Duct structure and air supply device

Abstract

This application relates to a duct structure and air supply device, including a duct, an opening / closing assembly, and a locking assembly. The duct has an opening for airflow. The opening / closing assembly includes a drive member and an opening / closing member, which is configured to be rotatably disposed relative to the duct about a predetermined first axis. The drive member is drively connected to the opening / closing member and can drive the opening / closing member to move toward or away from a target position for closing the opening / closing. The locking assembly is disposed in the duct and is used to provide a locking force to the opening / closing member to prevent it from leaving the target position. Compared with the prior art, the opening / closing member is positioned at the target position for closing the opening / closing not only by the self-locking force of the drive member, but also by the enhanced positional stability provided by the locking assembly. The positioning of the opening / closing member is more reliable, the opening / closing member is less likely to loosen at the target position, the sealing effect of the opening / closing is good, and the duct is less prone to air leakage.

Description

Technical Field

[0001] This application relates to the field of air supply equipment technology, and in particular to an air duct structure and air supply device. Background Technology

[0002] Air supply devices such as heaters, air coolers, and bladeless fans all have air outlets and fans. The power generated by the fan's rotation propels airflow toward the air outlets. To guide the airflow, air ducts are usually installed within the air supply device. For air supply devices with multiple air outlets, opening and closing components need to be installed within the air ducts to switch the air duct connected to the fan, thus achieving air delivery from different outlets.

[0003] In related technologies, the opening and closing assembly includes an opening and closing element and a motor. When the motor drives the opening and closing element to rotate, it can switch the opening and closing element between a first position that closes the air duct and a second position that opens the air duct. However, when the motor drives the opening and closing element to be positioned in the first and second positions, the opening and closing element is positioned solely by the motor's self-locking force. The positioning structure is unreliable, and the opening and closing element is prone to loosening, resulting in weakened sealing and air leakage problems in the air duct. Summary of the Invention

[0004] This application addresses the problem that in existing air supply devices, the opening and closing components in the duct are positioned solely by the self-locking force of the motor, resulting in unreliable positioning structures, easy loosening, reduced sealing, and air leakage in the duct. It proposes an air duct structure and air supply device that achieves the technical effects of reliable positioning structure for the opening and closing components, good sealing, and reduced air leakage in the duct.

[0005] A duct structure, comprising:

[0006] Air duct, which has an opening for air circulation;

[0007] An opening and closing assembly includes a drive member and an opening and closing member, the opening and closing member being configured to be rotatably disposed relative to the air duct about a predetermined first axis, the drive member being driveably connected to the opening and closing member and capable of driving the opening and closing member to move toward or away from a target position for closing the flow port.

[0008] A locking assembly, located in the air duct, is used to provide a locking force to the opening and closing member to prevent it from leaving the target position.

[0009] In one embodiment, the air duct has at least two flow ports, and the opening / closing member is configured to switch between at least two target positions during rotation, closing the flow port corresponding to each target position as the opening / closing member passes through each target position in sequence.

[0010] In one embodiment, the locking assembly elastically connects the air duct and the opening / closing member, providing an elastic force to the opening / closing member to prevent it from leaving the target position.

[0011] In one embodiment, the opening / closing member has a transition portion that is rotatably disposed relative to the air duct about the first axis, and the locking assembly elastically connects the transition portion and the air duct to prevent the opening / closing member from leaving the target position by an elastic force on the transition portion.

[0012] In one embodiment, the locking assembly includes a first rotating member, a second rotating member, and an elastic member, wherein one end of the first rotating member is connected to the adapter and rotates with the adapter;

[0013] One end of the second rotating member is rotatably disposed in the air duct about a second axis parallel to the first axis;

[0014] The elastic element is connected to and elastically deforms as the positions of the other ends of the first rotating element and the second rotating element change.

[0015] In one embodiment, the other end of the second rotating member is always located in the radial direction of the rotation path of the other end of the first rotating member.

[0016] In one embodiment, the other end of the first rotating member has a first sleeve portion, and the other end of the second rotating member has a second sleeve portion; the first sleeve portion extends in a direction perpendicular to the first axis and is slidably sleeved with the second sleeve portion, and the elastic member is sleeved on the first sleeve portion and the second sleeve portion.

[0017] In one embodiment, the second rotating member includes a connecting rod, one end of which is rotatably disposed in the air duct about the second axis;

[0018] The second sleeve portion is rotatably configured relative to the other end of the connecting rod about a rotation direction parallel to the second axis and the first axis.

[0019] In one embodiment, the opening / closing element is capable of switching between two target positions that independently close the two flow ports;

[0020] When the opening and closing member switches between the two target positions and moves to a position where the rotation direction is coplanar with the first axial direction and the second axial direction, the elastic member is at its maximum deformation.

[0021] In one embodiment, when the opening / closing member moves to the coplanar position, the elastic member is at its maximum compression and lies in a plane perpendicular to the first axial direction, which is located between the second axial direction and the rotation direction.

[0022] In one embodiment, the opening and closing member further has a sliding portion, and the opening and closing member is located within the air duct;

[0023] The air duct is provided with a guide part, which is engaged with the sliding part to guide the sliding part to slide around the first axis.

[0024] In one embodiment, the plurality of flow ports include a main inlet, a first outlet, and a second outlet;

[0025] When the opening and closing component rotates, it can switch between a first target position and a second target position;

[0026] When the device is in the first target position, the opening and closing component closes the first exit, and the main inlet and the second exit are connected; when the device is in the second target position, the opening and closing component closes the second exit, and the main inlet and the first exit are connected.

[0027] In one embodiment, an installation position is provided in the air duct for installing a heat exchange device, which exchanges heat with the air flowing through it.

[0028] An air supply device comprising the air duct structure described in any of the preceding claims.

[0029] In the aforementioned duct structure and air supply device, when it is necessary to close the duct's flow outlet, the driving component drives the opening and closing component to rotate to the target position to close the flow outlet. Simultaneously, due to the obstruction of the locking assembly, the opening and closing component is not easily displaced from the target position without the driving component's assistance, allowing it to maintain a relatively stable position. When it is necessary to open the flow outlet, the driving force generated by the driving component overcomes the obstruction of the locking assembly, driving the opening and closing component to rotate away from the target position, thus opening the flow outlet.

[0030] Compared with existing technologies, the opening and closing component is positioned at the target position of closing the flow port not only by the self-locking force of the driving component, but also by the resistance force provided by the locking component, which enhances its positional stability. The positioning of the opening and closing component is more reliable, and the opening and closing component is not easy to loosen at the target position. It has a good sealing effect on the flow port and the air duct is less likely to have air leakage problems. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the external shape of the air duct structure in some embodiments of this application;

[0032] Figure 2 for Figure 1 An exploded view of the air duct structure shown;

[0033] Figure 3 for Figure 2 Another view of the air duct structure shown;

[0034] Figure 4 for Figure 1 The diagram shows the air duct structure with the opening and closing components in the first target position.

[0035] Figure 5 for Figure 1 The diagram shows the air duct structure with the opening and closing components in a coplanar position.

[0036] Figure 6 for Figure 1 The diagram shows the air duct structure with the opening and closing components in the second target position.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1000, Air duct structure; X1, First axis; X2, Second axis; X3, Rotation direction; W, Target position; W1, First target position; W2, Second target position; G, Coplanar position; 100, Air duct; S, Flow outlet; S1, Main inlet; S2, First outlet; S3, Second outlet; 110, First air casing;

[0039] 120. Second air casing; 101. Mounting position; 102. Guide part; 103. Rotating mounting part; 200. Opening and closing assembly; 210. Driving component; 211. Motor; 220. Opening and closing component; 221. Adapter part; 222. Sliding part; 300. Locking assembly; 310. First rotating component; 311. First sleeve part; 320. Second rotating component; 321. Connecting rod; 322. Second sleeve part; 322a. Self-rotating part; 322b. Sleeve part; 330. Elastic component; 400. Heat exchange device. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] Please see Figure 1 , Figure 2 and Figure 3 One embodiment of this application provides an air duct structure 1000, including an air duct 100, an opening / closing assembly 200, and a locking assembly 300. The air duct 100 has a flow port S for airflow. The opening / closing assembly 200 includes a drive member 210 and an opening / closing member 220. The opening / closing member 220 is configured to be rotatably disposed relative to the air duct 100 about a predetermined first axis X1. The drive member 210 is drively connected to the opening / closing member 220 and is capable of driving the opening / closing member 220 toward or away from a target position W for closing the flow port S. The locking assembly 300 is disposed in the air duct 100 and is used to provide a locking force to the opening / closing member 220 to prevent it from leaving the target position W.

[0047] The airflow port S is used for airflow and can be either the inlet or outlet of the air duct 100. Multiple airflow ports S can be configured, and correspondingly, multiple opening / closing components 200 can be configured. Each opening / closing component 200 has an opening / closing element 220 applied to opening and closing one airflow port S. Alternatively, multiple opening / closing elements 220 within the same opening / closing component 200 can be driven by the same driving element 210, each used to open and close different airflow ports S. The number and specific configuration of the airflow ports S, opening / closing elements 220, are not specifically limited in this embodiment, as long as the opening / closing element 220 can open and close at least one airflow port S. Of course, when the air duct 100 includes multiple airflow ports S, only one airflow port S can be opened and closed by the opening / closing element 220, and the other airflow states can be uncontrolled by the opening / closing element 220, depending on the actual application.

[0048] The air duct 100 can be a shell-like structure. When the air duct structure 1000 is applied to the air supply device, the air duct 100 can be set independently relative to other structures of the air supply device, or it can be integrally formed with other structures of the air supply device. There are no specific limitations on the specific application of the air duct structure 1000 in the air supply device.

[0049] The driving component 210 can provide rotational driving force to the opening and closing component 220, driving the opening and closing component 220 to rotate around a set first axis X1. The driving component 210 may include a power source such as a rotary motor 211 or a motor, as well as a transmission structure (such as a gear, coupling, or reducer) connecting the power source and the opening and closing component 220. As long as it can drive the opening and closing component 220 to rotate, it is acceptable. The specific structure of the driving component 210 is not specifically limited in this application embodiment.

[0050] The opening / closing element 220 can be an opening / closing plate, the shape of which is roughly similar to the flow port S that it opens and closes, and can open and close the corresponding flow port S. The specific construction of the opening / closing element 220 is not limited in this embodiment, as long as it can realize the opening and closing of the flow port S. It should be noted that closing the flow port S by the opening / closing element 220 includes the opening / closing element 220 covering the flow port S, and also includes the opening / closing element 220 being located on the path of airflow to the flow port S. In this case, the opening / closing element 220 can block the airflow, preventing it from flowing to the flow port S. Even if the opening / closing element 220 does not cover the flow port S, it is located on the path of the air duct 100 on which the airflow to the flow port S is directed. That is to say, the target position W of the opening / closing element 220 can be a position covering the corresponding flow port S, or a position within the air duct 100 that obstructs the airflow to the corresponding flow port S.

[0051] The opening / closing element 220 can be disposed inside or outside the air duct 100. When the opening / closing element 220 is disposed outside the air duct 100, the target position W of the opening / closing element 220 can be the position where the opening / closing element 220 covers the corresponding flow port S. The arrangement of the opening / closing element 220 on the air duct 100 is not limited in this embodiment, as long as it can enable the opening / closing element 220 to open and close the corresponding flow port S.

[0052] The locking component 300 is disposed on the air duct 100 and is used to provide a resisting force to the opening and closing component 220 to prevent the opening and closing component 220 from leaving the target position W. That is, when the driving component 210 drives the opening and closing component 220 to leave the target position W, it is necessary to overcome the resisting force provided by the locking component 300. This increases the difficulty for the opening and closing component 220 to leave the target position W and enhances the positional stability of the opening and closing component 220 at the target position W.

[0053] The resistance force provided by the locking assembly 300 can be an adsorption force, an elastic force, a frictional force, etc. For example, when the resistance force provided by the locking assembly 300 is an adsorption force, a magnetic adsorption component (such as a magnet) can be installed on the air duct 100 corresponding to the target position W of the opening / closing member 220. When the opening / closing member 220 is at the target position W, the magnetic adsorption component can attract the opening / closing member 220, enhancing the stability of the opening / closing member 220 at the target position W. As another example, when the resistance force provided by the locking assembly 300 is an elastic force, a torsion spring can be installed on the rotating shaft of the opening / closing member 220. The torsion spring generates minimal torque on the rotating shaft of the opening / closing member 220 when the opening / closing member 220 is at the target position W, and the torque generated by the torsion spring overcomes the opening / closing member 220's movement away from the target position W. For example, when the resistance provided by the locking assembly 300 is friction, a clamping structure can be set at the position corresponding to the target position W in the air duct 100. When the opening / closing member 220 is at the target position W, it is within the clamping range of the clamping structure. When the opening / closing member 220 needs to leave the target position W, it is necessary to overcome the friction generated by the clamping structure on the opening / closing member 220. Specific embodiments of the locking assembly 300 are not limited here.

[0054] In the aforementioned air duct structure 1000, when it is necessary to close the flow port S of the air duct 100, the driving member 210 drives the opening and closing member 220 to rotate to the target position W for closing the flow port S. Simultaneously, due to the obstruction of the locking component 300, the opening and closing member 220 is not easily displaced from the target position W without the driving member 210, and can maintain a relatively stable position at the target position W. When it is necessary to open the flow port S, the driving force generated by the driving member 210 overcomes the obstruction of the locking component 300 and drives the opening and closing member 220 to rotate away from the target position W, thereby opening the flow port S.

[0055] Compared with the prior art, the opening and closing component 220 is positioned at the target position W of closing the flow port S not only by the self-locking force of the driving component 210, but also by the resistance force provided by the locking component 300, which enhances its positional stability. The positioning of the opening and closing component 220 is more reliable, and the opening and closing component 220 is not easy to loosen at the target position W. It has a good sealing effect on the flow port S, and the air duct 100 is less likely to have air leakage problems.

[0056] In some embodiments, please refer to Figure 1 The air duct 100 has at least two flow ports S. The opening and closing element 220 is configured to switch between at least two target positions W during rotation. When the opening and closing element 220 passes through each target position W in sequence, it closes the flow port S corresponding to the target position W respectively. That is, the same opening and closing element 220 can be used to open and close multiple flow ports S, which can improve the utilization efficiency of the opening and closing element 220 and simplify the structure of the air duct structure 1000.

[0057] Regarding the practical application of multiple target positions W of a single opening / closing element 220 during rotation corresponding to the closure of multiple flow ports S, this application embodiment does not impose specific limitations. As an example, the air duct 100 has multiple air outlets located on the annular plane formed by the rotation trajectory of the opening / closing element 220. When the opening / closing element 220 stops at each target position W, one end of the opening / closing element 220 in the radial direction can close the corresponding air outlet. As another example, the air duct 100 has multiple air outlets located in a plane perpendicular to the rotation axis of the opening / closing element 220. When the opening / closing element 220 stops at each target position W, one end of the opening / closing element 220 in the axial direction can close the corresponding air outlet.

[0058] In some embodiments, the locking assembly 300 elastically connects the air duct 100 and the opening / closing member 220, and provides an elastic force to the opening / closing member 220 to prevent it from leaving the target position W.

[0059] The locking assembly 300 can elastically connect the air duct 100 and the opening / closing member 220 by including a torsion spring as described above, using the torsion spring to connect the air duct 100 and the opening / closing member 220, and using the torsion spring to prevent the opening / closing member 220 from leaving the target position W. Of course, the specific construction of the locking assembly 300 can also adopt the scheme in the following embodiments.

[0060] At this point, the locking assembly 300 provides an elastic force to prevent the opening / closing element 220 from leaving the target position W, which is structurally reliable and easy to implement.

[0061] In a specific embodiment, please refer to Figure 2 and Figure 3 The opening and closing member 220 has a connecting part 221, which is rotatably arranged relative to the air duct 100 about a first axis X1. The locking assembly 300 elastically connects the connecting part 221 and the air duct 100 and provides an elastic force to the connecting part 221 to prevent the opening and closing member 220 from leaving the target position W.

[0062] The opening / closing element 220 is rotatably connected to the air duct 100 via a connecting part 221. The connecting part 221 can be a connecting shaft, a connecting hole, etc., and its specific form is not limited. The locking assembly 300 elastically connects the connecting part 221 and the air duct 100, and prevents the opening / closing element 220 from leaving the target position W by directly applying a resisting force to the connecting part 221.

[0063] When the adapter 221 is an adapter shaft, the locking assembly 300 has a sleeve hole that is anti-rotationally connected to the adapter shaft. When the adapter 221 is an adapter hole, the locking assembly 300 has a connecting shaft that extends into the adapter hole and is fixedly connected to the adapter hole.

[0064] At this time, the locking assembly 300 applies resistance force to the transition part 221 of the opening and closing member 220, and hinders the rotation of the opening and closing member 220 by hindering the rotation of the transition part 221. The action is more direct and also helps to simplify the air duct structure 1000.

[0065] Of course, in other embodiments, the locking component 300 can also restrict the movement of the opening and closing member 220 by acting on other parts of the opening and closing member 220. The embodiments of this application are not limited to the above solutions.

[0066] In a specific embodiment, the locking assembly 300 includes a first rotating member 310, a second rotating member 320, and an elastic member 330. One end of the first rotating member 310 is connected to the adapter 221 and rotates with the adapter 221. One end of the second rotating member 320 is rotatably disposed in the air duct 100 about a second axis X2 parallel to the first axis X1. The elastic member 330 is connected to and elastically deforms according to the position changes of the other ends of the first rotating member 310 and the second rotating member 320.

[0067] The first rotating member 310 and the second rotating member 320 can be rod-shaped, block-shaped, etc. One end of the first rotating member 310 (defined as the first adapter end) is fixedly connected to the adapter part 221, which may include the socket or adapter shaft mentioned above. The adapter part 221 drives the first rotating member 310 to rotate when it rotates. One end of the second rotating member 320 (defined as the second adapter end) is rotatably connected to the air duct 100 and rotates around the second axis X2. The first axis X1 and the second axis X2 are parallel and do not coincide. The elastic member 330 connects the other end of the first rotating member 310 (defined as the first following end) and the other end of the second rotating member 320 (defined as the second following end). The connection method may be, but is not limited to, both deformable ends of the elastic member 330 being fixedly connected to the first following end and the second following end.

[0068] The elastic element 330 can be one or a combination of springs, elastic rubber elements, elastic silicone elements, etc. Preferably, the elastic element 330 is a spring, which has a large deformation capacity and recovery capacity, and a more reliable structure.

[0069] When the adapter 221 rotates, the first adapter end of the first rotating member 310 rotates around the first axis X1, and its first following end rotates around the first axis X1. This rotation, along with the movement of the second following end via the elastic member 330, causes the second adapter end to rotate. Simultaneously, the second following end, constrained by the second adapter end, can only rotate around the second axis X2. That is, while the first following end rotates around the first axis X1, the second following end rotates around the second axis X2. Since their rotation centers do not coincide, the extension / retraction length of the elastic member 330 connecting the first and second following ends changes during rotation. When the elastic member 330 undergoes extension / retraction deformation, it reacts against the first following end, restricting its movement and thus hindering the rotation of the first adapter end. This achieves the purpose of preventing the opening / closing member 220 from rotating and opening the target position W.

[0070] When the opening / closing member 220 is at the target position W, the elastic member 330 can be at its pre-compressed length, pre-stretched length, or free initial length, with the distance between the first following end and the second following end being at its minimum. In some cases, when the opening / closing member 220 wants to leave the target position W, the distance between the first following end and the second following end tends to increase. In this case, the elastic member 330 can be a tension spring (corresponding to the pre-stretched length or free initial length), which will resist the increase in the distance between the first following end and the second following end, thus preventing the opening / closing member 220 from leaving the target position W. In other cases, when the opening / closing member 220 wants to leave the target position W, the distance between the first following end and the second following end tends to decrease. In this case, the elastic member 330 can be a compression spring (corresponding to the pre-stretched length or free initial length), which will resist the decrease in the distance between the first following end and the second following end, thus preventing the opening / closing member 220 from leaving the target position W.

[0071] Understandably, without the drive of the drive member 210, the position of the opening / closing member 220 can be kept stable at the target position W because the position change needs to overcome the resistance force generated by the elastic member 330. When the driving force of the drive member 210 can overcome the resistance force of the elastic member 330, the opening / closing member 220 can rotate away from the target position W and thus open the flow port S.

[0072] At this time, the locking assembly 300 is an elastic deformation structure composed of a first rotating member 310, a second rotating member 320 and an elastic member 330, which is stable and reliable.

[0073] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The other end of the second rotating member 320 is always located in the radial direction of the rotation path of the other end of the first rotating member 310.

[0074] The rotation path of the other end of the first rotating member 310 refers to an arc path arranged in a plane perpendicular to the first axial direction X1 and surrounding the first axial direction X1. The other end of the second rotating member 320 is always located on this arc path. That is, the other ends of the first rotating member 310 and the other ends of the second rotating member 320 only change position in the rotational radial direction of the first rotating member 310 (the direction perpendicular to and intersecting the first axial direction X1). Therefore, the elastic member 330 only undergoes expansion and contraction deformation in the rotational radial direction of the first rotating member 310. Understandably, there are multiple rotational radial directions, similar to how a circle has multiple radial directions.

[0075] Understandably, the elastic extension direction of the elastic element 330 corresponds to the rotational radial direction, as in a linear spring.

[0076] At this time, the elastic element 330 only needs to be able to stretch and deform in one direction. The degree of elastic deformation of the elastic element 330 is concentrated in the elastic stretching direction, which helps to protect the elastic element 330. Moreover, the locking assembly 300 can provide elastic resistance more reliably.

[0077] In a specific embodiment, the other end of the first rotating member 310 has a first sleeve portion 311, and the other end of the second rotating member 320 has a second sleeve portion 322. The first sleeve portion 311 extends in a direction perpendicular to the first axial direction X1 and is slidably sleeved with the second sleeve portion 322. The elastic member 330 is sleeved on the first sleeve portion 311 and the second sleeve portion 322.

[0078] The second socket 322 is slidably fitted onto the first socket 311 along the extension direction of the first socket 311. At this time, the second socket 322 and the second socket 322 can only change position in the extension direction of the first socket 311, which also makes the elastic member 330 fitted on both of them only able to elastically deform along the extension direction.

[0079] One of the second socket portion 322 and the first socket portion 311 can be a socket shaft, and the other can be a socket hole.

[0080] At this time, the second socket 322 and the first socket 311 are interlocked, realizing the installation of the elastic member 330. This restricts the other end of the first rotating member 310 and the other end of the second rotating member 320 to only change position in the aforementioned radial direction of rotation. Moreover, the structure is simple and easy to implement.

[0081] Of course, in other embodiments, in order to limit the positional change between the other end of the first rotating member 310 and the other end of the second rotating member 320 to only in the aforementioned radial direction of rotation, the other end of the first rotating member 310 and the other end of the second rotating member 320 may be connected by a corrugated pipe, and the elastic member 330 may be sleeved on the corrugated pipe.

[0082] Understandably, when the elastic member 330 is sleeved on the first sleeve portion 311 and the second sleeve portion 322, the elastic member 330 is limited between the first sleeve portion 311 and the second sleeve portion 322. The elastic member 330 can be fixedly connected to or abut against the first sleeve portion 311 and the second sleeve portion 322, without limitation.

[0083] For specific implementation examples, please refer to Figure 1 , Figure 2 and Figure 3 The second rotating component 320 also includes a connecting rod 321. One end of the connecting rod 321 is rotatably disposed in the air duct 100 about the second axis X2. The second sleeve portion 322 is rotatably disposed about the other end of the connecting rod 321 about the rotation direction X3 of the first axis X1 parallel to the second axis X2.

[0084] The connecting rod 321 is rod-shaped, and the second sleeve 322 is disposed at one end of the connecting rod 321. Under the constraint of the first sleeve 311, the angle between the second sleeve 322 and the connecting rod 321 changes. At this time, the second sleeve 322 can rotate relative to the other end of the connecting rod 321, thus supporting the connection between the second sleeve 322 and the first sleeve 311. Understandably, during the movement of the second sleeve 322 along with the first sleeve 311, the rotation direction X3 moves around the first axis X1.

[0085] There are various ways to achieve the self-rotation connection between the connecting rod 321 and the second sleeve 322, which can be achieved through structures such as shafts and bearings, and will not be limited or elaborated here.

[0086] Specifically, the second socket 322 includes a rotor portion 322a and a socket sub-portion 322b disposed on the rotor portion 322a. The socket sub-portion 322b is sleeved with the first socket 311, and the rotor portion 322a is rotatably connected to the connecting rod 321 around the rotation direction X3.

[0087] Of course, in other embodiments, in order to support the connection between the second socket 322 and the first socket 311, the structure of the second rotating member 320 can also be in other forms, such as through the structure of the multi-link 321 or other methods. Those skilled in the art can make the settings based on conventional designs.

[0088] In some embodiments, please refer to Figure 4 , Figure 5 and Figure 6 The opening / closing member 220 can switch between two target positions W that independently close the two flow ports S. When the opening / closing member 220 switches between the two target positions W and moves to the coplanar position G where the rotation direction X3 is coplanar with the first axis X1 and the second axis X2, the elastic member 330 is at its maximum deformation.

[0089] The opening / closing member 220 is defined to have a first target position W1 and a second target position W2. When the opening / closing member 220 switches between the first target position W1 and the second target position W2, it will pass through a coplanar position G. At the coplanar position G, the elastic member 330 is at its maximum deformation, and the elastic member 330 exerts the greatest resistance to the movement of the opening / closing member 220.

[0090] When the opening / closing member 220 moves from the first target position W1 to the second target position W2, the resistance force exerted on the opening / closing member 220 by the elastic member 330 first increases and then decreases. Alternatively, the elastic member 330 may have the greatest compression at the coplanar position G. It may also have the greatest stretching at the coplanar position G. The specific choice depends on the actual setup and is not limited here.

[0091] At this time, the movement of the opening / closing component 220 will be smoother when the flow port S is closed.

[0092] Specifically, in this embodiment, when the opening / closing member 220 moves to the coplanar position G, the elastic member 330 is at its maximum compression and lies in a plane perpendicular to the first axial direction X1, where the first axial direction X1 is located between the second axial direction X2 and the rotation direction X3. At this time, the movement ranges of the first rotating member 310 and the second rotating member 320 overlap, making the locking assembly 300 structure more compact and occupying less space.

[0093] In some embodiments, please refer to Figure 2 and Figure 3 The opening and closing member 220 also has a sliding part 222. The opening and closing member 220 is located in the air duct 100. A guide part 102 is provided in the air duct 100. The guide part 102 is engaged with the sliding part 222 and is used to guide the sliding part 222 to slide around the first axis X1.

[0094] The guide portion 102 and the sliding portion 222 are in a concave-convex fit, one of which can be protruding and the other can be recessed. For example, the guide portion 102 is a guide groove and the sliding portion 222 is a sliding shaft.

[0095] When the opening and closing member 220 rotates, its sliding part 222 can slide along the guide part 102 on the air duct 100. The air duct 100 can provide support force to the opening and closing member 220 through the cooperation of the sliding part 222 and the guide part 102, making the movement of the opening and closing member 220 smoother and more precise.

[0096] The sliding part 222 and the guide part 102 can be symmetrically arranged along the direction perpendicular to the first axis X1, so that the opening and closing member 220 is subjected to more uniform force. The specific arrangement of the sliding part 222 and the guide part 102 is not limited in this embodiment.

[0097] In some embodiments, please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 The system has multiple flow ports S, including a main inlet S1, a first outlet S2, and a second outlet S3. When the opening / closing member 220 rotates, it can switch between a first target position W1 and a second target position W2. When located at the first target position W1, the opening / closing member 220 closes the first outlet S2, and the main inlet S1 and the second outlet S3 are connected. When located at the second target position W2, the opening / closing member 220 closes the second outlet S3, and the main inlet S1 and the first outlet S2 are connected.

[0098] In practical applications, the main inlet S1 is used to supply air into the air duct 100, and the first outlet S2 and the second outlet S3 are both used to supply air out of the air duct 100.

[0099] At this time, the air duct 100 has two outlets, which can realize air outlet in two positions or / or directions, making the air duct structure 1000 more functional.

[0100] Furthermore, the first outlet S2 is positioned opposite to the main inlet S1, and the second outlet S3 is located on one side of the first outlet S2 and the main inlet S1 in the opposite direction. At this time, the three are arranged in a triangular pattern, which helps to save space inside the air supply device.

[0101] In some embodiments, please refer to Figure 2 and Figure 3 An installation position 101 is provided inside the air duct 100. The installation position 101 is used to install the heat exchange device 400, which is used to exchange heat with the air flowing through it.

[0102] The structure of the mounting position 101 is determined according to the structure of the heat exchange device 400. The connection between the mounting position 101 and the heat exchange device 400 can be threaded, snap-fit, plug-in, etc., and there is no specific limitation.

[0103] The heat exchanger 400 is used to heat or cool the air flowing within the air duct 100, thereby delivering warm or cool air and raising or lowering the temperature of the external environment. The heat exchanger 400 can be a resistance heating device, an infrared heating device, a semiconductor cooling device, etc., and is not limited thereto.

[0104] At this time, a heat exchange device 400 is installed in the air duct 100, which enriches the function of the air duct 100.

[0105] In a preferred embodiment of this application, please refer to Figures 1 to 6 The air duct structure 1000 includes an air duct 100, an opening and closing assembly 200, and a locking assembly 300. The air duct 100 includes a main inlet S1, a first outlet S2, and a second outlet S3. The opening and closing assembly 200 includes an opening and closing member 220 and a driving member 210. When the opening and closing member 220 rotates around a first axis X1 under the drive of the driving member 210, it can switch between a first target position W1 that closes the first outlet S2 and a second target position W2 that closes the second outlet S3. The locking assembly 300 includes a first rotating member 310, a second rotating member 320, and an elastic member 330. One end of the first rotating member 310 is connected to the adapter 221 of the opening and closing member 220 and rotates with the adapter 221. One end of the second rotating member 320 is rotatably disposed in the air duct 100 around a second axis X2 parallel to the first axis X1. The second rotating member 320 has a second sleeve portion 322 at one end, and the first rotating member 310 has a first sleeve portion 311 at the other end. The first sleeve portion 311 and the second sleeve portion 322 are slidably sleeved together in a direction perpendicular to the first axial direction X1. The elastic member 330 is sleeved on the first sleeve portion 311 and the second sleeve portion 322. The opening and closing member 220 has a coplanar position G between the first target position W1 and the second target position W2. When the opening and closing member 220 is in the coplanar position G, the rotation centers of the second axial direction X2, the first axial direction X1, and the second sleeve portion 322 are coplanar, and the elastic member 330 reaches its maximum deformation.

[0106] In addition, this application also provides an air supply device (not shown), which includes the air duct structure 1000 in any of the above embodiments. The air supply device includes all the above-described beneficial effects, which will not be elaborated here.

[0107] Understandably, the air supply device has a power component for promoting airflow. The power component may include structures such as a fan and a volute, which will not be described in detail. Those skilled in the art can make conventional settings.

[0108] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0109] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A duct structure, characterized in that, The air duct structure (1000) includes: The air duct (100) has an air inlet (S) for air circulation; The opening and closing assembly (200) includes a drive member (210) and an opening and closing member (220), the opening and closing member (220) being configured to be rotatably disposed relative to the air duct (100) about a predetermined first axis (X1), the drive member (210) being drively connected to the opening and closing member (220) and capable of driving the opening and closing member (220) to move toward or away from a target position (W) for closing the flow port (S); A locking assembly (300), disposed in the air duct (100), is used to provide a locking force to the opening and closing member (220) to prevent it from leaving the target position (W); The locking assembly (300) elastically connects the air duct (100) and the opening / closing member (220) to provide the opening / closing member (220) with an elastic force that prevents it from leaving the target position (W); The opening / closing member (220) has a connecting part (221) which is rotatably disposed relative to the air duct (100) about the first axis (X1). The locking assembly (300) elastically connects the connecting part (221) and the air duct (100) and provides an elastic force to the connecting part (221) to prevent the opening / closing member (220) from leaving the target position (W). The locking assembly (300) includes a first rotating member (310), a second rotating member (320), and an elastic member (330). One end of the first rotating member (310) is connected to the adapter (221) and rotates with the adapter (221). One end of the second rotating member (320) is rotatably disposed in the air duct (100) about a second axis (X2) parallel to the first axis (X1); The elastic element (330) is connected to and elastically deforms in response to changes in the position of the other end of the first rotating element (310) and the other end of the second rotating element (320).

2. The air duct structure according to claim 1, characterized in that, The air duct (100) has at least two flow ports (S), and the opening and closing member (220) is configured to switch between at least two target positions (W) during rotation. When the opening and closing member (220) passes through each of the target positions (W) in sequence, it closes the flow port (S) corresponding to each target position (W).

3. The air duct structure according to claim 2, characterized in that, The plurality of flow ports (S) include a main inlet (S1), a first outlet (S2), and a second outlet (S3); When the opening and closing member (220) rotates, it can switch between a first target position (W1) and a second target position (W2); When located at the first target position (W1), the opening and closing member (220) closes the first outlet (S2), and the main inlet (S1) and the second outlet (S3) are connected; when located at the second target position (W2), the opening and closing member (220) closes the second outlet (S3), and the main inlet (S1) and the first outlet (S2) are connected.

4. The air duct structure according to claim 1, characterized in that, The other end of the second rotating member (320) is always located in the radial direction of the rotation path of the other end of the first rotating member (310).

5. The air duct structure according to claim 4, characterized in that, The other end of the first rotating member (310) has a first socket (311), and the other end of the second rotating member (320) has a second socket (322); The first sleeve portion (311) extends in a direction perpendicular to the first axis (X1) and is slidably sleeved with the second sleeve portion (322), and the elastic element (330) is sleeved on the first sleeve portion (311) and the second sleeve portion (322).

6. The air duct structure according to claim 5, characterized in that, The second rotating component (320) includes a connecting rod (321), one end of which is rotatably disposed in the air duct (100) about the second axis (X2); The second sleeve (322) is rotatably disposed relative to the other end of the connecting rod (321) about a rotation direction (X3) parallel to the second axis (X2) and the first axis (X1).

7. The air duct structure according to claim 6, characterized in that, The opening / closing element (220) is capable of switching between two target positions (W) where the two flow ports (S) are closed independently; When the opening / closing member (220) switches between the two target positions (W) and moves to the coplanar position (G) where the rotation direction (X3) is coplanar with the first axis (X1) and the second axis (X2), the elastic member (330) is at its maximum deformation.

8. The air duct structure according to claim 7, characterized in that, When the opening / closing member (220) moves to the coplanar position (G), the elastic member (330) is at its maximum compression and is in a plane perpendicular to the first axis (X1), which is located between the second axis (X2) and the rotation direction (X3).

9. The air duct structure according to claim 1, characterized in that, The opening and closing element (220) also has a sliding part (222), and the opening and closing element (220) is located inside the air duct (100); The air duct (100) is provided with a guide part (102), which is connected to the sliding part (222) to guide the sliding part (222) to slide around the first axis (X1).

10. The air duct structure according to claim 1 or 2, characterized in that, An installation position (101) is provided in the air duct (100), the installation position (101) is used to install a heat exchange device (400), the heat exchange device (400) is used to exchange heat with the air flowing through it.

11. An air supply device, characterized in that, Includes the air duct structure (1000) as described in any one of claims 1 to 10.

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