CN1782554A - Outdoor unit system of air conditioner - Google Patents
Outdoor unit system of air conditioner Download PDFInfo
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- CN1782554A CN1782554A CN 200410093634 CN200410093634A CN1782554A CN 1782554 A CN1782554 A CN 1782554A CN 200410093634 CN200410093634 CN 200410093634 CN 200410093634 A CN200410093634 A CN 200410093634A CN 1782554 A CN1782554 A CN 1782554A
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Abstract
The present invention belongs to the field of air conditioner technology, and is especially outdoor unit system of air conditioner with super cooler of double pipe to re-cool refrigerant before being provided to the indoor unit. Inside the outdoor unit, the inflow refrigerant is first compressed in the compressor, then heat exchanged in the outdoor heat exchanger to become liquid refrigerant, further cooled in the super cooler comprising inner pipe and outer pipe, and finally provided to the indoor unit. Or, the refrigerant the compressor exhausts may also flow into one other outdoor unit via a high and lower pressure common pipe. In addition, the super cooler has opposite refrigerant flow directions inside the inner pipe and inside the outer pipe, and is provided with a reverse transferring pipe and a super cooling expansion valve for supplying partial refrigerant to the outer pipe. The present invention has the advantage of raising the efficiency of the air conditioner.
Description
Technical field
The invention belongs to the technical field of air-conditioner, more particularly, is the outdoor machine system that the relevant supercooling machine that is made of dual pipe cools off the air-conditioner of supplying with to indoor set behind the refrigerant once more.
Background technology
Generally, air-conditioner be according to the hot-air in the suction chamber with after the refrigerant heat exchange of low temperature with these in the cool room of effect repeatedly of indoor discharge, constitute the machine of a freeze cycle perhaps with the cooling/heating system in the adverse effect heating chamber, and by compressor-condenser-expansion valve-evaporimeter shape.
Recently, air-conditioner except refrigeration and heat-production functions, after also having both suction chamber internal contamination air and being converted to peace and quiet air after filtering and being converted to dried humid air to indoor air-cleaning function of discharging again, with many humid air to indoor multiple additional functions such as dehumidification function of discharging again.
Well-known air-conditioner is broadly divided into split-type air conditioner and off-premises station and the integrally formed package AC plant of indoor set that off-premises station and indoor set are installed separately.
In addition, occurred recently when the air-conditioner situation more than 2 is installed by family or the situation of the device that will install an air-conditioner in each office in the building of a plurality of offices is being arranged, more effectively being suitable for the multi-split air conditioner of these situations.Such multi-split air conditioner is to connect a plurality of indoor sets, the effect that can obtain installing many detachable air conditioners on an off-premises station.
Fig. 1 is the installment state figure of prior art multi-split air conditioner, and Fig. 2 is the structure of prior art multi-split air conditioner and the structural representation that refrigerant flows.As shown in the figure, off-premises station 1 includes formations such as compressor 10, fluid reservoir 20 and outdoor heat converter 30, and indoor set 50 includes indoor heat converter 60 and expansion valve 70.
At such multi-split air conditioner, be connected with a plurality of indoor sets 50 on the off-premises station 1, and connect high-voltage tube 80 with high pressure and low-voltage tube 90 between off-premises station 1 and the indoor set 50 separately with relative low pressure.
When foregoing air-conditioner carried out refrigeration, the outdoor heat converter 30 of off-premises station 1 played the condenser effect of condensation from the gaseous state refrigerant of the high temp/high pressure of compressor 10 conveyings.Such condensation refrigerant is expanded to after the gaseous state of low temperature/low pressure by expansion valve 70, is transported to 60 li of indoor heat converters.
Inflow refrigerants in the indoor heat converter 60 are owing to carry out heat exchange with room air, so be transformed to low temperature/low pressure refrigerant that 2 kinds of states that gaseous state and liquid condition mix mutually mix.Such refrigerant is transported to the 1st circulation (cycle) that constitutes refrigerant in the compressor 10 again by after the fluid reservoir [Accumulator] 20.
Then, when foregoing air-conditioner heated effect, the flow direction of refrigerant and the effect of heat exchanger were just in time opposite.That is, 70 orders to outdoor heat converter 30 flow the refrigerant that compresses in compressor 10 to indoor heat converter 60 to expansion valve with fluid reservoir 20.
At this moment, indoor heat converter 60 plays to make through its inner HTHP refrigerant and carries out the condenser effect of heat exchange with room air, and outdoor heat converter 30 plays the evaporimeter effect that makes inner low-temp low-pressure refrigerant carry out heat exchange with outdoor air.
The off-premises station 1 of prior art among Fig. 3 to Fig. 5.To shown in Figure 5, the bottom is formed with the chassis 2 that a plurality of parts are installed to off-premises station 1 as Fig. 3, and the front end on such chassis 2 is equipped with the front panel 4 that forms the front outward appearance.Front panel 4 is by the front upper panel 4 that is installed in upside ' and be installed in the front lower panel 4 of downside and " constitute.
Front lower panel 4 " on be equipped with conduit bracket [Bracket] 4 " a.That is, front lower panel 4 " the lower end cut a part, such cut-away portions is communicated with conduit bracket 4 " a sealing, but conduit bracket 4 " a direct high pressure pipe 80 and low-voltage tube 90 installs on the indoor sets 50.
Front upper panel 4 ' and front lower panel 4 " between central bracket [Bracket] 6 also be installed guide installation.And, front upper panel 4 ' the upper end be equipped with again top bracket 6 ', such top bracket [Bracket] 6 ' on the motor base 48 ' leading section that will illustrate below being combined with.
The left and right sides side of front panel 4 promptly is equipped with the place ahead support 8 on the front end left and right sides edge on chassis 2.The place ahead support 8 is that direction forms more longways up and down, supports front panel 4 and the following side grid 34 that will illustrate.
One side of compressor 10 is equipped with oil eliminator 12 separately.Oil eliminator 12 filters the oil [oil] that mixes from the refrigerant that compressor 10 is discharged, and reclaims to compressor 10.
With specified altitude assignment valve support 14 is installed on the left side rearward end on chassis 2, auxiliary valve 16 is installed and supported in the upper end of such valve support 14 separately.
The central portion on chassis 2 promptly, constant speed compressor 10 ' and frequency-changeable compressor 10 " between fluid reservoir 20 is installed.Fluid reservoir 20 filter liquide refrigerants only allow gaseous coolant flow into compressor 10 inside.
The upside of compressor 10 is equipped with control box 22.Though not shown, control assembly and printed circuit board (PCB)s such as voltage transformer, capacitor are installed on the control box 22.Control box 22 is four jiaos of box-like shapes of front openings, by the front controller lid 22 ' come closed interior is installed.
Installation room outer heat-exchanger 30 on the side end on chassis 2 and the rearward end.Outdoor heat converter 30 is to make inner mobile refrigerant carry out heat exchange with extraneous air, and in left and right sides mounted in pairs.
That is, left side installation ' ' shape (the time marquis's who sees from the top) left side outdoor heat converter 30 ', at right side installation ' ' shape (the time marquis's who sees from the top) right side outdoor heat converter 30 ".And, also be equipped with the conduit tube component 32 that guiding refrigerant flows on the inlet of such outdoor heat converter 30, be equipped with air accumulator 33 in the outlet.
And, back, left side grid 36 ' and back, right side grid 36 " between the back support 38 of promising fixedly back grid 36 is installed, on the left and right sides edge part of the rear end on chassis 2, be formed with separately rear support 38 '.
The top outward appearance of off-premises station 1 is formed by top panel 40.Top panel 40 is with chassis 2 corresponding four jiaos of flat boards, the central left and right sides be formed with a pair of passage 40 '.
Passage 40 ' top installing ring cover [shroud] 42.Ring cover 42 is outstanding upward drum shapes, the air that guiding is discharged to the outside by the following blowing fan that will illustrate 46.The upper end of ring cover 42 is installed and is discharged grid 44.
But, following shortcoming is arranged: the shortcoming that the refrigerant temperature that has process outdoor heat converter (30) to supply with to indoor set (50) in the prior art can not be sufficiently cooled in the aforesaid prior art.
Summary of the invention
The present invention invents for the shortcoming that solves above-mentioned prior art, and its purpose is, a kind of multi-split air conditioner outdoor machine system that is equipped with the supercooling machine that is made of dual pipe at the outlet side of outdoor heat converter is provided.
Another object of the present invention is to, for the discharge refrigerant temperature of easy conditioning chamber outer heat-exchanger.
In order to achieve the above object, according to outdoor unit system of air conditioner of the present invention, it is characterized in that, the inflow refrigerant of off-premises station is in compressor compresses, the discharge refrigerant of compressor carries out heat exchange and is converted to liquid coolant at outdoor heat converter, the discharge refrigerant of outdoor heat converter supplies in the indoor set reduce temperature through the supercooling machine time after, and the discharge refrigerant of compressor can flow in another off-premises station by the general pipe of high-low pressure, and the supercooling machine constitutes by having the dual pipe of designated length.
The supercooling machine constitutes feature by with the inside tube that outdoor heat converter is communicated with and the guiding liquids refrigerant flows in the outboard tube that the outside of inside tube forms and the guiding gas coolant flows.
The flow direction of mobile refrigerant is feature on the contrary in refrigerant and the outboard tube of flowing in the inside tube.
The discharge refrigerant of outboard tube is a feature through flowing in the compressor behind the fluid reservoir.
The contrary transfer tube that one side of supercooling machine is formed with the part inflow refrigerant of outside side pipe guiding indoor set is a feature.
Being equipped with the supercooling expansion valve that will be converted to the cryogenic gas refrigerant after the liquid coolant expansion on the contrary transfer tube is feature.
According to above-mentioned formation, has the advantage that can improve conditioner efficiency according to the outdoor machine system of air-conditioner of the present invention.
The effect of invention: as mentioned above, in the outdoor machine system according to air-conditioner of the present invention, be equipped with the supercooling machine of the designated length that constitutes by dual pipe at the outlet side of outdoor heat converter.
That is, among the present invention, discharge from the guiding outdoor heat converter tell a certain amount of refrigerant in the outdoor liquid line of refrigerant after, by expanding refrigerant is converted to low temperature.And with such low temperature refrigerant to the outside adverse current of outdoor liquid line, be applied to the mobile refrigerant of the outer liquid line inside of cooling chamber.Therefore, the refrigerant temperature of supplying with to indoor set can fully descend.
In addition, utilize the adverse current refrigerant in the supercooling expansion valve adjustment inflow supercooling machine on the contrary transfer tube, the refrigerant temperature of indoor set is gone in adjustable rectification.Therefore, the refrigerant temperature of supplying with to indoor set is easy to maintain design temperature.As a result, the effect of the efficient raising of air-conditioner of the present invention.
Description of drawings
Fig. 1 is the installment state figure of prior art multi-split air conditioner.
Fig. 2 is the structure of prior art multi-split air conditioner and the structural representation that refrigerant flows.
Fig. 3 is the off-premises station stereoscopic figure of prior art air-conditioner.
Fig. 4 is the off-premises station STRUCTURE DECOMPOSITION stereogram of prior art air-conditioner.
Fig. 5 is the inside front elevation that unloads front-panel status of prior art air-conditioner outdoor unit.
Fig. 6 is the installment state figure according to air-conditioner of the present invention.
Fig. 7 is according to the formation of outdoor unit system of air conditioner of the present invention and the mobile structural representation of refrigerant.
Fig. 8 is the detailed pie graph of air-conditioner outdoor unit of the present invention.
Fig. 9 is air-conditioner outdoor unit stereoscopic figure of the present invention.
Figure 10 is the inner formation of an air-conditioner outdoor unit of the present invention exploded perspective view.
Figure 11 is an inside front elevation of pulling down the off-premises station front-panel status of air-conditioner of the present invention.
Figure 12 is the inner component part stereogram of outdoor unit system of air conditioner of the present invention.
Figure 13 is the supercooling machine section pie graph of outdoor unit system of air conditioner of the present invention.
The explanation * * * of accompanying drawing major part symbol
100: off-premises station 102: outdoor magnetic valve
110: chassis 112: front panel
114: front grid 116: the front upper bracket
120: constant speed compressor 120 ': frequency-changeable compressor
120a: coolant injection device 121: oil equalizing pipe
121 ': oil equalizing pipe temperature sensor 122: oil eliminator
123: oil pipe 124: cross valve
126: valve brace table 128: auxiliary valve
130: supercooling machine 130 ': contrary transfer tube
130 ' a: supercooling expansion valve 132: fluid reservoir
134,134 ': the place ahead support [frame] 136: central bracket
140: left side control box [control box] 140 ': the right side control box
142: voltage transformer 144: capacitor [capacitor]
146: heater element plate 146 ': heat unit
148: heat release fan 150: dividing plate [barrier]
152: air guide holes 154: the air pilot cap
160: top panel 162: passage
164: ring cover 166: discharge grid
170: blowing fan 172: fan electromotor
174: motor base [mount] 180: outdoor heat converter
182: front heat exchanger 184: the back heat exchanger
186: drip tray [drain pan] 188: side panel
190: back grid 192: rear board
194: top, back bracket 196: rear support
200: indoor set 202: indoor heat converter
204: expansion valve 210: the general pipe of liquid
210 ': liquid branch pipe 210 ": outdoor liquid line
212: the general pipe 212 of gas ': the gas branch pipe
212 ": outdoor flue 214: the general pipe of high-low pressure
The specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and preferred embodiment.
Fig. 6 is the installment state figure of multi-split air conditioner of the present invention, and Fig. 7 is the structural representation of multi-split air conditioner structure of the present invention and refrigerant flow regime.As shown in the figure, off-premises station 100 by constant speed compressor 120, frequency-changeable compressor 120 ', fluid reservoir 132, outdoor heat converter 180, outdoor magnetic valve (LEV:linear expansion valve, be called below ' outdoor LEV ') 102 formations such as grade, and indoor set 200 is made of indoor heat converter 202, expansion valve 204 etc.
In the multi-split air conditioner, connect a plurality of indoor sets 200 on the off-premises station 100 more than one or two, the unitary catheter that has liquid coolant to flow between off-premises station 100 and the indoor set 200 is that the unitary catheter that general pipe 210 of liquid and gas coolant flow is the general pipe 212 of gas, and the general pipe 210 of liquid and the general pipe 212 of gas are interconnected.In addition, the promising balanced and general pipe 214 of high-low pressure of UNICOM mutually of refrigerant of keeping between the plural off-premises station 100.
The general pipe 214 of high-low pressure is to install for outdoor heat converter 180 entrance sides on a plurality of off-premises stations 100 that are interconnected, and what make off-premises station 100 keeps the refrigerant equilibrium each other.And, make refrigerant also flow in a plurality of off-premises stations 100 180 li of untapped off-premises station 100 outdoor heat converters, so the effect that has the overall thermal exchange efficiency to improve.In addition, according to freezing or heating running, 214 li mobile high pressure refrigerants of the general pipe of high-low pressure or low pressure refrigerant.
Be formed with separately on the indoor set 200 liquid coolant flowing liquid branched pipe 210 ' and gas branch pipe 212 of flowing of gas coolant '.Such liquid branch pipe 210 ' and general pipe 210 of gas branched pipe 212 ' connection liquid and the general pipe 212 of gas.
In addition, liquid branch pipe 210 ' with gas branched pipe 212 ' basis be connected with it different its diameters of indoor set 200 capacity different separately
Be formed with separately on the off-premises station 100 that liquid coolant flows outdoor liquid line 210 " and gas coolant flow outdoor flue 212 ".Outdoor liquid line 210 like this " and outdoor flue 212 " is communicated with stating the general pipe 212 of general pipe 210 of liquid and gas.
Fig. 8 to Figure 12 diagram constitutes according to multi-split air conditioner off-premises station of the present invention.As shown in the figure, the chassis 110 of formation bottom surface is installed in and is equipped with a plurality of parts bottom.Front end on such chassis 110 is equipped with the front panel 112 that forms the front lower outward appearance.
The upside of front panel 112 is equipped with front grid 114.Therefore, extraneous air flows into by front grid 114, and through the following outdoor heat converter that will illustrate 180.And the upside of front grid 114 also is equipped with front upper bracket 116, and the leading section of the following motor base that will illustrate 174 is fastened on such front upper bracket 116.
On chassis 110, be equipped with compressor 120,120 '.Compressor 120,120 ' be compression refrigerant makes refrigerant become the HTHP refrigerant, and is installed in the left and right sides on chassis 110 separately.That is, the constant speed compressor 120 of constant speed drive is installed on relative right side, variable-ratio heat pump [Variable Speed Heat Pump] is installed promptly on the left side, frequency-changeable compressor 120 '.
Compressor 120,120 ' entrance side coolant injection device 120a is installed.Coolant injection device 120a supplies with refrigerant according to working order when the compressor 120,120 ' overheated, prevents wearing and tearing of compressor.The discharge refrigerant of the outdoor heat converter 180 that will illustrate below the refrigerant here preferably uses.
And, constant speed compressor 120 and frequency-changeable compressor 120 ' between oil equalizing pipe 121 is set, make constant speed compressor 120 and frequency-changeable compressor 120 ' be interconnected.Therefore, when the phenomenon of fuel feeding deficiency appears in the compressor of any side,, prevent the phenomenon of compressor 120,120 ' damage of causing because of low on fuel thus from another compressor make-up oil.
That is, oil [oil] with refrigerant together from compressor 120,120 ' outlet discharge, so the oil that mixes in the refrigerant after oil eliminator 122 is separated, by oil return pipe 123 get back to compressor 120,120 '.Use the reason of lubricating oil: the frictional heat of generation is used when reducing compressor 120,120 ' running.
And, the outlet side of oil eliminator 122 have check valve 122 ', prevent the adverse current of refrigerant.That is, have only constant speed compressor 120 or frequency-changeable compressor 120 ' in any one running the time, prevent compressor 120, the 120 ' inner adverse current of compression refrigerant in stopping.
Therefore, after local a gathering, flow into cross valve 124 from the refrigerant of constant speed compressor 120 and frequency-changeable compressor 120 ' discharge.Such cross valve 124 inlets be provided with the high pressure sensor 124 of perception [check] compressor 120,120 ' discharge refrigerant pressure '.
In addition, traverse cross valve 124 hot gas (hot gas) pipe 125 is installed.The effect of heating pipe 125 is to make 132 li of the fluid reservoirs that refrigerant parts that flow to cross valve 124 from oil eliminator 122 will illustrate below can flowing directly into.
The effect of heating pipe 125 is: be necessary to improve in the low pressure refrigerant pressure that flows into fluid reservoir 132 in the running of air-conditioner, make the high pressure refrigerant of compressor 120,120 ' discharge oral-lateral flow directly into compressor 120,120 ' entrance side.By-passing valve [bypass valve] is installed promptly on such heating pipe 125, hot-blast valve 125 ' switching conduit.
The central valve support 126 of installing of the top first half on chassis 110.Valve support 126 plays a part to support and guides outdoor liquid line 210 ", outdoor flue 212 ", the general pipe 214 of high-low pressure, and auxiliary valve 128 also is installed in here.And, the conduit gateway 188 of the conduit 210,212,214 that is supported by valve support 126 by the following side panel that will illustrate 188 ' draw and be connected on the off-premises station 100.
Be formed with supercooling machine 130 on the last left side of face rearward end on chassis 110.Refrigerant after the outdoor heat converter 180 interior heats exchange that supercooling machine 130 further will illustrate below the cooling, and at the outdoor liquid line 210 of following junction chamber outer heat-exchanger 180 outlet sides " the optional position on form.
Supercooling machine 130 is to be formed by dual pipe.That is, outdoor liquid pipe 210 is set in the inboard ", and form in the outside contrary transfer tube 130 '.Therefore, contrary transfer tube 130 ' come out from the outlet branch of supercooling machine 130, and so contrary transfer tube 130 ' on the supercooling expansion valve 130 ' a that cools off refrigerant by expansion process is installed.
Thus, a part of refrigerant of discharging from supercooling machine 130 flow into contrary transfer tube 130 ', and through supercooling expansion valve 130 ' a the time, be cooled, and the cooling refrigerant is in supercooling machine 130 adverse currents, Nei Ce refrigerant further is cooled thus.The adverse current refrigerant of discharging from supercooling machine 130 supplies to 132 li in the oil storage tank that the following describes again, circulates once more.
Supercooling machine 130 is formed by dual pipe.That is, with outdoor liquid line 210 " the inside tube 130a that is communicated with forms in central authorities, and the outside of such inside tube 130a is formed with the outboard tube 130b with the following contrary transfer tube 130 that will illustrate ' connection.
In addition, be formed with outdoor liquid line 210 in the outlet of supercooling machine 130 ", and outdoor liquid line 210 " the contrary transfer tube 130 of last connection '.Contrary transfer tube 130 ' effect be: guiding from outdoor heat converter 180 discharge and by outdoor liquid line 210 " mobile refrigerant, make the refrigerant that flows flow into outboard tube 130b and adverse current.
After being equipped with and will liquid coolant expanding, contrary transfer tube 130 ' go up is converted to the supercooling expansion valve 130 ' a of cryogenic gas refrigerant.In addition, such supercooling expansion valve 130 ' a adjusts by the cold medium flux against transfer tube 130 ' adverse current.Therefore, the refrigerant by supercooling machine 130 becomes the needed temperature of user.That is, many more by the cold medium flux of contrary transfer tube 130 ' adverse current, the mobile refrigerant temperature of supercooling machine 130 is low more.
According to aforesaid formation, a part that has served as cooler 130 discharge refrigerant flow into contrary transfer tube 130 ', refrigerant is being to expand and be converted to the cryogenic gas refrigerant through supercooling expansion valve 130 ' a, and carry out heat exchange the outboard tube 130b adverse current of the gas coolant of such low temperature by supercooling machine 130 time, further cool off the working fluid refrigerant in the inside tube 130a.
As mentioned above, the discharge liquid coolant of outdoor heat converter 180 flows into 200 li of indoor sets after further being cooled by heat conduction through supercooling machine 130 time; The adverse current refrigerant of discharging from the outboard tube 130b of supercooling machine 130 through below the fluid reservoir 132 that will illustrate supply to compressor 120,120 ' lining again, circulate.
In addition, the outlet of supercooling machine 130 is provided with and detects the liquid line temperature sensor 130a that off-premises station 100 is discharged refrigerant temperature.In the outlet of supercooling expansion valve 130 ' a supercooling inlet sensor 130 ' b is installed, detects the adverse current refrigerant temperature that flows into supercooling machine 130.Supercooling machine 130 discharge the adverse current refrigerants the contrary transfer tube 130 of internal flow ' on be provided with supercooling and export sensor 130 ' c.
Therefore, through the refrigerant of outdoor heat converter 180 in the central portion flow and be inflated valve (not shown) the low temperature refrigerant that expands is externally flowed round about, further reduce the temperature of refrigerant thus.
In a side of supercooling machine 130 promptly, discharge the outdoor liquid pipe 210 of refrigerants to indoor set 200 guiding outdoor heat converters 180 " a side be provided with drying machine [Drier] 131.Drying machine 131 plays a part to remove outdoor liquid pipe 210 " in the moisture in the refrigerant that flows.
110 the central portion on the chassis, constant speed compressor 120 and frequency-changeable compressor 120 ' between fluid reservoir 132 is installed.Fluid reservoir 132 filter liquide refrigerants, only with the refrigerant of gaseous state to compressor 120,120 ' guiding.
Promptly, from the refrigerant that indoor set 200 flows into, if can not evaporate with the refrigerant that liquid condition stays be fed directly to compressor 120,120 ' in, refrigerant is converted to the compressor 120,120 of high temperature, gases at high pressure state refrigerant ' go up increases load, bring thus compressor 120,120 ' damage.
Therefore, in the inflow refrigerant of fluid reservoir 132 inside, do not have enough time to evaporate and heavier with the refrigerant refrigerant that liquid condition the stays gasiform refrigerant that compares, thus assemble in the bottom of fluid reservoir 132, and have only the gaseous state refrigerant on top to flow into compressor 120,120 ' lining.In addition, the entrance side of oil storage tank 132 be provided with separately the suction lead temperature sensor 132 that detect to suck refrigerant temperature ' and the low pressure sensor 132 of perception refrigerant pressure ".
The front end both sides on chassis 110 be formed with separately the place ahead support 134,134 '.The front end of the place ahead support 134,134 ' on the chassis 110 direction up and down forms more longways, and be divided into the left forward side support 134 that is installed in left-hand end and the right forward side support 134 that is installed in right-hand end '.
The place ahead support 134,134 ' play a part support front upper bracket 116, front grid 114 and the following control box that will illustrate 140,140 '.And, left forward side support 134 and right forward side support 134 ' central portion on to the left and right direction central bracket 136 is installed.
Be equipped with in the bottom of central bracket 136 control box 140,140 '.Control box 140,140 ' form in pairs in the left and right sides, bottom of central bracket 136.That is control box 140,140 ' by the left side control box 140 that is installed in the left side and be installed in the right side control box 140 on right side ' form.And left side control box 140 utilizes hinge 140a to be fixed on the left forward side support 134, right side control box 140 ' utilize hinge 140 ' a be fixed on right forward side support 134 '.
Four jiaos of box-like shapes of control box 140,140 ' each self-forming front openings, its place ahead is sealed by front panel 112.And the left side control box is equipped with control assembly and heater element plates 146 such as voltage transformer 142, capacitor 144 for 140 li.
The back of heater element plate 146 be formed with the heat unit 146 that constitutes by the heat release sheet '.In addition, upper end, the back of left side control box 140 is equipped with heat release fan 148, and such heat release fan 148 is cross flow fans.Therefore, if heat release fan 148 sucks air and discharges upward, then promote heat unit 146 ' on heat exchange, heater element plate 146 is cooled.
Control box 140,140 ' side utilize separately hinge 140a, 140 ' a be installed in the place ahead support 134,134 ' on, so with such hinge 140a, 140 ' a serve as the axle can forwards rotate.Therefore, when needing repairing internal part,, just can carry out operation as long as control box 140,140 ' is forwards rotated.
Dividing plate 150 is installed on the central bracket 136.Dividing plate 150 is divided into upside space and lower side space with off-premises station 100 inside.That is, be divided into install compressor 120,120 ' and control box 140,140 ' etc. downside and install below the upside of the outdoor heat converter 180 that will illustrate.
Dividing plate 150 is with control box 140,140 ' the same left and right sides that is installed in central bracket 136 separately.And, such dividing plate 150 by the horizontal part 150 that rearward forms from central bracket 136 ' and from horizontal part 150 ' the rear end rake 150 that specified angle forms that tilts downwards " constitute.
In the dividing plate 150, the horizontal part 150 of left side dividing plate 150 ' on be formed with air guide holes 152.The upside of such air guide holes 152 is equipped with air pilot cap 154.Air pilot cap 154 constitutes sealing the place ahead and top and opens the structure at rear, rearward guides from the air of heat release fan 148 forced air supplies that are installed in its underpart.
The top outward appearance of off-premises station 100 is formed by top panel 160.Top panel 160 has four jiaos of writing board shapes and in its left and right sides mounted in pairs.And, be formed with passage 162 on the top panel 160, and the edge of passage 162 prolongs downwards and forms drum type ring cover 164.Ring cover 164 is caught up with panel 160 whole formation, and preferably makes of plastic material.
The installed inside of ring cover 164 has blowing fan 170.Blowing fan 170 is driven by the fan electromotor 172 of bottom and rotates, and discharges inner air upward.That is, according to from outside turn-on power, fan electromotor 172 produces revolving forces, and fixing blowing fan 170 rotations on rotating shaft one end of the fan motor 172 that follows the wind are thus discharged air upward.
The bottom installation room outer heat-exchanger 180 of plate 160 in the above.Outdoor heat converter 180 is both sides, front and back, the bottom mounted in pairs of plate 160 in the above, makes inner mobile refrigerant carry out heat exchange with extraneous air.That is, outdoor heat converter 180 is made of front heat exchanger 182 that is installed in top panel 160 leading section downsides and the back heat exchanger 184 that is installed in top panel 160 rearward end downsides.
The Lower Half of front heat exchanger 182 is rearward crooked.That is, the Lower Half of front heat exchanger 182 prolongs the vertical component effect 182 of certain-length ' and " constitute from the rake 182 of vertical component effect 182 ' lower end tilted rearward specified angle downwards by the leading section from front panel 112.
Thus, rake 182 " the lower end and the lower end of back heat exchanger 184 adjoin each other, and the lower end of such outdoor heat converter 180 is with the distance of the appointment of being separated by between the chassis 110.In addition, the side of outdoor heat converter 180 also be formed with to each position distribute conduit tube component 180 from compressor 120,120 ' supply refrigerant '.
In addition, the inside of outdoor heat converter 180 is provided with the heat-exchanger temperature sensor 180a that detects heat exchanger temperature, and the outside also is provided with the outdoor temperature sensor 180b that detects external temperature.
And the lower end downside of outdoor heat converter 180 is equipped with drip tray 186.Drip tray 186 direction to the left and right forms more longways and assembles the condensate water that generates from outdoor heat converter 180, discharges condensate water to the side then.
Left-hand end and right-hand end are equipped with side panel 188 on chassis 110.Side panel 188 forms the side outward appearance of off-premises stations 100, and in the both sides, front and back of bottom each self-forming conduit access hole 188 '.
The upper end of grid 190 in the back, top, back bracket 194 direction to the left and right forms more longways.Top, back bracket 194 is installed in the bracing frame 174 " rear ends of the upper end anterior support motor base 174 of above-mentioned back grid 190.
In addition, rear support 196 is installed on the angle, rear end on chassis 110.Rear support 196 direction up and down forms more longways, supports back grid 190 and rear board 192 and top panel 160.
Below, with reference to the effect of Fig. 7 to Figure 14 explanation according to multi-split air conditioner of the present invention.
On one off-premises station 100, connect a plurality of indoor sets 200 as mentioned above according to air-conditioner of the present invention, and move a part or all indoor sets 200 according to user's selection.
If air-conditioner running (cooling operation), outdoor LEV102 is open, and refrigerant flows between off-premises station 100 and indoor set 200.
At first, the refrigerant that 100 li of off-premises stations are described flows.The gas that flows into from indoor set 200 flows into 132 li in oil storage tank through cross valve 124.The gas coolant that comes out from oil storage tank 132 flows into compressor 120,120 ' lining.In addition, when supply with compressor 120,120 ' cold medium shortage or compressor 120,120 ' overheated the time, supply with refrigerant from coolant injection device 120a.
Compressor 120,120 ' compression refrigerant discharge from outlet, and by oil eliminator 122.And refrigerant makes lubricating oil be recovered to compressor 120,120 ' lining by oil return pipe 123 in 122 li separation of above-mentioned oil eliminator fuel-displaced [oil].
That is, oil [oil] is blended in the refrigerant in compressor 120,120 ' compression refrigerant process, is gaseous state but such oil is liquid condition and refrigerant, so be 122 li each self-separations of oil eliminator at gas-liquid separator.
In addition, the lubricating oil of both sides compressor 120,120 ' inside by connect constant speed compressor 120 and frequency-changeable compressor 120 ' oil equalizing pipe 121, keep equilibrium.
Refrigerant by oil eliminator 122 passes through 180 li of cross valve 124 inflow outdoor heat exchangers.Outdoor heat converter 180 plays condenser (during refrigeration mode) effect, so refrigerant is liquid coolant by carrying out heat exchange with extraneous air, being cooled into.Refrigerant by outdoor heat converter 180 further cools off through supercooling machine 130 time.
The drying machine (131) of moisture flows into 200 li of indoor sets by the general pipe 210 of liquid afterwards in the refrigerant process removal refrigerant of process supercooling machine 130.In addition, by compressor 120,120 ' refrigerant in, a part flows into 100 li of another off-premises stations by the general pipe of high-low pressure 214.
180 li of off-premises station 100 outdoor heat converters that the refrigerant inflow of supplying with to another off-premises station 100 by the general pipe 214 of high-low pressure shuts down, make refrigerant pressure reach balanced on the whole, also can carry out certain heat exchange by off-premises station 100 outdoor heat converters 180 that shut down simultaneously.
If the general pipe 210 of the liquid that passes through is supplied with refrigerant to indoor set 200, refrigerant is by 200 li of each indoor sets in the middle of the liquid branch pipe 210 ' inflow running of coming out from the general pipe of liquid 210 branches.And such refrigerant carries out heat exchange for 202 li in expansion valve 204 decompressions and at indoor heat converter.At this moment, indoor heat converter 202 plays a part evaporimeter, so refrigerant is converted to low-pressure gas by heat exchange.
The refrigerant of discharging from indoor heat converter 202 flows into 100 li of off-premises stations then through gas branch pipe 212 ' assemble at the general pipe 212 of gas." refrigerant that flows into off-premises station 100 enters into 132 li of fluid reservoirs through cross valve 124 by general pipe 212 of gas and outdoor flue 212.
At fluid reservoir 132, the refrigerant of the evaporated liquid that is not able to do in time state filters, have only the refrigerant of gaseous state to separate to supply to above-mentioned compressor 120,120 '.Thus, finish a circulation (cycle) through process.
In addition, in the time of the air conditioner heat-production mode operation, refrigerant flows to foregoing opposite direction, and the indoor LEV206 of indoor set 200 opens, and regulates coolant quantity in indoor LEV102.
The air that the following describes 100 li of off-premises stations flows.According to power turn-on, fan electromotor 172 drives, rotation blowing fan 170.If blowing fan 170 rotations, air outside flows into inner by front grid 114 and back grid 190.
The inflow air of off-premises station 100 inside carries out heat exchange when passing through outdoor heat converter 180.At this moment, if the air-conditioner cooling operation, air outside is accepted heat from outdoor heat converter 180 and is become high temperature air, if opposite air conditioner heat-production running, air outside is transmitted heat to outdoor heat converter 180 and become Cryogenic air.
Air by outdoor heat converter 180 is by blowing fan 170 forced air supply upward.At this moment, ring cover 164 guiding air are discharged air upward.
In addition, 130 li coolings once more of carrying out refrigerant of the supercooling machine on 110 upper right bottoms, chassis.Promptly, the part of supercooling machine 130 is discharged liquid coolant and is flowed into contrary transfer tube 130 ' lining, after through supercooling expansion valve 130 ' a the time, further being cooled, at outdoor liquid line 210 " around in the adverse current from outdoor liquid line 210 " inner working fluid refrigerant accepts heat, the cooling refrigerant.
And according to the refrigerant temperature of supercooling outlet sensor 130 ' c perception, the degree of opening of control supercooling expansion valve 130 ' a makes the refrigerant temperature that flows into indoor set 200 drop to the desired temperature of user.
Such scope of the invention is not limited among the above-mentioned illustrative embodiment, but those skilled in the art can produce the various deformation example of the present invention for the basis in above-mentioned technical scope.
Claims (6)
1, a kind of outdoor machine system of air-conditioner, the inflow refrigerant that it is characterized in that off-premises station is in compressor compresses, the discharge refrigerant of compressor carries out heat exchange and is converted to liquid coolant at outdoor heat converter, the discharge refrigerant of outdoor heat converter supplies in the indoor set reduce temperature through the supercooling machine time after, the discharge refrigerant of compressor can flow in another off-premises station by the general pipe of high-low pressure, and the supercooling machine constitutes by having the dual pipe of designated length.
2, the outdoor machine system of air-conditioner according to claim 1 is characterized in that the supercooling machine by the inside tube that is communicated with outdoor heat converter and the guiding liquids refrigerant flows, constitutes in the outboard tube that the outside of inside tube forms and the guiding gas coolant flows.
3, the outdoor machine system of air-conditioner according to claim 2, the flow direction of the refrigerant that flows in it is characterized in that in the inside tube flowing refrigerant and the outboard tube is opposite.
4, the outdoor machine system of air-conditioner according to claim 2, the discharge refrigerant that it is characterized in that outboard tube is through flowing in the compressor behind the fluid reservoir.
5, the outdoor machine system of air-conditioner according to claim 2 is characterized in that a side of supercooling machine is formed with the contrary transfer tube of the part inflow refrigerant of outside side pipe guiding indoor set.
6, the outdoor machine system of air-conditioner according to claim 5 is characterized in that being equipped with on the contrary transfer tube and will be converted to the supercooling expansion valve of cryogenic gas refrigerant after the liquid coolant expansion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093634 CN1782554A (en) | 2004-11-29 | 2004-11-29 | Outdoor unit system of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093634 CN1782554A (en) | 2004-11-29 | 2004-11-29 | Outdoor unit system of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1782554A true CN1782554A (en) | 2006-06-07 |
Family
ID=36773028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410093634 Pending CN1782554A (en) | 2004-11-29 | 2004-11-29 | Outdoor unit system of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1782554A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072528A (en) * | 2009-11-20 | 2011-05-25 | 三星电子株式会社 | Air conditioner and outdoor unit thereof |
-
2004
- 2004-11-29 CN CN 200410093634 patent/CN1782554A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072528A (en) * | 2009-11-20 | 2011-05-25 | 三星电子株式会社 | Air conditioner and outdoor unit thereof |
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