CN114152003B - air conditioner - Google Patents

air conditioner Download PDF

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Publication number
CN114152003B
CN114152003B CN202111037584.6A CN202111037584A CN114152003B CN 114152003 B CN114152003 B CN 114152003B CN 202111037584 A CN202111037584 A CN 202111037584A CN 114152003 B CN114152003 B CN 114152003B
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CN
China
Prior art keywords
panel
disposed
heat exchanger
outdoor unit
cooling water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111037584.6A
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Chinese (zh)
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CN114152003A (en
Inventor
尹晋湖
金志垣
李熙范
金大原
金汶谦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN114152003A publication Critical patent/CN114152003A/en
Application granted granted Critical
Publication of CN114152003B publication Critical patent/CN114152003B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F25B41/40—Fluid line arrangements
    • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • 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
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • 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
    • F24F1/26—Refrigerant piping
    • F24F1/28—Refrigerant piping for connecting several separate outdoor units
    • 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
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • 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
    • 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
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
    • 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
    • F25B2327/00—Refrigeration system using an engine for driving a compressor
    • 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
    • F25B2327/00—Refrigeration system using an engine for driving a compressor
    • F25B2327/001—Refrigeration system using an engine for driving a compressor of the internal combustion type
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/08—Exceeding a certain temperature value in a refrigeration component or cycle
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations
    • 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2507—Flow-diverting valves
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2509—Economiser valves

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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 present invention relates to an air conditioner, comprising: a first outdoor unit including an engine driven by combustion of fuel and a compressor operated by driving of the engine; a second outdoor unit including an outdoor heat exchanger configured to exchange heat between the refrigerant discharged from the compressor and outdoor air, a cooling water pump configured to supply cooling water to the engine, and a radiator configured to exchange heat between the cooling water and the outdoor air, the second outdoor unit being disposed apart from the first outdoor unit; a first refrigerant pipe configured to be exposed to the outside of the first and second outdoor units and connected to the compressor; and a cooling water pipe configured to be exposed to the outside of the first outdoor unit and the second outdoor unit, and to connect the engine and the cooling water pump.

Description

Air conditioner
Technical Field
The present invention relates to an air conditioner, and more particularly, to an air conditioner in which a compressor is driven by an engine.
Background
An air conditioner is a device that cools or heats an indoor space by using a heat pump cycle including a compressor, an outdoor heat exchanger, an expansion mechanism, and an indoor heat exchanger.
In the heat pump cycle, a compressor needs to be driven to circulate the refrigerant, and air conditioners can be classified into EHP (Electric Heat Pump ) systems and GHP (Gas engine driven Heat Pump, gas heat pump) systems according to a driving system of the compressor.
The GHP system is a system in which a compressor is driven by an engine using gas as fuel. The fuel consumption rate is low, and the refrigerating and heating capacity can be increased, so that the fuel is suitable for industrial or large-scale buildings.
Korean laid-open patent No. KR10-2019-0051347 discloses a GHP type air conditioner. However, the air conditioner disclosed in the above document has a structure in which an engine and a compressor are disposed in a single device together with a plurality of components such as an outdoor heat exchanger and a radiator. Since the engine generates power by using the explosive force caused by the combustion of the gaseous fuel, vibration and noise are large, and since it generates heat by itself, performance or durability of other components including the outdoor heat exchanger is affected. In particular, since the heat exchanger has a structure in which a plurality of refrigerant pipes are connected to each other, in the case where vibration caused by the engine is directly transmitted to the heat exchanger, there is a possibility that a problem in that a portion where the plurality of refrigerant pipes are connected to each other is damaged or a gap is generated.
In addition, since the engine and the structure for supplying fuel to the engine or discharging burned gas occupy a large volume, there is a problem in that a space occupied by a structure related to the compressor or a structure for flowing cooling water is relatively small.
In addition, although the GHP outdoor unit is usually installed on a roof of a building or the like, the outdoor unit in which the engine is disposed is difficult to move due to a considerable weight, and the installation is limited due to an excessive load applied to a limited area.
A controller for controlling the engine and the structure related to the engine is disposed in the outdoor unit of the GHP. The components other than the engine and its associated components may be driven by another controller. The controller for controlling the components other than the engine and the components related thereto has a problem that the cost increases with the increase in the number.
In addition, in the GHP outdoor unit, the structure disposed inside the outdoor heat exchanger is difficult to access due to the outdoor heat exchanger, and there is a problem that maintenance work becomes difficult.
Disclosure of Invention
The present invention provides an air conditioner configured to minimize transmission of vibration caused by an engine to a heat pump other than a compressor.
Another object of the present invention is to provide an air conditioner having a structure in which an outdoor unit of the air conditioner is efficiently disposed.
Another object of the present invention is to provide an air conditioner in which a structure included in an outdoor unit of the air conditioner is effectively disposed. In particular, an air conditioner is provided which is configured to improve accessibility when maintaining a configuration disposed in a heat exchanger when a unit for disposing the heat exchanger is provided.
Another object of the present invention is to provide an air conditioner capable of reducing the cost by minimizing the number of controllers which are disposed in an outdoor unit and control the driving of constituent members.
Another object of the present invention is to provide an air conditioner in which a control box (box) which mainly requires maintenance and a connector to which a refrigerant pipe and a cooling water pipe are connected are disposed in a portion adjacent to a panel in an outdoor unit, thereby facilitating inspection and maintenance by an operator. Further, an air conditioner is provided which can rapidly cool heat generated in a control box.
The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.
In order to achieve the above object, an air conditioner according to an embodiment of the present invention includes: a first outdoor unit including an engine driven by combustion of fuel and a compressor operated by the driving of the engine; a second outdoor unit that is disposed apart from the first outdoor unit and includes an outdoor heat exchanger for exchanging heat between the refrigerant discharged from the compressor and outdoor air, a cooling water pump for supplying cooling water to the engine, and a radiator for exchanging heat between the cooling water and the outdoor air; a first refrigerant pipe configured to be exposed to the outside of the first outdoor unit and the second outdoor unit, and to connect the compressor and the switching valve; and a cooling water pipe that is disposed so as to be exposed to the outside of the first outdoor unit and the second outdoor unit, and that connects the engine and the cooling water pump, whereby the cooling water pump and the radiator can be disposed together in the second outdoor unit.
The second outdoor unit includes: a plate-shaped heat exchanger for exchanging heat between the cooling water and the refrigerant; a first valve for flowing cooling water discharged from the engine to the plate-shaped heat exchanger or the radiator; and a second valve for flowing cooling water discharged from the engine to the first valve or the cooling water pump; the cooling water pump is disposed between the plate heat exchanger and the radiator, whereby the cooling water pump can be disposed adjacent to the radiator and the plate heat exchanger.
The second outdoor unit includes a second casing forming an external appearance of the second outdoor unit, a suction port formed at an outer peripheral surface of the second casing, and a discharge port formed at an upper side of the second casing, the second casing including: a front panel disposed in front of the second housing; a rear panel disposed behind the front panel in a spaced relation to the front panel; and a pair of side panels connecting both ends of the front panel and the rear panel, respectively, the front panel including: a first half panel, wherein a second control box is arranged on the inner side of the first half panel; and a second half panel disposed on one side of the first half panel, wherein the outdoor heat exchanger is disposed inside the second half panel.
The outdoor heat exchanger includes: a front heat exchanger disposed inside the front panel; a first side heat exchanger bent from the front heat exchanger and extending rearward; a rear heat exchanger disposed inside the rear panel and extending from the first side heat exchanger; and a second side heat exchanger bent from the rear heat exchanger and extending forward, wherein the front heat exchanger is disposed behind the second half panel, whereby the first half panel can be used for maintaining the internal structure disposed inside the outdoor heat exchanger.
The cooling water pump may be disposed behind the second half-panel and closer to the reference line than the first side heat exchanger, and thus may be disposed at a position where maintenance is easy.
The cooling water pump may be disposed at a position forward of an imaginary horizontal line extending in the left-right direction from the center in the front-rear direction and dividing the second outdoor unit in the front-rear direction, thereby being disposed at a position where maintenance is easy.
The first outdoor unit may include a first control box in which a first controller for controlling the operation of the engine is built, and the second outdoor unit includes a supply fan and a second control box in which a second controller for controlling the operation of the supply fan or the cooling water pump is built, whereby the first controller may control the components related to the engine and the second controller may control the remaining components.
The second outdoor unit includes a switching valve for flowing the refrigerant discharged from the compressor to the outdoor heat exchanger or to an indoor heat exchanger exchanging heat with air of an indoor space, and the second controller adjusts the flow of the refrigerant discharged from the compressor by controlling the switching valve, whereby the second controller can control the switching valve.
The second outdoor unit includes: a second casing forming an external appearance of the second outdoor unit, a suction port being formed on an outer peripheral surface of the second casing, and a discharge port being formed on an upper side of the second casing; and an orifice which is arranged at the upper end of the second housing and forms a discharge flow path for air flowing through the blower fan; the blower fan is disposed inside the orifice, and causes air present in the second casing to flow from the suction port to the discharge port, and the second control box is disposed below the orifice, whereby air flowing to the second control box can be formed.
The second casing includes a second panel disposed in an area where the outdoor heat exchanger is not disposed, a second connector is disposed on the second panel, a plurality of refrigerant pipes and a plurality of cooling water pipes for connecting the first outdoor unit and the second outdoor unit are connected to the second connector, and the second control box is disposed inside the second panel, thereby facilitating access to the second control box.
An opening communicating with the second control box disposed inside the second protective panel is formed in the second protective panel, and a second cover for opening and closing the opening is disposed in the second protective panel, whereby the inside of the second control box can be easily accessed.
The first housing includes: a first base covering the lower side of the first housing; a first peripheral panel disposed on an upper side of the first chassis and covering a peripheral surface of the first housing; and a first upper panel disposed on an upper side of the first peripheral panel and formed with an exhaust port; the engine is fixed to the first base, and the first control box is disposed closer to the upper panel than the engine, whereby the first control box can be disposed at a position farther from the engine.
The first peripheral panel includes a first maintenance panel, a first connector is disposed on the first maintenance panel, a plurality of refrigerant pipes and a plurality of cooling water pipes for connecting the first outdoor unit and the second outdoor unit are connected to the first connector, the first control box is disposed on the inner side of the first maintenance panel, a first cover for opening and closing an opening is disposed on the first maintenance panel, and the opening is formed to communicate with the inner side of the first control box disposed on the inner side of the first maintenance panel, thereby enabling easy maintenance of the first control box.
Specific details of other embodiments are included in the detailed description and the accompanying drawings.
The air conditioner according to the present invention has one or more of the following effects.
First, the first outdoor unit provided with the compressor driven by the engine and the second outdoor unit provided with the plurality of heat exchangers are arranged to be spaced apart from each other, whereby vibration generated by the engine and transmitted to the second outdoor unit can be minimized, and reliability of the outdoor heat exchanger can be ensured.
Secondly, the radiator, the plate heat exchanger and the cooling water pump are adjacently disposed in the second outdoor unit, thereby ensuring the flow rate of the cooling water, and further having the advantage of enabling the heat exchange on the radiator or the plate heat exchanger to be rapidly achieved.
Third, by adjusting the arrangement of the internal components arranged inside the outdoor heat exchanger, maintenance of the internal components arranged inside the outdoor heat exchanger can be facilitated.
Fourth, the present invention has a configuration in which a first controller for controlling the engine and the configuration related to the engine is disposed in the first outdoor unit, and a second controller for controlling the operation of the blower fan and the cooling water pump is disposed in the second outdoor unit. When the first outdoor unit is configured by adding the cooling water pump or the like, it is necessary to provide a controller that performs operation control independently of the engine, but by the arrangement described above, the number of controllers can be minimized, and the cost can be reduced.
Fifth, the maintenance panel for configuring the control box is included, and the control box can be easily maintained through a separate opening portion provided to the maintenance panel without separating the maintenance panel. In addition, the control box can be arranged at a position away from the heat source in the outdoor unit or in a region where the air flow is active, whereby the control box can be kept at a low temperature.
The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.
Drawings
Fig. 1 is a system diagram of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a perspective view of a first outdoor unit and a second outdoor unit of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a front view of a first outdoor unit and a second outdoor unit of an air conditioner according to an embodiment of the present invention.
Fig. 4 is a rear perspective view of a first outdoor unit according to an embodiment of the present invention.
Fig. 5 is a front view of a first outdoor unit according to an embodiment of the present invention.
Fig. 6 is a rear perspective view of the first outdoor unit according to an embodiment of the present invention with the peripheral panel removed.
Fig. 7 is a front perspective view of a first outdoor unit according to an embodiment of the present invention with a peripheral panel removed.
Fig. 8 is a side view of the first outdoor unit according to an embodiment of the present invention with the peripheral panel, the upper cover, and the frame removed.
Fig. 9 is a top view of a first outdoor unit according to an embodiment of the present invention with the peripheral panel, the upper cover, and the frame removed.
Fig. 10 is a rear perspective view of a second outdoor unit according to an embodiment of the present invention.
Fig. 11 is a front view of a second outdoor unit according to an embodiment of the present invention.
Fig. 12 is a front perspective view of a second outdoor unit according to an embodiment of the present invention with a peripheral panel removed.
Fig. 13 is a front perspective view of a second outdoor unit according to an embodiment of the present invention with the peripheral panel, the upper panel, and the blower fan removed.
Fig. 14 is a top view of a second outdoor unit according to an embodiment of the present invention with the peripheral panel, the upper panel, and the blower fan removed.
Fig. 15 is a rear view of a second outdoor unit according to an embodiment of the present invention with the peripheral panel, the upper panel, the blower fan, the outdoor heat exchanger, and the radiator removed.
Fig. 16 is a front perspective view of a second outdoor unit according to an embodiment of the present invention with the peripheral panel, the upper panel, the blower fan, the outdoor heat exchanger, and the radiator removed.
Fig. 17 is a diagram for explaining the relationship between the first outer refrigerant pipe and the outer cooling water pipe according to an embodiment of the present invention.
Fig. 18 is a system diagram of an air conditioner according to another embodiment of the present invention.
Description of the reference numerals
100: the first outdoor unit 110: first shell body
112: first base 114: first frame
122: first peripheral panel 123: first maintenance panel
124: the first connector 126: first upper panel
128: exhaust port 130: upper cover
140: engine 144: engine frame
146: damper 150: compressor with a compressor body having a rotor with a rotor shaft
160: air purifier 162: zero speed regulator
164: the mixer 166: exhaust gas heat exchanger
168: muffler 170: drainage filter
172: oil tank 174: oil pump
180: first control box 182: circuit box
200: the second outdoor unit 210: second shell
212: second base 218: second frame
220: second peripheral panel 222: second connector
223: second fascia 226: second upper panel
230: an air supply fan 232: second upper grid
238: cooling water pump 240: outdoor heat exchanger
242: switching valve 244: oil separator
246: reservoir 248: plate heat exchanger
250: radiator 254: cooling water tank
256: second control box 300: refrigerant tube
310: first outer refrigerant tube 320: second external refrigerant tube
330: first inner refrigerant tube 340: second inner refrigerant tube
400: cooling water pipe 410: external cooling water pipe
420: first inner cooling water pipe 430: second internal cooling water pipe
Detailed Description
The advantages, features and methods of implementing the present invention will become more apparent from the following detailed description of embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various shapes different from each other, which are provided only for fully disclosing the present invention and for fully disclosing the scope of the present invention to one of ordinary skill in the art, and only determining the scope of the present invention by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
The front F, rear R, left Le, right Ri, upper U, and lower D shown in fig. 2 to 17 are for explaining the air conditioner of the present embodiment. Thus, the direction setting may change as the reference becomes different.
The present invention will be described below with reference to the drawings for explaining an air conditioner by way of examples of the present invention.
< integral Structure >
Referring to fig. 1, an air conditioner of the present invention includes: a first outdoor unit 100 for driving the engine 140 and the compressor 150 using a gaseous fuel; a second outdoor unit 200 for exchanging heat between the outdoor air and the refrigerant discharged from the compressor 150, or between the outdoor air and the cooling water for cooling the engine 140; a cooling water pipe 400 connecting the first outdoor unit 100 and the second outdoor unit 200 and allowing cooling water to flow; and a first outer refrigerant pipe (or first refrigerant pipe) 310 for connecting the first outdoor unit 100 and the second outdoor unit 200 and for flowing a refrigerant.
The air conditioner of the present invention includes at least one indoor unit (not shown) connected to the second outdoor unit 200, and includes a second external refrigerant pipe (or a second refrigerant pipe) 320 for connecting the second outdoor unit 200 and the indoor unit and allowing a refrigerant to flow.
The first outdoor unit 100 and the second outdoor unit 200 are disposed apart from each other. The first outdoor unit 100 and the second outdoor unit 200 are connected through a cooling water pipe 400 and a first outer refrigerant pipe 310. Accordingly, vibration caused by the driving of the engine 140 and the compressor 150 included in the first outdoor unit 100 can be transmitted to the second outdoor unit 200 to a minimum extent.
< first outdoor Unit >
The first outdoor unit 100 includes: an engine 140 (refer to fig. 6 to 7) driven by combustion of a gaseous fuel; a compressor 150 (refer to fig. 6) connected to the engine 140 through a driving belt 152 and configured to compress a refrigerant; and a first casing 110 (refer to fig. 4 to 5) for forming an external appearance of the first outdoor unit 100, wherein a space for disposing the engine 140 and the compressor 150 is formed inside the first casing 110.
The first housing 110 may include: a first base 112 (refer to fig. 4) covering the lower side of the first housing 110; a first frame 114 (see fig. 6) which is vertically disposed along an upper side of the first base 112 and forms a skeleton; a first peripheral panel 122 (see fig. 4) disposed on the upper side of the first base 112, connected to the first frame 114, and covering the peripheral surface; and a first upper panel 126 (refer to fig. 6) disposed on an upper side of the first peripheral panel 122 and formed with an exhaust port 128.
Referring to fig. 6, the first base 112 may be fixed to the ground and fix a structure disposed inside the first housing 110. The first base 112 may include: a first base panel 116; a first base support 118 disposed on the lower side of the first base panel 116 and configured to space the first base panel 116 toward the upper side from the ground; and a first base frame 120 disposed on the upper side of the first base panel 116, and a part of which is fixed to the first base frame 120.
Referring to fig. 8, the first chassis 112 may include two first chassis frames 120, and the first chassis frames 120 are disposed apart from each other at an upper side of the first chassis panel 116. The first base frame 120 has a cross section formed in a general shape of a letter , and both ends thereof are fixed to the first base panel 116. Since the first base frame 120 is fixed to the first base panel 116 at both ends of the bend, vibration generated by a damper (damper) 146 described later can be relieved and then transferred to the first base panel 116.
Referring to fig. 7, the first frames 114 may be disposed at corners of the first base panel 116, respectively. The first peripheral panel 122 is connected to the first frames 114 spaced apart from each other, and is configured to cover the circumferential surface of the first outdoor unit 100.
Referring to fig. 7, the first frame 114 may include: a plurality of first corner frames 114a disposed at respective corners of the first base 112; and a first intermediate frame 114b disposed between the first corner frames 114 a.
The first peripheral panel 122 includes: a first front panel 122a disposed on one side of the first peripheral panel 122; a first rear panel 122b disposed apart from the first front panel 122a and disposed in parallel with the first front panel 122 a; and two first side panels 122c, 122d disposed between the first front panel 122a and the first rear panel 122 b. Referring to fig. 4 to 5, the first front panel 122a and the first rear panel 122b may have the same size, and the two first side panels 122c, 122d may have the same size as each other.
Referring to fig. 5, the first front panel 122a may be divided into a 1-1 st half panel (half panel) 122a1 and a 1-2 nd half panel 122a2, the 1-1 st half panel 122a1 and the 1-2 nd half panel 122a2 being disposed in the left-right direction across the first middle frame 114 b.
The first peripheral panel 122 may include a first maintenance panel 123, and a first connector 124 is disposed on the first maintenance panel 123, and the first outer refrigerant pipe 310 and the outer cooling water pipe (or cooling water pipe) 410 are connected to the first connector 124. Referring to fig. 5, the 1 st-2 nd half panel 122a2 may be used as the first maintenance panel 123. The first maintenance panel 123 is disposed between the first intermediate frame 114b and the first corner frame 114 a. A first control box 180 described later may be disposed inside the first maintenance panel 123.
That is, by detachably disposing the first maintenance panel 123, accessibility of the first control box 180 can be improved. In addition, the refrigerant pipe 300 and the cooling water pipe 400 connected to the first connector 124 disposed on the first maintenance panel 123 can be easily maintained.
The first connector 124 is disposed on the first maintenance panel 123, and the first outer refrigerant pipe 310 and the outer cooling water pipe 410 are connected to the first connector 124. The first connector 124 is disposed at the lower end of the first maintenance panel 123.
An opening is formed in the first maintenance panel 123, and a first cover 125a for covering the opening is disposed, the opening communicating with the inside of the first control box 180 disposed inside the first maintenance panel 123. The first cover 125a may be disposed at an upper end portion of the first maintenance panel 123, and thus may open and close an opening portion communicating with the first control box 180.
The first control box 180 is disposed at the upper end of the first maintenance panel 123. That is, the first control box 180 is disposed at the upper end portion of the first maintenance panel 123 so as to be spaced apart from the engine 140, whereby heat generated by the engine 140 can be transmitted to the first control box 180 to a minimum extent.
Referring to fig. 5, an opening communicating with the inside of the circuit box 182 disposed inside the 1 st half panel 122a1 may be formed in the 1 st half panel 122a1 and a third cover 125b may be disposed to cover the opening. The third cover 125b may be disposed at the lower end of the 1 st half panel 122a1, and thus may open and close an opening communicating with the circuit box 182.
Referring to fig. 6, an exhaust port 128 for exhausting air heated by the engine 140 is formed at the first upper panel 126, but an additional fan is not provided. In addition, an upper cover 130 may be disposed at the first upper panel 126, and the upper cover 130 serves to prevent external moisture from flowing in through the exhaust port 128. In addition, an exhaust port 128 may be provided at the first upper panel 126, the exhaust port 128 being for discharging the gas discharged from the engine 140 to the outside.
On the upper side of the first upper panel 126, a first upper grid 132 for covering the upper side of the first upper panel 126 may be provided. The first upper grill 132 has a lattice pattern or a stripe pattern, thereby preventing external objects from falling down to the first upper panel 126 without impeding the flow of air.
The engine 140 is an internal combustion engine that operates by a process of combusting compressed gas. The engine 140 can rotate an engine-side pulley (pinion) 142 (see fig. 1) disposed on one side of the engine 140 through four processes of intake, compression, explosion, and exhaust.
Referring to fig. 7, the first outdoor unit 100 includes: an engine frame 144 that fixes the engine 140 on an upper side of the first pedestal 112; and a damper 146 connecting the engine frame 144 and the first base 112 and for relieving vibrations generated by the action of the engine 140. The first outdoor unit 100 includes a plurality of dampers 146. Referring to fig. 6 to 7, four dampers 146 may be arranged to be spaced apart from each other.
Each of the plurality of dampers 146 may connect the engine frame 144 with the first base 112. A lower end portion of each of the plurality of dampers 146 may be coupled to the first base frame 120, and an upper end portion of each of the plurality of dampers may be coupled to the engine frame 144.
One side of the engine frame 144 may be coupled to the engine 140 and the other side thereof may be coupled to a damper 146. Accordingly, the vibration generated by the engine 140 can be transmitted to the entire first housing 110 with a minimum degree.
The engine frame 144 may fix the configuration of the compressor 150 connected to the engine 140 via the belt 152. That is, the engine frame 144 may be disposed with the engine 140 and the compressor 150 spaced apart from the first mount 112 by a predetermined interval.
The compressor 150 may be connected to the engine 140 and compress a refrigerant when the engine 140 is operated. Two compressors 150 connected to the engine 140 may be disposed in the first outdoor unit 100. The compressor 150 includes a compressor-side pulley 154, and the compressor-side pulley 154 is connected to the engine-side pulley 142 via a transmission belt 152, and the compressor-side pulley 154 (see fig. 1) is rotated by the operation of the engine 140, whereby the refrigerant can be compressed.
Referring to fig. 6 to 7, the first outdoor unit 100 may include: an air cleaner 160 that provides clean air by filtering air to be supplied to the engine 140; a zero governor (162) that supplies gas to the engine 140 at a prescribed pressure; a mixer (mixer) 164 that mixes the air supplied via the air cleaner 160 and the gas supplied via the zero governor 162; an exhaust gas heat exchanger 166 that exchanges heat between the gas exhausted from the engine 140 and cooling water; a muffler 168 for reducing noise of the gas discharged from the engine 140; and a drain filter 170 for purifying and discharging condensed water generated in the exhaust gas passing through the muffler 168.
The zero governor 162 always supplies the fuel at a predetermined pressure regardless of a change in the pressure or flow rate of the fuel flowing into the zero governor 162. The zero governor 162 can obtain a stable outlet pressure over a wide range and regulate the pressure of the gaseous fuel supplied to the engine to an almost constant atmospheric pressure profile.
The air cleaner 160 may block the mixing of dust and mist-like moisture and oil into the external air supplied to the engine using a filter.
The mixer 164 discharges the supplied fuel and air at a prescribed mixing ratio and supplies it to the engine.
The zero governor 162 may be fixedly disposed at one side of the first frame 114. The air purifier 160 is disposed adjacent to the zero governor 162. The air purifier 160 may be secured to the first upper panel 126 by an additional securing member 184.
The muffler 168 may be fixedly disposed at one side of the first frame 114. The muffler 168 is disposed above the drain filter 170, and condensed water generated in the muffler 168 can flow into the drain filter 170. The drain filter 170 may be fixedly disposed on the first chassis 112. Referring to fig. 7, the drain filter 170 may be fixedly disposed at an upper side of the first base frame 120. The exhaust gas outlet 134 may be disposed at an upper side of the muffler 168. Accordingly, the exhaust gas passing through the muffler 168 can be discharged to the outside via the exhaust gas outlet 134.
The first outdoor unit 100 includes: a tank 172 for storing oil; and an oil pump 174 for supplying the oil stored in the oil tank 172 to the engine. The oil pump 174 may preheat or cool the engine 140 by supplying oil stored in the oil tank 172 to the engine.
The oil tank 172 may be fixedly disposed on the upper side of the first base panel 116. The oil tank 172 may be disposed between the two first base frames 120 disposed apart from each other.
The first outdoor unit 100 includes: a first control box 180, a first controller (not shown) for adjusting the driving of the engine 140 or the compressor 150 is built in the first control box 180; and a circuit box 182, a transformer (not shown) is disposed in the circuit box 182, and the transformer is used for changing the current signal and the voltage signal.
The first control box 180 is disposed apart from the engine 140. Referring to fig. 7, the engine 140 is fixedly disposed on the first base 112, and the first control box 180 is disposed adjacent to the first upper panel 126. The first control box 180 is disposed to be maximally spaced apart from the engine 140 in an inner space formed by the first peripheral panel 122, the first base 112, and the first upper panel 126. Thereby, the heat generated by the engine 140 and transferred to the first control box 180 can be minimized.
The first control box 180 is disposed behind the first maintenance panel 123. The first control box 180 is disposed between the first intermediate frame 114b and the first corner frame 114a, and is fixed to the first intermediate frame 114b and the first corner frame 114a, respectively.
< second outdoor Unit >
The second outdoor unit 200 includes: a second casing 210 (see fig. 10) for forming an external appearance of the second outdoor unit 200, the second casing 210 having a second suction port 221b formed in an outer peripheral surface thereof and a discharge port formed in an upper side of the second casing 210; a blower fan 230 (see fig. 10) for blowing air inside the second casing 210 to the outlet 226 a; a fan motor M (see fig. 1) for rotating the blower fan 230; an outdoor heat exchanger 240 (see fig. 10) disposed inside the second casing 210 in which the second suction port 221b is formed; a cooling water pump 238 (see fig. 12) disposed inside the second casing 210 for supplying cooling water to the engine 140 or the exhaust gas heat exchanger 166; and a switching valve 242 (refer to fig. 13) disposed inside the second housing 210 for supplying the refrigerant discharged from the compressor 150 to the outdoor heat exchanger 240 or the indoor unit.
The second housing 210 may include: a second base 212 (see fig. 12) covering the lower side of the second housing 210; a second frame 218 (see fig. 12) disposed vertically toward the upper side of the second base 212, and forming a skeleton; a second peripheral panel 220 (see fig. 10) disposed on the upper side of the second base 212, connected to the second frame 218, and covering the peripheral surface; and a second upper panel 226 (see fig. 12) disposed above the second peripheral panel 220 and having a discharge port 226a formed therein.
The second base 212 includes: a second base panel 214; and a second base support 216 disposed at a lower side of the second base panel 214 and configured to space the second base panel 214 toward an upper side from the ground.
The second frames 218 may be disposed at corners of the second base panel 214, respectively. The second peripheral panel 220 may be configured to be connected with the second frames 218 spaced apart from each other to cover the periphery of the second outdoor unit 200.
The second frame 218 may include: a plurality of second corner frames 218a (see fig. 12) disposed at the corners of the second base 212; and a second intermediate frame (not shown) disposed between the second corner frames 218 a.
Referring to fig. 10 to 11, the second peripheral panel 220 includes: a second front panel 220a disposed on one side of the second peripheral panel 220; a second rear panel 220b disposed apart from the second front panel 220a and disposed parallel to the second front panel 220 a; and two second side panels 220c, 220d disposed between the second front panel 220a and the second rear panel 220 b. The second front panel 220a and the second rear panel 220b may have the same size, and the two second side panels 220c, 220d may have the same size as each other.
Referring to fig. 11, the second front panel 220a may be divided into a 2-1 st half panel 220a1 and a 2-2 nd half panel 220a2 arranged in the left-right direction when viewed from the front.
The second peripheral panel 220 may include a second panel 223, a second connector 222a is disposed on the second panel 223, and the first outer refrigerant pipe 310 and the outer cooling water pipe 410 are connected to the second connector 222a. Referring to fig. 11, a 2-2 half panel 220a2 may be used as a second protective panel 223. The second protective panel 223 is disposed between the second corner frame 218a and the second intermediate frame 218 b. A second control box 256, which will be described later, may be disposed inside the second protective panel 223.
Referring to fig. 11, a second connector 222a is disposed on the second protective panel 223, and the first outer refrigerant pipe 310 and the outer cooling water pipe 410 are connected to the second connector 222a. The second connector 222a is disposed at the lower end of the second protective panel 223.
Referring to fig. 11, a third connector 222b may be provided at the second protective panel 223, and a second external refrigerant pipe 320 is connected to the third connector 222b. The third connector 222b is disposed apart from the second connector 222a along one side direction and at the same height as the second connector 222a.
An opening communicating with the inside of the second control box 256 disposed inside the second protective panel 223 is formed in the second protective panel 223, and a second cover 225 is disposed to cover the opening. The second cover 225 is disposed at an upper end portion of the second protective panel 223, and can open and close an opening communicating with the second control box 256.
The second control box 256 may be disposed at an upper end of the second protective panel 223. That is, the second control box 256 is disposed adjacent to the blower fan 230 disposed at the upper portion of the second peripheral panel 220, so that convection of air can be rapidly formed around the second control box 256, thereby cooling the second control box 256.
At least one discharge port 226a is formed in the second upper panel 226. Referring to fig. 12, two discharge ports 226a are formed in the second upper panel 226, and a blower fan 230 is disposed below each discharge port 226a. On the lower side of the second upper panel 226, an aperture (orifice) 228 for disposing a blower fan 230 is disposed.
A second upper grill 232 for covering the blower fan 230 and the second upper panel 226 is disposed on the upper side of the second upper panel 226.
Referring to fig. 10 to 11, a second suction port 221b for communicating the inside and the outside of the second case 210 is formed at the lower portion of the second peripheral panel 220, and a cover 221a for covering the outside of the blower fan 230 and the orifice 228 may be disposed at the upper side of the second suction port 221 b. The second protective panel 223 may be integrally formed with a cover portion without forming the suction port.
Referring to fig. 2 to 3, the second housing 210 may have the same size as the first housing 110. That is, the second base 212 included in the second housing 210 may have the same size as the first base 112 included in the first housing 110. In addition, the second peripheral panel 220 included in the second housing 210 may have the same size as the first peripheral panel 122 included in the first housing 110. As described above, as the first chassis 112 and the second chassis 212 have the same size and the first peripheral panel 122 and the second peripheral panel 220 have the same size, the respective configurations can be produced in the same manufacturing process. This can simplify the production process of the first housing 110 and the second housing 210, and can bring about the effect of reducing the cost.
The outdoor heat exchanger 240 is disposed inside the second suction port 221b formed in the second peripheral panel 220. The outdoor heat exchanger 240 may be disposed at least two sides of the second case 210 where the second peripheral panel 220 is disposed. The outdoor heat exchanger 240 may be configured to be parallel to four sides formed by the second peripheral panel 220.
Referring to fig. 14, the outdoor heat exchanger 240 includes: a front heat exchanger 240a disposed inside the second front panel 220 a; a first side heat exchanger 240b extending from the front heat exchanger 240a and disposed inside the second side panel 220 c; a rear heat exchanger 240c extending from the first side heat exchanger 240b and disposed inside the second rear panel 220 b; and a second side heat exchanger 204d extending from the rear heat exchanger 240c and disposed inside the other second side panel 220 d.
The size of the front heat exchanger 240a may be less than half the size of the rear heat exchanger 240 c. The second side heat exchanger 204d may be less than half the size of the first side heat exchanger 240 b.
The outdoor heat exchanger 240 is not disposed inside the second protective panel 223. Therefore, the outdoor heat exchanger 240 is not disposed inside the 2-1 th half panel 220a1 of the second front panel 220 a. That is, the front heat exchanger 240a is disposed inside the 2-2 half panel 220a 2.
The internal structure (Internal components) disposed inside the second outdoor unit 200 is disposed mainly behind the 2-1 half panel 220a 1. Here, the internal structure disposed inside the second outdoor unit 200 refers to a member disposed inside the second peripheral panel 220 except for the outdoor heat exchanger 240 and the radiator 250. That is, the internal configuration may include the reservoir 246, the plate heat exchanger 248, the cooling water tank 254, and the cooling water pump 238. The internal structure may include a switching valve 242 and cooling water valves 252a and 252b.
Referring to fig. 14, the reservoir 246, the plate-like heat exchanger 248, and the cooling water tank 254 are disposed in a region for disposing the second maintenance panel 223, with reference to an imaginary vertical line VC extending in the front-rear direction from the second intermediate frame 218 b.
The oil separator 244 and the cooling water pump 238 may be disposed in the opposite region of the second protective plate 223 with reference to the virtual vertical line VC, but may be disposed closer to the virtual vertical line VC than the first side heat exchanger 240 b.
The outdoor heat exchanger 240 may be disposed inside the second peripheral panel 220 at a portion other than the second protective panel 223. One end portion of the outdoor heat exchanger 240 may be formed inside the 2-2 half panel 220a2 of the second front panel 220a, and the other end portion may be formed inside the second side panels 220c, 220d disposed adjacent to the 2-1 half panel 220a 1.
A blower fan 230 is disposed above the outdoor heat exchanger 240, and the blower fan 230 causes air to flow toward the discharge port 226a formed in the second upper panel 226. An orifice 228 is disposed above the outdoor heat exchanger 240, and a flow of air flowing to the discharge port 226a is formed in the orifice 228, and a space for disposing the blower fan 230 is formed in the orifice 228.
The cooling water pump 238 may supply cooling water to the engine 140 and the exhaust gas heat exchanger 166, thereby enabling cooling of the engine 140 and the exhaust gas heat exchanger 166. The cooling water pump 238 may be fixedly disposed on the second base 212.
Referring to fig. 18, a cooling water pump 238 may be disposed at the first outdoor unit 100. Even if the cooling water pump 238 is disposed in the first outdoor unit 100, the additional cooling water pipe or the refrigerant pipe is not exposed to the outside of the first outdoor unit 100 and the second outdoor unit 200, and thus the cooling water pump 238 can be disposed in the first outdoor unit 100. However, as shown in fig. 1, the cooling water pump 238 is preferably disposed inside the second outdoor unit 200 so that the operations of the blower fan 230 and the cooling water pump 238 are controlled by the second controller.
The switching valve 242 is disposed inside the second casing 210, and supplies the refrigerant discharged from the compressor 150 to the outdoor heat exchanger 240 or the indoor unit. The switching valve 242 may supply the refrigerant received from the indoor unit or a plate heat exchanger 248 described later to the compressor 150. The switching valve 242 is connected to an oil separator 244 and a reservoir 246. Therefore, the refrigerant discharged from the compressor 150 and passing through the oil separator 244 can flow into the switching valve 242. In addition, the refrigerant flowing in the switching valve 242 may pass through the accumulator 246 and flow to the compressor 150. The switching valve 242 may use a four-way valve selectively connecting refrigerant pipes connected thereto in four directions.
Referring to fig. 1 and 14, the second outdoor unit 200 includes: an oil separator 244 that separates oil from the refrigerant discharged from the compressor 150; an accumulator 246 that separates refrigerant for supply to the compressor 150 and supplies gaseous refrigerant to the compressor 150; a plate heat exchanger 248 for heat-exchanging the cooling water and the refrigerant with each other; a radiator 250 for heat-exchanging cooling water with outdoor air; cooling water valves 252a, 252b for adjusting the flow direction of the cooling water; and a cooling water tank 254 for storing cooling water. The second outdoor unit 200 may further include: a supercooling heat exchanger 260 which expands and exchanges heat with a part of the flowing liquid refrigerant, thereby cooling the flowing liquid refrigerant; and an expansion valve 262 that expands the refrigerant discharged from the outdoor heat exchanger 240.
An oil separator 244 is disposed between switching valve 242 and compressor 150. Oil separator 244 separates oil from refrigerant from compressor 150. Oil separator 244 may be fixedly disposed on second base panel 214.
A reservoir 246 is disposed between the switching valve 242 and the compressor 150. The accumulator 246 separates the refrigerant flowing to the compressor 150 into a gaseous refrigerant and a liquid refrigerant, and supplies the gaseous refrigerant to the compressor 150. The reservoir 246 may be fixedly disposed on the second base panel 214. The reservoir 246 may be cylindrical in shape.
Referring to fig. 1, a refrigerant flowing from an indoor heat exchanger (not shown) through the four-way valve 242 or a refrigerant flowing through the plate heat exchanger 248 may be supplied to the accumulator 246. In addition, the accumulator 246 is connected to the supercooling heat exchanger 260, so that the refrigerant generated in the supercooling heat exchanger 260 can be supplied to the accumulator 246.
The plate heat exchanger 248 exchanges heat between the cooling water flowing through the cooling water pump 238 and the refrigerant flowing through the compressor 150. In a heating mode in which an indoor heat exchanger (not shown) disposed in the indoor unit is used as a condenser, the refrigerant flowing through the indoor heat exchanger (not shown) can flow into the plate heat exchanger 248. In the heating mode, the cooling water flowing through the cooling water pump 238 may flow to the plate heat exchanger 248 and be cooled.
The plate heat exchanger 248 exchanges heat between the refrigerant flowing in from the indoor heat exchanger (not shown) and the cooling water discharged from the engine 140. The plate-like heat exchanger 248 is connected to the first valve 252a and the cooling water pump 238, exchanges heat with the cooling water flowing in through the first valve 252a, and then supplies the cooling water to the cooling water pump 238. The plate heat exchanger 248 may exchange heat with the refrigerant flowing in from the indoor heat exchanger and supply it to the accumulator 246.
The plate heat exchanger 248 may be fixedly disposed on the second base panel 214. Referring to fig. 17, a plate heat exchanger 248 may be disposed between reservoir 246 and oil separator 244 when viewed from above.
The radiator 250 may heat-exchange the air flowing to the second suction port 221b with the cooling water, thereby reducing the temperature of the cooling water. The radiator 250 is disposed inside the outdoor heat exchanger 240. The area occupied by the radiator 250 in the direction of the second suction port 221b may be formed to be smaller than the area occupied by the outdoor heat exchanger 240 in the direction of the second suction port 221 b. Referring to fig. 13, the length 250L of the radiator 250 formed in the up-down direction may be formed to be smaller than the length 240L of the outdoor heat exchanger 240 formed in the up-down direction.
The radiator 250 includes a front radiator 250a disposed inside the front heat exchanger 240a, a first side radiator 250b disposed inside the first side heat exchanger 240b, a rear radiator 250c disposed inside the rear heat exchanger 240c, and a second side radiator 250d disposed inside the second side heat exchanger 204 d.
Referring to fig. 13, the cooling water valves 252a, 252b include: a first valve 252a that supplies cooling water discharged from the engine 140 to the plate heat exchanger 248 or the radiator 250; and a second valve 252b that supplies cooling water discharged from the engine 140 to the first valve 252a or the cooling water pump 238. The first valve 252a and the second valve 252b may use three-way valves that selectively supply the flowing cooling water in one of two directions.
Referring to fig. 12, the second outdoor unit 200 includes a second control box 256, and a second controller (not shown) for controlling the operations of the blower fan 230 and the cooling water pump 238 is built in the second control box 256.
The second control box 256 is disposed inside the second protective panel 223. A second controller for controlling the operations of the blower fan 230 and the cooling water pump 238 is disposed inside the second control box 256. That is, the operations of the blower fan 230 and the cooling water pump 238 can be controlled by one electric and electronic component. When the cooling water pump 238 is disposed inside the first outdoor unit 100, additional electric and electronic components for controlling the operation of the cooling water pump 238 may be required. In the present invention, the operation of the blower fan 230 and the cooling water pump 238 can be controlled together by the second controller disposed inside the second control box 256, so that the cost due to the additional components is not increased. The second controller may adjust the opening and closing of the switching valve 242 or the cooling water valves 252a and 252 b.
That is, the second controller may supply the refrigerant discharged from the compressor 150 to the outdoor heat exchanger 240 by adjusting the switching valve 242 when the air conditioner is in the cooling mode, and may supply the refrigerant discharged from the compressor 150 to the indoor heat exchanger by adjusting the switching valve 242 when the air conditioner is in the heating mode.
The second controller may supply the cooling water discharged from the engine 140 to the radiator 250 by adjusting the cooling water valves 252a and 252b when the air conditioner is in the cooling mode, and may supply the cooling water discharged from the engine 140 to the plate heat exchanger 248 by adjusting the cooling water valves 252a and 252b when the air conditioner is in the heating mode.
The configuration disposed inside the second outdoor unit 200 is disposed adjacent to an area that is not shielded by the outdoor heat exchanger 240.
Referring to fig. 14, the front heat exchanger 240a is configured to face the rear heat exchanger 240c. However, the length 240aL of the front heat exchanger 240a extending in the left-right direction may be less than half the length 240cL of the rear heat exchanger 240c extending in the left-right direction.
The first side heat exchanger 240b is disposed to face the second side heat exchanger 240d. However, the length 240dL of the second side heat exchanger 240d extending in the front-rear direction may be less than half the length 240bL of the first side heat exchanger 240b extending in the front-rear direction.
The length 240cL of the rear heat exchanger 240c extending in the left-right direction may be within 1.5 to 2 times the length 240bL of the first side heat exchanger 240b extending in the front-rear direction.
Areas that are not blocked by the outdoor heat exchanger 240 are formed at the front and right sides of the second outdoor unit 200.
Referring to fig. 14, the second outdoor unit 200 may be divided into four areas by an imaginary vertical line VC extending from the center of the left-right direction (Ri-Le) toward the front-rear direction (F-R) to divide the second outdoor unit 200 in the left-right direction and an imaginary horizontal line HC extending from the center of the front-rear direction (F-R) toward the left-right direction (Ri-Le) to divide the second outdoor unit 200 in the front-rear direction.
Referring to fig. 14, the second outdoor unit 200 is divided into a first area i disposed on the front right side, a second area ii disposed on the rear right side, a third area iii disposed on the front left side, and a fourth area iv disposed on the rear left side, based on the vertical line VC and the horizontal line HC.
Referring to fig. 14, the outdoor heat exchanger 240 is not disposed in the first region i. A second protective panel 223 is disposed in front of the first region i. Therefore, when the second protective panel 223 is separated, the structure disposed inside the second case 210 can be repaired or inspected.
Accordingly, the configuration disposed inside the second outdoor unit 200 may be disposed in the first area i or the second area ii. Referring to fig. 14, a reservoir 246 and a plate heat exchanger 248 are disposed in the second region ii. Referring to fig. 14, the cooling water tank 254 is disposed in the first area i.
These may be disposed in the third region iii or the fourth region iv to effectively utilize the inner region of the second housing 210. However, the configuration disposed in the third region iii or the fourth region iv is disposed closer to the vertical line VC than the first side heat exchanger 240b, so that a user or the like can easily repair or inspect the corresponding configuration.
That is, referring to fig. 14, a distance D1 separating the cooling water pump 238 disposed in the third region iii from the vertical line VC is smaller than a distance D2 separating the cooling water pump 238 from the first side heat exchanger 240 b. The distance D3 between the cooling water pump 238 disposed in the third region iii and the virtual reference line V1 extending in the front-rear direction from the end of the front heat exchanger 240a disposed in the front is smaller than the distance D2 between the cooling water pump 238 and the first side heat exchanger 240 b.
Referring to fig. 14, a cooling water pump 238 is disposed between a radiator 250 and a plate heat exchanger 248. Here, the space between the radiator 250 and the plate heat exchanger 248 may be defined between the inflow and discharge ends of the radiator 250 and the plate heat exchanger 248. Referring to fig. 14, inflow and discharge ends of the radiator 250 may be formed at an end of the front radiator 250 a.
Since the cooling water pump 238 is disposed adjacent to the radiator 250 and the plate heat exchanger 248, the flow rate of the cooling water flowing to the radiator 250 and the plate heat exchanger 248 is advantageously ensured, and the heat exchange speed can be increased.
The switching valve 242 and the oil separator 244 disposed in the fourth region iv are disposed closer to the vertical line VC than the first side heat exchanger 240 b.
< refrigerant tube and Cooling Water tube >
Referring to fig. 1, the refrigerant pipe 300 may supply the refrigerant discharged from the compressor 150 to the outdoor heat exchanger 240 or the indoor heat exchanger (not shown), and recirculate the heat-exchanged refrigerant to the compressor 150. The refrigerant pipe 300 may include: a first inner refrigerant pipe 330 disposed inside the first outdoor unit 100; a second inner refrigerant pipe 340 disposed inside the second outdoor unit 200; and a third inner refrigerant pipe (not shown) disposed inside the indoor unit (not shown). In addition, the refrigerant pipe 300 may include: a first outer refrigerant pipe 310 that is exposed to the outside of the first and second outdoor units 100 and 200 and connects the first and second outdoor units 100 and 200; and a second external refrigerant pipe 320 which is disposed outside the second outdoor unit 200 and the indoor unit and connects the second outdoor unit 200 and the indoor unit.
The cooling water pipe 400 may circulate the cooling water discharged from the cooling water pump 238 through the exhaust gas heat exchanger 166, the engine 140, and the radiator 250, or through the plate heat exchanger 248, and then to the cooling water pump 238 again.
Referring to fig. 1, the cooling water pipe 400 includes: a first inner cooling water pipe 420 disposed inside the first outdoor unit 100; a second inner cooling water pipe 430 disposed inside the second outdoor unit 200; and an external cooling water pipe 410 disposed outside the first outdoor unit 100 and the second outdoor unit 200 and connecting the first outdoor unit 100 and the second outdoor unit 200.
Referring to fig. 2 to 3, the first outer refrigerant pipe 310 and the outer cooling water pipe 410 are used to connect the first outdoor unit 100 and the second outdoor unit 200. Referring to fig. 17, the first outer refrigerant pipe 310 and the outer cooling water pipe 410 include at least one bent portion 312, 412 to prevent vibration generated in the first outdoor unit 100 from being transmitted to the second outdoor unit 200. Referring to fig. 17, the first outer refrigerant pipe 310 and the outer cooling water pipe 410 include four bent portions 312, 412, respectively.
The length of the cooling water pipe 400 may be set in consideration of the performance of the cooling water pump 238. The performance of the cooling water pump 238 needs to be able to form a flow of cooling water in the entire cooling water pipe 400 including the radiator 250. Accordingly, the length of the cooling water pipe 400 may be defined by the performance range of the cooling water pump 238, and thus, it is preferable to form the length of the outer cooling water pipe 410 to be minimized. In contrast, since the compressor 150 is driven by the engine 140 and is connected to a plurality of indoor unit units, the length of the refrigerant pipe 300 may not be limited as compared to the length of the cooling water pipe 400.
Therefore, referring to fig. 17, the length of the first outer refrigerant tube 310 exposed to the outside (l1+2h1+2w1, "length of the first outer refrigerant tube") is formed to be greater than the length of the outer cooling water tube 410 exposed to the outside (l2+2h2+2w2, "length of the outer cooling water tube").
The first outer refrigerant pipe 310 connects the first outdoor unit 100 and the second outdoor unit 200 disposed adjacent to each other, and the second outer refrigerant pipe 320 connects the second outdoor unit 200 and the indoor unit (not shown) disposed in different spaces from each other. Accordingly, the length (l1+2h1+2w1) of the first outer refrigerant tube 310 may be formed to be smaller than the length of the second outer refrigerant tube 320 exposed to the outside (not shown, "length of the second outer refrigerant tube").
While the preferred embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications without departing from the technical spirit of the present invention as claimed in the claims, and such modifications should be individually understood without departing from the technical spirit or the scope of the present invention.

Claims (13)

1. An air conditioner, comprising:
a first outdoor unit including an engine driven by combustion of fuel and a compressor operated by driving of the engine;
a second outdoor unit including an outdoor heat exchanger configured to exchange heat between the refrigerant discharged from the compressor and outdoor air, a cooling water pump configured to supply cooling water to the engine, and a radiator configured to exchange heat between the cooling water and the outdoor air, the second outdoor unit being disposed apart from the first outdoor unit;
a refrigerant pipe configured to be exposed to the outside of the first and second outdoor units and connected to the compressor; and
a cooling water pipe configured to be exposed to the outside of the first outdoor unit and the second outdoor unit and to connect the engine and the cooling water pump,
the second outdoor unit includes:
a plate heat exchanger for exchanging heat between the cooling water and the refrigerant;
a first valve that flows cooling water discharged from the engine to the plate-shaped heat exchanger or the radiator; and
and a second valve that flows cooling water discharged from the engine to the first valve or the cooling water pump.
2. The air conditioner according to claim 1, wherein,
the cooling water pump is disposed between the plate heat exchanger and the radiator.
3. The air conditioner according to claim 1, wherein,
the second outdoor unit includes a second casing forming an external appearance of the second outdoor unit, a suction port formed at an outer peripheral surface of the second casing, a discharge port formed at an upper side of the second casing,
the second housing includes:
a front panel disposed in front of the second housing;
a rear panel disposed behind the front panel in a spaced relation to the front panel; and
a pair of side panels that connect both ends of the front panel and the rear panel, respectively;
the front panel includes:
a first half panel, wherein a second control box is arranged on the inner side of the first half panel; and
and a second half panel disposed on one side of the first half panel, wherein the outdoor heat exchanger is disposed inside the second half panel.
4. The air conditioner according to claim 3, wherein,
the outdoor heat exchanger includes:
a front heat exchanger disposed inside the front panel;
a first side heat exchanger bent from the front heat exchanger and extending toward the rear;
A rear heat exchanger disposed inside the rear panel and extending from the first side heat exchanger; and
a second side heat exchanger bent from the rear heat exchanger and extending toward the front;
the front heat exchanger is disposed behind the second half panel.
5. The air conditioner according to claim 4, wherein,
the cooling water pump is disposed behind the second half-panel and closer to a virtual reference line extending in the front-rear direction from an end of the front heat exchanger than the first side heat exchanger.
6. The air conditioner according to claim 4, wherein,
the cooling water pump is disposed further forward than a virtual horizontal line that extends in the left-right direction from the center in the front-rear direction and partitions the second outdoor unit in the front-rear direction.
7. The air conditioner according to claim 1, wherein,
the first outdoor unit includes a first control box having a first controller for controlling an operation of the engine,
the second outdoor unit includes:
a blower fan for forming air flow to the outdoor heat exchanger; and
And a second control box in which a second controller for controlling the operation of the blower fan or the cooling water pump is built.
8. The air conditioner according to claim 7, wherein,
the second outdoor unit includes a switching valve that flows the refrigerant discharged from the compressor to the outdoor heat exchanger or an indoor heat exchanger that exchanges heat with air of an indoor space,
the second controller controls the switching valve to regulate a flow of the refrigerant discharged from the compressor.
9. The air conditioner according to claim 7, wherein,
the second outdoor unit includes:
a second casing forming an external appearance of the second outdoor unit, a suction port being formed on an outer peripheral surface of the second casing, and a discharge port being formed on an upper side of the second casing; and
an orifice which is arranged at the upper end of the second housing and forms a discharge flow path for air flowing through the blower fan;
the blower fan is disposed inside the orifice and causes air existing in the second casing to flow from the suction port to the discharge port,
the second control box is configured at the lower side of the orifice.
10. The air conditioner according to claim 9, wherein,
the second casing includes a second panel disposed in a region where the outdoor heat exchanger is not disposed, a second connector for connecting the plurality of refrigerant pipes and the plurality of cooling water pipes to the second connector is disposed on the second panel,
the second control box is arranged on the inner side of the second protective panel.
11. The air conditioner according to claim 10, wherein,
an opening is formed in the second panel, the opening communicates with the inside of the second control box disposed inside the second panel,
a second cover for opening and closing the opening is disposed on the second protective panel.
12. The air conditioner according to claim 7, wherein,
the first outdoor unit includes a first casing forming an external appearance of the first outdoor unit, and a space for disposing the engine and the compressor is formed inside the first casing,
the first housing includes:
A first base covering the lower side of the first housing;
a first peripheral panel disposed on an upper side of the first base and covering a peripheral surface of the first housing; and
a first upper panel disposed on an upper side of the first peripheral panel and having an exhaust port formed therein;
the engine is fixed to the first base, and the first control box is configured to be closer to the first upper panel than the engine.
13. The air conditioner according to claim 12, wherein,
the first peripheral panel includes a first maintenance panel, a first connector is disposed on the first maintenance panel, a plurality of refrigerant pipes and a plurality of cooling pipes for connecting the first outdoor unit and the second outdoor unit are connected to the first connector, the first control box is disposed on the inner side of the first maintenance panel,
an opening is formed in the first maintenance panel, the opening communicates with the inner side of the first control box disposed on the inner side of the first maintenance panel,
a first cover for opening and closing the opening is disposed on the first maintenance panel.
CN202111037584.6A 2020-09-07 2021-09-06 air conditioner Active CN114152003B (en)

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KR1020200113761A KR102405709B1 (en) 2020-09-07 2020-09-07 Air Conditioner
KR10-2020-0113761 2020-09-07

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CN114152003B true CN114152003B (en) 2023-09-05

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CN114152003A (en) 2022-03-08
EP3964771A1 (en) 2022-03-09
KR20220032227A (en) 2022-03-15
KR102405709B1 (en) 2022-06-03
JP7315629B2 (en) 2023-07-26
JP2022044576A (en) 2022-03-17

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