Fan and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a fan and an air conditioner. The fan comprises a volute, an impeller and a fan cover, wherein an impeller cavity with an air inlet and an air outlet is defined by the volute; the adjusting mechanism is arranged at the air inlet and comprises a plurality of adjusting blocking pieces and an adjusting ring piece, the adjusting blocking pieces are movably connected with the volute, the adjusting blocking pieces are arranged on the outer edge of the air inlet in the circumferential direction of the air inlet, a sliding hole is formed in the adjusting ring piece, and the adjusting blocking pieces are located in the sliding hole in a sliding mode; wherein the sliding holes are obliquely formed in the circumferential direction of the air inlet, and when the adjusting blocking pieces slide along the sliding holes, the multiple adjusting blocking pieces do reciprocating motion in the radial direction of the air inlet so as to adjust the ventilation area of the air inlet. And by adjusting the sliding connection between the blocking piece and the sliding hole, the ventilation area of the air inlet can be continuously adjusted, the adjusting range is wider, and different air volume requirements can be met.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, for example to a fan and an air conditioner. Background Technology

[0002] Currently, fans, as a common type of fluid machinery, are widely used in ventilation, air conditioning, air purification, and other fields. Traditional fans typically consist of basic components such as a volute and an impeller, with the volute's main function being to guide airflow and improve the fan's efficiency and performance.

[0003] A centrifugal fan with an adjustable air inlet is disclosed in related technology. The centrifugal fan includes a main body with an air inlet pipe fixedly connected to its air inlet. A groove is formed on the circumferential side of the air inlet pipe, and an adjusting pipe is sleeved on the outside of the air inlet pipe. The air inlet angle can be adjusted by rotating the adjusting pipe. A limiting slip ring is used to lock the adjusting pipe in the groove, making it impossible to separate the adjusting pipe from the air inlet pipe. The position of the cover plate is adjusted by a traction component, thereby blocking the air inlet of the adjusting pipe and adjusting the air intake area.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, the air intake angle is adjusted by rotating the regulating tube. However, the rotation angle of the regulating tube may be limited by the structure, resulting in a limited range of adjustment of the air intake opening. This makes it impossible to adjust the air intake volume significantly and cannot adapt to different air volume requirements.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a fan and an air conditioner to improve the adjustment range of the fan's air intake volume, so that the fan can meet different air volume requirements.

[0009] This disclosure provides a fan, comprising: a volute defining an impeller cavity having an air inlet and an air outlet; and an adjustment mechanism disposed at the air inlet, the adjustment mechanism including a plurality of adjustment baffles and an adjustment ring, the adjustment baffles being movably connected to the volute, the plurality of adjustment baffles being disposed circumferentially along the outer edge of the air inlet, and the adjustment ring having a sliding hole, the adjustment baffles being slidably located within the sliding hole; wherein, the sliding hole is inclinedly disposed circumferentially along the air inlet, and when the adjustment baffles slide along the sliding hole, the plurality of adjustment baffles reciprocate radially along the air inlet to adjust the ventilation area of ​​the air inlet.

[0010] Optionally, the adjusting baffle is provided with a sliding column, which slides within a sliding hole. The sliding hole includes a first end and a second end. The distance between the first end and the center of the air inlet is greater than the distance between the second end and the center of the air inlet. The sliding column can move between the first end and the second end. When the sliding column moves to the first end, the ventilation area of ​​the air inlet is the first area. When the sliding column moves to the second end, the ventilation area of ​​the air inlet is the second area. The first area is greater than the second area.

[0011] Optionally, the sliding hole is arc-shaped. When the sliding column moves from the first end to the second end, the sliding column drives the adjusting baffle to move towards the center of the air inlet; when the sliding column moves from the second end to the first end, the sliding column drives the adjusting baffle to move away from the center of the air inlet.

[0012] Optionally, the adjusting baffle is slidably connected to the volute.

[0013] Optionally, one of the adjusting baffle and the volute is provided with a groove, and the other of the adjusting baffle and the volute is provided with a protrusion. The protrusion and the groove are located on the circumferential outer side of the air inlet and extend radially along the air inlet. The protrusion slides within the groove.

[0014] Optionally, at least part of the adjusting baffle abuts against the volute; and / or,

[0015] The baffle plate is adjusted to match the wall surface of the volute facing the air inlet in the depth direction of the air inlet.

[0016] Optionally, the adjusting ring is annular, and the fan further includes a drive device connected to the adjusting ring for driving the adjusting ring to move circumferentially along the air inlet, thereby causing the adjusting ring to reciprocate radially along the air inlet.

[0017] Optionally, the outer peripheral wall of the adjusting ring is provided with a rack portion, and the driving device includes: a transmission gear meshing with the rack portion; and a drive motor drivingly connected to the transmission gear. The drive motor drives the adjusting ring to move through the transmission gear and the rack portion, so that the adjusting ring drives the adjusting baffle to move.

[0018] Optionally, air inlets are provided at both opposite ends of the volute, and each air inlet is equipped with an adjustment mechanism.

[0019] This disclosure also provides an air conditioner, which includes a fan as described in any of the above embodiments.

[0020] The fan and air conditioner provided in this disclosure can achieve the following technical effects:

[0021] The fan in this embodiment of the disclosure has an air inlet whose opening area can be adjusted by an adjustment mechanism, thereby adjusting the air intake area. An adjusting ring and an adjusting baffle are slidably connected. While the adjusting baffle slides along the sliding hole, it reciprocates radially along the air inlet. When the adjusting baffle moves towards the center of the air inlet, the ventilation area of ​​the air inlet decreases, thus reducing the air intake volume. When the adjusting baffle moves away from the center of the air inlet, the ventilation area of ​​the air inlet increases, thus increasing the air intake volume. This slidable connection between the adjusting baffle and the sliding hole allows for continuous adjustment of the air intake area, providing a wider adjustment range to adapt to different airflow requirements. Precise sliding of the adjusting baffle within the sliding hole allows for fine adjustment of the air intake ventilation area, thereby achieving precise control of the airflow volume and meeting the precise adjustment requirements of the fan under different operating conditions. Furthermore, the structure of the adjusting baffle and adjusting ring is relatively simple, without complex mechanical transmission components, reducing potential failure points, improving system reliability and stability, and lowering manufacturing and maintenance costs.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0024] Figure 1 This is a partial structural schematic diagram of an air conditioner provided in an embodiment of this disclosure;

[0025] Figure 2 This is a partial structural schematic diagram of another air conditioner provided in an embodiment of this disclosure;

[0026] Figure 3 This is a schematic diagram of the structure of a wind turbine from one perspective, provided in an embodiment of this disclosure;

[0027] Figure 4 This is a cross-sectional structural schematic diagram of a fan provided in an embodiment of this disclosure;

[0028] Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle;

[0029] Figure 6 This is a cross-sectional structural schematic diagram of another fan provided in an embodiment of this disclosure;

[0030] Figure 7 yes Figure 6 A magnified structural diagram of part B in the middle section;

[0031] Figure 8 This is a partial structural schematic diagram of another fan provided in an embodiment of this disclosure;

[0032] Figure 9 This is a schematic diagram of the cooperation structure between the volute tongue and the drive mechanism provided in an embodiment of this disclosure;

[0033] Figure 10 This is a schematic diagram of the structure of a cochlear tongue from one perspective, provided in an embodiment of this disclosure;

[0034] Figure 11 This is a cross-sectional structural schematic diagram of another fan provided in an embodiment of this disclosure;

[0035] Figure 12 This is a schematic diagram of the structure of another wind turbine provided in this embodiment of the present disclosure from one perspective;

[0036] Figure 13 This is a structural schematic diagram of another wind turbine provided in an embodiment of this disclosure from another perspective;

[0037] Figure 14 This disclosure provides a schematic diagram of the upper volute structure.

[0038] Figure 15 This is a structural schematic diagram of another wind turbine provided in an embodiment of this disclosure from another perspective;

[0039] Figure 16 This is a structural schematic diagram of another wind turbine provided in the embodiments of this disclosure from yet another perspective;

[0040] Figure 17 This is a partial structural schematic diagram of another fan provided in an embodiment of this disclosure;

[0041] Figure 18 This is a cross-sectional structural schematic diagram of another fan provided in an embodiment of this disclosure;

[0042] Figure 19 yes Figure 18 A magnified structural diagram of section C;

[0043] Figure 20 yes Figure 18 A magnified structural diagram of part D in the middle.

[0044] Figure label:

[0045] 10. Volute; 101. Impeller cavity; 102. Air inlet; 103. Air outlet; 104. Upper volute; 1041. Second protrusion; 105. Lower volute; 1051. Air outlet; 1052. Body; 106. Air outlet cavity; 1061. Upper wall of the air outlet cavity; 1062. Lower wall of the air outlet cavity; 107. Opening; 1071. Installation space; 108. Sliding part; 1081. Stop part; 20. Volute tongue; 201. Sliding fit part; 2011. Rack; 202. Gear; 203. Drive mechanism; 204. Moving section; 205. Adjustment section; 206. Volute tongue protrusion; 207. First protrusion; 208. Baffle; 209. Reinforcing rib; 30. Adjustment mechanism; 301. Adjustment ring; 3011. Rack section; 302. Sliding hole; 304. Adjustment baffle; 305. Sliding column; 306. Slide groove; 307. Protrusion; 308. Transmission gear; 309. Drive motor; 40. Housing; 401. Fan; 4011. First fan; 4012. Second fan; 4013. Impeller; 402. Heat exchanger; 403. Heat exchange outlet; 404. Motor. Detailed Implementation

[0046] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0047] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for describing embodiments of this disclosure herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0048] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0049] Furthermore, the terms "set up," "connect," and "fix" 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 intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0050] Unless otherwise stated, the term "multiple" means two or more.

[0051] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0053] For ease of description, the wind turbine's up, down, left, right, front, and back directions are as follows: Figure 3 As shown, the length direction of the air outlet and air outlet cavity refers to the left-right direction, and the height direction refers to the up-down direction.

[0054] Combination Figures 1 to 20 As shown in the figure, this embodiment of the present disclosure provides an air conditioner, which includes a housing 40, a heat exchanger 402 and a fan 401. The heat exchanger 402 and the fan 401 are located inside the housing 40. The housing 40 has a heat exchange air inlet and a heat exchange air outlet 403. The fan 401 can drive airflow to enter the housing 40 from the heat exchange air inlet and exchange heat with the heat exchanger 402, and then flow out from the heat exchange air outlet 403, thus realizing the temperature regulation function of the air conditioner.

[0055] This disclosure provides a fan 401, which includes a volute assembly and an impeller 4013. The volute assembly includes a volute 10, which defines an impeller cavity 101 having an air inlet 102 and an air outlet 103. The impeller 4013 rotates within the impeller cavity 101. The volute 10 also defines an air outlet cavity 106, which has an air outlet 103. The impeller cavity 101 communicates with the air outlet 103 through the air outlet cavity 106.

[0056] like Figures 1 to 15 As shown, the volute assembly includes a volute 10 and a volute tongue 20, as... Figure 6 and Figure 7 As shown, the sidewall of the air outlet cavity 106 along its length has a sliding portion 108; the volute tongue 20 is disposed in the air outlet cavity 106, and the end of the volute tongue 20 along its length has a sliding engagement portion 201, which is slidably connected to the sliding portion 108; wherein, the sliding portion 108 extends along the height direction of the air outlet cavity 106 so that the volute tongue 20 can move along the height direction of the air outlet cavity 106 and adjust the position of the volute tongue 20 in the air outlet cavity 106.

[0057] In this embodiment, a sliding portion 108 is provided on the longitudinal sidewall of the air outlet cavity 106, and a sliding engagement portion 201 is provided on the volute tongue 20 corresponding to the sliding portion 108. Thus, the volute tongue 20 can move along the height direction of the air outlet cavity 106 via the sliding portion 108 and the sliding engagement portion 201, thereby adjusting the position of the volute tongue 20 in the air outlet cavity 106. This allows the volute tongue 20 to adjust the ventilation area of ​​the air outlet 103, and consequently, the air outlet area of ​​the air outlet 103. Because the volute tongue 20 is movable, it can both cooperate with the volute housing 10 to discharge air and move to adjust the airflow. Furthermore, the sliding portion 108 and the sliding engagement portion 201 eliminate the need for additional components and a complex drive mechanism 203, reducing structural complexity and the cost of the fan 401. This increases the functionality of the fan 401 and improves its versatility.

[0058] Optionally, the volute tongue 20 is capable of moving between an initial position and an adjusted position. When the volute tongue 20 is in the initial position, such as... Figure 3 and Figure 4 As shown, the upper wall of the volute tongue 20 is abutted (fitted or close to) the upper wall 1061 of the air outlet cavity; as Figures 11 to 13 As shown, when the volute tongue 20 is in the adjustment position, there is a gap between the upper wall surface of the volute tongue 20 and the upper wall surface 1061 of the air outlet cavity.

[0059] In this embodiment, when the volute tongue 20 is in the initial position, it is close to the upper wall surface 1061 of the air outlet cavity, and the distance between the volute tongue 20 and the lower wall surface 1062 of the air outlet cavity is at its maximum, thus maximizing the airflow from the air outlet 103. When the volute tongue 20 is in the adjusted position, there is a gap between the upper wall surface of the volute tongue 20 and the upper wall surface 1061 of the air outlet cavity, reducing the distance between the volute tongue 20 and the lower wall surface 1062 of the air outlet cavity, thereby reducing the airflow.

[0060] Optionally, the volute 10 includes an upper volute 104 and a lower volute 105, such as... Figure 8 As shown, the lower volute 105 includes a body 1052 and an air outlet 1051 connected to each other. The body 1052 is located below the upper volute 104. The body 1052 and the upper volute 104 enclose an impeller cavity 101. The air outlet 1051 is provided with an air outlet chamber 106 and an air outlet 103. An opening 107 is provided at the upper part of the air outlet chamber 106. The opening 107 is located behind the air outlet 103. The front end of the upper volute 104 is located at a distance from the rear of the air outlet 1051. That is, the front end of the upper volute 104 is located on the side of the opening 107 away from the air outlet 103. The front end of the upper volute 104 and the rear end of the upper sidewall of the air outlet 1051 enclose an installation space 1071. The volute tongue 20 is movably located within the installation space 1071.

[0061] In this embodiment, the lower volute 105 and the upper volute 104 enclose an impeller cavity 101 for housing the impeller 4013. The lower volute 105 has a separate air outlet cavity 106 and an air outlet 103. Thus, when the upper volute 104 and the lower volute 105 are detachable structures, the air outlet 103 and the air outlet cavity 106 are an integral structure, requiring no splicing, ensuring the air outlet sealing of the air outlet 103 and the air outlet cavity 106. It also facilitates the connection between the upper volute 104 and the lower volute 105. The upper part of the air outlet cavity 106 has an opening 107, where the volute tongue 20 is located. The volute tongue 20 has an installation space 1071 and a movement space, facilitating its adjustment and fixation.

[0062] Optionally, such as Figure 9 and Figure 10 As shown, the volute tongue 20 includes a moving section 204 and an adjusting section 205. The moving section 204 is movably disposed within the installation space 1071 along the height direction of the air outlet cavity 106. The moving section 204 is constructed with a volute tongue protrusion 206, which protrudes towards the air outlet cavity 106 and into the air outlet cavity 106. The adjusting section 205 is located within the air outlet cavity 106, and one end of the adjusting section 205 is connected to one end of the moving section 204. When the volute tongue 20 is in the initial position, the upper wall surface of the adjusting section 205 is in contact with the upper wall surface 1061 of the air outlet cavity. When the volute tongue 20 is in the adjusted position, there is a gap between the upper wall surface of the adjusting section 205 and the upper wall surface 1061 of the air outlet cavity.

[0063] In this embodiment, the moving section 204 of the volute tongue 20 is disposed within the installation space 1071, used to block the opening 107 and also to drive the fan. Furthermore, the volute tongue protrusion 206 of the moving section 204 can cooperate with the volute housing 10 to achieve airflow from the fan 401. The adjusting section 205 adjusts the distance between itself and the upper wall surface 1061 of the air outlet cavity, and also adjusts the distance between itself and the lower wall surface 1062 of the air outlet cavity, thus allowing adjustment of the airflow area and the airflow volume from the air outlet 103.

[0064] Optionally, the adjusting section 205 is matched with the upper wall surface 1061 of the air outlet cavity.

[0065] In this embodiment of the disclosure, the matching of the adjustment section 205 with the upper wall surface 1061 of the air outlet cavity means that the shape, length and width of the adjustment section 205 are the same as or similar to the upper wall surface 1061 of the air outlet cavity. In this way, the adjustment section 205 can serve as the upper wall surface of the air outlet channel, improve the uniformity of air outlet and avoid air leakage.

[0066] Optionally, such as Figure 14 and Figure 15 As shown, the rear wall of the volute tongue 20 abuts against the front sidewall of the upper volute 104. The rear wall of the volute tongue 20 has multiple first protrusions 207, and the front sidewall of the upper volute 104 has multiple second protrusions 1041. The second protrusions 1041 are adapted to the first protrusions 207. The multiple first protrusions 207 and the multiple second protrusions 1041 can be interlocked and form a nested structure. When the volute tongue 20 moves from the adjusted position to the initial position, the multiple first protrusions 207 and the multiple second protrusions 1041 move towards each other to form a nested structure. When the volute tongue 20 moves from the initial position to the adjusted position, the multiple first protrusions 207 and the multiple second protrusions 1041 move away from each other.

[0067] In this embodiment, the first protrusion 207 and the second protrusion 1041 ensure that the volute tongue 20 maintains a certain degree of sealing with the upper volute 104 during movement, and that the upper volute 104 and the rear wall of the volute tongue 20 form a complete inner wall when the volute tongue 20 is in its initial position. When the volute tongue 20 moves toward the adjustment position, the rear wall of the volute tongue 20 remains in contact with the upper volute 104, thereby ensuring the sealing of the inner wall of the volute 10 and its air supply performance.

[0068] Optionally, the posterior wall of the spiracle abuts against the anterior side of the anterior sidewall of the upper spiracle 104.

[0069] Optionally, a plurality of first protrusions 207 are spaced apart along the length of the rear wall of the volute tongue 20, and a plurality of second protrusions 1041 are spaced apart sequentially along the length of the upper volute 104. The number of first protrusions 207 and second protrusions 1041 are the same and they correspond one-to-one. This can increase the mating area between the upper volute 104 and the volute tongue 20 and improve the sealing effect.

[0070] Optionally, such as Figure 4 As shown, the side wall of the air outlet cavity 106 along its length has a stop portion 1081. The stop portion 1081 protrudes toward the air outlet cavity 106 and has an adjustable position including an extreme position. When the volute tongue 20 moves to the extreme position, the sliding engagement portion 201 abuts against the stop portion 1081 to restrict the volute tongue 20 from moving away from the initial position.

[0071] In this embodiment, when the volute tongue 20 moves upward, it abuts against the upper wall surface 1061 of the air outlet cavity, thus restricting its continued upward movement. When the volute tongue 20 moves downward, it cannot continue downward movement when the sliding engagement part 201 abuts against the stop part 1081. Therefore, the downward movement of the volute tongue 20 is stopped by the stop part 1081, and the upward movement is stopped by the upper wall surface 1061 of the air outlet cavity. This limits the vertical movement of the volute tongue 20, preventing it from over-moving and causing air leakage in the volute housing 10.

[0072] Optionally, the volute tongue 20 may also include a baffle 208, which is disposed on the upper wall of the volute tongue 20 and extends upward; wherein the baffle 208 is movably located on the rear side of the rear end of the air outlet 1051.

[0073] In this embodiment, the baffle 208 moves with the volute tongue 20 and is located on the rear side of the air outlet 1051. In this way, the baffle 208 can further block the connection between the volute tongue 20 and the air outlet 1051 to prevent air leakage.

[0074] Optionally, the volute tongue 20 also includes reinforcing ribs 209, which are connected between the rear sidewall of the volute tongue 20 and the baffle 208, thereby increasing the strength of the volute tongue 20. Multiple reinforcing ribs 209 are provided, spaced apart sequentially along the length of the volute tongue 20.

[0075] Optionally, one of the sliding portion 108 and the sliding mating portion 201 includes a sliding protrusion, and the other of the sliding portion 108 and the sliding mating portion 201 includes a sliding groove. Both the sliding protrusion and the sliding groove extend along the height direction of the air outlet cavity 106.

[0076] In this embodiment, the sliding part 108 and the sliding mating part 201 are a sliding protrusion and a sliding groove. This structure is simple and easy to process. The sliding mating structure of the sliding groove and the sliding protrusion has reliable movement and does not require adding more parts. It will not occupy the space of the volute tongue 20 and the volute 10, thus avoiding affecting the air volume of the fan 401.

[0077] Optionally, such as Figure 7 and Figure 10 As shown, the sidewall of the air outlet cavity 106 along its length is provided with a sliding protrusion, and the end of the volute tongue 20 along its length is provided with a sliding groove.

[0078] Optionally, the sliding part 108 corresponds to the opening 107, that is, the sliding part 108 corresponds to the installation space 1071, so that the moving section 204 of the volute tongue 20 moves first, and then drives the adjusting section 205 to move.

[0079] Optionally, such as Figures 5 to 7 , Figure 10 and Figure 11 As shown, the sliding fit part 201 is constructed with a rack 2011, and the volute assembly also includes a gear 202 and a drive mechanism 203. The gear 202 is meshed with the rack 2011; the drive mechanism 203 is driven by the gear 202; wherein, the rack 2011 extends along the height direction of the air outlet cavity 106, and the drive mechanism 203 drives the volute tongue 20 to move along the height direction of the air outlet cavity 106 through the gear 202 and the rack 2011.

[0080] In this embodiment, the volute tongue 20 achieves a sliding connection through the meshing structure of gear 202 and rack 2011. This structure is simple, and the meshing transmission of gear 202 and rack 2011 has stable transmission characteristics, maintaining smooth movement over a wide speed range. Even under high load or high speed, the stability and reliability of the transmission are guaranteed, reducing vibration and impact. Furthermore, the meshing transmission of gear 202 and rack 2011 provides a precise transmission ratio, ensuring very precise control of the volute tongue 20's movement speed and position, thus enabling precise adjustment of the airflow from the outlet 103.

[0081] Optionally, the air outlet cavity 106 is provided with sliding parts 108 at both ends in the length direction, and the volute tongue 20 is provided with corresponding sliding mating parts 201 at both ends in the length direction. In this way, the movement of the volute tongue 20 in the length direction is synchronized, improving the adjustment accuracy.

[0082] Optionally, such as Figures 16 to 20As shown, the fan 401 also includes an adjustment mechanism 30, which is located at the air inlet 102. The adjustment mechanism 30 includes multiple adjustment baffles 304 and an adjustment ring 301. The adjustment baffles 304 are movably connected to the volute 10. The multiple adjustment baffles 304 are arranged circumferentially around the outer edge of the air inlet 102. The adjustment ring 301 has a sliding hole 302, and the adjustment baffles 304 slide within the sliding hole 302. The sliding hole 302 is inclined along the circumferential direction of the air inlet 102. When the adjustment baffles 304 slide along the sliding hole 302, the multiple adjustment baffles 304 reciprocate radially along the air inlet 102 to adjust the ventilation area of ​​the air inlet 102.

[0083] In this embodiment, the air inlet 102 has its ventilation area adjusted by the adjustment mechanism 30, thereby adjusting the air intake area. The adjustment ring 301 is slidably connected to the adjustment baffle 304. While sliding along the sliding hole 302, the adjustment baffle 304 reciprocates radially along the air inlet 102. When the adjustment baffle 304 moves towards the center of the air inlet 102, the ventilation area of ​​the air inlet 102 decreases, thus reducing the air intake volume. When the adjustment baffle 304 moves away from the center of the air inlet 102, the ventilation area of ​​the air inlet 102 increases, thus increasing the air intake volume. This slidable connection between the adjustment baffle 304 and the sliding hole 302 allows for continuous adjustment of the ventilation area of ​​the air inlet 102, providing a wider adjustment range to adapt to different airflow requirements. By adjusting the baffle 304 to slide precisely within the sliding hole 302, the ventilation area of ​​the air inlet 102 can be finely adjusted, thereby achieving precise control of the air intake volume and meeting the precise adjustment requirements of the fan 401 under different operating conditions. Furthermore, the combination of the adjusting baffle 304 and the adjusting ring 301 results in a relatively simple structure without complex mechanical transmission components, reducing potential failure points, improving system reliability and stability, and simultaneously lowering manufacturing and maintenance costs.

[0084] Optionally, such as Figure 16 and Figure 17 As shown, the adjusting baffle 304 is provided with a sliding post 305, which slides within the sliding hole 302. The sliding hole 302 includes a first end and a second end. The distance between the first end and the center of the air inlet 102 is greater than the distance between the second end and the center of the air inlet 102. The sliding post 305 can move between the first end and the second end. When the sliding post 305 moves to the first end, the ventilation area of ​​the air inlet 102 is the first area. When the sliding post 305 moves to the second end, the ventilation area of ​​the air inlet 102 is the second area. The first area is greater than the second area.

[0085] In this embodiment, the adjusting baffle 304 is slidably positioned within the sliding hole 302 via the sliding post 305. The first end of the sliding hole 302 is relatively far from the center of the air inlet 102, while the second end is relatively far from the center of the air inlet 102. Thus, when the sliding post 305 moves to the first end, the adjusting baffle 304 connected to the sliding post 305 is relatively far from the center of the air inlet 102, resulting in a larger ventilation area for the air inlet 102. When the sliding post 305 moves to the second end, the adjusting baffle 304 connected to the sliding post 305 is relatively far from the center of the air inlet 102, thereby reducing the ventilation area of ​​the air inlet 102.

[0086] Optionally, the sliding hole 302 is arc-shaped. When the sliding column 305 moves from the first end to the second end, the sliding column 305 drives the adjusting baffle 304 to move towards the center of the air inlet 102. When the sliding column 305 moves from the second end to the first end, the sliding column 305 drives the adjusting baffle 304 to move away from the center of the air inlet 102.

[0087] In this embodiment, the sliding hole 302 is arc-shaped, and when the sliding column 305 slides within the sliding hole 302, the sliding column 305 can drive the adjusting baffle 304 to move continuously. This makes the change in the ventilation area of ​​the air inlet 102 continuous, which can achieve precise adjustment of the area of ​​the air inlet 102, avoid sudden changes in air volume, reduce noise, and improve the user experience.

[0088] Optionally, the adjusting baffle 304 is slidably connected to the volute 10.

[0089] In this embodiment, the adjusting baffle 304 reciprocates radially along the air inlet 102 under the drive of the sliding column 305. The adjusting baffle 304 is slidably connected to the volute 10. This not only ensures the connection between the adjusting baffle 304 and the volute 10 and the connection stability of the adjusting baffle 304, but also reduces the resistance of the movement of the adjusting baffle 304, thereby reducing energy consumption.

[0090] Optionally, one of the adjusting baffle 304 and the volute 10 is provided with a groove 306, and the other of the adjusting baffle 304 and the volute 10 is provided with a protrusion 307. The protrusion 307 and the groove 306 are located on the circumferential outer side of the air inlet 102 and extend radially along the air inlet 102. The protrusion 307 slides within the groove 306.

[0091] In this embodiment, the adjusting baffle 304 and the volute 10 are slidably connected via a groove 306 and a protrusion 307. The structure of the groove and protrusion 307 is relatively simple and easy to design and manufacture. It does not require complex processing techniques or high-precision assembly, reducing production costs and manufacturing difficulty. Moreover, the groove 306 and protrusion 307 provide a clear guide path for the adjusting baffle 304, ensuring a smooth and accurate sliding process. This guiding effect effectively prevents the adjusting baffle 304 from shifting or jamming during movement, improving the operational stability of the system.

[0092] Optionally, at least part of the adjusting baffle 304 is in contact with the volute 10.

[0093] In this embodiment, at least a portion of the adjusting baffle 304 is in contact with the volute 10, so that there is always a part of the adjusting baffle 304 in contact with the volute 10. This can prevent the adjusting baffle 304 and the volute 10 from forming an airflow channel, improve the sealing between the adjusting baffle 304 and the volute 10, and ensure that the airflow of the air inlet 102 can only enter from the side of the adjusting baffle 304 toward the center of the air inlet 102, thereby effectively regulating the air intake of the air inlet 102 and reducing the air intake of the volute 10.

[0094] Optionally, the adjusting baffle 304 is aligned with the wall surface of the volute 10 facing the air inlet 102 in the depth direction of the air inlet 102. Here, the depth direction of the air inlet 102 refers to the air intake direction of the air inlet.

[0095] In this embodiment of the disclosure, the matching of the adjusting baffle 304 with the wall surface of the volute 10 facing the air inlet 102 in the depth direction of the air inlet 102 means that the extension shape and extension length of the adjusting baffle 304 along the depth of the air inlet 102 are the same as or similar to the size and length of the wall surface of the volute 10 facing the air inlet 102. This can increase the mating area between the adjusting baffle 304 and the volute 10, thereby improving the air conditioning effect.

[0096] Optionally, there are multiple adjusting baffles 304. Multiple adjusting baffles 304 are arranged sequentially along the circumference of the air inlet 102 on the wall of the volute 10 facing the air inlet 102. In this way, multiple adjusting baffles 304 can adjust the ventilation area from the circumference of the air inlet 102, thereby adjusting the air intake volume, so that the air intake of the fan 401 is more uniform.

[0097] Optionally, multiple adjusting baffles 304 are arranged at circumferential intervals along the air inlet 102.

[0098] Optionally, such as Figure 17As shown, the adjusting ring 301 is annular, and the fan 401 also includes a driving device. The driving device is driven to the adjusting ring 301 and is used to drive the adjusting ring 301 to move circumferentially along the air inlet 102, so as to drive the adjusting ring 301 to reciprocate radially along the air inlet 102.

[0099] In this embodiment, the adjusting ring 301 is annular, so it does not affect the air intake of the fan 401. Furthermore, the adjusting ring 301 is driven by a driving device, allowing it to move circumferentially along the air inlet 102. This causes the sliding hole 302 to apply force to the sliding post 305. Since the sliding post 305 and the adjusting baffle 304 are fixed in the circumferential position of the air inlet 102, and the sliding hole 302 is inclined, the sliding post 305 moves radially along the air inlet 102 under the action of the sliding hole 302. This achieves the radial reciprocating motion of the adjusting baffle 304.

[0100] Optionally, the outer peripheral wall of the adjusting ring 301 is provided with a rack portion 3011, and the driving device includes a transmission gear 308 and a drive motor 309. The transmission gear 308 meshes with the rack portion 3011; the drive motor 309 is drivenly connected to the transmission gear 308, and the drive motor 309 drives the adjusting ring 301 to move through the transmission gear 308 and the rack portion 3011, so that the adjusting ring 301 drives the adjusting baffle 304 to move.

[0101] In this embodiment, the adjusting ring 301 meshes with the drive device via the transmission gear 308 and the rack portion 3011. This ensures stable transmission characteristics for both the adjusting ring 301 and the drive device, enabling smooth movement over a wide speed range. Even under high load or high speed conditions, transmission stability and reliability are guaranteed, reducing vibration and impact. Furthermore, the meshing transmission of the transmission gear 308 and the rack portion 3011 provides a precise transmission ratio, ensuring highly accurate control of the adjusting ring 301's speed and position, thus enabling precise adjustment of the air intake volume of the air inlet 102.

[0102] Optionally, air inlets 102 are provided at both opposite ends of the volute 10, and each air inlet 102 is provided with an adjustment mechanism 30.

[0103] In this embodiment of the disclosure, when both ends of the volute 10 are provided with air inlets 102, each air inlet 102 is provided with an adjustment mechanism 30, so that the air intake volume of the two air inlets 102 at both ends of the volute 10 can be adjusted. The air intake volume of the two air inlets 102 can be the same or different, which further improves the adjustment of the air intake volume of the fan 401, thereby improving the versatility of the air conditioner.

[0104] This disclosure also provides an air conditioner, which includes a fan as described in any of the above embodiments.

[0105] The air conditioner provided in this disclosure includes the fan of any of the above embodiments, and therefore has the beneficial effects of the fan of any of the above embodiments, which will not be repeated here.

[0106] Optionally, fan 401 is a centrifugal fan.

[0107] Alternatively, the air conditioner can be a ducted unit, a cabinet unit, a wall-mounted unit, etc. Any type of air conditioner that can use a centrifugal fan is an optional embodiment of this application.

[0108] Optionally, when the air conditioner is a ducted unit, the ducted unit includes a housing, a heat exchanger, and a fan. The housing has a heat exchange inlet and a heat exchange outlet. The heat exchanger and the fan are arranged sequentially inside the housing along the airflow direction. The fan can drive the airflow in the heat exchange inlet to exchange heat with the heat exchanger and then flow out from the heat exchange outlet.

[0109] Optionally, the duct unit also includes a motor connected to a fan drive. The motor drives the fans, and there are two fans, each connected to a motor. The two fans are driven by a single motor.

[0110] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A fan, characterized by, The fan comprises: a volute defining an impeller cavity having an air inlet and an air outlet; an adjusting mechanism arranged at the air inlet, the adjusting mechanism comprising a plurality of adjusting flaps and an adjusting ring, the adjusting flaps being movably connected to the volute, the plurality of adjusting flaps being arranged at an outer edge of the air inlet in a circumferential direction of the air inlet, the adjusting ring being provided with sliding holes, and the adjusting flaps being slidably located in the sliding holes; wherein the sliding holes are arranged in an inclined manner in the circumferential direction of the air inlet, and when the adjusting flaps slide along the sliding holes, the plurality of adjusting flaps reciprocate in a radial direction of the air inlet to adjust an air passage area of the air inlet.

2. The fan according to claim 1, wherein the adjusting flaps are provided with sliding columns slidably located in the sliding holes, the sliding holes comprise a first end and a second end, and a distance between the first end and a center of the air inlet is greater than a distance between the second end and the center of the air inlet; wherein the sliding columns are movable between the first end and the second end, the air passage area of the air inlet is a first area when the sliding columns move to the first end, and the air passage area of the air inlet is a second area when the sliding columns move to the second end, the first area being greater than the second area.

3. The fan according to claim 2, wherein the sliding holes are in an arc shape, and when the sliding columns move from the first end to the second end, the sliding columns drive the adjusting flaps to move in a direction towards the center of the air inlet, and when the sliding columns move from the second end to the first end, the sliding columns drive the adjusting flaps to move in a direction away from the center of the air inlet.

4. The fan according to claim 1, wherein the adjusting flaps are slidably connected to the volute.

5. The fan according to claim 4, wherein one of the adjusting flaps and the volute is provided with a sliding groove, and the other of the adjusting flaps and the volute is provided with a protrusion, the protrusion and the sliding groove are located outside the air inlet in the circumferential direction and extend in the radial direction of the air inlet, and the protrusion is slidably located in the sliding groove.

6. The fan according to claim 1, wherein at least part of the adjusting flaps abut against the volute; and / or a depth of the adjusting flaps in the air inlet matches a wall surface of the volute facing the air inlet.

7. The fan according to claim 1, wherein the adjusting ring is in a ring shape, and the fan further comprises: a driving device drivingly connected to the adjusting ring, for driving the adjusting ring to move in the circumferential direction of the air inlet to drive the adjusting flaps to reciprocate in the radial direction of the air inlet.

8. The fan according to claim 7, wherein an outer peripheral wall of the adjusting ring is provided with a rack portion, and the driving device comprises: a transmission gear meshing with the rack portion; and a driving motor drivingly connected to the transmission gear, for driving the adjusting ring to move through the transmission gear and the rack portion to drive the adjusting flaps to move.

9. The fan according to any one of claims 1 to 8, wherein the volute is provided with air inlets at opposite ends, and each air inlet is provided with an adjusting mechanism.

10. An air conditioner characterized by comprising: The fan comprises the fan according to any one of claims 1 to 9.

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