QC/T 695—2002
This standard is based on the National Automotive Standardization Technical Committee of the standard system, revising the plan, combined with the development of the domestic automobile market needs to develop. The technical content of this standard reference to Japan and other foreign advanced automotive enterprise standards. The preparation of rules according to GB / T 1. 1-2000 and GB / T 1. 2-2002g.
Auto Relay
1. Range
This standard specifies the technical requirements, test methods and inspection rules, marking, packaging, storage and storage of general purpose relays for automobiles. This standard applies to automotive DC circuit mechanical contact electromagnetic relays (including plug-in, small, general-purpose relays and other installation of the relay, hereinafter referred to as the relay).
2. Normative references
The clauses in the following documents become the terms of this standard by reference to this standard. For dated references, all subsequent amendments (excluding corrigenda) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to investigate the possibility of using the most recent versions of these documents . For undated references, the latest edition applies to this standard.
GB / T 2408-1996 Test method for the burning behavior of plastics – Horizontal method and vertical method JB / T 4159-1999 General technical requirements for tropical electrical products QC / T 73 Method for the compilation of product type of electrical equipment QC / T 78-1993 Plug- Relays and flashers Installation size QC / T 413-2002 Automotive electrical equipment basic technical conditions
3.This standard uses the following definitions
3.1 Normally open contacts
Refers to the relay coil is not energized when the contact is in the off state.
3.2 Normally closed contacts
Refers to the relay coil is not energized, the contact in the closed state.
3.3 The suction voltage
Is the voltage across the coil when the relay coil is energized and the voltage rises to the armature suction (normally closed contact open, normally open contact closed).
3.4 Release the voltage
Is the voltage at both ends of the coil when the voltage across the relay coil drops to the point where the armature begins to release (normally open contact is open and the normally closed contact is closed).
4. Requirements
4.1 Type and general requirements
4.1.1 Auto Relays shall conform to the provisions of this standard and shall be manufactured in accordance with the drawings and documents approved by the prescribed procedures.
4-1-2 The model of the relay is compiled according to QC / T 73.
4-1-3 Relay operating voltage should be consistent with the provisions of Table 1.
4.2 Outline and installation dimensions
The shape and installation dimensions of the relays shall be in accordance with QC / T 78-1993 or drawings and documents approved in accordance with the prescribed procedures. If the user has special requirements, according to user requirements.
4-3 Appearance
QC/T 695-2002
Table 1.
standard voltage (V) | working voltage (V) |
12 | 10.8-16 |
24 | 21.6-32 |
Relay signs should be clear, plastic parts should be no cracks, the quality of plastic shell appearance should not be less than JB / T 4159 -1999 in the 2.4.3 secondary requirements. Relay metal parts should have a reliable anti-corrosion layer or the use of corrosion-resistant materials, plating and chemical treatment layer should be uniform, not exposed substrate, no cracks and defects.
4-4 flame retardant properties
The flame retardant properties of plastic parts in the relay shall not be lower than the requirements of “FV – 2” specified in Table 1 of GB / T 2408-1996.
4.5 Mechanical properties
Plug-type small relays, inserts and the base should be combined between the solid, when the blade is compressed by the longitudinal plate should not be depressed deformation. Specific force requirements according to the drawings.
4.6 basic performance 6.1 suction voltage, release voltage
Auto Relays in the absence of load, the suction voltage, the release voltage should be consistent with the provisions of Table 2.
Table 2
standard voltage (V) | operate voltage (V) | release voltage (V) |
12 | ≦8.5 | 1.5-4.8 |
24 | ≦17 | 3-9.6 |
4-6-2 Contact voltage drop
The contact voltage drop of the relay at nominal current through the rated current shall comply with Table 3
Table 3
nominal current (A) | Contact voltage drop |
≦20 | ≦10mV/A |
＞20 | ≦200mV |
4.6.3 Auto relays in special occasions with special requirements, according to the relevant standards.
7 insulation withstand voltage performance
Between the conductive parts of the S are not connected and the conductive parts between the shell should be able to withstand 50 Hz, 550 V sine waveform voltage duration i mm test, the insulation is not breakdown. In a large number of continuous production, the available voltage 660 V, duration of Is the test instead.
Small 8 product temperature performance 4 8.1 low temperature performance
Auto Relays shall be capable of operating in accordance with the specified requirements at the lower operating temperature specified in Table 1 of QC / T413 and shall be subjected to a low temperature test of 8 h at the selected lower limit storage temperature to return to room temperature the relays suction voltage, And the contact voltage drop shall meet 4. 6.1 and 4. 6. 2 Requirements “
High Temperature Resistance
The auto relay shall be capable of operating in accordance with the specified requirements at the upper limit operating temperature specified in Table 1 of QC./T 413 and shall be subjected to a high temperature test of 8 h at the selected upper storage temperature to return to room temperature after the relay suction voltage, Release voltage and contact voltage drop shall meet the requirements of 4.6.1 and 4.6 –
4.8.3 resistance to temperature changes
The temperature change performance test shall be carried out according to the requirements specified in 3.10.3 of QC / T 413. After the test is finished, the relays shall be energized to -184 – voltage, release voltage and contact voltage drop. 4. 6. 2 Requirements.
4-9 product resistance to temperature, humidity cycle performance
According to QC / T413 3.11 provisions of the temperature and humidity cycling performance test, the end of the test to return to room temperature, the relay contact voltage drop should be consistent with the provisions of 4.6. 2.
4-10 Vibration performance
The auto relay shall withstand the sweep vibration test in X, Y and Z directions according to the requirements of “Other parts” in Table 3 of QC / T 413 in Table 3. The relays shall comply with the following requirements: 4. Requirements 6.1 and 4. 6. 2.
4-11 Salt spray resistance performance
Auto Relay in non-working conditions, according to QC / T 413 3.13 requirements, 4Sh salt spray test, the relay after the test of the suction voltage, the release voltage should meet the requirements of 4.6. 1.
4-12 Durability
Auto Relay durability of the work of 100 000 times, can also be determined in accordance with the requirements of users. After the endurance test, the relay pull-in voltage and release voltage shall meet the requirements of 4. 6.1, and the contact voltage drop shall be increased by 50% as compared with Table 3.
5. Test methods
5-1 Test requirements
The auto relay is tested under the following conditions:
1) test power DC power supply with sufficient capacity, the ripple voltage (peak a peak) value of not more than 100 mV, voltmeter, ammeter accuracy of not less than 0.5, the measurement shape and installation dimensions using vernier caliper, the minimum reading is 0.02 irnn;
2) Test voltage: The nominal voltage is 12 V, the test voltage is 14 V ± 0. 1 V; the nominal voltage is 24 V, the test voltage is 28 V ± 0.
3) Ambient temperature: 23; C ± 5 C;
4) relative humidity: 45% to 75%;
5) Atmospheric pressure: 86 kPa ~ 106 kPa “
5-2 Check the external dimensions
Check the shape and installation dimensions of the relay with vernier caliper.
5.3 Visual inspection
Inspection and assessment by visual observation shall be in accordance with 4. 3.
5.4 Flammability test
According to the provisions of Chapter IX of GB / T 2408-1996, shall comply with the provisions of 4_4.
Mechanical performance test
The longitudinal compression force applied to the individual inserts of the relay in a dedicated test equipment shall be in accordance with 4. 5.
5.6 Basic performance test
Test voltage applied to both ends of the relay coil (in the contact loop to allow access to the indicator is not greater than 10 W), the detection of the relay suction voltage, release voltage, contact voltage drop should be In accordance with 4. 6.1, 6.2 6.2 D 5.7 Insulation withstand voltage test
According to QC / T 413 in the method specified in 4. 8. 1 insulation test voltage test should be consistent with the provisions of 4. 7.
5-8 temperature resistance test 5-8-1 low temperature test
First check the relay at the lower operating temperature should be able to start work, and then by QC / T 413 4.10 1 test method specified in the low-temperature storage test, the relay will be placed at room temperature for 1 h, the performance should be consistent with 4 8.1 Provisions.
5.8.2 High temperature test
First check the operating temperature at the upper limit of the relay should be able to start work, and then by QC / T 413 4.10 2 test method specified in the
-185 –
QC / T 695-2002
Line high temperature storage test. After testing the relay at room temperature for 1 h, the performance should be consistent with the provisions of 4. 8. 2.
5.8.3 Temperature change test
According to QC / T 413 in 4.10 3 of the provisions of the method of temperature change test, the relay will be placed at room temperature after 1 h, the performance should be consistent with the provisions of 4. 8.3 D
5.9 Temperature / humidity combined cycle test
According to QC / T 413 in 4. 11 for temperature / humidity combination cycle test, the end of the test to return to room temperature, the relay performance should be consistent with the provisions of 4. 9.
5.10 Vibration test
According to QC / T 413 in 4.12 of the method, after the test relay performance should be consistent with the provisions of 4.10.
5.11 Salt spray test
According to QC / T 413 4.13 for 48 h salt spray test, after the test relay performance should be consistent with the provisions of 4.11.
5.12 Durability test
The relay shall be subjected to the durability test on the special test-bed according to the specified wiring mode and the load performance parameter. The test shall be conducted for 2 s and 1 s (or 1 time) for 3 s after power-off.
6. Inspection rules
6.1 Qualified documents and markings
Each auto relay must be inspected before passing the factory, and should be accompanied by documents to prove the quality of products or markings.
6.2 Type of inspection
Auto Relay testing sub-factory inspection, acceptance inspection and type testing.
6.3 Factory inspection
6.3.1 test items: 4. 2,4,3,4 .6,4.7.
6.3.2 Sampling method: 4. 3,4. 6,4. 7 must be fully tested, on 4.2 allowed to each batch of pumping 0.5%, but not less than three.
6.3.3 Decision rule: All items must be fully qualified. 4.2 of the sampling samples, such as all qualified, then the batch of products as qualified, if a failure, after a full inspection after the repair should be fully qualified, or unqualified.
Acceptance inspection
According to QC / T 413 in the provisions of 5. 4 acceptance.
6.5 Type inspection
6.5.1 For several types of type tests, see 5.5 of the QC / T 413-2002
6.5.2 The samples for type inspection shall be taken from the same batch of products which are qualified in the factory inspection, and the re-inspection and type inspection of the ex-factory inspection items shall be carried out in the order listed in Table 4.
Table 4
NO. | project name | Requirements chapter | Methods of Test Chapter | Number of samples | |||
1-3 | 4-6 | 7-9 | 10-12 | ||||
1 | Shape and installation dimensions | 4.2 | 5.2 | √ | √ | √ | √ |
2 | Exterior | 4.3 | 5.3 | √ | √ | √ | √ |
3 | Basic performance | 4.6 | 5.6 | √ | √ | √ | √ |
4 | Edge pressure performance | 4.7 | 5.7 | √ | √ | √ | √ |
5 | Low temperature performance | 4.8.1 | 5.8.1 | √ | – | – | – |
6 | High temperature performance | 4.8.2 | 5.8.2 | √ | – | – | – |
7 | Temperature change performance | 4.8.3 | 5.8.3 | √ | – | – | – |
8 | Temperature, humidity cycling performance | 4.9 | 5.9 | – | √ | – | – |
9 | Vibration performance | 4.10 | 5.10 | – | – | √ | – |
10 | Salt spray performance | 4.11 | 5.11 | – | √ | – | – |
11 | Durability | 4.12 | 5.12 | – | – | – | √ |
12 | Flame retardant properties | 4.4 | 5.4 | – | – | √ | – |
13 | Mechanical behavior | 4.5 | 5.5 | – | – | – | √ |
6.5.3 Qualified judgment: All types of relay type inspection shall meet the requirements. If one item does not meet the requirements, double the number of samples shall be re-sampled, and the unqualified items shall be re-inspected. If there are still unqualified items, But the failure of the durability test should not be re-extracted, directly judged as unqualified.
7 Marking, packaging, storage and transport
7-1 Auto Relays shall be marked in a prominent position:
- A) the name of the manufacturer or trademark;
- B) relay specifications, model.
7.2 Relay application moisture-proof material packaging, and then loaded into the box, the equipment should be loaded with people. Packaging should be strong to ensure that the normal transport is not damaged. The total weight of each product should not exceed the weight of the technical standard
7.3 The following documents shall be enclosed in the relay box:
- A) product certification;
- B) the product instruction manual;
- C) Preparation, list of accessories.
7.4 relay box should be marked outside:
- A) the name, standard number, model and date of manufacture;
- B) the name of the manufacturer, trademark, full address and the name of the receiving unit, address;
O packing quantity, total weight and overall dimension;
- D) Receiving and dispatching logos, packaging and storage pictorial signs and other signs,
7.5 Relays should be stored in a ventilated, dry, no harmful gases in the warehouse, should not be with chemicals, acid and alkali substances stored together. 7.6 Signage, packaging, transportation and storage of relays may also be agreed between the supplier and the purchaser.