Air treatment equipment and control method thereof

Abstract

The invention discloses air treatment equipment and a control method thereof. The air processing equipment comprises a main body, the main body comprises a third air duct, a first air duct with a first door opening and closing structure and a second air duct with a second door opening and closing structure, and a first air passing opening and a third door opening and closing structure arranged at the first air passing opening are formed between the third air duct and the first air duct; a second air passing opening and a fourth door opening and closing structure arranged at the second air passing opening are arranged between the third air duct and the second air duct; the fan communicates with the first air duct and the second air duct, the first air passing opening is located in the side, facing the fan, of the first opening and closing door structure, and the second air passing opening is located in the side, facing the fan, of the second opening and closing door structure; and the heat exchanger is arranged in the first air duct or the second air duct. According to the scheme, the functions of refrigeration, heating, fresh air, air exchange and the like can be achieved only through one draught fan and one third air duct, the structure is simple, and the manufacturing cost is low.

Description

Technical Field

[0001] This invention relates to air conditioning equipment technology, and more specifically, to an air handling device and its control method. Background Technology

[0002] Bathroom air conditioners need to simultaneously provide cooling, heating, fresh air supply, and ventilation. Existing bathroom air conditioners with these functions suffer from complex structures and high manufacturing costs. Summary of the Invention

[0003] This invention provides an air treatment device with a simple structure and low manufacturing cost.

[0004] This invention also provides a control method for an air handling device.

[0005] The air handling equipment provided in this embodiment of the invention includes: a main body, comprising a third air duct, a first air duct having a first opening and closing structure, and a second air duct having a second opening and closing structure, wherein a first air outlet and a third opening and closing structure are provided at the first air outlet between the third air duct and the first air duct, and a second air outlet and a fourth opening and closing structure are provided at the second air outlet between the third air duct and the second air duct; a fan, connecting the first air duct and the second air duct, wherein the first air outlet is located on the side of the first opening and closing structure facing the fan, and the second air outlet is located on the side of the second opening and closing structure facing the fan; and a heat exchanger, disposed in either the first air duct or the second air duct.

[0006] In some exemplary embodiments, the heat exchanger is disposed in the second air duct, the second air outlet of the fan is connected to the second air duct, the first air outlet of the fan is connected to the first air duct, and one of the first air outlet and the second air outlet is an air inlet and the other is an air outlet.

[0007] In some exemplary embodiments, a partition plate is provided between the first air duct and the second air duct, the partition plate is provided with a fourth air outlet, the fan is located in the first air duct, and the second air outlet of the fan is connected to the second air duct through the fourth air outlet.

[0008] In some exemplary embodiments, the second door opening / closing structure includes a valve plate assembly pivotally disposed in the second air duct and configured to open and close the second air duct.

[0009] In some exemplary embodiments, the valve plate assembly is located between the heat exchanger and the fan, and includes a first valve plate assembly and a second valve plate assembly. The driving end of the first valve plate assembly and the driving end of the second valve plate assembly are respectively located on the upper part and the lower part of the peripheral wall of the second air duct. The swing end of the first valve plate assembly and the swing end of the second valve plate assembly are both located inside the second air duct.

[0010] Since the second air duct is closed, the swing end of the first valve plate assembly and the swing end of the second valve plate assembly abut against each other.

[0011] When the second air duct is opened, the swing end of the first valve plate assembly abuts against the upper side wall of the second air outlet of the fan, the swing end of the second valve plate assembly abuts against the lower side wall of the second air outlet of the fan, and the second air outlet is located between the first valve plate assembly and the second valve plate assembly in the vertical direction.

[0012] In some exemplary embodiments, the second door opening structure further includes: a mounting bracket with a third air inlet located within the second air duct, the periphery of the mounting bracket being sealed to the peripheral wall of the second air duct, and the valve plate assembly being swayably disposed at the third air inlet and configured to open and close the third air inlet;

[0013] When the valve plate assembly opens the third air inlet, the second air duct is opened.

[0014] The second air duct is closed when the valve plate assembly closes the third air outlet.

[0015] In some exemplary embodiments, the mounting bracket and the valve plate assembly are located between the second air vent and the heat exchanger.

[0016] In some exemplary embodiments, the first air duct and the second air duct are located on one side of the third air duct, and the first air outlet and / or the second air outlet are further provided with a filter device.

[0017] In some exemplary embodiments, the main body further includes: a housing, which forms a first air duct and a second air duct arranged sequentially in a first direction; and a cover, which is located on one side of the housing in a second direction and fixed to the housing, wherein the portion of the housing covered by the cover is provided with a first air outlet and a second air outlet, and a fifth air outlet is provided on the side of the cover facing away from the housing, wherein the first direction and the second direction intersect; and an air duct, which is disposed at the fifth air outlet, wherein the cover and the air duct together form the third air duct.

[0018] The control method for an air handling device provided in this embodiment of the invention includes: operating the fan to control the first door opening / closing structure, the second door opening / closing structure, the third door opening / closing structure, and the fourth door opening / closing structure.

[0019] In some exemplary embodiments, the heat exchanger is disposed in the second air duct, the second air outlet of the fan is connected to the second air duct, and the first air outlet of the fan is connected to the first air duct; the air handling equipment has a first mode and a second mode; the step of controlling the first door opening / closing structure, the second door opening / closing structure, the third door opening / closing structure, and the fourth door opening / closing structure includes:

[0020] In the first mode: the second door opening structure is controlled to open the second air duct, the third door opening structure is controlled to open the first air outlet, the first door opening structure is controlled to close the first air duct, and the fourth door opening structure is controlled to close the second air outlet;

[0021] In the second mode: the first door opening structure opens the first air duct, the fourth door opening structure opens the second air inlet, the second door opening structure closes the second air duct, and the third door opening structure closes the first air inlet.

[0022] In some exemplary embodiments, the heat exchanger is disposed in the second air duct, the second air outlet of the fan is connected to the second air duct, and the first air outlet of the fan is connected to the first air duct; the air handling equipment has a third mode and a fourth mode; the step of controlling the first door opening / closing structure, the second door opening / closing structure, the third door opening / closing structure, and the fourth door opening / closing structure includes:

[0023] In the third mode: the heat pump system of the air handling equipment is controlled to operate, the first door opening structure opens the first air duct, the second door opening structure opens the second air duct, the third door opening structure opens the first air outlet, and the fourth door opening structure closes the second air outlet;

[0024] In the fourth mode: the heat pump system of the air handling equipment is controlled to operate, the first door opening structure opens the first air duct, the second door opening structure opens the second air duct, the fourth door opening structure opens the second air outlet, and the third door opening structure closes the first air outlet.

[0025] In some exemplary embodiments, the air handling device has a fifth mode; the step of controlling the first door opening / closing structure, the second door opening / closing structure, the third door opening / closing structure, and the fourth door opening / closing structure further includes:

[0026] In the fifth mode: the heat pump system of the air handling equipment is controlled to operate, the first switch door structure opens the first air duct, the second switch door structure opens the second air duct, the third switch door structure closes the first air outlet, and the fourth switch door structure shuts off the second air outlet.

[0027] The air handling equipment provided in this embodiment of the invention operates a fan and controls the first, second, third, and fourth door opening structures to open and close the first air duct, second air duct, first air outlet, and second air outlet in a controlled manner. In conjunction with the operation or shutdown of the heat pump system of the air handling equipment, it can realize the functions of cooling, heating, fresh air supply, and ventilation. This solution only requires one fan and one third air duct, and its structure is simple and its manufacturing cost is low.

[0028] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0029] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0030] Figure 1 This is a top view sectional view of an air handling device provided in some embodiments of this application;

[0031] Figure 2 for Figure 1 The diagram shows a left-side cross-sectional view of the air handling unit in its operational state, with the second air duct open at this time.

[0032] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the air handling unit in another operating state, in which the second air duct is shut off.

[0033] Figure 4 This is a left-side cross-sectional view of an air handling device in use, provided in some other embodiments of this application, where the second air duct is open.

[0034] Figure 5 for Figure 4 The diagram shows a cross-sectional view of the air handling unit in another operating state, where the second air duct is shut off.

[0035] The correspondence between the reference numerals and the component names is as follows:

[0036] 100 Main body, 110 First air duct, 120 Second air duct, 130 Third air duct, 140 First air outlet, 150 Second air outlet, 160 Partition plate, 170 Shell, 180 Cover, 190 Air duct, 220 Second door opening structure, 221 First valve plate assembly, 222 Second valve plate assembly, 223 Mounting bracket, 224 Valve plate assembly, 230 Third door opening structure, 240 Fourth door opening structure, 300 Fan, 310 First air outlet, 320 Second air outlet, 400 Heat exchanger. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0038] The air handling equipment provided in the embodiments of the present invention, such as Figures 1 to 5 As shown, it includes: a main body 100, which includes a third air duct 130, a first air duct 110 having a first opening and closing structure 210, and a second air duct 120 having a second opening and closing structure 220; a first air passage 140 and a third opening and closing structure 230 disposed at the first air passage 140 are provided between the third air duct 130 and the first air duct 110; a second air passage 150 and a fourth opening and closing structure 240 disposed at the second air passage 150 are provided between the third air duct 130 and the second air duct 120; a fan 300, which connects the first air duct 110 and the second air duct 120; the first air passage 140 is located on the side of the first opening and closing structure 210 facing the fan 300; and the second air passage 150 is located on the side of the second opening and closing structure 220 facing the fan 300; and a heat exchanger 400, which is disposed in either the first air duct 110 or the second air duct 120. The first door opening structure 210 is configured to open and close the first air duct 110, the second door opening structure 220 is configured to open and close the second air duct 120, the third door opening structure 230 is configured to open and close the first air outlet 140, the fourth door opening structure 240 is configured to open and close the second air outlet 150, the third air duct 130 is configured to connect with the outside, and the first air duct 110 and the second air duct 120 are both configured to connect with the indoor environment.

[0039] This air handling unit operates a fan 300. By controlling the first door opening structure 210, the second door opening structure 220, the third door opening structure 230, and the fourth door opening structure 240, the first air duct 110, the second air duct 120, the first air outlet 140, and the second air outlet 150 are opened and closed in a controlled manner. In conjunction with the operation or shutdown of the heat pump system of the air handling unit, the functions of cooling, heating, fresh air supply, and ventilation can be realized. This solution only requires one fan 300 and one third air duct 130 (so the wall only needs to be opened to connect the indoor and outdoor spaces). Its structure is simple and its manufacturing cost is low.

[0040] Alternatively, the heat exchanger 400 may be located within the first air duct 110; or the heat exchanger 400 may be located within the second air duct 120. Both of these can achieve the purpose of this application, and their intent does not depart from the design concept of this invention. They will not be elaborated further here, and should all fall within the protection scope of this application.

[0041] The following is a detailed explanation using the example of a heat exchanger 400 located in the second air duct 120, a fan 300 whose second air outlet 320 is connected to the second air duct 120, and a fan 300 whose first air outlet 310 is connected to the first air duct 110.

[0042] In some examples, the air handling unit has a first mode, a second mode, a third mode, a fourth mode, and a fifth mode.

[0043] In the first mode: control the second door opening structure 220 to open the second air duct 120, the third door opening structure 230 to open the first air outlet 140, the first door opening structure 210 to close the first air duct 110, and the fourth door opening structure 240 to close the second air outlet 150.

[0044] For the technical solution where the first air vent 310 is the air inlet and the second air vent 320 is the air outlet, the first mode is the fresh air mode. In this mode, outside air enters the second air duct 120 from the third air duct 130, passing sequentially through the first air outlet 140, the first air duct 110, and the fan 300, and is then blown into the room through the second air duct 120 (see...). Figure 1 (The airflow direction is shown by curve a in the diagram). This process can also operate the heat pump system of the air handling equipment, allowing the fresh air to exchange heat with the heat exchanger 400, thus reducing the temperature difference between the fresh air and the indoor air.

[0045] For the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the first mode is the exhaust mode. In this mode, indoor air enters the third air outlet 130 from the second air duct 120, passing sequentially through the fan 300, the first air duct 110, and the first air inlet 140, and is then blown to the outside through the third air outlet 130 (the airflow direction at this time is...). Figure 1 The curve a in the figure shows the opposite direction of the airflow.

[0046] In the second mode: control the first door opening structure 210 to open the first air duct 110, the fourth door opening structure 240 to open the second air outlet 150, the second door opening structure 220 to close the second air duct 120, and the third door opening structure 230 to close the first air outlet 140.

[0047] For the technical solution where the first air vent 310 is an air inlet and the second air vent 320 is an air outlet, the second mode is the exhaust mode. In this mode, indoor air enters the third air vent 130 from the first air duct 110, passing sequentially through the fan 300, the second air duct 120, and the second air outlet 150, and is then blown to the outside through the third air duct 130 (see...). Figure 1 The airflow direction is shown by curve b in the figure.

[0048] For the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the second mode is the fresh air mode. In this mode, outside air enters the first air duct 110 from the third air duct 130, passing sequentially through the second air outlet 150, the second air duct 120, and the fan 300, and is then blown into the room through the first air duct 110 (the airflow direction at this time is...). Figure 1 (The direction of airflow is opposite to that shown by curve b in the figure).

[0049] In the third mode: control the operation of the heat pump system of the air handling equipment, the first door opening structure 210 opens the first air duct 110, the second door opening structure 220 opens the second air duct 120, the third door opening structure 230 opens the first air outlet 140, and the fourth door opening structure 240 closes the second air outlet 150.

[0050] For the technical solution where the first air vent 310 is the air inlet and the second air vent 320 is the air outlet, the third mode is a fresh air + heat exchange mode. In this mode, outside air enters the second air duct 120 from the third air duct 130, passing sequentially through the first air vent 140, the first air duct 110, and the fan 300. Then, it is blown into the room through the second air duct 120. The fresh air exchanges heat with the heat exchanger 400 as it passes through it (see...). Figure 1 (The airflow direction is shown by curve a in the diagram); indoor air enters the second air duct 120 through the first air duct 110 and the fan 300, and is then blown into the room through the second air duct 120. During its passage through the heat exchanger 400, the indoor air exchanges heat with the heat exchanger 400 (see...). Figure 1 Curve c in the figure shows the airflow direction and Figure 2 (The airflow direction is shown by curve d in the diagram). This solution can reduce the temperature difference between fresh air and indoor air.

[0051] For the technical solution where the first air outlet 310 is an air outlet and the second air outlet 320 is an air inlet, the third mode is an exhaust + heat exchange mode. In this mode, indoor air enters the first air outlet 110 from the second air duct 120 via the fan 300, and then a portion enters the third air outlet 130 from the first air vent 140, and is blown to the outside through the third air outlet 130 (the airflow direction at this time is...). Figure 1 (The airflow direction is opposite to that shown by curve a in the diagram), and another part is blown into the room through the first air duct 110 (at this time, the airflow direction is...). Figure 1 The curve c in the figure shows the opposite direction of the airflow direction and Figure 2 (The airflow direction is opposite to that shown by curve d in the diagram). In this mode, indoor air exchanges heat with heat exchanger 400 as it passes through the heat exchanger 400.

[0052] In the fourth mode: control the operation of the heat pump system of the air handling equipment, the first door opening structure 210 opens the first air duct 110, the second door opening structure 220 opens the second air duct 120, the fourth door opening structure 240 opens the second air outlet 150, and the third door opening structure 230 closes the first air outlet 140.

[0053] For the technical solution where the first air vent 310 is the air inlet and the second air vent 320 is the air outlet, the fourth mode is the exhaust + heat exchange mode. In this mode, indoor air enters the second air duct 120 from the first air duct 110 via the fan 300, and then a portion enters the third air duct 130 from the second air outlet 150, and is blown to the outside through the third air duct 130 (see...). Figure 1 (The airflow direction is shown by curve b in the figure), and another part is blown into the room from the second air duct 120 (see...). Figure 1 Curve c in the figure shows the airflow direction and Figure 2 (The airflow direction is shown by curve d in the diagram). In this mode, the air passing through heat exchanger 400 exchanges heat with heat exchanger 400.

[0054] For the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the fourth mode is the fresh air + heat exchange mode. In this mode, outside air enters the second air outlet 120 from the third air duct 130 via the second air inlet 150 (the airflow direction at this time is...). Figure 1 Curve b in the diagram indicates the opposite direction of the airflow direction. Indoor air enters the second air duct 120 (at this time, the airflow direction is...). Figure 1 The curve c in the figure shows the opposite direction of the airflow direction and Figure 2 (The airflow direction is opposite to that shown by curve d in the diagram). The two parts of air then pass through the fan 300 and enter the first air duct 110, and are blown into the room through the first air duct 110. In this mode, the air passing through the heat exchanger 400 exchanges heat with the heat exchanger 400. This scheme can reduce the temperature difference between the fresh air and the indoor air.

[0055] In the fifth mode: the heat pump system of the air handling unit is controlled to operate; the first door opening structure 210 opens the first air duct 110; the second door opening structure 220 opens the second air duct 120; the third door opening structure 230 closes the first air outlet 140; and the fourth door opening structure 240 shuts off the second air outlet 150. For the technical solution where the first air outlet 310 is an air inlet and the second air outlet 320 is an air outlet, the fifth mode is a heat exchange mode (see...). Figure 1 Curve c in the figure shows the airflow direction and Figure 2 (The airflow direction is shown by curve d in the diagram); for the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the fifth mode is the heat exchange mode (at this time, the airflow direction is...). Figure 1 The curve c in the figure shows the opposite direction of the airflow direction and Figure 2 The curve d in the figure shows the opposite direction of the airflow.

[0056] The heat exchange modes include cooling mode and heating mode.

[0057] The first door opening and closing structure 210 may have one open position and one closed position; or the first door opening and closing structure 210 may have multiple open positions and one closed position; the second door opening and closing structure 220 may have one open position and one closed position; or the second door opening and closing structure 220 may have multiple open positions and one closed position; the third door opening and closing structure 230 may have one open position and one closed position; or the third door opening and closing structure 230 may have multiple open positions and one closed position; the fourth door opening and closing structure 240 may have one open position and one closed position; or the fourth door opening and closing structure 240 may have multiple open positions and one closed position. Those skilled in the art can reasonably set the positions of the first door opening and closing structure 210, the second door opening and closing structure 220, the third door opening and closing structure 230 and the fourth door opening and closing structure 240 when they are open as needed, which will not be elaborated here, but all should fall within the protection scope of this application.

[0058] In some examples, such as Figures 1 to 5 As shown, there is a partition plate 160 between the first air duct 110 and the second air duct 120. The partition plate 160 is provided with a fourth air outlet. The fan 300 is located in the first air duct 110. The second air outlet 320 of the fan 300 is connected to the second air duct 120 through the fourth air outlet. Thus, the first air outlet 310 of the fan 300 is connected to the first air duct 110 within the first air duct 110.

[0059] In some examples, such as Figures 2 to 5As shown, the second door opening and closing structure 220 includes: a valve plate assembly, which is swayably disposed in the second air duct 120, and is configured to open and close the second air duct 120.

[0060] In some embodiments, such as Figure 4 and Figure 5 As shown, the valve plate assembly is located between the heat exchanger 400 and the fan 300, and includes a first valve plate assembly 221 and a second valve plate assembly 222. The first valve plate assembly 221 includes a first valve plate and a first drive motor, and the second valve plate assembly 222 includes a second valve plate and a second drive motor. The first drive motor is located on the upper part of the peripheral wall of the second air duct 120, and the second drive motor is located on the lower part of the peripheral wall of the second air duct 120. The drive end of the first valve plate is driven by the first drive motor, and the drive end of the second valve plate is driven by the second drive motor. The swing ends of the first valve plate and the swing ends of the second valve plate are both located within the second air duct 120. Figure 5 As shown, the swing ends of the first valve plate and the second valve plate abut against each other to close the second air duct 120; Figure 4 As shown, the swing end of the first valve plate abuts against the upper side wall of the second air outlet 320 of the fan 300, and the swing end of the second valve plate abuts against the lower side wall of the second air outlet 320 of the fan 300, thereby opening the second air duct 120. At this time, the second air outlet 150 is located between the first valve plate and the second valve plate in the vertical direction and is not covered by the first valve plate and the second valve plate. The first valve plate and the second valve plate also play a role in guiding air at the second air outlet 320.

[0061] In other embodiments, such as Figure 2 and Figure 3 As shown, the second door opening / closing structure 220 further includes: a mounting bracket 223 with a third air inlet, the third air inlet being located within the second air duct 120, the periphery of the mounting bracket 223 being sealed to the periphery of the second air duct 120, and a valve plate assembly 224 being pivotally mounted at the third air inlet, the valve plate assembly 224 being configured to open and close the third air inlet. Figure 2 As shown, the valve plate assembly 224 opens the third air inlet, thereby opening the second air duct 120; as Figure 3 As shown, the valve plate assembly 224 closes the third air inlet, thereby closing the second air duct 120.

[0062] It could be that the valve plate assembly 224 and the third air outlet comprise a set; or it could be, as... Figure 2 and Figure 3 As shown, the valve plate assembly 224 and the third air outlet include multiple sets, which can be two, three, or four sets, etc.; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this invention, so they will not be repeated here, and all should fall within the protection scope of this application.

[0063] It can be, such as Figure 2 and Figure 3 As shown, the mounting bracket 223 and the valve plate assembly 224 are located between the second air outlet 150 and the heat exchanger 400; or the mounting bracket 223 and the valve plate assembly 224 can be located on the side of the heat exchanger 400 away from the fan 300 (such as the mounting bracket 223 and the valve plate assembly 224 being located at the end of the second air duct 120 away from the first air duct 110), etc.; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this invention, and will not be repeated here, and should all fall within the protection scope of this application.

[0064] In some examples, such as Figure 1 As shown, the first air duct 110 and the second air duct 120 are located on the same side of the third air duct 130. For the technical solution where the first air outlet 310 is an air inlet and the second air outlet 320 is an air outlet, a filter device is provided in the first air passage 140, while a filter device may not be provided in the second air passage 150; for the technical solution where the first air outlet 310 is an air outlet and the second air outlet 320 is an air inlet, a filter device is provided in the second air passage 150, while a filter device may not be provided in the first air passage 140.

[0065] In some embodiments, such as Figure 1 As shown, the main body also includes: a shell 170, which forms a first air duct 110 and a second air duct 120 arranged sequentially in a first direction; and a cover 180, which is located on one side of the shell 170 in a second direction and fixed to the shell 170. The portion of the shell 170 covered by the cover 180 is provided with a first air outlet 140 and a second air outlet 150. A fifth air outlet is provided on the side of the cover 180 facing away from the shell 170. The first direction and the second direction are set to intersect perpendicularly; and a duct 190, which is located at the fifth air outlet. The cover 180 and the duct 190 together form a third air duct 130, and the duct 190 is configured to communicate with the outside.

[0066] The cover 180 can be a single-piece structure; or it can be a split structure, such as the cover 180 comprising two parts, the first part comprising an upper plate, a front plate and a left plate, and the second part comprising a lower plate and a right plate, with the fifth air vent located on the front plate, etc.; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this invention, and will not be elaborated here, and should all fall within the protection scope of this application.

[0067] In some examples, the air handling unit also includes a heat pump system, which includes a heat exchanger 400. The main body also includes a temperature sensor and a humidity sensor, the temperature sensor configured to detect indoor temperature and the humidity sensor configured to detect indoor humidity.

[0068] In one embodiment, the first door opening / closing structure 210 includes a motor and a guide vane driven by the motor. For example... Figure 1 As shown, the third door opening / closing structure 230 includes a motor and a valve plate that is driven and connected to the motor. Figure 1 As shown, the fourth door opening structure 240 includes a motor and a valve plate that is driven and connected to the motor.

[0069] The control method for an air handling device provided in this embodiment of the invention (not shown in the figure) includes: operating a fan 300 to control a first door opening / closing structure 210, a second door opening / closing structure 220, a third door opening / closing structure 230, and a fourth door opening / closing structure 240.

[0070] The control method of this air handling equipment involves operating the fan 300 and controlling the first door opening structure 210, the second door opening structure 220, the third door opening structure 230, and the fourth door opening structure 240 respectively, so that the first air duct 110, the second air duct 120, the first air outlet 140, and the second air outlet 150 are opened and closed in a controlled manner. In conjunction with operating or shutting down the heat pump system of the air handling equipment, the functions of cooling, heating, fresh air supply, and ventilation can be realized.

[0071] In some examples, heat exchanger 400 is located in second air duct 120, second air outlet 320 of fan 300 is connected to second air duct 120, and first air outlet 310 of fan 300 is connected to first air duct 110; the air handling equipment has a first mode and a second mode; the steps for controlling the first door opening structure 210, the second door opening structure 220, the third door opening structure 230, and the fourth door opening structure 240 include:

[0072] In the first mode: control the second door opening structure 220 to open the second air duct 120, the third door opening structure 230 to open the first air inlet 140, the first door opening structure 210 to close the first air duct 110, and the fourth door opening structure 240 to close the second air inlet 150.

[0073] In the second mode: control the first door opening structure 210 to open the first air duct 110, the fourth door opening structure 240 to open the second air outlet 150, the second door opening structure 220 to close the second air duct 120, and the third door opening structure 230 to close the first air outlet 140.

[0074] In the first mode:

[0075] For the technical solution where the first air vent 310 is the air inlet and the second air vent 320 is the air outlet, the first mode is the fresh air mode. In this mode, outside air enters the second air duct 120 from the third air duct 130, passing sequentially through the first air outlet 140, the first air duct 110, and the fan 300, and is then blown into the room through the second air duct 120 (see...). Figure 1 (The airflow direction is shown by curve a in the diagram). This process can also be used to operate the heat pump system of the air handling unit, allowing fresh air to exchange heat with heat exchanger 400.

[0076] For the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the first mode is the exhaust mode. In this mode, indoor air enters the third air outlet 130 from the second air duct 120, passing sequentially through the fan 300, the first air duct 110, and the first air inlet 140, and is then blown to the outside through the third air outlet 130 (the airflow direction at this time is...). Figure 1 The curve a in the figure shows the opposite direction of the airflow.

[0077] In the second mode:

[0078] For the technical solution where the first air vent 310 is an air inlet and the second air vent 320 is an air outlet, the second mode is the exhaust mode. In this mode, indoor air enters the third air vent 130 from the first air duct 110, passing sequentially through the fan 300, the second air duct 120, and the second air outlet 150, and is then blown to the outside through the third air duct 130 (see...). Figure 1 The airflow direction is shown by curve b in the figure.

[0079] For the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the second mode is the fresh air mode. In this mode, outside air enters the first air duct 110 from the third air duct 130, passing sequentially through the second air outlet 150, the second air duct 120, and the fan 300, and is then blown into the room through the first air duct 110 (the airflow direction at this time is...). Figure 1 (The direction of airflow is opposite to that shown by curve b in the figure).

[0080] In some examples, heat exchanger 400 is located in second air duct 120, second air outlet 320 of fan 300 is connected to second air duct 120, and first air outlet 310 of fan 300 is connected to first air duct 110; the air handling equipment has a third mode and a fourth mode; the steps for controlling the first door opening / closing structure 210, the second door opening / closing structure 220, the third door opening / closing structure 230, and the fourth door opening / closing structure 240 include:

[0081] In the third mode: control the operation of the heat pump system of the air handling equipment, the first door opening structure 210 opens the first air duct 110, the second door opening structure 220 opens the second air duct 120, the third door opening structure 230 opens the first air outlet 140, and the fourth door opening structure 240 closes the second air outlet 150.

[0082] In the fourth mode: control the operation of the heat pump system of the air handling equipment, the first door opening structure 210 opens the first air duct 110, the second door opening structure 220 opens the second air duct 120, the fourth door opening structure 240 opens the second air outlet 150, and the third door opening structure 230 closes the first air outlet 140.

[0083] In the third mode:

[0084] For the technical solution where the first air vent 310 is the air inlet and the second air vent 320 is the air outlet, the third mode is a fresh air + heat exchange mode. In this mode, outside air enters the second air duct 120 from the third air duct 130, passing sequentially through the first air vent 140, the first air duct 110, and the fan 300. Then, it is blown into the room through the second air duct 120. The fresh air exchanges heat with the heat exchanger 400 as it passes through it (see...). Figure 1 (The airflow direction is shown by curve a in the diagram); indoor air enters the second air duct 120 through the first air duct 110 and the fan 300, and is then blown into the room through the second air duct 120. During the process of the indoor air passing through the heat exchanger 400, it exchanges heat with the heat exchanger 400. This scheme can reduce the temperature difference between the fresh air and the indoor air.

[0085] For the technical solution where the first air outlet 310 is an air outlet and the second air outlet 320 is an air inlet, the third mode is an exhaust + heat exchange mode. In this mode, indoor air enters the first air outlet 110 from the second air duct 120 via the fan 300, and then a portion enters the third air outlet 130 from the first air vent 140, and is blown to the outside through the third air outlet 130 (the airflow direction at this time is...). Figure 1 (The airflow direction is opposite to that shown by curve a in the diagram), and another part is blown into the room through the first air duct 110 (at this time, the airflow direction is...). Figure 1 The curve c in the figure shows the opposite direction of the airflow direction and Figure 2 (The airflow direction is opposite to that shown by curve d in the diagram). In this mode, indoor air exchanges heat with heat exchanger 400 as it passes through the heat exchanger 400.

[0086] In the fourth mode:

[0087] For the technical solution where the first air vent 310 is the air inlet and the second air vent 320 is the air outlet, the fourth mode is the exhaust + heat exchange mode. In this mode, indoor air enters the second air duct 120 from the first air duct 110 via the fan 300, and then a portion enters the third air duct 130 from the second air outlet 150, and is blown to the outside through the third air duct 130 (see...). Figure 1 (The airflow direction is shown by curve b in the figure), and another part is blown into the room from the second air duct 120 (see...). Figure 1 Curve c in the figure shows the airflow direction and Figure 2(The airflow direction is shown by curve d in the diagram). In this mode, the air passing through heat exchanger 400 exchanges heat with heat exchanger 400.

[0088] For the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the fourth mode is the fresh air + heat exchange mode. In this mode, outside air enters the second air outlet 120 from the third air duct 130 via the second air inlet 150 (the airflow direction at this time is...). Figure 1 Curve b in the diagram indicates the opposite direction of the airflow direction. Indoor air enters the second air duct 120 (at this time, the airflow direction is...). Figure 1 The curve c in the figure shows the opposite direction of the airflow direction and Figure 2 (The airflow direction is opposite to that shown by curve d in the diagram). The two parts of air then pass through the fan 300 and enter the first air duct 110, and are blown into the room through the first air duct 110. In this mode, the air passing through the heat exchanger 400 exchanges heat with the heat exchanger 400. This scheme can reduce the temperature difference between the fresh air and the indoor air.

[0089] In some examples, the air handling unit has a fifth mode; the steps of controlling the first door opening / closing structure 210, the second door opening / closing structure 220, the third door opening / closing structure 230, and the fourth door opening / closing structure 240 further include:

[0090] In the fifth mode: control the operation of the heat pump system of the air handling equipment, the first door opening structure 210 opens the first air duct 110, the second door opening structure 220 opens the second air duct 120, the third door opening structure 230 closes the first air outlet 140, and the fourth door opening structure 240 shuts off the second air outlet 150.

[0091] For the technical solution where the first air outlet 310 is the air inlet and the second air outlet 320 is the air outlet, the fifth mode is the heat exchange mode (see...). Figure 1 Curve c in the figure shows the airflow direction and Figure 2 (The airflow direction is shown by curve d in the diagram); for the technical solution where the first air outlet 310 is the air outlet and the second air outlet 320 is the air inlet, the fifth mode is the heat exchange mode (at this time, the airflow direction is...). Figure 1 The curve c in the figure shows the opposite direction of the airflow direction and Figure 2 The curve d in the figure shows the opposite direction of the airflow.

[0092] The heat exchange modes include cooling mode and heating mode.

[0093] It can be that the first door opening and closing structure 210 has an open position and a closed position; or it can be that the first door opening and closing structure 210 has multiple open positions and a closed position; it can be that the second door opening and closing structure 220 has an open position and a closed position; or it can be that the second door opening and closing structure 220 has multiple open positions and a closed position; it can be that the third door opening and closing structure 230 has an open position and a closed position; or it can be that the third door opening and closing structure 230 has multiple open positions and a closed position; it can be that the fourth door opening and closing structure 240 has an open position and a closed position; or it can be that the fourth door opening and closing structure 240 has multiple open positions and a closed position; those skilled in the art can reasonably set the positions of the first door opening and closing structure 210, the second door opening and closing structure 220, the third door opening and closing structure 230, and the fourth door opening and closing structure 240 when they are open, which will not be elaborated here, but all should fall within the protection scope of this application.

[0094] In summary, for the air handling device provided by the embodiment of the present invention, when the fan is running, by respectively controlling the first door opening and closing structure, the second door opening and closing structure, the third door opening and closing structure, and the fourth door opening and closing structure, the first air duct, the second air duct, the first air inlet, and the second air inlet are controlled to open and close, and in cooperation with running or shutting down the heat pump system of the air handling device, functions such as refrigeration, heating, fresh air, and ventilation can be achieved. This solution only requires one fan and one third air duct, and has a simple structure and low manufacturing cost.

[0095] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "perimeter", "the "mouth" structure", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0096] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, terms such as "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", "fixed connection" can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0097] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and changes to the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection of this invention shall still be defined by the appended claims.

Claims

1. An air handling device, characterized in that, include: The main body includes a third air duct, a first air duct with a first opening and closing structure, and a second air duct with a second opening and closing structure. The third air duct and the first air duct have a first air passage and a third opening and closing structure disposed at the first air passage. The third air duct and the second air duct have a second air passage and a fourth opening and closing structure disposed at the second air passage. A fan connects the first air duct and the second air duct. The first air inlet is located on the side of the first door structure facing the fan, and the second air inlet is located on the side of the second door structure facing the fan. and The heat exchanger is located in either the first air duct or the second air duct.

2. The air handling equipment according to claim 1, characterized in that, The heat exchanger is located in the second air duct, the second air outlet of the fan is connected to the second air duct, the first air outlet of the fan is connected to the first air duct, and one of the first air outlet and the second air outlet is an air inlet and the other is an air outlet.

3. The air handling equipment according to claim 2, characterized in that, A partition plate is provided between the first air duct and the second air duct. The partition plate is provided with a fourth air inlet. The fan is located inside the first air duct. The second air inlet of the fan is connected to the second air duct through the fourth air inlet.

4. The air handling equipment according to claim 2, characterized in that, The second door opening and closing structure includes: A valve plate assembly is pivotally disposed in the second air duct and configured to open and close the second air duct.

5. The air handling equipment according to claim 4, characterized in that, The valve plate assembly is located between the heat exchanger and the fan, and includes a first valve plate assembly and a second valve plate assembly. The driving end of the first valve plate assembly and the driving end of the second valve plate assembly are respectively located on the upper part and the lower part of the peripheral wall of the second air duct. The swing end of the first valve plate assembly and the swing end of the second valve plate assembly are both located inside the second air duct. Since the second air duct is closed, the swing end of the first valve plate assembly and the swing end of the second valve plate assembly abut against each other. When the second air duct is opened, the swing end of the first valve plate assembly abuts against the upper side wall of the second air outlet of the fan, the swing end of the second valve plate assembly abuts against the lower side wall of the second air outlet of the fan, and the second air outlet is located between the first valve plate assembly and the second valve plate assembly in the vertical direction.

6. The air handling equipment according to claim 4, characterized in that, The second door opening and closing structure also includes: A mounting bracket is provided with a third air inlet, the third air inlet being located inside the second air duct, the periphery of the mounting bracket being sealed to the periphery of the second air duct, and the valve plate assembly being swayably disposed at the third air inlet, configured to open and close the third air inlet; When the valve plate assembly opens the third air inlet, the second air duct is opened. The second air duct is closed when the valve plate assembly closes the third air outlet.

7. The air handling equipment according to claim 6, characterized in that, The mounting bracket and the valve plate assembly are located between the second air inlet and the heat exchanger.

8. The air handling equipment according to claim 2, characterized in that, The first air duct and the second air duct are located on one side of the third air duct, and the first air outlet and / or the second air outlet are also provided with a filter device.

9. A control method for an air handling device as described in any one of claims 1 to 8, characterized in that, include: The fan is operated to control the first, second, third, and fourth door opening and closing structures.

10. The control method according to claim 9, characterized in that, The heat exchanger is located in the second air duct, the second air outlet of the fan is connected to the second air duct, and the first air outlet of the fan is connected to the first air duct; the air handling equipment has a first mode and a second mode. The steps for controlling the first, second, third, and fourth door opening and closing structures include: In the first mode: the second door opening structure is controlled to open the second air duct, the third door opening structure is controlled to open the first air outlet, the first door opening structure is controlled to close the first air duct, and the fourth door opening structure is controlled to close the second air outlet; In the second mode: the first door opening structure opens the first air duct, the fourth door opening structure opens the second air inlet, the second door opening structure closes the second air duct, and the third door opening structure closes the first air inlet.

11. The control method according to claim 9, characterized in that, The heat exchanger is located in the second air duct, the second air outlet of the fan is connected to the second air duct, and the first air outlet of the fan is connected to the first air duct; the air handling equipment has a third mode and a fourth mode; The steps for controlling the first, second, third, and fourth door opening and closing structures include: In the third mode: the heat pump system of the air handling equipment is controlled to operate, the first door opening structure opens the first air duct, the second door opening structure opens the second air duct, the third door opening structure opens the first air outlet, and the fourth door opening structure closes the second air outlet; In the fourth mode: the heat pump system of the air handling equipment is controlled to operate, the first door opening structure opens the first air duct, the second door opening structure opens the second air duct, the fourth door opening structure opens the second air outlet, and the third door opening structure closes the first air outlet.

12. The control method according to claim 10 or 11, characterized in that, The air handling equipment has a fifth mode; The step of controlling the first, second, third, and fourth door opening and closing structures further includes: In the fifth mode: the heat pump system of the air handling equipment is controlled to operate, the first switch door structure opens the first air duct, the second switch door structure opens the second air duct, the third switch door structure closes the first air outlet, and the fourth switch door structure shuts off the second air outlet.

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