WO2017190443A1 - 家用电器的摇头机构及家用电器 - Google Patents

家用电器的摇头机构及家用电器 Download PDF

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Publication number
WO2017190443A1
WO2017190443A1 PCT/CN2016/095517 CN2016095517W WO2017190443A1 WO 2017190443 A1 WO2017190443 A1 WO 2017190443A1 CN 2016095517 W CN2016095517 W CN 2016095517W WO 2017190443 A1 WO2017190443 A1 WO 2017190443A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
gear cover
household appliance
limiting member
head bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/095517
Other languages
English (en)
French (fr)
Inventor
罗伟锦
王伟光
杨治光
叶似锦
温文强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Environment Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Publication of WO2017190443A1 publication Critical patent/WO2017190443A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to the field of household appliances, in particular to a rocking head mechanism of a household appliance and a household appliance.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is required to provide a rocking mechanism for a home appliance.
  • the present invention also needs to provide a home appliance.
  • a rocking head mechanism for a household appliance includes a rocking head bracket, a driving device, a gear cover, a driving gear and a base, the driving device is mounted on the moving head bracket, the gear cover and the moving head a bracket fixedly coupled, the drive gear coupled to the drive device, the rocker bracket rotatably coupled to the base, the drive device for driving the drive gear to rotate relative to the base to drive the
  • the rocker bracket is rotated relative to the base to a predetermined position in which the gear cover is used to limit rotation of the rocker bracket to cause the rocker bracket to rotate in a reverse direction.
  • the gear cover when the shaking head bracket is rotated to a predetermined position, the gear cover can restrict the rotation of the moving head bracket and make the moving head bracket reversely rotate, thereby effectively preventing the emergency stop of the moving head bracket and making the household appliance
  • the shaking mechanism of the shaking head mechanism realizes the smooth operation of the moving head mechanism of the household appliance.
  • the gear cover includes a gear cover limiter
  • the base includes a base limit member
  • the gear cover limit member elastically resists the base limit when the predetermined position is Pieces.
  • the gear cover limiting member includes a first limiting member and a second limiting member
  • the base limiting member includes an elastic third limiting member and an elastic fourth limiting member.
  • the predetermined position includes a first position and a second position, wherein the first positional member elastically abuts the third limit member, and in the second position, the second position The limiting member elastically resists the fourth limiting member.
  • the gear cover includes a gear cover stop
  • the base includes a base stop
  • the gear cover limiter when in the predetermined position, the gear cover limiter is in conflict with the base limiter
  • the gear cover stop abuts when it fails
  • the base stopper stops the rotation of the moving head bracket.
  • the gear cover is formed with a first receiving slot, the driving gear is received in the first receiving slot, and the outer cover of the first receiving slot is provided with the gear cover limiting member
  • the base includes a tooth portion, the base is formed with a second receiving groove, the tooth portion is located in the second receiving groove, and the gear cover is rotatably received in the second receiving groove.
  • the driving gear is engaged with the tooth portion, and the inner side wall of the second receiving groove is provided with the base limiting member, and the driving device is configured to drive the driving gear to rotate around the tooth portion to drive The rocker bracket rotates relative to the base.
  • the rocking mechanism of the household appliance includes a fixed mounting plate fixed to the moving head bracket, and the driving device and the gear cover are respectively fixed on opposite sides of the fixed mounting plate.
  • the driving device includes a motor and an output shaft
  • the fixed mounting plate is provided with a first mounting hole
  • the moving head bracket is provided with a shaft hole
  • the output shaft passes through the first mounting hole and The shaft hole connects the drive gear and the motor.
  • the rocker bracket is provided with a first through hole
  • the gear cover is provided with a screw column
  • the screw column is inserted through the first through hole
  • the fixed mounting plate is provided with a threaded hole.
  • the screw post is coupled to the threaded hole by a screw to fix the gear cover to the rocker bracket.
  • the gear cover is provided with a card portion spaced apart from the screw post, and the rocker bracket is provided with a card hole, and the card portion is engaged in the card hole.
  • the gear cover is provided with an accommodating space communicating with the first receiving groove, and an arc-shaped structure formed by the side wall of the accommodating space and an outer arc of the tooth portion The structures are matched, and the teeth are partially received in the accommodating space.
  • the rocker bracket includes a connecting shaft that is rotatably coupled to the base.
  • the rocker mechanism of the household appliance includes a bearing secured in the base, the bearing being in an interference fit with the connecting shaft.
  • the rocking mechanism of the household appliance includes a magnetic element and a magnetic sensing element, the magnetic element is fixed on the base and the magnetic sensing element is fixed on the moving head bracket, or the magnetic sensing element is fixed The magnetic element is fixed on the base and the magnetic element is used to cooperate to detect a rotation angle of the moving head support relative to the base.
  • the gear cover is an integrally formed structure
  • the base is an integrally formed structure
  • the home appliance of the embodiment of the present invention includes the rocking mechanism of the home appliance of any of the above embodiments.
  • the gear cover when the shaking head bracket is rotated to a predetermined position, the gear cover can restrict the rotation of the moving head bracket and make the moving head bracket reversely rotate, thereby effectively preventing the emergency stop of the moving head bracket and causing the shaking head mechanism of the household appliance to appear.
  • the phenomenon of jitter enables the smooth operation of the moving head mechanism of the household appliance.
  • the household appliance includes a vane and a vane driving mechanism for driving the vane to rotate, and the vane driving mechanism is fixed to the front end of the moving head bracket.
  • FIG. 1 is a perspective view of a home appliance according to an embodiment of the present invention.
  • FIG. 2 is another perspective view of a home appliance according to an embodiment of the present invention.
  • FIG. 3 is an exploded perspective view of a home appliance according to an embodiment of the present invention.
  • FIG. 4 is a perspective view of a rocker bracket of a rocking head mechanism of a household appliance according to an embodiment of the present invention.
  • FIG. 5 is a perspective view of a gear cover of a rocking head mechanism of a home appliance according to an embodiment of the present invention.
  • FIG. 6 is another perspective view of a gear cover of a rocking mechanism of a home appliance according to an embodiment of the present invention.
  • FIG. 7 is a perspective view of a base of a rocking mechanism of a home appliance according to an embodiment of the present invention.
  • FIG 8 is another perspective view of the base of the rocking mechanism of the household appliance according to an embodiment of the present invention.
  • FIG. 9 is a perspective view of a fixed mounting plate of a rocking head mechanism of a home appliance according to an embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or Connected in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.
  • a rocking head mechanism 100 for a household appliance includes a rocking head bracket 10 , a driving device 20 , a gear cover 30 , a driving gear 40 , and a base 50 .
  • the driving device 20 is mounted on the moving head holder 10.
  • the gear cover 30 is fixedly coupled to the rocker bracket 10.
  • the drive gear 40 is coupled to the drive unit 20.
  • the shaking head bracket 10 is rotatably coupled to the base 50.
  • the driving device 20 is configured to drive the driving gear 40 to rotate relative to the base 50 to drive the moving head bracket 10 to rotate relative to the base 50 to a predetermined position. In the predetermined position, the gear cover 30 serves to limit the rotation of the rocker holder 10 to cause the rocker holder 10 to rotate in the reverse direction.
  • the gear cover 30 can restrict the rotation of the rocking head bracket 10 and cause the rocking head bracket 10 to rotate in the reverse direction, thereby effectively preventing the shaking head bracket 10 from being rushed.
  • the phenomenon that the shaking device 100 of the household appliance is shaken is stopped, and the smooth operation of the moving head mechanism 100 of the household appliance is realized.
  • the gear cover 30 includes a gear cover stop 31.
  • the base 50 includes a base stop 51. When in the predetermined position, the gear cover limiting member 31 elastically resists the base limiting member 51.
  • the gear cover limiting member 31 elastically resists the base limiting member 51, which can make the moving head bracket 10 buffer and stop rotating after the rotation of the predetermined position, thereby effectively preventing the moving head bracket.
  • the occurrence of an emergency stop causes the shaking mechanism of the household appliance's moving head mechanism 100 to be shaken, thereby improving the smoothness of the operation of the moving head mechanism 100 of the household appliance.
  • the design of the predetermined position determines the setting positions of the gear cover limiting member 31 and the base limiting member 51.
  • the arrangement positions of the gear cover stopper 31 and the base stopper 51 are also different. So, household electricity
  • the rocker mechanism 100 of the device can realize a rotation manner at different angles.
  • the gear cover limiting member 31 includes a first limiting member 31a and a second limiting member (not shown, which is blocked on the other side of the gear cover 30).
  • the base limiting member 51 includes an elastic third limiting member 51a and an elastic fourth limiting member 51b.
  • the predetermined location includes a first location and a second location. In the first position, the first limiting member 31a elastically abuts against the third limiting member 51a. In the second position, the second limiting member elastically resists the fourth limiting member 51b.
  • the first limiting member 31a and the second limiting member are ribs formed on the gear cover 30.
  • the third limiting member 51a and the fourth limiting member 51b are elastic pieces formed on the base 50, and the third limiting member 51a and the fourth limiting member 51b are both substantially J-shaped.
  • the rocker bracket 10 effects a back and forth rotation between the first position and the second position.
  • the shaking head bracket 10 can be buffered and stopped to rotate and then reversely rotated, thereby preventing the shaking head bracket 10 from being suddenly stopped and causing the shaking mechanism of the shaking head mechanism 100 of the household appliance to be shaken. Phenomenon, thereby achieving smooth operation of the moving head mechanism 100 of the household appliance.
  • the angle between the first position and the second position may be set according to a specific situation.
  • the angle between the first position and the second position can be set to 60 degrees, such that the rocker holder 10 can be rotated back and forth over an angular range of 60 degrees.
  • the gear cover 30 includes a gear cover stop 32.
  • the base 50 includes a base stop 52.
  • the gear cover stopper 32 abuts against the base stopper 52 to stop the rotation of the moving head holder 10.
  • the gear cover limiting member 31 cannot be in contact with the base limiting member 51, so that the gear cover limiting member 31 is The contact of the base limiting member 51 fails, and the gear cover blocking member 32 can abut against the base blocking member 52 to stop the rotation of the moving head bracket 10 to prevent the moving head bracket 10 from being in the gear cover limiting member 31 and the base limiting member 51.
  • the number of the gear cover members 32 (see FIG. 5) is two, and the two gear cover members 32 are located on the rotation arc of the gear cover 30, the first limiting member 31a and the second limiting member. between.
  • the gear cover stopper 32 is a rib formed on the gear cover 30.
  • the number of the base blocking members 52 (see FIG. 7) is two, and the two base blocking members 52 are located on the travel path of the driving gear 40, the third limiting member 51a and the fourth limiting member 51b. between.
  • the base stopper 52 is a rib structure formed on the base 50.
  • the gear cover 30 is formed with a first receiving groove 33.
  • the drive gear 40 is received in the first receiving groove 33.
  • a gear cover limiting member 31 is disposed on the outer side wall of the first receiving groove 33.
  • the base 50 includes a tooth portion 53.
  • the base 50 is formed with a second receiving groove 54.
  • the tooth portion 53 is located in the second receiving groove 54.
  • the gear cover 30 is rotatably received in the second receiving groove 54.
  • the drive gear 40 meshes with the tooth portion 53.
  • a base limiting member 51 is disposed on the inner side wall of the second receiving groove 54.
  • the driving device 20 is configured to drive the driving gear 40 to rotate around the tooth portion 53 to drive the moving head bracket 10 to rotate relative to the base 50.
  • the driving device 20 drives the driving gear 40 to rotate around the tooth portion 53 to drive the rocking head bracket 10 to rotate to a predetermined position relative to the base 50
  • the gear cover limiting member 31 disposed on the outer side wall of the first receiving groove 33 is provided.
  • the pedestal stopper 51 disposed on the inner side wall of the second accommodating groove 54 is elastically resisted, so that the yoke holder 10 is rotatably rotated after being stopped at a predetermined position.
  • the reversing rotation of the rocking head bracket 10 can be realized by the gear cover limiting member 31 elastically resisting the base limiting member 51, and the position is not required by other parts, thereby saving cost.
  • the driving gear 40 is received in the first receiving groove 33 to ensure the parallelism of the driving gear 40 and the tooth portion 53, so that the shaking mechanism of the household appliance can be effectively prevented from rotating due to the deflection of the driving gear 40 and the tooth portion 53. There are problems such as spurs and jitter.
  • the gear cover 30 is rotatably received in the second receiving groove 54 to ensure the installation space required for the gear cover 30 to rotate, and the interference of the base 50 to the rotation of the gear cover 30 can be effectively avoided, and the household appliance can also be
  • the moving head mechanism 100 is more compact.
  • the first limiting member 31a and the second limiting member are spaced apart from each other on the outer sidewall 331 of the first receiving slot 33.
  • the third limiting member 51a and the fourth limiting member 51b are spaced apart from each other on the inner side wall 541 of the second receiving groove 54.
  • the driving device 20 drives the driving gear 40 to rotate around the tooth portion 53 to drive the moving head bracket 10 to rotate relative to the base 50 between the first position and the second position.
  • the rocker mechanism 100 of the household appliance includes a fixed mounting plate 60 that is secured to the rocker mount 10.
  • the driving device 20 and the gear cover 30 are respectively fixed on opposite sides of the fixed mounting plate 60.
  • the driving device 20 and the gear cover 30 are respectively fixed on opposite sides of the fixed mounting plate 60, so that the weight distribution of the driving device 20 and the gear cover 30 is more uniform, and the structural stability of the moving head mechanism 100 of the household appliance is improved.
  • the rocker bracket 10 includes a first mounting surface 11 and a second mounting surface 12 opposite the first mounting surface 11.
  • the drive unit 20 is fixed to the first mounting surface 11.
  • the gear cover 30 is fixed to the second mounting surface 12.
  • the weight distribution of the moving head mechanism 100 of the household appliance is balanced, and the problem that the shaking mechanism of the household appliance can be deflected or shaken due to uneven weight distribution, and the use of the moving head mechanism 100 of the household appliance is improved. Sex.
  • the drive device 20 includes a motor 21 and an output shaft 22.
  • the fixed mounting plate 60 is provided with a first mounting hole 61.
  • the rocking head bracket 10 is provided with a shaft hole 13.
  • the output shaft 22 is disposed through the first mounting hole 61 and the shaft hole 13 The drive gear 40 and the motor 21 are connected.
  • the motor 21 is used to drive the output shaft 22 to rotate, and then the output shaft 22 drives the drive gear 40 to rotate.
  • the output shaft 22 passes through the first mounting hole 61 and the shaft hole 13 to connect the driving gear 40 and the motor 21, thereby ensuring the stability of the connection of the motor 21 and the driving gear 40, thereby more effectively avoiding the motor 21 and the driving gear 40.
  • there are problems such as spurs and jitter.
  • the rocker bracket 10 is provided with a first through hole 14 .
  • the gear cover 30 is provided with a screw post 34.
  • the screw post 34 is bored through the first through hole 14 .
  • the fixed mounting plate 60 is provided with a threaded hole 62.
  • the screw post 34 is engaged with the threaded hole 62 by screws to fix the gear cover 30 to the rocker bracket 10.
  • the gear cover 30 is fixedly coupled to the rocking head bracket 10 by the screw column 34 and the screw.
  • the gear cover 30 is provided with a card portion 35 (see FIG. 5) spaced from the screw post 34.
  • the rocking head bracket 10 is provided with a card hole 15 (see Fig. 4). The card portion 35 is snapped into the card hole 15.
  • the gear cover 30 when the gear cover 30 is mounted, the gear cover 30 can be firstly positioned on the rocker bracket 10 by the card portion 35, and then the gear cover 30 and the fixed mounting plate 60 can be locked by screws. In this way, the gear cover 30 can be quickly positioned and fixed on the moving head bracket 10. At the same time, the gear cover 30 is connected to the moving head bracket 10 and the fixed mounting plate 60 to make the connection of the gear cover 30 more stable, further ensuring the driving gear 40 and the tooth portion. The mating parallelism of 53.
  • the rocker bracket 10 includes a connecting shaft 16.
  • the connecting shaft 16 is rotatably coupled to the base 50.
  • the driving device 20 drives the driving gear 40 to rotate
  • the driving gear 40 rotates around the tooth portion 53 to drive the connecting shaft 16 to rotate, thereby realizing the rotation of the moving head bracket 10.
  • the rocking head holder 10 is connected to the base 50 via the connecting shaft 16, and has a simple structure.
  • the rocker mechanism 100 of the household appliance includes a bearing 531 that is secured in the base 50.
  • the bearing 531 has an interference fit with the connecting shaft 16.
  • the bearing 531 is disposed in the tooth portion 53.
  • the bearing 531 and the moving head bracket 10 are interference fit, which ensures that the axis of the base 50 is perpendicular to the moving head bracket 10, thereby effectively preventing the shaking of the shaking head mechanism 100 of the household appliance during operation.
  • the fixed mounting plate 60 is provided with a second mounting hole 63.
  • the connecting shaft 16 is disposed through the second mounting hole 63.
  • the second mounting hole 63 of the connecting shaft 16 that is passed through the fixed mounting plate 60 ensures the stability of the rotation of the connecting shaft 16.
  • the connecting shaft 16 is a hollow structure, and when the moving head mechanism 100 of the household appliance is applied to a household appliance, For example, in the case of a fan, the connecting wire of the motor that drives the blade to rotate can be passed through the connecting shaft 16. Since the connecting shaft 16 is passed through the second mounting hole 63, the connecting wire can be prevented from being scratched.
  • the gear cover 30 is provided with an accommodation space 36 that communicates with the first receiving groove 33 .
  • the arc-shaped structure 361 formed by the side wall of the accommodating space 36 matches the outer peripheral arc-like structure 532 of the tooth portion 53.
  • the tooth portion 53 is partially housed in the accommodating space 36.
  • the head mechanism 100 of the household appliance includes a magnetic element (not shown) and a magnetic sensing element (not shown).
  • the magnetic member is fixed to the base 50 and the magnetic sensing element is fixed to the moving head holder 10.
  • the magnetic element and the magnetic sensing element are used to cooperate to detect the angle of rotation of the moving head holder 10 relative to the base 50.
  • the base 50 is provided with a receiving portion 55 for fixing the magnetic element
  • the magnetic element can be fixed in the receiving portion 55 by an interference fit
  • the magnetic sensing element can be disposed on the moving head bracket 10 facing the base 50.
  • the magnetic sensing element can be mounted on the second mounting surface 12.
  • the magnetic element is a magnet and the magnetic sensing element is a Hall element.
  • the magnetic sensing element determines the position of the moving head holder 10 according to the change of the magnetic field of the magnetic element.
  • the magnetic sensing element is attached to the base and the magnetic element is secured to the rocker bracket.
  • the magnetic element and the magnetic sensing element are used to cooperate to detect the angle of rotation of the moving head bracket relative to the base.
  • the gear cover 30 is an integrally formed structure.
  • the base 50 is an integrally formed structure.
  • the gear cover limiting member 31 and the base limiting member 51 can be processed by an injection molding process.
  • the processing is convenient, and the cost of the moving head mechanism 100 of the home appliance is reduced.
  • the head mechanism 100 of the household appliance includes a strut tube 70 (see FIG. 2).
  • the base 50 is provided with a connecting portion 56.
  • the connecting portion 56 is fixedly coupled to the strut tube 70.
  • the strut tube 70 simultaneously has the function of supporting and stabilizing the susceptor 50, thus ensuring the stability of the oscillating mechanism 100 of the household appliance.
  • the home appliance 200 of the embodiment of the present invention includes the rocking mechanism 100 of the home appliance of any of the above embodiments.
  • the gear cover 30 can restrict the rotation of the oscillating weight bracket 10 and cause the oscillating head bracket 10 to rotate in the reverse direction, thereby effectively preventing the swaying head bracket 10 from being suddenly stopped.
  • the phenomenon that the shaking mechanism 100 of the household appliance is shaken, and the smooth operation of the moving head mechanism 100 of the home appliance is realized. Thereby, the stability of the home appliance 200 is improved.
  • the home appliance 200 is exemplified by a fan.
  • the household appliance 200 includes a blade 210 and a blade drive mechanism 220 (see FIG. 1) for driving the rotation of the blade 210.
  • the blade drive mechanism 220 is fixed to the shake The front end of the head bracket 100.
  • the blade drive mechanism 220 is a motor. It can be understood that other household appliances that need to use the moving head mechanism can also adopt the moving head mechanism 100 of the household appliance of the above embodiment. In this manner, the home appliance 200 rotates the rocker holder 10 relative to the base 50 by the driving device 20 to achieve air supply.
  • the driving device 20 and the blade driving mechanism 220 are all disposed on the moving head bracket 10, which makes the home appliance 200 have high structural strength and good reliability.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transmission Devices (AREA)

Abstract

一种家用电器的摇头机构（100），其包括摇头支架（10）、驱动装置（20）、齿轮罩（30）、驱动齿轮（40）及基座（50），驱动装置（20）安装于摇头支架（10）上，齿轮罩（30）与摇头支架（10）固定连接，驱动齿轮（40）与驱动装置（20）连接，摇头支架（10）可转动地连接基座（50），驱动装置（20）用于驱动驱动齿轮（40）相对于基座（50）转动以带动摇头支架（10）相对于基座（50）转动至预定位置，在预定位置时，齿轮罩（30）用于限制摇头支架（10）的转动以使得摇头支架（10）换向转动。该家用电器的摇头机构（100）中，在摇头支架（10）转动至预定位置时，齿轮罩（30）可以限制摇头支架（10）的转动并使得摇头支架（10）换向转动，从而有效防止摇头支架（10）出现急停而使家用电器的摇头机构（100）出现抖动的现象。

Description

家用电器的摇头机构及家用电器
优先权信息
本申请请求2016年05月04日向中国国家知识产权局提交的、专利申请号为201610290265.9的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本发明涉及家用电器领域，具体涉及一种家用电器的摇头机构和一种家用电器。
背景技术
目前，具有摇头功能的家用电器，如风扇在转向摇头时，家用电器的头部容易出现急停的现象，使得家用电器的头部出现抖动，从而导致家用电器运行的稳定性较差。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明需要提供一种家用电器的摇头机构。
本发明还需要提供一种家用电器。
根据本发明实施方式的一种家用电器的摇头机构，包括摇头支架、驱动装置、齿轮罩、驱动齿轮及基座，所述驱动装置安装于所述摇头支架上，所述齿轮罩与所述摇头支架固定连接，所述驱动齿轮与所述驱动装置连接，所述摇头支架可转动地连接所述基座，所述驱动装置用于驱动所述驱动齿轮相对于所述基座转动以带动所述摇头支架相对于所述基座转动至预定位置，在所述预定位置时，所述齿轮罩用于限制所述摇头支架的转动以使得所述摇头支架换向转动。
本发明实施方式的家用电器的摇头机构中，在摇头支架转动至预定位置时，齿轮罩可以限制摇头支架的转动并使得摇头支架换向转动，从而有效防止摇头支架出现急停而使家用电器的摇头机构出现抖动的现象，实现了家用电器的摇头机构平稳的运行。
在一个实施方式中，所述齿轮罩包括齿轮罩限位件，所述基座包括基座限位件，在所述预定位置时，所述齿轮罩限位件弹性抵触所述基座限位件。
在一个实施方式中，所述齿轮罩限位件包括第一限位件及第二限位件，所述基座限位件包括弹性的第三限位件及弹性的第四限位件，所述预定位置包括第一位置及第二位置，在所述第一位置时，所述第一限位件弹性抵触所述第三限位件，在所述第二位置时，所述第二限位件弹性抵触所述第四限位件。
在一个实施方式中，所述齿轮罩包括齿轮罩挡件，所述基座包括基座挡件，当在所述预定位置，所述齿轮罩限位件与所述基座限位件的抵触失效时，所述齿轮罩挡件抵靠 所述基座挡件以停止所述摇头支架的转动。
在一个实施方式中，所述齿轮罩形成有第一收容槽，所述驱动齿轮收容于所述第一收容槽中，所述第一收容槽的外侧壁上设置有所述齿轮罩限位件，所述基座包括齿部，所述基座形成有第二收容槽，所述齿部位于所述第二收容槽内，所述齿轮罩可转动地收容于所述第二收容槽内，所述驱动齿轮与所述齿部啮合，所述第二收容槽的内侧壁上设置有所述基座限位件，所述驱动装置用于驱动所述驱动齿轮绕所述齿部转动以带动所述摇头支架相对于所述基座转动。
在一个实施方式中，所述家用电器的摇头机构包括固定在所述摇头支架上的固定安装板，所述驱动装置及所述齿轮罩分别固定在所述固定安装板相背的两侧。
在一个实施方式中，所述驱动装置包括电机及输出轴，所述固定安装板开设有第一安装孔，所述摇头支架开设有轴孔，所述输出轴穿设所述第一安装孔及所述轴孔而连接所述驱动齿轮及所述电机。
在一个实施方式中，所述摇头支架开设有第一通孔，所述齿轮罩设置有螺钉柱，所述螺钉柱穿设所述第一通孔，所述固定安装板开设有螺纹孔，所述螺钉柱通过螺钉与所述螺纹孔配合而将所述齿轮罩固定在所述摇头支架上。
在一个实施方式中，所述齿轮罩设置有与所述螺钉柱间隔的卡部，所述摇头支架开设有卡孔，所述卡部卡设于所述卡孔中。
在一个实施方式中，所述齿轮罩开设有与所述第一收容槽连通的容置空间，所述容置空间的侧壁所形成的圆弧状结构与所述齿部的外周圆弧状结构相匹配，所述齿部部分地收容于所述容置空间中。
在一个实施方式中，所述摇头支架包括连接轴，所述连接轴与所述基座可转动地连接。
在一个实施方式中，所述家用电器的摇头机构包括固定在所述基座中的轴承，所述轴承与所述连接轴过盈配合。
在一个实施方式中，所述家用电器的摇头机构包括磁性元件及磁感应元件，所述磁性元件固定在所述基座上且所述磁感应元件固定在所述摇头支架上，或所述磁感应元件固定在所述基座上且所述磁性元件固定在所述摇头支架上，所述磁性元件与所述磁感应元件用于配合检测所述摇头支架相对于所述基座的转动角度。
在一个实施方式中，所述齿轮罩为一体成型结构，所述基座为一体成型结构。
本发明实施方式的家用电器包括上述任一实施方式的家用电器的摇头机构。
本发明实施方式的家用电器中，在摇头支架转动至预定位置时，齿轮罩可以限制摇头支架的转动并使得摇头支架换向转动，从而有效防止摇头支架出现急停而使家用电器的摇头机构出现抖动的现象，实现了家用电器的摇头机构平稳的运行。
在一个实施方式中，所述家用电器包括风叶及用于驱动所述风叶转动的风叶驱动机构，所述风叶驱动机构固设于所述摇头支架前端。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是根据本发明实施方式的家用电器的立体示意图。
图2是根据本发明实施方式的家用电器的另一立体示意图。
图3是根据本发明实施方式的家用电器的分解示意图。
图4是根据本发明实施方式的家用电器的摇头机构的摇头支架的立体示意图。
图5是根据本发明实施方式的家用电器的摇头机构的齿轮罩的立体示意图。
图6是根据本发明实施方式的家用电器的摇头机构的齿轮罩的另一立体示意图。
图7是根据本发明实施方式的家用电器的摇头机构的基座的立体示意图。
图8是根据本发明实施方式的家用电器的摇头机构的基座的另一立体示意图。
图9是根据本发明实施方式的家用电器的摇头机构的固定安装板的立体示意图。
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或 一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1～图9，本发明实施方式的一种家用电器的摇头机构100包括摇头支架10、驱动装置20、齿轮罩30、驱动齿轮40及基座50。驱动装置20安装于摇头支架10上。齿轮罩30与摇头支架10固定连接。驱动齿轮40与驱动装置20连接。摇头支架10可转动地连接基座50。驱动装置20用于驱动驱动齿轮40相对于基座50转动以带动摇头支架10相对于基座50转动至预定位置。在预定位置时，齿轮罩30用于限制摇头支架10的转动以使得摇头支架10换向转动。
本发明实施方式的家用电器的摇头机构100中，在摇头支架10转动至预定位置时，齿轮罩30可以限制摇头支架10的转动并使得摇头支架10换向转动，从而有效防止摇头支架10出现急停而使家用电器的摇头机100构出现抖动的现象，实现了家用电器的摇头机构100平稳的运行。
在一个实施方式中，齿轮罩30包括齿轮罩限位件31。基座50包括基座限位件51。在预定位置时，齿轮罩限位件31弹性抵触基座限位件51。
如此，在摇头支架10转动至预定位置时，齿轮罩限位件31弹性抵触基座限位件51，这可使摇头支架10在预定位置时缓冲停止转动后换向转动，从而有效防止摇头支架10出现急停而使家用电器的摇头机构100出现抖动的现象，从而提高了家用电器的摇头机构100运行的平稳性。
具体地，预定位置的设计决定了齿轮罩限位件31及基座限位件51的设置位置。当预定位置不同时，齿轮罩限位件31及基座限位件51的设置位置也不同。如此，家用电 器的摇头机构100可实现不同角度的转动方式。
在本发明实施方式中，齿轮罩限位件31包括第一限位件31a及第二限位件(图未示出，在齿轮罩30另一侧，被遮挡)。基座限位件51包括弹性的第三限位件51a及弹性的第四限位件51b。预定位置包括第一位置及第二位置。在第一位置时，第一限位件31a弹性抵触第三限位件51a。在第二位置时，第二限位件弹性抵触第四限位件51b。
具体地，本发明实施方式中，第一限位件31a及第二限位件为形成在齿轮罩30上的筋位。第三限位件51a及第四限位件51b为形成在基座50上的弹片，第三限位件51a及第四限位件51b均大致呈J型。
在第一位置时，第一限位件31a弹性抵触第三限位件51a。从而使得摇头支架10缓冲停止转动，然后再换向朝第二位置转动。在第二位置时，第二限位件弹性抵触第四限位件51b，从而使得摇头支架10缓冲停止转动，然后再换向朝第一位置转动。如此，摇头支架10实现了在第一位置及第二位置之间的来回转动。
如此，在摇头支架10转至第一位置及第二位置的时候，可使摇头支架10缓冲停止转动后换向转动，从而防止摇头支架10出现急停而使家用电器的摇头机构100出现抖动的现象，从而实现家用电器的摇头机构100平稳的运行。
具体地，本发明实施方式中，第一位置及第二位置之间的角度可根据具体实际情况进行设置。例如，第一位置及第二位置之间的角度可设置为60度，如此，可使得摇头支架10在60度的角度范围内来回转动。
在一个实施方式中，齿轮罩30包括齿轮罩挡件32。基座50包括基座挡件52。当在预定位置，齿轮罩限位件31与基座限位件51的抵触失效时，齿轮罩挡件32抵靠基座挡件52以停止摇头支架10的转动。
如此，在一个例子中，当基座限位件51折断时，摇头支架10转动至预定位置时，齿轮罩限位件31无法与基座限位件51抵触，使齿轮罩限位件31与基座限位件51的抵触失效，齿轮罩挡件32可以抵靠基座挡件52以停止摇头支架10的转动，以防止摇头支架10在齿轮罩限位件31与基座限位件51的抵触失效后继续单向转动，从而防止由于齿轮罩限位件31与基座限位件51的抵触失效而引起危险的发生，例如，可防止失去控制而处于转动状态的摇头支架10划破引线而导致漏电的危险。
在本发明实施方式中，齿轮罩挡件32(见图5)的数量为两个，两个齿轮罩挡件32位于齿轮罩30转动弧线上第一限位件31a及第二限位件之间。齿轮罩挡件32为形成在齿轮罩30上的筋位。
在本发明实施方式中，基座挡件52(见图7)的数量为两个，两个基座挡件52位于驱动齿轮40行程路线上第三限位件51a及第四限位件51b之间。基座挡件52为形成在基座50上的筋位结构。
在一个实施方式中，齿轮罩30形成有第一收容槽33。驱动齿轮40收容于第一收容槽33中。第一收容槽33的外侧壁上设置有齿轮罩限位件31。基座50包括齿部53。基座50形成有第二收容槽54。齿部53位于第二收容槽54内。齿轮罩30可转动地收容于第二收容槽54内。驱动齿轮40与齿部53啮合。第二收容槽54的内侧壁上设置有基座限位件51。驱动装置20用于驱动驱动齿轮40绕齿部53转动以带动摇头支架10相对于基座50转动。
具体地，当驱动装置20驱动驱动齿轮40绕齿部转53动以带动摇头支架10相对于基座50转动至预定位置时，第一收容槽33的外侧壁上设置的齿轮罩限位件31弹性抵触第二收容槽54的内侧壁上设置的基座限位件51，从而实现摇头支架10在预定位置时缓冲停止转动后换向转动。
如此设置，可简单通过齿轮罩限位件31弹性抵触基座限位件51实现摇头支架10的换向转动，无需借助其他零件进行限位，节约成本。并且，驱动齿轮40收容于第一收容槽33内可保证驱动齿轮40与齿部53配合的平行度，从而可有效避免因驱动齿轮40与齿部53配合偏转而导致家用电器的摇头机构100转动时出现疾步、抖动等问题。
进一步地，齿轮罩30可转动地收容于第二收容槽54内，保证了齿轮罩30转动所需要的设置空间，也可有效避免基座50对齿轮罩30转动的干扰，也能够使家用电器的摇头机构100更紧凑。
具体地，在本发明实施方式中，第一限位件31a及第二限位件间隔设置于第一收容槽33的外侧壁331上。第三限位件51a及第四限位件51b间隔设置于第二收容槽54的内侧壁541上。驱动装置20驱动驱动齿轮40绕齿部53转动以带动摇头支架10相对于基座50在第一位置及第二位置之间转动。
在一个实施方式中，家用电器的摇头机构100包括固定在摇头支架10上的固定安装板60。驱动装置20及齿轮罩30分别固定在固定安装板60相背的两侧。
因此，驱动装置20及齿轮罩30分别固定在固定安装板60相背的两侧可使得驱动装置20与齿轮罩30的重量分布更加均匀，提高了家用电器的摇头机构100的结构稳定性。
在一个实施方式中，摇头支架10包括第一安装面11及与第一安装面11相背的第二安装面12。驱动装置20固定于第一安装面11上。齿轮罩30固定于第二安装面12上。
因此，这样使得家用电器的摇头机构100的重量分布均衡，有效避免了家用电器的摇头机构100因重量分布不均匀而可能出现偏转或者晃动的问题，同时提高了家用电器的摇头机构100的使用可靠性。
在一个实施方式中，驱动装置20包括电机21及输出轴22。固定安装板60开设有第一安装孔61。摇头支架10开设有轴孔13。输出轴22穿设第一安装孔61及轴孔13 而连接驱动齿轮40及电机21。
具体地，本发明实施方式中，电机21用于驱动输出轴22转动，再由输出轴22带动驱动齿轮40转动。
如此，输出轴22穿设第一安装孔61及轴孔13而连接驱动齿轮40及电机21，保证了电机21与驱动齿轮40连接的稳定性，从而更有效地避免因电机21与驱动齿轮40配合偏转而导致出现疾步、抖动等问题。
在一个实施方式中，摇头支架10开设有第一通孔14。齿轮罩30设置有螺钉柱34。螺钉柱34穿设第一通孔14。固定安装板60开设有螺纹孔62。螺钉柱34通过螺钉与螺纹孔62配合而将齿轮罩30固定在摇头支架10上。
齿轮罩30通过螺钉柱34与螺钉配合而与摇头支架10固定连接，如此，连接结构简单、牢固，有效地保证了驱动装置20与驱动齿轮40的精确组装，从而有效地提高了家用电器的摇头机构100的使用可靠性。
在一个实施方式中，齿轮罩30设置有与螺钉柱34间隔的卡部35(见图5)。摇头支架10开设有卡孔15(见图4)。卡部35卡设于卡孔15中。
具体地，在安装齿轮罩30时，可先通过卡部35卡设于卡孔15而将齿轮罩30定位于摇头支架10上，之后再通过螺钉将齿轮罩30与固定安装板60锁紧，这样可将齿轮罩30快速定位及固定在摇头支架10上，同时，齿轮罩30通过与摇头支架10及固定安装板60连接使得齿轮罩30的连接更加稳定，进一步保证了驱动齿轮40与齿部53的配合平行度。
在一个实施方式中，摇头支架10包括连接轴16。连接轴16与基座50可转动地连接。
如此，当驱动装置20驱动驱动齿轮40转动时，驱动齿轮40围绕齿部53转动以带动连接轴16转动，从而实现带动摇头支架10转动。并且，摇头支架10通过连接轴16与基座50连接，结构简单。
在一个实施方式中，家用电器的摇头机构100包括固定在基座50中的轴承531。轴承531与连接轴16过盈配合。
具体地，在本发明实施方式中，轴承531设置在齿部53中。
如此，轴承531与摇头支架10过盈配合，保证了基座50的轴线与摇头支架10垂直，从而可有效防止家用电器的摇头机构100运行过程中出现晃动。
在一个实施方式中，固定安装板60开设有第二安装孔63。连接轴16穿设于第二安装孔63。
连接轴16穿设于固定安装板60的第二安装孔63保证了连接轴16转动的稳定性。在一个例子中，连接轴16为中空结构，当家用电器的摇头机构100应用于家用电器， 如风扇时，驱动风叶转动的电机的连接线可从连接轴16中穿出，由于连接轴16穿设于第二安装孔63，因此可防止上述连接线被刮破。
在一个实施方式中，齿轮罩30开设有与第一收容槽33连通的容置空间36。容置空间36的侧壁所形成的圆弧状结构361与齿部53的外周圆弧状结构532相匹配。齿部53部分地收容于容置空间36中。
因此，这样可有效防止驱动齿轮40与齿部53的相互干涉，避免家用电器的摇头机构100转动时出现疾步、抖动等问题。
在一个实施方式中，家用电器的摇头机构100包括磁性元件(图未示出)及磁感应元件(图未示出)。磁性元件固定在基座50上且磁感应元件固定在摇头支架10上。磁性元件与磁感应元件用于配合检测摇头支架10相对于基座50的转动角度。
具体地，本发明实施方式中，基座50设置有固定磁性元件的收容部55，磁性元件可通过过盈配合固定在收容部55中，而磁感应元件可设置在朝向基座50的摇头支架10的表面上，例如，在本发明实施方式中，磁感应元件可安装在第二安装面12上。在一个例子中，磁性元件是磁铁，磁感应元件是霍尔元件。
当驱动装置20用于驱动驱动齿轮40绕齿部53转动以带动摇头支架10相对于基座50转动时，磁感应元件根据磁性元件磁场的变化来确定摇头支架10的位置。
可以理解，在其他实施方式中，磁感应元件固定在基座上且磁性元件固定在摇头支架上。磁性元件与磁感应元件用于配合检测摇头支架相对于基座的转动角度。
在一个实施方式中，齿轮罩30为一体成型结构。基座50为一体成型结构。
例如，可通过注塑成型工艺加工出齿轮罩限位件31及基座限位件51。如此，加工方便，降低了家用电器的摇头机构100的成本。
在一个实施方式中，家用电器的摇头机构100包括支柱管70(见图2)。基座50设置有连接部56。连接部56固定连接支柱管70。
具体地，支柱管70同时具有支撑及稳固基座50的作用，如此保证了家用电器的摇头机构100的稳定性。
本发明实施方式的家用电器200包括上述任一实施方式的家用电器的摇头机构100。
本发明实施方式的家用电器200中，在摇头支架10转动至预定位置时，齿轮罩30可以限制摇头支架10的转动并使得摇头支架10换向转动，从而有效防止摇头支架10出现急停而使家用电器的摇头机构100出现抖动的现象，实现了家用电器的摇头机构100平稳的运行。从而提高了家用电器200的稳定性。
在本发明实施方式中，家用电器200以风扇为例说明。家用电器200包括风叶210及用于驱动风叶210转动的风叶驱动机构220(见图1)。风叶驱动机构220固设于摇 头支架100前端。具体地，风叶驱动机构220为电机。可以理解，其它需要使用摇头机构的家用电器也可采用以上实施方式的家用电器的摇头机构100。如此，家用电器200通过驱动装置20使摇头支架10相对于基座50转动，以实现送风。
同时，驱动装置20及风叶驱动机构220均设置在摇头支架10上，这使得家用电器200的结构强度高，可靠性好。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (16)

  1. 一种家用电器的摇头机构，其特征在于，包括：
    摇头支架；
    驱动装置，所述驱动装置安装于所述摇头支架上；
    齿轮罩，所述齿轮罩与所述摇头支架固定连接；
    驱动齿轮，所述驱动齿轮与所述驱动装置连接；
    基座，所述摇头支架可转动地连接所述基座；
    所述驱动装置用于驱动所述驱动齿轮相对于所述基座转动以带动所述摇头支架相对于所述基座转动至预定位置，在所述预定位置时，所述齿轮罩用于限制所述摇头支架的转动以使得所述摇头支架换向转动。
  2. 根据权利要求1所述的家用电器的摇头机构，其特征在于，所述齿轮罩包括齿轮罩限位件，所述基座包括基座限位件，在所述预定位置时，所述齿轮罩限位件弹性抵触所述基座限位件。
  3. 根据权利要求2所述的家用电器的摇头机构，其特征在于，所述齿轮罩限位件包括第一限位件及第二限位件，所述基座限位件包括弹性的第三限位件及弹性的第四限位件，所述预定位置包括第一位置及第二位置；
    在所述第一位置时，所述第一限位件弹性抵触所述第三限位件；
    在所述第二位置时，所述第二限位件弹性抵触所述第四限位件。
  4. 根据权利要求2所述的家用电器的摇头机构，其特征在于，所述齿轮罩包括齿轮罩挡件，所述基座包括基座挡件，当在所述预定位置，所述齿轮罩限位件与所述基座限位件的抵触失效时，所述齿轮罩挡件抵靠所述基座挡件以停止所述摇头支架的转动。
  5. 根据权利要求2所述的家用电器的摇头机构，其特征在于，所述齿轮罩形成有第一收容槽，所述驱动齿轮收容于所述第一收容槽中，所述第一收容槽的外侧壁上设置有所述齿轮罩限位件；
    所述基座包括齿部，所述基座形成有第二收容槽，所述齿部位于所述第二收容槽内，所述齿轮罩可转动地收容于所述第二收容槽内，所述驱动齿轮与所述齿部啮合，所述第二收容槽的内侧壁上设置有所述基座限位件；
    所述驱动装置用于驱动所述驱动齿轮绕所述齿部转动以带动所述摇头支架相对于 所述基座转动。
  6. 根据权利要求1所述的家用电器的摇头机构，其特征在于，所述家用电器的摇头机构包括固定在所述摇头支架上的固定安装板，所述驱动装置及所述齿轮罩分别固定在所述固定安装板相背的两侧。
  7. 根据权利要求6所述的家用电器的摇头机构，其特征在于，所述驱动装置包括电机及输出轴，所述固定安装板开设有第一安装孔，所述摇头支架开设有轴孔，所述输出轴穿设所述第一安装孔及所述轴孔而连接所述驱动齿轮及所述电机。
  8. 根据权利要求6所述的家用电器的摇头机构，其特征在于，所述摇头支架开设有第一通孔，所述齿轮罩设置有螺钉柱，所述螺钉柱穿设所述第一通孔；
    所述固定安装板开设有螺纹孔，所述螺钉柱通过螺钉与所述螺纹孔配合而将所述齿轮罩固定在所述摇头支架上。
  9. 根据权利要求8所述的家用电器的摇头机构，其特征在于，所述齿轮罩设置有与所述螺钉柱间隔的卡部，所述摇头支架开设有卡孔，所述卡部卡设于所述卡孔中。
  10. 根据权利要求5所述的家用电器的摇头机构，其特征在于，所述齿轮罩开设有与所述第一收容槽连通的容置空间，所述容置空间的侧壁所形成的圆弧状结构与所述齿部的外周圆弧状结构相匹配，所述齿部部分地收容于所述容置空间中。
  11. 根据权利要求1所述的家用电器的摇头机构，其特征在于，所述摇头支架包括连接轴，所述连接轴与所述基座可转动地连接。
  12. 根据权利要求11所述的家用电器的摇头机构，其特征在于，所述家用电器的摇头机构包括固定在所述基座中的轴承，所述轴承与所述连接轴过盈配合。
  13. 根据权利要求1所述的家用电器的摇头机构，其特征在于，所述家用电器的摇头机构包括磁性元件及磁感应元件，所述磁性元件固定在所述基座上且所述磁感应元件固定在所述摇头支架上，或所述磁感应元件固定在所述基座上且所述磁性元件固定在所述摇头支架上；
    所述磁性元件与所述磁感应元件用于配合检测所述摇头支架相对于所述基座的转 动角度。
  14. 根据权利要求1所述的家用电器的摇头机构，其特征在于，所述齿轮罩为一体成型结构，所述基座为一体成型结构。
  15. 一种家用电器，其特征在于，包括根据权利要求1-14任意一项所述的家用电器的摇头机构。
  16. 根据权利要求15所述的家用电器，其特征在于，所述家用电器包括风叶及用于驱动所述风叶转动的风叶驱动机构，所述风叶驱动机构固设于所述摇头支架前端。
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