CN101360954A - Air conditioner - Google Patents

Abstract

An air conditioner comprises an air intake port (4) for introducing the air in a room into the casing of an indoor machine (1), an air discharge port (5) formed at the lower part of the casing, an air flow path (6) for communicating the air intake port (4) with the air discharge port (5), an indoor heat exchanger (9) having refrigerant tubes arranged in a plurality of stages and rows parallel with each other and disposed curvedly along the inner surface of the casing so as to face the air intake port (4), and a cross flow fan (7) disposed between the indoor heat exchanger (9) in the air flow path (6) and the air discharge port (5). The air flow path (6) includes a forward guide part (6a) which guides the air to the forward lower side and is gradually increased in its flow passage area toward the downstream side. The sum of the lengths of the upper wall (6b) and the lower wall (6c) of the air flow path (6) closer to the downstream side than the cross flow fan (7) is set to 3.5 times the diameter of the cross flow fan (7) or more.

Description

Air conditioner

Technical field

The present invention relates to a kind of to regulating from the indoor air that is taken into and it being passed out to indoor air conditioner.

Background technology

Existing air conditioner is disclosed in the patent documentation 1,2.The air conditioner of patent documentation 1 has reduced the pressure loss of blowing fan by the Thickness Distribution of the blade of improvement blowing fan.Thus, realized the economical energy expenditure of air conditioner.And the air conditioner of patent documentation 2 has the moveable panel that the suction inlet to the casing front that is arranged at indoor set stops up.When driving air conditioner, mobile moveable panel, open significantly suction inlet is taken into indoor air.Thus, the pressure loss when sucking can be reduced, the economical energy expenditure of air conditioner can be realized.

Patent documentation 1: the spy opens the 2003-028089 communique

Patent documentation 2: the spy opens the 2000-111082 communique

In recent years, extensively appeal to preserve our planet environment, therefore, the strong further economical energy expenditure of wishing to realize the so-called white household electrical appliances.But, according to above-mentioned existing air conditioner, can to indoor air, fiercely send the adjusting air from blow-off outlet.At this moment, the wall of the path that exists suddenly disappears originally, regulates air and is seized kinetic energy because of the viscosity of air by ambient air, becomes and the atmospheric pressure equal static pressure.Since this phenomenon directly with send air-flow one gas from blow-off outlet and carry out, so, can significantly confuse near the air-flow the blow-off outlet, thereby produce the pressure loss of following therewith.Therefore, exist the problem that can't fully realize the economical energy expenditure of air conditioner.

Summary of the invention

The objective of the invention is to, a kind of air conditioner that can further realize economical energy expenditure is provided.

To achieve these goals, air conditioner of the present invention possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; Be arranged side by side refrigerant pipe to multistage and multiple row, and along the bending of aforementioned casing inner face, in aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; And the cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet; It is characterized in that, aforementioned air-supply path has forwards below guiding air, the place ahead guide portion of enlarging more of flow path area more downstream, to rely on the length of upper wall in aforementioned air-supply path in downstream and the length sum of lower wall than aforementioned cross flow fan, be made as more than 3.5 times of diameter of aforementioned cross flow fan.

Constitute according to this,, indoor air is taken in the casing, it is circulated in the air-supply path from suction inlet by the driving of cross flow fan.This air is advanced by bending in refrigerant pipe, is provided with multistage with above-below direction and is arranged side by side the big indoor heat converter of the pressure loss of multiple row along the depth direction to carry out heat exchange and be conditioned.Regulate upper wall and the lower wall of air from the exhaust side of cross flow fan along the air-supply path, enlarge on one side flow path area via the place ahead guide portion circulate, sent from blow-off outlet.At this moment, slowly slow down, make kinetic energy be transformed to static pressure, be recovered as static pressure along the upper wall in air-supply path and the air-flow of lower wall.

And, the present invention is in the air conditioner of above-mentioned formation, it is characterized in that, possesses first wind direction board that the wind direction of aforementioned blow-off outlet can be changed up and down, when air conditioner turned round, the order that begins the front end of the front end by aforementioned upper wall, the front end of first wind direction board, aforementioned lower wall from top, the place ahead was configured.Constitute according to this, the kinetic energy of the gas that in the air-supply path, circulates can be from flow velocity slow below reclaim successively.

And the present invention is characterized in that in the air conditioner of above-mentioned formation, and second wind direction board is set below first wind direction board, the front-end configuration of first wind direction board is relied on the position in the place ahead at the front end than second wind direction board.

In addition, the present invention is in the air conditioner of above-mentioned formation, it is characterized in that, possess and make aforementioned blow-off outlet first, second variable wind direction board up and down, thereby aforementioned upper wall has the inclined plane that begins inclination above bend bending forwards from the terminal of aforementioned the place ahead guide portion upper surface, the rear end of first wind direction board is configured in the position that relies on the place ahead than aforementioned bend, and is configured in the position that relies on the rear than aforementioned bend than the rear end of second wind direction board that first wind direction board relies on the below.

Constitute according to this, along the air-flow of the upper wall circulation in air-supply path by the second wind direction board bending, the top circulation forwards along the inclined plane.By the kinetic energy of the lower stream of airflow of the second wind direction board bending, be transformed to static pressure and reclaim by the stream that forms between second wind direction board and first wind direction board.By the kinetic energy of the upper air of the second wind direction board bending, be transformed to static pressure and reclaim by the stream that forms between first wind direction board and the inclined plane.

In addition, the present invention is characterized in that in the air conditioner of above-mentioned formation, and aforementioned inclined plane is made as 10 °～15 ° with first angle that wind direction board becomes and angle that first, second wind direction board becomes.Constitute according to this, the wall that air-flow can not constitute from the inclined plane by first, second wind direction board and air-supply path is peeled off, and can circulate along wall smoothly.

And the present invention is characterized in that in the air conditioner of above-mentioned formation, and the 3rd wind direction board is set below second wind direction board, and angle that second, third wind direction board becomes is made as 10 °～15 °.Constitute according to this, air-flow can not peeled off from the wall that is made of second, third wind direction board, can circulate along wall smoothly.

And the present invention is characterized in that in the air conditioner of above-mentioned formation, and the wind direction board of below is made as 10 °～15 ° with the angle that tangent line becomes of the terminal of the lower wall of aforementioned the place ahead guide portion with being configured in.Constitute according to this, the wall that air-flow can not constitute from the wind direction board by subordinate is peeled off, and can circulate along wall smoothly.

In addition, the present invention is characterized in that in the air conditioner of above-mentioned formation, the length of aforementioned upper wall is made as more than 1.5 times of diameter of aforementioned cross flow fan.

In addition, air conditioner of the present invention possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; Be arranged side by side refrigerant pipe to multistage and multiple row, and along the bending of aforementioned casing inner face, in aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; The cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet; With the wind direction that can make aforementioned blow-off outlet change up and down first, second wind direction board, it is characterized in that, aforementioned air-supply path has from aforementioned cross flow fan below guiding forwards air, the place ahead guide portion of enlarging more of flow path area more downstream, to rely on the length of upper wall in the aforementioned air-supply path in downstream than aforementioned cross flow fan, be made as more than 1.5 times of diameter of aforementioned cross flow fan, and, aforementioned upper wall has from the terminal of aforementioned the place ahead guide portion and begins in the bend bending, thereby the inclined plane of top inclination forwards, the rear end of first wind direction board is configured in the position that relies on the place ahead than aforementioned bend, and is configured in the position that relies on the rear than aforementioned bend than the rear end of second wind direction board that first wind direction board relies on the below.

Constitute according to this,, indoor air is taken in the casing, it is circulated in the air-supply path from suction inlet by the driving of cross flow fan.This air is advanced by bending in refrigerant pipe, with above-below direction multistage and front and back is set and is arranged side by side the big indoor heat converter of the pressure loss of multiple row and carries out heat exchange and be conditioned.Regulate upper wall and the lower wall of air, enlarge flow path area on one side guide portion is interior forwardly and circulate from the exhaust side of cross flow fan along the air-supply path.Along the air-flow of the upper wall circulation in air-supply path by the second wind direction alteration board bending, the top circulation forwards along the inclined plane.By the lower stream of airflow of the second wind direction alteration board bending, slowly slow down by the stream that between second wind direction alteration board and first wind direction alteration board, forms, kinetic energy is transformed to static pressure, is recovered as static pressure.By the upper air of the second wind direction alteration board bending, slowly slow down by the stream that between first wind direction alteration board and inclined plane, forms, kinetic energy is transformed to static pressure, is recovered as static pressure.

And the present invention is characterized in that in the air conditioner of above-mentioned formation, and aforementioned inclined plane is made as 10 °～15 ° with first angle that wind direction board becomes and angle that first, second wind direction board becomes.

And the present invention is characterized in that in the air conditioner of above-mentioned formation, and the 3rd wind direction board is set below second wind direction board, and angle that second, third wind direction board becomes is made as 10 °～15 °.

In addition, the present invention is characterized in that in the air conditioner of above-mentioned formation, and the wind direction board of below is made as 10 °～15 ° with the angle that tangent line becomes of the terminal of the lower wall of aforementioned the place ahead guide portion with being configured in.

In addition, the present invention is in the air conditioner of above-mentioned formation, it is characterized in that, when air conditioner turns round, be configured from the order of top, the place ahead by the front end of the front end of aforementioned upper wall, the front end of first wind direction board, the front end of second wind direction board, aforementioned lower wall.Constitute according to this, the kinetic energy of the gas that in the air-supply path, circulates can be from flow velocity slow below reclaim successively.

And air conditioner of the present invention is characterized in that, possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; In aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; And the cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet; To rely on the length of upper wall in the aforementioned air-supply path in downstream than aforementioned cross flow fan, be made as more than 1.5 times of diameter of aforementioned cross flow fan.

Constitute according to this,, indoor air is taken in the casing, it is circulated in the air-supply path from suction inlet by the driving of cross flow fan.This air is conditioned by carrying out heat exchange with indoor heat converter, regulates upper wall and the lower wall circulation of air from the exhaust side of cross flow fan along the air-supply path, is sent from blow-off outlet.At this moment, slowly slow down along the upper wall in air-supply path and the air-flow of lower wall, kinetic energy is transformed to static pressure, is recovered as static pressure.

And air conditioner of the present invention is characterized in that, possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; In aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; And the cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet; To rely on the length of upper wall in aforementioned air-supply path in downstream and the length sum of lower wall than aforementioned cross flow fan, be made as more than 3.5 times of diameter of aforementioned cross flow fan.

Constitute according to this,, indoor air is taken in the casing, it is circulated in the air-supply path from suction inlet by the driving of cross flow fan.This air is conditioned by carrying out heat exchange with indoor heat converter, regulates upper wall and the lower wall circulation of air from the exhaust side of cross flow fan along the air-supply path, is sent from blow-off outlet.At this moment, slowly slow down, make kinetic energy be transformed to static pressure, be recovered as static pressure along the upper wall in air-supply path and the air-flow of lower wall.

The invention effect

According to the present invention, owing to will rely on the length of upper wall in air-supply path in downstream and the length sum of lower wall than cross flow fan, be made as more than 3.5 times of diameter of cross flow fan, so, in air conditioner when running,, air can be along the upper wall in air-supply path and the lower wall long distance that circulates smoothly.Thus, near confusing of the air-flow the blow-off outlet is few, and the pressure loss that accompanies with it reduces.And, slowed down before fully becoming low speed along the air of long upper wall and lower wall always, kinetic energy is transformed to static pressure.Therefore, can fully reclaim the kinetic energy of air-flow, reduce to rise, thereby can realize the economical energy expenditure of air conditioner based on the static pressure of cross flow fan.

And, because indoor heat converter is by multiple row and multistagely constitute, so, even under the situation of utilizing the big indoor heat converter of the pressure loss, also can fully reclaim the kinetic energy of air-flow, realize the economical energy expenditure of air conditioner.And, owing to be provided with forwards below guiding air, the place ahead guide portion of enlarging more of flow path area more downstream, so, air-flow is slowly slowed down, fully reclaim kinetic energy.

And, according to the present invention, because during the air conditioner running, the order of front end that begins front end, the lower wall of front end, first wind direction board by upper wall from the place ahead top disposes, so, can begin to reclaim successively from slow, the low-density kinetic energy of the flow velocity of below, but the kinetic energy of high efficiente callback air-flow.

In addition, according to the present invention, because second wind direction board is set below first wind direction board, the front-end configuration of first wind direction board is relied on the position in the place ahead at the front end than second wind direction board, so, can begin to reclaim successively from slow, the low-density kinetic energy of the flow velocity of below, but the kinetic energy of high efficiente callback air-flow.

In addition, according to the present invention, because the rear end of first wind direction board is configured in the position that relies on the place ahead than the bend between the place ahead guide portion upper surface and the inclined plane, and the rear end that relies on second wind direction board of below than first wind direction board is configured in the position that relies on the rear than this bend, so, can change air flow direction by second wind direction board, make it along the inclined plane.And, can begin to reclaim successively from slow, the low-density kinetic energy of the flow velocity of below, but the kinetic energy of high efficiente callback air-flow.

And, according to the present invention, because the inclined plane is made as 10 °～15 ° with first angle that wind direction board becomes and angle that first, second wind direction board becomes, so, stream between the inclined plane and first wind direction board and the stream between first, second wind direction board have enlarged stream continuously, make air-flow can not peel off, and circulate along wall smoothly from wall.Thus, the kinetic energy of air-flow static pressure can be transformed to smoothly, kinetic energy can be reclaimed efficiently.

In addition, according to the present invention, because second wind direction board is made as 10 °～15 ° with the 3rd angle that wind direction board becomes that relies on the below than second wind direction board, so, stream between second, third wind direction board has enlarged stream continuously, makes air-flow can not peel off from wall, and circulates along wall smoothly.Thus, the kinetic energy of air-flow static pressure can be transformed to smoothly, kinetic energy can be reclaimed efficiently.

In addition, according to the present invention, because will being configured in, the wind direction board of below is made as 10 °～15 ° with the angle that tangent line becomes of the terminal of aforementioned lower wall, so, stream between the lower wall in the wind direction board of subordinate and air-supply path is enlarged stream continuously, make air-flow can not peel off, and circulate along wall smoothly from wall.Thus, the kinetic energy of air-flow static pressure can be transformed to smoothly, kinetic energy can be reclaimed efficiently.

And, according to the present invention, owing to will rely on the length of upper wall in the air-supply path in downstream than cross flow fan, be made as more than 1.5 times of diameter of cross flow fan, so, air conditioner when running, the air long distance that can circulate smoothly along the upper wall in air-supply path.Thus, near confusing of the air-flow the blow-off outlet is few, and the pressure loss that accompanies with it reduces.And, slowed down before fully becoming low speed along the air of long upper wall and lower wall always, kinetic energy is transformed to static pressure.Therefore, can fully reclaim the kinetic energy of air-flow, reduce to rise, thereby can realize the economical energy expenditure of air conditioner based on the static pressure of cross flow fan.

And, can increase the arrival distance that is recovered kinetic energy and has reduced the air-flow of flow velocity.Thus, the air of sending from blow-off outlet can arrive the ceiling in room, successively with the wall transmission of the opposed wall of air conditioner, ground and air conditioning pusher side.Therefore, the air-flow of regulating air can spread all over each corner in room, makes air-flow significantly stir in whole room.Thereby, can make the temperature distribution homogenization of the residential area integral body except the part of indoor top, can access the comfortable space that does not almost directly blow to the wind of health.

In addition, because indoor heat converter is by multiple row and multistagely constitute, so, even under the situation of having utilized the big indoor heat converter of the pressure loss, also can fully reclaim the kinetic energy of air-flow, realize the economical energy expenditure of air conditioner.And, owing to be provided with forwards below guiding air, the place ahead guide portion of enlarging more of flow path area more downstream, so, air-flow is slowly slowed down, fully reclaim kinetic energy.

In addition, because the rear end of first wind direction board is configured in the position that relies on the place ahead than the bend between the place ahead guide portion upper surface and inclined plane, and the rear end that relies on second wind direction board of below than first wind direction board is configured in the position that relies on the rear than this bend, so, can make the air-flow bending by second wind direction board, make it along the inclined plane.And, can begin to reclaim successively from slow, the low-density kinetic energy of the flow velocity of below, but the kinetic energy of high efficiente callback air-flow.

And, according to the present invention, because when air conditioner turns round, the order of front end that begins front end, the lower wall of front end, second wind direction board of front end, first wind direction board by upper wall from the place ahead top disposes, so, can begin to reclaim successively from slow, the low-density kinetic energy of the flow velocity of below, but the kinetic energy of high efficiente callback air-flow.

Description of drawings

The side view cutaway drawing of state when Fig. 1 is the running of indoor set of air conditioner of expression first embodiment of the invention.

Fig. 2 is the side view cutaway drawing of detailed structure in air-supply path of indoor set of the air conditioner of expression first embodiment of the invention.

Fig. 3 is the side view cutaway drawing of detailed structure of bend in air-supply path of indoor set of the air conditioner of expression first embodiment of the invention.

Fig. 4 is the side view cutaway drawing of the state of the indoor set running of the air conditioner of expression first embodiment of the invention when stopping.

Fig. 5 is near the side view cutaway drawing of the detailed structure the blow-off outlet of indoor set of air conditioner of expression first embodiment of the invention.

Fig. 6 is the graph of a relation of the input of the air quantity of cross flow fan (cross flow fan) of indoor set of air conditioner of expression first embodiment of the invention and fans drive motor.

Fig. 7 is the side view cutaway drawing of comparative example of indoor set of the air conditioner of expression first embodiment of the invention.

Fig. 8 is the figure that the passing to the static pressure of the comparative example of the indoor set of the air conditioner of first embodiment of the invention describes.

Fig. 9 is the figure of passing of static pressure of comparative example of indoor set of the air conditioner of expression first embodiment of the invention.

Figure 10 is the figure that the passing to the static pressure of the indoor set of the air conditioner of first embodiment of the invention describes.

Figure 11 is the figure of passing of static pressure of indoor set of the air conditioner of expression first embodiment of the invention.

Figure 12 is the graph of a relation of consumption electric power of length, cross flow fan of length, lower wall of upper wall in air-supply path of indoor set of the air conditioner of expression first embodiment of the invention.

Figure 13 is the length, the length of lower wall, the graph of a relation that reaches distance of cross flow fan air-flow of upper wall in air-supply path of indoor set of the air conditioner of expression first embodiment of the invention.

Figure 14 is the side view cutaway drawing of the state of the indoor set running of the air conditioner of expression second embodiment of the invention when stopping.

Figure 15 is the side view cutaway drawing of state in indoor set when running of the air conditioner of expression second embodiment of the invention.

Figure 16 is the side view cutaway drawing of the state of the indoor set running of the air conditioner of expression third embodiment of the invention when stopping.

Figure 17 is the side view cutaway drawing of state in indoor set when running of the air conditioner of expression third embodiment of the invention.

Figure 18 is the side view cutaway drawing of state in indoor set when running of the air conditioner of expression four embodiment of the invention.

Figure 19 is the side view cutaway drawing of state in indoor set when running of the air conditioner of expression fifth embodiment of the invention.

Description of reference numerals

1 indoor set

2 casings (cabinet)

3 front panels (front panel)

4 suction inlets

5 blow-off outlets

6 air-supply paths

6a the place ahead guide portion

The 6b upper wall

The 6b5 inclined plane

The 6c lower wall

7 cross flow fans

8 air cleaners

9 indoor heat converters

10,13 drain pans (drain pan)

111,112,113 horizontal shutters

12 vertical shutters

21 moveable panel

22,23 turning cylinders

61 temperature sensors

The specific embodiment

＜the first embodiment 〉

Following with reference to accompanying drawing, embodiments of the present invention are described.Fig. 1 is the side view cutaway drawing of indoor set of the air conditioner of expression first embodiment.The indoor set 1 of air conditioner is keeping main part by casing 2, and dismounting is equipped with front panel 3 freely on casing 2.Constitute the casing of indoor set 1 by casing 2 and front panel 3.

Casing 2 side in the wings is provided with claw (not shown), by this claw is engaged with installing plate (not shown) on the sidewall W1 that is installed in the room, realizes supporting.The gap location of the bottom of the bottom of plate 3 and casing 2 is provided with blow-off outlet 5 in front.Blow-off outlet 5 form along the width of indoor set 1 extend approximate rectangular, be configured in the face of below, the place ahead.The upper surface of plate 3 is provided with the suction inlet 4 of lattice-shaped in front.

Box house at indoor set 1 is formed with the air-supply path 6 that links suction inlet 4 and blow-off outlet 5.In air-supply path 6, dispose the cross flow fan 7 that is used to send air.Air-supply path 6 is surrounded by upper wall 6b and lower wall 6c in the downstream of cross flow fan 7.And air-supply path 6 has the place ahead guide portion 6a, is used for the air below guiding forwards that will be sent by cross flow fan 7.The place ahead guide portion 6a forms more downstream, and flow path area enlarges more.

Fig. 2 is the side view cutaway drawing of detailed structure in air-supply path 6 in the downstream of expression cross flow fan 7.The upper wall 6b in air-supply path 6 has stable (stabilizer) 6b7 of portion along the side face of cross flow fan 7.Stabilizers 6b7 extends and forms along the discharge directions of cross flow fan 7, and the upper surface 6b3 in the lower end with the place ahead guide portion 6a is connected.

The upper surface 6b3 of the place ahead guide portion 6a forwards below tilts.Thereby be formed with the inclined plane 6b5 that tilts via the crooked upward top forwards of bend 6b4 from the terminal of the upper surface 6b3 of the place ahead guide portion 6a.Bend 6b4 constitutes by relaxing level and smooth curved surface.

The lower wall 6c in air-supply path 6 has along the rear guide part 6c5 of the side face of cross flow fan 7.Rear guide part 6c5 extends and forms along the discharge directions of cross flow fan 7, and lower wall 6c forms the helical form curved surface of the lower surface 6c3 that begins to comprise the place ahead guide portion 6a from the lower end of rear guide part 6c5.

The upper surface 6b3 of the place ahead guide portion 6a becomes angle α to form about 20 ° with lower surface 6c3.Inclined plane 6b5 becomes angle β to form about 20 ° with horizontal plane.The upper surface 6b3 of the place ahead guide portion 6a becomes angle γ to form 5 ° with horizontal plane.Therefore, the upper surface 6b3 of the place ahead guide portion 6a and angle that 6b5 becomes, inclined plane (β+γ) form 25 °.Preferred angle α, β, γ form respectively about 15 °～20 °, below 30 °, about 0 °～10 °.

If (β+γ) is below 17 °, then can not peel off from wall along the air of the wall of stream, can be swimmingly with little pressure loss circulation at the angle.But, a plurality of owing to stream being divided into as described later by horizontal shutter 111,112,113, so, the angle (β+γ) greater than 17 °.For this reason, horizontal shutter 112 and bend 6b4 arranged opposite with the stage casing can suppress peeling off of air-flow.

In addition, as shown in Figure 3, in bend 6b4, be provided with a plane 6f at least, can connect the end of plane 6f respectively by level and smooth curved surface 6e.Under this situation, the upper surface 6b3 of the place ahead guide portion 6a becomes angle θ 5 and plane 6f to become angle θ 6 can form below 17 ° with inclined plane 6b5 with plane 6f.Under situation with a plurality of plane 6f, be equipped with between the plane become the angle all to form below 17 °.Thus, can not peel off, can make its circulation with the little pressure loss from wall along the air of the wall of stream.Therefore, can improve energy and save performance.

And when the diameter with cross flow fan 7 was made as D, the upper wall 6b in the air-supply path 6 in the downstream of cross flow fan 7 and the length of lower wall 6c formed 1.9D and 2.1D respectively.Front end 6b1, the 6c1 of stabilizers 6b7 and rear guide part 6c5 is set near the diametric(al) vertical with the discharge directions of cross flow fan 7, becomes the initial point of upper wall 6b and lower wall 6c.Extending to form at stabilizers 6b7 and rear guide part 6c5 under the situation of suction side of cross flow fan 7, also can be minimum anterior diastema (front gap) 6b2 and the post gap 6c2 part initial point as upper wall 6b and lower wall 6c with the distance with cross flow fan 7.

The lower end butt of the front end of inclined plane 6b5 and front panel 3, the terminal 6b6 of formation upper wall 6b.The lower surface front end of casing 2 becomes the small curvature radius formation of the point of inflection with the terminal 6c4 of the lower surface 6c3 of the place ahead guide portion 6b.This terminal 6c4 becomes the terminal point (the following terminal that sometimes 6c4 is called lower wall 6c) of lower wall 6c.Wherein, 98 tangent lines of terminal 6b4 of having represented the lower surface 6c3 of the place ahead guide portion 6a.

Among Fig. 1, be provided with the vertical shutter 12 that blows out angle that can change left and right directions forwardly among the guide portion 6a.Blow-off outlet 5 places be provided with can with above-below direction blow out that angle changes to above the place ahead, below the horizontal direction, the place ahead and under to a plurality of horizontal shutter 111,112,113.Being provided with air cleaner 8, be used for catching, removing the dust that contains from suction inlet 4 inhaled airs with front panel 3 opposed positions.In the space that forms between plate 3 and the air cleaner 8, be provided with air cleaner clearing apparatus (not shown) in front.Utilize the air cleaner clearing apparatus to remove the dust of accumulating in the air cleaner 8.

Dispose indoor heat converter 9 between cross flow fan 7 in air-supply path 6 and the air cleaner 8.Indoor heat converter 9 has and is provided with multistage and the refrigerant pipe (not shown) of the bending of multiple row has been arranged in front and back at above-below direction, bends to multistage according to the mode along front panel 3.Indoor heat converter 9 is connected with without compressor (not shown) of configuration, by the driving of the compressor kind of refrigeration cycle that turns round.By the running of kind of refrigeration cycle, when cold air operation, indoor heat converter 9 is cooled to the low temperature that is lower than environment temperature.In addition, when heating installation turned round, indoor heat converter 9 was heated to be the high temperature of projecting temperature.

The temperature sensor 61 that between indoor heat converter 9 and air cleaner 8, is provided with electric dust exhaust apparatus (not shown) and the temperature of inhaled air is detected.Sidepiece at indoor set 1 is provided with the control part (not shown) that the driving of air conditioner is controlled.Bottom in the front and back of indoor heat converter 9 is provided with drain pan 10,13, and the dewfall that falls from indoor heat converter 9 when being used for cold air or dehumidifying is collected.

In the air conditioner of above-mentioned formation, as shown in Figure 4, horizontal shutter 111,112 is configured in and covers the blow top in path 6 and the position of bottom under the running halted state of air conditioner.Horizontal shutter 113 is configured in air-supply 6 inside, path.Thus, stopped up blow-off outlet 5.At this moment, horizontal shutter 111,112 former configuration along front panel 3.In addition, horizontal shutter 112 is configured to connect the lower end of horizontal shutter 111 and the bottom surface of casing 2.Thus, can not damage the attractive in appearance of indoor set 1.

Upper wall 6b with air-supply path 6 in the face of a side, implemented dewfall and prevented scheme.Prevent scheme as dewfall, can utilize heat-barrier material to form upper wall 6b, also can heat-barrier material be set at the upper surface of upper wall.In addition, also can adopt heat-barrier material other dewfall in addition to prevent scheme.And even just in case not taken place under the situation of dewfall in the face of a side with air-supply path 6 of upper wall 6b, this dew also can be directed to drain pan 10.Therefore, can obtain the high air conditioner of problem, reliability that do not have dew to cause.

If the entry into service air conditioner for example carries out cold air operation, then as shown in Figure 1, horizontal shutter 111,112,113 is configured to blow-off outlet 5 open.Vertical shutter 12 is towards set direction.Cross flow fan 7 is driven, and makes that kind of refrigeration cycle turns round from the refrigerant flow direction indoor heat converter 9 of off-premises station (not shown).Thus, air is inhaled into the indoor set 1 from suction inlet 4, is removed the dust that contains in the air by air cleaner 8.And, be taken into air in the indoor set 1 and indoor heat converter 9 and carry out heat exchange and be cooled.

By indoor heat converter 9 cooled adjusting air, left and right directions and above-below direction by vertical shutter 12 and 111,112,113 restrictions of horizontal shutter towards, as arrow E, be sent indoor along inclined plane 6b5 towards top, the place ahead.Thus, send the top, the place ahead of regulating air above indoor set 1 is in forwards and blow out state.

Pass out to indoor adjusting air from blow-off outlet 5 along inclined plane 6b5 towards top, the place ahead, arrive the ceiling face S (with reference to Fig. 2) in room.Then, be delivered to sidewall W1 with indoor set 1 opposed sidewall, ground, indoor set 1 side successively from ceiling face S, sucked by indoor set 1 based on wall attachment effect.

Thus, can not make cold wind or warm braw always directly blow to the user, can prevent user's discomfort, can improve comfortableness.And, when cold air, can not make user's the local reduction of body temperature, can improve the security on the health.In addition, owing to air-flow stirs significantly in room integral body, so it is even near design temperature that indoor Temperature Distribution becomes.That is, except the part of top, room, user's residential area global approximation as one man becomes design temperature, can obtain temperature deviation comfortable space little, that can directly dry to the user hardly.

Fig. 5 is near the side view cutaway drawing of the detailed structure expression blow-off outlet this moment 5.Higher level's horizontal shutter 111 is opposed with inclined plane 6b5, and the rear end relies on the place ahead configuration than bend 6b6.The horizontal shutter 112 of middle rank is opposed with bend 6b4, and the rear end relies on the rear configuration than bend 6b4.And,, dispose the front end of the horizontal shutter 113 of the front end of the front end of the terminal 6b6 of upper wall 6b, higher level's horizontal shutter 111, intermediate horizontal shutter 112, subordinate, the terminal 6c4 of lower wall 6c in order from the place ahead top.

And, be that 13 ° mode disposes horizontal shutter 111 according to inclined plane 6b5 and higher level's angle θ 1 that horizontal shutter 111 becomes.According to higher level's horizontal shutter 111 and the angle θ 2 that horizontal shutter 112 becomes of middle rank is that 10 ° mode disposes horizontal shutter 112.According to the horizontal shutter 112 of middle rank and the angle θ 3 that horizontal shutter 113 becomes of subordinate is that 10 ° mode disposes horizontal shutter 113.And, the horizontal shutter 113 of subordinate and tangent line 98 to become angle θ 4 be 12 °.

Because according to angle θ 1～θ 4 is that mode below 17 ° has disposed horizontal shutter 111,112,113, so, for the air-flow of the stream of being divided by each horizontal shutter 111,112,113, can be suppressed to Min. from peeling off of each stream wall.Therefore, can make the circulation of airflow smooth ground, can improve energy and save performance.

Fig. 6 has represented the air quantity of cross flow fan 7, has driven the relation of the needed input of fans drive motor (not shown) (consumption electric power) of cross flow fan 7 when sending this air quantity.The longitudinal axis is that (unit: W), transverse axis is the air quantity (unit: m of cross flow fan 7 for the input of fans drive motor ³/ min).

Among the figure, K1 represents present embodiment, and as shown in Figure 5, the situation of horizontal shutter 111,112,113 has been disposed in expression.K2 represents the 4th embodiment of Figure 18 of being described in detail later, and present embodiment has been omitted horizontal shutter 113 relatively.K3 represents the 5th embodiment of Figure 19 of being described in detail later, and present embodiment has been omitted horizontal shutter 113 relatively, and has changed the configuration and the shape of horizontal shutter 111,112.

In addition, the comparative example of K4 presentation graphs 7.In comparative example, omitted horizontal shutter 113, the length of upper wall 6b and lower wall 6c is made as 1D, 2.1D respectively.This becomes the upper wall 6b of common formation in the existing air conditioner and the length of lower wall 6c.In addition, horizontal shutter 111,112 is configured to approximate five equilibrium stream, makes top, guiding the place ahead, airflow smooth ground.

By the comparison of K1 and K2, can hold horizontal shutter 113 is configured the effect of being brought as shown in Figure 5.By the comparison of K2 and K3, can hold the shape of horizontal shutter 111,112 and the effect that configuration brings.By the comparison of K1 and K4, can hold the effect that the length of upper wall 6b and lower wall 6c is brought.

According to this figure, the situation of K1～K3 is compared with comparative example (K4), can drive with fewer input (consumption electric power).In addition, if the noise during at the more same air quantity of situation of K1～K4, then the relative K4 of K1 becomes the low noise of low about 2dB, and K2, K3 and K1 are equal to, and be bigger than K1 noise on grade of errors.

Fig. 8～Figure 11 is the figure that the difference to the consumption electric power of the cross flow fan 7 of present embodiment (K1) and comparative example (K4) describes.Fig. 8 is the side view cutaway drawing of indoor set 1 that schematically illustrates the state of K4.Fig. 9 is the figure of passing of static pressure situation of air-flow that has schematically illustrated the internal circulation of indoor set 1 at this moment, and the longitudinal axis is represented the static pressure of air-flow, and transverse axis is represented the air supply direction of air-flow.

If drive cross flow fan 7, then the air outside that equates with atmospheric pressure of static pressure is inhaled in the casing of indoor set 1, has produced air-flow.The circulation from suction inlet 4, indoor heat converter 9, air-supply path 6 of this air-flow, when circulating in indoor heat converter 9, air is conditioned, and becomes the adjusting air.At this moment, based on suction inlet 4, indoor heat converter 9, air-supply path 6 air drag separately, pressure loss Δ Pa, Δ Pb, Δ Pc have been produced.Thus, during circulating in air-supply path 6, the static pressure of air-flow reduces, and becomes atmospheric pressure-Δ Pa-Δ Pb-Δ Pc.Wherein, the pressure loss of having omitted air cleaner 8 and other parts describes.

And the air-flow of sending from blow-off outlet 5 can produce the pressure loss Δ Pd1 that follows air-flow to confuse when blow-off outlet 5 is gone out.That is, the air-flow of sending from blow-off outlet 5 suddenly disappears because of the wall up and down in the air-supply path 6 that exists originally, and is ejected among the ambient air.At this moment, can give kinetic energy to ambient air, make ambient air slowly move based on the viscosity of air.Therefore, the air-flow of sending from blow-off outlet 5 is seized kinetic energy by ambient air, finally becomes and the atmospheric pressure equal static pressure.Since this phenomenon directly with send air-flow one gas from blow-off outlet 5 and carry out, so, can significantly confuse near the air-flow the blow-off outlet 5, and produce the pressure loss of following therewith.

For this reason, the total (Δ Pa+ Δ Pb+ Δ Pc+ Δ Pd1) of the static pressure reduction amount that need pressure one gas be risen cause because of the above-mentioned pressure loss by cross flow fan 7.Therefore, based on the static pressure rising Δ P0 of cross flow fan 7 must with total (the Δ Pa+ Δ Pb+ Δ Pc+ Δ Pd1) equivalence of static pressure slippage.

Long-pending (the Δ P0 * Q), become the merit of cross flow fan 7 of the air quantity Q of this static pressure rising Δ P0 and circulation.When the total (Δ P0＜Δ Pa+ Δ Pb+ Δ Pc+ Δ Pd1) that rises based on the static pressure of cross flow fan 7 less than static pressure reduction amount, cross flow fan 7 can't make desirable air quantity be passed to indoor heat converter 9.Therefore, can not carry out sufficient air regulates.

Relative with it, Figure 10, Figure 11 represent the situation of present embodiment (K1).Figure 10 is the side view cutaway drawing of indoor set 1 of schematically representing the state of K1.Figure 11 and Fig. 9 are same, are the figure of passing of static pressure situation of air-flow of internal circulation that schematically is illustrated in the indoor set 1 of this moment, and the longitudinal axis is represented the static pressure of air-flow, and transverse axis is represented the air supply direction of air-flow.

If drive cross flow fan 7, then with above-mentioned same, the extraneous air that static pressure equates with atmospheric pressure is inhaled in the casing of indoor set 1, produces air-flow.At this moment, based on suction inlet 4, indoor heat converter 9, air-supply path 6 air drag separately, pressure loss Δ Pa, Δ Pb, Δ Pc have been produced.Thus, during circulating in air-supply path 6, the static pressure of air-flow reduces, and becomes atmospheric pressure-Δ Pa-Δ Pb-Δ Pc.

On the other hand, the pressure loss Δ Pd2 of the air-flow of sending from blow-off outlet 5 is less than the pressure loss Δ Pd1 of the comparative example of Fig. 9.That is, the air-flow that passes through from the place ahead guide portion 6a stream flows along inclined plane 6b5 swimmingly via bend 6b4.Therefore, can not seized kinetic energy by ambient air suddenly, thereby the amount of the kinetic energy that is seized by ambient air is also few as comparative example.

And, since the air-flow integral body after the place ahead guide portion 6a circulation based on wall attachment effect along inclined plane 6b5, so, also can be influenced along the air-flow of the lower wall 6c in air-supply path 6 by it.Therefore, can not spread on a gas ground, and can become and the atmospheric pressure equal static pressure from the slow peripherad air diffusion of the downside of air-flow.Therefore, near confusing of the air-flow the blow-off outlet 5 is little, follows pressure loss Δ Pd2 therewith to diminish.

And, slowly enlarge flow path area by the place ahead guide portion 6a in air-supply path 6, by inclined plane 6b5 and horizontal shutter 113 slowly enlarge flow path area thereafter.Therefore, air-flow also can flow along inclined plane 6b5 is smooth and easy after by the place ahead guide portion 6a, along with drainage area slowly enlarges and circulates.

At this moment and since with horizontal shutter 111,112,113 as described above Fig. 5 be configured like that, so the gas stream flow channel that the air-flow of sending from blow-off outlet 5 circulates below the horizontal shutter 113 of lower side is slowly enlarged.Then, the gas stream flow channel that circulates between horizontal shutter 112,113 of the air-flow of sending from blow-off outlet 5 is slowly enlarged.Then, the gas stream flow channel that circulates between horizontal shutter 111,112 of the air-flow of sending from blow-off outlet 5 is slowly enlarged.At last, the gas stream flow channel of air-flow above the horizontal shutter 111 of top side circulation of sending from blow-off outlet 5 slowly enlarged.Therefore, air-flow begins slowly and smoothly to reduce successively flow velocity from downside.

If the flow velocity of air-flow reduces smoothly, then according to the known bernoulli formula in hydrodynamics field, the static pressure of air-flow rises.That is, the flow velocity of air-flow (kinetic energy) is transformed to static pressure (potential energy).Therefore, before the kinetic energy of the air-flow of sending from blow-off outlet 5 is seized by ambient air or confuses air-flow, its part is transformed to static pressure, can obtains static pressure rising Δ P2.

Thus, the total (Δ Pa+ Δ Pb+ Δ Pc+ Δ Pd2) of the cross flow fan 7 static pressure reduction amount that needs a gas to rise to cause from the above-mentioned pressure loss has deducted the amount of static pressure rising Δ P2.Therefore, the static pressure rising Δ P1 based on cross flow fan 7 becomes Δ Pa+ Δ Pb+ Δ Pc+Pd2-Δ P2.

Thereby the cross flow fan 7 needed static pressure rising Δ P0 during with comparative example (with reference to Fig. 8, Fig. 9) compare, and the static pressure rising Δ P1 that needs has reduced Δ P2+ Δ Pd1-Δ Pd2.Thus, because the merit of cross flow fan 7 has reduced (Δ P2+ Δ Pd1-Δ Pd2) * Q, so, can make the input (consumption electric power) of fans drive motor reduce amount accordingly, thereby can realize economical energy expenditure.

That is, not only can reduce near the pressure loss Δ Pd2 the blow-off outlet 5, and, the air along upper wall 6b and lower wall 6c can be slowed down, kinetic energy is transformed to static pressure, P2 assists cross flow fan 7 by its static pressure rising Δ.In other words, can fully reclaim the kinetic energy that was in the past seized, it is transformed to static pressure, as the merit of air-supply usefulness by surrounding air.Therefore, can reduce to rise, can realize the economical energy expenditure of air conditioner based on the static pressure of cross flow fan 7.

In addition, as mentioned above, owing to begin slowly to reduce wind speed successively smoothly, it is transformed to static pressure, so the loss the when flow velocity (kinetic energy) of air-flow is transformed to static pressure (potential energy) is little from the downside of air-flow.Therefore, the conversion efficiency that flow velocity is transformed to static pressure is splendid, a large amount of kinetic energy can be transformed to static pressure.

Figure 12 is that expression makes the variable-length of upper wall 6b and lower wall 6c, and the input of the fans drive motor of cross flow fan 7 (is consumed electric power, unit: the contour map that W) has carried out the result of investigation.The longitudinal axis is represented the length of upper wall 6b, divided by the diameter D of cross flow fan 7, makes it nondimensionalization.Transverse axis is represented the length of lower wall 6c, divided by the diameter D of cross flow fan 7, makes it nondimensionalization.The air quantity of cross flow fan 7 is constant to be 16m ³/ min.Among the figure, K1, K4 are the conditions identical with earlier figures 6.

In addition and since the length of upper wall 6b and lower wall 6c respectively less than 0.5D, situation less than 1.5D under, length is extremely short, can't set up as cross flow fan 7, so, omit and measure.And, because the instrumentation point of this figure is limited, so, utilize the interpolation of each instrumentation value, prediction to finish contour map.

From this figure as can be known, if extend the length of upper wall 6b and the length of lower wall 6c, then can reduce the consumption electric power of cross flow fan 7.And near the length sum of the length of upper wall 6b and lower wall 6c was the line L1 of 3.5D, the value that consumes electric power sharply changed.Therefore, if the length of upper wall 6b and the length sum of lower wall 6c are made as more than the 3.5D, consumption electric power is significantly reduced.Thus, fully become low speed to the speed of air-flow before, the kinetic energy of air-flow continues to be transformed to static pressure, can be with the abundant conversion of the kinetic energy of air-flow, be recovered as static pressure.

Figure 13 is that expression makes the variable-length of upper wall 6b and lower wall 6c, to along the arrival distance of the air-flow of ceiling face (unit: m) carried out the result's of investigation contour map.Arriving distance is the distance of the position of 0.05m/s for the mean wind speed in 30 seconds.Same with Figure 12, the longitudinal axis is represented the length of upper wall 6b, divided by the diameter D of cross flow fan 7, makes it nondimensionalization.Transverse axis is represented the length of lower wall 6c, divided by the diameter D of cross flow fan 7, makes it nondimensionalization.The air quantity of cross flow fan 7 is constant to be 16m ³/ min.Among the figure, K1, K4 are the conditions identical with earlier figures 6.

In addition and since the length of upper wall 6b and lower wall 6c respectively less than 0.5D, situation less than 1.5D under, length is extremely short, can't set up as cross flow fan 7, so, omit and measure.And, because the instrumentation point of this figure is limited, so, utilize the interpolation of each instrumentation value, prediction to finish contour map.

From this figure as can be known, it is little to the length interdependency of lower wall 6c to arrive distance, can significantly change based on the length of upper wall 6b.That is, prevent air-flow upward dissipation kinetic energy be effectively to prolong arriving distance, can be subjected to the significantly influence of the length of upper wall 6b.

In addition, near the length of upper wall 6b is the line L2 of 1.5D, arrives distance and sharply change.That is, the air-flow that blows out from blow-off outlet 5 can cause the motion of surrounding air immediately based on viscosity, and the kinetic energy of air-flow is slowly seized by ambient air.But, if the length of upper wall 6b is made as more than the 1.5D, then because upper wall 6b has sufficient length, so, can sharply reduce air-flow upward to the motion of air.Thus, can not lose the kinetic energy of respective amount, air-flow can arrive far place.That is, in the air-flow after fully having reclaimed kinetic energy, be more than the 1.5D if also make the length of upper wall 6b, then can significantly guarantee to arrive distance.

If it is, then low than near top (the upper wall 6b) speed near the bottom blow-off outlet 5 (near the lower wall 6c) from air-flow circulation in air-supply path 6 that cross flow fan 7 blows out.That is, near blow-off outlet 5, the air-flow that circulates on the top in air-supply path 6 has more highdensity kinetic energy, and the air-flow that circulates in the bottom in air-supply path 6 has more low-density kinetic energy.This phenomenon is the common common characteristic of cross flow fan.

If reclaim kinetic energy simultaneously, then only carry out from recover kinetic energy with air-flow more highdensity kinetic energy, that flow velocity is fast from air-flow with uneven energy density.Thus, be difficult to from having the kinetic energy of air flow recovery abundance more low-density kinetic energy, that flow velocity is slow.

That is,, make the wind speed of air-flow reduce, it is transformed to static pressure, so if enlarge the mobile stream with inhomogeneous wind speed profile, then the fast air-flow of wind speed passes through path earlier, is significantly slowed down owing to slowly enlarged the stream of gas.Thus, the slow air-flow of wind speed is difficult to be decelerated.As a result, the recover kinetic energy efficient of air-flow integral body reduces.Therefore, can divide, reclaim kinetic energy respectively fast air-flow of the flow velocity with more highdensity kinetic energy and the slow air-flow of flow velocity with more low-density kinetic energy.Thus, can reclaim kinetic energy efficiently from air-flow integral body.

In addition, along with the slow airflow of the flow velocity with more low-density kinetic energy, can make energy density reduce all the more because other reasonses such as wall resistance slowly lose kinetic energy.Therefore, need reclaim kinetic energy in the stage as early as possible.Because it is few to have the slow kinetic energy that air-flow had of the flow velocity of more low-density kinetic energy, so, can fully reclaim kinetic energy with relatively shorter distance.Relative with it, the kinetic energy that air-flow had fast owing to the flow velocity with more highdensity kinetic energy is many, so, in order to reclaim sufficient kinetic energy, need long distance.

Therefore, air-supply path 6 can be divided into a plurality of streams at above-below direction, make relatively shorter the getting final product of stream of bottom, also can increase stream more successively to top more.Thus, can be from the distinctive air-flow with uneven energy density of cross flow fan 7 high efficiente callback kinetic energy.Therefore, in the present embodiment, when air conditioner 1 action, be divided into 4 up and down by horizontal shutter 111,112,113 path 6 of will blowing.

That is, the air-supply path can be divided into: these 4 streams of stream of stream of the higher level's who forms by rake 6b5 and higher level's horizontal shutter 111 stream, the third level that forms by higher level's horizontal shutter 111 and partial stream that intermediate horizontal shutter 112 forms, by the horizontal shutter 113 of the horizontal shutter 112 of middle rank and subordinate and the subordinate that forms by the horizontal shutter 113 of subordinate and lower wall 6c.

And, as mentioned above, can dispose the terminal 6b6 of upper wall 6b, the front end of horizontal shutter 111, the front end of horizontal shutter 112, the front end of horizontal shutter 113, the terminal 6c4 of lower wall 6c in order from top, the place ahead.Thus, can be more upward increase each stream after cutting apart more successively.

In addition, will represent that more preferably the angle θ 1～θ 4 (with reference to Fig. 5) of magnifying power of the flow path area of each stream is set in 10 °～15 ° scope.That is, if make angle θ 1～θ 4 greater than 15 °, then the air-flow that circulates in each stream can be peeled off or is a significant slowdown from wall, and when kinetic energy was transformed to static pressure, the possibility that produces loss increased.If make angle θ 1～θ 4 less than 10 °, then can prolong the path in vain, correspondingly can increase the loss of kinetic energy because of the friction of air-flow and wall.

In addition, the size of the kinetic energy of air-flow and flow velocity is square proportional.Under the situation of having utilized cross flow fan 7, the wind speed of the air-flow that circulates near the top (the upper wall 6b) in air-supply path 6 is the several times near the wind speed of the air-flow of bottom (the lower wall 6c) circulation in air-supply path 6.Therefore, near the kinetic energy that air-flow had of top (upper wall 6b) circulation in air-supply path 6, become tens of times of the kinetic energy that air-flow had that circulates near the bottom (the lower wall 6c) in air-supply path 6 sometimes.Because the amount of the kinetic energy that should reclaim on the top in air-supply path 6 is very big, so, need fully long stream.

On the other hand, to the angle α (with reference to Fig. 2) that the magnifying power of flow path area of the place ahead guide portion 6a in air-supply path 6 is represented, preferably be about 20 ° as mentioned above.If angle α is more than 20 °, then the air-flow that circulates among the guide portion 6a forwardly can be peeled off or is a significant slowdown from wall, thus the produce power loss.At this moment, if cut apart, in 10 °～15 ° scope, form the stream that has enlarged flow path area respectively, then can only carry out two and cut apart by horizontal shutter.As a result, extremely difficult from the air-flow of the energy state that has tens times of differences as mentioned above, reclaim kinetic energy efficiently.

Therefore, the horizontal shutter 112 of middle rank is opposed with bend 6b4, and backend arrangement is relying on the position at rear than bend 6b4, and is configured to approximate parallel with the upper surface 6b3 of the place ahead guide portion 6a.Thus, with the gas stream flow channel that circulates among the guide portion 6a forwardly along two cutting apart up and down.And, can in θ 3, θ 4 are 10 °～15 ° scope, further carry out two by horizontal shutter 113 and cut apart the stream below the horizontal shutter 112.

And then, with horizontal shutter 112 opposed bend 6b4 places, upper wall 6b is crooked upward.Thus, the gas stream flow channel of circulation is extended above horizontal shutter 112.And the stream of the slow expansion that is formed by horizontal shutter 112 and inclined plane 6b5 is cut apart by higher level's horizontal shutter 111.Because higher level's horizontal shutter 111 is opposed with inclined plane 6b5, the rear end is configured in the position that relies on the place ahead than bend 6b4, so, can be that 10 °～15 ° scope is carried out two and cut apart by horizontal shutter 111 at θ 1, θ 2 with the top of horizontal shutter 112.In addition, because wind speed is slow, institute is so that the lower surface 6c 3 of the place ahead guide portion 6a is crooked downwards, expansion is less effective in the same manner with it.

In addition, the more preferably rear end of the horizontal shutter 113 of subordinate and the lower surface 6c3 of the place ahead guide portion 6a are configured to along with the vertical direction of air-flow, overlap in the position near the terminal 6c4 of lower wall 6c.Thus, can from the air-flow of the circulation of stream below horizontal shutter 113, reclaim kinetic energy more efficiently.

In addition,, horizontal shutter 111,112,113 rotates freely because constituting around turning cylinder (not shown), so, can be with other configuration change wind direction.

According to present embodiment owing to will rely on the length of upper wall 6b in air-supply path 6 in downstream and the length sum of lower wall 6c than cross flow fan 7, be made as cross flow fan 7 diameter D 3.More than 5 times, so when air conditioner turned round, air can be along the air-supply upper wall 6b in path 6 and the lower wall 6c long distance that circulates smoothly.Thus, near confusing of the air-flow the blow-off outlet 5 is few, and the pressure loss Δ Pd2 that accompanies with it reduces.

And, slowed down before fully becoming low speed along the air of upper wall 6b and lower wall 6c always, kinetic energy is transformed to static pressure, P2 assists cross flow fan 7 by its static pressure rising Δ.In other words, can fully reclaim the kinetic energy that was in the past seized, it is transformed to static pressure, as the merit of air-supply usefulness by ambient air.Therefore, can reduce to rise, can realize the economical energy expenditure of air conditioner based on the static pressure of cross flow fan 7.

In addition, can increase the arrival distance that is recovered kinetic energy, makes the air-flow that flow velocity reduces.Thus, the air of sending from blow-off outlet 5 can arrive the ceiling in room, successively with the wall transmission of the opposed wall of air conditioner, ground and air conditioning pusher side.Therefore, the air-flow of regulating air can spread all over each corner in room, makes air-flow significantly stir in whole room.Thereby, can make the temperature distribution homogenization of the residential area integral body except the part of indoor top, can access the comfortable space that does not almost directly blow to the wind of health.

In addition, if the pressure loss of general stream increases, then cross flow fan 7 can cause fluctuation.Thus, can produce the situation that the situation that can't obtain desirable air quantity and noise significantly increase.As present embodiment, indoor heat converter 9 has the refrigerant pipe of multistage and multiple row and under the crooked situation about constituting, can produce the very high pressure loss.Therefore, need fully to increase the rotating speed of cross flow fan 7, take the counter-measure that fluctuates.Thus, make the noise of cross flow fan 7 become big, and energy is saved degradation.

For this reason, be transformed to static pressure, rise to assist cross flow fan 7, not only can make cross flow fan 7 be difficult to cause fluctuation, and can make noise smaller based on this static pressure by kinetic energy with air-flow.Especially be set side by side with under the situation of the refrigerant pipe more than 4 row in the depth direction, because the pressure loss is very big, so, by present embodiment, can play bigger effect.

＜the second embodiment 〉

Figure 14 is the side view cutaway drawing of indoor set of the air conditioner of expression second embodiment.For convenience of explanation, given identical Reference numeral to the part identical with first embodiment of earlier figures 1～shown in Figure 13.In the present embodiment, front panel 3 is rotated axle 22 pivot suspensions in the lower end.In addition, front panel 3 can be by turning cylinder 23 warpages that are configured in the front.Other part is identical with first embodiment.

When air conditioner stopped, as shown in figure 14, front panel 3 was configured to the upper end and joins with casing top.And same with first embodiment, blow-off outlet 5 is covered by horizontal shutter 111,112.

As shown in figure 15, front panel 3 rotates by turning cylinder 22,23, is formed the inclined plane 6b5 in air-supply path 6 by the front panel 3 of 22,23 of turning cylinders when driving air conditioner.Thus, when the diameter with cross flow fan 7 was made as D, the length of upper wall 6b that relies on the air-supply path 6 in downstream than cross flow fan 7 can form more than the 1.5D.And relying on the length of upper wall 6b in air-supply path 6 in downstream and the length sum of lower wall 6c can form more than the 3.5D than cross flow fan 7.Thereby, can obtain the effect same with first embodiment.

＜the three embodiment 〉

Figure 16 is the side view cutaway drawing of indoor set of the air conditioner of expression the 3rd embodiment.For convenience of explanation, given identical Reference numeral to the part identical with first embodiment of earlier figures 1～shown in Figure 13.In the present embodiment, the lower openings of front panel 3, the moveable panel 21 of stopping up this opening is rotated axle 22 pivot suspensions in the lower end.Other parts are identical with first embodiment.

When air conditioner stopped, as shown in figure 16, moveable panel 21 was configured to stop up the bottom of front panel 3.And same with first embodiment, blow-off outlet 5 is covered by horizontal shutter 111,112.

As shown in figure 17, moveable panel 21 is rotated by turning cylinder 22, is formed the inclined plane 6b5 in air-supply path 6 by moveable panel 21 when driving air conditioner.Thus, when the diameter with cross flow fan 7 was made as D, the length of upper wall 6b that relies on the air-supply path 6 in downstream than cross flow fan 7 can form more than the 1.5D.And relying on the length of upper wall 6b in air-supply path 6 in downstream and the length sum of lower wall 6c can form more than the 3.5D than cross flow fan 7.Thereby, can obtain the effect same with first embodiment.

＜the four embodiment 〉

Figure 18 is the side view cutaway drawing of indoor set of the air conditioner of expression the 4th embodiment.To having given identical Reference numeral with the same part of first embodiment of earlier figures 1～shown in Figure 13.Present embodiment has been omitted the horizontal shutter 113 of first embodiment as previously mentioned.Comprise other parts of the length of the upper wall 6b in the path 6 of blowing and lower wall 6c, same with first embodiment.

According to the air conditioner of present embodiment, compare with the air conditioner of first embodiment, owing to omitted the horizontal shutter 113 of subordinate, so the recover kinetic energy efficient of the air-flow of circulation can reduce a little below air-supply path 6.But shown in the K2 of above-mentioned Fig. 6, compare with the comparative example K4 of Fig. 7 and can reduce to consume electric power, thus the economical energy expenditure of realizing compared with the past.

＜the five embodiment 〉

Figure 19 is the side view cutaway drawing of indoor set of the air conditioner of expression the 5th embodiment.Given identical Reference numeral to the part identical with first embodiment of earlier figures 1～shown in Figure 13.Present embodiment has not only been omitted the horizontal shutter 113 of first embodiment as previously mentioned, and has changed the length and the configuration of horizontal shutter 111,112.Comprise other parts of the length of the upper wall 6b in the path 6 of blowing and lower wall 6c, same with first embodiment.

Pei Zhi horizontal shutter 111,112 and bend 6b4 is opposed up and down, and the rear end is configured in the position that relies on the rear than bend 6b4.The front end of horizontal shutter 111,112 is configured in the approximately uniform position of fore-and-aft direction in the place more forward than bend 6b4.And, form by will blow the place ahead guide portion 6a in path 6 of horizontal shutter 111,112 and be similar to the stream of uniformly-spaced cutting apart.

According to the air conditioner of present embodiment, compare with the air conditioner of first, second embodiment, the recover kinetic energy efficient of the air-flow of circulation reduces in air-supply path 6.But, shown in the K3 of Fig. 6, compare as described above, can reduce to consume electric power with the comparative example K4 of Fig. 7, thus compared with the past, can realize economical energy expenditure.

According to first～the 5th embodiment air conditioner of the present invention is illustrated, but the present invention is not limited to above-mentioned embodiment, in the scope that does not break away from purport of the present invention, can applies suitable change and implement.

Industrial utilizability

According to the present invention, can in being taken into the air conditioning machine that indoor air regulates, utilize.

Claims (16)

1, a kind of air conditioner possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; Be arranged side by side refrigerant pipe to multistage and multiple row, and along the bending of aforementioned casing inner face, in aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; And the cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet; It is characterized in that,

Aforementioned air-supply path has forwards below guiding air, the place ahead guide portion of enlarging more of flow path area more downstream, to rely on the length of upper wall in aforementioned air-supply path in downstream and the length sum of lower wall than aforementioned cross flow fan, be made as more than 3.5 times of diameter of aforementioned cross flow fan.

2, air conditioner according to claim 1 is characterized in that,

Possess first wind direction board that the wind direction of aforementioned blow-off outlet can be changed up and down, when air conditioner turned round, the order that begins the front end of the front end by aforementioned upper wall, the front end of first wind direction board, aforementioned lower wall from top, the place ahead was configured.

3, air conditioner according to claim 2 is characterized in that,

Second wind direction board is set below first wind direction board, the front-end configuration of first wind direction board is relied on the position in the place ahead at the front end than second wind direction board.

4, air conditioner according to claim 3 is characterized in that,

Thereby aforementioned upper wall has the inclined plane that begins inclination above bend bending forwards from the terminal of aforementioned the place ahead guide portion upper surface of below inclination forwards, the rear end of first wind direction board is configured in the position that relies on the place ahead than aforementioned bend, and the rear end of second wind direction board is configured in the position that relies on the rear than aforementioned bend.

5, air conditioner according to claim 1 is characterized in that,

Possess and make aforementioned blow-off outlet first, second variable wind direction board up and down, thereby aforementioned upper wall has the inclined plane that begins inclination above bend bending forwards from the terminal of aforementioned the place ahead guide portion upper surface, the rear end of first wind direction board is configured in the position that relies on the place ahead than aforementioned bend, and is configured in the position that relies on the rear than aforementioned bend than the rear end of second wind direction board that first wind direction board relies on the below.

6, according to claim 4 or 5 described air conditioners, it is characterized in that,

Aforementioned inclined plane is made as 10 °～15 ° with first angle that wind direction board becomes and angle that first, second wind direction board becomes.

7, air conditioner according to claim 6 is characterized in that,

The 3rd wind direction board is set below second wind direction board, angle that second, third wind direction board becomes is made as 10 °～15 °.

8, air conditioner according to claim 6 is characterized in that,

The wind direction board of below is made as 10 °～15 ° with the angle that tangent line becomes of the terminal of aforementioned lower wall with being configured in.

9, air conditioner according to claim 1 is characterized in that,

The length of aforementioned upper wall is made as more than 1.5 times of diameter of aforementioned cross flow fan.

10, a kind of air conditioner possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; Be arranged side by side refrigerant pipe to multistage and multiple row, and along the bending of aforementioned casing inner face, in aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; The cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet; First, second wind direction board that changes up and down with the wind direction that can make aforementioned blow-off outlet; It is characterized in that,

Aforementioned air-supply path has from aforementioned cross flow fan below guiding forwards air, the place ahead guide portion of enlarging more of flow path area more downstream, to rely on the length of upper wall in the aforementioned air-supply path in downstream than aforementioned cross flow fan, be made as more than 1.5 times of diameter of aforementioned cross flow fan, and, aforementioned upper wall has from the terminal of aforementioned the place ahead guide portion and begins in the bend bending, thereby the inclined plane of top inclination forwards, the rear end of first wind direction board is configured in the position that relies on the place ahead than aforementioned bend, and is configured in the position that relies on the rear than aforementioned bend than the rear end of second wind direction board that first wind direction board relies on the below.

11, air conditioner according to claim 10 is characterized in that,

Aforementioned inclined plane is made as 10 °～15 ° with first angle that wind direction board becomes and angle that first, second wind direction board becomes.

12, air conditioner according to claim 11 is characterized in that,

The 3rd wind direction board is set below second wind direction board, angle that second, third wind direction board becomes is made as 10 °～15 °.

13, air conditioner according to claim 11 is characterized in that,

The wind direction board of below is made as 10 °～15 ° with the angle that tangent line becomes of the terminal of the lower wall of aforementioned the place ahead guide portion with being configured in.

14, air conditioner according to claim 10 is characterized in that,

When air conditioner turns round, be configured from the order of top, the place ahead by the front end of the front end of aforementioned upper wall, the front end of first wind direction board, the front end of second wind direction board, aforementioned lower wall.

15, a kind of air conditioner is characterized in that, possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; In aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; And the cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet;

To rely on the length of upper wall in the aforementioned air-supply path in downstream than aforementioned cross flow fan, be made as more than 1.5 times of diameter of aforementioned cross flow fan.

16, a kind of air conditioner is characterized in that, possesses: indoor air is taken into the suction inlet in the casing of indoor set; Be arranged on the blow-off outlet of lower box; Make the air-supply path that is communicated with between aforementioned suction inlet and the aforementioned blow-off outlet; In aforementioned air-supply path with the indoor heat converter of aforementioned suction inlet arranged opposite; And the cross flow fan that disposes between aforementioned indoor heat converter in aforementioned air-supply path and the aforementioned blow-off outlet;

To rely on the length of upper wall in aforementioned air-supply path in downstream and the length sum of lower wall than aforementioned cross flow fan, be made as more than 3.5 times of diameter of aforementioned cross flow fan.

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