WO2017054709A1 - 一种便于轴承精准安装的吊扇转子 - Google Patents

一种便于轴承精准安装的吊扇转子 Download PDF

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Publication number
WO2017054709A1
WO2017054709A1 PCT/CN2016/100398 CN2016100398W WO2017054709A1 WO 2017054709 A1 WO2017054709 A1 WO 2017054709A1 CN 2016100398 W CN2016100398 W CN 2016100398W WO 2017054709 A1 WO2017054709 A1 WO 2017054709A1
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WO
WIPO (PCT)
Prior art keywords
bearing
rotor
tile fixing
mounting portion
mounting
Prior art date
Application number
PCT/CN2016/100398
Other languages
English (en)
French (fr)
Inventor
张建生
Original Assignee
佛山市启正电气有限公司
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 佛山市启正电气有限公司 filed Critical 佛山市启正电气有限公司
Publication of WO2017054709A1 publication Critical patent/WO2017054709A1/zh
Priority to US15/939,337 priority Critical patent/US10511206B2/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/062—Details of the bearings
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/064—Details of the rotor
    • 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
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0646—Details of the stator
    • 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
    • F04D25/088—Ceiling 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/165—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the utility model relates to the field of ceiling fan equipment, in particular to a ceiling fan rotor which facilitates accurate installation of bearings.
  • the motor casing of most DC ceiling fans on the market includes an upper casing and a lower casing, and the center positions of the upper casing and the lower casing are respectively mounted with bearings, and the stator and rotor of the motor are disposed between the upper casing and the lower casing, and the fan blades of the ceiling fan Installed in the upper housing.
  • the precision of the production and installation of the motor parts is very high: the coaxiality of the upper and lower casings is required to be extremely strict to ensure that the two bearings are mounted to the upper and lower parts respectively.
  • the outer casing and the rotating shaft of the ceiling fan pass through the bearings of the upper outer casing, the stator and the bearing of the lower outer casing in turn, and can still be in a vertical state, and the fan blades rotate smoothly, thereby avoiding problems such as fan blade vibration and noise caused by bearing installation deviation. It seems to be a simple structure, but in reality production, it is difficult to ensure the coaxiality of the upper and lower outer casings. Any one of the outer casings may have pits or the inclination of a certain position and the inclination of the adjacent position. The geometric center of the outer casing is offset from the normal position, which in turn causes the rotating shaft to be unable to be installed with the upper and lower outer casings.
  • the above existing structure and extremely high precision requirements invisibly increase the process steps of the ceiling fan production and reduce the production efficiency.
  • the fan blade of the prior art is installed on the outer casing of the ceiling fan motor, and the motor needs to drive the upper outer casing and the lower outer casing to rotate, so that the fan blade can be rotated by the upper outer casing or the lower outer casing, and the energy consumption is large, and the rotating ceiling fan motor casing cannot meet the requirements.
  • electric fans such as the addition of some lighting
  • the functional expansion requirements the product can not adapt to more and more diversified market requirements; and even if satisfied, the structure of the ceiling fan will become quite complex and cannot be promoted.
  • the object of the present invention is to propose a ceiling fan that facilitates accurate mounting of bearings.
  • the rotor and bearing mount are integrated on one side of the rotor.
  • the shaft is quick and easy to install, and the coaxiality of each component is high.
  • a ceiling fan rotor for facilitating accurate mounting of a bearing comprising a rotating shaft, a stator and a rotor, the stator being housed in an inner ring cavity of the rotor; the rotor comprising a magnetic tile fixing portion and a bearing mounting portion, the magnetic tile fixing
  • the bearing portion is integrally formed with the bearing mounting portion, and the bearing mounting portion is disposed only on one side of a plane of rotation of the magnetic tile fixing portion, and geometric centers of the rotating shaft, the stator, the magnetic tile fixing portion, and the bearing mounting portion In a straight line.
  • the rotor further includes a connecting portion, one end of the connecting portion is fixed to the magnetic tile fixing portion, and the other end is fixed to the bearing mounting portion, so that the magnetic tile fixing portion and the bearing mounting portion are not In direct contact, the magnetic tile fixing portion, the bearing mounting portion, and the connecting portion are integrally formed.
  • the connecting portion is an L-shaped reinforcing rib, and one end of the L-shaped reinforcing rib is fixed to the magnetic tile fixing portion, and the other end is fixed to the bearing mounting portion.
  • a first reinforcing rib is disposed at a joint of the L-shaped reinforcing rib and the bearing mounting portion, and one of the two adjacent side faces of the first reinforcing rib is fixed to the bearing mounting portion, and the other side is Fixed to the L-shaped reinforcing rib; a second reinforcing rib is disposed at an intersection of two sides of the L-shaped reinforcing rib, and adjacent two sides of the second reinforcing rib are respectively fixed to the L-shaped reinforcing rib The two sides.
  • the magnetic tile fixing portion is provided with a plurality of blade mounting portions, and the plurality of blade mounting portions are radially evenly distributed around the magnetic tile fixing portion; the magnetic tile fixing portion, the bearing mounting portion and the fan
  • the leaf mounting portion is formed by integral molding.
  • the blade mounting portion is a cavity structure, and the cavity structure is provided with a plurality of mounting posts, and the mounting posts are provided with threads.
  • bearing mounting portion is provided with a stepped mounting cavity having an unequal inner diameter.
  • the utility model has the beneficial effects that the magnetic tile fixing portion and the bearing mounting portion are integrally formed by injection molding or metal die casting process, and the bearing mounting portion is only disposed on one side of the rotation plane of the magnetic tile fixing portion,
  • the coaxiality is precisely ensured by the molding die; when installing, the bearing is first installed in the bearing mounting portion, and then the rotating shaft fixed with the stator passes through the inner ring cavity of the magnetic tile fixing portion and then penetrates into the bearing mounting portion and
  • the fixing makes the geometric center of the rotating shaft, the stator, the magnetic tile fixing part and the bearing mounting part on the same straight line, and the installation is convenient.
  • the molding die and the adjustment process parameters are utilized, and the mature injection molding or metal die-casting equipment and process are used to ensure the magnetic
  • the coaxiality between the tile fixing portion and the bearing mounting portion and the respective symmetry can be achieved, the process steps are simple, the dimensional accuracy of the product is high, and the cost is reduced.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • Figure 2 is a cross-sectional view of an embodiment of the present invention in a vertical direction
  • Figure 3 is a bottom plan view of one embodiment of the present invention.
  • Figure 4 is a schematic view showing the internal structure of an embodiment of the rotor of the present invention.
  • Figure 5 is a schematic structural view of an embodiment of a stator of the present invention.
  • Figure 6 is a schematic view showing the structure of an embodiment of the positioning ring of the present invention.
  • Stator 2 stator body 21, stator teeth 22, windings 23, curved sheets 24;
  • a rotor 3 a magnetic tile fixing portion 31, an inner ring cavity 310, a positioning mounting groove 311, a bearing mounting portion 32, a connecting portion 33, a blade mounting portion 34, a mounting post 341;
  • a ceiling fan rotor for facilitating accurate mounting of a bearing includes a rotating shaft 1, a stator 2 and a rotor 3, and the stator 2 is housed in an inner ring cavity 310 of the rotor 3; 3 includes a magnetic tile fixing portion 31 and a bearing mounting portion 32 which are integrally formed with the bearing mounting portion 32, and the bearing mounting portion 32 is provided only at the rotation of the magnetic tile fixing portion 31 On one side of the plane, the geometric centers of the rotating shaft 1, the stator 2, the magnetic tile fixing portion 31, and the bearing mounting portion 32 are in a straight line.
  • the stator winding of the motor is made into a three-phase symmetrical star connection method, and the magnetized permanent magnet is fixed on the rotor of the motor.
  • the stator armature windings are continuously commutated to make the stator
  • the magnetic field continuously changes with the position of the rotor, so that the stator magnetic field and the permanent magnet magnetic field of the rotor always maintain a left and right spatial angle, and the torque is generated to push the rotor to rotate, the rotor rotates, and the electric energy is converted into mechanical energy, so as to ensure the smooth rotation of the rotor,
  • the shaft connects the stator and the rotor, the coaxiality between the stator and the rotor must be extremely high.
  • the magnetic tile fixing portion 31 is an annular structure, and the inner side wall of the annular structure is evenly distributed with a plurality of magnetic tiles 6, and a plurality of magnetic tiles 6 are disposed around the center of the magnetic tile fixing portion 31, and the magnetic tile 6
  • the annular structure between the magnetic watts 6 is provided with a positioning mounting groove 311.
  • the positioning mounting groove 311 is recessed from the inner side wall of the annular structure toward the outer side of the magnetic tile fixing portion 31.
  • the length is equal to the height of the annular structure, and the upper and lower ends of the positioning mounting groove 311 are respectively communicated with the upper and lower end faces of the annular structure, and the positioning mounting groove 311 of the above structure is integrated in the rotor 3.
  • the positioning ⁇ is matched with the position of the positioning mounting groove 311 on the molding die, and the magnetic tile 6 is placed between the adjacent two positioning ridges for convenient positioning, thereby improving assembly precision.
  • the magnetic tile fixing portion 31 and the bearing mounting portion 32 are integrally formed by injection molding or metal die casting process, and the bearing mounting portion 32 is disposed only on one side of the rotation plane of the magnetic tile fixing portion 31, then The coaxiality of the person is precisely ensured by the molding die; when mounting, the bearing 8 is first mounted in the bearing mounting portion 32, and then the rotating shaft 1 to which the stator 2 is fixed is passed through the inner ring cavity of the magnetic tile fixing portion 31. After 310, the bearing mounting portion 32 is inserted and fixed; the coaxiality between the rotating shaft 1 and the stator 2 is adjusted before assembly with the rotor 3, and the installation is convenient, and the mature molding is utilized by molding the mold and adjusting the process parameters. Or the metal die-casting equipment and the process ensure the coaxiality and the respective symmetry between the magnetic tile fixing portion 31 and the bearing mounting portion 32, the process steps are simple, the dimensional accuracy of the product is high, and the cost is reduced.
  • the rotor 3 further includes a connecting portion 33, one end of the connecting portion 33 is fixed to the magnetic tile fixing portion 31, and the other end is fixed to the bearing mounting portion 32, so that the magnetic tile fixing portion 31 and the bearing
  • the mounting portion 32 is not in direct contact, and the magnetic tile fixing portion 31, the bearing mounting portion 32, and the connecting portion 33 are integrally formed.
  • the stator 2 is fixed on the rotating shaft 1. After being energized, the rotor 3 is rotated around the rotating shaft 1 through the bearing in the bearing mounting portion 32, and the connecting portion 33 realizes the connection that the magnetic tile fixing portion 31 and the bearing mounting portion 32 are not in direct contact, thereby ensuring the rotor. Smooth rotation.
  • the connecting portion 33 is an L-shaped reinforcing rib, and one end of the L-shaped reinforcing rib is fixed to the magnetic tile fixing portion 31, and the other end is fixed to the bearing mounting portion 32.
  • L-shaped rib one side is parallel with the rotating shaft 1 when fixed, and the other side is perpendicular to the rotating shaft 1; the end of the side perpendicular to the rotating shaft 1 is fixed to the magnetic tile fixing portion 31, and the end of the side parallel to the rotating shaft 1 is fixed to the bearing mounting On the portion 32, a plurality of the L-shaped reinforcing ribs are uniformly distributed around the periphery of the magnetic tile fixing portion 31 to ensure a stable connection between the magnetic shoe fixing portion 31 and the bearing mounting portion 32.
  • a first reinforcing rib 4 is disposed at a joint of the L-shaped reinforcing rib and the bearing mounting portion 32, and one of the adjacent two side faces of the first reinforcing rib 4 is fixed at
  • the bearing mounting portion 32 is fixed to the L-shaped reinforcing rib;
  • the second reinforcing rib 5 is disposed at the intersection of the two sides of the L-shaped reinforcing rib, and the second reinforcing rib 5 is adjacent to the second reinforcing rib 5
  • the two sides are respectively fixed to the two sides of the L-shaped rib.
  • connection transition position of two different shape members is a weak position, and in the technical solution, only A bearing mounting portion 32 is disposed on one side of the rotor 3, and the magnetic tile fixing portion 31 and the bearing mounting portion 32 are connected by a plurality of L-shaped reinforcing ribs, so as to further ensure the support strength required when the rotor 3 rotates, the first reinforcement is set.
  • the rib 4 is configured to strengthen the connection strength between the L-shaped rib and the bearing mounting portion 32
  • the second rib 5 is provided to strengthen the joint strength between the two sides of the L-shaped rib, thereby ensuring that the rotor 3 is rotated at a high speed.
  • the structure of each part of the rotor 3 can maintain sufficient strength.
  • the magnetic blade fixing portion 31 is provided with a plurality of blade mounting portions 34, and the plurality of blade mounting portions 34 are radially evenly distributed around the magnetic tile fixing portion 31; the magnetic tile fixing portion 31 and the bearing mounting portion
  • the 32 and the blade mounting portion 34 are formed by integral molding.
  • a number of corresponding blades are sequentially fixed and fixed to a plurality of blade mounting portions 34.
  • the blades are directly driven to rotate, and the fan blades are not required to be reinstalled, thereby simplifying the installation process; compared with installing the blades through the casing, By driving the casing to rotate and driving the blade to rotate, the blade in the technical solution is directly driven by the rotor 3, so that the energy of the driving device does not need to be spent on the accessory such as the casing, thereby reducing the energy consumption output.
  • the magnetic tile fixing portion 31, the bearing mounting portion 32 and the blade mounting portion 34 are integrally formed, and the structure of three, four and five blades can be set according to customer requirements (application of different molds) The installation accuracy is ensured, the rotor 3 is smoothly rotated, the machining process is simplified, and the cost is greatly saved.
  • the blade is directly mounted to the rotor 3 through the blade mounting portion 34, and is directly rotated by the rotor, and the structure is simple and compact; in order to expand the function of the ceiling fan, the ceiling fan can be disposed through the casing that does not rotate.
  • the outer casing install a beautiful lamp body structure, camera device, aroma diffuser, etc., to meet the basic fan use, get lighting, camera, fresh air and other functions, such a multifunctional ceiling fan installed in the room It improves the style and taste of the whole room, and is more suitable for the market with increasingly diversified needs.
  • the blade mounting portion 34 is a cavity structure, and a plurality of mounting posts 341 are disposed in the cavity structure.
  • the mounting post 341 is provided with a thread.
  • the blade mounting portion 34 has a cavity structure, which reduces the weight of the rotor 3 as a whole and reduces the energy consumption output.
  • the mounting post 341 is provided, and the fastening screws are sequentially passed through the blade from the bottom to the top or from the top to the bottom.
  • the connecting manner of the internal threads of the mounting post 341 fixes the blade to the blade mounting portion 34, and the fixing is stable, so as to prevent the fastening screw from being loosened from the threaded hole when the blade rotates at a high speed, and the blade is attached from the blade. 34 was taken out.
  • One or more bearings are superposed on the bearing mounting portion 32.
  • the bearing mounting portion 32 is provided with a stepped mounting cavity having an unequal inner diameter.
  • Bearings with different outer diameters are installed in stepped mounting cavities with unequal inner diameters, and the annular side walls in the cavity of the mounting cavity with different inner diameters provide support for bearings with smaller outer diameters, and also avoid The overall sliding of the bearing in the axial direction improves the assembly precision and ensures the smooth rotation of the rotor 3.
  • the stator 2 includes a stator body 21, stator teeth 22, windings 23 and a plurality of curved pieces 24, and the rotating shaft 1 is fixed through the stator body 21, and the stator is fixed.
  • the teeth 22 are radially evenly distributed at the edge of the stator body 21, adjacent to the stator teeth 22 to form a wire slot, the winding 23 is wound around the stator teeth 22;
  • the curved shape of the curved piece 24 is convex outward, and is fixed inside the root portion of the stator tooth 22 and perpendicular to the end surface of the stator body 21; a plurality of the curved pieces 24 are evenly distributed in the stator On the end face of the body 21, a circular shape surrounding the rotating shaft 1 is formed.
  • the free end of the enameled wire needs to be pulled to be spaced apart from the two stator teeth.
  • the rear stator teeth continue to be wound; and the arc piece 24 is arranged to function During the process of pulling the free end of the enameled wire to the two stator teeth, the enameled wire is attached to the outer curved surface of the curved piece 24, and the outer arc of the curved piece 24 is passed compared to pulling the enameled wire straight to the corresponding position.
  • the surface walking conforms to the arc shape provided between the stator teeth 22, and the enameled wire is not easily broken, which improves the efficiency of the wire.
  • the outer side wall of the rotating shaft 1 is provided with an inner groove 101 formed by a radially inwardly recessed outer wall of the rotating shaft 1; After the rotating shaft 1 is sequentially inserted into the bearing mounting portion 32 and the stator 2, the positioning ring 7 is fitted in the inner groove 101, thereby fixing the stator 2 and/or the bearing mounting portion 32 to the rotating shaft 1.
  • the positioning ring 7 is an elastic ring provided with an opening, and the two ends of the positioning ring at the opening are respectively extended radially outward to form a positioning block 71; the positioning ring 7 is clamped.
  • the outer edge of the positioning ring 7 is larger than the outer diameter of the rotating shaft 1.
  • the inner groove 101 is set according to the specific mounting position of the rotating shaft 1 and the stator 2, the rotating shaft 1 and the bearing mounting seat 32: after the rotating shaft 1 is sequentially inserted into the bearing mounting portion 32 and the stator 2, an inner groove 101 is just at the place Below the end surface of the stator 2, an inner groove 101 is just below the end surface of the bearing mounting portion 32, and the two positioning rings 7 are respectively mounted on the inner grooves 101, and the upper end surface of the positioning ring 7 is
  • the positioning block 71 is in contact with the lower end surface of the stator 2, and the upper end surface of the other positioning ring 7 and the positioning block 71 are in contact with the lower end surface of the bearing mount 32, thereby realizing the bearing mounting portion 32 (rotor 3) and the stator 2, respectively.
  • the positioning between the rotating shafts 1 makes the bearing mounting portion 32 (rotor 3) and the stator 2 not move downward, and the loading is convenient and the positioning is accurate.
  • the inner groove 101 is disposed under the bearing mounting portion 32 and the stator 2 at the same time. After the positioning ring 7 is clamped, the two positioning rings 7 cooperate with the bearing mounting portion 32 and the stator 2 to define the rotating shaft 1 at The back and forth movement in the axial direction ensures stable and accurate assembly of the stator 2 and the rotor 3, and the performance is more stable when the ceiling fan is used.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

一种便于轴承精准安装的吊扇转子，包括转轴(1)、定子(2)和转子(3)，定子(2)容纳在转子(3)的内环腔体(310)中，转子(3)包括磁瓦固定部(31)和轴承安装部(32)，磁瓦固定部(31)与轴承安装部(32)为一体化制成，且轴承安装部(32)仅设置在磁瓦固定部(31)的旋转平面的一侧，转轴(1)、定子(2)、磁瓦固定部(31)和轴承安装部(32)的几何中心在一条直线上。该吊扇转子保证了磁瓦固定部(31)和轴承安装部(32)之间的同轴度。

Description

一种便于轴承精准安装的吊扇转子 技术领域
本实用新型涉及吊扇设备领域，特别是一种便于轴承精准安装的吊扇转子。
背景技术
市场上的大多数直流吊扇的马达外壳包括上部外壳和下部外壳，且上部外壳和下部外壳的中心位置分别安装有轴承，马达的定子和转子设置在上部外壳和下部外壳之间，吊扇的扇叶安装在上部外壳。为了保证扇叶工作的稳定性，马达各配件的生产和安装时的精度要求要很高：需要极其严格地保证上部外壳和下部外壳的同轴度，以保证两轴承分别安装到上部外壳和下部外壳，吊扇的转轴依次穿过上部外壳的轴承、定子、下部外壳的轴承后，依然能处于垂直状态，扇叶平稳转动，避免轴承安装偏差造成的扇叶振动和噪音等问题。看似简单的结构，而在现实生产中实则很难保证上部外壳和下部外壳的同轴度，其中任意一个外壳上出现凹坑或某个位置的斜度与邻近位置的斜度等问题，都会使得外壳的几何中心偏离正常位置，继而导致转轴与上部外壳和下部外壳三者无法安装。上述现有结构以及极高的精度要求，无形中增加了吊扇生产的工艺步骤，降低了其生产效率。
另外，现有技术中的扇叶安装在吊扇电机外壳，电机需要带动上部外壳和下部外壳转动后，才能通过上部外壳或下部外壳带动扇叶转动，能耗大，且转动的吊扇电机外壳无法满足为电扇增加的，诸如增加一些灯饰，的功能扩展的要求，则产品无法适应越来越多元化的市场要求；而即便能满足，吊扇的结构会变得相当复杂，无法大力推广。
实用新型内容
针对上述缺陷，本实用新型的目的在于提出一种便于轴承精准安装的吊扇 转子，轴承安装座一体化设计在转子的一侧，转轴安装时快速方便，且各配件的同轴度高。
为达此目的，本实用新型采用以下技术方案：
一种便于轴承精准安装的吊扇转子，包括转轴、定子和转子，所述定子容纳在所述转子的内环腔体中；所述转子包括磁瓦固定部和轴承安装部，所述磁瓦固定部与轴承安装部为一体化制成，且所述轴承安装部仅设置在所述磁瓦固定部的旋转平面的一侧，所述转轴、定子、磁瓦固定部和轴承安装部的几何中心在一条直线上。
进一步的，所述转子还包括连接部，所述连接部的一端固定在所述磁瓦固定部，另一端固定在所述轴承安装部，使得所述磁瓦固定部与所述轴承安装部不直接接触，所述磁瓦固定部、轴承安装部和连接部为一体化成型制成。
进一步的，所述连接部为L状加强筋，所述L状加强筋的一端固定在所述磁瓦固定部，另一端固定在所述轴承安装部。
进一步的，所述L状加强筋与轴承安装部的连接处设有第一加强筋，所述第一加强筋的相邻两个侧面中，一个侧面固定在所述轴承安装部，另一个侧面固定在所述L状加强筋；所述L状加强筋中两条边的交汇处设有第二加强筋，所述第二加强筋的相邻两个侧面分别固定在所述L状加强筋的两条边。
进一步的，所述磁瓦固定部设有若干扇叶安装部，若干所述扇叶安装部呈放射状均匀分布在所述磁瓦固定部的四周；所述磁瓦固定部、轴承安装部和扇叶安装部为一体化成型制成。
进一步的，所述扇叶安装部为空腔结构，所述空腔结构内设有若干安装柱，所述安装柱设有螺纹。
进一步的，所述轴承安装部内叠加设置有一个以上轴承。
进一步的，所述轴承安装部设有内径不相等的阶梯状安装腔体。
本实用新型的有益效果：所述磁瓦固定部与轴承安装部采用注塑或金属压铸工艺成型一体化制成，且轴承安装部仅设置在磁瓦固定部旋转平面的一侧，则两者的同轴度通过成型模具精准保证；安装时，先在轴承安装部内安装好轴承，继而将固定了定子的转轴穿过所述磁瓦固定部的内环腔体后穿入所述轴承安装部并固定，使得转轴、定子、磁瓦固定部和轴承安装部的几何中心处于同一直线上即可，安装方便，通过成型模具和调节工艺参数，利用成熟的注塑或金属压铸设备及工艺，保证了磁瓦固定部和轴承安装部之间的同轴度和各自的对称性即可，工艺步骤简单，产品的尺寸精度高，降低了成本。
附图说明
图1是本实用新型的一个实施例的结构示意图；
图2是本实用新型的一个实施例在竖直方向上的剖视图；
图3是本实用新型的一个实施例的仰视图；
图4是本实用新型中转子的一个实施例的内部结构示意图；
图5是本实用新型中定子的一个实施例的结构示意图；
图6是本实用新型中定位环的一个实施例的结构示意图。
其中：转轴1，内凹槽101；
定子2，定子本体21，定子齿22，绕组23，弧形片24；
转子3；磁瓦固定部31，内环腔体310，定位安装槽311；轴承安装部32，连接部33；扇叶安装部34，安装柱341；
第一加强筋4，第二加强筋5，磁瓦6；定位环7，定位块71；轴承8。
具体实施方式
下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。
如图1及图2所示，一种便于轴承精准安装的吊扇转子，包括转轴1、定子2和转子3，所述定子2容纳在所述转子3的内环腔体310中；所述转子3包括磁瓦固定部31和轴承安装部32，所述磁瓦固定部31与轴承安装部32为一体化制成，且所述轴承安装部32仅设置在所述磁瓦固定部31的旋转平面的一侧，所述转轴1、定子2、磁瓦固定部31和轴承安装部32的几何中心在一条直线上。
电机中，电机的定子绕组做成三相对称星形接法，电机的转子上固定了已充磁的永磁体，在驱动器的作用下，定子电枢各相绕组不断地换相通电，使定子磁场随着转子的位置在不断地变化，使定子磁场与转子永磁磁场始终保持左右的空间角，产生转矩推动转子旋转，转子转动，将电能转化为机械能，则为了保证转子的平稳转动，转轴将定子和转子连接时，定子和转子之间的同轴度必须极高。
本实施例中，所述磁瓦固定部31为环状结构，环状结构的内侧壁均布有若干磁瓦6，若干磁瓦6环绕所述磁瓦固定部31的中心设置，磁瓦6与磁瓦6之间的环状结构设有定位安装槽311，如图4所示，所述定位安装槽311由所述环状结构的内侧壁向所述磁瓦固定部31的外侧凹陷形成，长度与所述环状结构的高度相当，且所述定位安装槽311的上下两端分别与所述环状结构的上下两个端面连通，上述结构的定位安装槽311在所述转子3一体成型时形成，在成型模具上对应于定位安装槽311的位置配合的是定位楞，磁瓦6放置在相邻两定位楞之间，方便定位，从而提高了装配的精度。
本技术方案中，所述磁瓦固定部31与轴承安装部32采用注塑或金属压铸工艺成型一体化制成，且轴承安装部32仅设置在磁瓦固定部31旋转平面的一侧，则两者的同轴度通过成型模具精准保证；安装时，先在轴承安装部32内安装好轴承8，继而将固定了定子2的转轴1穿过所述磁瓦固定部31的内环腔体 310后穿入所述轴承安装部32并固定；转轴1和定子2两者之间的同轴度在与转子3装配前调整完成，安装方便，通过成型模具和调节工艺参数，利用成熟的注塑或金属压铸设备及工艺，保证了磁瓦固定部31和轴承安装部32之间的同轴度和各自的对称性即可，工艺步骤简单，产品的尺寸精度高，降低了成本。
所述转子3还包括连接部33，所述连接部33的一端固定在所述磁瓦固定部31，另一端固定在所述轴承安装部32，使得所述磁瓦固定部31与所述轴承安装部32不直接接触，所述磁瓦固定部31、轴承安装部32和连接部33为一体化成型制成。
定子2固定在转轴1上，通电后使得转子3通过轴承安装部32内的轴承绕着转轴1旋转，连接部33实现磁瓦固定部31与轴承安装部32不直接接触的连接，保证转子的平稳旋转。
所述连接部33为L状加强筋，所述L状加强筋的一端固定在所述磁瓦固定部31，另一端固定在所述轴承安装部32。
L状加强筋，固定时一条边与转轴1平行，另一条边与转轴1垂直；与转轴1垂直的边的末端固定在磁瓦固定部31，与转轴1平行的边的末端固定在轴承安装部32上；若干所述L状加强筋均匀分布固定在所述磁瓦固定部31的四周，保证磁瓦固定部31和轴承安装部32之间的稳定连接。
如图1及图4所示，所述L状加强筋与轴承安装部32的连接处设有第一加强筋4，所述第一加强筋4的相邻两个侧面中，一个侧面固定在所述轴承安装部32，另一个侧面固定在所述L状加强筋；所述L状加强筋中两条边的交汇处设有第二加强筋5，所述第二加强筋5的相邻两个侧面分别固定在所述L状加强筋的两条边。
两个不同形状构件的连接过渡位置为强度较弱的位置，本技术方案中，仅 在转子3的一侧设置轴承安装部32，再通过若干L状加强筋连接固定磁瓦固定部31和轴承安装部32，为进一步保证转子3转动时所需的支撑强度，故而设置第一加强筋4以加强L状加强筋与所述轴承安装部32之间的连接强度，设置第二加强筋5以加强L状加强筋中两条边的连接强度，从而保证转子3在高速转动时，转子3的各部分结构能保持足够的强度。
所述磁瓦固定部31设有若干扇叶安装部34，若干所述扇叶安装部34呈放射状均匀分布在所述磁瓦固定部31的四周；所述磁瓦固定部31、轴承安装部32和扇叶安装部34为一体化成型制成。
将数量相当的扇叶依次安装固定在若干扇叶安装部34，转子3转动时，直接带动扇叶转动，而无需重新设置其他外壳安装扇叶，简化安装工序；相比通过外壳安装扇叶，通过带动外壳转动从而带动扇叶转动，本技术方案中的扇叶直接被转子3带动，则驱动装置的能量无需再耗费在外壳等附属配件上，降低了能耗输出。所述磁瓦固定部31、轴承安装部32和扇叶安装部34为一体化成型制成，可根据客户要求设置3片、4片和5片扇叶的结构(应用不同的模具配合生产)，保证安装使用精度，转子3平稳转动的同时简化了加工工序，大大地节约了成本。
另外，本技术方案中，扇叶通过扇叶安装部34直接安装到转子3，而直接被转子带着旋转，结构简单，紧凑；则为了扩展吊扇的功能，可在吊扇通过设置不旋转的外壳，在外壳上按照场合需要，安装漂亮的灯体结构、摄像装置、香薰发散装置等，满足基本扇风使用的同时，获得照明、摄像、清新空气等功能，这样一款多功能吊扇安装在房间里，提高了整个房间的格调和品味，也更能适应需求不断多样化的市场，适宜大力推广。
所述扇叶安装部34为空腔结构，所述空腔结构内设有若干安装柱341，所 述安装柱341设有螺纹。
扇叶安装部34为空腔结构，减轻了转子3整体的重量，降低了能耗输出；而设置安装柱341，采用从下往上或从上往下将紧固螺丝依次穿过扇叶、安装柱341的内螺纹的连接方式将扇叶安装固定在扇叶安装部34上，固定稳定，避免扇叶高速旋转时，紧固螺丝从螺纹孔内松出，而扇叶从扇叶安装部34上被甩出。
所述轴承安装部32内叠加设置有一个以上轴承。
增加所述轴承安装部32在转轴1轴向上的长度，使得所述轴承安装部32内能容纳一个以上轴承，通过两个或更多同轴安装的轴承，保证转轴1与转子3之间的稳定安装，以满足转子3高速运转所需的强度。
所述轴承安装部32设有内径不相等的阶梯状安装腔体。
不同外径的轴承安装在内径不相等的阶梯状安装腔体内，而安装腔体内，不同内径之间过渡时的环状侧壁，给外径较小的轴承提供了支承力，也避免了各轴承在轴向上的整体滑动，提高装配精度，保证转子3的平稳转动。
如图1及图5所示，所述定子2包括定子本体21、定子齿22、绕组23和若干弧形片24，所述转轴1穿过所述定子本体21后两者固定，所述定子齿22呈放射状均匀分布在所述定子本体21的边缘，相邻所述定子齿22之间形成线槽，所述绕组23缠绕设置在所述定子齿22；
所述弧形片24的弧形向外侧凸出，且固定在所述定子齿22的齿根部内侧，并垂直于所述定子本体21的端面设置；若干所述弧形片24均匀分布在定子本体21的端面上，组成环绕所述转轴1的圆形。
根据定子和转子相互作用的原理，需要在各定子齿22分别进行绕组23，且同一条漆包线，在一个定子齿22上完成绕组后，需要将漆包线的自由端拉到与之间隔两个定子齿后的定子齿上继续缠绕；而弧形片24的设置，作用在于，将 漆包线的自由端拉到与之间隔两个定子齿的过程中，漆包线贴附这弧形片24的外侧弧面行走，相比于将漆包线直线拉到对应位置，通过弧形片24的外侧弧面行走，顺应了各定子齿22之间设置的弧形，漆包线不容易被扯断，提高了饶线效率。
如图1、图3及图4所示，所述转轴1的外侧壁设有内凹槽101，所述内凹槽101由所述转轴1的外侧壁沿径向向内凹陷形成；所述转轴1依次插入所述轴承安装部32和定子2后，将定位环7卡装在所述内凹槽101内，从而将所述定子2和/或轴承安装部32固定在所述转轴1。
如图6所示，所述定位环7为设有开放口的弹性环，且开放口处的定位环两端分别沿着其径向向外侧延伸，形成定位块71；将定位环7卡装在所述内凹槽101内时，定位环7的外侧边缘大于所述转轴1的外径。内凹槽101根据转轴1和定子2、转轴1与轴承安装座32的具体安装位置设定：所述转轴1依次插入所述轴承安装部32和定子2后，一内凹槽101刚好在所述定子2的端面下方，一内凹槽101刚好在所述轴承安装部32的端面下方，将两定位环7分别卡装在两所述内凹槽101后，一定位环7的上端面、定位块71都与定子2的下端面接触，另一定位环7的上端面，定位块71都与轴承安装座32的下端面接触，从而实现轴承安装部32(转子3)、定子2分别与转轴1之间的定位，使得轴承安装部32(转子3)和定子2不会向下运动，装卡方便，定位准确。优选的，同时在轴承安装部32和定子2的下方设置内凹槽101，卡装定位环7后，则两个定位环7和轴承安装部32、定子2的共同作用，限定了转轴1在轴向上的来回运动，保证了定子2和转子3的稳定准确装配，吊扇使用时，性能更稳定。
以上结合具体实施例描述了本实用新型的技术原理。这些描述只是为了解释本实用新型的原理，而不能以任何方式解释为对本实用新型保护范围的限制。 基于此处的解释，本领域的技术人员不需要付出创造性的劳动即可联想到本实用新型的其它具体实施方式，这些方式都将落入本实用新型的保护范围之内。

Claims (8)

  1. 一种便于轴承精准安装的吊扇转子，包括转轴、定子和转子，所述定子容纳在所述转子的内环腔体中，其特征在于：所述转子包括磁瓦固定部和轴承安装部，所述磁瓦固定部与轴承安装部为一体化制成，且所述轴承安装部仅设置在所述磁瓦固定部的旋转平面的一侧，所述转轴、定子、磁瓦固定部和轴承安装部的几何中心在一条直线上。
  2. 根据权利要求1所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述转子还包括连接部，所述连接部的一端固定在所述磁瓦固定部，另一端固定在所述轴承安装部，使得所述磁瓦固定部与所述轴承安装部不直接接触，所述磁瓦固定部、轴承安装部和连接部为一体化成型制成。
  3. 根据权利要求2所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述连接部为L状加强筋，所述L状加强筋的一端固定在所述磁瓦固定部，另一端固定在所述轴承安装部。
  4. 根据权利要求3所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述L状加强筋与轴承安装部的连接处设有第一加强筋，所述第一加强筋的相邻两个侧面中，一个侧面固定在所述轴承安装部，另一个侧面固定在所述L状加强筋；所述L状加强筋中两条边的交汇处设有第二加强筋，所述第二加强筋的相邻两个侧面分别固定在所述L状加强筋的两条边。
  5. 根据权利要求1所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述磁瓦固定部设有若干扇叶安装部，若干所述扇叶安装部呈放射状均匀分布在所述磁瓦固定部的四周；所述磁瓦固定部、轴承安装部和扇叶安装部为一体化成型制成。
  6. 根据权利要求5所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述扇叶安装部为空腔结构，所述空腔结构内设有若干安装柱，所述安装柱设 有螺纹。
  7. 根据权利要求1所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述轴承安装部内叠加设置有一个以上轴承。
  8. 根据权利要求7所述的一种便于轴承精准安装的吊扇转子，其特征在于：所述轴承安装部设有内径不相等的阶梯状安装腔体。
PCT/CN2016/100398 2015-09-29 2016-09-27 一种便于轴承精准安装的吊扇转子 WO2017054709A1 (zh)

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