CN111197819B - Air conditioner outdoor unit, air conditioner and control method of air conditioner - Google Patents
Air conditioner outdoor unit, air conditioner and control method of air conditioner Download PDFInfo
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- CN111197819B CN111197819B CN201811365068.4A CN201811365068A CN111197819B CN 111197819 B CN111197819 B CN 111197819B CN 201811365068 A CN201811365068 A CN 201811365068A CN 111197819 B CN111197819 B CN 111197819B
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- air conditioner
- refrigerant
- outdoor unit
- refrigerant pipeline
- pipeline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention provides an air conditioner outdoor unit, an air conditioner and a control method of the air conditioner, wherein the air conditioner outdoor unit comprises a compressor, an outdoor heat exchanger and a base plate, the base plate comprises a base plate upper bottom and a base plate lower bottom which are arranged from top to bottom, an interlayer is arranged between the base plate upper bottom and the base plate lower bottom, a refrigerant pipeline is arranged in the interlayer, and the refrigerant pipeline is connected with the outdoor heat exchanger in parallel.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air conditioner outdoor unit, an air conditioner and a control method of the air conditioner.
Background
At present, the heat pump type household room air conditioner adopts an air-cooled finned heat exchanger, when air flows through the heat exchanger, if the temperature of a coil pipe of an outdoor heat exchanger is lower than the dew point temperature of the air, moisture contained in the air can be separated out and attached to the surface of the coil pipe to form a frost layer. The greater the temperature difference between the coil surface and the inlet air, the faster the frost formation and the more severe the frost formation. As the frost layer is formed, the heating capacity of the air conditioner is reduced. When the defrosting condition of the air conditioner is met, the air conditioner starts a defrosting mode to convert frost formed on the condenser into water. The water is left on the chassis along the condenser and is discharged from a water discharge hole on the chassis.
For a multi-connected outdoor unit, especially a multi-connected outdoor unit working in a low-temperature high-humidity environment (such as-7 ℃/-8 ℃), defrosting may be performed for many times during a long-time heating operation, a large amount of defrosting water is separated out from an outdoor heat exchanger during defrosting, the defrosting water cannot be completely discharged through a water guide groove through a water discharge hole under normal conditions, and water on a chassis is not discharged completely after defrosting. If the water does not completely flow away from the air conditioner chassis, after defrosting is finished, when the air conditioner is converted into a heating mode again, the surface temperature of the evaporator is very low, and because the outdoor environment temperature is very low, the water can be frozen on the chassis part and accumulated at the bottom of the evaporator, the ice layer becomes thicker and thicker after a long time, and the heat exchange effect of the heat exchanger is finally influenced; liquid return can be caused in serious cases, so that liquid impact occurs to the compressor, and the safe and reliable operation of the compressor is influenced; the bottom of the evaporator is accumulated with an ice layer to lead the unit to defrost unclean, the heat exchange effect is influenced, the unit heating effect is poor, the heating defrosting period is greatly shortened, defrosting is often lengthened, and therefore the temperature of an indoor room cannot be guaranteed, and the heating comfort of a user is influenced.
In the prior art, to the chassis frost of cleaing away the outer machine of air conditioner, mainly adopt two kinds of modes: firstly, rely on the heat of condensation when outer quick-witted heat exchanger defrosting completely, clear away the frost on heat exchanger and chassis, secondly except the heat of condensation that relies on the system, at chassis installation electric heating area electric heating pipe, play the effect of supplementary deicing.
The following disadvantages exist for the two above modes of deicing: the former has the defects that residual ice is accumulated and the deicing is not thorough due to insufficient condensation heat or uneven sample machine arrangement; the latter has the disadvantages: the electric heating tube/electric heating belt of the chassis has the problems of electric leakage prevention, electric safety, authentication and the like due to the connection of strong electricity, and needs to face the complex problems of electric wiring design, logic control and the like; in addition, the electric heating pipe/electric heating belt of the chassis has lower safety factor in the use process, and oxidation electric leakage, pipe/belt burst accidents and the like can occur when the electric heating pipe/electric heating belt is used in various outdoor severe environments for a long time, so the long-term stability is poor.
Moreover, when the temperature difference between the ambient temperature and the set temperature is large, the air conditioner has limited cooling or heating capability, and the cooling or heating effect needs to be improved.
Because the air conditioner outdoor unit in the prior art has the technical problems that the heat exchange effect of the heat exchanger is influenced by accumulation of residual ice due to incomplete chassis deicing, the implementation is complex and the damage is easy to occur due to the adoption of electric auxiliary heating, the stability in long-term operation is poor, the refrigeration and heating effects of the air conditioner are to be improved, and the like, the air conditioner outdoor unit, the air conditioner and the control method of the air conditioner are one of the main problems to be solved urgently by technical personnel in the field, and can solve the technical problems that the heat exchange effect of the heat exchanger is influenced by accumulation of residual ice due to incomplete chassis deicing of the existing air conditioner outdoor unit, the damage is easy to occur due to the adoption of electric auxiliary heating, the stability in long-term operation is poor, the refrigeration and heating capabilities of the air conditioner are to be improved, and the like.
Disclosure of Invention
In view of the above, the present invention is directed to an air conditioner outdoor unit, an air conditioner, and a control method of the air conditioner, so as to solve the technical problems that the heat exchange effect of a heat exchanger is affected due to accumulation of residual ice caused by incomplete chassis deicing of the existing air conditioner outdoor unit, and that the existing air conditioner outdoor unit is easy to damage due to electric auxiliary heating, has poor long-term operation stability, and needs to improve the refrigerating and heating capabilities of the air conditioner.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the air conditioner outdoor unit comprises a compressor, an outdoor heat exchanger and a base plate, wherein the base plate comprises a base plate upper bottom and a base plate lower bottom which are arranged from top to bottom, an interlayer is arranged between the base plate upper bottom and the base plate lower bottom, a refrigerant pipeline is arranged in the interlayer, and the refrigerant pipeline is connected with the outdoor heat exchanger in parallel.
Furthermore, a mounting plate is arranged on the bottom of the chassis, the refrigerant pipeline is arranged on the mounting plate, and a third drain hole is formed in the mounting plate.
Furthermore, the mounting plate is provided with a first side and a second side which are arranged oppositely, and the refrigerant pipeline is a bent pipe which is bent and meandered between the first side and the second side.
Furthermore, the refrigerant pipeline is provided with a refrigerant pipeline inlet and a refrigerant pipeline outlet, the refrigerant pipeline inlet is communicated with a vent pipeline of the air conditioner outdoor unit, and the refrigerant pipeline outlet is communicated with a return air port of the air conditioner outdoor unit.
Furthermore, the refrigerant pipeline is of a branch structure, and the refrigerant pipeline is provided with one refrigerant pipeline inlet and one refrigerant pipeline outlet.
Furthermore, the refrigerant pipeline is of a multi-branch structure, and the refrigerant pipeline is provided with at least two refrigerant pipeline inlets and at least two refrigerant pipeline outlets.
An air conditioner comprises the air conditioner outdoor unit.
A control method of an air conditioner uses the air conditioner outdoor unit to heat a chassis.
Further, when refrigerating and heating, the inlet of the refrigerant pipeline is communicated with the exhaust pipeline of the outdoor unit of the air conditioner, the outlet of the refrigerant pipeline is communicated with the return air port of the outdoor unit of the air conditioner, the refrigerant pipeline can guide the refrigerant discharged by the exhaust pipeline into the refrigerant pipeline, and the refrigerant discharged by the exhaust pipeline exchanges heat with the outside air through the refrigerant pipeline.
Compared with the prior art, the air conditioner outdoor unit has the following advantages:
(1) the air conditioner outdoor unit eliminates ice on the base plate through the refrigerant pipeline connected with the outdoor heat exchanger in parallel, has a simple structure, does not relate to electric and control logics, and is simple to implement.
(2) The air conditioner outdoor unit eliminates ice on the base plate through the refrigerant pipeline connected with the outdoor heat exchanger in parallel, utilizes high-temperature exhaust in the refrigerant pipeline to remove ice, is safe, quick and effective, is not influenced by outdoor environment, can normally work at the temperature of less than minus 10 ℃, and effectively removes ice.
(3) The refrigerant pipeline of the air conditioner outdoor unit is horizontally distributed in the interlayer between the upper bottom of the base plate and the lower bottom of the base plate, so that on one hand, ice at all positions of the base plate can be eliminated; on the other hand, the heat exchange area of the refrigerant pipeline can be further increased, and the heat exchange effect is improved.
Another objective of the present invention is to provide an air conditioner, which has the same advantages as the above-mentioned outdoor unit of the air conditioner compared to the prior art, and therefore, the description thereof is omitted.
Another object of the present invention is to provide a control method of an air conditioner, which has the following advantages over the prior art: the control method of the air conditioner provided by the invention has the advantages that the refrigerant pipeline is connected with the outdoor heat exchanger in parallel to be used as a branch of the outdoor heat exchanger, which is equivalent to the extension of the heat exchange area of the outdoor heat exchanger, so that the heat exchange area in the outdoor unit is increased, and when the air conditioner refrigerates and heats, the refrigerant passes through the refrigerant pipeline, so that the refrigeration and heating effects of the air conditioner can be improved. Through the refrigerant pipeline, not only the energy consumption of the air conditioner is reduced, but also the refrigeration and heating effects of the air conditioner are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic top view of a base plate of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is another schematic top view of a base plate of an outdoor unit of an air conditioner according to an embodiment of the present invention (with the bottom of the base plate removed);
fig. 3 is a schematic front view illustrating a bottom chassis of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic side view of a base plate of an outdoor unit of an air conditioner according to an embodiment of the present invention.
Description of reference numerals:
1-upper bottom of the chassis, 101-first drain hole, 2-lower bottom of the chassis, 3-refrigerant pipeline, 301-refrigerant pipeline inlet, 302-refrigerant pipeline outlet, 4-mounting plate, 401-screw, 402-third drain hole, 403-first side and 404-second side.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
As shown in fig. 1 to 4, an outdoor unit of an air conditioner includes a compressor, an outdoor heat exchanger, and a base plate, wherein the base plate includes an upper base plate bottom 1 and a lower base plate bottom 2, which are arranged from top to bottom, an interlayer is provided between the upper base plate bottom 1 and the lower base plate bottom 2, a refrigerant pipeline 3 is provided in the interlayer, and the refrigerant pipeline 3 is connected in parallel with the outdoor heat exchanger. The inlet of the outdoor heat exchanger is communicated with a gas exhaust pipeline of the air-conditioning outdoor unit, and the outlet of the outdoor heat exchanger is communicated with a gas return port of the air-conditioning outdoor unit.
Refrigerant pipeline 3 sets up in the intermediate layer between the chassis is gone to the bottom 1 and the chassis 2, promptly the cavity between the chassis is gone to the bottom 1 and the chassis 2 holds the intracavity, makes refrigerant pipeline 3 centre gripping is in between chassis is gone to the bottom 1 and the chassis 2, when defrosting, there is high temperature exhaust in refrigerant pipeline 3 to pass through, through the heat that high temperature exhaust distributes in refrigerant pipeline 3 can effectively reach the purpose of snow melting, deicing, utilizes the refrigerant in refrigerant pipeline 3 to clear away ice on the chassis, and is safe, swift, effective. Moreover, the refrigerant pipeline 3 is not influenced by the outdoor environment, can normally work under the condition of low outdoor temperature (lower than minus 10 ℃) and effectively removes ice. Refrigerant pipeline 3 still has simple structure, long service life, need not additionally to increase control logic, does not relate to the advantage of electrical safety problem.
In addition, the refrigerant pipeline 3 is connected in parallel with the outdoor heat exchanger and serves as a branch of the outdoor heat exchanger, which is equivalent to the extension of the heat exchange area of the outdoor heat exchanger, so that the heat exchange area in the outdoor unit is increased, and when the air conditioner performs refrigeration and heating, the refrigerant passes through the refrigerant pipeline 3, so that the refrigeration and heating effects of the air conditioner can be improved.
Further, the mounting plate 4 has a first side 403 and a second side 404 opposite to each other, and the refrigerant pipe 3 is a bent pipe that is bent between the first side 403 and the second side 404. Preferably, the refrigerant pipeline 3 is a serpentine pipe. The serpentine structure of the refrigerant pipeline 3 can increase the heat exchange area of the refrigerant pipeline 3 and improve the heat exchange effect of the refrigerant pipeline 3.
Furthermore, the refrigerant pipeline 3 is horizontally paved on an interlayer between the upper bottom 1 and the lower bottom 2 of the chassis, so that on one hand, ice at all positions of the chassis can be eliminated; on the other hand, the heat exchange area of the refrigerant pipeline 3 can be further increased, and the heat exchange effect is improved.
Further, the refrigerant pipeline 3 has a refrigerant pipeline inlet 301 and a refrigerant pipeline outlet 302, the refrigerant pipeline inlet 301 is communicated with a discharge pipeline of the outdoor unit of the air conditioner, and the refrigerant pipeline outlet 302 is communicated with a return air port of the outdoor unit of the air conditioner. The refrigerant pipeline inlet 301 of the refrigerant pipeline 3 is connected with an exhaust pipeline, so that the refrigerant in the exhaust pipeline can be guided into the refrigerant pipeline 3, and ice on the chassis is eliminated during defrosting; when in refrigeration or heating, the outdoor heat exchanger is used as a branch circuit to improve the refrigeration or heating effect of the air conditioner.
Preferably, the refrigerant pipeline inlet 301 is communicated with a discharge port of the compressor.
Furthermore, the refrigerant pipeline 3 may be configured as a branch structure, that is, the refrigerant pipeline 3 has one refrigerant pipeline inlet 301 and one refrigerant pipeline outlet 302; the refrigerant pipeline 3 may also be configured as a multi-branch structure, that is, the refrigerant pipeline 3 has at least two refrigerant pipeline inlets 301 and at least two refrigerant pipeline outlets 302.
Further, a first drain hole 101 is formed in the upper bottom 1 of the chassis, accumulated water on the upper bottom 1 of the chassis flows into the lower bottom 2 of the chassis through the first drain hole 101, a second drain hole is formed in the lower bottom 2 of the chassis, and the accumulated water on the upper bottom 2 of the chassis is discharged out of the air conditioner through the second drain hole.
Furthermore, a mounting plate 4 is arranged on the bottom 2 of the chassis, and the refrigerant pipeline 3 is arranged on the mounting plate 4. The mounting plate 4 is provided with a third drain hole 402, accumulated water on the mounting plate 4 can be drained to the lower bottom 2 of the chassis through the third drain hole 402, and then drained out of the air conditioner through the second drain hole.
Further, a screw 401 is disposed on the chassis base 2, and the screw 401 is configured to fixedly connect the chassis base 2 with the mounting plate 4.
Further, the upper bottom 1 of the base plate is universal with the base plate of the existing air conditioner outdoor unit, and the upper bottom 1 of the base plate has the same structure with the base plate of the existing air conditioner outdoor unit.
Example 2
An air conditioner comprises the air conditioner outdoor unit.
Example 3
The control method of the air conditioner comprises the steps that the air conditioner outdoor unit in embodiment 1 is adopted to heat the air conditioner, when defrosting is carried out, a refrigerant pipeline inlet 301 of a refrigerant pipeline 3 is communicated with an exhaust pipeline of the air conditioner outdoor unit, a refrigerant pipeline outlet 302 of the refrigerant pipeline 3 is communicated with an air return port of the air conditioner outdoor unit, the refrigerant pipeline 3 can guide high-temperature refrigerants discharged by the exhaust pipeline into the refrigerant pipeline 3, and ice on a chassis is eliminated through heat dissipated by the high-temperature refrigerants.
During refrigeration and heating, the refrigerant pipeline inlet 301 of the refrigerant pipeline 3 is communicated with the exhaust pipeline, the refrigerant pipeline outlet 302 of the refrigerant pipeline 3 is communicated with the air return port, the refrigerant pipeline 3 can guide the refrigerant exhausted by the exhaust pipeline into the refrigerant pipeline 3, and the refrigerant exhausted by the exhaust pipeline exchanges heat with the outside air through the refrigerant pipeline 3.
Specifically, the refrigerant pipeline 3 is connected in parallel with the outdoor heat exchanger and serves as a branch of the outdoor heat exchanger, which is equivalent to the extension of the heat exchange area of the outdoor heat exchanger, so that the heat exchange area in the outdoor unit is increased, and when the air conditioner performs refrigeration and heating, the refrigerant passes through the refrigerant pipeline 3, so that the refrigeration and heating effects of the air conditioner can be improved. When the air conditioner refrigerates, a high-temperature refrigerant passes through the refrigerant pipeline 3, and the refrigerant pipeline 3 is used as a condenser for heat dissipation, so that the heat dissipation area of the air conditioner during refrigeration is increased, and the refrigeration effect of the air conditioner is improved; when the air conditioner heats, a low-temperature refrigerant passes through the refrigerant pipeline 3, and the refrigerant pipeline 3 absorbs heat as an evaporator, so that the heat absorption area of the air conditioner during heating is increased, and the heating effect of the air conditioner is improved. Through the refrigerant pipeline 3, not only the energy consumption of the air conditioner is reduced, but also the refrigeration and heating effects of the air conditioner are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. An outdoor unit of an air conditioner is characterized by comprising a compressor, an outdoor heat exchanger and a base plate, wherein the base plate comprises an upper base plate (1) and a lower base plate (2) which are arranged from top to bottom, an interlayer is arranged between the upper base plate (1) and the lower base plate (2), a refrigerant pipeline (3) is arranged in the interlayer, the refrigerant pipeline (3) is connected with the outdoor heat exchanger in parallel, a mounting plate (4) is arranged on the lower base plate (2), the refrigerant pipeline (3) is arranged on the mounting plate (4), and a third drain hole (402) is arranged on the mounting plate (4);
the air conditioner outdoor unit heats the chassis by adopting the following control method:
during refrigeration and heating, a refrigerant pipeline inlet (301) of the refrigerant pipeline (3) is communicated with an exhaust pipeline of an air conditioner outdoor unit, a refrigerant pipeline outlet (302) of the refrigerant pipeline (3) is communicated with a gas return port of the air conditioner outdoor unit, the refrigerant pipeline (3) can guide the refrigerant discharged by the exhaust pipeline into the refrigerant pipeline (3), and the refrigerant discharged by the exhaust pipeline exchanges heat with the outside air through the refrigerant pipeline (3).
2. The outdoor unit of claim 1, wherein the mounting plate (4) has a first side (403) and a second side (404) opposite to each other, and the refrigerant pipe (3) is a bent pipe that is bent between the first side (403) and the second side (404).
3. The outdoor unit of claim 1, wherein the refrigerant pipe (3) has a refrigerant pipe inlet (301) and a refrigerant pipe outlet (302), the refrigerant pipe inlet (301) is connected to a discharge pipe of the outdoor unit, and the refrigerant pipe outlet (302) is connected to a return air port of the outdoor unit.
4. The outdoor unit of claim 3, wherein the refrigerant pipe (3) has a branched structure, and the refrigerant pipe (3) has one of the refrigerant pipe inlets (301) and one of the refrigerant pipe outlets (302).
5. The outdoor unit of claim 3, wherein the refrigerant pipe (3) has a multi-branch structure, and the refrigerant pipe (3) has at least two refrigerant pipe inlets (301) and at least two refrigerant pipe outlets (302).
6. An air conditioner characterized by comprising the outdoor unit of air conditioner as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365068.4A CN111197819B (en) | 2018-11-16 | 2018-11-16 | Air conditioner outdoor unit, air conditioner and control method of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811365068.4A CN111197819B (en) | 2018-11-16 | 2018-11-16 | Air conditioner outdoor unit, air conditioner and control method of air conditioner |
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| Publication Number | Publication Date |
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| CN111197819A CN111197819A (en) | 2020-05-26 |
| CN111197819B true CN111197819B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811365068.4A Active CN111197819B (en) | 2018-11-16 | 2018-11-16 | Air conditioner outdoor unit, air conditioner and control method of air conditioner |
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| CN111197819A (en) | 2020-05-26 |
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