Adjustable Down-Pressing Mechanism for Multi-Spec Battery Cells

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Solution Overview

Problem

Traditional down-pressing mechanisms for battery cells are typically applicable to only one specification, leading to poor compatibility and increased costs due to the need for mechanism replacement during production line changeovers.

Innovation Solution

A down-pressing mechanism with a pitch adjustment unit and multiple down-pressing members, allowing for adjustable spacings between members through a pitch adjustment drive assembly, including a screw rod and rotation drive member, enabling adaptation to different cell specifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional down-pressing mechanism with fixed spacing between pressing members is used, then the structure is simple, but the adaptability to different battery cell specifications is poor

Engineering Contradiction:
Improveadaptability to different battery cell specificationsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the spacing between pressing members adjustable rather than fixed. The pitch adjustment members can move along the first direction to change the spacing between adjacent down-pressing members, allowing the mechanism to adapt to different battery cell specifications while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements universality by designing a down-pressing mechanism that can handle multiple battery cell specifications through the pitch adjustment assembly. The mechanism serves multiple functions: it can press battery cells of different sizes and adjust its configuration, eliminating the need for multiple dedicated mechanisms for different cell types.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the spacing between down-pressing members is made adjustable, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Improvecompatibility with various battery cell specificationsVSAvoidcomplexity of pitch adjustment assembly
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The pitch adjustment members are designed to move along the first direction to adjust spacing, transforming a static structure into a dynamic one. This allows the mechanism to adapt to different battery cell specifications while keeping the adjustment mechanism relatively simple through guided linear motion.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the spacing parameter between down-pressing members by allowing pitch adjustment members to move along the first direction. This parameter adjustment enables the mechanism to accommodate different battery cell specifications without fundamentally changing the overall structure.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If multiple pitch adjustment members are simultaneously driven, then the adjustment efficiency improves, but the drive assembly complexity increases

Engineering Contradiction:
Improveadjustment efficiencyVSAvoiddrive assembly structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple drive functions into a single screw rod that simultaneously drives multiple pitch adjustment members. By combining the driving action into one component, the system achieves high adjustment efficiency while avoiding the complexity of multiple independent drive assemblies.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The screw rod is divided into multiple threaded portions, each engaging with a corresponding pitch adjustment member. This segmentation allows independent adjustment of each pitch adjustment member while being driven by a single unified mechanism, balancing efficiency and simplicity.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances compatibility and reduces operational inefficiencies and costs by allowing the mechanism to adjust to various battery cell specifications without replacement, improving production efficiency and automation.

Implementation Method 1

The pitch adjustment drive assembly includes a screw rod disposed on the base plate and extending along the first direction and a rotation drive member connected to the screw rod; and an outer peripheral surface of the screw rod is provided with at least one threaded portion, at least one pitch adjustment member is drivingly connected to the threaded portion, and the rotation drive member is configured to drive the screw rod to rotate so as to drive the pitch adjustment member to move along the first direction

Methodology Applied
Scientific EffectScrew mechanism: Screw

Data Source

PatentUS20260074271A1Down-pressing mechanism, pressurizing apparatus, and battery production device
Publication Date: 2026.03.12 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • US20260074271A1 patent drawing
  • US20260074271A1 patent drawing
  • US20260074271A1 patent drawing

AI summary

This application discloses a down-pressing mechanism, a pressurizing apparatus, and a battery production device. The down-pressing mechanism includes a pitch adjustment unit and multiple down-pressing members, where the pitch adjustment unit includes a base plate and multiple pitch adjustment members arranged sequentially along a first direction on the base plate. At least one pitch adjustment member is capable of moving along the first direction. Each down-pressing member is connected to a corresponding pitch adjustment member. The down-pressing members are configured to press a product.