CN101498501A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN101498501A
CN101498501A CNA2009100037518A CN200910003751A CN101498501A CN 101498501 A CN101498501 A CN 101498501A CN A2009100037518 A CNA2009100037518 A CN A2009100037518A CN 200910003751 A CN200910003751 A CN 200910003751A CN 101498501 A CN101498501 A CN 101498501A
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CN
China
Prior art keywords
guard shield
air
conditioning
guiding elements
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2009100037518A
Other languages
Chinese (zh)
Inventor
金贞勋
金珏中
尹容湘
文栋洙
吴时荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN101498501A publication Critical patent/CN101498501A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/54Fluid-guiding means, e.g. diffusers
    • F04D29/56Fluid-guiding means, e.g. diffusers adjustable
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/40Vibration or noise prevention at outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46Component arrangements in separate outdoor units
    • F24F1/48Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/50Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction

Abstract

An air conditioner is provided. A heat exchange unit of the air conditioner may include a blower fan that generates air flow within a housing, and a first shroud that guides the air flow generated by the blower fan to an outside of the cabinet. A second shroud may be coupled to an upstream end of the first shroud. An outer peripheral surface of a transverse section of the second shroud may be curved so as to stabilize air flow generated by the blower fan.

Description

Air-conditioning
Technical field
The present invention relates to a kind of air-conditioning, relate in particular to a kind of air-conditioning with guard shield (shroud) of vibration of making and noise level reduction.
Background technology
Air-conditioning be used in the holding chamber with fresh air so that predetermined space is suitable for the conditioner of people's activity.Air-conditioning is with heat absorption in the predetermined space or release, so that the humidity in described space and temperature remain on a constant level.In order to reach this function, this air-conditioning can comprise off-premises station, and in the operation of air conditioner process, off-premises station has absorbed air-conditioning from described space hot type is put into the external world or absorbs hot from the external world.
Carry out effective heat exchange between the off-premises station and the external world in order to make, air in the off-premises station and outdoor air carry out heat exchange, so that keep the predetermined temperature difference between heat exchanger in off-premises station and the air in the off-premises station.For this reason, the air in the off-premises station can be discharged to the external world and circulate.This operation can realize by the blowing fan (blower fan) that is arranged on the off-premises station.
The rotation of blowing fan produces air stream.This air stream is directed to the external world by guard shield.When air stream is guided by guard shield,, the air conductance produces vibration or noise because causing guard shield.This vibration or noise will become greatly, and be especially at the rear portion of fan blade, stronger at this air stream.The rear portion of guard shield is positioned on the rear portion of blade, is difficult to eliminate the vibration or the noise of guard shield thus, and is difficult to effectively air be guided to the external world.
The pressure reduction that is produced when blowing fan rotates impels air to flow outside off-premises station.Extraneous air enters into off-premises station, to replace the air that (replace) discharged, produces air circulation thus in off-premises station and between outside the off-premises station.In air circulation process, in off-premises station, carry out effective heat exchange.With when producing air stream, air is subjected to the influence of the various members in the off-premises station, so that noise and vibration increase in the blowing fan operation.And the air of being discharged can be changed into turbulent flow, produces eddy current to be used in the energy of discharging air, and described eddy current is discharged irrelevantly with carrying out air, perhaps causes the interior circulation that has reduced energy efficiency.
Summary of the invention
The object of the present invention is to provide a kind of air-conditioning, it can reduce the noise of the blade of the blowing fan that the air conductance causes.
Another object of the present invention is to provide a kind of air-conditioning, it can reduce vibration, noise and improve energy efficiency.
For achieving the above object, the invention provides a kind of air-conditioning, comprising: heat exchange unit, it is configured to be connected in inner space to be heated or cooling.Described heat exchange unit comprises: housing; Fan, its generation pass the air stream of described housing; First guard shield, its described air stream that described fan is produced guides the outside to described housing; And second guard shield, it is connected the downstream of described first guard shield, and wherein, the outer wall of described second guard shield is approximate vertical straight and the end is crooked, so that the described air stream that described fan produces is stable.
The present invention also provides a kind of air-conditioning, comprising: first module, and it is arranged to the air of weather control is offered predetermined space; And Unit second, it is separated by with described first module but is connected, and wherein, described Unit second is carried out with the outer air of described predetermined space and is carried out heat exchange operation.Described Unit second comprises: housing; At least one heat exchanger, it is arranged in the described housing; Fan, it in described housing and pass described at least one heat exchanger, and is discharged with heat-exchanged air draw outside air from described housing; And multistage guard shield, it is connected in described housing, wherein, described guard shield is around described fan, so that described heat-exchanged air is directed to outside the described housing, it is crooked that the interior profile of wherein said multistage guard shield is, with corresponding with the air flow configuration of described fan generation.
Can comprise at this concrete air-conditioning of implementing also broad sense explanation: blowing fan, it produces air stream; First guard shield, it will be guided outward by the air flow that described blowing fan forms; And second guard shield, it is arranged on the back of described first guard shield, and the outer peripheral face of the cross section of second guard shield forms bending, so that the air stream that produces later at described blowing fan is stable.
Described second guard shield can make air stream stable, and this can reduce because the air at the rear portion of blade flows caused guard shield vibration.Simultaneously, this can solve the caused noise problem of vibration of described guard shield.
Can guarantee to guide swimmingly the air stream of discharging at this concrete air-conditioning of implementing also broad sense explanation, to improve energy efficiency with the rotation of blowing fan.
This concrete air-conditioning of implementing also broad sense explanation can be strengthened the intensity of described guard shield in the weight that does not increase described guard shield, to improve the life-span of air-conditioner outdoor unit.
This concrete air-conditioning of implementing also broad sense explanation can make the air of blowing fan discharge and the amplitude of resonance between the guard shield and guard shield self vibration minimize, and vibrates and noise to lower.
Description of drawings
To describe a plurality of embodiments in detail with reference to following accompanying drawing, identical in the accompanying drawings Reference numeral will be represented identical parts, and in the accompanying drawings:
Fig. 1 is the stereogram according to the off-premises station that comprises blowing fan components of the embodiment that illustrates in this broad sense;
Fig. 2 is the cutaway view along II-II line shown in Figure 1;
Fig. 3 is the schematic diagram of the air stream of off-premises station shown in Figure 1;
Fig. 4 is the stereogram of the exemplary guard shield of off-premises station shown in Figure 1;
Fig. 5 is the cutaway view along V-V line shown in Figure 4;
Fig. 6 is the stereogram of another exemplary guard shield of off-premises station shown in Figure 1;
Fig. 7 is the cutaway view along VII-VII line shown in Figure 6;
Fig. 8 is the stereogram of another exemplary guard shield of off-premises station shown in Figure 1;
Fig. 9 and Figure 10 show other exemplary guard shield of off-premises station shown in Figure 1; And
Figure 11 is the curve map of the noise level of generation under the blowing fan per unit revolution, and experiment value shows the effect of the vibration that reduces air-conditioner outdoor unit simultaneously, and described off-premises station comprises guard shield shown in Figure 9.
The specific embodiment
Front side at blowing fan can be provided with guard shield, with the pressure reduction that rotation was produced of the described blowing fan of guiding utilization swimmingly and the air of discharging.
Solving on the problems such as vibration, noise, efficient, this guard shield can have different significant degrees, because the problem of above-mentioned discussion depends on the shape of described guard shield.Especially, if shaped design is improper, then can produce resonance between the guard shield and the air of being discharged, this can increase vibration and noise and reduce energy efficiency.Therefore, effectively the guard shield of design becomes a key factor that improves the off-premises station capacity.
Fig. 1 shows the stereogram of the off-premises station 100 that comprises blowing fan components 180, and Fig. 2 is the cutaway view along II-II line shown in Figure 1, and Fig. 3 is the schematic diagram of the air stream in the off-premises station 100 shown in Figure 1.
See figures.1.and.2, off-premises station 100 comprises housing 120, a plurality of air intake (not shown), heat exchanger 161 and 162, compressor 171, blowing fan components 180 and motor 150.Described air intake is arranged on the housing 120, so that outdoor air can enter in the off-premises station 100. Heat exchanger 161 and 162 is realized the outdoor air that enters by described air intake and the heat exchange between the internal refrigeration storage agent.Compressor 171 will offer heat exchanger 161 and 162 with the internal refrigeration storage agent that outdoor air carries out heat exchange.Blowing fan components 180 causes air stream, and by described air stream, the air of having finished heat exchange at heat exchanger 161 and 162 places is forced to be discharged to the external world.Motor 150 sends revolving force to the blowing fan 140 that comprises in the blowing fan components 180.
Housing 120 comprises: header board 122, and it is as the front surface of housing 120; Bottom 123 is positioned at the bottom side of header board 122, to support various devices; Enclosure body 124 is positioned at bottom 123 upside, and is connected with header board 122; And top board 121, be positioned at the top side of enclosure body 124, and be connected with header board 122.Enclosure body 124 comprises: the first air intake (not shown), and extraneous air enters or discharges by it; And first grid 170, the unwanted material that air comprised that is used for entering or discharging by described first air intake is removed.In addition, enclosure body 124 comprises the second air intake (not shown), and extraneous air enters or discharges by it; And the second grid (not shown), the unwanted material that air comprised that is used for entering or discharging by described second air intake is removed
Blowing fan components 180 comprises: blowing fan 140, and it receives the revolving force from motor 150, so that internal air stream is to the outside; And guard shield 130, will guide to the external world by the air stream that blowing fan 140 causes.
With reference to Fig. 3, when the indoor set (not shown) of compound air conditioner drives, the corresponding operation of off-premises station 100 beginnings.When off-premises station 100 operations, signal is imposed on motor 150, with actuation motor 150.In case motor 150 receives described signal, then motor 150 rotates blowing fans 140, and thus inner air is discharged to the external world.When described air was discharged from, extraneous air entered in the housing 120 by described first air intake and described second air intake.The air that is entered carries out heat exchange at first heat exchanger 161 and second heat exchanger, 162 places and described internal refrigeration storage agent.Make the described internal refrigeration storage agent that is used for heat exchange become the cryogenic high pressure cold-producing medium by compressor 171.Heat-exchanged air flows in housing 120.Described flow air is discharged to the external world by the rotation of the blowing fan 140 that motor 150 rotations drive.
Motor 150 rotation at a high speed, and cause vibration and/or noise thus.Below motor 150, be provided with the motor supporting member 151 of fixed motor 150.The condensed water that produces from first heat exchanger 161 and second heat exchanger 162 is discharged from side direction via the catch tray that drips (drain pan) 163, and the catch tray 163 that drips extends on left and right directions.
Fig. 4 is the stereogram of the exemplary guard shield of off-premises station 100 shown in Figure 1, and Fig. 5 is the cutaway view of making along V-V line shown in Figure 4.
With reference to Fig. 4 and Fig. 5, guard shield 130 comprises: first guard shield 131, and it will be guided to the external world by the air stream that blowing fan 140 produces; And second guard shield 133, be arranged on the downstream of first guard shield 131, wherein the outer wall of second guard shield 133 is substantially vertical straight and have the top and bottom of the bending that is positioned at linkage unit 132 places and connecting portion 134 places, and the air rheology that is produced by blowing fan 140 must be stablized.Guard shield 130 is connected with air discharge grille 110, and air discharge grille 110 is used to prevent extraneous unexpected material contact blowing fan 140.When blowing fan 140 rotations, the air in the off-premises station 100 discharges.First guard shield 131 outwards guides the air of being discharged.When blowing fan 140 rotations, the air rheology of blade 141 back gets unstable.Described unsettled air impact guard shield 130 and enclosure body 124 cause vibration and noise thus.Because the outer wall of second guard shield 133 is vertical substantially straight and have the top and bottom of the bending that is positioned at linkage unit 132 and connecting portion 134 places, so described unsettled air becomes stable.Therefore, make described unsettled air become stable, and can reduce noise or the vibration that causes by unstable air thus by second guard shield 133.
In second guard shield 133, the outer peripheral face shape on its cross section can be various.For example, the outer peripheral face shape on the cross section can be circular, and perhaps the outer peripheral face shape on the cross section can be oval.If second guard shield 133 be shaped as ellipse or circle, then described unstable air clashes into second guard shield 133 so that air stream change over have evenly streamed.As a result, described unstable air becomes stable, thereby reduces noise and/or vibration.
Simultaneously, the decline of blade 141 or tail edge can be arranged on the incoming flow of second guard shield 133 and go out between the stream end or between the entrance and exit.Mobile rearmost end of passing the air impact blade 141 of guard shield 130 is to cause interference to described air stream.Therefore, described air stream becomes unstable at the tail edge place of blade 141.Be arranged between the front-end and back-end of second guard shield 133 by the described decline that makes blade 141, make described unsettled air rheology to stablize.That is to say, because the narrow space between second guard shield 133 and the blade 141, so second guard shield 133 is clashed in the described unstable air stream beginning that produces at the decline place of blade 141 fast.Described air stream is discharged with the air that passes blowing fan 140 that flows.Therefore, air stream is stablized, and no longer has unsettled air stream.
Guard shield 130 can form and make win guard shield 131 and second guard shield 133 integrally formed, and guard shield 130 also comprises linkage unit 132 that first guard shield 131 is connected with second guard shield 133 and the connecting portion 134 that guard shield 130 is connected with housing 120.It is crooked that linkage unit 132 can form its part that is between first guard shield 131 and second guard shield 133.The air stream that rotation by blowing fan 140 forms is discharged to the external world from second guard shield 133 via first guard shield 131.The air that becomes stable in second guard shield 133 flow in first guard shield 131, unless and this moment linkage unit 132 be crooked, otherwise described air may be unsettled.The linkage unit 132 and first guard shield 131 and second guard shield 133 form curve.Because linkage unit 132 and first guard shield 131 and second guard shield 133 are connected to form curve, so air is discharged to the external world in the mode that the air of stabilisation flows.The air stream of this stabilisation can reduce motor 150 employed energy.And the air stream of described stabilisation is easy to air movement and effectively heat-exchanged air is discharged to outside the off-premises station 100.
Fig. 6 is the stereogram of another exemplary guard shield of off-premises station 100 shown in Figure 1, and Fig. 7 is the cutaway view of making along VII-VII line shown in Figure 6.The Reference numeral identical with the Reference numeral that provides in the above-mentioned exemplary embodiment represented identical parts.Hereinafter, with the difference that stresses with above-mentioned exemplary embodiment.
With reference to Fig. 6 and Fig. 7, blowing fan components 280 comprises guiding elements 235, and it extends so that shell 120 is connected with second guard shield 233 from second guard shield 233.The connecting portion 234 that guiding elements 235 can form between the guiding elements 235 and second guard shield 233 is crooked, having carried out the air of heat exchange to blowing fan 140 guiding at heat exchanger 161 and 162 places.
The shape of guiding elements 235 can be quadrangle, to be connected with housing 120.If guiding elements 235 be shaped as quadrangle, then described tetragonal each limit can be arc, to eliminate by empty noise generated by air flow and vibration.The quadrangle form of guiding elements 235 is for being easy to be connected in the quadrangle of housing 120.Because the air stream that the rotation of blowing fan 140 produces is discharged into outside the housing 120.Air passes heat exchanger 161 and 162 and also flow to subsequently in the guiding elements 235.Air in the guiding elements 235 is directed into first guard shield 231 that is connected in second guard shield 233 by linkage unit 232.Therefore, the mobile inner air that passes guiding elements 235 can be guided to guard shield 130 effectively.
Fig. 8 is the stereogram of the another exemplary guard shield of off-premises station 100 shown in Figure 1.The Reference numeral identical with the Reference numeral that provides in the above-mentioned exemplary embodiment represented identical parts.Hereinafter, with the difference that stresses with above-mentioned exemplary embodiment.
With reference to Fig. 8, blowing fan components 380 can comprise guard shield 330, the guiding elements 335 that guard shield 330 has first guard shield 331 that connects by linkage unit 332 and second guard shield 333 and is connected in second guard shield 333 by connecting portion 334.Guard shield 330 also can comprise air storage member 336.Air storage member 336 is arranged on second guard shield, 333 places and centers on blade 141.And the air storage member 336 and second guard shield 333 are spaced apart, and the outer peripheral face shape on the cross section of air storage member 336 is identical substantially with the shape of the outer peripheral face of the cross section of second guard shield 333.Air storage member 336 is arranged to second guard shield 333 spaced apart, to form air storage portion 337 between the air storage member 336 and second guard shield 333.If blowing fan 140 rotations then produce air stream in the back of blade 314.Because described air stream is formed near the decline or tail edge place of blade 341, so that described air rheology gets is unstable, this makes guard shield 330 produce vibration and noises.
Simultaneously, because air storage member 336, make described unstable air stream be eliminated or become stable.When described unstable air flows when crossing air storage member 336, it is caught by air storage portion 337.Be trapped in the air storage portion 337 by described unstable air, make described air stream become stable from instability.Thus, can reduce or eliminate the vibration or the noise of giving birth to effectively by described unstable air miscarriage.
Fig. 9 and Figure 10 show other exemplary guard shield of off-premises station 100 shown in Figure 1.
With reference to Fig. 9, guard shield 430 comprises first guard shield 431, second guard shield 434, guiding elements 435 and stiffener 432.First guard shield 431 has outlet 431a, and it guides the air that carried out heat exchange at heat exchanger 161 and 162 places swimmingly, and owing to makes described air be discharged to outside the off-premises station 100 at the pressure reduction that is formed by blowing fan 140 between front side and the rear side.Guiding elements 435 supports first guard shield 431, and is connected to support first guard shield 431, so that guard shield 430 is fixed in the housing 120 with the inner surface of housing 120.Second guard shield 434 and is caught because the air-swirl that the air that the rotation of blowing fan 140 is discharged produces between the guiding elements 435 and first guard shield 431, to reduce the vibration of off-premises station 100.Stiffener 432 can be strengthened having reduced noise since the guiding elements 435 by supporting first guard shield 431 and guiding elements 435 and reducing the up-down vibration (shown in figure arrow f direction) of guiding elements 435.
Enter the end of guiding elements 435 along with air is popular, the amplitude of the up-down vibration f of guiding elements 435 can increase, but the described end of stiffener 432 supporting guide members 435 and first guard shield 431 thus, to reduce described vibration.And, as shown in the figure, the interval maximum between the center of the outermost edge 435d of guiding elements 435 and guard shield 430, and the vibration maximum that produces at edge 435d place thus.Thus, stiffener 432 can comprise: the first stiffener 432a, the outermost edge 435d of its supporting guide member 435 and first guard shield 431; And the second stiffener 432b, the narrower part of its supporting guide member 435.And, can be effectively because from the operating efficiency angle, form stiffener 432, so stiffener 423 can be arranged on guard shield 430 places, to support all guiding elements 435, second guard shield 434 and first guard shield 431 with guard shield 430.
Along with blowing fan 140 rotations, air is discharged via first guard shield 431, and the pressure variation of the air of being arranged is periodically, and this pressure changes the vibration (along the direction of arrow g) that causes towards first guard shield, 431 centers.This vibration g becomes the noise source and the tired source of first guard shield 431.In order to reduce this vibration, around the periphery of first guard shield 431 reinforcing ring 433 is set at first guard shield, 431 places, to strengthen first guard shield 431 and to reduce the center oriented vibration g of first guard shield 431.
As shown in figure 10, kink 436 can be set, to strengthen guiding elements 435 and to reduce the vibration f of guiding elements 435 in the end of the included guiding elements 435 of off-premises station 100.For example, kink 436 can form to the behind, but the formation direction of kink 436 specifically is not limited to this.And the 435a place can be provided with ribs 437 at the back side of guiding elements 435, so that the end of kink 436 and the back side 435a of guiding elements 435 are connected, to strengthen guiding elements 435 and to reduce described vibration.In this embodiment, because kink 436 is to forming behind, so shown ribs 437 is arranged at the back side 435a of guiding elements 435.But ribs 437 also can be arranged at the front of guiding elements 435.Simultaneously, pass the connecting hole 436a that is arranged on the kink 436, in the kink 436 at least one is connected on the medial surface of housing 120, and guard shield 430 is fixed on the housing 120 thus by the Connection Element such as bolt or pin.In order to reduce vibration, the cross section that guiding elements 435 has can be identical with the cross section of housing 120, and all surface of kink 436 all is connected on the medial surface of housing 120, so that guard shield 130 is firmly fixed in the housing 120.Simultaneously, because the shape of cross section of housing 120 is the rectangle shown in this figure, so the shape of guiding elements 435 can correspondingly be a rectangle.
Figure 11 is the noise level (according to decibel dB) that blowing fan unit's revolution produces.Especially, Figure 11 has provided guard shield shown in Figure 9 experiment value to the influence of reduction off-premises station 100 vibrations.
Curve S 1 is illustrated in the level of noise that is produced under the revolutions per minute of the blowing fan in the guard shield, and wherein said guard shield is not included in stiffener given in the exemplary embodiment 432, reinforcing ring 433, ribs 437.Curve S 2 is illustrated in the level of noise that is produced under the revolutions per minute of the blowing fan in the guard shield, and wherein said guard shield is included in stiffener 432, reinforcing ring 433, the ribs 437 that guard shield intensity is strengthened in given being used in the exemplary embodiment.As shown in figure 11, by these stiffeners, when blowing fan rotated at a relatively high speed, the noise content that is produced significantly reduced.
A kind of air-conditioning is provided, and it can reduce the noise of the blade of the blowing fan that the air conductance causes.
A kind of air-conditioning is provided, and it can reduce vibration, noise and improve energy efficiency.
Can comprise at this concrete air-conditioning of implementing also broad sense explanation: blowing fan, it produces air stream; First guard shield, it will be guided outward by the air flow that described blowing fan forms; And second guard shield, it is arranged on the back of described first guard shield, and the outer peripheral face of the cross section of second guard shield forms bending, so that the air stream that produces later at described blowing fan is stable.
Described second guard shield can make air stream stable, and this can reduce because the air at the rear portion of blade flows caused guard shield vibration.Simultaneously, this can solve the caused noise problem of vibration of described guard shield.
Can guarantee to guide swimmingly the air stream of discharging at this concrete air-conditioning of implementing also broad sense explanation, to improve energy efficiency with the rotation of blowing fan.
This concrete air-conditioning of implementing also broad sense explanation can be strengthened the intensity of described guard shield in the weight that does not increase described guard shield, to improve the life-span of air-conditioner outdoor unit.
This concrete air-conditioning of implementing also broad sense explanation can make the air of blowing fan discharge and the amplitude of resonance between the guard shield and guard shield self vibration minimize, and vibrates and noise to lower.
Related in this manual " embodiment ", " embodiment ", " illustrative embodiments " means that specific feature, structure or the characteristic relevant with this embodiment will be included at least one embodiment of the present invention.These wording that diverse location place in specification occurs needn't all refer to same embodiment.In addition, when the explanation specific feature relevant, structure or characteristic with any embodiment, what should defer to is under those skilled in the art's the visual field, to realize this feature, structure or the characteristic relevant with other embodiment of described a plurality of embodiments.
Although understand a plurality of embodiments with reference to a plurality of exemplary embodiment, it should be understood that and to fall in the spirit and scope of this disclosure book principle by many other modifications and the embodiment that those skilled in the art visualizes.In particular, in the scope of this disclosure book, accompanying drawing and the claim of enclosing, can carry out various variants and modifications in conjunction with arranging to what various parts and/or theme were arranged.For a person skilled in the art, except the remodeling and modification on parts and/or the layout, interchangeable use also is conspicuous.

Claims (17)

1. air-conditioning comprises:
Heat exchange unit, it is configured to be connected in inner space to be heated or cooling, and described heat exchange unit comprises:
Housing;
Fan, its generation pass the air stream of described housing;
First guard shield, its described air stream that described fan is produced guides the outside to described housing; And
Second guard shield, it is connected the downstream of described first guard shield, and wherein, the outer wall of described second guard shield is similar to vertically straight and the end is crooked, so that the described air stream that described fan produces is stable.
2. air-conditioning as claimed in claim 1, wherein, it is circular that the periphery of the cross section of described second guard shield is approximately.
3. air-conditioning as claimed in claim 1 also comprises:
Jockey, itself and described first guard shield and described second guard shield form as one, so that described first guard shield is connected with described second guard shield, wherein, described jockey, be crooked with near the part described first guard shield and described second guard shield zone connected to one another.
4. air-conditioning as claimed in claim 1 also comprises:
Guiding elements, it stretches out from described second guard shield, wherein said guiding elements is configured to described housing is connected with described second guard shield, wherein said guiding elements, the part in described guiding elements and described second guard shield zone connected to one another is crooked.
5. air-conditioning as claimed in claim 4 also comprises:
Stiffening device, it supports described first guard shield and described guiding elements.
6. air-conditioning as claimed in claim 5, wherein, described stiffening device also supports described second guard shield.
7. air-conditioning as claimed in claim 5 also comprises:
At least one ribs, its kink at an end place that is arranged at described guiding elements extends between the back side of described guiding elements.
8. air-conditioning as claimed in claim 1 also comprises:
Reinforcing ring, it is around the periphery of described first guard shield.
9. air-conditioning comprises:
First module, it is arranged to the air of weather control is offered predetermined space; And
Unit second, it is separated by with described first module but is connected, and wherein, the air that described Unit second is carried out and described predetermined space is outer carries out heat exchange operation, and described Unit second comprises:
Housing;
At least one heat exchanger, it is arranged in the described housing;
Fan, it in described housing and pass described at least one heat exchanger, and is discharged with heat-exchanged air draw outside air from described housing; And
Multistage guard shield, it is connected in described housing, wherein, described guard shield is around described fan, so that described heat-exchanged air is directed to outside the described housing, the interior profile of wherein said multistage guard shield is crooked, with corresponding with the air flow configuration of described fan generation.
10. air-conditioning as claimed in claim 9, wherein, described multistage guard shield comprises:
First guard shield, it has first end and second end, and first end of described first guard shield defines outlet, and heat-exchanged air is discharged in described housing by described outlet, and second end of described first guard shield is relative with first end of described first guard shield; And
Second guard shield, it has first end and second end, first end of described second guard shield is connected with second end of described first guard shield, and second end of described second guard shield is relative with first end of described second guard shield, second end of wherein said second guard shield defines inlet, and heat-exchanged air is incorporated in the described fan by described inlet.
11. air-conditioning as claimed in claim 10, wherein, described multistage guard shield also comprises:
The first crooked connecting portion, it extends between first end of second end of described first guard shield and described second guard shield, so that profile continuous bend in described multistage guard shield described.
12. air-conditioning as claimed in claim 11, wherein, the end of the described interior profile of described multistage guard shield and a plurality of blades of described fan separates, and the described interior profile curves one-tenth of described multistage guard shield is corresponding with the rotate path of the described end of described a plurality of blades, so that the air that described fan produces stream is stable.
13. air-conditioning as claimed in claim 11, wherein, described multistage guard shield also comprises:
Second connecting portion, it is arranged on the second end place of described second guard shield, and wherein said second connecting portion is connected to described multistage guard shield in the described housing.
14. air-conditioning as claimed in claim 11, wherein, described multistage guard shield also comprises:
Guiding elements, it is connected in second end of described second guard shield, and wherein said guiding elements is connected to described multistage guard shield in the described housing; And
Stiffening device, it strengthens described first guard shield and described second guard shield.
15. air-conditioning as claimed in claim 14, wherein, described stiffening device comprises:
Reinforcing ring, its periphery around described first guard shield or described second guard shield is extended.
16. air-conditioning as claimed in claim 14, wherein, described multistage guard shield comprises:
At least one stiffener, it extends between described first guard shield, described second guard shield and described guiding elements, to strengthen described first guard shield and described second guard shield; And
A plurality of ribs, it extends between the back side of the outer peripheral edges of described guiding elements and described guiding elements, to strengthen described guiding elements.
17. air-conditioning as claimed in claim 11, wherein, described multistage guard shield also comprises:
Storage member, extend downwards in the zone that its second end from described first guard shield is connected with described first connecting portion, wherein between the inner surface of described storage member and described second guard shield, be formed with the gap, the unstable air that rotation produced of wherein said fan is trapped in the described gap, so that it is stable to pass the air stream of described multistage guard shield.
CNA2009100037518A 2008-01-30 2009-02-01 Air conditioner Pending CN101498501A (en)

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KR1020080009713A KR101426047B1 (en) 2008-01-30 2008-01-30 Outdoor unit of air-conditioner
KR1020080009713 2008-01-30
KR1020080011798 2008-02-05

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CN104748258A (en) * 2013-12-26 2015-07-01 Lg电子株式会社 Blower apparatus and outdoor unit of air conditioner having the same
CN110741207A (en) * 2016-11-01 2020-01-31 Lg电子株式会社 Air conditioner
CN114673696A (en) * 2022-05-30 2022-06-28 长城汽车股份有限公司 Fan housing assembly, fan and vehicle

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JPH09310890A (en) * 1996-05-20 1997-12-02 Mitsubishi Electric Corp Outdoor unit for air conditioner
KR100459177B1 (en) 2002-03-13 2004-12-03 엘지전자 주식회사 Discharge-structure of radiating part in air-conditioner
KR100730295B1 (en) 2005-09-27 2007-06-19 주식회사 경인기계 Cooling tower
KR20070107323A (en) * 2006-05-02 2007-11-07 엘지전자 주식회사 Outdoor unit of air conditioner

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CN106377043A (en) * 2012-08-31 2017-02-08 夏普株式会社 Blower device
CN104583605B (en) * 2012-08-31 2018-11-13 夏普株式会社 Air-supply arrangement
CN106377043B (en) * 2012-08-31 2019-11-08 夏普株式会社 Air supply device
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CN110741207A (en) * 2016-11-01 2020-01-31 Lg电子株式会社 Air conditioner
US11209011B2 (en) 2016-11-01 2021-12-28 Lg Electronics Inc. Air conditioner
CN114673696A (en) * 2022-05-30 2022-06-28 长城汽车股份有限公司 Fan housing assembly, fan and vehicle

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