CN219388205U

CN219388205U - Mechanism for balancing rotation moment of air circulation fan

Info

Publication number: CN219388205U
Application number: CN202320459652.6U
Authority: CN
Inventors: 邵强; 王骞; 钟文桥; 曾高才
Original assignee: Hunan Quankang Electronic Technology Co ltd
Current assignee: Hunan Quankang Electronic Technology Co ltd
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-07-21
Anticipated expiration: 2033-03-13

Abstract

The utility model relates to the technical field of air circulation fans, in particular to a mechanism for balancing the rotation moment of an air circulation fan, which comprises a supporting part, a rotating part and a blowing part, wherein the rotating part is provided with a stator assembly, a rotor assembly and an elastic assembly, the stator assembly is fixedly connected to a supporting column, the rotor assembly is movably connected to the stator assembly and rotates around the stator assembly, one end of the elastic assembly is fixedly connected to the stator assembly, and the other end of the elastic assembly is fixedly connected to the rotor assembly. In summary, the elastic component is arranged on the rotating component for driving the circulating fan to perform pitching rotation, so that the moment generated by the change of the gravity center position of the head of the fan in the rotation process can be balanced, the pitching rotation of the circulating fan is smoother, the problem of rotation blocking is reduced, the power of the rotating motor can be reduced, or the rotating motor with low power is used, so that the cost of the whole machine is reduced, the volume of a product is reduced, and the use experience is optimized.

Description

Mechanism for balancing rotation moment of air circulation fan

Technical Field

The utility model relates to the technical field of air circulation fans, in particular to a mechanism for balancing the rotation moment of an air circulation fan.

Background

The air circulation fan is a novel fan which can repeatedly circulate indoor air and simultaneously form convection states for indoor air and outdoor air. The indoor air temperature can be quickly balanced, and the generated convection air can make the indoor air durably fresh.

The purpose of the air circulation fan is to agitate the air so that the indoor air forms a convection circulation, so that it can be understood as an "air stirrer", and thus, not only needs to be rotated left and right, but also needs to be rotated up and down, thereby circulating the air above. The fan with a common structure is inconvenient to rotate up and down, and a person skilled in the art designs a circulating fan using an outer rotor motor, thereby facilitating pitching rotation and enabling air above to enter circulating air flow.

Chinese patent publication No. CN1007649B discloses an electric fan including a support member having a neck-shaped member supported at an upper end thereof, a motor case mounted on the neck-shaped member, and a mounting substrate having an L-shaped cross section disposed in the motor case. The other substantially vertical side edge of the mounting base plate supports the rotation shaft of a direct current brushless motor, which is an external rotation type motor, and includes an internal stator composed of a coil formed around the periphery of a cylinder made of a magnetic material, an external rotor provided with a magnet fixed to the inner wall of a cylindrical (cup-shaped) yoke having a closed bottom, the yoke surrounding the stator and functioning as a stator case. The shaft is typically arranged to extend through the center of the inner stator, with the bottom of the yoke being fixed to the top of the shaft, and in fact being centered on the bottom of the yoke. In the case of a dc brushless motor, the outer rotor rotates.

The DC brushless motor is connected with the mounting base plate through the rotating shaft, and the gravity center of the motor is far away from the mounting base plate, so that when the fan head is driven to do pitching rotation, the torque force applied to the mounting base plate by the motor weight needs to be overcome, and the fan head is inconvenient to pitch rotation.

Therefore, when the circulating fan provided with the outer rotor motor rotates in a pitching way, the moment generated by the change of the gravity center position of the head of the fan in the rotating process is balanced, and the technical problem to be solved is solved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a technical scheme capable of solving the problems.

The utility model provides a mechanism for balancing the rotation moment of an air circulation fan, which comprises a supporting part, a rotating part and a blowing part, wherein the supporting part is provided with a supporting column and a supporting base which are fixedly connected with each other; the rotating component is provided with a stator component, a rotor component and an elastic component, wherein the stator component is fixedly connected to the supporting column, the rotor component is movably connected to the stator component and rotates around the stator component, one end of the elastic component is fixedly connected to the stator component, the other end of the elastic component is fixedly connected to the rotor component, and the elastic component is used for balancing torque generated when the rotor component rotates around the stator component.

As a further scheme of the utility model: the stator assembly is provided with a first stator, the rotor assembly is provided with a first rotor, the elastic assembly is provided with a first elastic piece, the first stator is fixedly connected to the support column, the first rotor is movably connected to the first stator and rotates around the first stator, one end of the first elastic piece is fixedly connected to the first stator, the other end of the first elastic piece is fixedly connected to the first rotor, and the first elastic piece is used for dispersing torque generated when the first rotor rotates around the first stator.

As a further scheme of the utility model: the stator assembly is provided with the second stator, and the rotor assembly is provided with the second rotor, and the elastic assembly is provided with the second elastic component, and second stator fixed connection is on the support column, and second rotor swing joint is on the second stator and around the second stator is rotatory, and the one end fixed connection of second elastic component is on the second stator, and the other end fixed connection of second elastic component is on the second rotor, and the second elastic component is used for dispersing the moment that the second rotor produced when rotatory around the second stator.

As a further scheme of the utility model: the rotating part is also provided with a rotating motor and a rotating gear, the rotating motor is fixedly connected to the stator assembly, and the rotating gear is fixedly connected to an output shaft of the rotating motor; the rotor assembly is provided with driven gear teeth matched with the rotating gear, and the driven gear teeth are connected with the rotating gear in a meshed mode.

As a further scheme of the utility model: the part of blowing is provided with stable support, motor and the flabellum of blowing, and stable support fixed connection is on rotor subassembly, and the center pin fixed connection of motor of blowing is on stable support, and flabellum fixed connection is on the slewing mechanism of motor of blowing, thereby the motor drive of blowing flabellum of blowing rotates and forms gaseous flow.

As a further scheme of the utility model: the elastic component is arranged as a spring.

As a further scheme of the utility model: the elastic component is arranged as a rubber rope with elasticity.

As a further scheme of the utility model: the central shaft of the rotation part is used as a rotation shaft, the shaft vertical to the support base on the support column is used as a support shaft, the plane vertical to the support shaft and intersecting with the rotation shaft is used as an initial plane, and two ends of the elastic component are respectively positioned at two sides of the initial plane.

As a further scheme of the utility model: the first elastic piece is provided with a first fixed end and a first rotating end, and the first fixed end is positioned on the upper side of the initial plane and is fixedly connected with the first stator; the first rotating end is positioned at the lower side of the initial plane and is fixedly connected with the first rotor.

As a further scheme of the utility model: the second elastic piece is provided with a second fixed end and a second rotating end, the second fixed end is positioned at the lower side of the initial plane and is fixedly connected with the second stator, and the second rotating end is positioned at the upper side of the initial plane and is fixedly connected with the second rotor.

Compared with the prior art, the utility model has the beneficial effects that:

1. because set up elastic component on driving circulation fan to do every single move pivoted rotating member to can balance the moment that produces because fan head focus position variation in the rotation process, thereby make the every single move of circulation fan rotate more smoothly, reduce the problem that appears rotating the card and stop, also can reduce the power of rotating the motor, perhaps use low-power rotation motor, thereby reduce the complete machine cost, reduce the product volume, optimize and use and experience.

2. The elastic component is arranged between the stator component and the rotor component of the rotating component, so that the rotor component can rotate around the stator component more smoothly, and the clamping condition is reduced.

3. Can set up first elastic component and second elastic component to it connects stator module and rotor module's direction different, pulls rotor module from a plurality of angles, reduces the gravity influence that rotor module received when rotating, makes rotor module rotate more smoothly, reduces the condition of card dun.

In summary, since the elastic component is arranged between the stator component and the rotor component, the moment generated by the change of the gravity center position of the head of the fan in the rotation process can be balanced, so that the circulating fan is smoother in pitching rotation; the cost of the whole machine can be reduced, the product volume is reduced, the use experience is optimized, and the competitiveness of the product is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a parallel blowing structure of the present utility model;

FIG. 2 is a schematic view of an upward blowing structure of the present utility model;

FIG. 3 is a schematic diagram of a rotary motor according to the present utility model;

FIG. 4 is a schematic view of the first stator and first rotor construction of the present utility model;

FIG. 5 is a schematic cross-sectional view of a first stator and a first rotor of the present utility model;

FIG. 6 is a schematic cross-sectional view of a rotary gear of the present utility model;

FIG. 7 is a schematic view of the driven gear configuration of the present utility model;

FIG. 8 is a schematic view of a second stator and a second rotor configuration of the present utility model;

FIG. 9 is a schematic cross-sectional view of a second stator and a second rotor of the present utility model;

fig. 10 is a schematic view of an initial planar structure of the present utility model.

Reference numerals and names in the drawings are as follows:

10 a support member; 11 support columns; 12 supporting a base; 13 supporting the shaft; 14 an initial plane; 20 a rotating member; 21 a rotary motor; 22 rotating the gear; 23, rotating a shaft; 30 stator assembly; 31 a first stator; 32 a second stator; a 40 rotor assembly; 41 a first rotor; a second rotor 42; 43 driven gear teeth; an elastic component 50; 51 a first elastic member; 52 a first stationary end; 53 a first rotational end; 54 a second elastic member; a second stationary end 55; 56 a second rotary end; 60 air blowing components; 61 stabilizing the stent; 62 blowing motor; 63 air blowing fan blades.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 10, in an embodiment of the present utility model, a mechanism for balancing a rotation moment of an air circulation fan includes a support member 10, a rotation member 20 and a blowing member 60, wherein the support member 10 includes a support column 11 and a support base 12 fixedly connected to each other, the rotation member 20 is movably connected to an end of the support column 11 far from the support base 12, and the blowing member is fixedly connected to the rotation member 20 and synchronously rotates along with the rotation member 20; the rotating component 20 comprises a stator assembly 30, a rotor assembly 40 and an elastic assembly 50, wherein the stator assembly 30 is fixedly connected to the supporting column 11, the rotor assembly 40 is movably connected to the stator assembly 30 and rotates around the stator assembly 30, one end of the elastic assembly 50 is fixedly connected to the stator assembly 30, the other end of the elastic assembly 50 is fixedly connected to the rotor assembly 40, and the elastic assembly 50 is used for balancing moment generated when the rotor assembly 40 rotates around the stator assembly 30.

Specifically, first, the blowing part 60 is fixed to the rotating part 20 and the air is blown by the rotation of the blowing motor 62 and the blowing fan blades 63, and the blowing part 60 is a combination of a motor and fan blades in the related art, preferably an outer rotor motor, in which the fan blades are fixedly coupled to the outer rotor to rotate, and an inner stator, i.e., a central shaft, of the outer rotor motor is fixedly coupled to the rotating part 20 through the stabilizing bracket 61. The rotating member 20 includes a rotating motor 21, preferably a small low-power stepping motor, and the rotating motor 21 drives the rotating gear 22 to rotate, thereby simultaneously driving the driven gear teeth 43 on the rotor assembly 40 to synchronously rotate, so that the rotor assembly 40 can rotate around the rotating shaft 23 of the rotating member 20, and simultaneously drives the air blowing member 60 to synchronously pitch to realize the effect of up-down air blowing of the air circulation fan.

Secondly, since the center of gravity position of the outer rotor motor is relatively far from the rotation shaft 23 of the rotating member 20, a correspondingly varying moment is generated due to the variation of the center of gravity position of the head of the fan during the rotation, which affects the rotation of the rotating member 20, and thus the elastic assembly 50 is provided to balance the varying moment. One end of the elastic component 50 is connected to the stator component 30, the other end of the elastic component is connected to the rotor component 40, and the elastic component 50 is used for pulling the air blowing component 60, so that moment generated by gravity center position change of the outer rotor motor is balanced, the changing moment encountered when the rotor component 40 rotates up and down is balanced, the air circulation fan is smoother when pitching rotation and blowing, and clamping is reduced.

As shown in fig. 4 to 7, the stator assembly 30 includes a first stator 31, the rotor assembly 40 includes a first rotor 41, the elastic assembly 50 includes a first elastic member 51, the first stator 31 is fixedly connected to the support column 11, the first rotor 41 is movably connected to the first stator 31 and rotates around the first stator 31, one end of the first elastic member 51 is fixedly connected to the first stator 31, the other end of the first elastic member 51 is fixedly connected to the first rotor 41, and the first elastic member 51 is used for dispersing torque generated when the first rotor 41 rotates around the first stator 31.

As shown in fig. 8 and 9, the stator assembly 30 includes a second stator 32, the rotor assembly 40 includes a second rotor 42, the elastic assembly 50 includes a second elastic member 54, the second stator 32 is fixedly connected to the support column 11, the second rotor 42 is movably connected to the second stator 32 and rotates around the second stator 32, one end of the second elastic member 54 is fixedly connected to the second stator 32, the other end of the second elastic member 54 is fixedly connected to the second rotor 42, and the second elastic member 54 is used for dispersing torque generated when the second rotor 42 rotates around the second stator 32.

Specifically, the rotating member 20 may be provided with only one set of a stator, a rotor, and an elastic member, and be rotationally driven from one end of the stabilizing support 61. Preferably, a group of stators, rotors and elastic members are respectively arranged at two ends of the stabilizing support 61 connected with the rotating member 20, so that the air blowing member 60 can be rotated more uniformly, and the up-and-down air supply of the air circulation fan is smoother.

As shown in fig. 3 and 7, the rotating member 20 further includes a rotating motor 21 and a rotating gear 22, the rotating motor 21 is fixedly connected to the stator assembly 30, and the rotating gear 22 is fixedly connected to an output shaft of the rotating motor 21; the rotor assembly 40 includes driven gear teeth 43 that cooperate with the rotary gear 22, the driven gear teeth 43 being in meshed engagement with the rotary gear 22.

Specifically, the rotary motor 21 may drive the rotary gear 22 to rotate synchronously, and the rotary gear 22 drives the rotor assembly 40 to rotate through the driven gear teeth 43. The rotation of the rotor assembly 40 is mainly driven by the rotation motor 21 and the rotation gear 22, and the rotation gear 22 is in meshed connection with the driven gear teeth 43, so that the rotor assembly 40 can rotate better. The preferred rotary motor 21 is a gear motor, i.e., the motor has a reduction gear incorporated therein, so that the rotational speed of the motor can be reduced, the torque of the motor can be increased, and the rotation of the rotor assembly 40 can be made smoother.

As shown in fig. 1 to 3, the blowing part 60 includes a stabilizing bracket 61, a blowing motor 62 and a blowing fan blade 63, the stabilizing bracket 61 is fixedly connected to the rotor assembly 40, a central shaft of the blowing motor 62 is fixedly connected to the stabilizing bracket 61, the blowing fan blade 63 is fixedly connected to a rotating mechanism of the blowing motor 62, and the blowing motor 62 drives the blowing fan blade 63 to rotate to form a flow of gas.

The elastic member 50 is provided as a spring. The elastic member 50 is provided as a rubber string having elasticity. Specifically, the elastic component 50 may be a material that has elastic force and is convenient to be placed inside the rotating component 20 in the prior art, preferably uses a spring or a strong rubber rope, and can always maintain a certain pulling force in the long-term pulling process, so as to form a pulling action on the rotor component 40, and make the rotation of the air blowing component 60 smoother.

As shown in fig. 10, a central axis of rotation of the rotating member 20 is set as a rotation axis 23, a virtual axis perpendicular to the support base 12 on the support column 11 is set as a support axis 13, a virtual plane perpendicular to the support axis 13 and intersecting the rotation axis 23 is set as an initial plane 14, and both ends of the elastic assembly 50 are located on both sides of the initial plane 14, respectively. The first elastic member 51 includes a first stationary end 52 and a first rotating end 53, the first stationary end 52 being located at an upper side of the initial plane 14 and fixedly connected with the first stator 31; the first rotating end 53 is located at the lower side of the initial plane 14 and fixedly connected to the first rotor 41. The second elastic member 54 includes a second stationary end 55 and a second rotating end 56, the second stationary end 55 is located at the lower side of the initial plane 14 and fixedly connected with the second stator 32, and the second rotating end 56 is located at the upper side of the initial plane 14 and fixedly connected with the second rotor 42.

Specifically, in order to make the pulling of the rotor assembly 40 by the elastic assembly 50 more uniform, the elastic assemblies 50 may be disposed on both the rotor assembly 40 and the stator assembly 30 at both ends, and it is preferable that the pulling directions of the elastic assemblies 50 at both ends are different, but the upward pulling force is formed on the rotor assembly 40, so that the rotation motor 21 is more labor-saving and smooth when the blower unit 60 is driven to rotate upward. It will be appreciated that the axis of the support column 11 perpendicular to the support base 12 is a virtual axis and that the plane perpendicular to the support axis 13 and intersecting the rotation axis 23 is a virtual plane. The virtual axis and the virtual plane are virtual components which are easy to understand and are derived from the support columns 11 or the rotation axes 23 which are actually present in reality, and are used for representing the corresponding positions or changing directions, without the existence of such axes or planes in reality.

In addition, the rotation shaft 23 of the rotor assembly 40 may be understood as a fulcrum, and the rotation assembly may be understood as a lever having one end connected to the blowing part 60. In order to rotate the blowing member 60 upward with the lever centering around the fulcrum, there may be two ways, one in which an upward force is applied to the lever between the fulcrum and the blowing member 60, and the other in which a downward force is applied to the end of the lever away from the blowing member 60. The pulling force of the two sets of springs on the rotor assembly 40 can also be understood.

When in use, the power supply of the air circulation fan is turned on, and the corresponding switch is turned on, so that the circulation fan starts to operate. First, the blowing member 60 starts to rotate and brings the air to flow so as to blow out the air flow. When the air circulation fan is required to rotate upwards, so that the air above also circulates in a flowing way, the power switch of the rotating motor 21 is turned on, the rotating motor 21 starts to operate, the driven gear teeth 43 are driven by the rotating gear 22 to drive the rotor assembly 40 to rotate, and the air blowing component 60 is rotated upwards, so that upward blowing is realized. In the process of rotating the motor 21 to drive the rotor assembly 40, the elastic assembly 50 forms a rotary pulling force on the rotor assembly 40, so that the rotor assembly 40 rotates more smoothly, and jamming is reduced.

Through the improvement, the moment generated by the change of the gravity center position of the head part of the fan in the up-and-down rotation process of the circulating fan can be balanced, so that the circulating fan is smoother in pitching rotation; the cost of the whole machine can be reduced, the product volume is reduced, the use experience is optimized, and the competitiveness of the product is improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The mechanism for balancing the rotating moment of the air circulation fan comprises a supporting part (10), a rotating part (20) and a blowing part (60), wherein the supporting part (10) is provided with a supporting column (11) and a supporting base (12) which are fixedly connected with each other, the rotating part (20) is movably connected to one end, far away from the supporting base (12), of the supporting column (11), and the blowing component is fixedly connected to the rotating part (20) and synchronously rotates along with the rotating part (20); the rotor is characterized in that the rotating component (20) is provided with a stator assembly (30), a rotor assembly (40) and an elastic assembly (50), the stator assembly (30) is fixedly connected to the supporting column (11), the rotor assembly (40) is movably connected to the stator assembly (30) and rotates around the stator assembly (30), one end of the elastic assembly (50) is fixedly connected to the stator assembly (30), the other end of the elastic assembly (50) is fixedly connected to the rotor assembly (40), and the elastic assembly (50) is used for balancing torque generated when the rotor assembly (40) rotates around the stator assembly (30).

2. The mechanism for balancing rotational moment of an air circulation fan according to claim 1, wherein the stator assembly (30) is provided with a first stator (31), the rotor assembly (40) is provided with a first rotor (41), the elastic assembly (50) is provided with a first elastic member (51), the first stator (31) is fixedly connected to the support column (11), the first rotor (41) is movably connected to the first stator (31) and rotates around the first stator (31), one end of the first elastic member (51) is fixedly connected to the first stator (31), the other end of the first elastic member (51) is fixedly connected to the first rotor (41), and the first elastic member (51) is used for dispersing moment generated when the first rotor (41) rotates around the first stator (31).

3. A mechanism for balancing rotational moment of an air circulation fan according to claim 2, wherein the stator assembly (30) is provided with a second stator (32), the rotor assembly (40) is provided with a second rotor (42), the elastic assembly (50) is provided with a second elastic member (54), the second stator (32) is fixedly connected to the support column (11), the second rotor (42) is movably connected to the second stator (32) and rotates around the second stator (32), one end of the second elastic member (54) is fixedly connected to the second stator (32), the other end of the second elastic member (54) is fixedly connected to the second rotor (42), and the second elastic member (54) is used for dispersing moment generated when the second rotor (42) rotates around the second stator (32).

4. A mechanism for balancing the rotational moment of an air circulation fan according to claim 2 or 3, wherein the rotating member (20) is further provided with a rotating motor (21) and a rotating gear (22), the rotating motor (21) is fixedly connected to the stator assembly (30), and the rotating gear (22) is fixedly connected to the output shaft of the rotating motor (21); the rotor assembly (40) is provided with driven gear teeth (43) matched with the rotating gear (22), and the driven gear teeth (43) are in meshed connection with the rotating gear (22).

5. The mechanism for balancing rotational moment of an air circulation fan according to claim 1, wherein the blowing means (60) is provided with a stabilizing support (61), a blowing motor (62) and blowing blades (63), the stabilizing support (61) is fixedly connected to the rotor assembly (40), a central shaft of the blowing motor (62) is fixedly connected to the stabilizing support (61), the blowing blades (63) are fixedly connected to a rotating mechanism of the blowing motor (62), and the blowing motor (62) drives the blowing blades (63) to rotate to form a flow of gas.

6. A mechanism for balancing the moment of rotation of an air circulation fan according to claim 1, wherein the elastic member (50) is provided as a spring.

7. A mechanism for balancing the rotational moment of an air circulation fan according to claim 1, wherein the elastic member (50) is provided as a rubber string having elastic force.

8. A mechanism for balancing the rotational moment of an air circulation fan according to claim 3, wherein the central axis of rotation of the rotating member (20) is defined as a rotation axis (23), the axis of the support column (11) perpendicular to the support base (12) is defined as a support axis (13), the plane perpendicular to the support axis (13) and intersecting the rotation axis (23) is defined as an initial plane (14), and both ends of the elastic member (50) are located on both sides of the initial plane (14), respectively.

9. A mechanism for balancing the moment of rotation of an air circulation fan according to claim 8, characterized in that the first elastic member (51) is provided with a first stationary end (52) and a first rotating end (53), the first stationary end (52) being located on the upper side of the initial plane (14) and fixedly connected with the first stator (31); the first rotating end (53) is positioned at the lower side of the initial plane (14) and is fixedly connected with the first rotor (41).

10. A mechanism for balancing the rotational moment of an air circulation fan according to claim 8, wherein the second elastic member (54) is provided with a second stationary end (55) and a second rotating end (56), the second stationary end (55) being located at the lower side of the initial plane (14) and fixedly connected with the second stator (32), the second rotating end (56) being located at the upper side of the initial plane (14) and fixedly connected with the second rotor (42).