JY/T 0021-2011 English PDF

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JY/T 0021-2011: (Hand-cranked AC / DC generator)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JY/T 0021-2011	179	Add to Cart	3 days	(Hand-cranked AC / DC generator)	Valid

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Basic data

Standard ID: JY/T 0021-2011 (JY/T0021-2011)
Description (Translated English): (Hand-cranked AC / DC generator)
Sector / Industry: Education Industry Standard (Recommended)
Classification of Chinese Standard: Y51
Word Count Estimation: 7,742
Date of Issue: 2013-07-11
Date of Implementation: 2013-07-11
Older Standard (superseded by this standard): JY 21-1979
Issuing agency(ies): Ministry of Education of the People's Republic of China

JY/T 0021-2011: (Hand-cranked AC / DC generator)

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Hand-cranked AC/DC generator) ICS 03.180 Y 51 Record number 46895-2014 Education Industry Standard of the People's Republic of China Replacing JY 21-1979 Hand-cranked AC/DC generator Manual AC/DC generator 2013–07–11 Release 2013–07–11 Implementation Published by the Ministry of Education of the People's Republic of China JY

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces JY 21-1979. In addition to editorial changes, the main technical requirements of this standard have changed as follows. -Added functional requirements for use as motors; -Increased the requirements of the height of the four feet under the base and the elastic material; -Added equivalent test method when measuring no-load voltage; -Added rectifier regulations (see 4.3 of this standard for details); -Increased the provisions of the belt when rotating; -Removed the technological requirements of the rotor; -The rule of using a bulb as a load when testing the performance of a load has been modified and changed to a fixed resistance. Please note that some elements of this standard may involve patents. The issuer of this standard is not responsible for identifying these patents. This standard was proposed by the National Technical Committee for Standardization of Teaching Instruments (SAC/TC125). This standard is under the jurisdiction of the National Technical Committee for Standardization of Teaching Instruments (SAC/TC125). The main drafting organizations of this standard. Jiangxi Education Technology Equipment Station, Jiangxi Ji'an Tianxing Teaching Instrument Equipment Factory, Jiangxi Ji'an Kewei Instrument Factory, Zhejiang Educational Technology Center. The main drafters of this standard. Zhang Xin, Li Yao, Luo Jixin, and Ren Weide. This standard replaces JY 21-1979. The standard JY 21 was first released in 1979. Hand-cranked AC/DC generator

1 Scope

This standard specifies the nomenclature, requirements, test methods, inspection rules and signs, packaging, transportation, storage, etc. of hand-cranked AC and DC generators. content. This standard applies to teaching AC and DC generators by hand.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. JY 0001-2003 General quality requirements for teaching instruments and equipment products JY 0002-2003 Inspection rules for teaching instruments and equipment products JY 0009-1990 Environmental conditions and test methods of electronic equipment for teaching JY 0026-1991 teaching instrument and teaching equipment product model naming method JY/T 0116 E10 lamp holder for teaching

3 Classification and naming

3.1 Naming rules The model name of the product is JY 0026-1991. 3.2 Nomenclature Hand-cranked AC and DC generators are named. D ― JZFD ― S-8 No-load voltage (8V) Product feature code, manual Product name Pinyin prefix, "AC-DC Power Generation" Product model classification code, special equipment for electromagnetics Model example. D-JZFD-S-8 means special equipment for electromagnetics, AC/DC generator, hand crank, no-load voltage 8V.

4 Requirements

4.1 Structure The basic composition of a hand-cranked AC/DC generator should include a stator, a rotor, a commutator, a current collecting ring, a brush, a lamp holder, a hand-driven mechanism and a bottom board. Should be equipped with 4.8V, 0.3A E10 screw bulb. 4.2 Stator The stator shall consist of permanent magnets and pole shoes. The magnet and pole shoe should use two colors to indicate the N and S magnetic poles, and the N pole should be used in red. S The poles should be blue or white. The sides of the pole shoes should be marked with "N" and "S" symbols, respectively. The pole shoes should be fixed on the floor. 4.3 Rotor The rotor should be composed of a rotating shaft, a two-pole armature core, an armature coil, a rectifier and a current collecting ring. Both the rectifier and the collector ring should be fixed at the rotor On the sub-shaft, there should be a slip ring at both ends and a commutator in the middle. The roundness error of the rectifier and the collector ring should not be greater than 0.1mm. Rectifier of two The plane formed by the gap should be perpendicular to the centerline of the two armature. The distance between the outer ends of the two armature of the rotor should not be less than 60mm. The rectifier should not short the two brushes in any position. 4.4 Brush The brushes should be in elastic contact with the rectifier and the slip ring. The brush should be able to be fixed in contact with the rectifier or current collector Move conveniently. The two brushes should be parallel. When the brush is fixed again after moving, the direction of the brush should not be deflected, and the electrical connection should be possible after the brush is moved. by. 4.5 Lamp holder E10 screw sockets shall be used, and E10 screw sockets shall conform to JY/T 0116. There should be parallel output terminals at both ends of the lamp holder. 4.6 Base plate The size should be not less than 170mm × 280mm, and the thickness should be 10mm ~ 15mm. The four corners should have elastic feet not less than 10mm thick. The floor should be flat, No deformation, no cracking, beautiful surface treatment. 4.7 Armature bracket The armature bracket's shaft hole and shaft should not be inferior to H11/b11, the bearing should be made of brass, and the shaft should be made of steel. 4.8 Hand drive mechanism Should be flexible. When using a belt drive, the belt should not slip or fall off during rotation. When the rotor rotates, it should not collide with or rub against the pole shoes. The transmission ratio between the manual pulley and the rotor pulley should be 8.5. 1 to 9. 1. 4.9 Power generation performance 4.9.1 No-load voltage. When the rotor speed is 1600r/min, the AC and DC voltages at the output should not be less than 8V. 4.9.2 Load voltage. When the rotor speed is 1600r/min, when connected to a 16Ω resistance load, the AC and DC voltages at the output should not be less than 5V. 4.10 Motor performance When used as a motor (without a hand-cranked pulley), the AC and DC starting voltages should not be greater than 4V, and the AC and DC currents should not be large. At 0.4A. 4.11 Appearance and workmanship Should comply with 6.22, 6.25, 6.27, 6.28, 6.29, 6.30, 6.31, 7.1, 7.2, 7.3, 7.4.1, JY 0001-2003 7.4.3, 7.4.4, 7.6, 7.7, 7.8, 7.9, 7.11. 4.12 Environmental test The product shall be able to withstand the temperature, humidity and transport tests in Table 2 of JY 0009-1990 4.3.

5 Test method

5.1 Test no-load voltage Use a direct current motor with a power of not less than 0.4kW, with a pulley, and use a belt to connect with the hand-cranked generator pulley as a power source. Tune Motor speed, when the speed of the hand-cranked AC/DC generator is adjusted to 1600r/min, a magnetoelectric AC voltage with an accuracy of not less than 1.5 Meter and DC voltmeter, which measure AC and DC no-load voltage, should be ≥8V. Measure the speed with a flash speed meter. Or crank the pulley by hand and control the rotation speed to 3r/s, and the power generation performance should meet 4.9. When in dispute, the test method using a DC motor drive and a flash velocimeter shall be used as the arbitration method. 5.2 Test load voltage After the 5.1 test, use one slide rheostat, one AC and DC voltmeter with accuracy not less than 1.5, and one digital multimeter No, no bulbs. Use the sliding rheostat as the load, adjust the sliding rheostat, and use a digital multimeter to measure the load resistance. When the resistance is 16 In Ω, the voltage indicated by the voltmeter should be ≥5V. 5.3 Motor performance Remove the belt and load, and connect the AC power source and DC power source to the lamp post terminals, respectively, and adjust the voltage to 4V. Rotate the rotor by hand to After that, it should be able to continue to rotate. Measure AC and DC using magnetoelectric AC and DC voltmeters and ammeters with accuracy not less than 1.5 The voltage and current shall comply with 4.10. 5.4 The rectifier should not short-circuit the two brushes at any position After the 5.3 test, without a belt and a bulb, use a pointer multimeter to measure the resistance between the two brushes, and turn the rotor by hand. The gap between the brush and the two rectifiers is slowly and repeatedly rotated back and forth more than ten times. Observing the resistance value, there should be no indication of zero once. 5.5 Transmission ratio of pulley Make a mark on one pole of the rotor, attach the belt, and slowly turn the pulley by hand once to observe the number of rotations of the rotor. Should comply with 4.8. 5.6 Lamp holder Press JY/T 0116-2011 Chapter 5. Should comply with 4.5. 5.7 Roundness error of rectifier and current collector Test with a dial indicator. Should not be greater than 0.1mm. 5.8 Shafts and holes The cooperation of the shaft and the hole is measured with a vernier caliper with a graduation value of 0.02mm. The materials of the shaft and the bearing are checked by the senses. Should comply with 4.7. 5.9 Appearance and workmanship Sensory test. Where the belt does not slip or fall off when rotating, the test should be clockwise and counterclockwise at a speed of 3r/s to make the The pulleys each rotate over 100 revolutions. Should comply with 4.11 and 4.8. 5.10 Environmental test Press JY 0009-1990 sections 4.5, 4.6 and 4.9. Should comply with 4.12.

6 Inspection rules

6.1 Inspection classification The inspection of this product shall be divided into factory inspection, type inspection and quality supervision spot inspection. 6.2 Inspection items The inspection items and inspection methods for factory inspection and type inspection shall conform to Table 1. Table 1 Inspection items and inspection methods for factory inspection and type inspection Item No. Inspection Item Standard Provisions Factory Inspection Type Inspection 1 Composition and structure 4.1 ● ● 2 Stator 4.2 ○ ● 3 Shaft 4.3 ● ● 4 Brush 4.4 ● ● 5 Lamp holder 4.5 ○ ● 6 Base plate 4.6 ○ ● 7 Armature bracket 4.7 ● ● 8 Manual drive mechanism 4.8 ○ ● 9 Power generation performance 4.9 ● ● 10 Motor performance 4.10 ○ ● 11 Appearance and craftsmanship 4.11 ● ● 12 Environmental test 4.12-● Note. “●” in the table is the full inspection item, “〇” is the sampling inspection item, and “-” is not the inspection item. 6.3 Lot rules and sampling methods 6.3.1 The factory inspection shall be based on the natural batch of delivery, and the type inspection shall be based on the inventory array. 6.3.2 When leaving the factory, all the inspection items should be inspected first, and then the sampling inspection items should be inspected among the qualified products. 6.3.3 The samples for type inspection shall be taken from the products that passed the factory inspection. 6.3.4 The sampling methods for factory inspection and type inspection shall be in accordance with JY 0002. 6.4 Non-conformance determination 6.4.1 The judgment of sampling inspection shall be in accordance with JY 0002. 6.4.2 The failure criterion of a single sample shall be in accordance with JY 0002. 6.4.3 When inspecting all inspection items, they shall be judged according to the unqualified criterion of a single sample. 6.4.4 Items 1, 3, 4, 7, and 9 in Table 1 are the main performance indicators. 6.5 Review rules 6.5.1 Unqualified products can be submitted for inspection again after rework. 6.5.2 If the cause of the batch failure is a sampling inspection item, the item shall be changed to a full inspection during the re-inspection. 6.6 Quality Supervision Spot Inspection Quality supervision and random inspection shall be in accordance with JY 0002. 7 Marking, packaging, transportation, storage Press chapters 11 and 12 of JY 0001-2003. ......

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