Heat pump air conditioner with fresh air system

Abstract

The heat pump air conditioner with the fresh air system comprises an indoor unit, an outdoor unit, a first shell and a second shell, the first shell is arranged on the side wall of the indoor unit, and a first draught fan and a fresh air heat exchanger are arranged in the first shell; according to the air conditioner, the first shell and the second shell are arranged, the first shell is arranged on the side wall of the indoor unit, the second shell is arranged on the top of the outdoor unit, then the first draught fan and the fresh air heat exchanger are arranged in the first shell, the second draught fan is arranged in the second shell, the first draught fan sucks indoor waste gas and conveys the waste gas to the outside, and the second draught fan sucks outdoor fresh air and conveys the fresh air to the outside. Fresh air and waste gas are conveyed indoors, heat exchange is conducted on the fresh air and the waste gas in the fresh air heat exchanger, the fresh air is preheated in winter and precooled in summer, two fresh air assemblies of the indoor unit and the outdoor unit are connected together, exchange and supply of indoor and outdoor fresh air are achieved, the air outlet amount is larger, it is guaranteed that air outlet is more stable, and the overall energy consumption can be reduced through a fresh air system arranged in the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump air conditioners, and in particular to a heat pump air conditioner with a fresh air system. Background Art

[0002] As modern families become increasingly dependent on air conditioning, how to ensure indoor air circulation, freshness and refreshing has become an important issue; air conditioning can keep our living space at the most comfortable temperature range in hot summer or cold winter, but there is one thing many people may not realize: air conditioning can only adjust the temperature but cannot effectively improve the air quality; rooms that use air conditioning for a long time often feel stuffy and dry, and even accumulate dust and harmful substances.

[0003] While air conditioning provides a comfortable temperature, it can also lead to poor indoor air quality due to poor air circulation, which can negatively impact health. Conventional ventilation systems, on the other hand, continuously draw fresh air from outside into the home while simultaneously exhausting stale air. This not only effectively ensures good indoor air circulation but also reduces the concentration of harmful gases such as carbon dioxide, formaldehyde, and PM2.5, thereby maintaining fresh air and reducing the accumulation of allergens and harmful substances. This is especially true in autumn and winter, when enclosed homes often lack fresh air circulation, which can foster the growth of bacteria and viruses.

[0004] A heat pump air conditioner is a device that uses electricity to extract low-grade heat from natural air, water, or soil and elevate it to usable high-grade heat. Heat pumps require no fuel, produce no smoke, and produce no waste, resulting in zero pollution. They are a clean, environmentally friendly device that utilizes renewable resources. Fresh air systems, on the other hand, utilize fan power, ducting, and exhaust technology to circulate indoor and outdoor air, creating a flow of air inside the home, thereby improving indoor air quality.

[0005] In traditional technology, air conditioners have cooling and heating functions. However, when using air conditioners for cooling and heating, in order to ensure the cooling and heating effects, doors and windows are usually closed to reduce air circulation. However, closing doors and windows tightly can easily lead to discomfort such as air-conditioning disease. The cooling or heating of air conditioners also consumes a lot of electricity, resulting in high energy consumption. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, such as the fact that the air temperature delivered by the outdoor unit is relatively high in summer and the outdoor unit is connected to the indoor unit, which leads to high overall energy consumption when the indoor unit is cooling, the purpose of the present invention is to provide a heat pump air conditioner with a fresh air system that has a larger and more stable air output and lower energy consumption.

[0007] To achieve the above-mentioned object, the present invention provides a solution as follows: a heat pump air conditioner with a fresh air system, comprising an indoor unit, an outdoor unit, a first shell, a second shell, an air inlet pipe, an air outlet pipe, and a fresh air heat exchanger, wherein the first shell is provided on the side wall of the indoor unit, a first fan, a fresh air mechanism, and a fresh air heat exchanger are provided in the first shell, the second fan is connected to the fresh air mechanism, and the fresh air mechanism is connected to the indoor environment, the second shell is provided on the top of the outdoor unit, an air inlet pipe and an air outlet pipe are connected between the first shell and the second shell, respectively, the air inlet pipe is provided with the first fan, the air outlet pipe is provided with the second fan, and the air inlet pipe and the air outlet pipe are both 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 the present invention are: 1. The fresh air output is larger and more stable. The air conditioner is provided with a first shell and a second shell. The first shell is provided on the side wall of the indoor unit, and the second shell is provided on the top of the outdoor unit. Then a first fan and a fresh air heat exchanger are provided in the first shell respectively, and a second fan is provided in the second shell. The first fan sucks the exhaust gas in the room and transmits it to the outside. The second fan sucks the fresh air outside and transmits it to the room. The fresh air and the exhaust gas exchange heat in the fresh air heat exchanger to complete the preheating of the fresh air in winter and precooling in summer. The two fresh air components of the indoor unit and the outdoor unit are connected together to realize the exchange of fresh air indoors and outdoors, with a larger air output and a more stable air output.

[0009] 2. The fresh air system installed in the air conditioner can supply fresh air while recovering the waste heat (waste cold) of the exhaust gas, so that the fresh air temperature is close to the indoor temperature, which not only reduces the overall energy consumption but also ensures that the fresh air is fresh and comfortable.

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

[0011] 4. This air conditioner pays more attention to the combination of beauty and practicality. The first fan and fresh air mechanism are set inside the indoor unit, and the second fan is set inside the outdoor unit, and the overall space occupied is small.

[0012] Furthermore, a first chamber is formed in the first shell, and the first fan and the fresh air mechanism are arranged in the first chamber.

[0013] Furthermore, the fresh air mechanism includes a magnetic levitation mechanism, which includes a base and a top cover. A first air exchange outlet is opened on the top of the base, and the first air exchange outlet is connected to the indoor environment. The top cover is used to block the first air exchange outlet. An electromagnetic coil is provided in the base, and a magnet is provided in the top cover. The electromagnetic coil and the magnet cooperate to push the top cover up and down to open or close the first air exchange outlet.

[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. After the present invention adopts the above structure, it can guide the top cover to move up and down.

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

[0016] Furthermore, the first fan is provided with a third air exchange port, and the third air exchange port is connected to the air inlet duct.

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

[0018] Furthermore, the fresh air heat exchanger is a shell and tube heat exchanger or a double-tube heat exchanger. After adopting the above structure, the present invention can realize the recovery of residual cooling or residual heat of the indoor old air, pre-cooling or pre-heating the fresh air entering the room, and reducing overall energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The indoor unit of the present invention is a three-dimensional Figure 1 .

[0020] Figure 2 The indoor unit of the present invention is a three-dimensional Figure 2 .

[0021] Figure 3 It is a front view of the indoor unit of the present invention.

[0022] Figure 4 The outdoor unit of the present invention is a three-dimensional Figure 1 .

[0023] Figure 5 The outdoor unit of the present invention is a three-dimensional Figure 2 .

[0024] Figure 6 It is the overall connection structure diagram of the present invention.

[0025] Figure 7 This is a diagram of the internal structure of the fresh air heat exchanger of the present invention.

[0026] Among them, 1 is the indoor unit, 2 is the outdoor unit, 3 is the first shell, 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 shell, 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 DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. 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 attached Figure 1 To the attached 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 shell 3, a second shell 4, and a fresh air heat exchanger 34. The first shell 3 is provided on the side wall of the indoor unit 1, and the first shell 3 is provided with 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, and the fresh air mechanism is connected to the indoor environment. The second shell 4 is provided on the top of the outdoor unit 2, and the first shell 3 and the second shell 4 are respectively connected to the air inlet pipe 42 and the air outlet pipe 42. 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.

[0030] In this embodiment, a first chamber 31 is formed in the first shell 3 , and a first fan 32 and a fresh air mechanism are disposed in 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. A first air exchange port 3311 is opened on the top of the base 331, and the first air exchange port 3311 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 in the base 331, and a magnet is provided in the top cover 332. The electromagnetic coil and the magnet cooperate to push the top cover 332 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, and the lifting rod 3321 slides up and down on the base 331, and the first air exchange port 3311 is connected to the indoor environment.

[0032] In this embodiment, the base 331 is provided with a second air exchange port. The base 331 is disposed on the first fan 32 . The second air exchange port is connected to the air outlet duct 43 .

[0033] In this embodiment, the first fan 32 is provided with a third air exchange port 321 , and the third air exchange port 321 is connected to the air inlet duct 42 .

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

[0035] In this embodiment, a first heat exchange section 343 and a second heat exchange section 344 are provided in the fresh air heat exchanger 34 , 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 a shell and tube heat exchanger or a sleeve and tube heat exchanger. In this embodiment, the outer shell of the fresh air heat exchanger 34 is a shell side 341, and the fresh air heat exchanger 34 includes two tube sides 342, one tube side 342 is a first heat exchange section 343, and the other tube side 342 is a second heat exchange section 344.

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

[0037] In this embodiment, the first shell 3 with a magnetic levitation structure is installed on the side of the indoor unit 1 with a motor and a wire board. After power is turned on, the opening and closing cover is stably controlled by the magnetic levitation structure. Specifically, the electromagnetic coil is started, 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 on the rear side of the first fan 32 for connecting to the air inlet pipe 42. A second fan 41 is set 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 air exchange is required, the first fan 32 and the second fan 41 are started respectively. When the first fan 32 is started, the first fan 32 draws the indoor exhaust gas into the air duct 42, and then the first fan 32 transports 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, and the magnetic levitation mechanism opens the first air exchange port 3311, and cooperates with the second fan 41 to draw the outdoor fresh air through the fourth air exchange port 411 into the air outlet 43, and finally transports it to the indoor through the air outlet 43 and the first air exchange port 3311, completing the discharge of the old air, thereby realizing the exchange of indoor fresh air.

[0039] Among them, when the indoor exhaust gas enters the air inlet pipe 42, a part of the heat energy or cold energy of the old air enters the fresh air heat exchanger 34 through the first heat exchange section 343, and then in the fresh air heat exchanger 34, the cold energy or heat energy in the fresh air heat exchanger 34 is exchanged with the fresh air in the second heat exchange section 344 of the air outlet pipe 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 system or heating system, and reducing the overall energy consumption.

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

[0041] The fresh air system of this embodiment is applied to the heat pump air conditioner, and can perform pre-cooling or preheating when the indoor and outdoor air are replaced, effectively reducing the loss of indoor temperature due to ventilation, and ensuring that ventilation is achieved without opening windows without causing waste of energy consumption of the heat pump air conditioner.

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

[0043] In the cooling mode, the four-way valve 55 moves forward, the indoor heat exchanger 51 heats up the low-temperature, low-pressure refrigerant and converts it into a high-temperature, low-pressure refrigerant, which is then transported to the compressor 52. The compressor 52 converts the high-temperature, low-pressure refrigerant into a high-temperature, high-pressure refrigerant, which is then transported 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 transported to the expansion valve 54 and converted into a low-temperature, low-pressure refrigerant. The low-temperature, low-pressure refrigerant is transported to the indoor heat exchanger 51 to complete the cycle, so that the indoor unit 1 can cooperate to deliver cold air to the room.

[0044] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make further possible variations and modifications to the present invention, or modify the present invention into equivalent embodiments with equivalent variations. Therefore, any equivalent variations made in accordance with the principles of the present invention without departing from the content of the present invention's technical solution should be included within the scope of protection of the present invention.

Claims

1. A heat pump air conditioner with a fresh air system, comprising an indoor unit (1), an outdoor unit (2), a first shell (3), a second shell (4), an air inlet pipe (42), an air outlet pipe (43), and a fresh air heat exchanger (34), characterized in that: The first shell (3) is provided on the side wall of the indoor unit (1), and a first fan (32), a fresh air mechanism, and a fresh air heat exchanger (34) are provided in the first shell (3). The second fan (41) is connected to the fresh air mechanism, and the fresh air mechanism is connected to the indoor environment. The second shell (4) is provided on the top of the outdoor unit (2), and an air inlet pipe (42) and an air outlet pipe (43) are connected between the first shell (3) and the second shell (4), respectively. 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). Both the air inlet pipe (42) and the air outlet pipe (43) are used to connect the outdoor environment and the indoor environment. A first heat exchange section (343) and a second heat exchange section (344) are provided in the fresh air heat exchanger (34); 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: A first chamber (31) is formed in the first shell (3), and the first fan (32) and the fresh air mechanism are arranged in the first chamber (31).

3. The 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). A first air exchange port (3311) is provided on the top of the base (331), and the first air exchange port (3311) 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 in the base (331), and a magnet is provided in 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).

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

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

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

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

8. The heat pump air conditioner with a fresh air system according to claim 1, characterized in that: The fresh air heat exchanger (34) is a shell and tube heat exchanger or a sleeve and tube heat exchanger.

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