Stator Device with Magnetic Inference for Flat Motor

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Solution Overview

Problem

Conventional electric flat motors for quick adjustment devices in vehicles face issues with high weight, large installation space, low maximum torque, and susceptibility to damage under high loads, which affects their operational security and efficiency.

Innovation Solution

A stator device for electric flat motors featuring a first and second stator side part with a stiffening device that includes a magnetic inference, a flexible conductor layer, and a controlled gap to accommodate a rotor, enhancing stability and reducing load on conductor tracks, while maintaining a compact design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If conventional electric motors are used for quick adjustment devices, then sufficient power can be provided, but the device requires large installation space and high dead weight

Engineering Contradiction:

Improvepower outputVSAvoiddead weight

Core Design Contradiction:

PowerVSWeight of stationary object

Solution Approach 1:

The motor is divided into two plate-shaped stator halves with a rotor mounted between them, creating a compact segmented structure that reduces overall size and weight while maintaining power output capability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The motor transitions from a conventional cylindrical design to a flat plate-shaped configuration, changing the dimensional arrangement to reduce installation space and dead weight while preserving power delivery

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Power

If conventional electric motors are used for quick adjustment devices, then sufficient power can be provided, but the installation space required is relatively large

Engineering Contradiction:

Improvepower outputVSAvoidinstallation space

Core Design Contradiction:

PowerVSArea of stationary object

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Power

If high currents are used to generate high torque in electric flat motors, then sufficient power can be delivered, but the motor burns out under high loads

Engineering Contradiction:

Improvepower deliveryVSAvoidoperational security

Core Design Contradiction:

PowerVSReliability

Solution Approach 1:

A stiffening device is pre-installed on the stator half before operation to prevent bending under magnetic load, ensuring the motor can handle high currents without structural failure or burning out

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The stiffening device acts as a protective measure in advance, preventing the stator half from bending under the strong magnetic field generated during high-load operation, thus avoiding rotor-stator contact and motor destruction

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Power

If the stator half is subjected to strong magnetic field under high loads, then high power can be delivered, but the stator half bends and the rotor touches the stator, damaging the motor

Engineering Contradiction:

Improvepower deliveryVSAvoidstructural stability

Core Design Contradiction:

PowerVSStrength

Solution Approach 1:

A stiffening device is pre-installed on the stator half before operation to prevent bending under magnetic load, ensuring the motor can handle high currents without structural failure or burning out

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The stiffening device is made of magnetically conductive material that integrates with the stator structure, providing both mechanical reinforcement and magnetic path optimization to prevent bending under strong magnetic fields

Inventive Principle:

Principle #40Composite materials

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 improves the stability and efficiency of electric flat motors by reducing the load on conductor tracks, increasing design life, and minimizing installation space, thereby enhancing operational security and power delivery.

Implementation Method 1

a stiffening device (10) for stiffening the first stator side part (3), wherein the stiffening device (10) is also designed as a magnetic inference for the first stator side part (3)

Methodology Applied

Scientific EffectMagnetic inference: Magnetic Field

Implementation Method 2

an electrically conductive conductor layer (8) arranged on the carrier substrate (7), wherein coil-like conductor tracks (9) are formed in the conductor layer (8)

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11611268B2Stator device, electric flat motor and method for producing a stator device

Publication Date: 2023.03.21 HS PRODS ENG

AI summary

Provided is a stator device for an electric flat motor, including a first stator side part and a second stator side part which can be arranged in such a way that a gap is formed between the first stator side part and the second stator side part to accommodate a rotor, the first stator side part includes an electrically insulating carrier substrate with an electrically conductive conductor layer arranged thereon, and wherein coil-like conductor tracks are formed in the conductor layer. The stator device includes a stiffening device for stiffening the first stator side part, wherein the stiffening device is designed as a magnetic inference for the first stator side part. Furthermore, provided is an electric flat motor for a quick adjustment device for a motor vehicle and a method for producing a stator device for an electric flat motor.