Helmet Energy Indicator Socket Stability

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Solution Overview

Problem

Existing electrical energy supply indicators for helmets suffer from rotational instability, leading to potential short-circuits and disconnections when the male terminal pin rotates, causing the light-emitting diode to malfunction and reducing the service life of the indicator.

Innovation Solution

The solution involves a storage chamber with a compartment plate and a female terminal socket featuring an article locking member with four trapezoidal faces, which is securely sandwiched between the compartment plate and the casing interior, combined with a slant-faced extrusion block on the cover plate to prevent undesirable movement of the female terminal socket, ensuring stability even during rotational disturbances from the male terminal pin.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the RCA male terminal pin is allowed to rotate for positioning, then the terminal connection is easier to align, but the RCA female terminal socket moves rotationally causing short-circuits and disconnections

Engineering Contradiction:
Improveterminal alignmentVSAvoidelectrical connection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The terminal assembly is segmented into two independent rotational components: the male terminal pin can rotate for alignment while the female terminal socket remains fixed through the positioning groove mechanism. This segmentation allows each component to perform its specific function without interfering with the other's stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The positioning groove acts as an intermediary mechanism between the male terminal pin and the female terminal socket. It mediates the rotational movement by allowing the pin to rotate within the groove while preventing the socket from moving, thus enabling alignment without compromising connection stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the terminal socket is fixed in position, then connection stability is improved, but the terminal cannot accommodate rotational adjustment

Engineering Contradiction:
Improveconnection stabilityVSAvoidrotational adjustment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system separates the adjustment function (male pin with rotational capability) from the connection function (female socket fixed in position). This segmentation allows the socket to provide stable connection while the pin provides the necessary rotational adjustment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of making the female socket rotatable for adjustment, the invention inverts the approach by making the male pin rotatable while keeping the female socket fixed. This inversion achieves the same alignment goal while maintaining connection stability.

Inventive Principle:
Principle #13The other way round (Inversion)

3Manufacturing precision

If multiple rounds of rotation are allowed during connection, then alignment precision is improved, but cable lines and welding joints break due to incessant rotation

Engineering Contradiction:
Improvealignment precisionVSAvoidcable line integrity
Core Design Contradiction:
Manufacturing precisionVSStrength

Solution Approach 1:

The positioning groove serves as a mediator that allows the male terminal pin to rotate multiple times for precise alignment while the female terminal socket remains stationary. This intermediary structure protects the cable lines and welding joints from the harmful effects of incessant rotation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The positioning groove provides a cushioning effect by absorbing and guiding the rotational movements within a controlled path, preventing excessive stress from being transmitted to the cable lines and welding joints during the alignment process.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

This design maintains the indicator's functionality by preventing disconnection and breakage, ensuring accurate display of electrical energy supply to the helmet's visor heating mesh, even under multiple rotational disturbances, thereby extending the service life and reliability of the indicator.

Implementation Method 1

a light-emitting diode 15, wherein the RCA female terminal socket 13 has a pin receiving terminal 131 and screw thread 132

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Data Source

PatentUS8585256B2Electrical energy supply indicator for a helmet
Publication Date: 2013.11.19 CHEN TSAN JEE
  • US8585256B2 patent drawing
  • US8585256B2 patent drawing
  • US8585256B2 patent drawing

AI summary

An electrical energy supply indicator for a helmet is disclosed to employ a casing having a storage chamber for housing an electrical resistor, a light-emitting diode (LED), a cover plate, a female terminal socket; wherewith the storage chamber has a compartment plate, the female terminal socket has an article locking member, a pin receiving member having four trapezoidal faces, an anode and a cathode for connecting with the resistor and LED. The locking member is immobilized between the compartment plate and an interior surface, the receiving member passes through the receiving channel to connect externally with a male terminal pin. The LED operates to determine if attached electrical circuit is powered. A slant-faced extrusion block is on the underside of the cover plate to superimpose onto the locking member such that the locking member can be more secured inside the casing, thereby preventing undesirable movement of the female terminal socket.