air supply device

Abstract

This application relates to an air supply device, including a body, a head unit, a resistance element, and a drive element. The head unit is connected to the body and configured to fold relative to the body. The resistance element is located on the body and / or the head unit and configured to provide a holding resistance that prevents the head unit from folding relative to the body. The body and the head unit serve as the installation target and the other as the transmission target. The drive element is located on one of the body and the head unit and is drively connected to the other, and is configured to drive the head unit to overcome the holding resistance and fold. In the above-mentioned air supply device, the head unit can maintain its relatively stable position under the holding resistance of the resistance element. When folding is required, the head unit can overcome the holding resistance under the drive element and automatically fold, making the folding of the head unit more convenient. Furthermore, under the action of the holding resistance, the head unit can hover during the process from fully unfolded to fully folded, enabling it to deliver air at different angles and adapt to diverse scenario requirements.

Description

Technical Field

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

[0002] Circulating fans offer advantages such as more even airflow and energy savings, making them increasingly popular. Circulating fans typically consist of a main unit and a fan head. A common challenge in this field is minimizing the space occupied by the circulating fan for easy storage when not in use.

[0003] In related technologies, circulating fans generally rely on splicing pipes or telescopic rods for storage, but this method is cumbersome. Although a few circulating fans have a folding function, the folding of the fan head depends on a manual button latch, which requires manual folding and is inconvenient to operate. Utility Model Content

[0004] Therefore, it is necessary to provide an air supply device that can be easily folded to address the above-mentioned problems.

[0005] An air supply device, the air supply device comprising:

[0006] body;

[0007] The head unit is connected to the fuselage and is configured to fold relative to the fuselage.

[0008] A drag element, disposed on the fuselage and / or the head, and configured to provide a holding drag capable of preventing the head from folding relative to the fuselage; and

[0009] A drive unit, wherein one of the body and the head is a mounting target and the other is a transmission target; the drive unit is disposed on the mounting target and is drively connected to the transmission target, and is configured to drive the head to fold over the holding resistance.

[0010] The aforementioned air supply device features a foldable head relative to the body. Without external intervention, the head maintains relative stability under the holding resistance of the resistance components. When folding is required, the head overcomes the holding resistance under the drive of the driving components and folds automatically, making folding easier. Furthermore, under the influence of the holding resistance, the head can hover during the transition from fully unfolded to fully folded, allowing for airflow at different angles. This expands the device's usability and adapts to diverse application scenarios.

[0011] In one embodiment, the driving element is a stepper motor or a servo motor; the air supply device further includes a controller, which is communicatively connected to the driving element.

[0012] In this way, the air supply device can accurately control the folding angle of its head to meet the user's requirements for the degree of folding.

[0013] In one embodiment, the head is rotatably connected to the body about a first direction and folds relative to the body by rotating about the first direction, and the first direction intersects the height direction of the air supply device.

[0014] Thus, the head has a simple folding method, and correspondingly, the driving components are also easier to drive.

[0015] In one embodiment, the transmission target has mating teeth that are arranged about the first direction;

[0016] The air supply device also includes a transmission gear, which is connected to the driving component and meshes with the mating gear.

[0017] Thus, since the mating teeth are arranged around the first direction, the transmission gear moves along the mating teeth when it meshes with them, which in turn forms a rotation around the first direction. Correspondingly, the drive unit drives the machine head to rotate around the first direction.

[0018] In one embodiment, the circumferential curvature of the mating teeth around the first direction is 2π / 3 to 4π / 3.

[0019] In this way, the head can rotate relative to the body within this arc range and achieve various angle adjustments within this arc range.

[0020] In one embodiment, the mounting target has a mating shaft, the transmission target has a mating groove, and the mating shaft mates with the mating groove;

[0021] The machine head and the machine body are rotatably connected around the first direction via the mating shaft and the mating groove; the mating teeth are provided in the groove wall surrounding the mating shaft in the mating groove.

[0022] In this way, the machine head and the machine body can form a stable rotational connection through the mating shaft and the mating groove, and the mating teeth surrounding the mating shaft will generate a force between the machine head and the machine body, driving the machine head to rotate stably relative to the machine body.

[0023] In one embodiment, the mating shaft has a mounting position on the side opposite to the mating groove, and the mating shaft also has a gear receiving groove communicating with the mounting position;

[0024] The driving component is located at the mounting position, and the transmission gear is located in the gear receiving groove; the groove wall of the gear receiving groove has a clearance notch, and the transmission gear meshes with the mating gear through the clearance notch.

[0025] Thus, placing the drive component at the mounting position can shorten its transmission distance, and the transmission gear can directly mesh effectively with the mating teeth through the clearance notch. Through the force between the two, the drive component is driven in the opposite direction to rotate the mounting target.

[0026] In one embodiment, the mating shaft further has a gear support, which is disposed in the gear receiving groove and located at one axial end of the transmission gear, and abuts against the transmission gear.

[0027] In this way, the gear support abuts against the transmission gear in the axial direction, which can enhance the stability of its rotation and reduce the probability of its axial movement or even displacement.

[0028] In one embodiment, the mating shaft has a first through hole, the mating groove has a second through hole, and the resistance element has a third through hole; the first through hole, the second through hole, and the third through hole are coaxially arranged and their axial directions are parallel to the first direction;

[0029] The air supply device also includes a rotating shaft structure, which passes through the first through hole, the second through hole and the third through hole to rotatably connect the mating rotating shaft and the mating rotating groove.

[0030] Thus, the rotating shaft structure will connect the rotating shaft and the rotating groove in a way that allows rotation around the first direction, that is, connect the machine head and the machine body in a way that allows rotation around the first direction.

[0031] In one embodiment, the resistance element is disposed on one of the fuselage and the head, and in frictional contact with the other.

[0032] In this way, the resistance component is fixed relative to one of the fuselage and the nose, while generating friction on the other. This friction acts as a maintaining resistance, used to maintain the angle of the nose relative to the fuselage. The principle is simple and easy to implement. In addition, the friction exists as long as there is frictional contact between the two components and does not disappear in stages, which is beneficial for achieving stepless adjustment of the angle of the nose relative to the fuselage.

[0033] In one embodiment, the head is the mounting target, and the body is the transmission target.

[0034] Thus, mounting the drive unit on the head bracket can effectively save space in the machine body rotation mechanism, facilitate the wiring of the electrical connection with the drive unit, and make the installation and removal of the drive unit easier.

[0035] In one embodiment, the holding drag can also prevent the nose from deploying relative to the fuselage;

[0036] The drive unit is also configured to drive the head to unfold over the holding resistance.

[0037] In this way, the drive component can both drive the machine head to fold and unfold, realizing automatic folding and unfolding of the machine head. The resistance component ensures that the machine head remains stable in position whether it is fully folded, fully unfolded, or in an intermediate state between fully folded and fully unfolded. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a partial structural schematic diagram of the air supply device in one embodiment of this application.

[0040] Figure 2 for Figure 1 The diagram shows an enlarged view of the air supply device at point A.

[0041] Figure 3 for Figure 1 The diagram shows a partial disassembled structure of the air supply device.

[0042] Figure 4 for Figure 3 The diagram shows an enlarged view of the air supply device at point B.

[0043] Figure 5 for Figure 3 The diagram shows the structure of the fan head support in the air supply device.

[0044] Figure 6 for Figure 5 The diagram shows an enlarged view of the head support at point C.

[0045] Figure 7 for Figure 3 The diagram shows the structural design of the air supply device.

[0046] Figure 8 for Figure 3 The diagram shows the structure of the drive component in the air supply device.

[0047] Figure 9 for Figure 3 The diagram shows the structure of the transmission gear in the air supply device.

[0048] Explanation of reference numerals in the attached drawings: 100, air supply device; 10, body; 11, mating gear; 111, first end; 112, second end; 12, blocking part; 13, mating groove; 131, assembly groove; 1311, loading inlet; 132, second through hole; 20, machine head; 21, machine head bracket; 211, mating shaft; 2111, first through hole; 2112, mounting position; 2113, gear receiving groove; 2114, clearance notch; 2115, gear support; 212, nut groove; 22, machine head body; 23, outer shell; 30, resistance component; 31, third through hole; 40, driving component; 41, output shaft; 50, transmission gear; 51, flat hole; 61, shaft structure; 63, shaft nut; 70, screw; 80, outer cover. Detailed Implementation

[0049] 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.

[0050] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0051] Furthermore, where the term "and / or" appears, it merely describes the relationship between related objects and indicates that three relationships can exist. For example, A and / or B can represent the relationship between A and B: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects before and after it. Where the terms "first" and "second" appear, these terms 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. Therefore, a feature specified with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0052] 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.

[0053] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0054] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0055] Besides those mentioned in the background section, circulating fans generally rely on splicing pipes or telescopic rods to achieve both tabletop and floor use. They employ multi-joint telescopic solutions, resulting in significant swaying and poor reliability when unfolded, often leading to a poor user experience. Circulating fans with folding functions only have two states: unfolded and folded (i.e., upright and fully folded fixed states). The angle is not adjustable, the airflow direction is limited, and their usage is relatively simple, making it difficult to meet the diverse needs of various scenarios such as beds, dining tables, sofas, and standing positions.

[0056] Please see Figures 1 to 3 An embodiment of this application provides an air supply device 100, including a body 10, a head 20, a resistance member 30, and a drive member 40. The head 20 is connected to the body 10 and configured to fold relative to the body 10. The resistance member 30 is disposed on the body 10 and / or the head 20 and configured to provide a holding resistance that prevents the head 20 from folding relative to the body 10. One of the body 10 and the head 20 is a mounting target, and the other is a transmission target. The drive member 40 is disposed on the mounting target and drively connected to the transmission target, and is configured to drive the head 20 to fold over the holding resistance.

[0057] In one embodiment, the air supply device 100 is a fan, specifically a circulating fan. It is understood that in other embodiments, the air supply device 100 may also be an air purifier, a heater, etc., without specific limitations. To achieve its normal function, the air supply device 100 may also include a connecting pipe and a chassis (not shown), the connecting pipe being connected to the body 10, and the chassis being connected to the end of the connecting pipe away from the body 10 for support on the ground. Furthermore, the head unit 20 may include fan blades, a blower, etc., which will not be described in detail here.

[0058] The folding of the nose cone 20 relative to the fuselage 10 means that the nose cone 20 can be folded so that it at least partially overlaps with the fuselage 10 in the height direction. The folding action includes, but is not limited to, rotation, movement, or a combination of rotation and movement, etc., and is not specifically limited here. Understandably, the nose cone 20 can also be unfolded relative to the fuselage 10 after folding. The unfolding of the nose cone 20 can be driven by the drive unit 40 or achieved manually by the user.

[0059] The resistance element 30 provides a holding resistance to the head unit 20. When the drive unit 40 is not activated and no other external force intervenes, the holding resistance prevents the head unit 20 from folding the body 10 first. Therefore, the head unit 20 can stably remain in its original position when not folded, and can also stably remain in its current position when the drive unit 40 stops during the folding process. Correspondingly, the air supply device 100 has a folded storage state, a stored unfolded state, and an intermediate air supply state. In the folded storage state, the air supply device 100 is fully folded; in the stored unfolded state, the air supply device 100 is fully unfolded; and in the intermediate air supply state, the air supply device 100 is in a position between fully folded and fully unfolded.

[0060] The folding action is achieved by a drive component 40, which can be a motor and has an output shaft 41. The drive component 40 is located on the mounting target and is connected to the transmission target to generate a force between them. Under the drive of this force, the head 20 can perform the folding action. The drive component 40 being located on the mounting target means that the two are relatively fixed. The drive component 40 can be fixed to the mounting target by means of snap-fitting, bonding, screws 70, etc.

[0061] The aforementioned air supply device 100 has a foldable head unit 20 relative to the body 10. Without external intervention, the head unit 20 maintains a relatively stable position under the holding resistance of the resistance member 30. When folding is required, the head unit 20 overcomes the holding resistance under the drive member 40 and folds automatically, making folding the head unit 20 more convenient. Furthermore, under the action of the holding resistance, the head unit 20 can hover during the process from fully unfolded to fully folded, enabling it to deliver air at different angles. Thus, the air supply device 100 has more versatile usage options and can adapt to diverse scenario requirements.

[0062] In some embodiments, the holding resistance can also prevent the nose 20 from deploying relative to the fuselage 10. The drive 40 is also configured to drive the nose 20 to deploy over the holding resistance.

[0063] Thus, the drive component 40 can both drive the head 20 to fold and unfold, achieving automatic folding and unfolding of the head 20. The resistance component 30 ensures that the head 20 remains stable in position whether it is fully folded, fully unfolded, or in an intermediate state between fully folded and fully unfolded.

[0064] In some embodiments, the drive element 40 is a control motor, specifically a stepper motor or a servo motor.

[0065] The control motor refers to a motor whose output shaft 41 can be rotated by a program. In other words, the control motor can control the rotation angle of its output shaft 41.

[0066] In this way, the air supply device 100 can accurately control the folding angle of its head 20 to meet the user's requirements for the degree of folding.

[0067] In one embodiment, the drive element 40 is a stepper motor. The stepper motor adopts open-loop control, which does not require a feedback system. The position is directly controlled by pulse signals. It is simple to control, has strong real-time response, and is suitable for occasions that require rapid start and stop.

[0068] In some embodiments, the air supply device 100 further includes a controller (not shown), which is communicatively connected to the drive unit 40 and used to control the operation of the drive unit 40. The controller can also be communicatively connected to a terminal device (e.g., a remote control, a mobile phone, etc.) and can receive user commands through the terminal device.

[0069] In this way, the controller can drive the component 40 to work, control the start and stop of the component 40, and control the output torque of the component 40 to control the angle of rotation of the machine head 20 relative to the machine body 10.

[0070] In some embodiments, the resistance element 30 is disposed on one of the fuselage 10 and the head 20, and in frictional contact with the other, generating a frictional force thereon as a means of maintaining resistance. Specifically, the resistance element 30 may be a friction damping block.

[0071] Thus, the resistance component 30 is fixed relative to one of the fuselage 10 and the head 20, while generating frictional force on the other. This frictional force acts as a maintaining resistance, used to maintain the angle of the head 20 relative to the fuselage 10. Its principle is simple and easy to implement. Furthermore, the frictional force exists as long as there is frictional contact between the two components and does not disappear intermittently, which facilitates stepless adjustment of the angle of the head 20 relative to the fuselage 10. The frictional force also provides a deceleration effect, which helps the drive component 40 achieve more accurate angle control.

[0072] In some other embodiments, the resistance member 30 may also be a plurality of mutually cooperating protrusions and slots, with the protrusions provided on one of the machine heads 20 and the slots provided on the other; or, the resistance member 30 may be a ball-bearing structure, etc. It is only necessary to generate a holding resistance between the machine body 10 and the machine head 20 so that the machine head 20 can maintain its position and the holding resistance can be overcome by the driving force generated by the driving member 40. No specific limitation is made here.

[0073] In some embodiments, the head 20 is rotated in a first direction (e.g., Figure 1 The device is rotatably connected to the body 10 in the X direction shown, and folds relative to the body 10 by rotating about the first direction, and the first direction intersects the height direction of the air supply device 100.

[0074] Understandably, when the head unit 20 rotates about a first direction along a first rotation, it folds relative to the body 10. When the head unit 20 rotates about a first direction along a second rotation, it unfolds relative to the body 10. The first rotation and the second rotation are opposite. The drive unit 40 is configured to drive the head unit 20 to rotate about the first direction relative to the body 10 for folding or unfolding.

[0075] Specifically, the first direction can be perpendicular to the height direction of the air supply device 100 and also perpendicular to the front-back direction of the air supply device 100.

[0076] Thus, the head unit 20 has a simple folding method, and correspondingly, the driving component 40 is also easier to drive.

[0077] Please refer to the following: Figure 7 In some embodiments, the transmission target has a mating tooth 11, which is arranged about a first direction. The air supply device 100 also includes a transmission gear 50, which is pulsatorically connected to the drive member 40 and meshes with the mating tooth 11.

[0078] Understandably, the drive unit 40 is connected to the transmission gear 50 so as to achieve a transmission connection with the transmission target through the meshing of the transmission gear 50 and the mating teeth 11.

[0079] The transmission gear 50 engages with the output shaft 41 of the drive member 40 and can rotate with the output shaft 41 of the drive member 40. Specifically, the transmission gear 50 is sleeved on the output shaft 41 of the drive member 40 and forms an anti-rotation engagement with the output shaft 41 of the drive member 40. When the transmission gear 50 rotates, it can move along the mating teeth 11, and the mating teeth 11 guide the movement of the transmission gear 50.

[0080] Thus, since the mating teeth 11 are arranged around the first direction, the transmission gear 50 moves along the mating teeth 11 when it meshes with them, which in turn forms a rotation around the first direction. Correspondingly, the drive member 40 drives the machine head 20 to rotate around the first direction.

[0081] Specifically, the mating tooth 11 has a first end 111 and a second end 112, and the transmission gear 50 is configured to move along the mating tooth 11 between the first end 111 and the second end 112. The transmission target also has a blocking part 12, which is provided at the first end 111 and the second end 112, for blocking the transmission gear 50 in the direction of travel of the transmission gear 50.

[0082] When the transmission gear 50 is at one of the first end 111 and the second end 112, the machine head 20 is fully extended relative to the machine body 10, and the air supply device 100 is in a retracted and extended state; when the transmission gear 50 is at the other of the first end 111 and the second end 112, the machine head 20 is fully folded relative to the machine body 10, and the air supply device 100 is in a folded and retracted state; when the transmission gear 50 is between the first end 111 and the second end 112, the machine head 20 is fully folded relative to the machine body 10, and the air supply device 100 is in an intermediate air supply state.

[0083] More specifically, the circumferential curvature of the mating tooth 11 in the first direction is 2π / 3-4π / 3. Specifically, the circumferential curvature of the mating tooth 11 in the first direction can be, but is not limited to, 2π / 3, π, 4π / 3, etc.

[0084] In this way, the head 20 can rotate relative to the body 10 within this arc range and achieve various angle adjustments within this arc range.

[0085] Please refer to the following: Figures 4 to 6 In some embodiments, the mounting target has a mating shaft 211, and the transmission target has a mating groove 13, with the mating shaft 211 mating with the mating groove 13. The machine head 20 and the machine body 10 are rotatably connected about a first direction via the mating shaft 211 and the mating groove 13. The mating teeth 11 are disposed in the groove wall of the mating groove 13 surrounding the mating shaft 211.

[0086] Understandably, the rotating shaft 211 and the rotating groove 13 are rotatably engaged, and the axis of rotation of the two is the axis of rotation of the machine head 20 relative to the machine body 10.

[0087] Specifically, the mating gear 11 can be regarded as an internal gear with an arc of 2π / 3-4π / 3, and it is coaxially arranged with the mating shaft 211, both of which are the rotation axes of the machine head 20 relative to the machine body 10.

[0088] In this way, the machine head 20 and the machine body 10 can form a stable rotational connection through the engagement shaft 211 and the engagement groove 13, and the engagement teeth 11 surrounding the engagement shaft 211 generate a force between the machine head 20 and the machine body 10, driving the machine head 20 to rotate stably relative to the machine body 10.

[0089] Specifically, the resistance member 30 is disposed between the mating shaft 211 and the groove wall of the mating groove 13, and is fixed relative to one of them while in frictional contact with the other. Preferably, the mating groove 13 has an assembly groove 131 at its bottom in the first direction, and one side of the assembly groove 131 has an inlet 1311, allowing the resistance member 30 to be inserted into the assembly groove 131 through the inlet 1311, thus limiting the resistance member 30 in the first direction. One end of the mating shaft 211 abuts against the resistance member 30.

[0090] Furthermore, the rotating shaft 211 has a first through hole 2111, the rotating groove 13 has a second through hole 132, and the resistance member 30 has a third through hole 31. The first through hole 2111, the second through hole 132, and the third through hole 31 are coaxially arranged and their axial directions are parallel to the first direction.

[0091] The air supply device 100 also includes a rotating shaft structure 61, which passes through the first through hole 2111, the second through hole 132 and the third through hole 31 to rotatably connect the rotating shaft 211 and the rotating groove 13.

[0092] Specifically, the rotating shaft structure 61 may include a rotating shaft bolt and a rotating shaft nut 63, and the mounting target also has a nut groove 212. During assembly, the rotating shaft nut 63 is inserted into the nut groove 212 in the head bracket 21, and the rotating shaft bolt passes through the first through hole 2111, the second through hole 132 and the third through hole 31 and is assembled with the rotating shaft nut 63, thereby completing the rotational fixed connection between the head bracket 21 and the body 10.

[0093] Thus, the rotating shaft structure 61 connects the rotating shaft 211 and the rotating groove 13 in a rotatable manner around the first direction, that is, the machine head 20 and the machine body 10 are rotatable in the first direction.

[0094] In some embodiments, the mating shaft 211 has a mounting position 2112 on the side opposite to the mating groove 13, and the mating shaft 211 also has a gear receiving groove 2113 communicating with the mounting position 2112. The driving member 40 is disposed at the mounting position 2112, and the transmission gear 50 is disposed in the gear receiving groove 2113. The groove wall of the gear receiving groove 2113 has a clearance notch 2114, through which the transmission gear 50 meshes with the mating teeth 11.

[0095] Specifically, the drive component 40 can be fixed to the mounting position 2112 by screws 70, and the output shaft 41 of the drive component 40 extends into the gear receiving groove 2113. The output shaft 41 of the drive component 40 is a flat shaft (e.g., Figure 8 As shown), the transmission gear 50 has a flat hole 51 that mates with the flat shaft (as shown). Figure 9 (as shown), and is fitted onto the output shaft 41 through the flat hole 51.

[0096] Thus, by placing the drive component 40 at the mounting position 2112, its transmission distance can be shortened, and the transmission gear 50 can directly mesh effectively with the mating gear 11 through the clearance notch 2114, and through the force between the two, the drive component 40 is driven in the opposite direction to rotate the mounting target.

[0097] Furthermore, the rotating shaft 211 also has a gear support 2115, which is located in the gear receiving groove 2113 and at one end of the transmission gear 50 in the axial direction, and abuts against the transmission gear 50.

[0098] Understandably, the gear support 2115 abuts against the transmission gear 50 axially but does not prevent it from rotating about the axial direction. The transmission gear 50 is mounted on the output shaft 41 of the drive member 40, and the gear support 2115 is located at the end of the transmission gear 50 that is axially away from the drive member 40. In other words, the gear support 2115 abuts against the outermost end of the transmission gear 50.

[0099] Thus, the gear support 2115 abuts against the transmission gear 50 in the axial direction, which can enhance the stability of its rotation and reduce the probability of its axial movement, or even its dislodging from its original position and falling off the output shaft 41.

[0100] In some embodiments, the head 20 is the installation target and the body 10 is the transmission target.

[0101] Thus, mounting the drive unit 40 on the head bracket 21 can effectively save space for the rotating mechanism of the machine body 10, facilitate the wiring of the electrical connection with the drive unit 40, and make the installation and removal of the drive unit 40 easier.

[0102] Furthermore, the head unit 20 includes a head unit bracket 21 and a head unit body 22. The head unit is connected to the head unit bracket 21 and is rotatably connected to the body 10 via the head unit bracket 21, so that it can be folded relative to the body 10. The drive unit 40 may be provided on the head unit bracket 21.

[0103] In one embodiment, the head body 22 is fixedly connected to the head support 21 and rotates relative to the body 10 following the rotation of the head support 21. In another embodiment, the head body 22 is rotatably connected to the head support 21 about a first direction so that its angle can be independently adjusted when the head support 21 rotates relative to the body 10 for folding.

[0104] In some embodiments, the head unit 20 further includes a housing 23, and the air supply device 100 further includes an outer cover 80. The housing 23 covers the outside of the head unit bracket 21 and is used to cover the mounting position 2112, etc. The outer cover 80 is provided on the body 10 and is located at and covers the rotatable connection between the head unit 20 and the body 10.

[0105] The aforementioned air supply device 100 includes a body 10, a head unit 22, a head bracket 21, a shaft bolt, a shaft nut 63, a resistance component 30, a drive component 40, a transmission gear 50, a controller, and a chassis. For ease of understanding, the assembly process of part of the air supply device 100 is briefly described below:

[0106] The two resistance components 30 are inserted into the mounting slots 131 within the mating grooves 13 of the machine body 10 via their self-installation inlets 1311. Next, the mating shaft 211 of the machine head bracket 21 is fitted into the mating groove 13 of the machine body 10, ensuring that the outer end face of the mating shaft 211 is in close contact with the end face of the resistance component 30, generating frictional resistance to slow the rotation of the machine head. Simultaneously, the first through hole 2111 on the machine head bracket 21 is aligned with the second through hole 132 on the machine body 10 and the third through hole 31 on the resistance component 30. Then, the shaft nut 63 is inserted into the nut groove 212 in the machine head bracket 21. The shaft bolt passes through the first through hole 2111, the second through hole 132, and the third through hole 31 and is fitted with the shaft nut 63, thus completing the rotational and fixed connection between the machine head bracket 21 and the machine body 10. Next, assemble the motor shaft of the drive component 40 with the transmission gear 50, and assemble the drive component 40 to the mounting position 2112 of the head bracket 21 to ensure that the transmission gear 50 meshes with the mating gear 11 and that its end contacts the rotating shaft support of the head bracket 21 to prevent the transmission gear 50 from falling off; finally, cover the outer shell 23 and the outer cover 80 of the body 10 on both sides of the head bracket 21.

[0107] The drive unit 40 is fixed at mounting position 2112 on the head bracket 21, and its output shaft 41 is connected to the transmission gear 50. The head body 22 is connected to the head bracket 21, and the head bracket 21 is rotatably connected to the body 10 about a first direction through a rotating shaft bolt and a rotating shaft nut 63. At the same time, the transmission gear 50 meshes with the mating gear 11 located on the body 10. Thus, by activating the drive unit 40, a force is generated between the transmission gear 50 and the mating gear 11, thereby driving the head 20 to rotate about the rotating shaft, thereby realizing the automatic folding function of the head. By precisely controlling the rotation angle of the drive unit 40, folding and storage or air outlet at different angles can be achieved. Therefore, the air supply device 100 has a folded storage state, a stored and unfolded state, and an intermediate air supply state. The following is a brief description of each state:

[0108] Folding and Storage State: The user issues a command via the controller → the drive unit 40 reverses → the transmission gear 50 moves along the mating teeth 11 to rotate → the head unit 20 rotates to a fully folded state (180°) → the drive unit 40 stops rotating and locks → the base is removed to complete storage. Specifically, when the user wants to store the air supply device 100, they can issue a command via the controller. The drive unit 40 receives the relevant information, causing its output shaft 41 to rotate counterclockwise, driving the transmission gear 50 to rotate counterclockwise. Since the transmission gear 50 meshes with the mating teeth 11 on the body 10, the transmission gear 50 moves along the mating teeth 11 to rotate around the first direction. When the transmission gear 50 moves to the end of the mating teeth 11, i.e., at 180°, the drive unit 40 automatically stops rotating, and the head unit 20 of the air supply device 100 automatically folds. The drive unit 40 locks against the resistance generated by the mating resistance member 30, keeping the head unit 20 at the set angle. The base is then removed to complete storage.

[0109] Folding / Unfolding State: The user issues a command through the controller → the drive unit 40 rotates forward → the transmission gear 50 moves along the mating gear 11 to form rotation → the machine head 20 rotates to the fully unfolded state (0°) → the drive unit 40 stops rotating and locks.

[0110] Intermediate air supply state: The user issues a command via the controller → the drive unit 40 rotates clockwise or counterclockwise → the transmission gear 50 moves along the mating gear 11 to form rotation → the head unit 20 moves from the original angle to the target angle (adjustable from 0° to 180°) → the drive unit 40 stops rotating and locks. Specifically, when the user wants the air supply device 100 to supply air at a specific angle, they can set the angle and issue a command via the controller. The drive unit 40 receives the relevant information and, based on the relationship between its original angle and the target angle, causes its output shaft 41 to rotate clockwise or counterclockwise accordingly, driving the transmission gear 50 to rotate clockwise or counterclockwise until the target angle is reached. The drive unit 40 automatically stops rotating, and the head unit 20 of the air supply device 100 is adjusted to the angle required by the user. The drive unit 40 locks against the resistance generated by the mating resistance member 30, keeping the head unit 22 at the set angle for air supply.

[0111] Thus, the air supply device 100 has the following advantages: 1. Improved product storage capacity: Since the head 20 can be automatically folded to a smaller angle under the drive of the drive component 40, when the air supply device 100 is not in use, the user can easily fold and store it, greatly reducing the space occupied by the product. Compared to traditional circulating fans, the air supply device 100 is more compact when stored, making it easier to store and carry, especially suitable for use in home environments with limited space, thus improving the product's practicality and market competitiveness; 2. Automated folding and unfolding: The air supply device 100 can automatically fold and unfold. When it needs to be folded for storage or unfolded for use, the controller sends a signal, the drive unit 40 receives the signal and starts accordingly, and drives through the transmission gear 50 to realize the automatic downward folding function and upward unfolding function of the head, reducing manual operation and improving the product's intelligence level; 3. Realizing folding angle control and adjustment: The air supply device 100 can also realize automatic folding function at a wide range of different angles through programmed motor control. It can realize stepless folding within 0-180° and arbitrary angle suspension for air outlet. Users can adjust it to a suitable angle according to different usage scenarios such as bedside, floor blowing, sofa side, or standing, to meet personalized needs such as close-range blowing, directional air supply, or whole-body air supply. Meanwhile, the product is equipped with an intelligent control system that supports operation via controller, remote control or mobile application. Users can preset folding angle or folding mode to achieve automated control and improve ease of use and comfort.

[0112] In short, a drive unit 40 is fixed on the head bracket 21 of the air supply device 100. The output shaft 41 of the drive unit 40 is connected to a transmission gear 50. A mating gear 11 is provided inside the body 10, and the transmission gear 50 meshes with the mating gear 11. By programmably controlling the output torque of the drive unit 40, the head can be infinitely folded from 0° to 180° and hovered at any angle, achieving automatic control. This solves the problems of single folding angle and low automation of the head, enabling multi-angle hovering air supply and one-button storage.

[0113] 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.

[0114] 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. An air supply device, characterized in that, The air supply device includes: Fuselage (10); The head (20) is connected to the body (10) and is configured to fold relative to the body (10); A resistance element (30), disposed on the fuselage (10) and / or the nose (20), and configured to provide a holding resistance capable of preventing the nose (20) from folding relative to the fuselage (10); and The drive unit (40) is located on the mounting target and connected to the transmission target, and is configured to drive the head (20) to fold over the holding resistance.

2. The air supply device according to claim 1, characterized in that, The drive unit (40) is a stepper motor or a servo motor; the air supply device also includes a controller, which is communicatively connected to the drive unit (40).

3. The air supply device according to claim 1, characterized in that, The head (20) is rotatably connected to the body (10) about a first direction and folds relative to the body (10) by rotating about the first direction, and the first direction intersects the height direction of the air supply device.

4. The air supply device according to claim 3, characterized in that, The transmission target has a mating tooth (11), which is arranged around the first direction; The air supply device also includes a transmission gear (50), which is connected to the drive member (40) and meshes with the mating gear (11).

5. The air supply device according to claim 4, wherein The circumferential arc of the mating tooth (11) around the first direction is 2π / 3 to 4π / 3.

6. The air supply device according to claim 4, wherein The installation target has a mating shaft (211), the transmission target has a mating groove (13), and the mating shaft (211) mates with the mating groove (13); The machine head (20) and the machine body (10) are rotatably connected about the first direction by the mating shaft (211) and the mating groove (13); the mating teeth (11) are provided in the groove wall of the mating groove (13) surrounding the mating shaft (211).

7. The air supply device according to claim 6, wherein The mating shaft (211) has a mounting position (2112) on the side opposite to the mating groove (13), and the mating shaft (211) also has a gear receiving groove (2113) communicating with the mounting position (2112); The drive member (40) is located at the mounting position (2112), and the transmission gear (50) is located in the gear receiving groove (2113). The groove wall of the gear receiving groove (2113) has a clearance notch (2114), and the transmission gear (50) meshes with the mating tooth (11) through the clearance notch (2114).

8. The air supply device according to claim 7, characterized in that, The mating shaft (211) also has a gear support (2115), which is located in the gear receiving groove (2113) and at one end of the transmission gear (50) in the axial direction, and abuts against the transmission gear (50).

9. The air supply device according to claim 6, wherein The mating shaft (211) has a first through hole (2111), the mating groove (13) has a second through hole (132), and the resistance member (30) has a third through hole (31); the first through hole (2111), the second through hole (132), and the third through hole (31) are coaxially arranged and their axial directions are parallel to the first direction; The air supply device also includes a rotating shaft structure (61), which passes through the first through hole (2111), the second through hole (132) and the third through hole (31) to rotatably connect the mating rotating shaft (211) and the mating rotating groove (13).

10. The air supply device according to claim 1, wherein The resistance element (30) is disposed on one of the body (10) and the head (20) and is in frictional contact with the other.

11. The air supply device according to any one of claims 1 to 10, characterized by The head (20) is the installation target, and the body (10) is the transmission target.

12. The air supply device according to any one of claims 1 to 10, characterized by The holding resistance can also prevent the nose (20) from unfolding relative to the fuselage (10); The drive unit (40) is also configured to drive the head (20) to unfold over the holding resistance.

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