Pressure equalization device
CN113540680BActive Publication Date: 2026-08-28ILLINOIS TOOL WORKS INC
Patent Information
- Application Number
- CN202010236508.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-03-30
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2040-03-30
AI Technical Summary
Technical Problem
如果电池包内部的气体没有及时向外排出，则会影响电池的正常使用
Benefits of technology
[0014]当电池包在储存或使用的过程中出现内部气压减小的情况时，外界环境的空气中夹带的水蒸气容易通过压力平衡装置进入到电池包内部。本申请在压力平衡装置的内部设置有干燥剂，利用干燥剂的干燥性能吸收进入到电池包内侧的水蒸气，从而防止因内部水汽的存在而影响电池包的正常运行。
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN113540680B_ABST
Abstract
A pressure equalization device includes a mounting base, a gas permeable membrane, and a desiccant member. The mounting base includes a mounting base housing and a support portion coupled to the mounting base housing. An interior of the mounting base housing forms a fluid passageway in which the support portion is disposed, the fluid passageway being configured to fluidly couple an interior of a component to be pressure relieved to an ambient environment. The gas permeable membrane covers the fluid passageway. The desiccant member is disposed on the support portion between the support portion and the gas permeable membrane, the desiccant member being configured to absorb moisture entering the fluid passageway. The present application provides a desiccant member disposed inside the gas permeable membrane of the pressure equalization device, which absorbs moisture vapor entering the interior of the pressure equalization device, thereby preventing moisture vapor from the ambient environment from entering the interior of the component to be pressure relieved.
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Citation Information
Patent Citations
Pressure compensation element having a diaphragm, housing, battery cell module and motor vehicle
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Battery pack filtering device and method
CN106257736A