This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of single-phase permanent magnet stepper motors for pointer-type quartz watches (hereinafter referred to as "motors"). This standard applies to the manufacture and inspection of motors for pointer-type quartz watches. QB/T 1537-1992 Single-phase permanent magnet stepper motors for pointer-type quartz watches QB/T1537-1992 Standard download decompression password: www.bzxz.net

Light Industry Standard of the People's Republic of China
Subject Content and Scope of Application of Single-phase Permanent Magnet Stepper Motor for Pointer-type Quartz Watches
QB/T1537--1992
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of single-phase permanent magnet stepper motors for pointer-type quartz watches (hereinafter referred to as "motors"). This standard applies to the manufacture and inspection of motors for pointer-type quartz watches. Cited standards
GB/T2828 Count sampling procedure and sampling table for batch inspection (applicable to inspection of continuous batches) GB/T2829 Count sampling procedure and sampling table for periodic inspection (applicable to inspection of production process stability) GB/T4029 Watches and clocks Shockproof watches
GB/T4031 Watches and clocks Anti-magnetic watches
Analog quartz watches
GB/T 6044
3 Technical requirements
3.1 Main technical indicators
The main technical indicators of the motor are shown in Table 1.
Three-needle meter motor
Number of pole pairs
Step angle, (\)
Nominal working voltage\V
Drive voltage pulse width, ms
Working voltage model\, V
Drive power pulse period, s
Average power consumption current, μA
Output torque + μNm
Center size
<15. 3X17. 8
≤0.8≤1.0
Center size
15. 3X17.8~$20
Motor for two-needle meter
Center diameter>20mm
Qualified and excellent 1st grade
1.20~1.80
Center diameter≤20mm
1.20~1.80
10(12)
≤1. 0≤1.2≤1.4≤1.1≤1.5≤1. 8≤0.6≤0. 5≤0. 4≤0. 3Ms≥4.0
Note: 1) Ms-output torque of the motor on the second axis; M. 234
Standard approved by the Ministry of Light Industry of the People’s Republic of China on 1992-07-06
output torque of the motor on the minute wheel.
Name and standard requirements
Mm\≥20
1993-03-01 implementation
QB/T1537—1992
2) The nominal working voltage and working voltage range refer to the power supply voltage of the motor operation system including the pulse signal drive power supply, 3.2 Working temperature
The motor should be able to work normally in the temperature range of 15~1050℃. 3.3 Moisture resistance
The quartz watch movement equipped with a motor should work normally when it is operated for 24 hours under the environmental conditions of 40±1℃ and relative humidity of 85%~95%.
3.4 ​​Antimagnetic performance
3.4.1 Watch motors without "antimagnetic" mark The quartz watch movement equipped with a motor should be able to work normally when placed in a DC magnetic field of not less than 1200+°°A/m for 3 minutes in any direction without antimagnetic measures. 3.4.2 Watch motors marked with *anti-magnetic For watch motors marked with “anti-magnetic”, the anti-magnetic performance is allowed to meet the requirements of Article 4.2 of GB/T4031 after anti-magnetic measures are taken. The anti-magnetic performance indicators of motors without any anti-magnetic measures shall be agreed upon by the supply and demand parties. 3.5 Anti-shock performance
3.5.1 Watch motors not marked with “anti-shock\” After a quartz watch equipped with a motor is hit by a hammer at a speed of 3.13m/s, the motor should work normally and its parts should not be loose or damaged. 3.5.2 Watch motors marked with “anti-shock” For quartz watches equipped with motors, the anti-shock performance requirements shall comply with the provisions of Chapter 4 of GB4029. 3.6 Vibration resistance
After a quartz watch equipped with a motor is subjected to continuous scanning vibration for 60 minutes with an acceleration of 19.6m/s2, a vibration frequency of 30-120Hz, and a scanning period of 1min, the motor should work normally and its parts should not be loose or damaged. 3.7 Normal insulation resistance
The normal insulation resistance between the coil and the iron core shall not be less than 5MS. 3.8 Quality of parts and components
3.8.1 The motor parts and components shall not be rusted, the coating shall not fall off, and there shall be no obvious scratches on the surface. 3.8.2 There shall be no cracks, rust spots or obvious collapse on the surface of the rotor magnet. 3.8.3 The coil windings shall be arranged neatly, the coil end faces shall be flush and not decoupled; the solder joints shall be smooth. 3.8.4 The motor parts and components shall comply with the requirements specified in the product drawings and technical documents. 4 Test method
4.1 Test conditions
Unless otherwise specified, the test temperature is 23±2℃, and the relative humidity is 55%~65%; a.
b.Unless otherwise specified, the power supply voltage of the motor operation system is the nominal working voltage DC1.55V; c. Except for Article 3.8, the various performance tests of the motor are carried out with the motor installed in a quartz watch movement, and the watch movement transmission gear train is required to operate flexibly (the watch movement to be tested should be a transmission gear train of good quality). 4.2 Test Instruments
The accuracy of the digital voltmeter shall not be less than 0.5 level, and the reading resolution shall not be less than 1mV; the measurement error of the torque tester shall not be greater than 5%; the accuracy of the megohmmeter shall be 1.0 level;
The output impedance of the pulse signal power supply in the motor operation system shall be 300±15: The accuracy of the average power consumption current tester shall not be less than 1%: 235
Qualification Year Car
QB/T1537—1992
f. The accuracy requirements of standard timers, constant temperature and humidity chambers, anti-magnetic testers, anti-vibration testers, and vibration test benches are the same as the requirements for instruments and equipment in Article 4.2 of GB/T6044.
4.3 Average Power Consumption Current
After the motor-equipped watch core is powered on for 3 minutes, use the average power consumption current tester to select the appropriate sampling time and range to measure the average power consumption current of the whole machine and circuit components respectively, and measure three times and calculate the average value. The average power consumption current of the motor is calculated by the following formula: =-H
Where: ——Average power consumption current of the motor, A; Iz——Average power consumption current of the whole machine, μA; I—Average power consumption current of the circuit components, uA. The average power consumption current of the motor can also be directly measured by an equivalent measuring instrument. The test result I should meet the requirements of Article 3.1. 4.4 Output torque
After the watch movement equipped with the motor is powered and runs for 3 minutes, the output torque of the motor on the second axis of the watch movement (for the motor of the two-hand watch, the minute wheel of the watch movement is measured) is measured by a torque tester. The measurement is performed three times and the average value is calculated. This is the output torque Ms (or Mn) of the motor on the second axis (or minute wheel) of the watch movement. The test results should meet the requirements of Article 3.1. 4.5 Working voltage range
After the watch movement equipped with the motor is powered on and running for 3 minutes, the power supply voltage is reduced to stop the motor, and then the power supply voltage is increased to DC1.20V, and the second hand of the watch movement is checked to run for more than 1 minute (for a two-hand watch motor, check that the minute hand of the watch movement runs for more than 5 minutes); then the power supply voltage is gradually increased slowly and the movement of the pointer of the watch movement is checked until the power supply voltage is increased to DC1.80V, and the second hand is checked to run for more than 1 minute (for a two-hand watch motor, check that the minute hand of the watch movement runs for more than 5 minutes). The watch movement should be able to operate normally within the supply voltage range of DC1.20-~1.80V. 4.6 Normal insulation resistance
Use a megohmmeter to measure the normal insulation resistance of the coil to the iron core, and apply a test voltage of 100V for 1 minute; read the insulation resistance value, and the test result should meet the requirements specified in Article 3.7. 4.7 Moisture resistance
The quartz watch equipped with a motor is placed in a constant temperature and humidity chamber at a temperature of 40±1°C and a relative humidity of 85% to 95% for 24 hours. The test results should meet the requirements specified in Article 3.3.
4.8 Antimagnetic performance
4.8.1 Watch motors without "antimagnetic" mark A quartz watch movement equipped with a motor, dial and hands, after running for 3 minutes, without any antimagnetic measures, place the motor coil axially parallel to the external magnetic field, and keep it in a DC magnetic field with a magnetic field strength of 1200+A/m for 3 minutes. Visually check the running status of the watch hands, and use a standard timepiece to compare the difference between the watch movement indication before and after the test and the indication of the standard timepiece. The test results should meet the requirements of Article 3.4.1.
4.8.2 Watch motors with "antimagnetic" mark
Install the watch motor with "antimagnetic" mark in a quartz watch with specified requirements for antimagnetic performance test. The test method shall be implemented in accordance with Chapter 5 of GB/T4031. The test results shall meet the requirements of Article 3.4.2.4.9 Shockproof performance
4.9.1 Watch motors without the "anti-shock" mark Quartz watches equipped with motors shall be placed on the watch anti-shock tester according to the test method specified in Chapter 5 of GB/T4029. After being hit by a hammer with a final speed of 3.13m/s, the operating condition of the quartz watch shall be visually inspected. The test results shall meet the requirements of Article 3.5.1. 4.9.2 Watch motors with the "anti-shock" mark 236
QB/T15371992
Quartz watches equipped with motors shall have their anti-shock performance tests carried out in accordance with Chapter 5 of GB/T4029. The test results shall meet the requirements of Article 3.5.2.
4. 10 Vibration resistance
The quartz watch equipped with a motor is fixed on the vibration test bench in the CH position (dial facing up), 6H position (6 o'clock position of the dial facing up) and 3H position (3 o'clock position of the dial facing up) of the watch in turn. After continuous scanning vibration with an acceleration of 19.6m/s°, a vibration frequency of 30120Hz and a scanning period of 1min for 20min, the operating condition of the quartz watch is visually inspected. The test results shall comply with the requirements specified in Article 3.6.
4.11 Working temperature
The working temperature test of the quartz watch equipped with a motor shall be carried out in accordance with Article 4.3.1 of GB/T6044. The test results shall comply with the requirements specified in Article 3.2.
4.12 Quality of parts and components
4.12.1 The appearance quality of the motor stator and coil components shall be inspected with a 16x optical microscope. The test results shall comply with 3.8.1 and 3.8.3 Article 3.8.2 The appearance quality of the rotor parts shall be inspected with a 25x optical microscope, and the test results shall meet the requirements of Article 3.8.2. 4.12.3 The quality inspection of motor parts and components shall be carried out in accordance with the technical documents of the production unit, and the test results shall meet the requirements of Article 3.8.4.
5 Inspection rules
5.1 Factory inspection
5.1.1 Factory inspection shall be carried out in accordance with the normal inspection of GB/T2828 and the secondary sampling plan of general inspection level II. 5.1.2 The classification of unqualified products, inspection items and qualified quality level (AQL) of factory inspection are shown in Table 2. Table 2
Unqualified classification
Average power consumption current
Output torque
Working voltage range
Quality of parts and components
Inspection items
Applicable clauses
3. 8.1~~ 3.8.3
5.1.3 The sample size code for the batch to be inspected shall be determined according to the batch size and general inspection level of the batch submitted by the manufacturer for inspection in accordance with Table 2 of GB/T2828.
5.1.4 According to the sample size code determined in Article 5.1.3, the sample size of the first sampling and the corresponding Al and R of each test item shall be determined in accordance with Table 7 of GB/T2828, and all the samples shall be inspected according to the items in Table 2 of Article 5.1.2, and the first sampling pass or fail judgment shall be made for each test item in accordance with Article 4.11.2h of GB/T2828. If a certain item needs to be inspected for the second time, the sample size of the second sampling and the corresponding A and Re of these items shall be determined in accordance with Table 7 of GB/T2828, and the samples taken for the second time shall be inspected, and the pass or fail judgment shall be made for these items in accordance with Article 4.11.2b of GB/T2828. After all samples have passed various tests and have been judged as qualified or not, only if all items in Table 2 are qualified can the batch of products be judged as qualified and can be delivered from the factory; otherwise, the batch of products is judged as unqualified and the batch of products should not be delivered from the factory. 5.1.5 The batch judged as qualified shall be accepted as a whole batch, and the batch judged as unqualified shall be returned to the supplier for processing. 5.2 Type inspection
5.2.1 The type inspection adopts the single sampling plan of the discrimination level I of GB/T2829. 5.2.2 The non-conforming categories, inspection items, sample size and non-conforming quality level (RQL) of type inspection are shown in Table 3.237
Standard Technology Network A.FEsCso2comNon-conforming categories
Inspection items
Average power consumption current
Output torque
Anti-magnetic properties
Working voltage range
Working temperature
Moisture resistance
Vibration resistance
Anti-vibration properties
Appearance of parts Quality
Surface quality of rotor magnetic steel
Appearance quality of coil components
Dimensional accuracy of motor parts
QB/T1537—1992
Sample size
Applicable clauses
5.2.3 The method of sampling for type inspection, the method of determining whether the type inspection is qualified or unqualified, the method of disposal after inspection, the method of disposal after sample inspection and the provisions of inspection cycle shall be implemented in accordance with the provisions of Articles 5.2.2 to 5.2.7 of GB/T6046. 6 Marking, packaging, transportation and storage
6.1 Marking and packaging
6.1.1 The motor shall be packaged separately according to parts and components, and the parts and components shall not be damaged by collision or friction with each other. The box packaging or tape packaging shall have good moisture-proof and anti-fouling properties.
6.1.2 The inner packaging shall be accompanied by a product certificate, which includes the motor model, inspector code, inspection date, etc. The outer packaging should have the manufacturer's name, motor model, factory date and quantity, and be printed with "handle with care" and "afraid of moisture" signs or words. 6.2 Transportation and storage
6.2.1 The product should be handled with care during transportation to avoid rain, moisture, extrusion and strong impact. 6.2.2 The product must not be stored together with corrosive substances and away from strong magnetic fields; the storage period is one year. 6.2.3 The storage environment of the product should be kept ventilated and dry, the ambient temperature should be between -10 and +40°C, and the relative humidity should not be higher than 70%. Additional notes:
This standard was proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Clock and Watch Standardization Center. This standard was drafted by Harbin Institute of Technology, the Clock and Watch Industry Science Research Institute of the Ministry of Light Industry, Tianjin Second Watch Factory, and Shanghai Second Watch Factory.
The main drafters of this standard are Guo Qingji, Wu Miaosheng, Wang Xueren, and Zhou Xinian. 238
Standard Control Network eoCm Customer Semi-standard Industry Data Competition Fee Sale3. After the sample size code is determined according to Table 7 of GB/T2828, the sample size of the first sampling and the corresponding Al and R of each test item are determined. All the samples are tested according to the items in Table 2 of Article 5.1.2, and the first sampling is judged to be qualified or not according to Article 4.11.2h of GB/T2828. If a certain item needs to be sampled for the second time, the sample size of the second sampling and the corresponding A and Re of these items are determined according to Table 7 of GB/T2828, and the second sampling samples are tested, and the qualified or not judgment of these items is made according to Article 4.11.2b of GB/T2828. After all the samples pass various tests and the qualified or not judgment is made, only if all the items in Table 2 are qualified, can the batch of products be judged as qualified batch, and the batch of products can be delivered from the factory; otherwise, the batch of products is judged as unqualified batch, and the batch of products should be stopped from leaving the factory. 5.1.5 The qualified batches shall be accepted in their entirety, and the unqualified batches shall be returned to the supplier for processing. 5.2 Type inspection
5.2.1 The type inspection adopts the single sampling plan of the discrimination level I of GB/T2829. 5.2.2 The unqualified classification, inspection items, sample size and unqualified quality level (RQL) of type inspection are shown in Table 3.237
Standard Technology Network A.FEsCso2com Unqualified classification
Inspection items
Average power consumption current
Output torque
Anti-magnetic properties
Working voltage range
Working temperature
Moisture resistance
Vibration resistance
Shockproof performance
Appearance of components Quality
Surface quality of rotor magnetic steel
Appearance quality of coil components
Dimensional accuracy of motor parts
QB/T1537—1992
Sample size
Applicable clauses
5.2.3 The method of sampling for type inspection, the method of determining whether the type inspection is qualified or unqualified, the method of disposal after inspection, the method of disposal after sample inspection and the provisions of inspection cycle shall be implemented in accordance with the provisions of Articles 5.2.2 to 5.2.7 of GB/T6046. 6 Marking, packaging, transportation and storage
6.1 Marking and packaging
6.1.1 The motor shall be packaged separately according to parts and components, and the parts and components shall not be damaged by collision or friction with each other. The box packaging or tape packaging shall have good moisture-proof and anti-fouling properties.
6.1.2 The inner packaging shall be accompanied by a product certificate, which includes the motor model, inspector code, inspection date, etc. The outer packaging should have the manufacturer's name, motor model, factory date and quantity, and be printed with "handle with care" and "afraid of moisture" signs or words. 6.2 Transportation and storage
6.2.1 The product should be handled with care during transportation to avoid rain, moisture, extrusion and strong impact. 6.2.2 The product must not be stored together with corrosive substances and away from strong magnetic fields; the storage period is one year. 6.2.3 The storage environment of the product should be kept ventilated and dry, the ambient temperature should be between -10 and +40°C, and the relative humidity should not be higher than 70%. Additional notes:
This standard was proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Clock and Watch Standardization Center. This standard was drafted by Harbin Institute of Technology, the Clock and Watch Industry Science Research Institute of the Ministry of Light Industry, Tianjin Second Watch Factory, and Shanghai Second Watch Factory.
The main drafters of this standard are Guo Qingji, Wu Miaosheng, Wang Xueren, and Zhou Xinian. 238
Standard Control Network eoCm Customer Semi-standard Industry Data Competition Fee Sale3. After the sample size code is determined according to Table 7 of GB/T2828, the sample size of the first sampling and the corresponding Al and R of each test item are determined. All the samples are tested according to the items in Table 2 of Article 5.1.2, and the first sampling is judged to be qualified or not according to Article 4.11.2h of GB/T2828. If a certain item needs to be sampled for the second time, the sample size of the second sampling and the corresponding A and Re of these items are determined according to Table 7 of GB/T2828, and the second sampling samples are tested, and the qualified or not judgment of these items is made according to Article 4.11.2b of GB/T2828. After all the samples pass various tests and the qualified or not judgment is made, only if all the items in Table 2 are qualified, can the batch of products be judged as qualified batch, and the batch of products can be delivered from the factory; otherwise, the batch of products is judged as unqualified batch, and the batch of products should be stopped from leaving the factory. 5.1.5 The qualified batches shall be accepted in their entirety, and the unqualified batches shall be returned to the supplier for processing. 5.2 Type inspection
5.2.1 The type inspection adopts the single sampling plan of the discrimination level I of GB/T2829. 5.2.2 The unqualified classification, inspection items, sample size and unqualified quality level (RQL) of type inspection are shown in Table 3.237
Standard Technology Network A.FEsCso2com Unqualified classification
Inspection items
Average power consumption current
Output torque
Anti-magnetic properties
Working voltage range
Working temperature
Moisture resistance
Vibration resistancewww.bzxz.net
Shockproof performance
Appearance of components Quality
Surface quality of rotor magnetic steel
Appearance quality of coil components
Dimensional accuracy of motor parts
QB/T1537—1992
Sample size
Applicable clauses
5.2.3 The method of sampling for type inspection, the method of determining whether the type inspection is qualified or unqualified, the method of disposal after inspection, the method of disposal after sample inspection and the provisions of inspection cycle shall be implemented in accordance with the provisions of Articles 5.2.2 to 5.2.7 of GB/T6046. 6 Marking, packaging, transportation and storage
6.1 Marking and packaging
6.1.1 The motor shall be packaged separately according to parts and components, and the parts and components shall not be damaged by collision or friction with each other. The box packaging or tape packaging shall have good moisture-proof and anti-fouling properties.
6.1.2 The inner packaging shall be accompanied by a product certificate, which includes the motor model, inspector code, inspection date, etc. The outer packaging should have the manufacturer's name, motor model, factory date and quantity, and be printed with "handle with care" and "afraid of moisture" signs or words. 6.2 Transportation and storage
6.2.1 The product should be handled with care during transportation to avoid rain, moisture, extrusion and strong impact. 6.2.2 The product must not be stored together with corrosive substances and away from strong magnetic fields; the storage period is one year. 6.2.3 The storage environment of the product should be kept ventilated and dry, the ambient temperature should be between -10 and +40°C, and the relative humidity should not be higher than 70%. Additional notes:
This standard was proposed by the Quality Standards Department of the Ministry of Light Industry. This standard is under the jurisdiction of the National Clock and Watch Standardization Center. This standard was drafted by Harbin Institute of Technology, the Clock and Watch Industry Science Research Institute of the Ministry of Light Industry, Tianjin Second Watch Factory, and Shanghai Second Watch Factory.
The main drafters of this standard are Guo Qingji, Wu Miaosheng, Wang Xueren, and Zhou Xinian. 238
Standard Control Network eoCm Customer Semi-standard Industry Data Competition Fee Sale
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