to ventilation, the ventilation fan unit 16 also serves to supply air to a suction device provided in an indoor unit having a pre-filter automatic cleaning device. May be. The ventilation fan unit 16 shown in FIG. 9 is incorporated in the suction device 58 of the automatic prefilter cleaning device on the bypass flow path 22 side of the partition wall 46c. However, since the automatic prefilter cleaning device is already known, see FIG. While briefly explaining. The detailed structure and operation method of the pre-filter automatic cleaning device are not particularly limited.

  As shown in FIG. 10, the pre-filter automatic cleaning device 50 includes suction nozzles 52 that are slidable along the surface of the pre-filter 5, and the suction nozzles 52 are installed at the upper and lower ends of the pre-filter 5. The pair of guide rails 54 can smoothly move left and right while maintaining a very narrow gap with the prefilter 5, and dust adhering to the prefilter 5 is sucked and removed by the suction nozzle 52. Further, one end of a bendable suction duct 56 is connected to the suction nozzle 52, and the other end of the suction duct 56 is connected to a suction device 58 having a variable suction amount. Further, an exhaust duct 60 is connected to the suction device 58 and led out to the outside.

  Further, a belt (not shown) that is slidable along the suction nozzle 52 is wound around the suction nozzle 52 in the vertical direction. A slit-like nozzle opening having a length substantially equal to the vertical length of the filter 5 is formed, while a slit-like suction hole having a length of, for example, 1/4 of the vertical length of the prefilter 5 is formed in the belt. ing.

  The automatic prefilter cleaning device 50 configured as described above sequentially cleans the cleaning ranges A, B, C, and D of the prefilter 5 as necessary. When the range A is suction-cleaned, the belt is driven and the suction holes are driven. In the state where the position is fixed to the position of the range A, the suction nozzle 52 is driven from the right end to the left end of the prefilter 5 while sucking, whereby the horizontal range A of the prefilter 5 is suction-cleaned.

  Next, the belt is driven to fix the suction hole at a position in the range B, and the suction nozzle 52 is driven from the left end to the right end of the prefilter 5 while sucking in this state, so that the horizontal direction of the prefilter 5 is now achieved. A range B is suction-cleaned. Similarly, the areas C and D of the pre-filter 5 are also cleaned by suction.

Dust adhering to the pre-filter 5 and sucked by the suction nozzle 52 is discharged to the outside through the suction duct 56, the suction device 58, and the exhaust duct 60.

  Further referring to FIG. 9, an opening 62 is formed in the suction path of the suction device 58, and a damper 64 for opening and closing the opening 62 is provided. The ventilation fan unit 16 includes the damper 64. When the opening 62 is opened, it is used for ventilation. When suction cleaning is performed, the opening 62 is closed by a damper 64 and used for sucking dust from the suction hole of the belt. That is, the same suction device 58 is used to realize the suction cleaning function and the ventilation function.

  Although the exhaust duct 60 is not shown in FIG. 9, the exhaust duct 60 is connected to the exhaust port 58 a of the suction device 58.

  FIG. 11 shows an electrostatic atomizer 18A that does not have a casing 34, and this electrostatic atomizer 18A is incorporated in the indoor unit body 2 as shown in FIGS. The electrostatic atomizer 18 </ b> A is disposed at a position overlapping the ventilation fan unit 16 when viewed from the front or top surface of the indoor unit, and by the ventilation fan unit 16 in the vicinity of the opening 62 and the damper 64 of the ventilation fan unit 16. It is arranged in the part where the suction air flows.

  More specifically, the electrostatic atomizing device 18A of FIG. 11 includes an electrostatic atomizing unit 30 having a heat radiating portion 28 and a silencer 32 integrally attached, and the electrostatic atomizing unit 30 portion excluding the heat radiating portion 28; The silencer 32 is accommodated in each housing (unit housing 66 and silencer housing 68), and one end of the bypass blowing pipe 22d is connected to and communicates with the opening 68a of the silencer housing 68, and the other end of the bypass blowing pipe 22d is the main flow path. It is connected to 20 and communicates. In this case, the housing portion 22e separated from the main flow path 20 by the partition wall 46c and formed between the left side surface of the main body cover and provided with the ventilation fan unit 16, the electrostatic atomizer 18A and the like is the bypass described above. In addition to the suction pipe 22 c and the casing 34, the bypass blow pipe 22 d is also accommodated to constitute the bypass flow path 22.

  Thereby, the air sucked into the main body 2 through the prefilter 5 is sucked into the accommodating portion 22e from the bypass suction port 22a on the downstream side of the prefilter 5, and the direction of the airflow is the air flowing through the main channel 20 The indoor unit main body 2 flows in the accommodating portion 22e in parallel with the flow direction when viewed from the front. Thus, the heat radiating portion 28 is cooled by the air flowing through the housing portion 22e, and taken into the electrostatic atomizing unit 30 through an opening (not shown) formed in the unit housing 66.

  With this configuration, the space around the ventilation fan unit 16 that overlaps the ventilation fan unit 16 when viewed from the front or top surface of the indoor unit becomes the bypass flow path 22, and the ventilation fan unit 16, the electrostatic atomizer 18 </ b> A, etc. Space can be saved by effectively utilizing the accommodating portion 22e. In this configuration, the high voltage transformer 24 is disposed at an arbitrary portion in the housing portion 22e such as the ventilation fan unit 16 and the electrostatic atomizer 18A, and the bypass blower fan 26 is not provided.

  Further, the bypass flow path 22 is described in detail above by configuring the bypass flow path 22 so that the air flow flows in parallel with the air flow passing through the main flow path 20 as viewed from the front. Thus, since the main flow path 20 and the bypass flow path 22 can be branched with a simple configuration of the partition wall 46c, the bypass flow path 22 can be easily formed, and the number of parts can be reduced.

  Furthermore, by setting it as this structure, the prefilter of the electrostatic atomizer 18A and the prefilter of the main flow path 20 can be shared by the prefilter 5.

  Note that an opening 46d (see FIG. 9) may be formed in the vicinity of the lower portion of the frame 46 corresponding to the rear portion of the ventilation fan unit 16 so that a pipe (not shown) connecting the indoor unit and the outdoor unit can be drawn out. The bypass suction port 22a described above is one opening in the housing portion 22e formed in the partition wall 46c (the frame side wall 46b) in order to suck air into the housing portion 22e, and communicates with the outside of the indoor unit through the prefilter 5. However, in the opening 46d formed in the lower part of the underframe 46, the accommodating portion 22e is an opening that directly communicates with the outside of the indoor unit and sucks ambient air. In such a case, the accommodating portion 22e serves as a bypass flow path that also bypasses the prefilter 5. Accordingly, the air sucked into the electrostatic atomizer 18A flows from the opening 46d and does not pass through the prefilter 5, so that a separate prefilter for the electrostatic atomizer 18A is provided as necessary. Just do it. Further, even in the configuration in which the opening 46d is formed, the electrostatic atomizer 18A is disposed at a position overlapping the ventilation fan unit 16 when viewed from the front or top surface of the indoor unit, and the housing portion 22e is effectively used. Similarly, space saving can be achieved.

  As described above, the main flow path 20 side of the bypass outlet 22b is a negative pressure part that is attracted by the pressure difference generated by the indoor fan 8 being given a predetermined speed to the air flow. Even if the bypass blower fan 26 is not provided, the heat radiating portion 28 is cooled by the air drawn toward the main passage 20 from the accommodating portion 22e which is a bypass passage via the bypass outlet pipe 22d, and the electrostatic atomizing unit 30 is provided. The electrostatic mist generated by the above is attracted to the main channel 20 and can be discharged into the air-conditioned room. Further, since the heat dissipating part 28 is arranged in the vicinity of the opening 62 and the damper 64 as shown by the broken line area 18B, the air is sucked into the opening 62, so that it is also cooled by the air sucked by the ventilation fan unit 16. .

  As described above, according to the above configuration, the container 22e is provided with the electrostatic atomizer 18A that separates the main channel 20 and the container 22e serving as the bypass channel by the partition wall 46c and generates electrostatic mist. Therefore, air that has not passed through the heat exchanger 6 and has not been adjusted in temperature and humidity is supplied to the electrostatic atomizer 18A. Therefore, it is possible to effectively prevent the occurrence of condensation on the entire Peltier element 36 of the electrostatic atomization unit 30 during cooling, thereby improving safety and reliably generating electrostatic mist during heating. The electrostatic mist can be stably generated regardless of the operation mode of the air conditioner, that is, regardless of the season.

  Next, a configuration and attachment method for easily attaching the electrostatic atomizer 18A shown in FIG. 11 to the indoor unit shown in FIG. 12 will be described.

  14 and 15, the electrostatic atomizer 18 </ b> A has a two-divided configuration of the electrostatic atomization unit 30 described above and the discharge flow path portion 70 that forms the discharge section of the bypass flow path 22. FIG. 14 shows a state where the electrostatic atomization unit 30 and the discharge flow path unit 70 are separated, and FIG. 15 shows a state where the electrostatic atomization unit 30 and the discharge flow path unit 70 are connected.

  Further, as shown in FIGS. 16 and 17, the discharge flow path portion 70 further has a two-divided configuration, and includes a receiving tool 71 and the above-described bypass outlet pipe 22 d connected to the receiving tool 71. It is configured.

The receiving tool 71 has a side wall 71a having a substantially U shape in plan view and a receiving member 71b formed integrally with the side wall 71a. The receiving member 71b is a cylindrical fitting that protrudes downward. 71c, a silencer housing contact part 71d provided around the fitting part 71c, and an inclined part 71e formed on the opening side of the side wall 71a in the silencer housing contact part 71d. The inclined portion 71e rises inward from the opening side of the side wall 71a to the raised portion 71f, descends from the raised portion 71f, and is connected to the silencer housing contact portion 71d. In addition, a circular opening 71g into which a fitting part (described later) 22f of the bypass outlet pipe 22d is inserted is formed at the lower end part of the fitting part 71c, on the opposite side of the opening part at the lower end part of the side wall 71a. A claw portion 71h is formed.

  On the other hand, a plurality of claw portions (bypass blowing tube side fitting portions) 22f arranged in a circle with a predetermined interval are formed integrally with the flange 22g at one end portion of the bypass blowing tube 22d. An insertion portion 22h to be inserted into a bypass outlet 22b formed on the side wall 48b of the rear guider 48 is integrally formed with the flange 22i at the other end portion of the outlet pipe 22d.

  When the electrostatic atomizer 18A having the above-described configuration is attached to the indoor unit body 2, the discharge flow path section 70 is attached to the frame 46 and the electrostatic atomizer unit 30 is attached to the suction device 58, and then the suction device 58 is The electrostatic atomization unit 30 is assembled to the discharge flow path unit 70 by being attached to the frame 46.

  More specifically, when the discharge flow path portion 70 is attached to the frame 46, as shown in FIGS. 18 and 19, first, a receptacle is provided above the opening 46f formed in the lower wall portion 46e of the frame 46. 71 is disposed, and the bypass outlet pipe 22d is disposed below the opening 46f. Next, as shown by the arrow in FIG. 19, the circular opening formed in the fitting portion 71 c of the receiving tool 71 after loosely inserting the claw portion 22 f of the bypass outlet pipe 22 d into the opening 46 f of the base frame 46. It is made up of the receiver 71 and the bypass outlet pipe 22d by being fitted to 71g and further fitting and fixing the claw portion 71h of the receiver 71 to the inner wall 46g of the opening 46f of the base frame 46. The discharge flow path part 70 is assembled to the frame 46.

  20 to 22 show a state after the discharge flow path portion 70 is assembled to the underframe 46, and in this state, the peripheral edge of the circular opening 71g of the support 71 is the claw portion 22f of the bypass outlet pipe 22d. The flange 22g is also sandwiched between the peripheral edge of the circular opening 71g of the receiving member 71 and the lower wall portion 46e of the frame 46. Further, the claw portion 71h of the receiver 71 is fitted into the back wall 46g of the underframe 46, and the insertion portion 22h provided at the other end portion of the bypass outlet pipe 22d is a bypass formed on the side wall 48b of the rear guider 48. When the flange 22i comes into contact with the side wall 48b by being inserted into the air outlet 22b, the discharge flow path part 70 is fixed to the frame 46.

  On the other hand, as shown in FIG. 14A or 15A, the silencer housing 68 constituting the electrostatic atomizing unit 30 is integrally formed with a mounting portion 68b, and this mounting portion 68b. As shown in FIG. 23, the screw is fixed to the back side of the suction device 58 (the back side of the main body 2).

  FIG. 24 shows a state before the electrostatic atomization unit 30 fixed to the suction device 58 is attached to the discharge flow path unit 70 assembled to the base frame 46. As shown by the arrows in FIG. When the suction device 58 to which the electrostatic atomizing unit 30 is fixed is accommodated in a predetermined position of the accommodating portion 22e of the base frame 46, the silencer housing 68 constituting the electrostatic atomizing unit 30 is introduced into the side wall 71a of the receiver 71. Then, as shown in FIG. 12, FIG. 13 or FIG. 15, it is connected to the fitting portion 71c of the receiver 71, and the opening 68a of the silencer housing 68 and the bypass outlet pipe 22d communicate with each other.

Here, since the inclined portion 71e is provided on the opening side of the side wall 71a of the receiver 71, the inclined portion 71e and the side wall 71a serve as a guide for the silencer housing 68, and the fitting portion of the receiver 71. When the silencer housing 68 connected to 71c contacts the silencer housing contact portion 71d, the raised portion 71f formed inside the inclined portion 71a serves to hold the silencer housing 68, and the substantially U-shaped side wall 71a. And ridge 7
The connecting portion between the electrostatic atomization unit 30 and the discharge flow path portion 70 is sealed with 1f.

  Here, a high voltage is applied to the suction device 58 that exhausts the air sucked from the front suction port 2a and the upper suction port 2b to the outside, the electrostatic atomization unit 30 that generates electrostatic mist, and the electrostatic atomization unit 30. A high voltage transformer 24 to be supplied and a control unit 42 that controls the high voltage transformer 24 and the electrostatic atomizing unit 30 are integrally connected. Although this connection method was partially explained in the above description, the suction device 58 and the electrostatic atomizing unit 30 are detachably connected by a fastening means such as a screw, and the suction device 58 and the high voltage transformer 24 are controlled. The high voltage transformer 24 and the control unit 42 are connected to the unit 42 by a frame that extends from the suction device 58. Thus, the suction device 58, the electrostatic atomization unit 30, the high voltage transformer 24, and the control unit 42 are connected by connecting the suction device 58, the electrostatic atomization unit 30, the high voltage transformer 24, and the control unit 42. Can be removed from the air conditioner in one piece at a time, which can reduce the man-hours of inefficient work at high places and improve serviceability.

  The electrostatic atomization unit 30 is disposed on the rear side (seen as an indoor unit) of the suction device 58, the high voltage transformer 24 is disposed on the upper side of the suction device 58, and the indoor unit is the front side of the suction device 58. A control unit 42 is disposed on the front side of the main body 2. In this way, by disposing the suction device 58, the electrostatic atomization unit 30, the high voltage transformer 24, and the control unit 42 in a dispersed manner, the electrostatic neutralization device is provided in a slight space on the side surface of the indoor unit body 2. Can be incorporated. Here, the high voltage transformer 24 is directly affected by the heat generated by the heat radiating unit 28 due to the configuration in which the high voltage transformer 24 is not disposed above the heat radiating unit 28 constituting the electrostatic neutralization unit 30. Not receive.

  A guide rib 58b for the lead wire 26 is disposed on the outer periphery of the suction device 58, and the lead wire 26 that electrically connects the electrostatic atomizing unit 30, the high voltage transformer 24, and the control unit 42 is routed. ing. As a result, the lead wire 26 can be routed within the range of the width of the suction device 58, and space can be saved. In addition, since the control unit 42 is disposed on the front side of the air conditioner, the control unit 42 that performs the first operation check on the static elimination unit 30 is disposed on the front side of the air conditioner. The work on the part 42 can be easily performed, the number of man-hours for inefficient work at high places can be reduced, and the serviceability is improved.

  In addition, the electrostatic atomizing unit 30 and the high voltage transformer 24 are arranged in the vicinity of the periphery of the suction device 58, whereby the electrostatic atomizing unit 30 and the high voltage transformer 24 are electrically connected. Although the high voltage lead wire is connected as the lead wire 26 to be connected, the length of the high voltage lead wire can be shortened, and the influence of noise can be reduced. Furthermore, this high-voltage lead wire has a withstand voltage specification, so it is more expensive than other low-voltage lead wires, but the cost can be reduced by shortening the length of the high-voltage lead wire. Is possible.

  In addition, after the electrostatic atomization unit 30 and the discharge flow path part 70 are connected, the suction device 58 is fastened to the frame 46 via a plurality of attachment parts 58b (see FIGS. 23B and 24). Is detachably fixed. Accordingly, by loosening the fastening means such as screws, the suction device 58 that is relatively larger than the other components is removed from the base frame 46 of the air conditioner, so that the suction device 58, the electrostatic atomization unit 30, and the high voltage transformer are removed. 24 and the control unit 42 can be integrally removed from the air conditioner at a time, and the number of man-hours for inefficient work at high places can be reduced and the serviceability can be improved.

The air conditioner according to the present invention can reliably generate electrostatic mist and can easily assemble the electrostatic atomizer to the indoor unit. It is particularly useful as an air conditioner.

The perspective view of the indoor unit of the air conditioner based on this invention which shows the state which removed a part 1 is a schematic longitudinal sectional view of the indoor unit of FIG. The perspective view of the electrostatic atomizer provided in the indoor unit of FIG. The front view which shows a part of frame of the indoor unit of FIG. 1, and an electrostatic atomizer Schematic configuration diagram of electrostatic atomizer Block diagram of electrostatic atomizer The perspective view which shows the attachment state of the electrostatic atomizer with respect to an indoor unit main body The perspective view of the modification which shows the attachment state of the electrostatic atomizer with respect to an indoor unit main body 1 is a side view of the indoor unit in FIG. 1 showing the positional relationship between the electrostatic atomizer and the ventilation fan unit. The perspective view of the pre-filter automatic cleaning apparatus provided in the indoor unit of FIG. The perspective view which shows the modification of an electrostatic atomizer The side view of the indoor unit of FIG. 1 which shows the positional relationship of the electrostatic atomizer of FIG. 11, and a ventilation fan unit. End part front view of the indoor unit of FIG. 12 showing a state in which a part is removed The electrostatic atomization unit and discharge flow path part which comprise an electrostatic atomizer are shown, (a) is the front view (b) of an electrostatic atomization unit, The side view (c) is the discharge flow path part Front view (d) is a side view (A) Front view of electrostatic atomizer (b) Side view The receptacle which comprises a discharge flow-path part is shown, (a) is the front view, (b) is the side view, (c) is the top view, (d) is the cross section along line DD of (c). Figure The bypass blowing pipe which comprises a discharge flow-path part is shown, (a) is the front view, (b) is the side view, (c) is the top view Partial cross-sectional view of the main body frame showing the state before assembling the receptacle and the bypass outlet pipe The perspective view of a main body frame which shows the state before attaching a receptacle and a bypass blowing pipe Partially cutaway side view of an indoor unit showing a state after the receiving tool and the bypass outlet pipe are assembled End part front view of the indoor unit showing a state after removing a part after assembling the receptacle and the bypass outlet pipe Detailed view of part E in FIG. The suction device to which the electrostatic atomizing unit is attached is shown. (A) is a side view thereof (b) is a rear view thereof. The perspective view which shows the state before attaching the electrostatic atomization unit fixed to the suction device to the discharge flow path part assembled | attached to the base frame.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Indoor unit main body 2a Front suction port 2b Upper surface suction port 4 Front panel 5 Pre filter 6 Heat exchanger 8 Indoor fan 10 Outlet 12 Upper and lower blades 14 Left and right blades 16 Ventilation fan unit 18, 18A Electrostatic atomizer 20 Main flow path 22 Bypass flow path 22a Bypass inlet 22b Bypass outlet 22c Bypass inlet pipe 22d Bypass outlet pipe 22e Accommodating part 22f Claw part 22g Flange 22h Insertion part 22i Flange 24 High voltage transformer 26 Bypass air blower fan 28 Heat radiating part 30 Electrostatic atomizing unit 32 Silencer 34 Casing 36 Peltier element 36a Heat radiation surface 36b Cooling surface 38 Discharge electrode 40 Counter electrode 42 Control unit 44 Peltier drive power supply 46 Base frame 46a Rear wall 46b Side wall 46c Partition wall 46d Opening 46e Lower wall 46f Opening 46g Wall 48 Rear guider 48a Rear wall 48b Side wall 50 Prefilter automatic cleaning device 52 Suction nozzle 54 Guide rail 56 Suction duct 58 Suction device 58a Exhaust port 60 Exhaust duct 62 Opening portion 64 Damper 66 Unit housing 68 Silencer housing 68a Opening portion 68b Mounting portion 70 Discharge flow path portion 71 Receiving tool 71a Side wall 71b Receiving member 71c Fitting portion 71d Silencer housing contact portion 71e Inclined portion 71f Raised portion 71g Circular opening portion 71h Claw portion

Claims (4)

A suction port for sucking indoor air, a heat exchanger for exchanging heat with the air sucked from the suction port, a blower fan for transporting air heat-exchanged by the heat exchanger, and air blown from the blower fan An air conditioner provided with a blowout outlet, and a main flow path that connects the suction opening and the blowout opening, and generates an electrostatic mist, a suction device that exhausts air sucked from the suction opening to the outside An electrostatic atomization unit to be operated; a high voltage transformer that supplies a high voltage to the electrostatic atomization unit; and a control unit that controls the high voltage transformer and the electrostatic atomization unit. An air conditioner, wherein an electrostatic atomization unit, the high voltage transformer, and the control unit are connected. The air conditioner according to claim 1, wherein the suction device is detachably arranged with respect to the frame of the air conditioner. The air conditioner according to claim 1 or 2, wherein the electrostatic atomizing unit and the high voltage transformer are arranged in the vicinity of the periphery of the suction device. The air conditioner according to any one of claims 1 to 3, wherein the control unit is disposed on a front side of the air conditioner.