CN101027523A - Air conditioner - Google Patents

Abstract

The object of the invention is to suppress deviation of flow of air passing through a heat exchanger while air supply capability in an air conditioner including a unit casing partitioned into a blower chamber and a heat exchanger chamber by a partition member, in which an impeller and a scroll casing are arranged in the blower chamber, and in which the heat exchanger is arranged in the heat exchanger chamber. The air conditioner (1) has the unit casing (2) partitioned by the partition member (24) into the blower chamber (S1) and the heat exchanger chamber (S2), impellers (31a-31d) and scroll casings (32a-32d) arranged in the blower chamber (S1), and the heat exchanger (4) provided in the heat exchanger chamber (S2) so as to face scroll blowout openings (35a-35d) of the scroll casings (32a-32d). Wall sections (61a-61d) projected to the heat exchanger (4) side from a flat plate section (25) of the partition member (24) are arranged outside scroll exits (37a-37d) of the scroll casings (32a-32d).

Description

Aircondition

Technical field

The present invention relates to a kind of aircondition, especially relate to have be separated that parts are separated out the cell enclosure of supply fan room and heat exchanger chamber and the centrifugal blower that has impeller and accommodate the vortex shell of impeller is configured in the supply fan room, the vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other.

Background technology

Following aircondition was arranged in the past, this aircondition comprises: have centrifugal blower, the heat exchanger of impeller and the vortex shell of accommodating impeller and be separated the cell enclosure that parts are separated out supply fan room and heat exchanger chamber, have impeller and be configured in the supply fan room with the centrifugal blower of accommodating the vortex shell of impeller, it is indoor that the vortex blow-off outlet of heat exchanger and vortex shell is configured in heat exchanger opposite to each other.

There is ceiling to hang as an example of this aircondition and establishes the type aircondition.This ceiling hangs the type aircondition of establishing mainly to have: the centrifugal blower and the heat exchanger that capable of hoistingly are located at cell enclosure on the ceiling, air are sucked in the cell enclosure by the unit suction inlet and air is blown out from the unit blow-off outlet.

Cell enclosure is formed with the unit suction inlet in the bottom surface, be formed with the unit blow-off outlet at front surface.In addition, dispose the partition member that is made of the plate-shaped member to side elongation and vertically configuration on cell enclosure, partition member is separated into the supply fan room of the rear side that is communicated with the unit suction inlet with the space in the cell enclosure and the heat exchanger chamber of the front face side that is communicated with the unit blow-off outlet.Particularly, partition member has the flat part of parallel with the front surface of cell enclosure and the back side side quadrature of cell enclosure (promptly with).On this flat part, be formed with the open communication that is communicated with supply fan room and heat exchanger chamber.

Centrifugal blower is configured in the supply fan room, mainly has: the motor of impeller, the vortex shell of accommodating impeller and drives impeller rotation.Impeller is with the form configuration of rotating shaft towards the side direction of cell enclosure, for example dual-sucking type sirocco fan rotor.The vortex shell comprises the vortex export department of vortex body and tubular, described vortex body has the vortex suction inlet to the rotating shaft direction opening of impeller, and described vortex export department has the vortex blow-off outlet that forms form that air is blown out to the direction of intersecting with the vortex suction inlet and dispose accordingly with the open communication of partition member.In this aircondition, be mostly with impeller and vortex shell on the rotating shaft direction, promptly the side towards the vortex shell is arranged side by side many, at this moment, rotate together by many impellers of a Motor Drive.

Heat exchanger and vortex blow-off outlet, particularly to be that the almost whole face of the flat part of partition member is configured in heat exchanger opposite to each other indoor, is used for cooling off or heating being boosted by centrifugal blower in supply fan room and being blown out to the indoor air of heat exchanger from the vortex blow-off outlet of vortex shell.

In this aircondition, when making the centrifugal blower action, air is inhaled into through the unit suction inlet in the supply fan room of cell enclosure, and the air in the suction draft unit room is inhaled in the vortex shell by the vortex suction inlet, and blows out from interior all side direction outer circumferential sides of impeller.To the outer circumferential side of this impeller blow out and boosted air from indoor the blowing out of vortex blow-off outlet heat exchanger of the corresponding configuration of the open communication of partition member.And, from the vortex blow-off outlet be blown out to the indoor air of heat exchanger because of with the heat-transfer pipe of heat exchanger in the cold-producing medium that flows carry out heat exchange and be cooled or heat, and from the unit blow-off outlet to indoor blowing out (for example with reference to patent documentation 1).

But, in above-mentioned aircondition in the past, the almost whole face of the flat part of heat exchanger and partition member in opposite directions, and the open communication of flat part, be on the part of the vortex blow-off outlet of the vortex shell flat part that only is arranged on partition member, therefore, can be from the indoor air that blows out of vortex blow-off outlet heat exchanger hardly diffusely through over-heat-exchanger, air through over-heat-exchanger can produce bias current, has the problem of flowing resistance increase, draft capacity and the heat-exchange capacity decline at heat exchanger place.When especially as above-mentioned aircondition in the past, impeller and vortex shell being arranged side by side many, can produce the problems referred to above at each vortex blow-off outlet place.

At this problem, a kind of aircondition (with reference to patent documentation 2) with the vortex shell that has enlarged the size of vortex export department on the impeller rotating shaft direction is proposed.

Patent documentation 1: the Japan Patent spy opens the 2002-106945 communique

Patent documentation 2: Japanese patent laid-open 5-99444 communique

Summary of the invention

In the above-mentioned latter's aircondition, owing to strengthened the size of vortex blow-off outlet, so produce the problem of bias current improves through the air of over-heat-exchanger, but because the size of vortex export department is more a lot of greatly than the size of impeller, so can hamper the vortex suction inlet, the dynamic pressure at vortex export department place is difficult to reclaim, and the result may make draft capacity reduce.

In addition; when the enough and to spare of the size that can add maelstrom export department is left in the space in the supply fan room; can strengthen the size of impeller and vortex shell self; but when the space in supply fan room does not have enough and to spare maybe must make the cell enclosure densification, then be difficult to the formation of the above-mentioned latter's of employing aircondition.

Technical problem to be solved by this invention is: have be separated that parts are separated out the cell enclosure of supply fan room and heat exchanger chamber and the centrifugal blower that has impeller and accommodate the vortex shell of impeller is configured in the supply fan room, the vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other, suppress the reduction of draft capacity and suppress to produce bias current through the air of over-heat-exchanger.

The aircondition of first invention comprises cell enclosure, partition member, impeller, vortex shell and heat exchanger.Cell enclosure has unit suction inlet and unit blow-off outlet.Partition member is the parts that the space in the cell enclosure are separated into supply fan room that is communicated with the unit suction inlet and the heat exchanger chamber that is communicated with the unit blow-off outlet, and have flat part, this flat part is formed with the open communication that is communicated with supply fan room and heat exchanger chamber.Impeller is configured in the supply fan room.The vortex shell comprises: the tubular vortex export department that has the vortex suction inlet and accommodate the vortex body of impeller and have the vortex blow-off outlet of corresponding configuration with open communication.It is indoor that heat exchanger and vortex blow-off outlet are configured in heat exchanger opposite to each other, makes after the vortex blow-off outlet is blown out to indoor this heat exchanger of air process of heat exchanger to blow out from the unit blow-off outlet.The side-prominent wall portion of heat exchanger at the oriented flat part of arranged outside of vortex export department.

In this aircondition, owing to be provided with to the side-prominent wall portion of the heat exchanger of flat part in the outside of vortex export department, therefore, indoor at heat exchanger, can near the outside of vortex blow-off outlet, form pressure ratio from the low part (hereinafter referred to as negative pressure portion) of the pressure of the indoor air that blows out of vortex export department heat exchanger.And, can flow to this negative pressure portion from the indoor air that blows out of vortex export department heat exchanger, thereby to the diffuse outside of vortex blow-off outlet.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger.

The aircondition of second invention is on the basis of aircondition of first invention, and the part that intersects from the face of the heat exchanger side of vortex export department and flat part is to the distance of the crossing part of the face of the heat exchanger side of wall portion and flat part below 0.5 times of rotor width at impeller.

In this aircondition, because the part that intersects from the face of the heat exchanger side of vortex export department and flat part is to the distance of the crossing part of the face of the heat exchanger side of wall portion and flat part below 0.5 times of rotor width at impeller, thereby can near the outside of vortex blow-off outlet, form negative pressure portion reliably.

The aircondition of the 3rd invention is on the basis of aircondition of first invention or second invention, and the distance from the face of the heat exchanger side of flat part to the end of the heat exchanger side of vortex export department is greater than zero and at below 0.3 times of root diameter of impeller.

In this aircondition, since the distance from the face of the heat exchanger side of flat part to the end of the heat exchanger side of vortex export department greater than zero, be that the heat exchanger chamber, end of heat exchanger side of vortex export department is side-prominent, thereby near the negative pressure portion that can constitute in the end and the space between the wall portion that form the outside of vortex blow-off outlet by the heat exchanger side that is clipped in vortex export department, this negative pressure portion can make from the effect increasing of the indoor air that blows out of vortex blow-off outlet heat exchanger to the diffuse outside of vortex blow-off outlet.And, because the distance from the face of the heat exchanger side of flat part to the end of the heat exchanger side of vortex export department is at below 0.3 times of root diameter of impeller, thereby between vortex blow-off outlet and heat exchanger, can guarantee from the indoor air that blows out of vortex blow-off outlet heat exchanger to the required enough distances of the diffuse outside of vortex blow-off outlet.

The aircondition of the 4th invention on the basis of aircondition of the 3rd invention, the distance from the face of the heat exchanger side of flat part to the end of the heat exchanger side of wall portion from the face of the heat exchanger side of flat part to more than the distance of the end of the heat exchanger side of vortex export department and at below 0.5 times of root diameter of impeller.

In this aircondition, since the distance from the face of the heat exchanger side of flat part to the end of the heat exchanger side of wall portion from the face of the heat exchanger side of flat part to more than the distance of the end of the heat exchanger side of vortex export department, be that more heat exchanger is side-prominent than the end of the heat exchanger side of vortex export department for the end of wall portion, thereby pressure that can strengthen the negative pressure portion that end and the space between the wall portion by the heat exchanger side that is clipped in vortex export department constitute and pressure differential from the pressure of the indoor air that blows out of vortex blow-off outlet heat exchanger, therefore, can improve from the effect of the indoor air that blows out of vortex blow-off outlet heat exchanger to the diffuse outside of vortex blow-off outlet.And, because the distance from the face of the heat exchanger side of flat part to the end of the heat exchanger side of wall portion is at below 0.5 times of root diameter of impeller, thereby the air stream to the diffuse outside of vortex blow-off outlet because of negative pressure portion can not done one's utmost to limit by wall portion, therefore, can make the outside that further is diffused into wall portion from the indoor air that blows out of vortex blow-off outlet heat exchanger.

On the basis of the aircondition of the 5th invention each aircondition in first invention is invented to the 4th, the face angulation of the heat exchanger side of wall portion and flat part is greater than 30 ° and below 90 °.

In this aircondition,, thereby can near the outside of vortex blow-off outlet, form negative pressure portion reliably because the face angulation of the heat exchanger side of wall portion and flat part is greater than 30 °.And,, thereby can make from the indoor air that blows out of vortex blow-off outlet heat exchanger reliably to the diffuse outside of vortex blow-off outlet because the face angulation of the heat exchanger side of wall portion and flat part is below 90 °.

The aircondition of the 6th invention to the 5th invention on each the basis of aircondition, is provided with sawtooth portion in first invention on the end of the heat exchanger side of wall portion.

In this aircondition, owing on the end of the heat exchanger side of wall portion, be provided with sawtooth portion, thus can suppress to produce pressure oscillation in the end of the heat exchanger side of wall portion from the indoor air that blows out of vortex blow-off outlet heat exchanger.Thus, the pressure oscillation at end place that can suppress the heat exchanger side of wall portion produces noise.

The aircondition of the 7th invention to the 6th invention on each the basis of aircondition, is provided with a plurality of pits in first invention on the face of the vortex export department side of wall portion.

In this aircondition, owing on the face of the vortex export department side of wall portion, be provided with a plurality of pits, thus can make the face of vortex export department side from the indoor air that blows out of vortex blow-off outlet heat exchanger along wall portion.Thus, can improve from the effect of the indoor air that blows out of vortex blow-off outlet heat exchanger to the diffuse outside of vortex blow-off outlet.

On the basis of the aircondition of the 8th invention each aircondition in first invention is invented to the 6th, in wall portion, be provided with a plurality of through holes.

In this aircondition, owing in wall portion, be provided with a plurality of through holes, thus can make the face of vortex export department side from the indoor air that blows out of vortex blow-off outlet heat exchanger along wall portion.Thus, can improve from the effect of the indoor air that blows out of vortex blow-off outlet heat exchanger to the diffuse outside of vortex blow-off outlet.

On the basis of the aircondition of the 9th invention each aircondition in first invention is invented to the 8th, it is the center rotation that impeller is configured to the rotating shaft along flat part.This aircondition also comprises the rotating shaft direction side that is configured in the vortex shell in the supply fan room, the motor of drives impeller rotation.Vortex export department tilts to motor side on one side under the situation that rotating shaft direction size does not strengthen and extends to open communication on one side.

As aircondition in the past, have be separated that parts are separated out the cell enclosure of supply fan room and heat exchanger chamber and the centrifugal blower that has impeller and accommodate the vortex shell of impeller is configured in the supply fan room, the vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other, it is the center rotation that impeller is configured to the rotating shaft along the flat part of partition member, the rotating shaft direction side of the vortex shell of motor configurations in supply fan room of drives impeller rotation.

In having the aircondition of this formation, from the indoor air that blows out of vortex blow-off outlet heat exchanger of vortex shell mainly through over-heat-exchanger across flat part and vortex shell part in opposite directions, be difficult to through over-heat-exchanger across flat part and motor part in opposite directions, therefore, air through over-heat-exchanger can produce bias current, has the problem of flowing resistance increase, draft capacity and the heat-exchange capacity decline at heat exchanger place.

At this situation, in aircondition of the present invention, vortex export department tilts to motor side on one side under the situation that rotating shaft direction size does not strengthen and extends to open communication on one side, therefore, the indoor air that blows out of heat exchanger also be easy to through over-heat-exchanger across flat part and motor part in opposite directions, can suppress to produce bias current through the air of over-heat-exchanger.And, can not add the axial size of rotation of maelstrom export department, therefore, can not produce vortex export department place yet and be difficult to carry out undesirable conditions such as dynamic pressure recovery, can suppress the reduction of wind pushing performance.

On the basis of the aircondition of the tenth invention each aircondition in first invention is invented to the 8th, it is the center rotation that impeller is configured to the rotating shaft along flat part.Wall portion is configured in the axial outside of rotation of vortex export department.

Have be separated that parts are separated out the cell enclosure of supply fan room and heat exchanger chamber and the centrifugal blower that has impeller and accommodate the vortex shell of impeller is configured in the supply fan room, the vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other, when impeller being configured to be the form of center rotation, be difficult to direction diffusion along rotating shaft from the indoor air that blows out of vortex export department heat exchanger that is opened on the direction that intersects with this rotating shaft with rotating shaft along the flat part of partition member.

But, in this aircondition, owing to dispose wall portion in the axial outside of the rotation of vortex export department, thus indoor at heat exchanger, can near the axial outside of the rotation of vortex blow-off outlet, form negative pressure portion.And, can flow to this negative pressure portion from the indoor air that blows out of vortex blow-off outlet heat exchanger, therefore, be easy to the axial diffuse outside of the rotation of vortex blow-off outlet.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger.

The aircondition of the 11 invention is on the basis of the aircondition of the tenth invention, and impeller and vortex shell dispose a plurality of on the rotating shaft direction side by side.Wall portion is configured in the adjacent vortex shell side in the vortex export department outside.

Be separated the cell enclosure that parts are separated out supply fan room and heat exchanger chamber having, and having impeller is configured in the supply fan room with the centrifugal blower of accommodating the vortex shell of impeller, the vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other, when impeller being configured to rotating shaft to be the form of center rotation along the flat part of partition member, and with impeller and vortex shell on the rotating shaft direction and row arrangement when a plurality of, between adjacent vortex shell, form the gap, be blown out to the indoor air of heat exchanger from vortex export department and be difficult to through the part corresponding with this gap.

But, in this aircondition, because wall portion is configured in the adjacent vortex shell side in the vortex export department outside, thus indoor at heat exchanger, can form negative pressure portion in the adjacent vortex shell side of vortex blow-off outlet.And, can flow to this negative pressure portion from the indoor air that blows out of vortex blow-off outlet heat exchanger, therefore, be easy to adjacent vortex shell side diffusion to the vortex blow-off outlet.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger.

The aircondition of the 12 invention also comprises the rotating shaft direction side that is configured in the vortex shell in the supply fan room and the motor of drives impeller rotation on the basis of aircondition of the tenth invention or the 11 invention.Wall portion is configured in the motor side in the vortex export department outside.

Be separated the cell enclosure that parts are separated out supply fan room and heat exchanger chamber having, and having impeller is configured in the supply fan room with the centrifugal blower of accommodating the vortex shell of impeller, the vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other, when impeller being configured to rotating shaft to be the form of center rotation along the flat part of partition member, and with the motor configurations of drives impeller rotation when the rotating shaft direction side of vortex shell, from the vortex blow-off outlet be blown out to the indoor air of heat exchanger mainly through over-heat-exchanger across flat part and vortex shell part in opposite directions, be difficult to through over-heat-exchanger across flat part and motor part in opposite directions.

But, in this aircondition, because wall portion is configured in the motor side in the vortex export department outside, thus indoor at heat exchanger, can form negative pressure portion at the motor side of vortex blow-off outlet.And, can flow to this negative pressure portion from the indoor air that blows out of vortex blow-off outlet heat exchanger, therefore, be easy to motor side diffusion to the vortex blow-off outlet.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger.

The aircondition of the 13 invention is on the basis of the aircondition of the 12 invention, and vortex export department tilts to motor side on one side under the situation that rotating shaft direction size does not strengthen and extends to described open communication on one side.

In this aircondition, vortex export department tilts to motor side on one side under the situation that rotating shaft direction size does not strengthen and extends to open communication on one side, therefore, the indoor air that blows out of heat exchanger also be easy to through over-heat-exchanger across flat part and motor part in opposite directions, can further suppress to produce bias current through the air of over-heat-exchanger.And, can not add the axial size of rotation of maelstrom export department, therefore, can not produce yet vortex export department place be difficult to carry out undesirable condition such as dynamic pressure recovery, can suppress the reduction of wind pushing performance.

Description of drawings

Fig. 1 is that the ceiling as first embodiment of the aircondition that the present invention relates to hangs the side sectional view of establishing the type aircondition.

Fig. 2 is that the ceiling as first embodiment of the aircondition that the present invention relates to hangs the vertical view cutaway drawing of establishing the type aircondition.

Fig. 3 is the enlarged drawing of Fig. 2, is near the figure of the structure expression impeller and the vortex shell.

Fig. 4 is the enlarged drawing of Fig. 1, is near the figure of the structure expression impeller and the vortex shell.

Fig. 5 is the aircondition of the variation 1 of first embodiment, is near the figure of the structure the expression vortex export department.

Fig. 6 is the aircondition of the variation 2 of first embodiment, is near the figure of the structure the expression vortex export department.

Fig. 7 is the aircondition of the variation 2 of first embodiment, is near the figure of the structure the expression vortex export department.

Fig. 8 is the aircondition of the variation 3 of first embodiment, is near the figure of the structure the expression vortex export department.

Fig. 9 is the aircondition of the variation 4 of first embodiment, is the figure that is equivalent to Fig. 2.

Figure 10 is the side view (A of Figure 11 is to view) as the pipeline type aircondition of second embodiment of the aircondition that the present invention relates to.

Figure 11 is the vertical view cutaway drawing as the pipeline type aircondition of second embodiment of the aircondition that the present invention relates to.

Figure 12 is the enlarged drawing of Figure 11, is near the figure of the structure expression impeller and the vortex shell.

Figure 13 is the aircondition of the variation 1 of second embodiment, is near the figure of the structure the expression vortex export department.

Figure 14 is the aircondition of the variation 1 of second embodiment, is near the figure of the structure the expression vortex export department.

Figure 15 is the aircondition of the variation 1 of second embodiment, is near the figure of the structure the expression vortex export department.

Figure 16 is the aircondition of the variation 1 of second embodiment, is near the figure of the structure the expression vortex export department.

Figure 17 is the aircondition of the variation 2 of second embodiment, is the figure that is equivalent to Figure 11.

(symbol description)

1,101 airconditions

2,102 cell enclosure

2a, 102g, 102h unit suction inlet

2b, 102i unit blow-off outlet

4,104 heat exchangers

24,124 partition members

25,125 flat parts

25a～25d, 125a, 125b open communication

31a～31d, 131a, 131b impeller

32a～32d, 132a, 132b vortex shell

33,133 motor

34a～34d, 134a, 134b vortex suction inlet

35a～35d, 135a, 135b vortex blow-off outlet

36a～36d, 136a, 136b vortex body

37a～37d, 137a, 137b vortex export department

61a～61d, 161a, 161b wall portion

71,171 sawtooth portions

72,172 pits

73,173 through holes

A, b, c distance

The D root diameter

The O rotating shaft

The S1 supply fan room

S2 heat exchanger chamber

The W rotor width

The θ angle

The specific embodiment

Embodiment to the aircondition that the present invention relates to describes with reference to the accompanying drawings.

＜the first embodiment 〉

Fig. 1 and Fig. 2 represent that the ceiling as first embodiment of the aircondition that the present invention relates to hangs and establish type aircondition 1.At this, Fig. 1 is the side sectional view (cross section of expression vortex shell 32b) of aircondition 1.Fig. 2 is the vertical view cutaway drawing of aircondition 1.

This aircondition 1 hangs on the ceiling that is located at the air conditioning chamber, by cold-producing medium connecting pipings (not shown) be disposed at outdoor outdoor unit (not shown) and be connected.

Aircondition 1 mainly has cell enclosure 2, centrifugal blower 3, heat exchanger 4.

＜cell enclosure 〉

Cell enclosure 2 forms: integral body is the slim case shape to the side elongation, and the short transverse size diminishes to front face side from rear side.Rear side in cell enclosure 2 bottom surfaces partly is provided with the unit suction inlet 2a that is used for room air sucked in the cell enclosure 2.In addition, the front surface of cell enclosure 2 be provided be used for the air after cooling or the heating in the cell enclosure 2 to the indoor unit blow-off outlet 2b that blows out.

Particularly, cell enclosure 2 mainly comprises: capable of hoisting be located at top plate portion 21 on the ceiling, with the front face side part of top plate portion 21 in opposite directions configuration base plate 22 and with the rear side part of the top plate portion 21 suction grid 23 of configuration in opposite directions.Top plate portion 21 is the metal plate-shaped members that are bent to form by panel beating by a pair of side and the back side.Suck grid 23 and be installed in removably on the top plate portion 21, constitute suction inlet 2a.

In addition, in the base plate 22 of cell enclosure 2 and suck and be provided with between the grid 23 to the side elongation and the vertical partition member 24 that constitutes by plate-shaped member of configuration.Partition member 24 is separated into the supply fan room S1 of the rear side that is communicated with unit suction inlet 2a with the spaces in the cell enclosure 2 and the S2 of heat exchanger chamber of the front face side that is communicated with unit blow-off outlet 2b.Particularly, the flat part 25 that in the present embodiment, that partition member 24 has is parallel with the front surface of cell enclosure 2 and the back side side quadrature of cell enclosure 2 (promptly with).And, be formed with four open communication 25a～25d that are communicated with supply fan room S1 and the S2 of heat exchanger chamber on this flat part 25, these four open communication 25a～25d are corresponding with each vortex blow-off outlet 35a～35d (aftermentioned) of four vortex shell 32a～32d that constitute centrifugal blower 3.Four open communication 25a～25d are along the length direction and the row arrangement of flat part 25, in the present embodiment, are the square holes of laterally long rectangular shape.

The front surface of cell enclosure 2, side and bottom surface are synthesized resinous decorative element 26 and cover.The heat insulating member 27 that is made of foam styrene etc. for example is installed near the unit of top plate portion 21 blow-off outlet 2b.In addition, the drip tray 28 that is made of foam styrene etc. for example is installed in the inside of base plate 22.The unit blow-off outlet 2b that the front face side part of the front face side part of these cell enclosure 2, decorative element 26, heat insulating member 27 and the front face side of drip tray 28 partly constitute essentially rectangular and extend to the side.

A plurality of second air doors 30 that unit blow-off outlet 2b is provided with first air door 29 that swings up and down and swings.First air door 29 is made of the plate-shaped member to side elongation, is supported on the cell enclosure 2, can wind along first X1 of the length direction of unit blow-off outlet 2b to freely swing.A plurality of second air doors 30 in the rear side position of first X1 upper support on cell enclosure 2, can be around freely swinging with staggered second X2 of first X1.

＜centrifugal blower 〉

Centrifugal blower 3 is configured in the supply fan room S1, is used for boosting after air is in the unit suction inlet 2a suction draft unit room S1, and blows out by the open communication 25a～25d heat exchanger chamber S2 of partition member 24.And centrifugal blower 3 mainly has four impeller 31a～31d, accommodate four the vortex shell 32a～32d of each impeller 31a～31d and the motor 33 of drives impeller 31a～31d rotation.

At first impeller 31a～31d is described with reference to Fig. 1 and Fig. 2.In the present embodiment, impeller 31a～31d is the sirocco fan rotor of dual-sucking type, with rotating shaft O towards the side of cell enclosure 2 form and the row arrangement of the flat part 25 of partition member 24 (promptly along).In addition, because impeller 31a～31d is identical structure, therefore, only the formation of impeller 31b is described at this, replace expression impeller 31b each several part symbol b and to formation label symbol a, c, the d of impeller 31a, 31c, 31d, the explanation of omitting each several part.

Impeller 31b mainly comprises: be the discoideus mainboard 41b of center rotation with rotating shaft O; On two faces of the peripheral part of mainboard 41b with rotating shaft O be center configuration circlewise and separately an end be fixed on multi-disc wing plate 42b on the mainboard 41b; And be configured in the rotating shaft O direction both sides of mainboard 41b and connect the pair of side plates 43b of the other end of multi-disc wing plate 42b.

Below vortex shell 32a～32d is described.In addition, because vortex shell 32a～32d is identical structure, therefore, only the formation of vortex shell 32b is described at this, replace expression vortex shell 32b each several part symbol b and to formation label symbol a, c, the d of vortex shell 32a, 32c, 32d, the explanation of omitting each several part.

Vortex shell 32b comprises: two vortex suction inlet 34b that are formed on two sides for the centrifugal blower that constitutes dual-sucking type; And form vortex blow-off outlet 35b to the direction blow out air that intersects with vortex suction inlet 34b.At this, vortex suction inlet 34b is towards the rotating shaft O direction opening of impeller 31b.Therefore, the unit suction inlet 2a direction of intersecting (particularly being orthogonal direction) opening towards opening direction with vortex suction inlet 34b.In addition, the open communication 25b of vortex blow-off outlet 35b and partition member 24 disposes accordingly.

Particularly, in the present embodiment, vortex shell 32b is resinous parts, has by the vortex lower member 45b that covers impeller 31b from the below and covers the segmenting structure that the vortex upper-part 44b of impeller 31b constitutes from the top.And,, constitute the 37b of vortex export department that has two vortex suction inlet 34b and accommodate the vortex body 36b of impeller 31b and have vortex blow-off outlet 35b and be communicated with vortex body 36b by assembling these parts 44b, 45b.On vortex body 36b, be formed with and be trapped among each vortex suction inlet 34b two bell oral area 38b on every side.Interior all side ends of bell oral area 38b bend to bell to impeller 31b side.The 37b of vortex export department is the partially communicating square tube shape part with partition member 24 sides of vortex body 36b, its leading section is inserted among the open communication 25b on the flat part 25 that is formed at partition member 24, and side-prominent from flat part 25 heat exchanger 4 of partition member 24.When overlooking cell enclosure 2, the 37b of vortex export department along with flat part 25 roughly quadrature direction, promptly extend as the crow flies with the direction of rotating shaft O quadrature, during side-looking cell enclosure 2, the 37b of vortex export department slightly tilts downwards with form that air is blown out slightly downwards.

In addition, in the present embodiment, impeller and vortex shell are four, but are not limited thereto, also can for one, more than two or four.In addition, in the present embodiment, impeller and vortex shell are dual-sucking type, but also can be the single suction type.

In the present embodiment, when overlooking cell enclosure 2, motor 33 is configured in (being the rotating shaft O direction side of vortex shell 32b and vortex shell 32c) between vortex shell 32b and the vortex shell 32c, and is fixed on partition member 24 and the cell enclosure 2 by support component 33a.Therefore, have only the interval between vortex shell 32b and vortex shell 32c bigger than the interval between other vortex shells (particularly referring to the interval between interval, vortex shell 32c and the vortex shell 32d between vortex shell 32a and vortex shell 32b).And four impeller 31a～31d are connected on this motor 33, can drive rotation together by this motor 33.

By making this centrifugal blower 3 actions, air is passed through in the supply fan room S1 of unit suction inlet 2a suction cell enclosure 2, air in the suction draft unit room S1 sucks in each vortex shell 32a～32d by vortex suction inlet 34a～34d, and blows out from interior all side direction outer circumferential sides of each impeller 31a～31d.To the outer circumferential side of this impeller 31a～31d blow out and boosted air from each vortex blow-off outlet 35a～35d heat exchanger chamber S2 of the vortex shell 32a～32d of the corresponding configuration of each open communication 25a～25d of partition member 24 in blow out.

＜heat exchanger 〉

Heat exchanger 4 is configured in the S2 of heat exchanger chamber, is used for cooling off or heating being boosted by centrifugal blower 3 in supply fan room S1 and being blown out to air in the S2 of heat exchanger chamber from vortex blow-off outlet 35a～35d of vortex shell 32a～32d.In the present embodiment, heat exchanger 4 is to intersect fin tube heat exchanger, with the almost whole face of the flat part 25 of partition member 24 in opposite directions and configuration abreast.Therefore, heat exchanger 4 disposes opposite to each other with vortex blow-off outlet 35a～35d of the 37a～37d of vortex export department.In addition, to be configured to top oblique to unit blow-off outlet 2b inclination for heat exchanger 4.And, dispose drip tray 28 at the downside of heat exchanger 4, can be received in the dew that heat exchanger 4 places produce.

Thus, from vortex blow-off outlet 35a～35d be blown out in the S2 of heat exchanger chamber air because of with the heat-transfer pipe of heat exchanger 4 in the cold-producing medium that flows carry out heat exchange and be cooled or heat, and blow out to indoor from unit blow-off outlet 2b.

In aircondition 1, also be provided with the 61a～61d of wall portion with above-mentioned formation.Below with reference to Fig. 1～Fig. 4 the 61a～61d of these wall portions is described.At this, Fig. 3 is the enlarged drawing of Fig. 2, is near the figure of the structure expression impeller 31b and the vortex shell 32b.Fig. 4 is the enlarged drawing of Fig. 1, is near the figure of the structure expression impeller 31b and the vortex shell 32b.

＜wall portion 〉

As Fig. 2, Fig. 3 and shown in Figure 4, the 61a～61d of wall portion is the side-prominent part of the heat exchanger 4 to the flat part 25 of partition member 24 of being located at each 37a of vortex export department～37d outside.In addition, because the 61a～61d of wall portion is identical structure in the present embodiment, therefore, only the formation of the 61b of wall portion is described at this, replace the expression wall 61b of portion each several part symbol b and to formation label symbol a, c, the d of the 61a of wall portion, 61c, 61d, the explanation of omitting each several part.

In the present embodiment, the 61b of wall portion is the barrel that is provided with the form that surrounds the tubular vortex 37b of the export department outside, comprising: the side wall portion 62,63 of side that is configured in two side surface part 46,47 of the 37b of vortex export department respectively; Be configured in the top wall portion 64 of last facial 48 tops of the 37b of vortex export department; And the below wall portion 66 that is configured in lower face 49 belows of the 37b of vortex export department.And, the end of the supply fan room S1 side of the 61b of wall portion (particularly referring to side wall portion 62,63, top wall portion 64 and below wall portion 66) is connected on the outer fix of open communication 25b of flat part 25 of partition member 24, and heat exchanger 4 side-prominent extensions from here.In the aircondition 1 of present embodiment, because this wall 61b of portion is set, thereby can near the outside of vortex blow-off outlet 35b, form the low part (hereinafter referred to as the S3 of negative pressure portion) of pressure of the air that pressure ratio blows out in the 35b of the vortex export department heat exchanger chamber S2.In addition, the 61b of wall portion does not need to be arranged on as present embodiment on the whole girth in the vortex blow-off outlet 35b outside, can only be formed on the part of the vortex blow-off outlet 35b outside hope formation negative pressure S3 of portion near yet.For example, if only wish to form the negative pressure S3 of portion, top wall portion 64 and below wall portion 66 then can be set, and side wall portion 62,63 only is set in the side of vortex blow-off outlet 35b.

In addition; In the present embodiment; the part that intersects from the face of heat exchanger 4 sides of 37b of vortex export department and flat part 25 is to rotor width W 0.5 times below of the distance c the crossing part of the face of heat exchanger 4 sides of the 61b of wall portion and flat part 25 at impeller 31b.,37b46 ( 61b62 ) 25461b62 ( 37b46 ) 254c、37b47 ( 61b63 ) 25461b63 ( 37b47 ) 254c、37b48 ( 61b64 ) 25461b64 ( 37b48 ) 254c、37b49 ( 61b65 ) 25461b65 ( 37b49 ) 254c31bW0.5。 In the aircondition 1 of present embodiment, thereby can near the outside of vortex blow-off outlet 35b, form the S3 of negative pressure portion reliably because distance c is at below 0.5 times of rotor width W.In addition, if the 61b of wall portion not with flat part 25 butts, the part that intersects with the face of heat exchanger 4 sides of flat part 25 when then prolonging the end of flat part 25 sides of the 61b of wall portion is equivalent to the crossing part of face of heat exchanger 4 sides of 61b of wall portion and flat part 25.

In addition, in the present embodiment, till from the face of heat exchanger 4 sides of flat part 25 to the end of heat exchanger 4 sides of the 37b of vortex export department apart from a greater than zero and at below 0.3 times of root diameter D of impeller 31b.Particularly, till from the face of heat exchanger 4 sides of flat part 25 to the end of heat exchanger 4 sides of two side surface part 46,47 of the 37b of vortex export department apart from till a, the end of going up facial 48 heat exchanger 4 sides from the face of heat exchanger 4 sides of flat part 25 to the 37b of vortex export department apart from a and till from the face of heat exchanger 4 sides of flat part 25 to the end of heat exchanger 4 sides of the lower face 49 of the 37b of vortex export department apart from a greater than zero and at below 0.3 times of root diameter D of impeller 31b.In the aircondition 1 of present embodiment, by make apart from a greater than zero, promptly, make heat exchanger chamber, the end S2 of heat exchanger 4 sides of the 37b of vortex export department side-prominent, the S3 of negative pressure portion that can constitute by the end and the space between the 61b of wall portion of heat exchanger 4 sides that are clipped in the 37b of vortex export department near the formation outside of vortex blow-off outlet 35b.

In addition, in the present embodiment, the distance b till from the face of heat exchanger 4 sides of flat part 25 to the end of heat exchanger 4 sides of the 61b of wall portion is more than the distance a and at below 0.5 times of root diameter D of impeller 31b.Particularly, the distance b till from the face of heat exchanger 4 sides of flat part 25 to the end of heat exchanger 4 sides of the side wall portion 62,63 of the 61b of wall portion, the distance b till from the face of heat exchanger 4 sides of flat part 25 to the end of heat exchanger 4 sides of the top wall portion 64 of the 61b of wall portion and below wall portion 65 from the face of heat exchanger 4 sides of flat part 25 to the 61b of wall portion

The end of heat exchanger 4 sides till distance b more than the distance a and at below 0.5 times of root diameter D of impeller 31b.In the aircondition 1 of present embodiment, by make distance b more than distance a, promptly, more heat exchanger 4 is side-prominent than the end of heat exchanger 4 sides of the 37b of vortex export department for the end that makes the 61b of wall portion, can strengthen the pressure of the S3 of negative pressure portion that end and the space between the 61b of wall portion by heat exchanger 4 sides that are clipped in the 37b of vortex export department constitute and the pressure of the air that blows out in the vortex blow-off outlet 35b heat exchanger chamber S2 between pressure differential.

In addition, in the present embodiment, angulation θ is greater than 30 ° and below 90 ° between the face of heat exchanger 4 sides of 61b of wall portion and flat part 25.Particularly, the side wall portion 62 of the 61b of wall portion, 63 inner surface (is the side surface part 46 of the 37b of vortex export department, the face of 47 sides) face with heat exchanger 4 sides of flat part 25 is the side wall portion 62 of the 61b of wall portion, angulation θ between 63 the Outboard Sections, the face of heat exchanger 4 sides of inner surface of the top wall portion 64 of the 61b of wall portion (being the face of last facial 48 sides of the 37b of vortex export department) and flat part 25 is angulation θ between the Outboard Sections of top wall portion 64 of the 61b of wall portion, and the face of heat exchanger 4 sides of inner surface of the below wall portion 65 of the 61b of wall portion (being the face of lower face 49 sides of the 37b of vortex export department) and flat part 25 be between the Outboard Sections of below wall portion 65 of the 61b of wall portion angulation θ greater than 30 ° and below 90 °.In the aircondition 1 of present embodiment, between the face of heat exchanger 4 sides by making 61b of wall portion and flat part 25 angulation θ greater than 30 °, thereby can near the outside of vortex blow-off outlet 35b, form the S3 of negative pressure portion reliably.

(2) action of aircondition

Below with reference to Fig. 1～Fig. 4 the action of the aircondition 1 of present embodiment is described.

Make centrifugal blower 3 actions by starting motor 33, suck air in the supply fan room S1 of cell enclosure 2 by unit suction inlet 2a, air in the suction draft unit room S1 is inhaled in each vortex shell 32a～32d by vortex suction inlet 34a～34d, and blows out from interior all side direction outer circumferential sides of impeller 31a～31d.To the outer circumferential side of this impeller 31a～31d blow out and boosted air from the vortex blow-off outlet 35a～35d heat exchanger chamber S2 of the corresponding configuration of open communication 25a～25d of partition member 24 in blow out.And, from vortex blow-off outlet 35a～35d be blown out in the S2 of heat exchanger chamber air because of with the heat-transfer pipe of heat exchanger 4 in the cold-producing medium that flows carry out heat exchange and be cooled or heat, and blow out to indoor from unit blow-off outlet 2b.

At this, in the aircondition 1 of present embodiment, because at the side-prominent 61a～61d of wall portion of the heat exchanger 4 of the oriented flat part 25 of arranged outside of the 37a～37d of vortex export department, therefore, near the outside of vortex blow-off outlet 35a～35d, form the low S3 of negative pressure portion of pressure of the air that pressure ratio blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2.And, the air (with reference to the arrow F of Fig. 3 and Fig. 4) that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 can flow to the S3 of this negative pressure portion, therefore, (the arrow f of the air stream when reference table is shown in vortex export department wall portion is not set) compares with the situation that wall portion is not set in vortex export department, can be to the diffuse outside of vortex blow-off outlet 35a～35d.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger 4.

In addition, in the aircondition 1 of present embodiment,, can near the outside of vortex blow-off outlet 35a～35d, form the S3 of negative pressure portion reliably by making below 0.5 times of rotor width W of distance c at impeller 31a～31d.

In addition, in the aircondition 1 of present embodiment, by make apart from a greater than zero, promptly, make heat exchanger chamber, the end S2 of heat exchanger 4 sides of the 37a～37d of vortex export department side-prominent, near the S3 of negative pressure portion that can constitute in the end and the space between the 61a～61d of wall portion that form the outside of vortex blow-off outlet 35a～35d by heat exchanger 4 sides that are clipped in the 37a～37d of vortex export department, the S3 of this negative pressure portion can make the effect increasing to the diffuse outside of vortex blow-off outlet 35a～35d of the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2.And, by making below 0.3 times of root diameter D at impeller 31a～31d apart from a, the air that can guarantee to blow out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 between vortex blow-off outlet 35a～35d and heat exchanger 4 is to the required enough distances of the diffuse outside of vortex blow-off outlet 35a～35d.

In addition, in the aircondition 1 of present embodiment, by making distance b more than distance a, promptly, more heat exchanger 4 is side-prominent than the end of heat exchanger 4 sides of the 37a～37d of vortex export department in the end that makes the 61a～61d of wall portion, pressure differential between the pressure of the air that can strengthen the pressure of the S3 of negative pressure portion that end and the space between the 61a～61d of wall portion by heat exchanger 4 sides that are clipped in the 37a～37d of vortex export department constitute and blow out in vortex blow-off outlet 35a～35d heat exchanger chamber S2, therefore, can improve the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 effect to the diffuse outside of vortex blow-off outlet 35a～35d.And, by making root diameter D 0.5 times below of distance b at impeller 31a～31d, 61a～the 61d of wall portion can not do one's utmost to limit the air stream to the diffuse outside of vortex blow-off outlet 35a～35d because of the S3 of negative pressure portion, therefore, can make the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 further be diffused into the outside of the 61a～61d of wall portion.

In addition, in the aircondition 1 of present embodiment,, can near the outside of vortex blow-off outlet 35a～35d, form the S3 of negative pressure portion reliably by making angle θ greater than 30 °.And,, can make the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 reliably to the diffuse outside of vortex blow-off outlet 35a～35d by making angle θ below 90 °.

Like this, in the aircondition 1 of present embodiment, though the almost whole face of the flat part 25 of heat exchanger 4 and partition member 24 in opposite directions, and the open communication 25a of flat part 25～25d, be on the part of vortex blow-off outlet 35a～35d of vortex shell 32a～32d flat part 25 of only being arranged on partition member 24, but by the above-mentioned wall 61a～61d of portion is set, can under the situation of the size that does not add the 37a～37d of maelstrom export department, make the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 to the diffuse outside of vortex blow-off outlet 35a～35d and by heat exchanger 4, can suppress to produce bias current through the air of over-heat-exchanger 4.

And; because the 61a～61d of wall portion is arranged on the S2 of the heat exchanger chamber side of the flat part 25 of partition member 24; therefore can not hamper vortex suction inlet 34a～34d; can not produce the problem that the dynamic pressure at the 37a of vortex export department～37d place is difficult to reclaim yet; and; space in supply fan room S1 is not abundant maybe must make cell enclosure 2 densifications the time, and to produce the method for bias current very effective as suppressing air through over-heat-exchanger 4.

(3) variation 1

In addition, also can sawtooth portion be set in the end of heat exchanger 4 sides of the 61a～61d of wall portion.With the 61b of wall portion is that example is when describing, as shown in Figure 5, the sawtooth portion 71 (Fig. 5 represents that sawtooth portion 71 is located at the situation in the side wall portion 62, but also same sawtooth portion 71 can be set in other wall portions 63～65) of triangular wave shape etc. can be set in the end of heat exchanger 4 sides of the 61b of wall portion.

Like this, owing to be provided with sawtooth portion 71 in the end of heat exchanger 4 sides of the 61a～61d of wall portion, thus the air that can suppress to blow out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 produces pressure oscillation in the end of heat exchanger 4 sides of the 61a～61d of wall portion.Thus, can suppress the noise that the pressure oscillation at end place of heat exchanger 4 sides of the 61a～61d of wall portion produces.

(4) variation 2

In addition, also can be at the inner surface of the 61a～61d of wall portion, be on the face of the 37a of vortex export department～37d side a plurality of pits to be set.With the 61b of wall portion is that example is when describing, as shown in Figure 6, can be at the inner surface of the 61b of wall portion, be on the face of the 37b of vortex export department side a plurality of pits 72 (Fig. 6 represents that a plurality of pits 72 are located at the situation in the side wall portion 62, but also same a plurality of pits 72 can be set in other wall portions 63～65) to be set.

Like this, because at the inner surface of the 61a～61d of wall portion, be to be provided with a plurality of pits 72 on the face of the 37a of vortex export department～37d side, thereby can make the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 face along the 37a of vortex export department～37d side of the 61a～61d of wall portion.Thus, can improve the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 effect to the diffuse outside of vortex blow-off outlet 35a～35d.

In addition, for obtain with at the inner surface of the 61a～61d of wall portion, be the identical effect of situation that a plurality of pits are set on the face of the 37a of vortex export department～37d side, also a plurality of through holes 73 can be set on the 61a～61d of wall portion.With the 61b of wall portion is example when describing, and as shown in Figure 7, can a plurality of through holes 73 (Fig. 7 represents that a plurality of through holes 73 are located at the situation in the side wall portion 62, but also same a plurality of through holes 73 can be set in other wall portions 63～65) be set on the 61b of wall portion.

(5) variation 3

In addition, also the sawtooth portion in the variation 1 and a plurality of pits in the variation 2 or through hole can be located on the 61a～61d of wall portion simultaneously.With the 61b of wall portion is that example is when describing, as shown in Figure 8, the sawtooth portion 71 of triangular wave shape etc. can be set in the end of heat exchanger 4 sides of the 61b of wall portion, and at the inner surface of the 61b of wall portion, be a plurality of pits 72 to be set on the face of the 37b of vortex export department side (Fig. 8 represents that sawtooth portion 71 is located in the side wall portion 62 and a plurality of pit 72 is located at situation in the side wall portion 62, but also same sawtooth portion 71 and a plurality of pit 72 can be set in other wall portions 63～65.In addition, also can replace a plurality of pits 72 and a plurality of through holes are set).

Thus, can obtain variation 1 and variation 2 both sides' effect.

(6) variation 4

In addition, in above-mentioned first embodiment aircondition 1 of (comprising variation 1～3), it is the center rotation that impeller 31a～31d is configured to the rotating shaft O along the flat part 25 of partition member 24, and the motor 33 of drives impeller 31a～31d rotation is configured in the rotating shaft O direction side of the vortex shell 32a～32d in the supply fan room S1.

Therefore, the air that blows out in vortex blow-off outlet 35a～35d heat exchanger chamber S2 of vortex shell 32a～32d mainly through over-heat-exchanger 4 across flat part 25 and vortex shell 32a～32d part in opposite directions, be difficult to through over-heat-exchanger 4 across flat part 25 and motor 33 part (particularly referring to the part between vortex shell 32b and the vortex shell 32c) in opposite directions, therefore, air through over-heat-exchanger 4 is easy to produce bias current, is easy to generate the problem of flowing resistance increase, draft capacity and the heat-exchange capacity decline at heat exchanger 4 places.

At this situation, in the aircondition 1 of this variation, as shown in Figure 9, the 37b of vortex export department, the 37c of vortex shell 32b, 32c tiltedly extends to open communication 25b, 25c to motor 33 inclinations under the situation that the size L of rotating shaft O direction does not strengthen on one side on one side, therefore, the air that blows out in the S2 of heat exchanger chamber be easier to through over-heat-exchanger 4 across flat part 25 and motor 33 part in opposite directions, can suppress to produce bias current through the air of over-heat-exchanger 4.And, can not add the size L of the rotating shaft O direction of the 37b of maelstrom export department, 37c, therefore, the dynamic pressure that also can not produce the 37b of vortex export department, 37c place is difficult to undesirable conditions such as recovery, can suppress the reduction of wind pushing performance.

＜the second embodiment 〉

Figure 10 and Figure 11 represent the pipeline type aircondition 101 as second embodiment of the aircondition that the present invention relates to.At this, Figure 10 is the side view (A of Figure 11 is to view) of aircondition 101.Figure 11 is the vertical view cutaway drawing of aircondition 101.This aircondition 101 is the pipeline configurations that are configured in the space at the ceiling back side of air conditioning chamber.This aircondition 101 by cold-producing medium connecting pipings (not shown) be disposed at outdoor outdoor unit (not shown) and be connected.

Aircondition 101 mainly has cell enclosure 102, centrifugal blower 103, heat exchanger 104.

＜cell enclosure 〉

Cell enclosure 102 is parts of whole slim case shape to the side elongation, is formed with: have unit suction inlet 102g, 102h and dispose the supply fan room S101 of centrifugal blower 103 on lower surface 102a and back side 102b (face of the paper upside of Figure 11); And on front surface 102c (face of the paper downside of Figure 11), have unit blow-off outlet 102i and dispose the S102 of heat exchanger chamber of heat exchanger 104.In addition, can be according to the condition that is provided with in the space at the ceiling back side, any one use among selected cell suction inlet 102g, the 102h.Supply fan room S101 and the S102 of heat exchanger chamber form separating before and after the space in the cell enclosure 102 by the partition member that is made of plate-shaped member 124 that extends to the side and vertically be configured in the cell enclosure 102.Particularly, the flat part 125 that in the present embodiment, that partition member 124 has is parallel with the front surface of cell enclosure 102 and the back side side quadrature of cell enclosure 102 (promptly with).And, be formed with two open communication 125a, 125b being communicated with supply fan room S101 and the S102 of heat exchanger chamber on this flat part 125, these two open communication 125a, 125b are corresponding with each vortex blow-off outlet 135a, the 135b (aftermentioned) of two vortex shell 132a, 132b of formation centrifugal blower 103.Two open communication 125a, 125b in the present embodiment, are the square holes of the rectangular shape of transverse extension along the length direction and the row arrangement of flat part 125.

＜centrifugal blower 〉

Centrifugal blower 103 is configured in the supply fan room S101, be used for after air is in unit suction inlet 102g or the unit suction inlet 102h suction draft unit room S101, boosting, and blow out by open communication 125a, the 125b heat exchanger chamber S102 of partition member 124.And centrifugal blower 103 mainly has: two impeller 131a, 131b, accommodate two vortex shell 132a, the 132b of each impeller 131a, 131b and the motor 133 of drives impeller 131a, 131b rotation.

At first impeller 131a, 131b are described with reference to Figure 10 and Figure 11.In the present embodiment, impeller 131a, 131b are the sirocco fan rotors of dual-sucking type, with rotating shaft O towards the side of cell enclosure 102 form and the row arrangement of the flat part 125 of partition member 124 (promptly along).In addition,, therefore, only the formation of impeller 131a is described at this because impeller 131a is identical structure with impeller 131b, replace expression impeller 131a each several part symbol a and to the formation label symbol b of impeller 131b, the explanation of omitting each several part.

Impeller 131a mainly comprises: be the discoideus mainboard 141a of center rotation with rotating shaft O; On two faces of the peripheral part of mainboard 141a with rotating shaft O be center configuration circlewise and separately an end be fixed on multi-disc wing plate 142a on the mainboard 141a; And be configured in the rotating shaft O direction both sides of mainboard 141a and connect the pair of side plates 143a of the other end of multi-disc wing plate 142a.

Below vortex shell 132a, 132b are described.In addition, because vortex shell 132a is identical structure with vortex shell 132b, therefore, only the formation of vortex shell 132a is described at this, replace expression vortex shell 132a each several part symbol a and to the formation label symbol b of vortex shell 132b, the explanation of omitting each several part.

Vortex shell 132a comprises: two vortex suction inlet 134a that are formed on two sides for the centrifugal blower that constitutes dual-sucking type; And form vortex blow-off outlet 135a to the direction blow out air that intersects with vortex suction inlet 134a.At this, vortex suction inlet 134a is towards the rotating shaft O direction opening of impeller 131a.Therefore, unit suction inlet 102g and the unit suction inlet 102h direction of intersecting (particularly being orthogonal direction) opening towards opening direction with vortex suction inlet 134a.In addition, the open communication 125a of vortex blow-off outlet 135a and partition member 124 disposes accordingly.

Particularly, in the present embodiment, vortex shell 132a is resinous parts, has by the vortex lower member 145a that covers impeller 131a from the below and covers the segmenting structure that the vortex upper-part 144a of impeller 131a constitutes from the top.And,, constitute the 137a of vortex export department that has two vortex suction inlet 134a and accommodate the vortex body 136a of impeller 131a and have vortex blow-off outlet 135a and be communicated with vortex body 136a by assembling these parts 144a, 145a.On vortex body 136a, be formed with and be trapped among each vortex suction inlet 134a two bell oral area 138a on every side.Interior all side ends of bell oral area 138a bend to bell to impeller 131a side.The 137a of vortex export department is the partially communicating square tube shape part with partition member 124 sides of vortex body 136a, its leading section is inserted among the open communication 125a on the flat part 125 that is formed at partition member 124, and side-prominent from flat part 125 heat exchanger 104 of partition member 124.In the vertical view of cell enclosure 102, the 137a of vortex export department along with flat part 125 roughly quadrature direction, promptly extend as the crow flies with the direction of rotating shaft O quadrature, in the side view of cell enclosure 102, the 137a of vortex export department slightly tilts downwards with the form that air is blown out slightly downwards.

In the present embodiment, in the vertical view of cell enclosure 102, motor 133 is configured in (being the rotating shaft O direction side of vortex shell 132a and vortex shell 132b) between vortex shell 132a and the vortex shell 132b, and is fixed on partition member 124 and the cell enclosure 102 by support component 133a.Therefore, between vortex shell 132a and vortex shell 132b, be formed with the gap corresponding with the size of motor 133.And two impeller 131a, 131b are connected on this motor 133, can drive rotation together by this motor 133.

By making this centrifugal blower 103 actions, air is passed through in the supply fan room S101 of unit suction inlet 102g or unit suction inlet 102h suction cell enclosure 102, air in the suction draft unit room S101 sucks in each vortex shell 132a, 132b by vortex suction inlet 134a, 134b, and blows out from interior all side direction outer circumferential sides of each impeller 131a, 131b.To the outer circumferential side of this impeller 131a, 131b blow out and boosted air from each vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 of vortex shell 132a, the 132b of the corresponding configuration of each open communication 125a, 125b of partition member 124 in blow out.

＜heat exchanger 〉

Heat exchanger 104 is configured in the S102 of heat exchanger chamber, is used for cooling off or heating being boosted by centrifugal blower 103 in supply fan room S101 and being blown out to air in the S102 of heat exchanger chamber from vortex blow-off outlet 135a, the 135b of vortex shell 132a, 132b.In the present embodiment, heat exchanger 104 is to intersect fin tube heat exchanger, with the almost whole face of the flat part 125 of partition member 124 in opposite directions and configuration abreast.Therefore, heat exchanger 104 disposes opposite to each other with vortex blow-off outlet 135a, the 135b of the 137a of vortex export department, 137b.In addition, to be configured to top oblique to unit blow-off outlet 102i inclination for heat exchanger 104.And, dispose drip tray 128 at the downside of heat exchanger 104, can be received in the dew that heat exchanger 104 places produce.

Thus, from vortex blow- off outlet 135a, 135b be blown out in the S102 of heat exchanger chamber air because of with the heat-transfer pipe of heat exchanger 104 in the cold-producing medium that flows carry out heat exchange and be cooled or heat, and blow out to indoor from unit blow-off outlet 102i.

In aircondition 101, also be provided with the 161a of wall portion, 161b with above-mentioned formation.Below with reference to Figure 10～Figure 12 the 161a of these wall portions, 161b are described.At this, Figure 12 is the enlarged drawing of Figure 11, is near the figure of the structure expression impeller 131a and the vortex shell 132a.

＜wall portion 〉

As Figure 11 and shown in Figure 12, the 161a of wall portion, 161b are the side-prominent parts of the heat exchanger 104 to the flat part 125 of partition member 124 of being located at each 137a of vortex export department, 137b outside.In addition, because the 161a of wall portion is identical structure with the 161b of wall portion in the present embodiment, therefore, only the formation of the 161a of wall portion is described at this, replace the expression wall 161a of portion each several part symbol a and to the formation label symbol b of the 161b of wall portion, the explanation of omitting each several part.

In the present embodiment, the 161a of wall portion is configured in the side direction of the side surface part 146 of the tubular vortex 137a of export department.And the 161a of wall portion is connected to the end of supply fan room S101 side on the outer fix of open communication 125a of flat part 125 of partition member 124, and from here heat exchanger 104 side-prominent forms extend.

In the aircondition 101 of present embodiment, because this wall 161a of portion is set, thereby can near the outside of vortex blow-off outlet 135a, form the low part (hereinafter referred to as the S103 of negative pressure portion) of pressure of the air that pressure ratio blows out in the 135a of the vortex export department heat exchanger chamber S102.

Particularly, the 161a of wall portion be configured in the side surface part 146 of the 137a of vortex export department lateral position, be the outside of the rotating shaft O direction of the 137a of vortex export department, in the S102 of heat exchanger chamber, near the outside of the rotating shaft O of vortex blow-off outlet 135a direction, form the negative pressure S103 of portion.And the 161a of wall portion is configured in the vortex shell 132b side of the adjacent vortex shell of conduct in the 137a of the vortex export department outside, therefore, in the S102 of heat exchanger chamber, forms the negative pressure S103 of portion in the vortex shell 132b of vortex blow-off outlet 135a side.In addition, the 161a of wall portion is configured in motor 133 sides in the 137a of the vortex export department outside, therefore, and in the S102 of heat exchanger chamber, at the motor 133 sides formation negative pressure S103 of portion of vortex blow-off outlet 135a.

In addition, in the present embodiment, the part that intersects from the face of heat exchanger 104 sides of 137a of vortex export department and flat part 125 is to the distance c of the crossing part of the face of heat exchanger 104 sides of the 161a of wall portion and flat part 125 below 0.5 times of rotor width W at impeller 131a.Particularly, the part that intersects from the face of the outer surface (being the face of the 161a of wall portion side) of the side surface part 146 of the 137a of vortex export department and heat exchanger 104 sides of flat part 125 is to the distance c of the crossing part of the inner surface (being the face of side surface part 146 sides of the 137a of vortex export department) of the 161a of wall portion and the face of heat exchanger 104 sides of flat part 125 below 0.5 times of rotor width W at impeller 131a.In the aircondition 101 of present embodiment,, thereby can near the outside of vortex blow-off outlet 135a, form the S103 of negative pressure portion reliably because distance c is at below 0.5 times of rotor width W.In addition, if the 161a of wall portion not with flat part 125 butts, the part that intersects with the face of heat exchanger 104 sides of flat part 125 when then prolonging the end of flat part 125 sides of the 161a of wall portion is equivalent to the crossing part of face of heat exchanger 104 sides of 161a of wall portion and flat part 125.

In addition, in the present embodiment, the end from the face of heat exchanger 104 sides of flat part 125 to heat exchanger 104 sides of the 137a of vortex export department apart from a greater than zero and at below 0.3 times of root diameter D of impeller 131a.Particularly, the end from the face of heat exchanger 104 sides of flat part 125 to heat exchanger 104 sides of the side surface part 146 of the 137a of vortex export department apart from a greater than zero and at below 0.3 times of root diameter D of impeller 131a.In the aircondition 101 of present embodiment, since apart from a greater than zero, be that heat exchanger chamber, the end S102 of heat exchanger 104 sides of the 137a of vortex export department is side-prominent, thereby the S103 of negative pressure portion that can constitute in the end and the space between the 161a of wall portion that form near the outside of vortex blow-off outlet 135a by heat exchanger 104 sides that are clipped in the 137a of vortex export department.

In addition, in the present embodiment, the distance b from the face of heat exchanger 104 sides of flat part 125 to the end of heat exchanger 104 sides of the 161a of wall portion is more than the distance a and at below 0.5 times of root diameter D of impeller 131a.Particularly, the distance b from the face of heat exchanger 104 sides of flat part 125 to the end of heat exchanger 104 sides of the 161a of wall portion is more than the distance a and at below 0.5 times of root diameter D of impeller 131a.In the aircondition 101 of present embodiment, since distance b more than distance a, be that more heat exchanger 104 is side-prominent than the end of heat exchanger 104 sides of the 137a of vortex export department the end of the 161a of wall portion, thereby can strengthen the pressure of the S103 of negative pressure portion that end and the space between the 161a of wall portion by heat exchanger 104 sides that are clipped in the 137a of vortex export department constitute and the pressure of the air that blows out in the vortex blow-off outlet 135a heat exchanger chamber S102 between pressure differential.

In addition, in the present embodiment, the face angulation θ of heat exchanger 104 sides of 161a of wall portion and flat part 125 is greater than 30 ° and below 90 °.Particularly, the face of heat exchanger 104 sides of the inner surface of the 161a of wall portion (being the face of side surface part 146 sides of the 137a of vortex export department) and flat part 125 is that the Outboard Sections angulation θ of the 161a of wall portion is greater than 30 ° and below 90 °.In the aircondition 101 of present embodiment,, thereby can near the outside of vortex blow-off outlet 135a, form the S103 of negative pressure portion reliably because the face angulation θ of heat exchanger 104 sides of the 161a of wall portion and flat part 125 is greater than 30 °.And,, thereby can make the air that blows out in the vortex blow-off outlet 135a heat exchanger chamber S102 reliably to the diffuse outside of vortex blow-off outlet 135a because the face angulation of heat exchanger 104 sides of the 161a of wall portion and flat part 125 is below 90 °.

(2) action of aircondition

Below with reference to Figure 10～Figure 12 the action of the aircondition 101 of present embodiment is described.

Make centrifugal blower 103 actions by starting motor 133, air is sucked in the supply fan room S101 of cell enclosure 102 by unit suction inlet 102g or unit suction inlet 102h, air in the suction draft unit room S101 sucks in each vortex shell 132a, 132b by vortex suction inlet 134a, 134b, and blows out from interior all side direction outer circumferential sides of impeller 131a, 131b.To the outer circumferential side of this impeller 131a, 131b blow out and boosted air from vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 of the corresponding configuration of open communication 125a, 125b of partition member 124 in blow out.And, from vortex blow- off outlet 135a, 135b be blown out in the S102 of heat exchanger chamber air because of with the heat-transfer pipe of heat exchanger 104 in the cold-producing medium that flows carry out heat exchange and be cooled or heat, and blow out to indoor from unit blow-off outlet 102i.

At this, in the aircondition 101 of present embodiment, because at the heat exchanger 104 of the oriented flat part 125 of arranged outside of the 137a of vortex export department, the 137b side-prominent 161a of wall portion, 161b, therefore, near the outside of vortex blow-off outlet 135a, 135b, form the low S103 of negative pressure portion of pressure of the air that pressure ratio blows out in vortex blow-off outlet 135a, the 135b heat exchanger chamber S102.And, the air (with reference to the arrow F of Figure 12) that blows out in vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 can flow to the S103 of this negative pressure portion, therefore, (the arrow f of the air stream when reference table is shown in vortex export department wall portion is not set) compares with the situation that wall portion is not set in vortex export department, to the diffuse outside of vortex blow-off outlet 135a, 135b.Particularly, the 161a of wall portion, 161b are configured in the outside of the rotating shaft O direction of the 137a of vortex export department, 137b respectively, in the S102 of heat exchanger chamber, form the negative pressure S103 of portion near the outside of the rotating shaft O of vortex blow-off outlet 135a, 135b direction.Therefore, as the aircondition 101 of present embodiment with impeller 131a, when 131b is configured to be the form of center rotation with the rotating shaft O along the flat part 125 of partition member 124, from being opened in the 137a of vortex export department on the direction that intersects with this rotating shaft O, the air that blows out in the 137b heat exchanger chamber S102 is difficult to the direction diffusion along rotating shaft O, but owing to form the negative pressure S103 of portion, thereby from vortex blow-off outlet 135a, the air that blows out in the 135b heat exchanger chamber S102 can flow to the S103 of this negative pressure portion, therefore, be easy to vortex blow-off outlet 135a, the diffuse outside of the rotating shaft O direction of 135b.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger 104.

And, the 161a of wall portion is configured in the vortex shell 132b side of the adjacent vortex shell of conduct in the 137a of the vortex export department outside, the 161b of wall portion is configured in the vortex shell 132a side of the adjacent vortex shell of conduct in the 137b of the vortex export department outside, therefore, in the S102 of heat exchanger chamber, form the negative pressure S103 of portion in the vortex shell 132b side of vortex blow-off outlet 135a and the vortex shell 132a side of vortex blow-off outlet 135b.Therefore, as the aircondition 101 of present embodiment, make impeller 131a, 131b is the center rotation with the rotating shaft O along the flat part 125 of partition member 124, and with impeller 131a, 131b and vortex shell 132a, 132b is on rotating shaft O direction and row arrangement when a plurality of, between the rotating shaft O direction of vortex shell 132a adjacent to each other and vortex shell 132b, form the gap, from the 137a of vortex export department, the air that 137b is blown out in the S102 of heat exchanger chamber is difficult to through the part corresponding with this gap, but owing to form the negative pressure S103 of portion, thereby from vortex blow-off outlet 135a, the air that blows out in the 135b heat exchanger chamber S102 can flow to the S103 of this negative pressure portion, therefore, be easy to the vortex shell 132b side of vortex blow-off outlet 135a and the vortex shell 132a side diffusion of vortex blow-off outlet 135b.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger 104.

In addition, the 161a of wall portion is configured in motor 133 sides in the 137a of the vortex export department outside, the 161b of wall portion is configured in motor 133 sides in the 137b of the vortex export department outside, therefore, in the S102 of heat exchanger chamber, form the negative pressure S103 of portion in motor 133 sides of vortex blow-off outlet 135a and motor 133 sides of vortex blow-off outlet 135b.Therefore, as the aircondition 101 of present embodiment with drives impeller 131a, the motor 133 of 131b rotation is configured in vortex shell 132a, during the rotating shaft O direction side of 132b, from vortex blow-off outlet 135a, 135b be blown out in the S102 of heat exchanger chamber air mainly through over-heat-exchanger 104 across flat part 125 and vortex shell 132a, 132b part in opposite directions, be difficult to through over-heat-exchanger 104 across flat part 125 and motor 133 part in opposite directions, but owing to form the negative pressure S103 of portion, thereby from vortex blow-off outlet 135a, the air that blows out in the 135b heat exchanger chamber S102 can flow to the S103 of this negative pressure portion, therefore, be easy to vortex blow-off outlet 135a, the motor 133b side diffusion of 135b.Thus, can suppress the reduction of draft capacity and can suppress to produce bias current through the air of over-heat-exchanger 104.

In addition, in the aircondition 101 of present embodiment,, can near the outside of vortex blow- off outlet 135a, 135b, form the S103 of negative pressure portion reliably by making below 0.5 times of rotor width W of distance c at impeller 131a, 131b.

In addition, in the aircondition 101 of present embodiment, by making apart from a greater than zero, promptly, make the 137a of vortex export department, heat exchanger chamber, the end S102 of heat exchanger 104 sides of 137b is side-prominent, can be at vortex blow-off outlet 135a, form near the outside of 135b by being clipped in the 137a of vortex export department, the end of heat exchanger 104 sides of 137b and the 161a of wall portion, the S103 of negative pressure portion that space between the 161b constitutes, the S103 of this negative pressure portion can make from vortex blow-off outlet 135a, the air that blows out in the 135b heat exchanger chamber S102 is to vortex blow-off outlet 135a, the effect of the diffuse outside of 135b strengthens.And, by making below 0.3 times of root diameter D at impeller 131a, 131b apart from a, the air that can guarantee to blow out in vortex blow- off outlet 135a, 135b heat exchanger chamber S102 between vortex blow- off outlet 135a, 135b and heat exchanger 104 is to the required enough distances of the diffuse outside of vortex blow- off outlet 135a, 135b.

In addition, in the aircondition 101 of present embodiment, by making distance b more than distance a, promptly, make the 161a of wall portion, the end of 161b is than the 137a of vortex export department, more heat exchanger 104 is side-prominent in the end of heat exchanger 104 sides of 137b, can strengthen by being clipped in the 137a of vortex export department, the end of heat exchanger 104 sides of 137b and the 161a of wall portion, the pressure of the S103 of negative pressure portion that space between the 161b constitutes with from vortex blow-off outlet 135a, pressure differential between the pressure of the air that blows out in the 135b heat exchanger chamber S102, therefore, can improve from vortex blow-off outlet 135a, the air that blows out in the 135b heat exchanger chamber S102 is to vortex blow-off outlet 135a, the effect of the diffuse outside of 135b.And, by making root diameter D 0.5 times below of distance b at impeller 131a, 131b, the 161a of wall portion, 161b can not do one's utmost to limit the air stream to the diffuse outside of vortex blow-off outlet 135a, 135b because of the S103 of negative pressure portion, therefore, can make the air that blows out in vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 further be diffused into the outside of the 161a of wall portion, 161b.

In addition, in the aircondition 101 of present embodiment,, can near the outside of vortex blow- off outlet 135a, 135b, form the S103 of negative pressure portion reliably by making angle θ greater than 30 °.And,, can make the air that blows out in vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 reliably to the diffuse outside of vortex blow- off outlet 135a, 135b by making angle θ below 90 °.

Like this, in the aircondition 101 of present embodiment, though the almost whole face of the flat part 125 of heat exchanger 104 and partition member 124 in opposite directions, and the open communication 125a of flat part 125,125b, be vortex shell 132a, the vortex blow-off outlet 135a of 132b, 135b only is arranged on the part of flat part 125 of partition member 124, but by the above-mentioned wall 161a of portion is set, 161b, the 137a of maelstrom export department can not added, make under the situation of the size of 137b from vortex blow-off outlet 135a, the air that blows out in the 135b heat exchanger chamber S102 is on one side to vortex blow-off outlet 135a, the outside of 135b, especially the diffuse outside of rotating shaft O direction can suppress to produce bias current through the air of over-heat-exchanger 104 on one side through over-heat-exchanger 104.

And; because the 161a of wall portion, 161b are arranged on the S102 of the heat exchanger chamber side of the flat part 125 of partition member 124; therefore can not hamper vortex suction inlet 134a, 134b; can not produce the problem that the dynamic pressure at the 137a of vortex export department, 137b place is difficult to reclaim yet; and; space in supply fan room S101 is not abundant maybe must make cell enclosure 102 densifications the time, and to produce the method for bias current very effective as suppressing air through over-heat-exchanger 104.

(3) variation 1

In the aircondition 101 of present embodiment, also can be identical with the variation 1 of the aircondition 1 of first embodiment, in the end of heat exchanger 104 sides of the 161a of wall portion, 161b sawtooth portion 171 (with reference to Figure 13) is set.Thus, can suppress the air that blows out and produce pressure oscillation in the end of heat exchanger 104 sides of the 161a of wall portion, 161b in vortex blow- off outlet 135a, 135b heat exchanger chamber S102, the pressure oscillation at place, end that can suppress heat exchanger 104 sides of the 161a of wall portion, 161b produces noise.

In addition, in the aircondition 101 of present embodiment, also can be identical with the variation 2 of the aircondition 1 of first embodiment, a plurality of pits 172 (with reference to Figure 14) are set or a plurality of through holes 173 (with reference to Figure 15) are set at the inner surface of the 161a of wall portion, 161b.Thus, can make the air that blows out in vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 along the 137a of vortex export department of the 161a of wall portion, 161b, the face of 137b side, can improve the air that blows out in vortex blow-off outlet 135a, the 135b heat exchanger chamber S102 effect to the diffuse outside of vortex blow- off outlet 135a, 135b.

In addition, in the aircondition 101 of present embodiment, also can be identical with the variation 3 of the aircondition 1 of first embodiment, sawtooth portion 171 and a plurality of pit 172 or through hole 173 are located at the 161a of wall portion, 161b last (with reference to Figure 16, expression is provided with the form of sawtooth portion 171 and pit 172 as an example) simultaneously.Thus, can obtain being provided with the effect that sawtooth portion brings and a plurality of pits are set or effect that through hole brings simultaneously.

(4) variation 2

In addition, in above-mentioned second embodiment aircondition 101 of (comprising variation 1), also can be identical with the variation 4 of the aircondition 1 of first embodiment, the 137a of vortex export department, the 137b of vortex shell 132a, 132b formed the form (with reference to Figure 17) of tiltedly extending to open communication 125a, 125b to motor 133 inclinations on one side on one side under the situation that the size L of rotating shaft O direction does not strengthen.Thus, the air that blows to the S102 of heat exchanger chamber be easier to through over-heat-exchanger 104 across flat part 125 and motor 133 part in opposite directions, can suppress to produce bias current through the air of over-heat-exchanger 104.And, can not add the size L of the rotating shaft O direction of the 137a of maelstrom export department, 137b, therefore, the dynamic pressure that also can not produce the 137a of vortex export department, 137b place is difficult to undesirable conditions such as recovery, can suppress the reduction of wind pushing performance.

＜other embodiment 〉

Abovely embodiments of the invention are illustrated, but concrete formation is not limited to these embodiment, can change in the scope that does not break away from inventive concept with reference to accompanying drawing.

For example, in above-mentioned first embodiment, hang the example of establishing on the type aircondition and be illustrated the present invention being applied in ceiling, in above-mentioned second embodiment, the example that the present invention is applied on the pipeline type aircondition is illustrated, but be not limited thereto, also the present invention can be applied on the following embedded into ceiling type aircondition, this embedded into ceiling type aircondition comprises and is separated the cell enclosure that parts are separated out supply fan room and heat exchanger chamber, have impeller and be configured in the supply fan room with the centrifugal blower of accommodating the vortex shell of impeller, it is indoor that the vortex blow-off outlet of heat exchanger and vortex shell is configured in heat exchanger opposite to each other.

Industrial utilizability:

Adopt words of the present invention, be separated the unit that parts are separated out supply fan room and heat exchanger chamber having Shell and the centrifugal blower that has impeller and accommodate the vortex shell of impeller be configured in the supply fan room, The vortex blow-off outlet of heat exchanger and vortex shell is configured in the indoor aircondition of heat exchanger opposite to each other, Can suppress the reduction of draft capacity and suppress to produce bias current through the air of over-heat-exchanger.

Claims (13)

1, a kind of aircondition (1) (101), it is characterized in that, comprise cell enclosure (2) (102), partition member (24) (124), impeller (31a～31d) (131a, 131b), vortex shell (32a～32d) (132a, 132b) and heat exchanger (4) (104)

Described cell enclosure have unit suction inlet (2a) (102a) and unit blow-off outlet (2b) (102i),

Described partition member is that the space in the described cell enclosure is separated into the supply fan room (S1) that is communicated with described unit suction inlet (S101) and heat exchanger chamber (S2) parts (S102) that are communicated with described unit blow-off outlet, and has flat part (25) (125), this flat part is formed with open communication (25a～25d) (125a, the 125b) that is communicated with described supply fan room and described heat exchanger chamber

Described impeller is configured in the described supply fan room,

Described vortex shell comprises: have vortex suction inlet (34a～34d) (134a, 134b) and accommodate the vortex body (36a～36d) (136a, 136b) and having and the vortex blow-off outlet of the corresponding configuration of described open communication ((37a～37d) (137a, the 137b) of the tubular vortex export department of (135a, 135b) of 35a～35d) of described impeller

It is indoor that described heat exchanger and described vortex blow-off outlet are configured in described heat exchanger opposite to each other, make after described vortex blow-off outlet is blown out to indoor this heat exchanger of air process of described heat exchanger to blow out from described unit blow-off outlet,

Side-prominent (61a～61d) (161a, the 161b) of wall portion of heat exchanger at the oriented described flat part of arranged outside of described vortex export department.

2, aircondition as claimed in claim 1 (1) (101), it is characterized in that ((distance (c) of the part that 61a～61d) (161a, 161b) and the face of the heat exchanger side of described flat part are crossing is at described impeller (below 0.5 times of rotor width (W) of (131a, 131b) of 31a～31d) to described wall portion for the part that the face of 37a～37d) (137a, 137b) and the heat exchanger side of described flat part (25) (125) intersects from described vortex export department.

3, aircondition as claimed in claim 1 or 2 (1) (101), it is characterized in that (distance (a) of the end of the heat exchanger side of (137a, 137b) of 37a～37d) is greater than zero and at described impeller (below 0.3 times of root diameter (D) of (131a, 131b) of 31a～31d) from the face of the heat exchanger side of described flat part (25) (125) to described vortex export department.

4, aircondition as claimed in claim 3 (1) (101), it is characterized in that (distance (b) of the end of the heat exchanger side of (161a, 161b) of 61a～61d) is from the face of the heat exchanger side of described flat part to described vortex export department (more than the distance (a) of the end of the heat exchanger side of (137a, 137b) of 37a～37d) and at described impeller (below 0.5 times of root diameter (D) of (131a, 131b) of 31a～31d) from the face of the heat exchanger side of described flat part (25) (125) to described wall portion.

5, as each described aircondition (1) (101) in the claim 1 to 4, it is characterized in that (61a～61d) (161a, 161b) and the face angulation (θ) of the heat exchanger side of described flat part (25) (125) are greater than 30 ° and below 90 ° in described wall portion.

6, as each described aircondition (1) (101) in the claim 1 to 5, it is characterized in that, (be provided with sawtooth portion (71) (171) on the end of the heat exchanger chamber's side of (161a, 161b) of 61a～61d) in described wall portion.

7, as each described aircondition (1) (101) in the claim 1 to 6, it is characterized in that, (be provided with a plurality of pits (72) (172) on the face of the vortex export department side of (161a, 161b) of 61a～61d) in described wall portion.

8, as each described aircondition (1) (101) in the claim 1 to 6, it is characterized in that, at the described wall (61a～61d) be provided with a plurality of through holes (73) (173) on (161a, 161b) of portion.

9, as each described aircondition (1) in the claim 1 to 8, it is characterized in that, described impeller (31a～31d) being configured to the rotating shaft (O) along described flat part (25) is the state that the center rotates,

This aircondition also comprise the described vortex shell that is configured in the described supply fan room (S1) (the rotating shaft direction side of 32a～32d), drive the motor (33) of described impeller rotation,

Described vortex export department (37b, 37c) tilts to described motor side on one side under the situation that does not increase rotating shaft direction size and extends to described open communication (25b, 25c) on one side.

As each described aircondition (101) in the claim 1 to 8, it is characterized in that 10, it is the state of center rotation that described impeller (131a, 131b) is configured to the rotating shaft (O) along described flat part (125),

Described wall portion (161a, 161b) is configured in the axial outside of rotation of described vortex export department (137a, 137b).

11, aircondition as claimed in claim 10 (101) is characterized in that, described impeller (131a, 131b) and described vortex shell (132a, 132b) alignment arrangements on the rotating shaft direction have a plurality of,

Described wall portion (161a, 161b) is configured in the adjacent vortex shell side in described vortex export department (137a, the 137b) outside.

12, as claim 10 or 11 described airconditions (101), it is characterized in that, also comprise the rotating shaft direction side that is configured in the described vortex shell (132a, 132b) in the described supply fan room (S101) and drive the motor (133) that described impeller (131a, 131b) rotates

Described wall portion (161a, 161b) is configured in the described motor side in described vortex export department (137a, the 137b) outside.

13, aircondition as claimed in claim 12 (101), it is characterized in that described vortex export department (137a, 137b) tilts to described motor side and extends to described open communication (125a, 125b) on one side on one side under the situation that does not increase rotating shaft direction size.

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