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 shell provided with a fresh air inlet; the volute assembly is arranged in the shell, and an air inlet is formed in one axial end of the volute assembly; the annular filter screen is installed on the volute assembly and arranged in the circumferential direction of the air inlet. In the flowing direction of fresh air, the annular filter screen is located between the fresh air inlet and the air inlet, the fresh air inlet is located on the radial outer side of the annular filter screen, and the fresh air inlet and the annular filter screen are arranged at intervals. The shape of the filter screen and the position relation between the filter screen and the fresh air inlet are improved, the filter screen is designed to be the annular filter screen, the fresh air inlet is formed in the radial outer side of the annular filter screen, and the fresh air inlet and the annular filter screen are arranged at intervals, so that the annular filter screen does not need to be matched with the fresh air inlet in shape and size, and the filter screen is convenient to use. The air passing area of the filter screen can be obviously larger than the area of the fresh air inlet, the air passing amount of the filter screen is greatly increased, air resistance in the fresh air module can be reduced, and therefore the fresh air exchange amount can be increased.

Description

Technical Field

[0001] This application relates to, but is not limited to, the technical field of air handling equipment, and specifically refers to a fresh air module and an air conditioner. Background Art

[0002] In the related art, an air conditioner is provided with a fresh air module, and a filter screen is installed in the fresh air module for fresh air filtration. The filter screen is installed at the fresh air inlet and is adapted to the size of the fresh air inlet. This structure has a large air resistance, resulting in a small fresh air replacement volume. Summary of the Utility Model

[0003] The technical problem to be solved by this application is to provide a fresh air module and an air conditioner, which are beneficial to reducing the internal air resistance of the fresh air module and increasing the fresh air replacement volume.

[0004] An embodiment of this application provides a fresh air module, including: a housing, the housing is provided with a fresh air inlet; a volute assembly, arranged in the housing, and an air inlet is provided at one axial end of the volute assembly; and an annular filter screen, installed on the volute assembly and arranged along the circumference of the air inlet; along the flow direction of the fresh air, the annular filter screen is located between the fresh air inlet and the air inlet, the fresh air inlet is located radially outside the annular filter screen and is spaced from the annular filter screen.

[0005] For the fresh air module provided by the embodiment of this application, the shape of the filter screen and the positional relationship between the filter screen and the fresh air inlet are improved. By designing the filter screen into an annular filter screen, and setting the fresh air inlet radially outside the annular filter screen and spaced from the annular filter screen, in this way, the annular filter screen does not need to be adapted to the shape and size of the fresh air inlet, and the air passing area of the filter screen can be significantly larger than the area of the fresh air inlet, greatly increasing the air passing volume of the filter screen, which is beneficial to improving the fresh air replacement volume. During use, when fresh air enters the housing through the fresh air inlet, it will not be directly blocked by the filter screen, but can flow along the circumference of the annular filter screen, and then can pass through the annular filter screen from each part of the annular filter screen into the air inlet of the volute assembly. This is equivalent to increasing the area of the fresh air inlet in disguise, which is beneficial to reducing the internal air resistance of the fresh air module, and thus beneficial to improving the fresh air replacement volume.

[0006] Based on the above technical solutions, the following improvements can be made to this application.

[0007] In an exemplary embodiment, the volute assembly includes a volute and a guide ring connected to the volute. An installation opening is provided at one axial end of the volute. The guide ring is sleeved at the installation opening and defines an air inlet communicated with the installation opening. The housing includes a side enclosure plate and a cover plate connected to the side enclosure plate. The cover plate is spaced apart from the air inlet relatively. The fresh air inlet is provided on the side enclosure plate. The annular filter screen is clamped between the guide ring and the cover plate.

[0008] In an exemplary embodiment, the cover plate and the guide ring press the annular filter screen to seal the two axial ends of the annular filter screen.

[0009] In an exemplary embodiment, the cover plate is provided with an exhaust air inlet which is spaced apart from the air inlet relatively. The side enclosure plate is further provided with a fresh air outlet. The volute is provided with an openable and closable switching port and an openable and closable exhaust air outlet. The fresh air inlet is configured to be communicated with the air inlet through the switching port. The fresh air inlet is configured to be communicated with one of the switching port and the exhaust air outlet selectively to switch the air flow direction of the fresh air inlet. Based on the communication between the fresh air inlet and the switching port, the fresh air inlet, the switching port, the air inlet, and the fresh air outlet are communicated in sequence to form a fresh air duct. Based on the communication between the fresh air inlet and the exhaust air outlet, the exhaust air inlet, the air inlet, the exhaust air outlet, and the fresh air inlet are communicated in sequence to form an exhaust air duct.

[0010] In an exemplary embodiment, an air passing space communicated with the fresh air inlet is provided in the housing, and the air passing space extends along the circumferential direction of the annular filter screen.

[0011] In an exemplary embodiment, the inner diameter of the annular filter screen is larger than the diameter of the air inlet.

[0012] In an exemplary embodiment, the volute assembly is provided with a limiting portion configured to limit the annular filter screen from moving axially.

[0013] In an exemplary embodiment, the limiting portion includes a limiting flange which is sleeved on the inner side of the annular filter screen.

[0014] In an exemplary embodiment, the axial height of the limiting flange is smaller than the axial height of the annular filter screen.

[0015] The embodiment of the present application further provides an air conditioner, including: an air conditioner main body; and a fresh air module as described in any one of the above embodiments, connected to the air conditioner main body. Description of the Drawings

[0016] Figure 1Schematic diagram of the bottom view structure of the air duct machine provided by some embodiments of the present application;

[0017] Figure 2 For Figure 1 Schematic diagram of the sectional structure in the A-A direction in;

[0018] Figure 3 For Figure 1 Schematic diagram of the partial three-dimensional structure of the air duct machine shown, with some covers of the fresh air module omitted;

[0019] Figure 4 For Figure 3 Schematic diagram of the bottom view structure of the air duct machine shown;

[0020] Figure 5 Schematic diagram of the partial three-dimensional structure of the fresh air module provided by some embodiments of the present application;

[0021] Figure 6 For Figure 5 Schematic diagram of the bottom view of the structure shown;

[0022] Figure 7 For Figure 6 Schematic diagram of the sectional structure in the B-B direction in;

[0023] Figure 8 Schematic diagram of the three-dimensional structure of the flow guiding ring provided by some embodiments of the present application;

[0024] Figure 9 For Figure 8 Schematic diagram of the bottom view structure of the flow guiding ring shown;

[0025] Figure 10 For Figure 9 Schematic diagram of the sectional structure in the C-C direction in.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1 housing, 11 side enclosing plates, 111 fresh air inlets, 112 fresh air outlets, 12 covers, 121 exhaust inlets, 13 air passing spaces;

[0028] 2 volute assemblies, 21 volutes, 211 volute bodies, 2111 installation openings, 2112 first side plates, 2113 second side plates, 2114 switching openings, 2115 exhaust outlets, 2116 first ventilation openings, 2117 second ventilation openings, 2118 end plates, 22 flow guiding rings, 221 air inlets, 222 limiting flanges, 223 flow guiding plates;

[0029] 3 annular filters;

[0030] 100 fresh air modules, 200 air conditioner main bodies. Detailed implementation manners

[0031] The principles and features of the present application will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not intended to limit the scope of the present application.

[0032] As Figure 3 、 Figure 4 and Figure 5 shown, an embodiment of the present application provides a fresh air module 100, including: a housing 1, a volute assembly 2, and an annular filter 3.

[0033] Among them, as Figure 3 shown, the housing 1 is provided with a fresh air inlet 111. The volute assembly 2 is arranged inside the housing 1, and an air inlet 221 is provided at one axial end of the volute assembly 2.

[0034] As Figure 3 、 Figure 4 and Figure 5 shown, the annular filter 3 is installed on the volute assembly 2 and arranged along the circumference of the air inlet 221. Along the flow direction of the fresh air, the annular filter 3 is located between the fresh air inlet 111 and the air inlet 221.

[0035] The fresh air inlet 111 is located radially outside the annular filter 3 and is spaced apart from the annular filter 3.

[0036] In the fresh air module 100 provided by the embodiment of the present application, the shape of the filter and the positional relationship between the filter and the fresh air inlet 111 are improved. By designing the filter as the annular filter 3 and arranging the fresh air inlet 111 radially outside the annular filter 3 and spaced apart from the annular filter 3, in this way, the annular filter 3 does not need to be adapted to the shape and size of the fresh air inlet 111, and the air passing area of the filter can be significantly larger than the area of the fresh air inlet 111, greatly increasing the air passing volume of the filter, thereby being beneficial to improving the fresh air ventilation volume. During use, when the fresh air enters the housing 1 through the fresh air inlet 111, it will not be directly blocked by the filter, but can flow along the circumference of the annular filter 3, and then can pass through the annular filter 3 from various parts of the annular filter 3 and enter the air inlet 221 of the volute assembly 2, which is equivalent to increasing the area of the fresh air inlet 111 in disguise, being beneficial to reducing the air resistance inside the fresh air module 100, and thus being beneficial to improving the fresh air ventilation volume.

[0037] In some exemplary embodiments, the inner diameter of the annular filter 3 is greater than the diameter of the air inlet 221, as Figure 2 and Figure 7 shown.

[0038] Compared with the inner diameter of the annular filter 3 being less than or equal to the diameter of the air inlet 221, this solution is beneficial to increasing the air passing area of the annular filter 3, thereby being beneficial to increasing the air passing volume of the annular filter 3 and being beneficial to further improving the fresh air ventilation volume.

[0039] The annular filter screen 3 can be, but is not limited to, a HEPA filter screen.

[0040] In some exemplary embodiments, as Figure 3 shown, an air passage space 13 communicating with the fresh air inlet 111 is provided in the housing 1, and the air passage space 13 extends along the circumferential direction of the annular filter screen 3. Therefore, the outer circumferential side of the annular filter screen 3 will not be blocked, facilitating the flow of fresh air, enabling air to pass through the entire circumference of the annular filter screen 3, which is beneficial to increasing the air passing capacity of the annular filter screen 3, and thus beneficial to improving the fresh air ventilation volume.

[0041] In some exemplary embodiments, as Figure 3 and Figure 4 shown, the volute assembly 2 includes a volute 21 and a guide ring 22, and the guide ring 22 is connected to the volute 21. As Figures 5 to 7 shown, an installation opening 2111 is provided at one axial end of the volute 21. The guide ring 22 is sleeved at the installation opening 2111 and encloses an air inlet 221 communicating with the installation opening 2111.

[0042] As Figure 1 and Figure 3 shown, the housing 1 includes a side enclosure 11 and a cover plate 12, and the cover plate 12 is connected to the side enclosure 11. The cover plate 12 is disposed at a relative interval with respect to the air inlet 221, and the fresh air inlet 111 is provided on the side enclosure 11. The annular filter screen 3 is clamped between the guide ring 22 and the cover plate 12, as Figure 2 shown.

[0043] Among them, the guide ring 22 can guide the fresh air filtered by the annular filter screen 3. An arc-shaped guide plate 223 can be provided on the inner side of the guide ring 22 to guide the air flow to turn and enter the volute 21. The guide ring 22 and the volute 21 can be connected by means such as snap connection, and the guide ring 22 and the volute 21 can be detachably connected and can rotate relative to the volute 21.

[0044] Of course, the volute assembly 2 may not include the guide ring 22, and a guide structure may be directly provided on the volute 21 to achieve the guiding effect. At this time, the annular filter screen 3 can be clamped between the end plate 2118 of the volute 21 and the cover plate 12.

[0045] In some embodiments, the cover plate 12 and the guide ring 22 press the annular filter screen 3 to seal the two axial ends of the annular filter screen 3.

[0046] In this way, the annular filter screen 3 can be fixed by the pressing force of the cover plate 12 and the diversion ring 22, without the need to separately provide a filter screen support for installing the annular filter screen 3. Moreover, this also seals the axial two ends of the annular filter screen 3, eliminating the need for an additional sealing structure, thereby reducing the number of components of the fresh air module 100, simplifying the assembly process of the fresh air module 100, facilitating the improvement of the assembly efficiency, and ensuring that fresh air can enter the volute 21 only after passing through the annular filter screen 3, thus guaranteeing the fresh air quality.

[0047] In some exemplary embodiments, the volute assembly 2 is provided with a limiting portion configured to limit the movement of the annular filter screen 3. This is conducive to improving the position stability of the annular filter screen 3, and thus is conducive to improving the use reliability of the fresh air module 100.

[0048] For the solution where the volute assembly 2 includes the volute 21 and the diversion ring 22, the limiting portion is provided on the diversion ring 22. For the solution where the volute assembly 2 does not include the diversion ring 22, the limiting portion is provided on the end plate 2118 of the volute 21.

[0049] In some embodiments, the limiting portion includes a limiting flange 222. As shown in Figure 2 , Figure 5 , Figure 7 and Figure 9 , the limiting flange 222 is sleeved on the inner side of the annular filter screen 3. Restricted by the limiting flange 222, the annular filter screen 3 is not prone to deformation or movement, and can be stably fixed around the air inlet 221 under the pressing force of the cover plate 12 and the volute assembly 2.

[0050] In some embodiments, the axial height of the limiting flange 222 is less than the axial height of the annular filter screen 3. This facilitates the annular filter screen 3 to be smoothly sleeved on the limiting flange 222 and also facilitates the quick disassembly of the annular filter screen 3, which is conducive to reducing the disassembly and assembly difficulty of the annular filter screen 3.

[0051] In some embodiments, as shown in Figure 7 and Figure 9 , the inner diameter of the limiting flange 222 is greater than the diameter of the air inlet 221, and then the inner diameter of the annular filter screen 3 is also greater than the diameter of the air inlet 221.

[0052] In some embodiments, the cover plate 12 is provided with an exhaust air inlet 121, as shown in Figure 1 . The exhaust air inlet 121 is disposed at a relative interval with respect to the air inlet 221. The side wall plate 11 is further provided with a fresh air outlet 112, as shown in Figure 3 . The volute 21 is provided with an openable and closable switching port 2114 and an openable and closable exhaust air outlet 2115, as shown in Figure 5 and Figure 7As shown in the figure, the fresh air inlet 111 is configured to be able to communicate with the air inlet 221 through the switching port 2114. The fresh air inlet 111 is configured to be able to communicate with either the switching port 2114 or the exhaust outlet 2115 to switch the air flow direction of the fresh air inlet 111.

[0053] Based on the communication between the fresh air inlet 111 and the switching port 2114, the fresh air inlet 111, the switching port 2114, the air inlet 221, and the fresh air outlet 112 are sequentially communicated to form a fresh air duct.

[0054] Based on the communication between the fresh air inlet 111 and the exhaust outlet 2115, the exhaust air inlet 121, the air inlet 221, the exhaust outlet 2115, and the fresh air inlet 111 are sequentially communicated to form an exhaust air duct.

[0055] In this way, the fresh air module 100 not only has a fresh air duct but also an exhaust air duct. The fresh air duct can be used to discharge outdoor fresh air into the indoor space, and the exhaust air duct can discharge indoor polluted air to the outdoor space, which is beneficial to enrich the functions of the fresh air module 100, so that the fresh air module 100 has both a fresh air mode and an exhaust air mode, and both the fresh air mode and the exhaust air mode are beneficial to improving air quality. In this way, when the air quality is good, the indoor air quality can be improved through the fresh air mode; when the outdoor air quality is poor, the indoor air quality can be improved through the exhaust air mode, which is beneficial to improving the use experience of the air conditioner.

[0056] In some embodiments, as Figure 5 shown, the volute 21 may include a volute main body 211, and a first side plate 2112 and a second side plate 2113 connected to the volute main body 211. The first side plate 2112 may be provided with a first ventilation opening 2116 corresponding to and communicating with the fresh air inlet 111, and the second side plate 2113 may be provided with a second ventilation opening 2117 corresponding to and communicating with the fresh air outlet 112. The exhaust outlet 2115 and the switching port 2114 may be provided between the first side plate 2112 and the volute tongue. The exhaust outlet 2115 may be located between the second ventilation opening 2117 and the switching port 2114. The switching port 2114 may be inclined.

[0057] The fresh air inlet 111 can be controlled to open and close through a first opening and closing component. The fresh air outlet 112 can be controlled to open and close through a second opening and closing component. The switching port 2114 can be controlled to open and close through a third opening and closing component. The exhaust outlet 2115 can be controlled to open and close through a fourth opening and closing component. The exhaust air inlet 121 can be controlled to open and close through a fifth opening and closing component.

[0058] The first opening and closing component may include a first motor and a first valve plate. The first valve plate may be a rotatable valve plate, and the opening and closing of the fresh air inlet 111 are controlled by rotation.

[0059] The second opening and closing component may include a second motor and a second valve plate. The second valve plate may be a rotatable valve plate, and the opening and closing of the fresh air outlet 112 is controlled by rotation.

[0060] The third opening and closing component may include a third motor and a third valve plate. The third valve plate may be a rotatable valve plate, and the opening and closing of the switching port 2114 is controlled by rotation.

[0061] The fourth opening and closing component may include a fourth motor and a fourth valve plate. The fourth valve plate may be a rotatable valve plate, and the opening and closing of the exhaust outlet 2115 is controlled by rotation.

[0062] The fifth opening and closing component may include a fifth motor and a fifth valve plate. The fifth valve plate may be a rotatable valve plate, and the opening and closing of the exhaust inlet 121 is controlled by rotation.

[0063] As Figures 1 to 4 shown, an embodiment of the present application further provides an air conditioner, including an air conditioner main body 200 and the fresh air module 100 according to any one of the above embodiments, and the fresh air module 100 is connected to the air conditioner main body 200.

[0064] The air conditioner provided by the embodiment of the present application includes the fresh air module 100 according to any one of the above embodiments, and thus has all the above beneficial effects, which will not be elaborated here.

[0065] In some embodiments, the air conditioner may be, but is not limited to, a duct machine. The fresh air module 100 may be located on one side in the length direction of the duct machine main body and connected to the duct machine main body.

[0066] Wherein, Figure 2 、 Figure 3 、 Figure 7 and Figure 10 The up and down directions marked are based on the state after the duct machine is installed in the ceiling after leaving the factory. The direction towards the ground is down, and the direction towards the ceiling is up. The flow guide ring 22 is on the top and the annular filter screen 3 is on the bottom. However, during the assembly process before the duct machine leaves the factory, the up and down directions can be changed. For example, the flow guide ring 22 is on the bottom and the annular filter screen 3 is on the top. The annular filter screen 3 is sleeved on the flow guide ring 22, and then the cover plate 12 is covered.

[0067] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

[0068] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0069] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0070] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0071] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0072] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A fresh air module, characterized in that: include: A housing, wherein the housing is provided with a fresh air inlet; A volute assembly is arranged in the housing, and an air inlet is arranged at one axial end of the volute assembly; and An annular filter is installed on the volute assembly and is arranged along the circumference of the air inlet; along the flow direction of the fresh air, the annular filter is located between the fresh air inlet and the air inlet, and the fresh air inlet is located radially outside the annular filter and is spaced apart from the annular filter.

2. The fresh air module according to claim 1, characterized in that: The volute assembly includes a volute and a guide ring connected to the volute, and an installation opening is provided at one axial end of the volute; the guide ring is sleeved at the installation opening and surrounds the air inlet communicated with the installation opening; The shell includes a side panel and a cover plate connected to the side panel, the cover plate and the air inlet are arranged relatively spaced apart, and the fresh air inlet is arranged on the side panel; the annular filter is clamped between the guide ring and the cover plate.

3. The fresh air module according to claim 2, characterized in that: The cover plate and the guide ring press the annular filter screen to seal the axial ends of the annular filter screen.

4. The fresh air module according to claim 2, characterized in that: The cover plate is provided with an exhaust inlet, and the exhaust inlet is arranged at a relative interval with the air inlet. The side panel is also provided with a fresh air outlet. The volute is provided with an openable and closable switching port and an openable and closable exhaust outlet. The fresh air inlet is arranged to be connected with the air inlet through the switching port; the fresh air inlet is arranged to be connected with either the switching port or the exhaust outlet to switch the airflow direction of the fresh air inlet; Based on the communication between the fresh air inlet and the switching port, the fresh air inlet, the switching port, the air inlet, and the fresh air outlet are sequentially connected to form a fresh air duct; Based on the communication between the fresh air inlet and the exhaust outlet, the exhaust air inlet, the air inlet, the exhaust air outlet and the fresh air inlet are sequentially connected to form an exhaust air duct.

5. The fresh air module according to any one of claims 1 to 4, characterized in that: An air passing space communicating with the fresh air inlet is provided in the shell, and the air passing space extends along the circumference of the annular filter.

6. The fresh air module according to any one of claims 1 to 4, characterized in that: The inner diameter of the annular filter is greater than the diameter of the air inlet.

7. The fresh air module according to any one of claims 1 to 4, characterized in that: The volute assembly is provided with a limiting portion, and the limiting portion is configured to limit the movement of the annular filter.

8. The fresh air module according to claim 7, characterized in that: The limiting portion includes a limiting flange, and the limiting flange is sleeved on the inner side of the annular filter screen.

9. The fresh air module according to claim 8, characterized in that: The axial height of the limiting flange is smaller than the axial height of the annular filter screen.

10. An air conditioner, characterized in that: include: Air conditioner body; and The fresh air module according to any one of claims 1 to 9, connected to the air conditioner main body.

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