Electric Pump Grounding Path for Charge Dissipation
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Solution Overview
Problem
Existing electric pumps face performance issues due to accumulated charges, which can affect the operation of electronic components and overall pump performance.
Innovation Solution
The electric pump incorporates a conductive conduction member that electrically connects the reference ground layer of the electric control board assembly with the stator iron core, facilitating the discharge of accumulated charges and improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If electric components are provided on the circuit board in the electric pump, then the control function is improved, but accumulated charges affect the performance and reliability of the electronic components
Solution Approach 1:
The patent introduces a conduction member as an intermediary element that provides a dedicated charge dissipation path between the circuit board and stator iron core. This mediator allows accumulated charges to be safely conducted away from electronic components without interfering with the control function, thus resolving the contradiction between automation and reliability.
Solution Approach 2:
The patent extracts the charge accumulation problem from the control system by providing a separate conduction path through the conduction member. This separates the charge dissipation function from the control circuitry, allowing the electronic components to maintain their control function while accumulated charges are removed through the dedicated conduction path to the stator iron core.
2Reliability
If the conduction member electrically connects the reference ground layer with the stator iron core, then accumulated charges are conducted away from the electric control board assembly, but additional structural elements are introduced
Solution Approach 1:
The conduction member serves multiple functions simultaneously: it provides mechanical support, establishes electrical connection, and creates a charge dissipation path. By making this single component multi-functional, the patent improves reliability without proportionally increasing device complexity, as one element performs several critical roles.
Solution Approach 2:
The patent merges the conduction member with either the circuit board assembly or stator assembly, integrating the charge dissipation function into existing structural components. This merging approach allows the conduction member to be part of the overall assembly without requiring completely separate additional parts, thus improving reliability while minimizing increases in device 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
This solution effectively reduces the adverse effects of accumulated charges on the electric control board assembly and the electric pump, enhancing performance and electromagnetic compatibility.
Implementation Method 1
the conduction member electrically connects a reference ground layer of the electric control board assembly with the stator iron core
Data Source
AI summary
Disclosed is an electric pump, comprising a stator assembly, an electric control board assembly, and a conduction member capable of conducting electricity, wherein the stator assembly is electrically connected to the electric control board assembly; the stator assembly comprises a stator core; and the conduction member is electrically connected to a reference ground layer of the electric control board assembly and to the stator core, such that the influence of accumulated charges on the electric control board assembly is reduced, thereby improving the performance of the electric pump.