Multifunctional total heat exchange fresh air machine

Abstract

The invention provides a multifunctional total heat exchange fresh air fan which comprises a fan assembly and a direct evaporation assembly, and the fan assembly is provided with an outdoor fresh air inlet, an outdoor exhaust air outlet, an air supply outlet and a fan return air inlet; the direct evaporation assembly comprises a shell, and the interior of the shell is divided into a main air supply cavity, a first air supply cavity, a second air supply cavity and an indoor air return cavity. The main air supply cavity communicates with the air supply outlet; the first air supply cavity and the main air supply cavity are separated through a heat exchanger assembly. The main air supply cavity and the first air supply cavity are communicated with the second air supply cavity through valves in an on-off mode, and the first air supply cavity and the second air supply cavity are each provided with an air supply outlet penetrating through the shell. The indoor air return cavity is communicated with the fan air return opening and provided with an indoor air return opening penetrating through the shell. The multifunctional total heat exchange fresh air machine can achieve the functions of air purification, dehumidification, temperature control and the like, the functions are more diversified, and the user experience can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of indoor air control equipment, and more precisely, to a multi-functional total heat exchange fresh air fan. Background Art

[0002] The fresh air system realizes the replacement of indoor air by sending fresh air into the room and exhausting air to the outside. By introducing fresh air from the outside into the room, it meets the fresh air volume requirements of indoor personnel, dilutes the toxic gases in the room, and discharges them to the outside. In recent years, the penetration rate of the fresh air system has gradually increased.

[0003] Fresh air fans can be divided into two types: unidirectional flow fresh air fans and bidirectional flow fresh air fans. Unidirectional flow fans can only achieve unidirectional forced air supply or unidirectional exhaust. Bidirectional flow fresh air fans can force exhaust while forcing air supply, realizing the replacement and convection of indoor and outdoor air. In addition, bidirectional flow fresh air fans generally have an air heat exchange core inside. The incoming fresh air and the exhausted air will both pass through the air heat exchange core at the same time for energy exchange to make up for the temperature difference. The overall performance of bidirectional flow fresh air fans is better and the user experience is better.

[0004] With the continuous development of fresh air fan technology, users' requirements for fresh air fans have gradually increased. They not only need it to realize the fresh air circulation function, but also need to realize various indoor air environment control functions such as purification, dehumidification, sterilization, and temperature control. Existing fresh air fans are difficult to achieve multiple functions simultaneously and cannot meet users' needs. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a multi-functional total heat exchange fresh air fan, which integrates a direct evaporation component on the basis of a bidirectional flow fresh air fan to realize functions such as air purification, dehumidification, and temperature control.

[0006] To achieve the above purpose, the present invention provides a multi-functional total heat exchange fresh air fan, including a fan component and a direct evaporation component. The fan component has an outdoor fresh air inlet, an outdoor exhaust outlet, a air supply outlet, and a fan return air inlet; the direct evaporation component includes a housing, and the interior of the housing is divided into a main air supply chamber, a first air supply chamber, a second air supply chamber, and an indoor return air chamber; the main air supply chamber is communicated with the air supply outlet; the first air supply chamber and the main air supply chamber are separated by a heat exchanger component; the main air supply chamber and the first air supply chamber are respectively and communicably connected to the second air supply chamber through valves. Both the first air supply chamber and the second air supply chamber have air supply outlets penetrating the housing; the indoor return air chamber is communicated with the fan return air inlet, and the indoor return air chamber has an indoor return air outlet passing through the housing.

[0007] Preferably, the fan assembly includes a fan housing and a fresh air filter, an outdoor exhaust fan, an air heat exchange core, a fresh air supply fan, and a return air filter installed inside the fan housing, the fresh air filter is docked with the outdoor fresh air inlet, the outdoor exhaust fan is docked with the outdoor exhaust outlet, the fresh air supply fan is docked with the air supply outlet, and the return air filter is docked with the fan return air outlet.

[0008] Preferably, the fresh air supply fan and the return air filter are separated by a partition to form a fan supply chamber for accommodating the fresh air supply fan and a fan return chamber for accommodating the return air filter. The partition is provided with an internal circulation valve, and the fan supply chamber and the fan return chamber can be connected and disconnected through the internal circulation valve.

[0009] Preferably, the main air supply chamber is connected to the second air supply chamber in a switchable manner via a first valve, and the first air supply chamber is connected to the second air supply chamber in a switchable manner via a second valve.

[0010] Preferably, the heat exchanger assembly has an electromagnetic expansion valve.

[0011] Preferably, the multifunctional full heat exchange fresh air fan shares an outdoor unit with the central air conditioner and is controlled by the same control system.

[0012] Preferably, during external circulation, the outdoor exhaust fan and the fresh air supply fan work simultaneously, and the internal circulation valve is closed; during internal circulation, the outdoor exhaust fan stops working, and the outdoor fresh air inlet and the outdoor exhaust outlet are both closed, and the internal circulation valve is turned on.

[0013] Preferably, when the multifunctional full heat exchange fresh air fan performs the whole-house air purification function, the first valve is turned on, the second valve is closed, and the first air outlet is closed.

[0014] Preferably, when the multifunctional full heat exchange fresh air fan performs a dehumidification function, the first valve is closed, the second valve is turned on, the first air supply outlet is turned on, and the second air supply outlet is turned on.

[0015] Preferably, when the multifunctional full heat exchange fresh air fan performs the temperature and humidity control function of a specific place, the first valve is closed, the second valve is closed, and the first air supply outlet is connected.

[0016] Compared with the prior art, the advantages of the multifunctional full heat exchange fresh air fan disclosed in the present invention are: the multifunctional full heat exchange fresh air fan can realize functions such as air purification, dehumidification, temperature control, etc., with more diverse functions, which helps to improve user experience; the multifunctional full heat exchange fresh air fan can be integrated with the central air-conditioning system to achieve energy saving and noise reduction effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The figure shows a cross-sectional view of a multi-functional total heat exchange fresh air machine of the present invention.

[0019] Figure 2 The figure shows a cross-sectional view of the direct evaporation component of a multi-functional total heat exchange fresh air machine of the present invention.

[0020] Figure 3 The figure shows a schematic diagram of the air flow when a multi-functional total heat exchange fresh air machine of the present invention performs an external circulation.

[0021] Figure 4 The figure shows a schematic diagram of the air flow when a multi-functional total heat exchange fresh air machine of the present invention purifies the air.

[0022] Figure 5 The figure shows a schematic diagram of the air flow when a multi-functional total heat exchange fresh air machine of the present invention dehumidifies.

[0023] Figure 6 The figure shows a schematic diagram of the air flow when a multi-functional total heat exchange fresh air machine of the present invention controls the temperature and humidity in a specific place. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Such as Figure 1 And Figure 2As shown, the present application discloses a multifunctional full heat exchange fresh air fan including a fan assembly 1 and a direct evaporation assembly 2. The fan assembly 1 is a two-way flow fresh air fan having an outdoor fresh air inlet 111, an outdoor exhaust air outlet 121, an air supply outlet and a fan return air outlet; the direct evaporation assembly 2 includes a shell 20, the interior of the shell 20 is divided into a main air supply chamber 210, a first air supply chamber 2100, a second air supply chamber 22 and an indoor return air chamber 23; the main air supply chamber 210 is connected to the air supply outlet; the first air supply chamber 2100 is separated from the main air supply chamber 210 by a heat exchanger assembly 21; the main air supply chamber 210 and the first air supply chamber 2100 are respectively connected to the second air supply chamber 22 through valves, and the first air supply chamber 2100 and the second air supply chamber 22 both have air supply outlets penetrating the shell 20; the indoor return air chamber 23 is connected to the fan return air outlet, and the indoor return air chamber 23 has an indoor return air outlet 231 passing through the shell 20. The fan assembly 1 is connected to the indoor through the direct evaporation assembly 2. By controlling the on-off state of the outdoor fresh air inlet 111 and the outdoor exhaust outlet 121 of the fan assembly 1, the internal circulation and external circulation function switching of the multifunctional full heat exchange fresh air fan can be changed. By controlling the on-off state of the internal valve of the direct evaporation assembly 2, the function switching of the multifunctional full heat exchange fresh air fan during the internal circulation and external circulation can be realized.

[0026] Specifically, the fan assembly 1 includes a fan housing 10 and a fresh air filter 11 installed inside the fan housing 10, an outdoor exhaust fan 12, an air heat exchange core 13, a fresh air supply fan 14, and a return air filter 15. The air heat exchange core 13 is arranged at the center of the fan housing 10, the fresh air filter 11 is connected to the outdoor fresh air inlet 111, the outdoor exhaust fan 12 is connected to the outdoor exhaust outlet 121, the fresh air supply fan 14 is connected to the air supply outlet, and the return air filter 15 is connected to the fan return air outlet. During external circulation, the outdoor exhaust fan 12 and the fresh air supply fan 14 work at the same time.

[0027] Furthermore, the fresh air supply fan 14 and the return air filter 15 are located on one side of the air heat exchange core 13, and the fresh air supply fan 14 and the return air filter 15 are separated by a partition to form a fan supply air chamber 140 for accommodating the fresh air supply fan 14 and a fan return air chamber 150 for accommodating the return air filter 15. The partition is provided with an internal circulation valve 141, and the fan supply air chamber 140 and the fan return air chamber 150 can be connected and disconnected through the internal circulation valve 141. During external circulation, the internal circulation valve 141 is closed; during internal circulation, the internal circulation valve 141 is turned on. The outdoor exhaust fan 12, the fresh air supply fan 14 and the internal circulation valve 141 are all controlled by the same control system, and the working state can be changed according to demand control.

[0028] The main air supply chamber 210 is communicably connected to the second air supply chamber 22 through the first valve 2102, and the first air supply chamber 2100 is communicably connected to the second air supply chamber 22 through the second valve 2103. By controlling the on-off states of the first valve 2102 and the second valve 2103, different functions can be realized when the multifunctional total heat exchange fresh air machine is in the internal circulation and the external circulation.

[0029] The heat exchanger assembly 21 is provided with an electromagnetic expansion valve 211. The heat exchanger assembly 21 is controlled by the electromagnetic expansion valve 211 to change the temperature and realize the evaporation function. The electromagnetic expansion valve 211 passes through the housing 20 through the refrigerant inlet 2111 and the refrigerant outlet 2112 and is communicated with an external refrigerant container. The heat exchanger assembly 21 is provided with a condensate water outlet 212 passing through the housing 20, and the condensate water outlet 212 is communicated with an external condensate water collection container. By controlling the opening degree of the electromagnetic expansion valve 211, the working state of the heat exchanger assembly 21 can be controlled.

[0030] See Figure 3 , when the multifunctional total heat exchange fresh air machine performs the external circulation, the outdoor exhaust air fan 12 and the fresh air supply fan 14 work simultaneously, and the internal circulation valve 141 is closed. When the multifunctional total heat exchange fresh air machine performs the internal circulation, the outdoor exhaust air fan 12 stops working, and both the outdoor fresh air inlet 111 and the outdoor exhaust air outlet 121 are closed, and the internal circulation valve 141 is turned on.

[0031] See Figure 4 , when the multifunctional total heat exchange fresh air machine performs the whole-house air purification function, the heat exchanger assembly 21 does not need to work. At this time, the first valve 2102 is turned on, the second valve 2103 is closed, and the first air supply port 2101 is closed. When supplying air, the heat exchanger assembly 21 is bypassed, which can reduce the flow field resistance and improve the air supply volume and efficiency.

[0032] See Figure 5 , when the multifunctional total heat exchange fresh air machine performs the dehumidification function, the heat exchanger assembly 21 works. At this time, the first valve 2102 is closed, the second valve 2103 is turned on, the first air supply port 2101 is turned on, and the second air supply port 221 is turned on. When supplying air, purification is first performed, and the purified fresh air is dehumidified by evaporation through the heat exchanger assembly 21 and then discharged. The air volume is large, realizing the fresh air dehumidification function, which is suitable for high-temperature and high-humidity weather. The simultaneous opening of the first air supply port 2101 and the second air supply port 221 realizes the fresh air dehumidification function for two rooms in the room. The first air supply port 2101 can realize the horizontal fresh air dehumidification function, and the second air supply port 221 can realize the fresh air dehumidification function for the kitchen or the bathroom.

[0033] See Figure 6When the multifunctional full heat exchange fresh air fan performs the temperature and humidity control function in a specific place, the heat exchanger component 21 works, the first valve 2102 is closed, the second valve 2103 is closed, and the first air supply port 2101 is turned on. The air is first purified when it is supplied, and the purified fresh air is evaporated and dehumidified by the heat exchanger component 21 before being discharged. The air volume is relatively small, but the temperature is relatively high, which can realize the temperature and humidity regulation of specific spaces such as kitchens and bathrooms.

[0034] Preferably, the multifunctional full heat exchange fresh air fan shares an outdoor unit with the central air conditioner and is controlled by the same control system. By setting the multifunctional full heat exchange fresh air fan to share an outdoor unit with the central air conditioner, material installation costs can be saved, while noise from the indoor compressor can be avoided and energy consumption can be saved.

[0035] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional total heat exchange fresh air machine, characterized in that It includes a fan assembly and a direct evaporation assembly, wherein the fan assembly has an outdoor fresh air inlet, an outdoor exhaust air outlet, an air supply outlet and a fan return air outlet; the direct evaporation assembly includes a shell, the interior of the shell is divided into a main air supply chamber, a first air supply chamber, a second air supply chamber and an indoor return air chamber; The main air supply chamber is connected to the air supply outlet; the first air supply chamber and the main air supply chamber are separated by a heat exchanger assembly; the main air supply chamber and the first air supply chamber are connected to the second air supply chamber via valves, respectively, and the first air supply chamber and the second air supply chamber both have an air supply port penetrating the shell; the indoor return air chamber is connected to the fan return air port, and the indoor return air chamber has an indoor return air port passing through the shell.

2. The multifunctional total heat exchange fresh air machine according to claim 1, wherein, The fan assembly includes a fan housing and a fresh air filter installed inside the fan housing, an outdoor exhaust fan, an air heat exchange core, a fresh air supply fan, and a return air filter. The fresh air filter is connected to the outdoor fresh air inlet, the outdoor exhaust fan is connected to the outdoor exhaust outlet, the fresh air supply fan is connected to the air supply outlet, and the return air filter is connected to the fan return air outlet.

3. The multi-functional total heat exchange fresh air unit according to claim 2, characterized in that, The fresh air supply fan and the return air filter are separated by a partition to form a fan supply chamber for accommodating the fresh air supply fan and a fan return chamber for accommodating the return air filter. The partition is provided with an internal circulation valve, and the fan supply chamber and the fan return chamber can be connected and disconnected through the internal circulation valve.

4. The multifunctional total heat exchange fresh air blower according to claim 3, characterized in that, The main air supply chamber is connected to the second air supply chamber in a switchable manner through a first valve, and the first air supply chamber is connected to the second air supply chamber in a switchable manner through a second valve.

5. The multifunctional total heat exchange fresh air unit according to claim 1, characterized in that The heat exchanger assembly has a solenoid expansion valve.

6. The multi-functional total heat exchange fresh air machine according to claim 1, wherein, The multifunctional full heat exchange fresh air fan shares an outdoor unit with the central air conditioner and is controlled by the same control system.

7. The multifunctional total heat exchange fresh air blower according to claim 4, characterized in that, During external circulation, the outdoor exhaust fan and the fresh air supply fan work simultaneously, and the internal circulation valve is closed. During internal circulation, the outdoor exhaust fan stops working, and the outdoor fresh air inlet and the outdoor exhaust outlet are both closed, and the internal circulation valve is turned on.

8. The multifunctional total heat exchange fresh air unit according to claim 7, characterized in that, When the multifunctional full heat exchange fresh air fan performs the whole-house air purification function, the first valve is turned on, the second valve is closed, and the first air supply port is closed.

9. The multifunctional total heat exchange fresh air blower according to claim 7, characterized in that, When the multifunctional full heat exchange fresh air fan performs the dehumidification function, the first valve is closed, the second valve is turned on, the first air supply port is turned on, and the second air supply port is turned on.

10. The multifunctional total heat exchange fresh air unit according to claim 7, characterized in that, When the multifunctional full heat exchange fresh air fan performs the temperature and humidity control function of a specific place, the first valve is closed, the second valve is closed, and the first air supply outlet is connected.

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