CN104748424A - Outdoor unit assembly of multiple on-line system and multiple on-line system with same - Google Patents
Outdoor unit assembly of multiple on-line system and multiple on-line system with same Download PDFInfo
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- CN104748424A CN104748424A CN201510148147.XA CN201510148147A CN104748424A CN 104748424 A CN104748424 A CN 104748424A CN 201510148147 A CN201510148147 A CN 201510148147A CN 104748424 A CN104748424 A CN 104748424A
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- line system
- heat exchanger
- valve port
- assembly
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses an outdoor unit assembly of a multiple on-line system and the multiple on-line system with the same. The outdoor unit assembly is provided with a low-pressure valve port and a high-pressure valve port; the outdoor unit assembly comprises a compressor, a reversing assembly, an outdoor heat exchanger assembly, a liquid accumulation prevention loop, a pressure sensor, an electronic expansion valve and a control assembly. The outdoor heat exchanger assembly comprises multiple heat exchanging parts; one end of the liquid accumulation prevention loop is connected between each heat exchanging part and a corresponding first control valve, and the other end of the liquid accumulation prevention loop is connected with the low-pressure valve port; the pressure sensor is used for detecting the pressure of the liquid accumulation prevention loop; the electronic expansion valve is connected to the liquid accumulation prevention loop in series; the control assembly is connected with the compressor, the reversing assembly, the first control valve, the pressure sensor and the electronic expansion valve, and the control assembly controls the opening degree of the electronic expansion valve according to the detecting result of the pressure sensor. The outdoor unit assembly of the multiple on-line system can achieve a liquid accumulation prevention function of the multiple on-line system under various working conditions.
Description
Technical field
The present invention relates to living electric apparatus field, especially relate to a kind of off-premises station assembly of multiple on-line system and there is its multiple on-line system.
Background technology
In multi-connected machine especially heat-reclamation multi-compressors system, usually outdoor heat exchanger is divided into different load demand when multiple heat exchanging part is closed with satisfied different indoor units, the magnetic valve that multiple heat exchanging part is arranged by heat exchanging part import department usually and system connectivity or partition.When multi-connected machine off-premises station running refrigerating, close to cause and form hydrops because this heat exchanging part import department magnetic valve leaks in the pass of certain heat exchanging part of off-premises station, usually magnetic valve and capillary are connected between the import of each heat exchanging part and low pressure valve port and form anti-hydrops loop, the magnetic valve of its import department is opened to avoid hydrops when certain heat exchanging part is closed, but send out assorted due to multiple on-line system operating condition, under some operating mode, existing anti-hydrops design cannot play the effect of anti-hydrops.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the present invention proposes a kind of off-premises station assembly of multiple on-line system, and described off-premises station assembly can realize the anti-hydrops object of multiple on-line system under various operating mode.
The invention allows for a kind of multiple on-line system, comprise the off-premises station assembly of multiple on-line system as above.
According to the off-premises station assembly of multiple on-line system of the present invention, described off-premises station assembly has low pressure valve port and high pressure valve port, and described off-premises station assembly comprises: compressor, and described compressor has exhaust outlet and gas returning port; Commutation assembly, described commutation assembly has first to fourth valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port; Outdoor heat exchanger assembly, described outdoor heat exchanger assembly comprises multiple heat exchanging part, and the first end of each described heat exchanging part is connected with described second valve port by the first control valve, and the second end of each described heat exchanging part is connected with described high pressure valve port; Anti-hydrops loop, the one end in described anti-hydrops loop is connected to each described heat exchanging part and accordingly between described first control valve, the other end in described anti-hydrops loop is connected with described low pressure valve port; Pressure sensor, described pressure sensor is for detecting the pressure in described anti-hydrops loop; Electric expansion valve, described electric expansion valve is connected on described anti-hydrops loop; Control Component, described Control Component is connected with described electric expansion valve with described compressor, described commutation assembly, described first control valve, described pressure sensor, and described Control Component controls the aperture of described electric expansion valve according to the testing result of described pressure sensor.
According to the off-premises station assembly of multiple on-line system of the present invention, by arranging pressure sensor, electric expansion valve and Control Component in anti-hydrops loop, utilize pressure sensor to detect pressure in anti-hydrops loop simultaneously, and testing result is fed back to Control Component, control the aperture of electric expansion valve to reduce the refrigerant pressure of the heat exchanging part of closed condition by Control Component again, thus realize the anti-hydrops object of multiple on-line system under various operating mode.
According to some embodiments of the present invention, the contiguous described outdoor heat exchanger assembly of described pressure sensor is arranged.
According to some embodiments of the present invention, described outdoor heat exchanger assembly comprises First Heat Exchanger and the second heat exchanger, described First Heat Exchanger has multiple first heat exchange path, and described multiple first heat exchange path and described second heat exchanger limit described multiple heat exchanging part.
Further, described First Heat Exchanger has the second heat exchange path be positioned at below described multiple first heat exchange path, and described second heat exchange path is connected with described exhaust outlet by the second control valve.
In further embodiment of the present invention, described second heat exchanger has the 3rd heat exchange path being positioned at bottom, and described 3rd heat exchange path is connected with described exhaust outlet by the 3rd control valve.
According to some embodiments of the present invention, the off-premises station assembly of described multiple on-line system, also comprises air supply passage, and described air supply passage is connected with described high pressure valve port with described exhaust outlet, described air supply passage is in series with the 4th control valve.
According to some embodiments of the present invention, described First Heat Exchanger and described second heat exchanger are two independently heat exchange elements.
According to some embodiments of the present invention, described First Heat Exchanger and described second heat exchanger are two parts of a heat exchange element.
According to multiple on-line system of the present invention, comprise the off-premises station assembly of multiple on-line system as above.
According to multiple on-line system of the present invention, by arranging above-mentioned off-premises station assembly in this multiple on-line system, the anti-hydrops object of multiple on-line system under various operating mode can be realized.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the off-premises station assembly of multiple on-line system according to the embodiment of the present invention.
Reference numeral:
Off-premises station assembly 100;
Low pressure valve port 1;
High pressure valve port 2;
Compressor 3; Exhaust outlet 31; Gas returning port 32;
Commutation assembly 4;
Outdoor heat exchanger assembly 5; First Heat Exchanger 51; First heat exchange path 511; Second heat exchange path 512; Second heat exchanger 52; 3rd heat exchange path 521; First control valve 53; Second control valve 54; 3rd control valve 55; 4th control valve 56;
Anti-hydrops loop 6;
Electric expansion valve 7;
Pressure sensor 8;
Air supply passage 9.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to Fig. 1, the off-premises station assembly 100 according to the multiple on-line system of the embodiment of the present invention is described, off-premises station assembly 100 is applied in multiple on-line system, off-premises station assembly 100 can have low pressure valve port 1 and high pressure valve port 2, by arranging low pressure valve port 1 and high pressure valve port 2, off-premises station assembly 100 and refrigerant can be made to flow to switching device shifter be communicated with, thus flow to switching device shifter by refrigerant and the refrigerant of different conditions be separated to respectively refrigeration indoor set and heat in indoor set, refrigeration and heating while finally realizing multiple indoor sets of multiple on-line system.
As shown in Figure 1, compressor 3, commutation assembly 4, outdoor heat exchanger assembly 5, anti-hydrops loop 6, pressure sensor 8, electric expansion valve 7 and Control Component can be comprised according to the off-premises station assembly 100 of the multiple on-line system of the embodiment of the present invention.
Particularly, compressor 3 has exhaust outlet 31 and gas returning port 32, and refrigerant enters in compressor 3 from gas returning port 32, and the refrigerant forming HTHP after compressor 3 compresses is discharged from exhaust outlet 31.
Commutation assembly 4 has first to fourth valve port, wherein, first valve port is communicated with one of them in the 3rd valve port with the second valve port, 4th valve port and the second valve port are communicated with another in the 3rd valve port, that is, when the first valve port is communicated with the second valve port, the 4th valve port is then communicated with the 3rd valve port, when the first valve port is communicated with the 3rd valve port, the 4th valve port is then communicated with the second valve port.In addition, the first valve port is also connected with exhaust outlet 31, and the 4th valve port is also connected with gas returning port 32.
Preferably, commutation assembly 4 can be cross valve, but is understandable that, commutation assembly 4 can be formed as other elements, as long as have first to fourth valve port and can realize commutating.
Outdoor heat exchanger assembly 5 comprises multiple heat exchanging part, the first end of each heat exchanging part is connected with the second valve port by the first control valve 53, second end of each heat exchanging part is connected with high pressure valve port 2, because the first end of each heat exchanging part is connected with the second valve port respectively by the first control valve 53, that is, the unlatching of the entrance point of each heat exchanging part or close separate, is independent of each other.
The one end in anti-hydrops loop 6 is connected between each heat exchanging part and corresponding first control valve 53, the other end in anti-hydrops loop 6 is connected with low pressure valve port 1, when the first control valve 53 controls the closedown of corresponding heat exchanging part, by opening anti-hydrops loop 6, to reduce the refrigerant pressure of the heat exchanging part of closed condition, thus avoid hydrops.
Pressure sensor 8 may be used for the pressure detecting anti-hydrops loop 6, and electric expansion valve 7 is connected on anti-hydrops loop 6, opens aperture by adjustment electric expansion valve 7, and adaptability reduces the refrigerant pressure of heat exchanging part, thus avoids hydrops.Such as, when the first control valve 53 controls the closedown of corresponding heat exchanging part, pressure sensor 8 can measure the pressure in anti-hydrops loop 6, the electric expansion valve 7 be connected on anti-hydrops loop 6 opens corresponding aperture, to reduce the refrigerant pressure of heat exchanging part, now the opening aperture saturation temperature that the pressure of electric expansion valve 7 import department is corresponding can be made lower than environment temperature of electric expansion valve 7, thus prevent heat from handing over the generation of hydrops, realize the anti-hydrops object of multiple on-line system under various operating mode.
Control Component and compressor 3, commutation assembly 4, first control valve 53, pressure sensor 8 is connected with electric expansion valve 7, Control Component controls the aperture of electric expansion valve 7 according to the testing result of pressure sensor 8, that is, when the first control valve 53 controls the closedown of corresponding heat exchanging part, force value in the anti-hydrops loop 6 detected is fed back to Control Component by pressure sensor 8, the size of the pressure that Control Component feeds back according to pressure sensor 8 controls the aperture of electric expansion valve 7 to reduce the refrigerant pressure of heat exchanging part, now the opening aperture saturation temperature that the pressure of electric expansion valve 7 import department is corresponding can be made lower than environment temperature of electric expansion valve 7, thus prevent the generation of hydrops, realize the anti-hydrops object of multiple on-line system under various operating mode.
According to the off-premises station assembly 100 of multiple on-line system of the present invention, by arranging pressure sensor 8, electric expansion valve 7 and Control Component in anti-hydrops loop 6, utilize pressure sensor 8 to detect pressure in anti-hydrops loop 6 simultaneously, and testing result is fed back to Control Component, controlled the aperture of electric expansion valve 7 again by Control Component to make saturation temperature that the pressure of heat exchanging part import department is corresponding lower than environment temperature, thus the anti-hydrops object of multiple on-line system under various operating mode can be realized.
In embodiment more of the present invention, pressure sensor 8 adjacent chamber external heat exchanger assembly 5 is arranged, that is, pressure sensor 8 can be connected in the anti-hydrops loop 6 of outdoor heat exchanger assembly 5, thus the pressure be convenient in the anti-hydrops loop 6 of Accurate Determining, the pressure data of detection is fed back to Control Component, the aperture being controlled anti-hydrops loop 6 by Control Component lower than environment temperature, thus can realize the anti-hydrops object of multiple on-line system under various operating mode with the saturation temperature making electric expansion valve 7 inlet pressure corresponding.
According to some embodiments of the present invention, outdoor heat exchanger assembly 5 comprises First Heat Exchanger 51 and the second heat exchanger 52, First Heat Exchanger 51 has multiple first heat exchange path 511, multiple first heat exchange path 511 and the second heat exchanger 52 limit multiple heat exchanging part, that is, second heat exchanger 52 is a heat exchanging part, multiple first heat exchange path 511 is remaining heat exchanging part, thus, outdoor heat exchanger assembly 5 can be made in wider scope, thermal discharge or caloric receptivity can be regulated continuously on the one hand, with the workload demand of satisfied different indoor set, each heat exchanging part can also be made to separate defrost on the other hand, thus shorten the defrost time.
Further, First Heat Exchanger 51 has the second heat exchange path 512 be positioned at below multiple first heat exchange path 511, second heat exchange path 512 is connected with exhaust outlet 31 by the second control valve 54, specifically, the refrigerant of the HTHP after compressor 3 compresses can flow to the below of heat exchanging part by the second heat exchange path 512, thus accelerate the defrost speed of this position, optimize defrost effect, and then the cold water of the heat exchanging part defrost generation avoided above because of the second heat exchange path 512 flows downward, and cause the cold water secondary icing blocking water hole on chassis.
In concrete example of the present invention, as shown in Figure 1, second heat exchanger 52 has the 3rd heat exchange path 521 being positioned at bottom, 3rd heat exchange path 521 is connected with exhaust outlet 31 by the 3rd control valve 55, the refrigerant of the HTHP after compressor 3 compresses can flow to the below of the second heat exchanger 52 by the 3rd heat exchange path 521, thus accelerate the defrost speed of the second heat exchanger 52, optimize the defrost effect of the second heat exchanger 52.
According to some embodiments of the present invention, the off-premises station assembly 100 of multiple on-line system also comprises air supply passage 9, air supply passage 9 is connected with high pressure valve port 2 with exhaust outlet 31, air supply passage 9 is in series with the opening and closing that the 4th control valve the 56, four control valve 56 can control air supply passage 9.Such as, when multiple on-line system is in main refrigeration mode, open the 4th control valve 56, the refrigerant of the HTHP after compressor 3 compresses can enter into high pressure valve port 2 by air supply passage 9, thus enter into refrigerant and flow to switching device shifter, refrigerant flows to switching device shifter and the refrigerant of different conditions is separated to respectively refrigeration indoor set and heats in indoor set, thus freezes while realizing multiple indoor sets of multiple on-line system and heat.
Alternatively, first control valve 53, second control valve 54, the 3rd control valve 55 and the 4th control valve 56 can be respectively magnetic valve, because electromagnetic valve structure is simple, cheap, and be quick on the draw, therefore, the first control valve 53, second control valve 54, the 3rd control valve 55 and the 4th control valve 56 are set to magnetic valve respectively and not only can meet use needs, also can reduce costs to a certain extent, save assembly space.But be understandable that, the first control valve 53, second control valve 54, the 3rd control valve 55 and the 4th control valve 56 can be not limited to magnetic valve, can also be other elements, as long as conducting or cut-off refrigerant can be realized.
Alternatively, First Heat Exchanger 51 and the second heat exchanger 52 can be two independently heat exchanger components, thus can improve the exchange capability of heat of outdoor heat exchanger assembly 5 to a great extent.
Certainly, the present invention is not limited thereto, First Heat Exchanger 51 and the second heat exchanger 52 also can be two parts of a heat exchange element, thus can be cost-saving to a certain extent.
According to the multiple on-line system of the embodiment of the present invention, comprise the off-premises station assembly 100 of multiple on-line system as above.
According to the multiple on-line system of the embodiment of the present invention, by arranging above-mentioned off-premises station assembly 100 in this multiple on-line system, the anti-hydrops object of multiple on-line system under various operating mode can be realized.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (9)
1. an off-premises station assembly for multiple on-line system, is characterized in that, described off-premises station assembly has low pressure valve port and high pressure valve port, and described off-premises station assembly comprises:
Compressor, described compressor has exhaust outlet and gas returning port;
Commutation assembly, described commutation assembly has first to fourth valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port;
Outdoor heat exchanger assembly, described outdoor heat exchanger assembly comprises multiple heat exchanging part, and the first end of each described heat exchanging part is connected with described second valve port by the first control valve, and the second end of each described heat exchanging part is connected with described high pressure valve port;
Anti-hydrops loop, the one end in described anti-hydrops loop is connected to each described heat exchanging part and accordingly between described first control valve, the other end in described anti-hydrops loop is connected with described low pressure valve port;
Pressure sensor, described pressure sensor is for detecting the pressure in described anti-hydrops loop;
Electric expansion valve, described electric expansion valve is connected on described anti-hydrops loop;
Control Component, described Control Component is connected with described electric expansion valve with described compressor, described commutation assembly, described first control valve, described pressure sensor, and described Control Component controls the aperture of described electric expansion valve according to the testing result of described pressure sensor.
2. the off-premises station assembly of multiple on-line system according to claim 1, is characterized in that, the contiguous described outdoor heat exchanger assembly of described pressure sensor is arranged.
3. the off-premises station assembly of multiple on-line system according to claim 1, it is characterized in that, described outdoor heat exchanger assembly comprises First Heat Exchanger and the second heat exchanger, described First Heat Exchanger has multiple first heat exchange path, and described multiple first heat exchange path and described second heat exchanger limit described multiple heat exchanging part.
4. the off-premises station assembly of multiple on-line system according to claim 3, it is characterized in that, described First Heat Exchanger has the second heat exchange path be positioned at below described multiple first heat exchange path, and described second heat exchange path is connected with described exhaust outlet by the second control valve.
5. the off-premises station assembly of the multiple on-line system according to claim 3 or 4, is characterized in that, described second heat exchanger has the 3rd heat exchange path being positioned at bottom, and described 3rd heat exchange path is connected with described exhaust outlet by the 3rd control valve.
6. the off-premises station assembly of multiple on-line system according to claim 1, is characterized in that, also comprise air supply passage, and described air supply passage is connected with described high pressure valve port with described exhaust outlet, described air supply passage is in series with the 4th control valve.
7. the off-premises station assembly of multiple on-line system according to claim 3, is characterized in that, described First Heat Exchanger and described second heat exchanger are two independently heat exchange elements.
8. the off-premises station assembly of multiple on-line system according to claim 3, is characterized in that, described First Heat Exchanger and described second heat exchanger are two parts of a heat exchange element.
9. a multiple on-line system, is characterized in that, comprises the off-premises station assembly of the multiple on-line system according to any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148147.XA CN104748424B (en) | 2015-03-31 | 2015-03-31 | The outdoor unit component and the multiple on-line system with it of multiple on-line system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148147.XA CN104748424B (en) | 2015-03-31 | 2015-03-31 | The outdoor unit component and the multiple on-line system with it of multiple on-line system |
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| CN104748424A true CN104748424A (en) | 2015-07-01 |
| CN104748424B CN104748424B (en) | 2017-06-06 |
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| CN114459178A (en) * | 2022-03-29 | 2022-05-10 | 重庆美的通用制冷设备有限公司 | Heat exchange unit and air conditioning equipment |
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| CN107024027A (en) * | 2017-03-29 | 2017-08-08 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN107024027B (en) * | 2017-03-29 | 2019-10-01 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN107560218A (en) * | 2017-09-14 | 2018-01-09 | 广东美的暖通设备有限公司 | Multiple on-line system and its defrosting control method |
| CN107560218B (en) * | 2017-09-14 | 2020-04-10 | 广东美的暖通设备有限公司 | Multi-split air conditioning system and defrosting control method thereof |
| CN114459178A (en) * | 2022-03-29 | 2022-05-10 | 重庆美的通用制冷设备有限公司 | Heat exchange unit and air conditioning equipment |
| CN114459178B (en) * | 2022-03-29 | 2023-08-29 | 重庆美的通用制冷设备有限公司 | Heat exchange unit and air conditioning equipment |
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|---|---|
| CN104748424B (en) | 2017-06-06 |
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