Definitions #
A shipping container with thick walls and special insulation that keeps the temperature inside stable, protecting goods from outside heat or cold during transit.
Technical A container with thermal insulation layers (typically polyurethane foam) that minimizes heat exchange, maintaining a controlled interior temperature for temperature-sensitive cargo, not itself equipped with refrigeration.
Example The insulated container maintained a stable interior temperature of 15°C throughout the trans-Pacific voyage.
Used to ship products like chocolate or medicines that must not get too hot or too cold, but don't necessarily need a powered cooling unit.
Technical A passive refrigerated container (also called a 'reefer box without a generator') that relies on insulation and pre-conditioning to extend the hold time of temperature-sensitive cargo, distinct from active reefer containers.
Example The insulated container maintained a stable interior temperature of 15°C throughout the trans-Pacific voyage.
Etymology #
From the Latin 'insula' (island), via 'insulate' meaning to isolate or protect, combined with 'container' (from the Latin 'continere' to hold together).
Collocations #
- insulated reefer container 保温集装箱但无制冷机组；需靠保温材料和预冷维持温度
- thermal insulation capacity 隔热性能，指箱体抵抗温度波动的能力
- pre-conditioning 装货前对箱内温度预调至所需水平
- temperature-controlled container 广义温控集装箱，涵盖保温箱与冷冻柜
Real Business Examples #
- The insulated container maintained a stable interior temperature of 15°C throughout the trans-Pacific voyage.
- Per the cargo order, the insulated container must be ventilated and set with passive temperature logging devices.
- The shipper requested an insulated container for the chocolate shipment to avoid cold chain failure.
Register & Variants #
- Register: neutral
- BrE/AmE: 全球通用，美式多用 'insulated van' 但物流标准用法为 'insulated container'
Synonyms & Antonyms #
- Synonyms: passive reefer container, temperature-controlled container (in some contexts), thermally insulated container
- Antonyms: refrigerated container (active reefer), open-top container
Common Errors #
- 误以为 insulated container 自带制冷设备 Insulated container 不含压缩机组，不能主动制冷；若货物需恒定冷链，必须用 reefer container 或加装冷板/冰排（gel packs）。
- 把 insulated container 与 isothermal tank 混用 Isothermal tank 用于散装液体并带隔热层，而 insulated container 是普通干货箱带保温层，不能装液体散装或危险品。
Confusable Terms #
- Refrigerated container (Reefer) vs Insulated container
- Reefer has an active refrigeration unit powered by electricity or generator; an insulated container has no such unit and only passively slows temperature change.
Frequently Asked Questions
Insulated container 能替代冷柜吗？?
不能。它只能延长温度变化时间，通常靠预冷和冰排维持 24-72 小时左右；长期运输仍需 reefer container。
运输温敏货物时怎么用 insulated container？?
需提前做 pre-conditioning（预冷至货温），配合温度记录仪、冰排或冷板，并选择较短航程或保温时长足够的航线。