Electric Motor Brake Cooling Duct Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electric motors with braking mechanisms are not designed to be compact due to the need for separate cooling and electrical connection access, leading to increased radial expansion and complexity.
Innovation Solution
An electric motor with an electromagnetically actuable brake featuring cooling ducts that open into a distributor duct within the motor housing, where a pipeline is guided through a bore in the coil body, allowing coolant and electrical connections to be supplied from the non-drive end, reducing radial expansion and enabling a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate cooling and electrical connection access are provided, then cooling and electrical connections can be supplied independently, but radial expansion increases and compactness deteriorates
Solution Approach 1:
The patent combines the cooling duct and electrical connection access into a single integrated structure at the non-drive end. The pipeline for coolant supply is routed through the coil body bore, which also serves as the access point for electrical connections. This merging of functions into one access point eliminates the need for separate openings, thereby reducing radial expansion while maintaining independent supply capabilities.
Solution Approach 2:
The non-drive end structure is designed to serve multiple functions simultaneously: it provides both the coolant supply access and electrical connection access through the same structural elements. The coil body bore serves dual purposes as both a coolant passage and an electrical connection conduit, making the structure universal and multi-functional, thus avoiding additional radial expansion.
2Area of stationary object
If coolant is supplied from the non-drive end through the coil body, then radial expansion is minimized, but the pipeline installation complexity increases
Solution Approach 1:
The pipeline is nested within the existing coil body bore structure. Instead of requiring a separate external mounting, the coolant pipeline is inserted through the bore that already exists in the coil body for electrical connections. This nesting approach allows the pipeline to be housed within the existing structural envelope, minimizing radial expansion while the modular insertion design simplifies installation.
Solution Approach 2:
The pipeline installation is segmented into modular components that can be assembled and inserted as a unit through the coil body bore. The pipeline system is divided into sections that can be independently installed and connected, reducing the overall installation complexity despite the integrated routing through the coil body.
3Stability of the object's composition
If the pipeline is mounted at two axially spaced points, then pipeline stability improves, but the structural complexity increases
Solution Approach 1:
The coil body bore is pre-formed during manufacturing to accommodate the pipeline insertion. This preliminary preparation of the bore structure eliminates the need for additional complex mounting features, as the bore itself serves as the guiding and stabilizing structure. The pipeline is then simply inserted and secured at the two axial points, achieving stability without adding structural complexity.
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 allows for a compact motor design with efficient coolant supply and electrical access from one axial side, minimizing additional structural volume and maintaining a small radial expansion, while ensuring effective cooling and operation of the brake mechanism.
Implementation Method 1
the brake having a coil body, i.e. magnet body, in which an electrically energized coil is recorded
Implementation Method 2
a pipeline opens into the distribution channel, which is guided through a bore in the coil body
Implementation Method 3
the motor has cooling ducts which open into a distributor duct which is arranged in a housing part of the motor
Implementation Method 4
The distribution channel is arranged on the side facing the stator winding
Data Source
Figure 1
Figure 2
AI summary
Disclosed is an electric motor which comprises an electromagnetically actuated brake and cooling ducts that extend into a distribution duct located in a housing part of the motor; the brake includes a coil member, in particular a magnet member, especially in which an energizable coil is accommodated; a pipe which runs through a bore in the coil member extends into the distribution duct.