Stand-alone air conditioner

Abstract

The invention provides a stand-alone air conditioner which comprises a case, a controller, a refrigerating system and a heat exchange system, the controller, the refrigerating system and the heat exchange system are arranged in the case, and the controller is electrically connected with the refrigerating system and the heat exchange system. The case comprises an indoor part and an outdoor part; a heat exchange air inlet and a heat exchange air outlet are formed in the rear portion and the front portion of the indoor portion of the machine box respectively. The heat exchange system comprises a heat exchanger which is arranged in the machine box and located in front of the heat exchanger air inlet. A heat exchange liquid storage tank for storing anti-freezing heat exchange liquid is arranged in the case, a heat exchange liquid circulator for providing circulating power is arranged on the heat exchange liquid storage tank, and a heat exchange liquid circulating pipe is connected with the heat exchange liquid storage tank, the heat exchanger and the heat exchange liquid circulator to form a liquid circulating loop; an evaporator of the refrigerating system is arranged in the heat exchange liquid storage tank in a sealed mode. The device is simple in structure, compact and reasonable in arrangement of all devices and low in required power.

Description

Technical Field

[0001] The invention belongs to the field of indoor air conditioning, and in particular relates to a single-unit air conditioner. Background Art

[0002] With the development of social economy, people live in buildings and use air conditioners. Air conditioners are air conditioners, which are devices that use artificial means to adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in buildings or structures. The main forms of air conditioners are: cabinet air conditioners, wall-mounted air conditioners, water air conditioners, window air conditioners (half indoor and half outdoor), central air conditioners, one-to-two air conditioners (one outdoor unit controls two indoor units at the same time), etc. In order to achieve rapid cooling, the power of the air conditioner compressor is generally relatively large.

[0003] Today's sealed windows and exterior wall insulation technology have turned houses into highly airtight containers. Fresh air from the outdoors cannot enter the house, and the smoke, moisture, and odors in the house are all blocked in the house. Living in such a house will be very harmful to people's health. The fresh air ventilation and purification system can introduce the outdoor air into the room after purification, so that fresh air can be circulated indoors. Commonly used ones are house fresh air systems and wall-mounted fresh air fans. The fresh air system is large in size, has many equipment, and is inconvenient to install. A single air conditioner or a single fresh air air conditioner with a simple structure and low power requirement is needed. Summary of the invention

[0004] The invention provides a single-unit air conditioner.

[0005] The objective of the present invention is achieved in the following manner: a single-unit air conditioner comprises a chassis and a controller, a refrigeration system and a heat exchange system arranged in the chassis, wherein the controller is electrically connected to the refrigeration system and the heat exchange system; the chassis comprises an indoor part and an outdoor part; a heat exchange air inlet and a heat exchange air outlet are respectively arranged at the rear and the front of the indoor part of the chassis, and the heat exchange system comprises a heat exchanger arranged in the chassis in front of the air inlet of the heat exchanger; a heat exchange liquid storage tank for storing antifreeze heat exchange liquid is arranged in the chassis, a heat exchange liquid circulator for providing circulation power is arranged on the heat exchange liquid storage tank, and a heat exchange liquid circulation pipe connects the heat exchange liquid storage tank, the heat exchanger and the heat exchange liquid circulator to form a liquid circulation loop; the evaporator of the refrigeration system is sealed and arranged in the heat exchange liquid storage tank.

[0006] The indoor part and the outdoor part of the chassis are integrally arranged or detachably connected, and the chassis passes through a hole arranged on the wall of the house.

[0007] The indoor part and the outdoor part are threadedly connected, and an inner and outer isolation sealer is arranged at the connection between the indoor part and the outdoor part to allow the pipeline to pass through.

[0008] The refrigeration system includes an evaporator sealed in a heat exchange liquid storage tank, a compressor arranged in the indoor part, a condenser arranged in the outdoor part, and a condenser cooling fan; a capillary tube connects the condenser and the evaporator, and the other ends of the evaporator and the condenser are connected to the compressor; so the outdoor part of the chassis is provided with a condenser cooling air inlet and a condenser cooling air outlet.

[0009] The heat exchange system also includes an air-conditioning fan arranged in front of the heat exchanger, and an air deflector fixed to the heat exchange outlet is arranged in front of the air-conditioning fan; a condensation water collector is fixedly arranged below the heat exchanger, one end of the condensation water pipe is connected to the condensation water collector, and the other end is connected to the condensation water atomizer below, and the lower part of the condensation water atomizer is connected to a condensation water spray pipe with one end extending to the outdoor part.

[0010] An electric auxiliary heater is fixedly arranged on the outer surface of the heat exchange liquid storage tank or arranged inside the tank, and the electric auxiliary heater is electrically connected to the controller.

[0011] A fresh air system is also arranged in the chassis, and the fresh air system includes an air filter arranged below the heat exchange air inlet, a fresh air fan located below the air filter, and a fresh air inlet pipe installed on the fresh air fan; the other end of the fresh air inlet pipe extends to the outdoor part.

[0012] Compared with the prior art, the present invention reduces the power required by the compressor of the refrigeration system. The requirement can be met by using a refrigerator compressor or the like. The chassis of the present invention is an integral structure with a simple structure, compact and reasonable arrangement of each device, small overall volume and small material loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention.

[0014] Figure 2 It is a schematic structural diagram of another embodiment of the present invention.

[0015] Among them, 1 is the chassis; 2 is the controller; 3 is the heat exchange system; 4 is the electric auxiliary heater; 5 is the refrigeration system; 6 is the fresh air system; 1.1 is the heat exchange air inlet, 1.2 is the heat exchange air outlet; 1.3 is the inner and outer sealing spacer; 1.4 is the condenser heat dissipation air inlet, 1.5 is the condenser heat dissipation air outlet; 3.1 is the heat exchanger; 3.2 is the air conditioning fan; 3.3 is the air guide; 3.4 is the condensate collector; 3.5 is the condensate pipe; 3.6 is the condensate atomizer; 3.7 is the condensate spray pipe; 3.8 is the heat exchange liquid circulation pipe; 3.9 is the heat exchange liquid circulator; 3.10 is the heat exchange liquid storage tank; 3.11 is the heat exchange liquid; 4 is the electric auxiliary heater; 5.1 is the evaporator; 5.2 is the refrigerant; 5.3 is the compressor; 5.4 is the capillary tube; 5.5 is the condenser; 5.6 is the condenser cooling fan; 6.1 is the fresh air inlet pipe; 6.2 is the fresh air fan; 6.3 is the fresh air filter element. DETAILED DESCRIPTION

[0016] In the present invention, unless otherwise clearly specified and limited, the technical terms used in this application shall be the common meanings understood by the technicians of the present invention. The terms "connected", "connected", "fixed", "set", etc. should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be directly connected, or indirectly connected through an intermediate medium; may be mechanically connected or electrically connected. Unless otherwise clearly specified and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or indirectly in contact through an intermediate medium. Moreover, the first feature "above" or "above" or "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below" or "below" or "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Relational terms such as first, second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms used in the description, such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc., to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0017] The following will provide a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings and specific embodiments. Figure 1-2 As shown, a single air conditioner comprises a case 1 and a controller 2, a refrigeration system 5 and a heat exchange system 3 arranged in the case 1, wherein the controller 2 is electrically connected to the refrigeration system 5 and the heat exchange system 3. The case 1 comprises an indoor part and an outdoor part; a heat exchange air inlet 1.1 and a heat exchange air outlet 1.2 are respectively arranged at the rear and front of the indoor part of the case 1, and the heat exchange system 3 comprises a heat exchanger 3.1 arranged in the case 1 and located in front of the heat exchanger air inlet 1.1; a heat exchange liquid storage tank 3.10 for storing an antifreeze heat exchange liquid 3.11 is arranged in the case 1, and a heat exchange liquid circulator 3.9 for providing circulation power is arranged on the heat exchange liquid storage tank 3.10, and a heat exchange liquid circulation pipe 3.8 connects the heat exchange liquid storage tank 3.10, the heat exchanger 3.1 and the heat exchange liquid circulator 3.9 to form a liquid circulation loop. The evaporator 5.1 of the refrigeration system 5 is sealed and arranged in the heat exchange liquid storage tank 3.10. For the indoor part, the rear is the side close to the wall, and the front is the side relatively far from the wall. The heat exchange liquid circulator 3.9 here can be a pump body. The heat exchange liquid 3.11 is filled in the heat exchange liquid storage tank 3.10 connected to the heat exchange liquid circulation pipe 3.8 and the heat exchanger 3.1 and the heat exchange liquid circulator 3.9 to form a liquid circulation loop. The heat exchange liquid 3.11 can be an antifreeze liquid with a relatively large specific heat capacity that can withstand freezing above -30°C. The present invention uses antifreeze liquid as the heat exchange liquid 3.11. The antifreeze liquid can store a large amount of cold energy. After the refrigeration system 5 stops refrigeration, the antifreeze liquid can still continue to make the single air conditioner blow out cold air through the heat exchange system. The present invention reduces the power required by the compressor of the refrigeration system. The requirements can be met by using refrigerator compressors and the like for refrigeration.

[0018] The indoor part and the outdoor part of the chassis 1 are integrally arranged or detachably connected, and the chassis 1 passes through a hole arranged on the wall of the house. The wall of the house includes a structure that separates the indoor part of the house from the outdoor part, such as an ordinary wall, a curtain wall or glass. The chassis 1 of the present invention is an integral structure with a simple structure, compact and reasonable arrangement of each device, small overall volume, and small material loss. It can also be divided into a split setting like the prior art, and divided into an indoor unit and an outdoor unit for installation separately.

[0019] The indoor part and the outdoor part are threadedly connected, and an inner and outer isolation sealer 1.3 is arranged at the connection between the indoor part and the outdoor part to allow the pipe to pass through. The inner and outer isolation sealer 1.3 can be foam glue, and the pipe or other components extending from the indoor part to the outdoor part need to pass through the inner and outer isolation sealer.

[0020] The refrigeration system 5 includes an evaporator 5.1 sealed in a heat exchange liquid storage tank 3.10, a compressor 5.3 arranged in the indoor part, a condenser 5.5 arranged in the outdoor part, and a condenser cooling fan 5.6; a capillary tube 5.4 connects the condenser 5.5 and the evaporator 5.1, and the other ends of the evaporator 5.1 and the condenser 5.5 are connected to the compressor 5.3. Therefore, the outdoor part of the chassis 1 is provided with a condenser cooling air inlet 1.4 and a condenser cooling air outlet 1.5. Among them, the evaporator 5.1 is sealed and fixedly installed in the heat exchange liquid storage tank 3.10, and a seal is set at the inlet and outlet, and an existing sealing method can be used. The compressor 5.3 can be fixedly installed at the bottom of the chassis 1, and the refrigerant 5.2 is filled in the refrigeration cycle composed of the evaporator 5.1, the condenser 5.5, the capillary tube 5.4 and the compressor 5.3. The condenser 5.5 and the condenser cooling fan 5.6 are adapted to be fixedly installed in the outdoor part of the chassis 1 to facilitate heat dissipation. The condenser cooling fan 5.6 is arranged on the outside of the condenser 5.5.

[0021] The heat exchange system 3 also includes an air conditioning fan 3.2 arranged in front of the heat exchanger 3.1, and an air deflector 3.3 fixed to the heat exchange outlet 1.2 is arranged in front of the air conditioning fan 3.2; a condensate collector 3.4 is fixedly arranged below the heat exchanger 3.1, one end of a condensate pipe 3.5 is connected to the condensate collector 3.4 and the other end is connected to the condensate atomizer 3.7 below, and the lower part of the condensate atomizer 3.7 is connected to a condensate spray pipe 3.7 with one end extending to the outdoor part.

[0022] The heat exchange liquid storage tank 3.10 is fixedly provided with an electric auxiliary heater 4 on its outer surface or internally provided, and the electric auxiliary heater 4 is electrically connected to the controller 2. The liquid inside the heat exchange liquid storage tank 3.10 can also be heated by other electric heating mechanisms.

[0023] A fresh air system 6 is also provided in the chassis, and the fresh air system 6 includes an air filter provided below the heat exchange air inlet 1.1, a fresh air fan 6.2 provided below the air filter, and a fresh air inlet pipe 6.1 installed on the fresh air fan 6.2; the other end of the fresh air inlet pipe 6.1 extends to the outdoor part. A fresh air filter element 6.3 may be provided in the air filter to isolate indoor and outdoor air in the fresh air system. The fresh air fan 6.2 is electrically connected to the controller 2.

[0024] The controller 2 is adapted to be fixedly installed in the chassis. The controller 2 is electrically connected to the air conditioning fan 3.2, the air guide 3.3, the condensed water atomizer 3.6, the heat exchange liquid circulator 3.9, the electric auxiliary heater 4, the compressor 5.3, the condenser cooling fan 5.6, the fresh air fan 6.2 and other electrical appliances. The controller 2 controls the heat exchange system 3 and the electric auxiliary heater 4, the refrigeration system 5 and the fresh air system 6 to perform corresponding operations according to the indoor air environment, and adjusts the indoor air heating, cooling and fresh air exchange to achieve the air temperature freshness set by the controller 2.

[0025] The power supply of the present invention can be mains electricity or photovoltaic panels and batteries. When working, the power is turned on and the controller is turned on to select multiple functions such as cooling and dehumidification, heating, and fresh air. The present invention has low power, low noise, simple structure, compact and reasonable arrangement of each device, small overall volume, and low material loss. It has multiple functions such as fan, cooling, heating, fresh air, dehumidification, etc.

[0026] When working, turn on the power and turn on the controller 2 to select various functional modes such as cooling, heating, and fresh air.

[0027] The heating mode of the controller 2 can control the electric auxiliary heater 4, the air conditioning fan 3.2, the air guide 3.3, the heat exchange liquid circulator 3.9 and other components to perform heating work. When heating, the electric auxiliary heater 4 is first started to store heat under the control of the controller 2. The electric auxiliary heater 4 heats the heat exchange liquid 3.11. When the temperature of the heat exchange liquid 3.11 rises to the set temperature, a certain amount of heat energy is stored. Then, under the control of the controller 2, the air conditioning fan 3.2, the air guide 3.3, and the heat exchange liquid circulator 3.9 can start working. The heat exchange liquid 3.2 is driven by the heat exchange liquid circulator 3.9 to circulate through the heat exchange liquid circulation pipe 3.8, the heat exchanger 3.1 and the heat exchange liquid storage tank 3.9 to transfer heat energy to the heat exchanger 3.1. The air conditioning fan 3.2 draws indoor air from the heat exchange air inlet 1.1, releases heat through the heat exchanger 3.1, and then passes through the air guide 3.3 to guide the hot air from the heat exchange air outlet 1.2 to the room to start continuous air conditioning and heating. When the indoor air reaches the preset temperature, the electric auxiliary heater 4 continues to store heat under the control of the controller 2, and the electric auxiliary heater 4 heats the heat exchange liquid 3.11. When the temperature of the heat exchange liquid 3.11 rises to the set temperature, after storing a certain amount of heat energy, the electric auxiliary heater 4 stops heating the heat exchange liquid 3.11. When the temperature of the indoor air drops and the temperature of the heat exchange liquid 3.11 drops to the set temperature, the electric auxiliary heater 4 is reopened under the control of the controller 2 to store heat, and the electric auxiliary heater 4 heats the heat exchange liquid 3.11. When the temperature of the heat exchange liquid 3.11 rises to the set temperature, after storing a certain amount of heat energy, the electric auxiliary heater 4 stops heating the heat exchange liquid 3.11. The above process is repeated under the control of the controller 2 to complete the heating adjustment and control of the air in the room.

[0028] The controller 2 sets the indoor air cooling temperature. The controller 2 coordinates and controls the air conditioning fan 3.2, the air guide 3.3, the heat exchange liquid circulator 3.9, the compressor 5.3, the condenser cooling fan 5.6 and other electrical appliances to work together. When the air conditioner is cooling, the refrigeration system 5 composed of the evaporator 5.1, the refrigerant 5.2, the compressor 5.3, the capillary tube 5.4, the condenser 5.5, and the condenser cooling fan 5.6 is first started under the control of the controller 2 to store cold energy. The compressor 5.3 starts to compress the refrigerant 5.2, and the temperature of the condenser 5.5 rises. The condenser cooling fan 5.6 starts under the control of the controller 2 to suck in the outdoor normal temperature air from the condenser cooling air inlet 1.3 to dissipate the heat of the condenser 5.5. The outdoor air absorbs the heat of the condenser 5.5 and is discharged from the condenser cooling air outlet 1.4. The temperature of the evaporator 5.1 drops to freeze the heat exchange liquid 3.11 in the heat exchange liquid storage tank 3.10. The temperature of the heat exchange liquid 3.11 drops to the air conditioning start setting temperature (e.g. 5°C) set by the controller 2. The air conditioning fan 3.2, the air guide 3.3, and the heat exchange liquid circulator 3.9 can start the air conditioning refrigeration work under the control of the controller 2. The low-temperature heat exchange liquid 3.11 in the heat exchange liquid storage tank 3.9 enters the heat exchanger 3.1 through the heat exchange liquid circulation pipe 3.8 under the push of the heat exchange liquid circulator 3.9 and circulates back to the heat exchange liquid storage tank 3.10. The air conditioning fan 3.2 sucks the indoor air from the heat exchange air inlet 1.1. After the heat exchanger 3.1 absorbs heat and cools down, the cold air is guided by the air guide 3.3 and blown into the room from the heat exchange air outlet 1.2 to start the continuous air conditioning refrigeration work. During the air conditioning process, the condensed water generated by the heat exchanger 3.1 is collected in the condensed water collector 3.4 and then flows from the condensed water pipe 3.5 to the condensed water atomizer 3.6. After the condensed water is atomized, it is sprayed on the condenser 5.5 through the condensed water spray pipe 3.7 to clean and cool the condenser 5.5 to achieve the purpose of energy saving. When the indoor air temperature drops to the minimum indoor air temperature set by the controller 2, the heat exchange liquid circulator 3.9 stops working under the control of the controller, and the refrigeration system 5 continues to operate to freeze the heat exchange liquid 3.11 to store cold energy. After the heat exchange liquid 3.11 drops to the controller set temperature (for example, -20°C) and stores a certain amount of cold energy, the refrigeration system 5 stops working under the control of the controller 2. When the indoor air temperature rises to the maximum indoor air temperature set by the controller 2, the heat exchange liquid circulator 3.9 and the refrigeration system 5 restart working under the control of the controller 2. The above process is repeated under the control of the controller 2 to complete the air refrigeration control in the room.

[0029] The controller 2 in fresh air mode can control the fresh air fan 6.2 to perform fresh air exchange. When working, the controller 2 controls the fresh air fan 6.2 to suck in the fresh air outside through the fresh air inlet pipe 6.1 and blow it into the room through the air filter 3.1. When the indoor air reaches the set standard, it stops working.

[0030] The fresh air mode can be operated simultaneously with the cooling mode or the heating mode.

[0031] The technical features of the above-mentioned embodiments can be combined arbitrarily, and as long as there is no contradiction in the combination of these technical features, they should be considered as the scope of this specification. Without departing from the overall concept of the present invention, the technical solution of the present invention and the equivalent replacement or change, as well as the changes and improvements made, should also be regarded as the protection scope of the present invention.

Claims

1. A stand-alone air conditioner, comprising a chassis and a controller, a refrigeration system, and a heat exchange system arranged in the chassis, wherein the controller is electrically connected to the refrigeration system and the heat exchange system; characterized in that: The chassis includes an indoor part and an outdoor part; a heat exchange air inlet and a heat exchange air outlet are respectively arranged at the rear and the front of the indoor part of the chassis, and the heat exchange system includes a heat exchanger arranged in the chassis in front of the heat exchanger air inlet; a heat exchange liquid storage tank for storing antifreeze heat exchange liquid is arranged in the chassis, a heat exchange liquid circulator for providing circulation power is arranged on the heat exchange liquid storage tank, and a heat exchange liquid circulation pipe connects the heat exchange liquid storage tank, the heat exchanger and the heat exchange liquid circulator to form a liquid circulation loop; the evaporator of the refrigeration system is sealed and arranged in the heat exchange liquid storage tank.

2. A stand-alone air conditioner according to claim 1, characterized in that: The indoor part and the outdoor part of the chassis are integrally arranged or detachably connected, and the chassis passes through a hole arranged on the wall of the house.

3. A stand-alone air conditioner according to claim 2, characterized in that: The indoor part and the outdoor part are threadedly connected, and an inner and outer isolation sealer is arranged at the connection between the indoor part and the outdoor part to allow the pipeline to pass through.

4. The single-unit air conditioner according to any one of claims 2-3, characterized in that: The refrigeration system includes an evaporator sealed in a heat exchange liquid storage tank, a compressor arranged in the indoor part or the outdoor part, a condenser arranged in the outdoor part, and a condenser cooling fan; a capillary tube connects the condenser and the evaporator, and the other ends of the evaporator and the condenser are connected to the compressor; the outdoor part of the chassis is provided with a condenser cooling air inlet and a condenser cooling air outlet.

5. A stand-alone air conditioner according to claim 4, characterized in that: The heat exchange system also includes an air-conditioning fan arranged in front of the heat exchanger, and an air deflector fixed to the heat exchange outlet is arranged in front of the air-conditioning fan; a condensation water collector is fixedly arranged below the heat exchanger, one end of the condensation water pipe is connected to the condensation water collector, and the other end is connected to the condensation water atomizer below, and the lower part of the condensation water atomizer is connected to a condensation water spray pipe with one end extending to the outdoor part.

6. A stand-alone air conditioner according to claim 1, characterized in that: An electric auxiliary heater is fixedly arranged on the outer surface of the heat exchange liquid storage tank or arranged inside the tank, and the electric auxiliary heater is electrically connected to the controller.

7. A stand-alone air conditioner according to claim 1, characterized in that: A fresh air system is also provided in the chassis, and the fresh air system includes an air filter provided below the heat exchange air inlet, a fresh air fan provided below the air filter, and a fresh air inlet pipe installed on the fresh air fan; the other end of the fresh air inlet pipe extends to the outdoor part; Fresh air system electrical connection controller.

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