JB/T 5335-1991 Basic technical requirements for DC motors for battery vehicles
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T5335-1991
Basic Technical Requirements for DC Motors for Battery Vehicles Issued on 1991-06-28
Implementation on 1992-07-01 by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Basic Technical Requirements for DC Motors for Battery Vehicles JB/T 5335 - 1991
This standard adopts the International Electrotechnical Commission (IEC) Publication 785 (1984) Rotating Electric Machines for Electric Road Vehicles. 1 Subject Content and Scope of Application
This standard specifies the basic technical requirements for DC motors for battery vehicles (hereinafter referred to as motors). This standard applies to DC motors (traction motors and auxiliary motors) for electric industrial vehicles and electric vehicles powered by main traction batteries.
If used in special environmental conditions, the motors shall also comply with the provisions of the corresponding standards or regulations. 2 Reference standards
GB2828
Batch-by-batch sampling counting sampling procedures and sampling tables (applicable to continuous batch inspection)GB1971
Motor line terminal marking and rotation direction
GB10069.1 Rotating motor noise determination method and limit value Noise engineering determination method
GB10069.3 Rotating motor noise determination method and limit value GB10068.1 Rotating motor vibration determination method and limit value GB10068.2 Rotating motor vibration determination method and limit value GB755
Basic technical requirements for rotating motors
GB1408
GB1993| |tt||JB1093
Environmental conditions for use
Basic environmental test regulations for electrical and electronic products Protection level of motor and low-voltage electrical enclosure
Motor cooling method
Basic test method for traction motor
The motor should be able to operate normally under the following environmental conditions Altitude not exceeding 1200ml
Noise limit
Vibration measurement method
Vibration limit
Test Db: Alternating damp heat test method
The maximum temperature of the surrounding air is 40℃ and the minimum temperature is -25℃; c.
Relative humidity is up to 100%, and condensation forms on the surface of the motor. Note: @
Continuous operation under high ambient temperature and humidity constitutes a special working condition, which shall be agreed upon by the user and the manufacturer if necessary?
When the humidity is too low, it may have an adverse effect on commutation, which shall be agreed upon by the user and the manufacturer if necessary. Excitation, cooling method and protection level
4.1 Excitation method of the motor
Any of series excitation, compound excitation, external excitation and parallel excitation. 4,2 Cooling method of the motor
The motor should be one of the following cooling methods
Natural cooling (IC0041, IC00);
Self-ventilation cooling (IC01).
4.3 The protection level of the motor housing
Not less than IP20 or IP44.
Approved by the Ministry of Machinery and Electronics Industry on June 28, 1991 and implemented on July 1, 1992
Quota classification
JB/T5335-1991
The quota of the motor is divided into continuous quota: 60min, 30min, 15min and 5min quota. The continuous quota is applicable to the motor with self-ventilation cooling.
The rating of the motor is determined by the user or agreed with the manufacturer. After the use and manufacturing agreement, the motor can also use the cycle duty rating. The purpose of the specified rating is to test the performance of the motor on the verification bench, as a basis for product design, manufacturing and acceptance, and as a basis for evaluating the adaptability of the motor to the specified working state and comparing different motors. 5.2 Rated voltage of the motor
The voltage between the lead terminals of the motor when it is rated for operation is called the rated voltage. When powered by a lead-acid battery, the rated voltage corresponding to the nominal voltage of the battery is specified in Table 1.
Nominal battery voltage
Rated motor voltage
When the nominal voltage is above 96V, the specific value is agreed upon by the user and the manufacturer. The values in brackets are not recommended and should be considered together with the parallel values during development. Technical requirements
The maximum and minimum operating voltages of the motor
72(80)www.bzxz.net
67(75)
The maximum and minimum operating voltages of the motor are 1.1 times and 0.75 times the total nominal voltage of the battery elements connected in series, respectively. The motor should be able to operate reliably at this voltage.
If the traction motor is required to act as a generator to charge the battery, the required and permissible maximum operating voltage shall be agreed upon by the manufacturer and the user. 6.2
Maximum current of the motor
The maximum current of the motor is the maximum permissible current of the motor during use (excluding instantaneous current), and the permissible time is
1mln (0.5min for each direction for a dual-direction motor). The ratio of maximum current to rated current is shown in Table 2. Table 2
Motor category
Traction motor
Auxiliary motor
Maximum torque of traction motor
Shunt excitation (external excitation)
, the ratio of its maximum torque to rated torque, when the armature current of the maximum excitation traction motor reaches the maximum value, should not be less than the provisions of Table 3 according to the excitation method.
Shunt excitation and external excitation
When the vehicle has special measures in the circuit to ensure the need for over-torque, and its maximum current is lower than the requirements of 6.2, its maximum current shall be assessed according to the line requirements. Maximum operating speed of the motor
The motor should operate reliably at the maximum operating speed. The maximum operating speed of the traction motor driving the vehicle is the motor speed corresponding to the normal maximum speed of the vehicle (converted according to the rolling circle of the tire).
JB/T5335-1991
The maximum operating speed of the motor of the equipment on the drive vehicle refers to the maximum speed that can be achieved under the normal operating conditions of the motor when the voltage is the highest and the excitation and load are the lowest values that can be produced under the voltage. The maximum operating speed of the motor should be proposed by the user or agreed with the manufacturer. 6.5
Overspeed test
Each motor should be able to withstand an overspeed test of 1.2 times the maximum operating speed for 2 minutes in a hot state. After the test, the motor components should have no mechanical damage and permanent deformation that affects the normal operation of the motor, and the radial runout of the commutator working surface shall not exceed 0.03mm. 6.6
Temperature rise test
6.6.1 Winding and commutator
The motor should be tested under the specified rated operating conditions. The temperature rise limit of the motor components measured on the test bench that is higher than the ambient cold air temperature should comply with the provisions of Table 4 according to the insulation heat resistance grade used. Table 4
Parts of the motor
Armature winding
Stator winding
Commutator
Note,?
Measurement method
Resistance method
Resistance method
Electric thermometer method
105(120)
Commutator adopts corresponding materials and welding process. The limits in brackets can be used. For enclosed motors, the limits in Table 4 can be increased by 10K. Permissible temperature of rolling bearings
105(120)
105(120)
The permissible temperature of rolling bearings (when the ambient temperature does not exceed 40℃) is 95℃. If special bearings are used, it shall be agreed separately. 6.7
Commutation test
The commutation test shall be carried out immediately after the temperature rise test when the motor is hot. For motors running in one direction, the test is carried out in the specified direction of operation. For motors running in two directions, the test should be carried out in both directions. For motors with excitation regulation, the test should also be carried out at each excitation level. The commutation spark of the motor under rated operating conditions and the maximum operating voltage and load current is within the rated and below rated operating characteristic range (including front weak excitation) shall not exceed 1± level. When the load current is greater than the rated current, the motor shall be able to operate normally without additional cleaning of the commutator and without damaging the brushes.
The motor shall be able to withstand the commutation test under the maximum current (6.2). The duration for a motor rotating in one direction is 1 min, and for a motor rotating in two directions is 0.5min, the commutation spark shall not exceed level 2. The commutation test shall be tested and assessed in the entire range mentioned above, but at least the type test shall be conducted for each excitation state at the highest working voltage, rated current, maximum current and maximum working speed and their corresponding working conditions. The inspection test shall be conducted at the rated excitation, rated current, rated (or normal) excitation maximum current and the weakest excitation maximum working speed under the highest working voltage. When the vehicle adopts chopper control speed regulation, there may be a certain impact on the temperature rise and commutation of the traction motor and its operation under DC. Therefore, the vehicle assembly plant and the motor manufacturer shall agree on necessary measures and test requirements. The motor manufacturer determines the difference in temperature rise and commutation of the motor under chopper control and DC through type test. Based on this difference, the motor can be inspected and assessed with DC before leaving the factory.
6.8 Withstand voltage test
Each motor shall be able to withstand the withstand voltage test without insulation breakdown. The value of the motor or winding test voltage shall comply with Table 56.9
Nominal voltage of the power supply battery
48U110
Un>110
Insulation resistance of the motor
JB/T5335-1991
2Un+1000 (minimum 1500)
The insulation resistance of the motor winding to the housing and between the windings in the hot state shall not be less than U./1000MQ2. Starting test
The auxiliary motor shall be able to withstand the starting test without burn marks and permanent deformation of the commutator. The motor shall be subjected to 5 consecutive starting tests at the highest and lowest working voltages (6.1) in the state of normal load according to the normal starting procedure. The time interval between each test is 2 minutes. The temperature rise of each component after the test shall not exceed the limit value. The test can be carried out on a test bench alone or assembled on a vehicle and then carried out as a set with the driven equipment.
Operating characteristics of the motor
The motor shall be plotted for its operating characteristics,
to determine the relationship curve between the speed, efficiency and torque of the motor and the armature current at rated voltage. The plotting of the motor characteristics shall be converted to the values at the reference working temperature of the winding of 150℃. Note:
Products finalized before the entry into force of this standard shall still be based on 115℃. The motor characteristic range shall be from the following current values to the maximum current value. Series-excited motor
Compound-excited motor
Separately-excited and shunt-excited motor
Characteristic tolerance
Speed tolerance
Current corresponding to the highest operating speed.
Current corresponding to the highest operating speed or no-load. Current corresponding to no-load
Under rated voltage, rated current and rated excitation, the tolerance of the motor speed to its rated speed value is shown in Table 6. Table 6
Motor power
Single-machine operation
The difference in speed between the two directions of a motor running in both directions shall not exceed 5% of the average value of the direction adjustment. Efficiency tolerance
The total loss obtained from the motor type test shall not exceed 15% of the specified total loss. And the output power shall not be lower than the rated value. Damp heat test
Multiple machines in parallel operation
After 6 cycles of alternating damp heat test at a high temperature of 40°C and a relative humidity of not less than 85% when cooling according to GB2423.4, the motor shall have the following performance:
The insulation resistance of the motor winding to the casing and between the windings shall not be lower than the value in Table 7. 4
Nominal voltage of power supply battery
48Un110
Un>110
JB/T 5335 - 1991
Insulation resistance
Un/1000(minimum 0.3)
Should be able to withstand 85% of the test voltage specified in Article 6.8 for 1min of withstand voltage test, without breakdown and flashover discharge. The rotating and moving parts of the motor shall not be stuck or affect normal operation, and should be able to continue to operate normally.
Radial runout of shaft extension
The radial runout of the circumference of the midpoint of the motor shaft extension joint during rotation shall not exceed the provisions of Table 8. Table 8
Nominal diameter of shaft
18 and below
>18~30
>30~50
>50~80
Motor noise limit
Allowable radial runout
The noise limit of the motor shall comply with the provisions of GB10069.3. The assessment shall be carried out from the rated speed to the maximum operating speed of the motor. Vibration limit of the motor
The vibration limit of the motor shall comply with the provisions of GB10068.2, and the assessment shall be carried out from the rated speed to the maximum operating speed of the motor. Prevention of radio interference
Since DC motors can be a source of radio frequency interference, when supporting vehicles require anti-interference, specific requirements should be proposed and agreed with the motor manufacturer.
Short-time increased voltage test
The motor should be able to withstand a short-time increased voltage test of 1.3 times the rated voltage for 3 minutes without failure. 6.19 Others
Technical requirements or contents (such as quota, commutation spark level assessment, etc.) involved but not specified in this standard shall comply with the provisions of GB755. 7
Test methods
The test methods for the electrical performance of motors shall comply with the relevant provisions of JB1093. The noise measurement of motors shall comply with the provisions of GB10069.1. The vibration measurement of motors shall comply with the provisions of GB10068.1. Inspection rules
8.1 Test categories
In order to check whether the motors meet the requirements of this standard, the manufacturer shall conduct inspection tests and type tests. Inspection test
Each product shall be subjected to inspection tests to ensure that the motors meet the requirements of this standard both electrically and mechanically. 8.1.2
Type test
The motor shall be subjected to type test in any of the following cases: a.
When the trial production of new products is completed;
JB/T 5335 - 1991
When the design and process changes of old products are sufficient to cause changes in certain characteristics and parameters, type tests of relevant items or all items shall be carried out.
When the inspection test results have an unacceptable deviation from the results of the previous type test; c.
When the production is transferred to another factory or the production is stopped for a long time and restarted; d.
When the product is produced in batches for a long time, regular sampling tests shall be carried out, and the regular sampling test period shall be specified in the specific product technical conditions. The number of motors for type test shall not be less than 2 each time. 8.2
Inspection test items
The inspection test shall include the following items;
Inspection of the motor appearance and its external installation dimensions; Determination of the insulation resistance between the winding and the casing and between the windings; Determination of the DC resistance of the winding in the actual cold state; Temperature rise test:
Determination of speed deviation:
Commutation test;
Short-time voltage increase test
Overspeed test;
Withstand voltage test.
When the motor is produced in batches and stably, the temperature or test of item d is allowed to be sampled and tested according to the sample size in Table 2 and the normal inspection sampling plan (AQL=1IL-Ⅱ) specified in Table 3 of GB2828. The batch is 150 units or less. If it exceeds 150 units, another batch should be made. If the random inspection fails, the batch should be subjected to temperature rise test assessment one by one. For the temperature rise inspection test of continuous rated and periodic rated motors, the manufacturer may control the temperature rise value obtained in the first hour of the continuous rated test in the type test, or conduct a 60-minute heating test according to the S:60-min rating corresponding to the continuous rated or periodic rated winding temperature rise measured in the type test to assess the temperature rise. Type test items
Type test shall carry out the following items:
All items of inspection test items,
Characteristic curve drawing;
Determination of sparkless commutation area of commutated pole motors, starting test of auxiliary motors:
Quality determination;
Wet heat test
Determination of shaft extension runout;
Noise determination
Vibration determination
Determination of maximum torque of traction motors
Determination of inductance of traction motors (when required by users). Marking
The motor should have a nameplate and terminal markings. For motors that rotate in one direction, there should also be a mark indicating the direction of rotation. The nameplate material and the engraving method of the text and the terminal markings should be such that the text will not be easily eroded during the entire service life of the motor. 9.1
The motor nameplate is fixed on a conspicuous position on the base, and its contents shall include: 6
Manufacturer name,
Motor model name;
JB/T 5335 -1991
Factory serial number:
Motor rated data (rated, P, U, I, n); maximum operating speed;
Excitation mode:
Manufacture year and month;
Quality,
Standard (product technical conditions) number;
Enclosure protection grade;
Insulation grade.
If the motor size is small, the nameplate size is limited, and it is allowed to list only the contents of items a, b, c, d, e, f, and g. Line end mark and rotation direction mark
The relationship between the motor line end mark and the rotation direction shall comply with the provisions of GB1971. For motors rotating in one direction, an arrow-shaped sign should be used to indicate the direction of rotation of the motor.
Warranty period and attached documents and spare parts
If the user uses and stores the motor correctly according to the manufacturer's instructions, the manufacturer shall ensure that the motor can operate well within 12 months from the date of trial operation after installation on the vehicle but not more than 10 months from the date of delivery from the manufacturer. If the motor is damaged or cannot work normally due to poor manufacturing within the specified time, the manufacturer shall repair and replace parts or motors for the user free of charge. 10.2 Documents to be supplied with each motor a. Product certificate;
b. Product instructions.
10.3 Spare parts supplied with the motor
Brushes of a motor.
Additional remarks:
This standard was proposed and managed by Xiangtan Traction Electrical Equipment Research Institute. This standard was drafted by Xiangtan Traction Electrical Equipment Research Institute and Changzhou Traction Motor Factory. The main drafter of this standard is Huang Anan.
People's Republic of China
Mechanical Industry Standard
Basic Technical Requirements for DC Motors for Battery Vehicles JB/T5335-1991
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Format 880×1230
Print Sheet X/X
Number of Words XXX, XxXX
Edition X in xX month, 19XX
Printing in X in XX month, 19XX
Number of Prints 1-XXX
Price XXX.XX Yuan
XX-XXX
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