Fresh air module and air conditioner

Abstract

The utility model provides a fresh air module and an air conditioner. The fresh air module comprises a fresh air duct, a first filter screen and a first driving mechanism. The fresh air duct is provided with a fresh air inlet and a fresh air outlet; the first filter screen is provided with more than two filter areas; the first driving mechanism is used for driving the first filter screen to move so that all the filter areas can be sequentially conveyed to the fresh air duct, and the first filter screen can filter air in the fresh air duct in turn through all the filter areas. Two or more filtering areas are designed on the first filtering net, the first filtering net filters air in the fresh air duct through the single filtering area on the first filtering net every time, and after the service life of the filtering area expires, the first filtering net can be driven to move so that the other filtering area can be sent to the fresh air duct; and the air in the fresh air duct is filtered by all the filtering areas in turn, so that the overall service time of the first filter screen can be prolonged, and the replacement frequency of the first filter screen is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning technology, specifically relating to a fresh air module and an air conditioner. Background Technology

[0002] Currently, during prolonged use of air conditioners, the levels of pollutants such as carbon dioxide in indoor air gradually increase, especially when the heating mode is on in winter, as the moisture content in the indoor air continuously decreases, leading to discomfort. Fresh air functionality is increasingly becoming an essential feature of air conditioning systems. However, in existing technologies, the filter lifespan of fresh air modules is relatively short, requiring frequent filter replacements and resulting in a poor user experience. Utility Model Content

[0003] Therefore, this utility model provides a fresh air module and an air conditioner, and the main technical problem to be solved is: how to reduce the frequency of filter replacement in order to optimize the user's actual user experience.

[0004] To solve the above problems, this utility model provides a fresh air module, which includes a fresh air duct, a first filter and a first drive mechanism;

[0005] The fresh air duct has a fresh air inlet and a fresh air outlet;

[0006] The first filter screen has two or more filtration zones;

[0007] The first driving mechanism is used to drive the first filter screen to move, so as to send each of the filtering areas to the fresh air duct in sequence, so that the first filter screen can filter the air in the fresh air duct in turn through each of the filtering areas.

[0008] In some embodiments, the first filter screen is annular, and each of the filter areas is arranged sequentially along the circumference of the first filter screen; the first filter screen is driven by the first drive mechanism to rotate around its own center line so as to send each of the filter areas sequentially to the fresh air duct.

[0009] In some embodiments, the first driving mechanism includes a power unit and a gear, and the first filter screen is provided with transmission teeth along its circumferential direction, the gear meshing with the transmission teeth; wherein, the first driving mechanism drives the gear to rotate through the power unit, so that the gear drives the first filter screen to rotate around its own center line through the transmission teeth.

[0010] In some embodiments, the fresh air duct includes a first duct section, which has an air inlet and an air outlet, and the air inlet of the first duct section serves as the fresh air inlet of the fresh air duct.

[0011] Specifically, the filtration area on the first filter screen that is sent to the fresh air duct is designated as the first filtration area. The first filter screen covers the air outlet of the first duct section through the first filtration area to filter the air in the fresh air duct.

[0012] In some embodiments, the fresh air duct further includes a second duct section, which has an air inlet and an air outlet. The air outlet of the second duct section serves as the fresh air outlet of the fresh air duct. The air inlet of the second duct section is connected to the air outlet of the first duct section. The air outlet of the first duct section is openable and closable.

[0013] In some embodiments, the fresh air module further includes a return air duct and a second filter, the second filter being used to filter the air in the return air duct;

[0014] The return air duct has an air outlet and an openable return air inlet. The air outlet of the return air duct is connected to the air inlet of the second duct section so that return air can be carried out through the second duct section. The fresh air module has a return air mode in which the return air inlet is opened and the air outlet of the first duct section is closed.

[0015] In some embodiments, the second filter screen covers the air outlet of the return air duct to filter the air in the return air duct;

[0016] The second filter screen is annular with an inner hole on its inner side. The inner hole of the second filter screen is opposite to the air inlet of the second air duct section, so that the air inlet of the second air duct section is connected to the air outlet of the return air duct through the inner hole of the second filter screen.

[0017] In some embodiments, when the first filter screen is annular, an inner hole is formed on the inner side of the first filter screen; the inner hole of the first filter screen is opposite to the air inlet of the second air duct section, so that the air inlet of the second air duct section is connected to the air outlet of the first air duct section through the inner hole of the first filter screen.

[0018] In some embodiments, the fresh air duct further includes a third duct section, the second duct section has an air outlet, and the second duct section is connected to the interior of the first duct section through the air outlet; the air inlet of the second duct section is connected to the room through the third duct section; the fresh air outlet, the air outlet, and the third duct section are all openable and closable;

[0019] The fresh air module has an air supply mode and an air exhaust mode. In the air supply mode, the air outlet of the first air duct section is open, the third air duct section is closed, the air passage is closed, and the fresh air outlet is open. In the air exhaust mode, the air outlet of the first air duct section is closed, the third air duct section is open, the air passage is open, and the fresh air outlet is closed.

[0020] In some embodiments, the fresh air module further includes a return air duct and a second filter for filtering the air in the return air duct, and the return air duct has an air outlet and an openable return air inlet. The air outlet of the return air duct is connected to the air inlet of the second duct section to allow return air to pass through the second duct section. The fresh air module has a return air mode. In the return air mode, the return air inlet is open and the air outlet of the first duct section is closed. In the return air mode, the third duct section is closed, the air passage is closed, and the fresh air outlet is open. In both the air outlet mode and the exhaust mode, the return air inlet is closed.

[0021] In some embodiments, the fresh air module further includes a fan, the air duct inside the fan forming part of the second air duct section, and the air inlet of the fan serving as the air inlet of the second air duct section;

[0022] In the air outlet mode, the fan drives the airflow to enter through the air inlet of the first air duct section, then flow into the air inlet of the second air duct section, and then exit through the fresh air outlet. In the exhaust mode, the fan drives the airflow to enter through the third air duct section, then flow into the air inlet of the second air duct section, then flow into the first air duct section through the air outlet, and then exit through the air inlet of the first air duct section. In the return air mode, the fan drives the airflow to enter through the return air inlet, then flow into the air inlet of the second air duct section, and then exit through the fresh air outlet.

[0023] In some embodiments, the fresh air module further includes a return air duct and a second filter, wherein the return air duct has a return air inlet, and the second filter covers the outlet of the return air duct to filter the air in the return air duct; and the second filter is annular with an inner hole formed on its inner side, the inner hole of the second filter being opposite to the air inlet of the second air duct section, so that the air inlet of the second air duct section communicates with the air outlet of the return air duct through the inner hole of the second filter; and the first filter is annular with an inner hole formed on its inner side; the inner hole of the first filter is opposite to the air inlet of the second air duct section, so that the air inlet of the second air duct section communicates with the air outlet of the first air duct section through the inner hole of the first filter.

[0024] The fresh air module has a housing, and the interior of the housing has a first mounting layer, a second mounting layer, and a third mounting layer separated by a partition plate. The second mounting layer is located between the first mounting layer and the third mounting layer. The fan is located on the first mounting layer, the first filter is located on the second mounting layer, and the second filter is located on the third mounting layer. The inner hole of the second filter is opposite to the inner hole of the first filter, so that the inner hole of the second filter is opposite to the air inlet of the second air duct section through the inner hole of the first filter.

[0025] In some embodiments, the housing has a first cover plate that covers the side of the inner hole of the second filter screen away from the first filter screen, and the third air duct section includes an air outlet provided on the first cover plate to communicate with the air inlet of the second air duct section through the air outlet; wherein the air outlet is opposite to the inner hole of the second filter screen, so that the air outlet communicates with the air inlet of the second air duct section through the inner hole of the second filter screen and the inner hole of the first filter screen in sequence.

[0026] In some embodiments, the air outlet of the first air duct section is located on the second mounting layer, and the fresh air module further includes a second driving mechanism and a baffle. The second driving mechanism is used to drive the baffle to move between the second mounting layer and the third mounting layer. The baffle is used to cover the air outlet of the first air duct section when it moves to the second mounting layer, and to open the air outlet of the first air duct section when it moves to the third mounting layer.

[0027] In some embodiments, the fresh air outlet includes a first fresh air outlet and a second fresh air outlet. The first fresh air outlet is used to directly connect to the indoor environment, and the second fresh air outlet is used to connect to the air duct of the air conditioning system, so as to connect to the indoor environment through the air duct of the air conditioning system. Both the first fresh air outlet and the second fresh air outlet can be opened and closed. When both the first fresh air outlet and the second fresh air outlet are closed, the fresh air outlet is closed, and when at least one of them is open, the fresh air outlet is opened.

[0028] This utility model also provides an air conditioner that includes the fresh air module described in any one of the above descriptions.

[0029] The fresh air module and air conditioner provided by this utility model have the following beneficial effects:

[0030] 1. By designing two or more filtration zones on the first filter screen, the first filter screen filters the air in the fresh air duct through a single filtration zone each time. When the service life of the filtration zone expires, the first filter screen can be driven to move to send another filtration zone to the fresh air duct, so that each filtration zone takes turns filtering the air in the fresh air duct. This can extend the overall service life of the first filter screen, reduce the replacement frequency of the first filter screen, and optimize the actual user experience.

[0031] 2. In actual use, when outdoor pollution is high, the fresh air module can achieve internal circulation of the indoor air conditioner through the return air mode, which can purify the indoor air.

[0032] 3. When the air inlet of the first air duct section is connected to the pipe, single-pipe air supply and exhaust can be achieved, eliminating the need for two separate pipes for air intake and exhaust, which is beneficial for user installation.

[0033] 4. By designing the fresh air mode as a three-layer structure, it is beneficial to reduce the overall size of the fresh air module in terms of length and width, making the structure of the fresh air module more compact. Attached Figure Description

[0034] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of a fresh air module provided in one embodiment of the present invention;

[0036] Figure 2 yes Figure 1 A schematic diagram of the structure in which the fresh air module conceals the first cover plate;

[0037] Figure 3 yes Figure 1 A partial structural diagram of the fresh air module;

[0038] Figure 4 This is a schematic diagram illustrating the structure of the second air duct section of the fresh air module;

[0039] Figure 5 This is a cross-sectional view of a fresh air module provided in one embodiment of this utility model;

[0040] Figure 6 This is a schematic diagram showing the air intake of the first air duct section of the fresh air module;

[0041] Figure 7 This is a schematic diagram showing the connection between the baffle and the lead screw;

[0042] Figure 8 This is a schematic diagram showing the air outlet of the first air duct section opened by the baffle;

[0043] Figure 9 This is a schematic diagram of the air outlet of the first air duct section after the baffle is closed;

[0044] Figure 10 This is a schematic diagram showing that the upper and lower sides of the first filter screen are guided by the first guide rail and the second guide rail respectively;

[0045] Figure 11 This is a schematic diagram showing the connection between the second fresh air outlet of a fresh air module and the air duct of an air conditioning system, according to an embodiment of this utility model.

[0046] Figure 12 This is a schematic diagram showing the fresh air module discharging air through the first fresh air outlet;

[0047] Figure 13 This is a schematic diagram showing the fresh air module discharging air through the second fresh air outlet;

[0048] Figure 14 This is a schematic diagram illustrating the intake of air into the fresh air module from the third air duct section;

[0049] Figure 15 This is a schematic diagram illustrating the exhaust air from the fresh air module;

[0050] Figure 16 This is a schematic diagram illustrating the return air from the fresh air module through the return air duct.

[0051] The attached figures are labeled as follows:

[0052] 1. First filter screen; 1a. Transmission gear; 1b. Filtering area; 2. First air duct section; 3. Drive motor; 4. Second filter screen; 5. Baffle; 6. Return air duct; 7. Connecting plate; 8. Bracket; 9. Second air duct section; 10. First cover plate; 11. Second cover plate; 13. Fan; 14. Gear; 15. First side wall; 16. Second side wall; 17. Air duct of air conditioning system; 18. First guide rail; 19. Second guide rail; 20a. First mounting layer; 20b. Second mounting layer; 20c. Third... Installation layer; 10a, air vent; 21, air inlet guide plate; 31, lead screw; 32, nut seat; 61, arc-shaped air duct section; 91, common side wall; 100, casing; 101, fresh air inlet; 102, fresh air outlet; 102a, first fresh air outlet; 102b, second fresh air outlet; 103, air passage; 171, heat exchanger; 201, air outlet of the first air duct section; 501, guide groove; 601, return air outlet; 602, air outlet of the return air duct; 901, air inlet of the second air duct section. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0054] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0057] See also Figure 1-16As shown in the figure, according to an embodiment of the present invention, a fresh air module is provided, which includes a fresh air duct, a first filter 1, and a first driving mechanism. The fresh air duct has a fresh air inlet 101 and a fresh air outlet 102. The first filter 1 has two or more filtration areas 1b. The first driving mechanism is used to drive the first filter 1 to move, so as to sequentially deliver each filtration area 1b to the fresh air duct, so that the first filter 1 can filter the air in the fresh air duct through each filtration area 1b in turn.

[0058] In the above example, by designing two or more filter areas 1b on the first filter 1, the first filter 1 filters the air in the fresh air duct through a single filter area 1b each time. When the service life of the filter area 1b expires, the first filter 1 can be driven to move to send another filter area 1b to the fresh air duct, so that each filter area 1b filters the air in the fresh air duct in turn. This can extend the overall service life of the first filter 1, reduce the replacement frequency of the first filter 1, and optimize the actual user experience.

[0059] It should be noted that the filter areas 1b on the first filter screen 1 may not overlap, or they may overlap only at the boundaries.

[0060] In some implementations, such as Figure 2-3 As shown, the aforementioned first filter 1 can be ring-shaped, and the aforementioned filter areas 1b are arranged sequentially along the circumference of the first filter 1. The first filter 1 is driven by the first drive mechanism to rotate around its own center line, so as to sequentially send each filter area 1b to the fresh air duct.

[0061] In the above example, by designing the first filter 1 as a ring, it is beneficial for the first filter 1 to rotate around its own center line and sequentially deliver each filtration area 1b to the fresh air duct. Moreover, compared with the general rectangular filter, the ring-shaped first filter 1 is more conducive to using the centrifugal fan 13 to draw in air, achieving a large air volume and increasing the user's comfort experience with the fresh air conditioning system.

[0062] To achieve the function of the aforementioned first driving mechanism, in some embodiments, such as Figure 6 As shown, the aforementioned first driving mechanism may include a power unit and a gear 14. The aforementioned first filter screen 1 has circumferentially arranged transmission teeth 1a, and the aforementioned gear 14 meshes with the transmission teeth 1a. Specifically, the first driving mechanism drives the gear 14 to rotate via the power unit, causing the gear 14 to drive the first filter screen 1 to rotate around its own center line via the transmission teeth 1a.

[0063] The aforementioned power device may include an electric motor to drive the gear 14 to rotate. The aforementioned first filter screen 1 may include a filter screen support and a filter screen body disposed on the filter screen support, the aforementioned transmission gear 1a is disposed on the filter screen support, and the aforementioned filtering areas 1b are all disposed on the filter screen body.

[0064] To improve the movement accuracy of the first filter 1, the aforementioned fresh air module may further include a guide mechanism to guide the movement of the first filter 1. For example, Figure 10 As shown, the guiding mechanism may include a first guide rail 18 and a second guide rail 19. The first guide rail 18 guides a first side of the first filter screen 1, and the second guide rail 19 guides a second side of the first filter screen 1. The first side and the second side are opposite sides of the first filter screen 1. When the first filter screen 1 is annular and is used to rotate around its own centerline, both the first guide rail 18 and the second guide rail 19 can be circular guide rails, and the first side and the second side are two sides in the direction of the centerline of the first filter screen 1.

[0065] In order to enable the filtration area 1b of the first filter 1 to filter the air in the fresh air duct after it is sent to the fresh air duct, in some embodiments, such as Figure 2-3 As shown, the aforementioned fresh air duct may include a first duct section 2, which has an air inlet and an air outlet 201. The air inlet of the first duct section 2 serves as the fresh air inlet 101 of the aforementioned fresh air duct. The filtration area 1b on the first filter 1 that is supplied to the fresh air duct is defined as the first filtration area. The first filter 1 covers the air outlet 201 of the first duct section through the first filtration area to filter the airflow from the fresh air duct.

[0066] In the above example, when the first filtration area covers the air outlet 201 of the first air duct section, the airflow of the fresh air duct can be filtered by the first filtration area when it passes through the air outlet 201 of the first air duct section, thereby achieving the purpose of filtering the airflow of the fresh air duct after the filtration area 1b of the first filter screen 1 is sent to the fresh air duct.

[0067] like Figure 2-3 As shown, the interior of the aforementioned first air duct section 2 may be provided with an air inlet guide plate 21, which is used to guide the air in the first air duct section 2 to the air outlet 201 of the first air duct section.

[0068] In some implementations, such as Figure 2-4 As shown, the aforementioned fresh air duct may further include a second duct section 9, which has an air inlet 901 and an air outlet. The air outlet of the second duct section 9 serves as the fresh air outlet 102 of the aforementioned fresh air duct. The air inlet 901 of the second duct section is connected to the air outlet 201 of the first duct section. The air outlet 201 of the first duct section is openable and closable.

[0069] In the above example, the first air duct section 2 and the second air duct section 9 work together to achieve the function of the aforementioned fresh air duct, allowing the fresh air duct to take in air through the air inlet of the first air duct section 2 and to exit air through the air outlet of the second air duct section 9.

[0070] To achieve the technical effect of connecting the air inlet 901 of the second air duct section with the air outlet 201 of the first air duct section, in some embodiments, such as Figure 5 As shown, when the aforementioned first filter 1 is annular, the first filter 1 has an inner hole on its inner side. The inner hole of the first filter 1 is opposite to the air inlet 901 of the second air duct section, so that the air inlet 901 of the second air duct section is connected to the air outlet 201 of the first air duct section through the inner hole of the first filter 1.

[0071] In the above example, the air from the first air duct section 2 flows out from the air outlet 201, then passes through the first filter screen 1 and flows into the inner hole of the first filter screen 1, and then enters the air inlet 901 of the second air duct section, thereby achieving the technical effect of connecting the air inlet 901 of the second air duct section with the air outlet 201 of the first air duct section.

[0072] In some implementations, such as Figure 2 and Figure 5 As shown, the aforementioned fresh air module also includes a return air duct 6 and a second filter 4, which filters the air in the return air duct 6. The return air duct 6 has a return air inlet 601 and an air outlet 602. The air outlet 602 of the return air duct is connected to the air inlet 901 of the second duct section 9 to allow return air to pass through the second duct section 9. The return air inlet 601 is openable and closable. The aforementioned fresh air module has a return air mode, in which the return air inlet 601 is open and the air outlet 201 of the first duct section is closed.

[0073] In the above example, in return air mode, the return air vent 601 opens, allowing indoor air to enter the return air duct 6 through the return air vent 601 and be filtered by the second filter 4. The air from the return air duct 6 then flows into the air inlet 901 of the second duct section. Since the air inlet 901 of the second duct section is connected to the air outlet 201 of the first duct section, and the air outlet 201 of the first duct section is closed at this time, it prevents the air from the return air duct 6 from flowing into the first duct section 2 after entering the second duct section 9. This ensures that the air flowing into the second duct section 9 can only flow out of the room through the air outlet of the second duct section 9, thus achieving internal air circulation within the room. In actual use, when outdoor pollution is high, the fresh air module can achieve internal air circulation of the indoor air conditioning system through the return air mode, purifying the indoor air.

[0074] To achieve the technical effect of connecting the air inlet 901 of the aforementioned second air duct section with the air outlet 602 of the return air duct, in some embodiments, such as... Figure 2 As shown, the aforementioned second filter 4 covers the air outlet 602 of the return air duct to filter the air from the return air duct 6. Wherein, as... Figure 5 As shown, the second filter 4 can be annular to form an inner hole on its inner side. The inner hole of the second filter 4 is opposite to the air inlet 901 of the second air duct section, so that the air inlet 901 of the second air duct section is connected to the air outlet 602 of the return air duct through the inner hole of the second filter 4.

[0075] In the above example, the air from the return air duct 6 flows out from the air outlet 602, then passes through the second filter screen 4 and flows into the inner hole of the second filter screen 4, and then enters the air inlet 901 of the second air duct section, thereby achieving the technical effect of connecting the air inlet 901 of the second air duct section with the air outlet 602 of the return air duct.

[0076] In some implementations, such as Figure 1 As shown, the aforementioned fresh air duct also has a third duct section. The aforementioned second duct section 9 has an air outlet 103, through which the second duct section 9 is connected to the interior of the first duct section 2. The air inlet 901 of the second duct section is connected to the indoor environment through the third duct section. The aforementioned fresh air outlet 102, air outlet 103, and third duct section can all be opened and closed.

[0077] The fresh air module has both an air supply mode and an exhaust mode. In air supply mode, the air outlet 201 of the first air duct section is open, the third air duct section is closed, the air inlet 103 is closed, and the fresh air outlet 102 is open. At this time, air flows in from the air inlet of the first air duct section 2, and the air from the first air duct section 2 flows in from the air outlet 201 of the first air duct section. Then, the air flows into the second air duct section 9. Since the third air duct section is closed, the air from the second air duct section 9 flows out from the third air duct section; the air from the second air duct section 9 flows out from the fresh air outlet 102. In this air supply mode, the fresh air module can introduce fresh outdoor air into the room.

[0078] In exhaust mode, the air outlet 201 of the first air duct section is closed, the third air duct section is open, the air inlet 103 is open, and the fresh air outlet 102 is closed. At this time, indoor air flows in through the third air duct section and then into the second air duct section 9. Because the air outlet 201 of the first air duct section is closed, air from the third air duct section is prevented from flowing into the first air duct section 2. Air from the second air duct section 9 flows into the first air duct section 2 through the air inlet 103 and then exits to the outside through the air inlet of the first air duct section 2. In this exhaust mode, the fresh air module can draw indoor air to the outside.

[0079] In the example above, the air inlet of the first duct section 2, namely the fresh air inlet 101, has a dual function: on the one hand, it acts as an air inlet to introduce fresh air into the room in the air supply mode; on the other hand, it acts as an air outlet to exhaust indoor air to the outside in the air exhaust mode. When the air inlet of the first duct section 2 is connected to a duct, single-pipe air supply and exhaust can be achieved, eliminating the need for two separate ducts for air intake and exhaust, thus facilitating user installation.

[0080] In addition, in exhaust mode, the fresh air module directly draws in air through the third air duct section, which increases the air volume during intake. Furthermore, the exhaust process does not require passing through the filter, which also helps to extend the filter's lifespan.

[0081] To achieve the aforementioned effect of connecting the second air duct section 9 with the interior of the first air duct section 2 via the air inlet 103, in some embodiments, such as... Figure 3 As shown, the first air duct section 2 and the second air duct section 9 can share the same sidewall. The aforementioned air inlet 103 is disposed on this common sidewall 91, which is sometimes referred to as an air duct partition. When the air inlet 103 is opened, the second air duct section 9 can be connected to the interior of the first air duct section 2 through the air inlet 103. The air inlet 103 can be opposite to the air inlet, i.e., the fresh air inlet 101, of the first air duct section 2.

[0082] The fresh air module also includes a return air duct 6 and a second filter 4 for filtering the air in the return air duct 6. The return air duct 6 has an air outlet and an openable return air inlet 601. The air outlet 602 of the return air duct is connected to the air inlet 901 of the second air duct section so that return air can be carried out through the second air duct section 9. The fresh air module has a return air mode. In the return air mode, the return air inlet 601 is open and the air outlet 201 of the first air duct section is closed. In the return air mode, the third air duct section mentioned above is closed, and the air passage 103 is closed, while the fresh air outlet 102 is open. This can prevent the air in the return air duct 6 from flowing out of the third air duct section and the air passage 103, and allow the air in the return air duct 6 to flow into the second air duct section 9 and then into the room from the fresh air outlet 102 to achieve return air. In both the air supply mode and the exhaust mode, the aforementioned return air vent 601 is closed to prevent the return air vent 601 from interfering with the operation of the air supply mode and the exhaust mode.

[0083] It should be noted that the internal space of the first air duct section 2 and the return air duct 6 can be made larger to increase the air volume.

[0084] In some embodiments, the aforementioned fresh air module may further include a fan 13, the internal air duct of which forms part of the aforementioned second air duct section 9, and the air inlet of the fan 13 serves as the air inlet 901 of the aforementioned second air duct section. In a specific application example, the aforementioned fan 13 may be a centrifugal fan. Specifically, in the exhaust mode, the fan 13 drives airflow to enter from the air inlet of the first air duct section 2, then flows into the air inlet 901 of the second air duct section, and then exits from the fresh air outlet 102. In the exhaust mode, the fan 13 drives airflow to enter from the third air duct section, then flows into the air inlet 901 of the second air duct section, then flows into the first air duct section 2 from the air outlet 103, and then exits from the air inlet of the first air duct section 2. In the return air mode, the fan 13 drives airflow to enter from the return air outlet 601, then flows into the air inlet 901 of the second air duct section, and then exits from the fresh air outlet 102.

[0085] In the example above, by setting the fan 13, the fan 13 and the opening and closing of each air outlet can make the airflow flow according to the preset path, so as to realize the functions of the fresh air module's air supply mode, exhaust mode and return air mode.

[0086] In some embodiments, when the fresh air module further includes a return air duct 6 and a second filter 4, and the return air duct 6 has a return air inlet 601, the second filter 4 covers the air outlet 602 of the return air duct to filter the air in the return air duct 6; and the second filter 4 is annular with an inner hole formed on its inner side, the inner hole of the second filter 4 being opposite to the air inlet 901 of the second air duct section, so that the air inlet 901 of the second air duct section is connected to the air outlet 602 of the return air duct through the inner hole of the second filter 4; and the first filter 1 is annular with an inner hole formed on its inner side; the inner hole of the first filter 1 is opposite to the air inlet 901 of the second air duct section, so that the air inlet 901 of the second air duct section is connected to the air outlet 201 of the first air duct section through the inner hole of the first filter 1, such as Figure 5 As shown, the fresh air module has a housing 100. Inside the housing 100, there are three mounting layers: a first mounting layer 20a, a second mounting layer 20b, and a third mounting layer 20c, separated by a partition plate. The second mounting layer 20b is located between the first mounting layer 20a and the third mounting layer 20c. A fan 13 is located on the first mounting layer 20a, a first filter 1 is located on the second mounting layer 20b, and a second filter 4 is located on the third mounting layer 20c. The inner hole of the second filter 4 is aligned with the inner hole of the first filter 1, so that the inner hole of the second filter 4 is aligned with the air inlet 901 of the second air duct section through the inner hole of the first filter 1. In the above example, by installing the fan 13, the first filter 1, and the second filter 4 in layers, it is beneficial to reduce the overall length and width dimensions of the fresh air module, making the structure of the fresh air module more compact.

[0087] It should be noted that the aforementioned first air duct section 2, second air duct section 9, third air duct section and return air duct 6 are all formed inside the casing 100.

[0088] In a specific application example, when the fan 13 is a centrifugal fan, the cover plate on one side of the centrifugal fan can serve as a partition between the first mounting layer 20a and the second mounting layer 20b. The second mounting layer 20b and the third mounting layer 20c can be separated by a connecting plate 7. The first guide rail 18 can be mounted on the cover plate on one side of the centrifugal fan 13 to guide the bottom of the first filter screen 1. The second guide rail 19 can be mounted on the bracket 8 of the third mounting layer 20c to guide the top of the first filter screen 1. The fresh air inlet 101, fresh air outlet 102, and air passage 103 can all be located in the first mounting layer 20a. The return air duct 6 has an arc-shaped duct section 61 located in the third mounting layer 20c, and the outlet 602 of the return air duct is located on the arc-shaped duct section 61.

[0089] To achieve the technical effect of connecting the air inlets 901 of the third air duct section and the second air duct section, in some embodiments, such as... Figure 1 As shown, the aforementioned fresh air module may further include a first cover plate 10, which covers the side of the inner hole of the second filter 4 facing away from the first filter 1. The aforementioned third air duct section includes an air outlet 10a disposed on the first cover plate 10, and the third air duct section is connected to the air inlet 901 of the second air duct section through the air outlet 10a. The air outlet 10a is opposite to the inner hole of the second filter 4, so that the air outlet 10a sequentially passes through the inner hole of the second filter 4 and the inner hole of the first filter 1 to connect with the air inlet 901 of the second air duct section.

[0090] In the above example, when the third air duct section is opened, the air from the third air duct section flows into the air inlet 901 of the second air duct section through the inner holes of the second filter screen 4 and the first filter screen 1 in sequence, thereby achieving the technical effect of connecting the air inlet 901 of the third air duct section and the second air duct section.

[0091] like Figure 5 As shown, the side of the aforementioned fresh air module away from the first cover plate 10 may have a second cover plate 11, which constitutes the end shell of the side of the fresh air module away from the first cover plate 10, so as to provide housing protection for the fresh air module.

[0092] To achieve the technical effect that the air outlet 201 of the first air duct section can be opened and closed, in some embodiments, such as Figure 2As shown, the air outlet 201 of the aforementioned first air duct section is located on the second mounting layer 20b. The aforementioned fresh air module also includes a second drive mechanism and a baffle 5. The second drive mechanism is used to drive the baffle 5 to move between the second mounting layer 20b and the third mounting layer 20c. Specifically, the baffle 5 is used to cover the air outlet 201 of the first air duct section when it moves to the second mounting layer 20b (e.g., ...). Figure 9 As shown), the baffle 5 is also used to open the air outlet 201 of the first air duct section when it moves to the third mounting layer 20c (as shown). Figure 8 (As shown).

[0093] In the above example, by moving the baffle 5 between the second mounting layer 20b and the third mounting layer 20c, the baffle 5 can open and close the air outlet 201 of the first air duct section without affecting the layered structure design of the fresh air module.

[0094] In some implementations, such as Figure 7 As shown, the aforementioned second driving mechanism may include a screw and nut mechanism to drive the baffle 5 to move between the second mounting layer 20b and the third mounting layer 20c. Specifically, the second driving mechanism includes a drive motor 3 and a screw 31. A nut seat 32 is sleeved on the screw 31, and the nut seat 32 is threadedly connected to the screw 31. The nut seat 32 is connected to the baffle 5, for example, the two can be fixedly connected. The fresh air module also has a guide and limiting mechanism, which is used to limit and guide the movement of the baffle 5, so that the baffle 5 moves along the centerline direction of the screw 31. Among them, the drive motor 3 is used to drive the screw 31 to rotate, the screw 31 drives the nut seat 32 to move, and the nut seat 32 drives the baffle 5 to move along the centerline direction of the screw 31.

[0095] like Figure 10 As shown, the aforementioned guiding and limiting mechanism may include a guide groove 501 disposed in the third mounting layer 20c to limit and guide the movement of the baffle 5. In a specific application example, the aforementioned baffle 5 may be arc-shaped, and the corresponding guide groove 501 may also be arc-shaped. When the baffle 5 moves to the second mounting layer 20b, the baffle 5 covers the air outlet 201 of the first air duct section to close the air outlet 201 of the first air duct section. Specifically, when the baffle 5 moves to the second mounting layer 20b, it seals against the side wall of the air outlet 201 of the first air duct section to improve the closing effect of the air outlet 201 of the first air duct section.

[0096] In the initial position, the baffle 5 is completely located in the guide groove 501 of the third mounting layer 20c. As the second drive mechanism drives it, the baffle 5 slowly descends and moves towards the second mounting layer 20b, finally completely blocking the air outlet 201 of the first air duct section, thereby disconnecting the connection between the air outlet 201 of the first air duct section and the air inlet 901 of the second air duct section.

[0097] It should be noted that the height of the baffle 5 needs to be higher than the height of the first filter screen 1. The air outlet 201 of the first air duct section has a top wall, a bottom wall, and a first side wall 15 and a second side wall 16 located between the top wall and the bottom wall. The first side wall 15 and the second side wall 16 can sometimes be referred to as air duct partitions. When the baffle 5 moves to the second mounting layer 20b, the bottom of the baffle 5 abuts against the bottom wall of the air outlet 201 of the first air duct section, the left and right sides of the baffle 5 are respectively sealed to the first side wall 15 and the second side wall 16, and the upper part of the baffle 5 is sealed to the top wall of the air outlet 201 of the first air duct section.

[0098] In some implementations, such as Figure 1-4 As shown, the aforementioned fresh air outlet 102 may include a first fresh air outlet 102a and a second fresh air outlet 102b. The first fresh air outlet 102a is used to directly connect to the indoor environment, and the second fresh air outlet 102b is used to connect to the air duct 17 of the air conditioning system, so as to connect to the indoor environment through the air duct 17 of the air conditioning system. In a specific application example, the air conditioning system can be a ducted air conditioner. Both the first fresh air outlet 102a and the second fresh air outlet 102b can be opened and closed. When both the first fresh air outlet 102a and the second fresh air outlet 102b are closed, the fresh air outlet 102 is closed; and when at least one of them is open, the fresh air outlet 102 is open.

[0099] In the above example, when the indoor and outdoor temperature difference is small, the fresh air duct can directly introduce fresh air into the room through the first fresh air outlet 102a. This operating mode can be called direct exhaust mode, which can achieve a large fresh air volume. When the indoor and outdoor temperature difference is large, such as exceeding 5 degrees Celsius, the fresh air duct can introduce fresh air into the air duct 17 of the air conditioning system through the second fresh air outlet 102b, mix it with the air from the air conditioning system, and then introduce it into the room. This operating mode can be called mixed exhaust mode, which can ensure a uniform indoor temperature distribution.

[0100] The aforementioned second fresh air outlet 102b can be located upstream of the heat exchanger 171 in the air conditioning system, so that the air from the second fresh air outlet 102b can be heated by the heat exchanger 171 before flowing into the room, thus further ensuring a uniform distribution of indoor temperature.

[0101] It should be noted that the aforementioned first fresh air outlet 102a, second fresh air outlet 102b, return air inlet 601, third air duct section and air outlet 103 can each be opened and closed by means of a damper.

[0102] In some embodiments, the present invention also provides an air conditioner that may include a fresh air module as described above. Because the air conditioner uses the aforementioned fresh air module, by designing two or more filtration areas 1b on the first filter 1, the first filter 1 filters the air from the fresh air duct through a single filtration area 1b each time. When the service life of the filtration area 1b expires, the first filter 1 can be driven to move, sending another filtration area 1b to the fresh air duct, allowing each filtration area 1b to filter the air from the fresh air duct in turn. This extends the overall service life of the first filter 1, reduces the replacement frequency of the first filter 1, and optimizes the user's actual experience.

[0103] It will be readily understood by those skilled in the art that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0104] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A fresh air module, characterized by: The fresh air duct, the first filter screen (1) and the first driving mechanism are included. The fresh air duct has a fresh air inlet (101) and a fresh air outlet (102). The first filter screen (1) has two or more filter areas (1b). The first driving mechanism is used to drive the first filter screen (1) to move, so that each filter area (1b) is sequentially sent to the fresh air duct, and the first filter screen (1) can filter the air of the fresh air duct through each filter area (1b) in turn.

2. The fresh air module according to claim 1, wherein: The first filter screen (1) is annular, and each filter area (1b) is arranged along the circumference of the first filter screen (1) in sequence; and the first filter screen (1) is used to be driven by the first driving mechanism to rotate around its center line, so that each filter area (1b) is sequentially sent to the fresh air duct.

3. The fresh air module according to claim 2, wherein: The first driving mechanism includes a power device and a gear (14), and a transmission tooth (1a) is arranged on the first filter screen (1) along the circumference; the gear (14) is engaged with the transmission tooth (1a); and the first driving mechanism drives the gear (14) to rotate through the power device, so that the gear (14) drives the first filter screen (1) to rotate around its center line through the transmission tooth (1a).

4. The fresh air module according to any one of claims 1-3, wherein: The fresh air duct includes a first air duct section (2), and the first air duct section (2) has an air inlet and an air outlet (201); the air inlet of the first air duct section (2) serves as the fresh air inlet (101) of the fresh air duct; Wherein, the filter area (1b) of the first filter screen (1) sent to the fresh air duct is a first filter area, and the first filter screen (1) covers the air outlet (201) of the first air duct section through the first filter area, so as to filter the air of the fresh air duct.

5. The fresh air module according to claim 4, wherein: The fresh air duct further includes a second air duct section (9), and the second air duct section (9) has an air inlet (901) and an air outlet; the air outlet of the second air duct section (9) serves as the fresh air outlet (102) of the fresh air duct; the air inlet (901) of the second air duct section communicates with the air outlet (201) of the first air duct section; and the air outlet (201) of the first air duct section is openable and closable.

6. The fresh air module according to claim 5, wherein: The fresh air module further includes a return air duct (6) and a second filter screen (4), and the second filter screen (4) is used to filter the air of the return air duct (6). The return air duct (6) has an air outlet (602) and an openable return air outlet (601), the air outlet (602) of the return air duct communicates with the air inlet (901) of the second air duct section to return air through the second air duct section (9); wherein the fresh air module has a return air mode, in the return air mode, the return air outlet (601) is opened, and the air outlet (201) of the first air duct section is closed.

7. The fresh air module of claim 6, wherein: The second filter screen (4) covers the air outlet (602) of the return air duct to filter the air of the return air duct (6); Wherein, the second filter screen (4) is annular to form an inner hole on the inner side, the inner hole of the second filter screen (4) is opposite to the air inlet (901) of the second air duct section, so that the air inlet (901) of the second air duct section communicates with the air outlet (602) of the return air duct through the inner hole of the second filter screen (4).

8. The fresh air module of any one of claims 5-7, wherein: When the first filter screen (1) is annular, the first filter screen (1) forms an inner hole on the inner side; the inner hole of the first filter screen (1) is opposite to the air inlet (901) of the second air duct section, so that the air inlet (901) of the second air duct section communicates with the air outlet (201) of the first air duct section through the inner hole of the first filter screen (1).

9. Fresh air module according to any of claims 5-7, characterized in that: The fresh air duct also has a third air duct section, the second air duct section (9) has a through air opening (103), the second air duct section (9) communicates with the inside of the first air duct section (2) through the through air opening (103); the air inlet (901) of the second air duct section communicates with the room through the third air duct section; the fresh air outlet (102), the through air opening (103) and the third air duct section are all openable; Wherein, the fresh air module has an air outlet mode and an exhaust mode, in the air outlet mode, the air outlet (201) of the first air duct section is opened, the third air duct section is closed, the through air opening (103) is closed, and the fresh air outlet (102) is opened; in the exhaust mode, the air outlet (201) of the first air duct section is closed, the third air duct section is opened, the through air opening (103) is opened, and the fresh air outlet (102) is closed.

10. Fresh air module according to claim 9, characterized in that: When the fresh air module further comprises a return air duct (6) and a second filter screen (4) for filtering the air of the return air duct (6), and the return air duct (6) has an air outlet and a closable return air outlet (601), the air outlet (602) of the return air duct communicates with the air inlet (901) of the second air duct section to return air through the second air duct section (9); and the fresh air module has a return air mode, in which the return air outlet (601) is opened, the air outlet (201) of the first air duct section is closed, in the return air mode, the third air duct section is closed, the air outlet (103) is closed, and the fresh air outlet (102) is opened; in the air outlet mode and the exhaust mode, the return air outlet (601) is closed.

11. The fresh air module of claim 10, wherein: The fresh air module further comprises a fan (13), and an air duct inside the fan (13) constitutes part of the second air duct section (9), and an air inlet of the fan (13) serves as the air inlet (901) of the second air duct section; Wherein, in the air outlet mode, the fan (13) drives the airflow to enter from the air inlet of the first air duct section (2), then flows into the air inlet (901) of the second air duct section, and then flows out from the fresh air outlet (102); in the exhaust mode, the fan (13) drives the airflow to enter from the third air duct section, then flows into the air inlet (901) of the second air duct section, then flows into the first air duct section (2) from the air outlet (103), and then flows out from the air inlet of the first air duct section (2); in the return air mode, the fan (13) drives the airflow to enter from the return air outlet (601), then flows into the air inlet (901) of the second air duct section, and then flows out from the fresh air outlet (102).

12. Fresh air module according to claim 10 or 11, characterized in that: When the fresh air module further comprises a return air duct (6) and a second filter screen (4), and the return air duct (6) has a return air outlet (601), the second filter screen (4) covers an air outlet (602) of the return air duct to filter the air of the return air duct (6); and the second filter screen (4) is annular to form an inner hole on the inside, the inner hole of the second filter screen (4) is opposite to the air inlet (901) of the second air duct section, so that the air inlet (901) of the second air duct section communicates with the air outlet (602) of the return air duct through the inner hole of the second filter screen (4); and the first filter screen (1) is annular to form an inner hole on the inside; the inner hole of the first filter screen (1) is opposite to the air inlet (901) of the second air duct section, so that the air inlet (901) of the second air duct section communicates with the air outlet (201) of the first air duct section through the inner hole of the first filter screen (1) when The fresh air module has a shell (100), an inside of the shell (100) has a first installation layer (20a), a second installation layer (20b) and a third installation layer (20c) separated by a partition plate, the second installation layer (20b) is located between the first installation layer (20a) and the third installation layer (20c); wherein the fan (13) is located in the first installation layer (20a), the first filter screen (1) is located in the second installation layer (20b), the second filter screen (4) is located in the third installation layer (20c), and the inner hole of the second filter screen (4) is opposite to the inner hole of the first filter screen (1) so that the inner hole of the second filter screen (4) is opposite to the air inlet (901) of the second air duct section through the inner hole of the first filter screen (1).

13. Fresh air module according to claim 12, characterized in that: The shell (100) has a first cover plate (10) covering the side of the inner hole of the second filter screen (4) away from the first filter screen (1), the third air duct section includes a walking air hole (10a) provided on the first cover plate (10) to communicate with the air inlet (901) of the second air duct section through the walking air hole (10a); wherein the walking air hole (10a) is opposite to the inner hole of the second filter screen (4) so that the walking air hole (10a) communicates with the air inlet (901) of the second air duct section through the inner hole of the second filter screen (4) and the inner hole of the first filter screen (1) in sequence.

14. Fresh air module according to claim 12, characterized in that: The air outlet (201) of the first air duct section is located in the second installation layer (20b), the fresh air module further includes a second driving mechanism and a baffle (5), the second driving mechanism is used to drive the baffle (5) to move between the second installation layer (20b) and the third installation layer (20c); wherein the baffle (5) is used to cover the air outlet (201) of the first air duct section when moving to the second installation layer (20b), and open the air outlet (201) of the first air duct section when moving to the third installation layer (20c).

15. Fresh air module according to any of claims 1-3, 5-7, 10-11, 13-14, characterized in that: The fresh air outlet (102) includes a first fresh air outlet (102a) and a second fresh air outlet (102b), the first fresh air outlet (102a) is used to directly communicate with the indoor, and the second fresh air outlet (102b) is used to communicate with the air duct (17) of the air conditioning system to communicate with the indoor through the air duct (17) of the air conditioning system; wherein the first fresh air outlet (102a) and the second fresh air outlet (102b) are both openable and closable; both the first fresh air outlet (102a) and the second fresh air outlet (102b) are used to close the fresh air outlet (102) when both are closed, and the fresh air outlet (102) is opened when at least one of the two is opened.

16. An air conditioner characterized by comprising: The fresh air module includes any one of claims 1-15.

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