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Dual Rotor Direct Drive Motor

A direct-drive motor and dual-rotor technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of multi-energy consumption, large loss of rotors and pulsator shafts, and no buffering, so as to improve transmission efficiency and stability, The effect of reducing energy consumption and saving energy consumption

Active Publication Date: 2020-01-21
QINGDAO HAIER WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, after many experiments, it was found that it also has the following defects: since the optimal operating range of the rotor driven by the direct drive motor is 600-800 rpm, the energy consumption is relatively small at this time, and if the rotor is controlled to rotate at a low speed, it can The energy consumption is high, and additional energy consumption is required to control the low speed, which is much higher than the high speed consumption. The above structure adopts the scheme that the double rotors directly drive the pulsator and the inner tub respectively. When washing, the inner tub and the pulsator The rotation speed of the wheel is low, generally 100-150 rpm. If the low rotation speed of the two rotors is maintained during washing and rinsing at the same time, high additional energy consumption is required. Due to the washing process, it affects the cleaning ratio of the clothes. Among the factors, the speed of controlling the wave wheel to stir the clothes and water flow accounts for a large proportion. If the two rotors maintain two low speeds together, more energy consumption will be required.
[0010] In addition, due to the frequent changes in the speed of the pulsator during the washing process, the variable speed of the rotor directly acts on the pulsator shaft and the pulsator, and the change of the speed is blunt without buffering, resulting in entanglement of the clothes, affecting the washing effect and causing a large loss to the rotor and the pulsator shaft

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] like figure 1As shown, the stator 3 of the dual-rotor direct-drive motor in this embodiment is a disc-shaped structure, the gear box 4 is located in the concave cavity in the middle of the stator 3, and the two rotors 1 and 2 are outer rotors, respectively located in the gear box. Above and below the box 4, the upper rotor 2 is connected to the gear box casing 40, the lower rotor 1 is connected to the input shaft 6 of the gear box, and the mounting part 30 of the stator 3 protrudes from between the upper rotor 2 and the lower rotor 1 to the outside.

Embodiment 2

[0034] Such as figure 2 and image 3 As shown, the stator 3 of the dual-rotor direct-drive motor in this embodiment is a disc-shaped structure with a concave center, which sequentially includes a central bearing seat 31, a first rotor mounting portion 32, a stator winding 33, and a second rotor mounting portion from the inside to the outside. part 34 and the mounting seat 35 located on the outer edge, the gear box 4 is located in the central recess of the stator 3, the bearing seat 31 is located below the gear box 4, and the center is provided with a through hole 310 for the input shaft 6 to pass through. A rotor mounting portion 32 is located outside the peripheral wall of the gear case housing 40 .

[0035] The first rotor mounting part 32 is a groove opening downward, and the second rotor mounting part 34 is a groove opening upward. The two rotors are the inner rotor 1 and the outer rotor 2, and the outer rotor 2 is arranged on the second rotor mounting part 34 , the bea...

Embodiment 3

[0037] Such as Figure 4 As shown, the difference between this embodiment and the second embodiment above is that the first rotor mounting part 32 is a groove with an upward opening, the second rotor mounting part 34 is a groove with a downward opening, and the inner rotor 2 and the gear The gearbox housing 40 is connected, the outer rotor 1 is connected to the input shaft 6, the inner rotor 2 is arranged on the first rotor mounting part 32, and the bearing part 20 of the inner rotor is located above the stator 3, matching the shape of the stator 3, and has a The cavity for accommodating the gear box 4 , the outer rotor 1 is arranged on the second rotor installation part 34 , and the bearing part 10 of the outer rotor is located under the stator 3 .

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Abstract

The present invention discloses a dual-rotor direct drive motor which comprises two rotors, a stator and a gearbox. One rotor is connected to the power input end of the gearbox, and the other rotor is connected to the shell of the gearbox. The gearbox comprises a shell, a gear mechanism arranged in the shell, an input shaft and an output shaft. The shell and the gear mechanism rotate mutually independently. The output shaft is connected to the output end of the gear mechanism in the gearbox. One end of the input shaft is connected to a rotor, and the other end is connected to the input end of the gear mechanism in the gearbox. The dual-rotor direct drive motor of the invention has the advantages of energy consumption saving, stable output and high transmission efficiency.

Description

technical field [0001] The invention relates to a driving device, in particular to a double-rotor direct drive motor with a gear box. Background technique [0002] The rotation of the pulsator and the inner barrel of the traditional pulsator washing machine is that the motor drives the belt through the pulley to transmit the power to the deceleration clutch. The deceleration clutch converts the high speed of the motor into the lower speed required by the different washing processes of the washing machine through its internal gear structure. At the same time, according to different washing methods, the deceleration clutch uses different gear structures to transmit different rotation directions and rotation forms to the pulsator. [0003] In this structure, since the deceleration clutch and the motor are horizontally arranged at the bottom of the outer barrel, the structure of the whole system is relatively large. On the other hand, the deceleration clutch is located at the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/116H02K16/02
Inventor 吕佩师许升杨林
Owner QINGDAO HAIER WASHING MASCH CO LTD