17/06/2024 21:24:12

烟火电池断接开关（结构化电池组）（拆卸和安装）

  • 2023-09-14: Removed correction code and FRT.
  • 2023-07-25: Added step to record replacement pyrotechnic battery disconnect serial number and part number for later entry into SCA.
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警告
尽管此程序已经过验证，但仍是一个草案。可能没有警告和注意事项。请遵守安全要求，处理或靠近高压系统和部件时，请谨慎操作。请将校正修理内容及反馈发送至ServiceDevelopment@teslamotors.com。
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注
The following procedures are not standalone. They conditionally supplement procedures that occur within the Model Y Structural Pack ancillary bay, and require that the ancillary bay cover has already been removed.

拆卸

  1. Remove the pyrotechnic battery disconnect insulators (x2).
  2. Remove and discard the bolts (x2) that attach the pyrotechnic battery disconnect to the ancillary bay.
  3. Lift the pyrotechnic battery disconnect straight up to disconnect from the connector, and then remove the disconnect from the ancillary bay.
  4. Install the pyrotechnic battery disconnect dummy cover.
  5. Return to the procedure that requested the pyrotechnic battery disconnect to be removed.

安装

  1. If a new pyrotechnic battery disconnect is to be installed, record the disconnect serial number and part number for later entry into SCA.
  2. Perform a zero adjust of the Hioki resistance meter in preparation to measure resistances later in this procedure. See 电阻表（零点调节）.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    警告
    执行本程序其余部分的操作时，必须全程佩戴高压绝缘手套和皮革手套保护罩。除非另有说明，否则请勿脱下手套或保护罩。
  3. Remove the pyrotechnic battery disconnect dummy cover.
  4. Use an IPA wipe to clean the HV mating surfaces of the shunt, busbar, and the pyrotechnic battery disconnect, and allow at least 1 minute to fully dry.
  5. Set the multimeter to the "LoZ" (low impedance) mode.
    Informational PurposesAn informational icon, calling your attention
    注
    For Fluke multimeters without "LoZ" mode on the mode selector, see 万用表（LoZ 设置）.
  6. Measure the voltage between the shunt (left) and busbar (right) for at least 10 seconds, so as to balance the voltage across the pyrotechnic battery disconnect mount points.
    Informational PurposesAn informational icon, calling your attention
    注
    The voltage displayed on the multimeter is not as important as balancing the mount points.
  7. While still measuring the voltage, have an assistant position the pyrotechnic battery disconnect into the ancillary bay, align the pins of the connector with the disconnect, and then press the disconnect straight down onto the busbars.
  8. Continue to measure the voltage for another 10 seconds after the pyrotechic battery disconnect has been set onto the busbars.
  9. Install new bolts (x2) to attach the pyrotechnic battery disconnect to the HV battery, and then mark the bolts with a paint pen after they are torqued.
    5 Nm (3.7 lbs-ft) +60 deg
  10. Use the Hioki resistance meter to measure the resistance at the HV joint between the pyrotechnic battery disconnect and the RH busbar.
    Informational PurposesAn informational icon, calling your attention
    注
    The maximum acceptable resistance is 0.060 mΩ (60 μΩ). There is too much resistance in the High Voltage joint. Remove the fastener, clean areas with isopropyl alcohol, install fastener back and test again
  11. Use the Hioki resistance meter to measure the resistance at the HV joint between the newly-installed pyrotechnic battery disconnect and the shunt.
    Informational PurposesAn informational icon, calling your attention
    注
    The maximum acceptable resistance is 0.045 mΩ (45 μΩ). There is too much resistance in the High Voltage joint. Remove the fastener, clean areas with isopropyl alcohol, install fastener back and test again
  12. Install the pyrotechnic battery disconnect insulators (x2).
  13. Return to the procedure that requested the pyrotechnic battery disconnect to be installed.