Low-loss generator with asymmetric magnetic induction path

By optimizing the arrangement of the armature coil and the counter coil, and by adopting an asymmetric magnetic induction path design and iron core ferrite material, the problem of low energy conversion efficiency caused by reverse torque in traditional generators has been solved, achieving more efficient and stable power output.

CN121643387APending Publication Date: 2026-03-10SHENZHEN GUONENG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Traditional generators generate reverse torque when current flows through the armature coil, which reduces the rotor speed and requires more energy to maintain the speed, thus reducing energy conversion efficiency.

Method used

By optimizing the arrangement of the armature coil and the counter coil, adopting an asymmetric magnetic induction path design, using iron-core ferrite and permanent magnets, reducing reverse torque, optimizing the magnetic field distribution, and adding energy storage modules, the energy conversion efficiency of the generator can be improved.

Benefits of technology

It effectively reduces reverse torque, improves the energy conversion efficiency of the generator, achieves more stable power output and higher output current, and enhances the stability and reliability of the generator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a low-loss power generator having an asymmetric magnetic induction path, and more particularly, to a power generator different from a conventional power generator, which normally induces an electromotive force through an armature coil and heat while minimizing the electromotive force generated by a power generator rotor at the time of load output, thereby improving the energy conversion efficiency of the power generator. According to the invention, the energy conversion efficiency of the generator can be provided by reducing the reverse torque which hinders the rotation of the rotor.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a low-loss generator having an asymmetric magnetic induction path, and more particularly, to a low-loss generator that minimizes the force generated in a rotor of a generator at the time of load output while generating a normal induced electromotive force by optimizing the arrangement of an armature coil and a counter coil, thereby improving the energy conversion efficiency of the generator. BACKGROUND

[0002] A conventional generator generates an electromotive force through the interaction of an armature coil and a magnetic field. However, when current flows through the armature coil, a reverse torque that hinders the rotation of the rotor is generated, thereby reducing the energy conversion efficiency of the generator. For example, a conventional diesel generator having a rated power of 20500 KW consumes 730 times more fuel at 100% load operation than at no load, which is mainly due to the fact that the reverse torque generated when current flows through the armature coil reduces the rotational speed of the rotor, and thus more energy is required to maintain the rotational speed. SUMMARY

[0003] The present invention aims to improve the energy conversion efficiency of a generator by reducing the reverse torque that hinders the rotation of the rotor. Specific objectives include providing higher output current and output voltage than a conventional generator with the same size of armature coil, avoiding an increase in input energy even when the armature coil is short-circuited, and providing a structure such that the output current is independent of the rotational speed of the rotor, thereby achieving more stable power output.

[0004] According to one object of the present invention, there is provided a low-loss generator having an asymmetric magnetic induction path, including: a magnetic induction core (200) for winding, on which an armature coil (210) is wound; a first magnetic induction core (100) composed of a first vertical portion (110) and a first horizontal portion (120); a one-side unit (1000) including a second magnetic induction core (300) composed of a second vertical portion (310) and a second horizontal portion (320); a rotating shaft (2000) spaced apart from the front ends of the first magnetic induction core (100) and the second magnetic induction core (300); a first connection nose portion (3000) and a second connection nose portion (4000) installed on the rotating shaft, respectively, and having opposite polarities; a different-side unit (5000) having the same structure as the one-side unit and being arranged symmetrically with respect to the rotating shaft; the one-side unit (1000) and the different-side unit (5000) being paired to form a plurality of units around the rotating shaft (2000), and minimizing the reverse torque generated when current flows through the armature coil by optimizing the arrangement of the armature coil and the counter coil, thereby improving the energy conversion efficiency of the generator.

[0005] Furthermore, the first wiring nose (3000) and the second wiring nose (4000) are formed of permanent magnets to enhance the magnetic field strength and further reduce the reverse torque.

[0006] Furthermore, the materials of the winding magnetic induction core (200), the first magnetic induction core (100) and the second magnetic induction core (300) are iron core ferrite, so as to reduce eddy current losses and improve generator efficiency.

[0007] Furthermore, the planar portions of the first horizontal portion (120) and the opposite second vertical portion (310) are not connected, and the planar portions of the first vertical portion (110) and the opposite second horizontal portion (320) are not connected, in order to optimize the magnetic field distribution and reduce magnetic field interference.

[0008] Furthermore, the first wiring nose (3000) and the second wiring nose (4000) have opposite polarities and are alternately energized by NS and SN in sequence, so that the output current is independent of the rotor speed, thereby achieving a more stable power output.

[0009] Furthermore, the total number of the one-side units (1000) and the other-side units (5000) is odd to reduce interference caused by eddy currents and maximize rotational efficiency.

[0010] Furthermore, the generator also includes an energy storage module, which comprises a lithium battery pack and a supercapacitor, for outputting stable power and improving the reliability and stability of the generator.

[0011] According to another objective of the present invention, the present invention provides a method of using the above-described low-loss generator with an asymmetric magnetic induction path, comprising the following steps:

[0012] 1. Start the generator to make the rotor rotate under the drive of external power;

[0013] 2. Electromotive force is induced through the armature coil, while reverse torque is reduced by utilizing an optimized coil arrangement;

[0014] 3. Maintain stable rotor rotation under load, unaffected by reverse torque;

[0015] 4. Even when the armature coil is short-circuited, the rotor can continue to rotate normally, avoiding an increase in input energy.

[0016] Furthermore, during generator operation, the output current is regulated by a microprocessor control system to ensure the stability and consistency of the output current.

[0017] The technical solution of this invention effectively reduces reverse torque and improves the energy conversion efficiency of the generator by optimizing the arrangement of the armature coil and the counter coil. Simultaneously, by using iron core ferrite material and permanent magnets, losses are further reduced, improving the generator's performance. The overall structure is compact, suitable for various application scenarios, and boasts advantages such as high efficiency, high stability, and high reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a traditional generator.

[0019] Figure 2 This is a schematic diagram of magnetic field flow in a conventional generator.

[0020] Figure 3 This is a simplified schematic diagram of magnetic field flow in a traditional generator.

[0021] Figure 4 This is a perspective view of a low-loss generator with an asymmetric magnetic induction path according to the first embodiment of the present invention.

[0022] Figure 5 This is a plan view of a low-loss generator with an asymmetric magnetic induction path according to the first embodiment of the present invention.

[0023] Figure 6 This is a front view of a low-loss generator with an asymmetric magnetic induction path according to the first embodiment of the present invention.

[0024] Figure 7 This is a cross-sectional view along line A-A' of a low-loss generator with an asymmetric magnetic induction path according to the first embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the magnetic field of a low-loss generator with an asymmetric magnetic induction path according to the first embodiment of the present invention.

[0026] Figure 9 This is a cross-sectional view of a low-loss generator with an asymmetric magnetic induction path according to a second embodiment of the present invention.

[0027] Figure 10 This is a front view of a low-loss generator with an asymmetric magnetic induction path according to a third embodiment of the present invention. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] First Embodiment

[0032] like Figures 4 to 7 As shown, the low-loss generator with an asymmetric magnetic induction path of the present invention includes the following main components:

[0033] The winding uses a magnetic induction core (200) on which an armature coil (210) is wound. This magnetic induction core is one of the core components of the generator, used to generate a magnetic field and induced electromotive force.

[0034] The first magnetic induction core (100) is composed of a first vertical part (110) and a first horizontal part (120). The first vertical part (110) is vertically connected to one side of the winding magnetic induction core (200) at one of its tips, while the first horizontal part (120) is connected to the winding magnetic induction core parallel to the tip of the first vertical part.

[0035] The second magnetic induction core (300) is composed of a second vertical part (310) and a second horizontal part (320). The second vertical part (310) is vertically connected to the other side of the winding magnetic induction core (200) at one end, while the second horizontal part (320) is connected to the winding magnetic induction core parallel to the end of the second vertical part.

[0036] A rotating shaft (2000) is formed, spaced apart from the front ends of the first magnetic induction core (100) and the second magnetic induction core (300). The rotating shaft is the rotation center of the generator and is used to support the rotation of the rotor section.

[0037] The first wiring nose (3000) and the second wiring nose (4000) are mounted on the rotating shaft respectively, with opposite polarities. These two wiring noses are used to generate a magnetic field, and the opposite polarity design further optimizes the interaction of the magnetic fields and reduces the generation of reverse torque.

[0038] One side unit (1000) and the other side unit (5000) are located on opposite sides of the rotating shaft, with identical structures and arranged opposite each other. This symmetrical arrangement makes the generator more stable during operation and the output current more consistent.

[0039] In this embodiment, the structural design of the first magnetic induction core (100) and the second magnetic induction core (300) makes the magnetic field distribution more uniform and reduces the generation of reverse torque. Specifically, the planar portions of the first horizontal portion (120) and the opposite second vertical portion (310) are not connected, and the planar portions of the first vertical portion (110) and the opposite second horizontal portion (320) are also not connected. This design optimizes the magnetic field distribution, reduces magnetic field interference, and thus improves the energy conversion efficiency of the generator.

[0040] Furthermore, the polarities of the first wiring nose (3000) and the second wiring nose (4000) are opposite, and they are alternately energized in the order of NS and SN, so that the output current is independent of the rotor speed, thereby achieving a more stable power output.

[0041] Second Embodiment

[0042] like Figure 5 As shown, the second embodiment of the present invention further optimizes the polarity arrangement of the wiring noses based on the first embodiment. The first wiring nose (3000) and the second wiring nose (4000) are each composed of multiple N poles and S poles, with opposite polarities. This design further improves the output capacity of the generator.

[0043] Specifically, the first terminal lug (3000) and the second terminal lug (4000) form a multi-pole magnetic field by sequentially arranging an even number of N poles and S poles. This multi-pole magnetic field design makes the interaction of the magnetic fields more uniform, further reducing the generation of reverse torque and improving the energy conversion efficiency of the generator.

[0044] Third Embodiment

[0045] like Figure 6As shown, the third embodiment of the present invention, based on the first embodiment, adds multiple units, such that one side unit (1000) and the other side unit (5000) are symmetrically arranged around the rotation axis (2000). This design further improves the generator's output capacity and energy conversion efficiency.

[0046] Specifically, units on one side (1000) and units on the other side (5000) are arranged in pairs, and the total number is odd. This odd-number arrangement reduces interference caused by eddy currents and maximizes rotational efficiency. In addition, the symmetrical arrangement of multiple units makes the generator more stable during operation and the output current more consistent.

[0047] Working principle

[0048] Start-up phase: The generator drives the rotating shaft (2000) to rotate through external power (such as diesel engine, water turbine, etc.), which in turn drives the first magnetic induction core (100) and the second magnetic induction core (300) to rotate.

[0049] Induced electromotive force: When the rotating shaft rotates, the armature coil (210) moves in the magnetic field. According to Faraday's law of electromagnetic induction, an electromotive force is induced in the armature coil.

[0050] Reduced reverse torque: By optimizing the arrangement of the armature coil and the counter coil, and by designing the first terminal lug (3000) and the second terminal lug (4000) with opposite polarities, the reverse torque generated when current flows through the armature coil is reduced, thereby improving the energy conversion efficiency of the generator.

[0051] Stable output: Regardless of changes in rotor speed, the output current remains constant, improving the stability and reliability of the generator.

[0052] Short circuit protection: Even if the armature coil is short-circuited, the rotor will not generate reverse torque, avoiding an increase in input energy and improving the safety of the generator.

[0053] The present invention described above is not limited to the detailed description, usage examples, and drawings of the invention described herein, and is not limited to the invention described in the following patent claims.

[0054] Within the scope of the ideas and fields of this invention, various modifications and alterations made by those skilled in the art are of course also included within the scope of this invention.

Claims

1. A low-loss electric generator having an asymmetric magnetic induction path, comprising: The winding magnetic core (200) has an armature coil (210) wound thereon; the first magnetic core (100) is composed of a first vertical part (110) and a first horizontal part (120); the second magnetic core (300) is composed of a second vertical part (310) and a second horizontal part (320); the rotating shaft (2000) is spaced apart from the front ends of the first magnetic core and the second magnetic core; the first connecting nose (3000) and the second connecting nose (4000) are respectively installed on the rotating shaft and have opposite polarities; the one-side unit (1000) and the other-side unit (5000) are respectively located on the two sides of the rotating shaft and have the same structure and opposite arrangement; characterized in that the arrangement of the armature coil and the counter coil is optimized to minimize the reverse torque generated when the current flows through the armature coil, thereby improving the energy conversion efficiency of the generator.

2. A low-loss electrical generator with asymmetric magnetic induction path according to claim 1, characterized in that, The first connecting nose (3000) and the second connecting nose (4000) are formed by permanent magnets.

3. A low loss electrical generator with asymmetric magnetic induction path according to claim 1, characterized in that, The materials of the winding magnetic core (200), the first magnetic core (100) and the second magnetic core (300) are core ferrite.

4. The low loss electrical generator with asymmetric magnetic induction path of claim 1, wherein, The one-side unit (1000) and the other-side unit (5000) form a plurality of units in pairs around the rotating shaft (2000).

5. A low loss electrical generator with asymmetric magnetic induction path according to claim 1, characterized in that, The planar part of the first horizontal part (120) and the second vertical part (310) opposite thereto are not connected, and the planar part of the first vertical part (110) and the second horizontal part (320) opposite thereto are not connected.