Dual-Chamber Electric Pump Cooling for Control Assembly
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Solution Overview
Problem
The accumulation of heat in the electric control assembly of an electric pump affects its performance and reduces its service life due to inadequate heat dissipation.
Innovation Solution
The electric pump is designed with a first and second chamber, where the electric control assembly and a pin are located in the first chamber, allowing a working medium to flow through and exchange heat with the control assembly and pin, enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electric control assembly is placed in a separate housing, then the electrical connection and control functions are improved, but the heat dissipation capability deteriorates due to heat accumulation
Solution Approach 1:
The patent merges the electric control assembly with the pump housing by removing the separate housing structure. The control assembly is directly integrated into the pump housing, allowing the pump housing to serve dual functions: mechanical housing and heat dissipation pathway. This integration enables the working medium to directly cool the control assembly while maintaining electrical connection reliability.
Solution Approach 2:
The pump housing is designed to perform multiple functions: it serves as the mechanical housing for the pump components, the heat dissipation pathway for the motor, and now also as the housing for the electric control assembly. This multi-functionality eliminates the need for a separate control assembly housing while improving heat dissipation.
2Temperature
If additional heat dissipation structures are added to the electric control assembly, then the heat dissipation performance is improved, but the device complexity and production cost increase
Solution Approach 1:
The pump housing automatically serves as the heat dissipation structure for the control assembly through its inherent working medium flow pathways. No additional heat dissipation components (such as heat sinks, fans, or separate cooling channels) are required. The system uses its own working medium and existing structure to provide cooling, thereby reducing device complexity and production costs.
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 improves the heat dissipation of the electric control assembly, thereby prolonging the service life of the electric pump without the need for additional heat dissipation structures, simplifying the pump's structure, and reducing production costs.
Implementation Method 1
the working medium in the first chamber exchanges heat with the control assembly and the pin, which facilitates the heat dissipation of the electric control assembly
Data Source
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AI summary
An electric pump, comprising a first rotor assembly (2), an electronic control assembly and a second rotor assembly (7). The electric pump has a first cavity (10) and a second cavity (20), wherein at least part of the second rotor assembly (7) is located in the first cavity (10), the first rotor assembly (2) is located in the second cavity (20), and the first rotor assembly (2) is in transmission connection with the second rotor assembly (7). The electronic control assembly comprises a control assembly (5) and a pin (31), wherein at least part of the pin (31) extends into the first cavity (10) and is electrically connected to the control assembly (5), and the first cavity (10) is in communication with the second cavity (20). When the electric pump operates, a working medium circulates in the second cavity (20), part of the working medium in the second cavity (20) flows into the first cavity (10), and at least part of the control assembly (5) and at least part of the pin (31) are in contact with the working medium in the first cavity (10). The electric pump has the characteristics of a good heat dissipation effect and reliable operation.