阅读说明：本技术 一种电机及吊扇 (Motor and ceiling fan ) 是由 刘行 于 2019-11-25 设计创作，主要内容包括：本发明公开了一种电机及吊扇,电机包括：轴、电机壳体、设置在电机壳体内的定子组件和转子组件；所述电机壳体包括上壳体和下壳体,在所述的上壳体和下壳体中至少其中之一可转动,为旋转型壳体,所述旋转型壳体为铸铝材料制成；所述转子组件包括转子铁芯和铸铝导体；所述转子铁芯由卷绕式硅钢片组成。所述转子铁芯上有辐射状的槽或孔,所述铸铝导体以辐射状置于所述转子铁芯上的槽或孔内；所述转子铁芯和铸铝导体固定在所述旋转型壳体上,所述铸铝导体与所述旋转型壳体一体化铸造成型；所述定子组件包括定子铁芯和定子绕组,所述定子铁芯由卷绕式硅钢片组成,所述定子绕组绕在所述定子铁芯上。本发明中所述旋转壳体与所述转子组件中的铸铝导体为一体化铸造成型,导体中电流发热能直接传递到旋转壳体上,该旋转壳体裸露在空气中,散热效果较好,降低了电机温升,提高了电机的工作效率、可靠性和稳定性；另外,所述旋转壳体与所述转子组件中的铸铝导体集成为一体化,不但节省成本和铁芯的安装,而且无需额外的紧固件就能将转子铁芯很好的固定。(The invention discloses a motor and a ceiling fan, wherein the motor comprises: the motor comprises a shaft, a motor shell, a stator component and a rotor component, wherein the stator component and the rotor component are arranged in the motor shell; the motor shell comprises an upper shell and a lower shell, at least one of the upper shell and the lower shell can rotate and is a rotary shell, and the rotary shell is made of cast aluminum material; the rotor assembly comprises a rotor core and a cast aluminum conductor; the rotor iron core is composed of wound silicon steel sheets. The rotor core is provided with radial slots or holes, and the cast aluminum conductors are arranged in the slots or holes of the rotor core in a radial mode; the rotor iron core and the cast aluminum conductor are fixed on the rotary type shell, and the cast aluminum conductor and the rotary type shell are integrally cast and molded; the stator assembly comprises a stator core and a stator winding, the stator core is composed of wound silicon steel sheets, and the stator winding is wound on the stator core. According to the invention, the rotating shell and the cast aluminum conductor in the rotor assembly are integrally cast and molded, the current heating in the conductor can be directly transmitted to the rotating shell, and the rotating shell is exposed in the air, so that the heat dissipation effect is good, the temperature rise of the motor is reduced, and the working efficiency, reliability and stability of the motor are improved; in addition, the rotating shell and the cast aluminum conductor in the rotor assembly are integrated, so that the cost and the installation of the iron core are saved, and the rotor iron core can be well fixed without additional fasteners.)

1. An electric machine, comprising: a shaft, a motor housing, a stator assembly and a rotor assembly disposed within the motor housing;

the motor shell comprises an upper shell and a lower shell, at least one of the upper shell and the lower shell can rotate and is a rotary shell, and the rotary shell is made of cast aluminum material;

the rotor assembly comprises a rotor core and a cast aluminum conductor; the rotor iron core is formed by winding silicon steel sheets; the rotor iron core and the cast aluminum conductor are fixed on the rotary type shell; the cast aluminum conductor and the rotary type shell are cast into a whole;

the stator assembly comprises a stator core and a stator winding, the stator core is formed by winding a silicon steel sheet, and the stator winding is fixed on the stator core.

2. The motor of claim 1 wherein said rotor core has radial slots or holes and said cast aluminum conductors are disposed in said slots or holes of said rotor core.

3. The motor of claim 1, wherein one of the upper and lower housings is stationary and is a stationary type housing.

4. The motor according to any one of claims 1 to 3, wherein a slot for fixing the core is provided on the stator core.

5. The electric machine of claim 4, wherein a snap bar is provided in said snap groove, said snap bar being integral with said stationary housing and securing said stator core to said stationary housing.

6. The electric machine of claim 5, wherein the outer surface of the stationary housing is provided with heat dissipating fins or ribs.

7. The motor of claim 1, wherein said upper housing and said lower housing are both rotary-type housings.

8. The electric motor of claim 7 wherein said rotor assemblies are provided in two sets, one set being secured to said upper housing and the other set being secured to said lower housing.

9. The motor of claim 1 wherein said shaft has a hollow structure therein.

10. An electric machine as claimed in claim 9, characterized in that a lighting device is mounted on said housing of the stationary type, the power supply cable of said lighting device passing through the hollow structure of said shaft.

11. A ceiling fan comprising fan blades and a motor as claimed in any one of claims 1 to 10; the fan blades are mounted on the motor.

Technical Field

The invention belongs to the technical field of ventilation and refrigeration, relates to a motor and a ceiling fan, and particularly relates to a motor and a ceiling fan with low cost and high heat dissipation efficiency.

Background

The motor casing (including upper casing and lower casing) of the existing ceiling fan is all rotary, and the stator core and stator winding as the core component of the motor are the main heating heat source of the motor; because stator core and stator winding are enclosed inside the shell of motor, make its production of heat mainly through radiation heat dissipation, its heat is hardly distributed away to lead to the motor temperature rise higher, the volume increases, efficiency reduction.

The stator core and the rotor core of the existing motor are mainly formed by stamping silicon steel sheets into corresponding shapes and then stacking the silicon steel sheets. The iron core material of this kind of technology is waste material more, and needs the stack process, and the cost is higher.

The structure of the motor applied to the ceiling fan is better as per practical requirements, but the magnetic circuit structure of the motor applied to the ceiling fan at present is mainly a radial magnetic circuit structure, and the end part of a stator winding (or called as a coil) occupies a part of axial space no matter the structure is an inner rotor structure or an outer rotor structure, so that the motor is difficult to be made to be very flat.

Most of the existing motors for ceiling fans are asynchronous motors, and cast aluminum conductors are needed on rotors in the motors, namely the 'squirrel cage' commonly called. However, since the motor rotor is disposed inside the motor and is rotated, even though the motor housing is made of cast aluminum, the cast aluminum squirrel cage rotor is difficult to be integrally cast with the housing, which is relatively complicated in process and high in cost.

At present, the large ceiling fan used in occasions such as factory buildings, stations and the like has long and large fan blades, most of the fan blades are arranged below the roof lighting equipment, and the large fan blades can cause the light of the lighting equipment to flicker when rotating, so that people can feel uncomfortable such as vertigo.

The invention discloses an asynchronous motor scheme of an axial magnetic field, which can improve the problems and is particularly suitable for the application occasions of ceiling fans.

Disclosure of Invention

Aiming at the defects in the problems, the invention provides a motor and a ceiling fan.

The invention discloses a motor which comprises a shaft, a motor shell, a stator component and a rotor component, wherein the stator component and the rotor component are arranged in the motor shell.

The motor housing comprises an upper housing and a lower housing, and the upper housing and the lower housing are exposed in the air. At least one of the upper shell and the lower shell can rotate and is a rotary shell made of cast aluminum material.

The rotor assembly comprises a rotor core and a cast aluminum conductor; the rotor iron core is formed by winding silicon steel sheets; the rotor iron core and the cast aluminum conductor are fixed on the rotary type shell; the cast aluminum conductor and the rotary type shell are cast and molded together and integrated into a whole.

The stator assembly comprises a stator core and a stator winding, the stator core is composed of wound silicon steel sheets, and the stator winding is fixed on the stator core. Preferably, the winding is composed of a coil and can be made of round enameled wire or flat copper wire.

As a further improvement of the invention, the stator core and the rotor core are arranged along the axial direction, and are close to but not in contact with each other, and a small air gap is arranged in the middle.

As a further improvement of the present invention, the rotor core has radial slots or holes, and the cast aluminum conductors are disposed in the slots or holes of the rotor core in a radial manner.

As another improvement of the present invention, the rotor core is a solid structure, the cast aluminum conductor is a whole aluminum plate, and the cast aluminum conductor is disposed between the rotor core and the stator core and fixes the rotor core.

As a further improvement of the invention, one of the upper shell and the lower shell is fixed and is a static shell. For example, the lower casing is a rotary casing, and the upper casing is a stationary casing; or, the upper shell is a rotary shell, and the lower shell is a static shell.

The stator core is secured to the swivel-type housing, and fasteners (e.g., bolts, etc.) are typically used to secure the stator core to the swivel-type housing. As a further improvement of the present invention, a slot for fixing the iron core is provided on the stator iron core, and further, a clamping bar is provided in the slot, the clamping bar and the stationary casing form an integral body, and the stator iron core is fixed on the stationary casing. For example, the lower housing is a stationary housing and made of cast aluminum material, a clamping groove is formed on a surface of the stator core contacting the housing, a cast aluminum clamping bar is arranged in the clamping groove, the cast aluminum clamping bar and the lower housing are integrally cast and formed, and the two are integrated together, and the stator core is fixed on the lower housing through the clamping bar. Structural integration between the snap strip and the rotary-type housing may be achieved in a variety of ways including, but not limited to, a casting process, a die casting process, an injection molding process, and the like.

As a further improvement of the present invention, the outer surface of the stationary casing is provided with heat dissipating fins or ribs. The radiating fins or radiating ribs can be used as independent structural members to be installed on the static shell, and can also be integrally formed with the static shell and integrated together, so that the installation procedure is omitted.

As a further improvement of the present invention, the upper casing and the lower casing are both rotary-type casings. In a further improvement, the rotor assembly has two sets, wherein one set is fixed on the upper shell, and the other set is fixed on the lower shell. For example, the motor is a double-rotor single-stator disc asynchronous motor structure, the upper shell and the lower shell of the motor are both made of cast aluminum materials, two rotor cores with radial groove shapes are respectively cast with the upper shell and the lower shell, and the stator core of the motor can be fixed on a shaft which is fixed.

As a further improvement of the invention, the shaft is provided with a hollow structure, and a power wire of the motor can penetrate through the hollow structure. In a further improvement, a lighting device is mounted on the static shell, and a power supply cable of the lighting device penetrates through the hollow structure of the shaft.

The invention discloses a ceiling fan, which comprises large fan blades and a ceiling fan motor; the large fan blade is installed on the motor.

Compared with the prior art, the invention has the beneficial effects that:

the stator core or the rotor core can be formed by winding silicon steel sheets, so that less waste materials are produced, and the cost is lower. In addition, the motor belongs to an axial magnetic circuit structure, the end part of the stator winding (or called as a coil) does not occupy the axial space, and the motor can easily realize a flat structure.

The rotating shell and the cast aluminum conductor ('squirrel cage') in the rotor assembly are integrally cast and molded, the current heating in the cast aluminum conductor can be directly transmitted to the rotating shell, and the rotating shell is exposed in the air, so that the heat dissipation effect is good, the temperature rise of the motor can be reduced, and the working efficiency, reliability and stability of the motor can be improved; in addition, the rotating shell and the cast aluminum conductor in the rotor assembly are cast into a whole, so that the cost and the iron core installation time are saved, and the rotor iron core can be well fixed without additional fasteners.

A clamping groove is formed in the stator core, a cast aluminum clamping strip which is integrally cast and formed with the lower shell is arranged in the clamping groove, and the stator core is fixed on the lower shell through the cast aluminum clamping strip. Therefore, the working time is saved, materials such as fasteners and the like are saved, and the structure is firm; simultaneously, the contact of casing and stator core is good, does benefit to the heat dissipation, can go out the fine conduction of the heat in the motor stator subassembly, improves radiating efficiency and motor performance.

The heat dissipation efficiency can be further improved by arranging the heat dissipation fins on the static shell;

the ceiling lamp or other lighting equipment can be arranged on the lower shell of the ceiling fan motor, and because the lower shell is fixed and the lighting equipment is arranged below the large fan blade of the ceiling fan, the light of the lighting equipment can not flicker when the large fan blade of the ceiling fan rotates, and discomfort such as vertigo and the like caused to people is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the stator core of fig. 1;

FIG. 3 is a partial cross-sectional view of the lower housing structure of FIG. 1;

fig. 4 is a schematic view of a mounting structure of the stator core and the lower housing in fig. 1;

FIG. 5 is a schematic structural view of the stator assembly of FIG. 1;

FIG. 6 is a schematic structural view of the rotor core of FIG. 1;

FIG. 7 is a partial cross-sectional view of the upper housing structure of FIG. 1;

FIG. 8 is a schematic structural view of the rotor assembly of FIG. 1;

FIG. 9 is a schematic view of a ceiling fan according to an embodiment of the present invention.

In the figure:

1. a stator core; 11. a stator core tooth portion; 12. a stator core conductor slot; 13. a stator core yoke portion; 14. a stator core slot; 2. a stator winding; 3. a lower housing; 31. a lower housing body; 32. a lower housing clamping strip; 4. a rotor core; 41. a tooth portion of the rotor core; 42. a conductor slot of the rotor core; 43. a yoke portion of the rotor core; 5. casting an aluminum conductor; 6. an upper housing; 7. a shaft; 8. a bearing; 9. a fan blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention is described in further detail below with reference to the attached drawing figures:

as shown in fig. 1, a schematic structural diagram of a motor disclosed in an embodiment of the present invention includes a shaft 7, a motor housing, a stator assembly and a rotor assembly disposed in the motor housing, wherein:

the motor housing includes an upper housing 6 and a lower housing 3, and the upper housing 6 and the lower housing 3 are exposed to the air. Wherein the upper housing 6 can rotate around the shaft 7, namely the upper housing 6 is a rotary housing; the lower housing 3 is a stationary type housing, and cannot rotate around the shaft 7. In the present embodiment, the upper case 6 and the lower case 3 are each made of a cast aluminum material.

The rotor assembly comprises a rotor core 4 and a cast aluminum conductor 5; the rotor iron core is formed by winding silicon steel sheets; the rotor core 4 and the cast aluminum conductor 5 are fixed on the upper shell 6; the cast aluminum conductor 5 is cast and molded together with the upper case 6, and is integrated.

Stator module includes stator core 1 and stator winding 2, stator core 1 comprises coiling formula silicon steel sheet, stator winding 2 is fixed on stator core 1, stator core 1 is fixed on casing 3 down.

In the invention, the stator core 1 and the rotor core 4 are arranged along the direction of the shaft 7, the two are close to but not in contact with each other, and a small air gap is arranged in the middle.

In the invention, the working principle between the stator assembly and the rotor assembly is the working principle of the axial magnetic circuit motor, and the working principle is not explained in detail herein.

As shown in fig. 2, it is a schematic structural view of the stator core 1 in fig. 1. In the present embodiment, the stator core 1 includes stator core teeth 11, stator core conductor slots 12, a stator core yoke portion 13, and stator core slots 14. In the present illustration, the stator core conductor slots 12 are provided at the upper portion of the stator core 1 for mounting the stator windings 2; the stator core clamping grooves 14 are arranged at the lower part of the stator core 1, and the stator core clamping grooves 14 in the legend are of a dovetail-shaped groove structure and are used for fixing the stator core 1 on the lower shell 3; the stator core teeth 11 and the stator core yoke 13 both serve to provide a path for the magnetic field within the machine.

As shown in fig. 3, a partial sectional view of the structure of the lower case 3 in fig. 1 is shown. In this embodiment, the lower housing 3 comprises a lower housing body 31 and a lower housing clamping strip 32, wherein the lower housing body 31 and the lower housing clamping strip 32 are integrally cast and formed and integrated into a whole.

Fig. 4 is a schematic view of an installation structure of the stator core 1 and the lower housing 3 in fig. 1. In this embodiment, the lower housing locking strip 32 is cast into the stator core locking slot 14 by using the same material as the lower housing body 31, and the lower housing locking strip 32 can fix the stator core 1 on the lower housing 3 because the lower housing locking strip 32 and the lower housing body 31 form a whole. Wherein, casing main part 31 plays supporting role for stator core 1 down, and casing card strip 32 plays the fixed action for stator core 1 down.

Fig. 5 is a schematic view of the stator assembly of fig. 1. In the present embodiment, the stator winding 2 is fixed to the stator core 1, to be precise, in the stator core conductor slots 12; the stator core 1 is fixed on the lower shell 3, to be precise, fixed with the lower shell 3 through a lower shell clamping strip 32; the lower housing 3 is fixed with the shaft 7, and the shaft 7 is stationary. In the present embodiment, the stator winding 2 is formed of a coil made of a flat copper wire.

Fig. 6 is a schematic structural view of rotor core 4 in fig. 1. In the present embodiment, the rotor core 4 is formed by winding a silicon steel sheet, and includes rotor core teeth 41, rotor core conductor slots 42, and a rotor core yoke portion 43, wherein the rotor core conductor slots 42 are radially arranged on one surface of the rotor core 4.

As shown in fig. 7, a partial sectional view of the structure of the upper case 6 of fig. 1 is shown. In the present embodiment, the upper case 6 and the cast aluminum conductor 5 are made of the same cast aluminum material and are integrally cast and molded, and the two are integrated into a whole.

Fig. 8 is a schematic structural view of the rotor assembly of fig. 1. In the present embodiment, cast aluminum conductors 5 are placed in rotor core conductor slots 42; the cast aluminium conductor 5 acts as a conductor of the rotor assembly and the current flows through it during operation of the motor. Since the upper case 6 is cast together with the cast aluminum conductor 5, the cast aluminum conductor 5 can fix the rotor core 4 to the upper case 6. In this embodiment, a bearing chamber is provided at the center of the upper housing 6, in which the bearing 8 is placed.

Fig. 9 is a schematic view of a ceiling fan according to an embodiment of the present invention. In this embodiment, the fan blades 9 are mounted on the upper housing 6 of the motor, the shaft 7 is inserted into the upper housing 6, and the shaft 7 is used for hanging and supporting the whole ceiling fan.

The invention has the beneficial effects that:

the stator core 1 or the rotor core 4 can be formed by winding silicon steel sheets, and the cost is low. In addition, the stator winding end part does not occupy the axial space, and the motor can be made to be very short in the axial direction and is suitable for flat occasions.

In the invention, the upper shell 6 and the cast aluminum conductor 5 in the rotor assembly are integrally cast, the current heating in the cast aluminum conductor 5 can be directly transmitted to the upper shell 6, and the upper shell 6 is exposed in the air, so that the heat dissipation effect is better; in addition, the upper shell 6 and the cast aluminum conductor 5 in the rotor assembly are cast into a whole, so that the cost is saved, and the fixing effect is good.

According to the invention, the stator core 1 is provided with the clamping groove 14, the clamping groove 14 is internally provided with the cast aluminum clamping strip 32 which is integrally cast and molded with the lower shell 3, and the stator core 1 is fixed on the lower shell 3 through the cast aluminum clamping strip 32, so that the working hour is saved, and the stator core is firm; simultaneously, lower casing 3 and stator core 1 contact well, can go out the fine conduction of the heat in the stator winding 2, improve radiating efficiency and motor performance.

The invention can also install a ceiling lamp or other lighting equipment on the lower shell 3 of the motor, because the lower shell 3 is fixed and the lighting equipment is arranged below the fan blade 9 of the ceiling fan, the light of the lighting equipment can not flicker when the large fan blade 9 of the ceiling fan rotates, and the uncomfortable feelings of vertigo and the like caused to people are avoided. The ceiling fan has the characteristics of large ventilation and refrigeration area, energy conservation, environmental protection, attractive appearance, comfortable body feeling and the like, can be used in occasions such as factories, stations, airports, churches, markets and the like, and can not only cool and refrigerate but also accelerate air circulation and purify air sometimes.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.