CN210867357U - Motor and ceiling fan - Google Patents

Abstract

The utility model discloses a motor and ceiling fan, the motor includes: 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 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. In the utility model, the rotary shell is exposed in the air, the heat dissipation effect is better, and the working efficiency, reliability and stability of the motor are improved; in addition, cost and installation of the core are saved.

Description

Motor and ceiling fan

Technical Field

The utility model belongs to the technical field of the ventilation refrigeration, a motor and ceiling fan are related to, concretely relates to motor and ceiling fan of low-cost and high radiating 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, and thus the process is relatively complicated and the cost is high.

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 utility model discloses will disclose an axial magnetic field's asynchronous machine scheme, can improve above-mentioned problem, the application scenario of specially adapted ceiling fan.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned problem, the utility model provides a motor and ceiling fan.

The utility model discloses a motor, be in including axle, motor casing, setting stator module and rotor subassembly in the motor casing.

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 present invention, the stator core and the rotor core are arranged along the axial direction, and both are close to but do not contact, and have a small air gap in the middle.

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

As another improvement of the utility model, rotor core is solid construction, cast the aluminum conductor and be a monoblock aluminum plate, cast the aluminum conductor and arrange in rotor core with between the stator core to it is fixed with rotor core.

As a further improvement of the utility model, 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 utility model, be equipped with the draw-in groove that is used for fixed iron core on the stator core, it is further again there is the card strip in the draw-in groove, the card strip with static type casing forms a whole, and will stator core fixes on the static type 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 heat dissipating 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 rotary 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 utility model, a hollow structure is arranged in the shaft, and a power line of the motor can pass 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 utility model discloses a ceiling fan, which comprises a large fan blade and a ceiling fan motor; the large fan blade is installed on the motor.

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

the utility model provides a stator core or rotor core can be formed by the coiling of silicon steel sheet, and the waste material is less, and the cost is lower. In addition, the motor of the utility model belongs to axial magnetic circuit structure, and its stator winding tip (or called "solenoid") does not occupy axial space, and the motor realizes flat structure very easily.

In the utility model, the rotating shell and the cast aluminum conductor ('squirrel cage') in the rotor assembly are cast and molded integrally, 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 better, 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.

The utility model discloses be equipped with the draw-in groove on the well stator core have in the draw-in groove with the fashioned cast aluminium card strip of casing integration casting down, cast aluminium card strip will stator core fixes down on the casing. 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 utility model can further improve the heat radiation efficiency by arranging the heat radiation fins on the static shell;

the utility model discloses can install ceiling lamp or other lighting apparatus on the lower casing of ceiling fan motor, because the casing is immovable down, and lighting apparatus arranges the big flabellum below of ceiling fan in, can not cause lighting apparatus's light scintillation when the big flabellum of ceiling fan is rotatory, avoided giving people to cause uncomfortable feelings such as vertigo.

Drawings

Fig. 1 is a schematic structural view 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 accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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 meaning 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 accompanying drawings:

as shown in fig. 1, for the utility model discloses a motor structure schematic diagram, including axle 7, motor casing, setting be in stator module and rotor subassembly in the motor casing, 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.

The utility model discloses in, stator core 1 with rotor core 4 arranges along the direction of axle 7, and both are close to but contactless, and there is little air gap in the middle of.

The utility model discloses in, the theory of operation between stator module and the rotor subassembly is the theory of operation of axial magnetic circuit motor, does not do the elaboration here to its theory of operation.

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.

As shown in fig. 9, it is a schematic structural 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 utility model has the advantages that:

the utility model provides a stator core 1 or rotor core 4 can be formed by the coiling of silicon steel sheet, and the cost is lower. Additionally, the utility model provides a stator winding tip does not occupy axial space, and the motor can be done very shortly in the axial, is fit for flat occasion.

In the utility model, the upper shell 6 and the cast aluminum conductor 5 in the rotor assembly are cast integrally, 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.

In the utility model, 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 cast aluminum clamping strip 32 fixes the stator core 1 on the lower shell 3, thereby saving the working hours and being 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 utility model discloses still can install ceiling lamp or other lighting apparatus on the lower casing 3 of motor, because casing 3 is immovable down, and lighting apparatus arranges ceiling fan flabellum 9 below in, can not cause lighting apparatus's light scintillation when the big flabellum 9 of ceiling fan is rotatory, avoided giving the personnel uncomfortable feelings such as dizzy causing. The utility model discloses a ceiling fan has that the ventilation refrigeration area is big, energy-concerving and environment-protective, the appearance is pleasing to the eye, body feels characteristics such as comfortable, can be used in occasions such as mill, station, airport, church, market, not only can cool down the refrigeration sometimes, air cycle, air-purifying's effect with higher speed in addition.

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.

Claims (11)

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 2, wherein a slot for fixing the core is provided on the stator core.

5. The motor according to claim 3, wherein a slot for fixing the core is provided on the stator core, and a bar is provided in the slot, the bar being integrated with the stationary type housing and fixing the stator core to the stationary type 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. The motor according to claim 9, wherein one of the upper and lower housings is fixed and is a stationary type housing on which a lighting device is mounted, and a power supply cable of the lighting device is passed through a hollow structure of the 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.

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