CN2416419Y

CN2416419Y - Top air conditioner

Info

Publication number: CN2416419Y
Application number: CN 00203352
Authority: CN
Inventors: 田中俊行
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2000-02-28
Filing date: 2000-02-28
Publication date: 2001-01-24
Anticipated expiration: 2010-02-28

Abstract

The utility model relates to a top air conditioner. A reinforcing rib groove 32 for supporting a motor 17 to drive a turbo fan 18 is arranged on an upper panel 16 of a main machine body 10. A rectifying plate 40 of sound-absorbing materials 41 comprising polyurethane foam is assembled on the inner surface 31 of the upper panel 16. An air path 55 is arranged on the smooth lower surface of the upper panel 16. Noises generated from motor operation, etc. can be absorbed by the sound-absorbing materials 41. Thereby, the noises can be reduced.

Description

The roof-mounted air-condition machine

The utility model is relevant for the roof-mounted air-condition machine.

The roof-mounted air-condition machine is a kind of quite practical aircondition.This air conditioner is made of main body and decoration panel usually.Main body by comprise the peripheral pack case of quadrangle case shape and be configured in motor, fan, heat exchanger and prevent that the devices such as drain pan under the water droplet from forming.This main body is installed in the ceiling ceiling.Decoration panel is made up of air suction inlet and air blow-off outlet, from the indoor installation of main body below.

The inside of main body is provided with wind path, disposes the pressure fan of being made up of fan, motor etc. therebetween.From the air suction inlet wind path of lower surface central portion air is upwards sucked, change the wind path of the flow direction of air until the shape setting of turning back of the air blow-off outlet of lower surface periphery by fan again, the motor of drive fan work is fixed on the top panel of main body external packing shell simultaneously.

But motor the time can produce the electromagnetism sound in work, and the electromagnetism sound produces powerful noise with top panel resonance, and the jog of air of being inhaled by fan and external packing shell inside collides and also can produce noise.Because the below of main body promptly is indoor, and be communicated with by air blow-off outlet, air suction inlet etc. between indoor and the main body, so the sound of main body inside is easily to indoor leakage.

For solving the problems referred to above of prior art, the purpose of this utility model provides a kind of roof-mounted air-condition machine that can reduce noise.

For achieving the above object, roof-mounted air-condition machine of the present utility model, its main body is arranged in the ceiling, is provided with sound-absorbing material in the top panel of its external packing shell, and the lower surface zoning of described sound-absorbing material goes out the part of wind path.

Driving is installed on the plate in the above air is sucked the motor of the fan of wind path, in its vicinity because dispose sound-absorbing material, so can absorb the electromagnetism sound that produces by motor.And equally also can absorb the noise that air-flow sends by wind path the time at the sound-absorbing material in the place of closing on wind path, therefore, the utility model is a kind of noise elimination aircondition.

On the plate, the very large sound-absorbing material of area is installed in the above, can reduces noise pollution greatly really for reducing noise.

Plate is provided with the rib groove in the above, can make the sound-absorbing material lower surface become smooth.The setting that is the rib groove makes top panel improve rigidity greatly, can prevent and the resonance of motor, that is to say and can further reduce the noise that is produced by the electromagnetism sound.On the other hand, the concavo-convex air turbulence that causes of rib groove, and because the lower surface of sound-absorbing material is designed to smooth shape, flowing of air will become in order mild like this, so just can reduce the noise that causes because of air turbulence.

The sheet material of described sound-absorbing material for being made by foamed plastic, a support plate is supported described sheet material, and sound-absorbing material is installed in the above.The sheet material made from foamed plastic is made into sound-absorbing material easily.Its support plate can prevent the breakage of sound-absorbing material simultaneously, even if soft sound-absorbing material also can keep the smooth of sound-absorbing material bottom during installation.

As this design, in the main body of roof-mounted air-condition Unit Installation in ceiling, be provided with wind path and fan, the end face of fan is approaching and parallel with the inboard of external packing shell top panel, simultaneously, the top panel of pack case is provided with the rib groove outside, be provided with the cowling panel of bottom flat at rib groove lower surface, the lower surface zoning of cowling panel goes out the part of wind path.

Adopt said structure, the rib groove makes top panel improve rigidity greatly, can prevent and the resonance of motor, that is to say and can reduce the noise that is produced by the electromagnetism sound.On the other hand, the concavo-convex air turbulence that causes of rib groove, and cowling panel makes to flow from the air air of fan and becomes in order mild, so just can reduce the noise that causes because of air turbulence.

Below in conjunction with accompanying drawing a preferred embodiment of the present utility model is specifically described, these accompanying drawings are:

Fig. 1 is the schematic representation of an embodiment of the present utility model, and wherein (A) is lateral plan, (B) is plan view.

Fig. 2 is the sectional elevation of an embodiment of the present utility model.

Fig. 3 is the exploded perspective view of an embodiment of the present utility model, shows the inside assembly of external packing shell, fan, motor etc.

Fig. 4 is the enlarged drawing of the major part of Fig. 2.

Fig. 1 is the structure schematic diagram of the roof-mounted air-condition machine of an embodiment of the present utility model.Side schematic diagram with reference to Fig. 1-(A) is provided with four-sided openings 2 on ceiling 1.Air conditioner main body 10 enters into ceiling inboard 4 by indoor 3 by opening 2.Begin main body is lifted in ceiling inboard 4 from beam 5 sagging derrick rigs 6 then in ceiling inboard 4.The operator 3 carries out operation in the indoor.

After finishing main body 10 lifting, again main body 10 lower surfaces 11 on decoration panel 50 is installed,

Adjust the setting height(from bottom) of the hoisting height and the decoration panel 50 of main body 10 then.

Shown in Fig. 1-(B), the profile of main body 10 is seen from Plane Angle and roughly is octagon.Specifically, main body 10 is slightly little quadrangle from Plane Angle from 2 ones of openings, and its four bights are removed the back and form corner side 12, so main body 10 is seen by Plane Angle and is octagon.Be combined in the lifting metal parts 14 of derrick rig 6 when on each corner side 12, lifting being installed.

Fig. 2 is the sectional elevation of an example of the utility model.

Lower surface describes with reference to Fig. 2.Constitute main body 10 profile be external packing shell 15.The below of external packing shell 15 is open quadrangle case shape, is made by metallic plate.Dispose in the external packing shell 15 motor 17 that is fixed on external packing shell top panel 16 central authorities, by motor 17 drive the turbofan 18 of rotation, funnel 19 that the guiding air flows into turbofan 18, near the heat exchanger 20 around the turbofan 18 and the drain pan 30 under the water droplet that prevents to produce from heat exchanger 20.

Decoration panel 50 can be formed from a resin, and its central portion has the suction inlet 51 that can suck air in a large number.Dispose the air cleaner 53 of catching dust in the air above the air suction inlet 51.Simultaneously, the periphery of decoration panel 50 along the profile of external packing shell 15, forms air blow-off outlet 52 substantially.

Pack case 15 inside are provided with the wind path 55 that is communicated with air blow-off outlet 52 and air suction inlet 51 outside.The first area, air-flow that wind path 55 flows up into air by the turbofan 18 of the central portion in the pack case outward 15 the 3rd regional composition that the second area along almost parallel direction inflow heat exchanger 20 and external packing shell 15 ambient airs flow into down by heat exchanger 20 from turbofan 18.

Drive turbofan 18 rotations by motor 17, air flow wind path 55, as blank arrow indication, by air suction inlet 51, air is inhaled into main body 10 and arrives heat exchanger 20.Be cooled (summer) or be heated (winter) (this flow process signal represented by the arrow that has hatching) by heat exchanger 20 air, the air blow-off outlet 52 by decoration panel 50 is blown to indoor 3 around the main body 10 again.

The inner surface of external packing shell 15 since with carry out heat-exchanged air by heat exchanger 20 and contact, so the outer surface of pack case 15 is formed dew outside,, embedded the heat-barrier material 21 of Foamex etc. inside for preventing this point.For when heat exchanger 20 dewfall, prevent to fall from the water droplet that heat exchanger 20 draws, drain pan 30 is installed.

The frame shape sidepiece that external packing shell 15 includes corner side 13 and forms main body side 13 is fixed with top panel 16 at this above the sidepiece.

Fig. 3 is the exploded perspective view of external packing shell 15, motor 17, turbofan 18 etc.Fig. 4 is the enlarged drawing of Fig. 2 major part.

The central portion of the inboard 31 of top panel 16 (being disposed at the face of the below of external packing shell 15 inboards) disposes a plurality of for example 3 pillars 33 of supporting motor 17.There is external screw thread the lower end of pillar 33, uses nut that motor 17 is fixing.Be fixed with the turbofan 18 that to carry out the one rotation on the rotating shaft 44 of motor 17.The a plurality of wing plates 39 that are circle-shaped arrangement between first and

second end plate

37,38 of turbofan 18 by in opposite directions a pair of ring-type connect to form.The rotating shaft 44 of motor 17 is installed at the center of first end plate 37.The end face 36 and the rotation 35 of first end plate 37 intersect vertically, and be approaching and parallel with inner surface 31 with the inner surface 31 of top panel 16.Also available Sirocco fan (multiple-blade ring-type fan) substitutes turbofan 18.

Plate 16 is provided with a plurality of rib grooves 32 in the above, and thereunder, lower surface portion 43 disposes smooth cowling panel 40 along inner surface 31.Cowling panel 40 is the circulus of surrounding motor 17 in the inside that heat exchanger 20 is surrounded.

Rib groove 32 is radial to extending all around from the central portion of top panel 16, forms concavo-convex in the above on the inner surface 31 of plate 16.Rib groove 32 makes top panel 16 improve rigidity greatly, produces resonance so can prevent top panel 16 and motor 17, thereby reduces the noise that consequent electromagnetism sound causes.

On the other hand, the concavo-convex air turbulence that causes of rib groove 32, and because the lower surface 43 of cowling panel 40 is designed to smooth shape, flowing of air will become in order mild like this, so just can reduce the noise that causes because of air turbulence.

Cowling panel 40 is by sound-absorbing material 41 and support the metal system support plate 42 of this sound-absorbing material 41 to form.Support plate 42 almost is same shape with sound-absorbing material 41, two overlapping single face contacts.Support plate 42 is the upper strata, and sound-absorbing material 41 is a lower floor.The sheet material that sound-absorbing material 41 is made for foamed plastics such as soft polyurethanes is screwed on the inner surface 31 that is installed on top panel 16 by support plate 42.

The lower surface 43 of cowling panel 40 forms according to the surface of sound-absorbing material 41, marks the part of wind path 55 with respect to end face extension area around turbofan 18 of turbofan 18.The top layer that lower surface 43 directly adopts soft polyurethane foam processing and forming to become, so smooth planar.

Sound-absorbing material 41 is owing to be arranged on the inner surface 31 of top panel 16, and near motor 17, so can absorb the electromagnetism sound that produces by motor 17.Advantageously sound-absorbing material 41 is close in wind path 55, so the noise that produces also can absorb air communication and cross wind path 55 time.So become a kind of noise elimination aircondition.

On the plate 16, the very large sound-absorbing material 41 of area is installed in wind path 55 in the above, therefore can reduces noise pollution greatly really for reducing noise.

In addition, sound-absorbing material 41 is made by foamed plastic, thus handling ease, and also in light weight, be well suited for being used for the roof-mounted air-condition device.Simultaneously, support plate 42 can prevent the breakage of sound-absorbing material 41, so even the quality of sound-absorbing material 41 is soft again, also can not make its weak or surperficial wavy wrinkle, consequently the lower surface 43 of sound-absorbing material 41 can keep smooth when mounted.

On support plate 42, be formed with the internal thread hole 46 of combination section 45, fixed heater (figure shows) usefulness of hook shape of the guide line of fixing motor 17.In the combination section 45 and internal thread hole 46 around do not have a sound-absorbing material 41.When connecting support plate 42 and sound-absorbing material 41, except that with the adhesive, also can adopt the part of support plate 42 is turned back, sandwich the fixing method of periphery of sound-absorbing material 41.

Adopt the technical solution of the utility model, can reduce the noise of aircondition, and sound-absorbing material, cowling panel be installed on the top panel of external packing shell, therefore can not make complex structureization.

Claims

1. roof-mounted air-condition machine, it comprises: main body, described main body is made up of the wind path that is communicated with air suction inlet and air blow-off outlet that disposes in the external packing shell of band top panel, the external packing shell; The fan that in described wind path, ventilates; The motor of drive fan running, described motor is the top panel support by the external packing shell; It is characterized in that be provided with sound-absorbing material in the top panel of described external packing shell, the lower surface zoning of described sound-absorbing material goes out the part of wind path.

2. roof-mounted air-condition machine as claimed in claim 1 is characterized in that, is provided with the rib groove on described top panel, so that the lower surface of sound-absorbing material becomes smooth.

3. roof-mounted air-condition machine as claimed in claim 2 is characterized in that, described sound-absorbing material is the sheet material that foamed plastic is made, and support plate is supported described sheet material, and sound-absorbing material is installed in the above.

4. roof-mounted air-condition machine, it comprises: main body, described main body is made up of the wind path that is communicated with air suction inlet and air blow-off outlet that disposes in the external packing shell of band top panel, the external packing shell; The fan that in described wind path, ventilates; The motor of drive fan running, described motor is the top panel support by the external packing shell; It is characterized in that the approaching and configuration abreast of the end face that described top panel is vertical with the rotation of fan; Be formed with the rib groove on the described top panel, dispose smooth cowling panel, mark the part of wind path at the cowling panel lower surface with respect to the end face of fan in the fan peripheral region at its lower surface.