Household appliances

Abstract

To provide a rotating drive mechanism of an air blower, an air blower and a home appliance.SOLUTION: A rotating drive mechanism of an air blower includes a fixed bracket (31), a rotating bracket (32) fit to the fixed bracket (31), and rotatable to the fixed bracket (31), and a drive component (41) arranged at the fixed bracket (31), and used for driving and rotating the rotating bracket (32). By this constitution, a volume of the rotating drive mechanism can be reduced compared with a conventional technology due to the linkage of the fixed bracket (31), the rotating bracket (32) and the drive component (41), and by attaching the rotating drive mechanism to the air blower, the air blower can be seen so as to be further favorably arranged. Also, since a rotation angle of the rotating bracket (32) with respect to the fixed bracket (31) is not limited, a swing angle of the rotating component of the air blower can be expanded.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This application claims priority to the following Chinese patent application filed on April 2, 2020, bearing application number 202020462542.1 and entitled "Household appliance", the following Chinese patent application filed on April 2, 2020, bearing application number 202010254409.1 and entitled "Rotational drive mechanism for blower device and blower device", and the following Chinese patent application filed on April 2, 2020, bearing application number 202010254425.0 and entitled "Blower device", the contents of which are incorporated herein by reference in their entirety.

[0002] The present application relates to the technical field of home appliances, and more particularly to a rotation drive mechanism for a blower, a blower, and a home appliance. [Background technology]

[0003] In related technology, the rotary drive mechanism of a conventional blower uses a crank rocker mechanism to realize the oscillating function of the blower. However, the rotary drive mechanism is large in volume, making the blower look untidy, and the crank rocker mechanism has a dead point, which greatly limits the oscillating angle. Summary of the Invention [Problem to be solved by the invention]

[0004] The present application aims to solve at least one of the technical problems in the prior art or related art. [Means for solving the problem]

[0005] Therefore, the first aspect of the present application provides a rotational drive mechanism for a blower device, which has a small volume, and when the rotational drive mechanism is attached to the blower device, the blower device appears more neat and the swivel angle of the rotating parts of the blower device can also be increased.

[0006] A second aspect of the present application provides a blower device.

[0007] A third aspect of the present application provides a home appliance.

[0008] The rotational drive mechanism of the blower device of the present application includes a fixed bracket, a rotating bracket fitted into the fixed bracket and rotatable relative to the fixed bracket, and a drive part provided on the fixed bracket and used to drive and rotate the rotating bracket.

[0009] The rotary drive mechanism of the blower device of the present application reduces the volume of the rotary drive mechanism compared to conventional technologies by linking the fixed bracket, rotating bracket and drive parts; when the rotary drive mechanism is attached to the blower device, the blower device appears more neat; and because the rotation angle of the rotating bracket relative to the fixed bracket is not limited, the swivel angle of the rotating parts of the blower device can be increased.

[0010] In some examples of the present application, the rotary drive mechanism of the blower device further includes a first transmission part, the rotary bracket is provided with a second transmission part that is rotatably connected to the first transmission part, and the first transmission part is connected to the drive shaft of the drive part.

[0011] In some examples of the present application, the fixing bracket includes a body portion defining a mounting groove, a side wall of the mounting groove having a first through hole, a first transmission component positioned within the mounting groove, and the first transmission component operably coupled to a second transmission component via the first through hole.

[0012] In some examples of the present application, the second transmission part is provided on an inner wall surface of the rotating bracket that faces the fixed bracket.

[0013] In some examples herein, the first transmission part is a gear and the second transmission part is a rack.

[0014] In some examples of the present application, the rotary drive mechanism of the blower further includes a vibration damper, the side wall of the mounting groove has a second through hole, the vibration damper is provided on the fixed bracket and positioned within the mounting groove, and the vibration damper is operably connected to the second transmission component via the second through hole.

[0015] In some examples herein, the rotary drive mechanism of the blower further includes a support bearing, the support bearing being supported between the fixed bracket and the rotary bracket.

[0016] In some examples of the present application, a mounting post is provided on the outer wall surface of the bottom wall of the mounting groove, an inner ring of the support bearing is fitted into the mounting post, and an outer ring of the support bearing is connected to the rotating bracket.

[0017] In some examples of the present application, the rotary drive mechanism of the blower further includes a friction plate, the rotary bracket defines an assembly groove, a third through hole is provided in a bottom wall of the assembly groove, and the friction plate is fitted into the mounting post and abuts against an outer end of the third through hole.

[0018] In some examples of the present application, the rotary drive mechanism of the blower device further includes a retaining ring, a positioning groove is provided on the peripheral wall surface of the mounting post, the retaining ring is provided in the positioning groove, and the retaining ring abuts against the end surface of the friction plate away from the third through hole.

[0019] In some examples of the present application, a first mounting portion is provided on the edge of the open end of the mounting groove, and a second mounting portion is provided on the driving component and connected to the first mounting portion.

[0020] In some examples of the present application, the first mounting portion is provided with a first positioning portion, and the second mounting portion is provided with a second positioning portion connected to the first positioning portion.

[0021] In some examples of the present application, the rotary drive mechanism of the blower further includes a hole assembly, the hole assembly including a hole plate and a magnet, one of the hole plate and the magnet being mounted on the fixed bracket and the other being mounted on the rotating bracket.

[0022] In some examples of the present application, a first position limiting structure is provided on the fixed bracket, and a second position limiting structure is provided on the rotating bracket so as to be position-limitably connected to the first position limiting structure.

[0023] In some examples herein, the central axis of the drive component, the central axis of the fixed bracket, and the central axis of the rotating bracket overlap.

[0024] In some examples herein, the central axis of the fixed bracket and the central axis of the rotating bracket overlap, and the central axis of the drive component and the central axis of the fixed bracket do not overlap.

[0025] In some examples of the present application, the vibration dampers are multiple, the second through holes are multiple, and the multiple vibration dampers and the multiple second through holes have a one-to-one correspondence.

[0026] In some examples herein, the drive component is a drive motor.

[0027] The blower device of the present application includes a first fixed seat, a second fixed seat connected to a head of the blower device, and a rotational drive mechanism having a fixed bracket and a rotating bracket, the fixed bracket being fixedly connected to the first fixed seat and the rotating bracket being fixedly connected to the second fixed seat, the rotating bracket being fitted into the fixed bracket, and the rotational drive mechanism further having a drive assembly, which drives the rotating bracket to rotate it about the pitch axis.

[0028] The blower device of the present application is able to reduce the volume of the rotary drive mechanism compared to conventional technologies by linking the first fixed base, the second fixed base and the rotary drive mechanism, and when the blower device is assembled, it looks more organized, thereby enhancing the market competitiveness of the blower device.

[0029] In some examples herein, the pitch axis is parallel to the horizontal plane.

[0030] In some examples of the present application, the drive assembly includes a drive part and a first transmission part, the first transmission part is connected to the drive part, and the rotating bracket is provided with a second transmission part that meshes with and transmits power to the first transmission part.

[0031] In some examples of the present application, the rotational drive mechanism further includes a support bearing, the fixed bracket includes a main body portion, the main body portion defines a mounting groove, a mounting post is provided on an outer wall surface of a bottom wall of the mounting groove, an inner ring of the support bearing is fitted into the mounting post, and an outer ring of the support bearing is connected to the rotational bracket.

[0032] In some examples herein, the rotating bracket defines a through hole that passes through the rotating bracket in a thickness direction of the rotating bracket and is fitted to the outside of the stationary bracket and the support bearing.

[0033] In some examples of the present application, an annular boss is provided on the inner wall surface of the through hole, and the second transmission component is provided on the inner wall surface of the annular boss.

[0034] In some examples of the present application, a receiving boss is provided on the inner wall surface of the through hole, the receiving boss is located between the annular boss and the support bearing, and the receiving boss abuts against the support bearing.

[0035] In some examples herein, the rotary drive mechanism further includes a retaining ring that is fitted to the mounting post and located at an end of the support bearing remote from the fixed bracket.

[0036] In some examples of the present application, the rotary drive mechanism further includes a bearing inner race receiving part, which is provided on the fixed bracket and located at an end of the support bearing remote from the fixed bracket.

[0037] In some examples of the present application, the rotation drive mechanism further includes a bearing outer ring receiving part, which is provided on the rotation bracket and located at an end of the support bearing remote from the fixed bracket.

[0038] In some examples of the present application, the rotary drive mechanism further includes an annular friction plate, the main body is fitted onto the outside of the friction plate, and the friction plate is fitted onto the outside of the rotary bracket.

[0039] In some examples herein, a sidewall of the mounting groove has a first through hole, and a first transmission component is positioned within the mounting groove, such that the first transmission component is transmissively coupled to a second transmission component through the first through hole.

[0040] In some examples herein, the first transmission part is a gear and the second transmission part is a rack.

[0041] In some examples of the present application, the rotary drive mechanism further includes a vibration damper, wherein a side wall of the mounting groove has a second through hole, the vibration damper is disposed within the mounting groove, and the vibration damper is rotatably connected to the second transmission component through the second through hole.

[0042] In some examples of the present application, the rotational drive mechanism further includes a Hall assembly, the Hall assembly including a Hall plate and a magnet, one of the Hall plate and the magnet being mounted on the fixed bracket and the other being mounted on the rotating bracket.

[0043] In some examples of the present application, the depression angle of the rotating bracket is A and satisfies the relationship -10°≦A≦0°, and the elevation angle of the rotating bracket is B and satisfies the relationship 0°≦B≦90°.

[0044] In some examples of the present application, the blower device further includes a vibration damping mechanism, the vibration damping mechanism being provided on the fixed bracket and pivotally connected to the rotating bracket.

[0045] In some examples of the present application, the rotating bracket has a vibration damping mechanism connecting structure, and the vibration damping mechanism connecting structure is fitted to the vibration damping mechanism.

[0046] In some examples of the present application, the vibration-damping mechanism connection structure has a first wiring channel, and the vibration-damping mechanism has a second wiring channel that communicates with the first wiring channel.

[0047] In view of this, the present application provides a home appliance including a second fixed seat, a first fixed seat, and a rotating structure including a fixed bracket and a rotating bracket, wherein the fixed bracket is connected to the second fixed seat and the rotating bracket is connected to the first fixed seat, and the rotating bracket rotates around the fixed bracket, thereby interlocking the first fixed seat to rotate around the second fixed seat.

[0048] The household appliance of the present application includes a second fixed seat, a first fixed seat, and a rotating structure, the second fixed seat and the first fixed seat are connected by a rotating structure, and the rotating structure can drive the first fixed seat to rotate. The rotating structure includes a fixed bracket and a rotating bracket, the fixed bracket is connected to the second fixed seat, the rotating bracket is connected to the first fixed seat, and the rotating bracket rotates around the fixed bracket, so that the first fixed seat can be taken to rotate around the fixed bracket, i.e., the first fixed seat can be taken to rotate around the second fixed seat, thereby realizing rotation of the first fixed seat and the parts connected thereto in the household appliance.

[0049] The above-mentioned home appliance according to the present application may further have the following additional technical features.

[0050] In the above technical means, the household appliance further includes a first vibration-damping frame connected to the first fixed base, and a second vibration-damping frame connected to the fixed bracket, the second vibration-damping frame being fitted into the first vibration-damping frame, and the first vibration-damping frame rotating around the second vibration-damping frame.

[0051] In this technical means, the household appliance further includes a first vibration-damping frame and a second vibration-damping frame, the first vibration-damping frame is connected to the first fixed seat, and the second vibration-damping frame is connected to the fixed bracket, so that the first fixed seat can be supported by the first vibration-damping frame and the second vibration-damping frame, improving the reliability of the installation of the first fixed seat, and the second vibration-damping frame is fitted into the first vibration-damping frame, and the first vibration-damping frame can rotate around the second vibration-damping frame, so that the first fixed seat can be driven by the rotating bracket to rotate around the second fixed seat.

[0052] In any of the above technical means, a vibration-damping liquid is further provided between the first vibration-damping frame and the second vibration-damping frame.

[0053] In this technical solution, a vibration-damping liquid is provided between the first vibration-damping frame and the second vibration-damping frame, so that there is a vibration-damping force when the first vibration-damping frame rotates around the second vibration-damping frame, and the stability of the home appliance is ensured.

[0054] In any of the above technical means, furthermore, the rotation angle of the first fixed seat is greater than 0° and less than or equal to 200°.

[0055] In this technical solution, the rotation angle of the first fixed seat is greater than 0° and less than or equal to 200°, specifically, the rotation elevation angle of the first fixed seat is greater than 0° and less than 90°, the depression angle of the first fixed seat is greater than 0° and less than 10°, the elevation angle of the first fixed seat is the angle at which the first fixed seat rotates upward from the horizontal position, and the depression angle of the first fixed seat is the angle at which the first fixed seat rotates downward from the horizontal position.

[0056] In any of the above technical means, the household appliance further includes a Hall plate provided on the second fixed base, a magnetic component is further provided on the first fixed base, and the Hall plate is connected to the magnetic component.

[0057] In this technical solution, a hole plate is provided on the second fixed seat, and a magnetic part is provided on the first fixed seat, and the cooperation between the hole plate and the magnetic part can realize the movement of the first fixed seat at any angle, that is, the cooperation between the hole plate and the magnetic part can rotate the first fixed seat at any predetermined angle around the second fixed seat, for example, the first fixed seat may need to rotate around the second fixed seat at any predetermined angle such as 30°, 60°, or 90° from the initial position.

[0058] Specifically, a Hall plate is an element that exhibits the Hall effect.

[0059] In any of the above technical means, a hollow portion is further provided in the second fixed seat, the hollow portion being provided corresponding to the first vibration-damping frame, and the home appliance further includes a connecting wire, which connects from the first fixed seat to the second fixed seat through the hollow portion.

[0060] In this technical solution, a hollow portion is provided in the second fixed base, and the household appliance further includes a connecting wire, which can pass through the hollow portion, i.e., the connecting wire can be connected to the first fixed base and other components thereon through the hollow portion, thereby making the wiring of the household appliance more reliable.

[0061] In any of the above technical means, the rotating structure further includes a driving part connected to the fixed bracket, and a first transmission part connected to the driving part and the rotating bracket, respectively, and the driving part drives and rotates the first transmission part, thereby rotating the rotating bracket in conjunction with the first transmission part.

[0062] In this technical solution, the driving part drives the first transmission part to rotate, so that the first transmission part rotates together with the rotating bracket, and the rotation of the first transmission part rotates the rotating bracket in conjunction, that is, the driving part drives the first transmission part to rotate, and since the first transmission part is connected to the rotating bracket, the first transmission part can move together with the rotating bracket, that is, the rotation of the first transmission part rotates the rotating bracket in conjunction.

[0063] Specifically, the driving components include a motor, which may be a synchronous motor or a stepping motor.

[0064] In any of the above technical means, the fixed bracket further includes a main body portion connected to the driving part and the second fixed seat, and a mounting post connected to the main body portion, the rotating bracket being fitted into the mounting post and the rotating bracket rotating around the mounting post.

[0065] In this technical solution, the fixed bracket includes a main body and a mounting post, the driving part is fixed to the main body, and the rotating structure can be fixed to another device by the main body. The mounting post is provided on the main body, and the rotating bracket is fitted into the mounting post, thereby realizing the rotating bracket to rotate around the mounting post and improving the reliability of the connection between the fixed bracket and the rotating bracket.

[0066] Specifically, the rotating bracket can rotate around the rotation circumference of the fixed bracket, and the rotating bracket can be fitted into the mounting posts of the fixed bracket to reduce the volume of the rotating structure.

[0067] In any of the above technical means, further, the main body has a mounting groove, the first transmission part is provided in the mounting groove, a first through hole is provided in a wall surface of the mounting groove, the first through hole penetrates the wall surface of the mounting groove, and the first transmission part is connected to the rotating bracket via the first through hole.

[0068] In this technical solution, the main body has a mounting groove, and the first transmission part is installed in the mounting groove, thereby avoiding the first transmission part being exposed to the outside and causing the rotating structure to look unorderly; the first transmission part is installed in the mounting groove, and a first through hole is provided on the wall surface of the mounting groove to realize the connection between the first transmission part and the rotating bracket, so that the first transmission part can be connected to the rotating bracket through the first through hole, and the first through hole is a through hole that penetrates the wall surface of the mounting groove.

[0069] Specifically, the rotating bracket is fitted onto the outside of the mounting groove.

[0070] In any of the above technical means, further, the rotating bracket is a connection part that is fitted into the mounting column, and an end of the connection part remote from the driving part includes a connection part connected to the first fixed seat and a second transmission part connected to the connection part, the first transmission part is connected to the second transmission part, and the first transmission part drives and rotates the second transmission part, thereby rotating the connection part in conjunction with the second transmission part.

[0071] In this technical solution, the rotating bracket includes a connecting part and a second transmission part connected thereto, the connecting part is fitted into the mounting column, the second transmission part is connected to the first transmission part, the driving part drives the first transmission part to rotate, and the first transmission part drives the second transmission part to rotate, so that the connecting part connected to the second transmission part rotates around the mounting column, that is, the rotating bracket rotates around the fixed bracket.

[0072] In any of the above technical means, the household appliance further includes a vibration damper connected to the main body and installed in the mounting groove, the vibration damper includes a third rotating part, a second through hole is provided in the wall surface of the mounting groove, the second through hole penetrates the wall surface of the mounting groove, and the third rotating part is connected to the second transmission part via the second through hole.

[0073] In this technical solution, the household appliance further includes a vibration damper, which is attached to the main body and received in the mounting groove, and which includes a third rotating part and is connected to the second transmission part. When the rotating structure operates, the driving part drives the first transmission part to rotate, the first transmission part drives the second transmission part to rotate, and the second transmission part drives the third rotating part to rotate, and the third rotating part can generate a vibration damping effect when rotating, that is, when the third rotating part rotates, it consumes the kinetic energy caused by the rotation of the second transmission part and attenuates the kinetic energy caused by the rotation of the second transmission part, thereby generating a vibration damping effect. The vibration damper ensures the stability of the rotating structure during operation, and when the rotating bracket is forcibly driven by an external force, the vibration damping effect of the vibration damper can ensure the reliability of the rotating structure.

[0074] In any of the above technical means, further, the first transmission part, the second transmission part and the third rotating part all include a gear structure, the first transmission part and the second transmission part mesh with each other through the gear structure to transmit power, and the second transmission part and the third rotating part mesh with each other through the gear structure to transmit power.

[0075] In this technical solution, the first transmission part, the second transmission part and the third rotating part all include a gear structure, the first transmission part and the second transmission part are connected by a gear structure to realize gear transmission and improve the reliability of the connection between them, and the second transmission part and the third rotating part are connected by a gear structure to realize gear transmission and improve the reliability of the connection between them.

[0076] In any of the above technical means, the driving part further includes a rotor and an output shaft connected to the rotor, the output shaft is connected to the first transmission part, and the rotation axis of the rotor, the axis of the mounting column, and the axis that is the center of rotation of the rotating bracket are coaxially arranged, or the rotation axis of the rotor and the axis of the mounting column do not overlap.

[0077] In the technical solution, the driving part includes an output shaft and a rotor, and the rotor rotates to drive the output shaft to rotate, so that the output shaft can drive the first connecting part to rotate. The rotation axis of the rotor, the axis of the mounting column, and the axis around which the rotation bracket rotates are coaxially arranged, thereby reducing the space used by the rotating structure; or the axis of the rotation center of the rotor and the axis of the mounting column do not overlap, that is, the rotating bracket performs eccentric movement with respect to the driving part, so that the rotating structure can be applied to various devices according to actual conditions.

[0078] In any of the above technical means, the household appliance further includes a support bearing provided between the rotating bracket and the mounting column, a position limiting part located at the end of the rotating bracket away from the driving part in the axial direction around which the rotating bracket rotates, a friction plate provided between the rotating bracket and the position limiting part in the axial direction around which the rotating bracket rotates, and a position limiting structure connected to the fixed bracket and limiting the rotation angle of the rotating bracket.

[0079] In this technical solution, the household appliance further includes a support bearing, which is mounted inside the rotating bracket and fitted to the mounting column, and serves to connect the rotating bracket and the mounting column; the household appliance further includes a position limiting part, which is mounted on the rotating bracket and located at the end of the rotating bracket away from the driving part, and the position limiting part is engaged with the fixed bracket, so that the support bearing is limited to the mounting column; the household appliance further includes a friction plate, which is mounted between the rotating bracket and the position limiting part and is made of a wear-resistant and easy-to-cut material, which can realize the control of the gap between the rotating bracket and the fixed bracket and can stabilize the rotating structure, and the friction plate also has a lubricating effect when the rotating bracket rotates. The fixed bracket further includes a position limiting structure, which can realize the position limiting to the rotating bracket and can fix the rotating bracket in a predetermined position after rotation.

[0080] In any of the above technical means, the home appliance further includes any of an electric fan, an air conditioner, and a heater.

[0081] In this technical solution, the home appliance includes any one of an electric fan, an air conditioner, and a heater. Specifically, when the home appliance is an electric fan, the mounting part is a support structure, the rotating part is a head of the electric fan, and in the rotating structure, the axis which is the center of rotation of the rotating bracket is perpendicular to the length direction of the support structure, thereby allowing the head of the electric fan to rotate up and down, that is, to adjust the pitch angle of the head of the electric fan.

[0082] Additional aspects and advantages of the present application will be set forth in the description that follows, or may be learned by practice of the present application.

[0083] The above and / or additional aspects and advantages of the present application will become apparent and easier to understand from the following detailed description of the embodiments with reference to the drawings. [Brief description of the drawings]

[0084] [Figure 1] FIG. 1 is a schematic diagram of a first specific example of a rotation drive mechanism according to an embodiment of the present application. [Diagram 2] FIG. 2 is a side view of a first specific example of a rotation drive mechanism according to an embodiment of the present application. [Diagram 3] FIG. 3 is a cross-sectional view of a first specific example of a rotation drive mechanism according to an embodiment of the present application. [Figure 4] FIG. 4 is an exploded view of a first specific example of a rotation drive mechanism according to an embodiment of the present application. [Diagram 5] FIG. 5 is another angularly exploded view of the first specific example of the rotation drive mechanism according to the embodiment of the present application. [Figure 6] FIG. 6 is a schematic diagram of a second specific example of a rotation drive mechanism according to an embodiment of the present application. [Figure 7] FIG. 7 is an exploded view of a second example of a rotation drive mechanism according to an embodiment of the present application. [Figure 8] FIG. 8 is an exploded view of a first fixed base, a second fixed base, and a rotation drive mechanism of the first embodiment of the blower device according to the embodiment of the present application. [Figure 9] FIG. 9 is a cross-sectional view of a first fixed base, a second fixed base, and a rotation drive mechanism of a first embodiment of a blower according to an embodiment of the present application. [Figure 10] FIG. 10 is a cross-sectional view of the first fixed base, the second fixed base, and the rotary drive mechanism of the first embodiment of the blower device according to the embodiment of the present application, viewed from another angle. [Figure 11] FIG. 11 is a side view of a rotary drive mechanism of a blower according to a second embodiment of the present invention. [Figure 12] FIG. 12 is a top view of a rotation drive mechanism of a blower according to a second embodiment of the present invention. [Figure 13] FIG. 13 is an exploded view of a rotation drive mechanism of a blower according to a second embodiment of the present invention. [Figure 14] FIG. 14 is a cross-sectional view of a rotation drive mechanism of a blower according to a second embodiment of the present invention. [Figure 15] FIG. 15 shows a cross-sectional view of a home appliance according to an embodiment of the present invention. [Figure 16] FIG. 16 shows a schematic structural diagram of a home appliance according to an embodiment of the present application. [Figure 17] FIG. 17 shows a left side view of a home electric appliance according to an embodiment of the present application. [Figure 18] FIG. 18 shows a right side view of a home appliance according to an embodiment of the present application. [Figure 19] FIG. 19 shows a top view of a home appliance according to an embodiment of the present application. [Figure 20] FIG. 20 is a schematic exploded view of a portion of a home appliance according to an embodiment of the present application. [Figure 21] FIG. 21 is a schematic exploded view of another part of a home appliance according to an embodiment of the present application. [Figure 22] FIG. 22 is a schematic exploded view of a portion of a home appliance according to another embodiment of the present application. [Figure 23] FIG. 23 is a schematic exploded view of another embodiment of the home electric appliance shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0085] In order to better understand the above objects, features and advantages of the present application, the present application will now be described in more detail in conjunction with the drawings and specific embodiments. It should be noted that, unless inconsistent, the embodiments and features of the present application can be combined with each other.

[0086] In the following description, numerous details are set forth in order to provide a thorough understanding of the present application; however, the present application may be embodied in other forms than those described herein, and the scope of protection of the present application is not limited to the specific examples disclosed below.

[0087] Hereinafter, a rotary drive mechanism 3 for a blower, a blower 10, and a home electric appliance 100 according to several embodiments of the present application will be described with reference to Figs.

[0088] As shown in Figs. 1 to 7, in the rotary drive mechanism 3 according to the first embodiment of the present application, the rotary drive mechanism 3 is connected to a rotary component of the blower device, and the rotary drive mechanism 3 is used to drive and rotate the rotary component. The rotary drive mechanism 3 includes a fixed bracket 31, a rotary bracket 32, and a drive component 41. The drive component 41 may be provided as a drive motor, and the drive motor may be a synchronous motor or a stepping motor. The fixed bracket 31 is fixedly provided to a support structure of the blower device, and the rotary bracket 32 ​​is fitted into the fixed bracket 31, which may be understood as follows: the rotary bracket 32 ​​is fitted outside the fixed bracket 31, and the rotary bracket 32 ​​can rotate relative to the fixed bracket 31, the rotary bracket 32 ​​is connected to a rotary component of the blower device, and the rotary bracket 32 ​​can rotate with the rotary component, and the drive component 41 is provided on the fixed bracket 31, and the drive component 41 is used to drive and rotate the rotary bracket 32 ​​relative to the fixed bracket 31.

[0089] Specifically, when the rotary drive mechanism 3 drives the rotary parts of the blower to rotate, the drive part 41 drives the rotary bracket 32 ​​to rotate in a predetermined trajectory relative to the fixed bracket 31, and the rotary bracket 32 ​​can take the rotary parts of the blower with it while rotating, thereby achieving the purpose of the rotary parts of the blower rotating and operating. The rotary drive mechanism 3 of the present application is smaller in volume than the crank rocker mechanism in the prior art, and by installing it in this way, the volume of the rotary drive mechanism 3 can be reduced, and when the rotary drive mechanism 3 is attached to the blower, the blower becomes more compact, so that the blower looks more neat, and the range of the rotation angle of the rotary bracket 32 ​​relative to the fixed bracket 31 is 0° to 360°, that is, the rotary bracket 32 ​​moves around the entire circumference relative to the fixed bracket 31, and there is no limit position in the rotation of the rotary bracket 32, so that the limit of the rotation angle of the rotary bracket 32 ​​relative to the fixed bracket 31 can be eliminated, and the swing angle of the rotary parts of the blower can be expanded, thereby expanding the blowing range of the blower.

[0090] As a result, by linking the fixed bracket 31, the rotating bracket 32 ​​and the driving part 41, the volume of the rotating driving mechanism 3 can be reduced compared to conventional technology, and when the rotating driving mechanism 3 is attached to the blower, the blower appears more neat, and since the rotation angle of the rotating bracket 32 ​​relative to the fixed bracket 31 is not limited, the swivel angle of the rotating part of the blower can be increased.

[0091] 3 and 4, in some embodiments of the present application, the rotary drive mechanism 3 may further include a first transmission part 42, and the rotary bracket 32 ​​is provided with a second transmission part 321 which is operably connected with the first transmission part 42, and the first transmission part 42 is connected to the driving shaft of the driving part 41. When the driving part 41 operates, the driving part 41 drives the driving shaft to rotate, and the driving shaft rotates with the first transmission part 42, and at the same time, the first transmission part 42 transmits power to the second transmission part 321, which then drives the rotary bracket 32 ​​to rotate, thereby realizing the effect of driving the rotary bracket 32 ​​to rotate relative to the fixed bracket 31.

[0092] In some embodiments of the present application, as shown in Figures 3 and 4, the first transmission part 42 may be a gear, and the second transmission part 321 may be a rack, and when the rotary drive mechanism 3 is installed, the gear and the rack mesh with each other, and the power of the drive part 41 can be transmitted to the rotary bracket 32 ​​through the transmission between the gear and the rack to rotate the rotary bracket 32. Furthermore, the linkage and transmission between the gear and the rack can stably transmit the power to the rotary bracket 32, so that the rotary bracket 32 ​​can rotate stably, and the arrangement form of the first transmission part 42 and the second transmission part 321 is more reasonable, so that the rotary part of the blower can rotate more stably.

[0093] In some embodiments of the present application, as shown in Figures 4 and 5, the fixed bracket 31 may include a body 311, the body 311 defines a mounting groove 312, a side wall of the mounting groove 312 has a first through hole 314, the first through hole 314 communicates with the mounting groove 312, the first transmission part 42 is located in the mounting groove 312, and the first transmission part 42 is operably connected to the second transmission part 321 through the first through hole 314. A part of the structure of the first transmission part 42 is located in the mounting groove 312, and another part of the structure of the first transmission part 42 extends from the first through hole 314 and then engages with the second transmission part 321, so that the first transmission part 42 and the second transmission part 321 can be operably connected to each other, and the power of the driving part 41 can be ensured to be transmitted to the rotating bracket 32, and the volume of the rotary drive mechanism 3 can be further reduced compared with the prior art.

[0094] In some embodiments of the present application, as shown in Figures 4 and 5, the second transmission part 321 may be provided on the inner wall surface of the rotating bracket 32 ​​facing the fixed bracket 31. Such an installation serves to operably connect the second transmission part 321 and the first transmission part 42, and can further reduce the volume of the rotation drive mechanism 3, thereby making the arrangement position of the second transmission part 321 more rational.

[0095] In some embodiments of the present application, as shown in FIGS. 3 to 5, the rotary drive mechanism 3 may further include a vibration damper 8, and the vibration damper 8 may be a vibration damper, and the side wall of the mounting groove 312 may have a second through hole 315, and the vibration damper 8 may be provided on the fixed bracket 31 and positioned in the mounting groove 312, and the vibration damper 8 is transmissibly connected to the second transmission part 321 through the second through hole 315. A part of the structure of the vibration damper 8 is positioned in the mounting groove 312, and another part of the structure of the vibration damper 8 extends from the second through hole 315 and engages with the second transmission part 321, and the vibration damper 8 plays a buffering role. During the rotation of the rotary bracket 32, the vibration damper 8 and the second transmission part 321 can cooperate to keep the rotary bracket 32 ​​rotating stably, and can prevent the rotary drive mechanism 3 from being damaged when the rotary bracket 32 ​​is forcibly driven to rotate by an external force. It should be noted that vibration dampers 8 with different specifications and structures can be used depending on the actual situation.

[0096] Furthermore, a plurality of vibration dampers 8 may be provided, and a plurality of second through holes 315 may also be provided, with the plurality of vibration dampers 8 and the plurality of second through holes 315 provided in a one-to-one correspondence. By installing in this manner, the stable rotation of the rotating bracket 32 ​​can be further ensured, and damage to the rotation drive mechanism 3 can be further prevented when the rotating bracket 32 ​​is forcibly driven to rotate by an external force.

[0097] In some embodiments of the present application, as shown in FIG. 3 , the rotation drive mechanism 3 may further include a support bearing 5, which is supported between the fixed bracket 31 and the rotating bracket 32. Such an installation can more effectively assemble the fixed bracket 31 and the rotating bracket 32, and can ensure that the rotating bracket 32 ​​rotates stably relative to the fixed bracket 31 when the rotating bracket 32 ​​rotates. The support bearing 5 can also support the rotating bracket 32, and can prevent the rotating bracket 32 ​​from shaking.

[0098] In some embodiments of the present application, as shown in Figures 3 and 4, a mounting post 313 may be provided on the outer wall surface of the bottom wall of the mounting groove 312, and the inner ring of the support bearing 5 may be fitted onto the outer surface of the mounting post 313, with the inner ring of the support bearing 5 being connected to the mounting post 313 and the outer ring of the support bearing 5 being connected to the rotating bracket 32. By installing in this manner, it is possible to ensure that the rotating bracket 32 ​​and the fixed bracket 31 can rotate relative to each other, and the operating characteristics of the rotation drive mechanism 3 can be ensured.

[0099] In some embodiments of the present application, as shown in FIG. 3, a reinforcing structure 19 may be provided on the inner wall surface of the bottom wall of the mounting groove 312, and the reinforcing structure 19 is integrally molded with the mounting post 313. By installing in this manner, the structural strength of the fixing bracket 31 can be increased and deformation of the fixing bracket 31 can be prevented.

[0100] In some embodiments of the present application, as shown in FIGS. 3 and 4 , the rotary drive mechanism 3 may further include a friction plate 7, the rotary bracket 32 ​​may define an assembly groove 22, the support bearing 5 is located in the assembly groove 22, the bottom wall of the assembly groove 22 may be provided with a third through hole 23, the free end of the mounting post 313 may extend from the third through hole 23, the friction plate 7 may be fitted on the outer surface of the mounting post 313, and the friction plate 7 abuts against the outer end of the third through hole 23, the friction plate 7 is characterized by being wear-resistant and easy to cut, the provision of the friction plate 7 can realize the control of the gap between the rotary bracket 32 ​​and the fixed bracket 31, the structure of the rotary drive mechanism 3 can be made more stable, and the friction plate 7 can provide a lubricating effect when the rotary bracket 32 ​​rotates, so that the rotary bracket 32 ​​can be easily rotated, and the rotation noise of the rotary bracket 32 ​​can be reduced.

[0101] In some embodiments of the present application, as shown in FIGS. 3 and 4 , the rotation drive mechanism 3 may further include a retaining ring 6, and a positioning groove 16 may be provided on the peripheral wall surface of the mounting post 313, the positioning groove 16 is arranged in the circumferential direction of the mounting post 313, the retaining ring 6 is provided in the positioning groove 16, and the retaining ring 6 abuts on the end surface of the friction plate 7 away from the third through hole 23, as shown in FIG. 3 , the retaining ring 6 abuts on the upper end surface of the friction plate 7, and the support bearing 5 is press-fitted into the rotation bracket 32. Therefore, by providing the retaining ring 6, the support bearing 5 and the rotation bracket 32 ​​can be securely locked to the mounting post 313 of the fixed bracket 31, and the structure of the rotation drive mechanism 3 can be more stably mounted.

[0102] In some embodiments of the present application, as shown in Figures 3 and 4, a first mounting portion 17 may be provided on the edge of the opening end of the mounting groove 312, and the driving part 41 may be provided with a second mounting portion 43 connected to the first mounting portion 17. By linking and connecting the first mounting portion 17 and the second mounting portion 43, the driving part 41 can be fixed to the fixed bracket 31, and the driving part 41 can be prevented from falling off the fixed bracket 31.

[0103] In some embodiments of the present application, as shown in Figures 3 and 4, the first mounting portion 17 may be provided with a first positioning portion 18, and the second mounting portion 43 may be provided with a second positioning portion 44 connected to the first positioning portion 18, the first positioning portion 18 may be provided as a positioning pillar, and the second positioning portion 44 may be provided as a positioning hole. When mounting the driving part 41 and the fixed bracket 31, the positioning pillar can be first inserted into the positioning hole to determine the relative positions of the driving part 41 and the fixed bracket 31, and then the driving part 41 and the fixed bracket 31 are assembled using bolts. Such installation is helpful in assembling the driving part 41 and the fixed bracket 31, and can improve the assembly efficiency of the rotation driving mechanism 3.

[0104] In some embodiments of the present application, the rotary drive mechanism 3 may further include a hole assembly (not shown), which may include a hole plate and a magnet, one of the hole plate and the magnet being provided on the fixed bracket 31, and the other of the hole plate and the magnet being provided on the rotary bracket 32. When the rotary bracket 32 ​​needs to rotate at a predetermined angle relative to the fixed bracket 31, the hole plate and the magnet can work in conjunction with each other to achieve the purpose of controlling the rotary bracket 32 ​​to rotate and operate at a predetermined angle, so that the rotary drive mechanism 3 can meet various operating requirements of users.

[0105] In some embodiments of the present application, the fixed bracket 31 may be provided with a first position limiting structure (not shown), and the rotating bracket 32 ​​may be provided with a second position limiting structure (not shown) that is connected to the first position limiting structure in a position-limiting manner. When the rotating bracket 32 ​​needs to rotate at a predetermined angle relative to the fixed bracket 31, the first position limiting structure and the second position limiting structure work in conjunction with each other to achieve the purpose of controlling the rotating bracket 32 ​​to rotate and operate at a predetermined angle, thereby enabling the rotation drive mechanism 3 to meet various operating requirements of users.

[0106] In some embodiments of the present application, as shown in FIG. 3, the central axis of the driving part 41, the central axis of the fixed bracket 31, and the central axis of the rotating bracket 32 ​​are arranged to overlap. By installing them in this manner, the volume of the rotation driving mechanism 3 in the direction perpendicular to the central axis can be further reduced, and the structure of the rotation driving mechanism 3 can be made more compact.

[0107] 6 and 7, in this embodiment, the rotation drive mechanism 3 according to the second specific example of the present application differs from the first specific example in the following respects. The central axis of the fixed bracket 31 and the central axis of the rotating bracket 32 ​​overlap, and the central axis of the driving part 41 and the central axis of the fixed bracket 31 do not overlap. By adjusting the position of the driving part 41 relative to the fixed bracket 31, eccentric motion of the rotating bracket 32 ​​and the driving part 41 is realized, which further expands the application scenarios.

[0108] The blower device of the embodiment of the present application includes the rotary drive mechanism 3 of the above embodiment, and the rotary drive mechanism 3 is provided in the blower device, which can reduce the volume of the rotary drive mechanism 3. When the rotary drive mechanism 3 is attached to the blower device, the blower device looks more neat, and the rotation angle of the rotating bracket 32 ​​relative to the fixed bracket 31 is not limited, so that the swivel angle of the rotating parts of the blower device can be increased.

[0109] Hereinafter, a blower 10 according to an embodiment of the present invention will be described with reference to Figs. 8 to 14. The blower 10 may be an appliance having a pitching function, such as an electric fan or a small heater.

[0110] 8 to 14, the blower 10 according to the embodiment of the present application will be described taking the blower 10 as an electric fan as an example, and the blower 10 includes a first fixed base 1, a second fixed base 2, and a rotary drive mechanism 3. The second fixed base 2 is connected to the head 20 of the blower 10, that is, the second fixed base 2 is connected to the head 20 of the electric fan, the first fixed base 1 is used to support the rotary drive mechanism 3, the rotary drive mechanism 3 has a fixed bracket 31 and a rotary bracket 32, the fixed bracket 31 is fixedly connected to the first fixed base 1, the rotary bracket 32 ​​is fixedly connected to the second fixed base 2, the rotary bracket 32 ​​is fitted to the outside of the fixed bracket 31, the rotary drive mechanism 3 further includes a drive assembly 4, and the drive assembly 4 drives the rotary bracket 32 ​​to rotate around the pitch axis.

[0111] In addition, the pitch axis may be parallel to the horizontal plane, and when the drive assembly 4 drives the rotating bracket 32 ​​to rotate it around the pitch axis, the second fixed base 2 rotates around the pitch axis following the rotating bracket 32, thereby allowing the head 20 of the blower 10 to rotate in the vertical direction, thereby realizing the pitch movement of the head 20 of the fan.

[0112] Specifically, when the head 20 of the blower 10 needs to rotate up and down, the drive assembly 4 drives the rotating bracket 32 ​​to rotate about the pitch axis, and when the rotating bracket 32 ​​rotates, it takes the second fixed seat 2 to rotate about the pitch axis, and when the second fixed seat 2 rotates about the pitch axis, it takes the head 20 to rotate up and down, thereby achieving the purpose that the head 20 of the blower 10 performs a pitch movement. By fitting the rotating bracket 32 ​​to the outside of the fixed bracket 31, the volume of the rotary drive mechanism 3 can be reduced compared with the four-bar link mechanism in the prior art, and the volume of the blower 10 can be reduced after the blower 10 is assembled, so that the blower 10 looks more neat and sophisticated, and further enhances the market competitiveness of the blower 10.

[0113] As a result, by linking the first fixed base 1, the second fixed base 2 and the rotary drive mechanism 3, the volume of the rotary drive mechanism 3 can be reduced compared to conventional technology, and when the blower device 10 is assembled, the blower device 10 looks more neat, thereby enhancing the market competitiveness of the blower device 10.

[0114] In some embodiments of the present application, as shown in Fig. 8, the driving assembly 4 may include a driving part 41 and a first transmission part 42, the first transmission part 42 is connected to the driving part 41, the driving part 41 may be provided as a driving motor, the first transmission part 42 is connected to the output shaft of the driving motor, and the rotating bracket 32 ​​may be provided with a second transmission part 321 meshing with the first transmission part 42 to transmit power. The driving motor can provide power for the rotation of the rotating bracket 32, and when the driving part 41 operates, the driving part 41 drives the output shaft to rotate, and the output shaft rotates with the first transmission part 42, and at the same time, the first transmission part 42 transmits power to the second transmission part 321, and then the second transmission part 321 drives the rotating bracket 32 ​​to rotate around the pitch axis, thereby realizing the effect of driving the second fixed seat 2 to rotate and operate relative to the first fixed seat 1.

[0115] In some embodiments of the present application, as shown in Fig. 8, the first transmission part 42 may be a gear, and the second transmission part 321 may be a rack, and when the rotary drive mechanism 3 is installed, the gear and the rack mesh with each other, and the power of the drive part 41 can be transmitted to the rotary bracket 32 ​​through the transmission between the gear and the rack to rotate the rotary bracket 32. Furthermore, the gear and the rack are linked and transmitted to each other, so that the power can be stably transmitted to the rotary bracket 32, and the rotary bracket 32 ​​can stably rotate around the pitch axis. Furthermore, the arrangement of the first transmission part 42 and the second transmission part 321 is more reasonable, and the head 20 of the blower 10 can rotate more stably.

[0116] In some embodiments of the present application, as shown in FIGS. 8 and 14 , the rotation drive mechanism 3 may further include a support bearing 5, and the fixed bracket 31 may include a main body 311, the main body 311 may define a mounting groove 312, and a mounting post 313 may be provided on the outer wall surface of the bottom wall of the mounting groove 312, the inner ring of the support bearing 5 is fitted onto the outer side of the mounting post 313, and the outer ring of the support bearing 5 is connected to the rotating bracket 32. This arrangement can more effectively assemble the fixed bracket 31 and the rotating bracket 32, and can ensure that the rotating bracket 32 ​​rotates stably relative to the fixed bracket 31 when the rotating bracket 32 ​​rotates. The support bearing 5 can also support the rotating bracket 32, which can prevent the rotating bracket 32 ​​from shaking and can ensure that the rotating bracket 32 ​​can rotate relative to the fixed bracket 31, thereby ensuring the operating characteristics of the rotation drive mechanism 3.

[0117] In some embodiments of the present application, as shown in FIG. 8 , the rotating bracket 32 ​​can define a through hole 322, which penetrates the rotating bracket 32 ​​in the thickness direction of the rotating bracket 32, and the through hole 322 is fitted into the outside of the fixed bracket 31 and the support bearing 5. By installing in this manner, the purpose of the rotating bracket 32 ​​being fitted into the fixed bracket 31 for operation can be achieved, the blower 10 can be assembled without any problems, and the rotating bracket 32 ​​can be easily connected to the outer ring of the support bearing 5.

[0118] In some embodiments of the present application, as shown in FIG. 8 , an annular boss 323 may be provided on the inner wall surface of the through hole 322, and a second transmission part 321 may be provided on the inner wall surface of the annular boss 323, that is, a rack may be provided on the inner wall surface of the annular boss 323, and the rack may be arranged to extend in the thickness direction of the rotating bracket 32. This installation can ensure that the second transmission part 321 engages with the first transmission part 42, and the driving part 41 drives the rotating bracket 32 ​​to rotate.

[0119] In some embodiments of the present application, as shown in Figures 8, 10 and 14, a receiving boss 326 is provided on the inner wall surface of the through hole 322, the receiving boss 326 is located between the annular boss 323 and the support bearing 5, and the receiving boss 326 abuts against the support bearing 5. When the rotation drive mechanism 3 is assembled, the receiving boss 326 abuts against the support bearing 5, which can play a role in restricting the receiving boss 326 and preventing the rotation bracket 32 ​​and the fixed bracket 31 from being separated, thereby ensuring the reliability of the assembly of the rotation drive mechanism 3 and further ensuring the reliability of the operation of the rotation drive mechanism 3.

[0120] 8, the rotation drive mechanism 3 may further include a retaining ring 6, which is fitted on the outside of the mounting post 313 and located at the end of the support bearing 5 remote from the fixed bracket 31. A positioning groove may be provided on the peripheral wall surface of the mounting post 313, which is arranged in the circumferential direction of the mounting post 313, the retaining ring 6 is provided in the positioning groove, and the retaining ring 6 abuts against the end of the support bearing 5 remote from the fixed bracket 31. By providing the retaining ring 6, the support bearing 5 and the rotation bracket 32 ​​can be securely attached to the rotation bracket 32, and the structure of the rotation drive mechanism 3 can be more securely attached.

[0121] 13 and 14 , in some embodiments of the present application, the rotation drive mechanism 3 may further include a bearing inner race receiving part 51, which may be provided on the fixed bracket 31, and which is located at the end of the support bearing 5 remote from the fixed bracket 31. The bearing inner race receiving part 51 may be connected to the fixed bracket 31 by a screw, and when the rotation drive mechanism 3 is mounted, the bearing inner race receiving part 51 abuts against the end of the support bearing 5 remote from the fixed bracket 31, so that the support bearing 5 can be securely mounted to the fixed bracket 31 and the support bearing 5 can be prevented from falling off the mounting column 313.

[0122] 13 and 14 , in some embodiments of the present application, the rotation drive mechanism 3 may further include a bearing outer ring receiving part 52, which may be provided on the rotation bracket 32, and the bearing outer ring receiving part 52 is located at the end of the support bearing 5 remote from the fixed bracket 31. The bearing outer ring receiving part 52 can be connected to the rotation bracket 32 ​​by a screw, and when the rotation drive mechanism 3 is mounted, the bearing outer ring receiving part 52 abuts against the end of the support bearing 5 remote from the fixed bracket 31, which can further prevent the support bearing 5 from falling off the mounting column 313, and can securely mount the support bearing 5 on the fixed bracket 31, thereby enabling the support bearing 5 to be securely supported between the fixed bracket 31 and the rotation bracket 32.

[0123] In some embodiments of the present application, as shown in Fig. 8, the rotary drive mechanism 3 may further include an annular friction plate 7, the friction plate 7 being made of a wear-resistant and easily cut material, the body 311 being fitted to the outside of the friction plate 7, and the friction plate 7 being fitted to the outside of the rotary bracket 32. The provision of the friction plate 7 can realize the control of the gap between the fixed bracket 31 and the rotary bracket 32, make the structure of the rotary drive mechanism 3 more stable, and ensure that the rotary bracket 32 ​​can rotate relative to the fixed bracket 31. Furthermore, the friction plate 7 can provide a lubricating effect when the rotary bracket 32 ​​rotates, making it easier for the rotary bracket 32 ​​to rotate, and further reducing the rotation noise of the rotary bracket 32.

[0124] The rotation drive mechanism 3 of the first embodiment of the present application differs from the rotation drive mechanism 3 of the second embodiment of the present application in the following respects. The rotation drive mechanism 3 of the second embodiment is not provided with a friction plate 7. Furthermore, the rotation drive mechanism 3 of the first embodiment restricts the support bearing 5 by a retaining ring 6, while the rotation drive mechanism 3 of the second embodiment restricts the support bearing 5 by a bearing outer ring retaining part 52 and a bearing inner ring retaining part 51.

[0125] In some embodiments of the present application, as shown in Fig. 14, the side wall of the mounting groove 312 may have a first through hole 314, the first through hole 314 communicates with the mounting groove 312, the driving part 41 and the first transmission part 42 may both be located in the mounting groove 312, and a part of the structure of the first transmission part 42 is transmissibly connected with the second transmission part 321 after passing through the first through hole 314. A part of the structure of the first transmission part 42 is located in the mounting groove 312, and another part of the structure of the first transmission part 42 is engaged with the second transmission part 321 after extending from the first through hole 314, such an arrangement allows the first transmission part 42 and the second transmission part 321 to be engaged and transmissibly connected, which can ensure the transmission of the power of the driving part 41 to the rotating bracket 32, and can further reduce the volume of the rotary drive mechanism 3 compared with the prior art. Furthermore, the gear and rack transmission is highly accurate, allowing the pitch angle of the fan head 20 to be accurately controlled.

[0126] In some embodiments of the present application, as shown in Figures 8 and 14, the rotary drive mechanism 3 may further include a vibration damper 8, the side wall of the mounting groove 312 may have a second through hole 315, the vibration damper 8 may be disposed in the mounting groove 312, and a part of the structure of the vibration damper 8 passes through the second through hole 315 and is transmissibly connected to the second transmission part 321. A part of the structure of the vibration damper 8 is located in the mounting groove 312, and another part of the structure of the vibration damper 8 extends from the second through hole 315 and engages with the second transmission part 321, so that the vibration damper 8 plays a buffering role. During the rotation of the rotating bracket 32, the vibration damper 8 and the second transmission part 321 engage with each other to transmit power, thereby ensuring stable rotation of the rotating bracket 32, and preventing damage to the rotary drive mechanism 3 when the rotating bracket 32 ​​is forcibly driven to rotate by driving an external force. It should be noted that vibration dampers 8 with different specifications and structures can be used depending on the actual situation.

[0127] In some embodiments of the present application, as shown in Fig. 13, the rotary drive mechanism 3 further includes a hole assembly 9, which may include a hole plate 91 and a magnet 92, one of the hole plate 91 and the magnet 92 being mounted on the fixed bracket 31, and the other of the hole plate 91 and the magnet 92 being mounted on the rotary bracket 32. When the rotary bracket 32 ​​needs to rotate at a predetermined angle relative to the fixed bracket 31, the hole plate 91 and the magnet 92 can work together to achieve the purpose of controlling the rotary bracket 32 ​​to rotate and operate at a predetermined angle around the pitch axis, thereby controlling the pitch angle of the rotation of the fan head 20, and further allowing the blower 10 to meet various blowing angles required by users.

[0128] In some embodiments of the present application, the depression angle of the rotating bracket 32 ​​can be set as A, satisfying the relationship -10°≦A≦0°, and the elevation angle of the rotating bracket 32 ​​can be set as B, satisfying the relationship 0°≦B≦90°. By installing in this manner, the fan head 20 can have a pitch angle of 100° in the vertical direction, and the head 20 can have a sufficient air blowing area in the vertical direction, so that the air blower 10 can meet the air blowing requirements of the user.

[0129] In some embodiments of the present application, as shown in Figures 8 and 10, the blower 10 may further include a vibration damping mechanism 93, which may be provided on the fixed bracket 31 and pivotally connected to the rotating bracket 32, i.e., the vibration damping mechanism 93 is connected to the rotating bracket 32, and the rotating bracket 32 ​​can pivot relative to the vibration damping mechanism 93. The vibration damping mechanism 93 is made of wear-resistant material, and vibration damping oil is added into the groove of the vibration damping mechanism 93. When the blower 10 is assembled, when the rotating bracket 32 ​​rotates around the pivot axis, the vibration damping mechanism 93 can achieve a vibration damping effect, which can better ensure that the rotating bracket 32 ​​rotates stably, and can better prevent damage to the rotary drive mechanism 3 when the rotating bracket 32 ​​is forcibly driven to rotate by the drive of an external force. In addition, the vibration damping mechanism 93 can play a supporting role for the rotating bracket 32, which can prevent the rotating bracket 32 ​​from shaking. The vibration control mechanism 93 can use vibration control dampers with different specifications and structures depending on the actual situation.

[0130] In some embodiments of the present application, as shown in FIG. 8, the rotating bracket 32 ​​may have a vibration damping mechanism connecting structure 324, which is fitted into the vibration damping mechanism 93. By installing it in this manner, the overall structure of the second fixed base 2 and the rotation drive mechanism 3 can be made more compact.

[0131] In some embodiments of the present application, as shown in FIG. 8 , the vibration damping mechanism connecting structure 324 may have a first wiring channel 325, and the vibration damping mechanism 93 may have a second wiring channel 94 communicating with the first wiring channel 325, and the bundle of electric wires connected to the drive motor can be passed through the first wiring channel 325 and the second wiring channel 94 and then connected to the drive motor, making it easier to wire the blower device 10 and further enabling the structural setting of the vibration damping mechanism connecting structure 324 and the vibration damping mechanism 93 to be rationalized.

[0132] Hereinafter, a home electric appliance 100 according to some embodiments of the present application will be described with reference to Figs.

[0133] As shown in Figs. 15 and 20 to 23, in one embodiment of the present application, a home electric appliance 100 including a first fixed base 1, a second fixed base 2, and a rotation drive mechanism 3 is provided.

[0134] Specifically, the rotation drive mechanism 3 includes a fixed bracket 31 and a rotating bracket 32, the fixed bracket 31 is connected to the second fixed seat 2, and the rotating bracket 32 ​​is connected to the first fixed seat 1, and the rotating bracket 32 ​​rotates around the fixed bracket 31, thereby rotating the first fixed seat 1 around the second fixed seat 2 in conjunction with the first fixed seat 1.

[0135] The home appliance 100 according to the present application includes a second fixed base 2, a first fixed base 1, and a rotation drive mechanism 3, the second fixed base 2 and the first fixed base 1 are connected by the rotation drive mechanism 3, and the rotation drive mechanism 3 can drive and rotate the first fixed base 1, thereby realizing automatic adjustment of the pitch angle of the first fixed base 1. The rotation drive mechanism 3 includes a fixed bracket 31 and a rotation bracket 32, the fixed bracket 31 is connected to the second fixed base 2, the rotation bracket 32 ​​is connected to the first fixed base 1, and the rotation bracket 32 ​​rotates around the fixed bracket 31, so that the first fixed base 1 can be rotated around the fixed bracket 31, i.e., the first fixed base 1 can be rotated around the second fixed base 2, thereby realizing rotation of the first fixed base 1 and the parts connected thereto in the home appliance 100.

[0136] Specifically, a rotation drive mechanism 3 is provided between the second fixed base 2 and the first fixed base 1, and the rotation drive mechanism 3 drives and rotates the first fixed base 1, thereby realizing automatic adjustment of the pitch angle of the first fixed base 1 and the components thereon. Specifically, the second fixed base 2 and the first fixed base 1 are connected by the rotation drive mechanism 3, and in the rotation drive mechanism 3, the rotation bracket 32 ​​can rotate circumferentially around the fixed bracket 31, and the structure is simple and reliable, which makes the home appliance 100 more reliable.

[0137] Specifically, the axis about which the rotating bracket 32 ​​rotates around the fixed bracket 31 is perpendicular to the longitudinal direction of the second fixed base 2; for example, when the first fixed base 1 is fixed to a flat surface or the ground, the axis about which the rotating bracket 32 ​​rotates is set horizontally, thereby allowing the first fixed base 1 to rotate above the home appliance 100 or below the home appliance 100, i.e., adjusting the pitch angle of the first fixed base 1.

[0138] Specifically, the first fixed seat 1 has at least one support point.

[0139] 20 and 21, the portion of the rotating bracket 32 ​​connected to the first fixed seat 1 supports the first fixed seat 1, so that the first fixed seat 1 rotates around the support point according to the rotation of the rotating bracket 32, that is, the first fixed seat 1 may be connected to the second fixed seat 2 in the form of a single arm. Furthermore, the first fixed seat 1 may further include a support part, which is rotatably connected to the second fixed seat 2, and the axis around which the support part and the second fixed seat 2 rotate overlaps with the axis around which the rotating bracket 32 ​​rotates around the fixed bracket 31, that is, the first fixed seat 1 may also be connected to the second fixed seat 2 in the form of a double arm.

[0140] Specifically, as shown in Fig. 16, the second fixed base 2 and the first fixed base 1 are connected to the rotating bracket 32 ​​by the fixed bracket 31, and the rotating bracket 32 ​​rotates around the fixed bracket 31, and the first fixed base 1 rotates around the second fixed base 2, thereby realizing automatic adjustment of the pitch angle of the first fixed base 1. Figs. 17 and 18 are a left side view and a top view of the home appliance 100, and Fig. 19 is a top view of the home appliance 100. As can be seen from Figs. 17 to 19, the structure is simple and the volume is small.

[0141] As shown in Figures 22 and 23, one embodiment of the present application includes the features described in the above embodiments, and further includes a home appliance 100 that includes a first vibration-damping frame 112 connected to a first fixed base 1 and a second vibration-damping frame 114 connected to a fixed bracket 31, the second vibration-damping frame 114 being fitted into the first vibration-damping frame 112, and the first vibration-damping frame 112 further includes a second vibration-damping frame that rotates around the second vibration-damping frame 114.

[0142] In this embodiment, the home appliance 100 further includes a first vibration-damping frame 112 and a second vibration-damping frame 114, the first vibration-damping frame 112 is connected to the first fixed base 1, and the second vibration-damping frame 114 is connected to the fixed bracket 31, so that the first fixed base 1 can be supported by the first vibration-damping frame 112 and the second vibration-damping frame 114, thereby improving the reliability of the installation of the first fixed base 1, and the second vibration-damping frame 114 is fitted into the first vibration-damping frame 112, and the first vibration-damping frame 112 can rotate around the second vibration-damping frame 114, so that the first fixed base 1 can be driven by the rotating bracket 32 ​​to rotate around the second fixed base 2.

[0143] It can be understood that the axis about which the first vibration damping frame 112 rotates around the second vibration damping frame 114 overlaps with the axis about which the rotating bracket 32 ​​rotates around the fixed bracket 31.

[0144] Specifically, the connection between the first vibration suppression frame 112 and the second vibration suppression frame 114 serves to support the first fixed base 1, that is, the first fixed base 1 can rotate with the first vibration suppression frame 112 and the second vibration suppression frame 114 as supporting points.

[0145] Specifically, as shown in Figures 22 and 23, the first fixed base 1 has two support points, one of which is a part connected to the rotating bracket 32 ​​of the first fixed base 1, and the other of which is a part connected to the first vibration damping frame 112 of the first fixed base 1.

[0146] Furthermore, the first vibration-damping frame 112 and the second vibration-damping frame 114 are located at one end of the fixed bracket 31, and the part of the rotating bracket 32 ​​connected to the first fixed base 1 is located at the other end of the fixed bracket 31; that is, in the axial direction which is the center of rotation of the rotating bracket 32, the two support points of the first fixed base 1 are located at both ends of the rotation drive mechanism 3, thereby improving the support effect to the first fixed base 1 and ensuring the reliability of the home appliance 100.

[0147] Furthermore, a vibration-damping liquid is provided between the first vibration-damping frame 112 and the second vibration-damping frame 114 .

[0148] In this embodiment, a vibration-damping liquid is provided between the first vibration-damping frame 112 and the second vibration-damping frame 114, which generates a vibration-damping force when the first vibration-damping frame 112 rotates around the second vibration-damping frame 114, thereby ensuring the stability of the home appliance 100.

[0149] It can be understood that the second vibration-damping frame 114 is fitted into the first vibration-damping frame 112, i.e., the inner wall of the second vibration-damping frame 114 is fitted outside the outer wall of the first vibration-damping frame 112, and vibration-damping liquid is provided between the first vibration-damping frame 112 and the second vibration-damping frame 114, i.e., vibration-damping liquid is provided between the outer wall of the first vibration-damping frame 112 and the inner wall of the second vibration-damping frame 114, so that the vibration-damping liquid provides a vibration-damping force when the first vibration-damping frame 112 and the second vibration-damping frame 114 perform rotational movement.

[0150] Specifically, a groove is provided in the first vibration-damping frame 112 and / or the second vibration-damping frame 114, and a vibration-damping liquid is provided in the groove. It is understood that the vibration-damping liquid is a liquid that can generate a vibration-damping force, and can attenuate the kinetic energy of a moving machine by the viscous resistance of the liquid medium. Specifically, the vibration-damping liquid includes, for example, a viscous liquid such as an oily liquid, and can be used according to the actual situation.

[0151] An embodiment of the present application includes the features described in any of the above embodiments, and further, the rotation angle of the first fixed base 1 is greater than 0° and less than or equal to 200°.

[0152] In this embodiment, the rotation angle of the first fixed seat 1 is greater than 0° and less than or equal to 200°; specifically, the rotation elevation angle of the first fixed seat 1 is greater than 0° and less than 90°, and the depression angle of the first fixed seat 1 is greater than 0° and less than 10°, where the elevation angle of the first fixed seat 1 is the angle at which the first fixed seat 1 rotates upward from the horizontal position, and the depression angle of the first fixed seat 1 is the angle at which the first fixed seat 1 rotates downward from the horizontal position.

[0153] One embodiment of the present application includes the features described in any of the above embodiments, and further, in any of the above embodiments, the home appliance 100 further includes a hole plate 91 provided on the second fixed base 2, and a magnetic component is further provided on the first fixed base 1, and the hole plate 91 is connected to the magnetic component.

[0154] In this embodiment, a hole plate 91 is provided on the second fixed seat 2, and a magnetic part is provided on the first fixed seat 1, and the cooperation between the hole plate 91 and the magnetic part can realize the movement of the first fixed seat 1 at any angle, that is, the cooperation between the hole plate 91 and the magnetic part can enable the first fixed seat 1 to rotate around the second fixed seat 2 at any predetermined angle, for example, when the first fixed seat 1 needs to rotate around the second fixed seat 2 at any predetermined angle such as 30°, 60°, or 90° from the initial position.

[0155] Specifically, the Hall plate 91 is an element that has the Hall effect.

[0156] One embodiment of the present application includes the features described in any of the above embodiments, and further includes a hollow portion in the second fixed base 2, the hollow portion being provided corresponding to the first vibration-damping frame 112, and the home appliance 100 further includes a connecting wire, which connects from the first fixed base 1 to the second fixed base 2 through the hollow portion.

[0157] In this embodiment, the second fixed base 2 is provided with a hollow portion, and the home appliance 100 further includes a connecting wire, which can pass through the hollow portion, i.e., the connecting wire can be connected to the first fixed base 1 and other components thereon through the hollow portion, thereby making the wiring of the home appliance 100 more reliable.

[0158] One embodiment of the present application includes the features described in any of the above embodiments, and further includes a rotational drive mechanism 3 including a drive part 41 connected to a fixed bracket 31 and a first transmission part 42 connected to the drive part 41 and the rotating bracket 32, respectively, and the drive part 41 drives and rotates the first transmission part 42, thereby rotating the rotating bracket 32 ​​in conjunction with the first transmission part 42.

[0159] In this embodiment, it can be understood that the driving part 41 drives the first transmission part 42 to rotate, so that the first transmission part 42 rotates together with the rotating bracket 32, and the first transmission part 42 rotates to rotate the rotating bracket 32 ​​in an interlocking manner, that is, the driving part 41 drives the first transmission part 42 to rotate, and since the first transmission part 42 is connected to the rotating bracket 32, the first transmission part 42 can move together with the rotating bracket 32, that is, the first transmission part 42 rotates to rotate the rotating bracket 32 ​​in an interlocking manner.

[0160] Specifically, the driving part 41 includes a motor, which may be a synchronous motor or a stepping motor.

[0161] One embodiment of the present application includes the features described in the above embodiments, and further includes a fixed bracket 31 including a main body portion connected to the driving part 41 and the second fixed seat 2, and a mounting post connected to the main body portion, wherein the rotating bracket 32 ​​is fitted into the mounting post and the rotating bracket 32 ​​rotates around the mounting post.

[0162] In this embodiment, the fixed bracket 31 includes a body and a mounting post, the driving part 41 is fixed to the body, and the rotary drive mechanism 3 can be fixed to another device by the body. The mounting post is provided on the body, and the rotary bracket 32 ​​is fitted into the mounting post, which allows the rotary bracket 32 ​​to rotate around the mounting post and improves the reliability of the connection between the fixed bracket 31 and the rotary bracket 32.

[0163] Specifically, the rotating bracket 32 ​​can rotate around the circumferential rotation of the fixed bracket 31, and the rotating bracket 32 ​​is fitted into the mounting post of the fixed bracket 31, so that the volume of the rotation drive mechanism 3 can be reduced.

[0164] Furthermore, the main body has a mounting groove 312, the first transmission part 42 is provided in the mounting groove 312, a first through hole is provided in the wall of the mounting groove 312, the first through hole penetrates the wall of the mounting groove 312, and the first transmission part 42 is connected to the rotating bracket 32 ​​via the first through hole.

[0165] In this embodiment, the main body has a mounting groove 312, and the first transmission part 42 is arranged in the mounting groove 312, thereby avoiding the first transmission part 42 being exposed to the outside and causing the rotation drive mechanism 3 to be untidy; the first transmission part 42 is arranged in the mounting groove 312, and a first through hole is provided in the wall surface of the mounting groove 312 to realize the connection between the first transmission part 42 and the rotating bracket 32, so that the first transmission part 42 can be connected to the rotating bracket 32 ​​through the first through hole; it can be understood that the first through hole is a through hole that penetrates the wall surface of the mounting groove 312.

[0166] Specifically, the rotating bracket 32 ​​is fitted onto the outside of the mounting groove 312 .

[0167] One embodiment of the present application includes the features described in the above embodiments, and further includes: a connecting part that is fitted into the mounting column, and an end of the connecting part remote from the driving part 41 is connected to the first fixed base 1; and a second transmission part 321 connected to the connecting part, wherein the first transmission part 42 is connected to the second transmission part 321, and the first transmission part 42 drives and rotates the second transmission part 321, thereby rotating the connecting part in conjunction with the second transmission part.

[0168] In this embodiment, the rotating bracket 32 ​​includes a connecting part and a second transmission part 321 connected thereto, the connecting part is fitted into the mounting post, the second transmission part 321 is connected to the first transmission part 42, the driving part 41 drives the first transmission part 42 to rotate, and the first transmission part 42 drives the second transmission part 321 to rotate, so that the connecting part connected to the second transmission part 321 rotates around the mounting post, that is, the rotating bracket 32 ​​rotates around the fixed bracket 31.

[0169] Specifically, the connection portion and the second transmission part 321 are integrally formed.

[0170] Specifically, the first transmission part 42 is connected to the second transmission part 321 via a first through hole.

[0171] One embodiment of the present application includes the features described in the above embodiments, and further includes a vibration damper 8 connected to the main body and arranged in the mounting groove 312, the vibration damper 8 including a third rotating part, a second through hole is provided in the wall of the mounting groove 312, the second through hole penetrates the wall of the mounting groove 312, and the third rotating part is connected to the second transmission part 321 via the second through hole.

[0172] In this embodiment, the home appliance 100 further includes a vibration damper 8, which is mounted on the main body and accommodated in the mounting groove 312. The vibration damper 8 includes a third rotating part, and the third rotating part is connected to the second transmission part 321. When the rotary drive mechanism 3 operates, the driving part 41 drives the first transmission part 42 to rotate, the first transmission part 42 drives the second transmission part 321 to rotate, and the second transmission part 321 drives the third rotating part to rotate, and the third rotating part rotates. In other words, when the third rotating part rotates, it consumes the kinetic energy caused by the rotation of the second transmission part 321 and the kinetic energy caused by the rotation of the second transmission part 321 is attenuated, thereby producing a vibration damping effect. The vibration damper 8 ensures the stability of the operation of the rotary drive mechanism 3. Furthermore, when the rotary bracket 32 ​​is forcibly driven by an external force, the vibration damping effect of the vibration damper 8 can ensure the reliability of the rotary drive mechanism 3.

[0173] Specifically, the vibration damper 8 further includes a fixed seat and a position limiting seat, the position limiting seat is provided on the fixed seat, the third rotating part is fitted into the position limiting seat, and the space between the third rotating part and the position limiting seat accommodates vibration damping liquid.

[0174] Specifically, the vibration damper 8 includes a fixed seat and a position limiting seat, the fixed seat is used to mount the vibration damper 8 to the main body, the position limiting seat is mounted on the fixed seat, and the third rotating part is fitted into the position limiting seat, so that the third rotating part is mounted on the fixed seat and can rotate around the position limiting seat, and a vibration damping liquid is accommodated between the third rotating part and the position limiting seat. When the third rotating part rotates, it can take the vibration damping liquid between the third rotating part and the position limiting seat and change its position, thereby consuming energy and generating resistance to the movement of the third rotating part, thereby producing a vibration damping effect.

[0175] It is understood that the vibration-damping liquid is a liquid that can generate a vibration-damping force, and can attenuate the kinetic energy of a moving machine by the viscous resistance of the liquid medium. Specifically, the vibration-damping liquid includes, for example, a viscous liquid such as an oil-based liquid, and can be used according to the actual situation.

[0176] Of course, the vibration damper 8 may be another mechanism capable of providing a vibration damping effect.

[0177] Furthermore, the first transmission part 42, the second transmission part 321 and the third rotating part all include a gear structure, and the first transmission part 42 and the second transmission part 321 mesh with each other through the gear structure to transmit power, and the second transmission part 321 and the third rotating part mesh with each other through the gear structure to transmit power.

[0178] In this embodiment, the first transmission part 42, the second transmission part 321 and the third rotating part all include a gear structure, the first transmission part 42 and the second transmission part 321 are connected by a gear structure to realize gear transmission and improve the reliability of the connection between the two, and the second transmission part 321 and the third rotating part are connected by a gear structure to realize gear transmission and improve the reliability of the connection between the two.

[0179] Specifically, the first transmission part 42 is an external gear, the second transmission part 321 is an internal gear, and the third rotating part is an external gear, that is, the first transmission part 42 and the second transmission part 321 are both located within the second transmission part 321 and connected to the third rotating part, the first transmission part 42 can rotate to drive and rotate the second transmission part 321, and the third rotating part can rotate to provide a vibration damping effect to the rotation of the second transmission part 321.

[0180] An embodiment of the present application includes the features described in the above embodiments, and further includes: a driving part 41 including a rotor and an output shaft connected to the rotor, the output shaft being connected to a first transmission part 42; and the rotation axis of the rotor, the axis of the mounting post, and the axis around which the rotating bracket 32 ​​rotates are coaxial, or the rotation axis of the rotor and the axis of the mounting post do not overlap.

[0181] In this embodiment, the driving part 41 includes an output shaft and a rotor, and the rotor rotates to drive the output shaft to rotate, so that the output shaft can drive the first connecting part to rotate. The rotation axis of the rotor, the axis of the mounting post, and the axis around which the rotation bracket 32 ​​rotates are coaxially arranged, so as to reduce the space used by the rotation driving mechanism 3. Alternatively, the axis around which the rotor rotates and the axis of the mounting post do not overlap, that is, the rotation bracket 32 ​​performs eccentric movement with respect to the driving part 41, so that the rotation driving mechanism 3 can be applied to various devices according to actual situations.

[0182] One embodiment of the present application includes the features described in any of the above embodiments, and further includes a home appliance 100 that further includes a support bearing 5 provided between the rotating bracket 32 ​​and the mounting column, a position limiting part located at the end of the rotating bracket 32 ​​away from the driving part 41 in the axial direction about the center of rotation of the rotating bracket 32, a friction plate 7 provided between the rotating bracket 32 ​​and the position limiting part in the axial direction about the center of rotation of the rotating bracket 32, and a position limiting structure connected to the fixed bracket 31 and limiting the rotation angle of the rotating bracket 32.

[0183] In this embodiment, the home appliance 100 further includes a support bearing 5, which is installed inside the rotating bracket 32 ​​and fitted to the mounting column, and serves to connect the rotating bracket 32 ​​and the mounting column; the home appliance 100 further includes a position limiting part, which is installed on the rotating bracket 32 ​​and located at the end of the rotating bracket 32 ​​away from the driving part 41, and the position limiting part is engaged with the fixed bracket 31, so that the support bearing 5 is limited to the mounting column; the home appliance 100 further includes a friction plate 7, which is installed between the rotating bracket 32 ​​and the position limiting part and is made of a wear-resistant and easy-to-cut material, which can realize the control of the gap between the rotating bracket 32 ​​and the fixed bracket 31, and can stabilize the rotation drive mechanism 3; and the friction plate 7 also has a lubricating effect when the rotating bracket 32 ​​rotates. The fixed bracket 31 is further provided with a position limiting structure, which can realize the position limiting to the rotating bracket 32 ​​and can fix the rotating bracket 32 ​​in a predetermined position after rotation.

[0184] Specifically, the position limiting component is a retaining ring. Specifically, the friction plate 7 is a pad made of a wear-resistant material, and further, the friction plate 7 is an elastic pad.

[0185] Furthermore, the home appliance 100 includes any one of an electric fan, an air conditioner, and a heater.

[0186] In this embodiment, the home appliance 100 includes any one of an electric fan, an air conditioner, or a heater. Specifically, when the home appliance 100 is an electric fan, the mounting part is a support structure, the rotating part is the fan head, and the axis line which is the center of rotation of the rotating bracket 32 ​​in the rotary drive mechanism 3 is perpendicular to the longitudinal direction of the support structure, thereby allowing the fan head to rotate up and down, that is, to adjust the pitch angle of the fan head.

[0187] Specifically, when a home air conditioner includes a heating appliance, the heating appliance includes a head and a support part, the head is provided with a heat dissipation structure, the head and the support part are connected by a rotation drive mechanism 3, and the rotation axis of the rotation bracket 32 ​​can be set perpendicular to the longitudinal direction of the support part, thereby realizing the adjustment of the pitch angle of the heating appliance.

[0188] As shown in Figures 15 to 23, in one specific example of the present application, a home appliance 100 includes a second fixed base 2, a first fixed base 1, and a rotation drive mechanism 3, the first fixed base 1 is used to fix an appliance (e.g., a fan head), the first fixed base 1 is used to support and attach the rotation drive mechanism 3, the second fixed base 2, the first fixed base 1, and the rotation drive mechanism 3 are supported by a fulcrum, in the case of a single arm, one fulcrum (a support point formed from a part of the rotating bracket 32 ​​connected to the first fixed base 1) is used, and in the case of a double arm, two fulcrums (a support point formed from a part of the rotating bracket 32 ​​connected to the first fixed base 1, and a support point formed by the first fixed base 1, the first vibration damping frame 112, and the second vibration damping frame 114) are used, and the first fixed base 1 rotates around the fulcrum in accordance with the operation of a drive part 41 (motor) in the rotation drive mechanism 3.

[0189] The maximum depression angle is set to -10° and the maximum elevation angle to 90°. If necessary, the pitch angle (on the other side) can be adjusted from -10° to 90°, and the pitch angle range is 0° to 200°. Furthermore, by increasing the number of hole plates, it is possible to adjust the pitch angle to any angle between -10° to 90° and 90° to -10°.

[0190] As shown in FIG. 20, a home appliance 100 that can achieve an automatic pitching function with a single arm includes a second fixed base 2, a first fixed base 1, and a rotation drive mechanism 3, and as shown in the exploded view of FIG. 21, specifically, includes the following:

[0191] The second fixing seat 2 is used to fix the instrument and at the same time fix the fixing bracket 31 on the rotary drive mechanism 3 .

[0192] The first fixed base 1 is used to fix and support the rotary drive mechanism 3 and is driven by the rotary drive mechanism 3 to rotate around a fulcrum.

[0193] The fixed bracket 31 supports and fixes the rotary drive mechanism 3, and the drive motor, drive gear and vibration damper are mounted therein.

[0194] A drive motor is used to provide the rotational driving force and transmit power to the rotating bracket 32 ​​through a drive gear.

[0195] A drive gear is fixed to the drive motor and cooperates with the internal gear of the rotating bracket 32 ​​to realize the transmission of power.

[0196] The vibration damper 8 is fixed within the fixed bracket 31 and cooperates with the internal gear of the rotating bracket 32 ​​to ensure stability during motion or to ensure the reliability of the rotary drive mechanism 3 when it is forcibly driven by an external force.

[0197] The rotating bracket 32 ​​is fixed to the first fixed base 1, and when the drive motor is activated, the first fixed base 1 is rotated in conjunction with the rotating bracket 32.

[0198] The friction plate 7 is mounted between the rotating bracket 32 ​​and the fixed bracket 31 and is made of a wear-resistant and easy-to-cut material. Firstly, it realizes the control of the gap between the rotating bracket 32 ​​and the fixed bracket 31 and stabilizes the rotary drive mechanism 3; secondly, the friction plate 7 has a lubricating effect when the rotating bracket 32 ​​rotates.

[0199] The support bearing 5 is fitted to the mounting post of the fixed bracket 31 and fitted externally within the rotating bracket 32 ​​to ensure the relative rotation therebetween.

[0200] A retaining ring is used to secure the support bearing 5 to the mounting post of the fixed bracket 31.

[0201] The hole plate 91 realizes control of any angle in the program.

[0202] The working principle of the home appliance 100 according to the present application is as follows: When the driving motor runs, the driving gear transmits power to the rotating bracket 32, and the rotating bracket 32 ​​takes the first fixed base 1 with it to rotate around the fulcrum.

[0203] As shown in FIG. 22, a home appliance 100 capable of realizing an automatic pitching function with a double arm includes a second fixed base 2, a first fixed base 1, and a rotation drive mechanism 3, and as shown in the exploded view of FIG. 9, specifically includes the following:

[0204] The second fixing seat 2 is used to fix the instrument and at the same time fix the fixing bracket 31 on the rotary drive mechanism 3 .

[0205] The first fixed base 1 is used to fix and support the rotary drive mechanism 3 and is driven by the rotary drive mechanism 3 to rotate around a fulcrum.

[0206] The fixed bracket 31 supports and fixes the rotary drive mechanism 3, and the drive motor, drive gear and vibration damper are mounted therein.

[0207] A drive motor is used to provide the rotational driving force and transmit power to the rotating bracket 32 ​​through a drive gear.

[0208] A drive gear is fixed to the drive motor and cooperates with the internal gear of the rotating bracket 32 ​​to realize the transmission of power.

[0209] The vibration damper 8 is fixed within the fixed bracket 31 and cooperates with the internal gear of the rotating bracket 32 ​​to ensure stability during motion or to ensure the reliability of the rotary drive mechanism 3 when it is forcibly driven by an external force.

[0210] The rotating bracket 32 ​​is fixed to the first fixed base 1, and when the drive motor is activated, the first fixed base 1 is rotated in conjunction with the rotating bracket 32.

[0211] The friction plate 7 is mounted between the rotating bracket 32 ​​and the fixed bracket 31 and is made of a wear-resistant and easy-to-cut material. Firstly, it realizes the control of the gap between the rotating bracket 32 ​​and the fixed bracket 31 and stabilizes the rotary drive mechanism 3; secondly, the friction plate 7 has a lubricating effect when the rotating bracket 32 ​​rotates.

[0212] The support bearing 5 is fitted to the mounting post of the fixed bracket 31 and fitted externally within the rotating bracket 32 ​​to ensure the relative rotation therebetween.

[0213] A retaining ring is used to secure the support bearing 5 to the mounting post of the fixed bracket 31.

[0214] The hole plate 91 realizes control of any angle in the program.

[0215] The first vibration-damping frame 112 is made of a wear-resistant material and is fixed to the first fixed base 1, and cooperates with the second vibration-damping frame 114 to provide support and vibration-damping effects.

[0216] The second vibration-damping frame 114 is made of a wear-resistant material and is fixed to the fixing bracket 31. The grooves are filled with vibration-damping oil, and the second vibration-damping frame 114 cooperates with the first vibration-damping frame 112 to provide support and vibration-damping effects.

[0217] The working principle of the home appliance 100 according to the present application is as follows: When the driving motor runs, the driving gear transmits power to the rotating bracket 32, and the rotating bracket 32 ​​takes the first fixed base 1 with it to rotate around the fulcrum.

[0218] At the joint, wiring is done on the side of the first vibration-damping frame 112, and the central part on the left side of the movable joint of the first fixed base 1 is designed to be hollow, making wiring easy and reliable. This technical solution makes the joint movable, adds friction plates 7 and vibration dampers 8, and cleverly realizes the adjustment of the pitch angle of the device through a modular assembly including the rotary drive mechanism 3, making the mechanism stable, reliable, and easy to install. By adjusting the output of the drive motor and optimizing the structure of the product, it can be used in most devices with automatic adjustment motion.

[0219] In this application, unless otherwise specified, the term "plurality" refers to two or more than two. The terms "attach," "connect," "connect," "fixed," and the like are all understood in a broad sense, for example, "connect" may mean fixed connection, detachable connection, or integral connection. "Connect" may mean direct connection, or indirect connection via an intermediate medium. Those skilled in the art can specifically understand the meaning of the above terms in this application in light of the circumstances.

[0220] In the description of this specification, when a statement includes "one embodiment," "some embodiments," "examples," or the like, it is intended that the particular feature, structure, material, or characteristic described using the embodiment or example is included in at least one embodiment or example of this application. In this specification, exemplary statements including the above terms do not necessarily refer to the same embodiment or example. In addition, the particular feature, structure, material, or characteristic described may be combined in any suitable manner in any one or more embodiments or examples.

[0221] The above contents are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art can make various modifications and variations to the present application. Any modifications, equivalent replacements, improvements, etc. made without departing from the principles and spirit of the present application shall be within the scope of protection of the present application. [Explanation of symbols]

[0222] The correspondence between the reference characters and the part names in FIGS. 1 to 23 is as follows. 100...home appliance, 10...blower device, 1...first fixed seat, 2...second fixed seat, 3...rotation drive mechanism, 31...fixing bracket, 311...main body, 312...mounting groove, 313...mounting column, 314...first through hole, 315...second through hole, 16...positioning groove, 17...first mounting portion, 18...first positioning portion, 19...reinforcement structure, 32...rotating bracket, 321...second transmission part, 322...through hole, 323...annular boss, 324...vibration damping mechanism connection structure, 325...first wiring channel, 326... Receiving boss, 22...assembly groove, 23...third through hole, 4...drive assembly, 41...drive part, 42...first transmission part, 43...second mounting portion, 44...second positioning portion, 5...support bearing, 51...bearing inner ring receiving part, 52...bearing outer ring receiving part, 6...retaining ring, 7...friction plate, 8...vibration damper, 9...hole assembly, 91...hole plate, 92...magnet, 93...vibration damping mechanism, 94...second wiring channel, 20...head, 112...first vibration damping frame, 114...second vibration damping frame.

Claims

1. A first fixed seat; A second fixed seat; a rotary drive mechanism including a fixed bracket, a rotating bracket, a driving component, a first transmission component, and a vibration damper, the fixed bracket including a main body, the main body being connected to the driving component and the second fixed seat, the rotating bracket being connected to the first fixed seat, the first transmission component being connected to the driving component and the rotating bracket, and the vibration damper being connected to the main body; A first vibration-damping frame connected to the first fixed seat; a second vibration-damping frame connected to the fixed bracket, the second vibration-damping frame being fitted into the first vibration-damping frame, and the first vibration-damping frame rotating around the second vibration-damping frame; The rotating bracket includes a second transmission part, the vibration damper includes a third rotating part, the main body has an installation groove, and a first through hole and a second through hole are provided in a wall surface of the installation groove, the first through hole and the second through hole are provided in a wall surface of the installation groove, The first transmission part and the vibration damper are disposed in the mounting groove, the first transmission part is connected to the second transmission part through the first through hole, and the third rotating part is connected to the second transmission part through the second through hole; The driving part drives and rotates the first transmission part, and the first transmission part drives and rotates the second transmission part, thereby rotating the rotating bracket relative to the fixed bracket in an interlocking manner; The rotating bracket rotates around the fixed bracket to link the first fixed seat with the second fixed seat.

2. The home appliance according to claim 1 , wherein a vibration-damping liquid is provided between the first vibration-damping frame and the second vibration-damping frame.

3. The household electric appliance according to claim 1 or 2, wherein the first fixing base is rotatable within an angular range of 200° about a horizontal axis.

4. The household electrical appliance according to claim 3 , further comprising a Hall plate provided on the second fixed seat, the first fixed seat further comprising a magnetic part, the Hall plate being connected to the magnetic part.

5. The household appliance according to claim 1 or 2, wherein a hollow portion is provided in the second fixed seat, the hollow portion being provided corresponding to the first vibration-damping frame, and the household appliance further includes a connecting wire, the connecting wire connecting from the first fixed seat to the second fixed seat through the hollow portion.

6. The fixing bracket is The home appliance according to claim 1 or 2, further comprising a mounting post connected to the main body, the rotating bracket being fitted to the mounting post and the rotating bracket rotating around the mounting post.

7. The rotating bracket is a connecting portion that is fitted to the mounting post, the connecting portion having an end remote from the driving component that is connected to the first fixing seat; The household electrical appliance according to claim 6 , wherein the second transmission part is connected to the connecting part, and the first transmission part drives and rotates the second transmission part, thereby rotating the connecting part in conjunction with the second transmission part.

8. The household appliance according to claim 1 or 2, wherein the first transmission part, the second transmission part, and the third rotating part all include a gear structure, the first transmission part and the second transmission part mesh with each other via the gear structure to transmit power, and the second transmission part and the third rotating part mesh with each other via the gear structure to transmit power.

9. The driving component includes a rotor and an output shaft connected to the rotor, the output shaft being connected to the first transmission component; The home appliance according to claim 6, wherein the rotation axis of the rotor, the axis of the mounting post, and the axis around which the rotating bracket rotates are coaxial, or the rotation axis of the rotor and the axis of the mounting post do not overlap.

10. a support bearing provided between the rotation bracket and the mounting post; a position limiting component located at an end of the rotating bracket away from the driving component in an axial direction about which the rotating bracket rotates; A friction plate is provided between the rotating bracket and the position limiting component in an axial direction that is the center of rotation of the rotating bracket; The household appliance according to claim 6 , further comprising: a position limiting structure connected to the fixed bracket and limiting a rotation angle of the rotating bracket.

11. The home appliance according to claim 1 or 2, wherein the home appliance is any one of an electric fan, an air conditioner, and a heater.

Images