CN106594904A - Refrigerating heat pump type frostless air conditioner outdoor unit - Google Patents
Refrigerating heat pump type frostless air conditioner outdoor unit Download PDFInfo
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- CN106594904A CN106594904A CN201510660207.6A CN201510660207A CN106594904A CN 106594904 A CN106594904 A CN 106594904A CN 201510660207 A CN201510660207 A CN 201510660207A CN 106594904 A CN106594904 A CN 106594904A
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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
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Other Air-Conditioning Systems (AREA)
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Abstract
The invention discloses a refrigerating heat pump type frostless air conditioner outdoor unit which comprises an outdoor unit shell, an evaporator, a draught fan, a middle partition plate, a compressor and frequency conversion electric control module space, a frequency conversion electric control box and a compressor. The refrigerating heat pump type frostless air conditioner outdoor unit is characterized in that an air inlet of an induced air way is arranged at an air outlet of the draught fan, the plane formed by the air outlet of the draught fan serves as the projection plane; an overlapped plane is formed by the plane formed by the air inlet of the induced air way and the projection of the plane formed by the air outlet of the draught fan on the projection plane; the induced air way penetrates the middle partition plate to communicate with the compressor and frequency conversion electric control module space; an air collecting hood is arranged on the outdoor unit shell of the compressor and frequency conversion electric control module space; the air collecting hood is connected with a heating air supply air pipe; and discharged air of the draught fan enters the compressor and frequency conversion electric control module space through the induced air way, flows through the compressor and the frequency conversion electric control box, then enters the air collecting hood and is conveyed to the air inlet side of the evaporator through the heating air supply air pipe to flow out. The refrigerating heat pump type frostless air conditioner outdoor unit has the beneficial effects that frostless heating is achieved, cooling of a compressor frequency conversion electric control module is achieved, the evaporation heating amount is larger, and the air conditioner energy efficiency is high.
Description
Technical field
The invention belongs to air-conditioning technique field, only relates to a kind of frostless air-conditioner outdoor unit of refrigerating heat pump type.
Background technology
Existing refrigerating heat pump type air-conditioning includes indoor set and off-premises station, and during refrigeration, indoor set is vaporizer, and indoor set evaporation endothermic, off-premises station are condenser, condenses heat release；Conversely, indoor set is condenser when heating, heat release is condensed, off-premises station is vaporizer, evaporation endothermic.Condenser, vaporizer are referred to as heat exchanger.Off-premises station is generally divided into two spaces by median septum by air-conditioner outdoor unit, a space positioned at median septum side arranges blower fan and heat exchanger, the present invention is referred to as blower fan and heat exchanger space, space is relatively large, unlimited open state is in outside blower fan inlet and outlet and off-premises station, and a space of median septum opposite side arranges compressor and electronic control module, the present invention is referred to as compressor and electronic control module space, space is relatively small, compressor and electronic control module space surrounding are enclosed with outdoor machine shell by median septum, with closed state is lain substantially in outside outdoor set cabinet, if convertible frequency air-conditioner, electronic control module also includes frequency-variable module.Frequency conversion electrical control module is arranged in frequency conversion electrical control box; no matter freeze or heat; during operation of air conditioner; compressor and frequency conversion electrical control module will produce amount of heat; the heat that especially frequency-variable module is produced is bigger; it is that whole off-premises station produces the maximum position of temperature highest quantity of heat production; as radiated not in time; frequency conversion electrical control module cannot normal work even burn; compressor performance and service life can be also affected when compressor temperature is too high; over-temperature protection device can be all triggered when frequency-variable module and too high compressor temperature, forces air-conditioning out of service, affect air-conditioning to use.Radiate therefore must to frequency conversion electrical control module and compressor, usual frequency conversion electrical control module adopts both radiating modes：1, air-cooled radiator radiating is set on the frequency conversion electrical control box that frequency conversion electrical control module is set, radiator can against median septum design in blower fan and heat exchanger side, electric-controlled box is erected on median septum, but electric-controlled box major part is still located at compressor and frequency conversion electrical control module side, radiator can also against median septum and be arranged on compressor and electronic control module side, no matter radiator is arranged on that side of median septum, the negative pressure pressure reduction formed when being all and being operated by blower fan, so that outdoor air discharges off-premises station by blower fan by radiator or compressor and electronic control module side air Jing heat exchanger after radiator heat exchange radiating；2, frequency conversion electrical control module heat dissipating is cooled down by arranging coolant loop, and compressor is usually natural heat dissipation and arranges heat abstractor radiating, above-mentioned radiating mode, all it is the heat dissipation that frequency conversion electrical control module and compressor are distributed to outside off-premises station, the heat that frequency conversion electrical control module and compressor are distributed is that, by electric energy to be consumed, this part energy is directly discharged outside off-premises station, has wasted energy.When frequency conversion electrical control module in existing convertible frequency air-conditioner adopts wind-cooling heat dissipating，In completely open state outside blower fan and heat exchanger sections and off-premises station，For the needs of sufficient heat exchange，Heat exchanger air intake surface needs to be designed to larger，So the negative-pressure inlet region that blower fan is formed when operating is very big，For whole heat exchanger air intake surface，And radiator only accounts for wherein small part，And it is located at the less marginal area of fan blade inlet side air intake flow，Thus flow through the air quantity very little of radiator，Wind-cooling heat dissipating efficiency is very low，Especially when summer environment temperature is higher，Frequency conversion electrical control module often radiates bad，Easily cause whole system overheat protector during long-time hot operation and out of service，Frequency conversion electrical control module is run service life for a long time under such conditions and can be shortened，Can even burn out，And coolant cooling frequency conversion electrical control module，Temperature difference when refrigerant temperature is worked with frequency conversion electrical control module is very big，Easily condensation is formed on frequency conversion electrical control Modular surface and automatically controlled circuit board，So as to bring the hidden danger of frequency conversion electrical control module circuitry plate short circuit.During air-conditioning heating, vaporizer section of jurisdiction surface can produce condensation water, and when ambient air temperature is less than 5 DEG C, condensation water will condense into Bao Shuan, ambient temperature is lower, frosting is more serious, or even can produce thick frost, and frosting and frost can reduce and block air duct between fin, increase air flow resistance, cause evaporation and heat-exchange ability drastically to decline, or even air-conditioning can be caused to quit work to heat, it is therefore necessary to arrange defroster defrosting.The common Defrost method of air-conditioning has four-way change-over valve to defrost, hot gas bypass defrosting, and electrothermal component defrosts three kinds.Four-way change-over valve defrosts to interrupt and heats, hot gas bypass defrosting can be reduced to indoor heat supply, compressor can be directed at liquid hit phenomenon reduction compressor performance occur or even damage compressor when outside air temperature is relatively low, and electrothermal component defrosting effect is good, be not in that first two is interrupted heat supply or reduces the situation of heat supply, but electrothermal component defrosts, power consumption is larger, and defrosting expense cost is higher.Additionally, it is also a problem for being difficult to accurate control when to start defrosting, defrost too late, on vaporizer, frost layer is too thick, and air channel obstruction between fin, air quantity are reduced, and system heating efficiency declines, and consuming energy increases；Defrosting is too early, and on vaporizer, also non-frosting or a small amount of frosting, will increase defrosting frequency, will also result in the decline of system heating efficiency, increases power consumption.
The content of the invention
1, it is an object of the invention to provide a kind of frostless air-conditioner outdoor unit of refrigerating heat pump type, after starting of air conditioner work, in the case of guaranteeing that air-conditioning does not interrupt and do not reduce and normally heat, particularly off-premises station vaporizer can be made to exempt frosting in the situation for not increasing energy consumption and become frostless air-conditioning, it is difficult to which accurately the problem of control startup defrosting time is also just readily solved.
2, not increasing energy consumption can improve the efficiency of air-conditioning, power and energy saving to the offer of off-premises station vaporizer moment higher than the air intake of ambient temperature so as to improve the evaporation efficiency of vaporizer so that air-conditioning heating amount is increased.
3, do not increase energy consumption to lower the temperature to compressor and frequency conversion electrical control module heat dissipating, so that compressor and frequency conversion electrical control module are outer in a comparatively ideal operating mode all the time, compressor and frequency conversion electrical control module work efficiency are effectively improved so as to improve the efficiency of air-conditioning, compressor and frequency conversion electrical control module normal service life is also ensure that.
The goal of the invention of the present invention is accomplished by：A kind of frostless air-conditioner outdoor unit of refrigerating heat pump type, including outdoor set cabinet, vaporizer, blower fan, median septum, compressor and frequency conversion electrical control module volume, frequency conversion electrical control box, compressor is characterized in that：In fan outlet, air inducing air inlet of air duct is set, the plane formed with fan outlet is as perspective plane, projection of the plane formed with fan outlet by the plane formed by air inducing air inlet of air duct on the perspective plane forms faying surface, air inducing air channel is communicated through median septum with compressor and frequency conversion electrical control module volume, in the outdoor set cabinet of compressor and frequency conversion electrical control module volume, wind-collecting cover is set, wind-collecting cover connection heats air-supply airduct, blower fan air-out enters compressor and frequency conversion electrical control module volume by air inducing air channel, flow through compressor, after frequency conversion electrical control box, vaporizer inlet side outflow is transported to by air-supply airduct is heated into wind-collecting cover.
What the goal of the invention of the present invention can also be realized by such mode：A kind of frostless air-conditioner outdoor unit of refrigerating heat pump type, including outdoor set cabinet, condenser, blower fan, median septum, compressor and frequency conversion electrical control module volume, frequency conversion electrical control box, compressor is characterized in that：In fan outlet, air inducing air inlet of air duct is set, the plane formed with fan outlet is as perspective plane, projection of the plane formed with fan outlet by the plane formed by air inducing air inlet of air duct on the perspective plane forms faying surface, air inducing air channel is communicated through median septum with compressor and frequency conversion electrical control module volume, refrigeration exhaust air flue is set between compressor and outdoor set cabinet side plate, refrigeration exhaust air flue air outlet is communicated through outdoor set cabinet with off-premises station space outerpace, blower fan air-out enters compressor and frequency conversion electrical control module volume by air inducing air channel, flow through compressor, after frequency conversion electrical control box, off-premises station is discharged into refrigeration exhaust air flue.
The present invention is in the plane formed with fan outlet as perspective plane, when projection of the plane formed with fan outlet by the plane that formed to air inducing air inlet of air duct on the perspective plane forms the setting of faying surface, faying surface area is more than the 20% of the projected area of plane that fan outlet formed on the perspective plane.
The present invention is provided with electrothermal tube in wind-collecting cover.
The present invention refrigeration exhaust air flue and wind-collecting cover on be provided with can open and close air door.
Wind-collecting cover of the present invention and air-supply airduct are made using light weight, fast, corrosion resistant aluminum alloy material of conducting heat.
The present invention is provided with refrigeration exhaust air flue dividing plate between compressor and outdoor set cabinet side plate.
During air-conditioning heating，Refrigeration exhaust air flue air door is closed，Wind-collecting cover door opening，Off-premises station blower fan starts，The heat release Jing after vaporizer heat exchange of air outside the off-premises station of suction turns cold and becomes cold air，Then off-premises station is discharged by blower fan，The air that blower fan is discharged carries stronger blast，Thus portion of air therein will flow the air inducing air inlet of air duct of air inlet fan air outlet setting，Collect into compressor and frequency conversion electrical control module volume in Jing air inducing air channel，Flowing through compressor，During frequency conversion electrical control box，Absorb compressor case，Heat heating on frequency conversion electrical control box becomes hot-air，The exhaust air flue air door that now freezes is closed，Wind-collecting cover then becomes compressor and the unique air-out passage of frequency conversion electrical control module volume，Hot-air will collect stream enter wind-collecting cover Jing heat air-supply airduct be transported to vaporizer inlet side discharge，Mixing air is formed after mixing with the air outside blower fan and vaporizer space，The mixing air temperature of formation is higher than the air outside blower fan and heat exchanger space，That is ambient air temperature，Mixing air is sucked by blower fan，Off-premises station is discharged after flowing through evaporation tube and heat-exchange fin on vaporizer，Temperature flows through the evaporation tube and heat-exchange fin evaporation heat exchange on vaporizer higher than the mixing air of ambient air temperature，Improve the evaporation efficiency of vaporizer，Improve heating capacity，At the same time，Above-mentioned absorption compressor case，Heat heating on frequency conversion electrical control box becomes hot-air，Play to compressor，The effect of frequency conversion electrical control module heat dissipating cooling.
During air-conditioning heating, vaporizer section of jurisdiction surface can produce condensation water, when ambient air temperature is less than 5 DEG C, vaporizer section of jurisdiction surface temperature can be less than 0 DEG C, condensation water will condense into Bao Shuan, therefore, when air-conditioning is heated less than 5 DEG C in ambient air temperature, as long as ambient temperature is not low when the mixing air temperature formed after the above-mentioned air with outside blower fan and vaporizer space mixes is changed more than 0 DEG C, eliminate the need on off-premises station vaporizer, producing the possibility of frosting, frostless the heating of air-conditioning and become frostless air-conditioning, now will not only interrupt or reduce to indoor heating, and the mixing air due to temperature higher than ambient air temperature flows through evaporator evaporation heat exchange, improve the evaporation energy of vaporizer, can also increase to indoor heat supply；When the ambient temperature for more cold climate occur causes the temperature of mixing air to be less than 0 DEG C, as the temperature of mixing air is consistently higher than ambient temperature, white icing can be coagulated while in being less than in 0 DEG C of environment in off-premises station vaporizer section of jurisdiction surface, but the speed that solidifying frost freezes will be substantially reduced, so as to reduce the open frequency and defrosting time of subsidiary defrosting device, power and energy saving.The present invention is by arranging electrothermal tube mode in wind-collecting cover, raising flows through the air themperature of wind-collecting cover and comes for the defrosting of vaporizer section of jurisdiction surface, open frequency and defrosting time due to reducing subsidiary defrosting device, under identical operating mode, the electrothermal tube defrosting power consumption of the present invention is reduced, defrosting time is short and speed is fast, the comfort level of user when improve air-conditioning heating.No matter air-conditioning is also above heating under 5 DEG C of ambient temperature less than 5 DEG C in air themperature, the present invention flows through the temperature that the temperature of the mixing air of vaporizer is always above surrounding air, so that the evaporation efficiency of off-premises station is improved, heat efficiency, power and energy saving are improve.
During air conditioner refrigerating，Refrigeration exhaust air flue door opening，Wind-collecting cover air door is closed，Under off-premises station fan action，Heat absorption after the condensed device heat exchange of air outside off-premises station becomes hot-air，Off-premises station is discharged by blower fan，Temperature improves into hot-air to the air of off-premises station as early as possible，But the temperature of hot-air is consistently lower than more than 12 DEG C of frequency conversion electrical control box surface temperature，More below compressor case surface temperature，The temperature of hot-air that I guess allow the temperature at 43 DEG C of highest use environment temperature also only at 52 DEG C or so in air conditioning condition，And compressor case surface temperature now is up to 100 DEG C or so，Frequency-variable module temperature in frequency conversion electrical control box can be close to 75 DEG C of the limit of working temperature of frequency-variable module，Therefore，Hot air temperature is still far below compressor case and the temperature on frequency conversion electrical control box surface，The air inducing air inlet of air duct arranged by fan outlet by a part of hot-air that blower fan is discharged，Collect into compressor and become automatically controlled module volume in Jing air inducing air channel，Through compressor，During frequency conversion electrical control box，It is absorbed by compressor case，Heat on frequency conversion electrical control box becomes hotter hot-air，Now wind-collecting cover is closed，Exhaust air flue of then freezing becomes compressor and the unique air-out passage of frequency conversion electrical control module volume，Hot-air will flow out off-premises station by exhaust air flue of freezing，It is reached for the purpose of compressor and frequency conversion electrical control box radiating and cooling，Compressor and frequency conversion electrical control box obtain radiating and cooling，So that the frequency conversion electrical control components and parts on compressor and frequency conversion electrical control box are run under a suitable temperature case all the time，Improve compressor and frequency conversion electrical control components and parts performance and used life.
If air-conditioning uses the combustible refrigerant system such as R290 of day by day popularization and application，After the refrigerant line generation leakage in compressor of outdoor unit and frequency conversion electrical control module volume or the various tiny leakages for being tightly connected place being difficult to avoid that are accumulated to finite concentration，Combustible refrigerant enters frequency conversion electrical control box，It is possible to occur the sparking of the electronic devices and components in frequency conversion electrical control box to ignite the crisis of blast，The air-conditioning of the present invention，No matter heat or during refrigerating operaton，The air inducing air inlet of air duct for always having the portion of air for discharging blower fan to arrange by fan outlet，Collect into compressor and frequency conversion electrical control module volume，Through compressor，Off-premises station is discharged after frequency conversion electrical control box，If generation cold-producing medium is leaked，The cold-producing medium of leakage also will be discharged off-premises station at any time，There is the hidden danger that leakage may set off an explosion so as to eliminate combustible refrigerant system air conditioner off-premises station.
The air inducing air channel of the present invention is communicated through median septum with compressor and frequency conversion electrical control module volume, is also designed to bypass median septum and is communicated with compressor and frequency conversion electrical control module volume, both there is no substantive difference.Air inducing air channel has air inlet and air outlet, air inducing air channel is communicated through median septum with compressor and frequency conversion electrical control module volume, namely air inducing duct outlet is communicated with compressor and frequency conversion electrical control module volume, in fan outlet, air inducing air inlet of air duct is set, refer to air inducing air inlet of air duct against fan outlet, fan outlet refers to that the cross section of blower fan exhaust air flue vertical with blower fan air-out direction during fan air channel is discharged in blower fan air-out, the air port formed by the blower fan exhaust air flue cross section is the fan outlet of indication in the present invention, when air inducing air inlet of air duct is arranged in blower fan exhaust air flue, the cross section of the blower fan exhaust air flue at the as blower fan air-out of fan outlet now and air inducing air inlet of air duct foremost contacting position, the essence that this kind is arranged is identical with fan outlet setting air inducing air inlet of air duct.Blower fan exhaust air flue and the air inducing air channel mode cross section shape communicated with compressor and frequency conversion electrical control module volume through median septum may be designed as circle, square, the other shapes such as rectangle, as long as it is smooth to meet ventilation.
In the plane formed with fan outlet as perspective plane, when projection of the plane formed with fan outlet by the plane formed by air inducing air inlet of air duct on the perspective plane forms faying surface, faying surface can be that the part perspective plane in two projections overlaps, or the perspective plane formed by air inducing air inlet of air duct has been forgiven on perspective plane of the plane that formed of fan outlet on the perspective plane.Without faying surface，The air quantity that air inducing air inlet of air duct introduces fan outlet is very little，Air quantity into compressor and frequency conversion electrical control module volume is very little，Even without introduction air quantity，The goal of the invention of the present invention cannot be reached，Faying surface is formed only，Air inducing air inlet of air duct could introduce the air quantity of fan outlet，Could start to realize the goal of the invention of the present invention，If the air quantity that air inducing air inlet of air duct introduces fan outlet is too small，Into after compressor and frequency conversion electrical control module volume，It is impossible to and compressor and frequency conversion electrical control module sufficient heat exchange，The effect for reaching present invention invention is just poor，Projected area of the plane for only being formed more than fan outlet in above-mentioned faying surface area on the perspective plane more than 20% when，Air inducing air inlet of air duct could introduce the larger air-out volume of fan outlet，Into after compressor and frequency conversion electrical control module volume，Could be with compressor and frequency conversion electrical control module sufficient heat exchange，Invention improving eyesight and invention effect of the present invention on the premise of energy consumption is not increased could preferably be reached，The faying surface of formation is bigger，The blower fan air output that air inducing air inlet of air duct is introduced is bigger，Realize that the goal of the invention on the premise of energy consumption is not increased and invention effect of the present invention are also better，But faying surface need not be as big as to the 100% of the projected area of plane that fan outlet formed on the perspective plane，The i.e. perspective plane formed by air inducing air inlet of air duct is identical with the perspective plane formed by fan outlet，Now，The air-out of fan outlet is all introduced by air inducing air inlet of air duct，Air with compressor and frequency conversion electrical control box heat exchange is air quantity that need not be so big，The present invention recommends the 60% of the projected area of plane that faying surface formed less than fan outlet on the perspective plane.Just because of this design of the present invention, take full advantage of fan outlet air-out blast it is stronger the characteristics of, so that the air output of the fan outlet of air inducing air inlet of air duct introduction is larger, so as to without the need for arranging special air inducing fan air inducing in addition, so as to bring do not increase energy consumption on the premise of achieve that goal of the invention and reach the advantage of better effects.
In the outdoor set cabinet of compressor and frequency conversion electrical control module volume, wind-collecting cover is set, also wind-collecting cover can be set in median septum or compressor and other positions of frequency conversion electrical control module volume, be all up for air the substantive purpose that air-supply airduct is transported to the outflow of vaporizer inlet side being heated by what is be connected with wind-collecting cover.
The air-supply airduct of the present invention is for middle for rectangle，Two ends are semicircular oblate pipe，Oblate pipe is arranged around vaporizer heat pipe，Generally vaporizer heat pipe is one group of " C " type arranged in parallel，Oblate pipe is also configured as one group of " C " type arranged in parallel，The fin arrangement being close on vaporizer heat pipe，Flat horizontal surface in the middle of oblate pipe is parallel with the air-flow direction into vaporizer，Oblate pipe is arranged in same horizontal line with heat pipe in vaporizer，Rectangular minor face in the middle of oblate pipe is grown up to identical with vaporizer heat pipe diameter，Oblate pipe arranges the half that quantity is heat pipe number on vaporizer，One one, interval ground surrounds vaporizer heat pipe，The air-supply airduct for so arranging would not increase vaporizer air intake windage，Oblate pipe one is connected with wind-collecting cover insertion，Close other end，On the flat horizontal surface of oblate pipe it is uniform on open up one group or array heats air-supply airduct air outlet，The quantity in every group of air port is not limited，It is proposed that air port is circle，A diameter of 3mm，An air port is opened up per 20mm，The setting of such oblate pipe，Wind-collecting cover will be introduced through the mixing air for coming equably to shunt on the outer surface of whole vaporizer section of jurisdiction inlet side by the air port on oblate pipe，Guarantee that each position of vaporizer can all obtain substantially uniform mixing air air intake.Air-supply airduct is alternatively elliptical tube and pipe, and other settings are similar with above-mentioned oblate pipe, and risen function is substantially the same with oblate pipe air-supply airduct.
One refrigeration exhaust air flue dividing plate is set between compressor and outdoor set cabinet side plate，Dividing plate is closed with casing top cover and chassis up and down，Dividing plate is while be connected with outdoor set cabinet，Width extended frequency conversion electrical control box，Air outlet is opened up in outdoor set cabinet between refrigeration exhaust air flue dividing plate and outdoor set cabinet side plate，So，Exhaust air flue of freezing is formed between refrigeration exhaust air flue dividing plate and outdoor set cabinet side plate，Refrigeration exhaust air flue dividing plate play guiding air fully with compressor，Frequency conversion electrical control box enters wind-collecting cover after carrying out heat exchange or enters the effect of refrigeration exhaust air flue，When heating，The air collected into compressor and electronic control module space is changed flow direction and leads into wind-collecting cover by refrigeration exhaust air flue dividing plate，During refrigeration，After refrigeration exhaust air flue dividing plate flows to the air change collected into compressor and electronic control module space Jing compressor to frequency conversion electrical control box，Turn round to turn back off-premises station is discharged into refrigeration exhaust air flue.
Wind-collecting cover is arranged on the rear backplate of the outdoor set cabinet for being relatively distant from air inducing air channel, wind-collecting cover collection air port is designed to a little bigger as far as possible, be easy to flow through the air for coming and collect without resistance and enter wind-collecting cover, wind-collecting cover and air-supply airduct can, corrosion resistant aluminum alloy material fast using light weight, heat transfer make.Arrange in refrigeration exhaust air flue and wind-collecting cover can open and close air door and electrothermal tube start and stop be controlled to known technology in Air-conditioner design field, the present invention do not repeat.
As a result of above-mentioned technical proposal, the invention has the advantages that and good effect：
1, during air-conditioning heating when ambient temperature is low, and the temperature that solidifying frost freezes can be produced to vaporizer, the present invention can cause that A/C evaporator is frostless to form for frostless air-conditioning at low ambient temperatures；The rate reduction for causing the solidifying frost of A/C evaporator to freeze in the case where ambient temperature is lower, reduces the open frequency and defrosting time of subsidiary defrosting device, improves the efficiency of air-conditioning heating, power and energy saving.
2, no matter air-conditioning is heated under which type of ambient temperature, and the temperature of the mixing air that the present invention flows through vaporizer is always above the temperature of surrounding air so that the evaporation efficiency of off-premises station is improved, and improves air-conditioning heating efficiency, increased heating capacity.
3, during operation of air conditioner, no matter heat or freeze, the present invention can give frequency conversion electrical control components and parts radiating and cooling in compressor and electric-controlled box in the case where energy consumption is not increased, and improve the performance and used life of compressor and frequency conversion electrical control components and parts.
4, the present invention is applied in combustible refrigerant system air conditioner, eliminates air-conditioner outdoor unit and the hidden danger that leakage may set off an explosion occurs, it is ensured that the safe handling of combustible refrigerant system air conditioner.
5, above-mentioned, the present invention causes that A/C evaporator is frostless forms for frostless air-conditioning at low ambient temperatures, the goal of the invention that the hidden danger that may set off an explosion is leaked to compressor and frequency conversion electrical control box radiating and cooling and the off-premises station generation of elimination combustible refrigerant system air conditioner is realized in the case of consuming energy without the need for increase all on the basis of existing air-conditioning, with the advantage that zero cost achieves the goal.
Description of the drawings
Accompanying drawing 1 is outdoor unit structure schematic diagram of the present invention.
Accompanying drawing 2 is wind-collecting cover of the present invention and air-supply airduct schematic diagram.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
Accompanying drawing 1, to heat air-supply airduct, 2 is electrothermal tube to 1 in accompanying drawing 2,3 is wind-collecting cover, and 4 is outdoor set cabinet, and 5 is frequency conversion electrical control box, 6 is compressor, 7 are refrigeration exhaust air flue, and 8 are refrigeration exhaust air flue dividing plate, and 9 is off-premises station median septum, 10 is air inducing air channel, 11 is blower fan, 12 vaporizers, and 13 to heat air-supply airduct air outlet.
During air-conditioning heating，Air-conditioner is powered and starts，The air door of refrigeration exhaust air flue 7 is closed，The door opening of wind-collecting cover 3，Compressor 6 starts，Heat the vaporizer 12 that the cold-producing medium in loop is entered in off-premises station 4，In the presence of blower fan 11，Suction air，The air of suction is when vaporizer 12，Absorbed heat，Cools air，The air for turning cold is discharged outside off-premises station by blower fan 11，The cold air that becomes for discharging blower fan 11 has stronger blast，The air inlet being arranged on the air inducing air channel 10 of 11 air outlet of blower fan，The air that part turns cold can be incorporated into 5 space of compressor 6 and frequency conversion electrical control module，Flow through compressor 6 and frequency conversion electrical control box 5，There is heat exchange with compressor 6 and frequency conversion electrical control box 5，The hot-air for absorbing the heat accumulated on compressor 6 and frequency conversion electrical control box 5 and becoming heating，After the hot-air of heating is collected by wind-collecting cover 3, Jing heats air-supply airduct 1 and flows out to airduct air outlet 13 of blowing is heated，The arrow heated on air-supply airduct air outlet 13 represents air port air-out and air-out direction，Heating after the air being inhaled into outside the hot-air and off-premises station of 13 outflow of air-supply airduct air outlet converges becomes mixing air，The temperature of mixing air will be above the temperature of the air being inhaled into outside off-premises station，It is higher than off-premises station ambient temperature，Mixing air is in the presence of blower fan 11，Through vaporizer 12，Absorbed heat，Mixing air turns cold，The mixing air for turning cold is discharged outside off-premises station by blower fan 11，So circulate，Air-conditioning is realized heating.Start electrothermal tube 2 when the temperature of mixing air is low when being not enough to suppress the section of jurisdiction on vaporizer solidifying white, raising flows through the air themperature of wind-collecting cover, so as to the temperature for improving mixing air to defrost for vaporizer section of jurisdiction surface.
During refrigeration，Air-conditioner is powered and starts，Refrigeration exhaust air flue door opening，Wind-collecting cover air door is closed，Compressor 6 starts，Vaporizer 12 becomes condenser，The condenser 12 that cold-producing medium in refrigerating circuit is entered in off-premises station 4，Air is sucked in the presence of blower fan 11，The air of suction is when condenser 12，Absorbed cold，Air heating becomes hot-air，Air is although temperature improves into hot-air，But the temperature of hot-air is still below the temperature on compressor case and frequency conversion electrical control box surface，Hot-air is discharged outside off-premises station by blower fan 11，The air inlet being arranged on the air inducing air channel 10 of 11 air outlet of blower fan，Part hot-air is incorporated into into 5 space of compressor 6 and frequency conversion electrical control module，When flowing through compressor 6 and frequency conversion electrical control box 5，There is heat exchange with compressor 6 and frequency conversion electrical control box 5，Absorb the heat accumulated on compressor 6 and frequency conversion electrical control box 5，Jing refrigeration exhaust air flues 7 discharge outdoor，So circulate，Reach the purpose of 5 radiating and cooling of compressor 6 and frequency conversion electrical control box.
Arrow in accompanying drawing represents air intake air-out and air inlet/outlet direction at this, and when dotted arrow is refrigeration, stream of hot air goes out the flow circuits of exhaust air flue that freeze, and the frequency conversion electrical control module in embodiment explanation is frequency conversion electrical control box.
Claims (4)
1. a kind of frostless air-conditioner outdoor unit of refrigerating heat pump type, including outdoor set cabinet, vaporizer, blower fan, median septum, compressor and frequency conversion electrical control module volume, frequency conversion electrical control box, compressor is characterized in that：In fan outlet, air inducing air inlet of air duct is set, the plane formed with fan outlet is as perspective plane, projection of the plane formed with fan outlet by the plane formed by air inducing air inlet of air duct on the perspective plane forms faying surface, air inducing air channel is communicated through median septum with compressor and frequency conversion electrical control module volume, in the outdoor set cabinet of compressor and frequency conversion electrical control module volume, wind-collecting cover is set, wind-collecting cover connection heats air-supply airduct, blower fan air-out enters compressor and frequency conversion electrical control module volume by air inducing air channel, flow through compressor, after frequency conversion electrical control box, vaporizer inlet side outflow is transported to by air-supply airduct is heated into wind-collecting cover.
2. a kind of frostless air-conditioner outdoor unit of refrigerating heat pump type, including outdoor set cabinet, condenser, blower fan, median septum, compressor and frequency conversion electrical control module volume, frequency conversion electrical control box, compressor is characterized in that：In fan outlet, air inducing air inlet of air duct is set, the plane formed with fan outlet is as perspective plane, projection of the plane formed with fan outlet by the plane formed by air inducing air inlet of air duct on the perspective plane forms faying surface, air inducing air channel is communicated through median septum with compressor and frequency conversion electrical control module volume, refrigeration exhaust air flue is set between compressor and outdoor set cabinet side plate, refrigeration exhaust air flue air outlet is communicated through outdoor set cabinet with off-premises station space outerpace, blower fan air-out enters compressor and frequency conversion electrical control module volume by air inducing air channel, flow through compressor, after frequency conversion electrical control box, off-premises station is discharged into refrigeration exhaust air flue.
3., according to claim 1 or the frostless air-conditioner outdoor unit of refrigerating heat pump type according to claim 2, it is characterized in that：The plane formed with fan outlet is as perspective plane, projection of the plane formed with fan outlet by plane that air inducing air inlet of air duct is formed on the perspective plane forms faying surface, and the 20% of projected area of the plane formed more than fan outlet by faying surface area on the perspective plane.
4. the frostless air-conditioner outdoor unit of refrigerating heat pump type according to claim 1, is characterized in that：Electrothermal tube is provided with wind-collecting cover.
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| CN201510660207.6A CN106594904A (en) | 2015-10-14 | 2015-10-14 | Refrigerating heat pump type frostless air conditioner outdoor unit |
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