Garden Tool Driving Assembly With Nested Motor Cooling Layout
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Solution Overview
Problem
The traditional string trimmer design results in a large distance between the motor and the air extraction device, leading to a weakened heat dissipation effect.
Innovation Solution
The driving assembly incorporates a connecting base with a receiving hole that houses the driving body, eliminating the connecting block between the motor and the air extraction device, and includes a mounting part and locking component to reduce the distance between the air extraction device and the motor, enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the motor is housed in a connecting base with a hole for the output shaft to pass through, then the assembly structure is simplified, but the distance between the motor and the air extraction device becomes larger and the heat dissipation effect is weakened
Solution Approach 1:
The driving body is nested within the receiving hole of the connecting base, with the output shaft passing through the driving body to connect with the air extraction device. This nesting arrangement eliminates the need for a separate connecting block and minimizes the distance between the motor and air extraction device while maintaining structural simplicity.
Solution Approach 2:
The mounting part is arranged on the side of the driving body close to the output section, and the side of the driving body away from the output section passes through the receiving hole to connect with the bottom of the connecting base. This spatial reconfiguration in multiple dimensions reduces the effective distance between motor and air extraction device.
2Reliability
If the connecting base is used to house the motor, then the motor is protected and positioned, but the distance between the motor and air extraction device increases
Solution Approach 1:
The driving body is nested within the receiving hole of the connecting base, allowing the motor to be protected and positioned while minimizing the distance to the air extraction device through efficient spatial utilization.
Solution Approach 2:
The output shaft is divided into an input section housed in the driving body and an output section that extends outward to connect with the air extraction device. This segmentation allows the motor to remain protected in the connecting base while the air extraction device can be positioned close to the output section.
3Stability of the object's composition
If a connecting block is present between the motor and air extraction device, then the structural connection is stable, but the heat dissipation path is lengthened
Solution Approach 1:
The connecting block is extracted from the structure by directly housing the driving body in the receiving hole of the connecting base and connecting the output shaft to the air extraction device, thereby eliminating the intermediate connecting block that was lengthening the heat dissipation path.
Solution Approach 2:
The functions of the connecting block, motor housing, and air extraction device mounting are merged into the integrated structure of the receiving hole, driving body, and output shaft connection, reducing the overall heat dissipation path length while maintaining structural stability.
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 improves the heat dissipation effect and overall power and performance of the driving assembly by minimizing the distance between the air extraction device and the motor, ensuring efficient heat dissipation and enhanced operational efficiency.
Implementation Method 1
the air extraction device rotates synchronously with the output shaft
Data Source
AI summary
The disclosure provides a driving assembly and a garden tool. The driving assembly includes a connecting base and a driving device. The driving device includes a driving body, a mounting part and an output shaft. The output shaft includes an input section and an output section. The input section is housed in the driving body and extends outward from the driving body to form the output section. The mounting part is arranged on a side of the driving body close to the output section, and a receiving hole is opened on the connecting base. A side of the driving body away from the output section passes through the receiving hole and connects a bottom of the connecting base with the mounting part.