CN211701801U - A multi-stator motor - Google Patents

Abstract

The utility model discloses a multi-stator motor, which relates to the technical field of permanent magnet motors, in particular to a multi-stator motor, which comprises a rotating shaft, a rotor is fixedly connected to the top of the rotating shaft, and a right end bearing is fixedly sleeved on the outside of the rotating shaft and the left end bearing, the top of the right end bearing is fixedly connected with the right casing, the top of the inner cavity of the right casing is fixedly connected with a first stator, the first stator is located on the top of the rotor, the right casing A second stator is fixedly connected to the bottom of the inner cavity, and the second stator is located at the bottom of the rotor. The multi-stator motor, through the cooperative use of the first stator, the second stator, the third stator and the fourth stator, acts on the two poles of the permanent magnet inside the rotor at the same time, which improves the utilization efficiency of the permanent magnet of the rotor, thereby increasing the The torque and output power of the motor.

Description

A multi-stator motor

technical field

The utility model relates to the technical field of permanent magnet motors, in particular to a multi-stator motor.

Background technique

Motor refers to an electromagnetic device that realizes electric energy conversion or transmission according to the law of electromagnetic induction. According to its structure and working principle, it can be divided into DC motor, asynchronous motor and synchronous motor. , VCRs, DVD players, electric shavers, hair dryers, electronic watches, toys, etc. Permanent magnet DC motors are also composed of stator poles, rotors, brushes, shells, etc. The stator poles are made of permanent magnets, which can be Divided into cylinder type and tile type and so on.

At present, traditional induction AC asynchronous motors and permanent magnet synchronous motors use motors with a single stator and rotor. The output power and speed of the motor are changed by adjusting the voltage, but changing the voltage requires a transformer. The structure of the motor is more complicated, and changing the voltage will increase the loss of electric energy and affect the conversion efficiency of the motor.

Utility model content

In order to solve the above problems, the present invention provides a multi-stator motor. In view of the deficiencies of the prior art, the present invention provides a multi-stator motor, which solves the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a multi-stator motor, comprising a rotating shaft, a rotor is fixedly connected to the top of the rotating shaft, and a right end bearing and a left end bearing are fixedly sleeved on the outside of the rotating shaft, so The top of the right end bearing is fixedly connected with the right casing, the top of the inner cavity of the right casing is fixedly connected with a first stator, the first stator is located on the top of the rotor, and the bottom of the inner cavity of the right casing is fixed A second stator is connected, and the second stator is located at the bottom of the rotor.

Optionally, a left housing is fixedly connected to the top of the left end bearing, a third stator is fixedly connected to the top of the inner cavity of the left housing, the third stator is located on the top of the rotor, and the inner cavity of the left housing is fixedly connected. The bottom of the rotor is fixedly connected with a fourth stator, and the fourth stator is located at the bottom of the rotor.

Optionally, the first stator corresponds to the second stator, and the third stator corresponds to the fourth stator.

Optionally, the first stator and the third stator are symmetrical with respect to a mid-perpendicular line of the rotating shaft.

Optionally, a cantilever is provided on the top of the rotating shaft, and the rotor is fixedly mounted on the cantilever of the rotating shaft.

The utility model provides a multi-stator motor, which has the following beneficial effects:

1. The multi-stator motor, through the cooperation of the first stator, the second stator, the third stator and the fourth stator, utilizes the rotating magnetic field generated by the plurality of stators to act on the two poles of the permanent magnet inside the rotor at the same time, thus improving the performance of the rotor. The utilization efficiency of permanent magnets increases the torque and output power of the motor, and makes the performance of the motor better.

2. The multi-stator motor can adjust the output of motor torque by setting multiple stators outside the rotor, and adjust the on-off of different stators to adjust the output of motor torque, and use the change of the number of motor stators to adjust the speed output of the motor without changing the voltage. The conversion efficiency of the motor to electric energy is reduced, and the consumption of electric energy is reduced. When the motor is in constant torque output, all the stators are connected, the torque is increased, and the speed of the rotor is increased. When the motor is in constant power output, part of the stator is connected, Other stators are in a non-working state, which effectively reduces the decay speed of the permanent magnets of the motor, reduces the consumption of electric energy, and prolongs the service life of the motor.

Description of drawings

Fig. 1 is the schematic diagram of the first structure of the utility model;

Fig. 2 is the schematic diagram of the second structure of the utility model;

FIG. 3 is an elevational structural view of the motor of the present invention.

In Figure 1: 1, shaft; 2, rotor; 3, right end bearing; 4, right housing; 5, first stator; 6, second stator; 7, left end bearing; 8, left housing; 9, first Three stators; 10. Fourth stator.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Please refer to FIG. 1 to FIG. 3, the utility model provides a technical solution:

Embodiment 1: a multi-stator motor, including a rotating shaft 1, a rotor 2 is fixedly connected to the top of the rotating shaft 1, a cantilever is arranged on the top of the rotating shaft 1, and the rotor 2 is fixedly installed on the cantilever of the rotating shaft 1, and is arranged on the outside of the rotating shaft 1. The cantilever is convenient for the installation of the rotor 2, which reduces the number of motor parts, simplifies the process of motor processing and assembly, and improves the production capacity of the motor. The top of the right casing 4 is fixedly connected with the right casing 4, the top of the inner cavity of the right casing 4 is fixedly connected with the first stator 5, the first stator 5 is located on the top of the rotor 2, and the bottom of the inner cavity of the right casing 4 is fixedly connected with the first stator 5. The second stator 6 and the second stator 6 are located at the bottom of the rotor 2. Through the cooperation of the first stator 5 and the second stator 6, the number of stators is adjusted to adjust the change of the rated power of the motor, so that the motor is always in the high-efficiency range, To improve the efficiency of energy utilization, the left housing 8 is fixedly connected to the top of the left end bearing 7 , and the third stator 9 is fixedly connected to the top of the inner cavity of the left housing 8 . The third stator 9 is located on the top of the rotor 2 and inside the left housing 8 The bottom of the cavity is fixedly connected with a fourth stator 10, the first stator 5 corresponds to the second stator 6, and the third stator 9 corresponds to the fourth stator 10. Through the cooperation of the third stator 9 and the fourth stator 10, The two poles of the permanent magnet are simultaneously subjected to the force of the stator, which improves the utilization rate of the magnetic field and increases the power density of the motor. The first stator 5 and the third stator 9 are symmetrical about the vertical line of the rotating shaft 1, and the fourth stator 10 is located in the rotor. 2 bottom.

Embodiment 2: a multi-stator motor, comprising a rotating shaft 1, a rotor 2 is fixedly connected to the top of the rotating shaft 1, a cantilever is provided on the top of the rotating shaft 1, and the rotor 2 is fixedly installed on the cantilever of the rotating shaft 1, and is arranged on the outside of the rotating shaft 1. The cantilever is convenient for the installation of the rotor 2, which reduces the number of motor parts, simplifies the process of motor processing and assembly, and improves the production capacity of the motor. The top of the right casing 4 is fixedly connected with the right casing 4, the top of the inner cavity of the right casing 4 is fixedly connected with the first stator 5, the first stator 5 is located on the top of the rotor 2, and the bottom of the inner cavity of the right casing 4 is fixedly connected with the first stator 5. The second stator 6 and the second stator 6 are located at the bottom of the rotor 2. Through the cooperation of the first stator 5 and the second stator 6, the number of stators is adjusted to adjust the change of the rated power of the motor, so that the motor is always in the high-efficiency range, To improve the efficiency of energy utilization, the top of the left end bearing 7 is fixedly connected with the left housing 8, and the bottom of the inner cavity of the left housing 8 is fixedly connected with a third stator 9, which is located at the bottom of the rotor 2, and the third stator 9 is connected to the bottom of the rotor 2. The second stator 6 is symmetrical about the vertical line of the rotating shaft 1. By fixing the first stator 5 to the casing, the end cover is designed into a cup shape. The second stator 6 and the third stator 9 are installed on the right casing 4 and 9 respectively. On the left casing 8, the permanent magnets mounted on the rotating shaft 1 are simultaneously affected by the inner and outer rotors, thereby improving the utilization efficiency of the permanent magnets, thereby improving the overall power density and torque output of the motor.

To sum up, when the multi-stator motor is in use, a rotating magnetic field is generated by the first stator 5 , the second stator 6 , the third stator 9 and the fourth stator 10 and acts on the rotor 2 to generate a magnetodynamic torque, so that the rotor 2 rotates , use the rotor 2 to drive the shaft 1 to rotate.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (5)

1. A multi-stator motor comprises a rotating shaft (1), and is characterized in that: the top fixedly connected with rotor (2) of pivot (1), the fixed cover in outside of pivot (1) has connect right-hand member bearing (3) and left end bearing (7), the top fixedly connected with right side shell (4) of right-hand member bearing (3), the first stator (5) of top fixedly connected with of right side shell (4) inner chamber, first stator (5) are located the top of rotor (2), the bottom fixedly connected with second stator (6) of right side shell (4) inner chamber, second stator (6) are located the bottom of rotor (2).

2. The multiple stator electric machine of claim 1, wherein: the top fixedly connected with left side shell (8) of left end bearing (7), the top fixedly connected with third stator (9) of left side shell (8) inner chamber, third stator (9) are located the top of rotor (2), the bottom fixedly connected with fourth stator (10) of left side shell (8) inner chamber, fourth stator (10) are located the bottom of rotor (2).

3. The multiple stator electric machine of claim 2, wherein: the first stator (5) corresponds to the second stator (6), and the third stator (9) corresponds to the fourth stator (10).

4. The multiple stator electric machine of claim 2, wherein: the first stator (5) and the third stator (9) are symmetrical about a perpendicular bisector of the rotating shaft (1).

5. The multiple stator electric machine of claim 1, wherein: the top of pivot (1) is provided with the cantilever, rotor (2) fixed mounting is on the cantilever of pivot (1).

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