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 air exchange valve is suitable for the fresh air module, the fresh air module is provided with an air inlet, the air exchange valve comprises a valve plate, and the valve plate is used for closing or opening the air inlet; the valve plate is provided with a first surface and a second surface which are oppositely arranged, and the first surface is a curved surface; when the air exchange valve seals the air inlet, the first surface faces the air inlet, and the second surface is arranged back to the air inlet. According to the air exchange valve, when the valve plate seals the air inlet, the first surface is the curved surface, and the sealing reliability can be 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, reducing the 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, but the sealing effect of the existing air exchange valve is limited and 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, an embodiment of the present application provides an air exchange valve applicable to a fresh air module, wherein the fresh air module has an air inlet, and the air exchange valve includes a valve plate, which is used to close or open the air inlet; the valve plate has a first surface and a second surface arranged opposite to each other, and the first surface is a curved surface;

[0008] When the air exchange valve closes the air inlet, the first surface is arranged toward the air inlet, and the second surface is arranged away from the air inlet.

[0009] Optionally, in some embodiments of the present application, the valve plate can be rotatably closed or opened to close the air inlet. When the air exchange valve opens the air inlet, the second surface and the inner wall of the fresh air module form an air inlet channel, and the air inlet channel is connected to the air inlet.

[0010] Optionally, in some embodiments of the present application, the second surface is a curved surface or a flat surface.

[0011] Optionally, in some embodiments of the present application, a handle portion is further provided on the second surface.

[0012] Optionally, in some embodiments of the present application, the curved surface is a convex curved surface.

[0013] In a second aspect, an embodiment of the present application further provides a fresh air module, comprising an air inlet and the above-mentioned air exchange valve, wherein the air exchange valve is used to close or open the air inlet.

[0014] Optionally, in some embodiments of the present application, the air inlet includes a first air inlet and a second air inlet, and the air exchange valve is rotatably disposed between the first air inlet and the second air inlet to seal the first air inlet and open the second air inlet, or to seal the second air inlet and open the first air inlet;

[0015] When the air exchange valve closes the second air inlet and opens the first air inlet, the first surface is arranged to face away from the second air inlet, while the second surface is arranged to face the second air inlet. The first surface 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.

[0016] When the air exchange valve closes the first air inlet and opens the second air inlet, the first surface is set toward the first air inlet, and the second surface is set away from the first air inlet. The second surface and the inner wall of the fresh air module enclose a second air inlet channel, and the second air inlet channel is connected to the second 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, and the first air inlet and the second air inlet are inclined at an angle; 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 member and a connecting member, the connecting member connecting the driving member and the air exchange valve, and the driving member drives the air exchange valve to rotate by controlling the connecting member 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 this application has a curved first surface that faces the air inlet when the valve plate seals the air inlet. This curved surface offers high flexibility and can adapt to various air inlet shapes, including uneven, tortuous, or irregular ones. It also offers high adaptability, effectively sealing the air inlet and maintaining seal integrity even when the air inlet deforms or vibrates due to temperature, pressure, high speed, and other factors. The curved surface also allows for more even pressure distribution on the valve plate, reducing local stress concentration and thus improving seal reliability. 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 for Figure 5 Cross-sectional view along AA direction;

[0029] Figure 7 This is a schematic structural diagram of the fresh air module during internal circulation provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 10-air exchange valve; 11-valve plate; 111-first surface; 112-second surface; 1121-handle;

[0032] 20-Fresh air module; 21-Air inlet; 211-First air inlet; 212-Second air inlet; 22-Air inlet channel; 221-First air inlet channel; 222-Second air inlet channel; 23-Drive member; 24-Connecting member. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] First, see Figure 1 and Figure 2 The present invention provides an air exchange valve 10 for use with a fresh air module 20. The fresh air module 20 has an air inlet 21. The air exchange valve 10 includes a valve plate 11 for sealing or opening the air inlet 21. The valve plate 11 has a first surface 111 and a second surface 112 disposed opposite each other. The first surface 111 is a curved surface. When the air exchange valve 10 seals the air inlet 21, the first surface 111 faces the air inlet 21, while the second surface 112 faces away from the air inlet 21.

[0038] The air exchange valve 10 provided in the present application has a first surface 111 that is a curved surface when the valve plate 11 closes the air inlet 21. The curved surface has high flexibility and can adapt to air inlets 21 of various shapes, including uneven, tortuous or irregular shapes. The curved surface also has high adaptability. When the air inlet 21 is deformed or vibrated due to temperature, pressure, high speed, etc., it can still effectively seal the air inlet 21 and maintain the integrity of the seal. The curved surface can also make the valve plate 11 subject to a more uniform pressure distribution, reduce local stress concentration, and thus improve the reliability of the seal.

[0039] In some embodiments, the valve plate 11 can be rotated to close or open the air inlet 21. When the air exchange valve 10 opens the air inlet 21, the second surface 112 and the inner side wall of the fresh air module 20 enclose an air inlet channel 22, and the air inlet channel 22 is connected to the air inlet 21. In other words, the first surface 111 is located on the side facing the air inlet channel 22. The first surface 111 is a curved surface with a certain curvature, which can produce a Coanda effect, guiding the airflow to turn in advance, so that the airflow flows 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 volume of the air inlet 21. In addition, the airflow entering from the air inlet 21 can generate an airflow impact on the first surface 111, thereby enhancing the sealing effect of the second surface 112 and the inner side wall of the fresh air module 20.

[0040] In some embodiments, the second surface 112 is a curved surface or a flat surface.

[0041] In some embodiments, a handle 1121 is further provided on the second surface 112. The handle 1121 can facilitate the taking of the air exchange valve 10 and facilitate the rotation of the air exchange valve 10 when the air exchange valve 10 is manually controlled to close or open the air inlet 21.

[0042] In some embodiments, the curved surface is an outward convex surface. It should be noted that if the curved surface of the first surface 111 is an outward convex surface, when the second surface 112 is a curved surface, the curved surface of the second surface 112 can also be an outward convex surface. For example, if the first surface 111 is an outward convex surface, there is an arc-shaped protrusion on the first surface 111 facing the air inlet 21.

[0043] Further, see Figure 3 The height h of the arc-shaped protrusion satisfies the following: 0 < h ≤ 3 mm, and can be, for example, 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, or any range between two values. Within this height range, the first surface 111 effectively seals the air inlet 21, and effectively guides the airflow when the first surface 111 opens the air inlet 21.

[0044] Second, see Figure 4The embodiment of the present application further provides a fresh air module 20 , including an air inlet 21 and the above-mentioned air exchange valve 10 , and the air exchange valve 10 is used to close or open the air inlet 21 .

[0045] In some embodiments, the air inlet 21 includes a first air inlet 211 and a second air inlet 212, and the air exchange valve 10 is rotatably disposed between the first air inlet 211 and the second air inlet 212 to close the first air inlet 211 and open the second air inlet 212, or to close the second air inlet 212 and open the first air inlet 211.

[0046] In some embodiments, the first air inlet 211 is a fresh air inlet, and the second air inlet 212 is an indoor air inlet. In other embodiments, the first air inlet 211 can be an indoor air inlet, and the second air inlet 212 is a fresh air inlet. The fresh air inlet is the outdoor air inlet 21.

[0047] In some embodiments, see Figure 5 and Figure 6 When the air exchange valve 10 closes the second air inlet 212 and opens the first air inlet 211, the first surface 111 is set to face away from the second air inlet 212, and the second surface 112 is set to face the second air inlet 212. The first surface 111 and the inner side wall of the fresh air module 20 enclose a first air inlet channel 221, and the first air inlet channel 221 is connected to the first air inlet 211.

[0048] In other embodiments, see Figure 7 When the air exchange valve 10 closes the first air inlet 211 and opens the second air inlet 212, the first surface 111 is set toward the first air inlet 211, and the second surface 112 is set away from the first air inlet 211. The second surface 112 and the inner side wall of the fresh air module 20 enclose a second air inlet channel 222, and the second air inlet channel 222 is connected to the second air inlet 212.

[0049] For example, the first air inlet 211 is a fresh air inlet, and the second air inlet 212 is an indoor air inlet. Figure 6 The state in is external circulation (fresh air mode), Figure 7 When the outdoor air is in a normal state (no pollution), the Figure 6 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 7In 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.

[0050] Furthermore, when both the first surface 111 and the second surface 112 are curved, when the fresh air module 20 is in the internal circulation state, the first surface 111 seals the fresh air inlet to improve the sealing effect, while the second surface 112 forms the second air inlet channel 222, which facilitates the diversion of indoor air. Correspondingly, when the fresh air module 20 is in the external circulation state, the second surface 112 seals the indoor air inlet to improve the sealing effect, while the first surface 111 forms the first air inlet channel 221, which facilitates the diversion of outdoor air.

[0051] In some embodiments, the fresh air module 20 includes a volute, with a first air inlet 211 and a second air inlet 212 located on the volute. The first air inlet 211 and the second air inlet 212 are arranged at an angle. Furthermore, the angle between the first air inlet 211 and the second air inlet 212 is less than or equal to 90°. This allows the air exchange valve 10 to rotate at an appropriate angle, eliminating the need for large rotations, thereby improving the stability and service life of the air exchange valve 10.

[0052] In some embodiments, the fresh air module 20 further includes a driver and a connector. The connector connects the driver and the air exchange valve 10. The driver controls the connector to drive the air exchange valve 10 to rotate, thereby sealing the first air inlet 211 or the second air inlet 212. The driver and connector can be parts known in the art. For example, the driver can be a motor, and the connector can be a connecting rod.

[0053] Furthermore, the valve plate 11 includes a fixed end and a free end that are relatively arranged. The fixed end is connected to the connecting member. The driving member controls the connecting member to drive the free end of the valve plate 11 to rotate relative to the fixed end to seal the first air inlet 211 or the second air inlet 212.

[0054] In some embodiments, the fresh air module 20 further includes an air outlet, which is connected to the air inlet. After being purified by the fresh air module 20, indoor or outdoor air can be blown into the room through the air outlet.

[0055] 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.

[0056] 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.

[0057] When the fresh air air conditioner is in internal circulation mode, valve plate 11 seals the fresh air inlet and opens the indoor air inlet. When the fresh air conditioner is in external circulation mode, valve plate 11 seals the indoor air inlet and opens the fresh air inlet. The curved surface of the sealed air inlet 21 improves sealing, while the curved surface of the open air inlet 21 promotes air flow guidance. When the fresh air conditioner is not in operation, valve plate 11 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.

[0058] 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.

[0059] 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 valve plate, which is used to close or open the air inlet; the valve plate has a first surface and a second surface arranged opposite to each other, and the first surface is a curved surface; When the air exchange valve closes the air inlet, the first surface is arranged toward the air inlet, and the second surface is arranged away from the air inlet.

2. The air exchange valve according to claim 1, characterized in that: The valve plate can be rotated to close or open the air inlet. When the air exchange valve opens the air inlet, the second surface and the inner side wall of the fresh air module form an air inlet channel, and the air inlet channel is connected to the air inlet.

3. The air exchange valve according to claim 1, characterized in that: The second surface is a curved surface or a flat surface.

4. The air exchange valve according to claim 1, characterized in that: A handle portion is also provided on the second surface.

5. The air exchange valve according to claim 1 or 3, characterized in that: The curved surface is an outwardly convex curved surface.

6. 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 5, wherein the air exchange valve is used to close or open the air inlet.

7. The fresh air module according to claim 6, characterized in that: The air inlet includes a first air inlet and a second air inlet, and the air exchange valve is rotatably arranged between the first air inlet and the second air inlet to close the first air inlet and open the second air inlet, or to close the second air inlet and open the first air inlet; When the air exchange valve closes the second air inlet and opens the first air inlet, the first surface is arranged to face away from the second air inlet, while the second surface is arranged to face the second air inlet. The first surface 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 air exchange valve closes the first air inlet and opens the second air inlet, the first surface is set toward the first air inlet, and the second surface is set away from the first air inlet. The second surface and the inner side wall of the fresh air module enclose a second air inlet channel, and the second air inlet channel is connected to the second 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, and the first air inlet and the second air inlet are inclined at an angle; 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 member and a connecting member, wherein the connecting member connects the driving member and the air exchange valve, and the driving member drives the air exchange valve to rotate by controlling the connecting member 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 6 to 9.

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