Coil Assembly With Integrated Elastic Support for Heat Dissipation

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Solution Overview

Problem

Conventional solenoid valve coil assemblies in electronic control devices require separate elastic structures for proper alignment and heat dissipation, increasing material costs and assembly complexity while reducing space efficiency.

Innovation Solution

A coil assembly design featuring a bobbin with an elastic part that supports a coil case on one side, allowing for internal elasticity to press the coil case towards the hydraulic control unit, and an integrated heat dissipation structure through an incision and extension part configuration to efficiently transfer heat.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate elastic structure is installed in the housing to press the coil assembly toward the hydraulic control unit, then the coil assembly can be properly aligned and heat dissipation can be improved, but material cost increases, assembly process complexity increases, and space efficiency decreases

Engineering Contradiction:

Improvealignment and heat dissipationVSAvoidassembly process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the elastic structure directly into the coil assembly by forming an elastic part on the bobbin, merging the functions of the bobbin and the elastic structure into a single component. This eliminates the need for separate elastic structures in the housing, reducing assembly complexity while maintaining proper alignment and heat dissipation functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The bobbin is designed with multi-functionality by incorporating the elastic part directly onto it. The bobbin simultaneously serves as the coil support structure and the elastic pressing mechanism, eliminating the need for separate components. This universal design reduces both material cost and assembly process complexity while achieving the required alignment and heat dissipation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Force

If a separate elastic structure is installed in the housing, then the coil assembly can be pressed toward the hydraulic control unit, but material cost increases

Engineering Contradiction:

Improvepressing forceVSAvoidmaterial cost

Core Design Contradiction:

ForceVSQuantity of substance

Solution Approach 1:

The elastic structure is merged with the bobbin by forming the elastic part directly on the bobbin body. This integration eliminates the need for separate elastic components, reducing material cost while maintaining the necessary pressing force to align the coil assembly with the hydraulic control unit.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The bobbin is constructed as a composite structure with an elastic part formed on its surface, combining the structural integrity of the bobbin material with the elastic properties of the elastic part. This composite design provides the necessary pressing force while using materials efficiently, reducing overall material cost compared to separate elastic components.

Inventive Principle:

Principle #40Composite materials

3Force

If a separate elastic structure is installed in the housing, then the coil assembly can be pressed toward the hydraulic control unit, but space efficiency in the housing decreases

Engineering Contradiction:

Improvepressing forceVSAvoidhousing space

Core Design Contradiction:

ForceVSVolume of stationary object

Solution Approach 1:

By merging the elastic structure with the coil assembly itself, the patent eliminates the need for separate elastic components in the housing. This integration reduces the volume occupied in the housing while maintaining the pressing force necessary for proper alignment and contact with the hydraulic control unit.

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

This design eliminates the need for external elastic structures, enhances magnetic force performance, and improves heat dissipation without compromising assembly efficiency, thereby reducing material costs and improving device performance.

Implementation Method 1

an elastic part which is provided on one side of the body in the longitudinal direction

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

it is advantageous in terms of magnetic force performance and heat dissipation that the coil case is in close contact with the hydraulic control unit

Methodology Applied

Scientific EffectHeat conduction: Conduction (thermal)

Data Source

PatentUS20240060517A1Coil assembly and electronic control device comprising the same

Publication Date: 2024.02.22 HL MANDO CORP

AI summary

A coil assembly and an electronic control device including the same are disclosed. The coil assembly according to an exemplary embodiment of the present disclosure includes a bobbin having a cylindrical body around which a coil is wound, an elastic part provided on one side of the body in the longitudinal direction, and a lead pin coupling part extending from the other side of the body in the longitudinal direction to the other side of the longitudinal direction; and a coil case having a cylindrical outer cover surrounding the outer peripheral surface of the body, a first end cover disposed at one end of the outer cover in the longitudinal direction so as to contact the elastic part and a second end cover protruding through the lead pin coupling part and disposed at the other end of the outer cover in the longitudinal direction, wherein the coil case may be pressed on one side of the longitudinal direction by elastically supporting the first end cover by the elastic part.