Indoor unit of air conditioner

Abstract

The embodiment of the utility model provides an indoor unit of an air conditioner, and relates to the technical field of household appliances. The air conditioner comprises an air outlet frame, a motor base, a motor and a crank. The motor base is connected with the air outlet frame and provided with a first connecting part, the motor is arranged on the motor base, the crank is provided with a first side and a second side which are opposite, the first side is provided with a connecting hole, and the connecting hole is in interference fit with a motor shaft of the motor. A first connecting part is arranged on the first side of the crank, a second connecting part is arranged on the second side of the crank, the first connecting part and the second connecting part are in hole-shaft fit, the first connecting part, the second connecting part and the connecting hole are coaxially arranged, the second connecting part can rotate along the axis of the second connecting part relative to the first connecting part, and the second side, away from the first side, of the crank can be supported by the motor base. Therefore, the conditions of inclination and eccentricity of the crank can be effectively avoided, and abnormal sound generated in the movement process of the crank due to inclination or eccentricity of the crank can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an indoor unit of an air conditioner. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, air conditioners that can play a role in temperature regulation have been increasingly widely used. The left and right wind sweeping mechanism of the air conditioner indoor unit is generally driven by a motor, and the rotational motion of the motor is converted into linear reciprocating motion through a crank.

[0003] The inventor has found through research that the cranks of some existing air conditioner indoor units are prone to tilt and eccentricity when driven by a motor, and are prone to produce abnormal noise during movement. Utility Model Content

[0004] The utility model aims to provide an air-conditioning indoor unit, which can reduce the tilt and eccentricity of a crank, thereby avoiding abnormal noise during movement.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides an air conditioner indoor unit, comprising an air outlet frame, a motor base, a motor and a crank;

[0007] The motor seat is connected to the air outlet frame, and the motor seat is provided with a first connecting portion;

[0008] The motor is arranged on the motor seat;

[0009] The crank has a first side and a second side opposite to each other, the first side is provided with a connecting hole, the connecting hole is interference-fitted with the motor shaft of the motor, and the second side is provided with a second connecting portion;

[0010] The first connecting part and the second connecting part are hole-axis matched, the first connecting part, the second connecting part and the connecting hole are coaxially arranged, and the second connecting part can rotate along its own axis relative to the first connecting part.

[0011] Through the above arrangement, the second side of the crank away from the first side can be supported by the motor base, thereby effectively preventing the crank from tilting or eccentricity, and also preventing abnormal noise generated by the crank during movement due to the tilt or eccentricity of the crank.

[0012] In an optional embodiment, the first connecting portion is a mounting hole, and the second connecting portion is a mounting shaft.

[0013] Through the above arrangement, the crank is mounted on the mounting hole of the motor seat through the mounting shaft on the second side, and the crank can rotate relative to the axis of its own mounting shaft.

[0014] In an optional embodiment, the crank includes a swing rod, the connecting hole is arranged on the first side of the swing rod, the second connecting part is arranged on the second side of the swing rod, and a clearance opening for the swing rod to swing is opened at the lower end of the motor seat.

[0015] Through the above arrangement, after the crank is connected to the motor seat, the crank can also rotate smoothly driven by the motor, thereby avoiding interference between the crank and the motor seat during rotation.

[0016] In an optional embodiment, the air outlet frame is provided with an accommodating space for accommodating the motor seat, and the motor seat is at least partially located in the accommodating space.

[0017] Through the above arrangement, not only can the motor base be prevented from easily falling out of the air outlet frame, but the motor base can also be protected by the air outlet frame.

[0018] In an optional embodiment, the first connecting portion is provided with a mounting portion, and a side of the mounting portion away from the first connecting portion has a first matching portion, and the first matching portion is connected to the air outlet frame.

[0019] Through the above arrangement, it is ensured that the first connecting portion of the motor base is reliably supported, and it is further ensured that the second side of the crank away from the first side is effectively supported.

[0020] In an optional embodiment, the air outlet frame is provided with a second matching portion connected to the first matching portion, and the second matching portion is matched with the hole axis of the first matching portion.

[0021] The above arrangement makes it easy for users to install and disassemble the motor base, and also makes it easy to position and assemble the motor base and the air outlet frame.

[0022] In an optional embodiment, the first matching portion is a matching shaft, and the second matching portion is a matching hole.

[0023] Through the above arrangement, the mating shaft is convexly arranged on the side of the mounting part away from the first connecting part. When assembled with the air outlet frame, it can also increase the strength of the mounting part and further ensure that the second side of the crank away from the first side is effectively supported.

[0024] In an optional embodiment, the air outlet frame is provided with a first positioning portion, and the motor seat is provided with a second positioning portion that is plugged and matched with the first positioning portion.

[0025] The above arrangement can effectively prevent the motor base from rotating or swinging.

[0026] In an optional embodiment, the first positioning portion is a positioning column, and the second positioning portion is a positioning hole.

[0027] Through the above arrangement, while improving the assembly efficiency of the motor base and the air outlet frame, it is also possible to effectively prevent the motor base from rotating or swinging.

[0028] In an optional embodiment, a boss is protruded from the outer side wall of the motor, a through hole is formed on the boss, a threaded hole corresponding to the through hole is formed on the motor seat, and the motor is connected to the motor seat via a threaded fastener.

[0029] Through the above arrangement, the motor is connected to the motor base through the threaded fasteners to ensure the connection strength between the motor and the motor base.

[0030] The beneficial effect of the embodiment of the utility model is as follows: the embodiment of the utility model provides an air conditioner including an air outlet frame, a motor seat, a motor and a crank. The motor seat is connected to the air outlet frame, the motor seat is provided with a first connecting portion, the motor is provided on the motor seat, the crank has a first side and a second side opposite to each other, the first side is provided with a connecting hole, and the connecting hole is interference fit with the motor shaft of the motor. The second side of the crank is provided with a second connecting portion, the first connecting portion and the second connecting portion are hole-shaft matched, the first connecting portion, the second connecting portion and the connecting hole are coaxially arranged, the second connecting portion can rotate along its own axis relative to the first connecting portion, and the second side of the crank away from the first side can be supported by the motor seat, thereby effectively avoiding the tilt and eccentricity of the crank, and also avoiding the abnormal noise generated by the crank during movement due to the tilt or eccentricity of the crank. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the assembly of the motor, motor base, crank and air outlet frame provided in an embodiment of the utility model at a first viewing angle;

[0033] Figure 2 A schematic diagram of the assembly of the motor, motor base, crank and air outlet frame provided in an embodiment of the utility model at a second viewing angle;

[0034] Figure 3 An exploded schematic diagram of a motor, a motor base, a crank and an air outlet frame provided in an embodiment of the utility model;

[0035] Figure 4 A cross-sectional schematic diagram of the assembled motor, motor base, crank and air outlet frame provided in an embodiment of the utility model;

[0036] Figure 5 A schematic structural diagram of a crank provided in an embodiment of the utility model.

[0037] Icon: 100-air outlet frame; 110-first positioning portion; 130-second matching portion; 140-accommodating space; 200-motor seat; 210-second positioning portion; 220-opening; 230-installation portion; 231-first connecting portion; 232-first matching portion; 300-motor; 310-motor body; 311-boss; 3111-through hole; 320-motor shaft; 400-crank; 410-first side; 420-second side; 430-connecting hole; 440-second connecting portion; 450-swing rod; 2-threaded fastener. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] 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 present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The specific structure of an air-conditioning indoor unit provided by an embodiment of the utility model and the corresponding technical effects it brings are described in detail below in conjunction with the patent drawings.

[0045] Please refer to Figure 1-Figure 5 An air conditioner indoor unit provided by an embodiment of the utility model includes an air outlet frame 100, a motor base 200, a motor 300 and a crank 400.

[0046] The motor base 200 is connected to the air outlet frame 100, the motor base 200 is provided with a first connecting portion 231, the motor 300 is arranged on the motor base 200, the crank 400 has a first side 410 and a second side 420 relative to each other, the first side 410 is provided with a connecting hole 430, the connecting hole 430 and the motor shaft 320 of the motor 300 are interference fit, so that the crank 400 can rotate driven by the motor 300.

[0047] A second connecting portion 440 is provided on the second side 420 of the crank 400. The first connecting portion 231 and the second connecting portion 440 are hole-axis matched. The first connecting portion 231, the second connecting portion 440 and the connecting hole 430 are coaxially arranged. The second connecting portion 440 can rotate along its own axis relative to the first connecting portion 231. The rotation center position of the crank 400 and the motor 300 is positioned by the shaft-hole match. The motion center is precise and stable, ensuring that the entire mechanism operates without abnormalities, and also ensuring that the crank 400 remains upright and does not shift in position during operation, thereby avoiding the displacement of the crank 400 due to external force feedback that affects the smoothness of the movement of the motor 300.

[0048] In detail, the crank 400 includes a swing rod 450 , a connection hole 430 is disposed on a first side 410 of the swing rod, and a second connection portion 440 is disposed on a second side 420 of the swing rod 450 .

[0049] It can be understood that when the motor shaft 320 of the motor 300 rotates, the crank 400 can be driven to rotate along the axis of the motor shaft 320 .

[0050] In some existing air conditioners, only the first side 410 of the crank 400 has a connecting hole 430 that is interference fit with the motor shaft 320 of the motor 300, and the second side 420 of the crank 400 is suspended in the air. Therefore, it is easy for the crank 400 to tilt or be eccentric when driven by the motor 300, and during the movement of the crank 400, abnormal noise is easily generated due to the tilt or eccentricity of the crank 400.

[0051] In this embodiment, not only is the first side 410 of the crank 400 connected to the motor shaft 320 of the motor 300, but the second side 420 also has a second connecting portion 440 connected to the motor base 200. That is to say, the second side 420 of the crank 400 away from the first side 410 can be supported by the motor base 200, thereby effectively preventing the crank 400 from being tilted or eccentric, and also preventing abnormal noise generated by the crank 400 during movement due to the tilt or eccentricity of the crank 400.

[0052] In detail, in order to facilitate the installation of the motor shaft 320 of the motor 300 , a mounting column is protruded from the first side 410 of the swing rod 450 , and the mounting column is provided with a connecting hole 430 that is interference-fitted with the motor shaft 320 .

[0053] In detail, in this embodiment, the first connecting portion 231 is a mounting hole, and the second connecting portion 440 is a mounting shaft. Therefore, the mounting shaft of the crank 400 is installed on the mounting hole of the motor base 200 through the second side 420. It should be noted that in order to facilitate the mounting shaft to rotate along its own axis relative to the mounting hole, the mounting shaft and the mounting hole are clearance-matched.

[0054] Of course, in some other embodiments, the first connection portion 231 may be a mounting shaft, and the second connection portion 440 may be a mounting hole.

[0055] In order to facilitate the crank 400 to rotate smoothly under the drive of the motor 300 after the crank 400 is connected to the motor base 200, and to avoid interference between the crank 400 and the motor base 200 during the rotation process. The lower end of the motor base 200 is provided with a clearance opening 220 for the swing rod 450 to swing, that is, the swing rod 450 is located outside the clearance opening 220. It should be noted that the lower end of the motor base 200 can be understood as the end of the motor base through which the motor shaft passes.

[0056] In detail, the motor 300 includes a motor body 310 and a motor shaft 320 connected to each other, the first connecting portion 231 and the crank 400 are located at one end of the make way opening 220, the motor body 310 is located at the other end of the make way opening 220, the motor shaft 320 is passed through the make way opening 220, and the second connecting portion 440 of the crank 400 is arranged in the make way opening 220 to be connected to the motor shaft 320.

[0057] In detail, in the present embodiment, the inner wall of the clearance opening 220 is an arc inner wall. Since the inner wall of the clearance opening 220 is an arc inner wall, the stress concentration phenomenon on the inner wall of the clearance opening 220 can be effectively avoided.

[0058] Of course, in some other embodiments, the inner wall of the clearance opening 220 may also be in other shapes.

[0059] In order to prevent the motor base 200 from easily falling out of the air outlet frame 100 , the motor base 200 can also be protected by the air outlet frame 100 . Optionally, the air outlet frame 100 is provided with a receiving space 140 for receiving the motor base 200 , and the motor base 200 is at least partially received in the receiving space 140 .

[0060] Optionally, the first connection portion is provided with a mounting portion 230 , and the mounting portion 230 is located at an end of the clearance opening 220 away from the motor body 310 .

[0061] In detail, in order to ensure that the first connection portion 231 of the motor base 200 is reliably supported, in this embodiment, the side of the mounting portion 230 away from the first connection portion 231 has a first matching portion 232 , and the first matching portion 232 is connected to the air outlet frame 100 .

[0062] The air outlet frame 100 is provided with a second matching portion 130 detachably connected to the first matching portion 232. It can be understood that the motor base 200 and the air outlet frame 100 can be detachably connected through the first matching portion 232 and the second matching portion 130, so it is convenient for users to assemble and disassemble the motor base 200.

[0063] The second matching portion 130 is hole-axis matched with the first matching portion 232 . Since the first matching portion 232 and the second matching portion 130 are hole-axis matched, the positioning and assembly of the motor base 200 and the air outlet frame 100 are facilitated.

[0064] In detail, in this embodiment, the first matching portion 232 is a matching shaft, and the second matching portion 130 is a matching hole. It can be understood that the matching shaft is convexly arranged on the side of the mounting portion 230 away from the first connecting portion 231, and when assembled with the air outlet frame 100, the strength of the mounting portion 230 can be increased, and the second side 420 of the crank 400 away from the first side 410 can be further ensured to be effectively supported.

[0065] Of course, in some other embodiments, the first matching portion 232 is a matching hole, and the second matching portion 130 is a matching shaft.

[0066] In this embodiment, the motor 300 is threadedly connected to the motor base 200 via a threaded fastener 2. A boss 311 is convexly provided on the outer wall of the motor 300. The boss 311 is provided with a through hole 3111. The motor base 200 is provided with a threaded hole corresponding to the through hole 3111. The motor 300 is connected to the motor base 200 via a threaded fastener 2 to ensure the connection strength between the motor 300 and the motor base 200.

[0067] In detail, the boss 311 is arranged on the outer wall of the motor body 310. When the motor 300 and the motor base 200 are installed, the threaded fastener 2 passes through the through hole 3111 and the threaded hole on the motor base 200 in sequence, and the threaded fastener 2 is tightened to ensure that the motor 300 is stably installed on the motor base 200.

[0068] In order to further ensure that the motor 300 is stably installed on the motor base 200, a plurality of bosses 311 are provided on the motor body 310, and the plurality of bosses 311 are evenly spaced along the outer periphery of the motor body 310, and a through hole 3111 is provided on the boss 311, and a plurality of threaded holes corresponding to the through holes 3111 are provided on the motor base 200.

[0069] Of course, in some other embodiments, the motor 300 and the motor base 200 may also be connected in other connection ways. For example, the motor 300 may also be snap-connected to the motor base 200 .

[0070] Optionally, the air outlet frame 100 is provided with a first positioning portion 110 , and the motor base 200 is provided with a second positioning portion 210 that is plugged into and matched with the first positioning portion 110 .

[0071] In detail, the first positioning portion 110 is a positioning column, and the second positioning portion 210 is a positioning hole. Of course, in some other embodiments, the first positioning portion 110 can also be a positioning hole, and the second positioning portion 210 can be a positioning column.

[0072] Therefore, the motor base 200 and the air outlet frame 100 can be inserted into the second positioning portion 210 through the first positioning portion 110, and then the first matching portion 232 and the second matching portion 130 are matched, so as to prevent the motor base 200 from rotating or swinging.

[0073] In summary, an air conditioner provided by an embodiment of the utility model includes an air outlet frame 100, a motor base 200, a motor 300 and a crank 400. The motor base 200 is connected to the air outlet frame 100, the motor base 200 is provided with a first connecting portion 231, the motor 300 is arranged on the motor base 200, the crank 400 has a first side 410 and a second side 420 opposite to each other, the first side 410 is provided with a connecting hole 430, and the connecting hole 430 is interference fit with the motor shaft 320 of the motor 300. A second connecting portion 440 is provided on the second side 420 of the crank 400. The first connecting portion 231 and the second connecting portion 440 are hole-axis matched. The first connecting portion 231, the second connecting portion 440 and the connecting hole 430 are coaxially arranged. The second connecting portion 440 can rotate along its own axis relative to the first connecting portion 231. The second side 420 of the crank 400 away from the first side 410 can be supported by the motor base 200, thereby effectively preventing the crank 400 from being tilted or eccentric, and also preventing abnormal noise generated by the crank 400 during movement due to the tilt or eccentricity of the crank 400.

[0074] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An air conditioner indoor unit, characterized in that: It comprises an air outlet frame (100), a motor base (200), a motor (300) and a crank (400); The motor base (200) is connected to the air outlet frame (100), and the motor base (200) is provided with a first connecting portion (231); The motor (300) is arranged on the motor seat (200); The crank (400) has a first side (410) and a second side (420) opposite to each other, the first side (410) is provided with a connecting hole (430), the connecting hole (430) is interference-fitted with the motor shaft (320) of the motor (300), and the second side (420) is provided with a second connecting portion (440); The first connecting part (231) and the second connecting part (440) are hole-axis matched, the first connecting part (231), the second connecting part (440) and the connecting hole (430) are coaxially arranged, and the second connecting part (440) can rotate along its own axis relative to the first connecting part (231).

2. The air conditioner indoor unit according to claim 1, characterized in that: The first connection portion (231) is a mounting hole, and the second connection portion (440) is a mounting shaft.

3. The air conditioner indoor unit according to claim 1, characterized in that: The crank (400) includes a swing rod (450), the connecting hole (430) is arranged on the first side (410) of the swing rod (450), the second connecting portion (440) is arranged on the second side (420) of the swing rod (450), and the lower end of the motor base (200) is provided with a clearance opening (220) for the swing rod (450) to swing.

4. The air conditioner indoor unit according to claim 1, characterized in that: The air outlet frame (100) is provided with a receiving space (140) for receiving the motor seat (200), and the motor seat (200) is at least partially received in the receiving space (140).

5. The air conditioner indoor unit according to claim 1, characterized in that: The first connecting portion (231) is provided with a mounting portion (230), and a side of the mounting portion (230) away from the first connecting portion (231) has a first matching portion (232), and the first matching portion (232) is connected to the air outlet frame (100).

6. The air conditioner indoor unit according to claim 5, characterized in that: The air outlet frame (100) is provided with a second matching portion (130) connected to the first matching portion (232), and the second matching portion (130) is axially matched with a hole of the first matching portion (232).

7. The air conditioner indoor unit according to claim 6, characterized in that: The first matching portion (232) is a matching shaft, and the second matching portion (130) is a matching hole.

8. The air conditioner indoor unit according to claim 1, characterized in that: The air outlet frame (100) is provided with a first positioning portion (110), and the motor seat (200) is provided with a second positioning portion (210) plug-fitted with the first positioning portion (110).

9. The air conditioner indoor unit according to claim 8, characterized in that: The first positioning portion (110) is a positioning column, and the second positioning portion (210) is a positioning hole.

10. The air conditioner indoor unit according to claim 1, characterized in that: The outer wall of the motor (300) is provided with a boss (311), the boss (311) is provided with a through hole (3111), the motor seat (200) is provided with a threaded hole corresponding to the through hole (3111), and the motor (300) is connected to the motor seat (200) via a threaded fastener (2).

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