CN219713493U - Air conditioner - Google Patents

Abstract

The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner. The utility model aims to solve the problem of lubricating oil overflow during the rotation of the swing blades of the existing air conditioner. The air conditioner of the utility model comprises a shell and air guide vanes. The shell comprises an air outlet and a shaft sleeve. The shaft sleeve is provided with an oil storage unit. The oil storage unit comprises more than two oil storage holes and channels. More than two oil storage holes are arranged at intervals along the axial direction of the shaft sleeve. The two adjacent oil storage holes are communicated through a channel. Along the radial direction of the shaft sleeve, the oil storage hole penetrates through the outer wall and the inner wall of the shaft sleeve. The wind guiding blade is arranged at the air outlet. The wind guiding blade comprises a blade body and a rotating shaft which are connected. The shaft sleeve is sleeved on the rotating shaft. The rotating shaft is rotatably connected with the shaft sleeve. The space between the shaft sleeve and the rotating shaft is communicated with the oil storage hole. The rotating shaft is reciprocally rotated for a plurality of times, so that lubricating oil can be sucked into the space between the shaft sleeve and the rotating shaft, thereby being beneficial to reducing the possibility of lubricating oil overflow after the assembly of the rotating shaft and the shaft sleeve.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner.

Background

At present, with the improvement of living standard, the air conditioning industry is also rapidly developing, and especially in recent years, the popularity of air conditioning is rising year by year. When the air conditioner works, cold air or hot air is blown out from the air outlet, and the wind direction of the cold air or the hot air blown out from the air outlet is controlled by adjusting the rotation angle of the air guide blade, so that the wind outlet direction of the air conditioner is controlled.

The wind guiding blade is rotatably connected to the shaft sleeve of the air conditioner shell through a pendulum She Zhuaizhou. When the pendulum She Zhuaizhou is assembled with the bushing, it is necessary to fill the space between the pendulum She Zhuaizhou and the bushing with lubricating oil to reduce the frictional resistance between the pendulum She Zhuaizhou and the bushing. However, during the operation of the air conditioner, the grease applied during the mating of the pendulum She Zhuaizhou and the sleeve may overflow, thereby affecting the appearance.

Accordingly, there is a need in the art for a new air conditioner to solve the above problems.

Disclosure of Invention

In order to solve the problems in the prior art, namely the problem that lubricating oil overflows when the swing blades of the existing air conditioner rotate, the utility model provides an air conditioner which comprises a shell and air guide blades. The shell comprises an air outlet and a shaft sleeve. The shaft sleeve is provided with an oil storage unit. The oil storage unit comprises more than two oil storage holes and channels. More than two oil storage holes are arranged at intervals along the axial direction of the shaft sleeve. The two adjacent oil storage holes are communicated through a channel. Along the radial direction of the shaft sleeve, the oil storage hole penetrates through the outer wall and the inner wall of the shaft sleeve. The wind guiding blade is arranged at the air outlet. The wind guiding blade comprises a blade body and a rotating shaft which are connected. The shaft sleeve is sleeved on the rotating shaft. The rotating shaft is rotatably connected with the shaft sleeve. The space between the shaft sleeve and the rotating shaft is communicated with the oil storage hole.

In the preferable technical scheme of the air conditioner, the cross-sectional area of the oil storage hole is gradually reduced along the direction from the outer wall to the inner wall of the shaft sleeve.

In the preferable technical scheme of the air conditioner, the channel is a hole structure penetrating through the outer wall and the inner wall of the shaft sleeve along the radial direction of the shaft sleeve. The number of channels between adjacent oil storage holes is one.

In the preferable technical scheme of the air conditioner, the cross-sectional area of the channel is gradually reduced along the direction from the outer wall to the inner wall of the shaft sleeve.

In the preferable technical scheme of the air conditioner, the channel is a groove. The number of channels is one or more than two.

In a preferred embodiment of the air conditioner, the passage has an opening provided in the inner wall.

In the preferable technical scheme of the air conditioner, the oil storage unit is located at an end portion of the shaft sleeve, which is close to the blade body, along an axial direction of the shaft sleeve.

In the preferable technical scheme of the air conditioner, the number of the oil storage units is more than two. More than two oil storage units are uniformly distributed along the circumferential direction of the shaft sleeve.

In the preferable technical scheme of the air conditioner, the rotating shaft comprises a first limiting part and a second limiting part. The first limiting part and the second limiting part are arranged at intervals along the axial direction of the rotating shaft. At least one of the first limiting part and the second limiting part is abutted against the end face of the shaft sleeve.

In the preferable technical scheme of the air conditioner, the rotating shaft further comprises a plurality of elastic sheets. The elastic sheets are uniformly distributed along the circumferential direction of the rotating shaft. One end of the elastic sheet, which is far away from the blade body, is provided with a second limiting part. Along the axial direction of the rotating shaft, the projection of the oil storage hole and the channel on the rotating shaft is positioned between the first limiting part and the elastic sheet.

As will be appreciated by those skilled in the art, the air conditioner of the present utility model includes a housing and air guiding vanes. The shell comprises an air outlet and a shaft sleeve. The shaft sleeve is provided with an oil storage unit. The oil storage unit comprises more than two oil storage holes and channels. More than two oil storage holes are arranged at intervals along the axial direction of the shaft sleeve. The two adjacent oil storage holes are communicated through a channel. Along the radial direction of the shaft sleeve, the oil storage hole penetrates through the outer wall and the inner wall of the shaft sleeve. The wind guiding blade is arranged at the air outlet. The wind guiding blade comprises a blade body and a rotating shaft which are connected. The shaft sleeve is sleeved on the rotating shaft. The rotating shaft is rotatably connected with the shaft sleeve. The space between the shaft sleeve and the rotating shaft is communicated with the oil storage hole. Through the rotation of wind-guiding blade, can change the wind direction of the wind that the air conditioner blown out to can promote user's use experience.

The oil storage hole can be used for storing lubricating oil, and when the rotating shaft rotates relative to the shaft sleeve, the lubricating oil stored in the oil storage hole can be sucked between the rotating shaft and the shaft sleeve due to the fact that the air pressure at the position with high rotating speed is small. With the continuous rotation of the rotating shaft, the lubricating oil can gradually fill the space between the rotating shaft and the shaft sleeve, so that a layer of oil film is formed between the rotating shaft and the shaft sleeve, the friction force between the rotating shaft and the shaft sleeve can be reduced, and the effect of improving the rotating smoothness between the rotating shaft and the shaft sleeve is achieved.

Therefore, in the air conditioner of the embodiment of the utility model, the shaft sleeve is provided with the oil storage unit. The oil storage unit comprises more than two oil storage holes and channels. More than two oil storage holes are arranged at intervals along the axial direction of the shaft sleeve. The two adjacent oil storage holes are communicated through a channel. Therefore, the lubricating oil stored in the oil storage hole can be sucked between the rotating shaft and the shaft sleeve, so that the problem that the lubricating oil overflows after the rotating shaft and the shaft sleeve are assembled due to the fact that excessive lubricating oil is directly smeared on the periphery of the rotating shaft manually can be effectively solved, and the rotating smoothness of the air guide blade of the air conditioner can be effectively improved.

Drawings

Preferred embodiments of the air conditioner of the present utility model are described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic view of a partial structure of an air conditioner according to an embodiment of the present utility model;

fig. 2 is a schematic view of a partial structure of a housing of an air conditioner according to an embodiment of the present utility model;

FIG. 3 is a schematic view illustrating an exploded structure of a hub and a wind guiding vane according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a partial structure of a sleeve according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a shaft sleeve according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a sleeve according to another embodiment of the present utility model;

FIG. 7 is a schematic view of a sleeve according to another embodiment of the present utility model;

FIG. 8 is a schematic view of a sleeve according to another embodiment of the present utility model;

FIG. 9 is a schematic view of a sleeve according to still another embodiment of the present utility model;

fig. 10 is a schematic view of a partial structure of a shaft sleeve and a wind guiding blade in a combined state according to an embodiment of the present utility model.

In the accompanying drawings: 1. a housing; 1a, an air outlet; 11. a shaft sleeve; 111. an oil storage unit; 1111. an oil storage hole; 1112. a channel; 2. wind guiding blades; 21. a blade body; 22. a rotating shaft; 221. a first limit part; 222. a second limit part; 2221. a sloped guide surface; 223. a spring plate; 100. an air conditioner.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. Those skilled in the art can adapt it as desired to suit a particular application.

Further, it should be noted that, in the description of the present utility model, terms such as "inner", "outer", and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or components must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two components. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Preferred embodiments of the air conditioner of the present utility model are described below.

Referring to fig. 1 to 10, fig. 1 is a schematic partial structure of an air conditioner according to an embodiment of the present utility model, fig. 2 is a schematic partial structure of a casing of an air conditioner according to an embodiment of the present utility model, fig. 3 is a schematic exploded structure of a shaft sleeve and a wind guiding blade according to an embodiment of the present utility model, fig. 4 is a schematic partial structure of a shaft sleeve according to an embodiment of the present utility model, fig. 5 is a schematic partial structure of a shaft sleeve according to an embodiment of the present utility model, fig. 6 is a schematic structural diagram of a shaft sleeve according to another embodiment of the present utility model, fig. 7 is a schematic structural diagram of a shaft sleeve according to another embodiment of the present utility model, fig. 8 is a schematic structural diagram of a shaft sleeve according to another embodiment of the present utility model, fig. 9 is a schematic partial structure of a shaft sleeve according to another embodiment of the present utility model, and a wind guiding blade is in a combined state.

Referring to fig. 1, 2 and 3, an air conditioner 100 of the present utility model may include a housing 1 and a wind guiding vane 2. The shell 1 is an appearance decoration of the air conditioner 100, which is beneficial to improving the appearance beauty of the air conditioner 100. The housing 1 includes an air outlet 1a. The wind guiding blade 2 is arranged at the air outlet 1a of the shell 1. By the rotation of the wind guiding blades 2, the wind direction of the wind blown out in the air conditioner 100 can be changed to meet the demands of users for different wind directions.

The wind guiding vane 2 comprises a vane body 21 and a rotating shaft 22 which are connected. The blade body 21 changes the wind direction of the wind blown out from the air conditioner 100. The housing 1 further comprises a sleeve 11. The sleeve 11 has a hollow cylindrical structure. The shaft sleeve 11 is sleeved on the rotating shaft 22. The rotating shaft 22 is rotatably connected with the shaft sleeve 11. The sleeve 11 may provide support for the shaft 22. In the use process of the air conditioner 100, the rotating shaft 22 can be driven to rotate relative to the shaft sleeve 11 by external force, and the blade body 21 synchronously rotates, so that the air outlet direction of the air conditioner 100 can be changed.

In the embodiment of the present utility model, the sleeve 11 is provided with an oil storage unit 111. The oil storage unit 111 includes two or more oil storage holes 1111 and a passage 1112. The oil storage hole 1111 is used to store lubricating oil. Along the axial direction of the sleeve 11, two or more oil storage holes 1111 are provided at intervals. Adjacent two of the oil storage holes 1111 communicate through the passage 1112. The channels 1112 are used to provide a path for the communication of lubricating oil between the various oil storage wells 1111. Along the radial direction of the shaft sleeve 11, the oil storage holes 1111 penetrate the outer wall and the inner wall of the shaft sleeve 11 for filling with lubricating oil.

The oil storage hole 1111 of the sleeve 11 may be filled with lubricating oil in advance before the shaft 22 is assembled with the sleeve 11, and for example, the oil storage hole 1111 may be filled with lubricating oil from the outside of the sleeve 11. After the completion of the lubrication filling operation in the oil storage hole 1111, the rotary shaft 22 is inserted into the sleeve 11. Then, the driving shaft 22 is rapidly reciprocated a plurality of times with respect to the sleeve 11, for example, the driving shaft 22 may be rapidly reciprocated by a manual operation. When the rotating shaft 22 rotates fast relative to the shaft sleeve 11, the airflow velocity at the position of the oil storage hole 1111 of the shaft sleeve 11 is faster than that at other positions. Since the air pressure is small at the position where the flow rate of the air flow is fast, the lubricating oil stored in the oil storage hole 1111 is sucked into the space between the hub 11 and the rotating shaft 22. Along with the rotation of the rotating shaft 22, the lubricating oil can fill the space between the shaft sleeve 11 and the rotating shaft 22, so that a layer of oil film is formed between the rotating shaft 22 and the shaft sleeve 11, thereby being beneficial to reducing the friction force between the rotating shaft 22 and the shaft sleeve 11, being convenient for improving the smoothness of the wind guiding blade 2 during rotation, and reducing abnormal sound generated when the rotating shaft 22 rotates relative to the shaft sleeve 11, thereby prolonging the service lives of the rotating shaft 22 and the shaft sleeve 11.

In the air conditioner 100 of the embodiment of the present utility model, the sleeve 11 is provided with the oil storage unit 111. The oil storage unit 111 includes two or more oil storage holes 1111 and a passage 1112. The oil reservoir 1111 may be used to contain lubricating oil. After the assembly of the rotating shaft 22 and the shaft sleeve 11 is completed, the rotating shaft 22 is reciprocally rotated a plurality of times so that the lubricating oil in the oil storage hole 1111 of the shaft sleeve 11 is adsorbed between the rotating shaft 22 and the shaft sleeve 11 under the air pressure. Controlling the size of the oil storage hole 1111 can control the oil storage amount of the oil storage hole 1111, thereby being beneficial to controlling the oil amount of the lubricating oil entering between the rotating shaft 22 and the shaft sleeve 11, and further being beneficial to reducing the possibility of lubricating oil overflow after the rotating shaft 22 and the shaft sleeve 11 are assembled due to the fact that too much lubricating oil is directly smeared on the periphery of the rotating shaft 22 manually.

In addition, when the impurities at the air outlet 1a are blown into between the shaft housing 11 and the shaft housing 22, the impurities may fall into the oil storage hole 1111 of the shaft housing 11 and be collected by the oil storage hole 1111, which may be advantageous in reducing the possibility of occurrence of rattling or abnormal noise when the shaft housing 22 rotates relative to the shaft housing 11 due to the impurities existing between the shaft housing 22 and the shaft housing 11. Since the oil storage hole 1111 communicates with the external environment, impurities in the oil storage hole 1111 may be discharged from between the hub 11 and the rotation shaft 22 through the oil storage hole 1111, thereby reducing the possibility that the impurities may drop again or move between the hub 11 and the rotation shaft 22.

In some examples, the housing 1 is provided with sleeves 11 on both sides of the air outlet 1a in the horizontal direction, respectively. The blade body 21 is provided with rotary shafts 22 at both ends thereof, respectively. The number and positions of the rotating shafts 22 and the shaft sleeves 11 are respectively arranged in a one-to-one correspondence. Along the horizontal direction, the mode that sets up pivot 22 and axle sleeve 11 respectively in the opposite both sides of blade body 21 can be favorable to improving the atress equilibrium of blade body 21, improves the rotation process stationarity of blade body 21. Illustratively, two ends of each blade body 21 are respectively provided with a rotating shaft 22, and two bushings 11 are provided on the housing 1 corresponding to each blade body 21.

In some examples, at least two wind guiding vanes 2 are provided. More than two wind guide blades 2 can rotate at the same time, which is beneficial to more effectively adjusting the wind outlet direction of the air conditioner 100.

In one possible embodiment, the oil storage hole 1111 near the blade body 21 is filled with lubricating oil. The rotation shaft 22 is inserted into the shaft housing 11, and then the rotation shaft 22 is driven to reciprocate. The lubricating oil can flow along the channel 1112 to the other oil storage holes 1111, and when the rotating shaft 22 rotates fast relative to the sleeve 11, the airflow velocity at the oil storage holes 1111 of the sleeve 11 is faster than at other positions. Since the air pressure is small at the position where the flow rate of the air flow is fast, the lubricating oil stored in the oil storage hole 1111 is sucked into the space between the shaft housing 11 and the shaft 22 for lubricating the shaft 22 and the shaft housing 11. In the embodiment of the utility model, since not all the oil storage holes 1111 are filled with the lubricating oil, but part of the oil storage holes 1111 are filled with the lubricating oil, and after the rotating shaft 22 and the shaft sleeve 11 are inserted, the lubricating oil can flow to other oil storage holes 1111 along the channel 1112 until all the oil storage holes 1111 are filled with the lubricating oil, so that the problem that the oil quantity of the lubricating oil is not excessive is solved, the oil quantity of the lubricating oil entering between the rotating shaft 22 and the shaft sleeve 11 can be effectively controlled, and the possibility of lubricating oil overflow after the rotating shaft 22 and the shaft sleeve 11 are assembled due to the fact that excessive lubricating oil is directly smeared on the periphery of the rotating shaft 22 by manpower is reduced.

In some examples, the oil storage unit 111 may include more than two oil storage holes 1111. Among all the oil storage holes 1111, one half of the oil storage holes 1111 or two thirds of the oil storage holes 1111 may be pre-filled with lubricating oil, so that it may be beneficial to ensure that the amount of lubricating oil is still sucked between the rotating shaft 22 and the shaft sleeve 11 after the lubricating oil flows to other oil storage holes 1111 through each channel 1112, and at the same time, ensure that the amount of lubricating oil is not easy to have excessive problems.

In some examples, the oil storage unit 111 may include two oil storage holes 1111 and one channel 1112. Lubricating oil may be stored in one of the oil storage holes 1111. The lubricating oil flows to the oil storage holes 1111 which are not stored with the lubricating oil through the channels 1112, so that the two oil storage holes 1111 and one channel 1112 are filled with the lubricating oil, thereby being beneficial to avoiding overflow caused by excessive storage of the lubricating oil.

In one possible embodiment, the cross-sectional area of the oil reservoir 1111 may be gradually reduced in the direction from the outer wall to the inner wall of the sleeve 11 such that the opening size of the oil reservoir 1111 at the outer wall is larger than the opening size of the oil reservoir 1111 at the inner wall. When foreign substances from the outside enter the gap between the rotation shaft 22 and the sleeve 11, the foreign substances may enter the oil storage hole 1111 from an opening of the oil storage hole 1111 on the inner wall. Since the wall of the oil storage hole 1111 is inclined, the impurities entering the oil storage hole 1111 are easily moved away from the rotating shaft 22, and are not easily returned between the rotating shaft 22 and the sleeve 11 from the opening of the oil storage hole 1111 on the inner wall, thereby facilitating the impurities to be more rapidly discharged from the gap between the rotating shaft 22 and the sleeve 11 through the oil storage hole 1111.

In some examples, the lubricating oil may be a solid oil. The lubricating oil has relatively low fluidity, so that after the lubricating oil is smeared into the oil storage hole 1111, the lubricating oil is less likely to flow out of the oil storage hole 1111, which is advantageous in improving the operation convenience. Meanwhile, lubricating oil entering between the rotating shaft 22 and the shaft sleeve 11 is not easy to overflow from the gap between the rotating shaft 22 and the shaft sleeve 11 under the mutual extrusion of the rotating shaft 22 and the shaft sleeve 11, so that the overall aesthetic property of the air conditioner 100 is improved.

In one possible embodiment, referring to fig. 3 and 4, the oil storage hole 1111 may be in a straight shape, a circular shape, or a curved shape.

In some examples, more than two oil storage units 111 are evenly distributed, and the oil storage holes 1111 are each in a straight line. The lubricating oil is smeared on the oil storage hole 1111. When the rotating shaft 22 rotates relative to the shaft sleeve 11, lubricating oil can quickly enter a gap between the rotating shaft 22 and the shaft sleeve 11, so that an oil film is formed on the contact surface between the rotating shaft 22 and the shaft sleeve 11.

In one possible embodiment, referring to fig. 4 and 5, the channels 1112 are hole structures extending through the outer and inner walls of the sleeve 11 in the radial direction of the sleeve 11. The number of channels 1112 between adjacent oil storage holes 1111 is one.

Since the passage 1112 communicates with the external environment, impurities entering between the shaft 22 and the shaft sleeve 11 can also be discharged from between the shaft sleeve 11 and the shaft 22 through the passage 1112, reducing the possibility of the impurities falling back or moving between the shaft sleeve 11 and the shaft 22. Since both the oil storage hole 1111 and the passage 1112 can provide a discharge path for the foreign substances, the foreign substances can be easily discharged from between the rotation shaft 22 and the sleeve 11.

When foreign substances from the outside enter between the boss 11 and the rotating shaft 22, the foreign substances generally first fall into the oil storage hole 1111 near the vane body 21. As the air conditioner 100 is used for a long time, impurities entering between the hub 11 and the rotation shaft 22 are continuously increased to be accumulated. When excessive impurities are accumulated near the oil storage hole 1111 of the vane body 21, the impurities are not easily discharged through the oil storage hole 1111. However, since the impurities can be discharged through the passage 1112, the situation that the impurities which enter subsequently exist between the shaft housing 11 and the rotating shaft 22 due to the fact that the oil storage hole 1111 close to the vane body 21 cannot continuously contain the impurities, so that abnormal sound or jamming occurs between the shaft housing 11 and the rotating shaft 22 is avoided.

Illustratively, one end of the passageway 1112 communicates with an intermediate region of one of the oil storage holes 1111 and the other end communicates with an intermediate region of the other oil storage hole 1111.

In some examples, the channels 1112 may be straight holes extending in the axial direction of the hub 11. Alternatively, the channel 1112 may be a helical bore extending about the axis of the hub 11.

In one possible embodiment, the cross-sectional area of the channel 1112 tapers in the direction from the outer wall to the inner wall of the sleeve 11.

The opening size of the channels 1112 on the outer wall is larger than the opening size of the channels 1112 on the inner wall. After foreign substances from the outside enter the gap between the rotating shaft 22 and the sleeve 11, the foreign substances may enter the passage 1112 from the opening of the passage 1112 on the inner wall. Since the walls of the channels 1112 are beveled, impurities entering the channels 1112 tend to move away from the shaft 22 and not tend to return back between the shaft 22 and the sleeve 11 from the opening in the inner wall of the channels 1112, thereby facilitating faster removal of impurities from the gap between the shaft 22 and the sleeve 11 through the channels 1112.

In one possible embodiment, referring to FIG. 6, the channels 1112 are grooves. The number of channels 1112 is one.

In one possible embodiment, the number of channels 1112 is more than two. The number of channels 1112 between adjacent oil storage holes 1111 is more than two, so that lubricating oil can flow to other oil storage holes 1111 along different channels 1112, which is beneficial to improving the flow efficiency of the lubricating oil.

In some examples, the channels 1112 may be straight grooves extending in the axial direction of the hub 11. Alternatively, the channel 1112 may be a helical chute extending about the axis of the sleeve 11.

In one possible embodiment, referring to fig. 6 and 7, the channel 1112 has an opening provided in the inner wall.

In one possible embodiment, referring to fig. 7, the number of channels 1112 may be two, that is, two channels 1112 are disposed between two adjacent oil storage holes 1111. Both channels 1112 are grooves to form a plurality of different communication paths between two adjacent oil storage holes 1111. For example, two channels 1112 are spaced apart from each other. The two channels 1112 may be disposed parallel to each other.

In one possible embodiment, referring to fig. 8, the number of channels 1112 may be two. The two channels 1112 are spaced apart from each other. One channel 1112 is a hole structure and the other channel 1112 is a groove.

In one possible embodiment, referring to fig. 9, the channels 1112 are grooves. The channel 1112 has an opening provided in the outer wall.

In one possible embodiment, the oil storage unit 111 may include three oil storage holes 1111. Along the axial direction of the sleeve 11, the three oil storage holes 1111 are uniformly distributed, i.e., the intervals between the oil storage holes 1111 are the same. One channel 1112 may be disposed between one set of adjacent oil storage holes 1111, and two channels 1112 may be disposed between the other set of adjacent oil storage holes 1111. For example, two passages 1112 may be provided between the oil storage hole 1111 adjacent to the vane body 21 and the middle oil storage hole 1111, and one passage 1112 may be provided between the oil storage hole 1111 distant from the vane body 21 and the middle oil storage hole 1111.

In one possible embodiment, referring to fig. 3 and 4, the end of the sleeve 11 near the blade body 21 may be provided with the oil storage unit 111 along the axial direction of the sleeve 11, so that the oil storage unit 111 is relatively near the air outlet 1a of the housing 1, which is advantageous in shortening the distance between the oil storage unit 111 and the end surface of the sleeve 11 facing the air outlet 1a, so that impurities entering between the rotating shaft 22 and the sleeve 11 from the air outlet 1a can be more rapidly discharged from the oil storage unit 111 into the space between the rotating shaft 22 and the sleeve 11.

In one possible embodiment, referring to fig. 3 and 4, the number of the oil storage units 111 is more than two, so that when the rotating shaft 22 rotates relative to the shaft sleeve 11, each oil storage unit 111 can provide lubricating oil at different positions, which is beneficial to ensuring that an oil film with a relatively uniform thickness is formed between the rotating shaft 22 and the shaft sleeve 11. In some examples, more than two oil storage units 111 are evenly distributed along the circumference of the sleeve 11. The respective oil storage units 111 do not communicate with each other. The uniform distribution of more than two oil storage units 111 is advantageous for forming an oil film on the contact surface between the rotating shaft 22 and the shaft sleeve 11 more quickly.

In addition, more than two oil storage units 111 can improve the probability that impurities fall into the oil storage units 111 and are collected by the oil storage units 111, and are also beneficial to improving the speed of the impurities discharged from the space between the rotating shaft 22 and the shaft sleeve 11 through the oil storage units 111 and shortening the residence time of the impurities in the space between the rotating shaft 22 and the shaft sleeve 11.

In one possible embodiment, referring to fig. 3 and 10, the sleeve 11 is a clearance fit with the shaft 22. The inner wall of the shaft sleeve 11 facing the shaft 22 is a flat surface, and the outer peripheral surface of the shaft sleeve 11 facing the shaft 22 is also a flat surface, so that the shaft 22 is easy to rotate relative to the shaft sleeve 11 after the shaft 22 is sleeved with the shaft sleeve 11. When the rotating shaft 22 rotates fast relative to the shaft sleeve 11, the lubricating oil stored in the oil storage hole 1111 can be sucked into the gap between the shaft sleeve 11 and the rotating shaft 22, so that an oil film can be formed between the rotating shaft 22 and the shaft sleeve 11, and the smoothness of the rotating shaft 22 when rotating relative to the shaft sleeve 11 is improved.

In one possible embodiment, referring to fig. 3 and 10, the rotation shaft 22 may include a first limiting portion 221 and a second limiting portion 222. The first limiting portion 221 and the second limiting portion 222 are disposed at intervals along the axial direction of the rotating shaft 22. At least one of the first stopper 221 and the second stopper 222 abuts against an end surface of the boss 11. The first limiting part 221 and the second limiting part 222 can effectively limit the shaft sleeve 11 sleeved on the rotating shaft 22, so that the falling off of the rotating shaft 22 relative to the rotating shaft 11 can be avoided, and the reliable connection between the shaft sleeve 11 and the rotating shaft 22 can be enhanced.

The first stopper 221 is located at one side of the boss 11 in the axial direction of the rotation shaft 22. The first limiting part 221 can shield the gap between the shaft sleeve 11 and the rotating shaft 22, so that the first limiting part 221 can effectively block external impurities, and is beneficial to further reducing the possibility that the impurities enter between the shaft sleeve 11 and the rotating shaft 22.

Along the axial direction of the rotation shaft 22, the oil storage unit 111 of the sleeve 11 is disposed near the first stopper 221.

In one possible embodiment, referring to fig. 3 and 10, the rotating shaft 22 may further include a plurality of elastic pieces 223. The plurality of elastic pieces 223 are uniformly distributed along the circumferential direction of the rotating shaft 22. The elastic piece 223 is provided with a second limiting part 222 at one end far away from the blade body 21. Along the radial direction of the rotating shaft 22, a part of the second limiting part 222 protrudes out of the outer surface of the elastic sheet 223. After the shaft sleeve 11 is sleeved on the rotating shaft 22, the part of the second limiting part 222 protruding out of the elastic sheet 223 can be used for limiting the shaft sleeve 11. Along the axial direction of the rotating shaft 22, the projection of the oil storage hole 1111 on the rotating shaft 22 is located between the first limiting portion 221 and the elastic piece 223. A gap is formed between two adjacent spring plates 223. The gap between two adjacent elastic pieces 223 is not communicated with the oil storage hole 1111. The elastic sheet 223 can facilitate the sleeve 11 to be sleeved on the rotating shaft 22 quickly and in a labor-saving manner.

When the shaft sleeve 11 is assembled with the rotating shaft 22, the shaft sleeve 11 can apply extrusion force to the second limiting part 222 and the elastic sheet 223, so that the second limiting part 222 and the elastic sheet 223 are folded towards the axis of the rotating shaft 22, and the second limiting part 222 and the elastic sheet 223 can smoothly pass through the shaft sleeve 11. Since the gaps are formed between the adjacent two elastic pieces 223, when the elastic pieces 223 are folded, the position interference between the elastic pieces 223 does not occur. After the second limiting portion 222 passes through the shaft sleeve 11, the second limiting portion 222 and the elastic sheet 223 rebound to the initial position, so that the second limiting portion 222 can form effective limiting on the shaft sleeve 11.

In some examples, the shaft 22 may include four tabs 223. The four elastic pieces 223 are uniformly distributed along the circumferential direction of the rotating shaft 22. When the shaft sleeve 11 is sleeved on the rotating shaft 22, the shaft sleeve 11 presses each elastic piece 223, so that each elastic piece 223 is pressed by the shaft sleeve 11 to approach the axis of the rotating shaft 22.

In one possible embodiment, referring to fig. 3 and 10, the second limiting portion 222 may include an inclined guide surface 2221. The pitch between the edge of the inclined guide surface 2221 near the first limiting portion 221 and the axis of the rotating shaft 22 is a, and the pitch between the edge of the inclined guide surface 2221 far from the first limiting portion 221 and the axis of the rotating shaft 22 is B, wherein a is greater than B. The inclined guide surface 2221 can reduce the resistance of the sleeve 11 when the sleeve 11 is sleeved on the rotating shaft 22, thereby being beneficial to the sleeve 11 to be sleeved on the rotating shaft 22 more effort-saving. The shaft sleeve 11 can apply a larger component force to the second limiting portion 222 along the radial direction of the rotating shaft 22 through the inclined guiding surface 2221, so that the second limiting portion 222 and the elastic sheet 223 are relatively easy to fold towards the axis of the rotating shaft 22, thereby being beneficial to improving the assembly working efficiency of the shaft sleeve 11 and the rotating shaft 22.

In one possible embodiment, referring to fig. 3 and 10, the blade body 21 is elongated. The rotation shaft 22 is disposed at a short side of the blade body 21. The first stopper 221 protrudes from the surface of the blade body 21 in the thickness direction of the blade body 21. Along the axial direction of the rotating shaft 22, the side surface of the blade body 21 is flush with the surface of the first limiting portion 221 facing the second limiting portion 222.

The surface of the first limiting part 221 protruding out of the blade body 21 can better limit the shaft sleeve 11 sleeved on the rotating shaft 22, so that the rotating shaft 22 is prevented from falling off from the shaft sleeve 11 when the blade body 21 rotates. Along the axial direction of the rotating shaft 22, the side surface of the blade body 21 is flush with the surface of the first limiting portion 221 facing the oil storage unit 111, so that the side surface of the blade body 21 and the first limiting portion 221 can jointly limit the shaft sleeve 11.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. An air conditioner, comprising:

the shell comprises an air outlet and a shaft sleeve, wherein the shaft sleeve is provided with an oil storage unit, the oil storage unit comprises more than two oil storage holes and channels, more than two oil storage holes are arranged at intervals along the axial direction of the shaft sleeve, two adjacent oil storage holes are communicated through the channels, and the oil storage holes penetrate through the outer wall and the inner wall of the shaft sleeve along the radial direction of the shaft sleeve;

the wind-guiding blade is arranged at the air outlet and comprises a blade body and a rotating shaft which are connected, the rotating shaft is sleeved with the shaft sleeve in a sleeved mode, the rotating shaft is rotatably connected with the shaft sleeve, and the space between the shaft sleeve and the rotating shaft is communicated with the oil storage hole.

2. The air conditioner of claim 1, wherein a cross-sectional area of the oil storage hole is gradually reduced in a direction from the outer wall to the inner wall of the boss.

3. The air conditioner of claim 1, wherein the passages are hole structures penetrating the outer wall and the inner wall of the boss in the radial direction of the boss, and the number of the passages between adjacent oil storage holes is one.

4. An air conditioner according to claim 3 wherein the cross-sectional area of the passageway tapers in the direction from the outer wall to the inner wall of the sleeve.

5. The air conditioner of claim 1, wherein the channels are grooves, and the number of the channels is one or more than two.

6. The air conditioner of claim 5, wherein the passage has an opening provided to the inner wall.

7. The air conditioner according to claim 1, wherein the oil storage unit is located at an end of the boss near the vane body in an axial direction of the boss.

8. The air conditioner of claim 1, wherein the number of the oil storage units is two or more, and the two or more oil storage units are uniformly distributed along the circumferential direction of the sleeve.

9. The air conditioner according to any one of claims 1 to 8, wherein the rotating shaft includes a first limit portion and a second limit portion, the first limit portion and the second limit portion are disposed at intervals along an axial direction of the rotating shaft, and at least one of the first limit portion and the second limit portion abuts against an end surface of the boss.

10. The air conditioner according to claim 9, wherein the rotating shaft further comprises a plurality of elastic pieces, the elastic pieces are uniformly distributed along the circumferential direction of the rotating shaft, one end of each elastic piece, which is far away from the blade body, is provided with the second limiting portion, and along the axial direction of the rotating shaft, the projection of the oil storage hole and the channel on the rotating shaft is located between the first limiting portion and the elastic pieces.