1. Summary: this laboratory is mainly used for battery safety testing equipment to provide stable and reliable environmental conditions. The main technical conditions meet the requirements of national standard: IEC 60086-1:199 gb8897.4-2001. The system is semi-automatic condition control, automatic measurement and recording, automatic printing test report, and can analyze test results and test data.

        Battery safety testing equipment test site planning general matters:

        2. Responsibilities of Party A:

        Space engineering, air conditioning and lighting engineering of measuring room and machine room

        Ventilation and exhaust pipe engineering and lighting engineering of mechanical room

        Primary side electrical engineering (please connect to the main circuit breaker of the power panel)

        Test object

        Calibration instruments

        Air conditioning equipment

        Control instrumentation

        Measuring instruments

        CPU and software development

        Installation and transportation cost

        Design and commissioning cost

        Power Supply

        3. Acceptance conditions:

        (1) Party B shall provide Party A with the laboratory system drawings:

        a. Layout plan.

        b. Non standard equipment drawing.

        c. Measurement and control system schematic diagram and wiring diagram.

        d. Test system software backup and operation manual.

        e. Laboratory operation, maintenance and repair instructions.

        f. Operation manual of purchased instruments and meters.

        (2) Party B shall provide Party A with spare parts and spare parts list.

        (3) The measurement test results meet the contract requirements:

        a. Laboratory environment

        b. Uniformity and fluctuation of ambient temperature in laboratory

        c. Environmental temperature control in laboratory

        d. The range of temperature and humidity adjustment and the speed of temperature rise and fall in the laboratory

        e. Test range and precision index in test project

        4. Warranty:

        (1) The warranty period is 12 months after delivery.

        (2) During the warranty period, faults are repaired free of charge, and after the warranty period, life-long paid maintenance (only materials and travel expenses are charged). When the equipment fails, it will respond within 8 hours. If necessary, it will be in place within 48 hours.

        (3) During the warranty period, Party A shall bear the repair expenses for the failure caused by the operator's misoperation or force majeure.

        5. Public works (in the charge of Party A)

        (1) Power supply: 3 Φ 5w380v60kva

        (2) Independent ground wire: grounding resistance ≤ 4 Ω

        (3) Water supply: pipe connection diameter Φ 20, water pressure ≥ 0.15Mpa, water quality clean without impurities

        (4) Drainage: pipe connection diameter is Φ 100

        Chapter 1 Summary of the device

        1、 Applicable regulations, specifications and standards

        1. Requirements for laboratories in IEC 600086-1:199 GB 8897.4-2002.

        2. Technical agreement signed by both parties.

        3. If there are no applicable specifications, construction standards or special instructions, both parties shall negotiate with each other.

        2、 Test items

        (1) Thermal shock

        (2) Vibration

        (3) External short circuit

        (4) Heavy impact

        (5) Fall

        (6) Extrusion

        (7) Acupuncture

        3、 Evaluation of test result requirements

        Test item code

        entry name

        requirement

        Intended use inspection

        A

        Vacuum simulation

        No mass loss, no leakage, no discharge, no short circuit, no rupture, no fire

        B

        thermal shock

        No mass loss, no leakage, no discharge, no short circuit, no rupture, no fire

        C

        Vibration

        No mass loss, no leakage, no discharge, no short circuit, no rupture, no fire

        D

        to attack

        No mass loss, no leakage, no discharge, no short circuit, no rupture, no fire

        Reasonably foreseeable use test

        E

        External short circuit

        No overheating, no cracking, no explosion, no fire

        F

        Heavy impact

        No overheating, no explosion, no fire

        G

        extrusion

        No overheating, no explosion, no fire

        H

        Strong discharge

        No explosion, no fire

        I

        Abnormal charging

        No explosion, no fire

        J

        Free fall

        No leakage, no explosion, no fire

        K

        Heat abuse

        No explosion, no fire

        L

        Abnormal installation

        No explosion, no fire

        M

        Over discharge

        No explosion, no fire

        Test a to e with the same battery in turn

        Test f and test G can choose one test, and the manufacturer can choose which test is more suitable for simulating the internal short circuit of battery

        Note: see 6.2 for the determination of test results

        4、 Applicable power supply

        DC / AC 220V50 / 60Hz

        5、 Measurement system accuracy

        So the accuracy of control value should be in the following range

        Voltage: ± 1.0%

        Current: ± 1.0%

        Temperature: ± 2 ℃

        Time: ± 1.0%

        Size: ± 1.0%

        Capacity: ± 1.0%

        Chapter 2: use of equipment

        (1) Thermal shock

        a) Objective: this test is used to evaluate the overall sealing performance of battery under the condition of rapid temperature change.

        b) Test method: the tested battery was placed at (75 ± 2) ℃ for 48h, then at (20 ± 2) ℃ for 6h, and then at room temperature for at least 24h. The longest time of each conversion between different temperatures is 5 min. During the test, appropriate protective measures should be taken to protect the battery from the influence of condensed water during the process of recovery to room temperature after low temperature storage. The thermal shock test was performed with batteries that had been simulated at high altitude

        (2) Vibration

        a) Objective: the test simulates the vibration during transportation, and the test conditions are specified in UN (1995) [14] and other documents.

        b) Test method: the battery under test shall be subjected to simple resonance with amplitude of 0.8 mm (maximum displacement of 1.6 mm). The frequency changes in the range of 10 hz-55 h at the rate of 1 Hz / min, and recovers after 90 min-100 min. the tested battery is tested in three mutually perpendicular axes, and the tested battery with only two symmetrical axes is tested in two perpendicular axes. The battery that has not been discharged or discharged completely shall be tested.

        (3) External short circuit

        a) Objective: to simulate the external short circuit that may occur during battery treatment. The test resistance and temperature UN (1995) [14] are the same as those specified in other documents.

        b) Test method: after reaching temperature equilibrium at (55 ± 2) ℃, the battery shall withstand short circuit with total resistance less than 0.111 of external circuit at the same temperature, and the short circuit shall continue until the temperature of battery shell drops to (55 ± 2)'c, and then continue for more than 1h. The battery that has done vibration test and impact test is used to do the test, and the battery that has done high altitude simulation test and thermal shock test is used to do the test again.

        (4) Heavy impact

        a) Objective: the test simulates the situation of collision and rough handling during transportation, and the test conditions are specified in UN (1995) [14] and other documents.

        b) Test method: put the test sample battery on the plane, place a 15.8 mm diameter rod in the center of the sample, and let the 9.1 kg heavy hammer fall on the sample from 610 mm height. The battery is placed on the impact table, and the 10kg heavy hammer is free to fall from 1m height. Impact the battery fixed in the fixture (the maximum area of the battery should be perpendicular to the table) and the battery that has undergone vibration test is subjected to impact test.

        (5) Fall

        a) Objective: to simulate the sudden drop of the battery under the test conditions according to IEC6 0068-2-32 [6],

        b) Test method: when the battery that has not been discharged falls on the concrete surface from LM height, each tested battery shall drop six times, one on each of the six sides of the prismatic battery, and two on each of the three axes of the circular battery as shown in Figure 9. Then the tested battery shall be placed for 1 h, and the test shall be repeated once with a battery with a pre discharge depth of 25%.

        (6) Extrusion

        a) Objective: this test simulates the situation that the battery is subjected to extrusion (such as compaction of garbage) during the treatment of domestic waste, and the test conditions are the same as those specified in UL 1642 [13].

        b) Test method: the tested battery is squeezed between two planes, and the extrusion force of about 13kn is applied through the vise or the piston diameter of 32mm hydraulic arm. The extrusion continues until the reading of the pressure gauge on the hydraulic device reaches 17 MPa. Once the maximum pressure is reached, the extrusion is released. For cylindrical cells, the long axis of the cell should be parallel to the extrusion plane of the extrusion device; for prismatic cells, the pressure should be applied to one of the two axes perpendicular to its long axis, and then the other axis; for button cells, the plane should be extruded. Each battery was extruded only once.

        (7) Acupuncture

        a) Objective: this test simulates the situation that the battery is collided by sharp objects (such as compacted garbage) during the treatment of household waste, and the test conditions are the same as those specified in UL 1642 [13].

        b) Test method: needling test: put the test battery sample on a fixed plane of the machine. The cylinder passes through the battery at the speed of 10 mm-50 mm / s, and the steel needle is pulled out after the set time. A pneumatic throttle valve can be installed at the air inlet of the cylinder to adjust the size of the gas to change the speed of the cylinder. When the needle reaches the set time in the battery, the cylinder will automatically pull out the needle to complete the test.

        Specific construction schedule

        1. Complete the design, external processing and assembly within 45 days after signing the contract and receiving the payment (not at the customer's place);

        2. 60 days after the contract is signed and the payment is received, the preliminary commissioning shall be completed and the goods shall be delivered to the place where the demander is located; (the subsequent transportation time is about 5 days)

        3. It will take about 10-15 days for the personnel to install after the goods arrive;

        4. Debugging, acceptance and handover within 7-10 days after installation.

        The above is the battery safety testing equipment experimental site planning general matters!