Non-Rotating DC Generator Structure Without a Commutator
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Solution Overview
Problem
Conventional DC generators require rotational driving of an armature or field magnet, leading to increased manufacturing costs, mechanical complexity, and reduced power generation efficiency due to friction losses.
Innovation Solution
A non-rotating type DC generator design that eliminates the need for rotational driving by using a round bar-shaped core member, a field magnet with a wound electric line and hollow portion, an armature with a wound electric line and hollow portion, and insulating plates, with the field magnet current supplied based on alternating current from an AC power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If rotational driving of armature or field magnet is used, then DC current can be generated through commutator, but structural complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts and removes the commutator and commutator elements from the generator structure. By using a non-rotating armature design where the armature remains stationary and only the field magnet rotates, the commutator is no longer needed for current collection, thereby simplifying the structure and reducing manufacturing cost
Solution Approach 2:
The patent replaces the mechanical commutator-based current rectification system with an alternative approach where the rotating field magnet induces current in the stationary armature windings. This substitution eliminates the need for sliding contacts and mechanical commutation, reducing structural complexity
2Loss of energy
If rotational driving of armature or field magnet is used, then DC current can be generated, but energy loss due to friction increases
Solution Approach 1:
The patent replaces the conventional rotating armature system with a non-rotating armature design. The armature remains stationary while the field magnet rotates, eliminating friction between the armature and its bearings. This substitution significantly reduces mechanical friction loss and improves power generation efficiency
Solution Approach 2:
The patent inverts the conventional generator design by making the field magnet rotate instead of the armature. In traditional generators, the armature rotates to cut magnetic flux lines; in this invention, the stationary armature windings cut the magnetic flux lines generated by the rotating field magnet, thereby eliminating armature friction losses
3Weight of stationary object
If commutator is added to generate DC current, then DC output is achieved, but weight and structure worsen
Solution Approach 1:
The patent extracts and removes the commutator and commutator elements from the generator structure. By using a non-rotating armature design where the armature remains stationary and only the field magnet rotates, the commutator is no longer needed for current collection, thereby simplifying the structure and reducing weight
Solution Approach 2:
The patent uses a simplified current collection method that copies the essential function of the commutator (converting AC to DC output) without requiring the complex mechanical commutator structure. The stationary armature windings directly induce DC current through the rotating field magnet, eliminating the need for heavy sliding contacts and commutator segments
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 simplifies the generator structure, reduces weight, and minimizes energy loss due to friction, resulting in improved power generation efficiency and the ability to generate DC power without a commutator.
Implementation Method 1
a field magnet in which an electric line is wound and a first hollow portion is formed in the central part, the field magnet receiving the field magnet current
Implementation Method 2
an armature in which an electric line is wound and a second hollow portion is formed in the central part, the armature disposed on the outside of the core member through the second hollow portion
Data Source
AI summary
The present invention relates to a non-rotating direct current electric generator capable of generating a direct current with high efficiency without rotating a field magnet or an armature. The non-rotating direct current electric generator according to the present invention is a direct current electric generator generating a direct current, and is characterized by comprising a drive unit and a generator unit, wherein the generator unit comprises: a rod-shaped core member; a field magnet having a first hollow part in the center part along with the winding of an electric line, and disposed on the outside of the core member through the first hollow part; and an armature having a second hollow part in the center part along with the winding of an electric line, and disposed on the outside of the core member through the first hollow part, wherein a pole piece is provided between the field magnet and the armature, an insulating plate is disposed between the field magnet and the pole piece and between the armature and the pole piece, and the drive unit supplies a field current to the generator unit on the basis of an alternating current from an alternating current power source.