Head swinging mechanism applied to fan

Abstract

The head swinging mechanism comprises a driving module and a circuit board, the driving module comprises a driving part, a transmission assembly and a support, the transmission assembly is composed of a first gear and a second gear which are meshed with each other, the driving part is fixed through the support, the output end of the driving part is connected with the first gear, and the support is provided with a first wiring channel; the first gear is provided with a first wiring channel, a limiting hole is formed in the first gear to restrain radial movement of the cable, the second gear is provided with a second wiring channel, the limiting hole, the first wiring channel and the second wiring channel are coaxially arranged, and the cable of the circuit board and the driving part sequentially penetrates through the limiting hole, the first wiring channel and the second wiring channel to be connected with an external structure. The technical problem that in the prior art, a cable of a fan head swinging mechanism is prone to abrasion is solved, the stability of the fan head swinging mechanism is improved, and the service life of the fan head swinging mechanism is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fan swing head, and particularly relates to a swing head mechanism applied to a fan. BACKGROUND

[0002] In the field of fan design and manufacturing, a swing head mechanism is a core component for realizing the wide-angle air supply function of a fan, and the stability and reliability of the performance of the swing head mechanism directly affect the overall use effect of the fan. In order to realize the left-right swing of the head of a traditional fan, a motor-driven gear set or a connecting rod mechanism is generally used as a transmission mode. Through the rotating power of the motor, the swing head mechanism drives the fan head to swing periodically through the transmission of the gear set or the connecting rod, thereby effectively expanding the air supply range and enhancing the use comfort of the user. However, the swing head mechanism of the traditional fan lacks a structure for limiting the swing of the cable, so that the connecting cable of the motor and the control board inevitably rubs against the internal structure of the mechanism during frequent rotation. The continuous friction causes the outer skin of the cable to gradually break, and in severe cases, the internal wires may even be broken, directly affecting the normal operation of the equipment. CONTENT OF THE UTILITY MODEL

[0003] The application provides a swing head mechanism applied to a fan to solve the technical problem of cable wear in the swing head mechanism of the fan in the prior art.

[0004] The swing head mechanism applied to the fan provided by the application comprises:

[0005] A driving module, a transmission assembly and a bracket, the transmission assembly comprises first and second gears that are engaged with each other, the driving module is fixed through the bracket and connected with the first gear at the output end, the bracket is provided with a first cable routing channel, a limiting hole for restricting the radial movement of the cable is arranged in the first cable routing channel, the second gear is provided with a second cable routing channel, and the limiting hole, the first cable routing channel and the second cable routing channel are coaxially arranged;

[0006] A circuit board, the circuit board and the driving module are both provided with at least one cable, and the cable sequentially passes through the limiting hole, the first cable routing channel and the second cable routing channel to be connected with an external structure.

[0007] In a possible implementation, the diameter of the limiting hole is smaller than the diameter of the second cable routing channel.

[0008] In a possible implementation, a plurality of ribs are arranged in the first cable routing channel, and the ribs enclose the limiting hole.

[0009] In a possible implementation, the bearing assembly further comprises a bearing fixing seat, and a first bearing, a second bearing and a bearing pressing plate arranged in the bearing fixing seat, the second bearing is in abutment with the second gear and the bearing pressing plate respectively, and the first bearing is arranged at one end of the bearing fixing seat away from the second bearing.

[0010] In a possible implementation, the bearing fixing seat is provided with a through hole penetrating through the bearing fixing seat along the axial direction, and the inner wall of the through hole extends radially to form a first boss and a second boss, and the first bearing and the second bearing are arranged in the first boss and the second boss respectively.

[0011] In a possible implementation, the mounting bracket further comprises a connecting portion formed at one end of the mounting bracket, the connecting portion is inserted into the through hole from one end of the bearing fixing seat to be connected with the second gear.

[0012] In a possible implementation, the connecting portion sequentially passes through the first bearing, the bearing pressing plate and the second bearing, and the outer wall of the connecting portion is in abutment with the first bearing and the second bearing.

[0013] In a possible implementation, the mounting bracket is provided with a third wire channel penetrating through the connecting portion, and the cable is arranged in the third wire channel.

[0014] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0015] When the driving member works, the output end of the driving member drives the first gear to rotate, and the first gear drives the second gear to rotate through the meshing relationship. Since the cable sequentially passes through the limiting hole, the first wire channel and the second wire channel, and these channels are coaxially arranged, the cable can maintain a stable arrangement state during the swing process, and will not be additionally pulled or bent due to the rotation of the second gear. The design of the limiting hole further restricts the radial movement of the cable, preventing the cable from rubbing against the surrounding structure (such as the hole wall of the first wire channel and the second wire channel), thereby effectively reducing the wear of the cable. Through the coaxial arrangement of the wire channels, the winding and pulling of the cable during the swing process are effectively avoided, and the wear of the cable is reduced. The design of the limiting hole restricts the radial movement of the cable, further protects the cable, improves the stability and reliability of the fan swing mechanism, and prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the field, other drawings can also be obtained based on these drawings without any creative effort.

[0018] One or more embodiments are illustrated by way of example in the drawings that are not intended to be limiting of the embodiments. Like references numerals in the drawings denote like elements, unless otherwise specified. The drawings in the figures are not necessarily to scale, with emphasis being placed on illustrating the principles of the embodiments.

[0019] Figure 1 A cross-sectional view of a housing provided by the embodiments of the present application.

[0020] Figure 2 A structural view of a swing mechanism provided by the embodiments of the present application.

[0021] Figure 3 A structural view of a driving module provided by the embodiments of the present application.

[0022] Figure 4 Another angle of a structural view of a driving module provided by the embodiments of the present application.

[0023] Figure 5 A cross-sectional structural view of a bearing assembly provided by the embodiments of the present application.

[0024] Figure 6 A perspective view of a swing mechanism applied to a fan provided by the embodiments of the present application.

[0025] Legend of reference signs:

[0026] 1, housing; 101, first housing; 102, second housing; 103, upper cover; 104, mounting cavity;

[0027] 2, driving module; 201, driving piece; 202, transmission assembly; 2021, first gear; 2022, second gear; 2022a, second cable passage; 2022b, positioning column; 203, bracket; 2031, first cable passage; 2032, limiting hole; 2033, ridge;

[0028] 3, circuit board;

[0029] 4, cable;

[0030] 5, bearing assembly; 501, bearing fixing seat; 5011, through hole; 5011a, first boss; 5011b, second boss; 502, first bearing; 503, second bearing; 504, bearing pressing plate;

[0031] 6, mounting bracket; 601, connecting portion; 602, third wire channel. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0033] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of particular examples in the following description will be described with reference to specific arrangements. It will be clear, however, that this is simply for the purpose of providing examples and is not meant to limit the present application in any way. Furthermore, the present application can be practiced with the elements and / or settings in different examples. The use of the same numbers in different illustrations indicates the same or similar elements.

[0034] For the purpose of simplicity, spatial relative terms in the description are used to describe one element's or feature's relative position or movement with respect to another element or feature as illustrated in the figures. The spatial relative terms are, for example, "inner", "outer", "inward", "outward", "lower", "below", "upper", "above", "front", "back", and the like. The spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over or rotated, or the device is mirrored, the directional indications are reversed. Accordingly, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "over" the other element or feature. Similarly, if the device in the figures is turned over, elements described as "above" or "over" other elements or features would then be oriented "below" or "under" the other elements or features. The spatial relative terms in the description are intended to encompass all such orientations and locations.

[0035] To solve the technical problem of cable wear in the fan swing mechanism in the related art, the present application provides a swing mechanism applied to a fan, which prevents the cable from rubbing against the surrounding structure (such as the hole wall of the first wire channel and the second wire channel), thereby effectively reducing the wear of the cable.

[0036] Please refer to Figures 1 to 4 The swing mechanism applied to the fan provided by the present application comprises:

[0037] a housing 1, an axially extending mounting cavity 104 is formed inside the housing 1;

[0038] a driving module 2, provided in the mounting cavity 104, comprising a driving member 201, a transmission assembly 202 and a bracket 203, the transmission assembly 202 comprising a first gear 2021 and a second gear 2022 which are engaged with each other, the driving member 201 is fixed by the bracket 203 and the output end of the driving member 201 is connected with the first gear 2021, the bracket 203 is provided with a first wire channel 2031, a limiting hole 2032 for restricting the radial movement of the cable is provided in the first wire channel 2031, the second gear 2022 is provided with a second wire channel 2022a, the limiting hole 2032, the first wire channel 2031 and the second wire channel 2022a are coaxially arranged;

[0039] a circuit board 3, provided in the mounting cavity 104, the circuit board 3 and the driving member 201 are both provided with at least one cable 4, the cable 4 passes through the limiting hole 2032, the first wire channel 2031 and the second wire channel 2022a in sequence to be connected with external structures.

[0040] In the above technical solution, the housing 1 is internally formed with an axially extending mounting cavity 104, which provides installation space for the driving module 2 and the circuit board 3. The driving module 2 comprises a driving member 201, a transmission assembly 202 (a first gear 2021 and a second gear 2022) and a bracket 203. The driving member 201 is fixed by the bracket 203, and the output end of the driving member 201 is connected with the first gear 2021 to realize power transmission. The bracket 203 is provided with a first wire channel 2031 and a limiting hole 2032 for restricting the radial movement of the cable 4. The second gear 2022 is provided with a second wire channel 2022a, and the three channels are coaxially arranged to ensure that the cable 4 does not rub against the internal structure (such as the inner wall of the first wire channel 2031 and the second wire channel 2022a) during fan swing. The cable 4 of the circuit board 3 and the driving member 201 passes through the limiting hole 2032, the first wire channel 2031 and the second wire channel 2022a in sequence, and the extension direction of the cable 4 coincides with the rotation axis of the second gear 2022, which ensures the stable arrangement of the cable 4. Through the coaxial arrangement of the wire channels, the winding and pulling of the cable during the swing process are effectively avoided, and the wear of the cable is reduced. The design of the limiting hole 2032 restricts the radial movement of the cable 4, further protects the cable 4, improves the stability and reliability of the fan swing mechanism, and prolongs the service life.

[0041] In particular, the cable 4 of the circuit board 3 and the driving member 201 is electrically connected with an integrated motor (not shown in the drawings) in the fan after passing through the housing 1. In a specific embodiment, the end of the cable 4 passing through the housing 1 is provided with a connector or a terminal for electrical connection with the integrated motor in the fan. The integrated motor is provided with a corresponding interface or terminal post for receiving the connection of the cable 4 of the circuit board 3 and the driving member 201. By connecting the connector or terminal of the cable 4 with the interface or terminal post of the integrated motor, the electrical signal transmission and power supply between the circuit board 3 and the driving member 201 and the integrated motor are achieved.

[0042] In addition, in the present application, the circuit board 3 includes a power board 301 and a control board 302, the power board 301 is connected with the control board 302 through a cable, and the cable 4 provided on the control board 302 and the cable 4 on the driving member 201 are arranged in the limiting hole 2032, the first cable passage 2031 and the second cable passage 2022a, and are electrically connected with the integrated motor in the fan after passing through the housing 1.

[0043] It should be noted that the diameter of the limiting hole 2032 is smaller than the diameter of the second cable passage 2022a. In the present application, the limiting hole 2032 is designed to limit the movement of the cable 4 in the radial direction (i.e. perpendicular to the extension direction of the cable 4). The limiting hole 2032 is located in the first cable passage 2031 of the bracket 203, and the cable 4 needs to pass through the limiting hole 2032, the first cable passage 2031 and the second cable passage 2022a on the second gear 2022 in sequence. Since the diameter of the limiting hole 2032 is smaller than the diameter of the second cable passage 2022a, when the cable 4 passes through the limiting hole 2032, its radial movement range is effectively limited, thereby preventing the cable 4 from rubbing against the surrounding structure (such as the wall surface of the first cable passage 2031 or the second cable passage 2022a) due to radial shaking during the swing process, which can effectively reduce the wear of the cable 4 and prolong the service life of the cable 4.

[0044] Please refer to Figure 3 and Figure 4 , in order to realize the effective use of space, in a possible embodiment, the first gear 2021 and the second gear 2022 are arranged in the first cable passage 2031. This design can share the cable passage space, reduce the overall volume of the mechanism, and make the fan swing mechanism more compact and beautiful.

[0045] In a specific embodiment, a plurality of ribs 2033 are arranged in the first cable routing channel 2031, and the ribs 2033 enclose a limiting hole 2032. In this application, the first cable routing channel 2031 is one of the key paths for the arrangement of the cable 4. In order to more effectively constrain the radial movement of the cable 4 and prevent it from rubbing against the channel wall, a plurality of ribs 2033 are specially designed in the first cable routing channel 2031. These ribs 2033 not only enhance the structural strength of the first cable routing channel 2031, but more importantly, they enclose a limiting hole 2032, which provides a precise radial positioning space for the cable 4. When the cable 4 passes through the first cable routing channel 2031, it will be constrained by the limiting hole 2032 and can only move within a defined radial range. Due to the presence of the ribs 2033, the contact area between the cable 4 and the channel wall is reduced, thereby reducing the possibility of friction. At the same time, the ribs can also guide the cable, making it pass through the channel more smoothly.

[0046] For reference Figure 2 and Figure 5 , this application also includes a bearing assembly 5, which includes a bearing fixing seat 501, a first bearing 502, a second bearing 503, and a bearing pressing plate 504 arranged in the bearing fixing seat 501. The second bearing 503 is in abutment with the second gear 2022 and the bearing pressing plate 504, and the first bearing 502 is arranged at one end of the bearing fixing seat 501 away from the second bearing 503. In this application, when the driving member 201 drives the second gear 2022 to rotate through the first gear 2021, the second bearing 503 bears the main radial and axial forces, ensuring the rotation accuracy and stability of the second gear 2022 and reducing noise and vibration caused by poor rotation.

[0047] Specifically, the bearing fixing seat 501 is provided with a through hole 5011 extending through it in the axial direction. The inner wall of the through hole 5011 extends radially to form a first boss 5011a and a second boss 5011b, and the first bearing 502 and the second bearing 503 are arranged in the first boss 5011a and the second boss 5012b, respectively. The through hole 5011 of the bearing fixing seat 501 extends through it in the axial direction, providing convenience for the installation and removal of the first bearing 502 and the second bearing 503. At the same time, the size and shape of the through hole match the outer diameter of the bearings, ensuring that the first bearing 502 and the second bearing 503 can be stably installed in the through hole 5011. The inner wall of the through hole 5011 extends radially to form a first boss 5011a and a second boss 5011b, which are used to support the first bearing 502 and the second bearing 503, respectively. The design of the bosses enables the bearings to be accurately positioned at the predetermined position during installation, preventing the bearings from shifting or shaking during use.

[0048] Meanwhile, the application also comprises a mounting bracket 6 connected with the fan, one end of the mounting bracket 6 is formed as a connecting part 601, the connecting part 601 is inserted into the through hole 5011 from one end of the bearing fixing seat 501 to be connected with the second gear 2022. In the application, the mounting bracket 6 is connected with the second gear 2022 through the connecting part 601 thereof. When the driving member 201 drives the second gear 2022 to rotate through the first gear 2021, the rotating movement of the second gear 2022 is transmitted to the mounting bracket 6 through the connecting part 601, and then drives the fan or other components to realize the swing movement. The plug-in connection mode makes the mounting and dismounting of the mounting bracket 6 more convenient, and improves the maintenance and replacement efficiency of the fan swing mechanism. It should be noted that the connecting part 601 is provided with a positioning hole (not shown in the drawings), and the second gear 2022 is provided with a positioning column 2022b matched with the positioning hole. The positioning hole on the connecting part 601 and the positioning column 2022b on the second gear 2022 are matched with each other to realize the accurate alignment of the connecting part 601 and the second gear 2022. This alignment mode ensures the stability of the relative position between the connecting part 601 and the second gear 2022, thereby ensuring that the force and movement during the swing of the fan can be accurately and stably transmitted.

[0049] Specifically, the connecting part 601 passes through the first bearing 502, the bearing pressing plate 504 and the second bearing 503 in sequence, and makes the outer wall thereof abut against the first bearing 502 and the second bearing 503. When the driving member 201 drives the second gear 2022 to rotate through the first gear 2021, the rotating movement of the second gear 2022 is transmitted to the mounting bracket 6 through the connecting part 601. Since the connecting part 601 passes through the first bearing 502, the bearing pressing plate 504 and the second bearing 503 in sequence and abuts against these bearing components, the connecting part 601 can stably bear and transmit the force and movement from the second gear 2022. This design ensures the stability and reliability during the swing of the fan

[0050] In addition, it should be noted that the mounting bracket 6 is provided with a third wire channel 602 penetrating the connecting part 601, and the cable 4 is arranged in the third wire channel 602. The design of the third wire channel 602 further avoids the random placement and winding of the cable 4, effectively reduces the friction and wear between the cable 4 and other structures in the shell 1, and prolongs the service life of the cable 4.

[0051] Particularly, in one possible implementation, the shell 1 comprises a first shell 101, a second shell 102 and an upper cover 103, the first shell 101 is detachably connected with the second shell 102 to form a mounting cavity 104, the upper cover 103 is arranged at one end of the mounting cavity 104 and is provided with an area through which the connecting part 601 of the mounting bracket 6 passes. The first shell 101 and the second shell 102 are detachably connected, which is helpful for the installation and maintenance of internal components. Specifically, during assembly, the first bearing 502 is first installed into the bearing fixing seat 501, then the bearing pressing plate 504 is used for fixing, then the second bearing 503 is installed, then the upper cover 103 is clamped with the bearing fixing seat 501. Then the connecting part 601 of the mounting bracket 6 is inserted into the bearing fixing seat 501, and the connecting part 601 is fixed with the second gear 2022 by using a screw or the like fastener, then the bracket 203 is clamped on the second shell 102 for fixing, and the first gear 2021 is tightly fitted on the output shaft of the driving member 201 to engage with the second gear 2022, and the driving member 201 is fixed on the bracket 203 by using a screw or the like fastener. Finally, the second shell 102 is clamped with the first shell 101 and is fixed by using a screw or the like fastener, and the assembly is completed.

[0052] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0055] In the present application, unless specifically defined otherwise, the terms "mount", "connected", "connecting", "fixed", "linking", and the like should be construed broadly and can include various forms of connections, such as connection and detachable connection, or integral connection; mechanical connection, or electrical connection; direct connection, or indirect connection via an intermediate medium; internal communication between two elements, or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

[0056] In the present application, unless specifically defined otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Under", "below" and "under" of a first feature to a second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0057] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0058] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, any modifications and variations of the present application within the scope of the claims of the present application and their equivalents are intended to be included in the present application.

[0059] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A yawing mechanism applied to a fan, characterized by, include: The drive module includes a drive component, a transmission assembly, and a bracket. The transmission assembly includes a first gear and a second gear that mesh with each other. The drive component is fixed by the bracket and its output end is connected to the first gear. The bracket is provided with a first wiring channel. The first wiring channel is provided with a limiting hole for constraining the radial movement of the cable. The second gear is provided with a second wiring channel. The limiting hole, the first wiring channel, and the second wiring channel are coaxially arranged. The circuit board and the driving component are each provided with at least one cable, which passes through the limiting hole, the first wiring channel and the second wiring channel in sequence to connect with the external structure.

2. The yawing mechanism for a fan according to claim 1, characterized by, The diameter of the limiting hole is smaller than the diameter of the second wiring channel.

3. The yawing mechanism for a fan according to claim 1, characterized by, The first wiring channel is provided with several ribs, which form the limiting hole.

4. The yawing mechanism for a fan according to claim 1, characterized by, It also includes a bearing assembly, which includes a bearing housing and a first bearing, a second bearing and a bearing pressure plate disposed within the bearing housing. The second bearing abuts against the second gear and the bearing pressure plate respectively, and the first bearing is disposed at the end of the bearing housing away from the second bearing.

5. The yawing mechanism for a fan according to claim 4, characterized by The bearing mounting base is provided with a through hole extending through it along its axial direction. The inner wall of the through hole extends radially to form a first boss and a second boss. The first bearing and the second bearing are respectively disposed on the first boss and the second boss.

6. The yawing mechanism for a fan according to claim 5, characterized by It also includes a mounting bracket for connecting to a fan, one end of which is formed as a connecting portion that is inserted into the through hole from one end of the bearing mounting seat to connect with the second gear.

7. The yawing mechanism for a fan according to claim 6, characterized by The connecting part passes through the first bearing, the bearing pressure plate and the second bearing in sequence, and its outer wall abuts against the first bearing and the second bearing.

8. The yawing mechanism for a fan according to claim 6, characterized by, The mounting bracket is provided with a third cable routing channel that passes through the connection part, and the cable passes through the third cable routing channel.

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