A left and right swing head structure of a fan

Abstract

This application relates to a left-right oscillating structure for a fan, including a drive component, a crank, a swing rod, and a connecting bracket fixedly connected to the fan housing. A crank is mounted on the output shaft of the drive component; one end of the swing rod is hinged to the crank, and the other end is hinged to the connecting bracket. The drive component is fixedly mounted on a drive component bracket, and a pressure plate is disposed between the drive component and the connecting bracket, abutting against the drive component. The drive component drives the connecting bracket to oscillate relative to the pressure plate via the crank and the swing rod. Compared to traditional fan oscillating mechanisms using gearboxes or worm gears, this application simplifies the transmission structure, reduces the number of parts, lowers production costs, and improves assembly efficiency. It also avoids mechanical noise generated by gear transmission, enhancing the user experience, and reduces problems such as increased transmission clearance, shaking, abnormal noise, and jamming caused by wear after long-term use, thus improving reliability and durability.

Description

Technical Field

[0001] This application relates to the field of fan oscillation technology, and more particularly to a fan oscillation structure. Background Technology

[0002] Fans are common household appliances used for air circulation and cooling. To achieve wide-range airflow, most fans have a left-right oscillation function. Traditional fan oscillation mechanisms typically use gearboxes or worm gear structures, driven by the rotation of a motor, which transmits the rotation through multiple gears to ultimately convert it into the reciprocating oscillation of the fan head.

[0003] This type of traditional structure has many drawbacks: First, its internal gear meshing transmission structure is complex and has a large number of parts, resulting in high production costs and low assembly efficiency; second, gear transmission is prone to generating obvious mechanical noise during operation, affecting the user experience; third, the gearbox structure is prone to wear after long-term use, resulting in increased transmission clearance, which in turn produces shaking and abnormal noise, and may even cause jamming, resulting in insufficient reliability and durability.

[0004] The purpose of this application is to overcome the above-mentioned defects of the prior art and provide a novel fan left and right oscillation structure. Utility Model Content

[0005] The purpose of this application is to provide a left-right oscillation structure for a fan to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A fan's left-right oscillation structure includes a drive component, a crank, an oscillation rod, and a connecting bracket fixedly connected to the fan housing.

[0008] The crank is sleeved on the output shaft of the drive unit, and one end of the swing rod is hinged to the crank and the other end is hinged to the connecting bracket.

[0009] The driving component is fixedly installed on a driving component bracket, and a pressure plate is disposed between the driving component and the connecting bracket and abuts against the driving component. The driving component drives the connecting bracket to swing relative to the pressure plate through the crank and the swing rod.

[0010] Furthermore, the connecting bracket is provided with a first column, and the pressure plate is provided with a second column. The first column is rotatably sleeved on the outer periphery of the second column through its inner hole.

[0011] Furthermore, it also includes a connector, one end of which is fitted with a rotating sleeve, and the fan housing is fitted around the outer periphery of the rotating sleeve and can rotate around the rotating sleeve.

[0012] Furthermore, the drive component is mounted on the connector via a drive component bracket, and the mounting position is close to the rotating sleeve.

[0013] Furthermore, the connector has a positioning post at one end near the drive component bracket, and the drive component bracket has a positioning hole that matches the positioning post.

[0014] Furthermore, the fan housing includes a detachably connected front shell and a rear shell, both of which are detachably connected to the connecting bracket.

[0015] Furthermore, the front shell is provided with a connecting part, which is sleeved on the outer periphery of the rotating sleeve and can rotate around it.

[0016] Furthermore, the drive component bracket forms an installation space for accommodating the drive component;

[0017] The pressure plate, driving component, and driving component bracket are stacked in sequence and fixed together by fasteners.

[0018] The technical solutions provided in this application have the following advantages compared with the prior art:

[0019] The fan left and right oscillation structure provided in this application embodiment has a driving component that drives the output shaft to rotate the crank that is sleeved and installed. The rotation of the crank is converted into the oscillation of the oscillation rod by hinge to one end of the oscillation rod. The other end of the oscillation rod is hinged to the connecting bracket that is fixedly connected to the fan housing, thereby driving the connecting bracket to oscillate relative to the pressure plate, so as to realize the left and right oscillation of the fan.

[0020] Compared to traditional fan oscillating mechanisms that use gearboxes or worm gears, this application simplifies the transmission structure, reduces the number of parts, lowers production costs, and improves assembly efficiency. It also avoids mechanical noise generated by gear transmission, enhances the user experience, and reduces problems such as increased transmission clearance, shaking, abnormal noise, and jamming caused by wear after long-term use, thus improving reliability and durability. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0024] Figure 1 This is a partial structural diagram of the left and right oscillation structure of the fan provided in an embodiment of this application.

[0025] Figure 2 This is a partially exploded structural diagram of the left and right oscillating structure of the fan provided in an embodiment of this application.

[0026] Figure 3 This is a cross-sectional schematic diagram of the left and right oscillating structure of the fan provided in an embodiment of this application.

[0027] Figure 4 This is an exploded view of the connector and drive component bracket provided in an embodiment of this application.

[0028] Figure 5 A perspective view of the left and right oscillating structure of the fan provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Drive component; 2. Crank; 3. Swing rod; 4. Connecting bracket; 41. First column; 5. Drive component bracket; 51. Positioning hole; 52. Installation space; 6. Pressure plate; 61. Second column; 7. Fan housing; 71. Front housing; 711. Connecting part; 72. Rear housing; 8. Connector; 81. Positioning pin; 9. Rotary sleeve. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0033] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0034] Figures 1 to 5 The left and right oscillating structure of a fan provided in this application embodiment includes a drive component 1, a crank 2, an oscillating rod 3, and a connecting bracket 4 fixedly connected to the fan housing 7.

[0035] A crank 2 is mounted on the output shaft of the drive unit 1. One end of the swing rod 3 is hinged to the crank 2, and the other end is hinged to the connecting bracket 4.

[0036] The driving component 1 is fixedly installed on a driving component bracket 5. A pressure plate 6 is disposed between the driving component 1 and the connecting bracket 4 and abuts against the driving component 1. The driving component 1 drives the connecting bracket 4 to swing relative to the pressure plate 6 through the crank 2 and the swing rod 3.

[0037] In the above technical solution, the driving component 1 is the power source of the entire oscillating head structure. When the driving component 1 is started, its output shaft begins to rotate, providing power for subsequent transmission.

[0038] Using a drive unit as the power source, the speed and direction of rotation can be precisely controlled as needed, thereby achieving adjustable fan oscillation speed and direction to meet different user needs.

[0039] The crank 2 is mounted on the output shaft of the drive component 1 and rotates synchronously with the rotation of the output shaft, converting the rotational motion of the drive component 1 into its own circular motion and transmitting the power to the swing arm 3.

[0040] The crank 2 is simple and reliable in design, effectively converting and transmitting the rotational power of the drive component 1, and is one of the key transmission components for realizing the oscillating head motion. Its compact structure and small footprint facilitate the miniaturization design of the entire oscillating head structure.

[0041] One end of the swing rod 3 is hinged to the crank 2, and the other end is hinged to the connecting bracket 4. When the crank 2 makes a circular motion, the swing rod 3 swings back and forth under the drive of the crank 2, and transmits this swinging motion to the connecting bracket 4.

[0042] The swing arm 3 serves to connect and transmit motion. Through its hinged connection with the crank 2 and the connecting bracket 4, it enables flexible transmission of motion and can convert the circular motion of the crank 2 into the left and right swing of the connecting bracket 4, so that the fan head (not shown in the attached figure) can swing at a predetermined angle.

[0043] The connecting bracket 4 is fixedly connected to the fan housing 7. When the swing rod 3 transmits the reciprocating swing motion to the connecting bracket 4, the connecting bracket 4 swings left and right relative to the pressure plate 6, thereby driving the entire fan housing 7 and the head to swing together.

[0044] The connecting bracket 4 acts as a bridge connecting the fan housing 7 and the oscillation mechanism, ensuring that the fan head can oscillate stably with the movement of the oscillation mechanism. Its fixed connection with the fan housing 7 ensures the synchronization and accuracy of the oscillation, improving the reliability of the fan head.

[0045] The drive component 1 is fixedly installed on the drive component bracket 5, which provides a stable installation platform for the drive component 1 and ensures that the drive component 1 will not shake or shift during operation.

[0046] The design of the drive component bracket 5 enhances the stability and rigidity of the entire oscillating head structure, enabling it to withstand the vibrations and forces generated during the operation of the drive component 1, thus ensuring the normal operation of the drive component 1. At the same time, the well-designed bracket also facilitates the installation, disassembly, and maintenance of the drive component.

[0047] The pressure plate 6 is positioned between the driving component 1 and the connecting bracket 4 and abuts against the driving component 1. The connecting bracket 4 swings relative to the pressure plate 6. The pressure plate 6 provides a stable support surface for the swinging of the connecting bracket 4, while restricting the direction of movement of the connecting bracket 4, allowing it to swing only left and right.

[0048] The presence of pressure plate 6 improves the stability and accuracy of the swing of connecting bracket 4, reduces friction and wear during the swing process, and extends the service life of the swing head structure.

[0049] Compared to traditional gearboxes or worm gear structures, this application has fewer parts, a simpler structure, and reduces production costs and assembly difficulty.

[0050] It also avoids the mechanical noise generated by complex structures such as gear transmission, making it quieter during operation and improving the user experience.

[0051] It can also reduce problems such as increased transmission clearance, shaking, abnormal noise and jamming caused by gear wear, improve the reliability and durability of the oscillating head structure and reduce maintenance costs.

[0052] Further, please refer to Figure 1 and Figure 2 In some embodiments of this application, the connecting bracket 4 is provided with a first column 41 and the pressure plate 6 is provided with a second column 61. The first column 41 is rotatably fitted around the outer periphery of the second column 61 through its inner hole.

[0053] When the drive unit 1 is started, the rotational power is converted into reciprocating motion through the crank 2 and the swing rod 3 and transmitted to the connecting bracket 4. The connecting bracket 4 will be subjected to a force that causes it to swing. At this time, since the first column 41 is fitted on the second column 61, the connecting bracket 4 will swing left and right above the pressure plate 6 with the second column 61 as the axis, thereby driving the fan housing 7 and the head fixedly connected to it to achieve left and right oscillation.

[0054] Understandably, the second column 61 provides the axial positioning for the swing of the connecting bracket 4, ensuring that the connecting bracket 4 always moves around a fixed point during the swing process, avoiding offset and shaking during the swing process, making the swing of the fan head more stable and accurate, and improving the uniformity and coverage of the fan air delivery.

[0055] Please see Figure 3 This application also includes a connector 8, one end of which is fitted with a rotating sleeve 9, and the fan housing 7 is fitted on the outer periphery of the rotating sleeve 9 and can rotate around the rotating sleeve 9.

[0056] The design of the rotating sleeve 9 transforms the rotational friction between the fan housing 7 and the connector 8 into rolling or sliding friction within the rotating sleeve 9 itself (if suitable lubrication and low-friction materials are used). Compared to a direct rigid connection, this design significantly reduces friction, minimizes wear between components, extends the fan's lifespan, and also reduces noise generated by friction, improving the user experience.

[0057] Please continue reading. Figure 3 In some embodiments of this application, the drive component 1 is mounted on the connector 8 via the drive component bracket 5, and the mounting position is close to the rotating sleeve 9.

[0058] By mounting the drive unit 1 on the connector 8 and close to the rotating sleeve 9, the limited space inside the fan is fully utilized. This compact layout avoids the drive unit 1 occupying a large space, making the entire fan structure more compact. This helps to reduce the overall size of the fan and improve space utilization, making it especially suitable for small fans or embedded fans with strict size requirements.

[0059] The compact structural design allows for a more rational layout of the fan's various components, facilitating overall design and integration. Designers can more flexibly arrange the positions of other components, such as circuit boards and control modules, resulting in a more organized internal structure that improves the overall aesthetics and manufacturability of the product.

[0060] Additionally, please see Figure 4 The connector 8 is provided with a positioning post 81 at one end near the drive component bracket 5, and the drive component bracket 5 is provided with a positioning hole 51 that is adapted to the positioning post 81.

[0061] The design of the positioning post 81 and the positioning hole 51 provides clear guidance and positioning reference for the installation of the drive component bracket 5. Installers do not need to spend a lot of time and effort on repeated adjustments and calibrations. They only need to align the positioning hole 51 with the positioning post 81 and insert it to quickly and accurately complete the initial positioning of the drive component bracket 5, which greatly shortens the installation time and improves production efficiency.

[0062] For non-professionals or on large-scale production lines, this simple positioning method reduces the difficulty and requirements of installation. Even if the skill levels of the installers vary, they can easily complete the installation of the drive bracket 5 with the help of the positioning pin 81 and the positioning hole 51, reducing quality problems caused by improper installation.

[0063] In some embodiments of this application, the fan housing 7 includes a detachably connected front housing 71 and a rear housing 72, both of which are detachably connected to the connecting bracket 4.

[0064] The detachable connection design greatly simplifies the installation process of the oscillating head structure. Installers can assemble it in steps, first handling the installation of the internal structure (such as the drive unit, drive unit bracket, pressure plate, etc.), and then installing the front shell 71 and rear shell 72 separately, avoiding errors and troubles that may occur from assembling a complex structure all at once. Moreover, the detachable connection usually uses common connection methods, such as snap-fit ​​connections and screw connections, which are simple and easy to understand to operate, requiring no professional complicated tools and skills, thereby improving installation efficiency and reducing installation costs.

[0065] Meanwhile, the detachable connection facilitates maintenance. When the oscillating head structure malfunctions or requires cleaning or repair, the detachable front shell 71 and rear shell 72 make disassembly easy. Maintenance personnel can quickly remove the front shell 71 and rear shell 72 from the connecting bracket 4 to directly inspect and repair the internal components without damaging the overall structure of the oscillating head. This not only saves maintenance time but also reduces potential damage to the oscillating head structure caused by difficult disassembly, thus lowering maintenance costs.

[0066] Furthermore, it facilitates component replacement. If a component in the oscillating head structure is damaged, simply remove the damaged component and replace it with a new one. The detachable connection method makes component replacement simple and quick, eliminating the need for extensive disassembly and replacement of the entire oscillating head structure, thus improving its maintainability and lifespan.

[0067] In particular, please see Figure 3 and Figure 5 The front shell 71 is provided with a connecting part 711, which is sleeved on the outer periphery of the rotating sleeve 9 and can rotate around it.

[0068] Furthermore, the drive component bracket 5 forms an installation space 52 for accommodating the drive component 1;

[0069] The pressure plate 6, the driving component 1, and the driving component bracket 5 are stacked in sequence and connected and fixed by fasteners (not shown in the attached drawings).

[0070] The installation space of the drive component bracket 5 provides clear positioning and guidance for the installation of the drive component 1, allowing installers to quickly and accurately place the drive component 1 into the installation space 52. Then, the pressure plates 6 are placed in sequence and connected and fixed with fasteners. The entire installation process is simple and clear, requiring no complicated operations or adjustments, greatly improving installation efficiency and reducing installation difficulty and error rate.

[0071] When the drive component 1 malfunctions or requires maintenance, simply loosen the fasteners and remove the pressure plate 6 to easily remove the drive component 1 from the installation space 52. This detachable, stacked structure makes maintenance work more convenient and faster, reducing maintenance time and costs. It also facilitates cleaning and inspection of the drive component bracket 5 and the pressure plate 6, ensuring the normal operation of the entire oscillating head structure.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0073] 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", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0074] 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 one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0075] 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 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0076] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0078] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0079] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A left-right oscillation structure for a fan, characterized in that, Includes drive components, crank, oscillating arm, and connecting bracket that is fixedly connected to the fan housing; The crank is sleeved on the output shaft of the drive unit, and one end of the swing rod is hinged to the crank and the other end is hinged to the connecting bracket. The driving component is fixedly installed on a driving component bracket, and a pressure plate is disposed between the driving component and the connecting bracket and abuts against the driving component. The driving component drives the connecting bracket to swing relative to the pressure plate through the crank and the swing rod.

2. The left and right oscillating structure of the fan according to claim 1, characterized in that, The connecting bracket is provided with a first column, and the pressure plate is provided with a second column. The first column is rotatably fitted onto the outer periphery of the second column through its inner hole.

3. The left and right oscillating structure of the fan according to claim 1, characterized in that, It also includes a connector, one end of which is fitted with a rotating sleeve, and the fan housing is fitted around the rotating sleeve and can rotate around the rotating sleeve.

4. The left and right oscillating structure of the fan according to claim 3, characterized in that, The drive component is mounted on the connector via a drive component bracket, and the mounting position is close to the rotating sleeve.

5. The left and right oscillating structure of the fan according to claim 3, characterized in that, The connector has a positioning post at one end near the drive component bracket, and the drive component bracket has a positioning hole that matches the positioning post.

6. The left and right oscillating structure of the fan according to claim 3, characterized in that, The fan housing includes a detachably connected front shell and a rear shell, both of which are detachably connected to the connecting bracket.

7. The left and right oscillating structure of the fan according to claim 6, characterized in that, The front shell is provided with a connecting part, which is sleeved on the outer periphery of the rotating sleeve and can rotate around it.

8. The left and right oscillating structure of the fan according to claim 1, characterized in that, The drive component bracket forms an installation space for accommodating the drive component; The pressure plate, driving component, and driving component bracket are stacked in sequence and fixed together by fasteners.

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