Air conditioner indoor unit and air conditioner

Abstract

This application relates to the field of home appliance technology and discloses an indoor air conditioner unit and an air conditioner, comprising: a housing having an air outlet duct; an air duct component disposed within the housing and forming a fan duct, the fan outlet of the fan duct component being connected to the air outlet duct; a fan disposed within the fan duct; the air duct component including: a volute; a volute tongue, the volute tongue and the volute being spaced apart to form the fan duct; the indoor air conditioner unit further comprising: an air duct partition plate disposed in the air outlet duct, used to divide the air outlet duct into a vortex air duct and a guide air duct, the vortex air duct being located on the side of the air duct partition plate near the volute tongue and connected to the fan outlet, the guide air duct being located on the side of the air duct partition plate near the volute and connected to the fan outlet; and an oscillator disposed in the vortex air duct. This application provides an indoor air conditioner unit and an air conditioner that, through a dual-mixing air duct design, achieves a comfortable and natural air supply effect while increasing the air volume of the indoor air conditioner unit.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to an indoor air conditioning unit and an air conditioner. Background Technology

[0002] As people's living standards continue to improve, air conditioning has become a common way to regulate indoor temperature in daily life. When an air conditioner is running, it typically uses an air guide assembly located at the air outlet of the indoor unit to direct airflow to a designated location. Specifically, the air guide plate of the air guide assembly swings up and down to achieve vertical airflow, while the louvers of the air guide assembly swing left and right to achieve horizontal airflow.

[0003] However, air conditioner indoor units that use air guide components to change airflow direction produce a directional, bundled airflow. When this airflow hits a wall, it is reflected off the wall, still resulting in a large, steady-state temperature difference and a feeling of draft, affecting comfort. Furthermore, unidirectional airflow mixing efficiency is low, leading to high energy consumption due to prolonged operation of the indoor unit. Therefore, some air conditioner indoor units now employ a self-oscillating air duct design to achieve a comfortable and natural airflow effect.

[0004] However, self-oscillating air ducts have the problem of high air resistance, resulting in a smaller air volume delivered by the indoor unit of the air conditioner. Summary of the Invention

[0005] This application discloses an indoor air conditioning unit and an air conditioner. Through a dual-mixing air duct design, it achieves a comfortable and natural air supply effect while increasing the air volume of the indoor air conditioning unit.

[0006] To achieve the above objectives, this application discloses an indoor air conditioning unit, comprising:

[0007] A housing having an air outlet duct;

[0008] A duct component is provided inside the housing. The duct component forms a fan duct. The fan duct has a fan outlet, and the fan outlet is connected to the outlet duct.

[0009] The fan is located in the fan duct;

[0010] The air duct component includes:

[0011] Snail shell;

[0012] The volute tongue is spaced apart from the volute casing to form the fan duct;

[0013] The indoor unit of the air conditioner also includes:

[0014] A duct partition plate is provided on the outlet air duct. The duct partition plate is used to divide the outlet air duct into a vortex air duct and a guide air duct. The vortex air duct is located on the side of the duct partition plate near the volute tongue and is connected to the fan outlet. The guide air duct is located on the side of the duct partition plate near the volute and is connected to the fan outlet.

[0015] An oscillator is located in the vortex duct.

[0016] By installing a duct divider in the air outlet duct, the air outlet duct is divided into a vortex duct and a guide duct. Both the vortex duct and the guide duct are connected to the fan outlet. Thus, under the action of the fan, the heat-exchanging airflow generated inside the indoor unit of the air conditioner can be transported to the fan outlet through the fan duct, and then split into the vortex duct and the guide duct at the fan outlet. By installing an oscillator in the vortex duct, the airflow is made to self-excitedly oscillate, resulting in a multi-directional diffused airflow output from the indoor unit of the air conditioner, making the airflow gentler and achieving a comfortable and natural air delivery effect. Furthermore, the airflow within the vortex duct, after being oscillated by the oscillator, is blown out, forming a suction vortex at the vortex outlet of the vortex duct. Meanwhile, the airflow within the guide duct, under the influence of the wall effect, flows along the extension direction of the duct partition plate to the vortex outlet near the vortex duct. Thus, the airflow in the guide duct mixes with the airflow output from the vortex outlet of the vortex duct under the low pressure of the suction vortex. As the vortex moves along the outlet direction, large-scale vortex diffusion is generated, forming a dynamic vortex airflow. In addition, compared to the vortex duct, the airflow output through the guide duct experiences less wind resistance. The guide duct achieves pressure relief and increased airflow, compensating for the loss of airflow to the indoor unit caused by the high wind resistance of the vortex duct. In other words, through the dual-mixing duct design, the overall airflow resistance is reduced, resulting in a larger airflow to the indoor unit.

[0017] In some embodiments of this application, the duct partition is used to form a damper for the indoor unit of the air conditioner, and the duct partition can move relative to the air outlet duct to close or open the air outlet of the air outlet duct.

[0018] The air duct partition forms the damper of the indoor unit of the air conditioner. The air duct partition can flexibly close the air outlet of the air outlet relative to the air outlet duct. When the air outlet of the air outlet duct is opened, the air outlet duct can be divided into a vortex air duct and a guide air duct, realizing structural reuse and simplifying the structure of the indoor unit of the air conditioner.

[0019] In some embodiments of this application, the vortex air duct has a vortex air inlet, the vortex air inlet is connected to the fan outlet, the distance between the side of the vortex air inlet near the volute tongue and the center surface of the vortex air duct is a1, and the distance between the side of the vortex air inlet near the volute shell and the center surface is a2, where a1 < a2.

[0020] Because the airflow is delivered to the fan outlet of the fan duct by the fan, the airflow rate and velocity are larger near the volute tongue and smaller further away from the volute. Therefore, this embodiment compensates for the uneven distribution of airflow rate and velocity at the fan outlet near the volute and near the duct partition plate by ensuring that a1 < a2, that is, the distance a1 between the side of the vortex inlet near the volute tongue and the center plane of the vortex duct is smaller than the distance a2 between the side of the vortex inlet near the volute and the center plane. This maintains the airflow balance on both sides of the center plane of the vortex inlet of the vortex duct, resulting in better self-excited oscillation of the airflow in the vortex duct.

[0021] In some embodiments of this application, the oscillator includes:

[0022] The first turbulence baffle is disposed in the vortex duct;

[0023] The second turbulence baffle is disposed in the vortex duct and is symmetrical to and spaced apart from the first turbulence baffle relative to the center face of the vortex duct.

[0024] The first and second baffles are used to divide the vortex duct into a first return channel, a mixing chamber, and a second return channel. The first return channel is located on the side of the first baffle away from the duct partition. The mixing chamber is located between the first and second baffles. The second return channel is located on the side of the second baffle facing the duct partition. Both the first and second return channels are used to allow a portion of the airflow to return from the outlet of the mixing chamber to the inlet of the mixing chamber.

[0025] By symmetrically and spaced apart from each other with the first and second baffles facing each other at their center, a first return channel and a second return channel are formed on both sides of the mixing chamber. The first and second return channels allow part of the airflow to return from the outlet of the mixing chamber to the inlet of the mixing chamber. The flow rate, velocity, and direction of the airflow returning through the first and second return channels are relatively balanced, resulting in a better self-excited oscillation effect of the airflow in the mixing chamber.

[0026] In some embodiments of this application, the first turbulence baffle has a windward end and an air supply end, the windward end is disposed toward the air outlet of the fan, the distance between the windward end and the center surface is b, and the distance between the air supply end and the center surface is c, c≥1.5b, and / or, c≤2b.

[0027] The relationship between the distance *b* between the windward end and the center plane and the distance *c* between the air supply end and the center plane is *c ≥ 1.5b*, indicating a larger difference in width between the inlet and outlet of the mixing chamber. This results in less air resistance to the airflow within the mixing chamber and a larger air volume supplied by the indoor air conditioning unit. Conversely, the relationship between the distance *b* between the windward end and the center plane and the distance *c* between the air supply end and the center plane is *c ≤ 2b*, indicating a smaller outlet width for the mixing chamber and a larger inlet width for the first return channel. This allows as much airflow as possible to return from the outlet of the mixing chamber to the inlet via the first return channel, resulting in better self-excited oscillation of the airflow in the vortex duct.

[0028] In some embodiments of this application, the indoor unit of the air conditioner further includes a connecting rod, the vortex duct has a vortex air inlet, the vortex air inlet is connected to the air outlet of the fan, and the distance between the side of the vortex air inlet near the volute tongue and the center surface is a1.

[0029] The windward end of the first baffle plate is positioned facing the air outlet of the fan, and the distance between the windward end and the center surface is b, where b > a1, and / or b ≤ 1.2a1.

[0030] When the distance b between the windward end and the center plane is b > a1, the greater distance provides sufficient oscillation space for the airflow entering the vortex inlet of the vortex duct, resulting in better self-excited oscillation of the airflow in the mixing chamber. Conversely, when the distance b between the windward end and the center plane is b ≤ 1.2a1, the closer distance reduces the distance between the outlet of the first return channel and the second baffle. The return airflow from the outlet of the first return channel provides sufficient impact to deflect the airflow in the mixing chamber towards the second baffle, causing the airflow in the mixing chamber to flow as close as possible to the side surface of the second baffle facing the mixing chamber, resulting in better self-excited oscillation of the airflow in the mixing chamber.

[0031] In some embodiments of this application, the width of the inlet of the first return channel is e, and the width of the outlet of the first return channel is f, where f ≤ e.

[0032] The relationship between the width e of the inlet of the first recirculation channel and the width f of the outlet of the first recirculation channel is f≤e. After the airflow enters the first recirculation channel through the inlet, the flow velocity when it flows out of the outlet of the first recirculation channel is relatively large, which can provide sufficient impact to deflect the airflow in the mixing chamber toward the second turbulence baffle. The airflow in the mixing chamber flows as close as possible to the side surface of the second turbulence baffle facing the mixing chamber, and the airflow in the mixing chamber generates a better self-excited oscillation effect.

[0033] In some embodiments of this application, the vortex duct has a vortex air inlet, the vortex air inlet is connected to the fan outlet, the distance between the side of the vortex air inlet near the volute tongue and the center surface is a1, and the width of the outlet of the first return channel is f, where f > a1.

[0034] The width f of the outlet of the first return channel can be f > a1. The flow rate of the airflow exiting the outlet of the first return channel is relatively large, and the difference between the flow rate and the flow rate of the airflow entering the vortex inlet of the vortex duct from the fan outlet is small. It can provide sufficient impact to make the airflow entering from the vortex inlet deflect towards the second turbulence baffle when entering the mixing chamber. The airflow in the mixing chamber flows as close as possible to the side surface of the second turbulence baffle facing the mixing chamber, and the airflow in the mixing chamber generates a better self-excited oscillation effect.

[0035] In some embodiments of this application, the wall of the vortex duct is provided with a flow-dividing structure, the flow-dividing structure including:

[0036] The first curved surface extends from the inlet of the first return channel to the vortex outlet of the vortex air duct.

[0037] A second curved surface is connected to the first curved surface, and the second curved surface extends from the entrance of the first return channel into the first return channel.

[0038] The first curved surface extends from the inlet of the first recirculation channel to the vortex outlet of the vortex duct. Using this first curved surface for flow diversion and guidance, when the airflow exits the mixing chamber, some of the airflow can smoothly flow to the vortex outlet of the vortex duct and be output to the outside under the action of the first curved surface, with minimal air resistance. Similarly, the second curved surface extends from the inlet of the first recirculation channel into the first recirculation channel. Using this second curved surface for flow diversion and guidance, when the airflow exits the mixing chamber, some of the airflow can smoothly flow to the first recirculation channel and from the outlet of the first recirculation channel to the inlet of the mixing chamber, with minimal air resistance.

[0039] In some embodiments of this application, the vortex duct has a vortex inlet, which is connected to the fan outlet. The distance between the side of the vortex inlet near the volute tongue and the center surface of the vortex duct is a1, and the distance between the side of the vortex inlet near the volute shell and the center surface is a2. The distance from the end of the volute tongue at the fan outlet to the volute shell is x. The guide duct has a guide inlet connected to the fan outlet, and the width of the guide inlet is g, where g + a1 + a2 > x.

[0040] With g+a1+a2>x, the overall width of the guide air inlet of the guide air duct and the vortex air inlet of the vortex air duct is relatively large, which allows the guide air duct and the vortex air duct to jointly receive the airflow from the fan outlet, avoiding airflow loss and resulting in a larger air volume output of the indoor air conditioning unit.

[0041] In some embodiments of this application, the surface of the air duct partition plate facing the air duct is configured as a smooth curved surface.

[0042] By constructing the side surface of the air duct partition plate facing the air duct as a smooth curved surface, it is possible to ensure that the airflow in the air duct generates a wall adhesion effect and flows towards the vortex outlet of the vortex air duct. The airflow can flow as close as possible to the side surface of the air duct partition plate facing the air duct, resulting in a gentler airflow and preventing abnormal noises from occurring when the airflow flows in the air duct.

[0043] On the other hand, this application discloses an air conditioner that includes the indoor unit described in the above-mentioned aspect.

[0044] The air conditioner disclosed in this application has all the beneficial effects of the air conditioner indoor unit described in the above-mentioned aspect.

[0045] Compared with the prior art, the embodiments of this application have at least the following beneficial effects:

[0046] In this embodiment, a duct divider is installed in the air outlet duct to divide it into a vortex duct and a guide duct. Both the vortex duct and the guide duct are connected to the fan outlet. Thus, under the action of the fan, the heat exchange airflow generated inside the indoor unit of the air conditioner can be transported to the fan outlet via the fan duct, and then split into the vortex duct and the guide duct at the fan outlet. By installing an oscillator in the vortex duct, the airflow is made to self-excite oscillate, resulting in a multi-directional diffused airflow output from the indoor unit of the air conditioner, making the airflow gentler and achieving a comfortable and natural air delivery effect. Furthermore, the airflow within the vortex duct, after being oscillated by the oscillator, is blown out, forming a suction vortex at the vortex outlet of the vortex duct. Meanwhile, the airflow within the guide duct, under the influence of the wall effect, flows along the extension direction of the duct partition plate to the vortex outlet near the vortex duct. Thus, the airflow in the guide duct mixes with the airflow output from the vortex outlet of the vortex duct under the low pressure of the suction vortex. As the vortex moves along the outlet direction, large-scale vortex diffusion is generated, forming a dynamic vortex airflow. In addition, compared to the vortex duct, the airflow output through the guide duct experiences less wind resistance. The guide duct achieves pressure relief and increased airflow, compensating for the loss of airflow to the indoor unit caused by the high wind resistance of the vortex duct. In other words, through the dual-mixing duct design, the overall airflow resistance is reduced, resulting in a larger airflow to the indoor unit. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0048] Figure 1 This is a structural schematic diagram of an indoor air conditioning unit (air outlet of the air outlet of the air outlet duct is closed by an air duct partition) provided in an embodiment of this application;

[0049] Figure 2 This is an exploded view of an indoor unit of an air conditioner provided in an embodiment of this application;

[0050] Figure 3 This is a structural schematic diagram from another perspective of an air conditioning indoor unit (air outlet of the air outlet of the air outlet duct is closed by the air duct partition) provided in the embodiment of this application;

[0051] Figure 4 yes Figure 3 A schematic diagram of the AA cross-sectional structure of the indoor unit of the air conditioner in the diagram;

[0052] Figure 5This is a structural schematic diagram from another perspective of an air conditioning indoor unit (air outlet of the air duct with the air duct partition opened) provided in an embodiment of this application;

[0053] Figure 6 yes Figure 5 A schematic diagram of the BB cross-sectional structure of the indoor unit of the air conditioner in the diagram;

[0054] Figure 7 This is a schematic diagram of the structure of an indoor air conditioning unit (air outlet of the air duct with the air duct partition plate opening) provided in an embodiment of this application;

[0055] Figure 8 This is a schematic diagram of the airflow direction of an indoor air conditioning unit provided in an embodiment of this application;

[0056] Figure 9 yes Figure 4 Enlarged structural diagram at point I;

[0057] Figure 10 yes Figure 6 Enlarged structural diagram at point II;

[0058] Figure 11 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application.

[0059] Explanation of main figure symbols

[0060] 100. Air conditioner indoor unit;

[0061] 10. Housing; 10a. Air outlet duct;

[0062] 20. Air duct components; 20a. Fan air duct; 20b. Fan air outlet; 21. Volute; 22. Volute tongue;

[0063] 201, Vortex air duct; 201a, Vortex air inlet; 201b, Vortex air outlet; 201c, First curved surface; 201d, Second curved surface; 2011, First recirculation channel; 2012, Mixing chamber; 2013, Second recirculation channel;

[0064] 202. Airflow guiding duct; 202a. Airflow guiding inlet;

[0065] 30. Fan;

[0066] 40. Air duct partition plate;

[0067] 50. Oscillator; 51. First baffle plate; 51a. Windward end; 51b. Air supply end; 52. Second baffle plate;

[0068] 200. Air conditioner;

[0069] 300. Outdoor unit;

[0070] p, center plane. Detailed Implementation

[0071] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0072] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0073] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0074] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0075] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0076] Before explaining the technical solution of this application, the inventive concept of this application will be explained first.

[0077] Figure 1 This is a structural schematic diagram of an air conditioner indoor unit 100 provided in an embodiment of this application. Figure 2This is an exploded structural diagram of an indoor air conditioning unit 100 provided in an embodiment of this application.

[0078] The air delivery method of the indoor unit 100 of an air conditioner directly affects the distribution of indoor airflow and user comfort. In related technologies, the air delivery method of the indoor unit 100 is a unidirectional, beam-like airflow, which is essentially a mechanical, hard wind, easily causing discomfort to users and potentially leading to air conditioning sickness. Therefore, related technologies control the air delivery direction of the indoor unit 100 to avoid direct airflow onto the human body. For example, the air outlet direction of the indoor unit 100 can be set to horizontal, allowing the airflow to naturally descend and create a gentle, refreshing breeze; or the air outlet direction can be set vertically downward, allowing the airflow to flow over the floor and create a carpet-like breeze. Furthermore, the air delivery speed is controlled to reduce the feeling of a draft. For example, perforated plates can be used to apply air resistance to the airflow, thereby reducing the airflow speed. However, the above control methods still have problems: First, the beam-like airflow still generates a significant temperature difference after being reflected off the wall, affecting user comfort. Second, the unidirectional airflow mixing efficiency is low, thus reducing heat exchange and increasing energy consumption due to prolonged operation of the indoor unit 100.

[0079] To address the aforementioned technical issues, an oscillator 50 has been incorporated into the indoor unit 100 of an air conditioner. When the airflow output from the fan 30 enters the oscillator 50, it undergoes self-excited oscillation under the influence of the oscillator 50. This results in a multi-directional, diffused airflow output from the indoor unit 100, producing a gentler and more comfortable airflow. Furthermore, because the airflow is diffused, the local mixing efficiency is higher, improving the heat exchange effect in the local space and reducing the operating time of the indoor unit 100, thereby saving power consumption.

[0080] However, further research revealed that because the oscillator 50 is directly connected to the fan duct 20a, it has a large air resistance, resulting in a small air volume delivered by the indoor unit 100 of the air conditioner.

[0081] In summary, the air conditioner indoor unit 100 in the relevant technology has the problem of large air resistance in the self-oscillating air duct, resulting in a small air volume delivered by the air conditioner indoor unit 100.

[0082] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0083] In some embodiments, the air conditioner indoor unit 100 may be, for example, a wall-mounted indoor unit, that is, the air conditioner indoor unit 100 may be mounted on a wall. Alternatively, the air conditioner indoor unit 100 may also be, for example, a floor-standing indoor unit, that is, the air conditioner indoor unit 100 may be placed on the ground, a table, or the like.

[0084] This application takes the indoor unit 100 of the air conditioner as an example of a wall-mounted indoor unit.

[0085] In some embodiments, such as Figure 1 and Figure 2 As shown, the indoor unit 100 of the air conditioner includes a housing 10.

[0086] The shell 10 can be cylindrical, cuboid, or cubic, etc., and this embodiment does not limit the shape. The shell 10 can be made of plastic or metal, etc., and this embodiment does not limit the material of the shell 10.

[0087] The housing 10 can be the housing of the indoor unit 100 of the air conditioner, which includes an outer shell and a bottom shell. The outer shell and the bottom shell enclose an internal space for installing components such as the air duct 20 and the heat exchanger.

[0088] In some embodiments, the housing 10 has an air outlet duct 10a.

[0089] Among them, the air outlet duct 10a is used to output the heat exchange airflow generated inside the air conditioner indoor unit 100 to the outside.

[0090] In some embodiments, such as Figure 3 and Figure 4 As shown, the indoor unit 100 of the air conditioner includes a duct component 20, which is disposed within the housing 10. The duct component 20 forms a fan duct 20a, which has a fan outlet 20b connected to the outlet duct 10a.

[0091] The fan duct 20a is formed by the duct component 20. The fan outlet 20b of the fan duct 20a is connected to the outlet duct 10a. The heat exchange airflow generated inside the air conditioning indoor unit 100 can be output to the outside in sequence through the fan duct 20a and the outlet duct 10a.

[0092] In some embodiments, the indoor unit 100 of the air conditioner includes a fan 30, which is disposed in the fan duct 20a.

[0093] By installing a fan 30 in the fan duct 20a, the heat exchange airflow generated inside the air conditioning indoor unit 100 can be output to the outside through the fan duct 20a and the air outlet duct 10a in sequence by utilizing the force provided by the fan 30.

[0094] In some embodiments, the duct component 20 includes a volute 21 and a volute tongue 22, the volute tongue 22 and the volute 21 being spaced apart to form a fan duct 20a.

[0095] In some embodiments, combined with Figure 5 and Figure 6 The indoor unit 100 of the air conditioner also includes a duct partition 40, which is disposed in the air outlet duct 10a. The duct partition 40 is used to divide the air outlet duct 10a into a vortex duct 201 and a guide duct 202. The vortex duct 201 is located on the side of the duct partition 40 near the volute tongue 22 and is connected to the fan outlet 20b. The guide duct 202 is located on the side of the duct partition 40 near the volute 21 and is connected to the fan outlet 20b.

[0096] By installing a duct partition 40 in the air outlet duct 10a, the air outlet duct 10a is divided into a vortex duct 201 and a guide duct 202. Both the vortex duct 201 and the guide duct 202 are connected to the fan outlet 20b. Thus, under the action of the fan 30, the heat exchange airflow generated inside the indoor unit 100 can be transported through the fan duct 20a to the fan outlet 20b, and then split at the fan outlet 20b into the vortex duct 201 and the guide duct 202.

[0097] In some embodiments, the duct partition 40 is used to form a damper for the indoor unit 100 of the air conditioner, and the duct partition 40 can be movable relative to the air outlet duct 10a to close or open the air outlet of the air outlet duct 10a.

[0098] Among them, such as Figure 1 and Figure 4 As shown, Figure 1 and Figure 4 The diagram shows the air duct partition 40 sealing the air outlet of the air duct 10a. For example... Figure 6 and Figure 7 As shown, Figure 6 and Figure 7 The air outlet of the air duct 10a is opened by the air duct partition plate 40.

[0099] The air duct partition 40 forms a damper for the indoor unit 100 of the air conditioner. The air duct partition 40 can movably close the air outlet of the air outlet 10a relative to the air outlet 10a. When the air outlet of the air outlet 10a is opened, the air duct partition 40 can divide the air outlet 10a into a vortex air duct 201 and a guide air duct 202, thereby achieving structural reuse and simplifying the structure of the indoor unit 100 of the air conditioner.

[0100] In some embodiments, such as Figure 2 and Figure 6As shown, the indoor unit 100 of the air conditioner also includes an oscillator 50, which is located in the vortex duct 201.

[0101] By installing an oscillator 50 in the vortex duct 201, the airflow is made to generate self-excited oscillation, so that the air output by the indoor unit 100 of the air conditioner is a multi-directional diffused airflow, resulting in a softer airflow and achieving a comfortable and natural air delivery effect.

[0102] Furthermore, the airflow in the vortex duct 201 is blown out after being acted upon by the oscillator 50, forming a suction vortex at the vortex outlet 201b of the vortex duct 201. Under the effect of the wall adhesion, the airflow in the guide duct 202 can flow along the extension direction of the duct partition plate 40 to the vortex outlet 201b near the vortex duct 201. Thus, the airflow in the guide duct 202 mixes with the airflow output from the vortex outlet 201b of the vortex duct 201 under the low pressure of the suction vortex. As the vortex moves along the outlet direction, a large-scale vortex diffusion is generated, forming a dynamic vortex airflow. In addition, compared with the vortex duct 201, the airflow output through the guide duct 202 experiences less wind resistance. The guide duct 202 is used to achieve the function of depressurization and air volume increase, which makes up for the loss of air volume of the air conditioner indoor unit 100 caused by the large wind resistance of the vortex duct 201. That is, through the dual-mixing duct design, the wind resistance of the overall airflow can be reduced, and the air volume of the air conditioner indoor unit 100 is larger.

[0103] In some embodiments, such as Figure 4 and Figure 6 As shown, the oscillator 50 includes a first turbulence baffle 51, which is disposed in the vortex duct. The oscillator 50 also includes a second turbulence baffle 52, which is disposed in the vortex duct 201 and is symmetrical to and spaced apart from the first turbulence baffle on the center plane p of the vortex duct 201.

[0104] With the first turbulence baffle 51 and the second turbulence baffle 52 symmetrically and spaced apart from each other on the center plane p, the flow rate, velocity, and direction of the airflow on both sides of the center plane p of the vortex duct 201 are relatively balanced, and the airflow generates a better self-excited oscillation effect.

[0105] In some embodiments, the first baffle 51 and the second baffle 52 are used to divide the vortex duct 201 into a first return channel 2011, a mixing chamber 2012, and a second return channel 2013. The first return channel 2011 is located on the side of the first baffle 51 away from the duct partition plate 40. The mixing chamber 2012 is located between the first baffle 51 and the second baffle 52. The second return channel 2013 is located on the side of the second baffle 52 facing the duct partition plate 40. Both the first return channel 2011 and the second return channel 2013 are used to allow part of the airflow to return from the outlet of the mixing chamber 2012 to the inlet of the mixing chamber 2012.

[0106] By forming a first return channel 2011 and a second return channel 2013 on both sides of the mixing chamber 2012, some airflow is made to return from the outlet of the mixing chamber 2012 to the inlet of the mixing chamber 2012 using the first return channel 2011 and the second return channel 2013. The flow rate, velocity and direction of the airflow returning through the first return channel 2011 and the second return channel 2013 are relatively balanced, and the airflow in the mixing chamber 2012 generates a better self-excited oscillation effect.

[0107] In some embodiments, the vortex duct 201 has a vortex inlet 201a and a vortex outlet 201b, the vortex inlet 201a being connected to the fan outlet 20b, and the vortex outlet 201b being used to output airflow from the vortex duct 201 to the outside.

[0108] Among them, such as Figure 8 As shown, Figure 8 This is a schematic diagram of the airflow direction of an indoor air conditioning unit 100 provided in this embodiment. Figure 8 The arrows in the diagram indicate the direction of airflow.

[0109] In some embodiments, such as Figure 9 and Figure 10 As shown, the distance between the side of the vortex air inlet 201a near the volute tongue 22 and the center surface p of the vortex air duct 201 is a1, and the distance between the side of the vortex air inlet 201a near the volute shell 21 and the center surface p is a2, where a1 < a2.

[0110] As the airflow is delivered to the fan outlet 20b of the fan duct 20a by the fan 30, the airflow flow rate and velocity are larger near the volute tongue 22 and smaller away from the volute shell 21. Therefore, in this embodiment, by making a1 < a2, that is, the distance a1 between the side of the vortex inlet 201a near the volute tongue 22 and the center plane p of the vortex duct 201 is smaller than the distance a2 between the side of the vortex inlet 201a near the volute shell 21 and the center plane p, the uneven distribution of airflow flow rate and velocity at the fan outlet 20b near the volute shell 21 and near the duct partition plate 40 is compensated, and the airflow at the vortex inlet 201a of the vortex duct 201 on both sides of the center plane p is maintained in a balanced manner, resulting in better self-excited oscillation of the airflow in the vortex duct 201.

[0111] In some embodiments, the first turbulence baffle 51 has a windward end 51a and an air supply end 51b. The windward end 51a is positioned toward the fan outlet 20b. The distance between the windward end 51a and the center surface p is b, and the distance between the air supply end 51b and the center surface p is c, where c ≥ 1.5b.

[0112] If the distance c between the air supply end 51b and the center plane p is less than 1.5b, the width difference between the inlet and outlet of the mixing chamber 2012 is small, the airflow in the mixing chamber 2012 experiences greater wind resistance, and the air supply volume of the indoor air conditioning unit 100 is smaller. Therefore, the relationship between the distance b between the air supply end 51a and the center plane p and the distance c between the air supply end 51b and the center plane p can be c ≥ 1.5b, the width difference between the inlet and outlet of the mixing chamber 2012 is larger, the airflow in the mixing chamber 2012 experiences less wind resistance, and the air supply volume of the indoor air conditioning unit 100 is larger.

[0113] In some embodiments, the first turbulence baffle 51 has a windward end 51a and an air supply end 51b. The windward end 51a is positioned facing the fan outlet 20b, the distance between the windward end 51a and the center surface p is b, and the distance between the air supply end 51b and the center surface p is c, where c ≤ 2b.

[0114] If the distance c between the air supply end 51b and the center plane p is greater than 2b, the width of the outlet of the mixing chamber 2012 will be larger, while the width of the inlet of the first return channel 2011, which is negatively correlated with the width of the outlet of the mixing chamber 2012, will be smaller. This will affect the airflow from the outlet of the mixing chamber 2012 back to the inlet of the mixing chamber 2012 via the first return channel 2011, resulting in a poor self-excited oscillation effect of the airflow in the vortex duct 201. Therefore, the relationship between the distance b between the air supply end 51a and the center plane p and the distance c between the air supply end 51b and the center plane p can be c≤2b. This results in a smaller width at the outlet of the mixing chamber 2012 and a larger width at the inlet of the first return channel 2011, allowing as much airflow as possible to return from the outlet of the mixing chamber 2012 back to the inlet of the mixing chamber 2012 via the first return channel 2011, thus improving the self-excited oscillation effect of the airflow in the vortex duct 201.

[0115] In some embodiments, 1.5b≤c≤2b.

[0116] The distance c between the air supply end 51b and the center plane p can be 1.5b, 1.6b, 1.7b, 1.8b, 1.9b, 2b, etc., and this embodiment does not make a specific limitation on it.

[0117] In some embodiments, the windward end 51a of the first turbulence baffle 51 is positioned facing the fan outlet 20b, and the distance between the windward end 51a and the center surface p is b, where b > a1.

[0118] If the distance b between the windward end 51a and the center surface p is less than a1, when the airflow enters the vortex inlet 201a of the vortex duct 201 from the fan outlet 20b, the airflow will oscillate up and down due to the action of the oscillator 50 of the vortex duct. Since the distance between the windward end 51a and the center surface p is relatively short, it cannot provide sufficient oscillation space, affecting the self-excited oscillation effect of the airflow in the mixing chamber 2012. Therefore, the distance b between the windward end 51a and the center surface p can be greater than a1. A greater distance provides sufficient oscillation space for the airflow entering the vortex inlet 201a of the vortex duct 201, resulting in better self-excited oscillation of the airflow in the mixing chamber 2012.

[0119] In some embodiments, the windward end 51a of the first turbulence baffle 51 is positioned facing the fan outlet 20b, and the distance between the windward end 51a and the center surface p is b, where b≤1.2a1.

[0120] If the distance b between the windward end 51a and the center surface p is greater than 1.2a1, then the distance between the windward end 51a and the center surface p is relatively large, and the distance from the outlet of the first return channel 2011 to the second turbulence baffle 52 is relatively large. The airflow returning from the outlet of the first return channel 2011 is unlikely to provide sufficient impact to cause the airflow in the mixing chamber 2012 to deviate towards the second turbulence baffle 52. The airflow in the mixing chamber 2012 is unlikely to flow close to the second turbulence baffle 52 towards the side surface of the mixing chamber 2012, affecting the self-excited oscillation effect of the airflow in the mixing chamber 2012. Therefore, the distance b between the windward end 51a and the center surface p can be b≤1.2a1. The distance between the windward end 51a and the center surface p is relatively close, and the distance from the outlet of the first return channel 2011 to the second turbulence baffle 52 is relatively small. The airflow returning from the outlet of the first return channel 2011 can provide sufficient impact to make the airflow in the mixing chamber 2012 deflect towards the second turbulence baffle 52. The airflow in the mixing chamber 2012 flows as close as possible to the second turbulence baffle 52 towards one side surface of the mixing chamber 2012, and the airflow in the mixing chamber 2012 generates a better self-excited oscillation effect.

[0121] In some embodiments, a1 < b ≤ 1.2a1.

[0122] The distance b between the windward end 51a and the center plane p can be 1.01a1, 1.02a1, 1.04a1, 1.06a1, 1.08a1, 1.1a1, 1.12a1, 1.14a1, 1.16a1, 1.18a1, 1.2a1, etc., and this embodiment does not make a specific limitation on it.

[0123] In some embodiments, the width of the inlet of the first return channel 2011 is e, and the width of the outlet of the first return channel 2011 is f, where f ≤ e.

[0124] If the width f of the outlet of the first return channel 2011 is greater than the width e of the inlet of the first return channel 2011, the airflow velocity when it flows out of the outlet of the first return channel 2011 after entering the first return channel 2011 through the inlet is relatively small, which is difficult to provide sufficient impact to make the airflow in the mixing chamber 2012 deflect towards the second turbulence baffle 52. The airflow in the mixing chamber 2012 is difficult to flow close to the side surface of the second turbulence baffle 52 facing the mixing chamber 2012, which affects the self-excited oscillation effect of the airflow in the mixing chamber 2012. Therefore, the relationship between the width e of the inlet of the first return channel 2011 and the width f of the outlet of the first return channel 2011 can be f≤e. After the airflow enters the first return channel 2011 through the inlet, the flow velocity when it flows out of the outlet of the first return channel 2011 is relatively large, which can provide sufficient impact to make the airflow in the mixing chamber 2012 deflect towards the second turbulence baffle 52. The airflow in the mixing chamber 2012 flows as close as possible to the second turbulence baffle 52 towards one side surface of the mixing chamber 2012, and the airflow in the mixing chamber 2012 generates a better self-excited oscillation effect.

[0125] In some embodiments, the width of the outlet of the first return channel 2011 is f, where f > a1.

[0126] If the width f of the outlet of the first return channel 2011 is f≤a1, then the width f of the outlet of the first return channel 2011 is small, and the flow rate of the airflow flowing out of the outlet of the first return channel 2011 is small. Compared with the flow rate of the airflow flowing from the fan outlet 20b into the vortex inlet 201a of the vortex duct 201, the difference is large, making it difficult to provide sufficient impact so that the airflow entering from the vortex inlet deflects towards the second turbulence baffle 52 when entering the mixing chamber 2012. The airflow in the mixing chamber 2012 is difficult to flow close to the second turbulence baffle 52 towards the side surface of the mixing chamber 2012, affecting the self-excited oscillation effect of the airflow in the mixing chamber 2012. Therefore, the width f of the outlet of the first return channel 2011 can be f > a1. The flow rate of the airflow flowing out of the outlet of the first return channel 2011 is relatively large, and the flow rate difference with the airflow flowing from the fan outlet 20b into the vortex inlet 201a of the vortex duct 201 is relatively small. This can provide sufficient impact so that the airflow entering from the vortex inlet deflects towards the second turbulence baffle 52 when it enters the mixing chamber 2012. The airflow in the mixing chamber 2012 flows as close as possible to the second turbulence baffle 52 towards the side surface of the mixing chamber 2012, and the airflow in the mixing chamber 2012 generates a better self-excited oscillation effect.

[0127] In some embodiments, such as Figure 6As shown, the wall of the vortex duct 201 is provided with a flow-dividing structure, which includes a first curved surface 201c. The first curved surface 201c extends from the inlet of the first return channel 2011 to the vortex outlet 201b of the vortex duct 201.

[0128] The first curved surface 201c extends from the inlet of the first return channel 2011 to the vortex outlet 201b of the vortex duct 201. The first curved surface 201c is used for diversion and guidance, so that when the airflow flows out to the outlet of the mixing chamber 2012, part of the airflow can flow smoothly to the vortex outlet 201b of the vortex duct and be output to the outside under the action of the first curved surface 201c, and the airflow is less affected by the wind resistance.

[0129] In some embodiments, the diversion structure includes a second curved surface 201d, which is connected to the first curved surface 201c. The second curved surface 201d extends from the inlet of the first return channel 2011 into the first return channel 2011.

[0130] The second curved surface 201d extends from the inlet of the first return channel 2011 into the first return channel 2011. The second curved surface 201d is used for diversion and guidance, so that when the airflow flows out to the outlet of the mixing chamber 2012, part of the airflow can flow smoothly to the first return channel and from the outlet of the first return channel 2011 to the inlet of the mixing chamber 2012 under the action of the second curved surface 201d, and the airflow is less affected by the wind resistance.

[0131] In some embodiments, such as Figure 9 and Figure 10 As shown, the distance from the end of the volute tongue 22 at the air outlet 20b of the fan to the volute 21 is x. The guide air duct 202 has a guide air inlet 202a that is connected to the air outlet 20b of the fan. The width of the guide air inlet 202a is g, where g+a1+a2>x.

[0132] Because the vortex duct has high air resistance, if g+a1+a2≤x, the overall width of the guide air inlet 202a of the guide air duct 202 and the vortex air inlet 201a of the vortex duct is small. This makes it difficult for the guide air duct 202 and the vortex duct 201 to jointly receive the airflow from the fan outlet 20b, resulting in airflow loss and affecting the air volume of the indoor unit 100. Therefore, by ensuring g+a1+a2>x, the overall width of the guide air inlet 202a of the guide air duct 202 and the vortex air inlet 201a of the vortex duct is larger, allowing the guide air duct 202 and the vortex duct 201 to jointly receive the airflow from the fan outlet 20b, avoiding airflow loss and resulting in a larger air volume of the indoor unit 100.

[0133] In some embodiments, the surface of the duct partition 40 facing the airflow duct 202 is configured as a smooth curved surface.

[0134] By constructing the side surface of the air duct partition plate 40 facing the guide air duct 202 as a smooth curved surface, it is possible to ensure that the airflow in the guide air duct 202 generates a wall adhesion effect and flows towards the vortex outlet 201b of the vortex air duct 201. The airflow can flow as close as possible to the side surface of the air duct partition plate 40 facing the guide air duct 202, the air delivery of the guide air duct 202 is relatively gentle, and abnormal noise can be avoided when the airflow in the guide air duct 202 flows.

[0135] The smooth surface may include multiple continuous surfaces, circular arc surfaces, or Bézier surfaces, etc., and this embodiment does not specifically limit it.

[0136] like Figure 11 This application also provides an air conditioner 200, including an outdoor unit 300 and an indoor unit 100 of any of the above embodiments. The outdoor unit 300 can be connected to the indoor unit 100 via pipes, cables, etc.

[0137] The above provides a detailed description of an indoor air conditioning unit and air conditioner disclosed in this application. This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand an indoor air conditioning unit and air conditioner and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing having an air outlet duct; A duct component is provided inside the housing. The duct component forms a fan duct. The fan duct has a fan outlet, and the fan outlet is connected to the outlet duct. The fan is located in the fan duct; The air duct component includes: Snail shell; The volute tongue is spaced apart from the volute casing to form the fan duct; The indoor unit of the air conditioner also includes: A duct partition plate is provided on the outlet air duct. The duct partition plate is used to divide the outlet air duct into a vortex air duct and a guide air duct. The vortex air duct is located on the side of the duct partition plate near the volute tongue and is connected to the fan outlet. The guide air duct is located on the side of the duct partition plate near the volute and is connected to the fan outlet. An oscillator is located in the vortex duct.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The duct partition is used to form a damper for the indoor unit of the air conditioner. The duct partition can move relative to the air outlet duct to close or open the air outlet of the air outlet duct.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The vortex air duct has a vortex air inlet, which is connected to the air outlet of the fan. The distance between the side of the vortex air inlet near the volute tongue and the center surface of the vortex air duct is a1, and the distance between the side of the vortex air inlet near the volute shell and the center surface is a2, where a1 < a2.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The oscillator includes: The first turbulence baffle is disposed in the vortex duct; The second turbulence baffle is disposed in the vortex duct and is symmetrical to and spaced apart from the first turbulence baffle relative to the center face of the vortex duct. The first and second baffles are used to divide the vortex duct into a first return channel, a mixing chamber, and a second return channel. The first return channel is located on the side of the first baffle away from the duct partition. The mixing chamber is located between the first and second baffles. The second return channel is located on the side of the second baffle facing the duct partition. Both the first and second return channels are used to allow a portion of the airflow to return from the outlet of the mixing chamber to the inlet of the mixing chamber.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The first baffle plate has a windward end and an air supply end. The windward end is positioned facing the air outlet of the fan. The distance between the windward end and the center surface is b, and the distance between the air supply end and the center surface is c, where c ≥ 1.5b and / or c ≤ 2b.

6. The indoor unit of the air conditioner according to claim 4, characterized in that, The vortex air duct has a vortex air inlet, which is connected to the air outlet of the fan. The distance between the side of the vortex air inlet near the volute tongue and the center surface is a1. The windward end of the first baffle plate is positioned facing the air outlet of the fan, and the distance between the windward end and the center surface is b, where b > a1, and / or b ≤ 1.2a1.

7. The indoor unit of the air conditioner according to claim 4, characterized in that, The width of the inlet of the first return channel is e, and the width of the outlet of the first return channel is f, where f ≤ e.

8. The indoor unit of the air conditioner according to claim 4, characterized in that, The vortex air duct has a vortex air inlet, which is connected to the fan outlet. The distance between the side of the vortex air inlet near the volute tongue and the center surface is a1. The width of the outlet of the first return channel is f, where f > a1.

9. The indoor unit of the air conditioner according to claim 4, characterized in that, The wall of the vortex duct is provided with a flow-dividing structure, the flow-dividing structure including: The first curved surface extends from the inlet of the first return channel to the vortex outlet of the vortex air duct. A second curved surface is connected to the first curved surface, and the second curved surface extends from the entrance of the first return channel into the first return channel.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, The vortex duct has a vortex air inlet connected to the fan outlet. The distance between the side of the vortex air inlet near the volute tongue and the center plane of the vortex duct is a1. The distance between the side of the vortex air inlet near the volute shell and the center plane is a2. The distance from the end of the volute tongue at the fan outlet to the volute shell is x. The guide duct has a guide air inlet connected to the fan outlet. The width of the guide air inlet is g, where g + a1 + a2 > x.

11. The indoor unit of the air conditioner according to claim 1, characterized in that, The surface of the air duct partition plate facing the air duct is configured as a smooth curved surface.

12. An air conditioner, characterized in that, Including the air conditioning indoor unit as described in any one of claims 1-11.

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