Electric Coolant Pump Partition Plate Heat Dissipation
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Solution Overview
Problem
Conventional electric coolant pumps face issues with heat dissipation and sealing efficiency, leading to potential electrical component failure and reduced production efficiency due to complex assembly procedures.
Innovation Solution
The electric coolant pump design features an integrally formed housing with a sealing sleeve and guide ribs to enhance heat dissipation and sealing, allowing for improved coolant flow and reduced assembly complexity, with a partition plate and base plate configuration that defines separate receiving spaces for the motor and electrical control unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electrical control unit is integrated into the coolant pump housing, then the pump can be electrically controlled to adjust output power according to temperature, but the electrical control unit generates large amounts of heat that accumulate within the pump
Solution Approach 1:
The housing is divided into a first housing portion containing the motor and impeller, and a second housing portion containing the electrical control unit, with a partition plate separating them. This segmentation isolates the heat-generating electrical control unit from the motor compartment while maintaining functional integration.
Solution Approach 2:
A heat dissipation structure is introduced as an intermediary between the electrical control unit and the coolant flow. This structure includes heat dissipation fins and coolant flow channels that facilitate thermal transfer from the electrical control unit to the coolant without direct contact between components.
2Reliability
If the housing and cover are sealed to avoid liquid leakage, then sealing reliability is improved, but assembly procedures become complex and production efficiency is limited
Solution Approach 1:
The housing is designed as an integrated structure where the first and second housing portions are formed as one piece with the partition plate, eliminating the need for separate sealing assemblies between housing sections. This merging reduces the number of sealing interfaces while maintaining liquid-tight sealing.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it contains the motor and electrical control unit, provides sealing to prevent liquid leakage, and incorporates heat dissipation features. This multi-functionality reduces the need for additional separate components and simplifies assembly.
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 effectively dissipates heat generated by the electrical control unit, maintains a low temperature state, and enhances sealing efficiency, reducing the risk of component failure and improving production efficiency by simplifying assembly.
Implementation Method 1
The electrical control unit controls the intensity and direction of the electrical current flowing through the stator windings, making the stator windings generate a variable magnetic field. The variable magnetic field interacts with the magnet of the rotor to drive the rotor and hence the impeller connected to the rotor to rotate
Implementation Method 2
a coolant pump drives a coolant, which makes the coolant flow over cylinders of the internal combustion engine to take away heat generated by the internal combustion engine
Data Source
AI summary
An electric coolant pump includes an outer housing, a motor, an impeller, and an electrical control unit. The outer housing includes a first housing portion, a second housing portion, and a partition plate integrally formed. The partition plate is disposed between the first housing portion and the second housing portion. The motor is received in the first housing portion. The motor includes a sealing sleeve, a stator disposed on an inner wall surface of the outer housing, and a rotor rotatably received in the sealing sleeve. The impeller is driven by the rotor of the motor to drive a coolant to flow. The electrical control unit is received in the second housing portion and electrically connected to the motor. The electrical control unit and the impeller are respectively located at two opposite ends of the motor.