CN1100238C - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditioner Download PDFInfo
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- CN1100238C CN1100238C CN96105916A CN96105916A CN1100238C CN 1100238 C CN1100238 C CN 1100238C CN 96105916 A CN96105916 A CN 96105916A CN 96105916 A CN96105916 A CN 96105916A CN 1100238 C CN1100238 C CN 1100238C
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- heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/54—Inlet and outlet arranged on opposite sides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
This invention provides an outdoor unit for an air conditioner in which a heat exchanging capability can be increased by increasing the capacity of the heat exchanger and noise can be decreased by making uniform a ventilating resistance to heat-exchanged air passing through the heat exchanger. A unit main body 1 has outside air inlet ports 4 and 5 opened to a rear face part and a side face part and an outlet port 3 opened to a front face. An outdoor heat exchanger 6 and a blower 12 are arranged in the unit main body 1. The outdoor heat exchanger 6 comprises a first heat exchanger 7 bent and formed in an L-shape in plan view so as to be opposed to the respective outside air inlet ports, and arranged so as to surround the blower 12 and a second heat exchanger 8 provided in the upstream side of the heat exchanged air of the first heat exchanger 7 and between the first heat exchanger 7 and the outside air inlet port 4 in the rear face, and formed in a rectangular shape in plan view.
Description
The present invention relates to the outdoor unit of air conditioner, specially refer to improvement the outdoor heat converter structure.
Being installed in the indoor unit in the room that uses air-conditioning and being installed in the outdoor unit of building external of air conditioner is connected with distribution line or the like by refrigerant pipe.Outdoor unit should be pressed close to the wall of building as much as possible, and should not produce obstacle.
Body interior at outdoor unit disposes outdoor heat converter, pressure fan, compressor, pipe arrangement and electric part box or the like.And, should consider how for improving the capacity that heat-exchange capacity increases heat exchanger particularly to outdoor heat converter.
Its result as shown in Figure 8.Clear and 54-153055 number in the open practicality of on October 24th, 1979 bulletin, disclose a kind of outdoor unit of air conditioner, proposed side by side configuration and bent to and be L shape, the outdoor heat converter S of the essentially identical first heat exchanger a of profile, the second heat exchanger b each other substantially.
Back side portion and side surface part at the unit main body C of basket shape are provided with extraneous air suction inlet d, e, and portion is provided with outlet f in front.Above-mentioned outdoor heat converter S is the L shape on plan view, directly relative with above-mentioned each extraneous air suction inlet d, e.
At outlet f place, be provided with pressure fan h relative configuration with heat exchanger S, that have aerofoil fan, thereby shown in arrow among the figure, can suck extraneous air by each extraneous air suction inlet d, e, this extraneous air and outdoor heat converter S carry out heat exchange, discharge the air of idle call from outlet f.
Owing to have this first heat exchanger a and second a heat exchanger b, so from form, even a monomer heat exchanger, heat exchanger container also can increase twice.
Yet capacity of heat exchanger is a twice, and heat-exchange capacity might not increase to twice.That is to say that do not increase corresponding air quantity if do not increase with capacity, heat-exchange capacity can not increase, at this moment, above-mentioned pressure fan and fan g must maximize, or improve revolution, just can guarantee the heat exchange air quantity that adapts with heat-exchange capacity.
And, the air quantity of above-mentioned helicoidal pump g and wind speed, with its turning cylinder phase plane direction on the rear side place of aerofoil fan bigger, and with the perpendicular direction of turning cylinder on the side air quantity and the wind speed of aerofoil fan all less.
Therefore, when the mode by Fig. 8 increases the capacity of heat exchanger S, at the smaller side of air quantity/wind speed, guarantee to have and the corresponding air quantity of capacity increase part, above-mentioned pressure fan h and fan g also must maximize more, or further improve rotating speed.
Because the shape of this pressure fan h and fan g is bigger, so the shape of its module body C is also big, this contradicts the purpose of basket miniaturization with present hope.And when rotating speed rose, the air-supply noise also can increase.
Because these restrictions, the someone has proposed outdoor heat converter Sa as shown in Figure 9 again.Promptly the second heat exchanger b be the L shape, and the first new heat exchanger j is linearly with aforementioned the same, along the suction inlet d configuration of back side portion.(with parts identical among Fig. 8, illustrate with identical label, and omitted the explanation that repeats).
By its explanation, the first heat exchanger j parallels configuration with the linear position of the second heat exchanger b.If the air-flow with heat exchange air is a benchmark, the first heat exchanger j is positioned at the downstream side of the second heat exchanger b.
At this moment, do not increase the heat exchanger of side, and only depend on the capacity of heat exchanger that increases rear side, increase the capacity of heat exchanger.And, because the heat exchanger of side is less, thus the diameter of helicoidal pump g can be increased, thus increase air quantity.
Therefore, the size of basket be can not increase, capacity of heat exchanger and air quantity increased.
Yet, by the extraneous air suction inlet d inhaled air of back side portion, particularly the heat exchange air by the second heat exchanger b bend is guided by the U type pipe K on the side that is configured in the first heat exchanger j that is positioned at its downstream side, thereby produces turbulent flow, noise is increased, thus and it is inapplicable.
At the problems referred to above, purpose of the present invention is exactly the outdoor unit that a kind of air conditioner will be provided, and it can increase heat-exchange capacity by increasing capacity of heat exchanger, can make the flowing resistance homogenising by the air of heat exchanger simultaneously, and reduce noise.
For realizing above-mentioned purpose, the outdoor unit of air conditioner of the present invention comprises: by front face be provided with outlet, portion and side surface part are provided with the unit main body that the basket of air suction inlet constitutes respectively overleaf; Be configured in the outdoor heat converter in this unit main body; And will be directed to by the air that above-mentioned suction inlet imports above-mentioned outdoor heat converter and with undertaken being discharged to outside pressure fan by above-mentioned outlet after the heat exchange by the cold-producing medium in this outdoor heat converter; Above-mentioned outdoor heat converter comprises first linear portion relative with the suction inlet of above-mentioned back side portion and the second linear portion relative with the suction inlet of aforementioned side surface part, first heat exchanger that disposes from the mode that surrounds above-mentioned contrary wind machine by the bend between this first linear portion and the second linear portion simultaneously, and be arranged between the said external air suction inlet at aforementioned first linear portion and portion place, the aforementioned back side, second heat exchanger of shape linearly.
Above-mentioned first heat exchanger and second heat exchanger are a plurality of fin that are arranged side by side by with narrow inter fin space, with fin one tube type heat exchanger that runs through the heat-exchange tube formation that is arranged on guiding cold-producing medium in these fin, constitute the diameter of the heat-exchange tube of first heat exchanger, bigger than the diameter of the heat-exchange tube that constitutes second heat exchanger.At this moment, if constitute the heat-exchange tube of above-mentioned first heat exchanger and constitute the heat-exchange tube of second heat exchanger and the airflow direction configured in parallel of heat exchange air then better.
Above-mentioned outdoor heat converter, when the cooling operation,,, at first import aforementioned first heat exchanger and carry out heat exchange if supply with the cold-producing medium of this outdoor heat converter as condenser, import aforementioned second heat exchanger subsequently and carry out heat exchange, the refrigerant flow path of Gou Chenging is then better thus.And, in above-mentioned first heat exchanger and second heat exchanger, also can form two independently refrigerant flow paths respectively, and when refrigerating operaton, at first import the cold-producing medium of above-mentioned first heat exchanger, above-mentioned each refrigerant flow path and derive of can flowing through respectively by above-mentioned second heat exchanger.
The inter fin space of above-mentioned second heat exchanger can be set widelyer than the inter fin space of first heat exchanger, and the inter fin space of the second linear portion in above-mentioned first heat exchanger, also can set narrowlyer than the inter fin space of the above-mentioned first linear portion.
Above-mentioned outdoor heat converter, its first heat exchanger is the bending shape relative with the extraneous air suction inlet of module body back side portion and side surface part, and dispose in the mode that surrounds pressure fan, its second heat exchanger is located at the upstream side of first heat exchanger, between it and back side portion extraneous air suction inlet, and it is linearly, so can be corresponding to the increase of capacity of heat exchanger and improve heat-exchange capacity, and can make even with respect to the wind speed profile of the heat exchange air of the part of module body back side portion and side surface part, thereby can not produce turbulent flow, reduce noise.
Fig. 1 is the summary drawing in side sectional elevation of the outer assembly of air-conditioning unit room of expression one embodiment of the invention.
Fig. 2 is the side view that constitutes the part of first heat exchanger of outdoor heat converter and second heat exchanger among the same embodiment.
Fig. 3 is the side view of the part of expression first heat exchanger of another embodiment and second interchanger.
Fig. 4 is the expression side view of the part of first heat exchanger of an embodiment and second heat exchanger again.
Fig. 5 is first heat exchanger of the another embodiment of expression and the side view of second heat exchanger.
Fig. 6 is the front elevation of the part of expression first heat exchanger of another embodiment and second interchanger.
Fig. 7 is the drawing in side sectional elevation of the part of the outdoor unit of the another embodiment of expression.
Fig. 8 is the summary drawing in side sectional elevation of the air conditioner outdoor unit of the original example of expression.
Fig. 9 is the summary drawing in side sectional elevation of the air conditioner outdoor unit of original another example of expression.
Each symbol at accompanying drawing is:
4 ... (back side portion) extraneous air suction inlet, 5 ... (side surface part) extraneous air suction inlet, 3 ... outlet, 1 ... module body, 6 ... outdoor heat converter, 12 ... outdoor draft fan, 7 ... first heat exchanger, 8 ... second heat exchanger.
One embodiment of the present of invention are described with reference to the accompanying drawings.
Fig. 1 shows the outdoor unit that constitutes air conditioner.
The basket that unit main body 1 is combined into one for front face, back plate and base plate.Be provided with horn mouth 2 at its front face, form heat-exchanged air outlet 3.On unit main body 1, be provided with the suction inlet 4,5 that sucks air by the outside to inside.Suction inlet 4,5 is orthogonal and be located at back side portion, the side surface part of unit main body 1 respectively.
Outdoor heat converter 6 is configured in the unit main body 1 along suction inlet 4,5.
Above-mentioned outdoor heat converter 6 is made of first heat exchanger 7 and second heat exchanger 8.Be bent into slightly be the L shape first heat exchanger 7 as shown in Figure 1, be configured in the linearly inboard of second heat exchanger 8 of shape.Linear part (the first linear part) along first heat exchanger 7 of suction inlet 4 is set up in parallel with this second heat exchanger 8.
Each heat exchanger 7,8 can have a plurality of fin that are set up in parallel 9 that narrow gap is arranged to each other and the heat exchanger 10 of several U fonts.The part of the heat-exchange tube 10 that is protruded by the fin g of a side is bent into U-shaped 11 and is connected by not shown return bend by the heat-exchange tube 10 that the fin 9 of another side protrudes, and the heat-exchange tube 10 of topmost is connected with tube connector 10a, to form refrigerant flow path.
The fin 9 of second heat exchanger 8, and the fin 9 of first linear of first heat exchanger 7 that is set up in parallel with it part, extraneous air suction inlet 4 forwards with back side portion are relative respectively.And, with remaining fin 9 that first linear of first heat exchanger 7 partly is connected, face a side of side surface part extraneous air suction inlet 5.
That is to say that U shape part 11 and the U shape elbow part of the protrusion of the heat-exchange tube 10 in each heat exchanger 7,8 outside fin 9 all is positioned at position outside the extraneous air suction inlet 4,5, hinder so can not produce to the air that imports by each suction inlet.
Between the above-mentioned outlet 3 and first heat exchanger 7, be provided with outdoor draft fan 12.This pressure fan 12, by be bearing on the supporting station 13 that is arranged on heat exchanger 7 sides fan motor 14 be inlaid in these motor 14 turning cylinders on, the helical fan 15 relative with horn mouth 2 constitute.
And, when driving helical fan 15 with fan motor 14, shown in arrow among the figure, the extraneous air suction inlet 4,5 of extraneous air by back side portion and side surface part can be imported in the unit main body 1, it traverses unit main body 1 inside by outdoor heat converter 6, is expelled to outside the unit main body by outlet 3 again.
If the angle that the heat exchange air in unit main body 1 flows, upstream side is the position of second heat exchanger 8, and first heat exchanger 7 is positioned at its downstream side.
As shown in Figure 2, it is bigger than the diameter db of the heat exchanger 10Pb that constitutes second heat exchanger 8 to constitute the diameter da of heat-exchange tube 10Pa of first heat exchanger 7.And each heat-exchange tube 10Pa, 10Pb tube pitch are identical, and dispose side by side along the airflow direction of heat exchange air.
As shown in Figure 1, in said units main body 1, to also being provided with the dividing plate 16 of isolating usefulness near the horn mouth 2, the space in the unit main body 1 is divided into two at a side end of first heat exchanger 7.
Like this, dispose the space formation heat-exchanging chamber 17 of above-mentioned outdoor heat converter 6 and outdoor draft fan 12.Another space forms the compressor room 19 that disposes compressor 18.Outside in this compressor room 19 also is provided with and the sealed tube 20 that is connected from the extended refrigerant pipe of indoor assembly.And position above compressor 12 also disposes the electric component (not shown) of the electric part box that holds transformer etc. and choke etc.
Air conditioner outdoor unit with this formation, when compressor 18 and outdoor draft fan 12 are driven, air is introduced in the unit main body 1 by two extraneous air suction inlets 4,5, and by outdoor heat converter 6, carries out heat exchange with the cold-producing medium that flows through this heat exchanger 6.
The cold-producing medium that is directed into outdoor heat converter 6 is condensed when the cooling operating mode, is evaporated when the heating operating mode, flows out respectively then.There is back side portion extraneous air suction inlet 4 to be incorporated into air in the unit main body 1, carries out heat exchange with second heat exchanger 8 earlier, carry out heat exchange with first heat exchanger 7 again, and discharge by outlet 3.Flow to air in the unit main body 1 by the extraneous air suction inlet 5 of side surface part, carry out heat exchange with first heat exchanger 7, and discharge by outlet 3.
Like this, when the heat-exchange capacity of the outdoor heat converter 6 that is made of first heat exchanger 7 and second heat exchanger 8 increases, as described below, even do not increase air output, the also comparable original outdoor unit that only makes heat-exchange capacity increase to twice as shown in Figure 8 has the ability of stronger increase heat exchange, and comparable as shown in Figure 9 configuration has littler air-supply noise.
That is to say, constitute the tube-axial fan 15 of outdoor draft fan 12, bigger at the air quantity/wind speed that parallels unit main body 1 back side portion direction on the direction with the fan turning cylinder, and less with the air quantity/wind speed of unit main body side surface part direction on the perpendicular direction of fan turning cylinder.
In the present invention, with respect to the extraneous air suction inlet 4 of module body 1 back side portion, dispose second heat exchanger 8 and first heat exchanger 7, face only disposes first heat exchanger 7 with respect to side surface part suction inlet 5.
Promptly bigger with respect to the air quantity/wind speed of fan 15 position configuration has two groups of heat exchangers, and the position configuration less with respect to air quantity of fan/wind speed has one group of heat exchanger, so when heat-exchange capacity approximately increases to twice, the heat-exchange capacity that can obtain to adapt therewith, increased.
And, owing to increased the heat exchanger that forms flowing resistance in the bigger rear side of wind speed, and in wind speed smaller lateral side, do not increase heat exchanger, to be flow to the wind speed of heat exchange air of fan 15 by each extraneous air suction inlet 4,5 by each heat exchanger 7,8 even so can make, and then can reduce the air-supply noise that produces because of wind speed is inhomogeneous.
Particularly, be positioned at second heat exchanger 8 of upstream side, its U shape part 11 and U shape elbow all are positioned at the position outside the back side portion extraneous air suction inlet 4, directly do not contact with the air of being introduced by suction inlet, and can not produce turbulent flow, therefore can further reduce noise.
And as shown in Figure 2, the diameter da of heat-exchange tube 10Pa of first heat exchanger 7 that is positioned at downstream side is bigger, and it is less to be positioned at the diameter db of heat exchanger 10Pb of second heat exchanger 8 of upstream side.
As previously mentioned, the wind speed of the air of input by aerofoil fan 15 rotations, faster than the speed of rear side at its side, its difference is less than twice.If make the diameter of heat-exchange tube of second heat exchanger 8 identical with the diameter of the heat-exchange tube of first heat exchanger 7, and both positions differ from one another and indention disposes, and the flowing resistance between them differs about twice.Yet at this moment, the wind speed of side is bigger than rear side, so can produce noise because of wind speed is uneven.
In the present invention, only increase heat exchanger in the bigger back side portion of wind speed, and make the heat-exchange tube diameter db of second heat exchanger 8 of upstream side less, the heat-exchange tube diameter da of first heat-exchange tube 7 of downstream side is bigger, so can reduce flowing resistance significantly, and make the wind speed of the wind speed of side, thereby reduce noise less than rear side.
And, because heat exchanger 10Pa, the 10Pb of each heat exchanger 7,8 are along the airflow direction configured in parallel, so can further reduce flowing resistance.
In such a way when configured in parallel heat-exchange tube 10Pa, 10Pb, because of the positive rear side at upstream side heat-exchange tube 10Pb disposes downstream side heat-exchange tube 10Pa, the effect because of upstream side heat-exchange tube 10Pb of considering makes the development of temperature boundary layer, and then the heat exchanger effectiveness of downstream side heat-exchange tube 10Pa is descended, institute is so that upstream side heat-exchange tube diameter db is littler than downstream side heat-exchange tube diameter da, just can be at the fin 9 that constitutes first, second heat exchanger 7,8 ... when separating fully each other, can not reduce heat exchanger effectiveness yet.On the contrary, also has the advantage that can not increase flowing resistance.
In the present invention, when above-mentioned outdoor heat converter 6 was used as condenser when refrigerating operaton, cold-producing medium was introduced into first heat exchanger 7, entered second heat exchanger 8 again.
Promptly when outdoor heat converter 6 during as condenser, the cold-producing medium of its inflow side is the overheated gas state after being discharged by compressor 18.By with this heat exchanger 6 heat exchange simultaneously, refrigerant condition becomes gas-liquid two-phase state, supercooling state successively by overheated gas.
At this moment, overheated gas, or the pressure loss of the bigger two-phase state body (gas comprises larger proportion) of mass dryness fraction is bigger is because it is bigger earlier cold-producing medium to be imported the diameter da of heat-exchange tube of first heat exchanger 7, so can not increase its pressure loss, and then can not reduce heat exchanger effectiveness.
On the other hand, the cold-producing medium of heat exchanger 6 outflow sides is condensed gas-liquid two-phase cold-producing medium or liquid refrigerant, and mass dryness fraction is less.Because the pressure loss of the cold-producing medium of this state is little, so even the heat-exchange tube diameter more also can fully improve its thermal efficiency.Be that this heat-exchange tube diameter db with less second heat exchanger of setting in the outflow side 8 adapts.
Therefore, adopt the structure of foregoing first, second heat exchanger 7,8 of the present invention,, can in outdoor heat converter 6, improve its heat exchanger effectiveness by the setting of cold-producing medium circulating direction.
Outdoor heat converter also can be as shown in Figure 3.Diameter da at the heat-exchange tube 10Pa of the first heat exchanger 7A that is positioned at downstream side is bigger, be positioned under the less prerequisite of the diameter db of heat-exchange tube 10Pb of the upstream side second heat exchanger 8A, make heat-exchange tube 10Pa, the configuration of 10Pb indentation of heat exchanger 7A, 8A.
At this moment compare with original outdoor heat converter, can when reducing flowing resistance, increase its air quantity at least.And, because of the wind speed on the heat exchanger unit are is bigger, so can improve heat exchanger effectiveness.
That shown in Figure 4 also is a kind of outdoor heat converter 6B.Under the prerequisite that it is big at the diameter da of the heat-exchange tube 10Pa of the first heat exchanger 7B of downstream side position, the diameter db of the heat-exchange tube 10Pb of the second heat exchanger 8B of upstream side position is less, also make the heat-exchange tube spacing PPc of the first heat exchanger 7B bigger, make the heat-exchange tube spacing PPd of the second heat exchanger 8B less.
This, though the flowing resistance of outdoor heat converter 6B integral body can increase, and air quantity is descended, particularly the number because of the heat-exchange tube 10Pa among the second heat exchanger 8B has increased, so can improve its heat exchange performance.
Shown in Figure 5 also is the constituted mode of the stream in a kind of outdoor heat-exchange tube 6.Here illustrate be refrigerating operaton the time stream when using as condenser.
Cold-producing medium by the inflow of first heat exchanger, 7 one side ends, derive at the mid portion of heat exchanger substantially, in a single day and when exporting to the heat exchanger outside, promptly the side end by second heat exchanger 8 flows into, and derive by the pars intermedia of second heat exchanger 8, export to the heat exchanger outside more thus.This is the first path P1.
Cold-producing medium by the inflow of first heat exchanger, 7 mid portions, derive in the other end of this heat exchanger substantially, when exporting to the heat exchanger outside thus, flow into the mid portion of second heat exchanger 8 again, derive by the other end of second heat exchanger 8 then, be transported to the heat exchanger outside more thus.This is alternate path P2.
The stream that is formed in the heat exchanger of first heat exchanger 7 and second heat exchanger 8 is set at two path P1, P2, and in path, writes cold-producing medium independently respectively.
When increasing heat-exchange capacity,, then can cause the pressure loss to increase because of stream is long if only for refrigerant flow path is provided with a path by mode of the present invention.Therefore, for reducing its pressure loss, fully independently two paths can be set as described above.
The cold-producing medium outflow side of each path P1, P2 is second heat exchanger 8, because heat-exchange tube diameter db is littler than the heat-exchange tube diameter da in first heat exchanger 7, and then can reduce its pressure loss, so no longer need to increase path (increasing to four paths) at each path midway, by two paths.
As shown in Figure 6, also can make the fin 9 that constitutes the first heat exchanger 7C ... inter fin space PPe thinner, constitute the fin 9 of the second heat exchanger 8C ... inter fin space PPf thicker.Promptly the inter fin space PPf of second heat exchanger is wideer than the inter fin space PPe of first heat exchanger.
Explain over and over again as above-mentioned, when using tube-axial fan 15, the wind speed of side is bigger than the wind speed of rear side.But its difference is less than twice, so when the heat-exchange tube that disposes same diameter, when making flowing resistance be twice, the wind speed relation of side＞rear side will be arranged once more, thereby can produce noise because of the wind speed imbalance.
When as shown in the figure, when widening inter fin space PPf, can make the wind speed balance of side and rear side, thereby be unlikely to produce noise for not increasing flowing resistance that back side portion is positioned at the second heat exchanger 8C of wind upstream side.
As shown in Figure 7, also can make the first heat exchanger 7D at the fin of the part 7e relative with back side portion extraneous air suction inlet 4 PPg broad at interval, the inter fin space PPh of the part 7f relative with side surface part extraneous air suction inlet 5 is narrower.
Promptly owing to, also be provided with second heat exchanger 8 side by side, so can increase the flowing resistance of rear side at the part 7e place of the first heat exchanger 7D along back side portion extraneous air suction inlet 4.Therefore, consistent for the flowing resistance that makes rear side and side, be provided with the inter fin space PPh of side narrower.Like this, the wind speed of side and rear side is even, so can prevent because of the inhomogeneous noise that produces of wind speed.
In the various embodiments described above, first heat exchanger, 7～7E all is the L shape on plane, but the present invention is not limited to this, also can be the shape round the U of tube-axial fan.
If adopt the structure of as above illustrated each claim of the present invention, just can increase capacity of heat exchanger, increase heat-exchange capacity.And, owing to the flowing resistance homogenising that can make, so also can obtain to reduce the effect of air-supply noise with respect to the heat exchange air that passes through heat exchanger.
Claims (7)
1. the outdoor unit of air conditioner, it comprises: by portion in front be provided with outlet, portion and lateral parts are provided with the unit main body that the basket of air suction inlet constitutes overleaf; Be configured in the outdoor heat converter in this unit main body; And will be directed at above-mentioned outdoor heat converter by the air that above-mentioned suction inlet imports, and with undertaken being expelled to outside pressure fan by above-mentioned outlet again after the heat exchange by the cold-producing medium in this outdoor heat converter;
It is characterized in that above-mentioned outdoor heat converter by having first linear portion relative and the second linear portion relative, the kink between the first linearity portion and the second linearity portion with the suction inlet of above-mentioned side surface part with the suction inlet of above-mentioned back side portion, and surround first heat exchanger of above-mentioned pressure fan and be arranged on the aforementioned first linearity portion and the said external air suction inlet at portion place, the aforementioned back side between, the second linearly heat exchanger constitutes.
2. the outdoor unit of air conditioner as claimed in claim 1, it is characterized in that above-mentioned first heat exchanger and above-mentioned second heat exchanger are a plurality of fin that are arranged side by side by with narrow inter fin space, with the fin one cast heat-exchange tube that the heat-exchange tube that runs through the guiding cold-producing medium that is arranged in these fin constitutes, the diameter of heat-exchange tube that constitutes first heat exchanger is bigger than the diameter of the heat-exchange tube that constitutes second heat-exchange tube.
3. the outdoor unit of air conditioner as claimed in claim 2 is characterized in that constituting the heat-exchange tube of above-mentioned first heat exchanger and constitutes the heat-exchange tube of second heat exchanger and the airflow direction configured in parallel of heat exchange air.
4. the outdoor unit of air conditioner as claimed in claim 2, it is characterized in that above-mentioned outdoor heat-exchange tube is used as condenser when the cooling operating mode, the cold-producing medium of supplying with this outdoor heat converter imports aforementioned first heat exchanger earlier and carries out heat exchange, import aforementioned second heat exchanger again and carry out heat exchange, constitute the distribution channel of cold-producing medium thus.
5. the outdoor unit of air conditioner as claimed in claim 4, it is characterized in that in above-mentioned first heat exchanger and second heat exchanger, forming respectively two independently refrigerant circulation roads, above-mentioned outdoor heat converter in the cooling running, flow through respectively above-mentioned each refrigerant circulation road and derive of the cold-producing medium that imports earlier above-mentioned first heat exchanger by above-mentioned second heat exchanger.
6. the outdoor unit of air conditioner as claimed in claim 2 is characterized in that the inter fin space of above-mentioned second heat exchanger is wideer than the inter fin space of first heat exchanger.
7. the outdoor unit of air conditioner as claimed in claim 2 is characterized in that the inter fin space of the second linear portion in above-mentioned first heat exchanger is narrower than the inter fin space of the above-mentioned first linear portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07788895A JP3361405B2 (en) | 1995-04-03 | 1995-04-03 | Outdoor unit of air conditioner |
| JP077888/95 | 1995-04-03 | ||
| JP077888/1995 | 1995-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1149117A CN1149117A (en) | 1997-05-07 |
| CN1100238C true CN1100238C (en) | 2003-01-29 |
Family
ID=13646621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96105916A Expired - Fee Related CN1100238C (en) | 1995-04-03 | 1996-02-28 | Outdoor unit of air conditioner |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3361405B2 (en) |
| KR (1) | KR100189000B1 (en) |
| CN (1) | CN1100238C (en) |
| GB (1) | GB2299656B (en) |
| TW (1) | TW367019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087978B (en) * | 2004-12-24 | 2010-05-12 | 东芝开利株式会社 | Outdoor unit for air conditioner |
| CN101198794B (en) * | 2005-07-22 | 2010-07-21 | 大金工业株式会社 | Blower and air conditioner outdoor unit with the blower |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0845649A3 (en) * | 1996-11-28 | 1999-04-14 | Kimura Kohki Co., Ltd. | Heat Exchange Coil |
| SG90702A1 (en) * | 1997-02-24 | 2003-08-20 | Kimura Kohki Co | Heat exchange coil |
| JP2006084051A (en) * | 2004-09-14 | 2006-03-30 | Daikin Ind Ltd | Outdoor machine of refrigeration device |
| JP4470755B2 (en) * | 2005-02-21 | 2010-06-02 | パナソニック株式会社 | Outdoor unit of separate air conditioner |
| ITBS20060045A1 (en) * | 2006-02-28 | 2007-09-01 | Olimpia Splendid S P A | EXTERNAL UNIT FOR CONDITIONERS |
| JP4187034B2 (en) * | 2006-10-05 | 2008-11-26 | ダイキン工業株式会社 | Indoor unit of air conditioner |
| JP2008128553A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Outdoor unit of air conditioner |
| KR101070621B1 (en) | 2007-01-31 | 2011-10-07 | 삼성전자주식회사 | Developing cartridge and image forming apparatus including the same |
| JP2008261552A (en) * | 2007-04-12 | 2008-10-30 | Daikin Ind Ltd | Heat source unit |
| JP4794498B2 (en) * | 2007-04-17 | 2011-10-19 | 三菱電機株式会社 | Refrigeration air conditioner |
| KR101042641B1 (en) | 2007-07-18 | 2011-06-20 | 삼성전자주식회사 | Developing apparatus, Image forming apparatus having the same, and Assembling method for a developing apparatus |
| KR20090022840A (en) * | 2007-08-31 | 2009-03-04 | 엘지전자 주식회사 | Heat exchanger |
| KR101520484B1 (en) * | 2008-07-04 | 2015-05-14 | 엘지전자 주식회사 | Heat exchanger |
| JP5477315B2 (en) * | 2011-03-07 | 2014-04-23 | 三菱電機株式会社 | Refrigeration air conditioner |
| JP5873994B2 (en) * | 2011-04-28 | 2016-03-01 | パナソニックＩｐマネジメント株式会社 | Air conditioner outdoor unit |
| JP6124044B2 (en) * | 2011-07-20 | 2017-05-10 | 京進工業株式会社 | Manufacturing method of gripping body of heat exchanger insertion tube |
| CN104204682B (en) * | 2012-02-20 | 2017-06-06 | 三菱电机株式会社 | The outdoor unit of air conditioner |
| EP2884211A4 (en) * | 2012-08-08 | 2016-04-06 | Mitsubishi Electric Corp | Heat exchanger and air conditioner provided with said heat exchanger |
| CN105783139A (en) * | 2012-08-08 | 2016-07-20 | 三菱电机株式会社 | Manufacture method for heat exchanger and manufacture method for air conditioner |
| CN105659039B (en) * | 2013-10-25 | 2017-09-12 | 三菱电机株式会社 | Heat exchanger and the refrigerating circulatory device using the heat exchanger |
| CN103759344A (en) * | 2014-01-10 | 2014-04-30 | 广东美的制冷设备有限公司 | Air conditioner and outdoor unit thereof |
| CN107003082A (en) * | 2015-01-30 | 2017-08-01 | 三菱电机株式会社 | Heat exchanger and refrigerating circulatory device |
| JP2017067310A (en) * | 2015-09-28 | 2017-04-06 | 東芝キヤリア株式会社 | Heat exchange unit and heat exchange apparatus |
| KR102491602B1 (en) * | 2015-10-23 | 2023-01-25 | 삼성전자주식회사 | Air conditioner |
| JP2016048162A (en) * | 2015-12-14 | 2016-04-07 | 三菱電機株式会社 | Manufacturing method for heat exchanger and manufacturing method for air conditioner |
| JP6925332B2 (en) * | 2016-06-07 | 2021-08-25 | 三菱電機株式会社 | Outdoor unit of air conditioner |
| WO2019077744A1 (en) * | 2017-10-20 | 2019-04-25 | 三菱電機株式会社 | Air conditioner |
| CN109798644B (en) * | 2019-01-15 | 2020-11-13 | 广东美的暖通设备有限公司 | Control method and air conditioning system |
-
1995
- 1995-04-03 JP JP07788895A patent/JP3361405B2/en not_active Expired - Fee Related
-
1996
- 1996-01-19 TW TW087200825U patent/TW367019U/en unknown
- 1996-02-23 GB GB9603896A patent/GB2299656B/en not_active Expired - Fee Related
- 1996-02-28 KR KR1019960005608A patent/KR100189000B1/en not_active IP Right Cessation
- 1996-02-28 CN CN96105916A patent/CN1100238C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087978B (en) * | 2004-12-24 | 2010-05-12 | 东芝开利株式会社 | Outdoor unit for air conditioner |
| CN101198794B (en) * | 2005-07-22 | 2010-07-21 | 大金工业株式会社 | Blower and air conditioner outdoor unit with the blower |
Also Published As
| Publication number | Publication date |
|---|---|
| TW367019U (en) | 1999-08-11 |
| GB2299656B (en) | 1997-03-26 |
| KR100189000B1 (en) | 1999-06-01 |
| KR960038339A (en) | 1996-11-21 |
| CN1149117A (en) | 1997-05-07 |
| JP3361405B2 (en) | 2003-01-07 |
| GB9603896D0 (en) | 1996-04-24 |
| JPH08270985A (en) | 1996-10-18 |
| GB2299656A (en) | 1996-10-09 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
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Granted publication date: 20030129 Termination date: 20140228 |