Indoor unit and air conditioner having the same

Abstract

The present invention provides an indoor unit and an air conditioner having the same, wherein the indoor unit comprises a first shell and a second shell, wherein the first shell has an installation cavity, and the installation cavity is used to install a fan; the first end of the second shell is detachably connected to the first shell, the second end of the second shell is arranged away from the first shell, and an air duct connected to the installation cavity is formed inside the second shell, the air duct extends from the first end of the second shell to the second end of the second shell, a volute structure is formed at the end of the air duct close to the installation cavity, and a pressure diffuser is arranged on the inner wall of the air duct away from the installation cavity, and the pressure diffuser is movably arranged relative to the second shell. The present invention solves the problem that the indoor unit bottom shell and the volute tongue of the air conditioner in the prior art are integrated, and the air volume of the air outlet of the indoor unit cannot be increased by adding other components.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to an indoor unit and an air conditioner having the same. Background Art

[0002] In the prior art, the fan of the indoor unit of the air conditioner generates noise during operation, and a volute tongue is usually provided above the air outlet to reduce the noise emitted by the fan. However, in order to reduce the installation gap between the bottom shell and the volute tongue that affects the flow direction of the airflow, the indoor unit of the prior art usually integrates the bottom shell and the volute tongue into one piece. However, the integrated molding process is difficult, and it is impossible to increase the air volume of the air outlet of the indoor unit by adding other components. Summary of the invention

[0003] The main purpose of the present invention is to provide an indoor unit and an air conditioner having the same, so as to solve the problem that the indoor unit bottom shell and the volute tongue of the air conditioner in the prior art are integrated and the air volume of the air outlet of the indoor unit cannot be increased by adding other components.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, an indoor unit is provided, comprising a first shell and a second shell, wherein the first shell has an installation cavity, and the installation cavity is used to install a fan; the first end of the second shell is detachably connected to the first shell, and the second end of the second shell is arranged away from the first shell, and an air duct connected to the installation cavity is formed inside the second shell, and the air duct extends from the first end of the second shell to the second end of the second shell, and a volute tongue structure is formed at the end of the air duct close to the installation cavity, and a diffuser is arranged on the inner wall of the air duct away from the installation cavity, and the diffuser is movably arranged relative to the second shell.

[0005] Further, the diffuser has an initial position flush with the inner wall of the air duct, and the diffuser has a diffuser position protruding from the inner wall surface of the air duct to reduce the flow area of ​​the air duct.

[0006] Furthermore, the volute tongue structure includes an arc transition section and a volute tongue plate section, wherein the first end of the arc transition section is connected to the first end of the second shell, the second end of the arc transition section is arranged at an angle to the first end of the arc transition section, and the second end of the arc transition section is extended away from the diffuser; the first end of the volute tongue plate section is connected to the second end of the arc transition section, the second end of the volute tongue plate section is extended away from the arc transition section, a limiting space is formed between the volute tongue plate section and the wall surface of the installation cavity, and the fan is arranged in the limiting space.

[0007] Furthermore, the volute tongue structure is integrally formed with the second shell.

[0008] Furthermore, the volute tongue structure is made by a plastic molding process.

[0009] Furthermore, the connecting position between the air duct and the installation cavity has a smooth transition, and the connection between the volute tongue structure and the inner wall of the air duct has a smooth transition.

[0010] Further, the diffuser includes a transmission shaft and a diffuser plate, the transmission shaft is connected to the air duct wall of the air duct, and the transmission shaft is rotatably arranged relative to the volute structure; one end of the diffuser plate is connected to the transmission shaft, and the second end of the diffuser plate is a free end, and the rotation of the transmission shaft drives the diffuser plate to rotate; wherein, when the diffuser is located at the initial position, the diffuser plate is flush with the air duct wall on the side where the diffuser is provided; when the diffuser is located at the diffusion position, the diffuser plate is arranged at an angle to the air duct wall on the side where the diffuser is provided.

[0011] Furthermore, when the diffuser is at the diffuser position, the second end of the diffuser plate is arranged at a distance from the duct wall of the duct away from the diffuser, so that the area between the second end of the diffuser and the duct wall of the duct forms a flow area.

[0012] Furthermore, the transmission shaft and the diffuser plate are integrally formed; or, the transmission shaft and the diffuser plate are interference fit.

[0013] Furthermore, the diffuser portion also includes a driving portion, which is drivingly connected to the transmission shaft, and is used to drive the transmission shaft to drive the diffuser plate to rotate a preset angle.

[0014] According to another aspect of the present invention, an air conditioner is provided. The air conditioner includes an indoor unit, and the indoor unit is the indoor unit described above.

[0015] By applying the technical solution of the present invention, the indoor unit is set to a structure including a first shell and a second shell. At the same time, the first shell and the second shell are detachably connected, and the air duct of the second shell is connected to the installation cavity of the first shell where the fan is installed. In this way, the air outlet reliability of the indoor unit is ensured. By setting the first shell and the second shell as a detachable structure, the difficulty of processing and manufacturing the first shell and the second shell is reduced. It is also convenient to set a volute structure at the end of the air duct close to the installation cavity to reduce the noise at the air outlet of the indoor unit. It is also convenient to set a diffuser on the inner wall of the air duct away from the installation cavity. By setting the diffuser, when it is necessary to increase the air volume at the air outlet of the indoor unit, it is only necessary to adjust the diffuser to change the air volume at the air outlet, thereby ensuring the comfort level in the room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1A partial structural schematic diagram of an indoor unit of an air conditioner according to an optional embodiment of the present invention is shown;

[0018] Figure 2 Shows Figure 1 Schematic diagram of the exploded structure of the indoor unit;

[0019] Figure 3 Shows Figure 1 Schematic diagram of the cross-sectional structure of the indoor unit.

[0020] The above drawings include the following reference numerals:

[0021] 10. First shell; 11. Mounting cavity; 20. Volute tongue structure; 21. Air duct; 22. Second shell; 23. Volute tongue plate section; 24. Arc transition section; 30. Diffuser; 31. Transmission shaft; 32. Diffuser plate; 33. Drive unit; 40. Fasteners. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In order to solve the problem that the indoor unit bottom shell and the volute tongue of the air conditioner in the prior art are integrated into one design and the air volume of the air outlet of the indoor unit cannot be increased by adding other components, the present invention provides an indoor unit and an air conditioner, wherein the air conditioner includes an indoor unit, and the indoor unit is the indoor unit described above and below.

[0024] like Figures 1 to 3 As shown, the indoor unit includes a first shell 10 and a second shell 22, wherein the first shell 10 has an installation cavity 11, and the installation cavity 11 is used to install a fan; a first end of the second shell 22 is detachably connected to the first shell 10, and a second end of the second shell 22 is arranged away from the first shell 10, and an air duct 21 connected to the installation cavity 11 is formed inside the second shell 22, and the air duct 21 extends from the first end of the second shell 22 to the second end of the second shell 22, and a volute tongue structure 20 is formed at the end of the air duct 21 close to the installation cavity 11, and a diffuser 30 is arranged on the inner wall of the air duct 21 away from the installation cavity 11, and the diffuser 30 is movably arranged relative to the second shell 22.

[0025] By configuring the indoor unit to include a first shell 10 and a second shell 22, the first shell 10 and the second shell 22 are detachably connected, and the air duct 21 of the second shell 22 is connected to the installation cavity 11 of the first shell 10 where the fan is installed. In this way, the reliability of the air outlet of the indoor unit is ensured. By configuring the first shell 10 and the second shell 22 to be detachable, the difficulty of processing and manufacturing the first shell 10 and the second shell 22 is reduced. It is also convenient to arrange a volute structure 20 at the end of the air duct 21 close to the installation cavity 11 to reduce the noise at the air outlet of the indoor unit. It is also convenient to arrange a diffuser 30 on the inner wall of the air duct 21 away from the installation cavity 11. By arranging the diffuser 30, when it is necessary to increase the air volume at the air outlet of the indoor unit, it is only necessary to adjust the diffuser 30 to change the air volume at the air outlet, thereby ensuring the comfort level in the room.

[0026] like Figure 3 As shown, the diffuser 30 has an initial position flush with the inner wall of the air duct 21, and the diffuser 30 has a diffuser position protruding from the inner wall surface of the air duct 21 to reduce the flow area of ​​the air duct 21. In this way, when the diffuser 30 is at the initial position, the air outlet reliability of the air outlet is ensured; when the diffuser 30 is at the diffuser position, it is ensured that the diffuser 30 can effectively reduce the flow area of ​​the air duct 21, thereby increasing the air pressure at the air outlet, and then increasing the air volume; in addition, it is only necessary to adjust the diffuser 30 at the initial position to the diffuser position. When the diffuser 30 is at the diffuser position, the flow area of ​​the air duct 21 is effectively reduced, which is conducive to increasing the air volume of the air outlet, thereby ensuring the comfort level in the room.

[0027] like Figure 3 As shown, the volute tongue structure 20 includes an arc transition section 24 and a volute tongue plate section 23, wherein the first end of the arc transition section 24 is connected to the first end of the second shell 22, the second end of the arc transition section 24 is arranged at an angle with the first end of the arc transition section 24, and the second end of the arc transition section 24 is extended away from the diffuser 30; the first end of the volute tongue plate section 23 is connected to the second end of the arc transition section 24, the second end of the volute tongue plate section 23 is extended away from the arc transition section 24, and a limited space is formed between the volute tongue plate section 23 and the cavity wall surface of the installation cavity 11, and the fan is arranged in the limited space. In this way, by setting the volute tongue structure 20 to include the arc transition section 24 and the volute tongue plate section 23, the connection reliability of the volute tongue structure 20 and the second shell 22 is ensured, and the connection reliability of the volute tongue structure 20 and the first shell 10 is ensured, and the volute tongue structure 20 can play the purpose of reducing the noise at the air outlet.

[0028] Optionally, the volute tongue structure 20 is integrally formed with the second shell 22. In this way, the volute tongue structure 20 and the second shell 22 are an integral structure, ensuring the overall structural strength, ensuring that there is no gap between the volute tongue structure 20 and the second shell 22, and no high and low alternating surfaces, ensuring that the air duct 21 of the second shell 22 is sufficiently smooth, thereby ensuring the air volume of the air outlet.

[0029] It should be noted that in the present application, the integrally formed second shell 22 and the volute tongue structure 20 are fixedly mounted on the first shell 10 by fasteners 40 , and there are multiple fasteners 40 to ensure the stability of the connection between the second shell 22 and the first shell 10 .

[0030] It should be noted that in the present application, considering that the deformation of the plastic molding process is small, the volute tongue structure 20 is optionally made by the plastic molding process. In this way, the volute tongue structure 20 is ensured to have a sufficiently long service life. In addition, the diffuser 30 is arranged on the second housing 22 and can be pre-installed before assembling the indoor unit, reducing the installation parts in the final assembly process, thereby improving the efficiency of the final assembly production line.

[0031] Preferably, the connection position between the air duct 21 and the installation cavity 11 is smoothly transitioned, and the connection between the volute tongue structure 20 and the inner wall of the air duct 21 is smoothly transitioned. In this way, the obstruction to the airflow at the air outlet is reduced, so that the airflow can flow smoothly and smoothly, and the influence on the flow of the airflow is reduced as much as possible, ensuring that the air volume of the air outlet of the indoor unit is sufficient, which is conducive to improving the air outlet effect of the air conditioner.

[0032] like Figure 2 and Figure 3 As shown, the diffuser 30 includes a transmission shaft 31 and a diffuser plate 32, the transmission shaft 31 is connected to the air duct wall of the air duct 21, and the transmission shaft 31 is rotatably arranged relative to the volute tongue structure 20; one end of the diffuser plate 32 is connected to the transmission shaft 31, and the second end of the diffuser plate 32 is a free end, and the rotation of the transmission shaft 31 drives the diffuser plate 32 to rotate; wherein, when the diffuser 30 is located at the initial position, the diffuser plate 32 is flush with the air duct wall of the air duct 21 on the side where the diffuser 30 is arranged; when the diffuser 30 is located at the diffusion position, the diffuser plate 32 is arranged at an angle with the air duct wall of the air duct 21 on the side where the diffuser 30 is arranged. In this way, the diffuser plate 32 is switched between the initial position and the diffusion position in a rotating manner, and the air volume at the air outlet is effectively changed under the premise of ensuring that the structure of the diffuser 30 is simple enough.

[0033] It should be noted that, in the present application, the rotation angle of the diffuser plate 32 of the diffuser portion 30 is adjusted according to the rotation speed of the fan blades, so as to achieve an optimal air outlet effect.

[0034] It should be noted that in the present application, when the pressure diffuser 30 is located at the pressure diffuser position, in order to prevent the pressure diffuser plate 32 from blocking the air outlet of the indoor unit, optionally, when the pressure diffuser 30 is located at the pressure diffuser position, the second end of the pressure diffuser plate 32 is arranged at a distance from the air duct wall of the air duct 21 on the side away from the pressure diffuser 30, so that the area between the second end of the pressure diffuser 30 and the air duct wall of the air duct 21 forms a flow area. In this way, the air outlet reliability of the air outlet of the indoor unit is ensured.

[0035] It should be noted that, in the present application, in order to ensure that the transmission shaft 31 can effectively drive the diffuser plate 32 to rotate, optionally, the transmission shaft 31 and the diffuser plate 32 are integrally formed, so as to ensure the rotation reliability of the diffuser plate 32.

[0036] It should be noted that, in the present application, in order to ensure that the transmission shaft 31 can effectively drive the diffuser plate 32 to rotate, the transmission shaft 31 and the diffuser plate 32 are optionally interference fit, so as to ensure the rotation reliability of the diffuser plate 32.

[0037] like Figure 2 As shown, the diffuser 30 further includes a driving unit 33, which is drivingly connected to the transmission shaft 31, and is used to drive the transmission shaft 31 to drive the diffuser plate 32 to rotate at a preset angle. In this way, the driving unit 33 plays a role in providing power to the transmission shaft 31, thereby ensuring the rotation reliability of the diffuser plate 32.

[0038] It should be noted that, in the present application, the first shell 10 and the second shell 22 are connected by a plurality of screws to ensure the reliability of the connection between the two.

[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0040] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An indoor unit, characterized in that: include: A first shell (10), the first shell (10) having a mounting cavity (11), the mounting cavity (11) being used for mounting a fan; a second shell (22), wherein a first end of the second shell (22) is detachably connected to the first shell (10), a second end of the second shell (22) is arranged away from the first shell (10), an air duct (21) communicating with the installation cavity (11) is formed inside the second shell (22), the air duct (21) extends from the first end of the second shell (22) to the second end of the second shell (22), a volute tongue structure (20) is formed at an end of the air duct (21) close to the installation cavity (11), a diffuser (30) is arranged on an inner wall of the air duct (21) away from the installation cavity (11), and the diffuser (30) is movably arranged relative to the second shell (22); The diffuser (30) has an initial position flush with the inner wall of the air duct (21), and the diffuser (30) has a diffuser position protruding from the inner wall surface of the air duct (21) to reduce the flow area of ​​the air duct (21); The diffuser (30) comprises: a diffuser plate (32), wherein when the diffuser portion (30) is located at the initial position, the diffuser plate (32) is flush with the air duct wall of the air duct (21) on the side where the diffuser portion (30) is provided; and when the diffuser portion (30) is located at the diffuser position, the diffuser plate (32) is arranged at an angle with the air duct wall of the air duct (21) on the side where the diffuser portion (30) is provided; When the diffuser (30) is located at the diffuser position, the second end of the diffuser plate (32) is arranged at a distance from an air duct wall of the air duct (21) on a side away from the diffuser (30), so that an area between the second end of the diffuser (30) and the air duct wall of the air duct (21) forms a flow area.

2. The indoor unit according to claim 1, characterized in that: The volute tongue structure (20) comprises: an arc transition section (24), wherein a first end of the arc transition section (24) is connected to a first end of the second shell (22), a second end of the arc transition section (24) is arranged at an angle to the first end of the arc transition section (24), and the second end of the arc transition section (24) is extended away from the diffuser (30); A volute tongue plate segment (23), wherein a first end of the volute tongue plate segment (23) is connected to a second end of the circular arc transition segment (24), and the second end of the volute tongue plate segment (23) is extended away from the circular arc transition segment (24), and a limiting space is formed between the volute tongue plate segment (23) and a cavity wall surface of the installation cavity (11), and the fan is arranged in the limiting space.

3. The indoor unit according to claim 1, characterized in that: The volute tongue structure (20) and the second shell (22) are integrally formed.

4. The indoor unit according to claim 1, characterized in that: The volute tongue structure (20) is made by a plastic molding process.

5. The indoor unit according to claim 1, characterized in that: The connection position between the air duct (21) and the installation cavity (11) is smoothly transitioned, and the connection position between the volute tongue structure (20) and the inner wall of the air duct (21) is smoothly transitioned.

6. The indoor unit according to claim 1, characterized in that: The diffuser (30) comprises: a transmission shaft (31), the transmission shaft (31) being connected to an air duct wall of the air duct (21), the transmission shaft (31) being rotatably arranged relative to the volute tongue structure (20); One end of the pressure diffuser plate (32) is connected to the transmission shaft (31), a second end of the pressure diffuser plate (32) is a free end, and the rotation of the transmission shaft (31) drives the pressure diffuser plate (32) to rotate.

7. The indoor unit according to claim 6, characterized in that: The transmission shaft (31) and the diffuser plate (32) are integrally formed; or, The transmission shaft (31) and the diffuser plate (32) are in interference fit.

8. The indoor unit according to claim 6, characterized in that: The diffuser (30) further comprises: A driving unit (33), the driving unit (33) being drivingly connected to the transmission shaft (31), the driving unit (33) being used to drive the transmission shaft (31) to drive the diffuser plate (32) to rotate at a preset angle.

9. An air conditioner, comprising an indoor unit, characterized in that: The indoor unit is the indoor unit according to any one of claims 1 to 8.

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