JP5320213B2

JP5320213B2 - Air conditioner

Info

Publication number: JP5320213B2
Application number: JP2009186980A
Authority: JP
Inventors: 正徳秋元; 勉井本
Original assignee: Hitachi Appliances Inc
Current assignee: Hitachi Global Life Solutions Inc
Priority date: 2009-08-12
Filing date: 2009-08-12
Publication date: 2013-10-23
Anticipated expiration: 2029-08-12
Also published as: JP2011038717A

Description

本発明は空気調和機に係り、特に静電霧化方式により室内空間に微細水滴を放出する空気調和機に関する。 The present invention relates to an air conditioner, and more particularly to an air conditioner that discharges fine water droplets into an indoor space by an electrostatic atomization method.

ペルチェ素子の低温部で結露させた結露水に高電圧を印加して、帯電した微細水滴を室内空間に放出する静電霧化装置を備えた空気調和機が知られている（例えば、特許文献１（段落番号〔００３７〕，第３図）参照）。このような帯電した微細水滴を室内空間に放出することにより、室内の空気を脱臭したり、使用者に対して肌の保湿機能を付与することができる。 There is known an air conditioner including an electrostatic atomizer that applies a high voltage to condensed water condensed at a low temperature part of a Peltier element and discharges charged fine water droplets into an indoor space (for example, Patent Documents). 1 (see paragraph number [0037], FIG. 3). By discharging such charged fine water droplets into the indoor space, the indoor air can be deodorized and a skin moisturizing function can be imparted to the user.

ここで、特許文献１では、ペルチェ素子の低温部で結露させた結露水を、保水材を介して、先端部が尖った円錐形状の霧化部を有する霧化電極に供給し、この霧化部の先端部に高電圧を印加することにより、霧化電極から帯電した微細水滴を放出させる。 Here, in patent document 1, the dew condensation water condensed by the low temperature part of the Peltier device is supplied to the atomization electrode which has the cone-shaped atomization part where the front-end | tip part sharpened via the water retention material, and this atomization is carried out. By applying a high voltage to the tip of the part, charged fine water droplets are discharged from the atomizing electrode.

しかしながら、特許文献１に記載の霧化電極を用いる場合、帯電した微細水滴の放出量を増加させるためには、霧化電極の本数を増加させる必要があるが、霧化電極を増やすことはコストアップにつながるとともに、霧化電極の設置スペースが増大して静電霧化装置が大型化してしまう。 However, when using the atomization electrode described in Patent Document 1, it is necessary to increase the number of atomization electrodes in order to increase the discharge amount of the charged fine water droplets, but increasing the number of atomization electrodes is a cost. As a result, the installation space for the atomizing electrode is increased and the electrostatic atomizer is increased in size.

特開２００８−１９０８１９号公報JP 2008-190819 A

本発明は上記課題を解決するものであり、安価な構成により、静電霧化装置から放出される微細水滴の室内空間への放出量を増大させる空気調和機を提供することにある。 This invention solves the said subject, and it is providing the air conditioner which increases the discharge | release amount to the indoor space of the fine water droplet discharge | released from an electrostatic atomizer by an inexpensive structure.

本発明に係る空気調和機は、空気吸込口及び空気吹出口を有する筐体と、前記筐体内に配置された熱交換器と、前記熱交換器と熱交換した室内空気を前記空気吹出口より送風する送風ファンと、室内空間に微細水滴を放出する静電霧化装置と、を備え、前記静電霧化装置は、空気中の水分を結露させるペルチェ素子と、前記結露した水分が前記ペルチェ素子から供給される吸水材と、前記吸水材に電圧を印加する電圧印加装置と、を有し、
前記吸水材は、前記電圧印加装置により電圧が印加されることにより微細水滴を放出する放出部と、前記ペルチェ素子から供給された水分を前記放出部に供給する水搬送部と、から構成され、前記放出部は、前記水搬送部と対向する側に、それぞれ直方体で形成されて複数の角部及び複数の稜を有する複数の凸部を備え、複数の前記凸部は、一方向に向かって平面状に配置され、前記吸水材は、前記水搬送部、前記放出部、及び複数の前記凸部により一体として形成され、前記水搬送部は他の吸水材を介さずに前記ペルチェ素子から水分が供給される。

An air conditioner according to the present invention includes a casing having an air inlet and an air outlet, a heat exchanger disposed in the casing, and indoor air exchanged with the heat exchanger from the air outlet. A blower fan that blows air, and an electrostatic atomizer that discharges fine water droplets into an indoor space. A water absorbing material supplied from the element, and a voltage applying device for applying a voltage to the water absorbing material,
The water absorbing material is composed of a discharge part that discharges fine water droplets when a voltage is applied by the voltage application device, and a water transport part that supplies moisture supplied from the Peltier element to the discharge part, The discharge portion includes a plurality of convex portions each formed in a rectangular parallelepiped and having a plurality of corner portions and a plurality of ridges on a side facing the water conveyance portion, and the plurality of convex portions are directed in one direction. The water-absorbing material is integrally formed by the water transport portion, the discharge portion, and the plurality of convex portions, and the water transport portion receives moisture from the Peltier element without any other water-absorbing material. Is supplied.

本発明によれば、安価な構成により、静電霧化装置から放出される微細水滴の室内空間への放出量を増大させる空気調和機を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the air conditioner which increases the discharge | release amount to the indoor space of the fine water droplet discharge | released from an electrostatic atomizer with an inexpensive structure can be provided.

空気調和機の構成図。The block diagram of an air conditioner. 室内機の側断面図。The sectional side view of an indoor unit. 静電霧化装置の模式図。The schematic diagram of an electrostatic atomizer. 静電霧化装置の拡大図。The enlarged view of an electrostatic atomizer. 吸水材の斜視図。The perspective view of a water absorbing material. 吸水材の形状図。The shape figure of a water absorbing material. 吸水材の形状図。The shape figure of a water absorbing material. 吸水材の形状図。The shape figure of a water absorbing material. 吸水材の拡大図。The enlarged view of a water absorbing material. 吸水材の側面図。The side view of a water absorbing material. 帯電微細水放出能力の評価結果。Evaluation results of the ability to discharge charged fine water. アンモニア脱臭試験結果。Ammonia deodorization test results.

以下、本発明の実施例を図面に基づき説明する。まず、本実施例の空気調和機１の全体構成を図１及び図２を用いて説明する。図１は空気調和機１の構成図、図２は図１の室内機２の側断面図である。 Embodiments of the present invention will be described below with reference to the drawings. First, the whole structure of the air conditioner 1 of a present Example is demonstrated using FIG.1 and FIG.2. FIG. 1 is a configuration diagram of the air conditioner 1, and FIG. 2 is a side sectional view of the indoor unit 2 of FIG.

図１において、空気調和機１は、室内機２と室外機３とを接続配管５で繋いで構成され、室内を空気調和する。室内機２の筐体９には送風ファン１４，フィルタ１５，１５′，熱交換器１６，露受皿，吹出風路２０に位置する上下風向板１８及び左右風向板１９等の内部構造体が取り付けられる。ここで、送風ファン１４としては、貫流ファンを用いることができる。筐体９の内側に取り付けられた送風ファン１４等の内部構造体は、化粧枠８により室内機２内に内包される。化粧枠８の前面には前面パネル７を備える。前面パネル７の下方には運転状況を表示する表示部１１と、別体のリモコン１２からの赤外線の操作信号を受ける受光部１０とが配置される。 In FIG. 1, an air conditioner 1 is configured by connecting an indoor unit 2 and an outdoor unit 3 with a connection pipe 5, and air-conditions the room. Internal structures such as a blower fan 14, filters 15, 15 ′, a heat exchanger 16, a dew tray, an up / down wind direction plate 18 and a left / right wind direction plate 19 are attached to the housing 9 of the indoor unit 2. It is done. Here, a cross-flow fan can be used as the blower fan 14. Internal structures such as the blower fan 14 attached to the inside of the housing 9 are enclosed in the indoor unit 2 by the decorative frame 8. A front panel 7 is provided on the front surface of the decorative frame 8. Below the front panel 7, a display unit 11 that displays an operation status and a light receiving unit 10 that receives an infrared operation signal from a separate remote controller 12 are arranged.

図２において、送風ファン１４を作動することにより空気は白抜き矢印のように流れる。ここで、空気中の塵埃はフィルタ１５，１５′に捕集される。フィルタ１５，１５′は、吸い込まれた室内空気中に含まれる塵埃を取り除くためのものであり、熱交換器１６の吸込側を覆うように配置される。送風ファン１４は、空気吸込口６から吸い込んで熱交換器１６と熱交換した室内空気を、吹出風路２０を通過し、空気吹出口１３から送風するように室内機２内の中央に配置される。ここで、吹出風路２０は送風ファン１４から空気吹出口１３につながる風路であり、吹出風路上面９１，吹出風路下面９２及び吹出風路側壁９３，９４から構成される。また、送風ファン１４下流の吹出風路に位置し複数の羽根５１から構成される左右風向板１９により室内に送風される気流が左右方向に風向制御される。熱交換器１６は送風ファン１４の吸込側に配置され、略逆Ｖ字状に形成される。 In FIG. 2, the air flows as shown by white arrows by operating the blower fan 14. Here, dust in the air is collected by the filters 15 and 15 '. The filters 15 and 15 ′ are for removing dust contained in the sucked indoor air, and are arranged so as to cover the suction side of the heat exchanger 16. The blower fan 14 is disposed in the center of the indoor unit 2 so that the room air sucked from the air suction port 6 and heat-exchanged with the heat exchanger 16 passes through the blowout air passage 20 and is blown from the air blower outlet 13. The Here, the blowout air passage 20 is an air passage connected from the blower fan 14 to the air blower outlet 13, and is composed of the blowout air passage upper surface 91, the blowout air passage lower surface 92, and the blowout air passage side walls 93 and 94. Further, the airflow blown into the room is controlled in the left-right direction by the left-right wind direction plate 19 that is located in the blowout air passage downstream of the blower fan 14 and is configured by a plurality of blades 51. The heat exchanger 16 is disposed on the suction side of the blower fan 14 and is formed in a substantially inverted V shape.

次に、静電霧化装置２１について図３，図４を用いて説明する。図３は静電霧化装置の構成を示す模式図、図４は静電霧化装置の拡大図、図５は本実施例の吸水材の斜視図である。 Next, the electrostatic atomizer 21 is demonstrated using FIG. 3, FIG. FIG. 3 is a schematic diagram showing the configuration of the electrostatic atomizer, FIG. 4 is an enlarged view of the electrostatic atomizer, and FIG. 5 is a perspective view of the water-absorbing material of this embodiment.

静電霧化装置２１は、電圧発生装置３０、電圧発生装置３０の高電圧端子３１から伸びる導電体３２、空気中の水分を結露させる水源部４０、及び結露した水分が水源部から供給される給水材３３等から構成される。吸水材は、電圧発生装置３０により電圧が印加されることにより微細水滴を放出する放出部３３ａと、ペルチェ素子から供給された水分を放出部に供給する水搬送部３３ｂとから構成される。吸水材３３の水搬送部３３ｂに水源部４０から水分５０を供給するとともに、電圧発生装置３０で発生させた−３ｋＶ〜−６ｋＶの高電圧を吸水材３３に印加することで、吸水材３３の先端部である放出部３３ａから帯電した微細水滴を放出させることができる。一方、図３に示すように、静電霧化装置２１にイオン電極３５を設けることもできる。この場合も同様に、電圧発生装置３０で発生させた−３ｋＶ〜−６ｋＶの高電圧をイオン電極３５に印加することで、イオン電極３５からイオンを放出させることができる。このような、静電霧化装置２１から帯電微細水滴やイオンを放出することにより、室内空間等を脱臭したり、肌の保湿効果を奏することができる。 The electrostatic atomizer 21 is supplied with a voltage generator 30, a conductor 32 extending from a high voltage terminal 31 of the voltage generator 30, a water source unit 40 that condenses moisture in the air, and the condensed moisture is supplied from the water source unit. It is composed of a water supply material 33 and the like. The water absorbing material includes a discharge portion 33a that discharges fine water droplets when a voltage is applied by the voltage generation device 30, and a water transport portion 33b that supplies moisture supplied from the Peltier element to the discharge portion. While supplying the water 50 from the water source unit 40 to the water transport unit 33b of the water absorbing material 33 and applying a high voltage of −3 kV to −6 kV generated by the voltage generating device 30 to the water absorbing material 33, the water absorbing material 33 The charged fine water droplet can be discharged from the discharge portion 33a which is the tip portion. On the other hand, as shown in FIG. 3, an ion electrode 35 can be provided in the electrostatic atomizer 21. In this case as well, ions can be released from the ion electrode 35 by applying a high voltage of −3 kV to −6 kV generated by the voltage generator 30 to the ion electrode 35. By discharging the charged fine water droplets and ions from the electrostatic atomizer 21, it is possible to deodorize the indoor space and the like and to provide a skin moisturizing effect.

水源部４０は、ペルチェ素子４１，冷却板４２及び放熱板４４を備える。ペルチェ素子４１の低温部に接して配置された冷却板４２を室内空気の露点温度以下に冷却することで、室内空気の水分を結露させる。冷却板４２に結露させた水分５０は時間経過とともに水滴として成長し、自重により下方へ垂れ落ち、繊維で構成される吸水材３３の水搬送部３３ｂへ染み込む。水搬送部３３ｂへ染み込んだ水分は吸水材３３の他方に位置するに放出部３３ａへ供給される。放出部３３ａに供給された水分は、放出部３３ａに電圧が印加されることにより、放出部３３ａの先端部から帯電した微細水滴となって放出される。 The water source unit 40 includes a Peltier element 41, a cooling plate 42, and a heat radiating plate 44. The cooling plate 42 disposed in contact with the low temperature portion of the Peltier element 41 is cooled below the dew point temperature of the room air, so that moisture in the room air is condensed. Moisture 50 condensed on the cooling plate 42 grows as water droplets with the passage of time, droops downward due to its own weight, and soaks into the water transport portion 33b of the water absorbent 33 composed of fibers. Moisture soaked into the water transport portion 33b is supplied to the discharge portion 33a while being located on the other side of the water absorbing material 33. The water supplied to the discharge part 33a is discharged as charged fine water droplets from the tip of the discharge part 33a when a voltage is applied to the discharge part 33a.

静電霧化による部屋の脱臭作用や肌の保水効果を室内空間の広範囲で発揮させるには、帯電微細水滴を室内空間により多く放出することが必要となる。帯電微細水滴を室内空間により多く放出させるためには、例えば特許文献１に記載の霧化電極を多数備えて帯電微細水滴の放出量を増大させることが考えられるが、特許文献１に記載の霧化電極を多数備えることは、静電霧化装置が複雑化・大型化するとともに、コストアップとなる。また、霧化電極の本数を増加させて帯電微細水滴の放出量を増大させるためには増加させた霧化電極に十分な結露水を供給する必要が生じるが、結露水の供給を増大させるためには、水源部４０（ペルチェ素子４１，冷却板４２、及び放熱板４４）や結露水を霧化電極に導くための給水材を大型化する必要があり、静電霧化装置が複雑化・大型化やコストアップにつながる。このため、特許文献１に記載の霧化電極の本数を増加させることなく、安価な構成により、微細水滴の放出量を増加させることができる静電霧化装置が必要となる。 In order to exhibit the deodorizing action of the room by the electrostatic atomization and the water retention effect of the skin in a wide range of the indoor space, it is necessary to discharge more charged fine water droplets into the indoor space. In order to release a large amount of charged fine water droplets in the indoor space, for example, it is conceivable to increase the discharge amount of the charged fine water droplets by providing a large number of atomizing electrodes described in Patent Document 1, but the fog described in Patent Document 1 Providing a large number of electrodes makes the electrostatic atomizer more complex and larger, and increases the cost. Further, in order to increase the number of atomized electrodes and increase the discharge amount of charged fine water droplets, it is necessary to supply sufficient condensed water to the increased atomized electrodes, but in order to increase the supply of condensed water For this, it is necessary to increase the size of the water source 40 (Peltier element 41, cooling plate 42, and heat radiating plate 44) and the water supply material for guiding the condensed water to the atomizing electrode, and the electrostatic atomizing device is complicated. This leads to an increase in size and cost. For this reason, the electrostatic atomizer which can increase the discharge | release amount of a fine water droplet with an inexpensive structure is required, without increasing the number of the atomization electrodes of patent document 1. FIG.

そこで、本実施例における空気調和機は、空気吸込口及び空気吹出口を有する筐体と、筐体内に配置された熱交換器と、熱交換器と熱交換した室内空気を空気吹出口より送風する送風ファンと、室内空間に微細水滴を放出する静電霧化装置と、を備え、静電霧化装置は、空気中の水分を結露させるペルチェ素子と、結露した水分がペルチェ素子から供給される吸水材と、吸水材に電圧を印加する電圧印加装置と、を有し、吸水材は、電圧印加装置により電圧が印加されることにより微細水滴を放出する放出部と、ペルチェ素子から供給された水分を放出部に供給する水搬送部と、から構成され、放出部は、複数の角部又は複数の稜を有する。吸水材は電圧印加装置により電圧が印加されることにより微細水滴を放出する放出部を備えるとともに、この放出部は複数の角部又は複数の稜を有する。吸水材の一部である放出部の角部又は稜から微細水滴が放出されるので、特許文献１に記載の霧化電極を増加させることなく（特許文献１に記載の霧化電極自体を必要とすることなく）、安価な構成により、静電霧化装置から放出される微細水滴の室内空間への放出量を増大させることができる。 Therefore, the air conditioner in the present embodiment blows air from the air outlet through the casing having the air inlet and the air outlet, the heat exchanger arranged in the casing, and the indoor air exchanged with the heat exchanger. An electrostatic atomizer that discharges fine water droplets into the indoor space, and the electrostatic atomizer is supplied with Peltier elements that condense moisture in the air, and the condensed moisture is supplied from the Peltier elements. A water-absorbing material and a voltage applying device that applies a voltage to the water-absorbing material. The water-absorbing material is supplied from a Peltier element, a discharge portion that discharges fine water droplets when a voltage is applied by the voltage applying device. A water transport unit that supplies the water to the discharge unit, and the discharge unit has a plurality of corners or a plurality of edges. The water absorbing material includes a discharge portion that discharges fine water droplets when a voltage is applied by a voltage application device, and the discharge portion has a plurality of corners or a plurality of edges. Since fine water droplets are discharged from the corners or ridges of the discharge part that is a part of the water-absorbing material, the atomization electrode described in Patent Document 1 is not increased (the atomization electrode itself described in Patent Document 1 is necessary) However, with an inexpensive configuration, it is possible to increase the amount of fine water droplets released from the electrostatic atomizer into the indoor space.

つまり、本実施例においては、霧化電極を用いずに吸水材３３から直接帯電微細水を放出させる。通常、ペルチェ素子で空気中の水分を結露させその水分を帯電微細水化する場合、特許文献１に記載のように霧化電極に先端に電界を集中させ、この霧化電極先端から帯電微細水を放出させる。しかしながら、発明者の検討によると、図５に示すような複数の角部又は複数の稜を有する吸水材３３自体に高電圧を印加することにより、この角部や稜に高電圧の電界が集中し、この角部や稜から多量の微細水滴が放出されることが確認された。このように、本発明に係る静電霧化装置によれば、特許文献１に記載の針状の霧化電極を用いることなく、安価な構成で、静電霧化装置から放出される微細水滴の室内空間への放出量を増大させることができる。 That is, in this embodiment, the charged fine water is directly discharged from the water absorbing material 33 without using the atomizing electrode. Normally, when moisture in the air is condensed by the Peltier element to make the water charged fine water, an electric field is concentrated on the tip of the atomizing electrode as described in Patent Document 1, and the charged fine water is discharged from the tip of the atomizing electrode. To release. However, according to the inventor's study, by applying a high voltage to the water absorbing material 33 itself having a plurality of corners or a plurality of edges as shown in FIG. 5, a high-voltage electric field is concentrated on the corners and edges. It was confirmed that a large amount of fine water droplets were discharged from the corners and ridges. Thus, according to the electrostatic atomizer which concerns on this invention, the fine water droplet discharge | released from an electrostatic atomizer with an inexpensive structure, without using the acicular atomization electrode of patent document 1 The amount of release into the indoor space can be increased.

本実施例の静電霧化装置及び吸水材の具体的構造を図４及び図５を用いて説明する。本実施例においては、吸水材３３の放出部３３ａを吹出風路側壁９３から吹出風路２０に突出するように配置させ、高電圧印加装置に高電圧を印加することにより、吹出風５５に接する吸水材３３の放出部３３ａの先端角部６０から帯電微細水を放出させる。霧化電極を用いずに吸水材３３から直接帯電微細水を放出させることにより霧化電極の増加（及び霧化電極自体）が不要となりコストを抑制した静電霧化装置２１を提供することができる。 Specific structures of the electrostatic atomizer and the water-absorbing material of the present embodiment will be described with reference to FIGS. 4 and 5. In the present embodiment, the discharge portion 33a of the water absorbing material 33 is disposed so as to protrude from the blowout air passage side wall 93 to the blowout air passage 20, and a high voltage is applied to the high voltage application device to contact the blowout air 55. The charged fine water is discharged from the tip corner portion 60 of the discharge portion 33a of the water absorbing material 33. It is possible to provide an electrostatic atomizing device 21 in which an increase in the number of atomizing electrodes (and the atomizing electrode itself) is not required by discharging charged fine water directly from the water absorbing material 33 without using the atomizing electrode, thereby reducing costs. it can.

ここで、ペルチェ素子及び吸水材の水搬送部３３ｂは吹出風路側壁９３に対して吹出風路２０と反対側に配置されるとともに、水搬送部３３ｂはペルチェ素子の冷却板４２で生成される水滴が自重で垂れ落ちる位置に配置される。また、吸水材は水搬送部３３ｂから吹出風路２０方向に向かって延伸し、吸水材の放出部３３ａは吹出風路側壁９３から吹出風路に突出するように配置される。 Here, the water conveyance part 33b of the Peltier element and the water absorbing material is disposed on the side opposite to the blowout air path 20 with respect to the blowout air passage side wall 93, and the water conveyance part 33b is generated by the cooling plate 42 of the Peltier element. It is placed at a position where water drops hang down under its own weight. Further, the water absorbing material extends from the water conveying portion 33b toward the blowing air passage 20, and the water absorbing material discharge portion 33a is disposed so as to protrude from the blowing air passage side wall 93 into the blowing air passage.

そして、吸水材３３の放出部３３ａは、水搬送部３３ｂと対向する側に凸部を備えることにより、放出部３３ａに複数のその角部又は稜を有する凹凸形状が形成される。本実施例においては、凸部を複数の直方体とする。放出部３３ａの凸部となる直方体を構成する複数の角部又は稜に高電圧による電界が集中し、この角部又は稜から微細水滴が放出されるので、安価な構成で、帯電微細水を多量に放出させることができる。 And the discharge | emission part 33a of the water absorption material 33 is provided with a convex part in the side facing the water conveyance part 33b, and the uneven | corrugated shape which has the some corner | angular part or ridge is formed in the discharge | release part 33a. In this embodiment, the convex portion is a plurality of rectangular parallelepipeds. The electric field due to the high voltage is concentrated on a plurality of corners or ridges constituting the rectangular parallelepiped serving as the convex portion of the discharge portion 33a, and fine water droplets are discharged from the corners or ridges. Can be released in large quantities.

また、吸水材３３は水搬送部３３ｂ，放出部３３ａ、及び凸部により一体として形成される。また、水搬送部は他の吸水材を介さずにペルチェ素子から水分が供給される。このように構成することで、特許文献１に記載のような霧化電極を別途必要とすることなく、安価な構成で、帯電微細水を放出させることができる。 Moreover, the water absorbing material 33 is integrally formed by the water transport part 33b, the discharge part 33a, and the convex part. Further, the water transport unit is supplied with moisture from the Peltier element without passing through another water absorbing material. By comprising in this way, charged fine water can be discharge | released by an inexpensive structure, without requiring the atomization electrode as described in patent document 1 separately.

吸水材３３の凸部の形状としては、底面が多角形となる錐体や、底面が多角形となる角柱としてもよい。このように形成することで、凸部に複数の角部又は稜を形成することができる。具体的には、吸水材３３の凸部の形状として、図６のように尖り形状を形成したものや、図７のブラシ状に形成したもの、図８の尖り形状を多数形成したものにしても、角部又は稜に高電圧電界が集中し、帯電微細水を放出することができる。 As a shape of the convex part of the water absorbing material 33, it is good also as a pyramid whose bottom face becomes a polygon, or a prism which a bottom face becomes a polygon. By forming in this way, a plurality of corners or ridges can be formed on the convex portion. Specifically, as the shape of the convex portion of the water absorbing material 33, a shape having a sharp shape as shown in FIG. 6, a shape having a brush shape in FIG. 7, or a shape having a large number of sharp shapes in FIG. However, the high voltage electric field concentrates on the corners or ridges, and the charged fine water can be discharged.

吹出風路２０に突出せず帯電微細水を放出しない吸水材３３の水搬送部位３３ｂは、吹出風路２０風路に突出する帯電微細水の吸水材３３の放出部３３ａよりも断面積を小さくする。水搬送部位３３ｂの体積を小さくすることで、室内湿度が低くペルチェ素子４１で結露させられる水分が少ない時でも効率よく水分を放出部３３ａに供給することができる。 The water conveyance portion 33b of the water absorbing material 33 that does not protrude into the blowing air passage 20 and does not discharge charged fine water has a smaller cross-sectional area than the discharge portion 33a of the water absorbing material 33 that protrudes into the blowing air passage 20 air passage. To do. By reducing the volume of the water transfer portion 33b, it is possible to efficiently supply moisture to the discharge portion 33a even when the indoor humidity is low and the moisture condensed by the Peltier element 41 is small.

水分を効率よく水搬送部位３３ｂから放出部３３ａへ供給する構造としては、図９の吸水材３３拡大写真線図に示すように、吸水材３３を構成する繊維は方向性がなく絡まった状態又は複数方向に交差した状態とすることが好ましい。例えば、吸水材３３ｂの長手方向に繊維が一方向に纏まって構成された状態の場合、放出部３３ａへ水分を浸透させる速さは早くなるが、先端角部６０への広がりが低下するおそれがある。本実施例に記載のように、吸水材３３を構成する繊維は方向性がなく絡まった状態又は複数方向に交差した状態とすることにより、吸水材３３全体にすばやく水分を浸透させることができ、低湿度環境でペルチェ素子で結露させられる水分が少ない場合でも吸水材の放出部３３ａへ水分を供給することができる。 As a structure for efficiently supplying moisture from the water transport portion 33b to the discharge portion 33a, the fibers constituting the water absorbent 33 are not directional and entangled as shown in the enlarged photograph diagram of FIG. It is preferable to have a state intersecting in a plurality of directions. For example, in the state where the fibers are arranged in one direction in the longitudinal direction of the water absorbing material 33b, the speed at which moisture is permeated into the discharge portion 33a is increased, but the spread to the tip corner portion 60 may be reduced. is there. As described in the present embodiment, the water constituting the water absorbing material 33 can be quickly infiltrated with moisture into the entire water absorbing material 33 by making the fiber entangled without any directivity or crossing in a plurality of directions. Even when there is little moisture condensed by the Peltier element in a low humidity environment, the moisture can be supplied to the water absorbing material discharge portion 33a.

また、吸水材３３の表面は有機バインダーを含浸させ、繊維の毛羽立ちを抑制することが好ましい。毛羽立ちがある場合、繊維の末端部に高電圧電界が分散し、吸湿材３３の先端角部６０に電界が集中しずらくなり、帯電微細水の放出量が低下する傾向にある。従って、本実施例においては、吸水材３３を構成する繊維を有機バインダーで固めることで吸水材３３表面の繊維による毛羽立ちを抑制し、毛羽立ち部への電界の分散を防止し、吸水材３３の放出部３３ａの角部や稜に高電圧による電界が集中しやすくなるので、多量の帯電微粒子水を放出させることができる。 Moreover, it is preferable that the surface of the water absorbing material 33 is impregnated with an organic binder to suppress fiber fluffing. When fuzz is present, the high-voltage electric field is dispersed at the end of the fiber, the electric field is less likely to concentrate at the tip corner 60 of the moisture absorbent 33, and the discharge amount of charged fine water tends to decrease. Therefore, in the present embodiment, the fibers constituting the water absorbing material 33 are hardened with an organic binder to suppress fuzz due to fibers on the surface of the water absorbing material 33, to prevent electric field from being distributed to the fuzzed portion, and to release the water absorbing material 33. Since the electric field due to the high voltage tends to concentrate on the corners and ridges of the portion 33a, a large amount of charged fine particle water can be discharged.

また、吸水材３３の水搬送部位３３ｂは水分蒸発抑制壁６１ａ及び６１ｂを備える。このように、吸水材水搬送部位の少なくとも２面以上を覆うことで表面からの水分蒸発を抑制することが可能となり、ペルチェ素子４１で得られる結露水分を有効に帯電微細水として放出させることができる。 Moreover, the water conveyance site | part 33b of the water absorbing material 33 is provided with the moisture evaporation suppression walls 61a and 61b. As described above, it is possible to suppress moisture evaporation from the surface by covering at least two surfaces of the water-absorbing material water conveyance site, and to effectively release condensed moisture obtained by the Peltier element 41 as charged fine water. it can.

また、図１０に示すように、吸水材３３の表面をポリエチレンフィルム等の水透過性の小さいフィルム３６を溶着してもよい。吸水材３３の表面をポリエチレンフィルム等の水透過性の小さいフィルム３６を溶着することにより水分蒸発を抑制することができる。 As shown in FIG. 10, a film 36 having a small water permeability such as a polyethylene film may be welded to the surface of the water absorbing material 33. Water evaporation can be suppressed by welding the surface of the water absorbing material 33 with a film 36 having a small water permeability such as a polyethylene film.

本実施例に基づき、帯電微粒水滴の放出能力を評価した結果について説明する。図１１は帯電微細水放出能力の評価結果、図１２はアンモニア脱臭試験結果である。室内機２に搭載された静電霧化装置２１の吸水材３３に蒸留水１ｇを滴下し、吸水材３３に−６ｋｖを印加して、吸水材３３に接した霧化電極から帯電微細水を放出させる。このとき、蒸留水滴下後の電圧印加をしない状態の静電霧化装置２１の重量を初期重量として、１時間−６ｋＶ電圧印加後に帯電微細水が放出された分だけ重量が減少した静電霧化装置２１との重量差を帯電微細水の放出量として計測した。図１１及び図１２において、「霧化電極ピン形状」とは微細水滴の放出部を５本の霧化電極とした場合であり、「吸水材凹凸形状」とは微細水滴の放出部を本実施例に係る放出部３３ａとした場合、具体的には、霧化電極５本と同スペース内に収まる図５に記載の放出部３３ａ（凸部形状が直方体／凸部が４個／角部が１６箇所）とした場合である。 Based on this example, the result of evaluating the discharge ability of charged fine water droplets will be described. FIG. 11 shows the evaluation result of the charged fine water releasing ability, and FIG. 12 shows the ammonia deodorization test result. 1 g of distilled water is dropped on the water absorbing material 33 of the electrostatic atomizer 21 mounted in the indoor unit 2, -6 kv is applied to the water absorbing material 33, and charged fine water is discharged from the atomizing electrode in contact with the water absorbing material 33. Release. At this time, with the initial weight as the weight of the electrostatic atomizer 21 in a state where no voltage is applied after the dropwise addition of distilled water, the electrostatic fog whose weight is reduced by the amount of discharge of charged fine water after the voltage application of -6 kV for 1 hour. The difference in weight with the oxidizer 21 was measured as the discharge amount of charged fine water. 11 and 12, the “atomization electrode pin shape” is a case where the discharge portion of the fine water droplet is five atomization electrodes, and the “water absorbent material uneven shape” is the implementation of the discharge portion of the fine water droplet. In the case of the discharge portion 33a according to the example, specifically, the discharge portion 33a shown in FIG. 5 that fits in the same space as the five atomizing electrodes (the shape of the convex portion is a rectangular parallelepiped / the number of convex portions is four / the corner portion is 16 places).

図１１の帯電微細水放出能力の評価結果からわかるように、「霧化電極ピン形状」の帯電微細水放出量を１００としたとき、「吸水材凹凸形状」の帯電微細水放出量は２１０（２.１倍）となった。従って、本実施例に開示の静電霧化装置とすることにより、霧化電極を使用せず、簡易な構造で帯電微細水の放出量を増大させることができることが確認された。 As can be seen from the evaluation result of the charged fine water discharge ability in FIG. 11, when the charged fine water discharge amount of the “atomized electrode pin shape” is 100, the charged fine water discharge amount of the “water absorbing material uneven shape” is 210 ( 2.1 times). Therefore, it was confirmed that the discharge amount of charged fine water can be increased with a simple structure without using an atomization electrode by using the electrostatic atomizer disclosed in the present embodiment.

また、図１２はアンモニア脱臭試験結果を開示している。この試験では、１ｍ³ＢＯＸ内にアンモニアガスを注入して初期濃度３０ppmとし、６０分後のアンモニア濃度の減衰を検知管で測定した。測定の結果より、「霧化電極ピン形状」では６０分後のアンモニア残存率は２２％であるのに対し、「吸水材凹凸形状」では２０分で同じ残存率にすることができ、「吸水材凹凸形状」では脱臭速度が向上することが確認された。従って、本実施例に開示の静電霧化装置とすることにより、霧化電極を使用せず、簡易な構造で帯電微細水の放出量を増大させられるとともに、帯電微細水滴が有する脱臭作用等が発揮されることが確認された。 FIG. 12 discloses the ammonia deodorization test results. In this test, ammonia gas was injected into 1 m ³ BOX to obtain an initial concentration of 30 ppm, and attenuation of ammonia concentration after 60 minutes was measured with a detector tube. From the measurement results, the residual rate of ammonia after 60 minutes is 22% in the “atomized electrode pin shape”, whereas the same residual rate can be obtained in 20 minutes in the “water-absorbing material uneven shape”. It was confirmed that the deodorizing speed was improved in the “material uneven shape”. Therefore, by using the electrostatic atomizer disclosed in the present embodiment, the discharge amount of charged fine water can be increased with a simple structure without using an atomizing electrode, and the deodorizing action of the charged fine water droplets, etc. It was confirmed that

１空気調和機
２室内機
３室外機
５接続配管
６空気吸込み口
７前面パネル
８化粧枠
９筐体
１０受光部
１１表示部
１２リモコン
１３空気吹出し口
１４送風ファン
１５，１５′ フィルタ
１６熱交換器
１８上下風向板
１９左右風向板
２０吹出風路
２１静電霧化装置
３０高電圧発生装置
３１高電圧端子
３２導電体
３３吸水材
３３ａ吸水材放出部
３３ｂ吸水材水搬送部位
３４霧化電極
３５イオン電極
３６フィルム
４０水源部
４１ペルチェ素子
４２冷却板
５０結露水分
５５吹出風
６０吸水材先端角部
６１ａ，６１ｂ水分蒸発抑制壁
６２吸水材繊維
９３吹出風路側壁 DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Indoor unit 3 Outdoor unit 5 Connection piping 6 Air suction inlet 7 Front panel 8 Cosmetic frame 9 Case 10 Light-receiving part 11 Display part 12 Remote control 13 Air blowing outlet 14 Blower fan 15, 15 'Filter 16 Heat exchanger 18 Upper and lower wind direction plates 19 Left and right wind direction plates 20 Blowing air flow path 21 Electrostatic atomizer 30 High voltage generator 31 High voltage terminal 32 Conductor 33 Water absorbent 33a Water absorbent release 33b Water absorbent water transport part 34 Atomizing electrode 35 Ion Electrode 36 Film 40 Water source part 41 Peltier element 42 Cooling plate 50 Condensation moisture 55 Blowing air 60 Water absorbing material tip corners 61a, 61b Water evaporation suppression wall 62 Water absorbing material fiber 93 Blowing air channel side wall

Claims

A housing having an air inlet and an air outlet, a heat exchanger disposed in the housing, a blower fan for blowing indoor air heat-exchanged with the heat exchanger from the air outlet, and an indoor space An electrostatic atomizer that discharges fine water droplets,
The electrostatic atomizer includes a Peltier element that condenses moisture in the air, a water absorbing material to which the condensed moisture is supplied from the Peltier element, and a voltage application device that applies a voltage to the water absorbing material. And
The water absorbing material is composed of a discharge part that discharges fine water droplets when a voltage is applied by the voltage application device, and a water transport part that supplies moisture supplied from the Peltier element to the discharge part,
The discharge portion includes a plurality of convex portions formed in a rectangular parallelepiped shape on the side facing the water conveyance portion, and having a plurality of corner portions and a plurality of ridges,
The plurality of convex portions are arranged in a planar shape in one direction,
The water absorbing material is integrally formed by the water transport portion, the discharge portion, and the plurality of convex portions,
The water conveyance unit air conditioner, wherein Rukoto water is supplied from the Peltier element without passing through the other water absorbent material.

In Claim 1, the one end of the above-mentioned water conveyance part and the above-mentioned Peltier device are arranged on the opposite side to a blowout air way to a blowout air way side wall,
The air conditioner, wherein the convex portion, which is one end of the discharge portion, is disposed so as to protrude from the side wall of the blowout air passage to the blowout air passage.

3. The air conditioner according to claim 1, wherein a cross-sectional area of the discharge unit is smaller than a cross-sectional area of the water transport unit.

4. The air conditioner according to claim 1, wherein the fibers constituting the water-absorbing material are in an intertwined state with no directionality or in a state of intersecting a plurality of directions.