CN205448013U - Air conditioning system - Google Patents
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- CN205448013U CN205448013U CN201521143886.1U CN201521143886U CN205448013U CN 205448013 U CN205448013 U CN 205448013U CN 201521143886 U CN201521143886 U CN 201521143886U CN 205448013 U CN205448013 U CN 205448013U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides an air conditioning system, refrigerant that air conditioning system used is flammable refrigerant, air conditioning system includes: automatically controlled box, the compressor, cross valve, outdoor heat exchanger, throttling arrangement and the indoor heat exchanger that circulate and communicate in proper order, first water conservancy diversion passageway and/or second water conservancy diversion passageway, a port of first water conservancy diversion passageway with air conditioning system's automatically controlled box is relative to be set up, another port with throttling arrangement sets up relatively, be used for with the heat that produces in the automatically controlled box working process is defeated lead to throttling arrangement department, a port of second water conservancy diversion passageway with the compressor sets up relatively, the other end is located throttling arrangement sets up relatively, be used for with the heat that produces in the compressor working process is defeated lead to throttling arrangement department. This technical scheme can in time solve the oil plug problem effectively and make the air conditioning system operation that returns to normal, and then avoid air conditioning system the phenomenon that the ability attenuates to appear because of oil plug.
Description
Technical field
This utility model relates to air-conditioning technical field, in particular to a kind of air conditioning system.
Background technology
At present, in technical field of air conditioner refrigeration, it is used mostly R410a cold-producing medium to substitute R22 cold-producing medium, it is with the obvious advantage is embodied on convertible frequency air-conditioner, but it is owing to the GWP (GlobalWarmingPotential, global warming potential) of R410a cold-producing medium is higher, the most serious at Present Global greenhouse effect, under the background of countries in the world reply global climate transition pay attention to day by day, it will gradually eliminated.Therefore, the more absorbed research low GWP cold-producing medium with R32 cold-producing medium, R290 cold-producing medium as representative at present, especially for this cold-producing medium almost not having any pollution of R290 cold-producing medium, simultaneously, the research and development of corresponding compressor are the most underway, particularly the lubricating oil research and development of new type compressor, are increasingly subject to pay attention to.
Lubricating oil in cooler compressor is extremely important to the properly functioning of system, and lubricating oil plays a part cylinder and rotor lubrication, seals and cool down.When compressor runs well, lubricating oil sucks cylinder by bent axle bottom compressor, after overcompression, the cold-producing medium with High Temperature High Pressure enters system, turning again to bottom compressor along with refrigerant cycle afterwards, the heat that compressor electric motor and cylinder produce simultaneously also can be taken away by cold-producing medium and lubricating oil.If owing to some reason causes oil return return-air smooth, will result in the problem such as compressor lubrication shortage of oil, motor idle running heating, abrasion increasing between compresser cylinder and rotor, internal temperature will be caused further too high, ultimately result in burn-down of electric motor, system crash.So when system designs, must ensure that lubricating oil can normally return compressor and motor heat is discharged timely.
nullBut，For combustible refrigerant R290 cold-producing medium，Its viscosity can sharply increase at low temperatures，Particularly in changes in temperature frequency changer，When defrosting terminates cross valve commutation，Super low temperature refrigeration agent and lubricating oil in vaporizer (indoor heat exchanger) need by throttling arrangement (such as，Electric expansion valve) enter condenser (outdoor heat exchanger)，Simultaneously combustible refrigerant because of security consideration charging amount less，Therefore the pressure ratio R410a cold-producing medium of air conditioning system、The pressure of the air conditioning system of R32 cold-producing medium is much smaller，Thus the oil blocking throttling arrangement that ratio of viscosities is bigger can be caused，Cause combustible refrigerant cannot participate in circulation，And then make compressor dally，Ability and operation power drop，System oil starvation lacks fluorine，The motor excessive heating of compressor after long time running，Greatly reduce the service life of compressor and system，Affect the use impression of user，The appearance of the most this problem also uses the air conditioning system of combustible refrigerant to cause the biggest impact for design.
Therefore, how when air conditioning system occurs oil stifled, solving the stifled problem of oil timely and effectively makes air conditioning system recover to run well, and then avoid air conditioning system that the phenomenon that ability decays occurs because oil blocks up, to ensure compressor and the service life of air conditioning system, improve the comfort of air conditioning system simultaneously, become technical problem urgently to be resolved hurrily.
Utility model content
This utility model is intended at least to solve one of technical problem present in prior art or correlation technique.
To this end, a purpose of the present utility model is to propose a kind of air conditioning system.
For achieving the above object, according to embodiment of the present utility model, it is proposed that a kind of air conditioning system, the cold-producing medium that described air conditioning system uses is combustible refrigerant, and described air conditioning system includes: electric-controlled box；Circulate the compressor of connection, cross valve, outdoor heat exchanger, throttling arrangement and indoor heat exchanger successively；First flow-guiding channel and/or the second flow-guiding channel；The Single port of described first flow-guiding channel and the electric-controlled box of described air conditioning system are oppositely arranged, another port is oppositely arranged with described throttling arrangement, at the heat transporting extremely described throttling arrangement that will produce in described electric-controlled box work process；The Single port of described second flow-guiding channel and described compressor are oppositely arranged, the other end is positioned at described throttling arrangement and is oppositely arranged, at the heat transporting extremely described throttling arrangement that will produce in described compressor operation.
nullAir conditioning system according to embodiment of the present utility model，Including: electric-controlled box，Circulate the compressor of connection successively、Cross valve、Outdoor heat exchanger、Throttling arrangement and indoor heat exchanger，Wherein，Electric-controlled box is used for driving compressor operating，And also include for by the heat transporting produced in electric-controlled box work process to the first flow-guiding channel of throttling arrangement and/or be used for the second flow-guiding channel of the heat transporting that produces in compressor operation to throttling arrangement，So，Can whether oil blocks up controls whether to open the first flow-guiding channel and/or the second flow-guiding channel according to air conditioning system，Such as，The control to its on off state can be realized by arranging switch in the first flow-guiding channel and/or the second flow-guiding channel，So that the internal heat produced in air conditioning system work process is used for as throttling arrangement heating，Air conditioning system is made to recover to run well efficiently solving the stifled problem of oil in time，And then avoid air conditioning system that the phenomenon that ability decays occurs because oil blocks up，To ensure compressor and the service life of air conditioning system，Improve the comfort of air conditioning system simultaneously，Promote Consumer's Experience.
Air conditioning system according to above-described embodiment of the present utility model, it is also possible to there is techniques below feature:
In technique scheme, preferably, described first flow-guiding channel and/or described second flow-guiding channel specifically for: when described air conditioning system default operating condition issue oil generation block up time, open in running order, with the heat transporting that will produce in described electric-controlled box and/or compressor operation accordingly at described throttling arrangement.
In this technical scheme, when the default operating condition of air conditioning system issue oil generation block up time, the first flow-guiding channel corresponding between electric-controlled box and/or compressor with the throttling arrangement of air conditioning system and/or the second flow-guiding channel then can be arranged on by unlatching, with will in electric-controlled box and/or compressor operation produce heat transporting to throttling arrangement, think that it heats, and then the combustible refrigerant in air conditioning system and compressor lubricant oil can be made through the smooth circulation circulation in air conditioning system of this throttling arrangement, effectively to ensure air conditioning system reliability of operation, and guarantee the service life of product.
In any of the above-described technical scheme, it is preferable that be placed with the power model driving described compressor operating in described electric-controlled box；And the Single port of the described first flow-guiding channel position corresponding with the described power model position of described electric-controlled box is oppositely arranged；And/or the described Single port of the second flow-guiding channel is oppositely arranged with air vent, gas returning port and/or the bottom of described compressor.
In this technical scheme, in order to avoid heat waste, the position of the port of the first guiding device of electric-controlled box side with the power model place in electric-controlled box to throttling arrangement, then can be oppositely arranged by the heat transporting of generation in more preferable electric-controlled box work process；And the port of the compressor side for the second flow-guiding channel, can be oppositely arranged bottom the air vent of compressor, gas returning port and/or compressor, solve, to throttling arrangement, the problem that air conditioning system oil is stifled with the heat transporting that will produce in compressor operation.
In any of the above-described technical scheme, it is preferable that also include: air-supply arrangement, described air-supply arrangement is arranged at described throttling arrangement, for by the blowing heat of described first flow-guiding channel and/or described second flow-guiding channel to described throttling arrangement.
In this technical scheme, air conditioning system also includes the air-supply arrangement being arranged at throttling arrangement, so that preferably the blowing heat of the first corresponding flow-guiding channel and/or the transmission of the second flow-guiding channel will be passed through by electric-controlled box and/or compressor to throttling arrangement, solve, to improve, the efficiency that air conditioning system oil is stifled, thus promote Consumer's Experience.
In any of the above-described technical scheme, preferably, when described air conditioning system includes described first flow-guiding channel and described second flow-guiding channel, same port is merged in the another port of described first flow-guiding channel and the another port of described second flow-guiding channel, to be oppositely arranged with described throttling arrangement.
In this technical scheme, when air conditioning system is provided with simultaneously for by the heat transporting produced in electric-controlled box work process to the first flow-guiding channel of throttling arrangement and be used for the heat transporting that produces in compressor operation to throttling arrangement the second flow-guiding channel time, then the port of the first flow-guiding channel of throttling arrangement side and the second flow-guiding channel can be merged into a port being oppositely arranged with throttling arrangement, so that the thermal source in air conditioning system to be concentrated transporting to throttling arrangement, improve and solve the efficiency that air conditioning system oil is stifled.
In any of the above-described technical scheme, it is preferable that the bottom of described compressor is provided with temperature-detecting device.
In this technical scheme, by the bottom of the compressor in air conditioning system, temperature-detecting device is set, can be used to when the air conditioning system using combustible refrigerant is in the duty easily occurring oil stifled, temperature bottom the compressor detected according to this temperature-detecting device judges whether air conditioning system occurs oil stifled, and then determines whether that opening the first flow-guiding channel and/or the second flow-guiding channel blocks up problem with the oil solving air conditioning system.
In any of the above-described technical scheme, it is preferable that be provided with pressure-detecting device and/or temperature-detecting device at the exhaust ports of described compressor and/or the gas returning port of described compressor.
In this technical scheme, by arranging pressure-detecting device and/temperature-detecting device at the exhaust ports of the compressor of air conditioning system and/or the gas returning port of compressor, can be used to when the air conditioning system using combustible refrigerant is in the duty easily occurring oil stifled, force value and/or temperature value at the exhaust ports of compressor detected according to this pressure-detecting device and/or temperature-detecting device and/or the gas returning port of compressor judge whether air conditioning system occurs oil stifled, and then determine whether that opening the first flow-guiding channel and/or the second flow-guiding channel blocks up problem with the oil solving air conditioning system.
In any of the above-described technical scheme, it is preferable that described compressor, described cross valve, described outdoor heat exchanger, described throttling arrangement and described indoor heat exchanger circulate connection successively by copper pipe.
In this technical scheme, by compressor, cross valve, outdoor heat exchanger, throttling arrangement and indoor heat exchanger are circulated connection successively by copper pipe, so that combustible refrigerant can in air-conditioning system pipeline flow circuit, realize the properly functioning of air conditioning system, in order to ensure user's request, improve air conditioning system reliability of operation.
In any of the above-described technical scheme, it is preferable that described throttling arrangement includes: electric expansion valve, capillary tube or choke valve.
In this technical scheme, throttling arrangement includes but not limited to: electric expansion valve, capillary tube or choke valve, the regulation to refrigerant flow size can be realized, realize the constant speed regulation of air conditioning system, thus be effectively prevented from making combustible refrigerant cannot participate in circulation because the lubricating oil viscosity of compressor causes greatly throttling arrangement oil to block up, and dallied by compressor, the problem that the compressor electric motor excessive heating that system capability and power drop cause affects the service life of compressor and air conditioning system, and then effectively improve the experience of user, and capillary tube has simple in construction, cheap feature, the production cost of air conditioning system can be reduced.
In any of the above-described technical scheme, preferably, described default operating condition includes: the duty that the duty that described air conditioning system defrost starts, described air conditioning system defrost terminate, described air conditioning system are in the duty of low-temperature heating and described air conditioning system operates in less than the duty presetting ambient temperature；Described combustible refrigerant is R290 cold-producing medium.
In this technical scheme, the default operating condition that air conditioning system easily occurs oil stifled includes but not limited to: the duty that air conditioning system defrost starts, the duty that air conditioning system defrost terminates, air conditioning system is in start and is in the duty of low-temperature heating and air conditioning system operates in less than the duty presetting ambient temperature, wherein, defrost terminates, the probability that defrost starts and under the duty of low-temperature heating, air conditioning system occurs oil stifled reduces successively, generally speaking, when cold-producing medium meets with the system environments of the temperature difference differing more than 30 DEG C within air-conditioning systems, arise that oil is stifled, and when operating in the environment of subzero less than 15 DEG C, also can block up by oil, when subzero 30 DEG C, oil is stifled certainly, additionally, when air conditioning system is in frequency conversion, severe, when high operating mode or cryogenic refrigeration, there is also the situation that oil is stifled.
And for how judging whether air conditioning system is in default operating condition, specifically, when the cross valve postrun accumulative switching times of start of air conditioning system is even-times, then can determine that air conditioning system is in the duty that defrost terminates, so when accumulative switching times is odd-times, then can determine that air conditioning system is in defrost and starts or be in the duty during defrost, and the duty being operated in low-temperature heating can arrange parameter determination according to start, specifically ambient temperature can be detected by the existing temperature sensor of air conditioning system；It addition, combustible refrigerant is preferably low GWP, does not almost have R290 (i.e. propane) cold-producing medium of any pollution.
Additional aspect of the present utility model and advantage will part be given in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will be apparent from easy to understand, wherein from combining the accompanying drawings below description to embodiment:
Fig. 1 shows the block diagram of the air conditioning system according to an embodiment of the present utility model.
Detailed description of the invention
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, with detailed description of the invention, this utility model is further described in detail below in conjunction with the accompanying drawings.It should be noted that in the case of not conflicting, the feature in embodiments herein and embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding this utility model; but; this utility model can be implemented to use other to be different from other modes described here, and therefore, protection domain of the present utility model is not limited by following public specific embodiment.
Fig. 1 shows the block diagram of the air conditioning system according to an embodiment of the present utility model.
As it is shown in figure 1, according to the air conditioning system of an embodiment of the present utility model, the cold-producing medium that described air conditioning system uses is combustible refrigerant, and described air conditioning system includes: electric-controlled box 102；Circulate the compressor 104 of connection, cross valve 106, outdoor heat exchanger 108, throttling arrangement 110 and indoor heat exchanger 112 successively；First flow-guiding channel 114 and/or the second flow-guiding channel 116；The described Single port of the first flow-guiding channel 114 and the electric-controlled box 102 of described air conditioning system are oppositely arranged, another port is oppositely arranged with described throttling arrangement 110, at the heat transporting extremely described throttling arrangement 110 that will produce in described electric-controlled box 102 work process；The Single port of described second flow-guiding channel 116 and described compressor 104 are oppositely arranged, the other end is positioned at described throttling arrangement 110 and is oppositely arranged, at the heat transporting extremely described throttling arrangement 110 that will produce in described compressor 104 work process.
nullAir conditioning system according to embodiment of the present utility model，Including: electric-controlled box 102，Circulate the compressor 104 of connection successively、Cross valve 106、Outdoor heat exchanger 108、Throttling arrangement 110 and indoor heat exchanger 112，Wherein，Electric-controlled box 102 is used for driving compressor 104 to work，And also include for by the heat transporting produced in electric-controlled box 102 work process to the first flow-guiding channel 114 of throttling arrangement 110 and/or be used for the second flow-guiding channel 116 of the heat transporting that produces in compressor 104 work process to throttling arrangement 110，So，Can whether oil blocks up controls whether to open the first flow-guiding channel 114 and/or the second flow-guiding channel 116 according to air conditioning system，Such as，The control to its on off state can be realized by arranging switch in the first flow-guiding channel 114 and/or the second flow-guiding channel 116，To be used for heating for throttling arrangement 110 by the internal heat produced in air conditioning system work process，Air conditioning system is made to recover to run well efficiently solving the stifled problem of oil in time，And then avoid air conditioning system that the phenomenon that ability decays occurs because oil blocks up，To ensure compressor 104 and the service life of air conditioning system，Improve the comfort of air conditioning system simultaneously，Promote Consumer's Experience.
Air conditioning system according to above-described embodiment of the present utility model, it is also possible to there is techniques below feature:
In technique scheme, preferably, described first flow-guiding channel 114 and/or described second flow-guiding channel 116 specifically for: when described air conditioning system default operating condition issue oil generation block up time, open in running order, with the heat transporting that will produce in described electric-controlled box 102 and/or compressor 104 work process accordingly at described throttling arrangement 110.
In this technical scheme, when the default operating condition of air conditioning system issue oil generation block up time, the first flow-guiding channel 114 and/or the second flow-guiding channel 116 corresponding between electric-controlled box 102 and/or compressor 104 with the throttling arrangement 110 of air conditioning system then can be arranged on by unlatching, with will in electric-controlled box 102 and/or compressor 104 work process produce heat transporting to throttling arrangement 110, think that it heats, and then the combustible refrigerant in air conditioning system and compressor 104 lubricating oil can be made through the smooth circulation circulation in air conditioning system of this throttling arrangement 110, effectively to ensure air conditioning system reliability of operation, and guarantee the service life of product.
In any of the above-described technical scheme, it is preferable that be placed with the power model driving the work of described compressor 104 in described electric-controlled box 102；And the Single port of described first flow-guiding channel 114 position corresponding with the described power model position of described electric-controlled box 102 is oppositely arranged；And/or the described Single port of the second flow-guiding channel 116 is oppositely arranged with air vent, gas returning port and/or the bottom of described compressor 104.
In this technical scheme, in order to avoid heat waste, the position of the port of the first guiding device of electric-controlled box 102 side with the power model place in electric-controlled box 102 to throttling arrangement 110, then can be oppositely arranged by the heat transporting of generation in more preferable electric-controlled box 102 work process；And the port of compressor 104 side for the second flow-guiding channel 116, can be oppositely arranged bottom the air vent of compressor 104, gas returning port and/or compressor 104, so that heat transporting to the throttling arrangement 110 produced in compressor 104 work process is solved the problem that air conditioning system oil is stifled.
In any of the above-described technical scheme, preferably, also including: air-supply arrangement 118, described air-supply arrangement 118 is arranged at described throttling arrangement 110, for by the blowing heat of described first flow-guiding channel 114 and/or described second flow-guiding channel 116 to described throttling arrangement 110.
In this technical scheme, air conditioning system also includes the air-supply arrangement 118 being arranged at throttling arrangement 110, with preferably by the blowing heat that transmitted by the first corresponding flow-guiding channel 114 and/or the second flow-guiding channel 116 by electric-controlled box 102 and/or compressor 104 to throttling arrangement 110, solve, to improve, the efficiency that air conditioning system oil is stifled, thus promote Consumer's Experience.
In any of the above-described technical scheme, preferably, when described air conditioning system includes described first flow-guiding channel 114 and described second flow-guiding channel 116, same port is merged in the another port of described first flow-guiding channel 114 and the another port of described second flow-guiding channel 116, to be oppositely arranged with described throttling arrangement 110.
In this technical scheme, when air conditioning system is provided with simultaneously for by the heat transporting produced in electric-controlled box 102 work process to the first flow-guiding channel 114 of throttling arrangement 110 and be used for the heat transporting that produces in compressor 104 work process to throttling arrangement 110 the second flow-guiding channel 116 time, then the port of the first flow-guiding channel 114 of throttling arrangement 110 side and the second flow-guiding channel 116 can be merged into a port being oppositely arranged with throttling arrangement 110, to concentrate transporting to throttling arrangement 110 thermal source in air conditioning system, improve and solve the efficiency that air conditioning system oil is stifled.
In any of the above-described technical scheme, it is preferable that the bottom of described compressor 104 is provided with temperature-detecting device.
In this technical scheme, by the bottom of the compressor 104 in air conditioning system, temperature-detecting device is set, can be used to when the air conditioning system using combustible refrigerant is in the duty easily occurring oil stifled, temperature bottom the compressor 104 detected according to this temperature-detecting device judges whether air conditioning system occurs oil stifled, and then determines whether that opening the first flow-guiding channel 114 and/or the second flow-guiding channel 116 blocks up problem with the oil solving air conditioning system.
In any of the above-described technical scheme, it is preferable that be provided with pressure-detecting device and/or temperature-detecting device at the exhaust ports of described compressor 104 and/or the gas returning port of described compressor 104.
In this technical scheme, by arranging pressure-detecting device and/temperature-detecting device at the exhaust ports of the compressor 104 of air conditioning system and/or the gas returning port of compressor 104, can be used to when the air conditioning system using combustible refrigerant is in the duty easily occurring oil stifled, force value and/or temperature value at the exhaust ports of compressor 104 detected according to this pressure-detecting device and/or temperature-detecting device and/or the gas returning port of compressor 104 judge whether air conditioning system occurs oil stifled, and then determine whether that opening the first flow-guiding channel 114 and/or the second flow-guiding channel 116 blocks up problem with the oil solving air conditioning system.
In any of the above-described technical scheme, it is preferable that described compressor 104, described cross valve 106, described outdoor heat exchanger 108, described throttling arrangement 110 and described indoor heat exchanger 112 circulate connection successively by copper pipe.
In this technical scheme, by compressor 104, cross valve 106, outdoor heat exchanger 108, throttling arrangement 110 and indoor heat exchanger 112 are circulated connection successively by copper pipe, so that combustible refrigerant can in air-conditioning system pipeline flow circuit, realize the properly functioning of air conditioning system, in order to ensure user's request, improve air conditioning system reliability of operation.
In any of the above-described technical scheme, it is preferable that described throttling arrangement 110 includes: electric expansion valve, capillary tube or choke valve.
In this technical scheme, throttling arrangement 110 includes but not limited to: electric expansion valve, capillary tube or choke valve, the regulation to refrigerant flow size can be realized, realize the constant speed regulation of air conditioning system, thus be effectively prevented from making combustible refrigerant cannot participate in circulation because the lubricating oil viscosity of compressor 104 causes greatly throttling arrangement 110 oil to block up, and dallied by compressor 104, the problem that the compressor 104 motor excessive heating that system capability and power drop cause affects the service life of compressor 104 and air conditioning system, and then effectively improve the experience of user, and capillary tube has simple in construction, cheap feature, the production cost of air conditioning system can be reduced.
In any of the above-described technical scheme, preferably, described default operating condition includes: the duty that the duty that described air conditioning system defrost starts, described air conditioning system defrost terminate, described air conditioning system are in the duty of low-temperature heating and described air conditioning system operates in less than the duty presetting ambient temperature；Described combustible refrigerant is R290 cold-producing medium.
In this technical scheme, the default operating condition that air conditioning system easily occurs oil stifled includes but not limited to: the duty that air conditioning system defrost starts, the duty that air conditioning system defrost terminates, air conditioning system is in start and is in the duty of low-temperature heating and air conditioning system operates in less than the duty presetting ambient temperature, wherein, defrost terminates, the probability that defrost starts and under the duty of low-temperature heating, air conditioning system occurs oil stifled reduces successively, generally speaking, when cold-producing medium meets with the system environments of the temperature difference differing more than 30 DEG C within air-conditioning systems, arise that oil is stifled, and when operating in the environment of subzero less than 15 DEG C, also can block up by oil, when subzero 30 DEG C, oil is stifled certainly, additionally, when air conditioning system is in frequency conversion, severe, when high operating mode or cryogenic refrigeration, there is also the situation that oil is stifled.
And for how judging whether air conditioning system is in default operating condition, specifically, when the cross valve postrun accumulative switching times of start of air conditioning system is even-times, then can determine that air conditioning system is in the duty that defrost terminates, so when accumulative switching times is odd-times, then can determine that air conditioning system is in defrost and starts or be in the duty during defrost, and the duty being operated in low-temperature heating can arrange parameter determination according to start, specifically ambient temperature can be detected by the existing temperature sensor of air conditioning system；It addition, combustible refrigerant is preferably low GWP, does not almost have R290 (i.e. propane) cold-producing medium of any pollution.
In the technical solution of the utility model, the control to its on off state can also be realized without arranging switch in the first flow-guiding channel 114 and/or the second flow-guiding channel 116, i.e. when air conditioning system opens operating by the heat that produces in electric-controlled box 102 and/or compressor 104 work process by the first through flow-guiding channel 114 and/or the second real-time transporting of flow-guiding channel 116 to throttling arrangement 110.
The technical solution of the utility model is described in detail above in association with accompanying drawing, can solve the stifled problem of oil timely and effectively makes air conditioning system recover to run well, and then avoid air conditioning system that the phenomenon that ability decays occurs because oil blocks up, to ensure compressor and the service life of air conditioning system, improve the comfort of air conditioning system simultaneously, promote Consumer's Experience, the most also preferably mate new cooling media for research new type compressor lubricating oil from now on and provide a kind of reference frame.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (11)
1. an air conditioning system, it is characterised in that the cold-producing medium that described air conditioning system uses is combustible refrigerant, and described air conditioning system includes:
Electric-controlled box；
Circulate the compressor of connection, cross valve, outdoor heat exchanger, throttling arrangement and indoor heat exchanger successively；
First flow-guiding channel and/or the second flow-guiding channel；
The Single port of described first flow-guiding channel and the electric-controlled box of described air conditioning system are oppositely arranged, another port is oppositely arranged with described throttling arrangement, at the heat transporting extremely described throttling arrangement that will produce in described electric-controlled box work process；
The Single port of described second flow-guiding channel and described compressor are oppositely arranged, the other end is positioned at described throttling arrangement and is oppositely arranged, at the heat transporting extremely described throttling arrangement that will produce in described compressor operation.
Air conditioning system the most according to claim 1, it is characterized in that, described first flow-guiding channel and/or described second flow-guiding channel specifically for: when described air conditioning system default operating condition issue oil generation block up time, open in running order, with the heat transporting that will produce in described electric-controlled box and/or compressor operation accordingly at described throttling arrangement.
Air conditioning system the most according to claim 1, it is characterised in that be placed with the power model driving described compressor operating in described electric-controlled box；And
The position that the Single port of described first flow-guiding channel is corresponding with the described power model position of described electric-controlled box is oppositely arranged；And/or
The Single port of described second flow-guiding channel is oppositely arranged with air vent, gas returning port or the bottom of described compressor.
Air conditioning system the most according to claim 1, it is characterised in that also include: air-supply arrangement, described air-supply arrangement is arranged at described throttling arrangement, for by the blowing heat of described first flow-guiding channel and/or described second flow-guiding channel to described throttling arrangement.
Air conditioning system the most according to any one of claim 1 to 4, it is characterized in that, when described air conditioning system includes described first flow-guiding channel and described second flow-guiding channel, same port is merged in the another port of described first flow-guiding channel and the another port of described second flow-guiding channel, to be oppositely arranged with described throttling arrangement.
Air conditioning system the most according to any one of claim 1 to 4, it is characterised in that the bottom of described compressor is provided with temperature-detecting device.
Air conditioning system the most according to any one of claim 1 to 4, it is characterised in that be provided with pressure-detecting device and/or temperature-detecting device at the exhaust ports of described compressor and/or the gas returning port of described compressor.
Air conditioning system the most according to any one of claim 1 to 4, it is characterised in that described compressor, described cross valve, described outdoor heat exchanger, described throttling arrangement and described indoor heat exchanger circulate connection successively by copper pipe.
Air conditioning system the most according to any one of claim 1 to 4, it is characterised in that described throttling arrangement includes: electric expansion valve, capillary tube or choke valve.
Air conditioning system the most according to claim 2, it is characterized in that, described default operating condition includes: the duty that the duty that described air conditioning system defrost starts, described air conditioning system defrost terminate, described air conditioning system are in the duty of low-temperature heating and described air conditioning system operates in less than the duty presetting ambient temperature.
11. according to the air conditioning system according to any one of claim 2 to 4, it is characterised in that described combustible refrigerant is R290 cold-producing medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521143886.1U CN205448013U (en) | 2015-12-31 | 2015-12-31 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521143886.1U CN205448013U (en) | 2015-12-31 | 2015-12-31 | Air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205448013U true CN205448013U (en) | 2016-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546641A (en) * | 2015-12-31 | 2016-05-04 | 广东美的制冷设备有限公司 | Air conditioning system, and processing method and device for oil blockage of air conditioning system |
| CN107062679A (en) * | 2017-04-27 | 2017-08-18 | 广东美的制冷设备有限公司 | Air-conditioning system and its control method |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546641A (en) * | 2015-12-31 | 2016-05-04 | 广东美的制冷设备有限公司 | Air conditioning system, and processing method and device for oil blockage of air conditioning system |
| CN105546641B (en) * | 2015-12-31 | 2018-03-27 | 广东美的制冷设备有限公司 | Air-conditioning system, air-conditioning system oil stifled processing method and processing unit |
| CN107062679A (en) * | 2017-04-27 | 2017-08-18 | 广东美的制冷设备有限公司 | Air-conditioning system and its control method |
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