Patent ID: 12215702

The corresponding relations between the reference numerals and the component names inFIGS.1to23are:

100household appliance,10air supply apparatus,1first fixed seat,2second fixed seat,3rotation driving mechanism,31fixed bracket,311body portion,312mounting groove,313mounting post,314first through hole,315second through hole,16positioning groove,17first mounting portion,18first positioning portion,19reinforcing structure,32rotary bracket,321second transmission member,322through-hole,323annular boss,324damping mechanism connection structure,325first routing channel,326stopper boss,22fitting groove,23third through hole,4driving assembly,41driving member,42first transmission member,43second mounting portion,44second positioning portion,5support bearing,51bearing inner ring stop,52bearing outer ring stop,6snap spring,7friction plate,8damper,9Hall assembly,91Hall plate,92magnet,93damping mechanism,94second routing channel,20handpiece,112first damping frame, and114second damping frame.

DETAILED DESCRIPTION OF THE DISCLOSURE

Embodiments of the present disclosure may be more clearly understood, a more particular description of the present disclosure will be further described in detail with reference to the accompanying drawings and specific implementation modes. It should be noted that the embodiments and features of the embodiments of the present disclosure can be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, the present disclosure may be implemented otherwise than as specifically described herein. Accordingly, the scope of the present disclosure is not limited by the specific embodiments disclosed below.

A rotation driving mechanism3, an air supply apparatus10, and a household appliance100of an air supply apparatus according to some embodiments of the present disclosure are described below with reference toFIGS.1to23.

As shown inFIGS.1to7, according to the rotation driving mechanism3of the first specific embodiment of the present disclosure, the rotation driving mechanism3is connected to a rotary component of the air supply apparatus, and the rotation driving mechanism3is used for driving the rotary component to rotate. The rotation driving mechanism3includes: a fixed bracket31, a rotary bracket32, and a driving member41. The driving member41may be set to be a driving motor, and the driving motor may be a synchronous motor or a stepping motor. The fixed bracket31is fixedly arranged on a support structure of the air supply apparatus, the rotary bracket32being sleeved on the fixed bracket31. It can also be understood that the rotary bracket32is sleeved on the outer side of the fixed bracket31, and the rotary bracket32is rotatable with respect to the fixed bracket31; the rotary bracket32is connected to the rotary component of the air supply apparatus; the rotary bracket32can rotate with the rotary component; the driving member41is arranged on the fixed bracket31; the driving member41is used for driving the rotary bracket32to rotate with respect to the fixed bracket31.

Specifically, when the rotation driving mechanism3drives the rotary component of the air supply apparatus to rotate, the driving member41drives the rotary bracket32to make a predetermined trajectory rotation with respect to the fixed bracket31, and the rotary bracket32can move together with the rotary component of the air supply apparatus during the rotation, and achieving the working purpose of the rotation of the rotary component of the air supply apparatus. The size of the rotation driving mechanism3of the present disclosure is smaller than a crank and rocker mechanism of the prior art, and such an arrangement can reduce the size of the rotation driving mechanism3. After the rotation driving mechanism3is mounted on the air supply apparatus, the air supply apparatus can be made to look more compact, and the air supply apparatus can be made more pleasing to the eye. The rotation angle range of the rotary bracket32with respect to the fixed bracket31is 0° to 360°, namely, the rotary bracket32moves with respect to the fixed bracket31over the entire circumference. The rotation of rotary bracket32has no limiting position and the rotation angle of the rotary bracket32with respect to the fixed bracket31can be made unlimited, and the shaking angle of the rotary component of the air supply apparatus can be enlarged and the air supply range of the air supply apparatus can be enlarged.

Therefore, with the coordination of the fixed bracket31, the rotary bracket32, and the driving member41, the size of the rotation driving mechanism3can be reduced as compared with the prior art. The air supply apparatus can be made more pleasing to the eye after the rotation driving mechanism3is mounted on the air supply apparatus, and the rotation angle of the rotary bracket32with respect to the fixed bracket31is not limited, and the shaking angle of the rotary component of the air supply apparatus can be enlarged.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the rotation driving mechanism3may further include: a first transmission member42, and the rotary bracket32is provided with a second transmission member321drivingly mating with the first transmission member42, the first transmission member42being connected to the driving shaft of the driving member41. When the driving member41is working, the driving member41drives the driving shaft to rotate, and the driving shaft carries the first transmission member42to rotate. Meanwhile, the first transmission member42transmits power to the second transmission member321, and then the second transmission member321drives the rotary bracket32to rotate to achieve the working effect of driving the rotary bracket32to rotate with respect to the fixed bracket31.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the first transmission member42may be provided as a gear, and the second transmission member321may be provided as a rack. After the rotation driving mechanism3is mounted, the gear is engaged with the rack, and the power of the driving member41can be transmitted to the rotary bracket32via the transmission between the gear and the rack and the rotary bracket32rotates. Furthermore, through the coordinated transmission of the gear and the rack, the power can be smoothly transmitted to the rotary bracket32to smoothly rotate the rotary bracket32, and making the arrangement of the first transmission member42and the second transmission member321more reasonable and making the rotary component of air supply apparatus rotates more smoothly.

In some embodiments of the present disclosure, as shown inFIGS.4and5, the fixed bracket31may include: a body portion311, and the body portion311defines a mounting groove312, the side wall of the mounting groove312has a first through hole314, the first through hole314communicates with the mounting groove312, the first transmission member42is located in the mounting groove312, and the first transmission member42drivingly mates with the second transmission member321via the first through hole314. A part of the structure of the first transmission member42is located in the mounting groove312, and another part of the structure of the first transmission member42is engaged with the second transmission member321after extending out of the first through hole314and the first transmission member42and the second transmission member321drivingly mate. At that, the power transmission from the driving member41to the rotary bracket32can be ensured, and the size of the rotation driving mechanism3can be further reduced compared with the prior art.

In some embodiments of the present disclosure, as shown inFIGS.4and5, the second transmission member321may be arranged at the inner wall surface of the rotary bracket32opposite to the fixed bracket31. Such arrangement facilitates the driving mating between the second transmission member321and the first transmission member42and the size of the rotation driving mechanism3can be better reduced. Therefore, the arrangement position of the second transmission member321may be more reasonable.

In some embodiments of the present disclosure, as shown inFIGS.3to5, the rotation driving mechanism3may further comprise: a damper8, and the damper8can be a damper, the side wall of the mounting groove312can have a second through hole315, the damper8can be provided on the fixed bracket31and located in the mounting groove312, and the damper8drivingly mates with the second transmission member321via the second through hole315. A part of the structure of the damper8is located in the mounting groove312, and another part of the structure of the damper8extends out of the second through hole315and then engages with the second transmission member321; the damper8has a buffering function; during the rotation of the rotary bracket32, the rotary bracket32can be kept rotating stably by the damper8coordinating with the second transmission member321; when the rotary bracket32is forced to rotate driven by an external force, the rotation driving mechanism3can be prevented from being damaged. It needs to be noted that dampers8with different specification structures can be used according to actual conditions.

Further, multiple dampers8and multiple second through holes315may be provided, and multiple dampers8and multiple second through holes315are provided in a one-to-one correspondence and stable rotation of the rotary bracket32can be better kept, and the damage to the rotation driving mechanism3can be better prevented when the rotary bracket32is forced to rotate by being driven by an external force.

In some embodiments of the present disclosure, as shown inFIG.3, the rotation driving mechanism3may further comprise: a support bearing5, and the support bearing5is supported between the fixed bracket31and the rotary bracket32, and the fixed bracket31and the rotary bracket32can be better assembled together, and when the rotary bracket32rotates, it can ensure that the rotary bracket32rotates smoothly with respect to the fixed bracket31; the support bearing5has a supporting effect on the rotary bracket32, and can avoid the rotary bracket32from shaking.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the outer wall surface of the bottom wall of the mounting groove312can be provided with a mounting post313, the inner ring of the support bearing5can be sleeved on the outer surface of the mounting post313, the inner ring of the support bearing5is connected to the mounting post313, and the outer ring of the support bearing5is connected to the rotary bracket32. Such arrangement can ensure that the rotary bracket32and the fixed bracket31can rotate with respect to each other, and can ensure the working performance of the rotation driving mechanism3.

In some embodiments of the present disclosure, as shown inFIG.3, the inner wall surface of the bottom wall of the mounting groove312may be provided with a reinforcing structure19. The reinforcing structure19is integrally formed with the mounting post313and the structural strength of the fixed bracket31may be improved and the deformation of the fixed bracket31may be avoided.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the rotation driving mechanism3may further include: a friction plate7, and the rotary bracket32can define a fitting groove22, the support bearing5is located in the fitting groove22, and the bottom wall of the fitting groove22can be provided with a third through hole23; the free end of the mounting post313extends out of the third through hole23, the friction plate7can be sleeved on the outer surface of the mounting post313, and the friction plate7abuts against the outer end of the third through hole23; the friction plate7has wear-resistant and easy-to-wear properties; by providing the friction plate7, the gap between the rotary bracket32and the fixed bracket31can be controlled, and the structure of the rotation driving mechanism3can be made more stable, and the friction plate7can provide a lubricating effect when the rotary bracket32rotates. Therefore, the rotation of the rotary bracket32can be facilitated, and further, the rotational noise of the rotary bracket32can be reduced.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the rotation driving mechanism3may further include: a snap spring6, and the circumferential wall surface of the mounting post313can be provided with a positioning groove16, the positioning groove16is arranged along the circumferential direction of the mounting post313, and the snap spring6is provided in the positioning groove16; the snap spring6abuts against the end surface of the friction plate7away from the third through hole23, as shown inFIG.3, and the snap spring6abuts against the upper end surface of the friction plate7; since the support bearing5is tightly mated with the rotary bracket32, the support bearing5and the rotary bracket32can be reliably locked on the mounting post313of the fixed bracket31by providing the snap spring6, and making the structural mounting of the rotation driving mechanism3more stable.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the edge of the open end of the mounting groove312may be provided with a first mounting portion17, and the driving member41may be provided with a second mounting portion43connected to the first mounting portion17, and the driving member41can be fixed on the fixed bracket31by mating the first mounting portion17and the second mounting portion43for connection and the driving member41can be prevented from falling off the fixed bracket31.

In some embodiments of the present disclosure, as shown inFIGS.3and4, the first mounting portion17may be provided with a first positioning portion18, and the second mounting portion43may be provided with a second positioning portion44connected to the first positioning portion18. The first positioning portion18can be provided as a positioning post, and the second positioning portion44can be provided as a positioning hole; when mounting the driving member41and the fixed bracket31, the positioning post is firstly inserted into the positioning hole and the relative positions of the driving member41and the fixed bracket31can be positioned; then, the driving member41and the fixed bracket31are assembled together by using a bolt and the assembly of the driving member41and the fixed bracket31is facilitated, and the assembly efficiency of the rotation driving mechanism3can be improved.

In some embodiments of the present disclosure, the rotation driving mechanism3may further comprise: a hall assembly (not shown in the figure), and the Hall assembly may comprise a Hall plate and a magnet, one of the Hall plate and magnet is provided on the fixed bracket31, and the other of the Hall plate and magnet is provided on the rotary bracket32. When the rotary bracket32needs to rotate by a specified angle with respect to the fixed bracket31, the Hall plate and the magnet can work coordinatingly to achieve the purpose of controlling the rotary bracket32to rotate by a specified angle and the rotation driving mechanism3can meet different working requirements of a user.

In some embodiments of the present disclosure, the fixed bracket31may be provided with a first limiting structure (not shown in the figure), and the rotary bracket32may be provided with a second limiting structure (not shown in the figure) coordinating with the first limiting structure in limiting. When the rotary bracket32needs to rotate the specified angle with respect to the fixed bracket31, the first limiting structure and the second limiting structure coordinate to work and the working purpose of controlling the rotary bracket32to rotate the specified angle can be achieved. Therefore, the rotation driving mechanism3can be made to meet the different working requirements of a user.

In some embodiments of the present disclosure, as shown inFIG.3, the central axis of the driving member41, the central axis of the fixed bracket31, and the central axis of the rotary bracket32are arranged to coincide. Such arrangement can further reduce the size of the rotation driving mechanism3in a direction perpendicular to the central axis, and can make the structure of the rotation driving mechanism3more compact.

As shown inFIGS.6and7, a rotation driving mechanism3according to a second specific embodiment of the present disclosure is shown. In this embodiment, differing from the first specific embodiment, the central axis of the fixed bracket31and the central axis of the rotary bracket32coincide, and the central axis of the driving member41and the central axis of the fixed bracket31do not coincide. By adjusting the position of driving member41with respect to fixed bracket31, the eccentric movement of the rotary bracket32and the driving member41is realized, which has a wider usage scenario.

According to the air supply apparatus of the embodiments of the present disclosure, including the rotation driving mechanism3of the above-mentioned embodiments, the rotation driving mechanism3is arranged on the air supply apparatus and the rotation driving mechanism3can reduce the size of the rotation driving mechanism3; after the rotation driving mechanism3is mounted on the air supply apparatus, the air supply apparatus can be more pleasing to the eye, and the rotary bracket32has no limitation with respect to the rotation angle of the fixed bracket31, and the shaking angle of the rotary component of the air supply apparatus can be enlarged.

The following describes the air supply apparatus10according to an embodiment of the present disclosure with reference toFIGS.8to14. The air supply apparatus10may be an appliance having a pitch function, such as a fan, a heater NPS-Q, etc.

As shown inFIGS.8to14, according to an air supply apparatus10of an embodiment of the present disclosure, a fan is taken as an example for illustrating the air supply apparatus10. The air supply apparatus10comprises: a first fixed seat1, a second fixed seat2, and a rotation driving mechanism3. The second fixed seat2is connected to the handpiece20of the air supply apparatus10, namely, the second fixed seat2is connected to the handpiece20of the fan. The first fixed seat1is used for supporting the rotation driving mechanism3; the rotation driving mechanism3has a fixed bracket31and a rotary bracket32, and the fixed bracket31is fixedly connected to the first fixed seat1, the rotary bracket32is fixedly connected to the second fixed seat2, the rotary bracket32is sleeved over the outer side of the fixed bracket31, and the rotation driving mechanism3further has a driving assembly4, the driving assembly4being adapted to drive the rotary bracket32to rotate around the pitch axis.

It needs to be noted that the pitch axis can be arranged in parallel with the horizontal plane. When the driving assembly4drives the rotary bracket32to rotate around the pitch axis, the second fixed seat2will rotate around the pitch axis together with the rotary bracket32and the handpiece20of the air supply apparatus10can rotate in an up-and-down direction. At that, the pitching action of the handpiece20of the fan can be achieved.

Specifically, when it is required that the handpiece20of the air supply apparatus10rotates in the up-and-down direction, the driving assembly4drives the rotary bracket32to rotate around the pitch axis. When the rotary bracket32rotates, the second fixed seat2rotates around the pitch axis. When the second fixed seat2rotates around the pitch axis, the handpiece20rotates together in the up-and-down direction, to achieve the working purpose of the pitching action of the handpiece20of the air supply apparatus10. By sleeving the rotary bracket32on the outer side of the fixed bracket31, the size of the rotation driving mechanism3can be reduced compared with the four-linkage mechanism in the prior art. After the air supply apparatus10is assembled, the size of the air supply apparatus10can be reduced and the air supply apparatus10can be made more pleasing to the eye and more delicate, and improving the market competitiveness of the air supply apparatus10.

Therefore, through the coordination of the first fixed seat1, the second fixed seat2, and the rotation driving mechanism3, the size of rotation driving mechanism3can be reduced compared with the prior art. After the air supply apparatus10is assembled, the air supply apparatus10can be made more pleasing to the eye, and improving the market competitiveness of the air supply apparatus10.

In some embodiments of the present disclosure, as shown inFIG.8, the driving assembly4may include: a driving member41and a first transmission member42, the first transmission member42being connected to the driving member41. It needs to be noted that the driving member41can be provided as a driving motor, the first transmission member42is connected to the output shaft of the driving motor, and the rotary bracket32can be provided with a second transmission member321engaging with the first transmission member42for transmission. The driving motor can provide power for the rotation of the rotary bracket32; when the driving member41works, the driving member41drives the output shaft to rotate, and the output shaft rotates with the first transmission member42; at the same time, the first transmission member42transmits power to the second transmission member321; and then the second transmission member321drives the rotary bracket32to rotate around the pitch axis, to achieve the working effect of driving the second fixed seat2to rotate with respect to the first fixed seat1.

In some embodiments of the present disclosure, as shown inFIG.8, the first transmission member42may be provided as a gear, and the second transmission member321may be provided as a rack. After the rotation driving mechanism3is mounted, the gear and the rack are engaged together. The power of the driving member41can be transmitted to the rotary bracket32through gear and rack transmission and the rotary bracket32rotates. Furthermore, through the coordinated transmission of the gear and the rack, the power can be smoothly transmitted to the rotary bracket32and the rotary bracket32smoothly rotates around the pitch axis, and therefore, the arrangement of the first transmission member42and the second transmission member321can be more reasonable, and the handpiece20of the air supply apparatus10can also rotate more smoothly.

In some embodiments of the present disclosure, as shown inFIGS.8and14, the rotation driving mechanism3may further include: a support bearing5, and the fixed bracket31may comprise a body portion311, the body portion311may define a mounting groove312, and the outer wall surface of the bottom wall of the mounting groove312may be provided with a mounting post313; the inner ring of the support bearing5is sleeved on the outer side of the mounting post313, and the outer ring of the support bearing5is connected to the rotary bracket32and the fixed bracket31and the rotary bracket32can be better assembled together. When the rotary bracket32rotates, it is ensured that the rotary bracket32rotates smoothly with respect to the fixed bracket31, and the support bearing5plays a supporting function on the rotary bracket32to prevent the rotary bracket32from shaking. It can also ensure that the rotary bracket32can rotate with respect to the fixed bracket31, and can ensure the working performance of the rotation driving mechanism3.

In some embodiments of the present disclosure, as shown inFIG.8, the rotary bracket32may define a through-hole322, the through-hole322penetrates through the rotary bracket32in the thickness direction of the rotary bracket32, and the through-hole322is sleeved on the outer side of the fixed bracket31and the support bearing5, and the working purpose of the rotary bracket32sleeved on the fixed bracket31can be achieved. The air supply apparatus10can be assembled smoothly, and the connection of the rotary bracket32to the outer ring of the support bearing5can also be facilitated.

In some embodiments of the present disclosure, as shown inFIG.8, the inner wall surface of the through-hole322may be provided with an annular boss323, and the inner wall surface of the annular boss323may be provided with a second transmission member321, i.e., the inner wall surface of the annular boss323may be provided with a rack, and the rack may be arranged to extend along the thickness direction of the rotary bracket32. Such arrangement ensures that the second transmission member321may engage with the first transmission member42and that the driving member41may drive the rotary bracket32to rotate.

In some embodiments of the present disclosure, as shown inFIGS.8,10, and14, the inner wall surface of the through-hole322is provided with a stopper boss326, the stopper boss326is located between the annular boss323and the support bearing5, and the stopper boss326abuts the support bearing5. After the rotation driving mechanism3is assembled, the stopper boss326abuts the support bearing5, and the support bearing5can limit the stopper boss326and prevent the rotary bracket32from separating from the fixed bracket31. Therefore, the assembly reliability of the rotation driving mechanism3can be ensured, and therefore, the working reliability of the rotation driving mechanism3can be ensured.

In some embodiments of the present disclosure, as shown inFIG.8, the rotation driving mechanism3may further include: a snap spring6, and the snap spring6is sleeved on the outer side of the mounting post313, and the snap spring6is located at the end of the support bearing5away from the fixed bracket31. The circumferential wall surface of the mounting post313may be provided with a positioning groove, the positioning groove is arranged along the circumferential direction of the mounting post313, the snap spring6is provided in the positioning groove, and the snap spring6abuts one end of the support bearing5away from the fixed bracket31. By providing the snap spring6, the support bearing5and the rotary bracket32can be reliably mounted on the rotary bracket32, and the structural mounting of the rotation driving mechanism3can be made more reliable.

In some embodiments of the present disclosure, as shown inFIGS.13and14, the rotation driving mechanism3may further include: a bearing inner ring stop51, and the bearing inner ring stop51may be provided on the fixed bracket31, and the bearing inner ring stop51is located at one end of the support bearing5away from the fixed bracket31. The bearing inner ring stop51can be connected to the fixed bracket31via a bolt. After the mounting of the rotation driving mechanism3is completed, the bearing inner ring stop51abuts one end of the support bearing5away from the fixed bracket31and the support bearing5can be reliably mounted on the fixed bracket31, and the support bearing5can be prevented from falling off the mounting post313.

In some embodiments of the present disclosure, as shown inFIGS.13and14, the rotation driving mechanism3may further include: a bearing outer ring stop52, and bearing outer ring stop52may be provided on the rotary bracket32and the bearing outer ring stop52is located at one end of the support bearing5away from the fixed bracket31. The bearing outer ring stop52can be connected to the rotary bracket32via a bolt. After the rotation driving mechanism3is mounted, the bearing outer ring stop52abuts one end of the support bearing5away from the fixed bracket31, which can further prevent the support bearing5from falling off the mounting post313and the support bearing5can be reliably mounted on the fixed bracket31. Further, the support bearing5can be reliably supported between the fixed bracket31and the rotary bracket32.

In some embodiments of the present disclosure, as shown inFIG.8, the rotation driving mechanism3may further comprise: an annular friction plate7, the friction plate7being made of wear-resistant and easy-to-wear materials. The body portion311is sleeved on the outer side of the friction plate7, and the friction plate7is sleeved on the outer side of the rotary bracket32. By providing the friction plate7, it is possible to control the gap between the fixed bracket31and the rotary bracket32, it is possible to make the structure of the rotation driving mechanism3more stable, and it is also possible to ensure that the rotary bracket32is rotatable with respect to the fixed bracket31. The friction plate7can provide a lubricating effect when the rotary bracket32rotates, and facilitating the rotation of the rotary bracket32and reducing the rotational noise of the rotary bracket32.

It needs to be noted that the rotation driving mechanism3of the first embodiment of the present disclosure differs from the rotation driving mechanism3of the second embodiment of the present disclosure in that the friction plate7is not provided in the rotation driving mechanism3of the second embodiment. The rotation driving mechanism3of the first embodiment limits the support bearing5via the snap spring6, and the rotation driving mechanism3of the second embodiment limits the support bearing5via the bearing outer ring stop52and the bearing inner ring stop51.

In some embodiments of the present disclosure, as shown inFIG.14, the side wall of the mounting groove312may have a first through hole314, the first through hole314being in communication with the mounting groove312. Both the driving member41and the first transmission member42may be located in the mounting groove312, and part of the structure of the first transmission member42passes through the first through hole314and then drivingly mates with the second transmission member321. A part of the structure of the first transmission member42is located in the mounting groove312, and another part of the structure of the first transmission member42is engaged with the second transmission member321after extending out of the first through hole314and the first transmission member42and the second transmission member321drivingly engage to coordinate. At that, the power transmission from the driving member41to the rotary bracket32can be ensured, and the size of the rotation driving mechanism3can be further reduced compared with the prior art. In addition, the gear and the rack have high transmission accuracy and can precisely control the pitch angle of a handpiece20of a fan.

In some embodiments of the present disclosure, as shown inFIGS.8and14, the rotation driving mechanism3may further include: a damper8, and the side wall of the mounting groove312may have a second through hole315, and the damper8may be arranged in the mounting groove312, and a part of the structure of the damper8passes through the second through hole315and then drivingly mates with the second transmission member321. A part of the structure of the damper8is located in the mounting groove312, and another part of the structure of the damper8extends out of the second through hole315and then engages with the second transmission member321; the damper8has a buffering function; during the rotation of the rotary bracket32, the rotary bracket32can be kept rotating stably by the damper8drivingly engaging with the second transmission member321; when the rotary bracket32is forced to rotate driven by an external force, the rotation driving mechanism3can be prevented from being damaged. It needs to be noted that dampers8with different specification structures can be used according to actual conditions.

In some embodiments of the present disclosure, as shown inFIG.13, the rotation driving mechanism3further includes: a Hall assembly9, and the Hall assembly9may comprise a Hall plate91and a magnet92, one of the Hall plate91and the magnet92being provided at the fixed bracket31, and the other of the Hall plate91and the magnet92being provided on the rotary bracket32. When the rotary bracket32needs to rotate by a specified angle with respect to the fixed bracket31, through the coordination of the Hall plate91and the magnet92, the working purpose of controlling the rotary bracket32to rotate around the pitch axis by a specified angle can be achieved, and the pitch angle of the rotation of the handpiece20of the fan can be controlled, and then the air supply apparatus10can meet the requirements of different air supply angles of a user.

In some embodiments of the present disclosure, the depression angle of the rotary bracket32may be set to A, meeting the relational expression: −10°≤A≤0°, and the elevation angle of rotary bracket32may be set as B, meeting the relational expression: 0°≤B≤90°. Such setting can enable handpiece20of a fan to have a pitch angle of 100° in the up and down direction, and can enable handpiece20to have sufficient air supply area in the up and down direction and the air supply apparatus10can meet the air supply requirement of a user.

In some embodiments of the present disclosure, as shown inFIGS.8and10, the air supply apparatus10may further include: a damping mechanism93, and the damping mechanism93may be arranged on the fixed bracket31, and the damping mechanism93is pivotably connected to the rotary bracket32, i.e. the damping mechanism93is connected to the rotary bracket32, and the rotary bracket32is pivotable with respect to the damping mechanism93. The damping mechanism93is made of a wear-resistant material, and damping oil is added in a groove of the damping mechanism93; after the assembly of the air supply apparatus10is completed, when the rotary bracket32rotates around a pivot axis, the damping mechanism93can play a damping effect, and can better keep the stable rotation of the rotary bracket32; when the rotary bracket32is forced to rotate under the driving of an external force, the rotation driving mechanism3can be better prevented from being damaged, and at the same time, the damping mechanism93can play a supporting role on the rotary bracket32, and can prevent the rotary bracket32from shaking. It needs to be noted that the damping mechanism93can use a damper with different specification structures according to actual conditions.

In some embodiments of the present disclosure, as shown inFIG.8, the rotary bracket32may have a damping mechanism connection structure324. The damping mechanism connection structure324is sleeved on the damping mechanism93and the overall structure of the second fixed seat2and rotation driving mechanism3is more compact.

In some embodiments of the present disclosure, as shown inFIG.8, the damping mechanism connection structure324may have a first routing channel325, and the damping mechanism93may have a second routing channel94in communication with the first routing channel325. A wiring harness connecting the driving motor may pass through the first routing channel325and the second routing channel94and then connect with the driving motor and the wiring of the air supply apparatus10may be more convenient. Further, the structural arrangement of the damping mechanism connection structure324and the damping mechanism93may be reasonable.

A household appliance100proposed according to some embodiments of the present disclosure will be described below with reference toFIGS.15to23.

As shown inFIGS.15and20to23, according to one embodiment of the present disclosure, the present disclosure proposes a household appliance100, including: a first fixed seat1, a second fixed seat2, and a rotation driving mechanism3.

Specifically, the rotation driving mechanism3comprises a fixed bracket31and a rotary bracket32. The fixed bracket31is connected to the second fixed seat2, and the rotary bracket32is connected to the first fixed seat1; among other things, the rotary bracket32is adapted to rotate around the fixed bracket31to link the first fixed seat1to rotate around the second fixed seat2.

The household appliance100provided by the present disclosure comprises a second fixed seat2, a first fixed seat1, and a rotation driving mechanism3. The second fixed seat2and the first fixed seat1are connected via the rotation driving mechanism3, and the rotation driving mechanism3can drive the first fixed seat1to rotate to realize the automatic adjustment of the pitch angle of the first fixed seat1. Specifically, the rotation driving mechanism3comprises a fixed bracket31and a rotary bracket32. The fixed bracket31is connected to the second fixed seat2, the rotary bracket32is connected to the first fixed seat1, and the rotary bracket32is adapted to rotate around the fixed bracket31. Therefore, the first fixed seat1can be driven to rotate around the fixed bracket31, that is, the first fixed seat1can be driven to rotate around the second fixed seat2, to realize the rotation of the first fixed seat1and the components connected thereto in the household appliance100.

Specifically, a rotation driving mechanism3is provided between the second fixed seat2and the first fixed seat1, and the first fixed seat1is driven to rotate by the rotation driving mechanism3, to achieve the automatic adjustment of the pitch angle of the first fixed seat1and the components thereon. Specifically, the second fixed seat2and the first fixed seat1are connected by means of the rotation driving mechanism3. In the rotary rotation driving mechanism3, the rotary bracket32can rotate around the circumference of the fixed bracket31, and the structure is simple and reliable, and making the household appliance100more reliable.

Specifically, The axis around which the rotary bracket32rotates around the fixed bracket31is perpendicular to the length direction of the second fixed seat2. For example, when the first fixed seat1is fixed on a plane or aground, the axis around which the rotary bracket32rotates is set in the horizontal direction, Therefore, the first fixed seat1can be enabled to rotate to the upward side of the household appliance100, or to the downward side of the household appliance100, that is, the adjustment of the pitch angle of the first fixed seat1is realized.

Specifically, the first fixed seat1has at least one supporting point.

Specifically, as shown inFIGS.20and21, the portion of the rotary bracket32connected to the first fixed seat1supports the first fixed seat1and the first fixed seat1rotates with the rotation of the rotary bracket32by taking the supporting point as the center, that is, the first fixed seat1can be connected to the second fixed seat2through a single arm. Furthermore, the first fixed seat1further comprises a support portion, and the support portion is rotatably connected to the second fixed seat2, and the support portion coincides with the axis about which the second fixed seat2rotates and the axis about which the rotary bracket32rotates around the fixed bracket31; that is to say, the first fixed seat1can also be connected to the second fixed seat2via a two-arm form.

Specifically, as shown inFIG.16, the second fixed seat2and the first fixed seat1are connected to the rotary bracket32via the fixed bracket31, and the rotary bracket32rotates around the fixed bracket31and the first fixed seat1rotates around the second fixed seat2, and achieving the automatic adjustment of the pitch angle of the first fixed seat1. Shown inFIGS.17and18are a left side view and a top view of the household appliance100.FIG.19is a top view of the household appliance100. It can be seen fromFIGS.17to19that the structure is simple and the occupied size is smaller.

As shown inFIGS.22and23, according to one embodiment of the present disclosure, the features defined by the embodiments described above are included, and further: the household appliance100further includes: a first damping frame112connected to the first fixed seat1, and a second damping frame114connected to the fixed bracket31, and the second damping frame114is sleeved on the first damping frame112, and the first damping frame112is adapted to rotate around the second damping frame114.

In this embodiment, the household appliance100further comprises a first damping frame112and a second damping frame114. The first damping frame112is connected to the first fixed seat1, and the second damping frame is connected to the fixed bracket31. Therefore, the first fixed seat1can be supported by the first damping frame112and the second damping frame114, and the reliability of the mounting of the first fixed seat1is improved. The second damping frame114is sleeved on the first damping frame112, and the first damping frame112can rotate around the second damping frame114and the first fixed seat1can rotate around the second fixed seat2under the driving of the rotary bracket32.

It could be understood that the axis around which the first damping frame112rotates around the second damping frame114coincides with the axis around which the rotary bracket32rotates around the fixed bracket31.

Specifically, the coordination of the first damping frame112and the second damping frame114serves as a support for the first fixed seat1, that is, the first fixed seat1can rotate by taking the first damping frame112and the second damping frame114as supporting points.

Specifically, as shown inFIGS.22and23, the first fixed seat1has two supporting points. One supporting point is composed of a portion of the first fixed seat1connected to the rotary bracket32, and the other supporting point is composed of a portion of the first fixed seat1connected to the first damping frame112.

Further, the first damping frame112and the second damping frame114are located at one end of the fixed bracket31, and the portion of the rotary bracket32connected to the first fixed seat1is located at the other end of the fixed bracket31, namely, in the direction of the axis around which the rotary bracket32rotates. The two supporting points of the first fixed seat1are located at both ends of the rotation driving mechanism3, and improving the supporting effect on the first fixed seat1and ensuring the reliability of the household appliance100.

Further, damping fluid is provided between the first damping frame112and the second damping frame114.

In this embodiment, damping fluid is provided between the first damping frame112and the second damping frame114to provide a damping force as the first damping frame112rotates around the second damping frame114, ensuring the stability of the household appliance100.

It could be understood that the second damping frame114is sleeved on the first damping frame112, i.e. the inner side wall of the second damping frame114is sleeved outside the outer side wall of the first damping frame112. Damping fluid is provided between the first damping frame112and the second damping frame114, i.e. the damping fluid is provided between the outer side wall of the first damping frame112and the inner side wall of the second damping frame114and the damping fluid provides a damping force when the first damping frame112and the second damping frame114perform a rotational movement.

Specifically, a groove is provided on the first damping frame112and/or the second damping frame114, and damping fluid is provided in the groove. It could be understood that damping fluid is a liquid capable of generating a damping force, and capable of damping the kinetic energy of a moving machine by virtue of the viscous drag of the liquid medium. Specifically, the damping fluid includes a viscous liquid, such as oily liquid and the like, depending on the specific usage condition.

According to one embodiment of the present disclosure, a feature defined in any of the above embodiments is included, and further: the rotation angle of the first fixed seat1is greater than 0° and less than or equal to 200°.

In this embodiment, the rotation angle of the first fixed seat1is greater than or equal to 0° and less than or equal to 200°. Specifically, the elevation angle of the rotation of the first fixed seat1is greater than or equal to 0° and less than or equal to 90°, and the depression angle of the first fixed seat1is greater than or equal to 0° and less than or equal to 10°, and the elevation angle of the first fixed seat1is the angle of the rotation of the first fixed seat1from a horizontal position to an upward side, and the depression angle of the first fixed seat1is the angle of the rotation of the first fixed seat1from a horizontal position to a downward side.

According to one embodiment of the present disclosure, the features as defined in any of the above embodiments are included, and further: in any of the above embodiments, further, the household appliance100further comprises: a Hall plate91arranged on the second fixed seat2, and the first fixed seat1is further provided with a magnetic member, and the Hall plate91is connected to the magnetic member.

In this embodiment, the Hall plate91is provided on the second fixed seat2, and a magnetic member is provided on the first fixed seat1. The movement of the first fixed seat1at any angle can be realized through the coordination between the Hall plate91and the magnetic member, namely, the coordination between the Hall plate91and the magnetic member can enable the first fixed seat1to rotate any specified angle around the second fixed seat2. For example, the first fixed seat1is required to rotate any specified angle around the second fixed seat2by 30° or 60° or 90°, etc. from an initial position.

Specifically, the Hall plate91is an component with the Hall effect.

According to one embodiment of the present disclosure, the features defined in any of the above embodiments are included, and further: the second fixed seat2is provided with a hollow portion, the hollow portion is provided corresponding to the first damping frame112, the household appliance100further comprises a connecting wire, and the connecting wire is adapted to be connected to the second fixed seat2by passing through the hollow portion from the first fixed seat1.

In this embodiment, the second fixed seat2is provided with a hollow portion, and the household appliance100further comprises a connecting wire. The connecting wire can pass through the hollow portion, namely, the connecting wire can pass through the hollow portion to connect to the first fixed seat1and other components thereon and the wiring of the household appliance100is more reliable.

According to one embodiment of the present disclosure, the features defined in any of the above embodiments are included, and further: the rotation driving mechanism3further includes: a driving member41, and the driving member41and the fixed bracket31are connected; and a first transmission member42, and the first transmission member42is connected to the driving member41and the rotary bracket32, respectively, the driving member41being adapted to drive the first transmission member42to rotate to link the rotary bracket32to rotate.

In this embodiment, the driving member41drives the first transmission member42to rotate and the first transmission member42drives the rotary bracket32to rotate; it could be understood that the first transmission member42rotates to link the rotary bracket32to rotate, namely, the driving member41drives the first transmission member42to rotate; since the first transmission member42is connected to the rotary bracket32, the first transmission member42can drive the rotary bracket32to move, namely, the first transmission member42rotation links the rotary bracket32to rotate.

Specifically, the driving member41comprises a motor, and the motor may be a synchronous motor or a stepping motor.

According to one embodiment of the present disclosure, the features defined by the embodiments described above are included, and further: the fixed bracket31includes: a body portion, and the body portion is connected with the driving member41and the second fixed seat2; and a mounting post connected to the body portion, and the rotary bracket32is sleeved on the mounting post, and the rotary bracket32is adapted to rotate about the mounting post.

In this embodiment, the fixed bracket31comprises a body portion and a mounting post, and the driving member41is fixed on the body portion. Meanwhile, the rotation driving mechanism3can also be fixed on other apparatuses via the body portion. The mounting post is provided on the body portion, and the rotary bracket32is sleeved on the mounting post, to realize the rotation of the rotary bracket32around the mounting post, and improve the reliability of the connection between the fixed bracket31and the rotary bracket32.

Specifically, the rotary bracket32can rotate circumferentially around the fixed bracket31. Sleeving the rotary bracket32on the mounting post of the fixed bracket31can reduce the size of the rotation driving mechanism3.

Further, the body portion has a mounting groove312, and the first transmission member42is provided on the mounting groove312; a first through hole is provided on the wall surface of the mounting groove312, the first through hole penetrates through the wall surface of the mounting groove312, and the first transmission member42is connected to the rotary bracket32via the first through hole.

In this embodiment, the body portion has a mounting groove312with the first transmission member42provided within the mounting groove312to avoid the exposure of the first transmission member42to the outer side which affects the aesthetics of the rotation driving mechanism3. The first transmission member42is provided in the mounting groove312, and in order to realize the connection between the first transmission member42and the rotary bracket32, a first through hole is provided in the wall surface of the mounting groove312. This allows the first transmission member42to be connected to the rotary bracket32via the first through hole. It could be understood that the first through hole is a through hole penetrating through the wall surface of the mounting groove312.

Specifically, the rotary bracket32is sleeved on the outer side of the mounting groove312.

According to one embodiment of the present disclosure, the features defined by the embodiments described above are included, and further: the rotary bracket32includes: a connection portion, and the connection portion is sleeved on the mounting post, and one end of the connection portion away from the driving member41is connected to the first fixed seat1; and a second transmission member321connected to the connection portion, and the first transmission member42is connected to the second transmission member321, and the first transmission member42is adapted to drive the second transmission member321to rotate to link the connection portion to rotate.

In this embodiment, the rotary bracket32comprises a connection portion and a second transmission member321which are connected. The connection portion is sleeved on the mounting post, the second transmission member321is connected to the first transmission member42, the driving member41drives the first transmission member42to rotate, and the first transmission member42drives the second transmission member321to rotate and the connection portion connected to the second transmission member321rotates around the mounting post, i.e. the rotary bracket32rotates around the fixed bracket31.

Specifically, the connection portion and the second transmission member321are of an integrated structure.

Specifically, the first transmission member42is connected to the second transmission member321via the first through hole.

According to one embodiment of the present disclosure, the features defined by the embodiments described above are included, and further: the household appliance100further includes: a damper8connected to the body portion and provided on the mounting groove312, the damper8including a third rotational member; and the second through hole is provided on the wall surface of the mounting groove312, the second through hole penetrates through the wall surface of the mounting groove312, and the third rotational member is connected to the second transmission member321via the second through hole.

In this embodiment, the household appliance100further includes a damper8. The damper8is mounted on the body portion and housed in the mounting groove312. The damper8comprises a third rotational member, and the third rotational member is connected to the second transmission member321. When the rotation driving mechanism3works, the driving member41drives the first transmission member42to rotate, the first transmission member42drives the second transmission member321to rotate, and the second transmission member321drives the third rotational member to rotate. When the third rotational member rotates, a damping effect can be generated. That is to say, the kinetic energy of the rotation of the second transmission member321is consumed when the third rotational member rotates and the kinetic energy of the rotation of the second transmission member321is attenuated, and forming a damping effect. The damper8ensures the stability of the rotation driving mechanism3during working, and at the same time, when the rotary bracket32is forcedly driven by an external force, the reliability of the rotation driving mechanism3can be ensured by the damping effect of the damper8.

Specifically, the damper8further comprises a fixed seat and a limiting seat, and the limiting seat is provided on the fixed seat, the third rotational member is sleeved on the limiting seat, and the third rotational member and the limiting seat are adapted to accommodate damping fluid therebetween.

Specifically, the damper8comprises a fixed seat and a limiting seat. The fixed seat is used for mounting the damper8on the body portion, the limiting seat is mounted on the fixed seat, and the third rotational member is sleeved on the limiting seat to mount the third rotational member on the fixed seat. The third rotational member can rotate around the limiting seat, and damping fluid is accommodated between the third rotational member and the limiting seat. When the third rotational member rotates, it can drive the damping fluid between the third rotational member and the limiting seat to have a certain position change to generate energy consumption to generate resistance to the movement of the third rotational member and form a damping effect.

It could be understood that damping fluid is a liquid capable of generating a damping force, and capable of damping the kinetic energy of a moving machine by virtue of the viscous drag of the liquid medium. Specifically, the damping fluid includes a viscous liquid, such as oily liquid and the like, depending on the specific usage condition.

Of course, the damper8may be another mechanism capable of forming a damping effect.

Further, each of the first transmission member42, the second transmission member321, and the third rotational member comprises a gear structure, and the first transmission member42and the second transmission member321are drivingly engaged through a gear structure, and the second transmission member321and the third rotational member are drivingly engaged through a gear structure.

In this embodiment, the first transmission member42, the second transmission member321, and the third rotational member all comprise a gear structure, and the first transmission member42and the second transmission member321are connected via the gear structure to realize a gear transmission and improve the reliability of the connection therebetween. The second transmission member321and the third rotational member are connected via the gear structure to realize a gear transmission and improve the reliability of the connection therebetween.

Specifically, the first transmission member42is an outer gear, the second transmission member321is an inner gear, and the third rotational member is an outer gear. That is to say, the first transmission member42and the second transmission member321are both located in the second transmission member321and are connected to the third rotational member. The rotation of the first transmission member42can drive the rotation of the second transmission member321, and the rotation of the third rotational member can have a damping effect on the rotation of the second transmission member321.

According to one embodiment of the present disclosure, the features defined by the embodiments described above are included, and further: the driving member41comprises a rotor and an output shaft connected to the rotor, and the output shaft is connected to the first transmission member42. The rotation axis of the rotor, the axis of the mounting post, and the axis around which the rotary bracket32rotates are arranged coaxially, or the rotation axis of the rotor and the axis of the mounting post do not coincide.

In this embodiment, the driving member41comprises an output shaft and a rotor, and the rotor rotates to drive the output shaft to rotate and the first connecting member is driven to rotate via the output shaft. The axis rotated by the rotor, the axis of the mounting post, and the axis around which the rotary bracket32rotates are arranged coaxially and the space occupied by the rotation driving mechanism3is reduced. Alternatively, the axis around which the rotor rotates and the axis of the mounting post do not coincide, i.e. the rotary bracket32moves eccentrically with respect to the driving member41, and the rotation driving mechanism3can be applied to different apparatuses depending on the actual situation.

According to one embodiment of the present disclosure, the features defined in any one of the above embodiments are included, and further: the household appliance100further includes: a support bearing5provided between the rotary bracket32and the mounting post; a limiting member along the direction of the axis about which the rotary bracket32rotates, the limiting member being located at one end of the rotary bracket32away from the driving member41; a friction plate7, along the direction of the axis about which the rotary bracket32rotates, the friction plate7being arranged between the rotary bracket32and the limiting member; and a limiting structure connected to the fixed bracket31, the limiting structure being adapted to limit the rotation angle of the rotary bracket32.

In this embodiment, the household appliance100further comprises a support bearing5. The support bearing5is mounted inside the rotary bracket32and nested on the mounting post for connecting the rotary bracket32and the mounting post; the household appliance100further comprises a limiting member, and the limiting member is arranged on the rotary bracket32and is located at one end of the rotary bracket32away from the driving member41; at the same time, the limiting member is clamped on the fixed bracket31, and defining the support bearing5on the mounting post; the household appliance100further comprises a friction plate7mounted between the rotary bracket32and the limiting member and being made of a wear-resistant and easy-to-wear material, which can achieve the control of the gap between the rotary bracket32and the fixed bracket31and stabilize the rotation driving mechanism3; at the same time, the friction plate7has a lubricating effect when the rotary bracket32rotates. The fixed bracket31is further provided with a limiting structure thereon, and the limiting structure can limit the rotary bracket32to fix the rotated rotary bracket32after rotation in a specified position.

Specifically, the limiting member is a snap spring. Specifically, the friction plate7is a gasket made of a wear-resistant material, and further, the friction plate7is an elastic cushion.

Further, the household appliance100includes any one of the fan, air conditioner, and heater.

In this embodiment, the household appliance100comprises any one of the fan, air conditioner, or heater. Specifically, when the household appliance100is a fan, the mounting portion is a support structure, the rotational portion is a fan head, and the axis around which the rotary bracket32rotates in the rotation driving mechanism3is perpendicular to the length direction of the support structure and the fan head can rotate up and down, namely, the adjustment of the pitch angle of the fan head is realized.

Specifically, when a household air conditioner comprises a heater, the heater comprises a head portion and a support portion. The head portion is provided with a heat-dissipating structure, the head portion and the support portion are connected via the rotation driving mechanism3, and the rotation axis of the rotary bracket32can be arranged perpendicular to the length direction of the support portion, and achieving the adjustment of the pitch angle of the heater.

As shown inFIGS.15to23, according to one specific embodiment of the present disclosure, a household appliance100comprises a second fixed seat2, a first fixed seat1, and a rotation driving mechanism3, the first fixed seat1being used for fixing an appliance such as a fan head of a fan. The first fixed seat1is used for supporting and mounting the rotation driving mechanism3, and the second fixed seat2, the first fixed seat1and the rotation driving mechanism3are supported via a fulcrum; the single-arm uses one fulcrum (the supporting point formed by the portion of the rotary bracket32connected with the first fixed seat1), the two-arm uses two fulcrums (the supporting point formed by the portion of the rotary bracket32connected with the first fixed seat1, and the supporting point formed by the first fixed seat1, the first damping frame112, and the second damping frame114), and by centering on the fulcrum, first fixed seat1rotates with the operation of driving member41(motor) in rotation driving mechanism3.

The maximum depression angle is designed to be −10°, and the maximum elevation angle is designed to be 90°. According to the need, the pitch angle (the other side) can be adjusted from −10° to 90°, and the pitch angle ranges from 0° to 200°. Further, if the Hall plate is added, any angle adjustment from −10° to 90° and 90° to −10° can be realized.

As shown inFIG.20, a single-arm household appliance100capable of realizing an automatic pitch function is shown, including a second fixed seat2, a first fixed seat1, and a rotation driving mechanism3, and the exploded view is as shown inFIG.21, specifically comprising:the second fixed seat2used to fix the appliance and, at the same time, fix the fixed bracket31in rotation driving mechanism3;the first fixed seat1used to fix and support the rotation driving mechanism3, and rotate by taking a fulcrum as the center under the driving of the rotation driving mechanism3;a fixed bracket31: support and fix rotation driving mechanism3, in which the driving motor, the driving gear, and the damper are mounted in it;a driving motor: used to provide the driving force for rotation and transmit power to the rotary bracket32through the driving gear;a driving gear: fixed on the driving motor, and coordinating with the internal gear of the rotary bracket32to realize power transmission;a damper8: fixed in the fixed bracket31and coordinating with the internal gear of the rotary bracket32to ensure the stability during the movement or the reliability of the rotation driving mechanism3when forced to be driven by an external force;a rotary bracket32: fixed on the first fixed seat1, and under the action of the driving motor, the first fixed seat1is linked to achieve rotation;a friction plate7: mounted between the rotary bracket32and the fixed bracket31and made of a wear-resistant and easy-to-wear material, and it firstly achieves the control of the gap between the rotary bracket32and the fixed bracket31to stabilize the rotation driving mechanism3, and secondly, the friction plate7provides a lubricating effect when the rotary bracket32rotates;a support bearing5: nested on the mounting post of fixed bracket31and outer sleeved in rotary bracket32, to ensure the relative rotation between the two;a snap spring: fixing the support bearing5on the mounting post of the fixed bracket31; anda Hall plate91: implementing any angle control on a program.

The working principle of the household appliance100proposed in the present disclosure is that: when the driving motor moves, power is transmitted to the rotary bracket32by driving the gear, and the rotary bracket32, together with the first fixed seat1, rotates by taking the fulcrum as the center.

As shown inFIG.22, a two-arm household appliance100capable of realizing an automatic pitch function is shown, including a second fixed seat2, a first fixed seat1, and a rotation driving mechanism3, and the exploded view is as shown inFIG.9, specifically comprising:the second fixed seat2used to fix the appliance and, at the same time, fix the fixed bracket31in rotation driving mechanism3;the first fixed seat1used to fix and support the rotation driving mechanism3, and rotate by taking a fulcrum as the center under the driving of the rotation driving mechanism3;a fixed bracket31: support and fix rotation driving mechanism3, in which the driving motor, the driving gear, and the damper are mounted in it;a driving motor: used to provide the driving force for rotation and transmit power to the rotary bracket32through the driving gear;a driving gear: fixed on the driving motor, and coordinating with the internal gear of the rotary bracket32to realize power transmission;a damper8: fixed in the fixed bracket31and coordinating with the internal gear of the rotary bracket32to ensure the stability during the movement or the reliability of the rotation driving mechanism3when forced to be driven by an external force;a rotary bracket32: fixed on the first fixed seat1, and under the action of the driving motor, the first fixed seat1is linked to achieve rotation;a friction plate7: mounted between the rotary bracket32and the fixed bracket31and made of a wear-resistant and easy-to-wear material, and it firstly achieves the control of the gap between the rotary bracket32and the fixed bracket31to stabilize the rotation driving mechanism3, and secondly, the friction plate7provides a lubricating effect when the rotary bracket32rotates;a support bearing5: nested on the mounting post of fixed bracket31and outer sleeved in rotary bracket32, to ensure the relative rotation between the two;a snap spring: fixing the support bearing5on the mounting post of the fixed bracket31;a Hall plate91: implementing any angle control on a program;a first damping frame112: made of wear-resistant material and fixed on the first fixed seat1, and coordinating with second damping frame114to achieve the supporting and damping effects; anda second damping frame114: made of wear-resistant material and fixed on the fixed bracket31, and damping oil is added in the groove to coordinate with the first damping frame112to achieve the supporting and damping effects.

The working principle of the household appliance100proposed in the present disclosure is that: when the driving motor moves, power is transmitted to the rotary bracket32by driving the gear, and the rotary bracket32, together with the first fixed seat1, rotates by taking the fulcrum as the center.

The wiring at the joint is on the side of the first damping frame112, and the middle of the left side of the movable joint of the first fixed seat1is hollowed out, which is convenient and reliable for wiring. This design uses the joint movement mode to add a friction plate7and a damper8. The adjustment of the pitch angle of the appliance is skillfully realized through modular assemblies such as the rotation driving mechanism3and the mechanism is stable and reliable, and the mounting is simple. By adjusting the power of the driving motor, the structure is optimized according to the product, which can be used for most apparatuses with automatic adjusting movement.

In the present disclosure, the term “multiple” refers to two or more unless explicitly defined otherwise. Terms “mounted”, “connected”, “connect”, “fixed”, and the like are to be construed broadly. For example, “connect” may be a fixed connection, a detachable connection, or an integral connection; “connected” can be either directly connected or indirectly connected through an intermediary. The specific meaning of the above-mentioned terms in the present disclosure can be understood according to specific situations.

In the specification of the present disclosure, the description of “one embodiment”, “some embodiments”, “specific embodiments”, etc. mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In the specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific feature, structure, material, or characteristic described may be combined in any suitable manner in any one or more embodiments or examples.