WO2015049915A1

WO2015049915A1 - Air conditioner

Info

Publication number: WO2015049915A1
Application number: PCT/JP2014/070045
Authority: WO
Inventors: ゆい公文; 大塚　雅生
Original assignee: シャープ株式会社
Priority date: 2013-10-04
Filing date: 2014-07-30
Publication date: 2015-04-09
Also published as: JP6116698B2; CN105518393A; CN105518393B; JPWO2015049915A1; MY177936A

Abstract

This air conditioner is provided with a housing (1) which has a blowoff port (18) opening into a room and blows off air, and with a fan which is housed in the housing (1) and delivers air towards the blowoff port (18). The blowoff port (18) comprises inner walls which define the flow path of the air. The air conditioner is provided with a vortex component generating unit (75) which is disposed protruding from the inner walls to generate a vortex component on the side of the main current of the airflow delivered by the fan to the blowoff port (18). This configuration allows providing an air conditioner which improves dust suction speed while avoiding decreases in dust collection capacity.

Description

Air conditioner

This invention relates generally to an air conditioner, and more specifically to an air conditioner having an air purification function.

Regarding a conventional air conditioner, for example, Japanese Patent Application Laid-Open No. 2009-142356 discloses that a large amount of ions are generated from an outlet provided in the lower front portion of the main body to suppress the propagation of ticks and fungi near the floor. An air purifier for the purpose of exhibiting a sterilizing function has been disclosed (Patent Document 1).

In the air cleaner disclosed in Patent Document 1, an upper air outlet and a lower air outlet that blow out negative ions together with purified air are provided on the top surface and the lower front portion of the main body, respectively. Air containing negative ions blown into the room from the upper outlet and the lower outlet forms two circulation areas that circulate from above and below and merge near the center.

JP 2009-142356 A

As disclosed in the above patent document, an air conditioner having an air purification function is used. In such an air conditioner, how quickly air can be circulated is important. Examples of the air cleaning performance include dust collection ability and dust absorption speed.

Dust collection capacity is an index that indicates how quickly the air in the entire room can be cleaned, and is mainly influenced by the air volume. In order to inhale as much room air as possible, a certain amount of air flow is required. Generally, the larger the air volume, the higher the dust collection performance. The dust collection capability is a performance that is emphasized when the air conditioner is continuously used.

On the other hand, the dust suction speed is an index indicating how efficiently the air far away in the room is sucked in, and is mainly influenced by the wind speed. For example, by measuring the time it takes for dust near the facing wall to reach the vicinity of the inlet of the air conditioner, it is possible to know how quickly air far away in the room can be sucked in, and the dust collection capacity In combination with air cleaning performance. The dust absorption capability is a performance that is emphasized when the air conditioner is used instantaneously.

If you want to clean the indoor air as soon as possible, that is, if you want to increase the dust absorption speed, it is necessary to increase the reach of the airflow, and to increase the wind speed. Therefore, when the air velocity is increased, if the opening area of the air outlet is reduced, the pressure loss increases and the air volume decreases. That is, if the dust suction speed is increased, the dust collecting ability is reduced.

Therefore, an object of the present invention is to solve the above-described problems, and to provide an air conditioner that improves the dust collection speed while suppressing a decrease in dust collection capability.

An air conditioner according to one aspect of the present invention includes a housing having a blowout opening that opens into a room and blows out air, and a fan that is housed in the housing and sends out air toward the blowout opening. The outlet includes an inner wall that defines a flow path through which air flows. The air conditioner includes a vortex component generator that is provided so as to protrude from the inner wall and generates a vortex component on the main stream side of the air flow sent out to the outlet by the fan.

Also preferably, the opening surface of the outlet has an elongated shape having a longitudinal direction and a short direction when viewed from the front. The vortex component generation unit is provided at at least one of both ends of the outlet in the longitudinal direction.

Also preferably, the vortex component generating portion is provided such that the ridge line has a convex shape from the inner wall side from which the vortex component generating portion protrudes toward the flow path side through which air flows.

Also preferably, the air outlet includes a louver that makes the area of the opening surface of the air outlet variable. The vortex component generator is provided in the louver.

An air conditioner according to another aspect of the present invention includes a housing having a blowout opening that opens into a room and blows out air, and a fan that is housed in the housing and blows out air toward the blowout opening. As a blowout flow from the blowout port to the room, a blowout flow including a main flow of the air flow sent to the blowout port by the fan and a vortex flow having a swirl component flowing along the main flow is generated.

According to the present invention, it is possible to provide an air conditioner that can improve the dust suction speed while suppressing a decrease in the dust collecting ability.

It is a perspective view at the time of seeing the air conditioner in Embodiment 1 of this invention from the front side. It is a perspective view at the time of seeing the air conditioner in FIG. 1 from the back side. It is sectional drawing which shows the internal structure of the air conditioner in FIG. In the air conditioner in FIG. 1, it is sectional drawing which shows the closed state of a back surface outlet. In the air conditioner in FIG. 1, it is sectional drawing which shows the full open state of a back surface outlet. In the air conditioner in FIG. 1, it is sectional drawing which shows the half-open state of a back surface outlet. In the air conditioner in FIG. 1, it is a side view which shows the half open state of a back surface outlet. In the air conditioner in FIG. 1, it is a perspective view which shows the full open state of a back surface outlet when the opening surface of a back surface outlet is seen from the front. In the air conditioner in FIG. 1, it is a perspective view which shows the full open state of a back surface outlet when the opening surface of a back surface outlet is seen from the diagonal direction. In the air conditioner in FIG. 1, it is a perspective view which shows the half open state of a back surface outlet when the opening surface of a back surface outlet is seen from the front. In the air conditioner in FIG. 1, it is a perspective view which shows the half open state of a back surface outlet when the opening surface of a back surface outlet is seen from the diagonal direction. In the air conditioner in FIG. 1, it is a top view which shows the louver provided in the back surface outlet. It is a front view which shows the louver in FIG. It is a perspective view which shows the louver in FIG. In the air conditioner in FIG. 1, it is a figure which represents typically the blowing flow from a back surface outlet to a room | chamber interior. It is a figure which expands and shows the range enclosed with the dashed-two dotted line XVI in FIG. In the air conditioner in FIG. 1, it is a figure which represents typically the velocity potential of the air flow blown from the back surface outlet. In the air conditioner for comparison, it is a diagram schematically representing the velocity potential of the air flow blown out from the rear outlet. In the air conditioner in Embodiment 2 of this invention, it is a perspective view which shows the full open state of a back surface outlet when the opening surface of a back surface outlet is seen from the front. In the air conditioner in FIG. 19, it is a perspective view which shows the full open state of a back surface outlet when the opening surface of a back surface outlet is seen from the diagonal direction. In the air conditioner in FIG. 19, it is a perspective view which shows the half open state of a back surface outlet when the opening surface of a back surface outlet is seen from the front. In the air conditioner in FIG. 19, it is a perspective view which shows the half open state of a back surface outlet when the opening surface of a back surface outlet is seen from the diagonal direction. In the air conditioner in FIG. 19, it is a top view which shows the louver provided in the back surface outlet. It is a front view which shows the louver in FIG. It is a perspective view which shows the louver in FIG. In the air conditioner in FIG. 19, it is a figure which represents typically the blowing flow from a back surface outlet to a room | chamber interior. In Example 1, it is a graph (when fully opened) which shows the relationship between the rotation speed of a ventilation fan, and an air volume. In Example 1, it is a graph (at the time of 45 mm) which shows the relationship between the rotation speed of a ventilation fan, and an air volume. In Example 1, it is a graph (at the time of 35 mm) which shows the relationship between the rotation speed of a ventilation fan, and an air volume. In Example 1, it is a graph (at 30 mm) which shows the relationship between the rotation speed of a ventilation fan, and an air volume. In Example 2, it is a graph (at the time of full open) which shows the relationship between the rotation speed of a ventilation fan, and a wind speed. In Example 2, it is a graph (at 45 mm) which shows the relationship between the rotation speed of a ventilation fan, and a wind speed. In Example 2, it is a graph (at 35 mm) which shows the relationship between the rotation speed of a ventilation fan, and a wind speed. In Example 2, it is a graph (at 30 mm) which shows the relationship between the rotation speed of a ventilation fan, and a wind speed. In Example 3, it is a graph (when fully opened) which shows the relationship between an air volume and a dust suction speed. In Example 3, it is a graph (at 45 mm) which shows the relationship between an air volume and a dust suction speed. In Example 3, it is a graph (at 35 mm) which shows the relationship between an air volume and a dust suction speed. In Example 3, it is a graph (at 30 mm) which shows the relationship between an air volume and a dust suction speed. In Example 4, it is a graph (at the time of 5.7 m < ³ > / min) which shows the relationship between the opening length of a back surface outlet, and dust suction speed. In Example 4, it is a graph (at the time of 3.5 m < ³ > / min) which shows the relationship between the opening length of a back surface outlet, and a dust suction speed. In Example 5, it is a graph which shows the relationship between an air volume and a noise. In Example 5, it is a graph which shows the relationship between an air volume and the power consumption of a ventilation fan. In Example 6, it is a graph which shows the relationship between x / L and a dust suction speed. In Example 6, it is a graph which shows the relationship between x / L and dust collection ability. In Example 6, it is a graph which shows the relationship between x / L and air cleaning power. In the air conditioner in Embodiment 3 of this invention, it is a perspective view which shows the full open state of a back surface outlet when the opening surface of a back surface outlet is seen from the front. In the air conditioner in FIG. 46, it is sectional drawing which shows the fully open state of a back surface outlet.

Embodiments of the present invention will be described with reference to the drawings. In the drawings referred to below, the same or corresponding members are denoted by the same reference numerals.

(Embodiment 1)
1 is a perspective view of an air conditioner according to Embodiment 1 of the present invention as viewed from the front side. FIG. 2 is a perspective view when the air conditioner in FIG. 1 is viewed from the back side. FIG. 3 is a cross-sectional view showing the internal structure of the air conditioner in FIG.

1 to 3, an air conditioner 500 in the present embodiment includes a vertical rectangular parallelepiped housing 1. The air conditioner 500 is installed on the floor in a room having a wall and a floor so that the back side of the housing 1 faces the wall.

The air conditioner 500 is equipped with an air conditioning operation for deodorizing an indoor odor installed therein, an air conditioning operation for collecting indoor dust, dust, pollen, etc., positive ions and negative ions (hereinafter simply referred to as ions) that are charged particles. ) And air conditioning operation to humidify the room.

Inside the housing 1, a first ventilation path 10, a second ventilation path 20, and a control chamber 90 are provided so as to be separated from each other.

The first ventilation path 10 is further divided by a partition wall 14 in the vertical direction and a partition wall 15 in the oblique rear direction. The filter housing chamber 11 on the rear side (back side) of the partition wall 14 and the two

partition walls

14, 15 are provided. It has a humidification chamber 12 located between them and an air supply chamber 13 on the front side (front side) of the partition wall 15. A rear panel 16 having a plurality of air inlets 17 is detachably attached to the rear surface of the housing 1. The filter housing chamber 11 communicates with the outside through a plurality of air inlets 17 provided in the rear panel 16. The air supply chamber 13 communicates with the outside through a rear outlet 18 that opens to the top surface of the housing 1. The humidification chamber 12 communicates with both the filter housing chamber 11 and the air supply chamber 13 through openings provided in the lower portions of the partition wall 14 and the partition wall 15.

In the filter housing chamber 11, a deodorizing filter 31 and a dust collecting filter 32 are stacked. The deodorizing filter 31 is formed by, for example, dispersing and holding activated carbon in a non-woven fabric, and acts to adsorb and remove odorous components during ventilation. The dust collection filter 32 is, for example, a known HEPA (High Efficiency Particulate Air) filter, and functions to collect and remove fine dust contained in the air. The deodorizing filter 31 and the dust collecting filter 32 are each integrated into a rectangular frame made of synthetic resin, and are fitted into a filter housing chamber 11 provided on the front side of the rear panel 16.

The blower fan 4 is, for example, a sirocco fan, and includes an impeller 40 and a fan motor 41 that drives the impeller 40. The fan motor 41 is fixed to the wall surface constituting the air supply chamber 13. The impeller 40 is fixed to the output end of the fan motor 41 protruding into the air supply chamber 13, and is disposed so as to face the openings provided in the lower portions of the

partition walls

14 and 15. The impeller 40 of the blower fan 4 is rotated by driving a fan motor 41. When the impeller 40 rotates, air is introduced into the filter housing chamber 11 through the air inlet 17 provided in the rear panel 16 as indicated by an arrow in FIG. The air introduced into the filter storage chamber 11 flows forward in the filter storage chamber 11, is sucked into the impeller 40 through the humidification chamber 12, and is turned upward to be guided into the air supply chamber 13. . The air flows obliquely backward in the air supply chamber 13 and is sent out through the rear outlet 18 at the end of the air supply chamber 13.

Thus, the filter storage chamber 11, the humidification chamber 12, and the air supply chamber 13 constitute the first ventilation path 10 in which the air flow described above is generated according to the operation of the blower fan 4. The deodorizing filter 31 and the dust collecting filter 32 are located on the upstream side of the first ventilation path 10, and the odorous components of the outside air introduced into the filter housing chamber 11 through the intake port 17 are removed by the passage of the deodorizing filter 31. Then, the air passes through the dust collection filter 32 and becomes clean air from which dust is removed, and is sent out through the rear outlet 18 at the end of the air supply chamber 13.

The air conditioner according to the present embodiment has a humidifying function, and is provided in the humidifying chamber 12 (that is, between the dust collection filter 32 and the blower fan 4) in order to humidify the air flowing through the first ventilation path 10. The humidification unit 5 is provided.

The humidification unit 5 includes a humidification filter unit 50 and a water tank 55. The humidifying filter unit 50 is configured to accommodate and hold a humidifying filter 52 inside a holding frame 51 having an annular shape. The humidifying filter 52 is a sheet made of a material having a high moisture content and allowing ventilation, such as a nonwoven fabric. The humidifying filter 52 is folded in a bellows shape so as to increase a contact area with the ventilation flowing from the rear side toward the front side. It is accommodated inside the holding frame 51 with its width direction along the direction of ventilation.

The water tank 55 is a dish-shaped container with an open top, and is placed inside the humidifying chamber 12 on the front side of the dust collection filter 32 by being fitted into the guide portion 19 provided on the bottom plate of the housing 1. Two holding rollers 51 (not shown) are configured to rotatably support the holding frame 51 of the humidifying filter unit 50. The water tank 55 can be pulled out from one side surface of the housing 1 by sliding along the guide part 19 together with the humidifying filter part 50. A wide tank receiver 56 is connected to the end of the water tank 55 on the drawer side, and the water supply tank 6 is detachably provided on the tank receiver 56.

The water supply tank 6 is a rectangular parallelepiped tank having a water tap at one end, and is mounted on the tank receiver 56 in an inverted posture with the water tap side facing downward. The faucet incorporates a known constant water level valve. The constant water level valve is opened when the water supply tank 6 is attached to the tank receiver 56, and acts to send water stored in the water supply tank 6 to the water tank 55 and store water at a constant water level inside the water tank 55. .

A driven gear 51 a is attached along the outer periphery of the holding frame 51 of the humidifying filter unit 50. The driven gear 51a and the drive gear 58a disposed on the upper side of the humidifying filter unit 50 are meshed with each other. When the drive gear 58a is rotated by the electric motor 58 disposed on the upper side of the humidifying filter unit 50, the driving force is transmitted to the driven gear 51a, and the holding frame 51 and the humidifying filter 52 are rotated. As the humidifying filter 52 rotates, the portion immersed in the water tank 55 sequentially moves in the circumferential direction to suck up water, and the entire humidifying filter 52 is in a state containing moisture. As a result, the air that has passed through the humidifying filter 52 is humidified. On the other hand, when the humidifying filter 52 is not rotating, the air that has passed through the humidifying filter 52 hardly absorbs moisture.

Further, an ion generator 35 is disposed in the air supply chamber 13 from the blower fan 4 to the rear outlet 18. The ion generator 35 is fixed to the wall surface 13a of the air supply chamber 13, and has a needle-like discharge electrode and an induction electrode arranged opposite to the discharge electrode. The discharge electrode to which a high voltage is applied causes corona discharge. To generate positive and negative ions. The discharge electrode of the ion generator 35 is exposed to the air supply chamber 13, and when the ion generator 35 is driven, the ions are released from the blower fan 4 toward the rear outlet 18 and include ions. The air is sent out from the rear outlet 18 into the room. The ions released into the room kill or inactivate fungi, viruses, allergens, etc., and decompose substances that cause malodors (for example, organic compounds such as acetaldehyde).

A rough lattice-like guard portion 70 is provided at the rear outlet 18. The guard part 70 is provided in the upstream of an air flow rather than the louver 7 mentioned later. The guard portion 70 is provided adjacent to the louver 7 on the upstream side of the air flow.

Since the front and rear wall surfaces 13a and 13b in the air supply chamber 13 are arranged so as to incline from the front lower side to the rear upper side, the air sent into the room through the rear outlet 18 is an air conditioner. Ascends along the wall on the back of the wall and flows away from the wall along the ceiling. Since the air flowing along the ceiling descends in the vicinity of the wall on the opposite side of the room, the air containing ions can reach a relatively far place from the air conditioner. In addition, the air descending near the wall on the opposite side of the room flows along the floor to the phrase of the air conditioner and circulates in the room.

On the other hand, the second ventilation path 20 is positioned above the first ventilation path 10 and in front of the housing 1, and is partitioned by a curved partition wall 21 that continues to the top surface of the housing 1 and a front cover 1 a of the housing 1. Provided in the area. The front cover 1a is provided with a rectangular intake port 22, and a front outlet 26 is provided between the upper portion of the front cover 1a and the top surface of the housing. A blower fan 24 is provided in the second ventilation path 20, and the second ventilation path 20 is divided into an intake chamber 20 a below the blower fan 24 and an air supply chamber 20 b above the blower fan 24. The The intake chamber 20 a communicates with the outside through the intake port 22, and the air supply chamber 20 b communicates with the outside through the front blowing port 26.

The intake chamber 20 a is provided with a rough lattice-like guard portion 23, and the prefilter 8 is detachably attached to the guard portion 23. The pre-filter 8 includes a filter part 81 in which a net-like filter with relatively fine mesh is held by a holding frame, and a handle part 82 that forms a part of the second ventilation path 20 and serves as a handle at the time of attachment / detachment. It is configured. The prefilter 8 collects and removes coarse dust contained in the air flowing into the intake chamber 20a.

The blower fan 24 provided in the second ventilation path 20 includes a fan motor (not shown) and a fan 242. The fan motor rotationally drives the fan 242 around the left and right axis. The fan 242 is, for example, a cross-flow fan having a multi-blade impeller having a cylindrical shape having a plurality of blades whose outer edge side is displaced in the rotation direction with respect to the rotation center. The fan 242 is arranged so that the direction of the rotation center is the left-right direction of the air conditioner. The fan motor is fixed inside the housing 1. The fan 242 is fixed to the output shaft of the fan motor and rotates by driving the fan motor. As the fan 242 rotates, as indicated by an arrow in FIG. 3, indoor air is sucked into the second ventilation path 20 through the intake port 22, and the sucked air is supplied from the intake chamber 20a to the air supply chamber. It flows to 20b and is sent out indoors through the front outlet 26.

As in the first ventilation path 10, an ion generator 25 is disposed in the second ventilation path 20. The ion generator 25 is fixed to the wall surface of the partition wall 21 between the blower fan 24 and the front outlet 26, and has a needle-like discharge electrode and an induction electrode arranged to face the discharge electrode. A discharge electrode to which a high voltage is applied causes corona discharge to generate positive and negative ions. When the ion generator 25 is driven, ions are released from the blower fan 24 toward the front outlet 26, and the air containing the ions is sent out from the front outlet 26 into the room. The front outlet 26 is provided with a wind direction restricting plate 27 that is rotated around an axis in the left-right direction by an electric motor, so that ions contained in the air sent out can easily reach the vicinity of the center of the room. The inclination angle of the wind direction regulating plate 27 is adjusted.

The direction of air sent out from the second ventilation path 20 is different from the direction of air sent out from the first ventilation path 10. In other words, air is sent forward from the second ventilation path 20, whereas air is sent obliquely upward rearward from the first ventilation path 10.

FIG. 4 is a cross-sectional view showing the closed state of the rear outlet in the air conditioner in FIG. FIG. 5 is a cross-sectional view showing the fully opened state of the rear outlet in the air conditioner in FIG. 1. FIG. 6 is a cross-sectional view showing a half-open state of the rear outlet in the air conditioner in FIG. FIG. 7 is a side view showing a half-opened state of the rear outlet in the air conditioner in FIG. 1.

4 to 7, air conditioner 500 in the present embodiment has a plurality of operation modes, and opening of rear outlet 18 is based on the air conditioning operation determined according to the operation mode. The area is adjusted. The operation modes provided in the air conditioner 500 include an ion shower mode that increases the amount of ions released when indoor air suddenly becomes dirty, a quick dust absorption mode that rapidly absorbs indoor dust and dust, and the like. The operation mode of the air conditioner 500 can be switched manually by a user's operation or automatically based on the outputs of various sensors such as an ion sensor, a temperature / humidity sensor, an odor sensor, or a dust sensor.

The air conditioner 500 includes a louver 7 as a means for changing the opening area of the rear outlet 18. The louver 7 forms a flow path through which air flows at the most downstream side of the air flow at the rear outlet 18. The louver 7 is provided on the downstream side of the air flow at the rear outlet 18 with respect to the guard portion 70.

FIG. 8 is a perspective view showing a fully opened state of the rear outlet when the opening surface of the rear outlet is viewed from the front in the air conditioner in FIG. FIG. 9 is a perspective view illustrating a fully opened state of the rear outlet when the opening surface of the rear outlet is viewed from an oblique direction in the air conditioner in FIG. 1. FIG. 10 is a perspective view showing a half-opened state of the rear outlet when the opening surface of the rear outlet is viewed from the front in the air conditioner in FIG. 1. FIG. 11 is a perspective view showing a half-opened state of the rear outlet when the opening surface of the rear outlet is viewed from an oblique direction in the air conditioner in FIG. 1.

5 to 11, louver 7 has main wall portion 71, side wall portion 72p, and side wall portion 72q (hereinafter referred to as side wall portion 72 unless otherwise specified) as its constituent parts.

The main wall 71 is provided to face the wall surface 13 a of the air supply chamber 13. The side wall part 72p and the side wall part 72q are provided to face each other with a space therebetween. The side wall part 72p and the side wall part 72q are provided so as to rise from both ends of the main wall part 71. The side wall portion 72p and the side wall portion 72q are rotatably supported on the housing 1 side around the rotation shaft 79.

A flow path through which air flows is formed at a position sandwiched between the main wall 71 and the wall surface 13a of the air supply chamber 13 on the most downstream side of the air flow at the rear outlet 18. When the louver 7 rotates about the rotation shaft 79, the inclination of the main wall portion 71 of the louver 7 changes, and accordingly, the distance between the main wall portion 71 and the wall surface 13 a of the air supply chamber 13. Increases or decreases. Thereby, the opening area of the back surface outlet 18 changes, and the closed state, the full open state, and the half-open state of the back surface outlet 18 are obtained.

The opening surface of the rear outlet 18 has an elongated shape having a longitudinal direction and a short direction when viewed from the front. The longitudinal direction coincides with the direction in which the side wall portion 72p and the side wall portion 72q face each other (the direction indicated by the arrow 610 in FIG. 8), and the short side direction indicates that the main wall portion 71 and the wall surface 13a of the air supply chamber 13 are located. This corresponds to the opposite direction (the direction indicated by the arrow 620 in FIG. 8). The opening surface of the rear outlet 18 has a relatively large length in the longitudinal direction and a relatively small length in the short direction.

In the present embodiment, the opening surface of the rear outlet 18 has a substantially rectangular shape. An example of the size of the opening surface of the rear blowing port 18 will be described. The opening surface of the rear blowing port 18 has a length of 225 mm in the longitudinal direction and a length of 75 mm in the short direction (full opening). Time). As the louver 7 rotates, the length in the short direction of the opening surface of the rear outlet 18 changes to 45 mm, 35 mm, and 30 mm (when half open).

Note that the opening surface of the rear outlet 18 is a plane in which the opening of the rear outlet 18 is recognized when viewed from the direction of air blowing from the rear outlet 18, for example, the rear outlet shown in FIG. When viewed from the front of the port 18, a substantially rectangular plane defined by the inner wall of the main wall 71, the inner walls of the side wall 72 p and the side wall 72 q, and the wall surface 13 a of the air supply chamber 13 is It is an opening surface. The opening surface of the rear outlet 18 is not limited to a rectangular shape, and has an elongated shape such as an elliptical shape or a track shape composed of two parallel straight lines and two semicircles arranged on both sides thereof. May be. The opening surface of the rear outlet 18 is not limited to an elongated shape, and may have a shape such as a circle or a polygon.

FIG. 12 is a plan view showing a louver provided at the rear outlet in the air conditioner of FIG. FIG. 13 is a front view showing the louver in FIG. In the figure, a louver is shown as viewed from the direction indicated by arrow XIII in FIG. FIG. 14 is a perspective view showing the louver in FIG.

Referring to FIGS. 5 to 14, air conditioner 500 in the present embodiment includes vortex component generator 75p and vortex component generator 75q (hereinafter referred to as vortex component generator 75 unless otherwise specified). Have. The vortex component generator 75 is provided at the rear outlet 18.

The vortex component generating portion 75 is provided so as to protrude from the inner wall that defines the flow path through which air flows at the rear outlet 18. The vortex component generator 75 is provided so as to generate a vortex component on the side of the main flow (hereinafter also simply referred to as main flow) of the air flow sent to the rear outlet 18 by the blower fan 4. The vortex component generator 75 is provided so as to generate a vortex component different from the mainstream at the rear outlet 18.

The vortex component generating portion 75 is provided adjacent to the opening surface of the rear outlet 18 in the air flow direction at the rear outlet 18. The vortex component generation unit 75 is provided on the downstream side of the air flow in the rear outlet 18 with respect to the guard unit 70. In the air flow direction at the rear outlet 18, the vortex component generator 75 is provided between the guard part 70 and the opening surface of the rear outlet 18.

The vortex component generating portion 75 is provided at the periphery of the opening surface of the rear blowing port 18 when the opening surface of the rear blowing port 18 is viewed from the front. When the opening surface of the rear outlet 18 is viewed from the front, the vortex component generator 75 is provided so as to partially close the opening surface of the rear outlet 18. When the opening surface of the rear outlet 18 is viewed from the front, the vortex component generator 75 is provided at at least one of both ends of the rear outlet 18 in the longitudinal direction.

In the present embodiment, when the opening surface of the rear outlet 18 is viewed from the front, the vortex component generating portions 75 are provided at both ends of the rear outlet 18 in the longitudinal direction. When the opening surface of the rear outlet 18 is viewed from the front, the vortex component generator 75 is provided at the two lower corners of the four corners of the opening of the rear outlet 18 having a substantially rectangular shape. In a state where the air conditioner 500 is installed on the floor with the back side of the housing 1 facing the wall, the vortex component generator 75 is provided at the corner of the back outlet 18 on the side close to the wall. When the opening surface of the rear blowing port 18 is viewed from the front, the vortex component generating portion 75 is provided symmetrically with respect to the center of the opening surface of the rear blowing port 18 in the longitudinal direction.

The louver 7 has an inner wall 73m and an inner wall 73n that define a flow path through which air flows in the rear outlet 18 (hereinafter referred to as an inner wall 73 unless otherwise distinguished). The inner wall 73m is formed in the main wall portion 71, and the inner wall 73n is formed in the side wall portion 72.

In the present embodiment, the vortex component generator 75 is provided in the louver 7. The vortex component generator 75 is provided so as to protrude from the inner wall 73. The vortex component generator 75 is provided at the corner between the inner wall 73m and the inner wall 73n. The vortex component generator 75p is provided at the corner between the inner wall 73m and the inner wall 73m of the side wall 72p, and the vortex component generator 75q is provided at the corner between the inner wall 73m and the inner wall 73m of the side wall 72q. Yes.

In the present embodiment, the vortex component generating unit 75 is provided in the rotatable louver 7. However, the present invention is not limited to this configuration, and the vortex component generating unit 75 is not rotatable. 13 may be provided on the wall surface 13a side, or may be provided at the four corners of both the louver 7 and the wall surface 13a of the air supply chamber 13. Further, in the air conditioner that includes the louver 7 that includes only the main wall portion 71 without the side wall portion 72p and the side wall portion 72q, the vortex component generating portion 75 is provided on at least one of both ends of the main wall portion 71. May be. Further, in the air conditioner that does not include the louver 7, the vortex component generation unit 75 may be provided at an appropriate corner of the rear outlet 18.

The vortex component generator 75 has a first surface 76 and a second surface 77. The first surface 76 rises from the inner wall 73 and extends on a surface intersecting the mainstream flow direction. The first surface 76 extends on a surface that obliquely intersects the mainstream flow direction. The distance between the first surface 76 of the vortex component generating portion 75p and the first surface 76 of the vortex component generating portion 75q decreases as the air flow in the rear outlet 18 increases from the upstream side to the downstream side. The first surface 76 is configured by a curved surface.

The 2nd surface 77 is provided so that the 1st surface 76 and the ridgeline 78 may be formed. The second surface 77 extends from the ridge line 78 toward the main wall portion 71 and the side wall portion 72. The second surface 77 is a curved surface. The ridge line 78 is provided in an edge shape. The first surface 76 and the second surface 77 intersect so that the ridgeline 78 forms a sharp corner. The distance between the ridge line 78 of the vortex component generation unit 75p and the ridge line 78 of the vortex component generation unit 75q decreases from the upstream side to the downstream side of the air flow at the rear outlet 18.

The vortex component generating part 75 is provided such that the ridge line 78 has a convex shape toward the inner wall 73 side from which the vortex component generating part 75 protrudes from the flow path side through which air flows. The rate at which the distance between the ridge line 78 of the vortex component generating unit 75p and the ridge line 78 of the vortex component generating unit 75q decreases gradually from the upstream side to the downstream side of the air flow at the rear outlet 18 gradually increases.

The vortex component generating part 75 is provided so as to have a throttle shape in which the length (width) of the flow path in the longitudinal direction of the opening surface of the rear outlet 18 becomes smaller from the upstream side to the downstream side of the air flow. . The minimum length x of the flow path in the longitudinal direction and the total length L of the flow path in the longitudinal direction preferably satisfy the relationship of 0.6 ≦ x / L ≦ 0.9 (see FIG. 12). .

As shown in FIGS. 8 and 9, the vortex component generating portion 75 is provided so that the entire vortex component generating portion 75 is exposed from the opening surface of the vortex component generating portion 75 in the fully opened state of the rear outlet 18. As shown in FIGS. 10 and 11, the vortex component generating unit 75 is provided so that a part of the vortex component generating unit 75 is hidden from the opening surface of the vortex component generating unit 75 when the rear outlet 18 is in a half-open state.

Then, the effect produced in the air conditioner 500 in FIG. 1 is demonstrated. FIG. 15 is a diagram schematically showing the flow of air blown from the rear air outlet into the room in the air conditioner in FIG. 1. FIG. 16 is an enlarged view of a range surrounded by a two-dot chain line XVI in FIG.

Referring to FIGS. 15 and 16, in air conditioner 500 according to the present embodiment, main flow 510 and vortex having a swirl component flow along main flow 510 as a blow-out flow from back blow-out port 18 to the room. A blow-out flow consisting of the flow 520 (the swirl center axis of the vortex flow 520 is in the direction along the flow direction of the main flow 510) is generated.

Air flowing in the same direction as the main flow 510 at the rear outlet 18 (air flow indicated by an arrow 521) collides with the first surface 76 of the vortex component generating unit 75 and flows along the rising shape of the first surface 76 (arrow). Air flow shown at 522). Of these, the air that has become unable to flow along the first surface 76 (separated from the first surface 76) flows so as to wind up the edge of the ridge line 78 when it gets over the ridge line 78. Thereby, a vortex component (air flow indicated by an arrow 523) different from that of the main flow 510 is generated on the main flow 510 side. The vortex component generated in this way is blown out from the rear outlet 18 and then becomes a vortex flow 520 and flows in the same direction as the main flow 510.

FIG. 17 is a diagram schematically showing the velocity potential of the air flow blown out from the rear outlet in the air conditioner in FIG. FIG. 18 is a diagram schematically illustrating the velocity potential of the air flow blown out from the rear outlet in the air conditioner for comparison. In the air conditioner for comparison in FIG. 18, the vortex component generator 75 shown in FIGS. 15 and 16 is not provided at the rear outlet 18.

Referring to FIG. 17 and FIG. 18, the vortex flow 520 can give new kinetic energy to the boundary layer between the main flow 510 and its surroundings, and can reach far by giving rotation. Further, since the vortex flow 520 has a slow decay, the main flow 510 is prevented from being eroded by an induced air flow (an air flow taken into the main flow area 530 from the surrounding area 540). This makes it easy to maintain the potential core (maximum value of the wind speed component) of the main stream 510 even at a position far from the rear outlet 18. Thereby, attenuation | damping of the speed of the mainstream 510 can be suppressed and the reachable distance of the mainstream 510 can be extended effectively.

At this time, in the present embodiment, since the vortex flow 520 is used to suppress the attenuation of the velocity of the main flow 510, the rear air outlet is simply compared with the case where the air velocity of the main flow 510 is increased by simply narrowing the rear air outlet 18. An increase in pressure loss at 18 can be suppressed. Thereby, it can prevent that the air volume of the mainstream 510 in the back surface outlet 18 reduces significantly.

In the present embodiment, the vortex component generating portions 75 are provided at both ends of the rear outlet 18 in the longitudinal direction. According to such a configuration, the velocity of the main flow 510 is reduced by the vortex flow 520 formed at the end of the main flow area 530 while suppressing the opening surface of the rear outlet 18 from being greatly restricted by the vortex component generation unit 75. Can be effectively suppressed.

Further, in the present embodiment, the first surface 76 that forms the appearance of the vortex component generating unit 75 is configured by a curved surface. According to such a configuration, the effect of the vortex flow 520 can be more effectively obtained by suppressing the vortex component generation unit 75 from becoming the resistance of the main flow 510 and blocking the air flow. In addition, without increasing the rotational speed of the blower fan 4, it is possible to suppress a decrease in the wind speed at the rear outlet 18 and to increase the dust suction speed more efficiently. Further, since the wind speed at the rear outlet 18 is difficult to decrease and the reach distance of the main stream 510 is extended, the amount of ions released can be increased.

Further, in the present embodiment, the vortex component generating unit 75 forms a throttle shape in the long side direction of the opening surface of the back surface blowing port 18, and the blowing area is reduced. With such a configuration, the wind speed of the main flow 510 blown out from the rear blowing port 18 increases, so that the reach distance can be further extended.

When the minimum length x of the flow path in the longitudinal direction of the opening surface of the rear outlet 18 and the total length L of the flow path in the longitudinal direction satisfy the relationship x / L ≦ 0.9, the main stream 510 side Thus, the vortex component can be generated more reliably, and the wind speed of the main flow 510 can be effectively maintained by the vortex. Further, when the minimum length x of the channel in the longitudinal direction of the opening surface of the surface outlet 18 and the total length L of the channel in the longitudinal direction satisfy the relationship 0.6 ≦ x / L, the rear outlet 18 It is possible to effectively improve the dust suction speed while minimizing the decrease in the air volume.

In the present embodiment, the vortex component generating unit 75 is provided in the louver 7. With such a configuration, the wind speed can be adjusted by changing the inclination of the louver 7, and the dust suction speed can be optimized depending on the use scene. Further, the flow direction of the vortex component can be made closer to the flow direction of the main flow 510 at the rear outlet 18. As a result, a stronger vortex component can be caused to flow along the main flow 510, and attenuation of the velocity of the main flow 510 can be effectively suppressed.

According to the air conditioner 500 according to Embodiment 1 of the present invention configured as described above, the vortex component generated by the vortex component generating unit 75 can suppress the attenuation of the velocity of the main flow 510. As a result, it is possible to improve the dust collection speed while suppressing a decrease in the dust collection capability.

The air conditioner 500 according to the present embodiment includes an air conditioning operation for deodorizing an indoor odor installed therein, an air conditioning operation for collecting indoor dust, dust or pollen, an air conditioning operation for releasing ions, and a room. Performs air conditioning to humidify the air. The air conditioner to which the present invention is applied is not limited to such a configuration, and may be an air conditioner that performs at least one of the four air conditioning operations described above or other air conditioning operations. .

The air conditioner in the present invention is applied to various air conditioners for adjusting and adjusting the air condition such as a dehumidifier, a humidifier, an air conditioner, and an air purifier.

(Embodiment 2)
The air conditioner in the present embodiment basically has the same structure as that of the air conditioner 500 in the first embodiment. Hereinafter, the description of the overlapping structure will not be repeated.

FIG. 19 is a perspective view showing a fully opened state of the rear outlet when the opening surface of the rear outlet is viewed from the front in the air conditioner according to Embodiment 2 of the present invention. FIG. 20 is a perspective view illustrating a fully opened state of the rear outlet when the opening surface of the rear outlet is viewed from an oblique direction in the air conditioner in FIG. 19. FIG. 21 is a perspective view showing a half-opened state of the rear outlet when the opening surface of the rear outlet is viewed from the front in the air conditioner in FIG. 19. FIG. 22 is a perspective view showing a half-open state of the rear outlet when the opening surface of the rear outlet is viewed from an oblique direction in the air conditioner in FIG.

FIG. 23 is a plan view showing a louver provided at the rear outlet in the air conditioner of FIG. FIG. 24 is a front view showing the louver in FIG. In the figure, a louver is shown as viewed from the direction indicated by arrow XXIV in FIG. FIG. 25 is a perspective view showing the louver in FIG.

Referring to FIGS. 19 to 25, the air conditioner in the present embodiment has a vortex component generation unit 75p and a vortex component generation unit 75q (hereinafter referred to as vortex component generation unit 75 unless otherwise distinguished). . The vortex component generation unit 75 is provided in the rear outlet 18 in the same manner as the vortex component generation unit 75 in the first embodiment.

The vortex component generating part 75 is provided such that the ridge line 78 has a convex shape from the inner wall 73 side from which the vortex component generating part 75 protrudes toward the flow path side through which air flows. The rate at which the distance between the ridge line 78 of the vortex component generating unit 75p and the ridge line 78 of the vortex component generating unit 75q decreases gradually from the upstream side to the downstream side of the air flow at the rear outlet 18 gradually decreases.

An example of the size of the vortex component generating portion 75 will be described. The opening surface of the rear outlet 18 has a length of 225 mm in the longitudinal direction and a length of 75 mm (when fully opened) in the short direction. In this case, the vortex component generating portion 75 (75 m, 75 n) has a length of 37.5 mm in the same longitudinal direction and a length of 45 mm in the same short direction, and the air flow at the rear outlet 18. It has a length of 70 mm in the direction.

FIG. 26 is a diagram schematically showing the flow of blowout from the rear blowout port to the room in the air conditioner in FIG.

Referring to FIG. 26, in the air conditioner according to the present embodiment, the main flow 510 and the vortex flow 520 that flows along the main flow 510 and has a swirl component are flown from the rear outlet 18 into the room. Is generated.

At this time, since the vortex component generation unit 75 is provided so that the ridge line 78 has a convex shape toward the flow path, the blowing direction of the vortex component generated in the vortex component generation unit 75 as compared with the first embodiment. Becomes a direction close to the flow direction of the main flow 510. Thereby, a stronger vortex flow 520 can be caused to flow along the main flow 510, and the effect of suppressing the erosion of the wind velocity of the main flow 510 is more remarkably obtained. As a result, the initial speed of the main stream 510 can be easily maintained, and the dust suction speed can be improved more effectively.

According to the air conditioner of the second embodiment of the present invention configured as described above, the effects described in the first embodiment can be similarly obtained.

Subsequently, various examples carried out in order to confirm the operational effects achieved by the air conditioner in

Embodiments

1 and 2 will be described.

In the examples described below, the air conditioner in the first embodiment, the air conditioner in the second embodiment, and the air conditioner in the comparative example (the vortex component generating unit 75 is provided in the rear outlet 18). Not used). The length of the opening surface of the rear outlet 18 in the longitudinal direction is 225 mm, the length in the short direction when fully opened (hereinafter also referred to as the opening length of the rear outlet 18) is 75 mm, and the length in the half-open state is short. The lengths in the hand direction were 45 mm, 35 mm and 30 mm.

Hereinafter, for convenience of explanation, the shape of the vortex component generation unit 75 in the first embodiment is referred to as an “R shape”, and the shape of the vortex component generation unit 75 in the second embodiment is referred to as an “inverse R shape”.

27 to 30 are graphs showing the relationship between the rotation speed of the blower fan and the air volume in Example 1. FIG.

In this embodiment, when the opening length of the rear blowing port 18 is 75 mm (when fully opened), 45 mm, 35 mm, and 30 mm, the air flow rate of the blowing flow at the rear blowing port 18 while changing the rotation speed of the blower fan 4. The results are shown in FIGS. 27 to 30 (FIG. 27: fully open, FIG. 28: 45 mm, FIG. 29: 35 mm, FIG. 30: 30 mm).

27 to FIG. 30, in any case, the air volume at the same rotation speed of the blower fan 4 was slightly larger in the first embodiment than in the second embodiment. The R shape of the vortex component generation unit 75 in the first embodiment is a shape suitable for slightly increasing the wind speed and increasing the air volume, and can preferentially improve the dust collection capability by increasing the air volume. .

FIG. 31 to FIG. 34 are graphs showing the relationship between the rotational speed of the blower fan and the wind speed in the second embodiment.

In the present embodiment, when the opening length of the rear blowing port 18 is 75 mm (when fully opened), 45 mm, 35 mm, and 30 mm, the rotation speed of the blower fan 4 is changed, and the height from the opening surface of the surface blowing port 18 is increased. The maximum wind speed in the width direction of the blowout flow was measured at a position 50 cm away in the vertical direction, and the results are shown in FIGS. 31 to 34 (FIG. 31: fully open, FIG. 32: 45 mm, FIG. 33: 35 mm) , FIG. 34: at 30 mm).

Referring to FIG. 31 to FIG. 34, in any case, the wind speed at the same rotation speed of the blower fan 4 was the highest in the second embodiment. The inverse R shape of the vortex component generating unit 75 in the second embodiment is a shape suitable for significantly increasing the wind speed while keeping the air volume equal, and the dust suction speed is preferentially improved by increasing the wind speed. be able to.

35 to 38 are graphs showing the relationship between the air volume and the dust suction speed in Example 3.

In this embodiment, the dust suction opening length 75mm rear outlet 18 (when fully opened), 45 mm, in case of the 35mm and 30 mm, the same air volume during ^(5.7m ³ ^/min,3.5m 3 / min) The speed was measured, and the results are shown in FIGS. 35 to 38 (FIG. 35: fully open, FIG. 36: 45 mm, FIG. 37: 35 mm, FIG. 38: 30 mm). The dust suction speed was specified by measuring the time required for dust near the wall facing the wall where the air conditioner was installed to reach the vicinity of the inlet 22 of the housing 1.

Referring to FIGS. 35 to 38, when the dust suction speed at the same air volume is compared, the dust suction speed becomes the second embodiment, the first embodiment, and the comparative example in the order of excellent dust suction speed. There was a tendency to follow in order. Moreover, although the opening area of the back surface outlet 18 became small with the change of the inclination of the louver 7, the dust suction speed could be increased, but the above tendency was not changed.

FIG. 39 and FIG. 40 are graphs showing the relationship between the opening length of the rear outlet and the dust absorption speed in Example 4.

In the present embodiment, the dust suction speed at the same air volume with respect to the opening length of the rear outlet 18 was compared (FIG. 39: at 5.7 m ³ / min, FIG. 40: at 3.5 m ³ / min). Referring to FIGS. 39 and 40, in the comparative example in which the vortex component generating portion 75 is not provided in the rear outlet 18, the opening area of the rear outlet 18 is reduced and the pressure loss is increased, so that the air volume is reduced. The dust absorption speed could not be improved effectively. Even if the opening surface of the rear outlet 18 is narrowed, the dust suction speed does not increase or rather tends to decrease. On the other hand, in the first and second embodiments, the dust suction speed can be increased according to the aperture of the rear outlet 18 by effectively increasing the wind speed while suppressing an increase in pressure loss. It was.

FIG. 41 is a graph showing the relationship between air volume and noise in Example 5. FIG. 42 is a graph showing the relationship between the air volume and the power consumption of the blower fan in Example 5.

In this example, when the opening length of the rear outlet 18 is 75 mm (when fully open), the noise at each air volume was measured while changing the air volume, and the result is shown in FIG. Further, when the opening length of the rear outlet 18 is 75 mm (when fully opened), the power consumption of the blower fan 4 at each air volume was measured while changing the air volume, and the result is shown in FIG.

41 and 42, both the noise and the power consumption of the blower fan 4 are provided with the comparative example in which the vortex component generating portion 75 is not provided in the rear outlet 18 and the vortex component generating portion 75 is provided in the rear outlet 18. It was not possible to recognize a large difference between the first embodiment and the second embodiment.

FIG. 43 is a graph showing the relationship between x / L and the dust absorption speed in Example 6. FIG. 44 is a graph showing the relationship between x / L and dust collection capability in Example 6. FIG. 45 is a graph showing the relationship between x / L and air cleaning power in Example 6.

In this example, the air conditioner (vortex component generating unit 75 has an R shape) in the first embodiment is used, the power consumption of the blower fan 4 is 52 W, and the opening length of the rear outlet 18 is 75 mm (when fully opened). In this case, the performance of each of the dust suction speed, the dust collection capacity and the air cleaning capacity was measured while changing the minimum length x of the flow path in the longitudinal direction of the opening surface of the rear outlet 18 (the total length of the flow path in the longitudinal direction). L is 225 mm).

43 to 45, with respect to the dust absorption speed, when x / L is less than 0.9, it rapidly increases, and when it is less than 0.7, it does not change greatly thereafter. Since the power consumption of the blower fan 4 is constant, if the rear outlet 18 is throttled, the air volume is reduced due to an increase in pressure loss, the load on the blower fan 4 is reduced, and the rotational speed of the blower fan 4 is increased. As a result, the air volume decreases, but the wind speed is maintained.

The dust collection capacity (air volume) is equal to or higher than that in the case where the vortex component generation unit 75 is not provided (x / L = 1) until x / L is less than 0.6. When L was less than 0.6, the result decreased rapidly. As the rear outlet 18 is squeezed, the dust collection ability decreases. However, since the wind speed increases, the reach distance of the outlet flow is extended, and the reduction of the dust collection ability is suppressed to some extent.

Regarding the air cleaning capacity, the number obtained by dividing the dimensionless value of the dust collection capacity by the dimensionless value of the dust absorption speed on the basis of the case where the vortex component generator 75 is not provided is defined as the air cleaning capacity, An index value indicating the overall performance of The value of the air cleaning ability was a large value as compared with the case where the vortex component generation part was not provided until x / L was less than 0.585. As for the peak of the air cleaning ability, x / L = was around 0.7. From the above, it was confirmed that the air cleaning performance was improved in the range up to about x = 0.6L.

(Embodiment 3)
The air conditioner in the present embodiment basically has the same structure as that of the air conditioner 500 in the first embodiment. Hereinafter, the description of the overlapping structure will not be repeated.

FIG. 46 is a perspective view showing a fully opened state of the rear outlet when the opening surface of the rear outlet is viewed from the front in the air conditioner according to Embodiment 3 of the present invention. 47 is a cross-sectional view showing the fully opened state of the rear outlet in the air conditioner of FIG.

42 and 43, the air conditioner in the present embodiment has a convex portion 560 in addition to the vortex component generating portion 75. The convex portion 560 is provided at the rear outlet 18.

The convex portion 560 is provided so as to protrude from the inner wall that defines the flow path through which air flows at the rear outlet 18. The convex portion 560 is provided so as to protrude from the wall surface 13 a of the air supply chamber 13.

When the opening surface of the rear outlet 18 is viewed from the front, the convex portion 560 is provided on the periphery of the opening surface of the rear outlet 18. The convex portion 560 is provided so as to partially close the opening surface of the rear blowing port 18 when the opening surface of the rear blowing port 18 is viewed from the front. When the opening surface of the rear outlet 18 is viewed from the front, the convex portion 560 is provided between the vortex component generating portion 75p and the vortex component generating portion 75q. The convex portion 560 is provided in a convex shape protruding from the opposite side of the groove portion at a position corresponding to the groove portion between the vortex component generating portion 75p and the vortex component generating portion 75q.

Further, in the present embodiment, the louver 7 provided with the vortex component generating portion 75 is formed longer in the air flow direction at the rear outlet 18 than the wall surface 13a side of the air supply chamber 13 provided with the convex portion 560. Has been.

According to the configuration described above, the reach distance of the blowout flow from the back face blowout port 18 can be extended more effectively.

The air conditioner according to Embodiment 3 of the present invention configured as described above can achieve the same effects as those described in Embodiment 1.

The configuration and operational effects of the present invention will be described together as follows. In addition, although the reference number as described in embodiment is attached | subjected to the structure of invention, this is an example.

An air conditioner according to one aspect of the present invention has a housing (1) having an air outlet (18) that opens into a room and blows out air, and is accommodated in the housing (1) and directed toward the air outlet (18). And a fan (4) for sending out air. The outlet (18) includes an inner wall (73) that defines a flow path through which air flows. The air conditioner includes a vortex component generator (75) that protrudes from the inner wall (73) and generates a vortex component on the main stream side of the air flow sent out to the outlet (18) by the fan (4).

According to the air conditioner configured as described above, the vortex component generation unit generates a vortex component on the main flow side of the air flow, so that a boundary layer between the main flow blown into the room from the outlet and the surrounding area is generated. It is difficult to attenuate, and there exists a vortex flow that can reach far. Thereby, it is possible to suppress the mainstream from being eroded by the induced airflow (the airflow taken into the mainstream from the surroundings), and to suppress the attenuation of the mainstream speed. At this time, the vortex component generating portion provided so as to protrude from the inner wall of the outlet does not greatly reduce the opening surface of the outlet, so that it is possible to suppress a reduction in the mainstream air volume. Therefore, according to the present invention, it is possible to improve the dust suction speed while suppressing a decrease in the dust collecting ability.

Also preferably, the opening surface of the outlet (18) has an elongated shape having a longitudinal direction and a lateral direction when viewed from the front. The vortex component generating part (75) is provided at at least one of both ends of the outlet (18) in the longitudinal direction.

According to the air conditioner configured as described above, it is possible to achieve an effect of suppressing attenuation of the mainstream speed while suppressing the opening surface of the outlet from being restricted by the vortex component generating unit.

Preferably, the vortex component generating part (75) rises from the inner wall (73) and extends on a surface intersecting the main flow direction, the first surface (76), the first surface (76) and the ridgeline ( 78) forming a second surface (77).

According to the air conditioner configured in this manner, the air flowing through the flow path at the outlet changes the flow in the rising direction on the first surface. Thereby, when air peels from the first surface and further flows over the ridgeline between the first surface and the second surface, the vortex component can be generated by flowing so as to involve the ridgeline.

Also preferably, the vortex component generating part (75) is provided such that the ridge line (78) is an edge.

According to the air conditioner configured as described above, a stronger vortex component can be generated by flowing the air so as to involve the edge-shaped ridgeline.

Also preferably, the vortex component generator (75) is provided such that the first surface (76) is curved.

According to the air conditioner configured in this way, it is possible to prevent the mainstream flow at the outlet from being hindered due to the vortex component generating portion.

Preferably, the vortex component generating part (75) is provided such that the ridge line (78) has a convex shape from the inner wall (73) side from which the vortex component generating part (75) protrudes toward the flow path side through which air flows. It is done.

According to the air conditioner configured as described above, the flow direction of the vortex component when the vortex component is generated can be brought close to the flow direction of the mainstream. Thereby, a stronger vortex component can be caused to flow along the main flow, and attenuation of the main flow velocity can be effectively suppressed.

Also preferably, the vortex component generating part (75) is provided so that the length of the flow path in the longitudinal direction becomes narrower as it approaches the downstream side from the upstream side of the air flow.

According to the air conditioner configured as described above, since the opening surface of the outlet is formed into a throttle shape by the vortex component generating portion, the mainstream outlet speed increases. For this reason, a dust absorption speed can be improved preferentially.

Also preferably, the minimum length x of the channel in the longitudinal direction and the total length L of the channel in the longitudinal direction satisfy the relationship of 0.6 ≦ x / L ≦ 0.9.

According to the air conditioner configured as described above, the effect of suppressing the attenuation of the mainstream velocity and the effect of suppressing the decrease of the mainstream air volume can be achieved in a balanced manner.

Also preferably, the blowout port (18) includes a louver (7) that makes the area of the opening surface of the blowout port (18) variable. The vortex component generator (75) is provided in the louver (7).

According to the air conditioner configured as described above, the flow direction of the vortex component when the vortex component is generated is made closer to the flow direction of the main flow by providing the vortex component generation unit in the louver that regulates the flow direction of the main flow. be able to. Thereby, a stronger vortex component can be caused to flow along the main flow, and attenuation of the main flow velocity can be effectively suppressed.

An air conditioner according to another aspect of the present invention has a housing (1) having a blowout opening (18) that opens into a room and blows out air, and is accommodated in the housing (1) and directed toward the blowout opening (18). And a fan (4) for sending out air. As a blowout flow into the room from the blowout port (18), a blowout flow is generated which is composed of a main flow of the air flow sent to the blowout port by the fan (4) and a vortex flow which flows along the main flow and has a swirl component. .

According to the air conditioner configured as described above, it is possible to improve the dust suction speed while suppressing a decrease in the dust collecting ability.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

This invention is mainly applied to an air conditioner having an air purification function.

1 housing, 1a front cover, 4,24 blower fan, 5 humidification unit, 6 water supply tank, 7 louver, 8 prefilter, 10 first ventilation path, 11 filter storage room, 12 humidification room, 13, 20b air supply room, 13a, 13b wall surface, 14, 15, 21 partition, 16 rear panel, 17, 22 air inlet, 18, 26 air outlet, 19 guide section, 20 second air passage, 20a air intake chamber, 23, 70 guard section, 25, 35 ion generator, 27 wind direction restriction plate, 31 deodorization filter, 32 dust collection filter, 40 impeller, 41 fan motor, 50 humidification filter part, 51 holding frame, 51a driven gear, 52 humidification filter, 55 water tank, 58 electric motor 58a drive gear, 71 main wall, 72, 72p, 72q side wall, 73, 3m, 73n inner wall, 75, 75p, 75q vortex component generating part, 76 first surface, 77 second surface, 78 ridgeline, 79 rotating shaft, 81 filter part, 82 handle part, 90 control room, 242 fan, 500 air Harmonic machine, 510 mainstream, 520 vortex flow, 530 mainstream area, 540 surrounding area, 560 convex.

Claims

A housing having a blowout opening that opens into the room and blows out air;
A fan that is housed in the housing and sends out air toward the outlet;
The outlet includes an inner wall that defines a flow path through which air flows, and
An air conditioner provided with a vortex component generating unit that is provided so as to protrude from the inner wall and generates a vortex component on the main flow side of the air flow sent out to the outlet by the fan.
The opening surface of the outlet has an elongated shape having a longitudinal direction and a short direction when viewed from the front,
The air conditioner according to claim 1, wherein the vortex component generation unit is provided at at least one of both ends of the outlet in the longitudinal direction.
3. The air conditioner according to claim 2, wherein the vortex component generation unit is provided such that the ridge line has a convex shape toward the flow path side through which air flows from the inner wall side from which the vortex component generation unit protrudes. .
The outlet includes a louver that can change an area of an opening surface of the outlet,
The air conditioner according to any one of claims 1 to 3, wherein the vortex component generation unit is provided in the louver.
A housing having a blowout opening that opens into the room and blows out air;
A fan that is housed in the housing and sends out air toward the outlet;
As the air flow from the air outlet to the room, an air flow is generated which is composed of a main flow of the air flow sent out to the air outlet by the fan and a vortex flow that flows along the main flow and has a swirl component. Harmony machine.