Air exchange valve, fresh air module and fresh air conditioner

Abstract

The utility model provides an air exchange valve, a fresh air module and a fresh air conditioner, and relates to the technical field of household appliances. The fresh air module is provided with an air inlet, the air exchange valve comprises a first valve plate and a second valve plate, and the first valve plate and the second valve plate are obliquely arranged at an included angle; the air inlets comprise the first air inlet and the second air inlet, and the air exchange valve rotatably enables the first valve plate to seal the first air inlet and enables the second valve plate to open the second air inlet, or enables the second valve plate to seal the second air inlet and enables the first valve plate to open the first air inlet. According to the air exchange valve, the two valve plates forming the included angle are arranged on the air exchange valve, when the fresh air module comprises the two air inlets, the valve plates correspond to the air inlets in a one-to-one mode, the first valve plate can be matched with the shape of the first air inlet, the second valve plate can be matched with the shape of the second air inlet, the shape of the first air inlet and the shape of the second air inlet do not need to be consistent, and the air exchange valve is convenient to use. The number of parts can be reduced, and the sealing effect on different air inlets is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an air exchange valve, a fresh air module and a fresh air air conditioner. Background Art

[0002] With the improvement of people's living standards, users are demanding more than just cooling and heating functions from air conditioners. They also demand fresh indoor air. Conventional air conditioners can circulate heat in indoor air. However, when users close doors and windows, the quality of the air circulating indoors deteriorates over time, resulting in a reduced user experience. To address this issue of deteriorating air quality caused by indoor circulation, conventional air conditioners have introduced a fresh air function, which circulates indoor and outdoor air without opening doors or windows.

[0003] The fresh air module in existing fresh air air conditioners is a separate component, placed on either the left or right side of the unit. Conventional wall-mounted air conditioners have the electrical control box on the right side and the fresh air module on the left. The fresh air module connects to the fresh air duct, drawing in outdoor air and releasing it into the room after purification.

[0004] In the related art, an air exchange valve is used to control the air inlet of the fresh air module to achieve indoor or outdoor air intake. However, the existing air exchange valve usually has only one valve plate, and uses the two sides of a valve plate to seal different air inlets. It requires that the indoor air inlet and the outdoor air inlet are consistent, and the sealing effect is limited, which needs further improvement. Utility Model Content

[0005] In view of this, the purpose of this application is to provide an air exchange valve, a fresh air module and a fresh air air conditioner.

[0006] The technical solutions adopted by this application to solve the above technical problems are:

[0007] In a first aspect, the present application provides an air exchange valve suitable for a fresh air module, wherein the fresh air module has an air inlet, and the air exchange valve includes a first valve plate and a second valve plate, wherein the first valve plate and the second valve plate are arranged at an angle;

[0008] The air inlet includes a first air inlet and a second air inlet. The air exchange valve can rotate to make the first valve plate close the first air inlet and make the second valve plate open the second air inlet, or make the second valve plate close the second air inlet and make the first valve plate open the first air inlet.

[0009] Optionally, in some embodiments of the present application, when the second valve plate seals the second air inlet and the first valve plate opens the first air inlet, the first valve plate and the first air inlet are separated, and a surface of the first valve plate away from the second valve plate and an inner sidewall of the fresh air module enclose a first air inlet channel, and the first air inlet channel is connected to the first air inlet;

[0010] When the first valve plate closes the first air inlet and the second valve plate opens the second air inlet, the second valve plate is separated from the second air inlet, and the surface of the second valve plate away from the first valve plate and the inner wall of the fresh air module form a second air inlet channel, and the second air inlet channel is connected to the second air inlet.

[0011] Optionally, in some embodiments of the present application, the angle formed by the first valve plate and the second valve plate is an acute angle.

[0012] Optionally, in some embodiments of the present application, the surface of the first valve plate away from the second valve plate is an outwardly convex surface;

[0013] The surface of the second valve plate away from the first valve plate is an outwardly convex curved surface or a flat surface.

[0014] Optionally, in some embodiments of the present application, a connecting plate is provided between the first valve plate and the second valve plate.

[0015] Optionally, in some embodiments of the present application, the connecting plate has a noise reduction hole.

[0016] On the third aspect, an embodiment of the present application also provides a fresh air module, including an air inlet and the above-mentioned air exchange valve, the air exchange valve is used to rotatably close the first air inlet and open the second air inlet, or close the second air inlet and open the first air inlet.

[0017] Optionally, in some embodiments of the present application, the fresh air module includes a volute, the first air inlet and the second air inlet are located on the volute, the first air inlet and the second air inlet are inclined at an angle, and the angle formed by the first air inlet and the second air inlet is greater than the angle formed by the first valve plate and the second valve plate; and / or, the first air inlet is a fresh air inlet, and the second air inlet is an indoor air inlet.

[0018] Optionally, in some embodiments of the present application, the fresh air module further includes a driving component, which is connected to the air exchange valve, and the driving component drives the air exchange valve to rotate to seal the first air inlet or the second air inlet.

[0019] In a third aspect, an embodiment of the present application further provides a fresh air air conditioner, which includes the above-mentioned fresh air module.

[0020] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:

[0021] The air exchange valve provided in the present application has two valve plates at an angle to each other arranged on one air exchange valve. When the fresh air module includes two air inlets, the valve plates correspond to the air inlets one-to-one. The first valve plate can adapt to the shape of the first air inlet, and the second valve plate can adapt to the shape of the second air inlet. There is no need to require the first air inlet and the second air inlet to have the same shape, which can reduce the number of parts and improve the sealing effect of different air inlets. The first valve plate and the second valve plate are arranged at an angle, which can reduce the rotation angle of the air exchange valve when sealing the air inlet, thereby improving the stability and service life of the air exchange valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings of the embodiments. Obviously, the drawings described below only relate to some embodiments of the present application and are not intended to limit the present application.

[0023] Figure 1 A schematic structural diagram of an air exchange valve provided in an embodiment of the present application;

[0024] Figure 2 A structural schematic diagram of the air exchange valve provided in an embodiment of the present application from another perspective;

[0025] Figure 3 for Figure 2 Enlarged view of middle Ⅰ;

[0026] Figure 4 An exploded diagram of the structure of a fresh air module provided in an embodiment of the present application;

[0027] Figure 5 This is a schematic diagram of the structure of the fresh air module during external circulation provided in an embodiment of the present application;

[0028] Figure 6 This is a schematic structural diagram of the fresh air module during internal circulation provided in an embodiment of the present application.

[0029] Description of reference numerals:

[0030] 10-air exchange valve; 11-first valve plate; 111-first surface; 12-second valve plate; 121-second surface; 13-connecting plate; 131-noise reduction hole;

[0031] 20-Fresh air module; 21-First air inlet; 22-Second air inlet; 23-First air inlet channel; 24-Second air inlet channel; 25-Drive component. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0033] In the description of this application, it should be understood that the terms "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0034] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes are not elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is to be consistent with the widest scope consistent with the principles disclosed herein.

[0035] To facilitate understanding of the solution of the present application, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.

[0036] First, see Figure 1 and Figure 2The present application provides an air exchange valve 10 suitable for use with a fresh air module 20. The fresh air module 20 has an air inlet. The air exchange valve 10 includes a first valve plate 11 and a second valve plate 12, which are arranged at an angle. The air inlet includes a first air inlet 21 and a second air inlet 22. The air exchange valve 10 can rotate to cause the first valve plate 11 to seal the first air inlet 21 and the second valve plate 12 to open the second air inlet 22, or to cause the second valve plate 12 to seal the second air inlet 22 and the first valve plate 11 to open the first air inlet 21.

[0037] The air exchange valve 10 provided in the present application has two valve plates at an angle to each other set on one air exchange valve 10. When the fresh air module 20 includes two air inlets, the valve plates correspond to the air inlets one by one. The first valve plate 11 can adapt to the shape of the first air inlet 21, and the second valve plate 12 can adapt to the shape of the second air inlet 22. There is no need to require the first air inlet 21 and the second air inlet 22 to have the same shape, which can reduce the number of parts and improve the sealing effect of different air inlets; and the first valve plate 11 and the second valve plate 12 are set at an angle, which can reduce the rotation angle of the air exchange valve 10 when closing the air inlet, thereby improving the stability and service life of the air exchange valve 10.

[0038] It should be noted that the shape and size of the first valve plate 11 can be set according to the shape and size of the first air inlet 21, and the shape and size of the second valve plate 12 can be set according to the shape and size of the first air inlet 21. The shapes and sizes of the first valve plate 11 and the second valve plate 12 can be different.

[0039] In some embodiments, when the second valve plate 12 closes the second air inlet 22 and the first valve plate 11 opens the first air inlet 21, the first valve plate 11 and the first air inlet 21 are separated, and the surface of the first valve plate 11 away from the second valve plate 12 and the inner wall of the fresh air module 20 form a first air inlet channel 23, and the first air inlet channel 23 is connected to the first air inlet 21.

[0040] In other embodiments, when the first valve plate 11 closes the first air inlet 21 and the second valve plate 12 opens the second air inlet 22, the second valve plate 12 and the second air inlet 22 are separated, and the surface of the second valve plate 12 away from the first valve plate 11 and the inner wall of the fresh air module 20 form a second air inlet channel 24, and the second air inlet channel 24 is connected to the second air inlet 22.

[0041] In this way, when one valve plate of the air exchange valve 10 seals an air inlet, the other valve plate can be used to form an air inlet channel, without occupying the space of the air inlet channel and blocking the air intake.

[0042] In some embodiments, the angle formed by the first valve plate 11 and the second valve plate 12 is an acute angle. This allows the air exchange valve 10 to occupy an appropriate amount of space within the fresh air module 20 without affecting the placement of the air intake and other components. Furthermore, the first valve plate 11 can effectively seal the first air inlet 21 and the second valve plate 12 can effectively seal the second air inlet 22.

[0043] In some embodiments, a surface of the first valve plate 11 away from the second valve plate 12 is a first surface 111 , and the first surface 111 is a curved surface.

[0044] In some embodiments, the surface of the second valve plate 12 away from the first valve plate 11 is a second surface 121 , and the second surface 121 is a curved surface or a flat surface.

[0045] The curved surfaces of the first surface 111 or the second surface 121 can be convex surfaces. In other words, when the first surface 111 is a curved surface, there is an arc-shaped protrusion on the first surface 111 facing the first air inlet 21, and when the second surface 121 is a curved surface, there is an arc-shaped protrusion on the second surface 121 facing the second air inlet 22.

[0046] See also Figure 3 The height h of the arc-shaped protrusion satisfies the following conditions: 0<h≤3mm, and can be, for example, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, or any range between two values. Within this height range, the sealing effect of the air inlet or the air diversion effect is improved.

[0047] Exemplarily, when the first surface 111 and the second surface 121 are both curved surfaces, when the first valve plate 11 closes the first air inlet 21 and opens the second air inlet 22, the first surface 111 faces the first air inlet 21. The curve of the first surface 111 can improve the sealing effect of the first valve plate 11 on the first air inlet 21, and the second surface 121 and the inner wall of the fresh air module 20 are enclosed to form a second air inlet channel 24. The second surface 121 is a curved surface, and the curved surface has a certain curvature, which can play a Coanda effect, guide the airflow to turn in advance, and make the airflow flow in the curvature direction of the curved surface, forming a pre-swirling airflow, reducing the noise generated by the airflow hitting the inner wall of the cavity and reducing the loss of air volume, which is conducive to increasing the air intake of the second air inlet 22. Correspondingly, when the second valve plate 12 closes the second air inlet 22 and opens the first air inlet 21, the second surface 121 faces the second air inlet 22. The curved surface of the second surface 121 can improve the sealing effect of the second valve plate 12 on the second air inlet 22, and the first surface 111 and the inner wall of the fresh air module 20 are enclosed to form the first air inlet channel 23. The first surface 111 is a curved surface with a certain curvature, which can play a Coanda effect, guide the airflow to turn in advance, and make the airflow flow in the direction of the curvature of the curved surface, forming a pre-swirling airflow, reducing the noise generated by the airflow hitting the inner wall of the cavity and reducing the loss of air volume, which is conducive to increasing the air intake of the first air inlet 21.

[0048] In some embodiments, a connecting plate 13 is disposed between the first valve plate 11 and the second valve plate 12. Furthermore, the connecting plate 13 is perpendicular to both the first valve plate 11 and the second valve plate 12. The connecting plate 13 enhances the strength of the air exchange valve 10 and supports the first and second valve plates 11, 12, preventing them from loosening after multiple rotations, which could result in the first and second valve plates 11, 12 becoming attached to each other.

[0049] In some embodiments, the connecting plate 13 has a plurality of noise reduction holes 131. The noise reduction holes 131 can absorb noise and reduce the noise generated by the rotation of the air exchange valve 10 or the noise generated by the operation of the fresh air module 20.

[0050] Second, see Figure 4 The embodiment of the present application also provides a fresh air module 20, including an air inlet and the above-mentioned air exchange valve 10, the air exchange valve 10 is used to rotatably close the first air inlet 21 and open the second air inlet 22, or close the second air inlet 22 and open the first air inlet 21.

[0051] In some embodiments, the air exchange valve 10 is rotatably disposed between the first air inlet 21 and the second air inlet 22 to seal the first air inlet 21 and open the second air inlet 22, or to seal the second air inlet 22 and open the first air inlet 21. It will be appreciated that the first valve plate 11 is located on the side facing the first air inlet 21, and the second valve plate 12 is located on the side facing the second air inlet 22.

[0052] In some embodiments, the first air inlet 21 is a fresh air inlet, and the second air inlet 22 is an indoor air inlet. In other embodiments, the first air inlet 21 can be an indoor air inlet, and the second air inlet 22 is a fresh air inlet. The fresh air inlet is an outdoor air inlet.

[0053] In some embodiments, see Figure 5 When the second valve plate 12 closes the second air inlet 22 and the first valve plate 11 opens the first air inlet 21, the first valve plate 11 and the first air inlet 21 are separated, and the surface of the first valve plate 11 away from the second valve plate 12 and the inner wall of the fresh air module 20 form a first air inlet channel 23, and the first air inlet channel 23 is connected to the first air inlet 21.

[0054] In other embodiments, see Figure 6 When the first valve plate 11 closes the first air inlet 21 and the second valve plate 12 opens the second air inlet 22, the second valve plate 12 and the second air inlet 22 are separated, and the surface of the second valve plate 12 away from the first valve plate 11 and the inner wall of the fresh air module 20 form a second air inlet channel 24, and the second air inlet channel 24 is connected to the second air inlet 22.

[0055] For example, the first air inlet 21 is the fresh air inlet, and the second air inlet 22 is the indoor air inlet. Figure 5 The state in is external circulation (fresh air mode), Figure 6 When the outdoor air is in a normal state (no pollution), the Figure 5 In the external circulation, the indoor air inlet is closed and the fresh air inlet is opened. The fresh air module 20 inhales outdoor air, purifies it and releases it to the indoor side to replace the indoor air, avoiding the indoor circulation that causes the air quality to become worse and worse. When the outdoor air is in a state of obvious pollution (severe haze, heavy dust, strong odor, etc.), use Figure 6 In the internal circulation, air is drawn in from the room and purified by the fresh air module 20 before being released to the indoor side. In this solution, different air purification modes can be changed according to the actual indoor and outdoor air conditions to improve comfort. Only one air exchange valve 10 is required to switch between internal and external circulation, saving costs.

[0056] Furthermore, when both the first surface 111 of the first valve plate 11 and the second surface 121 of the second valve plate 12 are curved, when the fresh air module 20 is in the internal circulation state, the first surface 111 of the first valve plate 11 seals the fresh air inlet, thereby improving the sealing effect, while the second surface 121 of the second valve plate 12 forms the second air inlet channel 24, which facilitates the diversion of indoor air. Correspondingly, when the fresh air module 20 is in the external circulation state, the second surface 121 of the second valve plate 12 seals the indoor air inlet, thereby improving the sealing effect, while the first surface 111 of the first valve plate 11 forms the first air inlet channel 23, which facilitates the diversion of outdoor air.

[0057] In some embodiments, the fresh air module 20 includes a volute, with a first air inlet 21 and a second air inlet 22 located on the volute. The first air inlet 21 and the second air inlet 22 are arranged at an angle. Furthermore, the angle formed by the first air inlet 21 and the second air inlet 22 is greater than the angle formed by the first valve plate 11 and the second valve plate 12. This facilitates the rotation of the air exchange valve 10 between the first air inlet 21 and the second air inlet 22, thereby sealing the first air inlet 21 or the second air inlet 22.

[0058] In some embodiments, the fresh air module 20 further includes a driver 25 connected to the air exchange valve 10. The driver 25 drives the air exchange valve 10 to rotate to seal the first air inlet 21 or the second air inlet 22. The driver 25 can be a component known in the art, such as a motor.

[0059] Furthermore, the air exchange valve 10 includes a fixed end and a free end that are relatively arranged. The first valve plate 11 and the second valve plate 12 are connected to the fixed end, and the fixed end is connected to the driving member 25, which drives the free end of the air exchange valve 10 to rotate relative to the fixed end to close the first air inlet 21 or the second air inlet 22.

[0060] In some embodiments, the fresh air module 20 further includes an air outlet. When the first valve plate 11 seals the first air inlet 21, the air outlet communicates with the second air inlet 22. When the second valve plate 12 seals the second air inlet 22, the air outlet communicates with the first air inlet 21. After being purified by the fresh air module 20, indoor or outdoor air can be blown into the room through the air outlet.

[0061] In some embodiments, a filter is further provided in the fresh air module 20 for filtering impurities in the air on the indoor side or the outdoor side to purify the air.

[0062] In a third aspect, an embodiment of the present application further provides a fresh air air conditioner, which includes the above-mentioned fresh air module 20.

[0063] When the fresh air air conditioner is in internal circulation mode, the second valve plate 12 seals the fresh air inlet and opens the indoor air inlet. When the fresh air conditioner is in external circulation mode, the first valve plate 11 seals the indoor air inlet and opens the fresh air inlet. The first valve plate 11 and the second valve plate 12 each control the opening and closing of the fresh air inlet or the indoor air inlet. When the fresh air conditioner is not in operation, the second valve plate 12 seals the fresh air inlet and opens the indoor air inlet, effectively preventing impurities from the outside from entering the fresh air module 20 or the indoor room.

[0064] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0065] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, and documents, cited in this application is hereby incorporated by reference in its entirety, except for any application history that is inconsistent with or conflicts with this application, and any document (currently or subsequently appended to this application) that limits the broadest scope of the claims of this application. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials are inconsistent with or conflict with the content of this application, the descriptions, definitions, and / or terminology used in this application will control.

Claims

1. An air exchange valve, suitable for a fresh air module, wherein the fresh air module has an air inlet, characterized in that: The air exchange valve includes a first valve plate and a second valve plate, wherein the first valve plate and the second valve plate are arranged at an angle; The air inlet includes a first air inlet and a second air inlet, and the air exchange valve can be rotated to make the first valve plate close the first air inlet and make the second valve plate open the second air inlet, or make the second valve plate close the second air inlet and make the first valve plate open the first air inlet.

2. The air exchange valve according to claim 1, characterized in that: When the second valve plate closes the second air inlet and the first valve plate opens the first air inlet, the first valve plate and the first air inlet are separated, and the surface of the first valve plate away from the second valve plate and the inner side wall of the fresh air module enclose a first air inlet channel, and the first air inlet channel is connected to the first air inlet; When the first valve plate closes the first air inlet and the second valve plate opens the second air inlet, the second valve plate and the second air inlet are separated, and the surface of the second valve plate away from the first valve plate and the inner wall of the fresh air module form a second air inlet channel, and the second air inlet channel is connected to the second air inlet.

3. The air exchange valve according to claim 1, characterized in that: An angle formed by the first valve plate and the second valve plate is an acute angle.

4. The air exchange valve according to claim 1, characterized in that: The surface of the first valve plate away from the second valve plate is an outward convex curved surface; The surface of the second valve plate away from the first valve plate is an outwardly convex curved surface or a flat surface.

5. The air exchange valve according to claim 1, characterized in that: A connecting plate is provided between the first valve plate and the second valve plate.

6. The air exchange valve according to claim 5, characterized in that: The connecting plate is provided with a noise reduction hole.

7. A fresh air module, characterized in that: It comprises an air inlet and an air exchange valve according to any one of claims 1 to 6, wherein the air exchange valve is used to rotatably close the first air inlet and open the second air inlet, or to close the second air inlet and open the first air inlet.

8. The fresh air module according to claim 7, characterized in that: The fresh air module includes a volute, the first air inlet and the second air inlet are located on the volute, the first air inlet and the second air inlet are inclined at an angle, and the angle formed by the first air inlet and the second air inlet is greater than the angle formed by the first valve plate and the second valve plate; and / or, the first air inlet is a fresh air inlet, and the second air inlet is an indoor air inlet.

9. The fresh air module according to claim 7, characterized in that: The fresh air module further includes a driving component connected to the air exchange valve, and the driving component drives the air exchange valve to rotate to seal the first air inlet or the second air inlet.

10. A fresh air air conditioner, characterized in that: The fresh air air conditioner includes the fresh air module according to any one of claims 7 to 9.

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