CN102878623A

CN102878623A - An outdoor unit of an air conditioning unit

Info

Publication number: CN102878623A
Application number: CN2012101928259A
Authority: CN
Inventors: 永富吉成
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2011-07-15
Filing date: 2012-06-12
Publication date: 2013-01-16
Anticipated expiration: 2032-06-12
Also published as: CN102878623B; JP5891408B2; JP2013024431A

Abstract

The utility model provides an outdoor unit of an air conditioning unit. Ventilation resistance is reduced while air output is increased. The outdoor unit (10) of the air conditioning unit comprises a heat exchanger (21) which is disposed on a bottom plate (12) of a unit housing (11) and at least forms one side of the unit housing (11), an outdoor fan unit (22) disposed on the upper portion of the heat exchanger (21), and a trumpet-shaped port (25) disposed around an impeller-type fan (24) of the outdoor fan unit (22). The trumpet-shaped port (25) comprises an inner wall (29) disposed on the outer side with enlarged opening relative to the inner surface (21A) of the heat exchanger (21). The outdoor unit comprises wind direction plates (81-83) tilting upward from the upper end of the inner surface (21A) of the heat exchanger to the inner wall (29) of the trumpet-shaped port (25).

Description

The outdoor unit of aircondition

Technical field

The present invention relates to utilize pressure fan will blow out upward by the air that heat exchanger sucks from the side outdoor unit of such aircondition.

Background technology

Usually, the known outdoor unit that following described aircondition is arranged, it has on the base plate of the framework of being configured in and forms at least the heat exchanger of a side of framework, is configured in the axial flow type pressure fan on this heat exchanger top, utilizes pressure fan to blow out upward by the air that heat exchanger sucks.In this outdoor unit, proposition has following structure, that is, heat exchanger is formed the cross section be コ shape roughly and be configured on the base plate along rear side and these three faces of two sides side of framework, when guaranteeing heat exchange area, can seek to save area (for example with reference to patent documentation 1) is set.

Patent documentation 1: TOHKEMY 2004-156800 communique

But, in this outdoor unit, seek on the one hand the save space of framework, the external diameter of the propeller type fan (impeller) by the increase pressure fan seeks to increase air output on the other hand.In this case, be accompanied by the maximization of the external diameter of propeller type fan, being configured in propeller type fan bell-mouthed internal diameter on every side also increases, therefore, this bell-mouthed inner peripheral surface is compared the inner surface of heat exchanger and is positioned at the outside, thereby forms step between the inner surface of this heat exchanger and bell-mouthed inner peripheral surface.Thus, owing to producing the delay of air at this step place, therefore there are the following problems: with the hold-up of air correspondingly, air stream variation and flowing resistance increase.

Summary of the invention

The present invention makes in view of above-mentioned condition, and its purpose is to provide a kind of outdoor unit that can seek to reduce the aircondition of flowing resistance when increasing air output.

To achieve these goals, the outdoor unit of aircondition of the present invention has: be configured on the base plate of framework and form at least the heat exchanger of a side of described framework, be configured in the axial flow type pressure fan on this heat exchanger top, and the impeller horn mouth on every side that is arranged on this pressure fan, the outdoor unit of described aircondition is characterised in that, described horn mouth constitutes to have the inner surface of comparing described heat exchanger and is in the inner peripheral surface that the outside and bore enlarge, described outdoor unit have upper end from the inner surface of described heat exchanger towards described bell-mouthed inner peripheral surface towards the wind direction board that tilts.

In this structure, can constitute, described wind direction board is arranged at the position lower than the leading section of described impeller.In addition, also can constitute, described heat exchanger has along the back side of described framework and the back part of left and right sides configurations and both sides are facial and form the cross section is roughly コ shape, is provided with respectively described wind direction board in described back part and two sides section.In addition, also can constitute, have the upper facial bearing support that extends and support the pair of motors supporting station along described heat exchanger, described pair of motors supporting station supports the motor of described pressure fan, and described wind direction board is fixed on the described bearing support.

According to the present invention, owing to horn mouth constitutes the inner peripheral surface that the inner surface of comparing heat exchanger is in the outside and bore expansion, therefore, can form significantly the external diameter of impeller, thereby can increase air output.And, since the upper end of inner surface with automatic heat-exchanger towards bell-mouthed inner peripheral surface towards the wind direction board that tilts, therefore, air flows to bell-mouthed inner peripheral surface along this wind direction board, thereby can prevent that air trapping from the inner surface of heat exchanger and the step place between the bell-mouthed inner peripheral surface, can reduce flowing resistance.

Description of drawings

Fig. 1 is the sectional side view of outdoor unit of the aircondition of present embodiment.

Fig. 2 is the top view of the internal structure of expression outdoor unit.

Fig. 3 is the stereogram of the supporting structure of expression fan motor.

Fig. 4 is expression outdoor fan and bell-mouthed profile.

Fig. 5 is the upward view of the configuration relation of expression cowling panel and bearing support.

Fig. 6 is the stereogram of expression horn mouth and wind direction board.

Fig. 7 is the profile of expression horn mouth and wind direction board.

Description of reference numerals

10 outdoor units

11 cell enclosure (framework)

16 upper shelf

16A, 16B, 16C frame plate (bearing support)

17 motor supporting stations

21 heat exchangers

22 outdoor fans (axial flow type pressure fan)

23 fan motors (motor)

24 propeller type fans

25 horn mouths

70 stage portion

81,82,83 wind direction boards

81A, 82A, 83A wind direction board body

81A1,82A1,83A1 upper end

81B, 82B, 83B be board fixedly

The 82C otch

85 bolts

The specific embodiment

Below, with reference to the description of drawings embodiments of the present invention.

The aircondition of this structure is made of outdoor unit 10 and indoor unit (not shown), flows in the refrigerant loop that cold-producing medium is formed utilizing refrigerant piping to connect, thereby carries out cooling operation and warming operation.Outdoor unit 10 is arranged on outdoor, carries out heat exchange with outdoor air, makes condensation of refrigerant and emit heat to extraneous air when cooling operation, when warming operation, makes the cold-producing medium evaporation and absorbs heat from extraneous air.Direction when in addition, the direction indication about the reaching up and down of the following stated is observed from its front face side under the state that is provided with outdoor unit 10.

Fig. 1 is the sectional side view of seeing outdoor unit 10 from the right side, and Fig. 2 is the top view of the internal structure of expression outdoor unit 10.Outdoor unit 10 has the roughly cell enclosure of cuboid box shape (framework) 11, and this cell enclosure 11 constitutes to be had: base plate 12, the pillar 14 and the front panel 15 that extend along vertical direction from four bights of this base plate 12.

As shown in Figure 2, dispose the heat exchanger 21 that bends to コ shape roughly when overlooking and form at base plate 12.Particularly, the side surface part of these heat exchanger 21 Component units shells 11, the left surface of this cell enclosure 11 is along the back side and right flank configuration certainly.In addition, as shown in Figure 1, dispose outdoor fan (axial flow type pressure fan) 22 on the top of heat exchanger 21.This outdoor fan 22 constitutes to have: be configured in heat exchanger 21 tops fan motor (motor) 23, be installed in the propeller type fan (impeller) 24 on the motor reel 51 of this fan motor 23.This propeller type fan 24 is configured to be positioned at the substantial middle of コ shape heat exchanger 21.

Around propeller type fan 24, be provided with the air of propeller type fan 24 suction sides to the horn mouth 25 that blows out the side guiding.This horn mouth 25 forms by resin forming, thereby can realize lightweight and form desirable shape.As shown in Figure 1, horn mouth 25 has and blows out opening 25A and relative aperture this blows out the large suction opening 25B of opening 25A and forms tubular, and has and the inwall 29 that blows out that opening 25A is communicated with and tilt in the mode that enlarges gradually towards suction opening 25B bore.The fan shroud 26 that opening 25A is used to prevent the contact propeller type fans 24 such as human body that blows out of horn mouth 25 covers.In addition, around horn mouth 25, be provided with decoration panel (not shown) across the heat-barrier materials such as foamed polystyrene 27.

If utilize fan motor 23 to drive propeller type fan 24 rotations, then extraneous air is from around the outdoor unit 10, more particularly the left surface side except the front, rear side and the right flank side from cell enclosure 11 is inhaled in the cell enclosure 11 shown in arrow X among the figure, and flows through the opening 25A that blows out that is arranged at horn mouth 25 facial on this cell enclosure 11 and be discharged to the outside.That is, this outdoor unit 10 constitutes the top that the air after the heat exchange is blown out from the top and blows out the type outdoor unit.

In cell enclosure 11, be provided with compressor (Fig. 1), accumulator 31, oil eliminator 32 and the receiving slit 33 of a part that consists of refrigerant loop at base plate 12, and pipe arrangement connects and takes in the refrigerant loop component parts such as valve body of cross valve 39 and expansion valve (not shown) and so on.Distolaterally carry out pipe arrangement via heat exchanger 21 and indoor unit and be connected as one of the pipe arrangement of described refrigerant loop component parts, carry out pipe arrangement with indoor unit and be connected as another of the pipe arrangement of described refrigerant loop component parts is distolateral, thereby consist of refrigerant loop for refrigerant circulation.

Cell enclosure 11 has the demarcation strip 35 that extends upward from base plate 12 in the front face side of this cell enclosure 11.This demarcation strip 35 extends to backward oblique the place ahead bending midway as the crow flies upward, and its upper end is connected with the electric fitting box 34 that is configured in horn mouth 25 front face side.Cell enclosure 11 inner utilization demarcation strips 35 are divided into heat-exchanging chamber 36 and Machine Room 37, take in the high compressor of frequency of maintenance, refrigerant loop component parts in this Machine Room 37, take in the low heat exchanger of frequency of maintenance 21, accumulator 31, oil eliminator 32 and receiving slit 33 as pressure vessel at heat-exchanging chamber 36.Therefore, in the present embodiment, if pull down front panel 15, then the operator can easily carry out the compressor 30 in the cell enclosure 11, the upkeep operation of electric fitting box 34 from front face side.And, utilize demarcation strip 35 can prevent that raindrop from directly falling on compressor 30 machines such as grade of taking in Machine Room 37.

Accumulator 31 is to make the cold-producing medium of inflow carry out gas-liquid separation to enter the pressure vessel of compressor 30 to prevent liquid refrigerant streams.In the present embodiment, accumulator 31 is configured in the substantial middle of base plate 12 and forms aspect ratio compressor 30 and the shape of oil eliminator 32 height such as grade.Therefore, be provided with on the top of accumulator 31 accumulator 31 is bearing in support unit 38 on the cell enclosure 11, prevent that this accumulator 31 from shaking.

Fig. 3 is the stereogram of the supporting structure of expression fan motor 23.

On heat exchanger 21, be provided with the upper shelf 16 that forms the frame shape along the コ shape shape of heat exchanger 21.As shown in Figure 3, upper shelf 16 has: along コ shape heat exchanger 21(Fig. 2) plate-shaped frame plate (bearing support) 16A that arranges respectively of each upper surface, 16B, 16C, the web 16D that the front end of

frame plate

16A, 16C is linked.Four bights of upper shelf 16 and each pillar 14 link.

Each

frame plate

16A, 16B, 16C have respectively the 16A1 of stator section, 16B1, the 16C1 that the inner edge portion of making forms to the bending of vertical below, are separately installed with wind direction board described later at the described stator 16A1 of section, 16B1,16C1.

Between frame plate 16B and web 16D, set up the pair of

motors supporting station

17,17 that extends with

frame plate

16A, 16C almost parallel ground, fan motor 23 is fixed on the motor supporting station 17,17.Described motor supporting station 17, the 17th, the below opens wide and the cross section is the parts that コ shape ground forms, so that the mode of コ shape opening towards the below is configured on the upper shelf 16.Motor supporting station 17 has: the interior board (inner surface) 74 that mounting has upper plate portion (upper facial) 72 that stay 54,54 approximate horizontal are installed, the outer board (outer surface) 73 that extends from the outer end of the width of upper plate portion 72 downwards, extends downwards from the inner of the width of upper plate portion 72.Motor supporting station 17, the 17th, metal channel parts easily obtains.

In addition,

motor supporting station

17,17 is configured in respectively apart from frame plate 16B and the web 16D length direction (width of cell enclosure 11: the equidistant position of substantial middle section A direction among the figure).And fan motor 23 is fixed on

motor supporting station

17,17 length direction (the depth direction of cell enclosure 11: substantial middle section B direction among the figure).That is, fan motor 23(and propeller type fan 24) be configured to be positioned at the substantial middle of コ shape heat exchanger 21, and be positioned at the roughly top of above-mentioned accumulator 31.

Fan motor 23 has: cylindrical body section 52, extend upward and support motor reel 51(Fig. 1 of propeller type fan 24 from body 52).Propeller type fan 24 has: resinous wheel hub 45, have the blade angle of regulation and across the integrally formed

multi-disc blade

46,46 in interval of regulation in the periphery of this wheel hub 45.

On body 52, the fin 53 of heat transmission is formed on peripheral part, and is formed with a pair of installation stay (stay) 54,54 that extends along peripheral part approximate horizontal ground.Stay 54,54 is installed to be configured to clip from the outside body 52 and to arrange in parallel to each other.

The body 52 of fan motor 23 is configured between the

motor supporting station

17,17, and, stay 54,54 is installed is positioned on the

motor supporting station

17,17, utilize run through from the top stay 54 is installed, a plurality of set bolts 55 of 54 are fastened on the motor supporting station 17,17.At this, the air output of the setting height(from bottom) position of known fan motor 23 when making propeller type fan 24 rotation is associated.Therefore, by between the stay 54 of fan motor 23 and

motor supporting station

17,17, inserting liner (not shown), can easily regulate the setting height(from bottom) position of this fan motor 23.

Fig. 4 is the profile of expression outdoor fan 22 and horn mouth 25.

As mentioned above, in the present embodiment, if the propeller type fan 24 of rotating room's external fan 22, then extraneous air is inhaled in the cell enclosure 11 by heat exchanger 21 from the left surface side except the front, rear side and the right flank side of cell enclosure 11, discharges by the opening 25A that blows out at the upper facial horn mouth 25 that arranges of this cell enclosure 11.

In this case, because the motor supporting station 17 of the fan motor 23 of outdoor fan 22 and supports

fans motor

23,17 streams along air extend and arrange, therefore, produce the flowing resistance that hinders air stream.Therefore, in the present embodiment,

motor supporting station

17,17 and fan motor 23 below (upstream side) be respectively arranged with reduce

motor supporting station

17,17 and fan motor 23 below rectification part 61 and the cowling panel 40 of flowing resistance of the air stream that flows.

Rectification part 61 and cowling panel 40 are formed by metal-made sheet material,

rectification part

61,61 be installed in respectively

motor supporting station

17,17 below, cowling panel 40 is installed in the mode that is erected between the

motor supporting station

17,17 at the lower position of fan motor 23.

Rectification part 61 forms the cross section and is the bar-shaped of V-arrangement roughly, and this rectification part 61 has: the vertical board 62 that extends downwards along the interior board 74 of motor supporting station 17 roughly vertically, from the lower end of vertical board 62 link to each other towards the lower end of the outer board 73 of motor supporting station 17 and the inclination board 63 that extends upward, with this inclination board 63 and along should outside roughly vertical the fixedly board 64 of extension upward of board 73.

Rectification part 61 is configured to the opening below the below covers motor supporting station 17, in the roughly whole length of motor supporting station 17, to be provided with integratedly rectification part 61 with the overlapping mode of the roughly whole length of the peristome 16E of upper shelf 16.The cross sectional shape of rectification part 61 is identical on its whole length.

Rectification part 61 utilizes vertical board 62 to reach fixedly board 64 clamping motor supporting stations 17, and utilize and to pass respectively described vertical board 62 and the fixing bolt 66 of the hole section of board 64 (omit and illustrate), be fastened on the interior board 74 and outer board 73 of motor supporting station 17.

When rectification part 61 was fixed on the motor supporting station 17, it formed the convex of the general triangular more and more thinner towards the below, and the top 61A of V-arrangement is outstanding towards the upstream side of air stream.The outer surface portion of inclination board 63 becomes the inclined plane 63A towards the lateral surface side direction top inclination of cell enclosure 11 from top 61A.Inclined plane 63A similarly forms in up inclination mode from the interior board 74 of motor supporting station 17 to outer board 73.

The top 61A of rectification part 61 is positioned at the position of being partial to fan motor 23 sides and the lower end that is positioned at vertical board 62 at the width of motor supporting station 17.Thus, motor supporting station 17 following zones all can be formed as inclination board 63, therefore, the air in the whole zone of lower face of arrival motor supporting station 17 can be mobile and mobile along the external diameter direction of propeller type fan 24 towards the lateral surface side direction oblique upper of cell enclosure 11 along inclined plane 63A.Therefore, can make more air stream flow to the outer diameter part side of the high propeller type fan of rotating speed 24, thereby can increase the flowing resistance that air quantity also can seek to reduce motor supporting station 17.

On the other hand, cowling panel 40 is that the cross section is the bending of V-arrangement roughly and the sheet material that forms, and it constitutes has: below the substantial middle of fan motor 23 along top 41 that motor supporting station 17 extends, certainly the inclination board 42 that extends upward towards the lower end of the outer board 73 of motor supporting station 17 respectively of this top 41, link to each other with this inclination board 42 and along should outside roughly vertical the fixedly board 43 of extension upward of board 73.

As shown in Figure 5, the lower position that cowling panel 40 is arranged on when overlooking and fan motor 23 is overlapping.Cowling panel 40 is used for preventing air trapping below fan motor 23 and reduces the flowing resistance of air stream, and therefore, it is to cover fan motor 23 this degree that its size is preferably formed.Relative therewith, if cowling panel 40 is excessive, the air capacity that then causes flowing around fan motor 23 because of this cowling panel 40 reduces, and probably can not fully cool off this fan motor 23.Therefore, in the present embodiment, the length of cowling panel 40 forms, and the length L 1 on the direction that motor supporting station 17 extends is less than the external diameter L2 of fan motor 23, thereby can cooling fan motor 23 and reduce flowing resistance.

As mentioned above, in the present embodiment, because rectification part 61 being installed below motor supporting station 17, therefore, cowling panel 40 is installed on the motor supporting station 17 overlappingly with this rectification part 61.Particularly, the fixedly board 43 of cowling panel 40 is overlapping with the fixedly board 64 of rectification part 61, and board 64 together utilizes bolt 66 to be fixed on the outer board 73 of motor supporting station 17 to above-mentioned fixedly board 43 with being somebody's turn to do fixedly.

When cowling panel 40 was fixed on the motor supporting station 17, it formed the convex of the general triangular more and more thinner towards the below, and the top 41 of V-arrangement is outstanding towards the upstream side of air stream in the substantial middle section of fan motor 23.The outer surface portion of inclination board 42 becomes the 41 inclined plane 42A that tilt towards the lateral surface side direction top of cell enclosure 11 from the top.This inclined plane 42A 41 similarly forms in up inclination mode to the outer board 73 of motor supporting station 17 from the top.

Thus, can make the air that arrives the whole zone of fan motor 23 lower faces mobile and mobile along the external diameter direction of propeller type fan 24 towards the lateral surface side direction oblique upper of cell enclosure 11 along each inclined plane 42A.Therefore, can make more air stream flow to the outer diameter part side of the high propeller type fan of rotating speed 24, thereby can increase the flowing resistance that air quantity also can seek to reduce fan motor 23.

And, because the top 41 of cowling panel 40 is positioned at the substantial middle subordinate side of fan motor 23, therefore, the air approximate equality ground that arrives these fan motor 23 lower faces can be distributed, can suppress the uneven also effectively with the outside of Bas Discharged to cell enclosure 11 of air quantity.

In the present embodiment, the inclination board 42 of cowling panel 40 and

rectification part

61,64 angle of inclination form roughly the same.Thus, cowling panel 40 and rectification part 61 are close to, and therefore, can reduce flowing resistance, and, can make the direction of the air stream that the inclined plane 63A of inclined plane 42A along each cowling panel 40, rectification part 61 flows consistent, thereby can improve rectification effect.

In addition, as mentioned above, in the present embodiment, be provided with on the top of accumulator 31 accumulator 31 is bearing in support unit 38 on the cell enclosure 11.This support unit 38 similarly also can become the flowing resistance that hinders air stream with fan motor 23 and motor supporting station 17.Therefore, support unit 38 is formed by the metal-made pole, is formed with respectively fixed

part

38A, 38B at the two ends of this pole.A fixed part 38A is fixed on the top of accumulator 31, and another fixed part 38B is fixed on the frame plate 16B that is positioned at upper shelf 16 rear side.

Thus, form support unit 38 by utilizing pole, can reduce projected area, and because therefore the smooth outer surface of support unit 38 can seek to reduce flowing resistance.

And, in the present embodiment, as shown in Figure 5, support unit 38 be configured to when overlooking and the top 41 of cowling panel 40 overlapping.According to said structure, produced disorderly air when flowing through support unit 38 and directly be assigned with at the top 41 of cowling panel 40, therefore, the disorder of air can be suppressed at Min..Therefore, compare with the structure that support unit 38 is arranged on other positions, can reduce flowing resistance, thereby can seek to reduce the flowing resistance of outdoor unit.

As shown in Figure 5, the outdoor unit 10 of present embodiment constitutes, suction opening 25B(Fig. 1 of horn mouth 25) diameter L4 forms larger than the width L3 of the peristome of the upper shelf 16 that is configured in heat exchanger 21 tops, correspondingly seeks to increase air output by the external diameter that increases propeller type fan 24 with above-mentioned increase.In this case, as shown in Figure 1, be accompanied by the maximization of propeller type fan 24 external diameters, the inwall of horn mouth 25 (inner peripheral surface) 29 compared with the inner surface 21A of heat exchanger 21 and is positioned at the outside, thereby forms step 70 between the inwall 29 of the inner surface 21A of this heat exchanger 21 and horn mouth 25.Thus, owing to producing the delay of air at this step 70 places, therefore there are the following problems: with the hold-up of air correspondingly, air stream variation and flowing resistance increase.

Therefore, as shown in Figure 6, the upper end of inner surface 21A that has automatic heat-exchanger 21 in upper shelf 16 towards the inwall 29 of horn mouth 25 towards the wind direction board 81～83 that tilts.In the present embodiment, コ shape forms owing to heat exchanger 21 bends to roughly when overlooking, and therefore, disposes respectively wind direction board 81～83 in the part corresponding with left surface, the back side and the right flank of cell enclosure 11.

Because it is identical to be configured in

wind direction board

81,83 the shape of two sides, therefore only wind direction board 81 is described.This wind direction board 81 has: the trapezoidal wind direction board body 81A that the width on top forms narrowly, the fixedly board 81B that links to each other and extend to vertical below with the lower end of this wind direction board body 81A.Should be fixedly board 81B utilize bolt 85 to be fixed on the 16A1 of stator section of the frame plate 16A that is configured in the left surface side of upper shelf 16.

In addition, the wind direction board 82 that is configured in rear side also consists of the structure roughly the same with above-mentioned wind direction board 81, but owing to being fixed with above-mentioned motor supporting station 17 on the frame plate 16B of side overleaf, therefore, be formed be used to the otch 82C that avoids this motor supporting station 17.

According to this structure, since the upper end of inner surface 21A with automatic heat-exchanger 21 towards the inwall 29 of horn mouth 25 towards the wind direction board 81～83 that tilts, therefore, air along described wind direction board 81～83 shown in arrow D among the figure, inwall 29 directions along horn mouth 25 flow, thereby can prevent step 70 places of air trapping between the inwall 29 of the inner surface 21A of heat exchanger 21 and horn mouth 25, can reduce flowing resistance.

In addition, as shown in Figure 7, above-mentioned wind direction board 81～83 is arranged to make the position of upper end 81A1～83A1 than the low angle of leading section 46A of the blade 46 of propeller type fan 24.Thus, can prevent from that wind direction board 81～83 and propeller type fan 24 from producing to interfere, and can suppress step 70 places of air trapping between the inwall 29 of the inner surface 21A of heat exchanger 21 and horn mouth 25.

As described above described, according to present embodiment, the outdoor unit 10 of aircondition has: be configured on the base plate 12 of cell enclosure 11 and form at least a side of cell enclosure 11 heat exchanger 21, be configured in these heat exchanger 21 tops outdoor fan 22, be arranged on the horn mouth 25 around the propeller type fan 24 of this outdoor fan 22, horn mouth 25 constitutes the inwall 29 that has the inner surface 21A that compares heat exchanger 21 and be in the outside and bore expansion, therefore, the external diameter of propeller type fan 24 can be formed significantly, thereby air output can be increased.And, since the upper end of inner surface 21A with automatic heat-exchanger 21 towards the inwall 29 of horn mouth 25 towards the wind direction board 81～83 that tilts, therefore, inwall 29 directions of air along described wind direction board 81～83 along horn mouth 25 flow, thereby can prevent step 70 places of air trapping between the inwall 29 of the inner surface 21A of heat exchanger 21 and horn mouth 25, can reduce flowing resistance.

In addition, according to present embodiment, wind direction board 81～83 is arranged to make the position of upper end 81A1～83A1 than the low angle of leading section 46A of the blade 46 of propeller type fan 24.Thus, can prevent that wind direction board 81～83 and propeller type fan 24 from interfering, and can suppress step 70 places of air trapping between the inwall 29 of the inner surface 21A of heat exchanger 21 and horn mouth 25.

In addition, according to present embodiment, heat exchanger 21 along the back side of cell enclosure 11 and left and right sides form the cross section and be roughly コ shape, each face described コ shape is respectively arranged with wind direction board 81～83, therefore, in the miniaturization that realizes cell enclosure 11, can prevent step 70 places of air trapping between the inwall 29 of the inner surface 21A of heat exchanger 21 and horn mouth 25, can reduce flowing resistance.

In addition, according to present embodiment, has the upper facial frame plate 16A～16C that extends and support pair of

motors supporting station

17,17 along heat exchanger 21, the fan motor 23 of described pair of

motors supporting station

17,17 supporting outdoor fans 22, wind direction board 81～83 is separately fixed on frame plate 16A～16C, therefore wind direction board 81～83 can be installed easily.

Above, be illustrated for one embodiment of the present invention, but the present invention is not limited to this.For example, in the present embodiment, consist of and to have the structure of the wind direction board 81～83 that is separately fixed on frame plate 16A～16C, form this wind direction board 81～83 cylindric and be fixed in structure on the frame plate but also can consist of.

In addition, in the present embodiment, the 16A1 of stator section that has illustrated at frame plate 16A～16C, 16B1,16C1 be the structure of wind direction board 81～83 fixedly, as long as but self-evident wind direction board 81～83 can be fixed on frame plate 16A～16C upper, also can be fixed in other positions.

Claims

1. the outdoor unit of an aircondition, have: be configured on the base plate of framework and form at least a side of described framework heat exchanger, be configured in the axial flow type pressure fan on this heat exchanger top and be arranged on horn mouth around the impeller of this pressure fan, the outdoor unit of described aircondition is characterised in that

Described horn mouth constitutes to have the inner surface of comparing described heat exchanger and is in the inner peripheral surface that the outside and bore enlarge, described outdoor unit have upper end from the inner surface of described heat exchanger towards described bell-mouthed inner peripheral surface towards the wind direction board that tilts.

2. the outdoor unit of aircondition as claimed in claim 1 is characterized in that,

Described wind direction board is arranged at the position lower than the leading section of described impeller.

3. the outdoor unit of aircondition as claimed in claim 1 or 2 is characterized in that,

Described heat exchanger has along the back side of described framework and the back part of left and right sides configurations and both sides are facial and form the cross section is roughly コ shape, is provided with respectively described wind direction board in described back part and two sides section.

4. such as the outdoor unit of each described aircondition in the claim 1 ~ 3, it is characterized in that,

Have the upper facial bearing support that extends and support the pair of motors supporting station along described heat exchanger, described pair of motors supporting station supports the motor of described pressure fan, and described wind direction board is fixed on the described bearing support.