Variable air duct and air conditioner

Abstract

The application relates to the air conditioning technical field, in particular to a variable air duct and an air conditioner, the variable air duct comprises a main air duct, the output end of the main air duct is branched into a refrigeration air duct and a heating air duct, the cold air outlet of the refrigeration air duct is inclined downward, the hot air outlet of the heating air duct is vertically downward, the output end of the air duct is provided with a rotating volute tongue, when the air conditioner is refrigerating, the rotating volute tongue rotates and blocks the heating air duct; when the air conditioner is heating, the rotating volute tongue rotates and blocks the refrigeration air duct, the variable air duct can be switched into different air ducts when refrigerating and heating, so that hot air can quickly fall to the ground, the heating comfort is improved, and the air volume is basically not attenuated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to a variable air duct and an air conditioner. BACKGROUND

[0002] The existing air conditioners generally use the same air duct for cooling and heating, which makes it difficult for hot air to fall, thereby making it inconvenient to achieve rapid warming. The existing technology mainly controls the position and angle of the air deflector or increases a small air deflector to press down the hot air, so that the hot air quickly falls to the ground, but the effect is not ideal. For example, Chinese patent CN113007793A controls the air deflector to flip up by a connecting rod and an air deflector head motor, and moves to a heating position to press down the hot air, but the hot air falls a long distance, the comfort is poor, and the air volume decays greatly. Chinese patent CN101846381A presses down the hot air by a small air deflector, but the heating effect is poor, the hot air is difficult to fall to the ground, and the air resistance is large and the air volume is small. SUMMARY

[0003] One of the purposes of the present application is to provide a variable air duct which can switch to the corresponding air duct when cooling and heating, so that the hot air quickly falls to the ground, improves the heating comfort, and the air volume does not decay substantially.

[0004] The second purpose of the present application is to provide an air conditioner.

[0005] To achieve one of the above purposes, the present application provides the following technical solutions:

[0006] A variable air duct is provided, which comprises a main air duct, the output end of the main air duct is branched into a cooling air duct and a heating air duct, and a rotating volute tongue is arranged at the output end of the air duct. When the air conditioner is cooling, the rotating volute tongue rotates and blocks the heating air duct. When the air conditioner is heating, the rotating volute tongue rotates and blocks the cooling air duct.

[0007] In some embodiments, the rotating volute tongue is located at the branching connection point of the cooling air duct and the heating air duct, the rotating volute tongue is hinged to the branching connection point, and the rotating volute tongue rotates and swings to block the cooling air duct or swings to block the heating air duct.

[0008] In some embodiments, a fixed volute tongue and a volute shell are further included, the fixed volute tongue and the volute shell form the main air duct, a notch is formed in the volute shell, a baffle forming the heating air duct is connected to the notch, and the fixed volute tongue and the volute shell with the notch form the cooling air duct.

[0009] In some embodiments, the branch connection point is located on the volute at the gap, the leading end of the rotating volute is hinged to the branch connection point, and the trailing end of the rotating volute is tilted to one side of the cooling air duct, and the tilted trailing end is overlapped on the fixed volute or on the baffle forming the heating air duct.

[0010] In some embodiments, when the trailing end of the rotating volute is overlapped on the fixed volute, the rotating volute is tangent to the profile of the fixed volute.

[0011] In some embodiments, the side surface of the rotating volute is provided with a sweeping blade.

[0012] In some embodiments, the cooling air outlet of the cooling air duct is provided with a cooling air deflector, and / or the heating air outlet of the heating air duct is provided with a heating air deflector.

[0013] In some embodiments, the rotating volute is driven to rotate by the rotating shaft of the motor.

[0014] In some embodiments, the baffle is a moving baffle, which adjusts the air duct size of the heating air duct and / or adjusts the air supply direction of the heating air duct.

[0015] In some embodiments, the cooling air outlet of the cooling air duct is inclined downward, and the heating air outlet of the heating air duct is vertically downward.

[0016] The variable air duct of the present application has the following advantages:

[0017] The variable air duct of the present application is divided into a cooling air duct and a heating air duct. When the air conditioner is in a cooling state, the rotating volute rotates and blocks the heating air duct, and at this time the cooling air duct is used. When the air conditioner is in a heating state, the rotating volute rotates and blocks the cooling air duct, and at this time the heating air duct is used, and the heating air duct is vertically downward without any obstruction, so that the hot air falls quickly to the ground, improving the heating comfort and the air volume is not attenuated.

[0018] To achieve the above-mentioned second purpose, the present application provides the following technical solutions:

[0019] The present application provides an air conditioner comprising the above-mentioned variable air duct. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic view of the variable air duct of the embodiment when it is closed.

[0021] Figure 2 is a schematic view of the variable air duct of the embodiment when it is in cooling.

[0022] Figure 3 is a schematic view of the variable air duct of the embodiment when it is in heating.

[0023] Figure 4 is a working state diagram of the rotating volute tongue and the fixed volute tongue of the embodiment.

[0024] Reference signs

[0025] Main air duct 1; refrigeration air duct 2; heating air duct 3; cold air outlet 4; hot air outlet 5; rotating volute tongue 6, head end 61, tail end 62; branch connection point 7; fixed volute tongue 8; volute 9; notch 10; baffle 11; air sweeping blade 12; refrigeration air deflector 13. DETAILED DESCRIPTION

[0026] Preferred embodiments of the present application will be described herein below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it is understood that the present application can be carried out in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0027] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0028] It should be understood that although the terms "first", "second", "third" etc. can be employed in this disclosure to describe various information, but these information should not be limited by these terms. These terms are only used to distinguish one piece of information from another piece of information of the same type. For example, the first information can also be called the second information, and similarly, the second information can also be called the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0029] Preferred embodiments of the present application will be described herein below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it is understood that the present application can be carried out in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0030] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the present application and the following claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0031] It is to be understood that, although the terms "first," "second," "third," etc. can be used herein to describe various information, the information is not limited by these terms. These terms are only used to distinguish one category of information from another. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present application. Therefore, the use of the terms "first," "second," etc., are not intended to limit the number of features in any claim. The meaning of "a," "an," and "the" includes singular and plural referents unless the context clearly dictates otherwise.

[0032] Embodiment 1

[0033] The present embodiment discloses a variable air duct, Figure 1 As shown, it comprises a main air duct 1, the output end of which branches into a refrigeration air duct 2 and a heating air duct 3, the cold air outlet 4 of the refrigeration air duct 2 is inclined downward, the hot air outlet 5 of the heating air duct 3 is vertically downward, and the output end of the air duct is provided with a rotating volute tongue 6. Figure 2 As shown, when the air conditioner is cooling, the rotating volute tongue 6 rotates and blocks the heating air duct 3, and cooling can only be output from the refrigeration air duct 2; Figure 3 As shown, when the air conditioner is heating, the rotating volute tongue 6 rotates and blocks the refrigeration air duct 2, and heating can only be output from the heating air duct 3, and the heating air duct 3 is vertically downward without any obstruction, and the hot air falls quickly to the ground, improving the heating comfort and the air volume is not substantially attenuated Figure 2 and Figure 3 As shown, the rotating volute tongue 6 is located at the branching connection point 7 of the refrigeration air duct 2 and the heating air duct 3, the rotating volute tongue 6 is hinged to the branching connection point 7, and the rotating volute tongue 6 rotates and swings to block the refrigeration air duct 2 or swings to block the heating air duct 3. Since the rotating volute tongue 6 is arranged at the branching connection point 7, the rotating volute tongue 6 only needs to rotate one side to block the corresponding air duct, realizes quick switching, and can form a complete refrigeration air duct 2 or heating air duct 3.

[0034] Figure 1As shown, the fixed volute tongue 8 and the volute shell 9 form the main air duct 1, the volute shell 9 is provided with a notch 10, the notch 10 is connected with the baffle 11 forming the heating air duct 3, and the fixed volute tongue 8 and the volute shell 9 provided with the notch 10 form the cooling air duct 2. The notch 10 facilitates the extension of the main air duct 1 to the heating air duct 3, so that the remaining rear end air duct of the main air duct 1 is the cooling air duct 2.

[0035] Figure 1 And Figure 4 As shown, the branch connection point 7 is located at the notch 10 of the volute shell 9, the leading end 61 of the rotating volute tongue 6 is hinged to the branch connection point 7, and the trailing end 62 of the rotating volute tongue 6 is raised to one side of the cooling air duct 2, and the raised trailing end 62 is overlapped on the fixed volute tongue 8 or the baffle 11 forming the heating air duct 3. The raised trailing end 62 can form a profile line which ensures the smoothness of air flow.

[0036] Figure 1 And Figure 4 As shown, when the trailing end 62 of the rotating volute tongue 6 is overlapped on the fixed volute tongue 8, the rotating volute tongue 6 is tangent to the profile line of the fixed volute tongue 8. The tangent setting of the profile line of the rotating volute tongue 6 and the fixed volute tongue 8 enables the rotating volute tongue 6 to overlap the fixed volute tongue 8 with the maximum area, thereby improving the sealing of the connection.

[0037] Figure 1 As shown, a plurality of air sweeping blades 12 are arranged on the two side surfaces of the rotating volute tongue 6 respectively, and the plurality of air sweeping blades 12 on each side are arranged in alignment on the side surface of the rotating volute tongue 6. The arrangement of the air sweeping blades 12 on the rotating volute tongue 6 can effectively ensure that air sweeping can be realized on both the heating air duct 3 and the cooling air duct 2, thereby ensuring the original air sweeping effect.

[0038] Figure 2 As shown, the cooling air outlet 4 of the cooling air duct 2 is provided with a cooling air deflector 13. When heating, the cooling air deflector 13 is closed. Figure 1 As shown, the cooling air deflector 13 is closed, and the rotating volute tongue 6 is located on the notch 10.

[0039] The heating air outlet 5 of the heating air duct 3 is provided with a heating air deflector (not shown in the figure), which assists in air supply for heating.

[0040] The rotating volute tongue 6 is driven to rotate by the rotating shaft (not shown in the figure) of the motor.

[0041] Figure 3As shown, the baffle 11 is a movable baffle 11, which adjusts the air duct size of the heating air duct 3 and adjusts the air supply direction of the heating air duct 3. The movable baffle makes the heating air outlet 5 variable in size, so that the air supply amount and the air supply direction can be adjusted, and the flexibility of the heating air duct is improved.

[0042] Embodiment 2

[0043] The embodiment discloses an air conditioner comprising the variable air duct of embodiment 1.

[0044] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the various embodiments herein are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only and not limiting the scope of the application. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus can be considered part of the present application. In the examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation of the scope of the application. Thus, other examples of the exemplary embodiments can have different values. It is noted that like numbers and letters refer to like elements throughout the several views of the drawings and, as such, no further discussion with regard thereto is deemed necessary. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only and not limiting the scope of the application.

[0045] In the description of the present application, it is to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal", and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0046] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated at 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The terms "first", "second", etc. as can be used herein do not have any specific meaning and are used only to distinguish one component from another.

[0047] In addition, it should be pointed out that the use of the terms "first", "second" and the like to describe various elements is merely intended to differentiate one element from another, and does not imply a special meaning unless otherwise stated. Therefore, these terms should not be interpreted as limiting the scope of protection of the present application.

[0048] The preferred embodiments of the present application have been described above with the purpose to enable not to limit the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A variable air duct, characterized by: The main air duct has an output end which branches into a cooling air duct and a heating air duct, and the output end of the main air duct is provided with a rotating volute tongue, which rotates and blocks the heating air duct when the air conditioner is cooling; The rotating volute tongue rotates and blocks the cooling air duct when the air conditioner is heating; the fixed volute tongue and volute shell form the main air duct, the volute shell is provided with a notch, the notch is connected with a baffle which forms the heating air duct, and the fixed volute tongue and the volute shell with the notch form the cooling air duct; the side surface of the rotating volute tongue is provided with a sweeping blade; the baffle is a movable baffle, which adjusts the size of the heating air duct and / or adjusts the air supply direction of the heating air duct.

2. The variable air-duct of claim 1, wherein: The rotating volute tongue is located at the branching connection point of the cooling air duct and the heating air duct, and is hinged to the branching connection point; the rotating volute tongue rotates and swings to block the cooling air duct or swings to block the heating air duct.

3. The variable air-duct of claim 1, wherein: The branching connection point is located on the volute shell at the notch, the leading end of the rotating volute tongue is hinged to the branching connection point, and the trailing end of the rotating volute tongue is raised to one side of the cooling air duct, and the raised trailing end is lapped on the fixed volute tongue or the baffle which forms the heating air duct.

4. The variable air-duct of claim 3, wherein: When the trailing end of the rotating volute tongue is lapped on the fixed volute tongue, the rotating volute tongue is tangent to the profile of the fixed volute tongue.

5. The variable air duct of claim 1, wherein: The cooling air outlet of the cooling air duct is provided with a cooling air deflector, and / or the heating air outlet of the heating air duct is provided with a heating air deflector.

6. The variable air duct of claim 1, wherein: The rotating volute tongue is driven to rotate by the rotating shaft of the motor.

7. The variable air duct of claim 1, wherein: The cooling air outlet of the cooling air duct is inclined downward, and the heating air outlet of the heating air duct is vertically downward.

8. An air conditioner characterized by: The variable air duct of any one of claims 1-7 is included.

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