Temple Motor Thermal Separation for Compact Pump Drive Electronics
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Solution Overview
Problem
Existing electromagnetic rotary drives with temple motor designs face challenges in compactness and heat management, leading to overheating issues due to the spatial separation of motor and control units, which increases complexity, costs, and reduces the service life of electronic components.
Innovation Solution
The integration of a thermal separating element between the motor and control units in a temple motor design, allowing for a compact setup where the control unit can be placed adjacent to the motor unit, reducing direct heat flow and enhancing heat dissipation through a cooling line or passive insulation, thus preventing overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control unit is spatially separated from the motor unit, then the electronic components are protected from heat, but the device complexity and costs increase
Solution Approach 1:
The control unit is integrated into the motor housing, combining the motor unit and control unit into a single compact structure. This eliminates the need for separate spatial separation while still allowing thermal management through the thermal separator placed between the motor and control components within the same housing.
2Device complexity
If the control unit is placed adjacent to the motor unit, then the device becomes more compact, but heat management becomes difficult and electronic components overheat
Solution Approach 1:
The motor housing is segmented into distinct regions: a motor unit region and a control unit region, separated by a thermal separator. This segmentation allows the control unit to be physically adjacent to the motor unit for compactness while maintaining thermal separation to prevent overheating of electronic components.
Solution Approach 2:
A thermal separator is introduced as an intermediary element between the motor and control units. This thermal separator acts as a mediator that allows close proximity for compact design while blocking direct heat transfer to the control unit, thus managing temperature effectively.
3Temperature
If spatial separation is used to manage heat, then overheating is prevented, but costs and device complexity increase
Solution Approach 1:
The control unit is integrated into the motor housing as a single manufactured assembly, eliminating the need for separate housings and complex assembly processes. The thermal separator is incorporated as an internal component during manufacturing, reducing overall production costs while maintaining effective heat management.
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 configuration results in a more compact, cost-effective, and reliable design with reduced susceptibility to interference, improved heat management, and extended service life of electronic components, particularly suitable for high-power applications.
Implementation Method 1
a thermal separator is arranged between the motor unit and the control unit, which element rests against the motor unit and the control unit and reduces direct heat flow from the motor unit into the control unit
Implementation Method 2
The stator's electrical windings can be used to generate a magnetic rotating field which, on the one hand, exerts a torque on the rotor, causing it to rotate around a desired axis of rotation
Implementation Method 3
exerts an arbitrarily adjustable transverse force on the rotor, so that its radial position can be actively controlled or regulated
Implementation Method 4
the rotor is passively magnetic, meaning it cannot be controlled, and is supported or stabilized by reluctance forces
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
An electromagnetic rotary drive is proposed, designed as a temple motor, comprising a motor unit (30) and a control unit (40), wherein the motor unit (30) is arranged in a motor housing (20) which has a recess (210) for receiving an annular or disk-shaped magnetically active core (31) of a rotor (3), wherein the motor unit (30) comprises a stator (2) designed as a bearing and drive stator, with which the rotor (3) can be magnetically driven without contact about a desired axis of rotation in the operating state, which defines an axial direction (A), and with which the rotor (3) can be magnetically supported without contact with respect to the stator (2), wherein the rotor (3) is actively magnetically supported in a radial plane perpendicular to the axial direction (A), wherein the stator (2) has a plurality of coil cores (25), each of which comprises a longitudinal leg (26),which extends from a first end in the axial direction (A) to a second end, and a transverse leg (27) which is arranged at the second end of the longitudinal leg (26) and in the radial plane, and which extends from the longitudinal leg (26) in a radial direction, wherein the coil cores (25) are arranged circumferentially around the recess (210), and wherein at least one concentrated winding (61) is provided on each longitudinal leg (26), which surrounds the respective longitudinal leg (26), and wherein the control unit (40) is configured for controlling and supplying the windings (61) with electrical energy. With respect to the axial direction (A), a thermal separating element (8a; 8b) is arranged between the motor unit (30) and the control unit (40), which bears against the motor unit (30) and the control unit (40).and which reduces a direct heat flow from the motor unit (30) to the control unit (40). The invention further proposes a centrifugal pump with such a rotary drive (1).