Air conditioner

Abstract

The utility model discloses an air conditioner which comprises a machine body, an air flow cavity is formed in the machine body, and the machine body is provided with an air inlet and an air outlet which are respectively communicated with the air flow cavity. The centrifugal wind wheel is rotatably installed in the airflow cavity and comprises a wheel body and a plurality of fan blades, the fan blades are sequentially distributed in the circumferential direction of the wheel body at intervals, a blade channel is formed between every two adjacent fan blades, a flow dividing notch is formed in the end, away from the center of the wheel body, of each fan blade, and the flow dividing notch is communicated with the flow dividing cavity. And every two adjacent blade channels are communicated through the corresponding flow dividing notches. According to the air conditioner, the flow dividing notches are formed in the fan blades of the centrifugal wind wheel, every two adjacent blade channels can be communicated, the power capability of the fan blades can be improved, the working efficiency of the centrifugal wind wheel can be improved, and noise generated by the air conditioner can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning manufacturing, in particular to an air-conditioner. Background Art

[0002] Currently, window air conditioners still have a huge market overseas due to their ease of installation and small space requirements. Window air conditioners are compact in structure, with the indoor and outdoor units integrated into one. Axial fans are often used on the outdoor side, while cross-flow or centrifugal fans are often used on the indoor side. Centrifugal fans are widely used due to their large air volume and strong pressure resistance. However, it is a common consensus in the industry that centrifugal fans are less efficient. In addition, due to the lack of space for window air conditioners, centrifugal fans face significant resistance to both air inlet and outlet. Some products even cut off a portion of the centrifugal volute to ensure sufficient installation space, further reducing the efficiency of the centrifugal fan. As part of a window air conditioner, the lower efficiency of the centrifugal fan will hinder the energy efficiency of the entire air conditioning product, leaving room for improvement. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an air conditioner that can improve the work capacity of the fan blades, thereby improving the working efficiency of the centrifugal fan wheel, and reducing the noise generated by the air conditioner.

[0004] According to an embodiment of the present invention, the air conditioner includes: a body, an air flow cavity is formed in the body, and the body is provided with an air inlet and an air outlet respectively connected to the air flow cavity; a centrifugal wind wheel, the centrifugal wind wheel is rotatably installed in the air flow cavity, the centrifugal wind wheel includes a wheel body and a plurality of blades, the plurality of blades are distributed in sequence along the circumference of the wheel body, a blade channel is formed between two adjacent blades, and the blade is provided with a diversion notch at one end away from the center of the wheel body, and the diversion notch connects two adjacent blade channels.

[0005] According to the air conditioner of the embodiment of the present invention, by setting a diverter gap on the fan blade of the centrifugal fan wheel, every two adjacent blade channels can be connected by using the diverter gap, thereby improving the working capacity of the fan blade, improving the working efficiency of the centrifugal fan wheel, and reducing the noise generated by the air conditioner.

[0006] According to some embodiments of the air conditioner of the present invention, a vortex zone is formed in the blade channel at one end away from the center of the wheel body, and the diversion gap connects the vortex zones of two adjacent blade channels.

[0007] According to some embodiments of the air conditioner of the present invention, the maximum depth of the diversion gap is D, and there are n blade channels, and the radial dimensions of the vortex zones corresponding to the n blade channels are W1, W2, W3,..., Wn, respectively, and satisfy: D = (W1+W2+W3+...+Wn) / n.

[0008] According to some embodiments of the air conditioner of the present invention, the opening width of the diversion gap is configured to gradually increase from the inside to the outside along the radial direction of the wheel body.

[0009] According to some embodiments of the air conditioner of the present invention, the width of the end of the fan blade away from the center of the wheel body is H1, and the maximum width of the diversion gap is H2, which satisfies the following: 0.25≤H2 / H1<0.5.

[0010] According to some embodiments of the air conditioner of the present invention, the diverter notch is spaced apart from both side edges of the fan blade, and the distances between the diverter notch and both side edges of the fan blade are different.

[0011] According to some embodiments of the air conditioner of the present invention, the inner wall of the diversion gap includes a first straight wall, a curved connecting wall and a second straight wall, the first straight wall is separated from the second straight wall and is distributed in an open shape, and the curved connecting wall is connected between the first straight wall and the second straight wall.

[0012] According to some embodiments of the air conditioner of the present invention, the arc-shaped connecting wall is constructed as an arc-shaped wall, and is tangent to the first straight wall and the second straight wall respectively.

[0013] According to some embodiments of the air conditioner of the present invention, the diversion notches of the plurality of fan blades are distributed opposite each other along the circumference of the wheel body.

[0014] According to some embodiments of the air conditioner of the present invention, the end of the fan blade away from the center of the wheel body is constructed as a straight end, and the diversion gap is formed by cutting at the straight end.

[0015] According to the air conditioner of some embodiments of the present invention, the maximum depth of the diverter gap is smaller than the maximum width of the diverter gap.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is an exploded schematic diagram of an air conditioner according to an embodiment of the present utility model;

[0019] Figure 2 This is a structural schematic diagram of a centrifugal fan wheel of an air conditioner according to an embodiment of the present utility model;

[0020] Figure 3 is a cross-sectional view of a centrifugal impeller of an air conditioner according to an embodiment of the present utility model;

[0021] Figure 4 The figure is a graph showing the air volume and power of the centrifugal fan wheel of the air conditioner according to the embodiment of the present utility model.

[0022] Reference numerals:

[0023] air conditioner 100,

[0024] Body 10, air inlet 11, air outlet 12, centrifugal impeller 13, wheel body 131, fan blades 132, diversion gap 133, first straight wall 134, arc-shaped connecting wall 135, second straight wall 136, straight end 137, blade channel 138, filter bracket 14, heat exchanger 15, air outlet guide vane 16, centrifugal volute 17, motor 18. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] Reference below Figures 1-4 The air conditioner 100 according to an embodiment of the present invention is described. By providing a diverter notch 133 on the fan blade 132 and utilizing the diverter notch 133 to connect two adjacent blade channels 138, the working capacity of the fan blade 132 is improved, thereby improving the working efficiency of the centrifugal fan wheel 13 and reducing the noise generated by the air conditioner 100.

[0029] like Figure 1 As shown, an air conditioner 100 according to an embodiment of the present invention includes: a body 10 and a centrifugal fan wheel 13.

[0030] An airflow cavity is formed within the body 10, and the body 10 is provided with an air inlet 11 and an air outlet 12, each of which is in communication with the airflow cavity. Specifically, the body 10 is the outer shell of the air conditioner 100, and the air inlet 11 and the air outlet 12 are provided on the body 10. The air inlet 11 is used to allow air outside the body 10 to enter the body 10, and the air outlet 12 is used to exhaust hot air or cold air generated inside the body 10 to the outside of the body 10. The air inlet 11 and the air outlet 12 are both in communication with the airflow cavity. That is, the air entering the body 10 through the air inlet 11 will enter the airflow cavity and flow within the airflow cavity until it flows to the air outlet 12 and is discharged to the outside of the body 10.

[0031] For example, Figure 1 As shown, the body 10 can be constructed as a square shell, and the air inlet 11 and the air outlet 12 are both arranged on the outer side of the body 10, that is, they can be arranged on the front side, left side or right side of the body 10, and the air outlet 12 is arranged on the front side of the body 10. Setting the air outlet 12 only on the front side can ensure the centralization of the air supply of the air conditioner 100 and improve the air supply efficiency. In addition, the air inlet 11 and the air outlet 12 are both set as strip holes, and are both set in multiple numbers to improve the efficiency of air intake and air outlet.

[0032] The centrifugal fan wheel 13 is rotatably installed in the air flow cavity. The centrifugal fan wheel 13 includes a wheel body 131 and a plurality of blades 132. The plurality of blades 132 are spaced apart and distributed in sequence along the circumference of the wheel body 131. A blade channel 138 is formed between two adjacent blades 132. The blade 132 is provided with a diverter notch 133 at one end away from the center of the wheel body 131. The diverter notch 133 connects the two adjacent blade channels 138.

[0033] Specifically, the centrifugal wind wheel 13 is used to increase the gas pressure and flow rate entering the centrifugal wind wheel 13 through its own rotation, and discharge the gas to the outside of the body 10, wherein the centrifugal wind wheel 13 includes a wheel body 131, the wheel body 131 is configured to be rotatable, and a plurality of blades 132 are arranged on the circumference of the wheel body 131, and the plurality of blades 132 are arranged on the wheel body 131 at intervals and connected to the wheel body 131, that is, the blades 132 can be driven by the wheel body 131 to rotate with the The wheel body 131 rotates together, and the wheel body 131 and the fan blades 132 both rotate around the central axis of the wheel body 131. At the same time, a blade channel 138 is formed between two adjacent fan blades 132. The gas entering the air flow cavity can enter the blade channel 138 and be sent to the air outlet 12 in the blade channel 138 as the fan blades 132 rotate. That is, the gas entering the air inlet 11 can be sent to the air outlet 12 in the blade channel 138, and then can be discharged to the outside of the body 10.

[0034] In addition, a diverter notch 133 is provided on the fan blade 132. The diverter notch 133 is provided on the side of the fan blade 132 away from the center of the wheel body 131, and is used to connect the two adjacent blade channels 138, that is, to connect the gas in the two adjacent blade channels 138 to change the flow direction and flow velocity of the gas in the blade channels 138, thereby improving the working capacity of the fan blade 132, improving the efficiency of the centrifugal fan wheel 13, and reducing the noise generated by the air conditioner 100.

[0035] The number of the fan blades 132 may be two, three or more. As the number of the fan blades 132 increases, the air supply effect may be improved.

[0036] It should be noted that the interior of the body 10 also includes a filter bracket 14, a heat exchanger 15, an air outlet guide vane 16, a centrifugal volute 17 and a motor 18, wherein the filter bracket 14 is used to install the filter, the heat exchanger 15 is used to exchange heat with the gas entering the interior of the body 10, the air outlet guide vane 16 is used to guide the gas when supplying air, and the centrifugal volute 17 is used to accelerate and transfer the airflow.

[0037] Specifically, external air enters the interior of the body 10 through the air inlet 11, is first filtered at the filter, then enters the air flow chamber, and flows toward the air outlet 12 under the action of the centrifugal impeller 13 and the centrifugal volute 17. Before entering the air outlet 12, it will pass through the heat exchanger 15, fully exchange heat with the heat exchanger 15, and then be sent to the outside of the body 10, achieving the cooling or heating effect of the air conditioner 100.

[0038] Therefore, by setting a centrifugal wind wheel 13 in the body 10 and setting a diversion notch 133 on the fan blade 132 of the centrifugal wind wheel 13, every two adjacent blade channels 138 can be connected, and the gas in every two adjacent blade channels 138 can be connected to change the flow direction and flow velocity of the gas in the blade channel 138, and then as the fan blade 132 rotates, the gas in the blade channel 138 will be sent to the air outlet 12 and further discharged to the outside of the body 10.

[0039] According to the air conditioner 100 of the embodiment of the present invention, by setting a diverter gap 133 on the fan blade 132 of the centrifugal fan wheel 13, every two adjacent blade channels 138 can be connected by using the diverter gap 133, thereby improving the working capacity of the fan blade 132, improving the working efficiency of the centrifugal fan wheel 13, and reducing the noise generated by the air conditioner 100.

[0040] In some embodiments, a vortex zone is formed in the blade channel 138 at one end away from the center of the wheel body 131 , and the diversion gap 133 connects the vortex zones of two adjacent blade channels 138 .

[0041] Specifically, a vortex zone is formed in the blade channel 138, and the gas flow speed in the vortex zone is relatively slow. The vortex zone is formed at one end of the blade channel 138 away from the center of the wheel body 131. By setting a diverter gap 133 on the end of the fan blade 132 away from the center of the wheel body 131, the diverter gap 133 can be used to connect two adjacent vortex zones, and the gas in the two adjacent vortex zones can be connected, so that the flow direction and flow speed of the gas in the vortex zone change, and rotate together with the fan blade 132. At the same time, under the action of the fan blade 132, the pressure and flow speed of the gas are increased, thereby improving the working capacity of the fan blade 132, and at the same time improving the efficiency of the centrifugal fan wheel 13, and reducing the noise generated by the air conditioner 100.

[0042] In some embodiments, the maximum depth of the diverter notch 133 is D, and there are n blade passages 138 , and the radial dimensions of the vortex zones corresponding to the n blade passages 138 are W1, W2, W3, ..., Wn, respectively, and satisfy the following equation: D = (W1 + W2 + W3 + ... + Wn) / n. That is, the maximum depth of the diverter notch 133 is the average radial dimensions of the vortex zones corresponding to all blade passages 138 .

[0043] Specifically, the depth of the diverter gap 133 should be moderate. If it is too large, the cutting area will be too large, and if it is too small, it will be detrimental to the connection between the two adjacent vortex zones, which is not conducive to improving the working capacity of the fan blade 132. At the same time, the depth of the diverter gap 133 is related to the flow state of the internal gas. There are large differences in the gas flow states in different blade channels 138. The size of the vortex zone can be estimated to determine the maximum depth of the diverter gap 133. The radial dimensions W1, W2, W3,..., Wn of the vortex zone in each blade channel 138 can be obtained through simulation results. Taking D = (W1+W2+W3+...+Wn) / n, the depth of the diverter gap 133 can be made as close as possible to the radial dimension of the vortex zone, so that the two adjacent vortex zones can be better connected, thereby improving the working capacity of the fan blade 132 and improving the working efficiency of the centrifugal wind wheel 13.

[0044] In some embodiments, the opening width of the diverter notch 133 is configured to gradually increase from the inside to the outside along the radial direction of the wheel body 131. That is, the opening width of the diverter notch 133 along the radial direction of the wheel body 131 is inconsistent, and the opening width on the side away from the center of the wheel body 131 is greater than the opening width on the side toward the center of the wheel body 131.

[0045] Specifically, if Figure 2-Figure 3 As shown, a diverter notch 133 is provided on the fan blade 132, and the shape of the diverter notch 133 is roughly triangular, that is, the opening width of the diverter notch 133 gradually increases from the side close to the center of the wheel body 131 to the side away from the center of the wheel body 131. The diverter notch 133 can be processed by cutting, that is, it can be cut from the side away from the center of the wheel body 131 to the side close to the center of the wheel body 131, and the cutting width gradually decreases from the outside to the inside. The structure is simple and easy to process.

[0046] Therefore, the diverter notch 133 can be provided by cutting on the fan blade 132 . By providing the diverter notch 133 , the working capacity of the fan blade 132 can be improved, and the working efficiency of the centrifugal wind wheel 13 can be improved.

[0047] In some embodiments, the width of the end of blade 132 away from the center of wheel body 131 is H1, and the maximum width of diverter notch 133 is H2, satisfying the following relationship: 0.25 ≤ H2 / H1 < 0.5. In other words, the width of diverter notch 133 should not be too large or too small. A large width results in a large cutting area, while a small width results in a small interconnected space in the eddy current zone, both of which are detrimental to improving the work capacity of blade 132 and the efficiency of centrifugal impeller 13.

[0048] Specifically, if Figure 3As shown, the maximum width H2 of the diverter notch 133 must be less than or equal to the height of the vortex zone obtained through simulation. Under good intake conditions, the vortex zone is small, and H2 / H1 = 0.25 can be used. Under poor intake conditions, the vortex zone is large, and H2 / H1 = 0.5 can be used. In specific designs, H2 / H1 = 0.3, H2 / H1 = 0.35, or H2 / H1 = 0.4 can also be used, and can be flexibly selected according to the specific intake conditions.

[0049] Therefore, by flexibly selecting the maximum width of the diversion gap 133, the cutting area can be made as small as possible while meeting the requirements of the eddy current zone, thereby improving the work capacity of the fan blade 132 and further improving the working efficiency of the centrifugal impeller 13.

[0050] In some embodiments, the diverter notch 133 is spaced apart from both sides of the blade 132, and the distances between the diverter notch 133 and both sides of the blade 132 are different, that is, the distances between the diverter notch 133 and both sides of the blade 132 are different.

[0051] Specifically, a vortex zone is formed in the blade channel 138, and the vortex zone mainly exists at the top position of the fan blade 132. The diversion gap 133 can be set near the top position of the fan blade 132, so that the vortex zones in adjacent blade channels 138 can be better connected, and then the gas in the vortex zones in adjacent blade channels 138 can be connected to change the flow direction and flow velocity of the gas in the vortex zone, thereby improving the working capacity of the fan blade 132 and improving the efficiency of the centrifugal wind wheel 13.

[0052] It should be noted that the top direction of the fan blade 132 is the direction of the fan blade 132 toward the front side of the body 10.

[0053] In such Figure 2 and Figure 3 In the embodiment shown, the diverter gap 133 is arranged near the top of the fan blade 132, and the maximum width of the diverter gap 133 is less than half the width of the end of the fan blade 132 away from the center of the wheel body 131. The diverter gap 133 can be set in the upper half of the fan blade 132 to increase the space and efficiency of connecting the two adjacent vortex zones, further improve the working capacity of the fan blade 132, and thus improve the efficiency of the centrifugal wind wheel 13.

[0054] In some embodiments, the inner wall of the diverter gap 133 includes a first linear wall 134, a curved connecting wall 135, and a second linear wall 136. The first linear wall 134 and the second linear wall 136 are spaced apart and open, and the curved connecting wall 135 connects between the first linear wall 134 and the second linear wall 136. In other words, the diverter gap 133 is open, and the first linear wall 134 and the second linear wall 136 are respectively connected to the ends of the curved connecting wall 135.

[0055] Specifically, if Figure 3 As shown, the first straight wall 134 and the second straight wall 136 are both connected to the arc-shaped connecting wall 135, and the first straight wall 134 is connected to the upper end of the arc-shaped connecting wall 135, and the second straight wall 136 is connected to the lower end of the arc-shaped connecting wall 135. Transition treatment can be performed at the two connections to avoid scratching the user when installing the fan blade 132, and the first straight wall 134, the arc-shaped connecting wall 135 and the second straight wall 136 together form the inner wall of the diverter gap 133. By setting the diverter gap 133, the working capacity of the fan blade 132 can be improved, and the working efficiency of the centrifugal wind wheel 13 can be improved.

[0056] Therefore, when processing the diverter notch 133 , the first linear wall 134 , the arc-shaped connecting wall 135 and the second linear wall 136 can be formed by cutting. That is, the inner wall of the diverter notch 133 can be formed by cutting, which has a simple structure and is easy to process.

[0057] In some embodiments, the arcuate connecting wall 135 is configured as an arcuate wall and is tangent to the first linear wall 134 and the second linear wall 136. Specifically, configuring the arcuate connecting wall 135 as an arcuate wall can increase the ventilation area of ​​the diverter gap 133. The arcuate connecting wall 135 is tangent to the first linear wall 134 and the second linear wall 136, which can make the connection smooth and flat, avoiding scratches on the user when installing the fan blade 132, and facilitating the processing of the diverter gap 133.

[0058] In some embodiments, the diversion gaps 133 of the plurality of blades 132 are distributed opposite each other along the circumference of the wheel body 131. Specifically, Figure 2-Figure 3 As shown, a plurality of blades 132 are arranged in the circumference of the wheel body 131, and the blades 132 are spaced apart and evenly distributed. At the same time, a diversion notch 133 is provided on each blade 132, and the diversion notch 133 is arranged at the same position of each blade 132, that is, the diversion notch 133 is distributed opposite to each other along the circumference of the wheel body 131, so as to better connect the adjacent vortex areas, thereby improving the working capacity of the blades 132 and improving the working efficiency of the centrifugal wind wheel 13.

[0059] Therefore, by setting diversion gaps 133 on multiple fan blades 132 and setting the diversion gaps 133 relatively to each other, adjacent vortex areas can be better connected, which is beneficial to improving the connection space and connection efficiency of the gas in adjacent vortex areas, thereby improving the working capacity of the fan blades 132 and improving the working efficiency of the centrifugal wind wheel 13.

[0060] In some embodiments, the end of the blade 132 away from the center of the wheel body 131 is configured as a straight end 137, and the diversion gap 133 is cut and formed at the straight end 137. That is, the distance from the end of the blade 132 away from the center of the wheel body 131 from top to bottom is the same.

[0061] Specifically, if Figure 2 and Figure 3 As shown, the fan blades 132 are arranged in the circumference of the wheel body 131, and the width of the fan blades 132 from top to bottom is consistent. When processing the diverter gap 133, it can be cut from the straight end 137 to the end of the fan blade 132 close to the center of the wheel body 131 until the first straight wall 134, the second straight wall 136 and the arc-shaped connecting wall 135 are formed, that is, the diverter gap 133 is formed. In other words, the diverter gap 133 is formed by the straight end 137 and the inner wall of the diverter gap 133.

[0062] Therefore, by cutting from the straight end 137 on the fan blade 132 to form a diverter notch 133, the diverter notch 133 can connect the two adjacent vortex areas, that is, the gas in the two adjacent vortex areas can be connected to change the flow direction and flow velocity of the gas in the vortex area, thereby improving the working capacity of the fan blade 132, and thus improving the working efficiency of the centrifugal wind wheel 13.

[0063] In some embodiments, the maximum depth of the diverter notch 133 is smaller than the maximum width of the diverter notch 133. Specifically, setting the maximum depth of the diverter notch 133 to be smaller than the maximum width of the diverter notch 133 can further reduce the difficulty of processing.

[0064] Among them, it should be noted that a diverter notch 133 is set on the fan blade 132 to connect adjacent vortex zones, but the depth and width of the diverter notch 133 should not be too large. If it is too large, the cutting area will be too large and the strength of the upper part of the fan blade 132 will be reduced. If it is too small, it will be unfavorable for the connection between the vortex zones and will not be conducive to improving the working capacity of the fan blade 132. In addition, when processing the fan blade 132, the cutting is performed from the straight end 137 of the fan blade 132, and the cutting width of the diverter notch 133 gradually decreases from the end of the fan blade 132 away from the center of the wheel body 131 to the end close to the center of the wheel body 131, which can reduce the processing difficulty and avoid a significant reduction in the strength of the fan blade 132.

[0065] Furthermore, it should be noted that the air conditioner 100 of the present invention can improve the working capacity of the blades 132 and enhance the working efficiency of the centrifugal impeller 13 by providing the diversion notch 133 on the blades 132. Specifically, Figure 4 As shown in the figure, when the working air volume is 260CMH, the power can be reduced by 2.4W, a reduction of about 8.3%, which has a more obvious effect.

[0066] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0067] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: include: A body, wherein an airflow cavity is formed in the body, and the body is provided with an air inlet and an air outlet respectively connected to the airflow cavity; A centrifugal wind wheel, which is rotatably installed in the airflow cavity, comprises a wheel body and a plurality of blades, wherein the plurality of blades are distributed in sequence and spaced apart along the circumference of the wheel body, a blade channel is formed between two adjacent blades, and a diversion notch is provided at one end of the blade away from the center of the wheel body, wherein the diversion notch connects two adjacent blade channels.

2. The air conditioner according to claim 1, characterized in that: A vortex zone is formed in the blade channel at one end away from the center of the wheel body, and the diversion gap connects the vortex zones of two adjacent blade channels.

3. The air conditioner according to claim 2, characterized in that: The maximum depth of the diversion notch is D, and there are n blade channels, and the radial dimensions of the vortex zones corresponding to the n blade channels are W1, W2, W3, ..., Wn, respectively, and satisfy: D = (W1+W2+W3+...+Wn) / n.

4. The air conditioner according to claim 1, characterized in that: The opening width of the diversion gap is configured to gradually increase from the inside to the outside along the radial direction of the wheel body.

5. The air conditioner according to claim 1, characterized in that: The width of the end of the blade away from the center of the wheel body is H1, and the maximum width of the diversion gap is H2, which satisfies: 0.25≤H2 / H1<0.

5.

6. The air conditioner according to claim 1, characterized in that: The diversion notch is spaced apart from both side edges of the fan blade, and the distances between the diversion notch and both side edges of the fan blade are different.

7. The air conditioner according to claim 1, characterized in that: The inner wall of the diversion gap includes a first straight wall, an arc-shaped connecting wall and a second straight wall. The first straight wall is separated from the second straight wall and is distributed in an open shape. The arc-shaped connecting wall is connected between the first straight wall and the second straight wall.

8. The air conditioner according to claim 7, characterized in that: The arc-shaped connecting wall is configured as an arc-shaped wall and is tangent to the first straight-line wall and the second straight-line wall respectively.

9. The air conditioner according to claim 1, characterized in that: The flow diversion notches of the plurality of blades are distributed opposite to each other along the circumference of the wheel body.

10. The air conditioner according to claim 1, characterized in that: One end of the blade away from the center of the wheel body is configured as a straight end, and the diversion notch is formed by cutting at the straight end.

11. The air conditioner according to claim 1, characterized in that: The maximum depth of the diverter notch is smaller than the maximum width of the diverter notch.

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