Temperature-Variable Standoff for Circuit Board Thermal Management

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Solution Overview

Problem

Existing electronics assemblies face inefficiencies and high costs due to the need for expensive, space-consuming, and weighty temperature-controlled systems to manage temperature-sensitive electrical devices, especially in extreme temperature conditions.

Innovation Solution

A temperature-variable standoff structure with an integrated electrical element that can be electrically controlled to adjust temperature, providing compact, efficient, and lightweight temperature management within the assembly by using a support body and electrical connectors to connect with the circuit board's power supply circuit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a temperature-controlled system is used to manage temperature-sensitive electrical devices, then the temperature control effectiveness is improved, but the device size, weight, and manufacturing cost increase

Engineering Contradiction:
Improvetemperature control effectivenessVSAvoidassembly weight
Core Design Contradiction:
TemperatureVSWeight of stationary object

Solution Approach 1:

The patent combines the temperature control function with the existing standoff structure by integrating a heating element into the standoff body. This merging eliminates the need for separate temperature control systems, reducing overall assembly weight while maintaining temperature control effectiveness for sensitive electrical devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The standoff structure is designed to serve multiple functions: mechanical support for the circuit board, electrical connection through integrated connectors, and temperature control through embedded heating elements. This multi-functionality eliminates the need for separate dedicated temperature control components, thereby reducing weight.

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

2Temperature

If a temperature-controlled system is used to manage temperature-sensitive electrical devices, then the temperature control effectiveness is improved, but the assembly space requirement increases

Engineering Contradiction:
Improvetemperature control effectivenessVSAvoidassembly space
Core Design Contradiction:
TemperatureVSArea of stationary object

Solution Approach 1:

The temperature control function is merged into the standoff structure itself, eliminating the need for separate temperature control components. This integration ensures that no additional space is consumed by separate heating systems, as the control function is embedded within the existing structural footprint.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The heating element is nested within the standoff body structure, with the temperature control functionality embedded inside the existing structural components. This nesting approach ensures that the temperature control system occupies no additional assembly space beyond what is already required for the standoff structure itself.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Temperature

If expensive temperature-controlled systems are used, then the temperature control effectiveness is improved, but the manufacturing cost increases

Engineering Contradiction:
Improvetemperature control effectivenessVSAvoidmanufacturing cost
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

By merging the temperature control function with the standoff structure, the patent eliminates the need for separate expensive temperature control systems. The integrated design uses standard heating elements and existing standoff components, significantly reducing manufacturing costs while maintaining effective temperature control.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs inexpensive heating elements and standard electronic components within the standoff structure rather than expensive specialized temperature control systems. This approach uses affordable, readily available components to achieve the required temperature control functionality, thereby reducing manufacturing costs.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

4Productivity

If a compact temperature-control mechanism is integrated within the assembly, then the assembly efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveassembly efficiencyVSAvoidstandoff structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent integrates the temperature control mechanism directly into the standoff structure, combining multiple functions (support, connection, heating) into a single component. This integration improves assembly efficiency by reducing the number of separate parts to be installed, while the modular design keeps the complexity manageable.

Inventive Principle:
Principle #5Merging (Combining)

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 effectively maintains temperature-sensitive device functionality across various environments, reduces manufacturing costs, and enhances assembly efficiency by integrating a compact temperature-control mechanism directly within the electronics assembly.

Implementation Method 1

a temperature-variable electrical element (210) that selectively varies in temperature based on an electrical input thereto

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a support body (212) that supports the temperature-variable electrical element (210) and that is configured to support the circuit board (200) separated at a distance from another component of the electronics assembly

Methodology Applied
Scientific EffectMechanical support: Mechanical Force

Data Source

PatentEP3876688B1Standoff for circuit board having temperature-variable electrical element
Publication Date: 2024.01.31 HONEYWELL INTERNATIONAL INC
  • EP3876688B1 patent drawingFigure 1
  • EP3876688B1 patent drawingFigure 2~3
  • EP3876688B1 patent drawingFigure 4~5

AI summary

A temperature-variable standoff includes a temperature-variable electrical element. The standoff also includes a support body that supports the temperature-variable electrical element and that is configured to support a circuit board separated at a distance from another component of an electronics assembly. The support body is configured to attach to the circuit board and to project away from the circuit board with a first end proximate the circuit board and a second end spaced away from the circuit board. The standoff further includes an electrical connector supported proximate the first end. The electrical connector is configured to electrically connect within an electrical circuit of the circuit board to provide the electrical input to the temperature-variable electrical element for selectively varying the temperature thereof.