CN218093610U - Fan and household appliance - Google Patents

Abstract

The present application relates to the technical field of fans, and discloses a fan, which includes a housing with an air duct formed inside; an impeller that is rotatably arranged in the air duct and divides the air duct into a first air duct and a second air duct, An internal space is defined; a guide structure is arranged in the internal space and defines a guide channel, and the guide channel communicates with the first air channel and the second air channel through the impeller, so The air guide structure moves relative to the inner space to change the air outlet direction of the impeller; the air guide part includes: a fixed plate and a connecting plate, the connecting plate is rotatably connected with the fixed plate, and is located on the second The first air channel and/or the second air channel are changed by changing the position of the fixing plate and the connecting plate in an air channel and/or the second air channel and outside the impeller air circulation area. In this application, the flow area of the air duct is changed by setting movable air guiding components. The application also discloses a household appliance.

Description

Fans and Household Appliances

technical field

The present application relates to the technical field of fans, for example, to a fan and household appliances.

Background technique

At present, the fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. Fans are widely used in household appliances because of their simple structure and straight airflow.

A fan is disclosed in the related art. The fan includes: an impeller; a flow guide structure rotatably arranged inside the impeller, the flow guide structure includes a body and a connecting shaft, the body is located inside the impeller, One end of the connecting shaft is connected to the body; one end of the driving core is connected to the other end of the connecting shaft; The drive core is driven to rotate, and the drive core rotates to drive the flow guiding structure to rotate.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in related technologies:

In the related art, the fan is equipped with a guide structure, and the direction of the airflow inside the impeller can be changed by the rotation of the guide structure, thereby changing the direction of the air outlet of the impeller, thereby changing the direction of the air outlet of the fan. The air outlet direction of the fan is mainly determined by the eccentric vortex formed in the impeller. The direction of the eccentric vortex can be changed by setting the guide structure. Large air loss will affect the wind effect.

Utility model content

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a fan and a household appliance to solve the problem in the related art that the blowing effect of the fan is not good.

An embodiment of the first aspect of the present application provides a fan, which includes: a housing with an air duct formed inside; an impeller rotatably arranged in the air duct and dividing the air duct into a first air duct and the second air passage, the impeller defines an inner space; the guide structure is arranged in the inner space and defines a guide passage, and the guide passage passes through the impeller and the first air passage and the The second air ducts are all connected, and the flow guide structure is movable relative to the inner space to change the air outlet direction of the impeller; the air guide component includes: a fixed plate and a connecting plate, and the connecting plate and the fixed The plates are rotatably connected, set in the first air channel and/or the second air channel and the air guiding part is located outside the impeller, and the position of the fixed plate and the rotating plate can be changed to change the position of the first air channel. The air circulation area of the first air duct and/or the second air duct can be switched as an air inlet or an air outlet.

In some optional embodiments, the housing includes a first side wall and a second side wall that are oppositely arranged, and the air guiding part includes: a first air guiding part including a first fixing plate, a first connecting plate and The first rotating shaft is arranged on the first side wall, wherein the first fixing plate is fixedly connected to the first side wall; the first rotating shaft is connected to the first fixing plate and is arranged on The impeller is between the first side wall and can rotate around its own axis, the first connecting plate is connected to the first rotating shaft and rotates around the axis of the first rotating shaft; the second wind guiding component , including a second fixing plate, a second connecting plate and a second rotating shaft, which are arranged on the second side wall, wherein, the second fixing plate is fixedly connected with the second side wall, and the second rotating shaft is connected to the second side wall The second fixing plate is connected, arranged between the impeller and the second side wall, and can rotate around its own axis; the second connecting plate is connected with the second rotating shaft and surrounds the second The axis of rotation of the shaft rotates.

In some optional embodiments, the first air guide part and the second air guide part are located on opposite sides of the line where the center of the impeller and the vertical line of the first side wall are located, or located on the The two sides opposite to the straight line where the center of the impeller is located and the perpendicular line of the second side wall.

In some optional embodiments, the fan further includes: a first volute, disposed on the first side wall and perpendicular to the center of the first side wall and the impeller with the first air guiding component. The two sides of the straight line where the line is located; the second volute tongue is arranged on the second side wall and connected with the end of the second air guide component, and the first volute tongue and the second air guide component A first air channel is defined, and the second volute tongue and the first air guide member define a second air channel, one of the first air channel and the second air channel is used for air intake, and the other Used to get wind out.

In some optional embodiments, the flow guide structure includes: a first flow guide member including a first wall surface and a second wall surface, the distance between the first wall surface and the inner edge of the impeller is smaller than the second wall surface The distance between the wall surface and the inner edge of the impeller; the second flow guide is located on the side of the second wall away from the first wall surface, and forms the flow guide channel with the second wall surface; wherein , the guide structure is movable relative to the housing between the first guide position and the second guide position, when the guide structure is in the first guide position, the first volute tongue, The first flow guide and the second flow guide are arranged in sequence, and the distance between the first flow guide and the first volute tongue is smaller than the distance between the first flow guide and the second volute The distance between the tongues allows air to flow from the second air channel to the first air channel; when the air guide structure is at the second air guide position, the second volute tongue, the first air guide The flow guide and the second flow guide are arranged in sequence, and the distance between the first flow guide and the second volute tongue is smaller than the distance between the first flow guide and the first volute tongue , so that air flows from the first air channel to the second air channel.

In some optional embodiments, when the air guiding structure is located at the first air guiding position, the distance between the first air guiding part and the second volute tongue is greater than that of the second air guiding part distance from the first volute tongue; when the flow guiding structure is at the second flow guiding position, the distance between the first wind guiding component and the second volute tongue is smaller than the first The distance between the second wind guiding component and the first volute tongue.

In some optional embodiments, a plurality of flow guides are located on the side of the second flow guide away from the first flow guide, and a flow channel is formed between two adjacent flow guides, so Both ends of the flow channel communicate with the interior of the volute through the impeller.

The embodiment of the second aspect of the present application provides a household appliance, the household appliance includes: the blower described in any one of the above optional embodiments,

In some optional embodiments, the household appliance includes an air conditioner, the indoor unit of the air conditioner includes a body, the fan is located in the body, the body is provided with a first air port and a second air port, and the first The opening of the tuyere is along the horizontal direction or the opening is facing upward, and the opening of the second tuyere is facing downward; wherein, the first side wall is located above the second side wall, and when the air guide structure is at the first guide position, the air flows from the second air opening enters and flows out through the first air outlet; when the air guide structure is at the second air guide position, air enters through the first air outlet and flows out through the second air outlet.

In some optional embodiments, the indoor unit of the air conditioner further includes: a stopper, which is arranged at the second air outlet and extends along the air circulation direction, and the stopper abuts against the first connecting plate to define The rotation angle of the first connecting plate.

The fan and household appliances provided by the embodiments of the present disclosure can achieve the following technical effects:

By setting a movable guide structure inside the impeller of the fan, through the movable guide structure, the formation position of the eccentric vortex can be changed by using the guide function of the guide structure, and then the flow direction of the air in the casing can be changed. The air component can increase or decrease the air circulation area of the air duct defined by the air guide component and the housing. When the air duct is used for air intake, the air circulation area of the air duct can be increased, and the air intake volume of the fan can be increased. Increase the air volume of the fan; when the air duct is used to discharge air, it can reduce the air flow area of the air duct, prevent the air duct from being reversed or surge due to insufficient pressure resistance, and thus reduce the air volume loss of the fan and improve The wind effect of the fan. In addition, by arranging the air guiding component, the noise generated by the air flowing in the housing and colliding with the housing can be reduced, thereby improving user experience.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

FIG. 1 is a schematic cross-sectional view of a fan in a situation provided by an embodiment of the present disclosure;

Fig. 2 is a schematic cross-sectional view of a fan in another case provided by an embodiment of the present disclosure;

Fig. 3 is a schematic diagram of an enlarged structure of part A in Fig. 2 provided by an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of a flow guiding structure provided by an embodiment of the present disclosure;

Fig. 5 is a schematic structural diagram of a household appliance provided by an embodiment of the present disclosure;

Fig. 6 is an exploded schematic diagram of a partial structure of a household appliance provided by an embodiment of the present disclosure.

Reference signs:

10: shell; 101: first side wall; 102: second side wall; 11: accommodation cavity; 12: first snail tongue; 13: second snail tongue;

20: impeller; 201: cascade; 202: internal space;

30: flow guide structure; 31: flow guide channel; 32: first flow guide; 321: first wall; 322: second wall; 33: second flow guide; 34: flow guide; 35: flow channel ;

40: air guiding part; 41: first air guiding part; 411: first fixing plate; 412: first connecting plate; 413: first rotating shaft; 42: second air guiding part; 421: second fixing plate; 422: second connecting plate; 423: second rotating shaft; 43: air duct; 431: first air duct; 432: second air duct;

50: body; 501: first air outlet; 502: second air outlet; 503: stopper;

60: driving motor; 61: first stepping motor; 62: second stepping motor.

detailed description

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear" etc. are based on the orientations or positional relationships shown in the drawings. Positional relationship. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the embodiments of the present disclosure according to specific situations.

In addition, the terms "setting", "connecting" and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure according to specific situations.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

It should be noted that, in the case of no conflict, the embodiments and the features in the embodiments of the present disclosure may be combined with each other.

As shown in FIGS. 1-4 , an embodiment of the present disclosure provides a fan, including: a casing 10 , an impeller 20 , a flow guiding structure 30 and an air guiding component 40 ; a housing chamber 11 is formed inside the housing 10 and is connected to the housing chamber 11 Passed air passage 43; impeller 20 is rotatably arranged in air passage 43 and air passage 43 is divided into first air passage 431 and second air passage 432, and impeller 20 defines internal space 202; Flow guiding structure 30 is arranged on In the inner space 202, the guide structure 30 defines a guide channel 31, and the guide channel 31 communicates with the first air channel 431 and the second air channel 432 through the impeller 20, and the guide structure 30 moves relative to the inner space 202, so as to Change the wind outlet direction of the impeller 20; the wind guide part 40 includes: a fixed plate and a connecting plate, the connecting plate and the fixed plate are rotatably connected, and the wind guide part 40 is arranged in the first air channel 431 and/or the second air channel 432 and guides The wind part 40 is located on the outside of the impeller 20, and the air circulation area of the first air duct 431 and/or the second air duct 432 is changed by changing the positions of the fixed plate and the rotating plate, so as to switch between the air inlet air channel and the air outlet air channel. .

The air guide member 40 is arranged in the first air channel 431 or the second air channel 432 and the air guide member 40 is located outside the impeller 20, that is to say, when the number of the air guide member 40 is one, the air guide member 40 can All are located in the first air passage 431 and outside the impeller 20. At this time, only the air flow area of the first air passage 431 can be changed by the movable air guide part 40; the air guide parts 40 can also all be located in the second air passage. 432 and located on the outside of the impeller 20, at this time only the air flow area of the second air channel 432 can be changed by the movable air guide part 40; when the number of the air guide part 40 is two, the two air guide parts 40 are Located in the first air channel 431 and the second air channel 432 and outside the impeller 20, that is, one of the two air guiding components 40 is located in the first air channel and the other is located in the second air channel, as shown in Fig. 1 and Fig. As shown in 2, the air circulation area of the first air passage 431 and the second air passage 432 can be changed by moving the two air guiding components 40 at this time.

Using the fan provided by the embodiment of the present disclosure, the flow guide structure 30 is arranged inside the impeller 20, and the flow guide structure 30 defines a flow guide channel 31. When the impeller 20 rotates, the airflow flows into the impeller 20, flows through the flow guide channel 31 and then flows out. The positions of the impeller 20 and the guide structure 30 determine the formation position of the eccentric vortex in the impeller 20, thereby determining the air flow direction of the fan. The first air duct 431 or the second air duct 432, one of the first air duct 431 or the second air duct 432 is used for air outlet and the other is used for air intake, by setting a rotatable connecting plate, it can be increased or decreased The air circulation area of the first air channel 431 or the second air channel 432 can be switched to be an air inlet channel or an air outlet channel. In addition, the arrangement of the air guiding component 40 can reduce the collision between the airflow and the casing 10 , thereby reducing the loss of wind force, thereby improving the wind output effect of the fan and reducing the noise caused by the collision of the airflow.

The impeller 20 is a multi-leaf type, including a plurality of cascades 201 , and the cascades 201 are arranged along the circumferential direction. A corresponding motor is arranged in the casing 10, and the impeller 20 is driven to rotate in the volute by driving the motor. The impeller 20 can also rotate relative to the housing 10 in other ways, such as belt transmission, gear transmission, etc. It can be understood that as long as the impeller 20 is driven to rotate relative to the housing 10, it belongs to the scope of the present application. optional.

When the impeller 20 rotates, the airflow enters the interior of the impeller 20 from the opening of the impeller 20 (the gap between two adjacent cascades 201 ), and is discharged from the other cascade 201 to form a working airflow. The flow of the airflow in the impeller 20 is very complicated, and the velocity field of the airflow is unstable. There is also an eccentric vortex in the impeller 20 , and the center is located near the flow guiding structure 30 . The existence of the eccentric vortex makes the output end of the impeller 20 generate circulating flow, and outside the eccentric vortex, the flow line of the air flow inside the impeller 20 is arc-shaped. Therefore, the flow velocity at each point on the outer circumference of the impeller 20 is inconsistent, the closer to the vortex center, the greater the velocity, and the closer to the volute, the smaller the velocity.

In some embodiments, the casing 10 includes a first side wall 101 and a second side wall 102 oppositely disposed, and the air guide member 40 includes: a first air guide member 41 and a second air guide member 42, the first air guide member 41 includes a first fixing plate 411, a first connecting plate 412 and a first rotating shaft 413, the first wind guiding member 41 is arranged on the first side wall 101, wherein the first fixing plate 411 is fixedly connected to the first side wall 101; The first rotating shaft 413 is connected to the first fixing plate 411, the first rotating shaft 413 is arranged between the impeller 20 and the first side wall 101 and can rotate around its own axis, the first connecting plate 412 is connected to the first rotating shaft 413 And rotate around the axis of the first rotating shaft 413;

The second wind guiding part 42 includes a second fixing plate 421, a second connecting plate 422 and a second rotating shaft 423. The second wind guiding part 42 is arranged on the second side wall 102, wherein the second fixing plate 421 is connected to the second side wall 102. The wall 102 is fixedly connected, the second rotating shaft 423 is connected with the second fixed plate 421, the second rotating shaft 423 is arranged between the impeller 20 and the second side wall 102 and can rotate around its own axis; the second connecting plate 422 and the first The two rotating shafts 423 are connected and rotate around the axis of the second rotating shaft 423 .

Using the fan provided by the embodiment of the present disclosure, the first side wall 101 and the second side wall 102 jointly enclose an air delivery channel with a first opening and a second opening, and the first air guide member 41 and the second air guide member 42 Arranged on the opposite first side wall 101 and second side wall 102, the first wind guide part 41 and the second wind guide part 42 form a part of the air delivery channel, and the first wind guide part 41 and the second wind guide part 41 are arranged The component 42 can guide the inflow and outflow of the airflow. The first fixing plate 411 and the first connecting plate 412 are connected by setting the first rotating shaft 413, and the first connecting plate 412 is driven to rotate around the axis of the first rotating shaft 413. The second fixing plate 421 and the second connecting plate 422 are connected by setting the second rotating shaft 423, and the second connecting plate 422 is driven to rotate around the axis of the second rotating shaft 423.

Optionally, as shown in Figures 1 and 2, the first fixing plate 411 is a straight plate, the first fixing plate 411 is obliquely arranged on the first side wall 101, the first connecting plate 412 is an arc-shaped plate, and the arc-shaped plate The arc-shaped opening faces the second side wall 102 . In this way, the wind loss can be reduced while directing the air flow.

Optionally, a first stepping motor 61 is provided in the housing 10, and the first stepping motor 61 is drivingly connected to the first rotating shaft 413, and the first stepping motor 61 can control the rotation angle of the first rotating shaft 413, Furthermore, the rotation angle of the first connecting plate 412 is controlled to prevent the excessive rotation angle of the first connecting plate 412 from affecting the air intake or output of the fan.

Optionally, as shown in Figures 1 and 2, the second fixing plate 421 is an arc-shaped plate, the arc-shaped opening of the arc-shaped plate faces the first side wall 101, the second connecting plate 422 is a straight plate, and the second connecting plate 422 is arranged vertically opposite to the first volute tongue 12 . In this way, the wind loss can be reduced while directing the air flow.

Optionally, a second stepper motor 62 is disposed inside the housing 10, and the second stepper motor 62 is drivingly connected to the second rotating shaft 423, and the second stepping motor 62 can control the rotation angle of the second rotating shaft 423, Furthermore, the rotation angle of the second connecting plate 422 is controlled to prevent the excessive rotation angle of the second connecting plate 422 from affecting the air intake or output of the fan.

In some embodiments, the first wind guide part 41 and the second wind guide part 42 are located on opposite sides of the straight line where the center of the impeller and the vertical line of the first side wall 101 are located, or on the side of the center of the impeller and the second side wall 102 The opposite sides of the line on which the perpendicular lies.

Since the relative setting of the first side wall 101 and the second side wall 102 of the volute includes two situations of parallel relative setting and non-parallel relative setting, when the first side wall 101 and the second side wall 102 are not parallel to each other, it will There are two situations: the first wind guide member 41 on the first side wall 101 and the second wind guide member 42 on the second side wall 102 are located at the two opposite sides of the straight line where the center of the impeller and the vertical line of the first side wall 101 are located. side, or, the first wind guide part 41 on the first side wall 101 and the second wind guide part 42 on the second side wall 102 are located on opposite sides of the line where the center of the impeller and the vertical line of the second side wall 102 are located , at this time, select the side wall with a smaller deflection angle as the reference side wall compared with the parallel opposite situation, and the vertical line passing through the center of the impeller 20 as the reference line.

Using the fan provided by the embodiment of the present disclosure, as shown in Figures 1 and 2, when the air guide structure 30 is located at the first air guide position, the first air guide member 41 guides the air flow to the guide structure 30, and the second air guide The component 42 guides the air flow to flow out to enhance the wind effect of the fan; when the air guide structure 30 is located at the second guide position, the second air guide member 42 guides the air flow to flow to the guide structure 30, and the first air guide member 41 guides The induced air flows out to improve the wind effect of the fan.

In some embodiments, the fan further includes: a first volute tongue 12 and a second volute tongue 13, the first volute tongue 12 is arranged on the first side wall 101 and is located between the first side wall 101 and the impeller together with the first wind guiding component 41 The two sides of the straight line where the vertical line at the center of 20 is located; the second volute tongue 13 is arranged on the second side wall 102 and is connected with the end of the second wind guide member 42; wherein, the first volute tongue 12 and the second wind guide The component 42 defines a first air passage 431, the second volute tongue 13 and the first air guide member 41 define a second air passage 432, one of the first air passage 431 and the second air passage 432 is used for air intake, and the other One is for wind.

As shown in FIG. 1 and FIG. 2 , the second volute tongue 13 is arranged on the second side wall 102 and is connected to the end of the second air guide member 42 , which means that the second air guide member 42 is provided with the second fixing plate 421 One end is connected with the second volute tongue 13 .

Using the fan provided by the embodiment of the present disclosure, as shown in Figure 1 and Figure 2, by setting the first volute tongue 12 and the second volute tongue 13, when the flow guide structure 30 is located at the first flow guide position or the second flow guide position The eccentric vortex formed by the cooperation of the first volute tongue 12 and the flow guide structure 30 or the second volute tongue 13 and the flow guide structure 30 is more stable than the eccentric vortex formed by the flow guide structure 30 alone. In addition, the arrangement of the first volute tongue 12 and the second volute tongue 13 can also effectively improve the air circulation efficiency, thereby improving the performance of the fan.

In some embodiments, the flow guide structure 30 includes: a first flow guide member 32, including a first wall surface 321 and a second wall surface 322, the distance between the first wall surface 321 and the inner edge of the impeller is smaller than the distance between the second wall surface 322 and the inside edge of the impeller. The distance between the edges; the second flow guide is located on the side of the second wall 322 away from the first wall 321, and forms a flow guide channel 31 with the second wall 322; wherein, the flow guide structure 30 is in the first flow guide position and the second guide position relative to the housing 10, when the guide structure 30 is in the first guide position, the first volute tongue 12, the first guide member 32 and the second guide member 33 are arranged in sequence, The distance between the first deflector 32 and the first volute tongue 12 is smaller than the distance between the first deflector 32 and the second volute tongue 13; when the deflector structure 30 is in the second deflector position, the second volute tongue 13. The first flow guide 32 and the second flow guide 33 are arranged in sequence, the distance between the first flow guide 32 and the second volute tongue 13 is smaller than the distance between the first flow guide 32 and the first volute tongue 12 distance.

As shown in Figure 1, the air guide structure 30 is located at the first air guide position, the first volute tongue 12, the first air guide member 32, and the second air guide member 33 are arranged in sequence, and the air flow is between the first volute tongue 12 and the air guide channel. An eccentric vortex is formed at 31, and the eccentric vortex drives the airflow to flow out from the first air passage 431 under the guidance of the second air guide member 42. At this time, the first air passage 431 is the air outlet air passage, and the second air passage 432 is the air inlet wind wind.

As shown in Figure 2, the flow guide structure 30 is located at the second flow guide position, the second volute tongue 13, the first flow guide piece 32, and the second flow guide piece 33 are arranged in sequence, and the air flow is between the second volute tongue 13 and the flow guide channel. An eccentric vortex is formed at 31, and the eccentric vortex drives the airflow to flow out from the second air duct 432 under the guidance of the first air guide member 41. At this time, the first air duct 431 is the air inlet duct, and the second air duct 432 is the outlet air duct. wind wind. By changing the position of the air guiding structure 30, it is equivalent to selecting the volute tongue matched with the air guiding structure 30, thereby changing the flow direction of the air flow.

Optionally, a drive motor 60 is arranged in the volute, and the drive motor 60 drives the flow guide structure 30 to rotate in the impeller 20, so that the flow guide structure 30 is relatively opposite to the impeller between the first flow guide position and the second flow guide position. 20 turns.

In some embodiments, when the air guiding structure 30 is at the first air guiding position, the distance between the first air guiding component 41 and the second volute tongue 13 is greater than the distance between the second air guiding component 42 and the first volute tongue 12 distance; when the air guiding structure 30 is in the second air guiding position, the distance between the first air guiding component 41 and the second volute tongue 13 is smaller than the distance between the second air guiding component 42 and the first volute tongue 12 .

With the fan provided by the embodiment of the present disclosure, the air guide structure 30 moves relative to the casing 10 between the first air guide position and the second air guide position, and the first air guide member 41 and the second air guide member 42 also follow the When the flow guide structure 30 is moved, when the flow guide structure 30 is located at the first flow guide position, the first air channel 431 is the air outlet channel, and the second air channel 432 is the air inlet channel, the first air guide member 41 Move with the second air guide member 42 to make the air flow area of the first air channel 431 larger than the air flow area of the second air channel 432; the air guide structure 30 is located at the second air guide position, and the first air channel 431 is the air inlet air channel When the second air duct 432 is an air outlet duct, the first air guide member 41 and the second air guide member 42 move so that the air circulation area of the second air duct 432 is larger than the air circulation area of the first air duct 431 . That is to say, after the air guide structure 30 changes the air outlet direction of the fan, the first air guide member 41 and the second air guide member 42 rotate, so that the air flow area of the air channel on the air inlet side is larger than that of the air channel on the air outlet side. The air circulation area is to increase the air inlet area of the fan, prevent the fan from reverse wind or surge, and improve the wind outlet effect of the fan.

In some embodiments, the air guide structure 30 further includes: a plurality of air guides 34, the plurality of air guides 34 are located on the side of the second air guide 33 away from the first air guide 32, two adjacent air guides A flow channel 35 is formed between the components 34 , and both ends of the flow channel 35 communicate with the inside of the casing 10 through the impeller 20 .

A plurality of flow guides 34 are all located on the side of the second flow guide 33 away from the first flow guide 32, as shown in FIG. The arrangement directions of the flow parts 32 are arranged sequentially. Flow passages 35 are formed between two adjacent flow guides 34 , that is to say, there are multiple flow passages 35 , the airflow enters the impeller 20 , flows through the flow guide passage 31 and the plurality of flow passages 35 , and then flows out of the impeller 20 . The tortuosity of the flow channel 35 formed between the plurality of flow guides 34 is smaller than the tortuosity of the flow guide channel 31 formed between the first flow guide 32 and the second flow guide 33, so that the air flow is Flow between the two flow guides 34 to reduce the loss of airflow power.

With the fan provided by the embodiment of the present disclosure, the setting of the plurality of flow guides 34 conforms to the flow direction of the eccentric vortex, which can minimize the influence on the air flow of the eccentric vortex and play a role in guiding the air flow, further stabilizing Eccentric vortex.

As shown in FIG. 1 to FIG. 6 , an embodiment of the present disclosure provides a household appliance, including the fan in any one of the above embodiments.

The household appliance provided by the embodiments of the present disclosure has all the beneficial effects of the fan in any one of the above embodiments because it includes the fan in any one of the above embodiments, and will not be repeated here.

Household appliances include but are not limited to air conditioners, duct machines, range hoods, ovens, air purifiers, etc.

In some embodiments, the household appliance includes an air conditioner, the indoor unit of the air conditioner includes a body 50, the fan is located in the body 50, the body 50 is provided with a first air port 501 and a second air port 502, the opening of the first air port 501 is along the horizontal direction or the opening faces Above, the opening of the second air outlet 502 faces downward; wherein, the first side wall 101 is located above the second side wall 102, and when the air guide structure 30 is in the first air guide position, the air enters through the second air outlet 502 and passes through the first air outlet 501. Outflow: when the air guide structure 30 is in the second air guide position, air enters through the first air port 501 and flows out through the second air port 502 .

As shown in Figure 1, the horizontal air outlet is the first air outlet 501, and the downward air outlet is the second air outlet 502. When the air conditioner needs cooling, the user wants the cold air to blow to the upper part of the room to achieve shower-style air supply, because the shower-style air supply In this way, the cold air blowing to the upper part of the room will continue to sink, quickly lowering the room temperature, instead of directly blowing the cold air to the ground, so that the cold air will gather in the lower part of the room, which will cause the phenomenon of cold feet and hot head, and directly blowing people will cause body discomfort, at this time, the diversion structure 30 moves relative to the internal space 202, and is located at the first diversion position, so that the first volute tongue 12, the first diversion member 32, and the second diversion member 33 are arranged in sequence, and the eccentric vortex Formed at the first volute tongue 12 and the guide channel 31 of the guide structure 30 , the gas flows from the second air port 502 to the interior of the impeller 20 under the guide of the first guide member 41 , and the gas flows in the second guide member 42 The gas flowing out of the impeller 20 under the guidance of the guide flows out from the first air outlet 501, the first air outlet 501 is an air outlet, and the second air outlet 502 is an air inlet, so as to realize shower-style air supply.

As shown in Figure 2, when the air conditioner needs to be heated, the user hopes to achieve carpet-type air supply, because when the carpet-type air supply is used, the density of hot air is relatively small compared to cold air, and the hot air blowing to the ground will continue to float up, quickly raising the temperature of the room. high, instead of directly blowing the hot air to the upper part of the room, so that the hot air gathers in the upper part and is difficult to sink, and there will be an uncomfortable feeling of warming the head and cold feet. The diversion position is such that the second volute tongue 13, the first guide member 32, and the second guide member 33 are arranged in sequence, and the eccentric vortex is formed at the second volute tongue 13 and the guide channel 31 of the guide structure 30. Under the guidance of the second air guide member 42, the gas flows from the first air port 501 to the inside of the impeller 20, and under the guidance of the first air guide member 41, the gas flowing out of the impeller 20 flows out from the second air port 502, and the second air port 502 is an air outlet, and the first air outlet 501 is an air inlet, thereby realizing carpet air supply.

By adopting the household appliances provided by the embodiments of the present disclosure, the air-conditioning indoor unit can realize carpet-type heating and air supply and shower-type cooling air supply, thereby effectively improving user experience.

In some optional embodiments, the indoor unit of the air conditioner further includes: a stopper 503, which is arranged at the second air outlet 502 and extends along the air flow direction, and the stopper 503 abuts against the first connecting plate 412 to define the first The rotation angle of the connecting plate 412.

As shown in FIG. 1 and FIG. 2, the stopper 503 is a long plate, which is arranged at the second tuyere 502 along the axial direction of the impeller, and can guide the airflow. The stopper 503 is used to abut against the first connecting plate 412. Limit the rotation angle of the first connecting plate 412 to prevent the first connecting plate 412 from being too large in rotation angle, which will affect the air inlet or outlet of the fan.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A fan, comprising:

a housing (10) in which an air duct (43) is formed;

the impeller (20) is rotatably arranged in the air duct (43) and divides the air duct (43) into a first air duct (431) and a second air duct (432), and the impeller (20) defines an inner space (202);

the flow guide structure (30) is arranged in the inner space (202) and defines a flow guide channel (31), the flow guide channel (31) is communicated with the first air duct (431) and the second air duct (432) through the impeller (20), and the flow guide structure (30) moves relative to the inner space (202) to change the air outlet direction of the impeller (20);

the air guide member (40) includes: the air guide component (40) is arranged in the first air channel (431) and/or the second air channel (432) and is positioned outside the impeller (20), and the air circulation area of the first air channel (431) and/or the second air channel (432) is changed by changing the positions of the fixed plate and the rotating plate so as to be switched into an air inlet channel or an air outlet channel.

2. The fan of claim 1,

the casing (10) comprises a first side wall (101) and a second side wall (102) which are oppositely arranged, and the air guiding component (40) comprises:

the first air guiding component (41) comprises a first fixing plate (411), a first connecting plate (412) and a first rotating shaft (413), and is arranged on the first side wall (101), wherein the first fixing plate (411) is fixedly connected with the first side wall (101); the first rotating shaft (413) is connected with the first fixing plate (411), is arranged between the impeller (20) and the first side wall (101) and can rotate around the axis of the impeller, and the first connecting plate (412) is connected with the first rotating shaft (413) and rotates around the axis of the first rotating shaft (413);

the second air guiding component (42) comprises a second fixing plate (421), a second connecting plate (422) and a second rotating shaft (423) and is arranged on the second side wall (102), wherein the second fixing plate (421) is fixedly connected with the second side wall (102), and the second rotating shaft (423) is connected with the second fixing plate (421), is arranged between the impeller (20) and the second side wall (102), and can rotate around the axis of the second rotating shaft; the second connecting plate (422) is connected to the second rotating shaft (423) and rotates about the axis of the second rotating shaft (423).

3. The fan according to claim 2, wherein the first air guiding component (41) and the second air guiding component (42) are located on two opposite sides of a straight line of the impeller center and a perpendicular line of the first side wall (101), or located on two opposite sides of a straight line of the impeller center and a perpendicular line of the second side wall (102).

4. The fan of claim 3, further comprising:

the first volute tongue (12) is arranged on the first side wall (101) and is positioned on two sides of a straight line where a perpendicular line between the first side wall (101) and the center of the impeller is positioned with the first air guide part (41);

the second volute tongue (13) is arranged on the second side wall (102) and is connected with the end part of the second air guiding component (42);

the first air duct (431) is defined by the first spiral tongue (12) and the second air guiding component (42), the second air duct (432) is defined by the second spiral tongue (13) and the first air guiding component (41), one of the first air duct (431) and the second air duct (432) is used for supplying air, and the other one of the first air duct (431) and the second air duct (432) is used for discharging air.

5. The fan according to claim 4, characterized in that the flow guiding structure (30) comprises:

a first flow guide member (32) comprising a first wall surface (321) and a second wall surface (322), wherein the distance between the first wall surface (321) and the inner edge of the impeller (20) is smaller than the distance between the second wall surface (322) and the inner edge of the impeller (20);

the second flow guide piece (33) is arranged on one side, away from the first wall surface (321), of the second wall surface (322) and forms the flow guide channel (31) with the second wall surface (322);

the flow guide structure (30) is movable relative to the housing (10) between a first flow guide position and a second flow guide position, when the flow guide structure (30) is at the first flow guide position, the first volute tongue (12), the first flow guide piece (32) and the second flow guide piece (33) are arranged in sequence, and the distance between the first flow guide piece (32) and the first volute tongue (12) is smaller than the distance between the first flow guide piece (32) and the second volute tongue (13), so that air flows from the second air duct (432) to the first air duct (431);

when the flow guide structure (30) is at the second flow guide position, the second volute tongue (13), the first flow guide piece (32) and the second flow guide piece (33) are sequentially arranged, and the distance between the first flow guide piece (32) and the second volute tongue (13) is smaller than the distance between the first flow guide piece (32) and the first volute tongue (12), so that air flows from the first air channel (431) to the second air channel (432).

6. The fan of claim 5,

when the flow guiding structure (30) is located at the first flow guiding position, the distance between the first air guiding part (41) and the second volute tongue (13) is larger than the distance between the second air guiding part (42) and the first volute tongue (12);

when the flow guide structure (30) is located at the second flow guide position, the distance between the first air guide part (41) and the second volute tongue (13) is smaller than the distance between the second air guide part (42) and the first volute tongue (12).

7. The fan according to claim 5, wherein the flow guiding structure (30) further comprises:

the plurality of flow guide parts (34) are positioned on one side, deviating from the first flow guide part (32), of the second flow guide part (33), a flow channel (35) is formed between every two adjacent flow guide parts (34), and two ends of the flow channel (35) are communicated with the interior of the shell (10) through the impeller (20).

8. A household appliance, characterized in that it comprises: the blower of any one of claims 1-7.

9. Household appliance according to claim 8,

the household appliance comprises an air conditioner, the indoor unit of the air conditioner comprises a machine body (50), the fan is located in the machine body (50), the machine body (50) is provided with a first air port (501) and a second air port (502), the opening of the first air port (501) faces upwards along the horizontal direction or the opening of the first air port, and the opening of the second air port (502) faces downwards;

the first side wall (101) is positioned above the second side wall (102), and when the flow guide structure (30) is in the first flow guide position, air enters from the second air opening (502) and flows out from the first air opening (501); when the flow guiding structure (30) is at the second flow guiding position, air enters from the first air opening (501) and flows out from the second air opening (502).

10. The household appliance according to claim 9, wherein the indoor unit of the air conditioner further comprises:

and a stopper (503) provided in the second tuyere (502) and extending in the air flow direction, and abutting against the first connection plate (412) through the stopper (503) to define the rotation angle of the first connection plate (412).

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