JP2010270960A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner having a filter cleaning function in which dust caught by a filter can be rinsed by cleaning liquid. <P>SOLUTION: The air conditioner includes the filter f, a heat exchanger 3, and a blower fan 4 at an air passage connecting a suction port 1 and an outlet 2, includes a drain pan 7 below the filter f and the heat exchanger 3, and includes a cleaning liquid duct 5 having an outflow hole for flowing out the cleaning liquid at an upper end of the filter f. The cleaning liquid duct 5 includes an induction member 6 for inducing the cleaning liquid to the filter f. A windward surface of the filter f is formed to be flat and is hydrophilized. Weft for carrying a catalyst and forming a filter net part is composed to have an inclination angle not more than 45 degrees with respect to warp. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air conditioner having an air cleaning function and an internal cleaning function.

  A conventional air conditioner having an air cleaning function and an internal cleaning function can automatically remove dust adhering to the filter without interrupting the operation of the air conditioner, as shown in FIG. In addition, the main body case a, the heat exchanger b disposed therein, the internal duct c, the blower d, the filter e for capturing dust, and the filter e at a predetermined first angle position and a second angle And a filter moving means f configured to oscillate between positions, and the filter e has a first surface g and a second surface h opposite to the first surface g. When e is disposed at the first angular position, the first surface g of the filter e receives air flow pressure, and when the filter e is disposed at the second angular position, the second surface h of the filter e is air flow. The dust attached to the filter e under the pressure of It is known in which so as to be (for example, Patent Document 1).

  Thereby, since the dust adhering to the filter e can be automatically removed without interrupting operation, continuous operation of the air conditioner can be realized so as not to impair comfortable air conditioning in the room. It was like that.

  However, it is configured to automatically remove dust adhering to the filter e, and is configured to swing the internal duct c and the filter e between a predetermined first angular position and a second angular position. Since the filter moving means f is provided and the dust adhering to the filter e is removed by receiving the air flow pressure, a part of the dust peeled off from the filter e is contained in the main body case a or the internal duct. There was a risk of flying into the inside of c and moving toward the blower d.

  Moreover, although not shown in figure, cleaning agent (liquid) is injected from the air suction side of an air conditioner, and the air flow path inside an air conditioner is flowed with the air flow in which this cleaning agent (liquid) is sucked. By this, what can wash | clean not only a heat exchanger but an air flow passage is known (for example, patent document 2).

  However, the cleaning agent (liquid) is sprayed from the air suction side, but the cleaning agent (liquid) is not sprayed onto the filter so that it can be cleaned. Even if a structure for injecting water is included, no consideration is given to a path for discharging the dirt washed away from the filter together with the cleaning agent (liquid) as a necessary structure.

JP 2008-196773 A JP-A-11-94493

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air conditioner having a filter cleaning function that allows dust captured by the filter to be washed away with a cleaning liquid. is there.

  In order to achieve the above-described object, the present invention has the following features.

  A filter, a heat exchanger, and a blower fan are provided in an air passage connecting the suction port and the blower outlet, a drain pan is provided below the filter and the heat exchanger, and an outflow hole through which the cleaning liquid flows out is provided at the upper end of the filter. The cleaning liquid duct includes a guide member that guides the cleaning liquid to the filter.

  The filter is characterized in that the windward surface is formed flat.

  The filter is characterized by being subjected to hydrophilic processing.

  The filter is characterized by carrying a catalyst.

  The filter includes a frame portion and a filter net portion, and the weft forming the filter net portion has an inclination angle of 45 ° or less with respect to the warp.

  ADVANTAGE OF THE INVENTION According to this invention, the air conditioner which has the washing | cleaning function of the filter which enabled the washing | cleaning liquid to wash away the dust captured by the filter can be provided.

It is explanatory drawing of the air conditioner which has the air purifying function by this invention, and an internal cleaning function, (A) is sectional drawing, (B) is a principal part enlarged view. BRIEF DESCRIPTION OF THE DRAWINGS It is principal part explanatory drawing of the air conditioner which has the air purifying function by this invention, and an internal cleaning function, (A) is a perspective view of the filter provided with the washing liquid duct, (B) is a figure which shows the internal structure of a washing liquid duct It is. It is principal part explanatory drawing of the air conditioner which has the air purifying function by this invention, and an internal cleaning function, (A) is a front view of a filter, (B) is an enlarged view which shows an example of a filter net, (C ) Is an enlarged view showing another example of the filter net. It is sectional drawing of the air conditioner by a prior art example.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated in detail as an Example based on an accompanying drawing.

  As shown in FIGS. 1 (A) and 1 (B) and FIGS. 2 (A) and 2 (B), the air conditioner according to the present invention has an air passage that connects the suction port 1 and the outlet 2. In addition, a filter f that captures dust contained in the air sucked from the suction port 1, and a large number of fins 3a in which thin plate-like metals (aluminum) are arranged at approximately equal intervals in the air flow direction, The heat exchanger 3 including the heat transfer tubes 3b orthogonal to the numerous fins 3a and the blower fan 4 are provided.

  The filter f includes a frame portion f1 and a filter net portion f2 including a warp f3 stretched on the inner side of the frame portion f1, and is provided so as to be detachable so as to face the suction port 1. .

  A drain pan 7 is provided below the lower end portion of the filter f and below the lower end portion of the heat exchanger 3. The drain pan 7 receives condensed water flowing down from the heat exchanger 3 and a cleaning liquid duct 5 described later. The cleaning liquid flows out of the air and flows along with dust while diffusing to the windward surface of the filter f.

  Condensed water received in the drain pan 7 and the cleaning liquid that has flowed down together with the dust are discharged to the outside by a drain hose (not shown) provided in the drain pan 7.

  The air sucked from the suction port 1 passes through the filter f and flows toward the heat exchanger 3 composed of a large number of fins 3a and heat transfer tubes 3b installed in the downstream air passage of the filter f. The heat exchanger 3 exchanges heat with the refrigerant flowing through the heat transfer tubes 3 b, and then blows out into the room from the blower outlet 2 through the blower fan 4.

  When the air sucked from the suction port 1 passes through the filter f, the fine dust that has not been completely captured by the filter f is the heat exchanger 3 installed in the air passage on the downstream side of the filter f. Although not attached to the drain pan 7 provided at the bottom of the lower end of the heat exchanger 3, it flows down together with the condensed water generated on the surface of the heat exchanger 3 during the cooling operation or the dehumidifying operation. It will be discharged outside by the hose.

  In addition, when the air sucked from the suction port 1 passes through the filter f, the filter f captures most of the dust contained in the air sucked from the suction port 1 so that the downstream side of the filter f It becomes possible to prevent dust from adhering to the wall surface of the air passage, the heat exchanger 3, the surface of the blower fan 4, and the like, so that sanitary air that does not contain dust is discharged from the blowout port 2. Can be blown into the room.

  In the vicinity of the upper end of the filter f, the dust trapped by the filter f is washed away into the drain pan 7, so that it is shown in FIGS. 1 (A) and 1 (B) and FIGS. 2 (A) and 2 (B). As described above, the cleaning liquid duct 5 for discharging the cleaning liquid is provided on the windward side behind the upper end of the filter f during operation of the air conditioner.

  The cleaning liquid duct 5 has a plurality of outflow holes 5a through which the cleaning liquid flows out, and is provided along the width direction of the filter f. During operation of the air conditioner, the cleaning liquid duct 5 passes from the plurality of outflow holes 5a to the upper end of the filter f. Since the cleaning liquid can flow out evenly over the entire width of the rear part, dust can be prevented from adhering to the filter f and washed away.

  In addition, it is possible to make it difficult for dust to adhere to the filter f by always allowing the cleaning liquid to flow out from the cleaning liquid duct 5 to the windward side behind the upper end of the filter f during the operation of the air conditioner.

  Thereby, during operation of the air conditioner, the cleaning liquid that has flowed out to the upper end portion of the filter f including the frame portion f1 and the filter net portion f2 includes the frame portion f1 and the filter net portion f2 other than the upper end portion of the filter f. It will flow down as it spreads throughout the entire area.

  The cleaning liquid uses, for example, functional water having a high effect on sterilization and deodorization such as ozone water to wash away dust trapped on the windward side of the filter f, clean the surface of the filter f, and remove the filter f. The clean conditioned air that has passed through and has been heat-exchanged by the heat exchanger 3 can be sent to the outlet 2 via the blower fan 4 and blown out from the outlet 2 to the air-conditioned room.

  Alternatively, in addition to ozone water, functional water such as electrolytic water or a chemical solution in which an antibacterial agent is dissolved may be used as the cleaning liquid, so that dust captured by the filter f may be decomposed and separated to be washed away.

  At this time, by preventing dust from adhering to the surface of the filter f, the resistance of the air flow passing through the filter f is prevented from increasing. Since deodorized clean air flows, the conditioned air blown into the room from the air outlet 2 without contaminating the heat exchanger 3, the blower fan 4, and the wall surface of the air passage leading to the air outlet 2 It eliminates germs and odors and can achieve comfortable air conditioning.

  The cleaning liquid duct 5 is provided with a large number of guide members 6 so as to face the filter f along the longitudinal direction of the cleaning liquid duct 5, and the cleaning liquid that has flowed out from the plurality of outflow holes 5 a has a large number of guide members 6. Thus, the cleaning liquid is not scattered and is smoothly guided to the windward side of the filter f.

  The guide member 6 is, for example, a large number of flexible string-shaped members or a large number of brush-shaped members, and as shown in FIG. 2 (B), a proximal end portion is provided in the vicinity of the plurality of outflow holes 5a. Is constructed so that the tip portion contacts the filter f, so that even if some misalignment occurs between the cleaning liquid duct 5 and the rear of the upper end portion of the filter f, a plurality of outflows are generated. The cleaning liquid flowing out from the hole 5a is accurately guided to the windward side behind the upper end of the filter f with which the tip of the guide member 6 is in contact.

  As a result, the cleaning liquid flowing out from the plurality of outflow holes 5a is smoothly and uniformly guided to the entire upper end portion of the filter f without being scattered, and dust is scattered while diffusing and flowing down to the windward surface of the entire filter f area. After washing and flowing into the drain pan 7, it is discharged to the outside by a drain hose (not shown).

  Note that when the dust is washed away from the windward surface of the filter f, since the windward surface of the filter f is formed flat, the dust to be washed away is not caught.

  In addition, the front-end | tip part of the guide member 6 is not necessarily comprised so that the filter f may be contacted, but it may flow out of the several outflow hole 5a by making it the structure which adjoined the surface of the upper end part back of the filter f. The cleaned liquid may be guided to the entire upper end portion of the filter f.

  At this time, the filter f has hydrophilicity so that the cleaning liquid uniformly guided to the upper end of the filter f can be allowed to flow down while diffusing to the entire surface of the filter f. A film of water enters the trapped dust, and the effect of floating and washing away the dust can be expressed.

  In addition, as shown in FIGS. 3A to 3C, the filter f has a weft thread (inclined thread) that forms the filter net part f2 constituting the filter f. In order to easily flow down along the weft yarn (inclined yarn), the warp yarn f3 (or vertical imaginary line) has an inclination angle θ smaller than 45 °.

  The weft yarn (inclined yarn) forming the filter net part f2 has a possibility that a part of the cleaning liquid drops from the weft yarn (inclined yarn) as it is larger than 45 ° with respect to the warp yarn f3 (or vertical imaginary line). By having an inclination angle θ of 45 ° or less, it is possible to prevent such dripping.

  As a result, the cleaning liquid uniformly guided behind the upper end of the filter f can be diffused over the entire surface of the filter f including the filter net part f2, and can be smoothly flowed down. As a result, a film of water enters under the dust trapped on the surface, and the effect of floating and washing away the dust is easily exhibited.

  The outflow amount of the cleaning liquid flowing out from the plurality of outflow holes 5a is not shown in correspondence with the amount of dust contained in the air sucked from the suction port 1, the air volume, the humidity, the size of the filter f, etc. Further, the adjustment may be made by opening and closing a water discharge valve provided in (the root of) the cleaning liquid duct 5.

  Further, the filter f carries, for example, a catalyst made of a photocatalyst (titanium dioxide) on the surface, and by installing a light source that irradiates the photocatalyst (titanium dioxide) with ultraviolet rays, dirt on the surface of the filter f can be decomposed. It may be.

  The active energy source of a catalyst made of a photocatalyst (titanium dioxide) is not limited to being irradiated with ultraviolet rays. For example, ozone water used as a cleaning liquid is also an energy source for activation, so that the surface of the filter f The trapped dust can be decomposed more effectively.

  As described above, according to the configuration of the present invention, the cleaning liquid duct 5 that flows out the cleaning liquid is provided on the windward side behind the upper end of the filter f, and the cleaning liquid is disposed in the vicinity of the outflow hole 5a of the cleaning liquid duct 5. Is provided, so that the cleaning liquid can be guided to the windward side of the upper end of the filter f without being scattered.

  As a result, the trapped dust can be washed away with the cleaning liquid spread over the entire surface of the filter f.

DESCRIPTION OF SYMBOLS 1 Intake port 2 Outlet 3 Heat exchanger 3a Fin 3b Heat exchanger tube 4 Blower fan 5 Washing liquid duct 5a Outflow hole 6 Guidance member 7 Drain pan f Filter f1 Frame part f2 Filter net part f3 Warp thread

Claims (5)

  A filter, a heat exchanger, and a blower fan are provided in an air passage connecting the suction port and the blower outlet, a drain pan is provided below the filter and the heat exchanger, and an outflow hole through which the cleaning liquid flows out is provided at the upper end of the filter. An air conditioner comprising: a cleaning liquid duct having an induction member that guides the cleaning liquid to the filter.   The air conditioner according to claim 1, wherein the filter has a flat surface on the windward side.   The air conditioner according to claim 1, wherein the filter is subjected to hydrophilic processing.   The air conditioner according to claim 1, wherein the filter carries a catalyst.   5. The filter according to claim 1, wherein the filter includes a frame portion and a filter net portion, and the weft forming the filter net portion has an inclination angle of 45 ° or less with respect to the warp yarn. The air conditioner described in Crab.

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