Linear Motor Compressor Elastic Support for Lateral Load
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Solution Overview
Problem
The existing linear motor compressors experience efficiency reduction due to friction caused by lateral loads on the resonant spring, as the end portions of the spring are not fixed, leading to unrestrained loads in the up-down and left-right directions.
Innovation Solution
A linear motor design incorporating a slider driven in a first direction with resonant springs capable of vibrating in that direction, featuring a permanent magnet magnetized perpendicular to the first direction, and a movable bearing supported by an elastic-body support member to manage forces in the up-down and left-right directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the end portions of the resonant spring are not fixed, then the structure is simpler and easier to manufacture, but lateral loads in the up-down and left-right directions act on the slider causing friction and efficiency reduction
Solution Approach 1:
The patent introduces an elastic-body support member as an intermediary component between the resonant spring and the slider. This support member has elastic properties that allow it to absorb and restrain lateral loads in the up-down and left-right directions, preventing these loads from being transmitted to the slider. The elastic-body support member acts as a mediator that maintains the simplicity of the non-fixed spring structure while eliminating the harmful lateral load effects that cause friction and energy loss.
2Device complexity
If the resonant spring is supported without fixed end portions, then the device complexity is reduced, but lateral loads cause friction in the support member and reduce motor efficiency
Solution Approach 1:
The elastic-body support member serves as an intermediary element that is introduced into the system to handle lateral loads. It is positioned between the resonant spring and the slider, providing elastic support that restrains lateral movements. This intermediary component allows the system to maintain low device complexity by avoiding complex fixed-end structures while simultaneously eliminating the harmful friction caused by lateral loads on the slider.
3Reliability
If lateral loads act on the slider, then the support member experiences friction, but adding fixing means to restrain loads increases device complexity
Solution Approach 1:
The elastic-body support member is introduced as an intermediary component that handles lateral load restraint without requiring complex fixing mechanisms. By placing this elastic element between the resonant spring and the slider, the system achieves reliable lateral load restraint through the elastic properties of the support member itself, rather than through complex mechanical fixing means. This approach maintains high reliability while avoiding increased 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 design effectively restrains lateral loads, reducing friction and enhancing the efficiency of the linear motor and compressor by allowing the resonant springs to be supported without fixed end portions, thus preventing load-induced tilting and maintaining reciprocating motion without posture deviation.
Implementation Method 1
an elastic-body support member that connects the resonant spring and the bearing to each other
Implementation Method 2
resonant springs capable of vibrating in the first direction
Implementation Method 3
a resonant spring which is arranged in a radial direction
Implementation Method 4
a permanent magnet which is provided at the slider and is magnetized in a second direction perpendicular to the first direction
Implementation Method 5
a linear motor which generates thrust in a slider by a magnetic force acting between a stator and a magnetic pole provided at each rotator
Data Source
AI summary
An object of the present invention is to provide a linear motor and a compressor which are effective against a non-fixed structure in which end portions of a resonant spring are not fixed and are capable of restraining loads in an up-down direction and a left-right direction which act on a slider. A linear motor includes a slider (2) which is driven in a first direction, a resonance spring (400) which is capable of vibrating in the first direction, and a permanent magnet (210) which is provided at the slider (2) and is magnetized in a second direction perpendicular to the first direction. The linear motor includes a bearing (480) that is movable against both forces of a force in the second direction and a force in a third direction perpendicular to the first direction and the second direction, and an elastic-body support member (450) which connects the resonant spring (400) and the bearing (480) to each other.