CN218469277U - Outdoor unit and air conditioner - Google Patents
Outdoor unit and air conditioner Download PDFInfo
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- CN218469277U CN218469277U CN202222380592.7U CN202222380592U CN218469277U CN 218469277 U CN218469277 U CN 218469277U CN 202222380592 U CN202222380592 U CN 202222380592U CN 218469277 U CN218469277 U CN 218469277U
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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 outdoor unit and an air conditioner, relating to the field of air conditioners; wherein, the off-premises station includes: the exhaust pipe of the compressor is connected with the first port, and a one-way valve is arranged on the exhaust pipe; a first inlet pipe of the first outdoor heat exchanger is connected with the second port, and a first electromagnetic valve is arranged on the first inlet pipe; a second inlet pipe of the second outdoor heat exchanger is connected with the second port, and a second electromagnetic valve is arranged on the second inlet pipe; a third electromagnetic valve is arranged between the exhaust pipe and the first inlet pipe, a fourth electromagnetic valve is arranged between the exhaust pipe and the second inlet pipe, and a fourth port is connected with an air conditioning pipe; when defrosting is performed, the first outdoor heat exchanger and the second outdoor heat exchanger are sequentially defrosted, so that continuous heating operation of the indoor unit is realized, the influence of defrosting of the outdoor unit on continuous heating of the indoor unit is avoided, the heating comfort is improved, meanwhile, the energy consumption of stopping the operation of the indoor unit due to defrosting is reduced, and the energy efficiency of the system is improved.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner technique and specifically relates to an off-premises station and air conditioner is related to.
Background
At present, when an air conditioning system needs defrosting in a heating mode, the operation mode of the air conditioning system is switched from a heating mode to a cooling mode, and the outdoor heat exchanger is defrosted by using the cooling mode. However, at this time, the indoor unit stops heating operation, which causes discontinuous heating, affects user comfort, and meanwhile, the air conditioning system is switched to a cooling mode for defrosting, which consumes ineffective power and reduces energy efficiency of the whole air conditioning system.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an off-premises station and air conditioner has alleviated the problem that the off-premises station defrosting influences the continuous heating of indoor set, has realized the operation that the indoor set heats in succession, has promoted the travelling comfort that heats, has reduced simultaneously because defrosting stops indoor set moving energy resource consumption, has promoted the efficiency of system.
In a first aspect, an embodiment of the present invention provides an outdoor unit, including: the system comprises a compressor, a four-way valve, a first outdoor heat exchanger and a second outdoor heat exchanger; the four-way valve comprises a first port, a second port, a third port and a fourth port; the exhaust pipe of the compressor is connected with the first port, and a one-way valve is arranged on the exhaust pipe; a first inlet pipe of the first outdoor heat exchanger is connected with the second port, and a first electromagnetic valve is arranged on the first inlet pipe; a second inlet pipe of the second outdoor heat exchanger is connected with the second port, and a second electromagnetic valve is arranged on the second inlet pipe; and a third electromagnetic valve is further arranged between the exhaust pipe and the first inlet pipe, a fourth electromagnetic valve is further arranged between the exhaust pipe and the second inlet pipe, and a fourth port is connected with an air conditioner air pipe.
When the air conditioner is defrosted, the outdoor unit defrosts the first outdoor heat exchanger and the second outdoor heat exchanger in sequence, so that the continuous heating operation of the indoor unit is realized, the influence of defrosting of the outdoor unit on the continuous heating of the indoor unit is avoided, the heating comfort is improved, the energy consumption for stopping the operation of the indoor unit due to defrosting is reduced, and the energy efficiency of the system is improved.
Preferably, one end of the pipeline where the third electromagnetic valve is located is respectively connected with the first electromagnetic valve and the first inlet pipe, and the other end of the pipeline is respectively connected with the one-way valve and the first port; one end of the pipeline where the fourth electromagnetic valve is located is connected with the second electromagnetic valve and the second inlet pipe respectively, and the other end of the pipeline is connected with the one-way valve and the first port respectively.
Preferably, the outdoor unit further includes a first electronic expansion valve and a second electronic expansion valve; one end of the first electronic expansion valve is connected with an outlet of the first outdoor heat exchanger, one end of the second electronic expansion valve is connected with an outlet of the second outdoor heat exchanger, and the other end of the first electronic expansion valve and the other end of the second electronic expansion valve are both connected with an air conditioner liquid pipe.
Preferably, the outdoor unit further includes a first outdoor fan and a second outdoor fan; the first outdoor fan and the first outdoor heat exchanger are arranged correspondingly, and the second outdoor fan and the second outdoor heat exchanger are arranged correspondingly.
Preferably, the outdoor unit further includes a gas-liquid separator; wherein, the one end of vapour and liquid separator is connected with the third port, and the other end is connected with the muffler of compressor.
In a second aspect, an embodiment of the present invention further provides an air conditioner, where the air conditioner includes the outdoor unit of the first aspect and multiple indoor units connected in parallel; wherein, the quantity of outdoor unit is one.
Preferably, in the heating mode of the air conditioner, the first outdoor heat exchanger and the second outdoor heat exchanger perform evaporative cooling, the first solenoid valve and the second solenoid valve are both in an open state, the third solenoid valve and the fourth solenoid valve are both in a closed state, the four-way valve is in an open state, the first outdoor fan and the second outdoor fan are both in an open state, and the first electronic expansion valve and the second electronic expansion valve are both in an open state.
Preferably, in the defrosting mode while heating of the air conditioner, the first outdoor heat exchanger is used for condensation heating, the second outdoor heat exchanger is used for evaporation cooling, the first solenoid valve is in a closed state, the third solenoid valve is in an open state, the first outdoor fan is in a closed state, the second solenoid valve is in an open state, the fourth solenoid valve is in a closed state, the four-way valve is in an open state, the second outdoor fan is in an open state, and both the first electronic expansion valve and the second electronic expansion valve are in an open state.
Preferably, the air conditioner further comprises an air conditioning air pipe; one end of an air-conditioning air pipe is connected with a fourth port of the four-way valve, the other end of the air-conditioning air pipe is respectively connected with a plurality of indoor units connected in parallel, and an air side stop valve is arranged on the air-conditioning air pipe.
Preferably, the air conditioner further comprises an air conditioner liquid pipe; one end of the air conditioner liquid pipe is connected with the first electronic expansion valve and the second electronic expansion valve, the other end of the air conditioner liquid pipe is respectively connected with the plurality of indoor units which are connected in parallel, and a liquid side stop valve is arranged on the air conditioner liquid pipe.
The embodiment of the utility model provides a following beneficial effect has been brought:
the embodiment of the utility model provides an off-premises station and air conditioner, through defrosting first outdoor heat exchanger and second outdoor heat exchanger in proper order when the defrosting, realized the operation that the indoor set heated in succession, avoided the off-premises station defrosting to influence the continuous heating of indoor set, promoted the travelling comfort of heating, reduced simultaneously because change the frost and stop indoor set moving energy resource consumption, promoted the efficiency of system.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an outdoor unit according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another air conditioner according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
To facilitate an understanding of the present embodiment, the following detailed description is provided to illustrate embodiments of the present invention.
The embodiment of the utility model provides an outdoor unit, as shown in figure 1, outdoor unit 1 includes: a compressor 11, a four-way valve 12, a first outdoor heat exchanger 131, and a second outdoor heat exchanger 132; the four-way valve 12 comprises a first port, a second port, a third port and a fourth port; an exhaust pipe 111 of the compressor 11 is connected to the first port, and a check valve 14 is provided in the exhaust pipe 111; a first inlet pipe of the first outdoor heat exchanger 131 is connected to the second port, and a first solenoid valve 151 is provided on the first inlet pipe; a second inlet pipe of the second outdoor heat exchanger 132 is connected to the second port, and a second solenoid valve 152 is provided on the second inlet pipe; and, a third electromagnetic valve 153 is further disposed between exhaust pipe 111 and the first inlet pipe, a fourth electromagnetic valve 154 is further disposed between exhaust pipe 111 and the second inlet pipe, and the fourth port is connected to air-conditioning air pipe 31.
Specifically, a first electromagnetic valve 151 is used for controlling the on/off of the first inlet pipe, a second electromagnetic valve 152 is used for controlling the on/off of the second inlet pipe, a third electromagnetic valve 153 for controlling the on/off is arranged on a connecting pipeline between the first inlet pipe and the exhaust pipe, and a fourth electromagnetic valve 154 for controlling the on/off is arranged on a connecting pipeline between the second inlet pipe and the exhaust pipe; therefore, by controlling the states of the four electromagnetic valves, the defrosting of one outdoor heat exchanger can be realized simultaneously, and the other outdoor heat exchanger continues to heat, so that the continuous heating of the indoor unit is realized, and the phenomenon that the indoor unit stops running due to the defrosting of the outdoor heat exchanger, which leads to the reduction of the heating comfort level of a user, is avoided.
One end of the pipeline where the third electromagnetic valve 153 is located is connected to the first electromagnetic valve 151 and the first inlet pipe, and the other end is connected to the check valve 14 and the first port; the fourth solenoid valve 154 is connected to the second solenoid valve 152 and the second inlet pipe at one end of the pipeline, and is connected to the check valve 14 and the first port at the other end of the pipeline.
In addition, the outdoor unit 1 further includes a first electronic expansion valve 161 and a second electronic expansion valve 162; one end of the first electronic expansion valve 161 is connected to an outlet of the first outdoor heat exchanger 131, and one end of the second electronic expansion valve 162 is connected to an outlet of the second outdoor heat exchanger 132; as shown in fig. 1, both the first electronic expansion valve 161 and the second electronic expansion valve 162 are connected to the air-conditioning liquid pipe 32. In practical applications, the first electronic expansion valve 161 and the second electronic expansion valve 162 are both used for adjusting flow and controlling on/off.
And, as shown in fig. 1, the outdoor unit 1 further includes a first outdoor fan 171 and a second outdoor fan 172; the first outdoor fan 171 is disposed corresponding to the first outdoor heat exchanger 131, the second outdoor fan 172 is disposed corresponding to the second outdoor heat exchanger 132, and the first outdoor fan 171 and the second outdoor fan 172 are independently controlled to be turned on or off. The outdoor unit 1 further includes a gas-liquid separator 18; wherein, one end of the gas-liquid separator 18 is connected with the third port, that is, the gas inlet pipe of the gas-liquid separator 18 is connected with the third port, and the other end is connected with the gas return pipe of the compressor 11. It should be noted that, parts not mentioned in the outdoor unit may refer to an existing outdoor unit, and the embodiments of the present invention are not described herein in detail.
The outdoor unit 1 operates according to the following principle:
(1) When the air conditioner is in heating operation, the first outdoor heat exchanger 131 and the second outdoor heat exchanger 132 are both evaporators, the coil temperature Te of the evaporators is detected, and the controller of the air conditioner comprehensively judges the frosting condition of the outdoor unit and the condition needing defrosting, such as To being less than T1 (such as 7 ℃), te being less than T2 (such as-7 ℃), and Th being more than Time1 (such as 50 min), and at the moment, the controller judges that the air conditioner needs To enter the defrosting action;
(2) In the defrosting process, the controller firstly carries out defrosting ON the first outdoor heat exchanger 131, at this time, the first outdoor heat exchanger 131 is switched from the evaporator to the condenser, the third electromagnetic valve 153 is switched from OFF to ON, the first electromagnetic valve 151 is switched from ON to OFF, and the first outdoor fan 171 is switched from ON to OFF; that is, the controller controls the third electromagnetic valve 153 to be in the working state, and the first electromagnetic valve 151 and the first outdoor fan 171 are switched to be in the non-working state;
(3) Detecting the coil temperature Te of the first outdoor heat exchanger 131, and controlling the first outdoor heat exchanger 131 to quit the defrosting action when Te is more than T3 (such as 9 ℃) and the duration Tf is more than Time2 (such as 1 min); at this time, the first outdoor fan 171 is switched from OFF to ON, the third electromagnetic valve 153 is switched from ON to OFF, and the first electromagnetic valve 151 is switched from OFF to ON, that is, when the first outdoor heat exchanger 131 meets the condition of exiting defrosting, the third electromagnetic valve 153 is controlled to be in a non-working state, the first electromagnetic valve 151 and the first outdoor fan 171 are switched to be in a working state, and the first outdoor heat exchanger 131 is controlled to return to the air conditioner heating cycle again;
(4) Similarly, the defrosting operation of the second outdoor heat exchanger 132 is continued, that is, at this time, the fourth solenoid valve 154 is controlled to be switched from OFF to ON, the second solenoid valve 152 is controlled to be switched from ON to OFF, and the second outdoor fan 172 is controlled to be switched from ON to OFF;
(5) Similarly, detecting the coil temperature Te of the second outdoor heat exchanger 132, and when Te is greater than T3 (e.g. 9 ℃), and the duration Tf is greater than Time2 (e.g. 1 min), exiting the defrosting operation; at this time, the second outdoor fan 172 is switched ON from OFF, the fourth solenoid valve 154 is switched OFF from ON, and the second solenoid valve 152 is switched ON from OFF, and the second outdoor heat exchanger 132 is controlled again to return to the air-conditioner heating cycle.
In conclusion, through the continuous circulating operation of the above steps (1) to (5), the continuous heating operation of the indoor unit is realized, the continuous heating of the indoor unit is prevented from being influenced by the defrosting of the outdoor unit, the heating comfort is improved, the energy consumption for stopping the operation of the indoor unit due to the defrosting is reduced, and the energy efficiency of the system is improved.
Further, on the basis of the outdoor unit, the embodiment of the present invention further provides an air conditioner, as shown in fig. 1, the air conditioner includes the outdoor unit 1 and a plurality of indoor units 2 connected in parallel. The number of the outdoor units 1 is one, and the number of the indoor units 2 is at least two.
Wherein, the air conditioner also comprises an air-conditioning air pipe 31; among them, one end of the air-conditioning air pipe 31 is connected to the fourth port of the four-way valve 12, and the other end is connected to each of the plurality of indoor units 2 connected in parallel, and the air-conditioning air pipe 31 is provided with an air-side shutoff valve 311.
In addition, the air conditioner further includes an air conditioner liquid pipe 32; among them, the air-conditioning liquid pipe 32 has one end connected to the first electronic expansion valve 161 and the second electronic expansion valve 162 and the other end connected to each of the plurality of indoor units 2 connected in parallel, and the air-conditioning liquid pipe 32 is provided with a liquid side stop valve 321.
And, as shown in fig. 1, each indoor unit 2 comprises: the indoor heat exchanger 21, the indoor fan 22 corresponding to the indoor heat exchanger 21, and the indoor electronic expansion valve 23 connected to the indoor heat exchanger 21 are all connected to the air conditioner liquid pipe 32.
For the air conditioner, when defrosting is needed during operation in the heating mode, the defrosting operation is performed on the first outdoor heat exchanger 131 and the second outdoor heat exchanger 132 in sequence, so that the situation that the defrosting operation of the outdoor unit 1 affects the continuous heating of the indoor unit 2 is avoided, the continuous heating operation of the indoor unit 2 is realized, the heating comfort is improved, the energy consumption for stopping the operation of the indoor unit 2 due to defrosting operation is reduced, and the energy efficiency of the system is improved.
Specifically, in the air conditioner heating mode, the first and second outdoor heat exchangers 131 and 132 are both used for evaporative cooling, the first and second solenoid valves 151 and 152 are both in an open state, the third and fourth solenoid valves 153 and 154 are both in a closed state, the four-way valve 12 is in an open state, the first and second outdoor fans 171 and 172 are both in an open state, and the first and second electronic expansion valves 161 and 162 are both in an open state. When the defrosting condition is satisfied, that is, in the defrosting mode while heating the air conditioner, at this time, the first outdoor heat exchanger 131 condenses and heats, the second outdoor heat exchanger 132 evaporates and cools, the first solenoid valve 151 is in a closed state, the third solenoid valve 153 is in an open state, the first outdoor fan 171 is in a closed state, the second solenoid valve 152 is in an open state, the fourth solenoid valve 154 is in a closed state, the four-way valve 12 is in an open state, the second outdoor fan 172 is in an open state, and both the first electronic expansion valve 161 and the second electronic expansion valve 162 are in an open state; and, after the defrosting of first outdoor heat exchanger 131 finishes, switch to evaporation refrigeration to control second outdoor heat exchanger 132 condensation and heat, and refer to the process that first outdoor heat exchanger 131 condensation heated, the state of the solenoid valve (second solenoid valve 152 and fourth solenoid valve 154) and the outdoor fan of second that adaptability adjustment second outdoor heat exchanger 132 corresponds, the embodiment of the utility model discloses no longer detailed description here. For the convenience of understanding, the continuous heating operation of the indoor units will be described by taking an example in which the air conditioner includes two indoor units. The specific working process is as follows:
(1) When the air conditioner is in heating operation, the air conditioning system circulates as shown in fig. 2, at this time, the first outdoor heat exchanger 131 and the second outdoor heat exchanger 132 are both evaporators, the first solenoid valve 151 and the second solenoid valve 152 are both in an operating state, that is, an ON state, the third solenoid valve 153 and the fourth solenoid valve 154 are both in a non-operating state, that is, an OFF state, the four-way valve 12 is in an ON state, the first outdoor fan 171 and the second outdoor fan 172 are in an ON state, the first electronic expansion valve 161 and the second electronic expansion valve 162 are both in an ON state, a high-pressure refrigerant ON the exhaust side of the compressor 11 enters the indoor unit 2 to be heated, and is evaporated back to the return air of the compressor 11 through the first outdoor heat exchanger 131 and the second outdoor heat exchanger 132;
(2) In the heating operation process, coil temperatures Te of the first outdoor heat exchanger 131 and the second outdoor heat exchanger 132 are respectively detected, and the controller of the air conditioner comprehensively judges the frosting condition of the operation outdoor unit and the condition needing defrosting, such as To is less than T1 (such as 7 ℃), te is less than T2 (such as-7 ℃), and Th is greater than Time1 (such as 50 min), and at the moment, the controller judges that the air conditioner needs To enter the defrosting action;
(3) When it is detected that the defrosting operation needs to be performed, the first outdoor heat exchanger 131 is defrosted first, as shown in fig. 3, at this time, the first outdoor heat exchanger 131 is switched from the evaporator to the condenser, the second outdoor heat exchanger 132 is still the evaporator, the third electromagnetic valve 153 is switched from OFF to ON, the first electromagnetic valve 151 is switched from ON to OFF, and the first outdoor fan 171 is switched from ON to OFF; a part of the high-temperature and high-pressure refrigerant discharged from the compressor 11 enters the indoor unit 2 through the four-way valve 12 to be heated, and the other part of the refrigerant enters the first outdoor heat exchanger 131 through the third solenoid valve 153 to be defrosted. The condensed gas is converged by the two indoor units 2 and the first outdoor heat exchanger 131, evaporated by the second outdoor heat exchanger 132 and returned to the compressor 11 for gas return;
(4) Simultaneously detecting the coil temperature Te of the first outdoor heat exchanger 131, and controlling the first outdoor heat exchanger 131 to quit defrosting when Te is more than T3 (such as 9 ℃) and the duration Tf is more than Time2 (such as 1 min); at this time, the first outdoor fan 171 is switched from OFF to ON, the third solenoid valve 153 is switched from ON to OFF, the first solenoid valve 151 is switched from OFF to ON, and the first outdoor heat exchanger 131 is controlled again to return to the air conditioner heating cycle shown in fig. 2;
(5) At this time, the defrosting operation of the second outdoor heat exchanger 132 is continued, that is, at this time, the second outdoor heat exchanger 132 is switched from the evaporator to the condenser, the first outdoor heat exchanger 131 is still the evaporator, and as shown in fig. 4, the fourth electromagnetic valve 154 is controlled to be switched from OFF to ON, the second electromagnetic valve 152 is controlled to be switched from ON to OFF, and the second outdoor fan 172 is controlled to be switched from ON to OFF; a part of the high-temperature and high-pressure refrigerant discharged from the compressor 11 enters the indoor unit 2 through the four-way valve 12 to be heated, and the other part enters the second outdoor heat exchanger 132 through the fourth solenoid valve 154 to be defrosted. The air is condensed and converged by the indoor unit 2 and the second outdoor heat exchanger 132, evaporated by the first outdoor heat exchanger 131, and returned to the compressor 11 for air return;
(6) Similarly, detecting the coil temperature Te of the second outdoor heat exchanger 132, and when Te is greater than T3 (such as 9 ℃), and the duration Tf is greater than Time2 (such as 1 min), exiting the defrosting operation; at this time, the second outdoor fan 172 is switched ON from OFF, the fourth solenoid valve 154 is switched OFF from ON, and the second solenoid valve 152 is switched ON from OFF, and the second outdoor heat exchanger 132 is controlled again to return to the air conditioner heating cycle shown in fig. 2.
Therefore, through the continuous circulating operation of the steps (1) to (6), the continuous heating operation of the indoor unit is realized, the continuous heating of the indoor unit is prevented from being influenced by the defrosting of the outdoor unit, the heating comfort is improved, meanwhile, the energy consumption for stopping the operation of the indoor unit due to the defrosting is reduced, and the energy efficiency of the system is improved.
In summary, the air conditioner has the following advantages: (1) the continuous heating of the indoor unit can be realized, and the outdoor heat exchanger cannot be stopped due to defrosting; (2) the indoor unit continuously heats, so that the heating comfort of customers is improved, the energy consumption for stopping the operation of the indoor unit due to defrosting is reduced, and the system energy efficiency is improved; (3) the defrosting (condenser) and heating (evaporator) of the two outdoor heat exchangers are switched simply, and stable and quick switching is realized; (4) the compressor exhaust pipe is provided with a one-way valve, so that backflow during heating and defrosting can be prevented, and normal operation of an air conditioning system is ensured; (5) the air conditioning system with the air-cooling plate exchange function can be expanded to air conditioning systems with different functions, such as an air conditioning system with an air-cooling plate exchange function, an air conditioning system with enhanced vapor injection function, an air conditioning system with a compressor for secondary compression and the like, and has a wide application range.
The device provided by the embodiment of the invention can be specific hardware on equipment or software or firmware installed on the equipment and the like. The embodiment of the present invention provides an air conditioner, which has the same technical effects as the aforementioned outdoor unit embodiment, and for the sake of brief description, the embodiment of the air conditioner partially does not refer to the parts, and can refer to the corresponding contents in the aforementioned outdoor unit embodiment. It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the above-described embodiment of the outdoor unit, and are not described herein again.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, each functional unit in the embodiments provided in the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An outdoor unit, comprising: the system comprises a compressor, a four-way valve, a first outdoor heat exchanger and a second outdoor heat exchanger; the four-way valve comprises a first port, a second port, a third port and a fourth port;
the exhaust pipe of the compressor is connected with the first port, and a check valve is arranged on the exhaust pipe; a first inlet pipe of the first outdoor heat exchanger is connected with the second port, and a first electromagnetic valve is arranged on the first inlet pipe; a second inlet pipe of the second outdoor heat exchanger is connected with the second port, and a second electromagnetic valve is arranged on the second inlet pipe; and a third electromagnetic valve is further arranged between the exhaust pipe and the first inlet pipe, a fourth electromagnetic valve is further arranged between the exhaust pipe and the second inlet pipe, and a fourth port is connected with an air conditioner air pipe.
2. The outdoor unit of claim 1, wherein the third solenoid valve is provided at a pipe having one end connected to the first solenoid valve and the first inlet pipe, and the other end connected to the check valve and the first port; one end of a pipeline where the fourth electromagnetic valve is located is connected with the second electromagnetic valve and the second inlet pipe respectively, and the other end of the pipeline is connected with the one-way valve and the first port respectively.
3. The outdoor unit of claim 1, further comprising a first electronic expansion valve and a second electronic expansion valve; one end of the first electronic expansion valve is connected with an outlet of the first outdoor heat exchanger, one end of the second electronic expansion valve is connected with an outlet of the second outdoor heat exchanger, and the other end of the first electronic expansion valve and the other end of the second electronic expansion valve are both connected with an air conditioner liquid pipe.
4. The outdoor unit of claim 1, further comprising a first outdoor fan and a second outdoor fan; the first outdoor fan is arranged corresponding to the first outdoor heat exchanger, and the second outdoor fan is arranged corresponding to the second outdoor heat exchanger.
5. The outdoor unit of claim 1, further comprising a gas-liquid separator; one end of the gas-liquid separator is connected with the third port, and the other end of the gas-liquid separator is connected with a gas return pipe of the compressor.
6. An air conditioner characterized by comprising the outdoor unit according to any one of claims 1 to 5 and a plurality of indoor units connected in parallel; wherein, the quantity of off-premises station is one.
7. The air conditioner of claim 6, wherein in the air conditioner heating mode, the first outdoor heat exchanger and the second outdoor heat exchanger both perform evaporative cooling, the first solenoid valve and the second solenoid valve are both in an open state, the third solenoid valve and the fourth solenoid valve are both in a closed state, the four-way valve is in an open state, the first outdoor fan and the second outdoor fan are both in an open state, and the first electronic expansion valve and the second electronic expansion valve are both in an open state.
8. The air conditioner according to claim 7, wherein in the defrosting mode while heating of the air conditioner, the first outdoor heat exchanger condenses to heat, the second outdoor heat exchanger evaporates to cool, the first solenoid valve is in a closed state, the third solenoid valve is in an open state, the first outdoor fan is in a closed state, the second solenoid valve is in an open state, the fourth solenoid valve is in a closed state, the four-way valve is in an open state, the second outdoor fan is in an open state, and both the first electronic expansion valve and the second electronic expansion valve are in an open state.
9. The air conditioner of claim 6, further comprising an air conditioning duct; and one end of the air-conditioning air pipe is connected with a fourth port of the four-way valve, the other end of the air-conditioning air pipe is respectively connected with a plurality of indoor units connected in parallel, and an air side stop valve is arranged on the air-conditioning air pipe.
10. The air conditioner of claim 6, further comprising an air conditioner liquid pipe; one end of the air conditioner liquid pipe is connected with the first electronic expansion valve and the second electronic expansion valve, the other end of the air conditioner liquid pipe is connected with the plurality of indoor units which are connected in parallel, and a liquid side stop valve is arranged on the air conditioner liquid pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222380592.7U CN218469277U (en) | 2022-09-06 | 2022-09-06 | Outdoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222380592.7U CN218469277U (en) | 2022-09-06 | 2022-09-06 | Outdoor unit and air conditioner |
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