Inductive EV Charging Housing With Insulated Base and Cooling Cover
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Solution Overview
Problem
Conventional electromagnetic induction charging devices for motor vehicles generate waste heat, leading to high surface temperatures that pose a risk of injury.
Innovation Solution
The electromagnetic induction charging device is equipped with a thermally insulated housing and a thermally conductive cover that focuses heat emission to the environment, reducing surface temperatures below 60°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If electromagnetic induction charging device operates for wireless charging, then electrical energy can be transmitted inductively to motor vehicle, but waste heat is generated causing surface temperature to exceed 60°C posing injury risk
Solution Approach 1:
The housing is divided into thermally insulated regions (pot collar and pot base) and a thermally conductive region (cover). This segmentation allows different parts of the housing to have different thermal properties, directing heat away from the exposed outer surface while maintaining structural integrity and functionality.
Solution Approach 2:
Different regions of the housing are assigned different thermal qualities: the pot collar and pot base are thermally insulated to prevent heat transmission to the outer surface, while the cover is made thermally conductive to facilitate heat dissipation. This local differentiation of thermal properties resolves the contradiction between energy transmission and surface temperature control.
2Object-affected harmful factors
If thermal insulation is added to housing to reduce surface temperature, then surface temperature decreases below 60°C improving safety, but heat dissipation from housing interior may be insufficient
Solution Approach 1:
The cover acts as a thermal intermediary between the housing interior and the external environment. It is thermally conductive enough to allow heat to pass through from the interior to the exterior, yet positioned such that it does not cause the outer surface temperature to exceed safe limits. This intermediary function resolves the contradiction between heat dissipation needs and surface temperature control.
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 solution effectively reduces the surface temperature of the charging device, minimizing the risk of injury and ensuring safe operation while maintaining efficient heat dissipation.
Implementation Method 1
the housing has a thermal insulation which is arranged at the pot collar and at the pot base for the thermal insulation of the housing interior with respect to the external environment
Implementation Method 2
An opening of the housing is closed with a thermally conductive cover, for cooling an electromagnetic resonator which is received in the housing interior, so that the cover, together with the housing, delimits the housing interior in a fluid-tight manner
Implementation Method 3
electromagnetic induction charging device for the inductive, in particular contactless, charging of an at least partially electrified motor vehicle with electrical energy
Data Source
AI summary
An electromagnetic induction charging device for an inductive, in particular contactless, charging of an at least partially electrified motor vehicle with electrical energy, with a housing, formed in a pot-like manner, which comprises a pot base and a pot collar, wherein the pot collar facing away from the pot base surrounds a pot opening, and with a thermally conductive cover which covers the pot opening and with an electromagnetic resonator arranged in the housing interior, wherein the housing includes a thermal insulation which is arranged at the pot collar and at the pot base for the thermal insulating of the housing interior with respect to the external environment.