Embedded lithium battery protection device

The embedded lithium battery protection device addresses inefficiencies in heat dissipation by implementing a self-cleaning filter mechanism and air outlet adjustment, ensuring uniform cooling and preventing dust accumulation, thus improving cooling efficiency and battery life.

CN119253141AActive Publication Date: 2025-01-03SHENZHEN OLIPOWER ENERGY & AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202411755790.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-01-03
Estimated Expiration
2044-12-03

AI Technical Summary

Technical Problem

Existing lithium battery protection devices suffer from poor ventilation performance, leading to inefficient heat dissipation due to dust accumulation on air filters and uneven heating, which affects the battery's service life and cooling efficiency.

Method used

The device incorporates scrapers and a cleaning mechanism with a pulling assembly and reset assembly to self-clean the filter, combined with an air outlet adjustment mechanism using a spiral bimetallic strip to regulate air intake and ensure even cooling, and a dust collection system to prevent secondary pollution.

Benefits of technology

The solution ensures effective heat dissipation by maintaining filter permeability, aligning air inlets with battery sides for uniform cooling, and preventing dust accumulation, thereby enhancing the battery's cooling efficiency and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an embedded lithium battery protection device, and belongs to the technical field of lithium batteries, the embedded lithium battery protection device comprises a battery box, a lithium battery mounted in the middle of the interior of the battery box, a front end cover located at the front end of the battery box and an exhaust fan mounted on the front end cover, and limiting columns are uniformly and vertically fixed on the inner side surface of the battery box; and the end part of the limiting column is attached to the outer side surface of the lithium battery. Scraping plates are slidably mounted at the two ends of the top of the filter screen, the scraping plates are used in cooperation with a traction assembly composed of a blocking plate, a pull rope, a second reset spring, a vertical groove and a drainage opening and a limiting assembly composed of a mounting groove, a compressed spring, an arc-shaped insertion block, a second sliding rod and an arc-shaped insertion groove, and after the top of the filter screen is full of dust, permeability can be reduced, and the dust is prevented from entering the filter screen. At the moment, the interior of the battery box is in a negative pressure state, the blocking plate is subjected to downward pulling force, the limiting state of the blocking plate is relieved, the blocking plate can control the scraper to move horizontally through the pull rope, the surface of the filter screen is self-cleaned, and the heat dissipation effect in the using process is ensured.
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Citation Information

Patent Citations

  • Box type lithium battery heat dissipation equipment and method

    CN118017098A

  • Protective shell with efficient heat dissipation and dust prevention for lithium battery

    CN216488256U

  • A heat dissipation device for a battery protection plate

    CN221058651U

Cited By

  • Lithium battery structure with enhanced heat dissipation performance

    CN120690997A