JP2013113541A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner that reduces air resistance to be generated when the direction of the conditioned air blown out of an air outlet is deflected in a wide range, and prevents an increase in front-rear dimension of a body.SOLUTION: A body 1 includes a suction port 2 and an air outlet 3. A heat exchanger 4 and a cross-flow fan 5 are arranged in an air passage connecting the suction port 2 and the air outlet 3. Conditioned air subjected to heat exchange with refrigerant by the heat exchanger 4 is blown out of the air outlet 3. A hollow plate-like blowout nozzle 13 which has an outlet facing forward of the air outlet 3 at a rear end of an upper surface, and is provided successively with a coanda surface and a diffuser surface before the jet port is provided rotatably at a lower edge part of the air outlet 3. An air blower is arranged at one side part in the body 1. An air duct 15 is provided which connects the blowout nozzle 13 and air blower to each other and supplies the air from the air blower to the blowout nozzle 13.

Description

  The present invention relates to an air conditioner, and more particularly to a structure for deflecting the wind direction of conditioned air blown from a blowout port.

  As shown in FIG. 6, the conventional air conditioner includes a heat exchanger 105 and a cross-flow fan 106 in an air passage 104 in a main body 101 that connects a suction port 102 and a blower outlet 103. A left and right wind direction plate 107 that deflects the wind direction in the direction and an up and down wind direction plate 108 that deflects the wind direction in the up and down direction are disposed, and a blower fan 109 for controlling the wind direction is disposed at an upper position of the air outlet 103 ( For example, Patent Document 1).

  Thereby, the air sucked from the suction port 102 is heat-exchanged with the refrigerant in the heat exchanger 105, and the conditioned air subjected to the heat exchange is sent to the outlet 103 by the cross flow fan 106, and the left and right wind direction plates 107 and the upper and lower wind direction plates The blowing air direction is deflected by 108, and the blowing air direction is finely adjusted by the air direction control blower fan 109 so that the air is blown out from the air outlet 103.

  The conditioned air sent to the outlet 103 by the cross flow fan 106 is deflected when the vertical wind direction strikes the vertical wind direction plate 108. In addition, the air blown from the jet outlet 110 by the wind direction control blower fan 109 hits the vertical wind direction plate 108 and is blown forward.

  Therefore, when the vertical wind direction is deflected at the air outlet 103, the conditioned air from the cross flow fan 106 and the air jetted forward by the wind direction control blower fan 109 are subjected to air resistance by hitting the vertical wind direction plate 108. As a result, the wind direction could not be deflected over a wide range without deteriorating the blowing performance.

  Further, since the air direction control blower fan 109 is installed at the upper part of the blower outlet 103 and at the lower part of the front surface of the main body 101, the wind direction control blower fan 109 having a size capable of finely adjusting the wind direction is installed. There is a problem that it is necessary to secure a space for the main body 101 and the size of the main body 101 is increased.

JP 11-2111213 A

  In view of the above problems, an object of the present invention is to provide an air conditioner that can reduce the air resistance generated when the air direction of the conditioned air blown from the air outlet is deflected over a wide range. Moreover, it aims at providing the air conditioner which suppressed the enlargement of the front-back dimension of a main body.

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

The main body is provided with an inlet and an outlet, and a heat exchanger and a cross-flow fan are arranged in an air passage connecting the inlet and the outlet, and the conditioned air heat-exchanged with the refrigerant in the heat exchanger is provided. An air conditioner that blows out from the air outlet,
A hollow, plate-like shape in which a lower end portion of the outlet has a jet outlet directed to the front of the outlet at the rear end of the upper surface, and a Coanda surface and a diffuser surface are continuously provided in front of the outlet. A blower nozzle is provided rotatably, a blower is disposed on one side of the main body, a blower duct is provided that connects the blower nozzle and the blower and supplies air from the blower to the blower nozzle. It is characterized by.

  According to the present invention, an object is to provide an air conditioner that can reduce the air resistance generated when the air direction of the conditioned air blown out from the air outlet is deflected over a wide range. Moreover, the air conditioner which suppressed the enlargement of the front-back dimension of a main body can be provided.

It is a disassembled perspective view of the air conditioner by this invention. It is a conceptual diagram of the air conditioner by this invention. It is explanatory drawing which shows the horizontal blowing from the blower outlet of the air conditioner by this invention, (A) is sectional drawing, (B) is principal part explanatory drawing. It is explanatory drawing which shows the downward blowing from the blower outlet of the air conditioner by this invention, (A) is sectional drawing, (B) is principal part explanatory drawing. It is a principal part expanded sectional view of the air conditioner by this invention. It is sectional drawing of the air conditioner by a prior art example.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.

  As shown in FIGS. 1 to 5, the air conditioner according to the present invention includes a suction port 2 and a blower outlet 3 in a main body 1 covered with a front panel 1 a having an open / close panel 1 b. The heat exchanger 4 for exchanging heat of the suctioned air sucked from the suction port 2 with the refrigerant and the crossflow fan 5 for sending the conditioned air subjected to heat exchange to the blowout port 3 are arranged in the air passage connecting ing.

  FIG. 2 is a conceptual diagram showing an outline of components arranged in the main body 1. The heat exchanger 4, the sirocco fan 8 housed in the fan casing 7, and the upper edge 3 a of the blower outlet 3 are provided. The upper blowing nozzle 12, the lower blowing nozzle 13 provided on the lower edge 3b, and the air ducts 14 and 15 connecting the fan casing 7, the upper blowing nozzle 12 and the lower blowing nozzle 13 to the front. The arrangement when viewed from the side is shown.

  As shown in FIG. 2, a heat exchanger 4 disposed in the main body 1, a cross flow fan 5 that blows out air that has exchanged heat with the refrigerant in the heat exchanger 4, and a fan casing 7 that is disposed on the side of the heat exchanger 4. A sirocco fan 8 housed in the sirocco fan, an upper blowing nozzle 12 (see FIGS. 3 and 4) installed on the upper edge 3a of the blower outlet 3 through which air is sent from the sirocco fan 8 by a blower duct 14, and an upper blowing An air coupler 141 that supports one side of the nozzle 12, a lower blowing nozzle 13 (see FIGS. 3 and 4) that is sent to the lower edge 3 b of the blower outlet 3 through which air is sent by the blower duct 15, An air coupler 151 that supports one side of the blowing nozzle 13, a linkage portion 123 that is linked to the other side of the upper blowing nozzle 12 and drives the upper blowing nozzle 12 and a gear 122, and the lower side It represents a linkage portion 133 comprising a driving motor 131 and the gear 132 drives the outlet nozzle 13 of the lower side is linked to the other side of the outlet nozzle 13.

  The suction air sucked from the suction port 2 is heat-exchanged with the refrigerant in the heat exchanger 4 and then guided by the front guider 9 and the rear guider 10 and the side walls 11a and 11b between the front guider 9 and the rear guider 10. The cross-flow fan 5 driven by the fan motor 6 blows out air as conditioned air from the air outlet 3 so that air conditioning of the air-conditioned room is performed.

  On the upper edge portion 3 a of the air outlet 3 provided at the lower front portion of the main body 1, a hollow plate-like upper air outlet nozzle 12 is provided below the air outlet 3 so as to extend the air passage continuously to the front guider 9. On the edge 3b, a hollow plate-like lower discharge nozzle 13 is installed so as to extend the air passage continuously to the rear guider 10.

  And the flow of the air which spouted from the jet outlet 13a provided later in the upper outlet nozzle 12 provided in the upper outlet nozzle 12 and the lower outlet nozzle 13 is used as the upper outlet nozzle 12 and the lower outlet. By following the surface of the nozzle 13, the conditioned air blown from the blowout port 3 does not directly hit the upper blowout nozzle 12 and the lower blowout nozzle 13, so that loss due to air resistance does not occur. I have to.

  The upper blowing nozzle 12 and the lower blowing nozzle 13 can be turned up and down so that the air flowing along the surfaces of the upper blowing nozzle 12 and the lower blowing nozzle 13 is blown out from the blowing outlet 3. By attracting the conditioned air, the air resistance by the upper blowing nozzle 12 and the lower blowing nozzle 13 is suppressed, and the wind direction of the conditioned air blown from the blowout port 3 can be deflected.

  Further, a blower composed of a sirocco fan 8 to be described later, a fan casing 7 having an intake portion 71 and a discharge portion 72 and housing the sirocco fan 8, and the blowout nozzles 12 and 13 and the fan casing 7 are connected and generated by the blower. By arranging the air ducts 14 and 15 for supplying the supplied compressed air to the blowing nozzles 12 and 13 on the side of the main body 1, the depth dimension of the main body 1 is not increased.

  Next, the conditioned air blown out from the blower outlet 3 is the upper blowout nozzle 12 arranged at the upper edge 3 a of the blower outlet 3 and the lower blowout nozzle 13 arranged at the lower edge 3 b of the blower outlet 3. A configuration in which the resistance is reduced by the air flow ejected from the air and the wind direction is deflected will be described below with reference to the accompanying drawings.

  As shown in FIGS. 1 to 5, the upper blowing nozzle 12 is formed on the lower surface of the blowing nozzle 12 by guiding the indoor air sucked from the air intake portion 71 of the fan casing 7 through the air duct 14 by the sirocco fan 8. By ejecting from the ejection port 12a, it flows out along the diffuser surface 12g1 forming the diffuser portion 12g on the lower surface due to the Coanda effect by the Coanda surface 12f.

  Similarly, the lower blowing nozzle 13 blows indoor air sucked from the air intake portion 71 through the blowing duct 15 through the blowing duct 15 and is formed on the upper surface of the blowing nozzle 13, whereby the Coanda surface 13 f is used. Due to the effect, it flows out along the diffuser surface 13g1 forming the diffuser portion 13g on the upper surface.

  The sirocco fan 8 includes an intake portion 71 that sucks a part of the air sucked from the suction port 2, and discharge portions 72 and 73 connected to the air ducts 14 and 15, respectively. Is housed in a fan casing 7. Therefore, the wind direction control blower fan 109 shown by the broken line in FIGS. 3 and 4 is installed as compared with the case where the wind direction control blower fan 109 is installed at the lower part of the front surface in the main body 1 as in the background art described above. Therefore, the depth dimension of the main body 1 can be reduced by the dimension A shown in FIGS. The sirocco fan 8 housed in the fan casing 7 is not limited to the configuration provided on the side portion in the main body 1, and may be provided on the side portion outside the main body 1.

  The sirocco fan 8 is driven by a fan motor 81 provided on one side of the main body 1. The sirocco fan 8 is arranged coaxially with the cross flow fan 5 so that it is driven by a fan motor 51 that drives the cross flow fan 5 instead of the fan motor 81 for the sirocco fan 8. Also good.

  As shown in FIG. 5, the upper outlet nozzle 12 is formed in a hollow plate shape and has a lower diffuser portion 12g and a jet port 12a directed from the rear of the Coanda surface 12f to the front of the outlet port 3, A blower passage that is continuous with the front guider 9 is formed, and a lower blowout nozzle 13 is formed in a hollow plate shape, and is a jet outlet that is directed forward of the blower outlet 3 from the rear portion of the diffuser portion 13g and the Coanda surface 13f. 13a is provided, and the ventilation path which followed the rear guider 10 is comprised.

  The upper blowing nozzle 12 is pivotally supported at one side by a pivotal support portion 124 provided on the upper portion of the blowout port 3, and is pivotally supported at the other side by an air coupler 141 connected to the blower duct 14. Thus, it can be rotated in the vertical direction. The lower blowing nozzle 13 is pivotally supported at one side by a pivotal support portion 134 provided at the lower portion of the blowout port 3, and is pivotally supported at the other side by an air coupler 151 connected to the blower duct 15. Thus, it can be rotated in the vertical direction.

  As shown in FIGS. 2 and 3B, the upper blowing nozzle 12 is pivotally supported by a pivotal support portion 124 and an air coupler 141, and is driven by a drive motor 121 linked to a linkage portion 123 including a gear 122. Driven to rotate in the vertical direction, the lower outlet nozzle 13 is pivotally supported by a pivotal support portion 134 and an air coupler 151 as shown in FIG. 2 and FIG. It is driven by a drive motor 131 linked to the linkage part 133 and rotated in the vertical direction.

  As shown in FIG. 5, the inner wall 12 b and the outer wall 12 c are arranged in a loop shape or a bent shape at the rear end portion of the upper blowing nozzle 12 so as to approach each other. Between the inner wall 12b and the outer wall 12c, an outlet 12a for jetting air at a high speed is gradually narrowed from the inlet side 12d toward the lower Coanda surface 12f from the inside of the blowout nozzle 12 which is hollow. The gap is formed so that the outlet side 12e opens at the Coanda surface 12f.

  The outlet side 12e of the jet outlet 12a formed narrower than the hollow portion of the upper blowout nozzle 12 is continuously formed on the surface of the outer wall 12c including the Coanda surface 12f. The outer wall 12c of the spout 12a is continuous with the diffuser portion 12g disposed on the downstream side of the Coanda surface 12f and the guide portion 12h disposed on the downstream side of the diffuser portion 12g.

  The sirocco fan 8 blows out the blown air from the blowout port 12a formed in the upper blowout nozzle 12 along the Coanda surface 12f and the diffuser portion 12g, and the conditioned air blown out from the blowout port 3 by the cross flow fan 5. By ejecting at a speed faster than the flow, this conditioned air flow is attracted toward the surface of the diffuser portion 12g.

  As shown in FIG. 5, an inner wall 13b and an outer wall 13c are arranged in a loop shape or a bent shape at the rear end portion of the lower blowing nozzle 13 so as to approach each other. Between the inner wall 13b and the outer wall 13c, an outlet 13a for jetting air at a high speed gradually narrows from the inlet side 13d toward the upper Coanda surface 13f from the inside of the blowout nozzle 13 which is hollow. The gap is formed so that the outlet side 13e opens at the Coanda surface 13f.

  The outlet side 13e of the jet outlet 13a formed narrower than the hollow portion of the lower outlet nozzle 13 is continuously formed on the surface of the outer wall 13c including the Coanda surface 13f. The outer wall 13c of the jet nozzle 13a is continuous with a diffuser portion 13g disposed on the downstream side of the Coanda surface 13f and a guide portion 13h disposed on the downstream side of the diffuser portion 13g.

  The sirocco fan 8 blows out the blown air from the blowout port 13a formed in the lower blowout nozzle 13 along the Coanda surface 13f and the diffuser part 13g from the blowout port 3 by the cross flow fan 5. By ejecting at a speed faster than the air flow, the conditioned air flow is attracted to the surface of the diffuser portion 13g.

  The upper outlet nozzle 12 has a Coanda surface 12f formed in a convex curved surface continuously to the outlet 12a directed toward the outlet 3, and the outlet 12a directs the jet air to the Coanda surface 12f. It is arranged to erupt along.

  The lower blowing nozzle 13 has a Coanda surface 13f formed in a convex curved surface continuously to the jetting port 13a directed toward the blowing port 3, and the jetting port 13a transmits the jetted air to the Coanda surface 13f. It is arranged to erupt along.

  The Coanda surface 12f of the upper blowing nozzle 12 and the Coanda surface 13f of the lower blowing nozzle 13 are air that has exited from the jet port 12a and the jet port 13a provided close to the surfaces of the Coanda surface 12f and the Coanda surface 13f. The (fluid) flow has a known shape showing the Coanda effect. The air (fluid) ejected from the ejection port 12a and the ejection port 13a tends to flow almost “sticking” or “sticking” along the Coanda surface 12f and the Coanda surface 13f due to the Coanda effect.

  Here, the conditioned air that is heat-exchanged with the refrigerant in the heat exchanger 4 and blown out from the outlet 3 is used as the primary air flow, and the blown air that exhibits the Coanda effect by the Coanda surface 12f and the Coanda surface 13f is used as the secondary air flow. The air flow will be described below.

  By setting “primary air flow velocity” <“secondary air flow velocity”, the primary air flow is attracted to the secondary air flow and deflected in the wind direction. Therefore, as shown in FIGS. 3 (A) and 3 (B), the upper blowing nozzle 12 is rotated upward, so that it almost adheres along the surfaces a, a1 and a2 of the blowing nozzle 12. The primary air flow is attracted to the secondary air flow that is about to "flow" or "stick", and this primary air flow is deflected upward.

  As a result, when the conditioned air is blown horizontally as the primary air flow from the air outlet 3, the conditioned air flow is deflected upward and reaches far away, and the conditioned air travels over a wide area in the air-conditioned room. Deliver comfortable air conditioning.

  At that time, the primary air flow is attracted to the secondary air flow, so that, for example, the primary air flow is moved up and down as in the case where the air flow is forcibly deflected by an up-and-down air direction plate (not shown) provided at the air outlet 3. Since there is no possibility of causing a loss due to air resistance when it hits the wind direction plate, the air blowing performance is good, and it is quiet because there is no possibility of causing noise.

  At the same time that the upper blowing nozzle 12 is turned upward, the lower blowing nozzle 13 is turned upward to bring the upper blowing nozzle 12 and the lower blowing nozzle 13 into a substantially parallel state. The conditioned air blown out as the primary air flow from the blow-out port 3 can be efficiently delivered to the far side without diffusing.

  Further, when the conditioned air is blown downward, as shown in FIG. 4 (A) and FIG. 4 (B), the lower blow nozzle 13 is rotated downward, whereby the surfaces b, b1, The primary air flow is attracted to the secondary air flow that is about to “stick” or “stick” along b2, and this primary air flow is deflected downward.

  As a result, when conditioned air is blown out as primary air flow from the air outlet 3 during operation, the conditioned air flow is deflected downward to reach the floor surface, and the conditioned air reaches the floor surface. And comfortable air conditioning can be realized.

  At that time, the primary air flow is attracted to the secondary air flow, so that, for example, the primary air flow is moved up and down as in the case where the air flow is forcibly deflected by an up-and-down air direction plate (not shown) provided at the air outlet 3. Since there is no possibility of causing a loss due to air resistance when it hits the wind direction plate, the air blowing performance is good, and it is quiet because there is no possibility of causing noise.

  At the same time as the lower blowing nozzle 13 is rotated downward, the upper blowing nozzle 12 is rotated downward to bring the upper blowing nozzle 12 and the lower blowing nozzle 13 into a substantially parallel state. The conditioned air blown out as the primary air flow from the outlet 3 can be efficiently delivered to the floor without being diffused.

  The diffuser portion 12g of the upper blow nozzle 12 provided in the blower outlet 3 has a diffuser surface 12g1 formed so as to be continuous with the front guider 9, and the diffuser portion 13g of the lower blow nozzle 13 is the rear guider 10. The diffuser surface 13g1 is formed so as to be continuous with.

  The guide portion 12h of the upper blowing nozzle 12 has a guide surface 12h1 disposed at an angle with respect to the diffuser surface 12g1, and the downstream side of the guide surface 12h1 is terminated by a flare surface 12i that spreads outward. doing. Further, the guide portion 13h of the lower blowing nozzle 13 has a guide surface 13h1 disposed at an angle with respect to the diffuser surface 13g1, and the downstream side of the guide surface 13h1 is a flare surface that spreads outward. Terminates at 13i.

  The diffuser portion 12g of the upper blowing nozzle 12 and the diffuser portion 13g of the lower blowing nozzle 13 have the diffuser surface 12g1 and the diffuser surface 13g1 that are continuous with the front guider 9 and the rear guider 10, respectively. The conditioned air exchanged with the refrigerant and sent to the downstream side of the cross flow fan 5 is blown out into the air-conditioned room along the diffuser surface 12g1 continuous to the front guider 9 and the diffuser surface 13g1 continuous to the rear guider 10.

  As described above, according to the configuration of the present invention, the fan casing 7 is provided with the upper and lower outlet nozzles 12 and 13 for deflecting the wind direction at the outlet 3 and the sirocco fan 8 is housed in the side portion of the main body 1. And the air ducts 14 and 15 that connect the fan casing 7 and the upper and lower blowing nozzles 12 and 13, so that the upper and lower blowing nozzles 12 are rotatable by the Coanda effect and the attracting effect. , 13 is an air conditioner capable of deflecting the conditioned air blown from the air outlet 3 in the wind direction. In addition, compared to the case where the wind direction control blower fan 109 as in the background art described above is installed in the lower part of the front surface in the main body 1, an air conditioner that suppresses an increase in the depth dimension is obtained.

  In the embodiment of the present invention, the upper blowing nozzle 12 is provided at the upper edge 3a of the outlet 3 and the lower blowing nozzle 13 is provided at the lower edge 3b. Without being limited to the configuration, any one of the blowing nozzle 12 and the blowing nozzle 13 may be provided.

DESCRIPTION OF SYMBOLS 1 Main body 1a Front panel 1b Opening and closing panel 2 Suction port 3 Outlet 4 Heat exchanger 5 Cross flow fan 6 Fan motor 7 Fan casing 71 Intake part 72,73 Discharge part 8 Sirocco fan 81 Fan motor 9 Front guider 10 Rear guider 11 Both side walls 12 Upper blowing nozzle 12a Outlet 12b Inner wall 12c Outer wall 12d Inlet side 12e Outlet side 12f Coanda surface 12g Diffuser portion 12g1 Diffuser surface 12h Guide portion 12h1 Guide surface 12i Flare surface 121 Drive motor 122 Gear 123 Lower support portion 124 Side support portion 124 Pivoting portion 124 Nozzle 13a Outlet 13b Inner wall 13c Outer wall 13d Inlet side 13e Outlet side 13f Coanda surface 13g Diffuser portion 13g1 Diffuser surface 13h Guide portion 13h1 Guide surface 13i Rare surface 131 driving motor 132 gear 133 connecting portion 134 pivot portion 14 the air duct 141 air coupler 15 air duct 151 air coupler

Claims (1)

The main body is provided with an inlet and an outlet, and a heat exchanger and a cross-flow fan are arranged in an air passage connecting the inlet and the outlet, and the conditioned air heat-exchanged with the refrigerant in the heat exchanger is provided. An air conditioner that blows out from the air outlet,
A hollow, plate-like shape in which a lower end portion of the outlet has a jet outlet directed to the front of the outlet at the rear end of the upper surface, and a Coanda surface and a diffuser surface are continuously provided in front of the outlet. A blower nozzle is provided rotatably, a blower is disposed on one side of the main body, a blower duct is provided that connects the blower nozzle and the blower and supplies air from the blower to the blower nozzle. Air conditioner characterized by.