CN110778512A - Fan oscillating mechanism and control method - Google Patents
Fan oscillating mechanism and control method Download PDFInfo
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- CN110778512A CN110778512A CN201911088667.0A CN201911088667A CN110778512A CN 110778512 A CN110778512 A CN 110778512A CN 201911088667 A CN201911088667 A CN 201911088667A CN 110778512 A CN110778512 A CN 110778512A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004091 panning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan oscillating mechanism and a control method, wherein the fan oscillating mechanism comprises: a rotation layer which drives the fan to rotate; a fixing layer located at the bottom layer of the fan; the rotating layer and the fixed layer are coaxially arranged, a transmission assembly is arranged in the rotating layer, and at least one group of control assembly and supporting assembly are arranged between the rotating layer and the fixed layer. The fan head shaking mechanism and the control method solve the problem that the fan with the head shaking function shakes head to fail at the angle limit position, and improve the head shaking centering precision.
Description
Technical Field
The invention relates to the field of bladeless fans, in particular to a fan oscillating mechanism and a control method.
Background
The fan with the function of shaking the head, under the state that the function of shaking the head is not opened, the user can be in the angle range of shaking the head self adjustment fan orientation. This makes it impossible to determine the state and angle of the oscillating mechanism when the oscillating function is turned on.
The existing fan with the head shaking function has a single structure and a simple function. When the oscillating mechanism rotates to the limit position at the fan, the fan has the phenomenon of failure of the oscillating function, and the user experience is seriously influenced. The existing fan with the oscillating function also has a structural design with large angle and high precision, but has extremely high cost and is inconvenient to popularize.
In view of the above, it is necessary to develop a fan oscillating mechanism and a control method thereof to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a fan oscillating mechanism and a control method, wherein the fan oscillating mechanism drives a fan to rotate through a rotating layer; a fixing layer located at the bottom layer of the fan; wherein, rotate the layer with the coaxial setting of fixed bed, it is equipped with drive assembly to rotate the in situ, it is equipped with at least a set of control assembly and supporting component to rotate between layer and the fixed bed for when opening the function of shaking the head, the angle at mechanism state and place of shaking the head can be confirmed, has solved and has shaken the head failure phenomenon at angle extreme position of function fan of shaking the head, and improves and shakes the head centering precision.
To achieve the above objects and other advantages in accordance with the present invention, a head oscillating mechanism for a fan and a control method thereof, includes:
a rotation layer which drives the fan to rotate;
a fixing layer located at the bottom layer of the fan;
the rotating layer and the fixed layer are coaxially arranged, a transmission assembly is arranged in the rotating layer, and at least one group of control assembly and supporting assembly are arranged between the rotating layer and the fixed layer.
Preferably, the transmission assembly further comprises a stepping motor and a gear set;
the gear set comprises a large gear and a small gear, the stepping motor is installed on the small gear, and the large gear is installed on a rotating shaft of the rotating layer.
Preferably, the control assembly comprises;
a central hall element which is collinear with the stepping motor and the rotating shaft;
an edge hall element with the axis of rotation as the center, at a single side 1/2 maximum angle of rotation.
Preferably, hall magnets are disposed below the center hall element and the edge hall element, respectively.
Preferably, the support assembly comprises a planar bearing and a bearing seat;
the plane bearing is arranged on the lower end face of the rotating layer, and the bearing seat is arranged on the upper end face of the fixed layer.
Furthermore, the present application also discloses a method for controlling the oscillating mechanism of the fan by using any one of the above mentioned mechanisms, wherein the method for controlling the oscillating mechanism of the fan comprises the following steps:
step S1, starting the transmission assembly to drive the rotation layer to drive the fan to rotate;
step S2, the transmission component rotates for 1500 steps;
step S3, whether the central Hall of the control assembly detects a magnetic signal;
step S4, the central Hall of the control assembly detects a magnetic signal or the control assembly does not detect a magnetic signal;
step S5, the central Hall element of the control assembly detects a magnetic signal, and the transmission assembly continues to rotate for 1000 steps; the center Hall element of the control assembly does not detect a magnetic signal, and the edge Hall element of the control assembly detects a magnetic signal;
and step S6, executing a circulating program to realize the control and use of the oscillating mechanism of the fan.
Preferably, the cyclic procedure comprises the steps of:
step P1, the stepping motor is rotated reversely;
step P2, the step motor rotates in reverse direction for 1500 steps;
a step P3, in which the central hall element detects a magnetic signal;
step P4, the step motor continues to rotate for 1500 steps;
step P5, the stepping motor is reversed again;
step P6, the step motor continues to rotate for 1500 steps;
a step P7, in which the central hall element detects a magnetic signal;
step P8, the step motor continues to rotate for 1000 steps;
and step P9, repeating the steps P1-P8 to realize the oscillating motion of the oscillating mechanism of the fan.
Compared with the prior art, the invention has the beneficial effects that: the rotating layer drives the fan to rotate; a fixing layer located at the bottom layer of the fan; wherein, rotate the layer with the coaxial setting of fixed bed, it is equipped with drive assembly to rotate the in situ, it is equipped with at least a set of control assembly and supporting component to rotate between layer and the fixed bed for when opening the function of shaking the head, the angle at mechanism state and place of shaking the head can be confirmed, has solved and has shaken the head failure phenomenon at angle extreme position of function fan of shaking the head, and improves and shakes the head centering precision.
Drawings
Fig. 1 is a front sectional view of a swing mechanism of a fan according to an embodiment of the present invention;
fig. 2 is a perspective view of a swing mechanism of a fan according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of a head moving mechanism of a fan according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of a moving head mechanism of a fan according to an embodiment of the present invention.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.
Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
According to an embodiment of the present invention, as shown in fig. 1 and 2, it can be seen that a fan oscillating mechanism includes:
a rotating layer 410, which drives the fan to rotate;
a fixed layer 420 positioned at the bottom layer of the fan;
the rotating layer 410 and the fixed layer 420 are coaxially arranged, the transmission assembly 10 is arranged in the rotating layer 410, and at least one group of control assembly 20 and support assembly 30 is arranged between the rotating layer 410 and the fixed layer 420.
The transmission assembly 10 further includes a stepping motor 110 and a gear set;
wherein the gear set comprises a large gear 130 and a small gear 120, the stepping motor 110 is mounted on the small gear 120, and the large gear 130 is mounted on the rotation shaft 430 of the rotation layer 410; when the stepping motor 110 is started, the small gear 120 is driven, the small gear 120 is meshed with the large gear 130, so that the large gear 130 performs planetary motion, and the large gear 130 is installed on the rotating shaft 430 of the rotating layer 410, so that the rotating layer 410 rotates to drive the fan to shake the head.
The control assembly 20 includes;
a central hall element 210 which is on the same straight line with the stepping motor 110 and the rotation shaft 430;
the edge hall element 230, centered on the axis of rotation 430, is at the maximum rotation angle of the single side 1/2.
Preferably, hall magnets 220 are respectively disposed below the initial positions of the central hall element 210 and the edge hall element 230, and when the central hall element 210 and the edge hall element 230 are located above the hall magnets 220, a main control chip of the whole machine can receive a signal and send an instruction.
In a specific embodiment, the oscillating fan mechanism has a function of correcting the step loss of the stepping motor 110 through a central hall element 210, and when the central hall element 210 detects a magnetic signal, the pinion 120 is considered to be at the center of a fan-shaped track. The edge hall element 430 has a function of eliminating the malfunction of the panning head, and when the edge hall element 430 detects a magnetic signal, the pinion gear 120 is regarded as being at the edge of the fan-shaped track. The main control chip of the whole machine can output different instructions according to signals received from different hall elements in the control assembly 20, thereby avoiding the failure condition and improving the centering precision of the shaking head.
The support assembly 30 includes a flat bearing 320 and a bearing housing 310;
the plane bearing 320 is arranged on the lower end face of the rotating layer 410, the bearing seat 310 is arranged on the upper end face of the fixed layer 420, and the supporting component 30 is arranged between the rotating layer 410 and the fixed layer 420, so that the supporting function is achieved, the friction coefficient in the movement process is reduced, and the rotation precision of the rotating layer is ensured.
In a specific example, the number of the hall elements can be increased, and when the oscillating function has a plurality of gears, the number of the hall elements can be increased at the maximum rotation position of the gear 1/2 so as to reduce the search time before entering a normal cycle program; the gear set may be replaced by a mechanism having the same function, for example, a crank and rocker mechanism.
Further, the present disclosure also discloses a method for controlling the oscillating mechanism of the fan by using any one of the above mentioned mechanisms, referring to fig. 3 and 4, it can be seen that the method for controlling the oscillating mechanism of the fan includes the following steps:
step S1, the step motor 110 of the transmission assembly 10 is started to drive the rotation layer 410 to drive the fan to rotate;
further, step S2, the transmission assembly 10 rotates 1500 steps;
further, step S3, whether the central hall element 210 of the control assembly 20 detects a magnetic signal;
further, step S4, when the central hall element 210 of the control assembly 20 detects a magnetic signal, step S5 is entered, and the stepping motor 110 of the transmission assembly 10 continues to rotate 1000 steps; when the central hall element 210 of the control assembly 20 does not detect a magnetic signal in step 4, the process proceeds to step S5, and since the central hall element 210 does not detect a magnetic signal, the stepping motor 110 continues to advance until the edge hall element 130 of the control assembly 20 detects a magnetic signal, so as to avoid the failure of the panning head function;
further, step S6, the control of the oscillating mechanism of the fan can be realized by executing the loop program.
The cyclic program comprises the following steps:
step P1, the stepping motor 110 rotates reversely;
further, step P2, the stepping motor 110 rotates in reverse direction for 1500 steps;
further, step P3, the central hall element 210 detects a magnetic signal;
further, in step P4, after the stepping motor 110 continues to rotate for 1500 steps, enter;
step P5, the stepping motor 110 is again reversed;
further, step P6, the stepping motor 110 continues to rotate for 1500 steps;
further, step P7, the central hall element 210 detects a magnetic signal;
further, step P8, the stepping motor 110 continues to rotate 1000 steps;
and step P9, repeating the steps P1-P8, and executing the circulating program in a circulating way to realize the oscillating motion of the oscillating mechanism of the fan.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. A head oscillating mechanism for a fan, comprising:
a rotating layer (410) which drives the fan to rotate;
a fixed layer (420) located at the bottom layer of the fan;
the rotating layer (410) and the fixed layer (420) are coaxially arranged, a transmission assembly (10) is arranged in the rotating layer (410), and at least one group of control assembly (20) and supporting assembly (30) are arranged between the rotating layer (410) and the fixed layer (420).
2. A fan oscillating mechanism according to claim 1, characterized in that said transmission assembly (10) further comprises a step motor (110) and a gear train;
wherein the gear set comprises a gearwheel (130) and a pinion (120), the stepping motor (110) is mounted on the pinion (120), and the gearwheel (130) is mounted on a rotating shaft (430) of the rotating layer (410).
3. A fan oscillating mechanism according to claim 2, characterized in that said control assembly (20) comprises;
a central Hall element (210) collinear with the stepper motor (110) and the rotating shaft (430);
an edge Hall element (230) centered on the axis of rotation (430) at a maximum rotation angle of the single side 1/2.
4. A moving head mechanism according to claim 3, characterized in that hall magnets (220) are arranged below said central hall element (210) and said edge hall elements (230), respectively.
5. A fan oscillating mechanism according to claim 1, characterized in that said support assembly (30) comprises a plane bearing (320) and a bearing seat (310);
wherein the plane bearing (320) is arranged on the lower end surface of the rotating layer (410), and the bearing seat (310) is arranged on the upper end surface of the fixed layer (420).
6. A method for controlling a fan oscillating mechanism according to any one of claims 1 to 5, wherein the method for controlling the fan oscillating mechanism comprises the following steps:
step S1, starting the transmission assembly (10) to drive the rotating layer (410) to drive the fan to rotate;
step S2, the transmission component (10) rotates for 1500 steps;
step S3, whether the central Hall (210) of the control component (20) detects a magnetic signal;
a step S4, the central Hall (210) of the control assembly (20) detects a magnetic signal or the control assembly (20) does not detect a magnetic signal;
step S5, the central Hall element (210) of the control component (20) detects a magnetic signal, and the transmission component (10) continues to rotate for 1000 steps; the center Hall element (210) of the control assembly (20) does not detect a magnetic signal, and the edge Hall element (230) of the control assembly (20) detects a magnetic signal;
and step S6, executing a circulating program to realize the control and use of the oscillating mechanism of the fan.
7. The method of controlling a moving head mechanism of a fan according to claim 6, wherein said cyclic program comprises the steps of:
a step P1, in which the stepping motor (110) rotates in reverse;
step P2, the stepping motor (110) rotates in reverse for 1500 steps;
a step P3, in which the central hall element (210) detects a magnetic signal;
step P4, the step motor (110) continues to rotate for 1500 steps;
step P5, the stepping motor (110) is again reversed;
step P6, the step motor (110) continues to rotate for 1500 steps;
a step P7, in which the central hall element (210) detects a magnetic signal;
step P8, the step motor (110) continues to rotate for 1000 steps;
and step P9, repeating the steps P1-P8 to realize the oscillating motion of the oscillating mechanism of the fan.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088667.0A CN110778512A (en) | 2019-11-08 | 2019-11-08 | Fan oscillating mechanism and control method |
| PCT/CN2020/123891 WO2021088677A1 (en) | 2019-11-08 | 2020-10-27 | Bladeless fan and assembly method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911088667.0A CN110778512A (en) | 2019-11-08 | 2019-11-08 | Fan oscillating mechanism and control method |
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| Publication Number | Publication Date |
|---|---|
| CN110778512A true CN110778512A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911088667.0A Pending CN110778512A (en) | 2019-11-08 | 2019-11-08 | Fan oscillating mechanism and control method |
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| CN (1) | CN110778512A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196481A1 (en) * | 2020-04-02 | 2021-10-07 | 广东美的环境电器制造有限公司 | Rotation driving mechanism of air supply apparatus, air supply apparatus, and household appliance |
| CN114076115A (en) * | 2020-08-10 | 2022-02-22 | 广东美的环境电器制造有限公司 | Oscillating positioning structure, resetting method and device, electric fan and readable storage medium |
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| CN102287386A (en) * | 2011-08-22 | 2011-12-21 | 美的集团有限公司 | Oscillating mechanism of tower fan |
| CN104595220A (en) * | 2014-12-30 | 2015-05-06 | 广东美的环境电器制造有限公司 | Fan, warm air blower and head shaking system, and control method of head shaking system |
| CN109737084A (en) * | 2019-01-27 | 2019-05-10 | 深圳市再玩科技有限公司 | Oscillating fan |
| CN211501042U (en) * | 2019-11-08 | 2020-09-15 | 追觅科技(上海)有限公司 | Fan head shaking mechanism |
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2019
- 2019-11-08 CN CN201911088667.0A patent/CN110778512A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650812U (en) * | 2010-05-20 | 2010-11-24 | 珠海格力电器股份有限公司 | Oscillating device and electric fan employing same |
| CN102287386A (en) * | 2011-08-22 | 2011-12-21 | 美的集团有限公司 | Oscillating mechanism of tower fan |
| CN104595220A (en) * | 2014-12-30 | 2015-05-06 | 广东美的环境电器制造有限公司 | Fan, warm air blower and head shaking system, and control method of head shaking system |
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| CN211501042U (en) * | 2019-11-08 | 2020-09-15 | 追觅科技(上海)有限公司 | Fan head shaking mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021196481A1 (en) * | 2020-04-02 | 2021-10-07 | 广东美的环境电器制造有限公司 | Rotation driving mechanism of air supply apparatus, air supply apparatus, and household appliance |
| US11835052B2 (en) | 2020-04-02 | 2023-12-05 | Gd Midea Environment Appliances Mfg Co., Ltd. | Rotation driving mechanism of air supply apparatus, air supply apparatus, and household appliance |
| CN114076115A (en) * | 2020-08-10 | 2022-02-22 | 广东美的环境电器制造有限公司 | Oscillating positioning structure, resetting method and device, electric fan and readable storage medium |
| CN114076115B (en) * | 2020-08-10 | 2023-06-09 | 广东美的环境电器制造有限公司 | Oscillating positioning structure, resetting method and device, electric fan and readable storage medium |
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