Statorless double drive energy saving motor

Abstract

The application discloses a kind of no-stator double-drive energy-saving motor, including inner rotor, outer rotor, power shaft, power gear and inner rotor rotating shaft, the outer rotor inside is equipped with winding slot, winding slot is equipped with coil winding for providing magnetic field, the inner rotor is located in the inner rotor of outer rotor, and can rotate around inner rotor rotating shaft, the outer rotor outer circle is equipped with outer rotor gear, the power gear is located between inner rotor and outer rotor, and simultaneously with inner rotor gear and outer rotor gear meshing, the power gear is fixed on the power shaft.This motor abandons stator, and the stator in the original motor is set as outer rotor, so that the internal energy originally consumed in stator base is converted into mechanical energy, and the no-stator energy-saving effect is realized.

Description

Technical Field

[0001] This invention relates to the field of energy-saving electric motor technology, specifically to a statorless dual-drive energy-saving electric motor. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It utilizes a rotating magnetic field generated by a current-carrying coil (stator winding) that acts on a rotor (such as a squirrel-cage closed aluminum frame) to create magnetoelectric torque. Electric motors are classified into DC motors and AC motors based on the power source they use. Most motors in power systems are AC motors, which can be synchronous or asynchronous (the stator magnetic field speed and rotor rotation speed are not synchronized). An electric motor mainly consists of a stator and a rotor. The direction of the force on a current-carrying conductor in a magnetic field depends on the direction of the current and the direction of the magnetic field lines. The working principle of an electric motor is that the magnetic field exerts a force on the current, causing the motor to rotate.

[0003] Since the invention of electric motors, they have relied on the magnetic field effect of the stator and rotor as driving energy. While the rotor outputs effective work, the stator bears a reverse force that is greater than or equal to the effective work of the rotor. This directional work is absorbed by the base of the stator or a fixed object. Therefore, the actual output work of the electric motor is the sum of the effective work and the reverse work done by the directional force. Thus, while the electric motor is running and doing work, one-tenth of the energy is consumed and absorbed by the base. Moreover, most electric motors have a stator, so a statorless energy-saving electric motor is currently lacking in the market. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a statorless dual-drive energy-saving motor, which converts the stator in the original motor into an external rotor and uses the rotation of the external rotor to provide power to the drive shaft.

[0005] To achieve the above objectives, the present invention discloses a statorless dual-drive energy-saving motor, comprising an inner rotor, an outer rotor, a power shaft, a power gear, and an inner rotor shaft. The outer rotor has winding slots inside, and coil windings for providing a magnetic field are provided in the winding slots. The inner rotor is located inside the outer rotor and can rotate around the inner rotor shaft. An inner rotor gear is provided outside the inner rotor, and an outer rotor gear is provided on the inner ring of the outer rotor. The power gear is located between the inner rotor and the outer rotor and meshes with both the inner rotor gear and the outer rotor gear. The power gear is fixed on the power shaft.

[0006] Furthermore, a conductive ring is provided on the outer side of the outer rotor, which is connected to the coil winding on the outer rotor and provides current to the coil winding.

[0007] Furthermore, the electric motor also includes a cooperating gear, which meshes with the inner rotor gear and is located on the opposite side of the power gear.

[0008] Furthermore, the power shaft and the inner rotor shaft are respectively connected to an external drive device, and each independently provides power to the external drive device.

[0009] Furthermore, the number of the power shaft and the power gear is one or more.

[0010] Furthermore, the number of cooperating gears is the same as the number of driving gears.

[0011] Furthermore, bearings are installed on the inner rotor shaft, with the bearings distributed on both sides of the motor.

[0012] Furthermore, the outer rotor's housing is mounted on a bearing.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. The stator is eliminated and the original stator in the motor is set as an external rotor, thereby converting the internal energy originally consumed in the stator base into mechanical energy, achieving the energy-saving effect of statorless motor.

[0015] 2. The outer rotor generates an inward force on the power shaft, and the inner rotor generates an outward force on the power shaft. The inward and outward forces act on the power shaft simultaneously, generating a resultant force on the power shaft, which greatly improves the output power of the power shaft, makes full use of the actual power generated by the motor, and thus doubles the actual output power of the motor.

[0016] 3. It has dual drive of internal rotor shaft and power shaft, which further utilizes the output power of electric motor and the efficiency of converting electrical energy into mechanical energy.

[0017] 4. The output speed of the power shaft can be changed by altering the difference in linear speed ratio between the power shaft and the inner and outer rotors without sacrificing torque. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a statorless dual-drive energy-saving electric motor according to the present invention;

[0019] Figure 2 This is a front view of a statorless dual-drive energy-saving electric motor according to the present invention;

[0020] Figure 3 This is a top view of a statorless dual-drive energy-saving electric motor according to the present invention;

[0021] As shown in the figure: 1-Inner rotor; 2-Outer rotor; 3-Power shaft; 4-Power gear; 5-Inner rotor shaft; 6-Cooperating gear. Detailed Implementation

[0022] The electric motor in the prior art mainly consists of the following two components: stator and rotor. The stator is equipped with energized coils (i.e., stator windings), which generate a rotating magnetic field. The rotor rotates under the action of the rotating magnetic field, thereby converting the electrical energy passed into the motor into mechanical energy for output.

[0023] This invention discloses a statorless dual-drive energy-saving motor, which eliminates the stator in a traditional drive motor and transforms it into an external rotor, such as... Figure 1 and Figure 2 As shown, the present invention discloses a statorless dual-drive energy-saving motor, the main body of which includes an inner rotor 1, an outer rotor 2, a power shaft 3, a power gear 4, and an inner rotor shaft 5. The outer rotor 2 has a winding slot inside, and a coil winding for providing a magnetic field is provided in the winding slot. The inner rotor 1 is located inside the outer rotor 2 and can rotate around the inner rotor shaft 5. An inner rotor gear is provided outside the inner rotor 1, and an outer rotor gear is provided inside the outer rotor 2. The power gear 4 is located between the inner rotor 1 and the outer rotor 2 and meshes with both the inner rotor gear and the outer rotor gear. The power gear 4 is fixed on the power shaft 3.

[0024] A conductive ring is provided on the outer side of the outer rotor 2. The conductive ring is connected to the coil winding on the outer rotor 2 and provides current to the coil winding.

[0025] This electric motor also includes a cooperating gear 6, which meshes with the inner rotor gear and is located on the opposite side of the power gear 4. The purpose of setting the cooperating gear 6 is that, since the power gear 4 meshes with the inner rotor gear, an external force will be applied to the inner rotor gear, which will put pressure on the bearing of the inner rotor shaft 5, causing bearing wear. In order to reduce the impact of the pressure of the power gear 4 on the bearing, the cooperating gear 6 is set on the opposite side of the power shaft gear 4 to counteract this pressure.

[0026] like Figure 3 As shown: Both the power shaft 3 and the inner rotor shaft 5 are connected to an external drive device.

[0027] The working principle of this motor is as follows: When an external current is introduced into the winding of the outer rotor 2, the winding of the outer rotor 2 generates a rotating magnetic field. The inner rotor 1 starts to rotate under the action of the rotating magnetic field. At the same time, since the stator of this motor is eliminated, the stator base no longer exists. At this time, the outer rotor 2 rotates in the opposite direction of the rotation of the inner rotor 1 under the action of the inner rotor 1. Since the power gear 4 meshes with the inner rotor gear and the outer rotor gear at the same time, the power gear 4 also rotates in the opposite direction of the rotation of the inner rotor 1. Finally, under the action of the outer rotor 1 and the inner rotor 2, the speed balance is achieved.

[0028] Since both the power shaft 3 and the inner rotor shaft 5 of this electric motor are connected to external drive devices, this electric motor has a dual drive function.

[0029] The motor can be supported in, but is not limited to, the following three ways:

[0030] 1. Insert the two drive units of the motor directly into the device that needs to be driven to fix the motor.

[0031] 2. Bearings are installed on the inner rotor shaft 5 and its reverse extension shaft. The bearings are distributed on both sides of the motor. The motor can be supported by installing bearings on both sides of the motor.

[0032] 3. The motor can be supported by directly mounting the outer rotor 2's outer casing onto the bearing.

[0033] Since the stator is eliminated, the heavy stator base is also eliminated, making this motor lighter than a drive motor. However, since the inner rotor 1 and the outer rotor 2 act on the power gear 4 at the same time, in order to prevent the power gear 4 and the power shaft 3 from breaking, the present invention has high requirements for the toughness and quality of the power gear 4 and the power shaft 3.

[0034] The method for calculating the output speed of the drive shaft is as follows:

[0035] Let the total speed of the motor be X (known), the speed of the outer rotor shaft be Y (unknown), the speed of the drive shaft be Z (unknown), and the number of teeth of the outer rotor gear, inner rotor gear, and drive shaft gear be a, b, and c respectively, all with a module of 1. Then:

[0036] Y + (a / b) * Y = X;

[0037] The rotational speed Y of the outer rotor shaft is obtained;

[0038] Z = (b / c) * Y;

[0039] The rotational speed Z of the drive shaft is obtained;

[0040] Therefore, it can be seen that by changing the linear speed ratio of the outer rotor gear, the inner rotor gear, and the drive shaft gear, the speed of the drive shaft can be changed as needed.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A statorless dual drive energy saving motor characterized by, The motor comprises an inner rotor (1), an outer rotor (2), a power shaft (3), a power gear (4), a cooperating gear (6) and an inner rotor rotating shaft (5), the outer rotor (2) is internally provided with a winding slot, the winding slot is internally provided with a coil winding for providing a magnetic field, the outer side of the outer rotor (2) is provided with a conductive ring, the conductive ring is connected with the coil winding on the outer rotor (2) and provides current for the coil winding, the inner rotor (1) is located inside the outer rotor (2) and can rotate around the inner rotor rotating shaft (5), the outer part of the inner rotor (1) is provided with an inner rotor gear, the inner circle of the outer rotor (2) is provided with an outer rotor gear, the power gear (4) is located between the inner rotor (1) and the outer rotor (2) and is engaged with the inner rotor gear and the outer rotor gear at the same time, the power gear (4) is fixed on the power shaft (3), the cooperating gear (6) is engaged with the inner rotor gear and located on the side opposite to the power gear (4), the outer rotor (2) generates an inward force on the power gear (4), the inner rotor (1) generates an outward force on the power gear (4), the inward force and the outward force act on the power shaft (3) at the same time, generating a combined force on the power shaft (3), the power shaft (3) is connected with an external driving device, the actual power generated by the motor is fully utilized to improve the output power of the power shaft (3).

2. A statorless double drive energy saving motor as claimed in claim 1, wherein, The power shaft (3) and the inner rotor rotating shaft (5) are respectively connected with external driving devices and independently provide power for the external driving devices.

3. A statorless double drive energy saving motor as claimed in claim 1, wherein, The number of the power shaft (3) and the power gear (4) is one or more.

4. A statorless double drive energy saving motor as claimed in claim 1, wherein, The number of the cooperating gear (6) is the same as that of the power gear (4).

5. A statorless double drive energy saving motor as claimed in claim 1, wherein, The inner rotor rotating shaft (5) is provided with bearings, and the bearings are distributed on both sides of the motor.

6. A statorless double drive energy saving motor as claimed in claim 1, wherein, The shell of the outer rotor (2) is mounted on the bearings.

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