Indoor unit and air conditioner

Abstract

The embodiment of the invention provides an indoor unit and an air conditioner, and relates to the field of air conditioners. The indoor unit comprises a base, a middle frame, a driving assembly and an air guide plate. The middle frame is installed on the base, the base and the middle frame are provided with an air channel, and the middle frame is provided with an air outlet communicated with the air channel. A driving assembly mounting cavity is formed in one side of the middle frame, and a penetrating hole communicating with the air outlet is formed in the side wall of the mounting cavity. The driving assembly is installed in the installation cavity, and a transmission shaft of the driving assembly extends out through the penetrating hole. The air deflector is provided with an air outlet and connected with a transmission shaft of the driving assembly. The side, close to the penetrating hole, of the air guide plate is provided with a shielding rib corresponding to the penetrating hole, and the shielding rib can shield the gap between the transmission shaft of the driving assembly and the penetrating hole. The problem that air at the air outlet enters the mounting cavity through the penetrating hole can be solved, and then the problem that condensation is formed in the mounting cavity is solved.

Description

Technical Field

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

[0002] With the development of air conditioning technology, the original single air deflector and its driving structure can no longer meet the requirements of current air conditioners. In the prior art, in order to achieve an ultra-wide air supply angle, a design of double motors driving double air deflectors is adopted. When the two air deflectors are closed, a large air deflector is used to hide the small air deflector inside to meet the aesthetic requirements.

[0003] In order to achieve the above functions, in the prior art, an independent installation cavity is generally provided between the base and the middle frame to install the air deflector driving component, and a through hole is provided on the side wall of the air outlet so that the driving shaft of the driving component extends out and is inserted into the rotating shaft of the air deflector to drive the air deflector to rotate.

[0004] However, when the indoor unit blows cold air, the air at the air outlet flows into the installation cavity through the gap between the side wall of the through hole and the driving shaft. Inside the installation cavity, cold and hot air meet to form condensation. If the condensation cannot be dried in time, problems such as rusting of metal parts will occur. Summary of the Invention

[0005] The objectives of the present invention include, for example, providing an indoor unit and an air conditioner that can improve the problem of air at the air outlet entering the installation cavity through the through hole, and further improve the problem of condensation formed in the installation cavity.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides an indoor unit, including a base, a middle frame, a driving component, and an air deflector;

[0008] The middle frame is installed on the base. The base and the middle frame are provided with an air duct, and the middle frame is provided with an air outlet communicating with the air duct;

[0009] On one side of the middle frame, a driving component installation cavity is provided, and a through hole communicating with the air outlet is provided on the side wall of the installation cavity;

[0010] The driving component is installed in the installation cavity, and the transmission shaft of the driving component extends out through the through hole;

[0011] The air deflector is installed at the air outlet and is connected to the transmission shaft of the driving component;

[0012] On the side of the air deflector close to the through hole, a shielding rib is provided corresponding to the through hole, and the shielding rib can shield the gap between the transmission shaft of the driving component and the through hole.

[0013] In the present application, a shielding rib is provided on one side of the air deflector close to the through hole, and the shielding rib is used to shield the gap between the transmission shaft of the driving component and the through hole, so that the air flowing out of the air outlet will not flow into the installation cavity through the through hole, thereby avoiding the problem of condensation formed by the confluence of cold and hot air in the installation cavity. Especially when the air conditioner is in the cooling mode, the cold air sent out from the air outlet will not enter the installation cavity and confluence with the hot air generated by the operation of the driving component to form condensation.

[0014] In an alternative embodiment, the air deflector includes an air deflector body and a rotating shaft connected to the air deflector body. An installation seat is provided at the end of the rotating shaft, and the installation seat is connected to the transmission shaft of the driving component;

[0015] The shielding rib is arranged on the outer peripheral edge of the installation seat and is connected to the inner side of the air deflector body.

[0016] In the present application, the installation seat is provided to facilitate the installation of the air deflector. By arranging the shielding rib on the outer peripheral edge of the installation seat, after the installation seat is installed on the connecting shaft, the shielding rib can block the outside of the gap of the through hole, thereby shielding the air sent out from the air outlet. And the structure is simple and easy to manufacture.

[0017] In an alternative embodiment, the outer contour of the shielding rib is arc-shaped and is coaxial with the rotating shaft;

[0018] The radius of the shielding rib is greater than the radius of the through hole.

[0019] In the present application, the outer contour of the wind shielding rib is set to be arc-shaped, so that during the rotation of the air deflector, the gap between the through hole and the connecting shaft can always be shielded.

[0020] In an alternative embodiment, the difference between the radius of the shielding rib and the radius of the through hole is greater than 1 mm.

[0021] In the present application, the difference in radius is set to be greater than 1 mm, so that a better shielding effect can be achieved.

[0022] In an alternative embodiment, a ring-shaped boss protrudes from the end face of the installation seat;

[0023] An arc-shaped sealing platform protrudes outward from the outer peripheral edge of the through hole;

[0024] The ring-shaped boss is rotatably inserted into the arc-shaped sealing platform.

[0025] In this application, an annular boss is provided at the end of the mounting base, and an arc-shaped sealing platform is provided on the outer peripheral edge of the through hole. In this way, the annular boss can be inserted between the through hole and the connecting shaft and lap with the arc-shaped sealing platform, so as to reduce the gap and form a further shield, thereby better blocking the wind.

[0026] In this embodiment, the arc-shaped sealing platform is arranged on the upper peripheral edge of the through hole.

[0027] Arranging the arc-shaped sealing platform on the upper peripheral edge of the through hole can not only block the wind sent out by the air outlet, but also facilitate the connection between the connecting shaft and the mounting base, and the annular boss can be installed on the arc-shaped sealing platform through the lower opening.

[0028] In an alternative embodiment, the gap between the annular boss and the sealing platform is less than 0.5 mm.

[0029] In this application, the gap between the annular boss and the sealing platform is set to be less than 0.5 mm, so that sealing can be achieved while ensuring convenient assembly.

[0030] In an alternative embodiment, the outer diameter of the annular boss gradually decreases towards the end.

[0031] In this application, the outer diameter of the annular boss is set to gradually shrink towards the end, which is convenient for installation.

[0032] In an alternative embodiment, the air deflector body includes an inner plate and an outer plate;

[0033] The rotating shaft part includes an inner rotating shaft part and the outer rotating shaft part;

[0034] The inner rotating shaft part is connected to the inner plate, and the outer rotating shaft part is connected to the outer plate;

[0035] The mounting base is arranged at the end of the inner rotating shaft part;

[0036] A sealing rib protrudes from the inner peripheral edge of the outer plate;

[0037] The inner plate is assembled to the outer plate, the sealing rib abuts against the inner plate, and the inner rotating shaft part is assembled to the outer rotating shaft part;

[0038] A wind blocking rib that cooperates with the mounting base protrudes from the inner side of the outer rotating shaft part.

[0039] In this application, by providing a wind blocking rib on the inner side of the outer rotating shaft part, it can cooperate with the mounting base to block the wind, thereby preventing external wind from flowing into the rotating shaft and forming condensation inside the rotating shaft.

[0040] In a second aspect, the present invention provides an air conditioner, which includes an outdoor unit and the indoor unit according to any one of the foregoing embodiments.

[0041] The air conditioner provided by the present application is provided with a shielding rib on one side of the air deflector close to the through hole, and the shielding rib is used to shield the gap between the transmission shaft of the driving component and the through hole, so that the air flowing out of the air outlet will not flow into the installation cavity through the through hole, thereby avoiding the problem of condensation formed by the confluence of cold and hot air in the installation cavity. Especially when the air conditioner is in the cooling mode, the cold air sent out from the air outlet will not enter the installation cavity and confluence with the hot air generated by the operation of the driving component to form condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] 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, without creative efforts, other related drawings can also be obtained based on these drawings.

[0043] Figure 1 It is a schematic structural diagram of an indoor unit provided by an embodiment of the present invention;

[0044] Figure 2 is Figure 1 an enlarged schematic diagram at A in

[0045] Figure 3 It is a partial cross-sectional structural diagram of an indoor unit provided by an embodiment of the present invention;

[0046] Figure 4 It is a partial structural diagram of the air deflector of an indoor unit provided by an embodiment of the present invention;

[0047] Figure 5 It is a partial structural diagram of the through hole of an indoor unit provided by an embodiment of the present invention;

[0048] Figure 6 It is an exploded structural diagram of the air deflector door of an indoor unit provided by an embodiment of the present invention;

[0049] Figure 7 is Figure 6 an enlarged schematic diagram at B in

[0050] Icons: 100 - indoor unit; 110 - base; 111 - air duct; 130 - middle frame; 131 - air outlet; 133 - installation cavity; 135 - through hole; 137 - arc-shaped sealing platform; 150 - drive assembly; 151 - reduction motor; 153 - transmission box; 155 - gear set; 157 - transmission shaft; 159 - spring; 170 - air deflector; 171 - shielding rib; 173 - air deflector body; 175 - rotating shaft; 177 - mounting seat; 178 - annular boss; 179 - inner plate; 181 - outer plate; 183 - inner rotating shaft part; 185 - outer rotating shaft part; 187 - sealing rib; 189 - wind shielding rib. Detailed implementation manners

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, 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 in the accompanying drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying 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 creative efforts fall within the scope of protection of the present invention.

[0053] It should be noted that: Similar reference numerals and letters denote similar 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.

[0054] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed when in 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 therefore cannot be construed as a limitation of the present invention.

[0055] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0056] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0057] Please refer to Figure 1, the present invention provides an air conditioner, which includes an outdoor unit and an indoor unit 100. The outdoor unit and the indoor unit 100 are connected by pipes for refrigerant circulation.

[0058] Please refer to Figure 1 , Figure 2 and Figure 3 , in this embodiment, the indoor unit 100 includes a base 110, a middle frame 130, a driving component 150 and a wind deflector 170. The middle frame 130 is installed on the base 110. The base 110 and the middle frame 130 are provided with an air duct 111, and the middle frame 130 is provided with an air outlet 131 communicating with the air duct 111. Generally, the air that has exchanged heat with the heat exchanger inside the indoor unit 100 is sent out from the air outlet 131. One side of the middle frame 130 is provided with an installation cavity 133, and a through hole 135 communicating with the air outlet 131 is provided on the side wall of the installation cavity 133. The driving component 150 is installed in the installation cavity 133, and the transmission shaft 157 of the driving component 150 extends out through the through hole 135. The wind deflector 170 is installed at the air outlet 131 and is connected to the transmission shaft 157 of the driving component 150. The driving component 150 can drive the wind deflector 170 to rotate. A shielding rib 171 is correspondingly provided at the side of the wind deflector 170 close to the through hole 135, and the shielding rib 171 can shield the gap between the transmission shaft 157 of the driving component 150 and the through hole 135.

[0059] Please refer to Figure 1 , Figure 2 and Figure 3 , in this embodiment, by providing the shielding rib 171 on the side of the wind deflector 170 close to the through hole 135, the shielding rib 171 is used to shield the gap between the transmission shaft 157 of the driving component 150 and the through hole 135, so that the air flowing out from the air outlet 131 will not flow into the installation cavity 133 through the through hole 135, thus avoiding the problem of condensation formed by the confluence of hot and cold air in the installation cavity 133. Especially when the air conditioner is in the cooling mode, the cold air sent out from the air outlet 131 will not enter the installation cavity 133 and confluence with the hot air generated by the operation of the driving component 150 to form condensation.

[0060] Please refer to Figure 3 , Figure 4 and Figure 5 , in this embodiment, the wind deflector 170 includes a wind deflector body 173 and a rotating shaft 175 connected to the wind deflector body 173. An installation seat 177 is provided at the end of the rotating shaft 175, and the installation seat 177 is connected to the transmission shaft 157 of the driving component 150. The shielding rib 171 is provided on the outer peripheral edge of the installation seat 177 and is connected to the inner side of the wind deflector body 173.

[0061] In this embodiment, the installation of the air deflector 170 can be conveniently achieved by setting the mounting seat 177. The shielding rib 171 is arranged on the outer peripheral edge of the mounting seat 177. After the mounting seat 177 is mounted on the connecting shaft, the shielding rib 171 can block the outside of the gap of the through hole 135, thereby blocking the air sent out from the air outlet 131. And the structure is simple and convenient for manufacturing.

[0062] Further, the driving assembly 150 includes a reduction motor 151, a transmission box 153, a gear set 155, and a transmission shaft 157. The gear set 155 is installed in the transmission box 153. The reduction motor 151 is installed in the gear box and is in gear transmission connection with the gear installed in the gear box. The transmission shaft 157 is installed in the transmission box 153 and is in gear transmission with the gears of the gear set 155. The other end of the transmission shaft 157 extends out of the gear box. Thus, by the rotation of the reduction motor 151, the rotation of the connecting shaft is driven by using the gear set 155 as a transmission. After the driving assembly 150 is installed in the installation cavity 133, the transmission shaft 157 extends into the air outlet 131 through the through hole 135. Installing the mounting seat 177 on the transmission shaft 157 can achieve the driving assembly 150 driving the rotation of the air deflector door.

[0063] Please refer to Figure 3 、 Figure 4 and Figure 5 In this embodiment, the connecting shaft is floatingly installed in the transmission box 153 through a spring 159. By applying a reverse force, the connecting shaft can be retracted into the transmission box 153, and when the transmission box 153 is released, it will pop out under the action of the spring 159. The shape of the connecting shaft is polygonal, and corresponding polygonal holes are provided on the mounting seat 177. When installing the air deflector door, first press to retract the connecting shaft, then install the air deflector door so that the polygonal holes are aligned with the connecting shaft, and then release it, and the transmission shaft 157 will be inserted into the polygonal holes, thereby driving the air deflector to rotate. In this way, the mounting seat 177 corresponds to the through hole 135, and the shielding rib 171 can block the gap.

[0064] Generally, the length of the rotating shaft 175 of the air deflector door corresponds to the length of the air outlet 131. Setting the connecting shaft to be floating can facilitate the installation of the air deflector door.

[0065] In this embodiment, the outer contour of the shielding rib 171 is arc-shaped, and the shielding rib 171 is coaxial with the rotating shaft 175. The radius of the shielding rib 171 is greater than the radius of the through hole 135. In this embodiment, the outer contour of the wind shielding rib is set to be arc-shaped, so that during the rotation of the air deflector 170, the gap between the through hole 135 and the connecting shaft can always be blocked. And such a setting will not affect the radius outside the connecting shaft, thus making it more convenient to close the air deflector door.

[0066] In this embodiment, the shielding rib 171 is arranged corresponding to the inner side of the connecting shaft. In this way, when the air deflector is opened, the gap above the air deflector 170 will be shielded. Due to the arrangement of the air deflector 170, the air sent out from the air outlet 131 will not flow into the installation cavity 133 through the gap corresponding to the outer side of the rotating shaft 175.

[0067] Please refer to Figure 3 、 Figure 4 and Figure 5 , in this embodiment, the difference between the radius of the shielding rib 171 and the radius of the through hole 135 is greater than 1 mm. In this implementation, the difference in radius is set to be greater than 1 mm, so that the shielding effect can be better achieved.

[0068] In this embodiment, the difference is 4 mm, so that it can irradiate the outside of the shielding rib 171, thereby better playing the role of blocking the wind.

[0069] Please refer to Figure 3 、 Figure 4 and Figure 5 , in this embodiment, an annular boss 178 protrudes from the end face of the mounting seat 177. An arc-shaped sealing platform 137 protrudes outward from the outer peripheral edge of the through hole 135. The annular boss 178 is rotatably inserted into the arc-shaped sealing platform 137.

[0070] In this embodiment, the annular boss 178 is arranged at the end of the mounting seat 177, and the arc-shaped sealing platform 137 is arranged at the outer peripheral edge of the through hole 135. In this way, the annular boss 178 can be inserted between the through hole 135 and the connecting shaft and overlap with the arc-shaped sealing platform 137, so as to reduce the gap and form further shielding, thereby better blocking the wind.

[0071] In this embodiment, the arc-shaped sealing platform 137 is arranged on the upper peripheral edge of the through hole 135. The central angle corresponding to the arc-shaped sealing platform 137 is less than 180°. Arranging the arc-shaped sealing platform 137 on the upper peripheral edge of the through hole 135 can shield the air sent out from the air outlet 131, facilitate the connection between the connecting shaft and the mounting seat 177, and the annular boss 178 can be installed on the arc-shaped sealing platform 137 through the lower opening.

[0072] Please refer to Figure 3 、 Figure 4 and Figure 5 , in this embodiment, the gap between the annular boss 178 and the sealing platform is less than 0.5 mm. Setting the gap between the annular boss 178 and the sealing platform to be less than 0.5 mm can achieve sealing while ensuring convenient assembly.

[0073] In this embodiment, the outer diameter of the annular boss 178 gradually decreases towards the end. The outer diameter of the annular boss 178 is set to gradually shrink towards the end to avoid machining errors and facilitate installation.

[0074] In this embodiment, the shape of the connecting shaft is a flat shaft. The mounting seat 177 is circular and is provided at both ends of the connecting shaft. The shielding rib 171 is provided on the inner peripheral edge of the mounting seat 177, and the shape of the shielding rib 171 is generally fan-shaped.

[0075] Please refer to Figure 6 and Figure 7 , in this embodiment, the air deflector body 173 includes an inner plate 179 and an outer plate 181. The rotating shaft 175 portion includes an inner rotating shaft portion 183 and an outer rotating shaft portion 185. The inner rotating shaft portion 183 is connected to the inner plate 179, and the outer rotating shaft portion 185 is connected to the outer plate 181. The mounting seat 177 is provided at the end of the inner rotating shaft portion 183. A sealing rib 187 protrudes from the inner peripheral edge of the outer plate 181. The inner plate 179 is assembled to the outer plate 181, the sealing rib 187 abuts against the inner plate 179, and the inner rotating shaft portion 183 is assembled to the outer rotating shaft portion 185. A wind shielding rib 189 that cooperates with the mounting seat 177 protrudes from the inner side of the outer rotating shaft portion 185.

[0076] In this application, by providing the wind shielding rib 189 on the inner side of the outer rotating shaft portion 185, it can cooperate with the mounting seat 177 to achieve wind shielding, thereby preventing external wind from flowing into the rotating shaft 175 and forming condensation inside the rotating shaft 175.

[0077] In summary, the embodiments of the present invention provide an indoor unit 100 and the working principles and beneficial effects of an air conditioner, including:

[0078] In this embodiment, by providing the shielding rib 171 on the side of the air deflector 170 close to the through hole 135, the shielding rib 171 is used to shield the gap between the transmission shaft 157 of the drive assembly 150 and the through hole 135, so that the air flowing out from the air outlet 131 will not flow into the installation cavity 133 through the through hole 135, thereby avoiding the problem of condensation formed by the confluence of cold and hot air in the installation cavity 133. Especially when the air conditioner is in the cooling mode, the cold air sent out from the air outlet 131 will not enter the installation cavity 133 and confluence with the hot air generated by the operation of the drive assembly 150 to form condensation.

[0079] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An indoor unit, characterized in that, It includes a base, a middle frame, a driving component and a wind guiding plate; The middle frame is installed on the base. The base and the middle frame are provided with air ducts, and the middle frame is provided with an air outlet communicating with the air duct; One side of the middle frame is provided with a driving component installation cavity, and a through hole communicating with the air outlet is provided on the side wall of the installation cavity; The driving component is installed in the installation cavity, and the transmission shaft of the driving component extends out through the through hole; The wind guiding plate is installed at the air outlet and is connected to the transmission shaft of the driving component; A shielding rib is provided on one side of the wind guiding plate close to the through hole corresponding to the through hole, and the shielding rib can shield the gap between the transmission shaft of the driving component and the through hole.

2. The indoor unit according to claim 1, characterized in that, The wind guiding plate includes a wind guiding plate body and a rotating shaft connected to the wind guiding plate body. An installation seat is provided at the end of the rotating shaft, and the installation seat is connected to the transmission shaft of the driving component; The shielding rib is arranged on the outer peripheral edge of the installation seat and is connected to the inner side of the wind guiding plate body.

3. The indoor unit according to claim 2, characterized in that, The outer contour of the shielding rib is arc-shaped and is coaxial with the rotating shaft; The radius of the shielding rib is greater than the radius of the through hole.

4. The indoor unit according to claim 3, characterized in that, The difference between the radius of the shielding rib and the radius of the through hole is greater than 1 mm.

5. The indoor unit according to any one of claims 2 to 4, characterized in that, A ring-shaped convex platform protrudes from the end face of the installation seat; An arc-shaped sealing platform protrudes outward on the outer peripheral edge of the through hole; The ring-shaped convex platform is rotatably inserted into the arc-shaped sealing platform.

6. The indoor unit according to claim 5, characterized in that, The arc-shaped sealing platform is arranged on the upper peripheral edge of the through hole.

7. The indoor unit according to claim 5, characterized in that, The gap between the ring-shaped convex platform and the arc-shaped sealing platform is less than 0.5 mm.

8. The indoor unit according to claim 5, characterized in that, The outer diameter of the ring-shaped convex platform gradually becomes smaller towards the end.

9. The indoor unit according to any one of claims 2 to 4, characterized in that, The wind guiding plate body includes an inner plate and an outer plate; The rotating shaft part includes an inner rotating shaft part and an outer rotating shaft part; The inner rotating shaft part is connected to the inner plate, and the outer rotating shaft part is connected to the outer plate; The installation seat is arranged at the end of the inner rotating shaft part; A sealing rib protrudes from the inner peripheral edge of the outer plate; The inner plate is assembled into the outer plate, the sealing rib abuts against the inner plate, and the inner rotating shaft part is assembled into the outer rotating shaft part; A wind shielding rib matching with the installation seat protrudes from the inner side of the outer rotating shaft part.

10. An air conditioner, characterized in that, The air conditioner includes an outdoor unit and the indoor unit according to any one of claims 1-9.

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