Toy Battery Compartment Spring Contacts for Impact-Stable Power

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Toy figurines with electronic components face instability in power supply due to impacts, leading to potential malfunction or interruption of play experiences, as traditional battery connections are prone to disconnection.

Innovation Solution

A battery compartment with a leaf spring connector system that ensures correct polarity insertion and stable terminal connection, featuring a battery-shoulder receiving part and guide elements for linear movement, ensuring electrical contact only when the battery is correctly inserted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional battery connections are used in toy figurines, then the device complexity is reduced, but the reliability of power supply deteriorates due to disconnection during impacts

Engineering Contradiction:
Improvepower supply stabilityVSAvoidbattery connection structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The battery connection system employs spring connectors that are resilient and capable of dynamic movement. The spring connectors can compress and expand to maintain electrical contact during impacts, transforming the static connection into a dynamic one that adapts to mechanical shocks and vibrations, thereby maintaining power supply reliability without excessive structural complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The battery connection system is divided into separate functional components: spring connectors for electrical contact, a movable battery-shoulder receiving part for mechanical retention, and guide elements for positioning. This segmentation allows each component to be optimized independently for its specific function while working together to provide reliable power supply

Inventive Principle:
Principle #1Segmentation

2Reliability

If a secure battery connection is implemented with spring connectors and movable parts, then the reliability of electrical contact improves, but the device complexity increases

Engineering Contradiction:
Improveelectrical contact stabilityVSAvoidbattery compartment structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The spring connectors serve multiple functions simultaneously: they provide electrical contact through their conductive properties, maintain mechanical pressure on the battery terminals through their resilient nature, and accommodate positional variations through their elastic deformation. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while improving electrical contact stability

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

3Reliability

If the first contact surface is recessed relative to the rim of the battery-shoulder receiving part, then incorrect battery insertion is prevented, but the ease of operation decreases

Engineering Contradiction:
Improvecorrect polarity insertionVSAvoidbattery insertion ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The battery-shoulder receiving part features an asymmetric design where the first contact surface is recessed relative to the rim, creating a geometric constraint that only allows correct polarity insertion. This asymmetric geometry provides mechanical guidance that naturally directs the battery into the correct orientation, reducing insertion errors while maintaining user-friendly operation through intuitive alignment

Inventive Principle:
Principle #4Asymmetry

4Stability of the object's composition

If guide elements are added to allow only linear translational movement, then the stability of battery positioning improves, but the device complexity increases

Engineering Contradiction:
Improvebattery positioning stabilityVSAvoidbattery compartment mechanisms
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The guide elements constrain battery movement by providing geometric constraints in specific dimensions while allowing freedom in others. The guide elements restrict motion to linear translation along the insertion axis by providing physical barriers in lateral directions, achieving stable positioning through dimensional constraint rather than complex mechanical mechanisms

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

The solution provides a stable and secure power supply to electronic components, preventing malfunctions and ensuring uninterrupted play experiences by ensuring correct battery insertion and maintaining electrical contact despite impacts.

Implementation Method 1

a first spring connector in the form of a leaf spring comprising a flat body

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

having a first electric contact surface configured for contacting a positive terminal of the battery

Methodology Applied
Scientific EffectMechanical Force: Force

Data Source

PatentUS12257524B2Toy figurine with a battery compartment
Publication Date: 2025.03.25 LEGO AS
  • US12257524B2 patent drawing
  • US12257524B2 patent drawing
  • US12257524B2 patent drawing

AI summary

A battery compartment for a toy figurine including an elongate cavity configured to receive a battery. The battery compartment has a first spring connector defining a positive contact surface for connection to the battery received in the elongate cavity. The battery compartment also has a battery shoulder mounted to the spring connector. The battery shoulder defines a hole shaped to fit a positive terminal of the battery therethrough. The battery compartment includes a second siring connector defining a negative contact surface for connection to the battery received in the elongate cavity. The second spring connector is configured to elastically maneuver to lengthen the donate cavity.