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Paper shredder provided with permanent magnet synchronous motor

A technology for permanent magnet synchronous motors and paper shredders, applied to synchronous motors with stationary armatures and rotating magnets, electrical components, electromechanical devices, etc., can solve problems such as immature motor manufacturing processes, and achieve low cost and easy use Ideal effect and long working hours

Inactive Publication Date: 2012-12-19
DONGGUAN BONSEN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, for a long period of time before, because the price of metal on the market is cheaper than that of magnets, and the manufacturing process of motors is immature, the price of asynchronous motors is cheaper than that of synchronous motors, and technicians are more inclined to choose asynchronous motors. power output device

Method used

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  • Paper shredder provided with permanent magnet synchronous motor
  • Paper shredder provided with permanent magnet synchronous motor
  • Paper shredder provided with permanent magnet synchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1 to Figure 2 As shown, a paper shredder using a permanent magnet synchronous motor of the present invention includes a paper shredding device 1, the paper shredding device 1 is connected with a transmission motor, the transmission motor is a permanent magnet synchronous motor 2, and the paper shredding device 1 is connected to a transmission motor. The machine is provided with a mechanical control device 3 for controlling the rotation direction of the permanent magnet synchronous motor 2 .

[0046] The paper shredding device 1 is provided with a power transmission system 12 and a paper shredding knife rod 13. One transmission end of the power transmission system 12 is connected to the permanent magnet synchronous motor 2, and the other transmission end is connected to the paper shredding knife rod 13. The mechanical control The device 3 is a mechanical locking switching mechanism used for the locked-rotor power transmission system 12, the locked-rotor p...

Embodiment 2

[0055] Such as Figure 7 to Figure 10 As shown, the difference between this embodiment and Embodiment 1 is that the mechanical control device 3 is arranged in the power transmission system 12, and the mechanical control device 3 includes a forward and reverse dial button 41, a stall lever 42, and a friction gear 43 and the boss blocking gear 44, the upper part of the blocking lever 42 is plugged into the groove of the forward and reverse toggle button 41, and the back side of the boss blocking gear 44 is provided with a blocking boss 441, The locking boss 441 abuts against the lower part of the locking lever 42, the friction gear 43 meshes with the boss locking gear 44, and a pinion is arranged on the front of the boss locking gear 44, The pinion gear meshes with the power transmission system 12 of the paper shredding device 1 . The friction gear 43 abuts against the pre-tensioning reed 5 , and the pre-tensioning reed 5 abuts the friction gear 43 and the locking rod 42 to fit...

Embodiment 3

[0061] Such as Figure 11 to Figure 13 As shown, the difference between this embodiment and Embodiment 1 is that the mechanical control device 3 is arranged on the permanent magnet synchronous motor 2, and the mechanical control device 3 includes a forward and reverse toggle lever 34, a rotating shaft 35, a forward rotation One-way ratchet 36, forward rotation one-way ratchet 37, reverse one-way ratchet 38 and reverse one-way ratchet 39, the rotating shaft 35 is affixed to the back side of the permanent magnet synchronous motor 2, and the forward and reverse The rotating toggle lever 34 is rotatably arranged on the rotating shaft 35, the forward rotation one-way pawl 37 and the reverse rotation one-way ratchet 39 are both connected to the forward rotation toggle lever 34, and the forward rotation The one-way ratchet 36 and the reverse one-way ratchet 38 respectively correspond to the forward rotation one-way ratchet 37 and the reverse rotation one-way ratchet 39 fixedly connec...

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PUM

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Abstract

The invention relates to the technical field of paper shredder, in particular to a paper shredder provided with a permanent magnet synchronous motor. The paper shredder comprises a paper shredding device, wherein the paper shredding device is connected with a transmission motor; the transmission motor is a permanent magnet synchronous motor; and the paper shredder is provided with a mechanical control device for controlling the rotating direction of the permanent magnet synchronous motor. According to the paper shredder, mechanical reversing between positive and negative rotation of the paper shredder is realized by mainly matching the mechanical control device with the permanent magnet synchronous motor; and the permanent magnet synchronous motor is low in cost, and has long working time, low working noise and an ideal use effect.

Description

technical field [0001] The invention relates to the technical field of paper shredders, in particular to a paper shredder using a permanent magnet synchronous motor. Background technique [0002] The shredders in the prior art realize the forward rotation and reverse rotation of the shredder knife mainly through its internal circuit control, and switch the forward rotation and reverse rotation of the motor by changing the direction of the current, and then drive the shredder knife to rotate forward and reverse. Turn; although its structure is simple, it needs circuit control. First, the circuit board is affected by various environments, and the circuit board is prone to failure. Second, the working stability of the circuit control is poor, and malfunctions may occur. Third, the circuit The design and production cost of the board is high, and the motor cost of this kind of paper shredder is high. Fourth, the damage to the motor is great. When the motor is switched between for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C18/06B02C18/16B02C18/24B02C25/00H02K7/116H02K21/14
Inventor 王兴杰
Owner DONGGUAN BONSEN ELECTRONICS