Heat pump air conditioner with fresh air system

Abstract

The utility model discloses a kind of heat pump air conditioners with fresh air system, including indoor unit, outdoor unit, first shell, second shell, the side wall of the indoor unit is arranged the first shell, first fan, fresh air heat exchanger are arranged in the first shell;The air conditioner is set by setting first shell, second shell, first shell is set in indoor unit side wall, second shell is set in outdoor unit top, then first fan, fresh air heat exchanger are respectively arranged in first shell, second fan is arranged in second shell, first fan suction indoor exhaust gas, and is transported to outdoor, second fan suction outdoor fresh air, and is transported to indoor, fresh air and exhaust gas are heat exchanged in fresh air heat exchanger, complete fresh air winter preheating summer precooling, realize the two fresh air components of indoor unit, outdoor unit are connected together, realize indoor and outdoor fresh air's exchange, and the air volume is larger, and guarantee that air outlet is more stable, the fresh air system arranged in the air conditioner, can reduce overall energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of heat pump air conditioning technology, and in particular to a heat pump air conditioner with a fresh air system. Background Technology

[0002] As modern families become increasingly reliant on air conditioning, ensuring good indoor air circulation, freshness, and cleanliness has become an important issue. Air conditioning can keep our living space in the most comfortable temperature range during hot summers or cold winters, but many people may not realize that air conditioning can only regulate temperature but cannot effectively improve air quality. Rooms that are used with air conditioning for a long time often feel stuffy and dry, and may even accumulate dust and harmful substances.

[0003] While air conditioning provides comfort in terms of temperature, it can lead to poor indoor air quality due to poor air circulation, affecting health. A conventional fresh air system, on the other hand, continuously introduces fresh outdoor air into the room while simultaneously expelling stale indoor air. This not only effectively ensures indoor air circulation but also reduces the concentration of harmful gases such as carbon dioxide, formaldehyde, and PM2.5, thus keeping the air fresh and reducing the accumulation of allergens and harmful substances. Especially in autumn and winter, closed homes often lack fresh air circulation, leading to the proliferation of bacteria and viruses.

[0004] A heat pump air conditioner is a device that uses electrical energy to extract low-grade heat energy from the air, water, or soil in nature and elevate it to a usable high-grade heat energy. Heat pump air conditioners do not require fuel combustion, produce no smoke, no waste, and cause no pollution; they are a clean and environmentally friendly device utilizing renewable resources. A fresh air system, on the other hand, uses fan power, ductwork, and exhaust technology to connect indoor and outdoor air, creating circulation and airflow within the room, thereby improving indoor air quality.

[0005] In traditional technology, air conditioners have cooling and heating functions. However, when using an air conditioner for cooling or heating, in order to ensure the heating and cooling effect, doors and windows are usually closed to reduce air circulation. But keeping doors and windows closed can easily lead to discomfort such as air conditioning sickness. Air conditioners also consume a lot of electricity for cooling or heating, resulting in high energy consumption. Utility Model Content

[0006] In view of the shortcomings of existing technologies, such as the high temperature of the air delivered by the outdoor unit in summer and the connection between the outdoor and indoor units, which leads to high overall energy consumption when the indoor unit is cooling, the purpose of this utility model is to provide a heat pump air conditioner with a fresh air system that has a larger and more stable air volume and lower energy consumption.

[0007] To achieve the above objectives, the present invention provides the following solution: a heat pump air conditioner with a fresh air system, comprising an indoor unit, an outdoor unit, a first housing, a second housing, an air inlet pipe, an air outlet pipe, and a fresh air heat exchanger. The first housing is disposed on the side wall of the indoor unit, and a first fan, a fresh air mechanism, and a fresh air heat exchanger are disposed inside the first housing. The second fan is connected to the fresh air mechanism, and the fresh air mechanism is connected to the indoor environment. The second housing is disposed on the top of the outdoor unit. An air inlet pipe and an air outlet pipe are respectively connected between the first housing and the second housing. A first fan is disposed on the air inlet pipe, and a second fan is disposed on the air outlet pipe. Both the air inlet pipe and the air outlet pipe are used to connect the outdoor environment and the indoor environment. The fresh air heat exchanger is provided with a first heat exchange section and a second heat exchange section. The air inlet pipe is connected to the first heat exchange section, and the air outlet pipe is connected to the second heat exchange section.

[0008] The beneficial effects of this utility model are as follows: 1. Larger and more stable fresh air output: This air conditioner consists of a first casing and a second casing. The first casing is located on the side wall of the indoor unit, and the second casing is located on the top of the outdoor unit. A first fan and a fresh air heat exchanger are installed in the first casing, and a second fan is installed in the second casing. The first fan draws in exhaust gas from the indoor unit and delivers it to the outside, while the second fan draws in fresh air from the outside and delivers it to the indoor unit. The fresh air and exhaust gas exchange heat in the fresh air heat exchanger, completing the preheating of fresh air in winter and precooling in summer. This connects the two fresh air components of the indoor and outdoor units, realizing the exchange of fresh air between indoor and outdoor units, resulting in a larger air output and ensuring a more stable air output.

[0009] 2. The fresh air system installed in this air conditioner can deliver fresh air while recovering the residual heat (residual cooling) of the exhaust gas, so as to make the temperature of the fresh air close to the indoor temperature, which reduces the overall energy consumption and ensures that the fresh air is fresh and comfortable.

[0010] 3. This air conditioner ensures indoor air quality. Throughout the year, it can heat or cool the room without opening windows, and also deliver fresh air to avoid discomfort such as lack of oxygen.

[0011] 4. This air conditioner places greater emphasis on the combination of aesthetics and practicality. The first fan and fresh air mechanism are located inside the indoor unit, while the second fan is located inside the outdoor unit, resulting in a small overall space occupation.

[0012] Furthermore, a first chamber is formed inside the first housing, and the first fan and fresh air mechanism are disposed inside the first chamber.

[0013] Furthermore, the fresh air mechanism includes a magnetic levitation mechanism, which includes a base and a top cover. The top of the base has a first air exchange port that connects to the indoor environment. The top cover is used to block the first air exchange port. An electromagnetic coil is installed inside the base, and a magnet is installed inside the top cover. The electromagnetic coil and the magnet work together to push the top cover up and down to open or close the first air exchange port.

[0014] Furthermore, a lifting rod is provided at the bottom of the top cover, and the lifting rod slides up and down on the base. With the above structure, this invention guides the top cover to move up and down.

[0015] Furthermore, the base has a second air exchange port, the base is mounted on the first fan, and the second air exchange port is connected to the air outlet pipe.

[0016] Furthermore, the first fan has a third air exchange port, which is connected to the air inlet pipe.

[0017] Furthermore, a fourth air exchange port is provided on the top of the second housing, and the fourth air exchange port is connected to the air inlet pipe and the air outlet pipe respectively.

[0018] Furthermore, the fresh air heat exchanger is one of a shell-and-tube heat exchanger or a coaxial heat exchanger. By adopting the above structure, this invention achieves the recovery of residual cold or heat from the old indoor air, pre-cooling or preheating the incoming fresh air, thereby reducing overall energy consumption. Attached Figure Description

[0019] Figure 1 The indoor unit of this utility model is three-dimensional. Figure 1 .

[0020] Figure 2 The indoor unit of this utility model is three-dimensional. Figure 2 .

[0021] Figure 3 This is a front view of the indoor unit of this utility model.

[0022] Figure 4 This utility model provides a three-dimensional outdoor unit. Figure 1 .

[0023] Figure 5 This utility model provides a three-dimensional outdoor unit. Figure 2 .

[0024] Figure 6 This is a diagram of the overall connection structure of this utility model.

[0025] Figure 7 This is a diagram of the internal structure of the fresh air heat exchanger of this utility model.

[0026] In this configuration, 1 is the indoor unit, 2 is the outdoor unit, 3 is the first casing, 31 is the first chamber, 32 is the first fan, 321 is the third air exchange outlet, 331 is the base, 3311 is the first air exchange outlet, 332 is the top cover, 3321 is the lifting rod, 34 is the fresh air heat exchanger, 341 is the shell side, 342 is the tube side, 343 is the first heat exchange section, 4 is the second casing, 41 is the second fan, 411 is the fourth air exchange outlet, 42 is the air inlet pipe, 43 is the air outlet pipe, 431 is the second heat exchange section, 51 is the indoor heat exchanger, 52 is the compressor, 53 is the outdoor heat exchanger, 54 is the expansion valve, and 55 is the four-way valve. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] See appendix Figure 1 To be continued Figure 7 As shown, a heat pump air conditioner with a fresh air system includes an indoor unit 1, an outdoor unit 2, a first housing 3, a second housing 4, and a fresh air heat exchanger 34. The first housing 3 is disposed on the side wall of the indoor unit 1. The first housing 3 is disposed inside the first housing 3, which contains a first fan 32, a fresh air mechanism, and a fresh air heat exchanger. The first fan 32 is connected to the fresh air mechanism, which is connected to the indoor environment. The second housing 4 is disposed on the top of the outdoor unit 2. An air inlet pipe 42 and an air outlet pipe 42 are respectively connected between the first housing 3 and the second housing 4. The first fan 32 is disposed on the air inlet pipe 42, and the second fan 41 is disposed on the air outlet pipe 43. Both the air inlet pipe 42 and the air outlet pipe 43 are used to connect the outdoor environment and the indoor environment.

[0030] In this embodiment, a first chamber 31 is formed inside the first housing 3, and a first fan 32 and a fresh air mechanism are disposed inside the first chamber 31.

[0031] In this embodiment, the fresh air mechanism includes a magnetic levitation mechanism, which includes a base 331 and a top cover 332. The top of the base 331 has a first air exchange port 3311, which connects to the indoor environment. The top cover 332 is used to block the first air exchange port 3311. An electromagnetic coil is provided inside the base 331, and a magnet is provided inside the top cover 332. The electromagnetic coil and the magnet cooperate to push the top cover 332 to move up and down to open or close the first air exchange port 3311. A lifting rod 3321 is provided at the bottom of the top cover 332. The lifting rod 3321 slides up and down on the base 331, and the first air exchange port 3311 connects to the indoor environment.

[0032] In this embodiment, the base 331 has a second air exchange port, the base 331 is mounted on the first fan 32, and the second air exchange port is connected to the air outlet duct 43.

[0033] In this embodiment, the first fan 32 has a third air exchange port 321, which is connected to the air inlet pipe 42.

[0034] In this embodiment, the second fan 41 has a fourth air exchange port 411 on its top, which is connected to the air inlet pipe 42 and the air outlet pipe 43 respectively.

[0035] In this embodiment, the fresh air heat exchanger 34 is provided with a first heat exchange section 343 and a second heat exchange section 344, the air inlet pipe 42 is connected to the first heat exchange section 343, and the air outlet pipe 43 is connected to the second heat exchange section 43. Specifically, the fresh air heat exchanger 34 is one of a shell-and-tube heat exchanger or a coaxial heat exchanger. In this embodiment, the outer shell of the fresh air heat exchanger 34 is the shell side 341, and the fresh air heat exchanger 34 includes two tube sides 342. One tube side 342 is the first heat exchange section 343, and the other tube side 342 is the second heat exchange section 344.

[0036] In this embodiment, a copper pipe can be inserted into the air outlet pipe 43 through the indoor heat exchanger 51 to cool / heat the fresh air.

[0037] In this embodiment, the first housing 3 with a magnetic levitation structure is installed on the side of the indoor unit 1 with the motor and power board. After being powered on, the opening and closing of the cover is smoothly controlled by the magnetic levitation structure. Specifically, the electromagnetic coil is activated, and the repulsion and attraction between the electromagnetic coil and the magnet are used to control the top cover 332 to open or close the first air exchange port 3311. Similarly, a second air exchange port is reserved behind the first fan 32 to connect the air inlet pipe 42. A second fan 41 is installed on the air outlet pipe 43, and the air outlet pipe 43 is connected to the second air exchange port, so that the second motor 41 is connected to the magnetic levitation mechanism. In this way, the two fresh air system components of the indoor unit 1 and the outdoor unit 2 are connected together.

[0038] When ventilation is required, the first fan 32 and the second fan 41 are started respectively. The first fan 32 draws the indoor exhaust gas into the air duct 42, and then the first fan 32 delivers the exhaust gas to the fourth air exchange port 411 and discharges it outdoors. Then the magnetic levitation mechanism and the second fan 41 are started. The magnetic levitation mechanism opens the first air exchange port 3311 and works with the second fan 41 to draw the outdoor fresh air through the fourth air exchange port 411 into the air outlet duct 43. Finally, the fresh air is delivered to the room through the air outlet duct 43 and the first air exchange port 3311, completing the delivery of the old air and realizing the exchange of indoor fresh air.

[0039] When indoor exhaust gas enters the air inlet duct 42, some of the heat or cold energy of the old air enters the fresh air heat exchanger 34 through the first heat exchange section 343. Then, in the fresh air heat exchanger 34, the cold or heat energy in the fresh air heat exchanger 34 exchanges heat with the fresh air in the second heat exchange section 344 of the air outlet duct 43, thereby pre-cooling or preheating the fresh air entering the room, reducing the temperature change caused by the fresh air entering the room, thereby reducing the power of the indoor unit's cooling or heating system and reducing overall energy consumption.

[0040] The integrated structure of the indoor unit 1, outdoor unit 2, and fresh air system in this embodiment combines the two fresh air system components, resulting in a larger and more stable air volume and higher static pressure.

[0041] The fresh air system in this embodiment is applied in the heat pump air conditioner. It can pre-cool or preheat the indoor and outdoor air during the exchange of air, effectively reducing the loss of indoor temperature caused by ventilation, and ensuring that ventilation is achieved without opening windows, without wasting the energy of the heat pump air conditioner.

[0042] In this embodiment, the outdoor unit 2 is equipped with an outdoor heat exchanger 53, a compressor 52, and a four-way valve 55. The indoor unit 2 is equipped with an indoor heat exchanger 51 and an expansion valve 54. The outdoor heat exchanger 53 is connected to the four-way valve 55. The four-way valve 55 is connected to the indoor heat exchanger 51 and the compressor 52 respectively. The indoor heat exchanger 51 is connected to the expansion valve 54. The expansion valve 54 is connected to the outdoor heat exchanger 51.

[0043] In cooling mode, the four-way valve 55 moves in the forward direction. The indoor heat exchanger 51 heats the low-temperature, low-pressure refrigerant to convert it into a high-temperature, low-pressure refrigerant, which is then sent to the compressor 52. The compressor 52 converts the high-temperature, low-pressure refrigerant into a high-temperature, high-pressure refrigerant, which is then sent to the outdoor heat exchanger 53. The high-temperature, high-pressure refrigerant in the outdoor heat exchanger 53 releases heat and is converted into a low-temperature, high-pressure refrigerant. The low-temperature, high-pressure refrigerant is then sent to the expansion valve 54 and converted into a low-temperature, low-pressure refrigerant. Finally, the low-temperature, low-pressure refrigerant is sent to the indoor heat exchanger 51, completing the cycle. This works in conjunction with the indoor unit 1 to deliver cool air into the room.

[0044] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any person skilled in the art can make more possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from the content of the technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A heat pump air conditioner with a fresh air system, comprising an indoor unit (1), an outdoor unit (2), a first housing (3), a second housing (4), an air inlet pipe (42), an air outlet pipe (43), and a fresh air heat exchanger (34), characterized in that: The first housing (3) is provided on the side wall of the indoor unit (1). The first housing (3) is provided with a first fan (32), a fresh air mechanism, and a fresh air heat exchanger (34). The second housing (4) is provided on the top of the outdoor unit (2). The first housing (3) and the second housing (4) are respectively connected to an air inlet pipe (42) and an air outlet pipe (43). The first fan (32) is provided on the air inlet pipe (42), and the second fan (41) is provided on the air outlet pipe (43). The air inlet pipe (42) and the air outlet pipe (43) are both used to connect the outdoor environment and the indoor environment. The second fan (41) is connected to the fresh air mechanism, and the fresh air mechanism is connected to the indoor environment. The fresh air heat exchanger (34) is provided with a first heat exchange section (343) and a second heat exchange section (344). The air inlet pipe (42) is connected to the first heat exchange section (343), and the air outlet pipe (43) is connected to the second heat exchange section (344).

2. A heat pump air conditioner with a fresh air system according to claim 1, characterized in that: The first housing (3) has a first chamber (31) formed inside, and the first fan (32) and fresh air mechanism are arranged inside the first chamber (31).

3. A heat pump air conditioner with a fresh air system according to claim 1, characterized in that: The fresh air mechanism includes a magnetic levitation mechanism, which includes a base (331) and a top cover (332). The base (331) has a first air exchange port (3311) at the top, which is connected to the indoor environment. The top cover (332) is used to block the first air exchange port (3311). An electromagnetic coil is provided inside the base (331), and a magnet is provided inside the top cover (332). The electromagnetic coil and the magnet work together to push the top cover (332) to move up and down to open or close the first air exchange port (3311).

4. A heat pump air conditioner with a fresh air system according to claim 3, characterized in that: The bottom of the top cover (332) is provided with a lifting rod (3321), which slides up and down on the base (331).

5. A heat pump air conditioner with a fresh air system according to claim 3, characterized in that: The base (331) has a second air exchange port, and the base (331) is mounted on the first fan (32). The second air exchange port is connected to the air outlet pipe (43).

6. A heat pump air conditioner with a fresh air system according to claim 1, characterized in that: The first fan (32) has a third air exchange port (321), which is connected to the air inlet pipe (42).

7. A heat pump air conditioner with a fresh air system according to claim 1, characterized in that: The second fan (41) has a fourth air exchange port (411) on its top, and the fourth air exchange port (411) is connected to the air inlet pipe (42) and the air outlet pipe (43) respectively.

8. A heat pump air conditioner with a fresh air system according to claim 1, characterized in that: The fresh air heat exchanger (34) is one of the shell-and-tube heat exchangers or the coaxial heat exchanger.

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