High-temperature air permeability testing system

By designing a high-temperature breathability test system, using heating bodies and precision sensors, the problem that existing systems cannot evaluate the high-temperature breathability performance of the battery separator is solved, and the accurate measurement of the high-temperature breathability performance of the battery separator is achieved, providing important support for battery design and manufacturing.

CN222896051UActive Publication Date: 2025-05-23JINAN SIKE TESTING TECH CO LTD
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Patent Information

Application Number
CN202422119384.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-05-23
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

Existing test systems cannot accurately evaluate the breathable performance of battery separators under high temperature conditions, and cannot meet the needs of battery design and manufacturing for high temperature breathable testing.

Method used

A high-temperature breathability test system is designed, including the upper chamber and the lower chamber. The battery separator to be tested is heated by heating the heating body, and precise measurement is used to ensure that the system operates normally under high temperature conditions.

Benefits of technology

It realizes accurate measurement of the breathable performance of the battery separator under high temperature conditions, provides important data support for battery design and manufacturing, and ensures the safety and reliability of the test system in high temperature environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air permeability testing, in particular to a high-temperature air permeability testing system which comprises an upper testing cavity and a lower testing cavity which are oppositely arranged, the upper testing cavity comprises an air cylinder connecting base, a heat insulation body I, a heating body I and an upper testing cavity body, one end of the heating body I is connected with the upper testing cavity body, and the other end of the heating body I is connected with the heat insulation body I; the cylinder connecting seat is positioned at the other end of the heat insulator I; the test lower cavity comprises a test lower cavity body, a heating body II and a heat insulation body II; the heat insulation body II and the test lower cavity body are respectively positioned at two ends of the heating body II; an air inlet hole is formed in the lower testing cavity, a connector is arranged on the upper testing cavity, and the connector is connected with a pressure sensor and a flow meter through pipelines; and the heating body I and the heating body II are separated from the pressure sensor and the flow meter. According to the utility model, the air permeability of the battery diaphragm under the high temperature condition can be accurately measured, and important data support is provided for battery design and manufacturing.
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Claims

1. A high temperature air permeability testing system, characterized in that: It includes a relatively arranged upper test chamber and a lower test chamber, the upper test chamber includes a cylinder connecting seat, an insulator I, a heating body I and a test upper chamber, one end of the heating body I is connected to the test upper chamber, the other end of the heating body I is connected to the insulator I, and the cylinder connecting seat is located at the other end of the insulator I; the lower test chamber includes a test lower chamber, a heating body II, and an insulator II, the insulator II and the test lower chamber are respectively located at the two ends of the heating body II; the lower test chamber is provided with an air inlet hole, the upper test chamber is provided with a connecting joint, the connecting joint is connected to the pressure sensor and the flow meter through a pipeline; the heating body I and the heating body II are separately arranged from the pressure sensor and the flow meter.

2. The high temperature air permeability testing system according to claim 1, characterized in that: The test lower chamber is located in the upper body, the test upper chamber is located above the test lower chamber, a lower body is arranged below the upper body, and a pressure sensor and a flow meter device are located in the lower body.

3. The high temperature air permeability testing system according to claim 2, characterized in that: A cooling fan is provided at one end of the upper body, and a corresponding opening is provided at the other end of the upper body. An air duct is formed between the cooling fan and the opening, and the test lower chamber is located on the air duct path.

4. The high temperature air permeability testing system according to claim 2, characterized in that: The heating body I of the test upper cavity is a hollow annular heating plate, and the hollow space of the annular heating plate is provided with heat dissipation fins located above the test upper cavity, a ventilation pipeline is provided inside the test upper cavity and extends to the space where the heat dissipation fins are located, an air inlet connected to the ventilation pipeline is provided outside the test upper cavity, and a vent hole is provided above the annular heating plate.

5. The high temperature air permeability testing system according to claim 4, characterized in that: A heat insulation cover is arranged on the outer side of the annular heating plate.

6. The high temperature air permeability testing system according to claim 4, characterized in that: The heat dissipation fin is provided with a plurality of heat dissipation fins arranged at intervals.

7. The high temperature air permeability testing system according to claim 1, characterized in that: A cylinder is arranged above the cylinder connection seat, and the cylinder drives the upper test cavity to move relative to the lower test cavity.

8. The high temperature air permeability testing system according to claim 1, characterized in that: The utility model also comprises an operation screen, which is arranged on the outside of the machine body.