VENTING AND SEPARATING DEVICE FOR HOUSING OF BATTERY

    公开(公告)号:US20240213615A1

    公开(公告)日:2024-06-27

    申请号:US18597859

    申请日:2024-03-06

    申请人: MANN+HUMMEL GmbH

    摘要: A venting and separating device for a housing of a battery includes a base body including a circumferentially extending rim configured to couple to the housing, an inlet opening configured to be in fluid communication to an interior of the housing, an outlet opening configured to be in fluid communication with an environment, a first separation screen including first screen openings engaging across the inlet opening, and a second separation screen in a venting flow direction fluidically downstream of the first separation screen, the second separation screen including second screen openings engaging across the outlet opening. The base body further includes a pressure relief valve configured to open, when a predetermined excess pressure in the housing is surpassed, a bypass fluid flow path from the interior of the housing to the environment, the bypass fluid flow path bypassing both the first separation screen and the second separation screen.

    PRESSURE EQUALIZATION DEVICE, METHOD FOR PRESSURE EQUALIZATION AND HOUSING

    公开(公告)号:US20230291067A1

    公开(公告)日:2023-09-14

    申请号:US18320985

    申请日:2023-05-21

    申请人: MANN+HUMMEL GmbH

    摘要: A pressure equalization device for a housing has a base body and a closure element with a flow path between them being open in a normal operating state of the pressure equalization device. A flow opening in the flow path is spanned by a membrane. An emergency venting spike projects from the closure element toward the membrane. The pressure equalization device transitions after emergency venting into an emergency operating state in which the closure element gas-tightly closes the base body. A housing with such a pressure equalization device is provided. In a method for pressure equalization with such a pressure equalization device between a housing interior and an environment, gas exchange between interior and environment is performed through the membrane and the flow path between closure element and base body. During emergency venting, the membrane is destroyed by the emergency venting spike. The closure element then closes the base body.