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Coreless motor

A coreless cup and PCB board technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of large resistance and increased proportion of resistance, and achieve the reduction of motor resistance, reduction of motor resistance and temperature rise Reduced effect

Pending Publication Date: 2021-01-08
SHANGHAI MOONS ELECTRICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resistance of the winding and the PCB board line is too large, and because the coreless motor winding resistance is low, the proportion of the line resistance in the PCB board increases. It is particularly important to reduce or remove this resistance

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 2 and image 3 As shown, a hollow cup motor includes a rotor 3, a stator 4 and a PCB board 6, the stator 4 is provided with a winding 4.1, and the taps of the winding 4.1 pass through the PCB board 6 and directly extend as terminals, so that Eliminate internal connection lines and reduce resistance.

[0026] In the present invention, the winding tap is connected to the customer connection terminal to save the internal circuit of the intermediate PCB board, so as to reduce the resistance. The winding 4.1 is wound with self-adhesive wire with a thick wire diameter, which can effectively reduce the resistance while ensuring the performance of the motor.

[0027] The PCB board 6 is provided with through holes for taps to pass through. The through hole is a waist hole, which is convenient for fine adjustment. The number of said through holes is set according to needs, preferably 3.

Embodiment 2

[0029] Such as Figure 4 and Figure 5 As shown, the taps of the winding 4.1 and the terminals (wire harness / copper sheet, etc.) are welded on the PCB board 6 together, so as to save the internal connection line and reduce the resistance. The PCB board 6 is provided with a Solder holes for tap and terminal soldering. The welding holes are waist-shaped holes, which are convenient for fine-tuning. The number of the welding holes is set according to needs, preferably 3. All the other are with embodiment 1.

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Abstract

The invention relates to a coreless motor which comprises a rotor (3), a stator (4) and a PCB (6), a winding (4.1) is arranged in the stator (4), taps of the winding (4.1) penetrate through the PCB (6) and directly extend to serve as wiring ends, or each tap of the winding (4.1) and the corresponding wiring end are welded in a welding hole of the PCB (6) together. Compared with the prior art, thecoreless motor has the advantages of improving the motor efficiency, reducing the temperature rise and the like.

Description

technical field [0001] The invention relates to a motor, in particular to a hollow cup motor. Background technique [0002] The coreless motor has outstanding energy-saving characteristics, sensitive and convenient control characteristics and stable operation characteristics. The coreless motor of the prior art is welded on the PCB board 6 through the inner winding tap of the stator 4, and connects the user terminal 9 through the circuit in the PCB board 6, such as figure 1 shown. However, the resistance of the winding and the PCB circuit is relatively large, and because the winding resistance of the coreless motor is low, the proportion of the circuit resistance in the PCB increases. It is particularly important to reduce or remove this resistance. [0003] In addition, the existing motor structure can also refer to US8946962B2 where the lead wires of the windings are connected to the lead wires of the motor through the circuit board. For some motors with small resistance...

Claims

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Application Information

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IPC IPC(8): H02K3/04H02K3/50
CPCH02K3/04H02K3/50
Inventor 唐斌松李志辉金万兵
Owner SHANGHAI MOONS ELECTRICAL APPLIANCE
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