Indoor unit and air conditioner

Abstract

The invention provides an indoor unit and an air conditioner, and relates to the technical field of air conditioners. The indoor unit comprises an indoor unit body and an air deflector. The indoor unit body is provided with an air outlet, and a mounting groove is formed in the lower side of the air outlet. The air guide plate comprises an air guide plate body and a connecting shaft arranged on the air guide plate, the connecting shaft is rotatably mounted in the mounting groove, and an air inlet gap is formed between the side wall of the connecting shaft and the side wall of the mounting groove. When air is supplied outwards from the air outlet, air outside the indoor unit can flow to the air outlet from the air inlet gap so as to be mixed with air supplied by the air outlet. Under the condition that the heat exchange effect is not affected, the temperature difference between air sent out by the indoor unit and the indoor temperature can be reduced, and therefore the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and more particularly, to an indoor unit and an air conditioner. Background Art

[0002] The indoor unit blows air into the room through the air outlet. In the cooling or heating mode, there is a large temperature difference between the cold or hot air blown out from the air outlet and the indoor temperature. When the air from the air outlet blows directly on the user, it affects the user experience. Summary of the Invention

[0003] The purpose of the present invention is to provide an indoor unit and an air conditioner, which can reduce the temperature difference between the air sent out by the indoor unit and the indoor temperature without affecting the heat exchange effect, thereby improving the user experience.

[0004] The embodiments of the present invention are implemented as follows:

[0005] In a first aspect, the present invention provides an indoor unit, including an indoor unit body and a wind deflector;

[0006] The indoor unit body is provided with an air outlet, and an installation groove is arranged below the air outlet.

[0007] The wind deflector includes a wind deflector body and a connecting shaft arranged on the wind deflector body. The connecting shaft is rotatably installed in the installation groove, and an air inlet gap is formed between the side wall of the connecting shaft and the side wall of the installation groove;

[0008] When the air outlet blows air outwards, the air outside the indoor unit can flow from the air inlet gap to the air outlet to be mixed with the air sent out by the air outlet.

[0009] In this embodiment, an air inlet gap is formed between the connecting shaft of the air deflector door and the installation groove of the middle frame. When the air outlet blows air outwards, a relatively large flow rate forms a negative pressure, sucking the indoor air through the air inlet gap and then mixing it with the air sent out by the air outlet, thereby changing the temperature. As a result, the temperature of the air blowing directly on the user is not much different from the indoor temperature, thus improving the user experience. For example, when the indoor unit is in the cooling mode and the air sent out by the air outlet is 19 degrees Celsius, while the indoor temperature is 21 degrees Celsius, the indoor air enters through the air inlet gap and is mixed with the air sent out by the air outlet, so that the temperature of the air sent out is about 20 degrees Celsius, thereby reducing the temperature difference and providing a better user experience. Secondly, since it is all in heat exchange with the indoor air, it will not affect the heat exchange efficiency of the air conditioner.

[0010] In an alternative embodiment, the connecting shaft is a flat shaft. When the wind deflector is in the open state, the air inlet gap gradually increases from the outside of the indoor unit towards the inside of the indoor unit.

[0011] In this application, the air inlet gap is set to gradually increase from the outside of the indoor unit towards the inside of the indoor unit. This will reduce the wind resistance, making it more conducive for outdoor air to flow into the indoor unit through the air inlet gap and mix with the air sent out from the air outlet, thereby narrowing the temperature difference.

[0012] In an alternative embodiment, in the circumferential direction of the connecting shaft, the connecting shaft has a wind guiding surface, a wind attracting surface, and a windward surface connected in sequence;

[0013] The windward surface is located outside the connecting shaft, and one side of the windward surface is connected to the outer surface of the air deflector body;

[0014] The wind guiding surface is located inside the connecting shaft, and one side of the wind guiding surface is connected to the inner surface of the air deflector body. The air sent out from the air outlet can blow on the wind guiding surface;

[0015] One side of the wind attracting surface is connected to the wind guiding surface, and the other side is connected to the windward surface. When the air deflector is in the open state, the air inlet gap is formed between the wind attracting surface and the side wall of the installation groove;

[0016] The distance between the wind attracting surface and the center of rotation of the connecting shaft gradually decreases in the direction from the windward surface towards the wind guiding surface.

[0017] In this application, the connecting shaft has a circumferential wind guiding surface, a wind attracting surface, and a windward surface, and the air sent out from the air outlet can blow on the wind guiding surface. As a result, the distance between the wind attracting surface and the center of rotation of the connecting shaft gradually decreases in the direction from the windward surface towards the wind guiding surface. In this way, the upper region of the plane formed by the connection line between the lower side of the air outlet and the wind guiding surface is the flow path of the air sent out from the air outlet, and a greater negative pressure and reduced wind resistance will be formed in the air inlet gap below the plane formed by the connection line between the lower side of the air outlet and the wind guiding surface, allowing more external air to flow in. The air flowing in through the air inlet gap and the air sent out from the air outlet will flow and mix on the wind guiding surface and then flow out along the inner side wall of the air deflector door. This will make the air mixing more uniform.

[0018] In an alternative embodiment, the wind attracting surface includes a first arc surface, a second arc surface, and a third arc surface;

[0019] The first arc surface, the second arc surface, and the third arc surface are connected in sequence. One side of the first arc surface away from the second arc surface is connected to the windward surface, and one side of the third arc surface away from the second arc surface is connected to the second arc surface;

[0020] The radius of the third arc surface is greater than that of the first arc surface, the radius of the second arc surface is less than that of the first arc surface, and the second arc surface is internally tangent to the first arc surface and the second arc surface, and the first arc surface, the second arc surface, and the third arc surface are all convex arc surfaces facing the outside.

[0021] The air guiding surface is set as three arc surfaces with different radii, and the second arc surface is tangent to the first arc surface and the second arc surface, so that the air guiding surface has a smoother transition, thereby reducing air resistance.

[0022] In an alternative embodiment, the distance between the air guiding surface and the center of rotation of the connecting shaft gradually increases in a direction away from the air guiding surface.

[0023] Such a setting makes the radian change gentle, so that the incoming air gap and the air sent out from the air outlet face the air guiding surface in a counterflow manner, so that their mixing is more uniform.

[0024] In an alternative embodiment, the air guiding surface includes a fourth arc surface and a fifth arc surface. One side of the fourth arc surface is connected to the side of the third arc surface away from the second arc surface, the other side of the fourth arc surface is connected to the fifth arc surface, the fourth arc surface is a convex arc surface, the fifth arc surface is a concave arc surface, and the fifth arc surface is externally tangent to the fourth arc surface and the inner surface of the air guiding plate body.

[0025] In this application, by setting the air guiding surface as the fourth arc surface and the fifth arc surface, a smooth transition can be made between the connecting shaft and the air guiding plate body, and the air sent out from the air outlet and the air sent out from the incoming air gap can be mixed on both sides of the fourth arc surface and the fifth arc surface.

[0026] In an alternative embodiment, the axis of the fourth arc surface coincides with that of the third arc surface and has the same radius, and the plane passing through the axis of the third arc surface and the axis of the connecting shaft is a preset plane;

[0027] The intersection line of the preset plane and the third arc surface is the connection part between the third arc surface and the fourth arc surface.

[0028] Since the intersection line of the plane passing through the axis of the third arc surface and the axis of rotation of the connecting shaft and the third arc surface is the connection part between the third arc surface and the fourth arc surface. The connection part between the third arc surface and the fourth arc surface, that is, the connection part between the air guiding surface and the air guiding surface, is the highest point inside the connecting shaft. In this way, the air flowing through the incoming air gap will flow out along the tangent line of the connection part, and the air from the air outlet will blow on the fourth arc surface, so that the two will form a counterflow, making the mixing more uniform.

[0029] In an alternative embodiment, the windward surface is an arc surface, and the windward surface is connected to the first arc surface.

[0030] This can achieve a smooth transition, and when the air deflector is closed, the air inlet gap can be made smaller to prevent dust from entering the indoor unit.

[0031] In an alternative embodiment, the side wall of the installation groove is an arc surface, and the axis of the side wall of the installation groove coincides with the axis of the rotation center of the connecting shaft. The radius of the side wall of the installation groove is greater than the radius of the leeward surface; and / or,

[0032] The indoor unit further includes a volute provided on the indoor unit body. The volute is provided with an air duct, and the air duct communicates with the air outlet;

[0033] The extension surface of the volute located on the outer side wall of the air duct intersects with the fourth arc surface.

[0034] In this application, the extension surface of the volute located on the outer side wall of the air duct intersects with the fourth arc surface, so that two airflows in different directions can form a countercurrent, thereby making their mixing more uniform.

[0035] In a second aspect, the present invention provides an air conditioner, including an outdoor unit and the indoor unit according to any one of the foregoing embodiments. The outdoor unit can be connected to the indoor unit through a heat exchange pipeline to achieve heat exchange.

[0036] The indoor unit further includes a driving assembly, which is installed on the indoor unit body and is connected to the air deflector to drive the air deflector to rotate.

[0037] In the air conditioner provided in this application, an air inlet gap is formed between the connecting shaft of the air deflector and the installation groove of the middle frame. When the air is sent out from the air outlet, the flow rate is relatively large, forming a negative pressure, sucking the indoor air through the air inlet gap and then mixing it with the air sent out from the air outlet, thereby changing the temperature, so that the temperature of the air directly blowing to the user is not much different from the indoor temperature, thus improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1 It is a schematic cross-sectional structure diagram of the indoor unit provided by the embodiment of the present invention;

[0040] Figure 2 For Figure 1 A schematic diagram of the air flow direction at position A in

[0041] Figure 3 is Figure 1 The enlarged schematic view of part A in

[0042] Figure 4 This is a schematic diagram of the connecting shaft of the indoor unit provided by the embodiment of the present invention.

[0043] Icons: 100 - indoor unit; 110 - indoor unit body; 111 - air outlet; 113 - installation groove; 120 - air inlet gap; 130 - air deflector; 131 - air deflector body; 133 - connecting shaft; 135 - air guiding surface; 137 - air attracting surface; 139 - leeward surface; 141 - first arc surface; 143 - second arc surface; 145 - third arc surface; 147 - fourth arc surface; 149 - fifth arc surface; 151 - connection point; 170 - volute; 171 - air duct; 173 - extended surface. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the scope of protection of the present invention.

[0046] It should be noted that: like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0048] In addition, terms such as "horizontal" and "vertical" do not require the components to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0049] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] Embodiment

[0051] Please refer to Figure 1 and Figure 2 , this embodiment provides an air conditioner, which includes an outdoor unit and an indoor unit 100. The outdoor unit can be connected to the indoor unit 100 through a heat exchange pipeline to achieve heat exchange.

[0052] The inventor found that the indoor unit 100 can send air into the room through the air outlet 111. In the cooling or heating mode, there is a large temperature difference between the cold or hot air blown out from the air outlet 111 and the indoor temperature. When the air from the air outlet 111 blows directly on the user, it affects the user experience.

[0053] To solve the above problems, this embodiment provides an indoor unit 100, which can reduce the temperature difference between the air sent out by the indoor unit 100 and the indoor temperature without affecting the heat exchange effect, thereby improving the user experience.

[0054] Please refer to Figure 1 and Figure 2 , in this embodiment, the indoor unit 100 includes an indoor unit body 110 and a wind deflector 130. The indoor unit body 110 is provided with an air outlet 111, and an installation groove 113 is arranged below the air outlet 111. The wind deflector 130 includes a wind deflector body 131 and a connecting shaft 133 arranged on the wind deflector body 131. The connecting shaft 133 is rotatably installed in the installation groove 113, and an air inlet gap 120 is formed between the side wall of the connecting shaft 133 and the side wall of the installation groove 113. When the air outlet 111 sends out air, the air outside the indoor unit 100 can flow from the air inlet gap 120 to the air outlet 111 to be mixed with the air sent out by the air outlet 111.

[0055] In this embodiment, an air inlet gap 120 is formed between the connecting shaft 133 of the air deflector and the installation groove 113 of the middle frame. When the air flows out from the air outlet 111 at a relatively high speed, a negative pressure is formed, sucking the indoor air through the air inlet gap 120 and mixing it with the air sent out from the air outlet 111, thereby changing the temperature. This makes the temperature of the air directly blowing to the user not much different from the indoor temperature, thus improving the user experience. For example, when the indoor unit 100 is in the cooling mode, the air sent out from the air outlet 111 is 19 °C, and the indoor temperature is 21 °C. The indoor air enters through the air inlet gap 120 and is mixed with the air sent out from the air outlet 111, so that the temperature of the air sent out is about 20 °C, reducing the temperature difference and providing a better user experience. Secondly, since it is all in heat exchange with the indoor air, it will not affect the heat exchange efficiency of the air conditioner.

[0056] Please refer to Figure 1 and Figure 2 , in this embodiment, the connecting shaft 133 is a flat shaft. When the air deflector 130 is in the open state, the air inlet gap 120 gradually increases from the outside of the indoor unit 100 towards the inside of the indoor unit 100.

[0057] In this embodiment, the connecting shaft 133 is set as a flat shaft, so that when the air deflector 130 is opened, the air inlet gap 120 will gradually increase from the outside of the indoor unit 100 towards the inside of the indoor unit 100. This will reduce the wind resistance, making it more conducive for the outdoor air to flow in through the air inlet gap 120 and mix with the air sent out from the air outlet 111, thereby reducing the temperature difference.

[0058] Please refer to Figure 2 , Figure 3 and Figure 4 , in this embodiment, in the circumferential direction of the connecting shaft 133, the connecting shaft 133 has a guide wind surface 135, a wind guiding surface 137 and a windward surface 139 connected in sequence; the windward surface 139 is located on the outside of the connecting shaft 133, and one side of the windward surface 139 is connected to the outer surface of the air deflector body 131. The guide wind surface 135 is located on the inside of the connecting shaft 133, and one side of the guide wind surface 135 is connected to the inner surface of the air deflector body 131. The air sent out from the air outlet 111 can blow on the guide wind surface 135. One side of the wind guiding surface 137 is connected to the guide wind surface 135, and the other side is connected to the windward surface 139. When the air deflector is in the open state, the air inlet gap 120 is formed between the wind guiding surface 137 and the side wall of the installation groove 113. The distance between the wind guiding surface 137 and the rotation center of the connecting shaft 133 gradually decreases in the direction from the windward surface 139 towards the guide wind surface 135.

[0059] In this embodiment, the circumferential direction of the connecting shaft 133 is set as the air guiding surface 135, the air attracting surface 137, and the windward surface 139. The air sent from the air outlet 111 can blow on the air guiding surface 135, so that the distance between the air attracting surface 137 and the rotation center of the connecting shaft 133 gradually decreases in the direction of the windward surface 139 towards the air guiding surface 135. In this way, the upper region of the plane where the connection line between the lower side of the air outlet 111 and the air guiding surface 135 is located is the flow path of the air sent from the air outlet 111, and a larger negative pressure area will be formed in the air inlet gap 120 below the plane where the connection line between the lower side of the air outlet 111 and the air guiding surface 135 is located, and the opening is larger, so that more external air can flow in. The air flowing in from the air inlet gap 120 and the air sent from the air outlet 111 will flow and mix on the air guiding surface 135 and then flow out along the inner side wall of the air guiding door. This will make the air mix more evenly.

[0060] Please refer to Figure 2 、 Figure 3 and Figure 4 , in this embodiment, the air attracting surface 137 includes a first arc surface 141, a second arc surface 143, and a third arc surface 145. The first arc surface 141, the second arc surface 143, and the third arc surface 145 are connected in sequence, and the side of the first arc surface 141 away from the second arc surface 143 is connected to the windward surface 139, and the side of the third arc surface 145 away from the second arc surface 143 is connected to the second arc surface 143. The radius of the third arc surface 145 is greater than the radius of the first arc surface 141, the radius of the second arc surface 143 is less than the radius of the first arc surface 141, and the second arc surface 143 is internally tangent to the first arc surface 141 and the second arc surface 143, and the first arc surface 141, the second arc surface 143, and the third arc surface 145 are all convex arc surfaces towards the outside.

[0061] In this embodiment, the air attracting surface 137 is set as three arc surfaces with different radii, and the second arc surface is tangent to the first arc surface 141 and the second arc surface, so that the air attracting surface 137 has a smoother transition, thereby reducing wind resistance.

[0062] In some other embodiments of the present application, the air attracting surface 137 can also be formed by sweeping with a spline curve such as an asymptote. As long as it can satisfy that the air inlet gap 120 gradually increases from the outside to the inside.

[0063] In this embodiment, the distance between the air guiding surface 135 and the rotation center of the connecting shaft 133 gradually increases in the direction away from the air attracting surface 137.

[0064] This setting in this embodiment can smoothly send the air sent from the air outlet 111 to the air guiding plate body 131. On the other hand, it can make the air sent from the air outlet 111 and the air entering from the air inlet gap 120 mix more evenly.

[0065] Please refer to Figure 2 、Figure 3 and Figure 4 In this embodiment, the air guiding surface 135 includes a fourth arc surface 147 and a fifth arc surface 149. One side of the fourth arc surface 147 is connected to the third arc surface, and the other side of the fourth arc surface 147 is connected to the fifth arc surface 149. The fourth arc surface 147 is a convex arc surface, and the fifth arc surface 149 is a concave arc surface. The fifth arc surface 149 is connected to the fourth arc surface 147 and the inner surface of the air guiding plate body 131, generally with an arc transition connection.

[0066] In this embodiment, by setting the air guiding surface 135 as the fourth arc surface and the fifth arc surface 149, a smooth transition can be achieved between the connecting shaft 133 and the air guiding plate body 131, and the air sent from the air outlet 111 and the air sent from the air inlet gap 120 can be mixed on both sides at the fourth arc surface and the fifth arc surface 149.

[0067] In this embodiment, the axis of the fourth arc surface 147 coincides with the axis of the third arc surface 145 and has the same radius. The plane passing through the axis of the third arc surface 145 and the axis of the connecting shaft 133 is a preset plane (as Figure 4 indicated by the guide dotted line is the preset plane). The intersection line of the preset plane and the third arc surface 145 is the connection part 151 between the third arc surface 145 and the fourth arc surface 147.

[0068] Since the intersection line of the plane passing through the axis of the third arc surface 145 and the return axis of the connecting shaft 133 and the third arc surface 145 is the connection part 151 between the third arc surface 145 and the fourth arc surface 147. Taking the connection part 151 between the third arc surface and the fourth arc surface, that is, the connection part 151 between the air guiding surface 135 and the air guiding surface 137 as the highest point inside the connecting shaft 133, the air flowing through the air inlet gap 120 will flow out along the tangent line of the connection part 151, and the air from the air outlet 111 will blow on the fourth arc surface 147, so that the two will form a counterflow, thus making the mixing more uniform.

[0069] Please refer to Figure 2 、 Figure 3 and Figure 4 In this embodiment, the leeward surface 139 is an arc surface, and the leeward surface 139 is internally tangent to the first arc surface 141. In this way, a smooth transition can be achieved, and when the air guiding door is closed, the air inlet gap 120 can be made smaller to prevent dust from entering the indoor unit 100.

[0070] In this embodiment, the side wall of the installation groove 113 is an arc surface, and the axis of the side wall of the installation groove 113 coincides with the axis of the rotation center of the connecting shaft 133. The radius of the side wall of the installation groove 113 is greater than the radius of the leeward surface 139. This can facilitate opening and closing.

[0071] In this embodiment, the indoor unit 100 further includes a volute 170 disposed within the indoor unit body 110. The volute 170 is provided with an air duct 171 that communicates with the air outlet 111;

[0072] An extension surface 173 of the volute 170 located on the outer sidewall of the air duct 171 intersects with the fourth arc surface 147.

[0073] In this embodiment, the extension surface 173 of the volute 170 located on the outer sidewall of the air duct 171 intersects with the fourth arc surface 147, so that two winds in different directions can form a counterflow, thereby making their mixing more uniform.

[0074] In this embodiment, the indoor unit 100 further includes a drive assembly. The drive assembly is installed on the indoor unit body 110 and is connected to the air deflector 130 to drive the air deflector 130 to rotate.

[0075] In summary, the working principles and beneficial effects of the indoor unit 100 and the air conditioner provided in this embodiment include:

[0076] In this embodiment, an air inlet gap 120 is formed between the connecting shaft 133 of the air deflector door and the installation groove 113 of the middle frame. When the air outlet 111 sends out air at a relatively high flow rate, a negative pressure is formed, and indoor air is sucked in through the air inlet gap 120 and then mixed with the air sent out by the air outlet 111, thereby changing the temperature, so that the temperature of the air directly blowing on the user is not much different from the indoor temperature, thereby improving the user experience. For example, when the indoor unit 100 is cooling, the air sent out by the air outlet 111 is 19 degrees Celsius, and the indoor temperature is 21 degrees Celsius. The indoor air enters through the air inlet gap 120 and is mixed with the air sent out by the air outlet 111, so that the temperature of the air sent out is about 20 degrees Celsius, thereby reducing the temperature difference and providing a better user experience. Secondly, heat exchange is carried out with indoor air, which will not affect the heat exchange efficiency of the air conditioner.

[0077] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An indoor unit, characterized in that, It includes an indoor unit body (110) and a wind deflector (130); The indoor unit body (110) is provided with an air outlet (111), and an installation groove (113) is provided on the lower side of the air outlet (111); The wind deflector (130) includes a wind deflector body (131) and a connecting shaft (133) provided on the wind deflector body (131). The connecting shaft (133) is rotatably installed in the installation groove (113), and an air inlet gap (120) is formed between the side wall of the connecting shaft (133) and the side wall of the installation groove (113); When the air outlet (111) sends out air, the air outside the indoor unit can flow from the air inlet gap to the air outlet (111) to be mixed with the air sent out by the air outlet (111).

2. The indoor unit according to claim 1, characterized in that, The connecting shaft (133) is a flat shaft. When the wind deflector (130) is in the open state, the air inlet gap (120) gradually increases from the outside of the indoor unit towards the inside of the indoor unit.

3. The indoor unit according to claim 1 or 2, characterized in that, In the circumferential direction of the connecting shaft (133), the connecting shaft (133) has a wind guiding surface (135), a wind attracting surface (137) and a windward surface (139) connected in sequence; The windward surface (139) is located outside the connecting shaft (133), and one side of the windward surface (139) is connected to the outer surface of the wind deflector body (131); The wind guiding surface (135) is located inside the connecting shaft (133), and one side of the wind guiding surface (135) is connected to the inner surface of the wind deflector body (131). The air sent out by the air outlet (111) can blow on the wind guiding surface (135); One side of the wind attracting surface (137) is connected to the wind guiding surface (135), and the other side is connected to the windward surface (139). When the wind deflector is in the open state, the air inlet gap (120) is formed between the wind attracting surface (137) and the side wall of the installation groove (113); The distance between the wind attracting surface (137) and the rotation center of the connecting shaft (133) gradually decreases in the direction from the windward surface (139) towards the wind guiding surface (135).

4. The indoor unit according to claim 3, characterized in that, The wind attracting surface (137) includes a first arc surface (141), a second arc surface (143) and a third arc surface (145); The first arc surface (141), the second arc surface (143) and the third arc surface (145) are connected in sequence. The side of the first arc surface (141) away from the second arc surface (143) is connected to the windward surface (139), and the side of the third arc surface (145) away from the second arc surface (143) is connected to the second arc surface (143); The radius of the third arc surface (145) is greater than the radius of the first arc surface (141), and the radius of the second arc surface (143) is less than the radius of the first arc surface (141); and the second arc surface (143) is internally tangent to the first arc surface (141) and the second arc surface (143), and the first arc surface (141), the second arc surface (143), and the third arc surface (145) are all convex arc surfaces facing the outside.

5. The indoor unit according to claim 4, characterized in that The distance from the air guiding surface (135) to the center of rotation of the connecting shaft (133) gradually increases in the direction away from the air guiding surface.

6. The indoor unit according to claim 4, characterized in that The air guiding surface (135) includes a fourth arc surface (147) and a fifth arc surface (149). One side of the fourth arc surface (147) is connected to the third arc surface (145), and the other side of the fourth arc surface (147) is connected to the fifth arc surface (149). The fourth arc surface (147) is a convex arc surface, the fifth arc surface (149) is a concave arc surface, and the fifth arc surface (149) is externally tangent to the fourth arc surface (147) and the inner surface of the air guiding plate body (131).

7. The indoor unit according to claim 6, characterized in that, The axis of the fourth arc surface (147) coincides with the axis of the third arc surface (145) and they have the same radius. The plane passing through the axis of the third arc surface (145) and the axis of the connecting shaft (133) is a preset plane. The intersection line of the preset plane and the third arc surface (145) is the connection part (151) between the third arc surface (145) and the fourth arc surface (147).

8. The indoor unit according to claim 4, wherein The windward surface (139) is an arc surface, and the windward surface (139) is connected to the first arc surface (141).

9. The indoor unit according to claim 6, characterized in that, The side wall of the installation groove (113) is an arc surface, and the axis of the side wall of the installation groove (113) coincides with the axis of the center of rotation of the connecting shaft (133). The radius of the side wall of the installation groove (113) is greater than the radius of the windward surface (139); and / or The indoor unit further includes a volute (170) disposed inside the indoor unit body (110). The volute (170) is provided with an air duct (171), and the air duct (171) is communicated with the air outlet (111). The extension surface (173) of the volute (170) located on the outer side wall of the air duct (171) intersects with the fourth arc surface (147).

10. An air conditioner, characterized in that, It includes an outdoor unit and the indoor unit according to any one of claims 1-9. The outdoor unit can be connected to the indoor unit through a heat exchange pipeline to achieve heat exchange. The indoor unit further includes a driving assembly. The driving assembly is installed on the indoor unit body (110) and is connected to the air guiding plate (130) to drive the air guiding plate (130) to rotate.

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