Air conditioning apparatus and its vortex ring generating device

Abstract

The application relates to the technical field of air conditioning equipment, and discloses an air conditioning equipment and a vortex ring generating device thereof. The vortex ring generating device comprises a shell defining an airflow channel; a movable element is arranged in the airflow channel and moves unidirectionally relative to the airflow channel, and is used for opening or closing the airflow channel to realize vortex ring air supply. The vortex ring air supply can realize low-speed and long-distance air supply. While realizing long-distance air supply, the vortex ring air supply does not cause human body discomfort due to excessively large air outlet speed, and does not need to increase air supply volume, so that airflow can be delivered to a target area on the premise of increasing energy consumption of the air conditioning equipment and meeting the air supply comfort requirement.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, for example to an air conditioning device and its vortex ring generator. Background Technology

[0002] Currently, when the supply air temperature of air conditioning equipment, such as air conditioners, is higher or lower than the indoor temperature, the supply airflow will be deflected upward or downward in a wide range due to the buoyancy effect caused by the temperature difference. This will disrupt the expected airflow organization and make it impossible to effectively deliver fresh air to the target area. For example, when an air conditioner delivers hot air, the supply hot airflow is deflected upward due to the buoyancy caused by the indoor temperature difference and cannot be delivered to the target area.

[0003] To solve the above problems, the following two solutions are often adopted: 1) Increase the air supply volume to mix the indoor air as much as possible and create an indoor environment with approximately uniform parameters; 2) Increase the air supply speed and use a high initial velocity jet to minimize the impact of buoyancy on the air supply airflow and deliver fresh air to the target area before the cold / hot air supply airflow deviates significantly.

[0004] The two solutions mentioned above have the following drawbacks: For solution 1), increasing the air volume will significantly increase energy consumption when the indoor occupancy rate is low; for solution 2), increasing the air supply speed will result in the air still having a large speed when it reaches the target area, resulting in a strong blowing sensation near the target location, which makes it difficult to meet the user's needs for air supply comfort. Summary of the Invention

[0005] 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.

[0006] This disclosure provides an air conditioning device and its vortex generator to solve the problem that the airflow cannot be delivered to the target area due to the deviation caused by temperature difference.

[0007] The first aspect of this application provides a vortex ring generator, comprising: a housing defining an airflow channel; and a movable member disposed within the airflow channel and capable of unidirectional movement relative to the airflow channel for opening or closing the airflow channel.

[0008] The second aspect of this application provides an air conditioning device, including: an indoor unit, including a housing, and an air outlet for a heat exchange duct; a vortex generator as described in any of the above technical solutions, disposed at the air outlet for the heat exchange duct, wherein the flow area of ​​the air outlet of the airflow channel is less than or equal to the flow area of ​​the air outlet for the heat exchange duct.

[0009] The air conditioning equipment and its vortex generator provided in this disclosure can achieve the following technical effects:

[0010] The moving part moves unidirectionally relative to the airflow channel, opening or closing the channel intermittently. This results in intermittent airflow from the air outlets of the channel. The airflow is sheared and swirled at the edges of the outlets, generating air vortices, thus achieving vortex-based air delivery. Vortex-based air delivery enables low-speed, long-distance air delivery without causing discomfort due to excessive air velocity or requiring increased air volume. This allows airflow to be delivered to the target area while maintaining airflow comfort, even with increased energy consumption of the air conditioning equipment. Furthermore, the unidirectional movement of the moving part simplifies its motion and reduces the difficulty of controlling the vortex generator.

[0011] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0012] 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:

[0013] Figure 1 This is a schematic diagram of the structure of an air conditioning device provided in an embodiment of this disclosure;

[0014] Figure 2 This is a schematic diagram of the structure of a vortex ring generator provided in an embodiment of this disclosure;

[0015] Figure 3 This is an exploded structural diagram of a motor, gear, and impeller provided in an embodiment of this disclosure;

[0016] Figure 4(a) is a schematic diagram of the impeller rotation process of a vortex ring generator provided in an embodiment of this disclosure;

[0017] Figure 4(b) is a schematic diagram of the impeller rotation process of another vortex ring generator provided in an embodiment of this disclosure;

[0018] Figure 4(c) is a schematic diagram of the impeller rotation process of another vortex ring generator provided in an embodiment of this disclosure;

[0019] Figure 4(d) is a schematic diagram of the impeller rotation process of another vortex ring generator provided in the embodiment of this disclosure;

[0020] Figure 5This is a schematic diagram of the structure of another air conditioning device provided in an embodiment of this disclosure;

[0021] Figure 6 This is a schematic diagram of the structure of another air conditioning device provided in an embodiment of this disclosure;

[0022] Figure 7 This is a schematic diagram of another vortex ring generator provided in an embodiment of this disclosure;

[0023] Figure 8 This is a schematic diagram of another vortex ring generator provided in the embodiments of this disclosure.

[0024] Figure label:

[0025] 100 Vortex generator; 10 Drive unit; 1 Motor; 2 Gear; 22 Groove; 23 Process hole; 3 Impeller; 31 Rotating shaft; 32 Key; 33 Protrusion; 34 Groove; 4 Housing; 41 Airflow channel; 42 Air inlet of airflow channel; 43 Air outlet; 45 Second side wall; 46 Third side wall; 48 Fifth side wall; 200 Air conditioning equipment; 21 Housing; 211 Heat exchange air duct outlet. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Unless otherwise stated, the term "multiple" means two or more.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0032] Combination Figure 1 , Figures 4(a)-4(d) , Figure 5 and Figure 6 As shown, this embodiment of the disclosure provides a vortex ring generator 100, which is used in an air conditioning device 200. The air conditioning device 200 can be an air conditioner or a ducted air conditioner, such as... Figure 1 As shown, the air conditioning equipment is a cabinet-type air conditioner, such as... Figure 5 The air conditioning unit shown is a wall-mounted air conditioner, such as... Figure 6 The air conditioning equipment shown is a ducted air conditioner.

[0033] The vortex ring generator 100 includes a housing 4 and a moving part.

[0034] The movable part is located inside the airflow channel and moves in one direction relative to the airflow channel to open or close the airflow channel.

[0035] The movable part can rotate or slide in one direction relative to the airflow channel. During the unidirectional movement of the movable part, the airflow channel is opened or closed to achieve vortex ring air delivery. Moreover, the unidirectional movement mode is simple.

[0036] Optionally, the moving part includes impeller 3.

[0037] like Figure 2 As shown, the housing 4 defines an airflow channel 41, and the airflow entering the airflow channel 41 from the air inlet 42 flows out through the air outlet 43 of the airflow channel 41.

[0038] The impeller 3 is located within the airflow channel 41 and can rotate unidirectionally (e.g., clockwise or counterclockwise) relative to the airflow channel 41. Within one rotation cycle (e.g., one rotation of the impeller), the impeller has an isolation position and a ventilation position. In the isolation position, the impeller 3 blocks the airflow channel 41 to close the airflow channel 41, and in the ventilation position, the impeller 3 avoids the airflow channel 41 to open the airflow channel 41.

[0039] The impeller 3 has an isolation position and a ventilation position, realizing the intermittent opening and closing of the airflow channel 41. Thus, the airflow entering the airflow channel 41 from the air inlet 42 intermittently flows out from the air outlet 43 of the airflow channel 41, that is, the air outlet 43 of the airflow channel 41 intermittently discharges air. The airflow is sheared and rolled up at the air outlet 43 of the airflow channel 41 to generate an air vortex ring.

[0040] A vortex ring is a closed-loop ring structure. Vortex rings possess characteristics such as structural stability and low energy dissipation during motion. Therefore, utilizing air vortex rings to deliver fresh air can significantly reduce the influence of the environment on the delivered air, thereby overcoming the buoyancy effect caused by temperature differences. This allows for precise and efficient air delivery to target areas or locations, a process known as vortex ring air delivery. In other words, vortex ring air delivery enables long-distance, directional, and efficient air delivery, ensuring that the air reaches the target area.

[0041] like Figure 3 As shown, the outer surface of the impeller 3 is provided with protrusions 33 and grooves 34 arranged sequentially along the circumference of the impeller 3. During the rotation of the impeller 3, the protrusions 33 rotate with the impeller 3. At the partition position, the protrusions 33 block the airflow channel 41 to close the airflow channel 41. At the ventilation position, the protrusions 33 avoid the airflow channel 41 to open the airflow channel 41. The grooves 34 connect the air inlet 42 and the air outlet 43 of the airflow channel. The airflow entering through the air inlet 42 of the airflow channel flows into the air outlet 43 of the airflow channel 41 through the grooves 34.

[0042] Outwardly protruding protrusions 33 are provided on the outer surface of the impeller in the circumferential direction. By using the protrusions 33 to block or avoid the airflow channel 41, the airflow channel 41 is intermittently closed and opened, thereby generating a vortex ring at the air outlet 43 of the airflow channel 41. This structure is simple and low in cost.

[0043] The protrusions and grooves are spaced apart on the outer surface of the impeller in the circumferential direction, which allows the impeller to rotate in one direction to achieve vortex air delivery and reduces the difficulty of controlling the impeller rotation.

[0044] Optionally, there are multiple impellers 3. In the partition position, the protrusions 33 of two adjacent impellers 3 abut each other, and airflow cannot pass between the abutting protrusions 33, thus closing the airflow channel 41. In the ventilation position, the protrusions 33 of two adjacent impellers 3 are staggered, and the grooves 34 of two adjacent impellers 3 correspond to each other. The airflow entering the air inlet 42 of the airflow channel flows into the air outlet 43 through the gap between the grooves 34 of two adjacent impellers 3, thus opening the airflow channel 41.

[0045] During the rotation of the impeller 3, the positional relationship (abutting or offsetting) between the protrusions 33 on two adjacent impellers 3 and the positional relationship between the grooves 34 change. By utilizing whether the protrusions 33 on two adjacent impellers 3 abut or offset, and whether the grooves 34 on two adjacent impellers 3 correspond, the airflow channel 41 is closed or opened, and the air outlet 43 is intermittently supplied with air, thereby generating a vortex ring at the air outlet 43.

[0046] Multiple impellers 3 are parallel in axis and are arranged sequentially along a preset direction, wherein the preset direction is perpendicular to the axis of the impellers 3, so that the protrusions 33 of two adjacent impellers 3 can abut or be staggered.

[0047] Optionally, such as Figure 2 As shown, the housing 4 includes a first sidewall, a second sidewall 45, a third sidewall 46, and a fourth sidewall.

[0048] The second sidewall 45 is disposed opposite to the first sidewall; the third sidewall 46 is disposed between one end of the first sidewall and one end of the second sidewall 45; the fourth sidewall is disposed between the other end of the first sidewall and the other end of the second sidewall 45.

[0049] Optionally, such as Figure 2 As shown, the shell is rectangular in shape. The shell 4 also includes a fifth side wall 48 and a sixth side wall. The fifth side wall 48 is located on one side of the first side wall, the second side wall 45, the third side wall 46 and the fourth side wall. The sixth side wall is located on the other side of the first side wall, the second side wall 45, the third side wall 46 and the fourth side wall. The third side wall 46 and the fourth side wall are arranged correspondingly, and the fifth side wall 48 and the sixth side wall are arranged correspondingly. The first side wall, the second side wall 45, the third side wall 46, the fourth side wall, the fifth side wall 48 and the sixth side wall together form an airflow channel 41.

[0050] The air inlet 42 of the airflow channel is located on the first side wall, and the air outlet 43 of the airflow channel 41 is located on the second side wall 45. The axial direction of the impeller 3 passes through the third side wall 46 and the fourth side wall, so that the axial direction of the impeller 3 is not parallel to the flow direction of the airflow in the airflow channel 41. In this way, during the rotation of the impeller 3, the protrusion 33 can block the airflow channel 41 to close the airflow channel 41 or avoid the airflow channel 41 to open the airflow channel 41.

[0051] The axial direction of the impeller 3 is not parallel to the flow direction of the airflow in the airflow channel 41; that is, there is a non-zero angle between the axial direction of the impeller 3 and the flow direction of the airflow in the airflow channel 41. Optionally, such as Figure 3 As shown, the axial direction of the impeller 3 is perpendicular to the airflow direction in the airflow channel 41. This allows the impeller 3 to completely close the airflow channel 41 at the isolation position, while shortening the axial length of the impeller 3 and reducing the cost of the impeller 3. There are 5 impellers 3, which are arranged sequentially in a direction perpendicular to the axial direction of the impeller 3 and the airflow direction in the airflow channel 41.

[0052] Optionally, each impeller 3 has multiple protrusions 33 and multiple grooves 34, with the number of protrusions 33 and grooves 34 being equal, and the multiple protrusions 33 and grooves 34 being spaced apart along the circumference of the impeller 3.

[0053] In this way, during the rotation of the impeller 3, the protrusions 33 of two adjacent impellers 3 can abut against each other. When the protrusions 33 of two adjacent impellers 3 are staggered, the grooves 34 of two adjacent impellers 3 correspond to each other, ensuring that the airflow can flow into the air outlet 43 through the gap between the grooves 34 of two adjacent impellers 3. Optionally, the cross-section of the protrusion 33 is fan-shaped, and the center of the circle containing the fan shape is located on the axial direction of the impeller 3.

[0054] The angular radius of the fan shape is θ. During the rotation of impeller 3 by θ, the protrusions 33 of two adjacent impellers 3 can continuously abut against each other, thereby achieving the closure of the airflow channel 41 for a preset time.

[0055] The fan-shaped cross-section of protrusion 33 facilitates its processing and manufacturing, thus simplifying the forming process of impeller 3.

[0056] Optionally, the groove 34 can also be fan-shaped, thereby further simplifying the forming process of the impeller 3.

[0057] Optionally, at the partition position, the protrusion 33 of the outermost impeller 3 abuts against the inner wall surface of the airflow channel 41 to prevent airflow from flowing into the air outlet 43 through the gap between the protrusion 33 of the outermost impeller 3 and the inner wall surface of the airflow channel 41 at the partition position, so as to achieve complete closure of the airflow channel 41 at the partition position.

[0058] Optionally, the vortex ring generator 100 further includes a drive device 10, which is drivenly connected to a plurality of impellers 3 to drive the impellers 3 to rotate.

[0059] The air conditioning equipment 200 includes a controller connected to the drive device 10. The controller sends a control command to the drive device 10 according to the air supply parameters of the air conditioning equipment 200. The drive device 10 controls the rotation of the impeller 3 (including rotation speed and / or rotation direction) according to the control command, so that the vortex generator 100 generates a vortex corresponding to the air supply parameters of the air conditioning equipment 200.

[0060] The number of drive devices 10 can be one or more. When one drive device 10 is used, the structure of the vortex ring generator 100 can be simplified and the cost of the vortex ring generator 100 can be reduced.

[0061] Optionally, the drive unit 10 includes a motor 1 and a gear 2.

[0062] The motor 1 is located outside the housing 4 so that the motor 1 does not occupy the area inside the airflow channel 41 and avoids the motor 1 blocking the airflow channel 41.

[0063] There is one motor 1, and the number of gears 2 is equal to the number of impellers 3 and corresponds one-to-one. Each gear 2 is driven to the corresponding impeller 3. The motor shaft of motor 1 is driven to one of the multiple gears 2 to drive one of the multiple gears 2 to rotate. Each gear 2 meshes with the adjacent gear 2.

[0064] The motor shaft of motor 1 drives one of the multiple gears 2 to rotate, such as... Figure 2 As shown, the motor 1 shaft drives one of the middle gears 2 among multiple gears 2 to rotate, thereby shortening the response time of the outermost gear 2. One of the multiple gears 2 meshes with the adjacent gear 2, thereby driving the adjacent gear 2 to rotate. The gear 2 drives the impeller 3 connected to it to rotate around its own axis.

[0065] Gear 2 and impeller 3 are rotatably connected, which can be achieved by snap-fit, welding, bonding, screw connection, or by the mating of key 32 and groove 22. For example... Figure 3 As shown, the impeller 3 includes a rotating shaft 31, and a protrusion 33 is arranged circumferentially along the rotating shaft 31. The rotating shaft 31 passes through the process hole 23 on the gear 2. A key 32 is provided on one of the inner wall surface of the process hole 23 and the outer wall surface of the rotating shaft 31, and a groove 22 is provided on the other. The key 32 is adapted to the groove 22 and is inserted into the groove 22 to realize the connection between the gear 2 and the impeller 3.

[0066] like Figure 2As shown, motor 1 drives gear 2 to rotate, and multiple gears 2 mesh with each other and are fixed on the rotating shaft 31 of each impeller 3. Air enters the airflow channel 41 through the air inlet 42. Optionally, the air inlet 42 of the airflow channel can be connected to a blower to achieve the required airflow speed. Driven by the blower, the airflow flows into the air inlet 42 of the airflow channel, thereby increasing the air intake volume of the airflow channel 42. The motor 1 drives the impeller 3 to rotate continuously, thereby intermittently opening and closing the airflow channel 41 of the vortex ring generator 100, and intermittently generating air vortex rings at the air outlet 43 to achieve vortex ring air delivery.

[0067] Each impeller 3 has protrusions 33 and grooves 34 spaced apart, so that the motor 1 can generate a vortex ring by rotating continuously in one direction without needing to start and stop in the forward direction. This reduces the requirements for the drive device 10 and avoids the noise generated during the reciprocating operation of the motor 1 in both directions.

[0068] Motor 1 can operate at a fixed speed or at a variable speed. Optionally, motor 1 operates at a fixed speed to better control the opening and closing time of airflow channel 41 to meet the air volume delivered in a single opening and closing, thereby effectively generating independent vortex rings.

[0069] It is understood that the drive device 10 can also be multiple motors 1, the number of motors 1 is equal to the number of impellers 3 and corresponds one-to-one, and the motor shaft of each motor 1 is fixedly connected to the corresponding impeller 3 to drive the corresponding impeller 3 to rotate.

[0070] like Figure 3 As shown, the thickness (angular radius) of the protrusion 33 on the impeller 3 is determined by the included angle θ between two adjacent sides. The thickness of the protrusion 33 on the impeller 3 determines the opening and closing time of the airflow channel 41 during one rotation of the impeller 3. When the angular radius θ of the protrusion 33 on the impeller 3 > 90°, the closing time of the airflow channel 41 during one rotation of the impeller 3 is greater than the opening time of the airflow channel 41; when the angular radius θ of the protrusion 33 on the impeller 3 = 90°, the closing time of the airflow channel 41 during one rotation of the impeller 3 is equal to the opening time of the airflow channel 41; when the angular radius θ of the protrusion 33 on the impeller 3 < 90°, the closing time of the airflow channel 41 during one rotation of the impeller 3 is less than the opening time of the airflow channel 41. The opening and closing of the airflow channel 41 is achieved by the rotation of the impeller 3. Figure 5 .

[0071] like Figure 2 In this embodiment, five arrayed impellers 3 are used to fill the airflow channel 41, and each impeller 3 has the same size. When the motor 1 drives the middle impeller 3 to rotate clockwise, it engages with the gear 2 to drive the adjacent impellers 3 to rotate in opposite directions.

[0072] Figure 4(a) shows the initial state of the small impeller 3. At this time, the impeller is in the isolated position, the airflow channel 41 is in the isolated (closed) state, and the airflow is stored in the left groove on the impeller. The arrow indicates the rotation direction of the impeller. Since the protrusion 33 on the impeller 3 has a thickness of angle θ, as shown in Figure 4(b), the airflow channel 41 is always in the isolated state during the rotation of the impeller 3 from the initial state by an angle of θ / 2. As shown in Figure 4(c), where the curved arrow indicates the rotation direction of the impeller, when the rotation angle Φ of the impeller 3 is greater than θ / 2, the airflow channel 41 opens, and the air in the groove flows to the air outlet. As shown in Figure 4(d), when the rotation angle θ / 2 of the impeller 3 is less than Φ and π-θ / 2, the airflow channel 41 is in the ventilation state, and the impeller is in the ventilation position. Each time the airflow channel 41 opens and closes, it achieves one or more intermittent air supply, shearing and rolling up at the air outlet 43 to generate an air vortex ring.

[0073] In practical applications, the size of θ, the number of protrusions 33, and the number of impellers 3 can all be flexibly designed.

[0074] like Figure 7 and Figure 8 As shown, when the height of the airflow channel 41 is equal, increasing the number of impellers 3 can reduce the range of airflow disturbance caused by the rotation of the impellers 3, thereby reducing the size of the vortex ring generator 100. In other words, for the same airflow channel 41 size, by increasing the number of impellers 3 proportionally, the range of airflow disturbance caused by the continuous rotation of the impellers 3 can be reduced without affecting the airflow volume delivered by the airflow channel 41 in a single opening and closing.

[0075] It is understandable that, in addition to the impeller, the moving parts can also be in the form of louvers, for example, there are multiple louvers, each louver is movably connected to the housing and can move relative to the housing between a partitioned position and a ventilated position, wherein, in the partitioned position, two adjacent louvers contact each other to close the airflow passage, and in the ventilated position, two adjacent louvers separate to open the airflow passage.

[0076] In summary, the vortex ring generator 100 provided in this application uses the drive device 10 to continuously drive and realize the intermittent opening and closing of the airflow channel 41. The duration of opening / closing of the airflow channel 41 and the overall air volume requirement of the vortex ring air supply are realized through the impeller 3's own structural design (e.g., the design of θ). In addition, the air supply speed of the vortex ring air supply device is determined by the air supply parameters (e.g., air volume) of the air conditioning equipment 200.

[0077] This invention utilizes a vortex generator 100 to achieve intermittent air supply. It shears and rolls up air at the air outlet 43 to generate an air vortex. The air supply speed of the vortex generator 100 is determined by the air supply parameters of the air conditioning device 200, avoiding the introduction of an additional power unit. At the same time, this invention has a simple structure, does not have complex parts, has a small product size, and can be designed independently or embedded / combined with different types of air supply terminals.

[0078] This disclosure also provides an air conditioning device 200, including an indoor unit and a vortex generator 100 as described in any of the above embodiments.

[0079] The indoor unit includes a casing 21, inside which a heat exchange air duct is provided. The air outlet 211 and the air inlet of the heat exchange air duct are both located on the casing 21. A fan and a heat exchanger are provided inside the heat exchange air duct. Under the action of the fan, the airflow enters the heat exchange air duct through the air inlet and exchanges heat with the heat exchanger. The air after heat exchange flows out through the air outlet of the heat exchange air duct.

[0080] The vortex ring generator 100 is located at the air outlet 211 of the heat exchange air duct (i.e., the air outlet of the heat exchange air duct) and is connected to the air outlet of the heat exchange air duct. The airflow flowing out of the air outlet of the heat exchange air duct enters the air inlet 42 of the airflow channel and is sent out from the air outlet 43 of the airflow channel 41 under the action of the push plate to form a vortex ring.

[0081] The flow area of ​​the heat exchange duct outlet 211 is greater than or equal to the flow area of ​​the air outlet 43 of the airflow channel 41. Here, the air outlet 43 of the airflow channel 41 refers to the total flow area of ​​all air outlets 43 of the airflow channel 41. When the fluid flows in the channel, the cross section of the channel perpendicular to the flow direction is called the flow cross section, and the area of ​​the flow cross section is called the flow area.

[0082] When the flow area of ​​the air outlet of the heat exchange duct is equal to the flow area of ​​the air supply outlet 43 of the airflow channel 41, the vortex generator 100 occupies the entire air outlet of the heat exchange duct, and the airflow at the air outlet 211 of the heat exchange duct can be completely sent out through the air supply outlet 43 of the airflow channel 41. All the airflow flowing out of the air outlet of the heat exchange duct is sent to the room in the form of a vortex.

[0083] When the flow area of ​​the outlet of the heat exchange duct is greater than the flow area of ​​the air outlet 43 of the air supply channel 41, the vortex generator 100 occupies part of the outlet of the heat exchange duct. A portion of the airflow from the outlet 211 of the heat exchange duct is sent out in the form of a vortex ring through the air supply outlet 43 of the air supply channel 41. The other portion of the airflow from the outlet 211 of the heat exchange duct does not enter the air supply channel 41 and is not sent out in the form of a vortex ring, so that the other portion of the airflow from the outlet 211 of the heat exchange duct is sent out in the form of normal air supply, ensuring the air supply volume of the air conditioning equipment 200.

[0084] The air conditioning device 200 provided in this embodiment includes the vortex ring sound generating device of any of the above embodiments, and therefore has all the beneficial effects of the vortex ring generating device 100 of any of the above embodiments, which will not be repeated here.

[0085] Optionally, there may be multiple vortex ring generators 100, which are spaced apart within the heat exchange duct outlet 211.

[0086] Setting up multiple vortex generators 100 can increase the amount of vortex generated, further increasing the air delivery distance. Furthermore, by specifically setting the positions of multiple vortex generators 100, the location of vortex generation can be controlled, thereby controlling the air delivery of the air conditioning equipment 200.

[0087] Multiple vortex generators 100 are spaced apart, meaning there is a gap between two adjacent vortex generators 100, so that the flow area of ​​the air outlet of the heat exchange duct is greater than the flow area of ​​the air supply outlet 43 of the airflow channel 41, ensuring the air volume of the air conditioning equipment 200.

[0088] Optionally, two of the multiple vortex generators 100 are located at opposite ends of the outlet of the heat exchange duct along its length, so that the vortex generators do not affect the airflow from the middle of the outlet of the heat exchange duct. Figure 1 Taking a cabinet-type air conditioner as an example, the heat exchange air duct outlet 211 is elongated, and there are two vortex generators 100, located at opposite ends of the elongated shape. This ensures normal airflow (non-vortex type) in the middle of the elongated shape, thereby guaranteeing the airflow of the air conditioning unit 200. Figure 5 Taking a wall-mounted air conditioner as an example, the heat exchange air duct outlet 211 is elongated, and there are two vortex generators 100, located at opposite ends of the elongated shape. This ensures normal airflow (non-vortex type) in the middle of the elongated shape, thus guaranteeing the airflow of the air conditioning unit 200. Figure 6 Taking the ducted air conditioner as an example, the heat exchange duct outlet 211 is long and narrow, and there are two vortex generators 100, which are located at both ends of the length of the long strip. In this way, the middle part of the long strip is for normal air outlet (non-vortex type air outlet), thereby ensuring the air volume of the air conditioning equipment 200.

[0089] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A vortex ring generator, characterized in that, include: The casing defines the airflow channel; A movable component, disposed within the airflow channel and moving unidirectionally relative to the airflow channel, is used to open or close the airflow channel; The movable component includes: Multiple impellers are provided, one of which is located on one side of the axial direction of an adjacent impeller. The axial directions of the multiple impellers are parallel, and the multiple impellers are arranged sequentially along a preset direction, wherein the preset direction is perpendicular to the axial direction of the impellers. The outer surface of the impeller in the circumferential direction is provided with protrusions and grooves arranged sequentially along the circumferential direction of the impeller. The impeller is located in the airflow channel and is configured to rotate unidirectionally relative to the airflow channel. In one rotation cycle, the impeller has a ventilation position in which the protrusions avoid the airflow channel to open the airflow channel and a partition position in which the protrusions block the airflow channel to close the airflow channel. In the partition position, the protrusions of two adjacent impellers abut against each other, and in the ventilation position, the protrusions of two adjacent impellers are staggered. A drive device, connected to a plurality of the impellers to drive the impellers to rotate, includes gears, the number of which is equal to the number of the impellers and corresponds one-to-one, each gear being connected to a corresponding impeller drive to drive adjacent impellers to rotate in the opposite direction; The thickness of the protrusion on the impeller is determined by the included angle θ between two adjacent sides. The thickness of the protrusion determines the opening and closing time of the airflow channel during one rotation of the impeller. When the angular radius θ of the protrusion on the impeller is greater than 90°, the time for the airflow channel to close during one rotation is greater than the time for it to open. When the angular radius θ of the protrusion on the impeller is equal to 90°, the time for the airflow channel to close during one rotation is equal to the time for it to open. When the angular radius θ of the protrusion on the impeller is less than 90°, the time for the airflow channel to close during one rotation is less than the time for it to open. The rotation of the impeller realizes the opening and closing of the airflow channel.

2. The vortex ring generator according to claim 1, characterized in that, The driving device includes: An electric motor, wherein the motor shaft is drivenly connected to one of the plurality of gears and configured to drive one of the plurality of gears to rotate in one direction, each of the gears meshing with the adjacent gear.

3. The vortex ring generator according to any one of claims 1 to 2, characterized in that, The axial direction of the impeller is not parallel to the direction of airflow within the airflow channel.

4. The vortex ring generator according to claim 3, characterized in that, The housing includes: First sidewall; The second sidewall is disposed opposite to the first sidewall; The third sidewall is located between one end of the first sidewall and one end of the second sidewall; The fourth sidewall is located between the other end of the first sidewall and the other end of the second sidewall; The air inlet of the airflow channel is located on the first side wall, the air outlet of the airflow channel is located on the second side wall, and the impeller passes through the third and fourth side walls axially.

5. The vortex ring generator according to any one of claims 1 to 2, characterized in that, The number of protrusions and grooves on each impeller is equal and there are multiple protrusions and grooves, and the protrusions and grooves are spaced apart along the circumference of the impeller.

6. The vortex ring generator according to any one of claims 1 to 2, characterized in that, The protrusion has a fan-shaped cross-section, and the center of the circle containing the fan shape is located on the axial direction of the impeller.

7. An air conditioning device, characterized in that, include: The indoor unit, including the casing, is equipped with a heat exchange air duct and an air outlet; The vortex ring generator as described in any one of claims 1 to 6 is disposed at the air outlet of the heat exchange duct, and the flow area of ​​the air outlet of the airflow channel is less than or equal to the flow area of ​​the air outlet of the heat exchange duct.

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