Special Permanent-magnet DC Motor Electric Toothbrush Sonic Toothbrush

Product Details

1.  General
 This  specification applies to 2040ZDF-B-1-3.7 motor.

2.Operating condition

No.

Items

Specification

2-1

Rated voltage

3.7V DC

2-2

Operating voltage

3.3-4.5    V DC

2-3

Operating frequency

230~330Hz

2-4

Rated frequency

260Hz(Type)

2-5

Rated load

3.9g

2-6

Motor Position

Any    positions

2-7

Temperature、Humidity Range

1)Working    temperature: -10℃~60℃,    Humidity:≤90 %RH
     2)Storage    temperature: -20℃~70℃,    Humidity:≤80 %RH

2-8

Measuring condition

Measure     all normal temperature and humidity if any doubt    about judgement , measurements shall within    20±3℃ 60±5%RH

2-9

Appearance

There shall     be  no  evidence     of  mechanical  damage, and shall not have inadequate corrosion and so on.

3.Electrical characteristics

No.

Item

Specification

Type

Condition-Remark

3-1

Rated frequency

260Hz

 

 

3-2

Load current

400mA±20%

400mA

At rated voltage and rated load and rated frequency and 80% Duty cycle

3-3

No load current

60~160mA

90mA

At rated voltage and NO load and frequency 290Hz and 80% Duty cycle

3-4

Terminal
     resistance

3.2Ω±15%

3.2Ω

Measure between terminals

3-5

torque

170gf.cm Min

220gf.cm

At rated voltage

3-6

Starting
     voltage

3.3V DC Max

3.0VDC

Minimum Voltage for  starting (ON/OFF Test)

3-7

Insulation
     resistance

10MΩ Min

 

At 100V DC between  motor terminal and case

3-8

Mechanical Noise

75dB(A)Max

65dB(A)

 

 

4、Reliability

  NO.

Item

Test condition

Requirements

4-1

Life

Voltage:3.7V DC
Rated Load  200g
Environment
Normal temperature and humidity
260Hz ,80%,
2minON ,0.5min OFF 150H。

After the test ,motors shall be approved as specified in item 5-1

4-2

Low temp
 exposure

Temperature:-20±2℃
Time:24hours

After 24 hours exposure in ordinary Temperature and humidity,motors shall be approved as specified in item 5-2

4-3

High temp
     exposure

Temperature:70±2℃
Time :24hours

4-4

Humidity
 exposure

Temperature :40±2℃
Humidity:90±5%Rh
Time:48hours

4-5

Thermal shock

After 2 hours exposure in ordinary temperature and humidity,motors shall be approved as specified in item 5-3

4-6

Free fal

Set the motors in the carton; Drop the motors with carton on the  oncrete    floor from 75cm in height. Drop once in each of the six perpendicular plants, totally 6 times。

 

Height:0.75m
Direction:±x, ±y, ±z
Number of times:Each 1 times

After the test , motors shall be approved as specified in item 5-1

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