TWI673942B - Variable magnetoresistance flywheel - Google Patents

Abstract

The present invention relates to a variable reluctance flywheel mechanism. The engine assembly of the plurality of coil stators includes a flywheel outer casing, a flywheel inner casing and a plurality of movable magnet assemblies. The flywheel outer casing is disposed on the crankshaft, the flywheel inner casing is disposed on the flywheel outer casing and is located inside the flywheel outer casing, and a plurality of movable magnet assemblies are disposed between the flywheel inner casing and the flywheel outer casing and surround a plurality of coil stators. Each movable magnet assembly includes a magnet core and an elastic member. The magnet core abuts against the inner shell of the flywheel by the elastic force of the elastic member, and can move freely between the inner shell of the flywheel and the outer shell of the flywheel. . Thereby, the movable magnet assembly can automatically adjust the distance between the magnet core and the coil stator and adjust the power generation amount according to the engine speed.

Description

Variable reluctance flywheel mechanism

The present invention relates to a variable reluctance flywheel mechanism, and more particularly to a variable reluctance flywheel mechanism that uses a movable magnet assembly to adjust power generation.

Personal vehicles commonly used today include automobiles and locomotives. Locomotives are vehicles driven by engines that mainly use two, three, or four wheels to control the direction of the handlebar. They are simple to operate, easy to move, and inexpensive. Has become the most commonly used means of transportation.

Generally, a locomotive uses a magnet provided on the flywheel and a coil stator fixed on the engine case. When the engine is running, the flywheel is synchronously driven to rotate the magnet on the flywheel and the coil stator. The flywheel rotates and cuts the magnetic field lines so that the magnetic field lines change with time, and an alternating induced potential occurs in the coil conductor, thereby generating electrical energy.

1 to 3B, which are a schematic diagram of a conventional engine assembly with a flywheel mechanism, a coil stator structure, a flywheel cross-sectional view, and a flywheel. The conventional flywheel mechanism is disposed on an engine assembly 10 having a crankshaft 101 and a plurality of coil stators 102, and includes: a flywheel outer casing 11, a flywheel inner casing 12, and a plurality of magnets 13.

The flywheel outer casing 11 is disposed on the crankshaft 101, the flywheel inner casing 12 is disposed on and inside the flywheel outer casing 11, and a plurality of magnets 13 are fixed between the flywheel inner casing 12 and the flywheel outer casing 11 and A plurality of coil stators 102 are arranged around the engine casing 103 of the engine assembly 10. Each coil stator 102 includes a metal steel sheet 1021 and a copper wire frame 1022. The copper wire frame 1022 is wound with metal steel. Tablet 1021. As a result, when the engine assembly 10 is running, the flywheel housing 11 is synchronously driven to rotate and generate electric energy.

However, the higher the engine speed, the higher the electrical energy it generates. In the past, in order to meet the engine's low-speed electrical energy requirements, excess electrical energy was consumed at high engine speeds, which is an additional energy loss for the engine.

Therefore, in order to solve the above-mentioned problem of excessive power generation of the engine at high speeds, the inventor conceived a variable reluctance flywheel mechanism based on the spirit of active invention and creation. It can automatically adjust the distance between the magnet core and the coil stator according to the engine speed to avoid the problem of excessive power generation. After several research experiments, the present invention has been completed.

The main purpose of the present invention is to solve the above-mentioned problems, and use the variable reluctance flywheel mechanism of the movable magnet assembly to adjust the power generation amount to improve the problem of excess power generation amount.

To achieve the above object, the variable reluctance flywheel mechanism of the present invention is provided on an engine assembly having a crankshaft and a plurality of coiled stators, including: a flywheel outer casing, a flywheel inner casing, and a plurality of movable magnets. Assembly. The flywheel outer casing is disposed on the crankshaft, the flywheel inner casing is disposed on the flywheel outer casing and is located inside the flywheel outer casing, and a plurality of movable magnet assemblies are disposed between the flywheel inner casing and the flywheel outer casing and surround a plurality of coil stators. Each movable magnet assembly includes a magnet core and a spring The magnetic member and the magnetic core abut against the inner shell of the flywheel by the elastic force of the elastic member, and can move freely between the inner shell of the flywheel and the outer shell of the flywheel.

The present invention may further include a plurality of guide grooves formed between the inner casing and the outer casing of the flywheel, the plurality of guide grooves correspondingly accommodate a plurality of movable magnet assemblies, and the crankshaft is used as a circle center. The magnetic core is displaced in the radial direction.

Each of the aforementioned elastic members may be one of a plate spring, a wire spring, and a disc spring.

Each of the above-mentioned movable magnet assemblies may further include a protective sleeve provided with a magnetic core.

Each of the above-mentioned movable magnet assemblies may further include a pivoting portion fixed on the inner casing of the flywheel and capable of rotating the protective sleeve.

In the present invention, the crankshaft is used as the center of the circle, and the pivoting portion may be located on one of two sides adjacent to the magnetic core in the circumferential direction.

Each of the aforementioned elastic members may be one of a plate spring, a wire spring, a disc spring, and a torsion spring.

Each of the above coil stators may include a metal steel sheet and a copper wire rod, and the copper wire rod is wound around the metal steel sheet.

The above summary and the following detailed description are exemplary in nature, and are intended to further illustrate the scope of patent application of the present invention. In order to make the above-mentioned objects, features, and advantages of the present invention easier to understand, the following descriptions and diagrams will be provided. Explain.

10‧‧‧ Engine Assembly

101‧‧‧ crankshaft

102‧‧‧coil stator

1021‧‧‧Metal steel sheet

1022‧‧‧Copper wire

103‧‧‧Engine housing

11‧‧‧ flywheel housing

12‧‧‧ Flywheel inner shell

13‧‧‧magnet

21‧‧‧ flywheel housing

22‧‧‧ Flywheel inner shell

23A, 23B, 23C‧‧‧Movable magnet assembly

231‧‧‧Magnet core

232a‧‧‧ leaf spring

232b‧‧‧Wire Spring

232c‧‧‧Disc spring

233‧‧‧Cover

24‧‧‧Guide groove

31‧‧‧flywheel housing

32‧‧‧ flywheel inner shell

33A, 33B, 33C, 33D‧‧‧movable magnet assembly

331‧‧‧Magnet core

332a‧‧‧ leaf spring

332b‧‧‧Wire Spring

332c‧‧‧Disc spring

332d‧‧‧torsion spring

333‧‧‧Protective case

334‧‧‧Pivot

D1, D2, D3, D4 ‧‧‧ distance

FIG. 1 is a schematic diagram of a conventional engine assembly with a flywheel mechanism.

FIG. 2 is a schematic diagram of a coil stator of a conventional engine assembly with a flywheel mechanism.

3A is a schematic cross-sectional view of a flywheel of an engine assembly with a conventional flywheel mechanism.

3B is a schematic diagram of a flywheel of an engine assembly with a conventional flywheel mechanism.

FIG. 4A is a schematic diagram illustrating the operation of the structure of the first embodiment of the variable reluctance flywheel mechanism of the present invention at a low rotation speed.

FIG. 4B is a schematic view showing the operation of the structure of the first embodiment of the variable reluctance flywheel mechanism of the present invention at a high rotation speed.

FIG. 5 is a schematic structural diagram of a movable magnet assembly with a linear spring according to the first embodiment of the variable reluctance flywheel mechanism of the present invention.

FIG. 6A is a schematic structural diagram of a movable magnet assembly with a disc spring in the first embodiment of the variable reluctance flywheel mechanism of the present invention.

FIG. 6B is a schematic structural diagram of a disc spring of a movable magnet assembly of a variable reluctance flywheel mechanism of the present invention.

FIG. 7A is a schematic diagram of the structure of the second embodiment of the variable reluctance flywheel mechanism of the present invention at a low rotation speed.

FIG. 7B is a schematic diagram of the structure of the second embodiment of the variable reluctance flywheel mechanism of the present invention at a high rotation speed.

8 is a schematic structural diagram of a movable magnet assembly with a linear spring according to a second embodiment of the variable reluctance flywheel mechanism of the present invention.

FIG. 9 is a schematic structural diagram of a movable magnet assembly with a disc spring according to a second embodiment of the variable reluctance flywheel mechanism of the present invention.

FIG. 10 is a schematic structural diagram of a movable magnet assembly with a torsion spring according to a second embodiment of the variable reluctance flywheel mechanism of the present invention.

Referring to FIG. 4A to FIG. 4B, it is a schematic diagram of a structure operation at a low rotation speed and a structural action diagram at a high rotation speed of the first embodiment of the variable reluctance flywheel mechanism of the present invention. The variable reluctance flywheel mechanism of the present invention is disposed on an engine assembly having a crankshaft and a plurality of coil stators, and includes: a flywheel outer casing 21, a flywheel inner casing 22, and four movable magnet assemblies 23A. And four guide grooves 24.

The flywheel outer casing 21 is disposed on the crankshaft, the flywheel inner casing 22 is disposed on and inside the flywheel outer casing 21, and the four movable magnet assemblies 23A are disposed between the flywheel inner casing 22 and the flywheel outer casing 21. A plurality of coil stators are arranged around the engine casing of the engine assembly. Each coil stator includes a metal steel sheet and a copper wire rod, and the copper wire rod is wound around the metal steel sheet. Component 23A includes a magnet core 231, a plate spring 232a, and a protective sleeve 233. The magnet core 231 abuts toward the flywheel inner casing 22 by the elastic force of the plate spring 232a, and can move freely in the flywheel Between the housing 22 and the flywheel outer body 21, a protective sleeve 233 is provided for the magnet core 231. Four guide grooves 24 are formed between the flywheel inner housing 22 and the flywheel outer body 21, and the four guide grooves 24 are respectively accommodated correspondingly. The four movable magnet assemblies are 23A, with the crankshaft installation as the center, and each guide groove 24 displaces each magnetic core 231 in the radial direction.

With the above structure, the movable magnet assembly 23A will correspond to the crankshaft rotation speed of the engine assembly, so that the distance between the magnet core 231 and the coil stator is automatically adjusted. As shown in FIG. 4A, the engine assembly is located at When the speed is low, the flywheel housing 21 is also at a low speed. The magnet core 231 is at a low speed. The centrifugal force received is small, and the elastic force of the plate-shaped spring 232a makes the magnet core 231 abut against the flywheel inner casing 22, so that there is a distance D1 between the magnet core 231 and the center of the flywheel outer body 21, and the magnet core The radial distance between 231 and the coil stator is relatively short, and the magnetic field lines are strong and can generate a large amount of power generation.

When the engine assembly is at a high speed, as shown in FIG. 4B, the centrifugal force received by the magnetic core 231 is large at high speed, and the magnetic core 231 presses the plate spring 232a to move away from the center of the flywheel housing 21, so A distance D2 greater than the distance D1 is formed between the magnetic core 231 and the center of the flywheel housing 21. At this time, the radial distance between the magnetic core 231 and the coil stator is relatively long, and the magnetic field lines are weak and can generate a small amount of power. In this way, the power generation demand at low engine speed can be met, and the problem of excess power generation at high engine speed can be solved.

5 to 6B, which are structural diagrams of a movable magnet assembly with a linear spring in the first embodiment of the variable reluctance flywheel mechanism of the present invention, and a movable magnet with a disc spring in the first embodiment. Schematic diagram of the assembly and the structure of the disc spring of the movable magnet assembly. FIG. 5 shows the linear spring 232b of the movable magnet assembly 23B, and FIGS. 6A and 6B show the disk spring 232c of the movable magnet assembly 23C, that is, the elastic member of the movable magnet assembly may be a plate spring One of 232a, a linear spring 232b, and a disc spring 232c, or other elastic members with the same effect.

Referring to FIG. 7A to FIG. 7B, it is a schematic diagram of a structural operation at a low speed and a structural action at a high speed of a second embodiment of the variable reluctance flywheel mechanism of the present invention. The variable reluctance flywheel mechanism of the present invention is disposed on an engine assembly having a crankshaft and a plurality of coiled stators, and includes: a flywheel outer casing 31, a flywheel inner casing 32, and four movable magnet assemblies 33A. .

The flywheel outer casing 31 is disposed on the crankshaft, the flywheel inner casing 32 is disposed on and inside the flywheel outer casing 31, and the four movable magnet assemblies 33A are disposed between the flywheel inner casing 32 and the flywheel outer casing 31. And surrounds a plurality of coil stators, and the plurality of coil stators are arranged at the lead of the engine assembly On the engine case, each coil stator includes a metal steel sheet and a copper wire rod, and the copper wire rod is wound around the metal steel sheet. Each movable magnet assembly 33A includes a magnet core 331, a plate spring 332a, and a protection. The sleeve 333 and a pivot portion 334, the magnet core 331 abut against the flywheel inner casing 32 by the elastic force of the plate spring 332a, and can move freely between the flywheel inner casing 32 and the flywheel outer casing 31. The protective sleeve 333 is used to set the magnetic core 331. The pivoting portion 334 is fixed on the flywheel inner casing 32 and can rotate the protective sleeve 333. The crankshaft is installed as the center. The pivoting portion 334 is located adjacent to the magnetic core 331. One of the two sides in the circumferential direction.

With the above structure, the movable magnet assembly 33A will correspond to the crankshaft rotation speed of the engine assembly, so that the distance between the magnet core 331 and the coil stator is automatically adjusted. As shown in FIG. 7A, in detail, the engine assembly is located at At low speeds, the centrifugal force received by the magnet core 331 is small, and the elastic force of the plate spring 332a makes the magnet core 331 abut against the flywheel inner casing 32, so that the magnet core 331 and the center of the flywheel housing 31 have The distance D3, at this time, the radial distance between the magnet core 331 and the coil stator is relatively short, the magnetic field lines are strong and a large amount of power can be generated.

When the engine assembly is at a high speed, as shown in FIG. 7B, the centrifugal force received by the magnetic core 331 is large at high speed. The magnetic core 331 rotates around the pivot 334 as an axis while being far away from the center of the flywheel housing 31. The distance D4 between the magnetic core 331 and the center of the flywheel housing 31 is greater than the distance D3. At this time, the radial distance between the magnetic core 331 and the coil stator is relatively long, and the magnetic field lines are weak and can generate smaller power generation. This can meet the power generation demand of the engine assembly at low speed, and can solve the problem of excessive power generation of the engine assembly at high speed.

8 to 10, which are structural diagrams of a movable magnet assembly with a linear spring in the second embodiment of the variable reluctance flywheel mechanism of the present invention, and a movable magnet with a disc spring in the second embodiment. Schematic diagram of the assembly and the structure of the movable magnet assembly with a torsion spring of the second embodiment schematic diagram. FIG. 8 shows the linear spring 332b of the movable magnet assembly 33B, FIG. 9 shows the disc spring 332c of the movable magnet assembly 33C, and FIG. 10 shows the torsion spring 332d of the movable magnet assembly 33D, that is, the movable magnet The elastic member of the assembly may be one of a plate spring 332a, a linear spring 332b, a disc spring 332c, and a torsion spring 332d, or other elastic members having the same effect.

From the above, it can be known that the variable reluctance flywheel mechanism of the present invention uses a movable magnet assembly to automatically adjust the distance between the magnet core and the coil stator and adjust the power generation amount according to the engine speed, and provides a higher power generation amount when the engine assembly has a low speed , The engine assembly provides lower power generation at high speeds to avoid the problem of excessive power generation.

The above embodiments are merely examples for the convenience of description. The scope of the claimed rights of the present invention should be based on the scope of the patent application, rather than being limited to the above embodiments.

Claims (8)

A variable reluctance flywheel mechanism is provided on an engine assembly having a crankshaft and a plurality of coiled stators. The flywheel mechanism includes: a flywheel outer casing disposed on the crankshaft; a flywheel inner casing; And a plurality of movable magnet assemblies are arranged between the flywheel inner casing and the flywheel outer casing and surround the plurality of coil stators, each of which is movable The magnet assembly includes a magnet core and an elastic member, and the magnet core abuts toward the inner shell of the flywheel by the elastic force of the elastic member, and is free to move on the inner shell of the flywheel and the outer shell of the flywheel. between. According to the variable reluctance flywheel mechanism described in item 1 of the scope of patent application, it further includes a plurality of guide grooves formed between the flywheel inner casing and the flywheel outer casing, and the plurality of guide grooves respectively accommodate the plurality of guide grooves. The movable magnet assembly uses the crankshaft as a circle center, and each guide groove displaces each magnetic core in a radial direction. According to the variable reluctance flywheel mechanism described in item 1 of the scope of patent application, wherein each elastic member is one of a plate spring, a wire spring, and a disc spring. According to the variable reluctance flywheel mechanism described in item 1 of the scope of patent application, wherein each movable magnet assembly further includes a protective sleeve provided with the magnetic core. The variable reluctance flywheel mechanism according to item 4 of the scope of the patent application, wherein each of the movable magnet assemblies further includes a pivoting portion fixed on the inner casing of the flywheel and capable of rotating the protective sleeve. The variable reluctance flywheel mechanism according to item 5 of the scope of the patent application, wherein the crankshaft is used as a circle center, and the pivot portion is located on one of two sides adjacent to the magnetic core in the circumferential direction. The variable reluctance flywheel mechanism according to item 5 of the scope of the patent application, wherein each elastic member is one of a plate spring, a wire spring, a disc spring, and a torsion spring. The variable reluctance flywheel mechanism according to item 1 of the scope of the patent application, wherein each coil stator system includes a metal steel sheet and a copper wire rod, and the copper wire rod is wound around the metal steel sheet.