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QC/T 626-2019 English PDF (QCT626-2019)

QC/T 626-2019 English PDF (QCT626-2019)

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QC/T 626-2019: Motor vehicles - Window regulator

This standard specifies the terms and definitions, requirements, test methods, inspection rules, signs, packaging, transportation, storage of window regulator for motor vehicles. This standard applies to the manual window regulator AND electric window regulator, which has a nominal voltage of 12 V and 24 V, as used on motor vehicles. Its structure form relates to a rope type window regulator and a gear arm window regulator. The window regulator, in other structural forms, may refer to this standard for implementation.
QC/T 626-2019
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
ICS 43.040.60
T 26
Replacing QC/T 626-2008, QC/T 636-2014
Motor vehicles - Window regulator
ISSUED ON: NOVEMBER 11, 2019
IMPLEMENTED ON: APRIL 01, 2020
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 7
1 Scope ... 9
2 Normative references ... 9
3 Terms and definitions ... 9
4 Requirements ... 10
5 Test method ... 15
6 Inspection rules ... 27
7 Marking, packaging, transportation, storage ... 29
Motor vehicles - Window regulator
1 Scope
This standard specifies the terms and definitions, requirements, test methods, inspection rules, signs, packaging, transportation, storage of window regulator for motor vehicles. This standard applies to the manual window regulator AND electric window regulator, which has a nominal voltage of 12 V and 24 V, as used on motor vehicles. Its structure form relates to a rope type window regulator and a gear arm window regulator. The window regulator, in other structural forms, may refer to this standard for implementation.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this standard.
GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined (IP code) - Classification
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2006, IDT)
GB/T 30512 Requirements for prohibited substances on automobiles
GB 34660 Road vehicles - Requirements and test methods of electromagnetic compatibility
ISO 12103-1 Road vehicles - Test contaminants for filter evaluation - Part 1: Arizona test dust
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Window regulator
The device, which can make the vehicle's window glass rise or fall along the window glass channel, OR stop at any position (hereinafter referred to as regulator). 3.2
Window glass channel
A component, which guide the glass, when the vehicle's window glass is moved up and down (hereinafter referred to as the guide channel).
3.3
Travel speed
The ratio -- of the travel of the vehicle window glass from the upper stop point (lower stop point) to the lower stop point (upper stop point) TO the time to cover such travel.
3.4
Slid-up excess force
When the vehicle's window glass rises, the force, which is obtained, by subtracting the resistance (glass gravity, sliding resistance, etc.) from the raising force. 4 Requirements
4.1 The regulator shall comply with the requirements of this standard. It shall be manufactured, in accordance with the product patterns and design documents, as approved by the provisions.
4.2 The coating & plating and the chemical treatment layer of the metal parts of the regulator shall be uniform AND have no obvious defect.
4.3 The surface of the plastic parts of the regulator shall be flat, no cracks, injection molding defects, or deformation which affects use.
4.4 In the regulator, the content of prohibition material, such as lead, mercury, cadmium, polybrominated biphenyls (PBBs), polybrominated diphenyl ether (PBDES), shall comply with the provisions of GB/T 30512.
4.5 The electric regulator, which has a nominal voltage of 12 V, shall operate smoothly, within the operating voltage range of 9 ~ 16 V. The electric regulator, which has a nominal voltage of 24 V, shall operate smoothly, within the operating voltage range of 18 ~ 32 V.
4.6 Basic performance
The maximum static handle torque of the regulator shall be no more than 1.8 N??m. c) Glass decreasing
When the regulator rises to any position, after the handle torque is removed, the decrease, in the midpoint of the window glass bottom, is not more than 3 mm. d) Movement parallelism
The movement parallelism of the regulator, to any position, shall not be more than 0.3 mm/100 mm (for the gear single arm type and the rope type, it shall not be more than 0.5 mm/100 mm).
4.7 Self-locking
The regulator shall be able to self-lock, in any position, in the window glass stroke. When a 600 N load is applied on the regulator's glass bracket, the decrease of glass bracket shall be not more than 5 mm, AND the regulator shall not be damaged. 4.8 Rotational gap of glass bracket
After the test in 5.8, the rotational gap of glass bracket shall not be more than 20 mm. 4.9 Vibration resistance
After the test in 5.9, each component shall not have unfavorable phenomenon which may affects use, such as cracking, looseness, deformation, etc. The performance shall comply with the provisions of 4.6.
4.10 Corrosion resistance
After the test in 5.10, it allows its performance in 4.6 to deviate for ?? 20%; the main surface of the metal parts has no substrate corrosion.
4.11 Durability
The regulator shall be able to withstand durability test. After the test, the function is functioning; the operation is stable; there is no abnormal phenomenon, such as abnormal sound, tooth slippage, slipping, jamming. The components of the regulator shall have no crack or deformation, which may affect the use.
4.11.1 Durability of electric regulator
After the test in 5.11.1, it allows its performance in 4.6.1 and 4.7 to deviate by ?? 20%, as compared with that before the test.
Number of cycles:
a) Front door: 10000 cycles;
b) Back door: 7000 cycles.
4.11.2 Durability of manual regulator
After the test in 5.11.2, it allows its performance in 4.6.2 and 4.7 to deviate by ?? 20%, as compared with that before the test.
Number of cycles:
a) Front door: 5000 cycles;
b) Back door: 3000 cycles.
4.12 Overload strength
4.12.1 Overload strength of electric regulator
After the test in 5.12.1, its performance shall comply with the provisions of 4.6.1. 4.12.2 Overload strength of manual regulator
After the test in 5.12.2, the part shall have no cracks and permanent deformation; the transmission mechanism shall have no gear out; its performance shall comply with the provisions of 4.6.2.
4.13 Electric regulator other requirements
4.13.1 High-temperature resistance
After the test in 5.13.1, the elevator performance shall comply with the provisions of Table 4.
4.13.2 Low-temperature resistance
After the test in 5.13.2, the performance of the regulator shall comply with the provisions of Table 5.
e) Measurement of startup voltage: Install the regulator on the simulated tooling, to block the glass bracket at the upper stop point, under the test voltage. Adjust the supply voltage, under the unload conditions, run the regulator to drop the glass bracket. Record the startup voltage value, when the bracket is falling. 5.6.2 Test of basic performance of manual regulator
a) Measurement of number of revolutions: Install the regulator on the simulated tooling. Record the number of revolutions of the shaft of the window glass bracket, when it moves from the lower stop point to the upper stop point.
b) Measurement of handle torque: Install the regulator on the simulated tooling. Under the load conditions, rotate the handle in the clockwise or counterclockwise direction, so that the regulator can move freely. In the travel of the regulator, at the 5 measurement positions, which are specified in Table 8, use a torque meter, to measure the stationary torque at each measurement position, respectively. Take the maximum torque, which are obtained from the 5 measurement positions, as the handle torque.
c) Measurement of glass falling: Install the regulator on the simulated tooling, under load conditions, operate the handle, to rise the regulator to each measurement position, which is specified in Table 8. Then quickly release the handle. Take the mid point of the bottom edge of the tested tooling as a reference point, to measure the falling of the reference point of the tested tooling, at each measurement position. Take the maximum falling, which is obtained from the 5 measurement positions, as the falling of window glass.
d) Measurement of movement parallelism: Install the regulator on the simulated tooling. Under load conditions, make a horizontal line segment, through the 5.13.5 Test of insulation dielectric strength
Use the 550 V, 50 Hz sinusoidal AC current, to carry out the withstanding voltage test, between the conductive parts which are not mutually connected and the enclosure, for a duration of 1 min. Record the insulation resistance.
5.13.6 Test of thermal protection
Install the regulator on the simulated tooling. At a load and test voltage conditions, place it for 2 h, respective at -30 ??C, room temperature, 80 ??C. Operate the regulator at this temperature, as specified in Figure 1, until the motor's thermal protection function starts. Respectively record the number of working cycles and recovery time for the first startup of thermal protection, as well as the number of working cycles for the second startup. 5.13.7 Test of electromagnetic compatibility
Carry out the test, according to the test method, which is specified in GB 34660. 5.13.8 Test of automatic retractability
Install the regulator on the door. Run the regulator, to form a window-opening distance of 200 mm, between the lower edge of the rubber strip of the door's upper frame and the upper edge of the window glass. According to the measurement positions, which are specified in Figure 7 and Table 12, extend the test rod, which has a diameter of ??4 mm, through the vehicle window. Operate the regulator, to rise the glass. Use a measuring tool, which has a rigidity of (10 ?? 0.5) N/m, to respectively measure the force of the automatic retraction of the windows, at each test point. Take the maximum value, as the automatic retraction.

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