CN219062090U - Fan subassembly and tuber pipe machine - Google Patents
Fan subassembly and tuber pipe machine Download PDFInfo
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- CN219062090U CN219062090U CN202223529034.9U CN202223529034U CN219062090U CN 219062090 U CN219062090 U CN 219062090U CN 202223529034 U CN202223529034 U CN 202223529034U CN 219062090 U CN219062090 U CN 219062090U
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- 230000008878 coupling Effects 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The application provides a fan subassembly and tuber pipe machine, fan subassembly include DC brushless motor, wind wheel and rotary device. The direct current brushless motor comprises a first rotating shaft, ball bearings, a stator assembly and a rotor assembly arranged in the stator assembly, wherein the first rotating shaft is fixed on the rotor assembly and extends towards two sides of the rotor assembly, the ball bearings are arranged on the first rotating shaft, and the rotor assembly drives the first rotating shaft to rotate and drives the ball bearings to rotate along a first direction; the wind wheel is arranged at least one end of the first rotating shaft; the rotating device is connected with one end of the first rotating shaft and is used for driving the first rotating shaft to rotate and driving the ball bearing to rotate along a second direction, and the first direction is opposite to the second direction. According to the rotary device, the rotary device is arranged at one end of the first rotary shaft, the first rotary shaft is utilized to drive the ball bearing to rotate along the second direction, so that the balls in the bearing can be continuously changed in position, noise generated by fretting wear of the bearing is avoided, and the service life of a product is prolonged.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a fan assembly and an air duct machine.
Background
The air conditioner is an indispensable household appliance in people's daily life, and tuber pipe machine is pleasing to the eye owing to its hidden installation 0's characteristics, does not occupy the space after the installation, receives more and more people's liking.
In the related art, a motor of the air duct machine usually adopts a direct current brushless motor to save energy and reduce indoor noise, and because the direct current brushless motor has cogging torque, a permanent magnet rotor and a stator core have interaction magnetic force, when the motor is not running, the rotor is always at a fixed angle, and the contact surface of a bearing ball and a roller path is always at the same position.
And 5, the wind pipe machine can cause the continuous vibration of the rotor bearing in the transportation process, the continuous vibration of the outside during room decoration after the air conditioner is installed, and the like, so that the balls and the rollaway nest in the rotor bearing continuously act on one point, fretting wear can be generated after a long time, and the noise of the motor is increased.
Disclosure of Invention
0 this application embodiment provides a fan subassembly to solve DC brushless motor's ball bearing and lead to the great technical problem of air conditioner internal noise because of ball and raceway produce wearing and tearing.
In order to achieve the above purpose, the fan assembly provided by the application comprises a direct current brushless motor, a wind wheel and a rotating device. The DC brushless motor comprises a first rotating shaft, a ball bearing, a stator assembly and a setting
The first rotating shaft is fixed on the rotor assembly and extends towards two sides of the rotor assembly, the ball bearings are arranged on the first rotating shaft, and the rotor assembly drives the first rotating shaft to rotate and drives the ball bearings to rotate along a first direction; the wind wheel is arranged at least one end of the first rotating shaft; the rotating device is connected with one end of the first rotating shaft and is used for driving the first rotating shaft to rotate and driving the ball bearing to rotate along a second direction, and the first direction is opposite to the second direction.
0, and in one embodiment, the rotating device includes a driving member including a second shaft, and a coupling including opposite first and second ends, the first end being coupled to the first shaft and the second end being coupled to the second shaft.
Optionally, in an embodiment, the coupling is a one-way coupling, and the one-way coupling is used for preventing the brushless dc motor from driving the driving element to rotate.
Optionally, in an embodiment, a first end of the unidirectional coupling is provided with a unidirectional bearing, and the unidirectional bearing is connected with the first rotation shaft.
Optionally, in an embodiment, the second end is provided with a thread to enable the second end to be screwed with the first end, and the rotation direction of the thread is the same as the second direction.
Optionally, in an embodiment, the ball bearing includes an inner ring, an outer ring, and balls disposed between the inner ring and the outer ring, and the first rotating shaft is in interference fit with the inner ring to drive the inner ring to rotate.
Optionally, in an embodiment, the fan assembly further includes a volute, the number of wind wheels is two, and the wind wheels are respectively located at two ends of the dc brushless motor, and the wind wheels are fixed on the first rotating shaft and located in the corresponding volute.
The application also provides an air duct machine, the air duct machine includes the fan assembly.
Optionally, in an embodiment, the air duct machine includes a housing, a receiving cavity is formed in the housing, the fan assembly is located in the receiving cavity, and one side of the rotating device is fixed on the housing.
Optionally, in an embodiment, the air duct machine further includes a fixing frame, the fixing frame is connected with the shell through screws, and the dc brushless motor is installed on the fixing frame.
The fan subassembly that this application provided sets up rotary device through the one end at DC brushless motor's first pivot, rotary device is used for driving first pivot and rotates along the second direction, the opposite direction when driving first pivot and air conditioner operation promptly, thereby utilize first pivot to drive ball bearing and rotor and rotate along the second direction, make the rotor constantly rotate the transformation position, overcome DC brushless motor because of the tooth's socket torque that exists under the static state, and make the ball constantly change the position in the bearing, prevent tuber pipe machine because of the vibration that transportation, fitment etc. produced and long-term stewing cause the inside fretting wear that produces of bearing, and then solved the noise that the bearing produced because of fretting wear, and improved the life of product.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from the structures shown in these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic structural diagram of a blower assembly provided in an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic structural diagram of a coupling according to an embodiment of the present disclosure;
fig. 4 is a partially exploded schematic view of a fan assembly according to an embodiment of the present disclosure.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name | Reference numerals | Name of the |
| 100 | |
12 | |
1322 | |
| 10 | |
13 | |
14 | |
| 11 | DC |
131 | |
15 | |
| 111 | First rotating |
132 | |
||
| 112 | Ball bearing | 1321 | First end |
The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The embodiment of the application provides a fan assembly to solve DC brushless motor's ball bearing and lead to the great technical problem of air conditioner internal noise because of ball and raceway produce wearing and tearing. The following description will be made with reference to the accompanying drawings.
In the embodiment of the present application, as shown in fig. 1, the fan assembly includes a brushless dc motor 11, a wind wheel 12, and a rotating device 13. The brushless dc motor 11 includes a first shaft 111, a ball bearing 112, a stator assembly, and a rotor assembly disposed in the stator assembly, where the first shaft 111 is fixed on the rotor assembly and extends toward two sides of the rotor assembly, the ball bearing 112 is mounted on the first shaft 111, and the rotor assembly drives the first shaft 111 to rotate and drives the ball bearing 112 to rotate along a first direction; the wind wheel 12 is mounted on at least one end of the first shaft 111; the rotating device 13 is connected to one end of the first rotating shaft 111, and the rotating device 13 is used for driving the first rotating shaft 111 to rotate and driving the ball bearing 112 to rotate along a second direction, wherein the first direction is opposite to the second direction.
It should be noted that, in the prior art, a brushless dc motor is generally used for a motor of an air duct machine to achieve the effects of saving energy and reducing indoor noise, but a rotor of the brushless dc motor always tends to stay at a certain position in a static state, that is, the rotor is always at a fixed angle when the motor is not running, a contact surface of a ball of a bearing and a raceway is always at the same position, and the ball and the raceway in the motor are continuously acted at a point due to continuous vibration of the air duct machine in a transportation process, continuous vibration of the outside during room decoration after air conditioner installation and other reasons, fretting wear is generated at the point after a long time, and when the motor is running, the noise of the motor is increased due to different wear degrees of the ball and the raceway in the bearing.
This application sets up rotary device 13 through the one end at DC brushless motor 11's first pivot 111, rotary device 13 is used for driving first pivot 111 and rotates along the second direction, first pivot 111 then drives ball bearing 112 and rotor and rotates along the second direction for the continuous rotatory transformation position of rotor, overcome DC brushless motor 11 because of the cogging torque that exists under the static condition, and make the continuous transformation position of ball in the bearing, prevent tuber pipe machine because of the vibration that transportation, fitment etc. produced and long-term standing cause the inside fretting wear that produces of bearing, and then solved the noise that the bearing produced because of fretting wear, and improved the life of product.
Specifically, referring to fig. 1, the first direction may be a rotation direction of the brushless dc motor 11 when the air duct machine is running. When the wind pipe machine operates, the rotor of the brushless DC motor 11 rotates along the first direction and drives the first rotating shaft 111 to move along the first direction, and the first rotating shaft 111 is matched with the wind wheel 12 to guide the air flow.
The second direction may be a direction opposite to the rotation direction of the dc brushless motor 11 when the ducted air conditioner is operated. When the rotating device 13 receives the rotation instruction, the rotating device 13 drives the first rotating shaft 111 to rotate along the second direction, and the second rotating shaft drives the bearing to rotate, so that the balls inside the bearing revolve around the axle center and rotate, and the position is continuously changed. The rotary device 13 can effectively prevent micro-abrasion of the ball and the rollaway nest of the bearing due to long-time static, so that noise of the fan assembly is reduced. Meanwhile, the direction of the rotation device 13 for driving the first rotating shaft 111 to rotate is opposite to the rotation direction of the first rotating shaft 111 when the air pipe machine operates, so that unnecessary operation of the air pipe machine caused by starting the rotation device 13 can be prevented.
Illustratively, the brushless dc motor 11 includes a motor housing, the rotor assembly and the stator assembly are both located inside the motor housing, the rotor assembly includes magnetic steel and a rotor core, the rotor core is coaxially mounted on the middle section of the first rotating shaft 111 in a matching manner, the magnetic steel is distributed on the outer peripheral surface of the rotor core in a circumferential array in the axial direction of the rotor core, and the magnetic steel can be fixed on the rotor core by being glued by the magnetic steel. The stator assembly comprises a stator core and a stator winding wound on the stator core, and the stator winding is arranged opposite to the magnetic steel. The number of ball bearings 112 is two, and two ball bearings 112 are installed inside the motor housing and distributed on both sides of the rotor assembly.
Alternatively, in an embodiment, referring to fig. 1 to 3, the rotating device 13 includes a driving member 131 and a coupling 132, where the driving member 131 includes a second rotating shaft, the coupling 132 includes a first end 1321 and a second end 1322 opposite to each other, the first end 1321 of the coupling 132 is connected to the first rotating shaft 111, and the second end 1322 of the coupling 132 is connected to the second rotating shaft.
Specifically, the driving member 131 may be powered by a low-voltage power source or a battery, and after being electrified, the driving member 131 may be a stepper motor, for example, that outputs a torque force to drive the first shaft 111 to slowly rotate at a low speed. The stepper motor has a second shaft, and the brushless dc motor 11 has a first shaft 111, so that the first shaft 111 is connected to the second shaft through the coupling 132, and the first shaft 111 can be driven to rotate by the stepper motor. In an exemplary embodiment, the stepping motor may be controlled to be energized to rotate when the air conditioner is not in operation, and the stepping motor is in a non-operating state when the air conditioner is in operation, thereby improving the safety performance of the air conditioner.
Further, the coupling 132 is a one-way coupling, which can be used to prevent the brushless dc motor 11 from driving the driving member 131 to rotate. By arranging the unidirectional coupler, namely the first rotating shaft 111 of the direct current brushless motor 11 can not drive the driving piece 131 to rotate when the air conditioner operates, when the driving piece 131 is started, the second rotating shaft of the driving piece 131 can drive the direct current brushless motor 11 to rotate through the coupler 132, so that the problem that the rotating speed of the first rotating shaft 111 is reduced due to resistance at the coupler 132 is solved, and the indoor air output is influenced; and simultaneously, the damage to the driving member 131 due to the high-speed rotation of the first rotating shaft 111 is prevented, and the safety performance of the product is improved.
Optionally, in an embodiment, referring to fig. 3, the first end 1321 of the unidirectional coupling is provided with a unidirectional bearing, and the unidirectional bearing is connected to the first rotation shaft 111.
Specifically, the first end 1321 and the second end 1322 of the unidirectional coupling 132 may be respectively cylindrical, a first shaft hole is disposed on a side of the first end 1321 away from the second end 1322, a unidirectional bearing is fixed inside the first end 1321, and the first shaft 111 extends into the first shaft hole and is connected with the unidirectional bearing; the second end 1322 of the unidirectional coupling 132, which is far away from the first end 1321, is provided with a second shaft hole, and the second shaft is fixedly connected with the second shaft hole. The unidirectional bearing can only rotate freely in the first direction and is in a locking state in the second direction, when the air conditioner operates, the first rotating shaft 111 drives the unidirectional bearing to rotate, at the moment, the body of the coupler 132 cannot rotate, so that the first rotating shaft 111 cannot drive the driving piece 131 to rotate, the second rotating shaft of the driving piece 131 is fixedly connected with the second shaft hole, and therefore, when the driving piece 131 rotates along the second direction, the coupler 132 is driven to rotate and the first rotating shaft 111 is driven to rotate.
Optionally, in an embodiment, the second end 1322 of the unidirectional coupling 132 is provided with threads such that the second end 1322 is threadably coupled to the first end 1321, and the threads are oriented in the same direction as the second direction.
Specifically, the first shaft 111 is fixedly connected to the first end 1321, the second shaft is fixedly connected to the second end 1322, and when the first shaft 111 rotates along the first direction, the threads between the first end 1321 and the second end 1322 of the unidirectional coupling 132 are in an unmated state, so that the first shaft 111 can only drive the first end 1321 to rotate, but not drive the driving member 131 to rotate; when the driving member 131 rotates in the second direction, the screw thread between the first end 1321 and the second end 1322 of the one-way coupling 132 is in a locked state, so that the first rotation shaft 111 can synchronously rotate in the second direction.
Optionally, in an embodiment, the ball bearing 112 includes an inner ring, an outer ring, and balls disposed between the inner ring and the outer ring, and the first shaft 111 is in interference fit with the inner ring to rotate the inner ring.
Specifically, the brushless dc motor 11 is provided with a bearing seat inside, the outer ring is in locking fit with the bearing seat hole, and the inner ring is in locking fit with the first rotating shaft 111, when the first rotating shaft 111 rotates, the inner ring and the first rotating shaft 111 synchronously rotate, the outer ring is fixed, the revolution direction of the balls is the same as the rotation direction of the first rotating shaft 111, and the rotation direction of the balls is opposite to the rotation direction of the first rotating shaft 111.
Optionally, in an embodiment, referring to fig. 1 and fig. 4, the fan assembly further includes a volute 15, where the number of wind wheels 12 is two and located at two ends of the dc brushless motor 11, and the wind wheels 12 are fixed on the first shaft 111 and located in the corresponding volute 15.
Specifically, two air inlets are respectively arranged at two ends of each volute 15 along the axial direction of the first rotating shaft 111, the first rotating shaft 111 rotates to drive the wind wheel 12 to rotate, and air flows enter the interiors of the volutes 15 through the air inlets and are blown out through the air outlets on the volutes 15, so that air supply of the fan assembly is realized.
Each of the volutes 15 may also be provided with an air inlet at only one end thereof, and the air inlet may be located at one end of each volute 15 close to the dc brushless motor 11 or one end far from the dc brushless motor 11, respectively, in order to maintain the operation balance of the fan assembly.
The embodiment of the application also provides an air duct machine, which comprises a fan assembly, and the specific structure of the fan assembly refers to the embodiment, and because the air duct machine adopts all the technical schemes of all the embodiments, the air duct machine at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
Alternatively, in an embodiment, referring to fig. 1, the air duct machine includes a housing 100, a receiving chamber 10 is formed inside the housing 100, a fan 12 assembly is located in the receiving chamber 10, and one side of a rotating device 13 is fixed to the housing 100.
Specifically, the housing 100 is rectangular, the fan assembly is mounted in the accommodating cavity 10 along the length direction of the housing 100, that is, the width direction of the paper surface in fig. 1, and the side of the driving member 131 away from the coupling 132 can be fixed to the side of the housing 100 by screws.
Optionally, in an embodiment, the air duct machine further includes a fixing frame 14, the fixing frame 14 is connected with the casing 100 by a screw, and the brushless dc motor 11 is mounted on the fixing frame 14. The fixing frame 14 has a connection end and a support end, the support end is perpendicular to the connection end, a plurality of screw holes are formed in the connection end, the connection end is fixed with the bottom of the shell 100 through screws, a mounting portion is arranged on the support end, and the brushless DC motor 11 is fixed on the support end.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments. In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.
The foregoing has described in detail the fan assembly provided by the embodiments of the present application, and specific examples have been used herein to illustrate the principles and embodiments of the present application, the above examples being provided only to assist in understanding the methods of the present application and the core ideas thereof; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.
Claims (10)
1. A fan assembly, comprising:
the direct current brushless motor comprises a first rotating shaft, ball bearings, a stator assembly and a rotor assembly arranged in the stator assembly, wherein the first rotating shaft is fixed on the rotor assembly and extends towards two sides of the rotor assembly, the ball bearings are arranged on the first rotating shaft, and the rotor assembly drives the first rotating shaft to rotate and drives the ball bearings to rotate along a first direction;
the wind wheel is arranged at least one end of the first rotating shaft;
the rotating device is connected with one end of the first rotating shaft and is used for driving the first rotating shaft to rotate and driving the ball bearing to rotate along a second direction, and the first direction is opposite to the second direction.
2. The fan assembly of claim 1, wherein the rotating means comprises a drive member comprising a second shaft and a coupling comprising opposed first and second ends, the first end being connected to the first shaft and the second end being connected to the second shaft.
3. The fan assembly of claim 2, wherein the coupling is a one-way coupling for preventing the dc brushless motor from rotating the driving member.
4. A fan assembly as claimed in claim 3, wherein the first end of the one-way coupling is provided with a one-way bearing, the one-way bearing being connected to the first shaft.
5. A fan assembly as claimed in claim 3, wherein the second end is threaded such that the second end is threadably coupled to the first end, the threads having the same sense as the second direction.
6. The fan assembly of claim 1, wherein the ball bearing comprises an inner race, an outer race, and balls disposed between the inner race and the outer race, the first shaft being in an interference fit with the inner race to rotate the inner race.
7. The fan assembly of claim 1 further comprising a volute, wherein the number of wind wheels is two and is located at two ends of the dc brushless motor, and the wind wheels are fixed on the first rotating shaft and are located in the corresponding volutes.
8. An air duct machine comprising a fan assembly according to any one of claims 1-7.
9. The ducted air machine according to claim 8, including a housing having a receiving chamber formed therein, the blower assembly being located in the receiving chamber, and one side of the rotating device being fixed to the housing.
10. The ducted air conditioner of claim 9, further comprising a mount, said mount being screw-connected to said housing, said dc brushless motor being mounted on said mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223529034.9U CN219062090U (en) | 2022-12-26 | 2022-12-26 | Fan subassembly and tuber pipe machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223529034.9U CN219062090U (en) | 2022-12-26 | 2022-12-26 | Fan subassembly and tuber pipe machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219062090U true CN219062090U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223529034.9U Active CN219062090U (en) | 2022-12-26 | 2022-12-26 | Fan subassembly and tuber pipe machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219062090U (en) |
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2022
- 2022-12-26 CN CN202223529034.9U patent/CN219062090U/en active Active
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