CN2667371Y - Integrated air conditioner - Google Patents

Abstract

The utility model discloses an integrated air conditioner, which comprises: a chassis that forms a bottom; a compressor for heat exchange; a heat exchanger capable of heat exchange; an air director for guiding air flow; a plurality of indoor and outdoor fans for air flow on which a pore plate with a plurality of orifices are provided; a front panel at the chassis front end capable of forming a front end; a casing capable of forming top surface and side surface. The left and right sides inside the utility model are respectively provided with a fan to which a pore plate with a pair of orifices are provided, so the air can be supplied in compliance with the indoor heat exchange area, thus enhancing the heat exchange efficiency. In addition, the slope between the main board of the orifice and the upper panel is capable of smoothing air flow, and the reinforced rib provided at upper panel enhances the upper panel strength so as to strongly support the upper air director and the upper air director components.

Description

Package AC plant

Technical field

The utility model relates to a kind of air-conditioner, particularly relate to a kind of orifice plate be provided with can with the package AC plant of the corresponding throttle orifice of quantity of indoor fan.

Background technology

Fig. 1 is the package AC plant STRUCTURE DECOMPOSITION stereogram of prior art.Fig. 2 is the package AC plant external structure and the air flow process schematic diagram of prior art.As shown in Figure 1 and Figure 2, in this package AC plant, chassis 1 constitutes the bottom surface of air-conditioner.The place ahead, indoor of 1 is provided with front panel 3 on the chassis.The lower end of front panel 3 is formed with the air suction structure 3i that can suck room air, its upper end then be provided with can be after indoor discharge heat exchange the air discharge grille 3e of air.And air discharge grille 3e is provided with can be to a plurality of steam vent 3e ｀ of indoor discharge air.Simultaneously, the place ahead of air suction structure 3i is provided with suction grille 4, and is provided with a plurality of suction hole 4 ｀ that suck air on suction grille 4, and also is provided with not shown filter between suction grille 4 and air suction structure 3i.The inboard of front panel 3 is provided with indoor heat converter 5.In indoor heat converter 5, its inner working fluid can with carry out heat exchange by air suction structure 3i inhaled air.Indoor heat converter 5 is positioned on the bottom surface of air guide device 7.The rear end of indoor heat converter 5 is provided with air guide device 7 on the chassis 1.The effect of air guide device 7 is that whole air-conditioner is divided into indoor and outside, like this, under the effect of air guide device 7, just can not produce air between indoor and the outside and flow.The upper end of air guide device 7 is provided with the support arm that can be connected with the following guard shield that will narrate 18.The inside of air guide device 7 is provided with volute 9.Then be provided with on the volute 9 by the guide face 9g of certain curvature from the bending of a certain side direction opposite side.And, in the front of volute 9, promptly with on the indoor heat converter 5 corresponding positions be provided with orifice plate 11.Orifice plate 11 is provided with the throttle orifice 12 that the air through indoor heat converter 5 can be caused on the following indoor fan 13 that will narrate.And the upper end of orifice plate 11 is provided with integrally formed with it and the air after the heat exchange can be caused the exhaust guide 11e of air discharge grille 3e.Simultaneously, be provided with indoor fan 13 in the inside of volute 9, it is mobile that it can make room air pass through air suction structure 3i, indoor heat converter 5 and throttle orifice 12 generations.Indoor fan 13 can be discharged by throttle orifice 12 suction air and from its circumferencial direction, and the air of discharging then is directed to exhaust guide 11e along guide face 9g.More than Shuo Ming structure is positioned at the indoor of package AC plant, but and is provided with the motor 15 of drive chamber's internal fan 13 and Air Blast fan 17 by the outside that air guide device 7 is divided.The rotating shaft of motor 15 forms along opposite direction is outstanding.The rotating shaft of one sidespin runs through air guide device 7 and extends to the center of volute 9, and the turning cell internal fan 13 thus, then are provided with Air Blast fan 17 on the outside rotating shaft of motor 15.Air Blast fan 17 can make it carry out heat exchange by the following outdoor heat converter that will narrate 19 after the outdoor suck up outside air of air-conditioner.Air Blast fan 17 is provided with the ring 17r that can connect blade end.And also be provided with the guard shield 18 of the air-flow that bootable Air Blast fan 17 produces on the chassis 1.Guard shield 18 is provided with through hole 18 ｀ that outdoor heat converter 19 and Air Blast fan 17 are interconnected.Guard shield 18 just can will cause outdoor heat converter 19 because of Air Blast fan 17 rotates the air-flow that produces like this.Guard shield 18 is arranged on the two ends of outdoor heat converter 19, and is connected with air guide device 7 by support arm.The outside on chassis 1 is provided with the outdoor heat converter 19 relative with guard shield 18.The effect of outdoor heat converter 19 is to make the extraneous air of the suction working fluid inner with it carry out heat exchange.And the position on the chassis 1 between air guide device 7 and the guard shield 18 is provided with the compressor 20 in the air handling system.At last, utilize casing 21 to close as above each element of the formation air-conditioner of setting, so that be isolated from the outside.The indoor of air-conditioner is arranged on to be needed to regulate in the indoor environment of air, and the outside then is arranged on outdoor.But the package AC plant of this prior art has following problem: owing to only be provided with an indoor fan 13 in this air-conditioner, therefore also only be provided with a throttle orifice 12 on orifice plate 11.And, therefore utilize circular single chamber internal fan 13 and throttle orifice 12 just can't carry out heat exchange fully because indoor heat converter 5 has cube structure.

Summary of the invention

In order to address the above problem, the purpose of this utility model is to provide a kind of package AC plant that a plurality of indoor fans and orifice plate are provided with the throttle orifice suitable with indoor fan quantity that has.

In order to achieve the above object, the package AC plant that provides of the utility model comprises: the chassis that constitutes the bottom surface; Compressor in the heat-exchange system; The heat exchanger that can make inner working fluid and air carry out heat exchange; Bootable air flow air guider; A plurality of indoor fans and outdoor fan that air is flowed; Which is provided with the orifice plate of a plurality of throttle orifices as air flow passage; Be arranged at the front end on chassis and can constitute the front panel of front end face; With a certain side that is fixed on the chassis and can constitute the casing of end face and two sides.

Described orifice plate comprises: the mainboard that is provided with a plurality of throttle orifices; Tilt to extend and the inclined plane of formation by certain angle from the upper end of mainboard; Extend and the top panel of formation by certain angle with front end from the inclined plane.

Described top panel is provided with the ribs that can strengthen intensity.

It is corresponding with the quantity of indoor fan that throttle orifice on the described orifice plate is provided with quantity.

Described throttle orifice and indoor fan are provided with a pair of respectively.

The package AC plant that the utility model provides be respectively be provided with about its indoor an indoor fan and on be provided with can with the orifice plate of these two corresponding a pair of throttle orifices of indoor fan, so just can force to send the air that is complementary with indoor heat converter area, thereby can improve heat exchange efficiency with cube-shaped structure.In addition, the mainboard and the inclined plane between the top panel that are arranged on orifice plate can make the air of being forced from the below to deliver to the top by indoor fan flow more smooth and easy, and the ribs that is arranged on the top panel can also strengthen the intensity of top panel, thereby can more firmly support whole upper end air guide device and be arranged at several elements on the air guide device of upper end.

Description of drawings

Below in conjunction with the drawings and specific embodiments package AC plant of the present utility model is elaborated.

Fig. 1 is the package AC plant STRUCTURE DECOMPOSITION stereogram of prior art.

Fig. 2 is the package AC plant external structure and the air flow process schematic diagram of prior art.

Fig. 3 is a package AC plant external structure stereogram of the present utility model.

Fig. 4 is a package AC plant STRUCTURE DECOMPOSITION stereogram of the present utility model.

Fig. 5 is a package AC plant partial structurtes exploded perspective view of the present utility model.

Fig. 6 is by air guide device and orifice plate flow air flow regime schematic diagram in the package AC plant of the present utility model.

Fig. 7 is a package AC plant aperture plate structural perspective of the present utility model.

Fig. 8 is a front panel structure stereogram in the package AC plant of the present utility model.

Fig. 9 discharges the vertical structure cutaway view of air condition by internal exhaust passages in the package AC plant of the present utility model for expression.

Figure 10 is a vertical structure cutaway view of expressing internal state when carrying out air cleaning in package AC plant of the present utility model.

The specific embodiment

As Fig. 3～shown in Figure 10, in the package AC plant that the utility model provides, the chassis 100 that constitutes the air-conditioner bottom surface can be divided into indoor and outside, on it various elements can be set.The indoor be provided with front panel 200 foremost.Front panel 200 has the outstanding forward arcuate structure in centre, its lower end is provided with the front suction gas port 210 that the air of the interior space can be sucked air-conditioner inside, its both sides then are provided with side air entry 215, therefore, room air just can be from the lower end of front panel 200 and the inside of side inflow air-conditioner.The upper end of front panel 200 be provided with can be after the interior space be discharged heat exchange the indoor exhaust mouth 220 of air, and on indoor exhaust mouth 220, be provided with the exhaust guide 222 of airflow direction controllable air.The back side of front panel 200 is provided with the alternative exhaust valve 230 that opens and closes indoor exhaust mouth 220.Exhaust valve 230 be by the mode that slides up and down open or close chamber in exhaust outlet 220, therefore, also be provided with on the back side of front panel 200 and can control the door switch unit that exhaust valve 230 opens or cuts out.As shown in Figure 8, described door switch unit comprises: the electric motor mounting structure 242 that is fixed on front panel 200 back sides; Be arranged on the drive motors 244 of electric motor mounting structure 242 1 sides; The rotating shaft 246 that forms by the central shaft extension of drive motors 244; Be arranged on the rotary pinion 248 on the rotating shaft 246; With the tooth bar 232 that can be meshed with rotary pinion 248.Tooth bar 232 is arranged on the back side of exhaust valve 230, and forms one with it, and it can make exhaust valve 230 move up or down along with the rotation of rotary pinion 248.That is, when when drive motors 244 is connected external power source it being rotated, rotary pinion 248 with matching also will rotate, thereby exhaust valve 230 is slided up and down.Chassis 100 is provided with can divide indoor and outside, and the air guide device 300 of bootable indoor air flows.Described air guide device 300 comprises lower end air guide device 310 that is oppositely arranged on air guide device 300 lower ends and the upper end air guide device 350 that is arranged on air guide device 310 upper ends, lower end.The lower end of lower end air guide device 310 is provided with the indoors side underchassis 320 that forms one with it.That is, chassis interior 320 is outstanding forward and form after the vertical bending in the lower end of lower end air guide device 310, and is arranged on accordingly on the chassis 100 with the front end on chassis 100.And the front middle position of lower end air guide device 310 is provided with vertical left baffle 312.That is, left baffle 312 is to give prominence to forward and form from the front center of lower end air guide device 310, thereby separates about the place ahead with lower end air guide device 310.In addition, be respectively equipped with the indoor fan that the following indoor fan 420 that will narrate can be installed on the left side of lower end air guide device 310 and the right side hole 314 is set.Indoor fan is provided with big or small corresponding that the size in hole 314 should be with indoor fan 420, and the outstanding forward part in periphery.Then be provided with on the upper end air guide device 350 and can will flow to the exhaust passage 352 that air that indoor fan 420 then discharges causes indoor exhaust mouth 220 on the front panel 200.That is, exhaust passage 352 is to form from the outstanding forward part in the rear end of upper end air guide device 350, and corresponding with the indoor exhaust mouth 220 on the front panel 200.Be provided with the filter mounting structure 360 that projects upwards above the upper end air guide device 350.Can install to purify from the upside of filter mounting structure 360 and then once more it is discharged to indoor high-performance filter 370 from indoor inhaled air.In addition, the right side of upper end air guide device 350 also is provided with control box 380.The inside of control box 380 is provided with the control elements such as circuit board of the not shown air-conditioner controlled running.Be provided with orifice plate 410 between indoor heat converter 400 and the air guide device 300.The main effect of orifice plate 410 is guiding air after indoor heat converter 400 carries out heat exchange.As shown in Figure 7, described orifice plate 410 comprises; Mainboard 412 with approximate rectangular structure; Tilt to extend and the inclined plane 413 of formation with certain angle from the upper end of mainboard 412; 413 front end extends and the top panel 414 of formation with certain angle from the inclined plane; With the outstanding forward lateral bolster fagging 416 that forms of two side ends at mainboard 412.That is, top panel 414 is perpendicular with mainboard 412, and also is provided with inclined plane 413 between top panel 414 and the mainboard 412, can make the air of forwards discharging from following side inflow flow more smooth and easy like this.Simultaneously, be provided with about on the mainboard 412 of orifice plate 410 hole 314 corresponding throttle orifice 412 ｀ can be set with the indoor fan on the lower end air guide device 310.That is, be arranged on the place ahead of indoor fan 420 with corresponding circular orifice 412 ｀ of the shape of indoor fan 420 with the quantity identical with indoor fan 420, it can introduce the rear with the air after indoor heat converter 400 heat exchange.Top panel 414 has constituted the bottom surface of exhaust passage 352, and which is provided with ribs 418.The main effect of ribs 418 is the intensity that improves top panel 414.Therefore its width of plate 414 upper edges is provided with a plurality of ribs 418 at a distance of a determining deviation in the above.The inside of air guide device 300 is provided with and can be the mobile indoor fan 420 that power is provided of air.Indoor fan about 420 respectively is provided with one.That is, two indoor fans 420 lay respectively at the indoor fan that the left and right sides forms on the air guide device 310 of lower end and are provided with in the hole 314.In addition, the side of air guide device 300 and orifice plate 410 also is provided with not shown air-vent.Extraneous air can optionally flow into and takes a breath to indoor by this air-vent.For this reason, be provided with air door in the side of air guide device 300, this air door can rotate under the effect of independent drive motors, thereby opens and closes air-vent.Simultaneously, flow into by air-vent, also be provided with the scavenge duct of not shown bootable outdoor air sometimes for making extraneous air.That is, can unshowned in the drawings connection air guide device 300 upper ends and the following guard shield that will narrate 500 between the support arm below be provided with and the air of rear side can be caused the place ahead and make it flow into the scavenge duct of air-vent.The rear end of indoor fan 420 is provided with fan electromotor 450.Central shaft 452 front ends of fan electromotor 450 are inserted in the centre of indoor fan 420, the center of the outdoor fan 460 that will narrate below its rear end then is inserted in.Therefore, fan electromotor 450 can be simultaneously provides rotary power for indoor fan 420 and outdoor fan 460.That is, fan electromotor 450 can be set directly at the back side of air guide device 300 or support with support, and its two ends are equipped with rotating shaft, and one of them rotating shaft is used to be provided with indoor fan 420, and another rotating shaft then is used to be provided with outdoor fan 460.Air guide device 300 backs are provided with the guard shield 500 that bootable outdoor air flows with it at a distance of certain distance.Be respectively equipped with on the left and right sides of guard shield 500 hole 314 corresponding through holes 502 can be set with the indoor fan on the air guide device 300.And the upper end of guard shield 500 is provided with not shown bootable priming device from the condensed water of the fan collar 422 on the following outdoor fan 460.The inboard of through hole 502 is provided with the outdoor fan 460 that can make the outdoor air forced flow and carry out heat exchange.Has the fan collar 422 that can connect blade end on the outdoor fan 460.This fan collar 422 can make gathering condensed water thereunder be sprayed on the outdoor heat converter 550 that is arranged at outdoor fan 460 rears, can reduce the temperature of outdoor heat converter 550 like this when carrying out refrigerating operation, and can improve cooling effectiveness.Be provided with outdoor heat converter 550 above being positioned at the chassis 100 of guard shield 500 rear sides.Outdoor heat converter 550 can make its inner working fluid and carry out heat exchange from outdoor inhaled air, and can be discharged to indoor heat outdoor when air-conditioner carries out refrigerating operation.Simultaneously, also be provided with compressor 560 in the heat-exchange system on the chassis 100 of outside.Compressor 560 links to each other with indoor heat converter 400 and outdoor heat converter 550 respectively, and it is arranged between air guide device 300 and the guard shield 500, specifically is arranged between the central shaft of the central shaft of left fan motor 450 and right side fan electromotor 450.At this moment, compressor 560 will be positioned on the center of outside.The rear end of outdoor heat converter 550 is provided with the rear board 600 that can constitute the back grid.Rear board 600 is provided with a plurality of grid exhaust outlets 610 that can discharge inner air.Casing 700 constitutes air flow passage in the inside of air-conditioner simultaneously at the above-mentioned element of protection.About formed across the first half of casing 700 keeper 710 be set.Guiding piece 710 is set is that end face at casing 700 is absorbed in certain depth downwards and the structure that forms, it can make air-conditioner be installed in more easily on the window of building, also is provided with not shown curtain installation component sometimes above it.Be provided with a plurality of sides suction hole 720 that can suck air from the side in the rear end of casing 700 two sides, and be provided with a plurality of end face suction holes 730 that can suck air equally from end face in the both side ends of end face latter half.Simultaneously, at the front end of the top surface of casing 700, promptly be provided with filter grid 740 at the front end that keeper 710 is set.On the corresponding position of end face of the high-performance filter 370 of air guide device 350 end faces, its bootable air from high-performance filter 370 was discharged direction, and should be arranged to dismountable structure on filter grid 740 was arranged on and is installed on.And the side of casing 700 also is provided with two handles 750 of being convenient to mobile and the device that installs an air-conditioner.In addition, as shown in Figure 3, the inside of exhaust passage 352 also is provided with the passage guide plate 354 that bootable air is discharged.Passage guide plate 354 can adopt the rectangular flat structure, and it is bootable to go out the air of being forced to deliver to air guide device 350 inside, upper end by indoor fan 420.Promptly, under the effect of indoor fan 420, the air that enters air guide device 350 inside, upper end of its top can be discharged from the indoor exhaust mouth 220 that is positioned at 352 the place aheads, exhaust passage according to user's selection, the high-performance filter 370 that perhaps flows into 352 tops, exhaust passage is then upwards discharged, and the discharge directions of this moment is guided by passage guide plate 354.The front end of passage guide plate 354 is hinged on the lower front end of high-performance filter 370, and its side then is provided with the stepper motor 356 that can drive passage guide plate 354.When stepper motor 356 rotated according to user's selection, the rear end of passage guide plate 354 can move up and down, and came optionally to open or close exhaust passage 352 thus.That is, when being the level of state when rising on the rear end of passage guide plate 354, it can close the bottom surface of filter mounting structure 360, so that force the air sent the place ahead of 352 to be discharged along the exhaust passage by indoor fan 420.On the contrary, if stepper motor 356 reverse rotations, the rear end of passage guide plate 354 will drop to the bottom surface of exhaust passage 352, can close whole exhaust passage 352 thus, at this moment, the air of being forced to send by indoor fan 420 is then upwards discharged through high-performance filter 370.To carry out refrigerating operation with air-conditioner below is that example describes.After air-conditioner started, left and right sides fan electromotor 450 was started working, so that the indoor fan 420 of left and right sides and outdoor fan 460 rotate respectively.Then, compressor 560 starts, so that working fluid circulates in heat exchange circulation system.Under the effect of the indoor fan 420 that is arranged at left and right sides, the air of the interior space will enter the inside of air-conditioner and pass through indoor heat converter 400 by front suction gas port 210 and side air entry 215.Make the air of temperature reduction be inhaled into the place ahead of indoor fan 420 through heat exchange with indoor heat converter 400, flow into by paired throttle orifice 412 ｀ that form on the orifice plate 410 then.The air that flow on the indoor fan 420 will be discharged along its circumferencial direction along with the rotation of indoor fan 420.That is, indoor fan 420 is to produce rotation under the drive of fan electromotor 450, thereby the air that flow into its place ahead along the circumferential direction can be discharged.As mentioned above, the air of discharging from indoor fan 420 circumferencial directions can be flowing into the inside that is arranged at the upper end air guide device 350 above it under the guiding of the side of lower end air guide device 310 and left baffle 312, then by discharging forward to the exhaust passage 352 of open front.That is, under the effect of lower end air guide device 310, the air above flowing into is discharged forward after changing direction, is expelled to the interior space through 352 backs, exhaust passage by the indoor exhaust mouth 220 on the front panel 200.Simultaneously, in order to purify air through indoor heat converter 400 coolings, driving lower channel guide plate 354 at stepper motor 356 can close exhaust passage 352, at this moment, carrying out the air of heat exchange can upwards discharge from its circumferencial direction under the effect of indoor fan 420 through indoor heat converter 400, this moment is owing to the air of being discharged can't be discharged from indoor exhaust mouth 220, so it will output to the interior space through filter grid 740 then through high-performance filter 370.Describing in detail with reference to Fig. 9 and Figure 10 below utilizes passage guide plate 354 to discharge the process of air.When needs are discharged air forward by exhaust passage 352, under the effect of stepper motor 356, the rear end of passage guide plate 354 will move up, and Open from This Side the place ahead of exhaust passage 352 has closed the bottom surface of filter mounting structure 360 simultaneously.At this moment, as shown in Figure 9, the air of being forced to send by indoor fan 420 can't flow into the inside of high-performance filter 370, and can only discharge forward by indoor exhaust mouth 220.At this moment, as shown in Figure 7, owing to be provided with inclined plane 413 between the top panel 414 of the orifice plate 410 of formation 352 bottom surfaces, exhaust passage and the mainboard 412, the air above therefore flowing into from indoor fan 420 can turn to forward easily.Certainly, at this moment exhaust valve 230 will move down, thus exhaust outlet 220 in the opening chamber.If want to purify the air that is discharged to the interior space, under the effect of stepper motor 356, the rear end of passage guide plate 354 will move down, at this moment, exhaust passage 352 will be closed, as shown in figure 10, indoor fan 420 force the air sent with inflow filter be provided with structure 360 below.The air that structure 360 inside are set from the below inflow filter is being cleaned through the process of high-performance filter 370, upwards discharges by filter grid 740 then.Certainly, this moment, air can't be discharged forward by exhaust passage 352, so exhaust valve 230 should move up to close indoor exhaust mouth 220.When upwards the air of discharging is through high-performance filter 370, the foreign matter that is mingled with in it will be removed, and it is indoor therefore to have only clean air just can flow into.This part air is not only through supercooling but also through purifying, thereby can make indoor environment more comfortable.In addition, in the outside, under the driving of outdoor fan 460, outdoor air will be inhaled into the inside of air-conditioner.That is, when outdoor fan 460 rotations, extraneous air can flow into the inside of air-conditioner by side suction hole 720 on the casing 700 and end face suction hole 730.The air that flow into air-conditioner inside will be inhaled into outdoor fan 460 under the guiding of guard shield 500, and carrying out heat exchange through in the process of outdoor heat converter 550 with working fluid by the air that outdoor fan 460 is discharged backward, discharge indoor heat to the outside thus.Thus, be drawn into the lower air of the relative temperature of outside and when reducing compressor 560 temperature, can be moved to outdoor heat converter 550, carry out being expelled to after the heat exchange outdoor with working fluid in the outdoor heat converter 550 in the effect of outdoor fan 460.The course of work that needs are carried out taking a breath in the space of air conditioning is described below below: when the setting according to the user is opened the air-vent that is arranged on air guide device 300 sides, indoor exhaust mouth 220 will be deflated door 230 and close.Thus, by front suction gas port 210 and side air entry 215 inhaled airs elder generation process indoor heat converter 400, flow into the outside by not shown air-vent then, discharge by the grid exhaust outlet on side suction hole 720 or the rear board 600 610 at last.In the above-described embodiments, throttle orifice 412 ｀ on indoor fan 420 and the orifice plate 410 are provided with a pair of respectively, can also be provided with more than three certainly.

Claims (5)

1, a kind of package AC plant is characterized in that: described package AC plant comprises: the chassis (100) that constitutes the bottom surface; Compressor in the heat-exchange system (560); The heat exchanger (400,550) that can make inner working fluid and air carry out heat exchange; Bootable air flow air guiding (300); A plurality of indoor fans (420) and outdoor fan (460) that air is flowed; Which is provided with the orifice plate (410) of a plurality of throttle orifices (412`) as air flow passage; Be arranged at the front end on chassis (100) and can constitute the front panel (200) of front end face; With a certain side that is fixed on chassis (100) and can constitute the casing (700) of end face and two sides.

2, package AC plant according to claim 1 is characterized in that: described orifice plate (410) comprising: the mainboard (412) that is provided with a plurality of throttle orifices (412`); Tilt to extend and the inclined plane (413) of formation by certain angle from the upper end of mainboard (412); With the front end of (413) extends by certain angle and the top panel (414) that forms from the inclined plane.

3, package AC plant according to claim 2 is characterized in that: described top panel (414) is provided with the ribs (418) that can strengthen intensity.

4, package AC plant according to claim 1 is characterized in that: it is corresponding with the quantity of indoor fan (420) that the throttle orifice (412`) on the described orifice plate (410) is provided with quantity.

5, package AC plant according to claim 4 is characterized in that: described throttle orifice (412`) and indoor fan (412`) are provided with a pair of respectively.

Images