air conditioner

Abstract

This application relates to the field of household appliance technology and discloses an air conditioner, including: a body, a fan, and an annular air guide. The top of the body has a circular through-hole; the fan is disposed within the body and has an air outlet, the air outlet being connected to the through-hole via the side wall of the through-hole; the annular air guide is rotatably disposed within the through-hole, coaxially arranged with the through-hole, and includes multiple blades that guide airflow towards the front of the through-hole, so that the airflow from the air outlet, after being blown towards the annular air guide, drives the annular air guide to rotate relative to the body, forming an air outlet towards the front of the through-hole. In this application, the annular air guide can dynamically disperse the airflow within the through-hole, making the airflow blown out of the through-hole more dispersed, with relatively small airflow velocity loss and relatively high indoor heat exchange efficiency.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, such as an air conditioner. Background Technology

[0002] Currently, air conditioners are widely used temperature control devices, commonly found in homes, offices, and other places. When the indoor temperature is high, the indoor unit exchanges heat with the indoor air, absorbing heat and transferring it to the outside, thus achieving a cooling effect. However, because the airflow from the indoor unit has a significant temperature difference from the room temperature, it can easily cause discomfort.

[0003] One related technology includes an air conditioner comprising an indoor unit and a deflector. The indoor unit has an air outlet with a deflector, and the deflector is positioned outside the air outlet and connected to the indoor unit; the deflector has multiple through holes. The airflow from the outlet is dispersed through these through holes, forming multiple streams of air, reducing airflow speed, minimizing the feeling of draft, and improving comfort.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art: The airflow deflector is statically installed at the air outlet, which obstructs the airflow and results in significant wind speed loss, leading to relatively low indoor heat exchange efficiency.

[0005] 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

[0006] 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.

[0007] This disclosure provides an air conditioner to improve indoor heat exchange efficiency.

[0008] In some embodiments, the air conditioner includes: a body, a fan, and an annular air guide. The top of the body has a circular through-hole; the fan is disposed within the body and has an air outlet, the air outlet being connected to the through-hole via the sidewall of the through-hole; the annular air guide is rotatably disposed within the through-hole, coaxially arranged with the through-hole, and includes multiple blades that guide airflow towards the front of the through-hole, so that the airflow from the air outlet blows towards the annular air guide, driving the annular air guide to rotate relative to the body, thus forming an air outlet towards the front of the through-hole.

[0009] Optionally, the annular guide includes a first cone. The first cone is rotatably disposed within the through hole and located behind the air outlet; wherein, multiple blades are fixedly connected to the first cone along its circumference, and the front end of each blade protrudes from the front side of the first cone, so that the airflow from the air outlet can blow towards the front end of some blades, driving the multiple blades and the first cone to rotate relative to the machine body.

[0010] Optionally, the front end of each blade is fixedly connected to the second cone, and the maximum diameter of the second cone is smaller than the minimum diameter of the first cone.

[0011] Optionally, each blade is fixedly connected to the inner wall of the first cone, and the rear end of each blade is fixedly connected to the outer wall of the second cone.

[0012] Optionally, multiple blades are arranged at an angle along the circumference of the first cone.

[0013] Optionally, an air outlet housing is provided on one side of the fan, the air outlet housing is located on the outer front end of the annular guide, and the air outlet hole is located on the air outlet housing.

[0014] Optionally, there is a gap between the air outlet housing and the front end of the annular guide.

[0015] Optionally, a connecting pipe is provided on the bottom side of the air outlet housing.

[0016] Optionally, the flow rate at the front end of the through hole is greater than the flow rate at the rear end of the through hole.

[0017] Optionally, the direction of airflow from the air outlet is perpendicular to the axis of the through hole.

[0018] The air conditioner provided in this disclosure can achieve the following technical effects: Airflow from the fan is blown into the through-hole through the outlet, and the airflow from the outlet drives the annular guide vane to rotate relative to the fan body. Multiple blades follow this rotation, guiding the airflow from the through-hole into the room. The annular guide vane dynamically disperses the airflow within the through-hole, resulting in a more dispersed airflow, less airflow velocity loss, and higher indoor heat exchange efficiency. Furthermore, indoor air can be drawn into the through-hole from its rear end, where the airflow from the outlet mixes with the indoor air and is further dispersed by the annular guide vane, resulting in a more uniform mixture. This reduces the temperature difference between the airflow from the through-hole and the room temperature, improving comfort.

[0019] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0020] 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: Figure 1 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the structure of an annular flow guide provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of another annular flow guide provided in an embodiment of this disclosure; Figure 4 This is a schematic diagram of the internal structure of an air conditioner provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the internal structure of an air conditioner provided in an embodiment of this disclosure; Figure 6 This is a schematic diagram of the internal structure of an air conditioner provided in an embodiment of this disclosure; Figure 7 This is an exploded view of an air conditioner structure diagram provided in an embodiment of this disclosure.

[0021] Figure label: 100. Body; 101. Through hole; 102. Air outlet; 103. Air inlet; 200. Annular guide; 110. Third cone; 120. Air outlet housing; 121. Connecting pipe; 130. Fan; 140. Cover plate; 210. First cone; 211. First limiting strip; 212. Second limiting strip; 220. Blade; 230. Second cone. Detailed Implementation

[0022] 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.

[0023] 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 the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] 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.

[0025] 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.

[0026] Unless otherwise stated, the term "multiple" means two or more.

[0027] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0028] 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.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0030] Combination Figure 1-4 As shown, this embodiment of the present disclosure provides an air conditioner including: a body 100, a fan 130, and an annular air guide 200. The body 100 has a circular through hole 101 at its top; the fan 130 is disposed inside the body 100 and has an air outlet 102, which is connected to the through hole 101 by the side wall of the through hole 101; the annular air guide 200 is rotatably disposed inside the through hole 101 and is coaxially disposed with the through hole 101, and the annular air guide 200 includes a plurality of blades 220 that guide air to the front side of the through hole 101, so that the airflow blown out of the air outlet 102 blows towards the annular air guide 200, driving the annular air guide 200 to rotate relative to the body 100 and forming an air outlet to the front side of the through hole 101.

[0031] In the air conditioner provided in this embodiment, the airflow from the fan 130, originating from the air outlet 102, is blown into the through-hole 101. The airflow from the air outlet 102 causes the annular guide 200 to rotate relative to the body 100, and multiple blades 220 follow suit, guiding the airflow within the through-hole 101 into the room. The annular guide 200 dynamically disperses the airflow within the through-hole 101, resulting in a more dispersed airflow, less airflow velocity loss, and relatively higher indoor heat exchange efficiency. Furthermore, indoor air can be drawn into the through-hole 101 from its rear end. The airflow from the air outlet 102 mixes with the indoor air within the through-hole 101 and is further dispersed by the annular guide 200, resulting in a more uniform mixture of the two airflows. This reduces the temperature difference between the airflow from the through-hole 101 and the room temperature, improving comfort.

[0032] Understandably, the side of the machine 100 facing away from the wall and towards the user is the front side, the side of the machine 100 facing the wall and away from the user is the rear side, the side of the machine 100 located to the right of the user is the right side, and the side of the machine 100 located to the left of the user is the left side.

[0033] Combination Figure 2 and Figure 3 As shown, optionally, the annular guide 200 includes a first cone 210. The first cone 210 is rotatably disposed within the through hole 101 and located behind the air outlet 102; wherein, a plurality of blades 220 are fixedly connected to the first cone 210 along the circumference of the first cone 210, and the front end of each blade 220 protrudes from the front side of the first cone 210, so that the airflow blown out of the air outlet 102 can blow towards the front end of part of the blades 220, driving the plurality of blades 220 and the first cone 210 to rotate relative to the body 100. Thus, when airflow is blown out of the air outlet 102, the airflow blows the blades 220 at the air outlet 102, thereby driving the plurality of blades 220 and the first cone 210 to rotate synchronously. The plurality of blades 220 rotate and dynamically disperse and guide the airflow in the through hole 101, directing the airflow to the front side of the body 100, so that the airflow in the through hole 101 is dispersed and blown out towards the front side of the body 100. Reduce user discomfort from direct airflow and improve the gentleness of the airflow.

[0034] Optionally, the distance between the side of each blade 220 facing away from the axis of the first cone 210 and the axis of the first cone 210 gradually decreases, so that each blade 220 gradually narrows from back to front. In this way, when the blade 220 rotates to the air outlet 102, the airflow blown out of the air outlet 102 can smoothly enter the front end of the blade 220, reducing flow resistance, better guiding the airflow toward the front side of the body 100, and the blade 220 disperses the airflow in the through hole 101, thereby improving the driving efficiency.

[0035] Optionally, the front end of each blade 220 is fixedly connected to the second cone 230, and the maximum diameter of the second cone 230 is smaller than the minimum diameter of the first cone 210. In this way, since the end of the blade 220 facing away from the second cone 230 lacks a fixed measure or structure, there is a greater risk of swaying during the rotation of the blade 220. Connecting the front end of each blade 220 to the second cone 230 effectively enhances the structural stability of the front end of the blade 220, reduces the risk of swaying during rotation, and ensures smooth and reliable operation.

[0036] Specifically, the first cone 210 and the second cone 230 are coaxially aligned. This ensures coaxiality between the two cones, resulting in uniform force distribution on the blades 220 during rotation and reducing vibration and noise caused by eccentricity. Simultaneously, the airflow is more stable along the axial direction, contributing to improved noise reduction and airflow stability of the entire unit.

[0037] Optionally, the diameter of the front end of the first cone 210 is larger than the diameter of the rear end. This gives the first cone 210 a tapered structure that is larger at the front and smaller at the rear, effectively expanding the installation space for the blades 220 and making the blades 220 more evenly distributed circumferentially. When the indoor airflow passes through the first cone 210 and converges with the airflow blown out of the air outlet 102, the larger space at the front end of the first cone 210 facilitates airflow diffusion and flow.

[0038] Optionally, the diameter of the front end of the second cone 230 is larger than the diameter of the rear end of the second cone 230. In this way, the second cone 230 also has a conical structure that is larger at the front and smaller at the rear, similar to the structure of the first cone 210, and forms an airflow channel that expands in the same direction as the first cone 210, which reduces the resistance to the airflow in the through hole 101 while ensuring the structural stability of the blade 220.

[0039] Optionally, the front end of the first cone 210 is provided with a first limiting strip 211, and the rear end of the first cone 210 is provided with a second limiting strip 212. Both the first limiting strip 211 and the second limiting strip 212 are rotatably connected to the machine body 100 to limit the displacement of the first cone 210 relative to the machine body 100. In this way, the first limiting strip 211 and the second limiting strip 212 work together to provide a limit for the stable rotation of the first cone 210 within the machine body 100, reducing the risk of axial displacement of the first cone 210 during rotation.

[0040] Optionally, each blade 220 is fixedly connected to the inner wall of the first cone 210, and the rear end of each blade 220 is fixedly connected to the outer wall of the second cone 230. This connection between each blade 220 and the inner wall of the first cone 210 reduces the risk of interference or scratches between the blade 220 and the body 100, resulting in a more rational layout. The connection between each blade 220 and the outer wall of the second cone 230 ensures that both ends of each blade 220 are firmly fixed. Furthermore, the airflow guided by the blades 220 flows from the inner wall of the first cone 210 to the outer wall of the second cone 230, forming a continuous and stable flow path, allowing for a smooth transition of airflow between the inner and outer walls.

[0041] Optionally, multiple blades 220 are arranged at an angle along the circumference of the first cone 210. In this way, each blade 220 is arranged at an angle, which makes it easier for the airflow from the air outlet 102 to blow the blade 220 and drive it to rotate, thereby improving the effect of dispersing the airflow.

[0042] Optionally, the first cone 210 and / or the second cone 230 are made of plastic. In this way, the first cone 210 and the second cone 230 made of plastic are lightweight, corrosion-resistant, and easy to mold, which reduces the overall weight of the machine body 100, reduces the driving force required for the airflow to blow the blades 220, and reduces energy consumption.

[0043] Understandably, the plastic can be ABS engineering plastic (acrylonitrile-butadiene-styrene copolymer), or other types of known plastic materials.

[0044] Optionally, the first cone 210, the second cone 230, and the plurality of blades 220 are made of transparent plastic. In this way, the transparent first cone 210, the second cone 230, and the plurality of blades 220 have better overall integrity and better light transmission within the through hole 101.

[0045] Optionally, the first cone 210, the second cone 230, and the multiple blades 220 are integrally formed. In this way, the first cone 210, the second cone 230, and the multiple blades 220 are manufactured through an integral forming process, resulting in a more compact structure, higher connection strength, avoiding the fitting errors and loosening risks caused by the assembly of multiple parts, and improving the overall operational stability.

[0046] Combination Figure 4 and Figure 5As shown, optionally, a third cone 110 is provided at the top of the body 100. The rear end of the first cone 210 and the third cone 110 are rotatably connected. The second limiting strip 212 and the third cone 110 slide against each other to limit the displacement of the first cone 210 relative to the body 100 towards the third cone 110. In this way, the sliding contact between the third cone 110 and the second limiting strip 212 works together to limit the axial displacement range of the first cone 210, thereby improving the stability during rotation.

[0047] Specifically, the flow rate at the rear end of the third cone 110 is less than the flow rate at the front end of the third cone 110. Thus, similar to the structure of the first cone 210, the airflow in the third cone 110 flows from back to front, while the flow rate at the front end of the third cone 110 is relatively large, forming a front-end diffusion guiding trend, which helps the airflow to flow smoothly into the through hole 101.

[0048] Optionally, the length of the second cone 230 is greater than or equal to one-tenth of the length of the first cone 210, and less than or equal to one-third of the length of the first cone 210. When the length of the second cone 230 is less than one-tenth of the length of the first cone 210, the second cone 230 is too short and cannot effectively guide the airflow, resulting in a weakened guiding effect. Furthermore, the structural strength of the second cone 230 is relatively low, and the risk of blade 220 swaying is relatively high. When the length of the second cone 230 is greater than one-third of the length of the first cone 210, the second cone 230 is too long, increasing airflow resistance, leading to increased energy consumption, and occupying more internal space, affecting the layout of other components. Therefore, a length of the second cone 230 that is greater than or equal to one-tenth of the length of the first cone 210 and less than or equal to one-third of the length of the first cone 210 is more reasonable, effectively guiding the airflow, ensuring the guiding effect, with relatively low airflow resistance and relatively less space occupied.

[0049] Optionally, the length of the second cone 230 is equal to one-fifth the length of the first cone 210. This effectively guides the airflow, ensuring the guiding effect, with relatively low airflow resistance and less space required.

[0050] Optionally, an air outlet housing 120 is provided on one side of the fan 130. The air outlet housing 120 is located on the outer front end of the annular guide 200, and the air outlet 102 is provided on the air outlet housing 120. In this way, the air outlet housing 120 is fitted on the outer side of the annular guide 200 to form an annular cover, reducing the risk of airflow overflowing from the air outlet 102.

[0051] Specifically, the front ends of the air outlet housing 120 and the first cone 210 are rotatably connected, and the first limiting strip 211 slides against the air outlet housing 120 to limit the displacement of the first cone 210 relative to the body 100 towards the air outlet housing 120. In this way, the air outlet housing 120 and the first limiting strip 211 work together to limit the axial displacement of the first cone 210, thereby improving the stability of the rotation of the first cone 210.

[0052] Understandably, the air outlet housing 120 and the body 100 are assembled using conventional fixed connection methods, such as screw fastening, snap-fit ​​connection or welding.

[0053] Understandably, the air outlet housing 120 is fitted onto the front end of the first cone 210, and the third cone 110 is fitted onto the rear end of the first cone 210, together providing upward support for the first cone 210.

[0054] Specifically, the third cone 110, the first cone 210, and the air outlet housing 120 together enclose the through hole 101. In this way, the airflow in the room flows from the third cone 110 to the first cone 210, and then passes through the air outlet housing 120 and is blown into the room to form a circulating airflow channel, which effectively improves the air circulation efficiency.

[0055] Optionally, there is a gap between the air outlet housing 120 and the front end of the annular guide 200. This avoids direct contact between the air outlet housing 120 and the front end of the annular guide 200, reduces rotational frictional resistance, and also reduces the resistance to the airflow blowing outward in the air outlet housing 120, further improving the smoothness and stability of the airflow output.

[0056] Optionally, the distance between the air outlet housing 120 and the front end of the annular guide 200 gradually increases. In this way, as the airflow flows towards the front of the air outlet housing 120, the cross-sectional area of ​​the airflow channel gradually expands, effectively reducing the attenuation of airflow velocity.

[0057] Optionally, a connecting pipe 121 is provided on the bottom side of the air outlet housing 120. In this way, the air outlet housing 120 is connected to the fan 130 via the connecting pipe 121, and the connection distance is relatively long, allowing the fan 130 to be set relatively low. This lowers the center of gravity of the fan 130, reduces the overall center of gravity, and improves stability.

[0058] Specifically, the connecting pipe 121 is connected to the air supply end of the fan 130. In this way, the connecting pipe 121 smoothly guides the airflow generated by the fan 130 into the air outlet housing 120, and then blows it through the air outlet 102 to multiple blades 220, driving the blades 220, the first cone 210 and the second cone 230 to rotate, thus dispersing the airflow in the through hole 101.

[0059] Optionally, the flow rate at the front end of the through hole 101 is greater than the flow rate at the rear end of the through hole 101. In this way, since the airflow from the room and the airflow from the outlet hole 102 converge at the front end of the through hole 101, the flow rate at the front end of the through hole 101 is relatively large, which can accommodate more airflow and reduce the risk of turbulence and increased energy loss caused by sudden changes in flow rate.

[0060] Optionally, the direction of airflow from the air outlet 102 is perpendicular to the axis of the through hole 101. In this way, the airflow ejected from the air outlet 102 impacts the blade 220 in a direction perpendicular to the axis of the through hole 101, providing lateral thrust to the blade 220, effectively driving the blade 220 to rotate around the axis, and causing the first cone 210 and the second cone 230 to rotate synchronously, thereby enhancing the airflow dispersion effect.

[0061] Combination Figure 6 As shown, optionally, an air inlet 103 is provided on the side wall of the unit 100. In this way, indoor air can enter the interior of the unit 100 through the air inlet 103, be accelerated by the fan 130 and then ejected from the air outlet 102, forming a high-efficiency airflow circulation.

[0062] Optionally, air inlets 103 are provided on both opposite side walls of the body 100. This results in a relatively large number of air inlets 103, which helps to increase the total air intake, increase the direction and range of air circulation coverage, and improve air circulation efficiency.

[0063] Combination Figure 6 and Figure 7 As shown, optionally, the body 100 is provided with a cover plate 140 on each side, and the cover plate 140 is used to cover the air inlet 103. In this way, the air inlet 103 can be covered by the cover plate 140, preventing external dust from entering the body 100 when indoor heat exchange is not required.

[0064] Understandably, the cover plate 140 and the body 100 can be achieved using conventional methods such as snaps, screws, or magnetic attachment.

[0065] Specifically, there are two covers 140, which are located on opposite sides of the body 100. In this way, the number of covers 140 corresponds to the number of air inlets 103. The covers 140 can cover the air inlets 103, preventing external dust from entering the body 100 when indoor heat exchange is not required, thus improving the user experience.

[0066] Optionally, the rear side of the unit 100 gradually narrows. This makes the rear side of the unit 100 relatively narrow, which makes it easier to place the unit 100 in a corner of an indoor space, saving indoor space, while optimizing the air circulation path by utilizing the airflow characteristics of the corner.

[0067] Specifically, the width of the rear side of the machine body 100 is smaller than the width of the middle part of the machine body 100.

[0068] Specifically, the width of the front side of the body 100 is smaller than the width of the middle part of the body 100.

[0069] 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. An air conditioner, characterized in that, include: The body (100) has a circular through hole (101) at the top. A fan (130) is installed inside the body (100) and has an air outlet (102). The air outlet (102) is connected to the through hole (101) by the side wall of the through hole (101). An annular guide (200) is rotatably disposed inside the through hole (101) and is coaxially disposed with the through hole (101). The annular guide (200) includes multiple blades (220) that guide air to the front side of the through hole (101). After the airflow blown out of the air outlet (102) blows towards the annular guide (200), the annular guide (200) is driven to rotate relative to the body (100) and form an air outlet to the front side of the through hole (101).

2. The air conditioner according to claim 1, characterized in that, The annular guide (200) includes: The first cone (210) is rotatably disposed in the through hole (101) and located behind the air outlet (102); Multiple blades (220) are fixedly connected to the first cone (210) along the circumference of the first cone (210), and the front end of each blade (220) protrudes from the front side of the first cone (210) so that the airflow blown out of the air outlet (102) can blow towards the front end of some blades (220), driving multiple blades (220) and the first cone (210) to rotate relative to the body (100).

3. The air conditioner according to claim 2, characterized in that, The front end of each blade (220) is fixedly connected to the second cone (230), and the maximum diameter of the second cone (230) is smaller than the minimum diameter of the first cone (210).

4. The air conditioner according to claim 2, characterized in that, Each blade (220) is fixedly connected to the inner wall of the first cone (210), and the rear end of each blade (220) is fixedly connected to the outer wall of the second cone (230).

5. The air conditioner according to claim 2, characterized in that, Multiple blades (220) are arranged obliquely along the circumference of the first cone (210).

6. The air conditioner according to claim 1, characterized in that, The fan (130) has an air outlet housing (120) on one side. The air outlet housing (120) is located on the outer side of the front end of the annular guide (200), and the air outlet hole (102) is located on the air outlet housing (120).

7. The air conditioner according to claim 6, characterized in that, There is a gap between the air outlet housing (120) and the front end of the annular guide (200).

8. The air conditioner according to claim 6, characterized in that, The bottom side of the air outlet housing (120) is provided with a connecting pipe (121).

9. The air conditioner according to any one of claims 1 to 8, characterized in that, The flow rate at the front end of the through hole (101) is greater than the flow rate at the rear end of the through hole (101).

10. The air conditioner according to any one of claims 1 to 8, characterized in that, The direction of air outlet (102) is perpendicular to the axis of through hole (101).

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